1619 files changed, 69265 insertions, 34247 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 795d0ca714bf..8f5d076baeb0 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -106,7 +106,7 @@ obj-y				+= i2c/ media/
 obj-$(CONFIG_PPS)		+= pps/
 obj-$(CONFIG_PTP_1588_CLOCK)	+= ptp/
 obj-$(CONFIG_W1)		+= w1/
-obj-$(CONFIG_POWER_SUPPLY)	+= power/
+obj-y				+= power/
 obj-$(CONFIG_HWMON)		+= hwmon/
 obj-$(CONFIG_THERMAL)		+= thermal/
 obj-$(CONFIG_WATCHDOG)		+= watchdog/
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 5eef4cb4f70e..82b96ee8624c 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -58,14 +58,25 @@ config ACPI_CCA_REQUIRED
 	bool
 
 config ACPI_DEBUGGER
-	bool "AML debugger interface (EXPERIMENTAL)"
+	bool "AML debugger interface"
 	select ACPI_DEBUG
 	help
-	  Enable in-kernel debugging of AML facilities: statistics, internal
-	  object dump, single step control method execution.
+	  Enable in-kernel debugging of AML facilities: statistics,
+	  internal object dump, single step control method execution.
 	  This is still under development, currently enabling this only
 	  results in the compilation of the ACPICA debugger files.
 
+if ACPI_DEBUGGER
+
+config ACPI_DEBUGGER_USER
+	tristate "Userspace debugger accessiblity"
+	depends on DEBUG_FS
+	help
+	  Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
+	  to access the debugger functionalities.
+
+endif
+
 config ACPI_SLEEP
 	bool
 	depends on SUSPEND || HIBERNATION
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 675eaf337178..cb648a49543a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -8,13 +8,13 @@ ccflags-$(CONFIG_ACPI_DEBUG)	+= -DACPI_DEBUG_OUTPUT
 #
 # ACPI Boot-Time Table Parsing
 #
-obj-y				+= tables.o
+obj-$(CONFIG_ACPI)		+= tables.o
 obj-$(CONFIG_X86)		+= blacklist.o
 
 #
 # ACPI Core Subsystem (Interpreter)
 #
-obj-y				+= acpi.o \
+obj-$(CONFIG_ACPI)		+= acpi.o \
 					acpica/
 
 # All the builtin files are in the "acpi." module_param namespace.
@@ -66,10 +66,10 @@ obj-$(CONFIG_ACPI_FAN)		+= fan.o
 obj-$(CONFIG_ACPI_VIDEO)	+= video.o
 obj-$(CONFIG_ACPI_PCI_SLOT)	+= pci_slot.o
 obj-$(CONFIG_ACPI_PROCESSOR)	+= processor.o
-obj-y				+= container.o
+obj-$(CONFIG_ACPI)		+= container.o
 obj-$(CONFIG_ACPI_THERMAL)	+= thermal.o
 obj-$(CONFIG_ACPI_NFIT)		+= nfit.o
-obj-y				+= acpi_memhotplug.o
+obj-$(CONFIG_ACPI)		+= acpi_memhotplug.o
 obj-$(CONFIG_ACPI_HOTPLUG_IOAPIC) += ioapic.o
 obj-$(CONFIG_ACPI_BATTERY)	+= battery.o
 obj-$(CONFIG_ACPI_SBS)		+= sbshc.o
@@ -79,6 +79,7 @@ obj-$(CONFIG_ACPI_EC_DEBUGFS)	+= ec_sys.o
 obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o
 obj-$(CONFIG_ACPI_BGRT)		+= bgrt.o
 obj-$(CONFIG_ACPI_CPPC_LIB)	+= cppc_acpi.o
+obj-$(CONFIG_ACPI_DEBUGGER_USER) += acpi_dbg.o
 
 # processor has its own "processor." module_param namespace
 processor-y			:= processor_driver.o
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index a450e7af877c..d507cf6deda0 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -51,7 +51,7 @@ struct apd_private_data {
 	const struct apd_device_desc *dev_desc;
 };
 
-#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
+#if defined(CONFIG_X86_AMD_PLATFORM_DEVICE) || defined(CONFIG_ARM64)
 #define APD_ADDR(desc)	((unsigned long)&desc)
 
 static int acpi_apd_setup(struct apd_private_data *pdata)
@@ -71,6 +71,7 @@ static int acpi_apd_setup(struct apd_private_data *pdata)
 	return 0;
 }
 
+#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
 static struct apd_device_desc cz_i2c_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 133000000,
@@ -80,6 +81,14 @@ static struct apd_device_desc cz_uart_desc = {
 	.setup = acpi_apd_setup,
 	.fixed_clk_rate = 48000000,
 };
+#endif
+
+#ifdef CONFIG_ARM64
+static struct apd_device_desc xgene_i2c_desc = {
+	.setup = acpi_apd_setup,
+	.fixed_clk_rate = 100000000,
+};
+#endif
 
 #else
 
@@ -132,9 +141,14 @@ static int acpi_apd_create_device(struct acpi_device *adev,
 
 static const struct acpi_device_id acpi_apd_device_ids[] = {
 	/* Generic apd devices */
+#ifdef CONFIG_X86_AMD_PLATFORM_DEVICE
 	{ "AMD0010", APD_ADDR(cz_i2c_desc) },
 	{ "AMD0020", APD_ADDR(cz_uart_desc) },
 	{ "AMD0030", },
+#endif
+#ifdef CONFIG_ARM64
+	{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
+#endif
 	{ }
 };
 
diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c
new file mode 100644
index 000000000000..15e4604efba7
--- /dev/null
+++ b/drivers/acpi/acpi_dbg.c
@@ -0,0 +1,804 @@
+/*
+ * ACPI AML interfacing support
+ *
+ * Copyright (C) 2015, Intel Corporation
+ * Authors: Lv Zheng <lv.zheng@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* #define DEBUG */
+#define pr_fmt(fmt) "ACPI : AML: " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/wait.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/kthread.h>
+#include <linux/proc_fs.h>
+#include <linux/debugfs.h>
+#include <linux/circ_buf.h>
+#include <linux/acpi.h>
+#include "internal.h"
+
+#define ACPI_AML_BUF_ALIGN	(sizeof (acpi_size))
+#define ACPI_AML_BUF_SIZE	PAGE_SIZE
+
+#define circ_count(circ) \
+	(CIRC_CNT((circ)->head, (circ)->tail, ACPI_AML_BUF_SIZE))
+#define circ_count_to_end(circ) \
+	(CIRC_CNT_TO_END((circ)->head, (circ)->tail, ACPI_AML_BUF_SIZE))
+#define circ_space(circ) \
+	(CIRC_SPACE((circ)->head, (circ)->tail, ACPI_AML_BUF_SIZE))
+#define circ_space_to_end(circ) \
+	(CIRC_SPACE_TO_END((circ)->head, (circ)->tail, ACPI_AML_BUF_SIZE))
+
+#define ACPI_AML_OPENED		0x0001
+#define ACPI_AML_CLOSED		0x0002
+#define ACPI_AML_IN_USER	0x0004 /* user space is writing cmd */
+#define ACPI_AML_IN_KERN	0x0008 /* kernel space is reading cmd */
+#define ACPI_AML_OUT_USER	0x0010 /* user space is reading log */
+#define ACPI_AML_OUT_KERN	0x0020 /* kernel space is writing log */
+#define ACPI_AML_USER		(ACPI_AML_IN_USER | ACPI_AML_OUT_USER)
+#define ACPI_AML_KERN		(ACPI_AML_IN_KERN | ACPI_AML_OUT_KERN)
+#define ACPI_AML_BUSY		(ACPI_AML_USER | ACPI_AML_KERN)
+#define ACPI_AML_OPEN		(ACPI_AML_OPENED | ACPI_AML_CLOSED)
+
+struct acpi_aml_io {
+	wait_queue_head_t wait;
+	unsigned long flags;
+	unsigned long users;
+	struct mutex lock;
+	struct task_struct *thread;
+	char out_buf[ACPI_AML_BUF_SIZE] __aligned(ACPI_AML_BUF_ALIGN);
+	struct circ_buf out_crc;
+	char in_buf[ACPI_AML_BUF_SIZE] __aligned(ACPI_AML_BUF_ALIGN);
+	struct circ_buf in_crc;
+	acpi_osd_exec_callback function;
+	void *context;
+	unsigned long usages;
+};
+
+static struct acpi_aml_io acpi_aml_io;
+static bool acpi_aml_initialized;
+static struct file *acpi_aml_active_reader;
+static struct dentry *acpi_aml_dentry;
+
+static inline bool __acpi_aml_running(void)
+{
+	return acpi_aml_io.thread ? true : false;
+}
+
+static inline bool __acpi_aml_access_ok(unsigned long flag)
+{
+	/*
+	 * The debugger interface is in opened state (OPENED && !CLOSED),
+	 * then it is allowed to access the debugger buffers from either
+	 * user space or the kernel space.
+	 * In addition, for the kernel space, only the debugger thread
+	 * (thread ID matched) is allowed to access.
+	 */
+	if (!(acpi_aml_io.flags & ACPI_AML_OPENED) ||
+	    (acpi_aml_io.flags & ACPI_AML_CLOSED) ||
+	    !__acpi_aml_running())
+		return false;
+	if ((flag & ACPI_AML_KERN) &&
+	    current != acpi_aml_io.thread)
+		return false;
+	return true;
+}
+
+static inline bool __acpi_aml_readable(struct circ_buf *circ, unsigned long flag)
+{
+	/*
+	 * Another read is not in progress and there is data in buffer
+	 * available for read.
+	 */
+	if (!(acpi_aml_io.flags & flag) && circ_count(circ))
+		return true;
+	return false;
+}
+
+static inline bool __acpi_aml_writable(struct circ_buf *circ, unsigned long flag)
+{
+	/*
+	 * Another write is not in progress and there is buffer space
+	 * available for write.
+	 */
+	if (!(acpi_aml_io.flags & flag) && circ_space(circ))
+		return true;
+	return false;
+}
+
+static inline bool __acpi_aml_busy(void)
+{
+	if (acpi_aml_io.flags & ACPI_AML_BUSY)
+		return true;
+	return false;
+}
+
+static inline bool __acpi_aml_opened(void)
+{
+	if (acpi_aml_io.flags & ACPI_AML_OPEN)
+		return true;
+	return false;
+}
+
+static inline bool __acpi_aml_used(void)
+{
+	return acpi_aml_io.usages ? true : false;
+}
+
+static inline bool acpi_aml_running(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = __acpi_aml_running();
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_busy(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = __acpi_aml_busy();
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_used(void)
+{
+	bool ret;
+
+	/*
+	 * The usage count is prepared to avoid race conditions between the
+	 * starts and the stops of the debugger thread.
+	 */
+	mutex_lock(&acpi_aml_io.lock);
+	ret = __acpi_aml_used();
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_kern_readable(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = !__acpi_aml_access_ok(ACPI_AML_IN_KERN) ||
+	      __acpi_aml_readable(&acpi_aml_io.in_crc, ACPI_AML_IN_KERN);
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_kern_writable(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = !__acpi_aml_access_ok(ACPI_AML_OUT_KERN) ||
+	      __acpi_aml_writable(&acpi_aml_io.out_crc, ACPI_AML_OUT_KERN);
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_user_readable(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = !__acpi_aml_access_ok(ACPI_AML_OUT_USER) ||
+	      __acpi_aml_readable(&acpi_aml_io.out_crc, ACPI_AML_OUT_USER);
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static bool acpi_aml_user_writable(void)
+{
+	bool ret;
+
+	mutex_lock(&acpi_aml_io.lock);
+	ret = !__acpi_aml_access_ok(ACPI_AML_IN_USER) ||
+	      __acpi_aml_writable(&acpi_aml_io.in_crc, ACPI_AML_IN_USER);
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static int acpi_aml_lock_write(struct circ_buf *circ, unsigned long flag)
+{
+	int ret = 0;
+
+	mutex_lock(&acpi_aml_io.lock);
+	if (!__acpi_aml_access_ok(flag)) {
+		ret = -EFAULT;
+		goto out;
+	}
+	if (!__acpi_aml_writable(circ, flag)) {
+		ret = -EAGAIN;
+		goto out;
+	}
+	acpi_aml_io.flags |= flag;
+out:
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static int acpi_aml_lock_read(struct circ_buf *circ, unsigned long flag)
+{
+	int ret = 0;
+
+	mutex_lock(&acpi_aml_io.lock);
+	if (!__acpi_aml_access_ok(flag)) {
+		ret = -EFAULT;
+		goto out;
+	}
+	if (!__acpi_aml_readable(circ, flag)) {
+		ret = -EAGAIN;
+		goto out;
+	}
+	acpi_aml_io.flags |= flag;
+out:
+	mutex_unlock(&acpi_aml_io.lock);
+	return ret;
+}
+
+static void acpi_aml_unlock_fifo(unsigned long flag, bool wakeup)
+{
+	mutex_lock(&acpi_aml_io.lock);
+	acpi_aml_io.flags &= ~flag;
+	if (wakeup)
+		wake_up_interruptible(&acpi_aml_io.wait);
+	mutex_unlock(&acpi_aml_io.lock);
+}
+
+static int acpi_aml_write_kern(const char *buf, int len)
+{
+	int ret;
+	struct circ_buf *crc = &acpi_aml_io.out_crc;
+	int n;
+	char *p;
+
+	ret = acpi_aml_lock_write(crc, ACPI_AML_OUT_KERN);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+	/* sync tail before inserting logs */
+	smp_mb();
+	p = &crc->buf[crc->head];
+	n = min(len, circ_space_to_end(crc));
+	memcpy(p, buf, n);
+	/* sync head after inserting logs */
+	smp_wmb();
+	crc->head = (crc->head + n) & (ACPI_AML_BUF_SIZE - 1);
+	acpi_aml_unlock_fifo(ACPI_AML_OUT_KERN, true);
+	return n;
+}
+
+static int acpi_aml_readb_kern(void)
+{
+	int ret;
+	struct circ_buf *crc = &acpi_aml_io.in_crc;
+	char *p;
+
+	ret = acpi_aml_lock_read(crc, ACPI_AML_IN_KERN);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+	/* sync head before removing cmds */
+	smp_rmb();
+	p = &crc->buf[crc->tail];
+	ret = (int)*p;
+	/* sync tail before inserting cmds */
+	smp_mb();
+	crc->tail = (crc->tail + 1) & (ACPI_AML_BUF_SIZE - 1);
+	acpi_aml_unlock_fifo(ACPI_AML_IN_KERN, true);
+	return ret;
+}
+
+/*
+ * acpi_aml_write_log() - Capture debugger output
+ * @msg: the debugger output
+ *
+ * This function should be used to implement acpi_os_printf() to filter out
+ * the debugger output and store the output into the debugger interface
+ * buffer. Return the size of stored logs or errno.
+ */
+static ssize_t acpi_aml_write_log(const char *msg)
+{
+	int ret = 0;
+	int count = 0, size = 0;
+
+	if (!acpi_aml_initialized)
+		return -ENODEV;
+	if (msg)
+		count = strlen(msg);
+	while (count > 0) {
+again:
+		ret = acpi_aml_write_kern(msg + size, count);
+		if (ret == -EAGAIN) {
+			ret = wait_event_interruptible(acpi_aml_io.wait,
+				acpi_aml_kern_writable());
+			/*
+			 * We need to retry when the condition
+			 * becomes true.
+			 */
+			if (ret == 0)
+				goto again;
+			break;
+		}
+		if (IS_ERR_VALUE(ret))
+			break;
+		size += ret;
+		count -= ret;
+	}
+	return size > 0 ? size : ret;
+}
+
+/*
+ * acpi_aml_read_cmd() - Capture debugger input
+ * @msg: the debugger input
+ * @size: the size of the debugger input
+ *
+ * This function should be used to implement acpi_os_get_line() to capture
+ * the debugger input commands and store the input commands into the
+ * debugger interface buffer. Return the size of stored commands or errno.
+ */
+static ssize_t acpi_aml_read_cmd(char *msg, size_t count)
+{
+	int ret = 0;
+	int size = 0;
+
+	/*
+	 * This is ensured by the running fact of the debugger thread
+	 * unless a bug is introduced.
+	 */
+	BUG_ON(!acpi_aml_initialized);
+	while (count > 0) {
+again:
+		/*
+		 * Check each input byte to find the end of the command.
+		 */
+		ret = acpi_aml_readb_kern();
+		if (ret == -EAGAIN) {
+			ret = wait_event_interruptible(acpi_aml_io.wait,
+				acpi_aml_kern_readable());
+			/*
+			 * We need to retry when the condition becomes
+			 * true.
+			 */
+			if (ret == 0)
+				goto again;
+		}
+		if (IS_ERR_VALUE(ret))
+			break;
+		*(msg + size) = (char)ret;
+		size++;
+		count--;
+		if (ret == '\n') {
+			/*
+			 * acpi_os_get_line() requires a zero terminated command
+			 * string.
+			 */
+			*(msg + size - 1) = '\0';
+			break;
+		}
+	}
+	return size > 0 ? size : ret;
+}
+
+static int acpi_aml_thread(void *unsed)
+{
+	acpi_osd_exec_callback function = NULL;
+	void *context;
+
+	mutex_lock(&acpi_aml_io.lock);
+	if (acpi_aml_io.function) {
+		acpi_aml_io.usages++;
+		function = acpi_aml_io.function;
+		context = acpi_aml_io.context;
+	}
+	mutex_unlock(&acpi_aml_io.lock);
+
+	if (function)
+		function(context);
+
+	mutex_lock(&acpi_aml_io.lock);
+	acpi_aml_io.usages--;
+	if (!__acpi_aml_used()) {
+		acpi_aml_io.thread = NULL;
+		wake_up(&acpi_aml_io.wait);
+	}
+	mutex_unlock(&acpi_aml_io.lock);
+
+	return 0;
+}
+
+/*
+ * acpi_aml_create_thread() - Create AML debugger thread
+ * @function: the debugger thread callback
+ * @context: the context to be passed to the debugger thread
+ *
+ * This function should be used to implement acpi_os_execute() which is
+ * used by the ACPICA debugger to create the debugger thread.
+ */
+static int acpi_aml_create_thread(acpi_osd_exec_callback function, void *context)
+{
+	struct task_struct *t;
+
+	mutex_lock(&acpi_aml_io.lock);
+	acpi_aml_io.function = function;
+	acpi_aml_io.context = context;
+	mutex_unlock(&acpi_aml_io.lock);
+
+	t = kthread_create(acpi_aml_thread, NULL, "aml");
+	if (IS_ERR(t)) {
+		pr_err("Failed to create AML debugger thread.\n");
+		return PTR_ERR(t);
+	}
+
+	mutex_lock(&acpi_aml_io.lock);
+	acpi_aml_io.thread = t;
+	acpi_set_debugger_thread_id((acpi_thread_id)(unsigned long)t);
+	wake_up_process(t);
+	mutex_unlock(&acpi_aml_io.lock);
+	return 0;
+}
+
+static int acpi_aml_wait_command_ready(bool single_step,
+				       char *buffer, size_t length)
+{
+	acpi_status status;
+
+	if (single_step)
+		acpi_os_printf("\n%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
+	else
+		acpi_os_printf("\n%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
+
+	status = acpi_os_get_line(buffer, length, NULL);
+	if (ACPI_FAILURE(status))
+		return -EINVAL;
+	return 0;
+}
+
+static int acpi_aml_notify_command_complete(void)
+{
+	return 0;
+}
+
+static int acpi_aml_open(struct inode *inode, struct file *file)
+{
+	int ret = 0;
+	acpi_status status;
+
+	mutex_lock(&acpi_aml_io.lock);
+	/*
+	 * The debugger interface is being closed, no new user is allowed
+	 * during this period.
+	 */
+	if (acpi_aml_io.flags & ACPI_AML_CLOSED) {
+		ret = -EBUSY;
+		goto err_lock;
+	}
+	if ((file->f_flags & O_ACCMODE) != O_WRONLY) {
+		/*
+		 * Only one reader is allowed to initiate the debugger
+		 * thread.
+		 */
+		if (acpi_aml_active_reader) {
+			ret = -EBUSY;
+			goto err_lock;
+		} else {
+			pr_debug("Opening debugger reader.\n");
+			acpi_aml_active_reader = file;
+		}
+	} else {
+		/*
+		 * No writer is allowed unless the debugger thread is
+		 * ready.
+		 */
+		if (!(acpi_aml_io.flags & ACPI_AML_OPENED)) {
+			ret = -ENODEV;
+			goto err_lock;
+		}
+	}
+	if (acpi_aml_active_reader == file) {
+		pr_debug("Opening debugger interface.\n");
+		mutex_unlock(&acpi_aml_io.lock);
+
+		pr_debug("Initializing debugger thread.\n");
+		status = acpi_initialize_debugger();
+		if (ACPI_FAILURE(status)) {
+			pr_err("Failed to initialize debugger.\n");
+			ret = -EINVAL;
+			goto err_exit;
+		}
+		pr_debug("Debugger thread initialized.\n");
+
+		mutex_lock(&acpi_aml_io.lock);
+		acpi_aml_io.flags |= ACPI_AML_OPENED;
+		acpi_aml_io.out_crc.head = acpi_aml_io.out_crc.tail = 0;
+		acpi_aml_io.in_crc.head = acpi_aml_io.in_crc.tail = 0;
+		pr_debug("Debugger interface opened.\n");
+	}
+	acpi_aml_io.users++;
+err_lock:
+	if (IS_ERR_VALUE(ret)) {
+		if (acpi_aml_active_reader == file)
+			acpi_aml_active_reader = NULL;
+	}
+	mutex_unlock(&acpi_aml_io.lock);
+err_exit:
+	return ret;
+}
+
+static int acpi_aml_release(struct inode *inode, struct file *file)
+{
+	mutex_lock(&acpi_aml_io.lock);
+	acpi_aml_io.users--;
+	if (file == acpi_aml_active_reader) {
+		pr_debug("Closing debugger reader.\n");
+		acpi_aml_active_reader = NULL;
+
+		pr_debug("Closing debugger interface.\n");
+		acpi_aml_io.flags |= ACPI_AML_CLOSED;
+
+		/*
+		 * Wake up all user space/kernel space blocked
+		 * readers/writers.
+		 */
+		wake_up_interruptible(&acpi_aml_io.wait);
+		mutex_unlock(&acpi_aml_io.lock);
+		/*
+		 * Wait all user space/kernel space readers/writers to
+		 * stop so that ACPICA command loop of the debugger thread
+		 * should fail all its command line reads after this point.
+		 */
+		wait_event(acpi_aml_io.wait, !acpi_aml_busy());
+
+		/*
+		 * Then we try to terminate the debugger thread if it is
+		 * not terminated.
+		 */
+		pr_debug("Terminating debugger thread.\n");
+		acpi_terminate_debugger();
+		wait_event(acpi_aml_io.wait, !acpi_aml_used());
+		pr_debug("Debugger thread terminated.\n");
+
+		mutex_lock(&acpi_aml_io.lock);
+		acpi_aml_io.flags &= ~ACPI_AML_OPENED;
+	}
+	if (acpi_aml_io.users == 0) {
+		pr_debug("Debugger interface closed.\n");
+		acpi_aml_io.flags &= ~ACPI_AML_CLOSED;
+	}
+	mutex_unlock(&acpi_aml_io.lock);
+	return 0;
+}
+
+static int acpi_aml_read_user(char __user *buf, int len)
+{
+	int ret;
+	struct circ_buf *crc = &acpi_aml_io.out_crc;
+	int n;
+	char *p;
+
+	ret = acpi_aml_lock_read(crc, ACPI_AML_OUT_USER);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+	/* sync head before removing logs */
+	smp_rmb();
+	p = &crc->buf[crc->tail];
+	n = min(len, circ_count_to_end(crc));
+	if (copy_to_user(buf, p, n)) {
+		ret = -EFAULT;
+		goto out;
+	}
+	/* sync tail after removing logs */
+	smp_mb();
+	crc->tail = (crc->tail + n) & (ACPI_AML_BUF_SIZE - 1);
+	ret = n;
+out:
+	acpi_aml_unlock_fifo(ACPI_AML_OUT_USER, !IS_ERR_VALUE(ret));
+	return ret;
+}
+
+static ssize_t acpi_aml_read(struct file *file, char __user *buf,
+			     size_t count, loff_t *ppos)
+{
+	int ret = 0;
+	int size = 0;
+
+	if (!count)
+		return 0;
+	if (!access_ok(VERIFY_WRITE, buf, count))
+		return -EFAULT;
+
+	while (count > 0) {
+again:
+		ret = acpi_aml_read_user(buf + size, count);
+		if (ret == -EAGAIN) {
+			if (file->f_flags & O_NONBLOCK)
+				break;
+			else {
+				ret = wait_event_interruptible(acpi_aml_io.wait,
+					acpi_aml_user_readable());
+				/*
+				 * We need to retry when the condition
+				 * becomes true.
+				 */
+				if (ret == 0)
+					goto again;
+			}
+		}
+		if (IS_ERR_VALUE(ret)) {
+			if (!acpi_aml_running())
+				ret = 0;
+			break;
+		}
+		if (ret) {
+			size += ret;
+			count -= ret;
+			*ppos += ret;
+			break;
+		}
+	}
+	return size > 0 ? size : ret;
+}
+
+static int acpi_aml_write_user(const char __user *buf, int len)
+{
+	int ret;
+	struct circ_buf *crc = &acpi_aml_io.in_crc;
+	int n;
+	char *p;
+
+	ret = acpi_aml_lock_write(crc, ACPI_AML_IN_USER);
+	if (IS_ERR_VALUE(ret))
+		return ret;
+	/* sync tail before inserting cmds */
+	smp_mb();
+	p = &crc->buf[crc->head];
+	n = min(len, circ_space_to_end(crc));
+	if (copy_from_user(p, buf, n)) {
+		ret = -EFAULT;
+		goto out;
+	}
+	/* sync head after inserting cmds */
+	smp_wmb();
+	crc->head = (crc->head + n) & (ACPI_AML_BUF_SIZE - 1);
+	ret = n;
+out:
+	acpi_aml_unlock_fifo(ACPI_AML_IN_USER, !IS_ERR_VALUE(ret));
+	return n;
+}
+
+static ssize_t acpi_aml_write(struct file *file, const char __user *buf,
+			      size_t count, loff_t *ppos)
+{
+	int ret = 0;
+	int size = 0;
+
+	if (!count)
+		return 0;
+	if (!access_ok(VERIFY_READ, buf, count))
+		return -EFAULT;
+
+	while (count > 0) {
+again:
+		ret = acpi_aml_write_user(buf + size, count);
+		if (ret == -EAGAIN) {
+			if (file->f_flags & O_NONBLOCK)
+				break;
+			else {
+				ret = wait_event_interruptible(acpi_aml_io.wait,
+					acpi_aml_user_writable());
+				/*
+				 * We need to retry when the condition
+				 * becomes true.
+				 */
+				if (ret == 0)
+					goto again;
+			}
+		}
+		if (IS_ERR_VALUE(ret)) {
+			if (!acpi_aml_running())
+				ret = 0;
+			break;
+		}
+		if (ret) {
+			size += ret;
+			count -= ret;
+			*ppos += ret;
+		}
+	}
+	return size > 0 ? size : ret;
+}
+
+static unsigned int acpi_aml_poll(struct file *file, poll_table *wait)
+{
+	int masks = 0;
+
+	poll_wait(file, &acpi_aml_io.wait, wait);
+	if (acpi_aml_user_readable())
+		masks |= POLLIN | POLLRDNORM;
+	if (acpi_aml_user_writable())
+		masks |= POLLOUT | POLLWRNORM;
+
+	return masks;
+}
+
+static const struct file_operations acpi_aml_operations = {
+	.read		= acpi_aml_read,
+	.write		= acpi_aml_write,
+	.poll		= acpi_aml_poll,
+	.open		= acpi_aml_open,
+	.release	= acpi_aml_release,
+	.llseek		= generic_file_llseek,
+};
+
+static const struct acpi_debugger_ops acpi_aml_debugger = {
+	.create_thread		 = acpi_aml_create_thread,
+	.read_cmd		 = acpi_aml_read_cmd,
+	.write_log		 = acpi_aml_write_log,
+	.wait_command_ready	 = acpi_aml_wait_command_ready,
+	.notify_command_complete = acpi_aml_notify_command_complete,
+};
+
+int __init acpi_aml_init(void)
+{
+	int ret = 0;
+
+	if (!acpi_debugfs_dir) {
+		ret = -ENOENT;
+		goto err_exit;
+	}
+
+	/* Initialize AML IO interface */
+	mutex_init(&acpi_aml_io.lock);
+	init_waitqueue_head(&acpi_aml_io.wait);
+	acpi_aml_io.out_crc.buf = acpi_aml_io.out_buf;
+	acpi_aml_io.in_crc.buf = acpi_aml_io.in_buf;
+	acpi_aml_dentry = debugfs_create_file("acpidbg",
+					      S_IFREG | S_IRUGO | S_IWUSR,
+					      acpi_debugfs_dir, NULL,
+					      &acpi_aml_operations);
+	if (acpi_aml_dentry == NULL) {
+		ret = -ENODEV;
+		goto err_exit;
+	}
+	ret = acpi_register_debugger(THIS_MODULE, &acpi_aml_debugger);
+	if (ret)
+		goto err_fs;
+	acpi_aml_initialized = true;
+
+err_fs:
+	if (ret) {
+		debugfs_remove(acpi_aml_dentry);
+		acpi_aml_dentry = NULL;
+	}
+err_exit:
+	return ret;
+}
+
+void __exit acpi_aml_exit(void)
+{
+	if (acpi_aml_initialized) {
+		acpi_unregister_debugger(&acpi_aml_debugger);
+		if (acpi_aml_dentry) {
+			debugfs_remove(acpi_aml_dentry);
+			acpi_aml_dentry = NULL;
+		}
+		acpi_aml_initialized = false;
+	}
+}
+
+module_init(acpi_aml_init);
+module_exit(acpi_aml_exit);
+
+MODULE_AUTHOR("Lv Zheng");
+MODULE_DESCRIPTION("ACPI debugger userspace IO driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index f9e0d09f7c66..047281a6ae11 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -15,6 +15,7 @@
 #include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/mutex.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/clk-lpss.h>
 #include <linux/pm_runtime.h>
@@ -26,6 +27,10 @@ ACPI_MODULE_NAME("acpi_lpss");
 
 #ifdef CONFIG_X86_INTEL_LPSS
 
+#include <asm/cpu_device_id.h>
+#include <asm/iosf_mbi.h>
+#include <asm/pmc_atom.h>
+
 #define LPSS_ADDR(desc) ((unsigned long)&desc)
 
 #define LPSS_CLK_SIZE	0x04
@@ -71,7 +76,7 @@ struct lpss_device_desc {
 	void (*setup)(struct lpss_private_data *pdata);
 };
 
-static struct lpss_device_desc lpss_dma_desc = {
+static const struct lpss_device_desc lpss_dma_desc = {
 	.flags = LPSS_CLK,
 };
 
@@ -84,6 +89,23 @@ struct lpss_private_data {
 	u32 prv_reg_ctx[LPSS_PRV_REG_COUNT];
 };
 
+/* LPSS run time quirks */
+static unsigned int lpss_quirks;
+
+/*
+ * LPSS_QUIRK_ALWAYS_POWER_ON: override power state for LPSS DMA device.
+ *
+ * The LPSS DMA controller has neither _PS0 nor _PS3 method. Moreover
+ * it can be powered off automatically whenever the last LPSS device goes down.
+ * In case of no power any access to the DMA controller will hang the system.
+ * The behaviour is reproduced on some HP laptops based on Intel BayTrail as
+ * well as on ASuS T100TA transformer.
+ *
+ * This quirk overrides power state of entire LPSS island to keep DMA powered
+ * on whenever we have at least one other device in use.
+ */
+#define LPSS_QUIRK_ALWAYS_POWER_ON	BIT(0)
+
 /* UART Component Parameter Register */
 #define LPSS_UART_CPR			0xF4
 #define LPSS_UART_CPR_AFCE		BIT(4)
@@ -196,13 +218,21 @@ static const struct lpss_device_desc bsw_i2c_dev_desc = {
 	.setup = byt_i2c_setup,
 };
 
-static struct lpss_device_desc bsw_spi_dev_desc = {
+static const struct lpss_device_desc bsw_spi_dev_desc = {
 	.flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX
 			| LPSS_NO_D3_DELAY,
 	.prv_offset = 0x400,
 	.setup = lpss_deassert_reset,
 };
 
+#define ICPU(model)	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
+
+static const struct x86_cpu_id lpss_cpu_ids[] = {
+	ICPU(0x37),	/* Valleyview, Bay Trail */
+	ICPU(0x4c),	/* Braswell, Cherry Trail */
+	{}
+};
+
 #else
 
 #define LPSS_ADDR(desc) (0UL)
@@ -574,6 +604,17 @@ static void acpi_lpss_restore_ctx(struct device *dev,
 {
 	unsigned int i;
 
+	for (i = 0; i < LPSS_PRV_REG_COUNT; i++) {
+		unsigned long offset = i * sizeof(u32);
+
+		__lpss_reg_write(pdata->prv_reg_ctx[i], pdata, offset);
+		dev_dbg(dev, "restoring 0x%08x to LPSS reg at offset 0x%02lx\n",
+			pdata->prv_reg_ctx[i], offset);
+	}
+}
+
+static void acpi_lpss_d3_to_d0_delay(struct lpss_private_data *pdata)
+{
 	/*
 	 * The following delay is needed or the subsequent write operations may
 	 * fail. The LPSS devices are actually PCI devices and the PCI spec
@@ -586,14 +627,34 @@ static void acpi_lpss_restore_ctx(struct device *dev,
 		delay = 0;
 
 	msleep(delay);
+}
 
-	for (i = 0; i < LPSS_PRV_REG_COUNT; i++) {
-		unsigned long offset = i * sizeof(u32);
+static int acpi_lpss_activate(struct device *dev)
+{
+	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
+	int ret;
 
-		__lpss_reg_write(pdata->prv_reg_ctx[i], pdata, offset);
-		dev_dbg(dev, "restoring 0x%08x to LPSS reg at offset 0x%02lx\n",
-			pdata->prv_reg_ctx[i], offset);
-	}
+	ret = acpi_dev_runtime_resume(dev);
+	if (ret)
+		return ret;
+
+	acpi_lpss_d3_to_d0_delay(pdata);
+
+	/*
+	 * This is called only on ->probe() stage where a device is either in
+	 * known state defined by BIOS or most likely powered off. Due to this
+	 * we have to deassert reset line to be sure that ->probe() will
+	 * recognize the device.
+	 */
+	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
+		lpss_deassert_reset(pdata);
+
+	return 0;
+}
+
+static void acpi_lpss_dismiss(struct device *dev)
+{
+	acpi_dev_runtime_suspend(dev);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -621,6 +682,8 @@ static int acpi_lpss_resume_early(struct device *dev)
 	if (ret)
 		return ret;
 
+	acpi_lpss_d3_to_d0_delay(pdata);
+
 	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
 		acpi_lpss_restore_ctx(dev, pdata);
 
@@ -628,6 +691,89 @@ static int acpi_lpss_resume_early(struct device *dev)
 }
 #endif /* CONFIG_PM_SLEEP */
 
+/* IOSF SB for LPSS island */
+#define LPSS_IOSF_UNIT_LPIOEP		0xA0
+#define LPSS_IOSF_UNIT_LPIO1		0xAB
+#define LPSS_IOSF_UNIT_LPIO2		0xAC
+
+#define LPSS_IOSF_PMCSR			0x84
+#define LPSS_PMCSR_D0			0
+#define LPSS_PMCSR_D3hot		3
+#define LPSS_PMCSR_Dx_MASK		GENMASK(1, 0)
+
+#define LPSS_IOSF_GPIODEF0		0x154
+#define LPSS_GPIODEF0_DMA1_D3		BIT(2)
+#define LPSS_GPIODEF0_DMA2_D3		BIT(3)
+#define LPSS_GPIODEF0_DMA_D3_MASK	GENMASK(3, 2)
+
+static DEFINE_MUTEX(lpss_iosf_mutex);
+
+static void lpss_iosf_enter_d3_state(void)
+{
+	u32 value1 = 0;
+	u32 mask1 = LPSS_GPIODEF0_DMA_D3_MASK;
+	u32 value2 = LPSS_PMCSR_D3hot;
+	u32 mask2 = LPSS_PMCSR_Dx_MASK;
+	/*
+	 * PMC provides an information about actual status of the LPSS devices.
+	 * Here we read the values related to LPSS power island, i.e. LPSS
+	 * devices, excluding both LPSS DMA controllers, along with SCC domain.
+	 */
+	u32 func_dis, d3_sts_0, pmc_status, pmc_mask = 0xfe000ffe;
+	int ret;
+
+	ret = pmc_atom_read(PMC_FUNC_DIS, &func_dis);
+	if (ret)
+		return;
+
+	mutex_lock(&lpss_iosf_mutex);
+
+	ret = pmc_atom_read(PMC_D3_STS_0, &d3_sts_0);
+	if (ret)
+		goto exit;
+
+	/*
+	 * Get the status of entire LPSS power island per device basis.
+	 * Shutdown both LPSS DMA controllers if and only if all other devices
+	 * are already in D3hot.
+	 */
+	pmc_status = (~(d3_sts_0 | func_dis)) & pmc_mask;
+	if (pmc_status)
+		goto exit;
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIO1, MBI_CFG_WRITE,
+			LPSS_IOSF_PMCSR, value2, mask2);
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIO2, MBI_CFG_WRITE,
+			LPSS_IOSF_PMCSR, value2, mask2);
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIOEP, MBI_CR_WRITE,
+			LPSS_IOSF_GPIODEF0, value1, mask1);
+exit:
+	mutex_unlock(&lpss_iosf_mutex);
+}
+
+static void lpss_iosf_exit_d3_state(void)
+{
+	u32 value1 = LPSS_GPIODEF0_DMA1_D3 | LPSS_GPIODEF0_DMA2_D3;
+	u32 mask1 = LPSS_GPIODEF0_DMA_D3_MASK;
+	u32 value2 = LPSS_PMCSR_D0;
+	u32 mask2 = LPSS_PMCSR_Dx_MASK;
+
+	mutex_lock(&lpss_iosf_mutex);
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIOEP, MBI_CR_WRITE,
+			LPSS_IOSF_GPIODEF0, value1, mask1);
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIO2, MBI_CFG_WRITE,
+			LPSS_IOSF_PMCSR, value2, mask2);
+
+	iosf_mbi_modify(LPSS_IOSF_UNIT_LPIO1, MBI_CFG_WRITE,
+			LPSS_IOSF_PMCSR, value2, mask2);
+
+	mutex_unlock(&lpss_iosf_mutex);
+}
+
 static int acpi_lpss_runtime_suspend(struct device *dev)
 {
 	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
@@ -640,7 +786,17 @@ static int acpi_lpss_runtime_suspend(struct device *dev)
 	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
 		acpi_lpss_save_ctx(dev, pdata);
 
-	return acpi_dev_runtime_suspend(dev);
+	ret = acpi_dev_runtime_suspend(dev);
+
+	/*
+	 * This call must be last in the sequence, otherwise PMC will return
+	 * wrong status for devices being about to be powered off. See
+	 * lpss_iosf_enter_d3_state() for further information.
+	 */
+	if (lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())
+		lpss_iosf_enter_d3_state();
+
+	return ret;
 }
 
 static int acpi_lpss_runtime_resume(struct device *dev)
@@ -648,10 +804,19 @@ static int acpi_lpss_runtime_resume(struct device *dev)
 	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
 	int ret;
 
+	/*
+	 * This call is kept first to be in symmetry with
+	 * acpi_lpss_runtime_suspend() one.
+	 */
+	if (lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())
+		lpss_iosf_exit_d3_state();
+
 	ret = acpi_dev_runtime_resume(dev);
 	if (ret)
 		return ret;
 
+	acpi_lpss_d3_to_d0_delay(pdata);
+
 	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
 		acpi_lpss_restore_ctx(dev, pdata);
 
@@ -660,6 +825,10 @@ static int acpi_lpss_runtime_resume(struct device *dev)
 #endif /* CONFIG_PM */
 
 static struct dev_pm_domain acpi_lpss_pm_domain = {
+#ifdef CONFIG_PM
+	.activate = acpi_lpss_activate,
+	.dismiss = acpi_lpss_dismiss,
+#endif
 	.ops = {
 #ifdef CONFIG_PM
 #ifdef CONFIG_PM_SLEEP
@@ -705,8 +874,14 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb,
 	}
 
 	switch (action) {
-	case BUS_NOTIFY_ADD_DEVICE:
+	case BUS_NOTIFY_BIND_DRIVER:
 		pdev->dev.pm_domain = &acpi_lpss_pm_domain;
+		break;
+	case BUS_NOTIFY_DRIVER_NOT_BOUND:
+	case BUS_NOTIFY_UNBOUND_DRIVER:
+		pdev->dev.pm_domain = NULL;
+		break;
+	case BUS_NOTIFY_ADD_DEVICE:
 		if (pdata->dev_desc->flags & LPSS_LTR)
 			return sysfs_create_group(&pdev->dev.kobj,
 						  &lpss_attr_group);
@@ -714,7 +889,6 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb,
 	case BUS_NOTIFY_DEL_DEVICE:
 		if (pdata->dev_desc->flags & LPSS_LTR)
 			sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group);
-		pdev->dev.pm_domain = NULL;
 		break;
 	default:
 		break;
@@ -754,10 +928,19 @@ static struct acpi_scan_handler lpss_handler = {
 
 void __init acpi_lpss_init(void)
 {
-	if (!lpt_clk_init()) {
-		bus_register_notifier(&platform_bus_type, &acpi_lpss_nb);
-		acpi_scan_add_handler(&lpss_handler);
-	}
+	const struct x86_cpu_id *id;
+	int ret;
+
+	ret = lpt_clk_init();
+	if (ret)
+		return;
+
+	id = x86_match_cpu(lpss_cpu_ids);
+	if (id)
+		lpss_quirks |= LPSS_QUIRK_ALWAYS_POWER_ON;
+
+	bus_register_notifier(&platform_bus_type, &acpi_lpss_nb);
+	acpi_scan_add_handler(&lpss_handler);
 }
 
 #else
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 48fc3ad13a4b..67d97c0090a2 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -367,7 +367,7 @@ static struct acpi_scan_handler acpi_pnp_handler = {
  */
 static int is_cmos_rtc_device(struct acpi_device *adev)
 {
-	struct acpi_device_id ids[] = {
+	static const struct acpi_device_id ids[] = {
 		{ "PNP0B00" },
 		{ "PNP0B01" },
 		{ "PNP0B02" },
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 3405f7a41e25..06a006ff89b0 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -77,14 +77,21 @@ module_param(allow_duplicates, bool, 0644);
 static int disable_backlight_sysfs_if = -1;
 module_param(disable_backlight_sysfs_if, int, 0444);
 
+#define REPORT_OUTPUT_KEY_EVENTS		0x01
+#define REPORT_BRIGHTNESS_KEY_EVENTS		0x02
+static int report_key_events = -1;
+module_param(report_key_events, int, 0644);
+MODULE_PARM_DESC(report_key_events,
+	"0: none, 1: output changes, 2: brightness changes, 3: all");
+
 static bool device_id_scheme = false;
 module_param(device_id_scheme, bool, 0444);
 
 static bool only_lcd = false;
 module_param(only_lcd, bool, 0444);
 
-static int register_count;
-static DEFINE_MUTEX(register_count_mutex);
+static DECLARE_COMPLETION(register_done);
+static DEFINE_MUTEX(register_done_mutex);
 static struct mutex video_list_lock;
 static struct list_head video_bus_head;
 static int acpi_video_bus_add(struct acpi_device *device);
@@ -412,6 +419,13 @@ static int video_enable_only_lcd(const struct dmi_system_id *d)
 	return 0;
 }
 
+static int video_set_report_key_events(const struct dmi_system_id *id)
+{
+	if (report_key_events == -1)
+		report_key_events = (uintptr_t)id->driver_data;
+	return 0;
+}
+
 static struct dmi_system_id video_dmi_table[] = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
@@ -500,6 +514,24 @@ static struct dmi_system_id video_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile M9410"),
 		},
 	},
+	/*
+	 * Some machines report wrong key events on the acpi-bus, suppress
+	 * key event reporting on these.  Note this is only intended to work
+	 * around events which are plain wrong. In some cases we get double
+	 * events, in this case acpi-video is considered the canonical source
+	 * and the events from the other source should be filtered. E.g.
+	 * by calling acpi_video_handles_brightness_key_presses() from the
+	 * vendor acpi/wmi driver or by using /lib/udev/hwdb.d/60-keyboard.hwdb
+	 */
+	{
+	 .callback = video_set_report_key_events,
+	 .driver_data = (void *)((uintptr_t)REPORT_OUTPUT_KEY_EVENTS),
+	 .ident = "Dell Vostro V131",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
+		},
+	},
 	{}
 };
 
@@ -1480,7 +1512,7 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
 		/* Something vetoed the keypress. */
 		keycode = 0;
 
-	if (keycode) {
+	if (keycode && (report_key_events & REPORT_OUTPUT_KEY_EVENTS)) {
 		input_report_key(input, keycode, 1);
 		input_sync(input);
 		input_report_key(input, keycode, 0);
@@ -1544,7 +1576,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 
 	acpi_notifier_call_chain(device, event, 0);
 
-	if (keycode) {
+	if (keycode && (report_key_events & REPORT_BRIGHTNESS_KEY_EVENTS)) {
 		input_report_key(input, keycode, 1);
 		input_sync(input);
 		input_report_key(input, keycode, 0);
@@ -2017,8 +2049,8 @@ int acpi_video_register(void)
 {
 	int ret = 0;
 
-	mutex_lock(&register_count_mutex);
-	if (register_count) {
+	mutex_lock(&register_done_mutex);
+	if (completion_done(&register_done)) {
 		/*
 		 * if the function of acpi_video_register is already called,
 		 * don't register the acpi_vide_bus again and return no error.
@@ -2039,22 +2071,22 @@ int acpi_video_register(void)
 	 * When the acpi_video_bus is loaded successfully, increase
 	 * the counter reference.
 	 */
-	register_count = 1;
+	complete(&register_done);
 
 leave:
-	mutex_unlock(&register_count_mutex);
+	mutex_unlock(&register_done_mutex);
 	return ret;
 }
 EXPORT_SYMBOL(acpi_video_register);
 
 void acpi_video_unregister(void)
 {
-	mutex_lock(&register_count_mutex);
-	if (register_count) {
+	mutex_lock(&register_done_mutex);
+	if (completion_done(&register_done)) {
 		acpi_bus_unregister_driver(&acpi_video_bus);
-		register_count = 0;
+		reinit_completion(&register_done);
 	}
-	mutex_unlock(&register_count_mutex);
+	mutex_unlock(&register_done_mutex);
 }
 EXPORT_SYMBOL(acpi_video_unregister);
 
@@ -2062,15 +2094,29 @@ void acpi_video_unregister_backlight(void)
 {
 	struct acpi_video_bus *video;
 
-	mutex_lock(&register_count_mutex);
-	if (register_count) {
+	mutex_lock(&register_done_mutex);
+	if (completion_done(&register_done)) {
 		mutex_lock(&video_list_lock);
 		list_for_each_entry(video, &video_bus_head, entry)
 			acpi_video_bus_unregister_backlight(video);
 		mutex_unlock(&video_list_lock);
 	}
-	mutex_unlock(&register_count_mutex);
+	mutex_unlock(&register_done_mutex);
+}
+
+bool acpi_video_handles_brightness_key_presses(void)
+{
+	bool have_video_busses;
+
+	wait_for_completion(&register_done);
+	mutex_lock(&video_list_lock);
+	have_video_busses = !list_empty(&video_bus_head);
+	mutex_unlock(&video_list_lock);
+
+	return have_video_busses &&
+	       (report_key_events & REPORT_BRIGHTNESS_KEY_EVENTS);
 }
+EXPORT_SYMBOL(acpi_video_handles_brightness_key_presses);
 
 /*
  * This is kind of nasty. Hardware using Intel chipsets may require
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 885936f79542..f682374c19f4 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -50,6 +50,7 @@ acpi-y +=		\
 	exdump.o	\
 	exfield.o	\
 	exfldio.o	\
+	exmisc.o	\
 	exmutex.o	\
 	exnames.o	\
 	exoparg1.o	\
@@ -57,7 +58,6 @@ acpi-y +=		\
 	exoparg3.o	\
 	exoparg6.o	\
 	exprep.o	\
-	exmisc.o	\
 	exregion.o	\
 	exresnte.o	\
 	exresolv.o	\
@@ -66,6 +66,7 @@ acpi-y +=		\
 	exstoren.o	\
 	exstorob.o	\
 	exsystem.o	\
+	extrace.o	\
 	exutils.o
 
 acpi-y +=		\
@@ -196,7 +197,6 @@ acpi-$(ACPI_FUTURE_USAGE) +=	\
 	dbfileio.o		\
 	dbtest.o		\
 	utcache.o		\
-	utfileio.o		\
 	utprint.o		\
 	uttrack.o		\
 	utuuid.o
diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index e4cc48fbf4ee..8b4ff40a294c 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -44,6 +44,8 @@
 #ifndef _ACAPPS
 #define _ACAPPS
 
+#include <stdio.h>
+
 /* Common info for tool signons */
 
 #define ACPICA_NAME                 "Intel ACPI Component Architecture"
@@ -85,11 +87,40 @@
 	acpi_os_printf (description);
 
 #define ACPI_OPTION(name, description) \
-	acpi_os_printf (" %-18s%s\n", name, description);
+	acpi_os_printf (" %-20s%s\n", name, description);
+
+/* Check for unexpected exceptions */
+
+#define ACPI_CHECK_STATUS(name, status, expected) \
+	if (status != expected) \
+	{ \
+		acpi_os_printf ("Unexpected %s from %s (%s-%d)\n", \
+			acpi_format_exception (status), #name, _acpi_module_name, __LINE__); \
+	}
+
+/* Check for unexpected non-AE_OK errors */
+
+#define ACPI_CHECK_OK(name, status)   ACPI_CHECK_STATUS (name, status, AE_OK);
 
 #define FILE_SUFFIX_DISASSEMBLY     "dsl"
 #define FILE_SUFFIX_BINARY_TABLE    ".dat"	/* Needs the dot */
 
+/* acfileio */
+
+acpi_status
+ac_get_all_tables_from_file(char *filename,
+			    u8 get_only_aml_tables,
+			    struct acpi_new_table_desc **return_list_head);
+
+u8 ac_is_file_binary(FILE * file);
+
+acpi_status ac_validate_table_header(FILE * file, long table_offset);
+
+/* Values for get_only_aml_tables */
+
+#define ACPI_GET_ONLY_AML_TABLES    TRUE
+#define ACPI_GET_ALL_TABLES         FALSE
+
 /*
  * getopt
  */
@@ -107,30 +138,6 @@ extern char *acpi_gbl_optarg;
  */
 u32 cm_get_file_size(ACPI_FILE file);
 
-#ifndef ACPI_DUMP_APP
-/*
- * adisasm
- */
-acpi_status
-ad_aml_disassemble(u8 out_to_file,
-		   char *filename, char *prefix, char **out_filename);
-
-void ad_print_statistics(void);
-
-acpi_status ad_find_dsdt(u8 **dsdt_ptr, u32 *dsdt_length);
-
-void ad_dump_tables(void);
-
-acpi_status ad_get_local_tables(void);
-
-acpi_status
-ad_parse_table(struct acpi_table_header *table,
-	       acpi_owner_id * owner_id, u8 load_table, u8 external);
-
-acpi_status ad_display_tables(char *filename, struct acpi_table_header *table);
-
-acpi_status ad_display_statistics(void);
-
 /*
  * adwalk
  */
@@ -168,6 +175,5 @@ char *ad_generate_filename(char *prefix, char *table_id);
 void
 ad_write_table(struct acpi_table_header *table,
 	       u32 length, char *table_name, char *oem_table_id);
-#endif
 
 #endif				/* _ACAPPS */
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index c928ba494c40..ecb05f1c1d5c 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -80,9 +80,15 @@ struct acpi_db_execute_walk {
 /*
  * dbxface - external debugger interfaces
  */
-acpi_status
-acpi_db_single_step(struct acpi_walk_state *walk_state,
-		    union acpi_parse_object *op, u32 op_type);
+ACPI_DBR_DEPENDENT_RETURN_OK(acpi_status
+			     acpi_db_single_step(struct acpi_walk_state
+						 *walk_state,
+						 union acpi_parse_object *op,
+						 u32 op_type))
+ ACPI_DBR_DEPENDENT_RETURN_VOID(void
+				acpi_db_signal_break_point(struct
+							   acpi_walk_state
+							   *walk_state))
 
 /*
  * dbcmds - debug commands and output routines
@@ -182,11 +188,15 @@ void acpi_db_display_method_info(union acpi_parse_object *op);
 
 void acpi_db_decode_and_display_object(char *target, char *output_type);
 
-void
-acpi_db_display_result_object(union acpi_operand_object *obj_desc,
-			      struct acpi_walk_state *walk_state);
+ACPI_DBR_DEPENDENT_RETURN_VOID(void
+			       acpi_db_display_result_object(union
+							     acpi_operand_object
+							     *obj_desc,
+							     struct
+							     acpi_walk_state
+							     *walk_state))
 
-acpi_status acpi_db_display_all_methods(char *display_count_arg);
+ acpi_status acpi_db_display_all_methods(char *display_count_arg);
 
 void acpi_db_display_arguments(void);
 
@@ -198,9 +208,13 @@ void acpi_db_display_calling_tree(void);
 
 void acpi_db_display_object_type(char *object_arg);
 
-void
-acpi_db_display_argument_object(union acpi_operand_object *obj_desc,
-				struct acpi_walk_state *walk_state);
+ACPI_DBR_DEPENDENT_RETURN_VOID(void
+			       acpi_db_display_argument_object(union
+							       acpi_operand_object
+							       *obj_desc,
+							       struct
+							       acpi_walk_state
+							       *walk_state))
 
 /*
  * dbexec - debugger control method execution
@@ -231,10 +245,7 @@ void acpi_db_open_debug_file(char *name);
 
 acpi_status acpi_db_load_acpi_table(char *filename);
 
-acpi_status
-acpi_db_get_table_from_file(char *filename,
-			    struct acpi_table_header **table,
-			    u8 must_be_aml_table);
+acpi_status acpi_db_load_tables(struct acpi_new_table_desc *list_head);
 
 /*
  * dbhistry - debugger HISTORY command
@@ -257,7 +268,7 @@ acpi_db_command_dispatch(char *input_buffer,
 
 void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context);
 
-acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op);
+acpi_status acpi_db_user_commands(void);
 
 char *acpi_db_get_next_token(char *string,
 			     char **next, acpi_object_type * return_type);
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 228704b78657..d18f18409071 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -161,6 +161,11 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 /*
  * evhandler - Address space handling
  */
+union acpi_operand_object *acpi_ev_find_region_handler(acpi_adr_space_type
+						       space_id,
+						       union acpi_operand_object
+						       *handler_obj);
+
 u8
 acpi_ev_has_default_handler(struct acpi_namespace_node *node,
 			    acpi_adr_space_type space_id);
@@ -193,9 +198,11 @@ void
 acpi_ev_detach_region(union acpi_operand_object *region_obj,
 		      u8 acpi_ns_is_locked);
 
-acpi_status
+void acpi_ev_associate_reg_method(union acpi_operand_object *region_obj);
+
+void
 acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
-			    acpi_adr_space_type space_id);
+			    acpi_adr_space_type space_id, u32 function);
 
 acpi_status
 acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function);
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index faa97604d878..73462cac41d2 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -145,6 +145,7 @@ ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
 
 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_early_initialization, TRUE);
 
 /* Global handlers */
 
@@ -164,7 +165,7 @@ ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
 
 /* Initialization sequencing */
 
-ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_reg_methods_enabled, FALSE);
 
 /* Misc */
 
@@ -326,7 +327,6 @@ ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
 #ifdef ACPI_DEBUGGER
 
 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
-ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
 ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
 
 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
@@ -345,7 +345,6 @@ ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
 
 /* These buffers should all be the same size */
 
-ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
@@ -360,9 +359,6 @@ ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
 
-ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_ready);
-ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_complete);
-
 #endif				/* ACPI_DEBUGGER */
 
 /*****************************************************************************
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index e1dd784d8515..24928ec444de 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -219,6 +219,13 @@ struct acpi_table_list {
 #define ACPI_ROOT_ORIGIN_ALLOCATED      (1)
 #define ACPI_ROOT_ALLOW_RESIZE          (2)
 
+/* List to manage incoming ACPI tables */
+
+struct acpi_new_table_desc {
+	struct acpi_table_header *table;
+	struct acpi_new_table_desc *next;
+};
+
 /* Predefined table indexes */
 
 #define ACPI_INVALID_TABLE_INDEX        (0xFFFFFFFF)
@@ -388,7 +395,8 @@ union acpi_predefined_info {
 
 /* Return object auto-repair info */
 
-typedef acpi_status(*acpi_object_converter) (union acpi_operand_object
+typedef acpi_status(*acpi_object_converter) (struct acpi_namespace_node * scope,
+					     union acpi_operand_object
 					     *original_object,
 					     union acpi_operand_object
 					     **converted_object);
@@ -420,6 +428,7 @@ struct acpi_simple_repair_info {
 
 struct acpi_reg_walk_info {
 	acpi_adr_space_type space_id;
+	u32 function;
 	u32 reg_run_count;
 };
 
@@ -861,6 +870,7 @@ struct acpi_parse_state {
 #define ACPI_PARSEOP_CLOSING_PAREN      0x10
 #define ACPI_PARSEOP_COMPOUND           0x20
 #define ACPI_PARSEOP_ASSIGNMENT         0x40
+#define ACPI_PARSEOP_ELSEIF             0x80
 
 /*****************************************************************************
  *
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index e85366ceb15a..bad5bca03acc 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -401,17 +401,6 @@
 #endif
 
 /*
- * Some code only gets executed when the debugger is built in.
- * Note that this is entirely independent of whether the
- * DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
- */
-#ifdef ACPI_DEBUGGER
-#define ACPI_DEBUGGER_EXEC(a)           a
-#else
-#define ACPI_DEBUGGER_EXEC(a)
-#endif
-
-/*
  * Macros used for ACPICA utilities only
  */
 
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 5d261c942a0d..d082e62d7308 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -77,6 +77,7 @@
 /* Object is not a package element */
 
 #define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
+#define ACPI_ALL_PACKAGE_ELEMENTS   (ACPI_UINT32_MAX-1)
 
 /* Always emit warning message, not dependent on node flags */
 
@@ -183,13 +184,20 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 			  union acpi_operand_object **return_object);
 
 acpi_status
-acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
+acpi_ns_convert_to_unicode(struct acpi_namespace_node *scope,
+			   union acpi_operand_object *original_object,
 			   union acpi_operand_object **return_object);
 
 acpi_status
-acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
+acpi_ns_convert_to_resource(struct acpi_namespace_node *scope,
+			    union acpi_operand_object *original_object,
 			    union acpi_operand_object **return_object);
 
+acpi_status
+acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
+			     union acpi_operand_object *original_object,
+			     union acpi_operand_object **return_object);
+
 /*
  * nsdump - Namespace dump/print utilities
  */
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 0bd02c4a5f75..2b154cfbe136 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -93,9 +93,10 @@
 #define AOPOBJ_AML_CONSTANT         0x01	/* Integer is an AML constant */
 #define AOPOBJ_STATIC_POINTER       0x02	/* Data is part of an ACPI table, don't delete */
 #define AOPOBJ_DATA_VALID           0x04	/* Object is initialized and data is valid */
-#define AOPOBJ_OBJECT_INITIALIZED   0x08	/* Region is initialized, _REG was run */
-#define AOPOBJ_SETUP_COMPLETE       0x10	/* Region setup is complete */
-#define AOPOBJ_INVALID              0x20	/* Host OS won't allow a Region address */
+#define AOPOBJ_OBJECT_INITIALIZED   0x08	/* Region is initialized */
+#define AOPOBJ_REG_CONNECTED        0x10	/* _REG was run */
+#define AOPOBJ_SETUP_COMPLETE       0x20	/* Region setup is complete */
+#define AOPOBJ_INVALID              0x40	/* Host OS won't allow a Region address */
 
 /******************************************************************************
  *
diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h
index f9acf92fa0bc..324512db62bf 100644
--- a/drivers/acpi/acpica/acopcode.h
+++ b/drivers/acpi/acpica/acopcode.h
@@ -92,7 +92,7 @@
 #define ARGP_BYTELIST_OP                ARGP_LIST1 (ARGP_NAMESTRING)
 #define ARGP_CONCAT_OP                  ARGP_LIST3 (ARGP_TERMARG,    ARGP_TERMARG,       ARGP_TARGET)
 #define ARGP_CONCAT_RES_OP              ARGP_LIST3 (ARGP_TERMARG,    ARGP_TERMARG,       ARGP_TARGET)
-#define ARGP_COND_REF_OF_OP             ARGP_LIST2 (ARGP_SUPERNAME,  ARGP_SUPERNAME)
+#define ARGP_COND_REF_OF_OP             ARGP_LIST2 (ARGP_NAME_OR_REF,ARGP_TARGET)
 #define ARGP_CONNECTFIELD_OP            ARGP_LIST1 (ARGP_NAMESTRING)
 #define ARGP_CONTINUE_OP                ARG_NONE
 #define ARGP_COPY_OP                    ARGP_LIST2 (ARGP_TERMARG,    ARGP_SIMPLENAME)
@@ -152,13 +152,14 @@
 #define ARGP_NAMEPATH_OP                ARGP_LIST1 (ARGP_NAMESTRING)
 #define ARGP_NOOP_OP                    ARG_NONE
 #define ARGP_NOTIFY_OP                  ARGP_LIST2 (ARGP_SUPERNAME,  ARGP_TERMARG)
+#define ARGP_OBJECT_TYPE_OP             ARGP_LIST1 (ARGP_NAME_OR_REF)
 #define ARGP_ONE_OP                     ARG_NONE
 #define ARGP_ONES_OP                    ARG_NONE
 #define ARGP_PACKAGE_OP                 ARGP_LIST3 (ARGP_PKGLENGTH,  ARGP_BYTEDATA,      ARGP_DATAOBJLIST)
 #define ARGP_POWER_RES_OP               ARGP_LIST5 (ARGP_PKGLENGTH,  ARGP_NAME,          ARGP_BYTEDATA,  ARGP_WORDDATA,  ARGP_OBJLIST)
 #define ARGP_PROCESSOR_OP               ARGP_LIST6 (ARGP_PKGLENGTH,  ARGP_NAME,          ARGP_BYTEDATA,  ARGP_DWORDDATA, ARGP_BYTEDATA,  ARGP_OBJLIST)
 #define ARGP_QWORD_OP                   ARGP_LIST1 (ARGP_QWORDDATA)
-#define ARGP_REF_OF_OP                  ARGP_LIST1 (ARGP_SUPERNAME)
+#define ARGP_REF_OF_OP                  ARGP_LIST1 (ARGP_NAME_OR_REF)
 #define ARGP_REGION_OP                  ARGP_LIST4 (ARGP_NAME,       ARGP_BYTEDATA,      ARGP_TERMARG,   ARGP_TERMARG)
 #define ARGP_RELEASE_OP                 ARGP_LIST1 (ARGP_SUPERNAME)
 #define ARGP_RESERVEDFIELD_OP           ARGP_LIST1 (ARGP_NAMESTRING)
@@ -185,7 +186,6 @@
 #define ARGP_TO_HEX_STR_OP              ARGP_LIST2 (ARGP_TERMARG,    ARGP_TARGET)
 #define ARGP_TO_INTEGER_OP              ARGP_LIST2 (ARGP_TERMARG,    ARGP_TARGET)
 #define ARGP_TO_STRING_OP               ARGP_LIST3 (ARGP_TERMARG,    ARGP_TERMARG,       ARGP_TARGET)
-#define ARGP_TYPE_OP                    ARGP_LIST1 (ARGP_SUPERNAME)
 #define ARGP_UNLOAD_OP                  ARGP_LIST1 (ARGP_SUPERNAME)
 #define ARGP_VAR_PACKAGE_OP             ARGP_LIST3 (ARGP_PKGLENGTH,  ARGP_TERMARG,       ARGP_DATAOBJLIST)
 #define ARGP_WAIT_OP                    ARGP_LIST2 (ARGP_SUPERNAME,  ARGP_TERMARG)
@@ -223,7 +223,7 @@
 #define ARGI_BUFFER_OP                  ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_BYTE_OP                    ARGI_INVALID_OPCODE
 #define ARGI_BYTELIST_OP                ARGI_INVALID_OPCODE
-#define ARGI_CONCAT_OP                  ARGI_LIST3 (ARGI_COMPUTEDATA,ARGI_COMPUTEDATA,   ARGI_TARGETREF)
+#define ARGI_CONCAT_OP                  ARGI_LIST3 (ARGI_ANYTYPE,    ARGI_ANYTYPE,       ARGI_TARGETREF)
 #define ARGI_CONCAT_RES_OP              ARGI_LIST3 (ARGI_BUFFER,     ARGI_BUFFER,        ARGI_TARGETREF)
 #define ARGI_COND_REF_OF_OP             ARGI_LIST2 (ARGI_OBJECT_REF, ARGI_TARGETREF)
 #define ARGI_CONNECTFIELD_OP            ARGI_INVALID_OPCODE
@@ -285,6 +285,7 @@
 #define ARGI_NAMEPATH_OP                ARGI_INVALID_OPCODE
 #define ARGI_NOOP_OP                    ARG_NONE
 #define ARGI_NOTIFY_OP                  ARGI_LIST2 (ARGI_DEVICE_REF, ARGI_INTEGER)
+#define ARGI_OBJECT_TYPE_OP             ARGI_LIST1 (ARGI_ANYTYPE)
 #define ARGI_ONE_OP                     ARG_NONE
 #define ARGI_ONES_OP                    ARG_NONE
 #define ARGI_PACKAGE_OP                 ARGI_LIST1 (ARGI_INTEGER)
@@ -318,7 +319,6 @@
 #define ARGI_TO_HEX_STR_OP              ARGI_LIST2 (ARGI_COMPUTEDATA,ARGI_FIXED_TARGET)
 #define ARGI_TO_INTEGER_OP              ARGI_LIST2 (ARGI_COMPUTEDATA,ARGI_FIXED_TARGET)
 #define ARGI_TO_STRING_OP               ARGI_LIST3 (ARGI_BUFFER,     ARGI_INTEGER,       ARGI_FIXED_TARGET)
-#define ARGI_TYPE_OP                    ARGI_LIST1 (ARGI_ANYTYPE)
 #define ARGI_UNLOAD_OP                  ARGI_LIST1 (ARGI_DDBHANDLE)
 #define ARGI_VAR_PACKAGE_OP             ARGI_LIST1 (ARGI_INTEGER)
 #define ARGI_WAIT_OP                    ARGI_LIST2 (ARGI_EVENT,      ARGI_INTEGER)
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 8fc8c7cea879..96d510a7feba 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -92,7 +92,13 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
 acpi_status
 acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
 			  struct acpi_parse_state *parser_state,
-			  union acpi_parse_object *arg, u8 method_call);
+			  union acpi_parse_object *arg,
+			  u8 possible_method_call);
+
+/* Values for u8 above */
+
+#define ACPI_NOT_METHOD_CALL            FALSE
+#define ACPI_POSSIBLE_METHOD_CALL       TRUE
 
 acpi_status
 acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 8b8fef6cc32d..9e84c05c0b91 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -184,24 +184,24 @@ acpi_status acpi_ut_init_globals(void);
 
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 
-char *acpi_ut_get_mutex_name(u32 mutex_id);
+const char *acpi_ut_get_mutex_name(u32 mutex_id);
 
 const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type);
 #endif
 
-char *acpi_ut_get_type_name(acpi_object_type type);
+const char *acpi_ut_get_type_name(acpi_object_type type);
 
-char *acpi_ut_get_node_name(void *object);
+const char *acpi_ut_get_node_name(void *object);
 
-char *acpi_ut_get_descriptor_name(void *object);
+const char *acpi_ut_get_descriptor_name(void *object);
 
 const char *acpi_ut_get_reference_name(union acpi_operand_object *object);
 
-char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc);
+const char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc);
 
-char *acpi_ut_get_region_name(u8 space_id);
+const char *acpi_ut_get_region_name(u8 space_id);
 
-char *acpi_ut_get_event_name(u32 event_id);
+const char *acpi_ut_get_event_name(u32 event_id);
 
 char acpi_ut_hex_to_ascii_char(u64 integer, u32 position);
 
@@ -353,14 +353,6 @@ acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
 			      u8 method_count, u8 *out_values);
 
 /*
- * utfileio - file operations
- */
-#ifdef ACPI_APPLICATION
-acpi_status
-acpi_ut_read_table_from_file(char *filename, struct acpi_table_header **table);
-#endif
-
-/*
  * utids - device ID support
  */
 acpi_status
@@ -372,10 +364,6 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
 		    struct acpi_pnp_device_id ** return_id);
 
 acpi_status
-acpi_ut_execute_SUB(struct acpi_namespace_node *device_node,
-		    struct acpi_pnp_device_id **return_id);
-
-acpi_status
 acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
 		    struct acpi_pnp_device_id_list ** return_cid_list);
 
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index 883f20cfa698..ab9f3f1fbb0f 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -120,7 +120,7 @@
 #define AML_CREATE_WORD_FIELD_OP    (u16) 0x8b
 #define AML_CREATE_BYTE_FIELD_OP    (u16) 0x8c
 #define AML_CREATE_BIT_FIELD_OP     (u16) 0x8d
-#define AML_TYPE_OP                 (u16) 0x8e
+#define AML_OBJECT_TYPE_OP          (u16) 0x8e
 #define AML_CREATE_QWORD_FIELD_OP   (u16) 0x8f	/* ACPI 2.0 */
 #define AML_LAND_OP                 (u16) 0x90
 #define AML_LOR_OP                  (u16) 0x91
@@ -238,7 +238,8 @@
 #define ARGP_TERMLIST               0x0F
 #define ARGP_WORDDATA               0x10
 #define ARGP_QWORDDATA              0x11
-#define ARGP_SIMPLENAME             0x12
+#define ARGP_SIMPLENAME             0x12	/* name_string | local_term | arg_term */
+#define ARGP_NAME_OR_REF            0x13	/* For object_type only */
 
 /*
  * Resolved argument types for the AML Interpreter
diff --git a/drivers/acpi/acpica/dbcmds.c b/drivers/acpi/acpica/dbcmds.c
index 30414b3d7fdd..328c35b323d5 100644
--- a/drivers/acpi/acpica/dbcmds.c
+++ b/drivers/acpi/acpica/dbcmds.c
@@ -798,7 +798,7 @@ acpi_db_device_resources(acpi_handle obj_handle,
 	acpi_status status;
 
 	node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
-	parent_path = acpi_ns_get_external_pathname(node);
+	parent_path = acpi_ns_get_normalized_pathname(node, TRUE);
 	if (!parent_path) {
 		return (AE_NO_MEMORY);
 	}
@@ -1131,13 +1131,8 @@ void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg)
 	u32 debug_layer = 0;
 	u32 flags = 0;
 
-	if (enable_arg) {
-		acpi_ut_strupr(enable_arg);
-	}
-
-	if (once_arg) {
-		acpi_ut_strupr(once_arg);
-	}
+	acpi_ut_strupr(enable_arg);
+	acpi_ut_strupr(once_arg);
 
 	if (method_arg) {
 		if (acpi_db_trace_method_name) {
diff --git a/drivers/acpi/acpica/dbdisply.c b/drivers/acpi/acpica/dbdisply.c
index 672977ec7c7d..1965b48d8e83 100644
--- a/drivers/acpi/acpica/dbdisply.c
+++ b/drivers/acpi/acpica/dbdisply.c
@@ -48,6 +48,7 @@
 #include "acnamesp.h"
 #include "acparser.h"
 #include "acinterp.h"
+#include "acevents.h"
 #include "acdebug.h"
 
 #define _COMPONENT          ACPI_CA_DEBUGGER
@@ -588,7 +589,7 @@ void acpi_db_display_calling_tree(void)
  *
  * FUNCTION:    acpi_db_display_object_type
  *
- * PARAMETERS:  name            - User entered NS node handle or name
+ * PARAMETERS:  object_arg      - User entered NS node handle
  *
  * RETURN:      None
  *
@@ -596,44 +597,34 @@ void acpi_db_display_calling_tree(void)
  *
  ******************************************************************************/
 
-void acpi_db_display_object_type(char *name)
+void acpi_db_display_object_type(char *object_arg)
 {
-	struct acpi_namespace_node *node;
+	acpi_handle handle;
 	struct acpi_device_info *info;
 	acpi_status status;
 	u32 i;
 
-	node = acpi_db_convert_to_node(name);
-	if (!node) {
-		return;
-	}
+	handle = ACPI_TO_POINTER(strtoul(object_arg, NULL, 16));
 
-	status = acpi_get_object_info(ACPI_CAST_PTR(acpi_handle, node), &info);
+	status = acpi_get_object_info(handle, &info);
 	if (ACPI_FAILURE(status)) {
 		acpi_os_printf("Could not get object info, %s\n",
 			       acpi_format_exception(status));
 		return;
 	}
 
-	if (info->valid & ACPI_VALID_ADR) {
-		acpi_os_printf("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
-			       ACPI_FORMAT_UINT64(info->address),
-			       info->current_status, info->flags);
-	}
-	if (info->valid & ACPI_VALID_SXDS) {
-		acpi_os_printf("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
-			       info->highest_dstates[0],
-			       info->highest_dstates[1],
-			       info->highest_dstates[2],
-			       info->highest_dstates[3]);
-	}
-	if (info->valid & ACPI_VALID_SXWS) {
-		acpi_os_printf
-		    ("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
-		     info->lowest_dstates[0], info->lowest_dstates[1],
-		     info->lowest_dstates[2], info->lowest_dstates[3],
-		     info->lowest_dstates[4]);
-	}
+	acpi_os_printf("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
+		       ACPI_FORMAT_UINT64(info->address),
+		       info->current_status, info->flags);
+
+	acpi_os_printf("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
+		       info->highest_dstates[0], info->highest_dstates[1],
+		       info->highest_dstates[2], info->highest_dstates[3]);
+
+	acpi_os_printf("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
+		       info->lowest_dstates[0], info->lowest_dstates[1],
+		       info->lowest_dstates[2], info->lowest_dstates[3],
+		       info->lowest_dstates[4]);
 
 	if (info->valid & ACPI_VALID_HID) {
 		acpi_os_printf("HID: %s\n", info->hardware_id.string);
@@ -643,10 +634,6 @@ void acpi_db_display_object_type(char *name)
 		acpi_os_printf("UID: %s\n", info->unique_id.string);
 	}
 
-	if (info->valid & ACPI_VALID_SUB) {
-		acpi_os_printf("SUB: %s\n", info->subsystem_id.string);
-	}
-
 	if (info->valid & ACPI_VALID_CID) {
 		for (i = 0; i < info->compatible_id_list.count; i++) {
 			acpi_os_printf("CID %u: %s\n", i,
@@ -679,6 +666,12 @@ acpi_db_display_result_object(union acpi_operand_object *obj_desc,
 			      struct acpi_walk_state *walk_state)
 {
 
+#ifndef ACPI_APPLICATION
+	if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
+		return;
+	}
+#endif
+
 	/* Only display if single stepping */
 
 	if (!acpi_gbl_cm_single_step) {
@@ -708,6 +701,12 @@ acpi_db_display_argument_object(union acpi_operand_object *obj_desc,
 				struct acpi_walk_state *walk_state)
 {
 
+#ifndef ACPI_APPLICATION
+	if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
+		return;
+	}
+#endif
+
 	if (!acpi_gbl_cm_single_step) {
 		return;
 	}
@@ -951,28 +950,25 @@ void acpi_db_display_handlers(void)
 	if (obj_desc) {
 		for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_gbl_space_id_list); i++) {
 			space_id = acpi_gbl_space_id_list[i];
-			handler_obj = obj_desc->device.handler;
 
 			acpi_os_printf(ACPI_PREDEFINED_PREFIX,
 				       acpi_ut_get_region_name((u8)space_id),
 				       space_id);
 
-			while (handler_obj) {
-				if (acpi_gbl_space_id_list[i] ==
-				    handler_obj->address_space.space_id) {
-					acpi_os_printf
-					    (ACPI_HANDLER_PRESENT_STRING,
-					     (handler_obj->address_space.
-					      handler_flags &
-					      ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
-					     ? "Default" : "User",
-					     handler_obj->address_space.
-					     handler);
-
-					goto found_handler;
-				}
+			handler_obj =
+			    acpi_ev_find_region_handler(space_id,
+							obj_desc->common_notify.
+							handler);
+			if (handler_obj) {
+				acpi_os_printf(ACPI_HANDLER_PRESENT_STRING,
+					       (handler_obj->address_space.
+						handler_flags &
+						ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
+					       ? "Default" : "User",
+					       handler_obj->address_space.
+					       handler);
 
-				handler_obj = handler_obj->address_space.next;
+				goto found_handler;
 			}
 
 			/* There is no handler for this space_id */
@@ -984,7 +980,7 @@ found_handler:		;
 
 		/* Find all handlers for user-defined space_IDs */
 
-		handler_obj = obj_desc->device.handler;
+		handler_obj = obj_desc->common_notify.handler;
 		while (handler_obj) {
 			if (handler_obj->address_space.space_id >=
 			    ACPI_USER_REGION_BEGIN) {
@@ -1079,14 +1075,14 @@ acpi_db_display_non_root_handlers(acpi_handle obj_handle,
 		return (AE_OK);
 	}
 
-	pathname = acpi_ns_get_external_pathname(node);
+	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
 	if (!pathname) {
 		return (AE_OK);
 	}
 
 	/* Display all handlers associated with this device */
 
-	handler_obj = obj_desc->device.handler;
+	handler_obj = obj_desc->common_notify.handler;
 	while (handler_obj) {
 		acpi_os_printf(ACPI_PREDEFINED_PREFIX,
 			       acpi_ut_get_region_name((u8)handler_obj->
diff --git a/drivers/acpi/acpica/dbfileio.c b/drivers/acpi/acpica/dbfileio.c
index d0e6b20ce82a..31f54d71c51a 100644
--- a/drivers/acpi/acpica/dbfileio.c
+++ b/drivers/acpi/acpica/dbfileio.c
@@ -46,6 +46,10 @@
 #include "accommon.h"
 #include "acdebug.h"
 #include "actables.h"
+#include <stdio.h>
+#ifdef ACPI_APPLICATION
+#include "acapps.h"
+#endif
 
 #define _COMPONENT          ACPI_CA_DEBUGGER
 ACPI_MODULE_NAME("dbfileio")
@@ -110,122 +114,31 @@ void acpi_db_open_debug_file(char *name)
 }
 #endif
 
-#ifdef ACPI_APPLICATION
-#include "acapps.h"
-
-/*******************************************************************************
- *
- * FUNCTION:    ae_local_load_table
- *
- * PARAMETERS:  table           - pointer to a buffer containing the entire
- *                                table to be loaded
- *
- * RETURN:      Status
- *
- * DESCRIPTION: This function is called to load a table from the caller's
- *              buffer. The buffer must contain an entire ACPI Table including
- *              a valid header. The header fields will be verified, and if it
- *              is determined that the table is invalid, the call will fail.
- *
- ******************************************************************************/
-
-static acpi_status ae_local_load_table(struct acpi_table_header *table)
-{
-	acpi_status status = AE_OK;
-
-	ACPI_FUNCTION_TRACE(ae_local_load_table);
-
-#if 0
-/*    struct acpi_table_desc          table_info; */
-
-	if (!table) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	table_info.pointer = table;
-	status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Install the new table into the local data structures */
-
-	status = acpi_tb_init_table_descriptor(&table_info);
-	if (ACPI_FAILURE(status)) {
-		if (status == AE_ALREADY_EXISTS) {
-
-			/* Table already exists, no error */
-
-			status = AE_OK;
-		}
-
-		/* Free table allocated by acpi_tb_get_table */
-
-		acpi_tb_delete_single_table(&table_info);
-		return_ACPI_STATUS(status);
-	}
-#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
-
-	status =
-	    acpi_ns_load_table(table_info.installed_desc, acpi_gbl_root_node);
-	if (ACPI_FAILURE(status)) {
-
-		/* Uninstall table and free the buffer */
-
-		acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_DSDT);
-		return_ACPI_STATUS(status);
-	}
-#endif
-#endif
-
-	return_ACPI_STATUS(status);
-}
-#endif
-
 /*******************************************************************************
  *
- * FUNCTION:    acpi_db_get_table_from_file
+ * FUNCTION:    acpi_db_load_tables
  *
- * PARAMETERS:  filename        - File where table is located
- *              return_table    - Where a pointer to the table is returned
+ * PARAMETERS:  list_head       - List of ACPI tables to load
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Load an ACPI table from a file
+ * DESCRIPTION: Load ACPI tables from a previously constructed table list.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_db_get_table_from_file(char *filename,
-			    struct acpi_table_header **return_table,
-			    u8 must_be_aml_file)
+acpi_status acpi_db_load_tables(struct acpi_new_table_desc *list_head)
 {
-#ifdef ACPI_APPLICATION
 	acpi_status status;
+	struct acpi_new_table_desc *table_list_head;
 	struct acpi_table_header *table;
-	u8 is_aml_table = TRUE;
-
-	status = acpi_ut_read_table_from_file(filename, &table);
-	if (ACPI_FAILURE(status)) {
-		return (status);
-	}
-
-	if (must_be_aml_file) {
-		is_aml_table = acpi_ut_is_aml_table(table);
-		if (!is_aml_table) {
-			ACPI_EXCEPTION((AE_INFO, AE_OK,
-					"Input for -e is not an AML table: "
-					"\"%4.4s\" (must be DSDT/SSDT)",
-					table->signature));
-			return (AE_TYPE);
-		}
-	}
 
-	if (is_aml_table) {
+	/* Load all ACPI tables in the list */
 
-		/* Attempt to recognize and install the table */
+	table_list_head = list_head;
+	while (table_list_head) {
+		table = table_list_head->table;
 
-		status = ae_local_load_table(table);
+		status = acpi_load_table(table);
 		if (ACPI_FAILURE(status)) {
 			if (status == AE_ALREADY_EXISTS) {
 				acpi_os_printf
@@ -239,18 +152,12 @@ acpi_db_get_table_from_file(char *filename,
 			return (status);
 		}
 
-		acpi_tb_print_table_header(0, table);
-
 		fprintf(stderr,
 			"Acpi table [%4.4s] successfully installed and loaded\n",
 			table->signature);
-	}
 
-	acpi_gbl_acpi_hardware_present = FALSE;
-	if (return_table) {
-		*return_table = table;
+		table_list_head = table_list_head->next;
 	}
 
-#endif				/* ACPI_APPLICATION */
 	return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
index 0480254437f1..6203001baa30 100644
--- a/drivers/acpi/acpica/dbinput.c
+++ b/drivers/acpi/acpica/dbinput.c
@@ -45,6 +45,10 @@
 #include "accommon.h"
 #include "acdebug.h"
 
+#ifdef ACPI_APPLICATION
+#include "acapps.h"
+#endif
+
 #define _COMPONENT          ACPI_CA_DEBUGGER
 ACPI_MODULE_NAME("dbinput")
 
@@ -53,8 +57,6 @@ static u32 acpi_db_get_line(char *input_buffer);
 
 static u32 acpi_db_match_command(char *user_command);
 
-static void acpi_db_single_thread(void);
-
 static void acpi_db_display_command_info(char *command, u8 display_all);
 
 static void acpi_db_display_help(char *command);
@@ -623,9 +625,7 @@ static u32 acpi_db_get_line(char *input_buffer)
 
 	/* Uppercase the actual command */
 
-	if (acpi_gbl_db_args[0]) {
-		acpi_ut_strupr(acpi_gbl_db_args[0]);
-	}
+	acpi_ut_strupr(acpi_gbl_db_args[0]);
 
 	count = i;
 	if (count) {
@@ -1050,11 +1050,17 @@ acpi_db_command_dispatch(char *input_buffer,
 		acpi_db_close_debug_file();
 		break;
 
-	case CMD_LOAD:
+	case CMD_LOAD:{
+			struct acpi_new_table_desc *list_head = NULL;
 
-		status =
-		    acpi_db_get_table_from_file(acpi_gbl_db_args[1], NULL,
-						FALSE);
+			status =
+			    ac_get_all_tables_from_file(acpi_gbl_db_args[1],
+							ACPI_GET_ALL_TABLES,
+							&list_head);
+			if (ACPI_SUCCESS(status)) {
+				acpi_db_load_tables(list_head);
+			}
+		}
 		break;
 
 	case CMD_OPEN:
@@ -1149,55 +1155,16 @@ acpi_db_command_dispatch(char *input_buffer,
 
 void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context)
 {
-	acpi_status status = AE_OK;
-	acpi_status Mstatus;
-
-	while (status != AE_CTRL_TERMINATE && !acpi_gbl_db_terminate_loop) {
-		acpi_gbl_method_executing = FALSE;
-		acpi_gbl_step_to_next_call = FALSE;
-
-		Mstatus = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
-						ACPI_WAIT_FOREVER);
-		if (ACPI_FAILURE(Mstatus)) {
-			return;
-		}
-
-		status =
-		    acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
 
-		acpi_os_release_mutex(acpi_gbl_db_command_complete);
-	}
+	(void)acpi_db_user_commands();
 	acpi_gbl_db_threads_terminated = TRUE;
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_db_single_thread
- *
- * PARAMETERS:  None
- *
- * RETURN:      None
- *
- * DESCRIPTION: Debugger execute thread. Waits for a command line, then
- *              simply dispatches it.
- *
- ******************************************************************************/
-
-static void acpi_db_single_thread(void)
-{
-
-	acpi_gbl_method_executing = FALSE;
-	acpi_gbl_step_to_next_call = FALSE;
-
-	(void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_db_user_commands
  *
- * PARAMETERS:  prompt              - User prompt (depends on mode)
- *              op                  - Current executing parse op
+ * PARAMETERS:  None
  *
  * RETURN:      None
  *
@@ -1206,7 +1173,7 @@ static void acpi_db_single_thread(void)
  *
  ******************************************************************************/
 
-acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op)
+acpi_status acpi_db_user_commands(void)
 {
 	acpi_status status = AE_OK;
 
@@ -1216,52 +1183,31 @@ acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op)
 
 	while (!acpi_gbl_db_terminate_loop) {
 
-		/* Force output to console until a command is entered */
-
-		acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
-
-		/* Different prompt if method is executing */
-
-		if (!acpi_gbl_method_executing) {
-			acpi_os_printf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
-		} else {
-			acpi_os_printf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
-		}
+		/* Wait the readiness of the command */
 
-		/* Get the user input line */
-
-		status = acpi_os_get_line(acpi_gbl_db_line_buf,
-					  ACPI_DB_LINE_BUFFER_SIZE, NULL);
+		status = acpi_os_wait_command_ready();
 		if (ACPI_FAILURE(status)) {
-			ACPI_EXCEPTION((AE_INFO, status,
-					"While parsing command line"));
-			return (status);
+			break;
 		}
 
-		/* Check for single or multithreaded debug */
+		/* Just call to the command line interpreter */
 
-		if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
-			/*
-			 * Signal the debug thread that we have a command to execute,
-			 * and wait for the command to complete.
-			 */
-			acpi_os_release_mutex(acpi_gbl_db_command_ready);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
+		acpi_gbl_method_executing = FALSE;
+		acpi_gbl_step_to_next_call = FALSE;
 
-			status =
-			    acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
-						  ACPI_WAIT_FOREVER);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-		} else {
-			/* Just call to the command line interpreter */
+		(void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL,
+					       NULL);
+
+		/* Notify the completion of the command */
 
-			acpi_db_single_thread();
+		status = acpi_os_notify_command_complete();
+		if (ACPI_FAILURE(status)) {
+			break;
 		}
 	}
 
+	if (ACPI_FAILURE(status) && status != AE_CTRL_TERMINATE) {
+		ACPI_EXCEPTION((AE_INFO, status, "While parsing command line"));
+	}
 	return (status);
 }
diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c
index 04ff1ebfda58..4f68dfc6ea55 100644
--- a/drivers/acpi/acpica/dbnames.c
+++ b/drivers/acpi/acpica/dbnames.c
@@ -438,7 +438,7 @@ acpi_db_walk_for_predefined_names(acpi_handle obj_handle,
 		return (AE_OK);
 	}
 
-	pathname = acpi_ns_get_external_pathname(node);
+	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
 	if (!pathname) {
 		return (AE_OK);
 	}
diff --git a/drivers/acpi/acpica/dbstats.c b/drivers/acpi/acpica/dbstats.c
index 4ba0a20811eb..de255d975941 100644
--- a/drivers/acpi/acpica/dbstats.c
+++ b/drivers/acpi/acpica/dbstats.c
@@ -382,6 +382,7 @@ acpi_status acpi_db_display_statistics(char *type_arg)
 				       acpi_gbl_node_type_count[i],
 				       acpi_gbl_obj_type_count[i]);
 		}
+
 		acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
 			       acpi_gbl_node_type_count_misc,
 			       acpi_gbl_obj_type_count_misc);
diff --git a/drivers/acpi/acpica/dbtest.c b/drivers/acpi/acpica/dbtest.c
index 10ea8bf9b810..68b4e8d9e1d6 100644
--- a/drivers/acpi/acpica/dbtest.c
+++ b/drivers/acpi/acpica/dbtest.c
@@ -953,7 +953,7 @@ acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
 		return (AE_OK);
 	}
 
-	pathname = acpi_ns_get_external_pathname(node);
+	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
 	if (!pathname) {
 		return (AE_OK);
 	}
diff --git a/drivers/acpi/acpica/dbutils.c b/drivers/acpi/acpica/dbutils.c
index 86790e080139..8c85d85a9cb2 100644
--- a/drivers/acpi/acpica/dbutils.c
+++ b/drivers/acpi/acpica/dbutils.c
@@ -173,6 +173,7 @@ void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level)
 			if (obj_desc->buffer.length > 16) {
 				acpi_os_printf("\n");
 			}
+
 			acpi_ut_debug_dump_buffer(ACPI_CAST_PTR
 						  (u8,
 						   obj_desc->buffer.pointer),
diff --git a/drivers/acpi/acpica/dbxface.c b/drivers/acpi/acpica/dbxface.c
index 342298a6e10f..d7ff58e8c233 100644
--- a/drivers/acpi/acpica/dbxface.c
+++ b/drivers/acpi/acpica/dbxface.c
@@ -85,46 +85,21 @@ acpi_db_start_command(struct acpi_walk_state *walk_state,
 
 	acpi_gbl_method_executing = TRUE;
 	status = AE_CTRL_TRUE;
-	while (status == AE_CTRL_TRUE) {
-		if (acpi_gbl_debugger_configuration == DEBUGGER_MULTI_THREADED) {
-
-			/* Handshake with the front-end that gets user command lines */
-
-			acpi_os_release_mutex(acpi_gbl_db_command_complete);
-
-			status =
-			    acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
-						  ACPI_WAIT_FOREVER);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-		} else {
-			/* Single threaded, we must get a command line ourselves */
-
-			/* Force output to console until a command is entered */
 
-			acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+	while (status == AE_CTRL_TRUE) {
 
-			/* Different prompt if method is executing */
+		/* Notify the completion of the command */
 
-			if (!acpi_gbl_method_executing) {
-				acpi_os_printf("%1c ",
-					       ACPI_DEBUGGER_COMMAND_PROMPT);
-			} else {
-				acpi_os_printf("%1c ",
-					       ACPI_DEBUGGER_EXECUTE_PROMPT);
-			}
+		status = acpi_os_notify_command_complete();
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
+		}
 
-			/* Get the user input line */
+		/* Wait the readiness of the command */
 
-			status = acpi_os_get_line(acpi_gbl_db_line_buf,
-						  ACPI_DB_LINE_BUFFER_SIZE,
-						  NULL);
-			if (ACPI_FAILURE(status)) {
-				ACPI_EXCEPTION((AE_INFO, status,
-						"While parsing command line"));
-				return (status);
-			}
+		status = acpi_os_wait_command_ready();
+		if (ACPI_FAILURE(status)) {
+			goto error_exit;
 		}
 
 		status =
@@ -134,11 +109,46 @@ acpi_db_start_command(struct acpi_walk_state *walk_state,
 
 	/* acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); */
 
+error_exit:
+	if (ACPI_FAILURE(status) && status != AE_CTRL_TERMINATE) {
+		ACPI_EXCEPTION((AE_INFO, status,
+				"While parsing/handling command line"));
+	}
 	return (status);
 }
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_db_signal_break_point
+ *
+ * PARAMETERS:  walk_state      - Current walk
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Called for AML_BREAK_POINT_OP
+ *
+ ******************************************************************************/
+
+void acpi_db_signal_break_point(struct acpi_walk_state *walk_state)
+{
+
+#ifndef ACPI_APPLICATION
+	if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
+		return;
+	}
+#endif
+
+	/*
+	 * Set the single-step flag. This will cause the debugger (if present)
+	 * to break to the console within the AML debugger at the start of the
+	 * next AML instruction.
+	 */
+	acpi_gbl_cm_single_step = TRUE;
+	acpi_os_printf("**break** Executed AML BreakPoint opcode\n");
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_db_single_step
  *
  * PARAMETERS:  walk_state      - Current walk
@@ -420,15 +430,7 @@ acpi_status acpi_initialize_debugger(void)
 
 		/* These were created with one unit, grab it */
 
-		status = acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
-					       ACPI_WAIT_FOREVER);
-		if (ACPI_FAILURE(status)) {
-			acpi_os_printf("Could not get debugger mutex\n");
-			return_ACPI_STATUS(status);
-		}
-
-		status = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
-					       ACPI_WAIT_FOREVER);
+		status = acpi_os_initialize_command_signals();
 		if (ACPI_FAILURE(status)) {
 			acpi_os_printf("Could not get debugger mutex\n");
 			return_ACPI_STATUS(status);
@@ -473,13 +475,14 @@ void acpi_terminate_debugger(void)
 	acpi_gbl_db_terminate_loop = TRUE;
 
 	if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
-		acpi_os_release_mutex(acpi_gbl_db_command_ready);
 
 		/* Wait the AML Debugger threads */
 
 		while (!acpi_gbl_db_threads_terminated) {
 			acpi_os_sleep(100);
 		}
+
+		acpi_os_terminate_command_signals();
 	}
 
 	if (acpi_gbl_db_buffer) {
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index e2ab59e39162..76cfced31f9f 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -194,8 +194,8 @@ acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
 	extra_desc = acpi_ns_get_secondary_object(obj_desc);
 	node = obj_desc->buffer_field.node;
 
-	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_BUFFER_FIELD,
-						      node, NULL));
+	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+			(ACPI_TYPE_BUFFER_FIELD, node, NULL));
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
 			  acpi_ut_get_node_name(node)));
@@ -385,7 +385,8 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
 	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
 			(ACPI_TYPE_REGION, node, NULL));
 
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "[%4.4s] OpRegion Arg Init at AML %p\n",
 			  acpi_ut_get_node_name(node),
 			  extra_desc->extra.aml_start));
 
diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c
index 435fc16e2f83..06a6f7f3af52 100644
--- a/drivers/acpi/acpica/dscontrol.c
+++ b/drivers/acpi/acpica/dscontrol.c
@@ -47,6 +47,7 @@
 #include "amlcode.h"
 #include "acdispat.h"
 #include "acinterp.h"
+#include "acdebug.h"
 
 #define _COMPONENT          ACPI_DISPATCHER
 ACPI_MODULE_NAME("dscontrol")
@@ -348,14 +349,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
 
 	case AML_BREAK_POINT_OP:
 
-		/*
-		 * Set the single-step flag. This will cause the debugger (if present)
-		 * to break to the console within the AML debugger at the start of the
-		 * next AML instruction.
-		 */
-		ACPI_DEBUGGER_EXEC(acpi_gbl_cm_single_step = TRUE);
-		ACPI_DEBUGGER_EXEC(acpi_os_printf
-				   ("**break** Executed AML BreakPoint opcode\n"));
+		acpi_db_signal_break_point(walk_state);
 
 		/* Call to the OSL in case OS wants a piece of the action */
 
diff --git a/drivers/acpi/acpica/dsdebug.c b/drivers/acpi/acpica/dsdebug.c
index 309556efc553..1eb82bd7ee16 100644
--- a/drivers/acpi/acpica/dsdebug.c
+++ b/drivers/acpi/acpica/dsdebug.c
@@ -161,6 +161,7 @@ acpi_ds_dump_method_stack(acpi_status status,
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 			  "\n**** Exception %s during execution of method ",
 			  acpi_format_exception(status)));
+
 	acpi_ds_print_node_pathname(walk_state->method_node, NULL);
 
 	/* Display stack of executing methods */
@@ -203,8 +204,8 @@ acpi_ds_dump_method_stack(acpi_status status,
 		} else {
 			/*
 			 * This method has called another method
-			 * NOTE: the method call parse subtree is already deleted at this
-			 * point, so we cannot disassemble the method invocation.
+			 * NOTE: the method call parse subtree is already deleted at
+			 * this point, so we cannot disassemble the method invocation.
 			 */
 			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DISPATCH,
 					      "Call to method "));
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index 20de148594fd..6bca0ec42dbd 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -106,6 +106,7 @@ acpi_ds_create_external_region(acpi_status lookup_status,
 	 * insert the name into the namespace.
 	 */
 	acpi_dm_add_op_to_external_list(op, path, ACPI_TYPE_REGION, 0, 0);
+
 	status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION,
 				ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT,
 				walk_state, node);
@@ -202,11 +203,10 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
 
 		/* Enter the name_string into the namespace */
 
-		status =
-		    acpi_ns_lookup(walk_state->scope_info,
-				   arg->common.value.string, ACPI_TYPE_ANY,
-				   ACPI_IMODE_LOAD_PASS1, flags, walk_state,
-				   &node);
+		status = acpi_ns_lookup(walk_state->scope_info,
+					arg->common.value.string, ACPI_TYPE_ANY,
+					ACPI_IMODE_LOAD_PASS1, flags,
+					walk_state, &node);
 		if (ACPI_FAILURE(status)) {
 			ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
 			return_ACPI_STATUS(status);
@@ -244,8 +244,8 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
 	}
 
 	/*
-	 * Remember location in AML stream of the field unit opcode and operands --
-	 * since the buffer and index operands must be evaluated.
+	 * Remember location in AML stream of the field unit opcode and operands
+	 * -- since the buffer and index operands must be evaluated.
 	 */
 	second_desc = obj_desc->common.next_object;
 	second_desc->extra.aml_start = op->named.data;
@@ -310,8 +310,8 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
 		switch (arg->common.aml_opcode) {
 		case AML_INT_RESERVEDFIELD_OP:
 
-			position = (u64) info->field_bit_position
-			    + (u64) arg->common.value.size;
+			position = (u64)info->field_bit_position +
+			    (u64)arg->common.value.size;
 
 			if (position > ACPI_UINT32_MAX) {
 				ACPI_ERROR((AE_INFO,
@@ -344,13 +344,13 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
 
 			/* access_attribute (attrib_quick, attrib_byte, etc.) */
 
-			info->attribute =
-			    (u8)((arg->common.value.integer >> 8) & 0xFF);
+			info->attribute = (u8)
+			    ((arg->common.value.integer >> 8) & 0xFF);
 
 			/* access_length (for serial/buffer protocols) */
 
-			info->access_length =
-			    (u8)((arg->common.value.integer >> 16) & 0xFF);
+			info->access_length = (u8)
+			    ((arg->common.value.integer >> 16) & 0xFF);
 			break;
 
 		case AML_INT_CONNECTION_OP:
@@ -425,8 +425,8 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
 
 			/* Keep track of bit position for the next field */
 
-			position = (u64) info->field_bit_position
-			    + (u64) arg->common.value.size;
+			position = (u64)info->field_bit_position +
+			    (u64)arg->common.value.size;
 
 			if (position > ACPI_UINT32_MAX) {
 				ACPI_ERROR((AE_INFO,
@@ -716,11 +716,12 @@ acpi_ds_create_bank_field(union acpi_parse_object *op,
 
 	/*
 	 * Use Info.data_register_node to store bank_field Op
-	 * It's safe because data_register_node will never be used when create bank field
-	 * We store aml_start and aml_length in the bank_field Op for late evaluation
-	 * Used in acpi_ex_prep_field_value(Info)
+	 * It's safe because data_register_node will never be used when create
+	 * bank field \we store aml_start and aml_length in the bank_field Op for
+	 * late evaluation. Used in acpi_ex_prep_field_value(Info)
 	 *
-	 * TBD: Or, should we add a field in struct acpi_create_field_info, like "void *ParentOp"?
+	 * TBD: Or, should we add a field in struct acpi_create_field_info, like
+	 * "void *ParentOp"?
 	 */
 	info.data_register_node = (struct acpi_namespace_node *)op;
 
diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index 920f1b199bc6..c1d8af8a8aaf 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -247,7 +247,7 @@ acpi_ds_initialize_objects(u32 table_index,
 	/* Summary of objects initialized */
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "Table [%4.4s:%8.8s] (id %.2X) - %4u Objects with %3u Devices, "
+			      "Table [%4.4s: %-8.8s] (id %.2X) - %4u Objects with %3u Devices, "
 			      "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n",
 			      table->signature, table->oem_table_id, owner_id,
 			      info.object_count, info.device_count,
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index bc32f3194afe..6585e8e37c8e 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -118,10 +118,9 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node,
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	status =
-	    acpi_ds_init_aml_walk(walk_state, op, node,
-				  obj_desc->method.aml_start,
-				  obj_desc->method.aml_length, NULL, 0);
+	status = acpi_ds_init_aml_walk(walk_state, op, node,
+				       obj_desc->method.aml_start,
+				       obj_desc->method.aml_length, NULL, 0);
 	if (ACPI_FAILURE(status)) {
 		acpi_ds_delete_walk_state(walk_state);
 		acpi_ps_free_op(op);
@@ -375,7 +374,8 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 		    && (walk_state->thread->current_sync_level >
 			obj_desc->method.mutex->mutex.sync_level)) {
 			ACPI_ERROR((AE_INFO,
-				    "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%u)",
+				    "Cannot acquire Mutex for method [%4.4s]"
+				    ", current SyncLevel is too large (%u)",
 				    acpi_ut_get_node_name(method_node),
 				    walk_state->thread->current_sync_level));
 
@@ -411,8 +411,19 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 
 				obj_desc->method.mutex->mutex.thread_id =
 				    walk_state->thread->thread_id;
-				walk_state->thread->current_sync_level =
-				    obj_desc->method.sync_level;
+
+				/*
+				 * Update the current sync_level only if this is not an auto-
+				 * serialized method. In the auto case, we have to ignore
+				 * the sync level for the method mutex (created for the
+				 * auto-serialization) because we have no idea of what the
+				 * sync level should be. Therefore, just ignore it.
+				 */
+				if (!(obj_desc->method.info_flags &
+				      ACPI_METHOD_IGNORE_SYNC_LEVEL)) {
+					walk_state->thread->current_sync_level =
+					    obj_desc->method.sync_level;
+				}
 			} else {
 				obj_desc->method.mutex->mutex.
 				    original_sync_level =
@@ -501,16 +512,18 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 
 	/* Init for new method, possibly wait on method mutex */
 
-	status = acpi_ds_begin_method_execution(method_node, obj_desc,
-						this_walk_state);
+	status =
+	    acpi_ds_begin_method_execution(method_node, obj_desc,
+					   this_walk_state);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
 
 	/* Begin method parse/execution. Create a new walk state */
 
-	next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id,
-						    NULL, obj_desc, thread);
+	next_walk_state =
+	    acpi_ds_create_walk_state(obj_desc->method.owner_id, NULL, obj_desc,
+				      thread);
 	if (!next_walk_state) {
 		status = AE_NO_MEMORY;
 		goto cleanup;
@@ -797,7 +810,8 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
 		    info_flags & ACPI_METHOD_SERIALIZED_PENDING) {
 			if (walk_state) {
 				ACPI_INFO((AE_INFO,
-					   "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error",
+					   "Marking method %4.4s as Serialized "
+					   "because of AE_ALREADY_EXISTS error",
 					   walk_state->method_node->name.
 					   ascii));
 			}
@@ -815,6 +829,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
 			 */
 			method_desc->method.info_flags &=
 			    ~ACPI_METHOD_SERIALIZED_PENDING;
+
 			method_desc->method.info_flags |=
 			    (ACPI_METHOD_SERIALIZED |
 			     ACPI_METHOD_IGNORE_SYNC_LEVEL);
diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c
index 2e4c42b377ec..03c44f2ac7b7 100644
--- a/drivers/acpi/acpica/dsmthdat.c
+++ b/drivers/acpi/acpica/dsmthdat.c
@@ -99,6 +99,7 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
 	for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
 		ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name,
 				   NAMEOF_ARG_NTE);
+
 		walk_state->arguments[i].name.integer |= (i << 24);
 		walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED;
 		walk_state->arguments[i].type = ACPI_TYPE_ANY;
@@ -201,7 +202,7 @@ acpi_ds_method_data_init_args(union acpi_operand_object **params,
 
 	if (!params) {
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "No param list passed to method\n"));
+				  "No parameter list passed to method\n"));
 		return_ACPI_STATUS(AE_OK);
 	}
 
@@ -214,9 +215,9 @@ acpi_ds_method_data_init_args(union acpi_operand_object **params,
 		 * Store the argument in the method/walk descriptor.
 		 * Do not copy the arg in order to implement call by reference
 		 */
-		status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
-						       params[index],
-						       walk_state);
+		status =
+		    acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
+						  params[index], walk_state);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
@@ -610,11 +611,11 @@ acpi_ds_store_object_to_local(u8 type,
 			 * do the indirect store
 			 */
 			if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) ==
-			     ACPI_DESC_TYPE_OPERAND)
-			    && (current_obj_desc->common.type ==
-				ACPI_TYPE_LOCAL_REFERENCE)
-			    && (current_obj_desc->reference.class ==
-				ACPI_REFCLASS_REFOF)) {
+			     ACPI_DESC_TYPE_OPERAND) &&
+			    (current_obj_desc->common.type ==
+			     ACPI_TYPE_LOCAL_REFERENCE) &&
+			    (current_obj_desc->reference.class ==
+			     ACPI_REFCLASS_REFOF)) {
 				ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 						  "Arg (%p) is an ObjRef(Node), storing in node %p\n",
 						  new_obj_desc,
@@ -638,6 +639,7 @@ acpi_ds_store_object_to_local(u8 type,
 				if (new_obj_desc != obj_desc) {
 					acpi_ut_remove_reference(new_obj_desc);
 				}
+
 				return_ACPI_STATUS(status);
 			}
 		}
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 2beb7fd674ae..302c91f5377b 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -463,10 +463,10 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 						  arg->common.node);
 			}
 		} else {
-			status = acpi_ds_build_internal_object(walk_state, arg,
-							       &obj_desc->
-							       package.
-							       elements[i]);
+			status =
+			    acpi_ds_build_internal_object(walk_state, arg,
+							  &obj_desc->package.
+							  elements[i]);
 		}
 
 		if (*obj_desc_ptr) {
@@ -525,7 +525,8 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 		}
 
 		ACPI_INFO((AE_INFO,
-			   "Actual Package length (%u) is larger than NumElements field (%u), truncated",
+			   "Actual Package length (%u) is larger than "
+			   "NumElements field (%u), truncated",
 			   i, element_count));
 	} else if (i < element_count) {
 		/*
@@ -533,7 +534,8 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 		 * Note: this is not an error, the package is padded out with NULLs.
 		 */
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Package List length (%u) smaller than NumElements count (%u), padded with null elements\n",
+				  "Package List length (%u) smaller than NumElements "
+				  "count (%u), padded with null elements\n",
 				  i, element_count));
 	}
 
@@ -584,8 +586,9 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state,
 
 	/* Build an internal object for the argument(s) */
 
-	status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
-					       &obj_desc);
+	status =
+	    acpi_ds_build_internal_object(walk_state, op->common.value.arg,
+					  &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 81d7b9863e32..1edd66f18907 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -243,8 +243,9 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
 	 * For field_flags, use LOCK_RULE = 0 (NO_LOCK),
 	 * UPDATE_RULE = 0 (UPDATE_PRESERVE)
 	 */
-	status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0,
-						  bit_offset, bit_count);
+	status =
+	    acpi_ex_prep_common_field_object(obj_desc, field_flags, 0,
+					     bit_offset, bit_count);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
 	}
@@ -330,8 +331,9 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
 
 	/* Resolve the operands */
 
-	status = acpi_ex_resolve_operands(op->common.aml_opcode,
-					  ACPI_WALK_OPERANDS, walk_state);
+	status =
+	    acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS,
+				     walk_state);
 	if (ACPI_FAILURE(status)) {
 		ACPI_ERROR((AE_INFO, "(%s) bad operand(s), status 0x%X",
 			    acpi_ps_get_opcode_name(op->common.aml_opcode),
@@ -414,8 +416,9 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
 
 	/* Resolve the length and address operands to numbers */
 
-	status = acpi_ex_resolve_operands(op->common.aml_opcode,
-					  ACPI_WALK_OPERANDS, walk_state);
+	status =
+	    acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS,
+				     walk_state);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -452,7 +455,6 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
 	/* Now the address and length are valid for this opregion */
 
 	obj_desc->region.flags |= AOPOBJ_DATA_VALID;
-
 	return_ACPI_STATUS(status);
 }
 
@@ -510,8 +512,9 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
 	 * Resolve the Signature string, oem_id string,
 	 * and oem_table_id string operands
 	 */
-	status = acpi_ex_resolve_operands(op->common.aml_opcode,
-					  ACPI_WALK_OPERANDS, walk_state);
+	status =
+	    acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS,
+				     walk_state);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
 	}
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index ebc577baeaf9..fa8e2920a3ef 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -245,9 +245,9 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 			 * we will use the return value
 			 */
 			if ((walk_state->control_state->common.state ==
-			     ACPI_CONTROL_PREDICATE_EXECUTING)
-			    && (walk_state->control_state->control.
-				predicate_op == op)) {
+			     ACPI_CONTROL_PREDICATE_EXECUTING) &&
+			    (walk_state->control_state->control.predicate_op ==
+			     op)) {
 				goto result_used;
 			}
 			break;
@@ -481,10 +481,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 
 		/* Get the entire name string from the AML stream */
 
-		status =
-		    acpi_ex_get_name_string(ACPI_TYPE_ANY,
-					    arg->common.value.buffer,
-					    &name_string, &name_length);
+		status = acpi_ex_get_name_string(ACPI_TYPE_ANY,
+						 arg->common.value.buffer,
+						 &name_string, &name_length);
 
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
@@ -503,9 +502,8 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 		 */
 		if ((walk_state->deferred_node) &&
 		    (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
-		    && (arg_index ==
-			(u32) ((walk_state->opcode ==
-				AML_CREATE_FIELD_OP) ? 3 : 2))) {
+		    && (arg_index == (u32)
+			((walk_state->opcode == AML_CREATE_FIELD_OP) ? 3 : 2))) {
 			obj_desc =
 			    ACPI_CAST_PTR(union acpi_operand_object,
 					  walk_state->deferred_node);
@@ -522,9 +520,10 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 			op_info =
 			    acpi_ps_get_opcode_info(parent_op->common.
 						    aml_opcode);
-			if ((op_info->flags & AML_NSNODE)
-			    && (parent_op->common.aml_opcode !=
-				AML_INT_METHODCALL_OP)
+
+			if ((op_info->flags & AML_NSNODE) &&
+			    (parent_op->common.aml_opcode !=
+			     AML_INT_METHODCALL_OP)
 			    && (parent_op->common.aml_opcode != AML_REGION_OP)
 			    && (parent_op->common.aml_opcode !=
 				AML_INT_NAMEPATH_OP)) {
@@ -605,8 +604,8 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
-		ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
-				   (obj_desc, walk_state));
+
+		acpi_db_display_argument_object(obj_desc, walk_state);
 	} else {
 		/* Check for null name case */
 
@@ -633,15 +632,16 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 			return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
 		}
 
-		if ((op_info->flags & AML_HAS_RETVAL)
-		    || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
+		if ((op_info->flags & AML_HAS_RETVAL) ||
+		    (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
 			ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 					  "Argument previously created, already stacked\n"));
 
-			ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
-					   (walk_state->
-					    operands[walk_state->num_operands -
-						     1], walk_state));
+			acpi_db_display_argument_object(walk_state->
+							operands[walk_state->
+								 num_operands -
+								 1],
+							walk_state);
 
 			/*
 			 * Use value that was already previously returned
@@ -685,8 +685,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
 			return_ACPI_STATUS(status);
 		}
 
-		ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
-				   (obj_desc, walk_state));
+		acpi_db_display_argument_object(obj_desc, walk_state);
 	}
 
 	return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index df54d46225cd..ed2f1d362092 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -172,14 +172,14 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 
 cleanup:
 
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Completed a predicate eval=%X Op=%p\n",
 			  walk_state->control_state->common.value,
 			  walk_state->op));
 
 	/* Break to debugger to display result */
 
-	ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
-			   (local_obj_desc, walk_state));
+	acpi_db_display_result_object(local_obj_desc, walk_state);
 
 	/*
 	 * Delete the predicate result object (we know that
@@ -264,8 +264,8 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
 	    (walk_state->control_state->common.state ==
 	     ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "Exec predicate Op=%p State=%p\n", op,
-				  walk_state));
+				  "Exec predicate Op=%p State=%p\n",
+				  op, walk_state));
 
 		walk_state->control_state->common.state =
 		    ACPI_CONTROL_PREDICATE_EXECUTING;
@@ -386,11 +386,10 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 
 	/* Call debugger for single step support (DEBUG build only) */
 
-	ACPI_DEBUGGER_EXEC(status =
-			   acpi_db_single_step(walk_state, op, op_class));
-	ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
-			   return_ACPI_STATUS(status);}
-	) ;
+	status = acpi_db_single_step(walk_state, op, op_class);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
 
 	/* Decode the Opcode Class */
 
@@ -502,9 +501,8 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 						  "Method Reference in a Package, Op=%p\n",
 						  op));
 
-				op->common.node =
-				    (struct acpi_namespace_node *)op->asl.value.
-				    arg->asl.node;
+				op->common.node = (struct acpi_namespace_node *)
+				    op->asl.value.arg->asl.node;
 				acpi_ut_add_reference(op->asl.value.arg->asl.
 						      node->object);
 				return_ACPI_STATUS(AE_OK);
@@ -586,8 +584,8 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 				 * Put the Node on the object stack (Contains the ACPI Name
 				 * of this object)
 				 */
-				walk_state->operands[0] =
-				    (void *)op->common.parent->common.node;
+				walk_state->operands[0] = (void *)
+				    op->common.parent->common.node;
 				walk_state->num_operands = 1;
 
 				status = acpi_ds_create_node(walk_state,
@@ -692,7 +690,8 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 		default:
 
 			ACPI_ERROR((AE_INFO,
-				    "Unimplemented opcode, class=0x%X type=0x%X Opcode=0x%X Op=%p",
+				    "Unimplemented opcode, class=0x%X "
+				    "type=0x%X Opcode=0x%X Op=%p",
 				    op_class, op_type, op->common.aml_opcode,
 				    op));
 
@@ -728,8 +727,8 @@ cleanup:
 
 		/* Break to debugger to display result */
 
-		ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
-				   (walk_state->result_obj, walk_state));
+		acpi_db_display_result_object(walk_state->result_obj,
+					      walk_state);
 
 		/*
 		 * Delete the result op if and only if:
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 097188a6b1c1..b3254742aaf6 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -476,13 +476,9 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
 			status =
 			    acpi_ex_create_region(op->named.data,
 						  op->named.length,
-						  (acpi_adr_space_type) ((op->
-									  common.
-									  value.
-									  arg)->
-									 common.
-									 value.
-									 integer),
+						  (acpi_adr_space_type)
+						  ((op->common.value.arg)->
+						   common.value.integer),
 						  walk_state);
 			if (ACPI_FAILURE(status)) {
 				return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index e2c08cd79aca..8a32153a111b 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -598,11 +598,10 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
 				 * Executing a method: initialize the region and unlock
 				 * the interpreter
 				 */
-				status =
-				    acpi_ex_create_region(op->named.data,
-							  op->named.length,
-							  region_space,
-							  walk_state);
+				status = acpi_ex_create_region(op->named.data,
+							       op->named.length,
+							       region_space,
+							       walk_state);
 				if (ACPI_FAILURE(status)) {
 					return_ACPI_STATUS(status);
 				}
@@ -664,6 +663,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
 								  length,
 								  walk_state);
 				}
+
 				walk_state->operands[0] = NULL;
 				walk_state->num_operands = 0;
 
diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c
index 43b3ea40c0b6..2d7a04493469 100644
--- a/drivers/acpi/acpica/dswscope.c
+++ b/drivers/acpi/acpica/dswscope.c
@@ -77,6 +77,7 @@ void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state)
 				  "Popped object type (%s)\n",
 				  acpi_ut_get_type_name(scope_info->common.
 							value)));
+
 		acpi_ut_delete_generic_state(scope_info);
 	}
 }
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index ccf793247447..112e821a1cec 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -92,8 +92,8 @@ acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info)
 		ACPI_SET_BIT(gpe_register_info->enable_for_run,
 			     (u8)register_bit);
 	}
-	gpe_register_info->enable_mask = gpe_register_info->enable_for_run;
 
+	gpe_register_info->enable_mask = gpe_register_info->enable_for_run;
 	return_ACPI_STATUS(AE_OK);
 }
 
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index e0f24c504513..c00a9f2f82d5 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -167,6 +167,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
 		if (gpe_block->next) {
 			gpe_block->next->previous = gpe_block->previous;
 		}
+
 		acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	}
 
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index 3a958f3612fe..fd5ab9012238 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -346,6 +346,7 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 					ACPI_FREE(notify);
 					notify = next;
 				}
+
 				gpe_event_info->dispatch.notify_list = NULL;
 				gpe_event_info->flags &=
 				    ~ACPI_GPE_DISPATCH_MASK;
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c
index 74e8595f5a2b..709419c7cde4 100644
--- a/drivers/acpi/acpica/evhandler.c
+++ b/drivers/acpi/acpica/evhandler.c
@@ -159,7 +159,7 @@ acpi_ev_has_default_handler(struct acpi_namespace_node *node,
 
 	obj_desc = acpi_ns_get_attached_object(node);
 	if (obj_desc) {
-		handler_obj = obj_desc->device.handler;
+		handler_obj = obj_desc->common_notify.handler;
 
 		/* Walk the linked list of handlers for this object */
 
@@ -247,35 +247,31 @@ acpi_ev_install_handler(acpi_handle obj_handle,
 
 		/* Check if this Device already has a handler for this address space */
 
-		next_handler_obj = obj_desc->device.handler;
-		while (next_handler_obj) {
+		next_handler_obj =
+		    acpi_ev_find_region_handler(handler_obj->address_space.
+						space_id,
+						obj_desc->common_notify.
+						handler);
+		if (next_handler_obj) {
 
 			/* Found a handler, is it for the same address space? */
 
-			if (next_handler_obj->address_space.space_id ==
-			    handler_obj->address_space.space_id) {
-				ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-						  "Found handler for region [%s] in device %p(%p) "
-						  "handler %p\n",
-						  acpi_ut_get_region_name
-						  (handler_obj->address_space.
-						   space_id), obj_desc,
-						  next_handler_obj,
-						  handler_obj));
-
-				/*
-				 * Since the object we found it on was a device, then it
-				 * means that someone has already installed a handler for
-				 * the branch of the namespace from this device on. Just
-				 * bail out telling the walk routine to not traverse this
-				 * branch. This preserves the scoping rule for handlers.
-				 */
-				return (AE_CTRL_DEPTH);
-			}
-
-			/* Walk the linked list of handlers attached to this device */
-
-			next_handler_obj = next_handler_obj->address_space.next;
+			ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+					  "Found handler for region [%s] in device %p(%p) handler %p\n",
+					  acpi_ut_get_region_name(handler_obj->
+								  address_space.
+								  space_id),
+					  obj_desc, next_handler_obj,
+					  handler_obj));
+
+			/*
+			 * Since the object we found it on was a device, then it means
+			 * that someone has already installed a handler for the branch
+			 * of the namespace from this device on. Just bail out telling
+			 * the walk routine to not traverse this branch. This preserves
+			 * the scoping rule for handlers.
+			 */
+			return (AE_CTRL_DEPTH);
 		}
 
 		/*
@@ -309,6 +305,44 @@ acpi_ev_install_handler(acpi_handle obj_handle,
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ev_find_region_handler
+ *
+ * PARAMETERS:  space_id        - The address space ID
+ *              handler_obj     - Head of the handler object list
+ *
+ * RETURN:      Matching handler object. NULL if space ID not matched
+ *
+ * DESCRIPTION: Search a handler object list for a match on the address
+ *              space ID.
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ev_find_region_handler(acpi_adr_space_type
+						       space_id,
+						       union acpi_operand_object
+						       *handler_obj)
+{
+
+	/* Walk the handler list for this device */
+
+	while (handler_obj) {
+
+		/* Same space_id indicates a handler is installed */
+
+		if (handler_obj->address_space.space_id == space_id) {
+			return (handler_obj);
+		}
+
+		/* Next handler object */
+
+		handler_obj = handler_obj->address_space.next;
+	}
+
+	return (NULL);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ev_install_space_handler
  *
  * PARAMETERS:  node            - Namespace node for the device
@@ -332,15 +366,15 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
 {
 	union acpi_operand_object *obj_desc;
 	union acpi_operand_object *handler_obj;
-	acpi_status status;
+	acpi_status status = AE_OK;
 	acpi_object_type type;
 	u8 flags = 0;
 
 	ACPI_FUNCTION_TRACE(ev_install_space_handler);
 
 	/*
-	 * This registration is valid for only the types below and the root. This
-	 * is where the default handlers get placed.
+	 * This registration is valid for only the types below and the root.
+	 * The root node is where the default handlers get installed.
 	 */
 	if ((node->type != ACPI_TYPE_DEVICE) &&
 	    (node->type != ACPI_TYPE_PROCESSOR) &&
@@ -407,38 +441,30 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
 	obj_desc = acpi_ns_get_attached_object(node);
 	if (obj_desc) {
 		/*
-		 * The attached device object already exists. Make sure the handler
-		 * is not already installed.
+		 * The attached device object already exists. Now make sure
+		 * the handler is not already installed.
 		 */
-		handler_obj = obj_desc->device.handler;
-
-		/* Walk the handler list for this device */
-
-		while (handler_obj) {
-
-			/* Same space_id indicates a handler already installed */
+		handler_obj = acpi_ev_find_region_handler(space_id,
+							  obj_desc->
+							  common_notify.
+							  handler);
 
-			if (handler_obj->address_space.space_id == space_id) {
-				if (handler_obj->address_space.handler ==
-				    handler) {
-					/*
-					 * It is (relatively) OK to attempt to install the SAME
-					 * handler twice. This can easily happen with the
-					 * PCI_Config space.
-					 */
-					status = AE_SAME_HANDLER;
-					goto unlock_and_exit;
-				} else {
-					/* A handler is already installed */
-
-					status = AE_ALREADY_EXISTS;
-				}
+		if (handler_obj) {
+			if (handler_obj->address_space.handler == handler) {
+				/*
+				 * It is (relatively) OK to attempt to install the SAME
+				 * handler twice. This can easily happen with the
+				 * PCI_Config space.
+				 */
+				status = AE_SAME_HANDLER;
 				goto unlock_and_exit;
-			}
+			} else {
+				/* A handler is already installed */
 
-			/* Walk the linked list of handlers */
+				status = AE_ALREADY_EXISTS;
+			}
 
-			handler_obj = handler_obj->address_space.next;
+			goto unlock_and_exit;
 		}
 	} else {
 		ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
@@ -477,7 +503,8 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-			  "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
+			  "Installing address handler for region %s(%X) "
+			  "on Device %4.4s %p(%p)\n",
 			  acpi_ut_get_region_name(space_id), space_id,
 			  acpi_ut_get_node_name(node), node, obj_desc));
 
@@ -506,28 +533,26 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
 
 	/* Install at head of Device.address_space list */
 
-	handler_obj->address_space.next = obj_desc->device.handler;
+	handler_obj->address_space.next = obj_desc->common_notify.handler;
 
 	/*
 	 * The Device object is the first reference on the handler_obj.
 	 * Each region that uses the handler adds a reference.
 	 */
-	obj_desc->device.handler = handler_obj;
+	obj_desc->common_notify.handler = handler_obj;
 
 	/*
-	 * Walk the namespace finding all of the regions this
-	 * handler will manage.
+	 * Walk the namespace finding all of the regions this handler will
+	 * manage.
 	 *
-	 * Start at the device and search the branch toward
-	 * the leaf nodes until either the leaf is encountered or
-	 * a device is detected that has an address handler of the
-	 * same type.
+	 * Start at the device and search the branch toward the leaf nodes
+	 * until either the leaf is encountered or a device is detected that
+	 * has an address handler of the same type.
 	 *
-	 * In either case, back up and search down the remainder
-	 * of the branch
+	 * In either case, back up and search down the remainder of the branch
 	 */
-	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
-					ACPI_NS_WALK_UNLOCK,
+	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node,
+					ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
 					acpi_ev_install_handler, NULL,
 					handler_obj, NULL);
 
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index f7c9dfe7b990..8866f50d38f7 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -68,6 +68,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context);
 
 u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node)
 {
+
 	switch (node->type) {
 	case ACPI_TYPE_DEVICE:
 	case ACPI_TYPE_PROCESSOR:
@@ -170,8 +171,8 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 			  acpi_ut_get_notify_name(notify_value, ACPI_TYPE_ANY),
 			  node));
 
-	status = acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
-				 info);
+	status = acpi_os_execute(OSL_NOTIFY_HANDLER,
+				 acpi_ev_notify_dispatch, info);
 	if (ACPI_FAILURE(status)) {
 		acpi_ut_delete_generic_state(info);
 	}
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 5ee79a16fe33..a43178f20c59 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -97,15 +97,12 @@ acpi_status acpi_ev_initialize_op_regions(void)
 		if (acpi_ev_has_default_handler(acpi_gbl_root_node,
 						acpi_gbl_default_address_spaces
 						[i])) {
-			status =
-			    acpi_ev_execute_reg_methods(acpi_gbl_root_node,
-							acpi_gbl_default_address_spaces
-							[i]);
+			acpi_ev_execute_reg_methods(acpi_gbl_root_node,
+						    acpi_gbl_default_address_spaces
+						    [i], ACPI_REG_CONNECT);
 		}
 	}
 
-	acpi_gbl_reg_methods_executed = TRUE;
-
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
@@ -127,6 +124,12 @@ acpi_status acpi_ev_initialize_op_regions(void)
  * DESCRIPTION: Dispatch an address space or operation region access to
  *              a previously installed handler.
  *
+ * NOTE: During early initialization, we always install the default region
+ * handlers for Memory, I/O and PCI_Config. This ensures that these operation
+ * region address spaces are always available as per the ACPI specification.
+ * This is especially needed in order to support the execution of
+ * module-level AML code during loading of the ACPI tables.
+ *
  ******************************************************************************/
 
 acpi_status
@@ -498,6 +501,12 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
 
 	ACPI_FUNCTION_TRACE(ev_attach_region);
 
+	/* Install the region's handler */
+
+	if (region_obj->region.handler) {
+		return_ACPI_STATUS(AE_ALREADY_EXISTS);
+	}
+
 	ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
 			  "Adding Region [%4.4s] %p to address handler %p [%s]\n",
 			  acpi_ut_get_node_name(region_obj->region.node),
@@ -509,17 +518,56 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
 
 	region_obj->region.next = handler_obj->address_space.region_list;
 	handler_obj->address_space.region_list = region_obj;
+	region_obj->region.handler = handler_obj;
+	acpi_ut_add_reference(handler_obj);
 
-	/* Install the region's handler */
+	return_ACPI_STATUS(AE_OK);
+}
 
-	if (region_obj->region.handler) {
-		return_ACPI_STATUS(AE_ALREADY_EXISTS);
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_associate_reg_method
+ *
+ * PARAMETERS:  region_obj          - Region object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find and associate _REG method to a region
+ *
+ ******************************************************************************/
+
+void acpi_ev_associate_reg_method(union acpi_operand_object *region_obj)
+{
+	acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
+	struct acpi_namespace_node *method_node;
+	struct acpi_namespace_node *node;
+	union acpi_operand_object *region_obj2;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(ev_associate_reg_method);
+
+	region_obj2 = acpi_ns_get_secondary_object(region_obj);
+	if (!region_obj2) {
+		return_VOID;
 	}
 
-	region_obj->region.handler = handler_obj;
-	acpi_ut_add_reference(handler_obj);
+	node = region_obj->region.node->parent;
 
-	return_ACPI_STATUS(AE_OK);
+	/* Find any "_REG" method associated with this region definition */
+
+	status =
+	    acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
+				     &method_node);
+	if (ACPI_SUCCESS(status)) {
+		/*
+		 * The _REG method is optional and there can be only one per region
+		 * definition. This will be executed when the handler is attached
+		 * or removed
+		 */
+		region_obj2->extra.method_REG = method_node;
+	}
+
+	return_VOID;
 }
 
 /*******************************************************************************
@@ -550,7 +598,18 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
-	if (region_obj2->extra.method_REG == NULL) {
+	if (region_obj2->extra.method_REG == NULL ||
+	    region_obj->region.handler == NULL ||
+	    !acpi_gbl_reg_methods_enabled) {
+		return_ACPI_STATUS(AE_OK);
+	}
+
+	/* _REG(DISCONNECT) should be paired with _REG(CONNECT) */
+
+	if ((function == ACPI_REG_CONNECT &&
+	     region_obj->common.flags & AOPOBJ_REG_CONNECTED) ||
+	    (function == ACPI_REG_DISCONNECT &&
+	     !(region_obj->common.flags & AOPOBJ_REG_CONNECTED))) {
 		return_ACPI_STATUS(AE_OK);
 	}
 
@@ -599,6 +658,16 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 	status = acpi_ns_evaluate(info);
 	acpi_ut_remove_reference(args[1]);
 
+	if (ACPI_FAILURE(status)) {
+		goto cleanup2;
+	}
+
+	if (function == ACPI_REG_CONNECT) {
+		region_obj->common.flags |= AOPOBJ_REG_CONNECTED;
+	} else {
+		region_obj->common.flags &= ~AOPOBJ_REG_CONNECTED;
+	}
+
 cleanup2:
 	acpi_ut_remove_reference(args[0]);
 
@@ -613,24 +682,25 @@ cleanup1:
  *
  * PARAMETERS:  node            - Namespace node for the device
  *              space_id        - The address space ID
+ *              function        - Passed to _REG: On (1) or Off (0)
  *
- * RETURN:      Status
+ * RETURN:      None
  *
  * DESCRIPTION: Run all _REG methods for the input Space ID;
  *              Note: assumes namespace is locked, or system init time.
  *
  ******************************************************************************/
 
-acpi_status
+void
 acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
-			    acpi_adr_space_type space_id)
+			    acpi_adr_space_type space_id, u32 function)
 {
-	acpi_status status;
 	struct acpi_reg_walk_info info;
 
 	ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
 
 	info.space_id = space_id;
+	info.function = function;
 	info.reg_run_count = 0;
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_NAMES,
@@ -643,9 +713,9 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
 	 * regions and _REG methods. (i.e. handlers must be installed for all
 	 * regions of this Space ID before we can run any _REG methods)
 	 */
-	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
-					ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
-					NULL, &info, NULL);
+	(void)acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+				     ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, NULL,
+				     &info, NULL);
 
 	/* Special case for EC: handle "orphan" _REG methods with no region */
 
@@ -658,7 +728,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
 			      info.reg_run_count,
 			      acpi_ut_get_region_name(info.space_id)));
 
-	return_ACPI_STATUS(status);
+	return_VOID;
 }
 
 /*******************************************************************************
@@ -717,7 +787,7 @@ acpi_ev_reg_run(acpi_handle obj_handle,
 	}
 
 	info->reg_run_count++;
-	status = acpi_ev_execute_reg_method(obj_desc, ACPI_REG_CONNECT);
+	status = acpi_ev_execute_reg_method(obj_desc, info->function);
 	return (status);
 }
 
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index da323390bb70..bb2e529249c7 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -507,9 +507,6 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
 	acpi_adr_space_type space_id;
 	struct acpi_namespace_node *node;
 	acpi_status status;
-	struct acpi_namespace_node *method_node;
-	acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
-	union acpi_operand_object *region_obj2;
 
 	ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked);
 
@@ -521,38 +518,15 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
 		return_ACPI_STATUS(AE_OK);
 	}
 
-	region_obj2 = acpi_ns_get_secondary_object(region_obj);
-	if (!region_obj2) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
+	acpi_ev_associate_reg_method(region_obj);
+	region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
 
 	node = region_obj->region.node->parent;
 	space_id = region_obj->region.space_id;
 
-	/* Setup defaults */
-
-	region_obj->region.handler = NULL;
-	region_obj2->extra.method_REG = NULL;
-	region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
-	region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
-
-	/* Find any "_REG" method associated with this region definition */
-
-	status =
-	    acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
-				     &method_node);
-	if (ACPI_SUCCESS(status)) {
-		/*
-		 * The _REG method is optional and there can be only one per region
-		 * definition. This will be executed when the handler is attached
-		 * or removed
-		 */
-		region_obj2->extra.method_REG = method_node;
-	}
-
 	/*
 	 * The following loop depends upon the root Node having no parent
-	 * ie: acpi_gbl_root_node->parent_entry being set to NULL
+	 * ie: acpi_gbl_root_node->Parent being set to NULL
 	 */
 	while (node) {
 
@@ -566,18 +540,10 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
 
 			switch (node->type) {
 			case ACPI_TYPE_DEVICE:
-
-				handler_obj = obj_desc->device.handler;
-				break;
-
 			case ACPI_TYPE_PROCESSOR:
-
-				handler_obj = obj_desc->processor.handler;
-				break;
-
 			case ACPI_TYPE_THERMAL:
 
-				handler_obj = obj_desc->thermal_zone.handler;
+				handler_obj = obj_desc->common_notify.handler;
 				break;
 
 			case ACPI_TYPE_METHOD:
@@ -602,60 +568,49 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
 				break;
 			}
 
-			while (handler_obj) {
-
-				/* Is this handler of the correct type? */
+			handler_obj =
+			    acpi_ev_find_region_handler(space_id, handler_obj);
+			if (handler_obj) {
 
-				if (handler_obj->address_space.space_id ==
-				    space_id) {
+				/* Found correct handler */
 
-					/* Found correct handler */
+				ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+						  "Found handler %p for region %p in obj %p\n",
+						  handler_obj, region_obj,
+						  obj_desc));
 
-					ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
-							  "Found handler %p for region %p in obj %p\n",
-							  handler_obj,
+				status =
+				    acpi_ev_attach_region(handler_obj,
 							  region_obj,
-							  obj_desc));
+							  acpi_ns_locked);
 
+				/*
+				 * Tell all users that this region is usable by
+				 * running the _REG method
+				 */
+				if (acpi_ns_locked) {
 					status =
-					    acpi_ev_attach_region(handler_obj,
-								  region_obj,
-								  acpi_ns_locked);
-
-					/*
-					 * Tell all users that this region is usable by
-					 * running the _REG method
-					 */
-					if (acpi_ns_locked) {
-						status =
-						    acpi_ut_release_mutex
-						    (ACPI_MTX_NAMESPACE);
-						if (ACPI_FAILURE(status)) {
-							return_ACPI_STATUS
-							    (status);
-						}
+					    acpi_ut_release_mutex
+					    (ACPI_MTX_NAMESPACE);
+					if (ACPI_FAILURE(status)) {
+						return_ACPI_STATUS(status);
 					}
+				}
 
+				status =
+				    acpi_ev_execute_reg_method(region_obj,
+							       ACPI_REG_CONNECT);
+
+				if (acpi_ns_locked) {
 					status =
-					    acpi_ev_execute_reg_method
-					    (region_obj, ACPI_REG_CONNECT);
-
-					if (acpi_ns_locked) {
-						status =
-						    acpi_ut_acquire_mutex
-						    (ACPI_MTX_NAMESPACE);
-						if (ACPI_FAILURE(status)) {
-							return_ACPI_STATUS
-							    (status);
-						}
+					    acpi_ut_acquire_mutex
+					    (ACPI_MTX_NAMESPACE);
+					if (ACPI_FAILURE(status)) {
+						return_ACPI_STATUS(status);
 					}
-
-					return_ACPI_STATUS(AE_OK);
 				}
 
-				/* Try next handler in the list */
-
-				handler_obj = handler_obj->address_space.next;
+				return_ACPI_STATUS(AE_OK);
 			}
 		}
 
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 07d22bfbaa00..012b9dedfa79 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -879,9 +879,8 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 
 	ACPI_FUNCTION_TRACE(acpi_install_gpe_handler);
 
-	status =
-	    acpi_ev_install_gpe_handler(gpe_device, gpe_number, type, FALSE,
-					address, context);
+	status = acpi_ev_install_gpe_handler(gpe_device, gpe_number, type,
+					     FALSE, address, context);
 
 	return_ACPI_STATUS(status);
 }
@@ -914,8 +913,8 @@ acpi_install_gpe_raw_handler(acpi_handle gpe_device,
 
 	ACPI_FUNCTION_TRACE(acpi_install_gpe_raw_handler);
 
-	status = acpi_ev_install_gpe_handler(gpe_device, gpe_number, type, TRUE,
-					     address, context);
+	status = acpi_ev_install_gpe_handler(gpe_device, gpe_number, type,
+					     TRUE, address, context);
 
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index f21afbab03f7..35f9e60ce2b7 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -112,41 +112,9 @@ acpi_install_address_space_handler(acpi_handle device,
 		goto unlock_and_exit;
 	}
 
-	/*
-	 * For the default space_IDs, (the IDs for which there are default region handlers
-	 * installed) Only execute the _REG methods if the global initialization _REG
-	 * methods have already been run (via acpi_initialize_objects). In other words,
-	 * we will defer the execution of the _REG methods for these space_IDs until
-	 * execution of acpi_initialize_objects. This is done because we need the handlers
-	 * for the default spaces (mem/io/pci/table) to be installed before we can run
-	 * any control methods (or _REG methods). There is known BIOS code that depends
-	 * on this.
-	 *
-	 * For all other space_IDs, we can safely execute the _REG methods immediately.
-	 * This means that for IDs like embedded_controller, this function should be called
-	 * only after acpi_enable_subsystem has been called.
-	 */
-	switch (space_id) {
-	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-	case ACPI_ADR_SPACE_SYSTEM_IO:
-	case ACPI_ADR_SPACE_PCI_CONFIG:
-	case ACPI_ADR_SPACE_DATA_TABLE:
-
-		if (!acpi_gbl_reg_methods_executed) {
-
-			/* We will defer execution of the _REG methods for this space */
-			goto unlock_and_exit;
-		}
-		break;
-
-	default:
-
-		break;
-	}
-
 	/* Run all _REG methods for this address space */
 
-	status = acpi_ev_execute_reg_methods(node, space_id);
+	acpi_ev_execute_reg_methods(node, space_id, ACPI_REG_CONNECT);
 
 unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
@@ -215,8 +183,8 @@ acpi_remove_address_space_handler(acpi_handle device,
 
 	/* Find the address handler the user requested */
 
-	handler_obj = obj_desc->device.handler;
-	last_obj_ptr = &obj_desc->device.handler;
+	handler_obj = obj_desc->common_notify.handler;
+	last_obj_ptr = &obj_desc->common_notify.handler;
 	while (handler_obj) {
 
 		/* We have a handler, see if user requested this one */
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index b540913c11ac..adcb9c7029c4 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -358,8 +358,8 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		}
 
 		/*
-		 * If the Region Address and Length have not been previously evaluated,
-		 * evaluate them now and save the results.
+		 * If the Region Address and Length have not been previously
+		 * evaluated, evaluate them now and save the results.
 		 */
 		if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
 			status = acpi_ds_get_region_arguments(obj_desc);
@@ -454,8 +454,8 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		}
 
 		/*
-		 * Copy the table from the buffer because the buffer could be modified
-		 * or even deleted in the future
+		 * Copy the table from the buffer because the buffer could be
+		 * modified or even deleted in the future
 		 */
 		table = ACPI_ALLOCATE(length);
 		if (!table) {
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index 1e4c5b6dc0b0..73c2e823488d 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -227,8 +227,8 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
 		/* Copy the integer to the buffer, LSB first */
 
 		new_buf = return_desc->buffer.pointer;
-		memcpy(new_buf,
-		       &obj_desc->integer.value, acpi_gbl_integer_byte_width);
+		memcpy(new_buf, &obj_desc->integer.value,
+		       acpi_gbl_integer_byte_width);
 		break;
 
 	case ACPI_TYPE_STRING:
@@ -354,9 +354,8 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 data_width)
 
 			/* Get one hex digit, most significant digits first */
 
-			string[k] =
-			    (u8) acpi_ut_hex_to_ascii_char(integer,
-							   ACPI_MUL_4(j));
+			string[k] = (u8)
+			    acpi_ut_hex_to_ascii_char(integer, ACPI_MUL_4(j));
 			k++;
 		}
 		break;
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index ccb7219bdcee..46be5a276863 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -189,9 +189,9 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
 
 	/* Attach object to the Node */
 
-	status =
-	    acpi_ns_attach_object((struct acpi_namespace_node *)walk_state->
-				  operands[0], obj_desc, ACPI_TYPE_EVENT);
+	status = acpi_ns_attach_object((struct acpi_namespace_node *)
+				       walk_state->operands[0], obj_desc,
+				       ACPI_TYPE_EVENT);
 
 cleanup:
 	/*
@@ -326,9 +326,10 @@ acpi_ex_create_region(u8 * aml_start,
 	 * Remember location in AML stream of address & length
 	 * operands since they need to be evaluated at run time.
 	 */
-	region_obj2 = obj_desc->common.next_object;
+	region_obj2 = acpi_ns_get_secondary_object(obj_desc);
 	region_obj2->extra.aml_start = aml_start;
 	region_obj2->extra.aml_length = aml_length;
+	region_obj2->extra.method_REG = NULL;
 	if (walk_state->scope_info) {
 		region_obj2->extra.scope_node =
 		    walk_state->scope_info->scope.node;
@@ -342,6 +343,10 @@ acpi_ex_create_region(u8 * aml_start,
 	obj_desc->region.address = 0;
 	obj_desc->region.length = 0;
 	obj_desc->region.node = node;
+	obj_desc->region.handler = NULL;
+	obj_desc->common.flags &=
+	    ~(AOPOBJ_SETUP_COMPLETE | AOPOBJ_REG_CONNECTED |
+	      AOPOBJ_OBJECT_INITIALIZED);
 
 	/* Install the new region object in the parent Node */
 
@@ -492,10 +497,9 @@ acpi_ex_create_method(u8 * aml_start,
 	 * Disassemble the method flags. Split off the arg_count, Serialized
 	 * flag, and sync_level for efficiency.
 	 */
-	method_flags = (u8) operand[1]->integer.value;
-
-	obj_desc->method.param_count =
-	    (u8) (method_flags & AML_METHOD_ARG_COUNT);
+	method_flags = (u8)operand[1]->integer.value;
+	obj_desc->method.param_count = (u8)
+	    (method_flags & AML_METHOD_ARG_COUNT);
 
 	/*
 	 * Get the sync_level. If method is serialized, a mutex will be
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index de92458236f5..b22309094c5f 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -43,21 +43,11 @@
 
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acnamesp.h"
 #include "acinterp.h"
-#include "acparser.h"
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exdebug")
 
-static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
-
-/* Local prototypes */
-
-#ifdef ACPI_DEBUG_OUTPUT
-static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
-#endif
-
 #ifndef ACPI_NO_ERROR_MESSAGES
 /*******************************************************************************
  *
@@ -80,7 +70,6 @@ static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
  * enabled if necessary.
  *
  ******************************************************************************/
-
 void
 acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 			u32 level, u32 index)
@@ -99,20 +88,40 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 		return_VOID;
 	}
 
-	/*
-	 * We will emit the current timer value (in microseconds) with each
-	 * debug output. Only need the lower 26 bits. This allows for 67
-	 * million microseconds or 67 seconds before rollover.
-	 */
-	timer = ((u32)acpi_os_get_timer() / 10);	/* (100 nanoseconds to microseconds) */
-	timer &= 0x03FFFFFF;
+	/* Null string or newline -- don't emit the line header */
+
+	if (source_desc &&
+	    (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) &&
+	    (source_desc->common.type == ACPI_TYPE_STRING)) {
+		if ((source_desc->string.length == 0) ||
+		    ((source_desc->string.length == 1) &&
+		     (*source_desc->string.pointer == '\n'))) {
+			acpi_os_printf("\n");
+			return_VOID;
+		}
+	}
 
 	/*
 	 * Print line header as long as we are not in the middle of an
 	 * object display
 	 */
 	if (!((level > 0) && index == 0)) {
-		acpi_os_printf("[ACPI Debug %.8u] %*s", timer, level, " ");
+		if (acpi_gbl_display_debug_timer) {
+			/*
+			 * We will emit the current timer value (in microseconds) with each
+			 * debug output. Only need the lower 26 bits. This allows for 67
+			 * million microseconds or 67 seconds before rollover.
+			 *
+			 * Convert 100 nanosecond units to microseconds
+			 */
+			timer = ((u32)acpi_os_get_timer() / 10);
+			timer &= 0x03FFFFFF;
+
+			acpi_os_printf("[ACPI Debug T=0x%8.8X] %*s", timer,
+				       level, " ");
+		} else {
+			acpi_os_printf("[ACPI Debug] %*s", level, " ");
+		}
 	}
 
 	/* Display the index for package output only */
@@ -127,8 +136,15 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 	}
 
 	if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
-		acpi_os_printf("%s ",
-			       acpi_ut_get_object_type_name(source_desc));
+
+		/* No object type prefix needed for integers and strings */
+
+		if ((source_desc->common.type != ACPI_TYPE_INTEGER) &&
+		    (source_desc->common.type != ACPI_TYPE_STRING)) {
+			acpi_os_printf("%s ",
+				       acpi_ut_get_object_type_name
+				       (source_desc));
+		}
 
 		if (!acpi_ut_valid_internal_object(source_desc)) {
 			acpi_os_printf("%p, Invalid Internal Object!\n",
@@ -137,7 +153,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 		}
 	} else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
 		   ACPI_DESC_TYPE_NAMED) {
-		acpi_os_printf("%s: %p\n",
+		acpi_os_printf("%s (Node %p)\n",
 			       acpi_ut_get_type_name(((struct
 						       acpi_namespace_node *)
 						      source_desc)->type),
@@ -175,14 +191,12 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 
 	case ACPI_TYPE_STRING:
 
-		acpi_os_printf("[0x%.2X] \"%s\"\n",
-			       source_desc->string.length,
-			       source_desc->string.pointer);
+		acpi_os_printf("\"%s\"\n", source_desc->string.pointer);
 		break;
 
 	case ACPI_TYPE_PACKAGE:
 
-		acpi_os_printf("[Contains 0x%.2X Elements]\n",
+		acpi_os_printf("(Contains 0x%.2X Elements):\n",
 			       source_desc->package.count);
 
 		/* Output the entire contents of the package */
@@ -261,11 +275,14 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 			if (ACPI_GET_DESCRIPTOR_TYPE
 			    (source_desc->reference.object) ==
 			    ACPI_DESC_TYPE_NAMED) {
-				acpi_ex_do_debug_object(((struct
-							  acpi_namespace_node *)
+
+				/* Reference object is a namespace node */
+
+				acpi_ex_do_debug_object(ACPI_CAST_PTR
+							(union
+							 acpi_operand_object,
 							 source_desc->reference.
-							 object)->object,
-							level + 4, 0);
+							 object), level + 4, 0);
 			} else {
 				object_desc = source_desc->reference.object;
 				value = source_desc->reference.value;
@@ -293,9 +310,14 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 				case ACPI_TYPE_PACKAGE:
 
 					acpi_os_printf("Package[%u] = ", value);
-					acpi_ex_do_debug_object(*source_desc->
-								reference.where,
-								level + 4, 0);
+					if (!(*source_desc->reference.where)) {
+						acpi_os_printf
+						    ("[Uninitialized Package Element]\n");
+					} else {
+						acpi_ex_do_debug_object
+						    (*source_desc->reference.
+						     where, level + 4, 0);
+					}
 					break;
 
 				default:
@@ -311,7 +333,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 
 	default:
 
-		acpi_os_printf("%p\n", source_desc);
+		acpi_os_printf("(Descriptor %p)\n", source_desc);
 		break;
 	}
 
@@ -319,316 +341,3 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
 	return_VOID;
 }
 #endif
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_interpreter_trace_enabled
- *
- * PARAMETERS:  name                - Whether method name should be matched,
- *                                    this should be checked before starting
- *                                    the tracer
- *
- * RETURN:      TRUE if interpreter trace is enabled.
- *
- * DESCRIPTION: Check whether interpreter trace is enabled
- *
- ******************************************************************************/
-
-static u8 acpi_ex_interpreter_trace_enabled(char *name)
-{
-
-	/* Check if tracing is enabled */
-
-	if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
-		return (FALSE);
-	}
-
-	/*
-	 * Check if tracing is filtered:
-	 *
-	 * 1. If the tracer is started, acpi_gbl_trace_method_object should have
-	 *    been filled by the trace starter
-	 * 2. If the tracer is not started, acpi_gbl_trace_method_name should be
-	 *    matched if it is specified
-	 * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
-	 *    not be cleared by the trace stopper during the first match
-	 */
-	if (acpi_gbl_trace_method_object) {
-		return (TRUE);
-	}
-	if (name &&
-	    (acpi_gbl_trace_method_name &&
-	     strcmp(acpi_gbl_trace_method_name, name))) {
-		return (FALSE);
-	}
-	if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
-	    !acpi_gbl_trace_method_name) {
-		return (FALSE);
-	}
-
-	return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_get_trace_event_name
- *
- * PARAMETERS:  type            - Trace event type
- *
- * RETURN:      Trace event name.
- *
- * DESCRIPTION: Used to obtain the full trace event name.
- *
- ******************************************************************************/
-
-#ifdef ACPI_DEBUG_OUTPUT
-
-static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
-{
-	switch (type) {
-	case ACPI_TRACE_AML_METHOD:
-
-		return "Method";
-
-	case ACPI_TRACE_AML_OPCODE:
-
-		return "Opcode";
-
-	case ACPI_TRACE_AML_REGION:
-
-		return "Region";
-
-	default:
-
-		return "";
-	}
-}
-
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_trace_point
- *
- * PARAMETERS:  type                - Trace event type
- *              begin               - TRUE if before execution
- *              aml                 - Executed AML address
- *              pathname            - Object path
- *
- * RETURN:      None
- *
- * DESCRIPTION: Internal interpreter execution trace.
- *
- ******************************************************************************/
-
-void
-acpi_ex_trace_point(acpi_trace_event_type type,
-		    u8 begin, u8 *aml, char *pathname)
-{
-
-	ACPI_FUNCTION_NAME(ex_trace_point);
-
-	if (pathname) {
-		ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
-				  "%s %s [0x%p:%s] execution.\n",
-				  acpi_ex_get_trace_event_name(type),
-				  begin ? "Begin" : "End", aml, pathname));
-	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
-				  "%s %s [0x%p] execution.\n",
-				  acpi_ex_get_trace_event_name(type),
-				  begin ? "Begin" : "End", aml));
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_start_trace_method
- *
- * PARAMETERS:  method_node         - Node of the method
- *              obj_desc            - The method object
- *              walk_state          - current state, NULL if not yet executing
- *                                    a method.
- *
- * RETURN:      None
- *
- * DESCRIPTION: Start control method execution trace
- *
- ******************************************************************************/
-
-void
-acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
-			   union acpi_operand_object *obj_desc,
-			   struct acpi_walk_state *walk_state)
-{
-	acpi_status status;
-	char *pathname = NULL;
-	u8 enabled = FALSE;
-
-	ACPI_FUNCTION_NAME(ex_start_trace_method);
-
-	if (method_node) {
-		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-	if (ACPI_FAILURE(status)) {
-		goto exit;
-	}
-
-	enabled = acpi_ex_interpreter_trace_enabled(pathname);
-	if (enabled && !acpi_gbl_trace_method_object) {
-		acpi_gbl_trace_method_object = obj_desc;
-		acpi_gbl_original_dbg_level = acpi_dbg_level;
-		acpi_gbl_original_dbg_layer = acpi_dbg_layer;
-		acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
-		acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
-
-		if (acpi_gbl_trace_dbg_level) {
-			acpi_dbg_level = acpi_gbl_trace_dbg_level;
-		}
-		if (acpi_gbl_trace_dbg_layer) {
-			acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
-		}
-	}
-	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
-exit:
-	if (enabled) {
-		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
-				 obj_desc ? obj_desc->method.aml_start : NULL,
-				 pathname);
-	}
-	if (pathname) {
-		ACPI_FREE(pathname);
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_stop_trace_method
- *
- * PARAMETERS:  method_node         - Node of the method
- *              obj_desc            - The method object
- *              walk_state          - current state, NULL if not yet executing
- *                                    a method.
- *
- * RETURN:      None
- *
- * DESCRIPTION: Stop control method execution trace
- *
- ******************************************************************************/
-
-void
-acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
-			  union acpi_operand_object *obj_desc,
-			  struct acpi_walk_state *walk_state)
-{
-	acpi_status status;
-	char *pathname = NULL;
-	u8 enabled;
-
-	ACPI_FUNCTION_NAME(ex_stop_trace_method);
-
-	if (method_node) {
-		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-	if (ACPI_FAILURE(status)) {
-		goto exit_path;
-	}
-
-	enabled = acpi_ex_interpreter_trace_enabled(NULL);
-
-	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
-	if (enabled) {
-		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
-				 obj_desc ? obj_desc->method.aml_start : NULL,
-				 pathname);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-	if (ACPI_FAILURE(status)) {
-		goto exit_path;
-	}
-
-	/* Check whether the tracer should be stopped */
-
-	if (acpi_gbl_trace_method_object == obj_desc) {
-
-		/* Disable further tracing if type is one-shot */
-
-		if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
-			acpi_gbl_trace_method_name = NULL;
-		}
-
-		acpi_dbg_level = acpi_gbl_original_dbg_level;
-		acpi_dbg_layer = acpi_gbl_original_dbg_layer;
-		acpi_gbl_trace_method_object = NULL;
-	}
-
-	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
-exit_path:
-	if (pathname) {
-		ACPI_FREE(pathname);
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_start_trace_opcode
- *
- * PARAMETERS:  op                  - The parser opcode object
- *              walk_state          - current state, NULL if not yet executing
- *                                    a method.
- *
- * RETURN:      None
- *
- * DESCRIPTION: Start opcode execution trace
- *
- ******************************************************************************/
-
-void
-acpi_ex_start_trace_opcode(union acpi_parse_object *op,
-			   struct acpi_walk_state *walk_state)
-{
-
-	ACPI_FUNCTION_NAME(ex_start_trace_opcode);
-
-	if (acpi_ex_interpreter_trace_enabled(NULL) &&
-	    (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
-		ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
-				 op->common.aml, op->common.aml_op_name);
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ex_stop_trace_opcode
- *
- * PARAMETERS:  op                  - The parser opcode object
- *              walk_state          - current state, NULL if not yet executing
- *                                    a method.
- *
- * RETURN:      None
- *
- * DESCRIPTION: Stop opcode execution trace
- *
- ******************************************************************************/
-
-void
-acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
-			  struct acpi_walk_state *walk_state)
-{
-
-	ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
-
-	if (acpi_ex_interpreter_trace_enabled(NULL) &&
-	    (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
-		ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
-				 op->common.aml, op->common.aml_op_name);
-	}
-}
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index d836f888bb16..ff976c43b992 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -508,7 +508,8 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
 			if (next) {
 				acpi_os_printf("(%s %2.2X)",
 					       acpi_ut_get_object_type_name
-					       (next), next->common.type);
+					       (next),
+					       next->address_space.space_id);
 
 				while (next->address_space.next) {
 					if ((next->common.type ==
@@ -520,7 +521,8 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
 					acpi_os_printf("->%p(%s %2.2X)", next,
 						       acpi_ut_get_object_type_name
 						       (next),
-						       next->common.type);
+						       next->address_space.
+						       space_id);
 
 					if ((next == start) || (next == data)) {
 						acpi_os_printf
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index 61fd9c7b88bc..ad7080ba65e2 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -167,10 +167,11 @@ acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state,
 		    || obj_desc->field.region_obj->region.space_id ==
 		    ACPI_ADR_SPACE_IPMI)) {
 		/*
-		 * This is an SMBus, GSBus or IPMI read. We must create a buffer to hold
-		 * the data and then directly access the region handler.
+		 * This is an SMBus, GSBus or IPMI read. We must create a buffer to
+		 * hold the data and then directly access the region handler.
 		 *
-		 * Note: SMBus and GSBus protocol value is passed in upper 16-bits of Function
+		 * Note: SMBus and GSBus protocol value is passed in upper 16-bits
+		 * of Function
 		 */
 		if (obj_desc->field.region_obj->region.space_id ==
 		    ACPI_ADR_SPACE_SMBUS) {
@@ -180,17 +181,17 @@ acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state,
 		} else if (obj_desc->field.region_obj->region.space_id ==
 			   ACPI_ADR_SPACE_GSBUS) {
 			accessor_type = obj_desc->field.attribute;
-			length = acpi_ex_get_serial_access_length(accessor_type,
-								  obj_desc->
-								  field.
-								  access_length);
+			length =
+			    acpi_ex_get_serial_access_length(accessor_type,
+							     obj_desc->field.
+							     access_length);
 
 			/*
 			 * Add additional 2 bytes for the generic_serial_bus data buffer:
 			 *
-			 *     Status;      (Byte 0 of the data buffer)
-			 *     Length;      (Byte 1 of the data buffer)
-			 *     Data[x-1];   (Bytes 2-x of the arbitrary length data buffer)
+			 *     Status;    (Byte 0 of the data buffer)
+			 *     Length;    (Byte 1 of the data buffer)
+			 *     Data[x-1]: (Bytes 2-x of the arbitrary length data buffer)
 			 */
 			length += 2;
 			function = ACPI_READ | (accessor_type << 16);
@@ -216,6 +217,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state,
 							     buffer_desc->
 							     buffer.pointer),
 					       function);
+
 		acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
 		goto exit;
 	}
@@ -232,6 +234,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state,
 	 */
 	length =
 	    (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
+
 	if (length > acpi_gbl_integer_byte_width) {
 
 		/* Field is too large for an Integer, create a Buffer instead */
@@ -273,8 +276,10 @@ acpi_ex_read_data_from_field(struct acpi_walk_state * walk_state,
 
 		/* Perform the write */
 
-		status = acpi_ex_access_region(obj_desc, 0,
-					       (u64 *)buffer, ACPI_READ);
+		status =
+		    acpi_ex_access_region(obj_desc, 0, (u64 *)buffer,
+					  ACPI_READ);
+
 		acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
 		if (ACPI_FAILURE(status)) {
 			acpi_ut_remove_reference(buffer_desc);
@@ -366,19 +371,22 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		    || obj_desc->field.region_obj->region.space_id ==
 		    ACPI_ADR_SPACE_IPMI)) {
 		/*
-		 * This is an SMBus, GSBus or IPMI write. We will bypass the entire field
-		 * mechanism and handoff the buffer directly to the handler. For
-		 * these address spaces, the buffer is bi-directional; on a write,
-		 * return data is returned in the same buffer.
+		 * This is an SMBus, GSBus or IPMI write. We will bypass the entire
+		 * field mechanism and handoff the buffer directly to the handler.
+		 * For these address spaces, the buffer is bi-directional; on a
+		 * write, return data is returned in the same buffer.
 		 *
 		 * Source must be a buffer of sufficient size:
-		 * ACPI_SMBUS_BUFFER_SIZE, ACPI_GSBUS_BUFFER_SIZE, or ACPI_IPMI_BUFFER_SIZE.
+		 * ACPI_SMBUS_BUFFER_SIZE, ACPI_GSBUS_BUFFER_SIZE, or
+		 * ACPI_IPMI_BUFFER_SIZE.
 		 *
-		 * Note: SMBus and GSBus protocol type is passed in upper 16-bits of Function
+		 * Note: SMBus and GSBus protocol type is passed in upper 16-bits
+		 * of Function
 		 */
 		if (source_desc->common.type != ACPI_TYPE_BUFFER) {
 			ACPI_ERROR((AE_INFO,
-				    "SMBus/IPMI/GenericSerialBus write requires Buffer, found type %s",
+				    "SMBus/IPMI/GenericSerialBus write requires "
+				    "Buffer, found type %s",
 				    acpi_ut_get_object_type_name(source_desc)));
 
 			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
@@ -392,17 +400,17 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		} else if (obj_desc->field.region_obj->region.space_id ==
 			   ACPI_ADR_SPACE_GSBUS) {
 			accessor_type = obj_desc->field.attribute;
-			length = acpi_ex_get_serial_access_length(accessor_type,
-								  obj_desc->
-								  field.
-								  access_length);
+			length =
+			    acpi_ex_get_serial_access_length(accessor_type,
+							     obj_desc->field.
+							     access_length);
 
 			/*
 			 * Add additional 2 bytes for the generic_serial_bus data buffer:
 			 *
-			 *     Status;      (Byte 0 of the data buffer)
-			 *     Length;      (Byte 1 of the data buffer)
-			 *     Data[x-1];   (Bytes 2-x of the arbitrary length data buffer)
+			 *     Status;    (Byte 0 of the data buffer)
+			 *     Length;    (Byte 1 of the data buffer)
+			 *     Data[x-1]: (Bytes 2-x of the arbitrary length data buffer)
 			 */
 			length += 2;
 			function = ACPI_WRITE | (accessor_type << 16);
@@ -414,7 +422,8 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 
 		if (source_desc->buffer.length < length) {
 			ACPI_ERROR((AE_INFO,
-				    "SMBus/IPMI/GenericSerialBus write requires Buffer of length %u, found length %u",
+				    "SMBus/IPMI/GenericSerialBus write requires "
+				    "Buffer of length %u, found length %u",
 				    length, source_desc->buffer.length));
 
 			return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
@@ -438,8 +447,8 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		 * Perform the write (returns status and perhaps data in the
 		 * same buffer)
 		 */
-		status = acpi_ex_access_region(obj_desc, 0,
-					       (u64 *) buffer, function);
+		status =
+		    acpi_ex_access_region(obj_desc, 0, (u64 *)buffer, function);
 		acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
 
 		*result_desc = buffer_desc;
@@ -460,7 +469,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		}
 
 		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-				  "GPIO FieldWrite [FROM]: (%s:%X), Val %.8X  [TO]:  Pin %u Bits %u\n",
+				  "GPIO FieldWrite [FROM]: (%s:%X), Val %.8X  [TO]: Pin %u Bits %u\n",
 				  acpi_ut_get_type_name(source_desc->common.
 							type),
 				  source_desc->common.type,
@@ -476,8 +485,9 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 
 		/* Perform the write */
 
-		status = acpi_ex_access_region(obj_desc, 0,
-					       (u64 *)buffer, ACPI_WRITE);
+		status =
+		    acpi_ex_access_region(obj_desc, 0, (u64 *)buffer,
+					  ACPI_WRITE);
 		acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 70b7bbbb860b..0337191dbf3d 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -180,7 +180,8 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 			 * byte, and a field with Dword access specified.
 			 */
 			ACPI_ERROR((AE_INFO,
-				    "Field [%4.4s] access width (%u bytes) too large for region [%4.4s] (length %u)",
+				    "Field [%4.4s] access width (%u bytes) "
+				    "too large for region [%4.4s] (length %u)",
 				    acpi_ut_get_node_name(obj_desc->
 							  common_field.node),
 				    obj_desc->common_field.access_byte_width,
@@ -194,7 +195,8 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 		 * exceeds region length, indicate an error
 		 */
 		ACPI_ERROR((AE_INFO,
-			    "Field [%4.4s] Base+Offset+Width %u+%u+%u is beyond end of region [%4.4s] (length %u)",
+			    "Field [%4.4s] Base+Offset+Width %u+%u+%u "
+			    "is beyond end of region [%4.4s] (length %u)",
 			    acpi_ut_get_node_name(obj_desc->common_field.node),
 			    obj_desc->common_field.base_byte_offset,
 			    field_datum_byte_offset,
@@ -638,15 +640,15 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
 
 			ACPI_ERROR((AE_INFO,
 				    "Unknown UpdateRule value: 0x%X",
-				    (obj_desc->common_field.
-				     field_flags &
+				    (obj_desc->common_field.field_flags &
 				     AML_FIELD_UPDATE_RULE_MASK)));
 			return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
 		}
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-			  "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
+			  "Mask %8.8X%8.8X, DatumOffset %X, Width %X, "
+			  "Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
 			  ACPI_FORMAT_UINT64(mask),
 			  field_datum_byte_offset,
 			  obj_desc->common_field.access_byte_width,
@@ -655,8 +657,9 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
 
 	/* Write the merged value */
 
-	status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
-					&merged_value, ACPI_WRITE);
+	status =
+	    acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
+				   &merged_value, ACPI_WRITE);
 
 	return_ACPI_STATUS(status);
 }
@@ -764,8 +767,9 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 		/* Get next input datum from the field */
 
 		field_offset += obj_desc->common_field.access_byte_width;
-		status = acpi_ex_field_datum_io(obj_desc, field_offset,
-						&raw_datum, ACPI_READ);
+		status =
+		    acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum,
+					   ACPI_READ);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
@@ -858,6 +862,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 	new_buffer = NULL;
 	required_length =
 	    ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length);
+
 	/*
 	 * We must have a buffer that is at least as long as the field
 	 * we are writing to. This is because individual fields are
@@ -932,9 +937,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 		/* Write merged datum to the target field */
 
 		merged_datum &= mask;
-		status = acpi_ex_write_with_update_rule(obj_desc, mask,
-							merged_datum,
-							field_offset);
+		status =
+		    acpi_ex_write_with_update_rule(obj_desc, mask, merged_datum,
+						   field_offset);
 		if (ACPI_FAILURE(status)) {
 			goto exit;
 		}
@@ -990,9 +995,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 	/* Write the last datum to the field */
 
 	merged_datum &= mask;
-	status = acpi_ex_write_with_update_rule(obj_desc,
-						mask, merged_datum,
-						field_offset);
+	status =
+	    acpi_ex_write_with_update_rule(obj_desc, mask, merged_datum,
+					   field_offset);
 
 exit:
 	/* Free temporary buffer if we used one */
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index d02afece0f10..f598b3948c17 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -98,9 +98,9 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
 
 		default:
 
-			ACPI_ERROR((AE_INFO, "Unknown Reference Class 0x%2.2X",
+			ACPI_ERROR((AE_INFO, "Invalid Reference Class 0x%2.2X",
 				    obj_desc->reference.class));
-			return_ACPI_STATUS(AE_AML_INTERNAL);
+			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 		}
 		break;
 
@@ -247,6 +247,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 	union acpi_operand_object *local_operand1 = operand1;
 	union acpi_operand_object *return_desc;
 	char *new_buf;
+	const char *type_string;
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(ex_do_concatenate);
@@ -266,9 +267,41 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 		break;
 
 	case ACPI_TYPE_STRING:
+		/*
+		 * Per the ACPI spec, Concatenate only supports int/str/buf.
+		 * However, we support all objects here as an extension.
+		 * This improves the usefulness of the Printf() macro.
+		 * 12/2015.
+		 */
+		switch (operand1->common.type) {
+		case ACPI_TYPE_INTEGER:
+		case ACPI_TYPE_STRING:
+		case ACPI_TYPE_BUFFER:
+
+			status =
+			    acpi_ex_convert_to_string(operand1, &local_operand1,
+						      ACPI_IMPLICIT_CONVERT_HEX);
+			break;
+
+		default:
+			/*
+			 * Just emit a string containing the object type.
+			 */
+			type_string =
+			    acpi_ut_get_type_name(operand1->common.type);
+
+			local_operand1 = acpi_ut_create_string_object(((acpi_size) strlen(type_string) + 9));	/* 9 For "[Object]" */
+			if (!local_operand1) {
+				status = AE_NO_MEMORY;
+				goto cleanup;
+			}
 
-		status = acpi_ex_convert_to_string(operand1, &local_operand1,
-						   ACPI_IMPLICIT_CONVERT_HEX);
+			strcpy(local_operand1->string.pointer, "[");
+			strcat(local_operand1->string.pointer, type_string);
+			strcat(local_operand1->string.pointer, " Object]");
+			status = AE_OK;
+			break;
+		}
 		break;
 
 	case ACPI_TYPE_BUFFER:
@@ -347,8 +380,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 		/* Concatenate the strings */
 
 		strcpy(new_buf, operand0->string.pointer);
-		strcpy(new_buf + operand0->string.length,
-		       local_operand1->string.pointer);
+		strcat(new_buf, local_operand1->string.pointer);
 		break;
 
 	case ACPI_TYPE_BUFFER:
@@ -591,8 +623,9 @@ acpi_ex_do_logical_op(u16 opcode,
 
 	case ACPI_TYPE_STRING:
 
-		status = acpi_ex_convert_to_string(operand1, &local_operand1,
-						   ACPI_IMPLICIT_CONVERT_HEX);
+		status =
+		    acpi_ex_convert_to_string(operand1, &local_operand1,
+					      ACPI_IMPLICIT_CONVERT_HEX);
 		break;
 
 	case ACPI_TYPE_BUFFER:
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index 472030f2b5bb..843c60ae91f6 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -185,8 +185,9 @@ acpi_ex_acquire_mutex_object(u16 timeout,
 	if (obj_desc == acpi_gbl_global_lock_mutex) {
 		status = acpi_ev_acquire_global_lock(timeout);
 	} else {
-		status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex,
-						   timeout);
+		status =
+		    acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex,
+					      timeout);
 	}
 
 	if (ACPI_FAILURE(status)) {
@@ -243,20 +244,30 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 	}
 
 	/*
-	 * Current sync level must be less than or equal to the sync level of the
-	 * mutex. This mechanism provides some deadlock prevention
+	 * Current sync level must be less than or equal to the sync level
+	 * of the mutex. This mechanism provides some deadlock prevention.
 	 */
 	if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) {
 		ACPI_ERROR((AE_INFO,
-			    "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%u)",
+			    "Cannot acquire Mutex [%4.4s], "
+			    "current SyncLevel is too large (%u)",
 			    acpi_ut_get_node_name(obj_desc->mutex.node),
 			    walk_state->thread->current_sync_level));
 		return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
 	}
 
-	status = acpi_ex_acquire_mutex_object((u16) time_desc->integer.value,
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Acquiring: Mutex SyncLevel %u, Thread SyncLevel %u, "
+			  "Depth %u TID %p\n",
+			  obj_desc->mutex.sync_level,
+			  walk_state->thread->current_sync_level,
+			  obj_desc->mutex.acquisition_depth,
+			  walk_state->thread));
+
+	status = acpi_ex_acquire_mutex_object((u16)time_desc->integer.value,
 					      obj_desc,
 					      walk_state->thread->thread_id);
+
 	if (ACPI_SUCCESS(status) && obj_desc->mutex.acquisition_depth == 1) {
 
 		/* Save Thread object, original/current sync levels */
@@ -272,6 +283,12 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 		acpi_ex_link_mutex(obj_desc, walk_state->thread);
 	}
 
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Acquired: Mutex SyncLevel %u, Thread SyncLevel %u, Depth %u\n",
+			  obj_desc->mutex.sync_level,
+			  walk_state->thread->current_sync_level,
+			  obj_desc->mutex.acquisition_depth));
+
 	return_ACPI_STATUS(status);
 }
 
@@ -356,9 +373,9 @@ acpi_status
 acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 		      struct acpi_walk_state *walk_state)
 {
-	acpi_status status = AE_OK;
 	u8 previous_sync_level;
 	struct acpi_thread_state *owner_thread;
+	acpi_status status = AE_OK;
 
 	ACPI_FUNCTION_TRACE(ex_release_mutex);
 
@@ -409,7 +426,8 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 	 */
 	if (obj_desc->mutex.sync_level != owner_thread->current_sync_level) {
 		ACPI_ERROR((AE_INFO,
-			    "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %u current %u",
+			    "Cannot release Mutex [%4.4s], SyncLevel mismatch: "
+			    "mutex %u current %u",
 			    acpi_ut_get_node_name(obj_desc->mutex.node),
 			    obj_desc->mutex.sync_level,
 			    walk_state->thread->current_sync_level));
@@ -424,6 +442,15 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 	previous_sync_level =
 	    owner_thread->acquired_mutex_list->mutex.original_sync_level;
 
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Releasing: Object SyncLevel %u, Thread SyncLevel %u, "
+			  "Prev SyncLevel %u, Depth %u TID %p\n",
+			  obj_desc->mutex.sync_level,
+			  walk_state->thread->current_sync_level,
+			  previous_sync_level,
+			  obj_desc->mutex.acquisition_depth,
+			  walk_state->thread));
+
 	status = acpi_ex_release_mutex_object(obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
@@ -436,6 +463,14 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 		owner_thread->current_sync_level = previous_sync_level;
 	}
 
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+			  "Released: Object SyncLevel %u, Thread SyncLevel, %u, "
+			  "Prev SyncLevel %u, Depth %u\n",
+			  obj_desc->mutex.sync_level,
+			  walk_state->thread->current_sync_level,
+			  previous_sync_level,
+			  obj_desc->mutex.acquisition_depth));
+
 	return_ACPI_STATUS(status);
 }
 
@@ -462,21 +497,17 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
 	union acpi_operand_object *next = thread->acquired_mutex_list;
 	union acpi_operand_object *obj_desc;
 
-	ACPI_FUNCTION_NAME(ex_release_all_mutexes);
+	ACPI_FUNCTION_TRACE(ex_release_all_mutexes);
 
 	/* Traverse the list of owned mutexes, releasing each one */
 
 	while (next) {
 		obj_desc = next;
-		next = obj_desc->mutex.next;
-
-		obj_desc->mutex.prev = NULL;
-		obj_desc->mutex.next = NULL;
-		obj_desc->mutex.acquisition_depth = 0;
-
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "Force-releasing held mutex: %p\n",
-				  obj_desc));
+				  "Mutex [%4.4s] force-release, SyncLevel %u Depth %u\n",
+				  obj_desc->mutex.node->name.ascii,
+				  obj_desc->mutex.sync_level,
+				  obj_desc->mutex.acquisition_depth));
 
 		/* Release the mutex, special case for Global Lock */
 
@@ -489,14 +520,21 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
 			acpi_os_release_mutex(obj_desc->mutex.os_mutex);
 		}
 
-		/* Mark mutex unowned */
-
-		obj_desc->mutex.owner_thread = NULL;
-		obj_desc->mutex.thread_id = 0;
-
 		/* Update Thread sync_level (Last mutex is the important one) */
 
 		thread->current_sync_level =
 		    obj_desc->mutex.original_sync_level;
+
+		/* Mark mutex unowned */
+
+		next = obj_desc->mutex.next;
+
+		obj_desc->mutex.prev = NULL;
+		obj_desc->mutex.next = NULL;
+		obj_desc->mutex.acquisition_depth = 0;
+		obj_desc->mutex.owner_thread = NULL;
+		obj_desc->mutex.thread_id = 0;
 	}
+
+	return_VOID;
 }
diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c
index 20e87813c7d7..b2e911a35866 100644
--- a/drivers/acpi/acpica/exnames.c
+++ b/drivers/acpi/acpica/exnames.c
@@ -164,8 +164,8 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
 	ACPI_FUNCTION_TRACE(ex_name_segment);
 
 	/*
-	 * If first character is a digit, then we know that we aren't looking at a
-	 * valid name segment
+	 * If first character is a digit, then we know that we aren't looking
+	 * at a valid name segment
 	 */
 	char_buf[0] = *aml_address;
 
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index 77930683ab7d..efe7ac319f65 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -484,22 +484,26 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
 	case AML_TO_DECSTRING_OP:	/* to_decimal_string (Data, Result) */
 
-		status = acpi_ex_convert_to_string(operand[0], &return_desc,
-						   ACPI_EXPLICIT_CONVERT_DECIMAL);
+		status =
+		    acpi_ex_convert_to_string(operand[0], &return_desc,
+					      ACPI_EXPLICIT_CONVERT_DECIMAL);
 		if (return_desc == operand[0]) {
 
 			/* No conversion performed, add ref to handle return value */
+
 			acpi_ut_add_reference(return_desc);
 		}
 		break;
 
 	case AML_TO_HEXSTRING_OP:	/* to_hex_string (Data, Result) */
 
-		status = acpi_ex_convert_to_string(operand[0], &return_desc,
-						   ACPI_EXPLICIT_CONVERT_HEX);
+		status =
+		    acpi_ex_convert_to_string(operand[0], &return_desc,
+					      ACPI_EXPLICIT_CONVERT_HEX);
 		if (return_desc == operand[0]) {
 
 			/* No conversion performed, add ref to handle return value */
+
 			acpi_ut_add_reference(return_desc);
 		}
 		break;
@@ -510,17 +514,20 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		if (return_desc == operand[0]) {
 
 			/* No conversion performed, add ref to handle return value */
+
 			acpi_ut_add_reference(return_desc);
 		}
 		break;
 
 	case AML_TO_INTEGER_OP:	/* to_integer (Data, Result) */
 
-		status = acpi_ex_convert_to_integer(operand[0], &return_desc,
-						    ACPI_ANY_BASE);
+		status =
+		    acpi_ex_convert_to_integer(operand[0], &return_desc,
+					       ACPI_ANY_BASE);
 		if (return_desc == operand[0]) {
 
 			/* No conversion performed, add ref to handle return value */
+
 			acpi_ut_add_reference(return_desc);
 		}
 		break;
@@ -679,7 +686,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		status = acpi_ex_store(return_desc, operand[0], walk_state);
 		break;
 
-	case AML_TYPE_OP:	/* object_type (source_object) */
+	case AML_OBJECT_TYPE_OP:	/* object_type (source_object) */
 		/*
 		 * Note: The operand is not resolved at this point because we want to
 		 * get the associated object, not its value. For example, we don't
@@ -713,9 +720,9 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
 		/* Get the base object */
 
-		status = acpi_ex_resolve_multiple(walk_state,
-						  operand[0], &type,
-						  &temp_desc);
+		status =
+		    acpi_ex_resolve_multiple(walk_state, operand[0], &type,
+					     &temp_desc);
 		if (ACPI_FAILURE(status)) {
 			goto cleanup;
 		}
@@ -759,8 +766,10 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		default:
 
 			ACPI_ERROR((AE_INFO,
-				    "Operand must be Buffer/Integer/String/Package - found type %s",
+				    "Operand must be Buffer/Integer/String/Package"
+				    " - found type %s",
 				    acpi_ut_get_type_name(type)));
+
 			status = AE_AML_OPERAND_TYPE;
 			goto cleanup;
 		}
@@ -981,6 +990,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 						    "Unknown Index TargetType 0x%X in reference object %p",
 						    operand[0]->reference.
 						    target_type, operand[0]));
+
 					status = AE_AML_OPERAND_TYPE;
 					goto cleanup;
 				}
@@ -1050,6 +1060,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index b8944ebb1081..6dad2ca1c8c9 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -199,6 +199,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
@@ -299,8 +300,9 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 
 	case AML_CONCAT_OP:	/* Concatenate (Data1, Data2, Result) */
 
-		status = acpi_ex_do_concatenate(operand[0], operand[1],
-						&return_desc, walk_state);
+		status =
+		    acpi_ex_do_concatenate(operand[0], operand[1], &return_desc,
+					   walk_state);
 		break;
 
 	case AML_TO_STRING_OP:	/* to_string (Buffer, Length, Result) (ACPI 2.0) */
@@ -345,8 +347,9 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 
 		/* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
 
-		status = acpi_ex_concat_template(operand[0], operand[1],
-						 &return_desc, walk_state);
+		status =
+		    acpi_ex_concat_template(operand[0], operand[1],
+					    &return_desc, walk_state);
 		break;
 
 	case AML_INDEX_OP:	/* Index (Source Index Result) */
@@ -553,6 +556,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index fa100b3b92ee..27fb0172fca2 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -95,10 +95,11 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 	case AML_FATAL_OP:	/* Fatal (fatal_type fatal_code fatal_arg) */
 
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
-				  (u32) operand[0]->integer.value,
-				  (u32) operand[1]->integer.value,
-				  (u32) operand[2]->integer.value));
+				  "FatalOp: Type %X Code %X Arg %X "
+				  "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
+				  (u32)operand[0]->integer.value,
+				  (u32)operand[1]->integer.value,
+				  (u32)operand[2]->integer.value));
 
 		fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
 		if (fatal) {
@@ -131,6 +132,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
@@ -193,7 +195,8 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 		/* Truncate request if larger than the actual String/Buffer */
 
 		else if ((index + length) > operand[0]->string.length) {
-			length = (acpi_size) operand[0]->string.length -
+			length =
+			    (acpi_size) operand[0]->string.length -
 			    (acpi_size) index;
 		}
 
@@ -237,8 +240,8 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 			/* We have a buffer, copy the portion requested */
 
-			memcpy(buffer, operand[0]->string.pointer + index,
-			       length);
+			memcpy(buffer,
+			       operand[0]->string.pointer + index, length);
 		}
 
 		/* Set the length of the new String/Buffer */
@@ -255,6 +258,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
@@ -270,12 +274,11 @@ cleanup:
 	if (ACPI_FAILURE(status) || walk_state->result_obj) {
 		acpi_ut_remove_reference(return_desc);
 		walk_state->result_obj = NULL;
-	}
+	} else {
+		/* Set the return object and exit */
 
-	/* Set the return object and exit */
-
-	else {
 		walk_state->result_obj = return_desc;
 	}
+
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c
index c930edda3f65..7efc9f47ffb9 100644
--- a/drivers/acpi/acpica/exoparg6.c
+++ b/drivers/acpi/acpica/exoparg6.c
@@ -310,6 +310,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
 
 		ACPI_ERROR((AE_INFO, "Unknown AML opcode 0x%X",
 			    walk_state->opcode));
+
 		status = AE_AML_BAD_OPCODE;
 		goto cleanup;
 	}
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 4c2836dc825b..1f111cc94c00 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * Module Name: exprep - ACPI AML (p-code) execution - field prep utilities
+ * Module Name: exprep - ACPI AML field prep utilities
  *
  *****************************************************************************/
 
@@ -103,8 +103,10 @@ acpi_ex_generate_access(u32 field_bit_offset,
 	/* Round Field start offset and length to "minimal" byte boundaries */
 
 	field_byte_offset = ACPI_DIV_8(ACPI_ROUND_DOWN(field_bit_offset, 8));
-	field_byte_end_offset = ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length +
-							 field_bit_offset, 8));
+
+	field_byte_end_offset =
+	    ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length + field_bit_offset, 8));
+
 	field_byte_length = field_byte_end_offset - field_byte_offset;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
@@ -159,7 +161,8 @@ acpi_ex_generate_access(u32 field_bit_offset,
 
 			if (accesses <= 1) {
 				ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-						  "Entire field can be accessed with one operation of size %u\n",
+						  "Entire field can be accessed "
+						  "with one operation of size %u\n",
 						  access_byte_width));
 				return_VALUE(access_byte_width);
 			}
@@ -202,6 +205,7 @@ acpi_ex_generate_access(u32 field_bit_offset,
 	 */
 	ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
 			  "Cannot access field in one operation, using width 8\n"));
+
 	return_VALUE(8);
 }
 #endif				/* ACPI_UNDER_DEVELOPMENT */
@@ -281,6 +285,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
 		/* Invalid field access type */
 
 		ACPI_ERROR((AE_INFO, "Unknown field access type 0x%X", access));
+
 		return_UINT32(0);
 	}
 
@@ -354,8 +359,8 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
 	 * For all other access types (Byte, Word, Dword, Qword), the Bitwidth is
 	 * the same (equivalent) as the byte_alignment.
 	 */
-	access_bit_width = acpi_ex_decode_field_access(obj_desc, field_flags,
-						       &byte_alignment);
+	access_bit_width =
+	    acpi_ex_decode_field_access(obj_desc, field_flags, &byte_alignment);
 	if (!access_bit_width) {
 		return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
 	}
@@ -595,7 +600,8 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 					  access_byte_width);
 
 		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
-				  "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n",
+				  "IndexField: BitOff %X, Off %X, Value %X, "
+				  "Gran %X, Index %p, Data %p\n",
 				  obj_desc->index_field.start_field_bit_offset,
 				  obj_desc->index_field.base_byte_offset,
 				  obj_desc->index_field.value,
@@ -615,8 +621,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 	 * Store the constructed descriptor (obj_desc) into the parent Node,
 	 * preserving the current type of that named_obj.
 	 */
-	status = acpi_ns_attach_object(info->field_node, obj_desc,
-				       acpi_ns_get_type(info->field_node));
+	status =
+	    acpi_ns_attach_object(info->field_node, obj_desc,
+				  acpi_ns_get_type(info->field_node));
 
 	ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
 			  "Set NamedObj %p [%4.4s], ObjDesc %p\n",
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index b4a5e44c00dd..1851a307544a 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -392,7 +392,8 @@ acpi_ex_pci_config_space_handler(u32 function,
 	pci_register = (u16) (u32) address;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Pci-Config %u (%u) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
+			  "Pci-Config %u (%u) Seg(%04x) Bus(%04x) "
+			  "Dev(%04x) Func(%04x) Reg(%04x)\n",
 			  function, bit_width, pci_id->segment, pci_id->bus,
 			  pci_id->device, pci_id->function, pci_register));
 
@@ -400,14 +401,16 @@ acpi_ex_pci_config_space_handler(u32 function,
 	case ACPI_READ:
 
 		*value = 0;
-		status = acpi_os_read_pci_configuration(pci_id, pci_register,
-							value, bit_width);
+		status =
+		    acpi_os_read_pci_configuration(pci_id, pci_register, value,
+						   bit_width);
 		break;
 
 	case ACPI_WRITE:
 
-		status = acpi_os_write_pci_configuration(pci_id, pci_register,
-							 *value, bit_width);
+		status =
+		    acpi_os_write_pci_configuration(pci_id, pci_register,
+						    *value, bit_width);
 		break;
 
 	default:
diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c
index 1b372ef69308..6793dcc8a946 100644
--- a/drivers/acpi/acpica/exresnte.c
+++ b/drivers/acpi/acpica/exresnte.c
@@ -112,7 +112,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
 	/*
 	 * Several object types require no further processing:
-	 * 1) Device/Thermal objects don't have a "real" subobject, return the Node
+	 * 1) Device/Thermal objects don't have a "real" subobject, return Node
 	 * 2) Method locals and arguments have a pseudo-Node
 	 * 3) 10/2007: Added method type to assist with Package construction.
 	 */
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index a1afe1a1e7c2..7f9260b129fc 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -217,7 +217,8 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
 					 * the package, can't dereference it
 					 */
 					ACPI_ERROR((AE_INFO,
-						    "Attempt to dereference an Index to NULL package element Idx=%p",
+						    "Attempt to dereference an Index to "
+						    "NULL package element Idx=%p",
 						    stack_desc));
 					status = AE_AML_UNINITIALIZED_ELEMENT;
 				}
@@ -361,10 +362,9 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 
 		if (type == ACPI_TYPE_LOCAL_ALIAS) {
 			type = ((struct acpi_namespace_node *)obj_desc)->type;
-			obj_desc =
-			    acpi_ns_get_attached_object((struct
-							 acpi_namespace_node *)
-							obj_desc);
+			obj_desc = acpi_ns_get_attached_object((struct
+								acpi_namespace_node
+								*)obj_desc);
 		}
 
 		if (!obj_desc) {
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index 424442d50b5e..861453e58555 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -90,8 +90,8 @@ acpi_ex_check_object_type(acpi_object_type type_needed,
 		 * specification, a store to a constant is a noop.)
 		 */
 		if ((this_type == ACPI_TYPE_INTEGER) &&
-		    (((union acpi_operand_object *)object)->common.
-		     flags & AOPOBJ_AML_CONSTANT)) {
+		    (((union acpi_operand_object *)object)->common.flags &
+		     AOPOBJ_AML_CONSTANT)) {
 			return (AE_OK);
 		}
 	}
@@ -196,10 +196,10 @@ acpi_ex_resolve_operands(u16 opcode,
 			 * thus, the attached object is always the aliased namespace node
 			 */
 			if (object_type == ACPI_TYPE_LOCAL_ALIAS) {
-				obj_desc =
-				    acpi_ns_get_attached_object((struct
-								 acpi_namespace_node
-								 *)obj_desc);
+				obj_desc = acpi_ns_get_attached_object((struct
+									acpi_namespace_node
+									*)
+								       obj_desc);
 				*stack_ptr = obj_desc;
 				object_type =
 				    ((struct acpi_namespace_node *)obj_desc)->
@@ -285,8 +285,8 @@ acpi_ex_resolve_operands(u16 opcode,
 		case ARGI_REF_OR_STRING:	/* Can be a String or Reference */
 
 			if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
-			     ACPI_DESC_TYPE_OPERAND)
-			    && (obj_desc->common.type == ACPI_TYPE_STRING)) {
+			     ACPI_DESC_TYPE_OPERAND) &&
+			    (obj_desc->common.type == ACPI_TYPE_STRING)) {
 				/*
 				 * String found - the string references a named object and
 				 * must be resolved to a node
@@ -465,8 +465,9 @@ acpi_ex_resolve_operands(u16 opcode,
 			 * But we can implicitly convert from a BUFFER or INTEGER
 			 * aka - "Implicit Source Operand Conversion"
 			 */
-			status = acpi_ex_convert_to_string(obj_desc, stack_ptr,
-							   ACPI_IMPLICIT_CONVERT_HEX);
+			status =
+			    acpi_ex_convert_to_string(obj_desc, stack_ptr,
+						      ACPI_IMPLICIT_CONVERT_HEX);
 			if (ACPI_FAILURE(status)) {
 				if (status == AE_TYPE) {
 					ACPI_ERROR((AE_INFO,
@@ -597,8 +598,10 @@ acpi_ex_resolve_operands(u16 opcode,
 
 		case ARGI_REGION_OR_BUFFER:	/* Used by Load() only */
 
-			/* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */
-
+			/*
+			 * Need an operand of type REGION or a BUFFER
+			 * (which could be a resolved region field)
+			 */
 			switch (obj_desc->common.type) {
 			case ACPI_TYPE_BUFFER:
 			case ACPI_TYPE_REGION:
@@ -640,9 +643,9 @@ acpi_ex_resolve_operands(u16 opcode,
 
 				if (acpi_gbl_enable_interpreter_slack) {
 					/*
-					 * Enable original behavior of Store(), allowing any and all
-					 * objects as the source operand. The ACPI spec does not
-					 * allow this, however.
+					 * Enable original behavior of Store(), allowing any
+					 * and all objects as the source operand. The ACPI
+					 * spec does not allow this, however.
 					 */
 					break;
 				}
@@ -655,7 +658,8 @@ acpi_ex_resolve_operands(u16 opcode,
 				}
 
 				ACPI_ERROR((AE_INFO,
-					    "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p",
+					    "Needed Integer/Buffer/String/Package/Ref/Ddb]"
+					    ", found [%s] %p",
 					    acpi_ut_get_object_type_name
 					    (obj_desc), obj_desc));
 
@@ -678,9 +682,10 @@ acpi_ex_resolve_operands(u16 opcode,
 		 * Make sure that the original object was resolved to the
 		 * required object type (Simple cases only).
 		 */
-		status = acpi_ex_check_object_type(type_needed,
-						   (*stack_ptr)->common.type,
-						   *stack_ptr);
+		status =
+		    acpi_ex_check_object_type(type_needed,
+					      (*stack_ptr)->common.type,
+					      *stack_ptr);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index c076e9100d66..d3afbcbe7886 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -467,7 +467,8 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 		case ACPI_TYPE_THERMAL:
 
 			ACPI_ERROR((AE_INFO,
-				    "Target must be [Buffer/Integer/String/Reference], found [%s] (%4.4s)",
+				    "Target must be [Buffer/Integer/String/Reference]"
+				    ", found [%s] (%4.4s)",
 				    acpi_ut_get_type_name(node->type),
 				    node->name.ascii));
 
@@ -504,8 +505,9 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 			 * an implicit conversion, as per the ACPI specification.
 			 * A direct store is performed instead.
 			 */
-			status = acpi_ex_store_direct_to_node(source_desc, node,
-							      walk_state);
+			status =
+			    acpi_ex_store_direct_to_node(source_desc, node,
+							 walk_state);
 			break;
 		}
 
@@ -528,8 +530,9 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 			 * store has been performed such that the node/object type
 			 * has been changed.
 			 */
-			status = acpi_ns_attach_object(node, new_desc,
-						       new_desc->common.type);
+			status =
+			    acpi_ns_attach_object(node, new_desc,
+						  new_desc->common.type);
 
 			ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 					  "Store type [%s] into [%s] via Convert/Attach\n",
@@ -563,8 +566,8 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 		 * operator. (Note, for this default case, all normal
 		 * Store/Target operations exited above with an error).
 		 */
-		status = acpi_ex_store_direct_to_node(source_desc, node,
-						      walk_state);
+		status =
+		    acpi_ex_store_direct_to_node(source_desc, node, walk_state);
 		break;
 	}
 
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c
index e1d4f4d51b97..ad3bc92af2e6 100644
--- a/drivers/acpi/acpica/exstorob.c
+++ b/drivers/acpi/acpica/exstorob.c
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * Module Name: exstorob - AML Interpreter object store support, store to object
+ * Module Name: exstorob - AML object store support, store to object
  *
  *****************************************************************************/
 
@@ -203,8 +203,9 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
 			ACPI_FREE(target_desc->string.pointer);
 		}
 
-		target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size)
-								   length + 1);
+		target_desc->string.pointer =
+		    ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
+
 		if (!target_desc->string.pointer) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index 05450656fe3d..7c91c1f799a5 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -78,7 +78,6 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
 		/* We must wait, so unlock the interpreter */
 
 		acpi_ex_exit_interpreter();
-
 		status = acpi_os_wait_semaphore(semaphore, 1, timeout);
 
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -124,7 +123,6 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
 		/* We must wait, so unlock the interpreter */
 
 		acpi_ex_exit_interpreter();
-
 		status = acpi_os_acquire_mutex(mutex, timeout);
 
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
@@ -169,8 +167,8 @@ acpi_status acpi_ex_system_do_stall(u32 how_long)
 		 * (ACPI specifies 100 usec as max, but this gives some slack in
 		 * order to support existing BIOSs)
 		 */
-		ACPI_ERROR((AE_INFO, "Time parameter is too large (%u)",
-			    how_long));
+		ACPI_ERROR((AE_INFO,
+			    "Time parameter is too large (%u)", how_long));
 		status = AE_AML_OPERAND_VALUE;
 	} else {
 		acpi_os_stall(how_long);
diff --git a/drivers/acpi/acpica/extrace.c b/drivers/acpi/acpica/extrace.c
new file mode 100644
index 000000000000..e4a185eece8a
--- /dev/null
+++ b/drivers/acpi/acpica/extrace.c
@@ -0,0 +1,377 @@
+/******************************************************************************
+ *
+ * Module Name: extrace - Support for interpreter execution tracing
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+
+#define _COMPONENT          ACPI_EXECUTER
+ACPI_MODULE_NAME("extrace")
+
+static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
+
+/* Local prototypes */
+
+#ifdef ACPI_DEBUG_OUTPUT
+static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_interpreter_trace_enabled
+ *
+ * PARAMETERS:  name                - Whether method name should be matched,
+ *                                    this should be checked before starting
+ *                                    the tracer
+ *
+ * RETURN:      TRUE if interpreter trace is enabled.
+ *
+ * DESCRIPTION: Check whether interpreter trace is enabled
+ *
+ ******************************************************************************/
+
+static u8 acpi_ex_interpreter_trace_enabled(char *name)
+{
+
+	/* Check if tracing is enabled */
+
+	if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
+		return (FALSE);
+	}
+
+	/*
+	 * Check if tracing is filtered:
+	 *
+	 * 1. If the tracer is started, acpi_gbl_trace_method_object should have
+	 *    been filled by the trace starter
+	 * 2. If the tracer is not started, acpi_gbl_trace_method_name should be
+	 *    matched if it is specified
+	 * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
+	 *    not be cleared by the trace stopper during the first match
+	 */
+	if (acpi_gbl_trace_method_object) {
+		return (TRUE);
+	}
+
+	if (name &&
+	    (acpi_gbl_trace_method_name &&
+	     strcmp(acpi_gbl_trace_method_name, name))) {
+		return (FALSE);
+	}
+
+	if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
+	    !acpi_gbl_trace_method_name) {
+		return (FALSE);
+	}
+
+	return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_get_trace_event_name
+ *
+ * PARAMETERS:  type            - Trace event type
+ *
+ * RETURN:      Trace event name.
+ *
+ * DESCRIPTION: Used to obtain the full trace event name.
+ *
+ ******************************************************************************/
+
+#ifdef ACPI_DEBUG_OUTPUT
+
+static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
+{
+
+	switch (type) {
+	case ACPI_TRACE_AML_METHOD:
+
+		return "Method";
+
+	case ACPI_TRACE_AML_OPCODE:
+
+		return "Opcode";
+
+	case ACPI_TRACE_AML_REGION:
+
+		return "Region";
+
+	default:
+
+		return "";
+	}
+}
+
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_trace_point
+ *
+ * PARAMETERS:  type                - Trace event type
+ *              begin               - TRUE if before execution
+ *              aml                 - Executed AML address
+ *              pathname            - Object path
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Internal interpreter execution trace.
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_trace_point(acpi_trace_event_type type,
+		    u8 begin, u8 *aml, char *pathname)
+{
+
+	ACPI_FUNCTION_NAME(ex_trace_point);
+
+	if (pathname) {
+		ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+				  "%s %s [0x%p:%s] execution.\n",
+				  acpi_ex_get_trace_event_name(type),
+				  begin ? "Begin" : "End", aml, pathname));
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+				  "%s %s [0x%p] execution.\n",
+				  acpi_ex_get_trace_event_name(type),
+				  begin ? "Begin" : "End", aml));
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_start_trace_method
+ *
+ * PARAMETERS:  method_node         - Node of the method
+ *              obj_desc            - The method object
+ *              walk_state          - current state, NULL if not yet executing
+ *                                    a method.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Start control method execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
+			   union acpi_operand_object *obj_desc,
+			   struct acpi_walk_state *walk_state)
+{
+	acpi_status status;
+	char *pathname = NULL;
+	u8 enabled = FALSE;
+
+	ACPI_FUNCTION_NAME(ex_start_trace_method);
+
+	if (method_node) {
+		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	enabled = acpi_ex_interpreter_trace_enabled(pathname);
+	if (enabled && !acpi_gbl_trace_method_object) {
+		acpi_gbl_trace_method_object = obj_desc;
+		acpi_gbl_original_dbg_level = acpi_dbg_level;
+		acpi_gbl_original_dbg_layer = acpi_dbg_layer;
+		acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
+		acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
+
+		if (acpi_gbl_trace_dbg_level) {
+			acpi_dbg_level = acpi_gbl_trace_dbg_level;
+		}
+
+		if (acpi_gbl_trace_dbg_layer) {
+			acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
+		}
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+exit:
+	if (enabled) {
+		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
+				 obj_desc ? obj_desc->method.aml_start : NULL,
+				 pathname);
+	}
+
+	if (pathname) {
+		ACPI_FREE(pathname);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_stop_trace_method
+ *
+ * PARAMETERS:  method_node         - Node of the method
+ *              obj_desc            - The method object
+ *              walk_state          - current state, NULL if not yet executing
+ *                                    a method.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Stop control method execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
+			  union acpi_operand_object *obj_desc,
+			  struct acpi_walk_state *walk_state)
+{
+	acpi_status status;
+	char *pathname = NULL;
+	u8 enabled;
+
+	ACPI_FUNCTION_NAME(ex_stop_trace_method);
+
+	if (method_node) {
+		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		goto exit_path;
+	}
+
+	enabled = acpi_ex_interpreter_trace_enabled(NULL);
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+	if (enabled) {
+		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
+				 obj_desc ? obj_desc->method.aml_start : NULL,
+				 pathname);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		goto exit_path;
+	}
+
+	/* Check whether the tracer should be stopped */
+
+	if (acpi_gbl_trace_method_object == obj_desc) {
+
+		/* Disable further tracing if type is one-shot */
+
+		if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
+			acpi_gbl_trace_method_name = NULL;
+		}
+
+		acpi_dbg_level = acpi_gbl_original_dbg_level;
+		acpi_dbg_layer = acpi_gbl_original_dbg_layer;
+		acpi_gbl_trace_method_object = NULL;
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+exit_path:
+	if (pathname) {
+		ACPI_FREE(pathname);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_start_trace_opcode
+ *
+ * PARAMETERS:  op                  - The parser opcode object
+ *              walk_state          - current state, NULL if not yet executing
+ *                                    a method.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Start opcode execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_start_trace_opcode(union acpi_parse_object *op,
+			   struct acpi_walk_state *walk_state)
+{
+
+	ACPI_FUNCTION_NAME(ex_start_trace_opcode);
+
+	if (acpi_ex_interpreter_trace_enabled(NULL) &&
+	    (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
+		ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
+				 op->common.aml, op->common.aml_op_name);
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_stop_trace_opcode
+ *
+ * PARAMETERS:  op                  - The parser opcode object
+ *              walk_state          - current state, NULL if not yet executing
+ *                                    a method.
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Stop opcode execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
+			  struct acpi_walk_state *walk_state)
+{
+
+	ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
+
+	if (acpi_ex_interpreter_trace_enabled(NULL) &&
+	    (acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
+		ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
+				 op->common.aml, op->common.aml_op_name);
+	}
+}
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 30c3f464fda5..8ae7634bd7d2 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -167,8 +167,8 @@ u8 acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
 	if ((acpi_gbl_integer_byte_width == 4) &&
 	    (obj_desc->integer.value > (u64)ACPI_UINT32_MAX)) {
 		/*
-		 * We are executing in a 32-bit ACPI table.
-		 * Truncate the value to 32 bits by zeroing out the upper 32-bit field
+		 * We are executing in a 32-bit ACPI table. Truncate
+		 * the value to 32 bits by zeroing out the upper 32-bit field
 		 */
 		obj_desc->integer.value &= (u64)ACPI_UINT32_MAX;
 		return (TRUE);
@@ -323,7 +323,8 @@ void acpi_ex_eisa_id_to_string(char *out_string, u64 compressed_id)
 
 	if (compressed_id > ACPI_UINT32_MAX) {
 		ACPI_WARNING((AE_INFO,
-			      "Expected EISAID is larger than 32 bits: 0x%8.8X%8.8X, truncating",
+			      "Expected EISAID is larger than 32 bits: "
+			      "0x%8.8X%8.8X, truncating",
 			      ACPI_FORMAT_UINT64(compressed_id)));
 	}
 
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index e5599f610808..d0319a228ef7 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -117,8 +117,8 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 	/* Clear wake status (WAK_STS) */
 
-	status =
-	    acpi_write((u64)ACPI_X_WAKE_STATUS, &acpi_gbl_FADT.sleep_status);
+	status = acpi_write((u64)ACPI_X_WAKE_STATUS,
+			    &acpi_gbl_FADT.sleep_status);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 73cfa5947ff3..8272f966382a 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -187,9 +187,8 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
 	 */
 	register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
 
-	status = acpi_hw_write(register_bit,
-			       &gpe_register_info->status_address);
-
+	status =
+	    acpi_hw_write(register_bit, &gpe_register_info->status_address);
 	return (status);
 }
 
@@ -297,6 +296,7 @@ acpi_hw_gpe_enable_write(u8 enable_mask,
 	acpi_status status;
 
 	gpe_register_info->enable_mask = enable_mask;
+
 	status = acpi_hw_write(enable_mask, &gpe_register_info->enable_address);
 	return (status);
 }
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 7d21cae6d602..ac5b7f768d4b 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -80,8 +80,8 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 
 	/* Clear wake status */
 
-	status =
-	    acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, ACPI_CLEAR_STATUS);
+	status = acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS,
+					 ACPI_CLEAR_STATUS);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index 5f97468df8ff..b2e50d8007fe 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -504,11 +504,20 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 	 * Evaluate the \_Sx namespace object containing the register values
 	 * for this state
 	 */
-	info->relative_pathname =
-	    ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
+	info->relative_pathname = ACPI_CAST_PTR(char,
+						acpi_gbl_sleep_state_names
+						[sleep_state]);
+
 	status = acpi_ns_evaluate(info);
 	if (ACPI_FAILURE(status)) {
-		goto cleanup;
+		if (status == AE_NOT_FOUND) {
+
+			/* The _Sx states are optional, ignore NOT_FOUND */
+
+			goto final_cleanup;
+		}
+
+		goto warning_cleanup;
 	}
 
 	/* Must have a return object */
@@ -517,7 +526,7 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 		ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
 			    info->relative_pathname));
 		status = AE_AML_NO_RETURN_VALUE;
-		goto cleanup;
+		goto warning_cleanup;
 	}
 
 	/* Return object must be of type Package */
@@ -526,7 +535,7 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 		ACPI_ERROR((AE_INFO,
 			    "Sleep State return object is not a Package"));
 		status = AE_AML_OPERAND_TYPE;
-		goto cleanup1;
+		goto return_value_cleanup;
 	}
 
 	/*
@@ -570,16 +579,17 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 		break;
 	}
 
-cleanup1:
+return_value_cleanup:
 	acpi_ut_remove_reference(info->return_object);
 
-cleanup:
+warning_cleanup:
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
 				"While evaluating Sleep State [%s]",
 				info->relative_pathname));
 	}
 
+final_cleanup:
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index d62a61612b3f..1ce4efa1a2bd 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -52,9 +52,9 @@ ACPI_MODULE_NAME("hwxfsleep")
 /* Local prototypes */
 #if (!ACPI_REDUCED_HARDWARE)
 static acpi_status
-acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
-				    acpi_physical_address physical_address,
-				    acpi_physical_address physical_address64);
+acpi_hw_set_firmware_waking_vector(struct acpi_table_facs *facs,
+				   acpi_physical_address physical_address,
+				   acpi_physical_address physical_address64);
 #endif
 
 static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
@@ -79,22 +79,20 @@ static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
 
 /*
  * These functions are removed for the ACPI_REDUCED_HARDWARE case:
- *      acpi_set_firmware_waking_vectors
  *      acpi_set_firmware_waking_vector
- *      acpi_set_firmware_waking_vector64
  *      acpi_enter_sleep_state_s4bios
  */
 
 #if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
  *
- * FUNCTION:    acpi_hw_set_firmware_waking_vectors
+ * FUNCTION:    acpi_hw_set_firmware_waking_vector
  *
  * PARAMETERS:  facs                - Pointer to FACS table
  *              physical_address    - 32-bit physical address of ACPI real mode
- *                                    entry point.
+ *                                    entry point
  *              physical_address64  - 64-bit physical address of ACPI protected
- *                                    mode entry point.
+ *                                    mode entry point
  *
  * RETURN:      Status
  *
@@ -103,11 +101,11 @@ static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
  ******************************************************************************/
 
 static acpi_status
-acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
-				    acpi_physical_address physical_address,
-				    acpi_physical_address physical_address64)
+acpi_hw_set_firmware_waking_vector(struct acpi_table_facs *facs,
+				   acpi_physical_address physical_address,
+				   acpi_physical_address physical_address64)
 {
-	ACPI_FUNCTION_TRACE(acpi_hw_set_firmware_waking_vectors);
+	ACPI_FUNCTION_TRACE(acpi_hw_set_firmware_waking_vector);
 
 
 	/*
@@ -140,12 +138,12 @@ acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_set_firmware_waking_vectors
+ * FUNCTION:    acpi_set_firmware_waking_vector
  *
  * PARAMETERS:  physical_address    - 32-bit physical address of ACPI real mode
- *                                    entry point.
+ *                                    entry point
  *              physical_address64  - 64-bit physical address of ACPI protected
- *                                    mode entry point.
+ *                                    mode entry point
  *
  * RETURN:      Status
  *
@@ -154,79 +152,23 @@ acpi_hw_set_firmware_waking_vectors(struct acpi_table_facs *facs,
  ******************************************************************************/
 
 acpi_status
-acpi_set_firmware_waking_vectors(acpi_physical_address physical_address,
-				 acpi_physical_address physical_address64)
+acpi_set_firmware_waking_vector(acpi_physical_address physical_address,
+				acpi_physical_address physical_address64)
 {
 
-	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vectors);
+	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
 
 	if (acpi_gbl_FACS) {
-		(void)acpi_hw_set_firmware_waking_vectors(acpi_gbl_FACS,
-							  physical_address,
-							  physical_address64);
+		(void)acpi_hw_set_firmware_waking_vector(acpi_gbl_FACS,
+							 physical_address,
+							 physical_address64);
 	}
 
 	return_ACPI_STATUS(AE_OK);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vectors)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_set_firmware_waking_vector
- *
- * PARAMETERS:  physical_address    - 32-bit physical address of ACPI real mode
- *                                    entry point.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
- *
- ******************************************************************************/
-acpi_status acpi_set_firmware_waking_vector(u32 physical_address)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
-
-	status = acpi_set_firmware_waking_vectors((acpi_physical_address)
-						  physical_address, 0);
-
-	return_ACPI_STATUS(status);
-}
-
 ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
 
-#if ACPI_MACHINE_WIDTH == 64
-/*******************************************************************************
- *
- * FUNCTION:    acpi_set_firmware_waking_vector64
- *
- * PARAMETERS:  physical_address    - 64-bit physical address of ACPI protected
- *                                    mode entry point.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
- *              it exists in the table. This function is intended for use with
- *              64-bit host operating systems.
- *
- ******************************************************************************/
-acpi_status acpi_set_firmware_waking_vector64(u64 physical_address)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
-
-	status = acpi_set_firmware_waking_vectors(0,
-						  (acpi_physical_address)
-						  physical_address);
-
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
-#endif
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enter_sleep_state_s4bios
@@ -286,6 +228,7 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
+
 	} while (!in_value);
 
 	return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index da55a1c60da1..f21568ba325b 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -96,9 +96,9 @@ acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 		/* Extract each buffer byte to create the integer */
 
 		for (i = 0; i < original_object->buffer.length; i++) {
-			value |=
-			    ((u64)original_object->buffer.
-			     pointer[i] << (i * 8));
+			value |= ((u64)
+				  original_object->buffer.pointer[i] << (i *
+									 8));
 		}
 		break;
 
@@ -153,10 +153,9 @@ acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 				return (AE_NO_MEMORY);
 			}
 		} else {
-			status =
-			    acpi_ex_convert_to_string(original_object,
-						      &new_object,
-						      ACPI_IMPLICIT_CONVERT_HEX);
+			status = acpi_ex_convert_to_string(original_object,
+							   &new_object,
+							   ACPI_IMPLICIT_CONVERT_HEX);
 			if (ACPI_FAILURE(status)) {
 				return (status);
 			}
@@ -244,9 +243,8 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 
 		/* String-to-Buffer conversion. Simple data copy */
 
-		new_object =
-		    acpi_ut_create_buffer_object(original_object->string.
-						 length);
+		new_object = acpi_ut_create_buffer_object
+		    (original_object->string.length);
 		if (!new_object) {
 			return (AE_NO_MEMORY);
 		}
@@ -308,7 +306,8 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
  *
  * FUNCTION:    acpi_ns_convert_to_unicode
  *
- * PARAMETERS:  original_object     - ASCII String Object to be converted
+ * PARAMETERS:  scope               - Namespace node for the method/object
+ *              original_object     - ASCII String Object to be converted
  *              return_object       - Where the new converted object is returned
  *
  * RETURN:      Status. AE_OK if conversion was successful.
@@ -318,7 +317,8 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
  ******************************************************************************/
 
 acpi_status
-acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
+acpi_ns_convert_to_unicode(struct acpi_namespace_node * scope,
+			   union acpi_operand_object *original_object,
 			   union acpi_operand_object **return_object)
 {
 	union acpi_operand_object *new_object;
@@ -372,7 +372,8 @@ acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
  *
  * FUNCTION:    acpi_ns_convert_to_resource
  *
- * PARAMETERS:  original_object     - Object to be converted
+ * PARAMETERS:  scope               - Namespace node for the method/object
+ *              original_object     - Object to be converted
  *              return_object       - Where the new converted object is returned
  *
  * RETURN:      Status. AE_OK if conversion was successful
@@ -383,7 +384,8 @@ acpi_ns_convert_to_unicode(union acpi_operand_object *original_object,
  ******************************************************************************/
 
 acpi_status
-acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
+acpi_ns_convert_to_resource(struct acpi_namespace_node * scope,
+			    union acpi_operand_object *original_object,
 			    union acpi_operand_object **return_object)
 {
 	union acpi_operand_object *new_object;
@@ -444,3 +446,78 @@ acpi_ns_convert_to_resource(union acpi_operand_object *original_object,
 	*return_object = new_object;
 	return (AE_OK);
 }
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_to_reference
+ *
+ * PARAMETERS:  scope               - Namespace node for the method/object
+ *              original_object     - Object to be converted
+ *              return_object       - Where the new converted object is returned
+ *
+ * RETURN:      Status. AE_OK if conversion was successful
+ *
+ * DESCRIPTION: Attempt to convert a Integer object to a object_reference.
+ *              Buffer.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_convert_to_reference(struct acpi_namespace_node * scope,
+			     union acpi_operand_object *original_object,
+			     union acpi_operand_object **return_object)
+{
+	union acpi_operand_object *new_object = NULL;
+	acpi_status status;
+	struct acpi_namespace_node *node;
+	union acpi_generic_state scope_info;
+	char *name;
+
+	ACPI_FUNCTION_NAME(ns_convert_to_reference);
+
+	/* Convert path into internal presentation */
+
+	status =
+	    acpi_ns_internalize_name(original_object->string.pointer, &name);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Find the namespace node */
+
+	scope_info.scope.node =
+	    ACPI_CAST_PTR(struct acpi_namespace_node, scope);
+	status =
+	    acpi_ns_lookup(&scope_info, name, ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+			   ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
+			   NULL, &node);
+	if (ACPI_FAILURE(status)) {
+
+		/* Check if we are resolving a named reference within a package */
+
+		ACPI_ERROR_NAMESPACE(original_object->string.pointer, status);
+		goto error_exit;
+	}
+
+	/* Create and init a new internal ACPI object */
+
+	new_object = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
+	if (!new_object) {
+		status = AE_NO_MEMORY;
+		goto error_exit;
+	}
+	new_object->reference.node = node;
+	new_object->reference.object = node->object;
+	new_object->reference.class = ACPI_REFCLASS_NAME;
+
+	/*
+	 * Increase reference of the object if needed (the object is likely a
+	 * null for device nodes).
+	 */
+	acpi_ut_add_reference(node->object);
+
+error_exit:
+	ACPI_FREE(name);
+	*return_object = new_object;
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 37aa5c45ca4b..bc5ff358b2a7 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -539,11 +539,13 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 				acpi_os_printf
 				    ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
 				     obj_type);
+
 				bytes_to_dump = 32;
 			} else {
 				acpi_os_printf
 				    ("(Pointer to ACPI Object type %.2X [%s])\n",
 				     obj_type, acpi_ut_get_type_name(obj_type));
+
 				bytes_to_dump =
 				    sizeof(union acpi_operand_object);
 			}
@@ -573,6 +575,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 			 */
 			bytes_to_dump = obj_desc->string.length;
 			obj_desc = (void *)obj_desc->string.pointer;
+
 			acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 				       obj_desc, bytes_to_dump);
 			ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
@@ -717,7 +720,7 @@ acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 		return (AE_OK);
 	}
 
-	pathname = acpi_ns_get_external_pathname(node);
+	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
 
 	path_indent = 1;
 	if (level <= max_level) {
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 7eba578d36f3..15e0b2ec5d65 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -135,7 +135,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 
 	/* Get the full pathname to the object, for use in warning messages */
 
-	info->full_pathname = acpi_ns_get_external_pathname(info->node);
+	info->full_pathname = acpi_ns_get_normalized_pathname(info->node, TRUE);
 	if (!info->full_pathname) {
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index b744a53618eb..ac59929c3ee9 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -582,7 +582,8 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
 
 		/* Ignore error and move on to next device */
 
-		char *scope_name = acpi_ns_get_external_pathname(info->node);
+		char *scope_name =
+		    acpi_ns_get_normalized_pathname(device_node, TRUE);
 
 		ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
 				scope_name));
diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c
index 14ab83668207..14c953e6fe9e 100644
--- a/drivers/acpi/acpica/nsload.c
+++ b/drivers/acpi/acpica/nsload.c
@@ -149,6 +149,23 @@ unlock:
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "**** Completed Table Object Initialization\n"));
 
+	/*
+	 * Execute any module-level code that was detected during the table load
+	 * phase. Although illegal since ACPI 2.0, there are many machines that
+	 * contain this type of code. Each block of detected executable AML code
+	 * outside of any control method is wrapped with a temporary control
+	 * method object and placed on a global list. The methods on this list
+	 * are executed below.
+	 *
+	 * This case executes the module-level code for each table immediately
+	 * after the table has been loaded. This provides compatibility with
+	 * other ACPI implementations. Optionally, the execution can be deferred
+	 * until later, see acpi_initialize_objects.
+	 */
+	if (!acpi_gbl_group_module_level_code) {
+		acpi_ns_exec_module_code_list();
+	}
+
 	return_ACPI_STATUS(status);
 }
 
@@ -321,7 +338,6 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle)
 	/* This function does the real work */
 
 	status = acpi_ns_delete_subtree(handle);
-
 	return_ACPI_STATUS(status);
 }
 #endif
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index 8934b4eddb73..521031f9b6c6 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -70,7 +70,6 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
 	ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);
 
 	name_buffer = acpi_ns_get_normalized_pathname(node, FALSE);
-
 	return_PTR(name_buffer);
 }
 
@@ -93,7 +92,6 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node)
 	ACPI_FUNCTION_ENTRY();
 
 	size = acpi_ns_build_normalized_path(node, NULL, 0, FALSE);
-
 	return (size);
 }
 
@@ -217,6 +215,7 @@ acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 			ACPI_PATH_PUT8(full_path, path_size,
 				       AML_DUAL_NAME_PREFIX, length);
 		}
+
 		ACPI_MOVE_32_TO_32(name, &next_node->name);
 		do_no_trailing = no_trailing;
 		for (i = 0; i < 4; i++) {
@@ -228,8 +227,10 @@ acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 				ACPI_PATH_PUT8(full_path, path_size, c, length);
 			}
 		}
+
 		next_node = next_node->parent;
 	}
+
 	ACPI_PATH_PUT8(full_path, path_size, AML_ROOT_PREFIX, length);
 
 	/* Reverse the path string */
@@ -237,6 +238,7 @@ acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 	if (length <= path_size) {
 		left = full_path;
 		right = full_path + length - 1;
+
 		while (left < right) {
 			c = *left;
 			*left++ = *right;
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index 3736d43b18b9..43b45a8c2fe4 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -141,8 +141,8 @@ acpi_ns_one_complete_parse(u32 pass_number,
 
 	/* Parse the AML */
 
-	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %u parse\n",
-			  pass_number));
+	ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+			  "*PARSE* pass %u parse\n", pass_number));
 	status = acpi_ps_parse_aml(walk_state);
 
 cleanup:
@@ -181,6 +181,7 @@ acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
 	 * performs another complete parse of the AML.
 	 */
 	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n"));
+
 	status = acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1,
 					    table_index, start_node);
 	if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 9bb251932b45..c05a83be5c11 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -233,8 +233,9 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
 
 		/* First element is the (Integer) revision */
 
-		status = acpi_ns_check_object_type(info, elements,
-						   ACPI_RTYPE_INTEGER, 0);
+		status =
+		    acpi_ns_check_object_type(info, elements,
+					      ACPI_RTYPE_INTEGER, 0);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
@@ -252,8 +253,9 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
 
 		/* First element is the (Integer) count of subpackages to follow */
 
-		status = acpi_ns_check_object_type(info, elements,
-						   ACPI_RTYPE_INTEGER, 0);
+		status =
+		    acpi_ns_check_object_type(info, elements,
+					      ACPI_RTYPE_INTEGER, 0);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 77d8103d0094..6418863f93d5 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -116,6 +116,11 @@ static const struct acpi_simple_repair_info acpi_object_repair_info[] = {
 	 ACPI_NOT_PACKAGE_ELEMENT,
 	 acpi_ns_convert_to_resource},
 
+	/* Object reference conversions */
+
+	{"_DEP", ACPI_RTYPE_STRING, ACPI_ALL_PACKAGE_ELEMENTS,
+	 acpi_ns_convert_to_reference},
+
 	/* Unicode conversions */
 
 	{"_MLS", ACPI_RTYPE_STRING, 1,
@@ -172,8 +177,8 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 					      "Missing expected return value"));
 		}
 
-		status =
-		    predefined->object_converter(return_object, &new_object);
+		status = predefined->object_converter(info->node, return_object,
+						      &new_object);
 		if (ACPI_FAILURE(status)) {
 
 			/* A fatal error occurred during a conversion */
@@ -360,12 +365,15 @@ static const struct acpi_simple_repair_info *acpi_ns_match_simple_repair(struct
 			/* Check if we can actually repair this name/type combination */
 
 			if ((return_btype & this_name->unexpected_btypes) &&
-			    (package_index == this_name->package_index)) {
+			    (this_name->package_index ==
+			     ACPI_ALL_PACKAGE_ELEMENTS
+			     || package_index == this_name->package_index)) {
 				return (this_name);
 			}
 
 			return (NULL);
 		}
+
 		this_name++;
 	}
 
@@ -521,6 +529,7 @@ acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 			*dest = *source;
 			dest++;
 		}
+
 		source++;
 	}
 
@@ -572,8 +581,8 @@ acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 	ACPI_FUNCTION_NAME(ns_wrap_with_package);
 
 	/*
-	 * Create the new outer package and populate it. The new package will
-	 * have a single element, the lone sub-object.
+	 * Create the new outer package and populate it. The new
+	 * package will have a single element, the lone sub-object.
 	 */
 	pkg_obj_desc = acpi_ut_create_package_object(1);
 	if (!pkg_obj_desc) {
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 0515a70f42a4..f6dd2a83ea63 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -225,6 +225,7 @@ static const struct acpi_repair_info *acpi_ns_match_complex_repair(struct
 		if (ACPI_COMPARE_NAME(node->name.ascii, this_name->name)) {
 			return (this_name);
 		}
+
 		this_name++;
 	}
 
@@ -301,7 +302,8 @@ acpi_ns_repair_FDE(struct acpi_evaluate_info *info,
 		/* We can only repair if we have exactly 5 BYTEs */
 
 		if (return_object->buffer.length != ACPI_FDE_BYTE_BUFFER_SIZE) {
-			ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
+			ACPI_WARN_PREDEFINED((AE_INFO,
+					      info->full_pathname,
 					      info->node_flags,
 					      "Incorrect return buffer length %u, expected %u",
 					      return_object->buffer.length,
@@ -321,8 +323,8 @@ acpi_ns_repair_FDE(struct acpi_evaluate_info *info,
 		/* Expand each byte to a DWORD */
 
 		byte_buffer = return_object->buffer.pointer;
-		dword_buffer =
-		    ACPI_CAST_PTR(u32, buffer_object->buffer.pointer);
+		dword_buffer = ACPI_CAST_PTR(u32,
+					     buffer_object->buffer.pointer);
 
 		for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) {
 			*dword_buffer = (u32) *byte_buffer;
@@ -461,7 +463,8 @@ acpi_ns_repair_CST(struct acpi_evaluate_info *info,
 		removing = FALSE;
 
 		if ((*outer_elements)->package.count == 0) {
-			ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
+			ACPI_WARN_PREDEFINED((AE_INFO,
+					      info->full_pathname,
 					      info->node_flags,
 					      "SubPackage[%u] - removing entry due to zero count",
 					      i));
@@ -471,7 +474,8 @@ acpi_ns_repair_CST(struct acpi_evaluate_info *info,
 
 		obj_desc = (*outer_elements)->package.elements[1];	/* Index1 = Type */
 		if ((u32)obj_desc->integer.value == 0) {
-			ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
+			ACPI_WARN_PREDEFINED((AE_INFO,
+					      info->full_pathname,
 					      info->node_flags,
 					      "SubPackage[%u] - removing entry due to invalid Type(0)",
 					      i));
@@ -538,8 +542,8 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info,
 	}
 
 	if (return_object->string.length == 0) {
-		ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
-				      info->node_flags,
+		ACPI_WARN_PREDEFINED((AE_INFO,
+				      info->full_pathname, info->node_flags,
 				      "Invalid zero-length _HID or _CID string"));
 
 		/* Return AE_OK anyway, let driver handle it */
@@ -710,8 +714,9 @@ acpi_ns_repair_PSS(struct acpi_evaluate_info *info,
 		elements = (*outer_elements)->package.elements;
 		obj_desc = elements[1];	/* Index1 = power_dissipation */
 
-		if ((u32) obj_desc->integer.value > previous_value) {
-			ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
+		if ((u32)obj_desc->integer.value > previous_value) {
+			ACPI_WARN_PREDEFINED((AE_INFO,
+					      info->full_pathname,
 					      info->node_flags,
 					      "SubPackage[%u,%u] - suspicious power dissipation values",
 					      i - 1, i));
@@ -969,6 +974,7 @@ acpi_ns_remove_element(union acpi_operand_object *obj_desc, u32 index)
 			*dest = *source;
 			dest++;
 		}
+
 		source++;
 	}
 
diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index d73904013830..9cc3564de37e 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -105,7 +105,7 @@ acpi_ns_search_one_scope(u32 target_name,
 	if (ACPI_LV_NAMES & acpi_dbg_level) {
 		char *scope_name;
 
-		scope_name = acpi_ns_get_external_pathname(parent_node);
+		scope_name = acpi_ns_get_normalized_pathname(parent_node, TRUE);
 		if (scope_name) {
 			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
 					  "Searching %s (%p) For [%4.4s] (%s)\n",
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index de325ae04ce1..32f1d956eb7f 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -173,9 +173,10 @@ void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
 	info->fully_qualified = FALSE;
 
 	/*
-	 * For the internal name, the required length is 4 bytes per segment, plus
-	 * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null
-	 * (which is not really needed, but no there's harm in putting it there)
+	 * For the internal name, the required length is 4 bytes per segment,
+	 * plus 1 each for root_prefix, multi_name_prefix_op, segment count,
+	 * trailing null (which is not really needed, but no there's harm in
+	 * putting it there)
 	 *
 	 * strlen() + 1 covers the first name_seg, which has no path separator
 	 */
@@ -699,6 +700,7 @@ acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 		if (!prefix_node) {
 			*return_node = acpi_gbl_root_node;
 		}
+
 		return_ACPI_STATUS(AE_OK);
 	}
 
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 6ee1e52b903d..429f0d27bef0 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -750,8 +750,8 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
 
 	/* We have a valid device, invoke the user function */
 
-	status = info->user_function(obj_handle, nesting_level, info->context,
-				     return_value);
+	status = info->user_function(obj_handle, nesting_level,
+				     info->context, return_value);
 	return (status);
 }
 
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 4b4d2f43d406..669e0f1b0967 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -159,7 +159,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
 {
 	acpi_status status;
 	struct acpi_namespace_node *node;
-	char *node_name;
+	const char *node_name;
 
 	/* Parameter validation */
 
@@ -238,7 +238,6 @@ static char *acpi_ns_copy_device_id(struct acpi_pnp_device_id *dest,
 				    struct acpi_pnp_device_id *source,
 				    char *string_area)
 {
-
 	/* Create the destination PNP_DEVICE_ID */
 
 	dest->string = string_area;
@@ -263,11 +262,18 @@ static char *acpi_ns_copy_device_id(struct acpi_pnp_device_id *dest,
  *              namespace node and possibly by running several standard
  *              control methods (Such as in the case of a device.)
  *
- * For Device and Processor objects, run the Device _HID, _UID, _CID, _SUB,
- * _CLS, _STA, _ADR, _sx_w, and _sx_d methods.
+ * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
+ * _CLS, _ADR, _sx_w, and _sx_d methods.
  *
  * Note: Allocates the return buffer, must be freed by the caller.
  *
+ * Note: This interface is intended to be used during the initial device
+ * discovery namespace traversal. Therefore, no complex methods can be
+ * executed, especially those that access operation regions. Therefore, do
+ * not add any additional methods that could cause problems in this area.
+ * this was the fate of the _SUB method which was found to cause such
+ * problems and was removed (11/2015).
+ *
  ******************************************************************************/
 
 acpi_status
@@ -279,7 +285,6 @@ acpi_get_object_info(acpi_handle handle,
 	struct acpi_pnp_device_id_list *cid_list = NULL;
 	struct acpi_pnp_device_id *hid = NULL;
 	struct acpi_pnp_device_id *uid = NULL;
-	struct acpi_pnp_device_id *sub = NULL;
 	struct acpi_pnp_device_id *cls = NULL;
 	char *next_id_string;
 	acpi_object_type type;
@@ -325,7 +330,7 @@ acpi_get_object_info(acpi_handle handle,
 	if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
 		/*
 		 * Get extra info for ACPI Device/Processor objects only:
-		 * Run the Device _HID, _UID, _SUB, _CID, and _CLS methods.
+		 * Run the Device _HID, _UID, _CLS, and _CID methods.
 		 *
 		 * Note: none of these methods are required, so they may or may
 		 * not be present for this device. The Info->Valid bitfield is used
@@ -348,14 +353,6 @@ acpi_get_object_info(acpi_handle handle,
 			valid |= ACPI_VALID_UID;
 		}
 
-		/* Execute the Device._SUB method */
-
-		status = acpi_ut_execute_SUB(node, &sub);
-		if (ACPI_SUCCESS(status)) {
-			info_size += sub->length;
-			valid |= ACPI_VALID_SUB;
-		}
-
 		/* Execute the Device._CID method */
 
 		status = acpi_ut_execute_CID(node, &cid_list);
@@ -456,9 +453,8 @@ acpi_get_object_info(acpi_handle handle,
 	}
 
 	/*
-	 * Copy the HID, UID, SUB, and CIDs to the return buffer.
-	 * The variable-length strings are copied to the reserved area
-	 * at the end of the buffer.
+	 * Copy the HID, UID, and CIDs to the return buffer. The variable-length
+	 * strings are copied to the reserved area at the end of the buffer.
 	 *
 	 * For HID and CID, check if the ID is a PCI Root Bridge.
 	 */
@@ -476,11 +472,6 @@ acpi_get_object_info(acpi_handle handle,
 							uid, next_id_string);
 	}
 
-	if (sub) {
-		next_id_string = acpi_ns_copy_device_id(&info->subsystem_id,
-							sub, next_id_string);
-	}
-
 	if (cid_list) {
 		info->compatible_id_list.count = cid_list->count;
 		info->compatible_id_list.list_size = cid_list->list_size;
@@ -522,9 +513,6 @@ cleanup:
 	if (uid) {
 		ACPI_FREE(uid);
 	}
-	if (sub) {
-		ACPI_FREE(sub);
-	}
 	if (cid_list) {
 		ACPI_FREE(cid_list);
 	}
@@ -591,6 +579,7 @@ acpi_status acpi_install_method(u8 *buffer)
 	parser_state.aml += acpi_ps_get_opcode_size(opcode);
 	parser_state.pkg_end = acpi_ps_get_next_package_end(&parser_state);
 	path = acpi_ps_get_next_namestring(&parser_state);
+
 	method_flags = *parser_state.aml++;
 	aml_start = parser_state.aml;
 	aml_length = ACPI_PTR_DIFF(parser_state.pkg_end, aml_start);
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 793383501f81..6e1389babb47 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -74,10 +74,8 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
 		return (AE_BAD_PARAMETER);
 	}
 
-	/*
-	 * Special case for the predefined Root Node
-	 * (return type ANY)
-	 */
+	/* Special case for the predefined Root Node (return type ANY) */
+
 	if (handle == ACPI_ROOT_OBJECT) {
 		*ret_type = ACPI_TYPE_ANY;
 		return (AE_OK);
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index 29d8b7b01dca..f3bcfa20b0ae 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -269,7 +269,8 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
 	 */
 	if (ACPI_SUCCESS(status) &&
 	    possible_method_call && (node->type == ACPI_TYPE_METHOD)) {
-		if (walk_state->opcode == AML_UNLOAD_OP) {
+		if (GET_CURRENT_ARG_TYPE(walk_state->arg_types) ==
+		    ARGP_SUPERNAME) {
 			/*
 			 * acpi_ps_get_next_namestring has increased the AML pointer,
 			 * so we need to restore the saved AML pointer for method call.
@@ -696,7 +697,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
  *
  * PARAMETERS:  walk_state          - Current state
  *              parser_state        - Current parser state object
- *              arg_type            - The argument type (AML_*_ARG)
+ *              arg_type            - The parser argument type (ARGP_*)
  *              return_arg          - Where the next arg is returned
  *
  * RETURN:      Status, and an op object containing the next argument.
@@ -733,6 +734,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 		if (!arg) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
+
 		acpi_ps_get_next_simple_arg(parser_state, arg_type, arg);
 		break;
 
@@ -798,6 +800,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 	case ARGP_TARGET:
 	case ARGP_SUPERNAME:
 	case ARGP_SIMPLENAME:
+	case ARGP_NAME_OR_REF:
 
 		subop = acpi_ps_peek_opcode(parser_state);
 		if (subop == 0 ||
@@ -814,17 +817,17 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 				return_ACPI_STATUS(AE_NO_MEMORY);
 			}
 
-			/* To support super_name arg of Unload */
+			/* super_name allows argument to be a method call */
 
-			if (walk_state->opcode == AML_UNLOAD_OP) {
+			if (arg_type == ARGP_SUPERNAME) {
 				status =
 				    acpi_ps_get_next_namepath(walk_state,
 							      parser_state, arg,
-							      1);
+							      ACPI_POSSIBLE_METHOD_CALL);
 
 				/*
-				 * If the super_name arg of Unload is a method call,
-				 * we have restored the AML pointer, just free this Arg
+				 * If the super_name argument is a method call, we have
+				 * already restored the AML pointer, just free this Arg
 				 */
 				if (arg->common.aml_opcode ==
 				    AML_INT_METHODCALL_OP) {
@@ -835,7 +838,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 				status =
 				    acpi_ps_get_next_namepath(walk_state,
 							      parser_state, arg,
-							      0);
+							      ACPI_NOT_METHOD_CALL);
 			}
 		} else {
 			/* Single complex argument, nothing returned */
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index 03ac8c9a67ab..a57f473bac83 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -109,10 +109,10 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
 
 	case AML_INT_NAMEPATH_OP:	/* AML_NAMESTRING_ARG */
 
-		status =
-		    acpi_ps_get_next_namepath(walk_state,
-					      &(walk_state->parser_state), op,
-					      1);
+		status = acpi_ps_get_next_namepath(walk_state,
+						   &(walk_state->parser_state),
+						   op,
+						   ACPI_POSSIBLE_METHOD_CALL);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
@@ -124,8 +124,8 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
 		/*
 		 * Op is not a constant or string, append each argument to the Op
 		 */
-		while (GET_CURRENT_ARG_TYPE(walk_state->arg_types)
-		       && !walk_state->arg_count) {
+		while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
+		       !walk_state->arg_count) {
 			walk_state->aml = walk_state->parser_state.aml;
 
 			status =
diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c
index ed90fddf2487..40909ddeebb3 100644
--- a/drivers/acpi/acpica/psopcode.c
+++ b/drivers/acpi/acpica/psopcode.c
@@ -185,458 +185,458 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
 /* Index           Name                 Parser Args               Interpreter Args                ObjectType                    Class                      Type                  Flags */
 
 /* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER,
-		 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+			 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 /* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER,
-		 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+			 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 /* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP,
-		 ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_SIMPLE,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_SIMPLE,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP,
-		 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_CONSTANT),
+			 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP,
-		 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_CONSTANT),
+			 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP,
-		 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_CONSTANT),
+			 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP,
-		 ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_CONSTANT),
+			 ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
-		 ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_NO_OBJ,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_NO_OBJ,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP,
-		 ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_OBJECT,
-		 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+			 ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_OBJECT,
+			 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
 /* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP,
-		 ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_OBJECT,
-		 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+			 ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_OBJECT,
+			 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
 /* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP,
-		 ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_COMPLEX,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED | AML_DEFER),
+			 ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_COMPLEX,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LOCAL_VARIABLE, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_METHOD_ARGUMENT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R),
 /* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R),
 /* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_2T_1R,
-		 AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_2T_1R,
+			 AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
 /* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP,
-		 ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP,
-		 ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
 /* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
 /* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
 /* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R),
 /* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
-		 AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
+			 AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
 /* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP,
-		 ARGI_CREATE_DWORD_FIELD_OP,
-		 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_CREATE),
+			 ARGI_CREATE_DWORD_FIELD_OP,
+			 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_CREATE),
 /* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP,
-		 ARGI_CREATE_WORD_FIELD_OP,
-		 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_CREATE),
+			 ARGI_CREATE_WORD_FIELD_OP,
+			 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_CREATE),
 /* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP,
-		 ARGI_CREATE_BYTE_FIELD_OP,
-		 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_CREATE),
+			 ARGI_CREATE_BYTE_FIELD_OP,
+			 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_CREATE),
 /* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP,
-		 ARGI_CREATE_BIT_FIELD_OP,
-		 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_CREATE),
-/* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+			 ARGI_CREATE_BIT_FIELD_OP,
+			 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_CREATE),
+/* 37 */ ACPI_OP("ObjectType", ARGP_OBJECT_TYPE_OP, ARGI_OBJECT_TYPE_OP,
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
 /* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
 			 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC |
 			 AML_CONSTANT),
 /* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-		 	 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC |
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+			 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC |
 			 AML_CONSTANT),
 /* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
-		 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+			 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_0T_1R,
-		 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_0T_1R,
+			 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_0T_1R,
-		 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_0T_1R,
+			 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-		 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+			 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+			 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+			 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+			 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+			 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_CONTROL,
-		 AML_TYPE_CONTROL, AML_HAS_ARGS),
+			 ACPI_TYPE_ANY, AML_CLASS_CONTROL,
+			 AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+			 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+			 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER,
-		 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+			 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 
 /* Prefixed opcodes (Two-byte opcodes with a prefix op) */
 
 /* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
-		 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+			 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
 /* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
 /* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP,
-		 ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
-		 AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_FIELD | AML_CREATE),
+			 ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
+			 AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_FIELD | AML_CREATE),
 /* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
-		 AML_FLAGS_EXEC_1A_1T_0R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
+			 AML_FLAGS_EXEC_1A_1T_0R),
 /* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-		 AML_FLAGS_EXEC_1A_0T_0R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+			 AML_FLAGS_EXEC_1A_0T_0R),
 /* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-		 AML_FLAGS_EXEC_1A_0T_0R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+			 AML_FLAGS_EXEC_1A_0T_0R),
 /* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
 /* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-		 AML_FLAGS_EXEC_2A_0T_1R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+			 AML_FLAGS_EXEC_2A_0T_1R),
 /* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-		 AML_FLAGS_EXEC_1A_0T_0R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+			 AML_FLAGS_EXEC_1A_0T_0R),
 /* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP,
-		 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-		 AML_TYPE_CONSTANT, 0),
+			 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+			 AML_TYPE_CONSTANT, 0),
 /* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_CONSTANT, 0),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_CONSTANT, 0),
 /* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
-		 AML_FLAGS_EXEC_3A_0T_0R),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
+			 AML_FLAGS_EXEC_3A_0T_0R),
 /* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP,
-		 ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_COMPLEX,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED | AML_DEFER),
+			 ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_COMPLEX,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
 			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
 			 AML_FIELD),
 /* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP,
-		 ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_NO_OBJ,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_NO_OBJ,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP,
-		 ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_SIMPLE,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_SIMPLE,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP,
-		 ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_SIMPLE,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_SIMPLE,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP,
-		 ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED),
+			 ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED),
 /* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_FIELD,
-		 	 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
 			 AML_FIELD),
 /* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP,
-		 	 ACPI_TYPE_LOCAL_BANK_FIELD,
+			 ACPI_TYPE_LOCAL_BANK_FIELD,
 			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
-		 	 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
 			 AML_FIELD | AML_DEFER),
 
 /* Internal opcodes that map to invalid AML opcodes */
 
 /* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-		 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+			 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
 /* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-		 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+			 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
 /* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP,
-		 ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
-		 AML_HAS_ARGS | AML_CONSTANT),
+			 ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
+			 AML_HAS_ARGS | AML_CONSTANT),
 /* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP,
-		 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
+			 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
 /* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP,
-		 ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
-		 AML_TYPE_METHOD_CALL,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
+			 ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
+			 AML_TYPE_METHOD_CALL,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
 /* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, 0),
+			 ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, 0),
 /* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP,
-		 ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+			 ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-		 AML_TYPE_BOGUS,
-		 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+			 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+			 AML_TYPE_BOGUS,
+			 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
 /* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP,
-		 ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+			 ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP,
-		 ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+			 ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-		 AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
-		 AML_HAS_ARGS | AML_HAS_RETVAL),
+			 AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
+			 AML_HAS_ARGS | AML_HAS_RETVAL),
 /* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID,
-		 AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
+			 AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
 /* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-		 AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
+			 AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
 /* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-		 AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
+			 AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
 
 /* ACPI 2.0 opcodes */
 
 /* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP,
-		 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-		 AML_TYPE_LITERAL, AML_CONSTANT),
+			 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+			 AML_TYPE_LITERAL, AML_CONSTANT),
 	/* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP,
 			 ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE,
 			 AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT,
 			 AML_HAS_ARGS | AML_DEFER),
 /* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP,
-		 ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+			 ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP,
-		 ARGI_CREATE_QWORD_FIELD_OP,
-		 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-		 AML_TYPE_CREATE_FIELD,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-		 AML_DEFER | AML_CREATE),
+			 ARGI_CREATE_QWORD_FIELD_OP,
+			 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+			 AML_TYPE_CREATE_FIELD,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+			 AML_DEFER | AML_CREATE),
 /* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP,
-		 ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R,
-		 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R,
+			 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_2A_1T_1R,
-		 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_2A_1T_1R,
+			 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
 /* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
-		 AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
+			 AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
 /* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+			 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-		 AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
+			 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+			 AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
 /* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP,
-		 ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
-		 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
-		 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-		 AML_NSNODE | AML_NAMED | AML_DEFER),
+			 ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
+			 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
-		 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
-		 AML_TYPE_NAMED_NO_OBJ,
-		 	 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+			 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+			 AML_TYPE_NAMED_NO_OBJ,
+			 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
 			 AML_NSNODE),
 
 /* ACPI 3.0 opcodes */
 
 /* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY,
-		 AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
+			 AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
 			 AML_FLAGS_EXEC_0A_0T_1R),
 
 /* ACPI 5.0 opcodes */
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 98001d7f6f80..b729d9b291d0 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -526,8 +526,8 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
 			}
 
 			/*
-			 * If the transfer to the new method method call worked, a new walk
-			 * state was created -- get it
+			 * If the transfer to the new method method call worked
+			 *, a new walk state was created -- get it
 			 */
 			walk_state = acpi_ds_get_current_walk_state(thread);
 			continue;
@@ -544,8 +544,8 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
 			/* Check for possible multi-thread reentrancy problem */
 
 			if ((status == AE_ALREADY_EXISTS) &&
-			    (!(walk_state->method_desc->method.
-			       info_flags & ACPI_METHOD_SERIALIZED))) {
+			    (!(walk_state->method_desc->method.info_flags &
+			       ACPI_METHOD_SERIALIZED))) {
 				/*
 				 * Method is not serialized and tried to create an object
 				 * twice. The probable cause is that the method cannot
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 71d2877cd2ce..6cb02a2a1468 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -175,8 +175,8 @@ void acpi_ps_free_op(union acpi_parse_object *op)
 	ACPI_FUNCTION_NAME(ps_free_op);
 
 	if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n",
-				  op));
+		ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+				  "Free retval op: %p\n", op));
 	}
 
 	if (op->common.flags & ACPI_PARSEOP_GENERIC) {
diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c
index ba5f69171288..f620d4395b66 100644
--- a/drivers/acpi/acpica/pswalk.c
+++ b/drivers/acpi/acpica/pswalk.c
@@ -99,6 +99,7 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
 		if (op == subtree_root) {
 			return_VOID;
 		}
+
 		if (next) {
 			op = next;
 		} else {
diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c
index 66d406e8fe36..bdb7e73cdf4a 100644
--- a/drivers/acpi/acpica/rsaddr.c
+++ b/drivers/acpi/acpica/rsaddr.c
@@ -312,8 +312,8 @@ acpi_rs_get_address_common(struct acpi_resource *resource,
 
 	/* Validate the Resource Type */
 
-	if ((aml->address.resource_type > 2)
-	    && (aml->address.resource_type < 0xC0)) {
+	if ((aml->address.resource_type > 2) &&
+	    (aml->address.resource_type < 0xC0)) {
 		return (FALSE);
 	}
 
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index cb739a694931..88fce58cc545 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -143,16 +143,17 @@ acpi_rs_stream_option_length(u32 resource_length,
 	ACPI_FUNCTION_ENTRY();
 
 	/*
-	 * The resource_source_index and resource_source are optional elements of some
-	 * Large-type resource descriptors.
+	 * The resource_source_index and resource_source are optional elements of
+	 * some Large-type resource descriptors.
 	 */
 
 	/*
-	 * If the length of the actual resource descriptor is greater than the ACPI
-	 * spec-defined minimum length, it means that a resource_source_index exists
-	 * and is followed by a (required) null terminated string. The string length
-	 * (including the null terminator) is the resource length minus the minimum
-	 * length, minus one byte for the resource_source_index itself.
+	 * If the length of the actual resource descriptor is greater than the
+	 * ACPI spec-defined minimum length, it means that a resource_source_index
+	 * exists and is followed by a (required) null terminated string. The
+	 * string length (including the null terminator) is the resource length
+	 * minus the minimum length, minus one byte for the resource_source_index
+	 * itself.
 	 */
 	if (resource_length > minimum_aml_resource_length) {
 
@@ -277,11 +278,11 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
 			 * 16-Bit Address Resource:
 			 * Add the size of the optional resource_source info
 			 */
-			total_size = (acpi_rs_length)
-			    (total_size +
-			     acpi_rs_struct_option_length(&resource->data.
-							  address16.
-							  resource_source));
+			total_size = (acpi_rs_length) (total_size +
+						       acpi_rs_struct_option_length
+						       (&resource->data.
+							address16.
+							resource_source));
 			break;
 
 		case ACPI_RESOURCE_TYPE_ADDRESS32:
@@ -289,11 +290,11 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
 			 * 32-Bit Address Resource:
 			 * Add the size of the optional resource_source info
 			 */
-			total_size = (acpi_rs_length)
-			    (total_size +
-			     acpi_rs_struct_option_length(&resource->data.
-							  address32.
-							  resource_source));
+			total_size = (acpi_rs_length) (total_size +
+						       acpi_rs_struct_option_length
+						       (&resource->data.
+							address32.
+							resource_source));
 			break;
 
 		case ACPI_RESOURCE_TYPE_ADDRESS64:
@@ -301,11 +302,11 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
 			 * 64-Bit Address Resource:
 			 * Add the size of the optional resource_source info
 			 */
-			total_size = (acpi_rs_length)
-			    (total_size +
-			     acpi_rs_struct_option_length(&resource->data.
-							  address64.
-							  resource_source));
+			total_size = (acpi_rs_length) (total_size +
+						       acpi_rs_struct_option_length
+						       (&resource->data.
+							address64.
+							resource_source));
 			break;
 
 		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
@@ -314,26 +315,28 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
 			 * Add the size of each additional optional interrupt beyond the
 			 * required 1 (4 bytes for each u32 interrupt number)
 			 */
-			total_size = (acpi_rs_length)
-			    (total_size +
-			     ((resource->data.extended_irq.interrupt_count -
-			       1) * 4) +
-			     /* Add the size of the optional resource_source info */
-			     acpi_rs_struct_option_length(&resource->data.
-							  extended_irq.
-							  resource_source));
+			total_size = (acpi_rs_length) (total_size +
+						       ((resource->data.
+							 extended_irq.
+							 interrupt_count -
+							 1) * 4) +
+						       /* Add the size of the optional resource_source info */
+						       acpi_rs_struct_option_length
+						       (&resource->data.
+							extended_irq.
+							resource_source));
 			break;
 
 		case ACPI_RESOURCE_TYPE_GPIO:
 
-			total_size =
-			    (acpi_rs_length) (total_size +
-					      (resource->data.gpio.
-					       pin_table_length * 2) +
-					      resource->data.gpio.
-					      resource_source.string_length +
-					      resource->data.gpio.
-					      vendor_length);
+			total_size = (acpi_rs_length) (total_size +
+						       (resource->data.gpio.
+							pin_table_length * 2) +
+						       resource->data.gpio.
+						       resource_source.
+						       string_length +
+						       resource->data.gpio.
+						       vendor_length);
 
 			break;
 
@@ -566,8 +569,8 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 			    acpi_gbl_resource_struct_sizes[resource_index] +
 			    extra_struct_bytes;
 		}
-		buffer_size = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
 
+		buffer_size = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
 		*size_needed += buffer_size;
 
 		ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index a5344428f3ae..603e544e3f64 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -81,8 +81,9 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 
 	/* Get the required length for the converted resource */
 
-	status = acpi_rs_get_list_length(aml_buffer, aml_buffer_length,
-					 &list_size_needed);
+	status =
+	    acpi_rs_get_list_length(aml_buffer, aml_buffer_length,
+				    &list_size_needed);
 	if (status == AE_AML_NO_RESOURCE_END_TAG) {
 		status = AE_OK;
 	}
@@ -232,8 +233,9 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 
 	/* Get the required buffer length */
 
-	status = acpi_rs_get_pci_routing_table_length(package_object,
-						      &buffer_size_needed);
+	status =
+	    acpi_rs_get_pci_routing_table_length(package_object,
+						 &buffer_size_needed);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -270,9 +272,9 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 		user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
 
 		/*
-		 * Fill in the Length field with the information we have at this point.
-		 * The minus four is to subtract the size of the u8 Source[4] member
-		 * because it is added below.
+		 * Fill in the Length field with the information we have at this
+		 * point. The minus four is to subtract the size of the u8
+		 * Source[4] member because it is added below.
 		 */
 		user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4);
 
@@ -345,11 +347,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 					   (u8 *) output_buffer->pointer);
 				path_buffer.pointer = user_prt->source;
 
-				status =
-				    acpi_ns_handle_to_pathname((acpi_handle)
-							       node,
-							       &path_buffer,
-							       FALSE);
+				status = acpi_ns_handle_to_pathname((acpi_handle) node, &path_buffer, FALSE);
 
 				/* +1 to include null terminator */
 
@@ -371,8 +369,8 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 
 			case ACPI_TYPE_INTEGER:
 				/*
-				 * If this is a number, then the Source Name is NULL, since the
-				 * entire buffer was zeroed out, we can leave this alone.
+				 * If this is a number, then the Source Name is NULL, since
+				 * the entire buffer was zeroed out, we can leave this alone.
 				 *
 				 * Add to the Length field the length of the u32 NULL
 				 */
@@ -451,9 +449,9 @@ acpi_rs_create_aml_resources(struct acpi_buffer *resource_list,
 
 	/* Get the buffer size needed for the AML byte stream */
 
-	status = acpi_rs_get_aml_length(resource_list->pointer,
-					resource_list->length,
-					&aml_size_needed);
+	status =
+	    acpi_rs_get_aml_length(resource_list->pointer,
+				   resource_list->length, &aml_size_needed);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
 			  (u32)aml_size_needed, acpi_format_exception(status)));
diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c
index 2a09288e7c57..05cc560699e1 100644
--- a/drivers/acpi/acpica/rsdump.c
+++ b/drivers/acpi/acpica/rsdump.c
@@ -483,6 +483,7 @@ static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
 
 static void acpi_rs_out_string(char *title, char *value)
 {
+
 	acpi_os_printf("%27s : %s", title, value);
 	if (!*value) {
 		acpi_os_printf("[NULL NAMESTRING]");
@@ -497,21 +498,25 @@ static void acpi_rs_out_integer8(char *title, u8 value)
 
 static void acpi_rs_out_integer16(char *title, u16 value)
 {
+
 	acpi_os_printf("%27s : %4.4X\n", title, value);
 }
 
 static void acpi_rs_out_integer32(char *title, u32 value)
 {
+
 	acpi_os_printf("%27s : %8.8X\n", title, value);
 }
 
 static void acpi_rs_out_integer64(char *title, u64 value)
 {
+
 	acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
 }
 
 static void acpi_rs_out_title(char *title)
 {
+
 	acpi_os_printf("%27s : ", title);
 }
 
@@ -544,6 +549,7 @@ static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
 	for (i = 0; i < length; i++) {
 		acpi_os_printf("%X ", data[i]);
 	}
+
 	acpi_os_printf("\n");
 }
 
diff --git a/drivers/acpi/acpica/rslist.c b/drivers/acpi/acpica/rslist.c
index 50d5be2ee062..286ccb461a20 100644
--- a/drivers/acpi/acpica/rslist.c
+++ b/drivers/acpi/acpica/rslist.c
@@ -89,6 +89,7 @@ acpi_rs_convert_aml_to_resources(u8 * aml,
 	/* Get the appropriate conversion info table */
 
 	aml_resource = ACPI_CAST_PTR(union aml_resource, aml);
+
 	if (acpi_ut_get_resource_type(aml) == ACPI_RESOURCE_NAME_SERIAL_BUS) {
 		if (aml_resource->common_serial_bus.type >
 		    AML_RESOURCE_MAX_SERIALBUSTYPE) {
@@ -225,10 +226,10 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
 
 		/* Perform final sanity check on the new AML resource descriptor */
 
-		status = acpi_ut_validate_resource(NULL,
-						   ACPI_CAST_PTR(union
-								 aml_resource,
-								 aml), NULL);
+		status =
+		    acpi_ut_validate_resource(NULL,
+					      ACPI_CAST_PTR(union aml_resource,
+							    aml), NULL);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index ac37852e0821..b112c7b1abbf 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -189,8 +189,8 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 			item_count = ACPI_GET8(source);
 			ACPI_SET8(destination, item_count);
 
-			resource->length = resource->length +
-			    (info->value * item_count);
+			resource->length =
+			    resource->length + (info->value * item_count);
 			break;
 
 		case ACPI_RSC_COUNT_GPIO_RES:
@@ -445,8 +445,8 @@ exit:
 
 		/* Round the resource struct length up to the next boundary (32 or 64) */
 
-		resource->length =
-		    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
+		resource->length = (u32)
+		    ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
 	}
 	return_ACPI_STATUS(AE_OK);
 }
@@ -550,9 +550,8 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			item_count = ACPI_GET8(source);
 			ACPI_SET8(destination, item_count);
 
-			aml_length =
-			    (u16) (aml_length +
-				   (info->value * (item_count - 1)));
+			aml_length = (u16)
+			    (aml_length + (info->value * (item_count - 1)));
 			break;
 
 		case ACPI_RSC_COUNT16:
@@ -723,11 +722,10 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 			/*
 			 * 16-bit encoded bitmask (IRQ macro)
 			 */
-			temp16 = acpi_rs_encode_bitmask(source,
-							*ACPI_ADD_PTR(u8,
-								      resource,
-								      info->
-								      value));
+			temp16 =
+			    acpi_rs_encode_bitmask(source,
+						   *ACPI_ADD_PTR(u8, resource,
+								 info->value));
 			ACPI_MOVE_16_TO_16(destination, &temp16);
 			break;
 
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 9486992edbb8..33e558c9434f 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -221,14 +221,13 @@ acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
 		ACPI_MOVE_16_TO_16(&aml->large_header.resource_length,
 				   &resource_length);
 	} else {
-		/* Small descriptor -- bits 2:0 of byte 0 contain the length */
-
+		/*
+		 * Small descriptor -- bits 2:0 of byte 0 contain the length
+		 * Clear any existing length, preserving descriptor type bits
+		 */
 		aml->small_header.descriptor_type = (u8)
-
-		    /* Clear any existing length, preserving descriptor type bits */
-		    ((aml->small_header.
-		      descriptor_type & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
-
+		    ((aml->small_header.descriptor_type &
+		      ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
 		     | resource_length);
 	}
 }
@@ -333,8 +332,8 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
 	aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
 
 	/*
-	 * resource_source is present if the length of the descriptor is longer than
-	 * the minimum length.
+	 * resource_source is present if the length of the descriptor is longer
+	 * than the minimum length.
 	 *
 	 * Note: Some resource descriptors will have an additional null, so
 	 * we add 1 to the minimum length.
@@ -366,6 +365,7 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
 		total_length =
 		    (u32)strlen(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
 		    1;
+
 		total_length = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
 
 		memset(resource_source->string_ptr, 0, total_length);
@@ -438,8 +438,8 @@ acpi_rs_set_resource_source(union aml_resource * aml,
 		 * Add the length of the string (+ 1 for null terminator) to the
 		 * final descriptor length
 		 */
-		descriptor_length +=
-		    ((acpi_rsdesc_size) resource_source->string_length + 1);
+		descriptor_length += ((acpi_rsdesc_size)
+				      resource_source->string_length + 1);
 	}
 
 	/* Return the new total length of the AML descriptor */
@@ -478,8 +478,9 @@ acpi_rs_get_prt_method_data(struct acpi_namespace_node * node,
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT,
-					 ACPI_BTYPE_PACKAGE, &obj_desc);
+	status =
+	    acpi_ut_evaluate_object(node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE,
+				    &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -527,8 +528,9 @@ acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS,
-					 ACPI_BTYPE_BUFFER, &obj_desc);
+	status =
+	    acpi_ut_evaluate_object(node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER,
+				    &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -577,8 +579,9 @@ acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS,
-					 ACPI_BTYPE_BUFFER, &obj_desc);
+	status =
+	    acpi_ut_evaluate_object(node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER,
+				    &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -627,8 +630,9 @@ acpi_rs_get_aei_method_data(struct acpi_namespace_node *node,
 
 	/* Execute the method, no parameters */
 
-	status = acpi_ut_evaluate_object(node, METHOD_NAME__AEI,
-					 ACPI_BTYPE_BUFFER, &obj_desc);
+	status =
+	    acpi_ut_evaluate_object(node, METHOD_NAME__AEI, ACPI_BTYPE_BUFFER,
+				    &obj_desc);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 1e8cd5723326..308bfd6bff5f 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -53,7 +53,7 @@ ACPI_MODULE_NAME("rsxface")
 
 /* Local macros for 16,32-bit to 64-bit conversion */
 #define ACPI_COPY_FIELD(out, in, field)  ((out)->field = (in)->field)
-#define ACPI_COPY_ADDRESS(out, in)                      \
+#define ACPI_COPY_ADDRESS(out, in)                       \
 	ACPI_COPY_FIELD(out, in, resource_type);             \
 	ACPI_COPY_FIELD(out, in, producer_consumer);         \
 	ACPI_COPY_FIELD(out, in, decode);                    \
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index 5c9d5abf1588..4a8152777767 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -407,6 +407,7 @@ acpi_tb_verify_temp_table(struct acpi_table_desc * table_desc, char *signature)
 					table_desc->signature.ascii : "????",
 					ACPI_FORMAT_UINT64(table_desc->
 							   address)));
+
 			goto invalidate_and_exit;
 		}
 	}
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 6319b42420c6..bd87801acedf 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -337,8 +337,8 @@ acpi_tb_install_standard_table(acpi_physical_address address,
 			 * need to be unregistered when they are unloaded, and slots in the
 			 * root table list should be reused when empty.
 			 */
-			if (acpi_gbl_root_table_list.tables[i].
-			    flags & ACPI_TABLE_IS_LOADED) {
+			if (acpi_gbl_root_table_list.tables[i].flags &
+			    ACPI_TABLE_IS_LOADED) {
 
 				/* Table is still loaded, this is an error */
 
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 709d5112fc16..d0d12596cfc9 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -76,6 +76,7 @@ static void acpi_tb_fix_string(char *string, acpi_size length)
 		if (!isprint((int)*string)) {
 			*string = '?';
 		}
+
 		string++;
 		length--;
 	}
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index d8ddef38c947..7c1b5f8a5cbf 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -121,6 +121,7 @@ void acpi_tb_check_dsdt_header(void)
 		ACPI_BIOS_ERROR((AE_INFO,
 				 "The DSDT has been corrupted or replaced - "
 				 "old, new headers below"));
+
 		acpi_tb_print_table_header(0, &acpi_gbl_original_dsdt_header);
 		acpi_tb_print_table_header(0, acpi_gbl_DSDT);
 
@@ -379,7 +380,6 @@ next_table:
 	}
 
 	acpi_os_unmap_memory(table, length);
-
 	return_ACPI_STATUS(AE_OK);
 }
 
@@ -389,7 +389,7 @@ next_table:
  *
  * PARAMETERS:  signature           - Sig string to be validated
  *
- * RETURN:      TRUE if signature is correct length and has valid characters
+ * RETURN:      TRUE if signature is has 4 valid ACPI characters
  *
  * DESCRIPTION: Validate an ACPI table signature.
  *
@@ -399,12 +399,6 @@ u8 acpi_is_valid_signature(char *signature)
 {
 	u32 i;
 
-	/* Validate the signature length */
-
-	if (strlen(signature) != ACPI_NAME_SIZE) {
-		return (FALSE);
-	}
-
 	/* Validate each character in the signature */
 
 	for (i = 0; i < ACPI_NAME_SIZE; i++) {
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 55ee14ca9418..ca2f1366b498 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -191,6 +191,7 @@ acpi_status acpi_tb_load_namespace(void)
 					"(%4.4s:%8.8s) while loading table",
 					table->signature.ascii,
 					table->pointer->oem_table_id));
+
 			tables_failed++;
 
 			ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
@@ -206,7 +207,7 @@ acpi_status acpi_tb_load_namespace(void)
 
 	if (!tables_failed) {
 		ACPI_INFO((AE_INFO,
-			   "%u ACPI AML tables successfully acquired and loaded",
+			   "%u ACPI AML tables successfully acquired and loaded\n",
 			   tables_loaded));
 	} else {
 		ACPI_ERROR((AE_INFO,
diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c
index 911ea8e7fe87..38a29e235b74 100644
--- a/drivers/acpi/acpica/utaddress.c
+++ b/drivers/acpi/acpica/utaddress.c
@@ -239,8 +239,9 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id,
 			overlap_count++;
 			if (warn) {	/* Optional warning message */
 				pathname =
-				    acpi_ns_get_external_pathname(range_info->
-								  region_node);
+				    acpi_ns_get_normalized_pathname(range_info->
+								    region_node,
+								    TRUE);
 
 				ACPI_WARNING((AE_INFO,
 					      "%s range 0x%8.8X%8.8X-0x%8.8X%8.8X conflicts with OpRegion 0x%8.8X%8.8X-0x%8.8X%8.8X (%s)",
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 257221d452c8..ade8acf3f3a5 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -257,9 +257,9 @@ acpi_ut_copy_ielement_to_eelement(u8 object_type,
 	ACPI_FUNCTION_ENTRY();
 
 	this_index = state->pkg.index;
-	target_object = (union acpi_object *)
-	    &((union acpi_object *)(state->pkg.dest_object))->package.
-	    elements[this_index];
+	target_object = (union acpi_object *)&((union acpi_object *)
+					       (state->pkg.dest_object))->
+	    package.elements[this_index];
 
 	switch (object_type) {
 	case ACPI_COPY_TYPE_SIMPLE:
@@ -348,15 +348,15 @@ acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
 	 * Free space begins right after the first package
 	 */
 	info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
-	info.free_space =
-	    buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
+	info.free_space = buffer +
+	    ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
 	info.object_space = 0;
 	info.num_packages = 1;
 
 	external_object->type = internal_object->common.type;
 	external_object->package.count = internal_object->package.count;
-	external_object->package.elements = ACPI_CAST_PTR(union acpi_object,
-							  info.free_space);
+	external_object->package.elements =
+	    ACPI_CAST_PTR(union acpi_object, info.free_space);
 
 	/*
 	 * Leave room for an array of ACPI_OBJECTS in the buffer
@@ -593,8 +593,8 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
 	package_elements = package_object->package.elements;
 
 	/*
-	 * Recursive implementation. Probably ok, since nested external packages
-	 * as parameters should be very rare.
+	 * Recursive implementation. Probably ok, since nested external
+	 * packages as parameters should be very rare.
 	 */
 	for (i = 0; i < external_object->package.count; i++) {
 		status =
@@ -649,9 +649,8 @@ acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
 		/*
 		 * Build a simple object (no nested objects)
 		 */
-		status =
-		    acpi_ut_copy_esimple_to_isimple(external_object,
-						    internal_object);
+		status = acpi_ut_copy_esimple_to_isimple(external_object,
+							 internal_object);
 	}
 
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index ecaaaffc0788..3533135dbd4d 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -114,7 +114,7 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
 	"PCC"			/* 0x0A */
 };
 
-char *acpi_ut_get_region_name(u8 space_id)
+const char *acpi_ut_get_region_name(u8 space_id)
 {
 
 	if (space_id >= ACPI_USER_REGION_BEGIN) {
@@ -127,7 +127,7 @@ char *acpi_ut_get_region_name(u8 space_id)
 		return ("InvalidSpaceId");
 	}
 
-	return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
+	return (acpi_gbl_region_types[space_id]);
 }
 
 /*******************************************************************************
@@ -152,14 +152,14 @@ static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
 	"RealTimeClock",
 };
 
-char *acpi_ut_get_event_name(u32 event_id)
+const char *acpi_ut_get_event_name(u32 event_id)
 {
 
 	if (event_id > ACPI_EVENT_MAX) {
 		return ("InvalidEventID");
 	}
 
-	return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
+	return (acpi_gbl_event_types[event_id]);
 }
 
 /*******************************************************************************
@@ -180,7 +180,8 @@ char *acpi_ut_get_event_name(u32 event_id)
  *
  * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
  * when stored in a table it really means that we have thus far seen no
- * evidence to indicate what type is actually going to be stored for this entry.
+ * evidence to indicate what type is actually going to be stored for this
+ & entry.
  */
 static const char acpi_gbl_bad_type[] = "UNDEFINED";
 
@@ -220,17 +221,17 @@ static const char *acpi_gbl_ns_type_names[] = {
 	/* 30 */ "Invalid"
 };
 
-char *acpi_ut_get_type_name(acpi_object_type type)
+const char *acpi_ut_get_type_name(acpi_object_type type)
 {
 
 	if (type > ACPI_TYPE_INVALID) {
-		return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
+		return (acpi_gbl_bad_type);
 	}
 
-	return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
+	return (acpi_gbl_ns_type_names[type]);
 }
 
-char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
+const char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
 {
 	ACPI_FUNCTION_TRACE(ut_get_object_type_name);
 
@@ -267,7 +268,7 @@ char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
  *
  ******************************************************************************/
 
-char *acpi_ut_get_node_name(void *object)
+const char *acpi_ut_get_node_name(void *object)
 {
 	struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
 
@@ -333,7 +334,7 @@ static const char *acpi_gbl_desc_type_names[] = {
 	/* 15 */ "Node"
 };
 
-char *acpi_ut_get_descriptor_name(void *object)
+const char *acpi_ut_get_descriptor_name(void *object)
 {
 
 	if (!object) {
@@ -344,10 +345,7 @@ char *acpi_ut_get_descriptor_name(void *object)
 		return ("Not a Descriptor");
 	}
 
-	return (ACPI_CAST_PTR(char,
-			      acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
-						       (object)]));
-
+	return (acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE(object)]);
 }
 
 /*******************************************************************************
@@ -415,7 +413,7 @@ const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
 
 /* Names for internal mutex objects, used for debug output */
 
-static char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
+static const char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
 	"ACPI_MTX_Interpreter",
 	"ACPI_MTX_Namespace",
 	"ACPI_MTX_Tables",
@@ -424,7 +422,7 @@ static char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
 	"ACPI_MTX_Memory",
 };
 
-char *acpi_ut_get_mutex_name(u32 mutex_id)
+const char *acpi_ut_get_mutex_name(u32 mutex_id)
 {
 
 	if (mutex_id > ACPI_MAX_MUTEX) {
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 1638312e3d8f..1afd7427a90c 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -209,6 +209,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
 			acpi_ut_delete_object_desc(object->method.mutex);
 			object->method.mutex = NULL;
 		}
+
 		if (object->method.node) {
 			object->method.node = NULL;
 		}
@@ -515,8 +516,8 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 		}
 
 		/*
-		 * All sub-objects must have their reference count incremented also.
-		 * Different object types have different subobjects.
+		 * All sub-objects must have their reference count incremented
+		 * also. Different object types have different subobjects.
 		 */
 		switch (object->common.type) {
 		case ACPI_TYPE_DEVICE:
diff --git a/drivers/acpi/acpica/uterror.c b/drivers/acpi/acpica/uterror.c
index 9ef80f2828e3..f93bb90ea72a 100644
--- a/drivers/acpi/acpica/uterror.c
+++ b/drivers/acpi/acpica/uterror.c
@@ -217,8 +217,9 @@ acpi_ut_namespace_error(const char *module_name,
 	} else {
 		/* Convert path to external format */
 
-		status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
-						  internal_name, NULL, &name);
+		status =
+		    acpi_ns_externalize_name(ACPI_UINT32_MAX, internal_name,
+					     NULL, &name);
 
 		/* Print target name */
 
@@ -271,9 +272,8 @@ acpi_ut_method_error(const char *module_name,
 	acpi_os_printf(ACPI_MSG_ERROR);
 
 	if (path) {
-		status =
-		    acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
-				     &node);
+		status = acpi_ns_get_node(prefix_node, path,
+					  ACPI_NS_NO_UPSEARCH, &node);
 		if (ACPI_FAILURE(status)) {
 			acpi_os_printf("[Could not get node by pathname]");
 		}
diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c
deleted file mode 100644
index d435b7b7eb94..000000000000
--- a/drivers/acpi/acpica/utfileio.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*******************************************************************************
- *
- * Module Name: utfileio - simple file I/O routines
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2015, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include "accommon.h"
-#include "actables.h"
-#include "acapps.h"
-#include "errno.h"
-
-#ifdef ACPI_ASL_COMPILER
-#include "aslcompiler.h"
-#endif
-
-#define _COMPONENT          ACPI_CA_DEBUGGER
-ACPI_MODULE_NAME("utfileio")
-
-#ifdef ACPI_APPLICATION
-/* Local prototypes */
-static acpi_status
-acpi_ut_check_text_mode_corruption(u8 *table,
-				   u32 table_length, u32 file_length);
-
-static acpi_status
-acpi_ut_read_table(FILE * fp,
-		   struct acpi_table_header **table, u32 *table_length);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_check_text_mode_corruption
- *
- * PARAMETERS:  table           - Table buffer
- *              table_length    - Length of table from the table header
- *              file_length     - Length of the file that contains the table
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Check table for text mode file corruption where all linefeed
- *              characters (LF) have been replaced by carriage return linefeed
- *              pairs (CR/LF).
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_check_text_mode_corruption(u8 *table, u32 table_length, u32 file_length)
-{
-	u32 i;
-	u32 pairs = 0;
-
-	if (table_length != file_length) {
-		ACPI_WARNING((AE_INFO,
-			      "File length (0x%X) is not the same as the table length (0x%X)",
-			      file_length, table_length));
-	}
-
-	/* Scan entire table to determine if each LF has been prefixed with a CR */
-
-	for (i = 1; i < file_length; i++) {
-		if (table[i] == 0x0A) {
-			if (table[i - 1] != 0x0D) {
-
-				/* The LF does not have a preceding CR, table not corrupted */
-
-				return (AE_OK);
-			} else {
-				/* Found a CR/LF pair */
-
-				pairs++;
-			}
-			i++;
-		}
-	}
-
-	if (!pairs) {
-		return (AE_OK);
-	}
-
-	/*
-	 * Entire table scanned, each CR is part of a CR/LF pair --
-	 * meaning that the table was treated as a text file somewhere.
-	 *
-	 * NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
-	 * original table are left untouched by the text conversion process --
-	 * meaning that we cannot simply replace CR/LF pairs with LFs.
-	 */
-	acpi_os_printf("Table has been corrupted by text mode conversion\n");
-	acpi_os_printf("All LFs (%u) were changed to CR/LF pairs\n", pairs);
-	acpi_os_printf("Table cannot be repaired!\n");
-	return (AE_BAD_VALUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_read_table
- *
- * PARAMETERS:  fp              - File that contains table
- *              table           - Return value, buffer with table
- *              table_length    - Return value, length of table
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load the DSDT from the file pointer
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_read_table(FILE * fp,
-		   struct acpi_table_header **table, u32 *table_length)
-{
-	struct acpi_table_header table_header;
-	u32 actual;
-	acpi_status status;
-	u32 file_size;
-	u8 standard_header = TRUE;
-	s32 count;
-
-	/* Get the file size */
-
-	file_size = cm_get_file_size(fp);
-	if (file_size == ACPI_UINT32_MAX) {
-		return (AE_ERROR);
-	}
-
-	if (file_size < 4) {
-		return (AE_BAD_HEADER);
-	}
-
-	/* Read the signature */
-
-	fseek(fp, 0, SEEK_SET);
-
-	count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
-	if (count != sizeof(struct acpi_table_header)) {
-		acpi_os_printf("Could not read the table header\n");
-		return (AE_BAD_HEADER);
-	}
-
-	/* The RSDP table does not have standard ACPI header */
-
-	if (ACPI_VALIDATE_RSDP_SIG(table_header.signature)) {
-		*table_length = file_size;
-		standard_header = FALSE;
-	} else {
-
-#if 0
-		/* Validate the table header/length */
-
-		status = acpi_tb_validate_table_header(&table_header);
-		if (ACPI_FAILURE(status)) {
-			acpi_os_printf("Table header is invalid!\n");
-			return (status);
-		}
-#endif
-
-		/* File size must be at least as long as the Header-specified length */
-
-		if (table_header.length > file_size) {
-			acpi_os_printf
-			    ("TableHeader length [0x%X] greater than the input file size [0x%X]\n",
-			     table_header.length, file_size);
-
-#ifdef ACPI_ASL_COMPILER
-			acpi_os_printf("File is corrupt or is ASCII text -- "
-				       "it must be a binary file\n");
-#endif
-			return (AE_BAD_HEADER);
-		}
-#ifdef ACPI_OBSOLETE_CODE
-		/* We only support a limited number of table types */
-
-		if (!ACPI_COMPARE_NAME
-		    ((char *)table_header.signature, ACPI_SIG_DSDT)
-		    && !ACPI_COMPARE_NAME((char *)table_header.signature,
-					  ACPI_SIG_PSDT)
-		    && !ACPI_COMPARE_NAME((char *)table_header.signature,
-					  ACPI_SIG_SSDT)) {
-			acpi_os_printf
-			    ("Table signature [%4.4s] is invalid or not supported\n",
-			     (char *)table_header.signature);
-			ACPI_DUMP_BUFFER(&table_header,
-					 sizeof(struct acpi_table_header));
-			return (AE_ERROR);
-		}
-#endif
-
-		*table_length = table_header.length;
-	}
-
-	/* Allocate a buffer for the table */
-
-	*table = acpi_os_allocate((size_t) file_size);
-	if (!*table) {
-		acpi_os_printf
-		    ("Could not allocate memory for ACPI table %4.4s (size=0x%X)\n",
-		     table_header.signature, *table_length);
-		return (AE_NO_MEMORY);
-	}
-
-	/* Get the rest of the table */
-
-	fseek(fp, 0, SEEK_SET);
-	actual = fread(*table, 1, (size_t) file_size, fp);
-	if (actual == file_size) {
-		if (standard_header) {
-
-			/* Now validate the checksum */
-
-			status = acpi_tb_verify_checksum((void *)*table,
-							 ACPI_CAST_PTR(struct
-								       acpi_table_header,
-								       *table)->
-							 length);
-
-			if (status == AE_BAD_CHECKSUM) {
-				status =
-				    acpi_ut_check_text_mode_corruption((u8 *)
-								       *table,
-								       file_size,
-								       (*table)->
-								       length);
-				return (status);
-			}
-		}
-		return (AE_OK);
-	}
-
-	if (actual > 0) {
-		acpi_os_printf("Warning - reading table, asked for %X got %X\n",
-			       file_size, actual);
-		return (AE_OK);
-	}
-
-	acpi_os_printf("Error - could not read the table file\n");
-	acpi_os_free(*table);
-	*table = NULL;
-	*table_length = 0;
-	return (AE_ERROR);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_read_table_from_file
- *
- * PARAMETERS:  filename         - File where table is located
- *              table            - Where a pointer to the table is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Get an ACPI table from a file
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_read_table_from_file(char *filename, struct acpi_table_header ** table)
-{
-	FILE *file;
-	u32 file_size;
-	u32 table_length;
-	acpi_status status = AE_ERROR;
-
-	/* Open the file, get current size */
-
-	file = fopen(filename, "rb");
-	if (!file) {
-		perror("Could not open input file");
-
-		if (errno == ENOENT) {
-			return (AE_NOT_EXIST);
-		}
-
-		return (status);
-	}
-
-	file_size = cm_get_file_size(file);
-	if (file_size == ACPI_UINT32_MAX) {
-		goto exit;
-	}
-
-	/* Get the entire file */
-
-	fprintf(stderr,
-		"Reading ACPI table from file %12s - Length %.8u (0x%06X)\n",
-		filename, file_size, file_size);
-
-	status = acpi_ut_read_table(file, table, &table_length);
-	if (ACPI_FAILURE(status)) {
-		acpi_os_printf("Could not get table from the file\n");
-	}
-
-exit:
-	fclose(file);
-	return (status);
-}
-
-#endif
diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c
index fda8b3def81c..8ad086ed1a06 100644
--- a/drivers/acpi/acpica/uthex.c
+++ b/drivers/acpi/acpica/uthex.c
@@ -48,7 +48,7 @@
 ACPI_MODULE_NAME("uthex")
 
 /* Hex to ASCII conversion table */
-static char acpi_gbl_hex_to_ascii[] = {
+static const char acpi_gbl_hex_to_ascii[] = {
 	'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D',
 	    'E', 'F'
 };
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 7956df1e263c..05ee76eec314 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -127,73 +127,6 @@ cleanup:
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_execute_SUB
- *
- * PARAMETERS:  device_node         - Node for the device
- *              return_id           - Where the _SUB is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Executes the _SUB control method that returns the subsystem
- *              ID of the device. The _SUB value is always a string containing
- *              either a valid PNP or ACPI ID.
- *
- *              NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_SUB(struct acpi_namespace_node *device_node,
-		    struct acpi_pnp_device_id **return_id)
-{
-	union acpi_operand_object *obj_desc;
-	struct acpi_pnp_device_id *sub;
-	u32 length;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(ut_execute_SUB);
-
-	status = acpi_ut_evaluate_object(device_node, METHOD_NAME__SUB,
-					 ACPI_BTYPE_STRING, &obj_desc);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get the size of the String to be returned, includes null terminator */
-
-	length = obj_desc->string.length + 1;
-
-	/* Allocate a buffer for the SUB */
-
-	sub =
-	    ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pnp_device_id) +
-				 (acpi_size) length);
-	if (!sub) {
-		status = AE_NO_MEMORY;
-		goto cleanup;
-	}
-
-	/* Area for the string starts after PNP_DEVICE_ID struct */
-
-	sub->string =
-	    ACPI_ADD_PTR(char, sub, sizeof(struct acpi_pnp_device_id));
-
-	/* Simply copy existing string */
-
-	strcpy(sub->string, obj_desc->string.pointer);
-	sub->length = length;
-	*return_id = sub;
-
-cleanup:
-
-	/* On exit, we must delete the return object */
-
-	acpi_ut_remove_reference(obj_desc);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ut_execute_UID
  *
  * PARAMETERS:  device_node         - Node for the device
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index ccd0745f011e..fd82a122785e 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -206,7 +206,6 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_gbl_next_owner_id_offset = 0;
 	acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
 	acpi_gbl_osi_mutex = NULL;
-	acpi_gbl_reg_methods_executed = FALSE;
 	acpi_gbl_max_loop_iterations = 0xFFFF;
 
 	/* Hardware oriented */
diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c
index f9ff100f0159..58b5d4236429 100644
--- a/drivers/acpi/acpica/utmath.c
+++ b/drivers/acpi/acpica/utmath.c
@@ -111,6 +111,7 @@ acpi_ut_short_divide(u64 dividend,
 	 */
 	ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor,
 			  quotient.part.hi, remainder32);
+
 	ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor,
 			  quotient.part.lo, remainder32);
 
@@ -179,6 +180,7 @@ acpi_ut_divide(u64 in_dividend,
 		 */
 		ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo,
 				  quotient.part.hi, partial1);
+
 		ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo,
 				  quotient.part.lo, remainder.part.lo);
 	}
@@ -206,12 +208,12 @@ acpi_ut_divide(u64 in_dividend,
 
 		ACPI_DIV_64_BY_32(normalized_dividend.part.hi,
 				  normalized_dividend.part.lo,
-				  normalized_divisor.part.lo,
-				  quotient.part.lo, partial1);
+				  normalized_divisor.part.lo, quotient.part.lo,
+				  partial1);
 
 		/*
-		 * The quotient is always 32 bits, and simply requires adjustment.
-		 * The 64-bit remainder must be generated.
+		 * The quotient is always 32 bits, and simply requires
+		 * adjustment. The 64-bit remainder must be generated.
 		 */
 		partial1 = quotient.part.lo * divisor.part.hi;
 		partial2.full = (u64) quotient.part.lo * divisor.part.lo;
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index bd4443bdcbad..eab1cfeb52cc 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -264,8 +264,8 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
 		 */
 		if ((!this_source_obj) ||
 		    (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) !=
-		     ACPI_DESC_TYPE_OPERAND)
-		    || (this_source_obj->common.type != ACPI_TYPE_PACKAGE)) {
+		     ACPI_DESC_TYPE_OPERAND) ||
+		    (this_source_obj->common.type != ACPI_TYPE_PACKAGE)) {
 			status =
 			    walk_callback(ACPI_COPY_TYPE_SIMPLE,
 					  this_source_obj, state, context);
@@ -318,9 +318,10 @@ acpi_ut_walk_package_tree(union acpi_operand_object *source_object,
 			 * The callback above returned a new target package object.
 			 */
 			acpi_ut_push_generic_state(&state_list, state);
-			state = acpi_ut_create_pkg_state(this_source_obj,
-							 state->pkg.
-							 this_target_obj, 0);
+			state =
+			    acpi_ut_create_pkg_state(this_source_obj,
+						     state->pkg.this_target_obj,
+						     0);
 			if (!state) {
 
 				/* Free any stacked Update State objects */
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index ce406e39b669..038ff849ad20 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -111,17 +111,6 @@ acpi_status acpi_ut_mutex_initialize(void)
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
-#ifdef ACPI_DEBUGGER
-
-	/* Debugger Support */
-
-	status = acpi_os_create_mutex(&acpi_gbl_db_command_ready);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	status = acpi_os_create_mutex(&acpi_gbl_db_command_complete);
-#endif
 
 	return_ACPI_STATUS(status);
 }
@@ -162,12 +151,6 @@ void acpi_ut_mutex_terminate(void)
 	/* Delete the reader/writer lock */
 
 	acpi_ut_delete_rw_lock(&acpi_gbl_namespace_rw_lock);
-
-#ifdef ACPI_DEBUGGER
-	acpi_os_delete_mutex(acpi_gbl_db_command_ready);
-	acpi_os_delete_mutex(acpi_gbl_db_command_complete);
-#endif
-
 	return_VOID;
 }
 
@@ -290,8 +273,9 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 			  (u32)this_thread_id,
 			  acpi_ut_get_mutex_name(mutex_id)));
 
-	status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
-				       ACPI_WAIT_FOREVER);
+	status =
+	    acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
+				  ACPI_WAIT_FOREVER);
 	if (ACPI_SUCCESS(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
 				  "Thread %u acquired Mutex [%s]\n",
diff --git a/drivers/acpi/acpica/utnonansi.c b/drivers/acpi/acpica/utnonansi.c
index 1d5f6b17b766..9c3cadc27fb8 100644
--- a/drivers/acpi/acpica/utnonansi.c
+++ b/drivers/acpi/acpica/utnonansi.c
@@ -282,8 +282,8 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 
 		/* Divide the digit into the correct position */
 
-		(void)acpi_ut_short_divide((dividend - (u64)this_digit),
-					   base, &quotient, NULL);
+		(void)acpi_ut_short_divide((dividend - (u64)this_digit), base,
+					   &quotient, NULL);
 
 		if (return_value > quotient) {
 			if (to_integer_op) {
diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index 7d83efe1ea29..787eccf6a1d5 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -112,9 +112,9 @@ union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
 
 		/* These types require a secondary object */
 
-		second_object = acpi_ut_allocate_object_desc_dbg(module_name,
-								 line_number,
-								 component_id);
+		second_object =
+		    acpi_ut_allocate_object_desc_dbg(module_name, line_number,
+						     component_id);
 		if (!second_object) {
 			acpi_ut_delete_object_desc(object);
 			return_PTR(NULL);
@@ -253,7 +253,8 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
 		buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
 		if (!buffer) {
 			ACPI_ERROR((AE_INFO, "Could not allocate size %u",
-				    (u32) buffer_size));
+				    (u32)buffer_size));
+
 			acpi_ut_remove_reference(buffer_desc);
 			return_PTR(NULL);
 		}
@@ -305,7 +306,8 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
 	string = ACPI_ALLOCATE_ZEROED(string_size + 1);
 	if (!string) {
 		ACPI_ERROR((AE_INFO, "Could not allocate size %u",
-			    (u32) string_size));
+			    (u32)string_size));
+
 		acpi_ut_remove_reference(string_desc);
 		return_PTR(NULL);
 	}
@@ -649,8 +651,9 @@ acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
 	info.object_space = 0;
 	info.num_packages = 1;
 
-	status = acpi_ut_walk_package_tree(internal_object, NULL,
-					   acpi_ut_get_element_length, &info);
+	status =
+	    acpi_ut_walk_package_tree(internal_object, NULL,
+				      acpi_ut_get_element_length, &info);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -660,7 +663,8 @@ acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
 	 * just add the length of the package objects themselves.
 	 * Round up to the next machine word.
 	 */
-	info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
+	info.length +=
+	    ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
 	    (acpi_size) info.num_packages;
 
 	/* Return the total package length */
@@ -692,8 +696,8 @@ acpi_ut_get_object_size(union acpi_operand_object *internal_object,
 	ACPI_FUNCTION_ENTRY();
 
 	if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
-	     ACPI_DESC_TYPE_OPERAND)
-	    && (internal_object->common.type == ACPI_TYPE_PACKAGE)) {
+	     ACPI_DESC_TYPE_OPERAND) &&
+	    (internal_object->common.type == ACPI_TYPE_PACKAGE)) {
 		status =
 		    acpi_ut_get_package_object_size(internal_object,
 						    obj_length);
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 8f3d203aed79..0809d73193e1 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -269,9 +269,10 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name)
 	previous_interface = next_interface = acpi_gbl_supported_interfaces;
 	while (next_interface) {
 		if (!strcmp(interface_name, next_interface->name)) {
-
-			/* Found: name is in either the static list or was added at runtime */
-
+			/*
+			 * Found: name is in either the static list
+			 * or was added at runtime
+			 */
 			if (next_interface->flags & ACPI_OSI_DYNAMIC) {
 
 				/* Interface was added dynamically, remove and free it */
@@ -288,8 +289,8 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name)
 				ACPI_FREE(next_interface);
 			} else {
 				/*
-				 * Interface is in static list. If marked invalid, then it
-				 * does not actually exist. Else, mark it invalid.
+				 * Interface is in static list. If marked invalid, then
+				 * it does not actually exist. Else, mark it invalid.
 				 */
 				if (next_interface->flags & ACPI_OSI_INVALID) {
 					return (AE_NOT_EXIST);
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
index 2959217067cb..ebb811c43c89 100644
--- a/drivers/acpi/acpica/utownerid.c
+++ b/drivers/acpi/acpica/utownerid.c
@@ -73,8 +73,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 	/* Guard against multiple allocations of ID to the same location */
 
 	if (*owner_id) {
-		ACPI_ERROR((AE_INFO, "Owner ID [0x%2.2X] already exists",
-			    *owner_id));
+		ACPI_ERROR((AE_INFO,
+			    "Owner ID [0x%2.2X] already exists", *owner_id));
 		return_ACPI_STATUS(AE_ALREADY_EXISTS);
 	}
 
@@ -87,8 +87,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 
 	/*
 	 * Find a free owner ID, cycle through all possible IDs on repeated
-	 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
-	 * to be scanned twice.
+	 * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index
+	 * may have to be scanned twice.
 	 */
 	for (i = 0, j = acpi_gbl_last_owner_id_index;
 	     i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
@@ -141,8 +141,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 	 * they are released when a table is unloaded or a method completes
 	 * execution.
 	 *
-	 * If this error happens, there may be very deep nesting of invoked control
-	 * methods, or there may be a bug where the IDs are not released.
+	 * If this error happens, there may be very deep nesting of invoked
+	 * control methods, or there may be a bug where the IDs are not released.
 	 */
 	status = AE_OWNER_ID_LIMIT;
 	ACPI_ERROR((AE_INFO,
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 97898ed71b4b..9f8e415bf0af 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -225,8 +225,10 @@ const union acpi_predefined_info *acpi_ut_match_resource_name(char *name)
 {
 	const union acpi_predefined_info *this_name;
 
-	/* Quick check for a predefined name, first character must be underscore */
-
+	/*
+	 * Quick check for a predefined name, first character must
+	 * be underscore
+	 */
 	if (name[0] != '_') {
 		return (NULL);
 	}
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index b26297c5de49..01f04da779c5 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -314,8 +314,9 @@ static char *acpi_ut_format_number(char *string,
 	if (need_prefix) {
 		string = acpi_ut_bound_string_output(string, end, '0');
 		if (base == 16) {
-			string = acpi_ut_bound_string_output(string, end,
-							     upper ? 'X' : 'x');
+			string =
+			    acpi_ut_bound_string_output(string, end,
+							upper ? 'X' : 'x');
 		}
 	}
 	if (!(type & ACPI_FORMAT_LEFT)) {
@@ -400,6 +401,7 @@ acpi_ut_vsnprintf(char *string,
 			} else {
 				break;
 			}
+
 		} while (1);
 
 		/* Process width */
@@ -429,6 +431,7 @@ acpi_ut_vsnprintf(char *string,
 				++format;
 				precision = va_arg(args, int);
 			}
+
 			if (precision < 0) {
 				precision = 0;
 			}
@@ -488,10 +491,12 @@ acpi_ut_vsnprintf(char *string,
 									' ');
 				}
 			}
+
 			for (i = 0; i < length; ++i) {
 				pos = acpi_ut_bound_string_output(pos, end, *s);
 				++s;
 			}
+
 			while (length < width--) {
 				pos =
 				    acpi_ut_bound_string_output(pos, end, ' ');
@@ -529,9 +534,9 @@ acpi_ut_vsnprintf(char *string,
 			}
 
 			p = va_arg(args, void *);
-			pos = acpi_ut_format_number(pos, end,
-						    ACPI_TO_INTEGER(p), 16,
-						    width, precision, type);
+			pos =
+			    acpi_ut_format_number(pos, end, ACPI_TO_INTEGER(p),
+						  16, width, precision, type);
 			continue;
 
 		default:
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index b3505dbc715e..d50b41c4daa7 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -441,8 +441,8 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
 		    acpi_ut_validate_resource(walk_state, aml, &resource_index);
 		if (ACPI_FAILURE(status)) {
 			/*
-			 * Exit on failure. Cannot continue because the descriptor length
-			 * may be bogus also.
+			 * Exit on failure. Cannot continue because the descriptor
+			 * length may be bogus also.
 			 */
 			return_ACPI_STATUS(status);
 		}
@@ -568,8 +568,8 @@ acpi_ut_validate_resource(struct acpi_walk_state *walk_state,
 	}
 
 	/*
-	 * Check validity of the resource type, via acpi_gbl_resource_types. Zero
-	 * indicates an invalid resource.
+	 * Check validity of the resource type, via acpi_gbl_resource_types.
+	 * Zero indicates an invalid resource.
 	 */
 	if (!acpi_gbl_resource_types[resource_index]) {
 		goto invalid_resource;
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index f201171c5dda..0050e00997ed 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -246,6 +246,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
 	state->pkg.dest_object = external_object;
 	state->pkg.index = index;
 	state->pkg.num_packages = 1;
+
 	return (state);
 }
 
@@ -279,6 +280,7 @@ union acpi_generic_state *acpi_ut_create_control_state(void)
 
 	state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL;
 	state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
+
 	return (state);
 }
 
@@ -304,5 +306,6 @@ void acpi_ut_delete_generic_state(union acpi_generic_state *state)
 	if (state) {
 		(void)acpi_os_release_object(acpi_gbl_state_cache, state);
 	}
+
 	return;
 }
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 4ddd105d9741..958b2f7b552d 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -135,6 +135,7 @@ void acpi_ut_print_string(char *string, u16 max_length)
 			break;
 		}
 	}
+
 	acpi_os_printf("\"");
 
 	if (i == max_length && string[i]) {
@@ -239,6 +240,14 @@ void acpi_ut_repair_name(char *name)
 
 	ACPI_FUNCTION_NAME(ut_repair_name);
 
+	/*
+	 * Special case for the root node. This can happen if we get an
+	 * error during the execution of module-level code.
+	 */
+	if (ACPI_COMPARE_NAME(name, "\\___")) {
+		return;
+	}
+
 	ACPI_MOVE_NAME(&original_name, name);
 
 	/* Check each character in the name */
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 9a7dc8196a5d..ea698e98442e 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -150,9 +150,9 @@ void *acpi_ut_allocate_and_track(acpi_size size,
 		return (NULL);
 	}
 
-	status = acpi_ut_track_allocation(allocation, size,
-					  ACPI_MEM_MALLOC, component, module,
-					  line);
+	status =
+	    acpi_ut_track_allocation(allocation, size, ACPI_MEM_MALLOC,
+				     component, module, line);
 	if (ACPI_FAILURE(status)) {
 		acpi_os_free(allocation);
 		return (NULL);
@@ -161,6 +161,7 @@ void *acpi_ut_allocate_and_track(acpi_size size,
 	acpi_gbl_global_list->total_allocated++;
 	acpi_gbl_global_list->total_size += (u32)size;
 	acpi_gbl_global_list->current_total_size += (u32)size;
+
 	if (acpi_gbl_global_list->current_total_size >
 	    acpi_gbl_global_list->max_occupied) {
 		acpi_gbl_global_list->max_occupied =
@@ -223,6 +224,7 @@ void *acpi_ut_allocate_zeroed_and_track(acpi_size size,
 	acpi_gbl_global_list->total_allocated++;
 	acpi_gbl_global_list->total_size += (u32)size;
 	acpi_gbl_global_list->current_total_size += (u32)size;
+
 	if (acpi_gbl_global_list->current_total_size >
 	    acpi_gbl_global_list->max_occupied) {
 		acpi_gbl_global_list->max_occupied =
@@ -269,8 +271,8 @@ acpi_ut_free_and_track(void *allocation,
 	acpi_gbl_global_list->total_freed++;
 	acpi_gbl_global_list->current_total_size -= debug_block->size;
 
-	status = acpi_ut_remove_allocation(debug_block,
-					   component, module, line);
+	status =
+	    acpi_ut_remove_allocation(debug_block, component, module, line);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status, "Could not free memory"));
 	}
@@ -525,35 +527,35 @@ void acpi_ut_dump_allocation_info(void)
 
 /*
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Current allocations",
-			  mem_list->current_count,
-			  ROUND_UP_TO_1K (mem_list->current_size)));
+		("%30s: %4d (%3d Kb)\n", "Current allocations",
+		mem_list->current_count,
+		ROUND_UP_TO_1K (mem_list->current_size)));
 
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
-			  mem_list->max_concurrent_count,
-			  ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
+		("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
+		mem_list->max_concurrent_count,
+		ROUND_UP_TO_1K (mem_list->max_concurrent_size)));
 
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
-			  running_object_count,
-			  ROUND_UP_TO_1K (running_object_size)));
+		("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
+		running_object_count,
+		ROUND_UP_TO_1K (running_object_size)));
 
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
-			  running_alloc_count,
-			  ROUND_UP_TO_1K (running_alloc_size)));
+		("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
+		running_alloc_count,
+		ROUND_UP_TO_1K (running_alloc_size)));
 
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Current Nodes",
-			  acpi_gbl_current_node_count,
-			  ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
+		("%30s: %4d (%3d Kb)\n", "Current Nodes",
+		acpi_gbl_current_node_count,
+		ROUND_UP_TO_1K (acpi_gbl_current_node_size)));
 
 	ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
-			  ("%30s: %4d (%3d Kb)\n", "Max Nodes",
-			  acpi_gbl_max_concurrent_node_count,
-			  ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
-					 sizeof (struct acpi_namespace_node)))));
+		("%30s: %4d (%3d Kb)\n", "Max Nodes",
+		acpi_gbl_max_concurrent_node_count,
+		ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count *
+			sizeof (struct acpi_namespace_node)))));
 */
 	return_VOID;
 }
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index f9c8f9ce1f0f..9f3f0a1591f6 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -154,7 +154,6 @@ acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
 	 * Populate the return buffer
 	 */
 	info_ptr = (struct acpi_system_info *)out_buffer->pointer;
-
 	info_ptr->acpi_ca_version = ACPI_CA_VERSION;
 
 	/* System flags (ACPI capabilities) */
@@ -216,7 +215,6 @@ acpi_status acpi_get_statistics(struct acpi_statistics *stats)
 	/* Other counters */
 
 	stats->method_count = acpi_method_count;
-
 	return_ACPI_STATUS(AE_OK);
 }
 
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index 98d578753101..f6cbaf451dbf 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -117,6 +117,7 @@ acpi_exception(const char *module_name,
 		acpi_os_printf(ACPI_MSG_EXCEPTION "%s, ",
 			       acpi_format_exception(status));
 	}
+
 	va_start(arg_list, format);
 	acpi_os_vprintf(format, arg_list);
 	ACPI_MSG_SUFFIX;
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index a7137ec28447..e38facd3e32f 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -147,6 +147,28 @@ acpi_status __init acpi_enable_subsystem(u32 flags)
 
 	ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
 
+	/*
+	 * The early initialization phase is complete. The namespace is loaded,
+	 * and we can now support address spaces other than Memory, I/O, and
+	 * PCI_Config.
+	 */
+	acpi_gbl_early_initialization = FALSE;
+
+	/*
+	 * Install the default operation region handlers. These are the
+	 * handlers that are defined by the ACPI specification to be
+	 * "always accessible" -- namely, system_memory, system_IO, and
+	 * PCI_Config. This also means that no _REG methods need to be
+	 * run for these address spaces. We need to have these handlers
+	 * installed before any AML code can be executed, especially any
+	 * module-level code (11/2015).
+	 */
+	status = acpi_ev_install_region_handlers();
+	if (ACPI_FAILURE(status)) {
+		ACPI_EXCEPTION((AE_INFO, status,
+				"During Region initialization"));
+		return_ACPI_STATUS(status);
+	}
 #if (!ACPI_REDUCED_HARDWARE)
 
 	/* Enable ACPI mode */
@@ -175,23 +197,7 @@ acpi_status __init acpi_enable_subsystem(u32 flags)
 			return_ACPI_STATUS(status);
 		}
 	}
-#endif				/* !ACPI_REDUCED_HARDWARE */
-
-	/*
-	 * Install the default op_region handlers. These are installed unless
-	 * other handlers have already been installed via the
-	 * install_address_space_handler interface.
-	 */
-	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "[Init] Installing default address space handlers\n"));
 
-		status = acpi_ev_install_region_handlers();
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-	}
-#if (!ACPI_REDUCED_HARDWARE)
 	/*
 	 * Initialize ACPI Event handling (Fixed and General Purpose)
 	 *
@@ -261,6 +267,7 @@ acpi_status __init acpi_initialize_objects(u32 flags)
 	 * initialized, even if they contain executable AML (see the call to
 	 * acpi_ns_initialize_objects below).
 	 */
+	acpi_gbl_reg_methods_enabled = TRUE;
 	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 				  "[Init] Executing _REG OpRegion methods\n"));
@@ -285,8 +292,14 @@ acpi_status __init acpi_initialize_objects(u32 flags)
 	 * outside of any control method is wrapped with a temporary control
 	 * method object and placed on a global list. The methods on this list
 	 * are executed below.
+	 *
+	 * This case executes the module-level code for all tables only after
+	 * all of the tables have been loaded. It is a legacy option and is
+	 * not compatible with other ACPI implementations. See acpi_ns_load_table.
 	 */
-	acpi_ns_exec_module_code_list();
+	if (acpi_gbl_group_module_level_code) {
+		acpi_ns_exec_module_code_list();
+	}
 
 	/*
 	 * Initialize the objects that remain uninitialized. This runs the
diff --git a/drivers/acpi/acpica/utxfmutex.c b/drivers/acpi/acpica/utxfmutex.c
index f2606af3364c..95d6123a7010 100644
--- a/drivers/acpi/acpica/utxfmutex.c
+++ b/drivers/acpi/acpica/utxfmutex.c
@@ -89,9 +89,9 @@ acpi_ut_get_mutex_object(acpi_handle handle,
 
 	mutex_node = handle;
 	if (pathname != NULL) {
-		status = acpi_get_handle(handle, pathname,
-					 ACPI_CAST_PTR(acpi_handle,
-						       &mutex_node));
+		status =
+		    acpi_get_handle(handle, pathname,
+				    ACPI_CAST_PTR(acpi_handle, &mutex_node));
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a212cefae524..891c42d1cd65 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -180,14 +180,15 @@ static void acpi_print_osc_error(acpi_handle handle,
 	int i;
 
 	if (ACPI_FAILURE(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer)))
-		printk(KERN_DEBUG "%s\n", error);
+		printk(KERN_DEBUG "%s: %s\n", context->uuid_str, error);
 	else {
-		printk(KERN_DEBUG "%s:%s\n", (char *)buffer.pointer, error);
+		printk(KERN_DEBUG "%s (%s): %s\n",
+		       (char *)buffer.pointer, context->uuid_str, error);
 		kfree(buffer.pointer);
 	}
-	printk(KERN_DEBUG"_OSC request data:");
+	printk(KERN_DEBUG "_OSC request data:");
 	for (i = 0; i < context->cap.length; i += sizeof(u32))
-		printk("%x ", *((u32 *)(context->cap.pointer + i)));
+		printk(" %x", *((u32 *)(context->cap.pointer + i)));
 	printk("\n");
 }
 
@@ -1094,6 +1095,7 @@ static int __init acpi_init(void)
 	acpi_debugfs_init();
 	acpi_sleep_proc_init();
 	acpi_wakeup_device_init();
+	acpi_debugger_init();
 	return 0;
 }
 
diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
index fa4585a6914e..ee9e0f27b2bf 100644
--- a/drivers/acpi/gsi.c
+++ b/drivers/acpi/gsi.c
@@ -17,25 +17,6 @@ enum acpi_irq_model_id acpi_irq_model;
 
 static struct fwnode_handle *acpi_gsi_domain_id;
 
-static unsigned int acpi_gsi_get_irq_type(int trigger, int polarity)
-{
-	switch (polarity) {
-	case ACPI_ACTIVE_LOW:
-		return trigger == ACPI_EDGE_SENSITIVE ?
-		       IRQ_TYPE_EDGE_FALLING :
-		       IRQ_TYPE_LEVEL_LOW;
-	case ACPI_ACTIVE_HIGH:
-		return trigger == ACPI_EDGE_SENSITIVE ?
-		       IRQ_TYPE_EDGE_RISING :
-		       IRQ_TYPE_LEVEL_HIGH;
-	case ACPI_ACTIVE_BOTH:
-		if (trigger == ACPI_EDGE_SENSITIVE)
-			return IRQ_TYPE_EDGE_BOTH;
-	default:
-		return IRQ_TYPE_NONE;
-	}
-}
-
 /**
  * acpi_gsi_to_irq() - Retrieve the linux irq number for a given GSI
  * @gsi: GSI IRQ number to map
@@ -82,7 +63,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger,
 
 	fwspec.fwnode = acpi_gsi_domain_id;
 	fwspec.param[0] = gsi;
-	fwspec.param[1] = acpi_gsi_get_irq_type(trigger, polarity);
+	fwspec.param[1] = acpi_dev_get_irq_type(trigger, polarity);
 	fwspec.param_count = 2;
 
 	return irq_create_fwspec_mapping(&fwspec);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 11d87bf67e73..1e6833a5cd44 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -86,6 +86,14 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent);
 #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \
 			  ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING)
 
+extern struct list_head acpi_bus_id_list;
+
+struct acpi_device_bus_id {
+	char bus_id[15];
+	unsigned int instance_no;
+	struct list_head node;
+};
+
 int acpi_device_add(struct acpi_device *device,
 		    void (*release)(struct device *));
 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index aa45d4802707..ad6d8c6b777e 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/ndctl.h>
+#include <linux/delay.h>
 #include <linux/list.h>
 #include <linux/acpi.h>
 #include <linux/sort.h>
@@ -1473,6 +1474,201 @@ static void acpi_nfit_blk_region_disable(struct nvdimm_bus *nvdimm_bus,
 	/* devm will free nfit_blk */
 }
 
+static int ars_get_cap(struct nvdimm_bus_descriptor *nd_desc,
+		struct nd_cmd_ars_cap *cmd, u64 addr, u64 length)
+{
+	cmd->address = addr;
+	cmd->length = length;
+
+	return nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_CAP, cmd,
+			sizeof(*cmd));
+}
+
+static int ars_do_start(struct nvdimm_bus_descriptor *nd_desc,
+		struct nd_cmd_ars_start *cmd, u64 addr, u64 length)
+{
+	int rc;
+
+	cmd->address = addr;
+	cmd->length = length;
+	cmd->type = ND_ARS_PERSISTENT;
+
+	while (1) {
+		rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_START, cmd,
+				sizeof(*cmd));
+		if (rc)
+			return rc;
+		switch (cmd->status) {
+		case 0:
+			return 0;
+		case 1:
+			/* ARS unsupported, but we should never get here */
+			return 0;
+		case 2:
+			return -EINVAL;
+		case 3:
+			/* ARS is in progress */
+			msleep(1000);
+			break;
+		default:
+			return -ENXIO;
+		}
+	}
+}
+
+static int ars_get_status(struct nvdimm_bus_descriptor *nd_desc,
+		struct nd_cmd_ars_status *cmd)
+{
+	int rc;
+
+	while (1) {
+		rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_STATUS, cmd,
+			sizeof(*cmd));
+		if (rc || cmd->status & 0xffff)
+			return -ENXIO;
+
+		/* Check extended status (Upper two bytes) */
+		switch (cmd->status >> 16) {
+		case 0:
+			return 0;
+		case 1:
+			/* ARS is in progress */
+			msleep(1000);
+			break;
+		case 2:
+			/* No ARS performed for the current boot */
+			return 0;
+		default:
+			return -ENXIO;
+		}
+	}
+}
+
+static int ars_status_process_records(struct nvdimm_bus *nvdimm_bus,
+		struct nd_cmd_ars_status *ars_status, u64 start)
+{
+	int rc;
+	u32 i;
+
+	/*
+	 * The address field returned by ars_status should be either
+	 * less than or equal to the address we last started ARS for.
+	 * The (start, length) returned by ars_status should also have
+	 * non-zero overlap with the range we started ARS for.
+	 * If this is not the case, bail.
+	 */
+	if (ars_status->address > start ||
+			(ars_status->address + ars_status->length < start))
+		return -ENXIO;
+
+	for (i = 0; i < ars_status->num_records; i++) {
+		rc = nvdimm_bus_add_poison(nvdimm_bus,
+				ars_status->records[i].err_address,
+				ars_status->records[i].length);
+		if (rc)
+			return rc;
+	}
+
+	return 0;
+}
+
+static int acpi_nfit_find_poison(struct acpi_nfit_desc *acpi_desc,
+		struct nd_region_desc *ndr_desc)
+{
+	struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc;
+	struct nvdimm_bus *nvdimm_bus = acpi_desc->nvdimm_bus;
+	struct nd_cmd_ars_status *ars_status = NULL;
+	struct nd_cmd_ars_start *ars_start = NULL;
+	struct nd_cmd_ars_cap *ars_cap = NULL;
+	u64 start, len, cur, remaining;
+	int rc;
+
+	ars_cap = kzalloc(sizeof(*ars_cap), GFP_KERNEL);
+	if (!ars_cap)
+		return -ENOMEM;
+
+	start = ndr_desc->res->start;
+	len = ndr_desc->res->end - ndr_desc->res->start + 1;
+
+	rc = ars_get_cap(nd_desc, ars_cap, start, len);
+	if (rc)
+		goto out;
+
+	/*
+	 * If ARS is unsupported, or if the 'Persistent Memory Scrub' flag in
+	 * extended status is not set, skip this but continue initialization
+	 */
+	if ((ars_cap->status & 0xffff) ||
+		!(ars_cap->status >> 16 & ND_ARS_PERSISTENT)) {
+		dev_warn(acpi_desc->dev,
+			"ARS unsupported (status: 0x%x), won't create an error list\n",
+			ars_cap->status);
+		goto out;
+	}
+
+	/*
+	 * Check if a full-range ARS has been run. If so, use those results
+	 * without having to start a new ARS.
+	 */
+	ars_status = kzalloc(ars_cap->max_ars_out + sizeof(*ars_status),
+			GFP_KERNEL);
+	if (!ars_status) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	rc = ars_get_status(nd_desc, ars_status);
+	if (rc)
+		goto out;
+
+	if (ars_status->address <= start &&
+		(ars_status->address + ars_status->length >= start + len)) {
+		rc = ars_status_process_records(nvdimm_bus, ars_status, start);
+		goto out;
+	}
+
+	/*
+	 * ARS_STATUS can overflow if the number of poison entries found is
+	 * greater than the maximum buffer size (ars_cap->max_ars_out)
+	 * To detect overflow, check if the length field of ars_status
+	 * is less than the length we supplied. If so, process the
+	 * error entries we got, adjust the start point, and start again
+	 */
+	ars_start = kzalloc(sizeof(*ars_start), GFP_KERNEL);
+	if (!ars_start)
+		return -ENOMEM;
+
+	cur = start;
+	remaining = len;
+	do {
+		u64 done, end;
+
+		rc = ars_do_start(nd_desc, ars_start, cur, remaining);
+		if (rc)
+			goto out;
+
+		rc = ars_get_status(nd_desc, ars_status);
+		if (rc)
+			goto out;
+
+		rc = ars_status_process_records(nvdimm_bus, ars_status, cur);
+		if (rc)
+			goto out;
+
+		end = min(cur + remaining,
+			ars_status->address + ars_status->length);
+		done = end - cur;
+		cur += done;
+		remaining -= done;
+	} while (remaining);
+
+ out:
+	kfree(ars_cap);
+	kfree(ars_start);
+	kfree(ars_status);
+	return rc;
+}
+
 static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
 		struct nd_mapping *nd_mapping, struct nd_region_desc *ndr_desc,
 		struct acpi_nfit_memory_map *memdev,
@@ -1585,6 +1781,13 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
 
 	nvdimm_bus = acpi_desc->nvdimm_bus;
 	if (nfit_spa_type(spa) == NFIT_SPA_PM) {
+		rc = acpi_nfit_find_poison(acpi_desc, ndr_desc);
+		if (rc) {
+			dev_err(acpi_desc->dev,
+				"error while performing ARS to find poison: %d\n",
+				rc);
+			return rc;
+		}
 		if (!nvdimm_pmem_region_create(nvdimm_bus, ndr_desc))
 			return -ENOMEM;
 	} else if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE) {
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 32d684af0ec7..67da6fb72274 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -220,6 +220,7 @@ void acpi_os_printf(const char *fmt, ...)
 	acpi_os_vprintf(fmt, args);
 	va_end(args);
 }
+EXPORT_SYMBOL(acpi_os_printf);
 
 void acpi_os_vprintf(const char *fmt, va_list args)
 {
@@ -234,7 +235,8 @@ void acpi_os_vprintf(const char *fmt, va_list args)
 		printk(KERN_CONT "%s", buffer);
 	}
 #else
-	printk(KERN_CONT "%s", buffer);
+	if (acpi_debugger_write_log(buffer) < 0)
+		printk(KERN_CONT "%s", buffer);
 #endif
 }
 
@@ -364,6 +366,19 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
 		iounmap(vaddr);
 }
 
+/**
+ * acpi_os_map_iomem - Get a virtual address for a given physical address range.
+ * @phys: Start of the physical address range to map.
+ * @size: Size of the physical address range to map.
+ *
+ * Look up the given physical address range in the list of existing ACPI memory
+ * mappings.  If found, get a reference to it and return a pointer to it (its
+ * virtual address).  If not found, map it, add it to that list and return a
+ * pointer to it.
+ *
+ * During early init (when acpi_gbl_permanent_mmap has not been set yet) this
+ * routine simply calls __acpi_map_table() to get the job done.
+ */
 void __iomem *__init_refok
 acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
 {
@@ -439,6 +454,20 @@ static void acpi_os_map_cleanup(struct acpi_ioremap *map)
 	}
 }
 
+/**
+ * acpi_os_unmap_iomem - Drop a memory mapping reference.
+ * @virt: Start of the address range to drop a reference to.
+ * @size: Size of the address range to drop a reference to.
+ *
+ * Look up the given virtual address range in the list of existing ACPI memory
+ * mappings, drop a reference to it and unmap it if there are no more active
+ * references to it.
+ *
+ * During early init (when acpi_gbl_permanent_mmap has not been set yet) this
+ * routine simply calls __acpi_unmap_table() to get the job done.  Since
+ * __acpi_unmap_table() is an __init function, the __ref annotation is needed
+ * here.
+ */
 void __ref acpi_os_unmap_iomem(void __iomem *virt, acpi_size size)
 {
 	struct acpi_ioremap *map;
@@ -1101,6 +1130,200 @@ static void acpi_os_execute_deferred(struct work_struct *work)
 	kfree(dpc);
 }
 
+#ifdef CONFIG_ACPI_DEBUGGER
+static struct acpi_debugger acpi_debugger;
+static bool acpi_debugger_initialized;
+
+int acpi_register_debugger(struct module *owner,
+			   const struct acpi_debugger_ops *ops)
+{
+	int ret = 0;
+
+	mutex_lock(&acpi_debugger.lock);
+	if (acpi_debugger.ops) {
+		ret = -EBUSY;
+		goto err_lock;
+	}
+
+	acpi_debugger.owner = owner;
+	acpi_debugger.ops = ops;
+
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+EXPORT_SYMBOL(acpi_register_debugger);
+
+void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
+{
+	mutex_lock(&acpi_debugger.lock);
+	if (ops == acpi_debugger.ops) {
+		acpi_debugger.ops = NULL;
+		acpi_debugger.owner = NULL;
+	}
+	mutex_unlock(&acpi_debugger.lock);
+}
+EXPORT_SYMBOL(acpi_unregister_debugger);
+
+int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context)
+{
+	int ret;
+	int (*func)(acpi_osd_exec_callback, void *);
+	struct module *owner;
+
+	if (!acpi_debugger_initialized)
+		return -ENODEV;
+	mutex_lock(&acpi_debugger.lock);
+	if (!acpi_debugger.ops) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	if (!try_module_get(acpi_debugger.owner)) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	func = acpi_debugger.ops->create_thread;
+	owner = acpi_debugger.owner;
+	mutex_unlock(&acpi_debugger.lock);
+
+	ret = func(function, context);
+
+	mutex_lock(&acpi_debugger.lock);
+	module_put(owner);
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+
+ssize_t acpi_debugger_write_log(const char *msg)
+{
+	ssize_t ret;
+	ssize_t (*func)(const char *);
+	struct module *owner;
+
+	if (!acpi_debugger_initialized)
+		return -ENODEV;
+	mutex_lock(&acpi_debugger.lock);
+	if (!acpi_debugger.ops) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	if (!try_module_get(acpi_debugger.owner)) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	func = acpi_debugger.ops->write_log;
+	owner = acpi_debugger.owner;
+	mutex_unlock(&acpi_debugger.lock);
+
+	ret = func(msg);
+
+	mutex_lock(&acpi_debugger.lock);
+	module_put(owner);
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+
+ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length)
+{
+	ssize_t ret;
+	ssize_t (*func)(char *, size_t);
+	struct module *owner;
+
+	if (!acpi_debugger_initialized)
+		return -ENODEV;
+	mutex_lock(&acpi_debugger.lock);
+	if (!acpi_debugger.ops) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	if (!try_module_get(acpi_debugger.owner)) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	func = acpi_debugger.ops->read_cmd;
+	owner = acpi_debugger.owner;
+	mutex_unlock(&acpi_debugger.lock);
+
+	ret = func(buffer, buffer_length);
+
+	mutex_lock(&acpi_debugger.lock);
+	module_put(owner);
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+
+int acpi_debugger_wait_command_ready(void)
+{
+	int ret;
+	int (*func)(bool, char *, size_t);
+	struct module *owner;
+
+	if (!acpi_debugger_initialized)
+		return -ENODEV;
+	mutex_lock(&acpi_debugger.lock);
+	if (!acpi_debugger.ops) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	if (!try_module_get(acpi_debugger.owner)) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	func = acpi_debugger.ops->wait_command_ready;
+	owner = acpi_debugger.owner;
+	mutex_unlock(&acpi_debugger.lock);
+
+	ret = func(acpi_gbl_method_executing,
+		   acpi_gbl_db_line_buf, ACPI_DB_LINE_BUFFER_SIZE);
+
+	mutex_lock(&acpi_debugger.lock);
+	module_put(owner);
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+
+int acpi_debugger_notify_command_complete(void)
+{
+	int ret;
+	int (*func)(void);
+	struct module *owner;
+
+	if (!acpi_debugger_initialized)
+		return -ENODEV;
+	mutex_lock(&acpi_debugger.lock);
+	if (!acpi_debugger.ops) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	if (!try_module_get(acpi_debugger.owner)) {
+		ret = -ENODEV;
+		goto err_lock;
+	}
+	func = acpi_debugger.ops->notify_command_complete;
+	owner = acpi_debugger.owner;
+	mutex_unlock(&acpi_debugger.lock);
+
+	ret = func();
+
+	mutex_lock(&acpi_debugger.lock);
+	module_put(owner);
+err_lock:
+	mutex_unlock(&acpi_debugger.lock);
+	return ret;
+}
+
+int __init acpi_debugger_init(void)
+{
+	mutex_init(&acpi_debugger.lock);
+	acpi_debugger_initialized = true;
+	return 0;
+}
+#endif
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_os_execute
@@ -1127,6 +1350,15 @@ acpi_status acpi_os_execute(acpi_execute_type type,
 			  "Scheduling function [%p(%p)] for deferred execution.\n",
 			  function, context));
 
+	if (type == OSL_DEBUGGER_MAIN_THREAD) {
+		ret = acpi_debugger_create_thread(function, context);
+		if (ret) {
+			pr_err("Call to kthread_create() failed.\n");
+			status = AE_ERROR;
+		}
+		goto out_thread;
+	}
+
 	/*
 	 * Allocate/initialize DPC structure.  Note that this memory will be
 	 * freed by the callee.  The kernel handles the work_struct list  in a
@@ -1151,11 +1383,17 @@ acpi_status acpi_os_execute(acpi_execute_type type,
 	if (type == OSL_NOTIFY_HANDLER) {
 		queue = kacpi_notify_wq;
 		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
-	} else {
+	} else if (type == OSL_GPE_HANDLER) {
 		queue = kacpid_wq;
 		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+	} else {
+		pr_err("Unsupported os_execute type %d.\n", type);
+		status = AE_ERROR;
 	}
 
+	if (ACPI_FAILURE(status))
+		goto err_workqueue;
+
 	/*
 	 * On some machines, a software-initiated SMI causes corruption unless
 	 * the SMI runs on CPU 0.  An SMI can be initiated by any AML, but
@@ -1164,13 +1402,15 @@ acpi_status acpi_os_execute(acpi_execute_type type,
 	 * queueing on CPU 0.
 	 */
 	ret = queue_work_on(0, queue, &dpc->work);
-
 	if (!ret) {
 		printk(KERN_ERR PREFIX
 			  "Call to queue_work() failed.\n");
 		status = AE_ERROR;
-		kfree(dpc);
 	}
+err_workqueue:
+	if (ACPI_FAILURE(status))
+		kfree(dpc);
+out_thread:
 	return status;
 }
 EXPORT_SYMBOL(acpi_os_execute);
@@ -1358,10 +1598,39 @@ acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read)
 		chars = strlen(buffer) - 1;
 		buffer[chars] = '\0';
 	}
+#else
+	int ret;
+
+	ret = acpi_debugger_read_cmd(buffer, buffer_length);
+	if (ret < 0)
+		return AE_ERROR;
+	if (bytes_read)
+		*bytes_read = ret;
 #endif
 
 	return AE_OK;
 }
+EXPORT_SYMBOL(acpi_os_get_line);
+
+acpi_status acpi_os_wait_command_ready(void)
+{
+	int ret;
+
+	ret = acpi_debugger_wait_command_ready();
+	if (ret < 0)
+		return AE_ERROR;
+	return AE_OK;
+}
+
+acpi_status acpi_os_notify_command_complete(void)
+{
+	int ret;
+
+	ret = acpi_debugger_notify_command_complete();
+	if (ret < 0)
+		return AE_ERROR;
+	return AE_OK;
+}
 
 acpi_status acpi_os_signal(u32 function, void *info)
 {
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index c9336751e5e3..d30184c7f3bc 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -131,9 +131,6 @@ static void do_prt_fixups(struct acpi_prt_entry *entry,
 		quirk = &prt_quirks[i];
 
 		/* All current quirks involve link devices, not GSIs */
-		if (!prt->source)
-			continue;
-
 		if (dmi_check_system(quirk->system) &&
 		    entry->id.segment == quirk->segment &&
 		    entry->id.bus == quirk->bus &&
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 7c8408b946ca..fa2863567eed 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -4,6 +4,7 @@
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  *  Copyright (C) 2002       Dominik Brodowski <devel@brodo.de>
+ *  Copyright (c) 2015, The Linux Foundation. All rights reserved.
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -67,12 +68,12 @@ static struct acpi_scan_handler pci_link_handler = {
  * later even the link is disable. Instead, we just repick the active irq
  */
 struct acpi_pci_link_irq {
-	u8 active;		/* Current IRQ */
+	u32 active;		/* Current IRQ */
 	u8 triggering;		/* All IRQs */
 	u8 polarity;		/* All IRQs */
 	u8 resource_type;
 	u8 possible_count;
-	u8 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
+	u32 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
 	u8 initialized:1;
 	u8 reserved:7;
 };
@@ -437,7 +438,6 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
  * enabled system.
  */
 
-#define ACPI_MAX_IRQS		256
 #define ACPI_MAX_ISA_IRQ	16
 
 #define PIRQ_PENALTY_PCI_AVAILABLE	(0)
@@ -447,7 +447,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
 #define PIRQ_PENALTY_ISA_USED		(16*16*16*16*16)
 #define PIRQ_PENALTY_ISA_ALWAYS		(16*16*16*16*16*16)
 
-static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
+static int acpi_irq_isa_penalty[ACPI_MAX_ISA_IRQ] = {
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ0 timer */
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ1 keyboard */
 	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ2 cascade */
@@ -464,9 +464,68 @@ static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
 	PIRQ_PENALTY_ISA_USED,		/* IRQ13 fpe, sometimes */
 	PIRQ_PENALTY_ISA_USED,		/* IRQ14 ide0 */
 	PIRQ_PENALTY_ISA_USED,		/* IRQ15 ide1 */
-	/* >IRQ15 */
 };
 
+struct irq_penalty_info {
+	int irq;
+	int penalty;
+	struct list_head node;
+};
+
+static LIST_HEAD(acpi_irq_penalty_list);
+
+static int acpi_irq_get_penalty(int irq)
+{
+	struct irq_penalty_info *irq_info;
+
+	if (irq < ACPI_MAX_ISA_IRQ)
+		return acpi_irq_isa_penalty[irq];
+
+	list_for_each_entry(irq_info, &acpi_irq_penalty_list, node) {
+		if (irq_info->irq == irq)
+			return irq_info->penalty;
+	}
+
+	return 0;
+}
+
+static int acpi_irq_set_penalty(int irq, int new_penalty)
+{
+	struct irq_penalty_info *irq_info;
+
+	/* see if this is a ISA IRQ */
+	if (irq < ACPI_MAX_ISA_IRQ) {
+		acpi_irq_isa_penalty[irq] = new_penalty;
+		return 0;
+	}
+
+	/* next, try to locate from the dynamic list */
+	list_for_each_entry(irq_info, &acpi_irq_penalty_list, node) {
+		if (irq_info->irq == irq) {
+			irq_info->penalty  = new_penalty;
+			return 0;
+		}
+	}
+
+	/* nope, let's allocate a slot for this IRQ */
+	irq_info = kzalloc(sizeof(*irq_info), GFP_KERNEL);
+	if (!irq_info)
+		return -ENOMEM;
+
+	irq_info->irq = irq;
+	irq_info->penalty = new_penalty;
+	list_add_tail(&irq_info->node, &acpi_irq_penalty_list);
+
+	return 0;
+}
+
+static void acpi_irq_add_penalty(int irq, int penalty)
+{
+	int curpen = acpi_irq_get_penalty(irq);
+
+	acpi_irq_set_penalty(irq, curpen + penalty);
+}
+
 int __init acpi_irq_penalty_init(void)
 {
 	struct acpi_pci_link *link;
@@ -487,15 +546,16 @@ int __init acpi_irq_penalty_init(void)
 			    link->irq.possible_count;
 
 			for (i = 0; i < link->irq.possible_count; i++) {
-				if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ)
-					acpi_irq_penalty[link->irq.
-							 possible[i]] +=
-					    penalty;
+				if (link->irq.possible[i] < ACPI_MAX_ISA_IRQ) {
+					int irqpos = link->irq.possible[i];
+
+					acpi_irq_add_penalty(irqpos, penalty);
+				}
 			}
 
 		} else if (link->irq.active) {
-			acpi_irq_penalty[link->irq.active] +=
-			    PIRQ_PENALTY_PCI_POSSIBLE;
+			acpi_irq_add_penalty(link->irq.active,
+					     PIRQ_PENALTY_PCI_POSSIBLE);
 		}
 	}
 
@@ -547,12 +607,12 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 		 * the use of IRQs 9, 10, 11, and >15.
 		 */
 		for (i = (link->irq.possible_count - 1); i >= 0; i--) {
-			if (acpi_irq_penalty[irq] >
-			    acpi_irq_penalty[link->irq.possible[i]])
+			if (acpi_irq_get_penalty(irq) >
+			    acpi_irq_get_penalty(link->irq.possible[i]))
 				irq = link->irq.possible[i];
 		}
 	}
-	if (acpi_irq_penalty[irq] >= PIRQ_PENALTY_ISA_ALWAYS) {
+	if (acpi_irq_get_penalty(irq) >= PIRQ_PENALTY_ISA_ALWAYS) {
 		printk(KERN_ERR PREFIX "No IRQ available for %s [%s]. "
 			    "Try pci=noacpi or acpi=off\n",
 			    acpi_device_name(link->device),
@@ -568,7 +628,8 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 			    acpi_device_bid(link->device));
 		return -ENODEV;
 	} else {
-		acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING;
+		acpi_irq_add_penalty(link->irq.active, PIRQ_PENALTY_PCI_USING);
+
 		printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n",
 		       acpi_device_name(link->device),
 		       acpi_device_bid(link->device), link->irq.active);
@@ -778,7 +839,7 @@ static void acpi_pci_link_remove(struct acpi_device *device)
 }
 
 /*
- * modify acpi_irq_penalty[] from cmdline
+ * modify penalty from cmdline
  */
 static int __init acpi_irq_penalty_update(char *str, int used)
 {
@@ -796,13 +857,10 @@ static int __init acpi_irq_penalty_update(char *str, int used)
 		if (irq < 0)
 			continue;
 
-		if (irq >= ARRAY_SIZE(acpi_irq_penalty))
-			continue;
-
 		if (used)
-			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
+			acpi_irq_add_penalty(irq, PIRQ_PENALTY_ISA_USED);
 		else
-			acpi_irq_penalty[irq] = PIRQ_PENALTY_PCI_AVAILABLE;
+			acpi_irq_set_penalty(irq, PIRQ_PENALTY_PCI_AVAILABLE);
 
 		if (retval != 2)	/* no next number */
 			break;
@@ -819,18 +877,15 @@ static int __init acpi_irq_penalty_update(char *str, int used)
  */
 void acpi_penalize_isa_irq(int irq, int active)
 {
-	if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
-		if (active)
-			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
-		else
-			acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
-	}
+	if (irq >= 0)
+		acpi_irq_add_penalty(irq, active ?
+			PIRQ_PENALTY_ISA_USED : PIRQ_PENALTY_PCI_USING);
 }
 
 bool acpi_isa_irq_available(int irq)
 {
-	return irq >= 0 && (irq >= ARRAY_SIZE(acpi_irq_penalty) ||
-			    acpi_irq_penalty[irq] < PIRQ_PENALTY_ISA_ALWAYS);
+	return irq >= 0 &&
+		(acpi_irq_get_penalty(irq) < PIRQ_PENALTY_ISA_ALWAYS);
 }
 
 /*
@@ -840,13 +895,18 @@ bool acpi_isa_irq_available(int irq)
  */
 void acpi_penalize_sci_irq(int irq, int trigger, int polarity)
 {
-	if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
-		if (trigger != ACPI_MADT_TRIGGER_LEVEL ||
-		    polarity != ACPI_MADT_POLARITY_ACTIVE_LOW)
-			acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_ALWAYS;
-		else
-			acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
-	}
+	int penalty;
+
+	if (irq < 0)
+		return;
+
+	if (trigger != ACPI_MADT_TRIGGER_LEVEL ||
+	    polarity != ACPI_MADT_POLARITY_ACTIVE_LOW)
+		penalty = PIRQ_PENALTY_ISA_ALWAYS;
+	else
+		penalty = PIRQ_PENALTY_PCI_USING;
+
+	acpi_irq_add_penalty(irq, penalty);
 }
 
 /*
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 88f4306744c0..2aee41655ce9 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -346,7 +346,7 @@ void acpi_free_properties(struct acpi_device *adev)
  *
  * Return: %0 if property with @name has been found (success),
  *         %-EINVAL if the arguments are invalid,
- *         %-ENODATA if the property doesn't exist,
+ *         %-EINVAL if the property doesn't exist,
  *         %-EPROTO if the property value type doesn't match @type.
  */
 static int acpi_data_get_property(struct acpi_device_data *data,
@@ -360,7 +360,7 @@ static int acpi_data_get_property(struct acpi_device_data *data,
 		return -EINVAL;
 
 	if (!data->pointer || !data->properties)
-		return -ENODATA;
+		return -EINVAL;
 
 	properties = data->properties;
 	for (i = 0; i < properties->package.count; i++) {
@@ -375,13 +375,13 @@ static int acpi_data_get_property(struct acpi_device_data *data,
 		if (!strcmp(name, propname->string.pointer)) {
 			if (type != ACPI_TYPE_ANY && propvalue->type != type)
 				return -EPROTO;
-			else if (obj)
+			if (obj)
 				*obj = propvalue;
 
 			return 0;
 		}
 	}
-	return -ENODATA;
+	return -EINVAL;
 }
 
 /**
@@ -439,7 +439,7 @@ int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
  *
  * Return: %0 if array property (package) with @name has been found (success),
  *         %-EINVAL if the arguments are invalid,
- *         %-ENODATA if the property doesn't exist,
+ *         %-EINVAL if the property doesn't exist,
  *         %-EPROTO if the property is not a package or the type of its elements
  *           doesn't match @type.
  */
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index cdc5c2599beb..d02fd53042a5 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -23,6 +23,7 @@
 #include <linux/export.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
+#include <linux/irq.h>
 
 #ifdef CONFIG_X86
 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
@@ -336,6 +337,31 @@ unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
 }
 EXPORT_SYMBOL_GPL(acpi_dev_irq_flags);
 
+/**
+ * acpi_dev_get_irq_type - Determine irq type.
+ * @triggering: Triggering type as provided by ACPI.
+ * @polarity: Interrupt polarity as provided by ACPI.
+ */
+unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
+{
+	switch (polarity) {
+	case ACPI_ACTIVE_LOW:
+		return triggering == ACPI_EDGE_SENSITIVE ?
+		       IRQ_TYPE_EDGE_FALLING :
+		       IRQ_TYPE_LEVEL_LOW;
+	case ACPI_ACTIVE_HIGH:
+		return triggering == ACPI_EDGE_SENSITIVE ?
+		       IRQ_TYPE_EDGE_RISING :
+		       IRQ_TYPE_LEVEL_HIGH;
+	case ACPI_ACTIVE_BOTH:
+		if (triggering == ACPI_EDGE_SENSITIVE)
+			return IRQ_TYPE_EDGE_BOTH;
+	default:
+		return IRQ_TYPE_NONE;
+	}
+}
+EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type);
+
 static void acpi_dev_irqresource_disabled(struct resource *res, u32 gsi)
 {
 	res->start = gsi;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index cb3dedb1beae..ad0b13ad4bbb 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -417,11 +417,11 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery)
 		if ((value & 0xf000) != sel) {
 			value &= 0x0fff;
 			value |= sel;
-		ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD,
+			ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD,
 					 ACPI_SBS_MANAGER,
 					 0x01, (u8 *)&value, 2);
-		if (ret)
-			goto end;
+			if (ret)
+				goto end;
 		}
 	}
 	ret = acpi_smbus_write(sbs->hc, SMBUS_WRITE_WORD, ACPI_SBS_BATTERY,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 78d5f02a073b..407a3760e8de 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -39,7 +39,7 @@ static const char *dummy_hid = "device";
 
 static LIST_HEAD(acpi_dep_list);
 static DEFINE_MUTEX(acpi_dep_list_lock);
-static LIST_HEAD(acpi_bus_id_list);
+LIST_HEAD(acpi_bus_id_list);
 static DEFINE_MUTEX(acpi_scan_lock);
 static LIST_HEAD(acpi_scan_handlers_list);
 DEFINE_MUTEX(acpi_device_lock);
@@ -52,12 +52,6 @@ struct acpi_dep_data {
 	acpi_handle slave;
 };
 
-struct acpi_device_bus_id{
-	char bus_id[15];
-	unsigned int instance_no;
-	struct list_head node;
-};
-
 void acpi_scan_lock_acquire(void)
 {
 	mutex_lock(&acpi_scan_lock);
@@ -471,10 +465,24 @@ static void acpi_device_release(struct device *dev)
 
 static void acpi_device_del(struct acpi_device *device)
 {
+	struct acpi_device_bus_id *acpi_device_bus_id;
+
 	mutex_lock(&acpi_device_lock);
 	if (device->parent)
 		list_del(&device->node);
 
+	list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node)
+		if (!strcmp(acpi_device_bus_id->bus_id,
+			    acpi_device_hid(device))) {
+			if (acpi_device_bus_id->instance_no > 0)
+				acpi_device_bus_id->instance_no--;
+			else {
+				list_del(&acpi_device_bus_id->node);
+				kfree(acpi_device_bus_id);
+			}
+			break;
+		}
+
 	list_del(&device->wakeup_list);
 	mutex_unlock(&acpi_device_lock);
 
@@ -1461,7 +1469,7 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
 		*type = ACPI_BUS_TYPE_DEVICE;
 		status = acpi_bus_get_status_handle(handle, sta);
 		if (ACPI_FAILURE(status))
-			return -ENODEV;
+			*sta = 0;
 		break;
 	case ACPI_TYPE_PROCESSOR:
 		*type = ACPI_BUS_TYPE_PROCESSOR;
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 0d94621dc856..9cb975200cac 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -61,7 +61,7 @@ static int acpi_sleep_prepare(u32 acpi_state)
 	if (acpi_state == ACPI_STATE_S3) {
 		if (!acpi_wakeup_address)
 			return -EFAULT;
-		acpi_set_firmware_waking_vector(acpi_wakeup_address);
+		acpi_set_waking_vector(acpi_wakeup_address);
 
 	}
 	ACPI_FLUSH_CPU_CACHE();
@@ -410,7 +410,7 @@ static void acpi_pm_finish(void)
 	acpi_leave_sleep_state(acpi_state);
 
 	/* reset firmware waking vector */
-	acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+	acpi_set_waking_vector(0);
 
 	acpi_target_sleep_state = ACPI_STATE_S0;
 
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h
index c797ffa568d5..a9cc34e663f9 100644
--- a/drivers/acpi/sleep.h
+++ b/drivers/acpi/sleep.h
@@ -6,3 +6,9 @@ extern struct list_head acpi_wakeup_device_list;
 extern struct mutex acpi_device_lock;
 
 extern void acpi_resume_power_resources(void);
+
+static inline acpi_status acpi_set_waking_vector(u32 wakeup_address)
+{
+	return acpi_set_firmware_waking_vector(
+				(acpi_physical_address)wakeup_address, 0);
+}
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 475c9079bf85..f2f9873bb5c3 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -29,6 +29,7 @@
 #include <linux/dynamic_debug.h>
 
 #include "internal.h"
+#include "sleep.h"
 
 #define _COMPONENT		ACPI_BUS_COMPONENT
 ACPI_MODULE_NAME("utils");
@@ -709,6 +710,36 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs)
 }
 EXPORT_SYMBOL(acpi_check_dsm);
 
+/**
+ * acpi_dev_present - Detect presence of a given ACPI device in the system.
+ * @hid: Hardware ID of the device.
+ *
+ * Return %true if the device was present at the moment of invocation.
+ * Note that if the device is pluggable, it may since have disappeared.
+ *
+ * For this function to work, acpi_bus_scan() must have been executed
+ * which happens in the subsys_initcall() subsection. Hence, do not
+ * call from a subsys_initcall() or earlier (use acpi_get_devices()
+ * instead). Calling from module_init() is fine (which is synonymous
+ * with device_initcall()).
+ */
+bool acpi_dev_present(const char *hid)
+{
+	struct acpi_device_bus_id *acpi_device_bus_id;
+	bool found = false;
+
+	mutex_lock(&acpi_device_lock);
+	list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node)
+		if (!strcmp(acpi_device_bus_id->bus_id, hid)) {
+			found = true;
+			break;
+		}
+	mutex_unlock(&acpi_device_lock);
+
+	return found;
+}
+EXPORT_SYMBOL(acpi_dev_present);
+
 /*
  * acpi_backlight= handling, this is done here rather then in video_detect.c
  * because __setup cannot be used in modules.
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index daaf1c4e1e0f..90e2d54be526 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -250,6 +250,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"),
 		},
 	},
+	{
+	 /* https://bugzilla.kernel.org/show_bug.cgi?id=108971 */
+	 .callback = video_detect_force_video,
+	 .ident = "SAMSUNG 530U4E/540U4E",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"),
+		},
+	},
 
 	/* Non win8 machines which need native backlight nevertheless */
 	{
@@ -279,6 +288,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
 		},
 	},
+	{
+	 .callback = video_detect_force_native,
+	 .ident = "Dell Vostro V131",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
+		},
+	},
 	{ },
 };
 
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 1782f3aa386e..e05db388bd1c 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -131,6 +131,8 @@ extern void device_remove_groups(struct device *dev,
 extern char *make_class_name(const char *name, struct kobject *kobj);
 
 extern int devres_release_all(struct device *dev);
+extern void device_block_probing(void);
+extern void device_unblock_probing(void);
 
 /* /sys/devices directory */
 extern struct kset *devices_kset;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index b7d56c5ea3c6..0a8bdade53f2 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2261,7 +2261,10 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
 		if (fwnode_is_primary(fn))
 			fn = fn->secondary;
 
-		fwnode->secondary = fn;
+		if (fn) {
+			WARN_ON(fwnode->secondary);
+			fwnode->secondary = fn;
+		}
 		dev->fwnode = fwnode;
 	} else {
 		dev->fwnode = fwnode_is_primary(dev->fwnode) ?
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index a641cf3ccad6..7399be790b5d 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -55,6 +55,13 @@ static struct workqueue_struct *deferred_wq;
 static atomic_t deferred_trigger_count = ATOMIC_INIT(0);
 
 /*
+ * In some cases, like suspend to RAM or hibernation, It might be reasonable
+ * to prohibit probing of devices as it could be unsafe.
+ * Once defer_all_probes is true all drivers probes will be forcibly deferred.
+ */
+static bool defer_all_probes;
+
+/*
  * deferred_probe_work_func() - Retry probing devices in the active list.
  */
 static void deferred_probe_work_func(struct work_struct *work)
@@ -172,6 +179,30 @@ static void driver_deferred_probe_trigger(void)
 }
 
 /**
+ * device_block_probing() - Block/defere device's probes
+ *
+ *	It will disable probing of devices and defer their probes instead.
+ */
+void device_block_probing(void)
+{
+	defer_all_probes = true;
+	/* sync with probes to avoid races. */
+	wait_for_device_probe();
+}
+
+/**
+ * device_unblock_probing() - Unblock/enable device's probes
+ *
+ *	It will restore normal behavior and trigger re-probing of deferred
+ * devices.
+ */
+void device_unblock_probing(void)
+{
+	defer_all_probes = false;
+	driver_deferred_probe_trigger();
+}
+
+/**
  * deferred_probe_initcall() - Enable probing of deferred devices
  *
  * We don't want to get in the way when the bulk of drivers are getting probed.
@@ -268,6 +299,9 @@ int device_bind_driver(struct device *dev)
 	ret = driver_sysfs_add(dev);
 	if (!ret)
 		driver_bound(dev);
+	else if (dev->bus)
+		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
+					     BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(device_bind_driver);
@@ -277,9 +311,20 @@ static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue);
 
 static int really_probe(struct device *dev, struct device_driver *drv)
 {
-	int ret = 0;
+	int ret = -EPROBE_DEFER;
 	int local_trigger_count = atomic_read(&deferred_trigger_count);
 
+	if (defer_all_probes) {
+		/*
+		 * Value of defer_all_probes can be set only by
+		 * device_defer_all_probes_enable() which, in turn, will call
+		 * wait_for_device_probe() right after that to avoid any races.
+		 */
+		dev_dbg(dev, "Driver %s force probe deferral\n", drv->name);
+		driver_deferred_probe_add(dev);
+		return ret;
+	}
+
 	atomic_inc(&probe_count);
 	pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
 		 drv->bus->name, __func__, drv->name, dev_name(dev));
@@ -290,7 +335,7 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 	/* If using pinctrl, bind pins now before probing */
 	ret = pinctrl_bind_pins(dev);
 	if (ret)
-		goto probe_failed;
+		goto pinctrl_bind_failed;
 
 	if (driver_sysfs_add(dev)) {
 		printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
@@ -334,12 +379,17 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 	goto done;
 
 probe_failed:
+	if (dev->bus)
+		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
+					     BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
+pinctrl_bind_failed:
 	devres_release_all(dev);
 	driver_sysfs_remove(dev);
 	dev->driver = NULL;
 	dev_set_drvdata(dev, NULL);
 	if (dev->pm_domain && dev->pm_domain->dismiss)
 		dev->pm_domain->dismiss(dev);
+	pm_runtime_reinit(dev);
 
 	switch (ret) {
 	case -EPROBE_DEFER:
@@ -393,6 +443,10 @@ int driver_probe_done(void)
  */
 void wait_for_device_probe(void)
 {
+	/* wait for the deferred probe workqueue to finish */
+	if (driver_deferred_probe_enable)
+		flush_workqueue(deferred_wq);
+
 	/* wait for the known devices to complete their probing */
 	wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
 	async_synchronize_full();
@@ -695,13 +749,13 @@ static void __device_release_driver(struct device *dev)
 		dev_set_drvdata(dev, NULL);
 		if (dev->pm_domain && dev->pm_domain->dismiss)
 			dev->pm_domain->dismiss(dev);
+		pm_runtime_reinit(dev);
 
 		klist_remove(&dev->p->knode_driver);
 		if (dev->bus)
 			blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
 						     BUS_NOTIFY_UNBOUND_DRIVER,
 						     dev);
-
 	}
 }
 
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 25425d3f2575..619fe584a44c 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -450,8 +450,7 @@ memory_probe_store(struct device *dev, struct device_attribute *attr,
 		   const char *buf, size_t count)
 {
 	u64 phys_addr;
-	int nid;
-	int i, ret;
+	int nid, ret;
 	unsigned long pages_per_block = PAGES_PER_SECTION * sections_per_block;
 
 	ret = kstrtoull(buf, 0, &phys_addr);
@@ -461,15 +460,12 @@ memory_probe_store(struct device *dev, struct device_attribute *attr,
 	if (phys_addr & ((pages_per_block << PAGE_SHIFT) - 1))
 		return -EINVAL;
 
-	for (i = 0; i < sections_per_block; i++) {
-		nid = memory_add_physaddr_to_nid(phys_addr);
-		ret = add_memory(nid, phys_addr,
-				 PAGES_PER_SECTION << PAGE_SHIFT);
-		if (ret)
-			goto out;
+	nid = memory_add_physaddr_to_nid(phys_addr);
+	ret = add_memory(nid, phys_addr,
+			 MIN_MEMORY_BLOCK_SIZE * sections_per_block);
 
-		phys_addr += MIN_MEMORY_BLOCK_SIZE;
-	}
+	if (ret)
+		goto out;
 
 	ret = count;
 out:
@@ -618,7 +614,6 @@ static int init_memory_block(struct memory_block **memory,
 			base_memory_block_id(scn_nr) * sections_per_block;
 	mem->end_section_nr = mem->start_section_nr + sections_per_block - 1;
 	mem->state = state;
-	mem->section_count++;
 	start_pfn = section_nr_to_pfn(mem->start_section_nr);
 	mem->phys_device = arch_get_memory_phys_device(start_pfn);
 
@@ -672,6 +667,7 @@ int register_new_memory(int nid, struct mem_section *section)
 		ret = init_memory_block(&mem, section, MEM_OFFLINE);
 		if (ret)
 			goto out;
+		mem->section_count++;
 	}
 
 	if (mem->section_count == sections_per_block)
@@ -692,7 +688,7 @@ unregister_memory(struct memory_block *memory)
 	device_unregister(&memory->dev);
 }
 
-static int remove_memory_block(unsigned long node_id,
+static int remove_memory_section(unsigned long node_id,
 			       struct mem_section *section, int phys_device)
 {
 	struct memory_block *mem;
@@ -716,7 +712,7 @@ int unregister_memory_section(struct mem_section *section)
 	if (!present_section(section))
 		return -EINVAL;
 
-	return remove_memory_block(0, section, 0);
+	return remove_memory_section(0, section, 0);
 }
 #endif /* CONFIG_MEMORY_HOTREMOVE */
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 73e399466c6e..8dcbb266643b 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -26,6 +26,7 @@
 #include <linux/acpi.h>
 #include <linux/clk/clk-conf.h>
 #include <linux/limits.h>
+#include <linux/property.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -319,6 +320,22 @@ int platform_device_add_data(struct platform_device *pdev, const void *data,
 EXPORT_SYMBOL_GPL(platform_device_add_data);
 
 /**
+ * platform_device_add_properties - add built-in properties to a platform device
+ * @pdev: platform device to add properties to
+ * @pset: properties to add
+ *
+ * The function will take deep copy of the properties in @pset and attach
+ * the copy to the platform device. The memory associated with properties
+ * will be freed when the platform device is released.
+ */
+int platform_device_add_properties(struct platform_device *pdev,
+				   const struct property_set *pset)
+{
+	return device_add_property_set(&pdev->dev, pset);
+}
+EXPORT_SYMBOL_GPL(platform_device_add_properties);
+
+/**
  * platform_device_add - add a platform device to device hierarchy
  * @pdev: platform device we're adding
  *
@@ -429,6 +446,8 @@ void platform_device_del(struct platform_device *pdev)
 			if (r->parent)
 				release_resource(r);
 		}
+
+		device_remove_property_set(&pdev->dev);
 	}
 }
 EXPORT_SYMBOL_GPL(platform_device_del);
@@ -507,6 +526,12 @@ struct platform_device *platform_device_register_full(
 	if (ret)
 		goto err;
 
+	if (pdevinfo->pset) {
+		ret = platform_device_add_properties(pdev, pdevinfo->pset);
+		if (ret)
+			goto err;
+	}
+
 	ret = platform_device_add(pdev);
 	if (ret) {
 err:
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 60ee5591ee8f..c39b8617280f 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -473,6 +473,7 @@ static int pm_clk_notify(struct notifier_block *nb,
 			enable_clock(dev, NULL);
 		}
 		break;
+	case BUS_NOTIFY_DRIVER_NOT_BOUND:
 	case BUS_NOTIFY_UNBOUND_DRIVER:
 		if (clknb->con_ids[0]) {
 			for (con_id = clknb->con_ids; *con_id; con_id++)
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index f32b802b98f4..f48e33385b3e 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -112,7 +112,7 @@ EXPORT_SYMBOL_GPL(dev_pm_domain_attach);
 
 /**
  * dev_pm_domain_detach - Detach a device from its PM domain.
- * @dev: Device to attach.
+ * @dev: Device to detach.
  * @power_off: Used to indicate whether we should power off the device.
  *
  * This functions will reverse the actions from dev_pm_domain_attach() and thus
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 65f50eccd49b..b80379012840 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1263,6 +1263,7 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(__pm_genpd_add_device);
 
 /**
  * pm_genpd_remove_device - Remove a device from an I/O PM domain.
@@ -1313,6 +1314,7 @@ int pm_genpd_remove_device(struct generic_pm_domain *genpd,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(pm_genpd_remove_device);
 
 /**
  * pm_genpd_add_subdomain - Add a subdomain to an I/O PM domain.
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 1710c26ba097..9d626ac08d9c 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -963,6 +963,9 @@ void dpm_complete(pm_message_t state)
 	}
 	list_splice(&list, &dpm_list);
 	mutex_unlock(&dpm_list_mtx);
+
+	/* Allow device probing and trigger re-probing of deferred devices */
+	device_unblock_probing();
 	trace_suspend_resume(TPS("dpm_complete"), state.event, false);
 }
 
@@ -1624,6 +1627,20 @@ int dpm_prepare(pm_message_t state)
 	trace_suspend_resume(TPS("dpm_prepare"), state.event, true);
 	might_sleep();
 
+	/*
+	 * Give a chance for the known devices to complete their probes, before
+	 * disable probing of devices. This sync point is important at least
+	 * at boot time + hibernation restore.
+	 */
+	wait_for_device_probe();
+	/*
+	 * It is unsafe if probing of devices will happen during suspend or
+	 * hibernation and system behavior will be unpredictable in this case.
+	 * So, let's prohibit device's probing here and defer their probes
+	 * instead. The normal behavior will be restored in dpm_complete().
+	 */
+	device_block_probing();
+
 	mutex_lock(&dpm_list_mtx);
 	while (!list_empty(&dpm_list)) {
 		struct device *dev = to_device(dpm_list.next);
diff --git a/drivers/base/power/opp/Makefile b/drivers/base/power/opp/Makefile
index 33c1e18c41a4..19837ef04d8e 100644
--- a/drivers/base/power/opp/Makefile
+++ b/drivers/base/power/opp/Makefile
@@ -1,2 +1,3 @@
 ccflags-$(CONFIG_DEBUG_DRIVER)	:= -DDEBUG
 obj-y				+= core.o cpu.o
+obj-$(CONFIG_DEBUG_FS)		+= debugfs.o
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index b8e76f75073b..cf351d3dab1c 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -463,6 +463,7 @@ static void _kfree_list_dev_rcu(struct rcu_head *head)
 static void _remove_list_dev(struct device_list_opp *list_dev,
 			     struct device_opp *dev_opp)
 {
+	opp_debug_unregister(list_dev, dev_opp);
 	list_del(&list_dev->node);
 	call_srcu(&dev_opp->srcu_head.srcu, &list_dev->rcu_head,
 		  _kfree_list_dev_rcu);
@@ -472,6 +473,7 @@ struct device_list_opp *_add_list_dev(const struct device *dev,
 				      struct device_opp *dev_opp)
 {
 	struct device_list_opp *list_dev;
+	int ret;
 
 	list_dev = kzalloc(sizeof(*list_dev), GFP_KERNEL);
 	if (!list_dev)
@@ -481,6 +483,12 @@ struct device_list_opp *_add_list_dev(const struct device *dev,
 	list_dev->dev = dev;
 	list_add_rcu(&list_dev->node, &dev_opp->dev_list);
 
+	/* Create debugfs entries for the dev_opp */
+	ret = opp_debug_register(list_dev, dev_opp);
+	if (ret)
+		dev_err(dev, "%s: Failed to register opp debugfs (%d)\n",
+			__func__, ret);
+
 	return list_dev;
 }
 
@@ -551,6 +559,12 @@ static void _remove_device_opp(struct device_opp *dev_opp)
 	if (!list_empty(&dev_opp->opp_list))
 		return;
 
+	if (dev_opp->supported_hw)
+		return;
+
+	if (dev_opp->prop_name)
+		return;
+
 	list_dev = list_first_entry(&dev_opp->dev_list, struct device_list_opp,
 				    node);
 
@@ -596,6 +610,7 @@ static void _opp_remove(struct device_opp *dev_opp,
 	 */
 	if (notify)
 		srcu_notifier_call_chain(&dev_opp->srcu_head, OPP_EVENT_REMOVE, opp);
+	opp_debug_remove_one(opp);
 	list_del_rcu(&opp->node);
 	call_srcu(&dev_opp->srcu_head.srcu, &opp->rcu_head, _kfree_opp_rcu);
 
@@ -673,6 +688,7 @@ static int _opp_add(struct device *dev, struct dev_pm_opp *new_opp,
 {
 	struct dev_pm_opp *opp;
 	struct list_head *head = &dev_opp->opp_list;
+	int ret;
 
 	/*
 	 * Insert new OPP in order of increasing frequency and discard if
@@ -703,6 +719,11 @@ static int _opp_add(struct device *dev, struct dev_pm_opp *new_opp,
 	new_opp->dev_opp = dev_opp;
 	list_add_rcu(&new_opp->node, head);
 
+	ret = opp_debug_create_one(new_opp, dev_opp);
+	if (ret)
+		dev_err(dev, "%s: Failed to register opp to debugfs (%d)\n",
+			__func__, ret);
+
 	return 0;
 }
 
@@ -776,35 +797,49 @@ unlock:
 }
 
 /* TODO: Support multiple regulators */
-static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev)
+static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
+			      struct device_opp *dev_opp)
 {
 	u32 microvolt[3] = {0};
 	u32 val;
 	int count, ret;
+	struct property *prop = NULL;
+	char name[NAME_MAX];
+
+	/* Search for "opp-microvolt-<name>" */
+	if (dev_opp->prop_name) {
+		snprintf(name, sizeof(name), "opp-microvolt-%s",
+			 dev_opp->prop_name);
+		prop = of_find_property(opp->np, name, NULL);
+	}
 
-	/* Missing property isn't a problem, but an invalid entry is */
-	if (!of_find_property(opp->np, "opp-microvolt", NULL))
-		return 0;
+	if (!prop) {
+		/* Search for "opp-microvolt" */
+		sprintf(name, "opp-microvolt");
+		prop = of_find_property(opp->np, name, NULL);
 
-	count = of_property_count_u32_elems(opp->np, "opp-microvolt");
+		/* Missing property isn't a problem, but an invalid entry is */
+		if (!prop)
+			return 0;
+	}
+
+	count = of_property_count_u32_elems(opp->np, name);
 	if (count < 0) {
-		dev_err(dev, "%s: Invalid opp-microvolt property (%d)\n",
-			__func__, count);
+		dev_err(dev, "%s: Invalid %s property (%d)\n",
+			__func__, name, count);
 		return count;
 	}
 
 	/* There can be one or three elements here */
 	if (count != 1 && count != 3) {
-		dev_err(dev, "%s: Invalid number of elements in opp-microvolt property (%d)\n",
-			__func__, count);
+		dev_err(dev, "%s: Invalid number of elements in %s property (%d)\n",
+			__func__, name, count);
 		return -EINVAL;
 	}
 
-	ret = of_property_read_u32_array(opp->np, "opp-microvolt", microvolt,
-					 count);
+	ret = of_property_read_u32_array(opp->np, name, microvolt, count);
 	if (ret) {
-		dev_err(dev, "%s: error parsing opp-microvolt: %d\n", __func__,
-			ret);
+		dev_err(dev, "%s: error parsing %s: %d\n", __func__, name, ret);
 		return -EINVAL;
 	}
 
@@ -812,13 +847,272 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev)
 	opp->u_volt_min = microvolt[1];
 	opp->u_volt_max = microvolt[2];
 
-	if (!of_property_read_u32(opp->np, "opp-microamp", &val))
+	/* Search for "opp-microamp-<name>" */
+	prop = NULL;
+	if (dev_opp->prop_name) {
+		snprintf(name, sizeof(name), "opp-microamp-%s",
+			 dev_opp->prop_name);
+		prop = of_find_property(opp->np, name, NULL);
+	}
+
+	if (!prop) {
+		/* Search for "opp-microamp" */
+		sprintf(name, "opp-microamp");
+		prop = of_find_property(opp->np, name, NULL);
+	}
+
+	if (prop && !of_property_read_u32(opp->np, name, &val))
 		opp->u_amp = val;
 
 	return 0;
 }
 
 /**
+ * dev_pm_opp_set_supported_hw() - Set supported platforms
+ * @dev: Device for which supported-hw has to be set.
+ * @versions: Array of hierarchy of versions to match.
+ * @count: Number of elements in the array.
+ *
+ * This is required only for the V2 bindings, and it enables a platform to
+ * specify the hierarchy of versions it supports. OPP layer will then enable
+ * OPPs, which are available for those versions, based on its 'opp-supported-hw'
+ * property.
+ *
+ * Locking: The internal device_opp and opp structures are RCU protected.
+ * Hence this function internally uses RCU updater strategy with mutex locks
+ * to keep the integrity of the internal data structures. Callers should ensure
+ * that this function is *NOT* called under RCU protection or in contexts where
+ * mutex cannot be locked.
+ */
+int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
+				unsigned int count)
+{
+	struct device_opp *dev_opp;
+	int ret = 0;
+
+	/* Hold our list modification lock here */
+	mutex_lock(&dev_opp_list_lock);
+
+	dev_opp = _add_device_opp(dev);
+	if (!dev_opp) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	/* Make sure there are no concurrent readers while updating dev_opp */
+	WARN_ON(!list_empty(&dev_opp->opp_list));
+
+	/* Do we already have a version hierarchy associated with dev_opp? */
+	if (dev_opp->supported_hw) {
+		dev_err(dev, "%s: Already have supported hardware list\n",
+			__func__);
+		ret = -EBUSY;
+		goto err;
+	}
+
+	dev_opp->supported_hw = kmemdup(versions, count * sizeof(*versions),
+					GFP_KERNEL);
+	if (!dev_opp->supported_hw) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	dev_opp->supported_hw_count = count;
+	mutex_unlock(&dev_opp_list_lock);
+	return 0;
+
+err:
+	_remove_device_opp(dev_opp);
+unlock:
+	mutex_unlock(&dev_opp_list_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_supported_hw);
+
+/**
+ * dev_pm_opp_put_supported_hw() - Releases resources blocked for supported hw
+ * @dev: Device for which supported-hw has to be set.
+ *
+ * This is required only for the V2 bindings, and is called for a matching
+ * dev_pm_opp_set_supported_hw(). Until this is called, the device_opp structure
+ * will not be freed.
+ *
+ * Locking: The internal device_opp and opp structures are RCU protected.
+ * Hence this function internally uses RCU updater strategy with mutex locks
+ * to keep the integrity of the internal data structures. Callers should ensure
+ * that this function is *NOT* called under RCU protection or in contexts where
+ * mutex cannot be locked.
+ */
+void dev_pm_opp_put_supported_hw(struct device *dev)
+{
+	struct device_opp *dev_opp;
+
+	/* Hold our list modification lock here */
+	mutex_lock(&dev_opp_list_lock);
+
+	/* Check for existing list for 'dev' first */
+	dev_opp = _find_device_opp(dev);
+	if (IS_ERR(dev_opp)) {
+		dev_err(dev, "Failed to find dev_opp: %ld\n", PTR_ERR(dev_opp));
+		goto unlock;
+	}
+
+	/* Make sure there are no concurrent readers while updating dev_opp */
+	WARN_ON(!list_empty(&dev_opp->opp_list));
+
+	if (!dev_opp->supported_hw) {
+		dev_err(dev, "%s: Doesn't have supported hardware list\n",
+			__func__);
+		goto unlock;
+	}
+
+	kfree(dev_opp->supported_hw);
+	dev_opp->supported_hw = NULL;
+	dev_opp->supported_hw_count = 0;
+
+	/* Try freeing device_opp if this was the last blocking resource */
+	_remove_device_opp(dev_opp);
+
+unlock:
+	mutex_unlock(&dev_opp_list_lock);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_put_supported_hw);
+
+/**
+ * dev_pm_opp_set_prop_name() - Set prop-extn name
+ * @dev: Device for which the regulator has to be set.
+ * @name: name to postfix to properties.
+ *
+ * This is required only for the V2 bindings, and it enables a platform to
+ * specify the extn to be used for certain property names. The properties to
+ * which the extension will apply are opp-microvolt and opp-microamp. OPP core
+ * should postfix the property name with -<name> while looking for them.
+ *
+ * Locking: The internal device_opp and opp structures are RCU protected.
+ * Hence this function internally uses RCU updater strategy with mutex locks
+ * to keep the integrity of the internal data structures. Callers should ensure
+ * that this function is *NOT* called under RCU protection or in contexts where
+ * mutex cannot be locked.
+ */
+int dev_pm_opp_set_prop_name(struct device *dev, const char *name)
+{
+	struct device_opp *dev_opp;
+	int ret = 0;
+
+	/* Hold our list modification lock here */
+	mutex_lock(&dev_opp_list_lock);
+
+	dev_opp = _add_device_opp(dev);
+	if (!dev_opp) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	/* Make sure there are no concurrent readers while updating dev_opp */
+	WARN_ON(!list_empty(&dev_opp->opp_list));
+
+	/* Do we already have a prop-name associated with dev_opp? */
+	if (dev_opp->prop_name) {
+		dev_err(dev, "%s: Already have prop-name %s\n", __func__,
+			dev_opp->prop_name);
+		ret = -EBUSY;
+		goto err;
+	}
+
+	dev_opp->prop_name = kstrdup(name, GFP_KERNEL);
+	if (!dev_opp->prop_name) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	mutex_unlock(&dev_opp_list_lock);
+	return 0;
+
+err:
+	_remove_device_opp(dev_opp);
+unlock:
+	mutex_unlock(&dev_opp_list_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
+
+/**
+ * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name
+ * @dev: Device for which the regulator has to be set.
+ *
+ * This is required only for the V2 bindings, and is called for a matching
+ * dev_pm_opp_set_prop_name(). Until this is called, the device_opp structure
+ * will not be freed.
+ *
+ * Locking: The internal device_opp and opp structures are RCU protected.
+ * Hence this function internally uses RCU updater strategy with mutex locks
+ * to keep the integrity of the internal data structures. Callers should ensure
+ * that this function is *NOT* called under RCU protection or in contexts where
+ * mutex cannot be locked.
+ */
+void dev_pm_opp_put_prop_name(struct device *dev)
+{
+	struct device_opp *dev_opp;
+
+	/* Hold our list modification lock here */
+	mutex_lock(&dev_opp_list_lock);
+
+	/* Check for existing list for 'dev' first */
+	dev_opp = _find_device_opp(dev);
+	if (IS_ERR(dev_opp)) {
+		dev_err(dev, "Failed to find dev_opp: %ld\n", PTR_ERR(dev_opp));
+		goto unlock;
+	}
+
+	/* Make sure there are no concurrent readers while updating dev_opp */
+	WARN_ON(!list_empty(&dev_opp->opp_list));
+
+	if (!dev_opp->prop_name) {
+		dev_err(dev, "%s: Doesn't have a prop-name\n", __func__);
+		goto unlock;
+	}
+
+	kfree(dev_opp->prop_name);
+	dev_opp->prop_name = NULL;
+
+	/* Try freeing device_opp if this was the last blocking resource */
+	_remove_device_opp(dev_opp);
+
+unlock:
+	mutex_unlock(&dev_opp_list_lock);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
+
+static bool _opp_is_supported(struct device *dev, struct device_opp *dev_opp,
+			      struct device_node *np)
+{
+	unsigned int count = dev_opp->supported_hw_count;
+	u32 version;
+	int ret;
+
+	if (!dev_opp->supported_hw)
+		return true;
+
+	while (count--) {
+		ret = of_property_read_u32_index(np, "opp-supported-hw", count,
+						 &version);
+		if (ret) {
+			dev_warn(dev, "%s: failed to read opp-supported-hw property at index %d: %d\n",
+				 __func__, count, ret);
+			return false;
+		}
+
+		/* Both of these are bitwise masks of the versions */
+		if (!(version & dev_opp->supported_hw[count]))
+			return false;
+	}
+
+	return true;
+}
+
+/**
  * _opp_add_static_v2() - Allocate static OPPs (As per 'v2' DT bindings)
  * @dev:	device for which we do this operation
  * @np:		device node
@@ -864,6 +1158,12 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np)
 		goto free_opp;
 	}
 
+	/* Check if the OPP supports hardware's hierarchy of versions or not */
+	if (!_opp_is_supported(dev, dev_opp, np)) {
+		dev_dbg(dev, "OPP not supported by hardware: %llu\n", rate);
+		goto free_opp;
+	}
+
 	/*
 	 * Rate is defined as an unsigned long in clk API, and so casting
 	 * explicitly to its type. Must be fixed once rate is 64 bit
@@ -879,7 +1179,7 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np)
 	if (!of_property_read_u32(np, "clock-latency-ns", &val))
 		new_opp->clock_latency_ns = val;
 
-	ret = opp_parse_supplies(new_opp, dev);
+	ret = opp_parse_supplies(new_opp, dev, dev_opp);
 	if (ret)
 		goto free_opp;
 
@@ -889,12 +1189,14 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np)
 
 	/* OPP to select on device suspend */
 	if (of_property_read_bool(np, "opp-suspend")) {
-		if (dev_opp->suspend_opp)
+		if (dev_opp->suspend_opp) {
 			dev_warn(dev, "%s: Multiple suspend OPPs found (%lu %lu)\n",
 				 __func__, dev_opp->suspend_opp->rate,
 				 new_opp->rate);
-		else
+		} else {
+			new_opp->suspend = true;
 			dev_opp->suspend_opp = new_opp;
+		}
 	}
 
 	if (new_opp->clock_latency_ns > dev_opp->clock_latency_ns_max)
diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c
index 7b445e88a0d5..9f0c15570f64 100644
--- a/drivers/base/power/opp/cpu.c
+++ b/drivers/base/power/opp/cpu.c
@@ -214,7 +214,6 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_of_cpumask_add_table);
 /*
  * Works only for OPP v2 bindings.
  *
- * cpumask should be already set to mask of cpu_dev->id.
  * Returns -ENOENT if operating-points-v2 bindings aren't supported.
  */
 int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
@@ -230,6 +229,8 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask
 		return -ENOENT;
 	}
 
+	cpumask_set_cpu(cpu_dev->id, cpumask);
+
 	/* OPPs are shared ? */
 	if (!of_property_read_bool(np, "opp-shared"))
 		goto put_cpu_node;
diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
new file mode 100644
index 000000000000..ddfe4773e922
--- /dev/null
+++ b/drivers/base/power/opp/debugfs.c
@@ -0,0 +1,219 @@
+/*
+ * Generic OPP debugfs interface
+ *
+ * Copyright (C) 2015-2016 Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/limits.h>
+
+#include "opp.h"
+
+static struct dentry *rootdir;
+
+static void opp_set_dev_name(const struct device *dev, char *name)
+{
+	if (dev->parent)
+		snprintf(name, NAME_MAX, "%s-%s", dev_name(dev->parent),
+			 dev_name(dev));
+	else
+		snprintf(name, NAME_MAX, "%s", dev_name(dev));
+}
+
+void opp_debug_remove_one(struct dev_pm_opp *opp)
+{
+	debugfs_remove_recursive(opp->dentry);
+}
+
+int opp_debug_create_one(struct dev_pm_opp *opp, struct device_opp *dev_opp)
+{
+	struct dentry *pdentry = dev_opp->dentry;
+	struct dentry *d;
+	char name[25];	/* 20 chars for 64 bit value + 5 (opp:\0) */
+
+	/* Rate is unique to each OPP, use it to give opp-name */
+	snprintf(name, sizeof(name), "opp:%lu", opp->rate);
+
+	/* Create per-opp directory */
+	d = debugfs_create_dir(name, pdentry);
+	if (!d)
+		return -ENOMEM;
+
+	if (!debugfs_create_bool("available", S_IRUGO, d, &opp->available))
+		return -ENOMEM;
+
+	if (!debugfs_create_bool("dynamic", S_IRUGO, d, &opp->dynamic))
+		return -ENOMEM;
+
+	if (!debugfs_create_bool("turbo", S_IRUGO, d, &opp->turbo))
+		return -ENOMEM;
+
+	if (!debugfs_create_bool("suspend", S_IRUGO, d, &opp->suspend))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("rate_hz", S_IRUGO, d, &opp->rate))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("u_volt_target", S_IRUGO, d, &opp->u_volt))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("u_volt_min", S_IRUGO, d, &opp->u_volt_min))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("u_volt_max", S_IRUGO, d, &opp->u_volt_max))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("u_amp", S_IRUGO, d, &opp->u_amp))
+		return -ENOMEM;
+
+	if (!debugfs_create_ulong("clock_latency_ns", S_IRUGO, d,
+				  &opp->clock_latency_ns))
+		return -ENOMEM;
+
+	opp->dentry = d;
+	return 0;
+}
+
+static int device_opp_debug_create_dir(struct device_list_opp *list_dev,
+				       struct device_opp *dev_opp)
+{
+	const struct device *dev = list_dev->dev;
+	struct dentry *d;
+
+	opp_set_dev_name(dev, dev_opp->dentry_name);
+
+	/* Create device specific directory */
+	d = debugfs_create_dir(dev_opp->dentry_name, rootdir);
+	if (!d) {
+		dev_err(dev, "%s: Failed to create debugfs dir\n", __func__);
+		return -ENOMEM;
+	}
+
+	list_dev->dentry = d;
+	dev_opp->dentry = d;
+
+	return 0;
+}
+
+static int device_opp_debug_create_link(struct device_list_opp *list_dev,
+					struct device_opp *dev_opp)
+{
+	const struct device *dev = list_dev->dev;
+	char name[NAME_MAX];
+	struct dentry *d;
+
+	opp_set_dev_name(list_dev->dev, name);
+
+	/* Create device specific directory link */
+	d = debugfs_create_symlink(name, rootdir, dev_opp->dentry_name);
+	if (!d) {
+		dev_err(dev, "%s: Failed to create link\n", __func__);
+		return -ENOMEM;
+	}
+
+	list_dev->dentry = d;
+
+	return 0;
+}
+
+/**
+ * opp_debug_register - add a device opp node to the debugfs 'opp' directory
+ * @list_dev: list-dev pointer for device
+ * @dev_opp: the device-opp being added
+ *
+ * Dynamically adds device specific directory in debugfs 'opp' directory. If the
+ * device-opp is shared with other devices, then links will be created for all
+ * devices except the first.
+ *
+ * Return: 0 on success, otherwise negative error.
+ */
+int opp_debug_register(struct device_list_opp *list_dev,
+		       struct device_opp *dev_opp)
+{
+	if (!rootdir) {
+		pr_debug("%s: Uninitialized rootdir\n", __func__);
+		return -EINVAL;
+	}
+
+	if (dev_opp->dentry)
+		return device_opp_debug_create_link(list_dev, dev_opp);
+
+	return device_opp_debug_create_dir(list_dev, dev_opp);
+}
+
+static void opp_migrate_dentry(struct device_list_opp *list_dev,
+			       struct device_opp *dev_opp)
+{
+	struct device_list_opp *new_dev;
+	const struct device *dev;
+	struct dentry *dentry;
+
+	/* Look for next list-dev */
+	list_for_each_entry(new_dev, &dev_opp->dev_list, node)
+		if (new_dev != list_dev)
+			break;
+
+	/* new_dev is guaranteed to be valid here */
+	dev = new_dev->dev;
+	debugfs_remove_recursive(new_dev->dentry);
+
+	opp_set_dev_name(dev, dev_opp->dentry_name);
+
+	dentry = debugfs_rename(rootdir, list_dev->dentry, rootdir,
+				dev_opp->dentry_name);
+	if (!dentry) {
+		dev_err(dev, "%s: Failed to rename link from: %s to %s\n",
+			__func__, dev_name(list_dev->dev), dev_name(dev));
+		return;
+	}
+
+	new_dev->dentry = dentry;
+	dev_opp->dentry = dentry;
+}
+
+/**
+ * opp_debug_unregister - remove a device opp node from debugfs opp directory
+ * @list_dev: list-dev pointer for device
+ * @dev_opp: the device-opp being removed
+ *
+ * Dynamically removes device specific directory from debugfs 'opp' directory.
+ */
+void opp_debug_unregister(struct device_list_opp *list_dev,
+			  struct device_opp *dev_opp)
+{
+	if (list_dev->dentry == dev_opp->dentry) {
+		/* Move the real dentry object under another device */
+		if (!list_is_singular(&dev_opp->dev_list)) {
+			opp_migrate_dentry(list_dev, dev_opp);
+			goto out;
+		}
+		dev_opp->dentry = NULL;
+	}
+
+	debugfs_remove_recursive(list_dev->dentry);
+
+out:
+	list_dev->dentry = NULL;
+}
+
+static int __init opp_debug_init(void)
+{
+	/* Create /sys/kernel/debug/opp directory */
+	rootdir = debugfs_create_dir("opp", NULL);
+	if (!rootdir) {
+		pr_err("%s: Failed to create root directory\n", __func__);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+core_initcall(opp_debug_init);
diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h
index 7366b2aa8997..690638ef36ee 100644
--- a/drivers/base/power/opp/opp.h
+++ b/drivers/base/power/opp/opp.h
@@ -17,6 +17,7 @@
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
+#include <linux/limits.h>
 #include <linux/pm_opp.h>
 #include <linux/rculist.h>
 #include <linux/rcupdate.h>
@@ -50,9 +51,10 @@ extern struct mutex dev_opp_list_lock;
  *		are protected by the dev_opp_list_lock for integrity.
  *		IMPORTANT: the opp nodes should be maintained in increasing
  *		order.
- * @dynamic:	not-created from static DT entries.
  * @available:	true/false - marks if this OPP as available or not
+ * @dynamic:	not-created from static DT entries.
  * @turbo:	true if turbo (boost) OPP
+ * @suspend:	true if suspend OPP
  * @rate:	Frequency in hertz
  * @u_volt:	Target voltage in microvolts corresponding to this OPP
  * @u_volt_min:	Minimum voltage in microvolts corresponding to this OPP
@@ -63,6 +65,7 @@ extern struct mutex dev_opp_list_lock;
  * @dev_opp:	points back to the device_opp struct this opp belongs to
  * @rcu_head:	RCU callback head used for deferred freeing
  * @np:		OPP's device node.
+ * @dentry:	debugfs dentry pointer (per opp)
  *
  * This structure stores the OPP information for a given device.
  */
@@ -72,6 +75,7 @@ struct dev_pm_opp {
 	bool available;
 	bool dynamic;
 	bool turbo;
+	bool suspend;
 	unsigned long rate;
 
 	unsigned long u_volt;
@@ -84,6 +88,10 @@ struct dev_pm_opp {
 	struct rcu_head rcu_head;
 
 	struct device_node *np;
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *dentry;
+#endif
 };
 
 /**
@@ -91,6 +99,7 @@ struct dev_pm_opp {
  * @node:	list node
  * @dev:	device to which the struct object belongs
  * @rcu_head:	RCU callback head used for deferred freeing
+ * @dentry:	debugfs dentry pointer (per device)
  *
  * This is an internal data structure maintaining the list of devices that are
  * managed by 'struct device_opp'.
@@ -99,6 +108,10 @@ struct device_list_opp {
 	struct list_head node;
 	const struct device *dev;
 	struct rcu_head rcu_head;
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *dentry;
+#endif
 };
 
 /**
@@ -113,7 +126,14 @@ struct device_list_opp {
  * @dev_list:	list of devices that share these OPPs
  * @opp_list:	list of opps
  * @np:		struct device_node pointer for opp's DT node.
+ * @clock_latency_ns_max: Max clock latency in nanoseconds.
  * @shared_opp: OPP is shared between multiple devices.
+ * @suspend_opp: Pointer to OPP to be used during device suspend.
+ * @supported_hw: Array of version number to support.
+ * @supported_hw_count: Number of elements in supported_hw array.
+ * @prop_name: A name to postfix to many DT properties, while parsing them.
+ * @dentry:	debugfs dentry pointer of the real device directory (not links).
+ * @dentry_name: Name of the real dentry.
  *
  * This is an internal data structure maintaining the link to opps attached to
  * a device. This structure is not meant to be shared to users as it is
@@ -135,6 +155,15 @@ struct device_opp {
 	unsigned long clock_latency_ns_max;
 	bool shared_opp;
 	struct dev_pm_opp *suspend_opp;
+
+	unsigned int *supported_hw;
+	unsigned int supported_hw_count;
+	const char *prop_name;
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *dentry;
+	char dentry_name[NAME_MAX];
+#endif
 };
 
 /* Routines internal to opp core */
@@ -143,4 +172,26 @@ struct device_list_opp *_add_list_dev(const struct device *dev,
 				      struct device_opp *dev_opp);
 struct device_node *_of_get_opp_desc_node(struct device *dev);
 
+#ifdef CONFIG_DEBUG_FS
+void opp_debug_remove_one(struct dev_pm_opp *opp);
+int opp_debug_create_one(struct dev_pm_opp *opp, struct device_opp *dev_opp);
+int opp_debug_register(struct device_list_opp *list_dev,
+		       struct device_opp *dev_opp);
+void opp_debug_unregister(struct device_list_opp *list_dev,
+			  struct device_opp *dev_opp);
+#else
+static inline void opp_debug_remove_one(struct dev_pm_opp *opp) {}
+
+static inline int opp_debug_create_one(struct dev_pm_opp *opp,
+				       struct device_opp *dev_opp)
+{ return 0; }
+static inline int opp_debug_register(struct device_list_opp *list_dev,
+				     struct device_opp *dev_opp)
+{ return 0; }
+
+static inline void opp_debug_unregister(struct device_list_opp *list_dev,
+					struct device_opp *dev_opp)
+{ }
+#endif		/* DEBUG_FS */
+
 #endif		/* __DRIVER_OPP_H__ */
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index 998fa6b23084..8b06193d4a5e 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -18,6 +18,7 @@ static inline void pm_runtime_early_init(struct device *dev)
 }
 
 extern void pm_runtime_init(struct device *dev);
+extern void pm_runtime_reinit(struct device *dev);
 extern void pm_runtime_remove(struct device *dev);
 
 struct wake_irq {
@@ -84,6 +85,7 @@ static inline void pm_runtime_early_init(struct device *dev)
 }
 
 static inline void pm_runtime_init(struct device *dev) {}
+static inline void pm_runtime_reinit(struct device *dev) {}
 static inline void pm_runtime_remove(struct device *dev) {}
 
 static inline int dpm_sysfs_add(struct device *dev) { return 0; }
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index e1a10a03df8e..4c7055009bd6 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -966,6 +966,30 @@ int __pm_runtime_resume(struct device *dev, int rpmflags)
 EXPORT_SYMBOL_GPL(__pm_runtime_resume);
 
 /**
+ * pm_runtime_get_if_in_use - Conditionally bump up the device's usage counter.
+ * @dev: Device to handle.
+ *
+ * Return -EINVAL if runtime PM is disabled for the device.
+ *
+ * If that's not the case and if the device's runtime PM status is RPM_ACTIVE
+ * and the runtime PM usage counter is nonzero, increment the counter and
+ * return 1.  Otherwise return 0 without changing the counter.
+ */
+int pm_runtime_get_if_in_use(struct device *dev)
+{
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&dev->power.lock, flags);
+	retval = dev->power.disable_depth > 0 ? -EINVAL :
+		dev->power.runtime_status == RPM_ACTIVE
+			&& atomic_inc_not_zero(&dev->power.usage_count);
+	spin_unlock_irqrestore(&dev->power.lock, flags);
+	return retval;
+}
+EXPORT_SYMBOL_GPL(pm_runtime_get_if_in_use);
+
+/**
  * __pm_runtime_set_status - Set runtime PM status of a device.
  * @dev: Device to handle.
  * @status: New runtime PM status of the device.
@@ -1390,18 +1414,32 @@ void pm_runtime_init(struct device *dev)
 }
 
 /**
+ * pm_runtime_reinit - Re-initialize runtime PM fields in given device object.
+ * @dev: Device object to re-initialize.
+ */
+void pm_runtime_reinit(struct device *dev)
+{
+	if (!pm_runtime_enabled(dev)) {
+		if (dev->power.runtime_status == RPM_ACTIVE)
+			pm_runtime_set_suspended(dev);
+		if (dev->power.irq_safe) {
+			spin_lock_irq(&dev->power.lock);
+			dev->power.irq_safe = 0;
+			spin_unlock_irq(&dev->power.lock);
+			if (dev->parent)
+				pm_runtime_put(dev->parent);
+		}
+	}
+}
+
+/**
  * pm_runtime_remove - Prepare for removing a device from device hierarchy.
  * @dev: Device object being removed from device hierarchy.
  */
 void pm_runtime_remove(struct device *dev)
 {
 	__pm_runtime_disable(dev, false);
-
-	/* Change the status back to 'suspended' to match the initial status. */
-	if (dev->power.runtime_status == RPM_ACTIVE)
-		pm_runtime_set_suspended(dev);
-	if (dev->power.irq_safe && dev->parent)
-		pm_runtime_put(dev->parent);
+	pm_runtime_reinit(dev);
 }
 
 /**
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 1325ff225cc4..c359351d50f1 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -19,32 +19,14 @@
 #include <linux/etherdevice.h>
 #include <linux/phy.h>
 
-/**
- * device_add_property_set - Add a collection of properties to a device object.
- * @dev: Device to add properties to.
- * @pset: Collection of properties to add.
- *
- * Associate a collection of device properties represented by @pset with @dev
- * as its secondary firmware node.
- */
-void device_add_property_set(struct device *dev, struct property_set *pset)
-{
-	if (!pset)
-		return;
-
-	pset->fwnode.type = FWNODE_PDATA;
-	set_secondary_fwnode(dev, &pset->fwnode);
-}
-EXPORT_SYMBOL_GPL(device_add_property_set);
-
-static inline bool is_pset(struct fwnode_handle *fwnode)
+static inline bool is_pset_node(struct fwnode_handle *fwnode)
 {
 	return fwnode && fwnode->type == FWNODE_PDATA;
 }
 
-static inline struct property_set *to_pset(struct fwnode_handle *fwnode)
+static inline struct property_set *to_pset_node(struct fwnode_handle *fwnode)
 {
-	return is_pset(fwnode) ?
+	return is_pset_node(fwnode) ?
 		container_of(fwnode, struct property_set, fwnode) : NULL;
 }
 
@@ -63,45 +45,135 @@ static struct property_entry *pset_prop_get(struct property_set *pset,
 	return NULL;
 }
 
-static int pset_prop_read_array(struct property_set *pset, const char *name,
-				enum dev_prop_type type, void *val, size_t nval)
+static void *pset_prop_find(struct property_set *pset, const char *propname,
+			    size_t length)
 {
 	struct property_entry *prop;
-	unsigned int item_size;
+	void *pointer;
 
-	prop = pset_prop_get(pset, name);
+	prop = pset_prop_get(pset, propname);
 	if (!prop)
-		return -ENODATA;
+		return ERR_PTR(-EINVAL);
+	if (prop->is_array)
+		pointer = prop->pointer.raw_data;
+	else
+		pointer = &prop->value.raw_data;
+	if (!pointer)
+		return ERR_PTR(-ENODATA);
+	if (length > prop->length)
+		return ERR_PTR(-EOVERFLOW);
+	return pointer;
+}
+
+static int pset_prop_read_u8_array(struct property_set *pset,
+				   const char *propname,
+				   u8 *values, size_t nval)
+{
+	void *pointer;
+	size_t length = nval * sizeof(*values);
+
+	pointer = pset_prop_find(pset, propname, length);
+	if (IS_ERR(pointer))
+		return PTR_ERR(pointer);
+
+	memcpy(values, pointer, length);
+	return 0;
+}
+
+static int pset_prop_read_u16_array(struct property_set *pset,
+				    const char *propname,
+				    u16 *values, size_t nval)
+{
+	void *pointer;
+	size_t length = nval * sizeof(*values);
+
+	pointer = pset_prop_find(pset, propname, length);
+	if (IS_ERR(pointer))
+		return PTR_ERR(pointer);
+
+	memcpy(values, pointer, length);
+	return 0;
+}
+
+static int pset_prop_read_u32_array(struct property_set *pset,
+				    const char *propname,
+				    u32 *values, size_t nval)
+{
+	void *pointer;
+	size_t length = nval * sizeof(*values);
+
+	pointer = pset_prop_find(pset, propname, length);
+	if (IS_ERR(pointer))
+		return PTR_ERR(pointer);
+
+	memcpy(values, pointer, length);
+	return 0;
+}
+
+static int pset_prop_read_u64_array(struct property_set *pset,
+				    const char *propname,
+				    u64 *values, size_t nval)
+{
+	void *pointer;
+	size_t length = nval * sizeof(*values);
+
+	pointer = pset_prop_find(pset, propname, length);
+	if (IS_ERR(pointer))
+		return PTR_ERR(pointer);
+
+	memcpy(values, pointer, length);
+	return 0;
+}
+
+static int pset_prop_count_elems_of_size(struct property_set *pset,
+					 const char *propname, size_t length)
+{
+	struct property_entry *prop;
+
+	prop = pset_prop_get(pset, propname);
+	if (!prop)
+		return -EINVAL;
+
+	return prop->length / length;
+}
+
+static int pset_prop_read_string_array(struct property_set *pset,
+				       const char *propname,
+				       const char **strings, size_t nval)
+{
+	void *pointer;
+	size_t length = nval * sizeof(*strings);
+
+	pointer = pset_prop_find(pset, propname, length);
+	if (IS_ERR(pointer))
+		return PTR_ERR(pointer);
+
+	memcpy(strings, pointer, length);
+	return 0;
+}
+
+static int pset_prop_read_string(struct property_set *pset,
+				 const char *propname, const char **strings)
+{
+	struct property_entry *prop;
+	const char **pointer;
 
-	if (prop->type != type)
-		return -EPROTO;
-
-	if (!val)
-		return prop->nval;
-
-	if (prop->nval < nval)
-		return -EOVERFLOW;
-
-	switch (type) {
-	case DEV_PROP_U8:
-		item_size = sizeof(u8);
-		break;
-	case DEV_PROP_U16:
-		item_size = sizeof(u16);
-		break;
-	case DEV_PROP_U32:
-		item_size = sizeof(u32);
-		break;
-	case DEV_PROP_U64:
-		item_size = sizeof(u64);
-		break;
-	case DEV_PROP_STRING:
-		item_size = sizeof(const char *);
-		break;
-	default:
+	prop = pset_prop_get(pset, propname);
+	if (!prop)
 		return -EINVAL;
+	if (!prop->is_string)
+		return -EILSEQ;
+	if (prop->is_array) {
+		pointer = prop->pointer.str;
+		if (!pointer)
+			return -ENODATA;
+	} else {
+		pointer = &prop->value.str;
+		if (*pointer && strnlen(*pointer, prop->length) >= prop->length)
+			return -EILSEQ;
 	}
-	memcpy(val, prop->value.raw_data, nval * item_size);
+
+	*strings = *pointer;
 	return 0;
 }
 
@@ -124,6 +196,18 @@ bool device_property_present(struct device *dev, const char *propname)
 }
 EXPORT_SYMBOL_GPL(device_property_present);
 
+static bool __fwnode_property_present(struct fwnode_handle *fwnode,
+				      const char *propname)
+{
+	if (is_of_node(fwnode))
+		return of_property_read_bool(to_of_node(fwnode), propname);
+	else if (is_acpi_node(fwnode))
+		return !acpi_node_prop_get(fwnode, propname, NULL);
+	else if (is_pset_node(fwnode))
+		return !!pset_prop_get(to_pset_node(fwnode), propname);
+	return false;
+}
+
 /**
  * fwnode_property_present - check if a property of a firmware node is present
  * @fwnode: Firmware node whose property to check
@@ -131,12 +215,12 @@ EXPORT_SYMBOL_GPL(device_property_present);
  */
 bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
 {
-	if (is_of_node(fwnode))
-		return of_property_read_bool(to_of_node(fwnode), propname);
-	else if (is_acpi_node(fwnode))
-		return !acpi_node_prop_get(fwnode, propname, NULL);
+	bool ret;
 
-	return !!pset_prop_get(to_pset(fwnode), propname);
+	ret = __fwnode_property_present(fwnode, propname);
+	if (ret == false && fwnode && fwnode->secondary)
+		ret = __fwnode_property_present(fwnode->secondary, propname);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(fwnode_property_present);
 
@@ -309,25 +393,40 @@ int device_property_match_string(struct device *dev, const char *propname,
 }
 EXPORT_SYMBOL_GPL(device_property_match_string);
 
-#define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval) \
-	(val) ? of_property_read_##type##_array((node), (propname), (val), (nval)) \
+#define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval)				\
+	(val) ? of_property_read_##type##_array((node), (propname), (val), (nval))	\
 	      : of_property_count_elems_of_size((node), (propname), sizeof(type))
 
-#define FWNODE_PROP_READ_ARRAY(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_) \
-({ \
-	int _ret_; \
-	if (is_of_node(_fwnode_)) \
-		_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \
-					       _type_, _val_, _nval_); \
-	else if (is_acpi_node(_fwnode_)) \
-		_ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_, \
-					    _val_, _nval_); \
-	else if (is_pset(_fwnode_)) \
-		_ret_ = pset_prop_read_array(to_pset(_fwnode_), _propname_, \
-					     _proptype_, _val_, _nval_); \
-	else \
-		_ret_ = -ENXIO; \
-	_ret_; \
+#define PSET_PROP_READ_ARRAY(node, propname, type, val, nval)				\
+	(val) ? pset_prop_read_##type##_array((node), (propname), (val), (nval))	\
+	      : pset_prop_count_elems_of_size((node), (propname), sizeof(type))
+
+#define FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_)	\
+({											\
+	int _ret_;									\
+	if (is_of_node(_fwnode_))							\
+		_ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_,	\
+					       _type_, _val_, _nval_);			\
+	else if (is_acpi_node(_fwnode_))						\
+		_ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_,		\
+					    _val_, _nval_);				\
+	else if (is_pset_node(_fwnode_)) 						\
+		_ret_ = PSET_PROP_READ_ARRAY(to_pset_node(_fwnode_), _propname_,	\
+					     _type_, _val_, _nval_);			\
+	else										\
+		_ret_ = -ENXIO;								\
+	_ret_;										\
+})
+
+#define FWNODE_PROP_READ_ARRAY(_fwnode_, _propname_, _type_, _proptype_, _val_, _nval_)	\
+({											\
+	int _ret_;									\
+	_ret_ = FWNODE_PROP_READ(_fwnode_, _propname_, _type_, _proptype_,		\
+				 _val_, _nval_);					\
+	if (_ret_ == -EINVAL && _fwnode_ && _fwnode_->secondary)			\
+		_ret_ = FWNODE_PROP_READ(_fwnode_->secondary, _propname_, _type_,	\
+				_proptype_, _val_, _nval_);				\
+	_ret_;										\
 })
 
 /**
@@ -434,6 +533,41 @@ int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,
 }
 EXPORT_SYMBOL_GPL(fwnode_property_read_u64_array);
 
+static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,
+					       const char *propname,
+					       const char **val, size_t nval)
+{
+	if (is_of_node(fwnode))
+		return val ?
+			of_property_read_string_array(to_of_node(fwnode),
+						      propname, val, nval) :
+			of_property_count_strings(to_of_node(fwnode), propname);
+	else if (is_acpi_node(fwnode))
+		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
+					   val, nval);
+	else if (is_pset_node(fwnode))
+		return val ?
+			pset_prop_read_string_array(to_pset_node(fwnode),
+						    propname, val, nval) :
+			pset_prop_count_elems_of_size(to_pset_node(fwnode),
+						      propname,
+						      sizeof(const char *));
+	return -ENXIO;
+}
+
+static int __fwnode_property_read_string(struct fwnode_handle *fwnode,
+					 const char *propname, const char **val)
+{
+	if (is_of_node(fwnode))
+		return of_property_read_string(to_of_node(fwnode), propname, val);
+	else if (is_acpi_node(fwnode))
+		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
+					   val, 1);
+	else if (is_pset_node(fwnode))
+		return pset_prop_read_string(to_pset_node(fwnode), propname, val);
+	return -ENXIO;
+}
+
 /**
  * fwnode_property_read_string_array - return string array property of a node
  * @fwnode: Firmware node to get the property of
@@ -456,18 +590,13 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
 				      const char *propname, const char **val,
 				      size_t nval)
 {
-	if (is_of_node(fwnode))
-		return val ?
-			of_property_read_string_array(to_of_node(fwnode),
-						      propname, val, nval) :
-			of_property_count_strings(to_of_node(fwnode), propname);
-	else if (is_acpi_node(fwnode))
-		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
-					   val, nval);
-	else if (is_pset(fwnode))
-		return pset_prop_read_array(to_pset(fwnode), propname,
-					    DEV_PROP_STRING, val, nval);
-	return -ENXIO;
+	int ret;
+
+	ret = __fwnode_property_read_string_array(fwnode, propname, val, nval);
+	if (ret == -EINVAL && fwnode && fwnode->secondary)
+		ret = __fwnode_property_read_string_array(fwnode->secondary,
+							  propname, val, nval);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
 
@@ -489,14 +618,13 @@ EXPORT_SYMBOL_GPL(fwnode_property_read_string_array);
 int fwnode_property_read_string(struct fwnode_handle *fwnode,
 				const char *propname, const char **val)
 {
-	if (is_of_node(fwnode))
-		return of_property_read_string(to_of_node(fwnode), propname, val);
-	else if (is_acpi_node(fwnode))
-		return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
-					   val, 1);
+	int ret;
 
-	return pset_prop_read_array(to_pset(fwnode), propname,
-				    DEV_PROP_STRING, val, 1);
+	ret = __fwnode_property_read_string(fwnode, propname, val);
+	if (ret == -EINVAL && fwnode && fwnode->secondary)
+		ret = __fwnode_property_read_string(fwnode->secondary,
+						    propname, val);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(fwnode_property_read_string);
 
@@ -525,6 +653,9 @@ int fwnode_property_match_string(struct fwnode_handle *fwnode,
 	if (nval < 0)
 		return nval;
 
+	if (nval == 0)
+		return -ENODATA;
+
 	values = kcalloc(nval, sizeof(*values), GFP_KERNEL);
 	if (!values)
 		return -ENOMEM;
@@ -547,6 +678,182 @@ out:
 EXPORT_SYMBOL_GPL(fwnode_property_match_string);
 
 /**
+ * pset_free_set - releases memory allocated for copied property set
+ * @pset: Property set to release
+ *
+ * Function takes previously copied property set and releases all the
+ * memory allocated to it.
+ */
+static void pset_free_set(struct property_set *pset)
+{
+	const struct property_entry *prop;
+	size_t i, nval;
+
+	if (!pset)
+		return;
+
+	for (prop = pset->properties; prop->name; prop++) {
+		if (prop->is_array) {
+			if (prop->is_string && prop->pointer.str) {
+				nval = prop->length / sizeof(const char *);
+				for (i = 0; i < nval; i++)
+					kfree(prop->pointer.str[i]);
+			}
+			kfree(prop->pointer.raw_data);
+		} else if (prop->is_string) {
+			kfree(prop->value.str);
+		}
+		kfree(prop->name);
+	}
+
+	kfree(pset->properties);
+	kfree(pset);
+}
+
+static int pset_copy_entry(struct property_entry *dst,
+			   const struct property_entry *src)
+{
+	const char **d, **s;
+	size_t i, nval;
+
+	dst->name = kstrdup(src->name, GFP_KERNEL);
+	if (!dst->name)
+		return -ENOMEM;
+
+	if (src->is_array) {
+		if (!src->length)
+			return -ENODATA;
+
+		if (src->is_string) {
+			nval = src->length / sizeof(const char *);
+			dst->pointer.str = kcalloc(nval, sizeof(const char *),
+						   GFP_KERNEL);
+			if (!dst->pointer.str)
+				return -ENOMEM;
+
+			d = dst->pointer.str;
+			s = src->pointer.str;
+			for (i = 0; i < nval; i++) {
+				d[i] = kstrdup(s[i], GFP_KERNEL);
+				if (!d[i] && s[i])
+					return -ENOMEM;
+			}
+		} else {
+			dst->pointer.raw_data = kmemdup(src->pointer.raw_data,
+							src->length, GFP_KERNEL);
+			if (!dst->pointer.raw_data)
+				return -ENOMEM;
+		}
+	} else if (src->is_string) {
+		dst->value.str = kstrdup(src->value.str, GFP_KERNEL);
+		if (!dst->value.str && src->value.str)
+			return -ENOMEM;
+	} else {
+		dst->value.raw_data = src->value.raw_data;
+	}
+
+	dst->length = src->length;
+	dst->is_array = src->is_array;
+	dst->is_string = src->is_string;
+
+	return 0;
+}
+
+/**
+ * pset_copy_set - copies property set
+ * @pset: Property set to copy
+ *
+ * This function takes a deep copy of the given property set and returns
+ * pointer to the copy. Call device_free_property_set() to free resources
+ * allocated in this function.
+ *
+ * Return: Pointer to the new property set or error pointer.
+ */
+static struct property_set *pset_copy_set(const struct property_set *pset)
+{
+	const struct property_entry *entry;
+	struct property_set *p;
+	size_t i, n = 0;
+
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return ERR_PTR(-ENOMEM);
+
+	while (pset->properties[n].name)
+		n++;
+
+	p->properties = kcalloc(n + 1, sizeof(*entry), GFP_KERNEL);
+	if (!p->properties) {
+		kfree(p);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	for (i = 0; i < n; i++) {
+		int ret = pset_copy_entry(&p->properties[i],
+					  &pset->properties[i]);
+		if (ret) {
+			pset_free_set(p);
+			return ERR_PTR(ret);
+		}
+	}
+
+	return p;
+}
+
+/**
+ * device_remove_property_set - Remove properties from a device object.
+ * @dev: Device whose properties to remove.
+ *
+ * The function removes properties previously associated to the device
+ * secondary firmware node with device_add_property_set(). Memory allocated
+ * to the properties will also be released.
+ */
+void device_remove_property_set(struct device *dev)
+{
+	struct fwnode_handle *fwnode;
+
+	fwnode = dev_fwnode(dev);
+	if (!fwnode)
+		return;
+	/*
+	 * Pick either primary or secondary node depending which one holds
+	 * the pset. If there is no real firmware node (ACPI/DT) primary
+	 * will hold the pset.
+	 */
+	if (!is_pset_node(fwnode))
+		fwnode = fwnode->secondary;
+	if (!IS_ERR(fwnode) && is_pset_node(fwnode))
+		pset_free_set(to_pset_node(fwnode));
+	set_secondary_fwnode(dev, NULL);
+}
+EXPORT_SYMBOL_GPL(device_remove_property_set);
+
+/**
+ * device_add_property_set - Add a collection of properties to a device object.
+ * @dev: Device to add properties to.
+ * @pset: Collection of properties to add.
+ *
+ * Associate a collection of device properties represented by @pset with @dev
+ * as its secondary firmware node. The function takes a copy of @pset.
+ */
+int device_add_property_set(struct device *dev, const struct property_set *pset)
+{
+	struct property_set *p;
+
+	if (!pset)
+		return -EINVAL;
+
+	p = pset_copy_set(pset);
+	if (IS_ERR(p))
+		return PTR_ERR(p);
+
+	p->fwnode.type = FWNODE_PDATA;
+	set_secondary_fwnode(dev, &p->fwnode);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(device_add_property_set);
+
+/**
  * device_get_next_child_node - Return the next child node handle for a device
  * @dev: Device to find the next child node for.
  * @child: Handle to one of the device's child nodes or a null handle.
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b38bd06d564c..63c2064689f8 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3848,7 +3848,7 @@ static void print_cfg_table(ctlr_info_t *h)
 	       readl(&(tb->HostWrite.CoalIntDelay)));
 	dev_dbg(&h->pdev->dev, "   Coalesce Interrupt Count = 0x%x\n",
 	       readl(&(tb->HostWrite.CoalIntCount)));
-	dev_dbg(&h->pdev->dev, "   Max outstanding commands = 0x%d\n",
+	dev_dbg(&h->pdev->dev, "   Max outstanding commands = 0x%x\n",
 	       readl(&(tb->CmdsOutMax)));
 	dev_dbg(&h->pdev->dev, "   Bus Types = 0x%x\n",
 		readl(&(tb->BusTypes)));
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 331363e7de0f..9e251201dd48 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3585,7 +3585,7 @@ static void __init config_types(void)
 		unsigned int type = UDP->cmos;
 		struct floppy_drive_params *params;
 		const char *name = NULL;
-		static char temparea[32];
+		char temparea[32];
 
 		if (type < ARRAY_SIZE(default_drive_params)) {
 			params = &default_drive_params[type].params;
@@ -3596,7 +3596,8 @@ static void __init config_types(void)
 				allowed_drive_mask &= ~(1 << drive);
 		} else {
 			params = &default_drive_params[0].params;
-			sprintf(temparea, "unknown type %d (usb?)", type);
+			snprintf(temparea, sizeof(temparea),
+				 "unknown type %d (usb?)", type);
 			name = temparea;
 		}
 		if (name) {
diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c
index 5cb13ca3a3ac..3ef42e563bb5 100644
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -74,18 +74,18 @@ static void zcomp_strm_free(struct zcomp *comp, struct zcomp_strm *zstrm)
  * allocate new zcomp_strm structure with ->private initialized by
  * backend, return NULL on error
  */
-static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)
+static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp, gfp_t flags)
 {
-	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL);
+	struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), flags);
 	if (!zstrm)
 		return NULL;
 
-	zstrm->private = comp->backend->create();
+	zstrm->private = comp->backend->create(flags);
 	/*
 	 * allocate 2 pages. 1 for compressed data, plus 1 extra for the
 	 * case when compressed size is larger than the original one
 	 */
-	zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
+	zstrm->buffer = (void *)__get_free_pages(flags | __GFP_ZERO, 1);
 	if (!zstrm->private || !zstrm->buffer) {
 		zcomp_strm_free(comp, zstrm);
 		zstrm = NULL;
@@ -120,8 +120,16 @@ static struct zcomp_strm *zcomp_strm_multi_find(struct zcomp *comp)
 		/* allocate new zstrm stream */
 		zs->avail_strm++;
 		spin_unlock(&zs->strm_lock);
-
-		zstrm = zcomp_strm_alloc(comp);
+		/*
+		 * This function can be called in swapout/fs write path
+		 * so we can't use GFP_FS|IO. And it assumes we already
+		 * have at least one stream in zram initialization so we
+		 * don't do best effort to allocate more stream in here.
+		 * A default stream will work well without further multiple
+		 * streams. That's why we use NORETRY | NOWARN.
+		 */
+		zstrm = zcomp_strm_alloc(comp, GFP_NOIO | __GFP_NORETRY |
+					__GFP_NOWARN);
 		if (!zstrm) {
 			spin_lock(&zs->strm_lock);
 			zs->avail_strm--;
@@ -209,7 +217,7 @@ static int zcomp_strm_multi_create(struct zcomp *comp, int max_strm)
 	zs->max_strm = max_strm;
 	zs->avail_strm = 1;
 
-	zstrm = zcomp_strm_alloc(comp);
+	zstrm = zcomp_strm_alloc(comp, GFP_KERNEL);
 	if (!zstrm) {
 		kfree(zs);
 		return -ENOMEM;
@@ -259,7 +267,7 @@ static int zcomp_strm_single_create(struct zcomp *comp)
 
 	comp->stream = zs;
 	mutex_init(&zs->strm_lock);
-	zs->zstrm = zcomp_strm_alloc(comp);
+	zs->zstrm = zcomp_strm_alloc(comp, GFP_KERNEL);
 	if (!zs->zstrm) {
 		kfree(zs);
 		return -ENOMEM;
diff --git a/drivers/block/zram/zcomp.h b/drivers/block/zram/zcomp.h
index 46e2b9f8f1f0..b7d2a4bcae54 100644
--- a/drivers/block/zram/zcomp.h
+++ b/drivers/block/zram/zcomp.h
@@ -33,7 +33,7 @@ struct zcomp_backend {
 	int (*decompress)(const unsigned char *src, size_t src_len,
 			unsigned char *dst);
 
-	void *(*create)(void);
+	void *(*create)(gfp_t flags);
 	void (*destroy)(void *private);
 
 	const char *name;
diff --git a/drivers/block/zram/zcomp_lz4.c b/drivers/block/zram/zcomp_lz4.c
index f2afb7e988c3..0110086accba 100644
--- a/drivers/block/zram/zcomp_lz4.c
+++ b/drivers/block/zram/zcomp_lz4.c
@@ -10,17 +10,26 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lz4.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lz4.h"
 
-static void *zcomp_lz4_create(void)
+static void *zcomp_lz4_create(gfp_t flags)
 {
-	return kzalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	ret = kmalloc(LZ4_MEM_COMPRESS, flags);
+	if (!ret)
+		ret = __vmalloc(LZ4_MEM_COMPRESS,
+				flags | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void zcomp_lz4_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
diff --git a/drivers/block/zram/zcomp_lzo.c b/drivers/block/zram/zcomp_lzo.c
index da1bc47d588e..ed7a1f0549ec 100644
--- a/drivers/block/zram/zcomp_lzo.c
+++ b/drivers/block/zram/zcomp_lzo.c
@@ -10,17 +10,26 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 
 #include "zcomp_lzo.h"
 
-static void *lzo_create(void)
+static void *lzo_create(gfp_t flags)
 {
-	return kzalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL);
+	void *ret;
+
+	ret = kmalloc(LZO1X_MEM_COMPRESS, flags);
+	if (!ret)
+		ret = __vmalloc(LZO1X_MEM_COMPRESS,
+				flags | __GFP_HIGHMEM,
+				PAGE_KERNEL);
+	return ret;
 }
 
 static void lzo_destroy(void *private)
 {
-	kfree(private);
+	kvfree(private);
 }
 
 static int lzo_compress(const unsigned char *src, unsigned char *dst,
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index e3536da05c88..94fb407d8561 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -472,9 +472,10 @@ static DEFINE_MUTEX(smi_watchers_mutex);
 #define ipmi_get_stat(intf, stat) \
 	((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
 
-static char *addr_src_to_str[] = { "invalid", "hotmod", "hardcoded", "SPMI",
-				   "ACPI", "SMBIOS", "PCI",
-				   "device-tree", "default" };
+static const char * const addr_src_to_str[] = {
+	"invalid", "hotmod", "hardcoded", "SPMI", "ACPI", "SMBIOS", "PCI",
+	"device-tree", "default"
+};
 
 const char *ipmi_addr_src_to_str(enum ipmi_addr_src src)
 {
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 4cc72fa017c7..9fda22e3387e 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -105,7 +105,8 @@ enum si_intf_state {
 enum si_type {
     SI_KCS, SI_SMIC, SI_BT
 };
-static char *si_to_str[] = { "kcs", "smic", "bt" };
+
+static const char * const si_to_str[] = { "kcs", "smic", "bt" };
 
 #define DEVICE_NAME "ipmi_si"
 
@@ -1341,7 +1342,7 @@ static unsigned int num_slave_addrs;
 
 #define IPMI_IO_ADDR_SPACE  0
 #define IPMI_MEM_ADDR_SPACE 1
-static char *addr_space_to_str[] = { "i/o", "mem" };
+static const char * const addr_space_to_str[] = { "i/o", "mem" };
 
 static int hotmod_handler(const char *val, struct kernel_param *kp);
 
@@ -1723,27 +1724,31 @@ static int mem_setup(struct smi_info *info)
  */
 enum hotmod_op { HM_ADD, HM_REMOVE };
 struct hotmod_vals {
-	char *name;
-	int  val;
+	const char *name;
+	const int  val;
 };
-static struct hotmod_vals hotmod_ops[] = {
+
+static const struct hotmod_vals hotmod_ops[] = {
 	{ "add",	HM_ADD },
 	{ "remove",	HM_REMOVE },
 	{ NULL }
 };
-static struct hotmod_vals hotmod_si[] = {
+
+static const struct hotmod_vals hotmod_si[] = {
 	{ "kcs",	SI_KCS },
 	{ "smic",	SI_SMIC },
 	{ "bt",		SI_BT },
 	{ NULL }
 };
-static struct hotmod_vals hotmod_as[] = {
+
+static const struct hotmod_vals hotmod_as[] = {
 	{ "mem",	IPMI_MEM_ADDR_SPACE },
 	{ "i/o",	IPMI_IO_ADDR_SPACE },
 	{ NULL }
 };
 
-static int parse_str(struct hotmod_vals *v, int *val, char *name, char **curr)
+static int parse_str(const struct hotmod_vals *v, int *val, char *name,
+		     char **curr)
 {
 	char *s;
 	int  i;
@@ -2554,7 +2559,6 @@ static void ipmi_pci_remove(struct pci_dev *pdev)
 {
 	struct smi_info *info = pci_get_drvdata(pdev);
 	cleanup_one_si(info);
-	pci_disable_device(pdev);
 }
 
 static const struct pci_device_id ipmi_pci_devices[] = {
@@ -2870,7 +2874,7 @@ static int ipmi_parisc_remove(struct parisc_device *dev)
 	return 0;
 }
 
-static struct parisc_device_id ipmi_parisc_tbl[] = {
+static const struct parisc_device_id ipmi_parisc_tbl[] = {
 	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
 	{ 0, }
 };
@@ -3444,8 +3448,8 @@ static inline void wait_for_timer_and_thread(struct smi_info *smi_info)
 
 static const struct ipmi_default_vals
 {
-	int type;
-	int port;
+	const int type;
+	const int port;
 } ipmi_defaults[] =
 {
 	{ .type = SI_KCS, .port = 0xca2 },
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 90e624662257..5f1c3d08ba65 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1959,7 +1959,6 @@ MODULE_DEVICE_TABLE(i2c, ssif_id);
 static struct i2c_driver ssif_i2c_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver		= {
-		.owner			= THIS_MODULE,
 		.name			= DEVICE_NAME
 	},
 	.probe		= ssif_probe,
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index b251013eef0a..56777f04d2d9 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -152,7 +152,7 @@ config CLKSRC_EFM32
 
 config CLKSRC_LPC32XX
 	bool "Clocksource for LPC32XX" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
+	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	help
@@ -160,6 +160,7 @@ config CLKSRC_LPC32XX
 
 config CLKSRC_PISTACHIO
 	bool "Clocksource for Pistachio SoC" if COMPILE_TEST
+	depends on HAS_IOMEM
 	select CLKSRC_OF
 	help
 	  Enables the clocksource for the Pistachio SoC.
@@ -256,6 +257,7 @@ config CLKSRC_SAMSUNG_PWM
 config FSL_FTM_TIMER
 	bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 	depends on GENERIC_CLOCKEVENTS
+	select CLKSRC_MMIO
 	help
 	  Support for Freescale FlexTimer Module (FTM) timer.
 
@@ -269,7 +271,7 @@ config SYS_SUPPORTS_SH_CMT
 
 config MTK_TIMER
 	bool "Mediatek timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
+	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	select CLKSRC_OF
 	select CLKSRC_MMIO
 	help
@@ -365,20 +367,20 @@ config CLKSRC_PXA
 
 config H8300_TMR8
         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS
+        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	help
 	  This enables the 8 bits timer for the H8300 platform.
 
 config H8300_TMR16
         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS
+        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	help
 	  This enables the 16 bits timer for the H8300 platform with the
 	  H83069 cpu.
 
 config H8300_TPU
         bool "Clocksource for the H8300 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS
+        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	help
 	  This enables the clocksource for the H8300 platform with the
 	  H8S2678 cpu.
@@ -391,6 +393,7 @@ config CLKSRC_IMX_GPT
 config CLKSRC_ST_LPC
 	bool "Low power clocksource found in the LPC" if COMPILE_TEST
 	select CLKSRC_OF if OF
+	depends on HAS_IOMEM
 	help
 	  Enable this option to use the Low Power controller timer
 	  as clocksource.
diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c
index de49805fbb09..ddb409274f45 100644
--- a/drivers/clocksource/vt8500_timer.c
+++ b/drivers/clocksource/vt8500_timer.c
@@ -49,6 +49,8 @@
 
 #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
 
+#define MIN_OSCR_DELTA		16
+
 static void __iomem *regbase;
 
 static cycle_t vt8500_timer_read(struct clocksource *cs)
@@ -79,7 +81,7 @@ static int vt8500_timer_set_next_event(unsigned long cycles,
 		cpu_relax();
 	writel((unsigned long)alarm, regbase + TIMER_MATCH_VAL);
 
-	if ((signed)(alarm - clocksource.read(&clocksource)) <= 16)
+	if ((signed)(alarm - clocksource.read(&clocksource)) <= MIN_OSCR_DELTA)
 		return -ETIME;
 
 	writel(1, regbase + TIMER_IER_VAL);
@@ -150,7 +152,7 @@ static void __init vt8500_timer_init(struct device_node *np)
 		pr_err("%s: setup_irq failed for %s\n", __func__,
 							clockevent.name);
 	clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ,
-					4, 0xf0000000);
+					MIN_OSCR_DELTA * 2, 0xf0000000);
 }
 
 CLOCKSOURCE_OF_DECLARE(vt8500, "via,vt8500-timer", vt8500_timer_init);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index b1f8a73e5a94..0031069b64c9 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -6,6 +6,8 @@
 config ARM_BIG_LITTLE_CPUFREQ
 	tristate "Generic ARM big LITTLE CPUfreq driver"
 	depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
+	# if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
+	depends on !CPU_THERMAL || THERMAL
 	select PM_OPP
 	help
 	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
@@ -217,6 +219,16 @@ config ARM_SPEAR_CPUFREQ
 	help
 	  This adds the CPUFreq driver support for SPEAr SOCs.
 
+config ARM_STI_CPUFREQ
+	tristate "STi CPUFreq support"
+	depends on SOC_STIH407
+	help
+	  This driver uses the generic OPP framework to match the running
+	  platform with a predefined set of suitable values.  If not provided
+	  we will fall-back so safe-values contained in Device Tree.  Enable
+	  this config option if you wish to add CPUFreq support for STi based
+	  SoCs.
+
 config ARM_TEGRA20_CPUFREQ
 	bool "Tegra20 CPUFreq support"
 	depends on ARCH_TEGRA
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index c0af1a1281c8..9e63fb1b09f8 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -73,6 +73,7 @@ obj-$(CONFIG_ARM_SA1100_CPUFREQ)	+= sa1100-cpufreq.o
 obj-$(CONFIG_ARM_SA1110_CPUFREQ)	+= sa1110-cpufreq.o
 obj-$(CONFIG_ARM_SCPI_CPUFREQ)		+= scpi-cpufreq.o
 obj-$(CONFIG_ARM_SPEAR_CPUFREQ)		+= spear-cpufreq.o
+obj-$(CONFIG_ARM_STI_CPUFREQ)		+= sti-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA20_CPUFREQ)	+= tegra20-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA124_CPUFREQ)	+= tegra124-cpufreq.o
 obj-$(CONFIG_ARM_VEXPRESS_SPC_CPUFREQ)	+= vexpress-spc-cpufreq.o
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index cec1ee2d2f74..51eef87bbc37 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -135,7 +135,7 @@ static void boost_set_msrs(bool enable, const struct cpumask *cpumask)
 	wrmsr_on_cpus(cpumask, msr_addr, msrs);
 }
 
-static int _store_boost(int val)
+static int set_boost(int val)
 {
 	get_online_cpus();
 	boost_set_msrs(val, cpu_online_mask);
@@ -158,29 +158,24 @@ static ssize_t show_freqdomain_cpus(struct cpufreq_policy *policy, char *buf)
 cpufreq_freq_attr_ro(freqdomain_cpus);
 
 #ifdef CONFIG_X86_ACPI_CPUFREQ_CPB
-static ssize_t store_boost(const char *buf, size_t count)
+static ssize_t store_cpb(struct cpufreq_policy *policy, const char *buf,
+			 size_t count)
 {
 	int ret;
-	unsigned long val = 0;
+	unsigned int val = 0;
 
-	if (!acpi_cpufreq_driver.boost_supported)
+	if (!acpi_cpufreq_driver.set_boost)
 		return -EINVAL;
 
-	ret = kstrtoul(buf, 10, &val);
-	if (ret || (val > 1))
+	ret = kstrtouint(buf, 10, &val);
+	if (ret || val > 1)
 		return -EINVAL;
 
-	_store_boost((int) val);
+	set_boost(val);
 
 	return count;
 }
 
-static ssize_t store_cpb(struct cpufreq_policy *policy, const char *buf,
-			 size_t count)
-{
-	return store_boost(buf, count);
-}
-
 static ssize_t show_cpb(struct cpufreq_policy *policy, char *buf)
 {
 	return sprintf(buf, "%u\n", acpi_cpufreq_driver.boost_enabled);
@@ -905,7 +900,6 @@ static struct cpufreq_driver acpi_cpufreq_driver = {
 	.resume		= acpi_cpufreq_resume,
 	.name		= "acpi-cpufreq",
 	.attr		= acpi_cpufreq_attr,
-	.set_boost      = _store_boost,
 };
 
 static void __init acpi_cpufreq_boost_init(void)
@@ -916,7 +910,7 @@ static void __init acpi_cpufreq_boost_init(void)
 		if (!msrs)
 			return;
 
-		acpi_cpufreq_driver.boost_supported = true;
+		acpi_cpufreq_driver.set_boost = set_boost;
 		acpi_cpufreq_driver.boost_enabled = boost_state(0);
 
 		cpu_notifier_register_begin();
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index c5d256caa664..c251247ae661 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -23,6 +23,7 @@
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/cpumask.h>
+#include <linux/cpu_cooling.h>
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
@@ -55,6 +56,7 @@ static bool bL_switching_enabled;
 #define ACTUAL_FREQ(cluster, freq)  ((cluster == A7_CLUSTER) ? freq << 1 : freq)
 #define VIRT_FREQ(cluster, freq)    ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
 
+static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
 static struct cpufreq_arm_bL_ops *arm_bL_ops;
 static struct clk *clk[MAX_CLUSTERS];
 static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
@@ -493,6 +495,12 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 static int bL_cpufreq_exit(struct cpufreq_policy *policy)
 {
 	struct device *cpu_dev;
+	int cur_cluster = cpu_to_cluster(policy->cpu);
+
+	if (cur_cluster < MAX_CLUSTERS) {
+		cpufreq_cooling_unregister(cdev[cur_cluster]);
+		cdev[cur_cluster] = NULL;
+	}
 
 	cpu_dev = get_cpu_device(policy->cpu);
 	if (!cpu_dev) {
@@ -507,6 +515,38 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
+static void bL_cpufreq_ready(struct cpufreq_policy *policy)
+{
+	struct device *cpu_dev = get_cpu_device(policy->cpu);
+	int cur_cluster = cpu_to_cluster(policy->cpu);
+	struct device_node *np;
+
+	/* Do not register a cpu_cooling device if we are in IKS mode */
+	if (cur_cluster >= MAX_CLUSTERS)
+		return;
+
+	np = of_node_get(cpu_dev->of_node);
+	if (WARN_ON(!np))
+		return;
+
+	if (of_find_property(np, "#cooling-cells", NULL)) {
+		u32 power_coefficient = 0;
+
+		of_property_read_u32(np, "dynamic-power-coefficient",
+				     &power_coefficient);
+
+		cdev[cur_cluster] = of_cpufreq_power_cooling_register(np,
+				policy->related_cpus, power_coefficient, NULL);
+		if (IS_ERR(cdev[cur_cluster])) {
+			dev_err(cpu_dev,
+				"running cpufreq without cooling device: %ld\n",
+				PTR_ERR(cdev[cur_cluster]));
+			cdev[cur_cluster] = NULL;
+		}
+	}
+	of_node_put(np);
+}
+
 static struct cpufreq_driver bL_cpufreq_driver = {
 	.name			= "arm-big-little",
 	.flags			= CPUFREQ_STICKY |
@@ -517,6 +557,7 @@ static struct cpufreq_driver bL_cpufreq_driver = {
 	.get			= bL_cpufreq_get_rate,
 	.init			= bL_cpufreq_init,
 	.exit			= bL_cpufreq_exit,
+	.ready			= bL_cpufreq_ready,
 	.attr			= cpufreq_generic_attr,
 };
 
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index a9f8e5bd0716..12e97d8a9db0 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -112,7 +112,7 @@ static unsigned int bfin_getfreq_khz(unsigned int cpu)
 }
 
 #ifdef CONFIG_BF60x
-unsigned long cpu_set_cclk(int cpu, unsigned long new)
+static int cpu_set_cclk(int cpu, unsigned long new)
 {
 	struct clk *clk;
 	int ret;
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 90d64081ddb3..9bc37c437874 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -50,7 +50,8 @@ static int set_target(struct cpufreq_policy *policy, unsigned int index)
 	struct private_data *priv = policy->driver_data;
 	struct device *cpu_dev = priv->cpu_dev;
 	struct regulator *cpu_reg = priv->cpu_reg;
-	unsigned long volt = 0, volt_old = 0, tol = 0;
+	unsigned long volt = 0, tol = 0;
+	int volt_old = 0;
 	unsigned int old_freq, new_freq;
 	long freq_Hz, freq_exact;
 	int ret;
@@ -83,7 +84,7 @@ static int set_target(struct cpufreq_policy *policy, unsigned int index)
 			opp_freq / 1000, volt);
 	}
 
-	dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n",
+	dev_dbg(cpu_dev, "%u MHz, %d mV --> %u MHz, %ld mV\n",
 		old_freq / 1000, (volt_old > 0) ? volt_old / 1000 : -1,
 		new_freq / 1000, volt ? volt / 1000 : -1);
 
@@ -407,8 +408,13 @@ static void cpufreq_ready(struct cpufreq_policy *policy)
 	 * thermal DT code takes care of matching them.
 	 */
 	if (of_find_property(np, "#cooling-cells", NULL)) {
-		priv->cdev = of_cpufreq_cooling_register(np,
-							 policy->related_cpus);
+		u32 power_coefficient = 0;
+
+		of_property_read_u32(np, "dynamic-power-coefficient",
+				     &power_coefficient);
+
+		priv->cdev = of_cpufreq_power_cooling_register(np,
+				policy->related_cpus, power_coefficient, NULL);
 		if (IS_ERR(priv->cdev)) {
 			dev_err(priv->cpu_dev,
 				"running cpufreq without cooling device: %ld\n",
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 8412ce5f93a7..c35e7da1ed7a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2330,29 +2330,15 @@ int cpufreq_boost_trigger_state(int state)
 	return ret;
 }
 
-int cpufreq_boost_supported(void)
+static bool cpufreq_boost_supported(void)
 {
-	if (likely(cpufreq_driver))
-		return cpufreq_driver->boost_supported;
-
-	return 0;
+	return likely(cpufreq_driver) && cpufreq_driver->set_boost;
 }
-EXPORT_SYMBOL_GPL(cpufreq_boost_supported);
 
 static int create_boost_sysfs_file(void)
 {
 	int ret;
 
-	if (!cpufreq_boost_supported())
-		return 0;
-
-	/*
-	 * Check if driver provides function to enable boost -
-	 * if not, use cpufreq_boost_set_sw as default
-	 */
-	if (!cpufreq_driver->set_boost)
-		cpufreq_driver->set_boost = cpufreq_boost_set_sw;
-
 	ret = sysfs_create_file(cpufreq_global_kobject, &boost.attr);
 	if (ret)
 		pr_err("%s: cannot register global BOOST sysfs file\n",
@@ -2375,7 +2361,7 @@ int cpufreq_enable_boost_support(void)
 	if (cpufreq_boost_supported())
 		return 0;
 
-	cpufreq_driver->boost_supported = true;
+	cpufreq_driver->set_boost = cpufreq_boost_set_sw;
 
 	/* This will get removed on driver unregister */
 	return create_boost_sysfs_file();
@@ -2435,9 +2421,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 	if (driver_data->setpolicy)
 		driver_data->flags |= CPUFREQ_CONST_LOOPS;
 
-	ret = create_boost_sysfs_file();
-	if (ret)
-		goto err_null_driver;
+	if (cpufreq_boost_supported()) {
+		ret = create_boost_sysfs_file();
+		if (ret)
+			goto err_null_driver;
+	}
 
 	ret = subsys_interface_register(&cpufreq_interface);
 	if (ret)
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 1fa1deb6e91f..606ad74abe6e 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -115,13 +115,13 @@ static void cs_check_cpu(int cpu, unsigned int load)
 	}
 }
 
-static unsigned int cs_dbs_timer(struct cpu_dbs_info *cdbs,
-				 struct dbs_data *dbs_data, bool modify_all)
+static unsigned int cs_dbs_timer(struct cpufreq_policy *policy, bool modify_all)
 {
+	struct dbs_data *dbs_data = policy->governor_data;
 	struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
 
 	if (modify_all)
-		dbs_check_cpu(dbs_data, cdbs->shared->policy->cpu);
+		dbs_check_cpu(dbs_data, policy->cpu);
 
 	return delay_for_sampling_rate(cs_tuners->sampling_rate);
 }
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index b260576ddb12..bab3a514ec12 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -84,6 +84,9 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
 			(cur_wall_time - j_cdbs->prev_cpu_wall);
 		j_cdbs->prev_cpu_wall = cur_wall_time;
 
+		if (cur_idle_time < j_cdbs->prev_cpu_idle)
+			cur_idle_time = j_cdbs->prev_cpu_idle;
+
 		idle_time = (unsigned int)
 			(cur_idle_time - j_cdbs->prev_cpu_idle);
 		j_cdbs->prev_cpu_idle = cur_idle_time;
@@ -158,47 +161,55 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
 }
 EXPORT_SYMBOL_GPL(dbs_check_cpu);
 
-static inline void __gov_queue_work(int cpu, struct dbs_data *dbs_data,
-		unsigned int delay)
+void gov_add_timers(struct cpufreq_policy *policy, unsigned int delay)
 {
-	struct cpu_dbs_info *cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
-
-	mod_delayed_work_on(cpu, system_wq, &cdbs->dwork, delay);
-}
-
-void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
-		unsigned int delay, bool all_cpus)
-{
-	int i;
+	struct dbs_data *dbs_data = policy->governor_data;
+	struct cpu_dbs_info *cdbs;
+	int cpu;
 
-	if (!all_cpus) {
-		/*
-		 * Use raw_smp_processor_id() to avoid preemptible warnings.
-		 * We know that this is only called with all_cpus == false from
-		 * works that have been queued with *_work_on() functions and
-		 * those works are canceled during CPU_DOWN_PREPARE so they
-		 * can't possibly run on any other CPU.
-		 */
-		__gov_queue_work(raw_smp_processor_id(), dbs_data, delay);
-	} else {
-		for_each_cpu(i, policy->cpus)
-			__gov_queue_work(i, dbs_data, delay);
+	for_each_cpu(cpu, policy->cpus) {
+		cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
+		cdbs->timer.expires = jiffies + delay;
+		add_timer_on(&cdbs->timer, cpu);
 	}
 }
-EXPORT_SYMBOL_GPL(gov_queue_work);
+EXPORT_SYMBOL_GPL(gov_add_timers);
 
-static inline void gov_cancel_work(struct dbs_data *dbs_data,
-		struct cpufreq_policy *policy)
+static inline void gov_cancel_timers(struct cpufreq_policy *policy)
 {
+	struct dbs_data *dbs_data = policy->governor_data;
 	struct cpu_dbs_info *cdbs;
 	int i;
 
 	for_each_cpu(i, policy->cpus) {
 		cdbs = dbs_data->cdata->get_cpu_cdbs(i);
-		cancel_delayed_work_sync(&cdbs->dwork);
+		del_timer_sync(&cdbs->timer);
 	}
 }
 
+void gov_cancel_work(struct cpu_common_dbs_info *shared)
+{
+	/* Tell dbs_timer_handler() to skip queuing up work items. */
+	atomic_inc(&shared->skip_work);
+	/*
+	 * If dbs_timer_handler() is already running, it may not notice the
+	 * incremented skip_work, so wait for it to complete to prevent its work
+	 * item from being queued up after the cancel_work_sync() below.
+	 */
+	gov_cancel_timers(shared->policy);
+	/*
+	 * In case dbs_timer_handler() managed to run and spawn a work item
+	 * before the timers have been canceled, wait for that work item to
+	 * complete and then cancel all of the timers set up by it.  If
+	 * dbs_timer_handler() runs again at that point, it will see the
+	 * positive value of skip_work and won't spawn any more work items.
+	 */
+	cancel_work_sync(&shared->work);
+	gov_cancel_timers(shared->policy);
+	atomic_set(&shared->skip_work, 0);
+}
+EXPORT_SYMBOL_GPL(gov_cancel_work);
+
 /* Will return if we need to evaluate cpu load again or not */
 static bool need_load_eval(struct cpu_common_dbs_info *shared,
 			   unsigned int sampling_rate)
@@ -217,29 +228,21 @@ static bool need_load_eval(struct cpu_common_dbs_info *shared,
 	return true;
 }
 
-static void dbs_timer(struct work_struct *work)
+static void dbs_work_handler(struct work_struct *work)
 {
-	struct cpu_dbs_info *cdbs = container_of(work, struct cpu_dbs_info,
-						 dwork.work);
-	struct cpu_common_dbs_info *shared = cdbs->shared;
+	struct cpu_common_dbs_info *shared = container_of(work, struct
+					cpu_common_dbs_info, work);
 	struct cpufreq_policy *policy;
 	struct dbs_data *dbs_data;
 	unsigned int sampling_rate, delay;
-	bool modify_all = true;
-
-	mutex_lock(&shared->timer_mutex);
+	bool eval_load;
 
 	policy = shared->policy;
-
-	/*
-	 * Governor might already be disabled and there is no point continuing
-	 * with the work-handler.
-	 */
-	if (!policy)
-		goto unlock;
-
 	dbs_data = policy->governor_data;
 
+	/* Kill all timers */
+	gov_cancel_timers(policy);
+
 	if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
 		struct cs_dbs_tuners *cs_tuners = dbs_data->tuners;
 
@@ -250,14 +253,37 @@ static void dbs_timer(struct work_struct *work)
 		sampling_rate = od_tuners->sampling_rate;
 	}
 
-	if (!need_load_eval(cdbs->shared, sampling_rate))
-		modify_all = false;
-
-	delay = dbs_data->cdata->gov_dbs_timer(cdbs, dbs_data, modify_all);
-	gov_queue_work(dbs_data, policy, delay, modify_all);
+	eval_load = need_load_eval(shared, sampling_rate);
 
-unlock:
+	/*
+	 * Make sure cpufreq_governor_limits() isn't evaluating load in
+	 * parallel.
+	 */
+	mutex_lock(&shared->timer_mutex);
+	delay = dbs_data->cdata->gov_dbs_timer(policy, eval_load);
 	mutex_unlock(&shared->timer_mutex);
+
+	atomic_dec(&shared->skip_work);
+
+	gov_add_timers(policy, delay);
+}
+
+static void dbs_timer_handler(unsigned long data)
+{
+	struct cpu_dbs_info *cdbs = (struct cpu_dbs_info *)data;
+	struct cpu_common_dbs_info *shared = cdbs->shared;
+
+	/*
+	 * Timer handler may not be allowed to queue the work at the moment,
+	 * because:
+	 * - Another timer handler has done that
+	 * - We are stopping the governor
+	 * - Or we are updating the sampling rate of the ondemand governor
+	 */
+	if (atomic_inc_return(&shared->skip_work) > 1)
+		atomic_dec(&shared->skip_work);
+	else
+		queue_work(system_wq, &shared->work);
 }
 
 static void set_sampling_rate(struct dbs_data *dbs_data,
@@ -287,6 +313,9 @@ static int alloc_common_dbs_info(struct cpufreq_policy *policy,
 	for_each_cpu(j, policy->related_cpus)
 		cdata->get_cpu_cdbs(j)->shared = shared;
 
+	mutex_init(&shared->timer_mutex);
+	atomic_set(&shared->skip_work, 0);
+	INIT_WORK(&shared->work, dbs_work_handler);
 	return 0;
 }
 
@@ -297,6 +326,8 @@ static void free_common_dbs_info(struct cpufreq_policy *policy,
 	struct cpu_common_dbs_info *shared = cdbs->shared;
 	int j;
 
+	mutex_destroy(&shared->timer_mutex);
+
 	for_each_cpu(j, policy->cpus)
 		cdata->get_cpu_cdbs(j)->shared = NULL;
 
@@ -433,7 +464,6 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy,
 
 	shared->policy = policy;
 	shared->time_stamp = ktime_get();
-	mutex_init(&shared->timer_mutex);
 
 	for_each_cpu(j, policy->cpus) {
 		struct cpu_dbs_info *j_cdbs = cdata->get_cpu_cdbs(j);
@@ -450,7 +480,9 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy,
 		if (ignore_nice)
 			j_cdbs->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
 
-		INIT_DEFERRABLE_WORK(&j_cdbs->dwork, dbs_timer);
+		__setup_timer(&j_cdbs->timer, dbs_timer_handler,
+			      (unsigned long)j_cdbs,
+			      TIMER_DEFERRABLE | TIMER_IRQSAFE);
 	}
 
 	if (cdata->governor == GOV_CONSERVATIVE) {
@@ -468,8 +500,7 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy,
 		od_ops->powersave_bias_init_cpu(cpu);
 	}
 
-	gov_queue_work(dbs_data, policy, delay_for_sampling_rate(sampling_rate),
-		       true);
+	gov_add_timers(policy, delay_for_sampling_rate(sampling_rate));
 	return 0;
 }
 
@@ -483,18 +514,9 @@ static int cpufreq_governor_stop(struct cpufreq_policy *policy,
 	if (!shared || !shared->policy)
 		return -EBUSY;
 
-	/*
-	 * Work-handler must see this updated, as it should not proceed any
-	 * further after governor is disabled. And so timer_mutex is taken while
-	 * updating this value.
-	 */
-	mutex_lock(&shared->timer_mutex);
+	gov_cancel_work(shared);
 	shared->policy = NULL;
-	mutex_unlock(&shared->timer_mutex);
-
-	gov_cancel_work(dbs_data, policy);
 
-	mutex_destroy(&shared->timer_mutex);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 5621bb03e874..91e767a058a7 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -17,6 +17,7 @@
 #ifndef _CPUFREQ_GOVERNOR_H
 #define _CPUFREQ_GOVERNOR_H
 
+#include <linux/atomic.h>
 #include <linux/cpufreq.h>
 #include <linux/kernel_stat.h>
 #include <linux/module.h>
@@ -132,12 +133,14 @@ static void *get_cpu_dbs_info_s(int cpu)				\
 struct cpu_common_dbs_info {
 	struct cpufreq_policy *policy;
 	/*
-	 * percpu mutex that serializes governor limit change with dbs_timer
-	 * invocation. We do not want dbs_timer to run when user is changing
-	 * the governor or limits.
+	 * Per policy mutex that serializes load evaluation from limit-change
+	 * and work-handler.
 	 */
 	struct mutex timer_mutex;
+
 	ktime_t time_stamp;
+	atomic_t skip_work;
+	struct work_struct work;
 };
 
 /* Per cpu structures */
@@ -152,7 +155,7 @@ struct cpu_dbs_info {
 	 * wake-up from idle.
 	 */
 	unsigned int prev_load;
-	struct delayed_work dwork;
+	struct timer_list timer;
 	struct cpu_common_dbs_info *shared;
 };
 
@@ -209,8 +212,7 @@ struct common_dbs_data {
 
 	struct cpu_dbs_info *(*get_cpu_cdbs)(int cpu);
 	void *(*get_cpu_dbs_info_s)(int cpu);
-	unsigned int (*gov_dbs_timer)(struct cpu_dbs_info *cdbs,
-				      struct dbs_data *dbs_data,
+	unsigned int (*gov_dbs_timer)(struct cpufreq_policy *policy,
 				      bool modify_all);
 	void (*gov_check_cpu)(int cpu, unsigned int load);
 	int (*init)(struct dbs_data *dbs_data, bool notify);
@@ -269,11 +271,11 @@ static ssize_t show_sampling_rate_min_gov_pol				\
 
 extern struct mutex cpufreq_governor_lock;
 
+void gov_add_timers(struct cpufreq_policy *policy, unsigned int delay);
+void gov_cancel_work(struct cpu_common_dbs_info *shared);
 void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
 int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 		struct common_dbs_data *cdata, unsigned int event);
-void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
-		unsigned int delay, bool all_cpus);
 void od_register_powersave_bias_handler(unsigned int (*f)
 		(struct cpufreq_policy *, unsigned int, unsigned int),
 		unsigned int powersave_bias);
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 03ac6ce54042..eae51070c034 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -191,10 +191,9 @@ static void od_check_cpu(int cpu, unsigned int load)
 	}
 }
 
-static unsigned int od_dbs_timer(struct cpu_dbs_info *cdbs,
-				 struct dbs_data *dbs_data, bool modify_all)
+static unsigned int od_dbs_timer(struct cpufreq_policy *policy, bool modify_all)
 {
-	struct cpufreq_policy *policy = cdbs->shared->policy;
+	struct dbs_data *dbs_data = policy->governor_data;
 	unsigned int cpu = policy->cpu;
 	struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
 			cpu);
@@ -247,40 +246,66 @@ static void update_sampling_rate(struct dbs_data *dbs_data,
 		unsigned int new_rate)
 {
 	struct od_dbs_tuners *od_tuners = dbs_data->tuners;
+	struct cpumask cpumask;
 	int cpu;
 
 	od_tuners->sampling_rate = new_rate = max(new_rate,
 			dbs_data->min_sampling_rate);
 
-	for_each_online_cpu(cpu) {
+	/*
+	 * Lock governor so that governor start/stop can't execute in parallel.
+	 */
+	mutex_lock(&od_dbs_cdata.mutex);
+
+	cpumask_copy(&cpumask, cpu_online_mask);
+
+	for_each_cpu(cpu, &cpumask) {
 		struct cpufreq_policy *policy;
 		struct od_cpu_dbs_info_s *dbs_info;
+		struct cpu_dbs_info *cdbs;
+		struct cpu_common_dbs_info *shared;
 		unsigned long next_sampling, appointed_at;
 
-		policy = cpufreq_cpu_get(cpu);
-		if (!policy)
-			continue;
-		if (policy->governor != &cpufreq_gov_ondemand) {
-			cpufreq_cpu_put(policy);
-			continue;
-		}
 		dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
-		cpufreq_cpu_put(policy);
+		cdbs = &dbs_info->cdbs;
+		shared = cdbs->shared;
 
-		if (!delayed_work_pending(&dbs_info->cdbs.dwork))
+		/*
+		 * A valid shared and shared->policy means governor hasn't
+		 * stopped or exited yet.
+		 */
+		if (!shared || !shared->policy)
+			continue;
+
+		policy = shared->policy;
+
+		/* clear all CPUs of this policy */
+		cpumask_andnot(&cpumask, &cpumask, policy->cpus);
+
+		/*
+		 * Update sampling rate for CPUs whose policy is governed by
+		 * dbs_data. In case of governor_per_policy, only a single
+		 * policy will be governed by dbs_data, otherwise there can be
+		 * multiple policies that are governed by the same dbs_data.
+		 */
+		if (dbs_data != policy->governor_data)
 			continue;
 
+		/*
+		 * Checking this for any CPU should be fine, timers for all of
+		 * them are scheduled together.
+		 */
 		next_sampling = jiffies + usecs_to_jiffies(new_rate);
-		appointed_at = dbs_info->cdbs.dwork.timer.expires;
+		appointed_at = dbs_info->cdbs.timer.expires;
 
 		if (time_before(next_sampling, appointed_at)) {
-			cancel_delayed_work_sync(&dbs_info->cdbs.dwork);
-
-			gov_queue_work(dbs_data, policy,
-				       usecs_to_jiffies(new_rate), true);
+			gov_cancel_work(shared);
+			gov_add_timers(policy, usecs_to_jiffies(new_rate));
 
 		}
 	}
+
+	mutex_unlock(&od_dbs_cdata.mutex);
 }
 
 static ssize_t store_sampling_rate(struct dbs_data *dbs_data, const char *buf,
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 98fb8821382d..cd83d477e32d 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -66,6 +66,7 @@ static inline int ceiling_fp(int32_t x)
 
 struct sample {
 	int32_t core_pct_busy;
+	int32_t busy_scaled;
 	u64 aperf;
 	u64 mperf;
 	u64 tsc;
@@ -112,6 +113,7 @@ struct cpudata {
 	u64	prev_aperf;
 	u64	prev_mperf;
 	u64	prev_tsc;
+	u64	prev_cummulative_iowait;
 	struct sample sample;
 };
 
@@ -133,6 +135,7 @@ struct pstate_funcs {
 	int (*get_scaling)(void);
 	void (*set)(struct cpudata*, int pstate);
 	void (*get_vid)(struct cpudata *);
+	int32_t (*get_target_pstate)(struct cpudata *);
 };
 
 struct cpu_defaults {
@@ -140,6 +143,9 @@ struct cpu_defaults {
 	struct pstate_funcs funcs;
 };
 
+static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu);
+static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu);
+
 static struct pstate_adjust_policy pid_params;
 static struct pstate_funcs pstate_funcs;
 static int hwp_active;
@@ -738,6 +744,7 @@ static struct cpu_defaults core_params = {
 		.get_turbo = core_get_turbo_pstate,
 		.get_scaling = core_get_scaling,
 		.set = core_set_pstate,
+		.get_target_pstate = get_target_pstate_use_performance,
 	},
 };
 
@@ -758,6 +765,7 @@ static struct cpu_defaults silvermont_params = {
 		.set = atom_set_pstate,
 		.get_scaling = silvermont_get_scaling,
 		.get_vid = atom_get_vid,
+		.get_target_pstate = get_target_pstate_use_cpu_load,
 	},
 };
 
@@ -778,6 +786,7 @@ static struct cpu_defaults airmont_params = {
 		.set = atom_set_pstate,
 		.get_scaling = airmont_get_scaling,
 		.get_vid = atom_get_vid,
+		.get_target_pstate = get_target_pstate_use_cpu_load,
 	},
 };
 
@@ -797,6 +806,7 @@ static struct cpu_defaults knl_params = {
 		.get_turbo = knl_get_turbo_pstate,
 		.get_scaling = core_get_scaling,
 		.set = core_set_pstate,
+		.get_target_pstate = get_target_pstate_use_performance,
 	},
 };
 
@@ -882,12 +892,11 @@ static inline void intel_pstate_sample(struct cpudata *cpu)
 	local_irq_save(flags);
 	rdmsrl(MSR_IA32_APERF, aperf);
 	rdmsrl(MSR_IA32_MPERF, mperf);
-	if (cpu->prev_mperf == mperf) {
+	tsc = rdtsc();
+	if ((cpu->prev_mperf == mperf) || (cpu->prev_tsc == tsc)) {
 		local_irq_restore(flags);
 		return;
 	}
-
-	tsc = rdtsc();
 	local_irq_restore(flags);
 
 	cpu->last_sample_time = cpu->sample.time;
@@ -922,7 +931,43 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu)
 	mod_timer_pinned(&cpu->timer, jiffies + delay);
 }
 
-static inline int32_t intel_pstate_get_scaled_busy(struct cpudata *cpu)
+static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu)
+{
+	struct sample *sample = &cpu->sample;
+	u64 cummulative_iowait, delta_iowait_us;
+	u64 delta_iowait_mperf;
+	u64 mperf, now;
+	int32_t cpu_load;
+
+	cummulative_iowait = get_cpu_iowait_time_us(cpu->cpu, &now);
+
+	/*
+	 * Convert iowait time into number of IO cycles spent at max_freq.
+	 * IO is considered as busy only for the cpu_load algorithm. For
+	 * performance this is not needed since we always try to reach the
+	 * maximum P-State, so we are already boosting the IOs.
+	 */
+	delta_iowait_us = cummulative_iowait - cpu->prev_cummulative_iowait;
+	delta_iowait_mperf = div64_u64(delta_iowait_us * cpu->pstate.scaling *
+		cpu->pstate.max_pstate, MSEC_PER_SEC);
+
+	mperf = cpu->sample.mperf + delta_iowait_mperf;
+	cpu->prev_cummulative_iowait = cummulative_iowait;
+
+
+	/*
+	 * The load can be estimated as the ratio of the mperf counter
+	 * running at a constant frequency during active periods
+	 * (C0) and the time stamp counter running at the same frequency
+	 * also during C-states.
+	 */
+	cpu_load = div64_u64(int_tofp(100) * mperf, sample->tsc);
+	cpu->sample.busy_scaled = cpu_load;
+
+	return cpu->pstate.current_pstate - pid_calc(&cpu->pid, cpu_load);
+}
+
+static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
 {
 	int32_t core_busy, max_pstate, current_pstate, sample_ratio;
 	s64 duration_us;
@@ -960,30 +1005,24 @@ static inline int32_t intel_pstate_get_scaled_busy(struct cpudata *cpu)
 		core_busy = mul_fp(core_busy, sample_ratio);
 	}
 
-	return core_busy;
+	cpu->sample.busy_scaled = core_busy;
+	return cpu->pstate.current_pstate - pid_calc(&cpu->pid, core_busy);
 }
 
 static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
 {
-	int32_t busy_scaled;
-	struct _pid *pid;
-	signed int ctl;
-	int from;
+	int from, target_pstate;
 	struct sample *sample;
 
 	from = cpu->pstate.current_pstate;
 
-	pid = &cpu->pid;
-	busy_scaled = intel_pstate_get_scaled_busy(cpu);
+	target_pstate = pstate_funcs.get_target_pstate(cpu);
 
-	ctl = pid_calc(pid, busy_scaled);
-
-	/* Negative values of ctl increase the pstate and vice versa */
-	intel_pstate_set_pstate(cpu, cpu->pstate.current_pstate - ctl, true);
+	intel_pstate_set_pstate(cpu, target_pstate, true);
 
 	sample = &cpu->sample;
 	trace_pstate_sample(fp_toint(sample->core_pct_busy),
-		fp_toint(busy_scaled),
+		fp_toint(sample->busy_scaled),
 		from,
 		cpu->pstate.current_pstate,
 		sample->mperf,
@@ -1237,6 +1276,8 @@ static void copy_cpu_funcs(struct pstate_funcs *funcs)
 	pstate_funcs.get_scaling = funcs->get_scaling;
 	pstate_funcs.set       = funcs->set;
 	pstate_funcs.get_vid   = funcs->get_vid;
+	pstate_funcs.get_target_pstate = funcs->get_target_pstate;
+
 }
 
 #if IS_ENABLED(CONFIG_ACPI)
diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c
index 83001dc5b646..1efba340456d 100644
--- a/drivers/cpufreq/mt8173-cpufreq.c
+++ b/drivers/cpufreq/mt8173-cpufreq.c
@@ -41,16 +41,35 @@
  * the original PLL becomes stable at target frequency.
  */
 struct mtk_cpu_dvfs_info {
+	struct cpumask cpus;
 	struct device *cpu_dev;
 	struct regulator *proc_reg;
 	struct regulator *sram_reg;
 	struct clk *cpu_clk;
 	struct clk *inter_clk;
 	struct thermal_cooling_device *cdev;
+	struct list_head list_head;
 	int intermediate_voltage;
 	bool need_voltage_tracking;
 };
 
+static LIST_HEAD(dvfs_info_list);
+
+static struct mtk_cpu_dvfs_info *mtk_cpu_dvfs_info_lookup(int cpu)
+{
+	struct mtk_cpu_dvfs_info *info;
+	struct list_head *list;
+
+	list_for_each(list, &dvfs_info_list) {
+		info = list_entry(list, struct mtk_cpu_dvfs_info, list_head);
+
+		if (cpumask_test_cpu(cpu, &info->cpus))
+			return info;
+	}
+
+	return NULL;
+}
+
 static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,
 					int new_vproc)
 {
@@ -59,7 +78,10 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,
 	int old_vproc, old_vsram, new_vsram, vsram, vproc, ret;
 
 	old_vproc = regulator_get_voltage(proc_reg);
-	old_vsram = regulator_get_voltage(sram_reg);
+	if (old_vproc < 0) {
+		pr_err("%s: invalid Vproc value: %d\n", __func__, old_vproc);
+		return old_vproc;
+	}
 	/* Vsram should not exceed the maximum allowed voltage of SoC. */
 	new_vsram = min(new_vproc + MIN_VOLT_SHIFT, MAX_VOLT_LIMIT);
 
@@ -72,7 +94,17 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,
 		 */
 		do {
 			old_vsram = regulator_get_voltage(sram_reg);
+			if (old_vsram < 0) {
+				pr_err("%s: invalid Vsram value: %d\n",
+				       __func__, old_vsram);
+				return old_vsram;
+			}
 			old_vproc = regulator_get_voltage(proc_reg);
+			if (old_vproc < 0) {
+				pr_err("%s: invalid Vproc value: %d\n",
+				       __func__, old_vproc);
+				return old_vproc;
+			}
 
 			vsram = min(new_vsram, old_vproc + MAX_VOLT_SHIFT);
 
@@ -117,7 +149,17 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,
 		 */
 		do {
 			old_vproc = regulator_get_voltage(proc_reg);
+			if (old_vproc < 0) {
+				pr_err("%s: invalid Vproc value: %d\n",
+				       __func__, old_vproc);
+				return old_vproc;
+			}
 			old_vsram = regulator_get_voltage(sram_reg);
+			if (old_vsram < 0) {
+				pr_err("%s: invalid Vsram value: %d\n",
+				       __func__, old_vsram);
+				return old_vsram;
+			}
 
 			vproc = max(new_vproc, old_vsram - MAX_VOLT_SHIFT);
 			ret = regulator_set_voltage(proc_reg, vproc,
@@ -185,6 +227,10 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy,
 
 	old_freq_hz = clk_get_rate(cpu_clk);
 	old_vproc = regulator_get_voltage(info->proc_reg);
+	if (old_vproc < 0) {
+		pr_err("%s: invalid Vproc value: %d\n", __func__, old_vproc);
+		return old_vproc;
+	}
 
 	freq_hz = freq_table[index].frequency * 1000;
 
@@ -344,7 +390,15 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
 	/* Both presence and absence of sram regulator are valid cases. */
 	sram_reg = regulator_get_exclusive(cpu_dev, "sram");
 
-	ret = dev_pm_opp_of_add_table(cpu_dev);
+	/* Get OPP-sharing information from "operating-points-v2" bindings */
+	ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, &info->cpus);
+	if (ret) {
+		pr_err("failed to get OPP-sharing information for cpu%d\n",
+		       cpu);
+		goto out_free_resources;
+	}
+
+	ret = dev_pm_opp_of_cpumask_add_table(&info->cpus);
 	if (ret) {
 		pr_warn("no OPP table for cpu%d\n", cpu);
 		goto out_free_resources;
@@ -378,7 +432,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
 	return 0;
 
 out_free_opp_table:
-	dev_pm_opp_of_remove_table(cpu_dev);
+	dev_pm_opp_of_cpumask_remove_table(&info->cpus);
 
 out_free_resources:
 	if (!IS_ERR(proc_reg))
@@ -404,7 +458,7 @@ static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info)
 	if (!IS_ERR(info->inter_clk))
 		clk_put(info->inter_clk);
 
-	dev_pm_opp_of_remove_table(info->cpu_dev);
+	dev_pm_opp_of_cpumask_remove_table(&info->cpus);
 }
 
 static int mtk_cpufreq_init(struct cpufreq_policy *policy)
@@ -413,22 +467,18 @@ static int mtk_cpufreq_init(struct cpufreq_policy *policy)
 	struct cpufreq_frequency_table *freq_table;
 	int ret;
 
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-
-	ret = mtk_cpu_dvfs_info_init(info, policy->cpu);
-	if (ret) {
-		pr_err("%s failed to initialize dvfs info for cpu%d\n",
-		       __func__, policy->cpu);
-		goto out_free_dvfs_info;
+	info = mtk_cpu_dvfs_info_lookup(policy->cpu);
+	if (!info) {
+		pr_err("dvfs info for cpu%d is not initialized.\n",
+		       policy->cpu);
+		return -EINVAL;
 	}
 
 	ret = dev_pm_opp_init_cpufreq_table(info->cpu_dev, &freq_table);
 	if (ret) {
 		pr_err("failed to init cpufreq table for cpu%d: %d\n",
 		       policy->cpu, ret);
-		goto out_release_dvfs_info;
+		return ret;
 	}
 
 	ret = cpufreq_table_validate_and_show(policy, freq_table);
@@ -437,8 +487,7 @@ static int mtk_cpufreq_init(struct cpufreq_policy *policy)
 		goto out_free_cpufreq_table;
 	}
 
-	/* CPUs in the same cluster share a clock and power domain. */
-	cpumask_copy(policy->cpus, &cpu_topology[policy->cpu].core_sibling);
+	cpumask_copy(policy->cpus, &info->cpus);
 	policy->driver_data = info;
 	policy->clk = info->cpu_clk;
 
@@ -446,13 +495,6 @@ static int mtk_cpufreq_init(struct cpufreq_policy *policy)
 
 out_free_cpufreq_table:
 	dev_pm_opp_free_cpufreq_table(info->cpu_dev, &freq_table);
-
-out_release_dvfs_info:
-	mtk_cpu_dvfs_info_release(info);
-
-out_free_dvfs_info:
-	kfree(info);
-
 	return ret;
 }
 
@@ -462,14 +504,13 @@ static int mtk_cpufreq_exit(struct cpufreq_policy *policy)
 
 	cpufreq_cooling_unregister(info->cdev);
 	dev_pm_opp_free_cpufreq_table(info->cpu_dev, &policy->freq_table);
-	mtk_cpu_dvfs_info_release(info);
-	kfree(info);
 
 	return 0;
 }
 
 static struct cpufreq_driver mt8173_cpufreq_driver = {
-	.flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK,
+	.flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK |
+		 CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
 	.verify = cpufreq_generic_frequency_table_verify,
 	.target_index = mtk_cpufreq_set_target,
 	.get = cpufreq_generic_get,
@@ -482,11 +523,47 @@ static struct cpufreq_driver mt8173_cpufreq_driver = {
 
 static int mt8173_cpufreq_probe(struct platform_device *pdev)
 {
-	int ret;
+	struct mtk_cpu_dvfs_info *info;
+	struct list_head *list, *tmp;
+	int cpu, ret;
+
+	for_each_possible_cpu(cpu) {
+		info = mtk_cpu_dvfs_info_lookup(cpu);
+		if (info)
+			continue;
+
+		info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+		if (!info) {
+			ret = -ENOMEM;
+			goto release_dvfs_info_list;
+		}
+
+		ret = mtk_cpu_dvfs_info_init(info, cpu);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"failed to initialize dvfs info for cpu%d\n",
+				cpu);
+			goto release_dvfs_info_list;
+		}
+
+		list_add(&info->list_head, &dvfs_info_list);
+	}
 
 	ret = cpufreq_register_driver(&mt8173_cpufreq_driver);
-	if (ret)
-		pr_err("failed to register mtk cpufreq driver\n");
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register mtk cpufreq driver\n");
+		goto release_dvfs_info_list;
+	}
+
+	return 0;
+
+release_dvfs_info_list:
+	list_for_each_safe(list, tmp, &dvfs_info_list) {
+		info = list_entry(list, struct mtk_cpu_dvfs_info, list_head);
+
+		mtk_cpu_dvfs_info_release(info);
+		list_del(list);
+	}
 
 	return ret;
 }
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 2a0d58959acf..808a320e9d5d 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -555,6 +555,8 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->min = policy->cpuinfo.min_freq =
 		ioread32(&pcch_hdr->minimum_frequency) * 1000;
 
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+
 	pr_debug("init: policy->max is %d, policy->min is %d\n",
 		policy->max, policy->min);
 out:
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index cb501386eb6e..547890fd9572 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -586,7 +586,7 @@ static int __init powernv_cpufreq_init(void)
 	int rc = 0;
 
 	/* Don't probe on pseries (guest) platforms */
-	if (!firmware_has_feature(FW_FEATURE_OPALv3))
+	if (!firmware_has_feature(FW_FEATURE_OPAL))
 		return -ENODEV;
 
 	/* Discover pstates from device tree and init */
diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c
index 358f0752c31e..b23e525a7af3 100644
--- a/drivers/cpufreq/qoriq-cpufreq.c
+++ b/drivers/cpufreq/qoriq-cpufreq.c
@@ -12,6 +12,7 @@
 
 #include <linux/clk.h>
 #include <linux/cpufreq.h>
+#include <linux/cpu_cooling.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -33,6 +34,7 @@
 struct cpu_data {
 	struct clk **pclk;
 	struct cpufreq_frequency_table *table;
+	struct thermal_cooling_device *cdev;
 };
 
 /**
@@ -321,6 +323,27 @@ static int qoriq_cpufreq_target(struct cpufreq_policy *policy,
 	return clk_set_parent(policy->clk, parent);
 }
 
+
+static void qoriq_cpufreq_ready(struct cpufreq_policy *policy)
+{
+	struct cpu_data *cpud = policy->driver_data;
+	struct device_node *np = of_get_cpu_node(policy->cpu, NULL);
+
+	if (of_find_property(np, "#cooling-cells", NULL)) {
+		cpud->cdev = of_cpufreq_cooling_register(np,
+							 policy->related_cpus);
+
+		if (IS_ERR(cpud->cdev)) {
+			pr_err("Failed to register cooling device cpu%d: %ld\n",
+					policy->cpu, PTR_ERR(cpud->cdev));
+
+			cpud->cdev = NULL;
+		}
+	}
+
+	of_node_put(np);
+}
+
 static struct cpufreq_driver qoriq_cpufreq_driver = {
 	.name		= "qoriq_cpufreq",
 	.flags		= CPUFREQ_CONST_LOOPS,
@@ -329,6 +352,7 @@ static struct cpufreq_driver qoriq_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
 	.target_index	= qoriq_cpufreq_target,
 	.get		= cpufreq_generic_get,
+	.ready		= qoriq_cpufreq_ready,
 	.attr		= cpufreq_generic_attr,
 };
 
diff --git a/drivers/cpufreq/sti-cpufreq.c b/drivers/cpufreq/sti-cpufreq.c
new file mode 100644
index 000000000000..a9c659f58974
--- /dev/null
+++ b/drivers/cpufreq/sti-cpufreq.c
@@ -0,0 +1,294 @@
+/*
+ * Match running platform with pre-defined OPP values for CPUFreq
+ *
+ * Author: Ajit Pal Singh <ajitpal.singh@st.com>
+ *         Lee Jones <lee.jones@linaro.org>
+ *
+ * Copyright (C) 2015 STMicroelectronics (R&D) Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the version 2 of the GNU General Public License as
+ * published by the Free Software Foundation
+ */
+
+#include <linux/cpu.h>
+#include <linux/io.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/pm_opp.h>
+#include <linux/regmap.h>
+
+#define VERSION_ELEMENTS	3
+#define MAX_PCODE_NAME_LEN	7
+
+#define VERSION_SHIFT		28
+#define HW_INFO_INDEX		1
+#define MAJOR_ID_INDEX		1
+#define MINOR_ID_INDEX		2
+
+/*
+ * Only match on "suitable for ALL versions" entries
+ *
+ * This will be used with the BIT() macro.  It sets the
+ * top bit of a 32bit value and is equal to 0x80000000.
+ */
+#define DEFAULT_VERSION		31
+
+enum {
+	PCODE = 0,
+	SUBSTRATE,
+	DVFS_MAX_REGFIELDS,
+};
+
+/**
+ * ST CPUFreq Driver Data
+ *
+ * @cpu_node		CPU's OF node
+ * @syscfg_eng		Engineering Syscon register map
+ * @regmap		Syscon register map
+ */
+static struct sti_cpufreq_ddata {
+	struct device *cpu;
+	struct regmap *syscfg_eng;
+	struct regmap *syscfg;
+} ddata;
+
+static int sti_cpufreq_fetch_major(void) {
+	struct device_node *np = ddata.cpu->of_node;
+	struct device *dev = ddata.cpu;
+	unsigned int major_offset;
+	unsigned int socid;
+	int ret;
+
+	ret = of_property_read_u32_index(np, "st,syscfg",
+					 MAJOR_ID_INDEX, &major_offset);
+	if (ret) {
+		dev_err(dev, "No major number offset provided in %s [%d]\n",
+			np->full_name, ret);
+		return ret;
+	}
+
+	ret = regmap_read(ddata.syscfg, major_offset, &socid);
+	if (ret) {
+		dev_err(dev, "Failed to read major number from syscon [%d]\n",
+			ret);
+		return ret;
+	}
+
+	return ((socid >> VERSION_SHIFT) & 0xf) + 1;
+}
+
+static int sti_cpufreq_fetch_minor(void)
+{
+	struct device *dev = ddata.cpu;
+	struct device_node *np = dev->of_node;
+	unsigned int minor_offset;
+	unsigned int minid;
+	int ret;
+
+	ret = of_property_read_u32_index(np, "st,syscfg-eng",
+					 MINOR_ID_INDEX, &minor_offset);
+	if (ret) {
+		dev_err(dev,
+			"No minor number offset provided %s [%d]\n",
+			np->full_name, ret);
+		return ret;
+	}
+
+	ret = regmap_read(ddata.syscfg_eng, minor_offset, &minid);
+	if (ret) {
+		dev_err(dev,
+			"Failed to read the minor number from syscon [%d]\n",
+			ret);
+		return ret;
+	}
+
+	return minid & 0xf;
+}
+
+static int sti_cpufreq_fetch_regmap_field(const struct reg_field *reg_fields,
+					  int hw_info_offset, int field)
+{
+	struct regmap_field *regmap_field;
+	struct reg_field reg_field = reg_fields[field];
+	struct device *dev = ddata.cpu;
+	unsigned int value;
+	int ret;
+
+	reg_field.reg = hw_info_offset;
+	regmap_field = devm_regmap_field_alloc(dev,
+					       ddata.syscfg_eng,
+					       reg_field);
+	if (IS_ERR(regmap_field)) {
+		dev_err(dev, "Failed to allocate reg field\n");
+		return PTR_ERR(regmap_field);
+	}
+
+	ret = regmap_field_read(regmap_field, &value);
+	if (ret) {
+		dev_err(dev, "Failed to read %s code\n",
+			field ? "SUBSTRATE" : "PCODE");
+		return ret;
+	}
+
+	return value;
+}
+
+static const struct reg_field sti_stih407_dvfs_regfields[DVFS_MAX_REGFIELDS] = {
+	[PCODE]		= REG_FIELD(0, 16, 19),
+	[SUBSTRATE]	= REG_FIELD(0, 0, 2),
+};
+
+static const struct reg_field *sti_cpufreq_match(void)
+{
+	if (of_machine_is_compatible("st,stih407") ||
+	    of_machine_is_compatible("st,stih410"))
+		return sti_stih407_dvfs_regfields;
+
+	return NULL;
+}
+
+static int sti_cpufreq_set_opp_info(void)
+{
+	struct device *dev = ddata.cpu;
+	struct device_node *np = dev->of_node;
+	const struct reg_field *reg_fields;
+	unsigned int hw_info_offset;
+	unsigned int version[VERSION_ELEMENTS];
+	int pcode, substrate, major, minor;
+	int ret;
+	char name[MAX_PCODE_NAME_LEN];
+
+	reg_fields = sti_cpufreq_match();
+	if (!reg_fields) {
+		dev_err(dev, "This SoC doesn't support voltage scaling");
+		return -ENODEV;
+	}
+
+	ret = of_property_read_u32_index(np, "st,syscfg-eng",
+					 HW_INFO_INDEX, &hw_info_offset);
+	if (ret) {
+		dev_warn(dev, "Failed to read HW info offset from DT\n");
+		substrate = DEFAULT_VERSION;
+		pcode = 0;
+		goto use_defaults;
+	}
+
+	pcode = sti_cpufreq_fetch_regmap_field(reg_fields,
+					       hw_info_offset,
+					       PCODE);
+	if (pcode < 0) {
+		dev_warn(dev, "Failed to obtain process code\n");
+		/* Use default pcode */
+		pcode = 0;
+	}
+
+	substrate = sti_cpufreq_fetch_regmap_field(reg_fields,
+						   hw_info_offset,
+						   SUBSTRATE);
+	if (substrate) {
+		dev_warn(dev, "Failed to obtain substrate code\n");
+		/* Use default substrate */
+		substrate = DEFAULT_VERSION;
+	}
+
+use_defaults:
+	major = sti_cpufreq_fetch_major();
+	if (major < 0) {
+		dev_err(dev, "Failed to obtain major version\n");
+		/* Use default major number */
+		major = DEFAULT_VERSION;
+	}
+
+	minor = sti_cpufreq_fetch_minor();
+	if (minor < 0) {
+		dev_err(dev, "Failed to obtain minor version\n");
+		/* Use default minor number */
+		minor = DEFAULT_VERSION;
+	}
+
+	snprintf(name, MAX_PCODE_NAME_LEN, "pcode%d", pcode);
+
+	ret = dev_pm_opp_set_prop_name(dev, name);
+	if (ret) {
+		dev_err(dev, "Failed to set prop name\n");
+		return ret;
+	}
+
+	version[0] = BIT(major);
+	version[1] = BIT(minor);
+	version[2] = BIT(substrate);
+
+	ret = dev_pm_opp_set_supported_hw(dev, version, VERSION_ELEMENTS);
+	if (ret) {
+		dev_err(dev, "Failed to set supported hardware\n");
+		return ret;
+	}
+
+	dev_dbg(dev, "pcode: %d major: %d minor: %d substrate: %d\n",
+		pcode, major, minor, substrate);
+	dev_dbg(dev, "version[0]: %x version[1]: %x version[2]: %x\n",
+		version[0], version[1], version[2]);
+
+	return 0;
+}
+
+static int sti_cpufreq_fetch_syscon_regsiters(void)
+{
+	struct device *dev = ddata.cpu;
+	struct device_node *np = dev->of_node;
+
+	ddata.syscfg = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
+	if (IS_ERR(ddata.syscfg)) {
+		dev_err(dev,  "\"st,syscfg\" not supplied\n");
+		return PTR_ERR(ddata.syscfg);
+	}
+
+	ddata.syscfg_eng = syscon_regmap_lookup_by_phandle(np, "st,syscfg-eng");
+	if (IS_ERR(ddata.syscfg_eng)) {
+		dev_err(dev, "\"st,syscfg-eng\" not supplied\n");
+		return PTR_ERR(ddata.syscfg_eng);
+	}
+
+	return 0;
+}
+
+static int sti_cpufreq_init(void)
+{
+	int ret;
+
+	ddata.cpu = get_cpu_device(0);
+	if (!ddata.cpu) {
+		dev_err(ddata.cpu, "Failed to get device for CPU0\n");
+		goto skip_voltage_scaling;
+	}
+
+	if (!of_get_property(ddata.cpu->of_node, "operating-points-v2", NULL)) {
+		dev_err(ddata.cpu, "OPP-v2 not supported\n");
+		goto skip_voltage_scaling;
+	}
+
+	ret = sti_cpufreq_fetch_syscon_regsiters();
+	if (ret)
+		goto skip_voltage_scaling;
+
+	ret = sti_cpufreq_set_opp_info();
+	if (!ret)
+		goto register_cpufreq_dt;
+
+skip_voltage_scaling:
+	dev_err(ddata.cpu, "Not doing voltage scaling\n");
+
+register_cpufreq_dt:
+	platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
+
+	return 0;
+}
+module_init(sti_cpufreq_init);
+
+MODULE_DESCRIPTION("STMicroelectronics CPUFreq/OPP driver");
+MODULE_AUTHOR("Ajitpal Singh <ajitpal.singh@st.com>");
+MODULE_AUTHOR("Lee Jones <lee.jones@linaro.org>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/cpuidle/cpuidle-clps711x.c b/drivers/cpuidle/cpuidle-clps711x.c
index 18a7f7380508..66a9f231ec41 100644
--- a/drivers/cpuidle/cpuidle-clps711x.c
+++ b/drivers/cpuidle/cpuidle-clps711x.c
@@ -12,7 +12,7 @@
 #include <linux/cpuidle.h>
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 
 #define CLPS711X_CPUIDLE_NAME	"clps711x-cpuidle"
@@ -56,8 +56,4 @@ static struct platform_driver clps711x_cpuidle_driver = {
 		.name	= CLPS711X_CPUIDLE_NAME,
 	},
 };
-module_platform_driver_probe(clps711x_cpuidle_driver, clps711x_cpuidle_probe);
-
-MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
-MODULE_DESCRIPTION("CLPS711X CPU idle driver");
-MODULE_LICENSE("GPL");
+builtin_platform_driver_probe(clps711x_cpuidle_driver, clps711x_cpuidle_probe);
diff --git a/drivers/cpuidle/cpuidle-exynos.c b/drivers/cpuidle/cpuidle-exynos.c
index b5f0a9cc8185..00cd129b10a4 100644
--- a/drivers/cpuidle/cpuidle-exynos.c
+++ b/drivers/cpuidle/cpuidle-exynos.c
@@ -14,7 +14,7 @@
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/export.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/platform_data/cpuidle-exynos.h>
@@ -142,5 +142,4 @@ static struct platform_driver exynos_cpuidle_driver = {
 		.name = "exynos_cpuidle",
 	},
 };
-
-module_platform_driver(exynos_cpuidle_driver);
+builtin_platform_driver(exynos_cpuidle_driver);
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 845bafcfa792..e12dc30d8864 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -264,7 +264,7 @@ static int powernv_idle_probe(void)
 	if (cpuidle_disable != IDLE_NO_OVERRIDE)
 		return -ENODEV;
 
-	if (firmware_has_feature(FW_FEATURE_OPALv3)) {
+	if (firmware_has_feature(FW_FEATURE_OPAL)) {
 		cpuidle_state_table = powernv_states;
 		/* Device tree can indicate more idle states */
 		max_idle_state = powernv_add_idle_states();
diff --git a/drivers/cpuidle/cpuidle-ux500.c b/drivers/cpuidle/cpuidle-ux500.c
index 8bf895c0017d..7941a090bea6 100644
--- a/drivers/cpuidle/cpuidle-ux500.c
+++ b/drivers/cpuidle/cpuidle-ux500.c
@@ -9,7 +9,7 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/cpuidle.h>
 #include <linux/spinlock.h>
 #include <linux/atomic.h>
@@ -124,5 +124,4 @@ static struct platform_driver dbx500_cpuidle_plat_driver = {
 	},
 	.probe = dbx500_cpuidle_probe,
 };
-
-module_platform_driver(dbx500_cpuidle_plat_driver);
+builtin_platform_driver(dbx500_cpuidle_plat_driver);
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 22e4463d1787..7b0971d97cc3 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -330,7 +330,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 	 * We want to default to C1 (hlt), not to busy polling
 	 * unless the timer is happening really really soon.
 	 */
-	if (data->next_timer_us > 5 &&
+	if (interactivity_req > 20 &&
 	    !drv->states[CPUIDLE_DRIVER_STATE_START].disabled &&
 		dev->states_usage[CPUIDLE_DRIVER_STATE_START].disable == 0)
 		data->last_state_idx = CPUIDLE_DRIVER_STATE_START;
@@ -404,8 +404,10 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 	measured_us = cpuidle_get_last_residency(dev);
 
 	/* Deduct exit latency */
-	if (measured_us > target->exit_latency)
+	if (measured_us > 2 * target->exit_latency)
 		measured_us -= target->exit_latency;
+	else
+		measured_us /= 2;
 
 	/* Make sure our coefficients do not exceed unity */
 	if (measured_us > data->next_timer_us)
diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c
index 263af709e536..022c7ab7351a 100644
--- a/drivers/crypto/vmx/aes.c
+++ b/drivers/crypto/vmx/aes.c
@@ -83,10 +83,10 @@ static int p8_aes_setkey(struct crypto_tfm *tfm, const u8 *key,
 
 	preempt_disable();
 	pagefault_disable();
-	enable_kernel_altivec();
 	enable_kernel_vsx();
 	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
 	ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
+	disable_kernel_vsx();
 	pagefault_enable();
 	preempt_enable();
 
@@ -103,9 +103,9 @@ static void p8_aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 	} else {
 		preempt_disable();
 		pagefault_disable();
-		enable_kernel_altivec();
 		enable_kernel_vsx();
 		aes_p8_encrypt(src, dst, &ctx->enc_key);
+		disable_kernel_vsx();
 		pagefault_enable();
 		preempt_enable();
 	}
@@ -120,9 +120,9 @@ static void p8_aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 	} else {
 		preempt_disable();
 		pagefault_disable();
-		enable_kernel_altivec();
 		enable_kernel_vsx();
 		aes_p8_decrypt(src, dst, &ctx->dec_key);
+		disable_kernel_vsx();
 		pagefault_enable();
 		preempt_enable();
 	}
diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c
index 78a978613ca8..495577b6d31b 100644
--- a/drivers/crypto/vmx/aes_cbc.c
+++ b/drivers/crypto/vmx/aes_cbc.c
@@ -84,10 +84,10 @@ static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key,
 
 	preempt_disable();
 	pagefault_disable();
-	enable_kernel_altivec();
 	enable_kernel_vsx();
 	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
 	ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
+	disable_kernel_vsx();
 	pagefault_enable();
 	preempt_enable();
 
@@ -115,7 +115,6 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
 	} else {
 		preempt_disable();
 		pagefault_disable();
-		enable_kernel_altivec();
 		enable_kernel_vsx();
 
 		blkcipher_walk_init(&walk, dst, src, nbytes);
@@ -129,6 +128,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
 			ret = blkcipher_walk_done(desc, &walk, nbytes);
 		}
 
+		disable_kernel_vsx();
 		pagefault_enable();
 		preempt_enable();
 	}
@@ -156,7 +156,6 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
 	} else {
 		preempt_disable();
 		pagefault_disable();
-		enable_kernel_altivec();
 		enable_kernel_vsx();
 
 		blkcipher_walk_init(&walk, dst, src, nbytes);
@@ -170,6 +169,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
 			ret = blkcipher_walk_done(desc, &walk, nbytes);
 		}
 
+		disable_kernel_vsx();
 		pagefault_enable();
 		preempt_enable();
 	}
diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c
index 1febc4f1d9af..0a3c1b04cf3c 100644
--- a/drivers/crypto/vmx/aes_ctr.c
+++ b/drivers/crypto/vmx/aes_ctr.c
@@ -81,9 +81,9 @@ static int p8_aes_ctr_setkey(struct crypto_tfm *tfm, const u8 *key,
 	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
 
 	pagefault_disable();
-	enable_kernel_altivec();
 	enable_kernel_vsx();
 	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
+	disable_kernel_vsx();
 	pagefault_enable();
 
 	ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
@@ -100,9 +100,9 @@ static void p8_aes_ctr_final(struct p8_aes_ctr_ctx *ctx,
 	unsigned int nbytes = walk->nbytes;
 
 	pagefault_disable();
-	enable_kernel_altivec();
 	enable_kernel_vsx();
 	aes_p8_encrypt(ctrblk, keystream, &ctx->enc_key);
+	disable_kernel_vsx();
 	pagefault_enable();
 
 	crypto_xor(keystream, src, nbytes);
@@ -133,7 +133,6 @@ static int p8_aes_ctr_crypt(struct blkcipher_desc *desc,
 		ret = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
 		while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
 			pagefault_disable();
-			enable_kernel_altivec();
 			enable_kernel_vsx();
 			aes_p8_ctr32_encrypt_blocks(walk.src.virt.addr,
 						    walk.dst.virt.addr,
@@ -142,6 +141,7 @@ static int p8_aes_ctr_crypt(struct blkcipher_desc *desc,
 						    AES_BLOCK_SIZE,
 						    &ctx->enc_key,
 						    walk.iv);
+			disable_kernel_vsx();
 			pagefault_enable();
 
 			/* We need to update IV mostly for last bytes/round */
diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c
index 2183a2e77641..6c999cb01b80 100644
--- a/drivers/crypto/vmx/ghash.c
+++ b/drivers/crypto/vmx/ghash.c
@@ -118,10 +118,9 @@ static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key,
 
 	preempt_disable();
 	pagefault_disable();
-	enable_kernel_altivec();
 	enable_kernel_vsx();
-	enable_kernel_fp();
 	gcm_init_p8(ctx->htable, (const u64 *) key);
+	disable_kernel_vsx();
 	pagefault_enable();
 	preempt_enable();
 	return crypto_shash_setkey(ctx->fallback, key, keylen);
@@ -149,11 +148,10 @@ static int p8_ghash_update(struct shash_desc *desc,
 			       GHASH_DIGEST_SIZE - dctx->bytes);
 			preempt_disable();
 			pagefault_disable();
-			enable_kernel_altivec();
 			enable_kernel_vsx();
-			enable_kernel_fp();
 			gcm_ghash_p8(dctx->shash, ctx->htable,
 				     dctx->buffer, GHASH_DIGEST_SIZE);
+			disable_kernel_vsx();
 			pagefault_enable();
 			preempt_enable();
 			src += GHASH_DIGEST_SIZE - dctx->bytes;
@@ -164,10 +162,9 @@ static int p8_ghash_update(struct shash_desc *desc,
 		if (len) {
 			preempt_disable();
 			pagefault_disable();
-			enable_kernel_altivec();
 			enable_kernel_vsx();
-			enable_kernel_fp();
 			gcm_ghash_p8(dctx->shash, ctx->htable, src, len);
+			disable_kernel_vsx();
 			pagefault_enable();
 			preempt_enable();
 			src += len;
@@ -195,11 +192,10 @@ static int p8_ghash_final(struct shash_desc *desc, u8 *out)
 				dctx->buffer[i] = 0;
 			preempt_disable();
 			pagefault_disable();
-			enable_kernel_altivec();
 			enable_kernel_vsx();
-			enable_kernel_fp();
 			gcm_ghash_p8(dctx->shash, ctx->htable,
 				     dctx->buffer, GHASH_DIGEST_SIZE);
+			disable_kernel_vsx();
 			pagefault_enable();
 			preempt_enable();
 			dctx->bytes = 0;
diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c
index 819dfda88236..7afbb28d6a0f 100644
--- a/drivers/dca/dca-core.c
+++ b/drivers/dca/dca-core.c
@@ -321,7 +321,8 @@ EXPORT_SYMBOL_GPL(dca_get_tag);
  * @ops - pointer to struct of dca operation function pointers
  * @priv_size - size of extra mem to be added for provider's needs
  */
-struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size)
+struct dca_provider *alloc_dca_provider(const struct dca_ops *ops,
+					int priv_size)
 {
 	struct dca_provider *dca;
 	int alloc_size;
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index e6cd1a32025a..3a8ce67910c2 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -431,6 +431,18 @@ config STE_DMA40
 	help
 	  Support for ST-Ericsson DMA40 controller
 
+config STM32_DMA
+	bool "STMicroelectronics STM32 DMA support"
+	depends on ARCH_STM32
+	select DMA_ENGINE
+	select DMA_OF
+	select DMA_VIRTUAL_CHANNELS
+	help
+	  Enable support for the on-chip DMA controller on STMicroelectronics
+	  STM32 MCUs.
+	  If you have a board based on such a MCU and wish to use DMA say Y or M
+	  here.
+
 config S3C24XX_DMAC
 	tristate "Samsung S3C24XX DMA support"
 	depends on ARCH_S3C24XX
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index ef9c099bd2b6..2dd0a067a0ca 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_QCOM_BAM_DMA) += qcom_bam_dma.o
 obj-$(CONFIG_RENESAS_DMA) += sh/
 obj-$(CONFIG_SIRF_DMA) += sirf-dma.o
 obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o
+obj-$(CONFIG_STM32_DMA) += stm32-dma.o
 obj-$(CONFIG_S3C24XX_DMAC) += s3c24xx-dma.o
 obj-$(CONFIG_TXX9_DMAC) += txx9dmac.o
 obj-$(CONFIG_TEGRA20_APB_DMA) += tegra20-apb-dma.o
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 16d0daa058a5..eed6bda01790 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -15,6 +15,7 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
@@ -72,7 +73,9 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
 	si = (const struct acpi_csrt_shared_info *)&grp[1];
 
 	/* Match device by MMIO and IRQ */
-	if (si->mmio_base_low != mem || si->gsi_interrupt != irq)
+	if (si->mmio_base_low != lower_32_bits(mem) ||
+	    si->mmio_base_high != upper_32_bits(mem) ||
+	    si->gsi_interrupt != irq)
 		return 0;
 
 	dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 370c661c7d7b..39f59666f93f 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -863,8 +863,12 @@ at_xdmac_interleaved_queue_desc(struct dma_chan *chan,
 	 * access. Hopefully we can access DDR through both ports (at least on
 	 * SAMA5D4x), so we can use the same interface for source and dest,
 	 * that solves the fact we don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DIF(0)
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
 					| AT_XDMAC_CC_MBSIZE_SIXTEEN
 					| AT_XDMAC_CC_TYPE_MEM_TRAN;
@@ -1041,8 +1045,12 @@ at_xdmac_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
 	 * access DDR through both ports (at least on SAMA5D4x), so we can use
 	 * the same interface for source and dest, that solves the fact we
 	 * don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DAM_INCREMENTED_AM
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DAM_INCREMENTED_AM
 					| AT_XDMAC_CC_SAM_INCREMENTED_AM
 					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
@@ -1143,8 +1151,12 @@ static struct at_xdmac_desc *at_xdmac_memset_create_desc(struct dma_chan *chan,
 	 * access. Hopefully we can access DDR through both ports (at least on
 	 * SAMA5D4x), so we can use the same interface for source and dest,
 	 * that solves the fact we don't know the direction.
+	 * ERRATA: Even if useless for memory transfers, the PERID has to not
+	 * match the one of another channel. If not, it could lead to spurious
+	 * flag status.
 	 */
-	u32			chan_cc = AT_XDMAC_CC_DAM_UBS_AM
+	u32			chan_cc = AT_XDMAC_CC_PERID(0x3f)
+					| AT_XDMAC_CC_DAM_UBS_AM
 					| AT_XDMAC_CC_SAM_INCREMENTED_AM
 					| AT_XDMAC_CC_DIF(0)
 					| AT_XDMAC_CC_SIF(0)
@@ -1998,8 +2010,6 @@ static int at_xdmac_remove(struct platform_device *pdev)
 	dma_async_device_unregister(&atxdmac->dma);
 	clk_disable_unprepare(atxdmac->clk);
 
-	synchronize_irq(atxdmac->irq);
-
 	free_irq(atxdmac->irq, atxdmac->dma.dev);
 
 	for (i = 0; i < atxdmac->dma.chancnt; i++) {
diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
index 5b2395e7e04d..c3468094393e 100644
--- a/drivers/dma/dma-axi-dmac.c
+++ b/drivers/dma/dma-axi-dmac.c
@@ -307,6 +307,13 @@ static int axi_dmac_terminate_all(struct dma_chan *c)
 	return 0;
 }
 
+static void axi_dmac_synchronize(struct dma_chan *c)
+{
+	struct axi_dmac_chan *chan = to_axi_dmac_chan(c);
+
+	vchan_synchronize(&chan->vchan);
+}
+
 static void axi_dmac_issue_pending(struct dma_chan *c)
 {
 	struct axi_dmac_chan *chan = to_axi_dmac_chan(c);
@@ -613,6 +620,7 @@ static int axi_dmac_probe(struct platform_device *pdev)
 	dma_dev->device_prep_dma_cyclic = axi_dmac_prep_dma_cyclic;
 	dma_dev->device_prep_interleaved_dma = axi_dmac_prep_interleaved;
 	dma_dev->device_terminate_all = axi_dmac_terminate_all;
+	dma_dev->device_synchronize = axi_dmac_synchronize;
 	dma_dev->dev = &pdev->dev;
 	dma_dev->chancnt = 1;
 	dma_dev->src_addr_widths = BIT(dmac->chan.src_width);
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 3ecec1445adf..c50a247be2e0 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -43,6 +43,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -265,8 +266,11 @@ static void dma_chan_put(struct dma_chan *chan)
 	module_put(dma_chan_to_owner(chan));
 
 	/* This channel is not in use anymore, free it */
-	if (!chan->client_count && chan->device->device_free_chan_resources)
+	if (!chan->client_count && chan->device->device_free_chan_resources) {
+		/* Make sure all operations have completed */
+		dmaengine_synchronize(chan);
 		chan->device->device_free_chan_resources(chan);
+	}
 
 	/* If the channel is used via a DMA request router, free the mapping */
 	if (chan->router && chan->router->route_free) {
@@ -493,6 +497,7 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
 	caps->dst_addr_widths = device->dst_addr_widths;
 	caps->directions = device->directions;
 	caps->residue_granularity = device->residue_granularity;
+	caps->descriptor_reuse = device->descriptor_reuse;
 
 	/*
 	 * Some devices implement only pause (e.g. to get residuum) but no
@@ -511,7 +516,7 @@ static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
 {
 	struct dma_chan *chan;
 
-	if (!__dma_device_satisfies_mask(dev, mask)) {
+	if (mask && !__dma_device_satisfies_mask(dev, mask)) {
 		pr_debug("%s: wrong capabilities\n", __func__);
 		return NULL;
 	}
@@ -542,6 +547,42 @@ static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
 	return NULL;
 }
 
+static struct dma_chan *find_candidate(struct dma_device *device,
+				       const dma_cap_mask_t *mask,
+				       dma_filter_fn fn, void *fn_param)
+{
+	struct dma_chan *chan = private_candidate(mask, device, fn, fn_param);
+	int err;
+
+	if (chan) {
+		/* Found a suitable channel, try to grab, prep, and return it.
+		 * We first set DMA_PRIVATE to disable balance_ref_count as this
+		 * channel will not be published in the general-purpose
+		 * allocator
+		 */
+		dma_cap_set(DMA_PRIVATE, device->cap_mask);
+		device->privatecnt++;
+		err = dma_chan_get(chan);
+
+		if (err) {
+			if (err == -ENODEV) {
+				pr_debug("%s: %s module removed\n", __func__,
+					 dma_chan_name(chan));
+				list_del_rcu(&device->global_node);
+			} else
+				pr_debug("%s: failed to get %s: (%d)\n",
+					 __func__, dma_chan_name(chan), err);
+
+			if (--device->privatecnt == 0)
+				dma_cap_clear(DMA_PRIVATE, device->cap_mask);
+
+			chan = ERR_PTR(err);
+		}
+	}
+
+	return chan ? chan : ERR_PTR(-EPROBE_DEFER);
+}
+
 /**
  * dma_get_slave_channel - try to get specific channel exclusively
  * @chan: target channel
@@ -580,7 +621,6 @@ struct dma_chan *dma_get_any_slave_channel(struct dma_device *device)
 {
 	dma_cap_mask_t mask;
 	struct dma_chan *chan;
-	int err;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
@@ -588,23 +628,11 @@ struct dma_chan *dma_get_any_slave_channel(struct dma_device *device)
 	/* lock against __dma_request_channel */
 	mutex_lock(&dma_list_mutex);
 
-	chan = private_candidate(&mask, device, NULL, NULL);
-	if (chan) {
-		dma_cap_set(DMA_PRIVATE, device->cap_mask);
-		device->privatecnt++;
-		err = dma_chan_get(chan);
-		if (err) {
-			pr_debug("%s: failed to get %s: (%d)\n",
-				__func__, dma_chan_name(chan), err);
-			chan = NULL;
-			if (--device->privatecnt == 0)
-				dma_cap_clear(DMA_PRIVATE, device->cap_mask);
-		}
-	}
+	chan = find_candidate(device, &mask, NULL, NULL);
 
 	mutex_unlock(&dma_list_mutex);
 
-	return chan;
+	return IS_ERR(chan) ? NULL : chan;
 }
 EXPORT_SYMBOL_GPL(dma_get_any_slave_channel);
 
@@ -621,35 +649,15 @@ struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
 {
 	struct dma_device *device, *_d;
 	struct dma_chan *chan = NULL;
-	int err;
 
 	/* Find a channel */
 	mutex_lock(&dma_list_mutex);
 	list_for_each_entry_safe(device, _d, &dma_device_list, global_node) {
-		chan = private_candidate(mask, device, fn, fn_param);
-		if (chan) {
-			/* Found a suitable channel, try to grab, prep, and
-			 * return it.  We first set DMA_PRIVATE to disable
-			 * balance_ref_count as this channel will not be
-			 * published in the general-purpose allocator
-			 */
-			dma_cap_set(DMA_PRIVATE, device->cap_mask);
-			device->privatecnt++;
-			err = dma_chan_get(chan);
+		chan = find_candidate(device, mask, fn, fn_param);
+		if (!IS_ERR(chan))
+			break;
 
-			if (err == -ENODEV) {
-				pr_debug("%s: %s module removed\n",
-					 __func__, dma_chan_name(chan));
-				list_del_rcu(&device->global_node);
-			} else if (err)
-				pr_debug("%s: failed to get %s: (%d)\n",
-					 __func__, dma_chan_name(chan), err);
-			else
-				break;
-			if (--device->privatecnt == 0)
-				dma_cap_clear(DMA_PRIVATE, device->cap_mask);
-			chan = NULL;
-		}
+		chan = NULL;
 	}
 	mutex_unlock(&dma_list_mutex);
 
@@ -662,27 +670,73 @@ struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
 }
 EXPORT_SYMBOL_GPL(__dma_request_channel);
 
+static const struct dma_slave_map *dma_filter_match(struct dma_device *device,
+						    const char *name,
+						    struct device *dev)
+{
+	int i;
+
+	if (!device->filter.mapcnt)
+		return NULL;
+
+	for (i = 0; i < device->filter.mapcnt; i++) {
+		const struct dma_slave_map *map = &device->filter.map[i];
+
+		if (!strcmp(map->devname, dev_name(dev)) &&
+		    !strcmp(map->slave, name))
+			return map;
+	}
+
+	return NULL;
+}
+
 /**
- * dma_request_slave_channel_reason - try to allocate an exclusive slave channel
+ * dma_request_chan - try to allocate an exclusive slave channel
  * @dev:	pointer to client device structure
  * @name:	slave channel name
  *
  * Returns pointer to appropriate DMA channel on success or an error pointer.
  */
-struct dma_chan *dma_request_slave_channel_reason(struct device *dev,
-						  const char *name)
+struct dma_chan *dma_request_chan(struct device *dev, const char *name)
 {
+	struct dma_device *d, *_d;
+	struct dma_chan *chan = NULL;
+
 	/* If device-tree is present get slave info from here */
 	if (dev->of_node)
-		return of_dma_request_slave_channel(dev->of_node, name);
+		chan = of_dma_request_slave_channel(dev->of_node, name);
 
 	/* If device was enumerated by ACPI get slave info from here */
-	if (ACPI_HANDLE(dev))
-		return acpi_dma_request_slave_chan_by_name(dev, name);
+	if (has_acpi_companion(dev) && !chan)
+		chan = acpi_dma_request_slave_chan_by_name(dev, name);
+
+	if (chan) {
+		/* Valid channel found or requester need to be deferred */
+		if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER)
+			return chan;
+	}
 
-	return ERR_PTR(-ENODEV);
+	/* Try to find the channel via the DMA filter map(s) */
+	mutex_lock(&dma_list_mutex);
+	list_for_each_entry_safe(d, _d, &dma_device_list, global_node) {
+		dma_cap_mask_t mask;
+		const struct dma_slave_map *map = dma_filter_match(d, name, dev);
+
+		if (!map)
+			continue;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		chan = find_candidate(d, &mask, d->filter.fn, map->param);
+		if (!IS_ERR(chan))
+			break;
+	}
+	mutex_unlock(&dma_list_mutex);
+
+	return chan ? chan : ERR_PTR(-EPROBE_DEFER);
 }
-EXPORT_SYMBOL_GPL(dma_request_slave_channel_reason);
+EXPORT_SYMBOL_GPL(dma_request_chan);
 
 /**
  * dma_request_slave_channel - try to allocate an exclusive slave channel
@@ -694,17 +748,35 @@ EXPORT_SYMBOL_GPL(dma_request_slave_channel_reason);
 struct dma_chan *dma_request_slave_channel(struct device *dev,
 					   const char *name)
 {
-	struct dma_chan *ch = dma_request_slave_channel_reason(dev, name);
+	struct dma_chan *ch = dma_request_chan(dev, name);
 	if (IS_ERR(ch))
 		return NULL;
 
-	dma_cap_set(DMA_PRIVATE, ch->device->cap_mask);
-	ch->device->privatecnt++;
-
 	return ch;
 }
 EXPORT_SYMBOL_GPL(dma_request_slave_channel);
 
+/**
+ * dma_request_chan_by_mask - allocate a channel satisfying certain capabilities
+ * @mask: capabilities that the channel must satisfy
+ *
+ * Returns pointer to appropriate DMA channel on success or an error pointer.
+ */
+struct dma_chan *dma_request_chan_by_mask(const dma_cap_mask_t *mask)
+{
+	struct dma_chan *chan;
+
+	if (!mask)
+		return ERR_PTR(-ENODEV);
+
+	chan = __dma_request_channel(mask, NULL, NULL);
+	if (!chan)
+		chan = ERR_PTR(-ENODEV);
+
+	return chan;
+}
+EXPORT_SYMBOL_GPL(dma_request_chan_by_mask);
+
 void dma_release_channel(struct dma_chan *chan)
 {
 	mutex_lock(&dma_list_mutex);
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 7067b6ddc1db..8b20930ade98 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -622,12 +622,17 @@ static void dw_dma_tasklet(unsigned long data)
 static irqreturn_t dw_dma_interrupt(int irq, void *dev_id)
 {
 	struct dw_dma *dw = dev_id;
-	u32 status = dma_readl(dw, STATUS_INT);
+	u32 status;
 
+	/* Check if we have any interrupt from the DMAC which is not in use */
+	if (!dw->in_use)
+		return IRQ_NONE;
+
+	status = dma_readl(dw, STATUS_INT);
 	dev_vdbg(dw->dma.dev, "%s: status=0x%x\n", __func__, status);
 
 	/* Check if we have any interrupt from the DMAC */
-	if (!status || !dw->in_use)
+	if (!status)
 		return IRQ_NONE;
 
 	/*
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 68a4815750b5..26edbe3a27ac 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -103,18 +103,21 @@ dw_dma_parse_dt(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	struct dw_dma_platform_data *pdata;
 	u32 tmp, arr[DW_DMA_MAX_NR_MASTERS];
+	u32 nr_channels;
 
 	if (!np) {
 		dev_err(&pdev->dev, "Missing DT data\n");
 		return NULL;
 	}
 
+	if (of_property_read_u32(np, "dma-channels", &nr_channels))
+		return NULL;
+
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
 		return NULL;
 
-	if (of_property_read_u32(np, "dma-channels", &pdata->nr_channels))
-		return NULL;
+	pdata->nr_channels = nr_channels;
 
 	if (of_property_read_bool(np, "is_private"))
 		pdata->is_private = true;
@@ -155,7 +158,6 @@ static int dw_probe(struct platform_device *pdev)
 	struct dw_dma_chip *chip;
 	struct device *dev = &pdev->dev;
 	struct resource *mem;
-	const struct acpi_device_id *id;
 	struct dw_dma_platform_data *pdata;
 	int err;
 
@@ -179,11 +181,6 @@ static int dw_probe(struct platform_device *pdev)
 	pdata = dev_get_platdata(dev);
 	if (!pdata)
 		pdata = dw_dma_parse_dt(pdev);
-	if (!pdata && has_acpi_companion(dev)) {
-		id = acpi_match_device(dev->driver->acpi_match_table, dev);
-		if (id)
-			pdata = (struct dw_dma_platform_data *)id->driver_data;
-	}
 
 	chip->dev = dev;
 
@@ -239,7 +236,19 @@ static void dw_shutdown(struct platform_device *pdev)
 {
 	struct dw_dma_chip *chip = platform_get_drvdata(pdev);
 
+	/*
+	 * We have to call dw_dma_disable() to stop any ongoing transfer. On
+	 * some platforms we can't do that since DMA device is powered off.
+	 * Moreover we have no possibility to check if the platform is affected
+	 * or not. That's why we call pm_runtime_get_sync() / pm_runtime_put()
+	 * unconditionally. On the other hand we can't use
+	 * pm_runtime_suspended() because runtime PM framework is not fully
+	 * used by the driver.
+	 */
+	pm_runtime_get_sync(chip->dev);
 	dw_dma_disable(chip);
+	pm_runtime_put_sync_suspend(chip->dev);
+
 	clk_disable_unprepare(chip->clk);
 }
 
@@ -252,17 +261,8 @@ MODULE_DEVICE_TABLE(of, dw_dma_of_id_table);
 #endif
 
 #ifdef CONFIG_ACPI
-static struct dw_dma_platform_data dw_dma_acpi_pdata = {
-	.nr_channels = 8,
-	.is_private = true,
-	.chan_allocation_order = CHAN_ALLOCATION_ASCENDING,
-	.chan_priority = CHAN_PRIORITY_ASCENDING,
-	.block_size = 4095,
-	.nr_masters = 2,
-};
-
 static const struct acpi_device_id dw_dma_acpi_id_table[] = {
-	{ "INTL9C60", (kernel_ulong_t)&dw_dma_acpi_pdata },
+	{ "INTL9C60", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, dw_dma_acpi_id_table);
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 16fe773fb846..50584015e046 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -2314,6 +2314,10 @@ static int edma_probe(struct platform_device *pdev)
 		edma_set_chmap(&ecc->slave_chans[i], ecc->dummy_slot);
 	}
 
+	ecc->dma_slave.filter.map = info->slave_map;
+	ecc->dma_slave.filter.mapcnt = info->slavecnt;
+	ecc->dma_slave.filter.fn = edma_filter_fn;
+
 	ret = dma_async_device_register(&ecc->dma_slave);
 	if (ret) {
 		dev_err(dev, "slave ddev registration failed (%d)\n", ret);
@@ -2421,7 +2425,13 @@ static struct platform_driver edma_driver = {
 	},
 };
 
+static int edma_tptc_probe(struct platform_device *pdev)
+{
+	return 0;
+}
+
 static struct platform_driver edma_tptc_driver = {
+	.probe		= edma_tptc_probe,
 	.driver = {
 		.name	= "edma3-tptc",
 		.of_match_table = edma_tptc_of_ids,
diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c
index 915eec3cc279..be2e62b87948 100644
--- a/drivers/dma/fsl-edma.c
+++ b/drivers/dma/fsl-edma.c
@@ -116,6 +116,10 @@
 				BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \
 				BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | \
 				BIT(DMA_SLAVE_BUSWIDTH_8_BYTES)
+enum fsl_edma_pm_state {
+	RUNNING = 0,
+	SUSPENDED,
+};
 
 struct fsl_edma_hw_tcd {
 	__le32	saddr;
@@ -147,6 +151,9 @@ struct fsl_edma_slave_config {
 struct fsl_edma_chan {
 	struct virt_dma_chan		vchan;
 	enum dma_status			status;
+	enum fsl_edma_pm_state		pm_state;
+	bool				idle;
+	u32				slave_id;
 	struct fsl_edma_engine		*edma;
 	struct fsl_edma_desc		*edesc;
 	struct fsl_edma_slave_config	fsc;
@@ -298,6 +305,7 @@ static int fsl_edma_terminate_all(struct dma_chan *chan)
 	spin_lock_irqsave(&fsl_chan->vchan.lock, flags);
 	fsl_edma_disable_request(fsl_chan);
 	fsl_chan->edesc = NULL;
+	fsl_chan->idle = true;
 	vchan_get_all_descriptors(&fsl_chan->vchan, &head);
 	spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
 	vchan_dma_desc_free_list(&fsl_chan->vchan, &head);
@@ -313,6 +321,7 @@ static int fsl_edma_pause(struct dma_chan *chan)
 	if (fsl_chan->edesc) {
 		fsl_edma_disable_request(fsl_chan);
 		fsl_chan->status = DMA_PAUSED;
+		fsl_chan->idle = true;
 	}
 	spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
 	return 0;
@@ -327,6 +336,7 @@ static int fsl_edma_resume(struct dma_chan *chan)
 	if (fsl_chan->edesc) {
 		fsl_edma_enable_request(fsl_chan);
 		fsl_chan->status = DMA_IN_PROGRESS;
+		fsl_chan->idle = false;
 	}
 	spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
 	return 0;
@@ -648,6 +658,7 @@ static void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan)
 	fsl_edma_set_tcd_regs(fsl_chan, fsl_chan->edesc->tcd[0].vtcd);
 	fsl_edma_enable_request(fsl_chan);
 	fsl_chan->status = DMA_IN_PROGRESS;
+	fsl_chan->idle = false;
 }
 
 static irqreturn_t fsl_edma_tx_handler(int irq, void *dev_id)
@@ -676,6 +687,7 @@ static irqreturn_t fsl_edma_tx_handler(int irq, void *dev_id)
 				vchan_cookie_complete(&fsl_chan->edesc->vdesc);
 				fsl_chan->edesc = NULL;
 				fsl_chan->status = DMA_COMPLETE;
+				fsl_chan->idle = true;
 			} else {
 				vchan_cyclic_callback(&fsl_chan->edesc->vdesc);
 			}
@@ -704,6 +716,7 @@ static irqreturn_t fsl_edma_err_handler(int irq, void *dev_id)
 			edma_writeb(fsl_edma, EDMA_CERR_CERR(ch),
 				fsl_edma->membase + EDMA_CERR);
 			fsl_edma->chans[ch].status = DMA_ERROR;
+			fsl_edma->chans[ch].idle = true;
 		}
 	}
 	return IRQ_HANDLED;
@@ -724,6 +737,12 @@ static void fsl_edma_issue_pending(struct dma_chan *chan)
 
 	spin_lock_irqsave(&fsl_chan->vchan.lock, flags);
 
+	if (unlikely(fsl_chan->pm_state != RUNNING)) {
+		spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
+		/* cannot submit due to suspend */
+		return;
+	}
+
 	if (vchan_issue_pending(&fsl_chan->vchan) && !fsl_chan->edesc)
 		fsl_edma_xfer_desc(fsl_chan);
 
@@ -735,6 +754,7 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec,
 {
 	struct fsl_edma_engine *fsl_edma = ofdma->of_dma_data;
 	struct dma_chan *chan, *_chan;
+	struct fsl_edma_chan *fsl_chan;
 	unsigned long chans_per_mux = fsl_edma->n_chans / DMAMUX_NR;
 
 	if (dma_spec->args_count != 2)
@@ -748,8 +768,10 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec,
 			chan = dma_get_slave_channel(chan);
 			if (chan) {
 				chan->device->privatecnt++;
-				fsl_edma_chan_mux(to_fsl_edma_chan(chan),
-					dma_spec->args[1], true);
+				fsl_chan = to_fsl_edma_chan(chan);
+				fsl_chan->slave_id = dma_spec->args[1];
+				fsl_edma_chan_mux(fsl_chan, fsl_chan->slave_id,
+						true);
 				mutex_unlock(&fsl_edma->fsl_edma_mutex);
 				return chan;
 			}
@@ -888,7 +910,9 @@ static int fsl_edma_probe(struct platform_device *pdev)
 		struct fsl_edma_chan *fsl_chan = &fsl_edma->chans[i];
 
 		fsl_chan->edma = fsl_edma;
-
+		fsl_chan->pm_state = RUNNING;
+		fsl_chan->slave_id = 0;
+		fsl_chan->idle = true;
 		fsl_chan->vchan.desc_free = fsl_edma_free_desc;
 		vchan_init(&fsl_chan->vchan, &fsl_edma->dma_dev);
 
@@ -959,6 +983,60 @@ static int fsl_edma_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int fsl_edma_suspend_late(struct device *dev)
+{
+	struct fsl_edma_engine *fsl_edma = dev_get_drvdata(dev);
+	struct fsl_edma_chan *fsl_chan;
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < fsl_edma->n_chans; i++) {
+		fsl_chan = &fsl_edma->chans[i];
+		spin_lock_irqsave(&fsl_chan->vchan.lock, flags);
+		/* Make sure chan is idle or will force disable. */
+		if (unlikely(!fsl_chan->idle)) {
+			dev_warn(dev, "WARN: There is non-idle channel.");
+			fsl_edma_disable_request(fsl_chan);
+			fsl_edma_chan_mux(fsl_chan, 0, false);
+		}
+
+		fsl_chan->pm_state = SUSPENDED;
+		spin_unlock_irqrestore(&fsl_chan->vchan.lock, flags);
+	}
+
+	return 0;
+}
+
+static int fsl_edma_resume_early(struct device *dev)
+{
+	struct fsl_edma_engine *fsl_edma = dev_get_drvdata(dev);
+	struct fsl_edma_chan *fsl_chan;
+	int i;
+
+	for (i = 0; i < fsl_edma->n_chans; i++) {
+		fsl_chan = &fsl_edma->chans[i];
+		fsl_chan->pm_state = RUNNING;
+		edma_writew(fsl_edma, 0x0, fsl_edma->membase + EDMA_TCD_CSR(i));
+		if (fsl_chan->slave_id != 0)
+			fsl_edma_chan_mux(fsl_chan, fsl_chan->slave_id, true);
+	}
+
+	edma_writel(fsl_edma, EDMA_CR_ERGA | EDMA_CR_ERCA,
+			fsl_edma->membase + EDMA_CR);
+
+	return 0;
+}
+
+/*
+ * eDMA provides the service to others, so it should be suspend late
+ * and resume early. When eDMA suspend, all of the clients should stop
+ * the DMA data transmission and let the channel idle.
+ */
+static const struct dev_pm_ops fsl_edma_pm_ops = {
+	.suspend_late   = fsl_edma_suspend_late,
+	.resume_early   = fsl_edma_resume_early,
+};
+
 static const struct of_device_id fsl_edma_dt_ids[] = {
 	{ .compatible = "fsl,vf610-edma", },
 	{ /* sentinel */ }
@@ -969,6 +1047,7 @@ static struct platform_driver fsl_edma_driver = {
 	.driver		= {
 		.name	= "fsl-edma",
 		.of_match_table = fsl_edma_dt_ids,
+		.pm     = &fsl_edma_pm_ops,
 	},
 	.probe          = fsl_edma_probe,
 	.remove		= fsl_edma_remove,
diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c
index 823ad728aecf..eef145edb936 100644
--- a/drivers/dma/hsu/hsu.c
+++ b/drivers/dma/hsu/hsu.c
@@ -228,6 +228,8 @@ static struct dma_async_tx_descriptor *hsu_dma_prep_slave_sg(
 	for_each_sg(sgl, sg, sg_len, i) {
 		desc->sg[i].addr = sg_dma_address(sg);
 		desc->sg[i].len = sg_dma_len(sg);
+
+		desc->length += sg_dma_len(sg);
 	}
 
 	desc->nents = sg_len;
@@ -249,21 +251,10 @@ static void hsu_dma_issue_pending(struct dma_chan *chan)
 	spin_unlock_irqrestore(&hsuc->vchan.lock, flags);
 }
 
-static size_t hsu_dma_desc_size(struct hsu_dma_desc *desc)
-{
-	size_t bytes = 0;
-	unsigned int i;
-
-	for (i = desc->active; i < desc->nents; i++)
-		bytes += desc->sg[i].len;
-
-	return bytes;
-}
-
 static size_t hsu_dma_active_desc_size(struct hsu_dma_chan *hsuc)
 {
 	struct hsu_dma_desc *desc = hsuc->desc;
-	size_t bytes = hsu_dma_desc_size(desc);
+	size_t bytes = desc->length;
 	int i;
 
 	i = desc->active % HSU_DMA_CHAN_NR_DESC;
@@ -294,7 +285,7 @@ static enum dma_status hsu_dma_tx_status(struct dma_chan *chan,
 		dma_set_residue(state, bytes);
 		status = hsuc->desc->status;
 	} else if (vdesc) {
-		bytes = hsu_dma_desc_size(to_hsu_dma_desc(vdesc));
+		bytes = to_hsu_dma_desc(vdesc)->length;
 		dma_set_residue(state, bytes);
 	}
 	spin_unlock_irqrestore(&hsuc->vchan.lock, flags);
diff --git a/drivers/dma/hsu/hsu.h b/drivers/dma/hsu/hsu.h
index f06579c6d548..578a8ee8cd05 100644
--- a/drivers/dma/hsu/hsu.h
+++ b/drivers/dma/hsu/hsu.h
@@ -65,6 +65,7 @@ struct hsu_dma_desc {
 	enum dma_transfer_direction direction;
 	struct hsu_dma_sg *sg;
 	unsigned int nents;
+	size_t length;
 	unsigned int active;
 	enum dma_status status;
 };
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 7d56b47e4fcf..3cb7b2c78197 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -178,20 +178,12 @@ static irqreturn_t idma64_irq(int irq, void *dev)
 	if (!status)
 		return IRQ_NONE;
 
-	/* Disable interrupts */
-	channel_clear_bit(idma64, MASK(XFER), idma64->all_chan_mask);
-	channel_clear_bit(idma64, MASK(ERROR), idma64->all_chan_mask);
-
 	status_xfer = dma_readl(idma64, RAW(XFER));
 	status_err = dma_readl(idma64, RAW(ERROR));
 
 	for (i = 0; i < idma64->dma.chancnt; i++)
 		idma64_chan_irq(idma64, i, status_err, status_xfer);
 
-	/* Re-enable interrupts */
-	channel_set_bit(idma64, MASK(XFER), idma64->all_chan_mask);
-	channel_set_bit(idma64, MASK(ERROR), idma64->all_chan_mask);
-
 	return IRQ_HANDLED;
 }
 
@@ -239,7 +231,7 @@ static void idma64_vdesc_free(struct virt_dma_desc *vdesc)
 	idma64_desc_free(idma64c, to_idma64_desc(vdesc));
 }
 
-static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw,
+static void idma64_hw_desc_fill(struct idma64_hw_desc *hw,
 		struct dma_slave_config *config,
 		enum dma_transfer_direction direction, u64 llp)
 {
@@ -276,26 +268,26 @@ static u64 idma64_hw_desc_fill(struct idma64_hw_desc *hw,
 		     IDMA64C_CTLL_SRC_WIDTH(src_width);
 
 	lli->llp = llp;
-	return hw->llp;
 }
 
 static void idma64_desc_fill(struct idma64_chan *idma64c,
 		struct idma64_desc *desc)
 {
 	struct dma_slave_config *config = &idma64c->config;
-	struct idma64_hw_desc *hw = &desc->hw[desc->ndesc - 1];
+	unsigned int i = desc->ndesc;
+	struct idma64_hw_desc *hw = &desc->hw[i - 1];
 	struct idma64_lli *lli = hw->lli;
 	u64 llp = 0;
-	unsigned int i = desc->ndesc;
 
 	/* Fill the hardware descriptors and link them to a list */
 	do {
 		hw = &desc->hw[--i];
-		llp = idma64_hw_desc_fill(hw, config, desc->direction, llp);
+		idma64_hw_desc_fill(hw, config, desc->direction, llp);
+		llp = hw->llp;
 		desc->length += hw->len;
 	} while (i);
 
-	/* Trigger interrupt after last block */
+	/* Trigger an interrupt after the last block is transfered */
 	lli->ctllo |= IDMA64C_CTLL_INT_EN;
 }
 
@@ -596,6 +588,8 @@ static int idma64_probe(struct idma64_chip *chip)
 
 	idma64->dma.dev = chip->dev;
 
+	dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK);
+
 	ret = dma_async_device_register(&idma64->dma);
 	if (ret)
 		return ret;
diff --git a/drivers/dma/idma64.h b/drivers/dma/idma64.h
index f6aeff0af8a5..8423f13ed0da 100644
--- a/drivers/dma/idma64.h
+++ b/drivers/dma/idma64.h
@@ -54,7 +54,8 @@
 #define IDMA64C_CTLL_LLP_S_EN		(1 << 28)	/* src block chain */
 
 /* Bitfields in CTL_HI */
-#define IDMA64C_CTLH_BLOCK_TS(x)	((x) & ((1 << 17) - 1))
+#define IDMA64C_CTLH_BLOCK_TS_MASK	((1 << 17) - 1)
+#define IDMA64C_CTLH_BLOCK_TS(x)	((x) & IDMA64C_CTLH_BLOCK_TS_MASK)
 #define IDMA64C_CTLH_DONE		(1 << 17)
 
 /* Bitfields in CFG_LO */
diff --git a/drivers/dma/img-mdc-dma.c b/drivers/dma/img-mdc-dma.c
index 9ca56830cc63..a4c53be482cf 100644
--- a/drivers/dma/img-mdc-dma.c
+++ b/drivers/dma/img-mdc-dma.c
@@ -651,6 +651,48 @@ static enum dma_status mdc_tx_status(struct dma_chan *chan,
 	return ret;
 }
 
+static unsigned int mdc_get_new_events(struct mdc_chan *mchan)
+{
+	u32 val, processed, done1, done2;
+	unsigned int ret;
+
+	val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
+	processed = (val >> MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT) &
+				MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK;
+	/*
+	 * CMDS_DONE may have incremented between reading CMDS_PROCESSED
+	 * and clearing INT_ACTIVE.  Re-read CMDS_PROCESSED to ensure we
+	 * didn't miss a command completion.
+	 */
+	do {
+		val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
+
+		done1 = (val >> MDC_CMDS_PROCESSED_CMDS_DONE_SHIFT) &
+			MDC_CMDS_PROCESSED_CMDS_DONE_MASK;
+
+		val &= ~((MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK <<
+			  MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT) |
+			 MDC_CMDS_PROCESSED_INT_ACTIVE);
+
+		val |= done1 << MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT;
+
+		mdc_chan_writel(mchan, val, MDC_CMDS_PROCESSED);
+
+		val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
+
+		done2 = (val >> MDC_CMDS_PROCESSED_CMDS_DONE_SHIFT) &
+			MDC_CMDS_PROCESSED_CMDS_DONE_MASK;
+	} while (done1 != done2);
+
+	if (done1 >= processed)
+		ret = done1 - processed;
+	else
+		ret = ((MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK + 1) -
+			processed) + done1;
+
+	return ret;
+}
+
 static int mdc_terminate_all(struct dma_chan *chan)
 {
 	struct mdc_chan *mchan = to_mdc_chan(chan);
@@ -667,6 +709,8 @@ static int mdc_terminate_all(struct dma_chan *chan)
 	mchan->desc = NULL;
 	vchan_get_all_descriptors(&mchan->vc, &head);
 
+	mdc_get_new_events(mchan);
+
 	spin_unlock_irqrestore(&mchan->vc.lock, flags);
 
 	if (mdesc)
@@ -703,35 +747,17 @@ static irqreturn_t mdc_chan_irq(int irq, void *dev_id)
 {
 	struct mdc_chan *mchan = (struct mdc_chan *)dev_id;
 	struct mdc_tx_desc *mdesc;
-	u32 val, processed, done1, done2;
-	unsigned int i;
+	unsigned int i, new_events;
 
 	spin_lock(&mchan->vc.lock);
 
-	val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
-	processed = (val >> MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT) &
-		MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK;
-	/*
-	 * CMDS_DONE may have incremented between reading CMDS_PROCESSED
-	 * and clearing INT_ACTIVE.  Re-read CMDS_PROCESSED to ensure we
-	 * didn't miss a command completion.
-	 */
-	do {
-		val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
-		done1 = (val >> MDC_CMDS_PROCESSED_CMDS_DONE_SHIFT) &
-			MDC_CMDS_PROCESSED_CMDS_DONE_MASK;
-		val &= ~((MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK <<
-			  MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT) |
-			 MDC_CMDS_PROCESSED_INT_ACTIVE);
-		val |= done1 << MDC_CMDS_PROCESSED_CMDS_PROCESSED_SHIFT;
-		mdc_chan_writel(mchan, val, MDC_CMDS_PROCESSED);
-		val = mdc_chan_readl(mchan, MDC_CMDS_PROCESSED);
-		done2 = (val >> MDC_CMDS_PROCESSED_CMDS_DONE_SHIFT) &
-			MDC_CMDS_PROCESSED_CMDS_DONE_MASK;
-	} while (done1 != done2);
-
 	dev_dbg(mdma2dev(mchan->mdma), "IRQ on channel %d\n", mchan->chan_nr);
 
+	new_events = mdc_get_new_events(mchan);
+
+	if (!new_events)
+		goto out;
+
 	mdesc = mchan->desc;
 	if (!mdesc) {
 		dev_warn(mdma2dev(mchan->mdma),
@@ -740,8 +766,7 @@ static irqreturn_t mdc_chan_irq(int irq, void *dev_id)
 		goto out;
 	}
 
-	for (i = processed; i != done1;
-	     i = (i + 1) % (MDC_CMDS_PROCESSED_CMDS_PROCESSED_MASK + 1)) {
+	for (i = 0; i < new_events; i++) {
 		/*
 		 * The first interrupt in a transfer indicates that the
 		 * command list has been loaded, not that a command has
@@ -979,7 +1004,6 @@ static int mdc_dma_remove(struct platform_device *pdev)
 				 vc.chan.device_node) {
 		list_del(&mchan->vc.chan.device_node);
 
-		synchronize_irq(mchan->irq);
 		devm_free_irq(&pdev->dev, mchan->irq, mchan);
 
 		tasklet_kill(&mchan->vc.task);
diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c
index 2cb7c308d5c7..0b9b6b07db9e 100644
--- a/drivers/dma/ioat/dca.c
+++ b/drivers/dma/ioat/dca.c
@@ -224,7 +224,7 @@ static u8 ioat_dca_get_tag(struct dca_provider *dca,
 	return tag;
 }
 
-static struct dca_ops ioat_dca_ops = {
+static const struct dca_ops ioat_dca_ops = {
 	.add_requester		= ioat_dca_add_requester,
 	.remove_requester	= ioat_dca_remove_requester,
 	.get_tag		= ioat_dca_get_tag,
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 8f4e607d5817..b8f48074789f 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -235,43 +235,11 @@ ioat_chan_by_index(struct ioatdma_device *ioat_dma, int index)
 	return ioat_dma->idx[index];
 }
 
-static inline u64 ioat_chansts_32(struct ioatdma_chan *ioat_chan)
-{
-	u8 ver = ioat_chan->ioat_dma->version;
-	u64 status;
-	u32 status_lo;
-
-	/* We need to read the low address first as this causes the
-	 * chipset to latch the upper bits for the subsequent read
-	 */
-	status_lo = readl(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET_LOW(ver));
-	status = readl(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET_HIGH(ver));
-	status <<= 32;
-	status |= status_lo;
-
-	return status;
-}
-
-#if BITS_PER_LONG == 64
-
 static inline u64 ioat_chansts(struct ioatdma_chan *ioat_chan)
 {
-	u8 ver = ioat_chan->ioat_dma->version;
-	u64 status;
-
-	 /* With IOAT v3.3 the status register is 64bit.  */
-	if (ver >= IOAT_VER_3_3)
-		status = readq(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET(ver));
-	else
-		status = ioat_chansts_32(ioat_chan);
-
-	return status;
+	return readq(ioat_chan->reg_base + IOAT_CHANSTS_OFFSET);
 }
 
-#else
-#define ioat_chansts ioat_chansts_32
-#endif
-
 static inline u64 ioat_chansts_to_addr(u64 status)
 {
 	return status & IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR;
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h
index 909352f74c89..4994a3623aee 100644
--- a/drivers/dma/ioat/registers.h
+++ b/drivers/dma/ioat/registers.h
@@ -99,19 +99,9 @@
 #define IOAT_DMA_COMP_V1			0x0001	/* Compatibility with DMA version 1 */
 #define IOAT_DMA_COMP_V2			0x0002	/* Compatibility with DMA version 2 */
 
-
-#define IOAT1_CHANSTS_OFFSET		0x04	/* 64-bit Channel Status Register */
-#define IOAT2_CHANSTS_OFFSET		0x08	/* 64-bit Channel Status Register */
-#define IOAT_CHANSTS_OFFSET(ver)		((ver) < IOAT_VER_2_0 \
-						? IOAT1_CHANSTS_OFFSET : IOAT2_CHANSTS_OFFSET)
-#define IOAT1_CHANSTS_OFFSET_LOW	0x04
-#define IOAT2_CHANSTS_OFFSET_LOW	0x08
-#define IOAT_CHANSTS_OFFSET_LOW(ver)		((ver) < IOAT_VER_2_0 \
-						? IOAT1_CHANSTS_OFFSET_LOW : IOAT2_CHANSTS_OFFSET_LOW)
-#define IOAT1_CHANSTS_OFFSET_HIGH	0x08
-#define IOAT2_CHANSTS_OFFSET_HIGH	0x0C
-#define IOAT_CHANSTS_OFFSET_HIGH(ver)		((ver) < IOAT_VER_2_0 \
-						? IOAT1_CHANSTS_OFFSET_HIGH : IOAT2_CHANSTS_OFFSET_HIGH)
+/* IOAT1 define left for i7300_idle driver to not fail compiling */
+#define IOAT1_CHANSTS_OFFSET		0x04
+#define IOAT_CHANSTS_OFFSET		0x08	/* 64-bit Channel Status Register */
 #define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR	(~0x3fULL)
 #define IOAT_CHANSTS_SOFT_ERR			0x10ULL
 #define IOAT_CHANSTS_UNAFFILIATED_ERR		0x8ULL
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 1c2de9a834a9..14091f878f80 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -139,46 +139,10 @@ static void mv_chan_clear_err_status(struct mv_xor_chan *chan)
 }
 
 static void mv_chan_set_mode(struct mv_xor_chan *chan,
-			     enum dma_transaction_type type)
+			     u32 op_mode)
 {
-	u32 op_mode;
 	u32 config = readl_relaxed(XOR_CONFIG(chan));
 
-	switch (type) {
-	case DMA_XOR:
-		op_mode = XOR_OPERATION_MODE_XOR;
-		break;
-	case DMA_MEMCPY:
-		op_mode = XOR_OPERATION_MODE_MEMCPY;
-		break;
-	default:
-		dev_err(mv_chan_to_devp(chan),
-			"error: unsupported operation %d\n",
-			type);
-		BUG();
-		return;
-	}
-
-	config &= ~0x7;
-	config |= op_mode;
-
-#if defined(__BIG_ENDIAN)
-	config |= XOR_DESCRIPTOR_SWAP;
-#else
-	config &= ~XOR_DESCRIPTOR_SWAP;
-#endif
-
-	writel_relaxed(config, XOR_CONFIG(chan));
-	chan->current_type = type;
-}
-
-static void mv_chan_set_mode_to_desc(struct mv_xor_chan *chan)
-{
-	u32 op_mode;
-	u32 config = readl_relaxed(XOR_CONFIG(chan));
-
-	op_mode = XOR_OPERATION_MODE_IN_DESC;
-
 	config &= ~0x7;
 	config |= op_mode;
 
@@ -1043,9 +1007,9 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
 	mv_chan_unmask_interrupts(mv_chan);
 
 	if (mv_chan->op_in_desc == XOR_MODE_IN_DESC)
-		mv_chan_set_mode_to_desc(mv_chan);
+		mv_chan_set_mode(mv_chan, XOR_OPERATION_MODE_IN_DESC);
 	else
-		mv_chan_set_mode(mv_chan, DMA_XOR);
+		mv_chan_set_mode(mv_chan, XOR_OPERATION_MODE_XOR);
 
 	spin_lock_init(&mv_chan->lock);
 	INIT_LIST_HEAD(&mv_chan->chain);
@@ -1121,6 +1085,57 @@ mv_xor_conf_mbus_windows(struct mv_xor_device *xordev,
 	writel(0, base + WINDOW_OVERRIDE_CTRL(1));
 }
 
+/*
+ * Since this XOR driver is basically used only for RAID5, we don't
+ * need to care about synchronizing ->suspend with DMA activity,
+ * because the DMA engine will naturally be quiet due to the block
+ * devices being suspended.
+ */
+static int mv_xor_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct mv_xor_device *xordev = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
+		struct mv_xor_chan *mv_chan = xordev->channels[i];
+
+		if (!mv_chan)
+			continue;
+
+		mv_chan->saved_config_reg =
+			readl_relaxed(XOR_CONFIG(mv_chan));
+		mv_chan->saved_int_mask_reg =
+			readl_relaxed(XOR_INTR_MASK(mv_chan));
+	}
+
+	return 0;
+}
+
+static int mv_xor_resume(struct platform_device *dev)
+{
+	struct mv_xor_device *xordev = platform_get_drvdata(dev);
+	const struct mbus_dram_target_info *dram;
+	int i;
+
+	for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
+		struct mv_xor_chan *mv_chan = xordev->channels[i];
+
+		if (!mv_chan)
+			continue;
+
+		writel_relaxed(mv_chan->saved_config_reg,
+			       XOR_CONFIG(mv_chan));
+		writel_relaxed(mv_chan->saved_int_mask_reg,
+			       XOR_INTR_MASK(mv_chan));
+	}
+
+	dram = mv_mbus_dram_info();
+	if (dram)
+		mv_xor_conf_mbus_windows(xordev, dram);
+
+	return 0;
+}
+
 static const struct of_device_id mv_xor_dt_ids[] = {
 	{ .compatible = "marvell,orion-xor", .data = (void *)XOR_MODE_IN_REG },
 	{ .compatible = "marvell,armada-380-xor", .data = (void *)XOR_MODE_IN_DESC },
@@ -1282,6 +1297,8 @@ err_channel_add:
 
 static struct platform_driver mv_xor_driver = {
 	.probe		= mv_xor_probe,
+	.suspend        = mv_xor_suspend,
+	.resume         = mv_xor_resume,
 	.driver		= {
 		.name	        = MV_XOR_NAME,
 		.of_match_table = of_match_ptr(mv_xor_dt_ids),
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index b7455b42137b..c19fe30e5ae9 100644
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -110,7 +110,6 @@ struct mv_xor_chan {
 	void __iomem		*mmr_high_base;
 	unsigned int		idx;
 	int                     irq;
-	enum dma_transaction_type	current_type;
 	struct list_head	chain;
 	struct list_head	free_slots;
 	struct list_head	allocated_slots;
@@ -126,6 +125,7 @@ struct mv_xor_chan {
 	char			dummy_src[MV_XOR_MIN_BYTE_COUNT];
 	char			dummy_dst[MV_XOR_MIN_BYTE_COUNT];
 	dma_addr_t		dummy_src_addr, dummy_dst_addr;
+	u32                     saved_config_reg, saved_int_mask_reg;
 };
 
 /**
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 1dfc71c90123..9794b073d7d7 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -28,8 +28,6 @@
 struct omap_dmadev {
 	struct dma_device ddev;
 	spinlock_t lock;
-	struct tasklet_struct task;
-	struct list_head pending;
 	void __iomem *base;
 	const struct omap_dma_reg *reg_map;
 	struct omap_system_dma_plat_info *plat;
@@ -42,7 +40,6 @@ struct omap_dmadev {
 
 struct omap_chan {
 	struct virt_dma_chan vc;
-	struct list_head node;
 	void __iomem *channel_base;
 	const struct omap_dma_reg *reg_map;
 	uint32_t ccr;
@@ -454,33 +451,6 @@ static void omap_dma_callback(int ch, u16 status, void *data)
 	spin_unlock_irqrestore(&c->vc.lock, flags);
 }
 
-/*
- * This callback schedules all pending channels.  We could be more
- * clever here by postponing allocation of the real DMA channels to
- * this point, and freeing them when our virtual channel becomes idle.
- *
- * We would then need to deal with 'all channels in-use'
- */
-static void omap_dma_sched(unsigned long data)
-{
-	struct omap_dmadev *d = (struct omap_dmadev *)data;
-	LIST_HEAD(head);
-
-	spin_lock_irq(&d->lock);
-	list_splice_tail_init(&d->pending, &head);
-	spin_unlock_irq(&d->lock);
-
-	while (!list_empty(&head)) {
-		struct omap_chan *c = list_first_entry(&head,
-			struct omap_chan, node);
-
-		spin_lock_irq(&c->vc.lock);
-		list_del_init(&c->node);
-		omap_dma_start_desc(c);
-		spin_unlock_irq(&c->vc.lock);
-	}
-}
-
 static irqreturn_t omap_dma_irq(int irq, void *devid)
 {
 	struct omap_dmadev *od = devid;
@@ -703,8 +673,14 @@ static enum dma_status omap_dma_tx_status(struct dma_chan *chan,
 	struct omap_chan *c = to_omap_dma_chan(chan);
 	struct virt_dma_desc *vd;
 	enum dma_status ret;
+	uint32_t ccr;
 	unsigned long flags;
 
+	ccr = omap_dma_chan_read(c, CCR);
+	/* The channel is no longer active, handle the completion right away */
+	if (!(ccr & CCR_ENABLE))
+		omap_dma_callback(c->dma_ch, 0, c);
+
 	ret = dma_cookie_status(chan, cookie, txstate);
 	if (ret == DMA_COMPLETE || !txstate)
 		return ret;
@@ -719,7 +695,7 @@ static enum dma_status omap_dma_tx_status(struct dma_chan *chan,
 
 		if (d->dir == DMA_MEM_TO_DEV)
 			pos = omap_dma_get_src_pos(c);
-		else if (d->dir == DMA_DEV_TO_MEM)
+		else if (d->dir == DMA_DEV_TO_MEM  || d->dir == DMA_MEM_TO_MEM)
 			pos = omap_dma_get_dst_pos(c);
 		else
 			pos = 0;
@@ -739,22 +715,8 @@ static void omap_dma_issue_pending(struct dma_chan *chan)
 	unsigned long flags;
 
 	spin_lock_irqsave(&c->vc.lock, flags);
-	if (vchan_issue_pending(&c->vc) && !c->desc) {
-		/*
-		 * c->cyclic is used only by audio and in this case the DMA need
-		 * to be started without delay.
-		 */
-		if (!c->cyclic) {
-			struct omap_dmadev *d = to_omap_dma_dev(chan->device);
-			spin_lock(&d->lock);
-			if (list_empty(&c->node))
-				list_add_tail(&c->node, &d->pending);
-			spin_unlock(&d->lock);
-			tasklet_schedule(&d->task);
-		} else {
-			omap_dma_start_desc(c);
-		}
-	}
+	if (vchan_issue_pending(&c->vc) && !c->desc)
+		omap_dma_start_desc(c);
 	spin_unlock_irqrestore(&c->vc.lock, flags);
 }
 
@@ -768,7 +730,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_slave_sg(
 	struct scatterlist *sgent;
 	struct omap_desc *d;
 	dma_addr_t dev_addr;
-	unsigned i, j = 0, es, en, frame_bytes;
+	unsigned i, es, en, frame_bytes;
 	u32 burst;
 
 	if (dir == DMA_DEV_TO_MEM) {
@@ -845,13 +807,12 @@ static struct dma_async_tx_descriptor *omap_dma_prep_slave_sg(
 	en = burst;
 	frame_bytes = es_bytes[es] * en;
 	for_each_sg(sgl, sgent, sglen, i) {
-		d->sg[j].addr = sg_dma_address(sgent);
-		d->sg[j].en = en;
-		d->sg[j].fn = sg_dma_len(sgent) / frame_bytes;
-		j++;
+		d->sg[i].addr = sg_dma_address(sgent);
+		d->sg[i].en = en;
+		d->sg[i].fn = sg_dma_len(sgent) / frame_bytes;
 	}
 
-	d->sglen = j;
+	d->sglen = sglen;
 
 	return vchan_tx_prep(&c->vc, &d->vd, tx_flags);
 }
@@ -1018,17 +979,11 @@ static int omap_dma_slave_config(struct dma_chan *chan, struct dma_slave_config
 static int omap_dma_terminate_all(struct dma_chan *chan)
 {
 	struct omap_chan *c = to_omap_dma_chan(chan);
-	struct omap_dmadev *d = to_omap_dma_dev(c->vc.chan.device);
 	unsigned long flags;
 	LIST_HEAD(head);
 
 	spin_lock_irqsave(&c->vc.lock, flags);
 
-	/* Prevent this channel being scheduled */
-	spin_lock(&d->lock);
-	list_del_init(&c->node);
-	spin_unlock(&d->lock);
-
 	/*
 	 * Stop DMA activity: we assume the callback will not be called
 	 * after omap_dma_stop() returns (even if it does, it will see
@@ -1102,14 +1057,12 @@ static int omap_dma_chan_init(struct omap_dmadev *od)
 	c->reg_map = od->reg_map;
 	c->vc.desc_free = omap_dma_desc_free;
 	vchan_init(&c->vc, &od->ddev);
-	INIT_LIST_HEAD(&c->node);
 
 	return 0;
 }
 
 static void omap_dma_free(struct omap_dmadev *od)
 {
-	tasklet_kill(&od->task);
 	while (!list_empty(&od->ddev.channels)) {
 		struct omap_chan *c = list_first_entry(&od->ddev.channels,
 			struct omap_chan, vc.chan.device_node);
@@ -1165,12 +1118,9 @@ static int omap_dma_probe(struct platform_device *pdev)
 	od->ddev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 	od->ddev.dev = &pdev->dev;
 	INIT_LIST_HEAD(&od->ddev.channels);
-	INIT_LIST_HEAD(&od->pending);
 	spin_lock_init(&od->lock);
 	spin_lock_init(&od->irq_lock);
 
-	tasklet_init(&od->task, omap_dma_sched, (unsigned long)od);
-
 	od->dma_requests = OMAP_SDMA_REQUESTS;
 	if (pdev->dev.of_node && of_property_read_u32(pdev->dev.of_node,
 						      "dma-requests",
@@ -1203,6 +1153,10 @@ static int omap_dma_probe(struct platform_device *pdev)
 			return rc;
 	}
 
+	od->ddev.filter.map = od->plat->slave_map;
+	od->ddev.filter.mapcnt = od->plat->slavecnt;
+	od->ddev.filter.fn = omap_dma_filter_fn;
+
 	rc = dma_async_device_register(&od->ddev);
 	if (rc) {
 		pr_warn("OMAP-DMA: failed to register slave DMA engine device: %d\n",
diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index fc4156afa070..f2a0310ae771 100644
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c
@@ -1414,6 +1414,7 @@ static int pxad_probe(struct platform_device *op)
 	pdev->slave.dst_addr_widths = widths;
 	pdev->slave.directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
 	pdev->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
+	pdev->slave.descriptor_reuse = true;
 
 	pdev->slave.dev = &op->dev;
 	ret = pxad_init_dmadev(op, pdev, dma_channels);
diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
index 9fda65af841e..f32c430eb16c 100644
--- a/drivers/dma/sh/Kconfig
+++ b/drivers/dma/sh/Kconfig
@@ -47,12 +47,6 @@ config RCAR_DMAC
 	  This driver supports the general purpose DMA controller found in the
 	  Renesas R-Car second generation SoCs.
 
-config RCAR_HPB_DMAE
-	tristate "Renesas R-Car HPB DMAC support"
-	depends on SH_DMAE_BASE
-	help
-	  Enable support for the Renesas R-Car series DMA controllers.
-
 config RENESAS_USB_DMAC
 	tristate "Renesas USB-DMA Controller"
 	depends on ARCH_SHMOBILE || COMPILE_TEST
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index 0133e4658196..f1e2fd64f279 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -14,6 +14,5 @@ shdma-objs := $(shdma-y)
 obj-$(CONFIG_SH_DMAE) += shdma.o
 
 obj-$(CONFIG_RCAR_DMAC) += rcar-dmac.o
-obj-$(CONFIG_RCAR_HPB_DMAE) += rcar-hpbdma.o
 obj-$(CONFIG_RENESAS_USB_DMAC) += usb-dmac.o
 obj-$(CONFIG_SUDMAC) += sudmac.o
diff --git a/drivers/dma/sh/rcar-hpbdma.c b/drivers/dma/sh/rcar-hpbdma.c
deleted file mode 100644
index 749f26ecd3b3..000000000000
--- a/drivers/dma/sh/rcar-hpbdma.c
+++ /dev/null
@@ -1,669 +0,0 @@
-/*
- * Copyright (C) 2011-2013 Renesas Electronics Corporation
- * Copyright (C) 2013 Cogent Embedded, Inc.
- *
- * This file is based on the drivers/dma/sh/shdma.c
- *
- * Renesas SuperH DMA Engine support
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * - DMA of SuperH does not have Hardware DMA chain mode.
- * - max DMA size is 16MB.
- *
- */
-
-#include <linux/dmaengine.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/platform_data/dma-rcar-hpbdma.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/shdma-base.h>
-#include <linux/slab.h>
-
-/* DMA channel registers */
-#define HPB_DMAE_DSAR0	0x00
-#define HPB_DMAE_DDAR0	0x04
-#define HPB_DMAE_DTCR0	0x08
-#define HPB_DMAE_DSAR1	0x0C
-#define HPB_DMAE_DDAR1	0x10
-#define HPB_DMAE_DTCR1	0x14
-#define HPB_DMAE_DSASR	0x18
-#define HPB_DMAE_DDASR	0x1C
-#define HPB_DMAE_DTCSR	0x20
-#define HPB_DMAE_DPTR	0x24
-#define HPB_DMAE_DCR	0x28
-#define HPB_DMAE_DCMDR	0x2C
-#define HPB_DMAE_DSTPR	0x30
-#define HPB_DMAE_DSTSR	0x34
-#define HPB_DMAE_DDBGR	0x38
-#define HPB_DMAE_DDBGR2	0x3C
-#define HPB_DMAE_CHAN(n)	(0x40 * (n))
-
-/* DMA command register (DCMDR) bits */
-#define HPB_DMAE_DCMDR_BDOUT	BIT(7)
-#define HPB_DMAE_DCMDR_DQSPD	BIT(6)
-#define HPB_DMAE_DCMDR_DQSPC	BIT(5)
-#define HPB_DMAE_DCMDR_DMSPD	BIT(4)
-#define HPB_DMAE_DCMDR_DMSPC	BIT(3)
-#define HPB_DMAE_DCMDR_DQEND	BIT(2)
-#define HPB_DMAE_DCMDR_DNXT	BIT(1)
-#define HPB_DMAE_DCMDR_DMEN	BIT(0)
-
-/* DMA forced stop register (DSTPR) bits */
-#define HPB_DMAE_DSTPR_DMSTP	BIT(0)
-
-/* DMA status register (DSTSR) bits */
-#define HPB_DMAE_DSTSR_DQSTS	BIT(2)
-#define HPB_DMAE_DSTSR_DMSTS	BIT(0)
-
-/* DMA common registers */
-#define HPB_DMAE_DTIMR		0x00
-#define HPB_DMAE_DINTSR0		0x0C
-#define HPB_DMAE_DINTSR1		0x10
-#define HPB_DMAE_DINTCR0		0x14
-#define HPB_DMAE_DINTCR1		0x18
-#define HPB_DMAE_DINTMR0		0x1C
-#define HPB_DMAE_DINTMR1		0x20
-#define HPB_DMAE_DACTSR0		0x24
-#define HPB_DMAE_DACTSR1		0x28
-#define HPB_DMAE_HSRSTR(n)	(0x40 + (n) * 4)
-#define HPB_DMAE_HPB_DMASPR(n)	(0x140 + (n) * 4)
-#define HPB_DMAE_HPB_DMLVLR0	0x160
-#define HPB_DMAE_HPB_DMLVLR1	0x164
-#define HPB_DMAE_HPB_DMSHPT0	0x168
-#define HPB_DMAE_HPB_DMSHPT1	0x16C
-
-#define HPB_DMA_SLAVE_NUMBER 256
-#define HPB_DMA_TCR_MAX 0x01000000	/* 16 MiB */
-
-struct hpb_dmae_chan {
-	struct shdma_chan shdma_chan;
-	int xfer_mode;			/* DMA transfer mode */
-#define XFER_SINGLE	1
-#define XFER_DOUBLE	2
-	unsigned plane_idx;		/* current DMA information set */
-	bool first_desc;		/* first/next transfer */
-	int xmit_shift;			/* log_2(bytes_per_xfer) */
-	void __iomem *base;
-	const struct hpb_dmae_slave_config *cfg;
-	char dev_id[16];		/* unique name per DMAC of channel */
-	dma_addr_t slave_addr;
-};
-
-struct hpb_dmae_device {
-	struct shdma_dev shdma_dev;
-	spinlock_t reg_lock;		/* comm_reg operation lock */
-	struct hpb_dmae_pdata *pdata;
-	void __iomem *chan_reg;
-	void __iomem *comm_reg;
-	void __iomem *reset_reg;
-	void __iomem *mode_reg;
-};
-
-struct hpb_dmae_regs {
-	u32 sar; /* SAR / source address */
-	u32 dar; /* DAR / destination address */
-	u32 tcr; /* TCR / transfer count */
-};
-
-struct hpb_desc {
-	struct shdma_desc shdma_desc;
-	struct hpb_dmae_regs hw;
-	unsigned plane_idx;
-};
-
-#define to_chan(schan) container_of(schan, struct hpb_dmae_chan, shdma_chan)
-#define to_desc(sdesc) container_of(sdesc, struct hpb_desc, shdma_desc)
-#define to_dev(sc) container_of(sc->shdma_chan.dma_chan.device, \
-				struct hpb_dmae_device, shdma_dev.dma_dev)
-
-static void ch_reg_write(struct hpb_dmae_chan *hpb_dc, u32 data, u32 reg)
-{
-	iowrite32(data, hpb_dc->base + reg);
-}
-
-static u32 ch_reg_read(struct hpb_dmae_chan *hpb_dc, u32 reg)
-{
-	return ioread32(hpb_dc->base + reg);
-}
-
-static void dcmdr_write(struct hpb_dmae_device *hpbdev, u32 data)
-{
-	iowrite32(data, hpbdev->chan_reg + HPB_DMAE_DCMDR);
-}
-
-static void hsrstr_write(struct hpb_dmae_device *hpbdev, u32 ch)
-{
-	iowrite32(0x1, hpbdev->comm_reg + HPB_DMAE_HSRSTR(ch));
-}
-
-static u32 dintsr_read(struct hpb_dmae_device *hpbdev, u32 ch)
-{
-	u32 v;
-
-	if (ch < 32)
-		v = ioread32(hpbdev->comm_reg + HPB_DMAE_DINTSR0) >> ch;
-	else
-		v = ioread32(hpbdev->comm_reg + HPB_DMAE_DINTSR1) >> (ch - 32);
-	return v & 0x1;
-}
-
-static void dintcr_write(struct hpb_dmae_device *hpbdev, u32 ch)
-{
-	if (ch < 32)
-		iowrite32((0x1 << ch), hpbdev->comm_reg + HPB_DMAE_DINTCR0);
-	else
-		iowrite32((0x1 << (ch - 32)),
-			  hpbdev->comm_reg + HPB_DMAE_DINTCR1);
-}
-
-static void asyncmdr_write(struct hpb_dmae_device *hpbdev, u32 data)
-{
-	iowrite32(data, hpbdev->mode_reg);
-}
-
-static u32 asyncmdr_read(struct hpb_dmae_device *hpbdev)
-{
-	return ioread32(hpbdev->mode_reg);
-}
-
-static void hpb_dmae_enable_int(struct hpb_dmae_device *hpbdev, u32 ch)
-{
-	u32 intreg;
-
-	spin_lock_irq(&hpbdev->reg_lock);
-	if (ch < 32) {
-		intreg = ioread32(hpbdev->comm_reg + HPB_DMAE_DINTMR0);
-		iowrite32(BIT(ch) | intreg,
-			  hpbdev->comm_reg + HPB_DMAE_DINTMR0);
-	} else {
-		intreg = ioread32(hpbdev->comm_reg + HPB_DMAE_DINTMR1);
-		iowrite32(BIT(ch - 32) | intreg,
-			  hpbdev->comm_reg + HPB_DMAE_DINTMR1);
-	}
-	spin_unlock_irq(&hpbdev->reg_lock);
-}
-
-static void hpb_dmae_async_reset(struct hpb_dmae_device *hpbdev, u32 data)
-{
-	u32 rstr;
-	int timeout = 10000;	/* 100 ms */
-
-	spin_lock(&hpbdev->reg_lock);
-	rstr = ioread32(hpbdev->reset_reg);
-	rstr |= data;
-	iowrite32(rstr, hpbdev->reset_reg);
-	do {
-		rstr = ioread32(hpbdev->reset_reg);
-		if ((rstr & data) == data)
-			break;
-		udelay(10);
-	} while (timeout--);
-
-	if (timeout < 0)
-		dev_err(hpbdev->shdma_dev.dma_dev.dev,
-			"%s timeout\n", __func__);
-
-	rstr &= ~data;
-	iowrite32(rstr, hpbdev->reset_reg);
-	spin_unlock(&hpbdev->reg_lock);
-}
-
-static void hpb_dmae_set_async_mode(struct hpb_dmae_device *hpbdev,
-				    u32 mask, u32 data)
-{
-	u32 mode;
-
-	spin_lock_irq(&hpbdev->reg_lock);
-	mode = asyncmdr_read(hpbdev);
-	mode &= ~mask;
-	mode |= data;
-	asyncmdr_write(hpbdev, mode);
-	spin_unlock_irq(&hpbdev->reg_lock);
-}
-
-static void hpb_dmae_ctl_stop(struct hpb_dmae_device *hpbdev)
-{
-	dcmdr_write(hpbdev, HPB_DMAE_DCMDR_DQSPD);
-}
-
-static void hpb_dmae_reset(struct hpb_dmae_device *hpbdev)
-{
-	u32 ch;
-
-	for (ch = 0; ch < hpbdev->pdata->num_hw_channels; ch++)
-		hsrstr_write(hpbdev, ch);
-}
-
-static unsigned int calc_xmit_shift(struct hpb_dmae_chan *hpb_chan)
-{
-	struct hpb_dmae_device *hpbdev = to_dev(hpb_chan);
-	struct hpb_dmae_pdata *pdata = hpbdev->pdata;
-	int width = ch_reg_read(hpb_chan, HPB_DMAE_DCR);
-	int i;
-
-	switch (width & (HPB_DMAE_DCR_SPDS_MASK | HPB_DMAE_DCR_DPDS_MASK)) {
-	case HPB_DMAE_DCR_SPDS_8BIT | HPB_DMAE_DCR_DPDS_8BIT:
-	default:
-		i = XMIT_SZ_8BIT;
-		break;
-	case HPB_DMAE_DCR_SPDS_16BIT | HPB_DMAE_DCR_DPDS_16BIT:
-		i = XMIT_SZ_16BIT;
-		break;
-	case HPB_DMAE_DCR_SPDS_32BIT | HPB_DMAE_DCR_DPDS_32BIT:
-		i = XMIT_SZ_32BIT;
-		break;
-	}
-	return pdata->ts_shift[i];
-}
-
-static void hpb_dmae_set_reg(struct hpb_dmae_chan *hpb_chan,
-			     struct hpb_dmae_regs *hw, unsigned plane)
-{
-	ch_reg_write(hpb_chan, hw->sar,
-		     plane ? HPB_DMAE_DSAR1 : HPB_DMAE_DSAR0);
-	ch_reg_write(hpb_chan, hw->dar,
-		     plane ? HPB_DMAE_DDAR1 : HPB_DMAE_DDAR0);
-	ch_reg_write(hpb_chan, hw->tcr >> hpb_chan->xmit_shift,
-		     plane ? HPB_DMAE_DTCR1 : HPB_DMAE_DTCR0);
-}
-
-static void hpb_dmae_start(struct hpb_dmae_chan *hpb_chan, bool next)
-{
-	ch_reg_write(hpb_chan, (next ? HPB_DMAE_DCMDR_DNXT : 0) |
-		     HPB_DMAE_DCMDR_DMEN, HPB_DMAE_DCMDR);
-}
-
-static void hpb_dmae_halt(struct shdma_chan *schan)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-
-	ch_reg_write(chan, HPB_DMAE_DCMDR_DQEND, HPB_DMAE_DCMDR);
-	ch_reg_write(chan, HPB_DMAE_DSTPR_DMSTP, HPB_DMAE_DSTPR);
-
-	chan->plane_idx = 0;
-	chan->first_desc = true;
-}
-
-static const struct hpb_dmae_slave_config *
-hpb_dmae_find_slave(struct hpb_dmae_chan *hpb_chan, int slave_id)
-{
-	struct hpb_dmae_device *hpbdev = to_dev(hpb_chan);
-	struct hpb_dmae_pdata *pdata = hpbdev->pdata;
-	int i;
-
-	if (slave_id >= HPB_DMA_SLAVE_NUMBER)
-		return NULL;
-
-	for (i = 0; i < pdata->num_slaves; i++)
-		if (pdata->slaves[i].id == slave_id)
-			return pdata->slaves + i;
-
-	return NULL;
-}
-
-static void hpb_dmae_start_xfer(struct shdma_chan *schan,
-				struct shdma_desc *sdesc)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-	struct hpb_dmae_device *hpbdev = to_dev(chan);
-	struct hpb_desc *desc = to_desc(sdesc);
-
-	if (chan->cfg->flags & HPB_DMAE_SET_ASYNC_RESET)
-		hpb_dmae_async_reset(hpbdev, chan->cfg->rstr);
-
-	desc->plane_idx = chan->plane_idx;
-	hpb_dmae_set_reg(chan, &desc->hw, chan->plane_idx);
-	hpb_dmae_start(chan, !chan->first_desc);
-
-	if (chan->xfer_mode == XFER_DOUBLE) {
-		chan->plane_idx ^= 1;
-		chan->first_desc = false;
-	}
-}
-
-static bool hpb_dmae_desc_completed(struct shdma_chan *schan,
-				    struct shdma_desc *sdesc)
-{
-	/*
-	 * This is correct since we always have at most single
-	 * outstanding DMA transfer per channel, and by the time
-	 * we get completion interrupt the transfer is completed.
-	 * This will change if we ever use alternating DMA
-	 * information sets and submit two descriptors at once.
-	 */
-	return true;
-}
-
-static bool hpb_dmae_chan_irq(struct shdma_chan *schan, int irq)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-	struct hpb_dmae_device *hpbdev = to_dev(chan);
-	int ch = chan->cfg->dma_ch;
-
-	/* Check Complete DMA Transfer */
-	if (dintsr_read(hpbdev, ch)) {
-		/* Clear Interrupt status */
-		dintcr_write(hpbdev, ch);
-		return true;
-	}
-	return false;
-}
-
-static int hpb_dmae_desc_setup(struct shdma_chan *schan,
-			       struct shdma_desc *sdesc,
-			       dma_addr_t src, dma_addr_t dst, size_t *len)
-{
-	struct hpb_desc *desc = to_desc(sdesc);
-
-	if (*len > (size_t)HPB_DMA_TCR_MAX)
-		*len = (size_t)HPB_DMA_TCR_MAX;
-
-	desc->hw.sar = src;
-	desc->hw.dar = dst;
-	desc->hw.tcr = *len;
-
-	return 0;
-}
-
-static size_t hpb_dmae_get_partial(struct shdma_chan *schan,
-				   struct shdma_desc *sdesc)
-{
-	struct hpb_desc *desc = to_desc(sdesc);
-	struct hpb_dmae_chan *chan = to_chan(schan);
-	u32 tcr = ch_reg_read(chan, desc->plane_idx ?
-			      HPB_DMAE_DTCR1 : HPB_DMAE_DTCR0);
-
-	return (desc->hw.tcr - tcr) << chan->xmit_shift;
-}
-
-static bool hpb_dmae_channel_busy(struct shdma_chan *schan)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-	u32 dstsr = ch_reg_read(chan, HPB_DMAE_DSTSR);
-
-	if (chan->xfer_mode == XFER_DOUBLE)
-		return dstsr & HPB_DMAE_DSTSR_DQSTS;
-	else
-		return dstsr & HPB_DMAE_DSTSR_DMSTS;
-}
-
-static int
-hpb_dmae_alloc_chan_resources(struct hpb_dmae_chan *hpb_chan,
-			      const struct hpb_dmae_slave_config *cfg)
-{
-	struct hpb_dmae_device *hpbdev = to_dev(hpb_chan);
-	struct hpb_dmae_pdata *pdata = hpbdev->pdata;
-	const struct hpb_dmae_channel *channel = pdata->channels;
-	int slave_id = cfg->id;
-	int i, err;
-
-	for (i = 0; i < pdata->num_channels; i++, channel++) {
-		if (channel->s_id == slave_id) {
-			struct device *dev = hpb_chan->shdma_chan.dev;
-
-			hpb_chan->base = hpbdev->chan_reg +
-				HPB_DMAE_CHAN(cfg->dma_ch);
-
-			dev_dbg(dev, "Detected Slave device\n");
-			dev_dbg(dev, " -- slave_id       : 0x%x\n", slave_id);
-			dev_dbg(dev, " -- cfg->dma_ch    : %d\n", cfg->dma_ch);
-			dev_dbg(dev, " -- channel->ch_irq: %d\n",
-				channel->ch_irq);
-			break;
-		}
-	}
-
-	err = shdma_request_irq(&hpb_chan->shdma_chan, channel->ch_irq,
-				IRQF_SHARED, hpb_chan->dev_id);
-	if (err) {
-		dev_err(hpb_chan->shdma_chan.dev,
-			"DMA channel request_irq %d failed with error %d\n",
-			channel->ch_irq, err);
-		return err;
-	}
-
-	hpb_chan->plane_idx = 0;
-	hpb_chan->first_desc = true;
-
-	if ((cfg->dcr & (HPB_DMAE_DCR_CT | HPB_DMAE_DCR_DIP)) == 0) {
-		hpb_chan->xfer_mode = XFER_SINGLE;
-	} else if ((cfg->dcr & (HPB_DMAE_DCR_CT | HPB_DMAE_DCR_DIP)) ==
-		   (HPB_DMAE_DCR_CT | HPB_DMAE_DCR_DIP)) {
-		hpb_chan->xfer_mode = XFER_DOUBLE;
-	} else {
-		dev_err(hpb_chan->shdma_chan.dev, "DCR setting error");
-		return -EINVAL;
-	}
-
-	if (cfg->flags & HPB_DMAE_SET_ASYNC_MODE)
-		hpb_dmae_set_async_mode(hpbdev, cfg->mdm, cfg->mdr);
-	ch_reg_write(hpb_chan, cfg->dcr, HPB_DMAE_DCR);
-	ch_reg_write(hpb_chan, cfg->port, HPB_DMAE_DPTR);
-	hpb_chan->xmit_shift = calc_xmit_shift(hpb_chan);
-	hpb_dmae_enable_int(hpbdev, cfg->dma_ch);
-
-	return 0;
-}
-
-static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id,
-			      dma_addr_t slave_addr, bool try)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-	const struct hpb_dmae_slave_config *sc =
-		hpb_dmae_find_slave(chan, slave_id);
-
-	if (!sc)
-		return -ENODEV;
-	if (try)
-		return 0;
-	chan->cfg = sc;
-	chan->slave_addr = slave_addr ? : sc->addr;
-	return hpb_dmae_alloc_chan_resources(chan, sc);
-}
-
-static void hpb_dmae_setup_xfer(struct shdma_chan *schan, int slave_id)
-{
-}
-
-static dma_addr_t hpb_dmae_slave_addr(struct shdma_chan *schan)
-{
-	struct hpb_dmae_chan *chan = to_chan(schan);
-
-	return chan->slave_addr;
-}
-
-static struct shdma_desc *hpb_dmae_embedded_desc(void *buf, int i)
-{
-	return &((struct hpb_desc *)buf)[i].shdma_desc;
-}
-
-static const struct shdma_ops hpb_dmae_ops = {
-	.desc_completed = hpb_dmae_desc_completed,
-	.halt_channel = hpb_dmae_halt,
-	.channel_busy = hpb_dmae_channel_busy,
-	.slave_addr = hpb_dmae_slave_addr,
-	.desc_setup = hpb_dmae_desc_setup,
-	.set_slave = hpb_dmae_set_slave,
-	.setup_xfer = hpb_dmae_setup_xfer,
-	.start_xfer = hpb_dmae_start_xfer,
-	.embedded_desc = hpb_dmae_embedded_desc,
-	.chan_irq = hpb_dmae_chan_irq,
-	.get_partial = hpb_dmae_get_partial,
-};
-
-static int hpb_dmae_chan_probe(struct hpb_dmae_device *hpbdev, int id)
-{
-	struct shdma_dev *sdev = &hpbdev->shdma_dev;
-	struct platform_device *pdev =
-		to_platform_device(hpbdev->shdma_dev.dma_dev.dev);
-	struct hpb_dmae_chan *new_hpb_chan;
-	struct shdma_chan *schan;
-
-	/* Alloc channel */
-	new_hpb_chan = devm_kzalloc(&pdev->dev,
-				    sizeof(struct hpb_dmae_chan), GFP_KERNEL);
-	if (!new_hpb_chan) {
-		dev_err(hpbdev->shdma_dev.dma_dev.dev,
-			"No free memory for allocating DMA channels!\n");
-		return -ENOMEM;
-	}
-
-	schan = &new_hpb_chan->shdma_chan;
-	schan->max_xfer_len = HPB_DMA_TCR_MAX;
-
-	shdma_chan_probe(sdev, schan, id);
-
-	if (pdev->id >= 0)
-		snprintf(new_hpb_chan->dev_id, sizeof(new_hpb_chan->dev_id),
-			 "hpb-dmae%d.%d", pdev->id, id);
-	else
-		snprintf(new_hpb_chan->dev_id, sizeof(new_hpb_chan->dev_id),
-			 "hpb-dma.%d", id);
-
-	return 0;
-}
-
-static int hpb_dmae_probe(struct platform_device *pdev)
-{
-	const enum dma_slave_buswidth widths = DMA_SLAVE_BUSWIDTH_1_BYTE |
-		DMA_SLAVE_BUSWIDTH_2_BYTES | DMA_SLAVE_BUSWIDTH_4_BYTES;
-	struct hpb_dmae_pdata *pdata = pdev->dev.platform_data;
-	struct hpb_dmae_device *hpbdev;
-	struct dma_device *dma_dev;
-	struct resource *chan, *comm, *rest, *mode, *irq_res;
-	int err, i;
-
-	/* Get platform data */
-	if (!pdata || !pdata->num_channels)
-		return -ENODEV;
-
-	chan = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	comm = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	rest = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	mode = platform_get_resource(pdev, IORESOURCE_MEM, 3);
-
-	irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!irq_res)
-		return -ENODEV;
-
-	hpbdev = devm_kzalloc(&pdev->dev, sizeof(struct hpb_dmae_device),
-			      GFP_KERNEL);
-	if (!hpbdev) {
-		dev_err(&pdev->dev, "Not enough memory\n");
-		return -ENOMEM;
-	}
-
-	hpbdev->chan_reg = devm_ioremap_resource(&pdev->dev, chan);
-	if (IS_ERR(hpbdev->chan_reg))
-		return PTR_ERR(hpbdev->chan_reg);
-
-	hpbdev->comm_reg = devm_ioremap_resource(&pdev->dev, comm);
-	if (IS_ERR(hpbdev->comm_reg))
-		return PTR_ERR(hpbdev->comm_reg);
-
-	hpbdev->reset_reg = devm_ioremap_resource(&pdev->dev, rest);
-	if (IS_ERR(hpbdev->reset_reg))
-		return PTR_ERR(hpbdev->reset_reg);
-
-	hpbdev->mode_reg = devm_ioremap_resource(&pdev->dev, mode);
-	if (IS_ERR(hpbdev->mode_reg))
-		return PTR_ERR(hpbdev->mode_reg);
-
-	dma_dev = &hpbdev->shdma_dev.dma_dev;
-
-	spin_lock_init(&hpbdev->reg_lock);
-
-	/* Platform data */
-	hpbdev->pdata = pdata;
-
-	pm_runtime_enable(&pdev->dev);
-	err = pm_runtime_get_sync(&pdev->dev);
-	if (err < 0)
-		dev_err(&pdev->dev, "%s(): GET = %d\n", __func__, err);
-
-	/* Reset DMA controller */
-	hpb_dmae_reset(hpbdev);
-
-	pm_runtime_put(&pdev->dev);
-
-	dma_cap_set(DMA_MEMCPY, dma_dev->cap_mask);
-	dma_cap_set(DMA_SLAVE, dma_dev->cap_mask);
-	dma_dev->src_addr_widths = widths;
-	dma_dev->dst_addr_widths = widths;
-	dma_dev->directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
-	dma_dev->residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
-
-	hpbdev->shdma_dev.ops = &hpb_dmae_ops;
-	hpbdev->shdma_dev.desc_size = sizeof(struct hpb_desc);
-	err = shdma_init(&pdev->dev, &hpbdev->shdma_dev, pdata->num_channels);
-	if (err < 0)
-		goto error;
-
-	/* Create DMA channels */
-	for (i = 0; i < pdata->num_channels; i++)
-		hpb_dmae_chan_probe(hpbdev, i);
-
-	platform_set_drvdata(pdev, hpbdev);
-	err = dma_async_device_register(dma_dev);
-	if (!err)
-		return 0;
-
-	shdma_cleanup(&hpbdev->shdma_dev);
-error:
-	pm_runtime_disable(&pdev->dev);
-	return err;
-}
-
-static void hpb_dmae_chan_remove(struct hpb_dmae_device *hpbdev)
-{
-	struct shdma_chan *schan;
-	int i;
-
-	shdma_for_each_chan(schan, &hpbdev->shdma_dev, i) {
-		BUG_ON(!schan);
-
-		shdma_chan_remove(schan);
-	}
-}
-
-static int hpb_dmae_remove(struct platform_device *pdev)
-{
-	struct hpb_dmae_device *hpbdev = platform_get_drvdata(pdev);
-
-	dma_async_device_unregister(&hpbdev->shdma_dev.dma_dev);
-
-	pm_runtime_disable(&pdev->dev);
-
-	hpb_dmae_chan_remove(hpbdev);
-
-	return 0;
-}
-
-static void hpb_dmae_shutdown(struct platform_device *pdev)
-{
-	struct hpb_dmae_device *hpbdev = platform_get_drvdata(pdev);
-	hpb_dmae_ctl_stop(hpbdev);
-}
-
-static struct platform_driver hpb_dmae_driver = {
-	.probe		= hpb_dmae_probe,
-	.remove		= hpb_dmae_remove,
-	.shutdown	= hpb_dmae_shutdown,
-	.driver = {
-		.name	= "hpb-dma-engine",
-	},
-};
-module_platform_driver(hpb_dmae_driver);
-
-MODULE_AUTHOR("Max Filippov <max.filippov@cogentembedded.com>");
-MODULE_DESCRIPTION("Renesas HPB DMA Engine driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c
index f1bcc2a163b3..749f1bd5d65d 100644
--- a/drivers/dma/sh/usb-dmac.c
+++ b/drivers/dma/sh/usb-dmac.c
@@ -448,7 +448,7 @@ usb_dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 static int usb_dmac_chan_terminate_all(struct dma_chan *chan)
 {
 	struct usb_dmac_chan *uchan = to_usb_dmac_chan(chan);
-	struct usb_dmac_desc *desc;
+	struct usb_dmac_desc *desc, *_desc;
 	unsigned long flags;
 	LIST_HEAD(head);
 	LIST_HEAD(list);
@@ -459,7 +459,7 @@ static int usb_dmac_chan_terminate_all(struct dma_chan *chan)
 	if (uchan->desc)
 		uchan->desc = NULL;
 	list_splice_init(&uchan->desc_got, &list);
-	list_for_each_entry(desc, &list, node)
+	list_for_each_entry_safe(desc, _desc, &list, node)
 		list_move_tail(&desc->node, &uchan->desc_freed);
 	spin_unlock_irqrestore(&uchan->vc.lock, flags);
 	vchan_dma_desc_free_list(&uchan->vc, &head);
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index dd3e7ba273ad..6fb8307468ab 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -3543,8 +3543,8 @@ static int __init d40_probe(struct platform_device *pdev)
 	struct stedma40_platform_data *plat_data = dev_get_platdata(&pdev->dev);
 	struct device_node *np = pdev->dev.of_node;
 	int ret = -ENOENT;
-	struct d40_base *base = NULL;
-	struct resource *res = NULL;
+	struct d40_base *base;
+	struct resource *res;
 	int num_reserved_chans;
 	u32 val;
 
@@ -3552,17 +3552,17 @@ static int __init d40_probe(struct platform_device *pdev)
 		if (np) {
 			if (d40_of_probe(pdev, np)) {
 				ret = -ENOMEM;
-				goto failure;
+				goto report_failure;
 			}
 		} else {
 			d40_err(&pdev->dev, "No pdata or Device Tree provided\n");
-			goto failure;
+			goto report_failure;
 		}
 	}
 
 	base = d40_hw_detect_init(pdev);
 	if (!base)
-		goto failure;
+		goto report_failure;
 
 	num_reserved_chans = d40_phy_res_init(base);
 
@@ -3693,51 +3693,48 @@ static int __init d40_probe(struct platform_device *pdev)
 	return 0;
 
 failure:
-	if (base) {
-		if (base->desc_slab)
-			kmem_cache_destroy(base->desc_slab);
-		if (base->virtbase)
-			iounmap(base->virtbase);
-
-		if (base->lcla_pool.base && base->plat_data->use_esram_lcla) {
-			iounmap(base->lcla_pool.base);
-			base->lcla_pool.base = NULL;
-		}
+	kmem_cache_destroy(base->desc_slab);
+	if (base->virtbase)
+		iounmap(base->virtbase);
 
-		if (base->lcla_pool.dma_addr)
-			dma_unmap_single(base->dev, base->lcla_pool.dma_addr,
-					 SZ_1K * base->num_phy_chans,
-					 DMA_TO_DEVICE);
-
-		if (!base->lcla_pool.base_unaligned && base->lcla_pool.base)
-			free_pages((unsigned long)base->lcla_pool.base,
-				   base->lcla_pool.pages);
-
-		kfree(base->lcla_pool.base_unaligned);
-
-		if (base->phy_lcpa)
-			release_mem_region(base->phy_lcpa,
-					   base->lcpa_size);
-		if (base->phy_start)
-			release_mem_region(base->phy_start,
-					   base->phy_size);
-		if (base->clk) {
-			clk_disable_unprepare(base->clk);
-			clk_put(base->clk);
-		}
+	if (base->lcla_pool.base && base->plat_data->use_esram_lcla) {
+		iounmap(base->lcla_pool.base);
+		base->lcla_pool.base = NULL;
+	}
 
-		if (base->lcpa_regulator) {
-			regulator_disable(base->lcpa_regulator);
-			regulator_put(base->lcpa_regulator);
-		}
+	if (base->lcla_pool.dma_addr)
+		dma_unmap_single(base->dev, base->lcla_pool.dma_addr,
+				 SZ_1K * base->num_phy_chans,
+				 DMA_TO_DEVICE);
 
-		kfree(base->lcla_pool.alloc_map);
-		kfree(base->lookup_log_chans);
-		kfree(base->lookup_phy_chans);
-		kfree(base->phy_res);
-		kfree(base);
+	if (!base->lcla_pool.base_unaligned && base->lcla_pool.base)
+		free_pages((unsigned long)base->lcla_pool.base,
+			   base->lcla_pool.pages);
+
+	kfree(base->lcla_pool.base_unaligned);
+
+	if (base->phy_lcpa)
+		release_mem_region(base->phy_lcpa,
+				   base->lcpa_size);
+	if (base->phy_start)
+		release_mem_region(base->phy_start,
+				   base->phy_size);
+	if (base->clk) {
+		clk_disable_unprepare(base->clk);
+		clk_put(base->clk);
+	}
+
+	if (base->lcpa_regulator) {
+		regulator_disable(base->lcpa_regulator);
+		regulator_put(base->lcpa_regulator);
 	}
 
+	kfree(base->lcla_pool.alloc_map);
+	kfree(base->lookup_log_chans);
+	kfree(base->lookup_phy_chans);
+	kfree(base->phy_res);
+	kfree(base);
+report_failure:
 	d40_err(&pdev->dev, "probe failed\n");
 	return ret;
 }
diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
new file mode 100644
index 000000000000..047476a1383d
--- /dev/null
+++ b/drivers/dma/stm32-dma.c
@@ -0,0 +1,1141 @@
+/*
+ * Driver for STM32 DMA controller
+ *
+ * Inspired by dma-jz4740.c and tegra20-apb-dma.c
+ *
+ * Copyright (C) M'boumba Cedric Madianga 2015
+ * Author: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_dma.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "virt-dma.h"
+
+#define STM32_DMA_LISR			0x0000 /* DMA Low Int Status Reg */
+#define STM32_DMA_HISR			0x0004 /* DMA High Int Status Reg */
+#define STM32_DMA_LIFCR			0x0008 /* DMA Low Int Flag Clear Reg */
+#define STM32_DMA_HIFCR			0x000c /* DMA High Int Flag Clear Reg */
+#define STM32_DMA_TCI			BIT(5) /* Transfer Complete Interrupt */
+#define STM32_DMA_TEI			BIT(3) /* Transfer Error Interrupt */
+#define STM32_DMA_DMEI			BIT(2) /* Direct Mode Error Interrupt */
+#define STM32_DMA_FEI			BIT(0) /* FIFO Error Interrupt */
+
+/* DMA Stream x Configuration Register */
+#define STM32_DMA_SCR(x)		(0x0010 + 0x18 * (x)) /* x = 0..7 */
+#define STM32_DMA_SCR_REQ(n)		((n & 0x7) << 25)
+#define STM32_DMA_SCR_MBURST_MASK	GENMASK(24, 23)
+#define STM32_DMA_SCR_MBURST(n)	        ((n & 0x3) << 23)
+#define STM32_DMA_SCR_PBURST_MASK	GENMASK(22, 21)
+#define STM32_DMA_SCR_PBURST(n)	        ((n & 0x3) << 21)
+#define STM32_DMA_SCR_PL_MASK		GENMASK(17, 16)
+#define STM32_DMA_SCR_PL(n)		((n & 0x3) << 16)
+#define STM32_DMA_SCR_MSIZE_MASK	GENMASK(14, 13)
+#define STM32_DMA_SCR_MSIZE(n)		((n & 0x3) << 13)
+#define STM32_DMA_SCR_PSIZE_MASK	GENMASK(12, 11)
+#define STM32_DMA_SCR_PSIZE(n)		((n & 0x3) << 11)
+#define STM32_DMA_SCR_PSIZE_GET(n)	((n & STM32_DMA_SCR_PSIZE_MASK) >> 11)
+#define STM32_DMA_SCR_DIR_MASK		GENMASK(7, 6)
+#define STM32_DMA_SCR_DIR(n)		((n & 0x3) << 6)
+#define STM32_DMA_SCR_CT		BIT(19) /* Target in double buffer */
+#define STM32_DMA_SCR_DBM		BIT(18) /* Double Buffer Mode */
+#define STM32_DMA_SCR_PINCOS		BIT(15) /* Peripheral inc offset size */
+#define STM32_DMA_SCR_MINC		BIT(10) /* Memory increment mode */
+#define STM32_DMA_SCR_PINC		BIT(9) /* Peripheral increment mode */
+#define STM32_DMA_SCR_CIRC		BIT(8) /* Circular mode */
+#define STM32_DMA_SCR_PFCTRL		BIT(5) /* Peripheral Flow Controller */
+#define STM32_DMA_SCR_TCIE		BIT(4) /* Transfer Cplete Int Enable*/
+#define STM32_DMA_SCR_TEIE		BIT(2) /* Transfer Error Int Enable */
+#define STM32_DMA_SCR_DMEIE		BIT(1) /* Direct Mode Err Int Enable */
+#define STM32_DMA_SCR_EN		BIT(0) /* Stream Enable */
+#define STM32_DMA_SCR_CFG_MASK		(STM32_DMA_SCR_PINC \
+					| STM32_DMA_SCR_MINC \
+					| STM32_DMA_SCR_PINCOS \
+					| STM32_DMA_SCR_PL_MASK)
+#define STM32_DMA_SCR_IRQ_MASK		(STM32_DMA_SCR_TCIE \
+					| STM32_DMA_SCR_TEIE \
+					| STM32_DMA_SCR_DMEIE)
+
+/* DMA Stream x number of data register */
+#define STM32_DMA_SNDTR(x)		(0x0014 + 0x18 * (x))
+
+/* DMA stream peripheral address register */
+#define STM32_DMA_SPAR(x)		(0x0018 + 0x18 * (x))
+
+/* DMA stream x memory 0 address register */
+#define STM32_DMA_SM0AR(x)		(0x001c + 0x18 * (x))
+
+/* DMA stream x memory 1 address register */
+#define STM32_DMA_SM1AR(x)		(0x0020 + 0x18 * (x))
+
+/* DMA stream x FIFO control register */
+#define STM32_DMA_SFCR(x)		(0x0024 + 0x18 * (x))
+#define STM32_DMA_SFCR_FTH_MASK		GENMASK(1, 0)
+#define STM32_DMA_SFCR_FTH(n)		(n & STM32_DMA_SFCR_FTH_MASK)
+#define STM32_DMA_SFCR_FEIE		BIT(7) /* FIFO error interrupt enable */
+#define STM32_DMA_SFCR_DMDIS		BIT(2) /* Direct mode disable */
+#define STM32_DMA_SFCR_MASK		(STM32_DMA_SFCR_FEIE \
+					| STM32_DMA_SFCR_DMDIS)
+
+/* DMA direction */
+#define STM32_DMA_DEV_TO_MEM		0x00
+#define	STM32_DMA_MEM_TO_DEV		0x01
+#define	STM32_DMA_MEM_TO_MEM		0x02
+
+/* DMA priority level */
+#define STM32_DMA_PRIORITY_LOW		0x00
+#define STM32_DMA_PRIORITY_MEDIUM	0x01
+#define STM32_DMA_PRIORITY_HIGH		0x02
+#define STM32_DMA_PRIORITY_VERY_HIGH	0x03
+
+/* DMA FIFO threshold selection */
+#define STM32_DMA_FIFO_THRESHOLD_1QUARTERFULL		0x00
+#define STM32_DMA_FIFO_THRESHOLD_HALFFULL		0x01
+#define STM32_DMA_FIFO_THRESHOLD_3QUARTERSFULL		0x02
+#define STM32_DMA_FIFO_THRESHOLD_FULL			0x03
+
+#define STM32_DMA_MAX_DATA_ITEMS	0xffff
+#define STM32_DMA_MAX_CHANNELS		0x08
+#define STM32_DMA_MAX_REQUEST_ID	0x08
+#define STM32_DMA_MAX_DATA_PARAM	0x03
+
+enum stm32_dma_width {
+	STM32_DMA_BYTE,
+	STM32_DMA_HALF_WORD,
+	STM32_DMA_WORD,
+};
+
+enum stm32_dma_burst_size {
+	STM32_DMA_BURST_SINGLE,
+	STM32_DMA_BURST_INCR4,
+	STM32_DMA_BURST_INCR8,
+	STM32_DMA_BURST_INCR16,
+};
+
+struct stm32_dma_cfg {
+	u32 channel_id;
+	u32 request_line;
+	u32 stream_config;
+	u32 threshold;
+};
+
+struct stm32_dma_chan_reg {
+	u32 dma_lisr;
+	u32 dma_hisr;
+	u32 dma_lifcr;
+	u32 dma_hifcr;
+	u32 dma_scr;
+	u32 dma_sndtr;
+	u32 dma_spar;
+	u32 dma_sm0ar;
+	u32 dma_sm1ar;
+	u32 dma_sfcr;
+};
+
+struct stm32_dma_sg_req {
+	u32 len;
+	struct stm32_dma_chan_reg chan_reg;
+};
+
+struct stm32_dma_desc {
+	struct virt_dma_desc vdesc;
+	bool cyclic;
+	u32 num_sgs;
+	struct stm32_dma_sg_req sg_req[];
+};
+
+struct stm32_dma_chan {
+	struct virt_dma_chan vchan;
+	bool config_init;
+	bool busy;
+	u32 id;
+	u32 irq;
+	struct stm32_dma_desc *desc;
+	u32 next_sg;
+	struct dma_slave_config	dma_sconfig;
+	struct stm32_dma_chan_reg chan_reg;
+};
+
+struct stm32_dma_device {
+	struct dma_device ddev;
+	void __iomem *base;
+	struct clk *clk;
+	struct reset_control *rst;
+	bool mem2mem;
+	struct stm32_dma_chan chan[STM32_DMA_MAX_CHANNELS];
+};
+
+static struct stm32_dma_device *stm32_dma_get_dev(struct stm32_dma_chan *chan)
+{
+	return container_of(chan->vchan.chan.device, struct stm32_dma_device,
+			    ddev);
+}
+
+static struct stm32_dma_chan *to_stm32_dma_chan(struct dma_chan *c)
+{
+	return container_of(c, struct stm32_dma_chan, vchan.chan);
+}
+
+static struct stm32_dma_desc *to_stm32_dma_desc(struct virt_dma_desc *vdesc)
+{
+	return container_of(vdesc, struct stm32_dma_desc, vdesc);
+}
+
+static struct device *chan2dev(struct stm32_dma_chan *chan)
+{
+	return &chan->vchan.chan.dev->device;
+}
+
+static u32 stm32_dma_read(struct stm32_dma_device *dmadev, u32 reg)
+{
+	return readl_relaxed(dmadev->base + reg);
+}
+
+static void stm32_dma_write(struct stm32_dma_device *dmadev, u32 reg, u32 val)
+{
+	writel_relaxed(val, dmadev->base + reg);
+}
+
+static struct stm32_dma_desc *stm32_dma_alloc_desc(u32 num_sgs)
+{
+	return kzalloc(sizeof(struct stm32_dma_desc) +
+		       sizeof(struct stm32_dma_sg_req) * num_sgs, GFP_NOWAIT);
+}
+
+static int stm32_dma_get_width(struct stm32_dma_chan *chan,
+			       enum dma_slave_buswidth width)
+{
+	switch (width) {
+	case DMA_SLAVE_BUSWIDTH_1_BYTE:
+		return STM32_DMA_BYTE;
+	case DMA_SLAVE_BUSWIDTH_2_BYTES:
+		return STM32_DMA_HALF_WORD;
+	case DMA_SLAVE_BUSWIDTH_4_BYTES:
+		return STM32_DMA_WORD;
+	default:
+		dev_err(chan2dev(chan), "Dma bus width not supported\n");
+		return -EINVAL;
+	}
+}
+
+static int stm32_dma_get_burst(struct stm32_dma_chan *chan, u32 maxburst)
+{
+	switch (maxburst) {
+	case 0:
+	case 1:
+		return STM32_DMA_BURST_SINGLE;
+	case 4:
+		return STM32_DMA_BURST_INCR4;
+	case 8:
+		return STM32_DMA_BURST_INCR8;
+	case 16:
+		return STM32_DMA_BURST_INCR16;
+	default:
+		dev_err(chan2dev(chan), "Dma burst size not supported\n");
+		return -EINVAL;
+	}
+}
+
+static void stm32_dma_set_fifo_config(struct stm32_dma_chan *chan,
+				      u32 src_maxburst, u32 dst_maxburst)
+{
+	chan->chan_reg.dma_sfcr &= ~STM32_DMA_SFCR_MASK;
+	chan->chan_reg.dma_scr &= ~STM32_DMA_SCR_DMEIE;
+
+	if ((!src_maxburst) && (!dst_maxburst)) {
+		/* Using direct mode */
+		chan->chan_reg.dma_scr |= STM32_DMA_SCR_DMEIE;
+	} else {
+		/* Using FIFO mode */
+		chan->chan_reg.dma_sfcr |= STM32_DMA_SFCR_MASK;
+	}
+}
+
+static int stm32_dma_slave_config(struct dma_chan *c,
+				  struct dma_slave_config *config)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+
+	memcpy(&chan->dma_sconfig, config, sizeof(*config));
+
+	chan->config_init = true;
+
+	return 0;
+}
+
+static u32 stm32_dma_irq_status(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 flags, dma_isr;
+
+	/*
+	 * Read "flags" from DMA_xISR register corresponding to the selected
+	 * DMA channel at the correct bit offset inside that register.
+	 *
+	 * If (ch % 4) is 2 or 3, left shift the mask by 16 bits.
+	 * If (ch % 4) is 1 or 3, additionally left shift the mask by 6 bits.
+	 */
+
+	if (chan->id & 4)
+		dma_isr = stm32_dma_read(dmadev, STM32_DMA_HISR);
+	else
+		dma_isr = stm32_dma_read(dmadev, STM32_DMA_LISR);
+
+	flags = dma_isr >> (((chan->id & 2) << 3) | ((chan->id & 1) * 6));
+
+	return flags;
+}
+
+static void stm32_dma_irq_clear(struct stm32_dma_chan *chan, u32 flags)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 dma_ifcr;
+
+	/*
+	 * Write "flags" to the DMA_xIFCR register corresponding to the selected
+	 * DMA channel at the correct bit offset inside that register.
+	 *
+	 * If (ch % 4) is 2 or 3, left shift the mask by 16 bits.
+	 * If (ch % 4) is 1 or 3, additionally left shift the mask by 6 bits.
+	 */
+	dma_ifcr = flags << (((chan->id & 2) << 3) | ((chan->id & 1) * 6));
+
+	if (chan->id & 4)
+		stm32_dma_write(dmadev, STM32_DMA_HIFCR, dma_ifcr);
+	else
+		stm32_dma_write(dmadev, STM32_DMA_LIFCR, dma_ifcr);
+}
+
+static int stm32_dma_disable_chan(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	unsigned long timeout = jiffies + msecs_to_jiffies(5000);
+	u32 dma_scr, id;
+
+	id = chan->id;
+	dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
+
+	if (dma_scr & STM32_DMA_SCR_EN) {
+		dma_scr &= ~STM32_DMA_SCR_EN;
+		stm32_dma_write(dmadev, STM32_DMA_SCR(id), dma_scr);
+
+		do {
+			dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
+			dma_scr &= STM32_DMA_SCR_EN;
+			if (!dma_scr)
+				break;
+
+			if (time_after_eq(jiffies, timeout)) {
+				dev_err(chan2dev(chan), "%s: timeout!\n",
+					__func__);
+				return -EBUSY;
+			}
+			cond_resched();
+		} while (1);
+	}
+
+	return 0;
+}
+
+static void stm32_dma_stop(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 dma_scr, dma_sfcr, status;
+	int ret;
+
+	/* Disable interrupts */
+	dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
+	dma_scr &= ~STM32_DMA_SCR_IRQ_MASK;
+	stm32_dma_write(dmadev, STM32_DMA_SCR(chan->id), dma_scr);
+	dma_sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
+	dma_sfcr &= ~STM32_DMA_SFCR_FEIE;
+	stm32_dma_write(dmadev, STM32_DMA_SFCR(chan->id), dma_sfcr);
+
+	/* Disable DMA */
+	ret = stm32_dma_disable_chan(chan);
+	if (ret < 0)
+		return;
+
+	/* Clear interrupt status if it is there */
+	status = stm32_dma_irq_status(chan);
+	if (status) {
+		dev_dbg(chan2dev(chan), "%s(): clearing interrupt: 0x%08x\n",
+			__func__, status);
+		stm32_dma_irq_clear(chan, status);
+	}
+
+	chan->busy = false;
+}
+
+static int stm32_dma_terminate_all(struct dma_chan *c)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	unsigned long flags;
+	LIST_HEAD(head);
+
+	spin_lock_irqsave(&chan->vchan.lock, flags);
+
+	if (chan->busy) {
+		stm32_dma_stop(chan);
+		chan->desc = NULL;
+	}
+
+	vchan_get_all_descriptors(&chan->vchan, &head);
+	spin_unlock_irqrestore(&chan->vchan.lock, flags);
+	vchan_dma_desc_free_list(&chan->vchan, &head);
+
+	return 0;
+}
+
+static void stm32_dma_dump_reg(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
+	u32 ndtr = stm32_dma_read(dmadev, STM32_DMA_SNDTR(chan->id));
+	u32 spar = stm32_dma_read(dmadev, STM32_DMA_SPAR(chan->id));
+	u32 sm0ar = stm32_dma_read(dmadev, STM32_DMA_SM0AR(chan->id));
+	u32 sm1ar = stm32_dma_read(dmadev, STM32_DMA_SM1AR(chan->id));
+	u32 sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
+
+	dev_dbg(chan2dev(chan), "SCR:   0x%08x\n", scr);
+	dev_dbg(chan2dev(chan), "NDTR:  0x%08x\n", ndtr);
+	dev_dbg(chan2dev(chan), "SPAR:  0x%08x\n", spar);
+	dev_dbg(chan2dev(chan), "SM0AR: 0x%08x\n", sm0ar);
+	dev_dbg(chan2dev(chan), "SM1AR: 0x%08x\n", sm1ar);
+	dev_dbg(chan2dev(chan), "SFCR:  0x%08x\n", sfcr);
+}
+
+static int stm32_dma_start_transfer(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	struct virt_dma_desc *vdesc;
+	struct stm32_dma_sg_req *sg_req;
+	struct stm32_dma_chan_reg *reg;
+	u32 status;
+	int ret;
+
+	ret = stm32_dma_disable_chan(chan);
+	if (ret < 0)
+		return ret;
+
+	if (!chan->desc) {
+		vdesc = vchan_next_desc(&chan->vchan);
+		if (!vdesc)
+			return -EPERM;
+
+		chan->desc = to_stm32_dma_desc(vdesc);
+		chan->next_sg = 0;
+	}
+
+	if (chan->next_sg == chan->desc->num_sgs)
+		chan->next_sg = 0;
+
+	sg_req = &chan->desc->sg_req[chan->next_sg];
+	reg = &sg_req->chan_reg;
+
+	stm32_dma_write(dmadev, STM32_DMA_SCR(chan->id), reg->dma_scr);
+	stm32_dma_write(dmadev, STM32_DMA_SPAR(chan->id), reg->dma_spar);
+	stm32_dma_write(dmadev, STM32_DMA_SM0AR(chan->id), reg->dma_sm0ar);
+	stm32_dma_write(dmadev, STM32_DMA_SFCR(chan->id), reg->dma_sfcr);
+	stm32_dma_write(dmadev, STM32_DMA_SM1AR(chan->id), reg->dma_sm1ar);
+	stm32_dma_write(dmadev, STM32_DMA_SNDTR(chan->id), reg->dma_sndtr);
+
+	chan->next_sg++;
+
+	/* Clear interrupt status if it is there */
+	status = stm32_dma_irq_status(chan);
+	if (status)
+		stm32_dma_irq_clear(chan, status);
+
+	stm32_dma_dump_reg(chan);
+
+	/* Start DMA */
+	reg->dma_scr |= STM32_DMA_SCR_EN;
+	stm32_dma_write(dmadev, STM32_DMA_SCR(chan->id), reg->dma_scr);
+
+	chan->busy = true;
+
+	return 0;
+}
+
+static void stm32_dma_configure_next_sg(struct stm32_dma_chan *chan)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	struct stm32_dma_sg_req *sg_req;
+	u32 dma_scr, dma_sm0ar, dma_sm1ar, id;
+
+	id = chan->id;
+	dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
+
+	if (dma_scr & STM32_DMA_SCR_DBM) {
+		if (chan->next_sg == chan->desc->num_sgs)
+			chan->next_sg = 0;
+
+		sg_req = &chan->desc->sg_req[chan->next_sg];
+
+		if (dma_scr & STM32_DMA_SCR_CT) {
+			dma_sm0ar = sg_req->chan_reg.dma_sm0ar;
+			stm32_dma_write(dmadev, STM32_DMA_SM0AR(id), dma_sm0ar);
+			dev_dbg(chan2dev(chan), "CT=1 <=> SM0AR: 0x%08x\n",
+				stm32_dma_read(dmadev, STM32_DMA_SM0AR(id)));
+		} else {
+			dma_sm1ar = sg_req->chan_reg.dma_sm1ar;
+			stm32_dma_write(dmadev, STM32_DMA_SM1AR(id), dma_sm1ar);
+			dev_dbg(chan2dev(chan), "CT=0 <=> SM1AR: 0x%08x\n",
+				stm32_dma_read(dmadev, STM32_DMA_SM1AR(id)));
+		}
+
+		chan->next_sg++;
+	}
+}
+
+static void stm32_dma_handle_chan_done(struct stm32_dma_chan *chan)
+{
+	if (chan->desc) {
+		if (chan->desc->cyclic) {
+			vchan_cyclic_callback(&chan->desc->vdesc);
+			stm32_dma_configure_next_sg(chan);
+		} else {
+			chan->busy = false;
+			if (chan->next_sg == chan->desc->num_sgs) {
+				list_del(&chan->desc->vdesc.node);
+				vchan_cookie_complete(&chan->desc->vdesc);
+				chan->desc = NULL;
+			}
+			stm32_dma_start_transfer(chan);
+		}
+	}
+}
+
+static irqreturn_t stm32_dma_chan_irq(int irq, void *devid)
+{
+	struct stm32_dma_chan *chan = devid;
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 status, scr, sfcr;
+
+	spin_lock(&chan->vchan.lock);
+
+	status = stm32_dma_irq_status(chan);
+	scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
+	sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
+
+	if ((status & STM32_DMA_TCI) && (scr & STM32_DMA_SCR_TCIE)) {
+		stm32_dma_irq_clear(chan, STM32_DMA_TCI);
+		stm32_dma_handle_chan_done(chan);
+
+	} else {
+		stm32_dma_irq_clear(chan, status);
+		dev_err(chan2dev(chan), "DMA error: status=0x%08x\n", status);
+	}
+
+	spin_unlock(&chan->vchan.lock);
+
+	return IRQ_HANDLED;
+}
+
+static void stm32_dma_issue_pending(struct dma_chan *c)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&chan->vchan.lock, flags);
+	if (!chan->busy) {
+		if (vchan_issue_pending(&chan->vchan) && !chan->desc) {
+			ret = stm32_dma_start_transfer(chan);
+			if ((!ret) && (chan->desc->cyclic))
+				stm32_dma_configure_next_sg(chan);
+		}
+	}
+	spin_unlock_irqrestore(&chan->vchan.lock, flags);
+}
+
+static int stm32_dma_set_xfer_param(struct stm32_dma_chan *chan,
+				    enum dma_transfer_direction direction,
+				    enum dma_slave_buswidth *buswidth)
+{
+	enum dma_slave_buswidth src_addr_width, dst_addr_width;
+	int src_bus_width, dst_bus_width;
+	int src_burst_size, dst_burst_size;
+	u32 src_maxburst, dst_maxburst;
+	dma_addr_t src_addr, dst_addr;
+	u32 dma_scr = 0;
+
+	src_addr_width = chan->dma_sconfig.src_addr_width;
+	dst_addr_width = chan->dma_sconfig.dst_addr_width;
+	src_maxburst = chan->dma_sconfig.src_maxburst;
+	dst_maxburst = chan->dma_sconfig.dst_maxburst;
+	src_addr = chan->dma_sconfig.src_addr;
+	dst_addr = chan->dma_sconfig.dst_addr;
+
+	switch (direction) {
+	case DMA_MEM_TO_DEV:
+		dst_bus_width = stm32_dma_get_width(chan, dst_addr_width);
+		if (dst_bus_width < 0)
+			return dst_bus_width;
+
+		dst_burst_size = stm32_dma_get_burst(chan, dst_maxburst);
+		if (dst_burst_size < 0)
+			return dst_burst_size;
+
+		if (!src_addr_width)
+			src_addr_width = dst_addr_width;
+
+		src_bus_width = stm32_dma_get_width(chan, src_addr_width);
+		if (src_bus_width < 0)
+			return src_bus_width;
+
+		src_burst_size = stm32_dma_get_burst(chan, src_maxburst);
+		if (src_burst_size < 0)
+			return src_burst_size;
+
+		dma_scr = STM32_DMA_SCR_DIR(STM32_DMA_MEM_TO_DEV) |
+			STM32_DMA_SCR_PSIZE(dst_bus_width) |
+			STM32_DMA_SCR_MSIZE(src_bus_width) |
+			STM32_DMA_SCR_PBURST(dst_burst_size) |
+			STM32_DMA_SCR_MBURST(src_burst_size);
+
+		chan->chan_reg.dma_spar = chan->dma_sconfig.dst_addr;
+		*buswidth = dst_addr_width;
+		break;
+
+	case DMA_DEV_TO_MEM:
+		src_bus_width = stm32_dma_get_width(chan, src_addr_width);
+		if (src_bus_width < 0)
+			return src_bus_width;
+
+		src_burst_size = stm32_dma_get_burst(chan, src_maxburst);
+		if (src_burst_size < 0)
+			return src_burst_size;
+
+		if (!dst_addr_width)
+			dst_addr_width = src_addr_width;
+
+		dst_bus_width = stm32_dma_get_width(chan, dst_addr_width);
+		if (dst_bus_width < 0)
+			return dst_bus_width;
+
+		dst_burst_size = stm32_dma_get_burst(chan, dst_maxburst);
+		if (dst_burst_size < 0)
+			return dst_burst_size;
+
+		dma_scr = STM32_DMA_SCR_DIR(STM32_DMA_DEV_TO_MEM) |
+			STM32_DMA_SCR_PSIZE(src_bus_width) |
+			STM32_DMA_SCR_MSIZE(dst_bus_width) |
+			STM32_DMA_SCR_PBURST(src_burst_size) |
+			STM32_DMA_SCR_MBURST(dst_burst_size);
+
+		chan->chan_reg.dma_spar = chan->dma_sconfig.src_addr;
+		*buswidth = chan->dma_sconfig.src_addr_width;
+		break;
+
+	default:
+		dev_err(chan2dev(chan), "Dma direction is not supported\n");
+		return -EINVAL;
+	}
+
+	stm32_dma_set_fifo_config(chan, src_maxburst, dst_maxburst);
+
+	chan->chan_reg.dma_scr &= ~(STM32_DMA_SCR_DIR_MASK |
+			STM32_DMA_SCR_PSIZE_MASK | STM32_DMA_SCR_MSIZE_MASK |
+			STM32_DMA_SCR_PBURST_MASK | STM32_DMA_SCR_MBURST_MASK);
+	chan->chan_reg.dma_scr |= dma_scr;
+
+	return 0;
+}
+
+static void stm32_dma_clear_reg(struct stm32_dma_chan_reg *regs)
+{
+	memset(regs, 0, sizeof(struct stm32_dma_chan_reg));
+}
+
+static struct dma_async_tx_descriptor *stm32_dma_prep_slave_sg(
+	struct dma_chan *c, struct scatterlist *sgl,
+	u32 sg_len, enum dma_transfer_direction direction,
+	unsigned long flags, void *context)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	struct stm32_dma_desc *desc;
+	struct scatterlist *sg;
+	enum dma_slave_buswidth buswidth;
+	u32 nb_data_items;
+	int i, ret;
+
+	if (!chan->config_init) {
+		dev_err(chan2dev(chan), "dma channel is not configured\n");
+		return NULL;
+	}
+
+	if (sg_len < 1) {
+		dev_err(chan2dev(chan), "Invalid segment length %d\n", sg_len);
+		return NULL;
+	}
+
+	desc = stm32_dma_alloc_desc(sg_len);
+	if (!desc)
+		return NULL;
+
+	ret = stm32_dma_set_xfer_param(chan, direction, &buswidth);
+	if (ret < 0)
+		goto err;
+
+	/* Set peripheral flow controller */
+	if (chan->dma_sconfig.device_fc)
+		chan->chan_reg.dma_scr |= STM32_DMA_SCR_PFCTRL;
+	else
+		chan->chan_reg.dma_scr &= ~STM32_DMA_SCR_PFCTRL;
+
+	for_each_sg(sgl, sg, sg_len, i) {
+		desc->sg_req[i].len = sg_dma_len(sg);
+
+		nb_data_items = desc->sg_req[i].len / buswidth;
+		if (nb_data_items > STM32_DMA_MAX_DATA_ITEMS) {
+			dev_err(chan2dev(chan), "nb items not supported\n");
+			goto err;
+		}
+
+		stm32_dma_clear_reg(&desc->sg_req[i].chan_reg);
+		desc->sg_req[i].chan_reg.dma_scr = chan->chan_reg.dma_scr;
+		desc->sg_req[i].chan_reg.dma_sfcr = chan->chan_reg.dma_sfcr;
+		desc->sg_req[i].chan_reg.dma_spar = chan->chan_reg.dma_spar;
+		desc->sg_req[i].chan_reg.dma_sm0ar = sg_dma_address(sg);
+		desc->sg_req[i].chan_reg.dma_sm1ar = sg_dma_address(sg);
+		desc->sg_req[i].chan_reg.dma_sndtr = nb_data_items;
+	}
+
+	desc->num_sgs = sg_len;
+	desc->cyclic = false;
+
+	return vchan_tx_prep(&chan->vchan, &desc->vdesc, flags);
+
+err:
+	kfree(desc);
+	return NULL;
+}
+
+static struct dma_async_tx_descriptor *stm32_dma_prep_dma_cyclic(
+	struct dma_chan *c, dma_addr_t buf_addr, size_t buf_len,
+	size_t period_len, enum dma_transfer_direction direction,
+	unsigned long flags)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	struct stm32_dma_desc *desc;
+	enum dma_slave_buswidth buswidth;
+	u32 num_periods, nb_data_items;
+	int i, ret;
+
+	if (!buf_len || !period_len) {
+		dev_err(chan2dev(chan), "Invalid buffer/period len\n");
+		return NULL;
+	}
+
+	if (!chan->config_init) {
+		dev_err(chan2dev(chan), "dma channel is not configured\n");
+		return NULL;
+	}
+
+	if (buf_len % period_len) {
+		dev_err(chan2dev(chan), "buf_len not multiple of period_len\n");
+		return NULL;
+	}
+
+	/*
+	 * We allow to take more number of requests till DMA is
+	 * not started. The driver will loop over all requests.
+	 * Once DMA is started then new requests can be queued only after
+	 * terminating the DMA.
+	 */
+	if (chan->busy) {
+		dev_err(chan2dev(chan), "Request not allowed when dma busy\n");
+		return NULL;
+	}
+
+	ret = stm32_dma_set_xfer_param(chan, direction, &buswidth);
+	if (ret < 0)
+		return NULL;
+
+	nb_data_items = period_len / buswidth;
+	if (nb_data_items > STM32_DMA_MAX_DATA_ITEMS) {
+		dev_err(chan2dev(chan), "number of items not supported\n");
+		return NULL;
+	}
+
+	/*  Enable Circular mode or double buffer mode */
+	if (buf_len == period_len)
+		chan->chan_reg.dma_scr |= STM32_DMA_SCR_CIRC;
+	else
+		chan->chan_reg.dma_scr |= STM32_DMA_SCR_DBM;
+
+	/* Clear periph ctrl if client set it */
+	chan->chan_reg.dma_scr &= ~STM32_DMA_SCR_PFCTRL;
+
+	num_periods = buf_len / period_len;
+
+	desc = stm32_dma_alloc_desc(num_periods);
+	if (!desc)
+		return NULL;
+
+	for (i = 0; i < num_periods; i++) {
+		desc->sg_req[i].len = period_len;
+
+		stm32_dma_clear_reg(&desc->sg_req[i].chan_reg);
+		desc->sg_req[i].chan_reg.dma_scr = chan->chan_reg.dma_scr;
+		desc->sg_req[i].chan_reg.dma_sfcr = chan->chan_reg.dma_sfcr;
+		desc->sg_req[i].chan_reg.dma_spar = chan->chan_reg.dma_spar;
+		desc->sg_req[i].chan_reg.dma_sm0ar = buf_addr;
+		desc->sg_req[i].chan_reg.dma_sm1ar = buf_addr;
+		desc->sg_req[i].chan_reg.dma_sndtr = nb_data_items;
+		buf_addr += period_len;
+	}
+
+	desc->num_sgs = num_periods;
+	desc->cyclic = true;
+
+	return vchan_tx_prep(&chan->vchan, &desc->vdesc, flags);
+}
+
+static struct dma_async_tx_descriptor *stm32_dma_prep_dma_memcpy(
+	struct dma_chan *c, dma_addr_t dest,
+	dma_addr_t src, size_t len, unsigned long flags)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	u32 num_sgs;
+	struct stm32_dma_desc *desc;
+	size_t xfer_count, offset;
+	int i;
+
+	num_sgs = DIV_ROUND_UP(len, STM32_DMA_MAX_DATA_ITEMS);
+	desc = stm32_dma_alloc_desc(num_sgs);
+	if (!desc)
+		return NULL;
+
+	for (offset = 0, i = 0; offset < len; offset += xfer_count, i++) {
+		xfer_count = min_t(size_t, len - offset,
+				   STM32_DMA_MAX_DATA_ITEMS);
+
+		desc->sg_req[i].len = xfer_count;
+
+		stm32_dma_clear_reg(&desc->sg_req[i].chan_reg);
+		desc->sg_req[i].chan_reg.dma_scr =
+			STM32_DMA_SCR_DIR(STM32_DMA_MEM_TO_MEM) |
+			STM32_DMA_SCR_MINC |
+			STM32_DMA_SCR_PINC |
+			STM32_DMA_SCR_TCIE |
+			STM32_DMA_SCR_TEIE;
+		desc->sg_req[i].chan_reg.dma_sfcr = STM32_DMA_SFCR_DMDIS |
+			STM32_DMA_SFCR_FTH(STM32_DMA_FIFO_THRESHOLD_FULL) |
+			STM32_DMA_SFCR_FEIE;
+		desc->sg_req[i].chan_reg.dma_spar = src + offset;
+		desc->sg_req[i].chan_reg.dma_sm0ar = dest + offset;
+		desc->sg_req[i].chan_reg.dma_sndtr = xfer_count;
+	}
+
+	desc->num_sgs = num_sgs;
+	desc->cyclic = false;
+
+	return vchan_tx_prep(&chan->vchan, &desc->vdesc, flags);
+}
+
+static size_t stm32_dma_desc_residue(struct stm32_dma_chan *chan,
+				     struct stm32_dma_desc *desc,
+				     u32 next_sg)
+{
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	u32 dma_scr, width, residue, count;
+	int i;
+
+	residue = 0;
+
+	for (i = next_sg; i < desc->num_sgs; i++)
+		residue += desc->sg_req[i].len;
+
+	if (next_sg != 0) {
+		dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
+		width = STM32_DMA_SCR_PSIZE_GET(dma_scr);
+		count = stm32_dma_read(dmadev, STM32_DMA_SNDTR(chan->id));
+
+		residue += count << width;
+	}
+
+	return residue;
+}
+
+static enum dma_status stm32_dma_tx_status(struct dma_chan *c,
+					   dma_cookie_t cookie,
+					   struct dma_tx_state *state)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	struct virt_dma_desc *vdesc;
+	enum dma_status status;
+	unsigned long flags;
+	u32 residue;
+
+	status = dma_cookie_status(c, cookie, state);
+	if ((status == DMA_COMPLETE) || (!state))
+		return status;
+
+	spin_lock_irqsave(&chan->vchan.lock, flags);
+	vdesc = vchan_find_desc(&chan->vchan, cookie);
+	if (cookie == chan->desc->vdesc.tx.cookie) {
+		residue = stm32_dma_desc_residue(chan, chan->desc,
+						 chan->next_sg);
+	} else if (vdesc) {
+		residue = stm32_dma_desc_residue(chan,
+						 to_stm32_dma_desc(vdesc), 0);
+	} else {
+		residue = 0;
+	}
+
+	dma_set_residue(state, residue);
+
+	spin_unlock_irqrestore(&chan->vchan.lock, flags);
+
+	return status;
+}
+
+static int stm32_dma_alloc_chan_resources(struct dma_chan *c)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	int ret;
+
+	chan->config_init = false;
+	ret = clk_prepare_enable(dmadev->clk);
+	if (ret < 0) {
+		dev_err(chan2dev(chan), "clk_prepare_enable failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = stm32_dma_disable_chan(chan);
+	if (ret < 0)
+		clk_disable_unprepare(dmadev->clk);
+
+	return ret;
+}
+
+static void stm32_dma_free_chan_resources(struct dma_chan *c)
+{
+	struct stm32_dma_chan *chan = to_stm32_dma_chan(c);
+	struct stm32_dma_device *dmadev = stm32_dma_get_dev(chan);
+	unsigned long flags;
+
+	dev_dbg(chan2dev(chan), "Freeing channel %d\n", chan->id);
+
+	if (chan->busy) {
+		spin_lock_irqsave(&chan->vchan.lock, flags);
+		stm32_dma_stop(chan);
+		chan->desc = NULL;
+		spin_unlock_irqrestore(&chan->vchan.lock, flags);
+	}
+
+	clk_disable_unprepare(dmadev->clk);
+
+	vchan_free_chan_resources(to_virt_chan(c));
+}
+
+static void stm32_dma_desc_free(struct virt_dma_desc *vdesc)
+{
+	kfree(container_of(vdesc, struct stm32_dma_desc, vdesc));
+}
+
+void stm32_dma_set_config(struct stm32_dma_chan *chan,
+			  struct stm32_dma_cfg *cfg)
+{
+	stm32_dma_clear_reg(&chan->chan_reg);
+
+	chan->chan_reg.dma_scr = cfg->stream_config & STM32_DMA_SCR_CFG_MASK;
+	chan->chan_reg.dma_scr |= STM32_DMA_SCR_REQ(cfg->request_line);
+
+	/* Enable Interrupts  */
+	chan->chan_reg.dma_scr |= STM32_DMA_SCR_TEIE | STM32_DMA_SCR_TCIE;
+
+	chan->chan_reg.dma_sfcr = cfg->threshold & STM32_DMA_SFCR_FTH_MASK;
+}
+
+static struct dma_chan *stm32_dma_of_xlate(struct of_phandle_args *dma_spec,
+					   struct of_dma *ofdma)
+{
+	struct stm32_dma_device *dmadev = ofdma->of_dma_data;
+	struct stm32_dma_cfg cfg;
+	struct stm32_dma_chan *chan;
+	struct dma_chan *c;
+
+	if (dma_spec->args_count < 3)
+		return NULL;
+
+	cfg.channel_id = dma_spec->args[0];
+	cfg.request_line = dma_spec->args[1];
+	cfg.stream_config = dma_spec->args[2];
+	cfg.threshold = 0;
+
+	if ((cfg.channel_id >= STM32_DMA_MAX_CHANNELS) || (cfg.request_line >=
+				STM32_DMA_MAX_REQUEST_ID))
+		return NULL;
+
+	if (dma_spec->args_count > 3)
+		cfg.threshold = dma_spec->args[3];
+
+	chan = &dmadev->chan[cfg.channel_id];
+
+	c = dma_get_slave_channel(&chan->vchan.chan);
+	if (c)
+		stm32_dma_set_config(chan, &cfg);
+
+	return c;
+}
+
+static const struct of_device_id stm32_dma_of_match[] = {
+	{ .compatible = "st,stm32-dma", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, stm32_dma_of_match);
+
+static int stm32_dma_probe(struct platform_device *pdev)
+{
+	struct stm32_dma_chan *chan;
+	struct stm32_dma_device *dmadev;
+	struct dma_device *dd;
+	const struct of_device_id *match;
+	struct resource *res;
+	int i, ret;
+
+	match = of_match_device(stm32_dma_of_match, &pdev->dev);
+	if (!match) {
+		dev_err(&pdev->dev, "Error: No device match found\n");
+		return -ENODEV;
+	}
+
+	dmadev = devm_kzalloc(&pdev->dev, sizeof(*dmadev), GFP_KERNEL);
+	if (!dmadev)
+		return -ENOMEM;
+
+	dd = &dmadev->ddev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dmadev->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dmadev->base))
+		return PTR_ERR(dmadev->base);
+
+	dmadev->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(dmadev->clk)) {
+		dev_err(&pdev->dev, "Error: Missing controller clock\n");
+		return PTR_ERR(dmadev->clk);
+	}
+
+	dmadev->mem2mem = of_property_read_bool(pdev->dev.of_node,
+						"st,mem2mem");
+
+	dmadev->rst = devm_reset_control_get(&pdev->dev, NULL);
+	if (!IS_ERR(dmadev->rst)) {
+		reset_control_assert(dmadev->rst);
+		udelay(2);
+		reset_control_deassert(dmadev->rst);
+	}
+
+	dma_cap_set(DMA_SLAVE, dd->cap_mask);
+	dma_cap_set(DMA_PRIVATE, dd->cap_mask);
+	dma_cap_set(DMA_CYCLIC, dd->cap_mask);
+	dd->device_alloc_chan_resources = stm32_dma_alloc_chan_resources;
+	dd->device_free_chan_resources = stm32_dma_free_chan_resources;
+	dd->device_tx_status = stm32_dma_tx_status;
+	dd->device_issue_pending = stm32_dma_issue_pending;
+	dd->device_prep_slave_sg = stm32_dma_prep_slave_sg;
+	dd->device_prep_dma_cyclic = stm32_dma_prep_dma_cyclic;
+	dd->device_config = stm32_dma_slave_config;
+	dd->device_terminate_all = stm32_dma_terminate_all;
+	dd->src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+		BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+		BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+	dd->dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+		BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+		BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+	dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
+	dd->dev = &pdev->dev;
+	INIT_LIST_HEAD(&dd->channels);
+
+	if (dmadev->mem2mem) {
+		dma_cap_set(DMA_MEMCPY, dd->cap_mask);
+		dd->device_prep_dma_memcpy = stm32_dma_prep_dma_memcpy;
+		dd->directions |= BIT(DMA_MEM_TO_MEM);
+	}
+
+	for (i = 0; i < STM32_DMA_MAX_CHANNELS; i++) {
+		chan = &dmadev->chan[i];
+		chan->id = i;
+		chan->vchan.desc_free = stm32_dma_desc_free;
+		vchan_init(&chan->vchan, dd);
+	}
+
+	ret = dma_async_device_register(dd);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < STM32_DMA_MAX_CHANNELS; i++) {
+		chan = &dmadev->chan[i];
+		res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
+		if (!res) {
+			ret = -EINVAL;
+			dev_err(&pdev->dev, "No irq resource for chan %d\n", i);
+			goto err_unregister;
+		}
+		chan->irq = res->start;
+		ret = devm_request_irq(&pdev->dev, chan->irq,
+				       stm32_dma_chan_irq, 0,
+				       dev_name(chan2dev(chan)), chan);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"request_irq failed with err %d channel %d\n",
+				ret, i);
+			goto err_unregister;
+		}
+	}
+
+	ret = of_dma_controller_register(pdev->dev.of_node,
+					 stm32_dma_of_xlate, dmadev);
+	if (ret < 0) {
+		dev_err(&pdev->dev,
+			"STM32 DMA DMA OF registration failed %d\n", ret);
+		goto err_unregister;
+	}
+
+	platform_set_drvdata(pdev, dmadev);
+
+	dev_info(&pdev->dev, "STM32 DMA driver registered\n");
+
+	return 0;
+
+err_unregister:
+	dma_async_device_unregister(dd);
+
+	return ret;
+}
+
+static struct platform_driver stm32_dma_driver = {
+	.driver = {
+		.name = "stm32-dma",
+		.of_match_table = stm32_dma_of_match,
+	},
+};
+
+static int __init stm32_dma_init(void)
+{
+	return platform_driver_probe(&stm32_dma_driver, stm32_dma_probe);
+}
+subsys_initcall(stm32_dma_init);
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index c8f79dcaaee8..935da8192f59 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -296,7 +296,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get(
 	spin_unlock_irqrestore(&tdc->lock, flags);
 
 	/* Allocate DMA desc */
-	dma_desc = kzalloc(sizeof(*dma_desc), GFP_ATOMIC);
+	dma_desc = kzalloc(sizeof(*dma_desc), GFP_NOWAIT);
 	if (!dma_desc) {
 		dev_err(tdc2dev(tdc), "dma_desc alloc failed\n");
 		return NULL;
@@ -336,7 +336,7 @@ static struct tegra_dma_sg_req *tegra_dma_sg_req_get(
 	}
 	spin_unlock_irqrestore(&tdc->lock, flags);
 
-	sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_ATOMIC);
+	sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_NOWAIT);
 	if (!sg_req)
 		dev_err(tdc2dev(tdc), "sg_req alloc failed\n");
 	return sg_req;
@@ -1186,10 +1186,12 @@ static int tegra_dma_alloc_chan_resources(struct dma_chan *dc)
 
 	dma_cookie_init(&tdc->dma_chan);
 	tdc->config_init = false;
-	ret = clk_prepare_enable(tdma->dma_clk);
+
+	ret = pm_runtime_get_sync(tdma->dev);
 	if (ret < 0)
-		dev_err(tdc2dev(tdc), "clk_prepare_enable failed: %d\n", ret);
-	return ret;
+		return ret;
+
+	return 0;
 }
 
 static void tegra_dma_free_chan_resources(struct dma_chan *dc)
@@ -1232,7 +1234,7 @@ static void tegra_dma_free_chan_resources(struct dma_chan *dc)
 		list_del(&sg_req->node);
 		kfree(sg_req);
 	}
-	clk_disable_unprepare(tdma->dma_clk);
+	pm_runtime_put(tdma->dev);
 
 	tdc->slave_id = 0;
 }
@@ -1356,20 +1358,14 @@ static int tegra_dma_probe(struct platform_device *pdev)
 	spin_lock_init(&tdma->global_lock);
 
 	pm_runtime_enable(&pdev->dev);
-	if (!pm_runtime_enabled(&pdev->dev)) {
+	if (!pm_runtime_enabled(&pdev->dev))
 		ret = tegra_dma_runtime_resume(&pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev, "dma_runtime_resume failed %d\n",
-				ret);
-			goto err_pm_disable;
-		}
-	}
+	else
+		ret = pm_runtime_get_sync(&pdev->dev);
 
-	/* Enable clock before accessing registers */
-	ret = clk_prepare_enable(tdma->dma_clk);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", ret);
-		goto err_pm_disable;
+		pm_runtime_disable(&pdev->dev);
+		return ret;
 	}
 
 	/* Reset DMA controller */
@@ -1382,7 +1378,7 @@ static int tegra_dma_probe(struct platform_device *pdev)
 	tdma_write(tdma, TEGRA_APBDMA_CONTROL, 0);
 	tdma_write(tdma, TEGRA_APBDMA_IRQ_MASK_SET, 0xFFFFFFFFul);
 
-	clk_disable_unprepare(tdma->dma_clk);
+	pm_runtime_put(&pdev->dev);
 
 	INIT_LIST_HEAD(&tdma->dma_dev.channels);
 	for (i = 0; i < cdata->nr_channels; i++) {
@@ -1400,8 +1396,7 @@ static int tegra_dma_probe(struct platform_device *pdev)
 		}
 		tdc->irq = res->start;
 		snprintf(tdc->name, sizeof(tdc->name), "apbdma.%d", i);
-		ret = devm_request_irq(&pdev->dev, tdc->irq,
-				tegra_dma_isr, 0, tdc->name, tdc);
+		ret = request_irq(tdc->irq, tegra_dma_isr, 0, tdc->name, tdc);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"request_irq failed with err %d channel %d\n",
@@ -1482,10 +1477,11 @@ err_unregister_dma_dev:
 err_irq:
 	while (--i >= 0) {
 		struct tegra_dma_channel *tdc = &tdma->channels[i];
+
+		free_irq(tdc->irq, tdc);
 		tasklet_kill(&tdc->tasklet);
 	}
 
-err_pm_disable:
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		tegra_dma_runtime_suspend(&pdev->dev);
@@ -1502,6 +1498,7 @@ static int tegra_dma_remove(struct platform_device *pdev)
 
 	for (i = 0; i < tdma->chip_data->nr_channels; ++i) {
 		tdc = &tdma->channels[i];
+		free_irq(tdc->irq, tdc);
 		tasklet_kill(&tdc->tasklet);
 	}
 
@@ -1514,8 +1511,7 @@ static int tegra_dma_remove(struct platform_device *pdev)
 
 static int tegra_dma_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct tegra_dma *tdma = platform_get_drvdata(pdev);
+	struct tegra_dma *tdma = dev_get_drvdata(dev);
 
 	clk_disable_unprepare(tdma->dma_clk);
 	return 0;
@@ -1523,8 +1519,7 @@ static int tegra_dma_runtime_suspend(struct device *dev)
 
 static int tegra_dma_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct tegra_dma *tdma = platform_get_drvdata(pdev);
+	struct tegra_dma *tdma = dev_get_drvdata(dev);
 	int ret;
 
 	ret = clk_prepare_enable(tdma->dma_clk);
@@ -1543,7 +1538,7 @@ static int tegra_dma_pm_suspend(struct device *dev)
 	int ret;
 
 	/* Enable clock before accessing register */
-	ret = tegra_dma_runtime_resume(dev);
+	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
 		return ret;
 
@@ -1552,15 +1547,22 @@ static int tegra_dma_pm_suspend(struct device *dev)
 		struct tegra_dma_channel *tdc = &tdma->channels[i];
 		struct tegra_dma_channel_regs *ch_reg = &tdc->channel_reg;
 
+		/* Only save the state of DMA channels that are in use */
+		if (!tdc->config_init)
+			continue;
+
 		ch_reg->csr = tdc_read(tdc, TEGRA_APBDMA_CHAN_CSR);
 		ch_reg->ahb_ptr = tdc_read(tdc, TEGRA_APBDMA_CHAN_AHBPTR);
 		ch_reg->apb_ptr = tdc_read(tdc, TEGRA_APBDMA_CHAN_APBPTR);
 		ch_reg->ahb_seq = tdc_read(tdc, TEGRA_APBDMA_CHAN_AHBSEQ);
 		ch_reg->apb_seq = tdc_read(tdc, TEGRA_APBDMA_CHAN_APBSEQ);
+		if (tdma->chip_data->support_separate_wcount_reg)
+			ch_reg->wcount = tdc_read(tdc,
+						  TEGRA_APBDMA_CHAN_WCOUNT);
 	}
 
 	/* Disable clock */
-	tegra_dma_runtime_suspend(dev);
+	pm_runtime_put(dev);
 	return 0;
 }
 
@@ -1571,7 +1573,7 @@ static int tegra_dma_pm_resume(struct device *dev)
 	int ret;
 
 	/* Enable clock before accessing register */
-	ret = tegra_dma_runtime_resume(dev);
+	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
 		return ret;
 
@@ -1583,6 +1585,13 @@ static int tegra_dma_pm_resume(struct device *dev)
 		struct tegra_dma_channel *tdc = &tdma->channels[i];
 		struct tegra_dma_channel_regs *ch_reg = &tdc->channel_reg;
 
+		/* Only restore the state of DMA channels that are in use */
+		if (!tdc->config_init)
+			continue;
+
+		if (tdma->chip_data->support_separate_wcount_reg)
+			tdc_write(tdc, TEGRA_APBDMA_CHAN_WCOUNT,
+				  ch_reg->wcount);
 		tdc_write(tdc, TEGRA_APBDMA_CHAN_APBSEQ, ch_reg->apb_seq);
 		tdc_write(tdc, TEGRA_APBDMA_CHAN_APBPTR, ch_reg->apb_ptr);
 		tdc_write(tdc, TEGRA_APBDMA_CHAN_AHBSEQ, ch_reg->ahb_seq);
@@ -1592,16 +1601,14 @@ static int tegra_dma_pm_resume(struct device *dev)
 	}
 
 	/* Disable clock */
-	tegra_dma_runtime_suspend(dev);
+	pm_runtime_put(dev);
 	return 0;
 }
 #endif
 
 static const struct dev_pm_ops tegra_dma_dev_pm_ops = {
-#ifdef CONFIG_PM
-	.runtime_suspend = tegra_dma_runtime_suspend,
-	.runtime_resume = tegra_dma_runtime_resume,
-#endif
+	SET_RUNTIME_PM_OPS(tegra_dma_runtime_suspend, tegra_dma_runtime_resume,
+			   NULL)
 	SET_SYSTEM_SLEEP_PM_OPS(tegra_dma_pm_suspend, tegra_dma_pm_resume)
 };
 
diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c
index a415edbe61b1..e107779b1a2e 100644
--- a/drivers/dma/ti-dma-crossbar.c
+++ b/drivers/dma/ti-dma-crossbar.c
@@ -12,7 +12,6 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
-#include <linux/idr.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_dma.h>
@@ -198,7 +197,8 @@ struct ti_dra7_xbar_data {
 	void __iomem *iomem;
 
 	struct dma_router dmarouter;
-	struct idr map_idr;
+	struct mutex mutex;
+	unsigned long *dma_inuse;
 
 	u16 safe_val; /* Value to rest the crossbar lines */
 	u32 xbar_requests; /* number of DMA requests connected to XBAR */
@@ -225,7 +225,9 @@ static void ti_dra7_xbar_free(struct device *dev, void *route_data)
 		map->xbar_in, map->xbar_out);
 
 	ti_dra7_xbar_write(xbar->iomem, map->xbar_out, xbar->safe_val);
-	idr_remove(&xbar->map_idr, map->xbar_out);
+	mutex_lock(&xbar->mutex);
+	clear_bit(map->xbar_out, xbar->dma_inuse);
+	mutex_unlock(&xbar->mutex);
 	kfree(map);
 }
 
@@ -255,8 +257,17 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	map->xbar_out = idr_alloc(&xbar->map_idr, NULL, 0, xbar->dma_requests,
-				  GFP_KERNEL);
+	mutex_lock(&xbar->mutex);
+	map->xbar_out = find_first_zero_bit(xbar->dma_inuse,
+					    xbar->dma_requests);
+	mutex_unlock(&xbar->mutex);
+	if (map->xbar_out == xbar->dma_requests) {
+		dev_err(&pdev->dev, "Run out of free DMA requests\n");
+		kfree(map);
+		return ERR_PTR(-ENOMEM);
+	}
+	set_bit(map->xbar_out, xbar->dma_inuse);
+
 	map->xbar_in = (u16)dma_spec->args[0];
 
 	dma_spec->args[0] = map->xbar_out + xbar->dma_offset;
@@ -278,17 +289,29 @@ static const struct of_device_id ti_dra7_master_match[] = {
 		.compatible = "ti,edma3",
 		.data = (void *)TI_XBAR_EDMA_OFFSET,
 	},
+	{
+		.compatible = "ti,edma3-tpcc",
+		.data = (void *)TI_XBAR_EDMA_OFFSET,
+	},
 	{},
 };
 
+static inline void ti_dra7_xbar_reserve(int offset, int len, unsigned long *p)
+{
+	for (; len > 0; len--)
+		clear_bit(offset + (len - 1), p);
+}
+
 static int ti_dra7_xbar_probe(struct platform_device *pdev)
 {
 	struct device_node *node = pdev->dev.of_node;
 	const struct of_device_id *match;
 	struct device_node *dma_node;
 	struct ti_dra7_xbar_data *xbar;
+	struct property *prop;
 	struct resource *res;
 	u32 safe_val;
+	size_t sz;
 	void __iomem *iomem;
 	int i, ret;
 
@@ -299,8 +322,6 @@ static int ti_dra7_xbar_probe(struct platform_device *pdev)
 	if (!xbar)
 		return -ENOMEM;
 
-	idr_init(&xbar->map_idr);
-
 	dma_node = of_parse_phandle(node, "dma-masters", 0);
 	if (!dma_node) {
 		dev_err(&pdev->dev, "Can't get DMA master node\n");
@@ -322,6 +343,12 @@ static int ti_dra7_xbar_probe(struct platform_device *pdev)
 	}
 	of_node_put(dma_node);
 
+	xbar->dma_inuse = devm_kcalloc(&pdev->dev,
+				       BITS_TO_LONGS(xbar->dma_requests),
+				       sizeof(unsigned long), GFP_KERNEL);
+	if (!xbar->dma_inuse)
+		return -ENOMEM;
+
 	if (of_property_read_u32(node, "dma-requests", &xbar->xbar_requests)) {
 		dev_info(&pdev->dev,
 			 "Missing XBAR input information, using %u.\n",
@@ -332,6 +359,33 @@ static int ti_dra7_xbar_probe(struct platform_device *pdev)
 	if (!of_property_read_u32(node, "ti,dma-safe-map", &safe_val))
 		xbar->safe_val = (u16)safe_val;
 
+
+	prop = of_find_property(node, "ti,reserved-dma-request-ranges", &sz);
+	if (prop) {
+		const char pname[] = "ti,reserved-dma-request-ranges";
+		u32 (*rsv_events)[2];
+		size_t nelm = sz / sizeof(*rsv_events);
+		int i;
+
+		if (!nelm)
+			return -EINVAL;
+
+		rsv_events = kcalloc(nelm, sizeof(*rsv_events), GFP_KERNEL);
+		if (!rsv_events)
+			return -ENOMEM;
+
+		ret = of_property_read_u32_array(node, pname, (u32 *)rsv_events,
+						 nelm * 2);
+		if (ret)
+			return ret;
+
+		for (i = 0; i < nelm; i++) {
+			ti_dra7_xbar_reserve(rsv_events[i][0], rsv_events[i][1],
+					     xbar->dma_inuse);
+		}
+		kfree(rsv_events);
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	iomem = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(iomem))
@@ -343,18 +397,23 @@ static int ti_dra7_xbar_probe(struct platform_device *pdev)
 	xbar->dmarouter.route_free = ti_dra7_xbar_free;
 	xbar->dma_offset = (u32)match->data;
 
+	mutex_init(&xbar->mutex);
 	platform_set_drvdata(pdev, xbar);
 
 	/* Reset the crossbar */
-	for (i = 0; i < xbar->dma_requests; i++)
-		ti_dra7_xbar_write(xbar->iomem, i, xbar->safe_val);
+	for (i = 0; i < xbar->dma_requests; i++) {
+		if (!test_bit(i, xbar->dma_inuse))
+			ti_dra7_xbar_write(xbar->iomem, i, xbar->safe_val);
+	}
 
 	ret = of_dma_router_register(node, ti_dra7_xbar_route_allocate,
 				     &xbar->dmarouter);
 	if (ret) {
 		/* Restore the defaults for the crossbar */
-		for (i = 0; i < xbar->dma_requests; i++)
-			ti_dra7_xbar_write(xbar->iomem, i, i);
+		for (i = 0; i < xbar->dma_requests; i++) {
+			if (!test_bit(i, xbar->dma_inuse))
+				ti_dra7_xbar_write(xbar->iomem, i, i);
+		}
 	}
 
 	return ret;
diff --git a/drivers/dma/virt-dma.c b/drivers/dma/virt-dma.c
index 6f80432a3f0a..a35c211857dd 100644
--- a/drivers/dma/virt-dma.c
+++ b/drivers/dma/virt-dma.c
@@ -29,7 +29,7 @@ dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *tx)
 	spin_lock_irqsave(&vc->lock, flags);
 	cookie = dma_cookie_assign(tx);
 
-	list_add_tail(&vd->node, &vc->desc_submitted);
+	list_move_tail(&vd->node, &vc->desc_submitted);
 	spin_unlock_irqrestore(&vc->lock, flags);
 
 	dev_dbg(vc->chan.device->dev, "vchan %p: txd %p[%x]: submitted\n",
@@ -39,6 +39,33 @@ dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *tx)
 }
 EXPORT_SYMBOL_GPL(vchan_tx_submit);
 
+/**
+ * vchan_tx_desc_free - free a reusable descriptor
+ * @tx: the transfer
+ *
+ * This function frees a previously allocated reusable descriptor. The only
+ * other way is to clear the DMA_CTRL_REUSE flag and submit one last time the
+ * transfer.
+ *
+ * Returns 0 upon success
+ */
+int vchan_tx_desc_free(struct dma_async_tx_descriptor *tx)
+{
+	struct virt_dma_chan *vc = to_virt_chan(tx->chan);
+	struct virt_dma_desc *vd = to_virt_desc(tx);
+	unsigned long flags;
+
+	spin_lock_irqsave(&vc->lock, flags);
+	list_del(&vd->node);
+	spin_unlock_irqrestore(&vc->lock, flags);
+
+	dev_dbg(vc->chan.device->dev, "vchan %p: txd %p[%x]: freeing\n",
+		vc, vd, vd->tx.cookie);
+	vc->desc_free(vd);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(vchan_tx_desc_free);
+
 struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *vc,
 	dma_cookie_t cookie)
 {
@@ -83,8 +110,10 @@ static void vchan_complete(unsigned long arg)
 		cb_data = vd->tx.callback_param;
 
 		list_del(&vd->node);
-
-		vc->desc_free(vd);
+		if (dmaengine_desc_test_reuse(&vd->tx))
+			list_add(&vd->node, &vc->desc_allocated);
+		else
+			vc->desc_free(vd);
 
 		if (cb)
 			cb(cb_data);
@@ -96,9 +125,13 @@ void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head)
 	while (!list_empty(head)) {
 		struct virt_dma_desc *vd = list_first_entry(head,
 			struct virt_dma_desc, node);
-		list_del(&vd->node);
-		dev_dbg(vc->chan.device->dev, "txd %p: freeing\n", vd);
-		vc->desc_free(vd);
+		if (dmaengine_desc_test_reuse(&vd->tx)) {
+			list_move_tail(&vd->node, &vc->desc_allocated);
+		} else {
+			dev_dbg(vc->chan.device->dev, "txd %p: freeing\n", vd);
+			list_del(&vd->node);
+			vc->desc_free(vd);
+		}
 	}
 }
 EXPORT_SYMBOL_GPL(vchan_dma_desc_free_list);
@@ -108,6 +141,7 @@ void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev)
 	dma_cookie_init(&vc->chan);
 
 	spin_lock_init(&vc->lock);
+	INIT_LIST_HEAD(&vc->desc_allocated);
 	INIT_LIST_HEAD(&vc->desc_submitted);
 	INIT_LIST_HEAD(&vc->desc_issued);
 	INIT_LIST_HEAD(&vc->desc_completed);
diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h
index 2fa47745a41f..d9731ca5e262 100644
--- a/drivers/dma/virt-dma.h
+++ b/drivers/dma/virt-dma.h
@@ -29,6 +29,7 @@ struct virt_dma_chan {
 	spinlock_t lock;
 
 	/* protected by vc.lock */
+	struct list_head desc_allocated;
 	struct list_head desc_submitted;
 	struct list_head desc_issued;
 	struct list_head desc_completed;
@@ -55,10 +56,17 @@ static inline struct dma_async_tx_descriptor *vchan_tx_prep(struct virt_dma_chan
 	struct virt_dma_desc *vd, unsigned long tx_flags)
 {
 	extern dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *);
+	extern int vchan_tx_desc_free(struct dma_async_tx_descriptor *);
+	unsigned long flags;
 
 	dma_async_tx_descriptor_init(&vd->tx, &vc->chan);
 	vd->tx.flags = tx_flags;
 	vd->tx.tx_submit = vchan_tx_submit;
+	vd->tx.desc_free = vchan_tx_desc_free;
+
+	spin_lock_irqsave(&vc->lock, flags);
+	list_add_tail(&vd->node, &vc->desc_allocated);
+	spin_unlock_irqrestore(&vc->lock, flags);
 
 	return &vd->tx;
 }
@@ -134,6 +142,7 @@ static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc)
 static inline void vchan_get_all_descriptors(struct virt_dma_chan *vc,
 	struct list_head *head)
 {
+	list_splice_tail_init(&vc->desc_allocated, head);
 	list_splice_tail_init(&vc->desc_submitted, head);
 	list_splice_tail_init(&vc->desc_issued, head);
 	list_splice_tail_init(&vc->desc_completed, head);
@@ -141,14 +150,30 @@ static inline void vchan_get_all_descriptors(struct virt_dma_chan *vc,
 
 static inline void vchan_free_chan_resources(struct virt_dma_chan *vc)
 {
+	struct virt_dma_desc *vd;
 	unsigned long flags;
 	LIST_HEAD(head);
 
 	spin_lock_irqsave(&vc->lock, flags);
 	vchan_get_all_descriptors(vc, &head);
+	list_for_each_entry(vd, &head, node)
+		dmaengine_desc_clear_reuse(&vd->tx);
 	spin_unlock_irqrestore(&vc->lock, flags);
 
 	vchan_dma_desc_free_list(vc, &head);
 }
 
+/**
+ * vchan_synchronize() - synchronize callback execution to the current context
+ * @vc: virtual channel to synchronize
+ *
+ * Makes sure that all scheduled or active callbacks have finished running. For
+ * proper operation the caller has to ensure that no new callbacks are scheduled
+ * after the invocation of this function started.
+ */
+static inline void vchan_synchronize(struct virt_dma_chan *vc)
+{
+	tasklet_kill(&vc->task);
+}
+
 #endif
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 0cebbf668886..3d89e60a3e71 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -52,6 +52,15 @@ config EXTCON_MAX14577
 	  Maxim MAX14577/77836. The MAX14577/77836 MUIC is a USB port accessory
 	  detector and switch.
 
+config EXTCON_MAX3355
+	tristate "Maxim MAX3355 USB OTG EXTCON Support"
+	depends on GPIOLIB || COMPILE_TEST
+	help
+	  If you say yes here you get support for the USB OTG role detection by
+	  MAX3355. The MAX3355 chip integrates a charge pump and comparators to
+	  enable a system with an integrated USB OTG dual-role transceiver to
+	  function as an USB OTG dual-role device.
+
 config EXTCON_MAX77693
 	tristate "Maxim MAX77693 EXTCON Support"
 	depends on MFD_MAX77693 && INPUT
diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile
index ba787d04295b..2a0e4f45d5b2 100644
--- a/drivers/extcon/Makefile
+++ b/drivers/extcon/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_EXTCON_ARIZONA)	+= extcon-arizona.o
 obj-$(CONFIG_EXTCON_AXP288)	+= extcon-axp288.o
 obj-$(CONFIG_EXTCON_GPIO)	+= extcon-gpio.o
 obj-$(CONFIG_EXTCON_MAX14577)	+= extcon-max14577.o
+obj-$(CONFIG_EXTCON_MAX3355)	+= extcon-max3355.o
 obj-$(CONFIG_EXTCON_MAX77693)	+= extcon-max77693.o
 obj-$(CONFIG_EXTCON_MAX77843)	+= extcon-max77843.o
 obj-$(CONFIG_EXTCON_MAX8997)	+= extcon-max8997.o
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index e4890dd4fefd..c121d01a5cd6 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1201,10 +1201,58 @@ static void arizona_micd_set_level(struct arizona *arizona, int index,
 	regmap_update_bits(arizona->regmap, reg, mask, level);
 }
 
-static int arizona_extcon_device_get_pdata(struct arizona *arizona)
+static int arizona_extcon_get_micd_configs(struct device *dev,
+					   struct arizona *arizona)
+{
+	const char * const prop = "wlf,micd-configs";
+	const int entries_per_config = 3;
+	struct arizona_micd_config *micd_configs;
+	int nconfs, ret;
+	int i, j;
+	u32 *vals;
+
+	nconfs = device_property_read_u32_array(arizona->dev, prop, NULL, 0);
+	if (nconfs <= 0)
+		return 0;
+
+	vals = kcalloc(nconfs, sizeof(u32), GFP_KERNEL);
+	if (!vals)
+		return -ENOMEM;
+
+	ret = device_property_read_u32_array(arizona->dev, prop, vals, nconfs);
+	if (ret < 0)
+		goto out;
+
+	nconfs /= entries_per_config;
+
+	micd_configs = devm_kzalloc(dev,
+				    nconfs * sizeof(struct arizona_micd_range),
+				    GFP_KERNEL);
+	if (!micd_configs) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0, j = 0; i < nconfs; ++i) {
+		micd_configs[i].src = vals[j++] ? ARIZONA_ACCDET_SRC : 0;
+		micd_configs[i].bias = vals[j++];
+		micd_configs[i].gpio = vals[j++];
+	}
+
+	arizona->pdata.micd_configs = micd_configs;
+	arizona->pdata.num_micd_configs = nconfs;
+
+out:
+	kfree(vals);
+	return ret;
+}
+
+static int arizona_extcon_device_get_pdata(struct device *dev,
+					   struct arizona *arizona)
 {
 	struct arizona_pdata *pdata = &arizona->pdata;
 	unsigned int val = ARIZONA_ACCDET_MODE_HPL;
+	int ret;
 
 	device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val);
 	switch (val) {
@@ -1230,12 +1278,29 @@ static int arizona_extcon_device_get_pdata(struct arizona *arizona)
 	device_property_read_u32(arizona->dev, "wlf,micd-dbtime",
 				 &pdata->micd_dbtime);
 
-	device_property_read_u32(arizona->dev, "wlf,micd-timeout",
+	device_property_read_u32(arizona->dev, "wlf,micd-timeout-ms",
 				 &pdata->micd_timeout);
 
 	pdata->micd_force_micbias = device_property_read_bool(arizona->dev,
 						"wlf,micd-force-micbias");
 
+	pdata->micd_software_compare = device_property_read_bool(arizona->dev,
+						"wlf,micd-software-compare");
+
+	pdata->jd_invert = device_property_read_bool(arizona->dev,
+						     "wlf,jd-invert");
+
+	device_property_read_u32(arizona->dev, "wlf,gpsw", &pdata->gpsw);
+
+	pdata->jd_gpio5 = device_property_read_bool(arizona->dev,
+						    "wlf,use-jd2");
+	pdata->jd_gpio5_nopull = device_property_read_bool(arizona->dev,
+						"wlf,use-jd2-nopull");
+
+	ret = arizona_extcon_get_micd_configs(dev, arizona);
+	if (ret < 0)
+		dev_err(arizona->dev, "Failed to read micd configs: %d\n", ret);
+
 	return 0;
 }
 
@@ -1257,7 +1322,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	if (!dev_get_platdata(arizona->dev))
-		arizona_extcon_device_get_pdata(arizona);
+		arizona_extcon_device_get_pdata(&pdev->dev, arizona);
 
 	info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD");
 	if (IS_ERR(info->micvdd)) {
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index 601dbd996487..b30ab97ce75f 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -692,7 +692,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
 	/* Support irq domain for max14577 MUIC device */
 	for (i = 0; i < info->muic_irqs_num; i++) {
 		struct max14577_muic_irq *muic_irq = &info->muic_irqs[i];
-		unsigned int virq = 0;
+		int virq = 0;
 
 		virq = regmap_irq_get_virq(max14577->irq_data, muic_irq->irq);
 		if (virq <= 0)
diff --git a/drivers/extcon/extcon-max3355.c b/drivers/extcon/extcon-max3355.c
new file mode 100644
index 000000000000..c24abec5d06c
--- /dev/null
+++ b/drivers/extcon/extcon-max3355.c
@@ -0,0 +1,146 @@
+/*
+ * Maxim Integrated MAX3355 USB OTG chip extcon driver
+ *
+ * Copyright (C)  2014-2015 Cogent Embedded, Inc.
+ * Author: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ */
+
+#include <linux/extcon.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+struct max3355_data {
+	struct extcon_dev *edev;
+	struct gpio_desc *id_gpiod;
+	struct gpio_desc *shdn_gpiod;
+};
+
+static const unsigned int max3355_cable[] = {
+	EXTCON_USB,
+	EXTCON_USB_HOST,
+	EXTCON_NONE,
+};
+
+static irqreturn_t max3355_id_irq(int irq, void *dev_id)
+{
+	struct max3355_data *data = dev_id;
+	int id = gpiod_get_value_cansleep(data->id_gpiod);
+
+	if (id) {
+		/*
+		 * ID = 1 means USB HOST cable detached.
+		 * As we don't have event for USB peripheral cable attached,
+		 * we simulate USB peripheral attach here.
+		 */
+		extcon_set_cable_state_(data->edev, EXTCON_USB_HOST, false);
+		extcon_set_cable_state_(data->edev, EXTCON_USB, true);
+	} else {
+		/*
+		 * ID = 0 means USB HOST cable attached.
+		 * As we don't have event for USB peripheral cable detached,
+		 * we simulate USB peripheral detach here.
+		 */
+		extcon_set_cable_state_(data->edev, EXTCON_USB, false);
+		extcon_set_cable_state_(data->edev, EXTCON_USB_HOST, true);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int max3355_probe(struct platform_device *pdev)
+{
+	struct max3355_data *data;
+	struct gpio_desc *gpiod;
+	int irq, err;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(struct max3355_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	gpiod = devm_gpiod_get(&pdev->dev, "id", GPIOD_IN);
+	if (IS_ERR(gpiod)) {
+		dev_err(&pdev->dev, "failed to get ID_OUT GPIO\n");
+		return PTR_ERR(gpiod);
+	}
+	data->id_gpiod = gpiod;
+
+	gpiod = devm_gpiod_get(&pdev->dev, "maxim,shdn", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpiod)) {
+		dev_err(&pdev->dev, "failed to get SHDN# GPIO\n");
+		return PTR_ERR(gpiod);
+	}
+	data->shdn_gpiod = gpiod;
+
+	data->edev = devm_extcon_dev_allocate(&pdev->dev, max3355_cable);
+	if (IS_ERR(data->edev)) {
+		dev_err(&pdev->dev, "failed to allocate extcon device\n");
+		return PTR_ERR(data->edev);
+	}
+
+	err = devm_extcon_dev_register(&pdev->dev, data->edev);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to register extcon device\n");
+		return err;
+	}
+
+	irq = gpiod_to_irq(data->id_gpiod);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to translate ID_OUT GPIO to IRQ\n");
+		return irq;
+	}
+
+	err = devm_request_threaded_irq(&pdev->dev, irq, NULL, max3355_id_irq,
+					IRQF_ONESHOT | IRQF_NO_SUSPEND |
+					IRQF_TRIGGER_RISING |
+					IRQF_TRIGGER_FALLING,
+					pdev->name, data);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to request ID_OUT IRQ\n");
+		return err;
+	}
+
+	platform_set_drvdata(pdev, data);
+
+	/* Perform initial detection */
+	max3355_id_irq(irq, data);
+
+	return 0;
+}
+
+static int max3355_remove(struct platform_device *pdev)
+{
+	struct max3355_data *data = platform_get_drvdata(pdev);
+
+	gpiod_set_value_cansleep(data->shdn_gpiod, 0);
+
+	return 0;
+}
+
+static const struct of_device_id max3355_match_table[] = {
+	{ .compatible = "maxim,max3355", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, max3355_match_table);
+
+static struct platform_driver max3355_driver = {
+	.probe		= max3355_probe,
+	.remove		= max3355_remove,
+	.driver		= {
+		.name	= "extcon-max3355",
+		.of_match_table = max3355_match_table,
+	},
+};
+
+module_platform_driver(max3355_driver);
+
+MODULE_AUTHOR("Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>");
+MODULE_DESCRIPTION("Maxim MAX3355 extcon driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 44c499e1beee..fdf8f5d4d4e9 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1127,11 +1127,11 @@ static int max77693_muic_probe(struct platform_device *pdev)
 	/* Support irq domain for MAX77693 MUIC device */
 	for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
 		struct max77693_muic_irq *muic_irq = &muic_irqs[i];
-		unsigned int virq = 0;
+		int virq;
 
 		virq = regmap_irq_get_virq(max77693->irq_data_muic,
 					muic_irq->irq);
-		if (!virq)
+		if (virq <= 0)
 			return -EINVAL;
 		muic_irq->virq = virq;
 
diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
index 9f9ea334399c..74dfb7f4f277 100644
--- a/drivers/extcon/extcon-max77843.c
+++ b/drivers/extcon/extcon-max77843.c
@@ -811,7 +811,7 @@ static int max77843_muic_probe(struct platform_device *pdev)
 
 	for (i = 0; i < ARRAY_SIZE(max77843_muic_irqs); i++) {
 		struct max77843_muic_irq *muic_irq = &max77843_muic_irqs[i];
-		unsigned int virq = 0;
+		int virq = 0;
 
 		virq = regmap_irq_get_virq(max77843->irq_data_muic,
 				muic_irq->irq);
diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
index 36bf1d63791c..e1bb82809bef 100644
--- a/drivers/extcon/extcon-rt8973a.c
+++ b/drivers/extcon/extcon-rt8973a.c
@@ -603,7 +603,7 @@ static int rt8973a_muic_i2c_probe(struct i2c_client *i2c,
 
 		ret = devm_request_threaded_irq(info->dev, virq, NULL,
 						rt8973a_muic_irq_handler,
-						IRQF_NO_SUSPEND,
+						IRQF_NO_SUSPEND | IRQF_ONESHOT,
 						muic_irq->name, info);
 		if (ret) {
 			dev_err(info->dev,
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index cffa89b3317b..2cd37dad67a6 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -25,7 +25,7 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 
-#include <asm/efi.h>
+#include <asm/early_ioremap.h>
 
 struct efi __read_mostly efi = {
 	.mps			= EFI_INVALID_TABLE_ADDR,
diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index b62e2f5dcab3..cf7b7d46302a 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -253,7 +253,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
 			sys_table->boottime->free_pool(memory_map);
 			new_fdt_size += EFI_PAGE_SIZE;
 		} else {
-			pr_efi_err(sys_table, "Unable to constuct new device tree.\n");
+			pr_efi_err(sys_table, "Unable to construct new device tree.\n");
 			goto fail_free_mmap;
 		}
 	}
diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index ca002739616a..624ea5421995 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -122,6 +122,10 @@ static int arizona_gpio_probe(struct platform_device *pdev)
 	case WM1814:
 		arizona_gpio->gpio_chip.ngpio = 5;
 		break;
+	case WM1831:
+	case CS47L24:
+		arizona_gpio->gpio_chip.ngpio = 2;
+		break;
 	default:
 		dev_err(&pdev->dev, "Unknown chip variant %d\n",
 			arizona->type);
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 16a7b6816744..bc34bc51a948 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -417,10 +417,15 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
 		 * ActiveLow is only specified for GpioInt resource. If
 		 * GpioIo is used then the only way to set the flag is
 		 * to use _DSD "gpios" property.
+		 * Note: we expect here:
+		 * - ACPI_ACTIVE_LOW == GPIO_ACTIVE_LOW
+		 * - ACPI_ACTIVE_HIGH == GPIO_ACTIVE_HIGH
 		 */
-		if (lookup->info.gpioint)
-			lookup->info.active_low =
-				agpio->polarity == ACPI_ACTIVE_LOW;
+		if (lookup->info.gpioint) {
+			lookup->info.polarity = agpio->polarity;
+			lookup->info.triggering = agpio->triggering;
+		}
+
 	}
 
 	return 1;
@@ -447,7 +452,7 @@ static int acpi_gpio_resource_lookup(struct acpi_gpio_lookup *lookup,
 	if (info) {
 		*info = lookup->info;
 		if (lookup->active_low)
-			info->active_low = lookup->active_low;
+			info->polarity = lookup->active_low;
 	}
 	return 0;
 }
@@ -595,6 +600,7 @@ struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 {
 	int idx, i;
+	unsigned int irq_flags;
 
 	for (i = 0, idx = 0; idx <= index; i++) {
 		struct acpi_gpio_info info;
@@ -603,8 +609,23 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 		desc = acpi_get_gpiod_by_index(adev, NULL, i, &info);
 		if (IS_ERR(desc))
 			break;
-		if (info.gpioint && idx++ == index)
-			return gpiod_to_irq(desc);
+		if (info.gpioint && idx++ == index) {
+			int irq = gpiod_to_irq(desc);
+
+			if (irq < 0)
+				return irq;
+
+			irq_flags = acpi_dev_get_irq_type(info.triggering,
+							  info.polarity);
+
+			/* Set type if specified and different than the current one */
+			if (irq_flags != IRQ_TYPE_NONE &&
+			    irq_flags != irq_get_trigger_type(irq))
+				irq_set_irq_type(irq, irq_flags);
+
+			return irq;
+		}
+
 	}
 	return -ENOENT;
 }
@@ -922,3 +943,46 @@ int acpi_gpio_count(struct device *dev, const char *con_id)
 	}
 	return count;
 }
+
+struct acpi_crs_lookup {
+	struct list_head node;
+	struct acpi_device *adev;
+	const char *con_id;
+};
+
+static DEFINE_MUTEX(acpi_crs_lookup_lock);
+static LIST_HEAD(acpi_crs_lookup_list);
+
+bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id)
+{
+	struct acpi_crs_lookup *l, *lookup = NULL;
+
+	/* Never allow fallback if the device has properties */
+	if (adev->data.properties || adev->driver_gpios)
+		return false;
+
+	mutex_lock(&acpi_crs_lookup_lock);
+
+	list_for_each_entry(l, &acpi_crs_lookup_list, node) {
+		if (l->adev == adev) {
+			lookup = l;
+			break;
+		}
+	}
+
+	if (!lookup) {
+		lookup = kmalloc(sizeof(*lookup), GFP_KERNEL);
+		if (lookup) {
+			lookup->adev = adev;
+			lookup->con_id = con_id;
+			list_add_tail(&lookup->node, &acpi_crs_lookup_list);
+		}
+	}
+
+	mutex_unlock(&acpi_crs_lookup_lock);
+
+	return lookup &&
+		((!lookup->con_id && !con_id) ||
+		 (lookup->con_id && con_id &&
+		  strcmp(lookup->con_id, con_id) == 0));
+}
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4e4c3083ae56..3346abd29b52 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1874,12 +1874,15 @@ static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
 
 	/* Then from plain _CRS GPIOs */
 	if (IS_ERR(desc)) {
+		if (!acpi_can_fallback_to_crs(adev, con_id))
+			return ERR_PTR(-ENOENT);
+
 		desc = acpi_get_gpiod_by_index(adev, NULL, idx, &info);
 		if (IS_ERR(desc))
 			return desc;
 	}
 
-	if (info.active_low)
+	if (info.polarity == GPIO_ACTIVE_LOW)
 		*flags |= GPIO_ACTIVE_LOW;
 
 	return desc;
@@ -2217,7 +2220,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 
 		desc = acpi_node_get_gpiod(fwnode, propname, 0, &info);
 		if (!IS_ERR(desc))
-			active_low = info.active_low;
+			active_low = info.polarity == GPIO_ACTIVE_LOW;
 	}
 
 	if (IS_ERR(desc))
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 98ab08c0aa2d..be3a977d0349 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -26,7 +26,8 @@ struct acpi_device;
  */
 struct acpi_gpio_info {
 	bool gpioint;
-	bool active_low;
+	int polarity;
+	int triggering;
 };
 
 /* gpio suffixes used for ACPI and device tree lookup */
@@ -47,6 +48,8 @@ struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
 				      struct acpi_gpio_info *info);
 
 int acpi_gpio_count(struct device *dev, const char *con_id);
+
+bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id);
 #else
 static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
 static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
@@ -73,6 +76,12 @@ static inline int acpi_gpio_count(struct device *dev, const char *con_id)
 {
 	return -ENODEV;
 }
+
+static inline bool acpi_can_fallback_to_crs(struct acpi_device *adev,
+					    const char *con_id)
+{
+	return false;
+}
 #endif
 
 struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index d321222fd92e..d2b49c026cf6 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -558,8 +558,7 @@ static int kfd_ioctl_dbg_address_watch(struct file *filep,
 		return -EINVAL;
 
 	/* this is the actual buffer to work with */
-
-	args_buff = memdup_user(args_buff,
+	args_buff = memdup_user(cmd_from_user,
 				args->buf_size_in_bytes - sizeof(*args));
 	if (IS_ERR(args_buff))
 		return PTR_ERR(args_buff);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.h b/drivers/gpu/drm/exynos/exynos_drm_fb.h
index 726a2d44371f..cf39f9816a87 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.h
@@ -12,7 +12,7 @@
  */
 
 #ifndef _EXYNOS_DRM_FB_H_
-#define _EXYNOS_DRM_FB_H
+#define _EXYNOS_DRM_FB_H_
 
 #include "exynos_drm_gem.h"
 
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c6f7a694f67a..7e89288b1537 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -625,7 +625,7 @@ static void hid_close_report(struct hid_device *device)
 
 static void hid_device_release(struct device *dev)
 {
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 
 	hid_close_report(hid);
 	kfree(hid->dev_rdesc);
@@ -1571,8 +1571,8 @@ read_report_descriptor(struct file *filp, struct kobject *kobj,
 		struct bin_attribute *attr,
 		char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct device *dev = kobj_to_dev(kobj);
+	struct hid_device *hdev = to_hid_device(dev);
 
 	if (off >= hdev->rsize)
 		return 0;
@@ -1589,7 +1589,7 @@ static ssize_t
 show_country(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 
 	return sprintf(buf, "%02x\n", hdev->country & 0xff);
 }
@@ -1691,11 +1691,6 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
 		hid_warn(hdev,
 			 "can't create sysfs country code attribute err: %d\n", ret);
 
-	ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
-	if (ret)
-		hid_warn(hdev,
-			 "can't create sysfs report descriptor attribute err: %d\n", ret);
-
 	hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
 		 buf, bus, hdev->version >> 8, hdev->version & 0xff,
 		 type, hdev->name, hdev->phys);
@@ -1707,7 +1702,6 @@ EXPORT_SYMBOL_GPL(hid_connect);
 void hid_disconnect(struct hid_device *hdev)
 {
 	device_remove_file(&hdev->dev, &dev_attr_country);
-	device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
 	if (hdev->claimed & HID_CLAIMED_INPUT)
 		hidinput_disconnect(hdev);
 	if (hdev->claimed & HID_CLAIMED_HIDDEV)
@@ -1902,6 +1896,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
@@ -2076,7 +2071,7 @@ struct hid_dynid {
 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
 		size_t count)
 {
-	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
+	struct hid_driver *hdrv = to_hid_driver(drv);
 	struct hid_dynid *dynid;
 	__u32 bus, vendor, product;
 	unsigned long driver_data = 0;
@@ -2138,17 +2133,16 @@ static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
 
 static int hid_bus_match(struct device *dev, struct device_driver *drv)
 {
-	struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_driver *hdrv = to_hid_driver(drv);
+	struct hid_device *hdev = to_hid_device(dev);
 
 	return hid_match_device(hdev, hdrv) != NULL;
 }
 
 static int hid_device_probe(struct device *dev)
 {
-	struct hid_driver *hdrv = container_of(dev->driver,
-			struct hid_driver, driver);
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_driver *hdrv = to_hid_driver(dev->driver);
+	struct hid_device *hdev = to_hid_device(dev);
 	const struct hid_device_id *id;
 	int ret = 0;
 
@@ -2190,7 +2184,7 @@ unlock_driver_lock:
 
 static int hid_device_remove(struct device *dev)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct hid_driver *hdrv;
 	int ret = 0;
 
@@ -2223,12 +2217,9 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
 			     char *buf)
 {
 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
-	int len;
-
-	len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
-		       hdev->bus, hdev->group, hdev->vendor, hdev->product);
 
-	return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+	return scnprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
+			 hdev->bus, hdev->group, hdev->vendor, hdev->product);
 }
 static DEVICE_ATTR_RO(modalias);
 
@@ -2236,11 +2227,19 @@ static struct attribute *hid_dev_attrs[] = {
 	&dev_attr_modalias.attr,
 	NULL,
 };
-ATTRIBUTE_GROUPS(hid_dev);
+static struct bin_attribute *hid_dev_bin_attrs[] = {
+	&dev_bin_attr_report_desc,
+	NULL
+};
+static const struct attribute_group hid_dev_group = {
+	.attrs = hid_dev_attrs,
+	.bin_attrs = hid_dev_bin_attrs,
+};
+__ATTRIBUTE_GROUPS(hid_dev);
 
 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);	
 
 	if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
 			hdev->bus, hdev->vendor, hdev->product))
@@ -2408,6 +2407,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454_V2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
@@ -2660,6 +2660,7 @@ struct hid_device *hid_allocate_device(void)
 	device_initialize(&hdev->dev);
 	hdev->dev.release = hid_device_release;
 	hdev->dev.bus = &hid_bus_type;
+	device_enable_async_suspend(&hdev->dev);
 
 	hid_close_report(hdev);
 
diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
index bcefb9ebb026..58551964ce86 100644
--- a/drivers/hid/hid-corsair.c
+++ b/drivers/hid/hid-corsair.c
@@ -655,18 +655,7 @@ static struct hid_driver corsair_driver = {
 	.input_mapping = corsair_input_mapping,
 };
 
-static int __init corsair_init(void)
-{
-	return hid_register_driver(&corsair_driver);
-}
-
-static void corsair_exit(void)
-{
-	hid_unregister_driver(&corsair_driver);
-}
-
-module_init(corsair_init);
-module_exit(corsair_exit);
+module_hid_driver(corsair_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Clement Vuchener");
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index 7afc3fcc122c..7c38bfa05fac 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -807,7 +807,7 @@ static ssize_t name##_store(struct device *kdev, \
 			    struct device_attribute *attr, const char *buf, \
 			    size_t count) \
 { \
-	struct hid_device *hdev = container_of(kdev, struct hid_device, dev); \
+	struct hid_device *hdev = to_hid_device(kdev); \
 	struct cp2112_usb_config_report cfg; \
 	int ret = cp2112_get_usb_config(hdev, &cfg); \
 	if (ret) \
@@ -822,7 +822,7 @@ static ssize_t name##_store(struct device *kdev, \
 static ssize_t name##_show(struct device *kdev, \
 			   struct device_attribute *attr, char *buf) \
 { \
-	struct hid_device *hdev = container_of(kdev, struct hid_device, dev); \
+	struct hid_device *hdev = to_hid_device(kdev); \
 	struct cp2112_usb_config_report cfg; \
 	int ret = cp2112_get_usb_config(hdev, &cfg); \
 	if (ret) \
@@ -887,7 +887,7 @@ static ssize_t pstr_store(struct device *kdev,
 			  struct device_attribute *kattr, const char *buf,
 			  size_t count)
 {
-	struct hid_device *hdev = container_of(kdev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(kdev);
 	struct cp2112_pstring_attribute *attr =
 		container_of(kattr, struct cp2112_pstring_attribute, attr);
 	struct cp2112_string_report report;
@@ -918,7 +918,7 @@ static ssize_t pstr_store(struct device *kdev,
 static ssize_t pstr_show(struct device *kdev,
 			 struct device_attribute *kattr, char *buf)
 {
-	struct hid_device *hdev = container_of(kdev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(kdev);
 	struct cp2112_pstring_attribute *attr =
 		container_of(kattr, struct cp2112_pstring_attribute, attr);
 	struct cp2112_string_report report;
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 2886b645ced7..acfb522a432a 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -659,13 +659,13 @@ EXPORT_SYMBOL_GPL(hid_dump_device);
 /* enqueue string to 'events' ring buffer */
 void hid_debug_event(struct hid_device *hdev, char *buf)
 {
-	int i;
+	unsigned i;
 	struct hid_debug_list *list;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hdev->debug_list_lock, flags);
 	list_for_each_entry(list, &hdev->debug_list, node) {
-		for (i = 0; i < strlen(buf); i++)
+		for (i = 0; buf[i]; i++)
 			list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] =
 				buf[i];
 		list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
diff --git a/drivers/hid/hid-gt683r.c b/drivers/hid/hid-gt683r.c
index 0d6f135e266c..a298fbd8db6b 100644
--- a/drivers/hid/hid-gt683r.c
+++ b/drivers/hid/hid-gt683r.c
@@ -70,7 +70,7 @@ static void gt683r_brightness_set(struct led_classdev *led_cdev,
 {
 	int i;
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct gt683r_led *led = hid_get_drvdata(hdev);
 
 	for (i = 0; i < GT683R_LED_COUNT; i++) {
@@ -89,8 +89,7 @@ static ssize_t mode_show(struct device *dev,
 				char *buf)
 {
 	u8 sysfs_mode;
-	struct hid_device *hdev = container_of(dev->parent,
-					struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev->parent);
 	struct gt683r_led *led = hid_get_drvdata(hdev);
 
 	if (led->mode == GT683R_LED_NORMAL)
@@ -108,8 +107,7 @@ static ssize_t mode_store(struct device *dev,
 				const char *buf, size_t count)
 {
 	u8 sysfs_mode;
-	struct hid_device *hdev = container_of(dev->parent,
-					struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev->parent);
 	struct gt683r_led *led = hid_get_drvdata(hdev);
 
 
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 8b78a7f1f779..b6ff6e78ac54 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -510,6 +510,7 @@
 #define USB_VENDOR_ID_ITE               0x048d
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA   0x8386
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA2  0x8350
+#define USB_DEVICE_ID_ITE_LENOVO_YOGA900	0x8396
 
 #define USB_VENDOR_ID_JABRA		0x0b0e
 #define USB_DEVICE_ID_JABRA_SPEAK_410	0x0412
@@ -615,6 +616,7 @@
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2	0xc218
 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2	0xc219
 #define USB_DEVICE_ID_LOGITECH_G29_WHEEL	0xc24f
+#define USB_DEVICE_ID_LOGITECH_G920_WHEEL	0xc262
 #define USB_DEVICE_ID_LOGITECH_WINGMAN_F3D	0xc283
 #define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO	0xc286
 #define USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940	0xc287
@@ -664,6 +666,7 @@
 #define USB_DEVICE_ID_PICOLCD		0xc002
 #define USB_DEVICE_ID_PICOLCD_BOOTLOADER	0xf002
 #define USB_DEVICE_ID_PICK16F1454	0x0042
+#define USB_DEVICE_ID_PICK16F1454_V2	0xf2f7
 
 #define USB_VENDOR_ID_MICROSOFT		0x045e
 #define USB_DEVICE_ID_SIDEWINDER_GV	0x003b
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 2ba6bf69b7d0..bcfaf32d9e5e 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -303,6 +303,7 @@ static enum power_supply_property hidinput_battery_props[] = {
 
 #define HID_BATTERY_QUIRK_PERCENT	(1 << 0) /* always reports percent */
 #define HID_BATTERY_QUIRK_FEATURE	(1 << 1) /* ask for feature report */
+#define HID_BATTERY_QUIRK_IGNORE	(1 << 2) /* completely ignore the battery */
 
 static const struct hid_device_id hid_battery_quirks[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
@@ -320,6 +321,9 @@ static const struct hid_device_id hid_battery_quirks[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 		USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
 	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
+		USB_DEVICE_ID_ELECOM_BM084),
+	  HID_BATTERY_QUIRK_IGNORE },
 	{}
 };
 
@@ -408,6 +412,14 @@ static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
 	if (dev->battery != NULL)
 		goto out;	/* already initialized? */
 
+	quirks = find_battery_quirk(dev);
+
+	hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
+		dev->bus, dev->vendor, dev->product, dev->version, quirks);
+
+	if (quirks & HID_BATTERY_QUIRK_IGNORE)
+		goto out;
+
 	psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
 	if (psy_desc == NULL)
 		goto out;
@@ -424,11 +436,6 @@ static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
 	psy_desc->use_for_apm = 0;
 	psy_desc->get_property = hidinput_get_battery_property;
 
-	quirks = find_battery_quirk(dev);
-
-	hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
-		dev->bus, dev->vendor, dev->product, dev->version, quirks);
-
 	min = field->logical_minimum;
 	max = field->logical_maximum;
 
@@ -960,6 +967,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		goto ignore;
 
 	case HID_UP_LOGIVENDOR:
+		/* intentional fallback */
+	case HID_UP_LOGIVENDOR2:
+		/* intentional fallback */
+	case HID_UP_LOGIVENDOR3:
 		goto ignore;
 
 	case HID_UP_PID:
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index 8979f1fd5208..0125e356bd8d 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -220,7 +220,7 @@ static ssize_t attr_fn_lock_show_cptkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", cptkbd_data->fn_lock);
@@ -231,7 +231,7 @@ static ssize_t attr_fn_lock_store_cptkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 	int value;
 
@@ -250,7 +250,7 @@ static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n",
@@ -262,7 +262,7 @@ static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 	int value;
 
@@ -387,7 +387,7 @@ static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
@@ -398,7 +398,7 @@ static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -417,7 +417,7 @@ static ssize_t attr_dragging_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
@@ -428,7 +428,7 @@ static ssize_t attr_dragging_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -447,7 +447,7 @@ static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
@@ -458,7 +458,7 @@ static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -477,7 +477,7 @@ static ssize_t attr_select_right_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
@@ -488,7 +488,7 @@ static ssize_t attr_select_right_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -507,7 +507,7 @@ static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n",
@@ -519,7 +519,7 @@ static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -536,7 +536,7 @@ static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n",
@@ -548,7 +548,7 @@ static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
 		const char *buf,
 		size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int value;
 
@@ -609,7 +609,7 @@ static enum led_brightness lenovo_led_brightness_get_tpkbd(
 			struct led_classdev *led_cdev)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	int led_nr = 0;
 
@@ -625,7 +625,7 @@ static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev,
 			enum led_brightness value)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 	struct hid_report *report;
 	int led_nr = 0;
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index fbddcb37ae98..af3a8ec8a746 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -33,8 +33,6 @@
 #include "hid-lg4ff.h"
 #include "hid-ids.h"
 
-#define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
-
 #define LG4FF_MMODE_IS_MULTIMODE 0
 #define LG4FF_MMODE_SWITCHED 1
 #define LG4FF_MMODE_NOT_MULTIMODE 2
@@ -1020,7 +1018,7 @@ static void lg4ff_led_set_brightness(struct led_classdev *led_cdev,
 			enum led_brightness value)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);
 	struct lg4ff_device_entry *entry;
 	int i, state = 0;
@@ -1055,7 +1053,7 @@ static void lg4ff_led_set_brightness(struct led_classdev *led_cdev,
 static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct lg_drv_data *drv_data = hid_get_drvdata(hid);
 	struct lg4ff_device_entry *entry;
 	int i, value = 0;
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 5fd97860aec4..bd2ab476c65e 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -40,18 +40,22 @@ MODULE_PARM_DESC(disable_tap_to_click,
 
 #define REPORT_ID_HIDPP_SHORT			0x10
 #define REPORT_ID_HIDPP_LONG			0x11
+#define REPORT_ID_HIDPP_VERY_LONG		0x12
 
 #define HIDPP_REPORT_SHORT_LENGTH		7
 #define HIDPP_REPORT_LONG_LENGTH		20
+#define HIDPP_REPORT_VERY_LONG_LENGTH		64
 
 #define HIDPP_QUIRK_CLASS_WTP			BIT(0)
 #define HIDPP_QUIRK_CLASS_M560			BIT(1)
 #define HIDPP_QUIRK_CLASS_K400			BIT(2)
+#define HIDPP_QUIRK_CLASS_G920			BIT(3)
 
 /* bits 2..20 are reserved for classes */
 #define HIDPP_QUIRK_CONNECT_EVENTS		BIT(21)
 #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS	BIT(22)
 #define HIDPP_QUIRK_NO_HIDINPUT			BIT(23)
+#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS	BIT(24)
 
 #define HIDPP_QUIRK_DELAYED_INIT		(HIDPP_QUIRK_NO_HIDINPUT | \
 						 HIDPP_QUIRK_CONNECT_EVENTS)
@@ -81,13 +85,13 @@ MODULE_PARM_DESC(disable_tap_to_click,
 struct fap {
 	u8 feature_index;
 	u8 funcindex_clientid;
-	u8 params[HIDPP_REPORT_LONG_LENGTH - 4U];
+	u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
 };
 
 struct rap {
 	u8 sub_id;
 	u8 reg_address;
-	u8 params[HIDPP_REPORT_LONG_LENGTH - 4U];
+	u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U];
 };
 
 struct hidpp_report {
@@ -144,8 +148,11 @@ static void hidpp_connect_event(struct hidpp_device *hidpp_dev);
 static int __hidpp_send_report(struct hid_device *hdev,
 				struct hidpp_report *hidpp_report)
 {
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
 	int fields_count, ret;
 
+	hidpp = hid_get_drvdata(hdev);
+
 	switch (hidpp_report->report_id) {
 	case REPORT_ID_HIDPP_SHORT:
 		fields_count = HIDPP_REPORT_SHORT_LENGTH;
@@ -153,6 +160,9 @@ static int __hidpp_send_report(struct hid_device *hdev,
 	case REPORT_ID_HIDPP_LONG:
 		fields_count = HIDPP_REPORT_LONG_LENGTH;
 		break;
+	case REPORT_ID_HIDPP_VERY_LONG:
+		fields_count = HIDPP_REPORT_VERY_LONG_LENGTH;
+		break;
 	default:
 		return -ENODEV;
 	}
@@ -163,9 +173,13 @@ static int __hidpp_send_report(struct hid_device *hdev,
 	 */
 	hidpp_report->device_index = 0xff;
 
-	ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
-		(u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
-		HID_REQ_SET_REPORT);
+	if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) {
+		ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count);
+	} else {
+		ret = hid_hw_raw_request(hdev, hidpp_report->report_id,
+			(u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT,
+			HID_REQ_SET_REPORT);
+	}
 
 	return ret == fields_count ? 0 : -1;
 }
@@ -217,8 +231,9 @@ static int hidpp_send_message_sync(struct hidpp_device *hidpp,
 		goto exit;
 	}
 
-	if (response->report_id == REPORT_ID_HIDPP_LONG &&
-	    response->fap.feature_index == HIDPP20_ERROR) {
+	if ((response->report_id == REPORT_ID_HIDPP_LONG ||
+			response->report_id == REPORT_ID_HIDPP_VERY_LONG) &&
+			response->fap.feature_index == HIDPP20_ERROR) {
 		ret = response->fap.params[1];
 		dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret);
 		goto exit;
@@ -243,7 +258,11 @@ static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp,
 	message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
 	if (!message)
 		return -ENOMEM;
-	message->report_id = REPORT_ID_HIDPP_LONG;
+
+	if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4))
+		message->report_id = REPORT_ID_HIDPP_VERY_LONG;
+	else
+		message->report_id = REPORT_ID_HIDPP_LONG;
 	message->fap.feature_index = feat_index;
 	message->fap.funcindex_clientid = funcindex_clientid;
 	memcpy(&message->fap.params, params, param_count);
@@ -258,13 +277,23 @@ static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev,
 	struct hidpp_report *response)
 {
 	struct hidpp_report *message;
-	int ret;
+	int ret, max_count;
 
-	if ((report_id != REPORT_ID_HIDPP_SHORT) &&
-	    (report_id != REPORT_ID_HIDPP_LONG))
+	switch (report_id) {
+	case REPORT_ID_HIDPP_SHORT:
+		max_count = HIDPP_REPORT_SHORT_LENGTH - 4;
+		break;
+	case REPORT_ID_HIDPP_LONG:
+		max_count = HIDPP_REPORT_LONG_LENGTH - 4;
+		break;
+	case REPORT_ID_HIDPP_VERY_LONG:
+		max_count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
+		break;
+	default:
 		return -EINVAL;
+	}
 
-	if (param_count > sizeof(message->rap.params))
+	if (param_count > max_count)
 		return -EINVAL;
 
 	message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL);
@@ -508,10 +537,19 @@ static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp,
 	if (ret)
 		return ret;
 
-	if (response.report_id == REPORT_ID_HIDPP_LONG)
+	switch (response.report_id) {
+	case REPORT_ID_HIDPP_VERY_LONG:
+		count = HIDPP_REPORT_VERY_LONG_LENGTH - 4;
+		break;
+	case REPORT_ID_HIDPP_LONG:
 		count = HIDPP_REPORT_LONG_LENGTH - 4;
-	else
+		break;
+	case REPORT_ID_HIDPP_SHORT:
 		count = HIDPP_REPORT_SHORT_LENGTH - 4;
+		break;
+	default:
+		return -EPROTO;
+	}
 
 	if (len_buf < count)
 		count = len_buf;
@@ -1257,6 +1295,131 @@ static int k400_connect(struct hid_device *hdev, bool connected)
 	return k400_disable_tap_to_click(hidpp);
 }
 
+/* ------------------------------------------------------------------------- */
+/* Logitech G920 Driving Force Racing Wheel for Xbox One                     */
+/* ------------------------------------------------------------------------- */
+
+#define HIDPP_PAGE_G920_FORCE_FEEDBACK			0x8123
+
+/* Using session ID = 1 */
+#define CMD_G920_FORCE_GET_APERTURE			0x51
+#define CMD_G920_FORCE_SET_APERTURE			0x61
+
+struct g920_private_data {
+	u8 force_feature;
+	u16 range;
+};
+
+static ssize_t g920_range_show(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct hid_device *hid = to_hid_device(dev);
+	struct hidpp_device *hidpp = hid_get_drvdata(hid);
+	struct g920_private_data *pdata;
+
+	pdata = hidpp->private_data;
+	if (!pdata) {
+		hid_err(hid, "Private driver data not found!\n");
+		return -EINVAL;
+	}
+
+	return scnprintf(buf, PAGE_SIZE, "%u\n", pdata->range);
+}
+
+static ssize_t g920_range_store(struct device *dev, struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct hid_device *hid = to_hid_device(dev);
+	struct hidpp_device *hidpp = hid_get_drvdata(hid);
+	struct g920_private_data *pdata;
+	struct hidpp_report response;
+	u8 params[2];
+	int ret;
+	u16 range = simple_strtoul(buf, NULL, 10);
+
+	pdata = hidpp->private_data;
+	if (!pdata) {
+		hid_err(hid, "Private driver data not found!\n");
+		return -EINVAL;
+	}
+
+	if (range < 180)
+		range = 180;
+	else if (range > 900)
+		range = 900;
+
+	params[0] = range >> 8;
+	params[1] = range & 0x00FF;
+
+	ret = hidpp_send_fap_command_sync(hidpp, pdata->force_feature,
+		CMD_G920_FORCE_SET_APERTURE, params, 2, &response);
+	if (ret)
+		return ret;
+
+	pdata->range = range;
+	return count;
+}
+
+static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, g920_range_show, g920_range_store);
+
+static int g920_allocate(struct hid_device *hdev)
+{
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+	struct g920_private_data *pdata;
+
+	pdata = devm_kzalloc(&hdev->dev, sizeof(struct g920_private_data),
+			GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	hidpp->private_data = pdata;
+
+	return 0;
+}
+
+static int g920_get_config(struct hidpp_device *hidpp)
+{
+	struct g920_private_data *pdata = hidpp->private_data;
+	struct hidpp_report response;
+	u8 feature_type;
+	u8 feature_index;
+	int ret;
+
+	pdata = hidpp->private_data;
+	if (!pdata) {
+		hid_err(hidpp->hid_dev, "Private driver data not found!\n");
+		return -EINVAL;
+	}
+
+	/* Find feature and store for later use */
+	ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK,
+		&feature_index, &feature_type);
+	if (ret)
+		return ret;
+
+	pdata->force_feature = feature_index;
+
+	/* Read current Range */
+	ret = hidpp_send_fap_command_sync(hidpp, feature_index,
+		CMD_G920_FORCE_GET_APERTURE, NULL, 0, &response);
+	if (ret > 0) {
+		hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
+			__func__, ret);
+		return -EPROTO;
+	}
+	if (ret)
+		return ret;
+
+	pdata->range = get_unaligned_be16(&response.fap.params[0]);
+
+	/* Create sysfs interface */
+	ret = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range);
+	if (ret)
+		hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d\n", ret);
+
+	return 0;
+}
+
 /* -------------------------------------------------------------------------- */
 /* Generic HID++ devices                                                      */
 /* -------------------------------------------------------------------------- */
@@ -1276,6 +1439,25 @@ static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
+static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
+
+	/* Ensure that Logitech G920 is not given a default fuzz/flat value */
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		if (usage->type == EV_ABS && (usage->code == ABS_X ||
+				usage->code == ABS_Y || usage->code == ABS_Z ||
+				usage->code == ABS_RZ)) {
+			field->application = HID_GD_MULTIAXIS;
+		}
+	}
+
+	return 0;
+}
+
+
 static void hidpp_populate_input(struct hidpp_device *hidpp,
 		struct input_dev *input, bool origin_is_hid_core)
 {
@@ -1347,6 +1529,14 @@ static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report,
 
 	/* Generic HID++ processing. */
 	switch (data[0]) {
+	case REPORT_ID_HIDPP_VERY_LONG:
+		if (size != HIDPP_REPORT_VERY_LONG_LENGTH) {
+			hid_err(hdev, "received hid++ report of bad size (%d)",
+				size);
+			return 1;
+		}
+		ret = hidpp_raw_hidpp_event(hidpp, data, size);
+		break;
 	case REPORT_ID_HIDPP_LONG:
 		if (size != HIDPP_REPORT_LONG_LENGTH) {
 			hid_err(hdev, "received hid++ report of bad size (%d)",
@@ -1393,10 +1583,12 @@ static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying)
 	else
 		name = hidpp_get_device_name(hidpp);
 
-	if (!name)
+	if (!name) {
 		hid_err(hdev, "unable to retrieve the name of the device");
-	else
+	} else {
+		dbg_hid("HID++: Got name: %s\n", name);
 		snprintf(hdev->name, sizeof(hdev->name), "%s", name);
+	}
 
 	kfree(name);
 }
@@ -1547,6 +1739,10 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		ret = k400_allocate(hdev);
 		if (ret)
 			goto allocate_fail;
+	} else if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		ret = g920_allocate(hdev);
+		if (ret)
+			goto allocate_fail;
 	}
 
 	INIT_WORK(&hidpp->work, delayed_work_cb);
@@ -1559,6 +1755,25 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto hid_parse_fail;
 	}
 
+	if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
+		connect_mask &= ~HID_CONNECT_HIDINPUT;
+
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		ret = hid_hw_start(hdev, connect_mask);
+		if (ret) {
+			hid_err(hdev, "hw start failed\n");
+			goto hid_hw_start_fail;
+		}
+		ret = hid_hw_open(hdev);
+		if (ret < 0) {
+			dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
+				__func__, ret);
+			hid_hw_stop(hdev);
+			goto hid_hw_start_fail;
+		}
+	}
+
+
 	/* Allow incoming packets */
 	hid_device_io_start(hdev);
 
@@ -1567,8 +1782,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		if (!connected) {
 			ret = -ENODEV;
 			hid_err(hdev, "Device not connected");
-			hid_device_io_stop(hdev);
-			goto hid_parse_fail;
+			goto hid_hw_open_failed;
 		}
 
 		hid_info(hdev, "HID++ %u.%u device connected.\n",
@@ -1581,19 +1795,22 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) {
 		ret = wtp_get_config(hidpp);
 		if (ret)
-			goto hid_parse_fail;
+			goto hid_hw_open_failed;
+	} else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
+		ret = g920_get_config(hidpp);
+		if (ret)
+			goto hid_hw_open_failed;
 	}
 
 	/* Block incoming packets */
 	hid_device_io_stop(hdev);
 
-	if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT)
-		connect_mask &= ~HID_CONNECT_HIDINPUT;
-
-	ret = hid_hw_start(hdev, connect_mask);
-	if (ret) {
-		hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
-		goto hid_hw_start_fail;
+	if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) {
+		ret = hid_hw_start(hdev, connect_mask);
+		if (ret) {
+			hid_err(hdev, "%s:hid_hw_start returned error\n", __func__);
+			goto hid_hw_start_fail;
+		}
 	}
 
 	if (hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) {
@@ -1605,6 +1822,13 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	return ret;
 
+hid_hw_open_failed:
+	hid_device_io_stop(hdev);
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		device_remove_file(&hdev->dev, &dev_attr_range);
+		hid_hw_close(hdev);
+		hid_hw_stop(hdev);
+	}
 hid_hw_start_fail:
 hid_parse_fail:
 	cancel_work_sync(&hidpp->work);
@@ -1618,9 +1842,13 @@ static void hidpp_remove(struct hid_device *hdev)
 {
 	struct hidpp_device *hidpp = hid_get_drvdata(hdev);
 
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) {
+		device_remove_file(&hdev->dev, &dev_attr_range);
+		hid_hw_close(hdev);
+	}
+	hid_hw_stop(hdev);
 	cancel_work_sync(&hidpp->work);
 	mutex_destroy(&hidpp->send_mutex);
-	hid_hw_stop(hdev);
 }
 
 static const struct hid_device_id hidpp_devices[] = {
@@ -1648,6 +1876,9 @@ static const struct hid_device_id hidpp_devices[] = {
 
 	{ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
 		USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
+
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL),
+		.driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS},
 	{}
 };
 
@@ -1661,6 +1892,7 @@ static struct hid_driver hidpp_driver = {
 	.raw_event = hidpp_raw_event,
 	.input_configured = hidpp_input_configured,
 	.input_mapping = hidpp_input_mapping,
+	.input_mapped = hidpp_input_mapped,
 };
 
 module_hid_driver(hidpp_driver);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3d664d01305e..296d4991560e 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -272,7 +272,7 @@ static ssize_t mt_show_quirks(struct device *dev,
 			   struct device_attribute *attr,
 			   char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct mt_device *td = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%u\n", td->mtclass.quirks);
@@ -282,7 +282,7 @@ static ssize_t mt_set_quirks(struct device *dev,
 			  struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct mt_device *td = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -357,8 +357,19 @@ static void mt_feature_mapping(struct hid_device *hdev,
 			break;
 		}
 
-		td->inputmode = field->report->id;
-		td->inputmode_index = usage->usage_index;
+		if (td->inputmode < 0) {
+			td->inputmode = field->report->id;
+			td->inputmode_index = usage->usage_index;
+		} else {
+			/*
+			 * Some elan panels wrongly declare 2 input mode
+			 * features, and silently ignore when we set the
+			 * value in the second field. Skip the second feature
+			 * and hope for the best.
+			 */
+			dev_info(&hdev->dev,
+				 "Ignoring the extra HID_DG_INPUTMODE\n");
+		}
 
 		break;
 	case HID_DG_CONTACTMAX:
@@ -486,6 +497,11 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_CONFIDENCE:
+			if (cls->name == MT_CLS_WIN_8 &&
+				field->application == HID_DG_TOUCHPAD) {
+				cls->quirks &= ~MT_QUIRK_ALWAYS_VALID;
+				cls->quirks |= MT_QUIRK_VALID_IS_CONFIDENCE;
+			}
 			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_TIPSWITCH:
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 756d1ef9bd99..1b0084d4af2e 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -173,7 +173,7 @@ static ssize_t show_phys_width(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->sensor_physical_width);
@@ -185,7 +185,7 @@ static ssize_t show_phys_height(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->sensor_physical_height);
@@ -197,7 +197,7 @@ static ssize_t show_log_width(struct device *dev,
 			      struct device_attribute *attr,
 			      char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->sensor_logical_width);
@@ -209,7 +209,7 @@ static ssize_t show_log_height(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->sensor_logical_height);
@@ -221,7 +221,7 @@ static ssize_t show_min_width(struct device *dev,
 			      struct device_attribute *attr,
 			      char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->min_width *
@@ -233,7 +233,7 @@ static ssize_t set_min_width(struct device *dev,
 			     struct device_attribute *attr,
 			     const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -256,7 +256,7 @@ static ssize_t show_min_height(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->min_height *
@@ -268,7 +268,7 @@ static ssize_t set_min_height(struct device *dev,
 			      struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -292,7 +292,7 @@ static ssize_t show_activate_slack(struct device *dev,
 				   struct device_attribute *attr,
 				   char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->activate_slack);
@@ -302,7 +302,7 @@ static ssize_t set_activate_slack(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -325,7 +325,7 @@ static ssize_t show_activation_width(struct device *dev,
 				     struct device_attribute *attr,
 				     char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->activation_width *
@@ -337,7 +337,7 @@ static ssize_t set_activation_width(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -361,7 +361,7 @@ static ssize_t show_activation_height(struct device *dev,
 				      struct device_attribute *attr,
 				      char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", nd->activation_height *
@@ -373,7 +373,7 @@ static ssize_t set_activation_height(struct device *dev,
 				     struct device_attribute *attr,
 				     const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
@@ -397,7 +397,7 @@ static ssize_t show_deactivate_slack(struct device *dev,
 				     struct device_attribute *attr,
 				     char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	return sprintf(buf, "%d\n", -nd->deactivate_slack);
@@ -407,7 +407,7 @@ static ssize_t set_deactivate_slack(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct ntrig_data *nd = hid_get_drvdata(hdev);
 
 	unsigned long val;
diff --git a/drivers/hid/hid-picolcd_leds.c b/drivers/hid/hid-picolcd_leds.c
index e994f9c29012..a802b4f49c7b 100644
--- a/drivers/hid/hid-picolcd_leds.c
+++ b/drivers/hid/hid-picolcd_leds.c
@@ -66,7 +66,7 @@ static void picolcd_led_set_brightness(struct led_classdev *led_cdev,
 	int i, state = 0;
 
 	dev  = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
+	hdev = to_hid_device(dev);
 	data = hid_get_drvdata(hdev);
 	if (!data)
 		return;
@@ -93,7 +93,7 @@ static enum led_brightness picolcd_led_get_brightness(struct led_classdev *led_c
 	int i, value = 0;
 
 	dev  = led_cdev->dev->parent;
-	hdev = container_of(dev, struct hid_device, dev);
+	hdev = to_hid_device(dev);
 	data = hid_get_drvdata(hdev);
 	for (i = 0; i < 8; i++)
 		if (led_cdev == data->led[i]) {
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 3a207c0ac0e3..f095bf8a3aa9 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -103,7 +103,7 @@ MODULE_PARM_DESC(enable, "Enable for the PC-MIDI virtual audio driver");
 static ssize_t show_channel(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read channel=%u\n", pk->pm->midi_channel);
@@ -116,7 +116,7 @@ static ssize_t show_channel(struct device *dev,
 static ssize_t store_channel(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	unsigned channel = 0;
@@ -140,7 +140,7 @@ static struct device_attribute *sysfs_device_attr_channel = {
 static ssize_t show_sustain(struct device *dev,
  struct device_attribute *attr, char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read sustain=%u\n", pk->pm->midi_sustain);
@@ -153,7 +153,7 @@ static ssize_t show_sustain(struct device *dev,
 static ssize_t store_sustain(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	unsigned sustain = 0;
@@ -179,7 +179,7 @@ static struct device_attribute *sysfs_device_attr_sustain = {
 static ssize_t show_octave(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	dbg_hid("pcmidi sysfs read octave=%d\n", pk->pm->midi_octave);
@@ -192,7 +192,7 @@ static ssize_t show_octave(struct device *dev,
 static ssize_t store_octave(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct pk_device *pk = hid_get_drvdata(hdev);
 
 	int octave = 0;
diff --git a/drivers/hid/hid-roccat-arvo.c b/drivers/hid/hid-roccat-arvo.c
index 1948208fe038..329c5d1270f9 100644
--- a/drivers/hid/hid-roccat-arvo.c
+++ b/drivers/hid/hid-roccat-arvo.c
@@ -191,8 +191,7 @@ static ssize_t arvo_sysfs_write(struct file *fp,
 		struct kobject *kobj, void const *buf,
 		loff_t off, size_t count, size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -211,8 +210,7 @@ static ssize_t arvo_sysfs_read(struct file *fp,
 		struct kobject *kobj, void *buf, loff_t off,
 		size_t count, size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index 02e28e9f4ea7..8155ac5fede2 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -134,8 +134,7 @@ ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -158,8 +157,7 @@ ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index bc62ed91e451..02db537f8f3e 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -121,8 +121,7 @@ static ssize_t isku_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -144,8 +143,7 @@ static ssize_t isku_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index c29265055ac1..bf4675a27396 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -269,8 +269,7 @@ static int kone_get_firmware_version(struct usb_device *usb_dev, int *result)
 static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
 		struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count) {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
 
 	if (off >= sizeof(struct kone_settings))
@@ -294,8 +293,7 @@ static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
 static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
 		struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count) {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval = 0, difference, old_profile;
@@ -332,8 +330,7 @@ static BIN_ATTR(settings, 0660, kone_sysfs_read_settings,
 static ssize_t kone_sysfs_read_profilex(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr,
 		char *buf, loff_t off, size_t count) {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
 
 	if (off >= sizeof(struct kone_profile))
@@ -353,8 +350,7 @@ static ssize_t kone_sysfs_read_profilex(struct file *fp,
 static ssize_t kone_sysfs_write_profilex(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr,
 		char *buf, loff_t off, size_t count) {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	struct kone_profile *profile;
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 5e99fcdc71b9..09e8fc72aa1d 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -87,8 +87,7 @@ static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -113,8 +112,7 @@ static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -193,8 +191,7 @@ static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
@@ -212,8 +209,7 @@ static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c
index 966047711fbf..43617fb28b87 100644
--- a/drivers/hid/hid-roccat-kovaplus.c
+++ b/drivers/hid/hid-roccat-kovaplus.c
@@ -128,8 +128,7 @@ static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -154,8 +153,7 @@ static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -221,8 +219,7 @@ static ssize_t kovaplus_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
@@ -240,8 +237,7 @@ static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c
index 65e2e76bf2fe..ac1a7313e259 100644
--- a/drivers/hid/hid-roccat-lua.c
+++ b/drivers/hid/hid-roccat-lua.c
@@ -30,7 +30,7 @@ static ssize_t lua_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -52,7 +52,7 @@ static ssize_t lua_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 47d7e74231e5..b30aa7b82bf8 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -90,8 +90,7 @@ static ssize_t pyra_sysfs_read(struct file *fp, struct kobject *kobj,
 		char *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -116,8 +115,7 @@ static ssize_t pyra_sysfs_write(struct file *fp, struct kobject *kobj,
 		void const *buf, loff_t off, size_t count,
 		size_t real_size, uint command)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
@@ -191,8 +189,7 @@ static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
@@ -210,8 +207,7 @@ static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	ssize_t retval;
 
@@ -248,8 +244,7 @@ static ssize_t pyra_sysfs_write_settings(struct file *fp,
 		struct kobject *kobj, struct bin_attribute *attr, char *buf,
 		loff_t off, size_t count)
 {
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
+	struct device *dev = kobj_to_dev(kobj)->parent->parent;
 	struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval = 0;
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 92870cdb52d9..58ed8f25ab21 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -794,6 +794,9 @@ static const struct hid_device_id sensor_hub_devices[] = {
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
 			USB_DEVICE_ID_ITE_LENOVO_YOGA2),
 			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
+			USB_DEVICE_ID_ITE_LENOVO_YOGA900),
+			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID,
 		     HID_ANY_ID) },
 	{ }
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 774cd2210566..9b8db0e0ef1c 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -1028,6 +1028,7 @@ struct sony_sc {
 	struct led_classdev *leds[MAX_LEDS];
 	unsigned long quirks;
 	struct work_struct state_worker;
+	void(*send_output_report)(struct sony_sc*);
 	struct power_supply *battery;
 	struct power_supply_desc battery_desc;
 	int device_id;
@@ -1044,6 +1045,7 @@ struct sony_sc {
 	__u8 battery_charging;
 	__u8 battery_capacity;
 	__u8 led_state[MAX_LEDS];
+	__u8 resume_led_state[MAX_LEDS];
 	__u8 led_delay_on[MAX_LEDS];
 	__u8 led_delay_off[MAX_LEDS];
 	__u8 led_count;
@@ -1137,11 +1139,11 @@ static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	 * the gyroscope values to corresponding axes so we need a
 	 * modified one.
 	 */
-	if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && *rsize == 467) {
+	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
 		hid_info(hdev, "Using modified Dualshock 4 report descriptor with gyroscope axes\n");
 		rdesc = dualshock4_usb_rdesc;
 		*rsize = sizeof(dualshock4_usb_rdesc);
-	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && *rsize == 357) {
+	} else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
 		hid_info(hdev, "Using modified Dualshock 4 Bluetooth report descriptor\n");
 		rdesc = dualshock4_bt_rdesc;
 		*rsize = sizeof(dualshock4_bt_rdesc);
@@ -1549,7 +1551,7 @@ static void sony_led_set_brightness(struct led_classdev *led,
 				    enum led_brightness value)
 {
 	struct device *dev = led->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct sony_sc *drv_data;
 
 	int n;
@@ -1591,7 +1593,7 @@ static void sony_led_set_brightness(struct led_classdev *led,
 static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
 {
 	struct device *dev = led->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct sony_sc *drv_data;
 
 	int n;
@@ -1614,7 +1616,7 @@ static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
 				unsigned long *delay_off)
 {
 	struct device *dev = led->dev->parent;
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct sony_sc *drv_data = hid_get_drvdata(hdev);
 	int n;
 	__u8 new_on, new_off;
@@ -1789,7 +1791,7 @@ error_leds:
 	return ret;
 }
 
-static void sixaxis_state_worker(struct work_struct *work)
+static void sixaxis_send_output_report(struct sony_sc *sc)
 {
 	static const union sixaxis_output_report_01 default_report = {
 		.buf = {
@@ -1803,7 +1805,6 @@ static void sixaxis_state_worker(struct work_struct *work)
 			0x00, 0x00, 0x00, 0x00, 0x00
 		}
 	};
-	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
 	struct sixaxis_output_report *report =
 		(struct sixaxis_output_report *)sc->output_report_dmabuf;
 	int n;
@@ -1846,9 +1847,8 @@ static void sixaxis_state_worker(struct work_struct *work)
 			HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
 }
 
-static void dualshock4_state_worker(struct work_struct *work)
+static void dualshock4_send_output_report(struct sony_sc *sc)
 {
-	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
 	struct hid_device *hdev = sc->hdev;
 	__u8 *buf = sc->output_report_dmabuf;
 	int offset;
@@ -1893,9 +1893,8 @@ static void dualshock4_state_worker(struct work_struct *work)
 				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
 }
 
-static void motion_state_worker(struct work_struct *work)
+static void motion_send_output_report(struct sony_sc *sc)
 {
-	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
 	struct hid_device *hdev = sc->hdev;
 	struct motion_output_report_02 *report =
 		(struct motion_output_report_02 *)sc->output_report_dmabuf;
@@ -1914,6 +1913,18 @@ static void motion_state_worker(struct work_struct *work)
 	hid_hw_output_report(hdev, (__u8 *)report, MOTION_REPORT_0x02_SIZE);
 }
 
+static inline void sony_send_output_report(struct sony_sc *sc)
+{
+	if (sc->send_output_report)
+		sc->send_output_report(sc);
+}
+
+static void sony_state_worker(struct work_struct *work)
+{
+	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
+	sc->send_output_report(sc);
+}
+
 static int sony_allocate_output_report(struct sony_sc *sc)
 {
 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
@@ -2241,11 +2252,13 @@ static void sony_release_device_id(struct sony_sc *sc)
 	}
 }
 
-static inline void sony_init_work(struct sony_sc *sc,
-					void (*worker)(struct work_struct *))
+static inline void sony_init_output_report(struct sony_sc *sc,
+				void(*send_output_report)(struct sony_sc*))
 {
+	sc->send_output_report = send_output_report;
+
 	if (!sc->worker_initialized)
-		INIT_WORK(&sc->state_worker, worker);
+		INIT_WORK(&sc->state_worker, sony_state_worker);
 
 	sc->worker_initialized = 1;
 }
@@ -2319,7 +2332,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
 		ret = sixaxis_set_operational_usb(hdev);
-		sony_init_work(sc, sixaxis_state_worker);
+		sony_init_output_report(sc, sixaxis_send_output_report);
 	} else if ((sc->quirks & SIXAXIS_CONTROLLER_BT) ||
 			(sc->quirks & NAVIGATION_CONTROLLER_BT)) {
 		/*
@@ -2328,7 +2341,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		 */
 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
 		ret = sixaxis_set_operational_bt(hdev);
-		sony_init_work(sc, sixaxis_state_worker);
+		sony_init_output_report(sc, sixaxis_send_output_report);
 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
 		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
 			/*
@@ -2343,9 +2356,9 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			}
 		}
 
-		sony_init_work(sc, dualshock4_state_worker);
+		sony_init_output_report(sc, dualshock4_send_output_report);
 	} else if (sc->quirks & MOTION_CONTROLLER) {
-		sony_init_work(sc, motion_state_worker);
+		sony_init_output_report(sc, motion_send_output_report);
 	} else {
 		ret = 0;
 	}
@@ -2421,6 +2434,56 @@ static void sony_remove(struct hid_device *hdev)
 	hid_hw_stop(hdev);
 }
 
+#ifdef CONFIG_PM
+
+static int sony_suspend(struct hid_device *hdev, pm_message_t message)
+{
+	/*
+	 * On suspend save the current LED state,
+	 * stop running force-feedback and blank the LEDS.
+         */
+	if (SONY_LED_SUPPORT || SONY_FF_SUPPORT) {
+		struct sony_sc *sc = hid_get_drvdata(hdev);
+
+#ifdef CONFIG_SONY_FF
+		sc->left = sc->right = 0;
+#endif
+
+		memcpy(sc->resume_led_state, sc->led_state,
+			sizeof(sc->resume_led_state));
+		memset(sc->led_state, 0, sizeof(sc->led_state));
+
+		sony_send_output_report(sc);
+	}
+
+	return 0;
+}
+
+static int sony_resume(struct hid_device *hdev)
+{
+	/* Restore the state of controller LEDs on resume */
+	if (SONY_LED_SUPPORT) {
+		struct sony_sc *sc = hid_get_drvdata(hdev);
+
+		memcpy(sc->led_state, sc->resume_led_state,
+			sizeof(sc->led_state));
+
+		/*
+		 * The Sixaxis and navigation controllers on USB need to be
+		 * reinitialized on resume or they won't behave properly.
+		 */
+		if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
+			(sc->quirks & NAVIGATION_CONTROLLER_USB))
+			sixaxis_set_operational_usb(sc->hdev);
+
+		sony_set_leds(sc);
+	}
+
+	return 0;
+}
+
+#endif
+
 static const struct hid_device_id sony_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
 		.driver_data = SIXAXIS_CONTROLLER_USB },
@@ -2470,7 +2533,13 @@ static struct hid_driver sony_driver = {
 	.probe            = sony_probe,
 	.remove           = sony_remove,
 	.report_fixup     = sony_report_fixup,
-	.raw_event        = sony_raw_event
+	.raw_event        = sony_raw_event,
+
+#ifdef CONFIG_PM
+	.suspend          = sony_suspend,
+	.resume	          = sony_resume,
+	.reset_resume     = sony_resume,
+#endif
 };
 
 static int __init sony_init(void)
diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index 3edd4ac36494..ec18768b124a 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -141,7 +141,7 @@ static void steelseries_srws1_led_all_set_brightness(struct led_classdev *led_cd
 			enum led_brightness value)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct steelseries_srws1_data *drv_data = hid_get_drvdata(hid);
 
 	if (!drv_data) {
@@ -160,7 +160,7 @@ static void steelseries_srws1_led_all_set_brightness(struct led_classdev *led_cd
 static enum led_brightness steelseries_srws1_led_all_get_brightness(struct led_classdev *led_cdev)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct steelseries_srws1_data *drv_data;
 
 	drv_data = hid_get_drvdata(hid);
@@ -177,7 +177,7 @@ static void steelseries_srws1_led_set_brightness(struct led_classdev *led_cdev,
 			enum led_brightness value)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct steelseries_srws1_data *drv_data = hid_get_drvdata(hid);
 	int i, state = 0;
 
@@ -205,7 +205,7 @@ static void steelseries_srws1_led_set_brightness(struct led_classdev *led_cdev,
 static enum led_brightness steelseries_srws1_led_get_brightness(struct led_classdev *led_cdev)
 {
 	struct device *dev = led_cdev->dev->parent;
-	struct hid_device *hid = container_of(dev, struct hid_device, dev);
+	struct hid_device *hid = to_hid_device(dev);
 	struct steelseries_srws1_data *drv_data;
 	int i, value = 0;
 
diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index 05e23c417d50..4390eee2ce84 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -296,14 +296,12 @@ static const struct wiimod_ops wiimod_battery = {
 
 static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
 {
-	struct wiimote_data *wdata;
 	struct device *dev = led_dev->dev->parent;
+	struct wiimote_data *wdata = dev_to_wii(dev);
 	int i;
 	unsigned long flags;
 	bool value = false;
 
-	wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
-
 	for (i = 0; i < 4; ++i) {
 		if (wdata->leds[i] == led_dev) {
 			spin_lock_irqsave(&wdata->state.lock, flags);
@@ -319,14 +317,12 @@ static enum led_brightness wiimod_led_get(struct led_classdev *led_dev)
 static void wiimod_led_set(struct led_classdev *led_dev,
 			   enum led_brightness value)
 {
-	struct wiimote_data *wdata;
 	struct device *dev = led_dev->dev->parent;
+	struct wiimote_data *wdata = dev_to_wii(dev);
 	int i;
 	unsigned long flags;
 	__u8 state, flag;
 
-	wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
-
 	for (i = 0; i < 4; ++i) {
 		if (wdata->leds[i] == led_dev) {
 			flag = WIIPROTO_FLAG_LED(i + 1);
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 875694d43e4d..510ca77fe14e 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -256,8 +256,7 @@ enum wiiproto_reqs {
 	WIIPROTO_REQ_MAX
 };
 
-#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
-									dev))
+#define dev_to_wii(pdev) hid_get_drvdata(to_hid_device(pdev))
 
 void __wiimote_schedule(struct wiimote_data *wdata);
 
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 10bd8e6e4c9c..b9216938a718 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -151,6 +151,7 @@ struct i2c_hid {
 	struct i2c_hid_platform_data pdata;
 
 	bool			irq_wake_enabled;
+	struct mutex		reset_lock;
 };
 
 static int __i2c_hid_command(struct i2c_client *client,
@@ -356,9 +357,16 @@ static int i2c_hid_hwreset(struct i2c_client *client)
 
 	i2c_hid_dbg(ihid, "%s\n", __func__);
 
+	/*
+	 * This prevents sending feature reports while the device is
+	 * being reset. Otherwise we may lose the reset complete
+	 * interrupt.
+	 */
+	mutex_lock(&ihid->reset_lock);
+
 	ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
 	if (ret)
-		return ret;
+		goto out_unlock;
 
 	i2c_hid_dbg(ihid, "resetting...\n");
 
@@ -366,10 +374,11 @@ static int i2c_hid_hwreset(struct i2c_client *client)
 	if (ret) {
 		dev_err(&client->dev, "failed to reset device.\n");
 		i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
-		return ret;
 	}
 
-	return 0;
+out_unlock:
+	mutex_unlock(&ihid->reset_lock);
+	return ret;
 }
 
 static void i2c_hid_get_input(struct i2c_hid *ihid)
@@ -587,12 +596,15 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
 		size_t count, unsigned char report_type, bool use_data)
 {
 	struct i2c_client *client = hid->driver_data;
+	struct i2c_hid *ihid = i2c_get_clientdata(client);
 	int report_id = buf[0];
 	int ret;
 
 	if (report_type == HID_INPUT_REPORT)
 		return -EINVAL;
 
+	mutex_lock(&ihid->reset_lock);
+
 	if (report_id) {
 		buf++;
 		count--;
@@ -605,6 +617,8 @@ static int i2c_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
 	if (report_id && ret >= 0)
 		ret++; /* add report_id to the number of transfered bytes */
 
+	mutex_unlock(&ihid->reset_lock);
+
 	return ret;
 }
 
@@ -990,6 +1004,7 @@ static int i2c_hid_probe(struct i2c_client *client,
 	ihid->wHIDDescRegister = cpu_to_le16(hidRegister);
 
 	init_waitqueue_head(&ihid->wait);
+	mutex_init(&ihid->reset_lock);
 
 	/* we need to allocate the command buffer without knowing the maximum
 	 * size of the reports. Let's use HID_MIN_BUFFER_SIZE, then we do the
@@ -1184,7 +1199,6 @@ MODULE_DEVICE_TABLE(i2c, i2c_hid_id_table);
 static struct i2c_driver i2c_hid_driver = {
 	.driver = {
 		.name	= "i2c_hid",
-		.owner	= THIS_MODULE,
 		.pm	= &i2c_hid_pm,
 		.acpi_match_table = ACPI_PTR(i2c_hid_acpi_match),
 		.of_match_table = of_match_ptr(i2c_hid_of_match),
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 36712e9f56c2..ad71160b9ea4 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -274,10 +274,10 @@ static void hid_irq_in(struct urb *urb)
 
 	switch (urb->status) {
 	case 0:			/* success */
-		usbhid_mark_busy(usbhid);
 		usbhid->retry_delay = 0;
 		if ((hid->quirks & HID_QUIRK_ALWAYS_POLL) && !hid->open)
 			break;
+		usbhid_mark_busy(usbhid);
 		if (!test_bit(HID_RESUME_RUNNING, &usbhid->iofl)) {
 			hid_input_report(urb->context, HID_INPUT_REPORT,
 					 urb->transfer_buffer,
@@ -477,8 +477,6 @@ static void hid_ctrl(struct urb *urb)
 	struct usbhid_device *usbhid = hid->driver_data;
 	int unplug = 0, status = urb->status;
 
-	spin_lock(&usbhid->lock);
-
 	switch (status) {
 	case 0:			/* success */
 		if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_IN)
@@ -498,6 +496,8 @@ static void hid_ctrl(struct urb *urb)
 		hid_warn(urb->dev, "ctrl urb status %d received\n", status);
 	}
 
+	spin_lock(&usbhid->lock);
+
 	if (unplug) {
 		usbhid->ctrltail = usbhid->ctrlhead;
 	} else {
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 807922b49aa4..fa47d666cfcf 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -96,7 +96,7 @@ struct usbhid_device {
 };
 
 #define	hid_to_usb_dev(hid_dev) \
-	container_of(hid_dev->dev.parent->parent, struct usb_device, dev)
+	to_usb_device(hid_dev->dev.parent->parent)
 
 #endif
 
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index e06af5b9f59e..5cb21dd91094 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -686,7 +686,7 @@ out:
 static ssize_t wacom_led_select_store(struct device *dev, int set_id,
 				      const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	unsigned int id;
 	int err;
@@ -714,7 +714,7 @@ static ssize_t wacom_led##SET_ID##_select_store(struct device *dev,	\
 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev,	\
 	struct device_attribute *attr, char *buf)			\
 {									\
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
+	struct hid_device *hdev = to_hid_device(dev);\
 	struct wacom *wacom = hid_get_drvdata(hdev);			\
 	return scnprintf(buf, PAGE_SIZE, "%d\n",			\
 			 wacom->led.select[SET_ID]);			\
@@ -750,7 +750,7 @@ static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
 static ssize_t wacom_##name##_luminance_store(struct device *dev,	\
 	struct device_attribute *attr, const char *buf, size_t count)	\
 {									\
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
+	struct hid_device *hdev = to_hid_device(dev);\
 	struct wacom *wacom = hid_get_drvdata(hdev);			\
 									\
 	return wacom_luminance_store(wacom, &wacom->led.field,		\
@@ -773,7 +773,7 @@ DEVICE_LUMINANCE_ATTR(buttons, img_lum);
 static ssize_t wacom_button_image_store(struct device *dev, int button_id,
 					const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	int err;
 	unsigned len;
@@ -1097,7 +1097,7 @@ static ssize_t wacom_show_speed(struct device *dev,
 				struct device_attribute
 				*attr, char *buf)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 
 	return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed);
@@ -1107,7 +1107,7 @@ static ssize_t wacom_store_speed(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t count)
 {
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	u8 new_speed;
 
@@ -1130,8 +1130,8 @@ static ssize_t wacom_show_remote_mode(struct kobject *kobj,
 				      struct kobj_attribute *kattr,
 				      char *buf, int index)
 {
-	struct device *dev = container_of(kobj->parent, struct device, kobj);
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct device *dev = kobj_to_dev(kobj->parent);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	u8 mode;
 
@@ -1241,8 +1241,8 @@ static ssize_t wacom_store_unpair_remote(struct kobject *kobj,
 					 const char *buf, size_t count)
 {
 	unsigned char selector = 0;
-	struct device *dev = container_of(kobj->parent, struct device, kobj);
-	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct device *dev = kobj_to_dev(kobj->parent);
+	struct hid_device *hdev = to_hid_device(dev);
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	int err;
 
@@ -1353,8 +1353,7 @@ static void wacom_clean_inputs(struct wacom *wacom)
 		else
 			input_free_device(wacom->wacom_wac.pad_input);
 	}
-	if (wacom->remote_dir)
-		kobject_put(wacom->remote_dir);
+	kobject_put(wacom->remote_dir);
 	wacom->wacom_wac.pen_input = NULL;
 	wacom->wacom_wac.touch_input = NULL;
 	wacom->wacom_wac.pad_input = NULL;
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 01a4f05c1642..99ef77fcfb80 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -34,6 +34,9 @@
  */
 #define WACOM_CONTACT_AREA_SCALE 2607
 
+static void wacom_report_numbered_buttons(struct input_dev *input_dev,
+				int button_count, int mask);
+
 /*
  * Percent of battery capacity for Graphire.
  * 8th value means AC online and show 100% capacity.
@@ -436,16 +439,142 @@ exit:
 static void wacom_intuos_schedule_prox_event(struct wacom_wac *wacom_wac)
 {
 	struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
+	struct wacom_features *features = &wacom_wac->features;
 	struct hid_report *r;
 	struct hid_report_enum *re;
 
 	re = &(wacom->hdev->report_enum[HID_FEATURE_REPORT]);
-	r = re->report_id_hash[WACOM_REPORT_INTUOSREAD];
+	if (features->type == INTUOSHT2)
+		r = re->report_id_hash[WACOM_REPORT_INTUOSHT2_ID];
+	else
+		r = re->report_id_hash[WACOM_REPORT_INTUOS_ID1];
 	if (r) {
 		hid_hw_request(wacom->hdev, r, HID_REQ_GET_REPORT);
 	}
 }
 
+static int wacom_intuos_pad(struct wacom_wac *wacom)
+{
+	struct wacom_features *features = &wacom->features;
+	unsigned char *data = wacom->data;
+	struct input_dev *input = wacom->pad_input;
+	int i;
+	int buttons = 0, nbuttons = features->numbered_buttons;
+	int keys = 0, nkeys = 0;
+	int ring1 = 0, ring2 = 0;
+	int strip1 = 0, strip2 = 0;
+	bool prox = false;
+
+	/* pad packets. Works as a second tool and is always in prox */
+	if (!(data[0] == WACOM_REPORT_INTUOSPAD || data[0] == WACOM_REPORT_INTUOS5PAD ||
+	      data[0] == WACOM_REPORT_CINTIQPAD))
+		return 0;
+
+	if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
+		buttons = (data[3] << 1) | (data[2] & 0x01);
+		ring1 = data[1];
+	} else if (features->type == DTK) {
+		buttons = data[6];
+	} else if (features->type == WACOM_13HD) {
+		buttons = (data[4] << 1) | (data[3] & 0x01);
+	} else if (features->type == WACOM_24HD) {
+		buttons = (data[8] << 8) | data[6];
+		ring1 = data[1];
+		ring2 = data[2];
+
+		/*
+		 * Three "buttons" are available on the 24HD which are
+		 * physically implemented as a touchstrip. Each button
+		 * is approximately 3 bits wide with a 2 bit spacing.
+		 * The raw touchstrip bits are stored at:
+		 *    ((data[3] & 0x1f) << 8) | data[4])
+		 */
+		nkeys = 3;
+		keys = ((data[3] & 0x1C) ? 1<<2 : 0) |
+		       ((data[4] & 0xE0) ? 1<<1 : 0) |
+		       ((data[4] & 0x07) ? 1<<0 : 0);
+	} else if (features->type == WACOM_27QHD) {
+		nkeys = 3;
+		keys = data[2] & 0x07;
+
+		input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[4]));
+		input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[6]));
+		input_report_abs(input, ABS_Z, be16_to_cpup((__be16 *)&data[8]));
+	} else if (features->type == CINTIQ_HYBRID) {
+		/*
+		 * Do not send hardware buttons under Android. They
+		 * are already sent to the system through GPIO (and
+		 * have different meaning).
+		 *
+		 * d-pad right  -> data[4] & 0x10
+		 * d-pad up     -> data[4] & 0x20
+		 * d-pad left   -> data[4] & 0x40
+		 * d-pad down   -> data[4] & 0x80
+		 * d-pad center -> data[3] & 0x01
+		 */
+		buttons = (data[4] << 1) | (data[3] & 0x01);
+	} else if (features->type == CINTIQ_COMPANION_2) {
+		/* d-pad right  -> data[4] & 0x10
+		 * d-pad up     -> data[4] & 0x20
+		 * d-pad left   -> data[4] & 0x40
+		 * d-pad down   -> data[4] & 0x80
+		 * d-pad center -> data[3] & 0x01
+		 */
+		buttons = ((data[2] >> 4) << 7) |
+		          ((data[1] & 0x04) << 6) |
+		          ((data[2] & 0x0F) << 2) |
+		          (data[1] & 0x03);
+	} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
+		/*
+		 * ExpressKeys on Intuos5/Intuos Pro have a capacitive sensor in
+		 * addition to the mechanical switch. Switch data is
+		 * stored in data[4], capacitive data in data[5].
+		 *
+		 * Touch ring mode switch (data[3]) has no capacitive sensor
+		 */
+		buttons = (data[4] << 1) | (data[3] & 0x01);
+		ring1 = data[2];
+	} else {
+		if (features->type == WACOM_21UX2 || features->type == WACOM_22HD) {
+			buttons = (data[8] << 10) | ((data[7] & 0x01) << 9) |
+			          (data[6] << 1) | (data[5] & 0x01);
+
+			if (features->type == WACOM_22HD) {
+				nkeys = 3;
+				keys = data[9] & 0x07;
+			}
+		} else {
+			buttons = ((data[6] & 0x10) << 10) |
+			          ((data[5] & 0x10) << 9)  |
+			          ((data[6] & 0x0F) << 4)  |
+			          (data[5] & 0x0F);
+		}
+		strip1 = ((data[1] & 0x1f) << 8) | data[2];
+		strip2 = ((data[3] & 0x1f) << 8) | data[4];
+	}
+
+	prox = (buttons & ~(~0 << nbuttons)) | (keys & ~(~0 << nkeys)) |
+	       (ring1 & 0x80) | (ring2 & 0x80) | strip1 | strip2;
+
+	wacom_report_numbered_buttons(input, nbuttons, buttons);
+
+	for (i = 0; i < nkeys; i++)
+		input_report_key(input, KEY_PROG1 + i, keys & (1 << i));
+
+	input_report_abs(input, ABS_RX, strip1);
+	input_report_abs(input, ABS_RY, strip2);
+
+	input_report_abs(input, ABS_WHEEL,    (ring1 & 0x80) ? (ring1 & 0x7f) : 0);
+	input_report_abs(input, ABS_THROTTLE, (ring2 & 0x80) ? (ring2 & 0x7f) : 0);
+
+	input_report_key(input, wacom->tool[1], prox ? 1 : 0);
+	input_report_abs(input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
+
+	input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
+
+	return 1;
+}
+
 static int wacom_intuos_inout(struct wacom_wac *wacom)
 {
 	struct wacom_features *features = &wacom->features;
@@ -755,19 +884,40 @@ static int wacom_remote_status_irq(struct wacom_wac *wacom_wac, size_t len)
 	return 0;
 }
 
-static void wacom_intuos_general(struct wacom_wac *wacom)
+static int wacom_intuos_general(struct wacom_wac *wacom)
 {
 	struct wacom_features *features = &wacom->features;
 	unsigned char *data = wacom->data;
 	struct input_dev *input = wacom->pen_input;
-	unsigned int t;
+	int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
+	unsigned char type = (data[1] >> 1) & 0x0F;
+	unsigned int x, y, distance, t;
 
-	/* general pen packet */
-	if ((data[1] & 0xb8) == 0xa0) {
-		t = (data[6] << 2) | ((data[7] >> 6) & 3);
-		if (features->pressure_max == 2047) {
-			t = (t << 1) | (data[1] & 1);
-		}
+	if (data[0] != WACOM_REPORT_PENABLED && data[0] != WACOM_REPORT_CINTIQ &&
+		data[0] != WACOM_REPORT_INTUOS_PEN)
+		return 0;
+
+	x = (be16_to_cpup((__be16 *)&data[2]) << 1) | ((data[9] >> 1) & 1);
+	y = (be16_to_cpup((__be16 *)&data[4]) << 1) | (data[9] & 1);
+	distance = data[9] >> 2;
+	if (features->type < INTUOS3S) {
+		x >>= 1;
+		y >>= 1;
+		distance >>= 1;
+	}
+	input_report_abs(input, ABS_X, x);
+	input_report_abs(input, ABS_Y, y);
+	input_report_abs(input, ABS_DISTANCE, distance);
+
+	switch (type) {
+	case 0x00:
+	case 0x01:
+	case 0x02:
+	case 0x03:
+		/* general pen packet */
+		t = (data[6] << 3) | ((data[7] & 0xC0) >> 5) | (data[1] & 1);
+		if (features->pressure_max < 2047)
+			t >>= 1;
 		input_report_abs(input, ABS_PRESSURE, t);
 		if (features->type != INTUOSHT2) {
 		    input_report_abs(input, ABS_TILT_X,
@@ -777,29 +927,112 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
 		input_report_key(input, BTN_STYLUS, data[1] & 2);
 		input_report_key(input, BTN_STYLUS2, data[1] & 4);
 		input_report_key(input, BTN_TOUCH, t > 10);
-	}
+		break;
 
-	/* airbrush second packet */
-	if ((data[1] & 0xbc) == 0xb4) {
+	case 0x0a:
+		/* airbrush second packet */
 		input_report_abs(input, ABS_WHEEL,
 				(data[6] << 2) | ((data[7] >> 6) & 3));
 		input_report_abs(input, ABS_TILT_X,
 				 (((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
 		input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
+		break;
+
+	case 0x05:
+		/* Rotation packet */
+		if (features->type >= INTUOS3S) {
+			/* I3 marker pen rotation */
+			t = (data[6] << 3) | ((data[7] >> 5) & 7);
+			t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
+				((t-1) / 2 + 450)) : (450 - t / 2) ;
+			input_report_abs(input, ABS_Z, t);
+		} else {
+			/* 4D mouse 2nd packet */
+			t = (data[6] << 3) | ((data[7] >> 5) & 7);
+			input_report_abs(input, ABS_RZ, (data[7] & 0x20) ?
+				((t - 1) / 2) : -t / 2);
+		}
+		break;
+
+	case 0x04:
+		/* 4D mouse 1st packet */
+		input_report_key(input, BTN_LEFT,   data[8] & 0x01);
+		input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
+		input_report_key(input, BTN_RIGHT,  data[8] & 0x04);
+
+		input_report_key(input, BTN_SIDE,   data[8] & 0x20);
+		input_report_key(input, BTN_EXTRA,  data[8] & 0x10);
+		t = (data[6] << 2) | ((data[7] >> 6) & 3);
+		input_report_abs(input, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
+		break;
+
+	case 0x06:
+		/* I4 mouse */
+		input_report_key(input, BTN_LEFT,   data[6] & 0x01);
+		input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
+		input_report_key(input, BTN_RIGHT,  data[6] & 0x04);
+		input_report_rel(input, REL_WHEEL, ((data[7] & 0x80) >> 7)
+				 - ((data[7] & 0x40) >> 6));
+		input_report_key(input, BTN_SIDE,   data[6] & 0x08);
+		input_report_key(input, BTN_EXTRA,  data[6] & 0x10);
+
+		input_report_abs(input, ABS_TILT_X,
+			(((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
+		input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
+		break;
+
+	case 0x08:
+		if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
+			/* 2D mouse packet */
+			input_report_key(input, BTN_LEFT,   data[8] & 0x04);
+			input_report_key(input, BTN_MIDDLE, data[8] & 0x08);
+			input_report_key(input, BTN_RIGHT,  data[8] & 0x10);
+			input_report_rel(input, REL_WHEEL, (data[8] & 0x01)
+					 - ((data[8] & 0x02) >> 1));
+
+			/* I3 2D mouse side buttons */
+			if (features->type >= INTUOS3S && features->type <= INTUOS3L) {
+				input_report_key(input, BTN_SIDE,   data[8] & 0x40);
+				input_report_key(input, BTN_EXTRA,  data[8] & 0x20);
+			}
+		}
+		else if (wacom->tool[idx] == BTN_TOOL_LENS) {
+			/* Lens cursor packets */
+			input_report_key(input, BTN_LEFT,   data[8] & 0x01);
+			input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
+			input_report_key(input, BTN_RIGHT,  data[8] & 0x04);
+			input_report_key(input, BTN_SIDE,   data[8] & 0x10);
+			input_report_key(input, BTN_EXTRA,  data[8] & 0x08);
+		}
+		break;
+
+	case 0x07:
+	case 0x09:
+	case 0x0b:
+	case 0x0c:
+	case 0x0d:
+	case 0x0e:
+	case 0x0f:
+		/* unhandled */
+		break;
 	}
+
+	input_report_abs(input, ABS_MISC, wacom->id[idx]); /* report tool id */
+	input_report_key(input, wacom->tool[idx], 1);
+	input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+	wacom->reporting_data = true;
+	return 2;
 }
 
 static int wacom_intuos_irq(struct wacom_wac *wacom)
 {
-	struct wacom_features *features = &wacom->features;
 	unsigned char *data = wacom->data;
 	struct input_dev *input = wacom->pen_input;
-	unsigned int t;
-	int idx = 0, result;
+	int result;
 
 	if (data[0] != WACOM_REPORT_PENABLED &&
-	    data[0] != WACOM_REPORT_INTUOSREAD &&
-	    data[0] != WACOM_REPORT_INTUOSWRITE &&
+	    data[0] != WACOM_REPORT_INTUOS_ID1 &&
+	    data[0] != WACOM_REPORT_INTUOS_ID2 &&
 	    data[0] != WACOM_REPORT_INTUOSPAD &&
 	    data[0] != WACOM_REPORT_INTUOS_PEN &&
 	    data[0] != WACOM_REPORT_CINTIQ &&
@@ -810,339 +1043,22 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                 return 0;
 	}
 
-	/* tool number */
-	if (features->type == INTUOS)
-		idx = data[1] & 0x01;
-
-	/* pad packets. Works as a second tool and is always in prox */
-	if (data[0] == WACOM_REPORT_INTUOSPAD || data[0] == WACOM_REPORT_INTUOS5PAD ||
-	    data[0] == WACOM_REPORT_CINTIQPAD) {
-		input = wacom->pad_input;
-		if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
-			input_report_key(input, BTN_0, (data[2] & 0x01));
-			input_report_key(input, BTN_1, (data[3] & 0x01));
-			input_report_key(input, BTN_2, (data[3] & 0x02));
-			input_report_key(input, BTN_3, (data[3] & 0x04));
-			input_report_key(input, BTN_4, (data[3] & 0x08));
-			input_report_key(input, BTN_5, (data[3] & 0x10));
-			input_report_key(input, BTN_6, (data[3] & 0x20));
-			if (data[1] & 0x80) {
-				input_report_abs(input, ABS_WHEEL, (data[1] & 0x7f));
-			} else {
-				/* Out of proximity, clear wheel value. */
-				input_report_abs(input, ABS_WHEEL, 0);
-			}
-			if (features->type != INTUOS4S) {
-				input_report_key(input, BTN_7, (data[3] & 0x40));
-				input_report_key(input, BTN_8, (data[3] & 0x80));
-			}
-			if (data[1] | (data[2] & 0x01) | data[3]) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else if (features->type == DTK) {
-			input_report_key(input, BTN_0, (data[6] & 0x01));
-			input_report_key(input, BTN_1, (data[6] & 0x02));
-			input_report_key(input, BTN_2, (data[6] & 0x04));
-			input_report_key(input, BTN_3, (data[6] & 0x08));
-			input_report_key(input, BTN_4, (data[6] & 0x10));
-			input_report_key(input, BTN_5, (data[6] & 0x20));
-			if (data[6] & 0x3f) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else if (features->type == WACOM_13HD) {
-			input_report_key(input, BTN_0, (data[3] & 0x01));
-			input_report_key(input, BTN_1, (data[4] & 0x01));
-			input_report_key(input, BTN_2, (data[4] & 0x02));
-			input_report_key(input, BTN_3, (data[4] & 0x04));
-			input_report_key(input, BTN_4, (data[4] & 0x08));
-			input_report_key(input, BTN_5, (data[4] & 0x10));
-			input_report_key(input, BTN_6, (data[4] & 0x20));
-			input_report_key(input, BTN_7, (data[4] & 0x40));
-			input_report_key(input, BTN_8, (data[4] & 0x80));
-			if ((data[3] & 0x01) | data[4]) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else if (features->type == WACOM_24HD) {
-			input_report_key(input, BTN_0, (data[6] & 0x01));
-			input_report_key(input, BTN_1, (data[6] & 0x02));
-			input_report_key(input, BTN_2, (data[6] & 0x04));
-			input_report_key(input, BTN_3, (data[6] & 0x08));
-			input_report_key(input, BTN_4, (data[6] & 0x10));
-			input_report_key(input, BTN_5, (data[6] & 0x20));
-			input_report_key(input, BTN_6, (data[6] & 0x40));
-			input_report_key(input, BTN_7, (data[6] & 0x80));
-			input_report_key(input, BTN_8, (data[8] & 0x01));
-			input_report_key(input, BTN_9, (data[8] & 0x02));
-			input_report_key(input, BTN_A, (data[8] & 0x04));
-			input_report_key(input, BTN_B, (data[8] & 0x08));
-			input_report_key(input, BTN_C, (data[8] & 0x10));
-			input_report_key(input, BTN_X, (data[8] & 0x20));
-			input_report_key(input, BTN_Y, (data[8] & 0x40));
-			input_report_key(input, BTN_Z, (data[8] & 0x80));
-
-			/*
-			 * Three "buttons" are available on the 24HD which are
-			 * physically implemented as a touchstrip. Each button
-			 * is approximately 3 bits wide with a 2 bit spacing.
-			 * The raw touchstrip bits are stored at:
-			 *    ((data[3] & 0x1f) << 8) | data[4])
-			 */
-			input_report_key(input, KEY_PROG1, data[4] & 0x07);
-			input_report_key(input, KEY_PROG2, data[4] & 0xE0);
-			input_report_key(input, KEY_PROG3, data[3] & 0x1C);
-
-			if (data[1] & 0x80) {
-				input_report_abs(input, ABS_WHEEL, (data[1] & 0x7f));
-			} else {
-				/* Out of proximity, clear wheel value. */
-				input_report_abs(input, ABS_WHEEL, 0);
-			}
-
-			if (data[2] & 0x80) {
-				input_report_abs(input, ABS_THROTTLE, (data[2] & 0x7f));
-			} else {
-				/* Out of proximity, clear second wheel value. */
-				input_report_abs(input, ABS_THROTTLE, 0);
-			}
-
-			if (data[1] | data[2] | (data[3] & 0x1f) | data[4] | data[6] | data[8]) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else if (features->type == WACOM_27QHD) {
-			input_report_key(input, KEY_PROG1, data[2] & 0x01);
-			input_report_key(input, KEY_PROG2, data[2] & 0x02);
-			input_report_key(input, KEY_PROG3, data[2] & 0x04);
-
-			input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[4]));
-			input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[6]));
-			input_report_abs(input, ABS_Z, be16_to_cpup((__be16 *)&data[8]));
-			if ((data[2] & 0x07) | data[4] | data[5] | data[6] | data[7] | data[8] | data[9]) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else if (features->type == CINTIQ_HYBRID) {
-			/*
-			 * Do not send hardware buttons under Android. They
-			 * are already sent to the system through GPIO (and
-			 * have different meaning).
-			 */
-			input_report_key(input, BTN_1, (data[4] & 0x01));
-			input_report_key(input, BTN_2, (data[4] & 0x02));
-			input_report_key(input, BTN_3, (data[4] & 0x04));
-			input_report_key(input, BTN_4, (data[4] & 0x08));
-
-			input_report_key(input, BTN_5, (data[4] & 0x10));  /* Right  */
-			input_report_key(input, BTN_6, (data[4] & 0x20));  /* Up     */
-			input_report_key(input, BTN_7, (data[4] & 0x40));  /* Left   */
-			input_report_key(input, BTN_8, (data[4] & 0x80));  /* Down   */
-			input_report_key(input, BTN_0, (data[3] & 0x01));  /* Center */
-
-			if (data[4] | (data[3] & 0x01)) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-
-		} else if (features->type == CINTIQ_COMPANION_2) {
-			input_report_key(input, BTN_1, (data[1] & 0x02));
-			input_report_key(input, BTN_2, (data[2] & 0x01));
-			input_report_key(input, BTN_3, (data[2] & 0x02));
-			input_report_key(input, BTN_4, (data[2] & 0x04));
-			input_report_key(input, BTN_5, (data[2] & 0x08));
-			input_report_key(input, BTN_6, (data[1] & 0x04));
-
-			input_report_key(input, BTN_7, (data[2] & 0x10));  /* Right  */
-			input_report_key(input, BTN_8, (data[2] & 0x20));  /* Up	 */
-			input_report_key(input, BTN_9, (data[2] & 0x40));  /* Left   */
-			input_report_key(input, BTN_A, (data[2] & 0x80));  /* Down   */
-			input_report_key(input, BTN_0, (data[1] & 0x01));  /* Center */
-
-			if (data[2] | (data[1] & 0x07)) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-
-		} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
-			int i;
-
-			/* Touch ring mode switch has no capacitive sensor */
-			input_report_key(input, BTN_0, (data[3] & 0x01));
-
-			/*
-			 * ExpressKeys on Intuos5/Intuos Pro have a capacitive sensor in
-			 * addition to the mechanical switch. Switch data is
-			 * stored in data[4], capacitive data in data[5].
-			 */
-			for (i = 0; i < 8; i++)
-				input_report_key(input, BTN_1 + i, data[4] & (1 << i));
-
-			if (data[2] & 0x80) {
-				input_report_abs(input, ABS_WHEEL, (data[2] & 0x7f));
-			} else {
-				/* Out of proximity, clear wheel value. */
-				input_report_abs(input, ABS_WHEEL, 0);
-			}
-
-			if (data[2] | (data[3] & 0x01) | data[4] | data[5]) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		} else {
-			if (features->type == WACOM_21UX2 || features->type == WACOM_22HD) {
-				input_report_key(input, BTN_0, (data[5] & 0x01));
-				input_report_key(input, BTN_1, (data[6] & 0x01));
-				input_report_key(input, BTN_2, (data[6] & 0x02));
-				input_report_key(input, BTN_3, (data[6] & 0x04));
-				input_report_key(input, BTN_4, (data[6] & 0x08));
-				input_report_key(input, BTN_5, (data[6] & 0x10));
-				input_report_key(input, BTN_6, (data[6] & 0x20));
-				input_report_key(input, BTN_7, (data[6] & 0x40));
-				input_report_key(input, BTN_8, (data[6] & 0x80));
-				input_report_key(input, BTN_9, (data[7] & 0x01));
-				input_report_key(input, BTN_A, (data[8] & 0x01));
-				input_report_key(input, BTN_B, (data[8] & 0x02));
-				input_report_key(input, BTN_C, (data[8] & 0x04));
-				input_report_key(input, BTN_X, (data[8] & 0x08));
-				input_report_key(input, BTN_Y, (data[8] & 0x10));
-				input_report_key(input, BTN_Z, (data[8] & 0x20));
-				input_report_key(input, BTN_BASE, (data[8] & 0x40));
-				input_report_key(input, BTN_BASE2, (data[8] & 0x80));
-
-				if (features->type == WACOM_22HD) {
-					input_report_key(input, KEY_PROG1, data[9] & 0x01);
-					input_report_key(input, KEY_PROG2, data[9] & 0x02);
-					input_report_key(input, KEY_PROG3, data[9] & 0x04);
-				}
-			} else {
-				input_report_key(input, BTN_0, (data[5] & 0x01));
-				input_report_key(input, BTN_1, (data[5] & 0x02));
-				input_report_key(input, BTN_2, (data[5] & 0x04));
-				input_report_key(input, BTN_3, (data[5] & 0x08));
-				input_report_key(input, BTN_4, (data[6] & 0x01));
-				input_report_key(input, BTN_5, (data[6] & 0x02));
-				input_report_key(input, BTN_6, (data[6] & 0x04));
-				input_report_key(input, BTN_7, (data[6] & 0x08));
-				input_report_key(input, BTN_8, (data[5] & 0x10));
-				input_report_key(input, BTN_9, (data[6] & 0x10));
-			}
-			input_report_abs(input, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
-			input_report_abs(input, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
-
-			if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) |
-				data[2] | (data[3] & 0x1f) | data[4] | data[8] |
-				(data[7] & 0x01)) {
-				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
-			} else {
-				input_report_abs(input, ABS_MISC, 0);
-			}
-		}
-                return 1;
-	}
+	/* process pad events */
+	result = wacom_intuos_pad(wacom);
+	if (result)
+		return result;
 
 	/* process in/out prox events */
 	result = wacom_intuos_inout(wacom);
 	if (result)
-                return result - 1;
-
-	if (features->type >= INTUOS3S) {
-		input_report_abs(input, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));
-		input_report_abs(input, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1));
-		input_report_abs(input, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
-	} else {
-		input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[2]));
-		input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[4]));
-		input_report_abs(input, ABS_DISTANCE, ((data[9] >> 3) & 0x1f));
-	}
+		return result - 1;
 
 	/* process general packets */
-	wacom_intuos_general(wacom);
-
-	/* 4D mouse, 2D mouse, marker pen rotation, tilt mouse, or Lens cursor packets */
-	if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0 || (data[1] & 0xbc) == 0xac) {
-
-		if (data[1] & 0x02) {
-			/* Rotation packet */
-			if (features->type >= INTUOS3S) {
-				/* I3 marker pen rotation */
-				t = (data[6] << 3) | ((data[7] >> 5) & 7);
-				t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
-					((t-1) / 2 + 450)) : (450 - t / 2) ;
-				input_report_abs(input, ABS_Z, t);
-			} else {
-				/* 4D mouse rotation packet */
-				t = (data[6] << 3) | ((data[7] >> 5) & 7);
-				input_report_abs(input, ABS_RZ, (data[7] & 0x20) ?
-					((t - 1) / 2) : -t / 2);
-			}
-
-		} else if (!(data[1] & 0x10) && features->type < INTUOS3S) {
-			/* 4D mouse packet */
-			input_report_key(input, BTN_LEFT,   data[8] & 0x01);
-			input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
-			input_report_key(input, BTN_RIGHT,  data[8] & 0x04);
-
-			input_report_key(input, BTN_SIDE,   data[8] & 0x20);
-			input_report_key(input, BTN_EXTRA,  data[8] & 0x10);
-			t = (data[6] << 2) | ((data[7] >> 6) & 3);
-			input_report_abs(input, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
-
-		} else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
-			/* I4 mouse */
-			if (features->type >= INTUOS4S && features->type <= INTUOSPL) {
-				input_report_key(input, BTN_LEFT,   data[6] & 0x01);
-				input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
-				input_report_key(input, BTN_RIGHT,  data[6] & 0x04);
-				input_report_rel(input, REL_WHEEL, ((data[7] & 0x80) >> 7)
-						 - ((data[7] & 0x40) >> 6));
-				input_report_key(input, BTN_SIDE,   data[6] & 0x08);
-				input_report_key(input, BTN_EXTRA,  data[6] & 0x10);
-
-				input_report_abs(input, ABS_TILT_X,
-					(((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
-				input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
-			} else {
-				/* 2D mouse packet */
-				input_report_key(input, BTN_LEFT,   data[8] & 0x04);
-				input_report_key(input, BTN_MIDDLE, data[8] & 0x08);
-				input_report_key(input, BTN_RIGHT,  data[8] & 0x10);
-				input_report_rel(input, REL_WHEEL, (data[8] & 0x01)
-						 - ((data[8] & 0x02) >> 1));
-
-				/* I3 2D mouse side buttons */
-				if (features->type >= INTUOS3S && features->type <= INTUOS3L) {
-					input_report_key(input, BTN_SIDE,   data[8] & 0x40);
-					input_report_key(input, BTN_EXTRA,  data[8] & 0x20);
-				}
-			}
-		} else if ((features->type < INTUOS3S || features->type == INTUOS3L ||
-				features->type == INTUOS4L || features->type == INTUOS5L ||
-				features->type == INTUOSPL) &&
-			   wacom->tool[idx] == BTN_TOOL_LENS) {
-			/* Lens cursor packets */
-			input_report_key(input, BTN_LEFT,   data[8] & 0x01);
-			input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
-			input_report_key(input, BTN_RIGHT,  data[8] & 0x04);
-			input_report_key(input, BTN_SIDE,   data[8] & 0x10);
-			input_report_key(input, BTN_EXTRA,  data[8] & 0x08);
-		}
-	}
+	result = wacom_intuos_general(wacom);
+	if (result)
+		return result - 1;
 
-	input_report_abs(input, ABS_MISC, wacom->id[idx]); /* report tool id */
-	input_report_key(input, wacom->tool[idx], 1);
-	input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
-	wacom->reporting_data = true;
-	return 1;
+	return 0;
 }
 
 static int int_dist(int x1, int y1, int x2, int y2)
@@ -2509,7 +2425,7 @@ void wacom_setup_device_quirks(struct wacom *wacom)
 		features->quirks |= WACOM_QUIRK_BATTERY;
 
 	/* quirk for bamboo touch with 2 low res touches */
-	if (features->type == BAMBOO_PT &&
+	if ((features->type == BAMBOO_PT || features->type == BAMBOO_TOUCH) &&
 	    features->pktlen == WACOM_PKGLEN_BBTOUCH) {
 		features->x_max <<= 5;
 		features->y_max <<= 5;
@@ -2806,6 +2722,19 @@ static void wacom_setup_numbered_buttons(struct input_dev *input_dev,
 		__set_bit(BTN_BASE + (i-16), input_dev->keybit);
 }
 
+static void wacom_report_numbered_buttons(struct input_dev *input_dev,
+				int button_count, int mask)
+{
+	int i;
+
+	for (i = 0; i < button_count && i < 10; i++)
+		input_report_key(input_dev, BTN_0 + i, mask & (1 << i));
+	for (i = 10; i < button_count && i < 16; i++)
+		input_report_key(input_dev, BTN_A + (i-10), mask & (1 << i));
+	for (i = 16; i < button_count && i < 18; i++)
+		input_report_key(input_dev, BTN_BASE + (i-16), mask & (1 << i));
+}
+
 int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 				   struct wacom_wac *wacom_wac)
 {
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 877c24a5df94..25baa7f29599 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -47,8 +47,8 @@
 /* wacom data packet report IDs */
 #define WACOM_REPORT_PENABLED		2
 #define WACOM_REPORT_PENABLED_BT	3
-#define WACOM_REPORT_INTUOSREAD		5
-#define WACOM_REPORT_INTUOSWRITE	6
+#define WACOM_REPORT_INTUOS_ID1		5
+#define WACOM_REPORT_INTUOS_ID2		6
 #define WACOM_REPORT_INTUOSPAD		12
 #define WACOM_REPORT_INTUOS5PAD		3
 #define WACOM_REPORT_DTUSPAD		21
@@ -70,6 +70,7 @@
 #define WACOM_REPORT_DEVICE_LIST	16
 #define WACOM_REPORT_INTUOS_PEN		16
 #define WACOM_REPORT_REMOTE		17
+#define WACOM_REPORT_INTUOSHT2_ID	8
 
 /* device quirks */
 #define WACOM_QUIRK_BBTOUCH_LOWRES	0x0001
diff --git a/drivers/hsi/controllers/omap_ssi.c b/drivers/hsi/controllers/omap_ssi.c
index f6d3100b7a32..27b91f14ba7a 100644
--- a/drivers/hsi/controllers/omap_ssi.c
+++ b/drivers/hsi/controllers/omap_ssi.c
@@ -323,11 +323,10 @@ static int __init ssi_add_controller(struct hsi_controller *ssi,
 		return -ENOMEM;
 	}
 
-	ssi->id = ida_simple_get(&platform_omap_ssi_ida, 0, 0, GFP_KERNEL);
-	if (ssi->id < 0) {
-		err = ssi->id;
+	err = ida_simple_get(&platform_omap_ssi_ida, 0, 0, GFP_KERNEL);
+	if (err < 0)
 		goto out_err;
-	}
+	ssi->id = err;
 
 	ssi->owner = THIS_MODULE;
 	ssi->device.parent = &pd->dev;
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index 02e66032ae73..e80a66e20998 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -1147,13 +1147,13 @@ static int __init ssi_port_probe(struct platform_device *pd)
 		goto error;
 	}
 
-	cawake_gpio = of_get_named_gpio(np, "ti,ssi-cawake-gpio", 0);
-	if (cawake_gpio < 0) {
+	err = of_get_named_gpio(np, "ti,ssi-cawake-gpio", 0);
+	if (err < 0) {
 		dev_err(&pd->dev, "DT data is missing cawake gpio (err=%d)\n",
-			cawake_gpio);
-		err = -ENODEV;
+			err);
 		goto error;
 	}
+	cawake_gpio = err;
 
 	err = devm_gpio_request_one(&port->device, cawake_gpio, GPIOF_DIR_IN,
 		"cawake");
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index c4dcab048cb8..1161d68a1863 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/hyperv.h>
 #include <linux/uio.h>
+#include <linux/interrupt.h>
 
 #include "hyperv_vmbus.h"
 
@@ -496,8 +497,33 @@ static void reset_channel_cb(void *arg)
 static int vmbus_close_internal(struct vmbus_channel *channel)
 {
 	struct vmbus_channel_close_channel *msg;
+	struct tasklet_struct *tasklet;
 	int ret;
 
+	/*
+	 * process_chn_event(), running in the tasklet, can race
+	 * with vmbus_close_internal() in the case of SMP guest, e.g., when
+	 * the former is accessing channel->inbound.ring_buffer, the latter
+	 * could be freeing the ring_buffer pages.
+	 *
+	 * To resolve the race, we can serialize them by disabling the
+	 * tasklet when the latter is running here.
+	 */
+	tasklet = hv_context.event_dpc[channel->target_cpu];
+	tasklet_disable(tasklet);
+
+	/*
+	 * In case a device driver's probe() fails (e.g.,
+	 * util_probe() -> vmbus_open() returns -ENOMEM) and the device is
+	 * rescinded later (e.g., we dynamically disble an Integrated Service
+	 * in Hyper-V Manager), the driver's remove() invokes vmbus_close():
+	 * here we should skip most of the below cleanup work.
+	 */
+	if (channel->state != CHANNEL_OPENED_STATE) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	channel->state = CHANNEL_OPEN_STATE;
 	channel->sc_creation_callback = NULL;
 	/* Stop callback and cancel the timer asap */
@@ -525,7 +551,7 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
 		 * If we failed to post the close msg,
 		 * it is perhaps better to leak memory.
 		 */
-		return ret;
+		goto out;
 	}
 
 	/* Tear down the gpadl for the channel's ring buffer */
@@ -538,7 +564,7 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
 			 * If we failed to teardown gpadl,
 			 * it is perhaps better to leak memory.
 			 */
-			return ret;
+			goto out;
 		}
 	}
 
@@ -549,12 +575,9 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
 	free_pages((unsigned long)channel->ringbuffer_pages,
 		get_order(channel->ringbuffer_pagecount * PAGE_SIZE));
 
-	/*
-	 * If the channel has been rescinded; process device removal.
-	 */
-	if (channel->rescind)
-		hv_process_channel_removal(channel,
-					   channel->offermsg.child_relid);
+out:
+	tasklet_enable(tasklet);
+
 	return ret;
 }
 
@@ -630,10 +653,19 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
 	 *    on the ring. We will not signal if more data is
 	 *    to be placed.
 	 *
+	 * Based on the channel signal state, we will decide
+	 * which signaling policy will be applied.
+	 *
 	 * If we cannot write to the ring-buffer; signal the host
 	 * even if we may not have written anything. This is a rare
 	 * enough condition that it should not matter.
 	 */
+
+	if (channel->signal_policy)
+		signal = true;
+	else
+		kick_q = true;
+
 	if (((ret == 0) && kick_q && signal) || (ret))
 		vmbus_setevent(channel);
 
@@ -733,10 +765,19 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
 	 *    on the ring. We will not signal if more data is
 	 *    to be placed.
 	 *
+	 * Based on the channel signal state, we will decide
+	 * which signaling policy will be applied.
+	 *
 	 * If we cannot write to the ring-buffer; signal the host
 	 * even if we may not have written anything. This is a rare
 	 * enough condition that it should not matter.
 	 */
+
+	if (channel->signal_policy)
+		signal = true;
+	else
+		kick_q = true;
+
 	if (((ret == 0) && kick_q && signal) || (ret))
 		vmbus_setevent(channel);
 
@@ -881,46 +922,29 @@ EXPORT_SYMBOL_GPL(vmbus_sendpacket_multipagebuffer);
  *
  * Mainly used by Hyper-V drivers.
  */
-int vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
-			u32 bufferlen, u32 *buffer_actual_len, u64 *requestid)
+static inline int
+__vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
+		   u32 bufferlen, u32 *buffer_actual_len, u64 *requestid,
+		   bool raw)
 {
-	struct vmpacket_descriptor desc;
-	u32 packetlen;
-	u32 userlen;
 	int ret;
 	bool signal = false;
 
-	*buffer_actual_len = 0;
-	*requestid = 0;
-
-
-	ret = hv_ringbuffer_peek(&channel->inbound, &desc,
-			     sizeof(struct vmpacket_descriptor));
-	if (ret != 0)
-		return 0;
-
-	packetlen = desc.len8 << 3;
-	userlen = packetlen - (desc.offset8 << 3);
-
-	*buffer_actual_len = userlen;
-
-	if (userlen > bufferlen) {
-
-		pr_err("Buffer too small - got %d needs %d\n",
-			   bufferlen, userlen);
-		return -ETOOSMALL;
-	}
-
-	*requestid = desc.trans_id;
-
-	/* Copy over the packet to the user buffer */
-	ret = hv_ringbuffer_read(&channel->inbound, buffer, userlen,
-			     (desc.offset8 << 3), &signal);
+	ret = hv_ringbuffer_read(&channel->inbound, buffer, bufferlen,
+				 buffer_actual_len, requestid, &signal, raw);
 
 	if (signal)
 		vmbus_setevent(channel);
 
-	return 0;
+	return ret;
+}
+
+int vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
+		     u32 bufferlen, u32 *buffer_actual_len,
+		     u64 *requestid)
+{
+	return __vmbus_recvpacket(channel, buffer, bufferlen,
+				  buffer_actual_len, requestid, false);
 }
 EXPORT_SYMBOL(vmbus_recvpacket);
 
@@ -931,37 +955,7 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer,
 			      u32 bufferlen, u32 *buffer_actual_len,
 			      u64 *requestid)
 {
-	struct vmpacket_descriptor desc;
-	u32 packetlen;
-	int ret;
-	bool signal = false;
-
-	*buffer_actual_len = 0;
-	*requestid = 0;
-
-
-	ret = hv_ringbuffer_peek(&channel->inbound, &desc,
-			     sizeof(struct vmpacket_descriptor));
-	if (ret != 0)
-		return 0;
-
-
-	packetlen = desc.len8 << 3;
-
-	*buffer_actual_len = packetlen;
-
-	if (packetlen > bufferlen)
-		return -ENOBUFS;
-
-	*requestid = desc.trans_id;
-
-	/* Copy over the entire packet to the user buffer */
-	ret = hv_ringbuffer_read(&channel->inbound, buffer, packetlen, 0,
-				 &signal);
-
-	if (signal)
-		vmbus_setevent(channel);
-
-	return ret;
+	return __vmbus_recvpacket(channel, buffer, bufferlen,
+				  buffer_actual_len, requestid, true);
 }
 EXPORT_SYMBOL_GPL(vmbus_recvpacket_raw);
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 652afd11a9ef..1c1ad47042c5 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -177,19 +177,24 @@ static void percpu_channel_deq(void *arg)
 }
 
 
-void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
+static void vmbus_release_relid(u32 relid)
 {
 	struct vmbus_channel_relid_released msg;
-	unsigned long flags;
-	struct vmbus_channel *primary_channel;
 
 	memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
 	msg.child_relid = relid;
 	msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
 	vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released));
+}
 
-	if (channel == NULL)
-		return;
+void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
+{
+	unsigned long flags;
+	struct vmbus_channel *primary_channel;
+
+	vmbus_release_relid(relid);
+
+	BUG_ON(!channel->rescind);
 
 	if (channel->target_cpu != get_cpu()) {
 		put_cpu();
@@ -201,9 +206,9 @@ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
 	}
 
 	if (channel->primary_channel == NULL) {
-		spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+		mutex_lock(&vmbus_connection.channel_mutex);
 		list_del(&channel->listentry);
-		spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+		mutex_unlock(&vmbus_connection.channel_mutex);
 
 		primary_channel = channel;
 	} else {
@@ -230,9 +235,7 @@ void vmbus_free_channels(void)
 
 	list_for_each_entry_safe(channel, tmp, &vmbus_connection.chn_list,
 		listentry) {
-		/* if we don't set rescind to true, vmbus_close_internal()
-		 * won't invoke hv_process_channel_removal().
-		 */
+		/* hv_process_channel_removal() needs this */
 		channel->rescind = true;
 
 		vmbus_device_unregister(channel->device_obj);
@@ -250,7 +253,7 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 	unsigned long flags;
 
 	/* Make sure this is a new offer */
-	spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+	mutex_lock(&vmbus_connection.channel_mutex);
 
 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {
 		if (!uuid_le_cmp(channel->offermsg.offer.if_type,
@@ -266,7 +269,7 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 		list_add_tail(&newchannel->listentry,
 			      &vmbus_connection.chn_list);
 
-	spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+	mutex_unlock(&vmbus_connection.channel_mutex);
 
 	if (!fnew) {
 		/*
@@ -336,9 +339,11 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 	return;
 
 err_deq_chan:
-	spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+	vmbus_release_relid(newchannel->offermsg.child_relid);
+
+	mutex_lock(&vmbus_connection.channel_mutex);
 	list_del(&newchannel->listentry);
-	spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+	mutex_unlock(&vmbus_connection.channel_mutex);
 
 	if (newchannel->target_cpu != get_cpu()) {
 		put_cpu();
@@ -356,8 +361,10 @@ err_free_chan:
 enum {
 	IDE = 0,
 	SCSI,
+	FC,
 	NIC,
 	ND_NIC,
+	PCIE,
 	MAX_PERF_CHN,
 };
 
@@ -371,10 +378,14 @@ static const struct hv_vmbus_device_id hp_devs[] = {
 	{ HV_IDE_GUID, },
 	/* Storage - SCSI */
 	{ HV_SCSI_GUID, },
+	/* Storage - FC */
+	{ HV_SYNTHFC_GUID, },
 	/* Network */
 	{ HV_NIC_GUID, },
 	/* NetworkDirect Guest RDMA */
 	{ HV_ND_GUID, },
+	/* PCI Express Pass Through */
+	{ HV_PCIE_GUID, },
 };
 
 
@@ -405,8 +416,7 @@ static void init_vp_index(struct vmbus_channel *channel, const uuid_le *type_gui
 	struct cpumask *alloced_mask;
 
 	for (i = IDE; i < MAX_PERF_CHN; i++) {
-		if (!memcmp(type_guid->b, hp_devs[i].guid,
-				 sizeof(uuid_le))) {
+		if (!uuid_le_cmp(*type_guid, hp_devs[i].guid)) {
 			perf_chn = true;
 			break;
 		}
@@ -585,7 +595,11 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 	channel = relid2channel(rescind->child_relid);
 
 	if (channel == NULL) {
-		hv_process_channel_removal(NULL, rescind->child_relid);
+		/*
+		 * This is very impossible, because in
+		 * vmbus_process_offer(), we have already invoked
+		 * vmbus_release_relid() on error.
+		 */
 		return;
 	}
 
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 4fc2e8836e60..3dc5a9c7fad6 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -83,10 +83,13 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo,
 	msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);
 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);
 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);
-	if (version >= VERSION_WIN8_1) {
-		msg->target_vcpu = hv_context.vp_index[get_cpu()];
-		put_cpu();
-	}
+	/*
+	 * We want all channel messages to be delivered on CPU 0.
+	 * This has been the behavior pre-win8. This is not
+	 * perf issue and having all channel messages delivered on CPU 0
+	 * would be ok.
+	 */
+	msg->target_vcpu = 0;
 
 	/*
 	 * Add to list before we send the request since we may
@@ -146,7 +149,7 @@ int vmbus_connect(void)
 	spin_lock_init(&vmbus_connection.channelmsg_lock);
 
 	INIT_LIST_HEAD(&vmbus_connection.chn_list);
-	spin_lock_init(&vmbus_connection.channel_lock);
+	mutex_init(&vmbus_connection.channel_mutex);
 
 	/*
 	 * Setup the vmbus event connection for channel interrupt
@@ -282,11 +285,10 @@ struct vmbus_channel *relid2channel(u32 relid)
 {
 	struct vmbus_channel *channel;
 	struct vmbus_channel *found_channel  = NULL;
-	unsigned long flags;
 	struct list_head *cur, *tmp;
 	struct vmbus_channel *cur_sc;
 
-	spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
+	mutex_lock(&vmbus_connection.channel_mutex);
 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {
 		if (channel->offermsg.child_relid == relid) {
 			found_channel = channel;
@@ -305,7 +307,7 @@ struct vmbus_channel *relid2channel(u32 relid)
 			}
 		}
 	}
-	spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+	mutex_unlock(&vmbus_connection.channel_mutex);
 
 	return found_channel;
 }
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 6341be8739ae..11bca51ef5ff 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -89,9 +89,9 @@ static int query_hypervisor_info(void)
 }
 
 /*
- * do_hypercall- Invoke the specified hypercall
+ * hv_do_hypercall- Invoke the specified hypercall
  */
-static u64 do_hypercall(u64 control, void *input, void *output)
+u64 hv_do_hypercall(u64 control, void *input, void *output)
 {
 	u64 input_address = (input) ? virt_to_phys(input) : 0;
 	u64 output_address = (output) ? virt_to_phys(output) : 0;
@@ -132,6 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
 	return hv_status_lo | ((u64)hv_status_hi << 32);
 #endif /* !x86_64 */
 }
+EXPORT_SYMBOL_GPL(hv_do_hypercall);
 
 #ifdef CONFIG_X86_64
 static cycle_t read_hv_clock_tsc(struct clocksource *arg)
@@ -139,7 +140,7 @@ static cycle_t read_hv_clock_tsc(struct clocksource *arg)
 	cycle_t current_tick;
 	struct ms_hyperv_tsc_page *tsc_pg = hv_context.tsc_page;
 
-	if (tsc_pg->tsc_sequence != -1) {
+	if (tsc_pg->tsc_sequence != 0) {
 		/*
 		 * Use the tsc page to compute the value.
 		 */
@@ -161,7 +162,7 @@ static cycle_t read_hv_clock_tsc(struct clocksource *arg)
 			if (tsc_pg->tsc_sequence == sequence)
 				return current_tick;
 
-			if (tsc_pg->tsc_sequence != -1)
+			if (tsc_pg->tsc_sequence != 0)
 				continue;
 			/*
 			 * Fallback using MSR method.
@@ -192,9 +193,7 @@ int hv_init(void)
 {
 	int max_leaf;
 	union hv_x64_msr_hypercall_contents hypercall_msr;
-	union hv_x64_msr_hypercall_contents tsc_msr;
 	void *virtaddr = NULL;
-	void *va_tsc = NULL;
 
 	memset(hv_context.synic_event_page, 0, sizeof(void *) * NR_CPUS);
 	memset(hv_context.synic_message_page, 0,
@@ -240,6 +239,9 @@ int hv_init(void)
 
 #ifdef CONFIG_X86_64
 	if (ms_hyperv.features & HV_X64_MSR_REFERENCE_TSC_AVAILABLE) {
+		union hv_x64_msr_hypercall_contents tsc_msr;
+		void *va_tsc;
+
 		va_tsc = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL);
 		if (!va_tsc)
 			goto cleanup;
@@ -315,7 +317,7 @@ int hv_post_message(union hv_connection_id connection_id,
 {
 
 	struct hv_input_post_message *aligned_msg;
-	u16 status;
+	u64 status;
 
 	if (payload_size > HV_MESSAGE_PAYLOAD_BYTE_COUNT)
 		return -EMSGSIZE;
@@ -329,11 +331,10 @@ int hv_post_message(union hv_connection_id connection_id,
 	aligned_msg->payload_size = payload_size;
 	memcpy((void *)aligned_msg->payload, payload, payload_size);
 
-	status = do_hypercall(HVCALL_POST_MESSAGE, aligned_msg, NULL)
-		& 0xFFFF;
+	status = hv_do_hypercall(HVCALL_POST_MESSAGE, aligned_msg, NULL);
 
 	put_cpu();
-	return status;
+	return status & 0xFFFF;
 }
 
 
@@ -343,13 +344,13 @@ int hv_post_message(union hv_connection_id connection_id,
  *
  * This involves a hypercall.
  */
-u16 hv_signal_event(void *con_id)
+int hv_signal_event(void *con_id)
 {
-	u16 status;
+	u64 status;
 
-	status = (do_hypercall(HVCALL_SIGNAL_EVENT, con_id, NULL) & 0xFFFF);
+	status = hv_do_hypercall(HVCALL_SIGNAL_EVENT, con_id, NULL);
 
-	return status;
+	return status & 0xFFFF;
 }
 
 static int hv_ce_set_next_event(unsigned long delta,
diff --git a/drivers/hv/hv_fcopy.c b/drivers/hv/hv_fcopy.c
index db4b887b889d..c37a71e13de0 100644
--- a/drivers/hv/hv_fcopy.c
+++ b/drivers/hv/hv_fcopy.c
@@ -51,7 +51,6 @@ static struct {
 	struct hv_fcopy_hdr  *fcopy_msg; /* current message */
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
-	void *fcopy_context; /* for the channel callback */
 } fcopy_transaction;
 
 static void fcopy_respond_to_host(int error);
@@ -67,6 +66,13 @@ static struct hvutil_transport *hvt;
  */
 static int dm_reg_value;
 
+static void fcopy_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	fcopy_transaction.state = HVUTIL_READY;
+	hv_fcopy_onchannelcallback(channel);
+}
+
 static void fcopy_timeout_func(struct work_struct *dummy)
 {
 	/*
@@ -74,13 +80,7 @@ static void fcopy_timeout_func(struct work_struct *dummy)
 	 * process the pending transaction.
 	 */
 	fcopy_respond_to_host(HV_E_FAIL);
-
-	/* Transaction is finished, reset the state. */
-	if (fcopy_transaction.state > HVUTIL_READY)
-		fcopy_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(fcopy_transaction.fcopy_context,
-			hv_fcopy_onchannelcallback);
+	hv_poll_channel(fcopy_transaction.recv_channel, fcopy_poll_wrapper);
 }
 
 static int fcopy_handle_handshake(u32 version)
@@ -108,9 +108,7 @@ static int fcopy_handle_handshake(u32 version)
 		return -EINVAL;
 	}
 	pr_debug("FCP: userspace daemon ver. %d registered\n", version);
-	fcopy_transaction.state = HVUTIL_READY;
-	hv_poll_channel(fcopy_transaction.fcopy_context,
-			hv_fcopy_onchannelcallback);
+	hv_poll_channel(fcopy_transaction.recv_channel, fcopy_poll_wrapper);
 	return 0;
 }
 
@@ -227,15 +225,8 @@ void hv_fcopy_onchannelcallback(void *context)
 	int util_fw_version;
 	int fcopy_srv_version;
 
-	if (fcopy_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		fcopy_transaction.fcopy_context = context;
+	if (fcopy_transaction.state > HVUTIL_READY)
 		return;
-	}
-	fcopy_transaction.fcopy_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
 			 &requestid);
@@ -275,7 +266,8 @@ void hv_fcopy_onchannelcallback(void *context)
 		 * Send the information to the user-level daemon.
 		 */
 		schedule_work(&fcopy_send_work);
-		schedule_delayed_work(&fcopy_timeout_work, 5*HZ);
+		schedule_delayed_work(&fcopy_timeout_work,
+				      HV_UTIL_TIMEOUT * HZ);
 		return;
 	}
 	icmsghdr->icflags = ICMSGHDRFLAG_TRANSACTION | ICMSGHDRFLAG_RESPONSE;
@@ -304,9 +296,8 @@ static int fcopy_on_msg(void *msg, int len)
 	if (cancel_delayed_work_sync(&fcopy_timeout_work)) {
 		fcopy_transaction.state = HVUTIL_USERSPACE_RECV;
 		fcopy_respond_to_host(*val);
-		fcopy_transaction.state = HVUTIL_READY;
-		hv_poll_channel(fcopy_transaction.fcopy_context,
-				hv_fcopy_onchannelcallback);
+		hv_poll_channel(fcopy_transaction.recv_channel,
+				fcopy_poll_wrapper);
 	}
 
 	return 0;
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 74c38a9f34a6..d4ab81bcd515 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -66,7 +66,6 @@ static struct {
 	struct hv_kvp_msg  *kvp_msg; /* current message */
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
-	void *kvp_context; /* for the channel callback */
 } kvp_transaction;
 
 /*
@@ -94,6 +93,13 @@ static struct hvutil_transport *hvt;
  */
 #define HV_DRV_VERSION           "3.1"
 
+static void kvp_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	kvp_transaction.state = HVUTIL_READY;
+	hv_kvp_onchannelcallback(channel);
+}
+
 static void
 kvp_register(int reg_value)
 {
@@ -121,12 +127,7 @@ static void kvp_timeout_func(struct work_struct *dummy)
 	 */
 	kvp_respond_to_host(NULL, HV_E_FAIL);
 
-	/* Transaction is finished, reset the state. */
-	if (kvp_transaction.state > HVUTIL_READY)
-		kvp_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(kvp_transaction.kvp_context,
-			hv_kvp_onchannelcallback);
+	hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 }
 
 static int kvp_handle_handshake(struct hv_kvp_msg *msg)
@@ -153,7 +154,7 @@ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
 	pr_debug("KVP: userspace daemon ver. %d registered\n",
 		 KVP_OP_REGISTER);
 	kvp_register(dm_reg_value);
-	kvp_transaction.state = HVUTIL_READY;
+	hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 
 	return 0;
 }
@@ -218,9 +219,7 @@ static int kvp_on_msg(void *msg, int len)
 	 */
 	if (cancel_delayed_work_sync(&kvp_timeout_work)) {
 		kvp_respond_to_host(message, error);
-		kvp_transaction.state = HVUTIL_READY;
-		hv_poll_channel(kvp_transaction.kvp_context,
-				hv_kvp_onchannelcallback);
+		hv_poll_channel(kvp_transaction.recv_channel, kvp_poll_wrapper);
 	}
 
 	return 0;
@@ -596,15 +595,8 @@ void hv_kvp_onchannelcallback(void *context)
 	int util_fw_version;
 	int kvp_srv_version;
 
-	if (kvp_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		kvp_transaction.kvp_context = context;
+	if (kvp_transaction.state > HVUTIL_READY)
 		return;
-	}
-	kvp_transaction.kvp_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,
 			 &requestid);
@@ -668,7 +660,8 @@ void hv_kvp_onchannelcallback(void *context)
 			 * user-mode not responding.
 			 */
 			schedule_work(&kvp_sendkey_work);
-			schedule_delayed_work(&kvp_timeout_work, 5*HZ);
+			schedule_delayed_work(&kvp_timeout_work,
+					      HV_UTIL_TIMEOUT * HZ);
 
 			return;
 
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index 815405f2e777..67def4a831c8 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -53,7 +53,6 @@ static struct {
 	struct vmbus_channel *recv_channel; /* chn we got the request */
 	u64 recv_req_id; /* request ID. */
 	struct hv_vss_msg  *msg; /* current message */
-	void *vss_context; /* for the channel callback */
 } vss_transaction;
 
 
@@ -74,6 +73,13 @@ static void vss_timeout_func(struct work_struct *dummy);
 static DECLARE_DELAYED_WORK(vss_timeout_work, vss_timeout_func);
 static DECLARE_WORK(vss_send_op_work, vss_send_op);
 
+static void vss_poll_wrapper(void *channel)
+{
+	/* Transaction is finished, reset the state here to avoid races. */
+	vss_transaction.state = HVUTIL_READY;
+	hv_vss_onchannelcallback(channel);
+}
+
 /*
  * Callback when data is received from user mode.
  */
@@ -86,12 +92,7 @@ static void vss_timeout_func(struct work_struct *dummy)
 	pr_warn("VSS: timeout waiting for daemon to reply\n");
 	vss_respond_to_host(HV_E_FAIL);
 
-	/* Transaction is finished, reset the state. */
-	if (vss_transaction.state > HVUTIL_READY)
-		vss_transaction.state = HVUTIL_READY;
-
-	hv_poll_channel(vss_transaction.vss_context,
-			hv_vss_onchannelcallback);
+	hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper);
 }
 
 static int vss_handle_handshake(struct hv_vss_msg *vss_msg)
@@ -112,7 +113,7 @@ static int vss_handle_handshake(struct hv_vss_msg *vss_msg)
 	default:
 		return -EINVAL;
 	}
-	vss_transaction.state = HVUTIL_READY;
+	hv_poll_channel(vss_transaction.recv_channel, vss_poll_wrapper);
 	pr_debug("VSS: userspace daemon ver. %d registered\n", dm_reg_value);
 	return 0;
 }
@@ -138,9 +139,8 @@ static int vss_on_msg(void *msg, int len)
 		if (cancel_delayed_work_sync(&vss_timeout_work)) {
 			vss_respond_to_host(vss_msg->error);
 			/* Transaction is finished, reset the state. */
-			vss_transaction.state = HVUTIL_READY;
-			hv_poll_channel(vss_transaction.vss_context,
-					hv_vss_onchannelcallback);
+			hv_poll_channel(vss_transaction.recv_channel,
+					vss_poll_wrapper);
 		}
 	} else {
 		/* This is a spurious call! */
@@ -238,15 +238,8 @@ void hv_vss_onchannelcallback(void *context)
 	struct icmsg_hdr *icmsghdrp;
 	struct icmsg_negotiate *negop = NULL;
 
-	if (vss_transaction.state > HVUTIL_READY) {
-		/*
-		 * We will defer processing this callback once
-		 * the current transaction is complete.
-		 */
-		vss_transaction.vss_context = context;
+	if (vss_transaction.state > HVUTIL_READY)
 		return;
-	}
-	vss_transaction.vss_context = NULL;
 
 	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
 			 &requestid);
@@ -338,6 +331,11 @@ static void vss_on_reset(void)
 int
 hv_vss_init(struct hv_util_service *srv)
 {
+	if (vmbus_proto_version < VERSION_WIN8_1) {
+		pr_warn("Integration service 'Backup (volume snapshot)'"
+			" not supported on this host version.\n");
+		return -ENOTSUPP;
+	}
 	recv_buffer = srv->recv_buffer;
 
 	/*
diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c
index 6a9d80a5332d..4f42c0e20c20 100644
--- a/drivers/hv/hv_utils_transport.c
+++ b/drivers/hv/hv_utils_transport.c
@@ -27,11 +27,9 @@ static struct list_head hvt_list = LIST_HEAD_INIT(hvt_list);
 
 static void hvt_reset(struct hvutil_transport *hvt)
 {
-	mutex_lock(&hvt->outmsg_lock);
 	kfree(hvt->outmsg);
 	hvt->outmsg = NULL;
 	hvt->outmsg_len = 0;
-	mutex_unlock(&hvt->outmsg_lock);
 	if (hvt->on_reset)
 		hvt->on_reset();
 }
@@ -44,10 +42,17 @@ static ssize_t hvt_op_read(struct file *file, char __user *buf,
 
 	hvt = container_of(file->f_op, struct hvutil_transport, fops);
 
-	if (wait_event_interruptible(hvt->outmsg_q, hvt->outmsg_len > 0))
+	if (wait_event_interruptible(hvt->outmsg_q, hvt->outmsg_len > 0 ||
+				     hvt->mode != HVUTIL_TRANSPORT_CHARDEV))
 		return -EINTR;
 
-	mutex_lock(&hvt->outmsg_lock);
+	mutex_lock(&hvt->lock);
+
+	if (hvt->mode == HVUTIL_TRANSPORT_DESTROY) {
+		ret = -EBADF;
+		goto out_unlock;
+	}
+
 	if (!hvt->outmsg) {
 		ret = -EAGAIN;
 		goto out_unlock;
@@ -68,7 +73,7 @@ static ssize_t hvt_op_read(struct file *file, char __user *buf,
 	hvt->outmsg_len = 0;
 
 out_unlock:
-	mutex_unlock(&hvt->outmsg_lock);
+	mutex_unlock(&hvt->lock);
 	return ret;
 }
 
@@ -77,19 +82,22 @@ static ssize_t hvt_op_write(struct file *file, const char __user *buf,
 {
 	struct hvutil_transport *hvt;
 	u8 *inmsg;
+	int ret;
 
 	hvt = container_of(file->f_op, struct hvutil_transport, fops);
 
-	inmsg = kzalloc(count, GFP_KERNEL);
-	if (copy_from_user(inmsg, buf, count)) {
-		kfree(inmsg);
-		return -EFAULT;
-	}
-	if (hvt->on_msg(inmsg, count))
-		return -EFAULT;
+	inmsg = memdup_user(buf, count);
+	if (IS_ERR(inmsg))
+		return PTR_ERR(inmsg);
+
+	if (hvt->mode == HVUTIL_TRANSPORT_DESTROY)
+		ret = -EBADF;
+	else
+		ret = hvt->on_msg(inmsg, count);
+
 	kfree(inmsg);
 
-	return count;
+	return ret ? ret : count;
 }
 
 static unsigned int hvt_op_poll(struct file *file, poll_table *wait)
@@ -99,6 +107,10 @@ static unsigned int hvt_op_poll(struct file *file, poll_table *wait)
 	hvt = container_of(file->f_op, struct hvutil_transport, fops);
 
 	poll_wait(file, &hvt->outmsg_q, wait);
+
+	if (hvt->mode == HVUTIL_TRANSPORT_DESTROY)
+		return POLLERR | POLLHUP;
+
 	if (hvt->outmsg_len > 0)
 		return POLLIN | POLLRDNORM;
 
@@ -108,40 +120,68 @@ static unsigned int hvt_op_poll(struct file *file, poll_table *wait)
 static int hvt_op_open(struct inode *inode, struct file *file)
 {
 	struct hvutil_transport *hvt;
+	int ret = 0;
+	bool issue_reset = false;
 
 	hvt = container_of(file->f_op, struct hvutil_transport, fops);
 
-	/*
-	 * Switching to CHARDEV mode. We switch bach to INIT when device
-	 * gets released.
-	 */
-	if (hvt->mode == HVUTIL_TRANSPORT_INIT)
+	mutex_lock(&hvt->lock);
+
+	if (hvt->mode == HVUTIL_TRANSPORT_DESTROY) {
+		ret = -EBADF;
+	} else if (hvt->mode == HVUTIL_TRANSPORT_INIT) {
+		/*
+		 * Switching to CHARDEV mode. We switch bach to INIT when
+		 * device gets released.
+		 */
 		hvt->mode = HVUTIL_TRANSPORT_CHARDEV;
+	}
 	else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) {
 		/*
 		 * We're switching from netlink communication to using char
 		 * device. Issue the reset first.
 		 */
-		hvt_reset(hvt);
+		issue_reset = true;
 		hvt->mode = HVUTIL_TRANSPORT_CHARDEV;
-	} else
-		return -EBUSY;
+	} else {
+		ret = -EBUSY;
+	}
 
-	return 0;
+	if (issue_reset)
+		hvt_reset(hvt);
+
+	mutex_unlock(&hvt->lock);
+
+	return ret;
+}
+
+static void hvt_transport_free(struct hvutil_transport *hvt)
+{
+	misc_deregister(&hvt->mdev);
+	kfree(hvt->outmsg);
+	kfree(hvt);
 }
 
 static int hvt_op_release(struct inode *inode, struct file *file)
 {
 	struct hvutil_transport *hvt;
+	int mode_old;
 
 	hvt = container_of(file->f_op, struct hvutil_transport, fops);
 
-	hvt->mode = HVUTIL_TRANSPORT_INIT;
+	mutex_lock(&hvt->lock);
+	mode_old = hvt->mode;
+	if (hvt->mode != HVUTIL_TRANSPORT_DESTROY)
+		hvt->mode = HVUTIL_TRANSPORT_INIT;
 	/*
 	 * Cleanup message buffers to avoid spurious messages when the daemon
 	 * connects back.
 	 */
 	hvt_reset(hvt);
+	mutex_unlock(&hvt->lock);
+
+	if (mode_old == HVUTIL_TRANSPORT_DESTROY)
+		hvt_transport_free(hvt);
 
 	return 0;
 }
@@ -168,6 +208,7 @@ static void hvt_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
 	 * Switching to NETLINK mode. Switching to CHARDEV happens when someone
 	 * opens the device.
 	 */
+	mutex_lock(&hvt->lock);
 	if (hvt->mode == HVUTIL_TRANSPORT_INIT)
 		hvt->mode = HVUTIL_TRANSPORT_NETLINK;
 
@@ -175,6 +216,7 @@ static void hvt_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
 		hvt_found->on_msg(msg->data, msg->len);
 	else
 		pr_warn("hvt_cn_callback: unexpected netlink message!\n");
+	mutex_unlock(&hvt->lock);
 }
 
 int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len)
@@ -182,7 +224,8 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len)
 	struct cn_msg *cn_msg;
 	int ret = 0;
 
-	if (hvt->mode == HVUTIL_TRANSPORT_INIT) {
+	if (hvt->mode == HVUTIL_TRANSPORT_INIT ||
+	    hvt->mode == HVUTIL_TRANSPORT_DESTROY) {
 		return -EINVAL;
 	} else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) {
 		cn_msg = kzalloc(sizeof(*cn_msg) + len, GFP_ATOMIC);
@@ -197,18 +240,26 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len)
 		return ret;
 	}
 	/* HVUTIL_TRANSPORT_CHARDEV */
-	mutex_lock(&hvt->outmsg_lock);
+	mutex_lock(&hvt->lock);
+	if (hvt->mode != HVUTIL_TRANSPORT_CHARDEV) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
 	if (hvt->outmsg) {
 		/* Previous message wasn't received */
 		ret = -EFAULT;
 		goto out_unlock;
 	}
 	hvt->outmsg = kzalloc(len, GFP_KERNEL);
-	memcpy(hvt->outmsg, msg, len);
-	hvt->outmsg_len = len;
-	wake_up_interruptible(&hvt->outmsg_q);
+	if (hvt->outmsg) {
+		memcpy(hvt->outmsg, msg, len);
+		hvt->outmsg_len = len;
+		wake_up_interruptible(&hvt->outmsg_q);
+	} else
+		ret = -ENOMEM;
 out_unlock:
-	mutex_unlock(&hvt->outmsg_lock);
+	mutex_unlock(&hvt->lock);
 	return ret;
 }
 
@@ -239,7 +290,7 @@ struct hvutil_transport *hvutil_transport_init(const char *name,
 	hvt->mdev.fops = &hvt->fops;
 
 	init_waitqueue_head(&hvt->outmsg_q);
-	mutex_init(&hvt->outmsg_lock);
+	mutex_init(&hvt->lock);
 
 	spin_lock(&hvt_list_lock);
 	list_add(&hvt->list, &hvt_list);
@@ -265,12 +316,25 @@ err_free_hvt:
 
 void hvutil_transport_destroy(struct hvutil_transport *hvt)
 {
+	int mode_old;
+
+	mutex_lock(&hvt->lock);
+	mode_old = hvt->mode;
+	hvt->mode = HVUTIL_TRANSPORT_DESTROY;
+	wake_up_interruptible(&hvt->outmsg_q);
+	mutex_unlock(&hvt->lock);
+
+	/*
+	 * In case we were in 'chardev' mode we still have an open fd so we
+	 * have to defer freeing the device. Netlink interface can be freed
+	 * now.
+	 */
 	spin_lock(&hvt_list_lock);
 	list_del(&hvt->list);
 	spin_unlock(&hvt_list_lock);
 	if (hvt->cn_id.idx > 0 && hvt->cn_id.val > 0)
 		cn_del_callback(&hvt->cn_id);
-	misc_deregister(&hvt->mdev);
-	kfree(hvt->outmsg);
-	kfree(hvt);
+
+	if (mode_old != HVUTIL_TRANSPORT_CHARDEV)
+		hvt_transport_free(hvt);
 }
diff --git a/drivers/hv/hv_utils_transport.h b/drivers/hv/hv_utils_transport.h
index 314c76ce1b07..06254a165a18 100644
--- a/drivers/hv/hv_utils_transport.h
+++ b/drivers/hv/hv_utils_transport.h
@@ -25,6 +25,7 @@ enum hvutil_transport_mode {
 	HVUTIL_TRANSPORT_INIT = 0,
 	HVUTIL_TRANSPORT_NETLINK,
 	HVUTIL_TRANSPORT_CHARDEV,
+	HVUTIL_TRANSPORT_DESTROY,
 };
 
 struct hvutil_transport {
@@ -38,7 +39,7 @@ struct hvutil_transport {
 	u8 *outmsg;                         /* message to the userspace */
 	int outmsg_len;                     /* its length */
 	wait_queue_head_t outmsg_q;         /* poll/read wait queue */
-	struct mutex outmsg_lock;           /* protects outmsg */
+	struct mutex lock;                  /* protects struct members */
 };
 
 struct hvutil_transport *hvutil_transport_init(const char *name,
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 678663e2085f..4ebc796b4f33 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -31,6 +31,11 @@
 #include <linux/hyperv.h>
 
 /*
+ * Timeout for services such as KVP and fcopy.
+ */
+#define HV_UTIL_TIMEOUT 30
+
+/*
  * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
  * is set by CPUID(HVCPUID_VERSION_FEATURES).
  */
@@ -496,7 +501,7 @@ extern int hv_post_message(union hv_connection_id connection_id,
 			 enum hv_message_type message_type,
 			 void *payload, size_t payload_size);
 
-extern u16 hv_signal_event(void *con_id);
+extern int hv_signal_event(void *con_id);
 
 extern int hv_synic_alloc(void);
 
@@ -528,14 +533,9 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
 		    struct kvec *kv_list,
 		    u32 kv_count, bool *signal);
 
-int hv_ringbuffer_peek(struct hv_ring_buffer_info *ring_info, void *buffer,
-		   u32 buflen);
-
-int hv_ringbuffer_read(struct hv_ring_buffer_info *ring_info,
-		   void *buffer,
-		   u32 buflen,
-		   u32 offset, bool *signal);
-
+int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+		       void *buffer, u32 buflen, u32 *buffer_actual_len,
+		       u64 *requestid, bool *signal, bool raw);
 
 void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
 			    struct hv_ring_buffer_debug_info *debug_info);
@@ -592,7 +592,7 @@ struct vmbus_connection {
 
 	/* List of channels */
 	struct list_head chn_list;
-	spinlock_t channel_lock;
+	struct mutex channel_mutex;
 
 	struct workqueue_struct *work_queue;
 };
@@ -673,11 +673,7 @@ static inline void hv_poll_channel(struct vmbus_channel *channel,
 	if (!channel)
 		return;
 
-	if (channel->target_cpu != smp_processor_id())
-		smp_call_function_single(channel->target_cpu,
-					 cb, channel, true);
-	else
-		cb(channel);
+	smp_call_function_single(channel->target_cpu, cb, channel, true);
 }
 
 enum hvutil_device_state {
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 70a1a9a22f87..b53702ce692f 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -112,9 +112,7 @@ static bool hv_need_to_signal_on_read(u32 prev_write_sz,
 	u32 read_loc = rbi->ring_buffer->read_index;
 	u32 pending_sz = rbi->ring_buffer->pending_send_sz;
 
-	/*
-	 * If the other end is not blocked on write don't bother.
-	 */
+	/* If the other end is not blocked on write don't bother. */
 	if (pending_sz == 0)
 		return false;
 
@@ -128,12 +126,7 @@ static bool hv_need_to_signal_on_read(u32 prev_write_sz,
 	return false;
 }
 
-/*
- * hv_get_next_write_location()
- *
- * Get the next write location for the specified ring buffer
- *
- */
+/* Get the next write location for the specified ring buffer. */
 static inline u32
 hv_get_next_write_location(struct hv_ring_buffer_info *ring_info)
 {
@@ -142,12 +135,7 @@ hv_get_next_write_location(struct hv_ring_buffer_info *ring_info)
 	return next;
 }
 
-/*
- * hv_set_next_write_location()
- *
- * Set the next write location for the specified ring buffer
- *
- */
+/* Set the next write location for the specified ring buffer. */
 static inline void
 hv_set_next_write_location(struct hv_ring_buffer_info *ring_info,
 		     u32 next_write_location)
@@ -155,11 +143,7 @@ hv_set_next_write_location(struct hv_ring_buffer_info *ring_info,
 	ring_info->ring_buffer->write_index = next_write_location;
 }
 
-/*
- * hv_get_next_read_location()
- *
- * Get the next read location for the specified ring buffer
- */
+/* Get the next read location for the specified ring buffer. */
 static inline u32
 hv_get_next_read_location(struct hv_ring_buffer_info *ring_info)
 {
@@ -169,10 +153,8 @@ hv_get_next_read_location(struct hv_ring_buffer_info *ring_info)
 }
 
 /*
- * hv_get_next_readlocation_withoffset()
- *
  * Get the next read location + offset for the specified ring buffer.
- * This allows the caller to skip
+ * This allows the caller to skip.
  */
 static inline u32
 hv_get_next_readlocation_withoffset(struct hv_ring_buffer_info *ring_info,
@@ -186,13 +168,7 @@ hv_get_next_readlocation_withoffset(struct hv_ring_buffer_info *ring_info,
 	return next;
 }
 
-/*
- *
- * hv_set_next_read_location()
- *
- * Set the next read location for the specified ring buffer
- *
- */
+/* Set the next read location for the specified ring buffer. */
 static inline void
 hv_set_next_read_location(struct hv_ring_buffer_info *ring_info,
 		    u32 next_read_location)
@@ -201,12 +177,7 @@ hv_set_next_read_location(struct hv_ring_buffer_info *ring_info,
 }
 
 
-/*
- *
- * hv_get_ring_buffer()
- *
- * Get the start of the ring buffer
- */
+/* Get the start of the ring buffer. */
 static inline void *
 hv_get_ring_buffer(struct hv_ring_buffer_info *ring_info)
 {
@@ -214,25 +185,14 @@ hv_get_ring_buffer(struct hv_ring_buffer_info *ring_info)
 }
 
 
-/*
- *
- * hv_get_ring_buffersize()
- *
- * Get the size of the ring buffer
- */
+/* Get the size of the ring buffer. */
 static inline u32
 hv_get_ring_buffersize(struct hv_ring_buffer_info *ring_info)
 {
 	return ring_info->ring_datasize;
 }
 
-/*
- *
- * hv_get_ring_bufferindices()
- *
- * Get the read and write indices as u64 of the specified ring buffer
- *
- */
+/* Get the read and write indices as u64 of the specified ring buffer. */
 static inline u64
 hv_get_ring_bufferindices(struct hv_ring_buffer_info *ring_info)
 {
@@ -240,12 +200,8 @@ hv_get_ring_bufferindices(struct hv_ring_buffer_info *ring_info)
 }
 
 /*
- *
- * hv_copyfrom_ringbuffer()
- *
  * Helper routine to copy to source from ring buffer.
  * Assume there is enough room. Handles wrap-around in src case only!!
- *
  */
 static u32 hv_copyfrom_ringbuffer(
 	struct hv_ring_buffer_info	*ring_info,
@@ -277,12 +233,8 @@ static u32 hv_copyfrom_ringbuffer(
 
 
 /*
- *
- * hv_copyto_ringbuffer()
- *
  * Helper routine to copy from source to ring buffer.
  * Assume there is enough room. Handles wrap-around in dest case only!!
- *
  */
 static u32 hv_copyto_ringbuffer(
 	struct hv_ring_buffer_info	*ring_info,
@@ -308,13 +260,7 @@ static u32 hv_copyto_ringbuffer(
 	return start_write_offset;
 }
 
-/*
- *
- * hv_ringbuffer_get_debuginfo()
- *
- * Get various debug metrics for the specified ring buffer
- *
- */
+/* Get various debug metrics for the specified ring buffer. */
 void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
 			    struct hv_ring_buffer_debug_info *debug_info)
 {
@@ -337,13 +283,7 @@ void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
 	}
 }
 
-/*
- *
- * hv_ringbuffer_init()
- *
- *Initialize the ring buffer
- *
- */
+/* Initialize the ring buffer. */
 int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
 		   void *buffer, u32 buflen)
 {
@@ -356,9 +296,7 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
 	ring_info->ring_buffer->read_index =
 		ring_info->ring_buffer->write_index = 0;
 
-	/*
-	 * Set the feature bit for enabling flow control.
-	 */
+	/* Set the feature bit for enabling flow control. */
 	ring_info->ring_buffer->feature_bits.value = 1;
 
 	ring_info->ring_size = buflen;
@@ -369,24 +307,12 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
 	return 0;
 }
 
-/*
- *
- * hv_ringbuffer_cleanup()
- *
- * Cleanup the ring buffer
- *
- */
+/* Cleanup the ring buffer. */
 void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info)
 {
 }
 
-/*
- *
- * hv_ringbuffer_write()
- *
- * Write to the ring buffer
- *
- */
+/* Write to the ring buffer. */
 int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 		    struct kvec *kv_list, u32 kv_count, bool *signal)
 {
@@ -411,10 +337,11 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 				&bytes_avail_toread,
 				&bytes_avail_towrite);
 
-
-	/* If there is only room for the packet, assume it is full. */
-	/* Otherwise, the next time around, we think the ring buffer */
-	/* is empty since the read index == write index */
+	/*
+	 * If there is only room for the packet, assume it is full.
+	 * Otherwise, the next time around, we think the ring buffer
+	 * is empty since the read index == write index.
+	 */
 	if (bytes_avail_towrite <= totalbytes_towrite) {
 		spin_unlock_irqrestore(&outring_info->ring_lock, flags);
 		return -EAGAIN;
@@ -453,80 +380,59 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 	return 0;
 }
 
-
-/*
- *
- * hv_ringbuffer_peek()
- *
- * Read without advancing the read index
- *
- */
-int hv_ringbuffer_peek(struct hv_ring_buffer_info *Inring_info,
-		   void *Buffer, u32 buflen)
-{
-	u32 bytes_avail_towrite;
-	u32 bytes_avail_toread;
-	u32 next_read_location = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&Inring_info->ring_lock, flags);
-
-	hv_get_ringbuffer_availbytes(Inring_info,
-				&bytes_avail_toread,
-				&bytes_avail_towrite);
-
-	/* Make sure there is something to read */
-	if (bytes_avail_toread < buflen) {
-
-		spin_unlock_irqrestore(&Inring_info->ring_lock, flags);
-
-		return -EAGAIN;
-	}
-
-	/* Convert to byte offset */
-	next_read_location = hv_get_next_read_location(Inring_info);
-
-	next_read_location = hv_copyfrom_ringbuffer(Inring_info,
-						Buffer,
-						buflen,
-						next_read_location);
-
-	spin_unlock_irqrestore(&Inring_info->ring_lock, flags);
-
-	return 0;
-}
-
-
-/*
- *
- * hv_ringbuffer_read()
- *
- * Read and advance the read index
- *
- */
-int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
-		   u32 buflen, u32 offset, bool *signal)
+int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+		       void *buffer, u32 buflen, u32 *buffer_actual_len,
+		       u64 *requestid, bool *signal, bool raw)
 {
 	u32 bytes_avail_towrite;
 	u32 bytes_avail_toread;
 	u32 next_read_location = 0;
 	u64 prev_indices = 0;
 	unsigned long flags;
+	struct vmpacket_descriptor desc;
+	u32 offset;
+	u32 packetlen;
+	int ret = 0;
 
 	if (buflen <= 0)
 		return -EINVAL;
 
 	spin_lock_irqsave(&inring_info->ring_lock, flags);
 
+	*buffer_actual_len = 0;
+	*requestid = 0;
+
 	hv_get_ringbuffer_availbytes(inring_info,
 				&bytes_avail_toread,
 				&bytes_avail_towrite);
 
 	/* Make sure there is something to read */
-	if (bytes_avail_toread < buflen) {
-		spin_unlock_irqrestore(&inring_info->ring_lock, flags);
+	if (bytes_avail_toread < sizeof(desc)) {
+		/*
+		 * No error is set when there is even no header, drivers are
+		 * supposed to analyze buffer_actual_len.
+		 */
+		goto out_unlock;
+	}
 
-		return -EAGAIN;
+	next_read_location = hv_get_next_read_location(inring_info);
+	next_read_location = hv_copyfrom_ringbuffer(inring_info, &desc,
+						    sizeof(desc),
+						    next_read_location);
+
+	offset = raw ? 0 : (desc.offset8 << 3);
+	packetlen = (desc.len8 << 3) - offset;
+	*buffer_actual_len = packetlen;
+	*requestid = desc.trans_id;
+
+	if (bytes_avail_toread < packetlen + offset) {
+		ret = -EAGAIN;
+		goto out_unlock;
+	}
+
+	if (packetlen > buflen) {
+		ret = -ENOBUFS;
+		goto out_unlock;
 	}
 
 	next_read_location =
@@ -534,7 +440,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
 
 	next_read_location = hv_copyfrom_ringbuffer(inring_info,
 						buffer,
-						buflen,
+						packetlen,
 						next_read_location);
 
 	next_read_location = hv_copyfrom_ringbuffer(inring_info,
@@ -542,17 +448,19 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info, void *buffer,
 						sizeof(u64),
 						next_read_location);
 
-	/* Make sure all reads are done before we update the read index since */
-	/* the writer may start writing to the read area once the read index */
-	/*is updated */
+	/*
+	 * Make sure all reads are done before we update the read index since
+	 * the writer may start writing to the read area once the read index
+	 * is updated.
+	 */
 	mb();
 
 	/* Update the read index */
 	hv_set_next_read_location(inring_info, next_read_location);
 
-	spin_unlock_irqrestore(&inring_info->ring_lock, flags);
-
 	*signal = hv_need_to_signal_on_read(bytes_avail_towrite, inring_info);
 
-	return 0;
+out_unlock:
+	spin_unlock_irqrestore(&inring_info->ring_lock, flags);
+	return ret;
 }
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index f19b6f7a467a..328e4c3808e0 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,7 +47,6 @@ static struct acpi_device  *hv_acpi_dev;
 
 static struct tasklet_struct msg_dpc;
 static struct completion probe_event;
-static int irq;
 
 
 static void hyperv_report_panic(struct pt_regs *regs)
@@ -531,9 +530,9 @@ static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env)
 
 static const uuid_le null_guid;
 
-static inline bool is_null_guid(const __u8 *guid)
+static inline bool is_null_guid(const uuid_le *guid)
 {
-	if (memcmp(guid, &null_guid, sizeof(uuid_le)))
+	if (uuid_le_cmp(*guid, null_guid))
 		return false;
 	return true;
 }
@@ -544,10 +543,10 @@ static inline bool is_null_guid(const __u8 *guid)
  */
 static const struct hv_vmbus_device_id *hv_vmbus_get_id(
 					const struct hv_vmbus_device_id *id,
-					const __u8 *guid)
+					const uuid_le *guid)
 {
-	for (; !is_null_guid(id->guid); id++)
-		if (!memcmp(&id->guid, guid, sizeof(uuid_le)))
+	for (; !is_null_guid(&id->guid); id++)
+		if (!uuid_le_cmp(id->guid, *guid))
 			return id;
 
 	return NULL;
@@ -563,7 +562,7 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
 	struct hv_driver *drv = drv_to_hv_drv(driver);
 	struct hv_device *hv_dev = device_to_hv_device(device);
 
-	if (hv_vmbus_get_id(drv->id_table, hv_dev->dev_type.b))
+	if (hv_vmbus_get_id(drv->id_table, &hv_dev->dev_type))
 		return 1;
 
 	return 0;
@@ -580,7 +579,7 @@ static int vmbus_probe(struct device *child_device)
 	struct hv_device *dev = device_to_hv_device(child_device);
 	const struct hv_vmbus_device_id *dev_id;
 
-	dev_id = hv_vmbus_get_id(drv->id_table, dev->dev_type.b);
+	dev_id = hv_vmbus_get_id(drv->id_table, &dev->dev_type);
 	if (drv->probe) {
 		ret = drv->probe(dev, dev_id);
 		if (ret != 0)
@@ -602,23 +601,11 @@ static int vmbus_remove(struct device *child_device)
 {
 	struct hv_driver *drv;
 	struct hv_device *dev = device_to_hv_device(child_device);
-	u32 relid = dev->channel->offermsg.child_relid;
 
 	if (child_device->driver) {
 		drv = drv_to_hv_drv(child_device->driver);
 		if (drv->remove)
 			drv->remove(dev);
-		else {
-			hv_process_channel_removal(dev->channel, relid);
-			pr_err("remove not set for driver %s\n",
-				dev_name(child_device));
-		}
-	} else {
-		/*
-		 * We don't have a driver for this device; deal with the
-		 * rescind message by removing the channel.
-		 */
-		hv_process_channel_removal(dev->channel, relid);
 	}
 
 	return 0;
@@ -653,7 +640,10 @@ static void vmbus_shutdown(struct device *child_device)
 static void vmbus_device_release(struct device *device)
 {
 	struct hv_device *hv_dev = device_to_hv_device(device);
+	struct vmbus_channel *channel = hv_dev->channel;
 
+	hv_process_channel_removal(channel,
+				   channel->offermsg.child_relid);
 	kfree(hv_dev);
 
 }
@@ -835,10 +825,9 @@ static void vmbus_isr(void)
  * Here, we
  *	- initialize the vmbus driver context
  *	- invoke the vmbus hv main init routine
- *	- get the irq resource
  *	- retrieve the channel offers
  */
-static int vmbus_bus_init(int irq)
+static int vmbus_bus_init(void)
 {
 	int ret;
 
@@ -867,7 +856,7 @@ static int vmbus_bus_init(int irq)
 	on_each_cpu(hv_synic_init, NULL, 1);
 	ret = vmbus_connect();
 	if (ret)
-		goto err_alloc;
+		goto err_connect;
 
 	if (vmbus_proto_version > VERSION_WIN7)
 		cpu_hotplug_disable();
@@ -885,6 +874,8 @@ static int vmbus_bus_init(int irq)
 
 	return 0;
 
+err_connect:
+	on_each_cpu(hv_synic_cleanup, NULL, 1);
 err_alloc:
 	hv_synic_free();
 	hv_remove_vmbus_irq();
@@ -1031,9 +1022,6 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
 	struct resource **prev_res = NULL;
 
 	switch (res->type) {
-	case ACPI_RESOURCE_TYPE_IRQ:
-		irq = res->data.irq.interrupts[0];
-		return AE_OK;
 
 	/*
 	 * "Address" descriptors are for bus windows. Ignore
@@ -1075,12 +1063,28 @@ static acpi_status vmbus_walk_resources(struct acpi_resource *res, void *ctx)
 	new_res->start = start;
 	new_res->end = end;
 
+	/*
+	 * Stick ranges from higher in address space at the front of the list.
+	 * If two ranges are adjacent, merge them.
+	 */
 	do {
 		if (!*old_res) {
 			*old_res = new_res;
 			break;
 		}
 
+		if (((*old_res)->end + 1) == new_res->start) {
+			(*old_res)->end = new_res->end;
+			kfree(new_res);
+			break;
+		}
+
+		if ((*old_res)->start == new_res->end + 1) {
+			(*old_res)->start = new_res->start;
+			kfree(new_res);
+			break;
+		}
+
 		if ((*old_res)->end < new_res->start) {
 			new_res->sibling = *old_res;
 			if (prev_res)
@@ -1191,6 +1195,23 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
 }
 EXPORT_SYMBOL_GPL(vmbus_allocate_mmio);
 
+/**
+ * vmbus_cpu_number_to_vp_number() - Map CPU to VP.
+ * @cpu_number: CPU number in Linux terms
+ *
+ * This function returns the mapping between the Linux processor
+ * number and the hypervisor's virtual processor number, useful
+ * in making hypercalls and such that talk about specific
+ * processors.
+ *
+ * Return: Virtual processor number in Hyper-V terms
+ */
+int vmbus_cpu_number_to_vp_number(int cpu_number)
+{
+	return hv_context.vp_index[cpu_number];
+}
+EXPORT_SYMBOL_GPL(vmbus_cpu_number_to_vp_number);
+
 static int vmbus_acpi_add(struct acpi_device *device)
 {
 	acpi_status result;
@@ -1275,7 +1296,7 @@ static int __init hv_acpi_init(void)
 	init_completion(&probe_event);
 
 	/*
-	 * Get irq resources first.
+	 * Get ACPI resources first.
 	 */
 	ret = acpi_bus_register_driver(&vmbus_acpi_driver);
 
@@ -1288,12 +1309,7 @@ static int __init hv_acpi_init(void)
 		goto cleanup;
 	}
 
-	if (irq <= 0) {
-		ret = -ENODEV;
-		goto cleanup;
-	}
-
-	ret = vmbus_bus_init(irq);
+	ret = vmbus_bus_init();
 	if (ret)
 		goto cleanup;
 
diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig
index 6c8921140f02..c85935f3525a 100644
--- a/drivers/hwtracing/coresight/Kconfig
+++ b/drivers/hwtracing/coresight/Kconfig
@@ -8,7 +8,7 @@ menuconfig CORESIGHT
 	  This framework provides a kernel interface for the CoreSight debug
 	  and trace drivers to register themselves with. It's intended to build
 	  a topological view of the CoreSight components based on a DT
-	  specification and configure the right serie of components when a
+	  specification and configure the right series of components when a
 	  trace source gets enabled.
 
 if CORESIGHT
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index e25492137d8b..93738dfbf631 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -548,7 +548,7 @@ static int coresight_name_match(struct device *dev, void *data)
 	to_match = data;
 	i_csdev = to_coresight_device(dev);
 
-	if (!strcmp(to_match, dev_name(&i_csdev->dev)))
+	if (to_match && !strcmp(to_match, dev_name(&i_csdev->dev)))
 		return 1;
 
 	return 0;
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 899bede81b31..9d233bbde5e1 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -617,6 +617,10 @@ const struct i2c_algorithm i2c_bit_algo = {
 };
 EXPORT_SYMBOL(i2c_bit_algo);
 
+const struct i2c_adapter_quirks i2c_bit_quirk_no_clk_stretch = {
+	.flags = I2C_AQ_NO_CLK_STRETCH,
+};
+
 /*
  * registering functions to load algorithms at runtime
  */
@@ -635,6 +639,8 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap,
 	/* register new adapter to i2c module... */
 	adap->algo = &i2c_bit_algo;
 	adap->retries = 3;
+	if (bit_adap->getscl == NULL)
+		adap->quirks = &i2c_bit_quirk_no_clk_stretch;
 
 	ret = add_adapter(adap);
 	if (ret < 0)
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 7b0aa82ea38b..0299dfa746a3 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -516,7 +516,7 @@ config I2C_EFM32
 
 config I2C_EG20T
 	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
-	depends on PCI && (X86_32 || COMPILE_TEST)
+	depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
 	help
 	  This driver is for PCH(Platform controller Hub) I2C of EG20T which
 	  is an IOH(Input/Output Hub) for x86 embedded processor.
@@ -532,6 +532,7 @@ config I2C_EG20T
 config I2C_EMEV2
 	tristate "EMMA Mobile series I2C adapter"
 	depends on HAVE_CLK
+	select I2C_SLAVE
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Renesas Electronics EM/EV family of processors.
@@ -963,11 +964,11 @@ config I2C_XILINX
 	  will be called xilinx_i2c.
 
 config I2C_XLR
-	tristate "XLR I2C support"
-	depends on CPU_XLR
+	tristate "Netlogic XLR and Sigma Designs I2C support"
+	depends on CPU_XLR || ARCH_TANGOX
 	help
 	  This driver enables support for the on-chip I2C interface of
-	  the Netlogic XLR/XLS MIPS processors.
+	  the Netlogic XLR/XLS MIPS processors and Sigma Designs SOCs.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-xlr.
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 10835d1f559b..921d32bfcda8 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -64,6 +64,8 @@
 #define	AT91_TWI_IADR		0x000c	/* Internal Address Register */
 
 #define	AT91_TWI_CWGR		0x0010	/* Clock Waveform Generator Reg */
+#define	AT91_TWI_CWGR_HOLD_MAX	0x1f
+#define	AT91_TWI_CWGR_HOLD(x)	(((x) & AT91_TWI_CWGR_HOLD_MAX) << 24)
 
 #define	AT91_TWI_SR		0x0020	/* Status Register */
 #define	AT91_TWI_TXCOMP		BIT(0)	/* Transmission Complete */
@@ -110,6 +112,7 @@ struct at91_twi_pdata {
 	unsigned clk_offset;
 	bool has_unre_flag;
 	bool has_alt_cmd;
+	bool has_hold_field;
 	struct at_dma_slave dma_slave;
 };
 
@@ -187,10 +190,11 @@ static void at91_init_twi_bus(struct at91_twi_dev *dev)
  */
 static void at91_calc_twi_clock(struct at91_twi_dev *dev, int twi_clk)
 {
-	int ckdiv, cdiv, div;
+	int ckdiv, cdiv, div, hold = 0;
 	struct at91_twi_pdata *pdata = dev->pdata;
 	int offset = pdata->clk_offset;
 	int max_ckdiv = pdata->clk_max_div;
+	u32 twd_hold_time_ns = 0;
 
 	div = max(0, (int)DIV_ROUND_UP(clk_get_rate(dev->clk),
 				       2 * twi_clk) - offset);
@@ -204,8 +208,33 @@ static void at91_calc_twi_clock(struct at91_twi_dev *dev, int twi_clk)
 		cdiv = 255;
 	}
 
-	dev->twi_cwgr_reg = (ckdiv << 16) | (cdiv << 8) | cdiv;
-	dev_dbg(dev->dev, "cdiv %d ckdiv %d\n", cdiv, ckdiv);
+	if (pdata->has_hold_field) {
+		of_property_read_u32(dev->dev->of_node, "i2c-sda-hold-time-ns",
+				     &twd_hold_time_ns);
+
+		/*
+		 * hold time = HOLD + 3 x T_peripheral_clock
+		 * Use clk rate in kHz to prevent overflows when computing
+		 * hold.
+		 */
+		hold = DIV_ROUND_UP(twd_hold_time_ns
+				    * (clk_get_rate(dev->clk) / 1000), 1000000);
+		hold -= 3;
+		if (hold < 0)
+			hold = 0;
+		if (hold > AT91_TWI_CWGR_HOLD_MAX) {
+			dev_warn(dev->dev,
+				 "HOLD field set to its maximum value (%d instead of %d)\n",
+				 AT91_TWI_CWGR_HOLD_MAX, hold);
+			hold = AT91_TWI_CWGR_HOLD_MAX;
+		}
+	}
+
+	dev->twi_cwgr_reg = (ckdiv << 16) | (cdiv << 8) | cdiv
+			    | AT91_TWI_CWGR_HOLD(hold);
+
+	dev_dbg(dev->dev, "cdiv %d ckdiv %d hold %d (%d ns)\n",
+		cdiv, ckdiv, hold, twd_hold_time_ns);
 }
 
 static void at91_twi_dma_cleanup(struct at91_twi_dev *dev)
@@ -797,6 +826,7 @@ static struct at91_twi_pdata at91rm9200_config = {
 	.clk_offset = 3,
 	.has_unre_flag = true,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
 };
 
 static struct at91_twi_pdata at91sam9261_config = {
@@ -804,6 +834,7 @@ static struct at91_twi_pdata at91sam9261_config = {
 	.clk_offset = 4,
 	.has_unre_flag = false,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
 };
 
 static struct at91_twi_pdata at91sam9260_config = {
@@ -811,6 +842,7 @@ static struct at91_twi_pdata at91sam9260_config = {
 	.clk_offset = 4,
 	.has_unre_flag = false,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
 };
 
 static struct at91_twi_pdata at91sam9g20_config = {
@@ -818,6 +850,7 @@ static struct at91_twi_pdata at91sam9g20_config = {
 	.clk_offset = 4,
 	.has_unre_flag = false,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
 };
 
 static struct at91_twi_pdata at91sam9g10_config = {
@@ -825,6 +858,7 @@ static struct at91_twi_pdata at91sam9g10_config = {
 	.clk_offset = 4,
 	.has_unre_flag = false,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
 };
 
 static const struct platform_device_id at91_twi_devtypes[] = {
@@ -854,6 +888,15 @@ static struct at91_twi_pdata at91sam9x5_config = {
 	.clk_offset = 4,
 	.has_unre_flag = false,
 	.has_alt_cmd = false,
+	.has_hold_field = false,
+};
+
+static struct at91_twi_pdata sama5d4_config = {
+	.clk_max_div = 7,
+	.clk_offset = 4,
+	.has_unre_flag = false,
+	.has_alt_cmd = false,
+	.has_hold_field = true,
 };
 
 static struct at91_twi_pdata sama5d2_config = {
@@ -861,6 +904,7 @@ static struct at91_twi_pdata sama5d2_config = {
 	.clk_offset = 4,
 	.has_unre_flag = true,
 	.has_alt_cmd = true,
+	.has_hold_field = true,
 };
 
 static const struct of_device_id atmel_twi_dt_ids[] = {
@@ -883,6 +927,9 @@ static const struct of_device_id atmel_twi_dt_ids[] = {
 		.compatible = "atmel,at91sam9x5-i2c",
 		.data = &at91sam9x5_config,
 	}, {
+		.compatible = "atmel,sama5d4-i2c",
+		.data = &sama5d4_config,
+	}, {
 		.compatible = "atmel,sama5d2-i2c",
 		.data = &sama5d2_config,
 	}, {
diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index 3032b89ac60b..818b051d25e6 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -222,6 +222,15 @@ static const struct i2c_algorithm bcm2835_i2c_algo = {
 	.functionality	= bcm2835_i2c_func,
 };
 
+/*
+ * This HW was reported to have problems with clock stretching:
+ * http://www.advamation.com/knowhow/raspberrypi/rpi-i2c-bug.html
+ * https://www.raspberrypi.org/forums/viewtopic.php?p=146272
+ */
+static const struct i2c_adapter_quirks bcm2835_i2c_quirks = {
+	.flags = I2C_AQ_NO_CLK_STRETCH,
+};
+
 static int bcm2835_i2c_probe(struct platform_device *pdev)
 {
 	struct bcm2835_i2c_dev *i2c_dev;
@@ -293,6 +302,7 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
 	adap->algo = &bcm2835_i2c_algo;
 	adap->dev.parent = &pdev->dev;
 	adap->dev.of_node = pdev->dev.of_node;
+	adap->quirks = &bcm2835_i2c_quirks;
 
 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0);
 
diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 8e9637eea512..3711df1d4526 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -25,13 +25,16 @@
 #include <linux/version.h>
 
 #define N_DATA_REGS					8
-#define N_DATA_BYTES					(N_DATA_REGS * 4)
 
-/* BSC count register field definitions */
-#define BSC_CNT_REG1_MASK				0x0000003f
-#define BSC_CNT_REG1_SHIFT				0
-#define BSC_CNT_REG2_MASK				0x00000fc0
-#define BSC_CNT_REG2_SHIFT				6
+/*
+ * PER_I2C/BSC count register mask depends on 1 byte/4 byte data register
+ * size. Cable modem and DSL SoCs with Peripheral i2c cores use 1 byte per
+ * data register whereas STB SoCs use 4 byte per data register transfer,
+ * account for this difference in total count per transaction and mask to
+ * use.
+ */
+#define BSC_CNT_REG1_MASK(nb)	(nb == 1 ? GENMASK(3, 0) : GENMASK(5, 0))
+#define BSC_CNT_REG1_SHIFT	0
 
 /* BSC CTL register field definitions */
 #define BSC_CTL_REG_DTF_MASK				0x00000003
@@ -41,7 +44,7 @@
 #define BSC_CTL_REG_INT_EN_SHIFT			6
 #define BSC_CTL_REG_DIV_CLK_MASK			0x00000080
 
-/* BSC_IIC_ENABLE r/w enable and interrupt field defintions */
+/* BSC_IIC_ENABLE r/w enable and interrupt field definitions */
 #define BSC_IIC_EN_RESTART_MASK				0x00000040
 #define BSC_IIC_EN_NOSTART_MASK				0x00000020
 #define BSC_IIC_EN_NOSTOP_MASK				0x00000010
@@ -169,6 +172,7 @@ struct brcmstb_i2c_dev {
 	struct completion done;
 	bool is_suspended;
 	u32 clk_freq_hz;
+	int data_regsz;
 };
 
 /* register accessors for both be and le cpu arch */
@@ -186,6 +190,16 @@ struct brcmstb_i2c_dev {
 #define bsc_writel(_dev, _val, _reg)					\
 	__bsc_writel(_val, _dev->base + offsetof(struct bsc_regs, _reg))
 
+static inline int brcmstb_i2c_get_xfersz(struct brcmstb_i2c_dev *dev)
+{
+	return (N_DATA_REGS * dev->data_regsz);
+}
+
+static inline int brcmstb_i2c_get_data_regsz(struct brcmstb_i2c_dev *dev)
+{
+	return dev->data_regsz;
+}
+
 static void brcmstb_i2c_enable_disable_irq(struct brcmstb_i2c_dev *dev,
 					   bool int_en)
 {
@@ -323,14 +337,16 @@ static int brcmstb_i2c_xfer_bsc_data(struct brcmstb_i2c_dev *dev,
 				     u8 *buf, unsigned int len,
 				     struct i2c_msg *pmsg)
 {
-	int cnt, byte, rc;
+	int cnt, byte, i, rc;
 	enum bsc_xfer_cmd cmd;
 	u32 ctl_reg;
 	struct bsc_regs *pi2creg = dev->bsc_regmap;
 	int no_ack = pmsg->flags & I2C_M_IGNORE_NAK;
+	int data_regsz = brcmstb_i2c_get_data_regsz(dev);
+	int xfersz = brcmstb_i2c_get_xfersz(dev);
 
 	/* see if the transaction needs to check NACK conditions */
-	if (no_ack || len <= N_DATA_BYTES) {
+	if (no_ack || len <= xfersz) {
 		cmd = (pmsg->flags & I2C_M_RD) ? CMD_RD_NOACK
 			: CMD_WR_NOACK;
 		pi2creg->ctlhi_reg |= BSC_CTLHI_REG_IGNORE_ACK_MASK;
@@ -348,20 +364,22 @@ static int brcmstb_i2c_xfer_bsc_data(struct brcmstb_i2c_dev *dev,
 		pi2creg->ctl_reg = ctl_reg | DTF_RD_MASK;
 
 	/* set the read/write length */
-	bsc_writel(dev, BSC_CNT_REG1_MASK & (len << BSC_CNT_REG1_SHIFT),
-		   cnt_reg);
+	bsc_writel(dev, BSC_CNT_REG1_MASK(data_regsz) &
+		   (len << BSC_CNT_REG1_SHIFT), cnt_reg);
 
 	/* Write data into data_in register */
+
 	if (cmd == CMD_WR || cmd == CMD_WR_NOACK) {
-		for (cnt = 0; cnt < len; cnt += 4) {
+		for (cnt = 0, i = 0; cnt < len; cnt += data_regsz, i++) {
 			u32 word = 0;
 
-			for (byte = 0; byte < 4; byte++) {
-				word >>= 8;
+			for (byte = 0; byte < data_regsz; byte++) {
+				word >>= BITS_PER_BYTE;
 				if ((cnt + byte) < len)
-					word |= buf[cnt + byte] << 24;
+					word |= buf[cnt + byte] <<
+					(BITS_PER_BYTE * (data_regsz - 1));
 			}
-			bsc_writel(dev, word, data_in[cnt >> 2]);
+			bsc_writel(dev, word, data_in[i]);
 		}
 	}
 
@@ -373,14 +391,15 @@ static int brcmstb_i2c_xfer_bsc_data(struct brcmstb_i2c_dev *dev,
 		return rc;
 	}
 
+	/* Read data from data_out register */
 	if (cmd == CMD_RD || cmd == CMD_RD_NOACK) {
-		for (cnt = 0; cnt < len; cnt += 4) {
-			u32 data = bsc_readl(dev, data_out[cnt >> 2]);
+		for (cnt = 0, i = 0; cnt < len; cnt += data_regsz, i++) {
+			u32 data = bsc_readl(dev, data_out[i]);
 
-			for (byte = 0; byte < 4 &&
+			for (byte = 0; byte < data_regsz &&
 				     (byte + cnt) < len; byte++) {
 				buf[cnt + byte] = data & 0xff;
-				data >>= 8;
+				data >>= BITS_PER_BYTE;
 			}
 		}
 	}
@@ -448,6 +467,7 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
 	int bytes_to_xfer;
 	u8 *tmp_buf;
 	int len = 0;
+	int xfersz = brcmstb_i2c_get_xfersz(dev);
 
 	if (dev->is_suspended)
 		return -EBUSY;
@@ -482,9 +502,9 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
 
 		/* Perform data transfer */
 		while (len) {
-			bytes_to_xfer = min(len, N_DATA_BYTES);
+			bytes_to_xfer = min(len, xfersz);
 
-			if (len <= N_DATA_BYTES && i == (num - 1))
+			if (len <= xfersz && i == (num - 1))
 				brcmstb_set_i2c_start_stop(dev,
 							   ~(COND_START_STOP));
 
@@ -542,8 +562,12 @@ static void brcmstb_i2c_set_bus_speed(struct brcmstb_i2c_dev *dev)
 
 static void brcmstb_i2c_set_bsc_reg_defaults(struct brcmstb_i2c_dev *dev)
 {
-	/* 4 byte data register */
-	dev->bsc_regmap->ctlhi_reg = BSC_CTLHI_REG_DATAREG_SIZE_MASK;
+	if (brcmstb_i2c_get_data_regsz(dev) == sizeof(u32))
+		/* set 4 byte data in/out xfers  */
+		dev->bsc_regmap->ctlhi_reg = BSC_CTLHI_REG_DATAREG_SIZE_MASK;
+	else
+		dev->bsc_regmap->ctlhi_reg &= ~BSC_CTLHI_REG_DATAREG_SIZE_MASK;
+
 	bsc_writel(dev, dev->bsc_regmap->ctlhi_reg, ctlhi_reg);
 	/* set bus speed */
 	brcmstb_i2c_set_bus_speed(dev);
@@ -608,6 +632,13 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
 		dev->clk_freq_hz = bsc_clk[0].hz;
 	}
 
+	/* set the data in/out register size for compatible SoCs */
+	if (of_device_is_compatible(dev->device->of_node,
+				    "brcmstb,brcmper-i2c"))
+		dev->data_regsz = sizeof(u8);
+	else
+		dev->data_regsz = sizeof(u32);
+
 	brcmstb_i2c_set_bsc_reg_defaults(dev);
 
 	/* Add the i2c adapter */
@@ -674,6 +705,7 @@ static SIMPLE_DEV_PM_OPS(brcmstb_i2c_pm, brcmstb_i2c_suspend,
 
 static const struct of_device_id brcmstb_i2c_of_match[] = {
 	{.compatible = "brcm,brcmstb-i2c"},
+	{.compatible = "brcm,brcmper-i2c"},
 	{},
 };
 MODULE_DEVICE_TABLE(of, brcmstb_i2c_of_match);
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
index 84deed6571bd..6b08d1607b7a 100644
--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
+#include <linux/pm_runtime.h>
 
 /* Register offsets for the I2C device. */
 #define CDNS_I2C_CR_OFFSET		0x00 /* Control Register, RW */
@@ -96,6 +97,8 @@
 					 CDNS_I2C_IXR_COMP)
 
 #define CDNS_I2C_TIMEOUT		msecs_to_jiffies(1000)
+/* timeout for pm runtime autosuspend */
+#define CNDS_I2C_PM_TIMEOUT		1000	/* ms */
 
 #define CDNS_I2C_FIFO_DEPTH		16
 /* FIFO depth at which the DATA interrupt occurs */
@@ -128,7 +131,6 @@
  * @xfer_done:		Transfer complete status
  * @p_send_buf:		Pointer to transmit buffer
  * @p_recv_buf:		Pointer to receive buffer
- * @suspended:		Flag holding the device's PM status
  * @send_count:		Number of bytes still expected to send
  * @recv_count:		Number of bytes still expected to receive
  * @curr_recv_count:	Number of bytes to be received in current transfer
@@ -141,6 +143,7 @@
  * @quirks:		flag for broken hold bit usage in r1p10
  */
 struct cdns_i2c {
+	struct device		*dev;
 	void __iomem *membase;
 	struct i2c_adapter adap;
 	struct i2c_msg *p_msg;
@@ -148,7 +151,6 @@ struct cdns_i2c {
 	struct completion xfer_done;
 	unsigned char *p_send_buf;
 	unsigned char *p_recv_buf;
-	u8 suspended;
 	unsigned int send_count;
 	unsigned int recv_count;
 	unsigned int curr_recv_count;
@@ -569,9 +571,14 @@ static int cdns_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 	struct cdns_i2c *id = adap->algo_data;
 	bool hold_quirk;
 
+	ret = pm_runtime_get_sync(id->dev);
+	if (ret < 0)
+		return ret;
 	/* Check if the bus is free */
-	if (cdns_i2c_readreg(CDNS_I2C_SR_OFFSET) & CDNS_I2C_SR_BA)
-		return -EAGAIN;
+	if (cdns_i2c_readreg(CDNS_I2C_SR_OFFSET) & CDNS_I2C_SR_BA) {
+		ret = -EAGAIN;
+		goto out;
+	}
 
 	hold_quirk = !!(id->quirks & CDNS_I2C_BROKEN_HOLD_BIT);
 	/*
@@ -590,7 +597,8 @@ static int cdns_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 			if (msgs[count].flags & I2C_M_RD) {
 				dev_warn(adap->dev.parent,
 					 "Can't do repeated start after a receive message\n");
-				return -EOPNOTSUPP;
+				ret = -EOPNOTSUPP;
+				goto out;
 			}
 		}
 		id->bus_hold_flag = 1;
@@ -608,20 +616,26 @@ static int cdns_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 
 		ret = cdns_i2c_process_msg(id, msgs, adap);
 		if (ret)
-			return ret;
+			goto out;
 
 		/* Report the other error interrupts to application */
 		if (id->err_status) {
 			cdns_i2c_master_reset(adap);
 
-			if (id->err_status & CDNS_I2C_IXR_NACK)
-				return -ENXIO;
-
-			return -EIO;
+			if (id->err_status & CDNS_I2C_IXR_NACK) {
+				ret = -ENXIO;
+				goto out;
+			}
+			ret = -EIO;
+			goto out;
 		}
 	}
 
-	return num;
+	ret = num;
+out:
+	pm_runtime_mark_last_busy(id->dev);
+	pm_runtime_put_autosuspend(id->dev);
+	return ret;
 }
 
 /**
@@ -760,7 +774,7 @@ static int cdns_i2c_clk_notifier_cb(struct notifier_block *nb, unsigned long
 	struct clk_notifier_data *ndata = data;
 	struct cdns_i2c *id = to_cdns_i2c(nb);
 
-	if (id->suspended)
+	if (pm_runtime_suspended(id->dev))
 		return NOTIFY_OK;
 
 	switch (event) {
@@ -808,14 +822,12 @@ static int cdns_i2c_clk_notifier_cb(struct notifier_block *nb, unsigned long
  *
  * Return: 0 always
  */
-static int __maybe_unused cdns_i2c_suspend(struct device *_dev)
+static int __maybe_unused cdns_i2c_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = container_of(_dev,
-			struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct cdns_i2c *xi2c = platform_get_drvdata(pdev);
 
 	clk_disable(xi2c->clk);
-	xi2c->suspended = 1;
 
 	return 0;
 }
@@ -828,26 +840,25 @@ static int __maybe_unused cdns_i2c_suspend(struct device *_dev)
  *
  * Return: 0 on success and error value on error
  */
-static int __maybe_unused cdns_i2c_resume(struct device *_dev)
+static int __maybe_unused cdns_i2c_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = container_of(_dev,
-			struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct cdns_i2c *xi2c = platform_get_drvdata(pdev);
 	int ret;
 
 	ret = clk_enable(xi2c->clk);
 	if (ret) {
-		dev_err(_dev, "Cannot enable clock.\n");
+		dev_err(dev, "Cannot enable clock.\n");
 		return ret;
 	}
 
-	xi2c->suspended = 0;
-
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(cdns_i2c_dev_pm_ops, cdns_i2c_suspend,
-			 cdns_i2c_resume);
+static const struct dev_pm_ops cdns_i2c_dev_pm_ops = {
+	SET_RUNTIME_PM_OPS(cdns_i2c_runtime_suspend,
+			   cdns_i2c_runtime_resume, NULL)
+};
 
 static const struct cdns_platform_data r1p10_i2c_def = {
 	.quirks = CDNS_I2C_BROKEN_HOLD_BIT,
@@ -881,6 +892,7 @@ static int cdns_i2c_probe(struct platform_device *pdev)
 	if (!id)
 		return -ENOMEM;
 
+	id->dev = &pdev->dev;
 	platform_set_drvdata(pdev, id);
 
 	match = of_match_node(cdns_i2c_of_match, pdev->dev.of_node);
@@ -913,10 +925,14 @@ static int cdns_i2c_probe(struct platform_device *pdev)
 		return PTR_ERR(id->clk);
 	}
 	ret = clk_prepare_enable(id->clk);
-	if (ret) {
+	if (ret)
 		dev_err(&pdev->dev, "Unable to enable clock.\n");
-		return ret;
-	}
+
+	pm_runtime_enable(id->dev);
+	pm_runtime_set_autosuspend_delay(id->dev, CNDS_I2C_PM_TIMEOUT);
+	pm_runtime_use_autosuspend(id->dev);
+	pm_runtime_set_active(id->dev);
+
 	id->clk_rate_change_nb.notifier_call = cdns_i2c_clk_notifier_cb;
 	if (clk_notifier_register(id->clk, &id->clk_rate_change_nb))
 		dev_warn(&pdev->dev, "Unable to register clock notifier.\n");
@@ -966,6 +982,8 @@ static int cdns_i2c_probe(struct platform_device *pdev)
 
 err_clk_dis:
 	clk_disable_unprepare(id->clk);
+	pm_runtime_set_suspended(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
 
@@ -984,6 +1002,7 @@ static int cdns_i2c_remove(struct platform_device *pdev)
 	i2c_del_adapter(&id->adap);
 	clk_notifier_unregister(id->clk, &id->clk_rate_change_nb);
 	clk_disable_unprepare(id->clk);
+	pm_runtime_disable(&pdev->dev);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index 7d7ae97476e2..e38c2bbba940 100644
--- a/drivers/i2c/busses/i2c-designware-baytrail.c
+++ b/drivers/i2c/busses/i2c-designware-baytrail.c
@@ -34,8 +34,7 @@ static int get_sem(struct device *dev, u32 *sem)
 	u32 data;
 	int ret;
 
-	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ, PUNIT_SEMAPHORE,
-				&data);
+	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, PUNIT_SEMAPHORE, &data);
 	if (ret) {
 		dev_err(dev, "iosf failed to read punit semaphore\n");
 		return ret;
@@ -50,21 +49,19 @@ static void reset_semaphore(struct device *dev)
 {
 	u32 data;
 
-	if (iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
-				PUNIT_SEMAPHORE, &data)) {
+	if (iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, PUNIT_SEMAPHORE, &data)) {
 		dev_err(dev, "iosf failed to reset punit semaphore during read\n");
 		return;
 	}
 
 	data &= ~PUNIT_SEMAPHORE_BIT;
-	if (iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				PUNIT_SEMAPHORE, data))
+	if (iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, PUNIT_SEMAPHORE, data))
 		dev_err(dev, "iosf failed to reset punit semaphore during write\n");
 }
 
 static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 {
-	u32 sem;
+	u32 sem = PUNIT_SEMAPHORE_ACQUIRE;
 	int ret;
 	unsigned long start, end;
 
@@ -77,8 +74,7 @@ static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 		return 0;
 
 	/* host driver writes to side band semaphore register */
-	ret = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				PUNIT_SEMAPHORE, PUNIT_SEMAPHORE_ACQUIRE);
+	ret = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, PUNIT_SEMAPHORE, sem);
 	if (ret) {
 		dev_err(dev->dev, "iosf punit semaphore request failed\n");
 		return ret;
@@ -102,8 +98,7 @@ static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 	dev_err(dev->dev, "punit semaphore timed out, resetting\n");
 	reset_semaphore(dev->dev);
 
-	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
-				PUNIT_SEMAPHORE, &sem);
+	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, PUNIT_SEMAPHORE, &sem);
 	if (ret)
 		dev_err(dev->dev, "iosf failed to read punit semaphore\n");
 	else
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index de7fbbb374cd..ba9732c236c5 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -271,6 +271,17 @@ static void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable)
 		 enable ? "en" : "dis");
 }
 
+static unsigned long i2c_dw_clk_rate(struct dw_i2c_dev *dev)
+{
+	/*
+	 * Clock is not necessary if we got LCNT/HCNT values directly from
+	 * the platform code.
+	 */
+	if (WARN_ON_ONCE(!dev->get_clk_rate_khz))
+		return 0;
+	return dev->get_clk_rate_khz(dev);
+}
+
 /**
  * i2c_dw_init() - initialize the designware i2c master hardware
  * @dev: device private data
@@ -281,7 +292,6 @@ static void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable)
  */
 int i2c_dw_init(struct dw_i2c_dev *dev)
 {
-	u32 input_clock_khz;
 	u32 hcnt, lcnt;
 	u32 reg;
 	u32 sda_falling_time, scl_falling_time;
@@ -295,8 +305,6 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 		}
 	}
 
-	input_clock_khz = dev->get_clk_rate_khz(dev);
-
 	reg = dw_readl(dev, DW_IC_COMP_TYPE);
 	if (reg == ___constant_swab32(DW_IC_COMP_TYPE_VALUE)) {
 		/* Configure register endianess access */
@@ -325,12 +333,12 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 		hcnt = dev->ss_hcnt;
 		lcnt = dev->ss_lcnt;
 	} else {
-		hcnt = i2c_dw_scl_hcnt(input_clock_khz,
+		hcnt = i2c_dw_scl_hcnt(i2c_dw_clk_rate(dev),
 					4000,	/* tHD;STA = tHIGH = 4.0 us */
 					sda_falling_time,
 					0,	/* 0: DW default, 1: Ideal */
 					0);	/* No offset */
-		lcnt = i2c_dw_scl_lcnt(input_clock_khz,
+		lcnt = i2c_dw_scl_lcnt(i2c_dw_clk_rate(dev),
 					4700,	/* tLOW = 4.7 us */
 					scl_falling_time,
 					0);	/* No offset */
@@ -344,12 +352,12 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 		hcnt = dev->fs_hcnt;
 		lcnt = dev->fs_lcnt;
 	} else {
-		hcnt = i2c_dw_scl_hcnt(input_clock_khz,
+		hcnt = i2c_dw_scl_hcnt(i2c_dw_clk_rate(dev),
 					600,	/* tHD;STA = tHIGH = 0.6 us */
 					sda_falling_time,
 					0,	/* 0: DW default, 1: Ideal */
 					0);	/* No offset */
-		lcnt = i2c_dw_scl_lcnt(input_clock_khz,
+		lcnt = i2c_dw_scl_lcnt(i2c_dw_clk_rate(dev),
 					1300,	/* tLOW = 1.3 us */
 					scl_falling_time,
 					0);	/* No offset */
@@ -860,6 +868,7 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
 
 	snprintf(adap->name, sizeof(adap->name),
 		 "Synopsys DesignWare I2C adapter");
+	adap->retries = 3;
 	adap->algo = &i2c_dw_algo;
 	adap->dev.parent = dev->dev;
 	i2c_set_adapdata(adap, dev);
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 1543d35d228d..7368be000c96 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -162,7 +162,7 @@ static struct dw_pci_controller dw_pci_controllers[] = {
 #ifdef CONFIG_PM
 static int i2c_dw_pci_suspend(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+	struct pci_dev *pdev = to_pci_dev(dev);
 
 	i2c_dw_disable(pci_get_drvdata(pdev));
 	return 0;
@@ -170,7 +170,7 @@ static int i2c_dw_pci_suspend(struct device *dev)
 
 static int i2c_dw_pci_resume(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+	struct pci_dev *pdev = to_pci_dev(dev);
 
 	return i2c_dw_init(pci_get_drvdata(pdev));
 }
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 6b00061c3746..438f1b4964c0 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -36,6 +36,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
@@ -122,6 +123,8 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
 	{ "80860F41", 0 },
 	{ "808622C1", 0 },
 	{ "AMD0010", ACCESS_INTR_MASK },
+	{ "AMDI0510", 0 },
+	{ "APMC0D0F", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match);
@@ -132,12 +135,24 @@ static inline int dw_i2c_acpi_configure(struct platform_device *pdev)
 }
 #endif
 
+static int i2c_dw_plat_prepare_clk(struct dw_i2c_dev *i_dev, bool prepare)
+{
+	if (IS_ERR(i_dev->clk))
+		return PTR_ERR(i_dev->clk);
+
+	if (prepare)
+		return clk_prepare_enable(i_dev->clk);
+
+	clk_disable_unprepare(i_dev->clk);
+	return 0;
+}
+
 static int dw_i2c_plat_probe(struct platform_device *pdev)
 {
+	struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct dw_i2c_dev *dev;
 	struct i2c_adapter *adap;
 	struct resource *mem;
-	struct dw_i2c_platform_data *pdata;
 	int irq, r;
 	u32 clk_freq, ht = 0;
 
@@ -161,33 +176,28 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	/* fast mode by default because of legacy reasons */
 	clk_freq = 400000;
 
-	if (has_acpi_companion(&pdev->dev)) {
-		dw_i2c_acpi_configure(pdev);
-	} else if (pdev->dev.of_node) {
-		of_property_read_u32(pdev->dev.of_node,
-					"i2c-sda-hold-time-ns", &ht);
-
-		of_property_read_u32(pdev->dev.of_node,
-				     "i2c-sda-falling-time-ns",
-				     &dev->sda_falling_time);
-		of_property_read_u32(pdev->dev.of_node,
-				     "i2c-scl-falling-time-ns",
-				     &dev->scl_falling_time);
-
-		of_property_read_u32(pdev->dev.of_node, "clock-frequency",
-				     &clk_freq);
-
-		/* Only standard mode at 100kHz and fast mode at 400kHz
-		 * are supported.
-		 */
-		if (clk_freq != 100000 && clk_freq != 400000) {
-			dev_err(&pdev->dev, "Only 100kHz and 400kHz supported");
-			return -EINVAL;
-		}
+	if (pdata) {
+		clk_freq = pdata->i2c_scl_freq;
 	} else {
-		pdata = dev_get_platdata(&pdev->dev);
-		if (pdata)
-			clk_freq = pdata->i2c_scl_freq;
+		device_property_read_u32(&pdev->dev, "i2c-sda-hold-time-ns",
+					 &ht);
+		device_property_read_u32(&pdev->dev, "i2c-sda-falling-time-ns",
+					 &dev->sda_falling_time);
+		device_property_read_u32(&pdev->dev, "i2c-scl-falling-time-ns",
+					 &dev->scl_falling_time);
+		device_property_read_u32(&pdev->dev, "clock-frequency",
+					 &clk_freq);
+	}
+
+	if (has_acpi_companion(&pdev->dev))
+		dw_i2c_acpi_configure(pdev);
+
+	/*
+	 * Only standard mode at 100kHz and fast mode at 400kHz are supported.
+	 */
+	if (clk_freq != 100000 && clk_freq != 400000) {
+		dev_err(&pdev->dev, "Only 100kHz and 400kHz supported");
+		return -EINVAL;
 	}
 
 	r = i2c_dw_eval_lock_support(dev);
@@ -209,16 +219,13 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 			DW_IC_CON_RESTART_EN | DW_IC_CON_SPEED_FAST;
 
 	dev->clk = devm_clk_get(&pdev->dev, NULL);
-	dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz;
-	if (IS_ERR(dev->clk))
-		return PTR_ERR(dev->clk);
-	clk_prepare_enable(dev->clk);
+	if (!i2c_dw_plat_prepare_clk(dev, true)) {
+		dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz;
 
-	if (!dev->sda_hold_time && ht) {
-		u32 ic_clk = dev->get_clk_rate_khz(dev);
-
-		dev->sda_hold_time = div_u64((u64)ic_clk * ht + 500000,
-					     1000000);
+		if (!dev->sda_hold_time && ht)
+			dev->sda_hold_time = div_u64(
+				(u64)dev->get_clk_rate_khz(dev) * ht + 500000,
+				1000000);
 	}
 
 	if (!dev->tx_fifo_depth) {
@@ -300,7 +307,7 @@ static int dw_i2c_plat_suspend(struct device *dev)
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
 
 	i2c_dw_disable(i_dev);
-	clk_disable_unprepare(i_dev->clk);
+	i2c_dw_plat_prepare_clk(i_dev, false);
 
 	return 0;
 }
@@ -310,7 +317,7 @@ static int dw_i2c_plat_resume(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
 
-	clk_prepare_enable(i_dev->clk);
+	i2c_dw_plat_prepare_clk(i_dev, true);
 
 	if (!i_dev->pm_runtime_disabled)
 		i2c_dw_init(i_dev);
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 76e699f9ed97..137125b5eae7 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -795,6 +795,7 @@ static int pch_i2c_probe(struct pci_dev *pdev,
 		/* base_addr + offset; */
 		adap_info->pch_data[i].pch_base_address = base_addr + 0x100 * i;
 
+		pch_adap->dev.of_node = pdev->dev.of_node;
 		pch_adap->dev.parent = &pdev->dev;
 
 		pch_i2c_init(&adap_info->pch_data[i]);
diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c
index 192ef6b50c79..96bb4e749012 100644
--- a/drivers/i2c/busses/i2c-emev2.c
+++ b/drivers/i2c/busses/i2c-emev2.c
@@ -71,6 +71,7 @@ struct em_i2c_device {
 	struct i2c_adapter adap;
 	struct completion msg_done;
 	struct clk *sclk;
+	struct i2c_client *slave;
 };
 
 static inline void em_clear_set_bit(struct em_i2c_device *priv, u8 clear, u8 set, u8 reg)
@@ -226,22 +227,131 @@ static int em_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 	return num;
 }
 
+static bool em_i2c_slave_irq(struct em_i2c_device *priv)
+{
+	u8 status, value;
+	enum i2c_slave_event event;
+	int ret;
+
+	if (!priv->slave)
+		return false;
+
+	status = readb(priv->base + I2C_OFS_IICSE0);
+
+	/* Extension code, do not participate */
+	if (status & I2C_BIT_EXC0) {
+		em_clear_set_bit(priv, 0, I2C_BIT_LREL0, I2C_OFS_IICC0);
+		return true;
+	}
+
+	/* Stop detected, we don't know if it's for slave or master */
+	if (status & I2C_BIT_SPD0) {
+		/* Notify slave device */
+		i2c_slave_event(priv->slave, I2C_SLAVE_STOP, &value);
+		/* Pretend we did not handle the interrupt */
+		return false;
+	}
+
+	/* Only handle interrupts addressed to us */
+	if (!(status & I2C_BIT_COI0))
+		return false;
+
+	/* Enable stop interrupts */
+	em_clear_set_bit(priv, 0, I2C_BIT_SPIE0, I2C_OFS_IICC0);
+
+	/* Transmission or Reception */
+	if (status & I2C_BIT_TRC0) {
+		if (status & I2C_BIT_ACKD0) {
+			/* 9 bit interrupt mode */
+			em_clear_set_bit(priv, 0, I2C_BIT_WTIM0, I2C_OFS_IICC0);
+
+			/* Send data */
+			event = status & I2C_BIT_STD0 ?
+				I2C_SLAVE_READ_REQUESTED :
+				I2C_SLAVE_READ_PROCESSED;
+			i2c_slave_event(priv->slave, event, &value);
+			writeb(value, priv->base + I2C_OFS_IIC0);
+		} else {
+			/* NACK, stop transmitting */
+			em_clear_set_bit(priv, 0, I2C_BIT_LREL0, I2C_OFS_IICC0);
+		}
+	} else {
+		/* 8 bit interrupt mode */
+		em_clear_set_bit(priv, I2C_BIT_WTIM0, I2C_BIT_ACKE0,
+				I2C_OFS_IICC0);
+		em_clear_set_bit(priv, I2C_BIT_WTIM0, I2C_BIT_WREL0,
+				I2C_OFS_IICC0);
+
+		if (status & I2C_BIT_STD0) {
+			i2c_slave_event(priv->slave, I2C_SLAVE_WRITE_REQUESTED,
+					&value);
+		} else {
+			/* Recv data */
+			value = readb(priv->base + I2C_OFS_IIC0);
+			ret = i2c_slave_event(priv->slave,
+					I2C_SLAVE_WRITE_RECEIVED, &value);
+			if (ret < 0)
+				em_clear_set_bit(priv, I2C_BIT_ACKE0, 0,
+						I2C_OFS_IICC0);
+		}
+	}
+
+	return true;
+}
+
 static irqreturn_t em_i2c_irq_handler(int this_irq, void *dev_id)
 {
 	struct em_i2c_device *priv = dev_id;
 
+	if (em_i2c_slave_irq(priv))
+		return IRQ_HANDLED;
+
 	complete(&priv->msg_done);
+
 	return IRQ_HANDLED;
 }
 
 static u32 em_i2c_func(struct i2c_adapter *adap)
 {
-	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_SLAVE;
+}
+
+static int em_i2c_reg_slave(struct i2c_client *slave)
+{
+	struct em_i2c_device *priv = i2c_get_adapdata(slave->adapter);
+
+	if (priv->slave)
+		return -EBUSY;
+
+	if (slave->flags & I2C_CLIENT_TEN)
+		return -EAFNOSUPPORT;
+
+	priv->slave = slave;
+
+	/* Set slave address */
+	writeb(slave->addr << 1, priv->base + I2C_OFS_SVA0);
+
+	return 0;
+}
+
+static int em_i2c_unreg_slave(struct i2c_client *slave)
+{
+	struct em_i2c_device *priv = i2c_get_adapdata(slave->adapter);
+
+	WARN_ON(!priv->slave);
+
+	writeb(0, priv->base + I2C_OFS_SVA0);
+
+	priv->slave = NULL;
+
+	return 0;
 }
 
 static struct i2c_algorithm em_i2c_algo = {
 	.master_xfer = em_i2c_xfer,
 	.functionality = em_i2c_func,
+	.reg_slave      = em_i2c_reg_slave,
+	.unreg_slave    = em_i2c_unreg_slave,
 };
 
 static int em_i2c_probe(struct platform_device *pdev)
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index ab492301581a..b6c080334297 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -99,7 +99,7 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev)
 #endif
 
 /* Bus timings (in ns) for bit-banging */
-static struct i2c_timings {
+static struct ibm_iic_timings {
 	unsigned int hd_sta;
 	unsigned int su_sto;
 	unsigned int low;
@@ -241,7 +241,7 @@ static int iic_dc_wait(volatile struct iic_regs __iomem *iic, u8 mask)
 static int iic_smbus_quick(struct ibm_iic_private* dev, const struct i2c_msg* p)
 {
 	volatile struct iic_regs __iomem *iic = dev->vaddr;
-	const struct i2c_timings* t = &timings[dev->fast_mode ? 1 : 0];
+	const struct ibm_iic_timings *t = &timings[dev->fast_mode ? 1 : 0];
 	u8 mask, v, sda;
 	int i, res;
 
diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
index 3795fe130ef2..379ef9c31664 100644
--- a/drivers/i2c/busses/i2c-img-scb.c
+++ b/drivers/i2c/busses/i2c-img-scb.c
@@ -151,10 +151,11 @@
 #define INT_FIFO_EMPTYING		BIT(12)
 #define INT_TRANSACTION_DONE		BIT(15)
 #define INT_SLAVE_EVENT			BIT(16)
+#define INT_MASTER_HALTED		BIT(17)
 #define INT_TIMING			BIT(18)
+#define INT_STOP_DETECTED		BIT(19)
 
 #define INT_FIFO_FULL_FILLING	(INT_FIFO_FULL  | INT_FIFO_FILLING)
-#define INT_FIFO_EMPTY_EMPTYING	(INT_FIFO_EMPTY | INT_FIFO_EMPTYING)
 
 /* Level interrupts need clearing after handling instead of before */
 #define INT_LEVEL			0x01e00
@@ -177,7 +178,8 @@
 					 INT_FIFO_FULL        | \
 					 INT_FIFO_FILLING     | \
 					 INT_FIFO_EMPTY       | \
-					 INT_FIFO_EMPTYING)
+					 INT_MASTER_HALTED    | \
+					 INT_STOP_DETECTED)
 
 #define INT_ENABLE_MASK_WAITSTOP	(INT_SLAVE_EVENT      | \
 					 INT_ADDR_ACK_ERR     | \
@@ -511,7 +513,17 @@ static void img_i2c_soft_reset(struct img_i2c *i2c)
 		       SCB_CONTROL_CLK_ENABLE | SCB_CONTROL_SOFT_RESET);
 }
 
-/* enable or release transaction halt for control of repeated starts */
+/*
+ * Enable or release transaction halt for control of repeated starts.
+ * In version 3.3 of the IP when transaction halt is set, an interrupt
+ * will be generated after each byte of a transfer instead of after
+ * every transfer but before the stop bit.
+ * Due to this behaviour we have to be careful that every time we
+ * release the transaction halt we have to re-enable it straight away
+ * so that we only process a single byte, not doing so will result in
+ * all remaining bytes been processed and a stop bit being issued,
+ * which will prevent us having a repeated start.
+ */
 static void img_i2c_transaction_halt(struct img_i2c *i2c, bool t_halt)
 {
 	u32 val;
@@ -580,7 +592,6 @@ static void img_i2c_read(struct img_i2c *i2c)
 	img_i2c_writel(i2c, SCB_READ_ADDR_REG, i2c->msg.addr);
 	img_i2c_writel(i2c, SCB_READ_COUNT_REG, i2c->msg.len);
 
-	img_i2c_transaction_halt(i2c, false);
 	mod_timer(&i2c->check_timer, jiffies + msecs_to_jiffies(1));
 }
 
@@ -594,7 +605,6 @@ static void img_i2c_write(struct img_i2c *i2c)
 	img_i2c_writel(i2c, SCB_WRITE_ADDR_REG, i2c->msg.addr);
 	img_i2c_writel(i2c, SCB_WRITE_COUNT_REG, i2c->msg.len);
 
-	img_i2c_transaction_halt(i2c, false);
 	mod_timer(&i2c->check_timer, jiffies + msecs_to_jiffies(1));
 	img_i2c_write_fifo(i2c);
 
@@ -750,7 +760,9 @@ static unsigned int img_i2c_atomic(struct img_i2c *i2c,
 			next_cmd = CMD_RET_ACK;
 		break;
 	case CMD_RET_ACK:
-		if (i2c->line_status & LINESTAT_ACK_DET) {
+		if (i2c->line_status & LINESTAT_ACK_DET ||
+		    (i2c->line_status & LINESTAT_NACK_DET &&
+		    i2c->msg.flags & I2C_M_IGNORE_NAK)) {
 			if (i2c->msg.len == 0) {
 				next_cmd = CMD_GEN_STOP;
 			} else if (i2c->msg.flags & I2C_M_RD) {
@@ -858,34 +870,42 @@ static unsigned int img_i2c_auto(struct img_i2c *i2c,
 
 	/* Enable transaction halt on start bit */
 	if (!i2c->last_msg && line_status & LINESTAT_START_BIT_DET) {
-		img_i2c_transaction_halt(i2c, true);
+		img_i2c_transaction_halt(i2c, !i2c->last_msg);
 		/* we're no longer interested in the slave event */
 		i2c->int_enable &= ~INT_SLAVE_EVENT;
 	}
 
 	mod_timer(&i2c->check_timer, jiffies + msecs_to_jiffies(1));
 
+	if (int_status & INT_STOP_DETECTED) {
+		/* Drain remaining data in FIFO and complete transaction */
+		if (i2c->msg.flags & I2C_M_RD)
+			img_i2c_read_fifo(i2c);
+		return ISR_COMPLETE(0);
+	}
+
 	if (i2c->msg.flags & I2C_M_RD) {
-		if (int_status & INT_FIFO_FULL_FILLING) {
+		if (int_status & (INT_FIFO_FULL_FILLING | INT_MASTER_HALTED)) {
 			img_i2c_read_fifo(i2c);
 			if (i2c->msg.len == 0)
 				return ISR_WAITSTOP;
 		}
 	} else {
-		if (int_status & INT_FIFO_EMPTY_EMPTYING) {
-			/*
-			 * The write fifo empty indicates that we're in the
-			 * last byte so it's safe to start a new write
-			 * transaction without losing any bytes from the
-			 * previous one.
-			 * see 2.3.7 Repeated Start Transactions.
-			 */
+		if (int_status & (INT_FIFO_EMPTY | INT_MASTER_HALTED)) {
 			if ((int_status & INT_FIFO_EMPTY) &&
 			    i2c->msg.len == 0)
 				return ISR_WAITSTOP;
 			img_i2c_write_fifo(i2c);
 		}
 	}
+	if (int_status & INT_MASTER_HALTED) {
+		/*
+		 * Release and then enable transaction halt, to
+		 * allow only a single byte to proceed.
+		 */
+		img_i2c_transaction_halt(i2c, false);
+		img_i2c_transaction_halt(i2c, !i2c->last_msg);
+	}
 
 	return 0;
 }
@@ -1017,20 +1037,23 @@ static int img_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 		return -EIO;
 
 	for (i = 0; i < num; i++) {
-		if (likely(msgs[i].len))
-			continue;
 		/*
 		 * 0 byte reads are not possible because the slave could try
 		 * and pull the data line low, preventing a stop bit.
 		 */
-		if (unlikely(msgs[i].flags & I2C_M_RD))
+		if (!msgs[i].len && msgs[i].flags & I2C_M_RD)
 			return -EIO;
 		/*
 		 * 0 byte writes are possible and used for probing, but we
 		 * cannot do them in automatic mode, so use atomic mode
 		 * instead.
+		 *
+		 * Also, the I2C_M_IGNORE_NAK mode can only be implemented
+		 * in atomic mode.
 		 */
-		atomic = true;
+		if (!msgs[i].len ||
+		    (msgs[i].flags & I2C_M_IGNORE_NAK))
+			atomic = true;
 	}
 
 	ret = clk_prepare_enable(i2c->scb_clk);
@@ -1069,12 +1092,31 @@ static int img_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
 		img_i2c_writel(i2c, SCB_INT_CLEAR_REG, ~0);
 		img_i2c_writel(i2c, SCB_CLEAR_REG, ~0);
 
-		if (atomic)
+		if (atomic) {
 			img_i2c_atomic_start(i2c);
-		else if (msg->flags & I2C_M_RD)
-			img_i2c_read(i2c);
-		else
-			img_i2c_write(i2c);
+		} else {
+			/*
+			 * Enable transaction halt if not the last message in
+			 * the queue so that we can control repeated starts.
+			 */
+			img_i2c_transaction_halt(i2c, !i2c->last_msg);
+
+			if (msg->flags & I2C_M_RD)
+				img_i2c_read(i2c);
+			else
+				img_i2c_write(i2c);
+
+			/*
+			 * Release and then enable transaction halt, to
+			 * allow only a single byte to proceed.
+			 * This doesn't have an effect on the initial transfer
+			 * but will allow the following transfers to start
+			 * processing if the previous transfer was marked as
+			 * complete while the i2c block was halted.
+			 */
+			img_i2c_transaction_halt(i2c, false);
+			img_i2c_transaction_halt(i2c, !i2c->last_msg);
+		}
 		spin_unlock_irqrestore(&i2c->lock, flags);
 
 		time_left = wait_for_completion_timeout(&i2c->msg_complete,
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index d4d853680ae4..a2b132cef717 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -29,9 +29,6 @@
  *
  */
 
-/** Includes *******************************************************************
-*******************************************************************************/
-
 #include <linux/clk.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
@@ -53,12 +50,10 @@
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_data/i2c-imx.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 
-/** Defines ********************************************************************
-*******************************************************************************/
-
 /* This will be the driver name the kernel reports */
 #define DRIVER_NAME "imx-i2c"
 
@@ -120,8 +115,7 @@
 #define I2CR_IEN_OPCODE_0	0x0
 #define I2CR_IEN_OPCODE_1	I2CR_IEN
 
-/** Variables ******************************************************************
-*******************************************************************************/
+#define I2C_PM_TIMEOUT		10 /* ms */
 
 /*
  * sorted list of clock divider, register value pairs
@@ -346,7 +340,7 @@ fail_tx:
 	dma_release_channel(dma->chan_tx);
 fail_al:
 	devm_kfree(dev, dma);
-	dev_info(dev, "can't use DMA\n");
+	dev_info(dev, "can't use DMA, using PIO instead.\n");
 }
 
 static void i2c_imx_dma_callback(void *arg)
@@ -393,6 +387,7 @@ static int i2c_imx_dma_xfer(struct imx_i2c_struct *i2c_imx,
 	return 0;
 
 err_submit:
+	dmaengine_terminate_all(dma->chan_using);
 err_desc:
 	dma_unmap_single(chan_dev, dma->dma_buf,
 			dma->dma_len, dma->dma_data_dir);
@@ -416,9 +411,6 @@ static void i2c_imx_dma_free(struct imx_i2c_struct *i2c_imx)
 	dma->chan_using = NULL;
 }
 
-/** Functions for IMX I2C adapter driver ***************************************
-*******************************************************************************/
-
 static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
 {
 	unsigned long orig_jiffies = jiffies;
@@ -527,9 +519,6 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
 
 	i2c_imx_set_clk(i2c_imx);
 
-	result = clk_prepare_enable(i2c_imx->clk);
-	if (result)
-		return result;
 	imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR);
 	/* Enable I2C controller */
 	imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);
@@ -582,7 +571,6 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)
 	/* Disable I2C controller */
 	temp = i2c_imx->hwdata->i2cr_ien_opcode ^ I2CR_IEN,
 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);
-	clk_disable_unprepare(i2c_imx->clk);
 }
 
 static irqreturn_t i2c_imx_isr(int irq, void *dev_id)
@@ -901,6 +889,10 @@ static int i2c_imx_xfer(struct i2c_adapter *adapter,
 
 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
 
+	result = pm_runtime_get_sync(i2c_imx->adapter.dev.parent);
+	if (result < 0)
+		goto out;
+
 	/* Start I2C transfer */
 	result = i2c_imx_start(i2c_imx);
 	if (result) {
@@ -964,6 +956,10 @@ fail0:
 	/* Stop I2C transfer */
 	i2c_imx_stop(i2c_imx);
 
+	pm_runtime_mark_last_busy(i2c_imx->adapter.dev.parent);
+	pm_runtime_put_autosuspend(i2c_imx->adapter.dev.parent);
+
+out:
 	dev_dbg(&i2c_imx->adapter.dev, "<%s> exit with: %s: %d\n", __func__,
 		(result < 0) ? "error" : "success msg",
 			(result < 0) ? result : num);
@@ -997,10 +993,8 @@ static void i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,
 			PINCTRL_STATE_DEFAULT);
 	i2c_imx->pinctrl_pins_gpio = pinctrl_lookup_state(i2c_imx->pinctrl,
 			"gpio");
-	rinfo->sda_gpio = of_get_named_gpio_flags(pdev->dev.of_node,
-			"sda-gpios", 0, NULL);
-	rinfo->scl_gpio = of_get_named_gpio_flags(pdev->dev.of_node,
-			"scl-gpios", 0, NULL);
+	rinfo->sda_gpio = of_get_named_gpio(pdev->dev.of_node, "sda-gpios", 0);
+	rinfo->scl_gpio = of_get_named_gpio(pdev->dev.of_node, "scl-gpios", 0);
 
 	if (!gpio_is_valid(rinfo->sda_gpio) ||
 	    !gpio_is_valid(rinfo->scl_gpio) ||
@@ -1083,7 +1077,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(i2c_imx->clk);
 	if (ret) {
-		dev_err(&pdev->dev, "can't enable I2C clock\n");
+		dev_err(&pdev->dev, "can't enable I2C clock, ret=%d\n", ret);
 		return ret;
 	}
 
@@ -1107,6 +1101,18 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	/* Set up adapter data */
 	i2c_set_adapdata(&i2c_imx->adapter, i2c_imx);
 
+	/* Set up platform driver data */
+	platform_set_drvdata(pdev, i2c_imx);
+
+	pm_runtime_set_autosuspend_delay(&pdev->dev, I2C_PM_TIMEOUT);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	ret = pm_runtime_get_sync(&pdev->dev);
+	if (ret < 0)
+		goto rpm_disable;
+
 	/* Set up clock divider */
 	i2c_imx->bitrate = IMX_I2C_BIT_RATE;
 	ret = of_property_read_u32(pdev->dev.of_node,
@@ -1125,12 +1131,11 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	ret = i2c_add_numbered_adapter(&i2c_imx->adapter);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "registration failed\n");
-		goto clk_disable;
+		goto rpm_disable;
 	}
 
-	/* Set up platform driver data */
-	platform_set_drvdata(pdev, i2c_imx);
-	clk_disable_unprepare(i2c_imx->clk);
+	pm_runtime_mark_last_busy(&pdev->dev);
+	pm_runtime_put_autosuspend(&pdev->dev);
 
 	dev_dbg(&i2c_imx->adapter.dev, "claimed irq %d\n", irq);
 	dev_dbg(&i2c_imx->adapter.dev, "device resources: %pR\n", res);
@@ -1143,6 +1148,12 @@ static int i2c_imx_probe(struct platform_device *pdev)
 
 	return 0;   /* Return OK */
 
+rpm_disable:
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+
 clk_disable:
 	clk_disable_unprepare(i2c_imx->clk);
 	return ret;
@@ -1151,6 +1162,11 @@ clk_disable:
 static int i2c_imx_remove(struct platform_device *pdev)
 {
 	struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = pm_runtime_get_sync(&pdev->dev);
+	if (ret < 0)
+		return ret;
 
 	/* remove adapter */
 	dev_dbg(&i2c_imx->adapter.dev, "adapter removed\n");
@@ -1165,17 +1181,54 @@ static int i2c_imx_remove(struct platform_device *pdev)
 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_I2CR);
 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_I2SR);
 
+	clk_disable_unprepare(i2c_imx->clk);
+
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int i2c_imx_runtime_suspend(struct device *dev)
+{
+	struct imx_i2c_struct *i2c_imx  = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(i2c_imx->clk);
+
 	return 0;
 }
 
+static int i2c_imx_runtime_resume(struct device *dev)
+{
+	struct imx_i2c_struct *i2c_imx  = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(i2c_imx->clk);
+	if (ret)
+		dev_err(dev, "can't enable I2C clock, ret=%d\n", ret);
+
+	return ret;
+}
+
+static const struct dev_pm_ops i2c_imx_pm_ops = {
+	SET_RUNTIME_PM_OPS(i2c_imx_runtime_suspend,
+			   i2c_imx_runtime_resume, NULL)
+};
+#define I2C_IMX_PM_OPS (&i2c_imx_pm_ops)
+#else
+#define I2C_IMX_PM_OPS NULL
+#endif /* CONFIG_PM */
+
 static struct platform_driver i2c_imx_driver = {
 	.probe = i2c_imx_probe,
 	.remove = i2c_imx_remove,
-	.driver	= {
-		.name	= DRIVER_NAME,
+	.driver = {
+		.name = DRIVER_NAME,
+		.pm = I2C_IMX_PM_OPS,
 		.of_match_table = i2c_imx_dt_ids,
 	},
-	.id_table	= imx_i2c_devtype,
+	.id_table = imx_i2c_devtype,
 };
 
 static int __init i2c_adap_imx_init(void)
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 9b867169142f..aec8e6ce38a4 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -132,6 +132,7 @@ struct mtk_i2c_compatible {
 	unsigned char pmic_i2c: 1;
 	unsigned char dcm: 1;
 	unsigned char auto_restart: 1;
+	unsigned char aux_len_reg: 1;
 };
 
 struct mtk_i2c {
@@ -153,6 +154,8 @@ struct mtk_i2c {
 	enum mtk_trans_op op;
 	u16 timing_reg;
 	u16 high_speed_reg;
+	unsigned char auto_restart;
+	bool ignore_restart_irq;
 	const struct mtk_i2c_compatible *dev_comp;
 };
 
@@ -178,6 +181,7 @@ static const struct mtk_i2c_compatible mt6577_compat = {
 	.pmic_i2c = 0,
 	.dcm = 1,
 	.auto_restart = 0,
+	.aux_len_reg = 0,
 };
 
 static const struct mtk_i2c_compatible mt6589_compat = {
@@ -185,6 +189,7 @@ static const struct mtk_i2c_compatible mt6589_compat = {
 	.pmic_i2c = 1,
 	.dcm = 0,
 	.auto_restart = 0,
+	.aux_len_reg = 0,
 };
 
 static const struct mtk_i2c_compatible mt8173_compat = {
@@ -192,6 +197,7 @@ static const struct mtk_i2c_compatible mt8173_compat = {
 	.pmic_i2c = 0,
 	.dcm = 1,
 	.auto_restart = 1,
+	.aux_len_reg = 1,
 };
 
 static const struct of_device_id mtk_i2c_of_match[] = {
@@ -373,7 +379,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
 
 	i2c->irq_stat = 0;
 
-	if (i2c->dev_comp->auto_restart)
+	if (i2c->auto_restart)
 		restart_flag = I2C_RS_TRANSFER;
 
 	reinit_completion(&i2c->msg_complete);
@@ -411,8 +417,14 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
 
 	/* Set transfer and transaction len */
 	if (i2c->op == I2C_MASTER_WRRD) {
-		writew(msgs->len | ((msgs + 1)->len) << 8,
-		       i2c->base + OFFSET_TRANSFER_LEN);
+		if (i2c->dev_comp->aux_len_reg) {
+			writew(msgs->len, i2c->base + OFFSET_TRANSFER_LEN);
+			writew((msgs + 1)->len, i2c->base +
+			       OFFSET_TRANSFER_LEN_AUX);
+		} else {
+			writew(msgs->len | ((msgs + 1)->len) << 8,
+			       i2c->base + OFFSET_TRANSFER_LEN);
+		}
 		writew(I2C_WRRD_TRANAC_VALUE, i2c->base + OFFSET_TRANSAC_LEN);
 	} else {
 		writew(msgs->len, i2c->base + OFFSET_TRANSFER_LEN);
@@ -461,7 +473,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
 
 	writel(I2C_DMA_START_EN, i2c->pdmabase + OFFSET_EN);
 
-	if (!i2c->dev_comp->auto_restart) {
+	if (!i2c->auto_restart) {
 		start_reg = I2C_TRANSAC_START;
 	} else {
 		start_reg = I2C_TRANSAC_START | I2C_RS_MUL_TRIG;
@@ -518,6 +530,24 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 	if (ret)
 		return ret;
 
+	i2c->auto_restart = i2c->dev_comp->auto_restart;
+
+	/* checking if we can skip restart and optimize using WRRD mode */
+	if (i2c->auto_restart && num == 2) {
+		if (!(msgs[0].flags & I2C_M_RD) && (msgs[1].flags & I2C_M_RD) &&
+		    msgs[0].addr == msgs[1].addr) {
+			i2c->auto_restart = 0;
+		}
+	}
+
+	if (i2c->auto_restart && num >= 2 && i2c->speed_hz > MAX_FS_MODE_SPEED)
+		/* ignore the first restart irq after the master code,
+		 * otherwise the first transfer will be discarded.
+		 */
+		i2c->ignore_restart_irq = true;
+	else
+		i2c->ignore_restart_irq = false;
+
 	while (left_num--) {
 		if (!msgs->buf) {
 			dev_dbg(i2c->dev, "data buffer is NULL.\n");
@@ -530,7 +560,7 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 		else
 			i2c->op = I2C_MASTER_WR;
 
-		if (!i2c->dev_comp->auto_restart) {
+		if (!i2c->auto_restart) {
 			if (num > 1) {
 				/* combined two messages into one transaction */
 				i2c->op = I2C_MASTER_WRRD;
@@ -559,7 +589,7 @@ static irqreturn_t mtk_i2c_irq(int irqno, void *dev_id)
 	u16 restart_flag = 0;
 	u16 intr_stat;
 
-	if (i2c->dev_comp->auto_restart)
+	if (i2c->auto_restart)
 		restart_flag = I2C_RS_TRANSFER;
 
 	intr_stat = readw(i2c->base + OFFSET_INTR_STAT);
@@ -571,8 +601,16 @@ static irqreturn_t mtk_i2c_irq(int irqno, void *dev_id)
 	 * i2c->irq_stat need keep the two interrupt value.
 	 */
 	i2c->irq_stat |= intr_stat;
-	if (i2c->irq_stat & (I2C_TRANSAC_COMP | restart_flag))
-		complete(&i2c->msg_complete);
+
+	if (i2c->ignore_restart_irq && (i2c->irq_stat & restart_flag)) {
+		i2c->ignore_restart_irq = false;
+		i2c->irq_stat = 0;
+		writew(I2C_RS_MUL_CNFG | I2C_RS_MUL_TRIG | I2C_TRANSAC_START,
+		       i2c->base + OFFSET_START);
+	} else {
+		if (i2c->irq_stat & (I2C_TRANSAC_COMP | restart_flag))
+			complete(&i2c->msg_complete);
+	}
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 630bce68bf38..e04598595073 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -23,6 +23,9 @@
 
    Note: we assume there can only be one device, with one or more
    SMBus interfaces.
+   The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS).
+   For devices supporting multiple ports the i2c_adapter should provide
+   an i2c_algorithm to access them.
 */
 
 #include <linux/module.h>
@@ -37,6 +40,7 @@
 #include <linux/dmi.h>
 #include <linux/acpi.h>
 #include <linux/io.h>
+#include <linux/mutex.h>
 
 
 /* PIIX4 SMBus address offsets */
@@ -75,6 +79,16 @@
 #define PIIX4_WORD_DATA		0x0C
 #define PIIX4_BLOCK_DATA	0x14
 
+/* Multi-port constants */
+#define PIIX4_MAX_ADAPTERS 4
+
+/* SB800 constants */
+#define SB800_PIIX4_SMB_IDX		0xcd6
+
+/* SB800 port is selected by bits 2:1 of the smb_en register (0x2c) */
+#define SB800_PIIX4_PORT_IDX		0x2c
+#define SB800_PIIX4_PORT_IDX_MASK	0x06
+
 /* insmod parameters */
 
 /* If force is set to anything different from 0, we forcibly enable the
@@ -122,8 +136,19 @@ static const struct dmi_system_id piix4_dmi_ibm[] = {
 	{ },
 };
 
+/* SB800 globals */
+static const char *piix4_main_port_names_sb800[PIIX4_MAX_ADAPTERS] = {
+	"SDA0", "SDA2", "SDA3", "SDA4"
+};
+static const char *piix4_aux_port_name_sb800 = "SDA1";
+
 struct i2c_piix4_adapdata {
 	unsigned short smba;
+
+	/* SB800 */
+	bool sb800_main;
+	unsigned short port;
+	struct mutex *mutex;
 };
 
 static int piix4_setup(struct pci_dev *PIIX4_dev,
@@ -229,7 +254,6 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 			     const struct pci_device_id *id, u8 aux)
 {
 	unsigned short piix4_smba;
-	unsigned short smba_idx = 0xcd6;
 	u8 smba_en_lo, smba_en_hi, smb_en, smb_en_status;
 	u8 i2ccfg, i2ccfg_offset = 0x10;
 
@@ -251,16 +275,10 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 	else
 		smb_en = (aux) ? 0x28 : 0x2c;
 
-	if (!request_region(smba_idx, 2, "smba_idx")) {
-		dev_err(&PIIX4_dev->dev, "SMBus base address index region "
-			"0x%x already in use!\n", smba_idx);
-		return -EBUSY;
-	}
-	outb_p(smb_en, smba_idx);
-	smba_en_lo = inb_p(smba_idx + 1);
-	outb_p(smb_en + 1, smba_idx);
-	smba_en_hi = inb_p(smba_idx + 1);
-	release_region(smba_idx, 2);
+	outb_p(smb_en, SB800_PIIX4_SMB_IDX);
+	smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1);
+	outb_p(smb_en + 1, SB800_PIIX4_SMB_IDX);
+	smba_en_hi = inb_p(SB800_PIIX4_SMB_IDX + 1);
 
 	if (!smb_en) {
 		smb_en_status = smba_en_lo & 0x10;
@@ -483,7 +501,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 			if (len == 0 || len > I2C_SMBUS_BLOCK_MAX)
 				return -EINVAL;
 			outb_p(len, SMBHSTDAT0);
-			i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
+			inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 			for (i = 1; i <= len; i++)
 				outb_p(data->block[i], SMBBLKDAT);
 		}
@@ -516,7 +534,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 		data->block[0] = inb_p(SMBHSTDAT0);
 		if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
 			return -EPROTO;
-		i = inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
+		inb_p(SMBHSTCNT);	/* Reset SMBBLKDAT */
 		for (i = 1; i <= data->block[0]; i++)
 			data->block[i] = inb_p(SMBBLKDAT);
 		break;
@@ -524,6 +542,43 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 	return 0;
 }
 
+/*
+ * Handles access to multiple SMBus ports on the SB800.
+ * The port is selected by bits 2:1 of the smb_en register (0x2c).
+ * Returns negative errno on error.
+ *
+ * Note: The selected port must be returned to the initial selection to avoid
+ * problems on certain systems.
+ */
+static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr,
+		 unsigned short flags, char read_write,
+		 u8 command, int size, union i2c_smbus_data *data)
+{
+	struct i2c_piix4_adapdata *adapdata = i2c_get_adapdata(adap);
+	u8 smba_en_lo;
+	u8 port;
+	int retval;
+
+	mutex_lock(adapdata->mutex);
+
+	outb_p(SB800_PIIX4_PORT_IDX, SB800_PIIX4_SMB_IDX);
+	smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1);
+
+	port = adapdata->port;
+	if ((smba_en_lo & SB800_PIIX4_PORT_IDX_MASK) != (port << 1))
+		outb_p((smba_en_lo & ~SB800_PIIX4_PORT_IDX_MASK) | (port << 1),
+		       SB800_PIIX4_SMB_IDX + 1);
+
+	retval = piix4_access(adap, addr, flags, read_write,
+			      command, size, data);
+
+	outb_p(smba_en_lo, SB800_PIIX4_SMB_IDX + 1);
+
+	mutex_unlock(adapdata->mutex);
+
+	return retval;
+}
+
 static u32 piix4_func(struct i2c_adapter *adapter)
 {
 	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
@@ -536,6 +591,11 @@ static const struct i2c_algorithm smbus_algorithm = {
 	.functionality	= piix4_func,
 };
 
+static const struct i2c_algorithm piix4_smbus_algorithm_sb800 = {
+	.smbus_xfer	= piix4_access_sb800,
+	.functionality	= piix4_func,
+};
+
 static const struct pci_device_id piix4_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3) },
@@ -561,11 +621,11 @@ static const struct pci_device_id piix4_ids[] = {
 
 MODULE_DEVICE_TABLE (pci, piix4_ids);
 
-static struct i2c_adapter *piix4_main_adapter;
+static struct i2c_adapter *piix4_main_adapters[PIIX4_MAX_ADAPTERS];
 static struct i2c_adapter *piix4_aux_adapter;
 
 static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
-			     struct i2c_adapter **padap)
+			     const char *name, struct i2c_adapter **padap)
 {
 	struct i2c_adapter *adap;
 	struct i2c_piix4_adapdata *adapdata;
@@ -594,7 +654,7 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
 	adap->dev.parent = &dev->dev;
 
 	snprintf(adap->name, sizeof(adap->name),
-		"SMBus PIIX4 adapter at %04x", smba);
+		"SMBus PIIX4 adapter %s at %04x", name, smba);
 
 	i2c_set_adapdata(adap, adapdata);
 
@@ -611,6 +671,54 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
 	return 0;
 }
 
+static int piix4_add_adapters_sb800(struct pci_dev *dev, unsigned short smba)
+{
+	struct mutex *mutex;
+	struct i2c_piix4_adapdata *adapdata;
+	int port;
+	int retval;
+
+	mutex = kzalloc(sizeof(*mutex), GFP_KERNEL);
+	if (mutex == NULL)
+		return -ENOMEM;
+
+	mutex_init(mutex);
+
+	for (port = 0; port < PIIX4_MAX_ADAPTERS; port++) {
+		retval = piix4_add_adapter(dev, smba,
+					   piix4_main_port_names_sb800[port],
+					   &piix4_main_adapters[port]);
+		if (retval < 0)
+			goto error;
+
+		piix4_main_adapters[port]->algo = &piix4_smbus_algorithm_sb800;
+
+		adapdata = i2c_get_adapdata(piix4_main_adapters[port]);
+		adapdata->sb800_main = true;
+		adapdata->port = port;
+		adapdata->mutex = mutex;
+	}
+
+	return retval;
+
+error:
+	dev_err(&dev->dev,
+		"Error setting up SB800 adapters. Unregistering!\n");
+	while (--port >= 0) {
+		adapdata = i2c_get_adapdata(piix4_main_adapters[port]);
+		if (adapdata->smba) {
+			i2c_del_adapter(piix4_main_adapters[port]);
+			kfree(adapdata);
+			kfree(piix4_main_adapters[port]);
+			piix4_main_adapters[port] = NULL;
+		}
+	}
+
+	kfree(mutex);
+
+	return retval;
+}
+
 static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	int retval;
@@ -618,20 +726,41 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if ((dev->vendor == PCI_VENDOR_ID_ATI &&
 	     dev->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
 	     dev->revision >= 0x40) ||
-	    dev->vendor == PCI_VENDOR_ID_AMD)
+	    dev->vendor == PCI_VENDOR_ID_AMD) {
+		if (!request_region(SB800_PIIX4_SMB_IDX, 2, "smba_idx")) {
+			dev_err(&dev->dev,
+			"SMBus base address index region 0x%x already in use!\n",
+			SB800_PIIX4_SMB_IDX);
+			return -EBUSY;
+		}
+
 		/* base address location etc changed in SB800 */
 		retval = piix4_setup_sb800(dev, id, 0);
-	else
-		retval = piix4_setup(dev, id);
+		if (retval < 0) {
+			release_region(SB800_PIIX4_SMB_IDX, 2);
+			return retval;
+		}
 
-	/* If no main SMBus found, give up */
-	if (retval < 0)
-		return retval;
+		/*
+		 * Try to register multiplexed main SMBus adapter,
+		 * give up if we can't
+		 */
+		retval = piix4_add_adapters_sb800(dev, retval);
+		if (retval < 0) {
+			release_region(SB800_PIIX4_SMB_IDX, 2);
+			return retval;
+		}
+	} else {
+		retval = piix4_setup(dev, id);
+		if (retval < 0)
+			return retval;
 
-	/* Try to register main SMBus adapter, give up if we can't */
-	retval = piix4_add_adapter(dev, retval, &piix4_main_adapter);
-	if (retval < 0)
-		return retval;
+		/* Try to register main SMBus adapter, give up if we can't */
+		retval = piix4_add_adapter(dev, retval, "main",
+					   &piix4_main_adapters[0]);
+		if (retval < 0)
+			return retval;
+	}
 
 	/* Check for auxiliary SMBus on some AMD chipsets */
 	retval = -ENODEV;
@@ -654,7 +783,8 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (retval > 0) {
 		/* Try to add the aux adapter if it exists,
 		 * piix4_add_adapter will clean up if this fails */
-		piix4_add_adapter(dev, retval, &piix4_aux_adapter);
+		piix4_add_adapter(dev, retval, piix4_aux_port_name_sb800,
+				  &piix4_aux_adapter);
 	}
 
 	return 0;
@@ -666,7 +796,13 @@ static void piix4_adap_remove(struct i2c_adapter *adap)
 
 	if (adapdata->smba) {
 		i2c_del_adapter(adap);
-		release_region(adapdata->smba, SMBIOSIZE);
+		if (adapdata->port == 0) {
+			release_region(adapdata->smba, SMBIOSIZE);
+			if (adapdata->sb800_main) {
+				kfree(adapdata->mutex);
+				release_region(SB800_PIIX4_SMB_IDX, 2);
+			}
+		}
 		kfree(adapdata);
 		kfree(adap);
 	}
@@ -674,9 +810,13 @@ static void piix4_adap_remove(struct i2c_adapter *adap)
 
 static void piix4_remove(struct pci_dev *dev)
 {
-	if (piix4_main_adapter) {
-		piix4_adap_remove(piix4_main_adapter);
-		piix4_main_adapter = NULL;
+	int port = PIIX4_MAX_ADAPTERS;
+
+	while (--port >= 0) {
+		if (piix4_main_adapters[port]) {
+			piix4_adap_remove(piix4_main_adapters[port]);
+			piix4_main_adapters[port] = NULL;
+		}
 	}
 
 	if (piix4_aux_adapter) {
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 599c0d7bd906..1abeadc8ab79 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -1,7 +1,8 @@
 /*
  * Driver for the Renesas RCar I2C unit
  *
- * Copyright (C) 2014 Wolfram Sang <wsa@sang-engineering.com>
+ * Copyright (C) 2014-15 Wolfram Sang <wsa@sang-engineering.com>
+ * Copyright (C) 2011-2015 Renesas Electronics Corporation
  *
  * Copyright (C) 2012-14 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
@@ -9,9 +10,6 @@
  * This file is based on the drivers/i2c/busses/i2c-sh7760.c
  * (c) 2005-2008 MSC Vertriebsges.m.b.H, Manuel Lauss <mlau@msc-ge.com>
  *
- * This file used out-of-tree driver i2c-rcar.c
- * Copyright (C) 2011-2012 Renesas Electronics Corporation
- *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
@@ -33,7 +31,6 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
-#include <linux/spinlock.h>
 
 /* register offsets */
 #define ICSCR	0x00	/* slave ctrl */
@@ -84,6 +81,7 @@
 
 #define RCAR_BUS_PHASE_START	(MDBS | MIE | ESG)
 #define RCAR_BUS_PHASE_DATA	(MDBS | MIE)
+#define RCAR_BUS_MASK_DATA	(~(ESG | FSB) & 0xFF)
 #define RCAR_BUS_PHASE_STOP	(MDBS | MIE | FSB)
 
 #define RCAR_IRQ_SEND	(MNR | MAL | MST | MAT | MDE)
@@ -94,10 +92,13 @@
 #define RCAR_IRQ_ACK_RECV	(~(MAT | MDR) & 0xFF)
 
 #define ID_LAST_MSG	(1 << 0)
-#define ID_IOERROR	(1 << 1)
+#define ID_FIRST_MSG	(1 << 1)
 #define ID_DONE		(1 << 2)
 #define ID_ARBLOST	(1 << 3)
 #define ID_NACK		(1 << 4)
+/* persistent flags */
+#define ID_P_PM_BLOCKED	(1 << 31)
+#define ID_P_MASK	ID_P_PM_BLOCKED
 
 enum rcar_i2c_type {
 	I2C_RCAR_GEN1,
@@ -108,10 +109,10 @@ enum rcar_i2c_type {
 struct rcar_i2c_priv {
 	void __iomem *io;
 	struct i2c_adapter adap;
-	struct i2c_msg	*msg;
+	struct i2c_msg *msg;
+	int msgs_left;
 	struct clk *clk;
 
-	spinlock_t lock;
 	wait_queue_head_t wait;
 
 	int pos;
@@ -124,9 +125,6 @@ struct rcar_i2c_priv {
 #define rcar_i2c_priv_to_dev(p)		((p)->adap.dev.parent)
 #define rcar_i2c_is_recv(p)		((p)->msg->flags & I2C_M_RD)
 
-#define rcar_i2c_flags_set(p, f)	((p)->flags |= (f))
-#define rcar_i2c_flags_has(p, f)	((p)->flags & (f))
-
 #define LOOP_TIMEOUT	1024
 
 
@@ -144,9 +142,10 @@ static void rcar_i2c_init(struct rcar_i2c_priv *priv)
 {
 	/* reset master mode */
 	rcar_i2c_write(priv, ICMIER, 0);
-	rcar_i2c_write(priv, ICMCR, 0);
+	rcar_i2c_write(priv, ICMCR, MDBS);
 	rcar_i2c_write(priv, ICMSR, 0);
-	rcar_i2c_write(priv, ICMAR, 0);
+	/* start clock */
+	rcar_i2c_write(priv, ICCCR, priv->icccr);
 }
 
 static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv)
@@ -163,15 +162,17 @@ static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv)
 	return -EBUSY;
 }
 
-static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
-				    u32 bus_speed,
-				    struct device *dev)
+static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv, struct i2c_timings *t)
 {
-	u32 scgd, cdf;
-	u32 round, ick;
-	u32 scl;
-	u32 cdf_width;
+	u32 scgd, cdf, round, ick, sum, scl, cdf_width;
 	unsigned long rate;
+	struct device *dev = rcar_i2c_priv_to_dev(priv);
+
+	/* Fall back to previously used values if not supplied */
+	t->bus_freq_hz = t->bus_freq_hz ?: 100000;
+	t->scl_fall_ns = t->scl_fall_ns ?: 35;
+	t->scl_rise_ns = t->scl_rise_ns ?: 200;
+	t->scl_int_delay_ns = t->scl_int_delay_ns ?: 50;
 
 	switch (priv->devtype) {
 	case I2C_RCAR_GEN1:
@@ -195,9 +196,9 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	 * SCL	= ick / (20 + SCGD * 8 + F[(ticf + tr + intd) * ick])
 	 *
 	 * ick  : I2C internal clock < 20 MHz
-	 * ticf : I2C SCL falling time  =  35 ns here
-	 * tr   : I2C SCL rising  time  = 200 ns here
-	 * intd : LSI internal delay    =  50 ns here
+	 * ticf : I2C SCL falling time
+	 * tr   : I2C SCL rising  time
+	 * intd : LSI internal delay
 	 * clkp : peripheral_clk
 	 * F[]  : integer up-valuation
 	 */
@@ -213,12 +214,12 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	 * it is impossible to calculate large scale
 	 * number on u32. separate it
 	 *
-	 * F[(ticf + tr + intd) * ick]
-	 *  = F[(35 + 200 + 50)ns * ick]
-	 *  = F[285 * ick / 1000000000]
-	 *  = F[(ick / 1000000) * 285 / 1000]
+	 * F[(ticf + tr + intd) * ick] with sum = (ticf + tr + intd)
+	 *  = F[sum * ick / 1000000000]
+	 *  = F[(ick / 1000000) * sum / 1000]
 	 */
-	round = (ick + 500000) / 1000000 * 285;
+	sum = t->scl_fall_ns + t->scl_rise_ns + t->scl_int_delay_ns;
+	round = (ick + 500000) / 1000000 * sum;
 	round = (round + 500) / 1000;
 
 	/*
@@ -235,7 +236,7 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	 */
 	for (scgd = 0; scgd < 0x40; scgd++) {
 		scl = ick / (20 + (scgd * 8) + round);
-		if (scl <= bus_speed)
+		if (scl <= t->bus_freq_hz)
 			goto scgd_find;
 	}
 	dev_err(dev, "it is impossible to calculate best SCL\n");
@@ -243,11 +244,9 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 
 scgd_find:
 	dev_dbg(dev, "clk %d/%d(%lu), round %u, CDF:0x%x, SCGD: 0x%x\n",
-		scl, bus_speed, clk_get_rate(priv->clk), round, cdf, scgd);
+		scl, t->bus_freq_hz, clk_get_rate(priv->clk), round, cdf, scgd);
 
-	/*
-	 * keep icccr value
-	 */
+	/* keep icccr value */
 	priv->icccr = scgd << cdf_width | cdf;
 
 	return 0;
@@ -257,33 +256,44 @@ static void rcar_i2c_prepare_msg(struct rcar_i2c_priv *priv)
 {
 	int read = !!rcar_i2c_is_recv(priv);
 
+	priv->pos = 0;
+	if (priv->msgs_left == 1)
+		priv->flags |= ID_LAST_MSG;
+
 	rcar_i2c_write(priv, ICMAR, (priv->msg->addr << 1) | read);
-	rcar_i2c_write(priv, ICMSR, 0);
-	rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_START);
+	/*
+	 * We don't have a testcase but the HW engineers say that the write order
+	 * of ICMSR and ICMCR depends on whether we issue START or REP_START. Since
+	 * it didn't cause a drawback for me, let's rather be safe than sorry.
+	 */
+	if (priv->flags & ID_FIRST_MSG) {
+		rcar_i2c_write(priv, ICMSR, 0);
+		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_START);
+	} else {
+		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_START);
+		rcar_i2c_write(priv, ICMSR, 0);
+	}
 	rcar_i2c_write(priv, ICMIER, read ? RCAR_IRQ_RECV : RCAR_IRQ_SEND);
 }
 
+static void rcar_i2c_next_msg(struct rcar_i2c_priv *priv)
+{
+	priv->msg++;
+	priv->msgs_left--;
+	priv->flags &= ID_P_MASK;
+	rcar_i2c_prepare_msg(priv);
+}
+
 /*
  *		interrupt functions
  */
-static int rcar_i2c_irq_send(struct rcar_i2c_priv *priv, u32 msr)
+static void rcar_i2c_irq_send(struct rcar_i2c_priv *priv, u32 msr)
 {
 	struct i2c_msg *msg = priv->msg;
 
-	/*
-	 * FIXME
-	 * sometimes, unknown interrupt happened.
-	 * Do nothing
-	 */
+	/* FIXME: sometimes, unknown interrupt happened. Do nothing */
 	if (!(msr & MDE))
-		return 0;
-
-	/*
-	 * If address transfer phase finished,
-	 * goto data phase.
-	 */
-	if (msr & MAT)
-		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_DATA);
+		return;
 
 	if (priv->pos < msg->len) {
 		/*
@@ -305,67 +315,50 @@ static int rcar_i2c_irq_send(struct rcar_i2c_priv *priv, u32 msr)
 		 * [ICRXTX] -> [SHIFT] -> [I2C bus]
 		 */
 
-		if (priv->flags & ID_LAST_MSG)
+		if (priv->flags & ID_LAST_MSG) {
 			/*
 			 * If current msg is the _LAST_ msg,
 			 * prepare stop condition here.
 			 * ID_DONE will be set on STOP irq.
 			 */
 			rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_STOP);
-		else
-			/*
-			 * If current msg is _NOT_ last msg,
-			 * it doesn't call stop phase.
-			 * thus, there is no STOP irq.
-			 * return ID_DONE here.
-			 */
-			return ID_DONE;
+		} else {
+			rcar_i2c_next_msg(priv);
+			return;
+		}
 	}
 
 	rcar_i2c_write(priv, ICMSR, RCAR_IRQ_ACK_SEND);
-
-	return 0;
 }
 
-static int rcar_i2c_irq_recv(struct rcar_i2c_priv *priv, u32 msr)
+static void rcar_i2c_irq_recv(struct rcar_i2c_priv *priv, u32 msr)
 {
 	struct i2c_msg *msg = priv->msg;
 
-	/*
-	 * FIXME
-	 * sometimes, unknown interrupt happened.
-	 * Do nothing
-	 */
+	/* FIXME: sometimes, unknown interrupt happened. Do nothing */
 	if (!(msr & MDR))
-		return 0;
+		return;
 
 	if (msr & MAT) {
-		/*
-		 * Address transfer phase finished,
-		 * but, there is no data at this point.
-		 * Do nothing.
-		 */
+		/* Address transfer phase finished, but no data at this point. */
 	} else if (priv->pos < msg->len) {
-		/*
-		 * get received data
-		 */
+		/* get received data */
 		msg->buf[priv->pos] = rcar_i2c_read(priv, ICRXTX);
 		priv->pos++;
 	}
 
 	/*
-	 * If next received data is the _LAST_,
-	 * go to STOP phase,
-	 * otherwise, go to DATA phase.
+	 * If next received data is the _LAST_, go to STOP phase. Might be
+	 * overwritten by REP START when setting up a new msg. Not elegant
+	 * but the only stable sequence for REP START I have found so far.
 	 */
 	if (priv->pos + 1 >= msg->len)
 		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_STOP);
-	else
-		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_DATA);
-
-	rcar_i2c_write(priv, ICMSR, RCAR_IRQ_ACK_RECV);
 
-	return 0;
+	if (priv->pos == msg->len && !(priv->flags & ID_LAST_MSG))
+		rcar_i2c_next_msg(priv);
+	else
+		rcar_i2c_write(priv, ICMSR, RCAR_IRQ_ACK_RECV);
 }
 
 static bool rcar_i2c_slave_irq(struct rcar_i2c_priv *priv)
@@ -426,62 +419,57 @@ static bool rcar_i2c_slave_irq(struct rcar_i2c_priv *priv)
 static irqreturn_t rcar_i2c_irq(int irq, void *ptr)
 {
 	struct rcar_i2c_priv *priv = ptr;
-	irqreturn_t result = IRQ_HANDLED;
-	u32 msr;
-
-	/*-------------- spin lock -----------------*/
-	spin_lock(&priv->lock);
+	u32 msr, val;
 
-	if (rcar_i2c_slave_irq(priv))
-		goto exit;
+	/* Clear START or STOP as soon as we can */
+	val = rcar_i2c_read(priv, ICMCR);
+	rcar_i2c_write(priv, ICMCR, val & RCAR_BUS_MASK_DATA);
 
 	msr = rcar_i2c_read(priv, ICMSR);
 
 	/* Only handle interrupts that are currently enabled */
 	msr &= rcar_i2c_read(priv, ICMIER);
 	if (!msr) {
-		result = IRQ_NONE;
-		goto exit;
+		if (rcar_i2c_slave_irq(priv))
+			return IRQ_HANDLED;
+
+		return IRQ_NONE;
 	}
 
 	/* Arbitration lost */
 	if (msr & MAL) {
-		rcar_i2c_flags_set(priv, (ID_DONE | ID_ARBLOST));
+		priv->flags |= ID_DONE | ID_ARBLOST;
 		goto out;
 	}
 
 	/* Nack */
 	if (msr & MNR) {
-		/* go to stop phase */
-		rcar_i2c_write(priv, ICMCR, RCAR_BUS_PHASE_STOP);
+		/* HW automatically sends STOP after received NACK */
 		rcar_i2c_write(priv, ICMIER, RCAR_IRQ_STOP);
-		rcar_i2c_flags_set(priv, ID_NACK);
+		priv->flags |= ID_NACK;
 		goto out;
 	}
 
 	/* Stop */
 	if (msr & MST) {
-		rcar_i2c_flags_set(priv, ID_DONE);
+		priv->msgs_left--; /* The last message also made it */
+		priv->flags |= ID_DONE;
 		goto out;
 	}
 
 	if (rcar_i2c_is_recv(priv))
-		rcar_i2c_flags_set(priv, rcar_i2c_irq_recv(priv, msr));
+		rcar_i2c_irq_recv(priv, msr);
 	else
-		rcar_i2c_flags_set(priv, rcar_i2c_irq_send(priv, msr));
+		rcar_i2c_irq_send(priv, msr);
 
 out:
-	if (rcar_i2c_flags_has(priv, ID_DONE)) {
+	if (priv->flags & ID_DONE) {
 		rcar_i2c_write(priv, ICMIER, 0);
 		rcar_i2c_write(priv, ICMSR, 0);
 		wake_up(&priv->wait);
 	}
 
-exit:
-	spin_unlock(&priv->lock);
-	/*-------------- spin unlock -----------------*/
-
-	return result;
+	return IRQ_HANDLED;
 }
 
 static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
@@ -490,22 +478,11 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
 {
 	struct rcar_i2c_priv *priv = i2c_get_adapdata(adap);
 	struct device *dev = rcar_i2c_priv_to_dev(priv);
-	unsigned long flags;
 	int i, ret;
-	long timeout;
+	long time_left;
 
 	pm_runtime_get_sync(dev);
 
-	/*-------------- spin lock -----------------*/
-	spin_lock_irqsave(&priv->lock, flags);
-
-	rcar_i2c_init(priv);
-	/* start clock */
-	rcar_i2c_write(priv, ICCCR, priv->icccr);
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-	/*-------------- spin unlock -----------------*/
-
 	ret = rcar_i2c_bus_barrier(priv);
 	if (ret < 0)
 		goto out;
@@ -514,48 +491,27 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap,
 		/* This HW can't send STOP after address phase */
 		if (msgs[i].len == 0) {
 			ret = -EOPNOTSUPP;
-			break;
-		}
-
-		/*-------------- spin lock -----------------*/
-		spin_lock_irqsave(&priv->lock, flags);
-
-		/* init each data */
-		priv->msg	= &msgs[i];
-		priv->pos	= 0;
-		priv->flags	= 0;
-		if (i == num - 1)
-			rcar_i2c_flags_set(priv, ID_LAST_MSG);
-
-		rcar_i2c_prepare_msg(priv);
-
-		spin_unlock_irqrestore(&priv->lock, flags);
-		/*-------------- spin unlock -----------------*/
-
-		timeout = wait_event_timeout(priv->wait,
-					     rcar_i2c_flags_has(priv, ID_DONE),
-					     adap->timeout);
-		if (!timeout) {
-			ret = -ETIMEDOUT;
-			break;
-		}
-
-		if (rcar_i2c_flags_has(priv, ID_NACK)) {
-			ret = -ENXIO;
-			break;
-		}
-
-		if (rcar_i2c_flags_has(priv, ID_ARBLOST)) {
-			ret = -EAGAIN;
-			break;
-		}
-
-		if (rcar_i2c_flags_has(priv, ID_IOERROR)) {
-			ret = -EIO;
-			break;
+			goto out;
 		}
+	}
 
-		ret = i + 1; /* The number of transfer */
+	/* init first message */
+	priv->msg = msgs;
+	priv->msgs_left = num;
+	priv->flags = (priv->flags & ID_P_MASK) | ID_FIRST_MSG;
+	rcar_i2c_prepare_msg(priv);
+
+	time_left = wait_event_timeout(priv->wait, priv->flags & ID_DONE,
+				     num * adap->timeout);
+	if (!time_left) {
+		rcar_i2c_init(priv);
+		ret = -ETIMEDOUT;
+	} else if (priv->flags & ID_NACK) {
+		ret = -ENXIO;
+	} else if (priv->flags & ID_ARBLOST) {
+		ret = -EAGAIN;
+	} else {
+		ret = num - priv->msgs_left; /* The number of transfer */
 	}
 out:
 	pm_runtime_put(dev);
@@ -637,7 +593,7 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	struct i2c_adapter *adap;
 	struct resource *res;
 	struct device *dev = &pdev->dev;
-	u32 bus_speed;
+	struct i2c_timings i2c_t;
 	int irq, ret;
 
 	priv = devm_kzalloc(dev, sizeof(struct rcar_i2c_priv), GFP_KERNEL);
@@ -650,23 +606,13 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->clk);
 	}
 
-	bus_speed = 100000; /* default 100 kHz */
-	of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed);
-
-	priv->devtype = (enum rcar_i2c_type)of_match_device(rcar_i2c_dt_ids, dev)->data;
-
-	ret = rcar_i2c_clock_calculate(priv, bus_speed, dev);
-	if (ret < 0)
-		return ret;
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->io = devm_ioremap_resource(dev, res);
 	if (IS_ERR(priv->io))
 		return PTR_ERR(priv->io);
 
-	irq = platform_get_irq(pdev, 0);
+	priv->devtype = (enum rcar_i2c_type)of_match_device(rcar_i2c_dt_ids, dev)->data;
 	init_waitqueue_head(&priv->wait);
-	spin_lock_init(&priv->lock);
 
 	adap = &priv->adap;
 	adap->nr = pdev->id;
@@ -678,26 +624,47 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	i2c_set_adapdata(adap, priv);
 	strlcpy(adap->name, pdev->name, sizeof(adap->name));
 
-	ret = devm_request_irq(dev, irq, rcar_i2c_irq, 0,
-			       dev_name(dev), priv);
+	i2c_parse_fw_timings(dev, &i2c_t, false);
+
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+	ret = rcar_i2c_clock_calculate(priv, &i2c_t);
+	if (ret < 0)
+		goto out_pm_put;
+
+	rcar_i2c_init(priv);
+
+	/* Don't suspend when multi-master to keep arbitration working */
+	if (of_property_read_bool(dev->of_node, "multi-master"))
+		priv->flags |= ID_P_PM_BLOCKED;
+	else
+		pm_runtime_put(dev);
+
+
+	irq = platform_get_irq(pdev, 0);
+	ret = devm_request_irq(dev, irq, rcar_i2c_irq, 0, dev_name(dev), priv);
 	if (ret < 0) {
 		dev_err(dev, "cannot get irq %d\n", irq);
-		return ret;
+		goto out_pm_disable;
 	}
 
-	pm_runtime_enable(dev);
 	platform_set_drvdata(pdev, priv);
 
 	ret = i2c_add_numbered_adapter(adap);
 	if (ret < 0) {
 		dev_err(dev, "reg adap failed: %d\n", ret);
-		pm_runtime_disable(dev);
-		return ret;
+		goto out_pm_disable;
 	}
 
 	dev_info(dev, "probed\n");
 
 	return 0;
+
+ out_pm_put:
+	pm_runtime_put(dev);
+ out_pm_disable:
+	pm_runtime_disable(dev);
+	return ret;
 }
 
 static int rcar_i2c_remove(struct platform_device *pdev)
@@ -706,6 +673,8 @@ static int rcar_i2c_remove(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 
 	i2c_del_adapter(&priv->adap);
+	if (priv->flags & ID_P_PM_BLOCKED)
+		pm_runtime_put(dev);
 	pm_runtime_disable(dev);
 
 	return 0;
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 5df819610d52..362a6de54833 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -784,7 +784,6 @@ static int s3c24xx_i2c_xfer(struct i2c_adapter *adap,
 	int retry;
 	int ret;
 
-	pm_runtime_get_sync(&adap->dev);
 	ret = clk_enable(i2c->clk);
 	if (ret)
 		return ret;
@@ -795,7 +794,6 @@ static int s3c24xx_i2c_xfer(struct i2c_adapter *adap,
 
 		if (ret != -EAGAIN) {
 			clk_disable(i2c->clk);
-			pm_runtime_put(&adap->dev);
 			return ret;
 		}
 
@@ -805,7 +803,6 @@ static int s3c24xx_i2c_xfer(struct i2c_adapter *adap,
 	}
 
 	clk_disable(i2c->clk);
-	pm_runtime_put(&adap->dev);
 	return -EREMOTEIO;
 }
 
@@ -1256,8 +1253,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	pm_runtime_enable(&i2c->adap.dev);
-
 	dev_info(&pdev->dev, "%s: S3C I2C adapter\n", dev_name(&i2c->adap.dev));
 	return 0;
 }
@@ -1273,7 +1268,6 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
 
 	clk_unprepare(i2c->clk);
 
-	pm_runtime_disable(&i2c->adap.dev);
 	pm_runtime_disable(&pdev->dev);
 
 	s3c24xx_i2c_deregister_cpufreq(i2c);
diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
index 25020ec777c9..6ee77159ac57 100644
--- a/drivers/i2c/busses/i2c-st.c
+++ b/drivers/i2c/busses/i2c-st.c
@@ -708,8 +708,7 @@ static int st_i2c_xfer(struct i2c_adapter *i2c_adap,
 #ifdef CONFIG_PM_SLEEP
 static int st_i2c_suspend(struct device *dev)
 {
-	struct platform_device *pdev =
-		container_of(dev, struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
 
 	if (i2c_dev->busy)
diff --git a/drivers/i2c/busses/i2c-taos-evm.c b/drivers/i2c/busses/i2c-taos-evm.c
index 4c7fc2d47014..210ca82f8aa0 100644
--- a/drivers/i2c/busses/i2c-taos-evm.c
+++ b/drivers/i2c/busses/i2c-taos-evm.c
@@ -130,7 +130,13 @@ static int taos_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 			return 0;
 	} else {
 		if (p[0] == 'x') {
-			data->byte = simple_strtol(p + 1, NULL, 16);
+			/*
+			 * Voluntarily dropping error code of kstrtou8 since all
+			 * error code that it could return are invalid according
+			 * to Documentation/i2c/fault-codes.
+			 */
+			if (kstrtou8(p + 1, 16, &data->byte))
+				return -EPROTO;
 			return 0;
 		}
 	}
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c b/drivers/i2c/busses/i2c-uniphier-f.c
index e8d03bcfe3e0..f3e5ff8522f0 100644
--- a/drivers/i2c/busses/i2c-uniphier-f.c
+++ b/drivers/i2c/busses/i2c-uniphier-f.c
@@ -466,6 +466,11 @@ static int uniphier_fi2c_clk_init(struct device *dev,
 	if (of_property_read_u32(np, "clock-frequency", &bus_speed))
 		bus_speed = UNIPHIER_FI2C_DEFAULT_SPEED;
 
+	if (!bus_speed) {
+		dev_err(dev, "clock-freqyency should not be zero\n");
+		return -EINVAL;
+	}
+
 	if (bus_speed > UNIPHIER_FI2C_MAX_SPEED)
 		bus_speed = UNIPHIER_FI2C_MAX_SPEED;
 
@@ -481,6 +486,10 @@ static int uniphier_fi2c_clk_init(struct device *dev,
 		return ret;
 
 	clk_rate = clk_get_rate(priv->clk);
+	if (!clk_rate) {
+		dev_err(dev, "input clock rate should not be zero\n");
+		return -EINVAL;
+	}
 
 	uniphier_fi2c_reset(priv);
 
@@ -531,7 +540,7 @@ static int uniphier_fi2c_probe(struct platform_device *pdev)
 
 	ret = uniphier_fi2c_clk_init(dev, priv);
 	if (ret)
-		return ret;
+		goto err;
 
 	ret = devm_request_irq(dev, irq, uniphier_fi2c_interrupt, 0,
 			       pdev->name, priv);
diff --git a/drivers/i2c/busses/i2c-uniphier.c b/drivers/i2c/busses/i2c-uniphier.c
index e3c3861c3325..1f4f3f53819c 100644
--- a/drivers/i2c/busses/i2c-uniphier.c
+++ b/drivers/i2c/busses/i2c-uniphier.c
@@ -327,6 +327,11 @@ static int uniphier_i2c_clk_init(struct device *dev,
 	if (of_property_read_u32(np, "clock-frequency", &bus_speed))
 		bus_speed = UNIPHIER_I2C_DEFAULT_SPEED;
 
+	if (!bus_speed) {
+		dev_err(dev, "clock-freqyency should not be zero\n");
+		return -EINVAL;
+	}
+
 	if (bus_speed > UNIPHIER_I2C_MAX_SPEED)
 		bus_speed = UNIPHIER_I2C_MAX_SPEED;
 
@@ -342,6 +347,10 @@ static int uniphier_i2c_clk_init(struct device *dev,
 		return ret;
 
 	clk_rate = clk_get_rate(priv->clk);
+	if (!clk_rate) {
+		dev_err(dev, "input clock rate should not be zero\n");
+		return -EINVAL;
+	}
 
 	uniphier_i2c_reset(priv, true);
 
@@ -388,7 +397,7 @@ static int uniphier_i2c_probe(struct platform_device *pdev)
 
 	ret = uniphier_i2c_clk_init(dev, priv);
 	if (ret)
-		return ret;
+		goto err;
 
 	ret = devm_request_irq(dev, irq, uniphier_i2c_interrupt, 0, pdev->name,
 			       priv);
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 0b20449e48cf..6efd20095d5d 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -70,7 +70,7 @@ struct xiic_i2c {
 	wait_queue_head_t	wait;
 	struct i2c_adapter	adap;
 	struct i2c_msg		*tx_msg;
-	spinlock_t		lock;
+	struct mutex		lock;
 	unsigned int		tx_pos;
 	unsigned int		nmsgs;
 	enum xilinx_i2c_state	state;
@@ -369,7 +369,7 @@ static irqreturn_t xiic_process(int irq, void *dev_id)
 	 * To find which interrupts are pending; AND interrupts pending with
 	 * interrupts masked.
 	 */
-	spin_lock(&i2c->lock);
+	mutex_lock(&i2c->lock);
 	isr = xiic_getreg32(i2c, XIIC_IISR_OFFSET);
 	ier = xiic_getreg32(i2c, XIIC_IIER_OFFSET);
 	pend = isr & ier;
@@ -497,7 +497,7 @@ out:
 	dev_dbg(i2c->adap.dev.parent, "%s clr: 0x%x\n", __func__, clr);
 
 	xiic_setreg32(i2c, XIIC_IISR_OFFSET, clr);
-	spin_unlock(&i2c->lock);
+	mutex_unlock(&i2c->lock);
 	return IRQ_HANDLED;
 }
 
@@ -662,10 +662,10 @@ static void __xiic_start_xfer(struct xiic_i2c *i2c)
 
 static void xiic_start_xfer(struct xiic_i2c *i2c)
 {
-	spin_lock(&i2c->lock);
+	mutex_lock(&i2c->lock);
 	xiic_reinit(i2c);
 	__xiic_start_xfer(i2c);
-	spin_unlock(&i2c->lock);
+	mutex_unlock(&i2c->lock);
 }
 
 static int xiic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
@@ -745,7 +745,7 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 	i2c->adap.dev.parent = &pdev->dev;
 	i2c->adap.dev.of_node = pdev->dev.of_node;
 
-	spin_lock_init(&i2c->lock);
+	mutex_init(&i2c->lock);
 	init_waitqueue_head(&i2c->wait);
 
 	ret = devm_request_threaded_irq(&pdev->dev, irq, xiic_isr,
diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c
index 8b36bcfd952d..613c3a4f2c51 100644
--- a/drivers/i2c/busses/i2c-xlr.c
+++ b/drivers/i2c/busses/i2c-xlr.c
@@ -17,6 +17,10 @@
 #include <linux/i2c.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
 
 /* XLR I2C REGISTERS */
 #define XLR_I2C_CFG		0x00
@@ -30,6 +34,10 @@
 #define XLR_I2C_BYTECNT		0x08
 #define XLR_I2C_HDSTATIM	0x09
 
+/* Sigma Designs additional registers */
+#define XLR_I2C_INT_EN		0x09
+#define XLR_I2C_INT_STAT	0x0a
+
 /* XLR I2C REGISTERS FLAGS */
 #define XLR_I2C_BUS_BUSY	0x01
 #define XLR_I2C_SDOEMPTY	0x02
@@ -63,11 +71,98 @@ static inline u32 xlr_i2c_rdreg(u32 __iomem *base, unsigned int reg)
 	return __raw_readl(base + reg);
 }
 
+#define XLR_I2C_FLAG_IRQ	1
+
+struct xlr_i2c_config {
+	u32 flags;		/* optional feature support */
+	u32 status_busy;	/* value of STATUS[0] when busy */
+	u32 cfg_extra;		/* extra CFG bits to set */
+};
+
 struct xlr_i2c_private {
 	struct i2c_adapter adap;
 	u32 __iomem *iobase;
+	int irq;
+	int pos;
+	struct i2c_msg *msg;
+	const struct xlr_i2c_config *cfg;
+	wait_queue_head_t wait;
+	struct clk *clk;
 };
 
+static int xlr_i2c_busy(struct xlr_i2c_private *priv, u32 status)
+{
+	return (status & XLR_I2C_BUS_BUSY) == priv->cfg->status_busy;
+}
+
+static int xlr_i2c_idle(struct xlr_i2c_private *priv)
+{
+	return !xlr_i2c_busy(priv, xlr_i2c_rdreg(priv->iobase, XLR_I2C_STATUS));
+}
+
+static int xlr_i2c_wait(struct xlr_i2c_private *priv, unsigned long timeout)
+{
+	int status;
+	int t;
+
+	t = wait_event_timeout(priv->wait, xlr_i2c_idle(priv),
+				msecs_to_jiffies(timeout));
+	if (!t)
+		return -ETIMEDOUT;
+
+	status = xlr_i2c_rdreg(priv->iobase, XLR_I2C_STATUS);
+
+	return status & XLR_I2C_ACK_ERR ? -EIO : 0;
+}
+
+static void xlr_i2c_tx_irq(struct xlr_i2c_private *priv, u32 status)
+{
+	struct i2c_msg *msg = priv->msg;
+
+	if (status & XLR_I2C_SDOEMPTY)
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_DATAOUT,
+				msg->buf[priv->pos++]);
+}
+
+static void xlr_i2c_rx_irq(struct xlr_i2c_private *priv, u32 status)
+{
+	struct i2c_msg *msg = priv->msg;
+
+	if (status & XLR_I2C_RXRDY)
+		msg->buf[priv->pos++] =
+			xlr_i2c_rdreg(priv->iobase, XLR_I2C_DATAIN);
+}
+
+static irqreturn_t xlr_i2c_irq(int irq, void *dev_id)
+{
+	struct xlr_i2c_private *priv = dev_id;
+	struct i2c_msg *msg = priv->msg;
+	u32 int_stat, status;
+
+	int_stat = xlr_i2c_rdreg(priv->iobase, XLR_I2C_INT_STAT);
+	if (!int_stat)
+		return IRQ_NONE;
+
+	xlr_i2c_wreg(priv->iobase, XLR_I2C_INT_STAT, int_stat);
+
+	if (!msg)
+		return IRQ_HANDLED;
+
+	status = xlr_i2c_rdreg(priv->iobase, XLR_I2C_STATUS);
+
+	if (priv->pos < msg->len) {
+		if (msg->flags & I2C_M_RD)
+			xlr_i2c_rx_irq(priv, status);
+		else
+			xlr_i2c_tx_irq(priv, status);
+	}
+
+	if (!xlr_i2c_busy(priv, status))
+		wake_up(&priv->wait);
+
+	return IRQ_HANDLED;
+}
+
 static int xlr_i2c_tx(struct xlr_i2c_private *priv,  u16 len,
 	u8 *buf, u16 addr)
 {
@@ -75,37 +170,48 @@ static int xlr_i2c_tx(struct xlr_i2c_private *priv,  u16 len,
 	unsigned long timeout, stoptime, checktime;
 	u32 i2c_status;
 	int pos, timedout;
-	u8 offset, byte;
+	u8 offset;
+	u32 xfer;
+
+	if (!len)
+		return -EOPNOTSUPP;
 
 	offset = buf[0];
 	xlr_i2c_wreg(priv->iobase, XLR_I2C_ADDR, offset);
 	xlr_i2c_wreg(priv->iobase, XLR_I2C_DEVADDR, addr);
-	xlr_i2c_wreg(priv->iobase, XLR_I2C_CFG, XLR_I2C_CFG_ADDR);
-	xlr_i2c_wreg(priv->iobase, XLR_I2C_BYTECNT, len - 1);
+	xlr_i2c_wreg(priv->iobase, XLR_I2C_CFG,
+			XLR_I2C_CFG_ADDR | priv->cfg->cfg_extra);
 
 	timeout = msecs_to_jiffies(XLR_I2C_TIMEOUT);
 	stoptime = jiffies + timeout;
 	timedout = 0;
-	pos = 1;
-retry:
+
 	if (len == 1) {
-		xlr_i2c_wreg(priv->iobase, XLR_I2C_STARTXFR,
-				XLR_I2C_STARTXFR_ND);
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_BYTECNT, len - 1);
+		xfer = XLR_I2C_STARTXFR_ND;
+		pos = 1;
 	} else {
-		xlr_i2c_wreg(priv->iobase, XLR_I2C_DATAOUT, buf[pos]);
-		xlr_i2c_wreg(priv->iobase, XLR_I2C_STARTXFR,
-				XLR_I2C_STARTXFR_WR);
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_BYTECNT, len - 2);
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_DATAOUT, buf[1]);
+		xfer = XLR_I2C_STARTXFR_WR;
+		pos = 2;
 	}
 
+	priv->pos = pos;
+
+retry:
+	/* retry can only happen on the first byte */
+	xlr_i2c_wreg(priv->iobase, XLR_I2C_STARTXFR, xfer);
+
+	if (priv->irq > 0)
+		return xlr_i2c_wait(priv, XLR_I2C_TIMEOUT * len);
+
 	while (!timedout) {
 		checktime = jiffies;
 		i2c_status = xlr_i2c_rdreg(priv->iobase, XLR_I2C_STATUS);
 
-		if (i2c_status & XLR_I2C_SDOEMPTY) {
-			pos++;
-			/* need to do a empty dataout after the last byte */
-			byte = (pos < len) ? buf[pos] : 0;
-			xlr_i2c_wreg(priv->iobase, XLR_I2C_DATAOUT, byte);
+		if ((i2c_status & XLR_I2C_SDOEMPTY) && pos < len) {
+			xlr_i2c_wreg(priv->iobase, XLR_I2C_DATAOUT, buf[pos++]);
 
 			/* reset timeout on successful xmit */
 			stoptime = jiffies + timeout;
@@ -121,7 +227,7 @@ retry:
 		if (i2c_status & XLR_I2C_ACK_ERR)
 			return -EIO;
 
-		if ((i2c_status & XLR_I2C_BUS_BUSY) == 0 && pos >= len)
+		if (!xlr_i2c_busy(priv, i2c_status) && pos >= len)
 			return 0;
 	}
 	dev_err(&adap->dev, "I2C transmit timeout\n");
@@ -134,12 +240,17 @@ static int xlr_i2c_rx(struct xlr_i2c_private *priv, u16 len, u8 *buf, u16 addr)
 	u32 i2c_status;
 	unsigned long timeout, stoptime, checktime;
 	int nbytes, timedout;
-	u8 byte;
 
-	xlr_i2c_wreg(priv->iobase, XLR_I2C_CFG, XLR_I2C_CFG_NOADDR);
-	xlr_i2c_wreg(priv->iobase, XLR_I2C_BYTECNT, len);
+	if (!len)
+		return -EOPNOTSUPP;
+
+	xlr_i2c_wreg(priv->iobase, XLR_I2C_CFG,
+			XLR_I2C_CFG_NOADDR | priv->cfg->cfg_extra);
+	xlr_i2c_wreg(priv->iobase, XLR_I2C_BYTECNT, len - 1);
 	xlr_i2c_wreg(priv->iobase, XLR_I2C_DEVADDR, addr);
 
+	priv->pos = 0;
+
 	timeout = msecs_to_jiffies(XLR_I2C_TIMEOUT);
 	stoptime = jiffies + timeout;
 	timedout = 0;
@@ -147,18 +258,18 @@ static int xlr_i2c_rx(struct xlr_i2c_private *priv, u16 len, u8 *buf, u16 addr)
 retry:
 	xlr_i2c_wreg(priv->iobase, XLR_I2C_STARTXFR, XLR_I2C_STARTXFR_RD);
 
+	if (priv->irq > 0)
+		return xlr_i2c_wait(priv, XLR_I2C_TIMEOUT * len);
+
 	while (!timedout) {
 		checktime = jiffies;
 		i2c_status = xlr_i2c_rdreg(priv->iobase, XLR_I2C_STATUS);
 		if (i2c_status & XLR_I2C_RXRDY) {
-			if (nbytes > len)
+			if (nbytes >= len)
 				return -EIO;	/* should not happen */
 
-			/* we need to do a dummy datain when nbytes == len */
-			byte = xlr_i2c_rdreg(priv->iobase, XLR_I2C_DATAIN);
-			if (nbytes < len)
-				buf[nbytes] = byte;
-			nbytes++;
+			buf[nbytes++] =
+				xlr_i2c_rdreg(priv->iobase, XLR_I2C_DATAIN);
 
 			/* reset timeout on successful read */
 			stoptime = jiffies + timeout;
@@ -174,7 +285,7 @@ retry:
 		if (i2c_status & XLR_I2C_ACK_ERR)
 			return -EIO;
 
-		if ((i2c_status & XLR_I2C_BUS_BUSY) == 0)
+		if (!xlr_i2c_busy(priv, i2c_status))
 			return 0;
 	}
 
@@ -190,8 +301,17 @@ static int xlr_i2c_xfer(struct i2c_adapter *adap,
 	int ret = 0;
 	struct xlr_i2c_private *priv = i2c_get_adapdata(adap);
 
+	ret = clk_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	if (priv->irq)
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_INT_EN, 0xf);
+
+
 	for (i = 0; ret == 0 && i < num; i++) {
 		msg = &msgs[i];
+		priv->msg = msg;
 		if (msg->flags & I2C_M_RD)
 			ret = xlr_i2c_rx(priv, msg->len, &msg->buf[0],
 					msg->addr);
@@ -200,13 +320,19 @@ static int xlr_i2c_xfer(struct i2c_adapter *adap,
 					msg->addr);
 	}
 
+	if (priv->irq)
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_INT_EN, 0);
+
+	clk_disable(priv->clk);
+	priv->msg = NULL;
+
 	return (ret != 0) ? ret : num;
 }
 
 static u32 xlr_func(struct i2c_adapter *adap)
 {
 	/* Emulate SMBUS over I2C */
-	return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
+	return (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) | I2C_FUNC_I2C;
 }
 
 static struct i2c_algorithm xlr_i2c_algo = {
@@ -214,22 +340,89 @@ static struct i2c_algorithm xlr_i2c_algo = {
 	.functionality	= xlr_func,
 };
 
+static const struct xlr_i2c_config xlr_i2c_config_default = {
+	.status_busy	= XLR_I2C_BUS_BUSY,
+	.cfg_extra	= 0,
+};
+
+static const struct xlr_i2c_config xlr_i2c_config_tangox = {
+	.flags		= XLR_I2C_FLAG_IRQ,
+	.status_busy	= 0,
+	.cfg_extra	= 1 << 8,
+};
+
+static const struct of_device_id xlr_i2c_dt_ids[] = {
+	{
+		.compatible	= "sigma,smp8642-i2c",
+		.data		= &xlr_i2c_config_tangox,
+	},
+	{ }
+};
+
 static int xlr_i2c_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *match;
 	struct xlr_i2c_private  *priv;
 	struct resource *res;
+	struct clk *clk;
+	unsigned long clk_rate;
+	unsigned long clk_div;
+	u32 busfreq;
+	int irq;
 	int ret;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
+	match = of_match_device(xlr_i2c_dt_ids, &pdev->dev);
+	if (match)
+		priv->cfg = match->data;
+	else
+		priv->cfg = &xlr_i2c_config_default;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->iobase = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(priv->iobase))
 		return PTR_ERR(priv->iobase);
 
+	irq = platform_get_irq(pdev, 0);
+
+	if (irq > 0 && (priv->cfg->flags & XLR_I2C_FLAG_IRQ)) {
+		priv->irq = irq;
+
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_INT_EN, 0);
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_INT_STAT, 0xf);
+
+		ret = devm_request_irq(&pdev->dev, priv->irq, xlr_i2c_irq,
+					IRQF_SHARED, dev_name(&pdev->dev),
+					priv);
+		if (ret)
+			return ret;
+
+		init_waitqueue_head(&priv->wait);
+	}
+
+	if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+				 &busfreq))
+		busfreq = 100000;
+
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (!IS_ERR(clk)) {
+		ret = clk_prepare_enable(clk);
+		if (ret)
+			return ret;
+
+		clk_rate = clk_get_rate(clk);
+		clk_div = DIV_ROUND_UP(clk_rate, 2 * busfreq);
+		xlr_i2c_wreg(priv->iobase, XLR_I2C_CLKDIV, clk_div);
+
+		clk_disable(clk);
+		priv->clk = clk;
+	}
+
 	priv->adap.dev.parent = &pdev->dev;
+	priv->adap.dev.of_node	= pdev->dev.of_node;
 	priv->adap.owner	= THIS_MODULE;
 	priv->adap.algo_data	= priv;
 	priv->adap.algo		= &xlr_i2c_algo;
@@ -255,6 +448,8 @@ static int xlr_i2c_remove(struct platform_device *pdev)
 
 	priv = platform_get_drvdata(pdev);
 	i2c_del_adapter(&priv->adap);
+	clk_unprepare(priv->clk);
+
 	return 0;
 }
 
@@ -263,6 +458,7 @@ static struct platform_driver xlr_i2c_driver = {
 	.remove = xlr_i2c_remove,
 	.driver = {
 		.name   = "xlr-i2cbus",
+		.of_match_table	= xlr_i2c_dt_ids,
 	},
 };
 
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index ba8eb087f224..ffe715d346d8 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -53,6 +53,7 @@
 #include <linux/jump_label.h>
 #include <asm/uaccess.h>
 #include <linux/err.h>
+#include <linux/property.h>
 
 #include "i2c-core.h"
 
@@ -1563,6 +1564,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 	dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name);
 
 	pm_runtime_no_callbacks(&adap->dev);
+	pm_runtime_enable(&adap->dev);
 
 #ifdef CONFIG_I2C_COMPAT
 	res = class_compat_create_link(i2c_adapter_compat_class, &adap->dev,
@@ -1817,6 +1819,8 @@ void i2c_del_adapter(struct i2c_adapter *adap)
 	/* device name is gone after device_unregister */
 	dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
 
+	pm_runtime_disable(&adap->dev);
+
 	/* wait until all references to the device are gone
 	 *
 	 * FIXME: This is old code and should ideally be replaced by an
@@ -1839,6 +1843,58 @@ void i2c_del_adapter(struct i2c_adapter *adap)
 }
 EXPORT_SYMBOL(i2c_del_adapter);
 
+/**
+ * i2c_parse_fw_timings - get I2C related timing parameters from firmware
+ * @dev: The device to scan for I2C timing properties
+ * @t: the i2c_timings struct to be filled with values
+ * @use_defaults: bool to use sane defaults derived from the I2C specification
+ *		  when properties are not found, otherwise use 0
+ *
+ * Scan the device for the generic I2C properties describing timing parameters
+ * for the signal and fill the given struct with the results. If a property was
+ * not found and use_defaults was true, then maximum timings are assumed which
+ * are derived from the I2C specification. If use_defaults is not used, the
+ * results will be 0, so drivers can apply their own defaults later. The latter
+ * is mainly intended for avoiding regressions of existing drivers which want
+ * to switch to this function. New drivers almost always should use the defaults.
+ */
+
+void i2c_parse_fw_timings(struct device *dev, struct i2c_timings *t, bool use_defaults)
+{
+	int ret;
+
+	memset(t, 0, sizeof(*t));
+
+	ret = device_property_read_u32(dev, "clock-frequency", &t->bus_freq_hz);
+	if (ret && use_defaults)
+		t->bus_freq_hz = 100000;
+
+	ret = device_property_read_u32(dev, "i2c-scl-rising-time-ns", &t->scl_rise_ns);
+	if (ret && use_defaults) {
+		if (t->bus_freq_hz <= 100000)
+			t->scl_rise_ns = 1000;
+		else if (t->bus_freq_hz <= 400000)
+			t->scl_rise_ns = 300;
+		else
+			t->scl_rise_ns = 120;
+	}
+
+	ret = device_property_read_u32(dev, "i2c-scl-falling-time-ns", &t->scl_fall_ns);
+	if (ret && use_defaults) {
+		if (t->bus_freq_hz <= 400000)
+			t->scl_fall_ns = 300;
+		else
+			t->scl_fall_ns = 120;
+	}
+
+	device_property_read_u32(dev, "i2c-scl-internal-delay-ns", &t->scl_int_delay_ns);
+
+	ret = device_property_read_u32(dev, "i2c-sda-falling-time-ns", &t->sda_fall_ns);
+	if (ret && use_defaults)
+		t->sda_fall_ns = t->scl_fall_ns;
+}
+EXPORT_SYMBOL_GPL(i2c_parse_fw_timings);
+
 /* ------------------------------------------------------------------------- */
 
 int i2c_for_each_dev(void *data, int (*fn)(struct device *, void *))
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index 66792e707d74..505e921f0b19 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -22,6 +22,14 @@ if IIO_BUFFER
 	source "drivers/iio/buffer/Kconfig"
 endif # IIO_BUFFER
 
+config IIO_CONFIGFS
+	tristate "Enable IIO configuration via configfs"
+	select CONFIGFS_FS
+	help
+	  This allows configuring various IIO bits through configfs
+	  (e.g. software triggers). For more info see
+	  Documentation/iio/iio_configfs.txt.
+
 config IIO_TRIGGER
 	bool "Enable triggered sampling support"
 	help
@@ -38,6 +46,14 @@ config IIO_CONSUMERS_PER_TRIGGER
 	This value controls the maximum number of consumers that a
 	given trigger may handle. Default is 2.
 
+config IIO_SW_TRIGGER
+	tristate "Enable software triggers support"
+	select IIO_CONFIGFS
+	help
+	 Provides IIO core support for software triggers. A software
+	 trigger can be created via configfs or directly by a driver
+	 using the API provided.
+
 config IIO_TRIGGERED_EVENT
 	tristate
 	select IIO_TRIGGER
@@ -50,8 +66,10 @@ source "drivers/iio/amplifiers/Kconfig"
 source "drivers/iio/chemical/Kconfig"
 source "drivers/iio/common/Kconfig"
 source "drivers/iio/dac/Kconfig"
+source "drivers/iio/dummy/Kconfig"
 source "drivers/iio/frequency/Kconfig"
 source "drivers/iio/gyro/Kconfig"
+source "drivers/iio/health/Kconfig"
 source "drivers/iio/humidity/Kconfig"
 source "drivers/iio/imu/Kconfig"
 source "drivers/iio/light/Kconfig"
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index aeca7269fe44..20f649073462 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -7,6 +7,8 @@ industrialio-y := industrialio-core.o industrialio-event.o inkern.o
 industrialio-$(CONFIG_IIO_BUFFER) += industrialio-buffer.o
 industrialio-$(CONFIG_IIO_TRIGGER) += industrialio-trigger.o
 
+obj-$(CONFIG_IIO_CONFIGFS) += industrialio-configfs.o
+obj-$(CONFIG_IIO_SW_TRIGGER) += industrialio-sw-trigger.o
 obj-$(CONFIG_IIO_TRIGGERED_EVENT) += industrialio-triggered-event.o
 
 obj-y += accel/
@@ -16,8 +18,10 @@ obj-y += buffer/
 obj-y += chemical/
 obj-y += common/
 obj-y += dac/
+obj-y += dummy/
 obj-y += gyro/
 obj-y += frequency/
+obj-y += health/
 obj-y += humidity/
 obj-y += imu/
 obj-y += light/
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 969428dd6329..edc29b173f6c 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -64,7 +64,7 @@ config IIO_ST_ACCEL_3AXIS
 	help
 	  Say yes here to build support for STMicroelectronics accelerometers:
 	  LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
-	  LIS331DLH, LSM303DL, LSM303DLM, LSM330.
+	  LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12.
 
 	  This driver can also be built as a module. If so, these modules
 	  will be created:
@@ -107,6 +107,35 @@ config KXCJK1013
 	  To compile this driver as a module, choose M here: the module will
 	  be called kxcjk-1013.
 
+config MMA7455
+	tristate
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+
+config MMA7455_I2C
+	tristate "Freescale MMA7455L/MMA7456L Accelerometer I2C Driver"
+	depends on I2C
+	select MMA7455
+	select REGMAP_I2C
+	help
+	  Say yes here to build support for the Freescale MMA7455L and
+	  MMA7456L 3-axis accelerometer.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called mma7455_i2c.
+
+config MMA7455_SPI
+	tristate "Freescale MMA7455L/MMA7456L Accelerometer SPI Driver"
+	depends on SPI_MASTER
+	select MMA7455
+	select REGMAP_SPI
+	help
+	  Say yes here to build support for the Freescale MMA7455L and
+	  MMA7456L 3-axis accelerometer.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called mma7455_spi.
+
 config MMA8452
 	tristate "Freescale MMA8452Q and similar Accelerometers Driver"
 	depends on I2C
@@ -158,6 +187,17 @@ config MXC4005
 	  To compile this driver as a module, choose M. The module will be
 	  called mxc4005.
 
+config MXC6255
+	tristate "Memsic MXC6255 Orientation Sensing Accelerometer Driver"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say yes here to build support for the Memsic MXC6255 Orientation
+	  Sensing Accelerometer Driver.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called mxc6255.
+
 config STK8312
 	tristate "Sensortek STK8312 3-Axis Accelerometer Driver"
 	depends on I2C
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 7925f166e6e9..71b6794de885 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -10,6 +10,11 @@ obj-$(CONFIG_BMC150_ACCEL_SPI) += bmc150-accel-spi.o
 obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o
 obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o
 obj-$(CONFIG_KXSD9)	+= kxsd9.o
+
+obj-$(CONFIG_MMA7455)		+= mma7455_core.o
+obj-$(CONFIG_MMA7455_I2C)	+= mma7455_i2c.o
+obj-$(CONFIG_MMA7455_SPI)	+= mma7455_spi.o
+
 obj-$(CONFIG_MMA8452)	+= mma8452.o
 
 obj-$(CONFIG_MMA9551_CORE)	+= mma9551_core.o
@@ -17,6 +22,7 @@ obj-$(CONFIG_MMA9551)		+= mma9551.o
 obj-$(CONFIG_MMA9553)		+= mma9553.o
 
 obj-$(CONFIG_MXC4005)		+= mxc4005.o
+obj-$(CONFIG_MXC6255)		+= mxc6255.o
 
 obj-$(CONFIG_STK8312)		+= stk8312.o
 obj-$(CONFIG_STK8BA50)		+= stk8ba50.o
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 2d33f1e821db..c73331f7782b 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1623,24 +1623,22 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
 		}
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(dev, "Unable to register iio device\n");
-		goto err_trigger_unregister;
-	}
-
 	ret = pm_runtime_set_active(dev);
 	if (ret)
-		goto err_iio_unregister;
+		goto err_trigger_unregister;
 
 	pm_runtime_enable(dev);
 	pm_runtime_set_autosuspend_delay(dev, BMC150_AUTO_SUSPEND_DELAY_MS);
 	pm_runtime_use_autosuspend(dev);
 
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(dev, "Unable to register iio device\n");
+		goto err_trigger_unregister;
+	}
+
 	return 0;
 
-err_iio_unregister:
-	iio_device_unregister(indio_dev);
 err_trigger_unregister:
 	bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
 err_buffer_cleanup:
@@ -1655,12 +1653,12 @@ int bmc150_accel_core_remove(struct device *dev)
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(data->dev);
 	pm_runtime_set_suspended(data->dev);
 	pm_runtime_put_noidle(data->dev);
 
-	iio_device_unregister(indio_dev);
-
 	bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
 
 	iio_triggered_buffer_cleanup(indio_dev);
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 18c1b06684c1..edec1d099e91 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1264,25 +1264,23 @@ static int kxcjk1013_probe(struct i2c_client *client,
 		goto err_trigger_unregister;
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(&client->dev, "unable to register iio device\n");
-		goto err_buffer_cleanup;
-	}
-
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret)
-		goto err_iio_unregister;
+		goto err_buffer_cleanup;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev,
 					 KXCJK1013_SLEEP_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to register iio device\n");
+		goto err_buffer_cleanup;
+	}
+
 	return 0;
 
-err_iio_unregister:
-	iio_device_unregister(indio_dev);
 err_buffer_cleanup:
 	if (data->dready_trig)
 		iio_triggered_buffer_cleanup(indio_dev);
@@ -1302,12 +1300,12 @@ static int kxcjk1013_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct kxcjk1013_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(indio_dev);
-
 	if (data->dready_trig) {
 		iio_triggered_buffer_cleanup(indio_dev);
 		iio_trigger_unregister(data->dready_trig);
diff --git a/drivers/iio/accel/mma7455.h b/drivers/iio/accel/mma7455.h
new file mode 100644
index 000000000000..2b1152c53d4f
--- /dev/null
+++ b/drivers/iio/accel/mma7455.h
@@ -0,0 +1,19 @@
+/*
+ * IIO accel driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MMA7455_H
+#define __MMA7455_H
+
+extern const struct regmap_config mma7455_core_regmap;
+
+int mma7455_core_probe(struct device *dev, struct regmap *regmap,
+		       const char *name);
+int mma7455_core_remove(struct device *dev);
+
+#endif
diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c
new file mode 100644
index 000000000000..c633cc2c0789
--- /dev/null
+++ b/drivers/iio/accel/mma7455_core.c
@@ -0,0 +1,311 @@
+/*
+ * IIO accel core driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * UNSUPPORTED hardware features:
+ *  - 8-bit mode with different scales
+ *  - INT1/INT2 interrupts
+ *  - Offset calibration
+ *  - Events
+ */
+
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "mma7455.h"
+
+#define MMA7455_REG_XOUTL		0x00
+#define MMA7455_REG_XOUTH		0x01
+#define MMA7455_REG_YOUTL		0x02
+#define MMA7455_REG_YOUTH		0x03
+#define MMA7455_REG_ZOUTL		0x04
+#define MMA7455_REG_ZOUTH		0x05
+#define MMA7455_REG_STATUS		0x09
+#define  MMA7455_STATUS_DRDY		BIT(0)
+#define MMA7455_REG_WHOAMI		0x0f
+#define  MMA7455_WHOAMI_ID		0x55
+#define MMA7455_REG_MCTL		0x16
+#define  MMA7455_MCTL_MODE_STANDBY	0x00
+#define  MMA7455_MCTL_MODE_MEASURE	0x01
+#define MMA7455_REG_CTL1		0x18
+#define  MMA7455_CTL1_DFBW_MASK		BIT(7)
+#define  MMA7455_CTL1_DFBW_125HZ	BIT(7)
+#define  MMA7455_CTL1_DFBW_62_5HZ	0
+#define MMA7455_REG_TW			0x1e
+
+/*
+ * When MMA7455 is used in 10-bit it has a fullscale of -8g
+ * corresponding to raw value -512. The userspace interface
+ * uses m/s^2 and we declare micro units.
+ * So scale factor is given by:
+ *       g * 8 * 1e6 / 512 = 153228.90625, with g = 9.80665
+ */
+#define MMA7455_10BIT_SCALE	153229
+
+struct mma7455_data {
+	struct regmap *regmap;
+	struct device *dev;
+};
+
+static int mma7455_drdy(struct mma7455_data *mma7455)
+{
+	unsigned int reg;
+	int tries = 3;
+	int ret;
+
+	while (tries-- > 0) {
+		ret = regmap_read(mma7455->regmap, MMA7455_REG_STATUS, &reg);
+		if (ret)
+			return ret;
+
+		if (reg & MMA7455_STATUS_DRDY)
+			return 0;
+
+		msleep(20);
+	}
+
+	dev_warn(mma7455->dev, "data not ready\n");
+
+	return -EIO;
+}
+
+static irqreturn_t mma7455_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct mma7455_data *mma7455 = iio_priv(indio_dev);
+	u8 buf[16]; /* 3 x 16-bit channels + padding + ts */
+	int ret;
+
+	ret = mma7455_drdy(mma7455);
+	if (ret)
+		goto done;
+
+	ret = regmap_bulk_read(mma7455->regmap, MMA7455_REG_XOUTL, buf,
+			       sizeof(__le16) * 3);
+	if (ret)
+		goto done;
+
+	iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static int mma7455_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long mask)
+{
+	struct mma7455_data *mma7455 = iio_priv(indio_dev);
+	unsigned int reg;
+	__le16 data;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (iio_buffer_enabled(indio_dev))
+			return -EBUSY;
+
+		ret = mma7455_drdy(mma7455);
+		if (ret)
+			return ret;
+
+		ret = regmap_bulk_read(mma7455->regmap, chan->address, &data,
+				       sizeof(data));
+		if (ret)
+			return ret;
+
+		*val = sign_extend32(le16_to_cpu(data), 9);
+
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = MMA7455_10BIT_SCALE;
+
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		ret = regmap_read(mma7455->regmap, MMA7455_REG_CTL1, &reg);
+		if (ret)
+			return ret;
+
+		if (reg & MMA7455_CTL1_DFBW_MASK)
+			*val = 250;
+		else
+			*val = 125;
+
+		return IIO_VAL_INT;
+	}
+
+	return -EINVAL;
+}
+
+static int mma7455_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct mma7455_data *mma7455 = iio_priv(indio_dev);
+	int i;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		if (val == 250 && val2 == 0)
+			i = MMA7455_CTL1_DFBW_125HZ;
+		else if (val == 125 && val2 == 0)
+			i = MMA7455_CTL1_DFBW_62_5HZ;
+		else
+			return -EINVAL;
+
+		return regmap_update_bits(mma7455->regmap, MMA7455_REG_CTL1,
+					  MMA7455_CTL1_DFBW_MASK, i);
+
+	case IIO_CHAN_INFO_SCALE:
+		/* In 10-bit mode there is only one scale available */
+		if (val == 0 && val2 == MMA7455_10BIT_SCALE)
+			return 0;
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static IIO_CONST_ATTR(sampling_frequency_available, "125 250");
+
+static struct attribute *mma7455_attributes[] = {
+	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group mma7455_group = {
+	.attrs = mma7455_attributes,
+};
+
+static const struct iio_info mma7455_info = {
+	.attrs = &mma7455_group,
+	.read_raw = mma7455_read_raw,
+	.write_raw = mma7455_write_raw,
+	.driver_module = THIS_MODULE,
+};
+
+#define MMA7455_CHANNEL(axis, idx) { \
+	.type = IIO_ACCEL, \
+	.modified = 1, \
+	.address = MMA7455_REG_##axis##OUTL,\
+	.channel2 = IIO_MOD_##axis, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+				    BIT(IIO_CHAN_INFO_SCALE), \
+	.scan_index = idx, \
+	.scan_type = { \
+		.sign = 's', \
+		.realbits = 10, \
+		.storagebits = 16, \
+		.endianness = IIO_LE, \
+	}, \
+}
+
+static const struct iio_chan_spec mma7455_channels[] = {
+	MMA7455_CHANNEL(X, 0),
+	MMA7455_CHANNEL(Y, 1),
+	MMA7455_CHANNEL(Z, 2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
+static const unsigned long mma7455_scan_masks[] = {0x7, 0};
+
+const struct regmap_config mma7455_core_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = MMA7455_REG_TW,
+};
+EXPORT_SYMBOL_GPL(mma7455_core_regmap);
+
+int mma7455_core_probe(struct device *dev, struct regmap *regmap,
+		       const char *name)
+{
+	struct mma7455_data *mma7455;
+	struct iio_dev *indio_dev;
+	unsigned int reg;
+	int ret;
+
+	ret = regmap_read(regmap, MMA7455_REG_WHOAMI, &reg);
+	if (ret) {
+		dev_err(dev, "unable to read reg\n");
+		return ret;
+	}
+
+	if (reg != MMA7455_WHOAMI_ID) {
+		dev_err(dev, "device id mismatch\n");
+		return -ENODEV;
+	}
+
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*mma7455));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, indio_dev);
+	mma7455 = iio_priv(indio_dev);
+	mma7455->regmap = regmap;
+	mma7455->dev = dev;
+
+	indio_dev->info = &mma7455_info;
+	indio_dev->name = name;
+	indio_dev->dev.parent = dev;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = mma7455_channels;
+	indio_dev->num_channels = ARRAY_SIZE(mma7455_channels);
+	indio_dev->available_scan_masks = mma7455_scan_masks;
+
+	regmap_write(mma7455->regmap, MMA7455_REG_MCTL,
+		     MMA7455_MCTL_MODE_MEASURE);
+
+	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+					 mma7455_trigger_handler, NULL);
+	if (ret) {
+		dev_err(dev, "unable to setup triggered buffer\n");
+		return ret;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(dev, "unable to register device\n");
+		iio_triggered_buffer_cleanup(indio_dev);
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mma7455_core_probe);
+
+int mma7455_core_remove(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct mma7455_data *mma7455 = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+
+	regmap_write(mma7455->regmap, MMA7455_REG_MCTL,
+		     MMA7455_MCTL_MODE_STANDBY);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mma7455_core_remove);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L core accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c
new file mode 100644
index 000000000000..3cab5fb4a3c4
--- /dev/null
+++ b/drivers/iio/accel/mma7455_i2c.c
@@ -0,0 +1,56 @@
+/*
+ * IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "mma7455.h"
+
+static int mma7455_i2c_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
+{
+	struct regmap *regmap;
+	const char *name = NULL;
+
+	regmap = devm_regmap_init_i2c(i2c, &mma7455_core_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	if (id)
+		name = id->name;
+
+	return mma7455_core_probe(&i2c->dev, regmap, name);
+}
+
+static int mma7455_i2c_remove(struct i2c_client *i2c)
+{
+	return mma7455_core_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id mma7455_i2c_ids[] = {
+	{ "mma7455", 0 },
+	{ "mma7456", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids);
+
+static struct i2c_driver mma7455_i2c_driver = {
+	.probe = mma7455_i2c_probe,
+	.remove = mma7455_i2c_remove,
+	.id_table = mma7455_i2c_ids,
+	.driver = {
+		.name	= "mma7455-i2c",
+	},
+};
+module_i2c_driver(mma7455_i2c_driver);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L I2C accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma7455_spi.c b/drivers/iio/accel/mma7455_spi.c
new file mode 100644
index 000000000000..79df8f27cf99
--- /dev/null
+++ b/drivers/iio/accel/mma7455_spi.c
@@ -0,0 +1,52 @@
+/*
+ * IIO accel SPI driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "mma7455.h"
+
+static int mma7455_spi_probe(struct spi_device *spi)
+{
+	const struct spi_device_id *id = spi_get_device_id(spi);
+	struct regmap *regmap;
+
+	regmap = devm_regmap_init_spi(spi, &mma7455_core_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return mma7455_core_probe(&spi->dev, regmap, id->name);
+}
+
+static int mma7455_spi_remove(struct spi_device *spi)
+{
+	return mma7455_core_remove(&spi->dev);
+}
+
+static const struct spi_device_id mma7455_spi_ids[] = {
+	{ "mma7455", 0 },
+	{ "mma7456", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, mma7455_spi_ids);
+
+static struct spi_driver mma7455_spi_driver = {
+	.probe = mma7455_spi_probe,
+	.remove = mma7455_spi_remove,
+	.id_table = mma7455_spi_ids,
+	.driver = {
+		.name = "mma7455-spi",
+	},
+};
+module_spi_driver(mma7455_spi_driver);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L SPI accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 1eccc2dcf14c..ccc632a7cf01 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -29,6 +29,7 @@
 #include <linux/iio/events.h>
 #include <linux/delay.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 
 #define MMA8452_STATUS				0x00
 #define  MMA8452_STATUS_DRDY			(BIT(2) | BIT(1) | BIT(0))
@@ -57,7 +58,6 @@
 #define MMA8452_FF_MT_COUNT			0x18
 #define MMA8452_TRANSIENT_CFG			0x1d
 #define  MMA8452_TRANSIENT_CFG_HPF_BYP		BIT(0)
-#define  MMA8452_TRANSIENT_CFG_CHAN(chan)	BIT(chan + 1)
 #define  MMA8452_TRANSIENT_CFG_ELE		BIT(4)
 #define MMA8452_TRANSIENT_SRC			0x1e
 #define  MMA8452_TRANSIENT_SRC_XTRANSE		BIT(1)
@@ -143,6 +143,13 @@ struct mma_chip_info {
 	u8 ev_count;
 };
 
+enum {
+	idx_x,
+	idx_y,
+	idx_z,
+	idx_ts,
+};
+
 static int mma8452_drdy(struct mma8452_data *data)
 {
 	int tries = 150;
@@ -816,31 +823,31 @@ static struct attribute_group mma8452_event_attribute_group = {
 }
 
 static const struct iio_chan_spec mma8452_channels[] = {
-	MMA8452_CHANNEL(X, 0, 12),
-	MMA8452_CHANNEL(Y, 1, 12),
-	MMA8452_CHANNEL(Z, 2, 12),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
+	MMA8452_CHANNEL(X, idx_x, 12),
+	MMA8452_CHANNEL(Y, idx_y, 12),
+	MMA8452_CHANNEL(Z, idx_z, 12),
+	IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
 };
 
 static const struct iio_chan_spec mma8453_channels[] = {
-	MMA8452_CHANNEL(X, 0, 10),
-	MMA8452_CHANNEL(Y, 1, 10),
-	MMA8452_CHANNEL(Z, 2, 10),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
+	MMA8452_CHANNEL(X, idx_x, 10),
+	MMA8452_CHANNEL(Y, idx_y, 10),
+	MMA8452_CHANNEL(Z, idx_z, 10),
+	IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
 };
 
 static const struct iio_chan_spec mma8652_channels[] = {
-	MMA8652_CHANNEL(X, 0, 12),
-	MMA8652_CHANNEL(Y, 1, 12),
-	MMA8652_CHANNEL(Z, 2, 12),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
+	MMA8652_CHANNEL(X, idx_x, 12),
+	MMA8652_CHANNEL(Y, idx_y, 12),
+	MMA8652_CHANNEL(Z, idx_z, 12),
+	IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
 };
 
 static const struct iio_chan_spec mma8653_channels[] = {
-	MMA8652_CHANNEL(X, 0, 10),
-	MMA8652_CHANNEL(Y, 1, 10),
-	MMA8652_CHANNEL(Z, 2, 10),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
+	MMA8652_CHANNEL(X, idx_x, 10),
+	MMA8652_CHANNEL(Y, idx_y, 10),
+	MMA8652_CHANNEL(Z, idx_z, 10),
+	IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
 };
 
 enum {
@@ -1130,13 +1137,21 @@ static int mma8452_probe(struct i2c_client *client,
 					   MMA8452_INT_FF_MT;
 		int enabled_interrupts = MMA8452_INT_TRANS |
 					 MMA8452_INT_FF_MT;
+		int irq2;
 
-		/* Assume wired to INT1 pin */
-		ret = i2c_smbus_write_byte_data(client,
-						MMA8452_CTRL_REG5,
-						supported_interrupts);
-		if (ret < 0)
-			return ret;
+		irq2 = of_irq_get_byname(client->dev.of_node, "INT2");
+
+		if (irq2 == client->irq) {
+			dev_dbg(&client->dev, "using interrupt line INT2\n");
+		} else {
+			ret = i2c_smbus_write_byte_data(client,
+							MMA8452_CTRL_REG5,
+							supported_interrupts);
+			if (ret < 0)
+				return ret;
+
+			dev_dbg(&client->dev, "using interrupt line INT1\n");
+		}
 
 		ret = i2c_smbus_write_byte_data(client,
 						MMA8452_CTRL_REG4,
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 7db7cc0bf362..d899a4d4307f 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -495,25 +495,23 @@ static int mma9551_probe(struct i2c_client *client,
 	if (ret < 0)
 		goto out_poweroff;
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(&client->dev, "unable to register iio device\n");
-		goto out_poweroff;
-	}
-
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret < 0)
-		goto out_iio_unregister;
+		goto out_poweroff;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev,
 					 MMA9551_AUTO_SUSPEND_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to register iio device\n");
+		goto out_poweroff;
+	}
+
 	return 0;
 
-out_iio_unregister:
-	iio_device_unregister(indio_dev);
 out_poweroff:
 	mma9551_set_device_state(client, false);
 
@@ -525,11 +523,12 @@ static int mma9551_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct mma9551_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(indio_dev);
 	mutex_lock(&data->mutex);
 	mma9551_set_device_state(data->client, false);
 	mutex_unlock(&data->mutex);
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 9408ef3add58..fa7d36217c4b 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1133,27 +1133,24 @@ static int mma9553_probe(struct i2c_client *client,
 		}
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(&client->dev, "unable to register iio device\n");
-		goto out_poweroff;
-	}
-
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret < 0)
-		goto out_iio_unregister;
+		goto out_poweroff;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev,
 					 MMA9551_AUTO_SUSPEND_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
-	dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to register iio device\n");
+		goto out_poweroff;
+	}
 
+	dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
 	return 0;
 
-out_iio_unregister:
-	iio_device_unregister(indio_dev);
 out_poweroff:
 	mma9551_set_device_state(client, false);
 	return ret;
@@ -1164,11 +1161,12 @@ static int mma9553_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct mma9553_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(indio_dev);
 	mutex_lock(&data->mutex);
 	mma9551_set_device_state(data->client, false);
 	mutex_unlock(&data->mutex);
diff --git a/drivers/iio/accel/mxc6255.c b/drivers/iio/accel/mxc6255.c
new file mode 100644
index 000000000000..97ccde722e7b
--- /dev/null
+++ b/drivers/iio/accel/mxc6255.c
@@ -0,0 +1,198 @@
+/*
+ * MXC6255 - MEMSIC orientation sensing accelerometer
+ *
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for MXC6255 (7-bit I2C slave address 0x15).
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/iio/iio.h>
+#include <linux/delay.h>
+#include <linux/acpi.h>
+#include <linux/regmap.h>
+#include <linux/iio/sysfs.h>
+
+#define MXC6255_DRV_NAME		"mxc6255"
+#define MXC6255_REGMAP_NAME		"mxc6255_regmap"
+
+#define MXC6255_REG_XOUT		0x00
+#define MXC6255_REG_YOUT		0x01
+#define MXC6255_REG_CHIP_ID		0x08
+
+#define MXC6255_CHIP_ID			0x05
+
+/*
+ * MXC6255 has only one measurement range: +/- 2G.
+ * The acceleration output is an 8-bit value.
+ *
+ * Scale is calculated as follows:
+ * (2 + 2) * 9.80665 / (2^8 - 1) = 0.153829
+ *
+ * Scale value for +/- 2G measurement range
+ */
+#define MXC6255_SCALE			153829
+
+enum mxc6255_axis {
+	AXIS_X,
+	AXIS_Y,
+};
+
+struct mxc6255_data {
+	struct i2c_client *client;
+	struct regmap *regmap;
+};
+
+static int mxc6255_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long mask)
+{
+	struct mxc6255_data *data = iio_priv(indio_dev);
+	unsigned int reg;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = regmap_read(data->regmap, chan->address, &reg);
+		if (ret < 0) {
+			dev_err(&data->client->dev,
+				"Error reading reg %lu\n", chan->address);
+			return ret;
+		}
+
+		*val = sign_extend32(reg, 7);
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = MXC6255_SCALE;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info mxc6255_info = {
+	.driver_module	= THIS_MODULE,
+	.read_raw	= mxc6255_read_raw,
+};
+
+#define MXC6255_CHANNEL(_axis, reg) {				\
+	.type = IIO_ACCEL,					\
+	.modified = 1,						\
+	.channel2 = IIO_MOD_##_axis,				\
+	.address = reg,						\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+}
+
+static const struct iio_chan_spec mxc6255_channels[] = {
+	MXC6255_CHANNEL(X, MXC6255_REG_XOUT),
+	MXC6255_CHANNEL(Y, MXC6255_REG_YOUT),
+};
+
+static bool mxc6255_is_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MXC6255_REG_XOUT:
+	case MXC6255_REG_YOUT:
+	case MXC6255_REG_CHIP_ID:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config mxc6255_regmap_config = {
+	.name = MXC6255_REGMAP_NAME,
+
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.readable_reg = mxc6255_is_readable_reg,
+};
+
+static int mxc6255_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct mxc6255_data *data;
+	struct iio_dev *indio_dev;
+	struct regmap *regmap;
+	unsigned int chip_id;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	regmap = devm_regmap_init_i2c(client, &mxc6255_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(&client->dev, "Error initializing regmap\n");
+		return PTR_ERR(regmap);
+	}
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	data->regmap = regmap;
+
+	indio_dev->name = MXC6255_DRV_NAME;
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->channels = mxc6255_channels;
+	indio_dev->num_channels = ARRAY_SIZE(mxc6255_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &mxc6255_info;
+
+	ret = regmap_read(data->regmap, MXC6255_REG_CHIP_ID, &chip_id);
+	if (ret < 0) {
+		dev_err(&client->dev, "Error reading chip id %d\n", ret);
+		return ret;
+	}
+
+	if (chip_id != MXC6255_CHIP_ID) {
+		dev_err(&client->dev, "Invalid chip id %x\n", chip_id);
+		return -ENODEV;
+	}
+
+	dev_dbg(&client->dev, "Chip id %x\n", chip_id);
+
+	ret = devm_iio_device_register(&client->dev, indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "Could not register IIO device\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct acpi_device_id mxc6255_acpi_match[] = {
+	{"MXC6255",	0},
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, mxc6255_acpi_match);
+
+static const struct i2c_device_id mxc6255_id[] = {
+	{"mxc6255",	0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mxc6255_id);
+
+static struct i2c_driver mxc6255_driver = {
+	.driver = {
+		.name = MXC6255_DRV_NAME,
+		.acpi_match_table = ACPI_PTR(mxc6255_acpi_match),
+	},
+	.probe		= mxc6255_probe,
+	.id_table	= mxc6255_id,
+};
+
+module_i2c_driver(mxc6255_driver);
+
+MODULE_AUTHOR("Teodora Baluta <teodora.baluta@intel.com>");
+MODULE_DESCRIPTION("MEMSIC MXC6255 orientation sensing accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 468f21fa2950..5d4a1897b293 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -27,6 +27,7 @@
 #define LSM303DLM_ACCEL_DEV_NAME	"lsm303dlm_accel"
 #define LSM330_ACCEL_DEV_NAME		"lsm330_accel"
 #define LSM303AGR_ACCEL_DEV_NAME	"lsm303agr_accel"
+#define LIS2DH12_ACCEL_DEV_NAME		"lis2dh12_accel"
 
 /**
 * struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 197a08b4e2f3..70f042797f15 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -232,6 +232,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			[3] = LSM330DL_ACCEL_DEV_NAME,
 			[4] = LSM330DLC_ACCEL_DEV_NAME,
 			[5] = LSM303AGR_ACCEL_DEV_NAME,
+			[6] = LIS2DH12_ACCEL_DEV_NAME,
 		},
 		.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
 		.odr = {
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 8b9cc84fd44f..294a32f89367 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -72,6 +72,10 @@ static const struct of_device_id st_accel_of_match[] = {
 		.compatible = "st,lsm303agr-accel",
 		.data = LSM303AGR_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,lis2dh12-accel",
+		.data = LIS2DH12_ACCEL_DEV_NAME,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -121,6 +125,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
 	{ LSM303DLM_ACCEL_DEV_NAME },
 	{ LSM330_ACCEL_DEV_NAME },
 	{ LSM303AGR_ACCEL_DEV_NAME },
+	{ LIS2DH12_ACCEL_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index f71b0d391272..fcd5847a3fd3 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -58,6 +58,7 @@ static const struct spi_device_id st_accel_id_table[] = {
 	{ LSM303DLM_ACCEL_DEV_NAME },
 	{ LSM330_ACCEL_DEV_NAME },
 	{ LSM303AGR_ACCEL_DEV_NAME },
+	{ LIS2DH12_ACCEL_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 7868c744fd4b..605ff42c4631 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -194,6 +194,25 @@ config HI8435
 	  This driver can also be built as a module. If so, the module will be
 	  called hi8435.
 
+config INA2XX_ADC
+	tristate "Texas Instruments INA2xx Power Monitors IIO driver"
+	depends on I2C && !SENSORS_INA2XX
+	select REGMAP_I2C
+	select IIO_BUFFER
+	select IIO_KFIFO_BUF
+	help
+	  Say yes here to build support for TI INA2xx family of Power Monitors.
+	  This driver is mutually exclusive with the HWMON version.
+
+config IMX7D_ADC
+	tristate "IMX7D ADC driver"
+	depends on ARCH_MXC || COMPILE_TEST
+	help
+	  Say yes here to build support for IMX7D ADC.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called imx7d_adc.
+
 config LP8788_ADC
 	tristate "LP8788 ADC driver"
 	depends on MFD_LP8788
@@ -275,6 +294,14 @@ config NAU7802
 	  To compile this driver as a module, choose M here: the
 	  module will be called nau7802.
 
+config PALMAS_GPADC
+	tristate "TI Palmas General Purpose ADC"
+	depends on MFD_PALMAS
+	help
+	  Palmas series pmic chip by Texas Instruments (twl6035/6037)
+	  is used in smartphones and tablets and supports a 16 channel
+	  general purpose ADC.
+
 config QCOM_SPMI_IADC
 	tristate "Qualcomm SPMI PMIC current ADC"
 	depends on SPMI
@@ -324,15 +351,25 @@ config TI_ADC081C
 	  called ti-adc081c.
 
 config TI_ADC128S052
-	tristate "Texas Instruments ADC128S052/ADC122S021"
+	tristate "Texas Instruments ADC128S052/ADC122S021/ADC124S021"
 	depends on SPI
 	help
-	  If you say yes here you get support for Texas Instruments ADC128S052
-	  and ADC122S021 chips.
+	  If you say yes here you get support for Texas Instruments ADC128S052,
+	  ADC122S021 and ADC124S021 chips.
 
 	  This driver can also be built as a module. If so, the module will be
 	  called ti-adc128s052.
 
+config TI_ADS8688
+	tristate "Texas Instruments ADS8688"
+	depends on SPI && OF
+	help
+	  If you say yes here you get support for Texas Instruments ADS8684 and
+	  and ADS8688 ADC chips
+
+	  This driver can also be built as a module. If so, the module will be
+	  called ti-ads8688.
+
 config TI_AM335X_ADC
 	tristate "TI's AM335X ADC driver"
 	depends on MFD_TI_AM335X_TSCADC
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 99b37a963a1e..6435780e9b71 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -20,6 +20,8 @@ obj-$(CONFIG_CC10001_ADC) += cc10001_adc.o
 obj-$(CONFIG_DA9150_GPADC) += da9150-gpadc.o
 obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
 obj-$(CONFIG_HI8435) += hi8435.o
+obj-$(CONFIG_IMX7D_ADC) += imx7d_adc.o
+obj-$(CONFIG_INA2XX_ADC) += ina2xx-adc.o
 obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
 obj-$(CONFIG_MAX1027) += max1027.o
 obj-$(CONFIG_MAX1363) += max1363.o
@@ -27,11 +29,13 @@ obj-$(CONFIG_MCP320X) += mcp320x.o
 obj-$(CONFIG_MCP3422) += mcp3422.o
 obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o
 obj-$(CONFIG_NAU7802) += nau7802.o
+obj-$(CONFIG_PALMAS_GPADC) += palmas_gpadc.o
 obj-$(CONFIG_QCOM_SPMI_IADC) += qcom-spmi-iadc.o
 obj-$(CONFIG_QCOM_SPMI_VADC) += qcom-spmi-vadc.o
 obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o
 obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
 obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o
+obj-$(CONFIG_TI_ADS8688) += ti-ads8688.o
 obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o
 obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o
 obj-$(CONFIG_TWL6030_GPADC) += twl6030-gpadc.o
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 4d960d3b93c0..7b07bb651671 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -478,10 +478,9 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 				*val2 = st->
 					scale_avail[(st->conf >> 8) & 0x7][1];
 				return IIO_VAL_INT_PLUS_NANO;
-			} else {
-				/* 1170mV / 2^23 * 6 */
-				scale_uv = (1170ULL * 1000000000ULL * 6ULL);
 			}
+			/* 1170mV / 2^23 * 6 */
+			scale_uv = (1170ULL * 1000000000ULL * 6ULL);
 			break;
 		case IIO_TEMP:
 				/* 1170mV / 0.81 mV/C / 2^23 */
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 7b40925dd4ff..f284cd6a93d6 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -742,7 +742,7 @@ static int at91_adc_of_get_resolution(struct at91_adc_state *st,
 		return count;
 	}
 
-	resolutions = kmalloc(count * sizeof(*resolutions), GFP_KERNEL);
+	resolutions = kmalloc_array(count, sizeof(*resolutions), GFP_KERNEL);
 	if (!resolutions)
 		return -ENOMEM;
 
diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c
new file mode 100644
index 000000000000..e2241ee94783
--- /dev/null
+++ b/drivers/iio/adc/imx7d_adc.c
@@ -0,0 +1,609 @@
+/*
+ * Freescale i.MX7D ADC driver
+ *
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/driver.h>
+#include <linux/iio/sysfs.h>
+
+/* ADC register */
+#define IMX7D_REG_ADC_CH_A_CFG1			0x00
+#define IMX7D_REG_ADC_CH_A_CFG2			0x10
+#define IMX7D_REG_ADC_CH_B_CFG1			0x20
+#define IMX7D_REG_ADC_CH_B_CFG2			0x30
+#define IMX7D_REG_ADC_CH_C_CFG1			0x40
+#define IMX7D_REG_ADC_CH_C_CFG2			0x50
+#define IMX7D_REG_ADC_CH_D_CFG1			0x60
+#define IMX7D_REG_ADC_CH_D_CFG2			0x70
+#define IMX7D_REG_ADC_CH_SW_CFG			0x80
+#define IMX7D_REG_ADC_TIMER_UNIT		0x90
+#define IMX7D_REG_ADC_DMA_FIFO			0xa0
+#define IMX7D_REG_ADC_FIFO_STATUS		0xb0
+#define IMX7D_REG_ADC_INT_SIG_EN		0xc0
+#define IMX7D_REG_ADC_INT_EN			0xd0
+#define IMX7D_REG_ADC_INT_STATUS		0xe0
+#define IMX7D_REG_ADC_CHA_B_CNV_RSLT		0xf0
+#define IMX7D_REG_ADC_CHC_D_CNV_RSLT		0x100
+#define IMX7D_REG_ADC_CH_SW_CNV_RSLT		0x110
+#define IMX7D_REG_ADC_DMA_FIFO_DAT		0x120
+#define IMX7D_REG_ADC_ADC_CFG			0x130
+
+#define IMX7D_REG_ADC_CHANNEL_CFG2_BASE		0x10
+#define IMX7D_EACH_CHANNEL_REG_OFFSET		0x20
+
+#define IMX7D_REG_ADC_CH_CFG1_CHANNEL_EN			(0x1 << 31)
+#define IMX7D_REG_ADC_CH_CFG1_CHANNEL_SINGLE			BIT(30)
+#define IMX7D_REG_ADC_CH_CFG1_CHANNEL_AVG_EN			BIT(29)
+#define IMX7D_REG_ADC_CH_CFG1_CHANNEL_SEL(x)			((x) << 24)
+
+#define IMX7D_REG_ADC_CH_CFG2_AVG_NUM_4				(0x0 << 12)
+#define IMX7D_REG_ADC_CH_CFG2_AVG_NUM_8				(0x1 << 12)
+#define IMX7D_REG_ADC_CH_CFG2_AVG_NUM_16			(0x2 << 12)
+#define IMX7D_REG_ADC_CH_CFG2_AVG_NUM_32			(0x3 << 12)
+
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_4			(0x0 << 29)
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_8			(0x1 << 29)
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_16			(0x2 << 29)
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_32			(0x3 << 29)
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_64			(0x4 << 29)
+#define IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_128			(0x5 << 29)
+
+#define IMX7D_REG_ADC_ADC_CFG_ADC_CLK_DOWN			BIT(31)
+#define IMX7D_REG_ADC_ADC_CFG_ADC_POWER_DOWN			BIT(1)
+#define IMX7D_REG_ADC_ADC_CFG_ADC_EN				BIT(0)
+
+#define IMX7D_REG_ADC_INT_CHA_COV_INT_EN			BIT(8)
+#define IMX7D_REG_ADC_INT_CHB_COV_INT_EN			BIT(9)
+#define IMX7D_REG_ADC_INT_CHC_COV_INT_EN			BIT(10)
+#define IMX7D_REG_ADC_INT_CHD_COV_INT_EN			BIT(11)
+#define IMX7D_REG_ADC_INT_CHANNEL_INT_EN \
+	(IMX7D_REG_ADC_INT_CHA_COV_INT_EN | \
+	 IMX7D_REG_ADC_INT_CHB_COV_INT_EN | \
+	 IMX7D_REG_ADC_INT_CHC_COV_INT_EN | \
+	 IMX7D_REG_ADC_INT_CHD_COV_INT_EN)
+#define IMX7D_REG_ADC_INT_STATUS_CHANNEL_INT_STATUS		0xf00
+#define IMX7D_REG_ADC_INT_STATUS_CHANNEL_CONV_TIME_OUT		0xf0000
+
+#define IMX7D_ADC_TIMEOUT		msecs_to_jiffies(100)
+
+enum imx7d_adc_clk_pre_div {
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_4,
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_8,
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_16,
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_32,
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_64,
+	IMX7D_ADC_ANALOG_CLK_PRE_DIV_128,
+};
+
+enum imx7d_adc_average_num {
+	IMX7D_ADC_AVERAGE_NUM_4,
+	IMX7D_ADC_AVERAGE_NUM_8,
+	IMX7D_ADC_AVERAGE_NUM_16,
+	IMX7D_ADC_AVERAGE_NUM_32,
+};
+
+struct imx7d_adc_feature {
+	enum imx7d_adc_clk_pre_div clk_pre_div;
+	enum imx7d_adc_average_num avg_num;
+
+	u32 core_time_unit;	/* impact the sample rate */
+
+	bool average_en;
+};
+
+struct imx7d_adc {
+	struct device *dev;
+	void __iomem *regs;
+	struct clk *clk;
+
+	u32 vref_uv;
+	u32 value;
+	u32 channel;
+	u32 pre_div_num;
+
+	struct regulator *vref;
+	struct imx7d_adc_feature adc_feature;
+
+	struct completion completion;
+};
+
+struct imx7d_adc_analogue_core_clk {
+	u32 pre_div;
+	u32 reg_config;
+};
+
+#define IMX7D_ADC_ANALOGUE_CLK_CONFIG(_pre_div, _reg_conf) {	\
+	.pre_div = (_pre_div),					\
+	.reg_config = (_reg_conf),				\
+}
+
+static const struct imx7d_adc_analogue_core_clk imx7d_adc_analogue_clk[] = {
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(4, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_4),
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(8, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_8),
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(16, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_16),
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(32, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_32),
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(64, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_64),
+	IMX7D_ADC_ANALOGUE_CLK_CONFIG(128, IMX7D_REG_ADC_TIMER_UNIT_PRE_DIV_128),
+};
+
+#define IMX7D_ADC_CHAN(_idx) {					\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.channel = (_idx),					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
+				BIT(IIO_CHAN_INFO_SAMP_FREQ),	\
+}
+
+static const struct iio_chan_spec imx7d_adc_iio_channels[] = {
+	IMX7D_ADC_CHAN(0),
+	IMX7D_ADC_CHAN(1),
+	IMX7D_ADC_CHAN(2),
+	IMX7D_ADC_CHAN(3),
+	IMX7D_ADC_CHAN(4),
+	IMX7D_ADC_CHAN(5),
+	IMX7D_ADC_CHAN(6),
+	IMX7D_ADC_CHAN(7),
+	IMX7D_ADC_CHAN(8),
+	IMX7D_ADC_CHAN(9),
+	IMX7D_ADC_CHAN(10),
+	IMX7D_ADC_CHAN(11),
+	IMX7D_ADC_CHAN(12),
+	IMX7D_ADC_CHAN(13),
+	IMX7D_ADC_CHAN(14),
+	IMX7D_ADC_CHAN(15),
+};
+
+static const u32 imx7d_adc_average_num[] = {
+	IMX7D_REG_ADC_CH_CFG2_AVG_NUM_4,
+	IMX7D_REG_ADC_CH_CFG2_AVG_NUM_8,
+	IMX7D_REG_ADC_CH_CFG2_AVG_NUM_16,
+	IMX7D_REG_ADC_CH_CFG2_AVG_NUM_32,
+};
+
+static void imx7d_adc_feature_config(struct imx7d_adc *info)
+{
+	info->adc_feature.clk_pre_div = IMX7D_ADC_ANALOG_CLK_PRE_DIV_4;
+	info->adc_feature.avg_num = IMX7D_ADC_AVERAGE_NUM_32;
+	info->adc_feature.core_time_unit = 1;
+	info->adc_feature.average_en = true;
+}
+
+static void imx7d_adc_sample_rate_set(struct imx7d_adc *info)
+{
+	struct imx7d_adc_feature *adc_feature = &info->adc_feature;
+	struct imx7d_adc_analogue_core_clk adc_analogure_clk;
+	u32 i;
+	u32 tmp_cfg1;
+	u32 sample_rate = 0;
+
+	/*
+	 * Before sample set, disable channel A,B,C,D. Here we
+	 * clear the bit 31 of register REG_ADC_CH_A\B\C\D_CFG1.
+	 */
+	for (i = 0; i < 4; i++) {
+		tmp_cfg1 =
+			readl(info->regs + i * IMX7D_EACH_CHANNEL_REG_OFFSET);
+		tmp_cfg1 &= ~IMX7D_REG_ADC_CH_CFG1_CHANNEL_EN;
+		writel(tmp_cfg1,
+		       info->regs + i * IMX7D_EACH_CHANNEL_REG_OFFSET);
+	}
+
+	adc_analogure_clk = imx7d_adc_analogue_clk[adc_feature->clk_pre_div];
+	sample_rate |= adc_analogure_clk.reg_config;
+	info->pre_div_num = adc_analogure_clk.pre_div;
+
+	sample_rate |= adc_feature->core_time_unit;
+	writel(sample_rate, info->regs + IMX7D_REG_ADC_TIMER_UNIT);
+}
+
+static void imx7d_adc_hw_init(struct imx7d_adc *info)
+{
+	u32 cfg;
+
+	/* power up and enable adc analogue core */
+	cfg = readl(info->regs + IMX7D_REG_ADC_ADC_CFG);
+	cfg &= ~(IMX7D_REG_ADC_ADC_CFG_ADC_CLK_DOWN |
+		 IMX7D_REG_ADC_ADC_CFG_ADC_POWER_DOWN);
+	cfg |= IMX7D_REG_ADC_ADC_CFG_ADC_EN;
+	writel(cfg, info->regs + IMX7D_REG_ADC_ADC_CFG);
+
+	/* enable channel A,B,C,D interrupt */
+	writel(IMX7D_REG_ADC_INT_CHANNEL_INT_EN,
+	       info->regs + IMX7D_REG_ADC_INT_SIG_EN);
+	writel(IMX7D_REG_ADC_INT_CHANNEL_INT_EN,
+	       info->regs + IMX7D_REG_ADC_INT_EN);
+
+	imx7d_adc_sample_rate_set(info);
+}
+
+static void imx7d_adc_channel_set(struct imx7d_adc *info)
+{
+	u32 cfg1 = 0;
+	u32 cfg2;
+	u32 channel;
+
+	channel = info->channel;
+
+	/* the channel choose single conversion, and enable average mode */
+	cfg1 |= (IMX7D_REG_ADC_CH_CFG1_CHANNEL_EN |
+		 IMX7D_REG_ADC_CH_CFG1_CHANNEL_SINGLE);
+	if (info->adc_feature.average_en)
+		cfg1 |= IMX7D_REG_ADC_CH_CFG1_CHANNEL_AVG_EN;
+
+	/*
+	 * physical channel 0 chose logical channel A
+	 * physical channel 1 chose logical channel B
+	 * physical channel 2 chose logical channel C
+	 * physical channel 3 chose logical channel D
+	 */
+	cfg1 |= IMX7D_REG_ADC_CH_CFG1_CHANNEL_SEL(channel);
+
+	/*
+	 * read register REG_ADC_CH_A\B\C\D_CFG2, according to the
+	 * channel chosen
+	 */
+	cfg2 = readl(info->regs + IMX7D_EACH_CHANNEL_REG_OFFSET * channel +
+		     IMX7D_REG_ADC_CHANNEL_CFG2_BASE);
+
+	cfg2 |= imx7d_adc_average_num[info->adc_feature.avg_num];
+
+	/*
+	 * write the register REG_ADC_CH_A\B\C\D_CFG2, according to
+	 * the channel chosen
+	 */
+	writel(cfg2, info->regs + IMX7D_EACH_CHANNEL_REG_OFFSET * channel +
+	       IMX7D_REG_ADC_CHANNEL_CFG2_BASE);
+	writel(cfg1, info->regs + IMX7D_EACH_CHANNEL_REG_OFFSET * channel);
+}
+
+static u32 imx7d_adc_get_sample_rate(struct imx7d_adc *info)
+{
+	/* input clock is always 24MHz */
+	u32 input_clk = 24000000;
+	u32 analogue_core_clk;
+	u32 core_time_unit = info->adc_feature.core_time_unit;
+	u32 tmp;
+
+	analogue_core_clk = input_clk / info->pre_div_num;
+	tmp = (core_time_unit + 1) * 6;
+
+	return analogue_core_clk / tmp;
+}
+
+static int imx7d_adc_read_raw(struct iio_dev *indio_dev,
+			struct iio_chan_spec const *chan,
+			int *val,
+			int *val2,
+			long mask)
+{
+	struct imx7d_adc *info = iio_priv(indio_dev);
+
+	u32 channel;
+	long ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&indio_dev->mlock);
+		reinit_completion(&info->completion);
+
+		channel = chan->channel & 0x03;
+		info->channel = channel;
+		imx7d_adc_channel_set(info);
+
+		ret = wait_for_completion_interruptible_timeout
+				(&info->completion, IMX7D_ADC_TIMEOUT);
+		if (ret == 0) {
+			mutex_unlock(&indio_dev->mlock);
+			return -ETIMEDOUT;
+		}
+		if (ret < 0) {
+			mutex_unlock(&indio_dev->mlock);
+			return ret;
+		}
+
+		*val = info->value;
+		mutex_unlock(&indio_dev->mlock);
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+		info->vref_uv = regulator_get_voltage(info->vref);
+		*val = info->vref_uv / 1000;
+		*val2 = 12;
+		return IIO_VAL_FRACTIONAL_LOG2;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val = imx7d_adc_get_sample_rate(info);
+		return IIO_VAL_INT;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int imx7d_adc_read_data(struct imx7d_adc *info)
+{
+	u32 channel;
+	u32 value;
+
+	channel = info->channel & 0x03;
+
+	/*
+	 * channel A and B conversion result share one register,
+	 * bit[27~16] is the channel B conversion result,
+	 * bit[11~0] is the channel A conversion result.
+	 * channel C and D is the same.
+	 */
+	if (channel < 2)
+		value = readl(info->regs + IMX7D_REG_ADC_CHA_B_CNV_RSLT);
+	else
+		value = readl(info->regs + IMX7D_REG_ADC_CHC_D_CNV_RSLT);
+	if (channel & 0x1)	/* channel B or D */
+		value = (value >> 16) & 0xFFF;
+	else			/* channel A or C */
+		value &= 0xFFF;
+
+	return value;
+}
+
+static irqreturn_t imx7d_adc_isr(int irq, void *dev_id)
+{
+	struct imx7d_adc *info = (struct imx7d_adc *)dev_id;
+	int status;
+
+	status = readl(info->regs + IMX7D_REG_ADC_INT_STATUS);
+	if (status & IMX7D_REG_ADC_INT_STATUS_CHANNEL_INT_STATUS) {
+		info->value = imx7d_adc_read_data(info);
+		complete(&info->completion);
+
+		/*
+		 * The register IMX7D_REG_ADC_INT_STATUS can't clear
+		 * itself after read operation, need software to write
+		 * 0 to the related bit. Here we clear the channel A/B/C/D
+		 * conversion finished flag.
+		 */
+		status &= ~IMX7D_REG_ADC_INT_STATUS_CHANNEL_INT_STATUS;
+		writel(status, info->regs + IMX7D_REG_ADC_INT_STATUS);
+	}
+
+	/*
+	 * If the channel A/B/C/D conversion timeout, report it and clear these
+	 * timeout flags.
+	 */
+	if (status & IMX7D_REG_ADC_INT_STATUS_CHANNEL_CONV_TIME_OUT) {
+		pr_err("%s: ADC got conversion time out interrupt: 0x%08x\n",
+			dev_name(info->dev), status);
+		status &= ~IMX7D_REG_ADC_INT_STATUS_CHANNEL_CONV_TIME_OUT;
+		writel(status, info->regs + IMX7D_REG_ADC_INT_STATUS);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int imx7d_adc_reg_access(struct iio_dev *indio_dev,
+			unsigned reg, unsigned writeval,
+			unsigned *readval)
+{
+	struct imx7d_adc *info = iio_priv(indio_dev);
+
+	if (!readval || reg % 4 || reg > IMX7D_REG_ADC_ADC_CFG)
+		return -EINVAL;
+
+	*readval = readl(info->regs + reg);
+
+	return 0;
+}
+
+static const struct iio_info imx7d_adc_iio_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = &imx7d_adc_read_raw,
+	.debugfs_reg_access = &imx7d_adc_reg_access,
+};
+
+static const struct of_device_id imx7d_adc_match[] = {
+	{ .compatible = "fsl,imx7d-adc", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx7d_adc_match);
+
+static void imx7d_adc_power_down(struct imx7d_adc *info)
+{
+	u32 adc_cfg;
+
+	adc_cfg = readl(info->regs + IMX7D_REG_ADC_ADC_CFG);
+	adc_cfg |= IMX7D_REG_ADC_ADC_CFG_ADC_CLK_DOWN |
+		   IMX7D_REG_ADC_ADC_CFG_ADC_POWER_DOWN;
+	adc_cfg &= ~IMX7D_REG_ADC_ADC_CFG_ADC_EN;
+	writel(adc_cfg, info->regs + IMX7D_REG_ADC_ADC_CFG);
+}
+
+static int imx7d_adc_probe(struct platform_device *pdev)
+{
+	struct imx7d_adc *info;
+	struct iio_dev *indio_dev;
+	struct resource *mem;
+	int irq;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
+	if (!indio_dev) {
+		dev_err(&pdev->dev, "Failed allocating iio device\n");
+		return -ENOMEM;
+	}
+
+	info = iio_priv(indio_dev);
+	info->dev = &pdev->dev;
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	info->regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(info->regs)) {
+		ret = PTR_ERR(info->regs);
+		dev_err(&pdev->dev,
+			"Failed to remap adc memory, err = %d\n", ret);
+		return ret;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "No irq resource?\n");
+		return irq;
+	}
+
+	info->clk = devm_clk_get(&pdev->dev, "adc");
+	if (IS_ERR(info->clk)) {
+		ret = PTR_ERR(info->clk);
+		dev_err(&pdev->dev, "Failed getting clock, err = %d\n", ret);
+		return ret;
+	}
+
+	info->vref = devm_regulator_get(&pdev->dev, "vref");
+	if (IS_ERR(info->vref)) {
+		ret = PTR_ERR(info->vref);
+		dev_err(&pdev->dev,
+			"Failed getting reference voltage, err = %d\n", ret);
+		return ret;
+	}
+
+	ret = regulator_enable(info->vref);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Can't enable adc reference top voltage, err = %d\n",
+			ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, indio_dev);
+
+	init_completion(&info->completion);
+
+	indio_dev->name = dev_name(&pdev->dev);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &imx7d_adc_iio_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = imx7d_adc_iio_channels;
+	indio_dev->num_channels = ARRAY_SIZE(imx7d_adc_iio_channels);
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Could not prepare or enable the clock.\n");
+		goto error_adc_clk_enable;
+	}
+
+	ret = devm_request_irq(info->dev, irq,
+				imx7d_adc_isr, 0,
+				dev_name(&pdev->dev), info);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed requesting irq, irq = %d\n", irq);
+		goto error_iio_device_register;
+	}
+
+	imx7d_adc_feature_config(info);
+	imx7d_adc_hw_init(info);
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		imx7d_adc_power_down(info);
+		dev_err(&pdev->dev, "Couldn't register the device.\n");
+		goto error_iio_device_register;
+	}
+
+	return 0;
+
+error_iio_device_register:
+	clk_disable_unprepare(info->clk);
+error_adc_clk_enable:
+	regulator_disable(info->vref);
+
+	return ret;
+}
+
+static int imx7d_adc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct imx7d_adc *info = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	imx7d_adc_power_down(info);
+
+	clk_disable_unprepare(info->clk);
+	regulator_disable(info->vref);
+
+	return 0;
+}
+
+static int __maybe_unused imx7d_adc_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct imx7d_adc *info = iio_priv(indio_dev);
+
+	imx7d_adc_power_down(info);
+
+	clk_disable_unprepare(info->clk);
+	regulator_disable(info->vref);
+
+	return 0;
+}
+
+static int __maybe_unused imx7d_adc_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct imx7d_adc *info = iio_priv(indio_dev);
+	int ret;
+
+	ret = regulator_enable(info->vref);
+	if (ret) {
+		dev_err(info->dev,
+			"Can't enable adc reference top voltage, err = %d\n",
+			ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret) {
+		dev_err(info->dev,
+			"Could not prepare or enable clock.\n");
+		regulator_disable(info->vref);
+		return ret;
+	}
+
+	imx7d_adc_hw_init(info);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(imx7d_adc_pm_ops, imx7d_adc_suspend, imx7d_adc_resume);
+
+static struct platform_driver imx7d_adc_driver = {
+	.probe		= imx7d_adc_probe,
+	.remove		= imx7d_adc_remove,
+	.driver		= {
+		.name	= "imx7d_adc",
+		.of_match_table = imx7d_adc_match,
+		.pm	= &imx7d_adc_pm_ops,
+	},
+};
+
+module_platform_driver(imx7d_adc_driver);
+
+MODULE_AUTHOR("Haibo Chen <haibo.chen@freescale.com>");
+MODULE_DESCRIPTION("Freeacale IMX7D ADC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
new file mode 100644
index 000000000000..d803e5018a42
--- /dev/null
+++ b/drivers/iio/adc/ina2xx-adc.c
@@ -0,0 +1,745 @@
+/*
+ * INA2XX Current and Power Monitors
+ *
+ * Copyright 2015 Baylibre SAS.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on linux/drivers/iio/adc/ad7291.c
+ * Copyright 2010-2011 Analog Devices Inc.
+ *
+ * Based on linux/drivers/hwmon/ina2xx.c
+ * Copyright 2012 Lothar Felten <l-felten@ti.com>
+ *
+ * Licensed under the GPL-2 or later.
+ *
+ * IIO driver for INA219-220-226-230-231
+ *
+ * Configurable 7-bit I2C slave address from 0x40 to 0x4F
+ */
+#include <linux/module.h>
+#include <linux/kthread.h>
+#include <linux/delay.h>
+#include <linux/iio/kfifo_buf.h>
+#include <linux/iio/sysfs.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/platform_data/ina2xx.h>
+
+#include <linux/util_macros.h>
+
+/* INA2XX registers definition */
+#define INA2XX_CONFIG                   0x00
+#define INA2XX_SHUNT_VOLTAGE            0x01	/* readonly */
+#define INA2XX_BUS_VOLTAGE              0x02	/* readonly */
+#define INA2XX_POWER                    0x03	/* readonly */
+#define INA2XX_CURRENT                  0x04	/* readonly */
+#define INA2XX_CALIBRATION              0x05
+
+#define INA226_ALERT_MASK		0x06
+#define INA266_CVRF			BIT(3)
+
+#define INA2XX_MAX_REGISTERS            8
+
+/* settings - depend on use case */
+#define INA219_CONFIG_DEFAULT           0x399F	/* PGA=8 */
+#define INA226_CONFIG_DEFAULT           0x4327
+#define INA226_DEFAULT_AVG              4
+#define INA226_DEFAULT_IT		1110
+
+#define INA2XX_RSHUNT_DEFAULT           10000
+
+/*
+ * bit mask for reading the averaging setting in the configuration register
+ * FIXME: use regmap_fields.
+ */
+#define INA2XX_MODE_MASK	GENMASK(3, 0)
+
+#define INA226_AVG_MASK		GENMASK(11, 9)
+#define INA226_SHIFT_AVG(val)	((val) << 9)
+
+/* Integration time for VBus */
+#define INA226_ITB_MASK		GENMASK(8, 6)
+#define INA226_SHIFT_ITB(val)	((val) << 6)
+
+/* Integration time for VShunt */
+#define INA226_ITS_MASK		GENMASK(5, 3)
+#define INA226_SHIFT_ITS(val)	((val) << 3)
+
+/* Cosmetic macro giving the sampling period for a full P=UxI cycle */
+#define SAMPLING_PERIOD(c)	((c->int_time_vbus + c->int_time_vshunt) \
+				 * c->avg)
+
+static bool ina2xx_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+	return (reg == INA2XX_CONFIG) || (reg > INA2XX_CURRENT);
+}
+
+static bool ina2xx_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	return (reg != INA2XX_CONFIG);
+}
+
+static inline bool is_signed_reg(unsigned int reg)
+{
+	return (reg == INA2XX_SHUNT_VOLTAGE) || (reg == INA2XX_CURRENT);
+}
+
+static const struct regmap_config ina2xx_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.max_register = INA2XX_MAX_REGISTERS,
+	.writeable_reg = ina2xx_is_writeable_reg,
+	.volatile_reg = ina2xx_is_volatile_reg,
+};
+
+enum ina2xx_ids { ina219, ina226 };
+
+struct ina2xx_config {
+	u16 config_default;
+	int calibration_factor;
+	int shunt_div;
+	int bus_voltage_shift;
+	int bus_voltage_lsb;	/* uV */
+	int power_lsb;		/* uW */
+};
+
+struct ina2xx_chip_info {
+	struct regmap *regmap;
+	struct task_struct *task;
+	const struct ina2xx_config *config;
+	struct mutex state_lock;
+	unsigned int shunt_resistor;
+	int avg;
+	s64 prev_ns;	/* track buffer capture time, check for underruns*/
+	int int_time_vbus; /* Bus voltage integration time uS */
+	int int_time_vshunt; /* Shunt voltage integration time uS */
+	bool allow_async_readout;
+};
+
+static const struct ina2xx_config ina2xx_config[] = {
+	[ina219] = {
+		    .config_default = INA219_CONFIG_DEFAULT,
+		    .calibration_factor = 40960000,
+		    .shunt_div = 100,
+		    .bus_voltage_shift = 3,
+		    .bus_voltage_lsb = 4000,
+		    .power_lsb = 20000,
+		    },
+	[ina226] = {
+		    .config_default = INA226_CONFIG_DEFAULT,
+		    .calibration_factor = 5120000,
+		    .shunt_div = 400,
+		    .bus_voltage_shift = 0,
+		    .bus_voltage_lsb = 1250,
+		    .power_lsb = 25000,
+		    },
+};
+
+static int ina2xx_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	int ret;
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+	unsigned int regval;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = regmap_read(chip->regmap, chan->address, &regval);
+		if (ret < 0)
+			return ret;
+
+		if (is_signed_reg(chan->address))
+			*val = (s16) regval;
+		else
+			*val  = regval;
+
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		*val = chip->avg;
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_INT_TIME:
+		*val = 0;
+		if (chan->address == INA2XX_SHUNT_VOLTAGE)
+			*val2 = chip->int_time_vshunt;
+		else
+			*val2 = chip->int_time_vbus;
+
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		/*
+		 * Sample freq is read only, it is a consequence of
+		 * 1/AVG*(CT_bus+CT_shunt).
+		 */
+		*val = DIV_ROUND_CLOSEST(1000000, SAMPLING_PERIOD(chip));
+
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->address) {
+		case INA2XX_SHUNT_VOLTAGE:
+			/* processed (mV) = raw*1000/shunt_div */
+			*val2 = chip->config->shunt_div;
+			*val = 1000;
+			return IIO_VAL_FRACTIONAL;
+
+		case INA2XX_BUS_VOLTAGE:
+			/* processed (mV) = raw*lsb (uV) / (1000 << shift) */
+			*val = chip->config->bus_voltage_lsb;
+			*val2 = 1000 << chip->config->bus_voltage_shift;
+			return IIO_VAL_FRACTIONAL;
+
+		case INA2XX_POWER:
+			/* processed (mW) = raw*lsb (uW) / 1000 */
+			*val = chip->config->power_lsb;
+			*val2 = 1000;
+			return IIO_VAL_FRACTIONAL;
+
+		case INA2XX_CURRENT:
+			/* processed (mA) = raw (mA) */
+			*val = 1;
+			return IIO_VAL_INT;
+		}
+	}
+
+	return -EINVAL;
+}
+
+/*
+ * Available averaging rates for ina226. The indices correspond with
+ * the bit values expected by the chip (according to the ina226 datasheet,
+ * table 3 AVG bit settings, found at
+ * http://www.ti.com/lit/ds/symlink/ina226.pdf.
+ */
+static const int ina226_avg_tab[] = { 1, 4, 16, 64, 128, 256, 512, 1024 };
+
+static int ina226_set_average(struct ina2xx_chip_info *chip, unsigned int val,
+			      unsigned int *config)
+{
+	int bits;
+
+	if (val > 1024 || val < 1)
+		return -EINVAL;
+
+	bits = find_closest(val, ina226_avg_tab,
+			    ARRAY_SIZE(ina226_avg_tab));
+
+	chip->avg = ina226_avg_tab[bits];
+
+	*config &= ~INA226_AVG_MASK;
+	*config |= INA226_SHIFT_AVG(bits) & INA226_AVG_MASK;
+
+	return 0;
+}
+
+/* Conversion times in uS */
+static const int ina226_conv_time_tab[] = { 140, 204, 332, 588, 1100,
+					    2116, 4156, 8244 };
+
+static int ina226_set_int_time_vbus(struct ina2xx_chip_info *chip,
+				    unsigned int val_us, unsigned int *config)
+{
+	int bits;
+
+	if (val_us > 8244 || val_us < 140)
+		return -EINVAL;
+
+	bits = find_closest(val_us, ina226_conv_time_tab,
+			ARRAY_SIZE(ina226_conv_time_tab));
+
+	chip->int_time_vbus = ina226_conv_time_tab[bits];
+
+	*config &= ~INA226_ITB_MASK;
+	*config |= INA226_SHIFT_ITB(bits) & INA226_ITB_MASK;
+
+	return 0;
+}
+
+static int ina226_set_int_time_vshunt(struct ina2xx_chip_info *chip,
+				      unsigned int val_us, unsigned int *config)
+{
+	int bits;
+
+	if (val_us > 8244 || val_us < 140)
+		return -EINVAL;
+
+	bits = find_closest(val_us, ina226_conv_time_tab,
+			ARRAY_SIZE(ina226_conv_time_tab));
+
+	chip->int_time_vshunt = ina226_conv_time_tab[bits];
+
+	*config &= ~INA226_ITS_MASK;
+	*config |= INA226_SHIFT_ITS(bits) & INA226_ITS_MASK;
+
+	return 0;
+}
+
+static int ina2xx_write_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int val, int val2, long mask)
+{
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+	int ret;
+	unsigned int config, tmp;
+
+	if (iio_buffer_enabled(indio_dev))
+		return -EBUSY;
+
+	mutex_lock(&chip->state_lock);
+
+	ret = regmap_read(chip->regmap, INA2XX_CONFIG, &config);
+	if (ret < 0)
+		goto _err;
+
+	tmp = config;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+		ret = ina226_set_average(chip, val, &tmp);
+		break;
+
+	case IIO_CHAN_INFO_INT_TIME:
+		if (chan->address == INA2XX_SHUNT_VOLTAGE)
+			ret = ina226_set_int_time_vshunt(chip, val2, &tmp);
+		else
+			ret = ina226_set_int_time_vbus(chip, val2, &tmp);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (!ret && (tmp != config))
+		ret = regmap_write(chip->regmap, INA2XX_CONFIG, tmp);
+_err:
+	mutex_unlock(&chip->state_lock);
+
+	return ret;
+}
+
+
+static ssize_t ina2xx_allow_async_readout_show(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
+
+	return sprintf(buf, "%d\n", chip->allow_async_readout);
+}
+
+static ssize_t ina2xx_allow_async_readout_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t len)
+{
+	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
+	bool val;
+	int ret;
+
+	ret = strtobool((const char *) buf, &val);
+	if (ret)
+		return ret;
+
+	chip->allow_async_readout = val;
+
+	return len;
+}
+
+static int set_shunt_resistor(struct ina2xx_chip_info *chip, unsigned int val)
+{
+	if (val <= 0 || val > chip->config->calibration_factor)
+		return -EINVAL;
+
+	chip->shunt_resistor = val;
+	return 0;
+}
+
+static ssize_t ina2xx_shunt_resistor_show(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
+
+	return sprintf(buf, "%d\n", chip->shunt_resistor);
+}
+
+static ssize_t ina2xx_shunt_resistor_store(struct device *dev,
+					   struct device_attribute *attr,
+					   const char *buf, size_t len)
+{
+	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
+	unsigned long val;
+	int ret;
+
+	ret = kstrtoul((const char *) buf, 10, &val);
+	if (ret)
+		return ret;
+
+	ret = set_shunt_resistor(chip, val);
+	if (ret)
+		return ret;
+
+	return len;
+}
+
+#define INA2XX_CHAN(_type, _index, _address) { \
+	.type = (_type), \
+	.address = (_address), \
+	.indexed = 1, \
+	.channel = (_index), \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) \
+	| BIT(IIO_CHAN_INFO_SCALE), \
+	.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+				   BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), \
+	.scan_index = (_index), \
+	.scan_type = { \
+		.sign = 'u', \
+		.realbits = 16, \
+		.storagebits = 16, \
+		.endianness = IIO_CPU, \
+	} \
+}
+
+/*
+ * Sampling Freq is a consequence of the integration times of
+ * the Voltage channels.
+ */
+#define INA2XX_CHAN_VOLTAGE(_index, _address) { \
+	.type = IIO_VOLTAGE, \
+	.address = (_address), \
+	.indexed = 1, \
+	.channel = (_index), \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+			      BIT(IIO_CHAN_INFO_SCALE) | \
+			      BIT(IIO_CHAN_INFO_INT_TIME), \
+	.scan_index = (_index), \
+	.scan_type = { \
+		.sign = 'u', \
+		.realbits = 16, \
+		.storagebits = 16, \
+		.endianness = IIO_LE, \
+	} \
+}
+
+static const struct iio_chan_spec ina2xx_channels[] = {
+	INA2XX_CHAN_VOLTAGE(0, INA2XX_SHUNT_VOLTAGE),
+	INA2XX_CHAN_VOLTAGE(1, INA2XX_BUS_VOLTAGE),
+	INA2XX_CHAN(IIO_POWER, 2, INA2XX_POWER),
+	INA2XX_CHAN(IIO_CURRENT, 3, INA2XX_CURRENT),
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static int ina2xx_work_buffer(struct iio_dev *indio_dev)
+{
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+	unsigned short data[8];
+	int bit, ret, i = 0;
+	unsigned long buffer_us, elapsed_us;
+	s64 time_a, time_b;
+	unsigned int alert;
+
+	time_a = iio_get_time_ns();
+
+	/*
+	 * Because the timer thread and the chip conversion clock
+	 * are asynchronous, the period difference will eventually
+	 * result in reading V[k-1] again, or skip V[k] at time Tk.
+	 * In order to resync the timer with the conversion process
+	 * we check the ConVersionReadyFlag.
+	 * On hardware that supports using the ALERT pin to toggle a
+	 * GPIO a triggered buffer could be used instead.
+	 * For now, we pay for that extra read of the ALERT register
+	 */
+	if (!chip->allow_async_readout)
+		do {
+			ret = regmap_read(chip->regmap, INA226_ALERT_MASK,
+					  &alert);
+			if (ret < 0)
+				return ret;
+
+			alert &= INA266_CVRF;
+			trace_printk("Conversion ready: %d\n", !!alert);
+
+		} while (!alert);
+
+	/*
+	 * Single register reads: bulk_read will not work with ina226
+	 * as there is no auto-increment of the address register for
+	 * data length longer than 16bits.
+	 */
+	for_each_set_bit(bit, indio_dev->active_scan_mask,
+			 indio_dev->masklength) {
+		unsigned int val;
+
+		ret = regmap_read(chip->regmap,
+				  INA2XX_SHUNT_VOLTAGE + bit, &val);
+		if (ret < 0)
+			return ret;
+
+		data[i++] = val;
+	}
+
+	time_b = iio_get_time_ns();
+
+	iio_push_to_buffers_with_timestamp(indio_dev,
+					   (unsigned int *)data, time_a);
+
+	buffer_us = (unsigned long)(time_b - time_a) / 1000;
+	elapsed_us = (unsigned long)(time_a - chip->prev_ns) / 1000;
+
+	trace_printk("uS: elapsed: %lu, buf: %lu\n", elapsed_us, buffer_us);
+
+	chip->prev_ns = time_a;
+
+	return buffer_us;
+};
+
+static int ina2xx_capture_thread(void *data)
+{
+	struct iio_dev *indio_dev = (struct iio_dev *)data;
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+	unsigned int sampling_us = SAMPLING_PERIOD(chip);
+	int buffer_us;
+
+	/*
+	 * Poll a bit faster than the chip internal Fs, in case
+	 * we wish to sync with the conversion ready flag.
+	 */
+	if (!chip->allow_async_readout)
+		sampling_us -= 200;
+
+	do {
+		buffer_us = ina2xx_work_buffer(indio_dev);
+		if (buffer_us < 0)
+			return buffer_us;
+
+		if (sampling_us > buffer_us)
+			udelay(sampling_us - buffer_us);
+
+	} while (!kthread_should_stop());
+
+	return 0;
+}
+
+static int ina2xx_buffer_enable(struct iio_dev *indio_dev)
+{
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+	unsigned int sampling_us = SAMPLING_PERIOD(chip);
+
+	trace_printk("Enabling buffer w/ scan_mask %02x, freq = %d, avg =%u\n",
+		     (unsigned int)(*indio_dev->active_scan_mask),
+		     1000000/sampling_us, chip->avg);
+
+	trace_printk("Expected work period: %u us\n", sampling_us);
+	trace_printk("Async readout mode: %d\n", chip->allow_async_readout);
+
+	chip->prev_ns = iio_get_time_ns();
+
+	chip->task = kthread_run(ina2xx_capture_thread, (void *)indio_dev,
+				 "%s:%d-%uus", indio_dev->name, indio_dev->id,
+				 sampling_us);
+
+	return PTR_ERR_OR_ZERO(chip->task);
+}
+
+static int ina2xx_buffer_disable(struct iio_dev *indio_dev)
+{
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+
+	if (chip->task) {
+		kthread_stop(chip->task);
+		chip->task = NULL;
+	}
+
+	return 0;
+}
+
+static const struct iio_buffer_setup_ops ina2xx_setup_ops = {
+	.postenable = &ina2xx_buffer_enable,
+	.predisable = &ina2xx_buffer_disable,
+};
+
+static int ina2xx_debug_reg(struct iio_dev *indio_dev,
+			    unsigned reg, unsigned writeval, unsigned *readval)
+{
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+
+	if (!readval)
+		return regmap_write(chip->regmap, reg, writeval);
+
+	return regmap_read(chip->regmap, reg, readval);
+}
+
+/* Possible integration times for vshunt and vbus */
+static IIO_CONST_ATTR_INT_TIME_AVAIL \
+ ("0.000140 0.000204 0.000332 0.000588 0.001100 0.002116 0.004156 0.008244");
+
+static IIO_DEVICE_ATTR(in_allow_async_readout, S_IRUGO | S_IWUSR,
+		       ina2xx_allow_async_readout_show,
+		       ina2xx_allow_async_readout_store, 0);
+
+static IIO_DEVICE_ATTR(in_shunt_resistor, S_IRUGO | S_IWUSR,
+		       ina2xx_shunt_resistor_show,
+		       ina2xx_shunt_resistor_store, 0);
+
+static struct attribute *ina2xx_attributes[] = {
+	&iio_dev_attr_in_allow_async_readout.dev_attr.attr,
+	&iio_const_attr_integration_time_available.dev_attr.attr,
+	&iio_dev_attr_in_shunt_resistor.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ina2xx_attribute_group = {
+	.attrs = ina2xx_attributes,
+};
+
+static const struct iio_info ina2xx_info = {
+	.debugfs_reg_access = &ina2xx_debug_reg,
+	.read_raw = &ina2xx_read_raw,
+	.write_raw = &ina2xx_write_raw,
+	.attrs = &ina2xx_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+/* Initialize the configuration and calibration registers. */
+static int ina2xx_init(struct ina2xx_chip_info *chip, unsigned int config)
+{
+	u16 regval;
+	int ret = regmap_write(chip->regmap, INA2XX_CONFIG, config);
+
+	if (ret < 0)
+		return ret;
+	/*
+	 * Set current LSB to 1mA, shunt is in uOhms
+	 * (equation 13 in datasheet). We hardcode a Current_LSB
+	 * of 1.0 x10-6. The only remaining parameter is RShunt.
+	 * There is no need to expose the CALIBRATION register
+	 * to the user for now.
+	 */
+	regval = DIV_ROUND_CLOSEST(chip->config->calibration_factor,
+			    chip->shunt_resistor);
+
+	return regmap_write(chip->regmap, INA2XX_CALIBRATION, regval);
+}
+
+static int ina2xx_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct ina2xx_chip_info *chip;
+	struct iio_dev *indio_dev;
+	struct iio_buffer *buffer;
+	int ret;
+	unsigned int val;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	chip = iio_priv(indio_dev);
+
+	chip->config = &ina2xx_config[id->driver_data];
+
+	if (of_property_read_u32(client->dev.of_node,
+				 "shunt-resistor", &val) < 0) {
+		struct ina2xx_platform_data *pdata =
+		    dev_get_platdata(&client->dev);
+
+		if (pdata)
+			val = pdata->shunt_uohms;
+		else
+			val = INA2XX_RSHUNT_DEFAULT;
+	}
+
+	ret = set_shunt_resistor(chip, val);
+	if (ret)
+		return ret;
+
+	mutex_init(&chip->state_lock);
+
+	/* This is only used for device removal purposes. */
+	i2c_set_clientdata(client, indio_dev);
+
+	indio_dev->name = id->name;
+	indio_dev->channels = ina2xx_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ina2xx_channels);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &ina2xx_info;
+	indio_dev->modes = INDIO_DIRECT_MODE | INDIO_BUFFER_SOFTWARE;
+
+	chip->regmap = devm_regmap_init_i2c(client, &ina2xx_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		dev_err(&client->dev, "failed to allocate register map\n");
+		return PTR_ERR(chip->regmap);
+	}
+
+	/* Patch the current config register with default. */
+	val = chip->config->config_default;
+
+	if (id->driver_data == ina226) {
+		ina226_set_average(chip, INA226_DEFAULT_AVG, &val);
+		ina226_set_int_time_vbus(chip, INA226_DEFAULT_IT, &val);
+		ina226_set_int_time_vshunt(chip, INA226_DEFAULT_IT, &val);
+	}
+
+	ret = ina2xx_init(chip, val);
+	if (ret < 0) {
+		dev_err(&client->dev, "error configuring the device: %d\n",
+			ret);
+		return -ENODEV;
+	}
+
+	buffer = devm_iio_kfifo_allocate(&indio_dev->dev);
+	if (!buffer)
+		return -ENOMEM;
+
+	indio_dev->setup_ops = &ina2xx_setup_ops;
+
+	iio_device_attach_buffer(indio_dev, buffer);
+
+	return iio_device_register(indio_dev);
+}
+
+
+static int ina2xx_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct ina2xx_chip_info *chip = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	/* Powerdown */
+	return regmap_update_bits(chip->regmap, INA2XX_CONFIG,
+				  INA2XX_MODE_MASK, 0);
+}
+
+
+static const struct i2c_device_id ina2xx_id[] = {
+	{"ina219", ina219},
+	{"ina220", ina219},
+	{"ina226", ina226},
+	{"ina230", ina226},
+	{"ina231", ina226},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, ina2xx_id);
+
+static struct i2c_driver ina2xx_driver = {
+	.driver = {
+		   .name = KBUILD_MODNAME,
+	},
+	.probe = ina2xx_probe,
+	.remove = ina2xx_remove,
+	.id_table = ina2xx_id,
+};
+
+module_i2c_driver(ina2xx_driver);
+
+MODULE_AUTHOR("Marc Titinger <marc.titinger@baylibre.com>");
+MODULE_DESCRIPTION("Texas Instruments INA2XX ADC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index 8569c8e1f4b2..d1c05f6eed18 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -354,6 +354,7 @@ static int mcp320x_remove(struct spi_device *spi)
 
 #if defined(CONFIG_OF)
 static const struct of_device_id mcp320x_dt_ids[] = {
+	/* NOTE: The use of compatibles with no vendor prefix is deprecated. */
 	{
 		.compatible = "mcp3001",
 		.data = &mcp320x_chip_infos[mcp3001],
@@ -382,6 +383,33 @@ static const struct of_device_id mcp320x_dt_ids[] = {
 		.compatible = "mcp3301",
 		.data = &mcp320x_chip_infos[mcp3301],
 	}, {
+		.compatible = "microchip,mcp3001",
+		.data = &mcp320x_chip_infos[mcp3001],
+	}, {
+		.compatible = "microchip,mcp3002",
+		.data = &mcp320x_chip_infos[mcp3002],
+	}, {
+		.compatible = "microchip,mcp3004",
+		.data = &mcp320x_chip_infos[mcp3004],
+	}, {
+		.compatible = "microchip,mcp3008",
+		.data = &mcp320x_chip_infos[mcp3008],
+	}, {
+		.compatible = "microchip,mcp3201",
+		.data = &mcp320x_chip_infos[mcp3201],
+	}, {
+		.compatible = "microchip,mcp3202",
+		.data = &mcp320x_chip_infos[mcp3202],
+	}, {
+		.compatible = "microchip,mcp3204",
+		.data = &mcp320x_chip_infos[mcp3204],
+	}, {
+		.compatible = "microchip,mcp3208",
+		.data = &mcp320x_chip_infos[mcp3208],
+	}, {
+		.compatible = "microchip,mcp3301",
+		.data = &mcp320x_chip_infos[mcp3301],
+	}, {
 	}
 };
 MODULE_DEVICE_TABLE(of, mcp320x_dt_ids);
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index 3555122008b4..6eca7aea8a37 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -305,6 +305,10 @@ static const struct attribute_group mcp3422_attribute_group = {
 	.attrs = mcp3422_attributes,
 };
 
+static const struct iio_chan_spec mcp3421_channels[] = {
+	MCP3422_CHAN(0),
+};
+
 static const struct iio_chan_spec mcp3422_channels[] = {
 	MCP3422_CHAN(0),
 	MCP3422_CHAN(1),
@@ -352,6 +356,10 @@ static int mcp3422_probe(struct i2c_client *client,
 	indio_dev->info = &mcp3422_info;
 
 	switch (adc->id) {
+	case 1:
+		indio_dev->channels = mcp3421_channels;
+		indio_dev->num_channels = ARRAY_SIZE(mcp3421_channels);
+		break;
 	case 2:
 	case 3:
 	case 6:
@@ -383,6 +391,7 @@ static int mcp3422_probe(struct i2c_client *client,
 }
 
 static const struct i2c_device_id mcp3422_id[] = {
+	{ "mcp3421", 1 },
 	{ "mcp3422", 2 },
 	{ "mcp3423", 3 },
 	{ "mcp3424", 4 },
diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
new file mode 100644
index 000000000000..f42eb8a7d21f
--- /dev/null
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -0,0 +1,859 @@
+/*
+ * palmas-adc.c -- TI PALMAS GPADC.
+ *
+ * Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
+ *
+ * Author: Pradeep Goudagunta <pgoudagunta@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/pm.h>
+#include <linux/mfd/palmas.h>
+#include <linux/completion.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
+
+#define MOD_NAME "palmas-gpadc"
+#define PALMAS_ADC_CONVERSION_TIMEOUT	(msecs_to_jiffies(5000))
+#define PALMAS_TO_BE_CALCULATED 0
+#define PALMAS_GPADC_TRIMINVALID	-1
+
+struct palmas_gpadc_info {
+/* calibration codes and regs */
+	int x1;	/* lower ideal code */
+	int x2;	/* higher ideal code */
+	int v1;	/* expected lower volt reading */
+	int v2;	/* expected higher volt reading */
+	u8 trim1_reg;	/* register number for lower trim */
+	u8 trim2_reg;	/* register number for upper trim */
+	int gain;	/* calculated from above (after reading trim regs) */
+	int offset;	/* calculated from above (after reading trim regs) */
+	int gain_error;	/* calculated from above (after reading trim regs) */
+	bool is_uncalibrated;	/* if channel has calibration data */
+};
+
+#define PALMAS_ADC_INFO(_chan, _x1, _x2, _v1, _v2, _t1, _t2, _is_uncalibrated) \
+	[PALMAS_ADC_CH_##_chan] = { \
+		.x1 = _x1, \
+		.x2 = _x2, \
+		.v1 = _v1, \
+		.v2 = _v2, \
+		.gain = PALMAS_TO_BE_CALCULATED, \
+		.offset = PALMAS_TO_BE_CALCULATED, \
+		.gain_error = PALMAS_TO_BE_CALCULATED, \
+		.trim1_reg = PALMAS_GPADC_TRIM##_t1, \
+		.trim2_reg = PALMAS_GPADC_TRIM##_t2,  \
+		.is_uncalibrated = _is_uncalibrated \
+	}
+
+static struct palmas_gpadc_info palmas_gpadc_info[] = {
+	PALMAS_ADC_INFO(IN0, 2064, 3112, 630, 950, 1, 2, false),
+	PALMAS_ADC_INFO(IN1, 2064, 3112, 630, 950, 1, 2, false),
+	PALMAS_ADC_INFO(IN2, 2064, 3112, 1260, 1900, 3, 4, false),
+	PALMAS_ADC_INFO(IN3, 2064, 3112, 630, 950, 1, 2, false),
+	PALMAS_ADC_INFO(IN4, 2064, 3112, 630, 950, 1, 2, false),
+	PALMAS_ADC_INFO(IN5, 2064, 3112, 630, 950, 1, 2, false),
+	PALMAS_ADC_INFO(IN6, 2064, 3112, 2520, 3800, 5, 6, false),
+	PALMAS_ADC_INFO(IN7, 2064, 3112, 2520, 3800, 7, 8, false),
+	PALMAS_ADC_INFO(IN8, 2064, 3112, 3150, 4750, 9, 10, false),
+	PALMAS_ADC_INFO(IN9, 2064, 3112, 5670, 8550, 11, 12, false),
+	PALMAS_ADC_INFO(IN10, 2064, 3112, 3465, 5225, 13, 14, false),
+	PALMAS_ADC_INFO(IN11, 0, 0, 0, 0, INVALID, INVALID, true),
+	PALMAS_ADC_INFO(IN12, 0, 0, 0, 0, INVALID, INVALID, true),
+	PALMAS_ADC_INFO(IN13, 0, 0, 0, 0, INVALID, INVALID, true),
+	PALMAS_ADC_INFO(IN14, 2064, 3112, 3645, 5225, 15, 16, false),
+	PALMAS_ADC_INFO(IN15, 0, 0, 0, 0, INVALID, INVALID, true),
+};
+
+/**
+ * struct palmas_gpadc - the palmas_gpadc structure
+ * @ch0_current:	channel 0 current source setting
+ *			0: 0 uA
+ *			1: 5 uA
+ *			2: 15 uA
+ *			3: 20 uA
+ * @ch3_current:	channel 0 current source setting
+ *			0: 0 uA
+ *			1: 10 uA
+ *			2: 400 uA
+ *			3: 800 uA
+ * @extended_delay:	enable the gpadc extended delay mode
+ * @auto_conversion_period:	define the auto_conversion_period
+ *
+ * This is the palmas_gpadc structure to store run-time information
+ * and pointers for this driver instance.
+ */
+
+struct palmas_gpadc {
+	struct device			*dev;
+	struct palmas			*palmas;
+	u8				ch0_current;
+	u8				ch3_current;
+	bool				extended_delay;
+	int				irq;
+	int				irq_auto_0;
+	int				irq_auto_1;
+	struct palmas_gpadc_info	*adc_info;
+	struct completion		conv_completion;
+	struct palmas_adc_wakeup_property wakeup1_data;
+	struct palmas_adc_wakeup_property wakeup2_data;
+	bool				wakeup1_enable;
+	bool				wakeup2_enable;
+	int				auto_conversion_period;
+};
+
+/*
+ * GPADC lock issue in AUTO mode.
+ * Impact: In AUTO mode, GPADC conversion can be locked after disabling AUTO
+ *	   mode feature.
+ * Details:
+ *	When the AUTO mode is the only conversion mode enabled, if the AUTO
+ *	mode feature is disabled with bit GPADC_AUTO_CTRL.  AUTO_CONV1_EN = 0
+ *	or bit GPADC_AUTO_CTRL.  AUTO_CONV0_EN = 0 during a conversion, the
+ *	conversion mechanism can be seen as locked meaning that all following
+ *	conversion will give 0 as a result.  Bit GPADC_STATUS.GPADC_AVAILABLE
+ *	will stay at 0 meaning that GPADC is busy.  An RT conversion can unlock
+ *	the GPADC.
+ *
+ * Workaround(s):
+ *	To avoid the lock mechanism, the workaround to follow before any stop
+ *	conversion request is:
+ *	Force the GPADC state machine to be ON by using the GPADC_CTRL1.
+ *		GPADC_FORCE bit = 1
+ *	Shutdown the GPADC AUTO conversion using
+ *		GPADC_AUTO_CTRL.SHUTDOWN_CONV[01] = 0.
+ *	After 100us, force the GPADC state machine to be OFF by using the
+ *		GPADC_CTRL1.  GPADC_FORCE bit = 0
+ */
+
+static int palmas_disable_auto_conversion(struct palmas_gpadc *adc)
+{
+	int ret;
+
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_CTRL1,
+			PALMAS_GPADC_CTRL1_GPADC_FORCE,
+			PALMAS_GPADC_CTRL1_GPADC_FORCE);
+	if (ret < 0) {
+		dev_err(adc->dev, "GPADC_CTRL1 update failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_AUTO_CTRL,
+			PALMAS_GPADC_AUTO_CTRL_SHUTDOWN_CONV1 |
+			PALMAS_GPADC_AUTO_CTRL_SHUTDOWN_CONV0,
+			0);
+	if (ret < 0) {
+		dev_err(adc->dev, "AUTO_CTRL update failed: %d\n", ret);
+		return ret;
+	}
+
+	udelay(100);
+
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_CTRL1,
+			PALMAS_GPADC_CTRL1_GPADC_FORCE, 0);
+	if (ret < 0)
+		dev_err(adc->dev, "GPADC_CTRL1 update failed: %d\n", ret);
+
+	return ret;
+}
+
+static irqreturn_t palmas_gpadc_irq(int irq, void *data)
+{
+	struct palmas_gpadc *adc = data;
+
+	complete(&adc->conv_completion);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t palmas_gpadc_irq_auto(int irq, void *data)
+{
+	struct palmas_gpadc *adc = data;
+
+	dev_dbg(adc->dev, "Threshold interrupt %d occurs\n", irq);
+	palmas_disable_auto_conversion(adc);
+
+	return IRQ_HANDLED;
+}
+
+static int palmas_gpadc_start_mask_interrupt(struct palmas_gpadc *adc,
+						bool mask)
+{
+	int ret;
+
+	if (!mask)
+		ret = palmas_update_bits(adc->palmas, PALMAS_INTERRUPT_BASE,
+					PALMAS_INT3_MASK,
+					PALMAS_INT3_MASK_GPADC_EOC_SW, 0);
+	else
+		ret = palmas_update_bits(adc->palmas, PALMAS_INTERRUPT_BASE,
+					PALMAS_INT3_MASK,
+					PALMAS_INT3_MASK_GPADC_EOC_SW,
+					PALMAS_INT3_MASK_GPADC_EOC_SW);
+	if (ret < 0)
+		dev_err(adc->dev, "GPADC INT MASK update failed: %d\n", ret);
+
+	return ret;
+}
+
+static int palmas_gpadc_enable(struct palmas_gpadc *adc, int adc_chan,
+			       int enable)
+{
+	unsigned int mask, val;
+	int ret;
+
+	if (enable) {
+		val = (adc->extended_delay
+			<< PALMAS_GPADC_RT_CTRL_EXTEND_DELAY_SHIFT);
+		ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+					PALMAS_GPADC_RT_CTRL,
+					PALMAS_GPADC_RT_CTRL_EXTEND_DELAY, val);
+		if (ret < 0) {
+			dev_err(adc->dev, "RT_CTRL update failed: %d\n", ret);
+			return ret;
+		}
+
+		mask = (PALMAS_GPADC_CTRL1_CURRENT_SRC_CH0_MASK |
+			PALMAS_GPADC_CTRL1_CURRENT_SRC_CH3_MASK |
+			PALMAS_GPADC_CTRL1_GPADC_FORCE);
+		val = (adc->ch0_current
+			<< PALMAS_GPADC_CTRL1_CURRENT_SRC_CH0_SHIFT);
+		val |= (adc->ch3_current
+			<< PALMAS_GPADC_CTRL1_CURRENT_SRC_CH3_SHIFT);
+		val |= PALMAS_GPADC_CTRL1_GPADC_FORCE;
+		ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_CTRL1, mask, val);
+		if (ret < 0) {
+			dev_err(adc->dev,
+				"Failed to update current setting: %d\n", ret);
+			return ret;
+		}
+
+		mask = (PALMAS_GPADC_SW_SELECT_SW_CONV0_SEL_MASK |
+			PALMAS_GPADC_SW_SELECT_SW_CONV_EN);
+		val = (adc_chan | PALMAS_GPADC_SW_SELECT_SW_CONV_EN);
+		ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_SW_SELECT, mask, val);
+		if (ret < 0) {
+			dev_err(adc->dev, "SW_SELECT update failed: %d\n", ret);
+			return ret;
+		}
+	} else {
+		ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_SW_SELECT, 0);
+		if (ret < 0)
+			dev_err(adc->dev, "SW_SELECT write failed: %d\n", ret);
+
+		ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_CTRL1,
+				PALMAS_GPADC_CTRL1_GPADC_FORCE, 0);
+		if (ret < 0) {
+			dev_err(adc->dev, "CTRL1 update failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+static int palmas_gpadc_read_prepare(struct palmas_gpadc *adc, int adc_chan)
+{
+	int ret;
+
+	ret = palmas_gpadc_enable(adc, adc_chan, true);
+	if (ret < 0)
+		return ret;
+
+	return palmas_gpadc_start_mask_interrupt(adc, 0);
+}
+
+static void palmas_gpadc_read_done(struct palmas_gpadc *adc, int adc_chan)
+{
+	palmas_gpadc_start_mask_interrupt(adc, 1);
+	palmas_gpadc_enable(adc, adc_chan, false);
+}
+
+static int palmas_gpadc_calibrate(struct palmas_gpadc *adc, int adc_chan)
+{
+	int k;
+	int d1;
+	int d2;
+	int ret;
+	int gain;
+	int x1 =  adc->adc_info[adc_chan].x1;
+	int x2 =  adc->adc_info[adc_chan].x2;
+	int v1 = adc->adc_info[adc_chan].v1;
+	int v2 = adc->adc_info[adc_chan].v2;
+
+	ret = palmas_read(adc->palmas, PALMAS_TRIM_GPADC_BASE,
+				adc->adc_info[adc_chan].trim1_reg, &d1);
+	if (ret < 0) {
+		dev_err(adc->dev, "TRIM read failed: %d\n", ret);
+		goto scrub;
+	}
+
+	ret = palmas_read(adc->palmas, PALMAS_TRIM_GPADC_BASE,
+				adc->adc_info[adc_chan].trim2_reg, &d2);
+	if (ret < 0) {
+		dev_err(adc->dev, "TRIM read failed: %d\n", ret);
+		goto scrub;
+	}
+
+	/* gain error calculation */
+	k = (1000 + (1000 * (d2 - d1)) / (x2 - x1));
+
+	/* gain calculation */
+	gain = ((v2 - v1) * 1000) / (x2 - x1);
+
+	adc->adc_info[adc_chan].gain_error = k;
+	adc->adc_info[adc_chan].gain = gain;
+	/* offset Calculation */
+	adc->adc_info[adc_chan].offset = (d1 * 1000) - ((k - 1000) * x1);
+
+scrub:
+	return ret;
+}
+
+static int palmas_gpadc_start_conversion(struct palmas_gpadc *adc, int adc_chan)
+{
+	unsigned int val;
+	int ret;
+
+	init_completion(&adc->conv_completion);
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_SW_SELECT,
+				PALMAS_GPADC_SW_SELECT_SW_START_CONV0,
+				PALMAS_GPADC_SW_SELECT_SW_START_CONV0);
+	if (ret < 0) {
+		dev_err(adc->dev, "SELECT_SW_START write failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = wait_for_completion_timeout(&adc->conv_completion,
+				PALMAS_ADC_CONVERSION_TIMEOUT);
+	if (ret == 0) {
+		dev_err(adc->dev, "conversion not completed\n");
+		return -ETIMEDOUT;
+	}
+
+	ret = palmas_bulk_read(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_SW_CONV0_LSB, &val, 2);
+	if (ret < 0) {
+		dev_err(adc->dev, "SW_CONV0_LSB read failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = val & 0xFFF;
+
+	return ret;
+}
+
+static int palmas_gpadc_get_calibrated_code(struct palmas_gpadc *adc,
+						int adc_chan, int val)
+{
+	if (!adc->adc_info[adc_chan].is_uncalibrated)
+		val  = (val*1000 - adc->adc_info[adc_chan].offset) /
+					adc->adc_info[adc_chan].gain_error;
+
+	if (val < 0) {
+		dev_err(adc->dev, "Mismatch with calibration\n");
+		return 0;
+	}
+
+	val = (val * adc->adc_info[adc_chan].gain) / 1000;
+
+	return val;
+}
+
+static int palmas_gpadc_read_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int *val, int *val2, long mask)
+{
+	struct  palmas_gpadc *adc = iio_priv(indio_dev);
+	int adc_chan = chan->channel;
+	int ret = 0;
+
+	if (adc_chan > PALMAS_ADC_CH_MAX)
+		return -EINVAL;
+
+	mutex_lock(&indio_dev->mlock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+	case IIO_CHAN_INFO_PROCESSED:
+		ret = palmas_gpadc_read_prepare(adc, adc_chan);
+		if (ret < 0)
+			goto out;
+
+		ret = palmas_gpadc_start_conversion(adc, adc_chan);
+		if (ret < 0) {
+			dev_err(adc->dev,
+			"ADC start conversion failed\n");
+			goto out;
+		}
+
+		if (mask == IIO_CHAN_INFO_PROCESSED)
+			ret = palmas_gpadc_get_calibrated_code(
+							adc, adc_chan, ret);
+
+		*val = ret;
+
+		ret = IIO_VAL_INT;
+		goto out;
+	}
+
+	mutex_unlock(&indio_dev->mlock);
+	return ret;
+
+out:
+	palmas_gpadc_read_done(adc, adc_chan);
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static const struct iio_info palmas_gpadc_iio_info = {
+	.read_raw = palmas_gpadc_read_raw,
+	.driver_module = THIS_MODULE,
+};
+
+#define PALMAS_ADC_CHAN_IIO(chan, _type, chan_info)	\
+{							\
+	.datasheet_name = PALMAS_DATASHEET_NAME(chan),	\
+	.type = _type,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
+			BIT(chan_info),			\
+	.indexed = 1,					\
+	.channel = PALMAS_ADC_CH_##chan,		\
+}
+
+static const struct iio_chan_spec palmas_gpadc_iio_channel[] = {
+	PALMAS_ADC_CHAN_IIO(IN0, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN1, IIO_TEMP, IIO_CHAN_INFO_RAW),
+	PALMAS_ADC_CHAN_IIO(IN2, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN3, IIO_TEMP, IIO_CHAN_INFO_RAW),
+	PALMAS_ADC_CHAN_IIO(IN4, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN5, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN6, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN7, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN8, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN9, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN10, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN11, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN12, IIO_TEMP, IIO_CHAN_INFO_RAW),
+	PALMAS_ADC_CHAN_IIO(IN13, IIO_TEMP, IIO_CHAN_INFO_RAW),
+	PALMAS_ADC_CHAN_IIO(IN14, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+	PALMAS_ADC_CHAN_IIO(IN15, IIO_VOLTAGE, IIO_CHAN_INFO_PROCESSED),
+};
+
+static int palmas_gpadc_get_adc_dt_data(struct platform_device *pdev,
+	struct palmas_gpadc_platform_data **gpadc_pdata)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct palmas_gpadc_platform_data *gp_data;
+	int ret;
+	u32 pval;
+
+	gp_data = devm_kzalloc(&pdev->dev, sizeof(*gp_data), GFP_KERNEL);
+	if (!gp_data)
+		return -ENOMEM;
+
+	ret = of_property_read_u32(np, "ti,channel0-current-microamp", &pval);
+	if (!ret)
+		gp_data->ch0_current = pval;
+
+	ret = of_property_read_u32(np, "ti,channel3-current-microamp", &pval);
+	if (!ret)
+		gp_data->ch3_current = pval;
+
+	gp_data->extended_delay = of_property_read_bool(np,
+					"ti,enable-extended-delay");
+
+	*gpadc_pdata = gp_data;
+
+	return 0;
+}
+
+static int palmas_gpadc_probe(struct platform_device *pdev)
+{
+	struct palmas_gpadc *adc;
+	struct palmas_platform_data *pdata;
+	struct palmas_gpadc_platform_data *gpadc_pdata = NULL;
+	struct iio_dev *indio_dev;
+	int ret, i;
+
+	pdata = dev_get_platdata(pdev->dev.parent);
+
+	if (pdata && pdata->gpadc_pdata)
+		gpadc_pdata = pdata->gpadc_pdata;
+
+	if (!gpadc_pdata && pdev->dev.of_node) {
+		ret = palmas_gpadc_get_adc_dt_data(pdev, &gpadc_pdata);
+		if (ret < 0)
+			return ret;
+	}
+	if (!gpadc_pdata)
+		return -EINVAL;
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc));
+	if (!indio_dev) {
+		dev_err(&pdev->dev, "iio_device_alloc failed\n");
+		return -ENOMEM;
+	}
+
+	adc = iio_priv(indio_dev);
+	adc->dev = &pdev->dev;
+	adc->palmas = dev_get_drvdata(pdev->dev.parent);
+	adc->adc_info = palmas_gpadc_info;
+	init_completion(&adc->conv_completion);
+	dev_set_drvdata(&pdev->dev, indio_dev);
+
+	adc->auto_conversion_period = gpadc_pdata->auto_conversion_period_ms;
+	adc->irq = palmas_irq_get_virq(adc->palmas, PALMAS_GPADC_EOC_SW_IRQ);
+	if (adc->irq < 0) {
+		dev_err(adc->dev,
+			"get virq failed: %d\n", adc->irq);
+		ret = adc->irq;
+		goto out;
+	}
+	ret = request_threaded_irq(adc->irq, NULL,
+		palmas_gpadc_irq,
+		IRQF_ONESHOT | IRQF_EARLY_RESUME, dev_name(adc->dev),
+		adc);
+	if (ret < 0) {
+		dev_err(adc->dev,
+			"request irq %d failed: %d\n", adc->irq, ret);
+		goto out;
+	}
+
+	if (gpadc_pdata->adc_wakeup1_data) {
+		memcpy(&adc->wakeup1_data, gpadc_pdata->adc_wakeup1_data,
+			sizeof(adc->wakeup1_data));
+		adc->wakeup1_enable = true;
+		adc->irq_auto_0 =  platform_get_irq(pdev, 1);
+		ret = request_threaded_irq(adc->irq_auto_0, NULL,
+				palmas_gpadc_irq_auto,
+				IRQF_ONESHOT | IRQF_EARLY_RESUME,
+				"palmas-adc-auto-0", adc);
+		if (ret < 0) {
+			dev_err(adc->dev, "request auto0 irq %d failed: %d\n",
+				adc->irq_auto_0, ret);
+			goto out_irq_free;
+		}
+	}
+
+	if (gpadc_pdata->adc_wakeup2_data) {
+		memcpy(&adc->wakeup2_data, gpadc_pdata->adc_wakeup2_data,
+				sizeof(adc->wakeup2_data));
+		adc->wakeup2_enable = true;
+		adc->irq_auto_1 =  platform_get_irq(pdev, 2);
+		ret = request_threaded_irq(adc->irq_auto_1, NULL,
+				palmas_gpadc_irq_auto,
+				IRQF_ONESHOT | IRQF_EARLY_RESUME,
+				"palmas-adc-auto-1", adc);
+		if (ret < 0) {
+			dev_err(adc->dev, "request auto1 irq %d failed: %d\n",
+				adc->irq_auto_1, ret);
+			goto out_irq_auto0_free;
+		}
+	}
+
+	/* set the current source 0 (value 0/5/15/20 uA => 0..3) */
+	if (gpadc_pdata->ch0_current <= 1)
+		adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_0;
+	else if (gpadc_pdata->ch0_current <= 5)
+		adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_5;
+	else if (gpadc_pdata->ch0_current <= 15)
+		adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_15;
+	else
+		adc->ch0_current = PALMAS_ADC_CH0_CURRENT_SRC_20;
+
+	/* set the current source 3 (value 0/10/400/800 uA => 0..3) */
+	if (gpadc_pdata->ch3_current <= 1)
+		adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_0;
+	else if (gpadc_pdata->ch3_current <= 10)
+		adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_10;
+	else if (gpadc_pdata->ch3_current <= 400)
+		adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_400;
+	else
+		adc->ch3_current = PALMAS_ADC_CH3_CURRENT_SRC_800;
+
+	adc->extended_delay = gpadc_pdata->extended_delay;
+
+	indio_dev->name = MOD_NAME;
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &palmas_gpadc_iio_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = palmas_gpadc_iio_channel;
+	indio_dev->num_channels = ARRAY_SIZE(palmas_gpadc_iio_channel);
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(adc->dev, "iio_device_register() failed: %d\n", ret);
+		goto out_irq_auto1_free;
+	}
+
+	device_set_wakeup_capable(&pdev->dev, 1);
+	for (i = 0; i < PALMAS_ADC_CH_MAX; i++) {
+		if (!(adc->adc_info[i].is_uncalibrated))
+			palmas_gpadc_calibrate(adc, i);
+	}
+
+	if (adc->wakeup1_enable || adc->wakeup2_enable)
+		device_wakeup_enable(&pdev->dev);
+
+	return 0;
+
+out_irq_auto1_free:
+	if (gpadc_pdata->adc_wakeup2_data)
+		free_irq(adc->irq_auto_1, adc);
+out_irq_auto0_free:
+	if (gpadc_pdata->adc_wakeup1_data)
+		free_irq(adc->irq_auto_0, adc);
+out_irq_free:
+	free_irq(adc->irq, adc);
+out:
+	return ret;
+}
+
+static int palmas_gpadc_remove(struct platform_device *pdev)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(&pdev->dev);
+	struct palmas_gpadc *adc = iio_priv(indio_dev);
+
+	if (adc->wakeup1_enable || adc->wakeup2_enable)
+		device_wakeup_disable(&pdev->dev);
+	iio_device_unregister(indio_dev);
+	free_irq(adc->irq, adc);
+	if (adc->wakeup1_enable)
+		free_irq(adc->irq_auto_0, adc);
+	if (adc->wakeup2_enable)
+		free_irq(adc->irq_auto_1, adc);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int palmas_adc_wakeup_configure(struct palmas_gpadc *adc)
+{
+	int adc_period, conv;
+	int i;
+	int ch0 = 0, ch1 = 0;
+	int thres;
+	int ret;
+
+	adc_period = adc->auto_conversion_period;
+	for (i = 0; i < 16; ++i) {
+		if (((1000 * (1 << i)) / 32) < adc_period)
+			continue;
+	}
+	if (i > 0)
+		i--;
+	adc_period = i;
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_AUTO_CTRL,
+			PALMAS_GPADC_AUTO_CTRL_COUNTER_CONV_MASK,
+			adc_period);
+	if (ret < 0) {
+		dev_err(adc->dev, "AUTO_CTRL write failed: %d\n", ret);
+		return ret;
+	}
+
+	conv = 0;
+	if (adc->wakeup1_enable) {
+		int polarity;
+
+		ch0 = adc->wakeup1_data.adc_channel_number;
+		conv |= PALMAS_GPADC_AUTO_CTRL_AUTO_CONV0_EN;
+		if (adc->wakeup1_data.adc_high_threshold > 0) {
+			thres = adc->wakeup1_data.adc_high_threshold;
+			polarity = 0;
+		} else {
+			thres = adc->wakeup1_data.adc_low_threshold;
+			polarity = PALMAS_GPADC_THRES_CONV0_MSB_THRES_CONV0_POL;
+		}
+
+		ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_THRES_CONV0_LSB, thres & 0xFF);
+		if (ret < 0) {
+			dev_err(adc->dev,
+				"THRES_CONV0_LSB write failed: %d\n", ret);
+			return ret;
+		}
+
+		ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_THRES_CONV0_MSB,
+				((thres >> 8) & 0xF) | polarity);
+		if (ret < 0) {
+			dev_err(adc->dev,
+				"THRES_CONV0_MSB write failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	if (adc->wakeup2_enable) {
+		int polarity;
+
+		ch1 = adc->wakeup2_data.adc_channel_number;
+		conv |= PALMAS_GPADC_AUTO_CTRL_AUTO_CONV1_EN;
+		if (adc->wakeup2_data.adc_high_threshold > 0) {
+			thres = adc->wakeup2_data.adc_high_threshold;
+			polarity = 0;
+		} else {
+			thres = adc->wakeup2_data.adc_low_threshold;
+			polarity = PALMAS_GPADC_THRES_CONV1_MSB_THRES_CONV1_POL;
+		}
+
+		ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_THRES_CONV1_LSB, thres & 0xFF);
+		if (ret < 0) {
+			dev_err(adc->dev,
+				"THRES_CONV1_LSB write failed: %d\n", ret);
+			return ret;
+		}
+
+		ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+				PALMAS_GPADC_THRES_CONV1_MSB,
+				((thres >> 8) & 0xF) | polarity);
+		if (ret < 0) {
+			dev_err(adc->dev,
+				"THRES_CONV1_MSB write failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_AUTO_SELECT, (ch1 << 4) | ch0);
+	if (ret < 0) {
+		dev_err(adc->dev, "AUTO_SELECT write failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = palmas_update_bits(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_AUTO_CTRL,
+			PALMAS_GPADC_AUTO_CTRL_AUTO_CONV1_EN |
+			PALMAS_GPADC_AUTO_CTRL_AUTO_CONV0_EN, conv);
+	if (ret < 0)
+		dev_err(adc->dev, "AUTO_CTRL write failed: %d\n", ret);
+
+	return ret;
+}
+
+static int palmas_adc_wakeup_reset(struct palmas_gpadc *adc)
+{
+	int ret;
+
+	ret = palmas_write(adc->palmas, PALMAS_GPADC_BASE,
+			PALMAS_GPADC_AUTO_SELECT, 0);
+	if (ret < 0) {
+		dev_err(adc->dev, "AUTO_SELECT write failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = palmas_disable_auto_conversion(adc);
+	if (ret < 0)
+		dev_err(adc->dev, "Disable auto conversion failed: %d\n", ret);
+
+	return ret;
+}
+
+static int palmas_gpadc_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct palmas_gpadc *adc = iio_priv(indio_dev);
+	int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
+	int ret;
+
+	if (!device_may_wakeup(dev) || !wakeup)
+		return 0;
+
+	ret = palmas_adc_wakeup_configure(adc);
+	if (ret < 0)
+		return ret;
+
+	if (adc->wakeup1_enable)
+		enable_irq_wake(adc->irq_auto_0);
+
+	if (adc->wakeup2_enable)
+		enable_irq_wake(adc->irq_auto_1);
+
+	return 0;
+}
+
+static int palmas_gpadc_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct palmas_gpadc *adc = iio_priv(indio_dev);
+	int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
+	int ret;
+
+	if (!device_may_wakeup(dev) || !wakeup)
+		return 0;
+
+	ret = palmas_adc_wakeup_reset(adc);
+	if (ret < 0)
+		return ret;
+
+	if (adc->wakeup1_enable)
+		disable_irq_wake(adc->irq_auto_0);
+
+	if (adc->wakeup2_enable)
+		disable_irq_wake(adc->irq_auto_1);
+
+	return 0;
+};
+#endif
+
+static const struct dev_pm_ops palmas_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(palmas_gpadc_suspend,
+				palmas_gpadc_resume)
+};
+
+static const struct of_device_id of_palmas_gpadc_match_tbl[] = {
+	{ .compatible = "ti,palmas-gpadc", },
+	{ /* end */ }
+};
+MODULE_DEVICE_TABLE(of, of_palmas_gpadc_match_tbl);
+
+static struct platform_driver palmas_gpadc_driver = {
+	.probe = palmas_gpadc_probe,
+	.remove = palmas_gpadc_remove,
+	.driver = {
+		.name = MOD_NAME,
+		.pm = &palmas_pm_ops,
+		.of_match_table = of_palmas_gpadc_match_tbl,
+	},
+};
+
+static int __init palmas_gpadc_init(void)
+{
+	return platform_driver_register(&palmas_gpadc_driver);
+}
+module_init(palmas_gpadc_init);
+
+static void __exit palmas_gpadc_exit(void)
+{
+	platform_driver_unregister(&palmas_gpadc_driver);
+}
+module_exit(palmas_gpadc_exit);
+
+MODULE_DESCRIPTION("palmas GPADC driver");
+MODULE_AUTHOR("Pradeep Goudagunta<pgoudagunta@nvidia.com>");
+MODULE_ALIAS("platform:palmas-gpadc");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index ff6f7f63c8d9..bc58867d6e8d 100644
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -1,10 +1,11 @@
 /*
  * Copyright (C) 2014 Angelo Compagnucci <angelo.compagnucci@gmail.com>
  *
- * Driver for Texas Instruments' ADC128S052 and ADC122S021 ADC chip.
+ * Driver for Texas Instruments' ADC128S052, ADC122S021 and ADC124S021 ADC chip.
  * Datasheets can be found here:
  * http://www.ti.com/lit/ds/symlink/adc128s052.pdf
  * http://www.ti.com/lit/ds/symlink/adc122s021.pdf
+ * http://www.ti.com/lit/ds/symlink/adc124s021.pdf
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -114,9 +115,17 @@ static const struct iio_chan_spec adc122s021_channels[] = {
 	ADC128_VOLTAGE_CHANNEL(1),
 };
 
+static const struct iio_chan_spec adc124s021_channels[] = {
+	ADC128_VOLTAGE_CHANNEL(0),
+	ADC128_VOLTAGE_CHANNEL(1),
+	ADC128_VOLTAGE_CHANNEL(2),
+	ADC128_VOLTAGE_CHANNEL(3),
+};
+
 static const struct adc128_configuration adc128_config[] = {
 	{ adc128s052_channels, ARRAY_SIZE(adc128s052_channels) },
 	{ adc122s021_channels, ARRAY_SIZE(adc122s021_channels) },
+	{ adc124s021_channels, ARRAY_SIZE(adc124s021_channels) },
 };
 
 static const struct iio_info adc128_info = {
@@ -177,6 +186,7 @@ static int adc128_remove(struct spi_device *spi)
 static const struct of_device_id adc128_of_match[] = {
 	{ .compatible = "ti,adc128s052", },
 	{ .compatible = "ti,adc122s021", },
+	{ .compatible = "ti,adc124s021", },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, adc128_of_match);
@@ -184,6 +194,7 @@ MODULE_DEVICE_TABLE(of, adc128_of_match);
 static const struct spi_device_id adc128_id[] = {
 	{ "adc128s052", 0},	/* index into adc128_config */
 	{ "adc122s021",	1},
+	{ "adc124s021", 2},
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, adc128_id);
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c
new file mode 100644
index 000000000000..03e907028cb6
--- /dev/null
+++ b/drivers/iio/adc/ti-ads8688.c
@@ -0,0 +1,486 @@
+/*
+ * Copyright (C) 2015 Prevas A/S
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define ADS8688_CMD_REG(x)		(x << 8)
+#define ADS8688_CMD_REG_NOOP		0x00
+#define ADS8688_CMD_REG_RST		0x85
+#define ADS8688_CMD_REG_MAN_CH(chan)	(0xC0 | (4 * chan))
+#define ADS8688_CMD_DONT_CARE_BITS	16
+
+#define ADS8688_PROG_REG(x)		(x << 9)
+#define ADS8688_PROG_REG_RANGE_CH(chan)	(0x05 + chan)
+#define ADS8688_PROG_WR_BIT		BIT(8)
+#define ADS8688_PROG_DONT_CARE_BITS	8
+
+#define ADS8688_REG_PLUSMINUS25VREF	0
+#define ADS8688_REG_PLUSMINUS125VREF	1
+#define ADS8688_REG_PLUSMINUS0625VREF	2
+#define ADS8688_REG_PLUS25VREF		5
+#define ADS8688_REG_PLUS125VREF		6
+
+#define ADS8688_VREF_MV			4096
+#define ADS8688_REALBITS		16
+
+/*
+ * enum ads8688_range - ADS8688 reference voltage range
+ * @ADS8688_PLUSMINUS25VREF: Device is configured for input range ±2.5 * VREF
+ * @ADS8688_PLUSMINUS125VREF: Device is configured for input range ±1.25 * VREF
+ * @ADS8688_PLUSMINUS0625VREF: Device is configured for input range ±0.625 * VREF
+ * @ADS8688_PLUS25VREF: Device is configured for input range 0 - 2.5 * VREF
+ * @ADS8688_PLUS125VREF: Device is configured for input range 0 - 1.25 * VREF
+ */
+enum ads8688_range {
+	ADS8688_PLUSMINUS25VREF,
+	ADS8688_PLUSMINUS125VREF,
+	ADS8688_PLUSMINUS0625VREF,
+	ADS8688_PLUS25VREF,
+	ADS8688_PLUS125VREF,
+};
+
+struct ads8688_chip_info {
+	const struct iio_chan_spec *channels;
+	unsigned int num_channels;
+};
+
+struct ads8688_state {
+	struct mutex			lock;
+	const struct ads8688_chip_info	*chip_info;
+	struct spi_device		*spi;
+	struct regulator		*reg;
+	unsigned int			vref_mv;
+	enum ads8688_range		range[8];
+	union {
+		__be32 d32;
+		u8 d8[4];
+	} data[2] ____cacheline_aligned;
+};
+
+enum ads8688_id {
+	ID_ADS8684,
+	ID_ADS8688,
+};
+
+struct ads8688_ranges {
+	enum ads8688_range range;
+	unsigned int scale;
+	int offset;
+	u8 reg;
+};
+
+static const struct ads8688_ranges ads8688_range_def[5] = {
+	{
+		.range = ADS8688_PLUSMINUS25VREF,
+		.scale = 76295,
+		.offset = -(1 << (ADS8688_REALBITS - 1)),
+		.reg = ADS8688_REG_PLUSMINUS25VREF,
+	}, {
+		.range = ADS8688_PLUSMINUS125VREF,
+		.scale = 38148,
+		.offset = -(1 << (ADS8688_REALBITS - 1)),
+		.reg = ADS8688_REG_PLUSMINUS125VREF,
+	}, {
+		.range = ADS8688_PLUSMINUS0625VREF,
+		.scale = 19074,
+		.offset = -(1 << (ADS8688_REALBITS - 1)),
+		.reg = ADS8688_REG_PLUSMINUS0625VREF,
+	}, {
+		.range = ADS8688_PLUS25VREF,
+		.scale = 38148,
+		.offset = 0,
+		.reg = ADS8688_REG_PLUS25VREF,
+	}, {
+		.range = ADS8688_PLUS125VREF,
+		.scale = 19074,
+		.offset = 0,
+		.reg = ADS8688_REG_PLUS125VREF,
+	}
+};
+
+static ssize_t ads8688_show_scales(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct ads8688_state *st = iio_priv(dev_to_iio_dev(dev));
+
+	return sprintf(buf, "0.%09u 0.%09u 0.%09u\n",
+		       ads8688_range_def[0].scale * st->vref_mv,
+		       ads8688_range_def[1].scale * st->vref_mv,
+		       ads8688_range_def[2].scale * st->vref_mv);
+}
+
+static ssize_t ads8688_show_offsets(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d %d\n", ads8688_range_def[0].offset,
+		       ads8688_range_def[3].offset);
+}
+
+static IIO_DEVICE_ATTR(in_voltage_scale_available, S_IRUGO,
+		       ads8688_show_scales, NULL, 0);
+static IIO_DEVICE_ATTR(in_voltage_offset_available, S_IRUGO,
+		       ads8688_show_offsets, NULL, 0);
+
+static struct attribute *ads8688_attributes[] = {
+	&iio_dev_attr_in_voltage_scale_available.dev_attr.attr,
+	&iio_dev_attr_in_voltage_offset_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ads8688_attribute_group = {
+	.attrs = ads8688_attributes,
+};
+
+#define ADS8688_CHAN(index)					\
+{								\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.channel = index,					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)		\
+			      | BIT(IIO_CHAN_INFO_SCALE)	\
+			      | BIT(IIO_CHAN_INFO_OFFSET),	\
+}
+
+static const struct iio_chan_spec ads8684_channels[] = {
+	ADS8688_CHAN(0),
+	ADS8688_CHAN(1),
+	ADS8688_CHAN(2),
+	ADS8688_CHAN(3),
+};
+
+static const struct iio_chan_spec ads8688_channels[] = {
+	ADS8688_CHAN(0),
+	ADS8688_CHAN(1),
+	ADS8688_CHAN(2),
+	ADS8688_CHAN(3),
+	ADS8688_CHAN(4),
+	ADS8688_CHAN(5),
+	ADS8688_CHAN(6),
+	ADS8688_CHAN(7),
+};
+
+static int ads8688_prog_write(struct iio_dev *indio_dev, unsigned int addr,
+			      unsigned int val)
+{
+	struct ads8688_state *st = iio_priv(indio_dev);
+	u32 tmp;
+
+	tmp = ADS8688_PROG_REG(addr) | ADS8688_PROG_WR_BIT | val;
+	tmp <<= ADS8688_PROG_DONT_CARE_BITS;
+	st->data[0].d32 = cpu_to_be32(tmp);
+
+	return spi_write(st->spi, &st->data[0].d8[1], 3);
+}
+
+static int ads8688_reset(struct iio_dev *indio_dev)
+{
+	struct ads8688_state *st = iio_priv(indio_dev);
+	u32 tmp;
+
+	tmp = ADS8688_CMD_REG(ADS8688_CMD_REG_RST);
+	tmp <<= ADS8688_CMD_DONT_CARE_BITS;
+	st->data[0].d32 = cpu_to_be32(tmp);
+
+	return spi_write(st->spi, &st->data[0].d8[0], 4);
+}
+
+static int ads8688_read(struct iio_dev *indio_dev, unsigned int chan)
+{
+	struct ads8688_state *st = iio_priv(indio_dev);
+	int ret;
+	u32 tmp;
+	struct spi_transfer t[] = {
+		{
+			.tx_buf = &st->data[0].d8[0],
+			.len = 4,
+			.cs_change = 1,
+		}, {
+			.tx_buf = &st->data[1].d8[0],
+			.rx_buf = &st->data[1].d8[0],
+			.len = 4,
+		},
+	};
+
+	tmp = ADS8688_CMD_REG(ADS8688_CMD_REG_MAN_CH(chan));
+	tmp <<= ADS8688_CMD_DONT_CARE_BITS;
+	st->data[0].d32 = cpu_to_be32(tmp);
+
+	tmp = ADS8688_CMD_REG(ADS8688_CMD_REG_NOOP);
+	tmp <<= ADS8688_CMD_DONT_CARE_BITS;
+	st->data[1].d32 = cpu_to_be32(tmp);
+
+	ret = spi_sync_transfer(st->spi, t, ARRAY_SIZE(t));
+	if (ret < 0)
+		return ret;
+
+	return be32_to_cpu(st->data[1].d32) & 0xffff;
+}
+
+static int ads8688_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long m)
+{
+	int ret, offset;
+	unsigned long scale_mv;
+
+	struct ads8688_state *st = iio_priv(indio_dev);
+
+	mutex_lock(&st->lock);
+	switch (m) {
+	case IIO_CHAN_INFO_RAW:
+		ret = ads8688_read(indio_dev, chan->channel);
+		mutex_unlock(&st->lock);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		scale_mv = st->vref_mv;
+		scale_mv *= ads8688_range_def[st->range[chan->channel]].scale;
+		*val = 0;
+		*val2 = scale_mv;
+		mutex_unlock(&st->lock);
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_OFFSET:
+		offset = ads8688_range_def[st->range[chan->channel]].offset;
+		*val = offset;
+		mutex_unlock(&st->lock);
+		return IIO_VAL_INT;
+	}
+	mutex_unlock(&st->lock);
+
+	return -EINVAL;
+}
+
+static int ads8688_write_reg_range(struct iio_dev *indio_dev,
+				   struct iio_chan_spec const *chan,
+				   enum ads8688_range range)
+{
+	unsigned int tmp;
+	int ret;
+
+	tmp = ADS8688_PROG_REG_RANGE_CH(chan->channel);
+	ret = ads8688_prog_write(indio_dev, tmp, range);
+
+	return ret;
+}
+
+static int ads8688_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct ads8688_state *st = iio_priv(indio_dev);
+	unsigned int scale = 0;
+	int ret = -EINVAL, i, offset = 0;
+
+	mutex_lock(&st->lock);
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		/* If the offset is 0 the ±2.5 * VREF mode is not available */
+		offset = ads8688_range_def[st->range[chan->channel]].offset;
+		if (offset == 0 && val2 == ads8688_range_def[0].scale * st->vref_mv) {
+			mutex_unlock(&st->lock);
+			return -EINVAL;
+		}
+
+		/* Lookup new mode */
+		for (i = 0; i < ARRAY_SIZE(ads8688_range_def); i++)
+			if (val2 == ads8688_range_def[i].scale * st->vref_mv &&
+			    offset == ads8688_range_def[i].offset) {
+				ret = ads8688_write_reg_range(indio_dev, chan,
+					ads8688_range_def[i].reg);
+				break;
+			}
+		break;
+	case IIO_CHAN_INFO_OFFSET:
+		/*
+		 * There are only two available offsets:
+		 * 0 and -(1 << (ADS8688_REALBITS - 1))
+		 */
+		if (!(ads8688_range_def[0].offset == val ||
+		    ads8688_range_def[3].offset == val)) {
+			mutex_unlock(&st->lock);
+			return -EINVAL;
+		}
+
+		/*
+		 * If the device are in ±2.5 * VREF mode, it's not allowed to
+		 * switch to a mode where the offset is 0
+		 */
+		if (val == 0 &&
+		    st->range[chan->channel] == ADS8688_PLUSMINUS25VREF) {
+			mutex_unlock(&st->lock);
+			return -EINVAL;
+		}
+
+		scale = ads8688_range_def[st->range[chan->channel]].scale;
+
+		/* Lookup new mode */
+		for (i = 0; i < ARRAY_SIZE(ads8688_range_def); i++)
+			if (val == ads8688_range_def[i].offset &&
+			    scale == ads8688_range_def[i].scale) {
+				ret = ads8688_write_reg_range(indio_dev, chan,
+					ads8688_range_def[i].reg);
+				break;
+			}
+		break;
+	}
+
+	if (!ret)
+		st->range[chan->channel] = ads8688_range_def[i].range;
+
+	mutex_unlock(&st->lock);
+
+	return ret;
+}
+
+static int ads8688_write_raw_get_fmt(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *chan,
+				     long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_OFFSET:
+		return IIO_VAL_INT;
+	}
+
+	return -EINVAL;
+}
+
+static const struct iio_info ads8688_info = {
+	.read_raw = &ads8688_read_raw,
+	.write_raw = &ads8688_write_raw,
+	.write_raw_get_fmt = &ads8688_write_raw_get_fmt,
+	.attrs = &ads8688_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+static const struct ads8688_chip_info ads8688_chip_info_tbl[] = {
+	[ID_ADS8684] = {
+		.channels = ads8684_channels,
+		.num_channels = ARRAY_SIZE(ads8684_channels),
+	},
+	[ID_ADS8688] = {
+		.channels = ads8688_channels,
+		.num_channels = ARRAY_SIZE(ads8688_channels),
+	},
+};
+
+static int ads8688_probe(struct spi_device *spi)
+{
+	struct ads8688_state *st;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (indio_dev == NULL)
+		return -ENOMEM;
+
+	st = iio_priv(indio_dev);
+
+	st->reg = devm_regulator_get_optional(&spi->dev, "vref");
+	if (!IS_ERR(st->reg)) {
+		ret = regulator_enable(st->reg);
+		if (ret)
+			return ret;
+
+		ret = regulator_get_voltage(st->reg);
+		if (ret < 0)
+			goto error_out;
+
+		st->vref_mv = ret / 1000;
+	} else {
+		/* Use internal reference */
+		st->vref_mv = ADS8688_VREF_MV;
+	}
+
+	st->chip_info =	&ads8688_chip_info_tbl[spi_get_device_id(spi)->driver_data];
+
+	spi->mode = SPI_MODE_1;
+
+	spi_set_drvdata(spi, indio_dev);
+
+	st->spi = spi;
+
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = st->chip_info->channels;
+	indio_dev->num_channels = st->chip_info->num_channels;
+	indio_dev->info = &ads8688_info;
+
+	ads8688_reset(indio_dev);
+
+	mutex_init(&st->lock);
+
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto error_out;
+
+	return 0;
+
+error_out:
+	if (!IS_ERR_OR_NULL(st->reg))
+		regulator_disable(st->reg);
+
+	return ret;
+}
+
+static int ads8688_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct ads8688_state *st = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	if (!IS_ERR_OR_NULL(st->reg))
+		regulator_disable(st->reg);
+
+	return 0;
+}
+
+static const struct spi_device_id ads8688_id[] = {
+	{"ads8684", ID_ADS8684},
+	{"ads8688", ID_ADS8688},
+	{}
+};
+MODULE_DEVICE_TABLE(spi, ads8688_id);
+
+static const struct of_device_id ads8688_of_match[] = {
+	{ .compatible = "ti,ads8684" },
+	{ .compatible = "ti,ads8688" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ads8688_of_match);
+
+static struct spi_driver ads8688_driver = {
+	.driver = {
+		.name	= "ads8688",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ads8688_probe,
+	.remove		= ads8688_remove,
+	.id_table	= ads8688_id,
+};
+module_spi_driver(ads8688_driver);
+
+MODULE_AUTHOR("Sean Nyekjaer <sean.nyekjaer@prevas.dk>");
+MODULE_DESCRIPTION("Texas Instruments ADS8688 driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 02e636a1c49a..0a6beb3d99cb 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -803,7 +803,7 @@ err:
 	return ret;
 }
 
-static struct iio_buffer_setup_ops xadc_buffer_ops = {
+static const struct iio_buffer_setup_ops xadc_buffer_ops = {
 	.preenable = &xadc_preenable,
 	.postenable = &iio_triggered_buffer_postenable,
 	.predisable = &iio_triggered_buffer_predisable,
diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig
index 0a7b2fd3699b..4ffd3db7817f 100644
--- a/drivers/iio/buffer/Kconfig
+++ b/drivers/iio/buffer/Kconfig
@@ -9,6 +9,26 @@ config IIO_BUFFER_CB
 	  Should be selected by any drivers that do in-kernel push
 	  usage.  That is, those where the data is pushed to the consumer.
 
+config IIO_BUFFER_DMA
+	tristate
+	help
+	  Provides the generic IIO DMA buffer infrastructure that can be used by
+	  drivers for devices with DMA support to implement the IIO buffer.
+
+	  Should be selected by drivers that want to use the generic DMA buffer
+	  infrastructure.
+
+config IIO_BUFFER_DMAENGINE
+	tristate
+	select IIO_BUFFER_DMA
+	help
+	  Provides a bonding of the generic IIO DMA buffer infrastructure with the
+	  DMAengine framework. This can be used by converter drivers with a DMA port
+	  connected to an external DMA controller which is supported by the
+	  DMAengine framework.
+
+	  Should be selected by drivers that want to use this functionality.
+
 config IIO_KFIFO_BUF
 	tristate "Industrial I/O buffering based on kfifo"
 	help
diff --git a/drivers/iio/buffer/Makefile b/drivers/iio/buffer/Makefile
index 4d193b9a9123..85beaae831ae 100644
--- a/drivers/iio/buffer/Makefile
+++ b/drivers/iio/buffer/Makefile
@@ -4,5 +4,7 @@
 
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_IIO_BUFFER_CB) += industrialio-buffer-cb.o
+obj-$(CONFIG_IIO_BUFFER_DMA) += industrialio-buffer-dma.o
+obj-$(CONFIG_IIO_BUFFER_DMAENGINE) += industrialio-buffer-dmaengine.o
 obj-$(CONFIG_IIO_TRIGGERED_BUFFER) += industrialio-triggered-buffer.o
 obj-$(CONFIG_IIO_KFIFO_BUF) += kfifo_buf.o
diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
new file mode 100644
index 000000000000..212cbedc7abb
--- /dev/null
+++ b/drivers/iio/buffer/industrialio-buffer-dma.c
@@ -0,0 +1,683 @@
+/*
+ * Copyright 2013-2015 Analog Devices Inc.
+ *  Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/poll.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/buffer-dma.h>
+#include <linux/dma-mapping.h>
+#include <linux/sizes.h>
+
+/*
+ * For DMA buffers the storage is sub-divided into so called blocks. Each block
+ * has its own memory buffer. The size of the block is the granularity at which
+ * memory is exchanged between the hardware and the application. Increasing the
+ * basic unit of data exchange from one sample to one block decreases the
+ * management overhead that is associated with each sample. E.g. if we say the
+ * management overhead for one exchange is x and the unit of exchange is one
+ * sample the overhead will be x for each sample. Whereas when using a block
+ * which contains n samples the overhead per sample is reduced to x/n. This
+ * allows to achieve much higher samplerates than what can be sustained with
+ * the one sample approach.
+ *
+ * Blocks are exchanged between the DMA controller and the application via the
+ * means of two queues. The incoming queue and the outgoing queue. Blocks on the
+ * incoming queue are waiting for the DMA controller to pick them up and fill
+ * them with data. Block on the outgoing queue have been filled with data and
+ * are waiting for the application to dequeue them and read the data.
+ *
+ * A block can be in one of the following states:
+ *  * Owned by the application. In this state the application can read data from
+ *    the block.
+ *  * On the incoming list: Blocks on the incoming list are queued up to be
+ *    processed by the DMA controller.
+ *  * Owned by the DMA controller: The DMA controller is processing the block
+ *    and filling it with data.
+ *  * On the outgoing list: Blocks on the outgoing list have been successfully
+ *    processed by the DMA controller and contain data. They can be dequeued by
+ *    the application.
+ *  * Dead: A block that is dead has been marked as to be freed. It might still
+ *    be owned by either the application or the DMA controller at the moment.
+ *    But once they are done processing it instead of going to either the
+ *    incoming or outgoing queue the block will be freed.
+ *
+ * In addition to this blocks are reference counted and the memory associated
+ * with both the block structure as well as the storage memory for the block
+ * will be freed when the last reference to the block is dropped. This means a
+ * block must not be accessed without holding a reference.
+ *
+ * The iio_dma_buffer implementation provides a generic infrastructure for
+ * managing the blocks.
+ *
+ * A driver for a specific piece of hardware that has DMA capabilities need to
+ * implement the submit() callback from the iio_dma_buffer_ops structure. This
+ * callback is supposed to initiate the DMA transfer copying data from the
+ * converter to the memory region of the block. Once the DMA transfer has been
+ * completed the driver must call iio_dma_buffer_block_done() for the completed
+ * block.
+ *
+ * Prior to this it must set the bytes_used field of the block contains
+ * the actual number of bytes in the buffer. Typically this will be equal to the
+ * size of the block, but if the DMA hardware has certain alignment requirements
+ * for the transfer length it might choose to use less than the full size. In
+ * either case it is expected that bytes_used is a multiple of the bytes per
+ * datum, i.e. the block must not contain partial samples.
+ *
+ * The driver must call iio_dma_buffer_block_done() for each block it has
+ * received through its submit_block() callback, even if it does not actually
+ * perform a DMA transfer for the block, e.g. because the buffer was disabled
+ * before the block transfer was started. In this case it should set bytes_used
+ * to 0.
+ *
+ * In addition it is recommended that a driver implements the abort() callback.
+ * It will be called when the buffer is disabled and can be used to cancel
+ * pending and stop active transfers.
+ *
+ * The specific driver implementation should use the default callback
+ * implementations provided by this module for the iio_buffer_access_funcs
+ * struct. It may overload some callbacks with custom variants if the hardware
+ * has special requirements that are not handled by the generic functions. If a
+ * driver chooses to overload a callback it has to ensure that the generic
+ * callback is called from within the custom callback.
+ */
+
+static void iio_buffer_block_release(struct kref *kref)
+{
+	struct iio_dma_buffer_block *block = container_of(kref,
+		struct iio_dma_buffer_block, kref);
+
+	WARN_ON(block->state != IIO_BLOCK_STATE_DEAD);
+
+	dma_free_coherent(block->queue->dev, PAGE_ALIGN(block->size),
+					block->vaddr, block->phys_addr);
+
+	iio_buffer_put(&block->queue->buffer);
+	kfree(block);
+}
+
+static void iio_buffer_block_get(struct iio_dma_buffer_block *block)
+{
+	kref_get(&block->kref);
+}
+
+static void iio_buffer_block_put(struct iio_dma_buffer_block *block)
+{
+	kref_put(&block->kref, iio_buffer_block_release);
+}
+
+/*
+ * dma_free_coherent can sleep, hence we need to take some special care to be
+ * able to drop a reference from an atomic context.
+ */
+static LIST_HEAD(iio_dma_buffer_dead_blocks);
+static DEFINE_SPINLOCK(iio_dma_buffer_dead_blocks_lock);
+
+static void iio_dma_buffer_cleanup_worker(struct work_struct *work)
+{
+	struct iio_dma_buffer_block *block, *_block;
+	LIST_HEAD(block_list);
+
+	spin_lock_irq(&iio_dma_buffer_dead_blocks_lock);
+	list_splice_tail_init(&iio_dma_buffer_dead_blocks, &block_list);
+	spin_unlock_irq(&iio_dma_buffer_dead_blocks_lock);
+
+	list_for_each_entry_safe(block, _block, &block_list, head)
+		iio_buffer_block_release(&block->kref);
+}
+static DECLARE_WORK(iio_dma_buffer_cleanup_work, iio_dma_buffer_cleanup_worker);
+
+static void iio_buffer_block_release_atomic(struct kref *kref)
+{
+	struct iio_dma_buffer_block *block;
+	unsigned long flags;
+
+	block = container_of(kref, struct iio_dma_buffer_block, kref);
+
+	spin_lock_irqsave(&iio_dma_buffer_dead_blocks_lock, flags);
+	list_add_tail(&block->head, &iio_dma_buffer_dead_blocks);
+	spin_unlock_irqrestore(&iio_dma_buffer_dead_blocks_lock, flags);
+
+	schedule_work(&iio_dma_buffer_cleanup_work);
+}
+
+/*
+ * Version of iio_buffer_block_put() that can be called from atomic context
+ */
+static void iio_buffer_block_put_atomic(struct iio_dma_buffer_block *block)
+{
+	kref_put(&block->kref, iio_buffer_block_release_atomic);
+}
+
+static struct iio_dma_buffer_queue *iio_buffer_to_queue(struct iio_buffer *buf)
+{
+	return container_of(buf, struct iio_dma_buffer_queue, buffer);
+}
+
+static struct iio_dma_buffer_block *iio_dma_buffer_alloc_block(
+	struct iio_dma_buffer_queue *queue, size_t size)
+{
+	struct iio_dma_buffer_block *block;
+
+	block = kzalloc(sizeof(*block), GFP_KERNEL);
+	if (!block)
+		return NULL;
+
+	block->vaddr = dma_alloc_coherent(queue->dev, PAGE_ALIGN(size),
+		&block->phys_addr, GFP_KERNEL);
+	if (!block->vaddr) {
+		kfree(block);
+		return NULL;
+	}
+
+	block->size = size;
+	block->state = IIO_BLOCK_STATE_DEQUEUED;
+	block->queue = queue;
+	INIT_LIST_HEAD(&block->head);
+	kref_init(&block->kref);
+
+	iio_buffer_get(&queue->buffer);
+
+	return block;
+}
+
+static void _iio_dma_buffer_block_done(struct iio_dma_buffer_block *block)
+{
+	struct iio_dma_buffer_queue *queue = block->queue;
+
+	/*
+	 * The buffer has already been freed by the application, just drop the
+	 * reference.
+	 */
+	if (block->state != IIO_BLOCK_STATE_DEAD) {
+		block->state = IIO_BLOCK_STATE_DONE;
+		list_add_tail(&block->head, &queue->outgoing);
+	}
+}
+
+/**
+ * iio_dma_buffer_block_done() - Indicate that a block has been completed
+ * @block: The completed block
+ *
+ * Should be called when the DMA controller has finished handling the block to
+ * pass back ownership of the block to the queue.
+ */
+void iio_dma_buffer_block_done(struct iio_dma_buffer_block *block)
+{
+	struct iio_dma_buffer_queue *queue = block->queue;
+	unsigned long flags;
+
+	spin_lock_irqsave(&queue->list_lock, flags);
+	_iio_dma_buffer_block_done(block);
+	spin_unlock_irqrestore(&queue->list_lock, flags);
+
+	iio_buffer_block_put_atomic(block);
+	wake_up_interruptible_poll(&queue->buffer.pollq, POLLIN | POLLRDNORM);
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_block_done);
+
+/**
+ * iio_dma_buffer_block_list_abort() - Indicate that a list block has been
+ *   aborted
+ * @queue: Queue for which to complete blocks.
+ * @list: List of aborted blocks. All blocks in this list must be from @queue.
+ *
+ * Typically called from the abort() callback after the DMA controller has been
+ * stopped. This will set bytes_used to 0 for each block in the list and then
+ * hand the blocks back to the queue.
+ */
+void iio_dma_buffer_block_list_abort(struct iio_dma_buffer_queue *queue,
+	struct list_head *list)
+{
+	struct iio_dma_buffer_block *block, *_block;
+	unsigned long flags;
+
+	spin_lock_irqsave(&queue->list_lock, flags);
+	list_for_each_entry_safe(block, _block, list, head) {
+		list_del(&block->head);
+		block->bytes_used = 0;
+		_iio_dma_buffer_block_done(block);
+		iio_buffer_block_put_atomic(block);
+	}
+	spin_unlock_irqrestore(&queue->list_lock, flags);
+
+	wake_up_interruptible_poll(&queue->buffer.pollq, POLLIN | POLLRDNORM);
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_block_list_abort);
+
+static bool iio_dma_block_reusable(struct iio_dma_buffer_block *block)
+{
+	/*
+	 * If the core owns the block it can be re-used. This should be the
+	 * default case when enabling the buffer, unless the DMA controller does
+	 * not support abort and has not given back the block yet.
+	 */
+	switch (block->state) {
+	case IIO_BLOCK_STATE_DEQUEUED:
+	case IIO_BLOCK_STATE_QUEUED:
+	case IIO_BLOCK_STATE_DONE:
+		return true;
+	default:
+		return false;
+	}
+}
+
+/**
+ * iio_dma_buffer_request_update() - DMA buffer request_update callback
+ * @buffer: The buffer which to request an update
+ *
+ * Should be used as the iio_dma_buffer_request_update() callback for
+ * iio_buffer_access_ops struct for DMA buffers.
+ */
+int iio_dma_buffer_request_update(struct iio_buffer *buffer)
+{
+	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
+	struct iio_dma_buffer_block *block;
+	bool try_reuse = false;
+	size_t size;
+	int ret = 0;
+	int i;
+
+	/*
+	 * Split the buffer into two even parts. This is used as a double
+	 * buffering scheme with usually one block at a time being used by the
+	 * DMA and the other one by the application.
+	 */
+	size = DIV_ROUND_UP(queue->buffer.bytes_per_datum *
+		queue->buffer.length, 2);
+
+	mutex_lock(&queue->lock);
+
+	/* Allocations are page aligned */
+	if (PAGE_ALIGN(queue->fileio.block_size) == PAGE_ALIGN(size))
+		try_reuse = true;
+
+	queue->fileio.block_size = size;
+	queue->fileio.active_block = NULL;
+
+	spin_lock_irq(&queue->list_lock);
+	for (i = 0; i < 2; i++) {
+		block = queue->fileio.blocks[i];
+
+		/* If we can't re-use it free it */
+		if (block && (!iio_dma_block_reusable(block) || !try_reuse))
+			block->state = IIO_BLOCK_STATE_DEAD;
+	}
+
+	/*
+	 * At this point all blocks are either owned by the core or marked as
+	 * dead. This means we can reset the lists without having to fear
+	 * corrution.
+	 */
+	INIT_LIST_HEAD(&queue->outgoing);
+	spin_unlock_irq(&queue->list_lock);
+
+	INIT_LIST_HEAD(&queue->incoming);
+
+	for (i = 0; i < 2; i++) {
+		if (queue->fileio.blocks[i]) {
+			block = queue->fileio.blocks[i];
+			if (block->state == IIO_BLOCK_STATE_DEAD) {
+				/* Could not reuse it */
+				iio_buffer_block_put(block);
+				block = NULL;
+			} else {
+				block->size = size;
+			}
+		} else {
+			block = NULL;
+		}
+
+		if (!block) {
+			block = iio_dma_buffer_alloc_block(queue, size);
+			if (!block) {
+				ret = -ENOMEM;
+				goto out_unlock;
+			}
+			queue->fileio.blocks[i] = block;
+		}
+
+		block->state = IIO_BLOCK_STATE_QUEUED;
+		list_add_tail(&block->head, &queue->incoming);
+	}
+
+out_unlock:
+	mutex_unlock(&queue->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
+
+static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
+	struct iio_dma_buffer_block *block)
+{
+	int ret;
+
+	/*
+	 * If the hardware has already been removed we put the block into
+	 * limbo. It will neither be on the incoming nor outgoing list, nor will
+	 * it ever complete. It will just wait to be freed eventually.
+	 */
+	if (!queue->ops)
+		return;
+
+	block->state = IIO_BLOCK_STATE_ACTIVE;
+	iio_buffer_block_get(block);
+	ret = queue->ops->submit(queue, block);
+	if (ret) {
+		/*
+		 * This is a bit of a problem and there is not much we can do
+		 * other then wait for the buffer to be disabled and re-enabled
+		 * and try again. But it should not really happen unless we run
+		 * out of memory or something similar.
+		 *
+		 * TODO: Implement support in the IIO core to allow buffers to
+		 * notify consumers that something went wrong and the buffer
+		 * should be disabled.
+		 */
+		iio_buffer_block_put(block);
+	}
+}
+
+/**
+ * iio_dma_buffer_enable() - Enable DMA buffer
+ * @buffer: IIO buffer to enable
+ * @indio_dev: IIO device the buffer is attached to
+ *
+ * Needs to be called when the device that the buffer is attached to starts
+ * sampling. Typically should be the iio_buffer_access_ops enable callback.
+ *
+ * This will allocate the DMA buffers and start the DMA transfers.
+ */
+int iio_dma_buffer_enable(struct iio_buffer *buffer,
+	struct iio_dev *indio_dev)
+{
+	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
+	struct iio_dma_buffer_block *block, *_block;
+
+	mutex_lock(&queue->lock);
+	queue->active = true;
+	list_for_each_entry_safe(block, _block, &queue->incoming, head) {
+		list_del(&block->head);
+		iio_dma_buffer_submit_block(queue, block);
+	}
+	mutex_unlock(&queue->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_enable);
+
+/**
+ * iio_dma_buffer_disable() - Disable DMA buffer
+ * @buffer: IIO DMA buffer to disable
+ * @indio_dev: IIO device the buffer is attached to
+ *
+ * Needs to be called when the device that the buffer is attached to stops
+ * sampling. Typically should be the iio_buffer_access_ops disable callback.
+ */
+int iio_dma_buffer_disable(struct iio_buffer *buffer,
+	struct iio_dev *indio_dev)
+{
+	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
+
+	mutex_lock(&queue->lock);
+	queue->active = false;
+
+	if (queue->ops && queue->ops->abort)
+		queue->ops->abort(queue);
+	mutex_unlock(&queue->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_disable);
+
+static void iio_dma_buffer_enqueue(struct iio_dma_buffer_queue *queue,
+	struct iio_dma_buffer_block *block)
+{
+	if (block->state == IIO_BLOCK_STATE_DEAD) {
+		iio_buffer_block_put(block);
+	} else if (queue->active) {
+		iio_dma_buffer_submit_block(queue, block);
+	} else {
+		block->state = IIO_BLOCK_STATE_QUEUED;
+		list_add_tail(&block->head, &queue->incoming);
+	}
+}
+
+static struct iio_dma_buffer_block *iio_dma_buffer_dequeue(
+	struct iio_dma_buffer_queue *queue)
+{
+	struct iio_dma_buffer_block *block;
+
+	spin_lock_irq(&queue->list_lock);
+	block = list_first_entry_or_null(&queue->outgoing, struct
+		iio_dma_buffer_block, head);
+	if (block != NULL) {
+		list_del(&block->head);
+		block->state = IIO_BLOCK_STATE_DEQUEUED;
+	}
+	spin_unlock_irq(&queue->list_lock);
+
+	return block;
+}
+
+/**
+ * iio_dma_buffer_read() - DMA buffer read callback
+ * @buffer: Buffer to read form
+ * @n: Number of bytes to read
+ * @user_buffer: Userspace buffer to copy the data to
+ *
+ * Should be used as the read_first_n callback for iio_buffer_access_ops
+ * struct for DMA buffers.
+ */
+int iio_dma_buffer_read(struct iio_buffer *buffer, size_t n,
+	char __user *user_buffer)
+{
+	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
+	struct iio_dma_buffer_block *block;
+	int ret;
+
+	if (n < buffer->bytes_per_datum)
+		return -EINVAL;
+
+	mutex_lock(&queue->lock);
+
+	if (!queue->fileio.active_block) {
+		block = iio_dma_buffer_dequeue(queue);
+		if (block == NULL) {
+			ret = 0;
+			goto out_unlock;
+		}
+		queue->fileio.pos = 0;
+		queue->fileio.active_block = block;
+	} else {
+		block = queue->fileio.active_block;
+	}
+
+	n = rounddown(n, buffer->bytes_per_datum);
+	if (n > block->bytes_used - queue->fileio.pos)
+		n = block->bytes_used - queue->fileio.pos;
+
+	if (copy_to_user(user_buffer, block->vaddr + queue->fileio.pos, n)) {
+		ret = -EFAULT;
+		goto out_unlock;
+	}
+
+	queue->fileio.pos += n;
+
+	if (queue->fileio.pos == block->bytes_used) {
+		queue->fileio.active_block = NULL;
+		iio_dma_buffer_enqueue(queue, block);
+	}
+
+	ret = n;
+
+out_unlock:
+	mutex_unlock(&queue->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_read);
+
+/**
+ * iio_dma_buffer_data_available() - DMA buffer data_available callback
+ * @buf: Buffer to check for data availability
+ *
+ * Should be used as the data_available callback for iio_buffer_access_ops
+ * struct for DMA buffers.
+ */
+size_t iio_dma_buffer_data_available(struct iio_buffer *buf)
+{
+	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buf);
+	struct iio_dma_buffer_block *block;
+	size_t data_available = 0;
+
+	/*
+	 * For counting the available bytes we'll use the size of the block not
+	 * the number of actual bytes available in the block. Otherwise it is
+	 * possible that we end up with a value that is lower than the watermark
+	 * but won't increase since all blocks are in use.
+	 */
+
+	mutex_lock(&queue->lock);
+	if (queue->fileio.active_block)
+		data_available += queue->fileio.active_block->size;
+
+	spin_lock_irq(&queue->list_lock);
+	list_for_each_entry(block, &queue->outgoing, head)
+		data_available += block->size;
+	spin_unlock_irq(&queue->list_lock);
+	mutex_unlock(&queue->lock);
+
+	return data_available;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_data_available);
+
+/**
+ * iio_dma_buffer_set_bytes_per_datum() - DMA buffer set_bytes_per_datum callback
+ * @buffer: Buffer to set the bytes-per-datum for
+ * @bpd: The new bytes-per-datum value
+ *
+ * Should be used as the set_bytes_per_datum callback for iio_buffer_access_ops
+ * struct for DMA buffers.
+ */
+int iio_dma_buffer_set_bytes_per_datum(struct iio_buffer *buffer, size_t bpd)
+{
+	buffer->bytes_per_datum = bpd;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_set_bytes_per_datum);
+
+/**
+ * iio_dma_buffer_set_length - DMA buffer set_length callback
+ * @buffer: Buffer to set the length for
+ * @length: The new buffer length
+ *
+ * Should be used as the set_length callback for iio_buffer_access_ops
+ * struct for DMA buffers.
+ */
+int iio_dma_buffer_set_length(struct iio_buffer *buffer, int length)
+{
+	/* Avoid an invalid state */
+	if (length < 2)
+		length = 2;
+	buffer->length = length;
+	buffer->watermark = length / 2;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_set_length);
+
+/**
+ * iio_dma_buffer_init() - Initialize DMA buffer queue
+ * @queue: Buffer to initialize
+ * @dev: DMA device
+ * @ops: DMA buffer queue callback operations
+ *
+ * The DMA device will be used by the queue to do DMA memory allocations. So it
+ * should refer to the device that will perform the DMA to ensure that
+ * allocations are done from a memory region that can be accessed by the device.
+ */
+int iio_dma_buffer_init(struct iio_dma_buffer_queue *queue,
+	struct device *dev, const struct iio_dma_buffer_ops *ops)
+{
+	iio_buffer_init(&queue->buffer);
+	queue->buffer.length = PAGE_SIZE;
+	queue->buffer.watermark = queue->buffer.length / 2;
+	queue->dev = dev;
+	queue->ops = ops;
+
+	INIT_LIST_HEAD(&queue->incoming);
+	INIT_LIST_HEAD(&queue->outgoing);
+
+	mutex_init(&queue->lock);
+	spin_lock_init(&queue->list_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
+
+/**
+ * iio_dma_buffer_exit() - Cleanup DMA buffer queue
+ * @queue: Buffer to cleanup
+ *
+ * After this function has completed it is safe to free any resources that are
+ * associated with the buffer and are accessed inside the callback operations.
+ */
+void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
+{
+	unsigned int i;
+
+	mutex_lock(&queue->lock);
+
+	spin_lock_irq(&queue->list_lock);
+	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
+		if (!queue->fileio.blocks[i])
+			continue;
+		queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
+	}
+	INIT_LIST_HEAD(&queue->outgoing);
+	spin_unlock_irq(&queue->list_lock);
+
+	INIT_LIST_HEAD(&queue->incoming);
+
+	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
+		if (!queue->fileio.blocks[i])
+			continue;
+		iio_buffer_block_put(queue->fileio.blocks[i]);
+		queue->fileio.blocks[i] = NULL;
+	}
+	queue->fileio.active_block = NULL;
+	queue->ops = NULL;
+
+	mutex_unlock(&queue->lock);
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_exit);
+
+/**
+ * iio_dma_buffer_release() - Release final buffer resources
+ * @queue: Buffer to release
+ *
+ * Frees resources that can't yet be freed in iio_dma_buffer_exit(). Should be
+ * called in the buffers release callback implementation right before freeing
+ * the memory associated with the buffer.
+ */
+void iio_dma_buffer_release(struct iio_dma_buffer_queue *queue)
+{
+	mutex_destroy(&queue->lock);
+}
+EXPORT_SYMBOL_GPL(iio_dma_buffer_release);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("DMA buffer for the IIO framework");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
new file mode 100644
index 000000000000..ebdb838d3a1c
--- /dev/null
+++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2014-2015 Analog Devices Inc.
+ *  Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/buffer-dma.h>
+#include <linux/iio/buffer-dmaengine.h>
+
+/*
+ * The IIO DMAengine buffer combines the generic IIO DMA buffer infrastructure
+ * with the DMAengine framework. The generic IIO DMA buffer infrastructure is
+ * used to manage the buffer memory and implement the IIO buffer operations
+ * while the DMAengine framework is used to perform the DMA transfers. Combined
+ * this results in a device independent fully functional DMA buffer
+ * implementation that can be used by device drivers for peripherals which are
+ * connected to a DMA controller which has a DMAengine driver implementation.
+ */
+
+struct dmaengine_buffer {
+	struct iio_dma_buffer_queue queue;
+
+	struct dma_chan *chan;
+	struct list_head active;
+
+	size_t align;
+	size_t max_size;
+};
+
+static struct dmaengine_buffer *iio_buffer_to_dmaengine_buffer(
+		struct iio_buffer *buffer)
+{
+	return container_of(buffer, struct dmaengine_buffer, queue.buffer);
+}
+
+static void iio_dmaengine_buffer_block_done(void *data)
+{
+	struct iio_dma_buffer_block *block = data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&block->queue->list_lock, flags);
+	list_del(&block->head);
+	spin_unlock_irqrestore(&block->queue->list_lock, flags);
+	iio_dma_buffer_block_done(block);
+}
+
+static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue,
+	struct iio_dma_buffer_block *block)
+{
+	struct dmaengine_buffer *dmaengine_buffer =
+		iio_buffer_to_dmaengine_buffer(&queue->buffer);
+	struct dma_async_tx_descriptor *desc;
+	dma_cookie_t cookie;
+
+	block->bytes_used = min(block->size, dmaengine_buffer->max_size);
+	block->bytes_used = rounddown(block->bytes_used,
+			dmaengine_buffer->align);
+
+	desc = dmaengine_prep_slave_single(dmaengine_buffer->chan,
+		block->phys_addr, block->bytes_used, DMA_DEV_TO_MEM,
+		DMA_PREP_INTERRUPT);
+	if (!desc)
+		return -ENOMEM;
+
+	desc->callback = iio_dmaengine_buffer_block_done;
+	desc->callback_param = block;
+
+	cookie = dmaengine_submit(desc);
+	if (dma_submit_error(cookie))
+		return dma_submit_error(cookie);
+
+	spin_lock_irq(&dmaengine_buffer->queue.list_lock);
+	list_add_tail(&block->head, &dmaengine_buffer->active);
+	spin_unlock_irq(&dmaengine_buffer->queue.list_lock);
+
+	dma_async_issue_pending(dmaengine_buffer->chan);
+
+	return 0;
+}
+
+static void iio_dmaengine_buffer_abort(struct iio_dma_buffer_queue *queue)
+{
+	struct dmaengine_buffer *dmaengine_buffer =
+		iio_buffer_to_dmaengine_buffer(&queue->buffer);
+
+	dmaengine_terminate_all(dmaengine_buffer->chan);
+	/* FIXME: There is a slight chance of a race condition here.
+	 * dmaengine_terminate_all() does not guarantee that all transfer
+	 * callbacks have finished running. Need to introduce a
+	 * dmaengine_terminate_all_sync().
+	 */
+	iio_dma_buffer_block_list_abort(queue, &dmaengine_buffer->active);
+}
+
+static void iio_dmaengine_buffer_release(struct iio_buffer *buf)
+{
+	struct dmaengine_buffer *dmaengine_buffer =
+		iio_buffer_to_dmaengine_buffer(buf);
+
+	iio_dma_buffer_release(&dmaengine_buffer->queue);
+	kfree(dmaengine_buffer);
+}
+
+static const struct iio_buffer_access_funcs iio_dmaengine_buffer_ops = {
+	.read_first_n = iio_dma_buffer_read,
+	.set_bytes_per_datum = iio_dma_buffer_set_bytes_per_datum,
+	.set_length = iio_dma_buffer_set_length,
+	.request_update = iio_dma_buffer_request_update,
+	.enable = iio_dma_buffer_enable,
+	.disable = iio_dma_buffer_disable,
+	.data_available = iio_dma_buffer_data_available,
+	.release = iio_dmaengine_buffer_release,
+
+	.modes = INDIO_BUFFER_HARDWARE,
+	.flags = INDIO_BUFFER_FLAG_FIXED_WATERMARK,
+};
+
+static const struct iio_dma_buffer_ops iio_dmaengine_default_ops = {
+	.submit = iio_dmaengine_buffer_submit_block,
+	.abort = iio_dmaengine_buffer_abort,
+};
+
+/**
+ * iio_dmaengine_buffer_alloc() - Allocate new buffer which uses DMAengine
+ * @dev: Parent device for the buffer
+ * @channel: DMA channel name, typically "rx".
+ *
+ * This allocates a new IIO buffer which internally uses the DMAengine framework
+ * to perform its transfers. The parent device will be used to request the DMA
+ * channel.
+ *
+ * Once done using the buffer iio_dmaengine_buffer_free() should be used to
+ * release it.
+ */
+struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
+	const char *channel)
+{
+	struct dmaengine_buffer *dmaengine_buffer;
+	unsigned int width, src_width, dest_width;
+	struct dma_slave_caps caps;
+	struct dma_chan *chan;
+	int ret;
+
+	dmaengine_buffer = kzalloc(sizeof(*dmaengine_buffer), GFP_KERNEL);
+	if (!dmaengine_buffer)
+		return ERR_PTR(-ENOMEM);
+
+	chan = dma_request_slave_channel_reason(dev, channel);
+	if (IS_ERR(chan)) {
+		ret = PTR_ERR(chan);
+		goto err_free;
+	}
+
+	ret = dma_get_slave_caps(chan, &caps);
+	if (ret < 0)
+		goto err_free;
+
+	/* Needs to be aligned to the maximum of the minimums */
+	if (caps.src_addr_widths)
+		src_width = __ffs(caps.src_addr_widths);
+	else
+		src_width = 1;
+	if (caps.dst_addr_widths)
+		dest_width = __ffs(caps.dst_addr_widths);
+	else
+		dest_width = 1;
+	width = max(src_width, dest_width);
+
+	INIT_LIST_HEAD(&dmaengine_buffer->active);
+	dmaengine_buffer->chan = chan;
+	dmaengine_buffer->align = width;
+	dmaengine_buffer->max_size = dma_get_max_seg_size(chan->device->dev);
+
+	iio_dma_buffer_init(&dmaengine_buffer->queue, chan->device->dev,
+		&iio_dmaengine_default_ops);
+
+	dmaengine_buffer->queue.buffer.access = &iio_dmaengine_buffer_ops;
+
+	return &dmaengine_buffer->queue.buffer;
+
+err_free:
+	kfree(dmaengine_buffer);
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(iio_dmaengine_buffer_alloc);
+
+/**
+ * iio_dmaengine_buffer_free() - Free dmaengine buffer
+ * @buffer: Buffer to free
+ *
+ * Frees a buffer previously allocated with iio_dmaengine_buffer_alloc().
+ */
+void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
+{
+	struct dmaengine_buffer *dmaengine_buffer =
+		iio_buffer_to_dmaengine_buffer(buffer);
+
+	iio_dma_buffer_exit(&dmaengine_buffer->queue);
+	dma_release_channel(dmaengine_buffer->chan);
+
+	iio_buffer_put(buffer);
+}
+EXPORT_SYMBOL_GPL(iio_dmaengine_buffer_free);
diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig
index 3061b7299f0f..f16de61be46d 100644
--- a/drivers/iio/chemical/Kconfig
+++ b/drivers/iio/chemical/Kconfig
@@ -4,6 +4,14 @@
 
 menu "Chemical Sensors"
 
+config IAQCORE
+	tristate "AMS iAQ-Core VOC sensors"
+	depends on I2C
+	help
+	  Say Y here to build I2C interface support for the AMS
+	  iAQ-Core Continuous/Pulsed VOC (Volatile Organic Compounds)
+	  sensors
+
 config VZ89X
 	tristate "SGX Sensortech MiCS VZ89X VOC sensor"
 	depends on I2C
diff --git a/drivers/iio/chemical/Makefile b/drivers/iio/chemical/Makefile
index 7292f2ded587..167861fadfab 100644
--- a/drivers/iio/chemical/Makefile
+++ b/drivers/iio/chemical/Makefile
@@ -3,4 +3,5 @@
 #
 
 # When adding new entries keep the list in alphabetical order
+obj-$(CONFIG_IAQCORE)		+= ams-iaq-core.o
 obj-$(CONFIG_VZ89X)		+= vz89x.o
diff --git a/drivers/iio/chemical/ams-iaq-core.c b/drivers/iio/chemical/ams-iaq-core.c
new file mode 100644
index 000000000000..41a8e6f2e31d
--- /dev/null
+++ b/drivers/iio/chemical/ams-iaq-core.c
@@ -0,0 +1,200 @@
+/*
+ * ams-iaq-core.c - Support for AMS iAQ-Core VOC sensors
+ *
+ * Copyright (C) 2015 Matt Ranostay <mranostay@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+
+#define AMS_IAQCORE_DATA_SIZE		9
+
+#define AMS_IAQCORE_VOC_CO2_IDX		0
+#define AMS_IAQCORE_VOC_RESISTANCE_IDX	1
+#define AMS_IAQCORE_VOC_TVOC_IDX	2
+
+struct ams_iaqcore_reading {
+	__be16 co2_ppm;
+	u8 status;
+	__be32 resistance;
+	__be16 voc_ppb;
+} __attribute__((__packed__));
+
+struct ams_iaqcore_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	unsigned long last_update;
+
+	struct ams_iaqcore_reading buffer;
+};
+
+static const struct iio_chan_spec ams_iaqcore_channels[] = {
+	{
+		.type = IIO_CONCENTRATION,
+		.channel2 = IIO_MOD_CO2,
+		.modified = 1,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.address = AMS_IAQCORE_VOC_CO2_IDX,
+	},
+	{
+		.type = IIO_RESISTANCE,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.address = AMS_IAQCORE_VOC_RESISTANCE_IDX,
+	},
+	{
+		.type = IIO_CONCENTRATION,
+		.channel2 = IIO_MOD_VOC,
+		.modified = 1,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.address = AMS_IAQCORE_VOC_TVOC_IDX,
+	},
+};
+
+static int ams_iaqcore_read_measurement(struct ams_iaqcore_data *data)
+{
+	struct i2c_client *client = data->client;
+	int ret;
+
+	struct i2c_msg msg = {
+		.addr = client->addr,
+		.flags = client->flags | I2C_M_RD,
+		.len = AMS_IAQCORE_DATA_SIZE,
+		.buf = (char *) &data->buffer,
+	};
+
+	ret = i2c_transfer(client->adapter, &msg, 1);
+
+	return (ret == AMS_IAQCORE_DATA_SIZE) ? 0 : ret;
+}
+
+static int ams_iaqcore_get_measurement(struct ams_iaqcore_data *data)
+{
+	int ret;
+
+	/* sensor can only be polled once a second max per datasheet */
+	if (!time_after(jiffies, data->last_update + HZ))
+		return 0;
+
+	ret = ams_iaqcore_read_measurement(data);
+	if (ret < 0)
+		return ret;
+
+	data->last_update = jiffies;
+
+	return 0;
+}
+
+static int ams_iaqcore_read_raw(struct iio_dev *indio_dev,
+				struct iio_chan_spec const *chan, int *val,
+				int *val2, long mask)
+{
+	struct ams_iaqcore_data *data = iio_priv(indio_dev);
+	int ret;
+
+	if (mask != IIO_CHAN_INFO_PROCESSED)
+		return -EINVAL;
+
+	mutex_lock(&data->lock);
+	ret = ams_iaqcore_get_measurement(data);
+
+	if (ret)
+		goto err_out;
+
+	switch (chan->address) {
+	case AMS_IAQCORE_VOC_CO2_IDX:
+		*val = 0;
+		*val2 = be16_to_cpu(data->buffer.co2_ppm);
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	case AMS_IAQCORE_VOC_RESISTANCE_IDX:
+		*val = be32_to_cpu(data->buffer.resistance);
+		ret = IIO_VAL_INT;
+		break;
+	case AMS_IAQCORE_VOC_TVOC_IDX:
+		*val = 0;
+		*val2 = be16_to_cpu(data->buffer.voc_ppb);
+		ret = IIO_VAL_INT_PLUS_NANO;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+err_out:
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static const struct iio_info ams_iaqcore_info = {
+	.read_raw	= ams_iaqcore_read_raw,
+	.driver_module	= THIS_MODULE,
+};
+
+static int ams_iaqcore_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	struct iio_dev *indio_dev;
+	struct ams_iaqcore_data *data;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	/* so initial reading will complete */
+	data->last_update = jiffies - HZ;
+	mutex_init(&data->lock);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &ams_iaqcore_info,
+	indio_dev->name = dev_name(&client->dev);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	indio_dev->channels = ams_iaqcore_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ams_iaqcore_channels);
+
+	return devm_iio_device_register(&client->dev, indio_dev);
+}
+
+static const struct i2c_device_id ams_iaqcore_id[] = {
+	{ "ams-iaq-core", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ams_iaqcore_id);
+
+static const struct of_device_id ams_iaqcore_dt_ids[] = {
+	{ .compatible = "ams,iaq-core" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ams_iaqcore_dt_ids);
+
+static struct i2c_driver ams_iaqcore_driver = {
+	.driver = {
+		.name	= "ams-iaq-core",
+		.of_match_table = of_match_ptr(ams_iaqcore_dt_ids),
+	},
+	.probe = ams_iaqcore_probe,
+	.id_table = ams_iaqcore_id,
+};
+module_i2c_driver(ams_iaqcore_driver);
+
+MODULE_AUTHOR("Matt Ranostay <mranostay@gmail.com>");
+MODULE_DESCRIPTION("AMS iAQ-Core VOC sensors");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
index 11e59a5a5112..b8b804923230 100644
--- a/drivers/iio/chemical/vz89x.c
+++ b/drivers/iio/chemical/vz89x.c
@@ -34,8 +34,9 @@
 struct vz89x_data {
 	struct i2c_client *client;
 	struct mutex lock;
-	unsigned long last_update;
+	int (*xfer)(struct vz89x_data *data, u8 cmd);
 
+	unsigned long last_update;
 	u8 buffer[VZ89X_REG_MEASUREMENT_SIZE];
 };
 
@@ -100,27 +101,60 @@ static int vz89x_measurement_is_valid(struct vz89x_data *data)
 	return !!(data->buffer[VZ89X_REG_MEASUREMENT_SIZE - 1] > 0);
 }
 
-static int vz89x_get_measurement(struct vz89x_data *data)
+static int vz89x_i2c_xfer(struct vz89x_data *data, u8 cmd)
 {
+	struct i2c_client *client = data->client;
+	struct i2c_msg msg[2];
 	int ret;
-	int i;
+	u8 buf[3] = { cmd, 0, 0};
 
-	/* sensor can only be polled once a second max per datasheet */
-	if (!time_after(jiffies, data->last_update + HZ))
-		return 0;
+	msg[0].addr = client->addr;
+	msg[0].flags = client->flags;
+	msg[0].len = 3;
+	msg[0].buf  = (char *) &buf;
+
+	msg[1].addr = client->addr;
+	msg[1].flags = client->flags | I2C_M_RD;
+	msg[1].len = VZ89X_REG_MEASUREMENT_SIZE;
+	msg[1].buf = (char *) &data->buffer;
+
+	ret = i2c_transfer(client->adapter, msg, 2);
 
-	ret = i2c_smbus_write_word_data(data->client,
-					VZ89X_REG_MEASUREMENT, 0);
+	return (ret == 2) ? 0 : ret;
+}
+
+static int vz89x_smbus_xfer(struct vz89x_data *data, u8 cmd)
+{
+	struct i2c_client *client = data->client;
+	int ret;
+	int i;
+
+	ret = i2c_smbus_write_word_data(client, cmd, 0);
 	if (ret < 0)
 		return ret;
 
 	for (i = 0; i < VZ89X_REG_MEASUREMENT_SIZE; i++) {
-		ret = i2c_smbus_read_byte(data->client);
+		ret = i2c_smbus_read_byte(client);
 		if (ret < 0)
 			return ret;
 		data->buffer[i] = ret;
 	}
 
+	return 0;
+}
+
+static int vz89x_get_measurement(struct vz89x_data *data)
+{
+	int ret;
+
+	/* sensor can only be polled once a second max per datasheet */
+	if (!time_after(jiffies, data->last_update + HZ))
+		return 0;
+
+	ret = data->xfer(data, VZ89X_REG_MEASUREMENT);
+	if (ret < 0)
+		return ret;
+
 	ret = vz89x_measurement_is_valid(data);
 	if (ret)
 		return -EAGAIN;
@@ -204,15 +238,19 @@ static int vz89x_probe(struct i2c_client *client,
 	struct iio_dev *indio_dev;
 	struct vz89x_data *data;
 
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA |
-				     I2C_FUNC_SMBUS_BYTE))
-		return -ENODEV;
-
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
-
 	data = iio_priv(indio_dev);
+
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		data->xfer = vz89x_i2c_xfer;
+	else if (i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BYTE))
+		data->xfer = vz89x_smbus_xfer;
+	else
+		return -ENOTSUPP;
+
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
 	data->last_update = jiffies - HZ;
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 25258e2c1a82..8447c31e27f2 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -18,9 +18,6 @@
 #include <asm/unaligned.h>
 #include <linux/iio/common/st_sensors.h>
 
-
-#define ST_SENSORS_WAI_ADDRESS		0x0f
-
 static inline u32 st_sensors_get_unaligned_le24(const u8 *p)
 {
 	return (s32)((p[0] | p[1] << 8 | p[2] << 16) << 8) >> 8;
diff --git a/drivers/iio/dummy/Kconfig b/drivers/iio/dummy/Kconfig
new file mode 100644
index 000000000000..71805ced1aae
--- /dev/null
+++ b/drivers/iio/dummy/Kconfig
@@ -0,0 +1,36 @@
+#
+# Industrial I/O subsystem Dummy Driver configuration
+#
+menu "IIO dummy driver"
+	depends on IIO
+
+config IIO_DUMMY_EVGEN
+	select IRQ_WORK
+	tristate
+
+config IIO_SIMPLE_DUMMY
+       tristate "An example driver with no hardware requirements"
+       help
+	 Driver intended mainly as documentation for how to write
+	 a driver. May also be useful for testing userspace code
+	 without hardware.
+
+if IIO_SIMPLE_DUMMY
+
+config IIO_SIMPLE_DUMMY_EVENTS
+       bool "Event generation support"
+       select IIO_DUMMY_EVGEN
+       help
+         Add some dummy events to the simple dummy driver.
+
+config IIO_SIMPLE_DUMMY_BUFFER
+	bool "Buffered capture support"
+	select IIO_BUFFER
+	select IIO_TRIGGER
+	select IIO_KFIFO_BUF
+	help
+	  Add buffered data capture to the simple dummy driver.
+
+endif # IIO_SIMPLE_DUMMY
+
+endmenu
diff --git a/drivers/iio/dummy/Makefile b/drivers/iio/dummy/Makefile
new file mode 100644
index 000000000000..0765e93d7804
--- /dev/null
+++ b/drivers/iio/dummy/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the IIO Dummy Driver
+#
+
+obj-$(CONFIG_IIO_SIMPLE_DUMMY) += iio_dummy.o
+iio_dummy-y := iio_simple_dummy.o
+iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_EVENTS) += iio_simple_dummy_events.o
+iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_BUFFER) += iio_simple_dummy_buffer.o
+
+obj-$(CONFIG_IIO_DUMMY_EVGEN) += iio_dummy_evgen.o
diff --git a/drivers/staging/iio/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c
index 9e83f348df51..9e83f348df51 100644
--- a/drivers/staging/iio/iio_dummy_evgen.c
+++ b/drivers/iio/dummy/iio_dummy_evgen.c
diff --git a/drivers/staging/iio/iio_dummy_evgen.h b/drivers/iio/dummy/iio_dummy_evgen.h
index d044b946e74a..d044b946e74a 100644
--- a/drivers/staging/iio/iio_dummy_evgen.h
+++ b/drivers/iio/dummy/iio_dummy_evgen.h
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/iio/dummy/iio_simple_dummy.c
index 43fe4ba7d0dc..43fe4ba7d0dc 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/iio/dummy/iio_simple_dummy.c
diff --git a/drivers/staging/iio/iio_simple_dummy.h b/drivers/iio/dummy/iio_simple_dummy.h
index b9069a180672..b9069a180672 100644
--- a/drivers/staging/iio/iio_simple_dummy.h
+++ b/drivers/iio/dummy/iio_simple_dummy.h
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/iio/dummy/iio_simple_dummy_buffer.c
index cf44a6f79431..cf44a6f79431 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/iio/dummy/iio_simple_dummy_buffer.c
diff --git a/drivers/staging/iio/iio_simple_dummy_events.c b/drivers/iio/dummy/iio_simple_dummy_events.c
index 6eb600ff7056..6eb600ff7056 100644
--- a/drivers/staging/iio/iio_simple_dummy_events.c
+++ b/drivers/iio/dummy/iio_simple_dummy_events.c
diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index f8d1c2210066..b04faf93e1bc 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -435,7 +435,9 @@ static int adis16136_initial_setup(struct iio_dev *indio_dev)
 	if (ret)
 		return ret;
 
-	sscanf(indio_dev->name, "adis%u\n", &device_id);
+	ret = sscanf(indio_dev->name, "adis%u\n", &device_id);
+	if (ret != 1)
+		return -EINVAL;
 
 	if (prod_id != device_id)
 		dev_warn(&indio_dev->dev, "Device ID(%u) and product ID(%u) do not match.",
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 02ff789852a0..bbce3b09ac45 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -1077,25 +1077,23 @@ int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
 		goto err_trigger_unregister;
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(dev, "unable to register iio device\n");
-		goto err_buffer_cleanup;
-	}
-
 	ret = pm_runtime_set_active(dev);
 	if (ret)
-		goto err_iio_unregister;
+		goto err_buffer_cleanup;
 
 	pm_runtime_enable(dev);
 	pm_runtime_set_autosuspend_delay(dev,
 					 BMG160_AUTO_SUSPEND_DELAY_MS);
 	pm_runtime_use_autosuspend(dev);
 
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(dev, "unable to register iio device\n");
+		goto err_buffer_cleanup;
+	}
+
 	return 0;
 
-err_iio_unregister:
-	iio_device_unregister(indio_dev);
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
@@ -1113,11 +1111,12 @@ void bmg160_core_remove(struct device *dev)
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct bmg160_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
 	pm_runtime_put_noidle(dev);
 
-	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 
 	if (data->dready_trig) {
diff --git a/drivers/iio/health/Kconfig b/drivers/iio/health/Kconfig
new file mode 100644
index 000000000000..a647679da805
--- /dev/null
+++ b/drivers/iio/health/Kconfig
@@ -0,0 +1,21 @@
+#
+# Health sensors
+#
+# When adding new entries keep the list in alphabetical order
+
+menu "Health sensors"
+
+config MAX30100
+	tristate "MAX30100 heart rate and pulse oximeter sensor"
+	depends on I2C
+	select REGMAP_I2C
+	select IIO_BUFFER
+	select IIO_KFIFO_BUF
+	help
+	  Say Y here to build I2C interface support for the Maxim
+	  MAX30100 heart rate, and pulse oximeter sensor.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called max30100.
+
+endmenu
diff --git a/drivers/iio/health/Makefile b/drivers/iio/health/Makefile
new file mode 100644
index 000000000000..7c475d7faad8
--- /dev/null
+++ b/drivers/iio/health/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for IIO Health sensors
+#
+
+# When adding new entries keep the list in alphabetical order
+
+obj-$(CONFIG_MAX30100)		+= max30100.o
diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c
new file mode 100644
index 000000000000..9d1c81f91dd7
--- /dev/null
+++ b/drivers/iio/health/max30100.c
@@ -0,0 +1,453 @@
+/*
+ * max30100.c - Support for MAX30100 heart rate and pulse oximeter sensor
+ *
+ * Copyright (C) 2015 Matt Ranostay <mranostay@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * TODO: allow LED current and pulse length controls via device tree properties
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/kfifo_buf.h>
+
+#define MAX30100_REGMAP_NAME	"max30100_regmap"
+#define MAX30100_DRV_NAME	"max30100"
+
+#define MAX30100_REG_INT_STATUS			0x00
+#define MAX30100_REG_INT_STATUS_PWR_RDY		BIT(0)
+#define MAX30100_REG_INT_STATUS_SPO2_RDY	BIT(4)
+#define MAX30100_REG_INT_STATUS_HR_RDY		BIT(5)
+#define MAX30100_REG_INT_STATUS_FIFO_RDY	BIT(7)
+
+#define MAX30100_REG_INT_ENABLE			0x01
+#define MAX30100_REG_INT_ENABLE_SPO2_EN		BIT(0)
+#define MAX30100_REG_INT_ENABLE_HR_EN		BIT(1)
+#define MAX30100_REG_INT_ENABLE_FIFO_EN		BIT(3)
+#define MAX30100_REG_INT_ENABLE_MASK		0xf0
+#define MAX30100_REG_INT_ENABLE_MASK_SHIFT	4
+
+#define MAX30100_REG_FIFO_WR_PTR		0x02
+#define MAX30100_REG_FIFO_OVR_CTR		0x03
+#define MAX30100_REG_FIFO_RD_PTR		0x04
+#define MAX30100_REG_FIFO_DATA			0x05
+#define MAX30100_REG_FIFO_DATA_ENTRY_COUNT	16
+#define MAX30100_REG_FIFO_DATA_ENTRY_LEN	4
+
+#define MAX30100_REG_MODE_CONFIG		0x06
+#define MAX30100_REG_MODE_CONFIG_MODE_SPO2_EN	BIT(0)
+#define MAX30100_REG_MODE_CONFIG_MODE_HR_EN	BIT(1)
+#define MAX30100_REG_MODE_CONFIG_MODE_MASK	0x03
+#define MAX30100_REG_MODE_CONFIG_TEMP_EN	BIT(3)
+#define MAX30100_REG_MODE_CONFIG_PWR		BIT(7)
+
+#define MAX30100_REG_SPO2_CONFIG		0x07
+#define MAX30100_REG_SPO2_CONFIG_100HZ		BIT(2)
+#define MAX30100_REG_SPO2_CONFIG_HI_RES_EN	BIT(6)
+#define MAX30100_REG_SPO2_CONFIG_1600US		0x3
+
+#define MAX30100_REG_LED_CONFIG			0x09
+#define MAX30100_REG_LED_CONFIG_RED_LED_SHIFT	4
+
+#define MAX30100_REG_LED_CONFIG_24MA		0x07
+#define MAX30100_REG_LED_CONFIG_50MA		0x0f
+
+#define MAX30100_REG_TEMP_INTEGER		0x16
+#define MAX30100_REG_TEMP_FRACTION		0x17
+
+struct max30100_data {
+	struct i2c_client *client;
+	struct iio_dev *indio_dev;
+	struct mutex lock;
+	struct regmap *regmap;
+
+	__be16 buffer[2]; /* 2 16-bit channels */
+};
+
+static bool max30100_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX30100_REG_INT_STATUS:
+	case MAX30100_REG_MODE_CONFIG:
+	case MAX30100_REG_FIFO_WR_PTR:
+	case MAX30100_REG_FIFO_OVR_CTR:
+	case MAX30100_REG_FIFO_RD_PTR:
+	case MAX30100_REG_FIFO_DATA:
+	case MAX30100_REG_TEMP_INTEGER:
+	case MAX30100_REG_TEMP_FRACTION:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config max30100_regmap_config = {
+	.name = MAX30100_REGMAP_NAME,
+
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = MAX30100_REG_TEMP_FRACTION,
+	.cache_type = REGCACHE_FLAT,
+
+	.volatile_reg = max30100_is_volatile_reg,
+};
+
+static const unsigned long max30100_scan_masks[] = {0x3, 0};
+
+static const struct iio_chan_spec max30100_channels[] = {
+	{
+		.type = IIO_INTENSITY,
+		.channel2 = IIO_MOD_LIGHT_IR,
+		.modified = 1,
+
+		.scan_index = 0,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
+	},
+	{
+		.type = IIO_INTENSITY,
+		.channel2 = IIO_MOD_LIGHT_RED,
+		.modified = 1,
+
+		.scan_index = 1,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
+	},
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+		.scan_index = -1,
+	},
+};
+
+static int max30100_set_powermode(struct max30100_data *data, bool state)
+{
+	return regmap_update_bits(data->regmap, MAX30100_REG_MODE_CONFIG,
+				  MAX30100_REG_MODE_CONFIG_PWR,
+				  state ? 0 : MAX30100_REG_MODE_CONFIG_PWR);
+}
+
+static int max30100_clear_fifo(struct max30100_data *data)
+{
+	int ret;
+
+	ret = regmap_write(data->regmap, MAX30100_REG_FIFO_WR_PTR, 0);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(data->regmap, MAX30100_REG_FIFO_OVR_CTR, 0);
+	if (ret)
+		return ret;
+
+	return regmap_write(data->regmap, MAX30100_REG_FIFO_RD_PTR, 0);
+}
+
+static int max30100_buffer_postenable(struct iio_dev *indio_dev)
+{
+	struct max30100_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = max30100_set_powermode(data, true);
+	if (ret)
+		return ret;
+
+	return max30100_clear_fifo(data);
+}
+
+static int max30100_buffer_predisable(struct iio_dev *indio_dev)
+{
+	struct max30100_data *data = iio_priv(indio_dev);
+
+	return max30100_set_powermode(data, false);
+}
+
+static const struct iio_buffer_setup_ops max30100_buffer_setup_ops = {
+	.postenable = max30100_buffer_postenable,
+	.predisable = max30100_buffer_predisable,
+};
+
+static inline int max30100_fifo_count(struct max30100_data *data)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(data->regmap, MAX30100_REG_INT_STATUS, &val);
+	if (ret)
+		return ret;
+
+	/* FIFO is almost full */
+	if (val & MAX30100_REG_INT_STATUS_FIFO_RDY)
+		return MAX30100_REG_FIFO_DATA_ENTRY_COUNT - 1;
+
+	return 0;
+}
+
+static int max30100_read_measurement(struct max30100_data *data)
+{
+	int ret;
+
+	ret = i2c_smbus_read_i2c_block_data(data->client,
+					    MAX30100_REG_FIFO_DATA,
+					    MAX30100_REG_FIFO_DATA_ENTRY_LEN,
+					    (u8 *) &data->buffer);
+
+	return (ret == MAX30100_REG_FIFO_DATA_ENTRY_LEN) ? 0 : ret;
+}
+
+static irqreturn_t max30100_interrupt_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct max30100_data *data = iio_priv(indio_dev);
+	int ret, cnt = 0;
+
+	mutex_lock(&data->lock);
+
+	while (cnt-- || (cnt = max30100_fifo_count(data) > 0)) {
+		ret = max30100_read_measurement(data);
+		if (ret)
+			break;
+
+		iio_push_to_buffers(data->indio_dev, data->buffer);
+	}
+
+	mutex_unlock(&data->lock);
+
+	return IRQ_HANDLED;
+}
+
+static int max30100_chip_init(struct max30100_data *data)
+{
+	int ret;
+
+	/* RED IR LED = 24mA, IR LED = 50mA */
+	ret = regmap_write(data->regmap, MAX30100_REG_LED_CONFIG,
+				(MAX30100_REG_LED_CONFIG_24MA <<
+				 MAX30100_REG_LED_CONFIG_RED_LED_SHIFT) |
+				 MAX30100_REG_LED_CONFIG_50MA);
+	if (ret)
+		return ret;
+
+	/* enable hi-res SPO2 readings at 100Hz */
+	ret = regmap_write(data->regmap, MAX30100_REG_SPO2_CONFIG,
+				 MAX30100_REG_SPO2_CONFIG_HI_RES_EN |
+				 MAX30100_REG_SPO2_CONFIG_100HZ);
+	if (ret)
+		return ret;
+
+	/* enable SPO2 mode */
+	ret = regmap_update_bits(data->regmap, MAX30100_REG_MODE_CONFIG,
+				 MAX30100_REG_MODE_CONFIG_MODE_MASK,
+				 MAX30100_REG_MODE_CONFIG_MODE_HR_EN |
+				 MAX30100_REG_MODE_CONFIG_MODE_SPO2_EN);
+	if (ret)
+		return ret;
+
+	/* enable FIFO interrupt */
+	return regmap_update_bits(data->regmap, MAX30100_REG_INT_ENABLE,
+				 MAX30100_REG_INT_ENABLE_MASK,
+				 MAX30100_REG_INT_ENABLE_FIFO_EN
+				 << MAX30100_REG_INT_ENABLE_MASK_SHIFT);
+}
+
+static int max30100_read_temp(struct max30100_data *data, int *val)
+{
+	int ret;
+	unsigned int reg;
+
+	ret = regmap_read(data->regmap, MAX30100_REG_TEMP_INTEGER, &reg);
+	if (ret < 0)
+		return ret;
+	*val = reg << 4;
+
+	ret = regmap_read(data->regmap, MAX30100_REG_TEMP_FRACTION, &reg);
+	if (ret < 0)
+		return ret;
+
+	*val |= reg & 0xf;
+	*val = sign_extend32(*val, 11);
+
+	return 0;
+}
+
+static int max30100_get_temp(struct max30100_data *data, int *val)
+{
+	int ret;
+
+	/* start acquisition */
+	ret = regmap_update_bits(data->regmap, MAX30100_REG_MODE_CONFIG,
+				 MAX30100_REG_MODE_CONFIG_TEMP_EN,
+				 MAX30100_REG_MODE_CONFIG_TEMP_EN);
+	if (ret)
+		return ret;
+
+	usleep_range(35000, 50000);
+
+	return max30100_read_temp(data, val);
+}
+
+static int max30100_read_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int *val, int *val2, long mask)
+{
+	struct max30100_data *data = iio_priv(indio_dev);
+	int ret = -EINVAL;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		/*
+		 * Temperature reading can only be acquired while engine
+		 * is running
+		 */
+		mutex_lock(&indio_dev->mlock);
+
+		if (!iio_buffer_enabled(indio_dev))
+			ret = -EAGAIN;
+		else {
+			ret = max30100_get_temp(data, val);
+			if (!ret)
+				ret = IIO_VAL_INT;
+
+		}
+
+		mutex_unlock(&indio_dev->mlock);
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 1;  /* 0.0625 */
+		*val2 = 16;
+		ret = IIO_VAL_FRACTIONAL;
+		break;
+	}
+
+	return ret;
+}
+
+static const struct iio_info max30100_info = {
+	.driver_module = THIS_MODULE,
+	.read_raw = max30100_read_raw,
+};
+
+static int max30100_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct max30100_data *data;
+	struct iio_buffer *buffer;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	buffer = devm_iio_kfifo_allocate(&client->dev);
+	if (!buffer)
+		return -ENOMEM;
+
+	iio_device_attach_buffer(indio_dev, buffer);
+
+	indio_dev->name = MAX30100_DRV_NAME;
+	indio_dev->channels = max30100_channels;
+	indio_dev->info = &max30100_info;
+	indio_dev->num_channels = ARRAY_SIZE(max30100_channels);
+	indio_dev->available_scan_masks = max30100_scan_masks;
+	indio_dev->modes = (INDIO_BUFFER_SOFTWARE | INDIO_DIRECT_MODE);
+	indio_dev->setup_ops = &max30100_buffer_setup_ops;
+
+	data = iio_priv(indio_dev);
+	data->indio_dev = indio_dev;
+	data->client = client;
+
+	mutex_init(&data->lock);
+	i2c_set_clientdata(client, indio_dev);
+
+	data->regmap = devm_regmap_init_i2c(client, &max30100_regmap_config);
+	if (IS_ERR(data->regmap)) {
+		dev_err(&client->dev, "regmap initialization failed.\n");
+		return PTR_ERR(data->regmap);
+	}
+	max30100_set_powermode(data, false);
+
+	ret = max30100_chip_init(data);
+	if (ret)
+		return ret;
+
+	if (client->irq <= 0) {
+		dev_err(&client->dev, "no valid irq defined\n");
+		return -EINVAL;
+	}
+	ret = devm_request_threaded_irq(&client->dev, client->irq,
+					NULL, max30100_interrupt_handler,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					"max30100_irq", indio_dev);
+	if (ret) {
+		dev_err(&client->dev, "request irq (%d) failed\n", client->irq);
+		return ret;
+	}
+
+	return iio_device_register(indio_dev);
+}
+
+static int max30100_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct max30100_data *data = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	max30100_set_powermode(data, false);
+
+	return 0;
+}
+
+static const struct i2c_device_id max30100_id[] = {
+	{ "max30100", 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, max30100_id);
+
+static const struct of_device_id max30100_dt_ids[] = {
+	{ .compatible = "maxim,max30100" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, max30100_dt_ids);
+
+static struct i2c_driver max30100_driver = {
+	.driver = {
+		.name	= MAX30100_DRV_NAME,
+		.of_match_table	= of_match_ptr(max30100_dt_ids),
+	},
+	.probe		= max30100_probe,
+	.remove		= max30100_remove,
+	.id_table	= max30100_id,
+};
+module_i2c_driver(max30100_driver);
+
+MODULE_AUTHOR("Matt Ranostay <mranostay@gmail.com>");
+MODULE_DESCRIPTION("MAX30100 heart rate and pulse oximeter sensor");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
index 0618f831ecd4..fb7c0dbed51c 100644
--- a/drivers/iio/imu/adis16400_core.c
+++ b/drivers/iio/imu/adis16400_core.c
@@ -288,7 +288,11 @@ static int adis16400_initial_setup(struct iio_dev *indio_dev)
 		if (ret)
 			goto err_ret;
 
-		sscanf(indio_dev->name, "adis%u\n", &device_id);
+		ret = sscanf(indio_dev->name, "adis%u\n", &device_id);
+		if (ret != 1) {
+			ret = -EINVAL;
+			goto err_ret;
+		}
 
 		if (prod_id != device_id)
 			dev_warn(&indio_dev->dev, "Device ID(%u) and product ID(%u) do not match.",
diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index 2485b88ee1b6..8cf84d3488b2 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -765,7 +765,9 @@ static int adis16480_initial_setup(struct iio_dev *indio_dev)
 	if (ret)
 		return ret;
 
-	sscanf(indio_dev->name, "adis%u\n", &device_id);
+	ret = sscanf(indio_dev->name, "adis%u\n", &device_id);
+	if (ret != 1)
+		return -EINVAL;
 
 	if (prod_id != device_id)
 		dev_warn(&indio_dev->dev, "Device ID(%u) and product ID(%u) do not match.",
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index dbf5e9936635..e5306b4e020e 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -1390,6 +1390,14 @@ static int kmx61_probe(struct i2c_client *client,
 		}
 	}
 
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret < 0)
+		goto err_buffer_cleanup_mag;
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev, KMX61_SLEEP_DELAY_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
 	ret = iio_device_register(data->acc_indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to register acc iio device\n");
@@ -1402,18 +1410,8 @@ static int kmx61_probe(struct i2c_client *client,
 		goto err_iio_unregister_acc;
 	}
 
-	ret = pm_runtime_set_active(&client->dev);
-	if (ret < 0)
-		goto err_iio_unregister_mag;
-
-	pm_runtime_enable(&client->dev);
-	pm_runtime_set_autosuspend_delay(&client->dev, KMX61_SLEEP_DELAY_MS);
-	pm_runtime_use_autosuspend(&client->dev);
-
 	return 0;
 
-err_iio_unregister_mag:
-	iio_device_unregister(data->mag_indio_dev);
 err_iio_unregister_acc:
 	iio_device_unregister(data->acc_indio_dev);
 err_buffer_cleanup_mag:
@@ -1437,13 +1435,13 @@ static int kmx61_remove(struct i2c_client *client)
 {
 	struct kmx61_data *data = i2c_get_clientdata(client);
 
+	iio_device_unregister(data->acc_indio_dev);
+	iio_device_unregister(data->mag_indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(data->acc_indio_dev);
-	iio_device_unregister(data->mag_indio_dev);
-
 	if (client->irq > 0) {
 		iio_triggered_buffer_cleanup(data->acc_indio_dev);
 		iio_triggered_buffer_cleanup(data->mag_indio_dev);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 0f6f63b20263..139ae916225f 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -193,7 +193,8 @@ void iio_buffer_init(struct iio_buffer *buffer)
 	INIT_LIST_HEAD(&buffer->buffer_list);
 	init_waitqueue_head(&buffer->pollq);
 	kref_init(&buffer->ref);
-	buffer->watermark = 1;
+	if (!buffer->watermark)
+		buffer->watermark = 1;
 }
 EXPORT_SYMBOL(iio_buffer_init);
 
@@ -567,6 +568,22 @@ static void iio_buffer_deactivate_all(struct iio_dev *indio_dev)
 		iio_buffer_deactivate(buffer);
 }
 
+static int iio_buffer_enable(struct iio_buffer *buffer,
+	struct iio_dev *indio_dev)
+{
+	if (!buffer->access->enable)
+		return 0;
+	return buffer->access->enable(buffer, indio_dev);
+}
+
+static int iio_buffer_disable(struct iio_buffer *buffer,
+	struct iio_dev *indio_dev)
+{
+	if (!buffer->access->disable)
+		return 0;
+	return buffer->access->disable(buffer, indio_dev);
+}
+
 static void iio_buffer_update_bytes_per_datum(struct iio_dev *indio_dev,
 	struct iio_buffer *buffer)
 {
@@ -610,6 +627,7 @@ static void iio_free_scan_mask(struct iio_dev *indio_dev,
 
 struct iio_device_config {
 	unsigned int mode;
+	unsigned int watermark;
 	const unsigned long *scan_mask;
 	unsigned int scan_bytes;
 	bool scan_timestamp;
@@ -642,10 +660,14 @@ static int iio_verify_update(struct iio_dev *indio_dev,
 		if (buffer == remove_buffer)
 			continue;
 		modes &= buffer->access->modes;
+		config->watermark = min(config->watermark, buffer->watermark);
 	}
 
-	if (insert_buffer)
+	if (insert_buffer) {
 		modes &= insert_buffer->access->modes;
+		config->watermark = min(config->watermark,
+			insert_buffer->watermark);
+	}
 
 	/* Definitely possible for devices to support both of these. */
 	if ((modes & INDIO_BUFFER_TRIGGERED) && indio_dev->trig) {
@@ -713,6 +735,7 @@ static int iio_verify_update(struct iio_dev *indio_dev,
 static int iio_enable_buffers(struct iio_dev *indio_dev,
 	struct iio_device_config *config)
 {
+	struct iio_buffer *buffer;
 	int ret;
 
 	indio_dev->active_scan_mask = config->scan_mask;
@@ -743,6 +766,16 @@ static int iio_enable_buffers(struct iio_dev *indio_dev,
 		}
 	}
 
+	if (indio_dev->info->hwfifo_set_watermark)
+		indio_dev->info->hwfifo_set_watermark(indio_dev,
+			config->watermark);
+
+	list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list) {
+		ret = iio_buffer_enable(buffer, indio_dev);
+		if (ret)
+			goto err_disable_buffers;
+	}
+
 	indio_dev->currentmode = config->mode;
 
 	if (indio_dev->setup_ops->postenable) {
@@ -750,12 +783,16 @@ static int iio_enable_buffers(struct iio_dev *indio_dev,
 		if (ret) {
 			dev_dbg(&indio_dev->dev,
 			       "Buffer not started: postenable failed (%d)\n", ret);
-			goto err_run_postdisable;
+			goto err_disable_buffers;
 		}
 	}
 
 	return 0;
 
+err_disable_buffers:
+	list_for_each_entry_continue_reverse(buffer, &indio_dev->buffer_list,
+					     buffer_list)
+		iio_buffer_disable(buffer, indio_dev);
 err_run_postdisable:
 	indio_dev->currentmode = INDIO_DIRECT_MODE;
 	if (indio_dev->setup_ops->postdisable)
@@ -768,6 +805,7 @@ err_undo_config:
 
 static int iio_disable_buffers(struct iio_dev *indio_dev)
 {
+	struct iio_buffer *buffer;
 	int ret = 0;
 	int ret2;
 
@@ -788,6 +826,12 @@ static int iio_disable_buffers(struct iio_dev *indio_dev)
 			ret = ret2;
 	}
 
+	list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list) {
+		ret2 = iio_buffer_disable(buffer, indio_dev);
+		if (ret2 && !ret)
+			ret = ret2;
+	}
+
 	indio_dev->currentmode = INDIO_DIRECT_MODE;
 
 	if (indio_dev->setup_ops->postdisable) {
@@ -974,9 +1018,6 @@ static ssize_t iio_buffer_store_watermark(struct device *dev,
 	}
 
 	buffer->watermark = val;
-
-	if (indio_dev->info->hwfifo_set_watermark)
-		indio_dev->info->hwfifo_set_watermark(indio_dev, val);
 out:
 	mutex_unlock(&indio_dev->mlock);
 
@@ -991,6 +1032,8 @@ static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,
 		   iio_buffer_show_enable, iio_buffer_store_enable);
 static DEVICE_ATTR(watermark, S_IRUGO | S_IWUSR,
 		   iio_buffer_show_watermark, iio_buffer_store_watermark);
+static struct device_attribute dev_attr_watermark_ro = __ATTR(watermark,
+	S_IRUGO, iio_buffer_show_watermark, NULL);
 
 static struct attribute *iio_buffer_attrs[] = {
 	&dev_attr_length.attr,
@@ -1033,6 +1076,9 @@ int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)
 	if (!buffer->access->set_length)
 		attr[0] = &dev_attr_length_ro.attr;
 
+	if (buffer->access->flags & INDIO_BUFFER_FLAG_FIXED_WATERMARK)
+		attr[2] = &dev_attr_watermark_ro.attr;
+
 	if (buffer->attrs)
 		memcpy(&attr[ARRAY_SIZE(iio_buffer_attrs)], buffer->attrs,
 		       sizeof(struct attribute *) * attrcount);
diff --git a/drivers/iio/industrialio-configfs.c b/drivers/iio/industrialio-configfs.c
new file mode 100644
index 000000000000..45ce2bc47180
--- /dev/null
+++ b/drivers/iio/industrialio-configfs.c
@@ -0,0 +1,51 @@
+/*
+ * Industrial I/O configfs bits
+ *
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/configfs.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kmod.h>
+#include <linux/slab.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/configfs.h>
+
+static struct config_item_type iio_root_group_type = {
+	.ct_owner       = THIS_MODULE,
+};
+
+struct configfs_subsystem iio_configfs_subsys = {
+	.su_group = {
+		.cg_item = {
+			.ci_namebuf = "iio",
+			.ci_type = &iio_root_group_type,
+		},
+	},
+	.su_mutex = __MUTEX_INITIALIZER(iio_configfs_subsys.su_mutex),
+};
+EXPORT_SYMBOL(iio_configfs_subsys);
+
+static int __init iio_configfs_init(void)
+{
+	config_group_init(&iio_configfs_subsys.su_group);
+
+	return configfs_register_subsystem(&iio_configfs_subsys);
+}
+module_init(iio_configfs_init);
+
+static void __exit iio_configfs_exit(void)
+{
+	configfs_unregister_subsystem(&iio_configfs_subsys);
+}
+module_exit(iio_configfs_exit);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("Industrial I/O configfs support");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 159ede61f793..fd01f3493fc7 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -470,6 +470,7 @@ ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals)
 		return 0;
 	}
 }
+EXPORT_SYMBOL_GPL(iio_format_value);
 
 static ssize_t iio_read_channel_info(struct device *dev,
 				     struct device_attribute *attr,
@@ -512,6 +513,12 @@ int iio_str_to_fixpoint(const char *str, int fract_mult,
 	int i = 0, f = 0;
 	bool integer_part = true, negative = false;
 
+	if (fract_mult == 0) {
+		*fract = 0;
+
+		return kstrtoint(str, 0, integer);
+	}
+
 	if (str[0] == '-') {
 		negative = true;
 		str++;
@@ -571,6 +578,9 @@ static ssize_t iio_write_channel_info(struct device *dev,
 	if (indio_dev->info->write_raw_get_fmt)
 		switch (indio_dev->info->write_raw_get_fmt(indio_dev,
 			this_attr->c, this_attr->address)) {
+		case IIO_VAL_INT:
+			fract_mult = 0;
+			break;
 		case IIO_VAL_INT_PLUS_MICRO:
 			fract_mult = 100000;
 			break;
diff --git a/drivers/iio/industrialio-sw-trigger.c b/drivers/iio/industrialio-sw-trigger.c
new file mode 100644
index 000000000000..311f9fe5aa34
--- /dev/null
+++ b/drivers/iio/industrialio-sw-trigger.c
@@ -0,0 +1,184 @@
+/*
+ * The Industrial I/O core, software trigger functions
+ *
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kmod.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+
+#include <linux/iio/sw_trigger.h>
+#include <linux/iio/configfs.h>
+#include <linux/configfs.h>
+
+static struct config_group *iio_triggers_group;
+static struct config_item_type iio_trigger_type_group_type;
+
+static struct config_item_type iio_triggers_group_type = {
+	.ct_owner = THIS_MODULE,
+};
+
+static LIST_HEAD(iio_trigger_types_list);
+static DEFINE_MUTEX(iio_trigger_types_lock);
+
+static
+struct iio_sw_trigger_type *__iio_find_sw_trigger_type(const char *name,
+						       unsigned len)
+{
+	struct iio_sw_trigger_type *t = NULL, *iter;
+
+	list_for_each_entry(iter, &iio_trigger_types_list, list)
+		if (!strcmp(iter->name, name)) {
+			t = iter;
+			break;
+		}
+
+	return t;
+}
+
+int iio_register_sw_trigger_type(struct iio_sw_trigger_type *t)
+{
+	struct iio_sw_trigger_type *iter;
+	int ret = 0;
+
+	mutex_lock(&iio_trigger_types_lock);
+	iter = __iio_find_sw_trigger_type(t->name, strlen(t->name));
+	if (iter)
+		ret = -EBUSY;
+	else
+		list_add_tail(&t->list, &iio_trigger_types_list);
+	mutex_unlock(&iio_trigger_types_lock);
+
+	if (ret)
+		return ret;
+
+	t->group = configfs_register_default_group(iio_triggers_group, t->name,
+						&iio_trigger_type_group_type);
+	if (IS_ERR(t->group))
+		ret = PTR_ERR(t->group);
+
+	return ret;
+}
+EXPORT_SYMBOL(iio_register_sw_trigger_type);
+
+void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *t)
+{
+	struct iio_sw_trigger_type *iter;
+
+	mutex_lock(&iio_trigger_types_lock);
+	iter = __iio_find_sw_trigger_type(t->name, strlen(t->name));
+	if (iter)
+		list_del(&t->list);
+	mutex_unlock(&iio_trigger_types_lock);
+
+	configfs_unregister_default_group(t->group);
+}
+EXPORT_SYMBOL(iio_unregister_sw_trigger_type);
+
+static
+struct iio_sw_trigger_type *iio_get_sw_trigger_type(const char *name)
+{
+	struct iio_sw_trigger_type *t;
+
+	mutex_lock(&iio_trigger_types_lock);
+	t = __iio_find_sw_trigger_type(name, strlen(name));
+	if (t && !try_module_get(t->owner))
+		t = NULL;
+	mutex_unlock(&iio_trigger_types_lock);
+
+	return t;
+}
+
+struct iio_sw_trigger *iio_sw_trigger_create(const char *type, const char *name)
+{
+	struct iio_sw_trigger *t;
+	struct iio_sw_trigger_type *tt;
+
+	tt = iio_get_sw_trigger_type(type);
+	if (!tt) {
+		pr_err("Invalid trigger type: %s\n", type);
+		return ERR_PTR(-EINVAL);
+	}
+	t = tt->ops->probe(name);
+	if (IS_ERR(t))
+		goto out_module_put;
+
+	t->trigger_type = tt;
+
+	return t;
+out_module_put:
+	module_put(tt->owner);
+	return t;
+}
+EXPORT_SYMBOL(iio_sw_trigger_create);
+
+void iio_sw_trigger_destroy(struct iio_sw_trigger *t)
+{
+	struct iio_sw_trigger_type *tt = t->trigger_type;
+
+	tt->ops->remove(t);
+	module_put(tt->owner);
+}
+EXPORT_SYMBOL(iio_sw_trigger_destroy);
+
+static struct config_group *trigger_make_group(struct config_group *group,
+					       const char *name)
+{
+	struct iio_sw_trigger *t;
+
+	t = iio_sw_trigger_create(group->cg_item.ci_name, name);
+	if (IS_ERR(t))
+		return ERR_CAST(t);
+
+	config_item_set_name(&t->group.cg_item, "%s", name);
+
+	return &t->group;
+}
+
+static void trigger_drop_group(struct config_group *group,
+			       struct config_item *item)
+{
+	struct iio_sw_trigger *t = to_iio_sw_trigger(item);
+
+	iio_sw_trigger_destroy(t);
+	config_item_put(item);
+}
+
+static struct configfs_group_operations trigger_ops = {
+	.make_group	= &trigger_make_group,
+	.drop_item	= &trigger_drop_group,
+};
+
+static struct config_item_type iio_trigger_type_group_type = {
+	.ct_group_ops = &trigger_ops,
+	.ct_owner       = THIS_MODULE,
+};
+
+static int __init iio_sw_trigger_init(void)
+{
+	iio_triggers_group =
+		configfs_register_default_group(&iio_configfs_subsys.su_group,
+						"triggers",
+						&iio_triggers_group_type);
+	if (IS_ERR(iio_triggers_group))
+		return PTR_ERR(iio_triggers_group);
+	return 0;
+}
+module_init(iio_sw_trigger_init);
+
+static void __exit iio_sw_trigger_exit(void)
+{
+	configfs_unregister_default_group(iio_triggers_group);
+}
+module_exit(iio_sw_trigger_exit);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("Industrial I/O software triggers support");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index c8bad3cf891d..80fbbfd76faf 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -61,12 +61,10 @@ EXPORT_SYMBOL_GPL(iio_map_array_register);
 int iio_map_array_unregister(struct iio_dev *indio_dev)
 {
 	int ret = -ENODEV;
-	struct iio_map_internal *mapi;
-	struct list_head *pos, *tmp;
+	struct iio_map_internal *mapi, *next;
 
 	mutex_lock(&iio_map_list_lock);
-	list_for_each_safe(pos, tmp, &iio_map_list) {
-		mapi = list_entry(pos, struct iio_map_internal, l);
+	list_for_each_entry_safe(mapi, next, &iio_map_list, l) {
 		if (indio_dev == mapi->indio_dev) {
 			list_del(&mapi->l);
 			kfree(mapi);
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index 076bc46fad03..e56937c40a18 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -743,8 +743,10 @@ static int lm3533_als_set_resistor(struct lm3533_als *als, u8 val)
 {
 	int ret;
 
-	if (val < LM3533_ALS_RESISTOR_MIN || val > LM3533_ALS_RESISTOR_MAX)
+	if (val < LM3533_ALS_RESISTOR_MIN || val > LM3533_ALS_RESISTOR_MAX) {
+		dev_err(&als->pdev->dev, "invalid resistor value\n");
 		return -EINVAL;
+	};
 
 	ret = lm3533_write(als->lm3533, LM3533_REG_ALS_RESISTOR_SELECT, val);
 	if (ret) {
diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c
index 45f7bde02bbf..76a9e12b46bc 100644
--- a/drivers/iio/light/pa12203001.c
+++ b/drivers/iio/light/pa12203001.c
@@ -381,17 +381,23 @@ static int pa12203001_probe(struct i2c_client *client,
 		return ret;
 
 	ret = pm_runtime_set_active(&client->dev);
-	if (ret < 0) {
-		pa12203001_power_chip(indio_dev, PA12203001_CHIP_DISABLE);
-		return ret;
-	}
+	if (ret < 0)
+		goto out_err;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev,
 					 PA12203001_SLEEP_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
-	return iio_device_register(indio_dev);
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	pa12203001_power_chip(indio_dev, PA12203001_CHIP_DISABLE);
+	return ret;
 }
 
 static int pa12203001_remove(struct i2c_client *client)
diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c
index 4b75bb0998b3..7de0f397194b 100644
--- a/drivers/iio/light/rpr0521.c
+++ b/drivers/iio/light/rpr0521.c
@@ -507,34 +507,28 @@ static int rpr0521_probe(struct i2c_client *client,
 		dev_err(&client->dev, "rpr0521 chip init failed\n");
 		return ret;
 	}
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		return ret;
 
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret < 0)
-		goto err_iio_unregister;
+		return ret;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev, RPR0521_SLEEP_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
-	return 0;
-
-err_iio_unregister:
-	iio_device_unregister(indio_dev);
-	return ret;
+	return iio_device_register(indio_dev);
 }
 
 static int rpr0521_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(indio_dev);
 	rpr0521_poweroff(iio_priv(indio_dev));
 
 	return 0;
diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c
index 49dab3cb3e23..45bc2f742f46 100644
--- a/drivers/iio/light/us5182d.c
+++ b/drivers/iio/light/us5182d.c
@@ -20,14 +20,21 @@
 #include <linux/acpi.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
+#include <linux/iio/events.h>
 #include <linux/iio/iio.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/iio/sysfs.h>
 #include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 
 #define US5182D_REG_CFG0				0x00
 #define US5182D_CFG0_ONESHOT_EN				BIT(6)
 #define US5182D_CFG0_SHUTDOWN_EN			BIT(7)
 #define US5182D_CFG0_WORD_ENABLE			BIT(0)
+#define US5182D_CFG0_PROX				BIT(3)
+#define US5182D_CFG0_PX_IRQ				BIT(2)
 
 #define US5182D_REG_CFG1				0x01
 #define US5182D_CFG1_ALS_RES16				BIT(4)
@@ -39,6 +46,7 @@
 
 #define US5182D_REG_CFG3				0x03
 #define US5182D_CFG3_LED_CURRENT100			(BIT(4) | BIT(5))
+#define US5182D_CFG3_INT_SOURCE_PX			BIT(3)
 
 #define US5182D_REG_CFG4				0x10
 
@@ -53,6 +61,13 @@
 #define US5182D_REG_AUTO_LDARK_GAIN		0x29
 #define US5182D_REG_AUTO_HDARK_GAIN		0x2a
 
+/* Thresholds for events: px low (0x08-l, 0x09-h), px high (0x0a-l 0x0b-h) */
+#define US5182D_REG_PXL_TH			0x08
+#define US5182D_REG_PXH_TH			0x0a
+
+#define US5182D_REG_PXL_TH_DEFAULT		1000
+#define US5182D_REG_PXH_TH_DEFAULT		30000
+
 #define US5182D_OPMODE_ALS			0x01
 #define US5182D_OPMODE_PX			0x02
 #define US5182D_OPMODE_SHIFT			4
@@ -81,6 +96,9 @@
 #define US5182D_READ_BYTE			1
 #define US5182D_READ_WORD			2
 #define US5182D_OPSTORE_SLEEP_TIME		20 /* ms */
+#define US5182D_SLEEP_MS			3000 /* ms */
+#define US5182D_PXH_TH_DISABLE			0xffff
+#define US5182D_PXL_TH_DISABLE			0x0000
 
 /* Available ranges: [12354, 7065, 3998, 2202, 1285, 498, 256, 138] lux */
 static const int us5182d_scales[] = {188500, 107800, 61000, 33600, 19600, 7600,
@@ -99,6 +117,11 @@ enum mode {
 	US5182D_PX_ONLY
 };
 
+enum pmode {
+	US5182D_CONTINUOUS,
+	US5182D_ONESHOT
+};
+
 struct us5182d_data {
 	struct i2c_client *client;
 	struct mutex lock;
@@ -111,7 +134,19 @@ struct us5182d_data {
 	u8 upper_dark_gain;
 	u16 *us5182d_dark_ths;
 
+	u16 px_low_th;
+	u16 px_high_th;
+
+	int rising_en;
+	int falling_en;
+
 	u8 opmode;
+	u8 power_mode;
+
+	bool als_enabled;
+	bool px_enabled;
+
+	bool default_continuous;
 };
 
 static IIO_CONST_ATTR(in_illuminance_scale_available,
@@ -130,16 +165,30 @@ static const struct {
 	u8 reg;
 	u8 val;
 } us5182d_regvals[] = {
-	{US5182D_REG_CFG0, (US5182D_CFG0_SHUTDOWN_EN |
-			    US5182D_CFG0_WORD_ENABLE)},
+	{US5182D_REG_CFG0, US5182D_CFG0_WORD_ENABLE},
 	{US5182D_REG_CFG1, US5182D_CFG1_ALS_RES16},
 	{US5182D_REG_CFG2, (US5182D_CFG2_PX_RES16 |
 			    US5182D_CFG2_PXGAIN_DEFAULT)},
-	{US5182D_REG_CFG3, US5182D_CFG3_LED_CURRENT100},
-	{US5182D_REG_MODE_STORE, US5182D_STORE_MODE},
+	{US5182D_REG_CFG3, US5182D_CFG3_LED_CURRENT100 |
+			   US5182D_CFG3_INT_SOURCE_PX},
 	{US5182D_REG_CFG4, 0x00},
 };
 
+static const struct iio_event_spec us5182d_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				BIT(IIO_EV_INFO_ENABLE),
+	},
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 static const struct iio_chan_spec us5182d_channels[] = {
 	{
 		.type = IIO_LIGHT,
@@ -149,40 +198,39 @@ static const struct iio_chan_spec us5182d_channels[] = {
 	{
 		.type = IIO_PROXIMITY,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.event_spec = us5182d_events,
+		.num_event_specs = ARRAY_SIZE(us5182d_events),
 	}
 };
 
-static int us5182d_get_als(struct us5182d_data *data)
+static int us5182d_oneshot_en(struct us5182d_data *data)
 {
 	int ret;
-	unsigned long result;
 
-	ret = i2c_smbus_read_word_data(data->client,
-				       US5182D_REG_ADL);
+	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG0);
 	if (ret < 0)
 		return ret;
 
-	result = ret * data->ga / US5182D_GA_RESOLUTION;
-	if (result > 0xffff)
-		result = 0xffff;
+	/*
+	 * In oneshot mode the chip will power itself down after taking the
+	 * required measurement.
+	 */
+	ret = ret | US5182D_CFG0_ONESHOT_EN;
 
-	return result;
+	return i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG0, ret);
 }
 
 static int us5182d_set_opmode(struct us5182d_data *data, u8 mode)
 {
 	int ret;
 
+	if (mode == data->opmode)
+		return 0;
+
 	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG0);
 	if (ret < 0)
 		return ret;
 
-	/*
-	 * In oneshot mode the chip will power itself down after taking the
-	 * required measurement.
-	 */
-	ret = ret | US5182D_CFG0_ONESHOT_EN;
-
 	/* update mode */
 	ret = ret & ~US5182D_OPMODE_MASK;
 	ret = ret | (mode << US5182D_OPMODE_SHIFT);
@@ -196,9 +244,6 @@ static int us5182d_set_opmode(struct us5182d_data *data, u8 mode)
 	if (ret < 0)
 		return ret;
 
-	if (mode == data->opmode)
-		return 0;
-
 	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_MODE_STORE,
 					US5182D_STORE_MODE);
 	if (ret < 0)
@@ -210,6 +255,177 @@ static int us5182d_set_opmode(struct us5182d_data *data, u8 mode)
 	return 0;
 }
 
+static int us5182d_als_enable(struct us5182d_data *data)
+{
+	int ret;
+	u8 mode;
+
+	if (data->power_mode == US5182D_ONESHOT) {
+		ret = us5182d_set_opmode(data, US5182D_ALS_ONLY);
+		if (ret < 0)
+			return ret;
+		data->px_enabled = false;
+	}
+
+	if (data->als_enabled)
+		return 0;
+
+	mode = data->px_enabled ? US5182D_ALS_PX : US5182D_ALS_ONLY;
+
+	ret = us5182d_set_opmode(data, mode);
+	if (ret < 0)
+		return ret;
+
+	data->als_enabled = true;
+
+	return 0;
+}
+
+static int us5182d_px_enable(struct us5182d_data *data)
+{
+	int ret;
+	u8 mode;
+
+	if (data->power_mode == US5182D_ONESHOT) {
+		ret = us5182d_set_opmode(data, US5182D_PX_ONLY);
+		if (ret < 0)
+			return ret;
+		data->als_enabled = false;
+	}
+
+	if (data->px_enabled)
+		return 0;
+
+	mode = data->als_enabled ? US5182D_ALS_PX : US5182D_PX_ONLY;
+
+	ret = us5182d_set_opmode(data, mode);
+	if (ret < 0)
+		return ret;
+
+	data->px_enabled = true;
+
+	return 0;
+}
+
+static int us5182d_get_als(struct us5182d_data *data)
+{
+	int ret;
+	unsigned long result;
+
+	ret = us5182d_als_enable(data);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_read_word_data(data->client,
+				       US5182D_REG_ADL);
+	if (ret < 0)
+		return ret;
+
+	result = ret * data->ga / US5182D_GA_RESOLUTION;
+	if (result > 0xffff)
+		result = 0xffff;
+
+	return result;
+}
+
+static int us5182d_get_px(struct us5182d_data *data)
+{
+	int ret;
+
+	ret = us5182d_px_enable(data);
+	if (ret < 0)
+		return ret;
+
+	return i2c_smbus_read_word_data(data->client,
+					US5182D_REG_PDL);
+}
+
+static int us5182d_shutdown_en(struct us5182d_data *data, u8 state)
+{
+	int ret;
+
+	if (data->power_mode == US5182D_ONESHOT)
+		return 0;
+
+	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG0);
+	if (ret < 0)
+		return ret;
+
+	ret = ret & ~US5182D_CFG0_SHUTDOWN_EN;
+	ret = ret | state;
+
+	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG0, ret);
+	if (ret < 0)
+		return ret;
+
+	if (state & US5182D_CFG0_SHUTDOWN_EN) {
+		data->als_enabled = false;
+		data->px_enabled = false;
+	}
+
+	return ret;
+}
+
+
+static int us5182d_set_power_state(struct us5182d_data *data, bool on)
+{
+	int ret;
+
+	if (data->power_mode == US5182D_ONESHOT)
+		return 0;
+
+	if (on) {
+		ret = pm_runtime_get_sync(&data->client->dev);
+		if (ret < 0)
+			pm_runtime_put_noidle(&data->client->dev);
+	} else {
+		pm_runtime_mark_last_busy(&data->client->dev);
+		ret = pm_runtime_put_autosuspend(&data->client->dev);
+	}
+
+	return ret;
+}
+
+static int us5182d_read_value(struct us5182d_data *data,
+			      struct iio_chan_spec const *chan)
+{
+	int ret, value;
+
+	mutex_lock(&data->lock);
+
+	if (data->power_mode == US5182D_ONESHOT) {
+		ret = us5182d_oneshot_en(data);
+		if (ret < 0)
+			goto out_err;
+	}
+
+	ret = us5182d_set_power_state(data, true);
+	if (ret < 0)
+		goto out_err;
+
+	if (chan->type == IIO_LIGHT)
+		ret = us5182d_get_als(data);
+	else
+		ret = us5182d_get_px(data);
+	if (ret < 0)
+		goto out_poweroff;
+
+	value = ret;
+
+	ret = us5182d_set_power_state(data, false);
+	if (ret < 0)
+		goto out_err;
+
+	mutex_unlock(&data->lock);
+	return value;
+
+out_poweroff:
+	us5182d_set_power_state(data, false);
+out_err:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
 static int us5182d_read_raw(struct iio_dev *indio_dev,
 			    struct iio_chan_spec const *chan, int *val,
 			    int *val2, long mask)
@@ -219,53 +435,21 @@ static int us5182d_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		switch (chan->type) {
-		case IIO_LIGHT:
-			mutex_lock(&data->lock);
-			ret = us5182d_set_opmode(data, US5182D_OPMODE_ALS);
-			if (ret < 0)
-				goto out_err;
-
-			ret = us5182d_get_als(data);
-			if (ret < 0)
-				goto out_err;
-			mutex_unlock(&data->lock);
-			*val = ret;
-			return IIO_VAL_INT;
-		case IIO_PROXIMITY:
-			mutex_lock(&data->lock);
-			ret = us5182d_set_opmode(data, US5182D_OPMODE_PX);
-			if (ret < 0)
-				goto out_err;
-
-			ret = i2c_smbus_read_word_data(data->client,
-						       US5182D_REG_PDL);
-			if (ret < 0)
-				goto out_err;
-			mutex_unlock(&data->lock);
-			*val = ret;
-			return  IIO_VAL_INT;
-		default:
-			return -EINVAL;
-		}
-
+		ret = us5182d_read_value(data, chan);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
 		ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG1);
 		if (ret < 0)
 			return ret;
-
 		*val = 0;
 		*val2 = us5182d_scales[ret & US5182D_AGAIN_MASK];
-
 		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		return -EINVAL;
 	}
-
-	return -EINVAL;
-out_err:
-	mutex_unlock(&data->lock);
-	return ret;
 }
 
 /**
@@ -343,11 +527,201 @@ static int us5182d_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
+static int us5182d_setup_prox(struct iio_dev *indio_dev,
+			      enum iio_event_direction dir, u16 val)
+{
+	struct us5182d_data *data = iio_priv(indio_dev);
+
+	if (dir == IIO_EV_DIR_FALLING)
+		return i2c_smbus_write_word_data(data->client,
+						 US5182D_REG_PXL_TH, val);
+	else if (dir == IIO_EV_DIR_RISING)
+		return i2c_smbus_write_word_data(data->client,
+						 US5182D_REG_PXH_TH, val);
+
+	return 0;
+}
+
+static int us5182d_read_thresh(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
+{
+	struct us5182d_data *data = iio_priv(indio_dev);
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		mutex_lock(&data->lock);
+		*val = data->px_high_th;
+		mutex_unlock(&data->lock);
+		break;
+	case IIO_EV_DIR_FALLING:
+		mutex_lock(&data->lock);
+		*val = data->px_low_th;
+		mutex_unlock(&data->lock);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return IIO_VAL_INT;
+}
+
+static int us5182d_write_thresh(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int val,
+	int val2)
+{
+	struct us5182d_data *data = iio_priv(indio_dev);
+	int ret;
+
+	if (val < 0 || val > USHRT_MAX || val2 != 0)
+		return -EINVAL;
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		mutex_lock(&data->lock);
+		if (data->rising_en) {
+			ret = us5182d_setup_prox(indio_dev, dir, val);
+			if (ret < 0)
+				goto err;
+		}
+		data->px_high_th = val;
+		mutex_unlock(&data->lock);
+		break;
+	case IIO_EV_DIR_FALLING:
+		mutex_lock(&data->lock);
+		if (data->falling_en) {
+			ret = us5182d_setup_prox(indio_dev, dir, val);
+			if (ret < 0)
+				goto err;
+		}
+		data->px_low_th = val;
+		mutex_unlock(&data->lock);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+err:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
+static int us5182d_read_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
+{
+	struct us5182d_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		mutex_lock(&data->lock);
+		ret = data->rising_en;
+		mutex_unlock(&data->lock);
+		break;
+	case IIO_EV_DIR_FALLING:
+		mutex_lock(&data->lock);
+		ret = data->falling_en;
+		mutex_unlock(&data->lock);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int us5182d_write_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
+{
+	struct us5182d_data *data = iio_priv(indio_dev);
+	int ret;
+	u16 new_th;
+
+	mutex_lock(&data->lock);
+
+	switch (dir) {
+	case IIO_EV_DIR_RISING:
+		if (data->rising_en == state) {
+			mutex_unlock(&data->lock);
+			return 0;
+		}
+		new_th = US5182D_PXH_TH_DISABLE;
+		if (state) {
+			data->power_mode = US5182D_CONTINUOUS;
+			ret = us5182d_set_power_state(data, true);
+			if (ret < 0)
+				goto err;
+			ret = us5182d_px_enable(data);
+			if (ret < 0)
+				goto err_poweroff;
+			new_th = data->px_high_th;
+		}
+		ret = us5182d_setup_prox(indio_dev, dir, new_th);
+		if (ret < 0)
+			goto err_poweroff;
+		data->rising_en = state;
+		break;
+	case IIO_EV_DIR_FALLING:
+		if (data->falling_en == state) {
+			mutex_unlock(&data->lock);
+			return 0;
+		}
+		new_th =  US5182D_PXL_TH_DISABLE;
+		if (state) {
+			data->power_mode = US5182D_CONTINUOUS;
+			ret = us5182d_set_power_state(data, true);
+			if (ret < 0)
+				goto err;
+			ret = us5182d_px_enable(data);
+			if (ret < 0)
+				goto err_poweroff;
+			new_th = data->px_low_th;
+		}
+		ret = us5182d_setup_prox(indio_dev, dir, new_th);
+		if (ret < 0)
+			goto err_poweroff;
+		data->falling_en = state;
+		break;
+	default:
+		ret = -EINVAL;
+		goto err;
+	}
+
+	if (!state) {
+		ret = us5182d_set_power_state(data, false);
+		if (ret < 0)
+			goto err;
+	}
+
+	if (!data->falling_en && !data->rising_en && !data->default_continuous)
+		data->power_mode = US5182D_ONESHOT;
+
+	mutex_unlock(&data->lock);
+	return 0;
+
+err_poweroff:
+	if (state)
+		us5182d_set_power_state(data, false);
+err:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
 static const struct iio_info us5182d_info = {
 	.driver_module	= THIS_MODULE,
 	.read_raw = us5182d_read_raw,
 	.write_raw = us5182d_write_raw,
 	.attrs = &us5182d_attr_group,
+	.read_event_value = &us5182d_read_thresh,
+	.write_event_value = &us5182d_write_thresh,
+	.read_event_config = &us5182d_read_event_config,
+	.write_event_config = &us5182d_write_event_config,
 };
 
 static int us5182d_reset(struct iio_dev *indio_dev)
@@ -368,6 +742,10 @@ static int us5182d_init(struct iio_dev *indio_dev)
 		return ret;
 
 	data->opmode = 0;
+	data->power_mode = US5182D_CONTINUOUS;
+	data->px_low_th = US5182D_REG_PXL_TH_DEFAULT;
+	data->px_high_th = US5182D_REG_PXH_TH_DEFAULT;
+
 	for (i = 0; i < ARRAY_SIZE(us5182d_regvals); i++) {
 		ret = i2c_smbus_write_byte_data(data->client,
 						us5182d_regvals[i].reg,
@@ -376,7 +754,17 @@ static int us5182d_init(struct iio_dev *indio_dev)
 			return ret;
 	}
 
-	return 0;
+	data->als_enabled = true;
+	data->px_enabled = true;
+
+	if (!data->default_continuous) {
+		ret = us5182d_shutdown_en(data, US5182D_CFG0_SHUTDOWN_EN);
+		if (ret < 0)
+			return ret;
+		data->power_mode = US5182D_ONESHOT;
+	}
+
+	return ret;
 }
 
 static void us5182d_get_platform_data(struct iio_dev *indio_dev)
@@ -399,6 +787,8 @@ static void us5182d_get_platform_data(struct iio_dev *indio_dev)
 				    "upisemi,lower-dark-gain",
 				    &data->lower_dark_gain))
 		data->lower_dark_gain = US5182D_REG_AUTO_LDARK_GAIN_DEFAULT;
+	data->default_continuous = device_property_read_bool(&data->client->dev,
+							     "upisemi,continuous");
 }
 
 static int  us5182d_dark_gain_config(struct iio_dev *indio_dev)
@@ -426,6 +816,33 @@ static int  us5182d_dark_gain_config(struct iio_dev *indio_dev)
 					 US5182D_REG_DARK_AUTO_EN_DEFAULT);
 }
 
+static irqreturn_t us5182d_irq_thread_handler(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct us5182d_data *data = iio_priv(indio_dev);
+	enum iio_event_direction dir;
+	int ret;
+	u64 ev;
+
+	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG0);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "i2c transfer error in irq\n");
+		return IRQ_HANDLED;
+	}
+
+	dir = ret & US5182D_CFG0_PROX ? IIO_EV_DIR_RISING : IIO_EV_DIR_FALLING;
+	ev = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, IIO_EV_TYPE_THRESH, dir);
+
+	iio_push_event(indio_dev, ev, iio_get_time_ns());
+
+	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG0,
+					ret & ~US5182D_CFG0_PX_IRQ);
+	if (ret < 0)
+		dev_err(&data->client->dev, "i2c transfer error in irq\n");
+
+	return IRQ_HANDLED;
+}
+
 static int us5182d_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -457,6 +874,16 @@ static int us5182d_probe(struct i2c_client *client,
 		return (ret < 0) ? ret : -ENODEV;
 	}
 
+	if (client->irq > 0) {
+		ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+						us5182d_irq_thread_handler,
+						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						"us5182d-irq", indio_dev);
+		if (ret < 0)
+			return ret;
+	} else
+		dev_warn(&client->dev, "no valid irq found\n");
+
 	us5182d_get_platform_data(indio_dev);
 	ret = us5182d_init(indio_dev);
 	if (ret < 0)
@@ -464,18 +891,73 @@ static int us5182d_probe(struct i2c_client *client,
 
 	ret = us5182d_dark_gain_config(indio_dev);
 	if (ret < 0)
-		return ret;
+		goto out_err;
+
+	if (data->default_continuous) {
+		pm_runtime_set_active(&client->dev);
+		if (ret < 0)
+			goto out_err;
+	}
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev,
+					 US5182D_SLEEP_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	us5182d_shutdown_en(data, US5182D_CFG0_SHUTDOWN_EN);
+	return ret;
 
-	return iio_device_register(indio_dev);
 }
 
 static int us5182d_remove(struct i2c_client *client)
 {
+	struct us5182d_data *data = iio_priv(i2c_get_clientdata(client));
+
 	iio_device_unregister(i2c_get_clientdata(client));
-	return i2c_smbus_write_byte_data(client, US5182D_REG_CFG0,
-					 US5182D_CFG0_SHUTDOWN_EN);
+
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
+
+	return us5182d_shutdown_en(data, US5182D_CFG0_SHUTDOWN_EN);
+}
+
+#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM)
+static int us5182d_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct us5182d_data *data = iio_priv(indio_dev);
+
+	if (data->power_mode == US5182D_CONTINUOUS)
+		return us5182d_shutdown_en(data, US5182D_CFG0_SHUTDOWN_EN);
+
+	return 0;
 }
 
+static int us5182d_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct us5182d_data *data = iio_priv(indio_dev);
+
+	if (data->power_mode == US5182D_CONTINUOUS)
+		return us5182d_shutdown_en(data,
+					   ~US5182D_CFG0_SHUTDOWN_EN & 0xff);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops us5182d_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(us5182d_suspend, us5182d_resume)
+	SET_RUNTIME_PM_OPS(us5182d_suspend, us5182d_resume, NULL)
+};
+
 static const struct acpi_device_id us5182d_acpi_match[] = {
 	{ "USD5182", 0},
 	{}
@@ -493,6 +975,7 @@ MODULE_DEVICE_TABLE(i2c, us5182d_id);
 static struct i2c_driver us5182d_driver = {
 	.driver = {
 		.name = US5182D_DRV_NAME,
+		.pm = &us5182d_pm_ops,
 		.acpi_match_table = ACPI_PTR(us5182d_acpi_match),
 	},
 	.probe = us5182d_probe,
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 1615b23d7b2a..ffcb75ea64fb 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -928,27 +928,24 @@ static int bmc150_magn_probe(struct i2c_client *client,
 		goto err_free_irq;
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(&client->dev, "unable to register iio device\n");
-		goto err_buffer_cleanup;
-	}
-
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret)
-		goto err_iio_unregister;
+		goto err_buffer_cleanup;
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev,
 					 BMC150_MAGN_AUTO_SUSPEND_DELAY_MS);
 	pm_runtime_use_autosuspend(&client->dev);
 
-	dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to register iio device\n");
+		goto err_buffer_cleanup;
+	}
 
+	dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
 	return 0;
 
-err_iio_unregister:
-	iio_device_unregister(indio_dev);
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 err_free_irq:
@@ -967,11 +964,12 @@ static int bmc150_magn_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct bmc150_magn_data *data = iio_priv(indio_dev);
 
+	iio_device_unregister(indio_dev);
+
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
-	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 
 	if (client->irq > 0)
diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
index e544fcfd5ced..93e29fb67fa0 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -13,7 +13,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
- * TODO: runtime pm, interrupt mode, and signal strength reporting
+ * TODO: interrupt mode, and signal strength reporting
  */
 
 #include <linux/err.h>
@@ -21,6 +21,7 @@
 #include <linux/i2c.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/pm_runtime.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/iio/buffer.h>
@@ -35,8 +36,11 @@
 #define LIDAR_REG_STATUS_INVALID	BIT(3)
 #define LIDAR_REG_STATUS_READY		BIT(0)
 
-#define LIDAR_REG_DATA_HBYTE	0x0f
-#define LIDAR_REG_DATA_LBYTE	0x10
+#define LIDAR_REG_DATA_HBYTE		0x0f
+#define LIDAR_REG_DATA_LBYTE		0x10
+#define LIDAR_REG_DATA_WORD_READ	BIT(7)
+
+#define LIDAR_REG_PWR_CONTROL	0x65
 
 #define LIDAR_DRV_NAME "lidar"
 
@@ -44,6 +48,9 @@ struct lidar_data {
 	struct iio_dev *indio_dev;
 	struct i2c_client *client;
 
+	int (*xfer)(struct lidar_data *data, u8 reg, u8 *val, int len);
+	int i2c_enabled;
+
 	u16 buffer[8]; /* 2 byte distance + 8 byte timestamp */
 };
 
@@ -62,7 +69,28 @@ static const struct iio_chan_spec lidar_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(1),
 };
 
-static int lidar_read_byte(struct lidar_data *data, int reg)
+static int lidar_i2c_xfer(struct lidar_data *data, u8 reg, u8 *val, int len)
+{
+	struct i2c_client *client = data->client;
+	struct i2c_msg msg[2];
+	int ret;
+
+	msg[0].addr = client->addr;
+	msg[0].flags = client->flags | I2C_M_STOP;
+	msg[0].len = 1;
+	msg[0].buf  = (char *) &reg;
+
+	msg[1].addr = client->addr;
+	msg[1].flags = client->flags | I2C_M_RD;
+	msg[1].len = len;
+	msg[1].buf = (char *) val;
+
+	ret = i2c_transfer(client->adapter, msg, 2);
+
+	return (ret == 2) ? 0 : ret;
+}
+
+static int lidar_smbus_xfer(struct lidar_data *data, u8 reg, u8 *val, int len)
 {
 	struct i2c_client *client = data->client;
 	int ret;
@@ -72,17 +100,35 @@ static int lidar_read_byte(struct lidar_data *data, int reg)
 	 * so in turn i2c_smbus_read_byte_data cannot be used
 	 */
 
-	ret = i2c_smbus_write_byte(client, reg);
-	if (ret < 0) {
-		dev_err(&client->dev, "cannot write addr value");
-		return ret;
+	while (len--) {
+		ret = i2c_smbus_write_byte(client, reg++);
+		if (ret < 0) {
+			dev_err(&client->dev, "cannot write addr value");
+			return ret;
+		}
+
+		ret = i2c_smbus_read_byte(client);
+		if (ret < 0) {
+			dev_err(&client->dev, "cannot read data value");
+			return ret;
+		}
+
+		*(val++) = ret;
 	}
 
-	ret = i2c_smbus_read_byte(client);
+	return 0;
+}
+
+static int lidar_read_byte(struct lidar_data *data, u8 reg)
+{
+	int ret;
+	u8 val;
+
+	ret = data->xfer(data, reg, &val, 1);
 	if (ret < 0)
-		dev_err(&client->dev, "cannot read data value");
+		return ret;
 
-	return ret;
+	return val;
 }
 
 static inline int lidar_write_control(struct lidar_data *data, int val)
@@ -90,24 +136,22 @@ static inline int lidar_write_control(struct lidar_data *data, int val)
 	return i2c_smbus_write_byte_data(data->client, LIDAR_REG_CONTROL, val);
 }
 
-static int lidar_read_measurement(struct lidar_data *data, u16 *reg)
+static inline int lidar_write_power(struct lidar_data *data, int val)
 {
-	int ret;
-	int val;
-
-	ret = lidar_read_byte(data, LIDAR_REG_DATA_HBYTE);
-	if (ret < 0)
-		return ret;
-	val = ret << 8;
+	return i2c_smbus_write_byte_data(data->client,
+					 LIDAR_REG_PWR_CONTROL, val);
+}
 
-	ret = lidar_read_byte(data, LIDAR_REG_DATA_LBYTE);
-	if (ret < 0)
-		return ret;
+static int lidar_read_measurement(struct lidar_data *data, u16 *reg)
+{
+	int ret = data->xfer(data, LIDAR_REG_DATA_HBYTE |
+			(data->i2c_enabled ? LIDAR_REG_DATA_WORD_READ : 0),
+			(u8 *) reg, 2);
 
-	val |= ret;
-	*reg = val;
+	if (!ret)
+		*reg = be16_to_cpu(*reg);
 
-	return 0;
+	return ret;
 }
 
 static int lidar_get_measurement(struct lidar_data *data, u16 *reg)
@@ -116,6 +160,8 @@ static int lidar_get_measurement(struct lidar_data *data, u16 *reg)
 	int tries = 10;
 	int ret;
 
+	pm_runtime_get_sync(&client->dev);
+
 	/* start sample */
 	ret = lidar_write_control(data, LIDAR_REG_CONTROL_ACQUIRE);
 	if (ret < 0) {
@@ -144,6 +190,8 @@ static int lidar_get_measurement(struct lidar_data *data, u16 *reg)
 		}
 		ret = -EIO;
 	}
+	pm_runtime_mark_last_busy(&client->dev);
+	pm_runtime_put_autosuspend(&client->dev);
 
 	return ret;
 }
@@ -221,6 +269,16 @@ static int lidar_probe(struct i2c_client *client,
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
 		return -ENOMEM;
+	data = iio_priv(indio_dev);
+
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		data->xfer = lidar_i2c_xfer;
+		data->i2c_enabled = 1;
+	} else if (i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BYTE))
+		data->xfer = lidar_smbus_xfer;
+	else
+		return -ENOTSUPP;
 
 	indio_dev->info = &lidar_info;
 	indio_dev->name = LIDAR_DRV_NAME;
@@ -228,7 +286,6 @@ static int lidar_probe(struct i2c_client *client,
 	indio_dev->num_channels = ARRAY_SIZE(lidar_channels);
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
-	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 
 	data->client = client;
@@ -243,6 +300,17 @@ static int lidar_probe(struct i2c_client *client,
 	if (ret)
 		goto error_unreg_buffer;
 
+	pm_runtime_set_autosuspend_delay(&client->dev, 1000);
+	pm_runtime_use_autosuspend(&client->dev);
+
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret)
+		goto error_unreg_buffer;
+	pm_runtime_enable(&client->dev);
+
+	pm_runtime_mark_last_busy(&client->dev);
+	pm_runtime_idle(&client->dev);
+
 	return 0;
 
 error_unreg_buffer:
@@ -258,6 +326,9 @@ static int lidar_remove(struct i2c_client *client)
 	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 
+	pm_runtime_disable(&client->dev);
+	pm_runtime_set_suspended(&client->dev);
+
 	return 0;
 }
 
@@ -273,10 +344,38 @@ static const struct of_device_id lidar_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, lidar_dt_ids);
 
+#ifdef CONFIG_PM
+static int lidar_pm_runtime_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct lidar_data *data = iio_priv(indio_dev);
+
+	return lidar_write_power(data, 0x0f);
+}
+
+static int lidar_pm_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct lidar_data *data = iio_priv(indio_dev);
+	int ret = lidar_write_power(data, 0);
+
+	/* regulator and FPGA needs settling time */
+	usleep_range(15000, 20000);
+
+	return ret;
+}
+#endif
+
+static const struct dev_pm_ops lidar_pm_ops = {
+	SET_RUNTIME_PM_OPS(lidar_pm_runtime_suspend,
+			   lidar_pm_runtime_resume, NULL)
+};
+
 static struct i2c_driver lidar_driver = {
 	.driver = {
 		.name	= LIDAR_DRV_NAME,
 		.of_match_table	= of_match_ptr(lidar_dt_ids),
+		.pm	= &lidar_pm_ops,
 	},
 	.probe		= lidar_probe,
 	.remove		= lidar_remove,
diff --git a/drivers/iio/trigger/Kconfig b/drivers/iio/trigger/Kconfig
index 79996123a71b..519e6772f6f5 100644
--- a/drivers/iio/trigger/Kconfig
+++ b/drivers/iio/trigger/Kconfig
@@ -5,6 +5,16 @@
 
 menu "Triggers - standalone"
 
+config IIO_HRTIMER_TRIGGER
+	tristate "High resolution timer trigger"
+	depends on IIO_SW_TRIGGER
+	help
+	  Provides a frequency based IIO trigger using high resolution
+	  timers as interrupt source.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called iio-trig-hrtimer.
+
 config IIO_INTERRUPT_TRIGGER
 	tristate "Generic interrupt trigger"
 	help
diff --git a/drivers/iio/trigger/Makefile b/drivers/iio/trigger/Makefile
index 0694daecaf22..fe06eb564367 100644
--- a/drivers/iio/trigger/Makefile
+++ b/drivers/iio/trigger/Makefile
@@ -3,5 +3,7 @@
 #
 
 # When adding new entries keep the list in alphabetical order
+
+obj-$(CONFIG_IIO_HRTIMER_TRIGGER) += iio-trig-hrtimer.o
 obj-$(CONFIG_IIO_INTERRUPT_TRIGGER) += iio-trig-interrupt.o
 obj-$(CONFIG_IIO_SYSFS_TRIGGER) += iio-trig-sysfs.o
diff --git a/drivers/iio/trigger/iio-trig-hrtimer.c b/drivers/iio/trigger/iio-trig-hrtimer.c
new file mode 100644
index 000000000000..5e6d451febeb
--- /dev/null
+++ b/drivers/iio/trigger/iio-trig-hrtimer.c
@@ -0,0 +1,193 @@
+/**
+ * The industrial I/O periodic hrtimer trigger driver
+ *
+ * Copyright (C) Intuitive Aerial AB
+ * Written by Marten Svanfeldt, marten@intuitiveaerial.com
+ * Copyright (C) 2012, Analog Device Inc.
+ *	Author: Lars-Peter Clausen <lars@metafoo.de>
+ * Copyright (C) 2015, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/hrtimer.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/sw_trigger.h>
+
+/* default sampling frequency - 100Hz */
+#define HRTIMER_DEFAULT_SAMPLING_FREQUENCY 100
+
+struct iio_hrtimer_info {
+	struct iio_sw_trigger swt;
+	struct hrtimer timer;
+	unsigned long sampling_frequency;
+	ktime_t period;
+};
+
+static struct config_item_type iio_hrtimer_type = {
+	.ct_owner = THIS_MODULE,
+};
+
+static
+ssize_t iio_hrtimer_show_sampling_frequency(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
+{
+	struct iio_trigger *trig = to_iio_trigger(dev);
+	struct iio_hrtimer_info *info = iio_trigger_get_drvdata(trig);
+
+	return snprintf(buf, PAGE_SIZE, "%lu\n", info->sampling_frequency);
+}
+
+static
+ssize_t iio_hrtimer_store_sampling_frequency(struct device *dev,
+					     struct device_attribute *attr,
+					     const char *buf, size_t len)
+{
+	struct iio_trigger *trig = to_iio_trigger(dev);
+	struct iio_hrtimer_info *info = iio_trigger_get_drvdata(trig);
+	unsigned long val;
+	int ret;
+
+	ret = kstrtoul(buf, 10, &val);
+	if (ret)
+		return ret;
+
+	if (!val || val > NSEC_PER_SEC)
+		return -EINVAL;
+
+	info->sampling_frequency = val;
+	info->period = ktime_set(0, NSEC_PER_SEC / val);
+
+	return len;
+}
+
+static DEVICE_ATTR(sampling_frequency, S_IRUGO | S_IWUSR,
+		   iio_hrtimer_show_sampling_frequency,
+		   iio_hrtimer_store_sampling_frequency);
+
+static struct attribute *iio_hrtimer_attrs[] = {
+	&dev_attr_sampling_frequency.attr,
+	NULL
+};
+
+static const struct attribute_group iio_hrtimer_attr_group = {
+	.attrs = iio_hrtimer_attrs,
+};
+
+static const struct attribute_group *iio_hrtimer_attr_groups[] = {
+	&iio_hrtimer_attr_group,
+	NULL
+};
+
+static enum hrtimer_restart iio_hrtimer_trig_handler(struct hrtimer *timer)
+{
+	struct iio_hrtimer_info *info;
+
+	info = container_of(timer, struct iio_hrtimer_info, timer);
+
+	hrtimer_forward_now(timer, info->period);
+	iio_trigger_poll(info->swt.trigger);
+
+	return HRTIMER_RESTART;
+}
+
+static int iio_trig_hrtimer_set_state(struct iio_trigger *trig, bool state)
+{
+	struct iio_hrtimer_info *trig_info;
+
+	trig_info = iio_trigger_get_drvdata(trig);
+
+	if (state)
+		hrtimer_start(&trig_info->timer, trig_info->period,
+			      HRTIMER_MODE_REL);
+	else
+		hrtimer_cancel(&trig_info->timer);
+
+	return 0;
+}
+
+static const struct iio_trigger_ops iio_hrtimer_trigger_ops = {
+	.owner = THIS_MODULE,
+	.set_trigger_state = iio_trig_hrtimer_set_state,
+};
+
+static struct iio_sw_trigger *iio_trig_hrtimer_probe(const char *name)
+{
+	struct iio_hrtimer_info *trig_info;
+	int ret;
+
+	trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL);
+	if (!trig_info)
+		return ERR_PTR(-ENOMEM);
+
+	trig_info->swt.trigger = iio_trigger_alloc("%s", name);
+	if (!trig_info->swt.trigger) {
+		ret = -ENOMEM;
+		goto err_free_trig_info;
+	}
+
+	iio_trigger_set_drvdata(trig_info->swt.trigger, trig_info);
+	trig_info->swt.trigger->ops = &iio_hrtimer_trigger_ops;
+	trig_info->swt.trigger->dev.groups = iio_hrtimer_attr_groups;
+
+	hrtimer_init(&trig_info->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	trig_info->timer.function = iio_hrtimer_trig_handler;
+
+	trig_info->sampling_frequency = HRTIMER_DEFAULT_SAMPLING_FREQUENCY;
+	trig_info->period = ktime_set(0, NSEC_PER_SEC /
+				      trig_info->sampling_frequency);
+
+	ret = iio_trigger_register(trig_info->swt.trigger);
+	if (ret)
+		goto err_free_trigger;
+
+	iio_swt_group_init_type_name(&trig_info->swt, name, &iio_hrtimer_type);
+	return &trig_info->swt;
+err_free_trigger:
+	iio_trigger_free(trig_info->swt.trigger);
+err_free_trig_info:
+	kfree(trig_info);
+
+	return ERR_PTR(ret);
+}
+
+static int iio_trig_hrtimer_remove(struct iio_sw_trigger *swt)
+{
+	struct iio_hrtimer_info *trig_info;
+
+	trig_info = iio_trigger_get_drvdata(swt->trigger);
+
+	iio_trigger_unregister(swt->trigger);
+
+	/* cancel the timer after unreg to make sure no one rearms it */
+	hrtimer_cancel(&trig_info->timer);
+	iio_trigger_free(swt->trigger);
+	kfree(trig_info);
+
+	return 0;
+}
+
+static const struct iio_sw_trigger_ops iio_trig_hrtimer_ops = {
+	.probe		= iio_trig_hrtimer_probe,
+	.remove		= iio_trig_hrtimer_remove,
+};
+
+static struct iio_sw_trigger_type iio_trig_hrtimer = {
+	.name = "hrtimer",
+	.owner = THIS_MODULE,
+	.ops = &iio_trig_hrtimer_ops,
+};
+
+module_iio_sw_trigger_driver(iio_trig_hrtimer);
+
+MODULE_AUTHOR("Marten Svanfeldt <marten@intuitiveaerial.com>");
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("Periodic hrtimer trigger for the IIO subsystem");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index c9cffced00ca..326d07d823a5 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -449,7 +449,7 @@ static void act_open_req_arp_failure(void *handle, struct sk_buff *skb)
 {
 	struct c4iw_ep *ep = handle;
 
-	printk(KERN_ERR MOD "ARP failure duing connect\n");
+	printk(KERN_ERR MOD "ARP failure during connect\n");
 	kfree_skb(skb);
 	connect_reply_upcall(ep, -EHOSTUNREACH);
 	state_set(&ep->com, DEAD);
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index bef317ff7352..b9f01bd1b7ef 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -96,7 +96,7 @@ struct gpio_keys_drvdata {
  * Return value of this function can be used to allocate bitmap
  * large enough to hold all bits for given type.
  */
-static inline int get_n_events_by_type(int type)
+static int get_n_events_by_type(int type)
 {
 	BUG_ON(type != EV_SW && type != EV_KEY);
 
@@ -104,6 +104,22 @@ static inline int get_n_events_by_type(int type)
 }
 
 /**
+ * get_bm_events_by_type() - returns bitmap of supported events per @type
+ * @input: input device from which bitmap is retrieved
+ * @type: type of button (%EV_KEY, %EV_SW)
+ *
+ * Return value of this function can be used to allocate bitmap
+ * large enough to hold all bits for given type.
+ */
+static const unsigned long *get_bm_events_by_type(struct input_dev *dev,
+						  int type)
+{
+	BUG_ON(type != EV_SW && type != EV_KEY);
+
+	return (type == EV_KEY) ? dev->keybit : dev->swbit;
+}
+
+/**
  * gpio_keys_disable_button() - disables given GPIO button
  * @bdata: button data for button to be disabled
  *
@@ -213,6 +229,7 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 					   const char *buf, unsigned int type)
 {
 	int n_events = get_n_events_by_type(type);
+	const unsigned long *bitmap = get_bm_events_by_type(ddata->input, type);
 	unsigned long *bits;
 	ssize_t error;
 	int i;
@@ -226,6 +243,11 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 		goto out;
 
 	/* First validate */
+	if (!bitmap_subset(bits, bitmap, n_events)) {
+		error = -EINVAL;
+		goto out;
+	}
+
 	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
 
@@ -239,11 +261,6 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
 		}
 	}
 
-	if (i == ddata->pdata->nbuttons) {
-		error = -EINVAL;
-		goto out;
-	}
-
 	mutex_lock(&ddata->disable_lock);
 
 	for (i = 0; i < ddata->pdata->nbuttons; i++) {
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 7502e46165fa..e0d72c8c01e4 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -155,14 +155,6 @@ static void omap_kp_tasklet(unsigned long data)
 			       "pressed" : "released");
 #else
 			key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
-			if (key < 0) {
-				printk(KERN_WARNING
-				      "omap-keypad: Spurious key event %d-%d\n",
-				       col, row);
-				/* We scan again after a couple of seconds */
-				spurious = 1;
-				continue;
-			}
 
 			if (!(kp_cur_group == (key & GROUP_MASK) ||
 			      kp_cur_group == -1))
@@ -292,8 +284,8 @@ static int omap_kp_probe(struct platform_device *pdev)
 	setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
 
 	/* get the irq and init timer*/
-	tasklet_enable(&kp_tasklet);
 	kp_tasklet.data = (unsigned long) omap_kp;
+	tasklet_enable(&kp_tasklet);
 
 	ret = device_create_file(&pdev->dev, &dev_attr_enable);
 	if (ret < 0)
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index 1d0e61d7c131..b0d445390ee4 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -147,7 +147,7 @@ struct bma150_data {
  * are stated and verified by Bosch Sensortec where they are configured
  * to provide a generic sensitivity performance.
  */
-static struct bma150_cfg default_cfg = {
+static const struct bma150_cfg default_cfg = {
 	.any_motion_int = 1,
 	.hg_int = 1,
 	.lg_int = 1,
diff --git a/drivers/input/misc/da9063_onkey.c b/drivers/input/misc/da9063_onkey.c
index 8eb697db82d0..bb863e062b03 100644
--- a/drivers/input/misc/da9063_onkey.c
+++ b/drivers/input/misc/da9063_onkey.c
@@ -179,13 +179,13 @@ static irqreturn_t da9063_onkey_irq_handler(int irq, void *data)
 		input_report_key(onkey->input, KEY_POWER, 1);
 		input_sync(onkey->input);
 		schedule_delayed_work(&onkey->work, 0);
-		dev_dbg(onkey->dev, "KEY_POWER pressed.\n");
+		dev_dbg(onkey->dev, "KEY_POWER long press.\n");
 	} else {
-		input_report_key(onkey->input, KEY_SLEEP, 1);
+		input_report_key(onkey->input, KEY_POWER, 1);
 		input_sync(onkey->input);
-		input_report_key(onkey->input, KEY_SLEEP, 0);
+		input_report_key(onkey->input, KEY_POWER, 0);
 		input_sync(onkey->input);
-		dev_dbg(onkey->dev, "KEY_SLEEP pressed.\n");
+		dev_dbg(onkey->dev, "KEY_POWER short press.\n");
 	}
 
 	return IRQ_HANDLED;
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index 6f997aa49183..4a5afc7fe96e 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -345,23 +345,19 @@ static struct platform_driver grover_beep_driver = {
 	.shutdown	= sparcspkr_shutdown,
 };
 
+static struct platform_driver * const drivers[] = {
+	&bbc_beep_driver,
+	&grover_beep_driver,
+};
+
 static int __init sparcspkr_init(void)
 {
-	int err = platform_driver_register(&bbc_beep_driver);
-
-	if (!err) {
-		err = platform_driver_register(&grover_beep_driver);
-		if (err)
-			platform_driver_unregister(&bbc_beep_driver);
-	}
-
-	return err;
+	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 
 static void __exit sparcspkr_exit(void)
 {
-	platform_driver_unregister(&bbc_beep_driver);
-	platform_driver_unregister(&grover_beep_driver);
+	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
 }
 
 module_init(sparcspkr_init);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 5adbcedcb81c..4eb9e4d94f46 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -256,13 +256,29 @@ static void uinput_destroy_device(struct uinput_device *udev)
 static int uinput_create_device(struct uinput_device *udev)
 {
 	struct input_dev *dev = udev->dev;
-	int error;
+	int error, nslot;
 
 	if (udev->state != UIST_SETUP_COMPLETE) {
 		printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
 		return -EINVAL;
 	}
 
+	if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+		nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+		error = input_mt_init_slots(dev, nslot, 0);
+		if (error)
+			goto fail1;
+	} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+		input_set_events_per_packet(dev, 60);
+	}
+
+	if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) {
+		printk(KERN_DEBUG "%s: ff_effects_max should be non-zero when FF_BIT is set\n",
+			UINPUT_NAME);
+		error = -EINVAL;
+		goto fail1;
+	}
+
 	if (udev->ff_effects_max) {
 		error = input_ff_create(dev, udev->ff_effects_max);
 		if (error)
@@ -308,10 +324,35 @@ static int uinput_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
+				   const struct input_absinfo *abs)
+{
+	int min, max;
+
+	min = abs->minimum;
+	max = abs->maximum;
+
+	if ((min != 0 || max != 0) && max <= min) {
+		printk(KERN_DEBUG
+		       "%s: invalid abs[%02x] min:%d max:%d\n",
+		       UINPUT_NAME, code, min, max);
+		return -EINVAL;
+	}
+
+	if (abs->flat > max - min) {
+		printk(KERN_DEBUG
+		       "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n",
+		       UINPUT_NAME, code, abs->flat, min, max);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int uinput_validate_absbits(struct input_dev *dev)
 {
 	unsigned int cnt;
-	int nslot;
+	int error;
 
 	if (!test_bit(EV_ABS, dev->evbit))
 		return 0;
@@ -321,38 +362,12 @@ static int uinput_validate_absbits(struct input_dev *dev)
 	 */
 
 	for_each_set_bit(cnt, dev->absbit, ABS_CNT) {
-		int min, max;
-
-		min = input_abs_get_min(dev, cnt);
-		max = input_abs_get_max(dev, cnt);
-
-		if ((min != 0 || max != 0) && max <= min) {
-			printk(KERN_DEBUG
-				"%s: invalid abs[%02x] min:%d max:%d\n",
-				UINPUT_NAME, cnt,
-				input_abs_get_min(dev, cnt),
-				input_abs_get_max(dev, cnt));
+		if (!dev->absinfo)
 			return -EINVAL;
-		}
 
-		if (input_abs_get_flat(dev, cnt) >
-		    input_abs_get_max(dev, cnt) - input_abs_get_min(dev, cnt)) {
-			printk(KERN_DEBUG
-				"%s: abs_flat #%02x out of range: %d "
-				"(min:%d/max:%d)\n",
-				UINPUT_NAME, cnt,
-				input_abs_get_flat(dev, cnt),
-				input_abs_get_min(dev, cnt),
-				input_abs_get_max(dev, cnt));
-			return -EINVAL;
-		}
-	}
-
-	if (test_bit(ABS_MT_SLOT, dev->absbit)) {
-		nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
-		input_mt_init_slots(dev, nslot, 0);
-	} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
-		input_set_events_per_packet(dev, 60);
+		error = uinput_validate_absinfo(dev, cnt, &dev->absinfo[cnt]);
+		if (error)
+			return error;
 	}
 
 	return 0;
@@ -370,8 +385,71 @@ static int uinput_allocate_device(struct uinput_device *udev)
 	return 0;
 }
 
-static int uinput_setup_device(struct uinput_device *udev,
-			       const char __user *buffer, size_t count)
+static int uinput_dev_setup(struct uinput_device *udev,
+			    struct uinput_setup __user *arg)
+{
+	struct uinput_setup setup;
+	struct input_dev *dev;
+
+	if (udev->state == UIST_CREATED)
+		return -EINVAL;
+
+	if (copy_from_user(&setup, arg, sizeof(setup)))
+		return -EFAULT;
+
+	if (!setup.name[0])
+		return -EINVAL;
+
+	dev = udev->dev;
+	dev->id = setup.id;
+	udev->ff_effects_max = setup.ff_effects_max;
+
+	kfree(dev->name);
+	dev->name = kstrndup(setup.name, UINPUT_MAX_NAME_SIZE, GFP_KERNEL);
+	if (!dev->name)
+		return -ENOMEM;
+
+	udev->state = UIST_SETUP_COMPLETE;
+	return 0;
+}
+
+static int uinput_abs_setup(struct uinput_device *udev,
+			    struct uinput_setup __user *arg, size_t size)
+{
+	struct uinput_abs_setup setup = {};
+	struct input_dev *dev;
+	int error;
+
+	if (size > sizeof(setup))
+		return -E2BIG;
+
+	if (udev->state == UIST_CREATED)
+		return -EINVAL;
+
+	if (copy_from_user(&setup, arg, size))
+		return -EFAULT;
+
+	if (setup.code > ABS_MAX)
+		return -ERANGE;
+
+	dev = udev->dev;
+
+	error = uinput_validate_absinfo(dev, setup.code, &setup.absinfo);
+	if (error)
+		return error;
+
+	input_alloc_absinfo(dev);
+	if (!dev->absinfo)
+		return -ENOMEM;
+
+	set_bit(setup.code, dev->absbit);
+	dev->absinfo[setup.code] = setup.absinfo;
+	return 0;
+}
+
+/* legacy setup via write() */
+static int uinput_setup_device_legacy(struct uinput_device *udev,
+				      const char __user *buffer, size_t count)
 {
 	struct uinput_user_dev	*user_dev;
 	struct input_dev	*dev;
@@ -474,7 +552,7 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer,
 
 	retval = udev->state == UIST_CREATED ?
 			uinput_inject_events(udev, buffer, count) :
-			uinput_setup_device(udev, buffer, count);
+			uinput_setup_device_legacy(udev, buffer, count);
 
 	mutex_unlock(&udev->mutex);
 
@@ -735,6 +813,12 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 			uinput_destroy_device(udev);
 			goto out;
 
+		case UI_DEV_SETUP:
+			retval = uinput_dev_setup(udev, p);
+			goto out;
+
+		/* UI_ABS_SETUP is handled in the variable size ioctls */
+
 		case UI_SET_EVBIT:
 			retval = uinput_set_bit(arg, evbit, EV_MAX);
 			goto out;
@@ -879,6 +963,10 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 		name = dev_name(&udev->dev->dev);
 		retval = uinput_str_to_user(p, name, size);
 		goto out;
+
+	case UI_ABS_SETUP & ~IOCSIZE_MASK:
+		retval = uinput_abs_setup(udev, p, size);
+		goto out;
 	}
 
 	retval = -EINVAL;
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 41e6cb501e6a..936f07a4e35f 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -31,6 +31,7 @@
 #define ALPS_CMD_NIBBLE_10	0x01f2
 
 #define ALPS_REG_BASE_RUSHMORE	0xc2c0
+#define ALPS_REG_BASE_V7	0xc2c0
 #define ALPS_REG_BASE_PINNACLE	0x0000
 
 static const struct alps_nibble_commands alps_v3_nibble_commands[] = {
@@ -2047,7 +2048,7 @@ static int alps_absolute_mode_v3(struct psmouse *psmouse)
 	return 0;
 }
 
-static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base)
+static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base)
 {
 	int ret = -EIO, reg_val;
 
@@ -2128,15 +2129,12 @@ error:
 
 static int alps_hw_init_v3(struct psmouse *psmouse)
 {
+	struct alps_data *priv = psmouse->private;
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	int reg_val;
 	unsigned char param[4];
 
-	reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE);
-	if (reg_val == -EIO)
-		goto error;
-
-	if (reg_val == 0 &&
+	if ((priv->flags & ALPS_DUALPOINT) &&
 	    alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO)
 		goto error;
 
@@ -2613,6 +2611,11 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		priv->decode_fields = alps_decode_pinnacle;
 		priv->nibble_commands = alps_v3_nibble_commands;
 		priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
+
+		if (alps_probe_trackstick_v3_v7(psmouse,
+						ALPS_REG_BASE_PINNACLE) < 0)
+			priv->flags &= ~ALPS_DUALPOINT;
+
 		break;
 
 	case ALPS_PROTO_V3_RUSHMORE:
@@ -2625,8 +2628,8 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		priv->x_bits = 16;
 		priv->y_bits = 12;
 
-		if (alps_probe_trackstick_v3(psmouse,
-					     ALPS_REG_BASE_RUSHMORE) < 0)
+		if (alps_probe_trackstick_v3_v7(psmouse,
+						ALPS_REG_BASE_RUSHMORE) < 0)
 			priv->flags &= ~ALPS_DUALPOINT;
 
 		break;
@@ -2676,6 +2679,9 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		if (priv->fw_ver[1] != 0xba)
 			priv->flags |= ALPS_BUTTONPAD;
 
+		if (alps_probe_trackstick_v3_v7(psmouse, ALPS_REG_BASE_V7) < 0)
+			priv->flags &= ~ALPS_DUALPOINT;
+
 		break;
 
 	case ALPS_PROTO_V8:
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 537ebb0e193a..78f93cf68840 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1222,7 +1222,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
 					     ETP_WMAX_V2, 0, 0);
 		}
-		input_mt_init_slots(dev, 2, 0);
+		input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
 		break;
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index 4d5576de81be..c8c6a8cc329d 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -49,12 +49,6 @@ int focaltech_detect(struct psmouse *psmouse, bool set_properties)
 	return 0;
 }
 
-static void focaltech_reset(struct psmouse *psmouse)
-{
-	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
-	psmouse_reset(psmouse);
-}
-
 #ifdef CONFIG_MOUSE_PS2_FOCALTECH
 
 /*
@@ -300,6 +294,12 @@ static int focaltech_switch_protocol(struct psmouse *psmouse)
 	return 0;
 }
 
+static void focaltech_reset(struct psmouse *psmouse)
+{
+	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+	psmouse_reset(psmouse);
+}
+
 static void focaltech_disconnect(struct psmouse *psmouse)
 {
 	focaltech_reset(psmouse);
@@ -456,14 +456,4 @@ fail:
 	kfree(priv);
 	return error;
 }
-
-#else /* CONFIG_MOUSE_PS2_FOCALTECH */
-
-int focaltech_init(struct psmouse *psmouse)
-{
-	focaltech_reset(psmouse);
-
-	return 0;
-}
-
 #endif /* CONFIG_MOUSE_PS2_FOCALTECH */
diff --git a/drivers/input/mouse/focaltech.h b/drivers/input/mouse/focaltech.h
index ca61ebff373e..783b28e8e10b 100644
--- a/drivers/input/mouse/focaltech.h
+++ b/drivers/input/mouse/focaltech.h
@@ -18,6 +18,14 @@
 #define _FOCALTECH_H
 
 int focaltech_detect(struct psmouse *psmouse, bool set_properties);
+
+#ifdef CONFIG_MOUSE_PS2_FOCALTECH
 int focaltech_init(struct psmouse *psmouse);
+#else
+static inline int focaltech_init(struct psmouse *psmouse)
+{
+	return -ENOSYS;
+}
+#endif
 
 #endif
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 136e222e2a16..422da1cd9e76 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -325,7 +325,7 @@ static void ps2pp_set_model_properties(struct psmouse *psmouse,
  * that support it.
  */
 
-int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+int ps2pp_detect(struct psmouse *psmouse, bool set_properties)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[4];
diff --git a/drivers/input/mouse/logips2pp.h b/drivers/input/mouse/logips2pp.h
index 0c186f0282d9..bf629453e095 100644
--- a/drivers/input/mouse/logips2pp.h
+++ b/drivers/input/mouse/logips2pp.h
@@ -12,9 +12,9 @@
 #define _LOGIPS2PP_H
 
 #ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
-int ps2pp_init(struct psmouse *psmouse, bool set_properties);
+int ps2pp_detect(struct psmouse *psmouse, bool set_properties);
 #else
-inline int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+static inline int ps2pp_detect(struct psmouse *psmouse, bool set_properties)
 {
 	return -ENOSYS;
 }
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index ad18dab0ac47..b9e4ee34c132 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -119,6 +119,7 @@ struct psmouse_protocol {
 	enum psmouse_type type;
 	bool maxproto;
 	bool ignore_parity; /* Protocol should ignore parity errors from KBC */
+	bool try_passthru; /* Try protocol also on passthrough ports */
 	const char *name;
 	const char *alias;
 	int (*detect)(struct psmouse *, bool);
@@ -129,7 +130,6 @@ struct psmouse_protocol {
  * psmouse_process_byte() analyzes the PS/2 data stream and reports
  * relevant events to the input module once full packet has arrived.
  */
-
 psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
@@ -138,22 +138,16 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
 	if (psmouse->pktcnt < psmouse->pktsize)
 		return PSMOUSE_GOOD_DATA;
 
-/*
- * Full packet accumulated, process it
- */
+	/* Full packet accumulated, process it */
 
-/*
- * Scroll wheel on IntelliMice, scroll buttons on NetMice
- */
-
-	if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS)
+	switch (psmouse->type) {
+	case PSMOUSE_IMPS:
+		/* IntelliMouse has scroll wheel */
 		input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
+		break;
 
-/*
- * Scroll wheel and buttons on IntelliMouse Explorer
- */
-
-	if (psmouse->type == PSMOUSE_IMEX) {
+	case PSMOUSE_IMEX:
+		/* Scroll wheel and buttons on IntelliMouse Explorer */
 		switch (packet[3] & 0xC0) {
 		case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */
 			input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
@@ -168,39 +162,42 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
 			input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
 			break;
 		}
-	}
+		break;
 
-/*
- * Extra buttons on Genius NewNet 3D
- */
+	case PSMOUSE_GENPS:
+		/* Report scroll buttons on NetMice */
+		input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
 
-	if (psmouse->type == PSMOUSE_GENPS) {
+		/* Extra buttons on Genius NewNet 3D */
 		input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1);
 		input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
-	}
+		break;
 
-/*
- * Extra button on ThinkingMouse
- */
-	if (psmouse->type == PSMOUSE_THINKPS) {
+	case PSMOUSE_THINKPS:
+		/* Extra button on ThinkingMouse */
 		input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
-		/* Without this bit of weirdness moving up gives wildly high Y changes. */
+
+		/*
+		 * Without this bit of weirdness moving up gives wildly
+		 * high Y changes.
+		 */
 		packet[1] |= (packet[0] & 0x40) << 1;
-	}
+		break;
 
-/*
- * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first
- * byte.
- */
-	if (psmouse->type == PSMOUSE_CORTRON) {
+	case PSMOUSE_CORTRON:
+		/*
+		 * Cortron PS2 Trackball reports SIDE button in the
+		 * 4th bit of the first byte.
+		 */
 		input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1);
 		packet[0] |= 0x08;
-	}
+		break;
 
-/*
- * Generic PS/2 Mouse
- */
+	default:
+		break;
+	}
 
+	/* Generic PS/2 Mouse */
 	input_report_key(dev, BTN_LEFT,    packet[0]       & 1);
 	input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
 	input_report_key(dev, BTN_RIGHT,  (packet[0] >> 1) & 1);
@@ -222,7 +219,6 @@ void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
 /*
  * __psmouse_set_state() sets new psmouse state and resets all flags.
  */
-
 static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
 {
 	psmouse->state = new_state;
@@ -231,13 +227,11 @@ static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_sta
 	psmouse->last = jiffies;
 }
 
-
 /*
  * psmouse_set_state() sets new psmouse state and resets all flags and
  * counters while holding serio lock so fighting with interrupt handler
  * is not a concern.
  */
-
 void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
 {
 	serio_pause_rx(psmouse->ps2dev.serio);
@@ -249,7 +243,6 @@ void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
  * psmouse_handle_byte() processes one byte of the input data stream
  * by calling corresponding protocol handler.
  */
-
 static int psmouse_handle_byte(struct psmouse *psmouse)
 {
 	psmouse_ret_t rc = psmouse->protocol_handler(psmouse);
@@ -292,7 +285,6 @@ static int psmouse_handle_byte(struct psmouse *psmouse)
  * psmouse_interrupt() handles incoming characters, either passing them
  * for normal processing or gathering them as command response.
  */
-
 static irqreturn_t psmouse_interrupt(struct serio *serio,
 		unsigned char data, unsigned int flags)
 {
@@ -335,9 +327,8 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 	}
 
 	psmouse->packet[psmouse->pktcnt++] = data;
-/*
- * Check if this is a new device announcement (0xAA 0x00)
- */
+
+	/* Check if this is a new device announcement (0xAA 0x00) */
 	if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) {
 		if (psmouse->pktcnt == 1) {
 			psmouse->last = jiffies;
@@ -351,9 +342,8 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 			serio_reconnect(serio);
 			goto out;
 		}
-/*
- * Not a new device, try processing first byte normally
- */
+
+		/* Not a new device, try processing first byte normally */
 		psmouse->pktcnt = 1;
 		if (psmouse_handle_byte(psmouse))
 			goto out;
@@ -361,9 +351,10 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 		psmouse->packet[psmouse->pktcnt++] = data;
 	}
 
-/*
- * See if we need to force resync because mouse was idle for too long
- */
+	/*
+	 * See if we need to force resync because mouse was idle for
+	 * too long.
+	 */
 	if (psmouse->state == PSMOUSE_ACTIVATED &&
 	    psmouse->pktcnt == 1 && psmouse->resync_time &&
 	    time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) {
@@ -380,7 +371,6 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
 	return IRQ_HANDLED;
 }
 
-
 /*
  * psmouse_sliced_command() sends an extended PS/2 command to the mouse
  * using sliced syntax, understood by advanced devices, such as Logitech
@@ -404,7 +394,6 @@ int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
 	return 0;
 }
 
-
 /*
  * psmouse_reset() resets the mouse into power-on state.
  */
@@ -424,7 +413,6 @@ int psmouse_reset(struct psmouse *psmouse)
 /*
  * Here we set the mouse resolution.
  */
-
 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
 {
 	static const unsigned char params[] = { 0, 1, 2, 2, 3 };
@@ -441,7 +429,6 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
 /*
  * Here we set the mouse report rate.
  */
-
 static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
 {
 	static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
@@ -457,7 +444,6 @@ static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
 /*
  * Here we set the mouse scaling.
  */
-
 static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
 {
 	ps2_command(&psmouse->ps2dev, NULL,
@@ -468,7 +454,6 @@ static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
 /*
  * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
  */
-
 static int psmouse_poll(struct psmouse *psmouse)
 {
 	return ps2_command(&psmouse->ps2dev, psmouse->packet,
@@ -602,7 +587,7 @@ static int im_explorer_detect(struct psmouse *psmouse, bool set_properties)
 	if (param[0] != 4)
 		return -1;
 
-/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
+	/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
 	param[0] = 200;
 	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
 	param[0] =  80;
@@ -672,10 +657,10 @@ static int ps2bare_detect(struct psmouse *psmouse, bool set_properties)
 		if (!psmouse->name)
 			psmouse->name = "Mouse";
 
-/*
- * We have no way of figuring true number of buttons so let's
- * assume that the device has 3.
- */
+		/*
+		 * We have no way of figuring true number of buttons so let's
+		 * assume that the device has 3.
+		 */
 		__set_bit(BTN_MIDDLE, psmouse->dev->keybit);
 	}
 
@@ -699,284 +684,6 @@ static int cortron_detect(struct psmouse *psmouse, bool set_properties)
 	return 0;
 }
 
-/*
- * Apply default settings to the psmouse structure. Most of them will
- * be overridden by individual protocol initialization routines.
- */
-
-static void psmouse_apply_defaults(struct psmouse *psmouse)
-{
-	struct input_dev *input_dev = psmouse->dev;
-
-	memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
-	memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
-	memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
-	memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
-	memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
-
-	__set_bit(EV_KEY, input_dev->evbit);
-	__set_bit(EV_REL, input_dev->evbit);
-
-	__set_bit(BTN_LEFT, input_dev->keybit);
-	__set_bit(BTN_RIGHT, input_dev->keybit);
-
-	__set_bit(REL_X, input_dev->relbit);
-	__set_bit(REL_Y, input_dev->relbit);
-
-	__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
-
-	psmouse->set_rate = psmouse_set_rate;
-	psmouse->set_resolution = psmouse_set_resolution;
-	psmouse->set_scale = psmouse_set_scale;
-	psmouse->poll = psmouse_poll;
-	psmouse->protocol_handler = psmouse_process_byte;
-	psmouse->pktsize = 3;
-	psmouse->reconnect = NULL;
-	psmouse->disconnect = NULL;
-	psmouse->cleanup = NULL;
-	psmouse->pt_activate = NULL;
-	psmouse->pt_deactivate = NULL;
-}
-
-/*
- * Apply default settings to the psmouse structure and call specified
- * protocol detection or initialization routine.
- */
-static int psmouse_do_detect(int (*detect)(struct psmouse *psmouse,
-					   bool set_properties),
-			     struct psmouse *psmouse, bool set_properties)
-{
-	if (set_properties)
-		psmouse_apply_defaults(psmouse);
-
-	return detect(psmouse, set_properties);
-}
-
-/*
- * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
- * the mouse may have.
- */
-
-static int psmouse_extensions(struct psmouse *psmouse,
-			      unsigned int max_proto, bool set_properties)
-{
-	bool synaptics_hardware = false;
-
-/* Always check for focaltech, this is safe as it uses pnp-id matching */
-	if (psmouse_do_detect(focaltech_detect, psmouse, set_properties) == 0) {
-		if (max_proto > PSMOUSE_IMEX) {
-			if (!set_properties || focaltech_init(psmouse) == 0) {
-				if (IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH))
-					return PSMOUSE_FOCALTECH;
-				/*
-				 * Note that we need to also restrict
-				 * psmouse_max_proto so that psmouse_initialize()
-				 * does not try to reset rate and resolution,
-				 * because even that upsets the device.
-				 */
-				psmouse_max_proto = PSMOUSE_PS2;
-				return PSMOUSE_PS2;
-			}
-		}
-	}
-
-/*
- * We always check for lifebook because it does not disturb mouse
- * (it only checks DMI information).
- */
-	if (psmouse_do_detect(lifebook_detect, psmouse, set_properties) == 0) {
-		if (max_proto > PSMOUSE_IMEX) {
-			if (!set_properties || lifebook_init(psmouse) == 0)
-				return PSMOUSE_LIFEBOOK;
-		}
-	}
-
-	if (psmouse_do_detect(vmmouse_detect, psmouse, set_properties) == 0) {
-		if (max_proto > PSMOUSE_IMEX) {
-			if (!set_properties || vmmouse_init(psmouse) == 0)
-				return PSMOUSE_VMMOUSE;
-		}
-	}
-
-/*
- * Try Kensington ThinkingMouse (we try first, because synaptics probe
- * upsets the thinkingmouse).
- */
-
-	if (max_proto > PSMOUSE_IMEX &&
-	    psmouse_do_detect(thinking_detect, psmouse, set_properties) == 0) {
-		return PSMOUSE_THINKPS;
-	}
-
-/*
- * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
- * support is disabled in config - we need to know if it is synaptics so we
- * can reset it properly after probing for intellimouse.
- */
-	if (max_proto > PSMOUSE_PS2 &&
-	    psmouse_do_detect(synaptics_detect, psmouse, set_properties) == 0) {
-		synaptics_hardware = true;
-
-		if (max_proto > PSMOUSE_IMEX) {
-/*
- * Try activating protocol, but check if support is enabled first, since
- * we try detecting Synaptics even when protocol is disabled.
- */
-			if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) &&
-			    (!set_properties || synaptics_init(psmouse) == 0)) {
-				return PSMOUSE_SYNAPTICS;
-			}
-
-/*
- * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
- * Unfortunately Logitech/Genius probes confuse some firmware versions so
- * we'll have to skip them.
- */
-			max_proto = PSMOUSE_IMEX;
-		}
-/*
- * Make sure that touchpad is in relative mode, gestures (taps) are enabled
- */
-		synaptics_reset(psmouse);
-	}
-
-/*
- * Try Cypress Trackpad.
- * Must try it before Finger Sensing Pad because Finger Sensing Pad probe
- * upsets some modules of Cypress Trackpads.
- */
-	if (max_proto > PSMOUSE_IMEX &&
-			cypress_detect(psmouse, set_properties) == 0) {
-		if (IS_ENABLED(CONFIG_MOUSE_PS2_CYPRESS)) {
-			if (cypress_init(psmouse) == 0)
-				return PSMOUSE_CYPRESS;
-
-			/*
-			 * Finger Sensing Pad probe upsets some modules of
-			 * Cypress Trackpad, must avoid Finger Sensing Pad
-			 * probe if Cypress Trackpad device detected.
-			 */
-			return PSMOUSE_PS2;
-		}
-
-		max_proto = PSMOUSE_IMEX;
-	}
-
-/*
- * Try ALPS TouchPad
- */
-	if (max_proto > PSMOUSE_IMEX) {
-		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
-		if (psmouse_do_detect(alps_detect,
-				      psmouse, set_properties) == 0) {
-			if (!set_properties || alps_init(psmouse) == 0)
-				return PSMOUSE_ALPS;
-/*
- * Init failed, try basic relative protocols
- */
-			max_proto = PSMOUSE_IMEX;
-		}
-	}
-
-/*
- * Try OLPC HGPK touchpad.
- */
-	if (max_proto > PSMOUSE_IMEX &&
-	    psmouse_do_detect(hgpk_detect, psmouse, set_properties) == 0) {
-		if (!set_properties || hgpk_init(psmouse) == 0)
-			return PSMOUSE_HGPK;
-/*
- * Init failed, try basic relative protocols
- */
-		max_proto = PSMOUSE_IMEX;
-	}
-
-/*
- * Try Elantech touchpad.
- */
-	if (max_proto > PSMOUSE_IMEX &&
-	    psmouse_do_detect(elantech_detect, psmouse, set_properties) == 0) {
-		if (!set_properties || elantech_init(psmouse) == 0)
-			return PSMOUSE_ELANTECH;
-/*
- * Init failed, try basic relative protocols
- */
-		max_proto = PSMOUSE_IMEX;
-	}
-
-	if (max_proto > PSMOUSE_IMEX) {
-		if (psmouse_do_detect(genius_detect,
-				      psmouse, set_properties) == 0)
-			return PSMOUSE_GENPS;
-
-		if (psmouse_do_detect(ps2pp_init,
-				      psmouse, set_properties) == 0)
-			return PSMOUSE_PS2PP;
-
-		if (psmouse_do_detect(trackpoint_detect,
-				      psmouse, set_properties) == 0)
-			return PSMOUSE_TRACKPOINT;
-
-		if (psmouse_do_detect(touchkit_ps2_detect,
-				      psmouse, set_properties) == 0)
-			return PSMOUSE_TOUCHKIT_PS2;
-	}
-
-/*
- * Try Finger Sensing Pad. We do it here because its probe upsets
- * Trackpoint devices (causing TP_READ_ID command to time out).
- */
-	if (max_proto > PSMOUSE_IMEX) {
-		if (psmouse_do_detect(fsp_detect,
-				      psmouse, set_properties) == 0) {
-			if (!set_properties || fsp_init(psmouse) == 0)
-				return PSMOUSE_FSP;
-/*
- * Init failed, try basic relative protocols
- */
-			max_proto = PSMOUSE_IMEX;
-		}
-	}
-
-/*
- * Reset to defaults in case the device got confused by extended
- * protocol probes. Note that we follow up with full reset because
- * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
- */
-	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
-	psmouse_reset(psmouse);
-
-	if (max_proto >= PSMOUSE_IMEX &&
-	    psmouse_do_detect(im_explorer_detect,
-			      psmouse, set_properties) == 0) {
-		return PSMOUSE_IMEX;
-	}
-
-	if (max_proto >= PSMOUSE_IMPS &&
-	    psmouse_do_detect(intellimouse_detect,
-			      psmouse, set_properties) == 0) {
-		return PSMOUSE_IMPS;
-	}
-
-/*
- * Okay, all failed, we have a standard mouse here. The number of the buttons
- * is still a question, though. We assume 3.
- */
-	psmouse_do_detect(ps2bare_detect, psmouse, set_properties);
-
-	if (synaptics_hardware) {
-/*
- * We detected Synaptics hardware but it did not respond to IMPS/2 probes.
- * We need to reset the touchpad because if there is a track point on the
- * pass through port it could get disabled while probing for protocol
- * extensions.
- */
-		psmouse_reset(psmouse);
-	}
-
-	return PSMOUSE_PS2;
-}
-
 static const struct psmouse_protocol psmouse_protocols[] = {
 	{
 		.type		= PSMOUSE_PS2,
@@ -985,13 +692,14 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.maxproto	= true,
 		.ignore_parity	= true,
 		.detect		= ps2bare_detect,
+		.try_passthru	= true,
 	},
 #ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
 	{
 		.type		= PSMOUSE_PS2PP,
 		.name		= "PS2++",
 		.alias		= "logitech",
-		.detect		= ps2pp_init,
+		.detect		= ps2pp_detect,
 	},
 #endif
 	{
@@ -1022,6 +730,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.maxproto	= true,
 		.ignore_parity	= true,
 		.detect		= intellimouse_detect,
+		.try_passthru	= true,
 	},
 	{
 		.type		= PSMOUSE_IMEX,
@@ -1030,6 +739,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.maxproto	= true,
 		.ignore_parity	= true,
 		.detect		= im_explorer_detect,
+		.try_passthru	= true,
 	},
 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
 	{
@@ -1061,6 +771,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.type		= PSMOUSE_LIFEBOOK,
 		.name		= "LBPS/2",
 		.alias		= "lifebook",
+		.detect		= lifebook_detect,
 		.init		= lifebook_init,
 	},
 #endif
@@ -1070,6 +781,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.name		= "TPPS/2",
 		.alias		= "trackpoint",
 		.detect		= trackpoint_detect,
+		.try_passthru	= true,
 	},
 #endif
 #ifdef CONFIG_MOUSE_PS2_TOUCHKIT
@@ -1138,7 +850,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 	},
 };
 
-static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+static const struct psmouse_protocol *__psmouse_protocol_by_type(enum psmouse_type type)
 {
 	int i;
 
@@ -1146,6 +858,17 @@ static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type
 		if (psmouse_protocols[i].type == type)
 			return &psmouse_protocols[i];
 
+	return NULL;
+}
+
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+{
+	const struct psmouse_protocol *proto;
+
+	proto = __psmouse_protocol_by_type(type);
+	if (proto)
+		return proto;
+
 	WARN_ON(1);
 	return &psmouse_protocols[0];
 }
@@ -1166,23 +889,288 @@ static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name,
 	return NULL;
 }
 
+/*
+ * Apply default settings to the psmouse structure. Most of them will
+ * be overridden by individual protocol initialization routines.
+ */
+static void psmouse_apply_defaults(struct psmouse *psmouse)
+{
+	struct input_dev *input_dev = psmouse->dev;
+
+	memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
+	memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
+	memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
+	memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
+	memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
+
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(EV_REL, input_dev->evbit);
+
+	__set_bit(BTN_LEFT, input_dev->keybit);
+	__set_bit(BTN_RIGHT, input_dev->keybit);
+
+	__set_bit(REL_X, input_dev->relbit);
+	__set_bit(REL_Y, input_dev->relbit);
+
+	__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+	psmouse->set_rate = psmouse_set_rate;
+	psmouse->set_resolution = psmouse_set_resolution;
+	psmouse->set_scale = psmouse_set_scale;
+	psmouse->poll = psmouse_poll;
+	psmouse->protocol_handler = psmouse_process_byte;
+	psmouse->pktsize = 3;
+	psmouse->reconnect = NULL;
+	psmouse->disconnect = NULL;
+	psmouse->cleanup = NULL;
+	psmouse->pt_activate = NULL;
+	psmouse->pt_deactivate = NULL;
+}
+
+static bool psmouse_try_protocol(struct psmouse *psmouse,
+				 enum psmouse_type type,
+				 unsigned int *max_proto,
+				 bool set_properties, bool init_allowed)
+{
+	const struct psmouse_protocol *proto;
+
+	proto = __psmouse_protocol_by_type(type);
+	if (!proto)
+		return false;
+
+	if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU &&
+	    !proto->try_passthru) {
+		return false;
+	}
+
+	if (set_properties)
+		psmouse_apply_defaults(psmouse);
+
+	if (proto->detect(psmouse, set_properties) != 0)
+		return false;
+
+	if (set_properties && proto->init && init_allowed) {
+		if (proto->init(psmouse) != 0) {
+			/*
+			 * We detected device, but init failed. Adjust
+			 * max_proto so we only try standard protocols.
+			 */
+			if (*max_proto > PSMOUSE_IMEX)
+				*max_proto = PSMOUSE_IMEX;
+
+			return false;
+		}
+	}
+
+	return true;
+}
 
 /*
- * psmouse_probe() probes for a PS/2 mouse.
+ * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
+ * the mouse may have.
  */
+static int psmouse_extensions(struct psmouse *psmouse,
+			      unsigned int max_proto, bool set_properties)
+{
+	bool synaptics_hardware = false;
+
+	/*
+	 * Always check for focaltech, this is safe as it uses pnp-id
+	 * matching.
+	 */
+	if (psmouse_try_protocol(psmouse, PSMOUSE_FOCALTECH,
+				 &max_proto, set_properties, false)) {
+		if (max_proto > PSMOUSE_IMEX &&
+		    IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) &&
+		    (!set_properties || focaltech_init(psmouse) == 0)) {
+			return PSMOUSE_FOCALTECH;
+		}
+		/*
+		 * Restrict psmouse_max_proto so that psmouse_initialize()
+		 * does not try to reset rate and resolution, because even
+		 * that upsets the device.
+		 * This also causes us to basically fall through to basic
+		 * protocol detection, where we fully reset the mouse,
+		 * and set it up as bare PS/2 protocol device.
+		 */
+		psmouse_max_proto = max_proto = PSMOUSE_PS2;
+	}
+
+	/*
+	 * We always check for LifeBook because it does not disturb mouse
+	 * (it only checks DMI information).
+	 */
+	if (psmouse_try_protocol(psmouse, PSMOUSE_LIFEBOOK, &max_proto,
+				 set_properties, max_proto > PSMOUSE_IMEX))
+		return PSMOUSE_LIFEBOOK;
 
+	if (psmouse_try_protocol(psmouse, PSMOUSE_VMMOUSE, &max_proto,
+				 set_properties, max_proto > PSMOUSE_IMEX))
+		return PSMOUSE_VMMOUSE;
+
+	/*
+	 * Try Kensington ThinkingMouse (we try first, because Synaptics
+	 * probe upsets the ThinkingMouse).
+	 */
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_THINKPS, &max_proto,
+				 set_properties, true)) {
+		return PSMOUSE_THINKPS;
+	}
+
+	/*
+	 * Try Synaptics TouchPad. Note that probing is done even if
+	 * Synaptics protocol support is disabled in config - we need to
+	 * know if it is Synaptics so we can reset it properly after
+	 * probing for IntelliMouse.
+	 */
+	if (max_proto > PSMOUSE_PS2 &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_SYNAPTICS, &max_proto,
+				 set_properties, false)) {
+		synaptics_hardware = true;
+
+		if (max_proto > PSMOUSE_IMEX) {
+			/*
+			 * Try activating protocol, but check if support is
+			 * enabled first, since we try detecting Synaptics
+			 * even when protocol is disabled.
+			 */
+			if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) &&
+			    (!set_properties || synaptics_init(psmouse) == 0)) {
+				return PSMOUSE_SYNAPTICS;
+			}
+
+			/*
+			 * Some Synaptics touchpads can emulate extended
+			 * protocols (like IMPS/2).  Unfortunately
+			 * Logitech/Genius probes confuse some firmware
+			 * versions so we'll have to skip them.
+			 */
+			max_proto = PSMOUSE_IMEX;
+		}
+
+		/*
+		 * Make sure that touchpad is in relative mode, gestures
+		 * (taps) are enabled.
+		 */
+		synaptics_reset(psmouse);
+	}
+
+	/*
+	 * Try Cypress Trackpad. We must try it before Finger Sensing Pad
+	 * because Finger Sensing Pad probe upsets some modules of Cypress
+	 * Trackpads.
+	 */
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_CYPRESS, &max_proto,
+				 set_properties, true)) {
+		return PSMOUSE_CYPRESS;
+	}
+
+	/* Try ALPS TouchPad */
+	if (max_proto > PSMOUSE_IMEX) {
+		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+		if (psmouse_try_protocol(psmouse, PSMOUSE_ALPS,
+					 &max_proto, set_properties, true))
+			return PSMOUSE_ALPS;
+	}
+
+	/* Try OLPC HGPK touchpad */
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_HGPK, &max_proto,
+				 set_properties, true)) {
+		return PSMOUSE_HGPK;
+	}
+
+	/* Try Elantech touchpad */
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_ELANTECH,
+				 &max_proto, set_properties, true)) {
+		return PSMOUSE_ELANTECH;
+	}
+
+	if (max_proto > PSMOUSE_IMEX) {
+		if (psmouse_try_protocol(psmouse, PSMOUSE_GENPS,
+					 &max_proto, set_properties, true))
+			return PSMOUSE_GENPS;
+
+		if (psmouse_try_protocol(psmouse, PSMOUSE_PS2PP,
+					 &max_proto, set_properties, true))
+			return PSMOUSE_PS2PP;
+
+		if (psmouse_try_protocol(psmouse, PSMOUSE_TRACKPOINT,
+					 &max_proto, set_properties, true))
+			return PSMOUSE_TRACKPOINT;
+
+		if (psmouse_try_protocol(psmouse, PSMOUSE_TOUCHKIT_PS2,
+					 &max_proto, set_properties, true))
+			return PSMOUSE_TOUCHKIT_PS2;
+	}
+
+	/*
+	 * Try Finger Sensing Pad. We do it here because its probe upsets
+	 * Trackpoint devices (causing TP_READ_ID command to time out).
+	 */
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_FSP,
+				 &max_proto, set_properties, true)) {
+		return PSMOUSE_FSP;
+	}
+
+	/*
+	 * Reset to defaults in case the device got confused by extended
+	 * protocol probes. Note that we follow up with full reset because
+	 * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
+	 */
+	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+	psmouse_reset(psmouse);
+
+	if (max_proto >= PSMOUSE_IMEX &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_IMEX,
+				 &max_proto, set_properties, true)) {
+		return PSMOUSE_IMEX;
+	}
+
+	if (max_proto >= PSMOUSE_IMPS &&
+	    psmouse_try_protocol(psmouse, PSMOUSE_IMPS,
+				 &max_proto, set_properties, true)) {
+		return PSMOUSE_IMPS;
+	}
+
+	/*
+	 * Okay, all failed, we have a standard mouse here. The number of
+	 * the buttons is still a question, though. We assume 3.
+	 */
+	psmouse_try_protocol(psmouse, PSMOUSE_PS2,
+			     &max_proto, set_properties, true);
+
+	if (synaptics_hardware) {
+		/*
+		 * We detected Synaptics hardware but it did not respond to
+		 * IMPS/2 probes.  We need to reset the touchpad because if
+		 * there is a track point on the pass through port it could
+		 * get disabled while probing for protocol extensions.
+		 */
+		psmouse_reset(psmouse);
+	}
+
+	return PSMOUSE_PS2;
+}
+
+/*
+ * psmouse_probe() probes for a PS/2 mouse.
+ */
 static int psmouse_probe(struct psmouse *psmouse)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	unsigned char param[2];
 
-/*
- * First, we check if it's a mouse. It should send 0x00 or 0x03
- * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
- * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
- * ID queries, probably due to a firmware bug.
- */
-
+	/*
+	 * First, we check if it's a mouse. It should send 0x00 or 0x03 in
+	 * case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
+	 * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and
+	 * subsequent ID queries, probably due to a firmware bug.
+	 */
 	param[0] = 0xa5;
 	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
 		return -1;
@@ -1191,10 +1179,10 @@ static int psmouse_probe(struct psmouse *psmouse)
 	    param[0] != 0x04 && param[0] != 0xff)
 		return -1;
 
-/*
- * Then we reset and disable the mouse so that it doesn't generate events.
- */
-
+	/*
+	 * Then we reset and disable the mouse so that it doesn't generate
+	 * events.
+	 */
 	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
 		psmouse_warn(psmouse, "Failed to reset mouse on %s\n",
 			     ps2dev->serio->phys);
@@ -1205,13 +1193,11 @@ static int psmouse_probe(struct psmouse *psmouse)
 /*
  * psmouse_initialize() initializes the mouse to a sane state.
  */
-
 static void psmouse_initialize(struct psmouse *psmouse)
 {
-/*
- * We set the mouse report rate, resolution and scaling.
- */
-
+	/*
+	 * We set the mouse report rate, resolution and scaling.
+	 */
 	if (psmouse_max_proto != PSMOUSE_PS2) {
 		psmouse->set_rate(psmouse, psmouse->rate);
 		psmouse->set_resolution(psmouse, psmouse->resolution);
@@ -1222,7 +1208,6 @@ static void psmouse_initialize(struct psmouse *psmouse)
 /*
  * psmouse_activate() enables the mouse so that we get motion reports from it.
  */
-
 int psmouse_activate(struct psmouse *psmouse)
 {
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
@@ -1236,10 +1221,9 @@ int psmouse_activate(struct psmouse *psmouse)
 }
 
 /*
- * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
- * reports from it unless we explicitly request it.
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get
+ * motion reports from it unless we explicitly request it.
  */
-
 int psmouse_deactivate(struct psmouse *psmouse)
 {
 	if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) {
@@ -1252,11 +1236,9 @@ int psmouse_deactivate(struct psmouse *psmouse)
 	return 0;
 }
 
-
 /*
  * psmouse_resync() attempts to re-validate current protocol.
  */
-
 static void psmouse_resync(struct work_struct *work)
 {
 	struct psmouse *parent = NULL, *psmouse =
@@ -1276,16 +1258,16 @@ static void psmouse_resync(struct work_struct *work)
 		psmouse_deactivate(parent);
 	}
 
-/*
- * Some mice don't ACK commands sent while they are in the middle of
- * transmitting motion packet. To avoid delay we use ps2_sendbyte()
- * instead of ps2_command() which would wait for 200ms for an ACK
- * that may never come.
- * As an additional quirk ALPS touchpads may not only forget to ACK
- * disable command but will stop reporting taps, so if we see that
- * mouse at least once ACKs disable we will do full reconnect if ACK
- * is missing.
- */
+	/*
+	 * Some mice don't ACK commands sent while they are in the middle of
+	 * transmitting motion packet. To avoid delay we use ps2_sendbyte()
+	 * instead of ps2_command() which would wait for 200ms for an ACK
+	 * that may never come.
+	 * As an additional quirk ALPS touchpads may not only forget to ACK
+	 * disable command but will stop reporting taps, so if we see that
+	 * mouse at least once ACKs disable we will do full reconnect if ACK
+	 * is missing.
+	 */
 	psmouse->num_resyncs++;
 
 	if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
@@ -1294,13 +1276,13 @@ static void psmouse_resync(struct work_struct *work)
 	} else
 		psmouse->acks_disable_command = true;
 
-/*
- * Poll the mouse. If it was reset the packet will be shorter than
- * psmouse->pktsize and ps2_command will fail. We do not expect and
- * do not handle scenario when mouse "upgrades" its protocol while
- * disconnected since it would require additional delay. If we ever
- * see a mouse that does it we'll adjust the code.
- */
+	/*
+	 * Poll the mouse. If it was reset the packet will be shorter than
+	 * psmouse->pktsize and ps2_command will fail. We do not expect and
+	 * do not handle scenario when mouse "upgrades" its protocol while
+	 * disconnected since it would require additional delay. If we ever
+	 * see a mouse that does it we'll adjust the code.
+	 */
 	if (!failed) {
 		if (psmouse->poll(psmouse))
 			failed = true;
@@ -1317,11 +1299,12 @@ static void psmouse_resync(struct work_struct *work)
 			psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
 		}
 	}
-/*
- * Now try to enable mouse. We try to do that even if poll failed and also
- * repeat our attempts 5 times, otherwise we may be left out with disabled
- * mouse.
- */
+
+	/*
+	 * Now try to enable mouse. We try to do that even if poll failed
+	 * and also repeat our attempts 5 times, otherwise we may be left
+	 * out with disabled mouse.
+	 */
 	for (i = 0; i < 5; i++) {
 		if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
 			enabled = true;
@@ -1353,7 +1336,6 @@ static void psmouse_resync(struct work_struct *work)
 /*
  * psmouse_cleanup() resets the mouse into power-on state.
  */
-
 static void psmouse_cleanup(struct serio *serio)
 {
 	struct psmouse *psmouse = serio_get_drvdata(serio);
@@ -1378,15 +1360,15 @@ static void psmouse_cleanup(struct serio *serio)
 	if (psmouse->cleanup)
 		psmouse->cleanup(psmouse);
 
-/*
- * Reset the mouse to defaults (bare PS/2 protocol).
- */
+	/*
+	 * Reset the mouse to defaults (bare PS/2 protocol).
+	 */
 	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
 
-/*
- * Some boxes, such as HP nx7400, get terribly confused if mouse
- * is not fully enabled before suspending/shutting down.
- */
+	/*
+	 * Some boxes, such as HP nx7400, get terribly confused if mouse
+	 * is not fully enabled before suspending/shutting down.
+	 */
 	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
 
 	if (parent) {
@@ -1402,7 +1384,6 @@ static void psmouse_cleanup(struct serio *serio)
 /*
  * psmouse_disconnect() closes and frees.
  */
-
 static void psmouse_disconnect(struct serio *serio)
 {
 	struct psmouse *psmouse, *parent = NULL;
@@ -1602,7 +1583,6 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
 	goto out;
 }
 
-
 static int psmouse_reconnect(struct serio *serio)
 {
 	struct psmouse *psmouse = serio_get_drvdata(serio);
diff --git a/drivers/input/serio/hyperv-keyboard.c b/drivers/input/serio/hyperv-keyboard.c
index e74e5d6e5f9f..c948866edf87 100644
--- a/drivers/input/serio/hyperv-keyboard.c
+++ b/drivers/input/serio/hyperv-keyboard.c
@@ -412,16 +412,6 @@ static int hv_kbd_remove(struct hv_device *hv_dev)
 	return 0;
 }
 
-/*
- * Keyboard GUID
- * {f912ad6d-2b17-48ea-bd65-f927a61c7684}
- */
-#define HV_KBD_GUID \
-	.guid = { \
-			0x6d, 0xad, 0x12, 0xf9, 0x17, 0x2b, 0xea, 0x48, \
-			0xbd, 0x65, 0xf9, 0x27, 0xa6, 0x1c, 0x76, 0x84 \
-	}
-
 static const struct hv_vmbus_device_id id_table[] = {
 	/* Keyboard guid */
 	{ HV_KBD_GUID, },
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index c11556563ef0..68f5f4a0f1e7 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -258,6 +258,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 		},
 	},
 	{
+		/* Fujitsu Lifebook U745 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
+		},
+	},
+	{
 		/* Fujitsu T70H */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index ae33da7ab51f..53a97b379c9f 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -295,6 +295,16 @@ config TOUCHSCREEN_EGALAX
 	  To compile this driver as a module, choose M here: the
 	  module will be called egalax_ts.
 
+config TOUCHSCREEN_EGALAX_SERIAL
+	tristate "EETI eGalax serial touchscreen"
+	select SERIO
+	help
+	  Say Y here to enable support for serial connected EETI
+	  eGalax touch panels.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called egalax_ts_serial.
+
 config TOUCHSCREEN_FT6236
 	tristate "FT6236 I2C touchscreen"
 	depends on I2C
@@ -324,6 +334,7 @@ config TOUCHSCREEN_FUJITSU
 config TOUCHSCREEN_GOODIX
 	tristate "Goodix I2C touchscreen"
 	depends on I2C
+	depends on GPIOLIB
 	help
 	  Say Y here if you have the Goodix touchscreen (such as one
 	  installed in Onda v975w tablets) connected to your
@@ -927,6 +938,22 @@ config TOUCHSCREEN_TOUCHIT213
 	  To compile this driver as a module, choose M here: the
 	  module will be called touchit213.
 
+config TOUCHSCREEN_TS4800
+	tristate "TS-4800 touchscreen"
+	depends on HAS_IOMEM && OF
+	select MFD_SYSCON
+	select INPUT_POLLDEV
+	help
+	  Say Y here if you have a touchscreen on a TS-4800 board.
+
+	  On TS-4800, the touchscreen is not handled directly by Linux but by
+	  a companion FPGA.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ts4800_ts.
+
 config TOUCHSCREEN_TSC_SERIO
 	tristate "TSC-10/25/40 serial touchscreen support"
 	select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index cbaa6abb08da..968ff12e3132 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_TOUCHSCREEN_EETI)		+= eeti_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ELAN)		+= elants_i2c.o
 obj-$(CONFIG_TOUCHSCREEN_ELO)		+= elo.o
 obj-$(CONFIG_TOUCHSCREEN_EGALAX)	+= egalax_ts.o
+obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL)	+= egalax_ts_serial.o
 obj-$(CONFIG_TOUCHSCREEN_FT6236)	+= ft6236.o
 obj-$(CONFIG_TOUCHSCREEN_FUJITSU)	+= fujitsu_ts.o
 obj-$(CONFIG_TOUCHSCREEN_GOODIX)	+= goodix.o
@@ -68,6 +69,7 @@ obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC)	+= ti_am335x_tsc.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT)	+= touchright.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN)	+= touchwin.o
+obj-$(CONFIG_TOUCHSCREEN_TS4800)	+= ts4800-ts.o
 obj-$(CONFIG_TOUCHSCREEN_TSC_SERIO)	+= tsc40.o
 obj-$(CONFIG_TOUCHSCREEN_TSC200X_CORE)	+= tsc200x-core.o
 obj-$(CONFIG_TOUCHSCREEN_TSC2004)	+= tsc2004.o
diff --git a/drivers/input/touchscreen/egalax_ts_serial.c b/drivers/input/touchscreen/egalax_ts_serial.c
new file mode 100644
index 000000000000..657bbae608c8
--- /dev/null
+++ b/drivers/input/touchscreen/egalax_ts_serial.c
@@ -0,0 +1,194 @@
+/*
+ * EETI Egalax serial touchscreen driver
+ *
+ * Copyright (c) 2015 Zoltán Böszörményi <zboszor@pr.hu>
+ *
+ * based on the
+ *
+ * Hampshire serial touchscreen driver (Copyright (c) 2010 Adam Bennett)
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"EETI Egalax serial touchscreen driver"
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define EGALAX_FORMAT_MAX_LENGTH	6
+#define EGALAX_FORMAT_START_BIT		BIT(7)
+#define EGALAX_FORMAT_PRESSURE_BIT	BIT(6)
+#define EGALAX_FORMAT_TOUCH_BIT		BIT(0)
+#define EGALAX_FORMAT_RESOLUTION_MASK	0x06
+
+#define EGALAX_MIN_XC			0
+#define EGALAX_MAX_XC			0x4000
+#define EGALAX_MIN_YC			0
+#define EGALAX_MAX_YC			0x4000
+
+/*
+ * Per-touchscreen data.
+ */
+struct egalax {
+	struct input_dev *input;
+	struct serio *serio;
+	int idx;
+	u8 data[EGALAX_FORMAT_MAX_LENGTH];
+	char phys[32];
+};
+
+static void egalax_process_data(struct egalax *egalax)
+{
+	struct input_dev *dev = egalax->input;
+	u8 *data = egalax->data;
+	u16 x, y;
+	u8 shift;
+	u8 mask;
+
+	shift = 3 - ((data[0] & EGALAX_FORMAT_RESOLUTION_MASK) >> 1);
+	mask = 0xff >> (shift + 1);
+
+	x = (((u16)(data[1] & mask) << 7) | (data[2] & 0x7f)) << shift;
+	y = (((u16)(data[3] & mask) << 7) | (data[4] & 0x7f)) << shift;
+
+	input_report_key(dev, BTN_TOUCH, data[0] & EGALAX_FORMAT_TOUCH_BIT);
+	input_report_abs(dev, ABS_X, x);
+	input_report_abs(dev, ABS_Y, y);
+	input_sync(dev);
+}
+
+static irqreturn_t egalax_interrupt(struct serio *serio,
+				    unsigned char data, unsigned int flags)
+{
+	struct egalax *egalax = serio_get_drvdata(serio);
+	int pkt_len;
+
+	egalax->data[egalax->idx++] = data;
+
+	if (likely(egalax->data[0] & EGALAX_FORMAT_START_BIT)) {
+		pkt_len = egalax->data[0] & EGALAX_FORMAT_PRESSURE_BIT ? 6 : 5;
+		if (pkt_len == egalax->idx) {
+			egalax_process_data(egalax);
+			egalax->idx = 0;
+		}
+	} else {
+		dev_dbg(&serio->dev, "unknown/unsynchronized data: %x\n",
+			egalax->data[0]);
+		egalax->idx = 0;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * egalax_connect() is the routine that is called when someone adds a
+ * new serio device that supports egalax protocol and registers it as
+ * an input device. This is usually accomplished using inputattach.
+ */
+static int egalax_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct egalax *egalax;
+	struct input_dev *input_dev;
+	int error;
+
+	egalax = kzalloc(sizeof(struct egalax), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!egalax || !input_dev) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	egalax->serio = serio;
+	egalax->input = input_dev;
+	snprintf(egalax->phys, sizeof(egalax->phys),
+		 "%s/input0", serio->phys);
+
+	input_dev->name = "EETI eGalaxTouch Serial TouchScreen";
+	input_dev->phys = egalax->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_EGALAX;
+	input_dev->id.product = 0;
+	input_dev->id.version = 0x0001;
+	input_dev->dev.parent = &serio->dev;
+
+	input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
+	input_set_abs_params(input_dev, ABS_X,
+			     EGALAX_MIN_XC, EGALAX_MAX_XC, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y,
+			     EGALAX_MIN_YC, EGALAX_MAX_YC, 0, 0);
+
+	serio_set_drvdata(serio, egalax);
+
+	error = serio_open(serio, drv);
+	if (error)
+		goto err_reset_drvdata;
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_close_serio;
+
+	return 0;
+
+err_close_serio:
+	serio_close(serio);
+err_reset_drvdata:
+	serio_set_drvdata(serio, NULL);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(egalax);
+	return error;
+}
+
+static void egalax_disconnect(struct serio *serio)
+{
+	struct egalax *egalax = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(egalax->input);
+	kfree(egalax);
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id egalax_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_EGALAX,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, egalax_serio_ids);
+
+static struct serio_driver egalax_drv = {
+	.driver		= {
+		.name	= "egalax",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= egalax_serio_ids,
+	.interrupt	= egalax_interrupt,
+	.connect	= egalax_connect,
+	.disconnect	= egalax_disconnect,
+};
+module_serio_driver(egalax_drv);
+
+MODULE_AUTHOR("Zoltán Böszörményi <zboszor@pr.hu>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 4d113c9e4b77..240b16f3ee97 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -2,6 +2,7 @@
  *  Driver for Goodix Touchscreens
  *
  *  Copyright (c) 2014 Red Hat Inc.
+ *  Copyright (c) 2015 K. Merker <merker@debian.org>
  *
  *  This code is based on gt9xx.c authored by andrew@goodix.com:
  *
@@ -16,6 +17,8 @@
 
 #include <linux/kernel.h>
 #include <linux/dmi.h>
+#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/input/mt.h>
@@ -33,11 +36,24 @@ struct goodix_ts_data {
 	struct input_dev *input_dev;
 	int abs_x_max;
 	int abs_y_max;
+	bool swapped_x_y;
+	bool inverted_x;
+	bool inverted_y;
 	unsigned int max_touch_num;
 	unsigned int int_trigger_type;
-	bool rotated_screen;
+	int cfg_len;
+	struct gpio_desc *gpiod_int;
+	struct gpio_desc *gpiod_rst;
+	u16 id;
+	u16 version;
+	const char *cfg_name;
+	struct completion firmware_loading_complete;
+	unsigned long irq_flags;
 };
 
+#define GOODIX_GPIO_INT_NAME		"irq"
+#define GOODIX_GPIO_RST_NAME		"reset"
+
 #define GOODIX_MAX_HEIGHT		4096
 #define GOODIX_MAX_WIDTH		4096
 #define GOODIX_INT_TRIGGER		1
@@ -45,8 +61,13 @@ struct goodix_ts_data {
 #define GOODIX_MAX_CONTACTS		10
 
 #define GOODIX_CONFIG_MAX_LENGTH	240
+#define GOODIX_CONFIG_911_LENGTH	186
+#define GOODIX_CONFIG_967_LENGTH	228
 
 /* Register defines */
+#define GOODIX_REG_COMMAND		0x8040
+#define GOODIX_CMD_SCREEN_OFF		0x05
+
 #define GOODIX_READ_COOR_ADDR		0x814E
 #define GOODIX_REG_CONFIG_DATA		0x8047
 #define GOODIX_REG_ID			0x8140
@@ -115,6 +136,63 @@ static int goodix_i2c_read(struct i2c_client *client,
 	return ret < 0 ? ret : (ret != ARRAY_SIZE(msgs) ? -EIO : 0);
 }
 
+/**
+ * goodix_i2c_write - write data to a register of the i2c slave device.
+ *
+ * @client: i2c device.
+ * @reg: the register to write to.
+ * @buf: raw data buffer to write.
+ * @len: length of the buffer to write
+ */
+static int goodix_i2c_write(struct i2c_client *client, u16 reg, const u8 *buf,
+			    unsigned len)
+{
+	u8 *addr_buf;
+	struct i2c_msg msg;
+	int ret;
+
+	addr_buf = kmalloc(len + 2, GFP_KERNEL);
+	if (!addr_buf)
+		return -ENOMEM;
+
+	addr_buf[0] = reg >> 8;
+	addr_buf[1] = reg & 0xFF;
+	memcpy(&addr_buf[2], buf, len);
+
+	msg.flags = 0;
+	msg.addr = client->addr;
+	msg.buf = addr_buf;
+	msg.len = len + 2;
+
+	ret = i2c_transfer(client->adapter, &msg, 1);
+	kfree(addr_buf);
+	return ret < 0 ? ret : (ret != 1 ? -EIO : 0);
+}
+
+static int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value)
+{
+	return goodix_i2c_write(client, reg, &value, sizeof(value));
+}
+
+static int goodix_get_cfg_len(u16 id)
+{
+	switch (id) {
+	case 911:
+	case 9271:
+	case 9110:
+	case 927:
+	case 928:
+		return GOODIX_CONFIG_911_LENGTH;
+
+	case 912:
+	case 967:
+		return GOODIX_CONFIG_967_LENGTH;
+
+	default:
+		return GOODIX_CONFIG_MAX_LENGTH;
+	}
+}
+
 static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)
 {
 	int touch_num;
@@ -155,10 +233,13 @@ static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data)
 	int input_y = get_unaligned_le16(&coor_data[3]);
 	int input_w = get_unaligned_le16(&coor_data[5]);
 
-	if (ts->rotated_screen) {
+	/* Inversions have to happen before axis swapping */
+	if (ts->inverted_x)
 		input_x = ts->abs_x_max - input_x;
+	if (ts->inverted_y)
 		input_y = ts->abs_y_max - input_y;
-	}
+	if (ts->swapped_x_y)
+		swap(input_x, input_y);
 
 	input_mt_slot(ts->input_dev, id);
 	input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
@@ -202,21 +283,195 @@ static void goodix_process_events(struct goodix_ts_data *ts)
  */
 static irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id)
 {
-	static const u8 end_cmd[] = {
-		GOODIX_READ_COOR_ADDR >> 8,
-		GOODIX_READ_COOR_ADDR & 0xff,
-		0
-	};
 	struct goodix_ts_data *ts = dev_id;
 
 	goodix_process_events(ts);
 
-	if (i2c_master_send(ts->client, end_cmd, sizeof(end_cmd)) < 0)
+	if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)
 		dev_err(&ts->client->dev, "I2C write end_cmd error\n");
 
 	return IRQ_HANDLED;
 }
 
+static void goodix_free_irq(struct goodix_ts_data *ts)
+{
+	devm_free_irq(&ts->client->dev, ts->client->irq, ts);
+}
+
+static int goodix_request_irq(struct goodix_ts_data *ts)
+{
+	return devm_request_threaded_irq(&ts->client->dev, ts->client->irq,
+					 NULL, goodix_ts_irq_handler,
+					 ts->irq_flags, ts->client->name, ts);
+}
+
+/**
+ * goodix_check_cfg - Checks if config fw is valid
+ *
+ * @ts: goodix_ts_data pointer
+ * @cfg: firmware config data
+ */
+static int goodix_check_cfg(struct goodix_ts_data *ts,
+			    const struct firmware *cfg)
+{
+	int i, raw_cfg_len;
+	u8 check_sum = 0;
+
+	if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) {
+		dev_err(&ts->client->dev,
+			"The length of the config fw is not correct");
+		return -EINVAL;
+	}
+
+	raw_cfg_len = cfg->size - 2;
+	for (i = 0; i < raw_cfg_len; i++)
+		check_sum += cfg->data[i];
+	check_sum = (~check_sum) + 1;
+	if (check_sum != cfg->data[raw_cfg_len]) {
+		dev_err(&ts->client->dev,
+			"The checksum of the config fw is not correct");
+		return -EINVAL;
+	}
+
+	if (cfg->data[raw_cfg_len + 1] != 1) {
+		dev_err(&ts->client->dev,
+			"Config fw must have Config_Fresh register set");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * goodix_send_cfg - Write fw config to device
+ *
+ * @ts: goodix_ts_data pointer
+ * @cfg: config firmware to write to device
+ */
+static int goodix_send_cfg(struct goodix_ts_data *ts,
+			   const struct firmware *cfg)
+{
+	int error;
+
+	error = goodix_check_cfg(ts, cfg);
+	if (error)
+		return error;
+
+	error = goodix_i2c_write(ts->client, GOODIX_REG_CONFIG_DATA, cfg->data,
+				 cfg->size);
+	if (error) {
+		dev_err(&ts->client->dev, "Failed to write config data: %d",
+			error);
+		return error;
+	}
+	dev_dbg(&ts->client->dev, "Config sent successfully.");
+
+	/* Let the firmware reconfigure itself, so sleep for 10ms */
+	usleep_range(10000, 11000);
+
+	return 0;
+}
+
+static int goodix_int_sync(struct goodix_ts_data *ts)
+{
+	int error;
+
+	error = gpiod_direction_output(ts->gpiod_int, 0);
+	if (error)
+		return error;
+
+	msleep(50);				/* T5: 50ms */
+
+	error = gpiod_direction_input(ts->gpiod_int);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+/**
+ * goodix_reset - Reset device during power on
+ *
+ * @ts: goodix_ts_data pointer
+ */
+static int goodix_reset(struct goodix_ts_data *ts)
+{
+	int error;
+
+	/* begin select I2C slave addr */
+	error = gpiod_direction_output(ts->gpiod_rst, 0);
+	if (error)
+		return error;
+
+	msleep(20);				/* T2: > 10ms */
+
+	/* HIGH: 0x28/0x29, LOW: 0xBA/0xBB */
+	error = gpiod_direction_output(ts->gpiod_int, ts->client->addr == 0x14);
+	if (error)
+		return error;
+
+	usleep_range(100, 2000);		/* T3: > 100us */
+
+	error = gpiod_direction_output(ts->gpiod_rst, 1);
+	if (error)
+		return error;
+
+	usleep_range(6000, 10000);		/* T4: > 5ms */
+
+	/* end select I2C slave addr */
+	error = gpiod_direction_input(ts->gpiod_rst);
+	if (error)
+		return error;
+
+	error = goodix_int_sync(ts);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+/**
+ * goodix_get_gpio_config - Get GPIO config from ACPI/DT
+ *
+ * @ts: goodix_ts_data pointer
+ */
+static int goodix_get_gpio_config(struct goodix_ts_data *ts)
+{
+	int error;
+	struct device *dev;
+	struct gpio_desc *gpiod;
+
+	if (!ts->client)
+		return -EINVAL;
+	dev = &ts->client->dev;
+
+	/* Get the interrupt GPIO pin number */
+	gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_INT_NAME, GPIOD_IN);
+	if (IS_ERR(gpiod)) {
+		error = PTR_ERR(gpiod);
+		if (error != -EPROBE_DEFER)
+			dev_dbg(dev, "Failed to get %s GPIO: %d\n",
+				GOODIX_GPIO_INT_NAME, error);
+		return error;
+	}
+
+	ts->gpiod_int = gpiod;
+
+	/* Get the reset line GPIO pin number */
+	gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_RST_NAME, GPIOD_IN);
+	if (IS_ERR(gpiod)) {
+		error = PTR_ERR(gpiod);
+		if (error != -EPROBE_DEFER)
+			dev_dbg(dev, "Failed to get %s GPIO: %d\n",
+				GOODIX_GPIO_RST_NAME, error);
+		return error;
+	}
+
+	ts->gpiod_rst = gpiod;
+
+	return 0;
+}
+
 /**
  * goodix_read_config - Read the embedded configuration of the panel
  *
@@ -230,14 +485,15 @@ static void goodix_read_config(struct goodix_ts_data *ts)
 	int error;
 
 	error = goodix_i2c_read(ts->client, GOODIX_REG_CONFIG_DATA,
-				config,
-				GOODIX_CONFIG_MAX_LENGTH);
+				config, ts->cfg_len);
 	if (error) {
 		dev_warn(&ts->client->dev,
 			 "Error reading config (%d), using defaults\n",
 			 error);
 		ts->abs_x_max = GOODIX_MAX_WIDTH;
 		ts->abs_y_max = GOODIX_MAX_HEIGHT;
+		if (ts->swapped_x_y)
+			swap(ts->abs_x_max, ts->abs_y_max);
 		ts->int_trigger_type = GOODIX_INT_TRIGGER;
 		ts->max_touch_num = GOODIX_MAX_CONTACTS;
 		return;
@@ -245,6 +501,8 @@ static void goodix_read_config(struct goodix_ts_data *ts)
 
 	ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC]);
 	ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC + 2]);
+	if (ts->swapped_x_y)
+		swap(ts->abs_x_max, ts->abs_y_max);
 	ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;
 	ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f;
 	if (!ts->abs_x_max || !ts->abs_y_max || !ts->max_touch_num) {
@@ -252,42 +510,45 @@ static void goodix_read_config(struct goodix_ts_data *ts)
 			"Invalid config, using defaults\n");
 		ts->abs_x_max = GOODIX_MAX_WIDTH;
 		ts->abs_y_max = GOODIX_MAX_HEIGHT;
+		if (ts->swapped_x_y)
+			swap(ts->abs_x_max, ts->abs_y_max);
 		ts->max_touch_num = GOODIX_MAX_CONTACTS;
 	}
 
-	ts->rotated_screen = dmi_check_system(rotated_screen);
-	if (ts->rotated_screen)
+	if (dmi_check_system(rotated_screen)) {
+		ts->inverted_x = true;
+		ts->inverted_y = true;
 		dev_dbg(&ts->client->dev,
 			 "Applying '180 degrees rotated screen' quirk\n");
+	}
 }
 
 /**
  * goodix_read_version - Read goodix touchscreen version
  *
- * @client: the i2c client
- * @version: output buffer containing the version on success
- * @id: output buffer containing the id on success
+ * @ts: our goodix_ts_data pointer
  */
-static int goodix_read_version(struct i2c_client *client, u16 *version, u16 *id)
+static int goodix_read_version(struct goodix_ts_data *ts)
 {
 	int error;
 	u8 buf[6];
 	char id_str[5];
 
-	error = goodix_i2c_read(client, GOODIX_REG_ID, buf, sizeof(buf));
+	error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));
 	if (error) {
-		dev_err(&client->dev, "read version failed: %d\n", error);
+		dev_err(&ts->client->dev, "read version failed: %d\n", error);
 		return error;
 	}
 
 	memcpy(id_str, buf, 4);
 	id_str[4] = 0;
-	if (kstrtou16(id_str, 10, id))
-		*id = 0x1001;
+	if (kstrtou16(id_str, 10, &ts->id))
+		ts->id = 0x1001;
 
-	*version = get_unaligned_le16(&buf[4]);
+	ts->version = get_unaligned_le16(&buf[4]);
 
-	dev_info(&client->dev, "ID %d, version: %04x\n", *id, *version);
+	dev_info(&ts->client->dev, "ID %d, version: %04x\n", ts->id,
+		 ts->version);
 
 	return 0;
 }
@@ -321,13 +582,10 @@ static int goodix_i2c_test(struct i2c_client *client)
  * goodix_request_input_dev - Allocate, populate and register the input device
  *
  * @ts: our goodix_ts_data pointer
- * @version: device firmware version
- * @id: device ID
  *
  * Must be called during probe
  */
-static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
-				    u16 id)
+static int goodix_request_input_dev(struct goodix_ts_data *ts)
 {
 	int error;
 
@@ -351,8 +609,8 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
 	ts->input_dev->phys = "input/ts";
 	ts->input_dev->id.bustype = BUS_I2C;
 	ts->input_dev->id.vendor = 0x0416;
-	ts->input_dev->id.product = id;
-	ts->input_dev->id.version = version;
+	ts->input_dev->id.product = ts->id;
+	ts->input_dev->id.version = ts->version;
 
 	error = input_register_device(ts->input_dev);
 	if (error) {
@@ -364,13 +622,75 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
 	return 0;
 }
 
+/**
+ * goodix_configure_dev - Finish device initialization
+ *
+ * @ts: our goodix_ts_data pointer
+ *
+ * Must be called from probe to finish initialization of the device.
+ * Contains the common initialization code for both devices that
+ * declare gpio pins and devices that do not. It is either called
+ * directly from probe or from request_firmware_wait callback.
+ */
+static int goodix_configure_dev(struct goodix_ts_data *ts)
+{
+	int error;
+
+	ts->swapped_x_y = device_property_read_bool(&ts->client->dev,
+						    "touchscreen-swapped-x-y");
+	ts->inverted_x = device_property_read_bool(&ts->client->dev,
+						   "touchscreen-inverted-x");
+	ts->inverted_y = device_property_read_bool(&ts->client->dev,
+						   "touchscreen-inverted-y");
+
+	goodix_read_config(ts);
+
+	error = goodix_request_input_dev(ts);
+	if (error)
+		return error;
+
+	ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
+	error = goodix_request_irq(ts);
+	if (error) {
+		dev_err(&ts->client->dev, "request IRQ failed: %d\n", error);
+		return error;
+	}
+
+	return 0;
+}
+
+/**
+ * goodix_config_cb - Callback to finish device init
+ *
+ * @ts: our goodix_ts_data pointer
+ *
+ * request_firmware_wait callback that finishes
+ * initialization of the device.
+ */
+static void goodix_config_cb(const struct firmware *cfg, void *ctx)
+{
+	struct goodix_ts_data *ts = ctx;
+	int error;
+
+	if (cfg) {
+		/* send device configuration to the firmware */
+		error = goodix_send_cfg(ts, cfg);
+		if (error)
+			goto err_release_cfg;
+	}
+
+	goodix_configure_dev(ts);
+
+err_release_cfg:
+	release_firmware(cfg);
+	complete_all(&ts->firmware_loading_complete);
+}
+
 static int goodix_ts_probe(struct i2c_client *client,
 			   const struct i2c_device_id *id)
 {
 	struct goodix_ts_data *ts;
-	unsigned long irq_flags;
 	int error;
-	u16 version_info, id_info;
 
 	dev_dbg(&client->dev, "I2C Address: 0x%02x\n", client->addr);
 
@@ -385,6 +705,20 @@ static int goodix_ts_probe(struct i2c_client *client,
 
 	ts->client = client;
 	i2c_set_clientdata(client, ts);
+	init_completion(&ts->firmware_loading_complete);
+
+	error = goodix_get_gpio_config(ts);
+	if (error)
+		return error;
+
+	if (ts->gpiod_int && ts->gpiod_rst) {
+		/* reset the controller */
+		error = goodix_reset(ts);
+		if (error) {
+			dev_err(&client->dev, "Controller reset failed.\n");
+			return error;
+		}
+	}
 
 	error = goodix_i2c_test(client);
 	if (error) {
@@ -392,30 +726,125 @@ static int goodix_ts_probe(struct i2c_client *client,
 		return error;
 	}
 
-	error = goodix_read_version(client, &version_info, &id_info);
+	error = goodix_read_version(ts);
 	if (error) {
 		dev_err(&client->dev, "Read version failed.\n");
 		return error;
 	}
 
-	goodix_read_config(ts);
+	ts->cfg_len = goodix_get_cfg_len(ts->id);
+
+	if (ts->gpiod_int && ts->gpiod_rst) {
+		/* update device config */
+		ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL,
+					      "goodix_%d_cfg.bin", ts->id);
+		if (!ts->cfg_name)
+			return -ENOMEM;
+
+		error = request_firmware_nowait(THIS_MODULE, true, ts->cfg_name,
+						&client->dev, GFP_KERNEL, ts,
+						goodix_config_cb);
+		if (error) {
+			dev_err(&client->dev,
+				"Failed to invoke firmware loader: %d\n",
+				error);
+			return error;
+		}
 
-	error = goodix_request_input_dev(ts, version_info, id_info);
-	if (error)
-		return error;
+		return 0;
+	} else {
+		error = goodix_configure_dev(ts);
+		if (error)
+			return error;
+	}
+
+	return 0;
+}
+
+static int goodix_ts_remove(struct i2c_client *client)
+{
+	struct goodix_ts_data *ts = i2c_get_clientdata(client);
+
+	if (ts->gpiod_int && ts->gpiod_rst)
+		wait_for_completion(&ts->firmware_loading_complete);
+
+	return 0;
+}
+
+static int __maybe_unused goodix_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct goodix_ts_data *ts = i2c_get_clientdata(client);
+	int error;
 
-	irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
-	error = devm_request_threaded_irq(&ts->client->dev, client->irq,
-					  NULL, goodix_ts_irq_handler,
-					  irq_flags, client->name, ts);
+	/* We need gpio pins to suspend/resume */
+	if (!ts->gpiod_int || !ts->gpiod_rst)
+		return 0;
+
+	wait_for_completion(&ts->firmware_loading_complete);
+
+	/* Free IRQ as IRQ pin is used as output in the suspend sequence */
+	goodix_free_irq(ts);
+
+	/* Output LOW on the INT pin for 5 ms */
+	error = gpiod_direction_output(ts->gpiod_int, 0);
 	if (error) {
-		dev_err(&client->dev, "request IRQ failed: %d\n", error);
+		goodix_request_irq(ts);
 		return error;
 	}
 
+	usleep_range(5000, 6000);
+
+	error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,
+				    GOODIX_CMD_SCREEN_OFF);
+	if (error) {
+		dev_err(&ts->client->dev, "Screen off command failed\n");
+		gpiod_direction_input(ts->gpiod_int);
+		goodix_request_irq(ts);
+		return -EAGAIN;
+	}
+
+	/*
+	 * The datasheet specifies that the interval between sending screen-off
+	 * command and wake-up should be longer than 58 ms. To avoid waking up
+	 * sooner, delay 58ms here.
+	 */
+	msleep(58);
+	return 0;
+}
+
+static int __maybe_unused goodix_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct goodix_ts_data *ts = i2c_get_clientdata(client);
+	int error;
+
+	if (!ts->gpiod_int || !ts->gpiod_rst)
+		return 0;
+
+	/*
+	 * Exit sleep mode by outputting HIGH level to INT pin
+	 * for 2ms~5ms.
+	 */
+	error = gpiod_direction_output(ts->gpiod_int, 1);
+	if (error)
+		return error;
+
+	usleep_range(2000, 5000);
+
+	error = goodix_int_sync(ts);
+	if (error)
+		return error;
+
+	error = goodix_request_irq(ts);
+	if (error)
+		return error;
+
 	return 0;
 }
 
+static SIMPLE_DEV_PM_OPS(goodix_pm_ops, goodix_suspend, goodix_resume);
+
 static const struct i2c_device_id goodix_ts_id[] = {
 	{ "GDIX1001:00", 0 },
 	{ }
@@ -446,11 +875,13 @@ MODULE_DEVICE_TABLE(of, goodix_of_match);
 
 static struct i2c_driver goodix_ts_driver = {
 	.probe = goodix_ts_probe,
+	.remove = goodix_ts_remove,
 	.id_table = goodix_ts_id,
 	.driver = {
 		.name = "Goodix-TS",
 		.acpi_match_table = ACPI_PTR(goodix_acpi_match),
 		.of_match_table = of_match_ptr(goodix_of_match),
+		.pm = &goodix_pm_ops,
 	},
 };
 module_i2c_driver(goodix_ts_driver);
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index 23a354a392ae..0e3fc419a3cf 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -87,7 +87,7 @@ static void pcap_ts_read_xy(void *data, u16 res[2])
 
 static void pcap_ts_work(struct work_struct *work)
 {
-	struct delayed_work *dw = container_of(work, struct delayed_work, work);
+	struct delayed_work *dw = to_delayed_work(work);
 	struct pcap_ts *pcap_ts = container_of(dw, struct pcap_ts, work);
 	u8 ch[2];
 
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 4b961ad9f0b5..09523a3d3f23 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -38,6 +38,8 @@ struct pixcir_i2c_ts_data {
 	struct input_dev *input;
 	struct gpio_desc *gpio_attb;
 	struct gpio_desc *gpio_reset;
+	struct gpio_desc *gpio_enable;
+	struct gpio_desc *gpio_wake;
 	const struct pixcir_i2c_chip_data *chip;
 	int max_fingers;	/* Max fingers supported in this instance */
 	bool running;
@@ -208,6 +210,11 @@ static int pixcir_set_power_mode(struct pixcir_i2c_ts_data *ts,
 	struct device *dev = &ts->client->dev;
 	int ret;
 
+	if (mode == PIXCIR_POWER_ACTIVE || mode == PIXCIR_POWER_IDLE) {
+		if (ts->gpio_wake)
+			gpiod_set_value_cansleep(ts->gpio_wake, 1);
+	}
+
 	ret = i2c_smbus_read_byte_data(ts->client, PIXCIR_REG_POWER_MODE);
 	if (ret < 0) {
 		dev_err(dev, "%s: can't read reg 0x%x : %d\n",
@@ -228,6 +235,11 @@ static int pixcir_set_power_mode(struct pixcir_i2c_ts_data *ts,
 		return ret;
 	}
 
+	if (mode == PIXCIR_POWER_HALT) {
+		if (ts->gpio_wake)
+			gpiod_set_value_cansleep(ts->gpio_wake, 0);
+	}
+
 	return 0;
 }
 
@@ -302,6 +314,11 @@ static int pixcir_start(struct pixcir_i2c_ts_data *ts)
 	struct device *dev = &ts->client->dev;
 	int error;
 
+	if (ts->gpio_enable) {
+		gpiod_set_value_cansleep(ts->gpio_enable, 1);
+		msleep(100);
+	}
+
 	/* LEVEL_TOUCH interrupt with active low polarity */
 	error = pixcir_set_int_mode(ts, PIXCIR_INT_LEVEL_TOUCH, 0);
 	if (error) {
@@ -343,6 +360,9 @@ static int pixcir_stop(struct pixcir_i2c_ts_data *ts)
 	/* Wait till running ISR is complete */
 	synchronize_irq(ts->client->irq);
 
+	if (ts->gpio_enable)
+		gpiod_set_value_cansleep(ts->gpio_enable, 0);
+
 	return 0;
 }
 
@@ -534,6 +554,27 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
 		return error;
 	}
 
+	tsdata->gpio_wake = devm_gpiod_get_optional(dev, "wake",
+						    GPIOD_OUT_HIGH);
+	if (IS_ERR(tsdata->gpio_wake)) {
+		error = PTR_ERR(tsdata->gpio_wake);
+		if (error != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get wake gpio: %d\n", error);
+		return error;
+	}
+
+	tsdata->gpio_enable = devm_gpiod_get_optional(dev, "enable",
+						      GPIOD_OUT_HIGH);
+	if (IS_ERR(tsdata->gpio_enable)) {
+		error = PTR_ERR(tsdata->gpio_enable);
+		if (error != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get enable gpio: %d\n", error);
+		return error;
+	}
+
+	if (tsdata->gpio_enable)
+		msleep(100);
+
 	error = devm_request_threaded_irq(dev, client->irq, NULL, pixcir_ts_isr,
 					  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 					  client->name, tsdata);
diff --git a/drivers/input/touchscreen/rohm_bu21023.c b/drivers/input/touchscreen/rohm_bu21023.c
index ba6024f93469..611156a2ef80 100644
--- a/drivers/input/touchscreen/rohm_bu21023.c
+++ b/drivers/input/touchscreen/rohm_bu21023.c
@@ -725,7 +725,7 @@ static int rohm_ts_load_firmware(struct i2c_client *client,
 			break;
 
 		error = -EIO;
-	} while (++retry >= FIRMWARE_RETRY_MAX);
+	} while (++retry <= FIRMWARE_RETRY_MAX);
 
 out:
 	error2 = i2c_smbus_write_byte_data(client, INT_MASK, INT_ALL);
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 191a1b87895f..a21a07c3ab6d 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -273,8 +273,6 @@ static irqreturn_t titsc_irq(int irq, void *dev)
 	status = titsc_readl(ts_dev, REG_RAWIRQSTATUS);
 	if (status & IRQENB_HW_PEN) {
 		ts_dev->pen_down = true;
-		titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00);
-		titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN);
 		irqclr |= IRQENB_HW_PEN;
 	}
 
diff --git a/drivers/input/touchscreen/ts4800-ts.c b/drivers/input/touchscreen/ts4800-ts.c
new file mode 100644
index 000000000000..3c3dd78303be
--- /dev/null
+++ b/drivers/input/touchscreen/ts4800-ts.c
@@ -0,0 +1,216 @@
+/*
+ * Touchscreen driver for the TS-4800 board
+ *
+ * Copyright (c) 2015 - Savoir-faire Linux
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/bitops.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+/* polling interval in ms */
+#define POLL_INTERVAL		3
+
+#define DEBOUNCE_COUNT		1
+
+/* sensor values are 12-bit wide */
+#define MAX_12BIT		((1 << 12) - 1)
+
+#define PENDOWN_MASK		0x1
+
+#define X_OFFSET		0x0
+#define Y_OFFSET		0x2
+
+struct ts4800_ts {
+	struct input_polled_dev *poll_dev;
+	struct device           *dev;
+	char                    phys[32];
+
+	void __iomem            *base;
+	struct regmap           *regmap;
+	unsigned int            reg;
+	unsigned int            bit;
+
+	bool                    pendown;
+	int                     debounce;
+};
+
+static void ts4800_ts_open(struct input_polled_dev *dev)
+{
+	struct ts4800_ts *ts = dev->private;
+	int ret;
+
+	ts->pendown = false;
+	ts->debounce = DEBOUNCE_COUNT;
+
+	ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, ts->bit);
+	if (ret)
+		dev_warn(ts->dev, "Failed to enable touchscreen\n");
+}
+
+static void ts4800_ts_close(struct input_polled_dev *dev)
+{
+	struct ts4800_ts *ts = dev->private;
+	int ret;
+
+	ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, 0);
+	if (ret)
+		dev_warn(ts->dev, "Failed to disable touchscreen\n");
+
+}
+
+static void ts4800_ts_poll(struct input_polled_dev *dev)
+{
+	struct input_dev *input_dev = dev->input;
+	struct ts4800_ts *ts = dev->private;
+	u16 last_x = readw(ts->base + X_OFFSET);
+	u16 last_y = readw(ts->base + Y_OFFSET);
+	bool pendown = last_x & PENDOWN_MASK;
+
+	if (pendown) {
+		if (ts->debounce) {
+			ts->debounce--;
+			return;
+		}
+
+		if (!ts->pendown) {
+			input_report_key(input_dev, BTN_TOUCH, 1);
+			ts->pendown = true;
+		}
+
+		last_x = ((~last_x) >> 4) & MAX_12BIT;
+		last_y = ((~last_y) >> 4) & MAX_12BIT;
+
+		input_report_abs(input_dev, ABS_X, last_x);
+		input_report_abs(input_dev, ABS_Y, last_y);
+		input_sync(input_dev);
+	} else if (ts->pendown) {
+		ts->pendown = false;
+		ts->debounce = DEBOUNCE_COUNT;
+		input_report_key(input_dev, BTN_TOUCH, 0);
+		input_sync(input_dev);
+	}
+}
+
+static int ts4800_parse_dt(struct platform_device *pdev,
+			   struct ts4800_ts *ts)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *syscon_np;
+	u32 reg, bit;
+	int error;
+
+	syscon_np = of_parse_phandle(np, "syscon", 0);
+	if (!syscon_np) {
+		dev_err(dev, "no syscon property\n");
+		return -ENODEV;
+	}
+
+	error = of_property_read_u32_index(np, "syscon", 1, &reg);
+	if (error < 0) {
+		dev_err(dev, "no offset in syscon\n");
+		return error;
+	}
+
+	ts->reg = reg;
+
+	error = of_property_read_u32_index(np, "syscon", 2, &bit);
+	if (error < 0) {
+		dev_err(dev, "no bit in syscon\n");
+		return error;
+	}
+
+	ts->bit = BIT(bit);
+
+	ts->regmap = syscon_node_to_regmap(syscon_np);
+	if (IS_ERR(ts->regmap)) {
+		dev_err(dev, "cannot get parent's regmap\n");
+		return PTR_ERR(ts->regmap);
+	}
+
+	return 0;
+}
+
+static int ts4800_ts_probe(struct platform_device *pdev)
+{
+	struct input_polled_dev *poll_dev;
+	struct ts4800_ts *ts;
+	struct resource *res;
+	int error;
+
+	ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	error = ts4800_parse_dt(pdev, ts);
+	if (error)
+		return error;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ts->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ts->base))
+		return PTR_ERR(ts->base);
+
+	poll_dev = devm_input_allocate_polled_device(&pdev->dev);
+	if (!poll_dev)
+		return -ENOMEM;
+
+	snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&pdev->dev));
+	ts->poll_dev = poll_dev;
+	ts->dev = &pdev->dev;
+
+	poll_dev->private = ts;
+	poll_dev->poll_interval = POLL_INTERVAL;
+	poll_dev->open = ts4800_ts_open;
+	poll_dev->close = ts4800_ts_close;
+	poll_dev->poll = ts4800_ts_poll;
+
+	poll_dev->input->name = "TS-4800 Touchscreen";
+	poll_dev->input->phys = ts->phys;
+
+	input_set_capability(poll_dev->input, EV_KEY, BTN_TOUCH);
+	input_set_abs_params(poll_dev->input, ABS_X, 0, MAX_12BIT, 0, 0);
+	input_set_abs_params(poll_dev->input, ABS_Y, 0, MAX_12BIT, 0, 0);
+
+	error = input_register_polled_device(poll_dev);
+	if (error) {
+		dev_err(&pdev->dev,
+			"Unabled to register polled input device (%d)\n",
+			error);
+		return error;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id ts4800_ts_of_match[] = {
+	{ .compatible = "technologic,ts4800-ts", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, ts4800_ts_of_match);
+
+static struct platform_driver ts4800_ts_driver = {
+	.driver = {
+		.name = "ts4800-ts",
+		.of_match_table = ts4800_ts_of_match,
+	},
+	.probe = ts4800_ts_probe,
+};
+module_platform_driver(ts4800_ts_driver);
+
+MODULE_AUTHOR("Damien Riegel <damien.riegel@savoirfairelinux.com>");
+MODULE_DESCRIPTION("TS-4800 Touchscreen Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:ts4800_ts");
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 2792ca397dd0..bab3c6acf6a2 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -80,7 +80,8 @@ struct w8001_touch_query {
  */
 
 struct w8001 {
-	struct input_dev *dev;
+	struct input_dev *pen_dev;
+	struct input_dev *touch_dev;
 	struct serio *serio;
 	struct completion cmd_done;
 	int id;
@@ -95,7 +96,10 @@ struct w8001 {
 	u16 max_touch_y;
 	u16 max_pen_x;
 	u16 max_pen_y;
-	char name[64];
+	char pen_name[64];
+	char touch_name[64];
+	int open_count;
+	struct mutex mutex;
 };
 
 static void parse_pen_data(u8 *data, struct w8001_coord *coord)
@@ -141,7 +145,7 @@ static void scale_touch_coordinates(struct w8001 *w8001,
 
 static void parse_multi_touch(struct w8001 *w8001)
 {
-	struct input_dev *dev = w8001->dev;
+	struct input_dev *dev = w8001->touch_dev;
 	unsigned char *data = w8001->data;
 	unsigned int x, y;
 	int i;
@@ -151,7 +155,6 @@ static void parse_multi_touch(struct w8001 *w8001)
 		bool touch = data[0] & (1 << i);
 
 		input_mt_slot(dev, i);
-		input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch);
 		if (touch) {
 			x = (data[6 * i + 1] << 7) | data[6 * i + 2];
 			y = (data[6 * i + 3] << 7) | data[6 * i + 4];
@@ -207,7 +210,7 @@ static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
 
 static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
 {
-	struct input_dev *dev = w8001->dev;
+	struct input_dev *dev = w8001->pen_dev;
 
 	/*
 	 * We have 1 bit for proximity (rdy) and 3 bits for tip, side,
@@ -233,11 +236,6 @@ static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
 		break;
 
 	case BTN_TOOL_FINGER:
-		input_report_key(dev, BTN_TOUCH, 0);
-		input_report_key(dev, BTN_TOOL_FINGER, 0);
-		input_sync(dev);
-		/* fall through */
-
 	case KEY_RESERVED:
 		w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
 		break;
@@ -261,7 +259,7 @@ static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
 
 static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord)
 {
-	struct input_dev *dev = w8001->dev;
+	struct input_dev *dev = w8001->touch_dev;
 	unsigned int x = coord->x;
 	unsigned int y = coord->y;
 
@@ -271,7 +269,6 @@ static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord)
 	input_report_abs(dev, ABS_X, x);
 	input_report_abs(dev, ABS_Y, y);
 	input_report_key(dev, BTN_TOUCH, coord->tsw);
-	input_report_key(dev, BTN_TOOL_FINGER, coord->tsw);
 
 	input_sync(dev);
 
@@ -369,22 +366,36 @@ static int w8001_command(struct w8001 *w8001, unsigned char command,
 static int w8001_open(struct input_dev *dev)
 {
 	struct w8001 *w8001 = input_get_drvdata(dev);
+	int err;
 
-	return w8001_command(w8001, W8001_CMD_START, false);
+	err = mutex_lock_interruptible(&w8001->mutex);
+	if (err)
+		return err;
+
+	if (w8001->open_count++ == 0) {
+		err = w8001_command(w8001, W8001_CMD_START, false);
+		if (err)
+			w8001->open_count--;
+	}
+
+	mutex_unlock(&w8001->mutex);
+	return err;
 }
 
 static void w8001_close(struct input_dev *dev)
 {
 	struct w8001 *w8001 = input_get_drvdata(dev);
 
-	w8001_command(w8001, W8001_CMD_STOP, false);
+	mutex_lock(&w8001->mutex);
+
+	if (--w8001->open_count == 0)
+		w8001_command(w8001, W8001_CMD_STOP, false);
+
+	mutex_unlock(&w8001->mutex);
 }
 
-static int w8001_setup(struct w8001 *w8001)
+static int w8001_detect(struct w8001 *w8001)
 {
-	struct input_dev *dev = w8001->dev;
-	struct w8001_coord coord;
-	struct w8001_touch_query touch;
 	int error;
 
 	error = w8001_command(w8001, W8001_CMD_STOP, false);
@@ -393,105 +404,145 @@ static int w8001_setup(struct w8001 *w8001)
 
 	msleep(250);	/* wait 250ms before querying the device */
 
-	dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-	strlcat(w8001->name, "Wacom Serial", sizeof(w8001->name));
+	return 0;
+}
 
-	__set_bit(INPUT_PROP_DIRECT, dev->propbit);
+static int w8001_setup_pen(struct w8001 *w8001, char *basename,
+			   size_t basename_sz)
+{
+	struct input_dev *dev = w8001->pen_dev;
+	struct w8001_coord coord;
+	int error;
 
 	/* penabled? */
 	error = w8001_command(w8001, W8001_CMD_QUERY, true);
-	if (!error) {
-		__set_bit(BTN_TOUCH, dev->keybit);
-		__set_bit(BTN_TOOL_PEN, dev->keybit);
-		__set_bit(BTN_TOOL_RUBBER, dev->keybit);
-		__set_bit(BTN_STYLUS, dev->keybit);
-		__set_bit(BTN_STYLUS2, dev->keybit);
-
-		parse_pen_data(w8001->response, &coord);
-		w8001->max_pen_x = coord.x;
-		w8001->max_pen_y = coord.y;
-
-		input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
-		input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
-		input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
-		input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
-		input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
-		if (coord.tilt_x && coord.tilt_y) {
-			input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
-			input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
-		}
-		w8001->id = 0x90;
-		strlcat(w8001->name, " Penabled", sizeof(w8001->name));
+	if (error)
+		return error;
+
+	__set_bit(EV_KEY, dev->evbit);
+	__set_bit(EV_ABS, dev->evbit);
+	__set_bit(BTN_TOUCH, dev->keybit);
+	__set_bit(BTN_TOOL_PEN, dev->keybit);
+	__set_bit(BTN_TOOL_RUBBER, dev->keybit);
+	__set_bit(BTN_STYLUS, dev->keybit);
+	__set_bit(BTN_STYLUS2, dev->keybit);
+	__set_bit(INPUT_PROP_DIRECT, dev->propbit);
+
+	parse_pen_data(w8001->response, &coord);
+	w8001->max_pen_x = coord.x;
+	w8001->max_pen_y = coord.y;
+
+	input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
+	input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
+	input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
+	input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
+	input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
+	if (coord.tilt_x && coord.tilt_y) {
+		input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
+		input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
 	}
 
+	w8001->id = 0x90;
+	strlcat(basename, " Penabled", basename_sz);
+
+	return 0;
+}
+
+static int w8001_setup_touch(struct w8001 *w8001, char *basename,
+			     size_t basename_sz)
+{
+	struct input_dev *dev = w8001->touch_dev;
+	struct w8001_touch_query touch;
+	int error;
+
+
 	/* Touch enabled? */
 	error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);
-
+	if (error)
+		return error;
 	/*
 	 * Some non-touch devices may reply to the touch query. But their
 	 * second byte is empty, which indicates touch is not supported.
 	 */
-	if (!error && w8001->response[1]) {
-		__set_bit(BTN_TOUCH, dev->keybit);
-		__set_bit(BTN_TOOL_FINGER, dev->keybit);
-
-		parse_touchquery(w8001->response, &touch);
-		w8001->max_touch_x = touch.x;
-		w8001->max_touch_y = touch.y;
-
-		if (w8001->max_pen_x && w8001->max_pen_y) {
-			/* if pen is supported scale to pen maximum */
-			touch.x = w8001->max_pen_x;
-			touch.y = w8001->max_pen_y;
-			touch.panel_res = W8001_PEN_RESOLUTION;
-		}
+	if (!w8001->response[1])
+		return -ENXIO;
 
-		input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
-		input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
-		input_abs_set_res(dev, ABS_X, touch.panel_res);
-		input_abs_set_res(dev, ABS_Y, touch.panel_res);
-
-		switch (touch.sensor_id) {
-		case 0:
-		case 2:
-			w8001->pktlen = W8001_PKTLEN_TOUCH93;
-			w8001->id = 0x93;
-			strlcat(w8001->name, " 1FG", sizeof(w8001->name));
-			break;
+	__set_bit(EV_KEY, dev->evbit);
+	__set_bit(EV_ABS, dev->evbit);
+	__set_bit(BTN_TOUCH, dev->keybit);
+	__set_bit(INPUT_PROP_DIRECT, dev->propbit);
 
-		case 1:
-		case 3:
-		case 4:
-			w8001->pktlen = W8001_PKTLEN_TOUCH9A;
-			strlcat(w8001->name, " 1FG", sizeof(w8001->name));
-			w8001->id = 0x9a;
-			break;
+	parse_touchquery(w8001->response, &touch);
+	w8001->max_touch_x = touch.x;
+	w8001->max_touch_y = touch.y;
 
-		case 5:
-			w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
-
-			input_mt_init_slots(dev, 2, 0);
-			input_set_abs_params(dev, ABS_MT_POSITION_X,
-						0, touch.x, 0, 0);
-			input_set_abs_params(dev, ABS_MT_POSITION_Y,
-						0, touch.y, 0, 0);
-			input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
-						0, MT_TOOL_MAX, 0, 0);
-
-			strlcat(w8001->name, " 2FG", sizeof(w8001->name));
-			if (w8001->max_pen_x && w8001->max_pen_y)
-				w8001->id = 0xE3;
-			else
-				w8001->id = 0xE2;
-			break;
-		}
+	if (w8001->max_pen_x && w8001->max_pen_y) {
+		/* if pen is supported scale to pen maximum */
+		touch.x = w8001->max_pen_x;
+		touch.y = w8001->max_pen_y;
+		touch.panel_res = W8001_PEN_RESOLUTION;
+	}
+
+	input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
+	input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
+	input_abs_set_res(dev, ABS_X, touch.panel_res);
+	input_abs_set_res(dev, ABS_Y, touch.panel_res);
+
+	switch (touch.sensor_id) {
+	case 0:
+	case 2:
+		w8001->pktlen = W8001_PKTLEN_TOUCH93;
+		w8001->id = 0x93;
+		strlcat(basename, " 1FG", basename_sz);
+		break;
+
+	case 1:
+	case 3:
+	case 4:
+		w8001->pktlen = W8001_PKTLEN_TOUCH9A;
+		strlcat(basename, " 1FG", basename_sz);
+		w8001->id = 0x9a;
+		break;
+
+	case 5:
+		w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
+
+		__set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+		input_mt_init_slots(dev, 2, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_X,
+					0, touch.x, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_Y,
+					0, touch.y, 0, 0);
+
+		strlcat(basename, " 2FG", basename_sz);
+		if (w8001->max_pen_x && w8001->max_pen_y)
+			w8001->id = 0xE3;
+		else
+			w8001->id = 0xE2;
+		break;
 	}
 
-	strlcat(w8001->name, " Touchscreen", sizeof(w8001->name));
+	strlcat(basename, " Touchscreen", basename_sz);
 
 	return 0;
 }
 
+static void w8001_set_devdata(struct input_dev *dev, struct w8001 *w8001,
+			      struct serio *serio)
+{
+	dev->phys = w8001->phys;
+	dev->id.bustype = BUS_RS232;
+	dev->id.product = w8001->id;
+	dev->id.vendor = 0x056a;
+	dev->id.version = 0x0100;
+	dev->open = w8001_open;
+	dev->close = w8001_close;
+
+	dev->dev.parent = &serio->dev;
+
+	input_set_drvdata(dev, w8001);
+}
+
 /*
  * w8001_disconnect() is the opposite of w8001_connect()
  */
@@ -502,7 +553,10 @@ static void w8001_disconnect(struct serio *serio)
 
 	serio_close(serio);
 
-	input_unregister_device(w8001->dev);
+	if (w8001->pen_dev)
+		input_unregister_device(w8001->pen_dev);
+	if (w8001->touch_dev)
+		input_unregister_device(w8001->touch_dev);
 	kfree(w8001);
 
 	serio_set_drvdata(serio, NULL);
@@ -517,18 +571,23 @@ static void w8001_disconnect(struct serio *serio)
 static int w8001_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct w8001 *w8001;
-	struct input_dev *input_dev;
-	int err;
+	struct input_dev *input_dev_pen;
+	struct input_dev *input_dev_touch;
+	char basename[64];
+	int err, err_pen, err_touch;
 
 	w8001 = kzalloc(sizeof(struct w8001), GFP_KERNEL);
-	input_dev = input_allocate_device();
-	if (!w8001 || !input_dev) {
+	input_dev_pen = input_allocate_device();
+	input_dev_touch = input_allocate_device();
+	if (!w8001 || !input_dev_pen || !input_dev_touch) {
 		err = -ENOMEM;
 		goto fail1;
 	}
 
 	w8001->serio = serio;
-	w8001->dev = input_dev;
+	w8001->pen_dev = input_dev_pen;
+	w8001->touch_dev = input_dev_touch;
+	mutex_init(&w8001->mutex);
 	init_completion(&w8001->cmd_done);
 	snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys);
 
@@ -537,35 +596,67 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
 	if (err)
 		goto fail2;
 
-	err = w8001_setup(w8001);
+	err = w8001_detect(w8001);
 	if (err)
 		goto fail3;
 
-	input_dev->name = w8001->name;
-	input_dev->phys = w8001->phys;
-	input_dev->id.product = w8001->id;
-	input_dev->id.bustype = BUS_RS232;
-	input_dev->id.vendor = 0x056a;
-	input_dev->id.version = 0x0100;
-	input_dev->dev.parent = &serio->dev;
+	/* For backwards-compatibility we compose the basename based on
+	 * capabilities and then just append the tool type
+	 */
+	strlcpy(basename, "Wacom Serial", sizeof(basename));
+
+	err_pen = w8001_setup_pen(w8001, basename, sizeof(basename));
+	err_touch = w8001_setup_touch(w8001, basename, sizeof(basename));
+	if (err_pen && err_touch) {
+		err = -ENXIO;
+		goto fail3;
+	}
+
+	if (!err_pen) {
+		strlcpy(w8001->pen_name, basename, sizeof(w8001->pen_name));
+		strlcat(w8001->pen_name, " Pen", sizeof(w8001->pen_name));
+		input_dev_pen->name = w8001->pen_name;
 
-	input_dev->open = w8001_open;
-	input_dev->close = w8001_close;
+		w8001_set_devdata(input_dev_pen, w8001, serio);
 
-	input_set_drvdata(input_dev, w8001);
+		err = input_register_device(w8001->pen_dev);
+		if (err)
+			goto fail3;
+	} else {
+		input_free_device(input_dev_pen);
+		input_dev_pen = NULL;
+		w8001->pen_dev = NULL;
+	}
 
-	err = input_register_device(w8001->dev);
-	if (err)
-		goto fail3;
+	if (!err_touch) {
+		strlcpy(w8001->touch_name, basename, sizeof(w8001->touch_name));
+		strlcat(w8001->touch_name, " Finger",
+			sizeof(w8001->touch_name));
+		input_dev_touch->name = w8001->touch_name;
+
+		w8001_set_devdata(input_dev_touch, w8001, serio);
+
+		err = input_register_device(w8001->touch_dev);
+		if (err)
+			goto fail4;
+	} else {
+		input_free_device(input_dev_touch);
+		input_dev_touch = NULL;
+		w8001->touch_dev = NULL;
+	}
 
 	return 0;
 
+fail4:
+	if (w8001->pen_dev)
+		input_unregister_device(w8001->pen_dev);
 fail3:
 	serio_close(serio);
 fail2:
 	serio_set_drvdata(serio, NULL);
 fail1:
-	input_free_device(input_dev);
+	input_free_device(input_dev_pen);
+	input_free_device(input_dev_touch);
 	kfree(w8001);
 	return err;
 }
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 312ffd3d0017..9e385b38debf 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -22,7 +22,8 @@
 
 unsigned long switcher_addr;
 struct page **lg_switcher_pages;
-static struct vm_struct *switcher_vma;
+static struct vm_struct *switcher_text_vma;
+static struct vm_struct *switcher_stacks_vma;
 
 /* This One Big lock protects all inter-guest data structures. */
 DEFINE_MUTEX(lguest_lock);
@@ -83,54 +84,80 @@ static __init int map_switcher(void)
 	}
 
 	/*
+	 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
+	 * It goes in the first page, which we map in momentarily.
+	 */
+	memcpy(kmap(lg_switcher_pages[0]), start_switcher_text,
+	       end_switcher_text - start_switcher_text);
+	kunmap(lg_switcher_pages[0]);
+
+	/*
 	 * We place the Switcher underneath the fixmap area, which is the
 	 * highest virtual address we can get.  This is important, since we
 	 * tell the Guest it can't access this memory, so we want its ceiling
 	 * as high as possible.
 	 */
-	switcher_addr = FIXADDR_START - (TOTAL_SWITCHER_PAGES+1)*PAGE_SIZE;
+	switcher_addr = FIXADDR_START - TOTAL_SWITCHER_PAGES*PAGE_SIZE;
 
 	/*
-	 * Now we reserve the "virtual memory area" we want.  We might
-	 * not get it in theory, but in practice it's worked so far.
-	 * The end address needs +1 because __get_vm_area allocates an
-	 * extra guard page, so we need space for that.
+	 * Now we reserve the "virtual memory area"s we want.  We might
+	 * not get them in theory, but in practice it's worked so far.
+	 *
+	 * We want the switcher text to be read-only and executable, and
+	 * the stacks to be read-write and non-executable.
 	 */
-	switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
-				     VM_ALLOC, switcher_addr, switcher_addr
-				     + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
-	if (!switcher_vma) {
+	switcher_text_vma = __get_vm_area(PAGE_SIZE, VM_ALLOC|VM_NO_GUARD,
+					  switcher_addr,
+					  switcher_addr + PAGE_SIZE);
+
+	if (!switcher_text_vma) {
 		err = -ENOMEM;
 		printk("lguest: could not map switcher pages high\n");
 		goto free_pages;
 	}
 
+	switcher_stacks_vma = __get_vm_area(SWITCHER_STACK_PAGES * PAGE_SIZE,
+					    VM_ALLOC|VM_NO_GUARD,
+					    switcher_addr + PAGE_SIZE,
+					    switcher_addr + TOTAL_SWITCHER_PAGES * PAGE_SIZE);
+	if (!switcher_stacks_vma) {
+		err = -ENOMEM;
+		printk("lguest: could not map switcher pages high\n");
+		goto free_text_vma;
+	}
+
 	/*
 	 * This code actually sets up the pages we've allocated to appear at
 	 * switcher_addr.  map_vm_area() takes the vma we allocated above, the
-	 * kind of pages we're mapping (kernel pages), and a pointer to our
-	 * array of struct pages.
+	 * kind of pages we're mapping (kernel text pages and kernel writable
+	 * pages respectively), and a pointer to our array of struct pages.
 	 */
-	err = map_vm_area(switcher_vma, PAGE_KERNEL_EXEC, lg_switcher_pages);
+	err = map_vm_area(switcher_text_vma, PAGE_KERNEL_RX, lg_switcher_pages);
+	if (err) {
+		printk("lguest: text map_vm_area failed: %i\n", err);
+		goto free_vmas;
+	}
+
+	err = map_vm_area(switcher_stacks_vma, PAGE_KERNEL,
+			  lg_switcher_pages + SWITCHER_TEXT_PAGES);
 	if (err) {
-		printk("lguest: map_vm_area failed: %i\n", err);
-		goto free_vma;
+		printk("lguest: stacks map_vm_area failed: %i\n", err);
+		goto free_vmas;
 	}
 
 	/*
 	 * Now the Switcher is mapped at the right address, we can't fail!
-	 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
 	 */
-	memcpy(switcher_vma->addr, start_switcher_text,
-	       end_switcher_text - start_switcher_text);
-
 	printk(KERN_INFO "lguest: mapped switcher at %p\n",
-	       switcher_vma->addr);
+	       switcher_text_vma->addr);
 	/* And we succeeded... */
 	return 0;
 
-free_vma:
-	vunmap(switcher_vma->addr);
+free_vmas:
+	/* Undoes map_vm_area and __get_vm_area */
+	vunmap(switcher_stacks_vma->addr);
+free_text_vma:
+	vunmap(switcher_text_vma->addr);
 free_pages:
 	i = TOTAL_SWITCHER_PAGES;
 free_some_pages:
@@ -148,7 +175,8 @@ static void unmap_switcher(void)
 	unsigned int i;
 
 	/* vunmap() undoes *both* map_vm_area() and __get_vm_area(). */
-	vunmap(switcher_vma->addr);
+	vunmap(switcher_text_vma->addr);
+	vunmap(switcher_stacks_vma->addr);
 	/* Now we just need to free the pages we copied the switcher into */
 	for (i = 0; i < TOTAL_SWITCHER_PAGES; i++)
 		__free_pages(lg_switcher_pages[i], 0);
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index 048901a1111a..caaec654d7ea 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -582,6 +582,7 @@ static struct of_device_id rackmeter_match[] = {
 	{ .name = "i2s" },
 	{ }
 };
+MODULE_DEVICE_TABLE(of, rackmeter_match);
 
 static struct macio_driver rackmeter_driver = {
 	.driver = {
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index f9512bfa6c3c..01ee736fe0ef 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -425,8 +425,9 @@ static int __init via_pmu_start(void)
 			gpio_irq = irq_of_parse_and_map(gpio_node, 0);
 
 		if (gpio_irq != NO_IRQ) {
-			if (request_irq(gpio_irq, gpio1_interrupt, IRQF_TIMER,
-					"GPIO1 ADB", (void *)0))
+			if (request_irq(gpio_irq, gpio1_interrupt,
+					IRQF_NO_SUSPEND, "GPIO1 ADB",
+					(void *)0))
 				printk(KERN_ERR "pmu: can't get irq %d"
 				       " (GPIO1)\n", gpio_irq);
 			else
diff --git a/drivers/mailbox/mailbox-sti.c b/drivers/mailbox/mailbox-sti.c
index 4835817c5365..2394cfe892b6 100644
--- a/drivers/mailbox/mailbox-sti.c
+++ b/drivers/mailbox/mailbox-sti.c
@@ -384,7 +384,7 @@ static struct mbox_chan *sti_mbox_xlate(struct mbox_controller *mbox,
 	return chan;
 }
 
-static struct mbox_chan_ops sti_mbox_ops = {
+static const struct mbox_chan_ops sti_mbox_ops = {
 	.startup	= sti_mbox_startup_chan,
 	.shutdown	= sti_mbox_shutdown_chan,
 	.send_data	= sti_mbox_send_data,
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index d6a1126d85ce..0ded8e97751d 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -48,13 +48,29 @@ struct resync_info {
 #define		MD_CLUSTER_SUSPEND_READ_BALANCING	2
 #define		MD_CLUSTER_BEGIN_JOIN_CLUSTER		3
 
+/* Lock the send communication. This is done through
+ * bit manipulation as opposed to a mutex in order to
+ * accomodate lock and hold. See next comment.
+ */
+#define		MD_CLUSTER_SEND_LOCK			4
+/* If cluster operations (such as adding a disk) must lock the
+ * communication channel, so as to perform extra operations
+ * (update metadata) and no other operation is allowed on the
+ * MD. Token needs to be locked and held until the operation
+ * completes witha md_update_sb(), which would eventually release
+ * the lock.
+ */
+#define		MD_CLUSTER_SEND_LOCKED_ALREADY		5
+
 
 struct md_cluster_info {
 	/* dlm lock space and resources for clustered raid. */
 	dlm_lockspace_t *lockspace;
 	int slot_number;
 	struct completion completion;
+	struct mutex recv_mutex;
 	struct dlm_lock_resource *bitmap_lockres;
+	struct dlm_lock_resource **other_bitmap_lockres;
 	struct dlm_lock_resource *resync_lockres;
 	struct list_head suspend_list;
 	spinlock_t suspend_lock;
@@ -67,6 +83,7 @@ struct md_cluster_info {
 	struct dlm_lock_resource *no_new_dev_lockres;
 	struct md_thread *recv_thread;
 	struct completion newdisk_completion;
+	wait_queue_head_t wait;
 	unsigned long state;
 };
 
@@ -431,8 +448,10 @@ static void process_add_new_disk(struct mddev *mddev, struct cluster_msg *cmsg)
 static void process_metadata_update(struct mddev *mddev, struct cluster_msg *msg)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
-	md_reload_sb(mddev, le32_to_cpu(msg->raid_slot));
+	mddev->good_device_nr = le32_to_cpu(msg->raid_slot);
+	set_bit(MD_RELOAD_SB, &mddev->flags);
 	dlm_lock_sync(cinfo->no_new_dev_lockres, DLM_LOCK_CR);
+	md_wakeup_thread(mddev->thread);
 }
 
 static void process_remove_disk(struct mddev *mddev, struct cluster_msg *msg)
@@ -440,8 +459,11 @@ static void process_remove_disk(struct mddev *mddev, struct cluster_msg *msg)
 	struct md_rdev *rdev = md_find_rdev_nr_rcu(mddev,
 						   le32_to_cpu(msg->raid_slot));
 
-	if (rdev)
-		md_kick_rdev_from_array(rdev);
+	if (rdev) {
+		set_bit(ClusterRemove, &rdev->flags);
+		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+		md_wakeup_thread(mddev->thread);
+	}
 	else
 		pr_warn("%s: %d Could not find disk(%d) to REMOVE\n",
 			__func__, __LINE__, le32_to_cpu(msg->raid_slot));
@@ -502,9 +524,11 @@ static void recv_daemon(struct md_thread *thread)
 	struct cluster_msg msg;
 	int ret;
 
+	mutex_lock(&cinfo->recv_mutex);
 	/*get CR on Message*/
 	if (dlm_lock_sync(message_lockres, DLM_LOCK_CR)) {
 		pr_err("md/raid1:failed to get CR on MESSAGE\n");
+		mutex_unlock(&cinfo->recv_mutex);
 		return;
 	}
 
@@ -528,33 +552,45 @@ static void recv_daemon(struct md_thread *thread)
 	ret = dlm_unlock_sync(message_lockres);
 	if (unlikely(ret != 0))
 		pr_info("unlock msg failed return %d\n", ret);
+	mutex_unlock(&cinfo->recv_mutex);
 }
 
-/* lock_comm()
+/* lock_token()
  * Takes the lock on the TOKEN lock resource so no other
  * node can communicate while the operation is underway.
- * If called again, and the TOKEN lock is alread in EX mode
- * return success. However, care must be taken that unlock_comm()
- * is called only once.
  */
-static int lock_comm(struct md_cluster_info *cinfo)
+static int lock_token(struct md_cluster_info *cinfo)
 {
 	int error;
 
-	if (cinfo->token_lockres->mode == DLM_LOCK_EX)
-		return 0;
-
 	error = dlm_lock_sync(cinfo->token_lockres, DLM_LOCK_EX);
 	if (error)
 		pr_err("md-cluster(%s:%d): failed to get EX on TOKEN (%d)\n",
 				__func__, __LINE__, error);
+
+	/* Lock the receive sequence */
+	mutex_lock(&cinfo->recv_mutex);
 	return error;
 }
 
+/* lock_comm()
+ * Sets the MD_CLUSTER_SEND_LOCK bit to lock the send channel.
+ */
+static int lock_comm(struct md_cluster_info *cinfo)
+{
+	wait_event(cinfo->wait,
+		   !test_and_set_bit(MD_CLUSTER_SEND_LOCK, &cinfo->state));
+
+	return lock_token(cinfo);
+}
+
 static void unlock_comm(struct md_cluster_info *cinfo)
 {
 	WARN_ON(cinfo->token_lockres->mode != DLM_LOCK_EX);
+	mutex_unlock(&cinfo->recv_mutex);
 	dlm_unlock_sync(cinfo->token_lockres);
+	clear_bit(MD_CLUSTER_SEND_LOCK, &cinfo->state);
+	wake_up(&cinfo->wait);
 }
 
 /* __sendmsg()
@@ -707,6 +743,8 @@ static int join(struct mddev *mddev, int nodes)
 	spin_lock_init(&cinfo->suspend_lock);
 	init_completion(&cinfo->completion);
 	set_bit(MD_CLUSTER_BEGIN_JOIN_CLUSTER, &cinfo->state);
+	init_waitqueue_head(&cinfo->wait);
+	mutex_init(&cinfo->recv_mutex);
 
 	mddev->cluster_info = cinfo;
 
@@ -800,6 +838,7 @@ static void resync_bitmap(struct mddev *mddev)
 			__func__, __LINE__, err);
 }
 
+static void unlock_all_bitmaps(struct mddev *mddev);
 static int leave(struct mddev *mddev)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
@@ -820,6 +859,7 @@ static int leave(struct mddev *mddev)
 	lockres_free(cinfo->ack_lockres);
 	lockres_free(cinfo->no_new_dev_lockres);
 	lockres_free(cinfo->bitmap_lockres);
+	unlock_all_bitmaps(mddev);
 	dlm_release_lockspace(cinfo->lockspace, 2);
 	return 0;
 }
@@ -835,9 +875,25 @@ static int slot_number(struct mddev *mddev)
 	return cinfo->slot_number - 1;
 }
 
+/*
+ * Check if the communication is already locked, else lock the communication
+ * channel.
+ * If it is already locked, token is in EX mode, and hence lock_token()
+ * should not be called.
+ */
 static int metadata_update_start(struct mddev *mddev)
 {
-	return lock_comm(mddev->cluster_info);
+	struct md_cluster_info *cinfo = mddev->cluster_info;
+
+	wait_event(cinfo->wait,
+		   !test_and_set_bit(MD_CLUSTER_SEND_LOCK, &cinfo->state) ||
+		   test_and_clear_bit(MD_CLUSTER_SEND_LOCKED_ALREADY, &cinfo->state));
+
+	/* If token is already locked, return 0 */
+	if (cinfo->token_lockres->mode == DLM_LOCK_EX)
+		return 0;
+
+	return lock_token(cinfo);
 }
 
 static int metadata_update_finish(struct mddev *mddev)
@@ -862,6 +918,7 @@ static int metadata_update_finish(struct mddev *mddev)
 		ret = __sendmsg(cinfo, &cmsg);
 	} else
 		pr_warn("md-cluster: No good device id found to send\n");
+	clear_bit(MD_CLUSTER_SEND_LOCKED_ALREADY, &cinfo->state);
 	unlock_comm(cinfo);
 	return ret;
 }
@@ -869,6 +926,7 @@ static int metadata_update_finish(struct mddev *mddev)
 static void metadata_update_cancel(struct mddev *mddev)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
+	clear_bit(MD_CLUSTER_SEND_LOCKED_ALREADY, &cinfo->state);
 	unlock_comm(cinfo);
 }
 
@@ -882,8 +940,16 @@ static int resync_start(struct mddev *mddev)
 static int resync_info_update(struct mddev *mddev, sector_t lo, sector_t hi)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
+	struct resync_info ri;
 	struct cluster_msg cmsg = {0};
 
+	/* do not send zero again, if we have sent before */
+	if (hi == 0) {
+		memcpy(&ri, cinfo->bitmap_lockres->lksb.sb_lvbptr, sizeof(struct resync_info));
+		if (le64_to_cpu(ri.hi) == 0)
+			return 0;
+	}
+
 	add_resync_info(cinfo->bitmap_lockres, lo, hi);
 	/* Re-acquire the lock to refresh LVB */
 	dlm_lock_sync(cinfo->bitmap_lockres, DLM_LOCK_PW);
@@ -954,14 +1020,30 @@ static int add_new_disk(struct mddev *mddev, struct md_rdev *rdev)
 		ret = -ENOENT;
 	if (ret)
 		unlock_comm(cinfo);
-	else
+	else {
 		dlm_lock_sync(cinfo->no_new_dev_lockres, DLM_LOCK_CR);
+		/* Since MD_CHANGE_DEVS will be set in add_bound_rdev which
+		 * will run soon after add_new_disk, the below path will be
+		 * invoked:
+		 *   md_wakeup_thread(mddev->thread)
+		 *	-> conf->thread (raid1d)
+		 *	-> md_check_recovery -> md_update_sb
+		 *	-> metadata_update_start/finish
+		 * MD_CLUSTER_SEND_LOCKED_ALREADY will be cleared eventually.
+		 *
+		 * For other failure cases, metadata_update_cancel and
+		 * add_new_disk_cancel also clear below bit as well.
+		 * */
+		set_bit(MD_CLUSTER_SEND_LOCKED_ALREADY, &cinfo->state);
+		wake_up(&cinfo->wait);
+	}
 	return ret;
 }
 
 static void add_new_disk_cancel(struct mddev *mddev)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
+	clear_bit(MD_CLUSTER_SEND_LOCKED_ALREADY, &cinfo->state);
 	unlock_comm(cinfo);
 }
 
@@ -986,7 +1068,59 @@ static int remove_disk(struct mddev *mddev, struct md_rdev *rdev)
 	struct md_cluster_info *cinfo = mddev->cluster_info;
 	cmsg.type = cpu_to_le32(REMOVE);
 	cmsg.raid_slot = cpu_to_le32(rdev->desc_nr);
-	return __sendmsg(cinfo, &cmsg);
+	return sendmsg(cinfo, &cmsg);
+}
+
+static int lock_all_bitmaps(struct mddev *mddev)
+{
+	int slot, my_slot, ret, held = 1, i = 0;
+	char str[64];
+	struct md_cluster_info *cinfo = mddev->cluster_info;
+
+	cinfo->other_bitmap_lockres = kzalloc((mddev->bitmap_info.nodes - 1) *
+					     sizeof(struct dlm_lock_resource *),
+					     GFP_KERNEL);
+	if (!cinfo->other_bitmap_lockres) {
+		pr_err("md: can't alloc mem for other bitmap locks\n");
+		return 0;
+	}
+
+	my_slot = slot_number(mddev);
+	for (slot = 0; slot < mddev->bitmap_info.nodes; slot++) {
+		if (slot == my_slot)
+			continue;
+
+		memset(str, '\0', 64);
+		snprintf(str, 64, "bitmap%04d", slot);
+		cinfo->other_bitmap_lockres[i] = lockres_init(mddev, str, NULL, 1);
+		if (!cinfo->other_bitmap_lockres[i])
+			return -ENOMEM;
+
+		cinfo->other_bitmap_lockres[i]->flags |= DLM_LKF_NOQUEUE;
+		ret = dlm_lock_sync(cinfo->other_bitmap_lockres[i], DLM_LOCK_PW);
+		if (ret)
+			held = -1;
+		i++;
+	}
+
+	return held;
+}
+
+static void unlock_all_bitmaps(struct mddev *mddev)
+{
+	struct md_cluster_info *cinfo = mddev->cluster_info;
+	int i;
+
+	/* release other node's bitmap lock if they are existed */
+	if (cinfo->other_bitmap_lockres) {
+		for (i = 0; i < mddev->bitmap_info.nodes - 1; i++) {
+			if (cinfo->other_bitmap_lockres[i]) {
+				dlm_unlock_sync(cinfo->other_bitmap_lockres[i]);
+				lockres_free(cinfo->other_bitmap_lockres[i]);
+			}
+		}
+		kfree(cinfo->other_bitmap_lockres);
+	}
 }
 
 static int gather_bitmaps(struct md_rdev *rdev)
@@ -1034,6 +1168,8 @@ static struct md_cluster_operations cluster_ops = {
 	.new_disk_ack = new_disk_ack,
 	.remove_disk = remove_disk,
 	.gather_bitmaps = gather_bitmaps,
+	.lock_all_bitmaps = lock_all_bitmaps,
+	.unlock_all_bitmaps = unlock_all_bitmaps,
 };
 
 static int __init cluster_init(void)
diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h
index e75ea2613184..45ce6c97d8bd 100644
--- a/drivers/md/md-cluster.h
+++ b/drivers/md/md-cluster.h
@@ -24,6 +24,8 @@ struct md_cluster_operations {
 	int (*new_disk_ack)(struct mddev *mddev, bool ack);
 	int (*remove_disk)(struct mddev *mddev, struct md_rdev *rdev);
 	int (*gather_bitmaps)(struct md_rdev *rdev);
+	int (*lock_all_bitmaps)(struct mddev *mddev);
+	void (*unlock_all_bitmaps)(struct mddev *mddev);
 };
 
 #endif /* _MD_CLUSTER_H */
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 61aacab424cf..e55e6cf9ec17 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -34,6 +34,7 @@
 
 #include <linux/kthread.h>
 #include <linux/blkdev.h>
+#include <linux/badblocks.h>
 #include <linux/sysctl.h>
 #include <linux/seq_file.h>
 #include <linux/fs.h>
@@ -205,15 +206,6 @@ void md_new_event(struct mddev *mddev)
 }
 EXPORT_SYMBOL_GPL(md_new_event);
 
-/* Alternate version that can be called from interrupts
- * when calling sysfs_notify isn't needed.
- */
-static void md_new_event_inintr(struct mddev *mddev)
-{
-	atomic_inc(&md_event_count);
-	wake_up(&md_event_waiters);
-}
-
 /*
  * Enables to iterate over all existing md arrays
  * all_mddevs_lock protects this list.
@@ -259,8 +251,7 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
 
 	blk_queue_split(q, &bio, q->bio_split);
 
-	if (mddev == NULL || mddev->pers == NULL
-	    || !mddev->ready) {
+	if (mddev == NULL || mddev->pers == NULL) {
 		bio_io_error(bio);
 		return BLK_QC_T_NONE;
 	}
@@ -710,8 +701,7 @@ void md_rdev_clear(struct md_rdev *rdev)
 		put_page(rdev->bb_page);
 		rdev->bb_page = NULL;
 	}
-	kfree(rdev->badblocks.page);
-	rdev->badblocks.page = NULL;
+	badblocks_exit(&rdev->badblocks);
 }
 EXPORT_SYMBOL_GPL(md_rdev_clear);
 
@@ -1026,8 +1016,9 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor
 	 * (not needed for Linear and RAID0 as metadata doesn't
 	 * record this size)
 	 */
-	if (rdev->sectors >= (2ULL << 32) && sb->level >= 1)
-		rdev->sectors = (2ULL << 32) - 2;
+	if (IS_ENABLED(CONFIG_LBDAF) && (u64)rdev->sectors >= (2ULL << 32) &&
+	    sb->level >= 1)
+		rdev->sectors = (sector_t)(2ULL << 32) - 2;
 
 	if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >= 1)
 		/* "this cannot possibly happen" ... */
@@ -1199,13 +1190,13 @@ static void super_90_sync(struct mddev *mddev, struct md_rdev *rdev)
 	memcpy(&sb->set_uuid2, mddev->uuid+8, 4);
 	memcpy(&sb->set_uuid3, mddev->uuid+12,4);
 
-	sb->ctime = mddev->ctime;
+	sb->ctime = clamp_t(time64_t, mddev->ctime, 0, U32_MAX);
 	sb->level = mddev->level;
 	sb->size = mddev->dev_sectors / 2;
 	sb->raid_disks = mddev->raid_disks;
 	sb->md_minor = mddev->md_minor;
 	sb->not_persistent = 0;
-	sb->utime = mddev->utime;
+	sb->utime = clamp_t(time64_t, mddev->utime, 0, U32_MAX);
 	sb->state = 0;
 	sb->events_hi = (mddev->events>>32);
 	sb->events_lo = (u32)mddev->events;
@@ -1320,8 +1311,9 @@ super_90_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors)
 	/* Limit to 4TB as metadata cannot record more than that.
 	 * 4TB == 2^32 KB, or 2*2^32 sectors.
 	 */
-	if (num_sectors >= (2ULL << 32) && rdev->mddev->level >= 1)
-		num_sectors = (2ULL << 32) - 2;
+	if (IS_ENABLED(CONFIG_LBDAF) && (u64)num_sectors >= (2ULL << 32) &&
+	    rdev->mddev->level >= 1)
+		num_sectors = (sector_t)(2ULL << 32) - 2;
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
 	md_super_wait(rdev->mddev);
@@ -1361,8 +1353,6 @@ static __le32 calc_sb_1_csum(struct mdp_superblock_1 *sb)
 	return cpu_to_le32(csum);
 }
 
-static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors,
-			    int acknowledged);
 static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_version)
 {
 	struct mdp_superblock_1 *sb;
@@ -1487,8 +1477,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
 			count <<= sb->bblog_shift;
 			if (bb + 1 == 0)
 				break;
-			if (md_set_badblocks(&rdev->badblocks,
-					     sector, count, 1) == 0)
+			if (badblocks_set(&rdev->badblocks, sector, count, 1))
 				return -EINVAL;
 		}
 	} else if (sb->bblog_offset != 0)
@@ -1545,8 +1534,8 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
 		mddev->patch_version = 0;
 		mddev->external = 0;
 		mddev->chunk_sectors = le32_to_cpu(sb->chunksize);
-		mddev->ctime = le64_to_cpu(sb->ctime) & ((1ULL << 32)-1);
-		mddev->utime = le64_to_cpu(sb->utime) & ((1ULL << 32)-1);
+		mddev->ctime = le64_to_cpu(sb->ctime);
+		mddev->utime = le64_to_cpu(sb->utime);
 		mddev->level = le32_to_cpu(sb->level);
 		mddev->clevel[0] = 0;
 		mddev->layout = le32_to_cpu(sb->layout);
@@ -1605,6 +1594,11 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
 			mddev->new_chunk_sectors = mddev->chunk_sectors;
 		}
 
+		if (le32_to_cpu(sb->feature_map) & MD_FEATURE_JOURNAL) {
+			set_bit(MD_HAS_JOURNAL, &mddev->flags);
+			if (mddev->recovery_cp == MaxSector)
+				set_bit(MD_JOURNAL_CLEAN, &mddev->flags);
+		}
 	} else if (mddev->pers == NULL) {
 		/* Insist of good event counter while assembling, except for
 		 * spares (which don't need an event count) */
@@ -1651,8 +1645,6 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
 			}
 			set_bit(Journal, &rdev->flags);
 			rdev->journal_tail = le64_to_cpu(sb->journal_tail);
-			if (mddev->recovery_cp == MaxSector)
-				set_bit(MD_JOURNAL_CLEAN, &mddev->flags);
 			rdev->raid_disk = 0;
 			break;
 		default:
@@ -1672,8 +1664,6 @@ static int super_1_validate(struct mddev *mddev, struct md_rdev *rdev)
 			set_bit(WriteMostly, &rdev->flags);
 		if (le32_to_cpu(sb->feature_map) & MD_FEATURE_REPLACEMENT)
 			set_bit(Replacement, &rdev->flags);
-		if (le32_to_cpu(sb->feature_map) & MD_FEATURE_JOURNAL)
-			set_bit(MD_HAS_JOURNAL, &mddev->flags);
 	} else /* MULTIPATH are always insync */
 		set_bit(In_sync, &rdev->flags);
 
@@ -2017,28 +2007,32 @@ int md_integrity_register(struct mddev *mddev)
 }
 EXPORT_SYMBOL(md_integrity_register);
 
-/* Disable data integrity if non-capable/non-matching disk is being added */
-void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
+/*
+ * Attempt to add an rdev, but only if it is consistent with the current
+ * integrity profile
+ */
+int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
 {
 	struct blk_integrity *bi_rdev;
 	struct blk_integrity *bi_mddev;
+	char name[BDEVNAME_SIZE];
 
 	if (!mddev->gendisk)
-		return;
+		return 0;
 
 	bi_rdev = bdev_get_integrity(rdev->bdev);
 	bi_mddev = blk_get_integrity(mddev->gendisk);
 
 	if (!bi_mddev) /* nothing to do */
-		return;
-	if (rdev->raid_disk < 0) /* skip spares */
-		return;
-	if (bi_rdev && blk_integrity_compare(mddev->gendisk,
-					     rdev->bdev->bd_disk) >= 0)
-		return;
-	WARN_ON_ONCE(!mddev->suspended);
-	printk(KERN_NOTICE "disabling data integrity on %s\n", mdname(mddev));
-	blk_integrity_unregister(mddev->gendisk);
+		return 0;
+
+	if (blk_integrity_compare(mddev->gendisk, rdev->bdev->bd_disk) != 0) {
+		printk(KERN_NOTICE "%s: incompatible integrity profile for %s\n",
+				mdname(mddev), bdevname(rdev->bdev, name));
+		return -ENXIO;
+	}
+
+	return 0;
 }
 EXPORT_SYMBOL(md_integrity_add_rdev);
 
@@ -2053,8 +2047,9 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
 		return -EEXIST;
 
 	/* make sure rdev->sectors exceeds mddev->dev_sectors */
-	if (rdev->sectors && (mddev->dev_sectors == 0 ||
-			rdev->sectors < mddev->dev_sectors)) {
+	if (!test_bit(Journal, &rdev->flags) &&
+	    rdev->sectors &&
+	    (mddev->dev_sectors == 0 || rdev->sectors < mddev->dev_sectors)) {
 		if (mddev->pers) {
 			/* Cannot change size, so fail
 			 * If mddev->level <= 0, then we don't care
@@ -2085,7 +2080,8 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
 		}
 	}
 	rcu_read_unlock();
-	if (mddev->max_disks && rdev->desc_nr >= mddev->max_disks) {
+	if (!test_bit(Journal, &rdev->flags) &&
+	    mddev->max_disks && rdev->desc_nr >= mddev->max_disks) {
 		printk(KERN_WARNING "md: %s: array is limited to %d devices\n",
 		       mdname(mddev), mddev->max_disks);
 		return -EBUSY;
@@ -2320,7 +2316,7 @@ repeat:
 			rdev_for_each(rdev, mddev) {
 				if (rdev->badblocks.changed) {
 					rdev->badblocks.changed = 0;
-					md_ack_all_badblocks(&rdev->badblocks);
+					ack_all_badblocks(&rdev->badblocks);
 					md_error(mddev, rdev);
 				}
 				clear_bit(Blocked, &rdev->flags);
@@ -2334,7 +2330,7 @@ repeat:
 
 	spin_lock(&mddev->lock);
 
-	mddev->utime = get_seconds();
+	mddev->utime = ktime_get_real_seconds();
 
 	if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
 		force_change = 1;
@@ -2446,7 +2442,7 @@ repeat:
 			clear_bit(Blocked, &rdev->flags);
 
 		if (any_badblocks_changed)
-			md_ack_all_badblocks(&rdev->badblocks);
+			ack_all_badblocks(&rdev->badblocks);
 		clear_bit(BlockedBadBlocks, &rdev->flags);
 		wake_up(&rdev->blocked_wait);
 	}
@@ -2460,15 +2456,20 @@ static int add_bound_rdev(struct md_rdev *rdev)
 {
 	struct mddev *mddev = rdev->mddev;
 	int err = 0;
+	bool add_journal = test_bit(Journal, &rdev->flags);
 
-	if (!mddev->pers->hot_remove_disk) {
+	if (!mddev->pers->hot_remove_disk || add_journal) {
 		/* If there is hot_add_disk but no hot_remove_disk
 		 * then added disks for geometry changes,
 		 * and should be added immediately.
 		 */
 		super_types[mddev->major_version].
 			validate_super(mddev, rdev);
+		if (add_journal)
+			mddev_suspend(mddev);
 		err = mddev->pers->hot_add_disk(mddev, rdev);
+		if (add_journal)
+			mddev_resume(mddev);
 		if (err) {
 			unbind_rdev_from_array(rdev);
 			export_rdev(rdev);
@@ -3054,11 +3055,17 @@ static ssize_t recovery_start_store(struct md_rdev *rdev, const char *buf, size_
 static struct rdev_sysfs_entry rdev_recovery_start =
 __ATTR(recovery_start, S_IRUGO|S_IWUSR, recovery_start_show, recovery_start_store);
 
-static ssize_t
-badblocks_show(struct badblocks *bb, char *page, int unack);
-static ssize_t
-badblocks_store(struct badblocks *bb, const char *page, size_t len, int unack);
-
+/* sysfs access to bad-blocks list.
+ * We present two files.
+ * 'bad-blocks' lists sector numbers and lengths of ranges that
+ *    are recorded as bad.  The list is truncated to fit within
+ *    the one-page limit of sysfs.
+ *    Writing "sector length" to this file adds an acknowledged
+ *    bad block list.
+ * 'unacknowledged-bad-blocks' lists bad blocks that have not yet
+ *    been acknowledged.  Writing to this file adds bad blocks
+ *    without acknowledging them.  This is largely for testing.
+ */
 static ssize_t bb_show(struct md_rdev *rdev, char *page)
 {
 	return badblocks_show(&rdev->badblocks, page, 0);
@@ -3173,14 +3180,7 @@ int md_rdev_init(struct md_rdev *rdev)
 	 * This reserves the space even on arrays where it cannot
 	 * be used - I wonder if that matters
 	 */
-	rdev->badblocks.count = 0;
-	rdev->badblocks.shift = -1; /* disabled until explicitly enabled */
-	rdev->badblocks.page = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	seqlock_init(&rdev->badblocks.lock);
-	if (rdev->badblocks.page == NULL)
-		return -ENOMEM;
-
-	return 0;
+	return badblocks_init(&rdev->badblocks, 0);
 }
 EXPORT_SYMBOL_GPL(md_rdev_init);
 /*
@@ -5303,7 +5303,6 @@ int md_run(struct mddev *mddev)
 	smp_wmb();
 	spin_lock(&mddev->lock);
 	mddev->pers = pers;
-	mddev->ready = 1;
 	spin_unlock(&mddev->lock);
 	rdev_for_each(rdev, mddev)
 		if (rdev->raid_disk >= 0)
@@ -5503,7 +5502,6 @@ static void __md_stop(struct mddev *mddev)
 	/* Ensure ->event_work is done */
 	flush_workqueue(md_misc_wq);
 	spin_lock(&mddev->lock);
-	mddev->ready = 0;
 	mddev->pers = NULL;
 	spin_unlock(&mddev->lock);
 	pers->free(mddev, mddev->private);
@@ -5841,7 +5839,7 @@ static int get_array_info(struct mddev *mddev, void __user *arg)
 	info.major_version = mddev->major_version;
 	info.minor_version = mddev->minor_version;
 	info.patch_version = MD_PATCHLEVEL_VERSION;
-	info.ctime         = mddev->ctime;
+	info.ctime         = clamp_t(time64_t, mddev->ctime, 0, U32_MAX);
 	info.level         = mddev->level;
 	info.size          = mddev->dev_sectors / 2;
 	if (info.size != mddev->dev_sectors / 2) /* overflow */
@@ -5851,7 +5849,7 @@ static int get_array_info(struct mddev *mddev, void __user *arg)
 	info.md_minor      = mddev->md_minor;
 	info.not_persistent= !mddev->persistent;
 
-	info.utime         = mddev->utime;
+	info.utime         = clamp_t(time64_t, mddev->utime, 0, U32_MAX);
 	info.state         = 0;
 	if (mddev->in_sync)
 		info.state = (1<<MD_SB_CLEAN);
@@ -6042,8 +6040,23 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
 		else
 			clear_bit(WriteMostly, &rdev->flags);
 
-		if (info->state & (1<<MD_DISK_JOURNAL))
+		if (info->state & (1<<MD_DISK_JOURNAL)) {
+			struct md_rdev *rdev2;
+			bool has_journal = false;
+
+			/* make sure no existing journal disk */
+			rdev_for_each(rdev2, mddev) {
+				if (test_bit(Journal, &rdev2->flags)) {
+					has_journal = true;
+					break;
+				}
+			}
+			if (has_journal) {
+				export_rdev(rdev);
+				return -EBUSY;
+			}
 			set_bit(Journal, &rdev->flags);
+		}
 		/*
 		 * check whether the device shows up in other nodes
 		 */
@@ -6134,15 +6147,11 @@ static int hot_remove_disk(struct mddev *mddev, dev_t dev)
 {
 	char b[BDEVNAME_SIZE];
 	struct md_rdev *rdev;
-	int ret = -1;
 
 	rdev = find_rdev(mddev, dev);
 	if (!rdev)
 		return -ENXIO;
 
-	if (mddev_is_clustered(mddev))
-		ret = md_cluster_ops->metadata_update_start(mddev);
-
 	if (rdev->raid_disk < 0)
 		goto kick_rdev;
 
@@ -6153,7 +6162,7 @@ static int hot_remove_disk(struct mddev *mddev, dev_t dev)
 		goto busy;
 
 kick_rdev:
-	if (mddev_is_clustered(mddev) && ret == 0)
+	if (mddev_is_clustered(mddev))
 		md_cluster_ops->remove_disk(mddev, rdev);
 
 	md_kick_rdev_from_array(rdev);
@@ -6162,9 +6171,6 @@ kick_rdev:
 
 	return 0;
 busy:
-	if (mddev_is_clustered(mddev) && ret == 0)
-		md_cluster_ops->metadata_update_cancel(mddev);
-
 	printk(KERN_WARNING "md: cannot remove active disk %s from %s ...\n",
 		bdevname(rdev->bdev,b), mdname(mddev));
 	return -EBUSY;
@@ -6358,13 +6364,13 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
 		/* ensure mddev_put doesn't delete this now that there
 		 * is some minimal configuration.
 		 */
-		mddev->ctime         = get_seconds();
+		mddev->ctime         = ktime_get_real_seconds();
 		return 0;
 	}
 	mddev->major_version = MD_MAJOR_VERSION;
 	mddev->minor_version = MD_MINOR_VERSION;
 	mddev->patch_version = MD_PATCHLEVEL_VERSION;
-	mddev->ctime         = get_seconds();
+	mddev->ctime         = ktime_get_real_seconds();
 
 	mddev->level         = info->level;
 	mddev->clevel[0]     = 0;
@@ -6606,6 +6612,19 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				rv = -EINVAL;
 				goto err;
 			}
+			if (mddev->bitmap_info.nodes) {
+				/* hold PW on all the bitmap lock */
+				if (md_cluster_ops->lock_all_bitmaps(mddev) <= 0) {
+					printk("md: can't change bitmap to none since the"
+					       " array is in use by more than one node\n");
+					rv = -EPERM;
+					md_cluster_ops->unlock_all_bitmaps(mddev);
+					goto err;
+				}
+
+				mddev->bitmap_info.nodes = 0;
+				md_cluster_ops->leave(mddev);
+			}
 			mddev->pers->quiesce(mddev, 1);
 			bitmap_destroy(mddev);
 			mddev->pers->quiesce(mddev, 0);
@@ -7184,7 +7203,7 @@ void md_error(struct mddev *mddev, struct md_rdev *rdev)
 	md_wakeup_thread(mddev->thread);
 	if (mddev->event_work.func)
 		queue_work(md_misc_wq, &mddev->event_work);
-	md_new_event_inintr(mddev);
+	md_new_event(mddev);
 }
 EXPORT_SYMBOL(md_error);
 
@@ -7708,7 +7727,7 @@ EXPORT_SYMBOL(md_write_end);
  * attempting a GFP_KERNEL allocation while holding the mddev lock.
  * Must be called with mddev_lock held.
  *
- * In the ->external case MD_CHANGE_CLEAN can not be cleared until mddev->lock
+ * In the ->external case MD_CHANGE_PENDING can not be cleared until mddev->lock
  * is dropped, so return -EAGAIN after notifying userspace.
  */
 int md_allow_write(struct mddev *mddev)
@@ -8173,19 +8192,20 @@ static int remove_and_add_spares(struct mddev *mddev,
 			continue;
 		if (test_bit(Faulty, &rdev->flags))
 			continue;
-		if (test_bit(Journal, &rdev->flags))
-			continue;
-		if (mddev->ro &&
-		    ! (rdev->saved_raid_disk >= 0 &&
-		       !test_bit(Bitmap_sync, &rdev->flags)))
-			continue;
+		if (!test_bit(Journal, &rdev->flags)) {
+			if (mddev->ro &&
+			    ! (rdev->saved_raid_disk >= 0 &&
+			       !test_bit(Bitmap_sync, &rdev->flags)))
+				continue;
 
-		rdev->recovery_offset = 0;
+			rdev->recovery_offset = 0;
+		}
 		if (mddev->pers->
 		    hot_add_disk(mddev, rdev) == 0) {
 			if (sysfs_link_rdev(mddev, rdev))
 				/* failure here is OK */;
-			spares++;
+			if (!test_bit(Journal, &rdev->flags))
+				spares++;
 			md_new_event(mddev);
 			set_bit(MD_CHANGE_DEVS, &mddev->flags);
 		}
@@ -8280,6 +8300,7 @@ void md_check_recovery(struct mddev *mddev)
 		(mddev->flags & MD_UPDATE_SB_FLAGS & ~ (1<<MD_CHANGE_PENDING)) ||
 		test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) ||
 		test_bit(MD_RECOVERY_DONE, &mddev->recovery) ||
+		test_bit(MD_RELOAD_SB, &mddev->flags) ||
 		(mddev->external == 0 && mddev->safemode == 1) ||
 		(mddev->safemode == 2 && ! atomic_read(&mddev->writes_pending)
 		 && !mddev->in_sync && mddev->recovery_cp == MaxSector)
@@ -8318,6 +8339,21 @@ void md_check_recovery(struct mddev *mddev)
 			goto unlock;
 		}
 
+		if (mddev_is_clustered(mddev)) {
+			struct md_rdev *rdev;
+			/* kick the device if another node issued a
+			 * remove disk.
+			 */
+			rdev_for_each(rdev, mddev) {
+				if (test_and_clear_bit(ClusterRemove, &rdev->flags) &&
+						rdev->raid_disk < 0)
+					md_kick_rdev_from_array(rdev);
+			}
+
+			if (test_and_clear_bit(MD_RELOAD_SB, &mddev->flags))
+				md_reload_sb(mddev, mddev->good_device_nr);
+		}
+
 		if (!mddev->external) {
 			int did_change = 0;
 			spin_lock(&mddev->lock);
@@ -8489,254 +8525,9 @@ void md_finish_reshape(struct mddev *mddev)
 }
 EXPORT_SYMBOL(md_finish_reshape);
 
-/* Bad block management.
- * We can record which blocks on each device are 'bad' and so just
- * fail those blocks, or that stripe, rather than the whole device.
- * Entries in the bad-block table are 64bits wide.  This comprises:
- * Length of bad-range, in sectors: 0-511 for lengths 1-512
- * Start of bad-range, sector offset, 54 bits (allows 8 exbibytes)
- *  A 'shift' can be set so that larger blocks are tracked and
- *  consequently larger devices can be covered.
- * 'Acknowledged' flag - 1 bit. - the most significant bit.
- *
- * Locking of the bad-block table uses a seqlock so md_is_badblock
- * might need to retry if it is very unlucky.
- * We will sometimes want to check for bad blocks in a bi_end_io function,
- * so we use the write_seqlock_irq variant.
- *
- * When looking for a bad block we specify a range and want to
- * know if any block in the range is bad.  So we binary-search
- * to the last range that starts at-or-before the given endpoint,
- * (or "before the sector after the target range")
- * then see if it ends after the given start.
- * We return
- *  0 if there are no known bad blocks in the range
- *  1 if there are known bad block which are all acknowledged
- * -1 if there are bad blocks which have not yet been acknowledged in metadata.
- * plus the start/length of the first bad section we overlap.
- */
-int md_is_badblock(struct badblocks *bb, sector_t s, int sectors,
-		   sector_t *first_bad, int *bad_sectors)
-{
-	int hi;
-	int lo;
-	u64 *p = bb->page;
-	int rv;
-	sector_t target = s + sectors;
-	unsigned seq;
-
-	if (bb->shift > 0) {
-		/* round the start down, and the end up */
-		s >>= bb->shift;
-		target += (1<<bb->shift) - 1;
-		target >>= bb->shift;
-		sectors = target - s;
-	}
-	/* 'target' is now the first block after the bad range */
-
-retry:
-	seq = read_seqbegin(&bb->lock);
-	lo = 0;
-	rv = 0;
-	hi = bb->count;
-
-	/* Binary search between lo and hi for 'target'
-	 * i.e. for the last range that starts before 'target'
-	 */
-	/* INVARIANT: ranges before 'lo' and at-or-after 'hi'
-	 * are known not to be the last range before target.
-	 * VARIANT: hi-lo is the number of possible
-	 * ranges, and decreases until it reaches 1
-	 */
-	while (hi - lo > 1) {
-		int mid = (lo + hi) / 2;
-		sector_t a = BB_OFFSET(p[mid]);
-		if (a < target)
-			/* This could still be the one, earlier ranges
-			 * could not. */
-			lo = mid;
-		else
-			/* This and later ranges are definitely out. */
-			hi = mid;
-	}
-	/* 'lo' might be the last that started before target, but 'hi' isn't */
-	if (hi > lo) {
-		/* need to check all range that end after 's' to see if
-		 * any are unacknowledged.
-		 */
-		while (lo >= 0 &&
-		       BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) {
-			if (BB_OFFSET(p[lo]) < target) {
-				/* starts before the end, and finishes after
-				 * the start, so they must overlap
-				 */
-				if (rv != -1 && BB_ACK(p[lo]))
-					rv = 1;
-				else
-					rv = -1;
-				*first_bad = BB_OFFSET(p[lo]);
-				*bad_sectors = BB_LEN(p[lo]);
-			}
-			lo--;
-		}
-	}
-
-	if (read_seqretry(&bb->lock, seq))
-		goto retry;
-
-	return rv;
-}
-EXPORT_SYMBOL_GPL(md_is_badblock);
-
-/*
- * Add a range of bad blocks to the table.
- * This might extend the table, or might contract it
- * if two adjacent ranges can be merged.
- * We binary-search to find the 'insertion' point, then
- * decide how best to handle it.
- */
-static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors,
-			    int acknowledged)
-{
-	u64 *p;
-	int lo, hi;
-	int rv = 1;
-	unsigned long flags;
-
-	if (bb->shift < 0)
-		/* badblocks are disabled */
-		return 0;
-
-	if (bb->shift) {
-		/* round the start down, and the end up */
-		sector_t next = s + sectors;
-		s >>= bb->shift;
-		next += (1<<bb->shift) - 1;
-		next >>= bb->shift;
-		sectors = next - s;
-	}
-
-	write_seqlock_irqsave(&bb->lock, flags);
-
-	p = bb->page;
-	lo = 0;
-	hi = bb->count;
-	/* Find the last range that starts at-or-before 's' */
-	while (hi - lo > 1) {
-		int mid = (lo + hi) / 2;
-		sector_t a = BB_OFFSET(p[mid]);
-		if (a <= s)
-			lo = mid;
-		else
-			hi = mid;
-	}
-	if (hi > lo && BB_OFFSET(p[lo]) > s)
-		hi = lo;
-
-	if (hi > lo) {
-		/* we found a range that might merge with the start
-		 * of our new range
-		 */
-		sector_t a = BB_OFFSET(p[lo]);
-		sector_t e = a + BB_LEN(p[lo]);
-		int ack = BB_ACK(p[lo]);
-		if (e >= s) {
-			/* Yes, we can merge with a previous range */
-			if (s == a && s + sectors >= e)
-				/* new range covers old */
-				ack = acknowledged;
-			else
-				ack = ack && acknowledged;
-
-			if (e < s + sectors)
-				e = s + sectors;
-			if (e - a <= BB_MAX_LEN) {
-				p[lo] = BB_MAKE(a, e-a, ack);
-				s = e;
-			} else {
-				/* does not all fit in one range,
-				 * make p[lo] maximal
-				 */
-				if (BB_LEN(p[lo]) != BB_MAX_LEN)
-					p[lo] = BB_MAKE(a, BB_MAX_LEN, ack);
-				s = a + BB_MAX_LEN;
-			}
-			sectors = e - s;
-		}
-	}
-	if (sectors && hi < bb->count) {
-		/* 'hi' points to the first range that starts after 's'.
-		 * Maybe we can merge with the start of that range */
-		sector_t a = BB_OFFSET(p[hi]);
-		sector_t e = a + BB_LEN(p[hi]);
-		int ack = BB_ACK(p[hi]);
-		if (a <= s + sectors) {
-			/* merging is possible */
-			if (e <= s + sectors) {
-				/* full overlap */
-				e = s + sectors;
-				ack = acknowledged;
-			} else
-				ack = ack && acknowledged;
-
-			a = s;
-			if (e - a <= BB_MAX_LEN) {
-				p[hi] = BB_MAKE(a, e-a, ack);
-				s = e;
-			} else {
-				p[hi] = BB_MAKE(a, BB_MAX_LEN, ack);
-				s = a + BB_MAX_LEN;
-			}
-			sectors = e - s;
-			lo = hi;
-			hi++;
-		}
-	}
-	if (sectors == 0 && hi < bb->count) {
-		/* we might be able to combine lo and hi */
-		/* Note: 's' is at the end of 'lo' */
-		sector_t a = BB_OFFSET(p[hi]);
-		int lolen = BB_LEN(p[lo]);
-		int hilen = BB_LEN(p[hi]);
-		int newlen = lolen + hilen - (s - a);
-		if (s >= a && newlen < BB_MAX_LEN) {
-			/* yes, we can combine them */
-			int ack = BB_ACK(p[lo]) && BB_ACK(p[hi]);
-			p[lo] = BB_MAKE(BB_OFFSET(p[lo]), newlen, ack);
-			memmove(p + hi, p + hi + 1,
-				(bb->count - hi - 1) * 8);
-			bb->count--;
-		}
-	}
-	while (sectors) {
-		/* didn't merge (it all).
-		 * Need to add a range just before 'hi' */
-		if (bb->count >= MD_MAX_BADBLOCKS) {
-			/* No room for more */
-			rv = 0;
-			break;
-		} else {
-			int this_sectors = sectors;
-			memmove(p + hi + 1, p + hi,
-				(bb->count - hi) * 8);
-			bb->count++;
-
-			if (this_sectors > BB_MAX_LEN)
-				this_sectors = BB_MAX_LEN;
-			p[hi] = BB_MAKE(s, this_sectors, acknowledged);
-			sectors -= this_sectors;
-			s += this_sectors;
-		}
-	}
-
-	bb->changed = 1;
-	if (!acknowledged)
-		bb->unacked_exist = 1;
-	write_sequnlock_irqrestore(&bb->lock, flags);
-
-	return rv;
-}
+/* Bad block management */
 
+/* Returns 1 on success, 0 on failure */
 int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		       int is_new)
 {
@@ -8745,114 +8536,19 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		s += rdev->new_data_offset;
 	else
 		s += rdev->data_offset;
-	rv = md_set_badblocks(&rdev->badblocks,
-			      s, sectors, 0);
-	if (rv) {
+	rv = badblocks_set(&rdev->badblocks, s, sectors, 0);
+	if (rv == 0) {
 		/* Make sure they get written out promptly */
 		sysfs_notify_dirent_safe(rdev->sysfs_state);
 		set_bit(MD_CHANGE_CLEAN, &rdev->mddev->flags);
 		set_bit(MD_CHANGE_PENDING, &rdev->mddev->flags);
 		md_wakeup_thread(rdev->mddev->thread);
-	}
-	return rv;
+		return 1;
+	} else
+		return 0;
 }
 EXPORT_SYMBOL_GPL(rdev_set_badblocks);
 
-/*
- * Remove a range of bad blocks from the table.
- * This may involve extending the table if we spilt a region,
- * but it must not fail.  So if the table becomes full, we just
- * drop the remove request.
- */
-static int md_clear_badblocks(struct badblocks *bb, sector_t s, int sectors)
-{
-	u64 *p;
-	int lo, hi;
-	sector_t target = s + sectors;
-	int rv = 0;
-
-	if (bb->shift > 0) {
-		/* When clearing we round the start up and the end down.
-		 * This should not matter as the shift should align with
-		 * the block size and no rounding should ever be needed.
-		 * However it is better the think a block is bad when it
-		 * isn't than to think a block is not bad when it is.
-		 */
-		s += (1<<bb->shift) - 1;
-		s >>= bb->shift;
-		target >>= bb->shift;
-		sectors = target - s;
-	}
-
-	write_seqlock_irq(&bb->lock);
-
-	p = bb->page;
-	lo = 0;
-	hi = bb->count;
-	/* Find the last range that starts before 'target' */
-	while (hi - lo > 1) {
-		int mid = (lo + hi) / 2;
-		sector_t a = BB_OFFSET(p[mid]);
-		if (a < target)
-			lo = mid;
-		else
-			hi = mid;
-	}
-	if (hi > lo) {
-		/* p[lo] is the last range that could overlap the
-		 * current range.  Earlier ranges could also overlap,
-		 * but only this one can overlap the end of the range.
-		 */
-		if (BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > target) {
-			/* Partial overlap, leave the tail of this range */
-			int ack = BB_ACK(p[lo]);
-			sector_t a = BB_OFFSET(p[lo]);
-			sector_t end = a + BB_LEN(p[lo]);
-
-			if (a < s) {
-				/* we need to split this range */
-				if (bb->count >= MD_MAX_BADBLOCKS) {
-					rv = -ENOSPC;
-					goto out;
-				}
-				memmove(p+lo+1, p+lo, (bb->count - lo) * 8);
-				bb->count++;
-				p[lo] = BB_MAKE(a, s-a, ack);
-				lo++;
-			}
-			p[lo] = BB_MAKE(target, end - target, ack);
-			/* there is no longer an overlap */
-			hi = lo;
-			lo--;
-		}
-		while (lo >= 0 &&
-		       BB_OFFSET(p[lo]) + BB_LEN(p[lo]) > s) {
-			/* This range does overlap */
-			if (BB_OFFSET(p[lo]) < s) {
-				/* Keep the early parts of this range. */
-				int ack = BB_ACK(p[lo]);
-				sector_t start = BB_OFFSET(p[lo]);
-				p[lo] = BB_MAKE(start, s - start, ack);
-				/* now low doesn't overlap, so.. */
-				break;
-			}
-			lo--;
-		}
-		/* 'lo' is strictly before, 'hi' is strictly after,
-		 * anything between needs to be discarded
-		 */
-		if (hi - lo > 1) {
-			memmove(p+lo+1, p+hi, (bb->count - hi) * 8);
-			bb->count -= (hi - lo - 1);
-		}
-	}
-
-	bb->changed = 1;
-out:
-	write_sequnlock_irq(&bb->lock);
-	return rv;
-}
-
 int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 			 int is_new)
 {
@@ -8860,133 +8556,11 @@ int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 		s += rdev->new_data_offset;
 	else
 		s += rdev->data_offset;
-	return md_clear_badblocks(&rdev->badblocks,
+	return badblocks_clear(&rdev->badblocks,
 				  s, sectors);
 }
 EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
 
-/*
- * Acknowledge all bad blocks in a list.
- * This only succeeds if ->changed is clear.  It is used by
- * in-kernel metadata updates
- */
-void md_ack_all_badblocks(struct badblocks *bb)
-{
-	if (bb->page == NULL || bb->changed)
-		/* no point even trying */
-		return;
-	write_seqlock_irq(&bb->lock);
-
-	if (bb->changed == 0 && bb->unacked_exist) {
-		u64 *p = bb->page;
-		int i;
-		for (i = 0; i < bb->count ; i++) {
-			if (!BB_ACK(p[i])) {
-				sector_t start = BB_OFFSET(p[i]);
-				int len = BB_LEN(p[i]);
-				p[i] = BB_MAKE(start, len, 1);
-			}
-		}
-		bb->unacked_exist = 0;
-	}
-	write_sequnlock_irq(&bb->lock);
-}
-EXPORT_SYMBOL_GPL(md_ack_all_badblocks);
-
-/* sysfs access to bad-blocks list.
- * We present two files.
- * 'bad-blocks' lists sector numbers and lengths of ranges that
- *    are recorded as bad.  The list is truncated to fit within
- *    the one-page limit of sysfs.
- *    Writing "sector length" to this file adds an acknowledged
- *    bad block list.
- * 'unacknowledged-bad-blocks' lists bad blocks that have not yet
- *    been acknowledged.  Writing to this file adds bad blocks
- *    without acknowledging them.  This is largely for testing.
- */
-
-static ssize_t
-badblocks_show(struct badblocks *bb, char *page, int unack)
-{
-	size_t len;
-	int i;
-	u64 *p = bb->page;
-	unsigned seq;
-
-	if (bb->shift < 0)
-		return 0;
-
-retry:
-	seq = read_seqbegin(&bb->lock);
-
-	len = 0;
-	i = 0;
-
-	while (len < PAGE_SIZE && i < bb->count) {
-		sector_t s = BB_OFFSET(p[i]);
-		unsigned int length = BB_LEN(p[i]);
-		int ack = BB_ACK(p[i]);
-		i++;
-
-		if (unack && ack)
-			continue;
-
-		len += snprintf(page+len, PAGE_SIZE-len, "%llu %u\n",
-				(unsigned long long)s << bb->shift,
-				length << bb->shift);
-	}
-	if (unack && len == 0)
-		bb->unacked_exist = 0;
-
-	if (read_seqretry(&bb->lock, seq))
-		goto retry;
-
-	return len;
-}
-
-#define DO_DEBUG 1
-
-static ssize_t
-badblocks_store(struct badblocks *bb, const char *page, size_t len, int unack)
-{
-	unsigned long long sector;
-	int length;
-	char newline;
-#ifdef DO_DEBUG
-	/* Allow clearing via sysfs *only* for testing/debugging.
-	 * Normally only a successful write may clear a badblock
-	 */
-	int clear = 0;
-	if (page[0] == '-') {
-		clear = 1;
-		page++;
-	}
-#endif /* DO_DEBUG */
-
-	switch (sscanf(page, "%llu %d%c", &sector, &length, &newline)) {
-	case 3:
-		if (newline != '\n')
-			return -EINVAL;
-	case 2:
-		if (length <= 0)
-			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-#ifdef DO_DEBUG
-	if (clear) {
-		md_clear_badblocks(bb, sector, length);
-		return len;
-	}
-#endif /* DO_DEBUG */
-	if (md_set_badblocks(bb, sector, length, !unack))
-		return len;
-	else
-		return -ENOSPC;
-}
-
 static int md_notify_reboot(struct notifier_block *this,
 			    unsigned long code, void *x)
 {
@@ -9101,7 +8675,6 @@ static void check_sb_changes(struct mddev *mddev, struct md_rdev *rdev)
 				ret = remove_and_add_spares(mddev, rdev2);
 				pr_info("Activated spare: %s\n",
 						bdevname(rdev2->bdev,b));
-				continue;
 			}
 			/* device faulty
 			 * We just want to do the minimum to mark the disk
diff --git a/drivers/md/md.h b/drivers/md/md.h
index ca0b643fe3c1..b5c4be73e6e4 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -17,6 +17,7 @@
 
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
+#include <linux/badblocks.h>
 #include <linux/kobject.h>
 #include <linux/list.h>
 #include <linux/mm.h>
@@ -28,13 +29,6 @@
 
 #define MaxSector (~(sector_t)0)
 
-/* Bad block numbers are stored sorted in a single page.
- * 64bits is used for each block or extent.
- * 54 bits are sector number, 9 bits are extent size,
- * 1 bit is an 'acknowledged' flag.
- */
-#define MD_MAX_BADBLOCKS	(PAGE_SIZE/8)
-
 /*
  * MD's 'extended' device
  */
@@ -117,22 +111,7 @@ struct md_rdev {
 	struct kernfs_node *sysfs_state; /* handle for 'state'
 					   * sysfs entry */
 
-	struct badblocks {
-		int	count;		/* count of bad blocks */
-		int	unacked_exist;	/* there probably are unacknowledged
-					 * bad blocks.  This is only cleared
-					 * when a read discovers none
-					 */
-		int	shift;		/* shift from sectors to block size
-					 * a -ve shift means badblocks are
-					 * disabled.*/
-		u64	*page;		/* badblock list */
-		int	changed;
-		seqlock_t lock;
-
-		sector_t sector;
-		sector_t size;		/* in sectors */
-	} badblocks;
+	struct badblocks badblocks;
 };
 enum flag_bits {
 	Faulty,			/* device is known to have a fault */
@@ -183,24 +162,14 @@ enum flag_bits {
 				 * Usually, this device should be faster
 				 * than other devices in the array
 				 */
+	ClusterRemove,
 };
 
-#define BB_LEN_MASK	(0x00000000000001FFULL)
-#define BB_OFFSET_MASK	(0x7FFFFFFFFFFFFE00ULL)
-#define BB_ACK_MASK	(0x8000000000000000ULL)
-#define BB_MAX_LEN	512
-#define BB_OFFSET(x)	(((x) & BB_OFFSET_MASK) >> 9)
-#define BB_LEN(x)	(((x) & BB_LEN_MASK) + 1)
-#define BB_ACK(x)	(!!((x) & BB_ACK_MASK))
-#define BB_MAKE(a, l, ack) (((a)<<9) | ((l)-1) | ((u64)(!!(ack)) << 63))
-
-extern int md_is_badblock(struct badblocks *bb, sector_t s, int sectors,
-			  sector_t *first_bad, int *bad_sectors);
 static inline int is_badblock(struct md_rdev *rdev, sector_t s, int sectors,
 			      sector_t *first_bad, int *bad_sectors)
 {
 	if (unlikely(rdev->badblocks.count)) {
-		int rv = md_is_badblock(&rdev->badblocks, rdev->data_offset + s,
+		int rv = badblocks_check(&rdev->badblocks, rdev->data_offset + s,
 					sectors,
 					first_bad, bad_sectors);
 		if (rv)
@@ -213,8 +182,6 @@ extern int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 			      int is_new);
 extern int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 				int is_new);
-extern void md_ack_all_badblocks(struct badblocks *bb);
-
 struct md_cluster_info;
 
 struct mddev {
@@ -234,6 +201,9 @@ struct mddev {
 				 */
 #define MD_JOURNAL_CLEAN 5	/* A raid with journal is already clean */
 #define MD_HAS_JOURNAL	6	/* The raid array has journal feature set */
+#define MD_RELOAD_SB	7	/* Reload the superblock because another node
+				 * updated it.
+				 */
 
 	int				suspended;
 	atomic_t			active_io;
@@ -242,8 +212,6 @@ struct mddev {
 						       * are happening, so run/
 						       * takeover/stop are not safe
 						       */
-	int				ready; /* See when safe to pass
-						* IO requests down */
 	struct gendisk			*gendisk;
 
 	struct kobject			kobj;
@@ -260,7 +228,7 @@ struct mddev {
 							 * managed externally */
 	char				metadata_type[17]; /* externally set*/
 	int				chunk_sectors;
-	time_t				ctime, utime;
+	time64_t			ctime, utime;
 	int				level, layout;
 	char				clevel[16];
 	int				raid_disks;
@@ -464,6 +432,7 @@ struct mddev {
 	struct work_struct event_work;	/* used by dm to report failure event */
 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
 	struct md_cluster_info		*cluster_info;
+	unsigned int			good_device_nr;	/* good device num within cluster raid */
 };
 
 static inline int __must_check mddev_lock(struct mddev *mddev)
@@ -657,7 +626,7 @@ extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);
 extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
 extern int md_check_no_bitmap(struct mddev *mddev);
 extern int md_integrity_register(struct mddev *mddev);
-extern void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
+extern int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
 extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
 
 extern void mddev_init(struct mddev *mddev);
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 7331a80d89f1..0a72ab6e6c20 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -257,6 +257,9 @@ static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 			disk_stack_limits(mddev->gendisk, rdev->bdev,
 					  rdev->data_offset << 9);
 
+			err = md_integrity_add_rdev(rdev, mddev);
+			if (err)
+				break;
 			spin_lock_irq(&conf->device_lock);
 			mddev->degraded--;
 			rdev->raid_disk = path;
@@ -264,9 +267,6 @@ static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 			spin_unlock_irq(&conf->device_lock);
 			rcu_assign_pointer(p->rdev, rdev);
 			err = 0;
-			mddev_suspend(mddev);
-			md_integrity_add_rdev(rdev, mddev);
-			mddev_resume(mddev);
 			break;
 		}
 
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index f8e5db0cb5aa..2ea12c6bf659 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -549,13 +549,13 @@ static void *raid0_takeover_raid10(struct mddev *mddev)
 	 *  - all mirrors must be already degraded
 	 */
 	if (mddev->layout != ((1 << 8) + 2)) {
-		printk(KERN_ERR "md/raid0:%s:: Raid0 cannot takover layout: 0x%x\n",
+		printk(KERN_ERR "md/raid0:%s:: Raid0 cannot takeover layout: 0x%x\n",
 		       mdname(mddev),
 		       mddev->layout);
 		return ERR_PTR(-EINVAL);
 	}
 	if (mddev->raid_disks & 1) {
-		printk(KERN_ERR "md/raid0:%s: Raid0 cannot takover Raid10 with odd disk number.\n",
+		printk(KERN_ERR "md/raid0:%s: Raid0 cannot takeover Raid10 with odd disk number.\n",
 		       mdname(mddev));
 		return ERR_PTR(-EINVAL);
 	}
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index e2169ff6e0f0..c4b913409226 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1589,6 +1589,9 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 	if (mddev->recovery_disabled == conf->recovery_disabled)
 		return -EBUSY;
 
+	if (md_integrity_add_rdev(rdev, mddev))
+		return -ENXIO;
+
 	if (rdev->raid_disk >= 0)
 		first = last = rdev->raid_disk;
 
@@ -1632,9 +1635,6 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 			break;
 		}
 	}
-	mddev_suspend(mddev);
-	md_integrity_add_rdev(rdev, mddev);
-	mddev_resume(mddev);
 	if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev)))
 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
 	print_conf(conf);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 84e597e1c489..ce959b4ae4df 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1698,6 +1698,9 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 	if (rdev->saved_raid_disk < 0 && !_enough(conf, 1, -1))
 		return -EINVAL;
 
+	if (md_integrity_add_rdev(rdev, mddev))
+		return -ENXIO;
+
 	if (rdev->raid_disk >= 0)
 		first = last = rdev->raid_disk;
 
@@ -1739,9 +1742,6 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 		rcu_assign_pointer(p->rdev, rdev);
 		break;
 	}
-	mddev_suspend(mddev);
-	md_integrity_add_rdev(rdev, mddev);
-	mddev_resume(mddev);
 	if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev)))
 		queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
 
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index b887e04d7e5c..9531f5f05b93 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -34,6 +34,12 @@
 #define RECLAIM_MAX_FREE_SPACE (10 * 1024 * 1024 * 2) /* sector */
 #define RECLAIM_MAX_FREE_SPACE_SHIFT (2)
 
+/*
+ * We only need 2 bios per I/O unit to make progress, but ensure we
+ * have a few more available to not get too tight.
+ */
+#define R5L_POOL_SIZE	4
+
 struct r5l_log {
 	struct md_rdev *rdev;
 
@@ -69,7 +75,12 @@ struct r5l_log {
 	struct list_head finished_ios;	/* io_units which settle down in log disk */
 	struct bio flush_bio;
 
+	struct list_head no_mem_stripes;   /* pending stripes, -ENOMEM */
+
 	struct kmem_cache *io_kc;
+	mempool_t *io_pool;
+	struct bio_set *bs;
+	mempool_t *meta_pool;
 
 	struct md_thread *reclaim_thread;
 	unsigned long reclaim_target;	/* number of space that need to be
@@ -150,27 +161,6 @@ static bool r5l_has_free_space(struct r5l_log *log, sector_t size)
 	return log->device_size > used_size + size;
 }
 
-static void r5l_free_io_unit(struct r5l_log *log, struct r5l_io_unit *io)
-{
-	__free_page(io->meta_page);
-	kmem_cache_free(log->io_kc, io);
-}
-
-static void r5l_move_io_unit_list(struct list_head *from, struct list_head *to,
-				  enum r5l_io_unit_state state)
-{
-	struct r5l_io_unit *io;
-
-	while (!list_empty(from)) {
-		io = list_first_entry(from, struct r5l_io_unit, log_sibling);
-		/* don't change list order */
-		if (io->state >= state)
-			list_move_tail(&io->log_sibling, to);
-		else
-			break;
-	}
-}
-
 static void __r5l_set_io_unit_state(struct r5l_io_unit *io,
 				    enum r5l_io_unit_state state)
 {
@@ -206,6 +196,20 @@ static void r5l_log_run_stripes(struct r5l_log *log)
 	}
 }
 
+static void r5l_move_to_end_ios(struct r5l_log *log)
+{
+	struct r5l_io_unit *io, *next;
+
+	assert_spin_locked(&log->io_list_lock);
+
+	list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
+		/* don't change list order */
+		if (io->state < IO_UNIT_IO_END)
+			break;
+		list_move_tail(&io->log_sibling, &log->io_end_ios);
+	}
+}
+
 static void r5l_log_endio(struct bio *bio)
 {
 	struct r5l_io_unit *io = bio->bi_private;
@@ -216,12 +220,12 @@ static void r5l_log_endio(struct bio *bio)
 		md_error(log->rdev->mddev, log->rdev);
 
 	bio_put(bio);
+	mempool_free(io->meta_page, log->meta_pool);
 
 	spin_lock_irqsave(&log->io_list_lock, flags);
 	__r5l_set_io_unit_state(io, IO_UNIT_IO_END);
 	if (log->need_cache_flush)
-		r5l_move_io_unit_list(&log->running_ios, &log->io_end_ios,
-				      IO_UNIT_IO_END);
+		r5l_move_to_end_ios(log);
 	else
 		r5l_log_run_stripes(log);
 	spin_unlock_irqrestore(&log->io_list_lock, flags);
@@ -255,7 +259,7 @@ static void r5l_submit_current_io(struct r5l_log *log)
 
 static struct bio *r5l_bio_alloc(struct r5l_log *log)
 {
-	struct bio *bio = bio_kmalloc(GFP_NOIO | __GFP_NOFAIL, BIO_MAX_PAGES);
+	struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, log->bs);
 
 	bio->bi_rw = WRITE;
 	bio->bi_bdev = log->rdev->bdev;
@@ -286,15 +290,19 @@ static struct r5l_io_unit *r5l_new_meta(struct r5l_log *log)
 	struct r5l_io_unit *io;
 	struct r5l_meta_block *block;
 
-	/* We can't handle memory allocate failure so far */
-	io = kmem_cache_zalloc(log->io_kc, GFP_NOIO | __GFP_NOFAIL);
+	io = mempool_alloc(log->io_pool, GFP_ATOMIC);
+	if (!io)
+		return NULL;
+	memset(io, 0, sizeof(*io));
+
 	io->log = log;
 	INIT_LIST_HEAD(&io->log_sibling);
 	INIT_LIST_HEAD(&io->stripe_list);
 	io->state = IO_UNIT_RUNNING;
 
-	io->meta_page = alloc_page(GFP_NOIO | __GFP_NOFAIL | __GFP_ZERO);
+	io->meta_page = mempool_alloc(log->meta_pool, GFP_NOIO);
 	block = page_address(io->meta_page);
+	clear_page(block);
 	block->magic = cpu_to_le32(R5LOG_MAGIC);
 	block->version = R5LOG_VERSION;
 	block->seq = cpu_to_le64(log->seq);
@@ -324,8 +332,12 @@ static int r5l_get_meta(struct r5l_log *log, unsigned int payload_size)
 	    log->current_io->meta_offset + payload_size > PAGE_SIZE)
 		r5l_submit_current_io(log);
 
-	if (!log->current_io)
+	if (!log->current_io) {
 		log->current_io = r5l_new_meta(log);
+		if (!log->current_io)
+			return -ENOMEM;
+	}
+
 	return 0;
 }
 
@@ -370,11 +382,12 @@ static void r5l_append_payload_page(struct r5l_log *log, struct page *page)
 	r5_reserve_log_entry(log, io);
 }
 
-static void r5l_log_stripe(struct r5l_log *log, struct stripe_head *sh,
+static int r5l_log_stripe(struct r5l_log *log, struct stripe_head *sh,
 			   int data_pages, int parity_pages)
 {
 	int i;
 	int meta_size;
+	int ret;
 	struct r5l_io_unit *io;
 
 	meta_size =
@@ -383,7 +396,10 @@ static void r5l_log_stripe(struct r5l_log *log, struct stripe_head *sh,
 		sizeof(struct r5l_payload_data_parity) +
 		sizeof(__le32) * parity_pages;
 
-	r5l_get_meta(log, meta_size);
+	ret = r5l_get_meta(log, meta_size);
+	if (ret)
+		return ret;
+
 	io = log->current_io;
 
 	for (i = 0; i < sh->disks; i++) {
@@ -413,6 +429,8 @@ static void r5l_log_stripe(struct r5l_log *log, struct stripe_head *sh,
 	list_add_tail(&sh->log_list, &io->stripe_list);
 	atomic_inc(&io->pending_stripe);
 	sh->log_io = io;
+
+	return 0;
 }
 
 static void r5l_wake_reclaim(struct r5l_log *log, sector_t space);
@@ -427,6 +445,7 @@ int r5l_write_stripe(struct r5l_log *log, struct stripe_head *sh)
 	int meta_size;
 	int reserve;
 	int i;
+	int ret = 0;
 
 	if (!log)
 		return -EAGAIN;
@@ -475,17 +494,22 @@ int r5l_write_stripe(struct r5l_log *log, struct stripe_head *sh)
 	mutex_lock(&log->io_mutex);
 	/* meta + data */
 	reserve = (1 + write_disks) << (PAGE_SHIFT - 9);
-	if (r5l_has_free_space(log, reserve))
-		r5l_log_stripe(log, sh, data_pages, parity_pages);
-	else {
+	if (!r5l_has_free_space(log, reserve)) {
 		spin_lock(&log->no_space_stripes_lock);
 		list_add_tail(&sh->log_list, &log->no_space_stripes);
 		spin_unlock(&log->no_space_stripes_lock);
 
 		r5l_wake_reclaim(log, reserve);
+	} else {
+		ret = r5l_log_stripe(log, sh, data_pages, parity_pages);
+		if (ret) {
+			spin_lock_irq(&log->io_list_lock);
+			list_add_tail(&sh->log_list, &log->no_mem_stripes);
+			spin_unlock_irq(&log->io_list_lock);
+		}
 	}
-	mutex_unlock(&log->io_mutex);
 
+	mutex_unlock(&log->io_mutex);
 	return 0;
 }
 
@@ -538,6 +562,21 @@ static sector_t r5l_reclaimable_space(struct r5l_log *log)
 				 log->next_checkpoint);
 }
 
+static void r5l_run_no_mem_stripe(struct r5l_log *log)
+{
+	struct stripe_head *sh;
+
+	assert_spin_locked(&log->io_list_lock);
+
+	if (!list_empty(&log->no_mem_stripes)) {
+		sh = list_first_entry(&log->no_mem_stripes,
+				      struct stripe_head, log_list);
+		list_del_init(&sh->log_list);
+		set_bit(STRIPE_HANDLE, &sh->state);
+		raid5_release_stripe(sh);
+	}
+}
+
 static bool r5l_complete_finished_ios(struct r5l_log *log)
 {
 	struct r5l_io_unit *io, *next;
@@ -554,7 +593,8 @@ static bool r5l_complete_finished_ios(struct r5l_log *log)
 		log->next_cp_seq = io->seq;
 
 		list_del(&io->log_sibling);
-		r5l_free_io_unit(log, io);
+		mempool_free(io, log->io_pool);
+		r5l_run_no_mem_stripe(log);
 
 		found = true;
 	}
@@ -787,6 +827,13 @@ void r5l_quiesce(struct r5l_log *log, int state)
 		return;
 	if (state == 0) {
 		log->in_teardown = 0;
+		/*
+		 * This is a special case for hotadd. In suspend, the array has
+		 * no journal. In resume, journal is initialized as well as the
+		 * reclaim thread.
+		 */
+		if (log->reclaim_thread)
+			return;
 		log->reclaim_thread = md_register_thread(r5l_reclaim_thread,
 					log->rdev->mddev, "reclaim");
 	} else if (state == 1) {
@@ -806,10 +853,18 @@ void r5l_quiesce(struct r5l_log *log, int state)
 
 bool r5l_log_disk_error(struct r5conf *conf)
 {
+	struct r5l_log *log;
+	bool ret;
 	/* don't allow write if journal disk is missing */
-	if (!conf->log)
-		return test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);
-	return test_bit(Faulty, &conf->log->rdev->flags);
+	rcu_read_lock();
+	log = rcu_dereference(conf->log);
+
+	if (!log)
+		ret = test_bit(MD_HAS_JOURNAL, &conf->mddev->flags);
+	else
+		ret = test_bit(Faulty, &log->rdev->flags);
+	rcu_read_unlock();
+	return ret;
 }
 
 struct r5l_recovery_ctx {
@@ -1160,23 +1215,45 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
 	if (!log->io_kc)
 		goto io_kc;
 
+	log->io_pool = mempool_create_slab_pool(R5L_POOL_SIZE, log->io_kc);
+	if (!log->io_pool)
+		goto io_pool;
+
+	log->bs = bioset_create(R5L_POOL_SIZE, 0);
+	if (!log->bs)
+		goto io_bs;
+
+	log->meta_pool = mempool_create_page_pool(R5L_POOL_SIZE, 0);
+	if (!log->meta_pool)
+		goto out_mempool;
+
 	log->reclaim_thread = md_register_thread(r5l_reclaim_thread,
 						 log->rdev->mddev, "reclaim");
 	if (!log->reclaim_thread)
 		goto reclaim_thread;
 	init_waitqueue_head(&log->iounit_wait);
 
+	INIT_LIST_HEAD(&log->no_mem_stripes);
+
 	INIT_LIST_HEAD(&log->no_space_stripes);
 	spin_lock_init(&log->no_space_stripes_lock);
 
 	if (r5l_load_log(log))
 		goto error;
 
-	conf->log = log;
+	rcu_assign_pointer(conf->log, log);
+	set_bit(MD_HAS_JOURNAL, &conf->mddev->flags);
 	return 0;
+
 error:
 	md_unregister_thread(&log->reclaim_thread);
 reclaim_thread:
+	mempool_destroy(log->meta_pool);
+out_mempool:
+	bioset_free(log->bs);
+io_bs:
+	mempool_destroy(log->io_pool);
+io_pool:
 	kmem_cache_destroy(log->io_kc);
 io_kc:
 	kfree(log);
@@ -1186,6 +1263,9 @@ io_kc:
 void r5l_exit_log(struct r5l_log *log)
 {
 	md_unregister_thread(&log->reclaim_thread);
+	mempool_destroy(log->meta_pool);
+	bioset_free(log->bs);
+	mempool_destroy(log->io_pool);
 	kmem_cache_destroy(log->io_kc);
 	kfree(log);
 }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 704ef7fcfbf8..a086014dcd49 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -772,8 +772,6 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
 	int hash;
 	int dd_idx;
 
-	if (!stripe_can_batch(sh))
-		return;
 	/* Don't cross chunks, so stripe pd_idx/qd_idx is the same */
 	tmp_sec = sh->sector;
 	if (!sector_div(tmp_sec, conf->chunk_sectors))
@@ -7141,14 +7139,19 @@ static int raid5_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
 	struct disk_info *p = conf->disks + number;
 
 	print_raid5_conf(conf);
-	if (test_bit(Journal, &rdev->flags)) {
+	if (test_bit(Journal, &rdev->flags) && conf->log) {
+		struct r5l_log *log;
 		/*
-		 * journal disk is not removable, but we need give a chance to
-		 * update superblock of other disks. Otherwise journal disk
-		 * will be considered as 'fresh'
+		 * we can't wait pending write here, as this is called in
+		 * raid5d, wait will deadlock.
 		 */
-		set_bit(MD_CHANGE_DEVS, &mddev->flags);
-		return -EINVAL;
+		if (atomic_read(&mddev->writes_pending))
+			return -EBUSY;
+		log = conf->log;
+		conf->log = NULL;
+		synchronize_rcu();
+		r5l_exit_log(log);
+		return 0;
 	}
 	if (rdev == p->rdev)
 		rdevp = &p->rdev;
@@ -7212,8 +7215,21 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 	int first = 0;
 	int last = conf->raid_disks - 1;
 
-	if (test_bit(Journal, &rdev->flags))
-		return -EINVAL;
+	if (test_bit(Journal, &rdev->flags)) {
+		char b[BDEVNAME_SIZE];
+		if (conf->log)
+			return -EBUSY;
+
+		rdev->raid_disk = 0;
+		/*
+		 * The array is in readonly mode if journal is missing, so no
+		 * write requests running. We should be safe
+		 */
+		r5l_init_log(conf, rdev);
+		printk(KERN_INFO"md/raid:%s: using device %s as journal\n",
+		       mdname(mddev), bdevname(rdev->bdev, b));
+		return 0;
+	}
 	if (mddev->recovery_disabled == conf->recovery_disabled)
 		return -EBUSY;
 
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 9264ea73b3be..a8518fb3bca7 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -97,7 +97,6 @@ config MEDIA_CONTROLLER
 config MEDIA_CONTROLLER_DVB
 	bool "Enable Media controller for DVB (EXPERIMENTAL)"
 	depends on MEDIA_CONTROLLER
-	depends on BROKEN
 	---help---
 	  Enable the media controller API support for DVB.
 
diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c
index d5837be3e8cf..ea2f3bf7368b 100644
--- a/drivers/media/common/saa7146/saa7146_video.c
+++ b/drivers/media/common/saa7146/saa7146_video.c
@@ -502,7 +502,7 @@ static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuf
 	/* check if overlay is running */
 	if (IS_OVERLAY_ACTIVE(fh) != 0) {
 		if (vv->video_fh != fh) {
-			DEB_D("refusing to change framebuffer informations while overlay is active in another open\n");
+			DEB_D("refusing to change framebuffer information while overlay is active in another open\n");
 			return -EBUSY;
 		}
 	}
diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
index f4305ae800f4..d31f468830cf 100644
--- a/drivers/media/common/siano/smsdvb-main.c
+++ b/drivers/media/common/siano/smsdvb-main.c
@@ -617,6 +617,7 @@ static void smsdvb_media_device_unregister(struct smsdvb_client_t *client)
 	if (!coredev->media_dev)
 		return;
 	media_device_unregister(coredev->media_dev);
+	media_device_cleanup(coredev->media_dev);
 	kfree(coredev->media_dev);
 	coredev->media_dev = NULL;
 #endif
@@ -1183,7 +1184,11 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev,
 	if (smsdvb_debugfs_create(client) < 0)
 		pr_info("failed to create debugfs node\n");
 
-	dvb_create_media_graph(&client->adapter);
+	rc = dvb_create_media_graph(&client->adapter, true);
+	if (rc < 0) {
+		pr_err("dvb_create_media_graph failed %d\n", rc);
+		goto client_error;
+	}
 
 	pr_info("DVB interface registered.\n");
 	return 0;
diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index ea9abde902e9..a168cbe1c998 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -1244,9 +1244,9 @@ int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 	}
 
 	dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
-			    DVB_DEVICE_DEMUX);
+			    DVB_DEVICE_DEMUX, dmxdev->filternum);
 	dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
-			    dmxdev, DVB_DEVICE_DVR);
+			    dmxdev, DVB_DEVICE_DVR, dmxdev->filternum);
 
 	dvb_ringbuffer_init(&dmxdev->dvr_buffer, NULL, 8192);
 
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index fb66184dc9b6..f82cd1ff4f3a 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -1695,7 +1695,7 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
 	pubca->private = ca;
 
 	/* register the DVB device */
-	ret = dvb_register_device(dvb_adapter, &ca->dvbdev, &dvbdev_ca, ca, DVB_DEVICE_CA);
+	ret = dvb_register_device(dvb_adapter, &ca->dvbdev, &dvbdev_ca, ca, DVB_DEVICE_CA, 0);
 	if (ret)
 		goto free_slot_info;
 
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index b64f33776b74..40080645341e 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -622,7 +622,7 @@ static int dvb_enable_media_tuner(struct dvb_frontend *fe)
 	struct media_device *mdev = adapter->mdev;
 	struct media_entity  *entity, *source;
 	struct media_link *link, *found_link = NULL;
-	int i, ret, n_links = 0, active_links = 0;
+	int ret, n_links = 0, active_links = 0;
 
 	fepriv->pipe_start_entity = NULL;
 
@@ -632,8 +632,7 @@ static int dvb_enable_media_tuner(struct dvb_frontend *fe)
 	entity = fepriv->dvbdev->entity;
 	fepriv->pipe_start_entity = entity;
 
-	for (i = 0; i < entity->num_links; i++) {
-		link = &entity->links[i];
+	list_for_each_entry(link, &entity->links, list) {
 		if (link->sink->entity == entity) {
 			found_link = link;
 			n_links++;
@@ -659,13 +658,11 @@ static int dvb_enable_media_tuner(struct dvb_frontend *fe)
 
 	source = found_link->source->entity;
 	fepriv->pipe_start_entity = source;
-	for (i = 0; i < source->num_links; i++) {
+	list_for_each_entry(link, &source->links, list) {
 		struct media_entity *sink;
 		int flags = 0;
 
-		link = &source->links[i];
 		sink = link->sink->entity;
-
 		if (sink == entity)
 			flags = MEDIA_LNK_FL_ENABLED;
 
@@ -2762,7 +2759,7 @@ int dvb_register_frontend(struct dvb_adapter* dvb,
 			fe->dvb->num, fe->id, fe->ops.info.name);
 
 	dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template,
-			     fe, DVB_DEVICE_FRONTEND);
+			     fe, DVB_DEVICE_FRONTEND, 0);
 
 	/*
 	 * Initialize the cache to the proper values according with the
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index ce4332e80a91..ce6a711b42d4 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -1502,6 +1502,6 @@ int dvb_net_init (struct dvb_adapter *adap, struct dvb_net *dvbnet,
 		dvbnet->state[i] = 0;
 
 	return dvb_register_device(adap, &dvbnet->dvbdev, &dvbdev_net,
-			     dvbnet, DVB_DEVICE_NET);
+			     dvbnet, DVB_DEVICE_NET, 0);
 }
 EXPORT_SYMBOL(dvb_net_init);
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 13bb57f0457f..560450a0b32a 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -34,6 +34,9 @@
 #include <linux/mutex.h>
 #include "dvbdev.h"
 
+/* Due to enum tuner_pad_index */
+#include <media/tuner.h>
+
 static DEFINE_MUTEX(dvbdev_mutex);
 static int dvbdev_debug;
 
@@ -180,102 +183,255 @@ skip:
 	return -ENFILE;
 }
 
-static void dvb_register_media_device(struct dvb_device *dvbdev,
-				      int type, int minor)
+static void dvb_media_device_free(struct dvb_device *dvbdev)
 {
 #if defined(CONFIG_MEDIA_CONTROLLER_DVB)
-	int ret = 0, npads;
+	if (dvbdev->entity) {
+		media_device_unregister_entity(dvbdev->entity);
+		kfree(dvbdev->entity);
+		kfree(dvbdev->pads);
+		dvbdev->entity = NULL;
+		dvbdev->pads = NULL;
+	}
 
-	if (!dvbdev->adapter->mdev)
-		return;
+	if (dvbdev->tsout_entity) {
+		int i;
 
-	dvbdev->entity = kzalloc(sizeof(*dvbdev->entity), GFP_KERNEL);
-	if (!dvbdev->entity)
-		return;
+		for (i = 0; i < dvbdev->tsout_num_entities; i++) {
+			media_device_unregister_entity(&dvbdev->tsout_entity[i]);
+			kfree(dvbdev->tsout_entity[i].name);
+		}
+		kfree(dvbdev->tsout_entity);
+		kfree(dvbdev->tsout_pads);
+		dvbdev->tsout_entity = NULL;
+		dvbdev->tsout_pads = NULL;
 
-	dvbdev->entity->info.dev.major = DVB_MAJOR;
-	dvbdev->entity->info.dev.minor = minor;
-	dvbdev->entity->name = dvbdev->name;
+		dvbdev->tsout_num_entities = 0;
+	}
+
+	if (dvbdev->intf_devnode) {
+		media_devnode_remove(dvbdev->intf_devnode);
+		dvbdev->intf_devnode = NULL;
+	}
+
+	if (dvbdev->adapter->conn) {
+		media_device_unregister_entity(dvbdev->adapter->conn);
+		dvbdev->adapter->conn = NULL;
+		kfree(dvbdev->adapter->conn_pads);
+		dvbdev->adapter->conn_pads = NULL;
+	}
+#endif
+}
+
+#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
+static int dvb_create_tsout_entity(struct dvb_device *dvbdev,
+				    const char *name, int npads)
+{
+	int i, ret = 0;
+
+	dvbdev->tsout_pads = kcalloc(npads, sizeof(*dvbdev->tsout_pads),
+				     GFP_KERNEL);
+	if (!dvbdev->tsout_pads)
+		return -ENOMEM;
+
+	dvbdev->tsout_entity = kcalloc(npads, sizeof(*dvbdev->tsout_entity),
+				       GFP_KERNEL);
+	if (!dvbdev->tsout_entity)
+		return -ENOMEM;
+
+	dvbdev->tsout_num_entities = npads;
+
+	for (i = 0; i < npads; i++) {
+		struct media_pad *pads = &dvbdev->tsout_pads[i];
+		struct media_entity *entity = &dvbdev->tsout_entity[i];
+
+		entity->name = kasprintf(GFP_KERNEL, "%s #%d", name, i);
+		if (!entity->name)
+			return -ENOMEM;
+
+		entity->function = MEDIA_ENT_F_IO_DTV;
+		pads->flags = MEDIA_PAD_FL_SINK;
+
+		ret = media_entity_pads_init(entity, 1, pads);
+		if (ret < 0)
+			return ret;
+
+		ret = media_device_register_entity(dvbdev->adapter->mdev,
+						   entity);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+#define DEMUX_TSOUT	"demux-tsout"
+#define DVR_TSOUT	"dvr-tsout"
+
+static int dvb_create_media_entity(struct dvb_device *dvbdev,
+				   int type, int demux_sink_pads)
+{
+	int i, ret, npads;
 
 	switch (type) {
-	case DVB_DEVICE_CA:
-	case DVB_DEVICE_DEMUX:
 	case DVB_DEVICE_FRONTEND:
 		npads = 2;
 		break;
-	case DVB_DEVICE_NET:
-		npads = 0;
+	case DVB_DEVICE_DVR:
+		ret = dvb_create_tsout_entity(dvbdev, DVR_TSOUT,
+					      demux_sink_pads);
+		return ret;
+	case DVB_DEVICE_DEMUX:
+		npads = 1 + demux_sink_pads;
+		ret = dvb_create_tsout_entity(dvbdev, DEMUX_TSOUT,
+					      demux_sink_pads);
+		if (ret < 0)
+			return ret;
+		break;
+	case DVB_DEVICE_CA:
+		npads = 2;
 		break;
+	case DVB_DEVICE_NET:
+		/*
+		 * We should be creating entities for the MPE/ULE
+		 * decapsulation hardware (or software implementation).
+		 *
+		 * However, the number of for the MPE/ULE decaps may not be
+		 * fixed. As we don't have yet dynamic support for PADs at
+		 * the Media Controller, let's not create the decap
+		 * entities yet.
+		 */
+		return 0;
 	default:
-		npads = 1;
+		return 0;
 	}
 
+	dvbdev->entity = kzalloc(sizeof(*dvbdev->entity), GFP_KERNEL);
+	if (!dvbdev->entity)
+		return -ENOMEM;
+
+	dvbdev->entity->name = dvbdev->name;
+
 	if (npads) {
 		dvbdev->pads = kcalloc(npads, sizeof(*dvbdev->pads),
 				       GFP_KERNEL);
-		if (!dvbdev->pads) {
-			kfree(dvbdev->entity);
-			return;
-		}
+		if (!dvbdev->pads)
+			return -ENOMEM;
 	}
 
 	switch (type) {
 	case DVB_DEVICE_FRONTEND:
-		dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_FE;
+		dvbdev->entity->function = MEDIA_ENT_F_DTV_DEMOD;
 		dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
 		dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
 		break;
 	case DVB_DEVICE_DEMUX:
-		dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_DEMUX;
-		dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
-		dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
-		break;
-	case DVB_DEVICE_DVR:
-		dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_DVR;
+		dvbdev->entity->function = MEDIA_ENT_F_TS_DEMUX;
 		dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
+		for (i = 1; i < npads; i++)
+			dvbdev->pads[i].flags = MEDIA_PAD_FL_SOURCE;
 		break;
 	case DVB_DEVICE_CA:
-		dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_CA;
+		dvbdev->entity->function = MEDIA_ENT_F_DTV_CA;
 		dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
 		dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
 		break;
-	case DVB_DEVICE_NET:
-		dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_NET;
-		break;
 	default:
+		/* Should never happen, as the first switch prevents it */
 		kfree(dvbdev->entity);
+		kfree(dvbdev->pads);
 		dvbdev->entity = NULL;
-		return;
+		dvbdev->pads = NULL;
+		return 0;
 	}
 
-	if (npads)
-		ret = media_entity_init(dvbdev->entity, npads, dvbdev->pads, 0);
-	if (!ret)
-		ret = media_device_register_entity(dvbdev->adapter->mdev,
-						   dvbdev->entity);
-	if (ret < 0) {
-		printk(KERN_ERR
-			"%s: media_device_register_entity failed for %s\n",
-			__func__, dvbdev->entity->name);
-		kfree(dvbdev->pads);
-		kfree(dvbdev->entity);
-		dvbdev->entity = NULL;
-		return;
+	if (npads) {
+		ret = media_entity_pads_init(dvbdev->entity, npads, dvbdev->pads);
+		if (ret)
+			return ret;
 	}
+	ret = media_device_register_entity(dvbdev->adapter->mdev,
+					   dvbdev->entity);
+	if (ret)
+		return (ret);
 
-	printk(KERN_DEBUG "%s: media device '%s' registered.\n",
+	printk(KERN_DEBUG "%s: media entity '%s' registered.\n",
 		__func__, dvbdev->entity->name);
+
+	return 0;
+}
+#endif
+
+static int dvb_register_media_device(struct dvb_device *dvbdev,
+				     int type, int minor,
+				     unsigned demux_sink_pads)
+{
+#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
+	struct media_link *link;
+	u32 intf_type;
+	int ret;
+
+	if (!dvbdev->adapter->mdev)
+		return 0;
+
+	ret = dvb_create_media_entity(dvbdev, type, demux_sink_pads);
+	if (ret)
+		return ret;
+
+	switch (type) {
+	case DVB_DEVICE_FRONTEND:
+		intf_type = MEDIA_INTF_T_DVB_FE;
+		break;
+	case DVB_DEVICE_DEMUX:
+		intf_type = MEDIA_INTF_T_DVB_DEMUX;
+		break;
+	case DVB_DEVICE_DVR:
+		intf_type = MEDIA_INTF_T_DVB_DVR;
+		break;
+	case DVB_DEVICE_CA:
+		intf_type = MEDIA_INTF_T_DVB_CA;
+		break;
+	case DVB_DEVICE_NET:
+		intf_type = MEDIA_INTF_T_DVB_NET;
+		break;
+	default:
+		return 0;
+	}
+
+	dvbdev->intf_devnode = media_devnode_create(dvbdev->adapter->mdev,
+						    intf_type, 0,
+						    DVB_MAJOR, minor);
+
+	if (!dvbdev->intf_devnode)
+		return -ENOMEM;
+
+	/*
+	 * Create the "obvious" link, e. g. the ones that represent
+	 * a direct association between an interface and an entity.
+	 * Other links should be created elsewhere, like:
+	 *		DVB FE intf    -> tuner
+	 *		DVB demux intf -> dvr
+	 */
+
+	if (!dvbdev->entity)
+		return 0;
+
+	link = media_create_intf_link(dvbdev->entity, &dvbdev->intf_devnode->intf,
+				      MEDIA_LNK_FL_ENABLED);
+	if (!link)
+		return -ENOMEM;
 #endif
+	return 0;
 }
 
 int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
-			const struct dvb_device *template, void *priv, int type)
+			const struct dvb_device *template, void *priv, int type,
+			int demux_sink_pads)
 {
 	struct dvb_device *dvbdev;
 	struct file_operations *dvbdevfops;
 	struct device *clsdev;
 	int minor;
-	int id;
+	int id, ret;
 
 	mutex_lock(&dvbdev_register_lock);
 
@@ -286,7 +442,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 		return -ENFILE;
 	}
 
-	*pdvbdev = dvbdev = kmalloc(sizeof(struct dvb_device), GFP_KERNEL);
+	*pdvbdev = dvbdev = kzalloc(sizeof(*dvbdev), GFP_KERNEL);
 
 	if (!dvbdev){
 		mutex_unlock(&dvbdev_register_lock);
@@ -335,6 +491,20 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 	dvb_minors[minor] = dvbdev;
 	up_write(&minor_rwsem);
 
+	ret = dvb_register_media_device(dvbdev, type, minor, demux_sink_pads);
+	if (ret) {
+		printk(KERN_ERR
+		      "%s: dvb_register_media_device failed to create the mediagraph\n",
+		      __func__);
+
+		dvb_media_device_free(dvbdev);
+		kfree(dvbdevfops);
+		kfree(dvbdev);
+		up_write(&minor_rwsem);
+		mutex_unlock(&dvbdev_register_lock);
+		return ret;
+	}
+
 	mutex_unlock(&dvbdev_register_lock);
 
 	clsdev = device_create(dvb_class, adap->device,
@@ -348,8 +518,6 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
 	dprintk(KERN_DEBUG "DVB: register adapter%d/%s%d @ minor: %i (0x%02x)\n",
 		adap->num, dnames[type], id, minor, minor);
 
-	dvb_register_media_device(dvbdev, type, minor);
-
 	return 0;
 }
 EXPORT_SYMBOL(dvb_register_device);
@@ -364,15 +532,9 @@ void dvb_unregister_device(struct dvb_device *dvbdev)
 	dvb_minors[dvbdev->minor] = NULL;
 	up_write(&minor_rwsem);
 
-	device_destroy(dvb_class, MKDEV(DVB_MAJOR, dvbdev->minor));
+	dvb_media_device_free(dvbdev);
 
-#if defined(CONFIG_MEDIA_CONTROLLER_DVB)
-	if (dvbdev->entity) {
-		media_device_unregister_entity(dvbdev->entity);
-		kfree(dvbdev->entity);
-		kfree(dvbdev->pads);
-	}
-#endif
+	device_destroy(dvb_class, MKDEV(DVB_MAJOR, dvbdev->minor));
 
 	list_del (&dvbdev->list_head);
 	kfree (dvbdev->fops);
@@ -382,46 +544,212 @@ EXPORT_SYMBOL(dvb_unregister_device);
 
 
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
-void dvb_create_media_graph(struct dvb_adapter *adap)
+
+static int dvb_create_io_intf_links(struct dvb_adapter *adap,
+				    struct media_interface *intf,
+				    char *name)
+{
+	struct media_device *mdev = adap->mdev;
+	struct media_entity *entity;
+	struct media_link *link;
+
+	media_device_for_each_entity(entity, mdev) {
+		if (entity->function == MEDIA_ENT_F_IO_DTV) {
+			if (strncmp(entity->name, name, strlen(name)))
+				continue;
+			link = media_create_intf_link(entity, intf,
+						      MEDIA_LNK_FL_ENABLED);
+			if (!link)
+				return -ENOMEM;
+		}
+	}
+	return 0;
+}
+
+int dvb_create_media_graph(struct dvb_adapter *adap,
+			   bool create_rf_connector)
 {
 	struct media_device *mdev = adap->mdev;
-	struct media_entity *entity, *tuner = NULL, *fe = NULL;
-	struct media_entity *demux = NULL, *dvr = NULL, *ca = NULL;
+	struct media_entity *entity, *tuner = NULL, *demod = NULL, *conn;
+	struct media_entity *demux = NULL, *ca = NULL;
+	struct media_link *link;
+	struct media_interface *intf;
+	unsigned demux_pad = 0;
+	unsigned dvr_pad = 0;
+	unsigned ntuner = 0, ndemod = 0;
+	int ret;
+	static const char *connector_name = "Television";
 
 	if (!mdev)
-		return;
+		return 0;
 
 	media_device_for_each_entity(entity, mdev) {
-		switch (entity->type) {
-		case MEDIA_ENT_T_V4L2_SUBDEV_TUNER:
+		switch (entity->function) {
+		case MEDIA_ENT_F_TUNER:
 			tuner = entity;
+			ntuner++;
 			break;
-		case MEDIA_ENT_T_DEVNODE_DVB_FE:
-			fe = entity;
+		case MEDIA_ENT_F_DTV_DEMOD:
+			demod = entity;
+			ndemod++;
 			break;
-		case MEDIA_ENT_T_DEVNODE_DVB_DEMUX:
+		case MEDIA_ENT_F_TS_DEMUX:
 			demux = entity;
 			break;
-		case MEDIA_ENT_T_DEVNODE_DVB_DVR:
-			dvr = entity;
-			break;
-		case MEDIA_ENT_T_DEVNODE_DVB_CA:
+		case MEDIA_ENT_F_DTV_CA:
 			ca = entity;
 			break;
 		}
 	}
 
-	if (tuner && fe)
-		media_entity_create_link(tuner, 0, fe, 0, 0);
+	/*
+	 * Prepare to signalize to media_create_pad_links() that multiple
+	 * entities of the same type exists and a 1:n or n:1 links need to be
+	 * created.
+	 * NOTE: if both tuner and demod have multiple instances, it is up
+	 * to the caller driver to create such links.
+	 */
+	if (ntuner > 1)
+		tuner = NULL;
+	if (ndemod > 1)
+		demod = NULL;
+
+	if (create_rf_connector) {
+		conn = kzalloc(sizeof(*conn), GFP_KERNEL);
+		if (!conn)
+			return -ENOMEM;
+		adap->conn = conn;
+
+		adap->conn_pads = kcalloc(1, sizeof(*adap->conn_pads),
+					    GFP_KERNEL);
+		if (!adap->conn_pads)
+			return -ENOMEM;
+
+		conn->flags = MEDIA_ENT_FL_CONNECTOR;
+		conn->function = MEDIA_ENT_F_CONN_RF;
+		conn->name = connector_name;
+		adap->conn_pads->flags = MEDIA_PAD_FL_SOURCE;
+
+		ret = media_entity_pads_init(conn, 1, adap->conn_pads);
+		if (ret)
+			return ret;
+
+		ret = media_device_register_entity(mdev, conn);
+		if (ret)
+			return ret;
+
+		if (!ntuner)
+			ret = media_create_pad_links(mdev,
+						     MEDIA_ENT_F_CONN_RF,
+						     conn, 0,
+						     MEDIA_ENT_F_DTV_DEMOD,
+						     demod, 0,
+						     MEDIA_LNK_FL_ENABLED,
+						     false);
+		else
+			ret = media_create_pad_links(mdev,
+						     MEDIA_ENT_F_CONN_RF,
+						     conn, 0,
+						     MEDIA_ENT_F_TUNER,
+						     tuner, TUNER_PAD_RF_INPUT,
+						     MEDIA_LNK_FL_ENABLED,
+						     false);
+		if (ret)
+			return ret;
+	}
+
+	if (ntuner && ndemod) {
+		ret = media_create_pad_links(mdev,
+					     MEDIA_ENT_F_TUNER,
+					     tuner, TUNER_PAD_IF_OUTPUT,
+					     MEDIA_ENT_F_DTV_DEMOD,
+					     demod, 0, MEDIA_LNK_FL_ENABLED,
+					     false);
+		if (ret)
+			return ret;
+	}
+
+	if (ndemod && demux) {
+		ret = media_create_pad_links(mdev,
+					     MEDIA_ENT_F_DTV_DEMOD,
+					     demod, 1,
+					     MEDIA_ENT_F_TS_DEMUX,
+					     demux, 0, MEDIA_LNK_FL_ENABLED,
+					     false);
+		if (ret)
+			return -ENOMEM;
+	}
+	if (demux && ca) {
+		ret = media_create_pad_link(demux, 1, ca,
+					    0, MEDIA_LNK_FL_ENABLED);
+		if (!ret)
+			return -ENOMEM;
+	}
 
-	if (fe && demux)
-		media_entity_create_link(fe, 1, demux, 0, MEDIA_LNK_FL_ENABLED);
+	/* Create demux links for each ringbuffer/pad */
+	if (demux) {
+		media_device_for_each_entity(entity, mdev) {
+			if (entity->function == MEDIA_ENT_F_IO_DTV) {
+				if (!strncmp(entity->name, DVR_TSOUT,
+				    strlen(DVR_TSOUT))) {
+					ret = media_create_pad_link(demux,
+								++dvr_pad,
+							    entity, 0, 0);
+					if (ret)
+						return ret;
+				}
+				if (!strncmp(entity->name, DEMUX_TSOUT,
+				    strlen(DEMUX_TSOUT))) {
+					ret = media_create_pad_link(demux,
+							      ++demux_pad,
+							    entity, 0, 0);
+					if (ret)
+						return ret;
+				}
+			}
+		}
+	}
 
-	if (demux && dvr)
-		media_entity_create_link(demux, 1, dvr, 0, MEDIA_LNK_FL_ENABLED);
+	/* Create interface links for FE->tuner, DVR->demux and CA->ca */
+	media_device_for_each_intf(intf, mdev) {
+		if (intf->type == MEDIA_INTF_T_DVB_CA && ca) {
+			link = media_create_intf_link(ca, intf,
+						      MEDIA_LNK_FL_ENABLED);
+			if (!link)
+				return -ENOMEM;
+		}
 
-	if (demux && ca)
-		media_entity_create_link(demux, 1, ca, 0, MEDIA_LNK_FL_ENABLED);
+		if (intf->type == MEDIA_INTF_T_DVB_FE && tuner) {
+			link = media_create_intf_link(tuner, intf,
+						      MEDIA_LNK_FL_ENABLED);
+			if (!link)
+				return -ENOMEM;
+		}
+#if 0
+		/*
+		 * Indirect link - let's not create yet, as we don't know how
+		 *		   to handle indirect links, nor if this will
+		 *		   actually be needed.
+		 */
+		if (intf->type == MEDIA_INTF_T_DVB_DVR && demux) {
+			link = media_create_intf_link(demux, intf,
+						      MEDIA_LNK_FL_ENABLED);
+			if (!link)
+				return -ENOMEM;
+		}
+#endif
+		if (intf->type == MEDIA_INTF_T_DVB_DVR) {
+			ret = dvb_create_io_intf_links(adap, intf, DVR_TSOUT);
+			if (ret)
+				return ret;
+		}
+		if (intf->type == MEDIA_INTF_T_DVB_DEMUX) {
+			ret = dvb_create_io_intf_links(adap, intf, DEMUX_TSOUT);
+			if (ret)
+				return ret;
+		}
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(dvb_create_media_graph);
 #endif
diff --git a/drivers/media/dvb-core/dvbdev.h b/drivers/media/dvb-core/dvbdev.h
index 1069a776bbdb..4aff7bd3dea8 100644
--- a/drivers/media/dvb-core/dvbdev.h
+++ b/drivers/media/dvb-core/dvbdev.h
@@ -75,6 +75,9 @@ struct dvb_frontend;
  *			used.
  * @mdev:		pointer to struct media_device, used when the media
  *			controller is used.
+ * @conn:		RF connector. Used only if the device has no separate
+ *			tuner.
+ * @conn_pads:		pointer to struct media_pad associated with @conn;
  */
 struct dvb_adapter {
 	int num;
@@ -94,6 +97,8 @@ struct dvb_adapter {
 
 #if defined(CONFIG_MEDIA_CONTROLLER_DVB)
 	struct media_device *mdev;
+	struct media_entity *conn;
+	struct media_pad *conn_pads;
 #endif
 };
 
@@ -120,6 +125,11 @@ struct dvb_adapter {
  * @entity:	pointer to struct media_entity associated with the device node
  * @pads:	pointer to struct media_pad associated with @entity;
  * @priv:	private data
+ * @intf_devnode: Pointer to media_intf_devnode. Used by the dvbdev core to
+ *		store the MC device node interface
+ * @tsout_num_entities: Number of Transport Stream output entities
+ * @tsout_entity: array with MC entities associated to each TS output node
+ * @tsout_pads: array with the source pads for each @tsout_entity
  *
  * This structure is used by the DVB core (frontend, CA, net, demux) in
  * order to create the device nodes. Usually, driver should not initialize
@@ -148,8 +158,11 @@ struct dvb_device {
 	const char *name;
 
 	/* Allocated and filled inside dvbdev.c */
-	struct media_entity *entity;
-	struct media_pad *pads;
+	struct media_intf_devnode *intf_devnode;
+
+	unsigned tsout_num_entities;
+	struct media_entity *entity, *tsout_entity;
+	struct media_pad *pads, *tsout_pads;
 #endif
 
 	void *priv;
@@ -185,14 +198,18 @@ int dvb_unregister_adapter(struct dvb_adapter *adap);
  *		stored
  * @template:	Template used to create &pdvbdev;
  * @priv:	private data
- * @type:	type of the device: DVB_DEVICE_SEC, DVB_DEVICE_FRONTEND,
- *		DVB_DEVICE_DEMUX, DVB_DEVICE_DVR, DVB_DEVICE_CA, DVB_DEVICE_NET
+ * @type:	type of the device: %DVB_DEVICE_SEC, %DVB_DEVICE_FRONTEND,
+ *		%DVB_DEVICE_DEMUX, %DVB_DEVICE_DVR, %DVB_DEVICE_CA,
+ *		%DVB_DEVICE_NET
+ * @demux_sink_pads: Number of demux outputs, to be used to create the TS
+ *		outputs via the Media Controller.
  */
 int dvb_register_device(struct dvb_adapter *adap,
 			struct dvb_device **pdvbdev,
 			const struct dvb_device *template,
 			void *priv,
-			int type);
+			int type,
+			int demux_sink_pads);
 
 /**
  * dvb_unregister_device - Unregisters a DVB device
@@ -202,16 +219,43 @@ int dvb_register_device(struct dvb_adapter *adap,
 void dvb_unregister_device(struct dvb_device *dvbdev);
 
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
-void dvb_create_media_graph(struct dvb_adapter *adap);
+/**
+ * dvb_create_media_graph - Creates media graph for the Digital TV part of the
+ * 				device.
+ *
+ * @adap:			pointer to struct dvb_adapter
+ * @create_rf_connector:	if true, it creates the RF connector too
+ *
+ * This function checks all DVB-related functions at the media controller
+ * entities and creates the needed links for the media graph. It is
+ * capable of working with multiple tuners or multiple frontends, but it
+ * won't create links if the device has multiple tuners and multiple frontends
+ * or if the device has multiple muxes. In such case, the caller driver should
+ * manually create the remaining links.
+ */
+__must_check int dvb_create_media_graph(struct dvb_adapter *adap,
+					bool create_rf_connector);
+
 static inline void dvb_register_media_controller(struct dvb_adapter *adap,
 						 struct media_device *mdev)
 {
 	adap->mdev = mdev;
 }
 
+static inline struct media_device
+*dvb_get_media_controller(struct dvb_adapter *adap)
+{
+	return adap->mdev;
+}
 #else
-static inline void dvb_create_media_graph(struct dvb_adapter *adap) {}
+static inline
+int dvb_create_media_graph(struct dvb_adapter *adap,
+			   bool create_rf_connector)
+{
+	return 0;
+};
 #define dvb_register_media_controller(a, b) {}
+#define dvb_get_media_controller(a) NULL
 #endif
 
 int dvb_generic_open (struct inode *inode, struct file *file);
diff --git a/drivers/media/dvb-frontends/au8522_decoder.c b/drivers/media/dvb-frontends/au8522_decoder.c
index c8f13d8370e5..73612c5353d1 100644
--- a/drivers/media/dvb-frontends/au8522_decoder.c
+++ b/drivers/media/dvb-frontends/au8522_decoder.c
@@ -730,6 +730,9 @@ static int au8522_probe(struct i2c_client *client,
 	struct v4l2_ctrl_handler *hdl;
 	struct v4l2_subdev *sd;
 	int instance;
+#ifdef CONFIG_MEDIA_CONTROLLER
+	int ret;
+#endif
 
 	/* Check if the adapter supports the needed features */
 	if (!i2c_check_functionality(client->adapter,
@@ -758,6 +761,20 @@ static int au8522_probe(struct i2c_client *client,
 
 	sd = &state->sd;
 	v4l2_i2c_subdev_init(sd, client, &au8522_ops);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+
+	state->pads[AU8522_PAD_INPUT].flags = MEDIA_PAD_FL_SINK;
+	state->pads[AU8522_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
+	state->pads[AU8522_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
+	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
+
+	ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads),
+				state->pads);
+	if (ret < 0) {
+		v4l_info(client, "failed to initialize media entity!\n");
+		return ret;
+	}
+#endif
 
 	hdl = &state->hdl;
 	v4l2_ctrl_handler_init(hdl, 4);
diff --git a/drivers/media/dvb-frontends/au8522_priv.h b/drivers/media/dvb-frontends/au8522_priv.h
index ee330c61aa61..404a0cb0ed8d 100644
--- a/drivers/media/dvb-frontends/au8522_priv.h
+++ b/drivers/media/dvb-frontends/au8522_priv.h
@@ -39,6 +39,14 @@
 #define AU8522_DIGITAL_MODE 1
 #define AU8522_SUSPEND_MODE 2
 
+enum au8522_media_pads {
+	AU8522_PAD_INPUT,
+	AU8522_PAD_VID_OUT,
+	AU8522_PAD_VBI_OUT,
+
+	AU8522_NUM_PADS
+};
+
 struct au8522_state {
 	struct i2c_client *c;
 	struct i2c_adapter *i2c;
@@ -68,6 +76,10 @@ struct au8522_state {
 	u32 id;
 	u32 rev;
 	struct v4l2_ctrl_handler hdl;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_pad pads[AU8522_NUM_PADS];
+#endif
 };
 
 /* These are routines shared by both the VSB/QAM demodulator and the analog
diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c
index feeeb70d841e..ce73a5ec6036 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -685,7 +685,7 @@ static int m88ds3103_init(struct dvb_frontend *fe)
 	/* request the firmware, this will block and timeout */
 	ret = request_firmware(&fw, fw_file, &client->dev);
 	if (ret) {
-		dev_err(&client->dev, "firmare file '%s' not found\n", fw_file);
+		dev_err(&client->dev, "firmware file '%s' not found\n", fw_file);
 		goto err;
 	}
 
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c
index 1cf6e52e0105..2b93241d4bc1 100644
--- a/drivers/media/dvb-frontends/si2165.c
+++ b/drivers/media/dvb-frontends/si2165.c
@@ -541,7 +541,7 @@ static int si2165_upload_firmware(struct si2165_state *state)
 					   &offset, block_count);
 	if (ret < 0) {
 		dev_err(&state->i2c->dev,
-			"%s: firmare could not be uploaded\n",
+			"%s: firmware could not be uploaded\n",
 			KBUILD_MODNAME);
 		goto error;
 	}
@@ -565,7 +565,7 @@ static int si2165_upload_firmware(struct si2165_state *state)
 
 	if (len != offset) {
 		dev_err(&state->i2c->dev,
-			"%s: firmare len mismatch %04x != %04x\n",
+			"%s: firmware len mismatch %04x != %04x\n",
 			KBUILD_MODNAME, len, offset);
 		ret = -EINVAL;
 		goto error;
diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
index e63f582378bf..edbb30fdd9d9 100644
--- a/drivers/media/firewire/firedtv-ci.c
+++ b/drivers/media/firewire/firedtv-ci.c
@@ -241,7 +241,7 @@ int fdtv_ca_register(struct firedtv *fdtv)
 		return -EFAULT;
 
 	err = dvb_register_device(&fdtv->adapter, &fdtv->cadev,
-				  &fdtv_ca, fdtv, DVB_DEVICE_CA);
+				  &fdtv_ca, fdtv, DVB_DEVICE_CA, 0);
 
 	if (stat.ca_application_info == 0)
 		dev_err(fdtv->device, "CaApplicationInfo is not set\n");
diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c
index 0494a7896aa2..788967dadd29 100644
--- a/drivers/media/i2c/ad9389b.c
+++ b/drivers/media/i2c/ad9389b.c
@@ -1158,7 +1158,7 @@ static int ad9389b_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->rgb_quantization_range_ctrl->is_private = true;
 
 	state->pad.flags = MEDIA_PAD_FL_SINK;
-	err = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c
index f00745bbe471..7e9cbf757e95 100644
--- a/drivers/media/i2c/adp1653.c
+++ b/drivers/media/i2c/adp1653.c
@@ -512,11 +512,11 @@ static int adp1653_probe(struct i2c_client *client,
 	if (ret)
 		goto free_and_quit;
 
-	ret = media_entity_init(&flash->subdev.entity, 0, NULL, 0);
+	ret = media_entity_pads_init(&flash->subdev.entity, 0, NULL);
 	if (ret < 0)
 		goto free_and_quit;
 
-	flash->subdev.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+	flash->subdev.entity.function = MEDIA_ENT_F_FLASH;
 
 	return 0;
 
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 3c3c4bfe3866..ff57c1dcb8af 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -1213,8 +1213,8 @@ static int adv7180_probe(struct i2c_client *client,
 		goto err_unregister_vpp_client;
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
-	ret = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	sd->entity.flags |= MEDIA_ENT_F_ATV_DECODER;
+	ret = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (ret)
 		goto err_free_ctrl;
 
diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c
index eeb2cd823c4d..471fd23b5c5c 100644
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511.c
@@ -1482,7 +1482,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->rgb_quantization_range_ctrl->is_private = true;
 
 	state->pad.flags = MEDIA_PAD_FL_SINK;
-	err = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 745286225655..f8dd7505b529 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -3208,8 +3208,8 @@ static int adv76xx_probe(struct i2c_client *client,
 		state->pads[i].flags = MEDIA_PAD_FL_SINK;
 	state->pads[state->source_pad].flags = MEDIA_PAD_FL_SOURCE;
 
-	err = media_entity_init(&sd->entity, state->source_pad + 1,
-				state->pads, 0);
+	err = media_entity_pads_init(&sd->entity, state->source_pad + 1,
+				state->pads);
 	if (err)
 		goto err_work_queues;
 
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 69378e4914b6..5fbb788e7b59 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -3309,7 +3309,7 @@ static int adv7842_probe(struct i2c_client *client,
 			adv7842_delayed_work_enable_hotplug);
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
-	err = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err)
 		goto err_work_queues;
 
diff --git a/drivers/media/i2c/as3645a.c b/drivers/media/i2c/as3645a.c
index 29a2e7034aa6..2e90e4094b79 100644
--- a/drivers/media/i2c/as3645a.c
+++ b/drivers/media/i2c/as3645a.c
@@ -827,11 +827,11 @@ static int as3645a_probe(struct i2c_client *client,
 	if (ret < 0)
 		goto done;
 
-	ret = media_entity_init(&flash->subdev.entity, 0, NULL, 0);
+	ret = media_entity_pads_init(&flash->subdev.entity, 0, NULL);
 	if (ret < 0)
 		goto done;
 
-	flash->subdev.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+	flash->subdev.entity.function = MEDIA_ENT_F_FLASH;
 
 	mutex_init(&flash->power_lock);
 
diff --git a/drivers/media/i2c/cx25840/cx25840-core.c b/drivers/media/i2c/cx25840/cx25840-core.c
index f2e2c34ddbbd..07a3e7173144 100644
--- a/drivers/media/i2c/cx25840/cx25840-core.c
+++ b/drivers/media/i2c/cx25840/cx25840-core.c
@@ -5211,10 +5211,10 @@ static int cx25840_probe(struct i2c_client *client,
 	state->pads[CX25840_PAD_INPUT].flags = MEDIA_PAD_FL_SINK;
 	state->pads[CX25840_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 	state->pads[CX25840_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
+	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
 
-	ret = media_entity_init(&sd->entity, ARRAY_SIZE(state->pads),
-				state->pads, 0);
+	ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(state->pads),
+				state->pads);
 	if (ret < 0) {
 		v4l_info(client, "failed to initialize media entity!\n");
 		return ret;
diff --git a/drivers/media/i2c/lm3560.c b/drivers/media/i2c/lm3560.c
index 19ecb8801064..251a2aaf98c3 100644
--- a/drivers/media/i2c/lm3560.c
+++ b/drivers/media/i2c/lm3560.c
@@ -365,10 +365,10 @@ static int lm3560_subdev_init(struct lm3560_flash *flash,
 	rval = lm3560_init_controls(flash, led_no);
 	if (rval)
 		goto err_out;
-	rval = media_entity_init(&flash->subdev_led[led_no].entity, 0, NULL, 0);
+	rval = media_entity_pads_init(&flash->subdev_led[led_no].entity, 0, NULL);
 	if (rval < 0)
 		goto err_out;
-	flash->subdev_led[led_no].entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+	flash->subdev_led[led_no].entity.function = MEDIA_ENT_F_FLASH;
 
 	return rval;
 
diff --git a/drivers/media/i2c/lm3646.c b/drivers/media/i2c/lm3646.c
index 7fbe6ff1c4f4..7e9967af36ec 100644
--- a/drivers/media/i2c/lm3646.c
+++ b/drivers/media/i2c/lm3646.c
@@ -282,10 +282,10 @@ static int lm3646_subdev_init(struct lm3646_flash *flash)
 	rval = lm3646_init_controls(flash);
 	if (rval)
 		goto err_out;
-	rval = media_entity_init(&flash->subdev_led.entity, 0, NULL, 0);
+	rval = media_entity_pads_init(&flash->subdev_led.entity, 0, NULL);
 	if (rval < 0)
 		goto err_out;
-	flash->subdev_led.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+	flash->subdev_led.entity.function = MEDIA_ENT_F_FLASH;
 	return rval;
 
 err_out:
diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index f8993933416e..acb804bceccb 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -975,10 +975,10 @@ static int m5mols_probe(struct i2c_client *client,
 
 	sd->internal_ops = &m5mols_subdev_internal_ops;
 	info->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, 1, &info->pad, 0);
+	ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
 	if (ret < 0)
 		return ret;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
 	init_waitqueue_head(&info->irq_waitq);
 	mutex_init(&info->lock);
diff --git a/drivers/media/i2c/mt9m032.c b/drivers/media/i2c/mt9m032.c
index 101cb26f9330..da076796999e 100644
--- a/drivers/media/i2c/mt9m032.c
+++ b/drivers/media/i2c/mt9m032.c
@@ -799,7 +799,7 @@ static int mt9m032_probe(struct i2c_client *client,
 
 	sensor->subdev.ctrl_handler = &sensor->ctrls;
 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sensor->subdev.entity, 1, &sensor->pad, 0);
+	ret = media_entity_pads_init(&sensor->subdev.entity, 1, &sensor->pad);
 	if (ret < 0)
 		goto error_ctrl;
 
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index a3da0e977d0b..237737fec09c 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -1112,7 +1112,7 @@ static int mt9p031_probe(struct i2c_client *client,
 	mt9p031->subdev.internal_ops = &mt9p031_subdev_internal_ops;
 
 	mt9p031->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9p031->subdev.entity, 1, &mt9p031->pad, 0);
+	ret = media_entity_pads_init(&mt9p031->subdev.entity, 1, &mt9p031->pad);
 	if (ret < 0)
 		goto done;
 
diff --git a/drivers/media/i2c/mt9t001.c b/drivers/media/i2c/mt9t001.c
index b28fdff1d310..702d562f8e39 100644
--- a/drivers/media/i2c/mt9t001.c
+++ b/drivers/media/i2c/mt9t001.c
@@ -933,7 +933,7 @@ static int mt9t001_probe(struct i2c_client *client,
 	mt9t001->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	mt9t001->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9t001->subdev.entity, 1, &mt9t001->pad, 0);
+	ret = media_entity_pads_init(&mt9t001->subdev.entity, 1, &mt9t001->pad);
 
 done:
 	if (ret < 0) {
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 1dbbd23fdfb0..2e1d116a64e7 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -1046,7 +1046,7 @@ static int mt9v032_probe(struct i2c_client *client,
 	mt9v032->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	mt9v032->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&mt9v032->subdev.entity, 1, &mt9v032->pad, 0);
+	ret = media_entity_pads_init(&mt9v032->subdev.entity, 1, &mt9v032->pad);
 	if (ret < 0)
 		goto err;
 
diff --git a/drivers/media/i2c/noon010pc30.c b/drivers/media/i2c/noon010pc30.c
index 69e4f3031d8b..30cb90b88d75 100644
--- a/drivers/media/i2c/noon010pc30.c
+++ b/drivers/media/i2c/noon010pc30.c
@@ -779,8 +779,8 @@ static int noon010_probe(struct i2c_client *client,
 		goto np_err;
 
 	info->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &info->pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
 	if (ret < 0)
 		goto np_err;
 
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index 82c7ac1cc88e..02b9a3440557 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -1445,8 +1445,8 @@ static int ov2659_probe(struct i2c_client *client,
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	ov2659->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &ov2659->pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &ov2659->pad);
 	if (ret < 0) {
 		v4l2_ctrl_handler_free(&ov2659->ctrls);
 		return ret;
diff --git a/drivers/media/i2c/ov9650.c b/drivers/media/i2c/ov9650.c
index 9fe9006474b2..a0b3c9bde53d 100644
--- a/drivers/media/i2c/ov9650.c
+++ b/drivers/media/i2c/ov9650.c
@@ -1500,8 +1500,8 @@ static int ov965x_probe(struct i2c_client *client,
 		return ret;
 
 	ov965x->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &ov965x->pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &ov965x->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 25f5e79dc9bc..57b3d27993a4 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -1482,11 +1482,11 @@ static int s5c73m3_oif_registered(struct v4l2_subdev *sd)
 		return ret;
 	}
 
-	ret = media_entity_create_link(&state->sensor_sd.entity,
+	ret = media_create_pad_link(&state->sensor_sd.entity,
 			S5C73M3_ISP_PAD, &state->oif_sd.entity, OIF_ISP_PAD,
 			MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
 
-	ret = media_entity_create_link(&state->sensor_sd.entity,
+	ret = media_create_pad_link(&state->sensor_sd.entity,
 			S5C73M3_JPEG_PAD, &state->oif_sd.entity, OIF_JPEG_PAD,
 			MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
 
@@ -1688,10 +1688,10 @@ static int s5c73m3_probe(struct i2c_client *client,
 
 	state->sensor_pads[S5C73M3_JPEG_PAD].flags = MEDIA_PAD_FL_SOURCE;
 	state->sensor_pads[S5C73M3_ISP_PAD].flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
-	ret = media_entity_init(&sd->entity, S5C73M3_NUM_PADS,
-							state->sensor_pads, 0);
+	ret = media_entity_pads_init(&sd->entity, S5C73M3_NUM_PADS,
+							state->sensor_pads);
 	if (ret < 0)
 		return ret;
 
@@ -1704,10 +1704,10 @@ static int s5c73m3_probe(struct i2c_client *client,
 	state->oif_pads[OIF_ISP_PAD].flags = MEDIA_PAD_FL_SINK;
 	state->oif_pads[OIF_JPEG_PAD].flags = MEDIA_PAD_FL_SINK;
 	state->oif_pads[OIF_SOURCE_PAD].flags = MEDIA_PAD_FL_SOURCE;
-	oif_sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
+	oif_sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
 
-	ret = media_entity_init(&oif_sd->entity, OIF_NUM_PADS,
-							state->oif_pads, 0);
+	ret = media_entity_pads_init(&oif_sd->entity, OIF_NUM_PADS,
+							state->oif_pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/i2c/s5k4ecgx.c b/drivers/media/i2c/s5k4ecgx.c
index 6757aca2cdab..8a0f22da590f 100644
--- a/drivers/media/i2c/s5k4ecgx.c
+++ b/drivers/media/i2c/s5k4ecgx.c
@@ -961,8 +961,8 @@ static int s5k4ecgx_probe(struct i2c_client *client,
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	priv->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &priv->pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &priv->pad);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index 774e0d0c94cb..fc3a5a8e6c9c 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -408,7 +408,7 @@ static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl)
 
 static inline bool s5k5baf_is_cis_subdev(struct v4l2_subdev *sd)
 {
-	return sd->entity.type == MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
+	return sd->entity.function == MEDIA_ENT_F_CAM_SENSOR;
 }
 
 static inline struct s5k5baf *to_s5k5baf(struct v4l2_subdev *sd)
@@ -1756,7 +1756,7 @@ static int s5k5baf_registered(struct v4l2_subdev *sd)
 		v4l2_err(sd, "failed to register subdev %s\n",
 			 state->cis_sd.name);
 	else
-		ret = media_entity_create_link(&state->cis_sd.entity, PAD_CIS,
+		ret = media_create_pad_link(&state->cis_sd.entity, PAD_CIS,
 					       &state->sd.entity, PAD_CIS,
 					       MEDIA_LNK_FL_IMMUTABLE |
 					       MEDIA_LNK_FL_ENABLED);
@@ -1904,8 +1904,8 @@ static int s5k5baf_configure_subdevs(struct s5k5baf *state,
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	state->cis_pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, NUM_CIS_PADS, &state->cis_pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, NUM_CIS_PADS, &state->cis_pad);
 	if (ret < 0)
 		goto err;
 
@@ -1919,8 +1919,8 @@ static int s5k5baf_configure_subdevs(struct s5k5baf *state,
 
 	state->pads[PAD_CIS].flags = MEDIA_PAD_FL_SINK;
 	state->pads[PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
-	ret = media_entity_init(&sd->entity, NUM_ISP_PADS, state->pads, 0);
+	sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
+	ret = media_entity_pads_init(&sd->entity, NUM_ISP_PADS, state->pads);
 
 	if (!ret)
 		return 0;
diff --git a/drivers/media/i2c/s5k6a3.c b/drivers/media/i2c/s5k6a3.c
index b1b1574dfb95..b9e43ffa5085 100644
--- a/drivers/media/i2c/s5k6a3.c
+++ b/drivers/media/i2c/s5k6a3.c
@@ -333,7 +333,7 @@ static int s5k6a3_probe(struct i2c_client *client,
 	sensor->format.height = S5K6A3_DEFAULT_HEIGHT;
 
 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, 1, &sensor->pad, 0);
+	ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/i2c/s5k6aa.c b/drivers/media/i2c/s5k6aa.c
index 60aaff7190d2..faee11383cb7 100644
--- a/drivers/media/i2c/s5k6aa.c
+++ b/drivers/media/i2c/s5k6aa.c
@@ -1577,8 +1577,8 @@ static int s5k6aa_probe(struct i2c_client *client,
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	s5k6aa->pad.flags = MEDIA_PAD_FL_SOURCE;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
-	ret = media_entity_init(&sd->entity, 1, &s5k6aa->pad, 0);
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &s5k6aa->pad);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index fb39dfd55e75..a215efe7a8ba 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2487,31 +2487,31 @@ static int smiapp_register_subdevs(struct smiapp_sensor *sensor)
 		if (!last)
 			continue;
 
-		rval = media_entity_init(&this->sd.entity,
-					 this->npads, this->pads, 0);
+		rval = media_entity_pads_init(&this->sd.entity,
+					 this->npads, this->pads);
 		if (rval) {
 			dev_err(&client->dev,
-				"media_entity_init failed\n");
+				"media_entity_pads_init failed\n");
 			return rval;
 		}
 
-		rval = media_entity_create_link(&this->sd.entity,
-						this->source_pad,
-						&last->sd.entity,
-						last->sink_pad,
-						MEDIA_LNK_FL_ENABLED |
-						MEDIA_LNK_FL_IMMUTABLE);
+		rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev,
+						   &this->sd);
 		if (rval) {
 			dev_err(&client->dev,
-				"media_entity_create_link failed\n");
+				"v4l2_device_register_subdev failed\n");
 			return rval;
 		}
 
-		rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev,
-						   &this->sd);
+		rval = media_create_pad_link(&this->sd.entity,
+					     this->source_pad,
+					     &last->sd.entity,
+					     last->sink_pad,
+					     MEDIA_LNK_FL_ENABLED |
+					     MEDIA_LNK_FL_IMMUTABLE);
 		if (rval) {
 			dev_err(&client->dev,
-				"v4l2_device_register_subdev failed\n");
+				"media_create_pad_link failed\n");
 			return rval;
 		}
 	}
@@ -2763,7 +2763,7 @@ static int smiapp_init(struct smiapp_sensor *sensor)
 
 	dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile);
 
-	sensor->pixel_array->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
+	sensor->pixel_array->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
 	/* final steps */
 	smiapp_read_frame_fmt(sensor);
@@ -3077,8 +3077,8 @@ static int smiapp_probe(struct i2c_client *client,
 	sensor->src->sensor = sensor;
 
 	sensor->src->pads[0].flags = MEDIA_PAD_FL_SOURCE;
-	rval = media_entity_init(&sensor->src->sd.entity, 2,
-				 sensor->src->pads, 0);
+	rval = media_entity_pads_init(&sensor->src->sd.entity, 2,
+				 sensor->src->pads);
 	if (rval < 0)
 		return rval;
 
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 77b801152ea5..3397eb99c67b 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -1889,7 +1889,7 @@ static int tc358743_probe(struct i2c_client *client,
 	}
 
 	state->pad.flags = MEDIA_PAD_FL_SOURCE;
-	err = media_entity_init(&sd->entity, 1, &state->pad, 0);
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
 	if (err < 0)
 		goto err_hdl;
 
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index b5dba5b7ce3a..7fa5f1e4fe37 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -1095,9 +1095,9 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	decoder->pad.flags = MEDIA_PAD_FL_SOURCE;
 	decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-	decoder->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
+	decoder->sd.entity.flags |= MEDIA_ENT_F_ATV_DECODER;
 
-	ret = media_entity_init(&decoder->sd.entity, 1, &decoder->pad, 0);
+	ret = media_entity_pads_init(&decoder->sd.entity, 1, &decoder->pad);
 	if (ret < 0) {
 		v4l2_err(sd, "%s decoder driver failed to register !!\n",
 			 sd->name);
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 772a3043ae3b..83c79fa5f61d 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -1012,9 +1012,9 @@ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	device->pad.flags = MEDIA_PAD_FL_SOURCE;
 	device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-	device->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER;
+	device->sd.entity.flags |= MEDIA_ENT_F_ATV_DECODER;
 
-	error = media_entity_init(&device->sd.entity, 1, &device->pad, 0);
+	error = media_entity_pads_init(&device->sd.entity, 1, &device->pad);
 	if (error < 0)
 		return error;
 #endif
diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index 7b39440192d6..7dae0ac0f3ae 100644
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -22,14 +22,18 @@
 
 #include <linux/compat.h>
 #include <linux/export.h>
+#include <linux/idr.h>
 #include <linux/ioctl.h>
 #include <linux/media.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 
 #include <media/media-device.h>
 #include <media/media-devnode.h>
 #include <media/media-entity.h>
 
+#ifdef CONFIG_MEDIA_CONTROLLER
+
 /* -----------------------------------------------------------------------------
  * Userspace API
  */
@@ -75,8 +79,8 @@ static struct media_entity *find_entity(struct media_device *mdev, u32 id)
 	spin_lock(&mdev->lock);
 
 	media_device_for_each_entity(entity, mdev) {
-		if ((entity->id == id && !next) ||
-		    (entity->id > id && next)) {
+		if (((media_entity_id(entity) == id) && !next) ||
+		    ((media_entity_id(entity) > id) && next)) {
 			spin_unlock(&mdev->lock);
 			return entity;
 		}
@@ -102,13 +106,13 @@ static long media_device_enum_entities(struct media_device *mdev,
 	if (ent == NULL)
 		return -EINVAL;
 
-	u_ent.id = ent->id;
+	u_ent.id = media_entity_id(ent);
 	if (ent->name)
 		strlcpy(u_ent.name, ent->name, sizeof(u_ent.name));
-	u_ent.type = ent->type;
-	u_ent.revision = ent->revision;
+	u_ent.type = ent->function;
+	u_ent.revision = 0;		/* Unused */
 	u_ent.flags = ent->flags;
-	u_ent.group_id = ent->group_id;
+	u_ent.group_id = 0;		/* Unused */
 	u_ent.pads = ent->num_pads;
 	u_ent.links = ent->num_links - ent->num_backlinks;
 	memcpy(&u_ent.raw, &ent->info, sizeof(ent->info));
@@ -120,7 +124,7 @@ static long media_device_enum_entities(struct media_device *mdev,
 static void media_device_kpad_to_upad(const struct media_pad *kpad,
 				      struct media_pad_desc *upad)
 {
-	upad->entity = kpad->entity->id;
+	upad->entity = media_entity_id(kpad->entity);
 	upad->index = kpad->index;
 	upad->flags = kpad->flags;
 }
@@ -148,25 +152,25 @@ static long __media_device_enum_links(struct media_device *mdev,
 	}
 
 	if (links->links) {
-		struct media_link_desc __user *ulink;
-		unsigned int l;
+		struct media_link *link;
+		struct media_link_desc __user *ulink_desc = links->links;
 
-		for (l = 0, ulink = links->links; l < entity->num_links; l++) {
-			struct media_link_desc link;
+		list_for_each_entry(link, &entity->links, list) {
+			struct media_link_desc klink_desc;
 
 			/* Ignore backlinks. */
-			if (entity->links[l].source->entity != entity)
+			if (link->source->entity != entity)
 				continue;
-
-			memset(&link, 0, sizeof(link));
-			media_device_kpad_to_upad(entity->links[l].source,
-						  &link.source);
-			media_device_kpad_to_upad(entity->links[l].sink,
-						  &link.sink);
-			link.flags = entity->links[l].flags;
-			if (copy_to_user(ulink, &link, sizeof(*ulink)))
+			memset(&klink_desc, 0, sizeof(klink_desc));
+			media_device_kpad_to_upad(link->source,
+						  &klink_desc.source);
+			media_device_kpad_to_upad(link->sink,
+						  &klink_desc.sink);
+			klink_desc.flags = link->flags;
+			if (copy_to_user(ulink_desc, &klink_desc,
+					 sizeof(*ulink_desc)))
 				return -EFAULT;
-			ulink++;
+			ulink_desc++;
 		}
 	}
 
@@ -230,6 +234,164 @@ static long media_device_setup_link(struct media_device *mdev,
 	return ret;
 }
 
+#if 0 /* Let's postpone it to Kernel 4.6 */
+static long __media_device_get_topology(struct media_device *mdev,
+				      struct media_v2_topology *topo)
+{
+	struct media_entity *entity;
+	struct media_interface *intf;
+	struct media_pad *pad;
+	struct media_link *link;
+	struct media_v2_entity kentity, *uentity;
+	struct media_v2_interface kintf, *uintf;
+	struct media_v2_pad kpad, *upad;
+	struct media_v2_link klink, *ulink;
+	unsigned int i;
+	int ret = 0;
+
+	topo->topology_version = mdev->topology_version;
+
+	/* Get entities and number of entities */
+	i = 0;
+	uentity = media_get_uptr(topo->ptr_entities);
+	media_device_for_each_entity(entity, mdev) {
+		i++;
+		if (ret || !uentity)
+			continue;
+
+		if (i > topo->num_entities) {
+			ret = -ENOSPC;
+			continue;
+		}
+
+		/* Copy fields to userspace struct if not error */
+		memset(&kentity, 0, sizeof(kentity));
+		kentity.id = entity->graph_obj.id;
+		kentity.function = entity->function;
+		strncpy(kentity.name, entity->name,
+			sizeof(kentity.name));
+
+		if (copy_to_user(uentity, &kentity, sizeof(kentity)))
+			ret = -EFAULT;
+		uentity++;
+	}
+	topo->num_entities = i;
+
+	/* Get interfaces and number of interfaces */
+	i = 0;
+	uintf = media_get_uptr(topo->ptr_interfaces);
+	media_device_for_each_intf(intf, mdev) {
+		i++;
+		if (ret || !uintf)
+			continue;
+
+		if (i > topo->num_interfaces) {
+			ret = -ENOSPC;
+			continue;
+		}
+
+		memset(&kintf, 0, sizeof(kintf));
+
+		/* Copy intf fields to userspace struct */
+		kintf.id = intf->graph_obj.id;
+		kintf.intf_type = intf->type;
+		kintf.flags = intf->flags;
+
+		if (media_type(&intf->graph_obj) == MEDIA_GRAPH_INTF_DEVNODE) {
+			struct media_intf_devnode *devnode;
+
+			devnode = intf_to_devnode(intf);
+
+			kintf.devnode.major = devnode->major;
+			kintf.devnode.minor = devnode->minor;
+		}
+
+		if (copy_to_user(uintf, &kintf, sizeof(kintf)))
+			ret = -EFAULT;
+		uintf++;
+	}
+	topo->num_interfaces = i;
+
+	/* Get pads and number of pads */
+	i = 0;
+	upad = media_get_uptr(topo->ptr_pads);
+	media_device_for_each_pad(pad, mdev) {
+		i++;
+		if (ret || !upad)
+			continue;
+
+		if (i > topo->num_pads) {
+			ret = -ENOSPC;
+			continue;
+		}
+
+		memset(&kpad, 0, sizeof(kpad));
+
+		/* Copy pad fields to userspace struct */
+		kpad.id = pad->graph_obj.id;
+		kpad.entity_id = pad->entity->graph_obj.id;
+		kpad.flags = pad->flags;
+
+		if (copy_to_user(upad, &kpad, sizeof(kpad)))
+			ret = -EFAULT;
+		upad++;
+	}
+	topo->num_pads = i;
+
+	/* Get links and number of links */
+	i = 0;
+	ulink = media_get_uptr(topo->ptr_links);
+	media_device_for_each_link(link, mdev) {
+		if (link->is_backlink)
+			continue;
+
+		i++;
+
+		if (ret || !ulink)
+			continue;
+
+		if (i > topo->num_links) {
+			ret = -ENOSPC;
+			continue;
+		}
+
+		memset(&klink, 0, sizeof(klink));
+
+		/* Copy link fields to userspace struct */
+		klink.id = link->graph_obj.id;
+		klink.source_id = link->gobj0->id;
+		klink.sink_id = link->gobj1->id;
+		klink.flags = link->flags;
+
+		if (copy_to_user(ulink, &klink, sizeof(klink)))
+			ret = -EFAULT;
+		ulink++;
+	}
+	topo->num_links = i;
+
+	return ret;
+}
+
+static long media_device_get_topology(struct media_device *mdev,
+				      struct media_v2_topology __user *utopo)
+{
+	struct media_v2_topology ktopo;
+	int ret;
+
+	if (copy_from_user(&ktopo, utopo, sizeof(ktopo)))
+		return -EFAULT;
+
+	ret = __media_device_get_topology(mdev, &ktopo);
+	if (ret < 0)
+		return ret;
+
+	if (copy_to_user(utopo, &ktopo, sizeof(*utopo)))
+		return -EFAULT;
+
+	return 0;
+}
+#endif
+
 static long media_device_ioctl(struct file *filp, unsigned int cmd,
 			       unsigned long arg)
 {
@@ -262,6 +424,14 @@ static long media_device_ioctl(struct file *filp, unsigned int cmd,
 		mutex_unlock(&dev->graph_mutex);
 		break;
 
+#if 0 /* Let's postpone it to Kernel 4.6 */
+	case MEDIA_IOC_G_TOPOLOGY:
+		mutex_lock(&dev->graph_mutex);
+		ret = media_device_get_topology(dev,
+				(struct media_v2_topology __user *)arg);
+		mutex_unlock(&dev->graph_mutex);
+		break;
+#endif
 	default:
 		ret = -ENOIOCTLCMD;
 	}
@@ -310,6 +480,9 @@ static long media_device_compat_ioctl(struct file *filp, unsigned int cmd,
 	case MEDIA_IOC_DEVICE_INFO:
 	case MEDIA_IOC_ENUM_ENTITIES:
 	case MEDIA_IOC_SETUP_LINK:
+#if 0 /* Let's postpone it to Kernel 4.6 */
+	case MEDIA_IOC_G_TOPOLOGY:
+#endif
 		return media_device_ioctl(filp, cmd, arg);
 
 	case MEDIA_IOC_ENUM_LINKS32:
@@ -357,10 +530,107 @@ static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
 
 static void media_device_release(struct media_devnode *mdev)
 {
+	dev_dbg(mdev->parent, "Media device released\n");
+}
+
+/**
+ * media_device_register_entity - Register an entity with a media device
+ * @mdev:	The media device
+ * @entity:	The entity
+ */
+int __must_check media_device_register_entity(struct media_device *mdev,
+					      struct media_entity *entity)
+{
+	unsigned int i;
+	int ret;
+
+	if (entity->function == MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN ||
+	    entity->function == MEDIA_ENT_F_UNKNOWN)
+		dev_warn(mdev->dev,
+			 "Entity type for entity %s was not initialized!\n",
+			 entity->name);
+
+	/* Warn if we apparently re-register an entity */
+	WARN_ON(entity->graph_obj.mdev != NULL);
+	entity->graph_obj.mdev = mdev;
+	INIT_LIST_HEAD(&entity->links);
+	entity->num_links = 0;
+	entity->num_backlinks = 0;
+
+	if (!ida_pre_get(&mdev->entity_internal_idx, GFP_KERNEL))
+		return -ENOMEM;
+
+	spin_lock(&mdev->lock);
+
+	ret = ida_get_new_above(&mdev->entity_internal_idx, 1,
+				&entity->internal_idx);
+	if (ret < 0) {
+		spin_unlock(&mdev->lock);
+		return ret;
+	}
+
+	mdev->entity_internal_idx_max =
+		max(mdev->entity_internal_idx_max, entity->internal_idx);
+
+	/* Initialize media_gobj embedded at the entity */
+	media_gobj_create(mdev, MEDIA_GRAPH_ENTITY, &entity->graph_obj);
+
+	/* Initialize objects at the pads */
+	for (i = 0; i < entity->num_pads; i++)
+		media_gobj_create(mdev, MEDIA_GRAPH_PAD,
+			       &entity->pads[i].graph_obj);
+
+	spin_unlock(&mdev->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(media_device_register_entity);
+
+static void __media_device_unregister_entity(struct media_entity *entity)
+{
+	struct media_device *mdev = entity->graph_obj.mdev;
+	struct media_link *link, *tmp;
+	struct media_interface *intf;
+	unsigned int i;
+
+	ida_simple_remove(&mdev->entity_internal_idx, entity->internal_idx);
+
+	/* Remove all interface links pointing to this entity */
+	list_for_each_entry(intf, &mdev->interfaces, graph_obj.list) {
+		list_for_each_entry_safe(link, tmp, &intf->links, list) {
+			if (link->entity == entity)
+				__media_remove_intf_link(link);
+		}
+	}
+
+	/* Remove all data links that belong to this entity */
+	__media_entity_remove_links(entity);
+
+	/* Remove all pads that belong to this entity */
+	for (i = 0; i < entity->num_pads; i++)
+		media_gobj_destroy(&entity->pads[i].graph_obj);
+
+	/* Remove the entity */
+	media_gobj_destroy(&entity->graph_obj);
+
+	entity->graph_obj.mdev = NULL;
 }
 
+void media_device_unregister_entity(struct media_entity *entity)
+{
+	struct media_device *mdev = entity->graph_obj.mdev;
+
+	if (mdev == NULL)
+		return;
+
+	spin_lock(&mdev->lock);
+	__media_device_unregister_entity(entity);
+	spin_unlock(&mdev->lock);
+}
+EXPORT_SYMBOL_GPL(media_device_unregister_entity);
+
 /**
- * media_device_register - register a media device
+ * media_device_init() - initialize a media device
  * @mdev:	The media device
  *
  * The caller is responsible for initializing the media device before
@@ -369,23 +639,41 @@ static void media_device_release(struct media_devnode *mdev)
  * - dev must point to the parent device
  * - model must be filled with the device model name
  */
-int __must_check __media_device_register(struct media_device *mdev,
-					 struct module *owner)
+void media_device_init(struct media_device *mdev)
 {
-	int ret;
-
-	if (WARN_ON(mdev->dev == NULL || mdev->model[0] == 0))
-		return -EINVAL;
-
-	mdev->entity_id = 1;
 	INIT_LIST_HEAD(&mdev->entities);
+	INIT_LIST_HEAD(&mdev->interfaces);
+	INIT_LIST_HEAD(&mdev->pads);
+	INIT_LIST_HEAD(&mdev->links);
 	spin_lock_init(&mdev->lock);
 	mutex_init(&mdev->graph_mutex);
+	ida_init(&mdev->entity_internal_idx);
+
+	dev_dbg(mdev->dev, "Media device initialized\n");
+}
+EXPORT_SYMBOL_GPL(media_device_init);
+
+void media_device_cleanup(struct media_device *mdev)
+{
+	ida_destroy(&mdev->entity_internal_idx);
+	mdev->entity_internal_idx_max = 0;
+	mutex_destroy(&mdev->graph_mutex);
+}
+EXPORT_SYMBOL_GPL(media_device_cleanup);
+
+int __must_check __media_device_register(struct media_device *mdev,
+					 struct module *owner)
+{
+	int ret;
 
 	/* Register the device node. */
 	mdev->devnode.fops = &media_device_fops;
 	mdev->devnode.parent = mdev->dev;
 	mdev->devnode.release = media_device_release;
+
+	/* Set version 0 to indicate user-space that the graph is static */
+	mdev->topology_version = 0;
+
 	ret = media_devnode_register(&mdev->devnode, owner);
 	if (ret < 0)
 		return ret;
@@ -396,69 +684,74 @@ int __must_check __media_device_register(struct media_device *mdev,
 		return ret;
 	}
 
+	dev_dbg(mdev->dev, "Media device registered\n");
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__media_device_register);
 
-/**
- * media_device_unregister - unregister a media device
- * @mdev:	The media device
- *
- */
 void media_device_unregister(struct media_device *mdev)
 {
 	struct media_entity *entity;
 	struct media_entity *next;
+	struct media_interface *intf, *tmp_intf;
 
-	list_for_each_entry_safe(entity, next, &mdev->entities, list)
-		media_device_unregister_entity(entity);
+	if (mdev == NULL)
+		return;
+
+	spin_lock(&mdev->lock);
+
+	/* Check if mdev was ever registered at all */
+	if (!media_devnode_is_registered(&mdev->devnode)) {
+		spin_unlock(&mdev->lock);
+		return;
+	}
+
+	/* Remove all entities from the media device */
+	list_for_each_entry_safe(entity, next, &mdev->entities, graph_obj.list)
+		__media_device_unregister_entity(entity);
+
+	/* Remove all interfaces from the media device */
+	list_for_each_entry_safe(intf, tmp_intf, &mdev->interfaces,
+				 graph_obj.list) {
+		__media_remove_intf_links(intf);
+		media_gobj_destroy(&intf->graph_obj);
+		kfree(intf);
+	}
+
+	spin_unlock(&mdev->lock);
 
 	device_remove_file(&mdev->devnode.dev, &dev_attr_model);
 	media_devnode_unregister(&mdev->devnode);
+
+	dev_dbg(mdev->dev, "Media device unregistered\n");
 }
 EXPORT_SYMBOL_GPL(media_device_unregister);
 
-/**
- * media_device_register_entity - Register an entity with a media device
- * @mdev:	The media device
- * @entity:	The entity
- */
-int __must_check media_device_register_entity(struct media_device *mdev,
-					      struct media_entity *entity)
+static void media_device_release_devres(struct device *dev, void *res)
 {
-	/* Warn if we apparently re-register an entity */
-	WARN_ON(entity->parent != NULL);
-	entity->parent = mdev;
-
-	spin_lock(&mdev->lock);
-	if (entity->id == 0)
-		entity->id = mdev->entity_id++;
-	else
-		mdev->entity_id = max(entity->id + 1, mdev->entity_id);
-	list_add_tail(&entity->list, &mdev->entities);
-	spin_unlock(&mdev->lock);
-
-	return 0;
 }
-EXPORT_SYMBOL_GPL(media_device_register_entity);
 
-/**
- * media_device_unregister_entity - Unregister an entity
- * @entity:	The entity
- *
- * If the entity has never been registered this function will return
- * immediately.
- */
-void media_device_unregister_entity(struct media_entity *entity)
+struct media_device *media_device_get_devres(struct device *dev)
 {
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev;
 
-	if (mdev == NULL)
-		return;
+	mdev = devres_find(dev, media_device_release_devres, NULL, NULL);
+	if (mdev)
+		return mdev;
 
-	spin_lock(&mdev->lock);
-	list_del(&entity->list);
-	spin_unlock(&mdev->lock);
-	entity->parent = NULL;
+	mdev = devres_alloc(media_device_release_devres,
+				sizeof(struct media_device), GFP_KERNEL);
+	if (!mdev)
+		return NULL;
+	return devres_get(dev, mdev, NULL, NULL);
 }
-EXPORT_SYMBOL_GPL(media_device_unregister_entity);
+EXPORT_SYMBOL_GPL(media_device_get_devres);
+
+struct media_device *media_device_find_devres(struct device *dev)
+{
+	return devres_find(dev, media_device_release_devres, NULL, NULL);
+}
+EXPORT_SYMBOL_GPL(media_device_find_devres);
+
+#endif /* CONFIG_MEDIA_CONTROLLER */
diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c
index ebf9626e5ae5..cea35bf20011 100644
--- a/drivers/media/media-devnode.c
+++ b/drivers/media/media-devnode.c
@@ -217,20 +217,6 @@ static const struct file_operations media_devnode_fops = {
 	.llseek = no_llseek,
 };
 
-/**
- * media_devnode_register - register a media device node
- * @mdev: media device node structure we want to register
- *
- * The registration code assigns minor numbers and registers the new device node
- * with the kernel. An error is returned if no free minor number can be found,
- * or if the registration of the device node fails.
- *
- * Zero is returned on success.
- *
- * Note that if the media_devnode_register call fails, the release() callback of
- * the media_devnode structure is *not* called, so the caller is responsible for
- * freeing any data.
- */
 int __must_check media_devnode_register(struct media_devnode *mdev,
 					struct module *owner)
 {
@@ -285,16 +271,6 @@ error:
 	return ret;
 }
 
-/**
- * media_devnode_unregister - unregister a media device node
- * @mdev: the device node to unregister
- *
- * This unregisters the passed device. Future open calls will be met with
- * errors.
- *
- * This function can safely be called if the device node has never been
- * registered or has already been unregistered.
- */
 void media_devnode_unregister(struct media_devnode *mdev)
 {
 	/* Check if mdev was ever registered at all */
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 767fe55ba08e..e89d85a7d31b 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -26,65 +26,198 @@
 #include <media/media-entity.h>
 #include <media/media-device.h>
 
+static inline const char *gobj_type(enum media_gobj_type type)
+{
+	switch (type) {
+	case MEDIA_GRAPH_ENTITY:
+		return "entity";
+	case MEDIA_GRAPH_PAD:
+		return "pad";
+	case MEDIA_GRAPH_LINK:
+		return "link";
+	case MEDIA_GRAPH_INTF_DEVNODE:
+		return "intf-devnode";
+	default:
+		return "unknown";
+	}
+}
+
+static inline const char *intf_type(struct media_interface *intf)
+{
+	switch (intf->type) {
+	case MEDIA_INTF_T_DVB_FE:
+		return "frontend";
+	case MEDIA_INTF_T_DVB_DEMUX:
+		return "demux";
+	case MEDIA_INTF_T_DVB_DVR:
+		return "DVR";
+	case MEDIA_INTF_T_DVB_CA:
+		return  "CA";
+	case MEDIA_INTF_T_DVB_NET:
+		return "dvbnet";
+	case MEDIA_INTF_T_V4L_VIDEO:
+		return "video";
+	case MEDIA_INTF_T_V4L_VBI:
+		return "vbi";
+	case MEDIA_INTF_T_V4L_RADIO:
+		return "radio";
+	case MEDIA_INTF_T_V4L_SUBDEV:
+		return "v4l2-subdev";
+	case MEDIA_INTF_T_V4L_SWRADIO:
+		return "swradio";
+	default:
+		return "unknown-intf";
+	}
+};
+
+__must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
+					  int idx_max)
+{
+	ent_enum->bmap = kcalloc(DIV_ROUND_UP(idx_max, BITS_PER_LONG),
+				 sizeof(long), GFP_KERNEL);
+	if (!ent_enum->bmap)
+		return -ENOMEM;
+
+	bitmap_zero(ent_enum->bmap, idx_max);
+	ent_enum->idx_max = idx_max;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__media_entity_enum_init);
+
+void media_entity_enum_cleanup(struct media_entity_enum *ent_enum)
+{
+	kfree(ent_enum->bmap);
+}
+EXPORT_SYMBOL_GPL(media_entity_enum_cleanup);
+
 /**
- * media_entity_init - Initialize a media entity
- *
- * @num_pads: Total number of sink and source pads.
- * @extra_links: Initial estimate of the number of extra links.
- * @pads: Array of 'num_pads' pads.
- *
- * The total number of pads is an intrinsic property of entities known by the
- * entity driver, while the total number of links depends on hardware design
- * and is an extrinsic property unknown to the entity driver. However, in most
- * use cases the entity driver can guess the number of links which can safely
- * be assumed to be equal to or larger than the number of pads.
- *
- * For those reasons the links array can be preallocated based on the entity
- * driver guess and will be reallocated later if extra links need to be
- * created.
+ *  dev_dbg_obj - Prints in debug mode a change on some object
  *
- * This function allocates a links array with enough space to hold at least
- * 'num_pads' + 'extra_links' elements. The media_entity::max_links field will
- * be set to the number of allocated elements.
+ * @event_name:	Name of the event to report. Could be __func__
+ * @gobj:	Pointer to the object
  *
- * The pads array is managed by the entity driver and passed to
- * media_entity_init() where its pointer will be stored in the entity structure.
+ * Enabled only if DEBUG or CONFIG_DYNAMIC_DEBUG. Otherwise, it
+ * won't produce any code.
  */
-int
-media_entity_init(struct media_entity *entity, u16 num_pads,
-		  struct media_pad *pads, u16 extra_links)
+static void dev_dbg_obj(const char *event_name,  struct media_gobj *gobj)
 {
-	struct media_link *links;
-	unsigned int max_links = num_pads + extra_links;
-	unsigned int i;
+#if defined(DEBUG) || defined (CONFIG_DYNAMIC_DEBUG)
+	switch (media_type(gobj)) {
+	case MEDIA_GRAPH_ENTITY:
+		dev_dbg(gobj->mdev->dev,
+			"%s id %u: entity '%s'\n",
+			event_name, media_id(gobj),
+			gobj_to_entity(gobj)->name);
+		break;
+	case MEDIA_GRAPH_LINK:
+	{
+		struct media_link *link = gobj_to_link(gobj);
+
+		dev_dbg(gobj->mdev->dev,
+			"%s id %u: %s link id %u ==> id %u\n",
+			event_name, media_id(gobj),
+			media_type(link->gobj0) == MEDIA_GRAPH_PAD ?
+				"data" : "interface",
+			media_id(link->gobj0),
+			media_id(link->gobj1));
+		break;
+	}
+	case MEDIA_GRAPH_PAD:
+	{
+		struct media_pad *pad = gobj_to_pad(gobj);
+
+		dev_dbg(gobj->mdev->dev,
+			"%s id %u: %s%spad '%s':%d\n",
+			event_name, media_id(gobj),
+			pad->flags & MEDIA_PAD_FL_SINK   ? "sink " : "",
+			pad->flags & MEDIA_PAD_FL_SOURCE ? "source " : "",
+			pad->entity->name, pad->index);
+		break;
+	}
+	case MEDIA_GRAPH_INTF_DEVNODE:
+	{
+		struct media_interface *intf = gobj_to_intf(gobj);
+		struct media_intf_devnode *devnode = intf_to_devnode(intf);
+
+		dev_dbg(gobj->mdev->dev,
+			"%s id %u: intf_devnode %s - major: %d, minor: %d\n",
+			event_name, media_id(gobj),
+			intf_type(intf),
+			devnode->major, devnode->minor);
+		break;
+	}
+	}
+#endif
+}
 
-	links = kzalloc(max_links * sizeof(links[0]), GFP_KERNEL);
-	if (links == NULL)
-		return -ENOMEM;
+void media_gobj_create(struct media_device *mdev,
+			   enum media_gobj_type type,
+			   struct media_gobj *gobj)
+{
+	BUG_ON(!mdev);
+
+	gobj->mdev = mdev;
+
+	/* Create a per-type unique object ID */
+	gobj->id = media_gobj_gen_id(type, ++mdev->id);
+
+	switch (type) {
+	case MEDIA_GRAPH_ENTITY:
+		list_add_tail(&gobj->list, &mdev->entities);
+		break;
+	case MEDIA_GRAPH_PAD:
+		list_add_tail(&gobj->list, &mdev->pads);
+		break;
+	case MEDIA_GRAPH_LINK:
+		list_add_tail(&gobj->list, &mdev->links);
+		break;
+	case MEDIA_GRAPH_INTF_DEVNODE:
+		list_add_tail(&gobj->list, &mdev->interfaces);
+		break;
+	}
+
+	mdev->topology_version++;
+
+	dev_dbg_obj(__func__, gobj);
+}
+
+void media_gobj_destroy(struct media_gobj *gobj)
+{
+	dev_dbg_obj(__func__, gobj);
+
+	gobj->mdev->topology_version++;
+
+	/* Remove the object from mdev list */
+	list_del(&gobj->list);
+}
+
+int media_entity_pads_init(struct media_entity *entity, u16 num_pads,
+			   struct media_pad *pads)
+{
+	struct media_device *mdev = entity->graph_obj.mdev;
+	unsigned int i;
 
-	entity->group_id = 0;
-	entity->max_links = max_links;
-	entity->num_links = 0;
-	entity->num_backlinks = 0;
 	entity->num_pads = num_pads;
 	entity->pads = pads;
-	entity->links = links;
+
+	if (mdev)
+		spin_lock(&mdev->lock);
 
 	for (i = 0; i < num_pads; i++) {
 		pads[i].entity = entity;
 		pads[i].index = i;
+		if (mdev)
+			media_gobj_create(mdev, MEDIA_GRAPH_PAD,
+					&entity->pads[i].graph_obj);
 	}
 
-	return 0;
-}
-EXPORT_SYMBOL_GPL(media_entity_init);
+	if (mdev)
+		spin_unlock(&mdev->lock);
 
-void
-media_entity_cleanup(struct media_entity *entity)
-{
-	kfree(entity->links);
+	return 0;
 }
-EXPORT_SYMBOL_GPL(media_entity_cleanup);
+EXPORT_SYMBOL_GPL(media_entity_pads_init);
 
 /* -----------------------------------------------------------------------------
  * Graph traversal
@@ -108,7 +241,7 @@ static void stack_push(struct media_entity_graph *graph,
 		return;
 	}
 	graph->top++;
-	graph->stack[graph->top].link = 0;
+	graph->stack[graph->top].link = entity->links.next;
 	graph->stack[graph->top].entity = entity;
 }
 
@@ -125,43 +258,51 @@ static struct media_entity *stack_pop(struct media_entity_graph *graph)
 #define link_top(en)	((en)->stack[(en)->top].link)
 #define stack_top(en)	((en)->stack[(en)->top].entity)
 
+/*
+ * TODO: Get rid of this.
+ */
+#define MEDIA_ENTITY_MAX_PADS		512
+
 /**
- * media_entity_graph_walk_start - Start walking the media graph at a given entity
+ * media_entity_graph_walk_init - Allocate resources for graph walk
  * @graph: Media graph structure that will be used to walk the graph
- * @entity: Starting entity
+ * @mdev: Media device
  *
- * This function initializes the graph traversal structure to walk the entities
- * graph starting at the given entity. The traversal structure must not be
- * modified by the caller during graph traversal. When done the structure can
- * safely be freed.
+ * Reserve resources for graph walk in media device's current
+ * state. The memory must be released using
+ * media_entity_graph_walk_free().
+ *
+ * Returns error on failure, zero on success.
  */
+__must_check int media_entity_graph_walk_init(
+	struct media_entity_graph *graph, struct media_device *mdev)
+{
+	return media_entity_enum_init(&graph->ent_enum, mdev);
+}
+EXPORT_SYMBOL_GPL(media_entity_graph_walk_init);
+
+/**
+ * media_entity_graph_walk_cleanup - Release resources related to graph walking
+ * @graph: Media graph structure that was used to walk the graph
+ */
+void media_entity_graph_walk_cleanup(struct media_entity_graph *graph)
+{
+	media_entity_enum_cleanup(&graph->ent_enum);
+}
+EXPORT_SYMBOL_GPL(media_entity_graph_walk_cleanup);
+
 void media_entity_graph_walk_start(struct media_entity_graph *graph,
 				   struct media_entity *entity)
 {
+	media_entity_enum_zero(&graph->ent_enum);
+	media_entity_enum_set(&graph->ent_enum, entity);
+
 	graph->top = 0;
 	graph->stack[graph->top].entity = NULL;
-	bitmap_zero(graph->entities, MEDIA_ENTITY_ENUM_MAX_ID);
-
-	if (WARN_ON(entity->id >= MEDIA_ENTITY_ENUM_MAX_ID))
-		return;
-
-	__set_bit(entity->id, graph->entities);
 	stack_push(graph, entity);
 }
 EXPORT_SYMBOL_GPL(media_entity_graph_walk_start);
 
-/**
- * media_entity_graph_walk_next - Get the next entity in the graph
- * @graph: Media graph structure
- *
- * Perform a depth-first traversal of the given media entities graph.
- *
- * The graph structure must have been previously initialized with a call to
- * media_entity_graph_walk_start().
- *
- * Return the next entity in the graph or NULL if the whole graph have been
- * traversed.
- */
 struct media_entity *
 media_entity_graph_walk_next(struct media_entity_graph *graph)
 {
@@ -173,30 +314,30 @@ media_entity_graph_walk_next(struct media_entity_graph *graph)
 	 * top of the stack until no more entities on the level can be
 	 * found.
 	 */
-	while (link_top(graph) < stack_top(graph)->num_links) {
+	while (link_top(graph) != &stack_top(graph)->links) {
 		struct media_entity *entity = stack_top(graph);
-		struct media_link *link = &entity->links[link_top(graph)];
+		struct media_link *link;
 		struct media_entity *next;
 
+		link = list_entry(link_top(graph), typeof(*link), list);
+
 		/* The link is not enabled so we do not follow. */
 		if (!(link->flags & MEDIA_LNK_FL_ENABLED)) {
-			link_top(graph)++;
+			link_top(graph) = link_top(graph)->next;
 			continue;
 		}
 
 		/* Get the entity in the other end of the link . */
 		next = media_entity_other(entity, link);
-		if (WARN_ON(next->id >= MEDIA_ENTITY_ENUM_MAX_ID))
-			return NULL;
 
 		/* Has the entity already been visited? */
-		if (__test_and_set_bit(next->id, graph->entities)) {
-			link_top(graph)++;
+		if (media_entity_enum_test_and_set(&graph->ent_enum, next)) {
+			link_top(graph) = link_top(graph)->next;
 			continue;
 		}
 
 		/* Push the new entity to stack and start over. */
-		link_top(graph)++;
+		link_top(graph) = link_top(graph)->next;
 		stack_push(graph, next);
 	}
 
@@ -208,39 +349,36 @@ EXPORT_SYMBOL_GPL(media_entity_graph_walk_next);
  * Pipeline management
  */
 
-/**
- * media_entity_pipeline_start - Mark a pipeline as streaming
- * @entity: Starting entity
- * @pipe: Media pipeline to be assigned to all entities in the pipeline.
- *
- * Mark all entities connected to a given entity through enabled links, either
- * directly or indirectly, as streaming. The given pipeline object is assigned to
- * every entity in the pipeline and stored in the media_entity pipe field.
- *
- * Calls to this function can be nested, in which case the same number of
- * media_entity_pipeline_stop() calls will be required to stop streaming. The
- * pipeline pointer must be identical for all nested calls to
- * media_entity_pipeline_start().
- */
 __must_check int media_entity_pipeline_start(struct media_entity *entity,
 					     struct media_pipeline *pipe)
 {
-	struct media_device *mdev = entity->parent;
-	struct media_entity_graph graph;
+	struct media_device *mdev = entity->graph_obj.mdev;
+	struct media_entity_graph *graph = &pipe->graph;
 	struct media_entity *entity_err = entity;
+	struct media_link *link;
 	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
 
-	media_entity_graph_walk_start(&graph, entity);
+	if (!pipe->streaming_count++) {
+		ret = media_entity_graph_walk_init(&pipe->graph, mdev);
+		if (ret)
+			goto error_graph_walk_start;
+	}
+
+	media_entity_graph_walk_start(&pipe->graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
+	while ((entity = media_entity_graph_walk_next(graph))) {
 		DECLARE_BITMAP(active, MEDIA_ENTITY_MAX_PADS);
 		DECLARE_BITMAP(has_no_links, MEDIA_ENTITY_MAX_PADS);
-		unsigned int i;
 
 		entity->stream_count++;
-		WARN_ON(entity->pipe && entity->pipe != pipe);
+
+		if (WARN_ON(entity->pipe && entity->pipe != pipe)) {
+			ret = -EBUSY;
+			goto error;
+		}
+
 		entity->pipe = pipe;
 
 		/* Already streaming --- no need to check. */
@@ -253,8 +391,7 @@ __must_check int media_entity_pipeline_start(struct media_entity *entity,
 		bitmap_zero(active, entity->num_pads);
 		bitmap_fill(has_no_links, entity->num_pads);
 
-		for (i = 0; i < entity->num_links; i++) {
-			struct media_link *link = &entity->links[i];
+		list_for_each_entry(link, &entity->links, list) {
 			struct media_pad *pad = link->sink->entity == entity
 						? link->sink : link->source;
 
@@ -280,7 +417,7 @@ __must_check int media_entity_pipeline_start(struct media_entity *entity,
 
 			ret = entity->ops->link_validate(link);
 			if (ret < 0 && ret != -ENOIOCTLCMD) {
-				dev_dbg(entity->parent->dev,
+				dev_dbg(entity->graph_obj.mdev->dev,
 					"link validation failed for \"%s\":%u -> \"%s\":%u, error %d\n",
 					link->source->entity->name,
 					link->source->index,
@@ -294,7 +431,7 @@ __must_check int media_entity_pipeline_start(struct media_entity *entity,
 
 		if (!bitmap_full(active, entity->num_pads)) {
 			ret = -EPIPE;
-			dev_dbg(entity->parent->dev,
+			dev_dbg(entity->graph_obj.mdev->dev,
 				"\"%s\":%u must be connected by an enabled link\n",
 				entity->name,
 				(unsigned)find_first_zero_bit(
@@ -312,9 +449,9 @@ error:
 	 * Link validation on graph failed. We revert what we did and
 	 * return the error.
 	 */
-	media_entity_graph_walk_start(&graph, entity_err);
+	media_entity_graph_walk_start(graph, entity_err);
 
-	while ((entity_err = media_entity_graph_walk_next(&graph))) {
+	while ((entity_err = media_entity_graph_walk_next(graph))) {
 		entity_err->stream_count--;
 		if (entity_err->stream_count == 0)
 			entity_err->pipe = NULL;
@@ -327,39 +464,36 @@ error:
 			break;
 	}
 
+error_graph_walk_start:
+	if (!--pipe->streaming_count)
+		media_entity_graph_walk_cleanup(graph);
+
 	mutex_unlock(&mdev->graph_mutex);
 
 	return ret;
 }
 EXPORT_SYMBOL_GPL(media_entity_pipeline_start);
 
-/**
- * media_entity_pipeline_stop - Mark a pipeline as not streaming
- * @entity: Starting entity
- *
- * Mark all entities connected to a given entity through enabled links, either
- * directly or indirectly, as not streaming. The media_entity pipe field is
- * reset to NULL.
- *
- * If multiple calls to media_entity_pipeline_start() have been made, the same
- * number of calls to this function are required to mark the pipeline as not
- * streaming.
- */
 void media_entity_pipeline_stop(struct media_entity *entity)
 {
-	struct media_device *mdev = entity->parent;
-	struct media_entity_graph graph;
+	struct media_device *mdev = entity->graph_obj.mdev;
+	struct media_entity_graph *graph = &entity->pipe->graph;
+	struct media_pipeline *pipe = entity->pipe;
 
 	mutex_lock(&mdev->graph_mutex);
 
-	media_entity_graph_walk_start(&graph, entity);
+	WARN_ON(!pipe->streaming_count);
+	media_entity_graph_walk_start(graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
+	while ((entity = media_entity_graph_walk_next(graph))) {
 		entity->stream_count--;
 		if (entity->stream_count == 0)
 			entity->pipe = NULL;
 	}
 
+	if (!--pipe->streaming_count)
+		media_entity_graph_walk_cleanup(graph);
+
 	mutex_unlock(&mdev->graph_mutex);
 }
 EXPORT_SYMBOL_GPL(media_entity_pipeline_stop);
@@ -368,44 +502,26 @@ EXPORT_SYMBOL_GPL(media_entity_pipeline_stop);
  * Module use count
  */
 
-/*
- * media_entity_get - Get a reference to the parent module
- * @entity: The entity
- *
- * Get a reference to the parent media device module.
- *
- * The function will return immediately if @entity is NULL.
- *
- * Return a pointer to the entity on success or NULL on failure.
- */
 struct media_entity *media_entity_get(struct media_entity *entity)
 {
 	if (entity == NULL)
 		return NULL;
 
-	if (entity->parent->dev &&
-	    !try_module_get(entity->parent->dev->driver->owner))
+	if (entity->graph_obj.mdev->dev &&
+	    !try_module_get(entity->graph_obj.mdev->dev->driver->owner))
 		return NULL;
 
 	return entity;
 }
 EXPORT_SYMBOL_GPL(media_entity_get);
 
-/*
- * media_entity_put - Release the reference to the parent module
- * @entity: The entity
- *
- * Release the reference count acquired by media_entity_get().
- *
- * The function will return immediately if @entity is NULL.
- */
 void media_entity_put(struct media_entity *entity)
 {
 	if (entity == NULL)
 		return;
 
-	if (entity->parent->dev)
-		module_put(entity->parent->dev->driver->owner);
+	if (entity->graph_obj.mdev->dev)
+		module_put(entity->graph_obj.mdev->dev->driver->owner);
 }
 EXPORT_SYMBOL_GPL(media_entity_put);
 
@@ -413,29 +529,52 @@ EXPORT_SYMBOL_GPL(media_entity_put);
  * Links management
  */
 
-static struct media_link *media_entity_add_link(struct media_entity *entity)
+static struct media_link *media_add_link(struct list_head *head)
 {
-	if (entity->num_links >= entity->max_links) {
-		struct media_link *links = entity->links;
-		unsigned int max_links = entity->max_links + 2;
-		unsigned int i;
+	struct media_link *link;
+
+	link = kzalloc(sizeof(*link), GFP_KERNEL);
+	if (link == NULL)
+		return NULL;
 
-		links = krealloc(links, max_links * sizeof(*links), GFP_KERNEL);
-		if (links == NULL)
-			return NULL;
+	list_add_tail(&link->list, head);
 
-		for (i = 0; i < entity->num_links; i++)
-			links[i].reverse->reverse = &links[i];
+	return link;
+}
 
-		entity->max_links = max_links;
-		entity->links = links;
-	}
+static void __media_entity_remove_link(struct media_entity *entity,
+				       struct media_link *link)
+{
+	struct media_link *rlink, *tmp;
+	struct media_entity *remote;
+
+	if (link->source->entity == entity)
+		remote = link->sink->entity;
+	else
+		remote = link->source->entity;
 
-	return &entity->links[entity->num_links++];
+	list_for_each_entry_safe(rlink, tmp, &remote->links, list) {
+		if (rlink != link->reverse)
+			continue;
+
+		if (link->source->entity == entity)
+			remote->num_backlinks--;
+
+		/* Remove the remote link */
+		list_del(&rlink->list);
+		media_gobj_destroy(&rlink->graph_obj);
+		kfree(rlink);
+
+		if (--remote->num_links == 0)
+			break;
+	}
+	list_del(&link->list);
+	media_gobj_destroy(&link->graph_obj);
+	kfree(link);
 }
 
 int
-media_entity_create_link(struct media_entity *source, u16 source_pad,
+media_create_pad_link(struct media_entity *source, u16 source_pad,
 			 struct media_entity *sink, u16 sink_pad, u32 flags)
 {
 	struct media_link *link;
@@ -445,68 +584,118 @@ media_entity_create_link(struct media_entity *source, u16 source_pad,
 	BUG_ON(source_pad >= source->num_pads);
 	BUG_ON(sink_pad >= sink->num_pads);
 
-	link = media_entity_add_link(source);
+	link = media_add_link(&source->links);
 	if (link == NULL)
 		return -ENOMEM;
 
 	link->source = &source->pads[source_pad];
 	link->sink = &sink->pads[sink_pad];
-	link->flags = flags;
+	link->flags = flags & ~MEDIA_LNK_FL_INTERFACE_LINK;
+
+	/* Initialize graph object embedded at the new link */
+	media_gobj_create(source->graph_obj.mdev, MEDIA_GRAPH_LINK,
+			&link->graph_obj);
 
 	/* Create the backlink. Backlinks are used to help graph traversal and
 	 * are not reported to userspace.
 	 */
-	backlink = media_entity_add_link(sink);
+	backlink = media_add_link(&sink->links);
 	if (backlink == NULL) {
-		source->num_links--;
+		__media_entity_remove_link(source, link);
 		return -ENOMEM;
 	}
 
 	backlink->source = &source->pads[source_pad];
 	backlink->sink = &sink->pads[sink_pad];
 	backlink->flags = flags;
+	backlink->is_backlink = true;
+
+	/* Initialize graph object embedded at the new link */
+	media_gobj_create(sink->graph_obj.mdev, MEDIA_GRAPH_LINK,
+			&backlink->graph_obj);
 
 	link->reverse = backlink;
 	backlink->reverse = link;
 
 	sink->num_backlinks++;
+	sink->num_links++;
+	source->num_links++;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(media_entity_create_link);
-
-void __media_entity_remove_links(struct media_entity *entity)
+EXPORT_SYMBOL_GPL(media_create_pad_link);
+
+int media_create_pad_links(const struct media_device *mdev,
+			   const u32 source_function,
+			   struct media_entity *source,
+			   const u16 source_pad,
+			   const u32 sink_function,
+			   struct media_entity *sink,
+			   const u16 sink_pad,
+			   u32 flags,
+			   const bool allow_both_undefined)
 {
-	unsigned int i;
-
-	for (i = 0; i < entity->num_links; i++) {
-		struct media_link *link = &entity->links[i];
-		struct media_entity *remote;
-		unsigned int r = 0;
-
-		if (link->source->entity == entity)
-			remote = link->sink->entity;
-		else
-			remote = link->source->entity;
-
-		while (r < remote->num_links) {
-			struct media_link *rlink = &remote->links[r];
+	struct media_entity *entity;
+	unsigned function;
+	int ret;
 
-			if (rlink != link->reverse) {
-				r++;
+	/* Trivial case: 1:1 relation */
+	if (source && sink)
+		return media_create_pad_link(source, source_pad,
+					     sink, sink_pad, flags);
+
+	/* Worse case scenario: n:n relation */
+	if (!source && !sink) {
+		if (!allow_both_undefined)
+			return 0;
+		media_device_for_each_entity(source, mdev) {
+			if (source->function != source_function)
 				continue;
+			media_device_for_each_entity(sink, mdev) {
+				if (sink->function != sink_function)
+					continue;
+				ret = media_create_pad_link(source, source_pad,
+							    sink, sink_pad,
+							    flags);
+				if (ret)
+					return ret;
+				flags &= ~(MEDIA_LNK_FL_ENABLED |
+					   MEDIA_LNK_FL_IMMUTABLE);
 			}
+		}
+		return 0;
+	}
 
-			if (link->source->entity == entity)
-				remote->num_backlinks--;
+	/* Handle 1:n and n:1 cases */
+	if (source)
+		function = sink_function;
+	else
+		function = source_function;
 
-			if (--remote->num_links == 0)
-				break;
+	media_device_for_each_entity(entity, mdev) {
+		if (entity->function != function)
+			continue;
 
-			/* Insert last entry in place of the dropped link. */
-			*rlink = remote->links[remote->num_links];
-		}
+		if (source)
+			ret = media_create_pad_link(source, source_pad,
+						    entity, sink_pad, flags);
+		else
+			ret = media_create_pad_link(entity, source_pad,
+						    sink, sink_pad, flags);
+		if (ret)
+			return ret;
+		flags &= ~(MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
 	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(media_create_pad_links);
+
+void __media_entity_remove_links(struct media_entity *entity)
+{
+	struct media_link *link, *tmp;
+
+	list_for_each_entry_safe(link, tmp, &entity->links, list)
+		__media_entity_remove_link(entity, link);
 
 	entity->num_links = 0;
 	entity->num_backlinks = 0;
@@ -515,13 +704,15 @@ EXPORT_SYMBOL_GPL(__media_entity_remove_links);
 
 void media_entity_remove_links(struct media_entity *entity)
 {
+	struct media_device *mdev = entity->graph_obj.mdev;
+
 	/* Do nothing if the entity is not registered. */
-	if (entity->parent == NULL)
+	if (mdev == NULL)
 		return;
 
-	mutex_lock(&entity->parent->graph_mutex);
+	spin_lock(&mdev->lock);
 	__media_entity_remove_links(entity);
-	mutex_unlock(&entity->parent->graph_mutex);
+	spin_unlock(&mdev->lock);
 }
 EXPORT_SYMBOL_GPL(media_entity_remove_links);
 
@@ -549,20 +740,6 @@ static int __media_entity_setup_link_notify(struct media_link *link, u32 flags)
 	return 0;
 }
 
-/**
- * __media_entity_setup_link - Configure a media link
- * @link: The link being configured
- * @flags: Link configuration flags
- *
- * The bulk of link setup is handled by the two entities connected through the
- * link. This function notifies both entities of the link configuration change.
- *
- * If the link is immutable or if the current and new configuration are
- * identical, return immediately.
- *
- * The user is expected to hold link->source->parent->mutex. If not,
- * media_entity_setup_link() should be used instead.
- */
 int __media_entity_setup_link(struct media_link *link, u32 flags)
 {
 	const u32 mask = MEDIA_LNK_FL_ENABLED;
@@ -590,7 +767,7 @@ int __media_entity_setup_link(struct media_link *link, u32 flags)
 	    (source->stream_count || sink->stream_count))
 		return -EBUSY;
 
-	mdev = source->parent;
+	mdev = source->graph_obj.mdev;
 
 	if (mdev->link_notify) {
 		ret = mdev->link_notify(link, flags,
@@ -611,31 +788,20 @@ int media_entity_setup_link(struct media_link *link, u32 flags)
 {
 	int ret;
 
-	mutex_lock(&link->source->entity->parent->graph_mutex);
+	mutex_lock(&link->graph_obj.mdev->graph_mutex);
 	ret = __media_entity_setup_link(link, flags);
-	mutex_unlock(&link->source->entity->parent->graph_mutex);
+	mutex_unlock(&link->graph_obj.mdev->graph_mutex);
 
 	return ret;
 }
 EXPORT_SYMBOL_GPL(media_entity_setup_link);
 
-/**
- * media_entity_find_link - Find a link between two pads
- * @source: Source pad
- * @sink: Sink pad
- *
- * Return a pointer to the link between the two entities. If no such link
- * exists, return NULL.
- */
 struct media_link *
 media_entity_find_link(struct media_pad *source, struct media_pad *sink)
 {
 	struct media_link *link;
-	unsigned int i;
-
-	for (i = 0; i < source->entity->num_links; ++i) {
-		link = &source->entity->links[i];
 
+	list_for_each_entry(link, &source->entity->links, list) {
 		if (link->source->entity == source->entity &&
 		    link->source->index == source->index &&
 		    link->sink->entity == sink->entity &&
@@ -647,23 +813,11 @@ media_entity_find_link(struct media_pad *source, struct media_pad *sink)
 }
 EXPORT_SYMBOL_GPL(media_entity_find_link);
 
-/**
- * media_entity_remote_pad - Find the pad at the remote end of a link
- * @pad: Pad at the local end of the link
- *
- * Search for a remote pad connected to the given pad by iterating over all
- * links originating or terminating at that pad until an enabled link is found.
- *
- * Return a pointer to the pad at the remote end of the first found enabled
- * link, or NULL if no enabled link has been found.
- */
 struct media_pad *media_entity_remote_pad(struct media_pad *pad)
 {
-	unsigned int i;
-
-	for (i = 0; i < pad->entity->num_links; i++) {
-		struct media_link *link = &pad->entity->links[i];
+	struct media_link *link;
 
+	list_for_each_entry(link, &pad->entity->links, list) {
 		if (!(link->flags & MEDIA_LNK_FL_ENABLED))
 			continue;
 
@@ -678,3 +832,113 @@ struct media_pad *media_entity_remote_pad(struct media_pad *pad)
 
 }
 EXPORT_SYMBOL_GPL(media_entity_remote_pad);
+
+static void media_interface_init(struct media_device *mdev,
+				 struct media_interface *intf,
+				 u32 gobj_type,
+				 u32 intf_type, u32 flags)
+{
+	intf->type = intf_type;
+	intf->flags = flags;
+	INIT_LIST_HEAD(&intf->links);
+
+	media_gobj_create(mdev, gobj_type, &intf->graph_obj);
+}
+
+/* Functions related to the media interface via device nodes */
+
+struct media_intf_devnode *media_devnode_create(struct media_device *mdev,
+						u32 type, u32 flags,
+						u32 major, u32 minor)
+{
+	struct media_intf_devnode *devnode;
+
+	devnode = kzalloc(sizeof(*devnode), GFP_KERNEL);
+	if (!devnode)
+		return NULL;
+
+	devnode->major = major;
+	devnode->minor = minor;
+
+	media_interface_init(mdev, &devnode->intf, MEDIA_GRAPH_INTF_DEVNODE,
+			     type, flags);
+
+	return devnode;
+}
+EXPORT_SYMBOL_GPL(media_devnode_create);
+
+void media_devnode_remove(struct media_intf_devnode *devnode)
+{
+	media_remove_intf_links(&devnode->intf);
+	media_gobj_destroy(&devnode->intf.graph_obj);
+	kfree(devnode);
+}
+EXPORT_SYMBOL_GPL(media_devnode_remove);
+
+struct media_link *media_create_intf_link(struct media_entity *entity,
+					    struct media_interface *intf,
+					    u32 flags)
+{
+	struct media_link *link;
+
+	link = media_add_link(&intf->links);
+	if (link == NULL)
+		return NULL;
+
+	link->intf = intf;
+	link->entity = entity;
+	link->flags = flags | MEDIA_LNK_FL_INTERFACE_LINK;
+
+	/* Initialize graph object embedded at the new link */
+	media_gobj_create(intf->graph_obj.mdev, MEDIA_GRAPH_LINK,
+			&link->graph_obj);
+
+	return link;
+}
+EXPORT_SYMBOL_GPL(media_create_intf_link);
+
+void __media_remove_intf_link(struct media_link *link)
+{
+	list_del(&link->list);
+	media_gobj_destroy(&link->graph_obj);
+	kfree(link);
+}
+EXPORT_SYMBOL_GPL(__media_remove_intf_link);
+
+void media_remove_intf_link(struct media_link *link)
+{
+	struct media_device *mdev = link->graph_obj.mdev;
+
+	/* Do nothing if the intf is not registered. */
+	if (mdev == NULL)
+		return;
+
+	spin_lock(&mdev->lock);
+	__media_remove_intf_link(link);
+	spin_unlock(&mdev->lock);
+}
+EXPORT_SYMBOL_GPL(media_remove_intf_link);
+
+void __media_remove_intf_links(struct media_interface *intf)
+{
+	struct media_link *link, *tmp;
+
+	list_for_each_entry_safe(link, tmp, &intf->links, list)
+		__media_remove_intf_link(link);
+
+}
+EXPORT_SYMBOL_GPL(__media_remove_intf_links);
+
+void media_remove_intf_links(struct media_interface *intf)
+{
+	struct media_device *mdev = intf->graph_obj.mdev;
+
+	/* Do nothing if the intf is not registered. */
+	if (mdev == NULL)
+		return;
+
+	spin_lock(&mdev->lock);
+	__media_remove_intf_links(intf);
+	spin_unlock(&mdev->lock);
+}
+EXPORT_SYMBOL_GPL(media_remove_intf_links);
diff --git a/drivers/media/pci/bt8xx/dst_ca.c b/drivers/media/pci/bt8xx/dst_ca.c
index c5cc14ef8347..da8b414fd824 100644
--- a/drivers/media/pci/bt8xx/dst_ca.c
+++ b/drivers/media/pci/bt8xx/dst_ca.c
@@ -705,7 +705,8 @@ struct dvb_device *dst_ca_attach(struct dst_state *dst, struct dvb_adapter *dvb_
 	struct dvb_device *dvbdev;
 
 	dprintk(verbose, DST_CA_ERROR, 1, "registering DST-CA device");
-	if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst, DVB_DEVICE_CA) == 0) {
+	if (dvb_register_device(dvb_adapter, &dvbdev, &dvbdev_ca, dst,
+				DVB_DEVICE_CA, 0) == 0) {
 		dst->dst_ca = dvbdev;
 		return dst->dst_ca;
 	}
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index fba5b40a869c..9d5b314142f1 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -1065,7 +1065,7 @@ static int ddb_ci_attach(struct ddb_port *port)
 			    port->en, 0, 1);
 	ret = dvb_register_device(&port->output->adap, &port->output->dev,
 				  &dvbdev_ci, (void *) port->output,
-				  DVB_DEVICE_SEC);
+				  DVB_DEVICE_SEC, 0);
 	return ret;
 }
 
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index 81e1a5e26efb..525ebfefeee8 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -387,7 +387,7 @@ static int netup_unidvb_dvb_init(struct netup_unidvb_dev *ndev,
 		vb2_dvb_alloc_frontend(
 			&ndev->frontends[num], 3) == NULL) {
 		dev_dbg(&ndev->pci_dev->dev,
-			"%s(): unable to to alllocate vb2_dvb_frontend\n",
+			"%s(): unable to allocate vb2_dvb_frontend\n",
 			__func__);
 		return -ENOMEM;
 	}
diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 1b92d836a564..4e924e2d1638 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1513,7 +1513,7 @@ static int init_channel(struct ngene_channel *chan)
 		set_transfer(&chan->dev->channel[2], 1);
 		dvb_register_device(adapter, &chan->ci_dev,
 				    &ngene_dvbdev_ci, (void *) chan,
-				    DVB_DEVICE_SEC);
+				    DVB_DEVICE_SEC, 0);
 		if (!chan->ci_dev)
 			goto err;
 	}
diff --git a/drivers/media/pci/ttpci/av7110.c b/drivers/media/pci/ttpci/av7110.c
index 5e18b6796ed9..a69dc6a0752b 100644
--- a/drivers/media/pci/ttpci/av7110.c
+++ b/drivers/media/pci/ttpci/av7110.c
@@ -1358,7 +1358,7 @@ static int av7110_register(struct av7110 *av7110)
 
 #ifdef CONFIG_DVB_AV7110_OSD
 	dvb_register_device(&av7110->dvb_adapter, &av7110->osd_dev,
-			    &dvbdev_osd, av7110, DVB_DEVICE_OSD);
+			    &dvbdev_osd, av7110, DVB_DEVICE_OSD, 0);
 #endif
 
 	dvb_net_init(&av7110->dvb_adapter, &av7110->dvb_net, &dvbdemux->dmx);
diff --git a/drivers/media/pci/ttpci/av7110_av.c b/drivers/media/pci/ttpci/av7110_av.c
index 6fc748e22017..26c5696c193b 100644
--- a/drivers/media/pci/ttpci/av7110_av.c
+++ b/drivers/media/pci/ttpci/av7110_av.c
@@ -1594,10 +1594,10 @@ int av7110_av_register(struct av7110 *av7110)
 	memset(&av7110->video_size, 0, sizeof (video_size_t));
 
 	dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
-			    &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
+			    &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
 
 	dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
-			    &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
+			    &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
 
 	return 0;
 }
diff --git a/drivers/media/pci/ttpci/av7110_ca.c b/drivers/media/pci/ttpci/av7110_ca.c
index bc4c65ffd4b9..96a130fb4595 100644
--- a/drivers/media/pci/ttpci/av7110_ca.c
+++ b/drivers/media/pci/ttpci/av7110_ca.c
@@ -378,7 +378,7 @@ static struct dvb_device dvbdev_ca = {
 int av7110_ca_register(struct av7110 *av7110)
 {
 	return dvb_register_device(&av7110->dvb_adapter, &av7110->ca_dev,
-				   &dvbdev_ca, av7110, DVB_DEVICE_CA);
+				   &dvbdev_ca, av7110, DVB_DEVICE_CA, 0);
 }
 
 void av7110_ca_unregister(struct av7110 *av7110)
diff --git a/drivers/media/platform/exynos4-is/common.c b/drivers/media/platform/exynos4-is/common.c
index b6716c57b5db..b90f5bb15517 100644
--- a/drivers/media/platform/exynos4-is/common.c
+++ b/drivers/media/platform/exynos4-is/common.c
@@ -22,8 +22,7 @@ struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
 	while (pad->flags & MEDIA_PAD_FL_SINK) {
 		/* source pad */
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		sd = media_entity_to_v4l2_subdev(pad->entity);
diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
index 0d549a6c8a13..bf47d3b9cbe7 100644
--- a/drivers/media/platform/exynos4-is/fimc-capture.c
+++ b/drivers/media/platform/exynos4-is/fimc-capture.c
@@ -1136,8 +1136,7 @@ static int fimc_pipeline_validate(struct fimc_dev *fimc)
 			}
 		}
 
-		if (src_pad == NULL ||
-		    media_entity_type(src_pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity))
 			break;
 
 		/* Don't call FIMC subdev operation to avoid nested locking */
@@ -1392,7 +1391,7 @@ static int fimc_link_setup(struct media_entity *entity,
 	struct fimc_vid_cap *vc = &fimc->vid_cap;
 	struct v4l2_subdev *sensor;
 
-	if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!is_media_entity_v4l2_subdev(remote->entity))
 		return -EINVAL;
 
 	if (WARN_ON(fimc == NULL))
@@ -1800,7 +1799,7 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
 	vid_cap->wb_fmt.code = fmt->mbus_code;
 
 	vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0);
+	ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
 	if (ret)
 		goto err_free_ctx;
 
@@ -1892,8 +1891,8 @@ int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
 	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
-				fimc->vid_cap.sd_pads, 0);
+	ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
+				fimc->vid_cap.sd_pads);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/exynos4-is/fimc-isp-video.c b/drivers/media/platform/exynos4-is/fimc-isp-video.c
index 0dd22ec66694..bf9261eb57a1 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -287,7 +287,7 @@ static int isp_video_open(struct file *file)
 		goto rel_fh;
 
 	if (v4l2_fh_is_singular_file(file)) {
-		mutex_lock(&me->parent->graph_mutex);
+		mutex_lock(&me->graph_obj.mdev->graph_mutex);
 
 		ret = fimc_pipeline_call(ve, open, me, true);
 
@@ -295,7 +295,7 @@ static int isp_video_open(struct file *file)
 		if (ret == 0)
 			me->use_count++;
 
-		mutex_unlock(&me->parent->graph_mutex);
+		mutex_unlock(&me->graph_obj.mdev->graph_mutex);
 	}
 	if (!ret)
 		goto unlock;
@@ -311,7 +311,7 @@ static int isp_video_release(struct file *file)
 	struct fimc_isp *isp = video_drvdata(file);
 	struct fimc_is_video *ivc = &isp->video_capture;
 	struct media_entity *entity = &ivc->ve.vdev.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 
 	mutex_lock(&isp->video_lock);
 
@@ -466,8 +466,7 @@ static int isp_video_pipeline_validate(struct fimc_isp *isp)
 
 		/* Retrieve format at the source pad */
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		sd = media_entity_to_v4l2_subdev(pad->entity);
@@ -617,7 +616,7 @@ int fimc_isp_video_device_register(struct fimc_isp *isp,
 	vdev->lock = &isp->video_lock;
 
 	iv->pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vdev->entity, 1, &iv->pad, 0);
+	ret = media_entity_pads_init(&vdev->entity, 1, &iv->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c
index 5d78f5716f3b..293b807020c4 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp.c
@@ -708,8 +708,8 @@ int fimc_isp_subdev_create(struct fimc_isp *isp)
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_FIFO].flags = MEDIA_PAD_FL_SOURCE;
 	isp->subdev_pads[FIMC_ISP_SD_PAD_SRC_DMA].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
-				isp->subdev_pads, 0);
+	ret = media_entity_pads_init(&sd->entity, FIMC_ISP_SD_PADS_NUM,
+				isp->subdev_pads);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
index 639ee710499e..e85649147dc8 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -494,7 +494,7 @@ static int fimc_lite_open(struct file *file)
 	    atomic_read(&fimc->out_path) != FIMC_IO_DMA)
 		goto unlock;
 
-	mutex_lock(&me->parent->graph_mutex);
+	mutex_lock(&me->graph_obj.mdev->graph_mutex);
 
 	ret = fimc_pipeline_call(&fimc->ve, open, me, true);
 
@@ -502,7 +502,7 @@ static int fimc_lite_open(struct file *file)
 	if (ret == 0)
 		me->use_count++;
 
-	mutex_unlock(&me->parent->graph_mutex);
+	mutex_unlock(&me->graph_obj.mdev->graph_mutex);
 
 	if (!ret) {
 		fimc_lite_clear_event_counters(fimc);
@@ -535,9 +535,9 @@ static int fimc_lite_release(struct file *file)
 		fimc_pipeline_call(&fimc->ve, close);
 		clear_bit(ST_FLITE_IN_USE, &fimc->state);
 
-		mutex_lock(&entity->parent->graph_mutex);
+		mutex_lock(&entity->graph_obj.mdev->graph_mutex);
 		entity->use_count--;
-		mutex_unlock(&entity->parent->graph_mutex);
+		mutex_unlock(&entity->graph_obj.mdev->graph_mutex);
 	}
 
 	_vb2_fop_release(file, NULL);
@@ -808,8 +808,7 @@ static int fimc_pipeline_validate(struct fimc_lite *fimc)
 		}
 		/* Retrieve format at the source pad */
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		sd = media_entity_to_v4l2_subdev(pad->entity);
@@ -982,7 +981,6 @@ static int fimc_lite_link_setup(struct media_entity *entity,
 {
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
-	unsigned int remote_ent_type = media_entity_type(remote->entity);
 	int ret = 0;
 
 	if (WARN_ON(fimc == NULL))
@@ -994,7 +992,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,
 
 	switch (local->index) {
 	case FLITE_SD_PAD_SINK:
-		if (remote_ent_type != MEDIA_ENT_T_V4L2_SUBDEV) {
+		if (!is_media_entity_v4l2_subdev(remote->entity)) {
 			ret = -EINVAL;
 			break;
 		}
@@ -1012,7 +1010,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,
 	case FLITE_SD_PAD_SOURCE_DMA:
 		if (!(flags & MEDIA_LNK_FL_ENABLED))
 			atomic_set(&fimc->out_path, FIMC_IO_NONE);
-		else if (remote_ent_type == MEDIA_ENT_T_DEVNODE)
+		else if (is_media_entity_v4l2_io(remote->entity))
 			atomic_set(&fimc->out_path, FIMC_IO_DMA);
 		else
 			ret = -EINVAL;
@@ -1021,7 +1019,7 @@ static int fimc_lite_link_setup(struct media_entity *entity,
 	case FLITE_SD_PAD_SOURCE_ISP:
 		if (!(flags & MEDIA_LNK_FL_ENABLED))
 			atomic_set(&fimc->out_path, FIMC_IO_NONE);
-		else if (remote_ent_type == MEDIA_ENT_T_V4L2_SUBDEV)
+		else if (is_media_entity_v4l2_subdev(remote->entity))
 			atomic_set(&fimc->out_path, FIMC_IO_ISP);
 		else
 			ret = -EINVAL;
@@ -1316,7 +1314,7 @@ static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
 		return ret;
 
 	fimc->vd_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad, 0);
+	ret = media_entity_pads_init(&vfd->entity, 1, &fimc->vd_pad);
 	if (ret < 0)
 		return ret;
 
@@ -1430,8 +1428,8 @@ static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc)
 	fimc->subdev_pads[FLITE_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	fimc->subdev_pads[FLITE_SD_PAD_SOURCE_DMA].flags = MEDIA_PAD_FL_SOURCE;
 	fimc->subdev_pads[FLITE_SD_PAD_SOURCE_ISP].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&sd->entity, FLITE_SD_PADS_NUM,
-				fimc->subdev_pads, 0);
+	ret = media_entity_pads_init(&sd->entity, FLITE_SD_PADS_NUM,
+				fimc->subdev_pads);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/exynos4-is/fimc-m2m.c b/drivers/media/platform/exynos4-is/fimc-m2m.c
index 5aa857c7b631..55ec4c99d484 100644
--- a/drivers/media/platform/exynos4-is/fimc-m2m.c
+++ b/drivers/media/platform/exynos4-is/fimc-m2m.c
@@ -739,7 +739,7 @@ int fimc_register_m2m_device(struct fimc_dev *fimc,
 		return PTR_ERR(fimc->m2m.m2m_dev);
 	}
 
-	ret = media_entity_init(&vfd->entity, 0, NULL, 0);
+	ret = media_entity_pads_init(&vfd->entity, 0, NULL);
 	if (ret)
 		goto err_me;
 
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 9481ce3201a2..f3b2dd30ec77 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -88,8 +88,7 @@ static void fimc_pipeline_prepare(struct fimc_pipeline *p,
 				break;
 		}
 
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 		sd = media_entity_to_v4l2_subdev(pad->entity);
 
@@ -729,7 +728,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
 		flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0;
 
 		sink = &fmd->fimc[i]->vid_cap.subdev.entity;
-		ret = media_entity_create_link(source, pad, sink,
+		ret = media_create_pad_link(source, pad, sink,
 					      FIMC_SD_PAD_SINK_CAM, flags);
 		if (ret)
 			return ret;
@@ -749,7 +748,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd,
 			continue;
 
 		sink = &fmd->fimc_lite[i]->subdev.entity;
-		ret = media_entity_create_link(source, pad, sink,
+		ret = media_create_pad_link(source, pad, sink,
 					       FLITE_SD_PAD_SINK, 0);
 		if (ret)
 			return ret;
@@ -781,13 +780,13 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd)
 		source = &fimc->subdev.entity;
 		sink = &fimc->ve.vdev.entity;
 		/* FIMC-LITE's subdev and video node */
-		ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_DMA,
+		ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA,
 					       sink, 0, 0);
 		if (ret)
 			break;
 		/* Link from FIMC-LITE to IS-ISP subdev */
 		sink = &fmd->fimc_is->isp.subdev.entity;
-		ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_ISP,
+		ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP,
 					       sink, 0, 0);
 		if (ret)
 			break;
@@ -811,7 +810,7 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd)
 
 		/* Link from FIMC-IS-ISP subdev to FIMC */
 		sink = &fmd->fimc[i]->vid_cap.subdev.entity;
-		ret = media_entity_create_link(source, FIMC_ISP_SD_PAD_SRC_FIFO,
+		ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO,
 					       sink, FIMC_SD_PAD_SINK_FIFO, 0);
 		if (ret)
 			return ret;
@@ -824,7 +823,7 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd)
 	if (sink->num_pads == 0)
 		return 0;
 
-	return media_entity_create_link(source, FIMC_ISP_SD_PAD_SRC_DMA,
+	return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA,
 					sink, 0, 0);
 }
 
@@ -873,7 +872,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
 				return -EINVAL;
 
 			pad = sensor->entity.num_pads - 1;
-			ret = media_entity_create_link(&sensor->entity, pad,
+			ret = media_create_pad_link(&sensor->entity, pad,
 					      &csis->entity, CSIS_PAD_SINK,
 					      MEDIA_LNK_FL_IMMUTABLE |
 					      MEDIA_LNK_FL_ENABLED);
@@ -927,7 +926,7 @@ static int fimc_md_create_links(struct fimc_md *fmd)
 		source = &fmd->fimc[i]->vid_cap.subdev.entity;
 		sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity;
 
-		ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE,
+		ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE,
 					      sink, 0, flags);
 		if (ret)
 			break;
@@ -1046,11 +1045,11 @@ static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable)
 	return ret;
 }
 
-/* Locking: called with entity->parent->graph_mutex mutex held. */
-static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
+/* Locking: called with entity->graph_obj.mdev->graph_mutex mutex held. */
+static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable,
+				      struct media_entity_graph *graph)
 {
 	struct media_entity *entity_err = entity;
-	struct media_entity_graph graph;
 	int ret;
 
 	/*
@@ -1059,10 +1058,10 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
 	 * through active links. This is needed as we cannot power on/off the
 	 * subdevs in random order.
 	 */
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+	while ((entity = media_entity_graph_walk_next(graph))) {
+		if (!is_media_entity_v4l2_io(entity))
 			continue;
 
 		ret  = __fimc_md_modify_pipeline(entity, enable);
@@ -1072,11 +1071,12 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
 	}
 
 	return 0;
- err:
-	media_entity_graph_walk_start(&graph, entity_err);
 
-	while ((entity_err = media_entity_graph_walk_next(&graph))) {
-		if (media_entity_type(entity_err) != MEDIA_ENT_T_DEVNODE)
+err:
+	media_entity_graph_walk_start(graph, entity_err);
+
+	while ((entity_err = media_entity_graph_walk_next(graph))) {
+		if (!is_media_entity_v4l2_io(entity_err))
 			continue;
 
 		__fimc_md_modify_pipeline(entity_err, !enable);
@@ -1091,21 +1091,29 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
 static int fimc_md_link_notify(struct media_link *link, unsigned int flags,
 				unsigned int notification)
 {
+	struct media_entity_graph *graph =
+		&container_of(link->graph_obj.mdev, struct fimc_md,
+			      media_dev)->link_setup_graph;
 	struct media_entity *sink = link->sink->entity;
 	int ret = 0;
 
 	/* Before link disconnection */
 	if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) {
+		ret = media_entity_graph_walk_init(graph,
+						   link->graph_obj.mdev);
+		if (ret)
+			return ret;
 		if (!(flags & MEDIA_LNK_FL_ENABLED))
-			ret = __fimc_md_modify_pipelines(sink, false);
+			ret = __fimc_md_modify_pipelines(sink, false, graph);
 #if 0
 		else
 			/* TODO: Link state change validation */
 #endif
 	/* After link activation */
-	} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
-		   (link->flags & MEDIA_LNK_FL_ENABLED)) {
-		ret = __fimc_md_modify_pipelines(sink, true);
+	} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) {
+		if (link->flags & MEDIA_LNK_FL_ENABLED)
+			ret = __fimc_md_modify_pipelines(sink, true, graph);
+		media_entity_graph_walk_cleanup(graph);
 	}
 
 	return ret ? -EPIPE : 0;
@@ -1314,7 +1322,10 @@ static int subdev_notifier_complete(struct v4l2_async_notifier *notifier)
 	ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev);
 unlock:
 	mutex_unlock(&fmd->media_dev.graph_mutex);
-	return ret;
+	if (ret < 0)
+		return ret;
+
+	return media_device_register(&fmd->media_dev);
 }
 
 static int fimc_md_probe(struct platform_device *pdev)
@@ -1345,18 +1356,14 @@ static int fimc_md_probe(struct platform_device *pdev)
 	fmd->use_isp = fimc_md_is_isp_available(dev->of_node);
 	fmd->user_subdev_api = true;
 
+	media_device_init(&fmd->media_dev);
+
 	ret = v4l2_device_register(dev, &fmd->v4l2_dev);
 	if (ret < 0) {
 		v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret);
 		return ret;
 	}
 
-	ret = media_device_register(&fmd->media_dev);
-	if (ret < 0) {
-		v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret);
-		goto err_v4l2_dev;
-	}
-
 	ret = fimc_md_get_clocks(fmd);
 	if (ret)
 		goto err_md;
@@ -1425,8 +1432,7 @@ err_clk:
 err_m_ent:
 	fimc_md_unregister_entities(fmd);
 err_md:
-	media_device_unregister(&fmd->media_dev);
-err_v4l2_dev:
+	media_device_cleanup(&fmd->media_dev);
 	v4l2_device_unregister(&fmd->v4l2_dev);
 	return ret;
 }
@@ -1446,6 +1452,7 @@ static int fimc_md_remove(struct platform_device *pdev)
 	fimc_md_unregister_entities(fmd);
 	fimc_md_pipelines_free(fmd);
 	media_device_unregister(&fmd->media_dev);
+	media_device_cleanup(&fmd->media_dev);
 	fimc_md_put_clocks(fmd);
 
 	return 0;
diff --git a/drivers/media/platform/exynos4-is/media-dev.h b/drivers/media/platform/exynos4-is/media-dev.h
index 93a96126929b..ed122cb2dd74 100644
--- a/drivers/media/platform/exynos4-is/media-dev.h
+++ b/drivers/media/platform/exynos4-is/media-dev.h
@@ -154,6 +154,7 @@ struct fimc_md {
 	bool user_subdev_api;
 	spinlock_t slock;
 	struct list_head pipelines;
+	struct media_entity_graph link_setup_graph;
 };
 
 static inline
@@ -164,8 +165,8 @@ struct fimc_sensor_info *source_to_sensor_info(struct fimc_source_info *si)
 
 static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me)
 {
-	return me->parent == NULL ? NULL :
-		container_of(me->parent, struct fimc_md, media_dev);
+	return me->graph_obj.mdev == NULL ? NULL :
+		container_of(me->graph_obj.mdev, struct fimc_md, media_dev);
 }
 
 static inline struct fimc_md *notifier_to_fimc_md(struct v4l2_async_notifier *n)
@@ -175,12 +176,12 @@ static inline struct fimc_md *notifier_to_fimc_md(struct v4l2_async_notifier *n)
 
 static inline void fimc_md_graph_lock(struct exynos_video_entity *ve)
 {
-	mutex_lock(&ve->vdev.entity.parent->graph_mutex);
+	mutex_lock(&ve->vdev.entity.graph_obj.mdev->graph_mutex);
 }
 
 static inline void fimc_md_graph_unlock(struct exynos_video_entity *ve)
 {
-	mutex_unlock(&ve->vdev.entity.parent->graph_mutex);
+	mutex_unlock(&ve->vdev.entity.graph_obj.mdev->graph_mutex);
 }
 
 int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on);
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index ff5dabf24694..ac5e50e595be 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -866,8 +866,8 @@ static int s5pcsis_probe(struct platform_device *pdev)
 
 	state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
-	ret = media_entity_init(&state->sd.entity,
-				CSIS_PADS_NUM, state->pads, 0);
+	ret = media_entity_pads_init(&state->sd.entity,
+				CSIS_PADS_NUM, state->pads);
 	if (ret < 0)
 		goto e_clkdis;
 
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 56e683b19a73..0bcfa553c1aa 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -683,15 +683,15 @@ static irqreturn_t isp_isr(int irq, void *_isp)
  *
  * Return the total number of users of all video device nodes in the pipeline.
  */
-static int isp_pipeline_pm_use_count(struct media_entity *entity)
+static int isp_pipeline_pm_use_count(struct media_entity *entity,
+	struct media_entity_graph *graph)
 {
-	struct media_entity_graph graph;
 	int use = 0;
 
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
-		if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+	while ((entity = media_entity_graph_walk_next(graph))) {
+		if (is_media_entity_v4l2_io(entity))
 			use += entity->use_count;
 	}
 
@@ -714,7 +714,7 @@ static int isp_pipeline_pm_power_one(struct media_entity *entity, int change)
 	struct v4l2_subdev *subdev;
 	int ret;
 
-	subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV
+	subdev = is_media_entity_v4l2_subdev(entity)
 	       ? media_entity_to_v4l2_subdev(entity) : NULL;
 
 	if (entity->use_count == 0 && change > 0 && subdev != NULL) {
@@ -742,29 +742,29 @@ static int isp_pipeline_pm_power_one(struct media_entity *entity, int change)
  *
  * Return 0 on success or a negative error code on failure.
  */
-static int isp_pipeline_pm_power(struct media_entity *entity, int change)
+static int isp_pipeline_pm_power(struct media_entity *entity, int change,
+	struct media_entity_graph *graph)
 {
-	struct media_entity_graph graph;
 	struct media_entity *first = entity;
 	int ret = 0;
 
 	if (!change)
 		return 0;
 
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(graph, entity);
 
-	while (!ret && (entity = media_entity_graph_walk_next(&graph)))
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+	while (!ret && (entity = media_entity_graph_walk_next(graph)))
+		if (is_media_entity_v4l2_subdev(entity))
 			ret = isp_pipeline_pm_power_one(entity, change);
 
 	if (!ret)
-		return 0;
+		return ret;
 
-	media_entity_graph_walk_start(&graph, first);
+	media_entity_graph_walk_start(graph, first);
 
-	while ((first = media_entity_graph_walk_next(&graph))
+	while ((first = media_entity_graph_walk_next(graph))
 	       && first != entity)
-		if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE)
+		if (is_media_entity_v4l2_subdev(first))
 			isp_pipeline_pm_power_one(first, -change);
 
 	return ret;
@@ -782,23 +782,24 @@ static int isp_pipeline_pm_power(struct media_entity *entity, int change)
  * off is assumed to never fail. No failure can occur when the use parameter is
  * set to 0.
  */
-int omap3isp_pipeline_pm_use(struct media_entity *entity, int use)
+int omap3isp_pipeline_pm_use(struct media_entity *entity, int use,
+			     struct media_entity_graph *graph)
 {
 	int change = use ? 1 : -1;
 	int ret;
 
-	mutex_lock(&entity->parent->graph_mutex);
+	mutex_lock(&entity->graph_obj.mdev->graph_mutex);
 
 	/* Apply use count to node. */
 	entity->use_count += change;
 	WARN_ON(entity->use_count < 0);
 
 	/* Apply power change to connected non-nodes. */
-	ret = isp_pipeline_pm_power(entity, change);
+	ret = isp_pipeline_pm_power(entity, change, graph);
 	if (ret < 0)
 		entity->use_count -= change;
 
-	mutex_unlock(&entity->parent->graph_mutex);
+	mutex_unlock(&entity->graph_obj.mdev->graph_mutex);
 
 	return ret;
 }
@@ -820,35 +821,49 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity, int use)
 static int isp_pipeline_link_notify(struct media_link *link, u32 flags,
 				    unsigned int notification)
 {
+	struct media_entity_graph *graph =
+		&container_of(link->graph_obj.mdev, struct isp_device,
+			      media_dev)->pm_count_graph;
 	struct media_entity *source = link->source->entity;
 	struct media_entity *sink = link->sink->entity;
-	int source_use = isp_pipeline_pm_use_count(source);
-	int sink_use = isp_pipeline_pm_use_count(sink);
-	int ret;
+	int source_use;
+	int sink_use;
+	int ret = 0;
+
+	if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) {
+		ret = media_entity_graph_walk_init(graph,
+						   link->graph_obj.mdev);
+		if (ret)
+			return ret;
+	}
+
+	source_use = isp_pipeline_pm_use_count(source, graph);
+	sink_use = isp_pipeline_pm_use_count(sink, graph);
 
 	if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
 	    !(flags & MEDIA_LNK_FL_ENABLED)) {
 		/* Powering off entities is assumed to never fail. */
-		isp_pipeline_pm_power(source, -sink_use);
-		isp_pipeline_pm_power(sink, -source_use);
+		isp_pipeline_pm_power(source, -sink_use, graph);
+		isp_pipeline_pm_power(sink, -source_use, graph);
 		return 0;
 	}
 
 	if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH &&
 		(flags & MEDIA_LNK_FL_ENABLED)) {
 
-		ret = isp_pipeline_pm_power(source, sink_use);
+		ret = isp_pipeline_pm_power(source, sink_use, graph);
 		if (ret < 0)
 			return ret;
 
-		ret = isp_pipeline_pm_power(sink, source_use);
+		ret = isp_pipeline_pm_power(sink, source_use, graph);
 		if (ret < 0)
-			isp_pipeline_pm_power(source, -sink_use);
-
-		return ret;
+			isp_pipeline_pm_power(source, -sink_use, graph);
 	}
 
-	return 0;
+	if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH)
+		media_entity_graph_walk_cleanup(graph);
+
+	return ret;
 }
 
 /* -----------------------------------------------------------------------------
@@ -881,7 +896,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
 	 * starting entities if the pipeline won't start anyway (those entities
 	 * would then likely fail to stop, making the problem worse).
 	 */
-	if (pipe->entities & isp->crashed)
+	if (media_entity_enum_intersects(&pipe->ent_enum, &isp->crashed))
 		return -EIO;
 
 	spin_lock_irqsave(&pipe->lock, flags);
@@ -897,8 +912,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
 			break;
 
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = pad->entity;
@@ -987,8 +1001,7 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
 			break;
 
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = pad->entity;
@@ -1028,7 +1041,8 @@ static int isp_pipeline_disable(struct isp_pipeline *pipe)
 			dev_info(isp->dev, "Unable to stop %s\n", subdev->name);
 			isp->stop_failure = true;
 			if (subdev == &isp->isp_prev.subdev)
-				isp->crashed |= 1U << subdev->entity.id;
+				media_entity_enum_set(&isp->crashed,
+						      &subdev->entity);
 			failure = -ETIMEDOUT;
 		}
 	}
@@ -1234,7 +1248,7 @@ static int isp_reset(struct isp_device *isp)
 	}
 
 	isp->stop_failure = false;
-	isp->crashed = 0;
+	media_entity_enum_zero(&isp->crashed);
 	return 0;
 }
 
@@ -1645,7 +1659,8 @@ static void __omap3isp_put(struct isp_device *isp, bool save_ctx)
 		/* Reset the ISP if an entity has failed to stop. This is the
 		 * only way to recover from such conditions.
 		 */
-		if (isp->crashed || isp->stop_failure)
+		if (!media_entity_enum_empty(&isp->crashed) ||
+		    isp->stop_failure)
 			isp_reset(isp);
 		isp_disable_clocks(isp);
 	}
@@ -1792,6 +1807,7 @@ static void isp_unregister_entities(struct isp_device *isp)
 
 	v4l2_device_unregister(&isp->v4l2_dev);
 	media_device_unregister(&isp->media_dev);
+	media_device_cleanup(&isp->media_dev);
 }
 
 static int isp_link_entity(
@@ -1862,7 +1878,7 @@ static int isp_link_entity(
 		return -EINVAL;
 	}
 
-	return media_entity_create_link(entity, i, input, pad, flags);
+	return media_create_pad_link(entity, i, input, pad, flags);
 }
 
 static int isp_register_entities(struct isp_device *isp)
@@ -1874,12 +1890,7 @@ static int isp_register_entities(struct isp_device *isp)
 		sizeof(isp->media_dev.model));
 	isp->media_dev.hw_revision = isp->revision;
 	isp->media_dev.link_notify = isp_pipeline_link_notify;
-	ret = media_device_register(&isp->media_dev);
-	if (ret < 0) {
-		dev_err(isp->dev, "%s: Media device registration failed (%d)\n",
-			__func__, ret);
-		return ret;
-	}
+	media_device_init(&isp->media_dev);
 
 	isp->v4l2_dev.mdev = &isp->media_dev;
 	ret = v4l2_device_register(isp->dev, &isp->v4l2_dev);
@@ -1930,6 +1941,118 @@ done:
 	return ret;
 }
 
+/*
+ * isp_create_links() - Create links for internal and external ISP entities
+ * @isp : Pointer to ISP device
+ *
+ * This function creates all links between ISP internal and external entities.
+ *
+ * Return: A negative error code on failure or zero on success. Possible error
+ * codes are those returned by media_create_pad_link().
+ */
+static int isp_create_links(struct isp_device *isp)
+{
+	int ret;
+
+	/* Create links between entities and video nodes. */
+	ret = media_create_pad_link(
+			&isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE,
+			&isp->isp_csi2a.video_out.video.entity, 0, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccp2.video_in.video.entity, 0,
+			&isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF,
+			&isp->isp_ccdc.video_out.video.entity, 0, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_prev.video_in.video.entity, 0,
+			&isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_prev.subdev.entity, PREV_PAD_SOURCE,
+			&isp->isp_prev.video_out.video.entity, 0, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_res.video_in.video.entity, 0,
+			&isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_res.subdev.entity, RESZ_PAD_SOURCE,
+			&isp->isp_res.video_out.video.entity, 0, 0);
+
+	if (ret < 0)
+		return ret;
+
+	/* Create links between entities. */
+	ret = media_create_pad_link(
+			&isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE,
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccp2.subdev.entity, CCP2_PAD_SOURCE,
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
+			&isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF,
+			&isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_prev.subdev.entity, PREV_PAD_SOURCE,
+			&isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
+			&isp->isp_aewb.subdev.entity, 0,
+			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
+			&isp->isp_af.subdev.entity, 0,
+			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
+			&isp->isp_hist.subdev.entity, 0,
+			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 static void isp_cleanup_modules(struct isp_device *isp)
 {
 	omap3isp_h3a_aewb_cleanup(isp);
@@ -2000,62 +2123,8 @@ static int isp_initialize_modules(struct isp_device *isp)
 		goto error_h3a_af;
 	}
 
-	/* Connect the submodules. */
-	ret = media_entity_create_link(
-			&isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE,
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccp2.subdev.entity, CCP2_PAD_SOURCE,
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
-			&isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF,
-			&isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_prev.subdev.entity, PREV_PAD_SOURCE,
-			&isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
-			&isp->isp_aewb.subdev.entity, 0,
-			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
-			&isp->isp_af.subdev.entity, 0,
-			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP,
-			&isp->isp_hist.subdev.entity, 0,
-			MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap3isp_h3a_af_cleanup(isp);
 error_h3a_af:
 	omap3isp_h3a_aewb_cleanup(isp);
 error_h3a_aewb:
@@ -2149,6 +2218,8 @@ static int isp_remove(struct platform_device *pdev)
 	isp_detach_iommu(isp);
 	__omap3isp_put(isp, false);
 
+	media_entity_enum_cleanup(&isp->crashed);
+
 	return 0;
 }
 
@@ -2278,28 +2349,43 @@ static int isp_subdev_notifier_bound(struct v4l2_async_notifier *async,
 				     struct v4l2_subdev *subdev,
 				     struct v4l2_async_subdev *asd)
 {
-	struct isp_device *isp = container_of(async, struct isp_device,
-					      notifier);
 	struct isp_async_subdev *isd =
 		container_of(asd, struct isp_async_subdev, asd);
-	int ret;
-
-	ret = isp_link_entity(isp, &subdev->entity, isd->bus.interface);
-	if (ret < 0)
-		return ret;
 
 	isd->sd = subdev;
 	isd->sd->host_priv = &isd->bus;
 
-	return ret;
+	return 0;
 }
 
 static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
 {
 	struct isp_device *isp = container_of(async, struct isp_device,
 					      notifier);
+	struct v4l2_device *v4l2_dev = &isp->v4l2_dev;
+	struct v4l2_subdev *sd;
+	struct isp_bus_cfg *bus;
+	int ret;
+
+	ret = media_entity_enum_init(&isp->crashed, &isp->media_dev);
+	if (ret)
+		return ret;
 
-	return v4l2_device_register_subdev_nodes(&isp->v4l2_dev);
+	list_for_each_entry(sd, &v4l2_dev->subdevs, list) {
+		/* Only try to link entities whose interface was set on bound */
+		if (sd->host_priv) {
+			bus = (struct isp_bus_cfg *)sd->host_priv;
+			ret = isp_link_entity(isp, &sd->entity, bus->interface);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	ret = v4l2_device_register_subdev_nodes(&isp->v4l2_dev);
+	if (ret < 0)
+		return ret;
+
+	return media_device_register(&isp->media_dev);
 }
 
 /*
@@ -2465,6 +2551,10 @@ static int isp_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto error_modules;
 
+	ret = isp_create_links(isp);
+	if (ret < 0)
+		goto error_register_entities;
+
 	isp->notifier.bound = isp_subdev_notifier_bound;
 	isp->notifier.complete = isp_subdev_notifier_complete;
 
diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h
index 5acc2e6511a5..49b7f71ac968 100644
--- a/drivers/media/platform/omap3isp/isp.h
+++ b/drivers/media/platform/omap3isp/isp.h
@@ -17,6 +17,7 @@
 #ifndef OMAP3_ISP_CORE_H
 #define OMAP3_ISP_CORE_H
 
+#include <media/media-entity.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-device.h>
 #include <linux/clk-provider.h>
@@ -152,7 +153,7 @@ struct isp_xclk {
  * @stat_lock: Spinlock for handling statistics
  * @isp_mutex: Mutex for serializing requests to ISP.
  * @stop_failure: Indicates that an entity failed to stop.
- * @crashed: Bitmask of crashed entities (indexed by entity ID)
+ * @crashed: Crashed ent_enum
  * @has_context: Context has been saved at least once and can be restored.
  * @ref_count: Reference count for handling multiple ISP requests.
  * @cam_ick: Pointer to camera interface clock structure.
@@ -176,6 +177,7 @@ struct isp_device {
 	struct v4l2_device v4l2_dev;
 	struct v4l2_async_notifier notifier;
 	struct media_device media_dev;
+	struct media_entity_graph pm_count_graph;
 	struct device *dev;
 	u32 revision;
 
@@ -194,7 +196,7 @@ struct isp_device {
 	spinlock_t stat_lock;	/* common lock for statistic drivers */
 	struct mutex isp_mutex;	/* For handling ref_count field */
 	bool stop_failure;
-	u32 crashed;
+	struct media_entity_enum crashed;
 	int has_context;
 	int ref_count;
 	unsigned int autoidle;
@@ -265,7 +267,8 @@ void omap3isp_subclk_enable(struct isp_device *isp,
 void omap3isp_subclk_disable(struct isp_device *isp,
 			     enum isp_subclk_resource res);
 
-int omap3isp_pipeline_pm_use(struct media_entity *entity, int use);
+int omap3isp_pipeline_pm_use(struct media_entity *entity, int use,
+			     struct media_entity_graph *graph);
 
 int omap3isp_register_entities(struct platform_device *pdev,
 			       struct v4l2_device *v4l2_dev);
diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c
index a6a61cce43dd..bb3974c98e37 100644
--- a/drivers/media/platform/omap3isp/ispccdc.c
+++ b/drivers/media/platform/omap3isp/ispccdc.c
@@ -1608,7 +1608,7 @@ static int ccdc_isr_buffer(struct isp_ccdc_device *ccdc)
 	/* Wait for the CCDC to become idle. */
 	if (ccdc_sbl_wait_idle(ccdc, 1000)) {
 		dev_info(isp->dev, "CCDC won't become idle!\n");
-		isp->crashed |= 1U << ccdc->subdev.entity.id;
+		media_entity_enum_set(&isp->crashed, &ccdc->subdev.entity);
 		omap3isp_pipeline_cancel_stream(pipe);
 		return 0;
 	}
@@ -2513,9 +2513,14 @@ static int ccdc_link_setup(struct media_entity *entity,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
 	struct isp_device *isp = to_isp_device(ccdc);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case CCDC_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case CCDC_PAD_SINK | 2 << 16:
 		/* Read from the sensor (parallel interface), CCP2, CSI2a or
 		 * CSI2c.
 		 */
@@ -2543,7 +2548,7 @@ static int ccdc_link_setup(struct media_entity *entity,
 	 * Revisit this when it will be implemented, and return -EBUSY for now.
 	 */
 
-	case CCDC_PAD_SOURCE_VP | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CCDC_PAD_SOURCE_VP | 2 << 16:
 		/* Write to preview engine, histogram and H3A. When none of
 		 * those links are active, the video port can be disabled.
 		 */
@@ -2556,7 +2561,7 @@ static int ccdc_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case CCDC_PAD_SOURCE_OF | MEDIA_ENT_T_DEVNODE:
+	case CCDC_PAD_SOURCE_OF:
 		/* Write to memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ccdc->output & ~CCDC_OUTPUT_MEMORY)
@@ -2567,7 +2572,7 @@ static int ccdc_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case CCDC_PAD_SOURCE_OF | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CCDC_PAD_SOURCE_OF | 2 << 16:
 		/* Write to resizer */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ccdc->output & ~CCDC_OUTPUT_RESIZER)
@@ -2650,7 +2655,7 @@ static int ccdc_init_entities(struct isp_ccdc_device *ccdc)
 	pads[CCDC_PAD_SOURCE_OF].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ccdc_media_ops;
-	ret = media_entity_init(me, CCDC_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, CCDC_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -2664,19 +2669,11 @@ static int ccdc_init_entities(struct isp_ccdc_device *ccdc)
 
 	ret = omap3isp_video_init(&ccdc->video_out, "CCDC");
 	if (ret < 0)
-		goto error_video;
-
-	/* Connect the CCDC subdev to the video node. */
-	ret = media_entity_create_link(&ccdc->subdev.entity, CCDC_PAD_SOURCE_OF,
-			&ccdc->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		goto error_link;
+		goto error;
 
 	return 0;
 
-error_link:
-	omap3isp_video_cleanup(&ccdc->video_out);
-error_video:
+error:
 	media_entity_cleanup(me);
 	return ret;
 }
diff --git a/drivers/media/platform/omap3isp/ispccp2.c b/drivers/media/platform/omap3isp/ispccp2.c
index 38e6a974c5b1..ca095238510d 100644
--- a/drivers/media/platform/omap3isp/ispccp2.c
+++ b/drivers/media/platform/omap3isp/ispccp2.c
@@ -956,9 +956,14 @@ static int ccp2_link_setup(struct media_entity *entity,
 {
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct isp_ccp2_device *ccp2 = v4l2_get_subdevdata(sd);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case CCP2_PAD_SINK | MEDIA_ENT_T_DEVNODE:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case CCP2_PAD_SINK:
 		/* read from memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ccp2->input == CCP2_INPUT_SENSOR)
@@ -970,7 +975,7 @@ static int ccp2_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case CCP2_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CCP2_PAD_SINK | 2 << 16:
 		/* read from sensor/phy */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ccp2->input == CCP2_INPUT_MEMORY)
@@ -981,7 +986,7 @@ static int ccp2_link_setup(struct media_entity *entity,
 				ccp2->input = CCP2_INPUT_NONE;
 		} break;
 
-	case CCP2_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CCP2_PAD_SOURCE | 2 << 16:
 		/* write to video port/ccdc */
 		if (flags & MEDIA_LNK_FL_ENABLED)
 			ccp2->output = CCP2_OUTPUT_CCDC;
@@ -1071,7 +1076,7 @@ static int ccp2_init_entities(struct isp_ccp2_device *ccp2)
 	pads[CCP2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ccp2_media_ops;
-	ret = media_entity_init(me, CCP2_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, CCP2_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -1097,19 +1102,11 @@ static int ccp2_init_entities(struct isp_ccp2_device *ccp2)
 
 	ret = omap3isp_video_init(&ccp2->video_in, "CCP2");
 	if (ret < 0)
-		goto error_video;
-
-	/* Connect the video node to the ccp2 subdev. */
-	ret = media_entity_create_link(&ccp2->video_in.video.entity, 0,
-				       &ccp2->subdev.entity, CCP2_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
+		goto error;
 
 	return 0;
 
-error_link:
-	omap3isp_video_cleanup(&ccp2->video_in);
-error_video:
+error:
 	media_entity_cleanup(&ccp2->subdev.entity);
 	return ret;
 }
diff --git a/drivers/media/platform/omap3isp/ispcsi2.c b/drivers/media/platform/omap3isp/ispcsi2.c
index a78338d012b4..f75a1be29d84 100644
--- a/drivers/media/platform/omap3isp/ispcsi2.c
+++ b/drivers/media/platform/omap3isp/ispcsi2.c
@@ -1144,14 +1144,19 @@ static int csi2_link_setup(struct media_entity *entity,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
 	struct isp_csi2_ctrl_cfg *ctrl = &csi2->ctrl;
+	unsigned int index = local->index;
 
 	/*
 	 * The ISP core doesn't support pipelines with multiple video outputs.
 	 * Revisit this when it will be implemented, and return -EBUSY for now.
 	 */
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case CSI2_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case CSI2_PAD_SOURCE:
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (csi2->output & ~CSI2_OUTPUT_MEMORY)
 				return -EBUSY;
@@ -1161,7 +1166,7 @@ static int csi2_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case CSI2_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CSI2_PAD_SOURCE | 2 << 16:
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (csi2->output & ~CSI2_OUTPUT_CCDC)
 				return -EBUSY;
@@ -1245,7 +1250,7 @@ static int csi2_init_entities(struct isp_csi2_device *csi2)
 				    | MEDIA_PAD_FL_MUST_CONNECT;
 
 	me->ops = &csi2_media_ops;
-	ret = media_entity_init(me, CSI2_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, CSI2_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -1264,16 +1269,8 @@ static int csi2_init_entities(struct isp_csi2_device *csi2)
 	if (ret < 0)
 		goto error_video;
 
-	/* Connect the CSI2 subdev to the video node. */
-	ret = media_entity_create_link(&csi2->subdev.entity, CSI2_PAD_SOURCE,
-				       &csi2->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap3isp_video_cleanup(&csi2->video_out);
 error_video:
 	media_entity_cleanup(&csi2->subdev.entity);
 	return ret;
diff --git a/drivers/media/platform/omap3isp/isppreview.c b/drivers/media/platform/omap3isp/isppreview.c
index 13803270d104..84a96670e2e7 100644
--- a/drivers/media/platform/omap3isp/isppreview.c
+++ b/drivers/media/platform/omap3isp/isppreview.c
@@ -2144,9 +2144,14 @@ static int preview_link_setup(struct media_entity *entity,
 {
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct isp_prev_device *prev = v4l2_get_subdevdata(sd);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case PREV_PAD_SINK | MEDIA_ENT_T_DEVNODE:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case PREV_PAD_SINK:
 		/* read from memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (prev->input == PREVIEW_INPUT_CCDC)
@@ -2158,7 +2163,7 @@ static int preview_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case PREV_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	case PREV_PAD_SINK | 2 << 16:
 		/* read from ccdc */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (prev->input == PREVIEW_INPUT_MEMORY)
@@ -2175,7 +2180,7 @@ static int preview_link_setup(struct media_entity *entity,
 	 * Revisit this when it will be implemented, and return -EBUSY for now.
 	 */
 
-	case PREV_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+	case PREV_PAD_SOURCE:
 		/* write to memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (prev->output & ~PREVIEW_OUTPUT_MEMORY)
@@ -2186,7 +2191,7 @@ static int preview_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case PREV_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case PREV_PAD_SOURCE | 2 << 16:
 		/* write to resizer */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (prev->output & ~PREVIEW_OUTPUT_RESIZER)
@@ -2282,7 +2287,7 @@ static int preview_init_entities(struct isp_prev_device *prev)
 	pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &preview_media_ops;
-	ret = media_entity_init(me, PREV_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, PREV_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -2311,21 +2316,8 @@ static int preview_init_entities(struct isp_prev_device *prev)
 	if (ret < 0)
 		goto error_video_out;
 
-	/* Connect the video nodes to the previewer subdev. */
-	ret = media_entity_create_link(&prev->video_in.video.entity, 0,
-			&prev->subdev.entity, PREV_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(&prev->subdev.entity, PREV_PAD_SOURCE,
-			&prev->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap3isp_video_cleanup(&prev->video_out);
 error_video_out:
 	omap3isp_video_cleanup(&prev->video_in);
 error_video_in:
diff --git a/drivers/media/platform/omap3isp/ispresizer.c b/drivers/media/platform/omap3isp/ispresizer.c
index 7cfb43dc0ffd..0b6a87508584 100644
--- a/drivers/media/platform/omap3isp/ispresizer.c
+++ b/drivers/media/platform/omap3isp/ispresizer.c
@@ -1623,9 +1623,14 @@ static int resizer_link_setup(struct media_entity *entity,
 {
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct isp_res_device *res = v4l2_get_subdevdata(sd);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case RESZ_PAD_SINK | MEDIA_ENT_T_DEVNODE:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case RESZ_PAD_SINK:
 		/* read from memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (res->input == RESIZER_INPUT_VP)
@@ -1637,7 +1642,7 @@ static int resizer_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case RESZ_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	case RESZ_PAD_SINK | 2 << 16:
 		/* read from ccdc or previewer */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (res->input == RESIZER_INPUT_MEMORY)
@@ -1649,7 +1654,7 @@ static int resizer_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case RESZ_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+	case RESZ_PAD_SOURCE:
 		/* resizer always write to memory */
 		break;
 
@@ -1728,7 +1733,7 @@ static int resizer_init_entities(struct isp_res_device *res)
 	pads[RESZ_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESZ_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, RESZ_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -1755,21 +1760,8 @@ static int resizer_init_entities(struct isp_res_device *res)
 
 	res->video_out.video.entity.flags |= MEDIA_ENT_FL_DEFAULT;
 
-	/* Connect the video nodes to the resizer subdev. */
-	ret = media_entity_create_link(&res->video_in.video.entity, 0,
-			&res->subdev.entity, RESZ_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(&res->subdev.entity, RESZ_PAD_SOURCE,
-			&res->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap3isp_video_cleanup(&res->video_out);
 error_video_out:
 	omap3isp_video_cleanup(&res->video_in);
 error_video_in:
diff --git a/drivers/media/platform/omap3isp/ispstat.c b/drivers/media/platform/omap3isp/ispstat.c
index 94d4c295d3d0..1b9217d3b1b6 100644
--- a/drivers/media/platform/omap3isp/ispstat.c
+++ b/drivers/media/platform/omap3isp/ispstat.c
@@ -1028,7 +1028,7 @@ static int isp_stat_init_entities(struct ispstat *stat, const char *name,
 	stat->pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;
 	me->ops = NULL;
 
-	return media_entity_init(me, 1, &stat->pad, 0);
+	return media_entity_pads_init(me, 1, &stat->pad);
 }
 
 int omap3isp_stat_init(struct ispstat *stat, const char *name,
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index ecadca3e945b..994dfc0813f6 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -210,8 +210,7 @@ isp_video_remote_subdev(struct isp_video *video, u32 *pad)
 
 	remote = media_entity_remote_pad(&video->pad);
 
-	if (remote == NULL ||
-	    media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
 		return NULL;
 
 	if (pad)
@@ -226,16 +225,23 @@ static int isp_video_get_graph_data(struct isp_video *video,
 {
 	struct media_entity_graph graph;
 	struct media_entity *entity = &video->video.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 	struct isp_video *far_end = NULL;
+	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
+	ret = media_entity_graph_walk_init(&graph, entity->graph_obj.mdev);
+	if (ret) {
+		mutex_unlock(&mdev->graph_mutex);
+		return ret;
+	}
+
 	media_entity_graph_walk_start(&graph, entity);
 
 	while ((entity = media_entity_graph_walk_next(&graph))) {
 		struct isp_video *__video;
 
-		pipe->entities |= 1 << entity->id;
+		media_entity_enum_set(&pipe->ent_enum, entity);
 
 		if (far_end != NULL)
 			continue;
@@ -243,7 +249,7 @@ static int isp_video_get_graph_data(struct isp_video *video,
 		if (entity == &video->video.entity)
 			continue;
 
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+		if (!is_media_entity_v4l2_io(entity))
 			continue;
 
 		__video = to_isp_video(media_entity_to_video_device(entity));
@@ -253,6 +259,8 @@ static int isp_video_get_graph_data(struct isp_video *video,
 
 	mutex_unlock(&mdev->graph_mutex);
 
+	media_entity_graph_walk_cleanup(&graph);
+
 	if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		pipe->input = far_end;
 		pipe->output = video;
@@ -900,7 +908,7 @@ static int isp_video_check_external_subdevs(struct isp_video *video,
 
 	for (i = 0; i < ARRAY_SIZE(ents); i++) {
 		/* Is the entity part of the pipeline? */
-		if (!(pipe->entities & (1 << ents[i]->id)))
+		if (!media_entity_enum_test(&pipe->ent_enum, ents[i]))
 			continue;
 
 		/* ISP entities have always sink pad == 0. Find source. */
@@ -918,7 +926,7 @@ static int isp_video_check_external_subdevs(struct isp_video *video,
 		return -EINVAL;
 	}
 
-	if (media_entity_type(source) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!is_media_entity_v4l2_subdev(source))
 		return 0;
 
 	pipe->external = media_entity_to_v4l2_subdev(source);
@@ -952,7 +960,8 @@ static int isp_video_check_external_subdevs(struct isp_video *video,
 
 	pipe->external_rate = ctrl.value64;
 
-	if (pipe->entities & (1 << isp->isp_ccdc.subdev.entity.id)) {
+	if (media_entity_enum_test(&pipe->ent_enum,
+				   &isp->isp_ccdc.subdev.entity)) {
 		unsigned int rate = UINT_MAX;
 		/*
 		 * Check that maximum allowed CCDC pixel rate isn't
@@ -1018,7 +1027,9 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 	pipe = video->video.entity.pipe
 	     ? to_isp_pipeline(&video->video.entity) : &video->pipe;
 
-	pipe->entities = 0;
+	ret = media_entity_enum_init(&pipe->ent_enum, &video->isp->media_dev);
+	if (ret)
+		goto err_enum_init;
 
 	/* TODO: Implement PM QoS */
 	pipe->l3_ick = clk_get_rate(video->isp->clock[ISP_CLK_L3_ICK]);
@@ -1092,6 +1103,7 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 	}
 
 	mutex_unlock(&video->stream_lock);
+
 	return 0;
 
 err_set_stream:
@@ -1112,7 +1124,11 @@ err_pipeline_start:
 	INIT_LIST_HEAD(&video->dmaqueue);
 	video->queue = NULL;
 
+	media_entity_enum_cleanup(&pipe->ent_enum);
+
+err_enum_init:
 	mutex_unlock(&video->stream_lock);
+
 	return ret;
 }
 
@@ -1164,6 +1180,8 @@ isp_video_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
 	/* TODO: Implement PM QoS */
 	media_entity_pipeline_stop(&video->video.entity);
 
+	media_entity_enum_cleanup(&pipe->ent_enum);
+
 done:
 	mutex_unlock(&video->stream_lock);
 	return 0;
@@ -1243,7 +1261,12 @@ static int isp_video_open(struct file *file)
 		goto done;
 	}
 
-	ret = omap3isp_pipeline_pm_use(&video->video.entity, 1);
+	ret = media_entity_graph_walk_init(&handle->graph,
+					   &video->isp->media_dev);
+	if (ret)
+		goto done;
+
+	ret = omap3isp_pipeline_pm_use(&video->video.entity, 1, &handle->graph);
 	if (ret < 0) {
 		omap3isp_put(video->isp);
 		goto done;
@@ -1274,6 +1297,7 @@ static int isp_video_open(struct file *file)
 done:
 	if (ret < 0) {
 		v4l2_fh_del(&handle->vfh);
+		media_entity_graph_walk_cleanup(&handle->graph);
 		kfree(handle);
 	}
 
@@ -1293,7 +1317,8 @@ static int isp_video_release(struct file *file)
 	vb2_queue_release(&handle->queue);
 	mutex_unlock(&video->queue_lock);
 
-	omap3isp_pipeline_pm_use(&video->video.entity, 0);
+	omap3isp_pipeline_pm_use(&video->video.entity, 0, &handle->graph);
+	media_entity_graph_walk_cleanup(&handle->graph);
 
 	/* Release the file handle. */
 	v4l2_fh_del(vfh);
@@ -1367,7 +1392,7 @@ int omap3isp_video_init(struct isp_video *video, const char *name)
 	if (IS_ERR(video->alloc_ctx))
 		return PTR_ERR(video->alloc_ctx);
 
-	ret = media_entity_init(&video->video.entity, 1, &video->pad, 0);
+	ret = media_entity_pads_init(&video->video.entity, 1, &video->pad);
 	if (ret < 0) {
 		vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
 		return ret;
diff --git a/drivers/media/platform/omap3isp/ispvideo.h b/drivers/media/platform/omap3isp/ispvideo.h
index bcf0e0acc8f3..156429878d64 100644
--- a/drivers/media/platform/omap3isp/ispvideo.h
+++ b/drivers/media/platform/omap3isp/ispvideo.h
@@ -80,7 +80,7 @@ enum isp_pipeline_state {
  * struct isp_pipeline - An ISP hardware pipeline
  * @field: The field being processed by the pipeline
  * @error: A hardware error occurred during capture
- * @entities: Bitmask of entities in the pipeline (indexed by entity ID)
+ * @ent_enum: Entities in the pipeline
  */
 struct isp_pipeline {
 	struct media_pipeline pipe;
@@ -89,7 +89,7 @@ struct isp_pipeline {
 	enum isp_pipeline_stream_state stream_state;
 	struct isp_video *input;
 	struct isp_video *output;
-	u32 entities;
+	struct media_entity_enum ent_enum;
 	unsigned long l3_ick;
 	unsigned int max_rate;
 	enum v4l2_field field;
@@ -189,6 +189,7 @@ struct isp_video_fh {
 	struct vb2_queue queue;
 	struct v4l2_format format;
 	struct v4l2_fract timeperframe;
+	struct media_entity_graph graph;
 };
 
 #define to_isp_video_fh(fh)	container_of(fh, struct isp_video_fh, vfh)
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index ec3abbed87d9..bd060ef5d1e1 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -822,7 +822,7 @@ static int camif_pipeline_validate(struct camif_dev *camif)
 
 	/* Retrieve format at the sensor subdev source pad */
 	pad = media_entity_remote_pad(&camif->pads[0]);
-	if (!pad || media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 		return -EPIPE;
 
 	src_fmt.pad = pad->index;
@@ -1144,7 +1144,7 @@ int s3c_camif_register_video_node(struct camif_dev *camif, int idx)
 		goto err_vd_rel;
 
 	vp->pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&vfd->entity, 1, &vp->pad, 0);
+	ret = media_entity_pads_init(&vfd->entity, 1, &vp->pad);
 	if (ret)
 		goto err_vd_rel;
 
@@ -1559,8 +1559,8 @@ int s3c_camif_create_subdev(struct camif_dev *camif)
 	camif->pads[CAMIF_SD_PAD_SOURCE_C].flags = MEDIA_PAD_FL_SOURCE;
 	camif->pads[CAMIF_SD_PAD_SOURCE_P].flags = MEDIA_PAD_FL_SOURCE;
 
-	ret = media_entity_init(&sd->entity, CAMIF_SD_PADS_NUM,
-				camif->pads, 0);
+	ret = media_entity_pads_init(&sd->entity, CAMIF_SD_PADS_NUM,
+				camif->pads);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c
index 1ba9bb08f5da..0b44b9accf50 100644
--- a/drivers/media/platform/s3c-camif/camif-core.c
+++ b/drivers/media/platform/s3c-camif/camif-core.c
@@ -263,7 +263,7 @@ static int camif_create_media_links(struct camif_dev *camif)
 {
 	int i, ret;
 
-	ret = media_entity_create_link(&camif->sensor.sd->entity, 0,
+	ret = media_create_pad_link(&camif->sensor.sd->entity, 0,
 				&camif->subdev.entity, CAMIF_SD_PAD_SINK,
 				MEDIA_LNK_FL_IMMUTABLE |
 				MEDIA_LNK_FL_ENABLED);
@@ -271,7 +271,7 @@ static int camif_create_media_links(struct camif_dev *camif)
 		return ret;
 
 	for (i = 1; i < CAMIF_SD_PADS_NUM && !ret; i++) {
-		ret = media_entity_create_link(&camif->subdev.entity, i,
+		ret = media_create_pad_link(&camif->subdev.entity, i,
 				&camif->vp[i - 1].vdev.entity, 0,
 				MEDIA_LNK_FL_IMMUTABLE |
 				MEDIA_LNK_FL_ENABLED);
@@ -305,7 +305,7 @@ static void camif_unregister_media_entities(struct camif_dev *camif)
 /*
  * Media device
  */
-static int camif_media_dev_register(struct camif_dev *camif)
+static int camif_media_dev_init(struct camif_dev *camif)
 {
 	struct media_device *md = &camif->media_dev;
 	struct v4l2_device *v4l2_dev = &camif->v4l2_dev;
@@ -324,14 +324,12 @@ static int camif_media_dev_register(struct camif_dev *camif)
 	strlcpy(v4l2_dev->name, "s3c-camif", sizeof(v4l2_dev->name));
 	v4l2_dev->mdev = md;
 
+	media_device_init(md);
+
 	ret = v4l2_device_register(camif->dev, v4l2_dev);
 	if (ret < 0)
 		return ret;
 
-	ret = media_device_register(md);
-	if (ret < 0)
-		v4l2_device_unregister(v4l2_dev);
-
 	return ret;
 }
 
@@ -483,7 +481,7 @@ static int s3c_camif_probe(struct platform_device *pdev)
 		goto err_alloc;
 	}
 
-	ret = camif_media_dev_register(camif);
+	ret = camif_media_dev_init(camif);
 	if (ret < 0)
 		goto err_mdev;
 
@@ -510,6 +508,11 @@ static int s3c_camif_probe(struct platform_device *pdev)
 		goto err_unlock;
 
 	mutex_unlock(&camif->media_dev.graph_mutex);
+
+	ret = media_device_register(&camif->media_dev);
+	if (ret < 0)
+		goto err_sens;
+
 	pm_runtime_put(dev);
 	return 0;
 
@@ -518,6 +521,7 @@ err_unlock:
 err_sens:
 	v4l2_device_unregister(&camif->v4l2_dev);
 	media_device_unregister(&camif->media_dev);
+	media_device_cleanup(&camif->media_dev);
 	camif_unregister_media_entities(camif);
 err_mdev:
 	vb2_dma_contig_cleanup_ctx(camif->alloc_ctx);
@@ -539,6 +543,7 @@ static int s3c_camif_remove(struct platform_device *pdev)
 	struct s3c_camif_plat_data *pdata = &camif->pdata;
 
 	media_device_unregister(&camif->media_dev);
+	media_device_cleanup(&camif->media_dev);
 	camif_unregister_media_entities(camif);
 	v4l2_device_unregister(&camif->v4l2_dev);
 
diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c
index 4e61886384e3..42dff9d020af 100644
--- a/drivers/media/platform/vsp1/vsp1_drv.c
+++ b/drivers/media/platform/vsp1/vsp1_drv.c
@@ -101,7 +101,7 @@ static int vsp1_create_links(struct vsp1_device *vsp1, struct vsp1_entity *sink)
 			if (!(entity->pads[pad].flags & MEDIA_PAD_FL_SINK))
 				continue;
 
-			ret = media_entity_create_link(&source->subdev.entity,
+			ret = media_create_pad_link(&source->subdev.entity,
 						       source->source_pad,
 						       entity, pad, flags);
 			if (ret < 0)
@@ -127,6 +127,7 @@ static void vsp1_destroy_entities(struct vsp1_device *vsp1)
 
 	v4l2_device_unregister(&vsp1->v4l2_dev);
 	media_device_unregister(&vsp1->media_dev);
+	media_device_cleanup(&vsp1->media_dev);
 }
 
 static int vsp1_create_entities(struct vsp1_device *vsp1)
@@ -141,12 +142,7 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
 	strlcpy(mdev->model, "VSP1", sizeof(mdev->model));
 	snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s",
 		 dev_name(mdev->dev));
-	ret = media_device_register(mdev);
-	if (ret < 0) {
-		dev_err(vsp1->dev, "media device registration failed (%d)\n",
-			ret);
-		return ret;
-	}
+	media_device_init(mdev);
 
 	vdev->mdev = mdev;
 	ret = v4l2_device_register(vsp1->dev, vdev);
@@ -250,34 +246,44 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
 		list_add_tail(&wpf->entity.list_dev, &vsp1->entities);
 	}
 
-	/* Create links. */
+	/* Register all subdevs. */
 	list_for_each_entry(entity, &vsp1->entities, list_dev) {
-		if (entity->type == VSP1_ENTITY_LIF ||
-		    entity->type == VSP1_ENTITY_RPF)
-			continue;
-
-		ret = vsp1_create_links(vsp1, entity);
+		ret = v4l2_device_register_subdev(&vsp1->v4l2_dev,
+						  &entity->subdev);
 		if (ret < 0)
 			goto done;
 	}
 
+	/* Create links. */
+	list_for_each_entry(entity, &vsp1->entities, list_dev) {
+		if (entity->type == VSP1_ENTITY_LIF) {
+			ret = vsp1_wpf_create_links(vsp1, entity);
+			if (ret < 0)
+				goto done;
+		} else if (entity->type == VSP1_ENTITY_RPF) {
+			ret = vsp1_rpf_create_links(vsp1, entity);
+			if (ret < 0)
+				goto done;
+		} else {
+			ret = vsp1_create_links(vsp1, entity);
+			if (ret < 0)
+				goto done;
+		}
+	}
+
 	if (vsp1->pdata.features & VSP1_HAS_LIF) {
-		ret = media_entity_create_link(
+		ret = media_create_pad_link(
 			&vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE,
 			&vsp1->lif->entity.subdev.entity, LIF_PAD_SINK, 0);
 		if (ret < 0)
 			return ret;
 	}
 
-	/* Register all subdevs. */
-	list_for_each_entry(entity, &vsp1->entities, list_dev) {
-		ret = v4l2_device_register_subdev(&vsp1->v4l2_dev,
-						  &entity->subdev);
-		if (ret < 0)
-			goto done;
-	}
-
 	ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
+	if (ret < 0)
+		goto done;
+
+	ret = media_device_register(mdev);
 
 done:
 	if (ret < 0)
diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
index fd95a75b04f4..d7308530952f 100644
--- a/drivers/media/platform/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/vsp1/vsp1_entity.c
@@ -219,8 +219,8 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
 	entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
 
 	/* Initialize the media entity. */
-	return media_entity_init(&entity->subdev.entity, num_pads,
-				 entity->pads, 0);
+	return media_entity_pads_init(&entity->subdev.entity, num_pads,
+				 entity->pads);
 }
 
 void vsp1_entity_destroy(struct vsp1_entity *entity)
diff --git a/drivers/media/platform/vsp1/vsp1_rpf.c b/drivers/media/platform/vsp1/vsp1_rpf.c
index cd5248a9a271..924538223d3e 100644
--- a/drivers/media/platform/vsp1/vsp1_rpf.c
+++ b/drivers/media/platform/vsp1/vsp1_rpf.c
@@ -277,18 +277,29 @@ struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index)
 
 	rpf->entity.video = video;
 
-	/* Connect the video device to the RPF. */
-	ret = media_entity_create_link(&rpf->video.video.entity, 0,
-				       &rpf->entity.subdev.entity,
-				       RWPF_PAD_SINK,
-				       MEDIA_LNK_FL_ENABLED |
-				       MEDIA_LNK_FL_IMMUTABLE);
-	if (ret < 0)
-		goto error;
-
 	return rpf;
 
 error:
 	vsp1_entity_destroy(&rpf->entity);
 	return ERR_PTR(ret);
 }
+
+/*
+ * vsp1_rpf_create_links() - RPF pads links creation
+ * @vsp1: Pointer to VSP1 device
+ * @entity: Pointer to VSP1 entity
+ *
+ * return negative error code or zero on success
+ */
+int vsp1_rpf_create_links(struct vsp1_device *vsp1,
+			       struct vsp1_entity *entity)
+{
+	struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
+
+	/* Connect the video device to the RPF. */
+	return media_create_pad_link(&rpf->video.video.entity, 0,
+				     &rpf->entity.subdev.entity,
+				     RWPF_PAD_SINK,
+				     MEDIA_LNK_FL_ENABLED |
+				     MEDIA_LNK_FL_IMMUTABLE);
+}
diff --git a/drivers/media/platform/vsp1/vsp1_rwpf.h b/drivers/media/platform/vsp1/vsp1_rwpf.h
index f452dce1a931..731d36e5258d 100644
--- a/drivers/media/platform/vsp1/vsp1_rwpf.h
+++ b/drivers/media/platform/vsp1/vsp1_rwpf.h
@@ -50,6 +50,11 @@ static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
 struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
 struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
 
+int vsp1_rpf_create_links(struct vsp1_device *vsp1,
+			       struct vsp1_entity *entity);
+int vsp1_wpf_create_links(struct vsp1_device *vsp1,
+			       struct vsp1_entity *entity);
+
 int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
 			     struct v4l2_subdev_pad_config *cfg,
 			     struct v4l2_subdev_mbus_code_enum *code);
diff --git a/drivers/media/platform/vsp1/vsp1_video.c b/drivers/media/platform/vsp1/vsp1_video.c
index 45eb65fa23db..637d0d6f79fb 100644
--- a/drivers/media/platform/vsp1/vsp1_video.c
+++ b/drivers/media/platform/vsp1/vsp1_video.c
@@ -160,8 +160,7 @@ vsp1_video_remote_subdev(struct media_pad *local, u32 *pad)
 	struct media_pad *remote;
 
 	remote = media_entity_remote_pad(local);
-	if (remote == NULL ||
-	    media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
 		return NULL;
 
 	if (pad)
@@ -283,24 +282,35 @@ static int vsp1_pipeline_validate_branch(struct vsp1_pipeline *pipe,
 					 struct vsp1_rwpf *output)
 {
 	struct vsp1_entity *entity;
-	unsigned int entities = 0;
+	struct media_entity_enum ent_enum;
 	struct media_pad *pad;
+	int rval;
 	bool bru_found = false;
 
 	input->location.left = 0;
 	input->location.top = 0;
 
+	rval = media_entity_enum_init(
+		&ent_enum, input->entity.pads[RWPF_PAD_SOURCE].graph_obj.mdev);
+	if (rval)
+		return rval;
+
 	pad = media_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]);
 
 	while (1) {
-		if (pad == NULL)
-			return -EPIPE;
+		if (pad == NULL) {
+			rval = -EPIPE;
+			goto out;
+		}
 
 		/* We've reached a video node, that shouldn't have happened. */
-		if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
-			return -EPIPE;
+		if (!is_media_entity_v4l2_subdev(pad->entity)) {
+			rval = -EPIPE;
+			goto out;
+		}
 
-		entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
+		entity = to_vsp1_entity(
+			media_entity_to_v4l2_subdev(pad->entity));
 
 		/* A BRU is present in the pipeline, store the compose rectangle
 		 * location in the input RPF for use when configuring the RPF.
@@ -323,15 +333,18 @@ static int vsp1_pipeline_validate_branch(struct vsp1_pipeline *pipe,
 			break;
 
 		/* Ensure the branch has no loop. */
-		if (entities & (1 << entity->subdev.entity.id))
-			return -EPIPE;
-
-		entities |= 1 << entity->subdev.entity.id;
+		if (media_entity_enum_test_and_set(&ent_enum,
+						   &entity->subdev.entity)) {
+			rval = -EPIPE;
+			goto out;
+		}
 
 		/* UDS can't be chained. */
 		if (entity->type == VSP1_ENTITY_UDS) {
-			if (pipe->uds)
-				return -EPIPE;
+			if (pipe->uds) {
+				rval = -EPIPE;
+				goto out;
+			}
 
 			pipe->uds = entity;
 			pipe->uds_input = bru_found ? pipe->bru
@@ -349,9 +362,12 @@ static int vsp1_pipeline_validate_branch(struct vsp1_pipeline *pipe,
 
 	/* The last entity must be the output WPF. */
 	if (entity != &output->entity)
-		return -EPIPE;
+		rval = -EPIPE;
 
-	return 0;
+out:
+	media_entity_enum_cleanup(&ent_enum);
+
+	return rval;
 }
 
 static void __vsp1_pipeline_cleanup(struct vsp1_pipeline *pipe)
@@ -380,13 +396,19 @@ static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
 {
 	struct media_entity_graph graph;
 	struct media_entity *entity = &video->video.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 	unsigned int i;
 	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
 
 	/* Walk the graph to locate the entities and video nodes. */
+	ret = media_entity_graph_walk_init(&graph, mdev);
+	if (ret) {
+		mutex_unlock(&mdev->graph_mutex);
+		return ret;
+	}
+
 	media_entity_graph_walk_start(&graph, entity);
 
 	while ((entity = media_entity_graph_walk_next(&graph))) {
@@ -394,7 +416,7 @@ static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
 		struct vsp1_rwpf *rwpf;
 		struct vsp1_entity *e;
 
-		if (media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV) {
+		if (is_media_entity_v4l2_io(entity)) {
 			pipe->num_video++;
 			continue;
 		}
@@ -420,6 +442,8 @@ static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
 
 	mutex_unlock(&mdev->graph_mutex);
 
+	media_entity_graph_walk_cleanup(&graph);
+
 	/* We need one output and at least one input. */
 	if (pipe->num_inputs == 0 || !pipe->output) {
 		ret = -EPIPE;
@@ -663,7 +687,7 @@ void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
 	pad = media_entity_remote_pad(&input->pads[RWPF_PAD_SOURCE]);
 
 	while (pad) {
-		if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
@@ -1193,7 +1217,7 @@ int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf)
 	video->pipe.state = VSP1_PIPELINE_STOPPED;
 
 	/* Initialize the media entity... */
-	ret = media_entity_init(&video->video.entity, 1, &video->pad, 0);
+	ret = media_entity_pads_init(&video->video.entity, 1, &video->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c b/drivers/media/platform/vsp1/vsp1_wpf.c
index 95b62f4f77e7..cbf514a6582d 100644
--- a/drivers/media/platform/vsp1/vsp1_wpf.c
+++ b/drivers/media/platform/vsp1/vsp1_wpf.c
@@ -220,7 +220,6 @@ struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index)
 	struct v4l2_subdev *subdev;
 	struct vsp1_video *video;
 	struct vsp1_rwpf *wpf;
-	unsigned int flags;
 	int ret;
 
 	wpf = devm_kzalloc(vsp1->dev, sizeof(*wpf), GFP_KERNEL);
@@ -276,20 +275,6 @@ struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index)
 		goto error;
 
 	wpf->entity.video = video;
-
-	/* Connect the video device to the WPF. All connections are immutable
-	 * except for the WPF0 source link if a LIF is present.
-	 */
-	flags = MEDIA_LNK_FL_ENABLED;
-	if (!(vsp1->pdata.features & VSP1_HAS_LIF) || index != 0)
-		flags |= MEDIA_LNK_FL_IMMUTABLE;
-
-	ret = media_entity_create_link(&wpf->entity.subdev.entity,
-				       RWPF_PAD_SOURCE,
-				       &wpf->video.video.entity, 0, flags);
-	if (ret < 0)
-		goto error;
-
 	wpf->entity.sink = &wpf->video.video.entity;
 
 	return wpf;
@@ -298,3 +283,28 @@ error:
 	vsp1_entity_destroy(&wpf->entity);
 	return ERR_PTR(ret);
 }
+
+/*
+ * vsp1_wpf_create_links() - RPF pads links creation
+ * @vsp1: Pointer to VSP1 device
+ * @entity: Pointer to VSP1 entity
+ *
+ * return negative error code or zero on success
+ */
+int vsp1_wpf_create_links(struct vsp1_device *vsp1,
+			       struct vsp1_entity *entity)
+{
+	struct vsp1_rwpf *wpf = to_rwpf(&entity->subdev);
+	unsigned int flags;
+
+	/* Connect the video device to the WPF. All connections are immutable
+	 * except for the WPF0 source link if a LIF is present.
+	 */
+	flags = MEDIA_LNK_FL_ENABLED;
+	if (!(vsp1->pdata.features & VSP1_HAS_LIF) || entity->index != 0)
+		flags |= MEDIA_LNK_FL_IMMUTABLE;
+
+	return media_create_pad_link(&wpf->entity.subdev.entity,
+				     RWPF_PAD_SOURCE,
+				     &wpf->video.video.entity, 0, flags);
+}
diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c
index 722758f33924..7f6898b13cac 100644
--- a/drivers/media/platform/xilinx/xilinx-dma.c
+++ b/drivers/media/platform/xilinx/xilinx-dma.c
@@ -49,8 +49,7 @@ xvip_dma_remote_subdev(struct media_pad *local, u32 *pad)
 	struct media_pad *remote;
 
 	remote = media_entity_remote_pad(local);
-	if (remote == NULL ||
-	    media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
 		return NULL;
 
 	if (pad)
@@ -113,8 +112,7 @@ static int xvip_pipeline_start_stop(struct xvip_pipeline *pipe, bool start)
 			break;
 
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = pad->entity;
@@ -181,19 +179,26 @@ static int xvip_pipeline_validate(struct xvip_pipeline *pipe,
 {
 	struct media_entity_graph graph;
 	struct media_entity *entity = &start->video.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 	unsigned int num_inputs = 0;
 	unsigned int num_outputs = 0;
+	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
 
 	/* Walk the graph to locate the video nodes. */
+	ret = media_entity_graph_walk_init(&graph, entity->graph_obj.mdev);
+	if (ret) {
+		mutex_unlock(&mdev->graph_mutex);
+		return ret;
+	}
+
 	media_entity_graph_walk_start(&graph, entity);
 
 	while ((entity = media_entity_graph_walk_next(&graph))) {
 		struct xvip_dma *dma;
 
-		if (entity->type != MEDIA_ENT_T_DEVNODE_V4L)
+		if (entity->function != MEDIA_ENT_F_IO_V4L)
 			continue;
 
 		dma = to_xvip_dma(media_entity_to_video_device(entity));
@@ -208,6 +213,8 @@ static int xvip_pipeline_validate(struct xvip_pipeline *pipe,
 
 	mutex_unlock(&mdev->graph_mutex);
 
+	media_entity_graph_walk_cleanup(&graph);
+
 	/* We need exactly one output and zero or one input. */
 	if (num_outputs != 1 || num_inputs > 1)
 		return -EPIPE;
@@ -677,7 +684,7 @@ int xvip_dma_init(struct xvip_composite_device *xdev, struct xvip_dma *dma,
 	dma->pad.flags = type == V4L2_BUF_TYPE_VIDEO_CAPTURE
 		       ? MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
 
-	ret = media_entity_init(&dma->video.entity, 1, &dma->pad, 0);
+	ret = media_entity_pads_init(&dma->video.entity, 1, &dma->pad);
 	if (ret < 0)
 		goto error;
 
diff --git a/drivers/media/platform/xilinx/xilinx-tpg.c b/drivers/media/platform/xilinx/xilinx-tpg.c
index 8bd7e3736019..2ec1f6c4b274 100644
--- a/drivers/media/platform/xilinx/xilinx-tpg.c
+++ b/drivers/media/platform/xilinx/xilinx-tpg.c
@@ -838,7 +838,7 @@ static int xtpg_probe(struct platform_device *pdev)
 	subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	subdev->entity.ops = &xtpg_media_ops;
 
-	ret = media_entity_init(&subdev->entity, xtpg->npads, xtpg->pads, 0);
+	ret = media_entity_pads_init(&subdev->entity, xtpg->npads, xtpg->pads);
 	if (ret < 0)
 		goto error;
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index b9bf24fefa5a..e795a4501e8b 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -156,7 +156,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 			local->name, local_pad->index,
 			remote->name, remote_pad->index);
 
-		ret = media_entity_create_link(local, local_pad->index,
+		ret = media_create_pad_link(local, local_pad->index,
 					       remote, remote_pad->index,
 					       link_flags);
 		if (ret < 0) {
@@ -270,7 +270,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			source->name, source_pad->index,
 			sink->name, sink_pad->index);
 
-		ret = media_entity_create_link(source, source_pad->index,
+		ret = media_create_pad_link(source, source_pad->index,
 					       sink, sink_pad->index,
 					       link_flags);
 		if (ret < 0) {
@@ -311,7 +311,7 @@ static int xvip_graph_notify_complete(struct v4l2_async_notifier *notifier)
 	if (ret < 0)
 		dev_err(xdev->dev, "failed to register subdev nodes\n");
 
-	return ret;
+	return media_device_register(&xdev->media_dev);
 }
 
 static int xvip_graph_notify_bound(struct v4l2_async_notifier *notifier,
@@ -573,6 +573,7 @@ static void xvip_composite_v4l2_cleanup(struct xvip_composite_device *xdev)
 {
 	v4l2_device_unregister(&xdev->v4l2_dev);
 	media_device_unregister(&xdev->media_dev);
+	media_device_cleanup(&xdev->media_dev);
 }
 
 static int xvip_composite_v4l2_init(struct xvip_composite_device *xdev)
@@ -584,19 +585,14 @@ static int xvip_composite_v4l2_init(struct xvip_composite_device *xdev)
 		sizeof(xdev->media_dev.model));
 	xdev->media_dev.hw_revision = 0;
 
-	ret = media_device_register(&xdev->media_dev);
-	if (ret < 0) {
-		dev_err(xdev->dev, "media device registration failed (%d)\n",
-			ret);
-		return ret;
-	}
+	media_device_init(&xdev->media_dev);
 
 	xdev->v4l2_dev.mdev = &xdev->media_dev;
 	ret = v4l2_device_register(xdev->dev, &xdev->v4l2_dev);
 	if (ret < 0) {
 		dev_err(xdev->dev, "V4L2 device registration failed (%d)\n",
 			ret);
-		media_device_unregister(&xdev->media_dev);
+		media_device_cleanup(&xdev->media_dev);
 		return ret;
 	}
 
diff --git a/drivers/media/usb/au0828/au0828-cards.c b/drivers/media/usb/au0828/au0828-cards.c
index 6b469e8c4c6e..ca861aea68a5 100644
--- a/drivers/media/usb/au0828/au0828-cards.c
+++ b/drivers/media/usb/au0828/au0828-cards.c
@@ -228,6 +228,10 @@ void au0828_card_analog_fe_setup(struct au0828_dev *dev)
 				"au8522", 0x8e >> 1, NULL);
 		if (sd == NULL)
 			pr_err("analog subdev registration failed\n");
+#ifdef CONFIG_MEDIA_CONTROLLER
+		if (sd)
+			dev->decoder = &sd->entity;
+#endif
 	}
 
 	/* Setup tuners */
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 0934024fb89d..9e29e70a78d7 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -27,6 +27,9 @@
 #include <media/v4l2-common.h>
 #include <linux/mutex.h>
 
+/* Due to enum tuner_pad_index */
+#include <media/tuner.h>
+
 /*
  * 1 = General debug messages
  * 2 = USB handling
@@ -127,8 +130,23 @@ static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
 	return status;
 }
 
+static void au0828_unregister_media_device(struct au0828_dev *dev)
+{
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	if (dev->media_dev) {
+		media_device_unregister(dev->media_dev);
+		media_device_cleanup(dev->media_dev);
+		kfree(dev->media_dev);
+		dev->media_dev = NULL;
+	}
+#endif
+}
+
 static void au0828_usb_release(struct au0828_dev *dev)
 {
+	au0828_unregister_media_device(dev);
+
 	/* I2C */
 	au0828_i2c_unregister(dev);
 
@@ -136,6 +154,20 @@ static void au0828_usb_release(struct au0828_dev *dev)
 }
 
 #ifdef CONFIG_VIDEO_AU0828_V4L2
+
+static void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+	int i;
+
+	for (i = 0; i < AU0828_MAX_INPUT; i++) {
+		if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
+			return;
+		media_device_unregister_entity(&dev->input_ent[i]);
+	}
+#endif
+}
+
 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 {
 	struct au0828_dev *dev =
@@ -143,6 +175,7 @@ static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
 
 	v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
 	v4l2_device_unregister(&dev->v4l2_dev);
+	au0828_usb_v4l2_media_release(dev);
 	au0828_usb_release(dev);
 }
 #endif
@@ -174,12 +207,123 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 		au0828_analog_unregister(dev);
 		v4l2_device_disconnect(&dev->v4l2_dev);
 		v4l2_device_put(&dev->v4l2_dev);
+		/*
+		 * No need to call au0828_usb_release() if V4L2 is enabled,
+		 * as this is already called via au0828_usb_v4l2_release()
+		 */
 		return;
 	}
 #endif
 	au0828_usb_release(dev);
 }
 
+static int au0828_media_device_init(struct au0828_dev *dev,
+				    struct usb_device *udev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device *mdev;
+
+	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+	if (!mdev)
+		return -ENOMEM;
+
+	mdev->dev = &udev->dev;
+
+	if (!dev->board.name)
+		strlcpy(mdev->model, "unknown au0828", sizeof(mdev->model));
+	else
+		strlcpy(mdev->model, dev->board.name, sizeof(mdev->model));
+	if (udev->serial)
+		strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial));
+	strcpy(mdev->bus_info, udev->devpath);
+	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
+	mdev->driver_version = LINUX_VERSION_CODE;
+
+	media_device_init(mdev);
+
+	dev->media_dev = mdev;
+#endif
+	return 0;
+}
+
+
+static int au0828_create_media_graph(struct au0828_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device *mdev = dev->media_dev;
+	struct media_entity *entity;
+	struct media_entity *tuner = NULL, *decoder = NULL;
+	int i, ret;
+
+	if (!mdev)
+		return 0;
+
+	media_device_for_each_entity(entity, mdev) {
+		switch (entity->function) {
+		case MEDIA_ENT_F_TUNER:
+			tuner = entity;
+			break;
+		case MEDIA_ENT_F_ATV_DECODER:
+			decoder = entity;
+			break;
+		}
+	}
+
+	/* Analog setup, using tuner as a link */
+
+	/* Something bad happened! */
+	if (!decoder)
+		return -EINVAL;
+
+	if (tuner) {
+		ret = media_create_pad_link(tuner, TUNER_PAD_IF_OUTPUT,
+					    decoder, 0,
+					    MEDIA_LNK_FL_ENABLED);
+		if (ret)
+			return ret;
+	}
+	ret = media_create_pad_link(decoder, 1, &dev->vdev.entity, 0,
+				    MEDIA_LNK_FL_ENABLED);
+	if (ret)
+		return ret;
+	ret = media_create_pad_link(decoder, 2, &dev->vbi_dev.entity, 0,
+				    MEDIA_LNK_FL_ENABLED);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < AU0828_MAX_INPUT; i++) {
+		struct media_entity *ent = &dev->input_ent[i];
+
+		if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
+			break;
+
+		switch (AUVI_INPUT(i).type) {
+		case AU0828_VMUX_CABLE:
+		case AU0828_VMUX_TELEVISION:
+		case AU0828_VMUX_DVB:
+			if (!tuner)
+				break;
+
+			ret = media_create_pad_link(ent, 0, tuner,
+						    TUNER_PAD_RF_INPUT,
+						    MEDIA_LNK_FL_ENABLED);
+			if (ret)
+				return ret;
+			break;
+		case AU0828_VMUX_COMPOSITE:
+		case AU0828_VMUX_SVIDEO:
+		default: /* AU0828_VMUX_DEBUG */
+			/* FIXME: fix the decoder PAD */
+			ret = media_create_pad_link(ent, 0, decoder, 0, 0);
+			if (ret)
+				return ret;
+			break;
+		}
+	}
+#endif
+	return 0;
+}
+
 static int au0828_usb_probe(struct usb_interface *interface,
 	const struct usb_device_id *id)
 {
@@ -224,11 +368,23 @@ static int au0828_usb_probe(struct usb_interface *interface,
 	dev->boardnr = id->driver_info;
 	dev->board = au0828_boards[dev->boardnr];
 
+	/* Initialize the media controller */
+	retval = au0828_media_device_init(dev, usbdev);
+	if (retval) {
+		pr_err("%s() au0828_media_device_init failed\n",
+		       __func__);
+		mutex_unlock(&dev->lock);
+		kfree(dev);
+		return retval;
+	}
 
 #ifdef CONFIG_VIDEO_AU0828_V4L2
 	dev->v4l2_dev.release = au0828_usb_v4l2_release;
 
 	/* Create the v4l2_device */
+#ifdef CONFIG_MEDIA_CONTROLLER
+	dev->v4l2_dev.mdev = dev->media_dev;
+#endif
 	retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 	if (retval) {
 		pr_err("%s() v4l2_device_register failed\n",
@@ -287,6 +443,21 @@ static int au0828_usb_probe(struct usb_interface *interface,
 
 	mutex_unlock(&dev->lock);
 
+	retval = au0828_create_media_graph(dev);
+	if (retval) {
+		pr_err("%s() au0282_dev_register failed to create graph\n",
+		       __func__);
+		goto done;
+	}
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	retval = media_device_register(dev->media_dev);
+#endif
+
+done:
+	if (retval < 0)
+		au0828_usb_disconnect(interface);
+
 	return retval;
 }
 
diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c
index c267d76f5b3c..94363a3ba400 100644
--- a/drivers/media/usb/au0828/au0828-dvb.c
+++ b/drivers/media/usb/au0828/au0828-dvb.c
@@ -415,6 +415,11 @@ static int dvb_register(struct au0828_dev *dev)
 		       result);
 		goto fail_adapter;
 	}
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	dvb->adapter.mdev = dev->media_dev;
+#endif
+
 	dvb->adapter.priv = dev;
 
 	/* register frontend */
@@ -480,8 +485,15 @@ static int dvb_register(struct au0828_dev *dev)
 
 	dvb->start_count = 0;
 	dvb->stop_count = 0;
+
+	result = dvb_create_media_graph(&dvb->adapter, false);
+	if (result < 0)
+		goto fail_create_graph;
+
 	return 0;
 
+fail_create_graph:
+	dvb_net_release(&dvb->net);
 fail_fe_conn:
 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 fail_fe_mem:
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index 0a725a161dd6..8c54fd21022e 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -638,6 +638,64 @@ static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 	return rc;
 }
 
+static int au0828_enable_analog_tuner(struct au0828_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device *mdev = dev->media_dev;
+	struct media_entity *source;
+	struct media_link *link, *found_link = NULL;
+	int ret, active_links = 0;
+
+	if (!mdev || !dev->decoder)
+		return 0;
+
+	/*
+	 * This will find the tuner that is connected into the decoder.
+	 * Technically, this is not 100% correct, as the device may be
+	 * using an analog input instead of the tuner. However, as we can't
+	 * do DVB streaming while the DMA engine is being used for V4L2,
+	 * this should be enough for the actual needs.
+	 */
+	list_for_each_entry(link, &dev->decoder->links, list) {
+		if (link->sink->entity == dev->decoder) {
+			found_link = link;
+			if (link->flags & MEDIA_LNK_FL_ENABLED)
+				active_links++;
+			break;
+		}
+	}
+
+	if (active_links == 1 || !found_link)
+		return 0;
+
+	source = found_link->source->entity;
+	list_for_each_entry(link, &source->links, list) {
+		struct media_entity *sink;
+		int flags = 0;
+
+		sink = link->sink->entity;
+
+		if (sink == dev->decoder)
+			flags = MEDIA_LNK_FL_ENABLED;
+
+		ret = media_entity_setup_link(link, flags);
+		if (ret) {
+			pr_err(
+				"Couldn't change link %s->%s to %s. Error %d\n",
+				source->name, sink->name,
+				flags ? "enabled" : "disabled",
+				ret);
+			return ret;
+		} else
+			au0828_isocdbg(
+				"link %s->%s was %s\n",
+				source->name, sink->name,
+				flags ? "ENABLED" : "disabled");
+	}
+#endif
+	return 0;
+}
+
 static int queue_setup(struct vb2_queue *vq,
 		       unsigned int *nbuffers, unsigned int *nplanes,
 		       unsigned int sizes[], void *alloc_ctxs[])
@@ -650,6 +708,8 @@ static int queue_setup(struct vb2_queue *vq,
 	*nplanes = 1;
 	sizes[0] = size;
 
+	au0828_enable_analog_tuner(dev);
+
 	return 0;
 }
 
@@ -1735,6 +1795,69 @@ static int au0828_vb2_setup(struct au0828_dev *dev)
 	return 0;
 }
 
+static void au0828_analog_create_entities(struct au0828_dev *dev)
+{
+#if defined(CONFIG_MEDIA_CONTROLLER)
+	static const char * const inames[] = {
+		[AU0828_VMUX_COMPOSITE] = "Composite",
+		[AU0828_VMUX_SVIDEO] = "S-Video",
+		[AU0828_VMUX_CABLE] = "Cable TV",
+		[AU0828_VMUX_TELEVISION] = "Television",
+		[AU0828_VMUX_DVB] = "DVB",
+		[AU0828_VMUX_DEBUG] = "tv debug"
+	};
+	int ret, i;
+
+	/* Initialize Video and VBI pads */
+	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
+	if (ret < 0)
+		pr_err("failed to initialize video media entity!\n");
+
+	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
+	if (ret < 0)
+		pr_err("failed to initialize vbi media entity!\n");
+
+	/* Create entities for each input connector */
+	for (i = 0; i < AU0828_MAX_INPUT; i++) {
+		struct media_entity *ent = &dev->input_ent[i];
+
+		if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
+			break;
+
+		ent->name = inames[AUVI_INPUT(i).type];
+		ent->flags = MEDIA_ENT_FL_CONNECTOR;
+		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
+
+		switch (AUVI_INPUT(i).type) {
+		case AU0828_VMUX_COMPOSITE:
+			ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
+			break;
+		case AU0828_VMUX_SVIDEO:
+			ent->function = MEDIA_ENT_F_CONN_SVIDEO;
+			break;
+		case AU0828_VMUX_CABLE:
+		case AU0828_VMUX_TELEVISION:
+		case AU0828_VMUX_DVB:
+			ent->function = MEDIA_ENT_F_CONN_RF;
+			break;
+		default: /* AU0828_VMUX_DEBUG */
+			ent->function = MEDIA_ENT_F_CONN_TEST;
+			break;
+		}
+
+		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
+		if (ret < 0)
+			pr_err("failed to initialize input pad[%d]!\n", i);
+
+		ret = media_device_register_entity(dev->media_dev, ent);
+		if (ret < 0)
+			pr_err("failed to register input entity %d!\n", i);
+	}
+#endif
+}
+
 /**************************************************************************/
 
 int au0828_analog_register(struct au0828_dev *dev,
@@ -1823,6 +1946,9 @@ int au0828_analog_register(struct au0828_dev *dev,
 	dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
 	strcpy(dev->vbi_dev.name, "au0828a vbi");
 
+	/* Init entities at the Media Controller */
+	au0828_analog_create_entities(dev);
+
 	/* initialize videobuf2 stuff */
 	retval = au0828_vb2_setup(dev);
 	if (retval != 0) {
diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h
index 60b59391ea2a..8276072bc55a 100644
--- a/drivers/media/usb/au0828/au0828.h
+++ b/drivers/media/usb/au0828/au0828.h
@@ -33,6 +33,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-fh.h>
+#include <media/media-device.h>
 
 /* DVB */
 #include "demux.h"
@@ -93,7 +94,6 @@ struct au0828_board {
 	unsigned char has_ir_i2c:1;
 	unsigned char has_analog:1;
 	struct au0828_input input[AU0828_MAX_INPUT];
-
 };
 
 struct au0828_dvb {
@@ -276,6 +276,14 @@ struct au0828_dev {
 	/* Preallocated transfer digital transfer buffers */
 
 	char *dig_transfer_buffer[URB_COUNT];
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	struct media_device *media_dev;
+	struct media_pad video_pad, vbi_pad;
+	struct media_entity *decoder;
+	struct media_entity input_ent[AU0828_MAX_INPUT];
+	struct media_pad input_pad[AU0828_MAX_INPUT];
+#endif
 };
 
 
diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c
index 89dc695c696e..620b83d03f75 100644
--- a/drivers/media/usb/cx231xx/cx231xx-cards.c
+++ b/drivers/media/usb/cx231xx/cx231xx-cards.c
@@ -1172,6 +1172,7 @@ static void cx231xx_unregister_media_device(struct cx231xx *dev)
 #ifdef CONFIG_MEDIA_CONTROLLER
 	if (dev->media_dev) {
 		media_device_unregister(dev->media_dev);
+		media_device_cleanup(dev->media_dev);
 		kfree(dev->media_dev);
 		dev->media_dev = NULL;
 	}
@@ -1185,8 +1186,6 @@ static void cx231xx_unregister_media_device(struct cx231xx *dev)
 */
 void cx231xx_release_resources(struct cx231xx *dev)
 {
-	cx231xx_unregister_media_device(dev);
-
 	cx231xx_release_analog_resources(dev);
 
 	cx231xx_remove_from_devlist(dev);
@@ -1199,22 +1198,23 @@ void cx231xx_release_resources(struct cx231xx *dev)
 	/* delete v4l2 device */
 	v4l2_device_unregister(&dev->v4l2_dev);
 
+	cx231xx_unregister_media_device(dev);
+
 	usb_put_dev(dev->udev);
 
 	/* Mark device as unused */
 	clear_bit(dev->devno, &cx231xx_devused);
 }
 
-static void cx231xx_media_device_register(struct cx231xx *dev,
-					  struct usb_device *udev)
+static int cx231xx_media_device_init(struct cx231xx *dev,
+				      struct usb_device *udev)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct media_device *mdev;
-	int ret;
 
 	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
 	if (!mdev)
-		return;
+		return -ENOMEM;
 
 	mdev->dev = dev->dev;
 	strlcpy(mdev->model, dev->board.name, sizeof(mdev->model));
@@ -1224,35 +1224,30 @@ static void cx231xx_media_device_register(struct cx231xx *dev,
 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
 	mdev->driver_version = LINUX_VERSION_CODE;
 
-	ret = media_device_register(mdev);
-	if (ret) {
-		dev_err(dev->dev,
-			"Couldn't create a media device. Error: %d\n",
-			ret);
-		kfree(mdev);
-		return;
-	}
+	media_device_init(mdev);
 
 	dev->media_dev = mdev;
 #endif
+	return 0;
 }
 
-static void cx231xx_create_media_graph(struct cx231xx *dev)
+static int cx231xx_create_media_graph(struct cx231xx *dev)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct media_device *mdev = dev->media_dev;
 	struct media_entity *entity;
 	struct media_entity *tuner = NULL, *decoder = NULL;
+	int ret;
 
 	if (!mdev)
-		return;
+		return 0;
 
 	media_device_for_each_entity(entity, mdev) {
-		switch (entity->type) {
-		case MEDIA_ENT_T_V4L2_SUBDEV_TUNER:
+		switch (entity->function) {
+		case MEDIA_ENT_F_TUNER:
 			tuner = entity;
 			break;
-		case MEDIA_ENT_T_V4L2_SUBDEV_DECODER:
+		case MEDIA_ENT_F_ATV_DECODER:
 			decoder = entity;
 			break;
 		}
@@ -1261,16 +1256,24 @@ static void cx231xx_create_media_graph(struct cx231xx *dev)
 	/* Analog setup, using tuner as a link */
 
 	if (!decoder)
-		return;
+		return 0;
 
-	if (tuner)
-		media_entity_create_link(tuner, 0, decoder, 0,
-					 MEDIA_LNK_FL_ENABLED);
-	media_entity_create_link(decoder, 1, &dev->vdev.entity, 0,
-				 MEDIA_LNK_FL_ENABLED);
-	media_entity_create_link(decoder, 2, &dev->vbi_dev.entity, 0,
-				 MEDIA_LNK_FL_ENABLED);
+	if (tuner) {
+		ret = media_create_pad_link(tuner, TUNER_PAD_IF_OUTPUT, decoder, 0,
+					    MEDIA_LNK_FL_ENABLED);
+		if (ret < 0)
+			return ret;
+	}
+	ret = media_create_pad_link(decoder, 1, &dev->vdev.entity, 0,
+				    MEDIA_LNK_FL_ENABLED);
+	if (ret < 0)
+		return ret;
+	ret = media_create_pad_link(decoder, 2, &dev->vbi_dev.entity, 0,
+				    MEDIA_LNK_FL_ENABLED);
+	if (ret < 0)
+		return ret;
 #endif
+	return 0;
 }
 
 /*
@@ -1660,8 +1663,12 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	/* save our data pointer in this interface device */
 	usb_set_intfdata(interface, dev);
 
-	/* Register the media controller */
-	cx231xx_media_device_register(dev, udev);
+	/* Initialize the media controller */
+	retval = cx231xx_media_device_init(dev, udev);
+	if (retval) {
+		dev_err(d, "cx231xx_media_device_init failed\n");
+		goto err_media_init;
+	}
 
 	/* Create v4l2 device */
 #ifdef CONFIG_MEDIA_CONTROLLER
@@ -1732,9 +1739,19 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	/* load other modules required */
 	request_modules(dev);
 
-	cx231xx_create_media_graph(dev);
+	retval = cx231xx_create_media_graph(dev);
+	if (retval < 0)
+		goto done;
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+	retval = media_device_register(dev->media_dev);
+#endif
+
+done:
+	if (retval < 0)
+		cx231xx_release_resources(dev);
+	return retval;
 
-	return 0;
 err_video_alt:
 	/* cx231xx_uninit_dev: */
 	cx231xx_close_extension(dev);
@@ -1746,6 +1763,8 @@ err_video_alt:
 err_init:
 	v4l2_device_unregister(&dev->v4l2_dev);
 err_v4l2:
+	cx231xx_unregister_media_device(dev);
+err_media_init:
 	usb_set_intfdata(interface, NULL);
 err_if:
 	usb_put_dev(udev);
diff --git a/drivers/media/usb/cx231xx/cx231xx-dvb.c b/drivers/media/usb/cx231xx/cx231xx-dvb.c
index e3594b9fab4a..b8d5b2be9293 100644
--- a/drivers/media/usb/cx231xx/cx231xx-dvb.c
+++ b/drivers/media/usb/cx231xx/cx231xx-dvb.c
@@ -551,10 +551,14 @@ static int register_dvb(struct cx231xx_dvb *dvb,
 
 	/* register network adapter */
 	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
-	dvb_create_media_graph(&dvb->adapter);
+	result = dvb_create_media_graph(&dvb->adapter, false);
+	if (result < 0)
+		goto fail_create_graph;
 
 	return 0;
 
+fail_create_graph:
+	dvb_net_release(&dvb->net);
 fail_fe_conn:
 	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 fail_fe_mem:
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index a70850fe6235..9b88cd8127ac 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -106,7 +106,7 @@ static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
 	struct media_device *mdev = dev->media_dev;
 	struct media_entity  *entity, *decoder = NULL, *source;
 	struct media_link *link, *found_link = NULL;
-	int i, ret, active_links = 0;
+	int ret, active_links = 0;
 
 	if (!mdev)
 		return 0;
@@ -119,7 +119,7 @@ static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
 	 * this should be enough for the actual needs.
 	 */
 	media_device_for_each_entity(entity, mdev) {
-		if (entity->type == MEDIA_ENT_T_V4L2_SUBDEV_DECODER) {
+		if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 			decoder = entity;
 			break;
 		}
@@ -127,8 +127,7 @@ static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
 	if (!decoder)
 		return 0;
 
-	for (i = 0; i < decoder->num_links; i++) {
-		link = &decoder->links[i];
+	list_for_each_entry(link, &decoder->links, list) {
 		if (link->sink->entity == decoder) {
 			found_link = link;
 			if (link->flags & MEDIA_LNK_FL_ENABLED)
@@ -141,11 +140,10 @@ static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
 		return 0;
 
 	source = found_link->source->entity;
-	for (i = 0; i < source->num_links; i++) {
+	list_for_each_entry(link, &source->links, list) {
 		struct media_entity *sink;
 		int flags = 0;
 
-		link = &source->links[i];
 		sink = link->sink->entity;
 
 		if (sink == entity)
@@ -2177,7 +2175,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
 	cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad, 0);
+	ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
 	if (ret < 0)
 		dev_err(dev->dev, "failed to initialize video media entity!\n");
 #endif
@@ -2204,7 +2202,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
-	ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad, 0);
+	ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
 	if (ret < 0)
 		dev_err(dev->dev, "failed to initialize vbi media entity!\n");
 #endif
diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
index f5df9eaba04f..f0565bf3673e 100644
--- a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
+++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
@@ -400,17 +400,16 @@ skip_feed_stop:
 	return ret;
 }
 
-static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
+static int dvb_usbv2_media_device_init(struct dvb_usb_adapter *adap)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	struct media_device *mdev;
 	struct dvb_usb_device *d = adap_to_d(adap);
 	struct usb_device *udev = d->udev;
-	int ret;
 
 	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
 	if (!mdev)
-		return;
+		return -ENOMEM;
 
 	mdev->dev = &udev->dev;
 	strlcpy(mdev->model, d->name, sizeof(mdev->model));
@@ -420,19 +419,21 @@ static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
 	mdev->driver_version = LINUX_VERSION_CODE;
 
-	ret = media_device_register(mdev);
-	if (ret) {
-		dev_err(&d->udev->dev,
-			"Couldn't create a media device. Error: %d\n",
-			ret);
-		kfree(mdev);
-		return;
-	}
+	media_device_init(mdev);
 
 	dvb_register_media_controller(&adap->dvb_adap, mdev);
 
 	dev_info(&d->udev->dev, "media controller created\n");
+#endif
+	return 0;
+}
 
+static int dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	return media_device_register(adap->dvb_adap.mdev);
+#else
+	return 0;
 #endif
 }
 
@@ -444,6 +445,7 @@ static void dvb_usbv2_media_device_unregister(struct dvb_usb_adapter *adap)
 		return;
 
 	media_device_unregister(adap->dvb_adap.mdev);
+	media_device_cleanup(adap->dvb_adap.mdev);
 	kfree(adap->dvb_adap.mdev);
 	adap->dvb_adap.mdev = NULL;
 
@@ -467,7 +469,12 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
 
 	adap->dvb_adap.priv = adap;
 
-	dvb_usbv2_media_device_register(adap);
+	ret = dvb_usbv2_media_device_init(adap);
+	if (ret < 0) {
+		dev_dbg(&d->udev->dev, "%s: dvb_usbv2_media_device_init() failed=%d\n",
+				__func__, ret);
+		goto err_dvb_register_mc;
+	}
 
 	if (d->props->read_mac_address) {
 		ret = d->props->read_mac_address(adap,
@@ -518,6 +525,7 @@ err_dvb_dmxdev_init:
 	dvb_dmx_release(&adap->demux);
 err_dvb_dmx_init:
 	dvb_usbv2_media_device_unregister(adap);
+err_dvb_register_mc:
 	dvb_unregister_adapter(&adap->dvb_adap);
 err_dvb_register_adapter:
 	adap->dvb_adap.priv = NULL;
@@ -534,7 +542,6 @@ static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap)
 		adap->demux.dmx.close(&adap->demux.dmx);
 		dvb_dmxdev_release(&adap->dmxdev);
 		dvb_dmx_release(&adap->demux);
-		dvb_usbv2_media_device_unregister(adap);
 		dvb_unregister_adapter(&adap->dvb_adap);
 	}
 
@@ -698,9 +705,13 @@ static int dvb_usbv2_adapter_frontend_init(struct dvb_usb_adapter *adap)
 		}
 	}
 
-	dvb_create_media_graph(&adap->dvb_adap);
+	ret = dvb_create_media_graph(&adap->dvb_adap, true);
+	if (ret < 0)
+		goto err_dvb_unregister_frontend;
 
-	return 0;
+	ret = dvb_usbv2_media_device_register(adap);
+
+	return ret;
 
 err_dvb_unregister_frontend:
 	for (i = count_registered - 1; i >= 0; i--)
@@ -840,6 +851,7 @@ static int dvb_usbv2_adapter_exit(struct dvb_usb_device *d)
 			dvb_usbv2_adapter_dvb_exit(&d->adapter[i]);
 			dvb_usbv2_adapter_stream_exit(&d->adapter[i]);
 			dvb_usbv2_adapter_frontend_exit(&d->adapter[i]);
+			dvb_usbv2_media_device_unregister(&d->adapter[i]);
 		}
 	}
 
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index 1710f9038d75..b669deccc34c 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -10,6 +10,7 @@
 
 #include <linux/vmalloc.h>
 #include <linux/i2c.h>
+#include <media/tuner.h>
 
 #include "mxl111sf.h"
 #include "mxl111sf-reg.h"
@@ -868,6 +869,10 @@ static struct mxl111sf_tuner_config mxl_tuner_config = {
 static int mxl111sf_attach_tuner(struct dvb_usb_adapter *adap)
 {
 	struct mxl111sf_state *state = adap_to_priv(adap);
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	struct media_device *mdev = dvb_get_media_controller(&adap->dvb_adap);
+	int ret;
+#endif
 	int i;
 
 	pr_debug("%s()\n", __func__);
@@ -879,6 +884,21 @@ static int mxl111sf_attach_tuner(struct dvb_usb_adapter *adap)
 		adap->fe[i]->ops.read_signal_strength = adap->fe[i]->ops.tuner_ops.get_rf_strength;
 	}
 
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	state->tuner.function = MEDIA_ENT_F_TUNER;
+	state->tuner.name = "mxl111sf tuner";
+	state->tuner_pads[TUNER_PAD_RF_INPUT].flags = MEDIA_PAD_FL_SINK;
+	state->tuner_pads[TUNER_PAD_IF_OUTPUT].flags = MEDIA_PAD_FL_SOURCE;
+
+	ret = media_entity_pads_init(&state->tuner,
+				     TUNER_NUM_PADS, state->tuner_pads);
+	if (ret)
+		return ret;
+
+	ret = media_device_register_entity(mdev, &state->tuner);
+	if (ret)
+		return ret;
+#endif
 	return 0;
 }
 
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.h b/drivers/media/usb/dvb-usb-v2/mxl111sf.h
index ee70df1f1e94..846260e0eec0 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.h
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.h
@@ -17,6 +17,7 @@
 #define DVB_USB_LOG_PREFIX "mxl111sf"
 #include "dvb_usb.h"
 #include <media/tveeprom.h>
+#include <media/media-entity.h>
 
 #define MXL_EP1_REG_READ     1
 #define MXL_EP2_REG_WRITE    2
@@ -85,6 +86,10 @@ struct mxl111sf_state {
 	struct mutex fe_lock;
 	u8 num_frontends;
 	struct mxl111sf_adap_state adap_state[3];
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	struct media_entity tuner;
+	struct media_pad tuner_pads[2];
+#endif
 };
 
 int mxl111sf_read_reg(struct mxl111sf_state *state, u8 addr, u8 *data);
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-dvb.c b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
index 8a260c854653..9ddfcab268be 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
@@ -95,17 +95,16 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 	return dvb_usb_ctrl_feed(dvbdmxfeed, 0);
 }
 
-static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
+static int dvb_usb_media_device_init(struct dvb_usb_adapter *adap)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	struct media_device *mdev;
 	struct dvb_usb_device *d = adap->dev;
 	struct usb_device *udev = d->udev;
-	int ret;
 
 	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
 	if (!mdev)
-		return;
+		return -ENOMEM;
 
 	mdev->dev = &udev->dev;
 	strlcpy(mdev->model, d->desc->name, sizeof(mdev->model));
@@ -115,18 +114,22 @@ static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
 	mdev->driver_version = LINUX_VERSION_CODE;
 
-	ret = media_device_register(mdev);
-	if (ret) {
-		dev_err(&d->udev->dev,
-			"Couldn't create a media device. Error: %d\n",
-			ret);
-		kfree(mdev);
-		return;
-	}
+	media_device_init(mdev);
+
 	dvb_register_media_controller(&adap->dvb_adap, mdev);
 
 	dev_info(&d->udev->dev, "media controller created\n");
 #endif
+	return 0;
+}
+
+static int  dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	return media_device_register(adap->dvb_adap.mdev);
+#else
+	return 0;
+#endif
 }
 
 static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
@@ -136,6 +139,7 @@ static void dvb_usb_media_device_unregister(struct dvb_usb_adapter *adap)
 		return;
 
 	media_device_unregister(adap->dvb_adap.mdev);
+	media_device_cleanup(adap->dvb_adap.mdev);
 	kfree(adap->dvb_adap.mdev);
 	adap->dvb_adap.mdev = NULL;
 #endif
@@ -154,7 +158,11 @@ int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
 	}
 	adap->dvb_adap.priv = adap;
 
-	dvb_usb_media_device_register(adap);
+	ret = dvb_usb_media_device_init(adap);
+	if (ret < 0) {
+		deb_info("dvb_usb_media_device_init failed: error %d", ret);
+		goto err_mc;
+	}
 
 	if (adap->dev->props.read_mac_address) {
 		if (adap->dev->props.read_mac_address(adap->dev, adap->dvb_adap.proposed_mac) == 0)
@@ -204,6 +212,7 @@ err_dmx_dev:
 	dvb_dmx_release(&adap->demux);
 err_dmx:
 	dvb_usb_media_device_unregister(adap);
+err_mc:
 	dvb_unregister_adapter(&adap->dvb_adap);
 err:
 	return ret;
@@ -318,10 +327,16 @@ int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap)
 
 		adap->num_frontends_initialized++;
 	}
+	if (ret)
+		return ret;
 
-	dvb_create_media_graph(&adap->dvb_adap);
+	ret = dvb_create_media_graph(&adap->dvb_adap, true);
+	if (ret)
+		return ret;
 
-	return 0;
+	ret = dvb_usb_media_device_register(adap);
+
+	return ret;
 }
 
 int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap)
diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index c945e4c2fbd4..8abbd3cc8eba 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -361,10 +361,11 @@ static void *siano_media_device_register(struct smsusb_device_t *dev,
 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
 	mdev->driver_version = LINUX_VERSION_CODE;
 
+	media_device_init(mdev);
+
 	ret = media_device_register(mdev);
 	if (ret) {
-		pr_err("Couldn't create a media device. Error: %d\n",
-			ret);
+		media_device_cleanup(mdev);
 		kfree(mdev);
 		return NULL;
 	}
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 39abbafad796..4e7148815a78 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1656,6 +1656,7 @@ static void uvc_delete(struct uvc_device *dev)
 #ifdef CONFIG_MEDIA_CONTROLLER
 	if (media_devnode_is_registered(&dev->mdev.devnode))
 		media_device_unregister(&dev->mdev);
+	media_device_cleanup(&dev->mdev);
 #endif
 
 	list_for_each_safe(p, n, &dev->chains) {
@@ -1906,7 +1907,7 @@ static int uvc_probe(struct usb_interface *intf,
 			"linux-uvc-devel mailing list.\n");
 	}
 
-	/* Register the media and V4L2 devices. */
+	/* Initialize the media device and register the V4L2 device. */
 #ifdef CONFIG_MEDIA_CONTROLLER
 	dev->mdev.dev = &intf->dev;
 	strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model));
@@ -1916,8 +1917,7 @@ static int uvc_probe(struct usb_interface *intf,
 	strcpy(dev->mdev.bus_info, udev->devpath);
 	dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
 	dev->mdev.driver_version = LINUX_VERSION_CODE;
-	if (media_device_register(&dev->mdev) < 0)
-		goto error;
+	media_device_init(&dev->mdev);
 
 	dev->vdev.mdev = &dev->mdev;
 #endif
@@ -1936,6 +1936,11 @@ static int uvc_probe(struct usb_interface *intf,
 	if (uvc_register_chains(dev) < 0)
 		goto error;
 
+#ifdef CONFIG_MEDIA_CONTROLLER
+	/* Register the media device node */
+	if (media_device_register(&dev->mdev) < 0)
+		goto error;
+#endif
 	/* Save our data pointer in the interface data. */
 	usb_set_intfdata(intf, dev);
 
diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c
index dc56a59ecadc..ac386bb547e6 100644
--- a/drivers/media/usb/uvc/uvc_entity.c
+++ b/drivers/media/usb/uvc/uvc_entity.c
@@ -19,12 +19,8 @@
 
 #include "uvcvideo.h"
 
-/* ------------------------------------------------------------------------
- * Video subdevices registration and unregistration
- */
-
-static int uvc_mc_register_entity(struct uvc_video_chain *chain,
-	struct uvc_entity *entity)
+static int uvc_mc_create_links(struct uvc_video_chain *chain,
+				    struct uvc_entity *entity)
 {
 	const u32 flags = MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE;
 	struct media_entity *sink;
@@ -56,16 +52,13 @@ static int uvc_mc_register_entity(struct uvc_video_chain *chain,
 			continue;
 
 		remote_pad = remote->num_pads - 1;
-		ret = media_entity_create_link(source, remote_pad,
+		ret = media_create_pad_link(source, remote_pad,
 					       sink, i, flags);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (UVC_ENTITY_TYPE(entity) == UVC_TT_STREAMING)
-		return 0;
-
-	return v4l2_device_register_subdev(&chain->dev->vdev, &entity->subdev);
+	return 0;
 }
 
 static struct v4l2_subdev_ops uvc_subdev_ops = {
@@ -79,7 +72,8 @@ void uvc_mc_cleanup_entity(struct uvc_entity *entity)
 		media_entity_cleanup(&entity->vdev->entity);
 }
 
-static int uvc_mc_init_entity(struct uvc_entity *entity)
+static int uvc_mc_init_entity(struct uvc_video_chain *chain,
+			      struct uvc_entity *entity)
 {
 	int ret;
 
@@ -88,11 +82,17 @@ static int uvc_mc_init_entity(struct uvc_entity *entity)
 		strlcpy(entity->subdev.name, entity->name,
 			sizeof(entity->subdev.name));
 
-		ret = media_entity_init(&entity->subdev.entity,
-					entity->num_pads, entity->pads, 0);
+		ret = media_entity_pads_init(&entity->subdev.entity,
+					entity->num_pads, entity->pads);
+
+		if (ret < 0)
+			return ret;
+
+		ret = v4l2_device_register_subdev(&chain->dev->vdev,
+						  &entity->subdev);
 	} else if (entity->vdev != NULL) {
-		ret = media_entity_init(&entity->vdev->entity,
-					entity->num_pads, entity->pads, 0);
+		ret = media_entity_pads_init(&entity->vdev->entity,
+					entity->num_pads, entity->pads);
 		if (entity->flags & UVC_ENTITY_FLAG_DEFAULT)
 			entity->vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
 	} else
@@ -107,7 +107,7 @@ int uvc_mc_register_entities(struct uvc_video_chain *chain)
 	int ret;
 
 	list_for_each_entry(entity, &chain->entities, chain) {
-		ret = uvc_mc_init_entity(entity);
+		ret = uvc_mc_init_entity(chain, entity);
 		if (ret < 0) {
 			uvc_printk(KERN_INFO, "Failed to initialize entity for "
 				   "entity %u\n", entity->id);
@@ -116,9 +116,9 @@ int uvc_mc_register_entities(struct uvc_video_chain *chain)
 	}
 
 	list_for_each_entry(entity, &chain->entities, chain) {
-		ret = uvc_mc_register_entity(chain, entity);
+		ret = uvc_mc_create_links(chain, entity);
 		if (ret < 0) {
-			uvc_printk(KERN_INFO, "Failed to register entity for "
+			uvc_printk(KERN_INFO, "Failed to create links for "
 				   "entity %u\n", entity->id);
 			return ret;
 		}
diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index 581e21ad6801..76496fd282aa 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -134,8 +134,9 @@ struct tuner {
 	unsigned int        type; /* chip type id */
 	void                *config;
 	const char          *name;
+
 #if defined(CONFIG_MEDIA_CONTROLLER)
-	struct media_pad	pad;
+	struct media_pad	pad[TUNER_NUM_PADS];
 #endif
 };
 
@@ -695,11 +696,12 @@ static int tuner_probe(struct i2c_client *client,
 	/* Should be just before return */
 register_client:
 #if defined(CONFIG_MEDIA_CONTROLLER)
-	t->pad.flags = MEDIA_PAD_FL_SOURCE;
-	t->sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_TUNER;
+	t->pad[TUNER_PAD_RF_INPUT].flags = MEDIA_PAD_FL_SINK;
+	t->pad[TUNER_PAD_IF_OUTPUT].flags = MEDIA_PAD_FL_SOURCE;
+	t->sd.entity.function = MEDIA_ENT_F_TUNER;
 	t->sd.entity.name = t->name;
 
-	ret = media_entity_init(&t->sd.entity, 1, &t->pad, 0);
+	ret = media_entity_pads_init(&t->sd.entity, TUNER_NUM_PADS, &t->pad[0]);
 	if (ret < 0) {
 		tuner_err("failed to initialize media entity!\n");
 		kfree(t);
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index 6b1eaeddbdb3..d8e5994cccf1 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -194,9 +194,12 @@ static void v4l2_device_release(struct device *cd)
 	mutex_unlock(&videodev_lock);
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
-	if (v4l2_dev->mdev &&
-	    vdev->vfl_type != VFL_TYPE_SUBDEV)
-		media_device_unregister_entity(&vdev->entity);
+	if (v4l2_dev->mdev) {
+		/* Remove interfaces and interface links */
+		media_devnode_remove(vdev->intf_devnode);
+		if (vdev->entity.function != MEDIA_ENT_F_UNKNOWN)
+			media_device_unregister_entity(&vdev->entity);
+	}
 #endif
 
 	/* Do not call v4l2_device_put if there is no release callback set.
@@ -723,6 +726,91 @@ static void determine_valid_ioctls(struct video_device *vdev)
 			BASE_VIDIOC_PRIVATE);
 }
 
+static int video_register_media_controller(struct video_device *vdev, int type)
+{
+#if defined(CONFIG_MEDIA_CONTROLLER)
+	u32 intf_type;
+	int ret;
+
+	if (!vdev->v4l2_dev->mdev)
+		return 0;
+
+	vdev->entity.function = MEDIA_ENT_F_UNKNOWN;
+
+	switch (type) {
+	case VFL_TYPE_GRABBER:
+		intf_type = MEDIA_INTF_T_V4L_VIDEO;
+		vdev->entity.function = MEDIA_ENT_F_IO_V4L;
+		break;
+	case VFL_TYPE_VBI:
+		intf_type = MEDIA_INTF_T_V4L_VBI;
+		vdev->entity.function = MEDIA_ENT_F_IO_VBI;
+		break;
+	case VFL_TYPE_SDR:
+		intf_type = MEDIA_INTF_T_V4L_SWRADIO;
+		vdev->entity.function = MEDIA_ENT_F_IO_SWRADIO;
+		break;
+	case VFL_TYPE_RADIO:
+		intf_type = MEDIA_INTF_T_V4L_RADIO;
+		/*
+		 * Radio doesn't have an entity at the V4L2 side to represent
+		 * radio input or output. Instead, the audio input/output goes
+		 * via either physical wires or ALSA.
+		 */
+		break;
+	case VFL_TYPE_SUBDEV:
+		intf_type = MEDIA_INTF_T_V4L_SUBDEV;
+		/* Entity will be created via v4l2_device_register_subdev() */
+		break;
+	default:
+		return 0;
+	}
+
+	if (vdev->entity.function != MEDIA_ENT_F_UNKNOWN) {
+		vdev->entity.name = vdev->name;
+
+		/* Needed just for backward compatibility with legacy MC API */
+		vdev->entity.info.dev.major = VIDEO_MAJOR;
+		vdev->entity.info.dev.minor = vdev->minor;
+
+		ret = media_device_register_entity(vdev->v4l2_dev->mdev,
+						   &vdev->entity);
+		if (ret < 0) {
+			printk(KERN_WARNING
+				"%s: media_device_register_entity failed\n",
+				__func__);
+			return ret;
+		}
+	}
+
+	vdev->intf_devnode = media_devnode_create(vdev->v4l2_dev->mdev,
+						  intf_type,
+						  0, VIDEO_MAJOR,
+						  vdev->minor);
+	if (!vdev->intf_devnode) {
+		media_device_unregister_entity(&vdev->entity);
+		return -ENOMEM;
+	}
+
+	if (vdev->entity.function != MEDIA_ENT_F_UNKNOWN) {
+		struct media_link *link;
+
+		link = media_create_intf_link(&vdev->entity,
+					      &vdev->intf_devnode->intf,
+					      MEDIA_LNK_FL_ENABLED);
+		if (!link) {
+			media_devnode_remove(vdev->intf_devnode);
+			media_device_unregister_entity(&vdev->entity);
+			return -ENOMEM;
+		}
+	}
+
+	/* FIXME: how to create the other interface links? */
+
+#endif
+	return 0;
+}
+
 /**
  *	__video_register_device - register video4linux devices
  *	@vdev: video device structure we want to register
@@ -918,22 +1006,9 @@ int __video_register_device(struct video_device *vdev, int type, int nr,
 	/* Increase v4l2_device refcount */
 	v4l2_device_get(vdev->v4l2_dev);
 
-#if defined(CONFIG_MEDIA_CONTROLLER)
 	/* Part 5: Register the entity. */
-	if (vdev->v4l2_dev->mdev &&
-	    vdev->vfl_type != VFL_TYPE_SUBDEV) {
-		vdev->entity.type = MEDIA_ENT_T_DEVNODE_V4L;
-		vdev->entity.name = vdev->name;
-		vdev->entity.info.dev.major = VIDEO_MAJOR;
-		vdev->entity.info.dev.minor = vdev->minor;
-		ret = media_device_register_entity(vdev->v4l2_dev->mdev,
-			&vdev->entity);
-		if (ret < 0)
-			printk(KERN_WARNING
-			       "%s: media_device_register_entity failed\n",
-			       __func__);
-	}
-#endif
+	ret = video_register_media_controller(vdev, type);
+
 	/* Part 6: Activate this minor. The char device can now be used. */
 	set_bit(V4L2_FL_REGISTERED, &vdev->flags);
 
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
index 7129e438f29e..06fa5f1b2cff 100644
--- a/drivers/media/v4l2-core/v4l2-device.c
+++ b/drivers/media/v4l2-core/v4l2-device.c
@@ -180,26 +180,26 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
 		return -ENODEV;
 
 	sd->v4l2_dev = v4l2_dev;
-	if (sd->internal_ops && sd->internal_ops->registered) {
-		err = sd->internal_ops->registered(sd);
-		if (err)
-			goto error_module;
-	}
-
 	/* This just returns 0 if either of the two args is NULL */
 	err = v4l2_ctrl_add_handler(v4l2_dev->ctrl_handler, sd->ctrl_handler, NULL);
 	if (err)
-		goto error_unregister;
+		goto error_module;
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	/* Register the entity. */
 	if (v4l2_dev->mdev) {
 		err = media_device_register_entity(v4l2_dev->mdev, entity);
 		if (err < 0)
-			goto error_unregister;
+			goto error_module;
 	}
 #endif
 
+	if (sd->internal_ops && sd->internal_ops->registered) {
+		err = sd->internal_ops->registered(sd);
+		if (err)
+			goto error_unregister;
+	}
+
 	spin_lock(&v4l2_dev->lock);
 	list_add_tail(&sd->list, &v4l2_dev->subdevs);
 	spin_unlock(&v4l2_dev->lock);
@@ -207,8 +207,9 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
 	return 0;
 
 error_unregister:
-	if (sd->internal_ops && sd->internal_ops->unregistered)
-		sd->internal_ops->unregistered(sd);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+	media_device_unregister_entity(entity);
+#endif
 error_module:
 	if (!sd->owner_v4l2_dev)
 		module_put(sd->owner);
@@ -258,6 +259,19 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev)
 #if defined(CONFIG_MEDIA_CONTROLLER)
 		sd->entity.info.dev.major = VIDEO_MAJOR;
 		sd->entity.info.dev.minor = vdev->minor;
+
+		/* Interface is created by __video_register_device() */
+		if (vdev->v4l2_dev->mdev) {
+			struct media_link *link;
+
+			link = media_create_intf_link(&sd->entity,
+						      &vdev->intf_devnode->intf,
+						      MEDIA_LNK_FL_ENABLED);
+			if (!link) {
+				err = -ENOMEM;
+				goto clean_up;
+			}
+		}
 #endif
 		sd->devnode = vdev;
 	}
@@ -294,7 +308,10 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd)
 
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	if (v4l2_dev->mdev) {
-		media_entity_remove_links(&sd->entity);
+		/*
+		 * No need to explicitly remove links, as both pads and
+		 * links are removed by the function below, in the right order
+		 */
 		media_device_unregister_entity(&sd->entity);
 	}
 #endif
diff --git a/drivers/media/v4l2-core/v4l2-flash-led-class.c b/drivers/media/v4l2-core/v4l2-flash-led-class.c
index 5d673357f75f..fc5ff8b215f9 100644
--- a/drivers/media/v4l2-core/v4l2-flash-led-class.c
+++ b/drivers/media/v4l2-core/v4l2-flash-led-class.c
@@ -651,11 +651,11 @@ struct v4l2_flash *v4l2_flash_init(
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	strlcpy(sd->name, config->dev_name, sizeof(sd->name));
 
-	ret = media_entity_init(&sd->entity, 0, NULL, 0);
+	ret = media_entity_pads_init(&sd->entity, 0, NULL);
 	if (ret < 0)
 		return ERR_PTR(ret);
 
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+	sd->entity.function = MEDIA_ENT_F_FLASH;
 
 	ret = v4l2_flash_init_controls(v4l2_flash, config);
 	if (ret < 0)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 83615b8fb46a..d63083803144 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -526,7 +526,7 @@ static int
 v4l2_subdev_link_validate_get_format(struct media_pad *pad,
 				     struct v4l2_subdev_format *fmt)
 {
-	if (media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV) {
+	if (is_media_entity_v4l2_subdev(pad->entity)) {
 		struct v4l2_subdev *sd =
 			media_entity_to_v4l2_subdev(pad->entity);
 
@@ -535,9 +535,9 @@ v4l2_subdev_link_validate_get_format(struct media_pad *pad,
 		return v4l2_subdev_call(sd, pad, get_fmt, NULL, fmt);
 	}
 
-	WARN(pad->entity->type != MEDIA_ENT_T_DEVNODE_V4L,
+	WARN(pad->entity->function != MEDIA_ENT_F_IO_V4L,
 	     "Driver bug! Wrong media entity type 0x%08x, entity %s\n",
-	     pad->entity->type, pad->entity->name);
+	     pad->entity->function, pad->entity->name);
 
 	return -EINVAL;
 }
@@ -584,7 +584,7 @@ void v4l2_subdev_init(struct v4l2_subdev *sd, const struct v4l2_subdev_ops *ops)
 	sd->host_priv = NULL;
 #if defined(CONFIG_MEDIA_CONTROLLER)
 	sd->entity.name = sd->name;
-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
+	sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
 #endif
 }
 EXPORT_SYMBOL(v4l2_subdev_init);
diff --git a/drivers/mfd/88pm80x.c b/drivers/mfd/88pm80x.c
index 63445ea6b0bf..3f24ecbe2576 100644
--- a/drivers/mfd/88pm80x.c
+++ b/drivers/mfd/88pm80x.c
@@ -135,7 +135,7 @@ EXPORT_SYMBOL_GPL(pm80x_deinit);
 #ifdef CONFIG_PM_SLEEP
 static int pm80x_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct pm80x_chip *chip = i2c_get_clientdata(client);
 
 	if (chip && chip->wu_flag)
@@ -147,7 +147,7 @@ static int pm80x_suspend(struct device *dev)
 
 static int pm80x_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct pm80x_chip *chip = i2c_get_clientdata(client);
 
 	if (chip && chip->wu_flag)
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 3269a9990b24..25e1aafae60c 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -705,10 +705,12 @@ int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client)
 			chip->osc_status);
 
 	mutex_lock(&chip->osc_lock);
-	/*Update voting status */
+	/* Update voting status */
 	chip->osc_vote &= ~(client);
-	/* If reference group is off and this is the last client to release
-	 * - turn off */
+	/*
+	 * If reference group is off and this is the last client to release
+	 * - turn off
+	 */
 	if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) &&
 			(chip->osc_vote == REF_GP_NO_CLIENTS)) {
 		chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN;
@@ -1218,7 +1220,7 @@ static int pm860x_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int pm860x_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct pm860x_chip *chip = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev) && chip->wakeup_flag)
@@ -1228,7 +1230,7 @@ static int pm860x_suspend(struct device *dev)
 
 static int pm860x_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct pm860x_chip *chip = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev) && chip->wakeup_flag)
@@ -1265,6 +1267,7 @@ static struct i2c_driver pm860x_driver = {
 static int __init pm860x_i2c_init(void)
 {
 	int ret;
+
 	ret = i2c_add_driver(&pm860x_driver);
 	if (ret != 0)
 		pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 4d92df6ef9fe..9ca66de0c1c1 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -211,7 +211,7 @@ config MFD_DA9062
 	  of the device.
 
 config MFD_DA9063
-	bool "Dialog Semiconductor DA9063 PMIC Support"
+	tristate "Dialog Semiconductor DA9063 PMIC Support"
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
@@ -1370,24 +1370,30 @@ config MFD_ARIZONA
 	bool
 
 config MFD_ARIZONA_I2C
-	tristate "Wolfson Microelectronics Arizona platform with I2C"
+	tristate "Cirrus Logic/Wolfson Microelectronics Arizona platform with I2C"
 	select MFD_ARIZONA
 	select MFD_CORE
 	select REGMAP_I2C
 	depends on I2C
 	help
-	  Support for the Wolfson Microelectronics Arizona platform audio SoC
-	  core functionality controlled via I2C.
+	  Support for the Cirrus Logic/Wolfson Microelectronics Arizona platform
+	  audio SoC core functionality controlled via I2C.
 
 config MFD_ARIZONA_SPI
-	tristate "Wolfson Microelectronics Arizona platform with SPI"
+	tristate "Cirrus Logic/Wolfson Microelectronics Arizona platform with SPI"
 	select MFD_ARIZONA
 	select MFD_CORE
 	select REGMAP_SPI
 	depends on SPI_MASTER
 	help
-	  Support for the Wolfson Microelectronics Arizona platform audio SoC
-	  core functionality controlled via I2C.
+	  Support for the Cirrus Logic/Wolfson Microelectronics Arizona platform
+	  audio SoC core functionality controlled via I2C.
+
+config MFD_CS47L24
+	bool "Cirrus Logic CS47L24 and WM1831"
+	depends on MFD_ARIZONA
+	help
+	  Support for Cirrus Logic CS47L24 and WM1831 low power audio SoC
 
 config MFD_WM5102
 	bool "Wolfson Microelectronics WM5102"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index a8b76b81b467..0f230a6103f8 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -51,6 +51,9 @@ endif
 ifeq ($(CONFIG_MFD_WM8998),y)
 obj-$(CONFIG_MFD_ARIZONA)	+= wm8998-tables.o
 endif
+ifeq ($(CONFIG_MFD_CS47L24),y)
+obj-$(CONFIG_MFD_ARIZONA)	+= cs47l24-tables.o
+endif
 obj-$(CONFIG_MFD_WM8400)	+= wm8400-core.o
 wm831x-objs			:= wm831x-core.o wm831x-irq.o wm831x-otp.o
 wm831x-objs			+= wm831x-auxadc.o
@@ -61,7 +64,8 @@ wm8350-objs			:= wm8350-core.o wm8350-regmap.o wm8350-gpio.o
 wm8350-objs			+= wm8350-irq.o
 obj-$(CONFIG_MFD_WM8350)	+= wm8350.o
 obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o
-obj-$(CONFIG_MFD_WM8994)	+= wm8994-core.o wm8994-irq.o wm8994-regmap.o
+wm8994-objs			:= wm8994-core.o wm8994-irq.o wm8994-regmap.o
+obj-$(CONFIG_MFD_WM8994)	+= wm8994.o
 
 obj-$(CONFIG_TPS6105X)		+= tps6105x.o
 obj-$(CONFIG_TPS65010)		+= tps65010.o
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 29b6a2d4ac72..3ba19a45f199 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -373,11 +373,8 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 
 	aat2870 = devm_kzalloc(&client->dev, sizeof(struct aat2870_data),
 				GFP_KERNEL);
-	if (!aat2870) {
-		dev_err(&client->dev,
-			"Failed to allocate memory for aat2870\n");
+	if (!aat2870)
 		return -ENOMEM;
-	}
 
 	aat2870->dev = &client->dev;
 	dev_set_drvdata(aat2870->dev, aat2870);
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index f0afb44271f8..6a5a98806cb8 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -381,9 +381,11 @@ static int ab3100_event_registers_startup_state_get(struct device *dev,
 					     u8 *event)
 {
 	struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
+
 	if (!ab3100->startup_events_read)
 		return -EAGAIN; /* Try again later */
 	memcpy(event, ab3100->startup_events, 3);
+
 	return 0;
 }
 
@@ -858,10 +860,8 @@ static int ab3100_probe(struct i2c_client *client,
 	int i;
 
 	ab3100 = devm_kzalloc(&client->dev, sizeof(struct ab3100), GFP_KERNEL);
-	if (!ab3100) {
-		dev_err(&client->dev, "could not allocate AB3100 device\n");
+	if (!ab3100)
 		return -ENOMEM;
-	}
 
 	/* Initialize data structure */
 	mutex_init(&ab3100->access_mutex);
@@ -883,20 +883,17 @@ static int ab3100_probe(struct i2c_client *client,
 
 	for (i = 0; ids[i].id != 0x0; i++) {
 		if (ids[i].id == ab3100->chip_id) {
-			if (ids[i].name != NULL) {
-				snprintf(&ab3100->chip_name[0],
-					 sizeof(ab3100->chip_name) - 1,
-					 "AB3100 %s",
-					 ids[i].name);
+			if (ids[i].name)
 				break;
-			} else {
-				dev_err(&client->dev,
-					"AB3000 is not supported\n");
-				goto exit_no_detect;
-			}
+
+			dev_err(&client->dev, "AB3000 is not supported\n");
+			goto exit_no_detect;
 		}
 	}
 
+	snprintf(&ab3100->chip_name[0],
+		 sizeof(ab3100->chip_name) - 1, "AB3100 %s", ids[i].name);
+
 	if (ids[i].id == 0x0) {
 		dev_err(&client->dev, "unknown analog baseband chip id: 0x%x\n",
 			ab3100->chip_id);
diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c
index f391c5fee1b0..55b207a4b336 100644
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@ -188,10 +188,9 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
 	int i;
 
 	otp = devm_kzalloc(&pdev->dev, sizeof(struct ab3100_otp), GFP_KERNEL);
-	if (!otp) {
-		dev_err(&pdev->dev, "could not allocate AB3100 OTP device\n");
+	if (!otp)
 		return -ENOMEM;
-	}
+
 	otp->dev = &pdev->dev;
 
 	/* Replace platform data coming in with a local struct */
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index fefbe4cfa61d..f3d689176fc2 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -113,7 +113,7 @@
 #define AB8500_SWITCH_OFF_STATUS	0x00
 
 #define AB8500_TURN_ON_STATUS		0x00
-#define AB8505_TURN_ON_STATUS_2	0x04
+#define AB8505_TURN_ON_STATUS_2		0x04
 
 #define AB8500_CH_USBCH_STAT1_REG	0x02
 #define VBUS_DET_DBNC100		0x02
@@ -211,7 +211,7 @@ static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	/*
 	 * Put the u8 bank and u8 register together into a an u16.
 	 * The bank on higher 8 bits and register in lower 8 bits.
-	 * */
+	 */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
@@ -243,8 +243,6 @@ static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	u8 reg, u8 *value)
 {
 	int ret;
-	/* put the u8 bank and u8 reg together into a an u16.
-	 * bank on higher 8 bits and reg in lower */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	mutex_lock(&ab8500->lock);
@@ -278,8 +276,6 @@ static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 	u8 reg, u8 bitmask, u8 bitvalues)
 {
 	int ret;
-	/* put the u8 bank and u8 reg together into a an u16.
-	 * bank on higher 8 bits and reg in lower */
 	u16 addr = ((u16)bank) << 8 | reg;
 
 	mutex_lock(&ab8500->lock);
@@ -449,12 +445,12 @@ static void update_latch_offset(u8 *offset, int i)
 {
 	/* Fix inconsistent ITFromLatch25 bit mapping... */
 	if (unlikely(*offset == 17))
-			*offset = 24;
+		*offset = 24;
 	/* Fix inconsistent ab8540 bit mapping... */
 	if (unlikely(*offset == 16))
-			*offset = 25;
+		*offset = 25;
 	if ((i == 3) && (*offset >= 24))
-			*offset += 2;
+		*offset += 2;
 }
 
 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
@@ -590,12 +586,12 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
 
 	/* If ->irq_base is zero this will give a linear mapping */
 	ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node,
-			num_irqs, 0,
-			&ab8500_irq_ops, ab8500);
+					       num_irqs, 0,
+					       &ab8500_irq_ops, ab8500);
 
 	if (!ab8500->domain) {
 		dev_err(ab8500->dev, "Failed to create irqdomain\n");
-		return -ENOSYS;
+		return -ENODEV;
 	}
 
 	return 0;
@@ -609,442 +605,28 @@ int ab8500_suspend(struct ab8500 *ab8500)
 	return 0;
 }
 
-static struct resource ab8500_gpadc_resources[] = {
-	{
-		.name	= "HW_CONV_END",
-		.start	= AB8500_INT_GP_HW_ADC_CONV_END,
-		.end	= AB8500_INT_GP_HW_ADC_CONV_END,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "SW_CONV_END",
-		.start	= AB8500_INT_GP_SW_ADC_CONV_END,
-		.end	= AB8500_INT_GP_SW_ADC_CONV_END,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8505_gpadc_resources[] = {
-	{
-		.name	= "SW_CONV_END",
-		.start	= AB8500_INT_GP_SW_ADC_CONV_END,
-		.end	= AB8500_INT_GP_SW_ADC_CONV_END,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_rtc_resources[] = {
-	{
-		.name	= "60S",
-		.start	= AB8500_INT_RTC_60S,
-		.end	= AB8500_INT_RTC_60S,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "ALARM",
-		.start	= AB8500_INT_RTC_ALARM,
-		.end	= AB8500_INT_RTC_ALARM,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8540_rtc_resources[] = {
-	{
-		.name	= "1S",
-		.start	= AB8540_INT_RTC_1S,
-		.end	= AB8540_INT_RTC_1S,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "ALARM",
-		.start	= AB8500_INT_RTC_ALARM,
-		.end	= AB8500_INT_RTC_ALARM,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_poweronkey_db_resources[] = {
-	{
-		.name	= "ONKEY_DBF",
-		.start	= AB8500_INT_PON_KEY1DB_F,
-		.end	= AB8500_INT_PON_KEY1DB_F,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "ONKEY_DBR",
-		.start	= AB8500_INT_PON_KEY1DB_R,
-		.end	= AB8500_INT_PON_KEY1DB_R,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_av_acc_detect_resources[] = {
-	{
-	       .name = "ACC_DETECT_1DB_F",
-	       .start = AB8500_INT_ACC_DETECT_1DB_F,
-	       .end = AB8500_INT_ACC_DETECT_1DB_F,
-	       .flags = IORESOURCE_IRQ,
-	},
-	{
-	       .name = "ACC_DETECT_1DB_R",
-	       .start = AB8500_INT_ACC_DETECT_1DB_R,
-	       .end = AB8500_INT_ACC_DETECT_1DB_R,
-	       .flags = IORESOURCE_IRQ,
-	},
-	{
-	       .name = "ACC_DETECT_21DB_F",
-	       .start = AB8500_INT_ACC_DETECT_21DB_F,
-	       .end = AB8500_INT_ACC_DETECT_21DB_F,
-	       .flags = IORESOURCE_IRQ,
-	},
-	{
-	       .name = "ACC_DETECT_21DB_R",
-	       .start = AB8500_INT_ACC_DETECT_21DB_R,
-	       .end = AB8500_INT_ACC_DETECT_21DB_R,
-	       .flags = IORESOURCE_IRQ,
-	},
-	{
-	       .name = "ACC_DETECT_22DB_F",
-	       .start = AB8500_INT_ACC_DETECT_22DB_F,
-	       .end = AB8500_INT_ACC_DETECT_22DB_F,
-	       .flags = IORESOURCE_IRQ,
-	},
-	{
-	       .name = "ACC_DETECT_22DB_R",
-	       .start = AB8500_INT_ACC_DETECT_22DB_R,
-	       .end = AB8500_INT_ACC_DETECT_22DB_R,
-	       .flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_charger_resources[] = {
-	{
-		.name = "MAIN_CH_UNPLUG_DET",
-		.start = AB8500_INT_MAIN_CH_UNPLUG_DET,
-		.end = AB8500_INT_MAIN_CH_UNPLUG_DET,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "MAIN_CHARGE_PLUG_DET",
-		.start = AB8500_INT_MAIN_CH_PLUG_DET,
-		.end = AB8500_INT_MAIN_CH_PLUG_DET,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_R",
-		.start = AB8500_INT_VBUS_DET_R,
-		.end = AB8500_INT_VBUS_DET_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_F",
-		.start = AB8500_INT_VBUS_DET_F,
-		.end = AB8500_INT_VBUS_DET_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_LINK_STATUS",
-		.start = AB8500_INT_USB_LINK_STATUS,
-		.end = AB8500_INT_USB_LINK_STATUS,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_OVV",
-		.start = AB8500_INT_VBUS_OVV,
-		.end = AB8500_INT_VBUS_OVV,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_CH_TH_PROT_R",
-		.start = AB8500_INT_USB_CH_TH_PROT_R,
-		.end = AB8500_INT_USB_CH_TH_PROT_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_CH_TH_PROT_F",
-		.start = AB8500_INT_USB_CH_TH_PROT_F,
-		.end = AB8500_INT_USB_CH_TH_PROT_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "MAIN_EXT_CH_NOT_OK",
-		.start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
-		.end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "MAIN_CH_TH_PROT_R",
-		.start = AB8500_INT_MAIN_CH_TH_PROT_R,
-		.end = AB8500_INT_MAIN_CH_TH_PROT_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "MAIN_CH_TH_PROT_F",
-		.start = AB8500_INT_MAIN_CH_TH_PROT_F,
-		.end = AB8500_INT_MAIN_CH_TH_PROT_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_CHARGER_NOT_OKR",
-		.start = AB8500_INT_USB_CHARGER_NOT_OKR,
-		.end = AB8500_INT_USB_CHARGER_NOT_OKR,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "CH_WD_EXP",
-		.start = AB8500_INT_CH_WD_EXP,
-		.end = AB8500_INT_CH_WD_EXP,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_CH_DROP_END",
-		.start = AB8500_INT_VBUS_CH_DROP_END,
-		.end = AB8500_INT_VBUS_CH_DROP_END,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_btemp_resources[] = {
-	{
-		.name = "BAT_CTRL_INDB",
-		.start = AB8500_INT_BAT_CTRL_INDB,
-		.end = AB8500_INT_BAT_CTRL_INDB,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "BTEMP_LOW",
-		.start = AB8500_INT_BTEMP_LOW,
-		.end = AB8500_INT_BTEMP_LOW,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "BTEMP_HIGH",
-		.start = AB8500_INT_BTEMP_HIGH,
-		.end = AB8500_INT_BTEMP_HIGH,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "BTEMP_LOW_MEDIUM",
-		.start = AB8500_INT_BTEMP_LOW_MEDIUM,
-		.end = AB8500_INT_BTEMP_LOW_MEDIUM,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "BTEMP_MEDIUM_HIGH",
-		.start = AB8500_INT_BTEMP_MEDIUM_HIGH,
-		.end = AB8500_INT_BTEMP_MEDIUM_HIGH,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_fg_resources[] = {
-	{
-		.name = "NCONV_ACCU",
-		.start = AB8500_INT_CCN_CONV_ACC,
-		.end = AB8500_INT_CCN_CONV_ACC,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "BATT_OVV",
-		.start = AB8500_INT_BATT_OVV,
-		.end = AB8500_INT_BATT_OVV,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "LOW_BAT_F",
-		.start = AB8500_INT_LOW_BAT_F,
-		.end = AB8500_INT_LOW_BAT_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "LOW_BAT_R",
-		.start = AB8500_INT_LOW_BAT_R,
-		.end = AB8500_INT_LOW_BAT_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "CC_INT_CALIB",
-		.start = AB8500_INT_CC_INT_CALIB,
-		.end = AB8500_INT_CC_INT_CALIB,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "CCEOC",
-		.start = AB8500_INT_CCEOC,
-		.end = AB8500_INT_CCEOC,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_chargalg_resources[] = {};
-
-#ifdef CONFIG_DEBUG_FS
-static struct resource ab8500_debug_resources[] = {
-	{
-		.name	= "IRQ_AB8500",
-		/*
-		 * Number will be filled in. NOTE: this is deliberately
-		 * not flagged as an IRQ in ordet to avoid remapping using
-		 * the irqdomain in the MFD core, so that this IRQ passes
-		 * unremapped to the debug code.
-		 */
-	},
-	{
-		.name	= "IRQ_FIRST",
-		.start	= AB8500_INT_MAIN_EXT_CH_NOT_OK,
-		.end	= AB8500_INT_MAIN_EXT_CH_NOT_OK,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "IRQ_LAST",
-		.start	= AB8500_INT_XTAL32K_KO,
-		.end	= AB8500_INT_XTAL32K_KO,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-#endif
-
-static struct resource ab8500_usb_resources[] = {
-	{
-		.name = "ID_WAKEUP_R",
-		.start = AB8500_INT_ID_WAKEUP_R,
-		.end = AB8500_INT_ID_WAKEUP_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "ID_WAKEUP_F",
-		.start = AB8500_INT_ID_WAKEUP_F,
-		.end = AB8500_INT_ID_WAKEUP_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_F",
-		.start = AB8500_INT_VBUS_DET_F,
-		.end = AB8500_INT_VBUS_DET_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_R",
-		.start = AB8500_INT_VBUS_DET_R,
-		.end = AB8500_INT_VBUS_DET_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_LINK_STATUS",
-		.start = AB8500_INT_USB_LINK_STATUS,
-		.end = AB8500_INT_USB_LINK_STATUS,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_ADP_PROBE_PLUG",
-		.start = AB8500_INT_ADP_PROBE_PLUG,
-		.end = AB8500_INT_ADP_PROBE_PLUG,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "USB_ADP_PROBE_UNPLUG",
-		.start = AB8500_INT_ADP_PROBE_UNPLUG,
-		.end = AB8500_INT_ADP_PROBE_UNPLUG,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8505_iddet_resources[] = {
-	{
-		.name  = "KeyDeglitch",
-		.start = AB8505_INT_KEYDEGLITCH,
-		.end   = AB8505_INT_KEYDEGLITCH,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name  = "KP",
-		.start = AB8505_INT_KP,
-		.end   = AB8505_INT_KP,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name  = "IKP",
-		.start = AB8505_INT_IKP,
-		.end   = AB8505_INT_IKP,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name  = "IKR",
-		.start = AB8505_INT_IKR,
-		.end   = AB8505_INT_IKR,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name  = "KeyStuck",
-		.start = AB8505_INT_KEYSTUCK,
-		.end   = AB8505_INT_KEYSTUCK,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_R",
-		.start = AB8500_INT_VBUS_DET_R,
-		.end = AB8500_INT_VBUS_DET_R,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "VBUS_DET_F",
-		.start = AB8500_INT_VBUS_DET_F,
-		.end = AB8500_INT_VBUS_DET_F,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "ID_DET_PLUGR",
-		.start = AB8500_INT_ID_DET_PLUGR,
-		.end = AB8500_INT_ID_DET_PLUGR,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name = "ID_DET_PLUGF",
-		.start = AB8500_INT_ID_DET_PLUGF,
-		.end = AB8500_INT_ID_DET_PLUGF,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct resource ab8500_temp_resources[] = {
-	{
-		.name  = "ABX500_TEMP_WARM",
-		.start = AB8500_INT_TEMP_WARM,
-		.end   = AB8500_INT_TEMP_WARM,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
 static const struct mfd_cell ab8500_bm_devs[] = {
 	{
 		.name = "ab8500-charger",
 		.of_compatible = "stericsson,ab8500-charger",
-		.num_resources = ARRAY_SIZE(ab8500_charger_resources),
-		.resources = ab8500_charger_resources,
 		.platform_data = &ab8500_bm_data,
 		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-btemp",
 		.of_compatible = "stericsson,ab8500-btemp",
-		.num_resources = ARRAY_SIZE(ab8500_btemp_resources),
-		.resources = ab8500_btemp_resources,
 		.platform_data = &ab8500_bm_data,
 		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-fg",
 		.of_compatible = "stericsson,ab8500-fg",
-		.num_resources = ARRAY_SIZE(ab8500_fg_resources),
-		.resources = ab8500_fg_resources,
 		.platform_data = &ab8500_bm_data,
 		.pdata_size = sizeof(ab8500_bm_data),
 	},
 	{
 		.name = "ab8500-chargalg",
 		.of_compatible = "stericsson,ab8500-chargalg",
-		.num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
-		.resources = ab8500_chargalg_resources,
 		.platform_data = &ab8500_bm_data,
 		.pdata_size = sizeof(ab8500_bm_data),
 	},
@@ -1055,8 +637,6 @@ static const struct mfd_cell ab8500_devs[] = {
 	{
 		.name = "ab8500-debug",
 		.of_compatible = "stericsson,ab8500-debug",
-		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
-		.resources = ab8500_debug_resources,
 	},
 #endif
 	{
@@ -1078,27 +658,19 @@ static const struct mfd_cell ab8500_devs[] = {
 	{
 		.name = "ab8500-gpadc",
 		.of_compatible = "stericsson,ab8500-gpadc",
-		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
-		.resources = ab8500_gpadc_resources,
 	},
 	{
 		.name = "ab8500-rtc",
 		.of_compatible = "stericsson,ab8500-rtc",
-		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
-		.resources = ab8500_rtc_resources,
 	},
 	{
 		.name = "ab8500-acc-det",
 		.of_compatible = "stericsson,ab8500-acc-det",
-		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
-		.resources = ab8500_av_acc_detect_resources,
 	},
 	{
 
 		.name = "ab8500-poweron-key",
 		.of_compatible = "stericsson,ab8500-poweron-key",
-		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
-		.resources = ab8500_poweronkey_db_resources,
 	},
 	{
 		.name = "ab8500-pwm",
@@ -1126,14 +698,10 @@ static const struct mfd_cell ab8500_devs[] = {
 	{
 		.name = "abx500-temp",
 		.of_compatible = "stericsson,abx500-temp",
-		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
-		.resources = ab8500_temp_resources,
 	},
 	{
 		.name = "ab8500-usb",
 		.of_compatible = "stericsson,ab8500-usb",
-		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
-		.resources = ab8500_usb_resources,
 	},
 	{
 		.name = "ab8500-codec",
@@ -1145,8 +713,6 @@ static const struct mfd_cell ab9540_devs[] = {
 #ifdef CONFIG_DEBUG_FS
 	{
 		.name = "ab8500-debug",
-		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
-		.resources = ab8500_debug_resources,
 	},
 #endif
 	{
@@ -1165,23 +731,15 @@ static const struct mfd_cell ab9540_devs[] = {
 	{
 		.name = "ab8500-gpadc",
 		.of_compatible = "stericsson,ab8500-gpadc",
-		.num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
-		.resources = ab8500_gpadc_resources,
 	},
 	{
 		.name = "ab8500-rtc",
-		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
-		.resources = ab8500_rtc_resources,
 	},
 	{
 		.name = "ab8500-acc-det",
-		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
-		.resources = ab8500_av_acc_detect_resources,
 	},
 	{
 		.name = "ab8500-poweron-key",
-		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
-		.resources = ab8500_poweronkey_db_resources,
 	},
 	{
 		.name = "ab8500-pwm",
@@ -1189,8 +747,6 @@ static const struct mfd_cell ab9540_devs[] = {
 	},
 	{
 		.name = "abx500-temp",
-		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
-		.resources = ab8500_temp_resources,
 	},
 	{
 		.name = "pinctrl-ab9540",
@@ -1198,16 +754,12 @@ static const struct mfd_cell ab9540_devs[] = {
 	},
 	{
 		.name = "ab9540-usb",
-		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
-		.resources = ab8500_usb_resources,
 	},
 	{
 		.name = "ab9540-codec",
 	},
 	{
 		.name = "ab-iddet",
-		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
-		.resources = ab8505_iddet_resources,
 	},
 };
 
@@ -1216,8 +768,6 @@ static const struct mfd_cell ab8505_devs[] = {
 #ifdef CONFIG_DEBUG_FS
 	{
 		.name = "ab8500-debug",
-		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
-		.resources = ab8500_debug_resources,
 	},
 #endif
 	{
@@ -1233,23 +783,15 @@ static const struct mfd_cell ab8505_devs[] = {
 	{
 		.name = "ab8500-gpadc",
 		.of_compatible = "stericsson,ab8500-gpadc",
-		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
-		.resources = ab8505_gpadc_resources,
 	},
 	{
 		.name = "ab8500-rtc",
-		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
-		.resources = ab8500_rtc_resources,
 	},
 	{
 		.name = "ab8500-acc-det",
-		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
-		.resources = ab8500_av_acc_detect_resources,
 	},
 	{
 		.name = "ab8500-poweron-key",
-		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
-		.resources = ab8500_poweronkey_db_resources,
 	},
 	{
 		.name = "ab8500-pwm",
@@ -1260,16 +802,12 @@ static const struct mfd_cell ab8505_devs[] = {
 	},
 	{
 		.name = "ab8500-usb",
-		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
-		.resources = ab8500_usb_resources,
 	},
 	{
 		.name = "ab8500-codec",
 	},
 	{
 		.name = "ab-iddet",
-		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
-		.resources = ab8505_iddet_resources,
 	},
 };
 
@@ -1277,8 +815,6 @@ static const struct mfd_cell ab8540_devs[] = {
 #ifdef CONFIG_DEBUG_FS
 	{
 		.name = "ab8500-debug",
-		.num_resources = ARRAY_SIZE(ab8500_debug_resources),
-		.resources = ab8500_debug_resources,
 	},
 #endif
 	{
@@ -1297,18 +833,12 @@ static const struct mfd_cell ab8540_devs[] = {
 	{
 		.name = "ab8500-gpadc",
 		.of_compatible = "stericsson,ab8500-gpadc",
-		.num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
-		.resources = ab8505_gpadc_resources,
 	},
 	{
 		.name = "ab8500-acc-det",
-		.num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
-		.resources = ab8500_av_acc_detect_resources,
 	},
 	{
 		.name = "ab8500-poweron-key",
-		.num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
-		.resources = ab8500_poweronkey_db_resources,
 	},
 	{
 		.name = "ab8500-pwm",
@@ -1316,24 +846,18 @@ static const struct mfd_cell ab8540_devs[] = {
 	},
 	{
 		.name = "abx500-temp",
-		.num_resources = ARRAY_SIZE(ab8500_temp_resources),
-		.resources = ab8500_temp_resources,
 	},
 	{
 		.name = "pinctrl-ab8540",
 	},
 	{
 		.name = "ab8540-usb",
-		.num_resources = ARRAY_SIZE(ab8500_usb_resources),
-		.resources = ab8500_usb_resources,
 	},
 	{
 		.name = "ab8540-codec",
 	},
 	{
 		.name = "ab-iddet",
-		.num_resources = ARRAY_SIZE(ab8505_iddet_resources),
-		.resources = ab8505_iddet_resources,
 	},
 };
 
@@ -1341,8 +865,6 @@ static const struct mfd_cell ab8540_cut1_devs[] = {
 	{
 		.name = "ab8500-rtc",
 		.of_compatible = "stericsson,ab8500-rtc",
-		.num_resources = ARRAY_SIZE(ab8500_rtc_resources),
-		.resources = ab8500_rtc_resources,
 	},
 };
 
@@ -1350,8 +872,6 @@ static const struct mfd_cell ab8540_cut2_devs[] = {
 	{
 		.name = "ab8540-rtc",
 		.of_compatible = "stericsson,ab8540-rtc",
-		.num_resources = ARRAY_SIZE(ab8540_rtc_resources),
-		.resources = ab8540_rtc_resources,
 	},
 };
 
@@ -1549,7 +1069,7 @@ static struct attribute_group ab9540_attr_group = {
 
 static int ab8500_probe(struct platform_device *pdev)
 {
-	static const char *switch_off_status[] = {
+	static const char * const switch_off_status[] = {
 		"Swoff bit programming",
 		"Thermal protection activation",
 		"Vbat lower then BattOk falling threshold",
@@ -1558,7 +1078,7 @@ static int ab8500_probe(struct platform_device *pdev)
 		"Battery level lower than power on reset threshold",
 		"Power on key 1 pressed longer than 10 seconds",
 		"DB8500 thermal shutdown"};
-	static const char *turn_on_status[] = {
+	static const char * const turn_on_status[] = {
 		"Battery rising (Vbat)",
 		"Power On Key 1 dbF",
 		"Power On Key 2 dbF",
@@ -1750,12 +1270,6 @@ static int ab8500_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-#ifdef CONFIG_DEBUG_FS
-	/* Pass to debugfs */
-	ab8500_debug_resources[0].start = ab8500->irq;
-	ab8500_debug_resources[0].end = ab8500->irq;
-#endif
-
 	if (is_ab9540(ab8500))
 		ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
 				ARRAY_SIZE(ab9540_devs), NULL,
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 0236cd7cdce4..69d9fffe5b5c 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -242,8 +242,10 @@ static struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = {
 				.first = 0x40,
 				.last = 0x44,
 			},
-			/* 0x80-0x8B is SIM registers and should
-			 * not be accessed from here */
+			/*
+			 * 0x80-0x8B are SIM registers and should
+			 * not be accessed from here
+			 */
 		},
 	},
 	[AB8500_USB] = {
@@ -587,8 +589,10 @@ static struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = {
 				.first = 0x40,
 				.last = 0x48,
 			},
-			/* 0x80-0x8B is SIM registers and should
-			 * not be accessed from here */
+			/*
+			 * 0x80-0x8B are SIM registers and should
+			 * not be accessed from here
+			 */
 		},
 	},
 	[AB8500_USB] = {
@@ -1306,8 +1310,10 @@ static int ab8500_registers_print(struct device *dev, u32 bank,
 			if (s) {
 				seq_printf(s, "  [0x%02X/0x%02X]: 0x%02X\n",
 					   bank, reg, value);
-				/* Error is not returned here since
-				 * the output is wanted in any case */
+				/*
+				 * Error is not returned here since
+				 * the output is wanted in any case
+				 */
 				if (seq_has_overflowed(s))
 					return 0;
 			} else {
@@ -2740,10 +2746,9 @@ static ssize_t hwreg_common_write(char *b, struct hwreg_cfg *cfg,
 	*cfg = loc;
 
 #ifdef ABB_HWREG_DEBUG
-	pr_warn("HWREG request: %s, %s,\n"
-		"  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
-		(write) ? "write" : "read",
-		REG_FMT_DEC(cfg) ? "decimal" : "hexa",
+	pr_warn("HWREG request: %s, %s,\n", (write) ? "write" : "read",
+		REG_FMT_DEC(cfg) ? "decimal" : "hexa");
+	pr_warn("  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
 		cfg->addr, cfg->mask, cfg->shift, val);
 #endif
 
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index c51c1b188d64..97dcadc8fa8b 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -49,61 +49,61 @@
  * OTP register offsets
  * Bank : 0x15
  */
-#define AB8500_GPADC_CAL_1		0x0F
-#define AB8500_GPADC_CAL_2		0x10
-#define AB8500_GPADC_CAL_3		0x11
-#define AB8500_GPADC_CAL_4		0x12
-#define AB8500_GPADC_CAL_5		0x13
-#define AB8500_GPADC_CAL_6		0x14
-#define AB8500_GPADC_CAL_7		0x15
+#define AB8500_GPADC_CAL_1	0x0F
+#define AB8500_GPADC_CAL_2	0x10
+#define AB8500_GPADC_CAL_3	0x11
+#define AB8500_GPADC_CAL_4	0x12
+#define AB8500_GPADC_CAL_5	0x13
+#define AB8500_GPADC_CAL_6	0x14
+#define AB8500_GPADC_CAL_7	0x15
 /* New calibration for 8540 */
 #define AB8540_GPADC_OTP4_REG_7	0x38
 #define AB8540_GPADC_OTP4_REG_6	0x39
 #define AB8540_GPADC_OTP4_REG_5	0x3A
 
 /* gpadc constants */
-#define EN_VINTCORE12			0x04
-#define EN_VTVOUT			0x02
-#define EN_GPADC			0x01
-#define DIS_GPADC			0x00
-#define AVG_1				0x00
-#define AVG_4				0x20
-#define AVG_8				0x40
-#define AVG_16				0x60
-#define ADC_SW_CONV			0x04
-#define EN_ICHAR			0x80
-#define BTEMP_PULL_UP			0x08
-#define EN_BUF				0x40
-#define DIS_ZERO			0x00
-#define GPADC_BUSY			0x01
-#define EN_FALLING			0x10
-#define EN_TRIG_EDGE			0x02
-#define EN_VBIAS_XTAL_TEMP		0x02
+#define EN_VINTCORE12		0x04
+#define EN_VTVOUT		0x02
+#define EN_GPADC		0x01
+#define DIS_GPADC		0x00
+#define AVG_1			0x00
+#define AVG_4			0x20
+#define AVG_8			0x40
+#define AVG_16			0x60
+#define ADC_SW_CONV		0x04
+#define EN_ICHAR		0x80
+#define BTEMP_PULL_UP		0x08
+#define EN_BUF			0x40
+#define DIS_ZERO		0x00
+#define GPADC_BUSY		0x01
+#define EN_FALLING		0x10
+#define EN_TRIG_EDGE		0x02
+#define EN_VBIAS_XTAL_TEMP	0x02
 
 /* GPADC constants from AB8500 spec, UM0836 */
-#define ADC_RESOLUTION			1024
-#define ADC_CH_BTEMP_MIN		0
-#define ADC_CH_BTEMP_MAX		1350
-#define ADC_CH_DIETEMP_MIN		0
-#define ADC_CH_DIETEMP_MAX		1350
-#define ADC_CH_CHG_V_MIN		0
-#define ADC_CH_CHG_V_MAX		20030
-#define ADC_CH_ACCDET2_MIN		0
-#define ADC_CH_ACCDET2_MAX		2500
-#define ADC_CH_VBAT_MIN			2300
-#define ADC_CH_VBAT_MAX			4800
-#define ADC_CH_CHG_I_MIN		0
-#define ADC_CH_CHG_I_MAX		1500
-#define ADC_CH_BKBAT_MIN		0
-#define ADC_CH_BKBAT_MAX		3200
+#define ADC_RESOLUTION		1024
+#define ADC_CH_BTEMP_MIN	0
+#define ADC_CH_BTEMP_MAX	1350
+#define ADC_CH_DIETEMP_MIN	0
+#define ADC_CH_DIETEMP_MAX	1350
+#define ADC_CH_CHG_V_MIN	0
+#define ADC_CH_CHG_V_MAX	20030
+#define ADC_CH_ACCDET2_MIN	0
+#define ADC_CH_ACCDET2_MAX	2500
+#define ADC_CH_VBAT_MIN		2300
+#define ADC_CH_VBAT_MAX		4800
+#define ADC_CH_CHG_I_MIN	0
+#define ADC_CH_CHG_I_MAX	1500
+#define ADC_CH_BKBAT_MIN	0
+#define ADC_CH_BKBAT_MAX	3200
 
 /* GPADC constants from AB8540 spec */
-#define ADC_CH_IBAT_MIN			(-6000) /* mA range measured by ADC for ibat*/
-#define ADC_CH_IBAT_MAX			6000
-#define ADC_CH_IBAT_MIN_V		(-60)	/* mV range measured by ADC for ibat*/
-#define ADC_CH_IBAT_MAX_V		60
-#define IBAT_VDROP_L			(-56)  /* mV */
-#define IBAT_VDROP_H			56
+#define ADC_CH_IBAT_MIN		(-6000) /* mA range measured by ADC for ibat */
+#define ADC_CH_IBAT_MAX		6000
+#define ADC_CH_IBAT_MIN_V	(-60)	/* mV range measured by ADC for ibat */
+#define ADC_CH_IBAT_MAX_V	60
+#define IBAT_VDROP_L		(-56)  /* mV */
+#define IBAT_VDROP_H		56
 
 /* This is used to not lose precision when dividing to get gain and offset */
 #define CALIB_SCALE		1000
@@ -179,7 +179,7 @@ struct ab8500_gpadc *ab8500_gpadc_get(char *name)
 
 	list_for_each_entry(gpadc, &ab8500_gpadc_list, node) {
 		if (!strcmp(name, dev_name(gpadc->dev)))
-		    return gpadc;
+			return gpadc;
 	}
 
 	return ERR_PTR(-ENOENT);
@@ -315,11 +315,12 @@ int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
 
 	ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample,
 			trig_edge, trig_timer, conv_type);
-/* On failure retry a second time */
+
+	/* On failure retry a second time */
 	if (ad_value < 0)
 		ad_value = ab8500_gpadc_read_raw(gpadc, channel, avg_sample,
 			trig_edge, trig_timer, conv_type);
-if (ad_value < 0) {
+	if (ad_value < 0) {
 		dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n",
 				channel);
 		return ad_value;
@@ -327,8 +328,9 @@ if (ad_value < 0) {
 
 	voltage = ab8500_gpadc_ad_to_voltage(gpadc, channel, ad_value);
 	if (voltage < 0)
-		dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:"
-			" %d AD: 0x%x\n", channel, ad_value);
+		dev_err(gpadc->dev,
+			"GPADC to voltage conversion failed ch: %d AD: 0x%x\n",
+			channel, ad_value);
 
 	return voltage;
 }
@@ -348,10 +350,9 @@ EXPORT_SYMBOL(ab8500_gpadc_sw_hw_convert);
 int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type)
 {
-	int raw_data;
-	raw_data = ab8500_gpadc_double_read_raw(gpadc, channel,
-			avg_sample, trig_edge, trig_timer, conv_type, NULL);
-	return raw_data;
+	return ab8500_gpadc_double_read_raw(gpadc, channel, avg_sample,
+					    trig_edge, trig_timer, conv_type,
+					    NULL);
 }
 
 int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
@@ -388,7 +389,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 			goto out;
 		if (!(val & GPADC_BUSY))
 			break;
-		msleep(10);
+		msleep(20);
 	} while (++looplimit < 10);
 	if (looplimit >= 10 && (val & GPADC_BUSY)) {
 		dev_err(gpadc->dev, "gpadc_conversion: GPADC busy");
@@ -421,8 +422,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 		val_reg1 |= EN_TRIG_EDGE;
 		if (trig_edge)
 			val_reg1 |= EN_FALLING;
-	}
-	else
+	} else
 		ret = abx500_set_register_interruptible(gpadc->dev,
 				AB8500_GPADC, AB8500_GPADC_CTRL2_REG, val);
 	if (ret < 0) {
@@ -449,7 +449,7 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
 			* remove when hardware will be availible
 			*/
 			delay_min = 1000; /* Delay in micro seconds */
-			delay_max = 10000; /* large range to optimise sleep mode */
+			delay_max = 10000; /* large range optimises sleepmode */
 			break;
 		}
 		/* Intentional fallthrough */
@@ -785,9 +785,10 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc)
 				<< CALIB_SHIFT_IBAT)
 				/ (ADC_CH_IBAT_MAX_V - ADC_CH_IBAT_MIN_V);
 
-			gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain;
-			gpadc->cal_data[ADC_INPUT_IBAT].offset = V_offset *
-				V2A_gain + V2A_offset;
+			gpadc->cal_data[ADC_INPUT_IBAT].gain =
+				V_gain * V2A_gain;
+			gpadc->cal_data[ADC_INPUT_IBAT].offset =
+				V_offset * V2A_gain + V2A_offset;
 		} else {
 			gpadc->cal_data[ADC_INPUT_IBAT].gain = 0;
 		}
@@ -923,11 +924,10 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
 	int ret = 0;
 	struct ab8500_gpadc *gpadc;
 
-	gpadc = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_gpadc), GFP_KERNEL);
-	if (!gpadc) {
-		dev_err(&pdev->dev, "Error: No memory\n");
+	gpadc = devm_kzalloc(&pdev->dev,
+			     sizeof(struct ab8500_gpadc), GFP_KERNEL);
+	if (!gpadc)
 		return -ENOMEM;
-	}
 
 	gpadc->irq_sw = platform_get_irq_byname(pdev, "SW_CONV_END");
 	if (gpadc->irq_sw < 0)
@@ -1072,18 +1072,19 @@ void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
 	*vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi;
 	*btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo;
 	*btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi;
-	*vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo;
-	*vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi;
-	*ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo;
-	*ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi;
-	return ;
+	*vbat_l  = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo;
+	*vbat_h  = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi;
+	*ibat_l  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo;
+	*ibat_h  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi;
 }
 
 subsys_initcall_sync(ab8500_gpadc_init);
 module_exit(ab8500_gpadc_exit);
 
 MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson,"
-		"M'boumba Cedric Madianga");
+MODULE_AUTHOR("Arun R Murthy");
+MODULE_AUTHOR("Daniel Willerud");
+MODULE_AUTHOR("Johan Palsson");
+MODULE_AUTHOR("M'boumba Cedric Madianga");
 MODULE_ALIAS("platform:ab8500_gpadc");
 MODULE_DESCRIPTION("AB8500 GPADC driver");
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 0d1825696153..b9f0010309f9 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -27,7 +27,7 @@ static void ab8500_power_off(void)
 {
 	sigset_t old;
 	sigset_t all;
-	static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};
+	static const char * const pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};
 	int i;
 	bool charger_present = false;
 	union power_supply_propval val;
@@ -68,10 +68,9 @@ static void ab8500_power_off(void)
 		ret = power_supply_get_property(psy,
 				POWER_SUPPLY_PROP_TECHNOLOGY, &val);
 		if (!ret && val.intval != POWER_SUPPLY_TECHNOLOGY_UNKNOWN) {
-			printk(KERN_INFO
-			       "Charger \"%s\" is connected with known battery."
-			       " Rebooting.\n",
-			       pss[i]);
+			pr_info("Charger '%s' is connected with known battery",
+				pss[i]);
+			pr_info(" - Rebooting.\n");
 			machine_restart("charging");
 		}
 		power_supply_put(psy);
@@ -161,8 +160,8 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 					pdata->initial_req_buf_config[j]);
 			if (ret < 0) {
 				dev_err(&pdev->dev,
-					"unable to set sysClkReq%dRfClkBuf: "
-					"%d\n", j + 1, ret);
+					"Can't set sysClkReq%dRfClkBuf: %d\n",
+					j + 1, ret);
 			}
 		}
 	}
diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c
index ae88654595dc..d817f202da5b 100644
--- a/drivers/mfd/adp5520.c
+++ b/drivers/mfd/adp5520.c
@@ -9,10 +9,10 @@
  *
  * Derived from da903x:
  * Copyright (C) 2008 Compulab, Ltd.
- * 	Mike Rapoport <mike@compulab.co.il>
+ *	Mike Rapoport <mike@compulab.co.il>
  *
  * Copyright (C) 2006-2008 Marvell International Ltd.
- * 	Eric Miao <eric.miao@marvell.com>
+ *	Eric Miao <eric.miao@marvell.com>
  *
  * Licensed under the GPL-2 or later.
  */
@@ -355,7 +355,7 @@ static struct i2c_driver adp5520_driver = {
 	},
 	.probe		= adp5520_probe,
 	.remove		= adp5520_remove,
-	.id_table 	= adp5520_id,
+	.id_table	= adp5520_id,
 };
 
 module_i2c_driver(adp5520_driver);
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index d474732cc65c..5319f252790b 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -238,7 +238,7 @@ static int arizona_poll_reg(struct arizona *arizona,
 		if ((val & mask) == target)
 			return 0;
 
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 
 	dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
@@ -279,14 +279,14 @@ static void arizona_disable_reset(struct arizona *arizona)
 		case WM5110:
 		case WM8280:
 			/* Meet requirements for minimum reset duration */
-			msleep(5);
+			usleep_range(5000, 10000);
 			break;
 		default:
 			break;
 		}
 
 		gpio_set_value_cansleep(arizona->pdata.reset, 1);
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 }
 
@@ -598,6 +598,12 @@ static int arizona_runtime_resume(struct device *dev)
 			goto err;
 		}
 		break;
+	case WM1831:
+	case CS47L24:
+		ret = arizona_wait_for_boot(arizona);
+		if (ret != 0)
+			goto err;
+		break;
 	default:
 		ret = arizona_wait_for_boot(arizona);
 		if (ret != 0)
@@ -682,6 +688,9 @@ static int arizona_runtime_suspend(struct device *dev)
 			}
 		}
 		break;
+	case WM1831:
+	case CS47L24:
+		break;
 	default:
 		jd_active = arizona_is_jack_det_active(arizona);
 		if (jd_active < 0)
@@ -852,6 +861,16 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
 		count++;
 	}
 
+	count = 0;
+	of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
+				 cur, val) {
+		if (count == ARRAY_SIZE(pdata->out_mono))
+			break;
+
+		pdata->out_mono[count] = !!val;
+		count++;
+	}
+
 	return 0;
 }
 
@@ -862,6 +881,8 @@ const struct of_device_id arizona_of_match[] = {
 	{ .compatible = "wlf,wm8997", .data = (void *)WM8997 },
 	{ .compatible = "wlf,wm8998", .data = (void *)WM8998 },
 	{ .compatible = "wlf,wm1814", .data = (void *)WM1814 },
+	{ .compatible = "wlf,wm1831", .data = (void *)WM1831 },
+	{ .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
 	{},
 };
 EXPORT_SYMBOL_GPL(arizona_of_match);
@@ -919,6 +940,23 @@ static const struct mfd_cell wm5110_devs[] = {
 	},
 };
 
+static const char * const cs47l24_supplies[] = {
+	"MICVDD",
+	"CPVDD",
+	"SPKVDD",
+};
+
+static const struct mfd_cell cs47l24_devs[] = {
+	{ .name = "arizona-gpio" },
+	{ .name = "arizona-haptics" },
+	{ .name = "arizona-pwm" },
+	{
+		.name = "cs47l24-codec",
+		.parent_supplies = cs47l24_supplies,
+		.num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
+	},
+};
+
 static const char * const wm8997_supplies[] = {
 	"MICVDD",
 	"DBVDD2",
@@ -963,7 +1001,7 @@ static const struct mfd_cell wm8998_devs[] = {
 int arizona_dev_init(struct arizona *arizona)
 {
 	struct device *dev = arizona->dev;
-	const char *type_name;
+	const char *type_name = NULL;
 	unsigned int reg, val, mask;
 	int (*apply_patch)(struct arizona *) = NULL;
 	const struct mfd_cell *subdevs = NULL;
@@ -987,6 +1025,8 @@ int arizona_dev_init(struct arizona *arizona)
 	case WM8997:
 	case WM8998:
 	case WM1814:
+	case WM1831:
+	case CS47L24:
 		for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
 			arizona->core_supplies[i].supply
 				= wm5102_core_supplies[i];
@@ -1001,11 +1041,18 @@ int arizona_dev_init(struct arizona *arizona)
 	/* Mark DCVDD as external, LDO1 driver will clear if internal */
 	arizona->external_dcvdd = true;
 
-	ret = mfd_add_devices(arizona->dev, -1, early_devs,
-			      ARRAY_SIZE(early_devs), NULL, 0, NULL);
-	if (ret != 0) {
-		dev_err(dev, "Failed to add early children: %d\n", ret);
-		return ret;
+	switch (arizona->type) {
+	case WM1831:
+	case CS47L24:
+		break; /* No LDO1 regulator */
+	default:
+		ret = mfd_add_devices(arizona->dev, -1, early_devs,
+				      ARRAY_SIZE(early_devs), NULL, 0, NULL);
+		if (ret != 0) {
+			dev_err(dev, "Failed to add early children: %d\n", ret);
+			return ret;
+		}
+		break;
 	}
 
 	ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
@@ -1069,6 +1116,7 @@ int arizona_dev_init(struct arizona *arizona)
 	case 0x5102:
 	case 0x5110:
 	case 0x6349:
+	case 0x6363:
 	case 0x8997:
 		break;
 	default:
@@ -1084,7 +1132,7 @@ int arizona_dev_init(struct arizona *arizona)
 			goto err_reset;
 		}
 
-		msleep(1);
+		usleep_range(1000, 5000);
 	}
 
 	/* Ensure device startup is complete */
@@ -1167,6 +1215,30 @@ int arizona_dev_init(struct arizona *arizona)
 			n_subdevs = ARRAY_SIZE(wm5110_devs);
 		}
 		break;
+	case 0x6363:
+		if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
+			switch (arizona->type) {
+			case CS47L24:
+				type_name = "CS47L24";
+				break;
+
+			case WM1831:
+				type_name = "WM1831";
+				break;
+
+			default:
+				dev_warn(arizona->dev,
+					 "CS47L24 registered as %d\n",
+					 arizona->type);
+				arizona->type = CS47L24;
+				break;
+			}
+
+			apply_patch = cs47l24_patch;
+			subdevs = cs47l24_devs;
+			n_subdevs = ARRAY_SIZE(cs47l24_devs);
+		}
+		break;
 	case 0x8997:
 		if (IS_ENABLED(CONFIG_MFD_WM8997)) {
 			type_name = "WM8997";
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 4e3afd1861fc..5fe12961cfe5 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -88,7 +88,9 @@ static int arizona_i2c_probe(struct i2c_client *i2c,
 static int arizona_i2c_remove(struct i2c_client *i2c)
 {
 	struct arizona *arizona = dev_get_drvdata(&i2c->dev);
+
 	arizona_dev_exit(arizona);
+
 	return 0;
 }
 
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 3d425e93ce84..5fef014920a3 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -30,11 +30,13 @@ static int arizona_map_irq(struct arizona *arizona, int irq)
 {
 	int ret;
 
-	ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
-	if (ret < 0)
-		ret = regmap_irq_get_virq(arizona->irq_chip, irq);
+	if (arizona->aod_irq_chip) {
+		ret = regmap_irq_get_virq(arizona->aod_irq_chip, irq);
+		if (ret >= 0)
+			return ret;
+	}
 
-	return ret;
+	return regmap_irq_get_virq(arizona->irq_chip, irq);
 }
 
 int arizona_request_irq(struct arizona *arizona, int irq, char *name,
@@ -107,8 +109,8 @@ static irqreturn_t arizona_irq_thread(int irq, void *data)
 	do {
 		poll = false;
 
-		/* Always handle the AoD domain */
-		handle_nested_irq(irq_find_mapping(arizona->virq, 0));
+		if (arizona->aod_irq_chip)
+			handle_nested_irq(irq_find_mapping(arizona->virq, 0));
 
 		/*
 		 * Check if one of the main interrupts is asserted and only
@@ -219,6 +221,15 @@ int arizona_irq_init(struct arizona *arizona)
 		arizona->ctrlif_error = false;
 		break;
 #endif
+#ifdef CONFIG_MFD_CS47L24
+	case WM1831:
+	case CS47L24:
+		aod = NULL;
+		irq = &cs47l24_irq;
+
+		arizona->ctrlif_error = false;
+		break;
+#endif
 #ifdef CONFIG_MFD_WM8997
 	case WM8997:
 		aod = &wm8997_aod;
@@ -291,13 +302,16 @@ int arizona_irq_init(struct arizona *arizona)
 		goto err;
 	}
 
-	ret = regmap_add_irq_chip(arizona->regmap,
-				  irq_create_mapping(arizona->virq, 0),
-				  IRQF_ONESHOT, 0, aod,
-				  &arizona->aod_irq_chip);
-	if (ret != 0) {
-		dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret);
-		goto err_domain;
+	if (aod) {
+		ret = regmap_add_irq_chip(arizona->regmap,
+					  irq_create_mapping(arizona->virq, 0),
+					  IRQF_ONESHOT, 0, aod,
+					  &arizona->aod_irq_chip);
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to add AOD IRQs: %d\n", ret);
+			goto err;
+		}
 	}
 
 	ret = regmap_add_irq_chip(arizona->regmap,
@@ -309,30 +323,6 @@ int arizona_irq_init(struct arizona *arizona)
 		goto err_aod;
 	}
 
-	/* Make sure the boot done IRQ is unmasked for resumes */
-	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
-	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
-				   "Boot done", arizona);
-	if (ret != 0) {
-		dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
-			arizona->irq, ret);
-		goto err_boot_done;
-	}
-
-	/* Handle control interface errors in the core */
-	if (arizona->ctrlif_error) {
-		i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
-		ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
-					   IRQF_ONESHOT,
-					   "Control interface error", arizona);
-		if (ret != 0) {
-			dev_err(arizona->dev,
-				"Failed to request CTRLIF_ERR %d: %d\n",
-				arizona->irq, ret);
-			goto err_ctrlif;
-		}
-	}
-
 	/* Used to emulate edge trigger and to work around broken pinmux */
 	if (arizona->pdata.irq_gpio) {
 		if (gpio_to_irq(arizona->pdata.irq_gpio) != arizona->irq) {
@@ -362,21 +352,42 @@ int arizona_irq_init(struct arizona *arizona)
 		goto err_main_irq;
 	}
 
+	/* Make sure the boot done IRQ is unmasked for resumes */
+	i = arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE);
+	ret = request_threaded_irq(i, NULL, arizona_boot_done, IRQF_ONESHOT,
+				   "Boot done", arizona);
+	if (ret != 0) {
+		dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
+			arizona->irq, ret);
+		goto err_boot_done;
+	}
+
+	/* Handle control interface errors in the core */
+	if (arizona->ctrlif_error) {
+		i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
+		ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
+					   IRQF_ONESHOT,
+					   "Control interface error", arizona);
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to request CTRLIF_ERR %d: %d\n",
+				arizona->irq, ret);
+			goto err_ctrlif;
+		}
+	}
+
 	return 0;
 
-err_main_irq:
-	if (arizona->ctrlif_error)
-		free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR),
-			 arizona);
 err_ctrlif:
 	free_irq(arizona_map_irq(arizona, ARIZONA_IRQ_BOOT_DONE), arizona);
 err_boot_done:
+	free_irq(arizona->irq, arizona);
+err_main_irq:
 	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 1),
 			    arizona->irq_chip);
 err_aod:
 	regmap_del_irq_chip(irq_create_mapping(arizona->virq, 0),
 			    arizona->aod_irq_chip);
-err_domain:
 err:
 	return ret;
 }
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index befbc89bfd34..5c1ccdeb9b70 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -46,6 +46,11 @@ static int arizona_spi_probe(struct spi_device *spi)
 		if (IS_ENABLED(CONFIG_MFD_WM5110))
 			regmap_config = &wm5110_spi_regmap;
 		break;
+	case WM1831:
+	case CS47L24:
+		if (IS_ENABLED(CONFIG_MFD_CS47L24))
+			regmap_config = &cs47l24_spi_regmap;
+		break;
 	default:
 		dev_err(&spi->dev, "Unknown device type %ld\n", type);
 		return -EINVAL;
@@ -89,6 +94,8 @@ static const struct spi_device_id arizona_spi_ids[] = {
 	{ "wm5102", WM5102 },
 	{ "wm5110", WM5110 },
 	{ "wm8280", WM8280 },
+	{ "wm1831", WM1831 },
+	{ "cs47l24", CS47L24 },
 	{ },
 };
 MODULE_DEVICE_TABLE(spi, arizona_spi_ids);
diff --git a/drivers/mfd/arizona.h b/drivers/mfd/arizona.h
index 3af12e938f57..198e9cea77f9 100644
--- a/drivers/mfd/arizona.h
+++ b/drivers/mfd/arizona.h
@@ -25,6 +25,8 @@ extern const struct regmap_config wm5102_spi_regmap;
 extern const struct regmap_config wm5110_i2c_regmap;
 extern const struct regmap_config wm5110_spi_regmap;
 
+extern const struct regmap_config cs47l24_spi_regmap;
+
 extern const struct regmap_config wm8997_i2c_regmap;
 
 extern const struct regmap_config wm8998_i2c_regmap;
@@ -40,6 +42,8 @@ extern const struct regmap_irq_chip wm5110_aod;
 extern const struct regmap_irq_chip wm5110_irq;
 extern const struct regmap_irq_chip wm5110_revd_irq;
 
+extern const struct regmap_irq_chip cs47l24_irq;
+
 extern const struct regmap_irq_chip wm8997_aod;
 extern const struct regmap_irq_chip wm8997_irq;
 
diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index d001f7e238f5..94d67a6e1eb7 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -136,17 +136,13 @@ static int as3711_i2c_probe(struct i2c_client *client,
 	} else {
 		pdata = devm_kzalloc(&client->dev,
 				     sizeof(*pdata), GFP_KERNEL);
-		if (!pdata) {
-			dev_err(&client->dev, "Failed to allocate pdata\n");
+		if (!pdata)
 			return -ENOMEM;
-		}
 	}
 
 	as3711 = devm_kzalloc(&client->dev, sizeof(struct as3711), GFP_KERNEL);
-	if (!as3711) {
-		dev_err(&client->dev, "Memory allocation failed\n");
+	if (!as3711)
 		return -ENOMEM;
-	}
 
 	as3711->dev = &client->dev;
 	i2c_set_clientdata(client, as3711);
@@ -157,7 +153,8 @@ static int as3711_i2c_probe(struct i2c_client *client,
 	as3711->regmap = devm_regmap_init_i2c(client, &as3711_regmap_config);
 	if (IS_ERR(as3711->regmap)) {
 		ret = PTR_ERR(as3711->regmap);
-		dev_err(&client->dev, "regmap initialization failed: %d\n", ret);
+		dev_err(&client->dev,
+			"regmap initialization failed: %d\n", ret);
 		return ret;
 	}
 
@@ -172,12 +169,19 @@ static int as3711_i2c_probe(struct i2c_client *client,
 		return -ENODEV;
 	dev_info(as3711->dev, "AS3711 detected: %x:%x\n", id1, id2);
 
-	/* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */
+	/*
+	 * We can reuse as3711_subdevs[],
+	 * it will be copied in mfd_add_devices()
+	 */
 	if (pdata) {
-		as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator;
-		as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator);
-		as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight;
-		as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight);
+		as3711_subdevs[AS3711_REGULATOR].platform_data =
+			&pdata->regulator;
+		as3711_subdevs[AS3711_REGULATOR].pdata_size =
+			sizeof(pdata->regulator);
+		as3711_subdevs[AS3711_BACKLIGHT].platform_data =
+			&pdata->backlight;
+		as3711_subdevs[AS3711_BACKLIGHT].pdata_size =
+			sizeof(pdata->backlight);
 	} else {
 		as3711_subdevs[AS3711_REGULATOR].platform_data = NULL;
 		as3711_subdevs[AS3711_REGULATOR].pdata_size = 0;
diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
index 924ea90494ae..e1f597f97f86 100644
--- a/drivers/mfd/as3722.c
+++ b/drivers/mfd/as3722.c
@@ -405,6 +405,8 @@ static int as3722_i2c_probe(struct i2c_client *i2c,
 		goto scrub;
 	}
 
+	device_init_wakeup(as3722->dev, true);
+
 	dev_dbg(as3722->dev, "AS3722 core driver initialized successfully\n");
 	return 0;
 
@@ -422,6 +424,29 @@ static int as3722_i2c_remove(struct i2c_client *i2c)
 	return 0;
 }
 
+static int __maybe_unused as3722_i2c_suspend(struct device *dev)
+{
+	struct as3722 *as3722 = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(as3722->chip_irq);
+	disable_irq(as3722->chip_irq);
+
+	return 0;
+}
+
+static int __maybe_unused as3722_i2c_resume(struct device *dev)
+{
+	struct as3722 *as3722 = dev_get_drvdata(dev);
+
+	enable_irq(as3722->chip_irq);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(as3722->chip_irq);
+
+	return 0;
+}
+
 static const struct of_device_id as3722_of_match[] = {
 	{ .compatible = "ams,as3722", },
 	{},
@@ -434,10 +459,15 @@ static const struct i2c_device_id as3722_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, as3722_i2c_id);
 
+static const struct dev_pm_ops as3722_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(as3722_i2c_suspend, as3722_i2c_resume)
+};
+
 static struct i2c_driver as3722_i2c_driver = {
 	.driver = {
 		.name = "as3722",
 		.of_match_table = as3722_of_match,
+		.pm = &as3722_pm_ops,
 	},
 	.probe = as3722_i2c_probe,
 	.remove = as3722_i2c_remove,
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index a726f01e3b02..4dca6bc61f5b 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -167,7 +167,6 @@ static void asic3_irq_demux(struct irq_desc *desc)
 
 				base = ASIC3_GPIO_A_BASE
 				       + bank * ASIC3_GPIO_BASE_INCR;
-
 				spin_lock_irqsave(&asic->lock, flags);
 				istat = asic3_read_register(asic,
 							    base +
@@ -502,7 +501,8 @@ static int asic3_gpio_get(struct gpio_chip *chip,
 		return -EINVAL;
 	}
 
-	return asic3_read_register(asic, gpio_base + ASIC3_GPIO_STATUS) & mask;
+	return !!(asic3_read_register(asic,
+				      gpio_base + ASIC3_GPIO_STATUS) & mask);
 }
 
 static void asic3_gpio_set(struct gpio_chip *chip,
@@ -536,8 +536,6 @@ static void asic3_gpio_set(struct gpio_chip *chip,
 	asic3_write_register(asic, gpio_base + ASIC3_GPIO_OUT, out_reg);
 
 	spin_unlock_irqrestore(&asic->lock, flags);
-
-	return;
 }
 
 static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
@@ -665,18 +663,18 @@ static int ds1wm_enable(struct platform_device *pdev)
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX0]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_OWM]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	/* Reset and enable DS1WM */
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET),
 			   ASIC3_EXTCF_OWM_RESET, 1);
-	msleep(1);
+	usleep_range(1000, 5000);
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET),
 			   ASIC3_EXTCF_OWM_RESET, 0);
-	msleep(1);
+	usleep_range(1000, 5000);
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
 			   ASIC3_EXTCF_OWM_EN, 1);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	return 0;
 }
@@ -757,7 +755,7 @@ static int asic3_mmc_enable(struct platform_device *pdev)
 	 * when HCLK is stopped.
 	 */
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	/* HCLK 24.576 MHz, BCLK 12.288 MHz: */
 	asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL),
@@ -765,7 +763,7 @@ static int asic3_mmc_enable(struct platform_device *pdev)
 
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_HOST]);
 	asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_BUS]);
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
 			   ASIC3_EXTCF_SD_MEM_ENABLE, 1);
@@ -841,7 +839,7 @@ static int asic3_leds_suspend(struct platform_device *pdev)
 	struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
 
 	while (asic3_gpio_get(&asic->gpio, ASIC3_GPIO(C, cell->id)) != 0)
-		msleep(1);
+		usleep_range(1000, 5000);
 
 	asic3_clk_disable(asic, &asic->clocks[clock_ledn[cell->id]]);
 
@@ -900,8 +898,8 @@ static int __init asic3_mfd_probe(struct platform_device *pdev,
 
 	/* MMC */
 	if (mem_sdio) {
-		asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +
-				 mem_sdio->start,
+		asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >>
+					  asic->bus_shift) + mem_sdio->start,
 				 ASIC3_SD_CONFIG_SIZE >> asic->bus_shift);
 		if (!asic->tmio_cnf) {
 			ret = -ENOMEM;
@@ -962,10 +960,8 @@ static int __init asic3_probe(struct platform_device *pdev)
 
 	asic = devm_kzalloc(&pdev->dev,
 			    sizeof(struct asic3), GFP_KERNEL);
-	if (asic == NULL) {
-		printk(KERN_ERR "kzalloc failed\n");
+	if (!asic)
 		return -ENOMEM;
-	}
 
 	spin_lock_init(&asic->lock);
 	platform_set_drvdata(pdev, asic);
@@ -1074,7 +1070,9 @@ static struct platform_driver asic3_device_driver = {
 static int __init asic3_init(void)
 {
 	int retval = 0;
+
 	retval = platform_driver_probe(&asic3_device_driver, asic3_probe);
+
 	return retval;
 }
 
diff --git a/drivers/mfd/cros_ec_i2c.c b/drivers/mfd/cros_ec_i2c.c
index 56a466469664..9f70de1e4c70 100644
--- a/drivers/mfd/cros_ec_i2c.c
+++ b/drivers/mfd/cros_ec_i2c.c
@@ -292,7 +292,7 @@ static int cros_ec_i2c_probe(struct i2c_client *client,
 	struct cros_ec_device *ec_dev = NULL;
 	int err;
 
- 	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
+	ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
 	if (!ec_dev)
 		return -ENOMEM;
 
diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index 6a0f6ec67c6b..ebe9b9477cb2 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -113,7 +113,7 @@ static int terminate_request(struct cros_ec_device *ec_dev)
 	trans.delay_usecs = ec_spi->end_of_msg_delay;
 	spi_message_add_tail(&trans, &msg);
 
-	ret = spi_sync(ec_spi->spi, &msg);
+	ret = spi_sync_locked(ec_spi->spi, &msg);
 
 	/* Reset end-of-response timer */
 	ec_spi->last_transfer_ns = ktime_get_ns();
@@ -147,7 +147,7 @@ static int receive_n_bytes(struct cros_ec_device *ec_dev, u8 *buf, int n)
 
 	spi_message_init(&msg);
 	spi_message_add_tail(&trans, &msg);
-	ret = spi_sync(ec_spi->spi, &msg);
+	ret = spi_sync_locked(ec_spi->spi, &msg);
 	if (ret < 0)
 		dev_err(ec_dev->dev, "spi transfer failed: %d\n", ret);
 
@@ -175,7 +175,7 @@ static int cros_ec_spi_receive_packet(struct cros_ec_device *ec_dev,
 	unsigned long deadline;
 	int todo;
 
-	BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
+	BUG_ON(ec_dev->din_size < EC_MSG_PREAMBLE_COUNT);
 
 	/* Receive data until we see the header byte */
 	deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS);
@@ -283,7 +283,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 	unsigned long deadline;
 	int todo;
 
-	BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
+	BUG_ON(ec_dev->din_size < EC_MSG_PREAMBLE_COUNT);
 
 	/* Receive data until we see the header byte */
 	deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS);
@@ -391,10 +391,10 @@ static int cros_ec_pkt_xfer_spi(struct cros_ec_device *ec_dev,
 	}
 
 	rx_buf = kzalloc(len, GFP_KERNEL);
-	if (!rx_buf) {
-		ret = -ENOMEM;
-		goto exit;
-	}
+	if (!rx_buf)
+		return -ENOMEM;
+
+	spi_bus_lock(ec_spi->spi->master);
 
 	/*
 	 * Leave a gap between CS assertion and clocking of data to allow the
@@ -414,7 +414,7 @@ static int cros_ec_pkt_xfer_spi(struct cros_ec_device *ec_dev,
 	trans.len = len;
 	trans.cs_change = 1;
 	spi_message_add_tail(&trans, &msg);
-	ret = spi_sync(ec_spi->spi, &msg);
+	ret = spi_sync_locked(ec_spi->spi, &msg);
 
 	/* Get the response */
 	if (!ret) {
@@ -440,6 +440,9 @@ static int cros_ec_pkt_xfer_spi(struct cros_ec_device *ec_dev,
 	}
 
 	final_ret = terminate_request(ec_dev);
+
+	spi_bus_unlock(ec_spi->spi->master);
+
 	if (!ret)
 		ret = final_ret;
 	if (ret < 0)
@@ -520,10 +523,10 @@ static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
 	}
 
 	rx_buf = kzalloc(len, GFP_KERNEL);
-	if (!rx_buf) {
-		ret = -ENOMEM;
-		goto exit;
-	}
+	if (!rx_buf)
+		return -ENOMEM;
+
+	spi_bus_lock(ec_spi->spi->master);
 
 	/* Transmit phase - send our message */
 	debug_packet(ec_dev->dev, "out", ec_dev->dout, len);
@@ -534,7 +537,7 @@ static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
 	trans.cs_change = 1;
 	spi_message_init(&msg);
 	spi_message_add_tail(&trans, &msg);
-	ret = spi_sync(ec_spi->spi, &msg);
+	ret = spi_sync_locked(ec_spi->spi, &msg);
 
 	/* Get the response */
 	if (!ret) {
@@ -560,6 +563,9 @@ static int cros_ec_cmd_xfer_spi(struct cros_ec_device *ec_dev,
 	}
 
 	final_ret = terminate_request(ec_dev);
+
+	spi_bus_unlock(ec_spi->spi->master);
+
 	if (!ret)
 		ret = final_ret;
 	if (ret < 0)
diff --git a/drivers/mfd/cs47l24-tables.c b/drivers/mfd/cs47l24-tables.c
new file mode 100644
index 000000000000..870800657594
--- /dev/null
+++ b/drivers/mfd/cs47l24-tables.c
@@ -0,0 +1,1629 @@
+/*
+ * Data tables for CS47L24 codec
+ *
+ * Copyright 2015 Cirrus Logic, Inc.
+ *
+ * Author: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+
+#include <linux/mfd/arizona/core.h>
+#include <linux/mfd/arizona/registers.h>
+#include <linux/device.h>
+
+#include "arizona.h"
+
+#define CS47L24_NUM_ISR 5
+
+static const struct reg_sequence cs47l24_reva_patch[] = {
+	{ 0x80,  0x3 },
+	{ 0x27C, 0x0010 },
+	{ 0x221, 0x0070 },
+	{ 0x80,  0x0 },
+};
+
+int cs47l24_patch(struct arizona *arizona)
+{
+	return regmap_register_patch(arizona->regmap,
+				     cs47l24_reva_patch,
+				     ARRAY_SIZE(cs47l24_reva_patch));
+}
+EXPORT_SYMBOL_GPL(cs47l24_patch);
+
+static const struct regmap_irq cs47l24_irqs[ARIZONA_NUM_IRQ] = {
+	[ARIZONA_IRQ_GP2] = { .reg_offset = 0, .mask = ARIZONA_GP2_EINT1 },
+	[ARIZONA_IRQ_GP1] = { .reg_offset = 0, .mask = ARIZONA_GP1_EINT1 },
+
+	[ARIZONA_IRQ_DSP3_RAM_RDY] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP3_RAM_RDY_EINT1
+	},
+	[ARIZONA_IRQ_DSP2_RAM_RDY] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP2_RAM_RDY_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ8] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ8_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ7] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ7_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ6] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ6_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ5] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ5_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ4] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ4_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ3] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ3_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ2] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ2_EINT1
+	},
+	[ARIZONA_IRQ_DSP_IRQ1] = {
+		.reg_offset = 1, .mask = ARIZONA_DSP_IRQ1_EINT1
+	},
+
+	[ARIZONA_IRQ_SPK_OVERHEAT_WARN] = {
+		.reg_offset = 2, .mask = ARIZONA_SPK_OVERHEAT_WARN_EINT1
+	},
+	[ARIZONA_IRQ_SPK_OVERHEAT] = {
+		.reg_offset = 2, .mask = ARIZONA_SPK_OVERHEAT_EINT1
+	},
+	[ARIZONA_IRQ_WSEQ_DONE] = {
+		.reg_offset = 2, .mask = ARIZONA_WSEQ_DONE_EINT1
+	},
+	[ARIZONA_IRQ_DRC2_SIG_DET] = {
+		.reg_offset = 2, .mask = ARIZONA_DRC2_SIG_DET_EINT1
+	},
+	[ARIZONA_IRQ_DRC1_SIG_DET] = {
+		.reg_offset = 2, .mask = ARIZONA_DRC1_SIG_DET_EINT1
+	},
+	[ARIZONA_IRQ_ASRC2_LOCK] = {
+		.reg_offset = 2, .mask = ARIZONA_ASRC2_LOCK_EINT1
+	},
+	[ARIZONA_IRQ_ASRC1_LOCK] = {
+		.reg_offset = 2, .mask = ARIZONA_ASRC1_LOCK_EINT1
+	},
+	[ARIZONA_IRQ_UNDERCLOCKED] = {
+		.reg_offset = 2, .mask = ARIZONA_UNDERCLOCKED_EINT1
+	},
+	[ARIZONA_IRQ_OVERCLOCKED] = {
+		.reg_offset = 2, .mask = ARIZONA_OVERCLOCKED_EINT1
+	},
+	[ARIZONA_IRQ_FLL2_LOCK] = {
+		.reg_offset = 2, .mask = ARIZONA_FLL2_LOCK_EINT1
+	},
+	[ARIZONA_IRQ_FLL1_LOCK] = {
+		.reg_offset = 2, .mask = ARIZONA_FLL1_LOCK_EINT1
+	},
+	[ARIZONA_IRQ_CLKGEN_ERR] = {
+		.reg_offset = 2, .mask = ARIZONA_CLKGEN_ERR_EINT1
+	},
+	[ARIZONA_IRQ_CLKGEN_ERR_ASYNC] = {
+		.reg_offset = 2, .mask = ARIZONA_CLKGEN_ERR_ASYNC_EINT1
+	},
+
+	[ARIZONA_IRQ_CTRLIF_ERR] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_CTRLIF_ERR_EINT1
+	},
+	[ARIZONA_IRQ_MIXER_DROPPED_SAMPLES] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_MIXER_DROPPED_SAMPLE_EINT1
+	},
+	[ARIZONA_IRQ_ASYNC_CLK_ENA_LOW] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_ASYNC_CLK_ENA_LOW_EINT1
+	},
+	[ARIZONA_IRQ_SYSCLK_ENA_LOW] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_SYSCLK_ENA_LOW_EINT1
+	},
+	[ARIZONA_IRQ_ISRC1_CFG_ERR] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_ISRC1_CFG_ERR_EINT1
+	},
+	[ARIZONA_IRQ_ISRC2_CFG_ERR] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_ISRC2_CFG_ERR_EINT1
+	},
+	[ARIZONA_IRQ_ISRC3_CFG_ERR] = {
+		.reg_offset = 3, .mask = ARIZONA_V2_ISRC3_CFG_ERR_EINT1
+	},
+	[ARIZONA_IRQ_HP1R_DONE] = {
+		.reg_offset = 3, .mask = ARIZONA_HP1R_DONE_EINT1
+	},
+	[ARIZONA_IRQ_HP1L_DONE] = {
+		.reg_offset = 3, .mask = ARIZONA_HP1L_DONE_EINT1
+	},
+
+	[ARIZONA_IRQ_BOOT_DONE] = {
+		.reg_offset = 4, .mask = ARIZONA_BOOT_DONE_EINT1
+	},
+	[ARIZONA_IRQ_ASRC_CFG_ERR] = {
+		.reg_offset = 4, .mask = ARIZONA_V2_ASRC_CFG_ERR_EINT1
+	},
+	[ARIZONA_IRQ_FLL2_CLOCK_OK] = {
+		.reg_offset = 4, .mask = ARIZONA_FLL2_CLOCK_OK_EINT1
+	},
+	[ARIZONA_IRQ_FLL1_CLOCK_OK] = {
+		.reg_offset = 4, .mask = ARIZONA_FLL1_CLOCK_OK_EINT1
+	},
+
+	[ARIZONA_IRQ_DSP_SHARED_WR_COLL] = {
+		.reg_offset = 5, .mask = ARIZONA_DSP_SHARED_WR_COLL_EINT1
+	},
+	[ARIZONA_IRQ_SPK_SHUTDOWN] = {
+		.reg_offset = 5, .mask = ARIZONA_SPK_SHUTDOWN_EINT1
+	},
+	[ARIZONA_IRQ_SPK1R_SHORT] = {
+		.reg_offset = 5, .mask = ARIZONA_SPK1R_SHORT_EINT1
+	},
+	[ARIZONA_IRQ_SPK1L_SHORT] = {
+		.reg_offset = 5, .mask = ARIZONA_SPK1L_SHORT_EINT1
+	},
+	[ARIZONA_IRQ_HP1R_SC_POS] = {
+		.reg_offset = 5, .mask = ARIZONA_HP1R_SC_POS_EINT1
+	},
+	[ARIZONA_IRQ_HP1L_SC_POS] = {
+		.reg_offset = 5, .mask = ARIZONA_HP1L_SC_POS_EINT1
+	},
+};
+
+const struct regmap_irq_chip cs47l24_irq = {
+	.name = "cs47l24 IRQ",
+	.status_base = ARIZONA_INTERRUPT_STATUS_1,
+	.mask_base = ARIZONA_INTERRUPT_STATUS_1_MASK,
+	.ack_base = ARIZONA_INTERRUPT_STATUS_1,
+	.num_regs = 6,
+	.irqs = cs47l24_irqs,
+	.num_irqs = ARRAY_SIZE(cs47l24_irqs),
+};
+EXPORT_SYMBOL_GPL(cs47l24_irq);
+
+static const struct reg_default cs47l24_reg_default[] = {
+	{ 0x00000008, 0x0019 },    /* R8     - Ctrl IF SPI CFG 1 */
+	{ 0x00000020, 0x0000 },    /* R32    - Tone Generator 1 */
+	{ 0x00000021, 0x1000 },    /* R33    - Tone Generator 2 */
+	{ 0x00000022, 0x0000 },    /* R34    - Tone Generator 3 */
+	{ 0x00000023, 0x1000 },    /* R35    - Tone Generator 4 */
+	{ 0x00000024, 0x0000 },    /* R36    - Tone Generator 5 */
+	{ 0x00000030, 0x0000 },    /* R48    - PWM Drive 1 */
+	{ 0x00000031, 0x0100 },    /* R49    - PWM Drive 2 */
+	{ 0x00000032, 0x0100 },    /* R50    - PWM Drive 3 */
+	{ 0x00000041, 0x0000 },    /* R65    - Sequence control */
+	{ 0x00000061, 0x01FF },    /* R97    - Sample Rate Sequence Select 1 */
+	{ 0x00000062, 0x01FF },    /* R98    - Sample Rate Sequence Select 2 */
+	{ 0x00000063, 0x01FF },    /* R99    - Sample Rate Sequence Select 3 */
+	{ 0x00000064, 0x01FF },    /* R100   - Sample Rate Sequence Select 4 */
+	{ 0x00000070, 0x0000 },    /* R112   - Comfort Noise Generator */
+	{ 0x00000090, 0x0000 },    /* R144   - Haptics Control 1 */
+	{ 0x00000091, 0x7FFF },    /* R145   - Haptics Control 2 */
+	{ 0x00000092, 0x0000 },    /* R146   - Haptics phase 1 intensity */
+	{ 0x00000093, 0x0000 },    /* R147   - Haptics phase 1 duration */
+	{ 0x00000094, 0x0000 },    /* R148   - Haptics phase 2 intensity */
+	{ 0x00000095, 0x0000 },    /* R149   - Haptics phase 2 duration */
+	{ 0x00000096, 0x0000 },    /* R150   - Haptics phase 3 intensity */
+	{ 0x00000097, 0x0000 },    /* R151   - Haptics phase 3 duration */
+	{ 0x00000100, 0x0002 },    /* R256   - Clock 32k 1 */
+	{ 0x00000101, 0x0504 },    /* R257   - System Clock 1 */
+	{ 0x00000102, 0x0011 },    /* R258   - Sample rate 1 */
+	{ 0x00000103, 0x0011 },    /* R259   - Sample rate 2 */
+	{ 0x00000104, 0x0011 },    /* R260   - Sample rate 3 */
+	{ 0x00000112, 0x0305 },    /* R274   - Async clock 1 */
+	{ 0x00000113, 0x0011 },    /* R275   - Async sample rate 1 */
+	{ 0x00000114, 0x0011 },    /* R276   - Async sample rate 2 */
+	{ 0x00000149, 0x0000 },    /* R329   - Output system clock */
+	{ 0x0000014A, 0x0000 },    /* R330   - Output async clock */
+	{ 0x00000152, 0x0000 },    /* R338   - Rate Estimator 1 */
+	{ 0x00000153, 0x0000 },    /* R339   - Rate Estimator 2 */
+	{ 0x00000154, 0x0000 },    /* R340   - Rate Estimator 3 */
+	{ 0x00000155, 0x0000 },    /* R341   - Rate Estimator 4 */
+	{ 0x00000156, 0x0000 },    /* R342   - Rate Estimator 5 */
+	{ 0x00000171, 0x0002 },    /* R369   - FLL1 Control 1 */
+	{ 0x00000172, 0x0008 },    /* R370   - FLL1 Control 2 */
+	{ 0x00000173, 0x0018 },    /* R371   - FLL1 Control 3 */
+	{ 0x00000174, 0x007D },    /* R372   - FLL1 Control 4 */
+	{ 0x00000175, 0x0006 },    /* R373   - FLL1 Control 5 */
+	{ 0x00000176, 0x0000 },    /* R374   - FLL1 Control 6 */
+	{ 0x00000177, 0x0281 },    /* R375   - FLL1 Loop Filter Test 1 */
+	{ 0x00000178, 0x0000 },    /* R376   - FLL1 NCO Test 0 */
+	{ 0x00000179, 0x0000 },    /* R376   - FLL1 Control 7 */
+	{ 0x00000181, 0x0000 },    /* R385   - FLL1 Synchroniser 1 */
+	{ 0x00000182, 0x0000 },    /* R386   - FLL1 Synchroniser 2 */
+	{ 0x00000183, 0x0000 },    /* R387   - FLL1 Synchroniser 3 */
+	{ 0x00000184, 0x0000 },    /* R388   - FLL1 Synchroniser 4 */
+	{ 0x00000185, 0x0000 },    /* R389   - FLL1 Synchroniser 5 */
+	{ 0x00000186, 0x0000 },    /* R390   - FLL1 Synchroniser 6 */
+	{ 0x00000187, 0x0001 },    /* R390   - FLL1 Synchroniser 7 */
+	{ 0x00000189, 0x0000 },    /* R393   - FLL1 Spread Spectrum */
+	{ 0x0000018A, 0x000C },    /* R394   - FLL1 GPIO Clock */
+	{ 0x00000191, 0x0002 },    /* R401   - FLL2 Control 1 */
+	{ 0x00000192, 0x0008 },    /* R402   - FLL2 Control 2 */
+	{ 0x00000193, 0x0018 },    /* R403   - FLL2 Control 3 */
+	{ 0x00000194, 0x007D },    /* R404   - FLL2 Control 4 */
+	{ 0x00000195, 0x000C },    /* R405   - FLL2 Control 5 */
+	{ 0x00000196, 0x0000 },    /* R406   - FLL2 Control 6 */
+	{ 0x00000197, 0x0000 },    /* R407   - FLL2 Loop Filter Test 1 */
+	{ 0x00000198, 0x0000 },    /* R408   - FLL2 NCO Test 0 */
+	{ 0x00000199, 0x0000 },    /* R408   - FLL2 Control 7 */
+	{ 0x000001A1, 0x0000 },    /* R417   - FLL2 Synchroniser 1 */
+	{ 0x000001A2, 0x0000 },    /* R418   - FLL2 Synchroniser 2 */
+	{ 0x000001A3, 0x0000 },    /* R419   - FLL2 Synchroniser 3 */
+	{ 0x000001A4, 0x0000 },    /* R420   - FLL2 Synchroniser 4 */
+	{ 0x000001A5, 0x0000 },    /* R421   - FLL2 Synchroniser 5 */
+	{ 0x000001A6, 0x0000 },    /* R422   - FLL2 Synchroniser 6 */
+	{ 0x000001A7, 0x0001 },    /* R422   - FLL2 Synchroniser 7 */
+	{ 0x000001A9, 0x0000 },    /* R425   - FLL2 Spread Spectrum */
+	{ 0x000001AA, 0x000C },    /* R426   - FLL2 GPIO Clock */
+	{ 0x00000218, 0x00E6 },    /* R536   - Mic Bias Ctrl 1 */
+	{ 0x00000219, 0x00E6 },    /* R537   - Mic Bias Ctrl 2 */
+	{ 0x00000300, 0x0000 },    /* R768   - Input Enables */
+	{ 0x00000308, 0x0000 },    /* R776   - Input Rate */
+	{ 0x00000309, 0x0022 },    /* R777   - Input Volume Ramp */
+	{ 0x0000030C, 0x0002 },    /* R780   - HPF Control */
+	{ 0x00000310, 0x2000 },    /* R784   - IN1L Control */
+	{ 0x00000311, 0x0180 },    /* R785   - ADC Digital Volume 1L */
+	{ 0x00000312, 0x0000 },    /* R786   - DMIC1L Control */
+	{ 0x00000314, 0x0000 },    /* R788   - IN1R Control */
+	{ 0x00000315, 0x0180 },    /* R789   - ADC Digital Volume 1R */
+	{ 0x00000316, 0x0000 },    /* R790   - DMIC1R Control */
+	{ 0x00000318, 0x2000 },    /* R792   - IN2L Control */
+	{ 0x00000319, 0x0180 },    /* R793   - ADC Digital Volume 2L */
+	{ 0x0000031A, 0x0000 },    /* R794   - DMIC2L Control */
+	{ 0x0000031C, 0x0000 },    /* R796   - IN2R Control */
+	{ 0x0000031D, 0x0180 },    /* R797   - ADC Digital Volume 2R */
+	{ 0x0000031E, 0x0000 },    /* R798   - DMIC2R Control */
+	{ 0x00000400, 0x0000 },    /* R1024  - Output Enables 1 */
+	{ 0x00000408, 0x0000 },    /* R1032  - Output Rate 1 */
+	{ 0x00000409, 0x0022 },    /* R1033  - Output Volume Ramp */
+	{ 0x00000410, 0x0080 },    /* R1040  - Output Path Config 1L */
+	{ 0x00000411, 0x0180 },    /* R1041  - DAC Digital Volume 1L */
+	{ 0x00000412, 0x0081 },    /* R1042  - DAC Volume Limit 1L */
+	{ 0x00000413, 0x0001 },    /* R1043  - Noise Gate Select 1L */
+	{ 0x00000415, 0x0180 },    /* R1045  - DAC Digital Volume 1R */
+	{ 0x00000416, 0x0081 },    /* R1046  - DAC Volume Limit 1R */
+	{ 0x00000417, 0x0002 },    /* R1047  - Noise Gate Select 1R */
+	{ 0x00000429, 0x0180 },    /* R1065  - DAC Digital Volume 4L */
+	{ 0x0000042A, 0x0081 },    /* R1066  - Out Volume 4L */
+	{ 0x0000042B, 0x0040 },    /* R1067  - Noise Gate Select 4L */
+	{ 0x00000450, 0x0000 },    /* R1104  - DAC AEC Control 1 */
+	{ 0x00000458, 0x0000 },    /* R1112  - Noise Gate Control */
+	{ 0x000004A0, 0x3480 },    /* R1184  - HP1 Short Circuit Ctrl */
+	{ 0x00000500, 0x000C },    /* R1280  - AIF1 BCLK Ctrl */
+	{ 0x00000501, 0x0008 },    /* R1281  - AIF1 Tx Pin Ctrl */
+	{ 0x00000502, 0x0000 },    /* R1282  - AIF1 Rx Pin Ctrl */
+	{ 0x00000503, 0x0000 },    /* R1283  - AIF1 Rate Ctrl */
+	{ 0x00000504, 0x0000 },    /* R1284  - AIF1 Format */
+	{ 0x00000506, 0x0040 },    /* R1286  - AIF1 Rx BCLK Rate */
+	{ 0x00000507, 0x1818 },    /* R1287  - AIF1 Frame Ctrl 1 */
+	{ 0x00000508, 0x1818 },    /* R1288  - AIF1 Frame Ctrl 2 */
+	{ 0x00000509, 0x0000 },    /* R1289  - AIF1 Frame Ctrl 3 */
+	{ 0x0000050A, 0x0001 },    /* R1290  - AIF1 Frame Ctrl 4 */
+	{ 0x0000050B, 0x0002 },    /* R1291  - AIF1 Frame Ctrl 5 */
+	{ 0x0000050C, 0x0003 },    /* R1292  - AIF1 Frame Ctrl 6 */
+	{ 0x0000050D, 0x0004 },    /* R1293  - AIF1 Frame Ctrl 7 */
+	{ 0x0000050E, 0x0005 },    /* R1294  - AIF1 Frame Ctrl 8 */
+	{ 0x0000050F, 0x0006 },    /* R1295  - AIF1 Frame Ctrl 9 */
+	{ 0x00000510, 0x0007 },    /* R1296  - AIF1 Frame Ctrl 10 */
+	{ 0x00000511, 0x0000 },    /* R1297  - AIF1 Frame Ctrl 11 */
+	{ 0x00000512, 0x0001 },    /* R1298  - AIF1 Frame Ctrl 12 */
+	{ 0x00000513, 0x0002 },    /* R1299  - AIF1 Frame Ctrl 13 */
+	{ 0x00000514, 0x0003 },    /* R1300  - AIF1 Frame Ctrl 14 */
+	{ 0x00000515, 0x0004 },    /* R1301  - AIF1 Frame Ctrl 15 */
+	{ 0x00000516, 0x0005 },    /* R1302  - AIF1 Frame Ctrl 16 */
+	{ 0x00000517, 0x0006 },    /* R1303  - AIF1 Frame Ctrl 17 */
+	{ 0x00000518, 0x0007 },    /* R1304  - AIF1 Frame Ctrl 18 */
+	{ 0x00000519, 0x0000 },    /* R1305  - AIF1 Tx Enables */
+	{ 0x0000051A, 0x0000 },    /* R1306  - AIF1 Rx Enables */
+	{ 0x00000540, 0x000C },    /* R1344  - AIF2 BCLK Ctrl */
+	{ 0x00000541, 0x0008 },    /* R1345  - AIF2 Tx Pin Ctrl */
+	{ 0x00000542, 0x0000 },    /* R1346  - AIF2 Rx Pin Ctrl */
+	{ 0x00000543, 0x0000 },    /* R1347  - AIF2 Rate Ctrl */
+	{ 0x00000544, 0x0000 },    /* R1348  - AIF2 Format */
+	{ 0x00000546, 0x0040 },    /* R1350  - AIF2 Rx BCLK Rate */
+	{ 0x00000547, 0x1818 },    /* R1351  - AIF2 Frame Ctrl 1 */
+	{ 0x00000548, 0x1818 },    /* R1352  - AIF2 Frame Ctrl 2 */
+	{ 0x00000549, 0x0000 },    /* R1353  - AIF2 Frame Ctrl 3 */
+	{ 0x0000054A, 0x0001 },    /* R1354  - AIF2 Frame Ctrl 4 */
+	{ 0x0000054B, 0x0002 },    /* R1355  - AIF2 Frame Ctrl 5 */
+	{ 0x0000054C, 0x0003 },    /* R1356  - AIF2 Frame Ctrl 6 */
+	{ 0x0000054D, 0x0004 },    /* R1357  - AIF2 Frame Ctrl 7 */
+	{ 0x0000054E, 0x0005 },    /* R1358  - AIF2 Frame Ctrl 8 */
+	{ 0x00000551, 0x0000 },    /* R1361  - AIF2 Frame Ctrl 11 */
+	{ 0x00000552, 0x0001 },    /* R1362  - AIF2 Frame Ctrl 12 */
+	{ 0x00000553, 0x0002 },    /* R1363  - AIF2 Frame Ctrl 13 */
+	{ 0x00000554, 0x0003 },    /* R1364  - AIF2 Frame Ctrl 14 */
+	{ 0x00000555, 0x0004 },    /* R1365  - AIF2 Frame Ctrl 15 */
+	{ 0x00000556, 0x0005 },    /* R1366  - AIF2 Frame Ctrl 16 */
+	{ 0x00000559, 0x0000 },    /* R1369  - AIF2 Tx Enables */
+	{ 0x0000055A, 0x0000 },    /* R1370  - AIF2 Rx Enables */
+	{ 0x00000580, 0x000C },    /* R1408  - AIF3 BCLK Ctrl */
+	{ 0x00000581, 0x0008 },    /* R1409  - AIF3 Tx Pin Ctrl */
+	{ 0x00000582, 0x0000 },    /* R1410  - AIF3 Rx Pin Ctrl */
+	{ 0x00000583, 0x0000 },    /* R1411  - AIF3 Rate Ctrl */
+	{ 0x00000584, 0x0000 },    /* R1412  - AIF3 Format */
+	{ 0x00000586, 0x0040 },    /* R1414  - AIF3 Rx BCLK Rate */
+	{ 0x00000587, 0x1818 },    /* R1415  - AIF3 Frame Ctrl 1 */
+	{ 0x00000588, 0x1818 },    /* R1416  - AIF3 Frame Ctrl 2 */
+	{ 0x00000589, 0x0000 },    /* R1417  - AIF3 Frame Ctrl 3 */
+	{ 0x0000058A, 0x0001 },    /* R1418  - AIF3 Frame Ctrl 4 */
+	{ 0x00000591, 0x0000 },    /* R1425  - AIF3 Frame Ctrl 11 */
+	{ 0x00000592, 0x0001 },    /* R1426  - AIF3 Frame Ctrl 12 */
+	{ 0x00000599, 0x0000 },    /* R1433  - AIF3 Tx Enables */
+	{ 0x0000059A, 0x0000 },    /* R1434  - AIF3 Rx Enables */
+	{ 0x00000640, 0x0000 },    /* R1600  - PWM1MIX Input 1 Source */
+	{ 0x00000641, 0x0080 },    /* R1601  - PWM1MIX Input 1 Volume */
+	{ 0x00000642, 0x0000 },    /* R1602  - PWM1MIX Input 2 Source */
+	{ 0x00000643, 0x0080 },    /* R1603  - PWM1MIX Input 2 Volume */
+	{ 0x00000644, 0x0000 },    /* R1604  - PWM1MIX Input 3 Source */
+	{ 0x00000645, 0x0080 },    /* R1605  - PWM1MIX Input 3 Volume */
+	{ 0x00000646, 0x0000 },    /* R1606  - PWM1MIX Input 4 Source */
+	{ 0x00000647, 0x0080 },    /* R1607  - PWM1MIX Input 4 Volume */
+	{ 0x00000648, 0x0000 },    /* R1608  - PWM2MIX Input 1 Source */
+	{ 0x00000649, 0x0080 },    /* R1609  - PWM2MIX Input 1 Volume */
+	{ 0x0000064A, 0x0000 },    /* R1610  - PWM2MIX Input 2 Source */
+	{ 0x0000064B, 0x0080 },    /* R1611  - PWM2MIX Input 2 Volume */
+	{ 0x0000064C, 0x0000 },    /* R1612  - PWM2MIX Input 3 Source */
+	{ 0x0000064D, 0x0080 },    /* R1613  - PWM2MIX Input 3 Volume */
+	{ 0x0000064E, 0x0000 },    /* R1614  - PWM2MIX Input 4 Source */
+	{ 0x0000064F, 0x0080 },    /* R1615  - PWM2MIX Input 4 Volume */
+	{ 0x00000680, 0x0000 },    /* R1664  - OUT1LMIX Input 1 Source */
+	{ 0x00000681, 0x0080 },    /* R1665  - OUT1LMIX Input 1 Volume */
+	{ 0x00000682, 0x0000 },    /* R1666  - OUT1LMIX Input 2 Source */
+	{ 0x00000683, 0x0080 },    /* R1667  - OUT1LMIX Input 2 Volume */
+	{ 0x00000684, 0x0000 },    /* R1668  - OUT1LMIX Input 3 Source */
+	{ 0x00000685, 0x0080 },    /* R1669  - OUT1LMIX Input 3 Volume */
+	{ 0x00000686, 0x0000 },    /* R1670  - OUT1LMIX Input 4 Source */
+	{ 0x00000687, 0x0080 },    /* R1671  - OUT1LMIX Input 4 Volume */
+	{ 0x00000688, 0x0000 },    /* R1672  - OUT1RMIX Input 1 Source */
+	{ 0x00000689, 0x0080 },    /* R1673  - OUT1RMIX Input 1 Volume */
+	{ 0x0000068A, 0x0000 },    /* R1674  - OUT1RMIX Input 2 Source */
+	{ 0x0000068B, 0x0080 },    /* R1675  - OUT1RMIX Input 2 Volume */
+	{ 0x0000068C, 0x0000 },    /* R1676  - OUT1RMIX Input 3 Source */
+	{ 0x0000068D, 0x0080 },    /* R1677  - OUT1RMIX Input 3 Volume */
+	{ 0x0000068E, 0x0000 },    /* R1678  - OUT1RMIX Input 4 Source */
+	{ 0x0000068F, 0x0080 },    /* R1679  - OUT1RMIX Input 4 Volume */
+	{ 0x000006B0, 0x0000 },    /* R1712  - OUT4LMIX Input 1 Source */
+	{ 0x000006B1, 0x0080 },    /* R1713  - OUT4LMIX Input 1 Volume */
+	{ 0x000006B2, 0x0000 },    /* R1714  - OUT4LMIX Input 2 Source */
+	{ 0x000006B3, 0x0080 },    /* R1715  - OUT4LMIX Input 2 Volume */
+	{ 0x000006B4, 0x0000 },    /* R1716  - OUT4LMIX Input 3 Source */
+	{ 0x000006B5, 0x0080 },    /* R1717  - OUT4LMIX Input 3 Volume */
+	{ 0x000006B6, 0x0000 },    /* R1718  - OUT4LMIX Input 4 Source */
+	{ 0x000006B7, 0x0080 },    /* R1719  - OUT4LMIX Input 4 Volume */
+	{ 0x00000700, 0x0000 },    /* R1792  - AIF1TX1MIX Input 1 Source */
+	{ 0x00000701, 0x0080 },    /* R1793  - AIF1TX1MIX Input 1 Volume */
+	{ 0x00000702, 0x0000 },    /* R1794  - AIF1TX1MIX Input 2 Source */
+	{ 0x00000703, 0x0080 },    /* R1795  - AIF1TX1MIX Input 2 Volume */
+	{ 0x00000704, 0x0000 },    /* R1796  - AIF1TX1MIX Input 3 Source */
+	{ 0x00000705, 0x0080 },    /* R1797  - AIF1TX1MIX Input 3 Volume */
+	{ 0x00000706, 0x0000 },    /* R1798  - AIF1TX1MIX Input 4 Source */
+	{ 0x00000707, 0x0080 },    /* R1799  - AIF1TX1MIX Input 4 Volume */
+	{ 0x00000708, 0x0000 },    /* R1800  - AIF1TX2MIX Input 1 Source */
+	{ 0x00000709, 0x0080 },    /* R1801  - AIF1TX2MIX Input 1 Volume */
+	{ 0x0000070A, 0x0000 },    /* R1802  - AIF1TX2MIX Input 2 Source */
+	{ 0x0000070B, 0x0080 },    /* R1803  - AIF1TX2MIX Input 2 Volume */
+	{ 0x0000070C, 0x0000 },    /* R1804  - AIF1TX2MIX Input 3 Source */
+	{ 0x0000070D, 0x0080 },    /* R1805  - AIF1TX2MIX Input 3 Volume */
+	{ 0x0000070E, 0x0000 },    /* R1806  - AIF1TX2MIX Input 4 Source */
+	{ 0x0000070F, 0x0080 },    /* R1807  - AIF1TX2MIX Input 4 Volume */
+	{ 0x00000710, 0x0000 },    /* R1808  - AIF1TX3MIX Input 1 Source */
+	{ 0x00000711, 0x0080 },    /* R1809  - AIF1TX3MIX Input 1 Volume */
+	{ 0x00000712, 0x0000 },    /* R1810  - AIF1TX3MIX Input 2 Source */
+	{ 0x00000713, 0x0080 },    /* R1811  - AIF1TX3MIX Input 2 Volume */
+	{ 0x00000714, 0x0000 },    /* R1812  - AIF1TX3MIX Input 3 Source */
+	{ 0x00000715, 0x0080 },    /* R1813  - AIF1TX3MIX Input 3 Volume */
+	{ 0x00000716, 0x0000 },    /* R1814  - AIF1TX3MIX Input 4 Source */
+	{ 0x00000717, 0x0080 },    /* R1815  - AIF1TX3MIX Input 4 Volume */
+	{ 0x00000718, 0x0000 },    /* R1816  - AIF1TX4MIX Input 1 Source */
+	{ 0x00000719, 0x0080 },    /* R1817  - AIF1TX4MIX Input 1 Volume */
+	{ 0x0000071A, 0x0000 },    /* R1818  - AIF1TX4MIX Input 2 Source */
+	{ 0x0000071B, 0x0080 },    /* R1819  - AIF1TX4MIX Input 2 Volume */
+	{ 0x0000071C, 0x0000 },    /* R1820  - AIF1TX4MIX Input 3 Source */
+	{ 0x0000071D, 0x0080 },    /* R1821  - AIF1TX4MIX Input 3 Volume */
+	{ 0x0000071E, 0x0000 },    /* R1822  - AIF1TX4MIX Input 4 Source */
+	{ 0x0000071F, 0x0080 },    /* R1823  - AIF1TX4MIX Input 4 Volume */
+	{ 0x00000720, 0x0000 },    /* R1824  - AIF1TX5MIX Input 1 Source */
+	{ 0x00000721, 0x0080 },    /* R1825  - AIF1TX5MIX Input 1 Volume */
+	{ 0x00000722, 0x0000 },    /* R1826  - AIF1TX5MIX Input 2 Source */
+	{ 0x00000723, 0x0080 },    /* R1827  - AIF1TX5MIX Input 2 Volume */
+	{ 0x00000724, 0x0000 },    /* R1828  - AIF1TX5MIX Input 3 Source */
+	{ 0x00000725, 0x0080 },    /* R1829  - AIF1TX5MIX Input 3 Volume */
+	{ 0x00000726, 0x0000 },    /* R1830  - AIF1TX5MIX Input 4 Source */
+	{ 0x00000727, 0x0080 },    /* R1831  - AIF1TX5MIX Input 4 Volume */
+	{ 0x00000728, 0x0000 },    /* R1832  - AIF1TX6MIX Input 1 Source */
+	{ 0x00000729, 0x0080 },    /* R1833  - AIF1TX6MIX Input 1 Volume */
+	{ 0x0000072A, 0x0000 },    /* R1834  - AIF1TX6MIX Input 2 Source */
+	{ 0x0000072B, 0x0080 },    /* R1835  - AIF1TX6MIX Input 2 Volume */
+	{ 0x0000072C, 0x0000 },    /* R1836  - AIF1TX6MIX Input 3 Source */
+	{ 0x0000072D, 0x0080 },    /* R1837  - AIF1TX6MIX Input 3 Volume */
+	{ 0x0000072E, 0x0000 },    /* R1838  - AIF1TX6MIX Input 4 Source */
+	{ 0x0000072F, 0x0080 },    /* R1839  - AIF1TX6MIX Input 4 Volume */
+	{ 0x00000730, 0x0000 },    /* R1840  - AIF1TX7MIX Input 1 Source */
+	{ 0x00000731, 0x0080 },    /* R1841  - AIF1TX7MIX Input 1 Volume */
+	{ 0x00000732, 0x0000 },    /* R1842  - AIF1TX7MIX Input 2 Source */
+	{ 0x00000733, 0x0080 },    /* R1843  - AIF1TX7MIX Input 2 Volume */
+	{ 0x00000734, 0x0000 },    /* R1844  - AIF1TX7MIX Input 3 Source */
+	{ 0x00000735, 0x0080 },    /* R1845  - AIF1TX7MIX Input 3 Volume */
+	{ 0x00000736, 0x0000 },    /* R1846  - AIF1TX7MIX Input 4 Source */
+	{ 0x00000737, 0x0080 },    /* R1847  - AIF1TX7MIX Input 4 Volume */
+	{ 0x00000738, 0x0000 },    /* R1848  - AIF1TX8MIX Input 1 Source */
+	{ 0x00000739, 0x0080 },    /* R1849  - AIF1TX8MIX Input 1 Volume */
+	{ 0x0000073A, 0x0000 },    /* R1850  - AIF1TX8MIX Input 2 Source */
+	{ 0x0000073B, 0x0080 },    /* R1851  - AIF1TX8MIX Input 2 Volume */
+	{ 0x0000073C, 0x0000 },    /* R1852  - AIF1TX8MIX Input 3 Source */
+	{ 0x0000073D, 0x0080 },    /* R1853  - AIF1TX8MIX Input 3 Volume */
+	{ 0x0000073E, 0x0000 },    /* R1854  - AIF1TX8MIX Input 4 Source */
+	{ 0x0000073F, 0x0080 },    /* R1855  - AIF1TX8MIX Input 4 Volume */
+	{ 0x00000740, 0x0000 },    /* R1856  - AIF2TX1MIX Input 1 Source */
+	{ 0x00000741, 0x0080 },    /* R1857  - AIF2TX1MIX Input 1 Volume */
+	{ 0x00000742, 0x0000 },    /* R1858  - AIF2TX1MIX Input 2 Source */
+	{ 0x00000743, 0x0080 },    /* R1859  - AIF2TX1MIX Input 2 Volume */
+	{ 0x00000744, 0x0000 },    /* R1860  - AIF2TX1MIX Input 3 Source */
+	{ 0x00000745, 0x0080 },    /* R1861  - AIF2TX1MIX Input 3 Volume */
+	{ 0x00000746, 0x0000 },    /* R1862  - AIF2TX1MIX Input 4 Source */
+	{ 0x00000747, 0x0080 },    /* R1863  - AIF2TX1MIX Input 4 Volume */
+	{ 0x00000748, 0x0000 },    /* R1864  - AIF2TX2MIX Input 1 Source */
+	{ 0x00000749, 0x0080 },    /* R1865  - AIF2TX2MIX Input 1 Volume */
+	{ 0x0000074A, 0x0000 },    /* R1866  - AIF2TX2MIX Input 2 Source */
+	{ 0x0000074B, 0x0080 },    /* R1867  - AIF2TX2MIX Input 2 Volume */
+	{ 0x0000074C, 0x0000 },    /* R1868  - AIF2TX2MIX Input 3 Source */
+	{ 0x0000074D, 0x0080 },    /* R1869  - AIF2TX2MIX Input 3 Volume */
+	{ 0x0000074E, 0x0000 },    /* R1870  - AIF2TX2MIX Input 4 Source */
+	{ 0x0000074F, 0x0080 },    /* R1871  - AIF2TX2MIX Input 4 Volume */
+	{ 0x00000750, 0x0000 },    /* R1872  - AIF2TX3MIX Input 1 Source */
+	{ 0x00000751, 0x0080 },    /* R1873  - AIF2TX3MIX Input 1 Volume */
+	{ 0x00000752, 0x0000 },    /* R1874  - AIF2TX3MIX Input 2 Source */
+	{ 0x00000753, 0x0080 },    /* R1875  - AIF2TX3MIX Input 2 Volume */
+	{ 0x00000754, 0x0000 },    /* R1876  - AIF2TX3MIX Input 3 Source */
+	{ 0x00000755, 0x0080 },    /* R1877  - AIF2TX3MIX Input 3 Volume */
+	{ 0x00000756, 0x0000 },    /* R1878  - AIF2TX3MIX Input 4 Source */
+	{ 0x00000757, 0x0080 },    /* R1879  - AIF2TX3MIX Input 4 Volume */
+	{ 0x00000758, 0x0000 },    /* R1880  - AIF2TX4MIX Input 1 Source */
+	{ 0x00000759, 0x0080 },    /* R1881  - AIF2TX4MIX Input 1 Volume */
+	{ 0x0000075A, 0x0000 },    /* R1882  - AIF2TX4MIX Input 2 Source */
+	{ 0x0000075B, 0x0080 },    /* R1883  - AIF2TX4MIX Input 2 Volume */
+	{ 0x0000075C, 0x0000 },    /* R1884  - AIF2TX4MIX Input 3 Source */
+	{ 0x0000075D, 0x0080 },    /* R1885  - AIF2TX4MIX Input 3 Volume */
+	{ 0x0000075E, 0x0000 },    /* R1886  - AIF2TX4MIX Input 4 Source */
+	{ 0x0000075F, 0x0080 },    /* R1887  - AIF2TX4MIX Input 4 Volume */
+	{ 0x00000760, 0x0000 },    /* R1888  - AIF2TX5MIX Input 1 Source */
+	{ 0x00000761, 0x0080 },    /* R1889  - AIF2TX5MIX Input 1 Volume */
+	{ 0x00000762, 0x0000 },    /* R1890  - AIF2TX5MIX Input 2 Source */
+	{ 0x00000763, 0x0080 },    /* R1891  - AIF2TX5MIX Input 2 Volume */
+	{ 0x00000764, 0x0000 },    /* R1892  - AIF2TX5MIX Input 3 Source */
+	{ 0x00000765, 0x0080 },    /* R1893  - AIF2TX5MIX Input 3 Volume */
+	{ 0x00000766, 0x0000 },    /* R1894  - AIF2TX5MIX Input 4 Source */
+	{ 0x00000767, 0x0080 },    /* R1895  - AIF2TX5MIX Input 4 Volume */
+	{ 0x00000768, 0x0000 },    /* R1896  - AIF2TX6MIX Input 1 Source */
+	{ 0x00000769, 0x0080 },    /* R1897  - AIF2TX6MIX Input 1 Volume */
+	{ 0x0000076A, 0x0000 },    /* R1898  - AIF2TX6MIX Input 2 Source */
+	{ 0x0000076B, 0x0080 },    /* R1899  - AIF2TX6MIX Input 2 Volume */
+	{ 0x0000076C, 0x0000 },    /* R1900  - AIF2TX6MIX Input 3 Source */
+	{ 0x0000076D, 0x0080 },    /* R1901  - AIF2TX6MIX Input 3 Volume */
+	{ 0x0000076E, 0x0000 },    /* R1902  - AIF2TX6MIX Input 4 Source */
+	{ 0x0000076F, 0x0080 },    /* R1903  - AIF2TX6MIX Input 4 Volume */
+	{ 0x00000780, 0x0000 },    /* R1920  - AIF3TX1MIX Input 1 Source */
+	{ 0x00000781, 0x0080 },    /* R1921  - AIF3TX1MIX Input 1 Volume */
+	{ 0x00000782, 0x0000 },    /* R1922  - AIF3TX1MIX Input 2 Source */
+	{ 0x00000783, 0x0080 },    /* R1923  - AIF3TX1MIX Input 2 Volume */
+	{ 0x00000784, 0x0000 },    /* R1924  - AIF3TX1MIX Input 3 Source */
+	{ 0x00000785, 0x0080 },    /* R1925  - AIF3TX1MIX Input 3 Volume */
+	{ 0x00000786, 0x0000 },    /* R1926  - AIF3TX1MIX Input 4 Source */
+	{ 0x00000787, 0x0080 },    /* R1927  - AIF3TX1MIX Input 4 Volume */
+	{ 0x00000788, 0x0000 },    /* R1928  - AIF3TX2MIX Input 1 Source */
+	{ 0x00000789, 0x0080 },    /* R1929  - AIF3TX2MIX Input 1 Volume */
+	{ 0x0000078A, 0x0000 },    /* R1930  - AIF3TX2MIX Input 2 Source */
+	{ 0x0000078B, 0x0080 },    /* R1931  - AIF3TX2MIX Input 2 Volume */
+	{ 0x0000078C, 0x0000 },    /* R1932  - AIF3TX2MIX Input 3 Source */
+	{ 0x0000078D, 0x0080 },    /* R1933  - AIF3TX2MIX Input 3 Volume */
+	{ 0x0000078E, 0x0000 },    /* R1934  - AIF3TX2MIX Input 4 Source */
+	{ 0x0000078F, 0x0080 },    /* R1935  - AIF3TX2MIX Input 4 Volume */
+	{ 0x00000880, 0x0000 },    /* R2176  - EQ1MIX Input 1 Source */
+	{ 0x00000881, 0x0080 },    /* R2177  - EQ1MIX Input 1 Volume */
+	{ 0x00000882, 0x0000 },    /* R2178  - EQ1MIX Input 2 Source */
+	{ 0x00000883, 0x0080 },    /* R2179  - EQ1MIX Input 2 Volume */
+	{ 0x00000884, 0x0000 },    /* R2180  - EQ1MIX Input 3 Source */
+	{ 0x00000885, 0x0080 },    /* R2181  - EQ1MIX Input 3 Volume */
+	{ 0x00000886, 0x0000 },    /* R2182  - EQ1MIX Input 4 Source */
+	{ 0x00000887, 0x0080 },    /* R2183  - EQ1MIX Input 4 Volume */
+	{ 0x00000888, 0x0000 },    /* R2184  - EQ2MIX Input 1 Source */
+	{ 0x00000889, 0x0080 },    /* R2185  - EQ2MIX Input 1 Volume */
+	{ 0x0000088A, 0x0000 },    /* R2186  - EQ2MIX Input 2 Source */
+	{ 0x0000088B, 0x0080 },    /* R2187  - EQ2MIX Input 2 Volume */
+	{ 0x0000088C, 0x0000 },    /* R2188  - EQ2MIX Input 3 Source */
+	{ 0x0000088D, 0x0080 },    /* R2189  - EQ2MIX Input 3 Volume */
+	{ 0x0000088E, 0x0000 },    /* R2190  - EQ2MIX Input 4 Source */
+	{ 0x0000088F, 0x0080 },    /* R2191  - EQ2MIX Input 4 Volume */
+	{ 0x000008C0, 0x0000 },    /* R2240  - DRC1LMIX Input 1 Source */
+	{ 0x000008C1, 0x0080 },    /* R2241  - DRC1LMIX Input 1 Volume */
+	{ 0x000008C2, 0x0000 },    /* R2242  - DRC1LMIX Input 2 Source */
+	{ 0x000008C3, 0x0080 },    /* R2243  - DRC1LMIX Input 2 Volume */
+	{ 0x000008C4, 0x0000 },    /* R2244  - DRC1LMIX Input 3 Source */
+	{ 0x000008C5, 0x0080 },    /* R2245  - DRC1LMIX Input 3 Volume */
+	{ 0x000008C6, 0x0000 },    /* R2246  - DRC1LMIX Input 4 Source */
+	{ 0x000008C7, 0x0080 },    /* R2247  - DRC1LMIX Input 4 Volume */
+	{ 0x000008C8, 0x0000 },    /* R2248  - DRC1RMIX Input 1 Source */
+	{ 0x000008C9, 0x0080 },    /* R2249  - DRC1RMIX Input 1 Volume */
+	{ 0x000008CA, 0x0000 },    /* R2250  - DRC1RMIX Input 2 Source */
+	{ 0x000008CB, 0x0080 },    /* R2251  - DRC1RMIX Input 2 Volume */
+	{ 0x000008CC, 0x0000 },    /* R2252  - DRC1RMIX Input 3 Source */
+	{ 0x000008CD, 0x0080 },    /* R2253  - DRC1RMIX Input 3 Volume */
+	{ 0x000008CE, 0x0000 },    /* R2254  - DRC1RMIX Input 4 Source */
+	{ 0x000008CF, 0x0080 },    /* R2255  - DRC1RMIX Input 4 Volume */
+	{ 0x000008D0, 0x0000 },    /* R2256  - DRC2LMIX Input 1 Source */
+	{ 0x000008D1, 0x0080 },    /* R2257  - DRC2LMIX Input 1 Volume */
+	{ 0x000008D2, 0x0000 },    /* R2258  - DRC2LMIX Input 2 Source */
+	{ 0x000008D3, 0x0080 },    /* R2259  - DRC2LMIX Input 2 Volume */
+	{ 0x000008D4, 0x0000 },    /* R2260  - DRC2LMIX Input 3 Source */
+	{ 0x000008D5, 0x0080 },    /* R2261  - DRC2LMIX Input 3 Volume */
+	{ 0x000008D6, 0x0000 },    /* R2262  - DRC2LMIX Input 4 Source */
+	{ 0x000008D7, 0x0080 },    /* R2263  - DRC2LMIX Input 4 Volume */
+	{ 0x000008D8, 0x0000 },    /* R2264  - DRC2RMIX Input 1 Source */
+	{ 0x000008D9, 0x0080 },    /* R2265  - DRC2RMIX Input 1 Volume */
+	{ 0x000008DA, 0x0000 },    /* R2266  - DRC2RMIX Input 2 Source */
+	{ 0x000008DB, 0x0080 },    /* R2267  - DRC2RMIX Input 2 Volume */
+	{ 0x000008DC, 0x0000 },    /* R2268  - DRC2RMIX Input 3 Source */
+	{ 0x000008DD, 0x0080 },    /* R2269  - DRC2RMIX Input 3 Volume */
+	{ 0x000008DE, 0x0000 },    /* R2270  - DRC2RMIX Input 4 Source */
+	{ 0x000008DF, 0x0080 },    /* R2271  - DRC2RMIX Input 4 Volume */
+	{ 0x00000900, 0x0000 },    /* R2304  - HPLP1MIX Input 1 Source */
+	{ 0x00000901, 0x0080 },    /* R2305  - HPLP1MIX Input 1 Volume */
+	{ 0x00000902, 0x0000 },    /* R2306  - HPLP1MIX Input 2 Source */
+	{ 0x00000903, 0x0080 },    /* R2307  - HPLP1MIX Input 2 Volume */
+	{ 0x00000904, 0x0000 },    /* R2308  - HPLP1MIX Input 3 Source */
+	{ 0x00000905, 0x0080 },    /* R2309  - HPLP1MIX Input 3 Volume */
+	{ 0x00000906, 0x0000 },    /* R2310  - HPLP1MIX Input 4 Source */
+	{ 0x00000907, 0x0080 },    /* R2311  - HPLP1MIX Input 4 Volume */
+	{ 0x00000908, 0x0000 },    /* R2312  - HPLP2MIX Input 1 Source */
+	{ 0x00000909, 0x0080 },    /* R2313  - HPLP2MIX Input 1 Volume */
+	{ 0x0000090A, 0x0000 },    /* R2314  - HPLP2MIX Input 2 Source */
+	{ 0x0000090B, 0x0080 },    /* R2315  - HPLP2MIX Input 2 Volume */
+	{ 0x0000090C, 0x0000 },    /* R2316  - HPLP2MIX Input 3 Source */
+	{ 0x0000090D, 0x0080 },    /* R2317  - HPLP2MIX Input 3 Volume */
+	{ 0x0000090E, 0x0000 },    /* R2318  - HPLP2MIX Input 4 Source */
+	{ 0x0000090F, 0x0080 },    /* R2319  - HPLP2MIX Input 4 Volume */
+	{ 0x00000910, 0x0000 },    /* R2320  - HPLP3MIX Input 1 Source */
+	{ 0x00000911, 0x0080 },    /* R2321  - HPLP3MIX Input 1 Volume */
+	{ 0x00000912, 0x0000 },    /* R2322  - HPLP3MIX Input 2 Source */
+	{ 0x00000913, 0x0080 },    /* R2323  - HPLP3MIX Input 2 Volume */
+	{ 0x00000914, 0x0000 },    /* R2324  - HPLP3MIX Input 3 Source */
+	{ 0x00000915, 0x0080 },    /* R2325  - HPLP3MIX Input 3 Volume */
+	{ 0x00000916, 0x0000 },    /* R2326  - HPLP3MIX Input 4 Source */
+	{ 0x00000917, 0x0080 },    /* R2327  - HPLP3MIX Input 4 Volume */
+	{ 0x00000918, 0x0000 },    /* R2328  - HPLP4MIX Input 1 Source */
+	{ 0x00000919, 0x0080 },    /* R2329  - HPLP4MIX Input 1 Volume */
+	{ 0x0000091A, 0x0000 },    /* R2330  - HPLP4MIX Input 2 Source */
+	{ 0x0000091B, 0x0080 },    /* R2331  - HPLP4MIX Input 2 Volume */
+	{ 0x0000091C, 0x0000 },    /* R2332  - HPLP4MIX Input 3 Source */
+	{ 0x0000091D, 0x0080 },    /* R2333  - HPLP4MIX Input 3 Volume */
+	{ 0x0000091E, 0x0000 },    /* R2334  - HPLP4MIX Input 4 Source */
+	{ 0x0000091F, 0x0080 },    /* R2335  - HPLP4MIX Input 4 Volume */
+	{ 0x00000980, 0x0000 },    /* R2432  - DSP2LMIX Input 1 Source */
+	{ 0x00000981, 0x0080 },    /* R2433  - DSP2LMIX Input 1 Volume */
+	{ 0x00000982, 0x0000 },    /* R2434  - DSP2LMIX Input 2 Source */
+	{ 0x00000983, 0x0080 },    /* R2435  - DSP2LMIX Input 2 Volume */
+	{ 0x00000984, 0x0000 },    /* R2436  - DSP2LMIX Input 3 Source */
+	{ 0x00000985, 0x0080 },    /* R2437  - DSP2LMIX Input 3 Volume */
+	{ 0x00000986, 0x0000 },    /* R2438  - DSP2LMIX Input 4 Source */
+	{ 0x00000987, 0x0080 },    /* R2439  - DSP2LMIX Input 4 Volume */
+	{ 0x00000988, 0x0000 },    /* R2440  - DSP2RMIX Input 1 Source */
+	{ 0x00000989, 0x0080 },    /* R2441  - DSP2RMIX Input 1 Volume */
+	{ 0x0000098A, 0x0000 },    /* R2442  - DSP2RMIX Input 2 Source */
+	{ 0x0000098B, 0x0080 },    /* R2443  - DSP2RMIX Input 2 Volume */
+	{ 0x0000098C, 0x0000 },    /* R2444  - DSP2RMIX Input 3 Source */
+	{ 0x0000098D, 0x0080 },    /* R2445  - DSP2RMIX Input 3 Volume */
+	{ 0x0000098E, 0x0000 },    /* R2446  - DSP2RMIX Input 4 Source */
+	{ 0x0000098F, 0x0080 },    /* R2447  - DSP2RMIX Input 4 Volume */
+	{ 0x00000990, 0x0000 },    /* R2448  - DSP2AUX1MIX Input 1 Source */
+	{ 0x00000998, 0x0000 },    /* R2456  - DSP2AUX2MIX Input 1 Source */
+	{ 0x000009A0, 0x0000 },    /* R2464  - DSP2AUX3MIX Input 1 Source */
+	{ 0x000009A8, 0x0000 },    /* R2472  - DSP2AUX4MIX Input 1 Source */
+	{ 0x000009B0, 0x0000 },    /* R2480  - DSP2AUX5MIX Input 1 Source */
+	{ 0x000009B8, 0x0000 },    /* R2488  - DSP2AUX6MIX Input 1 Source */
+	{ 0x000009C0, 0x0000 },    /* R2496  - DSP3LMIX Input 1 Source */
+	{ 0x000009C1, 0x0080 },    /* R2497  - DSP3LMIX Input 1 Volume */
+	{ 0x000009C2, 0x0000 },    /* R2498  - DSP3LMIX Input 2 Source */
+	{ 0x000009C3, 0x0080 },    /* R2499  - DSP3LMIX Input 2 Volume */
+	{ 0x000009C4, 0x0000 },    /* R2500  - DSP3LMIX Input 3 Source */
+	{ 0x000009C5, 0x0080 },    /* R2501  - DSP3LMIX Input 3 Volume */
+	{ 0x000009C6, 0x0000 },    /* R2502  - DSP3LMIX Input 4 Source */
+	{ 0x000009C7, 0x0080 },    /* R2503  - DSP3LMIX Input 4 Volume */
+	{ 0x000009C8, 0x0000 },    /* R2504  - DSP3RMIX Input 1 Source */
+	{ 0x000009C9, 0x0080 },    /* R2505  - DSP3RMIX Input 1 Volume */
+	{ 0x000009CA, 0x0000 },    /* R2506  - DSP3RMIX Input 2 Source */
+	{ 0x000009CB, 0x0080 },    /* R2507  - DSP3RMIX Input 2 Volume */
+	{ 0x000009CC, 0x0000 },    /* R2508  - DSP3RMIX Input 3 Source */
+	{ 0x000009CD, 0x0080 },    /* R2509  - DSP3RMIX Input 3 Volume */
+	{ 0x000009CE, 0x0000 },    /* R2510  - DSP3RMIX Input 4 Source */
+	{ 0x000009CF, 0x0080 },    /* R2511  - DSP3RMIX Input 4 Volume */
+	{ 0x000009D0, 0x0000 },    /* R2512  - DSP3AUX1MIX Input 1 Source */
+	{ 0x000009D8, 0x0000 },    /* R2520  - DSP3AUX2MIX Input 1 Source */
+	{ 0x000009E0, 0x0000 },    /* R2528  - DSP3AUX3MIX Input 1 Source */
+	{ 0x000009E8, 0x0000 },    /* R2536  - DSP3AUX4MIX Input 1 Source */
+	{ 0x000009F0, 0x0000 },    /* R2544  - DSP3AUX5MIX Input 1 Source */
+	{ 0x000009F8, 0x0000 },    /* R2552  - DSP3AUX6MIX Input 1 Source */
+	{ 0x00000A80, 0x0000 },    /* R2688  - ASRC1LMIX Input 1 Source */
+	{ 0x00000A88, 0x0000 },    /* R2696  - ASRC1RMIX Input 1 Source */
+	{ 0x00000A90, 0x0000 },    /* R2704  - ASRC2LMIX Input 1 Source */
+	{ 0x00000A98, 0x0000 },    /* R2712  - ASRC2RMIX Input 1 Source */
+	{ 0x00000B00, 0x0000 },    /* R2816  - ISRC1DEC1MIX Input 1 Source */
+	{ 0x00000B08, 0x0000 },    /* R2824  - ISRC1DEC2MIX Input 1 Source */
+	{ 0x00000B10, 0x0000 },    /* R2832  - ISRC1DEC3MIX Input 1 Source */
+	{ 0x00000B18, 0x0000 },    /* R2840  - ISRC1DEC4MIX Input 1 Source */
+	{ 0x00000B20, 0x0000 },    /* R2848  - ISRC1INT1MIX Input 1 Source */
+	{ 0x00000B28, 0x0000 },    /* R2856  - ISRC1INT2MIX Input 1 Source */
+	{ 0x00000B30, 0x0000 },    /* R2864  - ISRC1INT3MIX Input 1 Source */
+	{ 0x00000B38, 0x0000 },    /* R2872  - ISRC1INT4MIX Input 1 Source */
+	{ 0x00000B40, 0x0000 },    /* R2880  - ISRC2DEC1MIX Input 1 Source */
+	{ 0x00000B48, 0x0000 },    /* R2888  - ISRC2DEC2MIX Input 1 Source */
+	{ 0x00000B50, 0x0000 },    /* R2896  - ISRC2DEC3MIX Input 1 Source */
+	{ 0x00000B58, 0x0000 },    /* R2904  - ISRC2DEC4MIX Input 1 Source */
+	{ 0x00000B60, 0x0000 },    /* R2912  - ISRC2INT1MIX Input 1 Source */
+	{ 0x00000B68, 0x0000 },    /* R2920  - ISRC2INT2MIX Input 1 Source */
+	{ 0x00000B70, 0x0000 },    /* R2928  - ISRC2INT3MIX Input 1 Source */
+	{ 0x00000B78, 0x0000 },    /* R2936  - ISRC2INT4MIX Input 1 Source */
+	{ 0x00000B80, 0x0000 },    /* R2944  - ISRC3DEC1MIX Input 1 Source */
+	{ 0x00000B88, 0x0000 },    /* R2952  - ISRC3DEC2MIX Input 1 Source */
+	{ 0x00000B90, 0x0000 },    /* R2960  - ISRC3DEC3MIX Input 1 Source */
+	{ 0x00000B98, 0x0000 },    /* R2968  - ISRC3DEC4MIX Input 1 Source */
+	{ 0x00000BA0, 0x0000 },    /* R2976  - ISRC3INT1MIX Input 1 Source */
+	{ 0x00000BA8, 0x0000 },    /* R2984  - ISRC3INT2MIX Input 1 Source */
+	{ 0x00000BB0, 0x0000 },    /* R2992  - ISRC3INT3MIX Input 1 Source */
+	{ 0x00000BB8, 0x0000 },    /* R3000  - ISRC3INT4MIX Input 1 Source */
+	{ 0x00000C00, 0xA101 },    /* R3072  - GPIO1 CTRL */
+	{ 0x00000C01, 0xA101 },    /* R3073  - GPIO2 CTRL */
+	{ 0x00000C0F, 0x0400 },    /* R3087  - IRQ CTRL 1 */
+	{ 0x00000C10, 0x1000 },    /* R3088  - GPIO Debounce Config */
+	{ 0x00000C20, 0x0002 },    /* R3104  - Misc Pad Ctrl 1 */
+	{ 0x00000C21, 0x8001 },    /* R3105  - Misc Pad Ctrl 2 */
+	{ 0x00000C22, 0x0000 },    /* R3106  - Misc Pad Ctrl 3 */
+	{ 0x00000C23, 0x0000 },    /* R3107  - Misc Pad Ctrl 4 */
+	{ 0x00000C24, 0x0000 },    /* R3108  - Misc Pad Ctrl 5 */
+	{ 0x00000C25, 0x0000 },    /* R3109  - Misc Pad Ctrl 6 */
+	{ 0x00000C30, 0x0404 },    /* R3120  - Misc Pad Ctrl 7 */
+	{ 0x00000C32, 0x0404 },    /* R3122  - Misc Pad Ctrl 9 */
+	{ 0x00000C33, 0x0404 },    /* R3123  - Misc Pad Ctrl 10 */
+	{ 0x00000C34, 0x0404 },    /* R3124  - Misc Pad Ctrl 11 */
+	{ 0x00000C35, 0x0404 },    /* R3125  - Misc Pad Ctrl 12 */
+	{ 0x00000C36, 0x0400 },    /* R3126  - Misc Pad Ctrl 13 */
+	{ 0x00000C37, 0x0404 },    /* R3127  - Misc Pad Ctrl 14 */
+	{ 0x00000C39, 0x0400 },    /* R3129  - Misc Pad Ctrl 16 */
+	{ 0x00000D08, 0x0007 },    /* R3336  - Interrupt Status 1 Mask */
+	{ 0x00000D09, 0x06FF },    /* R3337  - Interrupt Status 2 Mask */
+	{ 0x00000D0A, 0xCFEF },    /* R3338  - Interrupt Status 3 Mask */
+	{ 0x00000D0B, 0xFFC3 },    /* R3339  - Interrupt Status 4 Mask */
+	{ 0x00000D0C, 0x000B },    /* R3340  - Interrupt Status 5 Mask */
+	{ 0x00000D0D, 0xD005 },    /* R3341  - Interrupt Status 6 Mask */
+	{ 0x00000D0F, 0x0000 },    /* R3343  - Interrupt Control */
+	{ 0x00000D18, 0x0007 },    /* R3352  - IRQ2 Status 1 Mask */
+	{ 0x00000D19, 0x06FF },    /* R3353  - IRQ2 Status 2 Mask */
+	{ 0x00000D1A, 0xCFEF },    /* R3354  - IRQ2 Status 3 Mask */
+	{ 0x00000D1B, 0xFFC3 },    /* R3355  - IRQ2 Status 4 Mask */
+	{ 0x00000D1C, 0x000B },    /* R3356  - IRQ2 Status 5 Mask */
+	{ 0x00000D1D, 0xD005 },    /* R3357  - IRQ2 Status 6 Mask */
+	{ 0x00000D1F, 0x0000 },    /* R3359  - IRQ2 Control */
+	{ 0x00000E00, 0x0000 },    /* R3584  - FX_Ctrl1 */
+	{ 0x00000E10, 0x6318 },    /* R3600  - EQ1_1 */
+	{ 0x00000E11, 0x6300 },    /* R3601  - EQ1_2 */
+	{ 0x00000E12, 0x0FC8 },    /* R3602  - EQ1_3 */
+	{ 0x00000E13, 0x03FE },    /* R3603  - EQ1_4 */
+	{ 0x00000E14, 0x00E0 },    /* R3604  - EQ1_5 */
+	{ 0x00000E15, 0x1EC4 },    /* R3605  - EQ1_6 */
+	{ 0x00000E16, 0xF136 },    /* R3606  - EQ1_7 */
+	{ 0x00000E17, 0x0409 },    /* R3607  - EQ1_8 */
+	{ 0x00000E18, 0x04CC },    /* R3608  - EQ1_9 */
+	{ 0x00000E19, 0x1C9B },    /* R3609  - EQ1_10 */
+	{ 0x00000E1A, 0xF337 },    /* R3610  - EQ1_11 */
+	{ 0x00000E1B, 0x040B },    /* R3611  - EQ1_12 */
+	{ 0x00000E1C, 0x0CBB },    /* R3612  - EQ1_13 */
+	{ 0x00000E1D, 0x16F8 },    /* R3613  - EQ1_14 */
+	{ 0x00000E1E, 0xF7D9 },    /* R3614  - EQ1_15 */
+	{ 0x00000E1F, 0x040A },    /* R3615  - EQ1_16 */
+	{ 0x00000E20, 0x1F14 },    /* R3616  - EQ1_17 */
+	{ 0x00000E21, 0x058C },    /* R3617  - EQ1_18 */
+	{ 0x00000E22, 0x0563 },    /* R3618  - EQ1_19 */
+	{ 0x00000E23, 0x4000 },    /* R3619  - EQ1_20 */
+	{ 0x00000E24, 0x0B75 },    /* R3620  - EQ1_21 */
+	{ 0x00000E26, 0x6318 },    /* R3622  - EQ2_1 */
+	{ 0x00000E27, 0x6300 },    /* R3623  - EQ2_2 */
+	{ 0x00000E28, 0x0FC8 },    /* R3624  - EQ2_3 */
+	{ 0x00000E29, 0x03FE },    /* R3625  - EQ2_4 */
+	{ 0x00000E2A, 0x00E0 },    /* R3626  - EQ2_5 */
+	{ 0x00000E2B, 0x1EC4 },    /* R3627  - EQ2_6 */
+	{ 0x00000E2C, 0xF136 },    /* R3628  - EQ2_7 */
+	{ 0x00000E2D, 0x0409 },    /* R3629  - EQ2_8 */
+	{ 0x00000E2E, 0x04CC },    /* R3630  - EQ2_9 */
+	{ 0x00000E2F, 0x1C9B },    /* R3631  - EQ2_10 */
+	{ 0x00000E30, 0xF337 },    /* R3632  - EQ2_11 */
+	{ 0x00000E31, 0x040B },    /* R3633  - EQ2_12 */
+	{ 0x00000E32, 0x0CBB },    /* R3634  - EQ2_13 */
+	{ 0x00000E33, 0x16F8 },    /* R3635  - EQ2_14 */
+	{ 0x00000E34, 0xF7D9 },    /* R3636  - EQ2_15 */
+	{ 0x00000E35, 0x040A },    /* R3637  - EQ2_16 */
+	{ 0x00000E36, 0x1F14 },    /* R3638  - EQ2_17 */
+	{ 0x00000E37, 0x058C },    /* R3639  - EQ2_18 */
+	{ 0x00000E38, 0x0563 },    /* R3640  - EQ2_19 */
+	{ 0x00000E39, 0x4000 },    /* R3641  - EQ2_20 */
+	{ 0x00000E3A, 0x0B75 },    /* R3642  - EQ2_21 */
+	{ 0x00000E80, 0x0018 },    /* R3712  - DRC1 ctrl1 */
+	{ 0x00000E81, 0x0933 },    /* R3713  - DRC1 ctrl2 */
+	{ 0x00000E82, 0x0018 },    /* R3714  - DRC1 ctrl3 */
+	{ 0x00000E83, 0x0000 },    /* R3715  - DRC1 ctrl4 */
+	{ 0x00000E84, 0x0000 },    /* R3716  - DRC1 ctrl5 */
+	{ 0x00000E89, 0x0018 },    /* R3721  - DRC2 ctrl1 */
+	{ 0x00000E8A, 0x0933 },    /* R3722  - DRC2 ctrl2 */
+	{ 0x00000E8B, 0x0018 },    /* R3723  - DRC2 ctrl3 */
+	{ 0x00000E8C, 0x0000 },    /* R3724  - DRC2 ctrl4 */
+	{ 0x00000E8D, 0x0000 },    /* R3725  - DRC2 ctrl5 */
+	{ 0x00000EC0, 0x0000 },    /* R3776  - HPLPF1_1 */
+	{ 0x00000EC1, 0x0000 },    /* R3777  - HPLPF1_2 */
+	{ 0x00000EC4, 0x0000 },    /* R3780  - HPLPF2_1 */
+	{ 0x00000EC5, 0x0000 },    /* R3781  - HPLPF2_2 */
+	{ 0x00000EC8, 0x0000 },    /* R3784  - HPLPF3_1 */
+	{ 0x00000EC9, 0x0000 },    /* R3785  - HPLPF3_2 */
+	{ 0x00000ECC, 0x0000 },    /* R3788  - HPLPF4_1 */
+	{ 0x00000ECD, 0x0000 },    /* R3789  - HPLPF4_2 */
+	{ 0x00000EE0, 0x0000 },    /* R3808  - ASRC_ENABLE */
+	{ 0x00000EE2, 0x0000 },    /* R3810  - ASRC_RATE1 */
+	{ 0x00000EE3, 0x4000 },    /* R3811  - ASRC_RATE2 */
+	{ 0x00000EF0, 0x0000 },    /* R3824  - ISRC 1 CTRL 1 */
+	{ 0x00000EF1, 0x0000 },    /* R3825  - ISRC 1 CTRL 2 */
+	{ 0x00000EF2, 0x0000 },    /* R3826  - ISRC 1 CTRL 3 */
+	{ 0x00000EF3, 0x0000 },    /* R3827  - ISRC 2 CTRL 1 */
+	{ 0x00000EF4, 0x0000 },    /* R3828  - ISRC 2 CTRL 2 */
+	{ 0x00000EF5, 0x0000 },    /* R3829  - ISRC 2 CTRL 3 */
+	{ 0x00000EF6, 0x0000 },    /* R3830  - ISRC 3 CTRL 1 */
+	{ 0x00000EF7, 0x0000 },    /* R3831  - ISRC 3 CTRL 2 */
+	{ 0x00000EF8, 0x0000 },    /* R3832  - ISRC 3 CTRL 3 */
+	{ 0x00001200, 0x0010 },    /* R4608  - DSP2 Control 1 */
+	{ 0x00001300, 0x0010 },    /* R4864  - DSP3 Control 1 */
+};
+
+static bool cs47l24_is_adsp_memory(unsigned int reg)
+{
+	switch (reg) {
+	case 0x200000 ... 0x205fff:	/* DSP2 PM */
+	case 0x280000 ... 0x281fff:	/* DSP2 ZM */
+	case 0x290000 ... 0x2a7fff:	/* DSP2 XM */
+	case 0x2a8000 ... 0x2b3fff:	/* DSP2 YM */
+	case 0x300000 ... 0x308fff:	/* DSP3 PM */
+	case 0x380000 ... 0x381fff:	/* DSP3 ZM */
+	case 0x390000 ... 0x3a7fff:	/* DSP3 XM */
+	case 0x3a8000 ... 0x3b3fff:	/* DSP3 YM */
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool cs47l24_readable_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ARIZONA_SOFTWARE_RESET:
+	case ARIZONA_DEVICE_REVISION:
+	case ARIZONA_CTRL_IF_SPI_CFG_1:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_0:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_1:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_2:
+	case ARIZONA_TONE_GENERATOR_1:
+	case ARIZONA_TONE_GENERATOR_2:
+	case ARIZONA_TONE_GENERATOR_3:
+	case ARIZONA_TONE_GENERATOR_4:
+	case ARIZONA_TONE_GENERATOR_5:
+	case ARIZONA_PWM_DRIVE_1:
+	case ARIZONA_PWM_DRIVE_2:
+	case ARIZONA_PWM_DRIVE_3:
+	case ARIZONA_SEQUENCE_CONTROL:
+	case ARIZONA_SAMPLE_RATE_SEQUENCE_SELECT_1:
+	case ARIZONA_SAMPLE_RATE_SEQUENCE_SELECT_2:
+	case ARIZONA_SAMPLE_RATE_SEQUENCE_SELECT_3:
+	case ARIZONA_SAMPLE_RATE_SEQUENCE_SELECT_4:
+	case ARIZONA_COMFORT_NOISE_GENERATOR:
+	case ARIZONA_HAPTICS_CONTROL_1:
+	case ARIZONA_HAPTICS_CONTROL_2:
+	case ARIZONA_HAPTICS_PHASE_1_INTENSITY:
+	case ARIZONA_HAPTICS_PHASE_1_DURATION:
+	case ARIZONA_HAPTICS_PHASE_2_INTENSITY:
+	case ARIZONA_HAPTICS_PHASE_2_DURATION:
+	case ARIZONA_HAPTICS_PHASE_3_INTENSITY:
+	case ARIZONA_HAPTICS_PHASE_3_DURATION:
+	case ARIZONA_HAPTICS_STATUS:
+	case ARIZONA_CLOCK_32K_1:
+	case ARIZONA_SYSTEM_CLOCK_1:
+	case ARIZONA_SAMPLE_RATE_1:
+	case ARIZONA_SAMPLE_RATE_2:
+	case ARIZONA_SAMPLE_RATE_3:
+	case ARIZONA_SAMPLE_RATE_1_STATUS:
+	case ARIZONA_SAMPLE_RATE_2_STATUS:
+	case ARIZONA_SAMPLE_RATE_3_STATUS:
+	case ARIZONA_ASYNC_CLOCK_1:
+	case ARIZONA_ASYNC_SAMPLE_RATE_1:
+	case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS:
+	case ARIZONA_ASYNC_SAMPLE_RATE_2:
+	case ARIZONA_ASYNC_SAMPLE_RATE_2_STATUS:
+	case ARIZONA_OUTPUT_SYSTEM_CLOCK:
+	case ARIZONA_OUTPUT_ASYNC_CLOCK:
+	case ARIZONA_RATE_ESTIMATOR_1:
+	case ARIZONA_RATE_ESTIMATOR_2:
+	case ARIZONA_RATE_ESTIMATOR_3:
+	case ARIZONA_RATE_ESTIMATOR_4:
+	case ARIZONA_RATE_ESTIMATOR_5:
+	case ARIZONA_FLL1_CONTROL_1:
+	case ARIZONA_FLL1_CONTROL_2:
+	case ARIZONA_FLL1_CONTROL_3:
+	case ARIZONA_FLL1_CONTROL_4:
+	case ARIZONA_FLL1_CONTROL_5:
+	case ARIZONA_FLL1_CONTROL_6:
+	case ARIZONA_FLL1_CONTROL_7:
+	case ARIZONA_FLL1_LOOP_FILTER_TEST_1:
+	case ARIZONA_FLL1_NCO_TEST_0:
+	case ARIZONA_FLL1_SYNCHRONISER_1:
+	case ARIZONA_FLL1_SYNCHRONISER_2:
+	case ARIZONA_FLL1_SYNCHRONISER_3:
+	case ARIZONA_FLL1_SYNCHRONISER_4:
+	case ARIZONA_FLL1_SYNCHRONISER_5:
+	case ARIZONA_FLL1_SYNCHRONISER_6:
+	case ARIZONA_FLL1_SYNCHRONISER_7:
+	case ARIZONA_FLL1_SPREAD_SPECTRUM:
+	case ARIZONA_FLL1_GPIO_CLOCK:
+	case ARIZONA_FLL2_CONTROL_1:
+	case ARIZONA_FLL2_CONTROL_2:
+	case ARIZONA_FLL2_CONTROL_3:
+	case ARIZONA_FLL2_CONTROL_4:
+	case ARIZONA_FLL2_CONTROL_5:
+	case ARIZONA_FLL2_CONTROL_6:
+	case ARIZONA_FLL2_CONTROL_7:
+	case ARIZONA_FLL2_LOOP_FILTER_TEST_1:
+	case ARIZONA_FLL2_NCO_TEST_0:
+	case ARIZONA_FLL2_SYNCHRONISER_1:
+	case ARIZONA_FLL2_SYNCHRONISER_2:
+	case ARIZONA_FLL2_SYNCHRONISER_3:
+	case ARIZONA_FLL2_SYNCHRONISER_4:
+	case ARIZONA_FLL2_SYNCHRONISER_5:
+	case ARIZONA_FLL2_SYNCHRONISER_6:
+	case ARIZONA_FLL2_SYNCHRONISER_7:
+	case ARIZONA_FLL2_SPREAD_SPECTRUM:
+	case ARIZONA_FLL2_GPIO_CLOCK:
+	case ARIZONA_MIC_BIAS_CTRL_1:
+	case ARIZONA_MIC_BIAS_CTRL_2:
+	case ARIZONA_HP_CTRL_1L:
+	case ARIZONA_HP_CTRL_1R:
+	case ARIZONA_INPUT_ENABLES:
+	case ARIZONA_INPUT_ENABLES_STATUS:
+	case ARIZONA_INPUT_RATE:
+	case ARIZONA_INPUT_VOLUME_RAMP:
+	case ARIZONA_HPF_CONTROL:
+	case ARIZONA_IN1L_CONTROL:
+	case ARIZONA_ADC_DIGITAL_VOLUME_1L:
+	case ARIZONA_DMIC1L_CONTROL:
+	case ARIZONA_IN1R_CONTROL:
+	case ARIZONA_ADC_DIGITAL_VOLUME_1R:
+	case ARIZONA_DMIC1R_CONTROL:
+	case ARIZONA_IN2L_CONTROL:
+	case ARIZONA_ADC_DIGITAL_VOLUME_2L:
+	case ARIZONA_DMIC2L_CONTROL:
+	case ARIZONA_IN2R_CONTROL:
+	case ARIZONA_ADC_DIGITAL_VOLUME_2R:
+	case ARIZONA_DMIC2R_CONTROL:
+	case ARIZONA_OUTPUT_ENABLES_1:
+	case ARIZONA_OUTPUT_STATUS_1:
+	case ARIZONA_RAW_OUTPUT_STATUS_1:
+	case ARIZONA_OUTPUT_RATE_1:
+	case ARIZONA_OUTPUT_VOLUME_RAMP:
+	case ARIZONA_OUTPUT_PATH_CONFIG_1L:
+	case ARIZONA_DAC_DIGITAL_VOLUME_1L:
+	case ARIZONA_DAC_VOLUME_LIMIT_1L:
+	case ARIZONA_NOISE_GATE_SELECT_1L:
+	case ARIZONA_DAC_DIGITAL_VOLUME_1R:
+	case ARIZONA_DAC_VOLUME_LIMIT_1R:
+	case ARIZONA_NOISE_GATE_SELECT_1R:
+	case ARIZONA_DAC_DIGITAL_VOLUME_4L:
+	case ARIZONA_OUT_VOLUME_4L:
+	case ARIZONA_NOISE_GATE_SELECT_4L:
+	case ARIZONA_DAC_AEC_CONTROL_1:
+	case ARIZONA_NOISE_GATE_CONTROL:
+	case ARIZONA_HP1_SHORT_CIRCUIT_CTRL:
+	case ARIZONA_AIF1_BCLK_CTRL:
+	case ARIZONA_AIF1_TX_PIN_CTRL:
+	case ARIZONA_AIF1_RX_PIN_CTRL:
+	case ARIZONA_AIF1_RATE_CTRL:
+	case ARIZONA_AIF1_FORMAT:
+	case ARIZONA_AIF1_RX_BCLK_RATE:
+	case ARIZONA_AIF1_FRAME_CTRL_1:
+	case ARIZONA_AIF1_FRAME_CTRL_2:
+	case ARIZONA_AIF1_FRAME_CTRL_3:
+	case ARIZONA_AIF1_FRAME_CTRL_4:
+	case ARIZONA_AIF1_FRAME_CTRL_5:
+	case ARIZONA_AIF1_FRAME_CTRL_6:
+	case ARIZONA_AIF1_FRAME_CTRL_7:
+	case ARIZONA_AIF1_FRAME_CTRL_8:
+	case ARIZONA_AIF1_FRAME_CTRL_9:
+	case ARIZONA_AIF1_FRAME_CTRL_10:
+	case ARIZONA_AIF1_FRAME_CTRL_11:
+	case ARIZONA_AIF1_FRAME_CTRL_12:
+	case ARIZONA_AIF1_FRAME_CTRL_13:
+	case ARIZONA_AIF1_FRAME_CTRL_14:
+	case ARIZONA_AIF1_FRAME_CTRL_15:
+	case ARIZONA_AIF1_FRAME_CTRL_16:
+	case ARIZONA_AIF1_FRAME_CTRL_17:
+	case ARIZONA_AIF1_FRAME_CTRL_18:
+	case ARIZONA_AIF1_TX_ENABLES:
+	case ARIZONA_AIF1_RX_ENABLES:
+	case ARIZONA_AIF2_BCLK_CTRL:
+	case ARIZONA_AIF2_TX_PIN_CTRL:
+	case ARIZONA_AIF2_RX_PIN_CTRL:
+	case ARIZONA_AIF2_RATE_CTRL:
+	case ARIZONA_AIF2_FORMAT:
+	case ARIZONA_AIF2_RX_BCLK_RATE:
+	case ARIZONA_AIF2_FRAME_CTRL_1:
+	case ARIZONA_AIF2_FRAME_CTRL_2:
+	case ARIZONA_AIF2_FRAME_CTRL_3:
+	case ARIZONA_AIF2_FRAME_CTRL_4:
+	case ARIZONA_AIF2_FRAME_CTRL_5:
+	case ARIZONA_AIF2_FRAME_CTRL_6:
+	case ARIZONA_AIF2_FRAME_CTRL_7:
+	case ARIZONA_AIF2_FRAME_CTRL_8:
+	case ARIZONA_AIF2_FRAME_CTRL_11:
+	case ARIZONA_AIF2_FRAME_CTRL_12:
+	case ARIZONA_AIF2_FRAME_CTRL_13:
+	case ARIZONA_AIF2_FRAME_CTRL_14:
+	case ARIZONA_AIF2_FRAME_CTRL_15:
+	case ARIZONA_AIF2_FRAME_CTRL_16:
+	case ARIZONA_AIF2_TX_ENABLES:
+	case ARIZONA_AIF2_RX_ENABLES:
+	case ARIZONA_AIF3_BCLK_CTRL:
+	case ARIZONA_AIF3_TX_PIN_CTRL:
+	case ARIZONA_AIF3_RX_PIN_CTRL:
+	case ARIZONA_AIF3_RATE_CTRL:
+	case ARIZONA_AIF3_FORMAT:
+	case ARIZONA_AIF3_RX_BCLK_RATE:
+	case ARIZONA_AIF3_FRAME_CTRL_1:
+	case ARIZONA_AIF3_FRAME_CTRL_2:
+	case ARIZONA_AIF3_FRAME_CTRL_3:
+	case ARIZONA_AIF3_FRAME_CTRL_4:
+	case ARIZONA_AIF3_FRAME_CTRL_11:
+	case ARIZONA_AIF3_FRAME_CTRL_12:
+	case ARIZONA_AIF3_TX_ENABLES:
+	case ARIZONA_AIF3_RX_ENABLES:
+	case ARIZONA_PWM1MIX_INPUT_1_SOURCE:
+	case ARIZONA_PWM1MIX_INPUT_1_VOLUME:
+	case ARIZONA_PWM1MIX_INPUT_2_SOURCE:
+	case ARIZONA_PWM1MIX_INPUT_2_VOLUME:
+	case ARIZONA_PWM1MIX_INPUT_3_SOURCE:
+	case ARIZONA_PWM1MIX_INPUT_3_VOLUME:
+	case ARIZONA_PWM1MIX_INPUT_4_SOURCE:
+	case ARIZONA_PWM1MIX_INPUT_4_VOLUME:
+	case ARIZONA_PWM2MIX_INPUT_1_SOURCE:
+	case ARIZONA_PWM2MIX_INPUT_1_VOLUME:
+	case ARIZONA_PWM2MIX_INPUT_2_SOURCE:
+	case ARIZONA_PWM2MIX_INPUT_2_VOLUME:
+	case ARIZONA_PWM2MIX_INPUT_3_SOURCE:
+	case ARIZONA_PWM2MIX_INPUT_3_VOLUME:
+	case ARIZONA_PWM2MIX_INPUT_4_SOURCE:
+	case ARIZONA_PWM2MIX_INPUT_4_VOLUME:
+	case ARIZONA_OUT1LMIX_INPUT_1_SOURCE:
+	case ARIZONA_OUT1LMIX_INPUT_1_VOLUME:
+	case ARIZONA_OUT1LMIX_INPUT_2_SOURCE:
+	case ARIZONA_OUT1LMIX_INPUT_2_VOLUME:
+	case ARIZONA_OUT1LMIX_INPUT_3_SOURCE:
+	case ARIZONA_OUT1LMIX_INPUT_3_VOLUME:
+	case ARIZONA_OUT1LMIX_INPUT_4_SOURCE:
+	case ARIZONA_OUT1LMIX_INPUT_4_VOLUME:
+	case ARIZONA_OUT1RMIX_INPUT_1_SOURCE:
+	case ARIZONA_OUT1RMIX_INPUT_1_VOLUME:
+	case ARIZONA_OUT1RMIX_INPUT_2_SOURCE:
+	case ARIZONA_OUT1RMIX_INPUT_2_VOLUME:
+	case ARIZONA_OUT1RMIX_INPUT_3_SOURCE:
+	case ARIZONA_OUT1RMIX_INPUT_3_VOLUME:
+	case ARIZONA_OUT1RMIX_INPUT_4_SOURCE:
+	case ARIZONA_OUT1RMIX_INPUT_4_VOLUME:
+	case ARIZONA_OUT4LMIX_INPUT_1_SOURCE:
+	case ARIZONA_OUT4LMIX_INPUT_1_VOLUME:
+	case ARIZONA_OUT4LMIX_INPUT_2_SOURCE:
+	case ARIZONA_OUT4LMIX_INPUT_2_VOLUME:
+	case ARIZONA_OUT4LMIX_INPUT_3_SOURCE:
+	case ARIZONA_OUT4LMIX_INPUT_3_VOLUME:
+	case ARIZONA_OUT4LMIX_INPUT_4_SOURCE:
+	case ARIZONA_OUT4LMIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX1MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX1MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX1MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX1MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX1MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX1MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX1MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX1MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX2MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX2MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX2MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX2MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX2MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX2MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX2MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX2MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX3MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX3MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX3MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX3MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX3MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX3MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX3MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX3MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX4MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX4MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX4MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX4MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX4MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX4MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX4MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX4MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX5MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX5MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX5MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX5MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX5MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX5MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX5MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX5MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX6MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX6MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX6MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX6MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX6MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX6MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX6MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX6MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX7MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX7MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX7MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX7MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX7MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX7MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX7MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX7MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF1TX8MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF1TX8MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF1TX8MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF1TX8MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF1TX8MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF1TX8MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF1TX8MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF1TX8MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX1MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX1MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX1MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX1MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX1MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX1MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX1MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX1MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX2MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX2MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX2MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX2MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX2MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX2MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX2MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX2MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX3MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX3MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX3MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX3MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX3MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX3MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX3MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX3MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX4MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX4MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX4MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX4MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX4MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX4MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX4MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX4MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX5MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX5MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX5MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX5MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX5MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX5MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX5MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX5MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF2TX6MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF2TX6MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF2TX6MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF2TX6MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF2TX6MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF2TX6MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF2TX6MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF2TX6MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF3TX1MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF3TX1MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF3TX1MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF3TX1MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF3TX1MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF3TX1MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF3TX1MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF3TX1MIX_INPUT_4_VOLUME:
+	case ARIZONA_AIF3TX2MIX_INPUT_1_SOURCE:
+	case ARIZONA_AIF3TX2MIX_INPUT_1_VOLUME:
+	case ARIZONA_AIF3TX2MIX_INPUT_2_SOURCE:
+	case ARIZONA_AIF3TX2MIX_INPUT_2_VOLUME:
+	case ARIZONA_AIF3TX2MIX_INPUT_3_SOURCE:
+	case ARIZONA_AIF3TX2MIX_INPUT_3_VOLUME:
+	case ARIZONA_AIF3TX2MIX_INPUT_4_SOURCE:
+	case ARIZONA_AIF3TX2MIX_INPUT_4_VOLUME:
+	case ARIZONA_EQ1MIX_INPUT_1_SOURCE:
+	case ARIZONA_EQ1MIX_INPUT_1_VOLUME:
+	case ARIZONA_EQ1MIX_INPUT_2_SOURCE:
+	case ARIZONA_EQ1MIX_INPUT_2_VOLUME:
+	case ARIZONA_EQ1MIX_INPUT_3_SOURCE:
+	case ARIZONA_EQ1MIX_INPUT_3_VOLUME:
+	case ARIZONA_EQ1MIX_INPUT_4_SOURCE:
+	case ARIZONA_EQ1MIX_INPUT_4_VOLUME:
+	case ARIZONA_EQ2MIX_INPUT_1_SOURCE:
+	case ARIZONA_EQ2MIX_INPUT_1_VOLUME:
+	case ARIZONA_EQ2MIX_INPUT_2_SOURCE:
+	case ARIZONA_EQ2MIX_INPUT_2_VOLUME:
+	case ARIZONA_EQ2MIX_INPUT_3_SOURCE:
+	case ARIZONA_EQ2MIX_INPUT_3_VOLUME:
+	case ARIZONA_EQ2MIX_INPUT_4_SOURCE:
+	case ARIZONA_EQ2MIX_INPUT_4_VOLUME:
+	case ARIZONA_DRC1LMIX_INPUT_1_SOURCE:
+	case ARIZONA_DRC1LMIX_INPUT_1_VOLUME:
+	case ARIZONA_DRC1LMIX_INPUT_2_SOURCE:
+	case ARIZONA_DRC1LMIX_INPUT_2_VOLUME:
+	case ARIZONA_DRC1LMIX_INPUT_3_SOURCE:
+	case ARIZONA_DRC1LMIX_INPUT_3_VOLUME:
+	case ARIZONA_DRC1LMIX_INPUT_4_SOURCE:
+	case ARIZONA_DRC1LMIX_INPUT_4_VOLUME:
+	case ARIZONA_DRC1RMIX_INPUT_1_SOURCE:
+	case ARIZONA_DRC1RMIX_INPUT_1_VOLUME:
+	case ARIZONA_DRC1RMIX_INPUT_2_SOURCE:
+	case ARIZONA_DRC1RMIX_INPUT_2_VOLUME:
+	case ARIZONA_DRC1RMIX_INPUT_3_SOURCE:
+	case ARIZONA_DRC1RMIX_INPUT_3_VOLUME:
+	case ARIZONA_DRC1RMIX_INPUT_4_SOURCE:
+	case ARIZONA_DRC1RMIX_INPUT_4_VOLUME:
+	case ARIZONA_DRC2LMIX_INPUT_1_SOURCE:
+	case ARIZONA_DRC2LMIX_INPUT_1_VOLUME:
+	case ARIZONA_DRC2LMIX_INPUT_2_SOURCE:
+	case ARIZONA_DRC2LMIX_INPUT_2_VOLUME:
+	case ARIZONA_DRC2LMIX_INPUT_3_SOURCE:
+	case ARIZONA_DRC2LMIX_INPUT_3_VOLUME:
+	case ARIZONA_DRC2LMIX_INPUT_4_SOURCE:
+	case ARIZONA_DRC2LMIX_INPUT_4_VOLUME:
+	case ARIZONA_DRC2RMIX_INPUT_1_SOURCE:
+	case ARIZONA_DRC2RMIX_INPUT_1_VOLUME:
+	case ARIZONA_DRC2RMIX_INPUT_2_SOURCE:
+	case ARIZONA_DRC2RMIX_INPUT_2_VOLUME:
+	case ARIZONA_DRC2RMIX_INPUT_3_SOURCE:
+	case ARIZONA_DRC2RMIX_INPUT_3_VOLUME:
+	case ARIZONA_DRC2RMIX_INPUT_4_SOURCE:
+	case ARIZONA_DRC2RMIX_INPUT_4_VOLUME:
+	case ARIZONA_HPLP1MIX_INPUT_1_SOURCE:
+	case ARIZONA_HPLP1MIX_INPUT_1_VOLUME:
+	case ARIZONA_HPLP1MIX_INPUT_2_SOURCE:
+	case ARIZONA_HPLP1MIX_INPUT_2_VOLUME:
+	case ARIZONA_HPLP1MIX_INPUT_3_SOURCE:
+	case ARIZONA_HPLP1MIX_INPUT_3_VOLUME:
+	case ARIZONA_HPLP1MIX_INPUT_4_SOURCE:
+	case ARIZONA_HPLP1MIX_INPUT_4_VOLUME:
+	case ARIZONA_HPLP2MIX_INPUT_1_SOURCE:
+	case ARIZONA_HPLP2MIX_INPUT_1_VOLUME:
+	case ARIZONA_HPLP2MIX_INPUT_2_SOURCE:
+	case ARIZONA_HPLP2MIX_INPUT_2_VOLUME:
+	case ARIZONA_HPLP2MIX_INPUT_3_SOURCE:
+	case ARIZONA_HPLP2MIX_INPUT_3_VOLUME:
+	case ARIZONA_HPLP2MIX_INPUT_4_SOURCE:
+	case ARIZONA_HPLP2MIX_INPUT_4_VOLUME:
+	case ARIZONA_HPLP3MIX_INPUT_1_SOURCE:
+	case ARIZONA_HPLP3MIX_INPUT_1_VOLUME:
+	case ARIZONA_HPLP3MIX_INPUT_2_SOURCE:
+	case ARIZONA_HPLP3MIX_INPUT_2_VOLUME:
+	case ARIZONA_HPLP3MIX_INPUT_3_SOURCE:
+	case ARIZONA_HPLP3MIX_INPUT_3_VOLUME:
+	case ARIZONA_HPLP3MIX_INPUT_4_SOURCE:
+	case ARIZONA_HPLP3MIX_INPUT_4_VOLUME:
+	case ARIZONA_HPLP4MIX_INPUT_1_SOURCE:
+	case ARIZONA_HPLP4MIX_INPUT_1_VOLUME:
+	case ARIZONA_HPLP4MIX_INPUT_2_SOURCE:
+	case ARIZONA_HPLP4MIX_INPUT_2_VOLUME:
+	case ARIZONA_HPLP4MIX_INPUT_3_SOURCE:
+	case ARIZONA_HPLP4MIX_INPUT_3_VOLUME:
+	case ARIZONA_HPLP4MIX_INPUT_4_SOURCE:
+	case ARIZONA_HPLP4MIX_INPUT_4_VOLUME:
+	case ARIZONA_DSP2LMIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2LMIX_INPUT_1_VOLUME:
+	case ARIZONA_DSP2LMIX_INPUT_2_SOURCE:
+	case ARIZONA_DSP2LMIX_INPUT_2_VOLUME:
+	case ARIZONA_DSP2LMIX_INPUT_3_SOURCE:
+	case ARIZONA_DSP2LMIX_INPUT_3_VOLUME:
+	case ARIZONA_DSP2LMIX_INPUT_4_SOURCE:
+	case ARIZONA_DSP2LMIX_INPUT_4_VOLUME:
+	case ARIZONA_DSP2RMIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2RMIX_INPUT_1_VOLUME:
+	case ARIZONA_DSP2RMIX_INPUT_2_SOURCE:
+	case ARIZONA_DSP2RMIX_INPUT_2_VOLUME:
+	case ARIZONA_DSP2RMIX_INPUT_3_SOURCE:
+	case ARIZONA_DSP2RMIX_INPUT_3_VOLUME:
+	case ARIZONA_DSP2RMIX_INPUT_4_SOURCE:
+	case ARIZONA_DSP2RMIX_INPUT_4_VOLUME:
+	case ARIZONA_DSP2AUX1MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2AUX2MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2AUX3MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2AUX4MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2AUX5MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP2AUX6MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3LMIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3LMIX_INPUT_1_VOLUME:
+	case ARIZONA_DSP3LMIX_INPUT_2_SOURCE:
+	case ARIZONA_DSP3LMIX_INPUT_2_VOLUME:
+	case ARIZONA_DSP3LMIX_INPUT_3_SOURCE:
+	case ARIZONA_DSP3LMIX_INPUT_3_VOLUME:
+	case ARIZONA_DSP3LMIX_INPUT_4_SOURCE:
+	case ARIZONA_DSP3LMIX_INPUT_4_VOLUME:
+	case ARIZONA_DSP3RMIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3RMIX_INPUT_1_VOLUME:
+	case ARIZONA_DSP3RMIX_INPUT_2_SOURCE:
+	case ARIZONA_DSP3RMIX_INPUT_2_VOLUME:
+	case ARIZONA_DSP3RMIX_INPUT_3_SOURCE:
+	case ARIZONA_DSP3RMIX_INPUT_3_VOLUME:
+	case ARIZONA_DSP3RMIX_INPUT_4_SOURCE:
+	case ARIZONA_DSP3RMIX_INPUT_4_VOLUME:
+	case ARIZONA_DSP3AUX1MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3AUX2MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3AUX3MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3AUX4MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3AUX5MIX_INPUT_1_SOURCE:
+	case ARIZONA_DSP3AUX6MIX_INPUT_1_SOURCE:
+	case ARIZONA_ASRC1LMIX_INPUT_1_SOURCE:
+	case ARIZONA_ASRC1RMIX_INPUT_1_SOURCE:
+	case ARIZONA_ASRC2LMIX_INPUT_1_SOURCE:
+	case ARIZONA_ASRC2RMIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1DEC1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1DEC2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1DEC3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1DEC4MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1INT1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1INT2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1INT3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC1INT4MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2DEC1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2DEC2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2DEC3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2DEC4MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2INT1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2INT2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2INT3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC2INT4MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3DEC1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3DEC2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3DEC3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3DEC4MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3INT1MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3INT2MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3INT3MIX_INPUT_1_SOURCE:
+	case ARIZONA_ISRC3INT4MIX_INPUT_1_SOURCE:
+	case ARIZONA_GPIO1_CTRL:
+	case ARIZONA_GPIO2_CTRL:
+	case ARIZONA_IRQ_CTRL_1:
+	case ARIZONA_GPIO_DEBOUNCE_CONFIG:
+	case ARIZONA_MISC_PAD_CTRL_1:
+	case ARIZONA_MISC_PAD_CTRL_2:
+	case ARIZONA_MISC_PAD_CTRL_3:
+	case ARIZONA_MISC_PAD_CTRL_4:
+	case ARIZONA_MISC_PAD_CTRL_5:
+	case ARIZONA_MISC_PAD_CTRL_6:
+	case ARIZONA_MISC_PAD_CTRL_7:
+	case ARIZONA_MISC_PAD_CTRL_9:
+	case ARIZONA_MISC_PAD_CTRL_10:
+	case ARIZONA_MISC_PAD_CTRL_11:
+	case ARIZONA_MISC_PAD_CTRL_12:
+	case ARIZONA_MISC_PAD_CTRL_13:
+	case ARIZONA_MISC_PAD_CTRL_14:
+	case ARIZONA_MISC_PAD_CTRL_16:
+	case ARIZONA_INTERRUPT_STATUS_1:
+	case ARIZONA_INTERRUPT_STATUS_2:
+	case ARIZONA_INTERRUPT_STATUS_3:
+	case ARIZONA_INTERRUPT_STATUS_4:
+	case ARIZONA_INTERRUPT_STATUS_5:
+	case ARIZONA_INTERRUPT_STATUS_6:
+	case ARIZONA_INTERRUPT_STATUS_1_MASK:
+	case ARIZONA_INTERRUPT_STATUS_2_MASK:
+	case ARIZONA_INTERRUPT_STATUS_3_MASK:
+	case ARIZONA_INTERRUPT_STATUS_4_MASK:
+	case ARIZONA_INTERRUPT_STATUS_5_MASK:
+	case ARIZONA_INTERRUPT_STATUS_6_MASK:
+	case ARIZONA_INTERRUPT_CONTROL:
+	case ARIZONA_IRQ2_STATUS_1:
+	case ARIZONA_IRQ2_STATUS_2:
+	case ARIZONA_IRQ2_STATUS_3:
+	case ARIZONA_IRQ2_STATUS_4:
+	case ARIZONA_IRQ2_STATUS_5:
+	case ARIZONA_IRQ2_STATUS_6:
+	case ARIZONA_IRQ2_STATUS_1_MASK:
+	case ARIZONA_IRQ2_STATUS_2_MASK:
+	case ARIZONA_IRQ2_STATUS_3_MASK:
+	case ARIZONA_IRQ2_STATUS_4_MASK:
+	case ARIZONA_IRQ2_STATUS_5_MASK:
+	case ARIZONA_IRQ2_STATUS_6_MASK:
+	case ARIZONA_IRQ2_CONTROL:
+	case ARIZONA_INTERRUPT_RAW_STATUS_2:
+	case ARIZONA_INTERRUPT_RAW_STATUS_3:
+	case ARIZONA_INTERRUPT_RAW_STATUS_4:
+	case ARIZONA_INTERRUPT_RAW_STATUS_5:
+	case ARIZONA_INTERRUPT_RAW_STATUS_6:
+	case ARIZONA_INTERRUPT_RAW_STATUS_7:
+	case ARIZONA_INTERRUPT_RAW_STATUS_8:
+	case ARIZONA_INTERRUPT_RAW_STATUS_9:
+	case ARIZONA_IRQ_PIN_STATUS:
+	case ARIZONA_FX_CTRL1:
+	case ARIZONA_FX_CTRL2:
+	case ARIZONA_EQ1_1:
+	case ARIZONA_EQ1_2:
+	case ARIZONA_EQ1_3:
+	case ARIZONA_EQ1_4:
+	case ARIZONA_EQ1_5:
+	case ARIZONA_EQ1_6:
+	case ARIZONA_EQ1_7:
+	case ARIZONA_EQ1_8:
+	case ARIZONA_EQ1_9:
+	case ARIZONA_EQ1_10:
+	case ARIZONA_EQ1_11:
+	case ARIZONA_EQ1_12:
+	case ARIZONA_EQ1_13:
+	case ARIZONA_EQ1_14:
+	case ARIZONA_EQ1_15:
+	case ARIZONA_EQ1_16:
+	case ARIZONA_EQ1_17:
+	case ARIZONA_EQ1_18:
+	case ARIZONA_EQ1_19:
+	case ARIZONA_EQ1_20:
+	case ARIZONA_EQ1_21:
+	case ARIZONA_EQ2_1:
+	case ARIZONA_EQ2_2:
+	case ARIZONA_EQ2_3:
+	case ARIZONA_EQ2_4:
+	case ARIZONA_EQ2_5:
+	case ARIZONA_EQ2_6:
+	case ARIZONA_EQ2_7:
+	case ARIZONA_EQ2_8:
+	case ARIZONA_EQ2_9:
+	case ARIZONA_EQ2_10:
+	case ARIZONA_EQ2_11:
+	case ARIZONA_EQ2_12:
+	case ARIZONA_EQ2_13:
+	case ARIZONA_EQ2_14:
+	case ARIZONA_EQ2_15:
+	case ARIZONA_EQ2_16:
+	case ARIZONA_EQ2_17:
+	case ARIZONA_EQ2_18:
+	case ARIZONA_EQ2_19:
+	case ARIZONA_EQ2_20:
+	case ARIZONA_EQ2_21:
+	case ARIZONA_DRC1_CTRL1:
+	case ARIZONA_DRC1_CTRL2:
+	case ARIZONA_DRC1_CTRL3:
+	case ARIZONA_DRC1_CTRL4:
+	case ARIZONA_DRC1_CTRL5:
+	case ARIZONA_DRC2_CTRL1:
+	case ARIZONA_DRC2_CTRL2:
+	case ARIZONA_DRC2_CTRL3:
+	case ARIZONA_DRC2_CTRL4:
+	case ARIZONA_DRC2_CTRL5:
+	case ARIZONA_HPLPF1_1:
+	case ARIZONA_HPLPF1_2:
+	case ARIZONA_HPLPF2_1:
+	case ARIZONA_HPLPF2_2:
+	case ARIZONA_HPLPF3_1:
+	case ARIZONA_HPLPF3_2:
+	case ARIZONA_HPLPF4_1:
+	case ARIZONA_HPLPF4_2:
+	case ARIZONA_ASRC_ENABLE:
+	case ARIZONA_ASRC_STATUS:
+	case ARIZONA_ASRC_RATE1:
+	case ARIZONA_ASRC_RATE2:
+	case ARIZONA_ISRC_1_CTRL_1:
+	case ARIZONA_ISRC_1_CTRL_2:
+	case ARIZONA_ISRC_1_CTRL_3:
+	case ARIZONA_ISRC_2_CTRL_1:
+	case ARIZONA_ISRC_2_CTRL_2:
+	case ARIZONA_ISRC_2_CTRL_3:
+	case ARIZONA_ISRC_3_CTRL_1:
+	case ARIZONA_ISRC_3_CTRL_2:
+	case ARIZONA_ISRC_3_CTRL_3:
+	case ARIZONA_DSP2_CONTROL_1:
+	case ARIZONA_DSP2_CLOCKING_1:
+	case ARIZONA_DSP2_STATUS_1:
+	case ARIZONA_DSP2_STATUS_2:
+	case ARIZONA_DSP2_STATUS_3:
+	case ARIZONA_DSP2_STATUS_4:
+	case ARIZONA_DSP2_WDMA_BUFFER_1:
+	case ARIZONA_DSP2_WDMA_BUFFER_2:
+	case ARIZONA_DSP2_WDMA_BUFFER_3:
+	case ARIZONA_DSP2_WDMA_BUFFER_4:
+	case ARIZONA_DSP2_WDMA_BUFFER_5:
+	case ARIZONA_DSP2_WDMA_BUFFER_6:
+	case ARIZONA_DSP2_WDMA_BUFFER_7:
+	case ARIZONA_DSP2_WDMA_BUFFER_8:
+	case ARIZONA_DSP2_RDMA_BUFFER_1:
+	case ARIZONA_DSP2_RDMA_BUFFER_2:
+	case ARIZONA_DSP2_RDMA_BUFFER_3:
+	case ARIZONA_DSP2_RDMA_BUFFER_4:
+	case ARIZONA_DSP2_RDMA_BUFFER_5:
+	case ARIZONA_DSP2_RDMA_BUFFER_6:
+	case ARIZONA_DSP2_WDMA_CONFIG_1:
+	case ARIZONA_DSP2_WDMA_CONFIG_2:
+	case ARIZONA_DSP2_WDMA_OFFSET_1:
+	case ARIZONA_DSP2_RDMA_CONFIG_1:
+	case ARIZONA_DSP2_RDMA_OFFSET_1:
+	case ARIZONA_DSP2_EXTERNAL_START_SELECT_1:
+	case ARIZONA_DSP2_SCRATCH_0:
+	case ARIZONA_DSP2_SCRATCH_1:
+	case ARIZONA_DSP2_SCRATCH_2:
+	case ARIZONA_DSP2_SCRATCH_3:
+	case ARIZONA_DSP3_CONTROL_1:
+	case ARIZONA_DSP3_CLOCKING_1:
+	case ARIZONA_DSP3_STATUS_1:
+	case ARIZONA_DSP3_STATUS_2:
+	case ARIZONA_DSP3_STATUS_3:
+	case ARIZONA_DSP3_STATUS_4:
+	case ARIZONA_DSP3_WDMA_BUFFER_1:
+	case ARIZONA_DSP3_WDMA_BUFFER_2:
+	case ARIZONA_DSP3_WDMA_BUFFER_3:
+	case ARIZONA_DSP3_WDMA_BUFFER_4:
+	case ARIZONA_DSP3_WDMA_BUFFER_5:
+	case ARIZONA_DSP3_WDMA_BUFFER_6:
+	case ARIZONA_DSP3_WDMA_BUFFER_7:
+	case ARIZONA_DSP3_WDMA_BUFFER_8:
+	case ARIZONA_DSP3_RDMA_BUFFER_1:
+	case ARIZONA_DSP3_RDMA_BUFFER_2:
+	case ARIZONA_DSP3_RDMA_BUFFER_3:
+	case ARIZONA_DSP3_RDMA_BUFFER_4:
+	case ARIZONA_DSP3_RDMA_BUFFER_5:
+	case ARIZONA_DSP3_RDMA_BUFFER_6:
+	case ARIZONA_DSP3_WDMA_CONFIG_1:
+	case ARIZONA_DSP3_WDMA_CONFIG_2:
+	case ARIZONA_DSP3_WDMA_OFFSET_1:
+	case ARIZONA_DSP3_RDMA_CONFIG_1:
+	case ARIZONA_DSP3_RDMA_OFFSET_1:
+	case ARIZONA_DSP3_EXTERNAL_START_SELECT_1:
+	case ARIZONA_DSP3_SCRATCH_0:
+	case ARIZONA_DSP3_SCRATCH_1:
+	case ARIZONA_DSP3_SCRATCH_2:
+	case ARIZONA_DSP3_SCRATCH_3:
+		return true;
+	default:
+		return cs47l24_is_adsp_memory(reg);
+	}
+}
+
+static bool cs47l24_volatile_register(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ARIZONA_SOFTWARE_RESET:
+	case ARIZONA_DEVICE_REVISION:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_0:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_1:
+	case ARIZONA_WRITE_SEQUENCER_CTRL_2:
+	case ARIZONA_HAPTICS_STATUS:
+	case ARIZONA_SAMPLE_RATE_1_STATUS:
+	case ARIZONA_SAMPLE_RATE_2_STATUS:
+	case ARIZONA_SAMPLE_RATE_3_STATUS:
+	case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS:
+	case ARIZONA_ASYNC_SAMPLE_RATE_2_STATUS:
+	case ARIZONA_HP_CTRL_1L:
+	case ARIZONA_HP_CTRL_1R:
+	case ARIZONA_INPUT_ENABLES_STATUS:
+	case ARIZONA_OUTPUT_STATUS_1:
+	case ARIZONA_RAW_OUTPUT_STATUS_1:
+	case ARIZONA_INTERRUPT_STATUS_1:
+	case ARIZONA_INTERRUPT_STATUS_2:
+	case ARIZONA_INTERRUPT_STATUS_3:
+	case ARIZONA_INTERRUPT_STATUS_4:
+	case ARIZONA_INTERRUPT_STATUS_5:
+	case ARIZONA_INTERRUPT_STATUS_6:
+	case ARIZONA_IRQ2_STATUS_1:
+	case ARIZONA_IRQ2_STATUS_2:
+	case ARIZONA_IRQ2_STATUS_3:
+	case ARIZONA_IRQ2_STATUS_4:
+	case ARIZONA_IRQ2_STATUS_5:
+	case ARIZONA_IRQ2_STATUS_6:
+	case ARIZONA_INTERRUPT_RAW_STATUS_2:
+	case ARIZONA_INTERRUPT_RAW_STATUS_3:
+	case ARIZONA_INTERRUPT_RAW_STATUS_4:
+	case ARIZONA_INTERRUPT_RAW_STATUS_5:
+	case ARIZONA_INTERRUPT_RAW_STATUS_6:
+	case ARIZONA_INTERRUPT_RAW_STATUS_7:
+	case ARIZONA_INTERRUPT_RAW_STATUS_8:
+	case ARIZONA_INTERRUPT_RAW_STATUS_9:
+	case ARIZONA_IRQ_PIN_STATUS:
+	case ARIZONA_FX_CTRL2:
+	case ARIZONA_ASRC_STATUS:
+	case ARIZONA_DSP2_STATUS_1:
+	case ARIZONA_DSP2_STATUS_2:
+	case ARIZONA_DSP2_STATUS_3:
+	case ARIZONA_DSP2_STATUS_4:
+	case ARIZONA_DSP2_WDMA_BUFFER_1:
+	case ARIZONA_DSP2_WDMA_BUFFER_2:
+	case ARIZONA_DSP2_WDMA_BUFFER_3:
+	case ARIZONA_DSP2_WDMA_BUFFER_4:
+	case ARIZONA_DSP2_WDMA_BUFFER_5:
+	case ARIZONA_DSP2_WDMA_BUFFER_6:
+	case ARIZONA_DSP2_WDMA_BUFFER_7:
+	case ARIZONA_DSP2_WDMA_BUFFER_8:
+	case ARIZONA_DSP2_RDMA_BUFFER_1:
+	case ARIZONA_DSP2_RDMA_BUFFER_2:
+	case ARIZONA_DSP2_RDMA_BUFFER_3:
+	case ARIZONA_DSP2_RDMA_BUFFER_4:
+	case ARIZONA_DSP2_RDMA_BUFFER_5:
+	case ARIZONA_DSP2_RDMA_BUFFER_6:
+	case ARIZONA_DSP2_WDMA_CONFIG_1:
+	case ARIZONA_DSP2_WDMA_CONFIG_2:
+	case ARIZONA_DSP2_WDMA_OFFSET_1:
+	case ARIZONA_DSP2_RDMA_CONFIG_1:
+	case ARIZONA_DSP2_RDMA_OFFSET_1:
+	case ARIZONA_DSP2_EXTERNAL_START_SELECT_1:
+	case ARIZONA_DSP2_SCRATCH_0:
+	case ARIZONA_DSP2_SCRATCH_1:
+	case ARIZONA_DSP2_SCRATCH_2:
+	case ARIZONA_DSP2_SCRATCH_3:
+	case ARIZONA_DSP2_CLOCKING_1:
+	case ARIZONA_DSP3_STATUS_1:
+	case ARIZONA_DSP3_STATUS_2:
+	case ARIZONA_DSP3_STATUS_3:
+	case ARIZONA_DSP3_STATUS_4:
+	case ARIZONA_DSP3_WDMA_BUFFER_1:
+	case ARIZONA_DSP3_WDMA_BUFFER_2:
+	case ARIZONA_DSP3_WDMA_BUFFER_3:
+	case ARIZONA_DSP3_WDMA_BUFFER_4:
+	case ARIZONA_DSP3_WDMA_BUFFER_5:
+	case ARIZONA_DSP3_WDMA_BUFFER_6:
+	case ARIZONA_DSP3_WDMA_BUFFER_7:
+	case ARIZONA_DSP3_WDMA_BUFFER_8:
+	case ARIZONA_DSP3_RDMA_BUFFER_1:
+	case ARIZONA_DSP3_RDMA_BUFFER_2:
+	case ARIZONA_DSP3_RDMA_BUFFER_3:
+	case ARIZONA_DSP3_RDMA_BUFFER_4:
+	case ARIZONA_DSP3_RDMA_BUFFER_5:
+	case ARIZONA_DSP3_RDMA_BUFFER_6:
+	case ARIZONA_DSP3_WDMA_CONFIG_1:
+	case ARIZONA_DSP3_WDMA_CONFIG_2:
+	case ARIZONA_DSP3_WDMA_OFFSET_1:
+	case ARIZONA_DSP3_RDMA_CONFIG_1:
+	case ARIZONA_DSP3_RDMA_OFFSET_1:
+	case ARIZONA_DSP3_EXTERNAL_START_SELECT_1:
+	case ARIZONA_DSP3_SCRATCH_0:
+	case ARIZONA_DSP3_SCRATCH_1:
+	case ARIZONA_DSP3_SCRATCH_2:
+	case ARIZONA_DSP3_SCRATCH_3:
+	case ARIZONA_DSP3_CLOCKING_1:
+		return true;
+	default:
+		return cs47l24_is_adsp_memory(reg);
+	}
+}
+
+#define CS47L24_MAX_REGISTER 0x3b3fff
+
+const struct regmap_config cs47l24_spi_regmap = {
+	.reg_bits = 32,
+	.pad_bits = 16,
+	.val_bits = 16,
+	.reg_format_endian = REGMAP_ENDIAN_BIG,
+	.val_format_endian = REGMAP_ENDIAN_BIG,
+
+	.max_register = CS47L24_MAX_REGISTER,
+	.readable_reg = cs47l24_readable_register,
+	.volatile_reg = cs47l24_volatile_register,
+
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = cs47l24_reg_default,
+	.num_reg_defaults = ARRAY_SIZE(cs47l24_reg_default),
+};
+EXPORT_SYMBOL_GPL(cs47l24_spi_regmap);
+
diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index be91cb5d6e78..f9d277ff4aaf 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -60,6 +60,7 @@ static int cs5535_mfd_res_enable(struct platform_device *pdev)
 static int cs5535_mfd_res_disable(struct platform_device *pdev)
 {
 	struct resource *res;
+
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "can't fetch device resource info\n");
@@ -114,7 +115,10 @@ static struct mfd_cell cs5535_mfd_cells[] = {
 #ifdef CONFIG_OLPC
 static void cs5535_clone_olpc_cells(void)
 {
-	const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };
+	static const char *acpi_clones[] = {
+		"olpc-xo1-pm-acpi",
+		"olpc-xo1-sci-acpi"
+	};
 
 	if (!machine_is_olpc())
 		return;
diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
index 37e4426ef061..09f367571c58 100644
--- a/drivers/mfd/da903x.c
+++ b/drivers/mfd/da903x.c
@@ -2,10 +2,10 @@
  * Base driver for Dialog Semiconductor DA9030/DA9034
  *
  * Copyright (C) 2008 Compulab, Ltd.
- * 	Mike Rapoport <mike@compulab.co.il>
+ *	Mike Rapoport <mike@compulab.co.il>
  *
  * Copyright (C) 2006-2008 Marvell International Ltd.
- * 	Eric Miao <eric.miao@marvell.com>
+ *	Eric Miao <eric.miao@marvell.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -60,7 +60,7 @@ struct da903x_chip_ops {
 struct da903x_chip {
 	struct i2c_client	*client;
 	struct device		*dev;
-	struct da903x_chip_ops	*ops;
+	const struct da903x_chip_ops *ops;
 
 	int			type;
 	uint32_t		events_mask;
@@ -424,7 +424,7 @@ static irqreturn_t da903x_irq_handler(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static struct da903x_chip_ops da903x_ops[] = {
+static const struct da903x_chip_ops da903x_ops[] = {
 	[0] = {
 		.init_chip	= da9030_init_chip,
 		.unmask_events	= da9030_unmask_events,
@@ -565,6 +565,6 @@ static void __exit da903x_exit(void)
 module_exit(da903x_exit);
 
 MODULE_DESCRIPTION("PMIC Driver for Dialog Semiconductor DA9034");
-MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
-	      "Mike Rapoport <mike@compulab.co.il>");
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 2697ffb08009..578e881067a5 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -70,7 +70,7 @@ static int da9052_i2c_fix(struct da9052 *da9052, unsigned char reg)
 	case DA9053_BA:
 	case DA9053_BB:
 		/* A dummy read to a safe register address. */
-	if (!i2c_safe_reg(reg))
+		if (!i2c_safe_reg(reg))
 			return regmap_read(da9052->regmap,
 					   DA9052_PARK_REGISTER,
 					   &val);
diff --git a/drivers/mfd/da9052-irq.c b/drivers/mfd/da9052-irq.c
index f4cb4613140b..cd4ca849ca44 100644
--- a/drivers/mfd/da9052-irq.c
+++ b/drivers/mfd/da9052-irq.c
@@ -283,7 +283,7 @@ regmap_err:
 
 int da9052_irq_exit(struct da9052 *da9052)
 {
-	da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052);
+	da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM, da9052);
 	regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
 
 	return 0;
diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c
index 9bbc642a7b9d..dff2f19296b8 100644
--- a/drivers/mfd/davinci_voicecodec.c
+++ b/drivers/mfd/davinci_voicecodec.c
@@ -47,11 +47,8 @@ static int __init davinci_vc_probe(struct platform_device *pdev)
 
 	davinci_vc = devm_kzalloc(&pdev->dev,
 				  sizeof(struct davinci_vc), GFP_KERNEL);
-	if (!davinci_vc) {
-		dev_dbg(&pdev->dev,
-			    "could not allocate memory for private data\n");
+	if (!davinci_vc)
 		return -ENOMEM;
-	}
 
 	davinci_vc->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(davinci_vc->clk)) {
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 4c826f78acd0..bf3e0b21b247 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -147,7 +147,7 @@ static int msp_gpio_get(struct gpio_chip *chip, unsigned offset)
 		return status;
 	if (reg == DM355EVM_MSP_LED)
 		msp_led_cache = status;
-	return status & MSP_GPIO_MASK(offset);
+	return !!(status & MSP_GPIO_MASK(offset));
 }
 
 static int msp_gpio_out(struct gpio_chip *chip, unsigned offset, int value)
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index 6ccaf90d98fd..e4f4a31b76d9 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -163,7 +163,7 @@ static int egpio_get(struct gpio_chip *chip, unsigned offset)
 	value = egpio_readw(ei, reg);
 	pr_debug("readw(%p + %x) = %x\n",
 			ei->base_addr, reg << ei->bus_shift, value);
-	return value & bit;
+	return !!(value & bit);
 }
 
 static int egpio_direction_input(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/mfd/intel-lpss-acpi.c b/drivers/mfd/intel-lpss-acpi.c
index b6fd9041f82f..06f00d60be46 100644
--- a/drivers/mfd/intel-lpss-acpi.c
+++ b/drivers/mfd/intel-lpss-acpi.c
@@ -18,6 +18,7 @@
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 
 #include "intel-lpss.h"
 
@@ -25,6 +26,20 @@ static const struct intel_lpss_platform_info spt_info = {
 	.clk_rate = 120000000,
 };
 
+static struct property_entry spt_i2c_properties[] = {
+	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
+	{ },
+};
+
+static struct property_set spt_i2c_pset = {
+	.properties = spt_i2c_properties,
+};
+
+static const struct intel_lpss_platform_info spt_i2c_info = {
+	.clk_rate = 120000000,
+	.pset = &spt_i2c_pset,
+};
+
 static const struct intel_lpss_platform_info bxt_info = {
 	.clk_rate = 100000000,
 };
@@ -35,8 +50,8 @@ static const struct intel_lpss_platform_info bxt_i2c_info = {
 
 static const struct acpi_device_id intel_lpss_acpi_ids[] = {
 	/* SPT */
-	{ "INT3446", (kernel_ulong_t)&spt_info },
-	{ "INT3447", (kernel_ulong_t)&spt_info },
+	{ "INT3446", (kernel_ulong_t)&spt_i2c_info },
+	{ "INT3447", (kernel_ulong_t)&spt_i2c_info },
 	/* BXT */
 	{ "80860AAC", (kernel_ulong_t)&bxt_i2c_info },
 	{ "80860ABC", (kernel_ulong_t)&bxt_info },
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index 5bfdfccbb9a1..a7136c7ae9fb 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -17,6 +17,7 @@
 #include <linux/pci.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 
 #include "intel-lpss.h"
 
@@ -65,9 +66,35 @@ static const struct intel_lpss_platform_info spt_info = {
 	.clk_rate = 120000000,
 };
 
+static struct property_entry spt_i2c_properties[] = {
+	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
+	{ },
+};
+
+static struct property_set spt_i2c_pset = {
+	.properties = spt_i2c_properties,
+};
+
+static const struct intel_lpss_platform_info spt_i2c_info = {
+	.clk_rate = 120000000,
+	.pset = &spt_i2c_pset,
+};
+
+static struct property_entry uart_properties[] = {
+	PROPERTY_ENTRY_U32("reg-io-width", 4),
+	PROPERTY_ENTRY_U32("reg-shift", 2),
+	PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"),
+	{ },
+};
+
+static struct property_set uart_pset = {
+	.properties = uart_properties,
+};
+
 static const struct intel_lpss_platform_info spt_uart_info = {
 	.clk_rate = 120000000,
 	.clk_con_id = "baudclk",
+	.pset = &uart_pset,
 };
 
 static const struct intel_lpss_platform_info bxt_info = {
@@ -77,6 +104,7 @@ static const struct intel_lpss_platform_info bxt_info = {
 static const struct intel_lpss_platform_info bxt_uart_info = {
 	.clk_rate = 100000000,
 	.clk_con_id = "baudclk",
+	.pset = &uart_pset,
 };
 
 static const struct intel_lpss_platform_info bxt_i2c_info = {
@@ -121,20 +149,20 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0x9d28), (kernel_ulong_t)&spt_uart_info },
 	{ PCI_VDEVICE(INTEL, 0x9d29), (kernel_ulong_t)&spt_info },
 	{ PCI_VDEVICE(INTEL, 0x9d2a), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d60), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d61), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d62), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d63), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d64), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0x9d65), (kernel_ulong_t)&spt_info },
+	{ PCI_VDEVICE(INTEL, 0x9d60), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0x9d61), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0x9d62), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0x9d63), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0x9d64), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0x9d65), (kernel_ulong_t)&spt_i2c_info },
 	{ PCI_VDEVICE(INTEL, 0x9d66), (kernel_ulong_t)&spt_uart_info },
 	/* SPT-H */
 	{ PCI_VDEVICE(INTEL, 0xa127), (kernel_ulong_t)&spt_uart_info },
 	{ PCI_VDEVICE(INTEL, 0xa128), (kernel_ulong_t)&spt_uart_info },
 	{ PCI_VDEVICE(INTEL, 0xa129), (kernel_ulong_t)&spt_info },
 	{ PCI_VDEVICE(INTEL, 0xa12a), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0xa160), (kernel_ulong_t)&spt_info },
-	{ PCI_VDEVICE(INTEL, 0xa161), (kernel_ulong_t)&spt_info },
+	{ PCI_VDEVICE(INTEL, 0xa160), (kernel_ulong_t)&spt_i2c_info },
+	{ PCI_VDEVICE(INTEL, 0xa161), (kernel_ulong_t)&spt_i2c_info },
 	{ PCI_VDEVICE(INTEL, 0xa166), (kernel_ulong_t)&spt_uart_info },
 	{ }
 };
diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c
index 6255513f54c7..1743788f1595 100644
--- a/drivers/mfd/intel-lpss.c
+++ b/drivers/mfd/intel-lpss.c
@@ -24,6 +24,7 @@
 #include <linux/mfd/core.h>
 #include <linux/pm_qos.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/seq_file.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
 
@@ -72,7 +73,7 @@ struct intel_lpss {
 	enum intel_lpss_dev_type type;
 	struct clk *clk;
 	struct clk_lookup *clock;
-	const struct mfd_cell *cell;
+	struct mfd_cell *cell;
 	struct device *dev;
 	void __iomem *priv;
 	int devid;
@@ -217,6 +218,7 @@ static void intel_lpss_ltr_hide(struct intel_lpss *lpss)
 
 static int intel_lpss_assign_devs(struct intel_lpss *lpss)
 {
+	const struct mfd_cell *cell;
 	unsigned int type;
 
 	type = lpss->caps & LPSS_PRIV_CAPS_TYPE_MASK;
@@ -224,18 +226,22 @@ static int intel_lpss_assign_devs(struct intel_lpss *lpss)
 
 	switch (type) {
 	case LPSS_DEV_I2C:
-		lpss->cell = &intel_lpss_i2c_cell;
+		cell = &intel_lpss_i2c_cell;
 		break;
 	case LPSS_DEV_UART:
-		lpss->cell = &intel_lpss_uart_cell;
+		cell = &intel_lpss_uart_cell;
 		break;
 	case LPSS_DEV_SPI:
-		lpss->cell = &intel_lpss_spi_cell;
+		cell = &intel_lpss_spi_cell;
 		break;
 	default:
 		return -ENODEV;
 	}
 
+	lpss->cell = devm_kmemdup(lpss->dev, cell, sizeof(*cell), GFP_KERNEL);
+	if (!lpss->cell)
+		return -ENOMEM;
+
 	lpss->type = type;
 
 	return 0;
@@ -401,6 +407,8 @@ int intel_lpss_probe(struct device *dev,
 	if (ret)
 		return ret;
 
+	lpss->cell->pset = info->pset;
+
 	intel_lpss_init_dev(lpss);
 
 	lpss->devid = ida_simple_get(&intel_lpss_devid_ida, 0, 0, GFP_KERNEL);
diff --git a/drivers/mfd/intel-lpss.h b/drivers/mfd/intel-lpss.h
index 2c7f8d7c0595..0dcea9eb2d03 100644
--- a/drivers/mfd/intel-lpss.h
+++ b/drivers/mfd/intel-lpss.h
@@ -16,12 +16,14 @@
 
 struct device;
 struct resource;
+struct property_set;
 
 struct intel_lpss_platform_info {
 	struct resource *mem;
 	int irq;
 	unsigned long clk_rate;
 	const char *clk_con_id;
+	struct property_set *pset;
 };
 
 int intel_lpss_probe(struct device *dev,
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index b514f3cf140d..bd3aa4578346 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -55,6 +55,7 @@
  *	document number TBD : Coleto Creek
  *	document number TBD : Wildcat Point-LP
  *	document number TBD : 9 Series
+ *	document number TBD : Lewisburg
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -213,6 +214,7 @@ enum lpc_chipsets {
 	LPC_COLETO,	/* Coleto Creek */
 	LPC_WPT_LP,	/* Wildcat Point-LP */
 	LPC_BRASWELL,	/* Braswell SoC */
+	LPC_LEWISBURG,	/* Lewisburg */
 	LPC_9S,		/* 9 Series */
 };
 
@@ -521,6 +523,10 @@ static struct lpc_ich_info lpc_chipset_info[] = {
 		.name = "Braswell SoC",
 		.iTCO_version = 3,
 	},
+	[LPC_LEWISBURG] = {
+		.name = "Lewisburg",
+		.iTCO_version = 2,
+	},
 	[LPC_9S] = {
 		.name = "9 Series",
 		.iTCO_version = 2,
@@ -757,6 +763,15 @@ static const struct pci_device_id lpc_ich_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0x9cc6), LPC_WPT_LP},
 	{ PCI_VDEVICE(INTEL, 0x9cc7), LPC_WPT_LP},
 	{ PCI_VDEVICE(INTEL, 0x9cc9), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0xa1c1), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c2), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c3), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c4), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c5), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c6), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa1c7), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa242), LPC_LEWISBURG},
+	{ PCI_VDEVICE(INTEL, 0xa243), LPC_LEWISBURG},
 	{ 0, },			/* End of list */
 };
 MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c
index 56e216dedc91..2280b3fdcf68 100644
--- a/drivers/mfd/max14577.c
+++ b/drivers/mfd/max14577.c
@@ -495,7 +495,7 @@ MODULE_DEVICE_TABLE(i2c, max14577_i2c_id);
 #ifdef CONFIG_PM_SLEEP
 static int max14577_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max14577 *max14577 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -516,7 +516,7 @@ static int max14577_suspend(struct device *dev)
 
 static int max14577_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max14577 *max14577 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index d19be64cd32b..d959ebbb2194 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -352,7 +352,7 @@ MODULE_DEVICE_TABLE(i2c, max77686_i2c_id);
 #ifdef CONFIG_PM_SLEEP
 static int max77686_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -374,7 +374,7 @@ static int max77686_suspend(struct device *dev)
 
 static int max77686_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 007f729e150b..b83b7a7da1ae 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -334,7 +334,7 @@ MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);
 
 static int max77693_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev)) {
@@ -347,7 +347,7 @@ static int max77693_suspend(struct device *dev)
 
 static int max77693_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev)) {
diff --git a/drivers/mfd/max77843.c b/drivers/mfd/max77843.c
index 586098f1b233..7cfc95b49c5d 100644
--- a/drivers/mfd/max77843.c
+++ b/drivers/mfd/max77843.c
@@ -197,7 +197,7 @@ MODULE_DEVICE_TABLE(i2c, max77843_id);
 
 static int __maybe_unused max77843_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77693_dev *max77843 = i2c_get_clientdata(i2c);
 
 	disable_irq(max77843->irq);
@@ -209,7 +209,7 @@ static int __maybe_unused max77843_suspend(struct device *dev)
 
 static int __maybe_unused max77843_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max77693_dev *max77843 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
index b0fe8103e401..70443b161a5b 100644
--- a/drivers/mfd/max8925-i2c.c
+++ b/drivers/mfd/max8925-i2c.c
@@ -215,7 +215,7 @@ static int max8925_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int max8925_suspend(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct max8925_chip *chip = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev) && chip->wakeup_flag)
@@ -225,7 +225,7 @@ static int max8925_suspend(struct device *dev)
 
 static int max8925_resume(struct device *dev)
 {
-	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *client = to_i2c_client(dev);
 	struct max8925_chip *chip = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(dev) && chip->wakeup_flag)
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index 156ed6f92aa3..f316348e3d98 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -437,7 +437,7 @@ static u8 max8997_dumpaddr_haptic[] = {
 
 static int max8997_freeze(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
 	int i;
 
@@ -459,7 +459,7 @@ static int max8997_freeze(struct device *dev)
 
 static int max8997_restore(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
 	int i;
 
@@ -481,7 +481,7 @@ static int max8997_restore(struct device *dev)
 
 static int max8997_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -491,7 +491,7 @@ static int max8997_suspend(struct device *dev)
 
 static int max8997_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index a7afe3bf27fc..ab28b29400f6 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -274,7 +274,7 @@ MODULE_DEVICE_TABLE(i2c, max8998_i2c_id);
 
 static int max8998_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -284,7 +284,7 @@ static int max8998_suspend(struct device *dev)
 
 static int max8998_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -344,7 +344,7 @@ static struct max8998_reg_dump max8998_dump[] = {
 /* Save registers before hibernation */
 static int max8998_freeze(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(max8998_dump); i++)
@@ -357,7 +357,7 @@ static int max8998_freeze(struct device *dev)
 /* Restore registers after hibernation */
 static int max8998_restore(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(max8998_dump); i++)
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 3f9f4c874d2a..d7f54e492aa6 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -383,16 +383,16 @@ static int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
 	if (!np)
 		return -ENODEV;
 
-	if (of_get_property(np, "fsl,mc13xxx-uses-adc", NULL))
+	if (of_property_read_bool(np, "fsl,mc13xxx-uses-adc"))
 		mc13xxx->flags |= MC13XXX_USE_ADC;
 
-	if (of_get_property(np, "fsl,mc13xxx-uses-codec", NULL))
+	if (of_property_read_bool(np, "fsl,mc13xxx-uses-codec"))
 		mc13xxx->flags |= MC13XXX_USE_CODEC;
 
-	if (of_get_property(np, "fsl,mc13xxx-uses-rtc", NULL))
+	if (of_property_read_bool(np, "fsl,mc13xxx-uses-rtc"))
 		mc13xxx->flags |= MC13XXX_USE_RTC;
 
-	if (of_get_property(np, "fsl,mc13xxx-uses-touch", NULL))
+	if (of_property_read_bool(np, "fsl,mc13xxx-uses-touch"))
 		mc13xxx->flags |= MC13XXX_USE_TOUCHSCREEN;
 
 	return 0;
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 60b60dc63ddd..88bd1b1e47be 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/acpi.h>
+#include <linux/property.h>
 #include <linux/mfd/core.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
@@ -192,6 +193,12 @@ static int mfd_add_device(struct device *parent, int id,
 			goto fail_alias;
 	}
 
+	if (cell->pset) {
+		ret = platform_device_add_properties(pdev, cell->pset);
+		if (ret)
+			goto fail_alias;
+	}
+
 	ret = mfd_platform_add_cell(pdev, cell, usage_count);
 	if (ret)
 		goto fail_alias;
diff --git a/drivers/mfd/qcom-spmi-pmic.c b/drivers/mfd/qcom-spmi-pmic.c
index af6ac1c4b45c..8653e8b9bb4f 100644
--- a/drivers/mfd/qcom-spmi-pmic.c
+++ b/drivers/mfd/qcom-spmi-pmic.c
@@ -127,7 +127,9 @@ static int pmic_spmi_probe(struct spmi_device *sdev)
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
 
-	pmic_spmi_show_revid(regmap, &sdev->dev);
+	/* Only the first slave id for a PMIC contains this information */
+	if (sdev->usid % 2 == 0)
+		pmic_spmi_show_revid(regmap, &sdev->dev);
 
 	return of_platform_populate(root, NULL, NULL, &sdev->dev);
 }
diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c
index 207a3bd68559..1be47ad6441b 100644
--- a/drivers/mfd/qcom_rpm.c
+++ b/drivers/mfd/qcom_rpm.c
@@ -495,6 +495,8 @@ static int qcom_rpm_probe(struct platform_device *pdev)
 	}
 
 	match = of_match_device(qcom_rpm_of_match, &pdev->dev);
+	if (!match)
+		return -ENODEV;
 	rpm->data = match->data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 989076d6cb83..400e1d7d8d08 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -29,6 +29,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 #include <linux/mfd/samsung/s2mps13.h>
 #include <linux/mfd/samsung/s2mps14.h>
+#include <linux/mfd/samsung/s2mps15.h>
 #include <linux/mfd/samsung/s2mpu02.h>
 #include <linux/mfd/samsung/s5m8763.h>
 #include <linux/mfd/samsung/s5m8767.h>
@@ -67,7 +68,7 @@ static const struct mfd_cell s5m8767_devs[] = {
 
 static const struct mfd_cell s2mps11_devs[] = {
 	{
-		.name = "s2mps11-pmic",
+		.name = "s2mps11-regulator",
 	}, {
 		.name = "s2mps14-rtc",
 	}, {
@@ -77,7 +78,7 @@ static const struct mfd_cell s2mps11_devs[] = {
 };
 
 static const struct mfd_cell s2mps13_devs[] = {
-	{ .name = "s2mps13-pmic", },
+	{ .name = "s2mps13-regulator", },
 	{ .name = "s2mps13-rtc", },
 	{
 		.name = "s2mps13-clk",
@@ -87,7 +88,7 @@ static const struct mfd_cell s2mps13_devs[] = {
 
 static const struct mfd_cell s2mps14_devs[] = {
 	{
-		.name = "s2mps14-pmic",
+		.name = "s2mps14-regulator",
 	}, {
 		.name = "s2mps14-rtc",
 	}, {
@@ -96,6 +97,17 @@ static const struct mfd_cell s2mps14_devs[] = {
 	}
 };
 
+static const struct mfd_cell s2mps15_devs[] = {
+	{
+		.name = "s2mps15-regulator",
+	}, {
+		.name = "s2mps15-rtc",
+	}, {
+		.name = "s2mps13-clk",
+		.of_compatible = "samsung,s2mps13-clk",
+	},
+};
+
 static const struct mfd_cell s2mpa01_devs[] = {
 	{
 		.name = "s2mpa01-pmic",
@@ -104,7 +116,7 @@ static const struct mfd_cell s2mpa01_devs[] = {
 
 static const struct mfd_cell s2mpu02_devs[] = {
 	{
-		.name = "s2mpu02-pmic",
+		.name = "s2mpu02-regulator",
 	},
 };
 
@@ -122,6 +134,9 @@ static const struct of_device_id sec_dt_match[] = {
 		.compatible = "samsung,s2mps14-pmic",
 		.data = (void *)S2MPS14X,
 	}, {
+		.compatible = "samsung,s2mps15-pmic",
+		.data = (void *)S2MPS15X,
+	}, {
 		.compatible = "samsung,s2mpa01-pmic",
 		.data = (void *)S2MPA01,
 	}, {
@@ -223,6 +238,15 @@ static const struct regmap_config s2mps14_regmap_config = {
 	.cache_type = REGCACHE_FLAT,
 };
 
+static const struct regmap_config s2mps15_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = S2MPS15_REG_LDODSCH4,
+	.volatile_reg = s2mps11_volatile,
+	.cache_type = REGCACHE_FLAT,
+};
+
 static const struct regmap_config s2mpu02_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
@@ -384,6 +408,9 @@ static int sec_pmic_probe(struct i2c_client *i2c,
 	case S2MPS14X:
 		regmap = &s2mps14_regmap_config;
 		break;
+	case S2MPS15X:
+		regmap = &s2mps15_regmap_config;
+		break;
 	case S5M8763X:
 		regmap = &s5m8763_regmap_config;
 		break;
@@ -442,6 +469,10 @@ static int sec_pmic_probe(struct i2c_client *i2c,
 		sec_devs = s2mps14_devs;
 		num_sec_devs = ARRAY_SIZE(s2mps14_devs);
 		break;
+	case S2MPS15X:
+		sec_devs = s2mps15_devs;
+		num_sec_devs = ARRAY_SIZE(s2mps15_devs);
+		break;
 	case S2MPU02:
 		sec_devs = s2mpu02_devs;
 		num_sec_devs = ARRAY_SIZE(s2mpu02_devs);
@@ -505,7 +536,7 @@ static void sec_pmic_shutdown(struct i2c_client *i2c)
 #ifdef CONFIG_PM_SLEEP
 static int sec_pmic_suspend(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
@@ -526,7 +557,7 @@ static int sec_pmic_suspend(struct device *dev)
 
 static int sec_pmic_resume(struct device *dev)
 {
-	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
+	struct i2c_client *i2c = to_i2c_client(dev);
 	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
 
 	if (device_may_wakeup(dev))
diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index 806fa8dbb22d..d77de431cc50 100644
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -407,6 +407,11 @@ static const struct regmap_irq_chip s2mps14_irq_chip = {
 	S2MPS1X_IRQ_CHIP_COMMON_DATA,
 };
 
+static const struct regmap_irq_chip s2mps15_irq_chip = {
+	.name = "s2mps15",
+	S2MPS1X_IRQ_CHIP_COMMON_DATA,
+};
+
 static const struct regmap_irq_chip s2mpu02_irq_chip = {
 	.name = "s2mpu02",
 	.irqs = s2mpu02_irqs,
@@ -466,6 +471,9 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 	case S2MPS14X:
 		sec_irq_chip = &s2mps14_irq_chip;
 		break;
+	case S2MPS15X:
+		sec_irq_chip = &s2mps15_irq_chip;
+		break;
 	case S2MPU02:
 		sec_irq_chip = &s2mpu02_irq_chip;
 		break;
diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index b3e5c6f45105..9292202039ee 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -372,12 +372,6 @@ static struct platform_driver sta2x11_sctl_platform_driver = {
 	.probe		= sta2x11_sctl_probe,
 };
 
-static int __init sta2x11_sctl_init(void)
-{
-	pr_info("%s\n", __func__);
-	return platform_driver_register(&sta2x11_sctl_platform_driver);
-}
-
 static struct platform_driver sta2x11_platform_driver = {
 	.driver = {
 		.name	= STA2X11_MFD_APBREG_NAME,
@@ -385,12 +379,6 @@ static struct platform_driver sta2x11_platform_driver = {
 	.probe		= sta2x11_apbreg_probe,
 };
 
-static int __init sta2x11_apbreg_init(void)
-{
-	pr_info("%s\n", __func__);
-	return platform_driver_register(&sta2x11_platform_driver);
-}
-
 static struct platform_driver sta2x11_apb_soc_regs_platform_driver = {
 	.driver = {
 		.name	= STA2X11_MFD_APB_SOC_REGS_NAME,
@@ -398,12 +386,6 @@ static struct platform_driver sta2x11_apb_soc_regs_platform_driver = {
 	.probe		= sta2x11_apb_soc_regs_probe,
 };
 
-static int __init sta2x11_apb_soc_regs_init(void)
-{
-	pr_info("%s\n", __func__);
-	return platform_driver_register(&sta2x11_apb_soc_regs_platform_driver);
-}
-
 static struct platform_driver sta2x11_scr_platform_driver = {
 	.driver = {
 		.name = STA2X11_MFD_SCR_NAME,
@@ -411,13 +393,18 @@ static struct platform_driver sta2x11_scr_platform_driver = {
 	.probe = sta2x11_scr_probe,
 };
 
-static int __init sta2x11_scr_init(void)
+static struct platform_driver * const drivers[] = {
+	&sta2x11_platform_driver,
+	&sta2x11_sctl_platform_driver,
+	&sta2x11_apb_soc_regs_platform_driver,
+	&sta2x11_scr_platform_driver,
+};
+
+static int __init sta2x11_drivers_init(void)
 {
-	pr_info("%s\n", __func__);
-	return platform_driver_register(&sta2x11_scr_platform_driver);
+	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 
-
 /*
  * What follows are the PCI devices that host the above pdevs.
  * Each logic block is 4kB and they are all consecutive: we use this info.
@@ -664,10 +651,7 @@ static int __init sta2x11_mfd_init(void)
  * prepares platform drivers very early and probe the PCI device later,
  * but before other PCI devices.
  */
-subsys_initcall(sta2x11_apbreg_init);
-subsys_initcall(sta2x11_sctl_init);
-subsys_initcall(sta2x11_apb_soc_regs_init);
-subsys_initcall(sta2x11_scr_init);
+subsys_initcall(sta2x11_drivers_init);
 rootfs_initcall(sta2x11_mfd_init);
 
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 176bf0fa2685..b7aabeefab07 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -47,6 +47,7 @@ static struct syscon *of_syscon_register(struct device_node *np)
 	struct syscon *syscon;
 	struct regmap *regmap;
 	void __iomem *base;
+	u32 reg_io_width;
 	int ret;
 	struct regmap_config syscon_config = syscon_regmap_config;
 
@@ -69,6 +70,18 @@ static struct syscon *of_syscon_register(struct device_node *np)
 	 else if (of_property_read_bool(np, "little-endian"))
 		syscon_config.val_format_endian = REGMAP_ENDIAN_LITTLE;
 
+	/*
+	 * search for reg-io-width property in DT. If it is not provided,
+	 * default to 4 bytes. regmap_init_mmio will return an error if values
+	 * are invalid so there is no need to check them here.
+	 */
+	ret = of_property_read_u32(np, "reg-io-width", &reg_io_width);
+	if (ret)
+		reg_io_width = 4;
+
+	syscon_config.reg_stride = reg_io_width;
+	syscon_config.val_bits = reg_io_width * 8;
+
 	regmap = regmap_init_mmio(NULL, base, &syscon_config);
 	if (IS_ERR(regmap)) {
 		pr_err("regmap init failed\n");
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 8c84a513016b..1ecbfa40d1b3 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -437,8 +437,8 @@ static int tc6393xb_gpio_get(struct gpio_chip *chip,
 	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
 
 	/* XXX: does dsr also represent inputs? */
-	return tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8))
-		& TC_GPIO_BIT(offset);
+	return !!(tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8))
+		  & TC_GPIO_BIT(offset));
 }
 
 static void __tc6393xb_gpio_set(struct gpio_chip *chip,
diff --git a/drivers/mfd/tps65010.c b/drivers/mfd/tps65010.c
index 448f0a182dc4..677a127619d4 100644
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@ -499,11 +499,11 @@ static int tps65010_gpio_get(struct gpio_chip *chip, unsigned offset)
 	if (offset < 4) {
 		value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
 		if (value < 0)
-			return 0;
+			return value;
 		if (value & (1 << (offset + 4)))	/* output */
 			return !(value & (1 << offset));
 		else					/* input */
-			return (value & (1 << offset));
+			return !!(value & (1 << offset));
 	}
 
 	/* REVISIT we *could* report LED1/nPG and LED2 state ... */
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index f691d7ecad52..e0dd83fb95d3 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -133,7 +133,7 @@ static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
 	val = ucb1x00_reg_read(ucb, UCB_IO_DATA);
 	ucb1x00_disable(ucb);
 
-	return val & (1 << offset);
+	return !!(val & (1 << offset));
 }
 
 static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 2bb2d0467a92..c18e11f42b3f 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -762,9 +762,9 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x00000200, 0x0006 },    /* R512   - Mic Charge Pump 1 */
 	{ 0x00000210, 0x0184 },    /* R528   - LDO1 Control 1 */
 	{ 0x00000213, 0x03E4 },    /* R531   - LDO2 Control 1 */
-	{ 0x00000218, 0x01A6 },    /* R536   - Mic Bias Ctrl 1 */
-	{ 0x00000219, 0x01A6 },    /* R537   - Mic Bias Ctrl 2 */
-	{ 0x0000021A, 0x01A6 },    /* R538   - Mic Bias Ctrl 3 */
+	{ 0x00000218, 0x00E6 },    /* R536   - Mic Bias Ctrl 1 */
+	{ 0x00000219, 0x00E6 },    /* R537   - Mic Bias Ctrl 2 */
+	{ 0x0000021A, 0x00E6 },    /* R538   - Mic Bias Ctrl 3 */
 	{ 0x00000293, 0x0000 },    /* R659   - Accessory Detect Mode 1 */
 	{ 0x0000029B, 0x0028 },    /* R667   - Headphone Detect 1 */
 	{ 0x000002A2, 0x0000 },    /* R674   - Micd clamp control */
diff --git a/drivers/mfd/wm831x-otp.c b/drivers/mfd/wm831x-otp.c
index b90f3e06b6c9..ebac0027f8e0 100644
--- a/drivers/mfd/wm831x-otp.c
+++ b/drivers/mfd/wm831x-otp.c
@@ -47,20 +47,14 @@ static ssize_t wm831x_unique_id_show(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
 	struct wm831x *wm831x = dev_get_drvdata(dev);
-	int i, rval;
+	int rval;
 	char id[WM831X_UNIQUE_ID_LEN];
-	ssize_t ret = 0;
 
 	rval = wm831x_unique_id_read(wm831x, id);
 	if (rval < 0)
 		return 0;
 
-	for (i = 0; i < WM831X_UNIQUE_ID_LEN; i++)
-		ret += sprintf(&buf[ret], "%02x", buf[i]);
-
-	ret += sprintf(&buf[ret], "\n");
-
-	return ret;
+	return sprintf(buf, "%*phN\n", WM831X_UNIQUE_ID_LEN, id);
 }
 
 static DEVICE_ATTR(unique_id, 0444, wm831x_unique_id_show, NULL);
diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index 6982f603fadc..be2ac5ce349f 100644
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -1,4 +1,5 @@
-ccflags-y := -Werror -Wno-unused-const-variable
+ccflags-y			:= $(call cc-disable-warning, unused-const-variable)
+ccflags-$(CONFIG_PPC_WERROR)	+= -Werror
 
 cxl-y				+= main.o file.o irq.o fault.o native.o
 cxl-y				+= context.o sysfs.o debugfs.o pci.o trace.o
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 103baf0e0c5b..ea3eeb7011e1 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -25,7 +25,6 @@ struct cxl_context *cxl_dev_context_init(struct pci_dev *dev)
 
 	afu = cxl_pci_to_afu(dev);
 
-	get_device(&afu->dev);
 	ctx = cxl_context_alloc();
 	if (IS_ERR(ctx)) {
 		rc = PTR_ERR(ctx);
@@ -61,7 +60,6 @@ err_mapping:
 err_ctx:
 	kfree(ctx);
 err_dev:
-	put_device(&afu->dev);
 	return ERR_PTR(rc);
 }
 EXPORT_SYMBOL_GPL(cxl_dev_context_init);
@@ -87,8 +85,6 @@ int cxl_release_context(struct cxl_context *ctx)
 	if (ctx->status >= STARTED)
 		return -EBUSY;
 
-	put_device(&ctx->afu->dev);
-
 	cxl_context_free(ctx);
 
 	return 0;
@@ -176,7 +172,7 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed,
 
 	if (task) {
 		ctx->pid = get_task_pid(task, PIDTYPE_PID);
-		get_pid(ctx->pid);
+		ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID);
 		kernel = false;
 	}
 
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index 2faa1270d085..262b88eac414 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -42,7 +42,7 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
 	spin_lock_init(&ctx->sste_lock);
 	ctx->afu = afu;
 	ctx->master = master;
-	ctx->pid = NULL; /* Set in start work ioctl */
+	ctx->pid = ctx->glpid = NULL; /* Set in start work ioctl */
 	mutex_init(&ctx->mapping_lock);
 	ctx->mapping = mapping;
 
@@ -97,6 +97,12 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
 	ctx->pe = i;
 	ctx->elem = &ctx->afu->spa[i];
 	ctx->pe_inserted = false;
+
+	/*
+	 * take a ref on the afu so that it stays alive at-least till
+	 * this context is reclaimed inside reclaim_ctx.
+	 */
+	cxl_afu_get(afu);
 	return 0;
 }
 
@@ -211,7 +217,11 @@ int __detach_context(struct cxl_context *ctx)
 	WARN_ON(cxl_detach_process(ctx) &&
 		cxl_adapter_link_ok(ctx->afu->adapter));
 	flush_work(&ctx->fault_work); /* Only needed for dedicated process */
+
+	/* release the reference to the group leader and mm handling pid */
 	put_pid(ctx->pid);
+	put_pid(ctx->glpid);
+
 	cxl_ctx_put();
 	return 0;
 }
@@ -278,6 +288,9 @@ static void reclaim_ctx(struct rcu_head *rcu)
 	if (ctx->irq_bitmap)
 		kfree(ctx->irq_bitmap);
 
+	/* Drop ref to the afu device taken during cxl_context_init */
+	cxl_afu_put(ctx->afu);
+
 	kfree(ctx);
 }
 
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 0cfb9c129f27..a521bc72cec2 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -403,6 +403,18 @@ struct cxl_afu {
 	bool enabled;
 };
 
+/* AFU refcount management */
+static inline struct cxl_afu *cxl_afu_get(struct cxl_afu *afu)
+{
+
+	return (get_device(&afu->dev) == NULL) ? NULL : afu;
+}
+
+static inline void  cxl_afu_put(struct cxl_afu *afu)
+{
+	put_device(&afu->dev);
+}
+
 
 struct cxl_irq_name {
 	struct list_head list;
@@ -433,6 +445,9 @@ struct cxl_context {
 	unsigned int sst_size, sst_lru;
 
 	wait_queue_head_t wq;
+	/* pid of the group leader associated with the pid */
+	struct pid *glpid;
+	/* use mm context associated with this pid for ds faults */
 	struct pid *pid;
 	spinlock_t lock; /* Protects pending_irq_mask, pending_fault and fault_addr */
 	/* Only used in PR mode */
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 25a5418c55cb..81c3f75b7330 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -166,13 +166,92 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
 	cxl_ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
 }
 
+/*
+ * Returns the mm_struct corresponding to the context ctx via ctx->pid
+ * In case the task has exited we use the task group leader accessible
+ * via ctx->glpid to find the next task in the thread group that has a
+ * valid  mm_struct associated with it. If a task with valid mm_struct
+ * is found the ctx->pid is updated to use the task struct for subsequent
+ * translations. In case no valid mm_struct is found in the task group to
+ * service the fault a NULL is returned.
+ */
+static struct mm_struct *get_mem_context(struct cxl_context *ctx)
+{
+	struct task_struct *task = NULL;
+	struct mm_struct *mm = NULL;
+	struct pid *old_pid = ctx->pid;
+
+	if (old_pid == NULL) {
+		pr_warn("%s: Invalid context for pe=%d\n",
+			 __func__, ctx->pe);
+		return NULL;
+	}
+
+	task = get_pid_task(old_pid, PIDTYPE_PID);
+
+	/*
+	 * pid_alive may look racy but this saves us from costly
+	 * get_task_mm when the task is a zombie. In worst case
+	 * we may think a task is alive, which is about to die
+	 * but get_task_mm will return NULL.
+	 */
+	if (task != NULL && pid_alive(task))
+		mm = get_task_mm(task);
+
+	/* release the task struct that was taken earlier */
+	if (task)
+		put_task_struct(task);
+	else
+		pr_devel("%s: Context owning pid=%i for pe=%i dead\n",
+			__func__, pid_nr(old_pid), ctx->pe);
+
+	/*
+	 * If we couldn't find the mm context then use the group
+	 * leader to iterate over the task group and find a task
+	 * that gives us mm_struct.
+	 */
+	if (unlikely(mm == NULL && ctx->glpid != NULL)) {
+
+		rcu_read_lock();
+		task = pid_task(ctx->glpid, PIDTYPE_PID);
+		if (task)
+			do {
+				mm = get_task_mm(task);
+				if (mm) {
+					ctx->pid = get_task_pid(task,
+								PIDTYPE_PID);
+					break;
+				}
+				task = next_thread(task);
+			} while (task && !thread_group_leader(task));
+		rcu_read_unlock();
+
+		/* check if we switched pid */
+		if (ctx->pid != old_pid) {
+			if (mm)
+				pr_devel("%s:pe=%i switch pid %i->%i\n",
+					 __func__, ctx->pe, pid_nr(old_pid),
+					 pid_nr(ctx->pid));
+			else
+				pr_devel("%s:Cannot find mm for pid=%i\n",
+					 __func__, pid_nr(old_pid));
+
+			/* drop the reference to older pid */
+			put_pid(old_pid);
+		}
+	}
+
+	return mm;
+}
+
+
+
 void cxl_handle_fault(struct work_struct *fault_work)
 {
 	struct cxl_context *ctx =
 		container_of(fault_work, struct cxl_context, fault_work);
 	u64 dsisr = ctx->dsisr;
 	u64 dar = ctx->dar;
-	struct task_struct *task = NULL;
 	struct mm_struct *mm = NULL;
 
 	if (cxl_p2n_read(ctx->afu, CXL_PSL_DSISR_An) != dsisr ||
@@ -195,17 +274,17 @@ void cxl_handle_fault(struct work_struct *fault_work)
 		"DSISR: %#llx DAR: %#llx\n", ctx->pe, dsisr, dar);
 
 	if (!ctx->kernel) {
-		if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-			pr_devel("cxl_handle_fault unable to get task %i\n",
-				 pid_nr(ctx->pid));
+
+		mm = get_mem_context(ctx);
+		/* indicates all the thread in task group have exited */
+		if (mm == NULL) {
+			pr_devel("%s: unable to get mm for pe=%d pid=%i\n",
+				 __func__, ctx->pe, pid_nr(ctx->pid));
 			cxl_ack_ae(ctx);
 			return;
-		}
-		if (!(mm = get_task_mm(task))) {
-			pr_devel("cxl_handle_fault unable to get mm %i\n",
-				 pid_nr(ctx->pid));
-			cxl_ack_ae(ctx);
-			goto out;
+		} else {
+			pr_devel("Handling page fault for pe=%d pid=%i\n",
+				 ctx->pe, pid_nr(ctx->pid));
 		}
 	}
 
@@ -218,33 +297,22 @@ void cxl_handle_fault(struct work_struct *fault_work)
 
 	if (mm)
 		mmput(mm);
-out:
-	if (task)
-		put_task_struct(task);
 }
 
 static void cxl_prefault_one(struct cxl_context *ctx, u64 ea)
 {
-	int rc;
-	struct task_struct *task;
 	struct mm_struct *mm;
 
-	if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-		pr_devel("cxl_prefault_one unable to get task %i\n",
-			 pid_nr(ctx->pid));
-		return;
-	}
-	if (!(mm = get_task_mm(task))) {
+	mm = get_mem_context(ctx);
+	if (mm == NULL) {
 		pr_devel("cxl_prefault_one unable to get mm %i\n",
 			 pid_nr(ctx->pid));
-		put_task_struct(task);
 		return;
 	}
 
-	rc = cxl_fault_segment(ctx, mm, ea);
+	cxl_fault_segment(ctx, mm, ea);
 
 	mmput(mm);
-	put_task_struct(task);
 }
 
 static u64 next_segment(u64 ea, u64 vsid)
@@ -263,18 +331,13 @@ static void cxl_prefault_vma(struct cxl_context *ctx)
 	struct copro_slb slb;
 	struct vm_area_struct *vma;
 	int rc;
-	struct task_struct *task;
 	struct mm_struct *mm;
 
-	if (!(task = get_pid_task(ctx->pid, PIDTYPE_PID))) {
-		pr_devel("cxl_prefault_vma unable to get task %i\n",
-			 pid_nr(ctx->pid));
-		return;
-	}
-	if (!(mm = get_task_mm(task))) {
+	mm = get_mem_context(ctx);
+	if (mm == NULL) {
 		pr_devel("cxl_prefault_vm unable to get mm %i\n",
 			 pid_nr(ctx->pid));
-		goto out1;
+		return;
 	}
 
 	down_read(&mm->mmap_sem);
@@ -295,8 +358,6 @@ static void cxl_prefault_vma(struct cxl_context *ctx)
 	up_read(&mm->mmap_sem);
 
 	mmput(mm);
-out1:
-	put_task_struct(task);
 }
 
 void cxl_prefault(struct cxl_context *ctx, u64 wed)
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 7ccd2998be92..783337d22f36 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -67,7 +67,13 @@ static int __afu_open(struct inode *inode, struct file *file, bool master)
 		spin_unlock(&adapter->afu_list_lock);
 		goto err_put_adapter;
 	}
-	get_device(&afu->dev);
+
+	/*
+	 * taking a ref to the afu so that it doesn't go away
+	 * for rest of the function. This ref is released before
+	 * we return.
+	 */
+	cxl_afu_get(afu);
 	spin_unlock(&adapter->afu_list_lock);
 
 	if (!afu->current_mode)
@@ -90,13 +96,12 @@ static int __afu_open(struct inode *inode, struct file *file, bool master)
 	file->private_data = ctx;
 	cxl_ctx_get();
 
-	/* Our ref on the AFU will now hold the adapter */
-	put_device(&adapter->dev);
-
-	return 0;
+	/* indicate success */
+	rc = 0;
 
 err_put_afu:
-	put_device(&afu->dev);
+	/* release the ref taken earlier */
+	cxl_afu_put(afu);
 err_put_adapter:
 	put_device(&adapter->dev);
 	return rc;
@@ -131,8 +136,6 @@ int afu_release(struct inode *inode, struct file *file)
 		mutex_unlock(&ctx->mapping_lock);
 	}
 
-	put_device(&ctx->afu->dev);
-
 	/*
 	 * At this this point all bottom halfs have finished and we should be
 	 * getting no more IRQs from the hardware for this context.  Once it's
@@ -198,8 +201,12 @@ static long afu_ioctl_start_work(struct cxl_context *ctx,
 	 * where a process (master, some daemon, etc) has opened the chardev on
 	 * behalf of another process, so the AFU's mm gets bound to the process
 	 * that performs this ioctl and not the process that opened the file.
+	 * Also we grab the PID of the group leader so that if the task that
+	 * has performed the attach operation exits the mm context of the
+	 * process is still accessible.
 	 */
-	ctx->pid = get_pid(get_task_pid(current, PIDTYPE_PID));
+	ctx->pid = get_task_pid(current, PIDTYPE_PID);
+	ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID);
 
 	trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr);
 
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 85761d7eb333..4c1903f781fc 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -138,6 +138,7 @@ static const struct pci_device_id cxl_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x0477), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x044b), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x04cf), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_IBM, 0x0601), },
 	{ PCI_DEVICE_CLASS(0x120000, ~0), },
 
 	{ }
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index c241e15cacb1..cbd4331fb45c 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -203,7 +203,7 @@ static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
 	mask <<= shift;
 	val <<= shift;
 
-	v = (in_le32(ioaddr) & ~mask) || (val & mask);
+	v = (in_le32(ioaddr) & ~mask) | (val & mask);
 
 	out_le32(ioaddr, v);
 	return PCIBIOS_SUCCESSFUL;
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index b2f2486b3d75..677d0362f334 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -657,7 +657,9 @@ out:
  * @file: pointer to file structure
  * @band: band bitmap
  *
- * Return: poll mask
+ * Return: negative on error,
+ *         0 if it did no changes,
+ *         and positive a process was added or deleted
  */
 static int mei_fasync(int fd, struct file *file, int band)
 {
@@ -665,7 +667,7 @@ static int mei_fasync(int fd, struct file *file, int band)
 	struct mei_cl *cl = file->private_data;
 
 	if (!mei_cl_is_connected(cl))
-		return POLLERR;
+		return -ENODEV;
 
 	return fasync_helper(fd, file, band, &cl->ev_async);
 }
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index a03ad2951c7b..42cc953309f1 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -112,7 +112,7 @@ config MTD_CMDLINE_PARTS
 
 config MTD_AFS_PARTS
 	tristate "ARM Firmware Suite partition parsing"
-	depends on ARM
+	depends on (ARM || ARM64)
 	---help---
 	  The ARM Firmware Suite allows the user to divide flash devices into
 	  multiple 'images'. Each such image has a header containing its name
diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c
index 96a33e3f7b00..d61b7edfc938 100644
--- a/drivers/mtd/afs.c
+++ b/drivers/mtd/afs.c
@@ -34,7 +34,9 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
 
-struct footer_struct {
+#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F
+
+struct footer_v1 {
 	u32 image_info_base;	/* Address of first word of ImageFooter  */
 	u32 image_start;	/* Start of area reserved by this footer */
 	u32 signature;		/* 'Magic' number proves it's a footer   */
@@ -42,7 +44,7 @@ struct footer_struct {
 	u32 checksum;		/* Just this structure                   */
 };
 
-struct image_info_struct {
+struct image_info_v1 {
 	u32 bootFlags;		/* Boot flags, compression etc.          */
 	u32 imageNumber;	/* Unique number, selects for boot etc.  */
 	u32 loadAddress;	/* Address program should be loaded to   */
@@ -67,10 +69,10 @@ static u32 word_sum(void *words, int num)
 }
 
 static int
-afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
-		u_int off, u_int mask)
+afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
+		   u_int off, u_int mask)
 {
-	struct footer_struct fs;
+	struct footer_v1 fs;
 	u_int ptr = off + mtd->erasesize - sizeof(fs);
 	size_t sz;
 	int ret;
@@ -85,25 +87,23 @@ afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
 		return ret;
 	}
 
-	ret = 1;
-
 	/*
 	 * Does it contain the magic number?
 	 */
-	if (fs.signature != 0xa0ffff9f)
-		ret = 0;
+	if (fs.signature != AFSV1_FOOTER_MAGIC)
+		return 0;
 
 	/*
 	 * Check the checksum.
 	 */
 	if (word_sum(&fs, sizeof(fs) / sizeof(u32)) != 0xffffffff)
-		ret = 0;
+		return 0;
 
 	/*
 	 * Don't touch the SIB.
 	 */
 	if (fs.type == 2)
-		ret = 0;
+		return 0;
 
 	*iis_start = fs.image_info_base & mask;
 	*img_start = fs.image_start & mask;
@@ -113,20 +113,20 @@ afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
 	 * be located after the footer structure.
 	 */
 	if (*iis_start >= ptr)
-		ret = 0;
+		return 0;
 
 	/*
 	 * Check the start of this image.  The image
 	 * data can not be located after this block.
 	 */
 	if (*img_start > off)
-		ret = 0;
+		return 0;
 
-	return ret;
+	return 1;
 }
 
 static int
-afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr)
+afs_read_iis_v1(struct mtd_info *mtd, struct image_info_v1 *iis, u_int ptr)
 {
 	size_t sz;
 	int ret, i;
@@ -162,7 +162,7 @@ afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr)
 }
 
 static int parse_afs_partitions(struct mtd_info *mtd,
-				struct mtd_partition **pparts,
+				const struct mtd_partition **pparts,
 				struct mtd_part_parser_data *data)
 {
 	struct mtd_partition *parts;
@@ -182,24 +182,23 @@ static int parse_afs_partitions(struct mtd_info *mtd,
 	 * the strings.
 	 */
 	for (idx = off = sz = 0; off < mtd->size; off += mtd->erasesize) {
-		struct image_info_struct iis;
+		struct image_info_v1 iis;
 		u_int iis_ptr, img_ptr;
 
-		ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
-		if (ret < 0)
-			break;
-		if (ret == 0)
-			continue;
-
-		ret = afs_read_iis(mtd, &iis, iis_ptr);
+		ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask);
 		if (ret < 0)
 			break;
-		if (ret == 0)
-			continue;
-
-		sz += sizeof(struct mtd_partition);
-		sz += strlen(iis.name) + 1;
-		idx += 1;
+		if (ret) {
+			ret = afs_read_iis_v1(mtd, &iis, iis_ptr);
+			if (ret < 0)
+				break;
+			if (ret == 0)
+				continue;
+
+			sz += sizeof(struct mtd_partition);
+			sz += strlen(iis.name) + 1;
+			idx += 1;
+		}
 	}
 
 	if (!sz)
@@ -215,18 +214,18 @@ static int parse_afs_partitions(struct mtd_info *mtd,
 	 * Identify the partitions
 	 */
 	for (idx = off = 0; off < mtd->size; off += mtd->erasesize) {
-		struct image_info_struct iis;
+		struct image_info_v1 iis;
 		u_int iis_ptr, img_ptr;
 
 		/* Read the footer. */
-		ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask);
+		ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask);
 		if (ret < 0)
 			break;
 		if (ret == 0)
 			continue;
 
 		/* Read the image info block */
-		ret = afs_read_iis(mtd, &iis, iis_ptr);
+		ret = afs_read_iis_v1(mtd, &iis, iis_ptr);
 		if (ret < 0)
 			break;
 		if (ret == 0)
@@ -257,25 +256,10 @@ static int parse_afs_partitions(struct mtd_info *mtd,
 }
 
 static struct mtd_part_parser afs_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = parse_afs_partitions,
 	.name = "afs",
 };
-
-static int __init afs_parser_init(void)
-{
-	register_mtd_parser(&afs_parser);
-	return 0;
-}
-
-static void __exit afs_parser_exit(void)
-{
-	deregister_mtd_parser(&afs_parser);
-}
-
-module_init(afs_parser_init);
-module_exit(afs_parser_exit);
-
+module_mtd_part_parser(afs_parser);
 
 MODULE_AUTHOR("ARM Ltd");
 MODULE_DESCRIPTION("ARM Firmware Suite partition parser");
diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c
index 7c9172ad2621..90575deff0ae 100644
--- a/drivers/mtd/ar7part.c
+++ b/drivers/mtd/ar7part.c
@@ -43,7 +43,7 @@ struct ar7_bin_rec {
 };
 
 static int create_mtd_partitions(struct mtd_info *master,
-				 struct mtd_partition **pparts,
+				 const struct mtd_partition **pparts,
 				 struct mtd_part_parser_data *data)
 {
 	struct ar7_bin_rec header;
@@ -132,24 +132,10 @@ static int create_mtd_partitions(struct mtd_info *master,
 }
 
 static struct mtd_part_parser ar7_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = create_mtd_partitions,
 	.name = "ar7part",
 };
-
-static int __init ar7_parser_init(void)
-{
-	register_mtd_parser(&ar7_parser);
-	return 0;
-}
-
-static void __exit ar7_parser_exit(void)
-{
-	deregister_mtd_parser(&ar7_parser);
-}
-
-module_init(ar7_parser_init);
-module_exit(ar7_parser_exit);
+module_mtd_part_parser(ar7_parser);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR(	"Felix Fietkau <nbd@openwrt.org>, "
diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index c0720c1ee4c9..8282f47bcf5d 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -82,7 +82,7 @@ out_default:
 }
 
 static int bcm47xxpart_parse(struct mtd_info *master,
-			     struct mtd_partition **pparts,
+			     const struct mtd_partition **pparts,
 			     struct mtd_part_parser_data *data)
 {
 	struct mtd_partition *parts;
@@ -313,24 +313,10 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 };
 
 static struct mtd_part_parser bcm47xxpart_mtd_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = bcm47xxpart_parse,
 	.name = "bcm47xxpart",
 };
-
-static int __init bcm47xxpart_init(void)
-{
-	register_mtd_parser(&bcm47xxpart_mtd_parser);
-	return 0;
-}
-
-static void __exit bcm47xxpart_exit(void)
-{
-	deregister_mtd_parser(&bcm47xxpart_mtd_parser);
-}
-
-module_init(bcm47xxpart_init);
-module_exit(bcm47xxpart_exit);
+module_mtd_part_parser(bcm47xxpart_mtd_parser);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MTD partitioning for BCM47XX flash memories");
diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c
index b2443f7031c9..440936998593 100644
--- a/drivers/mtd/bcm63xxpart.c
+++ b/drivers/mtd/bcm63xxpart.c
@@ -68,7 +68,7 @@ static int bcm63xx_detect_cfe(struct mtd_info *master)
 }
 
 static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
-					struct mtd_partition **pparts,
+					const struct mtd_partition **pparts,
 					struct mtd_part_parser_data *data)
 {
 	/* CFE, NVRAM and global Linux are always present */
@@ -214,24 +214,10 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
 };
 
 static struct mtd_part_parser bcm63xx_cfe_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = bcm63xx_parse_cfe_partitions,
 	.name = "bcm63xxpart",
 };
-
-static int __init bcm63xx_cfe_parser_init(void)
-{
-	register_mtd_parser(&bcm63xx_cfe_parser);
-	return 0;
-}
-
-static void __exit bcm63xx_cfe_parser_exit(void)
-{
-	deregister_mtd_parser(&bcm63xx_cfe_parser);
-}
-
-module_init(bcm63xx_cfe_parser_init);
-module_exit(bcm63xx_cfe_parser_exit);
+module_mtd_part_parser(bcm63xx_cfe_parser);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>");
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index 54479c481a7a..3b3dabce58de 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -67,6 +67,10 @@ endchoice
 config MTD_CFI_GEOMETRY
 	bool "Specific CFI Flash geometry selection"
 	depends on MTD_CFI_ADV_OPTIONS
+	select MTD_MAP_BANK_WIDTH_1 if  !(MTD_MAP_BANK_WIDTH_2 || \
+		 MTD_MAP_BANK_WIDTH_4  || MTD_MAP_BANK_WIDTH_8 || \
+		 MTD_MAP_BANK_WIDTH_16 || MTD_MAP_BANK_WIDTH_32)
+	select MTD_CFI_I1 if !(MTD_CFI_I2 || MTD_CFI_I4 || MTD_CFI_I8)
 	help
 	  This option does not affect the code directly, but will enable
 	  some other configuration options which would allow you to reduce
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 286b97a304cf..5e1b68cbcd0a 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -596,7 +596,7 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
 	mtd->size = devsize * cfi->numchips;
 
 	mtd->numeraseregions = cfi->cfiq->NumEraseRegions * cfi->numchips;
-	mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info)
+	mtd->eraseregions = kzalloc(sizeof(struct mtd_erase_region_info)
 			* mtd->numeraseregions, GFP_KERNEL);
 	if (!mtd->eraseregions)
 		goto setup_err;
@@ -614,6 +614,8 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].erasesize = ersize;
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].numblocks = ernum;
 			mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap = kmalloc(ernum / 8 + 1, GFP_KERNEL);
+			if (!mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap)
+				goto setup_err;
 		}
 		offset += (ersize * ernum);
 	}
@@ -650,6 +652,10 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
 	return mtd;
 
  setup_err:
+	if (mtd->eraseregions)
+		for (i=0; i<cfi->cfiq->NumEraseRegions; i++)
+			for (j=0; j<cfi->numchips; j++)
+				kfree(mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap);
 	kfree(mtd->eraseregions);
 	kfree(mtd);
 	kfree(cfi->cmdset_priv);
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index c3624eb571d1..9dca881bb378 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -615,11 +615,9 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
 
 				for (i=0; i<cfi->cfiq->NumEraseRegions / 2; i++) {
 					int j = (cfi->cfiq->NumEraseRegions-1)-i;
-					__u32 swap;
 
-					swap = cfi->cfiq->EraseRegionInfo[i];
-					cfi->cfiq->EraseRegionInfo[i] = cfi->cfiq->EraseRegionInfo[j];
-					cfi->cfiq->EraseRegionInfo[j] = swap;
+					swap(cfi->cfiq->EraseRegionInfo[i],
+					     cfi->cfiq->EraseRegionInfo[j]);
 				}
 			}
 			/* Set the default CFI lock/unlock addresses */
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index 08f62987cc37..fbd5affc0acf 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -304,7 +304,7 @@ static int mtdpart_setup_real(char *s)
  * the first one in the chain if a NULL mtd_id is passed in.
  */
 static int parse_cmdline_partitions(struct mtd_info *master,
-				    struct mtd_partition **pparts,
+				    const struct mtd_partition **pparts,
 				    struct mtd_part_parser_data *data)
 {
 	unsigned long long offset;
@@ -382,7 +382,6 @@ static int __init mtdpart_setup(char *s)
 __setup("mtdparts=", mtdpart_setup);
 
 static struct mtd_part_parser cmdline_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = parse_cmdline_partitions,
 	.name = "cmdlinepart",
 };
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index fe9ceb7b5405..c9c3b7fa3051 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -152,22 +152,6 @@ static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 	return 0;
 }
 
-static int m25p80_erase(struct spi_nor *nor, loff_t offset)
-{
-	struct m25p *flash = nor->priv;
-
-	dev_dbg(nor->dev, "%dKiB at 0x%08x\n",
-		flash->spi_nor.mtd.erasesize / 1024, (u32)offset);
-
-	/* Set up command buffer. */
-	flash->command[0] = nor->erase_opcode;
-	m25p_addr2cmd(nor, offset, flash->command);
-
-	spi_write(flash->spi, flash->command, m25p_cmdsz(nor));
-
-	return 0;
-}
-
 /*
  * board specific setup should have ensured the SPI clock used here
  * matches what the READ command supports, at least until this driver
@@ -175,12 +159,11 @@ static int m25p80_erase(struct spi_nor *nor, loff_t offset)
  */
 static int m25p_probe(struct spi_device *spi)
 {
-	struct mtd_part_parser_data	ppdata;
 	struct flash_platform_data	*data;
 	struct m25p *flash;
 	struct spi_nor *nor;
 	enum read_mode mode = SPI_NOR_NORMAL;
-	char *flash_name = NULL;
+	char *flash_name;
 	int ret;
 
 	data = dev_get_platdata(&spi->dev);
@@ -194,12 +177,11 @@ static int m25p_probe(struct spi_device *spi)
 	/* install the hooks */
 	nor->read = m25p80_read;
 	nor->write = m25p80_write;
-	nor->erase = m25p80_erase;
 	nor->write_reg = m25p80_write_reg;
 	nor->read_reg = m25p80_read_reg;
 
 	nor->dev = &spi->dev;
-	nor->flash_node = spi->dev.of_node;
+	spi_nor_set_flash_node(nor, spi->dev.of_node);
 	nor->priv = flash;
 
 	spi_set_drvdata(spi, flash);
@@ -220,6 +202,8 @@ static int m25p_probe(struct spi_device *spi)
 	 */
 	if (data && data->type)
 		flash_name = data->type;
+	else if (!strcmp(spi->modalias, "spi-nor"))
+		flash_name = NULL; /* auto-detect */
 	else
 		flash_name = spi->modalias;
 
@@ -227,11 +211,8 @@ static int m25p_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ppdata.of_node = spi->dev.of_node;
-
-	return mtd_device_parse_register(&nor->mtd, NULL, &ppdata,
-			data ? data->parts : NULL,
-			data ? data->nr_parts : 0);
+	return mtd_device_register(&nor->mtd, data ? data->parts : NULL,
+				   data ? data->nr_parts : 0);
 }
 
 
@@ -257,14 +238,21 @@ static int m25p_remove(struct spi_device *spi)
  */
 static const struct spi_device_id m25p_ids[] = {
 	/*
+	 * Allow non-DT platform devices to bind to the "spi-nor" modalias, and
+	 * hack around the fact that the SPI core does not provide uevent
+	 * matching for .of_match_table
+	 */
+	{"spi-nor"},
+
+	/*
 	 * Entries not used in DTs that should be safe to drop after replacing
-	 * them with "nor-jedec" in platform data.
+	 * them with "spi-nor" in platform data.
 	 */
 	{"s25sl064a"},	{"w25x16"},	{"m25p10"},	{"m25px64"},
 
 	/*
-	 * Entries that were used in DTs without "nor-jedec" fallback and should
-	 * be kept for backward compatibility.
+	 * Entries that were used in DTs without "jedec,spi-nor" fallback and
+	 * should be kept for backward compatibility.
 	 */
 	{"at25df321a"},	{"at25df641"},	{"at26df081a"},
 	{"mr25h256"},
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index e4a88715a844..f9e9bd1cfaa0 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -624,7 +624,6 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
 {
 	struct dataflash		*priv;
 	struct mtd_info			*device;
-	struct mtd_part_parser_data	ppdata;
 	struct flash_platform_data	*pdata = dev_get_platdata(&spi->dev);
 	char				*otp_tag = "";
 	int				err = 0;
@@ -656,6 +655,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
 	device->priv = priv;
 
 	device->dev.parent = &spi->dev;
+	mtd_set_of_node(device, spi->dev.of_node);
 
 	if (revision >= 'c')
 		otp_tag = otp_setup(device, revision);
@@ -665,8 +665,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
 			pagesize, otp_tag);
 	spi_set_drvdata(spi, priv);
 
-	ppdata.of_node = spi->dev.of_node;
-	err = mtd_device_parse_register(device, NULL, &ppdata,
+	err = mtd_device_register(device,
 			pdata ? pdata->parts : NULL,
 			pdata ? pdata->nr_parts : 0);
 
diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c
index 64c7458344d4..dd5069876537 100644
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -810,7 +810,6 @@ static int spear_smi_setup_banks(struct platform_device *pdev,
 				 u32 bank, struct device_node *np)
 {
 	struct spear_smi *dev = platform_get_drvdata(pdev);
-	struct mtd_part_parser_data ppdata = {};
 	struct spear_smi_flash_info *flash_info;
 	struct spear_smi_plat_data *pdata;
 	struct spear_snor_flash *flash;
@@ -855,6 +854,7 @@ static int spear_smi_setup_banks(struct platform_device *pdev,
 		flash->mtd.name = flash_devices[flash_index].name;
 
 	flash->mtd.dev.parent = &pdev->dev;
+	mtd_set_of_node(&flash->mtd, np);
 	flash->mtd.type = MTD_NORFLASH;
 	flash->mtd.writesize = 1;
 	flash->mtd.flags = MTD_CAP_NORFLASH;
@@ -881,10 +881,8 @@ static int spear_smi_setup_banks(struct platform_device *pdev,
 		count = flash_info->nr_partitions;
 	}
 #endif
-	ppdata.of_node = np;
 
-	ret = mtd_device_parse_register(&flash->mtd, NULL, &ppdata, parts,
-					count);
+	ret = mtd_device_register(&flash->mtd, parts, count);
 	if (ret) {
 		dev_err(&dev->pdev->dev, "Err MTD partition=%d\n", ret);
 		return ret;
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 3060025c8af4..5454b4113589 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -2025,7 +2025,6 @@ boot_device_fail:
 static int stfsm_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
 	struct flash_info *info;
 	struct resource *res;
 	struct stfsm *fsm;
@@ -2035,7 +2034,6 @@ static int stfsm_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "No DT found\n");
 		return -EINVAL;
 	}
-	ppdata.of_node = np;
 
 	fsm = devm_kzalloc(&pdev->dev, sizeof(*fsm), GFP_KERNEL);
 	if (!fsm)
@@ -2106,6 +2104,7 @@ static int stfsm_probe(struct platform_device *pdev)
 
 	fsm->mtd.name		= info->name;
 	fsm->mtd.dev.parent	= &pdev->dev;
+	mtd_set_of_node(&fsm->mtd, np);
 	fsm->mtd.type		= MTD_NORFLASH;
 	fsm->mtd.writesize	= 4;
 	fsm->mtd.writebufsize	= fsm->mtd.writesize;
@@ -2124,7 +2123,7 @@ static int stfsm_probe(struct platform_device *pdev)
 		(long long)fsm->mtd.size, (long long)(fsm->mtd.size >> 20),
 		fsm->mtd.erasesize, (fsm->mtd.erasesize >> 10));
 
-	return mtd_device_parse_register(&fsm->mtd, NULL, &ppdata, NULL, 0);
+	return mtd_device_register(&fsm->mtd, NULL, 0);
 }
 
 static int stfsm_remove(struct platform_device *pdev)
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index dabf08450d0b..9fb3b0dcdac2 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -571,12 +571,8 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
 
 
     /* Update the maps and usage stats*/
-    i = xfer->EraseCount;
-    xfer->EraseCount = eun->EraseCount;
-    eun->EraseCount = i;
-    i = xfer->Offset;
-    xfer->Offset = eun->Offset;
-    eun->Offset = i;
+    swap(xfer->EraseCount, eun->EraseCount);
+    swap(xfer->Offset, eun->Offset);
     part->FreeTotal -= eun->Free;
     part->FreeTotal += free;
     eun->Free = free;
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 93852054977e..c8febb326fa6 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -110,7 +110,6 @@ ltq_copy_to(struct map_info *map, unsigned long to,
 static int
 ltq_mtd_probe(struct platform_device *pdev)
 {
-	struct mtd_part_parser_data ppdata;
 	struct ltq_mtd *ltq_mtd;
 	struct cfi_private *cfi;
 	int err;
@@ -161,13 +160,13 @@ ltq_mtd_probe(struct platform_device *pdev)
 	}
 
 	ltq_mtd->mtd->dev.parent = &pdev->dev;
+	mtd_set_of_node(ltq_mtd->mtd, pdev->dev.of_node);
 
 	cfi = ltq_mtd->map->fldrv_priv;
 	cfi->addr_unlock1 ^= 1;
 	cfi->addr_unlock2 ^= 1;
 
-	ppdata.of_node = pdev->dev.of_node;
-	err = mtd_device_parse_register(ltq_mtd->mtd, NULL, &ppdata, NULL, 0);
+	err = mtd_device_register(ltq_mtd->mtd, NULL, 0);
 	if (err) {
 		dev_err(&pdev->dev, "failed to add partitions\n");
 		goto err_destroy;
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index e46b4e983666..70c453144f00 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -166,7 +166,6 @@ static int of_flash_probe(struct platform_device *dev)
 	int reg_tuple_size;
 	struct mtd_info **mtd_list = NULL;
 	resource_size_t res_size;
-	struct mtd_part_parser_data ppdata;
 	bool map_indirect;
 	const char *mtd_name = NULL;
 
@@ -310,13 +309,14 @@ static int of_flash_probe(struct platform_device *dev)
 	if (err)
 		goto err_out;
 
-	ppdata.of_node = dp;
+	info->cmtd->dev.parent = &dev->dev;
+	mtd_set_of_node(info->cmtd, dp);
 	part_probe_types = of_get_probes(dp);
 	if (!part_probe_types) {
 		err = -ENOMEM;
 		goto err_out;
 	}
-	mtd_device_parse_register(info->cmtd, part_probe_types, &ppdata,
+	mtd_device_parse_register(info->cmtd, part_probe_types, NULL,
 			NULL, 0);
 	of_free_probes(part_probe_types);
 
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index ffa288474820..309625130b21 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -32,6 +32,7 @@
 #include <linux/err.h>
 #include <linux/ioctl.h>
 #include <linux/init.h>
+#include <linux/of.h>
 #include <linux/proc_fs.h>
 #include <linux/idr.h>
 #include <linux/backing-dev.h>
@@ -445,6 +446,7 @@ int add_mtd_device(struct mtd_info *mtd)
 	mtd->dev.devt = MTD_DEVT(i);
 	dev_set_name(&mtd->dev, "mtd%d", i);
 	dev_set_drvdata(&mtd->dev, mtd);
+	of_node_get(mtd_get_of_node(mtd));
 	error = device_register(&mtd->dev);
 	if (error)
 		goto fail_added;
@@ -467,6 +469,7 @@ int add_mtd_device(struct mtd_info *mtd)
 	return 0;
 
 fail_added:
+	of_node_put(mtd_get_of_node(mtd));
 	idr_remove(&mtd_idr, i);
 fail_locked:
 	mutex_unlock(&mtd_table_mutex);
@@ -508,6 +511,7 @@ int del_mtd_device(struct mtd_info *mtd)
 		device_unregister(&mtd->dev);
 
 		idr_remove(&mtd_idr, mtd->index);
+		of_node_put(mtd_get_of_node(mtd));
 
 		module_put(THIS_MODULE);
 		ret = 0;
@@ -519,9 +523,10 @@ out_error:
 }
 
 static int mtd_add_device_partitions(struct mtd_info *mtd,
-				     struct mtd_partition *real_parts,
-				     int nbparts)
+				     struct mtd_partitions *parts)
 {
+	const struct mtd_partition *real_parts = parts->parts;
+	int nbparts = parts->nr_parts;
 	int ret;
 
 	if (nbparts == 0 || IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER)) {
@@ -590,29 +595,29 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
 			      const struct mtd_partition *parts,
 			      int nr_parts)
 {
+	struct mtd_partitions parsed;
 	int ret;
-	struct mtd_partition *real_parts = NULL;
 
 	mtd_set_dev_defaults(mtd);
 
-	ret = parse_mtd_partitions(mtd, types, &real_parts, parser_data);
-	if (ret <= 0 && nr_parts && parts) {
-		real_parts = kmemdup(parts, sizeof(*parts) * nr_parts,
-				     GFP_KERNEL);
-		if (!real_parts)
-			ret = -ENOMEM;
-		else
-			ret = nr_parts;
-	}
-	/* Didn't come up with either parsed OR fallback partitions */
-	if (ret < 0) {
+	memset(&parsed, 0, sizeof(parsed));
+
+	ret = parse_mtd_partitions(mtd, types, &parsed, parser_data);
+	if ((ret < 0 || parsed.nr_parts == 0) && parts && nr_parts) {
+		/* Fall back to driver-provided partitions */
+		parsed = (struct mtd_partitions){
+			.parts		= parts,
+			.nr_parts	= nr_parts,
+		};
+	} else if (ret < 0) {
+		/* Didn't come up with parsed OR fallback partitions */
 		pr_info("mtd: failed to find partitions; one or more parsers reports errors (%d)\n",
 			ret);
 		/* Don't abort on errors; we can still use unpartitioned MTD */
-		ret = 0;
+		memset(&parsed, 0, sizeof(parsed));
 	}
 
-	ret = mtd_add_device_partitions(mtd, real_parts, ret);
+	ret = mtd_add_device_partitions(mtd, &parsed);
 	if (ret)
 		goto out;
 
@@ -632,7 +637,8 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
 	}
 
 out:
-	kfree(real_parts);
+	/* Cleanup any parsed partitions */
+	mtd_part_parser_cleanup(&parsed);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(mtd_device_parse_register);
diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h
index 7b0353399a10..55fdb8e1fd2a 100644
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -10,10 +10,15 @@ int add_mtd_device(struct mtd_info *mtd);
 int del_mtd_device(struct mtd_info *mtd);
 int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
 int del_mtd_partitions(struct mtd_info *);
+
+struct mtd_partitions;
+
 int parse_mtd_partitions(struct mtd_info *master, const char * const *types,
-			 struct mtd_partition **pparts,
+			 struct mtd_partitions *pparts,
 			 struct mtd_part_parser_data *data);
 
+void mtd_part_parser_cleanup(struct mtd_partitions *parts);
+
 int __init init_mtdchar(void);
 void __exit cleanup_mtdchar(void);
 
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index f8ba153f63bf..10bf304027dd 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -48,9 +48,12 @@ struct mtd_part {
 
 /*
  * Given a pointer to the MTD object in the mtd_part structure, we can retrieve
- * the pointer to that structure with this macro.
+ * the pointer to that structure.
  */
-#define PART(x)  ((struct mtd_part *)(x))
+static inline struct mtd_part *mtd_to_part(const struct mtd_info *mtd)
+{
+	return container_of(mtd, struct mtd_part, mtd);
+}
 
 
 /*
@@ -61,7 +64,7 @@ struct mtd_part {
 static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
 		size_t *retlen, u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	struct mtd_ecc_stats stats;
 	int res;
 
@@ -80,7 +83,7 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
 static int part_point(struct mtd_info *mtd, loff_t from, size_t len,
 		size_t *retlen, void **virt, resource_size_t *phys)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 
 	return part->master->_point(part->master, from + part->offset, len,
 				    retlen, virt, phys);
@@ -88,7 +91,7 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len,
 
 static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 
 	return part->master->_unpoint(part->master, from + part->offset, len);
 }
@@ -98,7 +101,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
 					    unsigned long offset,
 					    unsigned long flags)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 
 	offset += part->offset;
 	return part->master->_get_unmapped_area(part->master, len, offset,
@@ -108,7 +111,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
 static int part_read_oob(struct mtd_info *mtd, loff_t from,
 		struct mtd_oob_ops *ops)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	int res;
 
 	if (from >= mtd->size)
@@ -146,7 +149,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
 static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_read_user_prot_reg(part->master, from, len,
 						 retlen, buf);
 }
@@ -154,7 +157,7 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
 static int part_get_user_prot_info(struct mtd_info *mtd, size_t len,
 				   size_t *retlen, struct otp_info *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_get_user_prot_info(part->master, len, retlen,
 						 buf);
 }
@@ -162,7 +165,7 @@ static int part_get_user_prot_info(struct mtd_info *mtd, size_t len,
 static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_read_fact_prot_reg(part->master, from, len,
 						 retlen, buf);
 }
@@ -170,7 +173,7 @@ static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
 static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len,
 				   size_t *retlen, struct otp_info *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_get_fact_prot_info(part->master, len, retlen,
 						 buf);
 }
@@ -178,7 +181,7 @@ static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len,
 static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
 		size_t *retlen, const u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_write(part->master, to + part->offset, len,
 				    retlen, buf);
 }
@@ -186,7 +189,7 @@ static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
 static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
 		size_t *retlen, const u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_panic_write(part->master, to + part->offset, len,
 					  retlen, buf);
 }
@@ -194,7 +197,7 @@ static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
 static int part_write_oob(struct mtd_info *mtd, loff_t to,
 		struct mtd_oob_ops *ops)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 
 	if (to >= mtd->size)
 		return -EINVAL;
@@ -206,7 +209,7 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to,
 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_write_user_prot_reg(part->master, from, len,
 						  retlen, buf);
 }
@@ -214,21 +217,21 @@ static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
 static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_lock_user_prot_reg(part->master, from, len);
 }
 
 static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,
 		unsigned long count, loff_t to, size_t *retlen)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_writev(part->master, vecs, count,
 				     to + part->offset, retlen);
 }
 
 static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	int ret;
 
 	instr->addr += part->offset;
@@ -244,7 +247,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 void mtd_erase_callback(struct erase_info *instr)
 {
 	if (instr->mtd->_erase == part_erase) {
-		struct mtd_part *part = PART(instr->mtd);
+		struct mtd_part *part = mtd_to_part(instr->mtd);
 
 		if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
 			instr->fail_addr -= part->offset;
@@ -257,57 +260,57 @@ EXPORT_SYMBOL_GPL(mtd_erase_callback);
 
 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_lock(part->master, ofs + part->offset, len);
 }
 
 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_unlock(part->master, ofs + part->offset, len);
 }
 
 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_is_locked(part->master, ofs + part->offset, len);
 }
 
 static void part_sync(struct mtd_info *mtd)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	part->master->_sync(part->master);
 }
 
 static int part_suspend(struct mtd_info *mtd)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return part->master->_suspend(part->master);
 }
 
 static void part_resume(struct mtd_info *mtd)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	part->master->_resume(part->master);
 }
 
 static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	ofs += part->offset;
 	return part->master->_block_isreserved(part->master, ofs);
 }
 
 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	ofs += part->offset;
 	return part->master->_block_isbad(part->master, ofs);
 }
 
 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	int res;
 
 	ofs += part->offset;
@@ -558,7 +561,7 @@ static ssize_t mtd_partition_offset_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct mtd_info *mtd = dev_get_drvdata(dev);
-	struct mtd_part *part = PART(mtd);
+	struct mtd_part *part = mtd_to_part(mtd);
 	return snprintf(buf, PAGE_SIZE, "%lld\n", part->offset);
 }
 
@@ -596,11 +599,10 @@ int mtd_add_partition(struct mtd_info *master, const char *name,
 	if (length <= 0)
 		return -EINVAL;
 
+	memset(&part, 0, sizeof(part));
 	part.name = name;
 	part.size = length;
 	part.offset = offset;
-	part.mask_flags = 0;
-	part.ecclayout = NULL;
 
 	new = allocate_partition(master, &part, -1, offset);
 	if (IS_ERR(new))
@@ -685,7 +687,7 @@ int add_mtd_partitions(struct mtd_info *master,
 static DEFINE_SPINLOCK(part_parser_lock);
 static LIST_HEAD(part_parsers);
 
-static struct mtd_part_parser *get_partition_parser(const char *name)
+static struct mtd_part_parser *mtd_part_parser_get(const char *name)
 {
 	struct mtd_part_parser *p, *ret = NULL;
 
@@ -702,15 +704,35 @@ static struct mtd_part_parser *get_partition_parser(const char *name)
 	return ret;
 }
 
-#define put_partition_parser(p) do { module_put((p)->owner); } while (0)
+static inline void mtd_part_parser_put(const struct mtd_part_parser *p)
+{
+	module_put(p->owner);
+}
+
+/*
+ * Many partition parsers just expected the core to kfree() all their data in
+ * one chunk. Do that by default.
+ */
+static void mtd_part_parser_cleanup_default(const struct mtd_partition *pparts,
+					    int nr_parts)
+{
+	kfree(pparts);
+}
 
-void register_mtd_parser(struct mtd_part_parser *p)
+int __register_mtd_parser(struct mtd_part_parser *p, struct module *owner)
 {
+	p->owner = owner;
+
+	if (!p->cleanup)
+		p->cleanup = &mtd_part_parser_cleanup_default;
+
 	spin_lock(&part_parser_lock);
 	list_add(&p->list, &part_parsers);
 	spin_unlock(&part_parser_lock);
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(register_mtd_parser);
+EXPORT_SYMBOL_GPL(__register_mtd_parser);
 
 void deregister_mtd_parser(struct mtd_part_parser *p)
 {
@@ -734,7 +756,7 @@ static const char * const default_mtd_part_types[] = {
  * parse_mtd_partitions - parse MTD partitions
  * @master: the master partition (describes whole MTD device)
  * @types: names of partition parsers to try or %NULL
- * @pparts: array of partitions found is returned here
+ * @pparts: info about partitions found is returned here
  * @data: MTD partition parser-specific data
  *
  * This function tries to find partition on MTD device @master. It uses MTD
@@ -746,12 +768,13 @@ static const char * const default_mtd_part_types[] = {
  *
  * This function may return:
  * o a negative error code in case of failure
- * o zero if no partitions were found
- * o a positive number of found partitions, in which case on exit @pparts will
- *   point to an array containing this number of &struct mtd_info objects.
+ * o zero otherwise, and @pparts will describe the partitions, number of
+ *   partitions, and the parser which parsed them. Caller must release
+ *   resources with mtd_part_parser_cleanup() when finished with the returned
+ *   data.
  */
 int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
-			 struct mtd_partition **pparts,
+			 struct mtd_partitions *pparts,
 			 struct mtd_part_parser_data *data)
 {
 	struct mtd_part_parser *parser;
@@ -762,22 +785,24 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
 
 	for ( ; *types; types++) {
 		pr_debug("%s: parsing partitions %s\n", master->name, *types);
-		parser = get_partition_parser(*types);
+		parser = mtd_part_parser_get(*types);
 		if (!parser && !request_module("%s", *types))
-			parser = get_partition_parser(*types);
+			parser = mtd_part_parser_get(*types);
 		pr_debug("%s: got parser %s\n", master->name,
 			 parser ? parser->name : NULL);
 		if (!parser)
 			continue;
-		ret = (*parser->parse_fn)(master, pparts, data);
+		ret = (*parser->parse_fn)(master, &pparts->parts, data);
 		pr_debug("%s: parser %s: %i\n",
 			 master->name, parser->name, ret);
-		put_partition_parser(parser);
 		if (ret > 0) {
 			printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
 			       ret, parser->name, master->name);
-			return ret;
+			pparts->nr_parts = ret;
+			pparts->parser = parser;
+			return 0;
 		}
+		mtd_part_parser_put(parser);
 		/*
 		 * Stash the first error we see; only report it if no parser
 		 * succeeds
@@ -788,6 +813,22 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
 	return err;
 }
 
+void mtd_part_parser_cleanup(struct mtd_partitions *parts)
+{
+	const struct mtd_part_parser *parser;
+
+	if (!parts)
+		return;
+
+	parser = parts->parser;
+	if (parser) {
+		if (parser->cleanup)
+			parser->cleanup(parts->parts, parts->nr_parts);
+
+		mtd_part_parser_put(parser);
+	}
+}
+
 int mtd_is_partition(const struct mtd_info *mtd)
 {
 	struct mtd_part *part;
@@ -811,6 +852,6 @@ uint64_t mtd_get_device_size(const struct mtd_info *mtd)
 	if (!mtd_is_partition(mtd))
 		return mtd->size;
 
-	return PART(mtd)->master->size;
+	return mtd_to_part(mtd)->master->size;
 }
 EXPORT_SYMBOL_GPL(mtd_get_device_size);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 289664089cf3..20f01b3ec23d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -55,7 +55,7 @@ config MTD_NAND_DENALI_PCI
 config MTD_NAND_DENALI_DT
 	tristate "Support Denali NAND controller as a DT device"
 	select MTD_NAND_DENALI
-	depends on HAS_DMA && HAVE_CLK
+	depends on HAS_DMA && HAVE_CLK && OF
 	help
 	  Enable the driver for NAND flash on platforms using a Denali NAND
 	  controller as a DT device.
@@ -480,7 +480,7 @@ config MTD_NAND_MXC
 
 config MTD_NAND_SH_FLCTL
 	tristate "Support for NAND on Renesas SuperH FLCTL"
-	depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
+	depends on SUPERH || COMPILE_TEST
 	depends on HAS_IOMEM
 	depends on HAS_DMA
 	help
@@ -519,6 +519,13 @@ config MTD_NAND_JZ4740
 	help
 		Enables support for NAND Flash on JZ4740 SoC based boards.
 
+config MTD_NAND_JZ4780
+	tristate "Support for NAND on JZ4780 SoC"
+	depends on MACH_JZ4780 && JZ4780_NEMC
+	help
+	  Enables support for NAND Flash connected to the NEMC on JZ4780 SoC
+	  based boards, using the BCH controller for hardware error correction.
+
 config MTD_NAND_FSMC
 	tristate "Support for NAND on ST Micros FSMC"
 	depends on PLAT_SPEAR || ARCH_NOMADIK || ARCH_U8500 || MACH_U300
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 2c7f014b349e..9e3623308509 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_MTD_NAND_MPC5121_NFC)	+= mpc5121_nfc.o
 obj-$(CONFIG_MTD_NAND_VF610_NFC)	+= vf610_nfc.o
 obj-$(CONFIG_MTD_NAND_RICOH)		+= r852.o
 obj-$(CONFIG_MTD_NAND_JZ4740)		+= jz4740_nand.o
+obj-$(CONFIG_MTD_NAND_JZ4780)		+= jz4780_nand.o jz4780_bch.o
 obj-$(CONFIG_MTD_NAND_GPMI_NAND)	+= gpmi-nand/
 obj-$(CONFIG_MTD_NAND_XWAY)		+= xway_nand.o
 obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH)	+= bcm47xxnflash/
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 842f8fe91b56..68b58c85789c 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -64,8 +64,8 @@ static struct mtd_partition partition_info[] = {
 
 static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd->priv;
-	void __iomem *io_base = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
 
 	writew(0, io_base + OMAP_MPUIO_IO_CNTL);
 	writew(byte, this->IO_ADDR_W);
@@ -77,8 +77,8 @@ static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
 static u_char ams_delta_read_byte(struct mtd_info *mtd)
 {
 	u_char res;
-	struct nand_chip *this = mtd->priv;
-	void __iomem *io_base = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	void __iomem *io_base = (void __iomem *)nand_get_controller_data(this);
 
 	gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0);
 	ndelay(40);
@@ -183,22 +183,16 @@ static int ams_delta_init(struct platform_device *pdev)
 		return -ENXIO;
 
 	/* Allocate memory for MTD device structure and private data */
-	ams_delta_mtd = kzalloc(sizeof(struct mtd_info) +
-				sizeof(struct nand_chip), GFP_KERNEL);
-	if (!ams_delta_mtd) {
+	this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+	if (!this) {
 		printk (KERN_WARNING "Unable to allocate E3 NAND MTD device structure.\n");
 		err = -ENOMEM;
 		goto out;
 	}
 
+	ams_delta_mtd = nand_to_mtd(this);
 	ams_delta_mtd->owner = THIS_MODULE;
 
-	/* Get pointer to private data */
-	this = (struct nand_chip *) (&ams_delta_mtd[1]);
-
-	/* Link the private data with the MTD structure */
-	ams_delta_mtd->priv = this;
-
 	/*
 	 * Don't try to request the memory region from here,
 	 * it should have been already requested from the
@@ -212,7 +206,7 @@ static int ams_delta_init(struct platform_device *pdev)
 		goto out_free;
 	}
 
-	this->priv = io_base;
+	nand_set_controller_data(this, (void *)io_base);
 
 	/* Set address of NAND IO lines */
 	this->IO_ADDR_R = io_base + OMAP_MPUIO_INPUT_LATCH;
@@ -256,7 +250,7 @@ out_gpio:
 	gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
 	iounmap(io_base);
 out_free:
-	kfree(ams_delta_mtd);
+	kfree(this);
  out:
 	return err;
 }
@@ -276,7 +270,7 @@ static int ams_delta_cleanup(struct platform_device *pdev)
 	iounmap(io_base);
 
 	/* Free the MTD device structure */
-	kfree(ams_delta_mtd);
+	kfree(mtd_to_nand(ams_delta_mtd));
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 583cdd9bb971..bddcf83d6859 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -116,7 +116,6 @@ static struct atmel_nfc	nand_nfc;
 
 struct atmel_nand_host {
 	struct nand_chip	nand_chip;
-	struct mtd_info		mtd;
 	void __iomem		*io_base;
 	dma_addr_t		io_phys;
 	struct atmel_nand_data	board;
@@ -128,7 +127,7 @@ struct atmel_nand_host {
 
 	struct atmel_nfc	*nfc;
 
-	struct atmel_nand_caps	*caps;
+	const struct atmel_nand_caps	*caps;
 	bool			has_pmecc;
 	u8			pmecc_corr_cap;
 	u16			pmecc_sector_size;
@@ -182,8 +181,8 @@ static void atmel_nand_disable(struct atmel_nand_host *host)
  */
 static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		if (ctrl & NAND_NCE)
@@ -205,8 +204,8 @@ static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl
  */
 static int atmel_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	return gpio_get_value(host->board.rdy_pin) ^
                 !!host->board.rdy_pin_active_low;
@@ -215,8 +214,8 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
 /* Set up for hardware ready pin and enable pin. */
 static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	int res = 0;
 
 	if (gpio_is_valid(host->board.rdy_pin)) {
@@ -267,8 +266,8 @@ static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd)
  */
 static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip	*nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip	*nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) {
 		memcpy(buf, host->nfc->data_in_sram, len);
@@ -280,8 +279,8 @@ static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
 
 static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip	*nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip	*nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) {
 		memcpy(buf, host->nfc->data_in_sram, len);
@@ -293,14 +292,14 @@ static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
 
 static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip	*nand_chip = mtd->priv;
+	struct nand_chip	*nand_chip = mtd_to_nand(mtd);
 
 	__raw_writesb(nand_chip->IO_ADDR_W, buf, len);
 }
 
 static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip	*nand_chip = mtd->priv;
+	struct nand_chip	*nand_chip = mtd_to_nand(mtd);
 
 	__raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2);
 }
@@ -317,8 +316,10 @@ static int nfc_set_sram_bank(struct atmel_nand_host *host, unsigned int bank)
 		return -EINVAL;
 
 	if (bank) {
+		struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
+
 		/* Only for a 2k-page or lower flash, NFC can handle 2 banks */
-		if (host->mtd.writesize > 2048)
+		if (mtd->writesize > 2048)
 			return -EINVAL;
 		nfc_writel(host->nfc->hsmc_regs, BANK, ATMEL_HSMC_NFC_BANK1);
 	} else {
@@ -352,8 +353,8 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
 	dma_addr_t dma_src_addr, dma_dst_addr, phys_addr;
 	struct dma_async_tx_descriptor *tx = NULL;
 	dma_cookie_t cookie;
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	void *p = buf;
 	int err = -EIO;
 	enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
@@ -425,8 +426,8 @@ err_buf:
 
 static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 
 	if (use_dma && len > mtd->oobsize)
 		/* only use DMA for bigger than oob size: better performances */
@@ -441,8 +442,8 @@ static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 
 static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 
 	if (use_dma && len > mtd->oobsize)
 		/* only use DMA for bigger than oob size: better performances */
@@ -533,8 +534,8 @@ static int pmecc_data_alloc(struct atmel_nand_host *host)
 
 static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	int i;
 	uint32_t value;
 
@@ -550,8 +551,8 @@ static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector)
 
 static void pmecc_substitute(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	int16_t __iomem *alpha_to = host->pmecc_alpha_to;
 	int16_t __iomem *index_of = host->pmecc_index_of;
 	int16_t *partial_syn = host->pmecc_partial_syn;
@@ -592,8 +593,8 @@ static void pmecc_substitute(struct mtd_info *mtd)
 
 static void pmecc_get_sigma(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	int16_t *lmu = host->pmecc_lmu;
 	int16_t *si = host->pmecc_si;
@@ -750,8 +751,8 @@ static void pmecc_get_sigma(struct mtd_info *mtd)
 
 static int pmecc_err_location(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	unsigned long end_time;
 	const int cap = host->pmecc_corr_cap;
 	const int num = 2 * cap + 1;
@@ -802,8 +803,8 @@ static int pmecc_err_location(struct mtd_info *mtd)
 static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc,
 		int sector_num, int extra_bytes, int err_nbr)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	int i = 0;
 	int byte_pos, bit_pos, sector_size, pos;
 	uint32_t tmp;
@@ -848,8 +849,8 @@ static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc,
 static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf,
 	u8 *ecc)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	int i, err_nbr;
 	uint8_t *buf_pos;
 	int max_bitflips = 0;
@@ -919,7 +920,7 @@ static void pmecc_enable(struct atmel_nand_host *host, int ecc_op)
 static int atmel_nand_pmecc_read_page(struct mtd_info *mtd,
 	struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
 {
-	struct atmel_nand_host *host = chip->priv;
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	int eccsize = chip->ecc.size * chip->ecc.steps;
 	uint8_t *oob = chip->oob_poi;
 	uint32_t *eccpos = chip->ecc.layout->eccpos;
@@ -957,7 +958,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
 		struct nand_chip *chip, const uint8_t *buf, int oob_required,
 		int page)
 {
-	struct atmel_nand_host *host = chip->priv;
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	uint32_t *eccpos = chip->ecc.layout->eccpos;
 	int i, j;
 	unsigned long end_time;
@@ -992,8 +993,8 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
 
 static void atmel_pmecc_core_init(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	uint32_t val = 0;
 	struct nand_ecclayout *ecc_layout;
 
@@ -1159,8 +1160,8 @@ static uint16_t *create_lookup_table(struct device *dev, int sector_size)
 static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
 					 struct atmel_nand_host *host)
 {
-	struct mtd_info *mtd = &host->mtd;
 	struct nand_chip *nand_chip = &host->nand_chip;
+	struct mtd_info *mtd = nand_to_mtd(nand_chip);
 	struct resource *regs, *regs_pmerr, *regs_rom;
 	uint16_t *galois_table;
 	int cap, sector_size, err_no;
@@ -1308,8 +1309,8 @@ err:
 static int atmel_nand_calculate(struct mtd_info *mtd,
 		const u_char *dat, unsigned char *ecc_code)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	unsigned int ecc_value;
 
 	/* get the first 2 ECC bytes */
@@ -1355,7 +1356,7 @@ static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 	 * Workaround: Reset the parity registers before reading the
 	 * actual data.
 	 */
-	struct atmel_nand_host *host = chip->priv;
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	if (host->board.need_reset_workaround)
 		ecc_writel(host->ecc, CR, ATMEL_ECC_RST);
 
@@ -1412,8 +1413,8 @@ static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat,
 		u_char *read_ecc, u_char *isnull)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 	unsigned int ecc_status;
 	unsigned int ecc_word, ecc_bit;
 
@@ -1444,7 +1445,7 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat,
 		 * We can't correct so many errors */
 		dev_dbg(host->dev, "atmel_nand : multiple errors detected."
 				" Unable to correct.\n");
-		return -EIO;
+		return -EBADMSG;
 	}
 
 	/* if there's a single bit error : we can correct it */
@@ -1478,8 +1479,8 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat,
  */
 static void atmel_nand_hwctl(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (host->board.need_reset_workaround)
 		ecc_writel(host->ecc, CR, ATMEL_ECC_RST);
@@ -1586,8 +1587,8 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
 static int atmel_hw_nand_init_params(struct platform_device *pdev,
 					 struct atmel_nand_host *host)
 {
-	struct mtd_info *mtd = &host->mtd;
 	struct nand_chip *nand_chip = &host->nand_chip;
+	struct mtd_info *mtd = nand_to_mtd(nand_chip);
 	struct resource		*regs;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -1771,8 +1772,8 @@ static int nfc_send_command(struct atmel_nand_host *host,
 static int nfc_device_ready(struct mtd_info *mtd)
 {
 	u32 status, mask;
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	status = nfc_read_status(host);
 	mask = nfc_readl(host->nfc->hsmc_regs, IMR);
@@ -1787,8 +1788,8 @@ static int nfc_device_ready(struct mtd_info *mtd)
 
 static void nfc_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct atmel_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (chip == -1)
 		nfc_writel(host->nfc->hsmc_regs, CTRL, NFC_CTRL_DISABLE);
@@ -1799,7 +1800,7 @@ static void nfc_select_chip(struct mtd_info *mtd, int chip)
 static int nfc_make_addr(struct mtd_info *mtd, int command, int column,
 		int page_addr, unsigned int *addr1234, unsigned int *cycle0)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	int acycle = 0;
 	unsigned char addr_bytes[8];
@@ -1839,8 +1840,8 @@ static int nfc_make_addr(struct mtd_info *mtd, int command, int column,
 static void nfc_nand_command(struct mtd_info *mtd, unsigned int command,
 				int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	unsigned long timeout;
 	unsigned int nfc_addr_cmd = 0;
 
@@ -1966,7 +1967,7 @@ static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 {
 	int cfg, len;
 	int status = 0;
-	struct atmel_nand_host *host = chip->priv;
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	void *sram = host->nfc->sram_bank0 + nfc_get_sram_off(host);
 
 	/* Subpage write is not supported */
@@ -2026,8 +2027,8 @@ static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int nfc_sram_init(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct atmel_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand_host *host = nand_get_controller_data(chip);
 	int res = 0;
 
 	/* Initialize the NFC CFG register */
@@ -2093,7 +2094,6 @@ static int atmel_nand_probe(struct platform_device *pdev)
 	struct mtd_info *mtd;
 	struct nand_chip *nand_chip;
 	struct resource *mem;
-	struct mtd_part_parser_data ppdata = {};
 	int res, irq;
 
 	/* Allocate memory for the device structure (and zero it) */
@@ -2113,10 +2113,11 @@ static int atmel_nand_probe(struct platform_device *pdev)
 	}
 	host->io_phys = (dma_addr_t)mem->start;
 
-	mtd = &host->mtd;
 	nand_chip = &host->nand_chip;
+	mtd = nand_to_mtd(nand_chip);
 	host->dev = &pdev->dev;
 	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		nand_set_flash_node(nand_chip, pdev->dev.of_node);
 		/* Only when CONFIG_OF is enabled of_node can be parsed */
 		res = atmel_of_init_port(host, pdev->dev.of_node);
 		if (res)
@@ -2126,8 +2127,8 @@ static int atmel_nand_probe(struct platform_device *pdev)
 		       sizeof(struct atmel_nand_data));
 	}
 
-	nand_chip->priv = host;		/* link the private data structures */
-	mtd->priv = nand_chip;
+	 /* link the private data structures */
+	nand_set_controller_data(nand_chip, host);
 	mtd->dev.parent = &pdev->dev;
 
 	/* Set address of NAND IO lines */
@@ -2259,9 +2260,8 @@ static int atmel_nand_probe(struct platform_device *pdev)
 	}
 
 	mtd->name = "atmel_nand";
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata,
-			host->board.parts, host->board.num_parts);
+	res = mtd_device_register(mtd, host->board.parts,
+				  host->board.num_parts);
 	if (!res)
 		return res;
 
@@ -2284,7 +2284,7 @@ err_nand_ioremap:
 static int atmel_nand_remove(struct platform_device *pdev)
 {
 	struct atmel_nand_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 
@@ -2304,11 +2304,11 @@ static int atmel_nand_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct atmel_nand_caps at91rm9200_caps = {
+static const struct atmel_nand_caps at91rm9200_caps = {
 	.pmecc_correct_erase_page = false,
 };
 
-static struct atmel_nand_caps sama5d4_caps = {
+static const struct atmel_nand_caps sama5d4_caps = {
 	.pmecc_correct_erase_page = true,
 };
 
diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index 08a130f63faf..341ea4904164 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -23,7 +23,6 @@
 
 
 struct au1550nd_ctx {
-	struct mtd_info info;
 	struct nand_chip chip;
 
 	int cs;
@@ -39,7 +38,7 @@ struct au1550nd_ctx {
  */
 static u_char au_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char ret = readb(this->IO_ADDR_R);
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -54,7 +53,7 @@ static u_char au_read_byte(struct mtd_info *mtd)
  */
 static void au_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	writeb(byte, this->IO_ADDR_W);
 	wmb(); /* drain writebuffer */
 }
@@ -67,7 +66,7 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte)
  */
 static u_char au_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char ret = (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -82,7 +81,7 @@ static u_char au_read_byte16(struct mtd_info *mtd)
  */
 static void au_write_byte16(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
 	wmb(); /* drain writebuffer */
 }
@@ -95,7 +94,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte)
  */
 static u16 au_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u16 ret = readw(this->IO_ADDR_R);
 	wmb(); /* drain writebuffer */
 	return ret;
@@ -112,7 +111,7 @@ static u16 au_read_word(struct mtd_info *mtd)
 static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i = 0; i < len; i++) {
 		writeb(buf[i], this->IO_ADDR_W);
@@ -131,7 +130,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i = 0; i < len; i++) {
 		buf[i] = readb(this->IO_ADDR_R);
@@ -150,7 +149,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
@@ -172,7 +171,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u16 *p = (u16 *) buf;
 	len >>= 1;
 
@@ -197,8 +196,9 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 
 static void au1550_hwcontrol(struct mtd_info *mtd, int cmd)
 {
-	struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info);
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
+						chip);
 
 	switch (cmd) {
 
@@ -267,8 +267,9 @@ static void au1550_select_chip(struct mtd_info *mtd, int chip)
  */
 static void au1550_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
 {
-	struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info);
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx,
+						chip);
 	int ce_override = 0, i;
 	unsigned long flags = 0;
 
@@ -405,6 +406,7 @@ static int au1550nd_probe(struct platform_device *pdev)
 	struct au1550nd_platdata *pd;
 	struct au1550nd_ctx *ctx;
 	struct nand_chip *this;
+	struct mtd_info *mtd;
 	struct resource *r;
 	int ret, cs;
 
@@ -438,8 +440,8 @@ static int au1550nd_probe(struct platform_device *pdev)
 	}
 
 	this = &ctx->chip;
-	ctx->info.priv = this;
-	ctx->info.dev.parent = &pdev->dev;
+	mtd = nand_to_mtd(this);
+	mtd->dev.parent = &pdev->dev;
 
 	/* figure out which CS# r->start belongs to */
 	cs = find_nand_cs(r->start);
@@ -467,13 +469,13 @@ static int au1550nd_probe(struct platform_device *pdev)
 	this->write_buf = (pd->devwidth) ? au_write_buf16 : au_write_buf;
 	this->read_buf = (pd->devwidth) ? au_read_buf16 : au_read_buf;
 
-	ret = nand_scan(&ctx->info, 1);
+	ret = nand_scan(mtd, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "NAND scan failed with %d\n", ret);
 		goto out3;
 	}
 
-	mtd_device_register(&ctx->info, pd->parts, pd->num_parts);
+	mtd_device_register(mtd, pd->parts, pd->num_parts);
 
 	platform_set_drvdata(pdev, ctx);
 
@@ -493,7 +495,7 @@ static int au1550nd_remove(struct platform_device *pdev)
 	struct au1550nd_ctx *ctx = platform_get_drvdata(pdev);
 	struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	nand_release(&ctx->info);
+	nand_release(nand_to_mtd(&ctx->chip));
 	iounmap(ctx->base);
 	release_mem_region(r->start, 0x1000);
 	kfree(ctx);
diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
index c005a62330b1..8ea75710a854 100644
--- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
+++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
@@ -12,7 +12,6 @@ struct bcm47xxnflash {
 	struct bcma_drv_cc *cc;
 
 	struct nand_chip nand_chip;
-	struct mtd_info mtd;
 
 	unsigned curr_command;
 	int curr_page_addr;
diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c
index 9ba0c0f2cd9b..fb31429b70a9 100644
--- a/drivers/mtd/nand/bcm47xxnflash/main.c
+++ b/drivers/mtd/nand/bcm47xxnflash/main.c
@@ -27,15 +27,16 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
 {
 	struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
 	struct bcm47xxnflash *b47n;
+	struct mtd_info *mtd;
 	int err = 0;
 
 	b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL);
 	if (!b47n)
 		return -ENOMEM;
 
-	b47n->nand_chip.priv = b47n;
-	b47n->mtd.dev.parent = &pdev->dev;
-	b47n->mtd.priv = &b47n->nand_chip; /* Required */
+	nand_set_controller_data(&b47n->nand_chip, b47n);
+	mtd = nand_to_mtd(&b47n->nand_chip);
+	mtd->dev.parent = &pdev->dev;
 	b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
 
 	if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
@@ -49,7 +50,9 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0);
+	platform_set_drvdata(pdev, b47n);
+
+	err = mtd_device_parse_register(mtd, probes, NULL, NULL, 0);
 	if (err) {
 		pr_err("Failed to register MTD device: %d\n", err);
 		return err;
@@ -60,10 +63,9 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
 
 static int bcm47xxnflash_remove(struct platform_device *pdev)
 {
-	struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
+	struct bcm47xxnflash *nflash = platform_get_drvdata(pdev);
 
-	if (nflash->mtd)
-		mtd_device_unregister(nflash->mtd);
+	nand_release(nand_to_mtd(&nflash->nand_chip));
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
index 592befc7ffa1..f1da4ea88f2c 100644
--- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
@@ -89,8 +89,8 @@ static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc)
 static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
 					   int len)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	u32 ctlcode;
 	u32 *dest = (u32 *)buf;
@@ -139,8 +139,8 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf,
 static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
 					    const uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 
 	u32 ctlcode;
@@ -173,8 +173,8 @@ static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
 static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd,
 					       unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	u32 code = 0;
 
 	if (cmd == NAND_CMD_NONE)
@@ -199,8 +199,8 @@ static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd,
 
 static int bcm47xxnflash_ops_bcm4706_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	return !!(bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_CTL) & NCTL_READY);
 }
@@ -216,8 +216,8 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
 					      unsigned command, int column,
 					      int page_addr)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 	u32 ctlcode;
 	int i;
@@ -312,8 +312,8 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
 
 static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 	struct bcma_drv_cc *cc = b47n->cc;
 	u32 tmp = 0;
 
@@ -341,8 +341,8 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
 static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
 					       uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	switch (b47n->curr_command) {
 	case NAND_CMD_READ0:
@@ -357,8 +357,8 @@ static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd,
 static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd,
 						const uint8_t *buf, int len)
 {
-	struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
-	struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip);
 
 	switch (b47n->curr_command) {
 	case NAND_CMD_SEQIN:
@@ -421,7 +421,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
 			(w4 << 24 | w3 << 18 | w2 << 12 | w1 << 6 | w0));
 
 	/* Scan NAND */
-	err = nand_scan(&b47n->mtd, 1);
+	err = nand_scan(nand_to_mtd(&b47n->nand_chip), 1);
 	if (err) {
 		pr_err("Could not scan NAND flash: %d\n", err);
 		goto exit;
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index 61bd2160717c..7f6b30e615b7 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -142,7 +142,6 @@ static struct nand_ecclayout bootrom_ecclayout = {
 struct bf5xx_nand_info {
 	/* mtd info */
 	struct nand_hw_control		controller;
-	struct mtd_info			mtd;
 	struct nand_chip		chip;
 
 	/* platform info */
@@ -160,7 +159,8 @@ struct bf5xx_nand_info {
  */
 static struct bf5xx_nand_info *mtd_to_nand_info(struct mtd_info *mtd)
 {
-	return container_of(mtd, struct bf5xx_nand_info, mtd);
+	return container_of(mtd_to_nand(mtd), struct bf5xx_nand_info,
+			    chip);
 }
 
 static struct bf5xx_nand_info *to_nand_info(struct platform_device *pdev)
@@ -252,7 +252,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
 	 */
 	if (hweight32(syndrome[0]) == 1) {
 		dev_err(info->device, "ECC data was incorrect!\n");
-		return 1;
+		return -EBADMSG;
 	}
 
 	syndrome[1] = (calced & 0x7FF) ^ (stored & 0x7FF);
@@ -285,7 +285,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
 		data = data ^ (0x1 << failing_bit);
 		*(dat + failing_byte) = data;
 
-		return 0;
+		return 1;
 	}
 
 	/*
@@ -298,26 +298,34 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat,
 	dev_err(info->device,
 		"Please discard data, mark bad block\n");
 
-	return 1;
+	return -EBADMSG;
 }
 
 static int bf5xx_nand_correct_data(struct mtd_info *mtd, u_char *dat,
 					u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *chip = mtd->priv;
-	int ret;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	int ret, bitflips = 0;
 
 	ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc);
+	if (ret < 0)
+		return ret;
+
+	bitflips = ret;
 
 	/* If ecc size is 512, correct second 256 bytes */
 	if (chip->ecc.size == 512) {
 		dat += 256;
 		read_ecc += 3;
 		calc_ecc += 3;
-		ret |= bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc);
+		ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc);
+		if (ret < 0)
+			return ret;
+
+		bitflips += ret;
 	}
 
-	return ret;
+	return bitflips;
 }
 
 static void bf5xx_nand_enable_hwecc(struct mtd_info *mtd, int mode)
@@ -329,7 +337,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd,
 		const u_char *dat, u_char *ecc_code)
 {
 	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u16 ecc0, ecc1;
 	u32 code[2];
 	u8 *p;
@@ -466,7 +474,7 @@ static void bf5xx_nand_dma_rw(struct mtd_info *mtd,
 				uint8_t *buf, int is_read)
 {
 	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	unsigned short val;
 
 	dev_dbg(info->device, " mtd->%p, buf->%p, is_read %d\n",
@@ -532,7 +540,7 @@ static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd,
 					uint8_t *buf, int len)
 {
 	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	dev_dbg(info->device, "mtd->%p, buf->%p, int %d\n", mtd, buf, len);
 
@@ -546,7 +554,7 @@ static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd,
 				const uint8_t *buf, int len)
 {
 	struct bf5xx_nand_info *info = mtd_to_nand_info(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	dev_dbg(info->device, "mtd->%p, buf->%p, len %d\n", mtd, buf, len);
 
@@ -660,7 +668,7 @@ static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info)
  */
 static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info)
 {
-	struct mtd_info *mtd = &info->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&info->chip);
 	struct mtd_partition *parts = info->platform->partitions;
 	int nr = info->platform->nr_partitions;
 
@@ -675,7 +683,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
 	 * and their partitions, then go through freeing the
 	 * resources used
 	 */
-	nand_release(&info->mtd);
+	nand_release(nand_to_mtd(&info->chip));
 
 	peripheral_free_list(bfin_nfc_pin_req);
 	bf5xx_nand_dma_remove(info);
@@ -685,7 +693,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
 
 static int bf5xx_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret;
 
 	ret = nand_scan_ident(mtd, 1, NULL);
@@ -756,6 +764,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
 
 	/* initialise chip data struct */
 	chip = &info->chip;
+	mtd = nand_to_mtd(&info->chip);
 
 	if (plat->data_width)
 		chip->options |= NAND_BUSWIDTH_16;
@@ -772,7 +781,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
 	chip->cmd_ctrl     = bf5xx_nand_hwcontrol;
 	chip->dev_ready    = bf5xx_nand_devready;
 
-	chip->priv	   = &info->mtd;
+	nand_set_controller_data(chip, mtd);
 	chip->controller   = &info->controller;
 
 	chip->IO_ADDR_R    = (void __iomem *) NFC_READ;
@@ -781,8 +790,6 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
 	chip->chip_delay   = 0;
 
 	/* initialise mtd info data struct */
-	mtd 		= &info->mtd;
-	mtd->priv	= chip;
 	mtd->dev.parent = &pdev->dev;
 
 	/* initialise the hardware */
diff --git a/drivers/mtd/nand/brcmnand/Makefile b/drivers/mtd/nand/brcmnand/Makefile
index 3b1fbfd27d4f..b28ffb59eb43 100644
--- a/drivers/mtd/nand/brcmnand/Makefile
+++ b/drivers/mtd/nand/brcmnand/Makefile
@@ -2,5 +2,6 @@
 # more specific iproc_nand.o, for instance
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= iproc_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= bcm63138_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= bcm6368_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= brcmstb_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= brcmnand.o
diff --git a/drivers/mtd/nand/brcmnand/bcm6368_nand.c b/drivers/mtd/nand/brcmnand/bcm6368_nand.c
new file mode 100644
index 000000000000..34c91b0e1e69
--- /dev/null
+++ b/drivers/mtd/nand/brcmnand/bcm6368_nand.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2015 Simon Arlott
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Derived from bcm63138_nand.c:
+ * Copyright © 2015 Broadcom Corporation
+ *
+ * Derived from bcm963xx_4.12L.06B_consumer/shared/opensource/include/bcm963xx/63268_map_part.h:
+ * Copyright 2000-2010 Broadcom Corporation
+ *
+ * Derived from bcm963xx_4.12L.06B_consumer/shared/opensource/flash/nandflash.c:
+ * Copyright 2000-2010 Broadcom Corporation
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "brcmnand.h"
+
+struct bcm6368_nand_soc {
+	struct brcmnand_soc soc;
+	void __iomem *base;
+};
+
+#define BCM6368_NAND_INT		0x00
+#define  BCM6368_NAND_STATUS_SHIFT	0
+#define  BCM6368_NAND_STATUS_MASK	(0xfff << BCM6368_NAND_STATUS_SHIFT)
+#define  BCM6368_NAND_ENABLE_SHIFT	16
+#define  BCM6368_NAND_ENABLE_MASK	(0xffff << BCM6368_NAND_ENABLE_SHIFT)
+#define BCM6368_NAND_BASE_ADDR0	0x04
+#define BCM6368_NAND_BASE_ADDR1	0x0c
+
+enum {
+	BCM6368_NP_READ		= BIT(0),
+	BCM6368_BLOCK_ERASE	= BIT(1),
+	BCM6368_COPY_BACK	= BIT(2),
+	BCM6368_PAGE_PGM	= BIT(3),
+	BCM6368_CTRL_READY	= BIT(4),
+	BCM6368_DEV_RBPIN	= BIT(5),
+	BCM6368_ECC_ERR_UNC	= BIT(6),
+	BCM6368_ECC_ERR_CORR	= BIT(7),
+};
+
+static bool bcm6368_nand_intc_ack(struct brcmnand_soc *soc)
+{
+	struct bcm6368_nand_soc *priv =
+			container_of(soc, struct bcm6368_nand_soc, soc);
+	void __iomem *mmio = priv->base + BCM6368_NAND_INT;
+	u32 val = brcmnand_readl(mmio);
+
+	if (val & (BCM6368_CTRL_READY << BCM6368_NAND_STATUS_SHIFT)) {
+		/* Ack interrupt */
+		val &= ~BCM6368_NAND_STATUS_MASK;
+		val |= BCM6368_CTRL_READY << BCM6368_NAND_STATUS_SHIFT;
+		brcmnand_writel(val, mmio);
+		return true;
+	}
+
+	return false;
+}
+
+static void bcm6368_nand_intc_set(struct brcmnand_soc *soc, bool en)
+{
+	struct bcm6368_nand_soc *priv =
+			container_of(soc, struct bcm6368_nand_soc, soc);
+	void __iomem *mmio = priv->base + BCM6368_NAND_INT;
+	u32 val = brcmnand_readl(mmio);
+
+	/* Don't ack any interrupts */
+	val &= ~BCM6368_NAND_STATUS_MASK;
+
+	if (en)
+		val |= BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT;
+	else
+		val &= ~(BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT);
+
+	brcmnand_writel(val, mmio);
+}
+
+static int bcm6368_nand_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm6368_nand_soc *priv;
+	struct brcmnand_soc *soc;
+	struct resource *res;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	soc = &priv->soc;
+
+	res = platform_get_resource_byname(pdev,
+		IORESOURCE_MEM, "nand-int-base");
+	priv->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	soc->ctlrdy_ack = bcm6368_nand_intc_ack;
+	soc->ctlrdy_set_enabled = bcm6368_nand_intc_set;
+
+	/* Disable and ack all interrupts  */
+	brcmnand_writel(0, priv->base + BCM6368_NAND_INT);
+	brcmnand_writel(BCM6368_NAND_STATUS_MASK,
+			priv->base + BCM6368_NAND_INT);
+
+	return brcmnand_probe(pdev, soc);
+}
+
+static const struct of_device_id bcm6368_nand_of_match[] = {
+	{ .compatible = "brcm,nand-bcm6368" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, bcm6368_nand_of_match);
+
+static struct platform_driver bcm6368_nand_driver = {
+	.probe			= bcm6368_nand_probe,
+	.remove			= brcmnand_remove,
+	.driver = {
+		.name		= "bcm6368_nand",
+		.pm		= &brcmnand_pm_ops,
+		.of_match_table	= bcm6368_nand_of_match,
+	}
+};
+module_platform_driver(bcm6368_nand_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Simon Arlott");
+MODULE_DESCRIPTION("NAND driver for BCM6368");
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 12c6190c6e33..844fc07d22cd 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -11,6 +11,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/clk.h>
 #include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -122,6 +123,9 @@ struct brcmnand_controller {
 	/* Some SoCs provide custom interrupt status register(s) */
 	struct brcmnand_soc	*soc;
 
+	/* Some SoCs have a gateable clock for the controller */
+	struct clk		*clk;
+
 	int			cmd_pending;
 	bool			dma_pending;
 	struct completion	done;
@@ -134,7 +138,7 @@ struct brcmnand_controller {
 	dma_addr_t		dma_pa;
 
 	/* in-memory cache of the FLASH_CACHE, used only for some commands */
-	u32			flash_cache[FC_WORDS];
+	u8			flash_cache[FC_BYTES];
 
 	/* Controller revision details */
 	const u16		*reg_offsets;
@@ -176,10 +180,8 @@ struct brcmnand_cfg {
 
 struct brcmnand_host {
 	struct list_head	node;
-	struct device_node	*of_node;
 
 	struct nand_chip	chip;
-	struct mtd_info		mtd;
 	struct platform_device	*pdev;
 	int			cs;
 
@@ -874,8 +876,8 @@ static struct nand_ecclayout *brcmstb_choose_ecc_layout(
 
 static void brcmnand_wp(struct mtd_info *mtd, int wp)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct brcmnand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 
 	if ((ctrl->features & BRCMNAND_HAS_WP) && wp_on == 1) {
@@ -1040,8 +1042,8 @@ static void brcmnand_cmd_ctrl(struct mtd_info *mtd, int dat,
 
 static int brcmnand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct brcmnand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	unsigned long timeo = msecs_to_jiffies(100);
 
@@ -1075,7 +1077,7 @@ static int brcmnand_low_level_op(struct brcmnand_host *host,
 				 enum brcmnand_llop_type type, u32 data,
 				 bool last_op)
 {
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->chip);
 	struct nand_chip *chip = &host->chip;
 	struct brcmnand_controller *ctrl = host->ctrl;
 	u32 tmp;
@@ -1114,8 +1116,8 @@ static int brcmnand_low_level_op(struct brcmnand_host *host,
 static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			     int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct brcmnand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	u64 addr = (u64)page_addr << chip->page_shift;
 	int native_cmd = 0;
@@ -1188,6 +1190,8 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 	if (native_cmd == CMD_PARAMETER_READ ||
 			native_cmd == CMD_PARAMETER_CHANGE_COL) {
+		/* Copy flash cache word-wise */
+		u32 *flash_cache = (u32 *)ctrl->flash_cache;
 		int i;
 
 		brcmnand_soc_data_bus_prepare(ctrl->soc);
@@ -1197,7 +1201,11 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 		 * SECTOR_SIZE_1K may invalidate it
 		 */
 		for (i = 0; i < FC_WORDS; i++)
-			ctrl->flash_cache[i] = brcmnand_read_fc(ctrl, i);
+			/*
+			 * Flash cache is big endian for parameter pages, at
+			 * least on STB SoCs
+			 */
+			flash_cache[i] = be32_to_cpu(brcmnand_read_fc(ctrl, i));
 
 		brcmnand_soc_data_bus_unprepare(ctrl->soc);
 
@@ -1214,8 +1222,8 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 static uint8_t brcmnand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct brcmnand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	uint8_t ret = 0;
 	int addr, offs;
@@ -1250,8 +1258,7 @@ static uint8_t brcmnand_read_byte(struct mtd_info *mtd)
 		if (host->last_byte > 0 && offs == 0)
 			chip->cmdfunc(mtd, NAND_CMD_RNDOUT, addr, -1);
 
-		ret = ctrl->flash_cache[offs >> 2] >>
-					(24 - ((offs & 0x03) << 3));
+		ret = ctrl->flash_cache[offs];
 		break;
 	case NAND_CMD_GET_FEATURES:
 		if (host->last_byte >= ONFI_SUBFEATURE_PARAM_LEN) {
@@ -1282,8 +1289,8 @@ static void brcmnand_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				   int len)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
-	struct brcmnand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 
 	switch (host->last_cmd) {
 	case NAND_CMD_SET_FEATURES:
@@ -1393,13 +1400,15 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip,
 				u64 addr, unsigned int trans, u32 *buf,
 				u8 *oob, u64 *err_addr)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	int i, j, ret = 0;
 
 	/* Clear error addresses */
 	brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_ADDR, 0);
 	brcmnand_write_reg(ctrl, BRCMNAND_CORR_ADDR, 0);
+	brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_EXT_ADDR, 0);
+	brcmnand_write_reg(ctrl, BRCMNAND_CORR_EXT_ADDR, 0);
 
 	brcmnand_write_reg(ctrl, BRCMNAND_CMD_EXT_ADDRESS,
 			(host->cs << 16) | ((addr >> 32) & 0xffff));
@@ -1454,7 +1463,7 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip,
 static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip,
 			 u64 addr, unsigned int trans, u32 *buf, u8 *oob)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	u64 err_addr = 0;
 	int err;
@@ -1504,7 +1513,7 @@ static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip,
 static int brcmnand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			      uint8_t *buf, int oob_required, int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL;
 
 	return brcmnand_read(mtd, chip, host->last_addr,
@@ -1514,7 +1523,7 @@ static int brcmnand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int brcmnand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 				  uint8_t *buf, int oob_required, int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL;
 	int ret;
 
@@ -1536,7 +1545,7 @@ static int brcmnand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 static int brcmnand_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
 				 int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 
 	brcmnand_set_ecc_enabled(host, 0);
 	brcmnand_read(mtd, chip, (u64)page << chip->page_shift,
@@ -1546,20 +1555,10 @@ static int brcmnand_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
 	return 0;
 }
 
-static int brcmnand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
-				 uint32_t data_offs, uint32_t readlen,
-				 uint8_t *bufpoi, int page)
-{
-	struct brcmnand_host *host = chip->priv;
-
-	return brcmnand_read(mtd, chip, host->last_addr + data_offs,
-			readlen >> FC_SHIFT, (u32 *)bufpoi, NULL);
-}
-
 static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip,
 			  u64 addr, const u32 *buf, u8 *oob)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	struct brcmnand_controller *ctrl = host->ctrl;
 	unsigned int i, j, trans = mtd->writesize >> FC_SHIFT;
 	int status, ret = 0;
@@ -1630,7 +1629,7 @@ out:
 static int brcmnand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 			       const uint8_t *buf, int oob_required, int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	void *oob = oob_required ? chip->oob_poi : NULL;
 
 	brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob);
@@ -1641,7 +1640,7 @@ static int brcmnand_write_page_raw(struct mtd_info *mtd,
 				   struct nand_chip *chip, const uint8_t *buf,
 				   int oob_required, int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	void *oob = oob_required ? chip->oob_poi : NULL;
 
 	brcmnand_set_ecc_enabled(host, 0);
@@ -1660,7 +1659,7 @@ static int brcmnand_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
 static int brcmnand_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
 				  int page)
 {
-	struct brcmnand_host *host = chip->priv;
+	struct brcmnand_host *host = nand_get_controller_data(chip);
 	int ret;
 
 	brcmnand_set_ecc_enabled(host, 0);
@@ -1806,7 +1805,7 @@ static inline int get_blk_adr_bytes(u64 size, u32 writesize)
 
 static int brcmnand_setup_dev(struct brcmnand_host *host)
 {
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->chip);
 	struct nand_chip *chip = &host->chip;
 	struct brcmnand_controller *ctrl = host->ctrl;
 	struct brcmnand_cfg *cfg = &host->hwcfg;
@@ -1816,7 +1815,7 @@ static int brcmnand_setup_dev(struct brcmnand_host *host)
 
 	memset(cfg, 0, sizeof(*cfg));
 
-	ret = of_property_read_u32(chip->flash_node,
+	ret = of_property_read_u32(nand_get_flash_node(chip),
 				   "brcm,nand-oob-sector-size",
 				   &oob_sector);
 	if (ret) {
@@ -1905,16 +1904,14 @@ static int brcmnand_setup_dev(struct brcmnand_host *host)
 	return 0;
 }
 
-static int brcmnand_init_cs(struct brcmnand_host *host)
+static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn)
 {
 	struct brcmnand_controller *ctrl = host->ctrl;
-	struct device_node *dn = host->of_node;
 	struct platform_device *pdev = host->pdev;
 	struct mtd_info *mtd;
 	struct nand_chip *chip;
 	int ret;
 	u16 cfg_offs;
-	struct mtd_part_parser_data ppdata = { .of_node = dn };
 
 	ret = of_property_read_u32(dn, "reg", &host->cs);
 	if (ret) {
@@ -1922,12 +1919,11 @@ static int brcmnand_init_cs(struct brcmnand_host *host)
 		return -ENXIO;
 	}
 
-	mtd = &host->mtd;
+	mtd = nand_to_mtd(&host->chip);
 	chip = &host->chip;
 
-	chip->flash_node = dn;
-	chip->priv = host;
-	mtd->priv = chip;
+	nand_set_flash_node(chip, dn);
+	nand_set_controller_data(chip, host);
 	mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "brcmnand.%d",
 				   host->cs);
 	mtd->owner = THIS_MODULE;
@@ -1945,7 +1941,6 @@ static int brcmnand_init_cs(struct brcmnand_host *host)
 
 	chip->ecc.mode = NAND_ECC_HW;
 	chip->ecc.read_page = brcmnand_read_page;
-	chip->ecc.read_subpage = brcmnand_read_subpage;
 	chip->ecc.write_page = brcmnand_write_page;
 	chip->ecc.read_page_raw = brcmnand_read_page_raw;
 	chip->ecc.write_page_raw = brcmnand_write_page_raw;
@@ -1993,7 +1988,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host)
 	if (nand_scan_tail(mtd))
 		return -ENXIO;
 
-	return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 }
 
 static void brcmnand_save_restore_cs_config(struct brcmnand_host *host,
@@ -2067,8 +2062,8 @@ static int brcmnand_resume(struct device *dev)
 	}
 
 	list_for_each_entry(host, &ctrl->host_list, node) {
-		struct mtd_info *mtd = &host->mtd;
-		struct nand_chip *chip = mtd->priv;
+		struct nand_chip *chip = &host->chip;
+		struct mtd_info *mtd = nand_to_mtd(chip);
 
 		brcmnand_save_restore_cs_config(host, 1);
 
@@ -2134,10 +2129,24 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	if (IS_ERR(ctrl->nand_base))
 		return PTR_ERR(ctrl->nand_base);
 
+	/* Enable clock before using NAND registers */
+	ctrl->clk = devm_clk_get(dev, "nand");
+	if (!IS_ERR(ctrl->clk)) {
+		ret = clk_prepare_enable(ctrl->clk);
+		if (ret)
+			return ret;
+	} else {
+		ret = PTR_ERR(ctrl->clk);
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
+		ctrl->clk = NULL;
+	}
+
 	/* Initialize NAND revision */
 	ret = brcmnand_revision_init(ctrl);
 	if (ret)
-		return ret;
+		goto err;
 
 	/*
 	 * Most chips have this cache at a fixed offset within 'nand' block.
@@ -2146,8 +2155,10 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand-cache");
 	if (res) {
 		ctrl->nand_fc = devm_ioremap_resource(dev, res);
-		if (IS_ERR(ctrl->nand_fc))
-			return PTR_ERR(ctrl->nand_fc);
+		if (IS_ERR(ctrl->nand_fc)) {
+			ret = PTR_ERR(ctrl->nand_fc);
+			goto err;
+		}
 	} else {
 		ctrl->nand_fc = ctrl->nand_base +
 				ctrl->reg_offsets[BRCMNAND_FC_BASE];
@@ -2157,8 +2168,10 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "flash-dma");
 	if (res) {
 		ctrl->flash_dma_base = devm_ioremap_resource(dev, res);
-		if (IS_ERR(ctrl->flash_dma_base))
-			return PTR_ERR(ctrl->flash_dma_base);
+		if (IS_ERR(ctrl->flash_dma_base)) {
+			ret = PTR_ERR(ctrl->flash_dma_base);
+			goto err;
+		}
 
 		flash_dma_writel(ctrl, FLASH_DMA_MODE, 1); /* linked-list */
 		flash_dma_writel(ctrl, FLASH_DMA_ERROR_STATUS, 0);
@@ -2167,13 +2180,16 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 		ctrl->dma_desc = dmam_alloc_coherent(dev,
 						     sizeof(*ctrl->dma_desc),
 						     &ctrl->dma_pa, GFP_KERNEL);
-		if (!ctrl->dma_desc)
-			return -ENOMEM;
+		if (!ctrl->dma_desc) {
+			ret = -ENOMEM;
+			goto err;
+		}
 
 		ctrl->dma_irq = platform_get_irq(pdev, 1);
 		if ((int)ctrl->dma_irq < 0) {
 			dev_err(dev, "missing FLASH_DMA IRQ\n");
-			return -ENODEV;
+			ret = -ENODEV;
+			goto err;
 		}
 
 		ret = devm_request_irq(dev, ctrl->dma_irq,
@@ -2182,7 +2198,7 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 		if (ret < 0) {
 			dev_err(dev, "can't allocate IRQ %d: error %d\n",
 					ctrl->dma_irq, ret);
-			return ret;
+			goto err;
 		}
 
 		dev_info(dev, "enabling FLASH_DMA\n");
@@ -2206,7 +2222,8 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	ctrl->irq = platform_get_irq(pdev, 0);
 	if ((int)ctrl->irq < 0) {
 		dev_err(dev, "no IRQ defined\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto err;
 	}
 
 	/*
@@ -2230,7 +2247,7 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	if (ret < 0) {
 		dev_err(dev, "can't allocate IRQ %d: error %d\n",
 			ctrl->irq, ret);
-		return ret;
+		goto err;
 	}
 
 	for_each_available_child_of_node(dn, child) {
@@ -2238,25 +2255,36 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 			struct brcmnand_host *host;
 
 			host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
-			if (!host)
-				return -ENOMEM;
+			if (!host) {
+				of_node_put(child);
+				ret = -ENOMEM;
+				goto err;
+			}
 			host->pdev = pdev;
 			host->ctrl = ctrl;
-			host->of_node = child;
 
-			ret = brcmnand_init_cs(host);
-			if (ret)
+			ret = brcmnand_init_cs(host, child);
+			if (ret) {
+				devm_kfree(dev, host);
 				continue; /* Try all chip-selects */
+			}
 
 			list_add_tail(&host->node, &ctrl->host_list);
 		}
 	}
 
 	/* No chip-selects could initialize properly */
-	if (list_empty(&ctrl->host_list))
-		return -ENODEV;
+	if (list_empty(&ctrl->host_list)) {
+		ret = -ENODEV;
+		goto err;
+	}
 
 	return 0;
+
+err:
+	clk_disable_unprepare(ctrl->clk);
+	return ret;
+
 }
 EXPORT_SYMBOL_GPL(brcmnand_probe);
 
@@ -2266,7 +2294,9 @@ int brcmnand_remove(struct platform_device *pdev)
 	struct brcmnand_host *host;
 
 	list_for_each_entry(host, &ctrl->host_list, node)
-		nand_release(&host->mtd);
+		nand_release(nand_to_mtd(&host->chip));
+
+	clk_disable_unprepare(ctrl->clk);
 
 	dev_set_drvdata(&pdev->dev, NULL);
 
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 9de78d2a2eb1..aa1a616b9fb6 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -101,7 +101,8 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
 
 static int cafe_device_ready(struct mtd_info *mtd)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000);
 	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
 
@@ -117,7 +118,8 @@ static int cafe_device_ready(struct mtd_info *mtd)
 
 static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	if (usedma)
 		memcpy(cafe->dmabuf + cafe->datalen, buf, len);
@@ -132,7 +134,8 @@ static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	if (usedma)
 		memcpy(buf, cafe->dmabuf + cafe->datalen, len);
@@ -146,7 +149,8 @@ static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static uint8_t cafe_read_byte(struct mtd_info *mtd)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	uint8_t d;
 
 	cafe_read_buf(mtd, &d, 1);
@@ -158,7 +162,8 @@ static uint8_t cafe_read_byte(struct mtd_info *mtd)
 static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			      int column, int page_addr)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	int adrbytes = 0;
 	uint32_t ctl1;
 	uint32_t doneint = 0x80000000;
@@ -313,7 +318,8 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr);
 
@@ -328,7 +334,8 @@ static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
 static irqreturn_t cafe_nand_interrupt(int irq, void *id)
 {
 	struct mtd_info *mtd = id;
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	uint32_t irqs = cafe_readl(cafe, NAND_IRQ);
 	cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ);
 	if (!irqs)
@@ -377,7 +384,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			       uint8_t *buf, int oob_required, int page)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 	unsigned int max_bitflips = 0;
 
 	cafe_dev_dbg(&cafe->pdev->dev, "ECC result %08x SYN1,2 %08x\n",
@@ -519,7 +526,7 @@ static int cafe_nand_write_page_lowlevel(struct mtd_info *mtd,
 					  const uint8_t *buf, int oob_required,
 					  int page)
 {
-	struct cafe_priv *cafe = mtd->priv;
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	chip->write_buf(mtd, buf, mtd->writesize);
 	chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
@@ -598,13 +605,13 @@ static int cafe_nand_probe(struct pci_dev *pdev,
 
 	pci_set_master(pdev);
 
-	mtd = kzalloc(sizeof(*mtd) + sizeof(struct cafe_priv), GFP_KERNEL);
-	if (!mtd)
+	cafe = kzalloc(sizeof(*cafe), GFP_KERNEL);
+	if (!cafe)
 		return  -ENOMEM;
-	cafe = (void *)(&mtd[1]);
 
+	mtd = nand_to_mtd(&cafe->nand);
 	mtd->dev.parent = &pdev->dev;
-	mtd->priv = cafe;
+	nand_set_controller_data(&cafe->nand, cafe);
 
 	cafe->pdev = pdev;
 	cafe->mmio = pci_iomap(pdev, 0, 0);
@@ -784,7 +791,7 @@ static int cafe_nand_probe(struct pci_dev *pdev,
  out_ior:
 	pci_iounmap(pdev, cafe->mmio);
  out_free_mtd:
-	kfree(mtd);
+	kfree(cafe);
  out:
 	return err;
 }
@@ -792,7 +799,8 @@ static int cafe_nand_probe(struct pci_dev *pdev,
 static void cafe_nand_remove(struct pci_dev *pdev)
 {
 	struct mtd_info *mtd = pci_get_drvdata(pdev);
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
 	/* Disable NAND IRQ in global IRQ mask register */
 	cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK);
@@ -804,7 +812,7 @@ static void cafe_nand_remove(struct pci_dev *pdev)
 			2112 + sizeof(struct nand_buffers) +
 			mtd->writesize + mtd->oobsize,
 			cafe->dmabuf, cafe->dmaaddr);
-	kfree(mtd);
+	kfree(cafe);
 }
 
 static const struct pci_device_id cafe_nand_tbl[] = {
@@ -819,7 +827,8 @@ static int cafe_nand_resume(struct pci_dev *pdev)
 {
 	uint32_t ctrl;
 	struct mtd_info *mtd = pci_get_drvdata(pdev);
-	struct cafe_priv *cafe = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct cafe_priv *cafe = nand_get_controller_data(chip);
 
        /* Start off by resetting the NAND controller completely */
 	cafe_writel(cafe, 1, NAND_RESET);
diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c
index 66ec95e6ca6c..6f97ebba52c4 100644
--- a/drivers/mtd/nand/cmx270_nand.c
+++ b/drivers/mtd/nand/cmx270_nand.c
@@ -53,7 +53,7 @@ static struct mtd_partition partition_info[] = {
 
 static u_char cmx270_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	return (readl(this->IO_ADDR_R) >> 16);
 }
@@ -61,7 +61,7 @@ static u_char cmx270_read_byte(struct mtd_info *mtd)
 static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i=0; i<len; i++)
 		writel((*buf++ << 16), this->IO_ADDR_W);
@@ -70,7 +70,7 @@ static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void cmx270_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i=0; i<len; i++)
 		*buf++ = readl(this->IO_ADDR_R) >> 16;
@@ -94,7 +94,7 @@ static void nand_cs_off(void)
 static void cmx270_hwcontrol(struct mtd_info *mtd, int dat,
 			     unsigned int ctrl)
 {
-	struct nand_chip* this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	unsigned int nandaddr = (unsigned int)this->IO_ADDR_W;
 
 	dsb();
@@ -160,10 +160,8 @@ static int __init cmx270_init(void)
 	gpio_direction_input(GPIO_NAND_RB);
 
 	/* Allocate memory for MTD device structure and private data */
-	cmx270_nand_mtd = kzalloc(sizeof(struct mtd_info) +
-				  sizeof(struct nand_chip),
-				  GFP_KERNEL);
-	if (!cmx270_nand_mtd) {
+	this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+	if (!this) {
 		ret = -ENOMEM;
 		goto err_kzalloc;
 	}
@@ -175,12 +173,10 @@ static int __init cmx270_init(void)
 		goto err_ioremap;
 	}
 
-	/* Get pointer to private data */
-	this = (struct nand_chip *)(&cmx270_nand_mtd[1]);
+	cmx270_nand_mtd = nand_to_mtd(this);
 
 	/* Link the private data with the MTD structure */
 	cmx270_nand_mtd->owner = THIS_MODULE;
-	cmx270_nand_mtd->priv = this;
 
 	/* insert callbacks */
 	this->IO_ADDR_R = cmx270_nand_io;
@@ -216,7 +212,7 @@ static int __init cmx270_init(void)
 err_scan:
 	iounmap(cmx270_nand_io);
 err_ioremap:
-	kfree(cmx270_nand_mtd);
+	kfree(this);
 err_kzalloc:
 	gpio_free(GPIO_NAND_RB);
 err_gpio_request:
@@ -240,8 +236,7 @@ static void __exit cmx270_cleanup(void)
 
 	iounmap(cmx270_nand_io);
 
-	/* Free the MTD device structure */
-	kfree (cmx270_nand_mtd);
+	kfree(mtd_to_nand(cmx270_nand_mtd));
 }
 module_exit(cmx270_cleanup);
 
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index aec6045058c7..a65e4e0f57a1 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -97,7 +97,7 @@
 
 static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	while (unlikely(len > 0x800)) {
 		memcpy_fromio(buf, this->IO_ADDR_R, 0x800);
@@ -109,7 +109,7 @@ static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	while (unlikely(len > 0x800)) {
 		memcpy_toio(this->IO_ADDR_R, buf, 0x800);
@@ -121,13 +121,13 @@ static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static unsigned char cs553x_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	return readb(this->IO_ADDR_R);
 }
 
 static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i = 100000;
 
 	while (i && readb(this->IO_ADDR_R + MM_NAND_STS) & CS_NAND_CTLR_BUSY) {
@@ -140,7 +140,7 @@ static void cs553x_write_byte(struct mtd_info *mtd, u_char byte)
 static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
 			     unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned char ctl = (ctrl & ~NAND_CTRL_CHANGE ) ^ 0x01;
@@ -152,7 +152,7 @@ static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd,
 
 static int cs553x_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 	unsigned char foo = readb(mmio_base + MM_NAND_STS);
 
@@ -161,7 +161,7 @@ static int cs553x_device_ready(struct mtd_info *mtd)
 
 static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 
 	writeb(0x07, mmio_base + MM_NAND_ECC_CTL);
@@ -170,7 +170,7 @@ static void cs_enable_hwecc(struct mtd_info *mtd, int mode)
 static int cs_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
 {
 	uint32_t ecc;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	void __iomem *mmio_base = this->IO_ADDR_R;
 
 	ecc = readl(mmio_base + MM_NAND_STS);
@@ -197,17 +197,15 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
 	}
 
 	/* Allocate memory for MTD device structure and private data */
-	new_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
-	if (!new_mtd) {
+	this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+	if (!this) {
 		err = -ENOMEM;
 		goto out;
 	}
 
-	/* Get pointer to private data */
-	this = (struct nand_chip *)(&new_mtd[1]);
+	new_mtd = nand_to_mtd(this);
 
 	/* Link the private data with the MTD structure */
-	new_mtd->priv = this;
 	new_mtd->owner = THIS_MODULE;
 
 	/* map physical address */
@@ -257,7 +255,7 @@ out_free:
 out_ior:
 	iounmap(this->IO_ADDR_R);
 out_mtd:
-	kfree(new_mtd);
+	kfree(this);
 out:
 	return err;
 }
@@ -337,19 +335,19 @@ static void __exit cs553x_cleanup(void)
 		if (!mtd)
 			continue;
 
-		this = cs553x_mtd[i]->priv;
+		this = mtd_to_nand(mtd);
 		mmio_base = this->IO_ADDR_R;
 
 		/* Release resources, unregister device */
-		nand_release(cs553x_mtd[i]);
-		kfree(cs553x_mtd[i]->name);
+		nand_release(mtd);
+		kfree(mtd->name);
 		cs553x_mtd[i] = NULL;
 
 		/* unmap physical address */
 		iounmap(mmio_base);
 
 		/* Free the MTD device structure */
-		kfree(mtd);
+		kfree(this);
 	}
 }
 
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index c72313d66cf6..8cb821b6686e 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -53,7 +53,6 @@
  * outputs in a "wire-AND" configuration, with no per-chip signals.
  */
 struct davinci_nand_info {
-	struct mtd_info		mtd;
 	struct nand_chip	chip;
 	struct nand_ecclayout	ecclayout;
 
@@ -80,8 +79,10 @@ struct davinci_nand_info {
 static DEFINE_SPINLOCK(davinci_nand_lock);
 static bool ecc4_busy;
 
-#define to_davinci_nand(m) container_of(m, struct davinci_nand_info, mtd)
-
+static inline struct davinci_nand_info *to_davinci_nand(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct davinci_nand_info, chip);
+}
 
 static inline unsigned int davinci_nand_readl(struct davinci_nand_info *info,
 		int offset)
@@ -106,7 +107,7 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 	struct davinci_nand_info	*info = to_davinci_nand(mtd);
 	uint32_t			addr = info->current_cs;
-	struct nand_chip		*nand = mtd->priv;
+	struct nand_chip		*nand = mtd_to_nand(mtd);
 
 	/* Did the control lines change? */
 	if (ctrl & NAND_CTRL_CHANGE) {
@@ -192,7 +193,7 @@ static int nand_davinci_calculate_1bit(struct mtd_info *mtd,
 static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat,
 				     u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint32_t eccNand = read_ecc[0] | (read_ecc[1] << 8) |
 					  (read_ecc[2] << 16);
 	uint32_t eccCalc = calc_ecc[0] | (calc_ecc[1] << 8) |
@@ -206,7 +207,7 @@ static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat,
 				dat[diff >> (12 + 3)] ^= BIT((diff >> 12) & 7);
 				return 1;
 			} else {
-				return -1;
+				return -EBADMSG;
 			}
 		} else if (!(diff & (diff - 1))) {
 			/* Single bit ECC error in the ECC itself,
@@ -214,7 +215,7 @@ static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat,
 			return 1;
 		} else {
 			/* Uncorrectable error */
-			return -1;
+			return -EBADMSG;
 		}
 
 	}
@@ -316,14 +317,6 @@ static int nand_davinci_correct_4bit(struct mtd_info *mtd,
 	unsigned num_errors, corrected;
 	unsigned long timeo;
 
-	/* All bytes 0xff?  It's an erased page; ignore its ECC. */
-	for (i = 0; i < 10; i++) {
-		if (ecc_code[i] != 0xff)
-			goto compare;
-	}
-	return 0;
-
-compare:
 	/* Unpack ten bytes into eight 10 bit values.  We know we're
 	 * little-endian, and use type punning for less shifting/masking.
 	 */
@@ -390,7 +383,7 @@ compare:
 			return 0;
 		case 1:		/* five or more errors detected */
 			davinci_nand_readl(info, NAND_ERR_ERRVAL1_OFFSET);
-			return -EIO;
+			return -EBADMSG;
 		case 2:		/* error addresses computed */
 		case 3:
 			num_errors = 1 + ((fsr >> 16) & 0x03);
@@ -447,7 +440,7 @@ correct:
  */
 static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
 		ioread32_rep(chip->IO_ADDR_R, buf, len >> 2);
@@ -460,7 +453,7 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void nand_davinci_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
 		iowrite32_rep(chip->IO_ADDR_R, buf, len >> 2);
@@ -636,6 +629,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 	int				ret;
 	uint32_t			val;
 	nand_ecc_modes_t		ecc_mode;
+	struct mtd_info			*mtd;
 
 	pdata = nand_davinci_get_pdata(pdev);
 	if (IS_ERR(pdata))
@@ -682,8 +676,9 @@ static int nand_davinci_probe(struct platform_device *pdev)
 	info->base		= base;
 	info->vaddr		= vaddr;
 
-	info->mtd.priv		= &info->chip;
-	info->mtd.dev.parent	= &pdev->dev;
+	mtd			= nand_to_mtd(&info->chip);
+	mtd->dev.parent		= &pdev->dev;
+	nand_set_flash_node(&info->chip, pdev->dev.of_node);
 
 	info->chip.IO_ADDR_R	= vaddr;
 	info->chip.IO_ADDR_W	= vaddr;
@@ -746,6 +741,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 			info->chip.ecc.correct = nand_davinci_correct_4bit;
 			info->chip.ecc.hwctl = nand_davinci_hwctl_4bit;
 			info->chip.ecc.bytes = 10;
+			info->chip.ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
 		} else {
 			info->chip.ecc.calculate = nand_davinci_calculate_1bit;
 			info->chip.ecc.correct = nand_davinci_correct_1bit;
@@ -784,7 +780,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 	spin_unlock_irq(&davinci_nand_lock);
 
 	/* Scan to find existence of the device(s) */
-	ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1, NULL);
+	ret = nand_scan_ident(mtd, pdata->mask_chipsel ? 2 : 1, NULL);
 	if (ret < 0) {
 		dev_dbg(&pdev->dev, "no NAND chip(s) found\n");
 		goto err;
@@ -796,9 +792,9 @@ static int nand_davinci_probe(struct platform_device *pdev)
 	 * usable:  10 bytes are needed, not 6.
 	 */
 	if (pdata->ecc_bits == 4) {
-		int	chunks = info->mtd.writesize / 512;
+		int	chunks = mtd->writesize / 512;
 
-		if (!chunks || info->mtd.oobsize < 16) {
+		if (!chunks || mtd->oobsize < 16) {
 			dev_dbg(&pdev->dev, "too small\n");
 			ret = -EINVAL;
 			goto err;
@@ -810,8 +806,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 		 */
 		if (chunks == 1) {
 			info->ecclayout = hwecc4_small;
-			info->ecclayout.oobfree[1].length =
-				info->mtd.oobsize - 16;
+			info->ecclayout.oobfree[1].length = mtd->oobsize - 16;
 			goto syndrome_done;
 		}
 		if (chunks == 4) {
@@ -832,20 +827,15 @@ syndrome_done:
 		info->chip.ecc.layout = &info->ecclayout;
 	}
 
-	ret = nand_scan_tail(&info->mtd);
+	ret = nand_scan_tail(mtd);
 	if (ret < 0)
 		goto err;
 
 	if (pdata->parts)
-		ret = mtd_device_parse_register(&info->mtd, NULL, NULL,
+		ret = mtd_device_parse_register(mtd, NULL, NULL,
 					pdata->parts, pdata->nr_parts);
-	else {
-		struct mtd_part_parser_data	ppdata;
-
-		ppdata.of_node = pdev->dev.of_node;
-		ret = mtd_device_parse_register(&info->mtd, NULL, &ppdata,
-						NULL, 0);
-	}
+	else
+		ret = mtd_device_register(mtd, NULL, 0);
 	if (ret < 0)
 		goto err;
 
@@ -875,7 +865,7 @@ static int nand_davinci_remove(struct platform_device *pdev)
 		ecc4_busy = false;
 	spin_unlock_irq(&davinci_nand_lock);
 
-	nand_release(&info->mtd);
+	nand_release(nand_to_mtd(&info->chip));
 
 	clk_disable_unprepare(info->clk);
 
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 67eb2be0db87..30bf5f690f78 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -75,7 +75,10 @@ MODULE_PARM_DESC(onfi_timing_mode,
  * this macro allows us to convert from an MTD structure to our own
  * device context (denali) structure.
  */
-#define mtd_to_denali(m) container_of(m, struct denali_nand_info, mtd)
+static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
+}
 
 /*
  * These constants are defined by the driver to enable common driver
@@ -986,6 +989,8 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
 				 * than one NAND connected.
 				 */
 				if (err_byte < ECC_SECTOR_SIZE) {
+					struct mtd_info *mtd =
+						nand_to_mtd(&denali->nand);
 					int offset;
 
 					offset = (err_sector *
@@ -995,7 +1000,7 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
 							err_device;
 					/* correct the ECC error */
 					buf[offset] ^= err_correction_value;
-					denali->mtd.ecc_stats.corrected++;
+					mtd->ecc_stats.corrected++;
 					bitflips++;
 				}
 			} else {
@@ -1062,7 +1067,7 @@ static int write_page(struct mtd_info *mtd, struct nand_chip *chip,
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
 	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = denali->mtd.writesize + denali->mtd.oobsize;
+	size_t size = mtd->writesize + mtd->oobsize;
 	uint32_t irq_status;
 	uint32_t irq_mask = INTR_STATUS__DMA_CMD_COMP |
 						INTR_STATUS__PROGRAM_FAIL;
@@ -1160,7 +1165,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
 
 	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = denali->mtd.writesize + denali->mtd.oobsize;
+	size_t size = mtd->writesize + mtd->oobsize;
 
 	uint32_t irq_status;
 	uint32_t irq_mask = INTR_STATUS__ECC_TRANSACTION_DONE |
@@ -1193,14 +1198,14 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 	denali_enable_dma(denali, false);
 
 	if (check_erased_page) {
-		read_oob_data(&denali->mtd, chip->oob_poi, denali->page);
+		read_oob_data(mtd, chip->oob_poi, denali->page);
 
 		/* check ECC failures that may have occurred on erased pages */
 		if (check_erased_page) {
-			if (!is_erased(buf, denali->mtd.writesize))
-				denali->mtd.ecc_stats.failed++;
-			if (!is_erased(buf, denali->mtd.oobsize))
-				denali->mtd.ecc_stats.failed++;
+			if (!is_erased(buf, mtd->writesize))
+				mtd->ecc_stats.failed++;
+			if (!is_erased(buf, mtd->oobsize))
+				mtd->ecc_stats.failed++;
 		}
 	}
 	return max_bitflips;
@@ -1211,7 +1216,7 @@ static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
 	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = denali->mtd.writesize + denali->mtd.oobsize;
+	size_t size = mtd->writesize + mtd->oobsize;
 	uint32_t irq_mask = INTR_STATUS__DMA_CMD_COMP;
 
 	if (page != denali->page) {
@@ -1428,6 +1433,7 @@ static void denali_drv_init(struct denali_nand_info *denali)
 
 int denali_init(struct denali_nand_info *denali)
 {
+	struct mtd_info *mtd = nand_to_mtd(&denali->nand);
 	int ret;
 
 	if (denali->platform == INTEL_CE4100) {
@@ -1447,7 +1453,7 @@ int denali_init(struct denali_nand_info *denali)
 	if (!denali->buf.buf)
 		return -ENOMEM;
 
-	denali->mtd.dev.parent = denali->dev;
+	mtd->dev.parent = denali->dev;
 	denali_hw_init(denali);
 	denali_drv_init(denali);
 
@@ -1463,8 +1469,7 @@ int denali_init(struct denali_nand_info *denali)
 
 	/* now that our ISR is registered, we can enable interrupts */
 	denali_set_intr_modes(denali, true);
-	denali->mtd.name = "denali-nand";
-	denali->mtd.priv = &denali->nand;
+	mtd->name = "denali-nand";
 
 	/* register the driver with the NAND core subsystem */
 	denali->nand.select_chip = denali_select_chip;
@@ -1477,7 +1482,7 @@ int denali_init(struct denali_nand_info *denali)
 	 * this is the first stage in a two step process to register
 	 * with the nand subsystem
 	 */
-	if (nand_scan_ident(&denali->mtd, denali->max_banks, NULL)) {
+	if (nand_scan_ident(mtd, denali->max_banks, NULL)) {
 		ret = -ENXIO;
 		goto failed_req_irq;
 	}
@@ -1485,7 +1490,7 @@ int denali_init(struct denali_nand_info *denali)
 	/* allocate the right size buffer now */
 	devm_kfree(denali->dev, denali->buf.buf);
 	denali->buf.buf = devm_kzalloc(denali->dev,
-			     denali->mtd.writesize + denali->mtd.oobsize,
+			     mtd->writesize + mtd->oobsize,
 			     GFP_KERNEL);
 	if (!denali->buf.buf) {
 		ret = -ENOMEM;
@@ -1500,7 +1505,7 @@ int denali_init(struct denali_nand_info *denali)
 	}
 
 	denali->buf.dma_buf = dma_map_single(denali->dev, denali->buf.buf,
-			     denali->mtd.writesize + denali->mtd.oobsize,
+			     mtd->writesize + mtd->oobsize,
 			     DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(denali->dev, denali->buf.dma_buf)) {
 		dev_err(denali->dev, "Spectra: failed to map DMA buffer\n");
@@ -1521,10 +1526,10 @@ int denali_init(struct denali_nand_info *denali)
 	denali->nand.bbt_erase_shift += (denali->devnum - 1);
 	denali->nand.phys_erase_shift = denali->nand.bbt_erase_shift;
 	denali->nand.chip_shift += (denali->devnum - 1);
-	denali->mtd.writesize <<= (denali->devnum - 1);
-	denali->mtd.oobsize <<= (denali->devnum - 1);
-	denali->mtd.erasesize <<= (denali->devnum - 1);
-	denali->mtd.size = denali->nand.numchips * denali->nand.chipsize;
+	mtd->writesize <<= (denali->devnum - 1);
+	mtd->oobsize <<= (denali->devnum - 1);
+	mtd->erasesize <<= (denali->devnum - 1);
+	mtd->size = denali->nand.numchips * denali->nand.chipsize;
 	denali->bbtskipbytes *= denali->devnum;
 
 	/*
@@ -1551,16 +1556,16 @@ int denali_init(struct denali_nand_info *denali)
 	 * SLC if possible.
 	 * */
 	if (!nand_is_slc(&denali->nand) &&
-			(denali->mtd.oobsize > (denali->bbtskipbytes +
-			ECC_15BITS * (denali->mtd.writesize /
+			(mtd->oobsize > (denali->bbtskipbytes +
+			ECC_15BITS * (mtd->writesize /
 			ECC_SECTOR_SIZE)))) {
 		/* if MLC OOB size is large enough, use 15bit ECC*/
 		denali->nand.ecc.strength = 15;
 		denali->nand.ecc.layout = &nand_15bit_oob;
 		denali->nand.ecc.bytes = ECC_15BITS;
 		iowrite32(15, denali->flash_reg + ECC_CORRECTION);
-	} else if (denali->mtd.oobsize < (denali->bbtskipbytes +
-			ECC_8BITS * (denali->mtd.writesize /
+	} else if (mtd->oobsize < (denali->bbtskipbytes +
+			ECC_8BITS * (mtd->writesize /
 			ECC_SECTOR_SIZE))) {
 		pr_err("Your NAND chip OOB is not large enough to contain 8bit ECC correction codes");
 		goto failed_req_irq;
@@ -1574,11 +1579,11 @@ int denali_init(struct denali_nand_info *denali)
 	denali->nand.ecc.bytes *= denali->devnum;
 	denali->nand.ecc.strength *= denali->devnum;
 	denali->nand.ecc.layout->eccbytes *=
-		denali->mtd.writesize / ECC_SECTOR_SIZE;
+		mtd->writesize / ECC_SECTOR_SIZE;
 	denali->nand.ecc.layout->oobfree[0].offset =
 		denali->bbtskipbytes + denali->nand.ecc.layout->eccbytes;
 	denali->nand.ecc.layout->oobfree[0].length =
-		denali->mtd.oobsize - denali->nand.ecc.layout->eccbytes -
+		mtd->oobsize - denali->nand.ecc.layout->eccbytes -
 		denali->bbtskipbytes;
 
 	/*
@@ -1586,7 +1591,7 @@ int denali_init(struct denali_nand_info *denali)
 	 * contained by each nand chip. blksperchip will help driver to
 	 * know how many blocks is taken by FW.
 	 */
-	denali->totalblks = denali->mtd.size >> denali->nand.phys_erase_shift;
+	denali->totalblks = mtd->size >> denali->nand.phys_erase_shift;
 	denali->blksperchip = denali->totalblks / denali->nand.numchips;
 
 	/* override the default read operations */
@@ -1599,12 +1604,12 @@ int denali_init(struct denali_nand_info *denali)
 	denali->nand.ecc.write_oob = denali_write_oob;
 	denali->nand.erase = denali_erase;
 
-	if (nand_scan_tail(&denali->mtd)) {
+	if (nand_scan_tail(mtd)) {
 		ret = -ENXIO;
 		goto failed_req_irq;
 	}
 
-	ret = mtd_device_register(&denali->mtd, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(denali->dev, "Spectra: Failed to register MTD: %d\n",
 				ret);
@@ -1622,9 +1627,17 @@ EXPORT_SYMBOL(denali_init);
 /* driver exit point */
 void denali_remove(struct denali_nand_info *denali)
 {
+	struct mtd_info *mtd = nand_to_mtd(&denali->nand);
+	/*
+	 * Pre-compute DMA buffer size to avoid any problems in case
+	 * nand_release() ever changes in a way that mtd->writesize and
+	 * mtd->oobsize are not reliable after this call.
+	 */
+	int bufsize = mtd->writesize + mtd->oobsize;
+
+	nand_release(mtd);
 	denali_irq_cleanup(denali->irq, denali);
-	dma_unmap_single(denali->dev, denali->buf.dma_buf,
-			 denali->mtd.writesize + denali->mtd.oobsize,
+	dma_unmap_single(denali->dev, denali->buf.dma_buf, bufsize,
 			 DMA_BIDIRECTIONAL);
 }
 EXPORT_SYMBOL(denali_remove);
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h
index 4b12cd302819..e7ab4866a5da 100644
--- a/drivers/mtd/nand/denali.h
+++ b/drivers/mtd/nand/denali.h
@@ -450,7 +450,6 @@ struct nand_buf {
 #define DT		3
 
 struct denali_nand_info {
-	struct mtd_info mtd;
 	struct nand_chip nand;
 	int flash_bank; /* currently selected chip */
 	int status;
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 0802158a3f75..f170f3c31b34 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -74,10 +74,6 @@ struct doc_priv {
 	int (*late_init)(struct mtd_info *mtd);
 };
 
-/* This is the syndrome computed by the HW ecc generator upon reading an empty
-   page, one with all 0xff for data and stored ecc code. */
-static u_char empty_read_syndrome[6] = { 0x26, 0xff, 0x6d, 0x47, 0x73, 0x7a };
-
 /* This is the ecc value computed by the HW ecc generator upon writing an empty
    page, one with all 0xff for data. */
 static u_char empty_write_ecc[6] = { 0x4b, 0x00, 0xe2, 0x0e, 0x93, 0xf7 };
@@ -299,8 +295,8 @@ static inline int DoC_WaitReady(struct doc_priv *doc)
 
 static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	if (debug)
@@ -311,8 +307,8 @@ static void doc2000_write_byte(struct mtd_info *mtd, u_char datum)
 
 static u_char doc2000_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	u_char ret;
 
@@ -326,8 +322,8 @@ static u_char doc2000_read_byte(struct mtd_info *mtd)
 
 static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 	if (debug)
@@ -343,8 +339,8 @@ static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -358,8 +354,8 @@ static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -379,8 +375,8 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len)
 
 static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	uint16_t ret;
 
 	doc200x_select_chip(mtd, nr);
@@ -425,8 +421,8 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr)
 
 static void __init doc2000_count_chips(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	uint16_t mfrid;
 	int i;
 
@@ -447,7 +443,7 @@ static void __init doc2000_count_chips(struct mtd_info *mtd)
 
 static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct doc_priv *doc = this->priv;
+	struct doc_priv *doc = nand_get_controller_data(this);
 
 	int status;
 
@@ -461,8 +457,8 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this)
 
 static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	WriteDOC(datum, docptr, CDSNSlowIO);
@@ -472,8 +468,8 @@ static void doc2001_write_byte(struct mtd_info *mtd, u_char datum)
 
 static u_char doc2001_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	//ReadDOC(docptr, CDSNSlowIO);
@@ -486,8 +482,8 @@ static u_char doc2001_read_byte(struct mtd_info *mtd)
 
 static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -499,8 +495,8 @@ static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -516,8 +512,8 @@ static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static u_char doc2001plus_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	u_char ret;
 
@@ -531,8 +527,8 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd)
 
 static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -549,8 +545,8 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int le
 
 static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 
@@ -580,8 +576,8 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
 
@@ -607,8 +603,8 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip)
 
 static void doc200x_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int floor = 0;
 
@@ -638,8 +634,8 @@ static void doc200x_select_chip(struct mtd_info *mtd, int chip)
 static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
 			      unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	if (ctrl & NAND_CTRL_CHANGE) {
@@ -661,8 +657,8 @@ static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd,
 
 static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	/*
@@ -767,8 +763,8 @@ static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int colu
 
 static int doc200x_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	if (DoC_is_MillenniumPlus(doc)) {
@@ -807,8 +803,8 @@ static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 
 static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	/* Prime the ECC engine */
@@ -826,8 +822,8 @@ static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode)
 
 static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 
 	/* Prime the ECC engine */
@@ -846,8 +842,8 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode)
 /* This code is only called on write */
 static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	int i;
 	int emptymatch = 1;
@@ -907,12 +903,11 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
 				u_char *read_ecc, u_char *isnull)
 {
 	int i, ret = 0;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	void __iomem *docptr = doc->virtadr;
 	uint8_t calc_ecc[6];
 	volatile u_char dummy;
-	int emptymatch = 1;
 
 	/* flush the pipeline */
 	if (DoC_is_2000(doc)) {
@@ -936,37 +931,9 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
 				calc_ecc[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i);
 			else
 				calc_ecc[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i);
-			if (calc_ecc[i] != empty_read_syndrome[i])
-				emptymatch = 0;
-		}
-		/* If emptymatch=1, the read syndrome is consistent with an
-		   all-0xff data and stored ecc block.  Check the stored ecc. */
-		if (emptymatch) {
-			for (i = 0; i < 6; i++) {
-				if (read_ecc[i] == 0xff)
-					continue;
-				emptymatch = 0;
-				break;
-			}
 		}
-		/* If emptymatch still =1, check the data block. */
-		if (emptymatch) {
-			/* Note: this somewhat expensive test should not be triggered
-			   often.  It could be optimized away by examining the data in
-			   the readbuf routine, and remembering the result. */
-			for (i = 0; i < 512; i++) {
-				if (dat[i] == 0xff)
-					continue;
-				emptymatch = 0;
-				break;
-			}
-		}
-		/* If emptymatch still =1, this is almost certainly a freshly-
-		   erased block, in which case the ECC will not come out right.
-		   We'll suppress the error and tell the caller everything's
-		   OK.  Because it is. */
-		if (!emptymatch)
-			ret = doc_ecc_decode(rs_decoder, dat, calc_ecc);
+
+		ret = doc_ecc_decode(rs_decoder, dat, calc_ecc);
 		if (ret > 0)
 			printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret);
 	}
@@ -1007,8 +974,8 @@ static struct nand_ecclayout doc200x_oobinfo = {
    mh1_page in the DOC private structure. */
 static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	unsigned offs;
 	int ret;
 	size_t retlen;
@@ -1050,8 +1017,8 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
 
 static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	int ret = 0;
 	u_char *buf;
 	struct NFTLMediaHeader *mh;
@@ -1152,8 +1119,8 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio
 /* This is a stripped-down copy of the code in inftlmount.c */
 static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	int ret = 0;
 	u_char *buf;
 	struct INFTLMediaHeader *mh;
@@ -1272,8 +1239,8 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti
 static int __init nftl_scan_bbt(struct mtd_info *mtd)
 {
 	int ret, numparts;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	struct mtd_partition parts[2];
 
 	memset((char *)parts, 0, sizeof(parts));
@@ -1307,8 +1274,8 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd)
 static int __init inftl_scan_bbt(struct mtd_info *mtd)
 {
 	int ret, numparts;
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 	struct mtd_partition parts[5];
 
 	if (this->numchips > doc->chips_per_floor) {
@@ -1360,8 +1327,8 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd)
 
 static inline int __init doc2000_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2000_read_byte;
 	this->write_buf = doc2000_writebuf;
@@ -1376,8 +1343,8 @@ static inline int __init doc2000_init(struct mtd_info *mtd)
 
 static inline int __init doc2001_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2001_read_byte;
 	this->write_buf = doc2001_writebuf;
@@ -1406,8 +1373,8 @@ static inline int __init doc2001_init(struct mtd_info *mtd)
 
 static inline int __init doc2001plus_init(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
-	struct doc_priv *doc = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct doc_priv *doc = nand_get_controller_data(this);
 
 	this->read_byte = doc2001plus_read_byte;
 	this->write_buf = doc2001plus_writebuf;
@@ -1523,8 +1490,8 @@ static int __init doc_probe(unsigned long physadr)
 	for (mtd = doclist; mtd; mtd = doc->nextdoc) {
 		unsigned char oldval;
 		unsigned char newval;
-		nand = mtd->priv;
-		doc = nand->priv;
+		nand = mtd_to_nand(mtd);
+		doc = nand_get_controller_data(nand);
 		/* Use the alias resolution register to determine if this is
 		   in fact the same DOC aliased to a new address.  If writes
 		   to one chip's alias resolution register change the value on
@@ -1556,23 +1523,22 @@ static int __init doc_probe(unsigned long physadr)
 
 	printk(KERN_NOTICE "DiskOnChip found at 0x%lx\n", physadr);
 
-	len = sizeof(struct mtd_info) +
-	    sizeof(struct nand_chip) + sizeof(struct doc_priv) + (2 * sizeof(struct nand_bbt_descr));
-	mtd = kzalloc(len, GFP_KERNEL);
-	if (!mtd) {
+	len = sizeof(struct nand_chip) + sizeof(struct doc_priv) +
+	      (2 * sizeof(struct nand_bbt_descr));
+	nand = kzalloc(len, GFP_KERNEL);
+	if (!nand) {
 		ret = -ENOMEM;
 		goto fail;
 	}
 
-	nand			= (struct nand_chip *) (mtd + 1);
+	mtd			= nand_to_mtd(nand);
 	doc			= (struct doc_priv *) (nand + 1);
 	nand->bbt_td		= (struct nand_bbt_descr *) (doc + 1);
 	nand->bbt_md		= nand->bbt_td + 1;
 
-	mtd->priv		= nand;
 	mtd->owner		= THIS_MODULE;
 
-	nand->priv		= doc;
+	nand_set_controller_data(nand, doc);
 	nand->select_chip	= doc200x_select_chip;
 	nand->cmd_ctrl		= doc200x_hwcontrol;
 	nand->dev_ready		= doc200x_dev_ready;
@@ -1587,6 +1553,7 @@ static int __init doc_probe(unsigned long physadr)
 	nand->ecc.size		= 512;
 	nand->ecc.bytes		= 6;
 	nand->ecc.strength	= 2;
+	nand->ecc.options	= NAND_ECC_GENERIC_ERASED_CHECK;
 	nand->bbt_options	= NAND_BBT_USE_FLASH;
 	/* Skip the automatic BBT scan so we can run it manually */
 	nand->options		|= NAND_SKIP_BBTSCAN;
@@ -1615,7 +1582,7 @@ static int __init doc_probe(unsigned long physadr)
 		   haven't yet added it.  This is handled without incident by
 		   mtd_device_unregister, as far as I can tell. */
 		nand_release(mtd);
-		kfree(mtd);
+		kfree(nand);
 		goto fail;
 	}
 
@@ -1643,14 +1610,14 @@ static void release_nanddoc(void)
 	struct doc_priv *doc;
 
 	for (mtd = doclist; mtd; mtd = nextmtd) {
-		nand = mtd->priv;
-		doc = nand->priv;
+		nand = mtd_to_nand(mtd);
+		doc = nand_get_controller_data(nand);
 
 		nextmtd = doc->nextdoc;
 		nand_release(mtd);
 		iounmap(doc->virtadr);
 		release_mem_region(doc->physadr, DOC_IOREMAP_LEN);
-		kfree(mtd);
+		kfree(nand);
 	}
 }
 
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 408cf69b854b..df4165b02c62 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -242,7 +242,7 @@ static inline void write_nop(void __iomem *docptr)
 static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	uint16_t *p = (uint16_t *) buf;
 	len >>= 1;
 
@@ -253,7 +253,7 @@ static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	uint16_t *p = (uint16_t *) buf;
 	len >>= 1;
 
@@ -297,7 +297,7 @@ static int poll_status(struct docg4_priv *doc)
 static int docg4_wait(struct mtd_info *mtd, struct nand_chip *nand)
 {
 
-	struct docg4_priv *doc = nand->priv;
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	int status = NAND_STATUS_WP;       /* inverse logic?? */
 	dev_dbg(doc->dev, "%s...\n", __func__);
 
@@ -318,8 +318,8 @@ static void docg4_select_chip(struct mtd_info *mtd, int chip)
 	 * Select among multiple cascaded chips ("floors").  Multiple floors are
 	 * not yet supported, so the only valid non-negative value is 0.
 	 */
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
 	dev_dbg(doc->dev, "%s: chip %d\n", __func__, chip);
@@ -337,8 +337,8 @@ static void reset(struct mtd_info *mtd)
 {
 	/* full device reset */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
 	writew(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN,
@@ -375,8 +375,8 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
 	 * Up to four bitflips can be corrected.
 	 */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	int i, numerrs, errpos[4];
 	const uint8_t blank_read_hwecc[8] = {
@@ -464,8 +464,8 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page)
 
 static uint8_t docg4_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 
 	dev_dbg(doc->dev, "%s\n", __func__);
 
@@ -545,8 +545,8 @@ static int pageprog(struct mtd_info *mtd)
 	 * internal buffer out to the flash array, or some such.
 	 */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	int retval = 0;
 
@@ -582,8 +582,8 @@ static void sequence_reset(struct mtd_info *mtd)
 {
 	/* common starting sequence for all operations */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
 	writew(DOC_CTRL_UNKNOWN | DOC_CTRL_CE, docptr + DOC_FLASHCONTROL);
@@ -599,8 +599,8 @@ static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
 {
 	/* first step in reading a page */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
 	dev_dbg(doc->dev,
@@ -626,8 +626,8 @@ static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr)
 {
 	/* first step in writing a page */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 
 	dev_dbg(doc->dev,
@@ -691,8 +691,8 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column,
 {
 	/* handle standard nand commands */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	uint32_t g4_addr = mtd_to_docg4_address(page_addr, column);
 
 	dev_dbg(doc->dev, "%s %x, page_addr=%x, column=%x\n",
@@ -756,7 +756,7 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column,
 static int read_page(struct mtd_info *mtd, struct nand_chip *nand,
 		     uint8_t *buf, int page, bool use_ecc)
 {
-	struct docg4_priv *doc = nand->priv;
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t status, edc_err, *buf16;
 	int bits_corrected = 0;
@@ -836,7 +836,7 @@ static int docg4_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
 			  int page)
 {
-	struct docg4_priv *doc = nand->priv;
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t status;
 
@@ -874,8 +874,8 @@ static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
 
 static int docg4_erase_block(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t g4_page;
 
@@ -923,7 +923,7 @@ static int docg4_erase_block(struct mtd_info *mtd, int page)
 static int write_page(struct mtd_info *mtd, struct nand_chip *nand,
 		       const uint8_t *buf, bool use_ecc)
 {
-	struct docg4_priv *doc = nand->priv;
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint8_t ecc_buf[8];
 
@@ -1003,7 +1003,7 @@ static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand,
 	 */
 
 	/* note that bytes 7..14 are hw generated hamming/ecc and overwritten */
-	struct docg4_priv *doc = nand->priv;
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	doc->oob_page = page;
 	memcpy(doc->oob_buf, nand->oob_poi, 16);
 	return 0;
@@ -1016,8 +1016,8 @@ static int __init read_factory_bbt(struct mtd_info *mtd)
 	 * update the memory-based bbt accordingly.
 	 */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0);
 	uint8_t *buf;
 	int i, block;
@@ -1089,8 +1089,8 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
 	int ret, i;
 	uint8_t *buf;
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	struct nand_bbt_descr *bbtd = nand->badblock_pattern;
 	int page = (int)(ofs >> nand->page_shift);
 	uint32_t g4_addr = mtd_to_docg4_address(page, 0);
@@ -1202,8 +1202,8 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
 	 * things as well, such as call nand_set_defaults().
 	 */
 
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 
 	mtd->size = DOCG4_CHIP_SIZE;
 	mtd->name = "Msys_Diskonchip_G4";
@@ -1261,8 +1261,8 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
 
 static int __init read_id_reg(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct docg4_priv *doc = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct docg4_priv *doc = nand_get_controller_data(nand);
 	void __iomem *docptr = doc->virtadr;
 	uint16_t id1, id2;
 
@@ -1305,17 +1305,16 @@ static int __init probe_docg4(struct platform_device *pdev)
 		return -EIO;
 	}
 
-	len = sizeof(struct mtd_info) + sizeof(struct nand_chip) +
-		sizeof(struct docg4_priv);
-	mtd = kzalloc(len, GFP_KERNEL);
-	if (mtd == NULL) {
+	len = sizeof(struct nand_chip) + sizeof(struct docg4_priv);
+	nand = kzalloc(len, GFP_KERNEL);
+	if (nand == NULL) {
 		retval = -ENOMEM;
-		goto fail;
+		goto fail_unmap;
 	}
-	nand = (struct nand_chip *) (mtd + 1);
+
+	mtd = nand_to_mtd(nand);
 	doc = (struct docg4_priv *) (nand + 1);
-	mtd->priv = nand;
-	nand->priv = doc;
+	nand_set_controller_data(nand, doc);
 	mtd->dev.parent = &pdev->dev;
 	doc->virtadr = virtadr;
 	doc->dev = dev;
@@ -1353,16 +1352,13 @@ static int __init probe_docg4(struct platform_device *pdev)
 	doc->mtd = mtd;
 	return 0;
 
- fail:
+fail:
+	nand_release(mtd); /* deletes partitions and mtd devices */
+	free_bch(doc->bch);
+	kfree(nand);
+
+fail_unmap:
 	iounmap(virtadr);
-	if (mtd) {
-		/* re-declarations avoid compiler warning */
-		struct nand_chip *nand = mtd->priv;
-		struct docg4_priv *doc = nand->priv;
-		nand_release(mtd); /* deletes partitions and mtd devices */
-		free_bch(doc->bch);
-		kfree(mtd);
-	}
 
 	return retval;
 }
@@ -1372,7 +1368,7 @@ static int __exit cleanup_docg4(struct platform_device *pdev)
 	struct docg4_priv *doc = platform_get_drvdata(pdev);
 	nand_release(doc->mtd);
 	free_bch(doc->bch);
-	kfree(doc->mtd);
+	kfree(mtd_to_nand(doc->mtd));
 	iounmap(doc->virtadr);
 	return 0;
 }
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index dcb1f7f4873f..059d5f7ec124 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -48,7 +48,6 @@
 /* mtd information per set */
 
 struct fsl_elbc_mtd {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	struct fsl_lbc_ctrl *ctrl;
 
@@ -144,8 +143,8 @@ static struct nand_bbt_descr bbt_mirror_descr = {
  */
 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
@@ -195,8 +194,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
  */
 static int fsl_elbc_run_command(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
@@ -268,7 +267,7 @@ static int fsl_elbc_run_command(struct mtd_info *mtd)
 
 static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
 {
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
 
@@ -300,8 +299,8 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
 static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
                              int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
@@ -525,8 +524,8 @@ static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip)
  */
 static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
 
@@ -563,8 +562,8 @@ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
  */
 static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 
 	/* If there are still bytes in the FCM, then use the next byte. */
@@ -580,8 +579,8 @@ static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
  */
 static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 	int avail;
 
@@ -605,7 +604,7 @@ static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
  */
 static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
 
 	if (elbc_fcm_ctrl->status != LTESR_CC)
@@ -619,8 +618,8 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 
 static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
 	unsigned int al;
@@ -697,7 +696,7 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
 static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			      uint8_t *buf, int oob_required, int page)
 {
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_lbc_ctrl *ctrl = priv->ctrl;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 
@@ -742,12 +741,13 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 	struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 	struct nand_chip *chip = &priv->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 
 	dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank);
 
 	/* Fill in fsl_elbc_mtd structure */
-	priv->mtd.priv = chip;
-	priv->mtd.dev.parent = priv->dev;
+	mtd->dev.parent = priv->dev;
+	nand_set_flash_node(chip, priv->dev->of_node);
 
 	/* set timeout to maximum */
 	priv->fmr = 15 << FMR_CWTO_SHIFT;
@@ -770,7 +770,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 	chip->bbt_options = NAND_BBT_USE_FLASH;
 
 	chip->controller = &elbc_fcm_ctrl->controller;
-	chip->priv = priv;
+	nand_set_controller_data(chip, priv);
 
 	chip->ecc.read_page = fsl_elbc_read_page;
 	chip->ecc.write_page = fsl_elbc_write_page;
@@ -797,9 +797,11 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
 {
 	struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
-	nand_release(&priv->mtd);
+	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
 
-	kfree(priv->mtd.name);
+	nand_release(mtd);
+
+	kfree(mtd->name);
 
 	if (priv->vbase)
 		iounmap(priv->vbase);
@@ -823,9 +825,8 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev)
 	int bank;
 	struct device *dev;
 	struct device_node *node = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
+	struct mtd_info *mtd;
 
-	ppdata.of_node = pdev->dev.of_node;
 	if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
 		return -ENODEV;
 	lbc = fsl_lbc_ctrl_dev->regs;
@@ -887,8 +888,9 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
-	if (!priv->mtd.name) {
+	mtd = nand_to_mtd(&priv->chip);
+	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
+	if (!nand_to_mtd(&priv->chip)->name) {
 		ret = -ENOMEM;
 		goto err;
 	}
@@ -897,21 +899,21 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev)
 	if (ret)
 		goto err;
 
-	ret = nand_scan_ident(&priv->mtd, 1, NULL);
+	ret = nand_scan_ident(mtd, 1, NULL);
 	if (ret)
 		goto err;
 
-	ret = fsl_elbc_chip_init_tail(&priv->mtd);
+	ret = fsl_elbc_chip_init_tail(mtd);
 	if (ret)
 		goto err;
 
-	ret = nand_scan_tail(&priv->mtd);
+	ret = nand_scan_tail(mtd);
 	if (ret)
 		goto err;
 
 	/* First look for RedBoot table or partitions on the command
 	 * line, these take precedence over device tree information */
-	mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata,
+	mtd_device_parse_register(mtd, part_probe_types, NULL,
 				  NULL, 0);
 
 	printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n",
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 7f4ac8c19001..43f5a3a4873f 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -40,7 +40,6 @@ struct fsl_ifc_ctrl;
 
 /* mtd information per set */
 struct fsl_ifc_mtd {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	struct fsl_ifc_ctrl *ctrl;
 
@@ -230,8 +229,8 @@ static struct nand_bbt_descr bbt_mirror_descr = {
  */
 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 	int buf_num;
@@ -253,8 +252,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 
 static int is_blank(struct mtd_info *mtd, unsigned int bufnum)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2);
 	u32 __iomem *mainarea = (u32 __iomem *)addr;
 	u8 __iomem *oob = addr + mtd->writesize;
@@ -292,8 +291,8 @@ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
  */
 static void fsl_ifc_run_command(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
@@ -370,7 +369,7 @@ static void fsl_ifc_do_read(struct nand_chip *chip,
 			    int oob,
 			    struct mtd_info *mtd)
 {
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 
@@ -409,8 +408,8 @@ static void fsl_ifc_do_read(struct nand_chip *chip,
 /* cmdfunc send commands to the IFC NAND Machine */
 static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			     int column, int page_addr) {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 
@@ -624,8 +623,8 @@ static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip)
  */
 static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
 
 	if (len <= 0) {
@@ -650,8 +649,8 @@ static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
  */
 static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	unsigned int offset;
 
 	/*
@@ -673,8 +672,8 @@ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd)
  */
 static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	uint16_t data;
 
 	/*
@@ -696,8 +695,8 @@ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd)
  */
 static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	int avail;
 
 	if (len < 0) {
@@ -722,7 +721,7 @@ static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
  */
 static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 	u32 nand_fsr;
@@ -751,7 +750,7 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			     uint8_t *buf, int oob_required, int page)
 {
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
 
@@ -782,8 +781,8 @@ static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_ifc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
 
 	dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__,
 							chip->numchips);
@@ -877,12 +876,13 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 	struct fsl_ifc_ctrl *ctrl = priv->ctrl;
 	struct fsl_ifc_regs __iomem *ifc = ctrl->regs;
 	struct nand_chip *chip = &priv->chip;
+	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
 	struct nand_ecclayout *layout;
 	u32 csor;
 
 	/* Fill in fsl_ifc_mtd structure */
-	priv->mtd.priv = chip;
-	priv->mtd.dev.parent = priv->dev;
+	mtd->dev.parent = priv->dev;
+	nand_set_flash_node(chip, priv->dev->of_node);
 
 	/* fill in nand_chip structure */
 	/* set up function call table */
@@ -914,7 +914,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 	}
 
 	chip->controller = &ifc_nand_ctrl->controller;
-	chip->priv = priv;
+	nand_set_controller_data(chip, priv);
 
 	chip->ecc.read_page = fsl_ifc_read_page;
 	chip->ecc.write_page = fsl_ifc_write_page;
@@ -993,9 +993,11 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 
 static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
 {
-	nand_release(&priv->mtd);
+	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
 
-	kfree(priv->mtd.name);
+	nand_release(mtd);
+
+	kfree(mtd->name);
 
 	if (priv->vbase)
 		iounmap(priv->vbase);
@@ -1030,9 +1032,8 @@ static int fsl_ifc_nand_probe(struct platform_device *dev)
 	int ret;
 	int bank;
 	struct device_node *node = dev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
+	struct mtd_info *mtd;
 
-	ppdata.of_node = dev->dev.of_node;
 	if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs)
 		return -ENODEV;
 	ifc = fsl_ifc_ctrl_dev->regs;
@@ -1104,8 +1105,10 @@ static int fsl_ifc_nand_probe(struct platform_device *dev)
 		  IFC_NAND_EVTER_INTR_FTOERIR_EN |
 		  IFC_NAND_EVTER_INTR_WPERIR_EN,
 		  &ifc->ifc_nand.nand_evter_intr_en);
-	priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
-	if (!priv->mtd.name) {
+
+	mtd = nand_to_mtd(&priv->chip);
+	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
+	if (!mtd->name) {
 		ret = -ENOMEM;
 		goto err;
 	}
@@ -1114,22 +1117,21 @@ static int fsl_ifc_nand_probe(struct platform_device *dev)
 	if (ret)
 		goto err;
 
-	ret = nand_scan_ident(&priv->mtd, 1, NULL);
+	ret = nand_scan_ident(mtd, 1, NULL);
 	if (ret)
 		goto err;
 
-	ret = fsl_ifc_chip_init_tail(&priv->mtd);
+	ret = fsl_ifc_chip_init_tail(mtd);
 	if (ret)
 		goto err;
 
-	ret = nand_scan_tail(&priv->mtd);
+	ret = nand_scan_tail(mtd);
 	if (ret)
 		goto err;
 
 	/* First look for RedBoot table or partitions on the command
 	 * line, these take precedence over device tree information */
-	mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata,
-						NULL, 0);
+	mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0);
 
 	dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n",
 		 (unsigned long long)res.start, priv->bank);
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index d326369980c4..cafd12de7276 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -31,7 +31,6 @@
 
 struct fsl_upm_nand {
 	struct device *dev;
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	int last_ctrl;
 	struct mtd_partition *parts;
@@ -49,7 +48,8 @@ struct fsl_upm_nand {
 
 static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo)
 {
-	return container_of(mtdinfo, struct fsl_upm_nand, mtd);
+	return container_of(mtd_to_nand(mtdinfo), struct fsl_upm_nand,
+			    chip);
 }
 
 static int fun_chip_ready(struct mtd_info *mtd)
@@ -66,9 +66,10 @@ static int fun_chip_ready(struct mtd_info *mtd)
 static void fun_wait_rnb(struct fsl_upm_nand *fun)
 {
 	if (fun->rnb_gpio[fun->mchip_number] >= 0) {
+		struct mtd_info *mtd = nand_to_mtd(&fun->chip);
 		int cnt = 1000000;
 
-		while (--cnt && !fun_chip_ready(&fun->mtd))
+		while (--cnt && !fun_chip_ready(mtd))
 			cpu_relax();
 		if (!cnt)
 			dev_err(fun->dev, "tired waiting for RNB\n");
@@ -79,7 +80,7 @@ static void fun_wait_rnb(struct fsl_upm_nand *fun)
 
 static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
 	u32 mar;
 
@@ -109,7 +110,7 @@ static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static void fun_select_chip(struct mtd_info *mtd, int mchip_nr)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd);
 
 	if (mchip_nr == -1) {
@@ -157,9 +158,9 @@ static int fun_chip_init(struct fsl_upm_nand *fun,
 			 const struct device_node *upm_np,
 			 const struct resource *io_res)
 {
+	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
 	int ret;
 	struct device_node *flash_np;
-	struct mtd_part_parser_data ppdata;
 
 	fun->chip.IO_ADDR_R = fun->io_base;
 	fun->chip.IO_ADDR_W = fun->io_base;
@@ -175,30 +176,29 @@ static int fun_chip_init(struct fsl_upm_nand *fun,
 	if (fun->rnb_gpio[0] >= 0)
 		fun->chip.dev_ready = fun_chip_ready;
 
-	fun->mtd.priv = &fun->chip;
-	fun->mtd.dev.parent = fun->dev;
+	mtd->dev.parent = fun->dev;
 
 	flash_np = of_get_next_child(upm_np, NULL);
 	if (!flash_np)
 		return -ENODEV;
 
-	fun->mtd.name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start,
-				  flash_np->name);
-	if (!fun->mtd.name) {
+	nand_set_flash_node(&fun->chip, flash_np);
+	mtd->name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start,
+			      flash_np->name);
+	if (!mtd->name) {
 		ret = -ENOMEM;
 		goto err;
 	}
 
-	ret = nand_scan(&fun->mtd, fun->mchip_count);
+	ret = nand_scan(mtd, fun->mchip_count);
 	if (ret)
 		goto err;
 
-	ppdata.of_node = flash_np;
-	ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 err:
 	of_node_put(flash_np);
 	if (ret)
-		kfree(fun->mtd.name);
+		kfree(mtd->name);
 	return ret;
 }
 
@@ -322,10 +322,11 @@ err1:
 static int fun_remove(struct platform_device *ofdev)
 {
 	struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev);
+	struct mtd_info *mtd = nand_to_mtd(&fun->chip);
 	int i;
 
-	nand_release(&fun->mtd);
-	kfree(fun->mtd.name);
+	nand_release(mtd);
+	kfree(mtd->name);
 
 	for (i = 0; i < fun->mchip_count; i++) {
 		if (fun->rnb_gpio[i] < 0)
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 07af3dc7a4d2..1bdcd4fa26d4 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -299,7 +299,6 @@ static struct fsmc_eccplace fsmc_ecc4_sp_place = {
  */
 struct fsmc_nand_data {
 	u32			pid;
-	struct mtd_info		mtd;
 	struct nand_chip	nand;
 	struct mtd_partition	*partitions;
 	unsigned int		nr_partitions;
@@ -326,13 +325,18 @@ struct fsmc_nand_data {
 	void			(*select_chip)(uint32_t bank, uint32_t busw);
 };
 
+static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand);
+}
+
 /* Assert CS signal based on chipnr */
 static void fsmc_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct fsmc_nand_data *host;
 
-	host = container_of(mtd, struct fsmc_nand_data, mtd);
+	host = mtd_to_fsmc(mtd);
 
 	switch (chipnr) {
 	case -1:
@@ -358,9 +362,8 @@ static void fsmc_select_chip(struct mtd_info *mtd, int chipnr)
  */
 static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	unsigned int bank = host->bank;
 
@@ -445,8 +448,7 @@ static void fsmc_nand_setup(void __iomem *regs, uint32_t bank,
  */
 static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	uint32_t bank = host->bank;
 
@@ -466,8 +468,7 @@ static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode)
 static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data,
 				uint8_t *ecc)
 {
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	uint32_t bank = host->bank;
 	uint32_t ecc_tmp;
@@ -517,8 +518,7 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data,
 static int fsmc_read_hwecc_ecc1(struct mtd_info *mtd, const uint8_t *data,
 				uint8_t *ecc)
 {
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	uint32_t bank = host->bank;
 	uint32_t ecc_tmp;
@@ -629,7 +629,7 @@ unmap_dma:
 static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
 			IS_ALIGNED(len, sizeof(uint32_t))) {
@@ -652,7 +652,7 @@ static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) &&
 			IS_ALIGNED(len, sizeof(uint32_t))) {
@@ -674,9 +674,8 @@ static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
  */
 static void fsmc_read_buf_dma(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct fsmc_nand_data *host;
+	struct fsmc_nand_data *host  = mtd_to_fsmc(mtd);
 
-	host = container_of(mtd, struct fsmc_nand_data, mtd);
 	dma_xfer(host, buf, len, DMA_FROM_DEVICE);
 }
 
@@ -689,9 +688,8 @@ static void fsmc_read_buf_dma(struct mtd_info *mtd, uint8_t *buf, int len)
 static void fsmc_write_buf_dma(struct mtd_info *mtd, const uint8_t *buf,
 		int len)
 {
-	struct fsmc_nand_data *host;
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 
-	host = container_of(mtd, struct fsmc_nand_data, mtd);
 	dma_xfer(host, (void *)buf, len, DMA_TO_DEVICE);
 }
 
@@ -712,8 +710,7 @@ static void fsmc_write_buf_dma(struct mtd_info *mtd, const uint8_t *buf,
 static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 				 uint8_t *buf, int oob_required, int page)
 {
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	struct fsmc_eccplace *ecc_place = host->ecc_place;
 	int i, j, s, stat, eccsize = chip->ecc.size;
 	int eccbytes = chip->ecc.bytes;
@@ -782,9 +779,8 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat,
 			     uint8_t *read_ecc, uint8_t *calc_ecc)
 {
-	struct fsmc_nand_data *host = container_of(mtd,
-					struct fsmc_nand_data, mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsmc_nand_data *host = mtd_to_fsmc(mtd);
 	void __iomem *regs = host->regs_va;
 	unsigned int bank = host->bank;
 	uint32_t err_idx[8];
@@ -926,7 +922,6 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 {
 	struct fsmc_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node __maybe_unused *np = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata = {};
 	struct fsmc_nand_data *host;
 	struct mtd_info *mtd;
 	struct nand_chip *nand;
@@ -1012,12 +1007,12 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 		init_completion(&host->dma_access_complete);
 
 	/* Link all private pointers */
-	mtd = &host->mtd;
+	mtd = nand_to_mtd(&host->nand);
 	nand = &host->nand;
-	mtd->priv = nand;
-	nand->priv = host;
+	nand_set_controller_data(nand, host);
+	nand_set_flash_node(nand, np);
 
-	host->mtd.dev.parent = &pdev->dev;
+	mtd->dev.parent = &pdev->dev;
 	nand->IO_ADDR_R = host->data_va;
 	nand->IO_ADDR_W = host->data_va;
 	nand->cmd_ctrl = fsmc_cmd_ctrl;
@@ -1033,7 +1028,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	nand->options = pdata->options;
 	nand->select_chip = fsmc_select_chip;
 	nand->badblockbits = 7;
-	nand->flash_node = np;
+	nand_set_flash_node(nand, np);
 
 	if (pdata->width == FSMC_NAND_BW16)
 		nand->options |= NAND_BUSWIDTH_16;
@@ -1080,14 +1075,14 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	/*
 	 * Scan to find existence of the device
 	 */
-	if (nand_scan_ident(&host->mtd, 1, NULL)) {
+	if (nand_scan_ident(mtd, 1, NULL)) {
 		ret = -ENXIO;
 		dev_err(&pdev->dev, "No NAND Device found!\n");
 		goto err_scan_ident;
 	}
 
 	if (AMBA_REV_BITS(host->pid) >= 8) {
-		switch (host->mtd.oobsize) {
+		switch (mtd->oobsize) {
 		case 16:
 			nand->ecc.layout = &fsmc_ecc4_16_layout;
 			host->ecc_place = &fsmc_ecc4_sp_place;
@@ -1138,7 +1133,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 		 * generated later in nand_bch_init() later.
 		 */
 		if (nand->ecc.mode != NAND_ECC_SOFT_BCH) {
-			switch (host->mtd.oobsize) {
+			switch (mtd->oobsize) {
 			case 16:
 				nand->ecc.layout = &fsmc_ecc1_16_layout;
 				break;
@@ -1159,7 +1154,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	}
 
 	/* Second stage of scan to fill MTD data-structures */
-	if (nand_scan_tail(&host->mtd)) {
+	if (nand_scan_tail(mtd)) {
 		ret = -ENXIO;
 		goto err_probe;
 	}
@@ -1174,10 +1169,8 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	/*
 	 * Check for partition info passed
 	 */
-	host->mtd.name = "nand";
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(&host->mtd, NULL, &ppdata,
-					host->partitions, host->nr_partitions);
+	mtd->name = "nand";
+	ret = mtd_device_register(mtd, host->partitions, host->nr_partitions);
 	if (ret)
 		goto err_probe;
 
@@ -1207,7 +1200,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
 	struct fsmc_nand_data *host = platform_get_drvdata(pdev);
 
 	if (host) {
-		nand_release(&host->mtd);
+		nand_release(nand_to_mtd(&host->nand));
 
 		if (host->mode == USE_DMA_ACCESS) {
 			dma_release_channel(host->write_dma_chan);
diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index 9ab97f934c37..ded658fc7d73 100644
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -35,12 +35,14 @@
 
 struct gpiomtd {
 	void __iomem		*io_sync;
-	struct mtd_info		mtd_info;
 	struct nand_chip	nand_chip;
 	struct gpio_nand_platdata plat;
 };
 
-#define gpio_nand_getpriv(x) container_of(x, struct gpiomtd, mtd_info)
+static inline struct gpiomtd *gpio_nand_getpriv(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct gpiomtd, nand_chip);
+}
 
 
 #ifdef CONFIG_ARM
@@ -195,7 +197,7 @@ static int gpio_nand_remove(struct platform_device *pdev)
 {
 	struct gpiomtd *gpiomtd = platform_get_drvdata(pdev);
 
-	nand_release(&gpiomtd->mtd_info);
+	nand_release(nand_to_mtd(&gpiomtd->nand_chip));
 
 	if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
 		gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
@@ -208,8 +210,8 @@ static int gpio_nand_probe(struct platform_device *pdev)
 {
 	struct gpiomtd *gpiomtd;
 	struct nand_chip *chip;
+	struct mtd_info *mtd;
 	struct resource *res;
-	struct mtd_part_parser_data ppdata = {};
 	int ret = 0;
 
 	if (!pdev->dev.of_node && !dev_get_platdata(&pdev->dev))
@@ -268,33 +270,31 @@ static int gpio_nand_probe(struct platform_device *pdev)
 		chip->dev_ready = gpio_nand_devready;
 	}
 
+	nand_set_flash_node(chip, pdev->dev.of_node);
 	chip->IO_ADDR_W		= chip->IO_ADDR_R;
 	chip->ecc.mode		= NAND_ECC_SOFT;
 	chip->options		= gpiomtd->plat.options;
 	chip->chip_delay	= gpiomtd->plat.chip_delay;
 	chip->cmd_ctrl		= gpio_nand_cmd_ctrl;
 
-	gpiomtd->mtd_info.priv	= chip;
-	gpiomtd->mtd_info.dev.parent = &pdev->dev;
+	mtd			= nand_to_mtd(chip);
+	mtd->dev.parent		= &pdev->dev;
 
 	platform_set_drvdata(pdev, gpiomtd);
 
 	if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
 		gpio_direction_output(gpiomtd->plat.gpio_nwp, 1);
 
-	if (nand_scan(&gpiomtd->mtd_info, 1)) {
+	if (nand_scan(mtd, 1)) {
 		ret = -ENXIO;
 		goto err_wp;
 	}
 
 	if (gpiomtd->plat.adjust_parts)
-		gpiomtd->plat.adjust_parts(&gpiomtd->plat,
-					   gpiomtd->mtd_info.size);
+		gpiomtd->plat.adjust_parts(&gpiomtd->plat, mtd->size);
 
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(&gpiomtd->mtd_info, NULL, &ppdata,
-					gpiomtd->plat.parts,
-					gpiomtd->plat.num_parts);
+	ret = mtd_device_register(mtd, gpiomtd->plat.parts,
+				  gpiomtd->plat.num_parts);
 	if (!ret)
 		return 0;
 
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 43fa16b5f510..0f68a99fc4ad 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -919,7 +919,7 @@ static int enable_edo_mode(struct gpmi_nand_data *this, int mode)
 {
 	struct resources  *r = &this->resources;
 	struct nand_chip *nand = &this->nand;
-	struct mtd_info	 *mtd = &this->mtd;
+	struct mtd_info	 *mtd = nand_to_mtd(nand);
 	uint8_t *feature;
 	unsigned long rate;
 	int ret;
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 2064adac1d17..235ddcb58f39 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -107,7 +107,7 @@ static irqreturn_t bch_irq(int irq, void *cookie)
 static inline int get_ecc_strength(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
-	struct mtd_info	*mtd = &this->mtd;
+	struct mtd_info	*mtd = nand_to_mtd(&this->nand);
 	int ecc_strength;
 
 	ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8)
@@ -139,8 +139,8 @@ static inline bool gpmi_check_ecc(struct gpmi_nand_data *this)
 static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
-	struct mtd_info *mtd = &this->mtd;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = &this->nand;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	struct nand_oobfree *of = gpmi_hw_ecclayout.oobfree;
 	unsigned int block_mark_bit_offset;
 
@@ -257,7 +257,7 @@ static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this)
 static int legacy_set_geometry(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
-	struct mtd_info *mtd = &this->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&this->nand);
 	unsigned int metadata_size;
 	unsigned int status_size;
 	unsigned int block_mark_bit_offset;
@@ -804,7 +804,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
 {
 	struct bch_geometry *geo = &this->bch_geometry;
 	struct device *dev = this->dev;
-	struct mtd_info *mtd = &this->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&this->nand);
 
 	/* [1] Allocate a command buffer. PAGE_SIZE is enough. */
 	this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA | GFP_KERNEL);
@@ -856,8 +856,8 @@ error_alloc:
 
 static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	int ret;
 
 	/*
@@ -890,16 +890,16 @@ static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
 
 static int gpmi_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	return gpmi_is_ready(this, this->current_chip);
 }
 
 static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	if ((this->current_chip < 0) && (chipnr >= 0))
 		gpmi_begin(this);
@@ -911,8 +911,8 @@ static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
 
 static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	dev_dbg(this->dev, "len is %d\n", len);
 	this->upper_buf	= buf;
@@ -923,8 +923,8 @@ static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	dev_dbg(this->dev, "len is %d\n", len);
 	this->upper_buf	= (uint8_t *)buf;
@@ -935,8 +935,8 @@ static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 static uint8_t gpmi_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	uint8_t *buf = this->data_buffer_dma;
 
 	gpmi_read_buf(mtd, buf, 1);
@@ -994,7 +994,7 @@ static void block_mark_swapping(struct gpmi_nand_data *this,
 static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 				uint8_t *buf, int oob_required, int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *nfc_geo = &this->bch_geometry;
 	void          *payload_virt;
 	dma_addr_t    payload_phys;
@@ -1074,7 +1074,7 @@ static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int gpmi_ecc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
 			uint32_t offs, uint32_t len, uint8_t *buf, int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	void __iomem *bch_regs = this->resources.bch_regs;
 	struct bch_geometry old_geo = this->bch_geometry;
 	struct bch_geometry *geo = &this->bch_geometry;
@@ -1162,7 +1162,7 @@ static int gpmi_ecc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
 static int gpmi_ecc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 				const uint8_t *buf, int oob_required, int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *nfc_geo = &this->bch_geometry;
 	const void *payload_virt;
 	dma_addr_t payload_phys;
@@ -1298,7 +1298,7 @@ exit_auxiliary:
 static int gpmi_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 				int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 
 	dev_dbg(this->dev, "page number is %d\n", page);
 	/* clear the OOB buffer */
@@ -1359,7 +1359,7 @@ static int gpmi_ecc_read_page_raw(struct mtd_info *mtd,
 				  struct nand_chip *chip, uint8_t *buf,
 				  int oob_required, int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *nfc_geo = &this->bch_geometry;
 	int eccsize = nfc_geo->ecc_chunk_size;
 	int eccbits = nfc_geo->ecc_strength * nfc_geo->gf_len;
@@ -1448,7 +1448,7 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd,
 				   const uint8_t *buf,
 				   int oob_required, int page)
 {
-	struct gpmi_nand_data *this = chip->priv;
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	struct bch_geometry *nfc_geo = &this->bch_geometry;
 	int eccsize = nfc_geo->ecc_chunk_size;
 	int eccbits = nfc_geo->ecc_strength * nfc_geo->gf_len;
@@ -1538,8 +1538,8 @@ static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
 
 static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct gpmi_nand_data *this = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct gpmi_nand_data *this = nand_get_controller_data(chip);
 	int ret = 0;
 	uint8_t *block_mark;
 	int column, page, status, chipnr;
@@ -1600,8 +1600,8 @@ static int mx23_check_transcription_stamp(struct gpmi_nand_data *this)
 {
 	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
 	struct device *dev = this->dev;
-	struct mtd_info *mtd = &this->mtd;
 	struct nand_chip *chip = &this->nand;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	unsigned int search_area_size_in_strides;
 	unsigned int stride;
 	unsigned int page;
@@ -1655,8 +1655,8 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this)
 {
 	struct device *dev = this->dev;
 	struct boot_rom_geometry *rom_geo = &this->rom_geometry;
-	struct mtd_info *mtd = &this->mtd;
 	struct nand_chip *chip = &this->nand;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	unsigned int block_size_in_pages;
 	unsigned int search_area_size_in_strides;
 	unsigned int search_area_size_in_pages;
@@ -1735,7 +1735,7 @@ static int mx23_boot_init(struct gpmi_nand_data  *this)
 {
 	struct device *dev = this->dev;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_info *mtd = &this->mtd;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	unsigned int block_count;
 	unsigned int block;
 	int     chipnr;
@@ -1831,14 +1831,13 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)
 
 static void gpmi_nand_exit(struct gpmi_nand_data *this)
 {
-	nand_release(&this->mtd);
+	nand_release(nand_to_mtd(&this->nand));
 	gpmi_free_dma_buffer(this);
 }
 
 static int gpmi_init_last(struct gpmi_nand_data *this)
 {
-	struct mtd_info *mtd = &this->mtd;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = &this->nand;
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct bch_geometry *bch_geo = &this->bch_geometry;
 	int ret;
@@ -1886,21 +1885,20 @@ static int gpmi_init_last(struct gpmi_nand_data *this)
 
 static int gpmi_nand_init(struct gpmi_nand_data *this)
 {
-	struct mtd_info  *mtd = &this->mtd;
 	struct nand_chip *chip = &this->nand;
-	struct mtd_part_parser_data ppdata = {};
+	struct mtd_info  *mtd = nand_to_mtd(chip);
 	int ret;
 
 	/* init current chip */
 	this->current_chip	= -1;
 
 	/* init the MTD data structures */
-	mtd->priv		= chip;
 	mtd->name		= "gpmi-nand";
 	mtd->dev.parent		= this->dev;
 
 	/* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */
-	chip->priv		= this;
+	nand_set_controller_data(chip, this);
+	nand_set_flash_node(chip, this->pdev->dev.of_node);
 	chip->select_chip	= gpmi_select_chip;
 	chip->cmd_ctrl		= gpmi_cmd_ctrl;
 	chip->dev_ready		= gpmi_dev_ready;
@@ -1954,8 +1952,7 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
 	if (ret)
 		goto err_out;
 
-	ppdata.of_node = this->pdev->dev.of_node;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret)
 		goto err_out;
 	return 0;
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
index 544062f65020..4e49a1f5fa27 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
@@ -160,7 +160,6 @@ struct gpmi_nand_data {
 
 	/* MTD / NAND */
 	struct nand_chip	nand;
-	struct mtd_info		mtd;
 
 	/* General-use Variables */
 	int			current_chip;
diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c
index 0cb2e886937d..f8d37f36a81c 100644
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -134,7 +134,6 @@
 
 struct hinfc_host {
 	struct nand_chip	chip;
-	struct mtd_info		mtd;
 	struct device		*dev;
 	void __iomem		*iobase;
 	void __iomem		*mmio;
@@ -189,8 +188,8 @@ static void wait_controller_finished(struct hinfc_host *host)
 
 static void hisi_nfc_dma_transfer(struct hinfc_host *host, int todev)
 {
-	struct mtd_info	*mtd = &host->mtd;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = &host->chip;
+	struct mtd_info	*mtd = nand_to_mtd(chip);
 	unsigned long val;
 	int ret;
 
@@ -262,7 +261,7 @@ static int hisi_nfc_send_cmd_pageprog(struct hinfc_host *host)
 
 static int hisi_nfc_send_cmd_readstart(struct hinfc_host *host)
 {
-	struct mtd_info	*mtd = &host->mtd;
+	struct mtd_info	*mtd = nand_to_mtd(&host->chip);
 
 	if ((host->addr_value[0] == host->cache_addr_value[0]) &&
 	    (host->addr_value[1] == host->cache_addr_value[1]))
@@ -357,8 +356,8 @@ static int hisi_nfc_send_cmd_reset(struct hinfc_host *host, int chipselect)
 
 static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	if (chipselect < 0)
 		return;
@@ -368,8 +367,8 @@ static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect)
 
 static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	if (host->command == NAND_CMD_STATUS)
 		return *(uint8_t *)(host->mmio);
@@ -384,8 +383,8 @@ static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd)
 
 static u16 hisi_nfc_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	host->offset += 2;
 	return *(u16 *)(host->buffer + host->offset - 2);
@@ -394,8 +393,8 @@ static u16 hisi_nfc_read_word(struct mtd_info *mtd)
 static void
 hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	memcpy(host->buffer + host->offset, buf, len);
 	host->offset += len;
@@ -403,8 +402,8 @@ hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	memcpy(buf, host->buffer + host->offset, len);
 	host->offset += len;
@@ -412,8 +411,8 @@ static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void set_addr(struct mtd_info *mtd, int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 	unsigned int command = host->command;
 
 	host->addr_cycle    = 0;
@@ -448,8 +447,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr)
 static void hisi_nfc_cmdfunc(struct mtd_info *mtd, unsigned command, int column,
 		int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct hinfc_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct hinfc_host *host = nand_get_controller_data(chip);
 	int is_cache_invalid = 1;
 	unsigned int flag = 0;
 
@@ -543,7 +542,7 @@ static irqreturn_t hinfc_irq_handle(int irq, void *devid)
 static int hisi_nand_read_page_hwecc(struct mtd_info *mtd,
 	struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
 {
-	struct hinfc_host *host = chip->priv;
+	struct hinfc_host *host = nand_get_controller_data(chip);
 	int max_bitflips = 0, stat = 0, stat_max = 0, status_ecc;
 	int stat_1, stat_2;
 
@@ -575,7 +574,7 @@ static int hisi_nand_read_page_hwecc(struct mtd_info *mtd,
 static int hisi_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 				int page)
 {
-	struct hinfc_host *host = chip->priv;
+	struct hinfc_host *host = nand_get_controller_data(chip);
 
 	chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
 	chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
@@ -643,7 +642,7 @@ static int hisi_nfc_ecc_probe(struct hinfc_host *host)
 	int size, strength, ecc_bits;
 	struct device *dev = host->dev;
 	struct nand_chip *chip = &host->chip;
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	struct device_node *np = host->dev->of_node;
 
 	size = of_get_nand_ecc_step_size(np);
@@ -704,7 +703,6 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 	struct mtd_info   *mtd;
 	struct resource	  *res;
 	struct device_node *np = dev->of_node;
-	struct mtd_part_parser_data ppdata;
 
 	host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
 	if (!host)
@@ -713,7 +711,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, host);
 	chip = &host->chip;
-	mtd  = &host->mtd;
+	mtd  = nand_to_mtd(chip);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -737,11 +735,11 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 		goto err_res;
 	}
 
-	mtd->priv		= chip;
 	mtd->name		= "hisi_nand";
 	mtd->dev.parent         = &pdev->dev;
 
-	chip->priv		= host;
+	nand_set_controller_data(chip, host);
+	nand_set_flash_node(chip, np);
 	chip->cmdfunc		= hisi_nfc_cmdfunc;
 	chip->select_chip	= hisi_nfc_select_chip;
 	chip->read_byte		= hisi_nfc_read_byte;
@@ -805,8 +803,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 		goto err_res;
 	}
 
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(dev, "Err MTD partition=%d\n", ret);
 		goto err_mtd;
@@ -823,7 +820,7 @@ err_res:
 static int hisi_nfc_remove(struct platform_device *pdev)
 {
 	struct hinfc_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->chip);
 
 	nand_release(mtd);
 
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index 5a99a93ed025..b19d2a9a5eb9 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -59,7 +59,6 @@
 #define JZ_NAND_MEM_ADDR_OFFSET 0x10000
 
 struct jz_nand {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	void __iomem *base;
 	struct resource *mem;
@@ -76,13 +75,13 @@ struct jz_nand {
 
 static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd)
 {
-	return container_of(mtd, struct jz_nand, mtd);
+	return container_of(mtd_to_nand(mtd), struct jz_nand, chip);
 }
 
 static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
 {
 	struct jz_nand *nand = mtd_to_jz_nand(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint32_t ctrl;
 	int banknr;
 
@@ -104,7 +103,7 @@ static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
 static void jz_nand_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 {
 	struct jz_nand *nand = mtd_to_jz_nand(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint32_t reg;
 	void __iomem *bank_base = nand->bank_base[nand->selected_bank];
 
@@ -225,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
 	uint32_t t;
 	unsigned int timeout = 1000;
 
-	t = read_ecc[0];
-
-	if (t == 0xff) {
-		for (i = 1; i < 9; ++i)
-			t &= read_ecc[i];
-
-		t &= dat[0];
-		t &= dat[nand->chip.ecc.size / 2];
-		t &= dat[nand->chip.ecc.size - 1];
-
-		if (t == 0xff) {
-			for (i = 1; i < nand->chip.ecc.size - 1; ++i)
-				t &= dat[i];
-			if (t == 0xff)
-				return 0;
-		}
-	}
-
 	for (i = 0; i < 9; ++i)
 		writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i);
 
@@ -255,7 +236,7 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
 	} while (!(status & JZ_NAND_STATUS_DEC_FINISH) && --timeout);
 
 	if (timeout == 0)
-	    return -1;
+		return -ETIMEDOUT;
 
 	reg = readl(nand->base + JZ_REG_NAND_ECC_CTRL);
 	reg &= ~JZ_NAND_ECC_CTRL_ENABLE;
@@ -263,7 +244,7 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
 
 	if (status & JZ_NAND_STATUS_ERROR) {
 		if (status & JZ_NAND_STATUS_UNCOR_ERROR)
-			return -1;
+			return -EBADMSG;
 
 		error_count = (status & JZ_NAND_STATUS_ERR_COUNT) >> 29;
 
@@ -334,8 +315,8 @@ static int jz_nand_detect_bank(struct platform_device *pdev,
 	char gpio_name[9];
 	char res_name[6];
 	uint32_t ctrl;
-	struct mtd_info *mtd = &nand->mtd;
 	struct nand_chip *chip = &nand->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 
 	/* Request GPIO port. */
 	gpio = JZ_GPIO_MEM_CS0 + bank - 1;
@@ -432,9 +413,8 @@ static int jz_nand_probe(struct platform_device *pdev)
 		goto err_iounmap_mmio;
 	}
 
-	mtd		= &nand->mtd;
 	chip		= &nand->chip;
-	mtd->priv	= chip;
+	mtd		= nand_to_mtd(chip);
 	mtd->dev.parent = &pdev->dev;
 	mtd->name	= "jz4740-nand";
 
@@ -445,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev)
 	chip->ecc.size		= 512;
 	chip->ecc.bytes		= 9;
 	chip->ecc.strength	= 4;
+	chip->ecc.options	= NAND_ECC_GENERIC_ERASED_CHECK;
 
 	if (pdata)
 		chip->ecc.layout = pdata->ecc_layout;
@@ -543,7 +524,7 @@ static int jz_nand_remove(struct platform_device *pdev)
 	struct jz_nand *nand = platform_get_drvdata(pdev);
 	size_t i;
 
-	nand_release(&nand->mtd);
+	nand_release(nand_to_mtd(&nand->chip));
 
 	/* Deassert and disable all chips */
 	writel(0, nand->base + JZ_REG_NAND_CTRL);
diff --git a/drivers/mtd/nand/jz4780_bch.c b/drivers/mtd/nand/jz4780_bch.c
new file mode 100644
index 000000000000..755499c6650e
--- /dev/null
+++ b/drivers/mtd/nand/jz4780_bch.c
@@ -0,0 +1,381 @@
+/*
+ * JZ4780 BCH controller
+ *
+ * Copyright (c) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "jz4780_bch.h"
+
+#define BCH_BHCR			0x0
+#define BCH_BHCCR			0x8
+#define BCH_BHCNT			0xc
+#define BCH_BHDR			0x10
+#define BCH_BHPAR0			0x14
+#define BCH_BHERR0			0x84
+#define BCH_BHINT			0x184
+#define BCH_BHINTES			0x188
+#define BCH_BHINTEC			0x18c
+#define BCH_BHINTE			0x190
+
+#define BCH_BHCR_BSEL_SHIFT		4
+#define BCH_BHCR_BSEL_MASK		(0x7f << BCH_BHCR_BSEL_SHIFT)
+#define BCH_BHCR_ENCE			BIT(2)
+#define BCH_BHCR_INIT			BIT(1)
+#define BCH_BHCR_BCHE			BIT(0)
+
+#define BCH_BHCNT_PARITYSIZE_SHIFT	16
+#define BCH_BHCNT_PARITYSIZE_MASK	(0x7f << BCH_BHCNT_PARITYSIZE_SHIFT)
+#define BCH_BHCNT_BLOCKSIZE_SHIFT	0
+#define BCH_BHCNT_BLOCKSIZE_MASK	(0x7ff << BCH_BHCNT_BLOCKSIZE_SHIFT)
+
+#define BCH_BHERR_MASK_SHIFT		16
+#define BCH_BHERR_MASK_MASK		(0xffff << BCH_BHERR_MASK_SHIFT)
+#define BCH_BHERR_INDEX_SHIFT		0
+#define BCH_BHERR_INDEX_MASK		(0x7ff << BCH_BHERR_INDEX_SHIFT)
+
+#define BCH_BHINT_ERRC_SHIFT		24
+#define BCH_BHINT_ERRC_MASK		(0x7f << BCH_BHINT_ERRC_SHIFT)
+#define BCH_BHINT_TERRC_SHIFT		16
+#define BCH_BHINT_TERRC_MASK		(0x7f << BCH_BHINT_TERRC_SHIFT)
+#define BCH_BHINT_DECF			BIT(3)
+#define BCH_BHINT_ENCF			BIT(2)
+#define BCH_BHINT_UNCOR			BIT(1)
+#define BCH_BHINT_ERR			BIT(0)
+
+#define BCH_CLK_RATE			(200 * 1000 * 1000)
+
+/* Timeout for BCH calculation/correction. */
+#define BCH_TIMEOUT_US			100000
+
+struct jz4780_bch {
+	struct device *dev;
+	void __iomem *base;
+	struct clk *clk;
+	struct mutex lock;
+};
+
+static void jz4780_bch_init(struct jz4780_bch *bch,
+			    struct jz4780_bch_params *params, bool encode)
+{
+	u32 reg;
+
+	/* Clear interrupt status. */
+	writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT);
+
+	/* Set up BCH count register. */
+	reg = params->size << BCH_BHCNT_BLOCKSIZE_SHIFT;
+	reg |= params->bytes << BCH_BHCNT_PARITYSIZE_SHIFT;
+	writel(reg, bch->base + BCH_BHCNT);
+
+	/* Initialise and enable BCH. */
+	reg = BCH_BHCR_BCHE | BCH_BHCR_INIT;
+	reg |= params->strength << BCH_BHCR_BSEL_SHIFT;
+	if (encode)
+		reg |= BCH_BHCR_ENCE;
+	writel(reg, bch->base + BCH_BHCR);
+}
+
+static void jz4780_bch_disable(struct jz4780_bch *bch)
+{
+	writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT);
+	writel(BCH_BHCR_BCHE, bch->base + BCH_BHCCR);
+}
+
+static void jz4780_bch_write_data(struct jz4780_bch *bch, const void *buf,
+				  size_t size)
+{
+	size_t size32 = size / sizeof(u32);
+	size_t size8 = size % sizeof(u32);
+	const u32 *src32;
+	const u8 *src8;
+
+	src32 = (const u32 *)buf;
+	while (size32--)
+		writel(*src32++, bch->base + BCH_BHDR);
+
+	src8 = (const u8 *)src32;
+	while (size8--)
+		writeb(*src8++, bch->base + BCH_BHDR);
+}
+
+static void jz4780_bch_read_parity(struct jz4780_bch *bch, void *buf,
+				   size_t size)
+{
+	size_t size32 = size / sizeof(u32);
+	size_t size8 = size % sizeof(u32);
+	u32 *dest32;
+	u8 *dest8;
+	u32 val, offset = 0;
+
+	dest32 = (u32 *)buf;
+	while (size32--) {
+		*dest32++ = readl(bch->base + BCH_BHPAR0 + offset);
+		offset += sizeof(u32);
+	}
+
+	dest8 = (u8 *)dest32;
+	val = readl(bch->base + BCH_BHPAR0 + offset);
+	switch (size8) {
+	case 3:
+		dest8[2] = (val >> 16) & 0xff;
+	case 2:
+		dest8[1] = (val >> 8) & 0xff;
+	case 1:
+		dest8[0] = val & 0xff;
+		break;
+	}
+}
+
+static bool jz4780_bch_wait_complete(struct jz4780_bch *bch, unsigned int irq,
+				     u32 *status)
+{
+	u32 reg;
+	int ret;
+
+	/*
+	 * While we could use interrupts here and sleep until the operation
+	 * completes, the controller works fairly quickly (usually a few
+	 * microseconds) and so the overhead of sleeping until we get an
+	 * interrupt quite noticeably decreases performance.
+	 */
+	ret = readl_poll_timeout(bch->base + BCH_BHINT, reg,
+				 (reg & irq) == irq, 0, BCH_TIMEOUT_US);
+	if (ret)
+		return false;
+
+	if (status)
+		*status = reg;
+
+	writel(reg, bch->base + BCH_BHINT);
+	return true;
+}
+
+/**
+ * jz4780_bch_calculate() - calculate ECC for a data buffer
+ * @bch: BCH device.
+ * @params: BCH parameters.
+ * @buf: input buffer with raw data.
+ * @ecc_code: output buffer with ECC.
+ *
+ * Return: 0 on success, -ETIMEDOUT if timed out while waiting for BCH
+ * controller.
+ */
+int jz4780_bch_calculate(struct jz4780_bch *bch, struct jz4780_bch_params *params,
+			 const u8 *buf, u8 *ecc_code)
+{
+	int ret = 0;
+
+	mutex_lock(&bch->lock);
+	jz4780_bch_init(bch, params, true);
+	jz4780_bch_write_data(bch, buf, params->size);
+
+	if (jz4780_bch_wait_complete(bch, BCH_BHINT_ENCF, NULL)) {
+		jz4780_bch_read_parity(bch, ecc_code, params->bytes);
+	} else {
+		dev_err(bch->dev, "timed out while calculating ECC\n");
+		ret = -ETIMEDOUT;
+	}
+
+	jz4780_bch_disable(bch);
+	mutex_unlock(&bch->lock);
+	return ret;
+}
+EXPORT_SYMBOL(jz4780_bch_calculate);
+
+/**
+ * jz4780_bch_correct() - detect and correct bit errors
+ * @bch: BCH device.
+ * @params: BCH parameters.
+ * @buf: raw data read from the chip.
+ * @ecc_code: ECC read from the chip.
+ *
+ * Given the raw data and the ECC read from the NAND device, detects and
+ * corrects errors in the data.
+ *
+ * Return: the number of bit errors corrected, -EBADMSG if there are too many
+ * errors to correct or -ETIMEDOUT if we timed out waiting for the controller.
+ */
+int jz4780_bch_correct(struct jz4780_bch *bch, struct jz4780_bch_params *params,
+		       u8 *buf, u8 *ecc_code)
+{
+	u32 reg, mask, index;
+	int i, ret, count;
+
+	mutex_lock(&bch->lock);
+
+	jz4780_bch_init(bch, params, false);
+	jz4780_bch_write_data(bch, buf, params->size);
+	jz4780_bch_write_data(bch, ecc_code, params->bytes);
+
+	if (!jz4780_bch_wait_complete(bch, BCH_BHINT_DECF, &reg)) {
+		dev_err(bch->dev, "timed out while correcting data\n");
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+
+	if (reg & BCH_BHINT_UNCOR) {
+		dev_warn(bch->dev, "uncorrectable ECC error\n");
+		ret = -EBADMSG;
+		goto out;
+	}
+
+	/* Correct any detected errors. */
+	if (reg & BCH_BHINT_ERR) {
+		count = (reg & BCH_BHINT_ERRC_MASK) >> BCH_BHINT_ERRC_SHIFT;
+		ret = (reg & BCH_BHINT_TERRC_MASK) >> BCH_BHINT_TERRC_SHIFT;
+
+		for (i = 0; i < count; i++) {
+			reg = readl(bch->base + BCH_BHERR0 + (i * 4));
+			mask = (reg & BCH_BHERR_MASK_MASK) >>
+						BCH_BHERR_MASK_SHIFT;
+			index = (reg & BCH_BHERR_INDEX_MASK) >>
+						BCH_BHERR_INDEX_SHIFT;
+			buf[(index * 2) + 0] ^= mask;
+			buf[(index * 2) + 1] ^= mask >> 8;
+		}
+	} else {
+		ret = 0;
+	}
+
+out:
+	jz4780_bch_disable(bch);
+	mutex_unlock(&bch->lock);
+	return ret;
+}
+EXPORT_SYMBOL(jz4780_bch_correct);
+
+/**
+ * jz4780_bch_get() - get the BCH controller device
+ * @np: BCH device tree node.
+ *
+ * Gets the BCH controller device from the specified device tree node. The
+ * device must be released with jz4780_bch_release() when it is no longer being
+ * used.
+ *
+ * Return: a pointer to jz4780_bch, errors are encoded into the pointer.
+ * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet.
+ */
+static struct jz4780_bch *jz4780_bch_get(struct device_node *np)
+{
+	struct platform_device *pdev;
+	struct jz4780_bch *bch;
+
+	pdev = of_find_device_by_node(np);
+	if (!pdev || !platform_get_drvdata(pdev))
+		return ERR_PTR(-EPROBE_DEFER);
+
+	get_device(&pdev->dev);
+
+	bch = platform_get_drvdata(pdev);
+	clk_prepare_enable(bch->clk);
+
+	bch->dev = &pdev->dev;
+	return bch;
+}
+
+/**
+ * of_jz4780_bch_get() - get the BCH controller from a DT node
+ * @of_node: the node that contains a bch-controller property.
+ *
+ * Get the bch-controller property from the given device tree
+ * node and pass it to jz4780_bch_get to do the work.
+ *
+ * Return: a pointer to jz4780_bch, errors are encoded into the pointer.
+ * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet.
+ */
+struct jz4780_bch *of_jz4780_bch_get(struct device_node *of_node)
+{
+	struct jz4780_bch *bch = NULL;
+	struct device_node *np;
+
+	np = of_parse_phandle(of_node, "ingenic,bch-controller", 0);
+
+	if (np) {
+		bch = jz4780_bch_get(np);
+		of_node_put(np);
+	}
+	return bch;
+}
+EXPORT_SYMBOL(of_jz4780_bch_get);
+
+/**
+ * jz4780_bch_release() - release the BCH controller device
+ * @bch: BCH device.
+ */
+void jz4780_bch_release(struct jz4780_bch *bch)
+{
+	clk_disable_unprepare(bch->clk);
+	put_device(bch->dev);
+}
+EXPORT_SYMBOL(jz4780_bch_release);
+
+static int jz4780_bch_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct jz4780_bch *bch;
+	struct resource *res;
+
+	bch = devm_kzalloc(dev, sizeof(*bch), GFP_KERNEL);
+	if (!bch)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	bch->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(bch->base))
+		return PTR_ERR(bch->base);
+
+	jz4780_bch_disable(bch);
+
+	bch->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(bch->clk)) {
+		dev_err(dev, "failed to get clock: %ld\n", PTR_ERR(bch->clk));
+		return PTR_ERR(bch->clk);
+	}
+
+	clk_set_rate(bch->clk, BCH_CLK_RATE);
+
+	mutex_init(&bch->lock);
+
+	bch->dev = dev;
+	platform_set_drvdata(pdev, bch);
+
+	return 0;
+}
+
+static const struct of_device_id jz4780_bch_dt_match[] = {
+	{ .compatible = "ingenic,jz4780-bch" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, jz4780_bch_dt_match);
+
+static struct platform_driver jz4780_bch_driver = {
+	.probe		= jz4780_bch_probe,
+	.driver	= {
+		.name	= "jz4780-bch",
+		.of_match_table = of_match_ptr(jz4780_bch_dt_match),
+	},
+};
+module_platform_driver(jz4780_bch_driver);
+
+MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>");
+MODULE_AUTHOR("Harvey Hunt <harvey.hunt@imgtec.com>");
+MODULE_DESCRIPTION("Ingenic JZ4780 BCH error correction driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mtd/nand/jz4780_bch.h b/drivers/mtd/nand/jz4780_bch.h
new file mode 100644
index 000000000000..bf4718088a3a
--- /dev/null
+++ b/drivers/mtd/nand/jz4780_bch.h
@@ -0,0 +1,43 @@
+/*
+ * JZ4780 BCH controller
+ *
+ * Copyright (c) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__
+#define __DRIVERS_MTD_NAND_JZ4780_BCH_H__
+
+#include <linux/types.h>
+
+struct device;
+struct device_node;
+struct jz4780_bch;
+
+/**
+ * struct jz4780_bch_params - BCH parameters
+ * @size: data bytes per ECC step.
+ * @bytes: ECC bytes per step.
+ * @strength: number of correctable bits per ECC step.
+ */
+struct jz4780_bch_params {
+	int size;
+	int bytes;
+	int strength;
+};
+
+int jz4780_bch_calculate(struct jz4780_bch *bch,
+				struct jz4780_bch_params *params,
+				const u8 *buf, u8 *ecc_code);
+int jz4780_bch_correct(struct jz4780_bch *bch,
+			      struct jz4780_bch_params *params, u8 *buf,
+			      u8 *ecc_code);
+
+void jz4780_bch_release(struct jz4780_bch *bch);
+struct jz4780_bch *of_jz4780_bch_get(struct device_node *np);
+
+#endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */
diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c
new file mode 100644
index 000000000000..e1c016c9d32d
--- /dev/null
+++ b/drivers/mtd/nand/jz4780_nand.c
@@ -0,0 +1,428 @@
+/*
+ * JZ4780 NAND driver
+ *
+ * Copyright (c) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of_mtd.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+#include <linux/jz4780-nemc.h>
+
+#include "jz4780_bch.h"
+
+#define DRV_NAME	"jz4780-nand"
+
+#define OFFSET_DATA	0x00000000
+#define OFFSET_CMD	0x00400000
+#define OFFSET_ADDR	0x00800000
+
+/* Command delay when there is no R/B pin. */
+#define RB_DELAY_US	100
+
+struct jz4780_nand_cs {
+	unsigned int bank;
+	void __iomem *base;
+};
+
+struct jz4780_nand_controller {
+	struct device *dev;
+	struct jz4780_bch *bch;
+	struct nand_hw_control controller;
+	unsigned int num_banks;
+	struct list_head chips;
+	int selected;
+	struct jz4780_nand_cs cs[];
+};
+
+struct jz4780_nand_chip {
+	struct nand_chip chip;
+	struct list_head chip_list;
+
+	struct nand_ecclayout ecclayout;
+
+	struct gpio_desc *busy_gpio;
+	struct gpio_desc *wp_gpio;
+	unsigned int reading: 1;
+};
+
+static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip);
+}
+
+static inline struct jz4780_nand_controller *to_jz4780_nand_controller(struct nand_hw_control *ctrl)
+{
+	return container_of(ctrl, struct jz4780_nand_controller, controller);
+}
+
+static void jz4780_nand_select_chip(struct mtd_info *mtd, int chipnr)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
+	struct jz4780_nand_cs *cs;
+
+	/* Ensure the currently selected chip is deasserted. */
+	if (chipnr == -1 && nfc->selected >= 0) {
+		cs = &nfc->cs[nfc->selected];
+		jz4780_nemc_assert(nfc->dev, cs->bank, false);
+	}
+
+	nfc->selected = chipnr;
+}
+
+static void jz4780_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				 unsigned int ctrl)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
+	struct jz4780_nand_cs *cs;
+
+	if (WARN_ON(nfc->selected < 0))
+		return;
+
+	cs = &nfc->cs[nfc->selected];
+
+	jz4780_nemc_assert(nfc->dev, cs->bank, ctrl & NAND_NCE);
+
+	if (cmd == NAND_CMD_NONE)
+		return;
+
+	if (ctrl & NAND_ALE)
+		writeb(cmd, cs->base + OFFSET_ADDR);
+	else if (ctrl & NAND_CLE)
+		writeb(cmd, cs->base + OFFSET_CMD);
+}
+
+static int jz4780_nand_dev_ready(struct mtd_info *mtd)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+
+	return !gpiod_get_value_cansleep(nand->busy_gpio);
+}
+
+static void jz4780_nand_ecc_hwctl(struct mtd_info *mtd, int mode)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+
+	nand->reading = (mode == NAND_ECC_READ);
+}
+
+static int jz4780_nand_ecc_calculate(struct mtd_info *mtd, const u8 *dat,
+				     u8 *ecc_code)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
+	struct jz4780_bch_params params;
+
+	/*
+	 * Don't need to generate the ECC when reading, BCH does it for us as
+	 * part of decoding/correction.
+	 */
+	if (nand->reading)
+		return 0;
+
+	params.size = nand->chip.ecc.size;
+	params.bytes = nand->chip.ecc.bytes;
+	params.strength = nand->chip.ecc.strength;
+
+	return jz4780_bch_calculate(nfc->bch, &params, dat, ecc_code);
+}
+
+static int jz4780_nand_ecc_correct(struct mtd_info *mtd, u8 *dat,
+				   u8 *read_ecc, u8 *calc_ecc)
+{
+	struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd);
+	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller);
+	struct jz4780_bch_params params;
+
+	params.size = nand->chip.ecc.size;
+	params.bytes = nand->chip.ecc.bytes;
+	params.strength = nand->chip.ecc.strength;
+
+	return jz4780_bch_correct(nfc->bch, &params, dat, read_ecc);
+}
+
+static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *dev)
+{
+	struct nand_chip *chip = &nand->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller);
+	struct nand_ecclayout *layout = &nand->ecclayout;
+	u32 start, i;
+
+	chip->ecc.bytes = fls((1 + 8) * chip->ecc.size)	*
+				(chip->ecc.strength / 8);
+
+	switch (chip->ecc.mode) {
+	case NAND_ECC_HW:
+		if (!nfc->bch) {
+			dev_err(dev, "HW BCH selected, but BCH controller not found\n");
+			return -ENODEV;
+		}
+
+		chip->ecc.hwctl = jz4780_nand_ecc_hwctl;
+		chip->ecc.calculate = jz4780_nand_ecc_calculate;
+		chip->ecc.correct = jz4780_nand_ecc_correct;
+		/* fall through */
+	case NAND_ECC_SOFT:
+	case NAND_ECC_SOFT_BCH:
+		dev_info(dev, "using %s (strength %d, size %d, bytes %d)\n",
+			(nfc->bch) ? "hardware BCH" : "software ECC",
+			chip->ecc.strength, chip->ecc.size, chip->ecc.bytes);
+		break;
+	case NAND_ECC_NONE:
+		dev_info(dev, "not using ECC\n");
+		break;
+	default:
+		dev_err(dev, "ECC mode %d not supported\n", chip->ecc.mode);
+		return -EINVAL;
+	}
+
+	/* The NAND core will generate the ECC layout for SW ECC */
+	if (chip->ecc.mode != NAND_ECC_HW)
+		return 0;
+
+	/* Generate ECC layout. ECC codes are right aligned in the OOB area. */
+	layout->eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes;
+
+	if (layout->eccbytes > mtd->oobsize - 2) {
+		dev_err(dev,
+			"invalid ECC config: required %d ECC bytes, but only %d are available",
+			layout->eccbytes, mtd->oobsize - 2);
+		return -EINVAL;
+	}
+
+	start = mtd->oobsize - layout->eccbytes;
+	for (i = 0; i < layout->eccbytes; i++)
+		layout->eccpos[i] = start + i;
+
+	layout->oobfree[0].offset = 2;
+	layout->oobfree[0].length = mtd->oobsize - layout->eccbytes - 2;
+
+	chip->ecc.layout = layout;
+	return 0;
+}
+
+static int jz4780_nand_init_chip(struct platform_device *pdev,
+				struct jz4780_nand_controller *nfc,
+				struct device_node *np,
+				unsigned int chipnr)
+{
+	struct device *dev = &pdev->dev;
+	struct jz4780_nand_chip *nand;
+	struct jz4780_nand_cs *cs;
+	struct resource *res;
+	struct nand_chip *chip;
+	struct mtd_info *mtd;
+	const __be32 *reg;
+	int ret = 0;
+
+	cs = &nfc->cs[chipnr];
+
+	reg = of_get_property(np, "reg", NULL);
+	if (!reg)
+		return -EINVAL;
+
+	cs->bank = be32_to_cpu(*reg);
+
+	jz4780_nemc_set_type(nfc->dev, cs->bank, JZ4780_NEMC_BANK_NAND);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, chipnr);
+	cs->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(cs->base))
+		return PTR_ERR(cs->base);
+
+	nand = devm_kzalloc(dev, sizeof(*nand), GFP_KERNEL);
+	if (!nand)
+		return -ENOMEM;
+
+	nand->busy_gpio = devm_gpiod_get_optional(dev, "rb", GPIOD_IN);
+
+	if (IS_ERR(nand->busy_gpio)) {
+		ret = PTR_ERR(nand->busy_gpio);
+		dev_err(dev, "failed to request busy GPIO: %d\n", ret);
+		return ret;
+	} else if (nand->busy_gpio) {
+		nand->chip.dev_ready = jz4780_nand_dev_ready;
+	}
+
+	nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW);
+
+	if (IS_ERR(nand->wp_gpio)) {
+		ret = PTR_ERR(nand->wp_gpio);
+		dev_err(dev, "failed to request WP GPIO: %d\n", ret);
+		return ret;
+	}
+
+	chip = &nand->chip;
+	mtd = nand_to_mtd(chip);
+	mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev),
+				   cs->bank);
+	if (!mtd->name)
+		return -ENOMEM;
+	mtd->dev.parent = dev;
+
+	chip->IO_ADDR_R = cs->base + OFFSET_DATA;
+	chip->IO_ADDR_W = cs->base + OFFSET_DATA;
+	chip->chip_delay = RB_DELAY_US;
+	chip->options = NAND_NO_SUBPAGE_WRITE;
+	chip->select_chip = jz4780_nand_select_chip;
+	chip->cmd_ctrl = jz4780_nand_cmd_ctrl;
+	chip->ecc.mode = NAND_ECC_HW;
+	chip->controller = &nfc->controller;
+	nand_set_flash_node(chip, np);
+
+	ret = nand_scan_ident(mtd, 1, NULL);
+	if (ret)
+		return ret;
+
+	ret = jz4780_nand_init_ecc(nand, dev);
+	if (ret)
+		return ret;
+
+	ret = nand_scan_tail(mtd);
+	if (ret)
+		return ret;
+
+	ret = mtd_device_register(mtd, NULL, 0);
+	if (ret) {
+		nand_release(mtd);
+		return ret;
+	}
+
+	list_add_tail(&nand->chip_list, &nfc->chips);
+
+	return 0;
+}
+
+static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc)
+{
+	struct jz4780_nand_chip *chip;
+
+	while (!list_empty(&nfc->chips)) {
+		chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list);
+		nand_release(nand_to_mtd(&chip->chip));
+		list_del(&chip->chip_list);
+	}
+}
+
+static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc,
+				  struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np;
+	int i = 0;
+	int ret;
+	int num_chips = of_get_child_count(dev->of_node);
+
+	if (num_chips > nfc->num_banks) {
+		dev_err(dev, "found %d chips but only %d banks\n", num_chips, nfc->num_banks);
+		return -EINVAL;
+	}
+
+	for_each_child_of_node(dev->of_node, np) {
+		ret = jz4780_nand_init_chip(pdev, nfc, np, i);
+		if (ret) {
+			jz4780_nand_cleanup_chips(nfc);
+			return ret;
+		}
+
+		i++;
+	}
+
+	return 0;
+}
+
+static int jz4780_nand_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	unsigned int num_banks;
+	struct jz4780_nand_controller *nfc;
+	int ret;
+
+	num_banks = jz4780_nemc_num_banks(dev);
+	if (num_banks == 0) {
+		dev_err(dev, "no banks found\n");
+		return -ENODEV;
+	}
+
+	nfc = devm_kzalloc(dev, sizeof(*nfc) + (sizeof(nfc->cs[0]) * num_banks), GFP_KERNEL);
+	if (!nfc)
+		return -ENOMEM;
+
+	/*
+	 * Check for BCH HW before we call nand_scan_ident, to prevent us from
+	 * having to call it again if the BCH driver returns -EPROBE_DEFER.
+	 */
+	nfc->bch = of_jz4780_bch_get(dev->of_node);
+	if (IS_ERR(nfc->bch))
+		return PTR_ERR(nfc->bch);
+
+	nfc->dev = dev;
+	nfc->num_banks = num_banks;
+
+	spin_lock_init(&nfc->controller.lock);
+	INIT_LIST_HEAD(&nfc->chips);
+	init_waitqueue_head(&nfc->controller.wq);
+
+	ret = jz4780_nand_init_chips(nfc, pdev);
+	if (ret) {
+		if (nfc->bch)
+			jz4780_bch_release(nfc->bch);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, nfc);
+	return 0;
+}
+
+static int jz4780_nand_remove(struct platform_device *pdev)
+{
+	struct jz4780_nand_controller *nfc = platform_get_drvdata(pdev);
+
+	if (nfc->bch)
+		jz4780_bch_release(nfc->bch);
+
+	jz4780_nand_cleanup_chips(nfc);
+
+	return 0;
+}
+
+static const struct of_device_id jz4780_nand_dt_match[] = {
+	{ .compatible = "ingenic,jz4780-nand" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, jz4780_nand_dt_match);
+
+static struct platform_driver jz4780_nand_driver = {
+	.probe		= jz4780_nand_probe,
+	.remove		= jz4780_nand_remove,
+	.driver	= {
+		.name	= DRV_NAME,
+		.of_match_table = of_match_ptr(jz4780_nand_dt_match),
+	},
+};
+module_platform_driver(jz4780_nand_driver);
+
+MODULE_AUTHOR("Alex Smith <alex@alex-smith.me.uk>");
+MODULE_AUTHOR("Harvey Hunt <harvey.hunt@imgtec.com>");
+MODULE_DESCRIPTION("Ingenic JZ4780 NAND driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index 347510978484..9bc435d72a86 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -173,7 +173,6 @@ struct lpc32xx_nand_host {
 	struct nand_chip	nand_chip;
 	struct lpc32xx_mlc_platform_data *pdata;
 	struct clk		*clk;
-	struct mtd_info		mtd;
 	void __iomem		*io_base;
 	int			irq;
 	struct lpc32xx_nand_cfg_mlc	*ncfg;
@@ -275,8 +274,8 @@ static void lpc32xx_nand_setup(struct lpc32xx_nand_host *host)
 static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 				  unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct lpc32xx_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (cmd != NAND_CMD_NONE) {
 		if (ctrl & NAND_CLE)
@@ -291,8 +290,8 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct lpc32xx_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if ((readb(MLC_ISR(host->io_base)) &
 	     (MLCISR_CONTROLLER_READY | MLCISR_NAND_READY)) ==
@@ -318,7 +317,7 @@ static irqreturn_t lpc3xxx_nand_irq(int irq, struct lpc32xx_nand_host *host)
 
 static int lpc32xx_waitfunc_nand(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	if (readb(MLC_ISR(host->io_base)) & MLCISR_NAND_READY)
 		goto exit;
@@ -338,7 +337,7 @@ exit:
 static int lpc32xx_waitfunc_controller(struct mtd_info *mtd,
 				       struct nand_chip *chip)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	if (readb(MLC_ISR(host->io_base)) & MLCISR_CONTROLLER_READY)
 		goto exit;
@@ -389,8 +388,8 @@ static void lpc32xx_dma_complete_func(void *completion)
 static int lpc32xx_xmit_dma(struct mtd_info *mtd, void *mem, int len,
 			    enum dma_transfer_direction dir)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	struct dma_async_tx_descriptor *desc;
 	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 	int res;
@@ -431,7 +430,7 @@ out1:
 static int lpc32xx_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			     uint8_t *buf, int oob_required, int page)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int i, j;
 	uint8_t *oobbuf = chip->oob_poi;
 	uint32_t mlc_isr;
@@ -498,7 +497,7 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd,
 				       const uint8_t *buf, int oob_required,
 				       int page)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	const uint8_t *oobbuf = chip->oob_poi;
 	uint8_t *dma_buf = (uint8_t *)buf;
 	int res;
@@ -543,7 +542,7 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd,
 static int lpc32xx_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 			    int page)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Read whole page - necessary with MLC controller! */
 	lpc32xx_read_page(mtd, chip, host->dummy_buf, 1, page);
@@ -566,7 +565,7 @@ static void lpc32xx_ecc_enable(struct mtd_info *mtd, int mode)
 
 static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host)
 {
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 	dma_cap_mask_t mask;
 
 	if (!host->pdata || !host->pdata->dma_filter) {
@@ -647,7 +646,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	struct nand_chip *nand_chip;
 	struct resource *rc;
 	int res;
-	struct mtd_part_parser_data ppdata = {};
 
 	/* Allocate memory for the device structure (and zero it) */
 	host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
@@ -661,8 +659,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	
 	host->io_base_phy = rc->start;
 
-	mtd = &host->mtd;
 	nand_chip = &host->nand_chip;
+	mtd = nand_to_mtd(nand_chip);
 	if (pdev->dev.of_node)
 		host->ncfg = lpc32xx_parse_dt(&pdev->dev);
 	if (!host->ncfg) {
@@ -681,8 +679,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 
 	host->pdata = dev_get_platdata(&pdev->dev);
 
-	nand_chip->priv = host;		/* link the private data structures */
-	mtd->priv = nand_chip;
+	/* link the private data structures */
+	nand_set_controller_data(nand_chip, host);
+	nand_set_flash_node(nand_chip, pdev->dev.of_node);
 	mtd->dev.parent = &pdev->dev;
 
 	/* Get NAND clock */
@@ -786,9 +785,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 
 	mtd->name = DRV_NAME;
 
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts,
-					host->ncfg->num_parts);
+	res = mtd_device_register(mtd, host->ncfg->parts,
+				  host->ncfg->num_parts);
 	if (!res)
 		return res;
 
@@ -815,7 +813,7 @@ err_exit1:
 static int lpc32xx_nand_remove(struct platform_device *pdev)
 {
 	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 	free_irq(host->irq, host);
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 4f3d4eb17da0..3b8f3735f3e8 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -204,7 +204,6 @@ struct lpc32xx_nand_host {
 	struct nand_chip	nand_chip;
 	struct lpc32xx_slc_platform_data *pdata;
 	struct clk		*clk;
-	struct mtd_info		mtd;
 	void __iomem		*io_base;
 	struct lpc32xx_nand_cfg_slc *ncfg;
 
@@ -260,8 +259,8 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 	unsigned int ctrl)
 {
 	uint32_t tmp;
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Does CE state need to be changed? */
 	tmp = readl(SLC_CFG(host->io_base));
@@ -284,8 +283,8 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int lpc32xx_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int rdy = 0;
 
 	if ((readl(SLC_STAT(host->io_base)) & SLCSTAT_NAND_READY) != 0)
@@ -339,8 +338,8 @@ static int lpc32xx_nand_ecc_calculate(struct mtd_info *mtd,
  */
 static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	return (uint8_t)readl(SLC_DATA(host->io_base));
 }
@@ -350,8 +349,8 @@ static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd)
  */
 static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Direct device read with no ECC */
 	while (len-- > 0)
@@ -363,8 +362,8 @@ static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  */
 static void lpc32xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 
 	/* Direct device write with no ECC */
 	while (len-- > 0)
@@ -428,8 +427,8 @@ static void lpc32xx_dma_complete_func(void *completion)
 static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma,
 			    void *mem, int len, enum dma_transfer_direction dir)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	struct dma_async_tx_descriptor *desc;
 	int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 	int res;
@@ -488,8 +487,8 @@ out1:
 static int lpc32xx_xfer(struct mtd_info *mtd, uint8_t *buf, int eccsubpages,
 			int read)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int i, status = 0;
 	unsigned long timeout;
 	int res;
@@ -604,7 +603,7 @@ static int lpc32xx_nand_read_page_syndrome(struct mtd_info *mtd,
 					   struct nand_chip *chip, uint8_t *buf,
 					   int oob_required, int page)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	int stat, i, status;
 	uint8_t *oobecc, tmpecc[LPC32XX_ECC_SAVE_SIZE];
 
@@ -666,7 +665,7 @@ static int lpc32xx_nand_write_page_syndrome(struct mtd_info *mtd,
 					    const uint8_t *buf,
 					    int oob_required, int page)
 {
-	struct lpc32xx_nand_host *host = chip->priv;
+	struct lpc32xx_nand_host *host = nand_get_controller_data(chip);
 	uint8_t *pb = chip->oob_poi + chip->ecc.layout->eccpos[0];
 	int error;
 
@@ -703,7 +702,7 @@ static int lpc32xx_nand_write_page_raw_syndrome(struct mtd_info *mtd,
 
 static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
 {
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 	dma_cap_mask_t mask;
 
 	if (!host->pdata || !host->pdata->dma_filter) {
@@ -763,7 +762,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	struct mtd_info *mtd;
 	struct nand_chip *chip;
 	struct resource *rc;
-	struct mtd_part_parser_data ppdata = {};
 	int res;
 
 	rc = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -800,10 +798,10 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 
 	host->pdata = dev_get_platdata(&pdev->dev);
 
-	mtd = &host->mtd;
 	chip = &host->nand_chip;
-	chip->priv = host;
-	mtd->priv = chip;
+	mtd = nand_to_mtd(chip);
+	nand_set_controller_data(chip, host);
+	nand_set_flash_node(chip, pdev->dev.of_node);
 	mtd->owner = THIS_MODULE;
 	mtd->dev.parent = &pdev->dev;
 
@@ -908,9 +906,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	}
 
 	mtd->name = "nxp_lpc3220_slc";
-	ppdata.of_node = pdev->dev.of_node;
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts,
-					host->ncfg->num_parts);
+	res = mtd_device_register(mtd, host->ncfg->parts,
+				  host->ncfg->num_parts);
 	if (!res)
 		return res;
 
@@ -933,7 +930,7 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
 {
 	uint32_t tmp;
 	struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 	dma_release_channel(host->dma_chan);
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index d6bbde4a5331..6b93e899d4e9 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -118,7 +118,6 @@
 #define NFC_TIMEOUT		(HZ / 10)	/* 1/10 s */
 
 struct mpc5121_nfc_prv {
-	struct mtd_info		mtd;
 	struct nand_chip	chip;
 	int			irq;
 	void __iomem		*regs;
@@ -135,8 +134,8 @@ static void mpc5121_nfc_done(struct mtd_info *mtd);
 /* Read NFC register */
 static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	return in_be16(prv->regs + reg);
 }
@@ -144,8 +143,8 @@ static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 /* Write NFC register */
 static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	out_be16(prv->regs + reg, val);
 }
@@ -214,8 +213,8 @@ static inline void mpc5121_nfc_send_read_status(struct mtd_info *mtd)
 static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
 {
 	struct mtd_info *mtd = data;
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK);
 	wake_up(&prv->irq_waitq);
@@ -226,8 +225,8 @@ static irqreturn_t mpc5121_nfc_irq(int irq, void *data)
 /* Wait for operation complete */
 static void mpc5121_nfc_done(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	int rv;
 
 	if ((nfc_read(mtd, NFC_CONFIG2) & NFC_INT) == 0) {
@@ -246,7 +245,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd)
 /* Do address cycle(s) */
 static void mpc5121_nfc_addr_cycle(struct mtd_info *mtd, int column, int page)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 pagemask = chip->pagemask;
 
 	if (column != -1) {
@@ -281,8 +280,8 @@ static void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip)
 /* Init external chip select logic on ADS5121 board */
 static int ads5121_chipselect_init(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	struct device_node *dn;
 
 	dn = of_find_compatible_node(NULL, NULL, "fsl,mpc5121ads-cpld");
@@ -303,8 +302,8 @@ static int ads5121_chipselect_init(struct mtd_info *mtd)
 /* Control chips select signal on ADS5121 board */
 static void ads5121_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mpc5121_nfc_prv *prv = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	u8 v;
 
 	v = in_8(prv->csreg);
@@ -333,8 +332,8 @@ static int mpc5121_nfc_dev_ready(struct mtd_info *mtd)
 static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 							int column, int page)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	prv->column = (column >= 0) ? column : 0;
 	prv->spareonly = 0;
@@ -406,8 +405,8 @@ static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 						u8 *buffer, uint size, int wr)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mpc5121_nfc_prv *prv = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	uint o, s, sbsize, blksize;
 
 	/*
@@ -458,8 +457,8 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char *buf, int len,
 									int wr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	uint c = prv->column;
 	uint l;
 
@@ -536,8 +535,8 @@ static u16 mpc5121_nfc_read_word(struct mtd_info *mtd)
  */
 static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	struct mpc512x_reset_module *rm;
 	struct device_node *rmnode;
 	uint rcw_pagesize = 0;
@@ -615,8 +614,8 @@ out:
 /* Free driver resources */
 static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	if (prv->clk)
 		clk_disable_unprepare(prv->clk);
@@ -639,7 +638,6 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 	int resettime = 0;
 	int retval = 0;
 	int rev, len;
-	struct mtd_part_parser_data ppdata;
 
 	/*
 	 * Check SoC revision. This driver supports only NFC
@@ -655,12 +653,12 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 	if (!prv)
 		return -ENOMEM;
 
-	mtd = &prv->mtd;
 	chip = &prv->chip;
+	mtd = nand_to_mtd(chip);
 
-	mtd->priv = chip;
 	mtd->dev.parent = dev;
-	chip->priv = prv;
+	nand_set_controller_data(chip, prv);
+	nand_set_flash_node(chip, dn);
 	prv->dev = dev;
 
 	/* Read NFC configuration from Reset Config Word */
@@ -703,7 +701,6 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 	}
 
 	mtd->name = "MPC5121 NAND";
-	ppdata.of_node = dn;
 	chip->dev_ready = mpc5121_nfc_dev_ready;
 	chip->cmdfunc = mpc5121_nfc_command;
 	chip->read_byte = mpc5121_nfc_read_byte;
@@ -815,7 +812,7 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 	dev_set_drvdata(dev, mtd);
 
 	/* Register device in MTD */
-	retval = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	retval = mtd_device_register(mtd, NULL, 0);
 	if (retval) {
 		dev_err(dev, "Error adding MTD device!\n");
 		goto error;
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 136e73a3e07e..854c832597aa 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -173,7 +173,6 @@ struct mxc_nand_devtype_data {
 };
 
 struct mxc_nand_host {
-	struct mtd_info		mtd;
 	struct nand_chip	nand;
 	struct device		*dev;
 
@@ -532,8 +531,8 @@ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas
 
 static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint32_t tmp;
 
 	tmp = readl(NFC_V3_CONFIG1);
@@ -548,8 +547,8 @@ static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
 
 static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/* NANDFC buffer 0 is used for page read/write */
 	writew(host->active_cs << 4, NFC_V1_V2_BUF_ADDR);
@@ -562,8 +561,8 @@ static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
 
 static void send_page_v1(struct mtd_info *mtd, unsigned int ops)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	int bufs, i;
 
 	if (mtd->writesize > 512)
@@ -663,8 +662,8 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode)
 static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
 				 u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/*
 	 * 1-Bit errors are automatically corrected in HW.  No need for
@@ -675,7 +674,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
 
 	if (((ecc_status & 0x3) == 2) || ((ecc_status >> 2) == 2)) {
 		pr_debug("MXC_NAND: HWECC uncorrectable 2-bit ECC error\n");
-		return -1;
+		return -EBADMSG;
 	}
 
 	return 0;
@@ -684,8 +683,8 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
 static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
 				 u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u32 ecc_stat, err;
 	int no_subpages = 1;
 	int ret = 0;
@@ -702,7 +701,7 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
 		err = ecc_stat & ecc_bit_mask;
 		if (err > err_limit) {
 			printk(KERN_WARNING "UnCorrectable RS-ECC Error\n");
-			return -1;
+			return -EBADMSG;
 		} else {
 			ret += err;
 		}
@@ -722,8 +721,8 @@ static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
 static u_char mxc_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint8_t ret;
 
 	/* Check for status request */
@@ -746,8 +745,8 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd)
 
 static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t ret;
 
 	ret = *(uint16_t *)(host->data_buf + host->buf_start);
@@ -762,8 +761,8 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
 static void mxc_nand_write_buf(struct mtd_info *mtd,
 				const u_char *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u16 col = host->buf_start;
 	int n = mtd->oobsize + mtd->writesize - col;
 
@@ -780,8 +779,8 @@ static void mxc_nand_write_buf(struct mtd_info *mtd,
  */
 static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	u16 col = host->buf_start;
 	int n = mtd->oobsize + mtd->writesize - col;
 
@@ -796,8 +795,8 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  * deselect of the NAND chip */
 static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (chip == -1) {
 		/* Disable the NFC clock */
@@ -817,8 +816,8 @@ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
 
 static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (chip == -1) {
 		/* Disable the NFC clock */
@@ -850,8 +849,8 @@ static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
  */
 static void copy_spare(struct mtd_info *mtd, bool bfrom)
 {
-	struct nand_chip *this = mtd->priv;
-	struct mxc_nand_host *host = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(this);
 	u16 i, oob_chunk_size;
 	u16 num_chunks = mtd->writesize / 512;
 
@@ -893,8 +892,8 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom)
  */
 static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	/* Write out column address, if necessary */
 	if (column != -1) {
@@ -979,8 +978,8 @@ static void ecc_8bit_layout_4k(struct nand_ecclayout *layout)
 
 static void preset_v1(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t config1 = 0;
 
 	if (nand_chip->ecc.mode == NAND_ECC_HW && mtd->writesize)
@@ -1007,8 +1006,8 @@ static void preset_v1(struct mtd_info *mtd)
 
 static void preset_v2(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 	uint16_t config1 = 0;
 
 	config1 |= NFC_V2_CONFIG1_FP_INT;
@@ -1053,8 +1052,8 @@ static void preset_v2(struct mtd_info *mtd)
 
 static void preset_v3(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mxc_nand_host *host = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(chip);
 	uint32_t config2, config3;
 	int i, addr_phases;
 
@@ -1067,8 +1066,7 @@ static void preset_v3(struct mtd_info *mtd)
 
 	/* Blocks to be unlocked */
 	for (i = 0; i < NAND_MAX_CHIPS; i++)
-		writel(0x0 |	(0xffff << 16),
-				NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
+		writel(0xffff << 16, NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
 
 	writel(0, NFC_V3_IPC);
 
@@ -1125,8 +1123,8 @@ static void preset_v3(struct mtd_info *mtd)
 static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
 				int column, int page_addr)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct mxc_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
 
 	pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
 	      command, column, page_addr);
@@ -1515,15 +1513,15 @@ static int mxcnd_probe(struct platform_device *pdev)
 	host->dev = &pdev->dev;
 	/* structures must be linked */
 	this = &host->nand;
-	mtd = &host->mtd;
-	mtd->priv = this;
+	mtd = nand_to_mtd(this);
 	mtd->dev.parent = &pdev->dev;
 	mtd->name = DRIVER_NAME;
 
 	/* 50 us command delay time */
 	this->chip_delay = 5;
 
-	this->priv = host;
+	nand_set_controller_data(this, host);
+	nand_set_flash_node(this, pdev->dev.of_node),
 	this->dev_ready = mxc_nand_dev_ready;
 	this->cmdfunc = mxc_nand_command;
 	this->read_byte = mxc_nand_read_byte;
@@ -1683,9 +1681,7 @@ static int mxcnd_probe(struct platform_device *pdev)
 
 	/* Register the partitions */
 	mtd_device_parse_register(mtd, part_probes,
-			&(struct mtd_part_parser_data){
-				.of_node = pdev->dev.of_node,
-			},
+			NULL,
 			host->pdata.parts,
 			host->pdata.nr_parts);
 
@@ -1704,7 +1700,7 @@ static int mxcnd_remove(struct platform_device *pdev)
 {
 	struct mxc_nand_host *host = platform_get_drvdata(pdev);
 
-	nand_release(&host->mtd);
+	nand_release(nand_to_mtd(&host->nand));
 	if (host->clk_act)
 		clk_disable_unprepare(host->clk);
 
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ece544efccc3..f2c8ff398d6c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -106,7 +106,7 @@ DEFINE_LED_TRIGGER(nand_led_trigger);
 static int check_offs_len(struct mtd_info *mtd,
 					loff_t ofs, uint64_t len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret = 0;
 
 	/* Start address must align on block boundary */
@@ -132,7 +132,7 @@ static int check_offs_len(struct mtd_info *mtd,
  */
 static void nand_release_device(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* Release the controller and the chip */
 	spin_lock(&chip->controller->lock);
@@ -150,7 +150,7 @@ static void nand_release_device(struct mtd_info *mtd)
  */
 static uint8_t nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	return readb(chip->IO_ADDR_R);
 }
 
@@ -163,7 +163,7 @@ static uint8_t nand_read_byte(struct mtd_info *mtd)
  */
 static uint8_t nand_read_byte16(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R));
 }
 
@@ -175,7 +175,7 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd)
  */
 static u16 nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	return readw(chip->IO_ADDR_R);
 }
 
@@ -188,7 +188,7 @@ static u16 nand_read_word(struct mtd_info *mtd)
  */
 static void nand_select_chip(struct mtd_info *mtd, int chipnr)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	switch (chipnr) {
 	case -1:
@@ -211,7 +211,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
  */
 static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	chip->write_buf(mtd, &byte, 1);
 }
@@ -225,7 +225,7 @@ static void nand_write_byte(struct mtd_info *mtd, uint8_t byte)
  */
 static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint16_t word = byte;
 
 	/*
@@ -257,7 +257,7 @@ static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte)
  */
 static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	iowrite8_rep(chip->IO_ADDR_W, buf, len);
 }
@@ -272,7 +272,7 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
  */
 static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	ioread8_rep(chip->IO_ADDR_R, buf, len);
 }
@@ -287,7 +287,7 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
  */
 static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u16 *p = (u16 *) buf;
 
 	iowrite16_rep(chip->IO_ADDR_W, p, len >> 1);
@@ -303,7 +303,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
  */
 static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u16 *p = (u16 *) buf;
 
 	ioread16_rep(chip->IO_ADDR_R, p, len >> 1);
@@ -320,7 +320,7 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 {
 	int page, chipnr, res = 0, i = 0;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u16 bad;
 
 	if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
@@ -380,7 +380,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
  */
 static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct mtd_oob_ops ops;
 	uint8_t buf[2] = { 0, 0 };
 	int ret = 0, res, i = 0;
@@ -430,7 +430,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 */
 static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int res, ret = 0;
 
 	if (!(chip->bbt_options & NAND_BBT_NO_OOB_BBM)) {
@@ -471,7 +471,7 @@ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
  */
 static int nand_check_wp(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* Broken xD cards report WP despite being writable */
 	if (chip->options & NAND_BROKEN_XD)
@@ -491,7 +491,7 @@ static int nand_check_wp(struct mtd_info *mtd)
  */
 static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (!chip->bbt)
 		return 0;
@@ -512,7 +512,7 @@ static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
 			       int allowbbt)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (!chip->bbt)
 		return chip->block_bad(mtd, ofs, getchip);
@@ -531,7 +531,7 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
  */
 static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int i;
 
 	/* Wait for the device to get ready */
@@ -551,7 +551,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
  */
 void nand_wait_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	unsigned long timeo = 400;
 
 	if (in_interrupt() || oops_in_progress)
@@ -582,7 +582,7 @@ EXPORT_SYMBOL_GPL(nand_wait_ready);
  */
 static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 
 	timeo = jiffies + msecs_to_jiffies(timeo);
 	do {
@@ -605,7 +605,7 @@ static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo)
 static void nand_command(struct mtd_info *mtd, unsigned int command,
 			 int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 	int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
 
 	/* Write out the command to the device */
@@ -708,7 +708,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
 static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
 			    int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* Emulate NAND_CMD_READOOB */
 	if (command == NAND_CMD_READOOB) {
@@ -832,7 +832,7 @@ static void panic_nand_get_device(struct nand_chip *chip,
 static int
 nand_get_device(struct mtd_info *mtd, int new_state)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	spinlock_t *lock = &chip->controller->lock;
 	wait_queue_head_t *wq = &chip->controller->wq;
 	DECLARE_WAITQUEUE(wait, current);
@@ -952,7 +952,7 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
 {
 	int ret = 0;
 	int status, page;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* Submit address of first page to unlock */
 	page = ofs >> chip->page_shift;
@@ -987,7 +987,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	int ret = 0;
 	int chipnr;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
 			__func__, (unsigned long long)ofs, len);
@@ -1050,7 +1050,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	int ret = 0;
 	int chipnr, status, page;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
 			__func__, (unsigned long long)ofs, len);
@@ -1426,6 +1426,16 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
 
 		stat = chip->ecc.correct(mtd, p,
 			&chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]);
+		if (stat == -EBADMSG &&
+		    (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {
+			/* check for empty pages with bitflips */
+			stat = nand_check_erased_ecc_chunk(p, chip->ecc.size,
+						&chip->buffers->ecccode[i],
+						chip->ecc.bytes,
+						NULL, 0,
+						chip->ecc.strength);
+		}
+
 		if (stat < 0) {
 			mtd->ecc_stats.failed++;
 		} else {
@@ -1475,6 +1485,15 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 		int stat;
 
 		stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
+		if (stat == -EBADMSG &&
+		    (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {
+			/* check for empty pages with bitflips */
+			stat = nand_check_erased_ecc_chunk(p, eccsize,
+						&ecc_code[i], eccbytes,
+						NULL, 0,
+						chip->ecc.strength);
+		}
+
 		if (stat < 0) {
 			mtd->ecc_stats.failed++;
 		} else {
@@ -1527,6 +1546,15 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
 		chip->ecc.calculate(mtd, p, &ecc_calc[i]);
 
 		stat = chip->ecc.correct(mtd, p, &ecc_code[i], NULL);
+		if (stat == -EBADMSG &&
+		    (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {
+			/* check for empty pages with bitflips */
+			stat = nand_check_erased_ecc_chunk(p, eccsize,
+						&ecc_code[i], eccbytes,
+						NULL, 0,
+						chip->ecc.strength);
+		}
+
 		if (stat < 0) {
 			mtd->ecc_stats.failed++;
 		} else {
@@ -1554,6 +1582,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 	int i, eccsize = chip->ecc.size;
 	int eccbytes = chip->ecc.bytes;
 	int eccsteps = chip->ecc.steps;
+	int eccpadbytes = eccbytes + chip->ecc.prepad + chip->ecc.postpad;
 	uint8_t *p = buf;
 	uint8_t *oob = chip->oob_poi;
 	unsigned int max_bitflips = 0;
@@ -1573,19 +1602,29 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 		chip->read_buf(mtd, oob, eccbytes);
 		stat = chip->ecc.correct(mtd, p, oob, NULL);
 
-		if (stat < 0) {
-			mtd->ecc_stats.failed++;
-		} else {
-			mtd->ecc_stats.corrected += stat;
-			max_bitflips = max_t(unsigned int, max_bitflips, stat);
-		}
-
 		oob += eccbytes;
 
 		if (chip->ecc.postpad) {
 			chip->read_buf(mtd, oob, chip->ecc.postpad);
 			oob += chip->ecc.postpad;
 		}
+
+		if (stat == -EBADMSG &&
+		    (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {
+			/* check for empty pages with bitflips */
+			stat = nand_check_erased_ecc_chunk(p, chip->ecc.size,
+							   oob - eccpadbytes,
+							   eccpadbytes,
+							   NULL, 0,
+							   chip->ecc.strength);
+		}
+
+		if (stat < 0) {
+			mtd->ecc_stats.failed++;
+		} else {
+			mtd->ecc_stats.corrected += stat;
+			max_bitflips = max_t(unsigned int, max_bitflips, stat);
+		}
 	}
 
 	/* Calculate remaining oob bytes */
@@ -1655,7 +1694,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
  */
 static int nand_setup_read_retry(struct mtd_info *mtd, int retry_mode)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	pr_debug("setting READ RETRY mode %d\n", retry_mode);
 
@@ -1680,7 +1719,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 			    struct mtd_oob_ops *ops)
 {
 	int chipnr, page, realpage, col, bytes, aligned, oob_required;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret = 0;
 	uint32_t readlen = ops->len;
 	uint32_t oobreadlen = ops->ooblen;
@@ -2024,7 +2063,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
 			    struct mtd_oob_ops *ops)
 {
 	int page, realpage, chipnr;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct mtd_ecc_stats stats;
 	int readlen = ops->ooblen;
 	int len;
@@ -2472,7 +2511,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
 			      struct mtd_oob_ops *ops)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/*
 	 * Initialise to all 0xFF, to avoid the possibility of left over OOB
@@ -2532,7 +2571,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops)
 {
 	int chipnr, realpage, page, blockmask, column;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint32_t writelen = ops->len;
 
 	uint32_t oobwritelen = ops->ooblen;
@@ -2662,7 +2701,7 @@ err_out:
 static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 			    size_t *retlen, const uint8_t *buf)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct mtd_oob_ops ops;
 	int ret;
 
@@ -2722,7 +2761,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops)
 {
 	int chipnr, page, status, len;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	pr_debug("%s: to = 0x%08x, len = %i\n",
 			 __func__, (unsigned int)to, (int)ops->ooblen);
@@ -2847,7 +2886,7 @@ out:
  */
 static int single_erase(struct mtd_info *mtd, int page)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	/* Send commands to erase a block */
 	chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
 	chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
@@ -2879,7 +2918,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 		    int allowbbt)
 {
 	int page, status, pages_per_block, ret, chipnr;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	loff_t len;
 
 	pr_debug("%s: start = 0x%012llx, len = %llu\n",
@@ -3094,7 +3133,7 @@ static int nand_suspend(struct mtd_info *mtd)
  */
 static void nand_resume(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (chip->state == FL_PM_SUSPENDED)
 		nand_release_device(mtd);
@@ -3266,7 +3305,7 @@ ext_out:
 
 static int nand_setup_read_retry_micron(struct mtd_info *mtd, int retry_mode)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint8_t feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode};
 
 	return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY,
@@ -3937,11 +3976,14 @@ ident_done:
 	return type;
 }
 
-static int nand_dt_init(struct mtd_info *mtd, struct nand_chip *chip,
-			struct device_node *dn)
+static int nand_dt_init(struct nand_chip *chip)
 {
+	struct device_node *dn = nand_get_flash_node(chip);
 	int ecc_mode, ecc_strength, ecc_step;
 
+	if (!dn)
+		return 0;
+
 	if (of_get_nand_bus_width(dn) == 16)
 		chip->options |= NAND_BUSWIDTH_16;
 
@@ -3985,15 +4027,16 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 		    struct nand_flash_dev *table)
 {
 	int i, nand_maf_id, nand_dev_id;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_flash_dev *type;
 	int ret;
 
-	if (chip->flash_node) {
-		ret = nand_dt_init(mtd, chip, chip->flash_node);
-		if (ret)
-			return ret;
-	}
+	ret = nand_dt_init(chip);
+	if (ret)
+		return ret;
+
+	if (!mtd->name && mtd->dev.parent)
+		mtd->name = dev_name(mtd->dev.parent);
 
 	/* Set the default functions */
 	nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16);
@@ -4053,7 +4096,7 @@ EXPORT_SYMBOL(nand_scan_ident);
  */
 static bool nand_ecc_strength_good(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	int corr, ds_corr;
 
@@ -4082,7 +4125,7 @@ static bool nand_ecc_strength_good(struct mtd_info *mtd)
 int nand_scan_tail(struct mtd_info *mtd)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	struct nand_buffers *nbuf;
 
@@ -4166,7 +4209,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 			ecc->write_oob = nand_write_oob_std;
 		if (!ecc->read_subpage)
 			ecc->read_subpage = nand_read_subpage;
-		if (!ecc->write_subpage)
+		if (!ecc->write_subpage && ecc->hwctl && ecc->calculate)
 			ecc->write_subpage = nand_write_subpage_hwecc;
 
 	case NAND_ECC_HW_SYNDROME:
@@ -4426,7 +4469,7 @@ EXPORT_SYMBOL(nand_scan);
  */
 void nand_release(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (chip->ecc.mode == NAND_ECC_SOFT_BCH)
 		nand_bch_free((struct nand_bch_control *)chip->ecc.priv);
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index b1d4f813aedc..4b6a7085b442 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -172,7 +172,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
 		struct nand_bbt_descr *td, int offs)
 {
 	int res, ret = 0, i, j, act = 0;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	size_t retlen, len, totlen;
 	loff_t from;
 	int bits = td->options & NAND_BBT_NRBITS_MSK;
@@ -263,7 +263,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
  */
 static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int res = 0, i;
 
 	if (td->options & NAND_BBT_PERCHIP) {
@@ -388,7 +388,7 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
 static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
 			  struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	/* Read the primary version, if available */
 	if (td->options & NAND_BBT_VERSION) {
@@ -454,7 +454,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 	struct nand_bbt_descr *bd, int chip)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, numblocks, numpages;
 	int startblock;
 	loff_t from;
@@ -523,7 +523,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, chips;
 	int startblock, block, dir;
 	int scanlen = mtd->writesize + mtd->oobsize;
@@ -618,7 +618,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
 		     int chipsel)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	struct erase_info einfo;
 	int i, res, chip = 0;
 	int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
@@ -819,7 +819,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	return create_bbt(mtd, this->buffers->databuf, bd, -1);
 }
@@ -838,7 +838,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
 static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
 {
 	int i, chips, writeops, create, chipsel, res, res2;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	struct nand_bbt_descr *td = this->bbt_td;
 	struct nand_bbt_descr *md = this->bbt_md;
 	struct nand_bbt_descr *rd, *rd2;
@@ -962,7 +962,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
  */
 static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, j, chips, block, nrblocks, update;
 	uint8_t oldval;
 
@@ -1022,7 +1022,7 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
  */
 static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u32 pattern_len;
 	u32 bits;
 	u32 table_size;
@@ -1074,7 +1074,7 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
  */
 static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int len, res;
 	uint8_t *buf;
 	struct nand_bbt_descr *td = this->bbt_td;
@@ -1147,7 +1147,7 @@ err:
  */
 static int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int len, res = 0;
 	int chip, chipsel;
 	uint8_t *buf;
@@ -1281,7 +1281,7 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
  */
 int nand_default_bbt(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int ret;
 
 	/* Is a flash based bad block table requested? */
@@ -1317,7 +1317,7 @@ int nand_default_bbt(struct mtd_info *mtd)
  */
 int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block;
 
 	block = (int)(offs >> this->bbt_erase_shift);
@@ -1332,7 +1332,7 @@ int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
  */
 int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block, res;
 
 	block = (int)(offs >> this->bbt_erase_shift);
@@ -1359,7 +1359,7 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
  */
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block, ret = 0;
 
 	block = (int)(offs >> this->bbt_erase_shift);
diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c
index 3803e0bba23b..a87c1b628dfc 100644
--- a/drivers/mtd/nand/nand_bch.c
+++ b/drivers/mtd/nand/nand_bch.c
@@ -52,7 +52,7 @@ struct nand_bch_control {
 int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 			   unsigned char *code)
 {
-	const struct nand_chip *chip = mtd->priv;
+	const struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int i;
 
@@ -79,7 +79,7 @@ EXPORT_SYMBOL(nand_bch_calculate_ecc);
 int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
 			  unsigned char *read_ecc, unsigned char *calc_ecc)
 {
-	const struct nand_chip *chip = mtd->priv;
+	const struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int *errloc = nbc->errloc;
 	int i, count;
@@ -98,7 +98,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
 		}
 	} else if (count < 0) {
 		printk(KERN_ERR "ecc unrecoverable error\n");
-		count = -1;
+		count = -EBADMSG;
 	}
 	return count;
 }
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index 97c4c0216c90..d1770b066396 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -424,7 +424,7 @@ int nand_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 		       unsigned char *code)
 {
 	__nand_calculate_ecc(buf,
-			((struct nand_chip *)mtd->priv)->ecc.size, code);
+			mtd_to_nand(mtd)->ecc.size, code);
 
 	return 0;
 }
@@ -507,7 +507,7 @@ int __nand_correct_data(unsigned char *buf,
 		return 1;	/* error in ECC data; no action needed */
 
 	pr_err("%s: uncorrectable ECC error\n", __func__);
-	return -1;
+	return -EBADMSG;
 }
 EXPORT_SYMBOL(__nand_correct_data);
 
@@ -524,7 +524,7 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf,
 		      unsigned char *read_ecc, unsigned char *calc_ecc)
 {
 	return __nand_correct_data(buf, read_ecc, calc_ecc,
-				   ((struct nand_chip *)mtd->priv)->ecc.size);
+				   mtd_to_nand(mtd)->ecc.size);
 }
 EXPORT_SYMBOL(nand_correct_data);
 
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index b16d70aafd9e..1fd519503bb1 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -666,8 +666,8 @@ static char *get_partition_name(int i)
  */
 static int init_nandsim(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct nandsim   *ns   = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim   *ns   = nand_get_controller_data(chip);
 	int i, ret = 0;
 	uint64_t remains;
 	uint64_t next_offset;
@@ -1908,7 +1908,8 @@ static void switch_state(struct nandsim *ns)
 
 static u_char ns_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 	u_char outb = 0x00;
 
 	/* Sanity and correctness checks */
@@ -1969,7 +1970,8 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd)
 
 static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 {
-	struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Sanity and correctness checks */
 	if (!ns->lines.ce) {
@@ -2123,7 +2125,8 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 
 static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask)
 {
-	struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 
 	ns->lines.cle = bitmask & NAND_CLE ? 1 : 0;
 	ns->lines.ale = bitmask & NAND_ALE ? 1 : 0;
@@ -2141,7 +2144,7 @@ static int ns_device_ready(struct mtd_info *mtd)
 
 static uint16_t ns_nand_read_word(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	NS_DBG("read_word\n");
 
@@ -2150,7 +2153,8 @@ static uint16_t ns_nand_read_word(struct mtd_info *mtd)
 
 static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Check that chip is expecting data input */
 	if (!(ns->state & STATE_DATAIN_MASK)) {
@@ -2177,7 +2181,8 @@ static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
 static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 
 	/* Sanity and correctness checks */
 	if (!ns->lines.ce) {
@@ -2198,7 +2203,7 @@ static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 		int i;
 
 		for (i = 0; i < len; i++)
-			buf[i] = ((struct nand_chip *)mtd->priv)->read_byte(mtd);
+			buf[i] = mtd_to_nand(mtd)->read_byte(mtd);
 
 		return;
 	}
@@ -2236,16 +2241,15 @@ static int __init ns_init_module(void)
 	}
 
 	/* Allocate and initialize mtd_info, nand_chip and nandsim structures */
-	nsmtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
-				+ sizeof(struct nandsim), GFP_KERNEL);
-	if (!nsmtd) {
+	chip = kzalloc(sizeof(struct nand_chip) + sizeof(struct nandsim),
+		       GFP_KERNEL);
+	if (!chip) {
 		NS_ERR("unable to allocate core structures.\n");
 		return -ENOMEM;
 	}
-	chip        = (struct nand_chip *)(nsmtd + 1);
-        nsmtd->priv = (void *)chip;
+	nsmtd       = nand_to_mtd(chip);
 	nand        = (struct nandsim *)(chip + 1);
-	chip->priv  = (void *)nand;
+	nand_set_controller_data(chip, (void *)nand);
 
 	/*
 	 * Register simulator's callbacks.
@@ -2392,7 +2396,7 @@ err_exit:
 	for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i)
 		kfree(nand->partitions[i].name);
 error:
-	kfree(nsmtd);
+	kfree(chip);
 	free_lists();
 
 	return retval;
@@ -2405,7 +2409,8 @@ module_init(ns_init_module);
  */
 static void __exit ns_cleanup_module(void)
 {
-	struct nandsim *ns = ((struct nand_chip *)nsmtd->priv)->priv;
+	struct nand_chip *chip = mtd_to_nand(nsmtd);
+	struct nandsim *ns = nand_get_controller_data(chip);
 	int i;
 
 	nandsim_debugfs_remove(ns);
@@ -2413,7 +2418,7 @@ static void __exit ns_cleanup_module(void)
 	nand_release(nsmtd); /* Unregister driver */
 	for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i)
 		kfree(ns->partitions[i].name);
-	kfree(nsmtd);        /* Free other structures */
+	kfree(mtd_to_nand(nsmtd));        /* Free other structures */
 	free_lists();
 }
 
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 4f0d62f9d22c..218c789ca7ab 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -37,7 +37,6 @@
 struct ndfc_controller {
 	struct platform_device *ofdev;
 	void __iomem *ndfcbase;
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	int chip_select;
 	struct nand_hw_control ndfc_control;
@@ -48,8 +47,8 @@ static struct ndfc_controller ndfc_ctrl[NDFC_MAX_CS];
 static void ndfc_select_chip(struct mtd_info *mtd, int chip)
 {
 	uint32_t ccr;
-	struct nand_chip *nchip = mtd->priv;
-	struct ndfc_controller *ndfc = nchip->priv;
+	struct nand_chip *nchip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(nchip);
 
 	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
 	if (chip >= 0) {
@@ -62,8 +61,8 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip)
 
 static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
@@ -76,8 +75,8 @@ static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static int ndfc_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY;
 }
@@ -85,8 +84,8 @@ static int ndfc_ready(struct mtd_info *mtd)
 static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
 {
 	uint32_t ccr;
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 
 	ccr = in_be32(ndfc->ndfcbase + NDFC_CCR);
 	ccr |= NDFC_CCR_RESET_ECC;
@@ -97,8 +96,8 @@ static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode)
 static int ndfc_calculate_ecc(struct mtd_info *mtd,
 			      const u_char *dat, u_char *ecc_code)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t ecc;
 	uint8_t *p = (uint8_t *)&ecc;
 
@@ -121,8 +120,8 @@ static int ndfc_calculate_ecc(struct mtd_info *mtd,
  */
 static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t *p = (uint32_t *) buf;
 
 	for(;len > 0; len -= 4)
@@ -131,8 +130,8 @@ static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct ndfc_controller *ndfc = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct ndfc_controller *ndfc = nand_get_controller_data(chip);
 	uint32_t *p = (uint32_t *) buf;
 
 	for(;len > 0; len -= 4)
@@ -147,7 +146,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
 {
 	struct device_node *flash_np;
 	struct nand_chip *chip = &ndfc->chip;
-	struct mtd_part_parser_data ppdata;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	int ret;
 
 	chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
@@ -166,33 +165,32 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
 	chip->ecc.size = 256;
 	chip->ecc.bytes = 3;
 	chip->ecc.strength = 1;
-	chip->priv = ndfc;
+	nand_set_controller_data(chip, ndfc);
 
-	ndfc->mtd.priv = chip;
-	ndfc->mtd.dev.parent = &ndfc->ofdev->dev;
+	mtd->dev.parent = &ndfc->ofdev->dev;
 
 	flash_np = of_get_next_child(node, NULL);
 	if (!flash_np)
 		return -ENODEV;
+	nand_set_flash_node(chip, flash_np);
 
-	ppdata.of_node = flash_np;
-	ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s",
-			dev_name(&ndfc->ofdev->dev), flash_np->name);
-	if (!ndfc->mtd.name) {
+	mtd->name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev),
+			      flash_np->name);
+	if (!mtd->name) {
 		ret = -ENOMEM;
 		goto err;
 	}
 
-	ret = nand_scan(&ndfc->mtd, 1);
+	ret = nand_scan(mtd, 1);
 	if (ret)
 		goto err;
 
-	ret = mtd_device_parse_register(&ndfc->mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 
 err:
 	of_node_put(flash_np);
 	if (ret)
-		kfree(ndfc->mtd.name);
+		kfree(mtd->name);
 	return ret;
 }
 
@@ -259,9 +257,10 @@ static int ndfc_probe(struct platform_device *ofdev)
 static int ndfc_remove(struct platform_device *ofdev)
 {
 	struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
+	struct mtd_info *mtd = nand_to_mtd(&ndfc->chip);
 
-	nand_release(&ndfc->mtd);
-	kfree(ndfc->mtd.name);
+	nand_release(mtd);
+	kfree(mtd->name);
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index f0687f71fbd8..220ddfcf29f5 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -55,13 +55,17 @@
 	__raw_writel((val), (dev)->reg + REG_SMADDR)
 
 struct nuc900_nand {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	void __iomem *reg;
 	struct clk *clk;
 	spinlock_t lock;
 };
 
+static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct nuc900_nand, chip);
+}
+
 static const struct mtd_partition partitions[] = {
 	{
 	 .name = "NAND FS 0",
@@ -78,9 +82,7 @@ static const struct mtd_partition partitions[] = {
 static unsigned char nuc900_nand_read_byte(struct mtd_info *mtd)
 {
 	unsigned char ret;
-	struct nuc900_nand *nand;
-
-	nand = container_of(mtd, struct nuc900_nand, mtd);
+	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 
 	ret = (unsigned char)read_data_reg(nand);
 
@@ -91,9 +93,7 @@ static void nuc900_nand_read_buf(struct mtd_info *mtd,
 				 unsigned char *buf, int len)
 {
 	int i;
-	struct nuc900_nand *nand;
-
-	nand = container_of(mtd, struct nuc900_nand, mtd);
+	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 
 	for (i = 0; i < len; i++)
 		buf[i] = (unsigned char)read_data_reg(nand);
@@ -103,9 +103,7 @@ static void nuc900_nand_write_buf(struct mtd_info *mtd,
 				  const unsigned char *buf, int len)
 {
 	int i;
-	struct nuc900_nand *nand;
-
-	nand = container_of(mtd, struct nuc900_nand, mtd);
+	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 
 	for (i = 0; i < len; i++)
 		write_data_reg(nand, buf[i]);
@@ -124,11 +122,9 @@ static int nuc900_check_rb(struct nuc900_nand *nand)
 
 static int nuc900_nand_devready(struct mtd_info *mtd)
 {
-	struct nuc900_nand *nand;
+	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 	int ready;
 
-	nand = container_of(mtd, struct nuc900_nand, mtd);
-
 	ready = (nuc900_check_rb(nand)) ? 1 : 0;
 	return ready;
 }
@@ -136,10 +132,8 @@ static int nuc900_nand_devready(struct mtd_info *mtd)
 static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command,
 				   int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd->priv;
-	struct nuc900_nand *nand;
-
-	nand = container_of(mtd, struct nuc900_nand, mtd);
+	register struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nuc900_nand *nand = mtd_to_nuc900(mtd);
 
 	if (command == NAND_CMD_READOOB) {
 		column += mtd->writesize;
@@ -241,6 +235,7 @@ static int nuc900_nand_probe(struct platform_device *pdev)
 {
 	struct nuc900_nand *nuc900_nand;
 	struct nand_chip *chip;
+	struct mtd_info *mtd;
 	struct resource *res;
 
 	nuc900_nand = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_nand),
@@ -248,9 +243,9 @@ static int nuc900_nand_probe(struct platform_device *pdev)
 	if (!nuc900_nand)
 		return -ENOMEM;
 	chip = &(nuc900_nand->chip);
+	mtd = nand_to_mtd(chip);
 
-	nuc900_nand->mtd.priv	= chip;
-	nuc900_nand->mtd.dev.parent = &pdev->dev;
+	mtd->dev.parent		= &pdev->dev;
 	spin_lock_init(&nuc900_nand->lock);
 
 	nuc900_nand->clk = devm_clk_get(&pdev->dev, NULL);
@@ -274,11 +269,10 @@ static int nuc900_nand_probe(struct platform_device *pdev)
 
 	nuc900_nand_enable(nuc900_nand);
 
-	if (nand_scan(&(nuc900_nand->mtd), 1))
+	if (nand_scan(mtd, 1))
 		return -ENXIO;
 
-	mtd_device_register(&(nuc900_nand->mtd), partitions,
-			    ARRAY_SIZE(partitions));
+	mtd_device_register(mtd, partitions, ARRAY_SIZE(partitions));
 
 	platform_set_drvdata(pdev, nuc900_nand);
 
@@ -289,7 +283,7 @@ static int nuc900_nand_remove(struct platform_device *pdev)
 {
 	struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);
 
-	nand_release(&nuc900_nand->mtd);
+	nand_release(nand_to_mtd(&nuc900_nand->chip));
 	clk_disable(nuc900_nand->clk);
 
 	return 0;
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 93f664cd1c90..c553f78ab83f 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -152,7 +152,6 @@ static struct nand_hw_control omap_gpmc_controller = {
 
 struct omap_nand_info {
 	struct omap_nand_platform_data	*pdata;
-	struct mtd_info			mtd;
 	struct nand_chip		nand;
 	struct platform_device		*pdev;
 
@@ -177,6 +176,11 @@ struct omap_nand_info {
 	struct device_node		*of_node;
 };
 
+static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct omap_nand_info, nand);
+}
+
 /**
  * omap_prefetch_enable - configures and starts prefetch transfer
  * @cs: cs (chip select) number
@@ -247,8 +251,7 @@ static int omap_prefetch_reset(int cs, struct omap_nand_info *info)
  */
 static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct omap_nand_info *info = container_of(mtd,
-					struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 
 	if (cmd != NAND_CMD_NONE) {
 		if (ctrl & NAND_CLE)
@@ -270,7 +273,7 @@ static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
  */
 static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 
 	ioread8_rep(nand->IO_ADDR_R, buf, len);
 }
@@ -283,8 +286,7 @@ static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len)
  */
 static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	u_char *p = (u_char *)buf;
 	u32	status = 0;
 
@@ -306,7 +308,7 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
  */
 static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 
 	ioread16_rep(nand->IO_ADDR_R, buf, len / 2);
 }
@@ -319,8 +321,7 @@ static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
  */
 static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	u16 *p = (u16 *) buf;
 	u32	status = 0;
 	/* FIXME try bursts of writesw() or DMA ... */
@@ -344,8 +345,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
  */
 static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	uint32_t r_count = 0;
 	int ret = 0;
 	u32 *p = (u32 *)buf;
@@ -392,8 +392,7 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len)
 static void omap_write_buf_pref(struct mtd_info *mtd,
 					const u_char *buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	uint32_t w_count = 0;
 	int i = 0, ret = 0;
 	u16 *p = (u16 *)buf;
@@ -458,8 +457,7 @@ static void omap_nand_dma_callback(void *data)
 static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
 					unsigned int len, int is_write)
 {
-	struct omap_nand_info *info = container_of(mtd,
-					struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	struct dma_async_tx_descriptor *tx;
 	enum dma_data_direction dir = is_write ? DMA_TO_DEVICE :
 							DMA_FROM_DEVICE;
@@ -623,8 +621,7 @@ done:
  */
 static void omap_read_buf_irq_pref(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	int ret = 0;
 
 	if (len <= mtd->oobsize) {
@@ -671,8 +668,7 @@ out_copy:
 static void omap_write_buf_irq_pref(struct mtd_info *mtd,
 					const u_char *buf, int len)
 {
-	struct omap_nand_info *info = container_of(mtd,
-						struct omap_nand_info, mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	int ret = 0;
 	unsigned long tim, limit;
 	u32 val;
@@ -830,12 +826,12 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 	case 1:
 		/* Uncorrectable error */
 		pr_debug("ECC UNCORRECTED_ERROR 1\n");
-		return -1;
+		return -EBADMSG;
 
 	case 11:
 		/* UN-Correctable error */
 		pr_debug("ECC UNCORRECTED_ERROR B\n");
-		return -1;
+		return -EBADMSG;
 
 	case 12:
 		/* Correctable error */
@@ -865,7 +861,7 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 				return 0;
 		}
 		pr_debug("UNCORRECTED_ERROR default\n");
-		return -1;
+		return -EBADMSG;
 	}
 }
 
@@ -886,8 +882,7 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 static int omap_correct_data(struct mtd_info *mtd, u_char *dat,
 				u_char *read_ecc, u_char *calc_ecc)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	int blockCnt = 0, i = 0, ret = 0;
 	int stat = 0;
 
@@ -928,8 +923,7 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat,
 static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 				u_char *ecc_code)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	u32 val;
 
 	val = readl(info->reg.gpmc_ecc_config);
@@ -953,9 +947,8 @@ static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
  */
 static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct omap_nand_info *info = mtd_to_omap(mtd);
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0;
 	u32 val;
 
@@ -1001,9 +994,8 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode)
  */
 static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct nand_chip *this = mtd->priv;
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	unsigned long timeo = jiffies;
 	int status, state = this->state;
 
@@ -1031,8 +1023,7 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip)
 static int omap_dev_ready(struct mtd_info *mtd)
 {
 	unsigned int val = 0;
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 
 	val = readl(info->reg.gpmc_status);
 
@@ -1058,10 +1049,9 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode)
 {
 	unsigned int bch_type;
 	unsigned int dev_width, nsectors;
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	enum omap_ecc ecc_opt = info->ecc_opt;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 val, wr_mode;
 	unsigned int ecc_size1, ecc_size0;
 
@@ -1162,8 +1152,7 @@ static u8  bch8_polynomial[] = {0xef, 0x51, 0x2e, 0x09, 0xed, 0x93, 0x9a, 0xc2,
 static int __maybe_unused omap_calculate_ecc_bch(struct mtd_info *mtd,
 					const u_char *dat, u_char *ecc_calc)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	int eccbytes	= info->nand.ecc.bytes;
 	struct gpmc_nand_regs	*gpmc_regs = &info->reg;
 	u8 *ecc_code;
@@ -1334,8 +1323,7 @@ static int erased_sector_bitflips(u_char *data, u_char *oob,
 static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 				u_char *read_ecc, u_char *calc_ecc)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-			mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	struct nand_ecc_ctrl *ecc = &info->nand.ecc;
 	int eccsteps = info->nand.ecc.steps;
 	int i , j, stat = 0;
@@ -1663,7 +1651,6 @@ static int omap_nand_probe(struct platform_device *pdev)
 	unsigned			sig;
 	unsigned			oob_index;
 	struct resource			*res;
-	struct mtd_part_parser_data	ppdata = {};
 
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata == NULL) {
@@ -1683,11 +1670,11 @@ static int omap_nand_probe(struct platform_device *pdev)
 	info->reg		= pdata->reg;
 	info->of_node		= pdata->of_node;
 	info->ecc_opt		= pdata->ecc_opt;
-	mtd			= &info->mtd;
-	mtd->priv		= &info->nand;
-	mtd->dev.parent		= &pdev->dev;
 	nand_chip		= &info->nand;
+	mtd			= nand_to_mtd(nand_chip);
+	mtd->dev.parent		= &pdev->dev;
 	nand_chip->ecc.priv	= NULL;
+	nand_set_flash_node(nand_chip, pdata->of_node);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	nand_chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res);
@@ -1909,7 +1896,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 				ecclayout->eccpos[ecclayout->eccbytes - 1] + 1;
 
 		err = elm_config(info->elm_dev, BCH4_ECC,
-				 info->mtd.writesize / nand_chip->ecc.size,
+				 mtd->writesize / nand_chip->ecc.size,
 				 nand_chip->ecc.size, nand_chip->ecc.bytes);
 		if (err < 0)
 			goto return_error;
@@ -1963,7 +1950,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.write_page	= omap_write_page_bch;
 
 		err = elm_config(info->elm_dev, BCH8_ECC,
-				 info->mtd.writesize / nand_chip->ecc.size,
+				 mtd->writesize / nand_chip->ecc.size,
 				 nand_chip->ecc.size, nand_chip->ecc.bytes);
 		if (err < 0)
 			goto return_error;
@@ -1993,7 +1980,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.write_page	= omap_write_page_bch;
 
 		err = elm_config(info->elm_dev, BCH16_ECC,
-				 info->mtd.writesize / nand_chip->ecc.size,
+				 mtd->writesize / nand_chip->ecc.size,
 				 nand_chip->ecc.size, nand_chip->ecc.bytes);
 		if (err < 0)
 			goto return_error;
@@ -2037,9 +2024,7 @@ scan_tail:
 		goto return_error;
 	}
 
-	ppdata.of_node = pdata->of_node;
-	mtd_device_parse_register(mtd, NULL, &ppdata, pdata->parts,
-				  pdata->nr_parts);
+	mtd_device_register(mtd, pdata->parts, pdata->nr_parts);
 
 	platform_set_drvdata(pdev, mtd);
 
@@ -2058,9 +2043,8 @@ return_error:
 static int omap_nand_remove(struct platform_device *pdev)
 {
 	struct mtd_info *mtd = platform_get_drvdata(pdev);
-	struct nand_chip *nand_chip = mtd->priv;
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-							mtd);
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct omap_nand_info *info = mtd_to_omap(mtd);
 	if (nand_chip->ecc.priv) {
 		nand_bch_free(nand_chip->ecc.priv);
 		nand_chip->ecc.priv = NULL;
diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c
index 235ec7992b4c..a3f32f939cc1 100644
--- a/drivers/mtd/nand/omap_elm.c
+++ b/drivers/mtd/nand/omap_elm.c
@@ -414,7 +414,7 @@ static int elm_probe(struct platform_device *pdev)
 	ret = devm_request_irq(&pdev->dev, irq->start, elm_isr, 0,
 			pdev->name, info);
 	if (ret) {
-		dev_err(&pdev->dev, "failure requesting irq %i\n", irq->start);
+		dev_err(&pdev->dev, "failure requesting %pr\n", irq);
 		return ret;
 	}
 
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index ee83749fb1d3..d4614bfbfed6 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -25,8 +25,8 @@
 
 static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *nc = mtd->priv;
-	struct orion_nand_data *board = nc->priv;
+	struct nand_chip *nc = mtd_to_nand(mtd);
+	struct orion_nand_data *board = nand_get_controller_data(nc);
 	u32 offs;
 
 	if (cmd == NAND_CMD_NONE)
@@ -47,7 +47,7 @@ static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl
 
 static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	void __iomem *io_base = chip->IO_ADDR_R;
 	uint64_t *buf64;
 	int i = 0;
@@ -76,7 +76,6 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static int __init orion_nand_probe(struct platform_device *pdev)
 {
 	struct mtd_info *mtd;
-	struct mtd_part_parser_data ppdata = {};
 	struct nand_chip *nc;
 	struct orion_nand_data *board;
 	struct resource *res;
@@ -86,11 +85,11 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 	u32 val = 0;
 
 	nc = devm_kzalloc(&pdev->dev,
-			sizeof(struct nand_chip) + sizeof(struct mtd_info),
+			sizeof(struct nand_chip),
 			GFP_KERNEL);
 	if (!nc)
 		return -ENOMEM;
-	mtd = (struct mtd_info *)(nc + 1);
+	mtd = nand_to_mtd(nc);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	io_base = devm_ioremap_resource(&pdev->dev, res);
@@ -123,10 +122,10 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 		board = dev_get_platdata(&pdev->dev);
 	}
 
-	mtd->priv = nc;
 	mtd->dev.parent = &pdev->dev;
 
-	nc->priv = board;
+	nand_set_controller_data(nc, board);
+	nand_set_flash_node(nc, pdev->dev.of_node);
 	nc->IO_ADDR_R = nc->IO_ADDR_W = io_base;
 	nc->cmd_ctrl = orion_nand_cmd_ctrl;
 	nc->read_buf = orion_nand_read_buf;
@@ -161,9 +160,7 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 	}
 
 	mtd->name = "orion_nand";
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata,
-			board->parts, board->nr_parts);
+	ret = mtd_device_register(mtd, board->parts, board->nr_parts);
 	if (ret) {
 		nand_release(mtd);
 		goto no_dev;
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 83cf021b9651..3ab53ca53cca 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -45,7 +45,7 @@ static const char driver_name[] = "pasemi-nand";
 
 static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	while (len > 0x800) {
 		memcpy_fromio(buf, chip->IO_ADDR_R, 0x800);
@@ -57,7 +57,7 @@ static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	while (len > 0x800) {
 		memcpy_toio(chip->IO_ADDR_R, buf, 0x800);
@@ -70,7 +70,7 @@ static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void pasemi_hwcontrol(struct mtd_info *mtd, int cmd,
 			     unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;
@@ -110,20 +110,17 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
 	pr_debug("pasemi_nand at %pR\n", &res);
 
 	/* Allocate memory for MTD device structure and private data */
-	pasemi_nand_mtd = kzalloc(sizeof(struct mtd_info) +
-				  sizeof(struct nand_chip), GFP_KERNEL);
-	if (!pasemi_nand_mtd) {
+	chip = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+	if (!chip) {
 		printk(KERN_WARNING
 		       "Unable to allocate PASEMI NAND MTD device structure\n");
 		err = -ENOMEM;
 		goto out;
 	}
 
-	/* Get pointer to private data */
-	chip = (struct nand_chip *)&pasemi_nand_mtd[1];
+	pasemi_nand_mtd = nand_to_mtd(chip);
 
 	/* Link the private data with the MTD structure */
-	pasemi_nand_mtd->priv = chip;
 	pasemi_nand_mtd->dev.parent = &ofdev->dev;
 
 	chip->IO_ADDR_R = of_iomap(np, 0);
@@ -180,7 +177,7 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
  out_ior:
 	iounmap(chip->IO_ADDR_R);
  out_mtd:
-	kfree(pasemi_nand_mtd);
+	kfree(chip);
  out:
 	return err;
 }
@@ -192,7 +189,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev)
 	if (!pasemi_nand_mtd)
 		return 0;
 
-	chip = pasemi_nand_mtd->priv;
+	chip = mtd_to_nand(pasemi_nand_mtd);
 
 	/* Release resources, unregister device */
 	nand_release(pasemi_nand_mtd);
@@ -202,7 +199,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev)
 	iounmap(chip->IO_ADDR_R);
 
 	/* Free the MTD device structure */
-	kfree(pasemi_nand_mtd);
+	kfree(chip);
 
 	pasemi_nand_mtd = NULL;
 
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 65b9dbbe6d6a..a0e26dea1424 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -20,7 +20,6 @@
 
 struct plat_nand_data {
 	struct nand_chip	chip;
-	struct mtd_info		mtd;
 	void __iomem		*io_base;
 };
 
@@ -30,8 +29,8 @@ struct plat_nand_data {
 static int plat_nand_probe(struct platform_device *pdev)
 {
 	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
-	struct mtd_part_parser_data ppdata;
 	struct plat_nand_data *data;
+	struct mtd_info *mtd;
 	struct resource *res;
 	const char **part_types;
 	int err = 0;
@@ -57,9 +56,9 @@ static int plat_nand_probe(struct platform_device *pdev)
 	if (IS_ERR(data->io_base))
 		return PTR_ERR(data->io_base);
 
-	data->chip.priv = &data;
-	data->mtd.priv = &data->chip;
-	data->mtd.dev.parent = &pdev->dev;
+	nand_set_flash_node(&data->chip, pdev->dev.of_node);
+	mtd = nand_to_mtd(&data->chip);
+	mtd->dev.parent = &pdev->dev;
 
 	data->chip.IO_ADDR_R = data->io_base;
 	data->chip.IO_ADDR_W = data->io_base;
@@ -87,22 +86,21 @@ static int plat_nand_probe(struct platform_device *pdev)
 	}
 
 	/* Scan to find existence of the device */
-	if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
+	if (nand_scan(mtd, pdata->chip.nr_chips)) {
 		err = -ENXIO;
 		goto out;
 	}
 
 	part_types = pdata->chip.part_probe_types;
 
-	ppdata.of_node = pdev->dev.of_node;
-	err = mtd_device_parse_register(&data->mtd, part_types, &ppdata,
+	err = mtd_device_parse_register(mtd, part_types, NULL,
 					pdata->chip.partitions,
 					pdata->chip.nr_partitions);
 
 	if (!err)
 		return err;
 
-	nand_release(&data->mtd);
+	nand_release(mtd);
 out:
 	if (pdata->ctrl.remove)
 		pdata->ctrl.remove(pdev);
@@ -117,7 +115,7 @@ static int plat_nand_remove(struct platform_device *pdev)
 	struct plat_nand_data *data = platform_get_drvdata(pdev);
 	struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
 
-	nand_release(&data->mtd);
+	nand_release(nand_to_mtd(&data->chip));
 	if (pdata->ctrl.remove)
 		pdata->ctrl.remove(pdev);
 
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index e453ae9a17fa..86fc245dc71a 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -30,11 +30,6 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_mtd.h>
-
-#if defined(CONFIG_ARM) && (defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP))
-#define ARCH_HAS_DMA
-#endif
-
 #include <linux/platform_data/mtd-nand-pxa3xx.h>
 
 #define	CHIP_DELAY_TIMEOUT	msecs_to_jiffies(200)
@@ -172,7 +167,6 @@ enum pxa3xx_nand_variant {
 
 struct pxa3xx_nand_host {
 	struct nand_chip	chip;
-	struct mtd_info         *mtd;
 	void			*info_data;
 
 	/* page size of attached chip */
@@ -455,14 +449,15 @@ static int pxa3xx_nand_init_timings_compat(struct pxa3xx_nand_host *host,
 	struct nand_chip *chip = &host->chip;
 	struct pxa3xx_nand_info *info = host->info_data;
 	const struct pxa3xx_nand_flash *f = NULL;
+	struct mtd_info *mtd = nand_to_mtd(&host->chip);
 	int i, id, ntypes;
 
 	ntypes = ARRAY_SIZE(builtin_flash_types);
 
-	chip->cmdfunc(host->mtd, NAND_CMD_READID, 0x00, -1);
+	chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
 
-	id = chip->read_byte(host->mtd);
-	id |= chip->read_byte(host->mtd) << 0x8;
+	id = chip->read_byte(mtd);
+	id |= chip->read_byte(mtd) << 0x8;
 
 	for (i = 0; i < ntypes; i++) {
 		f = &builtin_flash_types[i];
@@ -895,7 +890,7 @@ static void set_command_address(struct pxa3xx_nand_info *info,
 static void prepare_start_command(struct pxa3xx_nand_info *info, int command)
 {
 	struct pxa3xx_nand_host *host = info->host[info->cs];
-	struct mtd_info *mtd = host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->chip);
 
 	/* reset data and oob column point to handle data */
 	info->buf_start		= 0;
@@ -948,7 +943,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
 	struct mtd_info *mtd;
 
 	host = info->host[info->cs];
-	mtd = host->mtd;
+	mtd = nand_to_mtd(&host->chip);
 	addr_cycle = 0;
 	exec_cmd = 1;
 
@@ -1118,7 +1113,8 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
 static void nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			 int column, int page_addr)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd;
 
@@ -1166,7 +1162,8 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd,
 				  const unsigned command,
 				  int column, int page_addr)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd, ext_cmd_type;
 
@@ -1286,7 +1283,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 		struct nand_chip *chip, uint8_t *buf, int oob_required,
 		int page)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 
 	chip->read_buf(mtd, buf, mtd->writesize);
@@ -1312,7 +1309,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 
 static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	char retval = 0xFF;
 
@@ -1325,7 +1323,8 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 
 static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	u16 retval = 0xFFFF;
 
@@ -1338,7 +1337,8 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 
 static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 
@@ -1349,7 +1349,8 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void pxa3xx_nand_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 
@@ -1364,7 +1365,8 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip)
 
 static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 
 	if (info->need_wait) {
@@ -1387,37 +1389,53 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 	return NAND_STATUS_READY;
 }
 
-static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info)
+static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info)
 {
+	struct pxa3xx_nand_host *host = info->host[info->cs];
 	struct platform_device *pdev = info->pdev;
 	struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct pxa3xx_nand_host *host = info->host[info->cs];
-	struct mtd_info *mtd = host->mtd;
-	struct nand_chip *chip = mtd->priv;
+	const struct nand_sdr_timings *timings;
 
-	/* configure default flash values */
+	/* Configure default flash values */
+	info->chunk_size = PAGE_CHUNK_SIZE;
 	info->reg_ndcr = 0x0; /* enable all interrupts */
 	info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0;
 	info->reg_ndcr |= NDCR_RD_ID_CNT(READ_ID_BYTES);
-	info->reg_ndcr |= NDCR_SPARE_EN; /* enable spare by default */
+	info->reg_ndcr |= NDCR_SPARE_EN;
+
+	/* use the common timing to make a try */
+	timings = onfi_async_timing_mode_to_sdr_timings(0);
+	if (IS_ERR(timings))
+		return PTR_ERR(timings);
+
+	pxa3xx_nand_set_sdr_timing(host, timings);
+	return 0;
+}
+
+static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info)
+{
+	struct pxa3xx_nand_host *host = info->host[info->cs];
+	struct nand_chip *chip = &host->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
+
 	info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;
 	info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0;
 	info->reg_ndcr |= (mtd->writesize == 2048) ? NDCR_PAGE_SZ : 0;
-
-	return 0;
 }
 
-static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
+static void pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
 {
+	struct platform_device *pdev = info->pdev;
+	struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	uint32_t ndcr = nand_readl(info, NDCR);
 
 	/* Set an initial chunk size */
 	info->chunk_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512;
 	info->reg_ndcr = ndcr &
 		~(NDCR_INT_MASK | NDCR_ND_ARB_EN | NFCV1_NDCR_ARB_CNTL);
+	info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0;
 	info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
 	info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
-	return 0;
 }
 
 static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
@@ -1483,32 +1501,6 @@ static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
 	kfree(info->data_buff);
 }
 
-static int pxa3xx_nand_sensing(struct pxa3xx_nand_host *host)
-{
-	struct pxa3xx_nand_info *info = host->info_data;
-	struct mtd_info *mtd;
-	struct nand_chip *chip;
-	const struct nand_sdr_timings *timings;
-	int ret;
-
-	mtd = info->host[info->cs]->mtd;
-	chip = mtd->priv;
-
-	/* use the common timing to make a try */
-	timings = onfi_async_timing_mode_to_sdr_timings(0);
-	if (IS_ERR(timings))
-		return PTR_ERR(timings);
-
-	pxa3xx_nand_set_sdr_timing(host, timings);
-
-	chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
-	ret = chip->waitfunc(mtd, chip);
-	if (ret & NAND_STATUS_FAIL)
-		return -ENODEV;
-
-	return 0;
-}
-
 static int pxa_ecc_init(struct pxa3xx_nand_info *info,
 			struct nand_ecc_ctrl *ecc,
 			int strength, int ecc_stepsize, int page_size)
@@ -1580,34 +1572,22 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info,
 
 static int pxa3xx_nand_scan(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	struct platform_device *pdev = info->pdev;
 	struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct nand_chip *chip = mtd->priv;
 	int ret;
 	uint16_t ecc_strength, ecc_step;
 
-	if (pdata->keep_config && !pxa3xx_nand_detect_config(info))
-		goto KEEP_CONFIG;
-
-	/* Set a default chunk size */
-	info->chunk_size = 512;
-
-	ret = pxa3xx_nand_config_flash(info);
-	if (ret)
-		return ret;
-
-	ret = pxa3xx_nand_sensing(host);
-	if (ret) {
-		dev_info(&info->pdev->dev, "There is no chip on cs %d!\n",
-			 info->cs);
-
-		return ret;
+	if (pdata->keep_config) {
+		pxa3xx_nand_detect_config(info);
+	} else {
+		ret = pxa3xx_nand_config_ident(info);
+		if (ret)
+			return ret;
 	}
 
-KEEP_CONFIG:
-	info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0;
 	if (info->reg_ndcr & NDCR_DWIDTH_M)
 		chip->options |= NAND_BUSWIDTH_16;
 
@@ -1692,11 +1672,16 @@ KEEP_CONFIG:
 		host->row_addr_cycles = 3;
 	else
 		host->row_addr_cycles = 2;
+
+	if (!pdata->keep_config)
+		pxa3xx_nand_config_tail(info);
+
 	return nand_scan_tail(mtd);
 }
 
 static int alloc_nand_resource(struct platform_device *pdev)
 {
+	struct device_node *np = pdev->dev.of_node;
 	struct pxa3xx_nand_platform_data *pdata;
 	struct pxa3xx_nand_info *info;
 	struct pxa3xx_nand_host *host;
@@ -1708,24 +1693,27 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata->num_cs <= 0)
 		return -ENODEV;
-	info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) +
-			    sizeof(*host)) * pdata->num_cs, GFP_KERNEL);
+	info = devm_kzalloc(&pdev->dev,
+			    sizeof(*info) + sizeof(*host) * pdata->num_cs,
+			    GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
 	info->pdev = pdev;
 	info->variant = pxa3xx_nand_get_variant(pdev);
 	for (cs = 0; cs < pdata->num_cs; cs++) {
-		mtd = (void *)&info[1] + (sizeof(*mtd) + sizeof(*host)) * cs;
-		chip = (struct nand_chip *)(&mtd[1]);
-		host = (struct pxa3xx_nand_host *)chip;
+		host = (void *)&info[1] + sizeof(*host) * cs;
+		chip = &host->chip;
+		nand_set_controller_data(chip, host);
+		mtd = nand_to_mtd(chip);
 		info->host[cs] = host;
-		host->mtd = mtd;
 		host->cs = cs;
 		host->info_data = info;
-		mtd->priv = host;
 		mtd->dev.parent = &pdev->dev;
+		/* FIXME: all chips use the same device tree partitions */
+		nand_set_flash_node(chip, np);
 
+		nand_set_controller_data(chip, host);
 		chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;
 		chip->ecc.write_page	= pxa3xx_nand_write_page_hwecc;
 		chip->controller        = &info->controller;
@@ -1845,7 +1833,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
 	clk_disable_unprepare(info->clk);
 
 	for (cs = 0; cs < pdata->num_cs; cs++)
-		nand_release(info->host[cs]->mtd);
+		nand_release(nand_to_mtd(&info->host[cs]->chip));
 	return 0;
 }
 
@@ -1886,7 +1874,6 @@ static int pxa3xx_nand_probe_dt(struct platform_device *pdev)
 static int pxa3xx_nand_probe(struct platform_device *pdev)
 {
 	struct pxa3xx_nand_platform_data *pdata;
-	struct mtd_part_parser_data ppdata = {};
 	struct pxa3xx_nand_info *info;
 	int ret, cs, probe_success, dma_available;
 
@@ -1917,7 +1904,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 	info = platform_get_drvdata(pdev);
 	probe_success = 0;
 	for (cs = 0; cs < pdata->num_cs; cs++) {
-		struct mtd_info *mtd = info->host[cs]->mtd;
+		struct mtd_info *mtd = nand_to_mtd(&info->host[cs]->chip);
 
 		/*
 		 * The mtd name matches the one used in 'mtdparts' kernel
@@ -1933,10 +1920,8 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 			continue;
 		}
 
-		ppdata.of_node = pdev->dev.of_node;
-		ret = mtd_device_parse_register(mtd, NULL,
-						&ppdata, pdata->parts[cs],
-						pdata->nr_parts[cs]);
+		ret = mtd_device_register(mtd, pdata->parts[cs],
+					  pdata->nr_parts[cs]);
 		if (!ret)
 			probe_success = 1;
 	}
@@ -1959,12 +1944,18 @@ static int pxa3xx_nand_suspend(struct device *dev)
 		return -EAGAIN;
 	}
 
+	clk_disable(info->clk);
 	return 0;
 }
 
 static int pxa3xx_nand_resume(struct device *dev)
 {
 	struct pxa3xx_nand_info *info = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_enable(info->clk);
+	if (ret < 0)
+		return ret;
 
 	/* We don't want to handle interrupt without calling mtd routine */
 	disable_int(info, NDCR_INT_MASK);
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index d8bb2be327f1..fc9287af4614 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -64,8 +64,8 @@ static inline void r852_write_reg_dword(struct r852_device *dev,
 /* returns pointer to our private structure */
 static inline struct r852_device *r852_get_dev(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	return chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	return nand_get_controller_data(chip);
 }
 
 
@@ -361,7 +361,7 @@ static void r852_cmdctl(struct mtd_info *mtd, int dat, unsigned int ctrl)
  */
 static int r852_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct r852_device *dev = chip->priv;
+	struct r852_device *dev = nand_get_controller_data(chip);
 
 	unsigned long timeout;
 	int status;
@@ -477,7 +477,7 @@ static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
 
 	if (dev->dma_error) {
 		dev->dma_error = 0;
-		return -1;
+		return -EIO;
 	}
 
 	r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS);
@@ -491,7 +491,7 @@ static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
 		/* ecc uncorrectable error */
 		if (ecc_status & R852_ECC_FAIL) {
 			dbg("ecc: unrecoverable error, in half %d", i);
-			error = -1;
+			error = -EBADMSG;
 			goto exit;
 		}
 
@@ -634,25 +634,21 @@ static void r852_update_media_status(struct r852_device *dev)
  */
 static int r852_register_nand_device(struct r852_device *dev)
 {
-	dev->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
-
-	if (!dev->mtd)
-		goto error1;
+	struct mtd_info *mtd = nand_to_mtd(dev->chip);
 
 	WARN_ON(dev->card_registred);
 
-	dev->mtd->priv = dev->chip;
-	dev->mtd->dev.parent = &dev->pci_dev->dev;
+	mtd->dev.parent = &dev->pci_dev->dev;
 
 	if (dev->readonly)
 		dev->chip->options |= NAND_ROM;
 
 	r852_engine_enable(dev);
 
-	if (sm_register_device(dev->mtd, dev->sm))
-		goto error2;
+	if (sm_register_device(mtd, dev->sm))
+		goto error1;
 
-	if (device_create_file(&dev->mtd->dev, &dev_attr_media_type)) {
+	if (device_create_file(&mtd->dev, &dev_attr_media_type)) {
 		message("can't create media type sysfs attribute");
 		goto error3;
 	}
@@ -660,9 +656,7 @@ static int r852_register_nand_device(struct r852_device *dev)
 	dev->card_registred = 1;
 	return 0;
 error3:
-	nand_release(dev->mtd);
-error2:
-	kfree(dev->mtd);
+	nand_release(mtd);
 error1:
 	/* Force card redetect */
 	dev->card_detected = 0;
@@ -675,15 +669,15 @@ error1:
 
 static void r852_unregister_nand_device(struct r852_device *dev)
 {
+	struct mtd_info *mtd = nand_to_mtd(dev->chip);
+
 	if (!dev->card_registred)
 		return;
 
-	device_remove_file(&dev->mtd->dev, &dev_attr_media_type);
-	nand_release(dev->mtd);
+	device_remove_file(&mtd->dev, &dev_attr_media_type);
+	nand_release(mtd);
 	r852_engine_disable(dev);
 	dev->card_registred = 0;
-	kfree(dev->mtd);
-	dev->mtd = NULL;
 }
 
 /* Card state updater */
@@ -885,7 +879,7 @@ static int  r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
 	if (!dev)
 		goto error5;
 
-	chip->priv = dev;
+	nand_set_controller_data(chip, dev);
 	dev->chip = chip;
 	dev->pci_dev = pci_dev;
 	pci_set_drvdata(pci_dev, dev);
@@ -980,7 +974,6 @@ static void r852_remove(struct pci_dev *pci_dev)
 
 	/* Stop interrupts */
 	r852_disable_irqs(dev);
-	synchronize_irq(dev->irq);
 	free_irq(dev->irq, dev);
 
 	/* Cleanup */
@@ -1032,6 +1025,7 @@ static int r852_suspend(struct device *device)
 static int r852_resume(struct device *device)
 {
 	struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
+	struct mtd_info *mtd = nand_to_mtd(dev->chip);
 
 	r852_disable_irqs(dev);
 	r852_card_update_present(dev);
@@ -1051,9 +1045,9 @@ static int r852_resume(struct device *device)
 	/* Otherwise, initialize the card */
 	if (dev->card_registred) {
 		r852_engine_enable(dev);
-		dev->chip->select_chip(dev->mtd, 0);
-		dev->chip->cmdfunc(dev->mtd, NAND_CMD_RESET, -1, -1);
-		dev->chip->select_chip(dev->mtd, -1);
+		dev->chip->select_chip(mtd, 0);
+		dev->chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+		dev->chip->select_chip(mtd, -1);
 	}
 
 	/* Program card detection IRQ */
diff --git a/drivers/mtd/nand/r852.h b/drivers/mtd/nand/r852.h
index e6a21d9d22c6..d042ddb71a8b 100644
--- a/drivers/mtd/nand/r852.h
+++ b/drivers/mtd/nand/r852.h
@@ -108,7 +108,6 @@
 
 struct r852_device {
 	void __iomem *mmio;		/* mmio */
-	struct mtd_info *mtd;		/* mtd backpointer */
 	struct nand_chip *chip;		/* nand chip backpointer */
 	struct pci_dev *pci_dev;	/* pci backpointer */
 
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 05105cadd0db..01ac74fa3b95 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -104,7 +104,6 @@ struct s3c2410_nand_info;
  * @scan_res: The result from calling nand_scan_ident().
 */
 struct s3c2410_nand_mtd {
-	struct mtd_info			mtd;
 	struct nand_chip		chip;
 	struct s3c2410_nand_set		*set;
 	struct s3c2410_nand_info	*info;
@@ -168,7 +167,8 @@ struct s3c2410_nand_info {
 
 static struct s3c2410_nand_mtd *s3c2410_nand_mtd_toours(struct mtd_info *mtd)
 {
-	return container_of(mtd, struct s3c2410_nand_mtd, mtd);
+	return container_of(mtd_to_nand(mtd), struct s3c2410_nand_mtd,
+			    chip);
 }
 
 static struct s3c2410_nand_info *s3c2410_nand_mtd_toinfo(struct mtd_info *mtd)
@@ -382,10 +382,10 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip)
 {
 	struct s3c2410_nand_info *info;
 	struct s3c2410_nand_mtd *nmtd;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	unsigned long cur;
 
-	nmtd = this->priv;
+	nmtd = nand_get_controller_data(this);
 	info = nmtd->info;
 
 	if (chip != -1)
@@ -634,7 +634,7 @@ static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
 static void s3c2410_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	readsb(this->IO_ADDR_R, buf, len);
 }
 
@@ -656,7 +656,7 @@ static void s3c2440_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 static void s3c2410_nand_write_buf(struct mtd_info *mtd, const u_char *buf,
 				   int len)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	writesb(this->IO_ADDR_W, buf, len);
 }
 
@@ -745,7 +745,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
 
 		for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) {
 			pr_debug("releasing mtd %d (%p)\n", mtdno, ptr);
-			nand_release(&ptr->mtd);
+			nand_release(nand_to_mtd(&ptr->chip));
 		}
 	}
 
@@ -762,9 +762,11 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
 				      struct s3c2410_nand_set *set)
 {
 	if (set) {
-		mtd->mtd.name = set->name;
+		struct mtd_info *mtdinfo = nand_to_mtd(&mtd->chip);
 
-		return mtd_device_parse_register(&mtd->mtd, NULL, NULL,
+		mtdinfo->name = set->name;
+
+		return mtd_device_parse_register(mtdinfo, NULL, NULL,
 					 set->partitions, set->nr_partitions);
 	}
 
@@ -792,7 +794,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
 	chip->read_buf     = s3c2410_nand_read_buf;
 	chip->select_chip  = s3c2410_nand_select_chip;
 	chip->chip_delay   = 50;
-	chip->priv	   = nmtd;
+	nand_set_controller_data(chip, nmtd);
 	chip->options	   = set->options;
 	chip->controller   = &info->controller;
 
@@ -831,7 +833,6 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
 	chip->IO_ADDR_R = chip->IO_ADDR_W;
 
 	nmtd->info	   = info;
-	nmtd->mtd.priv	   = chip;
 	nmtd->set	   = set;
 
 #ifdef CONFIG_MTD_NAND_S3C2410_HWECC
@@ -1012,19 +1013,21 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
 	nmtd = info->mtds;
 
 	for (setno = 0; setno < nr_sets; setno++, nmtd++) {
+		struct mtd_info *mtd = nand_to_mtd(&nmtd->chip);
+
 		pr_debug("initialising set %d (%p, info %p)\n",
 			 setno, nmtd, info);
 
-		nmtd->mtd.dev.parent = &pdev->dev;
+		mtd->dev.parent = &pdev->dev;
 		s3c2410_nand_init_chip(info, nmtd, sets);
 
-		nmtd->scan_res = nand_scan_ident(&nmtd->mtd,
+		nmtd->scan_res = nand_scan_ident(mtd,
 						 (sets) ? sets->nr_chips : 1,
 						 NULL);
 
 		if (nmtd->scan_res == 0) {
 			s3c2410_nand_update_chip(info, nmtd);
-			nand_scan_tail(&nmtd->mtd);
+			nand_scan_tail(mtd);
 			s3c2410_nand_add_partition(info, nmtd, sets);
 		}
 
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index bcba1a924c75..4814402902f9 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -160,7 +160,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl)
 
 	memset(&cfg, 0, sizeof(cfg));
 	cfg.direction = DMA_MEM_TO_DEV;
-	cfg.dst_addr = (dma_addr_t)FLDTFIFO(flctl);
+	cfg.dst_addr = flctl->fifo;
 	cfg.src_addr = 0;
 	ret = dmaengine_slave_config(flctl->chan_fifo0_tx, &cfg);
 	if (ret < 0)
@@ -176,7 +176,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl)
 
 	cfg.direction = DMA_DEV_TO_MEM;
 	cfg.dst_addr = 0;
-	cfg.src_addr = (dma_addr_t)FLDTFIFO(flctl);
+	cfg.src_addr = flctl->fifo;
 	ret = dmaengine_slave_config(flctl->chan_fifo0_rx, &cfg);
 	if (ret < 0)
 		goto err;
@@ -607,13 +607,13 @@ static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr)
 		case FL_REPAIRABLE:
 			dev_info(&flctl->pdev->dev,
 				"applied ecc on page 0x%x", page_addr);
-			flctl->mtd.ecc_stats.corrected++;
+			mtd->ecc_stats.corrected++;
 			break;
 		case FL_ERROR:
 			dev_warn(&flctl->pdev->dev,
 				"page 0x%x contains corrupted data\n",
 				page_addr);
-			flctl->mtd.ecc_stats.failed++;
+			mtd->ecc_stats.failed++;
 			break;
 		default:
 			;
@@ -1086,7 +1086,6 @@ static int flctl_probe(struct platform_device *pdev)
 	struct sh_flctl_platform_data *pdata;
 	int ret;
 	int irq;
-	struct mtd_part_parser_data ppdata = {};
 
 	flctl = devm_kzalloc(&pdev->dev, sizeof(struct sh_flctl), GFP_KERNEL);
 	if (!flctl)
@@ -1096,6 +1095,7 @@ static int flctl_probe(struct platform_device *pdev)
 	flctl->reg = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(flctl->reg))
 		return PTR_ERR(flctl->reg);
+	flctl->fifo = res->start + 0x24; /* FLDTFIFO */
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -1121,9 +1121,9 @@ static int flctl_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, flctl);
-	flctl_mtd = &flctl->mtd;
 	nand = &flctl->chip;
-	flctl_mtd->priv = nand;
+	flctl_mtd = nand_to_mtd(nand);
+	nand_set_flash_node(nand, pdev->dev.of_node);
 	flctl_mtd->dev.parent = &pdev->dev;
 	flctl->pdev = pdev;
 	flctl->hwecc = pdata->has_hwecc;
@@ -1163,9 +1163,7 @@ static int flctl_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_chip;
 
-	ppdata.of_node = pdev->dev.of_node;
-	ret = mtd_device_parse_register(flctl_mtd, NULL, &ppdata, pdata->parts,
-			pdata->nr_parts);
+	ret = mtd_device_register(flctl_mtd, pdata->parts, pdata->nr_parts);
 
 	return 0;
 
@@ -1180,7 +1178,7 @@ static int flctl_remove(struct platform_device *pdev)
 	struct sh_flctl *flctl = platform_get_drvdata(pdev);
 
 	flctl_release_dma(flctl);
-	nand_release(&flctl->mtd);
+	nand_release(nand_to_mtd(&flctl->chip));
 	pm_runtime_disable(&pdev->dev);
 
 	return 0;
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 082b6009736d..b7d1b55a160b 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -29,13 +29,15 @@
 #include <asm/mach-types.h>
 
 struct sharpsl_nand {
-	struct mtd_info		mtd;
 	struct nand_chip	chip;
 
 	void __iomem		*io;
 };
 
-#define mtd_to_sharpsl(_mtd)	container_of(_mtd, struct sharpsl_nand, mtd)
+static inline struct sharpsl_nand *mtd_to_sharpsl(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct sharpsl_nand, chip);
+}
 
 /* register offset */
 #define ECCLPLB		0x00	/* line parity 7 - 0 bit */
@@ -66,7 +68,7 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 				   unsigned int ctrl)
 {
 	struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		unsigned char bits = ctrl & 0x07;
@@ -109,6 +111,7 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat,
 static int sharpsl_nand_probe(struct platform_device *pdev)
 {
 	struct nand_chip *this;
+	struct mtd_info *mtd;
 	struct resource *r;
 	int err = 0;
 	struct sharpsl_nand *sharpsl;
@@ -143,8 +146,8 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
 	this = (struct nand_chip *)(&sharpsl->chip);
 
 	/* Link the private data with the MTD structure */
-	sharpsl->mtd.priv = this;
-	sharpsl->mtd.dev.parent = &pdev->dev;
+	mtd = nand_to_mtd(this);
+	mtd->dev.parent = &pdev->dev;
 
 	platform_set_drvdata(pdev, sharpsl);
 
@@ -173,14 +176,14 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
 	this->ecc.correct = nand_correct_data;
 
 	/* Scan to find existence of the device */
-	err = nand_scan(&sharpsl->mtd, 1);
+	err = nand_scan(mtd, 1);
 	if (err)
 		goto err_scan;
 
 	/* Register the partitions */
-	sharpsl->mtd.name = "sharpsl-nand";
+	mtd->name = "sharpsl-nand";
 
-	err = mtd_device_parse_register(&sharpsl->mtd, NULL, NULL,
+	err = mtd_device_parse_register(mtd, NULL, NULL,
 					data->partitions, data->nr_partitions);
 	if (err)
 		goto err_add;
@@ -189,7 +192,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
 	return 0;
 
 err_add:
-	nand_release(&sharpsl->mtd);
+	nand_release(mtd);
 
 err_scan:
 	iounmap(sharpsl->io);
@@ -207,7 +210,7 @@ static int sharpsl_nand_remove(struct platform_device *pdev)
 	struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);
 
 	/* Release resources, unregister device */
-	nand_release(&sharpsl->mtd);
+	nand_release(nand_to_mtd(&sharpsl->chip));
 
 	iounmap(sharpsl->io);
 
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index e06b5e5d3287..c514740f9a83 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -102,7 +102,7 @@ static struct nand_flash_dev nand_xd_flash_ids[] = {
 
 int sm_register_device(struct mtd_info *mtd, int smartmedia)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret;
 
 	chip->options |= NAND_SKIP_BBTSCAN;
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index b94f53427f0f..e3305f9dd6fb 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -30,7 +30,6 @@
 
 struct socrates_nand_host {
 	struct nand_chip	nand_chip;
-	struct mtd_info		mtd;
 	void __iomem		*io_base;
 	struct device		*dev;
 };
@@ -45,8 +44,8 @@ static void socrates_nand_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
-	struct socrates_nand_host *host = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct socrates_nand_host *host = nand_get_controller_data(this);
 
 	for (i = 0; i < len; i++) {
 		out_be32(host->io_base, FPGA_NAND_ENABLE |
@@ -64,8 +63,8 @@ static void socrates_nand_write_buf(struct mtd_info *mtd,
 static void socrates_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
-	struct socrates_nand_host *host = this->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
+	struct socrates_nand_host *host = nand_get_controller_data(this);
 	uint32_t val;
 
 	val = FPGA_NAND_ENABLE | FPGA_NAND_CMD_READ;
@@ -105,8 +104,8 @@ static uint16_t socrates_nand_read_word(struct mtd_info *mtd)
 static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
 		unsigned int ctrl)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct socrates_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
 	uint32_t val;
 
 	if (cmd == NAND_CMD_NONE)
@@ -130,8 +129,8 @@ static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
  */
 static int socrates_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand_chip = mtd->priv;
-	struct socrates_nand_host *host = nand_chip->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
+	struct socrates_nand_host *host = nand_get_controller_data(nand_chip);
 
 	if (in_be32(host->io_base) & FPGA_NAND_BUSY)
 		return 0; /* busy */
@@ -147,7 +146,6 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 	struct mtd_info *mtd;
 	struct nand_chip *nand_chip;
 	int res;
-	struct mtd_part_parser_data ppdata;
 
 	/* Allocate memory for the device structure (and zero it) */
 	host = devm_kzalloc(&ofdev->dev, sizeof(*host), GFP_KERNEL);
@@ -160,15 +158,15 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 		return -EIO;
 	}
 
-	mtd = &host->mtd;
 	nand_chip = &host->nand_chip;
+	mtd = nand_to_mtd(nand_chip);
 	host->dev = &ofdev->dev;
 
-	nand_chip->priv = host;		/* link the private data structures */
-	mtd->priv = nand_chip;
+	/* link the private data structures */
+	nand_set_controller_data(nand_chip, host);
+	nand_set_flash_node(nand_chip, ofdev->dev.of_node);
 	mtd->name = "socrates_nand";
 	mtd->dev.parent = &ofdev->dev;
-	ppdata.of_node = ofdev->dev.of_node;
 
 	/*should never be accessed directly */
 	nand_chip->IO_ADDR_R = (void *)0xdeadbeef;
@@ -200,7 +198,7 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 		goto out;
 	}
 
-	res = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	res = mtd_device_register(mtd, NULL, 0);
 	if (!res)
 		return res;
 
@@ -217,7 +215,7 @@ out:
 static int socrates_nand_remove(struct platform_device *ofdev)
 {
 	struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev);
-	struct mtd_info *mtd = &host->mtd;
+	struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
 
 	nand_release(mtd);
 
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 824711845c44..51e10a35fe08 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -234,7 +234,6 @@ struct sunxi_nand_hw_ecc {
 struct sunxi_nand_chip {
 	struct list_head node;
 	struct nand_chip nand;
-	struct mtd_info mtd;
 	unsigned long clk_rate;
 	u32 timing_cfg;
 	u32 timing_ctl;
@@ -350,7 +349,7 @@ static int sunxi_nfc_rst(struct sunxi_nfc *nfc)
 
 static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_rb *rb;
@@ -388,7 +387,7 @@ static int sunxi_nfc_dev_ready(struct mtd_info *mtd)
 
 static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_chip_sel *sel;
@@ -433,7 +432,7 @@ static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip)
 
 static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -466,7 +465,7 @@ static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				int len)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -507,7 +506,7 @@ static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd)
 static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat,
 			       unsigned int ctrl)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	int ret;
@@ -541,7 +540,7 @@ static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat,
 
 static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct sunxi_nand_hw_ecc *data = nand->ecc.priv;
 	u32 ecc_ctl;
@@ -556,7 +555,7 @@ static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd)
 
 static void sunxi_nfc_hw_ecc_disable(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 
 	writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_ECC_EN,
@@ -577,7 +576,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd,
 				       int *cur_off,
 				       unsigned int *max_bitflips)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	u32 status;
@@ -638,7 +637,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd,
 static void sunxi_nfc_hw_ecc_read_extra_oob(struct mtd_info *mtd,
 					    u8 *oob, int *cur_off)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int offset = ((ecc->bytes + 4) * ecc->steps);
 	int len = mtd->oobsize - offset;
@@ -665,7 +664,7 @@ static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd,
 					const u8 *oob, int oob_off,
 					int *cur_off)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int ret;
@@ -702,7 +701,7 @@ static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd,
 static void sunxi_nfc_hw_ecc_write_extra_oob(struct mtd_info *mtd,
 					     u8 *oob, int *cur_off)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct nand_ecc_ctrl *ecc = &nand->ecc;
 	int offset = ((ecc->bytes + 4) * ecc->steps);
 	int len = mtd->oobsize - offset;
@@ -991,6 +990,7 @@ static int sunxi_nand_chip_set_timings(struct sunxi_nand_chip *chip,
 static int sunxi_nand_chip_init_timings(struct sunxi_nand_chip *chip,
 					struct device_node *np)
 {
+	struct mtd_info *mtd = nand_to_mtd(&chip->nand);
 	const struct nand_sdr_timings *timings;
 	int ret;
 	int mode;
@@ -1008,12 +1008,11 @@ static int sunxi_nand_chip_init_timings(struct sunxi_nand_chip *chip,
 
 		feature[0] = mode;
 		for (i = 0; i < chip->nsels; i++) {
-			chip->nand.select_chip(&chip->mtd, i);
-			ret = chip->nand.onfi_set_features(&chip->mtd,
-						&chip->nand,
+			chip->nand.select_chip(mtd, i);
+			ret = chip->nand.onfi_set_features(mtd,	&chip->nand,
 						ONFI_FEATURE_ADDR_TIMING_MODE,
 						feature);
-			chip->nand.select_chip(&chip->mtd, -1);
+			chip->nand.select_chip(mtd, -1);
 			if (ret)
 				return ret;
 		}
@@ -1031,7 +1030,7 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd,
 					      struct device_node *np)
 {
 	static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 };
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand);
 	struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller);
 	struct sunxi_nand_hw_ecc *data;
@@ -1189,7 +1188,7 @@ static void sunxi_nand_ecc_cleanup(struct nand_ecc_ctrl *ecc)
 static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc,
 			       struct device_node *np)
 {
-	struct nand_chip *nand = mtd->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
 	int ret;
 
 	if (!ecc->size) {
@@ -1232,7 +1231,6 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
 {
 	const struct nand_sdr_timings *timings;
 	struct sunxi_nand_chip *chip;
-	struct mtd_part_parser_data ppdata;
 	struct mtd_info *mtd;
 	struct nand_chip *nand;
 	int nsels;
@@ -1330,16 +1328,15 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
 	 * in the DT.
 	 */
 	nand->ecc.mode = NAND_ECC_HW;
-	nand->flash_node = np;
+	nand_set_flash_node(nand, np);
 	nand->select_chip = sunxi_nfc_select_chip;
 	nand->cmd_ctrl = sunxi_nfc_cmd_ctrl;
 	nand->read_buf = sunxi_nfc_read_buf;
 	nand->write_buf = sunxi_nfc_write_buf;
 	nand->read_byte = sunxi_nfc_read_byte;
 
-	mtd = &chip->mtd;
+	mtd = nand_to_mtd(nand);
 	mtd->dev.parent = dev;
-	mtd->priv = nand;
 
 	ret = nand_scan_ident(mtd, nsels, NULL);
 	if (ret)
@@ -1366,8 +1363,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
 		return ret;
 	}
 
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(dev, "failed to register mtd device: %d\n", ret);
 		nand_release(mtd);
@@ -1393,8 +1389,10 @@ static int sunxi_nand_chips_init(struct device *dev, struct sunxi_nfc *nfc)
 
 	for_each_child_of_node(np, nand_np) {
 		ret = sunxi_nand_chip_init(dev, nfc, nand_np);
-		if (ret)
+		if (ret) {
+			of_node_put(nand_np);
 			return ret;
+		}
 	}
 
 	return 0;
@@ -1407,7 +1405,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc)
 	while (!list_empty(&nfc->chips)) {
 		chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip,
 					node);
-		nand_release(&chip->mtd);
+		nand_release(nand_to_mtd(&chip->nand));
 		sunxi_nand_ecc_cleanup(&chip->nand.ecc);
 		list_del(&chip->node);
 	}
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index befddf0776e4..08b30549ec0a 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -103,7 +103,6 @@
 /*--------------------------------------------------------------------------*/
 
 struct tmio_nand {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 
 	struct platform_device *dev;
@@ -119,7 +118,10 @@ struct tmio_nand {
 	unsigned read_good:1;
 };
 
-#define mtd_to_tmio(m)			container_of(m, struct tmio_nand, mtd)
+static inline struct tmio_nand *mtd_to_tmio(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct tmio_nand, chip);
+}
 
 
 /*--------------------------------------------------------------------------*/
@@ -128,7 +130,7 @@ static void tmio_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 				   unsigned int ctrl)
 {
 	struct tmio_nand *tmio = mtd_to_tmio(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		u8 mode;
@@ -378,9 +380,8 @@ static int tmio_probe(struct platform_device *dev)
 	tmio->dev = dev;
 
 	platform_set_drvdata(dev, tmio);
-	mtd = &tmio->mtd;
 	nand_chip = &tmio->chip;
-	mtd->priv = nand_chip;
+	mtd = nand_to_mtd(nand_chip);
 	mtd->name = "tmio-nand";
 	mtd->dev.parent = &dev->dev;
 
@@ -456,7 +457,7 @@ static int tmio_remove(struct platform_device *dev)
 {
 	struct tmio_nand *tmio = platform_get_drvdata(dev);
 
-	nand_release(&tmio->mtd);
+	nand_release(nand_to_mtd(&tmio->chip));
 	tmio_hw_stop(dev, tmio);
 	return 0;
 }
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index 8572519b8441..04d63f56baa4 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -63,7 +63,6 @@
 struct txx9ndfmc_priv {
 	struct platform_device *dev;
 	struct nand_chip chip;
-	struct mtd_info mtd;
 	int cs;
 	const char *mtdname;
 };
@@ -79,8 +78,8 @@ struct txx9ndfmc_drvdata {
 
 static struct platform_device *mtd_to_platdev(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct txx9ndfmc_priv *txx9_priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
 	return txx9_priv->dev;
 }
 
@@ -135,8 +134,8 @@ static void txx9ndfmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd,
 			       unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct txx9ndfmc_priv *txx9_priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip);
 	struct platform_device *dev = txx9_priv->dev;
 	struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
 
@@ -175,7 +174,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
 				   uint8_t *ecc_code)
 {
 	struct platform_device *dev = mtd_to_platdev(mtd);
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int eccbytes;
 	u32 mcr = txx9ndfmc_read(dev, TXX9_NDFMCR);
 
@@ -195,7 +194,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
 static int txx9ndfmc_correct_data(struct mtd_info *mtd, unsigned char *buf,
 		unsigned char *read_ecc, unsigned char *calc_ecc)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int eccsize;
 	int corrected = 0;
 	int stat;
@@ -257,7 +256,7 @@ static void txx9ndfmc_initialize(struct platform_device *dev)
 
 static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret;
 
 	ret = nand_scan_ident(mtd, 1, NULL);
@@ -322,11 +321,9 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
 		if (!txx9_priv)
 			continue;
 		chip = &txx9_priv->chip;
-		mtd = &txx9_priv->mtd;
+		mtd = nand_to_mtd(chip);
 		mtd->dev.parent = &dev->dev;
 
-		mtd->priv = chip;
-
 		chip->read_byte = txx9ndfmc_read_byte;
 		chip->read_buf = txx9ndfmc_read_buf;
 		chip->write_buf = txx9ndfmc_write_buf;
@@ -343,7 +340,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
 		chip->chip_delay = 100;
 		chip->controller = &drvdata->hw_control;
 
-		chip->priv = txx9_priv;
+		nand_set_controller_data(chip, txx9_priv);
 		txx9_priv->dev = dev;
 
 		if (plat->ch_mask != 1) {
@@ -391,8 +388,8 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev)
 
 		if (!mtd)
 			continue;
-		chip = mtd->priv;
-		txx9_priv = chip->priv;
+		chip = mtd_to_nand(mtd);
+		txx9_priv = nand_get_controller_data(chip);
 
 		nand_release(mtd);
 		kfree(txx9_priv->mtdname);
diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c
index 8805d6325579..034420f313d5 100644
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -156,7 +156,6 @@ enum vf610_nfc_variant {
 };
 
 struct vf610_nfc {
-	struct mtd_info mtd;
 	struct nand_chip chip;
 	struct device *dev;
 	void __iomem *regs;
@@ -171,7 +170,10 @@ struct vf610_nfc {
 	u32 ecc_mode;
 };
 
-#define mtd_to_nfc(_mtd) container_of(_mtd, struct vf610_nfc, mtd)
+static inline struct vf610_nfc *mtd_to_nfc(struct mtd_info *mtd)
+{
+	return container_of(mtd_to_nand(mtd), struct vf610_nfc, chip);
+}
 
 static struct nand_ecclayout vf610_nfc_ecc45 = {
 	.eccbytes = 45,
@@ -674,10 +676,9 @@ static int vf610_nfc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	nfc->dev = &pdev->dev;
-	mtd = &nfc->mtd;
 	chip = &nfc->chip;
+	mtd = nand_to_mtd(chip);
 
-	mtd->priv = chip;
 	mtd->owner = THIS_MODULE;
 	mtd->dev.parent = nfc->dev;
 	mtd->name = DRV_NAME;
@@ -707,18 +708,18 @@ static int vf610_nfc_probe(struct platform_device *pdev)
 	for_each_available_child_of_node(nfc->dev->of_node, child) {
 		if (of_device_is_compatible(child, "fsl,vf610-nfc-nandcs")) {
 
-			if (chip->flash_node) {
+			if (nand_get_flash_node(chip)) {
 				dev_err(nfc->dev,
 					"Only one NAND chip supported!\n");
 				err = -EINVAL;
 				goto error;
 			}
 
-			chip->flash_node = child;
+			nand_set_flash_node(chip, child);
 		}
 	}
 
-	if (!chip->flash_node) {
+	if (!nand_get_flash_node(chip)) {
 		dev_err(nfc->dev, "NAND chip sub-node missing!\n");
 		err = -ENODEV;
 		goto err_clk;
@@ -811,14 +812,10 @@ static int vf610_nfc_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, mtd);
 
 	/* Register device in MTD */
-	return mtd_device_parse_register(mtd, NULL,
-		&(struct mtd_part_parser_data){
-			.of_node = chip->flash_node,
-		},
-		NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 
 error:
-	of_node_put(chip->flash_node);
+	of_node_put(nand_get_flash_node(chip));
 err_clk:
 	clk_disable_unprepare(nfc->clk);
 	return err;
diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
index 3b28db458ea0..0cf0ac07a8c2 100644
--- a/drivers/mtd/nand/xway_nand.c
+++ b/drivers/mtd/nand/xway_nand.c
@@ -89,7 +89,7 @@ static void xway_select_chip(struct mtd_info *mtd, int chip)
 
 static void xway_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	unsigned long nandaddr = (unsigned long) this->IO_ADDR_W;
 	unsigned long flags;
 
@@ -118,7 +118,7 @@ static int xway_dev_ready(struct mtd_info *mtd)
 
 static unsigned char xway_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	unsigned long nandaddr = (unsigned long) this->IO_ADDR_R;
 	unsigned long flags;
 	int ret;
diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c
index 9ed6038e47d2..ede407d6e106 100644
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -26,9 +26,10 @@ static bool node_has_compatible(struct device_node *pp)
 }
 
 static int parse_ofpart_partitions(struct mtd_info *master,
-				   struct mtd_partition **pparts,
+				   const struct mtd_partition **pparts,
 				   struct mtd_part_parser_data *data)
 {
+	struct mtd_partition *parts;
 	struct device_node *mtd_node;
 	struct device_node *ofpart_node;
 	const char *partname;
@@ -37,10 +38,8 @@ static int parse_ofpart_partitions(struct mtd_info *master,
 	bool dedicated = true;
 
 
-	if (!data)
-		return 0;
-
-	mtd_node = data->of_node;
+	/* Pull of_node from the master device node */
+	mtd_node = mtd_get_of_node(master);
 	if (!mtd_node)
 		return 0;
 
@@ -72,8 +71,8 @@ static int parse_ofpart_partitions(struct mtd_info *master,
 	if (nr_parts == 0)
 		return 0;
 
-	*pparts = kzalloc(nr_parts * sizeof(**pparts), GFP_KERNEL);
-	if (!*pparts)
+	parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+	if (!parts)
 		return -ENOMEM;
 
 	i = 0;
@@ -107,19 +106,19 @@ static int parse_ofpart_partitions(struct mtd_info *master,
 			goto ofpart_fail;
 		}
 
-		(*pparts)[i].offset = of_read_number(reg, a_cells);
-		(*pparts)[i].size = of_read_number(reg + a_cells, s_cells);
+		parts[i].offset = of_read_number(reg, a_cells);
+		parts[i].size = of_read_number(reg + a_cells, s_cells);
 
 		partname = of_get_property(pp, "label", &len);
 		if (!partname)
 			partname = of_get_property(pp, "name", &len);
-		(*pparts)[i].name = partname;
+		parts[i].name = partname;
 
 		if (of_get_property(pp, "read-only", &len))
-			(*pparts)[i].mask_flags |= MTD_WRITEABLE;
+			parts[i].mask_flags |= MTD_WRITEABLE;
 
 		if (of_get_property(pp, "lock", &len))
-			(*pparts)[i].mask_flags |= MTD_POWERUP_LOCK;
+			parts[i].mask_flags |= MTD_POWERUP_LOCK;
 
 		i++;
 	}
@@ -127,6 +126,7 @@ static int parse_ofpart_partitions(struct mtd_info *master,
 	if (!nr_parts)
 		goto ofpart_none;
 
+	*pparts = parts;
 	return nr_parts;
 
 ofpart_fail:
@@ -135,21 +135,20 @@ ofpart_fail:
 	ret = -EINVAL;
 ofpart_none:
 	of_node_put(pp);
-	kfree(*pparts);
-	*pparts = NULL;
+	kfree(parts);
 	return ret;
 }
 
 static struct mtd_part_parser ofpart_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = parse_ofpart_partitions,
 	.name = "ofpart",
 };
 
 static int parse_ofoldpart_partitions(struct mtd_info *master,
-				      struct mtd_partition **pparts,
+				      const struct mtd_partition **pparts,
 				      struct mtd_part_parser_data *data)
 {
+	struct mtd_partition *parts;
 	struct device_node *dp;
 	int i, plen, nr_parts;
 	const struct {
@@ -157,10 +156,8 @@ static int parse_ofoldpart_partitions(struct mtd_info *master,
 	} *part;
 	const char *names;
 
-	if (!data)
-		return 0;
-
-	dp = data->of_node;
+	/* Pull of_node from the master device node */
+	dp = mtd_get_of_node(master);
 	if (!dp)
 		return 0;
 
@@ -173,37 +170,37 @@ static int parse_ofoldpart_partitions(struct mtd_info *master,
 
 	nr_parts = plen / sizeof(part[0]);
 
-	*pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL);
-	if (!*pparts)
+	parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+	if (!parts)
 		return -ENOMEM;
 
 	names = of_get_property(dp, "partition-names", &plen);
 
 	for (i = 0; i < nr_parts; i++) {
-		(*pparts)[i].offset = be32_to_cpu(part->offset);
-		(*pparts)[i].size   = be32_to_cpu(part->len) & ~1;
+		parts[i].offset = be32_to_cpu(part->offset);
+		parts[i].size   = be32_to_cpu(part->len) & ~1;
 		/* bit 0 set signifies read only partition */
 		if (be32_to_cpu(part->len) & 1)
-			(*pparts)[i].mask_flags = MTD_WRITEABLE;
+			parts[i].mask_flags = MTD_WRITEABLE;
 
 		if (names && (plen > 0)) {
 			int len = strlen(names) + 1;
 
-			(*pparts)[i].name = names;
+			parts[i].name = names;
 			plen -= len;
 			names += len;
 		} else {
-			(*pparts)[i].name = "unnamed";
+			parts[i].name = "unnamed";
 		}
 
 		part++;
 	}
 
+	*pparts = parts;
 	return nr_parts;
 }
 
 static struct mtd_part_parser ofoldpart_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = parse_ofoldpart_partitions,
 	.name = "ofoldpart",
 };
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 3e0285696227..0aacf125938b 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -614,7 +614,6 @@ static int omap2_onenand_probe(struct platform_device *pdev)
 	struct onenand_chip *this;
 	int r;
 	struct resource *res;
-	struct mtd_part_parser_data ppdata = {};
 
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata == NULL) {
@@ -713,6 +712,7 @@ static int omap2_onenand_probe(struct platform_device *pdev)
 	c->mtd.priv = &c->onenand;
 
 	c->mtd.dev.parent = &pdev->dev;
+	mtd_set_of_node(&c->mtd, pdata->of_node);
 
 	this = &c->onenand;
 	if (c->dma_channel >= 0) {
@@ -743,10 +743,8 @@ static int omap2_onenand_probe(struct platform_device *pdev)
 	if ((r = onenand_scan(&c->mtd, 1)) < 0)
 		goto err_release_regulator;
 
-	ppdata.of_node = pdata->of_node;
-	r = mtd_device_parse_register(&c->mtd, NULL, &ppdata,
-				      pdata ? pdata->parts : NULL,
-				      pdata ? pdata->nr_parts : 0);
+	r = mtd_device_register(&c->mtd, pdata ? pdata->parts : NULL,
+				pdata ? pdata->nr_parts : 0);
 	if (r)
 		goto err_release_onenand;
 
diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 5da911ebdf49..7623ac5fc586 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -57,7 +57,7 @@ static inline int redboot_checksum(struct fis_image_desc *img)
 }
 
 static int parse_redboot_partitions(struct mtd_info *master,
-				    struct mtd_partition **pparts,
+				    const struct mtd_partition **pparts,
 				    struct mtd_part_parser_data *data)
 {
 	int nrparts = 0;
@@ -290,28 +290,13 @@ static int parse_redboot_partitions(struct mtd_info *master,
 }
 
 static struct mtd_part_parser redboot_parser = {
-	.owner = THIS_MODULE,
 	.parse_fn = parse_redboot_partitions,
 	.name = "RedBoot",
 };
+module_mtd_part_parser(redboot_parser);
 
 /* mtd parsers will request the module by parser name */
 MODULE_ALIAS("RedBoot");
-
-static int __init redboot_parser_init(void)
-{
-	register_mtd_parser(&redboot_parser);
-	return 0;
-}
-
-static void __exit redboot_parser_exit(void)
-{
-	deregister_mtd_parser(&redboot_parser);
-}
-
-module_init(redboot_parser_init);
-module_exit(redboot_parser_exit);
-
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
 MODULE_DESCRIPTION("Parsing code for RedBoot Flash Image System (FIS) tables");
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index c23184a47fc4..b096f8bb05ba 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -206,9 +206,10 @@ static loff_t sm_mkoffset(struct sm_ftl *ftl, int zone, int block, int boffset)
 }
 
 /* Breaks offset into parts */
-static void sm_break_offset(struct sm_ftl *ftl, loff_t offset,
+static void sm_break_offset(struct sm_ftl *ftl, loff_t loffset,
 			    int *zone, int *block, int *boffset)
 {
+	u64 offset = loffset;
 	*boffset = do_div(offset, ftl->block_size);
 	*block = do_div(offset, ftl->max_lba);
 	*zone = offset >= ftl->zone_count ? -1 : offset;
diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index 2fe2a7e90fa9..0dc927540b3d 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -7,6 +7,13 @@ menuconfig MTD_SPI_NOR
 
 if MTD_SPI_NOR
 
+config MTD_MT81xx_NOR
+	tristate "Mediatek MT81xx SPI NOR flash controller"
+	help
+	  This enables access to SPI NOR flash, using MT81xx SPI NOR flash
+	  controller. This controller does not support generic SPI BUS, it only
+	  supports SPI NOR Flash.
+
 config MTD_SPI_NOR_USE_4K_SECTORS
 	bool "Use small 4096 B erase sectors"
 	default y
diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile
index e53333ef8582..0bf3a7f81675 100644
--- a/drivers/mtd/spi-nor/Makefile
+++ b/drivers/mtd/spi-nor/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_MTD_SPI_NOR)	+= spi-nor.o
 obj-$(CONFIG_SPI_FSL_QUADSPI)	+= fsl-quadspi.o
+obj-$(CONFIG_MTD_MT81xx_NOR)    += mtk-quadspi.o
 obj-$(CONFIG_SPI_NXP_SPIFI)	+= nxp-spifi.o
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index 7b10ed413983..54640f1eb3a1 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -269,7 +269,7 @@ struct fsl_qspi {
 	struct clk *clk, *clk_en;
 	struct device *dev;
 	struct completion c;
-	struct fsl_qspi_devtype_data *devtype_data;
+	const struct fsl_qspi_devtype_data *devtype_data;
 	u32 nor_size;
 	u32 nor_num;
 	u32 clk_rate;
@@ -927,15 +927,12 @@ static void fsl_qspi_unprep(struct spi_nor *nor, enum spi_nor_ops ops)
 static int fsl_qspi_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct mtd_part_parser_data ppdata;
 	struct device *dev = &pdev->dev;
 	struct fsl_qspi *q;
 	struct resource *res;
 	struct spi_nor *nor;
 	struct mtd_info *mtd;
 	int ret, i = 0;
-	const struct of_device_id *of_id =
-			of_match_device(fsl_qspi_dt_ids, &pdev->dev);
 
 	q = devm_kzalloc(dev, sizeof(*q), GFP_KERNEL);
 	if (!q)
@@ -946,7 +943,9 @@ static int fsl_qspi_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	q->dev = dev;
-	q->devtype_data = (struct fsl_qspi_devtype_data *)of_id->data;
+	q->devtype_data = of_device_get_match_data(dev);
+	if (!q->devtype_data)
+		return -ENODEV;
 	platform_set_drvdata(pdev, q);
 
 	/* find the resources */
@@ -1013,7 +1012,7 @@ static int fsl_qspi_probe(struct platform_device *pdev)
 		mtd = &nor->mtd;
 
 		nor->dev = dev;
-		nor->flash_node = np;
+		spi_nor_set_flash_node(nor, np);
 		nor->priv = q;
 
 		/* fill the hooks */
@@ -1038,8 +1037,7 @@ static int fsl_qspi_probe(struct platform_device *pdev)
 		if (ret)
 			goto mutex_failed;
 
-		ppdata.of_node = np;
-		ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+		ret = mtd_device_register(mtd, NULL, 0);
 		if (ret)
 			goto mutex_failed;
 
diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c
new file mode 100644
index 000000000000..d5f850d035bb
--- /dev/null
+++ b/drivers/mtd/spi-nor/mtk-quadspi.c
@@ -0,0 +1,485 @@
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: Bayi Cheng <bayi.cheng@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/ioport.h>
+#include <linux/math64.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/spi-nor.h>
+
+#define MTK_NOR_CMD_REG			0x00
+#define MTK_NOR_CNT_REG			0x04
+#define MTK_NOR_RDSR_REG		0x08
+#define MTK_NOR_RDATA_REG		0x0c
+#define MTK_NOR_RADR0_REG		0x10
+#define MTK_NOR_RADR1_REG		0x14
+#define MTK_NOR_RADR2_REG		0x18
+#define MTK_NOR_WDATA_REG		0x1c
+#define MTK_NOR_PRGDATA0_REG		0x20
+#define MTK_NOR_PRGDATA1_REG		0x24
+#define MTK_NOR_PRGDATA2_REG		0x28
+#define MTK_NOR_PRGDATA3_REG		0x2c
+#define MTK_NOR_PRGDATA4_REG		0x30
+#define MTK_NOR_PRGDATA5_REG		0x34
+#define MTK_NOR_SHREG0_REG		0x38
+#define MTK_NOR_SHREG1_REG		0x3c
+#define MTK_NOR_SHREG2_REG		0x40
+#define MTK_NOR_SHREG3_REG		0x44
+#define MTK_NOR_SHREG4_REG		0x48
+#define MTK_NOR_SHREG5_REG		0x4c
+#define MTK_NOR_SHREG6_REG		0x50
+#define MTK_NOR_SHREG7_REG		0x54
+#define MTK_NOR_SHREG8_REG		0x58
+#define MTK_NOR_SHREG9_REG		0x5c
+#define MTK_NOR_CFG1_REG		0x60
+#define MTK_NOR_CFG2_REG		0x64
+#define MTK_NOR_CFG3_REG		0x68
+#define MTK_NOR_STATUS0_REG		0x70
+#define MTK_NOR_STATUS1_REG		0x74
+#define MTK_NOR_STATUS2_REG		0x78
+#define MTK_NOR_STATUS3_REG		0x7c
+#define MTK_NOR_FLHCFG_REG		0x84
+#define MTK_NOR_TIME_REG		0x94
+#define MTK_NOR_PP_DATA_REG		0x98
+#define MTK_NOR_PREBUF_STUS_REG		0x9c
+#define MTK_NOR_DELSEL0_REG		0xa0
+#define MTK_NOR_DELSEL1_REG		0xa4
+#define MTK_NOR_INTRSTUS_REG		0xa8
+#define MTK_NOR_INTREN_REG		0xac
+#define MTK_NOR_CHKSUM_CTL_REG		0xb8
+#define MTK_NOR_CHKSUM_REG		0xbc
+#define MTK_NOR_CMD2_REG		0xc0
+#define MTK_NOR_WRPROT_REG		0xc4
+#define MTK_NOR_RADR3_REG		0xc8
+#define MTK_NOR_DUAL_REG		0xcc
+#define MTK_NOR_DELSEL2_REG		0xd0
+#define MTK_NOR_DELSEL3_REG		0xd4
+#define MTK_NOR_DELSEL4_REG		0xd8
+
+/* commands for mtk nor controller */
+#define MTK_NOR_READ_CMD		0x0
+#define MTK_NOR_RDSR_CMD		0x2
+#define MTK_NOR_PRG_CMD			0x4
+#define MTK_NOR_WR_CMD			0x10
+#define MTK_NOR_PIO_WR_CMD		0x90
+#define MTK_NOR_WRSR_CMD		0x20
+#define MTK_NOR_PIO_READ_CMD		0x81
+#define MTK_NOR_WR_BUF_ENABLE		0x1
+#define MTK_NOR_WR_BUF_DISABLE		0x0
+#define MTK_NOR_ENABLE_SF_CMD		0x30
+#define MTK_NOR_DUAD_ADDR_EN		0x8
+#define MTK_NOR_QUAD_READ_EN		0x4
+#define MTK_NOR_DUAL_ADDR_EN		0x2
+#define MTK_NOR_DUAL_READ_EN		0x1
+#define MTK_NOR_DUAL_DISABLE		0x0
+#define MTK_NOR_FAST_READ		0x1
+
+#define SFLASH_WRBUF_SIZE		128
+
+/* Can shift up to 48 bits (6 bytes) of TX/RX */
+#define MTK_NOR_MAX_RX_TX_SHIFT		6
+/* can shift up to 56 bits (7 bytes) transfer by MTK_NOR_PRG_CMD */
+#define MTK_NOR_MAX_SHIFT		7
+
+/* Helpers for accessing the program data / shift data registers */
+#define MTK_NOR_PRG_REG(n)		(MTK_NOR_PRGDATA0_REG + 4 * (n))
+#define MTK_NOR_SHREG(n)		(MTK_NOR_SHREG0_REG + 4 * (n))
+
+struct mt8173_nor {
+	struct spi_nor nor;
+	struct device *dev;
+	void __iomem *base;	/* nor flash base address */
+	struct clk *spi_clk;
+	struct clk *nor_clk;
+};
+
+static void mt8173_nor_set_read_mode(struct mt8173_nor *mt8173_nor)
+{
+	struct spi_nor *nor = &mt8173_nor->nor;
+
+	switch (nor->flash_read) {
+	case SPI_NOR_FAST:
+		writeb(nor->read_opcode, mt8173_nor->base +
+		       MTK_NOR_PRGDATA3_REG);
+		writeb(MTK_NOR_FAST_READ, mt8173_nor->base +
+		       MTK_NOR_CFG1_REG);
+		break;
+	case SPI_NOR_DUAL:
+		writeb(nor->read_opcode, mt8173_nor->base +
+		       MTK_NOR_PRGDATA3_REG);
+		writeb(MTK_NOR_DUAL_READ_EN, mt8173_nor->base +
+		       MTK_NOR_DUAL_REG);
+		break;
+	case SPI_NOR_QUAD:
+		writeb(nor->read_opcode, mt8173_nor->base +
+		       MTK_NOR_PRGDATA4_REG);
+		writeb(MTK_NOR_QUAD_READ_EN, mt8173_nor->base +
+		       MTK_NOR_DUAL_REG);
+		break;
+	default:
+		writeb(MTK_NOR_DUAL_DISABLE, mt8173_nor->base +
+		       MTK_NOR_DUAL_REG);
+		break;
+	}
+}
+
+static int mt8173_nor_execute_cmd(struct mt8173_nor *mt8173_nor, u8 cmdval)
+{
+	int reg;
+	u8 val = cmdval & 0x1f;
+
+	writeb(cmdval, mt8173_nor->base + MTK_NOR_CMD_REG);
+	return readl_poll_timeout(mt8173_nor->base + MTK_NOR_CMD_REG, reg,
+				  !(reg & val), 100, 10000);
+}
+
+static int mt8173_nor_do_tx_rx(struct mt8173_nor *mt8173_nor, u8 op,
+			       u8 *tx, int txlen, u8 *rx, int rxlen)
+{
+	int len = 1 + txlen + rxlen;
+	int i, ret, idx;
+
+	if (len > MTK_NOR_MAX_SHIFT)
+		return -EINVAL;
+
+	writeb(len * 8, mt8173_nor->base + MTK_NOR_CNT_REG);
+
+	/* start at PRGDATA5, go down to PRGDATA0 */
+	idx = MTK_NOR_MAX_RX_TX_SHIFT - 1;
+
+	/* opcode */
+	writeb(op, mt8173_nor->base + MTK_NOR_PRG_REG(idx));
+	idx--;
+
+	/* program TX data */
+	for (i = 0; i < txlen; i++, idx--)
+		writeb(tx[i], mt8173_nor->base + MTK_NOR_PRG_REG(idx));
+
+	/* clear out rest of TX registers */
+	while (idx >= 0) {
+		writeb(0, mt8173_nor->base + MTK_NOR_PRG_REG(idx));
+		idx--;
+	}
+
+	ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PRG_CMD);
+	if (ret)
+		return ret;
+
+	/* restart at first RX byte */
+	idx = rxlen - 1;
+
+	/* read out RX data */
+	for (i = 0; i < rxlen; i++, idx--)
+		rx[i] = readb(mt8173_nor->base + MTK_NOR_SHREG(idx));
+
+	return 0;
+}
+
+/* Do a WRSR (Write Status Register) command */
+static int mt8173_nor_wr_sr(struct mt8173_nor *mt8173_nor, u8 sr)
+{
+	writeb(sr, mt8173_nor->base + MTK_NOR_PRGDATA5_REG);
+	writeb(8, mt8173_nor->base + MTK_NOR_CNT_REG);
+	return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WRSR_CMD);
+}
+
+static int mt8173_nor_write_buffer_enable(struct mt8173_nor *mt8173_nor)
+{
+	u8 reg;
+
+	/* the bit0 of MTK_NOR_CFG2_REG is pre-fetch buffer
+	 * 0: pre-fetch buffer use for read
+	 * 1: pre-fetch buffer use for page program
+	 */
+	writel(MTK_NOR_WR_BUF_ENABLE, mt8173_nor->base + MTK_NOR_CFG2_REG);
+	return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg,
+				  0x01 == (reg & 0x01), 100, 10000);
+}
+
+static int mt8173_nor_write_buffer_disable(struct mt8173_nor *mt8173_nor)
+{
+	u8 reg;
+
+	writel(MTK_NOR_WR_BUF_DISABLE, mt8173_nor->base + MTK_NOR_CFG2_REG);
+	return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg,
+				  MTK_NOR_WR_BUF_DISABLE == (reg & 0x1), 100,
+				  10000);
+}
+
+static void mt8173_nor_set_addr(struct mt8173_nor *mt8173_nor, u32 addr)
+{
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR0_REG + i * 4);
+		addr >>= 8;
+	}
+	/* Last register is non-contiguous */
+	writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR3_REG);
+}
+
+static int mt8173_nor_read(struct spi_nor *nor, loff_t from, size_t length,
+			   size_t *retlen, u_char *buffer)
+{
+	int i, ret;
+	int addr = (int)from;
+	u8 *buf = (u8 *)buffer;
+	struct mt8173_nor *mt8173_nor = nor->priv;
+
+	/* set mode for fast read mode ,dual mode or quad mode */
+	mt8173_nor_set_read_mode(mt8173_nor);
+	mt8173_nor_set_addr(mt8173_nor, addr);
+
+	for (i = 0; i < length; i++, (*retlen)++) {
+		ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_READ_CMD);
+		if (ret < 0)
+			return ret;
+		buf[i] = readb(mt8173_nor->base + MTK_NOR_RDATA_REG);
+	}
+	return 0;
+}
+
+static int mt8173_nor_write_single_byte(struct mt8173_nor *mt8173_nor,
+					int addr, int length, u8 *data)
+{
+	int i, ret;
+
+	mt8173_nor_set_addr(mt8173_nor, addr);
+
+	for (i = 0; i < length; i++) {
+		writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG);
+		ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_WR_CMD);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
+static int mt8173_nor_write_buffer(struct mt8173_nor *mt8173_nor, int addr,
+				   const u8 *buf)
+{
+	int i, bufidx, data;
+
+	mt8173_nor_set_addr(mt8173_nor, addr);
+
+	bufidx = 0;
+	for (i = 0; i < SFLASH_WRBUF_SIZE; i += 4) {
+		data = buf[bufidx + 3]<<24 | buf[bufidx + 2]<<16 |
+		       buf[bufidx + 1]<<8 | buf[bufidx];
+		bufidx += 4;
+		writel(data, mt8173_nor->base + MTK_NOR_PP_DATA_REG);
+	}
+	return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WR_CMD);
+}
+
+static void mt8173_nor_write(struct spi_nor *nor, loff_t to, size_t len,
+			     size_t *retlen, const u_char *buf)
+{
+	int ret;
+	struct mt8173_nor *mt8173_nor = nor->priv;
+
+	ret = mt8173_nor_write_buffer_enable(mt8173_nor);
+	if (ret < 0)
+		dev_warn(mt8173_nor->dev, "write buffer enable failed!\n");
+
+	while (len >= SFLASH_WRBUF_SIZE) {
+		ret = mt8173_nor_write_buffer(mt8173_nor, to, buf);
+		if (ret < 0)
+			dev_err(mt8173_nor->dev, "write buffer failed!\n");
+		len -= SFLASH_WRBUF_SIZE;
+		to += SFLASH_WRBUF_SIZE;
+		buf += SFLASH_WRBUF_SIZE;
+		(*retlen) += SFLASH_WRBUF_SIZE;
+	}
+	ret = mt8173_nor_write_buffer_disable(mt8173_nor);
+	if (ret < 0)
+		dev_warn(mt8173_nor->dev, "write buffer disable failed!\n");
+
+	if (len) {
+		ret = mt8173_nor_write_single_byte(mt8173_nor, to, (int)len,
+						   (u8 *)buf);
+		if (ret < 0)
+			dev_err(mt8173_nor->dev, "write single byte failed!\n");
+		(*retlen) += len;
+	}
+}
+
+static int mt8173_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len)
+{
+	int ret;
+	struct mt8173_nor *mt8173_nor = nor->priv;
+
+	switch (opcode) {
+	case SPINOR_OP_RDSR:
+		ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_RDSR_CMD);
+		if (ret < 0)
+			return ret;
+		if (len == 1)
+			*buf = readb(mt8173_nor->base + MTK_NOR_RDSR_REG);
+		else
+			dev_err(mt8173_nor->dev, "len should be 1 for read status!\n");
+		break;
+	default:
+		ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, NULL, 0, buf, len);
+		break;
+	}
+	return ret;
+}
+
+static int mt8173_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf,
+				int len)
+{
+	int ret;
+	struct mt8173_nor *mt8173_nor = nor->priv;
+
+	switch (opcode) {
+	case SPINOR_OP_WRSR:
+		/* We only handle 1 byte */
+		ret = mt8173_nor_wr_sr(mt8173_nor, *buf);
+		break;
+	default:
+		ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, buf, len, NULL, 0);
+		if (ret)
+			dev_warn(mt8173_nor->dev, "write reg failure!\n");
+		break;
+	}
+	return ret;
+}
+
+static int __init mtk_nor_init(struct mt8173_nor *mt8173_nor,
+			       struct device_node *flash_node)
+{
+	int ret;
+	struct spi_nor *nor;
+
+	/* initialize controller to accept commands */
+	writel(MTK_NOR_ENABLE_SF_CMD, mt8173_nor->base + MTK_NOR_WRPROT_REG);
+
+	nor = &mt8173_nor->nor;
+	nor->dev = mt8173_nor->dev;
+	nor->priv = mt8173_nor;
+	spi_nor_set_flash_node(nor, flash_node);
+
+	/* fill the hooks to spi nor */
+	nor->read = mt8173_nor_read;
+	nor->read_reg = mt8173_nor_read_reg;
+	nor->write = mt8173_nor_write;
+	nor->write_reg = mt8173_nor_write_reg;
+	nor->mtd.name = "mtk_nor";
+	/* initialized with NULL */
+	ret = spi_nor_scan(nor, NULL, SPI_NOR_DUAL);
+	if (ret)
+		return ret;
+
+	return mtd_device_register(&nor->mtd, NULL, 0);
+}
+
+static int mtk_nor_drv_probe(struct platform_device *pdev)
+{
+	struct device_node *flash_np;
+	struct resource *res;
+	int ret;
+	struct mt8173_nor *mt8173_nor;
+
+	if (!pdev->dev.of_node) {
+		dev_err(&pdev->dev, "No DT found\n");
+		return -EINVAL;
+	}
+
+	mt8173_nor = devm_kzalloc(&pdev->dev, sizeof(*mt8173_nor), GFP_KERNEL);
+	if (!mt8173_nor)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, mt8173_nor);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	mt8173_nor->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(mt8173_nor->base))
+		return PTR_ERR(mt8173_nor->base);
+
+	mt8173_nor->spi_clk = devm_clk_get(&pdev->dev, "spi");
+	if (IS_ERR(mt8173_nor->spi_clk))
+		return PTR_ERR(mt8173_nor->spi_clk);
+
+	mt8173_nor->nor_clk = devm_clk_get(&pdev->dev, "sf");
+	if (IS_ERR(mt8173_nor->nor_clk))
+		return PTR_ERR(mt8173_nor->nor_clk);
+
+	mt8173_nor->dev = &pdev->dev;
+	ret = clk_prepare_enable(mt8173_nor->spi_clk);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(mt8173_nor->nor_clk);
+	if (ret) {
+		clk_disable_unprepare(mt8173_nor->spi_clk);
+		return ret;
+	}
+	/* only support one attached flash */
+	flash_np = of_get_next_available_child(pdev->dev.of_node, NULL);
+	if (!flash_np) {
+		dev_err(&pdev->dev, "no SPI flash device to configure\n");
+		ret = -ENODEV;
+		goto nor_free;
+	}
+	ret = mtk_nor_init(mt8173_nor, flash_np);
+
+nor_free:
+	if (ret) {
+		clk_disable_unprepare(mt8173_nor->spi_clk);
+		clk_disable_unprepare(mt8173_nor->nor_clk);
+	}
+	return ret;
+}
+
+static int mtk_nor_drv_remove(struct platform_device *pdev)
+{
+	struct mt8173_nor *mt8173_nor = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(mt8173_nor->spi_clk);
+	clk_disable_unprepare(mt8173_nor->nor_clk);
+	return 0;
+}
+
+static const struct of_device_id mtk_nor_of_ids[] = {
+	{ .compatible = "mediatek,mt8173-nor"},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mtk_nor_of_ids);
+
+static struct platform_driver mtk_nor_driver = {
+	.probe = mtk_nor_drv_probe,
+	.remove = mtk_nor_drv_remove,
+	.driver = {
+		.name = "mtk-nor",
+		.of_match_table = mtk_nor_of_ids,
+	},
+};
+
+module_platform_driver(mtk_nor_driver);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("MediaTek SPI NOR Flash Driver");
diff --git a/drivers/mtd/spi-nor/nxp-spifi.c b/drivers/mtd/spi-nor/nxp-spifi.c
index 9e82098ae644..ae428cb0e04b 100644
--- a/drivers/mtd/spi-nor/nxp-spifi.c
+++ b/drivers/mtd/spi-nor/nxp-spifi.c
@@ -271,7 +271,6 @@ static void nxp_spifi_dummy_id_read(struct spi_nor *nor)
 static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 				 struct device_node *np)
 {
-	struct mtd_part_parser_data ppdata;
 	enum read_mode flash_read;
 	u32 ctrl, property;
 	u16 mode = 0;
@@ -330,7 +329,7 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 	writel(ctrl, spifi->io_base + SPIFI_CTRL);
 
 	spifi->nor.dev   = spifi->dev;
-	spifi->nor.flash_node = np;
+	spi_nor_set_flash_node(&spifi->nor, np);
 	spifi->nor.priv  = spifi;
 	spifi->nor.read  = nxp_spifi_read;
 	spifi->nor.write = nxp_spifi_write;
@@ -361,8 +360,7 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 		return ret;
 	}
 
-	ppdata.of_node = np;
-	ret = mtd_device_parse_register(&spifi->nor.mtd, NULL, &ppdata, NULL, 0);
+	ret = mtd_device_register(&spifi->nor.mtd, NULL, 0);
 	if (ret) {
 		dev_err(spifi->dev, "mtd device parse failed\n");
 		return ret;
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 32477c4eb421..ed0c19c558b5 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -38,6 +38,7 @@
 #define CHIP_ERASE_2MB_READY_WAIT_JIFFIES	(40UL * HZ)
 
 #define SPI_NOR_MAX_ID_LEN	6
+#define SPI_NOR_MAX_ADDR_WIDTH	4
 
 struct flash_info {
 	char		*name;
@@ -313,6 +314,29 @@ static void spi_nor_unlock_and_unprep(struct spi_nor *nor, enum spi_nor_ops ops)
 }
 
 /*
+ * Initiate the erasure of a single sector
+ */
+static int spi_nor_erase_sector(struct spi_nor *nor, u32 addr)
+{
+	u8 buf[SPI_NOR_MAX_ADDR_WIDTH];
+	int i;
+
+	if (nor->erase)
+		return nor->erase(nor, addr);
+
+	/*
+	 * Default implementation, if driver doesn't have a specialized HW
+	 * control
+	 */
+	for (i = nor->addr_width - 1; i >= 0; i--) {
+		buf[i] = addr & 0xff;
+		addr >>= 8;
+	}
+
+	return nor->write_reg(nor, nor->erase_opcode, buf, nor->addr_width);
+}
+
+/*
  * Erase an address range on the nor chip.  The address range may extend
  * one or more erase sectors.  Return an error is there is a problem erasing.
  */
@@ -371,10 +395,9 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 		while (len) {
 			write_enable(nor);
 
-			if (nor->erase(nor, addr)) {
-				ret = -EIO;
+			ret = spi_nor_erase_sector(nor, addr);
+			if (ret)
 				goto erase_err;
-			}
 
 			addr += mtd->erasesize;
 			len -= mtd->erasesize;
@@ -387,17 +410,13 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 	write_disable(nor);
 
+erase_err:
 	spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_ERASE);
 
-	instr->state = MTD_ERASE_DONE;
+	instr->state = ret ? MTD_ERASE_FAILED : MTD_ERASE_DONE;
 	mtd_erase_callback(instr);
 
 	return ret;
-
-erase_err:
-	spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_ERASE);
-	instr->state = MTD_ERASE_FAILED;
-	return ret;
 }
 
 static void stm_get_locked_range(struct spi_nor *nor, u8 sr, loff_t *ofs,
@@ -459,11 +478,14 @@ static int stm_is_locked_sr(struct spi_nor *nor, loff_t ofs, uint64_t len,
 static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 {
 	struct mtd_info *mtd = &nor->mtd;
-	u8 status_old, status_new;
+	int status_old, status_new;
 	u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
 	u8 shift = ffs(mask) - 1, pow, val;
+	int ret;
 
 	status_old = read_sr(nor);
+	if (status_old < 0)
+		return status_old;
 
 	/* SPI NOR always locks to the end */
 	if (ofs + len != mtd->size) {
@@ -498,7 +520,10 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 		return -EINVAL;
 
 	write_enable(nor);
-	return write_sr(nor, status_new);
+	ret = write_sr(nor, status_new);
+	if (ret)
+		return ret;
+	return spi_nor_wait_till_ready(nor);
 }
 
 /*
@@ -509,11 +534,14 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 {
 	struct mtd_info *mtd = &nor->mtd;
-	uint8_t status_old, status_new;
+	int status_old, status_new;
 	u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
 	u8 shift = ffs(mask) - 1, pow, val;
+	int ret;
 
 	status_old = read_sr(nor);
+	if (status_old < 0)
+		return status_old;
 
 	/* Cannot unlock; would unlock larger region than requested */
 	if (stm_is_locked_sr(nor, ofs - mtd->erasesize, mtd->erasesize,
@@ -546,7 +574,10 @@ static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 		return -EINVAL;
 
 	write_enable(nor);
-	return write_sr(nor, status_new);
+	ret = write_sr(nor, status_new);
+	if (ret)
+		return ret;
+	return spi_nor_wait_till_ready(nor);
 }
 
 /*
@@ -715,9 +746,9 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "mx25l4005a",  INFO(0xc22013, 0, 64 * 1024,   8, SECT_4K) },
 	{ "mx25l8005",   INFO(0xc22014, 0, 64 * 1024,  16, 0) },
 	{ "mx25l1606e",  INFO(0xc22015, 0, 64 * 1024,  32, SECT_4K) },
-	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, 0) },
+	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, SECT_4K) },
 	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64, SECT_4K) },
-	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, 0) },
+	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) },
 	{ "mx25u6435f",  INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
 	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
 	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
@@ -856,7 +887,7 @@ static const struct flash_info *spi_nor_read_id(struct spi_nor *nor)
 
 	tmp = nor->read_reg(nor, SPINOR_OP_RDID, id, SPI_NOR_MAX_ID_LEN);
 	if (tmp < 0) {
-		dev_dbg(nor->dev, " error %d reading JEDEC ID\n", tmp);
+		dev_dbg(nor->dev, "error %d reading JEDEC ID\n", tmp);
 		return ERR_PTR(tmp);
 	}
 
@@ -867,7 +898,7 @@ static const struct flash_info *spi_nor_read_id(struct spi_nor *nor)
 				return &spi_nor_ids[tmp];
 		}
 	}
-	dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %2x, %2x\n",
+	dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n",
 		id[0], id[1], id[2]);
 	return ERR_PTR(-ENODEV);
 }
@@ -1013,6 +1044,8 @@ static int macronix_quad_enable(struct spi_nor *nor)
 	int ret, val;
 
 	val = read_sr(nor);
+	if (val < 0)
+		return val;
 	write_enable(nor);
 
 	write_sr(nor, val | SR_QUAD_EN_MX);
@@ -1138,7 +1171,7 @@ static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info)
 static int spi_nor_check(struct spi_nor *nor)
 {
 	if (!nor->dev || !nor->read || !nor->write ||
-		!nor->read_reg || !nor->write_reg || !nor->erase) {
+		!nor->read_reg || !nor->write_reg) {
 		pr_err("spi-nor: please fill all the necessary fields!\n");
 		return -EINVAL;
 	}
@@ -1151,7 +1184,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 	const struct flash_info *info = NULL;
 	struct device *dev = nor->dev;
 	struct mtd_info *mtd = &nor->mtd;
-	struct device_node *np = nor->flash_node;
+	struct device_node *np = spi_nor_get_flash_node(nor);
 	int ret;
 	int i;
 
@@ -1338,6 +1371,12 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 		nor->addr_width = 3;
 	}
 
+	if (nor->addr_width > SPI_NOR_MAX_ADDR_WIDTH) {
+		dev_err(dev, "address width is too large: %u\n",
+			nor->addr_width);
+		return -EINVAL;
+	}
+
 	nor->read_dummy = spi_nor_read_dummy_cycles(nor);
 
 	dev_info(dev, "%s (%lld Kbytes)\n", info->name,
diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c
index ba1890d5632c..ff1e0565b020 100644
--- a/drivers/mtd/tests/pagetest.c
+++ b/drivers/mtd/tests/pagetest.c
@@ -127,13 +127,12 @@ static int crosstest(void)
 	unsigned char *pp1, *pp2, *pp3, *pp4;
 
 	pr_info("crosstest\n");
-	pp1 = kmalloc(pgsize * 4, GFP_KERNEL);
+	pp1 = kzalloc(pgsize * 4, GFP_KERNEL);
 	if (!pp1)
 		return -ENOMEM;
 	pp2 = pp1 + pgsize;
 	pp3 = pp2 + pgsize;
 	pp4 = pp3 + pgsize;
-	memset(pp1, 0, pgsize * 4);
 
 	addr0 = 0;
 	for (i = 0; i < ebcnt && bbt[i]; ++i)
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 1c5f3b273e6a..79e1a0282163 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -2459,8 +2459,13 @@ boomerang_interrupt(int irq, void *dev_id)
 					struct sk_buff *skb = vp->tx_skbuff[entry];
 #if DO_ZEROCOPY
 					int i;
-					for (i=0; i<=skb_shinfo(skb)->nr_frags; i++)
-							pci_unmap_single(VORTEX_PCI(vp),
+					pci_unmap_single(VORTEX_PCI(vp),
+							le32_to_cpu(vp->tx_ring[entry].frag[0].addr),
+							le32_to_cpu(vp->tx_ring[entry].frag[0].length),
+							PCI_DMA_TODEVICE);
+
+					for (i=1; i<=skb_shinfo(skb)->nr_frags; i++)
+							pci_unmap_page(VORTEX_PCI(vp),
 											 le32_to_cpu(vp->tx_ring[entry].frag[i].addr),
 											 le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF,
 											 PCI_DMA_TODEVICE);
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index c7798d360512..06f6cffdfaf5 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -466,6 +466,11 @@ static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
 			len -= ETH_FCS_LEN;
 
 			skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
+			if (unlikely(!skb)) {
+				bgmac_err(bgmac, "build_skb failed\n");
+				put_page(virt_to_head_page(buf));
+				break;
+			}
 			skb_put(skb, BGMAC_RX_FRAME_OFFSET +
 				BGMAC_RX_BUF_OFFSET + len);
 			skb_pull(skb, BGMAC_RX_FRAME_OFFSET +
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index c56347536f6b..9d9984a87d42 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1040,6 +1040,8 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
 		/* close possible race with dev_close */
 		if (unlikely(!netif_running(dev))) {
 			queue_writel(queue, IDR, -1);
+			if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+				queue_writel(queue, ISR, -1);
 			break;
 		}
 
@@ -1561,6 +1563,8 @@ static void macb_reset_hw(struct macb *bp)
 	for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue) {
 		queue_writel(queue, IDR, -1);
 		queue_readl(queue, ISR);
+		if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+			queue_writel(queue, ISR, -1);
 	}
 }
 
diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index 6b1261c0b1c2..7c92eb854925 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -1434,7 +1434,6 @@ struct fman_mac *dtsec_config(struct fman_mac_params *params)
 	dtsec->tbiphy = of_phy_find_device(params->internal_phy_node);
 	if (!dtsec->tbiphy) {
 		pr_err("of_phy_find_device (TBI PHY) failed\n");
-		put_device(&dtsec->tbiphy->mdio.dev);
 		goto err_dtsec_drv_param;
 	}
 
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 622005abf859..f3c63dce1e30 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -29,7 +29,7 @@
 
 #include <asm/io.h>
 #if IS_ENABLED(CONFIG_UCC_GETH)
-#include <asm/ucc.h>	/* for ucc_set_qe_mux_mii_mng() */
+#include <soc/fsl/qe/ucc.h>
 #endif
 
 #include "gianfar.h"
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index cbddbe2d0429..5bf1ade28315 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -40,10 +40,10 @@
 #include <asm/uaccess.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/immap_qe.h>
-#include <asm/qe.h>
-#include <asm/ucc.h>
-#include <asm/ucc_fast.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+#include <soc/fsl/qe/ucc.h>
+#include <soc/fsl/qe/ucc_fast.h>
 #include <asm/machdep.h>
 
 #include "ucc_geth.h"
diff --git a/drivers/net/ethernet/freescale/ucc_geth.h b/drivers/net/ethernet/freescale/ucc_geth.h
index 75f337163ce3..5da19b440a6a 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.h
+++ b/drivers/net/ethernet/freescale/ucc_geth.h
@@ -22,11 +22,11 @@
 #include <linux/list.h>
 #include <linux/if_ether.h>
 
-#include <asm/immap_qe.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
 
-#include <asm/ucc.h>
-#include <asm/ucc_fast.h>
+#include <soc/fsl/qe/ucc.h>
+#include <soc/fsl/qe/ucc_fast.h>
 
 #define DRV_DESC "QE UCC Gigabit Ethernet Controller"
 #define DRV_NAME "ucc_geth"
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index 253f8ed0537a..0c4afe95ef54 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -500,8 +500,10 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
 	while (cnt && !last) {
 		buf = priv->rx_buf[priv->rx_head];
 		skb = build_skb(buf, priv->rx_buf_size);
-		if (unlikely(!skb))
+		if (unlikely(!skb)) {
 			net_dbg_ratelimited("build_skb failed\n");
+			goto refill;
+		}
 
 		dma_unmap_single(&ndev->dev, priv->rx_phys[priv->rx_head],
 				 RX_BUF_SIZE, DMA_FROM_DEVICE);
@@ -528,6 +530,7 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
 			rx++;
 		}
 
+refill:
 		buf = netdev_alloc_frag(priv->rx_buf_size);
 		if (!buf)
 			goto done;
diff --git a/drivers/net/ethernet/hisilicon/hns_mdio.c b/drivers/net/ethernet/hisilicon/hns_mdio.c
index 58c96c412fe8..765ddb3dcd1a 100644
--- a/drivers/net/ethernet/hisilicon/hns_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns_mdio.c
@@ -458,7 +458,7 @@ static int hns_mdio_probe(struct platform_device *pdev)
 	}
 
 	mdio_dev->subctrl_vbase =
-		syscon_node_to_regmap(of_parse_phandle(np, "subctrl_vbase", 0));
+		syscon_node_to_regmap(of_parse_phandle(np, "subctrl-vbase", 0));
 	if (IS_ERR(mdio_dev->subctrl_vbase)) {
 		dev_warn(&pdev->dev, "no syscon hisilicon,peri-c-subctrl\n");
 		mdio_dev->subctrl_vbase = NULL;
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index a0bbb6b9f5aa..94da913b151d 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1239,7 +1239,7 @@ static int i40evf_config_rss_aq(struct i40e_vsi *vsi, const u8 *seed,
 
 	if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
 		/* bail because we already have a command pending */
-		dev_err(&adapter->pdev->dev, "Cannot confiure RSS, command %d pending\n",
+		dev_err(&adapter->pdev->dev, "Cannot configure RSS, command %d pending\n",
 			adapter->current_op);
 		return -EBUSY;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index ffe894e6d287..45479ef5bcf4 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1015,6 +1015,7 @@ static int mlxsw_sp_port_obj_del(struct net_device *dev,
 	case SWITCHDEV_OBJ_ID_PORT_MDB:
 		err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
 					    SWITCHDEV_OBJ_PORT_MDB(obj));
+		break;
 	default:
 		err = -EOPNOTSUPP;
 		break;
diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index eb9230e2092f..63aca9f847e1 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -7,7 +7,7 @@ config NET_VENDOR_SMSC
 	default y
 	depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
 		   ISA || M32R || MAC || MIPS || MN10300 || NIOS2 || PCI || \
-		   PCMCIA || SUPERH || XTENSA
+		   PCMCIA || SUPERH || XTENSA || H8300
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
@@ -38,7 +38,7 @@ config SMC91X
 	select MII
 	depends on !OF || GPIOLIB
 	depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
-		   M32R || MIPS || MN10300 || NIOS2 || SUPERH || XTENSA
+		   M32R || MIPS || MN10300 || NIOS2 || SUPERH || XTENSA || H8300
 	---help---
 	  This is a driver for SMC's 91x series of Ethernet chipsets,
 	  including the SMC91C94 and the SMC91C111. Say Y if you want it
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index a3c129e1e40a..1a55c7976df0 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -172,6 +172,17 @@ static inline void mcf_outsw(void *a, unsigned char *p, int l)
 
 #define SMC_IRQ_FLAGS		0
 
+#elif defined(CONFIG_H8300)
+#define SMC_CAN_USE_8BIT	1
+#define SMC_CAN_USE_16BIT	0
+#define SMC_CAN_USE_32BIT	0
+#define SMC_NOWAIT		0
+
+#define SMC_inb(a, r)		ioread8((a) + (r))
+#define SMC_outb(v, a, r)	iowrite8(v, (a) + (r))
+#define SMC_insb(a, r, p, l)	ioread8_rep((a) + (r), p, l)
+#define SMC_outsb(a, r, p, l)	iowrite8_rep((a) + (r), p, l)
+
 #else
 
 /*
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 903737adfc01..bad3f005faee 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -901,6 +901,11 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 
 	phydev->state = PHY_READY;
 
+	/* Initial carrier state is off as the phy is about to be
+	 * (re)initialized.
+	 */
+	netif_carrier_off(phydev->attached_dev);
+
 	/* Do initial configuration here, now that
 	 * we have certain key parameters
 	 * (dev_flags and interface)
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index cd39025d2abf..1bc5e93d2a34 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -571,8 +571,10 @@ static int x25_asy_open_tty(struct tty_struct *tty)
 
 	/* Perform the low-level X.25 async init */
 	err = x25_asy_open(sl->dev);
-	if (err)
+	if (err) {
+		x25_asy_free(sl);
 		return err;
+	}
 	/* Done.  We have linked the TTY line to a channel. */
 	return 0;
 }
diff --git a/drivers/net/wireless/marvell/mwifiex/README b/drivers/net/wireless/marvell/mwifiex/README
index 2f0f9b5609d0..24e649b1eb24 100644
--- a/drivers/net/wireless/marvell/mwifiex/README
+++ b/drivers/net/wireless/marvell/mwifiex/README
@@ -237,4 +237,14 @@ device_dump
 
 	cat fw_dump
 
+verext
+	This command is used to get extended firmware version string using
+	different configuration parameters.
+
+	Usage:
+		echo "[version_str_sel]" > verext
+		cat verext
+
+		[version_str_sel]: firmware support several extend version
+				   string cases, include 0/1/10/20/21/99
 ===============================================================================
diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index e7adef72c05f..84615533986c 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -1962,6 +1962,9 @@ mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 
+	if (!mwifiex_stop_bg_scan(priv))
+		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
+
 	if (mwifiex_deauthenticate(priv, NULL))
 		return -EFAULT;
 
@@ -2217,6 +2220,9 @@ mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
 		    "info: Trying to associate to %s and bssid %pM\n",
 		    (char *)sme->ssid, sme->bssid);
 
+	if (!mwifiex_stop_bg_scan(priv))
+		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
+
 	ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
 				     priv->bss_mode, sme->channel, sme, 0);
 	if (!ret) {
@@ -2420,6 +2426,9 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 		return -EBUSY;
 	}
 
+	if (!mwifiex_stop_bg_scan(priv))
+		cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy);
+
 	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
 	if (!user_scan_cfg)
 		return -ENOMEM;
@@ -2487,6 +2496,125 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 	return 0;
 }
 
+/* CFG802.11 operation handler for sched_scan_start.
+ *
+ * This function issues a bgscan config request to the firmware based upon
+ * the user specified sched_scan configuration. On successful completion,
+ * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
+ * query command to get sched_scan results from firmware.
+ */
+static int
+mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
+				  struct net_device *dev,
+				  struct cfg80211_sched_scan_request *request)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+	int i, offset;
+	struct ieee80211_channel *chan;
+	struct mwifiex_bg_scan_cfg *bgscan_cfg;
+	struct ieee_types_header *ie;
+
+	if (!request || (!request->n_ssids && !request->n_match_sets)) {
+		wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
+			  __func__);
+		return -EINVAL;
+	}
+
+	wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
+		   request->n_ssids, request->n_match_sets);
+	wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
+		   request->n_channels, request->scan_plans->interval,
+		   (int)request->ie_len);
+
+	bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
+	if (!bgscan_cfg)
+		return -ENOMEM;
+
+	if (priv->scan_request || priv->scan_aborting)
+		bgscan_cfg->start_later = true;
+
+	bgscan_cfg->num_ssids = request->n_match_sets;
+	bgscan_cfg->ssid_list = request->match_sets;
+
+	if (request->ie && request->ie_len) {
+		offset = 0;
+		for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
+			if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
+				continue;
+			priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
+			ie = (struct ieee_types_header *)(request->ie + offset);
+			memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
+			offset += sizeof(*ie) + ie->len;
+
+			if (offset >= request->ie_len)
+				break;
+		}
+	}
+
+	for (i = 0; i < min_t(u32, request->n_channels,
+			      MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
+		chan = request->channels[i];
+		bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
+		bgscan_cfg->chan_list[i].radio_type = chan->band;
+
+		if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
+			bgscan_cfg->chan_list[i].scan_type =
+						MWIFIEX_SCAN_TYPE_PASSIVE;
+		else
+			bgscan_cfg->chan_list[i].scan_type =
+						MWIFIEX_SCAN_TYPE_ACTIVE;
+
+		bgscan_cfg->chan_list[i].scan_time = 0;
+	}
+
+	bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
+					  MWIFIEX_BG_SCAN_CHAN_MAX);
+
+	/* Use at least 15 second for per scan cycle */
+	bgscan_cfg->scan_interval = (request->scan_plans->interval >
+				     MWIFIEX_BGSCAN_INTERVAL) ?
+				request->scan_plans->interval :
+				MWIFIEX_BGSCAN_INTERVAL;
+
+	bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
+	bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
+				MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
+	bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
+	bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
+	bgscan_cfg->enable = true;
+	if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
+		bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
+		bgscan_cfg->rssi_threshold = request->min_rssi_thold;
+	}
+
+	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
+			     HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
+		kfree(bgscan_cfg);
+		return -EFAULT;
+	}
+
+	priv->sched_scanning = true;
+
+	kfree(bgscan_cfg);
+	return 0;
+}
+
+/* CFG802.11 operation handler for sched_scan_stop.
+ *
+ * This function issues a bgscan config command to disable
+ * previous bgscan configuration in the firmware
+ */
+static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
+					    struct net_device *dev)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+
+	wiphy_info(wiphy, "sched scan stop!");
+	mwifiex_stop_bg_scan(priv);
+
+	return 0;
+}
+
 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
 				   struct mwifiex_private *priv)
 {
@@ -2848,6 +2976,9 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 	mwifiex_dev_debugfs_remove(priv);
 #endif
 
+	if (priv->sched_scanning)
+		priv->sched_scanning = false;
+
 	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
 
 	skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
@@ -3044,10 +3175,12 @@ static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
 				sizeof(byte_seq));
 		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
 
-		if (first_pat)
+		if (first_pat) {
 			first_pat = false;
-		else
+			mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n");
+		} else {
 			mef_entry->filter[filt_num].filt_action = TYPE_AND;
+		}
 
 		filt_num++;
 	}
@@ -3073,6 +3206,7 @@ static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
 		mef_entry->filter[filt_num].offset = 56;
 		mef_entry->filter[filt_num].filt_type = TYPE_EQ;
 		mef_entry->filter[filt_num].filt_action = TYPE_OR;
+		mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n");
 	}
 	return ret;
 }
@@ -3143,7 +3277,7 @@ static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
 
 	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
 
-	if (!priv->media_connected) {
+	if (!priv->media_connected && !wowlan->nd_config) {
 		mwifiex_dbg(adapter, ERROR,
 			    "Can not configure WOWLAN in disconnected state\n");
 		return 0;
@@ -3155,19 +3289,30 @@ static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
 		return ret;
 	}
 
+	memset(&hs_cfg, 0, sizeof(hs_cfg));
+	hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions);
+
+	if (wowlan->nd_config) {
+		mwifiex_dbg(adapter, INFO, "Wake on net detect\n");
+		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
+		mwifiex_cfg80211_sched_scan_start(wiphy, priv->netdev,
+						  wowlan->nd_config);
+	}
+
 	if (wowlan->disconnect) {
-		memset(&hs_cfg, 0, sizeof(hs_cfg));
-		hs_cfg.is_invoke_hostcmd = false;
-		hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
-		hs_cfg.gpio = adapter->hs_cfg.gpio;
-		hs_cfg.gap = adapter->hs_cfg.gap;
-		ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
-					    MWIFIEX_SYNC_CMD, &hs_cfg);
-		if (ret) {
-			mwifiex_dbg(adapter, ERROR,
-				    "Failed to set HS params\n");
-			return ret;
-		}
+		hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT;
+		mwifiex_dbg(priv->adapter, INFO, "Wake on device disconnect\n");
+	}
+
+	hs_cfg.is_invoke_hostcmd = false;
+	hs_cfg.gpio = adapter->hs_cfg.gpio;
+	hs_cfg.gap = adapter->hs_cfg.gap;
+	ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
+				    MWIFIEX_SYNC_CMD, &hs_cfg);
+	if (ret) {
+		mwifiex_dbg(adapter, ERROR,
+			    "Failed to set HS params\n");
+		return ret;
 	}
 
 	return ret;
@@ -3175,6 +3320,64 @@ static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
 
 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
 {
+	struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
+	struct mwifiex_private *priv =
+		mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
+	struct mwifiex_ds_wakeup_reason wakeup_reason;
+	struct cfg80211_wowlan_wakeup wakeup_report;
+	int i;
+
+	mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD,
+				  &wakeup_reason);
+	memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup));
+
+	wakeup_report.pattern_idx = -1;
+
+	switch (wakeup_reason.hs_wakeup_reason) {
+	case NO_HSWAKEUP_REASON:
+		break;
+	case BCAST_DATA_MATCHED:
+		break;
+	case MCAST_DATA_MATCHED:
+		break;
+	case UCAST_DATA_MATCHED:
+		break;
+	case MASKTABLE_EVENT_MATCHED:
+		break;
+	case NON_MASKABLE_EVENT_MATCHED:
+		if (wiphy->wowlan_config->disconnect)
+			wakeup_report.disconnect = true;
+		if (wiphy->wowlan_config->nd_config)
+			wakeup_report.net_detect = adapter->nd_info;
+		break;
+	case NON_MASKABLE_CONDITION_MATCHED:
+		break;
+	case MAGIC_PATTERN_MATCHED:
+		if (wiphy->wowlan_config->magic_pkt)
+			wakeup_report.magic_pkt = true;
+		if (wiphy->wowlan_config->n_patterns)
+			wakeup_report.pattern_idx = 1;
+		break;
+	case CONTROL_FRAME_MATCHED:
+		break;
+	case	MANAGEMENT_FRAME_MATCHED:
+		break;
+	default:
+		break;
+	}
+
+	if ((wakeup_reason.hs_wakeup_reason > 0) &&
+	    (wakeup_reason.hs_wakeup_reason <= 7))
+		cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report,
+					      GFP_KERNEL);
+
+	if (adapter->nd_info) {
+		for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
+			kfree(adapter->nd_info->matches[i]);
+		kfree(adapter->nd_info);
+		adapter->nd_info = NULL;
+	}
+
 	return 0;
 }
 
@@ -3701,6 +3904,8 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
 	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
 	.set_antenna = mwifiex_cfg80211_set_antenna,
 	.del_station = mwifiex_cfg80211_del_station,
+	.sched_scan_start = mwifiex_cfg80211_sched_scan_start,
+	.sched_scan_stop = mwifiex_cfg80211_sched_scan_stop,
 #ifdef CONFIG_PM
 	.suspend = mwifiex_cfg80211_suspend,
 	.resume = mwifiex_cfg80211_resume,
@@ -3720,11 +3925,13 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
 
 #ifdef CONFIG_PM
 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
-	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
+	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT |
+		WIPHY_WOWLAN_NET_DETECT,
 	.n_patterns = MWIFIEX_MEF_MAX_FILTERS,
 	.pattern_min_len = 1,
 	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
 	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
+	.max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS,
 };
 #endif
 
@@ -3829,6 +4036,7 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
 			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
 			WIPHY_FLAG_AP_UAPSD |
+			WIPHY_FLAG_SUPPORTS_SCHED_SCAN |
 			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
 			WIPHY_FLAG_HAS_CHANNEL_SWITCH |
 			WIPHY_FLAG_PS_ON_BY_DEFAULT;
@@ -3847,6 +4055,10 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
 				    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
 
+	wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
+	wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
+	wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH;
+
 	wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
 	wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
 
diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
index cb25aa7e90db..a12adee776c6 100644
--- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
@@ -1657,3 +1657,16 @@ int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
 
 	return 0;
 }
+
+/* This function handles the command response of hs wakeup reason
+ * command.
+ */
+int mwifiex_ret_wakeup_reason(struct mwifiex_private *priv,
+			      struct host_cmd_ds_command *resp,
+			      struct host_cmd_ds_wakeup_reason *wakeup_reason)
+{
+	wakeup_reason->wakeup_reason =
+		resp->params.hs_wakeup_reason.wakeup_reason;
+
+	return 0;
+}
diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c b/drivers/net/wireless/marvell/mwifiex/debugfs.c
index 0b9c580af988..df28836a1d11 100644
--- a/drivers/net/wireless/marvell/mwifiex/debugfs.c
+++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c
@@ -95,8 +95,7 @@ mwifiex_info_read(struct file *file, char __user *ubuf,
 
 	mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
 
-	if (!priv->version_str[0])
-		mwifiex_get_ver_ext(priv);
+	mwifiex_get_ver_ext(priv, 0);
 
 	p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
 	p += sprintf(p, "driver_version = %s", fmt);
@@ -583,6 +582,52 @@ done:
 	return ret;
 }
 
+/* debugfs verext file write handler.
+ * This function is called when the 'verext' file is opened for write
+ */
+static ssize_t
+mwifiex_verext_write(struct file *file, const char __user *ubuf,
+		     size_t count, loff_t *ppos)
+{
+	int ret;
+	u32 versionstrsel;
+	struct mwifiex_private *priv = (void *)file->private_data;
+	char buf[16];
+
+	memset(buf, 0, sizeof(buf));
+
+	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+		return -EFAULT;
+
+	ret = kstrtou32(buf, 10, &versionstrsel);
+	if (ret)
+		return ret;
+
+	priv->versionstrsel = versionstrsel;
+
+	return count;
+}
+
+/* Proc verext file read handler.
+ * This function is called when the 'verext' file is opened for reading
+ * This function can be used read driver exteneed verion string.
+ */
+static ssize_t
+mwifiex_verext_read(struct file *file, char __user *ubuf,
+		    size_t count, loff_t *ppos)
+{
+	struct mwifiex_private *priv =
+		(struct mwifiex_private *)file->private_data;
+	char buf[256];
+	int ret;
+
+	mwifiex_get_ver_ext(priv, priv->versionstrsel);
+	ret = snprintf(buf, sizeof(buf), "version string: %s\n",
+		       priv->version_str);
+
+	return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
+}
+
 /* Proc memrw file write handler.
  * This function is called when the 'memrw' file is opened for writing
  * This function can be used to write to a memory location.
@@ -940,6 +985,7 @@ MWIFIEX_DFS_FILE_OPS(histogram);
 MWIFIEX_DFS_FILE_OPS(debug_mask);
 MWIFIEX_DFS_FILE_OPS(timeshare_coex);
 MWIFIEX_DFS_FILE_WRITE_OPS(reset);
+MWIFIEX_DFS_FILE_OPS(verext);
 
 /*
  * This function creates the debug FS directory structure and the files.
@@ -968,6 +1014,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
 	MWIFIEX_DFS_ADD_FILE(debug_mask);
 	MWIFIEX_DFS_ADD_FILE(timeshare_coex);
 	MWIFIEX_DFS_ADD_FILE(reset);
+	MWIFIEX_DFS_ADD_FILE(verext);
 }
 
 /*
diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
index ced7af2be29a..4af916817bcd 100644
--- a/drivers/net/wireless/marvell/mwifiex/fw.h
+++ b/drivers/net/wireless/marvell/mwifiex/fw.h
@@ -96,7 +96,7 @@ enum KEY_TYPE_ID {
 #define WAPI_KEY_LEN			(WLAN_KEY_LEN_SMS4 + PN_LEN + 2)
 
 #define MAX_POLL_TRIES			100
-#define MAX_FIRMWARE_POLL_TRIES			100
+#define MAX_FIRMWARE_POLL_TRIES			150
 
 #define FIRMWARE_READY_SDIO				0xfedc
 #define FIRMWARE_READY_PCIE				0xfedcba00
@@ -144,6 +144,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define TLV_TYPE_WILDCARDSSID       (PROPRIETARY_TLV_BASE_ID + 18)
 #define TLV_TYPE_TSFTIMESTAMP       (PROPRIETARY_TLV_BASE_ID + 19)
 #define TLV_TYPE_RSSI_HIGH          (PROPRIETARY_TLV_BASE_ID + 22)
+#define TLV_TYPE_BGSCAN_START_LATER (PROPRIETARY_TLV_BASE_ID + 30)
 #define TLV_TYPE_AUTH_TYPE          (PROPRIETARY_TLV_BASE_ID + 31)
 #define TLV_TYPE_STA_MAC_ADDR       (PROPRIETARY_TLV_BASE_ID + 32)
 #define TLV_TYPE_BSSID              (PROPRIETARY_TLV_BASE_ID + 35)
@@ -177,6 +178,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define TLV_TYPE_TX_PAUSE           (PROPRIETARY_TLV_BASE_ID + 148)
 #define TLV_TYPE_COALESCE_RULE      (PROPRIETARY_TLV_BASE_ID + 154)
 #define TLV_TYPE_KEY_PARAM_V2       (PROPRIETARY_TLV_BASE_ID + 156)
+#define TLV_TYPE_REPEAT_COUNT       (PROPRIETARY_TLV_BASE_ID + 176)
 #define TLV_TYPE_MULTI_CHAN_INFO    (PROPRIETARY_TLV_BASE_ID + 183)
 #define TLV_TYPE_MC_GROUP_INFO      (PROPRIETARY_TLV_BASE_ID + 184)
 #define TLV_TYPE_TDLS_IDLE_TIMEOUT  (PROPRIETARY_TLV_BASE_ID + 194)
@@ -331,6 +333,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HostCmd_CMD_802_11_MAC_ADDRESS                0x004D
 #define HostCmd_CMD_802_11D_DOMAIN_INFO               0x005b
 #define HostCmd_CMD_802_11_KEY_MATERIAL               0x005e
+#define HostCmd_CMD_802_11_BG_SCAN_CONFIG             0x006b
 #define HostCmd_CMD_802_11_BG_SCAN_QUERY              0x006c
 #define HostCmd_CMD_WMM_GET_STATUS                    0x0071
 #define HostCmd_CMD_802_11_SUBSCRIBE_EVENT            0x0075
@@ -370,6 +373,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HostCmd_CMD_MGMT_FRAME_REG                    0x010c
 #define HostCmd_CMD_REMAIN_ON_CHAN                    0x010d
 #define HostCmd_CMD_11AC_CFG			      0x0112
+#define HostCmd_CMD_HS_WAKEUP_REASON                  0x0116
 #define HostCmd_CMD_TDLS_CONFIG                       0x0100
 #define HostCmd_CMD_MC_POLICY                         0x0121
 #define HostCmd_CMD_TDLS_OPER                         0x0122
@@ -523,6 +527,7 @@ enum P2P_MODES {
 #define EVENT_CHANNEL_REPORT_RDY        0x00000054
 #define EVENT_TX_DATA_PAUSE             0x00000055
 #define EVENT_EXT_SCAN_REPORT           0x00000058
+#define EVENT_BG_SCAN_STOPPED           0x00000065
 #define EVENT_REMAIN_ON_CHAN_EXPIRED    0x0000005f
 #define EVENT_MULTI_CHAN_INFO           0x0000006a
 #define EVENT_TX_STATUS_REPORT		0x00000074
@@ -539,6 +544,8 @@ enum P2P_MODES {
 
 #define MWIFIEX_MAX_PATTERN_LEN		40
 #define MWIFIEX_MAX_OFFSET_LEN		100
+#define MWIFIEX_MAX_ND_MATCH_SETS	10
+
 #define STACK_NBYTES			100
 #define TYPE_DNUM			1
 #define TYPE_BYTESEQ			2
@@ -601,6 +608,20 @@ struct mwifiex_ie_types_data {
 #define MWIFIEX_RXPD_FLAGS_TDLS_PACKET      0x01
 #define MWIFIEX_TXPD_FLAGS_REQ_TX_STATUS    0x20
 
+enum HS_WAKEUP_REASON {
+	NO_HSWAKEUP_REASON = 0,
+	BCAST_DATA_MATCHED,
+	MCAST_DATA_MATCHED,
+	UCAST_DATA_MATCHED,
+	MASKTABLE_EVENT_MATCHED,
+	NON_MASKABLE_EVENT_MATCHED,
+	NON_MASKABLE_CONDITION_MATCHED,
+	MAGIC_PATTERN_MATCHED,
+	CONTROL_FRAME_MATCHED,
+	MANAGEMENT_FRAME_MATCHED,
+	RESERVED
+};
+
 struct txpd {
 	u8 bss_type;
 	u8 bss_num;
@@ -733,6 +754,21 @@ struct mwifiex_ie_types_num_probes {
 	__le16 num_probes;
 } __packed;
 
+struct mwifiex_ie_types_repeat_count {
+	struct mwifiex_ie_types_header header;
+	__le16 repeat_count;
+} __packed;
+
+struct mwifiex_ie_types_min_rssi_threshold {
+	struct mwifiex_ie_types_header header;
+	__le16 rssi_threshold;
+} __packed;
+
+struct mwifiex_ie_types_bgscan_start_later {
+	struct mwifiex_ie_types_header header;
+	__le16 start_later;
+} __packed;
+
 struct mwifiex_ie_types_scan_chan_gap {
 	struct mwifiex_ie_types_header header;
 	/* time gap in TUs to be used between two consecutive channels scan */
@@ -1425,6 +1461,36 @@ struct mwifiex_user_scan_cfg {
 	u16 scan_chan_gap;
 } __packed;
 
+#define MWIFIEX_BG_SCAN_CHAN_MAX 38
+#define MWIFIEX_BSS_MODE_INFRA 1
+#define MWIFIEX_BGSCAN_ACT_GET     0x0000
+#define MWIFIEX_BGSCAN_ACT_SET     0x0001
+#define MWIFIEX_BGSCAN_ACT_SET_ALL 0xff01
+/** ssid match */
+#define MWIFIEX_BGSCAN_SSID_MATCH          0x0001
+/** ssid match and RSSI exceeded */
+#define MWIFIEX_BGSCAN_SSID_RSSI_MATCH     0x0004
+/**wait for all channel scan to complete to report scan result*/
+#define MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE  0x80000000
+
+struct mwifiex_bg_scan_cfg {
+	u16 action;
+	u8 enable;
+	u8 bss_type;
+	u8 chan_per_scan;
+	u32 scan_interval;
+	u32 report_condition;
+	u8 num_probes;
+	u8 rssi_threshold;
+	u8 snr_threshold;
+	u16 repeat_count;
+	u16 start_later;
+	struct cfg80211_match_set *ssid_list;
+	u8 num_ssids;
+	struct mwifiex_user_scan_chan chan_list[MWIFIEX_BG_SCAN_CHAN_MAX];
+	u16 scan_chan_gap;
+} __packed;
+
 struct ie_body {
 	u8 grp_key_oui[4];
 	u8 ptk_cnt[2];
@@ -1470,6 +1536,20 @@ struct mwifiex_ie_types_bss_scan_info {
 	__le64 tsf;
 } __packed;
 
+struct host_cmd_ds_802_11_bg_scan_config {
+	__le16 action;
+	u8 enable;
+	u8 bss_type;
+	u8 chan_per_scan;
+	u8 reserved;
+	__le16 reserved1;
+	__le32 scan_interval;
+	__le32 reserved2;
+	__le32 report_condition;
+	__le16 reserved3;
+	u8 tlv[0];
+} __packed;
+
 struct host_cmd_ds_802_11_bg_scan_query {
 	u8 flush;
 } __packed;
@@ -2099,6 +2179,10 @@ struct host_cmd_ds_robust_coex {
 	__le16 reserved;
 } __packed;
 
+struct host_cmd_ds_wakeup_reason {
+	u16  wakeup_reason;
+} __packed;
+
 struct host_cmd_ds_command {
 	__le16 command;
 	__le16 size;
@@ -2124,6 +2208,7 @@ struct host_cmd_ds_command {
 		struct host_cmd_ds_802_11_scan scan;
 		struct host_cmd_ds_802_11_scan_ext ext_scan;
 		struct host_cmd_ds_802_11_scan_rsp scan_resp;
+		struct host_cmd_ds_802_11_bg_scan_config bg_scan_config;
 		struct host_cmd_ds_802_11_bg_scan_query bg_scan_query;
 		struct host_cmd_ds_802_11_bg_scan_query_rsp bg_scan_query_resp;
 		struct host_cmd_ds_802_11_associate associate;
@@ -2170,6 +2255,7 @@ struct host_cmd_ds_command {
 		struct host_cmd_sdio_sp_rx_aggr_cfg sdio_rx_aggr_cfg;
 		struct host_cmd_ds_multi_chan_policy mc_policy;
 		struct host_cmd_ds_robust_coex coex;
+		struct host_cmd_ds_wakeup_reason hs_wakeup_reason;
 	} params;
 } __packed;
 
diff --git a/drivers/net/wireless/marvell/mwifiex/init.c b/drivers/net/wireless/marvell/mwifiex/init.c
index 6f7876ec31b7..517653b3adab 100644
--- a/drivers/net/wireless/marvell/mwifiex/init.c
+++ b/drivers/net/wireless/marvell/mwifiex/init.c
@@ -741,8 +741,6 @@ int mwifiex_dnld_fw(struct mwifiex_adapter *adapter,
 	u32 poll_num = 1;
 
 	if (adapter->if_ops.check_fw_status) {
-		adapter->winner = 0;
-
 		/* check if firmware is already running */
 		ret = adapter->if_ops.check_fw_status(adapter, poll_num);
 		if (!ret) {
@@ -750,13 +748,23 @@ int mwifiex_dnld_fw(struct mwifiex_adapter *adapter,
 				    "WLAN FW already running! Skip FW dnld\n");
 			return 0;
 		}
+	}
+
+	/* check if we are the winner for downloading FW */
+	if (adapter->if_ops.check_winner_status) {
+		adapter->winner = 0;
+		ret = adapter->if_ops.check_winner_status(adapter);
 
 		poll_num = MAX_FIRMWARE_POLL_TRIES;
+		if (ret) {
+			mwifiex_dbg(adapter, MSG,
+				    "WLAN read winner status failed!\n");
+			return ret;
+		}
 
-		/* check if we are the winner for downloading FW */
 		if (!adapter->winner) {
 			mwifiex_dbg(adapter, MSG,
-				    "FW already running! Skip FW dnld\n");
+				    "WLAN is not the winner! Skip FW dnld\n");
 			goto poll_fw;
 		}
 	}
diff --git a/drivers/net/wireless/marvell/mwifiex/ioctl.h b/drivers/net/wireless/marvell/mwifiex/ioctl.h
index 4f0174c64946..14cfa37deb00 100644
--- a/drivers/net/wireless/marvell/mwifiex/ioctl.h
+++ b/drivers/net/wireless/marvell/mwifiex/ioctl.h
@@ -271,6 +271,10 @@ struct mwifiex_ds_hs_cfg {
 	u32 gap;
 };
 
+struct mwifiex_ds_wakeup_reason {
+	u16  hs_wakeup_reason;
+};
+
 #define DEEP_SLEEP_ON  1
 #define DEEP_SLEEP_OFF 0
 #define DEEP_SLEEP_IDLE_TIME	100
@@ -414,6 +418,7 @@ struct mwifiex_ds_mef_cfg {
 #define MWIFIEX_VSIE_MASK_SCAN     0x01
 #define MWIFIEX_VSIE_MASK_ASSOC    0x02
 #define MWIFIEX_VSIE_MASK_ADHOC    0x04
+#define MWIFIEX_VSIE_MASK_BGSCAN   0x08
 
 enum {
 	MWIFIEX_FUNC_INIT = 1,
diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
index 79c16de8743e..3cfa94677a8e 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -132,6 +132,13 @@ static int mwifiex_unregister(struct mwifiex_adapter *adapter)
 		}
 	}
 
+	if (adapter->nd_info) {
+		for (i = 0 ; i < adapter->nd_info->n_matches ; i++)
+			kfree(adapter->nd_info->matches[i]);
+		kfree(adapter->nd_info);
+		adapter->nd_info = NULL;
+	}
+
 	vfree(adapter->chan_stats);
 	kfree(adapter);
 	return 0;
@@ -746,6 +753,13 @@ int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
 
 	mwifiex_queue_main_work(priv->adapter);
 
+	if (priv->sched_scanning) {
+		mwifiex_dbg(priv->adapter, INFO,
+			    "aborting bgscan on ndo_stop\n");
+		mwifiex_stop_bg_scan(priv);
+		cfg80211_sched_scan_stopped(priv->wdev.wiphy);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
index 2f7f478ce04b..c755be54cc83 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -198,6 +198,11 @@ do {								\
 			       buf, len, false);		\
 } while (0)
 
+/** Min BGSCAN interval 15 second */
+#define MWIFIEX_BGSCAN_INTERVAL 15000
+/** default repeat count */
+#define MWIFIEX_BGSCAN_REPEAT_COUNT 6
+
 struct mwifiex_dbg {
 	u32 num_cmd_host_to_card_failure;
 	u32 num_cmd_sleep_cfm_host_to_card_failure;
@@ -616,6 +621,7 @@ struct mwifiex_private {
 	spinlock_t curr_bcn_buf_lock;
 	struct wireless_dev wdev;
 	struct mwifiex_chan_freq_power cfp;
+	u32 versionstrsel;
 	char version_str[128];
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *dfs_dev_dir;
@@ -640,6 +646,7 @@ struct mwifiex_private {
 	u32 mgmt_frame_mask;
 	struct mwifiex_roc_cfg roc_cfg;
 	bool scan_aborting;
+	u8 sched_scanning;
 	u8 csa_chan;
 	unsigned long csa_expire_time;
 	u8 del_list_idx;
@@ -791,6 +798,7 @@ struct mwifiex_if_ops {
 	int (*init_if) (struct mwifiex_adapter *);
 	void (*cleanup_if) (struct mwifiex_adapter *);
 	int (*check_fw_status) (struct mwifiex_adapter *, u32);
+	int (*check_winner_status)(struct mwifiex_adapter *);
 	int (*prog_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *);
 	int (*register_dev) (struct mwifiex_adapter *);
 	void (*unregister_dev) (struct mwifiex_adapter *);
@@ -994,6 +1002,7 @@ struct mwifiex_adapter {
 	u8 active_scan_triggered;
 	bool usb_mc_status;
 	bool usb_mc_setup;
+	struct cfg80211_wowlan_nd_info *nd_info;
 };
 
 void mwifiex_process_tx_queue(struct mwifiex_adapter *adapter);
@@ -1196,6 +1205,10 @@ int mwifiex_ret_802_11_scan_ext(struct mwifiex_private *priv,
 				struct host_cmd_ds_command *resp);
 int mwifiex_handle_event_ext_scan_report(struct mwifiex_private *priv,
 					 void *buf);
+int mwifiex_cmd_802_11_bg_scan_config(struct mwifiex_private *priv,
+				      struct host_cmd_ds_command *cmd,
+				      void *data_buf);
+int mwifiex_stop_bg_scan(struct mwifiex_private *priv);
 
 /*
  * This function checks if the queuing is RA based or not.
@@ -1417,7 +1430,7 @@ int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
 
 int mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len);
 
-int mwifiex_get_ver_ext(struct mwifiex_private *priv);
+int mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel);
 
 int mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
 			       struct ieee80211_channel *chan,
@@ -1586,6 +1599,12 @@ void mwifiex_drv_info_dump(struct mwifiex_adapter *adapter);
 void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter);
 void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags);
 void mwifiex_queue_main_work(struct mwifiex_adapter *adapter);
+int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
+			      int cmd_type,
+			      struct mwifiex_ds_wakeup_reason *wakeup_reason);
+int mwifiex_ret_wakeup_reason(struct mwifiex_private *priv,
+			      struct host_cmd_ds_command *resp,
+			      struct host_cmd_ds_wakeup_reason *wakeup_reason);
 void mwifiex_coex_ampdu_rxwinsize(struct mwifiex_adapter *adapter);
 void mwifiex_11n_delba(struct mwifiex_private *priv, int tid);
 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy);
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 6d0dc40e20e5..918e04954afe 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -2007,14 +2007,12 @@ done:
 
 /*
  * This function checks the firmware status in card.
- *
- * The winner interface is also determined by this function.
  */
 static int
 mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
 {
 	int ret = 0;
-	u32 firmware_stat, winner_status;
+	u32 firmware_stat;
 	struct pcie_service_card *card = adapter->card;
 	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
 	u32 tries;
@@ -2054,19 +2052,28 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
 		}
 	}
 
-	if (ret) {
-		if (mwifiex_read_reg(adapter, reg->fw_status,
-				     &winner_status))
-			ret = -1;
-		else if (!winner_status) {
-			mwifiex_dbg(adapter, INFO,
-				    "PCI-E is the winner\n");
-			adapter->winner = 1;
-		} else {
-			mwifiex_dbg(adapter, ERROR,
-				    "PCI-E is not the winner <%#x,%d>, exit dnld\n",
-				    ret, adapter->winner);
-		}
+	return ret;
+}
+
+/* This function checks if WLAN is the winner.
+ */
+static int
+mwifiex_check_winner_status(struct mwifiex_adapter *adapter)
+{
+	u32 winner = 0;
+	int ret = 0;
+	struct pcie_service_card *card = adapter->card;
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	if (mwifiex_read_reg(adapter, reg->fw_status, &winner)) {
+		ret = -1;
+	} else if (!winner) {
+		mwifiex_dbg(adapter, INFO, "PCI-E is the winner\n");
+		adapter->winner = 1;
+	} else {
+		mwifiex_dbg(adapter, ERROR,
+			    "PCI-E is not the winner <%#x,%d>, exit dnld\n",
+			    ret, adapter->winner);
 	}
 
 	return ret;
@@ -2075,20 +2082,28 @@ mwifiex_check_fw_status(struct mwifiex_adapter *adapter, u32 poll_num)
 /*
  * This function reads the interrupt status from card.
  */
-static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
+static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter,
+				     int msg_id)
 {
 	u32 pcie_ireg;
 	unsigned long flags;
+	struct pcie_service_card *card = adapter->card;
 
 	if (!mwifiex_pcie_ok_to_access_hw(adapter))
 		return;
 
-	if (mwifiex_read_reg(adapter, PCIE_HOST_INT_STATUS, &pcie_ireg)) {
-		mwifiex_dbg(adapter, ERROR, "Read register failed\n");
-		return;
-	}
+	if (card->msix_enable && msg_id >= 0) {
+		pcie_ireg = BIT(msg_id);
+	} else {
+		if (mwifiex_read_reg(adapter, PCIE_HOST_INT_STATUS,
+				     &pcie_ireg)) {
+			mwifiex_dbg(adapter, ERROR, "Read register failed\n");
+			return;
+		}
+
+		if ((pcie_ireg == 0xFFFFFFFF) || !pcie_ireg)
+			return;
 
-	if ((pcie_ireg != 0xFFFFFFFF) && (pcie_ireg)) {
 
 		mwifiex_pcie_disable_host_int(adapter);
 
@@ -2099,21 +2114,24 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
 				    "Write register failed\n");
 			return;
 		}
-		spin_lock_irqsave(&adapter->int_lock, flags);
-		adapter->int_status |= pcie_ireg;
-		spin_unlock_irqrestore(&adapter->int_lock, flags);
-
-		if (!adapter->pps_uapsd_mode &&
-		    adapter->ps_state == PS_STATE_SLEEP &&
-		    mwifiex_pcie_ok_to_access_hw(adapter)) {
-				/* Potentially for PCIe we could get other
-				 * interrupts like shared. Don't change power
-				 * state until cookie is set */
-				adapter->ps_state = PS_STATE_AWAKE;
-				adapter->pm_wakeup_fw_try = false;
-				del_timer(&adapter->wakeup_timer);
-		}
 	}
+
+	if (!adapter->pps_uapsd_mode &&
+	    adapter->ps_state == PS_STATE_SLEEP &&
+	    mwifiex_pcie_ok_to_access_hw(adapter)) {
+		/* Potentially for PCIe we could get other
+		 * interrupts like shared. Don't change power
+		 * state until cookie is set
+		 */
+		adapter->ps_state = PS_STATE_AWAKE;
+		adapter->pm_wakeup_fw_try = false;
+		del_timer(&adapter->wakeup_timer);
+	}
+
+	spin_lock_irqsave(&adapter->int_lock, flags);
+	adapter->int_status |= pcie_ireg;
+	spin_unlock_irqrestore(&adapter->int_lock, flags);
+	mwifiex_dbg(adapter, INTR, "ireg: 0x%08x\n", pcie_ireg);
 }
 
 /*
@@ -2124,7 +2142,8 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
  */
 static irqreturn_t mwifiex_pcie_interrupt(int irq, void *context)
 {
-	struct pci_dev *pdev = (struct pci_dev *)context;
+	struct mwifiex_msix_context *ctx = context;
+	struct pci_dev *pdev = ctx->dev;
 	struct pcie_service_card *card;
 	struct mwifiex_adapter *adapter;
 
@@ -2144,7 +2163,11 @@ static irqreturn_t mwifiex_pcie_interrupt(int irq, void *context)
 	if (adapter->surprise_removed)
 		goto exit;
 
-	mwifiex_interrupt_status(adapter);
+	if (card->msix_enable)
+		mwifiex_interrupt_status(adapter, ctx->msg_id);
+	else
+		mwifiex_interrupt_status(adapter, -1);
+
 	mwifiex_queue_main_work(adapter);
 
 exit:
@@ -2164,7 +2187,7 @@ exit:
  * In case of Rx packets received, the packets are uploaded from card to
  * host and processed accordingly.
  */
-static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
+static int mwifiex_process_pcie_int(struct mwifiex_adapter *adapter)
 {
 	int ret;
 	u32 pcie_ireg;
@@ -2244,6 +2267,69 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	return 0;
 }
 
+static int mwifiex_process_msix_int(struct mwifiex_adapter *adapter)
+{
+	int ret;
+	u32 pcie_ireg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->int_lock, flags);
+	/* Clear out unused interrupts */
+	pcie_ireg = adapter->int_status;
+	adapter->int_status = 0;
+	spin_unlock_irqrestore(&adapter->int_lock, flags);
+
+	if (pcie_ireg & HOST_INTR_DNLD_DONE) {
+		mwifiex_dbg(adapter, INTR,
+			    "info: TX DNLD Done\n");
+		ret = mwifiex_pcie_send_data_complete(adapter);
+		if (ret)
+			return ret;
+	}
+	if (pcie_ireg & HOST_INTR_UPLD_RDY) {
+		mwifiex_dbg(adapter, INTR,
+			    "info: Rx DATA\n");
+		ret = mwifiex_pcie_process_recv_data(adapter);
+		if (ret)
+			return ret;
+	}
+	if (pcie_ireg & HOST_INTR_EVENT_RDY) {
+		mwifiex_dbg(adapter, INTR,
+			    "info: Rx EVENT\n");
+		ret = mwifiex_pcie_process_event_ready(adapter);
+		if (ret)
+			return ret;
+	}
+
+	if (pcie_ireg & HOST_INTR_CMD_DONE) {
+		if (adapter->cmd_sent) {
+			mwifiex_dbg(adapter, INTR,
+				    "info: CMD sent Interrupt\n");
+			adapter->cmd_sent = false;
+		}
+		/* Handle command response */
+		ret = mwifiex_pcie_process_cmd_complete(adapter);
+		if (ret)
+			return ret;
+	}
+
+	mwifiex_dbg(adapter, INTR,
+		    "info: cmd_sent=%d data_sent=%d\n",
+		    adapter->cmd_sent, adapter->data_sent);
+
+	return 0;
+}
+
+static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
+{
+	struct pcie_service_card *card = adapter->card;
+
+	if (card->msix_enable)
+		return mwifiex_process_msix_int(adapter);
+	else
+		return mwifiex_process_pcie_int(adapter);
+}
+
 /*
  * This function downloads data from driver to card.
  *
@@ -2595,10 +2681,43 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
 
 static int mwifiex_pcie_request_irq(struct mwifiex_adapter *adapter)
 {
-	int ret;
+	int ret, i, j;
 	struct pcie_service_card *card = adapter->card;
 	struct pci_dev *pdev = card->dev;
 
+	if (card->pcie.reg->msix_support) {
+		for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++)
+			card->msix_entries[i].entry = i;
+		ret = pci_enable_msix_exact(pdev, card->msix_entries,
+					    MWIFIEX_NUM_MSIX_VECTORS);
+		if (!ret) {
+			for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++) {
+				card->msix_ctx[i].dev = pdev;
+				card->msix_ctx[i].msg_id = i;
+
+				ret = request_irq(card->msix_entries[i].vector,
+						  mwifiex_pcie_interrupt, 0,
+						  "MWIFIEX_PCIE_MSIX",
+						  &card->msix_ctx[i]);
+				if (ret)
+					break;
+			}
+
+			if (ret) {
+				mwifiex_dbg(adapter, INFO, "request_irq fail: %d\n",
+					    ret);
+				for (j = 0; j < i; j++)
+					free_irq(card->msix_entries[j].vector,
+						 &card->msix_ctx[i]);
+				pci_disable_msix(pdev);
+			} else {
+				mwifiex_dbg(adapter, MSG, "MSIx enabled!");
+				card->msix_enable = 1;
+				return 0;
+			}
+		}
+	}
+
 	if (pci_enable_msi(pdev) != 0)
 		pci_disable_msi(pdev);
 	else
@@ -2606,8 +2725,10 @@ static int mwifiex_pcie_request_irq(struct mwifiex_adapter *adapter)
 
 	mwifiex_dbg(adapter, INFO, "msi_enable = %d\n", card->msi_enable);
 
+	card->share_irq_ctx.dev = pdev;
+	card->share_irq_ctx.msg_id = -1;
 	ret = request_irq(pdev->irq, mwifiex_pcie_interrupt, IRQF_SHARED,
-			  "MRVL_PCIE", pdev);
+			  "MRVL_PCIE", &card->share_irq_ctx);
 	if (ret) {
 		pr_err("request_irq failed: ret=%d\n", ret);
 		adapter->card = NULL;
@@ -2653,11 +2774,28 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
 {
 	struct pcie_service_card *card = adapter->card;
 	const struct mwifiex_pcie_card_reg *reg;
+	struct pci_dev *pdev = card->dev;
+	int i;
 
 	if (card) {
-		mwifiex_dbg(adapter, INFO,
-			    "%s(): calling free_irq()\n", __func__);
-		free_irq(card->dev->irq, card->dev);
+		if (card->msix_enable) {
+			for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++)
+				synchronize_irq(card->msix_entries[i].vector);
+
+			for (i = 0; i < MWIFIEX_NUM_MSIX_VECTORS; i++)
+				free_irq(card->msix_entries[i].vector,
+					 &card->msix_ctx[i]);
+
+			card->msix_enable = 0;
+			pci_disable_msix(pdev);
+	       } else {
+			mwifiex_dbg(adapter, INFO,
+				    "%s(): calling free_irq()\n", __func__);
+		       free_irq(card->dev->irq, &card->share_irq_ctx);
+
+			if (card->msi_enable)
+				pci_disable_msi(pdev);
+	       }
 
 		reg = card->pcie.reg;
 		if (reg->sleep_cookie)
@@ -2675,6 +2813,7 @@ static struct mwifiex_if_ops pcie_ops = {
 	.init_if =			mwifiex_pcie_init,
 	.cleanup_if =			mwifiex_pcie_cleanup,
 	.check_fw_status =		mwifiex_check_fw_status,
+	.check_winner_status =          mwifiex_check_winner_status,
 	.prog_fw =			mwifiex_prog_fw_w_helper,
 	.register_dev =			mwifiex_register_dev,
 	.unregister_dev =		mwifiex_unregister_dev,
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.h b/drivers/net/wireless/marvell/mwifiex/pcie.h
index 6fc28737b576..9700ac355e55 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.h
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.h
@@ -135,6 +135,7 @@ struct mwifiex_pcie_card_reg {
 	u16 fw_dump_ctrl;
 	u16 fw_dump_start;
 	u16 fw_dump_end;
+	u8 msix_support;
 };
 
 static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
@@ -166,6 +167,7 @@ static const struct mwifiex_pcie_card_reg mwifiex_reg_8766 = {
 	.ring_tx_start_ptr = 0,
 	.pfu_enabled = 0,
 	.sleep_cookie = 1,
+	.msix_support = 0,
 };
 
 static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
@@ -200,6 +202,7 @@ static const struct mwifiex_pcie_card_reg mwifiex_reg_8897 = {
 	.fw_dump_ctrl = 0xcf4,
 	.fw_dump_start = 0xcf8,
 	.fw_dump_end = 0xcff,
+	.msix_support = 0,
 };
 
 static const struct mwifiex_pcie_card_reg mwifiex_reg_8997 = {
@@ -231,6 +234,7 @@ static const struct mwifiex_pcie_card_reg mwifiex_reg_8997 = {
 	.ring_tx_start_ptr = MWIFIEX_BD_FLAG_TX_START_PTR,
 	.pfu_enabled = 1,
 	.sleep_cookie = 0,
+	.msix_support = 1,
 };
 
 struct mwifiex_pcie_device {
@@ -290,6 +294,13 @@ struct mwifiex_pfu_buf_desc {
 	u32 reserved;
 } __packed;
 
+#define MWIFIEX_NUM_MSIX_VECTORS   4
+
+struct mwifiex_msix_context {
+	struct pci_dev *dev;
+	u16 msg_id;
+};
+
 struct pcie_service_card {
 	struct pci_dev *dev;
 	struct mwifiex_adapter *adapter;
@@ -327,6 +338,12 @@ struct pcie_service_card {
 	void __iomem *pci_mmap;
 	void __iomem *pci_mmap1;
 	int msi_enable;
+	int msix_enable;
+#ifdef CONFIG_PCI
+	struct msix_entry msix_entries[MWIFIEX_NUM_MSIX_VECTORS];
+#endif
+	struct mwifiex_msix_context msix_ctx[MWIFIEX_NUM_MSIX_VECTORS];
+	struct mwifiex_msix_context share_irq_ctx;
 };
 
 static inline int
diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c
index c20017ced566..fc8d8ca67453 100644
--- a/drivers/net/wireless/marvell/mwifiex/scan.c
+++ b/drivers/net/wireless/marvell/mwifiex/scan.c
@@ -547,6 +547,61 @@ mwifiex_scan_create_channel_list(struct mwifiex_private *priv,
 	return chan_idx;
 }
 
+/* This function creates a channel list tlv for bgscan config, based
+ * on region/band information.
+ */
+static int
+mwifiex_bgscan_create_channel_list(struct mwifiex_private *priv,
+				   const struct mwifiex_bg_scan_cfg
+						*bgscan_cfg_in,
+				   struct mwifiex_chan_scan_param_set
+						*scan_chan_list)
+{
+	enum ieee80211_band band;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *ch;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	int chan_idx = 0, i;
+
+	for (band = 0; (band < IEEE80211_NUM_BANDS); band++) {
+		if (!priv->wdev.wiphy->bands[band])
+			continue;
+
+		sband = priv->wdev.wiphy->bands[band];
+
+		for (i = 0; (i < sband->n_channels) ; i++) {
+			ch = &sband->channels[i];
+			if (ch->flags & IEEE80211_CHAN_DISABLED)
+				continue;
+			scan_chan_list[chan_idx].radio_type = band;
+
+			if (bgscan_cfg_in->chan_list[0].scan_time)
+				scan_chan_list[chan_idx].max_scan_time =
+					cpu_to_le16((u16)bgscan_cfg_in->
+					chan_list[0].scan_time);
+			else if (ch->flags & IEEE80211_CHAN_NO_IR)
+				scan_chan_list[chan_idx].max_scan_time =
+					cpu_to_le16(adapter->passive_scan_time);
+			else
+				scan_chan_list[chan_idx].max_scan_time =
+					cpu_to_le16(adapter->
+						    specific_scan_time);
+
+			if (ch->flags & IEEE80211_CHAN_NO_IR)
+				scan_chan_list[chan_idx].chan_scan_mode_bitmap
+					|= MWIFIEX_PASSIVE_SCAN;
+			else
+				scan_chan_list[chan_idx].chan_scan_mode_bitmap
+					&= ~MWIFIEX_PASSIVE_SCAN;
+
+			scan_chan_list[chan_idx].chan_number =
+							(u32)ch->hw_value;
+			chan_idx++;
+		}
+	}
+	return chan_idx;
+}
+
 /* This function appends rate TLV to scan config command. */
 static int
 mwifiex_append_rate_tlv(struct mwifiex_private *priv,
@@ -2037,6 +2092,8 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 	u8 is_bgscan_resp;
 	__le64 fw_tsf = 0;
 	u8 *radio_type;
+	struct cfg80211_wowlan_nd_match *pmatch;
+	struct cfg80211_sched_scan_request *nd_config = NULL;
 
 	is_bgscan_resp = (le16_to_cpu(resp->command)
 			  == HostCmd_CMD_802_11_BG_SCAN_QUERY);
@@ -2099,6 +2156,21 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 					     (struct mwifiex_ie_types_data **)
 					     &chan_band_tlv);
 
+#ifdef CONFIG_PM
+	if (priv->wdev.wiphy->wowlan_config)
+		nd_config = priv->wdev.wiphy->wowlan_config->nd_config;
+#endif
+
+	if (nd_config) {
+		adapter->nd_info =
+			kzalloc(sizeof(struct cfg80211_wowlan_nd_match) +
+				sizeof(struct cfg80211_wowlan_nd_match *) *
+				scan_rsp->number_of_sets, GFP_ATOMIC);
+
+		if (adapter->nd_info)
+			adapter->nd_info->n_matches = scan_rsp->number_of_sets;
+	}
+
 	for (idx = 0; idx < scan_rsp->number_of_sets && bytes_left; idx++) {
 		/*
 		 * If the TSF TLV was appended to the scan results, save this
@@ -2117,6 +2189,23 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 			radio_type = NULL;
 		}
 
+		if (chan_band_tlv && adapter->nd_info) {
+			adapter->nd_info->matches[idx] =
+				kzalloc(sizeof(*pmatch) +
+				sizeof(u32), GFP_ATOMIC);
+
+			pmatch = adapter->nd_info->matches[idx];
+
+			if (!pmatch) {
+				memset(pmatch, 0, sizeof(*pmatch));
+				if (chan_band_tlv) {
+					pmatch->n_channels = 1;
+					pmatch->channels[0] =
+						chan_band->chan_number;
+				}
+			}
+		}
+
 		ret = mwifiex_parse_single_response_buf(priv, &bss_info,
 							&bytes_left,
 							le64_to_cpu(fw_tsf),
@@ -2155,6 +2244,227 @@ int mwifiex_cmd_802_11_scan_ext(struct mwifiex_private *priv,
 	return 0;
 }
 
+/* This function prepares an background scan config command to be sent
+ * to the firmware
+ */
+int mwifiex_cmd_802_11_bg_scan_config(struct mwifiex_private *priv,
+				      struct host_cmd_ds_command *cmd,
+				      void *data_buf)
+{
+	struct host_cmd_ds_802_11_bg_scan_config *bgscan_config =
+					&cmd->params.bg_scan_config;
+	struct mwifiex_bg_scan_cfg *bgscan_cfg_in = data_buf;
+	u8 *tlv_pos = bgscan_config->tlv;
+	u8 num_probes;
+	u32 ssid_len, chan_idx, scan_type, scan_dur, chan_num;
+	int i;
+	struct mwifiex_ie_types_num_probes *num_probes_tlv;
+	struct mwifiex_ie_types_repeat_count *repeat_count_tlv;
+	struct mwifiex_ie_types_min_rssi_threshold *rssi_threshold_tlv;
+	struct mwifiex_ie_types_bgscan_start_later *start_later_tlv;
+	struct mwifiex_ie_types_wildcard_ssid_params *wildcard_ssid_tlv;
+	struct mwifiex_ie_types_chan_list_param_set *chan_list_tlv;
+	struct mwifiex_chan_scan_param_set *temp_chan;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_802_11_BG_SCAN_CONFIG);
+	cmd->size = cpu_to_le16(sizeof(*bgscan_config) + S_DS_GEN);
+
+	bgscan_config->action = cpu_to_le16(bgscan_cfg_in->action);
+	bgscan_config->enable = bgscan_cfg_in->enable;
+	bgscan_config->bss_type = bgscan_cfg_in->bss_type;
+	bgscan_config->scan_interval =
+		cpu_to_le32(bgscan_cfg_in->scan_interval);
+	bgscan_config->report_condition =
+		cpu_to_le32(bgscan_cfg_in->report_condition);
+
+	/*  stop sched scan  */
+	if (!bgscan_config->enable)
+		return 0;
+
+	bgscan_config->chan_per_scan = bgscan_cfg_in->chan_per_scan;
+
+	num_probes = (bgscan_cfg_in->num_probes ? bgscan_cfg_in->
+		      num_probes : priv->adapter->scan_probes);
+
+	if (num_probes) {
+		num_probes_tlv = (struct mwifiex_ie_types_num_probes *)tlv_pos;
+		num_probes_tlv->header.type = cpu_to_le16(TLV_TYPE_NUMPROBES);
+		num_probes_tlv->header.len =
+			cpu_to_le16(sizeof(num_probes_tlv->num_probes));
+		num_probes_tlv->num_probes = cpu_to_le16((u16)num_probes);
+
+		tlv_pos += sizeof(num_probes_tlv->header) +
+			le16_to_cpu(num_probes_tlv->header.len);
+	}
+
+	if (bgscan_cfg_in->repeat_count) {
+		repeat_count_tlv =
+			(struct mwifiex_ie_types_repeat_count *)tlv_pos;
+		repeat_count_tlv->header.type =
+			cpu_to_le16(TLV_TYPE_REPEAT_COUNT);
+		repeat_count_tlv->header.len =
+			cpu_to_le16(sizeof(repeat_count_tlv->repeat_count));
+		repeat_count_tlv->repeat_count =
+			cpu_to_le16(bgscan_cfg_in->repeat_count);
+
+		tlv_pos += sizeof(repeat_count_tlv->header) +
+			le16_to_cpu(repeat_count_tlv->header.len);
+	}
+
+	if (bgscan_cfg_in->rssi_threshold) {
+		rssi_threshold_tlv =
+			(struct mwifiex_ie_types_min_rssi_threshold *)tlv_pos;
+		rssi_threshold_tlv->header.type =
+			cpu_to_le16(TLV_TYPE_RSSI_LOW);
+		rssi_threshold_tlv->header.len =
+			cpu_to_le16(sizeof(rssi_threshold_tlv->rssi_threshold));
+		rssi_threshold_tlv->rssi_threshold =
+			cpu_to_le16(bgscan_cfg_in->rssi_threshold);
+
+		tlv_pos += sizeof(rssi_threshold_tlv->header) +
+			le16_to_cpu(rssi_threshold_tlv->header.len);
+	}
+
+	for (i = 0; i < bgscan_cfg_in->num_ssids; i++) {
+		ssid_len = bgscan_cfg_in->ssid_list[i].ssid.ssid_len;
+
+		wildcard_ssid_tlv =
+			(struct mwifiex_ie_types_wildcard_ssid_params *)tlv_pos;
+		wildcard_ssid_tlv->header.type =
+				cpu_to_le16(TLV_TYPE_WILDCARDSSID);
+		wildcard_ssid_tlv->header.len = cpu_to_le16(
+				(u16)(ssid_len + sizeof(wildcard_ssid_tlv->
+							 max_ssid_length)));
+
+		/* max_ssid_length = 0 tells firmware to perform
+		 * specific scan for the SSID filled, whereas
+		 * max_ssid_length = IEEE80211_MAX_SSID_LEN is for
+		 * wildcard scan.
+		 */
+		if (ssid_len)
+			wildcard_ssid_tlv->max_ssid_length = 0;
+		else
+			wildcard_ssid_tlv->max_ssid_length =
+						IEEE80211_MAX_SSID_LEN;
+
+		memcpy(wildcard_ssid_tlv->ssid,
+		       bgscan_cfg_in->ssid_list[i].ssid.ssid, ssid_len);
+
+		tlv_pos += (sizeof(wildcard_ssid_tlv->header)
+				+ le16_to_cpu(wildcard_ssid_tlv->header.len));
+	}
+
+	chan_list_tlv = (struct mwifiex_ie_types_chan_list_param_set *)tlv_pos;
+
+	if (bgscan_cfg_in->chan_list[0].chan_number) {
+		dev_dbg(priv->adapter->dev, "info: bgscan: Using supplied channel list\n");
+
+		chan_list_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
+
+		for (chan_idx = 0;
+		     chan_idx < MWIFIEX_BG_SCAN_CHAN_MAX &&
+		     bgscan_cfg_in->chan_list[chan_idx].chan_number;
+		     chan_idx++) {
+			temp_chan = chan_list_tlv->chan_scan_param + chan_idx;
+
+			/* Increment the TLV header length by size appended */
+			le16_add_cpu(&chan_list_tlv->header.len,
+				     sizeof(chan_list_tlv->chan_scan_param));
+
+			temp_chan->chan_number =
+				bgscan_cfg_in->chan_list[chan_idx].chan_number;
+			temp_chan->radio_type =
+				bgscan_cfg_in->chan_list[chan_idx].radio_type;
+
+			scan_type =
+				bgscan_cfg_in->chan_list[chan_idx].scan_type;
+
+			if (scan_type == MWIFIEX_SCAN_TYPE_PASSIVE)
+				temp_chan->chan_scan_mode_bitmap
+					|= MWIFIEX_PASSIVE_SCAN;
+			else
+				temp_chan->chan_scan_mode_bitmap
+					&= ~MWIFIEX_PASSIVE_SCAN;
+
+			if (bgscan_cfg_in->chan_list[chan_idx].scan_time) {
+				scan_dur = (u16)bgscan_cfg_in->
+					chan_list[chan_idx].scan_time;
+			} else {
+				scan_dur = (scan_type ==
+					    MWIFIEX_SCAN_TYPE_PASSIVE) ?
+					    priv->adapter->passive_scan_time :
+					    priv->adapter->specific_scan_time;
+			}
+
+			temp_chan->min_scan_time = cpu_to_le16(scan_dur);
+			temp_chan->max_scan_time = cpu_to_le16(scan_dur);
+		}
+	} else {
+		dev_dbg(priv->adapter->dev,
+			"info: bgscan: Creating full region channel list\n");
+		chan_num =
+			mwifiex_bgscan_create_channel_list(priv, bgscan_cfg_in,
+							   chan_list_tlv->
+							   chan_scan_param);
+		le16_add_cpu(&chan_list_tlv->header.len,
+			     chan_num *
+			     sizeof(chan_list_tlv->chan_scan_param[0]));
+	}
+
+	tlv_pos += (sizeof(chan_list_tlv->header)
+			+ le16_to_cpu(chan_list_tlv->header.len));
+
+	if (bgscan_cfg_in->start_later) {
+		start_later_tlv =
+			(struct mwifiex_ie_types_bgscan_start_later *)tlv_pos;
+		start_later_tlv->header.type =
+			cpu_to_le16(TLV_TYPE_BGSCAN_START_LATER);
+		start_later_tlv->header.len =
+			cpu_to_le16(sizeof(start_later_tlv->start_later));
+		start_later_tlv->start_later =
+			cpu_to_le16(bgscan_cfg_in->start_later);
+
+		tlv_pos += sizeof(start_later_tlv->header) +
+			le16_to_cpu(start_later_tlv->header.len);
+	}
+
+	/* Append vendor specific IE TLV */
+	mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_BGSCAN, &tlv_pos);
+
+	le16_add_cpu(&cmd->size, tlv_pos - bgscan_config->tlv);
+
+	return 0;
+}
+
+int mwifiex_stop_bg_scan(struct mwifiex_private *priv)
+{
+	struct mwifiex_bg_scan_cfg *bgscan_cfg;
+
+	if (!priv->sched_scanning) {
+		dev_dbg(priv->adapter->dev, "bgscan already stopped!\n");
+		return 0;
+	}
+
+	bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
+	if (!bgscan_cfg)
+		return -ENOMEM;
+
+	bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
+	bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
+	bgscan_cfg->enable = false;
+
+	if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
+			     HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
+		kfree(bgscan_cfg);
+		return -EFAULT;
+	}
+
+	kfree(bgscan_cfg);
+	priv->sched_scanning = false;
+
+	return 0;
+}
+
 static void
 mwifiex_update_chan_statistics(struct mwifiex_private *priv,
 			       struct mwifiex_ietypes_chanstats *tlv_stat)
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index 4c8cae682c89..abf15dbdfe08 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -181,7 +181,7 @@ static int mwifiex_sdio_resume(struct device *dev)
 
 	/* Disable Host Sleep */
 	mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
-			  MWIFIEX_ASYNC_CMD);
+			  MWIFIEX_SYNC_CMD);
 
 	return 0;
 }
@@ -1039,19 +1039,14 @@ done:
 
 /*
  * This function checks the firmware status in card.
- *
- * The winner interface is also determined by this function.
  */
 static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 				   u32 poll_num)
 {
-	struct sdio_mmc_card *card = adapter->card;
 	int ret = 0;
 	u16 firmware_stat;
 	u32 tries;
-	u8 winner_status;
 
-	/* Wait for firmware initialization event */
 	for (tries = 0; tries < poll_num; tries++) {
 		ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
 		if (ret)
@@ -1065,16 +1060,25 @@ static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 		}
 	}
 
-	if (ret) {
-		if (mwifiex_read_reg
-		    (adapter, card->reg->status_reg_0, &winner_status))
-			winner_status = 0;
+	return ret;
+}
+
+/* This function checks if WLAN is the winner.
+ */
+static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter)
+{
+	int ret = 0;
+	u8 winner = 0;
+	struct sdio_mmc_card *card = adapter->card;
+
+	if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner))
+		return -1;
+
+	if (winner)
+		adapter->winner = 0;
+	else
+		adapter->winner = 1;
 
-		if (winner_status)
-			adapter->winner = 0;
-		else
-			adapter->winner = 1;
-	}
 	return ret;
 }
 
@@ -2620,6 +2624,7 @@ static struct mwifiex_if_ops sdio_ops = {
 	.init_if = mwifiex_init_sdio,
 	.cleanup_if = mwifiex_cleanup_sdio,
 	.check_fw_status = mwifiex_check_fw_status,
+	.check_winner_status = mwifiex_check_winner_status,
 	.prog_fw = mwifiex_prog_fw_w_helper,
 	.register_dev = mwifiex_register_dev,
 	.unregister_dev = mwifiex_unregister_dev,
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
index e486867a4c67..30f152601c57 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
@@ -1813,6 +1813,22 @@ static int mwifiex_cmd_sdio_rx_aggr_cfg(struct host_cmd_ds_command *cmd,
 	return 0;
 }
 
+/* This function prepares command to get HS wakeup reason.
+ *
+ * Preparation includes -
+ *      - Setting command ID, action and proper size
+ *      - Ensuring correct endian-ness
+ */
+static int mwifiex_cmd_get_wakeup_reason(struct mwifiex_private *priv,
+					 struct host_cmd_ds_command *cmd)
+{
+	cmd->command = cpu_to_le16(HostCmd_CMD_HS_WAKEUP_REASON);
+	cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_wakeup_reason) +
+				S_DS_GEN);
+
+	return 0;
+}
+
 /*
  * This function prepares the commands before sending them to the firmware.
  *
@@ -1873,6 +1889,10 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 	case HostCmd_CMD_802_11_SCAN:
 		ret = mwifiex_cmd_802_11_scan(cmd_ptr, data_buf);
 		break;
+	case HostCmd_CMD_802_11_BG_SCAN_CONFIG:
+		ret = mwifiex_cmd_802_11_bg_scan_config(priv, cmd_ptr,
+							data_buf);
+		break;
 	case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 		ret = mwifiex_cmd_802_11_bg_scan_query(cmd_ptr);
 		break;
@@ -2063,6 +2083,9 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 		ret = mwifiex_cmd_sdio_rx_aggr_cfg(cmd_ptr, cmd_action,
 						   data_buf);
 		break;
+	case HostCmd_CMD_HS_WAKEUP_REASON:
+		ret = mwifiex_cmd_get_wakeup_reason(priv, cmd_ptr);
+		break;
 	case HostCmd_CMD_MC_POLICY:
 		ret = mwifiex_cmd_set_mc_policy(priv, cmd_ptr, cmd_action,
 						data_buf);
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
index 9ac7aa2431b4..d96523e10eb4 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c
@@ -1076,9 +1076,12 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 		break;
 	case HostCmd_CMD_802_11_BG_SCAN_QUERY:
 		ret = mwifiex_ret_802_11_scan(priv, resp);
+		cfg80211_sched_scan_results(priv->wdev.wiphy);
 		mwifiex_dbg(adapter, CMD,
 			    "info: CMD_RESP: BG_SCAN result is ready!\n");
 		break;
+	case HostCmd_CMD_802_11_BG_SCAN_CONFIG:
+		break;
 	case HostCmd_CMD_TXPWR_CFG:
 		ret = mwifiex_ret_tx_power_cfg(priv, resp);
 		break;
@@ -1233,6 +1236,9 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 	case HostCmd_CMD_SDIO_SP_RX_AGGR_CFG:
 		ret = mwifiex_ret_sdio_rx_aggr_cfg(priv, resp);
 		break;
+	case HostCmd_CMD_HS_WAKEUP_REASON:
+		ret = mwifiex_ret_wakeup_reason(priv, resp, data_buf);
+		break;
 	case HostCmd_CMD_TDLS_CONFIG:
 		break;
 	case HostCmd_CMD_ROBUST_COEX:
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c
index ff3ee9dfbbd5..fd8061c73091 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_event.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c
@@ -607,11 +607,13 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 	case EVENT_PS_AWAKE:
 		mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
-		if (!adapter->pps_uapsd_mode && priv->port_open &&
+		if (!adapter->pps_uapsd_mode &&
+		    (priv->port_open ||
+		     (priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
 		    priv->media_connected && adapter->sleep_period.period) {
-				adapter->pps_uapsd_mode = true;
-				mwifiex_dbg(adapter, EVENT,
-					    "event: PPS/UAPSD mode activated\n");
+			adapter->pps_uapsd_mode = true;
+			mwifiex_dbg(adapter, EVENT,
+				    "event: PPS/UAPSD mode activated\n");
 		}
 		adapter->tx_lock_flag = false;
 		if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
@@ -686,6 +688,13 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 				       HostCmd_ACT_GEN_GET, 0, NULL, false);
 		break;
 
+	case EVENT_BG_SCAN_STOPPED:
+		dev_dbg(adapter->dev, "event: BGS_STOPPED\n");
+		cfg80211_sched_scan_stopped(priv->wdev.wiphy);
+		if (priv->sched_scanning)
+			priv->sched_scanning = false;
+		break;
+
 	case EVENT_PORT_RELEASE:
 		mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
 		priv->port_open = true;
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
index 6a4fc5d183cf..5cbee58f8781 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -504,6 +504,20 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 		}
 	}
 
+	priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
+
+	if (priv && priv->sched_scanning) {
+#ifdef CONFIG_PM
+		if (!priv->wdev.wiphy->wowlan_config->nd_config) {
+#endif
+			mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
+			mwifiex_stop_bg_scan(priv);
+			cfg80211_sched_scan_stopped(priv->wdev.wiphy);
+#ifdef CONFIG_PM
+		}
+#endif
+	}
+
 	if (adapter->hs_activated) {
 		mwifiex_dbg(adapter, CMD,
 			    "cmd: HS Already activated\n");
@@ -1114,11 +1128,12 @@ int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
  * with requisite parameters and calls the IOCTL handler.
  */
 int
-mwifiex_get_ver_ext(struct mwifiex_private *priv)
+mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
 {
 	struct mwifiex_ver_ext ver_ext;
 
 	memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
+	ver_ext.version_str_sel = version_str_sel;
 	if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
 			     HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
 		return -1;
@@ -1450,3 +1465,19 @@ mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
 
 	return 0;
 }
+
+/* This function get Host Sleep wake up reason.
+ *
+ */
+int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
+			      int cmd_type,
+			      struct mwifiex_ds_wakeup_reason *wakeup_reason)
+{
+	int status = 0;
+
+	status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
+				  HostCmd_ACT_GEN_GET, 0, wakeup_reason,
+				  cmd_type == MWIFIEX_SYNC_CMD);
+
+	return status;
+}
diff --git a/drivers/net/wireless/marvell/mwifiex/wmm.c b/drivers/net/wireless/marvell/mwifiex/wmm.c
index acccd6734e3b..499e5a741c62 100644
--- a/drivers/net/wireless/marvell/mwifiex/wmm.c
+++ b/drivers/net/wireless/marvell/mwifiex/wmm.c
@@ -475,7 +475,8 @@ mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter)
 		priv = adapter->priv[i];
 		if (!priv)
 			continue;
-		if (!priv->port_open)
+		if (!priv->port_open &&
+		    (priv->bss_mode != NL80211_IFTYPE_ADHOC))
 			continue;
 		if (adapter->if_ops.is_port_ready &&
 		    !adapter->if_ops.is_port_ready(priv))
@@ -1099,7 +1100,8 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
 
 			priv_tmp = adapter->bss_prio_tbl[j].bss_prio_cur->priv;
 
-			if (!priv_tmp->port_open ||
+			if (((priv_tmp->bss_mode != NL80211_IFTYPE_ADHOC) &&
+			     !priv_tmp->port_open) ||
 			    (atomic_read(&priv_tmp->wmm.tx_pkts_queued) == 0))
 				continue;
 
diff --git a/drivers/net/wireless/ti/wlcore/Kconfig b/drivers/net/wireless/ti/wlcore/Kconfig
index 969c9d79bfc8..8a8f1e711384 100644
--- a/drivers/net/wireless/ti/wlcore/Kconfig
+++ b/drivers/net/wireless/ti/wlcore/Kconfig
@@ -13,7 +13,7 @@ config WLCORE
 
 config WLCORE_SPI
 	tristate "TI wlcore SPI support"
-	depends on WLCORE && SPI_MASTER
+	depends on WLCORE && SPI_MASTER && OF
 	select CRC7
 	---help---
 	  This module adds support for the SPI interface of adapters using
diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c
index c96405498bf4..4b59f67724de 100644
--- a/drivers/net/wireless/ti/wlcore/event.c
+++ b/drivers/net/wireless/ti/wlcore/event.c
@@ -38,7 +38,7 @@
 
 int wlcore_event_fw_logger(struct wl1271 *wl)
 {
-	u32 ret;
+	int ret;
 	struct fw_logger_information fw_log;
 	u8  *buffer;
 	u32 internal_fw_addrbase = WL18XX_DATA_RAM_BASE_ADDRESS;
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index 44f059f7f34e..020ac1a4b408 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -30,6 +30,8 @@
 #include <linux/spi/spi.h>
 #include <linux/wl12xx.h>
 #include <linux/platform_device.h>
+#include <linux/of_irq.h>
+#include <linux/regulator/consumer.h>
 
 #include "wlcore.h"
 #include "wl12xx_80211.h"
@@ -81,6 +83,7 @@
 struct wl12xx_spi_glue {
 	struct device *dev;
 	struct platform_device *core;
+	struct regulator *reg; /* Power regulator */
 };
 
 static void wl12xx_spi_reset(struct device *child)
@@ -318,14 +321,76 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
 	return 0;
 }
 
+/**
+ * wl12xx_spi_set_power - power on/off the wl12xx unit
+ * @child: wl12xx device handle.
+ * @enable: true/false to power on/off the unit.
+ *
+ * use the WiFi enable regulator to enable/disable the WiFi unit.
+ */
+static int wl12xx_spi_set_power(struct device *child, bool enable)
+{
+	int ret = 0;
+	struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
+
+	WARN_ON(!glue->reg);
+
+	/* Update regulator state */
+	if (enable) {
+		ret = regulator_enable(glue->reg);
+		if (ret)
+			dev_err(child, "Power enable failure\n");
+	} else {
+		ret =  regulator_disable(glue->reg);
+		if (ret)
+			dev_err(child, "Power disable failure\n");
+	}
+
+	return ret;
+}
+
 static struct wl1271_if_operations spi_ops = {
 	.read		= wl12xx_spi_raw_read,
 	.write		= wl12xx_spi_raw_write,
 	.reset		= wl12xx_spi_reset,
 	.init		= wl12xx_spi_init,
+	.power		= wl12xx_spi_set_power,
 	.set_block_size = NULL,
 };
 
+static const struct of_device_id wlcore_spi_of_match_table[] = {
+	{ .compatible = "ti,wl1271" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, wlcore_spi_of_match_table);
+
+/**
+ * wlcore_probe_of - DT node parsing.
+ * @spi: SPI slave device parameters.
+ * @res: resource parameters.
+ * @glue: wl12xx SPI bus to slave device glue parameters.
+ * @pdev_data: wlcore device parameters
+ */
+static int wlcore_probe_of(struct spi_device *spi, struct wl12xx_spi_glue *glue,
+			   struct wlcore_platdev_data *pdev_data)
+{
+	struct device_node *dt_node = spi->dev.of_node;
+	int ret;
+
+	if (of_find_property(dt_node, "clock-xtal", NULL))
+		pdev_data->ref_clock_xtal = true;
+
+	ret = of_property_read_u32(dt_node, "ref-clock-frequency",
+				   &pdev_data->ref_clock_freq);
+	if (IS_ERR_VALUE(ret)) {
+		dev_err(glue->dev,
+			"can't get reference clock frequency (%d)\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 static int wl1271_probe(struct spi_device *spi)
 {
 	struct wl12xx_spi_glue *glue;
@@ -335,8 +400,6 @@ static int wl1271_probe(struct spi_device *spi)
 
 	memset(&pdev_data, 0x00, sizeof(pdev_data));
 
-	/* TODO: add DT parsing when needed */
-
 	pdev_data.if_ops = &spi_ops;
 
 	glue = devm_kzalloc(&spi->dev, sizeof(*glue), GFP_KERNEL);
@@ -353,6 +416,21 @@ static int wl1271_probe(struct spi_device *spi)
 	 * comes from the board-peripherals file */
 	spi->bits_per_word = 32;
 
+	glue->reg = devm_regulator_get(&spi->dev, "vwlan");
+	if (PTR_ERR(glue->reg) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+	if (IS_ERR(glue->reg)) {
+		dev_err(glue->dev, "can't get regulator\n");
+		return PTR_ERR(glue->reg);
+	}
+
+	ret = wlcore_probe_of(spi, glue, &pdev_data);
+	if (IS_ERR_VALUE(ret)) {
+		dev_err(glue->dev,
+			"can't get device tree parameters (%d)\n", ret);
+		return ret;
+	}
+
 	ret = spi_setup(spi);
 	if (ret < 0) {
 		dev_err(glue->dev, "spi_setup failed\n");
@@ -370,7 +448,7 @@ static int wl1271_probe(struct spi_device *spi)
 	memset(res, 0x00, sizeof(res));
 
 	res[0].start = spi->irq;
-	res[0].flags = IORESOURCE_IRQ;
+	res[0].flags = IORESOURCE_IRQ | irq_get_trigger_type(spi->irq);
 	res[0].name = "irq";
 
 	ret = platform_device_add_resources(glue->core, res, ARRAY_SIZE(res));
@@ -408,10 +486,10 @@ static int wl1271_remove(struct spi_device *spi)
 	return 0;
 }
 
-
 static struct spi_driver wl1271_spi_driver = {
 	.driver = {
 		.name		= "wl1271_spi",
+		.of_match_table = of_match_ptr(wlcore_spi_of_match_table),
 	},
 
 	.probe		= wl1271_probe,
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index e7bd63eb2876..f5231a2dd2ac 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -615,6 +615,7 @@ err_tx_unbind:
 	queue->tx_irq = 0;
 err_unmap:
 	xenvif_unmap_frontend_rings(queue);
+	netif_napi_del(&queue->napi);
 err:
 	module_put(THIS_MODULE);
 	return err;
@@ -684,22 +685,16 @@ void xenvif_deinit_queue(struct xenvif_queue *queue)
 
 void xenvif_free(struct xenvif *vif)
 {
-	struct xenvif_queue *queue = NULL;
+	struct xenvif_queue *queues = vif->queues;
 	unsigned int num_queues = vif->num_queues;
 	unsigned int queue_index;
 
 	unregister_netdev(vif->dev);
-
-	for (queue_index = 0; queue_index < num_queues; ++queue_index) {
-		queue = &vif->queues[queue_index];
-		xenvif_deinit_queue(queue);
-	}
-
-	vfree(vif->queues);
-	vif->queues = NULL;
-	vif->num_queues = 0;
-
 	free_netdev(vif->dev);
 
+	for (queue_index = 0; queue_index < num_queues; ++queue_index)
+		xenvif_deinit_queue(&queues[queue_index]);
+	vfree(queues);
+
 	module_put(THIS_MODULE);
 }
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 1049c34e7d43..61b97c34bb3b 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -149,20 +149,19 @@ static inline pending_ring_idx_t pending_index(unsigned i)
 	return i & (MAX_PENDING_REQS-1);
 }
 
-static int xenvif_rx_ring_slots_needed(struct xenvif *vif)
-{
-	if (vif->gso_mask)
-		return DIV_ROUND_UP(vif->dev->gso_max_size, XEN_PAGE_SIZE) + 1;
-	else
-		return DIV_ROUND_UP(vif->dev->mtu, XEN_PAGE_SIZE);
-}
-
 static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue)
 {
 	RING_IDX prod, cons;
+	struct sk_buff *skb;
 	int needed;
 
-	needed = xenvif_rx_ring_slots_needed(queue->vif);
+	skb = skb_peek(&queue->rx_queue);
+	if (!skb)
+		return false;
+
+	needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE);
+	if (skb_is_gso(skb))
+		needed++;
 
 	do {
 		prod = queue->rx.sring->req_prod;
@@ -2005,8 +2004,7 @@ static bool xenvif_rx_queue_ready(struct xenvif_queue *queue)
 
 static bool xenvif_have_rx_work(struct xenvif_queue *queue)
 {
-	return (!skb_queue_empty(&queue->rx_queue)
-		&& xenvif_rx_ring_slots_available(queue))
+	return xenvif_rx_ring_slots_available(queue)
 		|| (queue->vif->stall_timeout &&
 		    (xenvif_rx_queue_stalled(queue)
 		     || xenvif_rx_queue_ready(queue)))
diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 82c49bb87055..2e2832b83c93 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -11,6 +11,7 @@
  * General Public License for more details.
  */
 #include <linux/libnvdimm.h>
+#include <linux/badblocks.h>
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/blkdev.h>
@@ -325,6 +326,7 @@ struct nvdimm_bus *__nvdimm_bus_register(struct device *parent,
 	if (!nvdimm_bus)
 		return NULL;
 	INIT_LIST_HEAD(&nvdimm_bus->list);
+	INIT_LIST_HEAD(&nvdimm_bus->poison_list);
 	init_waitqueue_head(&nvdimm_bus->probe_wait);
 	nvdimm_bus->id = ida_simple_get(&nd_ida, 0, 0, GFP_KERNEL);
 	mutex_init(&nvdimm_bus->reconfig_mutex);
@@ -359,6 +361,172 @@ struct nvdimm_bus *__nvdimm_bus_register(struct device *parent,
 }
 EXPORT_SYMBOL_GPL(__nvdimm_bus_register);
 
+static void set_badblock(struct badblocks *bb, sector_t s, int num)
+{
+	dev_dbg(bb->dev, "Found a poison range (0x%llx, 0x%llx)\n",
+			(u64) s * 512, (u64) num * 512);
+	/* this isn't an error as the hardware will still throw an exception */
+	if (badblocks_set(bb, s, num, 1))
+		dev_info_once(bb->dev, "%s: failed for sector %llx\n",
+				__func__, (u64) s);
+}
+
+/**
+ * __add_badblock_range() - Convert a physical address range to bad sectors
+ * @bb:		badblocks instance to populate
+ * @ns_offset:	namespace offset where the error range begins (in bytes)
+ * @len:	number of bytes of poison to be added
+ *
+ * This assumes that the range provided with (ns_offset, len) is within
+ * the bounds of physical addresses for this namespace, i.e. lies in the
+ * interval [ns_start, ns_start + ns_size)
+ */
+static void __add_badblock_range(struct badblocks *bb, u64 ns_offset, u64 len)
+{
+	const unsigned int sector_size = 512;
+	sector_t start_sector;
+	u64 num_sectors;
+	u32 rem;
+
+	start_sector = div_u64(ns_offset, sector_size);
+	num_sectors = div_u64_rem(len, sector_size, &rem);
+	if (rem)
+		num_sectors++;
+
+	if (unlikely(num_sectors > (u64)INT_MAX)) {
+		u64 remaining = num_sectors;
+		sector_t s = start_sector;
+
+		while (remaining) {
+			int done = min_t(u64, remaining, INT_MAX);
+
+			set_badblock(bb, s, done);
+			remaining -= done;
+			s += done;
+		}
+	} else
+		set_badblock(bb, start_sector, num_sectors);
+}
+
+/**
+ * nvdimm_namespace_add_poison() - Convert a list of poison ranges to badblocks
+ * @ndns:	the namespace containing poison ranges
+ * @bb:		badblocks instance to populate
+ * @offset:	offset at the start of the namespace before 'sector 0'
+ *
+ * The poison list generated during NFIT initialization may contain multiple,
+ * possibly overlapping ranges in the SPA (System Physical Address) space.
+ * Compare each of these ranges to the namespace currently being initialized,
+ * and add badblocks to the gendisk for all matching sub-ranges
+ */
+void nvdimm_namespace_add_poison(struct nd_namespace_common *ndns,
+		struct badblocks *bb, resource_size_t offset)
+{
+	struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev);
+	struct nd_region *nd_region = to_nd_region(ndns->dev.parent);
+	struct nvdimm_bus *nvdimm_bus;
+	struct list_head *poison_list;
+	u64 ns_start, ns_end, ns_size;
+	struct nd_poison *pl;
+
+	ns_size = nvdimm_namespace_capacity(ndns) - offset;
+	ns_start = nsio->res.start + offset;
+	ns_end = nsio->res.end;
+
+	nvdimm_bus = to_nvdimm_bus(nd_region->dev.parent);
+	poison_list = &nvdimm_bus->poison_list;
+	if (list_empty(poison_list))
+		return;
+
+	list_for_each_entry(pl, poison_list, list) {
+		u64 pl_end = pl->start + pl->length - 1;
+
+		/* Discard intervals with no intersection */
+		if (pl_end < ns_start)
+			continue;
+		if (pl->start > ns_end)
+			continue;
+		/* Deal with any overlap after start of the namespace */
+		if (pl->start >= ns_start) {
+			u64 start = pl->start;
+			u64 len;
+
+			if (pl_end <= ns_end)
+				len = pl->length;
+			else
+				len = ns_start + ns_size - pl->start;
+			__add_badblock_range(bb, start - ns_start, len);
+			continue;
+		}
+		/* Deal with overlap for poison starting before the namespace */
+		if (pl->start < ns_start) {
+			u64 len;
+
+			if (pl_end < ns_end)
+				len = pl->start + pl->length - ns_start;
+			else
+				len = ns_size;
+			__add_badblock_range(bb, 0, len);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(nvdimm_namespace_add_poison);
+
+static int __add_poison(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length)
+{
+	struct nd_poison *pl;
+
+	pl = kzalloc(sizeof(*pl), GFP_KERNEL);
+	if (!pl)
+		return -ENOMEM;
+
+	pl->start = addr;
+	pl->length = length;
+	list_add_tail(&pl->list, &nvdimm_bus->poison_list);
+
+	return 0;
+}
+
+int nvdimm_bus_add_poison(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length)
+{
+	struct nd_poison *pl;
+
+	if (list_empty(&nvdimm_bus->poison_list))
+		return __add_poison(nvdimm_bus, addr, length);
+
+	/*
+	 * There is a chance this is a duplicate, check for those first.
+	 * This will be the common case as ARS_STATUS returns all known
+	 * errors in the SPA space, and we can't query it per region
+	 */
+	list_for_each_entry(pl, &nvdimm_bus->poison_list, list)
+		if (pl->start == addr) {
+			/* If length has changed, update this list entry */
+			if (pl->length != length)
+				pl->length = length;
+			return 0;
+		}
+
+	/*
+	 * If not a duplicate or a simple length update, add the entry as is,
+	 * as any overlapping ranges will get resolved when the list is consumed
+	 * and converted to badblocks
+	 */
+	return __add_poison(nvdimm_bus, addr, length);
+}
+EXPORT_SYMBOL_GPL(nvdimm_bus_add_poison);
+
+static void free_poison_list(struct list_head *poison_list)
+{
+	struct nd_poison *pl, *next;
+
+	list_for_each_entry_safe(pl, next, poison_list, list) {
+		list_del(&pl->list);
+		kfree(pl);
+	}
+	list_del_init(poison_list);
+}
+
 static int child_unregister(struct device *dev, void *data)
 {
 	/*
@@ -385,6 +553,7 @@ void nvdimm_bus_unregister(struct nvdimm_bus *nvdimm_bus)
 
 	nd_synchronize();
 	device_for_each_child(&nvdimm_bus->dev, NULL, child_unregister);
+	free_poison_list(&nvdimm_bus->poison_list);
 	nvdimm_bus_destroy_ndctl(nvdimm_bus);
 
 	device_unregister(&nvdimm_bus->dev);
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 0955b2cb10fe..8ebfcaae3f5a 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -77,6 +77,59 @@ static bool is_namespace_io(struct device *dev)
 	return dev ? dev->type == &namespace_io_device_type : false;
 }
 
+static int is_uuid_busy(struct device *dev, void *data)
+{
+	u8 *uuid1 = data, *uuid2 = NULL;
+
+	if (is_namespace_pmem(dev)) {
+		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
+
+		uuid2 = nspm->uuid;
+	} else if (is_namespace_blk(dev)) {
+		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
+
+		uuid2 = nsblk->uuid;
+	} else if (is_nd_btt(dev)) {
+		struct nd_btt *nd_btt = to_nd_btt(dev);
+
+		uuid2 = nd_btt->uuid;
+	} else if (is_nd_pfn(dev)) {
+		struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+
+		uuid2 = nd_pfn->uuid;
+	}
+
+	if (uuid2 && memcmp(uuid1, uuid2, NSLABEL_UUID_LEN) == 0)
+		return -EBUSY;
+
+	return 0;
+}
+
+static int is_namespace_uuid_busy(struct device *dev, void *data)
+{
+	if (is_nd_pmem(dev) || is_nd_blk(dev))
+		return device_for_each_child(dev, data, is_uuid_busy);
+	return 0;
+}
+
+/**
+ * nd_is_uuid_unique - verify that no other namespace has @uuid
+ * @dev: any device on a nvdimm_bus
+ * @uuid: uuid to check
+ */
+bool nd_is_uuid_unique(struct device *dev, u8 *uuid)
+{
+	struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev);
+
+	if (!nvdimm_bus)
+		return false;
+	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev));
+	if (device_for_each_child(&nvdimm_bus->dev, uuid,
+				is_namespace_uuid_busy) != 0)
+		return false;
+	return true;
+}
+
 bool pmem_should_map_pages(struct device *dev)
 {
 	struct nd_region *nd_region = to_nd_region(dev->parent);
@@ -104,20 +157,10 @@ const char *nvdimm_namespace_disk_name(struct nd_namespace_common *ndns,
 	struct nd_region *nd_region = to_nd_region(ndns->dev.parent);
 	const char *suffix = NULL;
 
-	if (ndns->claim) {
-		if (is_nd_btt(ndns->claim))
-			suffix = "s";
-		else if (is_nd_pfn(ndns->claim))
-			suffix = "m";
-		else
-			dev_WARN_ONCE(&ndns->dev, 1,
-					"unknown claim type by %s\n",
-					dev_name(ndns->claim));
-	}
+	if (ndns->claim && is_nd_btt(ndns->claim))
+		suffix = "s";
 
 	if (is_namespace_pmem(&ndns->dev) || is_namespace_io(&ndns->dev)) {
-		if (!suffix && pmem_should_map_pages(&ndns->dev))
-			suffix = "m";
 		sprintf(name, "pmem%d%s", nd_region->id, suffix ? suffix : "");
 	} else if (is_namespace_blk(&ndns->dev)) {
 		struct nd_namespace_blk *nsblk;
@@ -791,6 +834,15 @@ static void nd_namespace_pmem_set_size(struct nd_region *nd_region,
 	res->end = nd_region->ndr_start + size - 1;
 }
 
+static bool uuid_not_set(const u8 *uuid, struct device *dev, const char *where)
+{
+	if (!uuid) {
+		dev_dbg(dev, "%s: uuid not set\n", where);
+		return true;
+	}
+	return false;
+}
+
 static ssize_t __size_store(struct device *dev, unsigned long long val)
 {
 	resource_size_t allocated = 0, available = 0;
@@ -820,8 +872,12 @@ static ssize_t __size_store(struct device *dev, unsigned long long val)
 	 * We need a uuid for the allocation-label and dimm(s) on which
 	 * to store the label.
 	 */
-	if (!uuid || nd_region->ndr_mappings == 0)
+	if (uuid_not_set(uuid, dev, __func__))
 		return -ENXIO;
+	if (nd_region->ndr_mappings == 0) {
+		dev_dbg(dev, "%s: not associated with dimm(s)\n", __func__);
+		return -ENXIO;
+	}
 
 	div_u64_rem(val, SZ_4K * nd_region->ndr_mappings, &remainder);
 	if (remainder) {
@@ -1211,6 +1267,29 @@ static ssize_t holder_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(holder);
 
+static ssize_t mode_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct nd_namespace_common *ndns = to_ndns(dev);
+	struct device *claim;
+	char *mode;
+	ssize_t rc;
+
+	device_lock(dev);
+	claim = ndns->claim;
+	if (pmem_should_map_pages(dev) || (claim && is_nd_pfn(claim)))
+		mode = "memory";
+	else if (claim && is_nd_btt(claim))
+		mode = "safe";
+	else
+		mode = "raw";
+	rc = sprintf(buf, "%s\n", mode);
+	device_unlock(dev);
+
+	return rc;
+}
+static DEVICE_ATTR_RO(mode);
+
 static ssize_t force_raw_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t len)
 {
@@ -1234,6 +1313,7 @@ static DEVICE_ATTR_RW(force_raw);
 static struct attribute *nd_namespace_attributes[] = {
 	&dev_attr_nstype.attr,
 	&dev_attr_size.attr,
+	&dev_attr_mode.attr,
 	&dev_attr_uuid.attr,
 	&dev_attr_holder.attr,
 	&dev_attr_resource.attr,
@@ -1267,7 +1347,8 @@ static umode_t namespace_visible(struct kobject *kobj,
 
 	if (a == &dev_attr_nstype.attr || a == &dev_attr_size.attr
 			|| a == &dev_attr_holder.attr
-			|| a == &dev_attr_force_raw.attr)
+			|| a == &dev_attr_force_raw.attr
+			|| a == &dev_attr_mode.attr)
 		return a->mode;
 
 	return 0;
@@ -1343,14 +1424,19 @@ struct nd_namespace_common *nvdimm_namespace_common_probe(struct device *dev)
 		struct nd_namespace_pmem *nspm;
 
 		nspm = to_nd_namespace_pmem(&ndns->dev);
-		if (!nspm->uuid) {
-			dev_dbg(&ndns->dev, "%s: uuid not set\n", __func__);
+		if (uuid_not_set(nspm->uuid, &ndns->dev, __func__))
 			return ERR_PTR(-ENODEV);
-		}
 	} else if (is_namespace_blk(&ndns->dev)) {
 		struct nd_namespace_blk *nsblk;
 
 		nsblk = to_nd_namespace_blk(&ndns->dev);
+		if (uuid_not_set(nsblk->uuid, &ndns->dev, __func__))
+			return ERR_PTR(-ENODEV);
+		if (!nsblk->lbasize) {
+			dev_dbg(&ndns->dev, "%s: sector size not set\n",
+				__func__);
+			return ERR_PTR(-ENODEV);
+		}
 		if (!nd_namespace_blk_validate(nsblk))
 			return ERR_PTR(-ENODEV);
 	}
@@ -1689,6 +1775,18 @@ void nd_region_create_blk_seed(struct nd_region *nd_region)
 		nd_device_register(nd_region->ns_seed);
 }
 
+void nd_region_create_pfn_seed(struct nd_region *nd_region)
+{
+	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));
+	nd_region->pfn_seed = nd_pfn_create(nd_region);
+	/*
+	 * Seed creation failures are not fatal, provisioning is simply
+	 * disabled until memory becomes available
+	 */
+	if (!nd_region->pfn_seed)
+		dev_err(&nd_region->dev, "failed to create pfn namespace\n");
+}
+
 void nd_region_create_btt_seed(struct nd_region *nd_region)
 {
 	WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev));
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index 159aed532042..1d1500f3d8b5 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -30,6 +30,7 @@ struct nvdimm_bus {
 	struct list_head list;
 	struct device dev;
 	int id, probe_active;
+	struct list_head poison_list;
 	struct mutex reconfig_mutex;
 };
 
@@ -52,6 +53,7 @@ void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev);
 struct nd_region;
 void nd_region_create_blk_seed(struct nd_region *nd_region);
 void nd_region_create_btt_seed(struct nd_region *nd_region);
+void nd_region_create_pfn_seed(struct nd_region *nd_region);
 void nd_region_disable(struct nvdimm_bus *nvdimm_bus, struct device *dev);
 int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
 void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index 417e521d299c..ba1633b9da31 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -29,13 +29,12 @@ enum {
 	ND_MAX_LANES = 256,
 	SECTOR_SHIFT = 9,
 	INT_LBASIZE_ALIGNMENT = 64,
-#if IS_ENABLED(CONFIG_NVDIMM_PFN)
-	ND_PFN_ALIGN = PAGES_PER_SECTION * PAGE_SIZE,
-	ND_PFN_MASK = ND_PFN_ALIGN - 1,
-#else
-	ND_PFN_ALIGN = 0,
-	ND_PFN_MASK = 0,
-#endif
+};
+
+struct nd_poison {
+	u64 start;
+	u64 length;
+	struct list_head list;
 };
 
 struct nvdimm_drvdata {
@@ -153,6 +152,7 @@ struct nd_pfn {
 	int id;
 	u8 *uuid;
 	struct device dev;
+	unsigned long align;
 	unsigned long npfns;
 	enum nd_pfn_mode mode;
 	struct nd_pfn_sb *pfn_sb;
@@ -262,6 +262,8 @@ int nvdimm_namespace_attach_btt(struct nd_namespace_common *ndns);
 int nvdimm_namespace_detach_btt(struct nd_namespace_common *ndns);
 const char *nvdimm_namespace_disk_name(struct nd_namespace_common *ndns,
 		char *name);
+void nvdimm_namespace_add_poison(struct nd_namespace_common *ndns,
+		struct badblocks *bb, resource_size_t offset);
 int nd_blk_region_init(struct nd_region *nd_region);
 void __nd_iostat_start(struct bio *bio, unsigned long *start);
 static inline bool nd_iostat_start(struct bio *bio, unsigned long *start)
diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 71805a1aa0f3..f9b674bc49db 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -103,6 +103,52 @@ static ssize_t mode_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(mode);
 
+static ssize_t align_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+
+	return sprintf(buf, "%lx\n", nd_pfn->align);
+}
+
+static ssize_t __align_store(struct nd_pfn *nd_pfn, const char *buf)
+{
+	unsigned long val;
+	int rc;
+
+	rc = kstrtoul(buf, 0, &val);
+	if (rc)
+		return rc;
+
+	if (!is_power_of_2(val) || val < PAGE_SIZE || val > SZ_1G)
+		return -EINVAL;
+
+	if (nd_pfn->dev.driver)
+		return -EBUSY;
+	else
+		nd_pfn->align = val;
+
+	return 0;
+}
+
+static ssize_t align_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+	ssize_t rc;
+
+	device_lock(dev);
+	nvdimm_bus_lock(dev);
+	rc = __align_store(nd_pfn, buf);
+	dev_dbg(dev, "%s: result: %zd wrote: %s%s", __func__,
+			rc, buf, buf[len - 1] == '\n' ? "" : "\n");
+	nvdimm_bus_unlock(dev);
+	device_unlock(dev);
+
+	return rc ? rc : len;
+}
+static DEVICE_ATTR_RW(align);
+
 static ssize_t uuid_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
@@ -164,6 +210,7 @@ static struct attribute *nd_pfn_attributes[] = {
 	&dev_attr_mode.attr,
 	&dev_attr_namespace.attr,
 	&dev_attr_uuid.attr,
+	&dev_attr_align.attr,
 	NULL,
 };
 
@@ -179,7 +226,6 @@ static const struct attribute_group *nd_pfn_attribute_groups[] = {
 };
 
 static struct device *__nd_pfn_create(struct nd_region *nd_region,
-		u8 *uuid, enum nd_pfn_mode mode,
 		struct nd_namespace_common *ndns)
 {
 	struct nd_pfn *nd_pfn;
@@ -199,10 +245,8 @@ static struct device *__nd_pfn_create(struct nd_region *nd_region,
 		return NULL;
 	}
 
-	nd_pfn->mode = mode;
-	if (uuid)
-		uuid = kmemdup(uuid, 16, GFP_KERNEL);
-	nd_pfn->uuid = uuid;
+	nd_pfn->mode = PFN_MODE_NONE;
+	nd_pfn->align = HPAGE_SIZE;
 	dev = &nd_pfn->dev;
 	dev_set_name(dev, "pfn%d.%d", nd_region->id, nd_pfn->id);
 	dev->parent = &nd_region->dev;
@@ -220,8 +264,7 @@ static struct device *__nd_pfn_create(struct nd_region *nd_region,
 
 struct device *nd_pfn_create(struct nd_region *nd_region)
 {
-	struct device *dev = __nd_pfn_create(nd_region, NULL, PFN_MODE_NONE,
-			NULL);
+	struct device *dev = __nd_pfn_create(nd_region, NULL);
 
 	if (dev)
 		__nd_device_register(dev);
@@ -230,10 +273,11 @@ struct device *nd_pfn_create(struct nd_region *nd_region)
 
 int nd_pfn_validate(struct nd_pfn *nd_pfn)
 {
-	struct nd_namespace_common *ndns = nd_pfn->ndns;
-	struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
-	struct nd_namespace_io *nsio;
 	u64 checksum, offset;
+	struct nd_namespace_io *nsio;
+	struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
+	struct nd_namespace_common *ndns = nd_pfn->ndns;
+	const u8 *parent_uuid = nd_dev_to_uuid(&ndns->dev);
 
 	if (!pfn_sb || !ndns)
 		return -ENODEV;
@@ -241,10 +285,6 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn)
 	if (!is_nd_pmem(nd_pfn->dev.parent))
 		return -ENODEV;
 
-	/* section alignment for simple hotplug */
-	if (nvdimm_namespace_capacity(ndns) < ND_PFN_ALIGN)
-		return -ENODEV;
-
 	if (nvdimm_read_bytes(ndns, SZ_4K, pfn_sb, sizeof(*pfn_sb)))
 		return -ENXIO;
 
@@ -257,6 +297,9 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn)
 		return -ENODEV;
 	pfn_sb->checksum = cpu_to_le64(checksum);
 
+	if (memcmp(pfn_sb->parent_uuid, parent_uuid, 16) != 0)
+		return -ENODEV;
+
 	switch (le32_to_cpu(pfn_sb->mode)) {
 	case PFN_MODE_RAM:
 		break;
@@ -278,6 +321,12 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn)
 			return -EINVAL;
 	}
 
+	if (nd_pfn->align > nvdimm_namespace_capacity(ndns)) {
+		dev_err(&nd_pfn->dev, "alignment: %lx exceeds capacity %llx\n",
+				nd_pfn->align, nvdimm_namespace_capacity(ndns));
+		return -EINVAL;
+	}
+
 	/*
 	 * These warnings are verbose because they can only trigger in
 	 * the case where the physical address alignment of the
@@ -286,17 +335,19 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn)
 	 */
 	offset = le64_to_cpu(pfn_sb->dataoff);
 	nsio = to_nd_namespace_io(&ndns->dev);
-	if (nsio->res.start & ND_PFN_MASK) {
-		dev_err(&nd_pfn->dev,
-				"init failed: %s not section aligned\n",
-				dev_name(&ndns->dev));
-		return -EBUSY;
-	} else if (offset >= resource_size(&nsio->res)) {
+	if (offset >= resource_size(&nsio->res)) {
 		dev_err(&nd_pfn->dev, "pfn array size exceeds capacity of %s\n",
 				dev_name(&ndns->dev));
 		return -EBUSY;
 	}
 
+	nd_pfn->align = 1UL << ilog2(offset);
+	if (!is_power_of_2(offset) || offset < PAGE_SIZE) {
+		dev_err(&nd_pfn->dev, "bad offset: %#llx dax disabled\n",
+				offset);
+		return -ENXIO;
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL(nd_pfn_validate);
@@ -313,7 +364,7 @@ int nd_pfn_probe(struct nd_namespace_common *ndns, void *drvdata)
 		return -ENODEV;
 
 	nvdimm_bus_lock(&ndns->dev);
-	dev = __nd_pfn_create(nd_region, NULL, PFN_MODE_NONE, ndns);
+	dev = __nd_pfn_create(nd_region, ndns);
 	nvdimm_bus_unlock(&ndns->dev);
 	if (!dev)
 		return -ENOMEM;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 8ee79893d2f5..b493ff3fccb2 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/memory_hotplug.h>
 #include <linux/moduleparam.h>
+#include <linux/badblocks.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/pmem.h>
@@ -41,11 +42,25 @@ struct pmem_device {
 	phys_addr_t		data_offset;
 	void __pmem		*virt_addr;
 	size_t			size;
+	struct badblocks	bb;
 };
 
 static int pmem_major;
 
-static void pmem_do_bvec(struct pmem_device *pmem, struct page *page,
+static bool is_bad_pmem(struct badblocks *bb, sector_t sector, unsigned int len)
+{
+	if (bb->count) {
+		sector_t first_bad;
+		int num_bad;
+
+		return !!badblocks_check(bb, sector, len / 512, &first_bad,
+				&num_bad);
+	}
+
+	return false;
+}
+
+static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 			unsigned int len, unsigned int off, int rw,
 			sector_t sector)
 {
@@ -54,6 +69,8 @@ static void pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 	void __pmem *pmem_addr = pmem->virt_addr + pmem_off;
 
 	if (rw == READ) {
+		if (unlikely(is_bad_pmem(&pmem->bb, sector, len)))
+			return -EIO;
 		memcpy_from_pmem(mem + off, pmem_addr, len);
 		flush_dcache_page(page);
 	} else {
@@ -62,10 +79,12 @@ static void pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 	}
 
 	kunmap_atomic(mem);
+	return 0;
 }
 
 static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
 {
+	int rc = 0;
 	bool do_acct;
 	unsigned long start;
 	struct bio_vec bvec;
@@ -74,9 +93,15 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
 	struct pmem_device *pmem = bdev->bd_disk->private_data;
 
 	do_acct = nd_iostat_start(bio, &start);
-	bio_for_each_segment(bvec, bio, iter)
-		pmem_do_bvec(pmem, bvec.bv_page, bvec.bv_len, bvec.bv_offset,
-				bio_data_dir(bio), iter.bi_sector);
+	bio_for_each_segment(bvec, bio, iter) {
+		rc = pmem_do_bvec(pmem, bvec.bv_page, bvec.bv_len,
+				bvec.bv_offset, bio_data_dir(bio),
+				iter.bi_sector);
+		if (rc) {
+			bio->bi_error = rc;
+			break;
+		}
+	}
 	if (do_acct)
 		nd_iostat_end(bio, start);
 
@@ -91,13 +116,22 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
 		       struct page *page, int rw)
 {
 	struct pmem_device *pmem = bdev->bd_disk->private_data;
+	int rc;
 
-	pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
+	rc = pmem_do_bvec(pmem, page, PAGE_CACHE_SIZE, 0, rw, sector);
 	if (rw & WRITE)
 		wmb_pmem();
-	page_endio(page, rw & WRITE, 0);
 
-	return 0;
+	/*
+	 * The ->rw_page interface is subtle and tricky.  The core
+	 * retries on any error, so we can only invoke page_endio() in
+	 * the successful completion case.  Otherwise, we'll see crashes
+	 * caused by double completion.
+	 */
+	if (rc == 0)
+		page_endio(page, rw & WRITE, 0);
+
+	return rc;
 }
 
 static long pmem_direct_access(struct block_device *bdev, sector_t sector,
@@ -195,7 +229,12 @@ static int pmem_attach_disk(struct device *dev,
 	disk->driverfs_dev = dev;
 	set_capacity(disk, (pmem->size - pmem->data_offset) / 512);
 	pmem->pmem_disk = disk;
+	devm_exit_badblocks(dev, &pmem->bb);
+	if (devm_init_badblocks(dev, &pmem->bb))
+		return -ENOMEM;
+	nvdimm_namespace_add_poison(ndns, &pmem->bb, pmem->data_offset);
 
+	disk->bb = &pmem->bb;
 	add_disk(disk);
 	revalidate_disk(disk);
 
@@ -212,9 +251,13 @@ static int pmem_rw_bytes(struct nd_namespace_common *ndns,
 		return -EFAULT;
 	}
 
-	if (rw == READ)
+	if (rw == READ) {
+		unsigned int sz_align = ALIGN(size + (offset & (512 - 1)), 512);
+
+		if (unlikely(is_bad_pmem(&pmem->bb, offset / 512, sz_align)))
+			return -EIO;
 		memcpy_from_pmem(buf, pmem->virt_addr + offset, size);
-	else {
+	} else {
 		memcpy_to_pmem(pmem->virt_addr + offset, buf, size);
 		wmb_pmem();
 	}
@@ -238,14 +281,11 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
 
 	nd_pfn->pfn_sb = pfn_sb;
 	rc = nd_pfn_validate(nd_pfn);
-	if (rc == 0 || rc == -EBUSY)
+	if (rc == -ENODEV)
+		/* no info block, do init */;
+	else
 		return rc;
 
-	/* section alignment for simple hotplug */
-	if (nvdimm_namespace_capacity(ndns) < ND_PFN_ALIGN
-			|| pmem->phys_addr & ND_PFN_MASK)
-		return -ENODEV;
-
 	nd_region = to_nd_region(nd_pfn->dev.parent);
 	if (nd_region->ro) {
 		dev_info(&nd_pfn->dev,
@@ -263,9 +303,9 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
 	 * ->direct_access() to those that are included in the memmap.
 	 */
 	if (nd_pfn->mode == PFN_MODE_PMEM)
-		offset = ALIGN(SZ_8K + 64 * npfns, PMD_SIZE);
+		offset = ALIGN(SZ_8K + 64 * npfns, nd_pfn->align);
 	else if (nd_pfn->mode == PFN_MODE_RAM)
-		offset = SZ_8K;
+		offset = ALIGN(SZ_8K, nd_pfn->align);
 	else
 		goto err;
 
@@ -275,6 +315,7 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
 	pfn_sb->npfns = cpu_to_le64(npfns);
 	memcpy(pfn_sb->signature, PFN_SIG, PFN_SIG_LEN);
 	memcpy(pfn_sb->uuid, nd_pfn->uuid, 16);
+	memcpy(pfn_sb->parent_uuid, nd_dev_to_uuid(&ndns->dev), 16);
 	pfn_sb->version_major = cpu_to_le16(1);
 	checksum = nd_sb_checksum((struct nd_gen_sb *) pfn_sb);
 	pfn_sb->checksum = cpu_to_le64(checksum);
@@ -326,21 +367,11 @@ static int nvdimm_namespace_attach_pfn(struct nd_namespace_common *ndns)
 	if (rc)
 		return rc;
 
-	if (PAGE_SIZE != SZ_4K) {
-		dev_err(dev, "only supported on systems with 4K PAGE_SIZE\n");
-		return -ENXIO;
-	}
-	if (nsio->res.start & ND_PFN_MASK) {
-		dev_err(dev, "%s not memory hotplug section aligned\n",
-				dev_name(&ndns->dev));
-		return -ENXIO;
-	}
-
 	pfn_sb = nd_pfn->pfn_sb;
 	offset = le64_to_cpu(pfn_sb->dataoff);
 	nd_pfn->mode = le32_to_cpu(nd_pfn->pfn_sb->mode);
 	if (nd_pfn->mode == PFN_MODE_RAM) {
-		if (offset != SZ_8K)
+		if (offset < SZ_8K)
 			return -EINVAL;
 		nd_pfn->npfns = le64_to_cpu(pfn_sb->npfns);
 		altmap = NULL;
@@ -389,6 +420,9 @@ static int nd_pmem_probe(struct device *dev)
 	pmem->ndns = ndns;
 	dev_set_drvdata(dev, pmem);
 	ndns->rw_bytes = pmem_rw_bytes;
+	if (devm_init_badblocks(dev, &pmem->bb))
+		return -ENOMEM;
+	nvdimm_namespace_add_poison(ndns, &pmem->bb, 0);
 
 	if (is_nd_btt(dev))
 		return nvdimm_namespace_attach_btt(ndns);
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 529f3f02e7b2..139bf71ca549 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -134,62 +134,6 @@ int nd_region_to_nstype(struct nd_region *nd_region)
 }
 EXPORT_SYMBOL(nd_region_to_nstype);
 
-static int is_uuid_busy(struct device *dev, void *data)
-{
-	struct nd_region *nd_region = to_nd_region(dev->parent);
-	u8 *uuid = data;
-
-	switch (nd_region_to_nstype(nd_region)) {
-	case ND_DEVICE_NAMESPACE_PMEM: {
-		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
-
-		if (!nspm->uuid)
-			break;
-		if (memcmp(uuid, nspm->uuid, NSLABEL_UUID_LEN) == 0)
-			return -EBUSY;
-		break;
-	}
-	case ND_DEVICE_NAMESPACE_BLK: {
-		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
-
-		if (!nsblk->uuid)
-			break;
-		if (memcmp(uuid, nsblk->uuid, NSLABEL_UUID_LEN) == 0)
-			return -EBUSY;
-		break;
-	}
-	default:
-		break;
-	}
-
-	return 0;
-}
-
-static int is_namespace_uuid_busy(struct device *dev, void *data)
-{
-	if (is_nd_pmem(dev) || is_nd_blk(dev))
-		return device_for_each_child(dev, data, is_uuid_busy);
-	return 0;
-}
-
-/**
- * nd_is_uuid_unique - verify that no other namespace has @uuid
- * @dev: any device on a nvdimm_bus
- * @uuid: uuid to check
- */
-bool nd_is_uuid_unique(struct device *dev, u8 *uuid)
-{
-	struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev);
-
-	if (!nvdimm_bus)
-		return false;
-	WARN_ON_ONCE(!is_nvdimm_bus_locked(&nvdimm_bus->dev));
-	if (device_for_each_child(&nvdimm_bus->dev, uuid,
-				is_namespace_uuid_busy) != 0)
-		return false;
-	return true;
-}
-
 static ssize_t size_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
@@ -406,6 +350,9 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
 	struct nd_interleave_set *nd_set = nd_region->nd_set;
 	int type = nd_region_to_nstype(nd_region);
 
+	if (!is_nd_pmem(dev) && a == &dev_attr_pfn_seed.attr)
+		return 0;
+
 	if (a != &dev_attr_set_cookie.attr
 			&& a != &dev_attr_available_size.attr)
 		return a->mode;
@@ -487,6 +434,13 @@ static void nd_region_notify_driver_action(struct nvdimm_bus *nvdimm_bus,
 			nd_region_create_blk_seed(nd_region);
 		nvdimm_bus_unlock(dev);
 	}
+	if (is_nd_pfn(dev) && probe) {
+		nd_region = to_nd_region(dev->parent);
+		nvdimm_bus_lock(dev);
+		if (nd_region->pfn_seed == dev)
+			nd_region_create_pfn_seed(nd_region);
+		nvdimm_bus_unlock(dev);
+	}
 }
 
 void nd_region_probe_success(struct nvdimm_bus *nvdimm_bus, struct device *dev)
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 9582c5703b3c..91a469d55b8f 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -597,7 +597,7 @@ static u64 __of_translate_address(struct device_node *dev,
 		pbus = of_match_bus(parent);
 		pbus->count_cells(dev, &pna, &pns);
 		if (!OF_CHECK_COUNTS(pna, pns)) {
-			printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
+			pr_err("prom_parse: Bad cell count for %s\n",
 			       of_node_full_name(dev));
 			break;
 		}
diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 53826b84e0ec..c647bd1b6903 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -646,6 +646,7 @@ void of_changeset_init(struct of_changeset *ocs)
 	memset(ocs, 0, sizeof(*ocs));
 	INIT_LIST_HEAD(&ocs->entries);
 }
+EXPORT_SYMBOL_GPL(of_changeset_init);
 
 /**
  * of_changeset_destroy - Destroy a changeset
@@ -662,20 +663,9 @@ void of_changeset_destroy(struct of_changeset *ocs)
 	list_for_each_entry_safe_reverse(ce, cen, &ocs->entries, node)
 		__of_changeset_entry_destroy(ce);
 }
+EXPORT_SYMBOL_GPL(of_changeset_destroy);
 
-/**
- * of_changeset_apply - Applies a changeset
- *
- * @ocs:	changeset pointer
- *
- * Applies a changeset to the live tree.
- * Any side-effects of live tree state changes are applied here on
- * sucess, like creation/destruction of devices and side-effects
- * like creation of sysfs properties and directories.
- * Returns 0 on success, a negative error value in case of an error.
- * On error the partially applied effects are reverted.
- */
-int of_changeset_apply(struct of_changeset *ocs)
+int __of_changeset_apply(struct of_changeset *ocs)
 {
 	struct of_changeset_entry *ce;
 	int ret;
@@ -704,17 +694,30 @@ int of_changeset_apply(struct of_changeset *ocs)
 }
 
 /**
- * of_changeset_revert - Reverts an applied changeset
+ * of_changeset_apply - Applies a changeset
  *
  * @ocs:	changeset pointer
  *
- * Reverts a changeset returning the state of the tree to what it
- * was before the application.
- * Any side-effects like creation/destruction of devices and
- * removal of sysfs properties and directories are applied.
+ * Applies a changeset to the live tree.
+ * Any side-effects of live tree state changes are applied here on
+ * success, like creation/destruction of devices and side-effects
+ * like creation of sysfs properties and directories.
  * Returns 0 on success, a negative error value in case of an error.
+ * On error the partially applied effects are reverted.
  */
-int of_changeset_revert(struct of_changeset *ocs)
+int of_changeset_apply(struct of_changeset *ocs)
+{
+	int ret;
+
+	mutex_lock(&of_mutex);
+	ret = __of_changeset_apply(ocs);
+	mutex_unlock(&of_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(of_changeset_apply);
+
+int __of_changeset_revert(struct of_changeset *ocs)
 {
 	struct of_changeset_entry *ce;
 	int ret;
@@ -742,6 +745,29 @@ int of_changeset_revert(struct of_changeset *ocs)
 }
 
 /**
+ * of_changeset_revert - Reverts an applied changeset
+ *
+ * @ocs:	changeset pointer
+ *
+ * Reverts a changeset returning the state of the tree to what it
+ * was before the application.
+ * Any side-effects like creation/destruction of devices and
+ * removal of sysfs properties and directories are applied.
+ * Returns 0 on success, a negative error value in case of an error.
+ */
+int of_changeset_revert(struct of_changeset *ocs)
+{
+	int ret;
+
+	mutex_lock(&of_mutex);
+	ret = __of_changeset_revert(ocs);
+	mutex_unlock(&of_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(of_changeset_revert);
+
+/**
  * of_changeset_action - Perform a changeset action
  *
  * @ocs:	changeset pointer
@@ -779,3 +805,4 @@ int of_changeset_action(struct of_changeset *ocs, unsigned long action,
 	list_add_tail(&ce->node, &ocs->entries);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_changeset_action);
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 4fa916dffc91..706e3ff67f8b 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -473,6 +473,7 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource_table);
 
 struct of_intc_desc {
 	struct list_head	list;
+	of_irq_init_cb_t	irq_init_cb;
 	struct device_node	*dev;
 	struct device_node	*interrupt_parent;
 };
@@ -486,6 +487,7 @@ struct of_intc_desc {
  */
 void __init of_irq_init(const struct of_device_id *matches)
 {
+	const struct of_device_id *match;
 	struct device_node *np, *parent = NULL;
 	struct of_intc_desc *desc, *temp_desc;
 	struct list_head intc_desc_list, intc_parent_list;
@@ -493,10 +495,15 @@ void __init of_irq_init(const struct of_device_id *matches)
 	INIT_LIST_HEAD(&intc_desc_list);
 	INIT_LIST_HEAD(&intc_parent_list);
 
-	for_each_matching_node(np, matches) {
+	for_each_matching_node_and_match(np, matches, &match) {
 		if (!of_find_property(np, "interrupt-controller", NULL) ||
 				!of_device_is_available(np))
 			continue;
+
+		if (WARN(!match->data, "of_irq_init: no init function for %s\n",
+			 match->compatible))
+			continue;
+
 		/*
 		 * Here, we allocate and populate an of_intc_desc with the node
 		 * pointer, interrupt-parent device_node etc.
@@ -507,6 +514,7 @@ void __init of_irq_init(const struct of_device_id *matches)
 			goto err;
 		}
 
+		desc->irq_init_cb = match->data;
 		desc->dev = of_node_get(np);
 		desc->interrupt_parent = of_irq_find_parent(np);
 		if (desc->interrupt_parent == np)
@@ -526,27 +534,18 @@ void __init of_irq_init(const struct of_device_id *matches)
 		 * The assumption is that NULL parent means a root controller.
 		 */
 		list_for_each_entry_safe(desc, temp_desc, &intc_desc_list, list) {
-			const struct of_device_id *match;
 			int ret;
-			of_irq_init_cb_t irq_init_cb;
 
 			if (desc->interrupt_parent != parent)
 				continue;
 
 			list_del(&desc->list);
-			match = of_match_node(matches, desc->dev);
-			if (WARN(!match->data,
-			    "of_irq_init: no init function for %s\n",
-			    match->compatible)) {
-				kfree(desc);
-				continue;
-			}
 
-			pr_debug("of_irq_init: init %s @ %p, parent %p\n",
-				 match->compatible,
+			pr_debug("of_irq_init: init %s (%p), parent %p\n",
+				 desc->dev->full_name,
 				 desc->dev, desc->interrupt_parent);
-			irq_init_cb = (of_irq_init_cb_t)match->data;
-			ret = irq_init_cb(desc->dev, desc->interrupt_parent);
+			ret = desc->irq_init_cb(desc->dev,
+						desc->interrupt_parent);
 			if (ret) {
 				kfree(desc);
 				continue;
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h
index 8e882e706cd8..829469faeb23 100644
--- a/drivers/of/of_private.h
+++ b/drivers/of/of_private.h
@@ -45,6 +45,8 @@ static inline struct device_node *kobj_to_device_node(struct kobject *kobj)
 extern int of_property_notify(int action, struct device_node *np,
 			      struct property *prop, struct property *old_prop);
 extern void of_node_release(struct kobject *kobj);
+extern int __of_changeset_apply(struct of_changeset *ocs);
+extern int __of_changeset_revert(struct of_changeset *ocs);
 #else /* CONFIG_OF_DYNAMIC */
 static inline int of_property_notify(int action, struct device_node *np,
 				     struct property *prop, struct property *old_prop)
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 54e5af9d7377..82250815e9a5 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -379,9 +379,9 @@ int of_overlay_create(struct device_node *tree)
 	}
 
 	/* apply the changeset */
-	err = of_changeset_apply(&ov->cset);
+	err = __of_changeset_apply(&ov->cset);
 	if (err) {
-		pr_err("%s: of_changeset_apply() failed for tree@%s\n",
+		pr_err("%s: __of_changeset_apply() failed for tree@%s\n",
 				__func__, tree->full_name);
 		goto err_revert_overlay;
 	}
@@ -511,7 +511,7 @@ int of_overlay_destroy(int id)
 
 
 	list_del(&ov->node);
-	of_changeset_revert(&ov->cset);
+	__of_changeset_revert(&ov->cset);
 	of_free_overlay_info(ov);
 	idr_remove(&ov_idr, id);
 	of_changeset_destroy(&ov->cset);
@@ -542,7 +542,7 @@ int of_overlay_destroy_all(void)
 	/* the tail of list is guaranteed to be safe to remove */
 	list_for_each_entry_safe_reverse(ov, ovn, &ov_list, node) {
 		list_del(&ov->node);
-		of_changeset_revert(&ov->cset);
+		__of_changeset_revert(&ov->cset);
 		of_free_overlay_info(ov);
 		idr_remove(&ov_idr, ov->id);
 		kfree(ov);
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index af98343614d8..8d103e4968be 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -31,6 +31,7 @@ const struct of_device_id of_default_bus_match_table[] = {
 #endif /* CONFIG_ARM_AMBA */
 	{} /* Empty terminated list */
 };
+EXPORT_SYMBOL(of_default_bus_match_table);
 
 static int of_dev_node_match(struct device *dev, void *data)
 {
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index e16ea5717b7f..979b6e415cea 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -530,18 +530,14 @@ static void __init of_unittest_changeset(void)
 	unittest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop\n");
 	unittest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n");
 	unittest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n");
-	mutex_lock(&of_mutex);
 	unittest(!of_changeset_apply(&chgset), "apply failed\n");
-	mutex_unlock(&of_mutex);
 
 	/* Make sure node names are constructed correctly */
 	unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
 		 "'%s' not added\n", n21->full_name);
 	of_node_put(np);
 
-	mutex_lock(&of_mutex);
 	unittest(!of_changeset_revert(&chgset), "revert failed\n");
-	mutex_unlock(&of_mutex);
 
 	of_changeset_destroy(&chgset);
 #endif
@@ -757,6 +753,11 @@ static void __init of_unittest_match_node(void)
 	}
 }
 
+static struct resource test_bus_res = {
+	.start = 0xfffffff8,
+	.end = 0xfffffff9,
+	.flags = IORESOURCE_MEM,
+};
 static const struct platform_device_info test_bus_info = {
 	.name = "unittest-bus",
 };
@@ -800,6 +801,15 @@ static void __init of_unittest_platform_populate(void)
 		return;
 	test_bus->dev.of_node = np;
 
+	/*
+	 * Add a dummy resource to the test bus node after it is
+	 * registered to catch problems with un-inserted resources. The
+	 * DT code doesn't insert the resources, and it has caused the
+	 * kernel to oops in the past. This makes sure the same bug
+	 * doesn't crop up again.
+	 */
+	platform_device_add_resources(test_bus, &test_bus_res, 1);
+
 	of_platform_populate(np, match, NULL, &test_bus->dev);
 	for_each_child_of_node(np, child) {
 		for_each_child_of_node(child, grandchild)
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 5ce5ef211bdb..3308427ed9f7 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -1,6 +1,6 @@
 /*
  * Parallel-port resource manager code.
- * 
+ *
  * Authors: David Campbell <campbell@tirian.che.curtin.edu.au>
  *          Tim Waugh <tim@cyberelk.demon.co.uk>
  *          Jose Renau <renau@acm.org>
@@ -54,16 +54,16 @@ static LIST_HEAD(drivers);
 static DEFINE_MUTEX(registration_lock);
 
 /* What you can do to a port that's gone away.. */
-static void dead_write_lines (struct parport *p, unsigned char b){}
-static unsigned char dead_read_lines (struct parport *p) { return 0; }
-static unsigned char dead_frob_lines (struct parport *p, unsigned char b,
+static void dead_write_lines(struct parport *p, unsigned char b){}
+static unsigned char dead_read_lines(struct parport *p) { return 0; }
+static unsigned char dead_frob_lines(struct parport *p, unsigned char b,
 			     unsigned char c) { return 0; }
-static void dead_onearg (struct parport *p){}
-static void dead_initstate (struct pardevice *d, struct parport_state *s) { }
-static void dead_state (struct parport *p, struct parport_state *s) { }
-static size_t dead_write (struct parport *p, const void *b, size_t l, int f)
+static void dead_onearg(struct parport *p){}
+static void dead_initstate(struct pardevice *d, struct parport_state *s) { }
+static void dead_state(struct parport *p, struct parport_state *s) { }
+static size_t dead_write(struct parport *p, const void *b, size_t l, int f)
 { return 0; }
-static size_t dead_read (struct parport *p, void *b, size_t l, int f)
+static size_t dead_read(struct parport *p, void *b, size_t l, int f)
 { return 0; }
 static struct parport_operations dead_ops = {
 	.write_data	= dead_write_lines,	/* data */
@@ -93,7 +93,7 @@ static struct parport_operations dead_ops = {
 	.ecp_write_data	= dead_write,		/* ecp */
 	.ecp_read_data	= dead_read,
 	.ecp_write_addr	= dead_write,
- 
+
 	.compat_write_data	= dead_write,	/* compat */
 	.nibble_read_data	= dead_read,	/* nibble */
 	.byte_read_data		= dead_read,	/* byte */
@@ -148,7 +148,7 @@ void parport_bus_exit(void)
 /*
  * iterates through all the drivers registered with the bus and sends the port
  * details to the match_port callback of the driver, so that the driver can
- * know about the new port that just regsitered with the bus and decide if it
+ * know about the new port that just registered with the bus and decide if it
  * wants to use this new port.
  */
 static int driver_check(struct device_driver *dev_drv, void *_port)
@@ -194,7 +194,7 @@ static void detach_driver_chain(struct parport *port)
 	struct parport_driver *drv;
 	/* caller has exclusive registration_lock */
 	list_for_each_entry(drv, &drivers, list)
-		drv->detach (port);
+		drv->detach(port);
 
 	/*
 	 * call the detach function of the drivers registered in
@@ -205,11 +205,13 @@ static void detach_driver_chain(struct parport *port)
 }
 
 /* Ask kmod for some lowlevel drivers. */
-static void get_lowlevel_driver (void)
+static void get_lowlevel_driver(void)
 {
-	/* There is no actual module called this: you should set
-	 * up an alias for modutils. */
-	request_module ("parport_lowlevel");
+	/*
+	 * There is no actual module called this: you should set
+	 * up an alias for modutils.
+	 */
+	request_module("parport_lowlevel");
 }
 
 /*
@@ -265,7 +267,7 @@ int __parport_register_driver(struct parport_driver *drv, struct module *owner,
 			      const char *mod_name)
 {
 	if (list_empty(&portlist))
-		get_lowlevel_driver ();
+		get_lowlevel_driver();
 
 	if (drv->devmodel) {
 		/* using device model */
@@ -328,7 +330,7 @@ static int port_detach(struct device *dev, void *_drv)
  *	finished by the time this function returns.
  **/
 
-void parport_unregister_driver (struct parport_driver *drv)
+void parport_unregister_driver(struct parport_driver *drv)
 {
 	struct parport *port;
 
@@ -343,6 +345,7 @@ void parport_unregister_driver (struct parport_driver *drv)
 	}
 	mutex_unlock(&registration_lock);
 }
+EXPORT_SYMBOL(parport_unregister_driver);
 
 static void free_port(struct device *dev)
 {
@@ -372,12 +375,13 @@ static void free_port(struct device *dev)
  *	until the matching parport_put_port() call.
  **/
 
-struct parport *parport_get_port (struct parport *port)
+struct parport *parport_get_port(struct parport *port)
 {
 	struct device *dev = get_device(&port->bus_dev);
 
 	return to_parport_dev(dev);
 }
+EXPORT_SYMBOL(parport_get_port);
 
 void parport_del_port(struct parport *port)
 {
@@ -394,10 +398,11 @@ EXPORT_SYMBOL(parport_del_port);
  *	zero (port is no longer used), free_port is called.
  **/
 
-void parport_put_port (struct parport *port)
+void parport_put_port(struct parport *port)
 {
 	put_device(&port->bus_dev);
 }
+EXPORT_SYMBOL(parport_put_port);
 
 /**
  *	parport_register_port - register a parallel port
@@ -439,10 +444,8 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma,
 	int ret;
 
 	tmp = kzalloc(sizeof(struct parport), GFP_KERNEL);
-	if (!tmp) {
-		printk(KERN_WARNING "parport: memory squeeze\n");
+	if (!tmp)
 		return NULL;
-	}
 
 	/* Init our structure */
 	tmp->base = base;
@@ -450,12 +453,12 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma,
 	tmp->dma = dma;
 	tmp->muxport = tmp->daisy = tmp->muxsel = -1;
 	tmp->modes = 0;
- 	INIT_LIST_HEAD(&tmp->list);
+	INIT_LIST_HEAD(&tmp->list);
 	tmp->devices = tmp->cad = NULL;
 	tmp->flags = 0;
 	tmp->ops = ops;
 	tmp->physport = tmp;
-	memset (tmp->probe_info, 0, 5 * sizeof (struct parport_device_info));
+	memset(tmp->probe_info, 0, 5 * sizeof(struct parport_device_info));
 	rwlock_init(&tmp->cad_lock);
 	spin_lock_init(&tmp->waitlist_lock);
 	spin_lock_init(&tmp->pardevice_lock);
@@ -463,12 +466,11 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma,
 	tmp->ieee1284.phase = IEEE1284_PH_FWD_IDLE;
 	sema_init(&tmp->ieee1284.irq, 0);
 	tmp->spintime = parport_default_spintime;
-	atomic_set (&tmp->ref_count, 1);
+	atomic_set(&tmp->ref_count, 1);
 	INIT_LIST_HEAD(&tmp->full_list);
 
 	name = kmalloc(15, GFP_KERNEL);
 	if (!name) {
-		printk(KERN_ERR "parport: memory squeeze\n");
 		kfree(tmp);
 		return NULL;
 	}
@@ -508,6 +510,7 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma,
 
 	return tmp;
 }
+EXPORT_SYMBOL(parport_register_port);
 
 /**
  *	parport_announce_port - tell device drivers about a parallel port
@@ -521,7 +524,7 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma,
  *	functions will be called, with @port as the parameter.
  **/
 
-void parport_announce_port (struct parport *port)
+void parport_announce_port(struct parport *port)
 {
 	int i;
 
@@ -531,9 +534,8 @@ void parport_announce_port (struct parport *port)
 #endif
 
 	if (!port->dev)
-		printk(KERN_WARNING "%s: fix this legacy "
-				"no-device port driver!\n",
-				port->name);
+		printk(KERN_WARNING "%s: fix this legacy no-device port driver!\n",
+		       port->name);
 
 	parport_proc_register(port);
 	mutex_lock(&registration_lock);
@@ -547,7 +549,7 @@ void parport_announce_port (struct parport *port)
 	spin_unlock_irq(&parportlist_lock);
 
 	/* Let drivers know that new port(s) has arrived. */
-	attach_driver_chain (port);
+	attach_driver_chain(port);
 	for (i = 1; i < 3; i++) {
 		struct parport *slave = port->slaves[i-1];
 		if (slave)
@@ -555,6 +557,7 @@ void parport_announce_port (struct parport *port)
 	}
 	mutex_unlock(&registration_lock);
 }
+EXPORT_SYMBOL(parport_announce_port);
 
 /**
  *	parport_remove_port - deregister a parallel port
@@ -582,7 +585,7 @@ void parport_remove_port(struct parport *port)
 	mutex_lock(&registration_lock);
 
 	/* Spread the word. */
-	detach_driver_chain (port);
+	detach_driver_chain(port);
 
 #ifdef CONFIG_PARPORT_1284
 	/* Forget the IEEE1284.3 topology of the port. */
@@ -616,6 +619,7 @@ void parport_remove_port(struct parport *port)
 			parport_put_port(slave);
 	}
 }
+EXPORT_SYMBOL(parport_remove_port);
 
 /**
  *	parport_register_device - register a device on a parallel port
@@ -689,14 +693,14 @@ void parport_remove_port(struct parport *port)
 struct pardevice *
 parport_register_device(struct parport *port, const char *name,
 			int (*pf)(void *), void (*kf)(void *),
-			void (*irq_func)(void *), 
+			void (*irq_func)(void *),
 			int flags, void *handle)
 {
 	struct pardevice *tmp;
 
 	if (port->physport->flags & PARPORT_FLAG_EXCL) {
 		/* An exclusive device is registered. */
-		printk (KERN_DEBUG "%s: no more devices allowed\n",
+		printk(KERN_DEBUG "%s: no more devices allowed\n",
 			port->name);
 		return NULL;
 	}
@@ -722,28 +726,24 @@ parport_register_device(struct parport *port, const char *name,
 		}
 	}
 
-	/* We up our own module reference count, and that of the port
-           on which a device is to be registered, to ensure that
-           neither of us gets unloaded while we sleep in (e.g.)
-           kmalloc.
-         */
-	if (!try_module_get(port->ops->owner)) {
+	/*
+	 * We up our own module reference count, and that of the port
+	 * on which a device is to be registered, to ensure that
+	 * neither of us gets unloaded while we sleep in (e.g.)
+	 * kmalloc.
+	 */
+	if (!try_module_get(port->ops->owner))
 		return NULL;
-	}
-		
-	parport_get_port (port);
+
+	parport_get_port(port);
 
 	tmp = kmalloc(sizeof(struct pardevice), GFP_KERNEL);
-	if (tmp == NULL) {
-		printk(KERN_WARNING "%s: memory squeeze, couldn't register %s.\n", port->name, name);
+	if (!tmp)
 		goto out;
-	}
 
 	tmp->state = kmalloc(sizeof(struct parport_state), GFP_KERNEL);
-	if (tmp->state == NULL) {
-		printk(KERN_WARNING "%s: memory squeeze, couldn't register %s.\n", port->name, name);
+	if (!tmp->state)
 		goto out_free_pardevice;
-	}
 
 	tmp->name = name;
 	tmp->port = port;
@@ -767,19 +767,21 @@ parport_register_device(struct parport *port, const char *name,
 
 	if (flags & PARPORT_DEV_EXCL) {
 		if (port->physport->devices) {
-			spin_unlock (&port->physport->pardevice_lock);
-			printk (KERN_DEBUG
-				"%s: cannot grant exclusive access for "
-				"device %s\n", port->name, name);
+			spin_unlock(&port->physport->pardevice_lock);
+			printk(KERN_DEBUG
+				"%s: cannot grant exclusive access for device %s\n",
+				port->name, name);
 			goto out_free_all;
 		}
 		port->flags |= PARPORT_FLAG_EXCL;
 	}
 
 	tmp->next = port->physport->devices;
-	wmb(); /* Make sure that tmp->next is written before it's
-                  added to the list; see comments marked 'no locking
-                  required' */
+	wmb(); /*
+		* Make sure that tmp->next is written before it's
+		* added to the list; see comments marked 'no locking
+		* required'
+		*/
 	if (port->physport->devices)
 		port->physport->devices->prev = tmp;
 	port->physport->devices = tmp;
@@ -805,11 +807,12 @@ parport_register_device(struct parport *port, const char *name,
  out_free_pardevice:
 	kfree(tmp);
  out:
-	parport_put_port (port);
+	parport_put_port(port);
 	module_put(port->ops->owner);
 
 	return NULL;
 }
+EXPORT_SYMBOL(parport_register_device);
 
 static void free_pardevice(struct device *dev)
 {
@@ -968,7 +971,7 @@ void parport_unregister_device(struct pardevice *dev)
 	struct parport *port;
 
 #ifdef PARPORT_PARANOID
-	if (dev == NULL) {
+	if (!dev) {
 		printk(KERN_ERR "parport_unregister_device: passed NULL\n");
 		return;
 	}
@@ -985,7 +988,7 @@ void parport_unregister_device(struct pardevice *dev)
 	if (port->cad == dev) {
 		printk(KERN_DEBUG "%s: %s forgot to release port\n",
 		       port->name, dev->name);
-		parport_release (dev);
+		parport_release(dev);
 	}
 
 	spin_lock(&port->pardevice_lock);
@@ -1001,8 +1004,10 @@ void parport_unregister_device(struct pardevice *dev)
 
 	spin_unlock(&port->pardevice_lock);
 
-	/* Make sure we haven't left any pointers around in the wait
-	 * list. */
+	/*
+	 * Make sure we haven't left any pointers around in the wait
+	 * list.
+	 */
 	spin_lock_irq(&port->waitlist_lock);
 	if (dev->waitprev || dev->waitnext || port->waithead == dev) {
 		if (dev->waitprev)
@@ -1023,8 +1028,9 @@ void parport_unregister_device(struct pardevice *dev)
 		kfree(dev);
 
 	module_put(port->ops->owner);
-	parport_put_port (port);
+	parport_put_port(port);
 }
+EXPORT_SYMBOL(parport_unregister_device);
 
 /**
  *	parport_find_number - find a parallel port by number
@@ -1038,23 +1044,24 @@ void parport_unregister_device(struct pardevice *dev)
  *	gives you, use parport_put_port().
  */
 
-struct parport *parport_find_number (int number)
+struct parport *parport_find_number(int number)
 {
 	struct parport *port, *result = NULL;
 
 	if (list_empty(&portlist))
-		get_lowlevel_driver ();
+		get_lowlevel_driver();
 
-	spin_lock (&parportlist_lock);
+	spin_lock(&parportlist_lock);
 	list_for_each_entry(port, &portlist, list) {
 		if (port->number == number) {
-			result = parport_get_port (port);
+			result = parport_get_port(port);
 			break;
 		}
 	}
-	spin_unlock (&parportlist_lock);
+	spin_unlock(&parportlist_lock);
 	return result;
 }
+EXPORT_SYMBOL(parport_find_number);
 
 /**
  *	parport_find_base - find a parallel port by base address
@@ -1068,23 +1075,24 @@ struct parport *parport_find_number (int number)
  *	gives you, use parport_put_port().
  */
 
-struct parport *parport_find_base (unsigned long base)
+struct parport *parport_find_base(unsigned long base)
 {
 	struct parport *port, *result = NULL;
 
 	if (list_empty(&portlist))
-		get_lowlevel_driver ();
+		get_lowlevel_driver();
 
-	spin_lock (&parportlist_lock);
+	spin_lock(&parportlist_lock);
 	list_for_each_entry(port, &portlist, list) {
 		if (port->base == base) {
-			result = parport_get_port (port);
+			result = parport_get_port(port);
 			break;
 		}
 	}
-	spin_unlock (&parportlist_lock);
+	spin_unlock(&parportlist_lock);
 	return result;
 }
+EXPORT_SYMBOL(parport_find_base);
 
 /**
  *	parport_claim - claim access to a parallel port device
@@ -1111,8 +1119,9 @@ int parport_claim(struct pardevice *dev)
 	}
 
 	/* Preempt any current device */
-	write_lock_irqsave (&port->cad_lock, flags);
-	if ((oldcad = port->cad) != NULL) {
+	write_lock_irqsave(&port->cad_lock, flags);
+	oldcad = port->cad;
+	if (oldcad) {
 		if (oldcad->preempt) {
 			if (oldcad->preempt(oldcad->private))
 				goto blocked;
@@ -1121,8 +1130,10 @@ int parport_claim(struct pardevice *dev)
 			goto blocked;
 
 		if (port->cad != oldcad) {
-			/* I think we'll actually deadlock rather than
-                           get here, but just in case.. */
+			/*
+			 * I think we'll actually deadlock rather than
+			 * get here, but just in case..
+			 */
 			printk(KERN_WARNING
 			       "%s: %s released port when preempted!\n",
 			       port->name, oldcad->name);
@@ -1136,7 +1147,7 @@ int parport_claim(struct pardevice *dev)
 		dev->waiting = 0;
 
 		/* Take ourselves out of the wait list again.  */
-		spin_lock_irq (&port->waitlist_lock);
+		spin_lock_irq(&port->waitlist_lock);
 		if (dev->waitprev)
 			dev->waitprev->waitnext = dev->waitnext;
 		else
@@ -1145,7 +1156,7 @@ int parport_claim(struct pardevice *dev)
 			dev->waitnext->waitprev = dev->waitprev;
 		else
 			port->waittail = dev->waitprev;
-		spin_unlock_irq (&port->waitlist_lock);
+		spin_unlock_irq(&port->waitlist_lock);
 		dev->waitprev = dev->waitnext = NULL;
 	}
 
@@ -1162,7 +1173,7 @@ int parport_claim(struct pardevice *dev)
 	/* If it's a daisy chain device, select it. */
 	if (dev->daisy >= 0) {
 		/* This could be lazier. */
-		if (!parport_daisy_select (port, dev->daisy,
+		if (!parport_daisy_select(port, dev->daisy,
 					   IEEE1284_MODE_COMPAT))
 			port->daisy = dev->daisy;
 	}
@@ -1175,13 +1186,15 @@ int parport_claim(struct pardevice *dev)
 	return 0;
 
 blocked:
-	/* If this is the first time we tried to claim the port, register an
-	   interest.  This is only allowed for devices sleeping in
-	   parport_claim_or_block(), or those with a wakeup function.  */
+	/*
+	 * If this is the first time we tried to claim the port, register an
+	 * interest.  This is only allowed for devices sleeping in
+	 * parport_claim_or_block(), or those with a wakeup function.
+	 */
 
 	/* The cad_lock is still held for writing here */
 	if (dev->waiting & 2 || dev->wakeup) {
-		spin_lock (&port->waitlist_lock);
+		spin_lock(&port->waitlist_lock);
 		if (test_and_set_bit(0, &dev->waiting) == 0) {
 			/* First add ourselves to the end of the wait list. */
 			dev->waitnext = NULL;
@@ -1192,11 +1205,12 @@ blocked:
 			} else
 				port->waithead = port->waittail = dev;
 		}
-		spin_unlock (&port->waitlist_lock);
+		spin_unlock(&port->waitlist_lock);
 	}
-	write_unlock_irqrestore (&port->cad_lock, flags);
+	write_unlock_irqrestore(&port->cad_lock, flags);
 	return -EAGAIN;
 }
+EXPORT_SYMBOL(parport_claim);
 
 /**
  *	parport_claim_or_block - claim access to a parallel port device
@@ -1212,8 +1226,10 @@ int parport_claim_or_block(struct pardevice *dev)
 {
 	int r;
 
-	/* Signal to parport_claim() that we can wait even without a
-	   wakeup function.  */
+	/*
+	 * Signal to parport_claim() that we can wait even without a
+	 * wakeup function.
+	 */
 	dev->waiting = 2;
 
 	/* Try to claim the port.  If this fails, we need to sleep.  */
@@ -1231,14 +1247,15 @@ int parport_claim_or_block(struct pardevice *dev)
 		 * See also parport_release()
 		 */
 
-		/* If dev->waiting is clear now, an interrupt
-		   gave us the port and we would deadlock if we slept.  */
+		/*
+		 * If dev->waiting is clear now, an interrupt
+		 * gave us the port and we would deadlock if we slept.
+		 */
 		if (dev->waiting) {
 			wait_event_interruptible(dev->wait_q,
 						 !dev->waiting);
-			if (signal_pending (current)) {
+			if (signal_pending(current))
 				return -EINTR;
-			}
 			r = 1;
 		} else {
 			r = 0;
@@ -1250,15 +1267,15 @@ int parport_claim_or_block(struct pardevice *dev)
 
 #ifdef PARPORT_DEBUG_SHARING
 		if (dev->port->physport->cad != dev)
-			printk(KERN_DEBUG "%s: exiting parport_claim_or_block "
-			       "but %s owns port!\n", dev->name,
-			       dev->port->physport->cad ?
+			printk(KERN_DEBUG "%s: exiting parport_claim_or_block but %s owns port!\n",
+			       dev->name, dev->port->physport->cad ?
 			       dev->port->physport->cad->name:"nobody");
 #endif
 	}
 	dev->waiting = 0;
 	return r;
 }
+EXPORT_SYMBOL(parport_claim_or_block);
 
 /**
  *	parport_release - give up access to a parallel port device
@@ -1278,9 +1295,9 @@ void parport_release(struct pardevice *dev)
 	/* Make sure that dev is the current device */
 	write_lock_irqsave(&port->cad_lock, flags);
 	if (port->cad != dev) {
-		write_unlock_irqrestore (&port->cad_lock, flags);
-		printk(KERN_WARNING "%s: %s tried to release parport "
-		       "when not owner\n", port->name, dev->name);
+		write_unlock_irqrestore(&port->cad_lock, flags);
+		printk(KERN_WARNING "%s: %s tried to release parport when not owner\n",
+		       port->name, dev->name);
 		return;
 	}
 
@@ -1293,7 +1310,7 @@ void parport_release(struct pardevice *dev)
 
 	/* If this is a daisy device, deselect it. */
 	if (dev->daisy >= 0) {
-		parport_daisy_deselect_all (port);
+		parport_daisy_deselect_all(port);
 		port->daisy = -1;
 	}
 #endif
@@ -1304,8 +1321,10 @@ void parport_release(struct pardevice *dev)
 	/* Save control registers */
 	port->ops->save_state(port, dev->state);
 
-	/* If anybody is waiting, find out who's been there longest and
-	   then wake them up. (Note: no locking required) */
+	/*
+	 * If anybody is waiting, find out who's been there longest and
+	 * then wake them up. (Note: no locking required)
+	 */
 	/* !!! LOCKING IS NEEDED HERE */
 	for (pd = port->waithead; pd; pd = pd->waitnext) {
 		if (pd->waiting & 2) { /* sleeping in claim_or_block */
@@ -1322,14 +1341,17 @@ void parport_release(struct pardevice *dev)
 		}
 	}
 
-	/* Nobody was waiting, so walk the list to see if anyone is
-	   interested in being woken up. (Note: no locking required) */
+	/*
+	 * Nobody was waiting, so walk the list to see if anyone is
+	 * interested in being woken up. (Note: no locking required)
+	 */
 	/* !!! LOCKING IS NEEDED HERE */
-	for (pd = port->devices; (port->cad == NULL) && pd; pd = pd->next) {
+	for (pd = port->devices; !port->cad && pd; pd = pd->next) {
 		if (pd->wakeup && pd != dev)
 			pd->wakeup(pd->private);
 	}
 }
+EXPORT_SYMBOL(parport_release);
 
 irqreturn_t parport_irq_handler(int irq, void *dev_id)
 {
@@ -1339,22 +1361,6 @@ irqreturn_t parport_irq_handler(int irq, void *dev_id)
 
 	return IRQ_HANDLED;
 }
-
-/* Exported symbols for modules. */
-
-EXPORT_SYMBOL(parport_claim);
-EXPORT_SYMBOL(parport_claim_or_block);
-EXPORT_SYMBOL(parport_release);
-EXPORT_SYMBOL(parport_register_port);
-EXPORT_SYMBOL(parport_announce_port);
-EXPORT_SYMBOL(parport_remove_port);
-EXPORT_SYMBOL(parport_unregister_driver);
-EXPORT_SYMBOL(parport_register_device);
-EXPORT_SYMBOL(parport_unregister_device);
-EXPORT_SYMBOL(parport_get_port);
-EXPORT_SYMBOL(parport_put_port);
-EXPORT_SYMBOL(parport_find_number);
-EXPORT_SYMBOL(parport_find_base);
 EXPORT_SYMBOL(parport_irq_handler);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index d3f32d6417ef..9a033e8ee9a4 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -531,7 +531,7 @@ static bool acpi_pci_need_resume(struct pci_dev *dev)
 	return !!adev->power.flags.dsw_present;
 }
 
-static struct pci_platform_pm_ops acpi_pci_platform_pm = {
+static const struct pci_platform_pm_ops acpi_pci_platform_pm = {
 	.is_manageable = acpi_pci_power_manageable,
 	.set_state = acpi_pci_set_power_state,
 	.choose_state = acpi_pci_choose_state,
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 314db8c1047a..d1a7105b9276 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -527,9 +527,9 @@ static void pci_restore_bars(struct pci_dev *dev)
 		pci_update_resource(dev, i);
 }
 
-static struct pci_platform_pm_ops *pci_platform_pm;
+static const struct pci_platform_pm_ops *pci_platform_pm;
 
-int pci_set_platform_pm(struct pci_platform_pm_ops *ops)
+int pci_set_platform_pm(const struct pci_platform_pm_ops *ops)
 {
 	if (!ops->is_manageable || !ops->set_state || !ops->choose_state
 	    || !ops->sleep_wake)
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d390fc1475ec..f6f151a42147 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -68,7 +68,7 @@ struct pci_platform_pm_ops {
 	bool (*need_resume)(struct pci_dev *dev);
 };
 
-int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
+int pci_set_platform_pm(const struct pci_platform_pm_ops *ops);
 void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
 void pci_power_up(struct pci_dev *dev);
 void pci_disable_enabled_device(struct pci_dev *dev);
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 03cb3ea2d2c0..e7e117d5dbbe 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -118,6 +118,13 @@ config PHY_RCAR_GEN2
 	help
 	  Support for USB PHY found on Renesas R-Car generation 2 SoCs.
 
+config PHY_RCAR_GEN3_USB2
+	tristate "Renesas R-Car generation 3 USB 2.0 PHY driver"
+	depends on OF && ARCH_SHMOBILE
+	select GENERIC_PHY
+	help
+	  Support for USB 2.0 PHY found on Renesas R-Car generation 3 SoCs.
+
 config OMAP_CONTROL_PHY
 	tristate "OMAP CONTROL PHY Driver"
 	depends on ARCH_OMAP2PLUS || COMPILE_TEST
@@ -215,6 +222,15 @@ config PHY_MT65XX_USB3
 	  for mt65xx SoCs. it supports two usb2.0 ports and
 	  one usb3.0 port.
 
+config PHY_HI6220_USB
+	tristate "hi6220 USB PHY support"
+	select GENERIC_PHY
+	select MFD_SYSCON
+	help
+	  Enable this to support the HISILICON HI6220 USB PHY.
+
+	  To compile this driver as a module, choose M here.
+
 config PHY_SUN4I_USB
 	tristate "Allwinner sunxi SoC USB PHY driver"
 	depends on ARCH_SUNXI && HAS_IOMEM && OF
@@ -374,11 +390,11 @@ config PHY_TUSB1210
 
 config PHY_BRCMSTB_SATA
 	tristate "Broadcom STB SATA PHY driver"
-	depends on ARCH_BRCMSTB
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC
 	depends on OF
 	select GENERIC_PHY
 	help
-	  Enable this to support the SATA3 PHY on 28nm Broadcom STB SoCs.
+	  Enable this to support the SATA3 PHY on 28nm or 40nm Broadcom STB SoCs.
 	  Likely useful only with CONFIG_SATA_BRCMSTB enabled.
 
 config PHY_CYGNUS_PCIE
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 075db1a81aa5..c80f09df3bb8 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -17,12 +17,14 @@ obj-$(CONFIG_PHY_MVEBU_SATA)		+= phy-mvebu-sata.o
 obj-$(CONFIG_PHY_MIPHY28LP) 		+= phy-miphy28lp.o
 obj-$(CONFIG_PHY_MIPHY365X)		+= phy-miphy365x.o
 obj-$(CONFIG_PHY_RCAR_GEN2)		+= phy-rcar-gen2.o
+obj-$(CONFIG_PHY_RCAR_GEN3_USB2)	+= phy-rcar-gen3-usb2.o
 obj-$(CONFIG_OMAP_CONTROL_PHY)		+= phy-omap-control.o
 obj-$(CONFIG_OMAP_USB2)			+= phy-omap-usb2.o
 obj-$(CONFIG_TI_PIPE3)			+= phy-ti-pipe3.o
 obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o
 obj-$(CONFIG_PHY_EXYNOS5250_SATA)	+= phy-exynos5250-sata.o
 obj-$(CONFIG_PHY_HIX5HD2_SATA)		+= phy-hix5hd2-sata.o
+obj-$(CONFIG_PHY_HI6220_USB)		+= phy-hi6220-usb.o
 obj-$(CONFIG_PHY_MT65XX_USB3)		+= phy-mt65xx-usb3.o
 obj-$(CONFIG_PHY_SUN4I_USB)		+= phy-sun4i-usb.o
 obj-$(CONFIG_PHY_SUN9I_USB)		+= phy-sun9i-usb.o
diff --git a/drivers/phy/phy-berlin-usb.c b/drivers/phy/phy-berlin-usb.c
index 797ba17c404f..2017751ede26 100644
--- a/drivers/phy/phy-berlin-usb.c
+++ b/drivers/phy/phy-berlin-usb.c
@@ -9,11 +9,9 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/reset.h>
@@ -195,7 +193,6 @@ static int phy_berlin_usb_probe(struct platform_device *pdev)
 		return PTR_ERR(phy);
 	}
 
-	platform_set_drvdata(pdev, priv);
 	phy_set_drvdata(phy, priv);
 
 	phy_provider =
diff --git a/drivers/phy/phy-brcmstb-sata.c b/drivers/phy/phy-brcmstb-sata.c
index cd9dba820566..a23172ff40e3 100644
--- a/drivers/phy/phy-brcmstb-sata.c
+++ b/drivers/phy/phy-brcmstb-sata.c
@@ -26,13 +26,21 @@
 
 #define SATA_MDIO_BANK_OFFSET				0x23c
 #define SATA_MDIO_REG_OFFSET(ofs)			((ofs) * 4)
-#define SATA_MDIO_REG_SPACE_SIZE			0x1000
-#define SATA_MDIO_REG_LENGTH				0x1f00
 
 #define MAX_PORTS					2
 
 /* Register offset between PHYs in PCB space */
-#define SATA_MDIO_REG_SPACE_SIZE			0x1000
+#define SATA_MDIO_REG_28NM_SPACE_SIZE			0x1000
+
+/* The older SATA PHY registers duplicated per port registers within the map,
+ * rather than having a separate map per port.
+ */
+#define SATA_MDIO_REG_40NM_SPACE_SIZE			0x10
+
+enum brcm_sata_phy_version {
+	BRCM_SATA_PHY_28NM,
+	BRCM_SATA_PHY_40NM,
+};
 
 struct brcm_sata_port {
 	int portnum;
@@ -44,11 +52,12 @@ struct brcm_sata_port {
 struct brcm_sata_phy {
 	struct device *dev;
 	void __iomem *phy_base;
+	enum brcm_sata_phy_version version;
 
 	struct brcm_sata_port phys[MAX_PORTS];
 };
 
-enum sata_mdio_phy_regs_28nm {
+enum sata_mdio_phy_regs {
 	PLL_REG_BANK_0				= 0x50,
 	PLL_REG_BANK_0_PLLCONTROL_0		= 0x81,
 
@@ -66,8 +75,16 @@ enum sata_mdio_phy_regs_28nm {
 static inline void __iomem *brcm_sata_phy_base(struct brcm_sata_port *port)
 {
 	struct brcm_sata_phy *priv = port->phy_priv;
+	u32 offset = 0;
+
+	if (priv->version == BRCM_SATA_PHY_28NM)
+		offset = SATA_MDIO_REG_28NM_SPACE_SIZE;
+	else if (priv->version == BRCM_SATA_PHY_40NM)
+		offset = SATA_MDIO_REG_40NM_SPACE_SIZE;
+	else
+		dev_err(priv->dev, "invalid phy version\n");
 
-	return priv->phy_base + (port->portnum * SATA_MDIO_REG_SPACE_SIZE);
+	return priv->phy_base + (port->portnum * offset);
 }
 
 static void brcm_sata_mdio_wr(void __iomem *addr, u32 bank, u32 ofs,
@@ -86,7 +103,7 @@ static void brcm_sata_mdio_wr(void __iomem *addr, u32 bank, u32 ofs,
 #define FMAX_VAL_DEFAULT	0x3df
 #define FMAX_VAL_SSC		0x83
 
-static void brcm_sata_cfg_ssc_28nm(struct brcm_sata_port *port)
+static void brcm_sata_cfg_ssc(struct brcm_sata_port *port)
 {
 	void __iomem *base = brcm_sata_phy_base(port);
 	struct brcm_sata_phy *priv = port->phy_priv;
@@ -117,18 +134,21 @@ static int brcm_sata_phy_init(struct phy *phy)
 {
 	struct brcm_sata_port *port = phy_get_drvdata(phy);
 
-	brcm_sata_cfg_ssc_28nm(port);
+	brcm_sata_cfg_ssc(port);
 
 	return 0;
 }
 
-static const struct phy_ops phy_ops_28nm = {
+static const struct phy_ops phy_ops = {
 	.init		= brcm_sata_phy_init,
 	.owner		= THIS_MODULE,
 };
 
 static const struct of_device_id brcm_sata_phy_of_match[] = {
-	{ .compatible	= "brcm,bcm7445-sata-phy" },
+	{ .compatible	= "brcm,bcm7445-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_28NM },
+	{ .compatible	= "brcm,bcm7425-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_40NM },
 	{},
 };
 MODULE_DEVICE_TABLE(of, brcm_sata_phy_of_match);
@@ -137,6 +157,7 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *dn = dev->of_node, *child;
+	const struct of_device_id *of_id;
 	struct brcm_sata_phy *priv;
 	struct resource *res;
 	struct phy_provider *provider;
@@ -156,6 +177,12 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->phy_base))
 		return PTR_ERR(priv->phy_base);
 
+	of_id = of_match_node(brcm_sata_phy_of_match, dn);
+	if (of_id)
+		priv->version = (enum brcm_sata_phy_version)of_id->data;
+	else
+		priv->version = BRCM_SATA_PHY_28NM;
+
 	for_each_available_child_of_node(dn, child) {
 		unsigned int id;
 		struct brcm_sata_port *port;
@@ -181,7 +208,7 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 		port = &priv->phys[id];
 		port->portnum = id;
 		port->phy_priv = priv;
-		port->phy = devm_phy_create(dev, child, &phy_ops_28nm);
+		port->phy = devm_phy_create(dev, child, &phy_ops);
 		port->ssc_en = of_property_read_bool(child, "brcm,enable-ssc");
 		if (IS_ERR(port->phy)) {
 			dev_err(dev, "failed to create PHY\n");
diff --git a/drivers/phy/phy-hi6220-usb.c b/drivers/phy/phy-hi6220-usb.c
new file mode 100644
index 000000000000..b2141cbd4cf6
--- /dev/null
+++ b/drivers/phy/phy-hi6220-usb.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
+#include <linux/regmap.h>
+
+#define SC_PERIPH_CTRL4			0x00c
+
+#define CTRL4_PICO_SIDDQ		BIT(6)
+#define CTRL4_PICO_OGDISABLE		BIT(8)
+#define CTRL4_PICO_VBUSVLDEXT		BIT(10)
+#define CTRL4_PICO_VBUSVLDEXTSEL	BIT(11)
+#define CTRL4_OTG_PHY_SEL		BIT(21)
+
+#define SC_PERIPH_CTRL5			0x010
+
+#define CTRL5_USBOTG_RES_SEL		BIT(3)
+#define CTRL5_PICOPHY_ACAENB		BIT(4)
+#define CTRL5_PICOPHY_BC_MODE		BIT(5)
+#define CTRL5_PICOPHY_CHRGSEL		BIT(6)
+#define CTRL5_PICOPHY_VDATSRCEND	BIT(7)
+#define CTRL5_PICOPHY_VDATDETENB	BIT(8)
+#define CTRL5_PICOPHY_DCDENB		BIT(9)
+#define CTRL5_PICOPHY_IDDIG		BIT(10)
+
+#define SC_PERIPH_CTRL8			0x018
+#define SC_PERIPH_RSTEN0		0x300
+#define SC_PERIPH_RSTDIS0		0x304
+
+#define RST0_USBOTG_BUS			BIT(4)
+#define RST0_POR_PICOPHY		BIT(5)
+#define RST0_USBOTG			BIT(6)
+#define RST0_USBOTG_32K			BIT(7)
+
+#define EYE_PATTERN_PARA		0x7053348c
+
+struct hi6220_priv {
+	struct regmap *reg;
+	struct device *dev;
+};
+
+static void hi6220_phy_init(struct hi6220_priv *priv)
+{
+	struct regmap *reg = priv->reg;
+	u32 val, mask;
+
+	val = RST0_USBOTG_BUS | RST0_POR_PICOPHY |
+	      RST0_USBOTG | RST0_USBOTG_32K;
+	mask = val;
+	regmap_update_bits(reg, SC_PERIPH_RSTEN0, mask, val);
+	regmap_update_bits(reg, SC_PERIPH_RSTDIS0, mask, val);
+}
+
+static int hi6220_phy_setup(struct hi6220_priv *priv, bool on)
+{
+	struct regmap *reg = priv->reg;
+	u32 val, mask;
+	int ret;
+
+	if (on) {
+		val = CTRL5_USBOTG_RES_SEL | CTRL5_PICOPHY_ACAENB;
+		mask = val | CTRL5_PICOPHY_BC_MODE;
+		ret = regmap_update_bits(reg, SC_PERIPH_CTRL5, mask, val);
+		if (ret)
+			goto out;
+
+		val =  CTRL4_PICO_VBUSVLDEXT | CTRL4_PICO_VBUSVLDEXTSEL |
+		       CTRL4_OTG_PHY_SEL;
+		mask = val | CTRL4_PICO_SIDDQ | CTRL4_PICO_OGDISABLE;
+		ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val);
+		if (ret)
+			goto out;
+
+		ret = regmap_write(reg, SC_PERIPH_CTRL8, EYE_PATTERN_PARA);
+		if (ret)
+			goto out;
+	} else {
+		val = CTRL4_PICO_SIDDQ;
+		mask = val;
+		ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val);
+		if (ret)
+			goto out;
+	}
+
+	return 0;
+out:
+	dev_err(priv->dev, "failed to setup phy ret: %d\n", ret);
+	return ret;
+}
+
+static int hi6220_phy_start(struct phy *phy)
+{
+	struct hi6220_priv *priv = phy_get_drvdata(phy);
+
+	return hi6220_phy_setup(priv, true);
+}
+
+static int hi6220_phy_exit(struct phy *phy)
+{
+	struct hi6220_priv *priv = phy_get_drvdata(phy);
+
+	return hi6220_phy_setup(priv, false);
+}
+
+static struct phy_ops hi6220_phy_ops = {
+	.init		= hi6220_phy_start,
+	.exit		= hi6220_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static int hi6220_phy_probe(struct platform_device *pdev)
+{
+	struct phy_provider *phy_provider;
+	struct device *dev = &pdev->dev;
+	struct phy *phy;
+	struct hi6220_priv *priv;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+	priv->reg = syscon_regmap_lookup_by_phandle(dev->of_node,
+					"hisilicon,peripheral-syscon");
+	if (IS_ERR(priv->reg)) {
+		dev_err(dev, "no hisilicon,peripheral-syscon\n");
+		return PTR_ERR(priv->reg);
+	}
+
+	hi6220_phy_init(priv);
+
+	phy = devm_phy_create(dev, NULL, &hi6220_phy_ops);
+	if (IS_ERR(phy))
+		return PTR_ERR(phy);
+
+	phy_set_drvdata(phy, priv);
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct of_device_id hi6220_phy_of_match[] = {
+	{.compatible = "hisilicon,hi6220-usb-phy",},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, hi6220_phy_of_match);
+
+static struct platform_driver hi6220_phy_driver = {
+	.probe	= hi6220_phy_probe,
+	.driver = {
+		.name	= "hi6220-usb-phy",
+		.of_match_table	= hi6220_phy_of_match,
+	}
+};
+module_platform_driver(hi6220_phy_driver);
+
+MODULE_DESCRIPTION("HISILICON HI6220 USB PHY driver");
+MODULE_ALIAS("platform:hi6220-usb-phy");
+MODULE_LICENSE("GPL");
diff --git a/drivers/phy/phy-mt65xx-usb3.c b/drivers/phy/phy-mt65xx-usb3.c
index e427c3b788ff..c0e7b4b0cf5c 100644
--- a/drivers/phy/phy-mt65xx-usb3.c
+++ b/drivers/phy/phy-mt65xx-usb3.c
@@ -17,6 +17,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/phy/phy.h>
@@ -27,6 +28,7 @@
  * relative to USB3_SIF2_BASE base address
  */
 #define SSUSB_SIFSLV_SPLLC		0x0000
+#define SSUSB_SIFSLV_U2FREQ		0x0100
 
 /* offsets of sub-segment in each port registers */
 #define SSUSB_SIFSLV_U2PHY_COM_BASE	0x0000
@@ -41,6 +43,7 @@
 #define PA2_RG_SIF_U2PLL_FORCE_EN	BIT(18)
 
 #define U3P_USBPHYACR5		(SSUSB_SIFSLV_U2PHY_COM_BASE + 0x0014)
+#define PA5_RG_U2_HSTX_SRCAL_EN	BIT(15)
 #define PA5_RG_U2_HSTX_SRCTRL		GENMASK(14, 12)
 #define PA5_RG_U2_HSTX_SRCTRL_VAL(x)	((0x7 & (x)) << 12)
 #define PA5_RG_U2_HS_100U_U3_EN	BIT(11)
@@ -49,6 +52,8 @@
 #define PA6_RG_U2_ISO_EN		BIT(31)
 #define PA6_RG_U2_BC11_SW_EN		BIT(23)
 #define PA6_RG_U2_OTG_VBUSCMP_EN	BIT(20)
+#define PA6_RG_U2_SQTH		GENMASK(3, 0)
+#define PA6_RG_U2_SQTH_VAL(x)	(0xf & (x))
 
 #define U3P_U2PHYACR4		(SSUSB_SIFSLV_U2PHY_COM_BASE + 0x0020)
 #define P2C_RG_USB20_GPIO_CTL		BIT(9)
@@ -111,6 +116,24 @@
 #define XC3_RG_U3_XTAL_RX_PWD		BIT(9)
 #define XC3_RG_U3_FRC_XTAL_RX_PWD	BIT(8)
 
+#define U3P_U2FREQ_FMCR0	(SSUSB_SIFSLV_U2FREQ + 0x00)
+#define P2F_RG_MONCLK_SEL	GENMASK(27, 26)
+#define P2F_RG_MONCLK_SEL_VAL(x)	((0x3 & (x)) << 26)
+#define P2F_RG_FREQDET_EN	BIT(24)
+#define P2F_RG_CYCLECNT		GENMASK(23, 0)
+#define P2F_RG_CYCLECNT_VAL(x)	((P2F_RG_CYCLECNT) & (x))
+
+#define U3P_U2FREQ_VALUE	(SSUSB_SIFSLV_U2FREQ + 0x0c)
+
+#define U3P_U2FREQ_FMMONR1	(SSUSB_SIFSLV_U2FREQ + 0x10)
+#define P2F_USB_FM_VALID	BIT(0)
+#define P2F_RG_FRCK_EN		BIT(8)
+
+#define U3P_REF_CLK		26	/* MHZ */
+#define U3P_SLEW_RATE_COEF	28
+#define U3P_SR_COEF_DIVISOR	1000
+#define U3P_FM_DET_CYCLE_CNT	1024
+
 struct mt65xx_phy_instance {
 	struct phy *phy;
 	void __iomem *port_base;
@@ -126,6 +149,77 @@ struct mt65xx_u3phy {
 	int nphys;
 };
 
+static void hs_slew_rate_calibrate(struct mt65xx_u3phy *u3phy,
+	struct mt65xx_phy_instance *instance)
+{
+	void __iomem *sif_base = u3phy->sif_base;
+	int calibration_val;
+	int fm_out;
+	u32 tmp;
+
+	/* enable USB ring oscillator */
+	tmp = readl(instance->port_base + U3P_USBPHYACR5);
+	tmp |= PA5_RG_U2_HSTX_SRCAL_EN;
+	writel(tmp, instance->port_base + U3P_USBPHYACR5);
+	udelay(1);
+
+	/*enable free run clock */
+	tmp = readl(sif_base + U3P_U2FREQ_FMMONR1);
+	tmp |= P2F_RG_FRCK_EN;
+	writel(tmp, sif_base + U3P_U2FREQ_FMMONR1);
+
+	/* set cycle count as 1024, and select u2 channel */
+	tmp = readl(sif_base + U3P_U2FREQ_FMCR0);
+	tmp &= ~(P2F_RG_CYCLECNT | P2F_RG_MONCLK_SEL);
+	tmp |= P2F_RG_CYCLECNT_VAL(U3P_FM_DET_CYCLE_CNT);
+	tmp |= P2F_RG_MONCLK_SEL_VAL(instance->index);
+	writel(tmp, sif_base + U3P_U2FREQ_FMCR0);
+
+	/* enable frequency meter */
+	tmp = readl(sif_base + U3P_U2FREQ_FMCR0);
+	tmp |= P2F_RG_FREQDET_EN;
+	writel(tmp, sif_base + U3P_U2FREQ_FMCR0);
+
+	/* ignore return value */
+	readl_poll_timeout(sif_base + U3P_U2FREQ_FMMONR1, tmp,
+		  (tmp & P2F_USB_FM_VALID), 10, 200);
+
+	fm_out = readl(sif_base + U3P_U2FREQ_VALUE);
+
+	/* disable frequency meter */
+	tmp = readl(sif_base + U3P_U2FREQ_FMCR0);
+	tmp &= ~P2F_RG_FREQDET_EN;
+	writel(tmp, sif_base + U3P_U2FREQ_FMCR0);
+
+	/*disable free run clock */
+	tmp = readl(sif_base + U3P_U2FREQ_FMMONR1);
+	tmp &= ~P2F_RG_FRCK_EN;
+	writel(tmp, sif_base + U3P_U2FREQ_FMMONR1);
+
+	if (fm_out) {
+		/* ( 1024 / FM_OUT ) x reference clock frequency x 0.028 */
+		tmp = U3P_FM_DET_CYCLE_CNT * U3P_REF_CLK * U3P_SLEW_RATE_COEF;
+		tmp /= fm_out;
+		calibration_val = DIV_ROUND_CLOSEST(tmp, U3P_SR_COEF_DIVISOR);
+	} else {
+		/* if FM detection fail, set default value */
+		calibration_val = 4;
+	}
+	dev_dbg(u3phy->dev, "phy:%d, fm_out:%d, calib:%d\n",
+		instance->index, fm_out, calibration_val);
+
+	/* set HS slew rate */
+	tmp = readl(instance->port_base + U3P_USBPHYACR5);
+	tmp &= ~PA5_RG_U2_HSTX_SRCTRL;
+	tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(calibration_val);
+	writel(tmp, instance->port_base + U3P_USBPHYACR5);
+
+	/* disable USB ring oscillator */
+	tmp = readl(instance->port_base + U3P_USBPHYACR5);
+	tmp &= ~PA5_RG_U2_HSTX_SRCAL_EN;
+	writel(tmp, instance->port_base + U3P_USBPHYACR5);
+}
+
 static void phy_instance_init(struct mt65xx_u3phy *u3phy,
 	struct mt65xx_phy_instance *instance)
 {
@@ -165,9 +259,10 @@ static void phy_instance_init(struct mt65xx_u3phy *u3phy,
 		writel(tmp, port_base + U3P_U2PHYDTM0);
 	}
 
-	/* DP/DM BC1.1 path Disable */
 	tmp = readl(port_base + U3P_USBPHYACR6);
-	tmp &= ~PA6_RG_U2_BC11_SW_EN;
+	tmp &= ~PA6_RG_U2_BC11_SW_EN;	/* DP/DM BC1.1 path Disable */
+	tmp &= ~PA6_RG_U2_SQTH;
+	tmp |= PA6_RG_U2_SQTH_VAL(2);
 	writel(tmp, port_base + U3P_USBPHYACR6);
 
 	tmp = readl(port_base + U3P_U3PHYA_DA_REG0);
@@ -223,9 +318,9 @@ static void phy_instance_power_on(struct mt65xx_u3phy *u3phy,
 		tmp |= XC3_RG_U3_XTAL_RX_PWD | XC3_RG_U3_FRC_XTAL_RX_PWD;
 		writel(tmp, u3phy->sif_base + U3P_XTALCTL3);
 
-		/* [mt8173]disable Change 100uA current from SSUSB */
+		/* [mt8173]switch 100uA current to SSUSB */
 		tmp = readl(port_base + U3P_USBPHYACR5);
-		tmp &= ~PA5_RG_U2_HS_100U_U3_EN;
+		tmp |= PA5_RG_U2_HS_100U_U3_EN;
 		writel(tmp, port_base + U3P_USBPHYACR5);
 	}
 
@@ -270,7 +365,7 @@ static void phy_instance_power_off(struct mt65xx_u3phy *u3phy,
 	writel(tmp, port_base + U3P_USBPHYACR6);
 
 	if (!index) {
-		/* (also disable)Change 100uA current switch to USB2.0 */
+		/* switch 100uA current back to USB2.0 */
 		tmp = readl(port_base + U3P_USBPHYACR5);
 		tmp &= ~PA5_RG_U2_HS_100U_U3_EN;
 		writel(tmp, port_base + U3P_USBPHYACR5);
@@ -340,6 +435,7 @@ static int mt65xx_phy_power_on(struct phy *phy)
 	struct mt65xx_u3phy *u3phy = dev_get_drvdata(phy->dev.parent);
 
 	phy_instance_power_on(u3phy, instance);
+	hs_slew_rate_calibrate(u3phy, instance);
 	return 0;
 }
 
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 0fe80589ffbe..c134989052f5 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -29,6 +29,8 @@
 #include <linux/delay.h>
 #include <linux/phy/omap_control_phy.h>
 #include <linux/phy/phy.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
 #include <linux/of_platform.h>
 
 #define USB2PHY_DISCON_BYP_LATCH (1 << 31)
@@ -97,22 +99,38 @@ static int omap_usb_set_peripheral(struct usb_otg *otg,
 	return 0;
 }
 
+static int omap_usb_phy_power(struct omap_usb *phy, int on)
+{
+	u32 val;
+	int ret;
+
+	if (!phy->syscon_phy_power) {
+		omap_control_phy_power(phy->control_dev, on);
+		return 0;
+	}
+
+	if (on)
+		val = phy->power_on;
+	else
+		val = phy->power_off;
+
+	ret = regmap_update_bits(phy->syscon_phy_power, phy->power_reg,
+				 phy->mask, val);
+	return ret;
+}
+
 static int omap_usb_power_off(struct phy *x)
 {
 	struct omap_usb *phy = phy_get_drvdata(x);
 
-	omap_control_phy_power(phy->control_dev, 0);
-
-	return 0;
+	return omap_usb_phy_power(phy, false);
 }
 
 static int omap_usb_power_on(struct phy *x)
 {
 	struct omap_usb *phy = phy_get_drvdata(x);
 
-	omap_control_phy_power(phy->control_dev, 1);
-
-	return 0;
+	return omap_usb_phy_power(phy, true);
 }
 
 static int omap_usb_init(struct phy *x)
@@ -147,21 +165,38 @@ static const struct phy_ops ops = {
 static const struct usb_phy_data omap_usb2_data = {
 	.label = "omap_usb2",
 	.flags = OMAP_USB2_HAS_START_SRP | OMAP_USB2_HAS_SET_VBUS,
+	.mask = OMAP_DEV_PHY_PD,
+	.power_off = OMAP_DEV_PHY_PD,
 };
 
 static const struct usb_phy_data omap5_usb2_data = {
 	.label = "omap5_usb2",
 	.flags = 0,
+	.mask = OMAP_DEV_PHY_PD,
+	.power_off = OMAP_DEV_PHY_PD,
 };
 
 static const struct usb_phy_data dra7x_usb2_data = {
 	.label = "dra7x_usb2",
 	.flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
+	.mask = OMAP_DEV_PHY_PD,
+	.power_off = OMAP_DEV_PHY_PD,
+};
+
+static const struct usb_phy_data dra7x_usb2_phy2_data = {
+	.label = "dra7x_usb2_phy2",
+	.flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
+	.mask = OMAP_USB2_PHY_PD,
+	.power_off = OMAP_USB2_PHY_PD,
 };
 
 static const struct usb_phy_data am437x_usb2_data = {
 	.label = "am437x_usb2",
 	.flags =  0,
+	.mask = AM437X_USB2_PHY_PD | AM437X_USB2_OTG_PD |
+		AM437X_USB2_OTGVDET_EN | AM437X_USB2_OTGSESSEND_EN,
+	.power_on = AM437X_USB2_OTGVDET_EN | AM437X_USB2_OTGSESSEND_EN,
+	.power_off = AM437X_USB2_PHY_PD | AM437X_USB2_OTG_PD,
 };
 
 static const struct of_device_id omap_usb2_id_table[] = {
@@ -178,6 +213,10 @@ static const struct of_device_id omap_usb2_id_table[] = {
 		.data = &dra7x_usb2_data,
 	},
 	{
+		.compatible = "ti,dra7x-usb2-phy2",
+		.data = &dra7x_usb2_phy2_data,
+	},
+	{
 		.compatible = "ti,am437x-usb2",
 		.data = &am437x_usb2_data,
 	},
@@ -219,6 +258,9 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	phy->phy.label		= phy_data->label;
 	phy->phy.otg		= otg;
 	phy->phy.type		= USB_PHY_TYPE_USB2;
+	phy->mask		= phy_data->mask;
+	phy->power_on		= phy_data->power_on;
+	phy->power_off		= phy_data->power_off;
 
 	if (phy_data->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -228,21 +270,36 @@ static int omap_usb2_probe(struct platform_device *pdev)
 		phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT;
 	}
 
-	control_node = of_parse_phandle(node, "ctrl-module", 0);
-	if (!control_node) {
-		dev_err(&pdev->dev, "Failed to get control device phandle\n");
-		return -EINVAL;
-	}
+	phy->syscon_phy_power = syscon_regmap_lookup_by_phandle(node,
+							"syscon-phy-power");
+	if (IS_ERR(phy->syscon_phy_power)) {
+		dev_dbg(&pdev->dev,
+			"can't get syscon-phy-power, using control device\n");
+		phy->syscon_phy_power = NULL;
+
+		control_node = of_parse_phandle(node, "ctrl-module", 0);
+		if (!control_node) {
+			dev_err(&pdev->dev,
+				"Failed to get control device phandle\n");
+			return -EINVAL;
+		}
 
-	control_pdev = of_find_device_by_node(control_node);
-	if (!control_pdev) {
-		dev_err(&pdev->dev, "Failed to get control device\n");
-		return -EINVAL;
+		control_pdev = of_find_device_by_node(control_node);
+		if (!control_pdev) {
+			dev_err(&pdev->dev, "Failed to get control device\n");
+			return -EINVAL;
+		}
+		phy->control_dev = &control_pdev->dev;
+	} else {
+		if (of_property_read_u32_index(node,
+					       "syscon-phy-power", 1,
+					       &phy->power_reg)) {
+			dev_err(&pdev->dev,
+				"couldn't get power reg. offset\n");
+			return -EINVAL;
+		}
 	}
 
-	phy->control_dev = &control_pdev->dev;
-	omap_control_phy_power(phy->control_dev, 0);
-
 	otg->set_host		= omap_usb_set_host;
 	otg->set_peripheral	= omap_usb_set_peripheral;
 	if (phy_data->flags & OMAP_USB2_HAS_SET_VBUS)
@@ -261,6 +318,7 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	}
 
 	phy_set_drvdata(generic_phy, phy);
+	omap_usb_power_off(generic_phy);
 
 	phy_provider = devm_of_phy_provider_register(phy->dev,
 			of_phy_simple_xlate);
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
new file mode 100644
index 000000000000..ef332ef4abc7
--- /dev/null
+++ b/drivers/phy/phy-rcar-gen3-usb2.c
@@ -0,0 +1,378 @@
+/*
+ * Renesas R-Car Gen3 for USB2.0 PHY driver
+ *
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ *
+ * This is based on the phy-rcar-gen2 driver:
+ * Copyright (C) 2014 Renesas Solutions Corp.
+ * Copyright (C) 2014 Cogent Embedded, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+/******* USB2.0 Host registers (original offset is +0x200) *******/
+#define USB2_INT_ENABLE		0x000
+#define USB2_USBCTR		0x00c
+#define USB2_SPD_RSM_TIMSET	0x10c
+#define USB2_OC_TIMSET		0x110
+#define USB2_COMMCTRL		0x600
+#define USB2_OBINTSTA		0x604
+#define USB2_OBINTEN		0x608
+#define USB2_VBCTRL		0x60c
+#define USB2_LINECTRL1		0x610
+#define USB2_ADPCTRL		0x630
+
+/* INT_ENABLE */
+#define USB2_INT_ENABLE_UCOM_INTEN	BIT(3)
+#define USB2_INT_ENABLE_USBH_INTB_EN	BIT(2)
+#define USB2_INT_ENABLE_USBH_INTA_EN	BIT(1)
+#define USB2_INT_ENABLE_INIT		(USB2_INT_ENABLE_UCOM_INTEN | \
+					 USB2_INT_ENABLE_USBH_INTB_EN | \
+					 USB2_INT_ENABLE_USBH_INTA_EN)
+
+/* USBCTR */
+#define USB2_USBCTR_DIRPD	BIT(2)
+#define USB2_USBCTR_PLL_RST	BIT(1)
+
+/* SPD_RSM_TIMSET */
+#define USB2_SPD_RSM_TIMSET_INIT	0x014e029b
+
+/* OC_TIMSET */
+#define USB2_OC_TIMSET_INIT		0x000209ab
+
+/* COMMCTRL */
+#define USB2_COMMCTRL_OTG_PERI		BIT(31)	/* 1 = Peripheral mode */
+
+/* OBINTSTA and OBINTEN */
+#define USB2_OBINT_SESSVLDCHG		BIT(12)
+#define USB2_OBINT_IDDIGCHG		BIT(11)
+#define USB2_OBINT_BITS			(USB2_OBINT_SESSVLDCHG | \
+					 USB2_OBINT_IDDIGCHG)
+
+/* VBCTRL */
+#define USB2_VBCTRL_DRVVBUSSEL		BIT(8)
+
+/* LINECTRL1 */
+#define USB2_LINECTRL1_DPRPD_EN		BIT(19)
+#define USB2_LINECTRL1_DP_RPD		BIT(18)
+#define USB2_LINECTRL1_DMRPD_EN		BIT(17)
+#define USB2_LINECTRL1_DM_RPD		BIT(16)
+
+/* ADPCTRL */
+#define USB2_ADPCTRL_OTGSESSVLD		BIT(20)
+#define USB2_ADPCTRL_IDDIG		BIT(19)
+#define USB2_ADPCTRL_IDPULLUP		BIT(5)	/* 1 = ID sampling is enabled */
+#define USB2_ADPCTRL_DRVVBUS		BIT(4)
+
+/******* HSUSB registers (original offset is +0x100) *******/
+#define HSUSB_LPSTS			0x02
+#define HSUSB_UGCTRL2			0x84
+
+/* Low Power Status register (LPSTS) */
+#define HSUSB_LPSTS_SUSPM		0x4000
+
+/* USB General control register 2 (UGCTRL2) */
+#define HSUSB_UGCTRL2_MASK		0x00000031 /* bit[31:6] should be 0 */
+#define HSUSB_UGCTRL2_USB0SEL		0x00000030
+#define HSUSB_UGCTRL2_USB0SEL_HOST	0x00000010
+#define HSUSB_UGCTRL2_USB0SEL_HS_USB	0x00000020
+#define HSUSB_UGCTRL2_USB0SEL_OTG	0x00000030
+
+struct rcar_gen3_data {
+	void __iomem *base;
+	struct clk *clk;
+};
+
+struct rcar_gen3_chan {
+	struct rcar_gen3_data usb2;
+	struct rcar_gen3_data hsusb;
+	struct phy *phy;
+};
+
+static void rcar_gen3_set_host_mode(struct rcar_gen3_chan *ch, int host)
+{
+	void __iomem *usb2_base = ch->usb2.base;
+	u32 val = readl(usb2_base + USB2_COMMCTRL);
+
+	dev_vdbg(&ch->phy->dev, "%s: %08x, %d\n", __func__, val, host);
+	if (host)
+		val &= ~USB2_COMMCTRL_OTG_PERI;
+	else
+		val |= USB2_COMMCTRL_OTG_PERI;
+	writel(val, usb2_base + USB2_COMMCTRL);
+}
+
+static void rcar_gen3_set_linectrl(struct rcar_gen3_chan *ch, int dp, int dm)
+{
+	void __iomem *usb2_base = ch->usb2.base;
+	u32 val = readl(usb2_base + USB2_LINECTRL1);
+
+	dev_vdbg(&ch->phy->dev, "%s: %08x, %d, %d\n", __func__, val, dp, dm);
+	val &= ~(USB2_LINECTRL1_DP_RPD | USB2_LINECTRL1_DM_RPD);
+	if (dp)
+		val |= USB2_LINECTRL1_DP_RPD;
+	if (dm)
+		val |= USB2_LINECTRL1_DM_RPD;
+	writel(val, usb2_base + USB2_LINECTRL1);
+}
+
+static void rcar_gen3_enable_vbus_ctrl(struct rcar_gen3_chan *ch, int vbus)
+{
+	void __iomem *usb2_base = ch->usb2.base;
+	u32 val = readl(usb2_base + USB2_ADPCTRL);
+
+	dev_vdbg(&ch->phy->dev, "%s: %08x, %d\n", __func__, val, vbus);
+	if (vbus)
+		val |= USB2_ADPCTRL_DRVVBUS;
+	else
+		val &= ~USB2_ADPCTRL_DRVVBUS;
+	writel(val, usb2_base + USB2_ADPCTRL);
+}
+
+static void rcar_gen3_init_for_host(struct rcar_gen3_chan *ch)
+{
+	rcar_gen3_set_linectrl(ch, 1, 1);
+	rcar_gen3_set_host_mode(ch, 1);
+	rcar_gen3_enable_vbus_ctrl(ch, 1);
+}
+
+static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch)
+{
+	rcar_gen3_set_linectrl(ch, 0, 1);
+	rcar_gen3_set_host_mode(ch, 0);
+	rcar_gen3_enable_vbus_ctrl(ch, 0);
+}
+
+static bool rcar_gen3_check_vbus(struct rcar_gen3_chan *ch)
+{
+	return !!(readl(ch->usb2.base + USB2_ADPCTRL) &
+		  USB2_ADPCTRL_OTGSESSVLD);
+}
+
+static bool rcar_gen3_check_id(struct rcar_gen3_chan *ch)
+{
+	return !!(readl(ch->usb2.base + USB2_ADPCTRL) & USB2_ADPCTRL_IDDIG);
+}
+
+static void rcar_gen3_device_recognition(struct rcar_gen3_chan *ch)
+{
+	bool is_host = true;
+
+	/* B-device? */
+	if (rcar_gen3_check_id(ch) && rcar_gen3_check_vbus(ch))
+		is_host = false;
+
+	if (is_host)
+		rcar_gen3_init_for_host(ch);
+	else
+		rcar_gen3_init_for_peri(ch);
+}
+
+static void rcar_gen3_init_otg(struct rcar_gen3_chan *ch)
+{
+	void __iomem *usb2_base = ch->usb2.base;
+	u32 val;
+
+	val = readl(usb2_base + USB2_VBCTRL);
+	writel(val | USB2_VBCTRL_DRVVBUSSEL, usb2_base + USB2_VBCTRL);
+	writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA);
+	val = readl(usb2_base + USB2_OBINTEN);
+	writel(val | USB2_OBINT_BITS, usb2_base + USB2_OBINTEN);
+	val = readl(usb2_base + USB2_ADPCTRL);
+	writel(val | USB2_ADPCTRL_IDPULLUP, usb2_base + USB2_ADPCTRL);
+	val = readl(usb2_base + USB2_LINECTRL1);
+	rcar_gen3_set_linectrl(ch, 0, 0);
+	writel(val | USB2_LINECTRL1_DPRPD_EN | USB2_LINECTRL1_DMRPD_EN,
+	       usb2_base + USB2_LINECTRL1);
+
+	rcar_gen3_device_recognition(ch);
+}
+
+static int rcar_gen3_phy_usb2_init(struct phy *p)
+{
+	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
+	void __iomem *usb2_base = channel->usb2.base;
+	void __iomem *hsusb_base = channel->hsusb.base;
+	u32 val;
+
+	/* Initialize USB2 part */
+	writel(USB2_INT_ENABLE_INIT, usb2_base + USB2_INT_ENABLE);
+	writel(USB2_SPD_RSM_TIMSET_INIT, usb2_base + USB2_SPD_RSM_TIMSET);
+	writel(USB2_OC_TIMSET_INIT, usb2_base + USB2_OC_TIMSET);
+
+	/* Initialize HSUSB part */
+	if (hsusb_base) {
+		val = readl(hsusb_base + HSUSB_UGCTRL2);
+		val = (val & ~HSUSB_UGCTRL2_USB0SEL) |
+		      HSUSB_UGCTRL2_USB0SEL_OTG;
+		writel(val & HSUSB_UGCTRL2_MASK, hsusb_base + HSUSB_UGCTRL2);
+
+		/* Initialize otg part */
+		rcar_gen3_init_otg(channel);
+	}
+
+	return 0;
+}
+
+static int rcar_gen3_phy_usb2_exit(struct phy *p)
+{
+	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
+
+	writel(0, channel->usb2.base + USB2_INT_ENABLE);
+
+	return 0;
+}
+
+static int rcar_gen3_phy_usb2_power_on(struct phy *p)
+{
+	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
+	void __iomem *usb2_base = channel->usb2.base;
+	void __iomem *hsusb_base = channel->hsusb.base;
+	u32 val;
+
+	val = readl(usb2_base + USB2_USBCTR);
+	val |= USB2_USBCTR_PLL_RST;
+	writel(val, usb2_base + USB2_USBCTR);
+	val &= ~USB2_USBCTR_PLL_RST;
+	writel(val, usb2_base + USB2_USBCTR);
+
+	/*
+	 * TODO: To reduce power consuming, this driver should set the SUSPM
+	 *	after the PHY detects ID pin as peripheral.
+	 */
+	if (hsusb_base) {
+		/* Power on HSUSB PHY */
+		val = readw(hsusb_base + HSUSB_LPSTS);
+		val |= HSUSB_LPSTS_SUSPM;
+		writew(val, hsusb_base + HSUSB_LPSTS);
+	}
+
+	return 0;
+}
+
+static int rcar_gen3_phy_usb2_power_off(struct phy *p)
+{
+	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
+	void __iomem *hsusb_base = channel->hsusb.base;
+	u32 val;
+
+	if (hsusb_base) {
+		/* Power off HSUSB PHY */
+		val = readw(hsusb_base + HSUSB_LPSTS);
+		val &= ~HSUSB_LPSTS_SUSPM;
+		writew(val, hsusb_base + HSUSB_LPSTS);
+	}
+
+	return 0;
+}
+
+static struct phy_ops rcar_gen3_phy_usb2_ops = {
+	.init		= rcar_gen3_phy_usb2_init,
+	.exit		= rcar_gen3_phy_usb2_exit,
+	.power_on	= rcar_gen3_phy_usb2_power_on,
+	.power_off	= rcar_gen3_phy_usb2_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch)
+{
+	struct rcar_gen3_chan *ch = _ch;
+	void __iomem *usb2_base = ch->usb2.base;
+	u32 status = readl(usb2_base + USB2_OBINTSTA);
+	irqreturn_t ret = IRQ_NONE;
+
+	if (status & USB2_OBINT_BITS) {
+		dev_vdbg(&ch->phy->dev, "%s: %08x\n", __func__, status);
+		writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA);
+		rcar_gen3_device_recognition(ch);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = {
+	{ .compatible = "renesas,usb2-phy-r8a7795" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, rcar_gen3_phy_usb2_match_table);
+
+static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rcar_gen3_chan *channel;
+	struct phy_provider *provider;
+	struct resource *res;
+
+	if (!dev->of_node) {
+		dev_err(dev, "This driver needs device tree\n");
+		return -EINVAL;
+	}
+
+	channel = devm_kzalloc(dev, sizeof(*channel), GFP_KERNEL);
+	if (!channel)
+		return -ENOMEM;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usb2_host");
+	channel->usb2.base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(channel->usb2.base))
+		return PTR_ERR(channel->usb2.base);
+
+	/* "hsusb" memory resource is optional */
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hsusb");
+
+	/* To avoid error message by devm_ioremap_resource() */
+	if (res) {
+		int irq;
+
+		channel->hsusb.base = devm_ioremap_resource(dev, res);
+		if (IS_ERR(channel->hsusb.base))
+			channel->hsusb.base = NULL;
+		/* call request_irq for OTG */
+		irq = platform_get_irq(pdev, 0);
+		if (irq >= 0)
+			irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
+					       IRQF_SHARED, dev_name(dev),
+					       channel);
+		if (irq < 0)
+			dev_err(dev, "No irq handler (%d)\n", irq);
+	}
+
+	/* devm_phy_create() will call pm_runtime_enable(dev); */
+	channel->phy = devm_phy_create(dev, NULL, &rcar_gen3_phy_usb2_ops);
+	if (IS_ERR(channel->phy)) {
+		dev_err(dev, "Failed to create USB2 PHY\n");
+		return PTR_ERR(channel->phy);
+	}
+
+	phy_set_drvdata(channel->phy, channel);
+
+	provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(provider))
+		dev_err(dev, "Failed to register PHY provider\n");
+
+	return PTR_ERR_OR_ZERO(provider);
+}
+
+static struct platform_driver rcar_gen3_phy_usb2_driver = {
+	.driver = {
+		.name		= "phy_rcar_gen3_usb2",
+		.of_match_table	= rcar_gen3_phy_usb2_match_table,
+	},
+	.probe	= rcar_gen3_phy_usb2_probe,
+};
+module_platform_driver(rcar_gen3_phy_usb2_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Renesas R-Car Gen3 USB 2.0 PHY");
+MODULE_AUTHOR("Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>");
diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c
index 62c43c435194..33a80eba1cb4 100644
--- a/drivers/phy/phy-rockchip-usb.c
+++ b/drivers/phy/phy-rockchip-usb.c
@@ -15,12 +15,14 @@
  */
 
 #include <linux/clk.h>
+#include <linux/clk-provider.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_platform.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
@@ -36,120 +38,281 @@
 #define SIDDQ_ON		BIT(13)
 #define SIDDQ_OFF		(0 << 13)
 
+struct rockchip_usb_phys {
+	int reg;
+	const char *pll_name;
+};
+
+struct rockchip_usb_phy_pdata {
+	struct rockchip_usb_phys *phys;
+};
+
+struct rockchip_usb_phy_base {
+	struct device *dev;
+	struct regmap *reg_base;
+	const struct rockchip_usb_phy_pdata *pdata;
+};
+
 struct rockchip_usb_phy {
+	struct rockchip_usb_phy_base *base;
+	struct device_node *np;
 	unsigned int	reg_offset;
-	struct regmap	*reg_base;
 	struct clk	*clk;
+	struct clk      *clk480m;
+	struct clk_hw	clk480m_hw;
 	struct phy	*phy;
 };
 
 static int rockchip_usb_phy_power(struct rockchip_usb_phy *phy,
 					   bool siddq)
 {
-	return regmap_write(phy->reg_base, phy->reg_offset,
+	return regmap_write(phy->base->reg_base, phy->reg_offset,
 			    SIDDQ_WRITE_ENA | (siddq ? SIDDQ_ON : SIDDQ_OFF));
 }
 
-static int rockchip_usb_phy_power_off(struct phy *_phy)
+static unsigned long rockchip_usb_phy480m_recalc_rate(struct clk_hw *hw,
+						unsigned long parent_rate)
 {
-	struct rockchip_usb_phy *phy = phy_get_drvdata(_phy);
-	int ret = 0;
+	return 480000000;
+}
+
+static void rockchip_usb_phy480m_disable(struct clk_hw *hw)
+{
+	struct rockchip_usb_phy *phy = container_of(hw,
+						    struct rockchip_usb_phy,
+						    clk480m_hw);
 
 	/* Power down usb phy analog blocks by set siddq 1 */
-	ret = rockchip_usb_phy_power(phy, 1);
-	if (ret)
-		return ret;
+	rockchip_usb_phy_power(phy, 1);
+}
 
-	clk_disable_unprepare(phy->clk);
+static int rockchip_usb_phy480m_enable(struct clk_hw *hw)
+{
+	struct rockchip_usb_phy *phy = container_of(hw,
+						    struct rockchip_usb_phy,
+						    clk480m_hw);
 
-	return 0;
+	/* Power up usb phy analog blocks by set siddq 0 */
+	return rockchip_usb_phy_power(phy, 0);
 }
 
-static int rockchip_usb_phy_power_on(struct phy *_phy)
+static int rockchip_usb_phy480m_is_enabled(struct clk_hw *hw)
 {
-	struct rockchip_usb_phy *phy = phy_get_drvdata(_phy);
-	int ret = 0;
+	struct rockchip_usb_phy *phy = container_of(hw,
+						    struct rockchip_usb_phy,
+						    clk480m_hw);
+	int ret;
+	u32 val;
 
-	ret = clk_prepare_enable(phy->clk);
-	if (ret)
+	ret = regmap_read(phy->base->reg_base, phy->reg_offset, &val);
+	if (ret < 0)
 		return ret;
 
-	/* Power up usb phy analog blocks by set siddq 0 */
-	ret = rockchip_usb_phy_power(phy, 0);
-	if (ret) {
-		clk_disable_unprepare(phy->clk);
-		return ret;
-	}
+	return (val & SIDDQ_ON) ? 0 : 1;
+}
+
+static const struct clk_ops rockchip_usb_phy480m_ops = {
+	.enable = rockchip_usb_phy480m_enable,
+	.disable = rockchip_usb_phy480m_disable,
+	.is_enabled = rockchip_usb_phy480m_is_enabled,
+	.recalc_rate = rockchip_usb_phy480m_recalc_rate,
+};
+
+static int rockchip_usb_phy_power_off(struct phy *_phy)
+{
+	struct rockchip_usb_phy *phy = phy_get_drvdata(_phy);
+
+	clk_disable_unprepare(phy->clk480m);
 
 	return 0;
 }
 
+static int rockchip_usb_phy_power_on(struct phy *_phy)
+{
+	struct rockchip_usb_phy *phy = phy_get_drvdata(_phy);
+
+	return clk_prepare_enable(phy->clk480m);
+}
+
 static const struct phy_ops ops = {
 	.power_on	= rockchip_usb_phy_power_on,
 	.power_off	= rockchip_usb_phy_power_off,
 	.owner		= THIS_MODULE,
 };
 
-static int rockchip_usb_phy_probe(struct platform_device *pdev)
+static void rockchip_usb_phy_action(void *data)
+{
+	struct rockchip_usb_phy *rk_phy = data;
+
+	of_clk_del_provider(rk_phy->np);
+	clk_unregister(rk_phy->clk480m);
+
+	if (rk_phy->clk)
+		clk_put(rk_phy->clk);
+}
+
+static int rockchip_usb_phy_init(struct rockchip_usb_phy_base *base,
+				 struct device_node *child)
 {
-	struct device *dev = &pdev->dev;
 	struct rockchip_usb_phy *rk_phy;
-	struct phy_provider *phy_provider;
-	struct device_node *child;
-	struct regmap *grf;
 	unsigned int reg_offset;
-	int err;
+	const char *clk_name;
+	struct clk_init_data init;
+	int err, i;
 
-	grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
-	if (IS_ERR(grf)) {
-		dev_err(&pdev->dev, "Missing rockchip,grf property\n");
-		return PTR_ERR(grf);
+	rk_phy = devm_kzalloc(base->dev, sizeof(*rk_phy), GFP_KERNEL);
+	if (!rk_phy)
+		return -ENOMEM;
+
+	rk_phy->base = base;
+	rk_phy->np = child;
+
+	if (of_property_read_u32(child, "reg", &reg_offset)) {
+		dev_err(base->dev, "missing reg property in node %s\n",
+			child->name);
+		return -EINVAL;
 	}
 
-	for_each_available_child_of_node(dev->of_node, child) {
-		rk_phy = devm_kzalloc(dev, sizeof(*rk_phy), GFP_KERNEL);
-		if (!rk_phy) {
-			err = -ENOMEM;
-			goto put_child;
-		}
+	rk_phy->reg_offset = reg_offset;
+
+	rk_phy->clk = of_clk_get_by_name(child, "phyclk");
+	if (IS_ERR(rk_phy->clk))
+		rk_phy->clk = NULL;
 
-		if (of_property_read_u32(child, "reg", &reg_offset)) {
-			dev_err(dev, "missing reg property in node %s\n",
-				child->name);
-			err = -EINVAL;
-			goto put_child;
+	i = 0;
+	init.name = NULL;
+	while (base->pdata->phys[i].reg) {
+		if (base->pdata->phys[i].reg == reg_offset) {
+			init.name = base->pdata->phys[i].pll_name;
+			break;
 		}
+		i++;
+	}
 
-		rk_phy->reg_offset = reg_offset;
-		rk_phy->reg_base = grf;
+	if (!init.name) {
+		dev_err(base->dev, "phy data not found\n");
+		return -EINVAL;
+	}
 
-		rk_phy->clk = of_clk_get_by_name(child, "phyclk");
-		if (IS_ERR(rk_phy->clk))
-			rk_phy->clk = NULL;
+	if (rk_phy->clk) {
+		clk_name = __clk_get_name(rk_phy->clk);
+		init.flags = 0;
+		init.parent_names = &clk_name;
+		init.num_parents = 1;
+	} else {
+		init.flags = CLK_IS_ROOT;
+		init.parent_names = NULL;
+		init.num_parents = 0;
+	}
 
-		rk_phy->phy = devm_phy_create(dev, child, &ops);
-		if (IS_ERR(rk_phy->phy)) {
-			dev_err(dev, "failed to create PHY\n");
-			err = PTR_ERR(rk_phy->phy);
-			goto put_child;
-		}
-		phy_set_drvdata(rk_phy->phy, rk_phy);
+	init.ops = &rockchip_usb_phy480m_ops;
+	rk_phy->clk480m_hw.init = &init;
 
-		/* only power up usb phy when it use, so disable it when init*/
-		err = rockchip_usb_phy_power(rk_phy, 1);
-		if (err)
-			goto put_child;
+	rk_phy->clk480m = clk_register(base->dev, &rk_phy->clk480m_hw);
+	if (IS_ERR(rk_phy->clk480m)) {
+		err = PTR_ERR(rk_phy->clk480m);
+		goto err_clk;
+	}
+
+	err = of_clk_add_provider(child, of_clk_src_simple_get,
+				  rk_phy->clk480m);
+	if (err < 0)
+		goto err_clk_prov;
+
+	err = devm_add_action(base->dev, rockchip_usb_phy_action, rk_phy);
+	if (err)
+		goto err_devm_action;
+
+	rk_phy->phy = devm_phy_create(base->dev, child, &ops);
+	if (IS_ERR(rk_phy->phy)) {
+		dev_err(base->dev, "failed to create PHY\n");
+		return PTR_ERR(rk_phy->phy);
+	}
+	phy_set_drvdata(rk_phy->phy, rk_phy);
+
+	/* only power up usb phy when it use, so disable it when init*/
+	return rockchip_usb_phy_power(rk_phy, 1);
+
+err_devm_action:
+	of_clk_del_provider(child);
+err_clk_prov:
+	clk_unregister(rk_phy->clk480m);
+err_clk:
+	if (rk_phy->clk)
+		clk_put(rk_phy->clk);
+	return err;
+}
+
+static const struct rockchip_usb_phy_pdata rk3066a_pdata = {
+	.phys = (struct rockchip_usb_phys[]){
+		{ .reg = 0x17c, .pll_name = "sclk_otgphy0_480m" },
+		{ .reg = 0x188, .pll_name = "sclk_otgphy1_480m" },
+		{ /* sentinel */ }
+	},
+};
+
+static const struct rockchip_usb_phy_pdata rk3188_pdata = {
+	.phys = (struct rockchip_usb_phys[]){
+		{ .reg = 0x10c, .pll_name = "sclk_otgphy0_480m" },
+		{ .reg = 0x11c, .pll_name = "sclk_otgphy1_480m" },
+		{ /* sentinel */ }
+	},
+};
+
+static const struct rockchip_usb_phy_pdata rk3288_pdata = {
+	.phys = (struct rockchip_usb_phys[]){
+		{ .reg = 0x320, .pll_name = "sclk_otgphy0_480m" },
+		{ .reg = 0x334, .pll_name = "sclk_otgphy1_480m" },
+		{ .reg = 0x348, .pll_name = "sclk_otgphy2_480m" },
+		{ /* sentinel */ }
+	},
+};
+
+static int rockchip_usb_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rockchip_usb_phy_base *phy_base;
+	struct phy_provider *phy_provider;
+	const struct of_device_id *match;
+	struct device_node *child;
+	int err;
+
+	phy_base = devm_kzalloc(dev, sizeof(*phy_base), GFP_KERNEL);
+	if (!phy_base)
+		return -ENOMEM;
+
+	match = of_match_device(dev->driver->of_match_table, dev);
+	if (!match || !match->data) {
+		dev_err(dev, "missing phy data\n");
+		return -EINVAL;
+	}
+
+	phy_base->pdata = match->data;
+
+	phy_base->dev = dev;
+	phy_base->reg_base = syscon_regmap_lookup_by_phandle(dev->of_node,
+							     "rockchip,grf");
+	if (IS_ERR(phy_base->reg_base)) {
+		dev_err(&pdev->dev, "Missing rockchip,grf property\n");
+		return PTR_ERR(phy_base->reg_base);
+	}
+
+	for_each_available_child_of_node(dev->of_node, child) {
+		err = rockchip_usb_phy_init(phy_base, child);
+		if (err) {
+			of_node_put(child);
+			return err;
+		}
 	}
 
 	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
 	return PTR_ERR_OR_ZERO(phy_provider);
-put_child:
-	of_node_put(child);
-	return err;
 }
 
 static const struct of_device_id rockchip_usb_phy_dt_ids[] = {
-	{ .compatible = "rockchip,rk3288-usb-phy" },
+	{ .compatible = "rockchip,rk3066a-usb-phy", .data = &rk3066a_pdata },
+	{ .compatible = "rockchip,rk3188-usb-phy", .data = &rk3188_pdata },
+	{ .compatible = "rockchip,rk3288-usb-phy", .data = &rk3288_pdata },
 	{}
 };
 
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index b12964b70625..bae54f7a1f48 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -32,6 +32,7 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <linux/phy/phy.h>
 #include <linux/phy/phy-sun4i-usb.h>
@@ -46,6 +47,9 @@
 #define REG_PHYBIST			0x08
 #define REG_PHYTUNE			0x0c
 #define REG_PHYCTL_A33			0x10
+#define REG_PHY_UNK_H3			0x20
+
+#define REG_PMU_UNK_H3			0x10
 
 #define PHYCTL_DATA			BIT(7)
 
@@ -79,7 +83,7 @@
 #define PHY_DISCON_TH_SEL		0x2a
 #define PHY_SQUELCH_DETECT		0x3c
 
-#define MAX_PHYS			3
+#define MAX_PHYS			4
 
 /*
  * Note do not raise the debounce time, we must report Vusb high within 100ms
@@ -88,12 +92,24 @@
 #define DEBOUNCE_TIME			msecs_to_jiffies(50)
 #define POLL_TIME			msecs_to_jiffies(250)
 
+enum sun4i_usb_phy_type {
+	sun4i_a10_phy,
+	sun8i_a33_phy,
+	sun8i_h3_phy,
+};
+
+struct sun4i_usb_phy_cfg {
+	int num_phys;
+	enum sun4i_usb_phy_type type;
+	u32 disc_thresh;
+	u8 phyctl_offset;
+	bool dedicated_clocks;
+};
+
 struct sun4i_usb_phy_data {
 	void __iomem *base;
+	const struct sun4i_usb_phy_cfg *cfg;
 	struct mutex mutex;
-	int num_phys;
-	u32 disc_thresh;
-	bool has_a33_phyctl;
 	struct sun4i_usb_phy {
 		struct phy *phy;
 		void __iomem *pmu;
@@ -159,17 +175,14 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
 {
 	struct sun4i_usb_phy_data *phy_data = to_sun4i_usb_phy_data(phy);
 	u32 temp, usbc_bit = BIT(phy->index * 2);
-	void *phyctl;
+	void *phyctl = phy_data->base + phy_data->cfg->phyctl_offset;
 	int i;
 
 	mutex_lock(&phy_data->mutex);
 
-	if (phy_data->has_a33_phyctl) {
-		phyctl = phy_data->base + REG_PHYCTL_A33;
+	if (phy_data->cfg->type == sun8i_a33_phy) {
 		/* A33 needs us to set phyctl to 0 explicitly */
 		writel(0, phyctl);
-	} else {
-		phyctl = phy_data->base + REG_PHYCTL_A10;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -230,6 +243,7 @@ static int sun4i_usb_phy_init(struct phy *_phy)
 	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
 	struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
 	int ret;
+	u32 val;
 
 	ret = clk_prepare_enable(phy->clk);
 	if (ret)
@@ -241,15 +255,26 @@ static int sun4i_usb_phy_init(struct phy *_phy)
 		return ret;
 	}
 
-	/* Enable USB 45 Ohm resistor calibration */
-	if (phy->index == 0)
-		sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1);
+	if (data->cfg->type == sun8i_h3_phy) {
+		if (phy->index == 0) {
+			val = readl(data->base + REG_PHY_UNK_H3);
+			writel(val & ~1, data->base + REG_PHY_UNK_H3);
+		}
 
-	/* Adjust PHY's magnitude and rate */
-	sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, 0x14, 5);
+		val = readl(phy->pmu + REG_PMU_UNK_H3);
+		writel(val & ~2, phy->pmu + REG_PMU_UNK_H3);
+	} else {
+		/* Enable USB 45 Ohm resistor calibration */
+		if (phy->index == 0)
+			sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1);
 
-	/* Disconnect threshold adjustment */
-	sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL, data->disc_thresh, 2);
+		/* Adjust PHY's magnitude and rate */
+		sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, 0x14, 5);
+
+		/* Disconnect threshold adjustment */
+		sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL,
+				    data->cfg->disc_thresh, 2);
+	}
 
 	sun4i_usb_phy_passby(phy, 1);
 
@@ -476,7 +501,7 @@ static struct phy *sun4i_usb_phy_xlate(struct device *dev,
 {
 	struct sun4i_usb_phy_data *data = dev_get_drvdata(dev);
 
-	if (args->args[0] >= data->num_phys)
+	if (args->args[0] >= data->cfg->num_phys)
 		return ERR_PTR(-ENODEV);
 
 	return data->phys[args->args[0]].phy;
@@ -511,7 +536,6 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct phy_provider *phy_provider;
-	bool dedicated_clocks;
 	struct resource *res;
 	int i, ret;
 
@@ -522,29 +546,9 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	mutex_init(&data->mutex);
 	INIT_DELAYED_WORK(&data->detect, sun4i_usb_phy0_id_vbus_det_scan);
 	dev_set_drvdata(dev, data);
-
-	if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a23-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		data->num_phys = 2;
-	else
-		data->num_phys = 3;
-
-	if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun7i-a20-usb-phy"))
-		data->disc_thresh = 2;
-	else
-		data->disc_thresh = 3;
-
-	if (of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a23-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		dedicated_clocks = true;
-	else
-		dedicated_clocks = false;
-
-	if (of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		data->has_a33_phyctl = true;
+	data->cfg = of_device_get_match_data(dev);
+	if (!data->cfg)
+		return -EINVAL;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl");
 	data->base = devm_ioremap_resource(dev, res);
@@ -590,7 +594,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 		}
 	}
 
-	for (i = 0; i < data->num_phys; i++) {
+	for (i = 0; i < data->cfg->num_phys; i++) {
 		struct sun4i_usb_phy *phy = data->phys + i;
 		char name[16];
 
@@ -602,7 +606,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 			phy->vbus = NULL;
 		}
 
-		if (dedicated_clocks)
+		if (data->cfg->dedicated_clocks)
 			snprintf(name, sizeof(name), "usb%d_phy", i);
 		else
 			strlcpy(name, "usb_phy", sizeof(name));
@@ -689,13 +693,69 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = {
+	.num_phys = 2,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 2,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 2,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = {
+	.num_phys = 2,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = {
+	.num_phys = 2,
+	.type = sun8i_a33_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A33,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = {
+	.num_phys = 4,
+	.type = sun8i_h3_phy,
+	.disc_thresh = 3,
+	.dedicated_clocks = true,
+};
+
 static const struct of_device_id sun4i_usb_phy_of_match[] = {
-	{ .compatible = "allwinner,sun4i-a10-usb-phy" },
-	{ .compatible = "allwinner,sun5i-a13-usb-phy" },
-	{ .compatible = "allwinner,sun6i-a31-usb-phy" },
-	{ .compatible = "allwinner,sun7i-a20-usb-phy" },
-	{ .compatible = "allwinner,sun8i-a23-usb-phy" },
-	{ .compatible = "allwinner,sun8i-a33-usb-phy" },
+	{ .compatible = "allwinner,sun4i-a10-usb-phy", .data = &sun4i_a10_cfg },
+	{ .compatible = "allwinner,sun5i-a13-usb-phy", .data = &sun5i_a13_cfg },
+	{ .compatible = "allwinner,sun6i-a31-usb-phy", .data = &sun6i_a31_cfg },
+	{ .compatible = "allwinner,sun7i-a20-usb-phy", .data = &sun7i_a20_cfg },
+	{ .compatible = "allwinner,sun8i-a23-usb-phy", .data = &sun8i_a23_cfg },
+	{ .compatible = "allwinner,sun8i-a33-usb-phy", .data = &sun8i_a33_cfg },
+	{ .compatible = "allwinner,sun8i-h3-usb-phy", .data = &sun8i_h3_cfg },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);
diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c
index 93bc1120af12..0a477d24cf76 100644
--- a/drivers/phy/phy-ti-pipe3.c
+++ b/drivers/phy/phy-ti-pipe3.c
@@ -56,6 +56,18 @@
 
 #define SATA_PLL_SOFT_RESET	BIT(18)
 
+#define PIPE3_PHY_PWRCTL_CLK_CMD_MASK	0x003FC000
+#define PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT	14
+
+#define PIPE3_PHY_PWRCTL_CLK_FREQ_MASK	0xFFC00000
+#define PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT	22
+
+#define PIPE3_PHY_TX_RX_POWERON		0x3
+#define PIPE3_PHY_TX_RX_POWEROFF	0x0
+
+#define PCIE_PCS_MASK			0xFF0000
+#define PCIE_PCS_DELAY_COUNT_SHIFT	0x10
+
 /*
  * This is an Empirical value that works, need to confirm the actual
  * value required for the PIPE3PHY_PLL_CONFIGURATION2.PLL_IDLE status
@@ -86,8 +98,12 @@ struct ti_pipe3 {
 	struct clk		*refclk;
 	struct clk		*div_clk;
 	struct pipe3_dpll_map	*dpll_map;
+	struct regmap		*phy_power_syscon; /* ctrl. reg. acces */
+	struct regmap		*pcs_syscon; /* ctrl. reg. acces */
 	struct regmap		*dpll_reset_syscon; /* ctrl. reg. acces */
 	unsigned int		dpll_reset_reg; /* reg. index within syscon */
+	unsigned int		power_reg; /* power reg. index within syscon */
+	unsigned int		pcie_pcs_reg; /* pcs reg. index in syscon */
 	bool			sata_refclk_enabled;
 };
 
@@ -144,20 +160,49 @@ static void ti_pipe3_disable_clocks(struct ti_pipe3 *phy);
 
 static int ti_pipe3_power_off(struct phy *x)
 {
+	u32 val;
+	int ret;
 	struct ti_pipe3 *phy = phy_get_drvdata(x);
 
-	omap_control_phy_power(phy->control_dev, 0);
+	if (!phy->phy_power_syscon) {
+		omap_control_phy_power(phy->control_dev, 0);
+		return 0;
+	}
 
-	return 0;
+	val = PIPE3_PHY_TX_RX_POWEROFF << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
+
+	ret = regmap_update_bits(phy->phy_power_syscon, phy->power_reg,
+				 PIPE3_PHY_PWRCTL_CLK_CMD_MASK, val);
+	return ret;
 }
 
 static int ti_pipe3_power_on(struct phy *x)
 {
+	u32 val;
+	u32 mask;
+	int ret;
+	unsigned long rate;
 	struct ti_pipe3 *phy = phy_get_drvdata(x);
 
-	omap_control_phy_power(phy->control_dev, 1);
+	if (!phy->phy_power_syscon) {
+		omap_control_phy_power(phy->control_dev, 1);
+		return 0;
+	}
 
-	return 0;
+	rate = clk_get_rate(phy->sys_clk);
+	if (!rate) {
+		dev_err(phy->dev, "Invalid clock rate\n");
+		return -EINVAL;
+	}
+	rate = rate / 1000000;
+	mask = OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
+		  OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK;
+	val = PIPE3_PHY_TX_RX_POWERON << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
+	val |= rate << OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
+
+	ret = regmap_update_bits(phy->phy_power_syscon, phy->power_reg,
+				 mask, val);
+	return ret;
 }
 
 static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy)
@@ -229,8 +274,15 @@ static int ti_pipe3_init(struct phy *x)
 	 * 18-1804.
 	 */
 	if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie")) {
-		omap_control_pcie_pcs(phy->control_dev, 0x96);
-		return 0;
+		if (!phy->pcs_syscon) {
+			omap_control_pcie_pcs(phy->control_dev, 0x96);
+			return 0;
+		}
+
+		val = 0x96 << OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT;
+		ret = regmap_update_bits(phy->pcs_syscon, phy->pcie_pcs_reg,
+					 PCIE_PCS_MASK, val);
+		return ret;
 	}
 
 	/* Bring it out of IDLE if it is IDLE */
@@ -308,51 +360,15 @@ static const struct phy_ops ops = {
 
 static const struct of_device_id ti_pipe3_id_table[];
 
-static int ti_pipe3_probe(struct platform_device *pdev)
+static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
 {
-	struct ti_pipe3 *phy;
-	struct phy *generic_phy;
-	struct phy_provider *phy_provider;
-	struct resource *res;
-	struct device_node *node = pdev->dev.of_node;
-	struct device_node *control_node;
-	struct platform_device *control_pdev;
-	const struct of_device_id *match;
 	struct clk *clk;
+	struct device *dev = phy->dev;
+	struct device_node *node = dev->of_node;
 
-	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
-	if (!phy)
-		return -ENOMEM;
-
-	phy->dev		= &pdev->dev;
-
-	if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
-		match = of_match_device(ti_pipe3_id_table, &pdev->dev);
-		if (!match)
-			return -EINVAL;
-
-		phy->dpll_map = (struct pipe3_dpll_map *)match->data;
-		if (!phy->dpll_map) {
-			dev_err(&pdev->dev, "no DPLL data\n");
-			return -EINVAL;
-		}
-
-		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-						   "pll_ctrl");
-		phy->pll_ctrl_base = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(phy->pll_ctrl_base))
-			return PTR_ERR(phy->pll_ctrl_base);
-
-		phy->sys_clk = devm_clk_get(phy->dev, "sysclk");
-		if (IS_ERR(phy->sys_clk)) {
-			dev_err(&pdev->dev, "unable to get sysclk\n");
-			return -EINVAL;
-		}
-	}
-
-	phy->refclk = devm_clk_get(phy->dev, "refclk");
+	phy->refclk = devm_clk_get(dev, "refclk");
 	if (IS_ERR(phy->refclk)) {
-		dev_err(&pdev->dev, "unable to get refclk\n");
+		dev_err(dev, "unable to get refclk\n");
 		/* older DTBs have missing refclk in SATA PHY
 		 * so don't bail out in case of SATA PHY.
 		 */
@@ -361,80 +377,194 @@ static int ti_pipe3_probe(struct platform_device *pdev)
 	}
 
 	if (!of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
-		phy->wkupclk = devm_clk_get(phy->dev, "wkupclk");
+		phy->wkupclk = devm_clk_get(dev, "wkupclk");
 		if (IS_ERR(phy->wkupclk)) {
-			dev_err(&pdev->dev, "unable to get wkupclk\n");
+			dev_err(dev, "unable to get wkupclk\n");
 			return PTR_ERR(phy->wkupclk);
 		}
 	} else {
 		phy->wkupclk = ERR_PTR(-ENODEV);
-		phy->dpll_reset_syscon = syscon_regmap_lookup_by_phandle(node,
-							"syscon-pllreset");
-		if (IS_ERR(phy->dpll_reset_syscon)) {
-			dev_info(&pdev->dev,
-				 "can't get syscon-pllreset, sata dpll won't idle\n");
-			phy->dpll_reset_syscon = NULL;
-		} else {
-			if (of_property_read_u32_index(node,
-						       "syscon-pllreset", 1,
-						       &phy->dpll_reset_reg)) {
-				dev_err(&pdev->dev,
-					"couldn't get pllreset reg. offset\n");
-				return -EINVAL;
-			}
+	}
+
+	if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie") ||
+	    phy->phy_power_syscon) {
+		phy->sys_clk = devm_clk_get(dev, "sysclk");
+		if (IS_ERR(phy->sys_clk)) {
+			dev_err(dev, "unable to get sysclk\n");
+			return -EINVAL;
 		}
 	}
 
 	if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
-
-		clk = devm_clk_get(phy->dev, "dpll_ref");
+		clk = devm_clk_get(dev, "dpll_ref");
 		if (IS_ERR(clk)) {
-			dev_err(&pdev->dev, "unable to get dpll ref clk\n");
+			dev_err(dev, "unable to get dpll ref clk\n");
 			return PTR_ERR(clk);
 		}
 		clk_set_rate(clk, 1500000000);
 
-		clk = devm_clk_get(phy->dev, "dpll_ref_m2");
+		clk = devm_clk_get(dev, "dpll_ref_m2");
 		if (IS_ERR(clk)) {
-			dev_err(&pdev->dev, "unable to get dpll ref m2 clk\n");
+			dev_err(dev, "unable to get dpll ref m2 clk\n");
 			return PTR_ERR(clk);
 		}
 		clk_set_rate(clk, 100000000);
 
-		clk = devm_clk_get(phy->dev, "phy-div");
+		clk = devm_clk_get(dev, "phy-div");
 		if (IS_ERR(clk)) {
-			dev_err(&pdev->dev, "unable to get phy-div clk\n");
+			dev_err(dev, "unable to get phy-div clk\n");
 			return PTR_ERR(clk);
 		}
 		clk_set_rate(clk, 100000000);
 
-		phy->div_clk = devm_clk_get(phy->dev, "div-clk");
+		phy->div_clk = devm_clk_get(dev, "div-clk");
 		if (IS_ERR(phy->div_clk)) {
-			dev_err(&pdev->dev, "unable to get div-clk\n");
+			dev_err(dev, "unable to get div-clk\n");
 			return PTR_ERR(phy->div_clk);
 		}
 	} else {
 		phy->div_clk = ERR_PTR(-ENODEV);
 	}
 
-	control_node = of_parse_phandle(node, "ctrl-module", 0);
-	if (!control_node) {
-		dev_err(&pdev->dev, "Failed to get control device phandle\n");
-		return -EINVAL;
+	return 0;
+}
+
+static int ti_pipe3_get_sysctrl(struct ti_pipe3 *phy)
+{
+	struct device *dev = phy->dev;
+	struct device_node *node = dev->of_node;
+	struct device_node *control_node;
+	struct platform_device *control_pdev;
+
+	phy->phy_power_syscon = syscon_regmap_lookup_by_phandle(node,
+							"syscon-phy-power");
+	if (IS_ERR(phy->phy_power_syscon)) {
+		dev_dbg(dev,
+			"can't get syscon-phy-power, using control device\n");
+		phy->phy_power_syscon = NULL;
+	} else {
+		if (of_property_read_u32_index(node,
+					       "syscon-phy-power", 1,
+					       &phy->power_reg)) {
+			dev_err(dev, "couldn't get power reg. offset\n");
+			return -EINVAL;
+		}
+	}
+
+	if (!phy->phy_power_syscon) {
+		control_node = of_parse_phandle(node, "ctrl-module", 0);
+		if (!control_node) {
+			dev_err(dev, "Failed to get control device phandle\n");
+			return -EINVAL;
+		}
+
+		control_pdev = of_find_device_by_node(control_node);
+		if (!control_pdev) {
+			dev_err(dev, "Failed to get control device\n");
+			return -EINVAL;
+		}
+
+		phy->control_dev = &control_pdev->dev;
+	}
+
+	if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
+		phy->pcs_syscon = syscon_regmap_lookup_by_phandle(node,
+								  "syscon-pcs");
+		if (IS_ERR(phy->pcs_syscon)) {
+			dev_dbg(dev,
+				"can't get syscon-pcs, using omap control\n");
+			phy->pcs_syscon = NULL;
+		} else {
+			if (of_property_read_u32_index(node,
+						       "syscon-pcs", 1,
+						       &phy->pcie_pcs_reg)) {
+				dev_err(dev,
+					"couldn't get pcie pcs reg. offset\n");
+				return -EINVAL;
+			}
+		}
+	}
+
+	if (of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
+		phy->dpll_reset_syscon = syscon_regmap_lookup_by_phandle(node,
+							"syscon-pllreset");
+		if (IS_ERR(phy->dpll_reset_syscon)) {
+			dev_info(dev,
+				 "can't get syscon-pllreset, sata dpll won't idle\n");
+			phy->dpll_reset_syscon = NULL;
+		} else {
+			if (of_property_read_u32_index(node,
+						       "syscon-pllreset", 1,
+						       &phy->dpll_reset_reg)) {
+				dev_err(dev,
+					"couldn't get pllreset reg. offset\n");
+				return -EINVAL;
+			}
+		}
 	}
 
-	control_pdev = of_find_device_by_node(control_node);
-	if (!control_pdev) {
-		dev_err(&pdev->dev, "Failed to get control device\n");
+	return 0;
+}
+
+static int ti_pipe3_get_pll_base(struct ti_pipe3 *phy)
+{
+	struct resource *res;
+	const struct of_device_id *match;
+	struct device *dev = phy->dev;
+	struct device_node *node = dev->of_node;
+	struct platform_device *pdev = to_platform_device(dev);
+
+	if (of_device_is_compatible(node, "ti,phy-pipe3-pcie"))
+		return 0;
+
+	match = of_match_device(ti_pipe3_id_table, dev);
+	if (!match)
+		return -EINVAL;
+
+	phy->dpll_map = (struct pipe3_dpll_map *)match->data;
+	if (!phy->dpll_map) {
+		dev_err(dev, "no DPLL data\n");
 		return -EINVAL;
 	}
 
-	phy->control_dev = &control_pdev->dev;
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "pll_ctrl");
+	phy->pll_ctrl_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(phy->pll_ctrl_base))
+		return PTR_ERR(phy->pll_ctrl_base);
+
+	return 0;
+}
 
-	omap_control_phy_power(phy->control_dev, 0);
+static int ti_pipe3_probe(struct platform_device *pdev)
+{
+	struct ti_pipe3 *phy;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	struct device_node *node = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy)
+		return -ENOMEM;
+
+	phy->dev		= dev;
+
+	ret = ti_pipe3_get_pll_base(phy);
+	if (ret)
+		return ret;
+
+	ret = ti_pipe3_get_sysctrl(phy);
+	if (ret)
+		return ret;
+
+	ret = ti_pipe3_get_clk(phy);
+	if (ret)
+		return ret;
 
 	platform_set_drvdata(pdev, phy);
-	pm_runtime_enable(phy->dev);
+	pm_runtime_enable(dev);
 
 	/*
 	 * Prevent auto-disable of refclk for SATA PHY due to Errata i783
@@ -446,13 +576,15 @@ static int ti_pipe3_probe(struct platform_device *pdev)
 		}
 	}
 
-	generic_phy = devm_phy_create(phy->dev, NULL, &ops);
+	generic_phy = devm_phy_create(dev, NULL, &ops);
 	if (IS_ERR(generic_phy))
 		return PTR_ERR(generic_phy);
 
 	phy_set_drvdata(generic_phy, phy);
-	phy_provider = devm_of_phy_provider_register(phy->dev,
-			of_phy_simple_xlate);
+
+	ti_pipe3_power_off(generic_phy);
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
 	if (IS_ERR(phy_provider))
 		return PTR_ERR(phy_provider);
 
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index 3a707dd14238..4a3fc6e59f8e 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -34,7 +34,7 @@
 #include <linux/usb/otg.h>
 #include <linux/phy/phy.h>
 #include <linux/pm_runtime.h>
-#include <linux/usb/musb-omap.h>
+#include <linux/usb/musb.h>
 #include <linux/usb/ulpi.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/consumer.h>
@@ -148,10 +148,10 @@
  * If VBUS is valid or ID is ground, then we know a
  * cable is present and we need to be runtime-enabled
  */
-static inline bool cable_present(enum omap_musb_vbus_id_status stat)
+static inline bool cable_present(enum musb_vbus_id_status stat)
 {
-	return stat == OMAP_MUSB_VBUS_VALID ||
-		stat == OMAP_MUSB_ID_GROUND;
+	return stat == MUSB_VBUS_VALID ||
+		stat == MUSB_ID_GROUND;
 }
 
 struct twl4030_usb {
@@ -170,7 +170,7 @@ struct twl4030_usb {
 	enum twl4030_usb_mode	usb_mode;
 
 	int			irq;
-	enum omap_musb_vbus_id_status linkstat;
+	enum musb_vbus_id_status linkstat;
 	bool			vbus_supplied;
 
 	struct delayed_work	id_workaround_work;
@@ -276,11 +276,11 @@ static bool twl4030_is_driving_vbus(struct twl4030_usb *twl)
 	return (ret & (ULPI_OTG_DRVVBUS | ULPI_OTG_CHRGVBUS)) ? true : false;
 }
 
-static enum omap_musb_vbus_id_status
+static enum musb_vbus_id_status
 	twl4030_usb_linkstat(struct twl4030_usb *twl)
 {
 	int	status;
-	enum omap_musb_vbus_id_status linkstat = OMAP_MUSB_UNKNOWN;
+	enum musb_vbus_id_status linkstat = MUSB_UNKNOWN;
 
 	twl->vbus_supplied = false;
 
@@ -306,14 +306,14 @@ static enum omap_musb_vbus_id_status
 		}
 
 		if (status & BIT(2))
-			linkstat = OMAP_MUSB_ID_GROUND;
+			linkstat = MUSB_ID_GROUND;
 		else if (status & BIT(7))
-			linkstat = OMAP_MUSB_VBUS_VALID;
+			linkstat = MUSB_VBUS_VALID;
 		else
-			linkstat = OMAP_MUSB_VBUS_OFF;
+			linkstat = MUSB_VBUS_OFF;
 	} else {
-		if (twl->linkstat != OMAP_MUSB_UNKNOWN)
-			linkstat = OMAP_MUSB_VBUS_OFF;
+		if (twl->linkstat != MUSB_UNKNOWN)
+			linkstat = MUSB_VBUS_OFF;
 	}
 
 	dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
@@ -535,7 +535,7 @@ static DEVICE_ATTR(vbus, 0444, twl4030_usb_vbus_show, NULL);
 static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
 {
 	struct twl4030_usb *twl = _twl;
-	enum omap_musb_vbus_id_status status;
+	enum musb_vbus_id_status status;
 	bool status_changed = false;
 
 	status = twl4030_usb_linkstat(twl);
@@ -567,11 +567,11 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
 			pm_runtime_mark_last_busy(twl->dev);
 			pm_runtime_put_autosuspend(twl->dev);
 		}
-		omap_musb_mailbox(status);
+		musb_mailbox(status);
 	}
 
 	/* don't schedule during sleep - irq works right then */
-	if (status == OMAP_MUSB_ID_GROUND && pm_runtime_active(twl->dev)) {
+	if (status == MUSB_ID_GROUND && pm_runtime_active(twl->dev)) {
 		cancel_delayed_work(&twl->id_workaround_work);
 		schedule_delayed_work(&twl->id_workaround_work, HZ);
 	}
@@ -670,7 +670,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	twl->dev		= &pdev->dev;
 	twl->irq		= platform_get_irq(pdev, 0);
 	twl->vbus_supplied	= false;
-	twl->linkstat		= OMAP_MUSB_UNKNOWN;
+	twl->linkstat		= MUSB_UNKNOWN;
 
 	twl->phy.dev		= twl->dev;
 	twl->phy.label		= "twl4030";
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index f2d77fe696ac..cb8a9c2a3a1f 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -43,8 +43,6 @@ MODULE_LICENSE("GPL");
 
 #define DELL_EVENT_GUID "9DBB5994-A997-11DA-B012-B622A1EF5492"
 
-static int acpi_video;
-
 MODULE_ALIAS("wmi:"DELL_EVENT_GUID);
 
 /*
@@ -159,7 +157,8 @@ static void dell_wmi_process_key(int reported_key)
 
 	/* Don't report brightness notifications that will also come via ACPI */
 	if ((key->keycode == KEY_BRIGHTNESSUP ||
-	     key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video)
+	     key->keycode == KEY_BRIGHTNESSDOWN) &&
+	    acpi_video_handles_brightness_key_presses())
 		return;
 
 	sparse_keymap_report_entry(dell_wmi_input_dev, key, 1, true);
@@ -398,7 +397,6 @@ static int __init dell_wmi_init(void)
 	}
 
 	dmi_walk(find_hk_type, NULL);
-	acpi_video = acpi_video_get_backlight_type() != acpi_backlight_vendor;
 
 	err = dell_wmi_input_setup();
 	if (err)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 0bed4733c4f0..f453d5dc085e 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3488,7 +3488,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 	/* Do not issue duplicate brightness change events to
 	 * userspace. tpacpi_detect_brightness_capabilities() must have
 	 * been called before this point  */
-	if (acpi_video_get_backlight_type() != acpi_backlight_vendor) {
+	if (acpi_video_handles_brightness_key_presses()) {
 		pr_info("This ThinkPad has standard ACPI backlight "
 			"brightness control, supported by the ACPI "
 			"video driver\n");
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 153a493b5413..63452f20e3e9 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -74,7 +74,6 @@ void pnp_device_detach(struct pnp_dev *pnp_dev)
 	if (pnp_dev->status == PNP_ATTACHED)
 		pnp_dev->status = PNP_READY;
 	mutex_unlock(&pnp_lock);
-	pnp_disable_dev(pnp_dev);
 }
 
 static int pnp_device_probe(struct device *dev)
@@ -131,6 +130,11 @@ static int pnp_device_remove(struct device *dev)
 			drv->remove(pnp_dev);
 		pnp_dev->driver = NULL;
 	}
+
+	if (pnp_dev->active &&
+	    (!drv || !(drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE)))
+		pnp_disable_dev(pnp_dev);
+
 	pnp_device_detach(pnp_dev);
 	return 0;
 }
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index 943c1cb9566c..f700723ca5d6 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -343,6 +343,7 @@ static void quirk_amd_mmconfig_area(struct pnp_dev *dev)
 static const unsigned int mch_quirk_devices[] = {
 	0x0154,	/* Ivy Bridge */
 	0x0c00,	/* Haswell */
+	0x1604, /* Broadwell */
 };
 
 static struct pci_dev *get_intel_host(void)
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 237d7aa73e8c..1ddd13cc0c07 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -160,22 +160,16 @@ config BATTERY_SBS
 config BATTERY_BQ27XXX
 	tristate "BQ27xxx battery driver"
 	help
-	  Say Y here to enable support for batteries with BQ27xxx (I2C/HDQ) chips.
+	  Say Y here to enable support for batteries with BQ27xxx chips.
 
 config BATTERY_BQ27XXX_I2C
-	bool "BQ27xxx I2C support"
+	tristate "BQ27xxx I2C support"
 	depends on BATTERY_BQ27XXX
 	depends on I2C
 	default y
 	help
-	  Say Y here to enable support for batteries with BQ27xxx (I2C) chips.
-
-config BATTERY_BQ27XXX_PLATFORM
-	bool "BQ27xxx HDQ support"
-	depends on BATTERY_BQ27XXX
-	default y
-	help
-	  Say Y here to enable support for batteries with BQ27xxx (HDQ) chips.
+	  Say Y here to enable support for batteries with BQ27xxx chips
+	  connected over an I2C bus.
 
 config BATTERY_DA9030
 	tristate "DA9030 battery driver"
@@ -508,8 +502,7 @@ config AXP20X_POWER
 	  This driver provides support for the power supply features of
 	  AXP20x PMIC.
 
-source "drivers/power/reset/Kconfig"
-
 endif # POWER_SUPPLY
 
+source "drivers/power/reset/Kconfig"
 source "drivers/power/avs/Kconfig"
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index b656638f8b39..0e4eab55f8d7 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_BATTERY_IPAQ_MICRO) += ipaq_micro_battery.o
 obj-$(CONFIG_BATTERY_WM97XX)	+= wm97xx_battery.o
 obj-$(CONFIG_BATTERY_SBS)	+= sbs-battery.o
 obj-$(CONFIG_BATTERY_BQ27XXX)	+= bq27xxx_battery.o
+obj-$(CONFIG_BATTERY_BQ27XXX_I2C) += bq27xxx_battery_i2c.o
 obj-$(CONFIG_BATTERY_DA9030)	+= da9030_battery.o
 obj-$(CONFIG_BATTERY_DA9052)	+= da9052-battery.o
 obj-$(CONFIG_CHARGER_DA9150)	+= da9150-charger.o
diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c
index 4afd76848bce..27e89536689a 100644
--- a/drivers/power/bq2415x_charger.c
+++ b/drivers/power/bq2415x_charger.c
@@ -1704,7 +1704,7 @@ error_4:
 error_3:
 	bq2415x_power_supply_exit(bq);
 error_2:
-	if (bq && bq->notify_node)
+	if (bq)
 		of_node_put(bq->notify_node);
 	kfree(name);
 error_1:
@@ -1724,9 +1724,7 @@ static int bq2415x_remove(struct i2c_client *client)
 	if (bq->nb.notifier_call)
 		power_supply_unreg_notifier(&bq->nb);
 
-	if (bq->notify_node)
-		of_node_put(bq->notify_node);
-
+	of_node_put(bq->notify_node);
 	bq2415x_sysfs_exit(bq);
 	bq2415x_power_supply_exit(bq);
 
diff --git a/drivers/power/bq27xxx_battery.c b/drivers/power/bq27xxx_battery.c
index 880233ce9343..6b027a418943 100644
--- a/drivers/power/bq27xxx_battery.c
+++ b/drivers/power/bq27xxx_battery.c
@@ -45,11 +45,7 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
-#include <linux/idr.h>
-#include <linux/i2c.h>
 #include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <asm/unaligned.h>
 
 #include <linux/power/bq27xxx_battery.h>
 
@@ -78,11 +74,6 @@
 #define BQ27XXX_POWER_CONSTANT		(29200) /* 29.2 µV^2 * 1000 */
 #define BQ27XXX_CURRENT_CONSTANT	(3570) /* 3.57 µV * 1000 */
 
-struct bq27xxx_device_info;
-struct bq27xxx_access_methods {
-	int (*read)(struct bq27xxx_device_info *di, u8 reg, bool single);
-};
-
 #define INVALID_REG_ADDR	0xff
 
 /*
@@ -110,40 +101,6 @@ enum bq27xxx_reg_index {
 	BQ27XXX_REG_AP,		/* Average Power */
 };
 
-struct bq27xxx_reg_cache {
-	int temperature;
-	int time_to_empty;
-	int time_to_empty_avg;
-	int time_to_full;
-	int charge_full;
-	int cycle_count;
-	int capacity;
-	int energy;
-	int flags;
-	int power_avg;
-	int health;
-};
-
-struct bq27xxx_device_info {
-	struct device		*dev;
-	int			id;
-	enum bq27xxx_chip	chip;
-
-	struct bq27xxx_reg_cache cache;
-	int charge_design_full;
-
-	unsigned long last_update;
-	struct delayed_work work;
-
-	struct power_supply	*bat;
-
-	struct bq27xxx_access_methods bus;
-
-	struct mutex lock;
-
-	u8 *regs;
-};
-
 /* Register mappings */
 static u8 bq27000_regs[] = {
 	0x00,	/* CONTROL	*/
@@ -198,10 +155,10 @@ static u8 bq27500_regs[] = {
 	INVALID_REG_ADDR,	/* TTECP - NA	*/
 	0x0c,	/* NAC		*/
 	0x12,	/* LMD(FCC)	*/
-	0x1e,	/* CYCT		*/
+	0x2a,	/* CYCT		*/
 	INVALID_REG_ADDR,	/* AE - NA	*/
-	0x20,	/* SOC(RSOC)	*/
-	0x2e,	/* DCAP(ILMD)	*/
+	0x2c,	/* SOC(RSOC)	*/
+	0x3c,	/* DCAP(ILMD)	*/
 	INVALID_REG_ADDR,	/* AP - NA	*/
 };
 
@@ -242,7 +199,7 @@ static u8 bq27541_regs[] = {
 	INVALID_REG_ADDR,	/* AE - NA	*/
 	0x2c,	/* SOC(RSOC)	*/
 	0x3c,	/* DCAP		*/
-	0x76,	/* AP		*/
+	0x24,	/* AP		*/
 };
 
 static u8 bq27545_regs[] = {
@@ -471,7 +428,10 @@ static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)
 {
 	int soc;
 
-	soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);
+	if (di->chip == BQ27000 || di->chip == BQ27010)
+		soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true);
+	else
+		soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);
 
 	if (soc < 0)
 		dev_dbg(di->dev, "error reading State-of-Charge\n");
@@ -536,7 +496,10 @@ static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
 {
 	int dcap;
 
-	dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);
+	if (di->chip == BQ27000 || di->chip == BQ27010)
+		dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true);
+	else
+		dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);
 
 	if (dcap < 0) {
 		dev_dbg(di->dev, "error reading initial last measured discharge\n");
@@ -544,7 +507,7 @@ static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
 	}
 
 	if (di->chip == BQ27000 || di->chip == BQ27010)
-		dcap *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
+		dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
 	else
 		dcap *= 1000;
 
@@ -710,7 +673,7 @@ static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
 	return POWER_SUPPLY_HEALTH_GOOD;
 }
 
-static void bq27xxx_battery_update(struct bq27xxx_device_info *di)
+void bq27xxx_battery_update(struct bq27xxx_device_info *di)
 {
 	struct bq27xxx_reg_cache cache = {0, };
 	bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010;
@@ -722,7 +685,7 @@ static void bq27xxx_battery_update(struct bq27xxx_device_info *di)
 	if (cache.flags >= 0) {
 		cache.temperature = bq27xxx_battery_read_temperature(di);
 		if (has_ci_flag && (cache.flags & BQ27000_FLAG_CI)) {
-			dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
+			dev_info_once(di->dev, "battery is not calibrated! ignoring capacity values\n");
 			cache.capacity = -ENODATA;
 			cache.energy = -ENODATA;
 			cache.time_to_empty = -ENODATA;
@@ -761,6 +724,7 @@ static void bq27xxx_battery_update(struct bq27xxx_device_info *di)
 
 	di->last_update = jiffies;
 }
+EXPORT_SYMBOL_GPL(bq27xxx_battery_update);
 
 static void bq27xxx_battery_poll(struct work_struct *work)
 {
@@ -991,32 +955,30 @@ static void bq27xxx_external_power_changed(struct power_supply *psy)
 	schedule_delayed_work(&di->work, 0);
 }
 
-static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
-				    const char *name)
+int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
 {
-	int ret;
 	struct power_supply_desc *psy_desc;
 	struct power_supply_config psy_cfg = { .drv_data = di, };
 
+	INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);
+	mutex_init(&di->lock);
+	di->regs = bq27xxx_regs[di->chip];
+
 	psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
 	if (!psy_desc)
 		return -ENOMEM;
 
-	psy_desc->name = name;
+	psy_desc->name = di->name;
 	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
 	psy_desc->properties = bq27xxx_battery_props[di->chip].props;
 	psy_desc->num_properties = bq27xxx_battery_props[di->chip].size;
 	psy_desc->get_property = bq27xxx_battery_get_property;
 	psy_desc->external_power_changed = bq27xxx_external_power_changed;
 
-	INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);
-	mutex_init(&di->lock);
-
 	di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
 	if (IS_ERR(di->bat)) {
-		ret = PTR_ERR(di->bat);
-		dev_err(di->dev, "failed to register battery: %d\n", ret);
-		return ret;
+		dev_err(di->dev, "failed to register battery\n");
+		return PTR_ERR(di->bat);
 	}
 
 	dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);
@@ -1025,8 +987,9 @@ static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(bq27xxx_battery_setup);
 
-static void bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)
+void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
 {
 	/*
 	 * power_supply_unregister call bq27xxx_battery_get_property which
@@ -1042,192 +1005,7 @@ static void bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)
 
 	mutex_destroy(&di->lock);
 }
-
-/* i2c specific code */
-#ifdef CONFIG_BATTERY_BQ27XXX_I2C
-
-/* If the system has several batteries we need a different name for each
- * of them...
- */
-static DEFINE_IDR(battery_id);
-static DEFINE_MUTEX(battery_mutex);
-
-static irqreturn_t bq27xxx_battery_irq_handler_thread(int irq, void *data)
-{
-	struct bq27xxx_device_info *di = data;
-
-	bq27xxx_battery_update(di);
-
-	return IRQ_HANDLED;
-}
-
-static int bq27xxx_battery_i2c_read(struct bq27xxx_device_info *di, u8 reg,
-				    bool single)
-{
-	struct i2c_client *client = to_i2c_client(di->dev);
-	struct i2c_msg msg[2];
-	unsigned char data[2];
-	int ret;
-
-	if (!client->adapter)
-		return -ENODEV;
-
-	msg[0].addr = client->addr;
-	msg[0].flags = 0;
-	msg[0].buf = &reg;
-	msg[0].len = sizeof(reg);
-	msg[1].addr = client->addr;
-	msg[1].flags = I2C_M_RD;
-	msg[1].buf = data;
-	if (single)
-		msg[1].len = 1;
-	else
-		msg[1].len = 2;
-
-	ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
-	if (ret < 0)
-		return ret;
-
-	if (!single)
-		ret = get_unaligned_le16(data);
-	else
-		ret = data[0];
-
-	return ret;
-}
-
-static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
-				     const struct i2c_device_id *id)
-{
-	char *name;
-	struct bq27xxx_device_info *di;
-	int num;
-	int retval = 0;
-
-	/* Get new ID for the new battery device */
-	mutex_lock(&battery_mutex);
-	num = idr_alloc(&battery_id, client, 0, 0, GFP_KERNEL);
-	mutex_unlock(&battery_mutex);
-	if (num < 0)
-		return num;
-
-	name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
-	if (!name) {
-		retval = -ENOMEM;
-		goto batt_failed;
-	}
-
-	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
-	if (!di) {
-		retval = -ENOMEM;
-		goto batt_failed;
-	}
-
-	di->id = num;
-	di->dev = &client->dev;
-	di->chip = id->driver_data;
-	di->bus.read = &bq27xxx_battery_i2c_read;
-	di->regs = bq27xxx_regs[di->chip];
-
-	retval = bq27xxx_powersupply_init(di, name);
-	if (retval)
-		goto batt_failed;
-
-	/* Schedule a polling after about 1 min */
-	schedule_delayed_work(&di->work, 60 * HZ);
-
-	i2c_set_clientdata(client, di);
-
-	if (client->irq) {
-		retval = devm_request_threaded_irq(&client->dev, client->irq,
-				NULL, bq27xxx_battery_irq_handler_thread,
-				IRQF_ONESHOT,
-				name, di);
-		if (retval) {
-			dev_err(&client->dev,
-				"Unable to register IRQ %d error %d\n",
-				client->irq, retval);
-			return retval;
-		}
-	}
-
-	return 0;
-
-batt_failed:
-	mutex_lock(&battery_mutex);
-	idr_remove(&battery_id, num);
-	mutex_unlock(&battery_mutex);
-
-	return retval;
-}
-
-static int bq27xxx_battery_i2c_remove(struct i2c_client *client)
-{
-	struct bq27xxx_device_info *di = i2c_get_clientdata(client);
-
-	bq27xxx_powersupply_unregister(di);
-
-	mutex_lock(&battery_mutex);
-	idr_remove(&battery_id, di->id);
-	mutex_unlock(&battery_mutex);
-
-	return 0;
-}
-
-static const struct i2c_device_id bq27xxx_id[] = {
-	{ "bq27200", BQ27000 },
-	{ "bq27210", BQ27010 },
-	{ "bq27500", BQ27500 },
-	{ "bq27510", BQ27500 },
-	{ "bq27520", BQ27500 },
-	{ "bq27530", BQ27530 },
-	{ "bq27531", BQ27530 },
-	{ "bq27541", BQ27541 },
-	{ "bq27542", BQ27541 },
-	{ "bq27546", BQ27541 },
-	{ "bq27742", BQ27541 },
-	{ "bq27545", BQ27545 },
-	{ "bq27421", BQ27421 },
-	{ "bq27425", BQ27421 },
-	{ "bq27441", BQ27421 },
-	{ "bq27621", BQ27421 },
-	{},
-};
-MODULE_DEVICE_TABLE(i2c, bq27xxx_id);
-
-static struct i2c_driver bq27xxx_battery_i2c_driver = {
-	.driver = {
-		.name = "bq27xxx-battery",
-	},
-	.probe = bq27xxx_battery_i2c_probe,
-	.remove = bq27xxx_battery_i2c_remove,
-	.id_table = bq27xxx_id,
-};
-
-static inline int bq27xxx_battery_i2c_init(void)
-{
-	int ret = i2c_add_driver(&bq27xxx_battery_i2c_driver);
-
-	if (ret)
-		pr_err("Unable to register BQ27xxx i2c driver\n");
-
-	return ret;
-}
-
-static inline void bq27xxx_battery_i2c_exit(void)
-{
-	i2c_del_driver(&bq27xxx_battery_i2c_driver);
-}
-
-#else
-
-static inline int bq27xxx_battery_i2c_init(void) { return 0; }
-static inline void bq27xxx_battery_i2c_exit(void) {};
-
-#endif
-
-/* platform specific code */
-#ifdef CONFIG_BATTERY_BQ27XXX_PLATFORM
+EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
 
 static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,
 					 bool single)
@@ -1267,7 +1045,6 @@ static int bq27xxx_battery_platform_probe(struct platform_device *pdev)
 {
 	struct bq27xxx_device_info *di;
 	struct bq27xxx_platform_data *pdata = pdev->dev.platform_data;
-	const char *name;
 
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform_data supplied\n");
@@ -1292,83 +1069,36 @@ static int bq27xxx_battery_platform_probe(struct platform_device *pdev)
 
 	di->dev = &pdev->dev;
 	di->chip = pdata->chip;
-	di->regs = bq27xxx_regs[di->chip];
-
-	name = pdata->name ?: dev_name(&pdev->dev);
-	di->bus.read = &bq27xxx_battery_platform_read;
+	di->name = pdata->name ?: dev_name(&pdev->dev);
+	di->bus.read = bq27xxx_battery_platform_read;
 
-	return bq27xxx_powersupply_init(di, name);
+	return bq27xxx_battery_setup(di);
 }
 
 static int bq27xxx_battery_platform_remove(struct platform_device *pdev)
 {
 	struct bq27xxx_device_info *di = platform_get_drvdata(pdev);
 
-	bq27xxx_powersupply_unregister(di);
+	bq27xxx_battery_teardown(di);
 
 	return 0;
 }
 
+static const struct platform_device_id bq27xxx_battery_platform_id_table[] = {
+	{ "bq27000-battery", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table);
+
 static struct platform_driver bq27xxx_battery_platform_driver = {
 	.probe	= bq27xxx_battery_platform_probe,
 	.remove = bq27xxx_battery_platform_remove,
 	.driver = {
 		.name = "bq27000-battery",
 	},
+	.id_table = bq27xxx_battery_platform_id_table,
 };
-
-static inline int bq27xxx_battery_platform_init(void)
-{
-	int ret = platform_driver_register(&bq27xxx_battery_platform_driver);
-
-	if (ret)
-		pr_err("Unable to register BQ27xxx platform driver\n");
-
-	return ret;
-}
-
-static inline void bq27xxx_battery_platform_exit(void)
-{
-	platform_driver_unregister(&bq27xxx_battery_platform_driver);
-}
-
-#else
-
-static inline int bq27xxx_battery_platform_init(void) { return 0; }
-static inline void bq27xxx_battery_platform_exit(void) {};
-
-#endif
-
-/*
- * Module stuff
- */
-
-static int __init bq27xxx_battery_init(void)
-{
-	int ret;
-
-	ret = bq27xxx_battery_i2c_init();
-	if (ret)
-		return ret;
-
-	ret = bq27xxx_battery_platform_init();
-	if (ret)
-		bq27xxx_battery_i2c_exit();
-
-	return ret;
-}
-module_init(bq27xxx_battery_init);
-
-static void __exit bq27xxx_battery_exit(void)
-{
-	bq27xxx_battery_platform_exit();
-	bq27xxx_battery_i2c_exit();
-}
-module_exit(bq27xxx_battery_exit);
-
-#ifdef CONFIG_BATTERY_BQ27XXX_PLATFORM
-MODULE_ALIAS("platform:bq27000-battery");
-#endif
+module_platform_driver(bq27xxx_battery_platform_driver);
 
 MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
 MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
diff --git a/drivers/power/bq27xxx_battery_i2c.c b/drivers/power/bq27xxx_battery_i2c.c
new file mode 100644
index 000000000000..9429e66be096
--- /dev/null
+++ b/drivers/power/bq27xxx_battery_i2c.c
@@ -0,0 +1,150 @@
+/*
+ * SCI Reset driver for Keystone based devices
+ *
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *	Andrew F. Davis <afd@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <asm/unaligned.h>
+
+#include <linux/power/bq27xxx_battery.h>
+
+static irqreturn_t bq27xxx_battery_irq_handler_thread(int irq, void *data)
+{
+	struct bq27xxx_device_info *di = data;
+
+	bq27xxx_battery_update(di);
+
+	return IRQ_HANDLED;
+}
+
+static int bq27xxx_battery_i2c_read(struct bq27xxx_device_info *di, u8 reg,
+				    bool single)
+{
+	struct i2c_client *client = to_i2c_client(di->dev);
+	struct i2c_msg msg[2];
+	unsigned char data[2];
+	int ret;
+
+	if (!client->adapter)
+		return -ENODEV;
+
+	msg[0].addr = client->addr;
+	msg[0].flags = 0;
+	msg[0].buf = &reg;
+	msg[0].len = sizeof(reg);
+	msg[1].addr = client->addr;
+	msg[1].flags = I2C_M_RD;
+	msg[1].buf = data;
+	if (single)
+		msg[1].len = 1;
+	else
+		msg[1].len = 2;
+
+	ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
+	if (ret < 0)
+		return ret;
+
+	if (!single)
+		ret = get_unaligned_le16(data);
+	else
+		ret = data[0];
+
+	return ret;
+}
+
+static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
+				     const struct i2c_device_id *id)
+{
+	struct bq27xxx_device_info *di;
+	int ret;
+
+	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
+	if (!di)
+		return -ENOMEM;
+
+	di->dev = &client->dev;
+	di->chip = id->driver_data;
+	di->name = id->name;
+	di->bus.read = bq27xxx_battery_i2c_read;
+
+	ret = bq27xxx_battery_setup(di);
+	if (ret)
+		return ret;
+
+	/* Schedule a polling after about 1 min */
+	schedule_delayed_work(&di->work, 60 * HZ);
+
+	i2c_set_clientdata(client, di);
+
+	if (client->irq) {
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+				NULL, bq27xxx_battery_irq_handler_thread,
+				IRQF_ONESHOT,
+				di->name, di);
+		if (ret) {
+			dev_err(&client->dev,
+				"Unable to register IRQ %d error %d\n",
+				client->irq, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int bq27xxx_battery_i2c_remove(struct i2c_client *client)
+{
+	struct bq27xxx_device_info *di = i2c_get_clientdata(client);
+
+	bq27xxx_battery_teardown(di);
+
+	return 0;
+}
+
+static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
+	{ "bq27200", BQ27000 },
+	{ "bq27210", BQ27010 },
+	{ "bq27500", BQ27500 },
+	{ "bq27510", BQ27500 },
+	{ "bq27520", BQ27500 },
+	{ "bq27530", BQ27530 },
+	{ "bq27531", BQ27530 },
+	{ "bq27541", BQ27541 },
+	{ "bq27542", BQ27541 },
+	{ "bq27546", BQ27541 },
+	{ "bq27742", BQ27541 },
+	{ "bq27545", BQ27545 },
+	{ "bq27421", BQ27421 },
+	{ "bq27425", BQ27421 },
+	{ "bq27441", BQ27421 },
+	{ "bq27621", BQ27421 },
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, bq27xxx_i2c_id_table);
+
+static struct i2c_driver bq27xxx_battery_i2c_driver = {
+	.driver = {
+		.name = "bq27xxx-battery",
+	},
+	.probe = bq27xxx_battery_i2c_probe,
+	.remove = bq27xxx_battery_i2c_remove,
+	.id_table = bq27xxx_i2c_id_table,
+};
+module_i2c_driver(bq27xxx_battery_i2c_driver);
+
+MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
+MODULE_DESCRIPTION("BQ27xxx battery monitor i2c driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/power/ds2782_battery.c b/drivers/power/ds2782_battery.c
index ed4d756d21e4..a1b7e0592245 100644
--- a/drivers/power/ds2782_battery.c
+++ b/drivers/power/ds2782_battery.c
@@ -59,7 +59,7 @@ struct ds278x_info {
 	struct i2c_client	*client;
 	struct power_supply	*battery;
 	struct power_supply_desc	battery_desc;
-	struct ds278x_battery_ops  *ops;
+	const struct ds278x_battery_ops *ops;
 	struct delayed_work	bat_work;
 	int			id;
 	int                     rsns;
@@ -361,7 +361,7 @@ enum ds278x_num_id {
 	DS2786,
 };
 
-static struct ds278x_battery_ops ds278x_ops[] = {
+static const struct ds278x_battery_ops ds278x_ops[] = {
 	[DS2782] = {
 		.get_battery_current  = ds2782_get_current,
 		.get_battery_voltage  = ds2782_get_voltage,
diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c
index fedc5818fab7..edb36bf781b0 100644
--- a/drivers/power/generic-adc-battery.c
+++ b/drivers/power/generic-adc-battery.c
@@ -206,7 +206,7 @@ static void gab_work(struct work_struct *work)
 	bool is_plugged;
 	int status;
 
-	delayed_work = container_of(work, struct delayed_work, work);
+	delayed_work = to_delayed_work(work);
 	adc_bat = container_of(delayed_work, struct gab, bat_work);
 	pdata = adc_bat->pdata;
 	status = adc_bat->status;
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index f2a7d970388f..46a292aa182d 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -76,7 +76,7 @@ static inline int isp1704_read(struct isp1704_charger *isp, u32 reg)
 	return usb_phy_io_read(isp->phy, reg);
 }
 
-static inline int isp1704_write(struct isp1704_charger *isp, u32 val, u32 reg)
+static inline int isp1704_write(struct isp1704_charger *isp, u32 reg, u32 val)
 {
 	return usb_phy_io_write(isp->phy, val, reg);
 }
diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c
index 6d39d52040d4..17876caf31e5 100644
--- a/drivers/power/max8903_charger.c
+++ b/drivers/power/max8903_charger.c
@@ -291,10 +291,10 @@ static int max8903_probe(struct platform_device *pdev)
 
 	if (pdata->dc_valid) {
 		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->dok),
-						NULL, max8903_dcin,
-						IRQF_TRIGGER_FALLING |
-						IRQF_TRIGGER_RISING,
-						"MAX8903 DC IN", data);
+					NULL, max8903_dcin,
+					IRQF_TRIGGER_FALLING |
+					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+					"MAX8903 DC IN", data);
 		if (ret) {
 			dev_err(dev, "Cannot request irq %d for DC (%d)\n",
 					gpio_to_irq(pdata->dok), ret);
@@ -304,10 +304,10 @@ static int max8903_probe(struct platform_device *pdev)
 
 	if (pdata->usb_valid) {
 		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->uok),
-						NULL, max8903_usbin,
-						IRQF_TRIGGER_FALLING |
-						IRQF_TRIGGER_RISING,
-						"MAX8903 USB IN", data);
+					NULL, max8903_usbin,
+					IRQF_TRIGGER_FALLING |
+					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+					"MAX8903 USB IN", data);
 		if (ret) {
 			dev_err(dev, "Cannot request irq %d for USB (%d)\n",
 					gpio_to_irq(pdata->uok), ret);
@@ -317,10 +317,10 @@ static int max8903_probe(struct platform_device *pdev)
 
 	if (pdata->flt) {
 		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->flt),
-						NULL, max8903_fault,
-						IRQF_TRIGGER_FALLING |
-						IRQF_TRIGGER_RISING,
-						"MAX8903 Fault", data);
+					NULL, max8903_fault,
+					IRQF_TRIGGER_FALLING |
+					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+					"MAX8903 Fault", data);
 		if (ret) {
 			dev_err(dev, "Cannot request irq %d for Fault (%d)\n",
 					gpio_to_irq(pdata->flt), ret);
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 3f6b5dd7c3d4..1b5d450586d1 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -198,6 +198,7 @@ static int __init at91_reset_probe(struct platform_device *pdev)
 			at91_ramc_base[idx] = of_iomap(np, 0);
 			if (!at91_ramc_base[idx]) {
 				dev_err(&pdev->dev, "Could not map ram controller address\n");
+				of_node_put(np);
 				return -ENODEV;
 			}
 			idx++;
diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c
index 83c42ea88f2b..57246cdbd042 100644
--- a/drivers/power/test_power.c
+++ b/drivers/power/test_power.c
@@ -301,6 +301,8 @@ static int map_get_value(struct battery_property_map *map, const char *key,
 	buf[MAX_KEYLENGTH-1] = '\0';
 
 	cr = strnlen(buf, MAX_KEYLENGTH) - 1;
+	if (cr < 0)
+		return def_val;
 	if (buf[cr] == '\n')
 		buf[cr] = '\0';
 
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index 48747c28a43d..6c592dc71aee 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -388,7 +388,7 @@ static int get_domain_enable(struct powercap_zone *power_zone, bool *mode)
 }
 
 /* per RAPL domain ops, in the order of rapl_domain_type */
-static struct powercap_zone_ops zone_ops[] = {
+static const struct powercap_zone_ops zone_ops[] = {
 	/* RAPL_DOMAIN_PACKAGE */
 	{
 		.get_energy_uj = get_energy_counter,
@@ -584,7 +584,7 @@ static int get_max_power(struct powercap_zone *power_zone, int id,
 	return ret;
 }
 
-static struct powercap_zone_constraint_ops constraint_ops = {
+static const struct powercap_zone_constraint_ops constraint_ops = {
 	.set_power_limit_uw = set_power_limit,
 	.get_power_limit_uw = get_current_power_limit,
 	.set_time_window_us = set_time_window,
@@ -988,16 +988,16 @@ static void set_floor_freq_atom(struct rapl_domain *rd, bool enable)
 	}
 
 	if (!power_ctrl_orig_val)
-		iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_PMC_READ,
-			rapl_defaults->floor_freq_reg_addr,
-				&power_ctrl_orig_val);
+		iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_CR_READ,
+			      rapl_defaults->floor_freq_reg_addr,
+			      &power_ctrl_orig_val);
 	mdata = power_ctrl_orig_val;
 	if (enable) {
 		mdata &= ~(0x7f << 8);
 		mdata |= 1 << 8;
 	}
-	iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_PMC_WRITE,
-		rapl_defaults->floor_freq_reg_addr, mdata);
+	iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_CR_WRITE,
+		       rapl_defaults->floor_freq_reg_addr, mdata);
 }
 
 static u64 rapl_compute_time_window_core(struct rapl_package *rp, u64 value,
diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 84419af16f77..14bde0db8c24 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -293,8 +293,8 @@ err_alloc:
 }
 
 static int create_constraints(struct powercap_zone *power_zone,
-				int nr_constraints,
-				struct powercap_zone_constraint_ops *const_ops)
+			int nr_constraints,
+			const struct powercap_zone_constraint_ops *const_ops)
 {
 	int i;
 	int ret = 0;
@@ -492,13 +492,13 @@ static struct class powercap_class = {
 };
 
 struct powercap_zone *powercap_register_zone(
-				struct powercap_zone *power_zone,
-				struct powercap_control_type *control_type,
-				const char *name,
-				struct powercap_zone *parent,
-				const struct powercap_zone_ops *ops,
-				int nr_constraints,
-				struct powercap_zone_constraint_ops *const_ops)
+			struct powercap_zone *power_zone,
+			struct powercap_control_type *control_type,
+			const char *name,
+			struct powercap_zone *parent,
+			const struct powercap_zone_ops *ops,
+			int nr_constraints,
+			const struct powercap_zone_constraint_ops *const_ops)
 {
 	int result;
 	int nr_attrs;
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 8df0b0e62976..8155e80dd3f8 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -274,6 +274,15 @@ config REGULATOR_ISL6271A
 	help
 	  This driver supports ISL6271A voltage regulator chip.
 
+config REGULATOR_LM363X
+	tristate "TI LM363X voltage regulators"
+	depends on MFD_TI_LMU
+	help
+	  This driver supports LM3631 and LM3632 voltage regulators for
+	  the LCD bias.
+	  One boost output voltage is configurable and always on.
+	  Other LDOs are used for the display module.
+
 config REGULATOR_LP3971
 	tristate "National Semiconductors LP3971 PMIC regulator driver"
 	depends on I2C
@@ -446,6 +455,7 @@ config REGULATOR_MC13892
 config REGULATOR_MT6311
 	tristate "MediaTek MT6311 PMIC"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  Say y here to select this option to enable the power regulator of
 	  MediaTek MT6311 PMIC.
@@ -504,6 +514,22 @@ config REGULATOR_PFUZE100
 	  Say y here to support the regulators found on the Freescale
 	  PFUZE100/PFUZE200 PMIC.
 
+config REGULATOR_PV88060
+	tristate "Powerventure Semiconductor PV88060 regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say y here to support the voltage regulators and convertors
+	  PV88060
+
+config REGULATOR_PV88090
+	tristate "Powerventure Semiconductor PV88090 regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say y here to support the voltage regulators and convertors
+	  on PV88090
+
 config REGULATOR_PWM
 	tristate "PWM voltage regulator"
 	depends on PWM
@@ -588,10 +614,10 @@ config REGULATOR_S2MPA01
 	 via I2C bus. S2MPA01 has 10 Bucks and 26 LDO outputs.
 
 config REGULATOR_S2MPS11
-	tristate "Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage regulator"
+	tristate "Samsung S2MPS11/13/14/15/S2MPU02 voltage regulator"
 	depends on MFD_SEC_CORE
 	help
-	 This driver supports a Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage
+	 This driver supports a Samsung S2MPS11/13/14/15/S2MPU02 voltage
 	 output regulator via I2C bus. The chip is comprised of high efficient
 	 Buck converters including Dual-Phase Buck converter, Buck-Boost
 	 converter, various LDOs.
@@ -680,6 +706,13 @@ config REGULATOR_TPS6507X
 	  three step-down converters and two general-purpose LDO voltage regulators.
 	  It supports TI's software based Class-2 SmartReflex implementation.
 
+config REGULATOR_TPS65086
+	tristate "TI TPS65086 Power regulators"
+	depends on MFD_TPS65086
+	help
+	  This driver provides support for the voltage regulators on
+	  TI TPS65086 PMICs.
+
 config REGULATOR_TPS65090
 	tristate "TI TPS65090 Power regulator"
 	depends on MFD_TPS65090
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 0f8174913c17..980b1943fa81 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
 obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o
 obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
 obj-$(CONFIG_REGULATOR_ISL9305) += isl9305.o
+obj-$(CONFIG_REGULATOR_LM363X) += lm363x-regulator.o
 obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
 obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
 obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o
@@ -66,6 +67,8 @@ obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o
 obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
 obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
+obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o
+obj-$(CONFIG_REGULATOR_PV88090) += pv88090-regulator.o
 obj-$(CONFIG_REGULATOR_PWM) += pwm-regulator.o
 obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o
 obj-$(CONFIG_REGULATOR_PBIAS) += pbias-regulator.o
@@ -85,6 +88,7 @@ obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65086) += tps65086-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65090) += tps65090-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index 35de22fdb7a0..f2e1a39ce0f3 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -27,8 +27,8 @@
 #define AXP20X_IO_ENABLED		0x03
 #define AXP20X_IO_DISABLED		0x07
 
-#define AXP22X_IO_ENABLED		0x04
-#define AXP22X_IO_DISABLED		0x03
+#define AXP22X_IO_ENABLED		0x03
+#define AXP22X_IO_DISABLED		0x04
 
 #define AXP20X_WORKMODE_DCDC2_MASK	BIT(2)
 #define AXP20X_WORKMODE_DCDC3_MASK	BIT(1)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 73b7683355cd..744c9889f88d 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -132,24 +132,24 @@ static bool have_full_constraints(void)
 	return has_full_constraints || of_have_populated_dt();
 }
 
+static inline struct regulator_dev *rdev_get_supply(struct regulator_dev *rdev)
+{
+	if (rdev && rdev->supply)
+		return rdev->supply->rdev;
+
+	return NULL;
+}
+
 /**
  * regulator_lock_supply - lock a regulator and its supplies
  * @rdev:         regulator source
  */
 static void regulator_lock_supply(struct regulator_dev *rdev)
 {
-	struct regulator *supply;
-	int i = 0;
-
-	while (1) {
-		mutex_lock_nested(&rdev->mutex, i++);
-		supply = rdev->supply;
-
-		if (!rdev->supply)
-			return;
+	int i;
 
-		rdev = supply->rdev;
-	}
+	for (i = 0; rdev; rdev = rdev_get_supply(rdev), i++)
+		mutex_lock_nested(&rdev->mutex, i);
 }
 
 /**
@@ -2368,7 +2368,6 @@ static void regulator_disable_work(struct work_struct *work)
 int regulator_disable_deferred(struct regulator *regulator, int ms)
 {
 	struct regulator_dev *rdev = regulator->rdev;
-	int ret;
 
 	if (regulator->always_on)
 		return 0;
@@ -2380,13 +2379,9 @@ int regulator_disable_deferred(struct regulator *regulator, int ms)
 	rdev->deferred_disables++;
 	mutex_unlock(&rdev->mutex);
 
-	ret = queue_delayed_work(system_power_efficient_wq,
-				 &rdev->disable_work,
-				 msecs_to_jiffies(ms));
-	if (ret < 0)
-		return ret;
-	else
-		return 0;
+	queue_delayed_work(system_power_efficient_wq, &rdev->disable_work,
+			   msecs_to_jiffies(ms));
+	return 0;
 }
 EXPORT_SYMBOL_GPL(regulator_disable_deferred);
 
@@ -3451,8 +3446,10 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = regulator_get(dev,
-						      consumers[i].supply);
+		consumers[i].consumer = _regulator_get(dev,
+						       consumers[i].supply,
+						       false,
+						       !consumers[i].optional);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",
@@ -3708,7 +3705,7 @@ static umode_t regulator_attr_is_visible(struct kobject *kobj,
 					 struct attribute *attr, int idx)
 {
 	struct device *dev = kobj_to_dev(kobj);
-	struct regulator_dev *rdev = container_of(dev, struct regulator_dev, dev);
+	struct regulator_dev *rdev = dev_to_rdev(dev);
 	const struct regulator_ops *ops = rdev->desc->ops;
 	umode_t mode = attr->mode;
 
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index affa1b191314..33e8f3b8d2bd 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -257,7 +257,7 @@ static const struct regulator_linear_range da9034_ldo12_ranges[] = {
 	REGULATOR_LINEAR_RANGE(2700000, 8, 15, 50000),
 };
 
-static struct regulator_ops da903x_regulator_ldo_ops = {
+static const struct regulator_ops da903x_regulator_ldo_ops = {
 	.set_voltage_sel = da903x_set_voltage_sel,
 	.get_voltage_sel = da903x_get_voltage_sel,
 	.list_voltage	= regulator_list_voltage_linear,
@@ -268,7 +268,7 @@ static struct regulator_ops da903x_regulator_ldo_ops = {
 };
 
 /* NOTE: this is dedicated for the insane DA9030 LDO14 */
-static struct regulator_ops da9030_regulator_ldo14_ops = {
+static const struct regulator_ops da9030_regulator_ldo14_ops = {
 	.set_voltage_sel = da903x_set_voltage_sel,
 	.get_voltage_sel = da903x_get_voltage_sel,
 	.list_voltage	= da9030_list_ldo14_voltage,
@@ -279,7 +279,7 @@ static struct regulator_ops da9030_regulator_ldo14_ops = {
 };
 
 /* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks  */
-static struct regulator_ops da9030_regulator_ldo1_15_ops = {
+static const struct regulator_ops da9030_regulator_ldo1_15_ops = {
 	.set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
 	.get_voltage_sel = da903x_get_voltage_sel,
 	.list_voltage	= regulator_list_voltage_linear,
@@ -289,7 +289,7 @@ static struct regulator_ops da9030_regulator_ldo1_15_ops = {
 	.is_enabled	= da903x_is_enabled,
 };
 
-static struct regulator_ops da9034_regulator_dvc_ops = {
+static const struct regulator_ops da9034_regulator_dvc_ops = {
 	.set_voltage_sel = da9034_set_dvc_voltage_sel,
 	.get_voltage_sel = da903x_get_voltage_sel,
 	.list_voltage	= regulator_list_voltage_linear,
@@ -300,7 +300,7 @@ static struct regulator_ops da9034_regulator_dvc_ops = {
 };
 
 /* NOTE: this is dedicated for the insane LDO12 */
-static struct regulator_ops da9034_regulator_ldo12_ops = {
+static const struct regulator_ops da9034_regulator_ldo12_ops = {
 	.set_voltage_sel = da903x_set_voltage_sel,
 	.get_voltage_sel = da903x_get_voltage_sel,
 	.list_voltage	= regulator_list_voltage_linear_range,
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index 12a25b40e473..1050cb77561a 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -265,7 +265,7 @@ static int da9052_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 	return ret;
 }
 
-static struct regulator_ops da9052_dcdc_ops = {
+static const struct regulator_ops da9052_dcdc_ops = {
 	.get_current_limit = da9052_dcdc_get_current_limit,
 	.set_current_limit = da9052_dcdc_set_current_limit,
 
@@ -279,7 +279,7 @@ static struct regulator_ops da9052_dcdc_ops = {
 	.disable = regulator_disable_regmap,
 };
 
-static struct regulator_ops da9052_ldo_ops = {
+static const struct regulator_ops da9052_ldo_ops = {
 	.list_voltage = da9052_list_voltage,
 	.map_voltage = da9052_map_voltage,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index cafdafbffcaf..d029c941a1e1 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -324,7 +324,7 @@ static int da9055_suspend_disable(struct regulator_dev *rdev)
 		return 0;
 }
 
-static struct regulator_ops da9055_buck_ops = {
+static const struct regulator_ops da9055_buck_ops = {
 	.get_mode = da9055_buck_get_mode,
 	.set_mode = da9055_buck_set_mode,
 
@@ -345,7 +345,7 @@ static struct regulator_ops da9055_buck_ops = {
 	.set_suspend_mode = da9055_buck_set_mode,
 };
 
-static struct regulator_ops da9055_ldo_ops = {
+static const struct regulator_ops da9055_ldo_ops = {
 	.get_mode = da9055_ldo_get_mode,
 	.set_mode = da9055_ldo_set_mode,
 
diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c
index 5638fe8d759d..0638c8b40521 100644
--- a/drivers/regulator/da9062-regulator.c
+++ b/drivers/regulator/da9062-regulator.c
@@ -371,7 +371,7 @@ static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev,
 	return regmap_field_write(regl->suspend_sleep, val);
 }
 
-static struct regulator_ops da9062_buck_ops = {
+static const struct regulator_ops da9062_buck_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -389,7 +389,7 @@ static struct regulator_ops da9062_buck_ops = {
 	.set_suspend_mode	= da9062_buck_set_suspend_mode,
 };
 
-static struct regulator_ops da9062_ldo_ops = {
+static const struct regulator_ops da9062_ldo_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index 536e931eb921..ed9e7e96f877 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -427,7 +427,7 @@ static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned mode
 	return regmap_field_write(regl->suspend_sleep, val);
 }
 
-static struct regulator_ops da9063_buck_ops = {
+static const struct regulator_ops da9063_buck_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -445,7 +445,7 @@ static struct regulator_ops da9063_buck_ops = {
 	.set_suspend_mode	= da9063_buck_set_suspend_mode,
 };
 
-static struct regulator_ops da9063_ldo_ops = {
+static const struct regulator_ops da9063_ldo_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c
index b3517830edb6..8b3cc9f0cd64 100644
--- a/drivers/regulator/da9210-regulator.c
+++ b/drivers/regulator/da9210-regulator.c
@@ -46,7 +46,7 @@ static int da9210_set_current_limit(struct regulator_dev *rdev, int min_uA,
 				    int max_uA);
 static int da9210_get_current_limit(struct regulator_dev *rdev);
 
-static struct regulator_ops da9210_buck_ops = {
+static const struct regulator_ops da9210_buck_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index 04ef65b7eb3d..236abf473db5 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -219,7 +219,7 @@ static int da9211_get_current_limit(struct regulator_dev *rdev)
 	return current_limits[data];
 }
 
-static struct regulator_ops da9211_buck_ops = {
+static const struct regulator_ops da9211_buck_ops = {
 	.get_mode = da9211_buck_get_mode,
 	.set_mode = da9211_buck_set_mode,
 	.enable = regulator_enable_regmap,
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 6ec1d400adae..6ad8ab4c578d 100644
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -164,8 +164,11 @@ int devm_regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = devm_regulator_get(dev,
-							   consumers[i].supply);
+		consumers[i].consumer = _devm_regulator_get(dev,
+							    consumers[i].supply,
+							    consumers[i].optional ?
+								OPTIONAL_GET :
+								NORMAL_GET);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",
diff --git a/drivers/regulator/lm363x-regulator.c b/drivers/regulator/lm363x-regulator.c
new file mode 100644
index 000000000000..f53e63301a20
--- /dev/null
+++ b/drivers/regulator/lm363x-regulator.c
@@ -0,0 +1,291 @@
+/*
+ * TI LM363X Regulator Driver
+ *
+ * Copyright 2015 Texas Instruments
+ *
+ * Author: Milo Kim <milo.kim@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/mfd/ti-lmu.h>
+#include <linux/mfd/ti-lmu-register.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/slab.h>
+
+/* LM3631 */
+#define LM3631_BOOST_VSEL_MAX		0x25
+#define LM3631_LDO_VSEL_MAX		0x28
+#define LM3631_CONT_VSEL_MAX		0x03
+#define LM3631_VBOOST_MIN		4500000
+#define LM3631_VCONT_MIN		1800000
+#define LM3631_VLDO_MIN			4000000
+#define ENABLE_TIME_USEC		1000
+
+/* LM3632 */
+#define LM3632_BOOST_VSEL_MAX		0x26
+#define LM3632_LDO_VSEL_MAX		0x29
+#define LM3632_VBOOST_MIN		4500000
+#define LM3632_VLDO_MIN			4000000
+
+/* Common */
+#define LM363X_STEP_50mV		50000
+#define LM363X_STEP_500mV		500000
+
+static const int ldo_cont_enable_time[] = {
+	0, 2000, 5000, 10000, 20000, 50000, 100000, 200000,
+};
+
+static int lm363x_regulator_enable_time(struct regulator_dev *rdev)
+{
+	enum lm363x_regulator_id id = rdev_get_id(rdev);
+	u8 val, addr, mask;
+
+	switch (id) {
+	case LM3631_LDO_CONT:
+		addr = LM3631_REG_ENTIME_VCONT;
+		mask = LM3631_ENTIME_CONT_MASK;
+		break;
+	case LM3631_LDO_OREF:
+		addr = LM3631_REG_ENTIME_VOREF;
+		mask = LM3631_ENTIME_MASK;
+		break;
+	case LM3631_LDO_POS:
+		addr = LM3631_REG_ENTIME_VPOS;
+		mask = LM3631_ENTIME_MASK;
+		break;
+	case LM3631_LDO_NEG:
+		addr = LM3631_REG_ENTIME_VNEG;
+		mask = LM3631_ENTIME_MASK;
+		break;
+	default:
+		return 0;
+	}
+
+	if (regmap_read(rdev->regmap, addr, (unsigned int *)&val))
+		return -EINVAL;
+
+	val = (val & mask) >> LM3631_ENTIME_SHIFT;
+
+	if (id == LM3631_LDO_CONT)
+		return ldo_cont_enable_time[val];
+	else
+		return ENABLE_TIME_USEC * val;
+}
+
+static struct regulator_ops lm363x_boost_voltage_table_ops = {
+	.list_voltage     = regulator_list_voltage_linear,
+	.set_voltage_sel  = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel  = regulator_get_voltage_sel_regmap,
+};
+
+static struct regulator_ops lm363x_regulator_voltage_table_ops = {
+	.list_voltage     = regulator_list_voltage_linear,
+	.set_voltage_sel  = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel  = regulator_get_voltage_sel_regmap,
+	.enable           = regulator_enable_regmap,
+	.disable          = regulator_disable_regmap,
+	.is_enabled       = regulator_is_enabled_regmap,
+	.enable_time      = lm363x_regulator_enable_time,
+};
+
+static const struct regulator_desc lm363x_regulator_desc[] = {
+	/* LM3631 */
+	{
+		.name           = "vboost",
+		.of_match	= "vboost",
+		.id             = LM3631_BOOST,
+		.ops            = &lm363x_boost_voltage_table_ops,
+		.n_voltages     = LM3631_BOOST_VSEL_MAX + 1,
+		.min_uV         = LM3631_VBOOST_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3631_REG_VOUT_BOOST,
+		.vsel_mask      = LM3631_VOUT_MASK,
+	},
+	{
+		.name           = "ldo_cont",
+		.of_match	= "vcont",
+		.id             = LM3631_LDO_CONT,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3631_CONT_VSEL_MAX + 1,
+		.min_uV         = LM3631_VCONT_MIN,
+		.uV_step        = LM363X_STEP_500mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3631_REG_VOUT_CONT,
+		.vsel_mask      = LM3631_VOUT_CONT_MASK,
+		.enable_reg     = LM3631_REG_LDO_CTRL2,
+		.enable_mask    = LM3631_EN_CONT_MASK,
+	},
+	{
+		.name           = "ldo_oref",
+		.of_match	= "voref",
+		.id             = LM3631_LDO_OREF,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3631_LDO_VSEL_MAX + 1,
+		.min_uV         = LM3631_VLDO_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3631_REG_VOUT_OREF,
+		.vsel_mask      = LM3631_VOUT_MASK,
+		.enable_reg     = LM3631_REG_LDO_CTRL1,
+		.enable_mask    = LM3631_EN_OREF_MASK,
+	},
+	{
+		.name           = "ldo_vpos",
+		.of_match	= "vpos",
+		.id             = LM3631_LDO_POS,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3631_LDO_VSEL_MAX + 1,
+		.min_uV         = LM3631_VLDO_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3631_REG_VOUT_POS,
+		.vsel_mask      = LM3631_VOUT_MASK,
+		.enable_reg     = LM3631_REG_LDO_CTRL1,
+		.enable_mask    = LM3631_EN_VPOS_MASK,
+	},
+	{
+		.name           = "ldo_vneg",
+		.of_match	= "vneg",
+		.id             = LM3631_LDO_NEG,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3631_LDO_VSEL_MAX + 1,
+		.min_uV         = LM3631_VLDO_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3631_REG_VOUT_NEG,
+		.vsel_mask      = LM3631_VOUT_MASK,
+		.enable_reg     = LM3631_REG_LDO_CTRL1,
+		.enable_mask    = LM3631_EN_VNEG_MASK,
+	},
+	/* LM3632 */
+	{
+		.name           = "vboost",
+		.of_match	= "vboost",
+		.id             = LM3632_BOOST,
+		.ops            = &lm363x_boost_voltage_table_ops,
+		.n_voltages     = LM3632_BOOST_VSEL_MAX + 1,
+		.min_uV         = LM3632_VBOOST_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3632_REG_VOUT_BOOST,
+		.vsel_mask      = LM3632_VOUT_MASK,
+	},
+	{
+		.name           = "ldo_vpos",
+		.of_match	= "vpos",
+		.id             = LM3632_LDO_POS,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3632_LDO_VSEL_MAX + 1,
+		.min_uV         = LM3632_VLDO_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3632_REG_VOUT_POS,
+		.vsel_mask      = LM3632_VOUT_MASK,
+		.enable_reg     = LM3632_REG_BIAS_CONFIG,
+		.enable_mask    = LM3632_EN_VPOS_MASK,
+	},
+	{
+		.name           = "ldo_vneg",
+		.of_match	= "vneg",
+		.id             = LM3632_LDO_NEG,
+		.ops            = &lm363x_regulator_voltage_table_ops,
+		.n_voltages     = LM3632_LDO_VSEL_MAX + 1,
+		.min_uV         = LM3632_VLDO_MIN,
+		.uV_step        = LM363X_STEP_50mV,
+		.type           = REGULATOR_VOLTAGE,
+		.owner          = THIS_MODULE,
+		.vsel_reg       = LM3632_REG_VOUT_NEG,
+		.vsel_mask      = LM3632_VOUT_MASK,
+		.enable_reg     = LM3632_REG_BIAS_CONFIG,
+		.enable_mask    = LM3632_EN_VNEG_MASK,
+	},
+};
+
+static int lm363x_regulator_of_get_enable_gpio(struct device_node *np, int id)
+{
+	/*
+	 * Check LCM_EN1/2_GPIO is configured.
+	 * Those pins are used for enabling VPOS/VNEG LDOs.
+	 */
+	switch (id) {
+	case LM3632_LDO_POS:
+		return of_get_named_gpio(np, "ti,lcm-en1-gpio", 0);
+	case LM3632_LDO_NEG:
+		return of_get_named_gpio(np, "ti,lcm-en2-gpio", 0);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int lm363x_regulator_probe(struct platform_device *pdev)
+{
+	struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
+	struct regmap *regmap = lmu->regmap;
+	struct regulator_config cfg = { };
+	struct regulator_dev *rdev;
+	struct device *dev = &pdev->dev;
+	int id = pdev->id;
+	int ret, ena_gpio;
+
+	cfg.dev = dev;
+	cfg.regmap = regmap;
+
+	/*
+	 * LM3632 LDOs can be controlled by external pin.
+	 * Register update is required if the pin is used.
+	 */
+	ena_gpio = lm363x_regulator_of_get_enable_gpio(dev->of_node, id);
+	if (gpio_is_valid(ena_gpio)) {
+		cfg.ena_gpio = ena_gpio;
+		cfg.ena_gpio_flags = GPIOF_OUT_INIT_LOW;
+
+		ret = regmap_update_bits(regmap, LM3632_REG_BIAS_CONFIG,
+					 LM3632_EXT_EN_MASK,
+					 LM3632_EXT_EN_MASK);
+		if (ret) {
+			dev_err(dev, "External pin err: %d\n", ret);
+			return ret;
+		}
+	}
+
+	rdev = devm_regulator_register(dev, &lm363x_regulator_desc[id], &cfg);
+	if (IS_ERR(rdev)) {
+		ret = PTR_ERR(rdev);
+		dev_err(dev, "[%d] regulator register err: %d\n", id, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct platform_driver lm363x_regulator_driver = {
+	.probe = lm363x_regulator_probe,
+	.driver = {
+		.name = "lm363x-regulator",
+	},
+};
+
+module_platform_driver(lm363x_regulator_driver);
+
+MODULE_DESCRIPTION("TI LM363X Regulator Driver");
+MODULE_AUTHOR("Milo Kim");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:lm363x-regulator");
diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index e5af07208f9d..19d758486553 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -108,7 +108,6 @@ struct lp872x {
 	struct lp872x_platform_data *pdata;
 	int num_regulators;
 	enum lp872x_dvs_state dvs_pin;
-	int dvs_gpio;
 };
 
 /* LP8720/LP8725 shared voltage table for LDOs */
@@ -520,6 +519,7 @@ static struct regulator_ops lp8725_buck_ops = {
 static struct regulator_desc lp8720_regulator_desc[] = {
 	{
 		.name = "ldo1",
+		.of_match = of_match_ptr("ldo1"),
 		.id = LP8720_ID_LDO1,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -533,6 +533,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 	},
 	{
 		.name = "ldo2",
+		.of_match = of_match_ptr("ldo2"),
 		.id = LP8720_ID_LDO2,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -546,6 +547,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 	},
 	{
 		.name = "ldo3",
+		.of_match = of_match_ptr("ldo3"),
 		.id = LP8720_ID_LDO3,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -559,6 +561,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 	},
 	{
 		.name = "ldo4",
+		.of_match = of_match_ptr("ldo4"),
 		.id = LP8720_ID_LDO4,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp8720_ldo4_vtbl),
@@ -572,6 +575,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 	},
 	{
 		.name = "ldo5",
+		.of_match = of_match_ptr("ldo5"),
 		.id = LP8720_ID_LDO5,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -585,6 +589,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 	},
 	{
 		.name = "buck",
+		.of_match = of_match_ptr("buck"),
 		.id = LP8720_ID_BUCK,
 		.ops = &lp8720_buck_ops,
 		.n_voltages = ARRAY_SIZE(lp8720_buck_vtbl),
@@ -599,6 +604,7 @@ static struct regulator_desc lp8720_regulator_desc[] = {
 static struct regulator_desc lp8725_regulator_desc[] = {
 	{
 		.name = "ldo1",
+		.of_match = of_match_ptr("ldo1"),
 		.id = LP8725_ID_LDO1,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -612,6 +618,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "ldo2",
+		.of_match = of_match_ptr("ldo2"),
 		.id = LP8725_ID_LDO2,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -625,6 +632,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "ldo3",
+		.of_match = of_match_ptr("ldo3"),
 		.id = LP8725_ID_LDO3,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -638,6 +646,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "ldo4",
+		.of_match = of_match_ptr("ldo4"),
 		.id = LP8725_ID_LDO4,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -651,6 +660,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "ldo5",
+		.of_match = of_match_ptr("ldo5"),
 		.id = LP8725_ID_LDO5,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp872x_ldo_vtbl),
@@ -664,6 +674,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "lilo1",
+		.of_match = of_match_ptr("lilo1"),
 		.id = LP8725_ID_LILO1,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl),
@@ -677,6 +688,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "lilo2",
+		.of_match = of_match_ptr("lilo2"),
 		.id = LP8725_ID_LILO2,
 		.ops = &lp872x_ldo_ops,
 		.n_voltages = ARRAY_SIZE(lp8725_lilo_vtbl),
@@ -690,6 +702,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "buck1",
+		.of_match = of_match_ptr("buck1"),
 		.id = LP8725_ID_BUCK1,
 		.ops = &lp8725_buck_ops,
 		.n_voltages = ARRAY_SIZE(lp8725_buck_vtbl),
@@ -701,6 +714,7 @@ static struct regulator_desc lp8725_regulator_desc[] = {
 	},
 	{
 		.name = "buck2",
+		.of_match = of_match_ptr("buck2"),
 		.id = LP8725_ID_BUCK2,
 		.ops = &lp8725_buck_ops,
 		.n_voltages = ARRAY_SIZE(lp8725_buck_vtbl),
@@ -737,7 +751,6 @@ static int lp872x_init_dvs(struct lp872x *lp)
 	}
 
 	lp->dvs_pin = pinstate;
-	lp->dvs_gpio = gpio;
 
 	return 0;
 
diff --git a/drivers/regulator/lp8788-buck.c b/drivers/regulator/lp8788-buck.c
index a97bed90d39b..ec46290b647e 100644
--- a/drivers/regulator/lp8788-buck.c
+++ b/drivers/regulator/lp8788-buck.c
@@ -344,7 +344,7 @@ static unsigned int lp8788_buck_get_mode(struct regulator_dev *rdev)
 				REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
 }
 
-static struct regulator_ops lp8788_buck12_ops = {
+static const struct regulator_ops lp8788_buck12_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.map_voltage = regulator_map_voltage_ascend,
 	.set_voltage_sel = lp8788_buck12_set_voltage_sel,
@@ -357,7 +357,7 @@ static struct regulator_ops lp8788_buck12_ops = {
 	.get_mode = lp8788_buck_get_mode,
 };
 
-static struct regulator_ops lp8788_buck34_ops = {
+static const struct regulator_ops lp8788_buck34_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.map_voltage = regulator_map_voltage_ascend,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
diff --git a/drivers/regulator/lp8788-ldo.c b/drivers/regulator/lp8788-ldo.c
index 9f22d079c8cc..cbfd35873575 100644
--- a/drivers/regulator/lp8788-ldo.c
+++ b/drivers/regulator/lp8788-ldo.c
@@ -170,7 +170,7 @@ static int lp8788_ldo_enable_time(struct regulator_dev *rdev)
 	return ENABLE_TIME_USEC * val;
 }
 
-static struct regulator_ops lp8788_ldo_voltage_table_ops = {
+static const struct regulator_ops lp8788_ldo_voltage_table_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -180,7 +180,7 @@ static struct regulator_ops lp8788_ldo_voltage_table_ops = {
 	.enable_time = lp8788_ldo_enable_time,
 };
 
-static struct regulator_ops lp8788_ldo_voltage_fixed_ops = {
+static const struct regulator_ops lp8788_ldo_voltage_fixed_ops = {
 	.list_voltage = regulator_list_voltage_linear,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
@@ -613,22 +613,20 @@ static struct platform_driver lp8788_aldo_driver = {
 	},
 };
 
+static struct platform_driver * const drivers[] = {
+	&lp8788_dldo_driver,
+	&lp8788_aldo_driver,
+};
+
 static int __init lp8788_ldo_init(void)
 {
-	int ret;
-
-	ret = platform_driver_register(&lp8788_dldo_driver);
-	if (ret)
-		return ret;
-
-	return platform_driver_register(&lp8788_aldo_driver);
+	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 subsys_initcall(lp8788_ldo_init);
 
 static void __exit lp8788_ldo_exit(void)
 {
-	platform_driver_unregister(&lp8788_aldo_driver);
-	platform_driver_unregister(&lp8788_dldo_driver);
+	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
 }
 module_exit(lp8788_ldo_exit);
 
diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c
index 02c4e5feca8e..0495716fd35f 100644
--- a/drivers/regulator/mt6311-regulator.c
+++ b/drivers/regulator/mt6311-regulator.c
@@ -30,6 +30,7 @@ static const struct regmap_config mt6311_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = MT6311_FQMTR_CON4,
+	.cache_type = REGCACHE_RBTREE,
 };
 
 /* Default limits measured in millivolts and milliamps */
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 8217613807d3..6efc7ee8aea3 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -612,6 +612,18 @@ static struct regulator_ops palmas_ops_ldo = {
 	.map_voltage		= regulator_map_voltage_linear,
 };
 
+static struct regulator_ops palmas_ops_ldo9 = {
+	.is_enabled		= palmas_is_enabled_ldo,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear,
+	.map_voltage		= regulator_map_voltage_linear,
+	.set_bypass		= regulator_set_bypass_regmap,
+	.get_bypass		= regulator_get_bypass_regmap,
+};
+
 static struct regulator_ops palmas_ops_ext_control_ldo = {
 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
 	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
@@ -639,6 +651,19 @@ static struct regulator_ops tps65917_ops_ldo = {
 	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
 };
 
+static struct regulator_ops tps65917_ops_ldo_1_2 = {
+	.is_enabled		= palmas_is_enabled_ldo,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear,
+	.map_voltage		= regulator_map_voltage_linear,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.set_bypass		= regulator_set_bypass_regmap,
+	.get_bypass		= regulator_get_bypass_regmap,
+};
+
 static int palmas_regulator_config_external(struct palmas *palmas, int id,
 		struct palmas_reg_init *reg_init)
 {
@@ -915,6 +940,13 @@ static int palmas_ldo_registration(struct palmas_pmic *pmic,
 			if (pdata && pdata->ldo6_vibrator &&
 			    (id == PALMAS_REG_LDO6))
 				desc->enable_time = 2000;
+
+			if (id == PALMAS_REG_LDO9) {
+				desc->ops = &palmas_ops_ldo9;
+				desc->bypass_reg = desc->enable_reg;
+				desc->bypass_mask =
+						PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
+			}
 		} else {
 			if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
 				continue;
@@ -1019,6 +1051,13 @@ static int tps65917_ldo_registration(struct palmas_pmic *pmic,
 			 * It is of the order of ~60mV/uS.
 			 */
 			desc->ramp_delay = 2500;
+			if (id == TPS65917_REG_LDO1 ||
+			    id == TPS65917_REG_LDO2) {
+				desc->ops = &tps65917_ops_ldo_1_2;
+				desc->bypass_reg = desc->enable_reg;
+				desc->bypass_mask =
+						TPS65917_LDO1_CTRL_BYPASS_EN;
+			}
 		} else {
 			desc->n_voltages = 1;
 			if (reg_init && reg_init->roof_floor)
diff --git a/drivers/regulator/pv88060-regulator.c b/drivers/regulator/pv88060-regulator.c
new file mode 100644
index 000000000000..094376c8de4b
--- /dev/null
+++ b/drivers/regulator/pv88060-regulator.c
@@ -0,0 +1,437 @@
+/*
+ * pv88060-regulator.c - Regulator device driver for PV88060
+ * Copyright (C) 2015  Powerventure Semiconductor Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+#include "pv88060-regulator.h"
+
+#define PV88060_MAX_REGULATORS	14
+
+/* PV88060 REGULATOR IDs */
+enum {
+	/* BUCKs */
+	PV88060_ID_BUCK1,
+
+	/* LDOs */
+	PV88060_ID_LDO1,
+	PV88060_ID_LDO2,
+	PV88060_ID_LDO3,
+	PV88060_ID_LDO4,
+	PV88060_ID_LDO5,
+	PV88060_ID_LDO6,
+	PV88060_ID_LDO7,
+
+	/* SWTs */
+	PV88060_ID_SW1,
+	PV88060_ID_SW2,
+	PV88060_ID_SW3,
+	PV88060_ID_SW4,
+	PV88060_ID_SW5,
+	PV88060_ID_SW6,
+};
+
+struct pv88060_regulator {
+	struct regulator_desc desc;
+	/* Current limiting */
+	unsigned	n_current_limits;
+	const int	*current_limits;
+	unsigned int limit_mask;
+	unsigned int conf;		/* buck configuration register */
+};
+
+struct pv88060 {
+	struct device *dev;
+	struct regmap *regmap;
+	struct regulator_dev *rdev[PV88060_MAX_REGULATORS];
+};
+
+static const struct regmap_config pv88060_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+/* Current limits array (in uA) for BUCK1
+ * Entry indexes corresponds to register values.
+ */
+
+static const int pv88060_buck1_limits[] = {
+	1496000, 2393000, 3291000, 4189000
+};
+
+static unsigned int pv88060_buck_get_mode(struct regulator_dev *rdev)
+{
+	struct pv88060_regulator *info = rdev_get_drvdata(rdev);
+	unsigned int data;
+	int ret, mode = 0;
+
+	ret = regmap_read(rdev->regmap, info->conf, &data);
+	if (ret < 0)
+		return ret;
+
+	switch (data & PV88060_BUCK_MODE_MASK) {
+	case PV88060_BUCK_MODE_SYNC:
+		mode = REGULATOR_MODE_FAST;
+		break;
+	case PV88060_BUCK_MODE_AUTO:
+		mode = REGULATOR_MODE_NORMAL;
+		break;
+	case PV88060_BUCK_MODE_SLEEP:
+		mode = REGULATOR_MODE_STANDBY;
+		break;
+	}
+
+	return mode;
+}
+
+static int pv88060_buck_set_mode(struct regulator_dev *rdev,
+					unsigned int mode)
+{
+	struct pv88060_regulator *info = rdev_get_drvdata(rdev);
+	int val = 0;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		val = PV88060_BUCK_MODE_SYNC;
+		break;
+	case REGULATOR_MODE_NORMAL:
+		val = PV88060_BUCK_MODE_AUTO;
+		break;
+	case REGULATOR_MODE_STANDBY:
+		val = PV88060_BUCK_MODE_SLEEP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return regmap_update_bits(rdev->regmap, info->conf,
+					PV88060_BUCK_MODE_MASK, val);
+}
+
+static int pv88060_set_current_limit(struct regulator_dev *rdev, int min,
+				    int max)
+{
+	struct pv88060_regulator *info = rdev_get_drvdata(rdev);
+	int i;
+
+	/* search for closest to maximum */
+	for (i = info->n_current_limits; i >= 0; i--) {
+		if (min <= info->current_limits[i]
+			&& max >= info->current_limits[i]) {
+			return regmap_update_bits(rdev->regmap,
+				info->conf,
+				info->limit_mask,
+				i << PV88060_BUCK_ILIM_SHIFT);
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int pv88060_get_current_limit(struct regulator_dev *rdev)
+{
+	struct pv88060_regulator *info = rdev_get_drvdata(rdev);
+	unsigned int data;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, info->conf, &data);
+	if (ret < 0)
+		return ret;
+
+	data = (data & info->limit_mask) >> PV88060_BUCK_ILIM_SHIFT;
+	return info->current_limits[data];
+}
+
+static struct regulator_ops pv88060_buck_ops = {
+	.get_mode = pv88060_buck_get_mode,
+	.set_mode = pv88060_buck_set_mode,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.set_current_limit = pv88060_set_current_limit,
+	.get_current_limit = pv88060_get_current_limit,
+};
+
+static struct regulator_ops pv88060_ldo_ops = {
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+};
+
+#define PV88060_BUCK(chip, regl_name, min, step, max, limits_array) \
+{\
+	.desc	=	{\
+		.id = chip##_ID_##regl_name,\
+		.name = __stringify(chip##_##regl_name),\
+		.of_match = of_match_ptr(#regl_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.type = REGULATOR_VOLTAGE,\
+		.owner = THIS_MODULE,\
+		.ops = &pv88060_buck_ops,\
+		.min_uV = min,\
+		.uV_step = step,\
+		.n_voltages = ((max) - (min))/(step) + 1,\
+		.enable_reg = PV88060_REG_##regl_name##_CONF0,\
+		.enable_mask = PV88060_BUCK_EN, \
+		.vsel_reg = PV88060_REG_##regl_name##_CONF0,\
+		.vsel_mask = PV88060_VBUCK_MASK,\
+	},\
+	.current_limits = limits_array,\
+	.n_current_limits = ARRAY_SIZE(limits_array),\
+	.limit_mask = PV88060_BUCK_ILIM_MASK, \
+	.conf = PV88060_REG_##regl_name##_CONF1,\
+}
+
+#define PV88060_LDO(chip, regl_name, min, step, max) \
+{\
+	.desc	=	{\
+		.id = chip##_ID_##regl_name,\
+		.name = __stringify(chip##_##regl_name),\
+		.of_match = of_match_ptr(#regl_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.type = REGULATOR_VOLTAGE,\
+		.owner = THIS_MODULE,\
+		.ops = &pv88060_ldo_ops,\
+		.min_uV = min, \
+		.uV_step = step, \
+		.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
+		.enable_reg = PV88060_REG_##regl_name##_CONF, \
+		.enable_mask = PV88060_LDO_EN, \
+		.vsel_reg = PV88060_REG_##regl_name##_CONF, \
+		.vsel_mask = PV88060_VLDO_MASK, \
+	},\
+}
+
+#define PV88060_SW(chip, regl_name, max) \
+{\
+	.desc	=	{\
+		.id = chip##_ID_##regl_name,\
+		.name = __stringify(chip##_##regl_name),\
+		.of_match = of_match_ptr(#regl_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.type = REGULATOR_VOLTAGE,\
+		.owner = THIS_MODULE,\
+		.ops = &pv88060_ldo_ops,\
+		.min_uV = max,\
+		.uV_step = 0,\
+		.n_voltages = 1,\
+		.enable_reg = PV88060_REG_##regl_name##_CONF,\
+		.enable_mask = PV88060_SW_EN,\
+	},\
+}
+
+static const struct pv88060_regulator pv88060_regulator_info[] = {
+	PV88060_BUCK(PV88060, BUCK1, 2800000, 12500, 4387500,
+		pv88060_buck1_limits),
+	PV88060_LDO(PV88060, LDO1, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO2, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO3, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO4, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO5, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO6, 1200000, 50000, 3350000),
+	PV88060_LDO(PV88060, LDO7, 1200000, 50000, 3350000),
+	PV88060_SW(PV88060, SW1, 5000000),
+	PV88060_SW(PV88060, SW2, 5000000),
+	PV88060_SW(PV88060, SW3, 5000000),
+	PV88060_SW(PV88060, SW4, 5000000),
+	PV88060_SW(PV88060, SW5, 5000000),
+	PV88060_SW(PV88060, SW6, 5000000),
+};
+
+static irqreturn_t pv88060_irq_handler(int irq, void *data)
+{
+	struct pv88060 *chip = data;
+	int i, reg_val, err, ret = IRQ_NONE;
+
+	err = regmap_read(chip->regmap, PV88060_REG_EVENT_A, &reg_val);
+	if (err < 0)
+		goto error_i2c;
+
+	if (reg_val & PV88060_E_VDD_FLT) {
+		for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
+			if (chip->rdev[i] != NULL) {
+				regulator_notifier_call_chain(chip->rdev[i],
+					REGULATOR_EVENT_UNDER_VOLTAGE,
+					NULL);
+			}
+		}
+
+		err = regmap_update_bits(chip->regmap, PV88060_REG_EVENT_A,
+			PV88060_E_VDD_FLT, PV88060_E_VDD_FLT);
+		if (err < 0)
+			goto error_i2c;
+
+		ret = IRQ_HANDLED;
+	}
+
+	if (reg_val & PV88060_E_OVER_TEMP) {
+		for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
+			if (chip->rdev[i] != NULL) {
+				regulator_notifier_call_chain(chip->rdev[i],
+					REGULATOR_EVENT_OVER_TEMP,
+					NULL);
+			}
+		}
+
+		err = regmap_update_bits(chip->regmap, PV88060_REG_EVENT_A,
+			PV88060_E_OVER_TEMP, PV88060_E_OVER_TEMP);
+		if (err < 0)
+			goto error_i2c;
+
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+
+error_i2c:
+	dev_err(chip->dev, "I2C error : %d\n", err);
+	return IRQ_NONE;
+}
+
+/*
+ * I2C driver interface functions
+ */
+static int pv88060_i2c_probe(struct i2c_client *i2c,
+		const struct i2c_device_id *id)
+{
+	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
+	struct pv88060 *chip;
+	struct regulator_config config = { };
+	int error, i, ret = 0;
+
+	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88060), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->dev = &i2c->dev;
+	chip->regmap = devm_regmap_init_i2c(i2c, &pv88060_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		error = PTR_ERR(chip->regmap);
+		dev_err(chip->dev, "Failed to allocate register map: %d\n",
+			error);
+		return error;
+	}
+
+	i2c_set_clientdata(i2c, chip);
+
+	if (i2c->irq != 0) {
+		ret = regmap_write(chip->regmap, PV88060_REG_MASK_A, 0xFF);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to mask A reg: %d\n", ret);
+			return ret;
+		}
+
+		ret = regmap_write(chip->regmap, PV88060_REG_MASK_B, 0xFF);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to mask B reg: %d\n", ret);
+			return ret;
+		}
+
+		ret = regmap_write(chip->regmap, PV88060_REG_MASK_C, 0xFF);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to mask C reg: %d\n", ret);
+			return ret;
+		}
+
+		ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
+					pv88060_irq_handler,
+					IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+					"pv88060", chip);
+		if (ret != 0) {
+			dev_err(chip->dev, "Failed to request IRQ: %d\n",
+				i2c->irq);
+			return ret;
+		}
+
+		ret = regmap_update_bits(chip->regmap, PV88060_REG_MASK_A,
+			PV88060_M_VDD_FLT | PV88060_M_OVER_TEMP, 0);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to update mask reg: %d\n", ret);
+			return ret;
+		}
+
+	} else {
+		dev_warn(chip->dev, "No IRQ configured\n");
+	}
+
+	config.dev = chip->dev;
+	config.regmap = chip->regmap;
+
+	for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
+		if (init_data)
+			config.init_data = &init_data[i];
+
+		config.driver_data = (void *)&pv88060_regulator_info[i];
+		chip->rdev[i] = devm_regulator_register(chip->dev,
+			&pv88060_regulator_info[i].desc, &config);
+		if (IS_ERR(chip->rdev[i])) {
+			dev_err(chip->dev,
+				"Failed to register PV88060 regulator\n");
+			return PTR_ERR(chip->rdev[i]);
+		}
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id pv88060_i2c_id[] = {
+	{"pv88060", 0},
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, pv88060_i2c_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id pv88060_dt_ids[] = {
+	{ .compatible = "pvs,pv88060", .data = &pv88060_i2c_id[0] },
+	{},
+};
+MODULE_DEVICE_TABLE(of, pv88060_dt_ids);
+#endif
+
+static struct i2c_driver pv88060_regulator_driver = {
+	.driver = {
+		.name = "pv88060",
+		.of_match_table = of_match_ptr(pv88060_dt_ids),
+	},
+	.probe = pv88060_i2c_probe,
+	.id_table = pv88060_i2c_id,
+};
+
+module_i2c_driver(pv88060_regulator_driver);
+
+MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
+MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88060");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/pv88060-regulator.h b/drivers/regulator/pv88060-regulator.h
new file mode 100644
index 000000000000..02ca9203a172
--- /dev/null
+++ b/drivers/regulator/pv88060-regulator.h
@@ -0,0 +1,69 @@
+/*
+ * pv88060-regulator.h - Regulator definitions for PV88060
+ * Copyright (C) 2015 Powerventure Semiconductor Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __PV88060_REGISTERS_H__
+#define __PV88060_REGISTERS_H__
+
+/* System Control and Event Registers */
+#define	PV88060_REG_EVENT_A			0x04
+#define	PV88060_REG_MASK_A			0x08
+#define	PV88060_REG_MASK_B			0x09
+#define	PV88060_REG_MASK_C			0x0A
+
+/* Regulator Registers */
+#define	PV88060_REG_BUCK1_CONF0			0x1B
+#define	PV88060_REG_BUCK1_CONF1			0x1C
+#define	PV88060_REG_LDO1_CONF			0x1D
+#define	PV88060_REG_LDO2_CONF			0x1E
+#define	PV88060_REG_LDO3_CONF			0x1F
+#define	PV88060_REG_LDO4_CONF			0x20
+#define	PV88060_REG_LDO5_CONF			0x21
+#define	PV88060_REG_LDO6_CONF			0x22
+#define	PV88060_REG_LDO7_CONF			0x23
+
+#define	PV88060_REG_SW1_CONF			0x3B
+#define	PV88060_REG_SW2_CONF			0x3C
+#define	PV88060_REG_SW3_CONF			0x3D
+#define	PV88060_REG_SW4_CONF			0x3E
+#define	PV88060_REG_SW5_CONF			0x3F
+#define	PV88060_REG_SW6_CONF			0x40
+
+/* PV88060_REG_EVENT_A (addr=0x04) */
+#define	PV88060_E_VDD_FLT			0x01
+#define	PV88060_E_OVER_TEMP			0x02
+
+/* PV88060_REG_MASK_A (addr=0x08) */
+#define	PV88060_M_VDD_FLT			0x01
+#define	PV88060_M_OVER_TEMP			0x02
+
+/* PV88060_REG_BUCK1_CONF0 (addr=0x1B) */
+#define	PV88060_BUCK_EN			0x80
+#define PV88060_VBUCK_MASK			0x7F
+/* PV88060_REG_LDO1/2/3/4/5/6/7_CONT */
+#define	PV88060_LDO_EN			0x40
+#define PV88060_VLDO_MASK			0x3F
+/* PV88060_REG_SW1/2/3/4/5_CONF */
+#define	PV88060_SW_EN			0x80
+
+/* PV88060_REG_BUCK1_CONF1 (addr=0x1C) */
+#define	PV88060_BUCK_ILIM_SHIFT			2
+#define	PV88060_BUCK_ILIM_MASK			0x0C
+#define	PV88060_BUCK_MODE_SHIFT			0
+#define	PV88060_BUCK_MODE_MASK			0x03
+#define	PV88060_BUCK_MODE_SLEEP			0x00
+#define	PV88060_BUCK_MODE_AUTO			0x01
+#define	PV88060_BUCK_MODE_SYNC			0x02
+
+#endif	/* __PV88060_REGISTERS_H__ */
diff --git a/drivers/regulator/pv88090-regulator.c b/drivers/regulator/pv88090-regulator.c
new file mode 100644
index 000000000000..ac15f31b5fe0
--- /dev/null
+++ b/drivers/regulator/pv88090-regulator.c
@@ -0,0 +1,458 @@
+/*
+ * pv88090-regulator.c - Regulator device driver for PV88090
+ * Copyright (C) 2015  Powerventure Semiconductor Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/proc_fs.h>
+#include <linux/uaccess.h>
+#include "pv88090-regulator.h"
+
+#define PV88090_MAX_REGULATORS	5
+
+/* PV88090 REGULATOR IDs */
+enum {
+	/* BUCKs */
+	PV88090_ID_BUCK1,
+	PV88090_ID_BUCK2,
+	PV88090_ID_BUCK3,
+
+	/* LDOs */
+	PV88090_ID_LDO1,
+	PV88090_ID_LDO2,
+};
+
+struct pv88090_regulator {
+	struct regulator_desc desc;
+	/* Current limiting */
+	unsigned	n_current_limits;
+	const int	*current_limits;
+	unsigned int limit_mask;
+	unsigned int conf;
+	unsigned int conf2;
+};
+
+struct pv88090 {
+	struct device *dev;
+	struct regmap *regmap;
+	struct regulator_dev *rdev[PV88090_MAX_REGULATORS];
+};
+
+struct pv88090_buck_voltage {
+	int min_uV;
+	int max_uV;
+	int uV_step;
+};
+
+static const struct regmap_config pv88090_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
+ *  Entry indexes corresponds to register values.
+ */
+
+static const int pv88090_buck1_limits[] = {
+	 220000,  440000,  660000,  880000, 1100000, 1320000, 1540000, 1760000,
+	1980000, 2200000, 2420000, 2640000, 2860000, 3080000, 3300000, 3520000,
+	3740000, 3960000, 4180000, 4400000, 4620000, 4840000, 5060000, 5280000,
+	5500000, 5720000, 5940000, 6160000, 6380000, 6600000, 6820000, 7040000
+};
+
+static const int pv88090_buck23_limits[] = {
+	1496000, 2393000, 3291000, 4189000
+};
+
+static const struct pv88090_buck_voltage pv88090_buck_vol[3] = {
+	{
+		.min_uV = 600000,
+		.max_uV = 1393750,
+		.uV_step = 6250,
+	},
+
+	{
+		.min_uV = 1400000,
+		.max_uV = 2193750,
+		.uV_step = 6250,
+	},
+	{
+		.min_uV = 1250000,
+		.max_uV = 2837500,
+		.uV_step = 12500,
+	},
+};
+
+static unsigned int pv88090_buck_get_mode(struct regulator_dev *rdev)
+{
+	struct pv88090_regulator *info = rdev_get_drvdata(rdev);
+	unsigned int data;
+	int ret, mode = 0;
+
+	ret = regmap_read(rdev->regmap, info->conf, &data);
+	if (ret < 0)
+		return ret;
+
+	switch (data & PV88090_BUCK1_MODE_MASK) {
+	case PV88090_BUCK_MODE_SYNC:
+		mode = REGULATOR_MODE_FAST;
+		break;
+	case PV88090_BUCK_MODE_AUTO:
+		mode = REGULATOR_MODE_NORMAL;
+		break;
+	case PV88090_BUCK_MODE_SLEEP:
+		mode = REGULATOR_MODE_STANDBY;
+		break;
+	}
+
+	return mode;
+}
+
+static int pv88090_buck_set_mode(struct regulator_dev *rdev,
+					unsigned int mode)
+{
+	struct pv88090_regulator *info = rdev_get_drvdata(rdev);
+	int val = 0;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		val = PV88090_BUCK_MODE_SYNC;
+		break;
+	case REGULATOR_MODE_NORMAL:
+		val = PV88090_BUCK_MODE_AUTO;
+		break;
+	case REGULATOR_MODE_STANDBY:
+		val = PV88090_BUCK_MODE_SLEEP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return regmap_update_bits(rdev->regmap, info->conf,
+					PV88090_BUCK1_MODE_MASK, val);
+}
+
+static int pv88090_set_current_limit(struct regulator_dev *rdev, int min,
+				    int max)
+{
+	struct pv88090_regulator *info = rdev_get_drvdata(rdev);
+	int i;
+
+	/* search for closest to maximum */
+	for (i = info->n_current_limits; i >= 0; i--) {
+		if (min <= info->current_limits[i]
+			&& max >= info->current_limits[i]) {
+			return regmap_update_bits(rdev->regmap,
+				info->conf,
+				info->limit_mask,
+				i << PV88090_BUCK1_ILIM_SHIFT);
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int pv88090_get_current_limit(struct regulator_dev *rdev)
+{
+	struct pv88090_regulator *info = rdev_get_drvdata(rdev);
+	unsigned int data;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, info->conf, &data);
+	if (ret < 0)
+		return ret;
+
+	data = (data & info->limit_mask) >> PV88090_BUCK1_ILIM_SHIFT;
+	return info->current_limits[data];
+}
+
+static struct regulator_ops pv88090_buck_ops = {
+	.get_mode = pv88090_buck_get_mode,
+	.set_mode = pv88090_buck_set_mode,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.set_current_limit = pv88090_set_current_limit,
+	.get_current_limit = pv88090_get_current_limit,
+};
+
+static struct regulator_ops pv88090_ldo_ops = {
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+};
+
+#define PV88090_BUCK(chip, regl_name, min, step, max, limits_array) \
+{\
+	.desc	=	{\
+		.id = chip##_ID_##regl_name,\
+		.name = __stringify(chip##_##regl_name),\
+		.of_match = of_match_ptr(#regl_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.type = REGULATOR_VOLTAGE,\
+		.owner = THIS_MODULE,\
+		.ops = &pv88090_buck_ops,\
+		.min_uV = min, \
+		.uV_step = step, \
+		.n_voltages = ((max) - (min))/(step) + 1, \
+		.enable_reg = PV88090_REG_##regl_name##_CONF0, \
+		.enable_mask = PV88090_##regl_name##_EN, \
+		.vsel_reg = PV88090_REG_##regl_name##_CONF0, \
+		.vsel_mask = PV88090_V##regl_name##_MASK, \
+	},\
+	.current_limits = limits_array, \
+	.n_current_limits = ARRAY_SIZE(limits_array), \
+	.limit_mask = PV88090_##regl_name##_ILIM_MASK, \
+	.conf = PV88090_REG_##regl_name##_CONF1, \
+	.conf2 = PV88090_REG_##regl_name##_CONF2, \
+}
+
+#define PV88090_LDO(chip, regl_name, min, step, max) \
+{\
+	.desc	=	{\
+		.id = chip##_ID_##regl_name,\
+		.name = __stringify(chip##_##regl_name),\
+		.of_match = of_match_ptr(#regl_name),\
+		.regulators_node = of_match_ptr("regulators"),\
+		.type = REGULATOR_VOLTAGE,\
+		.owner = THIS_MODULE,\
+		.ops = &pv88090_ldo_ops,\
+		.min_uV = min, \
+		.uV_step = step, \
+		.n_voltages = ((max) - (min))/(step) + 1, \
+		.enable_reg = PV88090_REG_##regl_name##_CONT, \
+		.enable_mask = PV88090_##regl_name##_EN, \
+		.vsel_reg = PV88090_REG_##regl_name##_CONT, \
+		.vsel_mask = PV88090_V##regl_name##_MASK, \
+	},\
+}
+
+static struct pv88090_regulator pv88090_regulator_info[] = {
+	PV88090_BUCK(PV88090, BUCK1, 600000, 6250, 1393750,
+		pv88090_buck1_limits),
+	PV88090_BUCK(PV88090, BUCK2, 600000, 6250, 1393750,
+		pv88090_buck23_limits),
+	PV88090_BUCK(PV88090, BUCK3, 600000, 6250, 1393750,
+		pv88090_buck23_limits),
+	PV88090_LDO(PV88090, LDO1, 1200000, 50000, 4350000),
+	PV88090_LDO(PV88090, LDO2,  650000, 25000, 2225000),
+};
+
+static irqreturn_t pv88090_irq_handler(int irq, void *data)
+{
+	struct pv88090 *chip = data;
+	int i, reg_val, err, ret = IRQ_NONE;
+
+	err = regmap_read(chip->regmap, PV88090_REG_EVENT_A, &reg_val);
+	if (err < 0)
+		goto error_i2c;
+
+	if (reg_val & PV88090_E_VDD_FLT) {
+		for (i = 0; i < PV88090_MAX_REGULATORS; i++) {
+			if (chip->rdev[i] != NULL) {
+				regulator_notifier_call_chain(chip->rdev[i],
+					REGULATOR_EVENT_UNDER_VOLTAGE,
+					NULL);
+			}
+		}
+
+		err = regmap_update_bits(chip->regmap, PV88090_REG_EVENT_A,
+			PV88090_E_VDD_FLT, PV88090_E_VDD_FLT);
+		if (err < 0)
+			goto error_i2c;
+
+		ret = IRQ_HANDLED;
+	}
+
+	if (reg_val & PV88090_E_OVER_TEMP) {
+		for (i = 0; i < PV88090_MAX_REGULATORS; i++) {
+			if (chip->rdev[i] != NULL) {
+				regulator_notifier_call_chain(chip->rdev[i],
+					REGULATOR_EVENT_OVER_TEMP,
+					NULL);
+			}
+		}
+
+		err = regmap_update_bits(chip->regmap, PV88090_REG_EVENT_A,
+			PV88090_E_OVER_TEMP, PV88090_E_OVER_TEMP);
+		if (err < 0)
+			goto error_i2c;
+
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+
+error_i2c:
+	dev_err(chip->dev, "I2C error : %d\n", err);
+	return IRQ_NONE;
+}
+
+/*
+ * I2C driver interface functions
+ */
+static int pv88090_i2c_probe(struct i2c_client *i2c,
+		const struct i2c_device_id *id)
+{
+	struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
+	struct pv88090 *chip;
+	struct regulator_config config = { };
+	int error, i, ret = 0;
+	unsigned int conf2, range, index;
+
+	chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88090), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->dev = &i2c->dev;
+	chip->regmap = devm_regmap_init_i2c(i2c, &pv88090_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		error = PTR_ERR(chip->regmap);
+		dev_err(chip->dev, "Failed to allocate register map: %d\n",
+			error);
+		return error;
+	}
+
+	i2c_set_clientdata(i2c, chip);
+
+	if (i2c->irq != 0) {
+		ret = regmap_write(chip->regmap, PV88090_REG_MASK_A, 0xFF);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to mask A reg: %d\n", ret);
+			return ret;
+		}
+
+		ret = regmap_write(chip->regmap, PV88090_REG_MASK_B, 0xFF);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to mask B reg: %d\n", ret);
+			return ret;
+		}
+
+		ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
+					pv88090_irq_handler,
+					IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+					"pv88090", chip);
+		if (ret != 0) {
+			dev_err(chip->dev, "Failed to request IRQ: %d\n",
+				i2c->irq);
+			return ret;
+		}
+
+		ret = regmap_update_bits(chip->regmap, PV88090_REG_MASK_A,
+			PV88090_M_VDD_FLT | PV88090_M_OVER_TEMP, 0);
+		if (ret < 0) {
+			dev_err(chip->dev,
+				"Failed to update mask reg: %d\n", ret);
+			return ret;
+		}
+
+	} else {
+		dev_warn(chip->dev, "No IRQ configured\n");
+	}
+
+	config.dev = chip->dev;
+	config.regmap = chip->regmap;
+
+	for (i = 0; i < PV88090_MAX_REGULATORS; i++) {
+		if (init_data)
+			config.init_data = &init_data[i];
+
+		if (i == PV88090_ID_BUCK2 || i == PV88090_ID_BUCK3) {
+			ret = regmap_read(chip->regmap,
+				pv88090_regulator_info[i].conf2, &conf2);
+			if (ret < 0)
+				return ret;
+
+			conf2 = (conf2 >> PV88090_BUCK_VDAC_RANGE_SHIFT) &
+				PV88090_BUCK_VDAC_RANGE_MASK;
+
+			ret = regmap_read(chip->regmap,
+				PV88090_REG_BUCK_FOLD_RANGE, &range);
+			if (ret < 0)
+				return ret;
+
+			range = (range >>
+				 (PV88080_BUCK_VRANGE_GAIN_SHIFT + i - 1)) &
+				PV88080_BUCK_VRANGE_GAIN_MASK;
+			index = ((range << 1) | conf2);
+
+			pv88090_regulator_info[i].desc.min_uV
+				= pv88090_buck_vol[index].min_uV;
+			pv88090_regulator_info[i].desc.uV_step
+				= pv88090_buck_vol[index].uV_step;
+			pv88090_regulator_info[i].desc.n_voltages
+				= ((pv88090_buck_vol[index].max_uV)
+				- (pv88090_buck_vol[index].min_uV))
+				/(pv88090_buck_vol[index].uV_step) + 1;
+		}
+
+		config.driver_data = (void *)&pv88090_regulator_info[i];
+		chip->rdev[i] = devm_regulator_register(chip->dev,
+			&pv88090_regulator_info[i].desc, &config);
+		if (IS_ERR(chip->rdev[i])) {
+			dev_err(chip->dev,
+				"Failed to register PV88090 regulator\n");
+			return PTR_ERR(chip->rdev[i]);
+		}
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id pv88090_i2c_id[] = {
+	{"pv88090", 0},
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, pv88090_i2c_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id pv88090_dt_ids[] = {
+	{ .compatible = "pvs,pv88090", .data = &pv88090_i2c_id[0] },
+	{},
+};
+MODULE_DEVICE_TABLE(of, pv88090_dt_ids);
+#endif
+
+static struct i2c_driver pv88090_regulator_driver = {
+	.driver = {
+		.name = "pv88090",
+		.of_match_table = of_match_ptr(pv88090_dt_ids),
+	},
+	.probe = pv88090_i2c_probe,
+	.id_table = pv88090_i2c_id,
+};
+
+module_i2c_driver(pv88090_regulator_driver);
+
+MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
+MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88090");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/pv88090-regulator.h b/drivers/regulator/pv88090-regulator.h
new file mode 100644
index 000000000000..d7aca8d8266d
--- /dev/null
+++ b/drivers/regulator/pv88090-regulator.h
@@ -0,0 +1,98 @@
+/*
+ * pv88090-regulator.h - Regulator definitions for PV88090
+ * Copyright (C) 2015 Powerventure Semiconductor Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __PV88090_REGISTERS_H__
+#define __PV88090_REGISTERS_H__
+
+/* System Control and Event Registers */
+#define	PV88090_REG_EVENT_A			0x03
+#define	PV88090_REG_MASK_A			0x06
+#define	PV88090_REG_MASK_B			0x07
+
+/* Regulator Registers */
+#define	PV88090_REG_BUCK1_CONF0			0x18
+#define	PV88090_REG_BUCK1_CONF1			0x19
+#define	PV88090_REG_BUCK1_CONF2			0x1a
+#define	PV88090_REG_BUCK2_CONF0			0x1b
+#define	PV88090_REG_BUCK2_CONF1			0x1c
+#define	PV88090_REG_BUCK2_CONF2			0x58
+#define	PV88090_REG_BUCK3_CONF0			0x1d
+#define	PV88090_REG_BUCK3_CONF1			0x1e
+#define	PV88090_REG_BUCK3_CONF2			0x5c
+
+#define	PV88090_REG_LDO1_CONT			0x1f
+#define	PV88090_REG_LDO2_CONT			0x20
+#define	PV88090_REG_LDO3_CONT			0x21
+#define	PV88090_REG_BUCK_FOLD_RANGE			0x61
+
+/* PV88090_REG_EVENT_A (addr=0x03) */
+#define	PV88090_E_VDD_FLT				0x01
+#define	PV88090_E_OVER_TEMP			0x02
+
+/* PV88090_REG_MASK_A (addr=0x06) */
+#define	PV88090_M_VDD_FLT				0x01
+#define	PV88090_M_OVER_TEMP			0x02
+
+/* PV88090_REG_BUCK1_CONF0 (addr=0x18) */
+#define	PV88090_BUCK1_EN				0x80
+#define PV88090_VBUCK1_MASK			0x7F
+/* PV88090_REG_BUCK2_CONF0 (addr=0x1b) */
+#define	PV88090_BUCK2_EN				0x80
+#define PV88090_VBUCK2_MASK			0x7F
+/* PV88090_REG_BUCK3_CONF0 (addr=0x1d) */
+#define	PV88090_BUCK3_EN				0x80
+#define PV88090_VBUCK3_MASK			0x7F
+/* PV88090_REG_LDO1_CONT (addr=0x1f) */
+#define	PV88090_LDO1_EN				0x40
+#define PV88090_VLDO1_MASK			0x3F
+/* PV88090_REG_LDO2_CONT (addr=0x20) */
+#define	PV88090_LDO2_EN				0x40
+#define PV88090_VLDO2_MASK			0x3F
+
+/* PV88090_REG_BUCK1_CONF1 (addr=0x19) */
+#define PV88090_BUCK1_ILIM_SHIFT			2
+#define PV88090_BUCK1_ILIM_MASK			0x7C
+#define PV88090_BUCK1_MODE_MASK			0x03
+
+/* PV88090_REG_BUCK2_CONF1 (addr=0x1c) */
+#define PV88090_BUCK2_ILIM_SHIFT			2
+#define PV88090_BUCK2_ILIM_MASK			0x0C
+#define PV88090_BUCK2_MODE_MASK			0x03
+
+/* PV88090_REG_BUCK3_CONF1 (addr=0x1e) */
+#define PV88090_BUCK3_ILIM_SHIFT			2
+#define PV88090_BUCK3_ILIM_MASK			0x0C
+#define PV88090_BUCK3_MODE_MASK			0x03
+
+#define	PV88090_BUCK_MODE_SLEEP			0x00
+#define	PV88090_BUCK_MODE_AUTO			0x01
+#define	PV88090_BUCK_MODE_SYNC			0x02
+
+/* PV88090_REG_BUCK2_CONF2 (addr=0x58) */
+/* PV88090_REG_BUCK3_CONF2 (addr=0x5c) */
+#define PV88090_BUCK_VDAC_RANGE_SHIFT			7
+#define PV88090_BUCK_VDAC_RANGE_MASK			0x01
+
+#define PV88090_BUCK_VDAC_RANGE_1			0x00
+#define PV88090_BUCK_VDAC_RANGE_2			0x01
+
+/* PV88090_REG_BUCK_FOLD_RANGE (addr=0x61) */
+#define PV88080_BUCK_VRANGE_GAIN_SHIFT			3
+#define PV88080_BUCK_VRANGE_GAIN_MASK			0x01
+
+#define PV88080_BUCK_VRANGE_GAIN_1			0x00
+#define PV88080_BUCK_VRANGE_GAIN_2			0x01
+
+#endif	/* __PV88090_REGISTERS_H__ */
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index 6fa0c7d13290..56a17ec5b5ef 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -153,6 +153,49 @@ static const struct regulator_ops rpm_switch_ops = {
 	.is_enabled = rpm_reg_is_enabled,
 };
 
+static const struct regulator_desc pma8084_hfsmps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(375000,  0,  95, 12500),
+		REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 159,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pma8084_ftsmps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(350000,  0, 184, 5000),
+		REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 340,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pma8084_pldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(750000,  0,  30, 25000),
+		REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 100,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pma8084_nldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 64,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pma8084_switch = {
+	.ops = &rpm_switch_ops,
+};
+
 static const struct regulator_desc pm8x41_hfsmps = {
 	.linear_ranges = (struct regulator_linear_range[]) {
 		REGULATOR_LINEAR_RANGE( 375000,  0,  95, 12500),
@@ -211,6 +254,43 @@ static const struct regulator_desc pm8941_switch = {
 	.ops = &rpm_switch_ops,
 };
 
+static const struct regulator_desc pm8916_pldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(750000, 0, 208, 12500),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 209,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8916_nldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(375000, 0, 93, 12500),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 94,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8916_buck_lvo_smps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500),
+		REGULATOR_LINEAR_RANGE(750000, 96, 127, 25000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 128,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8916_buck_hvo_smps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(1550000, 0, 31, 25000),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 32,
+	.ops = &rpm_smps_ldo_ops,
+};
+
 struct rpm_regulator_data {
 	const char *name;
 	u32 type;
@@ -231,6 +311,32 @@ static const struct rpm_regulator_data rpm_pm8841_regulators[] = {
 	{}
 };
 
+static const struct rpm_regulator_data rpm_pm8916_regulators[] = {
+	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pm8916_buck_lvo_smps, "vdd_s1" },
+	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8916_buck_lvo_smps, "vdd_s2" },
+	{ "s3", QCOM_SMD_RPM_SMPA, 3, &pm8916_buck_lvo_smps, "vdd_s3" },
+	{ "s4", QCOM_SMD_RPM_SMPA, 4, &pm8916_buck_hvo_smps, "vdd_s4" },
+	{ "l1", QCOM_SMD_RPM_LDOA, 1, &pm8916_nldo, "vdd_l1_l2_l3" },
+	{ "l2", QCOM_SMD_RPM_LDOA, 2, &pm8916_nldo, "vdd_l1_l2_l3" },
+	{ "l3", QCOM_SMD_RPM_LDOA, 3, &pm8916_nldo, "vdd_l1_l2_l3" },
+	{ "l4", QCOM_SMD_RPM_LDOA, 4, &pm8916_pldo, "vdd_l4_l5_l6" },
+	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pm8916_pldo, "vdd_l4_l5_l6" },
+	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pm8916_pldo, "vdd_l4_l5_l6" },
+	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pm8916_pldo, "vdd_l7" },
+	{ "l8", QCOM_SMD_RPM_LDOA, 8, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18" },
+	{ "l9", QCOM_SMD_RPM_LDOA, 9, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18" },
+	{ "l10", QCOM_SMD_RPM_LDOA, 10, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{ "l18", QCOM_SMD_RPM_LDOA, 18, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"},
+	{}
+};
+
 static const struct rpm_regulator_data rpm_pm8941_regulators[] = {
 	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pm8x41_hfsmps, "vdd_s1" },
 	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8x41_hfsmps, "vdd_s2" },
@@ -272,9 +378,62 @@ static const struct rpm_regulator_data rpm_pm8941_regulators[] = {
 	{}
 };
 
+static const struct rpm_regulator_data rpm_pma8084_regulators[] = {
+	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pma8084_ftsmps, "vdd_s1" },
+	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pma8084_ftsmps, "vdd_s2" },
+	{ "s3", QCOM_SMD_RPM_SMPA, 3, &pma8084_hfsmps, "vdd_s3" },
+	{ "s4", QCOM_SMD_RPM_SMPA, 4, &pma8084_hfsmps, "vdd_s4" },
+	{ "s5", QCOM_SMD_RPM_SMPA, 5, &pma8084_hfsmps, "vdd_s5" },
+	{ "s6", QCOM_SMD_RPM_SMPA, 6, &pma8084_ftsmps, "vdd_s6" },
+	{ "s7", QCOM_SMD_RPM_SMPA, 7, &pma8084_ftsmps, "vdd_s7" },
+	{ "s8", QCOM_SMD_RPM_SMPA, 8, &pma8084_ftsmps, "vdd_s8" },
+	{ "s9", QCOM_SMD_RPM_SMPA, 9, &pma8084_ftsmps, "vdd_s9" },
+	{ "s10", QCOM_SMD_RPM_SMPA, 10, &pma8084_ftsmps, "vdd_s10" },
+	{ "s11", QCOM_SMD_RPM_SMPA, 11, &pma8084_ftsmps, "vdd_s11" },
+	{ "s12", QCOM_SMD_RPM_SMPA, 12, &pma8084_ftsmps, "vdd_s12" },
+
+	{ "l1", QCOM_SMD_RPM_LDOA, 1, &pma8084_nldo, "vdd_l1_l11" },
+	{ "l2", QCOM_SMD_RPM_LDOA, 2, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l3", QCOM_SMD_RPM_LDOA, 3, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l4", QCOM_SMD_RPM_LDOA, 4, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pma8084_pldo, "vdd_l5_l7" },
+	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pma8084_pldo, "vdd_l5_l7" },
+	{ "l8", QCOM_SMD_RPM_LDOA, 8, &pma8084_pldo, "vdd_l8" },
+	{ "l9", QCOM_SMD_RPM_LDOA, 9, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l10", QCOM_SMD_RPM_LDOA, 10, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pma8084_nldo, "vdd_l1_l11" },
+	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pma8084_pldo, "vdd_l16_l25" },
+	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pma8084_pldo, "vdd_l17" },
+	{ "l18", QCOM_SMD_RPM_LDOA, 18, &pma8084_pldo, "vdd_l18" },
+	{ "l19", QCOM_SMD_RPM_LDOA, 19, &pma8084_pldo, "vdd_l19" },
+	{ "l20", QCOM_SMD_RPM_LDOA, 20, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l21", QCOM_SMD_RPM_LDOA, 21, &pma8084_pldo, "vdd_l21" },
+	{ "l22", QCOM_SMD_RPM_LDOA, 22, &pma8084_pldo, "vdd_l22" },
+	{ "l23", QCOM_SMD_RPM_LDOA, 23, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l24", QCOM_SMD_RPM_LDOA, 24, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" },
+	{ "l25", QCOM_SMD_RPM_LDOA, 25, &pma8084_pldo, "vdd_l16_l25" },
+	{ "l26", QCOM_SMD_RPM_LDOA, 26, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" },
+	{ "l27", QCOM_SMD_RPM_LDOA, 27, &pma8084_nldo, "vdd_l2_l3_l4_l27" },
+
+	{ "lvs1", QCOM_SMD_RPM_VSA, 1, &pma8084_switch },
+	{ "lvs2", QCOM_SMD_RPM_VSA, 2, &pma8084_switch },
+	{ "lvs3", QCOM_SMD_RPM_VSA, 3, &pma8084_switch },
+	{ "lvs4", QCOM_SMD_RPM_VSA, 4, &pma8084_switch },
+	{ "5vs1", QCOM_SMD_RPM_VSA, 5, &pma8084_switch },
+
+	{}
+};
+
 static const struct of_device_id rpm_of_match[] = {
 	{ .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators },
+	{ .compatible = "qcom,rpm-pm8916-regulators", .data = &rpm_pm8916_regulators },
 	{ .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators },
+	{ .compatible = "qcom,rpm-pma8084-regulators", .data = &rpm_pma8084_regulators },
 	{}
 };
 MODULE_DEVICE_TABLE(of, rpm_of_match);
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 72fc3c32db49..3242ffc0cb25 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -32,6 +32,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 #include <linux/mfd/samsung/s2mps13.h>
 #include <linux/mfd/samsung/s2mps14.h>
+#include <linux/mfd/samsung/s2mps15.h>
 #include <linux/mfd/samsung/s2mpu02.h>
 
 /* The highest number of possible regulators for supported devices. */
@@ -661,6 +662,133 @@ static const struct regulator_desc s2mps14_regulators[] = {
 				    S2MPS14_BUCK1235_START_SEL),
 };
 
+static struct regulator_ops s2mps15_reg_ldo_ops = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+};
+
+static struct regulator_ops s2mps15_reg_buck_ops = {
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+};
+
+#define regulator_desc_s2mps15_ldo(num, range) {	\
+	.name		= "LDO"#num,			\
+	.id		= S2MPS15_LDO##num,		\
+	.ops		= &s2mps15_reg_ldo_ops,		\
+	.type		= REGULATOR_VOLTAGE,		\
+	.owner		= THIS_MODULE,			\
+	.linear_ranges	= range,			\
+	.n_linear_ranges = ARRAY_SIZE(range),		\
+	.n_voltages	= S2MPS15_LDO_N_VOLTAGES,	\
+	.vsel_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
+	.vsel_mask	= S2MPS15_LDO_VSEL_MASK,	\
+	.enable_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
+	.enable_mask	= S2MPS15_ENABLE_MASK		\
+}
+
+#define regulator_desc_s2mps15_buck(num, range) {			\
+	.name		= "BUCK"#num,					\
+	.id		= S2MPS15_BUCK##num,				\
+	.ops		= &s2mps15_reg_buck_ops,			\
+	.type		= REGULATOR_VOLTAGE,				\
+	.owner		= THIS_MODULE,					\
+	.linear_ranges	= range,					\
+	.n_linear_ranges = ARRAY_SIZE(range),				\
+	.ramp_delay	= 12500,					\
+	.n_voltages	= S2MPS15_BUCK_N_VOLTAGES,			\
+	.vsel_reg	= S2MPS15_REG_B1CTRL2 + ((num - 1) * 2),	\
+	.vsel_mask	= S2MPS15_BUCK_VSEL_MASK,			\
+	.enable_reg	= S2MPS15_REG_B1CTRL1 + ((num - 1) * 2),	\
+	.enable_mask	= S2MPS15_ENABLE_MASK				\
+}
+
+/* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges1[] = {
+	REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
+};
+
+/* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges2[] = {
+	REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
+};
+
+/* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges3[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
+};
+
+/* voltage range for s2mps15 LDO 7, 8, 9 and 10 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges4[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0xc, 0x18, 25000),
+};
+
+/* voltage range for s2mps15 LDO 1 */
+static const struct regulator_linear_range s2mps15_ldo_voltage_ranges5[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
+};
+
+/* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */
+static const struct regulator_linear_range s2mps15_buck_voltage_ranges1[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x20, 0xb0, 6250),
+};
+
+/* voltage range for s2mps15 BUCK 8, 9 and 10 */
+static const struct regulator_linear_range s2mps15_buck_voltage_ranges2[] = {
+	REGULATOR_LINEAR_RANGE(1000000, 0x20, 0xc0, 12500),
+};
+
+static const struct regulator_desc s2mps15_regulators[] = {
+	regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
+	regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
+	regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
+	regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
+	regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
+	regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
+	regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
+	regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
+	regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
+};
+
 static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
 		struct regulator_dev *rdev)
 {
@@ -974,6 +1102,10 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 		regulators = s2mps14_regulators;
 		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num);
 		break;
+	case S2MPS15X:
+		s2mps11->rdev_num = ARRAY_SIZE(s2mps15_regulators);
+		regulators = s2mps15_regulators;
+		break;
 	case S2MPU02:
 		s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators);
 		regulators = s2mpu02_regulators;
@@ -1067,10 +1199,11 @@ out:
 }
 
 static const struct platform_device_id s2mps11_pmic_id[] = {
-	{ "s2mps11-pmic", S2MPS11X},
-	{ "s2mps13-pmic", S2MPS13X},
-	{ "s2mps14-pmic", S2MPS14X},
-	{ "s2mpu02-pmic", S2MPU02},
+	{ "s2mps11-regulator", S2MPS11X},
+	{ "s2mps13-regulator", S2MPS13X},
+	{ "s2mps14-regulator", S2MPS14X},
+	{ "s2mps15-regulator", S2MPS15X},
+	{ "s2mpu02-regulator", S2MPU02},
 	{ },
 };
 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
@@ -1097,5 +1230,5 @@ module_exit(s2mps11_pmic_exit);
 
 /* Module information */
 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
-MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPU02 Regulator Driver");
+MODULE_DESCRIPTION("SAMSUNG S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
index ddc4f10e268a..584ef3dedca6 100644
--- a/drivers/regulator/tps6105x-regulator.c
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -27,90 +27,12 @@ static const unsigned int tps6105x_voltages[] = {
 	5000000, /* There is an additional 5V */
 };
 
-static int tps6105x_regulator_enable(struct regulator_dev *rdev)
-{
-	struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
-	int ret;
-
-	/* Activate voltage mode */
-	ret = regmap_update_bits(tps6105x->regmap, TPS6105X_REG_0,
-		TPS6105X_REG0_MODE_MASK,
-		TPS6105X_REG0_MODE_VOLTAGE << TPS6105X_REG0_MODE_SHIFT);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-static int tps6105x_regulator_disable(struct regulator_dev *rdev)
-{
-	struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
-	int ret;
-
-	/* Set into shutdown mode */
-	ret = regmap_update_bits(tps6105x->regmap, TPS6105X_REG_0,
-		TPS6105X_REG0_MODE_MASK,
-		TPS6105X_REG0_MODE_SHUTDOWN << TPS6105X_REG0_MODE_SHIFT);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-static int tps6105x_regulator_is_enabled(struct regulator_dev *rdev)
-{
-	struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
-	unsigned int regval;
-	int ret;
-
-	ret = regmap_read(tps6105x->regmap, TPS6105X_REG_0, &regval);
-	if (ret)
-		return ret;
-	regval &= TPS6105X_REG0_MODE_MASK;
-	regval >>= TPS6105X_REG0_MODE_SHIFT;
-
-	if (regval == TPS6105X_REG0_MODE_VOLTAGE)
-		return 1;
-
-	return 0;
-}
-
-static int tps6105x_regulator_get_voltage_sel(struct regulator_dev *rdev)
-{
-	struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
-	unsigned int regval;
-	int ret;
-
-	ret = regmap_read(tps6105x->regmap, TPS6105X_REG_0, &regval);
-	if (ret)
-		return ret;
-
-	regval &= TPS6105X_REG0_VOLTAGE_MASK;
-	regval >>= TPS6105X_REG0_VOLTAGE_SHIFT;
-	return (int) regval;
-}
-
-static int tps6105x_regulator_set_voltage_sel(struct regulator_dev *rdev,
-					      unsigned selector)
-{
-	struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
-	int ret;
-
-	ret = regmap_update_bits(tps6105x->regmap, TPS6105X_REG_0,
-				    TPS6105X_REG0_VOLTAGE_MASK,
-				    selector << TPS6105X_REG0_VOLTAGE_SHIFT);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 static struct regulator_ops tps6105x_regulator_ops = {
-	.enable		= tps6105x_regulator_enable,
-	.disable	= tps6105x_regulator_disable,
-	.is_enabled	= tps6105x_regulator_is_enabled,
-	.get_voltage_sel = tps6105x_regulator_get_voltage_sel,
-	.set_voltage_sel = tps6105x_regulator_set_voltage_sel,
+	.enable		= regulator_enable_regmap,
+	.disable	= regulator_disable_regmap,
+	.is_enabled	= regulator_is_enabled_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.list_voltage	= regulator_list_voltage_table,
 };
 
@@ -122,6 +44,12 @@ static const struct regulator_desc tps6105x_regulator_desc = {
 	.owner		= THIS_MODULE,
 	.n_voltages	= ARRAY_SIZE(tps6105x_voltages),
 	.volt_table	= tps6105x_voltages,
+	.vsel_reg	= TPS6105X_REG_0,
+	.vsel_mask	= TPS6105X_REG0_VOLTAGE_MASK,
+	.enable_reg	= TPS6105X_REG_0,
+	.enable_mask	= TPS6105X_REG0_MODE_MASK,
+	.enable_val	= TPS6105X_REG0_MODE_VOLTAGE <<
+			  TPS6105X_REG0_MODE_SHIFT,
 };
 
 /*
@@ -144,6 +72,7 @@ static int tps6105x_regulator_probe(struct platform_device *pdev)
 	config.dev = &tps6105x->client->dev;
 	config.init_data = pdata->regulator_data;
 	config.driver_data = tps6105x;
+	config.regmap = tps6105x->regmap;
 
 	/* Register regulator with framework */
 	tps6105x->regulator = devm_regulator_register(&pdev->dev,
diff --git a/drivers/regulator/tps65086-regulator.c b/drivers/regulator/tps65086-regulator.c
new file mode 100644
index 000000000000..33f389d583ef
--- /dev/null
+++ b/drivers/regulator/tps65086-regulator.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author: Andrew F. Davis <afd@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License version 2 for more details.
+ *
+ * Based on the TPS65912 driver
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+
+#include <linux/mfd/tps65086.h>
+
+enum tps65086_regulators { BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, LDOA1,
+	LDOA2, LDOA3, SWA1, SWB1, SWB2, VTT };
+
+#define TPS65086_REGULATOR(_name, _of, _id, _nv, _vr, _vm, _er, _em, _lr, _dr, _dm)	\
+	[_id] = {							\
+		.desc = {						\
+			.name			= _name,		\
+			.of_match		= of_match_ptr(_of),	\
+			.regulators_node	= "regulators",		\
+			.of_parse_cb		= tps65086_of_parse_cb,	\
+			.id			= _id,			\
+			.ops			= &reg_ops,		\
+			.n_voltages		= _nv,			\
+			.type			= REGULATOR_VOLTAGE,	\
+			.owner			= THIS_MODULE,		\
+			.vsel_reg		= _vr,			\
+			.vsel_mask		= _vm,			\
+			.enable_reg		= _er,			\
+			.enable_mask		= _em,			\
+			.volt_table		= NULL,			\
+			.linear_ranges		= _lr,			\
+			.n_linear_ranges	= ARRAY_SIZE(_lr),	\
+		},							\
+		.decay_reg = _dr,					\
+		.decay_mask = _dm,					\
+	}
+
+#define TPS65086_SWITCH(_name, _of, _id, _er, _em)			\
+	[_id] = {							\
+		.desc = {						\
+			.name			= _name,		\
+			.of_match		= of_match_ptr(_of),	\
+			.regulators_node	= "regulators",		\
+			.of_parse_cb		= tps65086_of_parse_cb,	\
+			.id			= _id,			\
+			.ops			= &switch_ops,		\
+			.type			= REGULATOR_VOLTAGE,	\
+			.owner			= THIS_MODULE,		\
+			.enable_reg		= _er,			\
+			.enable_mask		= _em,			\
+		},							\
+	}
+
+struct tps65086_regulator {
+	struct regulator_desc desc;
+	unsigned int decay_reg;
+	unsigned int decay_mask;
+};
+
+static const struct regulator_linear_range tps65086_buck126_10mv_ranges[] = {
+	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
+	REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000),
+};
+
+static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = {
+	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
+	REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0),
+	REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000),
+};
+
+static const struct regulator_linear_range tps65086_buck345_ranges[] = {
+	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
+	REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000),
+};
+
+static const struct regulator_linear_range tps65086_ldoa1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1350000, 0x0, 0x0, 0),
+	REGULATOR_LINEAR_RANGE(1500000, 0x1, 0x7, 100000),
+	REGULATOR_LINEAR_RANGE(2300000, 0x8, 0xA, 100000),
+	REGULATOR_LINEAR_RANGE(2700000, 0xB, 0xD, 150000),
+	REGULATOR_LINEAR_RANGE(3300000, 0xE, 0xE, 0),
+};
+
+static const struct regulator_linear_range tps65086_ldoa23_ranges[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0x0, 0xD, 50000),
+	REGULATOR_LINEAR_RANGE(1400000, 0xE, 0xF, 100000),
+};
+
+/* Operations permitted on regulators */
+static struct regulator_ops reg_ops = {
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+};
+
+/* Operations permitted on load switches */
+static struct regulator_ops switch_ops = {
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+};
+
+static int tps65086_of_parse_cb(struct device_node *dev,
+				const struct regulator_desc *desc,
+				struct regulator_config *config);
+
+static struct tps65086_regulator regulators[] = {
+	TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL,
+			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0),
+			   tps65086_buck126_10mv_ranges, TPS65086_BUCK1CTRL,
+			   BIT(0)),
+	TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL,
+			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1),
+			   tps65086_buck126_10mv_ranges, TPS65086_BUCK2CTRL,
+			   BIT(0)),
+	TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID,
+			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2),
+			   tps65086_buck345_ranges, TPS65086_BUCK3DECAY,
+			   BIT(0)),
+	TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID,
+			   BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0),
+			   tps65086_buck345_ranges, TPS65086_BUCK4VID,
+			   BIT(0)),
+	TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID,
+			   BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0),
+			   tps65086_buck345_ranges, TPS65086_BUCK5CTRL,
+			   BIT(0)),
+	TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID,
+			   BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0),
+			   tps65086_buck126_10mv_ranges, TPS65086_BUCK6CTRL,
+			   BIT(0)),
+	TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL,
+			   VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0),
+			   tps65086_ldoa1_ranges, 0, 0),
+	TPS65086_REGULATOR("LDOA2", "ldoa2", LDOA2, 0x10, TPS65086_LDOA2VID,
+			   VDOA23_VID_MASK, TPS65086_LDOA2CTRL, BIT(0),
+			   tps65086_ldoa23_ranges, 0, 0),
+	TPS65086_REGULATOR("LDOA3", "ldoa3", LDOA3, 0x10, TPS65086_LDOA3VID,
+			   VDOA23_VID_MASK, TPS65086_LDOA3CTRL, BIT(0),
+			   tps65086_ldoa23_ranges, 0, 0),
+	TPS65086_SWITCH("SWA1", "swa1", SWA1, TPS65086_SWVTT_EN, BIT(5)),
+	TPS65086_SWITCH("SWB1", "swa2", SWB1, TPS65086_SWVTT_EN, BIT(6)),
+	TPS65086_SWITCH("SWB2", "swa3", SWB2, TPS65086_SWVTT_EN, BIT(7)),
+	TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
+};
+
+static inline bool has_25mv_mode(int id)
+{
+	switch (id) {
+	case BUCK1:
+	case BUCK2:
+	case BUCK6:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int tps65086_of_parse_cb(struct device_node *dev,
+				const struct regulator_desc *desc,
+				struct regulator_config *config)
+{
+	int ret;
+
+	/* Check for 25mV step mode */
+	if (has_25mv_mode(desc->id) &&
+			of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
+		regulators[desc->id].desc.linear_ranges =
+				tps65086_buck126_25mv_ranges;
+		regulators[desc->id].desc.n_linear_ranges =
+				ARRAY_SIZE(tps65086_buck126_25mv_ranges);
+	}
+
+	/* Check for decay mode */
+	if (desc->id <= BUCK6 && of_property_read_bool(config->of_node, "ti,regulator-decay")) {
+		ret = regmap_write_bits(config->regmap,
+					regulators[desc->id].decay_reg,
+					regulators[desc->id].decay_mask,
+					regulators[desc->id].decay_mask);
+		if (ret) {
+			dev_err(config->dev, "Error setting decay\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int tps65086_regulator_probe(struct platform_device *pdev)
+{
+	struct tps65086 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	int i;
+
+	platform_set_drvdata(pdev, tps);
+
+	config.dev = &pdev->dev;
+	config.dev->of_node = tps->dev->of_node;
+	config.driver_data = tps;
+	config.regmap = tps->regmap;
+
+	for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i].desc,
+					       &config);
+		if (IS_ERR(rdev)) {
+			dev_err(tps->dev, "failed to register %s regulator\n",
+				pdev->name);
+			return PTR_ERR(rdev);
+		}
+	}
+
+	return 0;
+}
+
+static const struct platform_device_id tps65086_regulator_id_table[] = {
+	{ "tps65086-regulator", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65086_regulator_id_table);
+
+static struct platform_driver tps65086_regulator_driver = {
+	.driver = {
+		.name = "tps65086-regulator",
+	},
+	.probe = tps65086_regulator_probe,
+	.id_table = tps65086_regulator_id_table,
+};
+module_platform_driver(tps65086_regulator_driver);
+
+MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
+MODULE_DESCRIPTION("TPS65086 Regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
index a02c1b961039..a5e5634eeb9e 100644
--- a/drivers/regulator/tps65218-regulator.c
+++ b/drivers/regulator/tps65218-regulator.c
@@ -27,19 +27,22 @@
 #include <linux/regulator/machine.h>
 #include <linux/mfd/tps65218.h>
 
-enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
+enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
+			   DCDC5, DCDC6, LDO1, LS3 };
 
-#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, \
-			    _lr, _nlr, _delay, _fuv)		\
+#define TPS65218_REGULATOR(_name, _id, _type, _ops, _n, _vr, _vm, _er, _em, \
+			    _cr, _cm, _lr, _nlr, _delay, _fuv)		\
 	{							\
 		.name			= _name,		\
 		.id			= _id,			\
 		.ops			= &_ops,		\
 		.n_voltages		= _n,			\
-		.type			= REGULATOR_VOLTAGE,	\
+		.type			= _type,	\
 		.owner			= THIS_MODULE,		\
 		.vsel_reg		= _vr,			\
 		.vsel_mask		= _vm,			\
+		.csel_reg		= _cr,			\
+		.csel_mask		= _cm,			\
 		.enable_reg		= _er,			\
 		.enable_mask		= _em,			\
 		.volt_table		= NULL,			\
@@ -80,6 +83,7 @@ static struct tps_info tps65218_pmic_regs[] = {
 	TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
 	TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
 	TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
+	TPS65218_INFO(LS3, "LS3", -1, -1),
 };
 
 #define TPS65218_OF_MATCH(comp, label) \
@@ -96,6 +100,7 @@ static const struct of_device_id tps65218_of_match[] = {
 	TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
 	TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
 	TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
+	TPS65218_OF_MATCH("ti,tps65218-ls3", tps65218_pmic_regs[LS3]),
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tps65218_of_match);
@@ -175,6 +180,68 @@ static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
 	.map_voltage		= regulator_map_voltage_linear_range,
 };
 
+static const int ls3_currents[] = { 100, 200, 500, 1000 };
+
+static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
+					       int lim_uA)
+{
+	unsigned int index = 0;
+	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
+	struct tps65218 *tps = rdev_get_drvdata(dev);
+
+	while (index < num_currents && ls3_currents[index] != lim_uA)
+		index++;
+
+	if (index == num_currents)
+		return -EINVAL;
+
+	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
+				 index << 2, TPS65218_PROTECT_L1);
+}
+
+static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
+					   int min_uA, int max_uA)
+{
+	int index = 0;
+	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
+	struct tps65218 *tps = rdev_get_drvdata(dev);
+
+	while (index < num_currents && ls3_currents[index] < max_uA)
+		index++;
+
+	index--;
+
+	if (index < 0 || ls3_currents[index] < min_uA)
+		return -EINVAL;
+
+	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
+				 index << 2, TPS65218_PROTECT_L1);
+}
+
+static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
+{
+	int retval;
+	unsigned int index;
+	struct tps65218 *tps = rdev_get_drvdata(dev);
+
+	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
+	if (retval < 0)
+		return retval;
+
+	index = (index & dev->desc->csel_mask) >> 2;
+
+	return ls3_currents[index];
+}
+
+static struct regulator_ops tps65218_ls3_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= tps65218_pmic_enable,
+	.disable		= tps65218_pmic_disable,
+	.set_input_current_limit = tps65218_pmic_set_input_current_lim,
+	.set_current_limit	= tps65218_pmic_set_current_limit,
+	.get_current_limit	= tps65218_pmic_get_current_limit,
+};
+
 /* Operations permitted on DCDC5, DCDC6 */
 static struct regulator_ops tps65218_dcdc56_pmic_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -183,36 +250,46 @@ static struct regulator_ops tps65218_dcdc56_pmic_ops = {
 };
 
 static const struct regulator_desc regulators[] = {
-	TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
-			   TPS65218_REG_CONTROL_DCDC1,
-			   TPS65218_CONTROL_DCDC1_MASK,
-			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN,
-			   dcdc1_dcdc2_ranges, 2, 4000, 0),
-	TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
-			   TPS65218_REG_CONTROL_DCDC2,
-			   TPS65218_CONTROL_DCDC2_MASK,
-			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN,
-			   dcdc1_dcdc2_ranges, 2, 4000, 0),
-	TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
-			   64, TPS65218_REG_CONTROL_DCDC3,
+	TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, REGULATOR_VOLTAGE,
+			   tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC1,
+			   TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
+			   TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
+			   2, 4000, 0),
+	TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, REGULATOR_VOLTAGE,
+			   tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC2,
+			   TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
+			   TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
+			   2, 4000, 0),
+	TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, REGULATOR_VOLTAGE,
+			   tps65218_ldo1_dcdc34_ops, 64,
+			   TPS65218_REG_CONTROL_DCDC3,
 			   TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
-			   TPS65218_ENABLE1_DC3_EN, ldo1_dcdc3_ranges, 2, 0, 0),
-	TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
-			   53, TPS65218_REG_CONTROL_DCDC4,
-			   TPS65218_CONTROL_DCDC4_MASK,
-			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN,
-			   dcdc4_ranges, 2, 0, 0),
-	TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
-			   1, -1, -1, TPS65218_REG_ENABLE1,
-			   TPS65218_ENABLE1_DC5_EN, NULL, 0, 0, 1000000),
-	TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
-			   1, -1, -1, TPS65218_REG_ENABLE1,
-			   TPS65218_ENABLE1_DC6_EN, NULL, 0, 0, 1800000),
-	TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
+			   TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
+			   0, 0),
+	TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, REGULATOR_VOLTAGE,
+			   tps65218_ldo1_dcdc34_ops, 53,
+			   TPS65218_REG_CONTROL_DCDC4,
+			   TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
+			   TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
+			   0, 0),
+	TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, REGULATOR_VOLTAGE,
+			   tps65218_dcdc56_pmic_ops, 1, -1, -1,
+			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0, 0,
+			   NULL, 0, 0, 1000000),
+	TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, REGULATOR_VOLTAGE,
+			   tps65218_dcdc56_pmic_ops, 1, -1, -1,
+			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0, 0,
+			   NULL, 0, 0, 1800000),
+	TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, REGULATOR_VOLTAGE,
+			   tps65218_ldo1_dcdc34_ops, 64,
 			   TPS65218_REG_CONTROL_LDO1,
 			   TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
-			   TPS65218_ENABLE2_LDO1_EN, ldo1_dcdc3_ranges,
+			   TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
 			   2, 0, 0),
+	TPS65218_REGULATOR("LS3", TPS65218_LS_3, REGULATOR_CURRENT,
+			   tps65218_ls3_ops, 0, 0, 0, TPS65218_REG_ENABLE2,
+			   TPS65218_ENABLE2_LS3_EN, TPS65218_REG_CONFIG2,
+			   TPS65218_CONFIG2_LS3ILIM_MASK, NULL, 0, 0, 0),
 };
 
 static int tps65218_regulator_probe(struct platform_device *pdev)
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 8cbb82ceec40..5a5bc4bb08d2 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -365,7 +365,7 @@ static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
 	return wm831x_dcdc_ilim[val];
 }
 
-static struct regulator_ops wm831x_buckv_ops = {
+static const struct regulator_ops wm831x_buckv_ops = {
 	.set_voltage_sel = wm831x_buckv_set_voltage_sel,
 	.get_voltage_sel = wm831x_buckv_get_voltage_sel,
 	.list_voltage = wm831x_buckv_list_voltage,
@@ -585,7 +585,7 @@ static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, int uV)
 	return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, sel);
 }
 
-static struct regulator_ops wm831x_buckp_ops = {
+static const struct regulator_ops wm831x_buckp_ops = {
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.list_voltage = regulator_list_voltage_linear,
@@ -725,7 +725,7 @@ static int wm831x_boostp_get_status(struct regulator_dev *rdev)
 		return REGULATOR_STATUS_OFF;
 }
 
-static struct regulator_ops wm831x_boostp_ops = {
+static const struct regulator_ops wm831x_boostp_ops = {
 	.get_status = wm831x_boostp_get_status,
 
 	.is_enabled = regulator_is_enabled_regmap,
@@ -818,7 +818,7 @@ static struct platform_driver wm831x_boostp_driver = {
 
 #define WM831X_EPE_BASE 6
 
-static struct regulator_ops wm831x_epe_ops = {
+static const struct regulator_ops wm831x_epe_ops = {
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
@@ -884,35 +884,22 @@ static struct platform_driver wm831x_epe_driver = {
 	},
 };
 
+static struct platform_driver * const drivers[] = {
+	&wm831x_buckv_driver,
+	&wm831x_buckp_driver,
+	&wm831x_boostp_driver,
+	&wm831x_epe_driver,
+};
+
 static int __init wm831x_dcdc_init(void)
 {
-	int ret;
-	ret = platform_driver_register(&wm831x_buckv_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x BUCKV driver: %d\n", ret);
-
-	ret = platform_driver_register(&wm831x_buckp_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x BUCKP driver: %d\n", ret);
-
-	ret = platform_driver_register(&wm831x_boostp_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x BOOST driver: %d\n", ret);
-
-	ret = platform_driver_register(&wm831x_epe_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x EPE driver: %d\n", ret);
-
-	return 0;
+	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 subsys_initcall(wm831x_dcdc_init);
 
 static void __exit wm831x_dcdc_exit(void)
 {
-	platform_driver_unregister(&wm831x_epe_driver);
-	platform_driver_unregister(&wm831x_boostp_driver);
-	platform_driver_unregister(&wm831x_buckp_driver);
-	platform_driver_unregister(&wm831x_buckv_driver);
+	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
 }
 module_exit(wm831x_dcdc_exit);
 
diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 1442828fcd9a..6dd891d7eee3 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -128,7 +128,7 @@ static int wm831x_isink_get_current(struct regulator_dev *rdev)
 	return wm831x_isinkv_values[ret];
 }
 
-static struct regulator_ops wm831x_isink_ops = {
+static const struct regulator_ops wm831x_isink_ops = {
 	.is_enabled = wm831x_isink_is_enabled,
 	.enable = wm831x_isink_enable,
 	.disable = wm831x_isink_disable,
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 5a7b65e8a529..e4a6f888484e 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -198,7 +198,7 @@ static unsigned int wm831x_gp_ldo_get_optimum_mode(struct regulator_dev *rdev,
 }
 
 
-static struct regulator_ops wm831x_gp_ldo_ops = {
+static const struct regulator_ops wm831x_gp_ldo_ops = {
 	.list_voltage = regulator_list_voltage_linear_range,
 	.map_voltage = regulator_map_voltage_linear_range,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -409,7 +409,7 @@ static int wm831x_aldo_get_status(struct regulator_dev *rdev)
 		return regulator_mode_to_status(ret);
 }
 
-static struct regulator_ops wm831x_aldo_ops = {
+static const struct regulator_ops wm831x_aldo_ops = {
 	.list_voltage = regulator_list_voltage_linear_range,
 	.map_voltage = regulator_map_voltage_linear_range,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -557,7 +557,7 @@ static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev)
 		return REGULATOR_STATUS_OFF;
 }
 
-static struct regulator_ops wm831x_alive_ldo_ops = {
+static const struct regulator_ops wm831x_alive_ldo_ops = {
 	.list_voltage = regulator_list_voltage_linear,
 	.map_voltage = regulator_map_voltage_linear,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -653,32 +653,21 @@ static struct platform_driver wm831x_alive_ldo_driver = {
 	},
 };
 
+static struct platform_driver * const drivers[] = {
+	&wm831x_gp_ldo_driver,
+	&wm831x_aldo_driver,
+	&wm831x_alive_ldo_driver,
+};
+
 static int __init wm831x_ldo_init(void)
 {
-	int ret;
-
-	ret = platform_driver_register(&wm831x_gp_ldo_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x GP LDO driver: %d\n", ret);
-
-	ret = platform_driver_register(&wm831x_aldo_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x ALDO driver: %d\n", ret);
-
-	ret = platform_driver_register(&wm831x_alive_ldo_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM831x alive LDO driver: %d\n",
-		       ret);
-
-	return 0;
+	return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
 }
 subsys_initcall(wm831x_ldo_init);
 
 static void __exit wm831x_ldo_exit(void)
 {
-	platform_driver_unregister(&wm831x_alive_ldo_driver);
-	platform_driver_unregister(&wm831x_aldo_driver);
-	platform_driver_unregister(&wm831x_gp_ldo_driver);
+	platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
 }
 module_exit(wm831x_ldo_exit);
 
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 95f6b040186e..da9106bd2109 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -941,7 +941,7 @@ static unsigned int wm8350_dcdc_get_optimum_mode(struct regulator_dev *rdev,
 	return mode;
 }
 
-static struct regulator_ops wm8350_dcdc_ops = {
+static const struct regulator_ops wm8350_dcdc_ops = {
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.list_voltage = regulator_list_voltage_linear,
@@ -958,7 +958,7 @@ static struct regulator_ops wm8350_dcdc_ops = {
 	.set_suspend_mode = wm8350_dcdc_set_suspend_mode,
 };
 
-static struct regulator_ops wm8350_dcdc2_5_ops = {
+static const struct regulator_ops wm8350_dcdc2_5_ops = {
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
@@ -966,7 +966,7 @@ static struct regulator_ops wm8350_dcdc2_5_ops = {
 	.set_suspend_disable = wm8350_dcdc25_set_suspend_disable,
 };
 
-static struct regulator_ops wm8350_ldo_ops = {
+static const struct regulator_ops wm8350_ldo_ops = {
 	.map_voltage = regulator_map_voltage_linear_range,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -980,7 +980,7 @@ static struct regulator_ops wm8350_ldo_ops = {
 	.set_suspend_disable = wm8350_ldo_set_suspend_disable,
 };
 
-static struct regulator_ops wm8350_isink_ops = {
+static const struct regulator_ops wm8350_isink_ops = {
 	.set_current_limit = wm8350_isink_set_current,
 	.get_current_limit = wm8350_isink_get_current,
 	.enable = wm8350_isink_enable,
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 82d829000851..fb1837657b64 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -24,7 +24,7 @@ static const struct regulator_linear_range wm8400_ldo_ranges[] = {
 	REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000),
 };
 
-static struct regulator_ops wm8400_ldo_ops = {
+static const struct regulator_ops wm8400_ldo_ops = {
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
@@ -106,7 +106,7 @@ static unsigned int wm8400_dcdc_get_optimum_mode(struct regulator_dev *dev,
 	return REGULATOR_MODE_NORMAL;
 }
 
-static struct regulator_ops wm8400_dcdc_ops = {
+static const struct regulator_ops wm8400_dcdc_ops = {
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index 750e0bd61f9f..7a4ce6df4f22 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -36,7 +36,7 @@ struct wm8994_ldo {
 #define WM8994_LDO1_MAX_SELECTOR 0x7
 #define WM8994_LDO2_MAX_SELECTOR 0x3
 
-static struct regulator_ops wm8994_ldo1_ops = {
+static const struct regulator_ops wm8994_ldo1_ops = {
 	.list_voltage = regulator_list_voltage_linear,
 	.map_voltage = regulator_map_voltage_linear,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -69,7 +69,7 @@ static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev,
 	}
 }
 
-static struct regulator_ops wm8994_ldo2_ops = {
+static const struct regulator_ops wm8994_ldo2_ops = {
 	.list_voltage = wm8994_ldo2_list_voltage,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
diff --git a/drivers/rtc/rtc-opal.c b/drivers/rtc/rtc-opal.c
index df39ce02a99d..9c18d6fd8107 100644
--- a/drivers/rtc/rtc-opal.c
+++ b/drivers/rtc/rtc-opal.c
@@ -40,7 +40,7 @@ static void opal_to_tm(u32 y_m_d, u64 h_m_s_ms, struct rtc_time *tm)
 	tm->tm_min  = bcd2bin((h_m_s_ms >> 48) & 0xff);
 	tm->tm_sec  = bcd2bin((h_m_s_ms >> 40) & 0xff);
 
-	GregorianDay(tm);
+	tm->tm_wday = -1;
 }
 
 static void tm_to_opal(struct rtc_time *tm, u32 *y_m_d, u64 *h_m_s_ms)
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index f2504b4eef34..0d68a85dd429 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -188,6 +188,7 @@ static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info,
 		ret = regmap_read(info->regmap, S5M_RTC_STATUS, &val);
 		val &= S5M_ALARM0_STATUS;
 		break;
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2,
@@ -219,9 +220,22 @@ static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info)
 		return ret;
 	}
 
-	data |= info->regs->rtc_udr_mask;
-	if (info->device_type == S5M8763X || info->device_type == S5M8767X)
-		data |= S5M_RTC_TIME_EN_MASK;
+	switch (info->device_type) {
+	case S5M8763X:
+	case S5M8767X:
+		data |= info->regs->rtc_udr_mask | S5M_RTC_TIME_EN_MASK;
+	case S2MPS15X:
+		/* As per UM, for write time register, set WUDR bit to high */
+		data |= S2MPS15_RTC_WUDR_MASK;
+		break;
+	case S2MPS14X:
+	case S2MPS13X:
+		data |= info->regs->rtc_udr_mask;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 
 	ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data);
 	if (ret < 0) {
@@ -252,6 +266,11 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
 	case S5M8767X:
 		data &= ~S5M_RTC_TIME_EN_MASK;
 		break;
+	case S2MPS15X:
+		/* As per UM, for write alarm, set A_UDR(bit[4]) to high
+		 * rtc_udr_mask above sets bit[4]
+		 */
+		break;
 	case S2MPS14X:
 		data |= S2MPS_RTC_RUDR_MASK;
 		break;
@@ -317,7 +336,8 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	u8 data[info->regs->regs_count];
 	int ret;
 
-	if (info->device_type == S2MPS14X || info->device_type == S2MPS13X) {
+	if (info->device_type == S2MPS15X || info->device_type == S2MPS14X ||
+			info->device_type == S2MPS13X) {
 		ret = regmap_update_bits(info->regmap,
 				info->regs->rtc_udr_update,
 				S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK);
@@ -339,6 +359,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		break;
 
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
@@ -366,6 +387,7 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		s5m8763_tm_to_data(tm, data);
 		break;
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		ret = s5m8767_tm_to_data(tm, data);
@@ -414,6 +436,7 @@ static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		break;
 
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
@@ -463,6 +486,7 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
 		break;
 
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		for (i = 0; i < info->regs->regs_count; i++)
@@ -508,6 +532,7 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
 		break;
 
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		data[RTC_SEC] |= ALARM_ENABLE_MASK;
@@ -548,6 +573,7 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		break;
 
 	case S5M8767X:
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		s5m8767_tm_to_data(&alrm->time, data);
@@ -631,6 +657,7 @@ static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
 		ret = regmap_raw_write(info->regmap, S5M_ALARM0_CONF, data, 2);
 		break;
 
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
@@ -679,6 +706,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	switch (platform_get_device_id(pdev)->driver_data) {
+	case S2MPS15X:
 	case S2MPS14X:
 	case S2MPS13X:
 		regmap_cfg = &s2mps14_rtc_regmap_config;
@@ -805,6 +833,7 @@ static const struct platform_device_id s5m_rtc_id[] = {
 	{ "s5m-rtc",		S5M8767X },
 	{ "s2mps13-rtc",	S2MPS13X },
 	{ "s2mps14-rtc",	S2MPS14X },
+	{ "s2mps15-rtc",	S2MPS15X },
 	{ },
 };
 MODULE_DEVICE_TABLE(platform, s5m_rtc_id);
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index a263c10359e1..41605dac8309 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2556,8 +2556,12 @@ static void __dasd_process_request_queue(struct dasd_block *block)
 		return;
 	}
 
-	/* if device ist stopped do not fetch new requests */
-	if (basedev->stopped)
+	/*
+	 * if device is stopped do not fetch new requests
+	 * except failfast is active which will let requests fail
+	 * immediately in __dasd_block_start_head()
+	 */
+	if (basedev->stopped && !(basedev->features & DASD_FEATURE_FAILFAST))
 		return;
 
 	/* Now we try to fetch requests from the request queue */
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index eaca3e006301..b3f1c458905f 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -78,19 +78,6 @@ config SCLP_VT220_CONSOLE
 	  Include support for using an IBM SCLP VT220-compatible terminal as a
 	  Linux system console.
 
-config SCLP_CPI
-	def_tristate m
-	prompt "Control-Program Identification"
-	depends on S390
-	help
-	  This option enables the hardware console interface for system
-	  identification. This is commonly used for workload management and
-	  gives you a nice name for the system on the service element.
-	  Please select this option as a module since built-in operation is
-	  completely untested.
-	  You should only select this option if you know what you are doing,
-	  need this feature and intend to run your kernel in LPAR.
-
 config SCLP_ASYNC
 	def_tristate m
 	prompt "Support for Call Home via Asynchronous SCLP Records"
@@ -125,6 +112,14 @@ config HMC_DRV
 	  transfer cache size from it's default value 0.5MB to N bytes. If N
 	  is zero, then no caching is performed.
 
+config SCLP_OFB
+	def_bool n
+	prompt "Support for Open-for-Business SCLP Event"
+	depends on S390
+	help
+	  This option enables the Open-for-Business interface to the s390
+	  Service Element.
+
 config S390_TAPE
 	def_tristate m
 	prompt "S/390 tape device support"
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 6fa9364d1c07..dd2f7c832e5e 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_TN3215) += con3215.o
 obj-$(CONFIG_SCLP_TTY) += sclp_tty.o
 obj-$(CONFIG_SCLP_CONSOLE) += sclp_con.o
 obj-$(CONFIG_SCLP_VT220_TTY) += sclp_vt220.o
-obj-$(CONFIG_SCLP_CPI) += sclp_cpi.o
 obj-$(CONFIG_SCLP_ASYNC) += sclp_async.o
 
 obj-$(CONFIG_VMLOGRDR) += vmlogrdr.o
@@ -30,9 +29,7 @@ obj-$(CONFIG_S390_TAPE_3590) += tape_3590.o
 obj-$(CONFIG_MONREADER) += monreader.o
 obj-$(CONFIG_MONWRITER) += monwriter.o
 obj-$(CONFIG_S390_VMUR) += vmur.o
-
-zcore_mod-objs := sclp_sdias.o zcore.o
-obj-$(CONFIG_CRASH_DUMP) += zcore_mod.o
+obj-$(CONFIG_CRASH_DUMP) += sclp_sdias.o zcore.o
 
 hmcdrv-objs := hmcdrv_mod.o hmcdrv_dev.o hmcdrv_ftp.o hmcdrv_cache.o diag_ftp.o sclp_ftp.o
 obj-$(CONFIG_HMC_DRV) += hmcdrv.o
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 0fc3fe5fd5b8..7d82bbcb12df 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -922,6 +922,8 @@ static int __init con3215_init(void)
 	spin_lock_init(&raw3215_freelist_lock);
 	for (i = 0; i < NR_3215_REQ; i++) {
 		req = kzalloc(sizeof(struct raw3215_req), GFP_KERNEL | GFP_DMA);
+		if (!req)
+			return -ENOMEM;
 		req->next = raw3215_freelist;
 		raw3215_freelist = req;
 	}
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 7c511add5aa7..4d7a9badfede 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -606,6 +606,8 @@ con3270_init(void)
 		return PTR_ERR(rp);
 
 	condev = kzalloc(sizeof(struct con3270), GFP_KERNEL | GFP_DMA);
+	if (!condev)
+		return -ENOMEM;
 	condev->view.dev = rp;
 
 	condev->read = raw3270_request_alloc(0);
diff --git a/drivers/s390/char/hmcdrv_ftp.c b/drivers/s390/char/hmcdrv_ftp.c
index d4b61d9088fb..8cb7d8fbadd6 100644
--- a/drivers/s390/char/hmcdrv_ftp.c
+++ b/drivers/s390/char/hmcdrv_ftp.c
@@ -37,7 +37,7 @@ struct hmcdrv_ftp_ops {
 static enum hmcdrv_ftp_cmdid hmcdrv_ftp_cmd_getid(const char *cmd, int len);
 static int hmcdrv_ftp_parse(char *cmd, struct hmcdrv_ftp_cmdspec *ftp);
 
-static struct hmcdrv_ftp_ops *hmcdrv_ftp_funcs; /* current operations */
+static const struct hmcdrv_ftp_ops *hmcdrv_ftp_funcs; /* current operations */
 static DEFINE_MUTEX(hmcdrv_ftp_mutex); /* mutex for hmcdrv_ftp_funcs */
 static unsigned hmcdrv_ftp_refcnt; /* start/shutdown reference counter */
 
@@ -290,13 +290,13 @@ ssize_t hmcdrv_ftp_cmd(char __kernel *cmd, loff_t offset,
  */
 int hmcdrv_ftp_startup(void)
 {
-	static struct hmcdrv_ftp_ops hmcdrv_ftp_zvm = {
+	static const struct hmcdrv_ftp_ops hmcdrv_ftp_zvm = {
 		.startup = diag_ftp_startup,
 		.shutdown = diag_ftp_shutdown,
 		.transfer = diag_ftp_cmd
 	};
 
-	static struct hmcdrv_ftp_ops hmcdrv_ftp_lpar = {
+	static const struct hmcdrv_ftp_ops hmcdrv_ftp_lpar = {
 		.startup = sclp_ftp_startup,
 		.shutdown = sclp_ftp_shutdown,
 		.transfer = sclp_ftp_cmd
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index f58bf4c6c3ee..272898225dbb 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -579,9 +579,8 @@ sclp_sync_wait(void)
 	old_tick = local_tick_disable();
 	trace_hardirqs_on();
 	__ctl_store(cr0, 0, 0);
-	cr0_sync = cr0;
-	cr0_sync &= 0xffff00a0;
-	cr0_sync |= 0x00000200;
+	cr0_sync = cr0 & ~CR0_IRQ_SUBCLASS_MASK;
+	cr0_sync |= 1UL << (63 - 54);
 	__ctl_load(cr0_sync, 0, 0);
 	__arch_local_irq_stosm(0x01);
 	/* Loop until driver state indicates finished request */
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 944156207477..2ced50ccca63 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -11,6 +11,8 @@
 #include <linux/cpu.h>
 #include <linux/device.h>
 #include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
 #include <asm/smp.h>
 
 #include "sclp.h"
@@ -20,8 +22,22 @@ struct conf_mgm_data {
 	u8 ev_qualifier;
 } __attribute__((packed));
 
+#define OFB_DATA_MAX 64
+
+struct sclp_ofb_evbuf {
+	struct evbuf_header header;
+	struct conf_mgm_data cm_data;
+	char ev_data[OFB_DATA_MAX];
+} __packed;
+
+struct sclp_ofb_sccb {
+	struct sccb_header header;
+	struct sclp_ofb_evbuf ofb_evbuf;
+} __packed;
+
 #define EV_QUAL_CPU_CHANGE	1
 #define EV_QUAL_CAP_CHANGE	3
+#define EV_QUAL_OPEN4BUSINESS	5
 
 static struct work_struct sclp_cpu_capability_work;
 static struct work_struct sclp_cpu_change_work;
@@ -63,15 +79,99 @@ static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
 
 static struct sclp_register sclp_conf_register =
 {
+#ifdef CONFIG_SCLP_OFB
+	.send_mask    = EVTYP_CONFMGMDATA_MASK,
+#endif
 	.receive_mask = EVTYP_CONFMGMDATA_MASK,
 	.receiver_fn  = sclp_conf_receiver_fn,
 };
 
+#ifdef CONFIG_SCLP_OFB
+static int sclp_ofb_send_req(char *ev_data, size_t len)
+{
+	static DEFINE_MUTEX(send_mutex);
+	struct sclp_ofb_sccb *sccb;
+	int rc, response;
+
+	if (len > OFB_DATA_MAX)
+		return -EINVAL;
+	sccb = (struct sclp_ofb_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	if (!sccb)
+		return -ENOMEM;
+	/* Setup SCCB for Control-Program Identification */
+	sccb->header.length = sizeof(struct sclp_ofb_sccb);
+	sccb->ofb_evbuf.header.length = sizeof(struct sclp_ofb_evbuf);
+	sccb->ofb_evbuf.header.type = EVTYP_CONFMGMDATA;
+	sccb->ofb_evbuf.cm_data.ev_qualifier = EV_QUAL_OPEN4BUSINESS;
+	memcpy(sccb->ofb_evbuf.ev_data, ev_data, len);
+
+	if (!(sclp_conf_register.sclp_receive_mask & EVTYP_CONFMGMDATA_MASK))
+		pr_warn("SCLP receiver did not register to receive "
+			"Configuration Management Data Events.\n");
+
+	mutex_lock(&send_mutex);
+	rc = sclp_sync_request(SCLP_CMDW_WRITE_EVENT_DATA, sccb);
+	mutex_unlock(&send_mutex);
+	if (rc)
+		goto out;
+	response = sccb->header.response_code;
+	if (response != 0x0020) {
+		pr_err("Open for Business request failed with response code "
+		       "0x%04x\n", response);
+		rc = -EIO;
+	}
+out:
+	free_page((unsigned long)sccb);
+	return rc;
+}
+
+static ssize_t sysfs_ofb_data_write(struct file *filp, struct kobject *kobj,
+				    struct bin_attribute *bin_attr,
+				    char *buf, loff_t off, size_t count)
+{
+	int rc;
+
+	rc = sclp_ofb_send_req(buf, count);
+	return rc ?: count;
+}
+
+static struct bin_attribute ofb_bin_attr = {
+	.attr = {
+		.name = "event_data",
+		.mode = S_IWUSR,
+	},
+	.write = sysfs_ofb_data_write,
+};
+#endif
+
+static int __init sclp_ofb_setup(void)
+{
+#ifdef CONFIG_SCLP_OFB
+	struct kset *ofb_kset;
+	int rc;
+
+	ofb_kset = kset_create_and_add("ofb", NULL, firmware_kobj);
+	if (!ofb_kset)
+		return -ENOMEM;
+	rc = sysfs_create_bin_file(&ofb_kset->kobj, &ofb_bin_attr);
+	if (rc) {
+		kset_unregister(ofb_kset);
+		return rc;
+	}
+#endif
+	return 0;
+}
+
 static int __init sclp_conf_init(void)
 {
+	int rc;
+
 	INIT_WORK(&sclp_cpu_capability_work, sclp_cpu_capability_notify);
 	INIT_WORK(&sclp_cpu_change_work, sclp_cpu_change_notify);
-	return sclp_register(&sclp_conf_register);
+	rc = sclp_register(&sclp_conf_register);
+	if (rc)
+		return rc;
+	return sclp_ofb_setup();
 }
 
 __initcall(sclp_conf_init);
diff --git a/drivers/s390/char/sclp_cpi.c b/drivers/s390/char/sclp_cpi.c
deleted file mode 100644
index d70d8c20229c..000000000000
--- a/drivers/s390/char/sclp_cpi.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- *    SCLP control programm identification
- *
- *    Copyright IBM Corp. 2001, 2007
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Michael Ernst <mernst@de.ibm.com>
- */
-
-#include <linux/kmod.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/version.h>
-#include "sclp_cpi_sys.h"
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Identify this operating system instance "
-		   "to the System z hardware");
-MODULE_AUTHOR("Martin Peschke <mpeschke@de.ibm.com>, "
-	      "Michael Ernst <mernst@de.ibm.com>");
-
-static char *system_name = "";
-static char *sysplex_name = "";
-
-module_param(system_name, charp, 0);
-MODULE_PARM_DESC(system_name, "e.g. hostname - max. 8 characters");
-module_param(sysplex_name, charp, 0);
-MODULE_PARM_DESC(sysplex_name, "if applicable - max. 8 characters");
-
-static int __init cpi_module_init(void)
-{
-	return sclp_cpi_set_data(system_name, sysplex_name, "LINUX",
-				 LINUX_VERSION_CODE);
-}
-
-static void __exit cpi_module_exit(void)
-{
-}
-
-module_init(cpi_module_init);
-module_exit(cpi_module_exit);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 3339b862ec17..5043ecfa1fbc 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -28,13 +28,12 @@
 #include <asm/processor.h>
 #include <asm/irqflags.h>
 #include <asm/checksum.h>
+#include <asm/os_info.h>
 #include <asm/switch_to.h>
 #include "sclp.h"
 
 #define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x)
 
-#define TO_USER		1
-#define TO_KERNEL	0
 #define CHUNK_INFO_SIZE	34 /* 2 16-byte char, each followed by blank */
 
 enum arch_id {
@@ -42,241 +41,93 @@ enum arch_id {
 	ARCH_S390X	= 1,
 };
 
-/* dump system info */
-
-struct sys_info {
-	enum arch_id	 arch;
-	unsigned long	 sa_base;
-	u32		 sa_size;
-	int		 cpu_map[NR_CPUS];
-	unsigned long	 mem_size;
-	struct save_area lc_mask;
-};
-
 struct ipib_info {
 	unsigned long	ipib;
 	u32		checksum;
 }  __attribute__((packed));
 
-static struct sys_info sys_info;
 static struct debug_info *zcore_dbf;
 static int hsa_available;
 static struct dentry *zcore_dir;
-static struct dentry *zcore_file;
 static struct dentry *zcore_memmap_file;
 static struct dentry *zcore_reipl_file;
 static struct dentry *zcore_hsa_file;
 static struct ipl_parameter_block *ipl_block;
 
+static char hsa_buf[PAGE_SIZE] __aligned(PAGE_SIZE);
+
 /*
- * Copy memory from HSA to kernel or user memory (not reentrant):
+ * Copy memory from HSA to user memory (not reentrant):
  *
- * @dest:  Kernel or user buffer where memory should be copied to
+ * @dest:  User buffer where memory should be copied to
  * @src:   Start address within HSA where data should be copied
  * @count: Size of buffer, which should be copied
- * @mode:  Either TO_KERNEL or TO_USER
  */
-int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode)
+int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count)
 {
-	int offs, blk_num;
-	static char buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+	unsigned long offset, bytes;
 
 	if (!hsa_available)
 		return -ENODATA;
-	if (count == 0)
-		return 0;
 
-	/* copy first block */
-	offs = 0;
-	if ((src % PAGE_SIZE) != 0) {
-		blk_num = src / PAGE_SIZE + 2;
-		if (sclp_sdias_copy(buf, blk_num, 1)) {
+	while (count) {
+		if (sclp_sdias_copy(hsa_buf, src / PAGE_SIZE + 2, 1)) {
 			TRACE("sclp_sdias_copy() failed\n");
 			return -EIO;
 		}
-		offs = min((PAGE_SIZE - (src % PAGE_SIZE)), count);
-		if (mode == TO_USER) {
-			if (copy_to_user((__force __user void*) dest,
-					 buf + (src % PAGE_SIZE), offs))
-				return -EFAULT;
-		} else
-			memcpy(dest, buf + (src % PAGE_SIZE), offs);
-	}
-	if (offs == count)
-		goto out;
-
-	/* copy middle */
-	for (; (offs + PAGE_SIZE) <= count; offs += PAGE_SIZE) {
-		blk_num = (src + offs) / PAGE_SIZE + 2;
-		if (sclp_sdias_copy(buf, blk_num, 1)) {
-			TRACE("sclp_sdias_copy() failed\n");
-			return -EIO;
-		}
-		if (mode == TO_USER) {
-			if (copy_to_user((__force __user void*) dest + offs,
-					 buf, PAGE_SIZE))
-				return -EFAULT;
-		} else
-			memcpy(dest + offs, buf, PAGE_SIZE);
-	}
-	if (offs == count)
-		goto out;
-
-	/* copy last block */
-	blk_num = (src + offs) / PAGE_SIZE + 2;
-	if (sclp_sdias_copy(buf, blk_num, 1)) {
-		TRACE("sclp_sdias_copy() failed\n");
-		return -EIO;
-	}
-	if (mode == TO_USER) {
-		if (copy_to_user((__force __user void*) dest + offs, buf,
-				 count - offs))
+		offset = src % PAGE_SIZE;
+		bytes = min(PAGE_SIZE - offset, count);
+		if (copy_to_user(dest, hsa_buf + offset, bytes))
 			return -EFAULT;
-	} else
-		memcpy(dest + offs, buf, count - offs);
-out:
-	return 0;
-}
-
-static int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count)
-{
-	return memcpy_hsa((void __force *) dest, src, count, TO_USER);
-}
-
-static int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count)
-{
-	return memcpy_hsa(dest, src, count, TO_KERNEL);
-}
-
-static int __init init_cpu_info(enum arch_id arch)
-{
-	struct save_area_ext *sa_ext;
-
-	/* get info for boot cpu from lowcore, stored in the HSA */
-
-	sa_ext = dump_save_areas.areas[0];
-	if (!sa_ext)
-		return -ENOMEM;
-	if (memcpy_hsa_kernel(&sa_ext->sa, sys_info.sa_base,
-			      sys_info.sa_size) < 0) {
-		TRACE("could not copy from HSA\n");
-		kfree(sa_ext);
-		return -EIO;
+		src += bytes;
+		dest += bytes;
+		count -= bytes;
 	}
-	if (MACHINE_HAS_VX)
-		save_vx_regs_safe(sa_ext->vx_regs);
 	return 0;
 }
 
-static DEFINE_MUTEX(zcore_mutex);
-
-#define DUMP_VERSION	0x5
-#define DUMP_MAGIC	0xa8190173618f23fdULL
-#define DUMP_ARCH_S390X	2
-#define DUMP_ARCH_S390	1
-#define HEADER_SIZE	4096
-
-/* dump header dumped according to s390 crash dump format */
-
-struct zcore_header {
-	u64 magic;
-	u32 version;
-	u32 header_size;
-	u32 dump_level;
-	u32 page_size;
-	u64 mem_size;
-	u64 mem_start;
-	u64 mem_end;
-	u32 num_pages;
-	u32 pad1;
-	u64 tod;
-	struct cpuid cpu_id;
-	u32 arch_id;
-	u32 volnr;
-	u32 build_arch;
-	u64 rmem_size;
-	u8 mvdump;
-	u16 cpu_cnt;
-	u16 real_cpu_cnt;
-	u8 end_pad1[0x200-0x061];
-	u64 mvdump_sign;
-	u64 mvdump_zipl_time;
-	u8 end_pad2[0x800-0x210];
-	u32 lc_vec[512];
-} __attribute__((packed,__aligned__(16)));
-
-static struct zcore_header zcore_header = {
-	.magic		= DUMP_MAGIC,
-	.version	= DUMP_VERSION,
-	.header_size	= 4096,
-	.dump_level	= 0,
-	.page_size	= PAGE_SIZE,
-	.mem_start	= 0,
-	.build_arch	= DUMP_ARCH_S390X,
-};
-
 /*
- * Copy lowcore info to buffer. Use map in order to copy only register parts.
+ * Copy memory from HSA to kernel memory (not reentrant):
  *
- * @buf:    User buffer
- * @sa:     Pointer to save area
- * @sa_off: Offset in save area to copy
- * @len:    Number of bytes to copy
+ * @dest:  Kernel or user buffer where memory should be copied to
+ * @src:   Start address within HSA where data should be copied
+ * @count: Size of buffer, which should be copied
  */
-static int copy_lc(void __user *buf, void *sa, int sa_off, int len)
+int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count)
 {
-	int i;
-	char *lc_mask = (char*)&sys_info.lc_mask;
+	unsigned long offset, bytes;
 
-	for (i = 0; i < len; i++) {
-		if (!lc_mask[i + sa_off])
-			continue;
-		if (copy_to_user(buf + i, sa + sa_off + i, 1))
-			return -EFAULT;
+	if (!hsa_available)
+		return -ENODATA;
+
+	while (count) {
+		if (sclp_sdias_copy(hsa_buf, src / PAGE_SIZE + 2, 1)) {
+			TRACE("sclp_sdias_copy() failed\n");
+			return -EIO;
+		}
+		offset = src % PAGE_SIZE;
+		bytes = min(PAGE_SIZE - offset, count);
+		memcpy(dest, hsa_buf + offset, bytes);
+		src += bytes;
+		dest += bytes;
+		count -= bytes;
 	}
 	return 0;
 }
 
-/*
- * Copy lowcores info to memory, if necessary
- *
- * @buf:   User buffer
- * @addr:  Start address of buffer in dump memory
- * @count: Size of buffer
- */
-static int zcore_add_lc(char __user *buf, unsigned long start, size_t count)
+static int __init init_cpu_info(void)
 {
-	unsigned long end;
-	int i;
-
-	if (count == 0)
-		return 0;
+	struct save_area *sa;
 
-	end = start + count;
-	for (i = 0; i < dump_save_areas.count; i++) {
-		unsigned long cp_start, cp_end; /* copy range */
-		unsigned long sa_start, sa_end; /* save area range */
-		unsigned long prefix;
-		unsigned long sa_off, len, buf_off;
-		struct save_area *save_area = &dump_save_areas.areas[i]->sa;
-
-		prefix = save_area->pref_reg;
-		sa_start = prefix + sys_info.sa_base;
-		sa_end = prefix + sys_info.sa_base + sys_info.sa_size;
-
-		if ((end < sa_start) || (start > sa_end))
-			continue;
-		cp_start = max(start, sa_start);
-		cp_end = min(end, sa_end);
-
-		buf_off = cp_start - start;
-		sa_off = cp_start - sa_start;
-		len = cp_end - cp_start;
-
-		TRACE("copy_lc for: %lx\n", start);
-		if (copy_lc(buf + buf_off, save_area, sa_off, len))
-			return -EFAULT;
+	/* get info for boot cpu from lowcore, stored in the HSA */
+	sa = save_area_boot_cpu();
+	if (!sa)
+		return -ENOMEM;
+	if (memcpy_hsa_kernel(hsa_buf, __LC_FPREGS_SAVE_AREA, 512) < 0) {
+		TRACE("could not copy from HSA\n");
+		return -EIO;
 	}
+	save_area_add_regs(sa, hsa_buf); /* vx registers are saved in smp.c */
 	return 0;
 }
 
@@ -289,115 +140,6 @@ static void release_hsa(void)
 	hsa_available = 0;
 }
 
-/*
- * Read routine for zcore character device
- * First 4K are dump header
- * Next 32MB are HSA Memory
- * Rest is read from absolute Memory
- */
-static ssize_t zcore_read(struct file *file, char __user *buf, size_t count,
-			  loff_t *ppos)
-{
-	unsigned long mem_start; /* Start address in memory */
-	size_t mem_offs;	 /* Offset in dump memory */
-	size_t hdr_count;	 /* Size of header part of output buffer */
-	size_t size;
-	int rc;
-
-	mutex_lock(&zcore_mutex);
-
-	if (*ppos > (sys_info.mem_size + HEADER_SIZE)) {
-		rc = -EINVAL;
-		goto fail;
-	}
-
-	count = min(count, (size_t) (sys_info.mem_size + HEADER_SIZE - *ppos));
-
-	/* Copy dump header */
-	if (*ppos < HEADER_SIZE) {
-		size = min(count, (size_t) (HEADER_SIZE - *ppos));
-		if (copy_to_user(buf, &zcore_header + *ppos, size)) {
-			rc = -EFAULT;
-			goto fail;
-		}
-		hdr_count = size;
-		mem_start = 0;
-	} else {
-		hdr_count = 0;
-		mem_start = *ppos - HEADER_SIZE;
-	}
-
-	mem_offs = 0;
-
-	/* Copy from HSA data */
-	if (*ppos < sclp.hsa_size + HEADER_SIZE) {
-		size = min((count - hdr_count),
-			   (size_t) (sclp.hsa_size - mem_start));
-		rc = memcpy_hsa_user(buf + hdr_count, mem_start, size);
-		if (rc)
-			goto fail;
-
-		mem_offs += size;
-	}
-
-	/* Copy from real mem */
-	size = count - mem_offs - hdr_count;
-	rc = copy_to_user_real(buf + hdr_count + mem_offs,
-			       (void *) mem_start + mem_offs, size);
-	if (rc)
-		goto fail;
-
-	/*
-	 * Since s390 dump analysis tools like lcrash or crash
-	 * expect register sets in the prefix pages of the cpus,
-	 * we copy them into the read buffer, if necessary.
-	 * buf + hdr_count: Start of memory part of output buffer
-	 * mem_start: Start memory address to copy from
-	 * count - hdr_count: Size of memory area to copy
-	 */
-	if (zcore_add_lc(buf + hdr_count, mem_start, count - hdr_count)) {
-		rc = -EFAULT;
-		goto fail;
-	}
-	*ppos += count;
-fail:
-	mutex_unlock(&zcore_mutex);
-	return (rc < 0) ? rc : count;
-}
-
-static int zcore_open(struct inode *inode, struct file *filp)
-{
-	if (!hsa_available)
-		return -ENODATA;
-	else
-		return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
-}
-
-static int zcore_release(struct inode *inode, struct file *filep)
-{
-	if (hsa_available)
-		release_hsa();
-	return 0;
-}
-
-static loff_t zcore_lseek(struct file *file, loff_t offset, int orig)
-{
-	loff_t rc;
-
-	mutex_lock(&zcore_mutex);
-	rc = no_seek_end_llseek(file, offset, orig);
-	mutex_unlock(&zcore_mutex);
-	return rc;
-}
-
-static const struct file_operations zcore_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= zcore_lseek,
-	.read		= zcore_read,
-	.open		= zcore_open,
-	.release	= zcore_release,
-};
-
 static ssize_t zcore_memmap_read(struct file *filp, char __user *buf,
 				 size_t count, loff_t *ppos)
 {
@@ -501,50 +243,6 @@ static const struct file_operations zcore_hsa_fops = {
 	.llseek		= no_llseek,
 };
 
-static void __init set_lc_mask(struct save_area *map)
-{
-	memset(&map->fp_regs, 0xff, sizeof(map->fp_regs));
-	memset(&map->gp_regs, 0xff, sizeof(map->gp_regs));
-	memset(&map->psw, 0xff, sizeof(map->psw));
-	memset(&map->pref_reg, 0xff, sizeof(map->pref_reg));
-	memset(&map->fp_ctrl_reg, 0xff, sizeof(map->fp_ctrl_reg));
-	memset(&map->tod_reg, 0xff, sizeof(map->tod_reg));
-	memset(&map->timer, 0xff, sizeof(map->timer));
-	memset(&map->clk_cmp, 0xff, sizeof(map->clk_cmp));
-	memset(&map->acc_regs, 0xff, sizeof(map->acc_regs));
-	memset(&map->ctrl_regs, 0xff, sizeof(map->ctrl_regs));
-}
-
-/*
- * Initialize dump globals for a given architecture
- */
-static int __init sys_info_init(enum arch_id arch, unsigned long mem_end)
-{
-	int rc;
-
-	switch (arch) {
-	case ARCH_S390X:
-		pr_alert("DETECTED 'S390X (64 bit) OS'\n");
-		break;
-	case ARCH_S390:
-		pr_alert("DETECTED 'S390 (32 bit) OS'\n");
-		break;
-	default:
-		pr_alert("0x%x is an unknown architecture.\n",arch);
-		return -EINVAL;
-	}
-	sys_info.sa_base = SAVE_AREA_BASE;
-	sys_info.sa_size = sizeof(struct save_area);
-	sys_info.arch = arch;
-	set_lc_mask(&sys_info.lc_mask);
-	rc = init_cpu_info(arch);
-	if (rc)
-		return rc;
-	sys_info.mem_size = mem_end;
-
-	return 0;
-}
-
 static int __init check_sdias(void)
 {
 	if (!sclp.hsa_size) {
@@ -554,43 +252,6 @@ static int __init check_sdias(void)
 	return 0;
 }
 
-static int __init get_mem_info(unsigned long *mem, unsigned long *end)
-{
-	struct memblock_region *reg;
-
-	for_each_memblock(memory, reg) {
-		*mem += reg->size;
-		*end = max_t(unsigned long, *end, reg->base + reg->size);
-	}
-	return 0;
-}
-
-static void __init zcore_header_init(int arch, struct zcore_header *hdr,
-				     unsigned long mem_size)
-{
-	u32 prefix;
-	int i;
-
-	if (arch == ARCH_S390X)
-		hdr->arch_id = DUMP_ARCH_S390X;
-	else
-		hdr->arch_id = DUMP_ARCH_S390;
-	hdr->mem_size = mem_size;
-	hdr->rmem_size = mem_size;
-	hdr->mem_end = sys_info.mem_size;
-	hdr->num_pages = mem_size / PAGE_SIZE;
-	hdr->tod = get_tod_clock();
-	get_cpu_id(&hdr->cpu_id);
-	for (i = 0; i < dump_save_areas.count; i++) {
-		prefix = dump_save_areas.areas[i]->sa.pref_reg;
-		hdr->real_cpu_cnt++;
-		if (!prefix)
-			continue;
-		hdr->lc_vec[hdr->cpu_cnt] = prefix;
-		hdr->cpu_cnt++;
-	}
-}
-
 /*
  * Provide IPL parameter information block from either HSA or memory
  * for future reipl
@@ -623,11 +284,9 @@ static int __init zcore_reipl_init(void)
 
 static int __init zcore_init(void)
 {
-	unsigned long mem_size, mem_end;
 	unsigned char arch;
 	int rc;
 
-	mem_size = mem_end = 0;
 	if (ipl_info.type != IPL_TYPE_FCP_DUMP)
 		return -ENODATA;
 	if (OLDMEM_BASE)
@@ -661,14 +320,10 @@ static int __init zcore_init(void)
 		goto fail;
 	}
 
-	rc = get_mem_info(&mem_size, &mem_end);
-	if (rc)
-		goto fail;
-
-	rc = sys_info_init(arch, mem_end);
+	pr_alert("DETECTED 'S390X (64 bit) OS'\n");
+	rc = init_cpu_info();
 	if (rc)
 		goto fail;
-	zcore_header_init(arch, &zcore_header, mem_size);
 
 	rc = zcore_reipl_init();
 	if (rc)
@@ -679,17 +334,11 @@ static int __init zcore_init(void)
 		rc = -ENOMEM;
 		goto fail;
 	}
-	zcore_file = debugfs_create_file("mem", S_IRUSR, zcore_dir, NULL,
-					 &zcore_fops);
-	if (!zcore_file) {
-		rc = -ENOMEM;
-		goto fail_dir;
-	}
 	zcore_memmap_file = debugfs_create_file("memmap", S_IRUSR, zcore_dir,
 						NULL, &zcore_memmap_fops);
 	if (!zcore_memmap_file) {
 		rc = -ENOMEM;
-		goto fail_file;
+		goto fail_dir;
 	}
 	zcore_reipl_file = debugfs_create_file("reipl", S_IRUSR, zcore_dir,
 						NULL, &zcore_reipl_fops);
@@ -709,8 +358,6 @@ fail_reipl_file:
 	debugfs_remove(zcore_reipl_file);
 fail_memmap_file:
 	debugfs_remove(zcore_memmap_file);
-fail_file:
-	debugfs_remove(zcore_file);
 fail_dir:
 	debugfs_remove(zcore_dir);
 fail:
@@ -726,7 +373,6 @@ static void __exit zcore_exit(void)
 	debugfs_remove(zcore_hsa_file);
 	debugfs_remove(zcore_reipl_file);
 	debugfs_remove(zcore_memmap_file);
-	debugfs_remove(zcore_file);
 	debugfs_remove(zcore_dir);
 	diag308(DIAG308_REL_HSA, NULL);
 }
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index 8c4a386e97f6..3ab9aedeb84a 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -2,8 +2,11 @@
 # Makefile for the S/390 common i/o drivers
 #
 
+# The following is required for define_trace.h to find ./trace.h
+CFLAGS_trace.o := -I$(src)
+
 obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o \
-	fcx.o itcw.o crw.o ccwreq.o
+	fcx.o itcw.o crw.o ccwreq.o trace.o ioasm.o
 ccw_device-objs += device.o device_fsm.o device_ops.o
 ccw_device-objs += device_id.o device_pgid.o device_status.o
 obj-y += ccw_device.o cmf.o
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index 56eb4ee4deba..99b5db469097 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -89,6 +89,7 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy)
 
 	set_cpu_flag(CIF_NOHZ_DELAY);
 	tpi_info = (struct tpi_info *) &get_irq_regs()->int_code;
+	trace_s390_cio_adapter_int(tpi_info);
 	head = &airq_lists[tpi_info->isc];
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(airq, head, list)
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 213159dec89e..b6f12c2bb114 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -133,7 +133,7 @@ static int chsc_subchannel_prepare(struct subchannel *sch)
 	 * since we don't have a way to clear the subchannel and
 	 * cannot disable it with a request running.
 	 */
-	cc = stsch_err(sch->schid, &schib);
+	cc = stsch(sch->schid, &schib);
 	if (!cc && scsw_stctl(&schib.scsw))
 		return -EAGAIN;
 	return 0;
@@ -185,8 +185,7 @@ static int __init chsc_init_dbfs(void)
 	debug_set_level(chsc_debug_log_id, 2);
 	return 0;
 out:
-	if (chsc_debug_msg_id)
-		debug_unregister(chsc_debug_msg_id);
+	debug_unregister(chsc_debug_msg_id);
 	return -ENOMEM;
 }
 
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 690b8547e828..39a8ae54e9c1 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -41,6 +41,7 @@
 #include "blacklist.h"
 #include "cio_debug.h"
 #include "chp.h"
+#include "trace.h"
 
 debug_info_t *cio_debug_msg_id;
 debug_info_t *cio_debug_trace_id;
@@ -76,12 +77,9 @@ static int __init cio_debug_init(void)
 	return 0;
 
 out_unregister:
-	if (cio_debug_msg_id)
-		debug_unregister(cio_debug_msg_id);
-	if (cio_debug_trace_id)
-		debug_unregister(cio_debug_trace_id);
-	if (cio_debug_crw_id)
-		debug_unregister(cio_debug_crw_id);
+	debug_unregister(cio_debug_msg_id);
+	debug_unregister(cio_debug_trace_id);
+	debug_unregister(cio_debug_crw_id);
 	return -1;
 }
 
@@ -348,18 +346,18 @@ int cio_commit_config(struct subchannel *sch)
 	struct schib schib;
 	struct irb irb;
 
-	if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib))
+	if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
 		return -ENODEV;
 
 	for (retry = 0; retry < 5; retry++) {
 		/* copy desired changes to local schib */
 		cio_apply_config(sch, &schib);
-		ccode = msch_err(sch->schid, &schib);
+		ccode = msch(sch->schid, &schib);
 		if (ccode < 0) /* -EIO if msch gets a program check. */
 			return ccode;
 		switch (ccode) {
 		case 0: /* successful */
-			if (stsch_err(sch->schid, &schib) ||
+			if (stsch(sch->schid, &schib) ||
 			    !css_sch_is_valid(&schib))
 				return -ENODEV;
 			if (cio_check_config(sch, &schib)) {
@@ -394,7 +392,7 @@ int cio_update_schib(struct subchannel *sch)
 {
 	struct schib schib;
 
-	if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib))
+	if (stsch(sch->schid, &schib) || !css_sch_is_valid(&schib))
 		return -ENODEV;
 
 	memcpy(&sch->schib, &schib, sizeof(schib));
@@ -503,7 +501,7 @@ int cio_validate_subchannel(struct subchannel *sch, struct subchannel_id schid)
 	 * If stsch gets an exception, it means the current subchannel set
 	 * is not valid.
 	 */
-	ccode = stsch_err(schid, &sch->schib);
+	ccode = stsch(schid, &sch->schib);
 	if (ccode) {
 		err = (ccode == 3) ? -ENXIO : ccode;
 		goto out;
@@ -542,6 +540,7 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy)
 
 	set_cpu_flag(CIF_NOHZ_DELAY);
 	tpi_info = (struct tpi_info *) &get_irq_regs()->int_code;
+	trace_s390_cio_interrupt(tpi_info);
 	irb = this_cpu_ptr(&cio_irb);
 	sch = (struct subchannel *)(unsigned long) tpi_info->intparm;
 	if (!sch) {
@@ -619,7 +618,7 @@ static int cio_test_for_console(struct subchannel_id schid, void *data)
 {
 	struct schib schib;
 
-	if (stsch_err(schid, &schib) != 0)
+	if (stsch(schid, &schib) != 0)
 		return -ENXIO;
 	if ((schib.pmcw.st == SUBCHANNEL_TYPE_IO) && schib.pmcw.dnv &&
 	    (schib.pmcw.dev == console_devno)) {
@@ -638,7 +637,7 @@ static int cio_get_console_sch_no(void)
 	if (console_irq != -1) {
 		/* VM provided us with the irq number of the console. */
 		schid.sch_no = console_irq;
-		if (stsch_err(schid, &schib) != 0 ||
+		if (stsch(schid, &schib) != 0 ||
 		    (schib.pmcw.st != SUBCHANNEL_TYPE_IO) || !schib.pmcw.dnv)
 			return -1;
 		console_devno = schib.pmcw.dev;
@@ -708,10 +707,10 @@ __disable_subchannel_easy(struct subchannel_id schid, struct schib *schib)
 	cc = 0;
 	for (retry=0;retry<3;retry++) {
 		schib->pmcw.ena = 0;
-		cc = msch_err(schid, schib);
+		cc = msch(schid, schib);
 		if (cc)
 			return (cc==3?-ENODEV:-EBUSY);
-		if (stsch_err(schid, schib) || !css_sch_is_valid(schib))
+		if (stsch(schid, schib) || !css_sch_is_valid(schib))
 			return -ENODEV;
 		if (!schib->pmcw.ena)
 			return 0;
@@ -758,7 +757,7 @@ static int stsch_reset(struct subchannel_id schid, struct schib *addr)
 
 	pgm_check_occured = 0;
 	s390_base_pgm_handler_fn = cio_reset_pgm_check_handler;
-	rc = stsch_err(schid, addr);
+	rc = stsch(schid, addr);
 	s390_base_pgm_handler_fn = NULL;
 
 	/* The program check handler could have changed pgm_check_occured. */
@@ -795,7 +794,7 @@ static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data)
 			/* No default clear strategy */
 			break;
 		}
-		stsch_err(schid, &schib);
+		stsch(schid, &schib);
 		__disable_subchannel_easy(schid, &schib);
 	}
 out:
@@ -917,7 +916,7 @@ void reipl_ccw_dev(struct ccw_dev_id *devid)
 {
 	struct subchannel_id uninitialized_var(schid);
 
-	s390_reset_system(NULL, NULL, NULL);
+	s390_reset_system();
 	if (reipl_find_schid(devid, &schid) != 0)
 		panic("IPL Device not found\n");
 	do_reipl_asm(*((__u32*)&schid));
@@ -943,7 +942,7 @@ int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo)
 		if (__chsc_enable_facility(&sda_area, CHSC_SDA_OC_MSS))
 			return -ENODEV;
 	}
-	if (stsch_err(schid, &schib))
+	if (stsch(schid, &schib))
 		return -ENODEV;
 	if (schib.pmcw.st != SUBCHANNEL_TYPE_IO)
 		return -ENODEV;
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index a01376ae1749..93de0b46b489 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -45,6 +45,18 @@ struct pmcw {
 				/*  ... in an operand exception.       */
 } __attribute__ ((packed));
 
+/* I/O-Interruption Code as stored by TEST PENDING INTERRUPTION (TPI). */
+struct tpi_info {
+	struct subchannel_id schid;
+	u32 intparm;
+	u32 adapter_IO:1;
+	u32 :1;
+	u32 isc:3;
+	u32 :27;
+	u32 type:3;
+	u32 :12;
+} __packed __aligned(4);
+
 /* Target SCHIB configuration. */
 struct schib_config {
 	u64 mba;
diff --git a/drivers/s390/cio/crw.c b/drivers/s390/cio/crw.c
index 0f8a25f98b10..3d3cd402b376 100644
--- a/drivers/s390/cio/crw.c
+++ b/drivers/s390/cio/crw.c
@@ -14,6 +14,7 @@
 #include <linux/wait.h>
 #include <asm/crw.h>
 #include <asm/ctl_reg.h>
+#include "ioasm.h"
 
 static DEFINE_MUTEX(crw_handler_mutex);
 static crw_handler_t crw_handlers[NR_RSCS];
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 489e703dc82d..3d2b20ee613f 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -390,7 +390,7 @@ static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow)
 		/* Will be done on the slow path. */
 		return -EAGAIN;
 	}
-	if (stsch_err(schid, &schib)) {
+	if (stsch(schid, &schib)) {
 		/* Subchannel is not provided. */
 		return -ENXIO;
 	}
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 92e03b42e661..8327d47e08b6 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -44,7 +44,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
 	sch = to_subchannel(cdev->dev.parent);
 	private = to_io_private(sch);
 	orb = &private->orb;
-	cc = stsch_err(sch->schid, &schib);
+	cc = stsch(sch->schid, &schib);
 
 	printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
 	       "device information:\n", get_tod_clock());
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index b108f4a5c7dd..8975060af96c 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -169,49 +169,4 @@ struct ccw_device_private {
 	enum interruption_class int_class;
 };
 
-static inline int rsch(struct subchannel_id schid)
-{
-	register struct subchannel_id reg1 asm("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	rsch\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode)
-		: "d" (reg1)
-		: "cc", "memory");
-	return ccode;
-}
-
-static inline int hsch(struct subchannel_id schid)
-{
-	register struct subchannel_id reg1 asm("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	hsch\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode)
-		: "d" (reg1)
-		: "cc");
-	return ccode;
-}
-
-static inline int xsch(struct subchannel_id schid)
-{
-	register struct subchannel_id reg1 asm("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	.insn	rre,0xb2760000,%1,0\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode)
-		: "d" (reg1)
-		: "cc");
-	return ccode;
-}
-
 #endif
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
new file mode 100644
index 000000000000..98984818618f
--- /dev/null
+++ b/drivers/s390/cio/ioasm.c
@@ -0,0 +1,224 @@
+/*
+ * Channel subsystem I/O instructions.
+ */
+
+#include <linux/export.h>
+
+#include <asm/chpid.h>
+#include <asm/schid.h>
+#include <asm/crw.h>
+
+#include "ioasm.h"
+#include "orb.h"
+#include "cio.h"
+
+int stsch(struct subchannel_id schid, struct schib *addr)
+{
+	register struct subchannel_id reg1 asm ("1") = schid;
+	int ccode = -EIO;
+
+	asm volatile(
+		"	stsch	0(%3)\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (ccode), "=m" (*addr)
+		: "d" (reg1), "a" (addr)
+		: "cc");
+	trace_s390_cio_stsch(schid, addr, ccode);
+
+	return ccode;
+}
+EXPORT_SYMBOL(stsch);
+
+int msch(struct subchannel_id schid, struct schib *addr)
+{
+	register struct subchannel_id reg1 asm ("1") = schid;
+	int ccode = -EIO;
+
+	asm volatile(
+		"	msch	0(%2)\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (ccode)
+		: "d" (reg1), "a" (addr), "m" (*addr)
+		: "cc");
+	trace_s390_cio_msch(schid, addr, ccode);
+
+	return ccode;
+}
+
+int tsch(struct subchannel_id schid, struct irb *addr)
+{
+	register struct subchannel_id reg1 asm ("1") = schid;
+	int ccode;
+
+	asm volatile(
+		"	tsch	0(%3)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode), "=m" (*addr)
+		: "d" (reg1), "a" (addr)
+		: "cc");
+	trace_s390_cio_tsch(schid, addr, ccode);
+
+	return ccode;
+}
+
+int ssch(struct subchannel_id schid, union orb *addr)
+{
+	register struct subchannel_id reg1 asm("1") = schid;
+	int ccode = -EIO;
+
+	asm volatile(
+		"	ssch	0(%2)\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (ccode)
+		: "d" (reg1), "a" (addr), "m" (*addr)
+		: "cc", "memory");
+	trace_s390_cio_ssch(schid, addr, ccode);
+
+	return ccode;
+}
+EXPORT_SYMBOL(ssch);
+
+int csch(struct subchannel_id schid)
+{
+	register struct subchannel_id reg1 asm("1") = schid;
+	int ccode;
+
+	asm volatile(
+		"	csch\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
+	trace_s390_cio_csch(schid, ccode);
+
+	return ccode;
+}
+EXPORT_SYMBOL(csch);
+
+int tpi(struct tpi_info *addr)
+{
+	int ccode;
+
+	asm volatile(
+		"	tpi	0(%2)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode), "=m" (*addr)
+		: "a" (addr)
+		: "cc");
+	trace_s390_cio_tpi(addr, ccode);
+
+	return ccode;
+}
+
+int chsc(void *chsc_area)
+{
+	typedef struct { char _[4096]; } addr_type;
+	int cc;
+
+	asm volatile(
+		"	.insn	rre,0xb25f0000,%2,0\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (cc), "=m" (*(addr_type *) chsc_area)
+		: "d" (chsc_area), "m" (*(addr_type *) chsc_area)
+		: "cc");
+	trace_s390_cio_chsc(chsc_area, cc);
+
+	return cc;
+}
+EXPORT_SYMBOL(chsc);
+
+int rchp(struct chp_id chpid)
+{
+	register struct chp_id reg1 asm ("1") = chpid;
+	int ccode;
+
+	asm volatile(
+		"	lr	1,%1\n"
+		"	rchp\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode) : "d" (reg1) : "cc");
+	trace_s390_cio_rchp(chpid, ccode);
+
+	return ccode;
+}
+
+int rsch(struct subchannel_id schid)
+{
+	register struct subchannel_id reg1 asm("1") = schid;
+	int ccode;
+
+	asm volatile(
+		"	rsch\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc", "memory");
+	trace_s390_cio_rsch(schid, ccode);
+
+	return ccode;
+}
+
+int hsch(struct subchannel_id schid)
+{
+	register struct subchannel_id reg1 asm("1") = schid;
+	int ccode;
+
+	asm volatile(
+		"	hsch\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
+	trace_s390_cio_hsch(schid, ccode);
+
+	return ccode;
+}
+
+int xsch(struct subchannel_id schid)
+{
+	register struct subchannel_id reg1 asm("1") = schid;
+	int ccode;
+
+	asm volatile(
+		"	xsch\n"
+		"	ipm	%0\n"
+		"	srl	%0,28"
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
+	trace_s390_cio_xsch(schid, ccode);
+
+	return ccode;
+}
+
+int stcrw(struct crw *crw)
+{
+	int ccode;
+
+	asm volatile(
+		"	stcrw	0(%2)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (ccode), "=m" (*crw)
+		: "a" (crw)
+		: "cc");
+	trace_s390_cio_stcrw(crw, ccode);
+
+	return ccode;
+}
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index 4d80fc67a06b..b31ee6bff1e4 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -3,165 +3,26 @@
 
 #include <asm/chpid.h>
 #include <asm/schid.h>
+#include <asm/crw.h>
 #include "orb.h"
 #include "cio.h"
+#include "trace.h"
 
 /*
- * TPI info structure
+ * Some S390 specific IO instructions
  */
-struct tpi_info {
-	struct subchannel_id schid;
-	__u32 intparm;		 /* interruption parameter */
-	__u32 adapter_IO : 1;
-	__u32 reserved2	 : 1;
-	__u32 isc	 : 3;
-	__u32 reserved3	 : 12;
-	__u32 int_type	 : 3;
-	__u32 reserved4	 : 12;
-} __attribute__ ((packed));
 
-
-/*
- * Some S390 specific IO instructions as inline
- */
-
-static inline int stsch_err(struct subchannel_id schid, struct schib *addr)
-{
-	register struct subchannel_id reg1 asm ("1") = schid;
-	int ccode = -EIO;
-
-	asm volatile(
-		"	stsch	0(%3)\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "+d" (ccode), "=m" (*addr)
-		: "d" (reg1), "a" (addr)
-		: "cc");
-	return ccode;
-}
-
-static inline int msch(struct subchannel_id schid, struct schib *addr)
-{
-	register struct subchannel_id reg1 asm ("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	msch	0(%2)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode)
-		: "d" (reg1), "a" (addr), "m" (*addr)
-		: "cc");
-	return ccode;
-}
-
-static inline int msch_err(struct subchannel_id schid, struct schib *addr)
-{
-	register struct subchannel_id reg1 asm ("1") = schid;
-	int ccode = -EIO;
-
-	asm volatile(
-		"	msch	0(%2)\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "+d" (ccode)
-		: "d" (reg1), "a" (addr), "m" (*addr)
-		: "cc");
-	return ccode;
-}
-
-static inline int tsch(struct subchannel_id schid, struct irb *addr)
-{
-	register struct subchannel_id reg1 asm ("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	tsch	0(%3)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode), "=m" (*addr)
-		: "d" (reg1), "a" (addr)
-		: "cc");
-	return ccode;
-}
-
-static inline int ssch(struct subchannel_id schid, union orb *addr)
-{
-	register struct subchannel_id reg1 asm("1") = schid;
-	int ccode = -EIO;
-
-	asm volatile(
-		"	ssch	0(%2)\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b, 1b)
-		: "+d" (ccode)
-		: "d" (reg1), "a" (addr), "m" (*addr)
-		: "cc", "memory");
-	return ccode;
-}
-
-static inline int csch(struct subchannel_id schid)
-{
-	register struct subchannel_id reg1 asm("1") = schid;
-	int ccode;
-
-	asm volatile(
-		"	csch\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode)
-		: "d" (reg1)
-		: "cc");
-	return ccode;
-}
-
-static inline int tpi(struct tpi_info *addr)
-{
-	int ccode;
-
-	asm volatile(
-		"	tpi	0(%2)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode), "=m" (*addr)
-		: "a" (addr)
-		: "cc");
-	return ccode;
-}
-
-static inline int chsc(void *chsc_area)
-{
-	typedef struct { char _[4096]; } addr_type;
-	int cc;
-
-	asm volatile(
-		"	.insn	rre,0xb25f0000,%2,0\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		: "=d" (cc), "=m" (*(addr_type *) chsc_area)
-		: "d" (chsc_area), "m" (*(addr_type *) chsc_area)
-		: "cc");
-	return cc;
-}
-
-static inline int rchp(struct chp_id chpid)
-{
-	register struct chp_id reg1 asm ("1") = chpid;
-	int ccode;
-
-	asm volatile(
-		"	lr	1,%1\n"
-		"	rchp\n"
-		"	ipm	%0\n"
-		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1) : "cc");
-	return ccode;
-}
+int stsch(struct subchannel_id schid, struct schib *addr);
+int msch(struct subchannel_id schid, struct schib *addr);
+int tsch(struct subchannel_id schid, struct irb *addr);
+int ssch(struct subchannel_id schid, union orb *addr);
+int csch(struct subchannel_id schid);
+int tpi(struct tpi_info *addr);
+int chsc(void *chsc_area);
+int rchp(struct chp_id chpid);
+int rsch(struct subchannel_id schid);
+int hsch(struct subchannel_id schid);
+int xsch(struct subchannel_id schid);
+int stcrw(struct crw *crw);
 
 #endif
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index f1f3baa8e6e4..b6fc147f83d8 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -366,8 +366,6 @@ void qdio_debug_exit(void)
 {
 	qdio_clear_dbf_list();
 	debugfs_remove(debugfs_root);
-	if (qdio_dbf_setup)
-		debug_unregister(qdio_dbf_setup);
-	if (qdio_dbf_error)
-		debug_unregister(qdio_dbf_error);
+	debug_unregister(qdio_dbf_setup);
+	debug_unregister(qdio_dbf_error);
 }
diff --git a/drivers/s390/cio/trace.c b/drivers/s390/cio/trace.c
new file mode 100644
index 000000000000..8e706669ac8b
--- /dev/null
+++ b/drivers/s390/cio/trace.c
@@ -0,0 +1,24 @@
+/*
+ * Tracepoint definitions for s390_cio
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+ */
+
+#include <asm/crw.h>
+#include "cio.h"
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_stsch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_msch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_tsch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_tpi);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_ssch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_csch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_hsch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_xsch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_rsch);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_rchp);
+EXPORT_TRACEPOINT_SYMBOL(s390_cio_chsc);
diff --git a/drivers/s390/cio/trace.h b/drivers/s390/cio/trace.h
new file mode 100644
index 000000000000..5b807a09f21b
--- /dev/null
+++ b/drivers/s390/cio/trace.h
@@ -0,0 +1,363 @@
+/*
+ * Tracepoint header for the s390 Common I/O layer (CIO)
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+ */
+
+#include <linux/kernel.h>
+#include <asm/crw.h>
+#include <uapi/asm/chpid.h>
+#include <uapi/asm/schid.h>
+#include "cio.h"
+#include "orb.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM s390
+
+#if !defined(_TRACE_S390_CIO_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_S390_CIO_H
+
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(s390_class_schib,
+	TP_PROTO(struct subchannel_id schid, struct schib *schib, int cc),
+	TP_ARGS(schid, schib, cc),
+	TP_STRUCT__entry(
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+		__field(u16, devno)
+		__field_struct(struct schib, schib)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->cssid = schid.cssid;
+		__entry->ssid = schid.ssid;
+		__entry->schno = schid.sch_no;
+		__entry->devno = schib->pmcw.dev;
+		__entry->schib = *schib;
+		__entry->cc = cc;
+	),
+	TP_printk("schid=%x.%x.%04x cc=%d ena=%d st=%d dnv=%d dev=%04x "
+		  "lpm=0x%02x pnom=0x%02x lpum=0x%02x pim=0x%02x pam=0x%02x "
+		  "pom=0x%02x chpids=%016llx",
+		  __entry->cssid, __entry->ssid, __entry->schno, __entry->cc,
+		  __entry->schib.pmcw.ena, __entry->schib.pmcw.st,
+		  __entry->schib.pmcw.dnv, __entry->schib.pmcw.dev,
+		  __entry->schib.pmcw.lpm, __entry->schib.pmcw.pnom,
+		  __entry->schib.pmcw.lpum, __entry->schib.pmcw.pim,
+		  __entry->schib.pmcw.pam, __entry->schib.pmcw.pom,
+		  *((u64 *) __entry->schib.pmcw.chpid)
+	)
+);
+
+/**
+ * s390_cio_stsch -  Store Subchannel instruction (STSCH) was performed
+ * @schid: Subchannel ID
+ * @schib: Subchannel-Information block
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schib, s390_cio_stsch,
+	TP_PROTO(struct subchannel_id schid, struct schib *schib, int cc),
+	TP_ARGS(schid, schib, cc)
+);
+
+/**
+ * s390_cio_msch -  Modify Subchannel instruction (MSCH) was performed
+ * @schid: Subchannel ID
+ * @schib: Subchannel-Information block
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schib, s390_cio_msch,
+	TP_PROTO(struct subchannel_id schid, struct schib *schib, int cc),
+	TP_ARGS(schid, schib, cc)
+);
+
+/**
+ * s390_cio_tsch - Test Subchannel instruction (TSCH) was performed
+ * @schid: Subchannel ID
+ * @irb: Interruption-Response Block
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_tsch,
+	TP_PROTO(struct subchannel_id schid, struct irb *irb, int cc),
+	TP_ARGS(schid, irb, cc),
+	TP_STRUCT__entry(
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+		__field_struct(struct irb, irb)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->cssid = schid.cssid;
+		__entry->ssid = schid.ssid;
+		__entry->schno = schid.sch_no;
+		__entry->irb = *irb;
+		__entry->cc = cc;
+	),
+	TP_printk("schid=%x.%x.%04x cc=%d dcc=%d pno=%d fctl=0x%x actl=0x%x "
+		  "stctl=0x%x dstat=0x%x cstat=0x%x",
+		  __entry->cssid, __entry->ssid, __entry->schno, __entry->cc,
+		  scsw_cc(&__entry->irb.scsw), scsw_pno(&__entry->irb.scsw),
+		  scsw_fctl(&__entry->irb.scsw), scsw_actl(&__entry->irb.scsw),
+		  scsw_stctl(&__entry->irb.scsw),
+		  scsw_dstat(&__entry->irb.scsw), scsw_cstat(&__entry->irb.scsw)
+	)
+);
+
+/**
+ * s390_cio_tpi - Test Pending Interruption instruction (TPI) was performed
+ * @addr: Address of the I/O interruption code or %NULL
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_tpi,
+	TP_PROTO(struct tpi_info *addr, int cc),
+	TP_ARGS(addr, cc),
+	TP_STRUCT__entry(
+		__field(int, cc)
+		__field_struct(struct tpi_info, tpi_info)
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+	),
+	TP_fast_assign(
+		__entry->cc = cc;
+		if (cc != 0)
+			memset(&__entry->tpi_info, 0, sizeof(struct tpi_info));
+		else if (addr)
+			__entry->tpi_info = *addr;
+		else {
+			memcpy(&__entry->tpi_info, &S390_lowcore.subchannel_id,
+			       sizeof(struct tpi_info));
+		}
+		__entry->cssid = __entry->tpi_info.schid.cssid;
+		__entry->ssid = __entry->tpi_info.schid.ssid;
+		__entry->schno = __entry->tpi_info.schid.sch_no;
+	),
+	TP_printk("schid=%x.%x.%04x cc=%d a=%d isc=%d type=%d",
+		  __entry->cssid, __entry->ssid, __entry->schno, __entry->cc,
+		  __entry->tpi_info.adapter_IO, __entry->tpi_info.isc,
+		  __entry->tpi_info.type
+	)
+);
+
+/**
+ * s390_cio_ssch - Start Subchannel instruction (SSCH) was performed
+ * @schid: Subchannel ID
+ * @orb: Operation-Request Block
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_ssch,
+	TP_PROTO(struct subchannel_id schid, union orb *orb, int cc),
+	TP_ARGS(schid, orb, cc),
+	TP_STRUCT__entry(
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+		__field_struct(union orb, orb)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->cssid = schid.cssid;
+		__entry->ssid = schid.ssid;
+		__entry->schno = schid.sch_no;
+		__entry->orb = *orb;
+		__entry->cc = cc;
+	),
+	TP_printk("schid=%x.%x.%04x cc=%d", __entry->cssid, __entry->ssid,
+		  __entry->schno, __entry->cc
+	)
+);
+
+DECLARE_EVENT_CLASS(s390_class_schid,
+	TP_PROTO(struct subchannel_id schid, int cc),
+	TP_ARGS(schid, cc),
+	TP_STRUCT__entry(
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->cssid = schid.cssid;
+		__entry->ssid = schid.ssid;
+		__entry->schno = schid.sch_no;
+		__entry->cc = cc;
+	),
+	TP_printk("schid=%x.%x.%04x cc=%d", __entry->cssid, __entry->ssid,
+		  __entry->schno, __entry->cc
+	)
+);
+
+/**
+ * s390_cio_csch - Clear Subchannel instruction (CSCH) was performed
+ * @schid: Subchannel ID
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schid, s390_cio_csch,
+	TP_PROTO(struct subchannel_id schid, int cc),
+	TP_ARGS(schid, cc)
+);
+
+/**
+ * s390_cio_hsch - Halt Subchannel instruction (HSCH) was performed
+ * @schid: Subchannel ID
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schid, s390_cio_hsch,
+	TP_PROTO(struct subchannel_id schid, int cc),
+	TP_ARGS(schid, cc)
+);
+
+/**
+ * s390_cio_xsch - Cancel Subchannel instruction (XSCH) was performed
+ * @schid: Subchannel ID
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schid, s390_cio_xsch,
+	TP_PROTO(struct subchannel_id schid, int cc),
+	TP_ARGS(schid, cc)
+);
+
+/**
+ * s390_cio_rsch - Resume Subchannel instruction (RSCH) was performed
+ * @schid: Subchannel ID
+ * @cc: Condition code
+ */
+DEFINE_EVENT(s390_class_schid, s390_cio_rsch,
+	TP_PROTO(struct subchannel_id schid, int cc),
+	TP_ARGS(schid, cc)
+);
+
+/**
+ * s390_cio_rchp - Reset Channel Path (RCHP) instruction was performed
+ * @chpid: Channel-Path Identifier
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_rchp,
+	TP_PROTO(struct chp_id chpid, int cc),
+	TP_ARGS(chpid, cc),
+	TP_STRUCT__entry(
+		__field(u8, cssid)
+		__field(u8, id)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->cssid = chpid.cssid;
+		__entry->id = chpid.id;
+		__entry->cc = cc;
+	),
+	TP_printk("chpid=%x.%02x cc=%d", __entry->cssid, __entry->id,
+		  __entry->cc
+	)
+);
+
+#define CHSC_MAX_REQUEST_LEN		64
+#define CHSC_MAX_RESPONSE_LEN		64
+
+/**
+ * s390_cio_chsc - Channel Subsystem Call (CHSC) instruction was performed
+ * @chsc: CHSC block
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_chsc,
+	TP_PROTO(struct chsc_header *chsc, int cc),
+	TP_ARGS(chsc, cc),
+	TP_STRUCT__entry(
+		__field(int, cc)
+		__field(u16, code)
+		__field(u16, rcode)
+		__array(u8, request, CHSC_MAX_REQUEST_LEN)
+		__array(u8, response, CHSC_MAX_RESPONSE_LEN)
+	),
+	TP_fast_assign(
+		__entry->cc = cc;
+		__entry->code = chsc->code;
+		memcpy(&entry->request, chsc,
+		       min_t(u16, chsc->length, CHSC_MAX_REQUEST_LEN));
+		chsc = (struct chsc_header *) ((char *) chsc + chsc->length);
+		__entry->rcode = chsc->code;
+		memcpy(&entry->response, chsc,
+		       min_t(u16, chsc->length, CHSC_MAX_RESPONSE_LEN));
+	),
+	TP_printk("code=0x%04x cc=%d rcode=0x%04x", __entry->code,
+		  __entry->cc, __entry->rcode)
+);
+
+/**
+ * s390_cio_interrupt - An I/O interrupt occurred
+ * @tpi_info: Address of the I/O interruption code
+ */
+TRACE_EVENT(s390_cio_interrupt,
+	TP_PROTO(struct tpi_info *tpi_info),
+	TP_ARGS(tpi_info),
+	TP_STRUCT__entry(
+		__field_struct(struct tpi_info, tpi_info)
+		__field(u8, cssid)
+		__field(u8, ssid)
+		__field(u16, schno)
+	),
+	TP_fast_assign(
+		__entry->tpi_info = *tpi_info;
+		__entry->cssid = __entry->tpi_info.schid.cssid;
+		__entry->ssid = __entry->tpi_info.schid.ssid;
+		__entry->schno = __entry->tpi_info.schid.sch_no;
+	),
+	TP_printk("schid=%x.%x.%04x isc=%d type=%d",
+		  __entry->cssid, __entry->ssid, __entry->schno,
+		  __entry->tpi_info.isc, __entry->tpi_info.type
+	)
+);
+
+/**
+ * s390_cio_adapter_int - An adapter interrupt occurred
+ * @tpi_info: Address of the I/O interruption code
+ */
+TRACE_EVENT(s390_cio_adapter_int,
+	TP_PROTO(struct tpi_info *tpi_info),
+	TP_ARGS(tpi_info),
+	TP_STRUCT__entry(
+		__field_struct(struct tpi_info, tpi_info)
+	),
+	TP_fast_assign(
+		__entry->tpi_info = *tpi_info;
+	),
+	TP_printk("isc=%d", __entry->tpi_info.isc)
+);
+
+/**
+ * s390_cio_stcrw - Store Channel Report Word (STCRW) was performed
+ * @crw: Channel Report Word
+ * @cc: Condition code
+ */
+TRACE_EVENT(s390_cio_stcrw,
+	TP_PROTO(struct crw *crw, int cc),
+	TP_ARGS(crw, cc),
+	TP_STRUCT__entry(
+		__field_struct(struct crw, crw)
+		__field(int, cc)
+	),
+	TP_fast_assign(
+		__entry->crw = *crw;
+		__entry->cc = cc;
+	),
+	TP_printk("cc=%d slct=%d oflw=%d chn=%d rsc=%d anc=%d erc=0x%x "
+		  "rsid=0x%x",
+		  __entry->cc, __entry->crw.slct, __entry->crw.oflw,
+		  __entry->crw.chn, __entry->crw.rsc,  __entry->crw.anc,
+		  __entry->crw.erc, __entry->crw.rsid
+	)
+);
+
+#endif /* _TRACE_S390_CIO_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 9f8fa42c062c..5d3d04c040c2 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -1428,10 +1428,8 @@ int __init zcrypt_debug_init(void)
 void zcrypt_debug_exit(void)
 {
 	debugfs_remove(debugfs_root);
-	if (zcrypt_dbf_common)
-		debug_unregister(zcrypt_dbf_common);
-	if (zcrypt_dbf_devices)
-		debug_unregister(zcrypt_dbf_devices);
+	debug_unregister(zcrypt_dbf_common);
+	debug_unregister(zcrypt_dbf_devices);
 }
 
 /**
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 64eed87d34a8..c1fe0d2f90ca 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -194,6 +194,7 @@ config CHR_DEV_SCH
 config SCSI_ENCLOSURE
 	tristate "SCSI Enclosure Support"
 	depends on SCSI && ENCLOSURE_SERVICES
+	depends on m || SCSI_SAS_ATTRS != m
 	help
 	  Enclosures are devices sitting on or in SCSI backplanes that
 	  manage devices.  If you have a disk cage, the chances are that
@@ -474,6 +475,7 @@ config SCSI_AACRAID
 source "drivers/scsi/aic7xxx/Kconfig.aic7xxx"
 source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
 source "drivers/scsi/aic94xx/Kconfig"
+source "drivers/scsi/hisi_sas/Kconfig"
 source "drivers/scsi/mvsas/Kconfig"
 
 config SCSI_MVUMI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index c14bca4a9675..862ab4efad61 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -157,6 +157,7 @@ obj-$(CONFIG_CHR_DEV_SCH)	+= ch.o
 obj-$(CONFIG_SCSI_ENCLOSURE)	+= ses.o
 
 obj-$(CONFIG_SCSI_OSD_INITIATOR) += osd/
+obj-$(CONFIG_SCSI_HISI_SAS) += hisi_sas/
 
 # This goes last, so that "real" scsi devices probe earlier
 obj-$(CONFIG_SCSI_DEBUG)	+= scsi_debug.o
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 3b6e5c67e853..76eaa38ffd6e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1318,7 +1318,7 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 #if (defined(CONFIG_PM))
-void aac_release_resources(struct aac_dev *aac)
+static void aac_release_resources(struct aac_dev *aac)
 {
 	int i;
 
diff --git a/drivers/scsi/aic94xx/aic94xx_sas.h b/drivers/scsi/aic94xx/aic94xx_sas.h
index 912e6b755f74..101072cab70f 100644
--- a/drivers/scsi/aic94xx/aic94xx_sas.h
+++ b/drivers/scsi/aic94xx/aic94xx_sas.h
@@ -327,46 +327,9 @@ struct scb_header {
 
 #define LUN_SIZE                8
 
-/* See SAS spec, task IU
- */
-struct ssp_task_iu {
-	u8     lun[LUN_SIZE];	  /* BE */
-	u16    _r_a;
-	u8     tmf;
-	u8     _r_b;
-	__be16 tag;		  /* BE */
-	u8     _r_c[14];
-} __attribute__ ((packed));
-
-/* See SAS spec, command IU
- */
-struct ssp_command_iu {
-	u8     lun[LUN_SIZE];
-	u8     _r_a;
-	u8     efb_prio_attr;	  /* enable first burst, task prio & attr */
-#define EFB_MASK        0x80
-#define TASK_PRIO_MASK	0x78
-#define TASK_ATTR_MASK  0x07
-
-	u8    _r_b;
-	u8     add_cdb_len;	  /* in dwords, since bit 0,1 are reserved */
-	union {
-		u8     cdb[16];
-		struct {
-			__le64 long_cdb_addr;	  /* bus address, LE */
-			__le32 long_cdb_size;	  /* LE */
-			u8     _r_c[3];
-			u8     eol_ds;		  /* eol:6,6, ds:5,4 */
-		} long_cdb;	  /* sequencer extension */
-	};
-} __attribute__ ((packed));
-
-struct xfer_rdy_iu {
-	__be32 requested_offset;  /* BE */
-	__be32 write_data_len;	  /* BE */
-	__be32 _r_a;
-} __attribute__ ((packed));
-
+#define EFB_MASK                0x80
+#define TASK_PRIO_MASK          0x78
+#define TASK_ATTR_MASK          0x07
 /* ---------- SCB tasks ---------- */
 
 /* This is both ssp_task and long_ssp_task
@@ -511,7 +474,7 @@ struct abort_task {
 	u8     proto_conn_rate;
 	__le32 _r_a;
 	struct ssp_frame_hdr ssp_frame;
-	struct ssp_task_iu ssp_task;
+	struct ssp_tmf_iu ssp_task;
 	__le16 sister_scb;
 	__le16 conn_handle;
 	u8     flags;	  /* ovrd_itnl_timer:3,3, suspend_data_trans:2,2 */
@@ -549,7 +512,7 @@ struct clear_nexus {
 	u8     _r_b[3];
 	u8     conn_mask;
 	u8     _r_c[19];
-	struct ssp_task_iu ssp_task; /* LUN and TAG */
+	struct ssp_tmf_iu ssp_task; /* LUN and TAG */
 	__le16 _r_d;
 	__le16 conn_handle;
 	__le64 _r_e;
@@ -562,7 +525,7 @@ struct initiate_ssp_tmf {
 	u8     proto_conn_rate;
 	__le32 _r_a;
 	struct ssp_frame_hdr ssp_frame;
-	struct ssp_task_iu ssp_task;
+	struct ssp_tmf_iu ssp_task;
 	__le16 sister_scb;
 	__le16 conn_handle;
 	u8     flags;	  /* itnl override and suspend data tx */
diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index 3bcaaac0ae4b..cf99f8cf4cdd 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -52,7 +52,7 @@ struct device_attribute;
 	#define ARCMSR_MAX_FREECCB_NUM	320
 #define ARCMSR_MAX_OUTSTANDING_CMD	255
 #endif
-#define ARCMSR_DRIVER_VERSION		"v1.30.00.04-20140919"
+#define ARCMSR_DRIVER_VERSION		"v1.30.00.22-20151126"
 #define ARCMSR_SCSI_INITIATOR_ID						255
 #define ARCMSR_MAX_XFER_SECTORS							512
 #define ARCMSR_MAX_XFER_SECTORS_B						4096
@@ -74,6 +74,9 @@ struct device_attribute;
 #ifndef PCI_DEVICE_ID_ARECA_1214
 	#define PCI_DEVICE_ID_ARECA_1214	0x1214
 #endif
+#ifndef PCI_DEVICE_ID_ARECA_1203
+	#define PCI_DEVICE_ID_ARECA_1203	0x1203
+#endif
 /*
 **********************************************************************************
 **
@@ -245,6 +248,12 @@ struct FIRMWARE_INFO
 /* window of "instruction flags" from iop to driver */
 #define ARCMSR_IOP2DRV_DOORBELL                       0x00020408
 #define ARCMSR_IOP2DRV_DOORBELL_MASK                  0x0002040C
+/* window of "instruction flags" from iop to driver */
+#define ARCMSR_IOP2DRV_DOORBELL_1203                  0x00021870
+#define ARCMSR_IOP2DRV_DOORBELL_MASK_1203             0x00021874
+/* window of "instruction flags" from driver to iop */
+#define ARCMSR_DRV2IOP_DOORBELL_1203                  0x00021878
+#define ARCMSR_DRV2IOP_DOORBELL_MASK_1203             0x0002187C
 /* ARECA FLAG LANGUAGE */
 /* ioctl transfer */
 #define ARCMSR_IOP2DRV_DATA_WRITE_OK                  0x00000001
@@ -288,6 +297,9 @@ struct FIRMWARE_INFO
 #define ARCMSR_MESSAGE_RBUFFER			      0x0000ff00
 /* iop message_rwbuffer for message command */
 #define ARCMSR_MESSAGE_RWBUFFER			      0x0000fa00
+
+#define MEM_BASE0(x)	(u32 __iomem *)((unsigned long)acb->mem_base0 + x)
+#define MEM_BASE1(x)	(u32 __iomem *)((unsigned long)acb->mem_base1 + x)
 /* 
 ************************************************************************
 **                SPEC. for Areca HBC adapter
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 333db5953607..7640498964a5 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -114,6 +114,7 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
 static const char *arcmsr_info(struct Scsi_Host *);
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
 static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *);
+static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb);
 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
 {
 	if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
@@ -157,6 +158,8 @@ static struct pci_device_id arcmsr_device_id_table[] = {
 		.driver_data = ACB_ADAPTER_TYPE_B},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202),
 		.driver_data = ACB_ADAPTER_TYPE_B},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1203),
+		.driver_data = ACB_ADAPTER_TYPE_B},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210),
 		.driver_data = ACB_ADAPTER_TYPE_A},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1214),
@@ -495,6 +498,91 @@ static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 	}
 }
 
+static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
+{
+	bool rtn = true;
+	void *dma_coherent;
+	dma_addr_t dma_coherent_handle;
+	struct pci_dev *pdev = acb->pdev;
+
+	switch (acb->adapter_type) {
+	case ACB_ADAPTER_TYPE_B: {
+		struct MessageUnit_B *reg;
+		acb->roundup_ccbsize = roundup(sizeof(struct MessageUnit_B), 32);
+		dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->roundup_ccbsize,
+			&dma_coherent_handle, GFP_KERNEL);
+		if (!dma_coherent) {
+			pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
+			return false;
+		}
+		acb->dma_coherent_handle2 = dma_coherent_handle;
+		acb->dma_coherent2 = dma_coherent;
+		reg = (struct MessageUnit_B *)dma_coherent;
+		acb->pmuB = reg;
+		if (acb->pdev->device == PCI_DEVICE_ID_ARECA_1203) {
+			reg->drv2iop_doorbell = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_1203);
+			reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK_1203);
+			reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_1203);
+			reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK_1203);
+		} else {
+			reg->drv2iop_doorbell = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL);
+			reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK);
+			reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL);
+			reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK);
+		}
+		reg->message_wbuffer = MEM_BASE1(ARCMSR_MESSAGE_WBUFFER);
+		reg->message_rbuffer = MEM_BASE1(ARCMSR_MESSAGE_RBUFFER);
+		reg->message_rwbuffer = MEM_BASE1(ARCMSR_MESSAGE_RWBUFFER);
+		}
+		break;
+	case ACB_ADAPTER_TYPE_D: {
+		struct MessageUnit_D *reg;
+
+		acb->roundup_ccbsize = roundup(sizeof(struct MessageUnit_D), 32);
+		dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->roundup_ccbsize,
+			&dma_coherent_handle, GFP_KERNEL);
+		if (!dma_coherent) {
+			pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
+			return false;
+		}
+		acb->dma_coherent_handle2 = dma_coherent_handle;
+		acb->dma_coherent2 = dma_coherent;
+		reg = (struct MessageUnit_D *)dma_coherent;
+		acb->pmuD = reg;
+		reg->chip_id = MEM_BASE0(ARCMSR_ARC1214_CHIP_ID);
+		reg->cpu_mem_config = MEM_BASE0(ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION);
+		reg->i2o_host_interrupt_mask = MEM_BASE0(ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK);
+		reg->sample_at_reset = MEM_BASE0(ARCMSR_ARC1214_SAMPLE_RESET);
+		reg->reset_request = MEM_BASE0(ARCMSR_ARC1214_RESET_REQUEST);
+		reg->host_int_status = MEM_BASE0(ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS);
+		reg->pcief0_int_enable = MEM_BASE0(ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE);
+		reg->inbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE0);
+		reg->inbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE1);
+		reg->outbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE0);
+		reg->outbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE1);
+		reg->inbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_INBOUND_DOORBELL);
+		reg->outbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL);
+		reg->outbound_doorbell_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE);
+		reg->inboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW);
+		reg->inboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH);
+		reg->inboundlist_write_pointer = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER);
+		reg->outboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW);
+		reg->outboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH);
+		reg->outboundlist_copy_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER);
+		reg->outboundlist_read_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER);
+		reg->outboundlist_interrupt_cause = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE);
+		reg->outboundlist_interrupt_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE);
+		reg->message_wbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_WBUFFER);
+		reg->message_rbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RBUFFER);
+		reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);
+		}
+		break;
+	default:
+		break;
+	}
+	return rtn;
+}
+
 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 {
 	struct pci_dev *pdev = acb->pdev;
@@ -739,9 +827,12 @@ static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if(!error){
 		goto pci_release_regs;
 	}
+	error = arcmsr_alloc_io_queue(acb);
+	if (!error)
+		goto unmap_pci_region;
 	error = arcmsr_get_firmware_spec(acb);
 	if(!error){
-		goto unmap_pci_region;
+		goto free_hbb_mu;
 	}
 	error = arcmsr_alloc_ccb_pool(acb);
 	if(error){
@@ -2622,9 +2713,6 @@ static bool arcmsr_hbaA_get_config(struct AdapterControlBlock *acb)
 static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
 {
 	struct MessageUnit_B *reg = acb->pmuB;
-	struct pci_dev *pdev = acb->pdev;
-	void *dma_coherent;
-	dma_addr_t dma_coherent_handle;
 	char *acb_firm_model = acb->firm_model;
 	char *acb_firm_version = acb->firm_version;
 	char *acb_device_map = acb->device_map;
@@ -2636,30 +2724,16 @@ static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
 	/*firm_version,21,84-99*/
 	int count;
 
-	acb->roundup_ccbsize = roundup(sizeof(struct MessageUnit_B), 32);
-	dma_coherent = dma_alloc_coherent(&pdev->dev, acb->roundup_ccbsize,
-			&dma_coherent_handle, GFP_KERNEL);
-	if (!dma_coherent){
-		printk(KERN_NOTICE
-			"arcmsr%d: dma_alloc_coherent got error for hbb mu\n",
-			acb->host->host_no);
-		return false;
-	}
-	acb->dma_coherent_handle2 = dma_coherent_handle;
-	acb->dma_coherent2 = dma_coherent;
-	reg = (struct MessageUnit_B *)dma_coherent;
-	acb->pmuB = reg;
-	reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
-	reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
-	reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
-	reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
-	reg->message_wbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
-	reg->message_rbuffer =  (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
-	reg->message_rwbuffer = (uint32_t __iomem *)((unsigned long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
 	iop_firm_model = (char __iomem *)(&reg->message_rwbuffer[15]);	/*firm_model,15,60-67*/
 	iop_firm_version = (char __iomem *)(&reg->message_rwbuffer[17]);	/*firm_version,17,68-83*/
 	iop_device_map = (char __iomem *)(&reg->message_rwbuffer[21]);	/*firm_version,21,84-99*/
 
+	arcmsr_wait_firmware_ready(acb);
+	writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
+	if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
+		printk(KERN_ERR "arcmsr%d: can't set driver mode.\n", acb->host->host_no);
+		return false;
+	}
 	writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
 	if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
 		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
@@ -2694,15 +2768,15 @@ static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
 		acb->firm_model,
 		acb->firm_version);
 
-	acb->signature = readl(&reg->message_rwbuffer[1]);
+	acb->signature = readl(&reg->message_rwbuffer[0]);
 	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->message_rwbuffer[2]);
+	acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
 	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[3]);
+	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
 	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->message_rwbuffer[4]);
+	acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
 	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->message_rwbuffer[5]);
+	acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
 	/*firm_ide_channels,4,16-19*/
 	acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
 	/*firm_ide_channels,4,16-19*/
@@ -2777,70 +2851,8 @@ static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
 	char __iomem *iop_firm_version;
 	char __iomem *iop_device_map;
 	u32 count;
-	struct MessageUnit_D *reg;
-	void *dma_coherent2;
-	dma_addr_t dma_coherent_handle2;
-	struct pci_dev *pdev = acb->pdev;
+	struct MessageUnit_D *reg = acb->pmuD;
 
-	acb->roundup_ccbsize = roundup(sizeof(struct MessageUnit_D), 32);
-	dma_coherent2 = dma_alloc_coherent(&pdev->dev, acb->roundup_ccbsize,
-		&dma_coherent_handle2, GFP_KERNEL);
-	if (!dma_coherent2) {
-		pr_notice("DMA allocation failed...\n");
-		return false;
-	}
-	memset(dma_coherent2, 0, acb->roundup_ccbsize);
-	acb->dma_coherent_handle2 = dma_coherent_handle2;
-	acb->dma_coherent2 = dma_coherent2;
-	reg = (struct MessageUnit_D *)dma_coherent2;
-	acb->pmuD = reg;
-	reg->chip_id = acb->mem_base0 + ARCMSR_ARC1214_CHIP_ID;
-	reg->cpu_mem_config = acb->mem_base0 +
-		ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION;
-	reg->i2o_host_interrupt_mask = acb->mem_base0 +
-		ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK;
-	reg->sample_at_reset = acb->mem_base0 + ARCMSR_ARC1214_SAMPLE_RESET;
-	reg->reset_request = acb->mem_base0 + ARCMSR_ARC1214_RESET_REQUEST;
-	reg->host_int_status = acb->mem_base0 +
-		ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS;
-	reg->pcief0_int_enable = acb->mem_base0 +
-		ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE;
-	reg->inbound_msgaddr0 = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_MESSAGE0;
-	reg->inbound_msgaddr1 = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_MESSAGE1;
-	reg->outbound_msgaddr0 = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_MESSAGE0;
-	reg->outbound_msgaddr1 = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_MESSAGE1;
-	reg->inbound_doorbell = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_DOORBELL;
-	reg->outbound_doorbell = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_DOORBELL;
-	reg->outbound_doorbell_enable = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE;
-	reg->inboundlist_base_low = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW;
-	reg->inboundlist_base_high = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH;
-	reg->inboundlist_write_pointer = acb->mem_base0 +
-		ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER;
-	reg->outboundlist_base_low = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW;
-	reg->outboundlist_base_high = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH;
-	reg->outboundlist_copy_pointer = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER;
-	reg->outboundlist_read_pointer = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER;
-	reg->outboundlist_interrupt_cause = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE;
-	reg->outboundlist_interrupt_enable = acb->mem_base0 +
-		ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE;
-	reg->message_wbuffer = acb->mem_base0 + ARCMSR_ARC1214_MESSAGE_WBUFFER;
-	reg->message_rbuffer = acb->mem_base0 + ARCMSR_ARC1214_MESSAGE_RBUFFER;
-	reg->msgcode_rwbuffer = acb->mem_base0 +
-		ARCMSR_ARC1214_MESSAGE_RWBUFFER;
 	iop_firm_model = (char __iomem *)(&reg->msgcode_rwbuffer[15]);
 	iop_firm_version = (char __iomem *)(&reg->msgcode_rwbuffer[17]);
 	iop_device_map = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
@@ -2855,8 +2867,6 @@ static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
 	if (!arcmsr_hbaD_wait_msgint_ready(acb)) {
 		pr_notice("arcmsr%d: wait get adapter firmware "
 			"miscellaneous data timeout\n", acb->host->host_no);
-		dma_free_coherent(&acb->pdev->dev, acb->roundup_ccbsize,
-			acb->dma_coherent2, acb->dma_coherent_handle2);
 		return false;
 	}
 	count = 8;
@@ -2880,15 +2890,15 @@ static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
 		iop_device_map++;
 		count--;
 	}
-	acb->signature = readl(&reg->msgcode_rwbuffer[1]);
+	acb->signature = readl(&reg->msgcode_rwbuffer[0]);
 	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->msgcode_rwbuffer[2]);
+	acb->firm_request_len = readl(&reg->msgcode_rwbuffer[1]);
 	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[3]);
+	acb->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[2]);
 	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->msgcode_rwbuffer[4]);
+	acb->firm_sdram_size = readl(&reg->msgcode_rwbuffer[3]);
 	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->msgcode_rwbuffer[5]);
+	acb->firm_hd_channels = readl(&reg->msgcode_rwbuffer[4]);
 	/*firm_hd_channels,4,16-19*/
 	acb->firm_cfg_version = readl(&reg->msgcode_rwbuffer[25]);
 	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
@@ -3998,6 +4008,7 @@ static const char *arcmsr_info(struct Scsi_Host *host)
 	case PCI_DEVICE_ID_ARECA_1160:
 	case PCI_DEVICE_ID_ARECA_1170:
 	case PCI_DEVICE_ID_ARECA_1201:
+	case PCI_DEVICE_ID_ARECA_1203:
 	case PCI_DEVICE_ID_ARECA_1220:
 	case PCI_DEVICE_ID_ARECA_1230:
 	case PCI_DEVICE_ID_ARECA_1260:
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 05301bc752ee..8b52a9dbb9cf 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -41,77 +41,128 @@
 
 static struct scsi_host_template atp870u_template;
 static void send_s870(struct atp_unit *dev,unsigned char c);
-static void is885(struct atp_unit *dev, unsigned int wkport,unsigned char c);
-static void tscam_885(void);
+static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode);
+
+static inline void atp_writeb_base(struct atp_unit *atp, u8 reg, u8 val)
+{
+	outb(val, atp->baseport + reg);
+}
+
+static inline void atp_writew_base(struct atp_unit *atp, u8 reg, u16 val)
+{
+	outw(val, atp->baseport + reg);
+}
+
+static inline void atp_writeb_io(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
+{
+	outb(val, atp->ioport[channel] + reg);
+}
+
+static inline void atp_writew_io(struct atp_unit *atp, u8 channel, u8 reg, u16 val)
+{
+	outw(val, atp->ioport[channel] + reg);
+}
+
+static inline void atp_writeb_pci(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
+{
+	outb(val, atp->pciport[channel] + reg);
+}
+
+static inline void atp_writel_pci(struct atp_unit *atp, u8 channel, u8 reg, u32 val)
+{
+	outl(val, atp->pciport[channel] + reg);
+}
+
+static inline u8 atp_readb_base(struct atp_unit *atp, u8 reg)
+{
+	return inb(atp->baseport + reg);
+}
+
+static inline u16 atp_readw_base(struct atp_unit *atp, u8 reg)
+{
+	return inw(atp->baseport + reg);
+}
+
+static inline u32 atp_readl_base(struct atp_unit *atp, u8 reg)
+{
+	return inl(atp->baseport + reg);
+}
+
+static inline u8 atp_readb_io(struct atp_unit *atp, u8 channel, u8 reg)
+{
+	return inb(atp->ioport[channel] + reg);
+}
+
+static inline u16 atp_readw_io(struct atp_unit *atp, u8 channel, u8 reg)
+{
+	return inw(atp->ioport[channel] + reg);
+}
+
+static inline u8 atp_readb_pci(struct atp_unit *atp, u8 channel, u8 reg)
+{
+	return inb(atp->pciport[channel] + reg);
+}
+
+static inline bool is880(struct atp_unit *atp)
+{
+	return atp->pdev->device == ATP880_DEVID1 ||
+	       atp->pdev->device == ATP880_DEVID2;
+}
+
+static inline bool is885(struct atp_unit *atp)
+{
+	return atp->pdev->device == ATP885_DEVID;
+}
 
 static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
 {
 	unsigned long flags;
-	unsigned short int tmpcip, id;
+	unsigned short int id;
 	unsigned char i, j, c, target_id, lun,cmdp;
 	unsigned char *prd;
 	struct scsi_cmnd *workreq;
-	unsigned int workport, tmport, tmport1;
 	unsigned long adrcnt, k;
 #ifdef ED_DBGP
 	unsigned long l;
 #endif
-	int errstus;
 	struct Scsi_Host *host = dev_id;
 	struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
 
 	for (c = 0; c < 2; c++) {
-		tmport = dev->ioport[c] + 0x1f;
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x1f);
 		if ((j & 0x80) != 0)
-		{			
-	   		goto ch_sel;
-		}
+			break;
 		dev->in_int[c] = 0;
 	}
-	return IRQ_NONE;
-ch_sel:
+	if ((j & 0x80) == 0)
+		return IRQ_NONE;
 #ifdef ED_DBGP	
 	printk("atp870u_intr_handle enter\n");
 #endif	
 	dev->in_int[c] = 1;
-	cmdp = inb(dev->ioport[c] + 0x10);
-	workport = dev->ioport[c];
+	cmdp = atp_readb_io(dev, c, 0x10);
 	if (dev->working[c] != 0) {
-		if (dev->dev_id == ATP885_DEVID) {
-			tmport1 = workport + 0x16;
-			if ((inb(tmport1) & 0x80) == 0)
-				outb((inb(tmport1) | 0x80), tmport1);
+		if (is885(dev)) {
+			if ((atp_readb_io(dev, c, 0x16) & 0x80) == 0)
+				atp_writeb_io(dev, c, 0x16, (atp_readb_io(dev, c, 0x16) | 0x80));
 		}		
-		tmpcip = dev->pciport[c];
-		if ((inb(tmpcip) & 0x08) != 0)
+		if ((atp_readb_pci(dev, c, 0x00) & 0x08) != 0)
 		{
-			tmpcip += 0x2;
 			for (k=0; k < 1000; k++) {
-				if ((inb(tmpcip) & 0x08) == 0) {
-					goto stop_dma;
-				}
-				if ((inb(tmpcip) & 0x01) == 0) {
-					goto stop_dma;
-				}
+				if ((atp_readb_pci(dev, c, 2) & 0x08) == 0)
+					break;
+				if ((atp_readb_pci(dev, c, 2) & 0x01) == 0)
+					break;
 			}
 		}
-stop_dma:
-		tmpcip = dev->pciport[c];
-		outb(0x00, tmpcip);
-		tmport -= 0x08;
+		atp_writeb_pci(dev, c, 0, 0x00);
 		
-		i = inb(tmport);
+		i = atp_readb_io(dev, c, 0x17);
 		
-		if (dev->dev_id == ATP885_DEVID) {
-			tmpcip += 2;
-			outb(0x06, tmpcip);
-			tmpcip -= 2;
-		}
+		if (is885(dev))
+			atp_writeb_pci(dev, c, 2, 0x06);
 
-		tmport -= 0x02;
-		target_id = inb(tmport);
-		tmport += 0x02;
+		target_id = atp_readb_io(dev, c, 0x15);
 
 		/*
 		 *	Remap wide devices onto id numbers
@@ -129,7 +180,7 @@ stop_dma:
 		     }
 		     dev->last_cmd[c] |= 0x40;
 		}
-		if (dev->dev_id == ATP885_DEVID) 
+		if (is885(dev))
 			dev->r1f[c][target_id] |= j;
 #ifdef ED_DBGP
 		printk("atp870u_intr_handle status = %x\n",i);
@@ -138,12 +189,11 @@ stop_dma:
 			if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 			   dev->last_cmd[c] = 0xff;
 			}
-			if (dev->dev_id == ATP885_DEVID) {
-				tmport -= 0x05;
+			if (is885(dev)) {
 				adrcnt = 0;
-				((unsigned char *) &adrcnt)[2] = inb(tmport++);
-				((unsigned char *) &adrcnt)[1] = inb(tmport++);
-				((unsigned char *) &adrcnt)[0] = inb(tmport);
+				((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
+				((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
+				((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
 				if (dev->id[c][target_id].last_len != adrcnt)
 				{
 			   		k = dev->id[c][target_id].last_len;
@@ -152,7 +202,7 @@ stop_dma:
 			   	dev->id[c][target_id].last_len = adrcnt;			   
 				}
 #ifdef ED_DBGP
-				printk("tmport = %x dev->id[c][target_id].last_len = %d dev->id[c][target_id].tran_len = %d\n",tmport,dev->id[c][target_id].last_len,dev->id[c][target_id].tran_len);
+				printk("dev->id[c][target_id].last_len = %d dev->id[c][target_id].tran_len = %d\n",dev->id[c][target_id].last_len,dev->id[c][target_id].tran_len);
 #endif		
 			}
 
@@ -160,11 +210,9 @@ stop_dma:
 			 *      Flip wide
 			 */			
 			if (dev->wide_id[c] != 0) {
-				tmport = workport + 0x1b;
-				outb(0x01, tmport);
-				while ((inb(tmport) & 0x01) != 0x01) {
-					outb(0x01, tmport);
-				}
+				atp_writeb_io(dev, c, 0x1b, 0x01);
+				while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
+					atp_writeb_io(dev, c, 0x1b, 0x01);
 			}		
 			/*
 			 *	Issue more commands
@@ -185,37 +233,34 @@ stop_dma:
 #ifdef ED_DBGP
 				printk("Status 0x85 return\n");
 #endif				
-			goto handled;
+			return IRQ_HANDLED;
 		}
 
 		if (i == 0x40) {
 		     dev->last_cmd[c] |= 0x40;
 		     dev->in_int[c] = 0;
-		     goto handled;
+		     return IRQ_HANDLED;
 		}
 
 		if (i == 0x21) {
 			if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 			   dev->last_cmd[c] = 0xff;
 			}
-			tmport -= 0x05;
 			adrcnt = 0;
-			((unsigned char *) &adrcnt)[2] = inb(tmport++);
-			((unsigned char *) &adrcnt)[1] = inb(tmport++);
-			((unsigned char *) &adrcnt)[0] = inb(tmport);
+			((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
+			((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
+			((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
 			k = dev->id[c][target_id].last_len;
 			k -= adrcnt;
 			dev->id[c][target_id].tran_len = k;
 			dev->id[c][target_id].last_len = adrcnt;
-			tmport -= 0x04;
-			outb(0x41, tmport);
-			tmport += 0x08;
-			outb(0x08, tmport);
+			atp_writeb_io(dev, c, 0x10, 0x41);
+			atp_writeb_io(dev, c, 0x18, 0x08);
 			dev->in_int[c] = 0;
-			goto handled;
+			return IRQ_HANDLED;
 		}
 
-		if (dev->dev_id == ATP885_DEVID) {
+		if (is885(dev)) {
 			if ((i == 0x4c) || (i == 0x4d) || (i == 0x8c) || (i == 0x8d)) {
 		   		if ((i == 0x4c) || (i == 0x8c)) 
 		      			i=0x48;
@@ -229,11 +274,9 @@ stop_dma:
 			printk(KERN_DEBUG "Device reselect\n");
 #endif			
 			lun = 0;
-			tmport -= 0x07;
-			if (cmdp == 0x44 || i==0x80) {
-				tmport += 0x0d;
-				lun = inb(tmport) & 0x07;
-			} else {
+			if (cmdp == 0x44 || i == 0x80)
+				lun = atp_readb_io(dev, c, 0x1d) & 0x07;
+			else {
 				if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 				   dev->last_cmd[c] = 0xff;
 				}
@@ -241,49 +284,41 @@ stop_dma:
 #ifdef ED_DBGP
 					printk("cmdp = 0x41\n");
 #endif						
-					tmport += 0x02;
 					adrcnt = 0;
-					((unsigned char *) &adrcnt)[2] = inb(tmport++);
-					((unsigned char *) &adrcnt)[1] = inb(tmport++);
-					((unsigned char *) &adrcnt)[0] = inb(tmport);
+					((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
+					((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
+					((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
 					k = dev->id[c][target_id].last_len;
 					k -= adrcnt;
 					dev->id[c][target_id].tran_len = k;
 					dev->id[c][target_id].last_len = adrcnt;
-					tmport += 0x04;
-					outb(0x08, tmport);
+					atp_writeb_io(dev, c, 0x18, 0x08);
 					dev->in_int[c] = 0;
-					goto handled;
+					return IRQ_HANDLED;
 				} else {
 #ifdef ED_DBGP
 					printk("cmdp != 0x41\n");
 #endif						
-					outb(0x46, tmport);
+					atp_writeb_io(dev, c, 0x10, 0x46);
 					dev->id[c][target_id].dirct = 0x00;
-					tmport += 0x02;
-					outb(0x00, tmport++);
-					outb(0x00, tmport++);
-					outb(0x00, tmport++);
-					tmport += 0x03;
-					outb(0x08, tmport);
+					atp_writeb_io(dev, c, 0x12, 0x00);
+					atp_writeb_io(dev, c, 0x13, 0x00);
+					atp_writeb_io(dev, c, 0x14, 0x00);
+					atp_writeb_io(dev, c, 0x18, 0x08);
 					dev->in_int[c] = 0;
-					goto handled;
+					return IRQ_HANDLED;
 				}
 			}
 			if (dev->last_cmd[c] != 0xff) {
 			   dev->last_cmd[c] |= 0x40;
 			}
-			if (dev->dev_id == ATP885_DEVID) {
-				j = inb(dev->baseport + 0x29) & 0xfe;
-				outb(j, dev->baseport + 0x29);
-				tmport = workport + 0x16;
-			} else {
-				tmport = workport + 0x10;
-				outb(0x45, tmport);
-				tmport += 0x06;				
-			}
-			
-			target_id = inb(tmport);
+			if (is885(dev)) {
+				j = atp_readb_base(dev, 0x29) & 0xfe;
+				atp_writeb_base(dev, 0x29, j);
+			} else
+				atp_writeb_io(dev, c, 0x10, 0x45);
+
+			target_id = atp_readb_io(dev, c, 0x16);
 			/*
 			 *	Remap wide identifiers
 			 */
@@ -292,10 +327,8 @@ stop_dma:
 			} else {
 				target_id &= 0x07;
 			}
-			if (dev->dev_id == ATP885_DEVID) {
-				tmport = workport + 0x10;
-				outb(0x45, tmport);
-			}
+			if (is885(dev))
+				atp_writeb_io(dev, c, 0x10, 0x45);
 			workreq = dev->id[c][target_id].curr_req;
 #ifdef ED_DBGP			
 			scmd_printk(KERN_DEBUG, workreq, "CDB");
@@ -304,18 +337,16 @@ stop_dma:
 			printk("\n");
 #endif	
 			
-			tmport = workport + 0x0f;
-			outb(lun, tmport);
-			tmport += 0x02;
-			outb(dev->id[c][target_id].devsp, tmport++);
+			atp_writeb_io(dev, c, 0x0f, lun);
+			atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
 			adrcnt = dev->id[c][target_id].tran_len;
 			k = dev->id[c][target_id].last_len;
 
-			outb(((unsigned char *) &k)[2], tmport++);
-			outb(((unsigned char *) &k)[1], tmport++);
-			outb(((unsigned char *) &k)[0], tmport++);
+			atp_writeb_io(dev, c, 0x12, ((unsigned char *) &k)[2]);
+			atp_writeb_io(dev, c, 0x13, ((unsigned char *) &k)[1]);
+			atp_writeb_io(dev, c, 0x14, ((unsigned char *) &k)[0]);
 #ifdef ED_DBGP			
-			printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k, inb(tmport-1), inb(tmport-2), inb(tmport-3));
+			printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k, atp_readb_io(dev, c, 0x14), atp_readb_io(dev, c, 0x13), atp_readb_io(dev, c, 0x12));
 #endif			
 			/* Remap wide */
 			j = target_id;
@@ -324,35 +355,28 @@ stop_dma:
 			}
 			/* Add direction */
 			j |= dev->id[c][target_id].dirct;
-			outb(j, tmport++);
-			outb(0x80,tmport);
+			atp_writeb_io(dev, c, 0x15, j);
+			atp_writeb_io(dev, c, 0x16, 0x80);
 			
 			/* enable 32 bit fifo transfer */	
-			if (dev->dev_id == ATP885_DEVID) {
-				tmpcip = dev->pciport[c] + 1;
-				i=inb(tmpcip) & 0xf3;
+			if (is885(dev)) {
+				i = atp_readb_pci(dev, c, 1) & 0xf3;
 				//j=workreq->cmnd[0];	    		    	
 				if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
 				   i |= 0x0c;
 				}
-				outb(i,tmpcip);		    		    		
-			} else if ((dev->dev_id == ATP880_DEVID1) ||
-	    		    	   (dev->dev_id == ATP880_DEVID2) ) {
-				tmport = workport - 0x05;
-				if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
-					outb((unsigned char) ((inb(tmport) & 0x3f) | 0xc0), tmport);
-				} else {
-					outb((unsigned char) (inb(tmport) & 0x3f), tmport);
-				}
+				atp_writeb_pci(dev, c, 1, i);
+			} else if (is880(dev)) {
+				if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
+					atp_writeb_base(dev, 0x3b, (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
+				else
+					atp_writeb_base(dev, 0x3b, atp_readb_base(dev, 0x3b) & 0x3f);
 			} else {				
-				tmport = workport + 0x3a;
-				if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
-					outb((unsigned char) ((inb(tmport) & 0xf3) | 0x08), tmport);
-				} else {
-					outb((unsigned char) (inb(tmport) & 0xf3), tmport);
-				}														
+				if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
+					atp_writeb_base(dev, 0x3a, (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
+				else
+					atp_writeb_base(dev, 0x3a, atp_readb_base(dev, 0x3a) & 0xf3);
 			}	
-			tmport = workport + 0x1b;
 			j = 0;
 			id = 1;
 			id = id << target_id;
@@ -362,18 +386,16 @@ stop_dma:
 			if ((id & dev->wide_id[c]) != 0) {
 				j |= 0x01;
 			}
-			outb(j, tmport);
-			while ((inb(tmport) & 0x01) != j) {
-				outb(j,tmport);
-			}
+			atp_writeb_io(dev, c, 0x1b, j);
+			while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j)
+				atp_writeb_io(dev, c, 0x1b, j);
 			if (dev->id[c][target_id].last_len == 0) {
-				tmport = workport + 0x18;
-				outb(0x08, tmport);
+				atp_writeb_io(dev, c, 0x18, 0x08);
 				dev->in_int[c] = 0;
 #ifdef ED_DBGP
 				printk("dev->id[c][target_id].last_len = 0\n");
 #endif					
-				goto handled;
+				return IRQ_HANDLED;
 			}
 #ifdef ED_DBGP
 			printk("target_id = %d adrcnt = %d\n",target_id,adrcnt);
@@ -401,39 +423,33 @@ stop_dma:
 					}
 				}				
 			}
-			tmpcip = dev->pciport[c] + 0x04;
-			outl(dev->id[c][target_id].prdaddr, tmpcip);
+			atp_writel_pci(dev, c, 0x04, dev->id[c][target_id].prdaddr);
 #ifdef ED_DBGP
 			printk("dev->id[%d][%d].prdaddr 0x%8x\n", c, target_id, dev->id[c][target_id].prdaddr);
 #endif
-			if (dev->dev_id == ATP885_DEVID) {
-				tmpcip -= 0x04;
-			} else {
-				tmpcip -= 0x02;
-				outb(0x06, tmpcip);
-				outb(0x00, tmpcip);
-				tmpcip -= 0x02;
+			if (!is885(dev)) {
+				atp_writeb_pci(dev, c, 2, 0x06);
+				atp_writeb_pci(dev, c, 2, 0x00);
 			}
-			tmport = workport + 0x18;
 			/*
 			 *	Check transfer direction
 			 */
 			if (dev->id[c][target_id].dirct != 0) {
-				outb(0x08, tmport);
-				outb(0x01, tmpcip);
+				atp_writeb_io(dev, c, 0x18, 0x08);
+				atp_writeb_pci(dev, c, 0, 0x01);
 				dev->in_int[c] = 0;
 #ifdef ED_DBGP
 				printk("status 0x80 return dirct != 0\n");
 #endif				
-				goto handled;
+				return IRQ_HANDLED;
 			}
-			outb(0x08, tmport);
-			outb(0x09, tmpcip);
+			atp_writeb_io(dev, c, 0x18, 0x08);
+			atp_writeb_pci(dev, c, 0, 0x09);
 			dev->in_int[c] = 0;
 #ifdef ED_DBGP
 			printk("status 0x80 return dirct = 0\n");
 #endif			
-			goto handled;
+			return IRQ_HANDLED;
 		}
 
 		/*
@@ -442,31 +458,22 @@ stop_dma:
 
 		workreq = dev->id[c][target_id].curr_req;
 
-		if (i == 0x42) {
-			if ((dev->last_cmd[c] & 0xf0) != 0x40)
-			{
-			   dev->last_cmd[c] = 0xff;
-			}
-			errstus = 0x02;
-			workreq->result = errstus;
-			goto go_42;
-		}
-		if (i == 0x16) {
+		if (i == 0x42 || i == 0x16) {
 			if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 			   dev->last_cmd[c] = 0xff;
 			}
-			errstus = 0;
-			tmport -= 0x08;
-			errstus = inb(tmport);
-			if (((dev->r1f[c][target_id] & 0x10) != 0)&&(dev->dev_id==ATP885_DEVID)) {
-			   printk(KERN_WARNING "AEC67162 CRC ERROR !\n");
-			   errstus = 0x02;
-			}
-			workreq->result = errstus;
-go_42:
-			if (dev->dev_id == ATP885_DEVID) {		
-				j = inb(dev->baseport + 0x29) | 0x01;
-				outb(j, dev->baseport + 0x29);
+			if (i == 0x16) {
+				workreq->result = atp_readb_io(dev, c, 0x0f);
+				if (((dev->r1f[c][target_id] & 0x10) != 0) && is885(dev)) {
+					printk(KERN_WARNING "AEC67162 CRC ERROR !\n");
+					workreq->result = 0x02;
+				}
+			} else
+				workreq->result = 0x02;
+
+			if (is885(dev)) {
+				j = atp_readb_base(dev, 0x29) | 0x01;
+				atp_writeb_base(dev, 0x29, j);
 			}
 			/*
 			 *	Complete the command
@@ -488,11 +495,9 @@ go_42:
 			 *      Take it back wide
 			 */
 			if (dev->wide_id[c] != 0) {
-				tmport = workport + 0x1b;
-				outb(0x01, tmport);
-				while ((inb(tmport) & 0x01) != 0x01) {
-					outb(0x01, tmport);
-				}       
+				atp_writeb_io(dev, c, 0x1b, 0x01);
+				while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
+					atp_writeb_io(dev, c, 0x1b, 0x01);
 			} 
 			/*
 			 *	If there is stuff to send and nothing going then send it
@@ -507,7 +512,7 @@ go_42:
 			}
 			spin_unlock_irqrestore(dev->host->host_lock, flags);
 			dev->in_int[c] = 0;
-			goto handled;
+			return IRQ_HANDLED;
 		}
 		if ((dev->last_cmd[c] & 0xf0) != 0x40) {
 		   dev->last_cmd[c] = 0xff;
@@ -517,84 +522,54 @@ go_42:
 		}
 		i &= 0x0f;
 		if (i == 0x09) {
-			tmpcip += 4;
-			outl(dev->id[c][target_id].prdaddr, tmpcip);
-			tmpcip = tmpcip - 2;
-			outb(0x06, tmpcip);
-			outb(0x00, tmpcip);
-			tmpcip = tmpcip - 2;
-			tmport = workport + 0x10;
-			outb(0x41, tmport);
-			if (dev->dev_id == ATP885_DEVID) {
-				tmport += 2;
+			atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
+			atp_writeb_pci(dev, c, 2, 0x06);
+			atp_writeb_pci(dev, c, 2, 0x00);
+			atp_writeb_io(dev, c, 0x10, 0x41);
+			if (is885(dev)) {
 				k = dev->id[c][target_id].last_len;
-				outb((unsigned char) (((unsigned char *) (&k))[2]), tmport++);
-				outb((unsigned char) (((unsigned char *) (&k))[1]), tmport++);
-				outb((unsigned char) (((unsigned char *) (&k))[0]), tmport);
+				atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&k))[2]);
+				atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&k))[1]);
+				atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&k))[0]);
 				dev->id[c][target_id].dirct = 0x00;
-				tmport += 0x04;
 			} else {
 				dev->id[c][target_id].dirct = 0x00;
-				tmport += 0x08;				
 			}
-			outb(0x08, tmport);
-			outb(0x09, tmpcip);
+			atp_writeb_io(dev, c, 0x18, 0x08);
+			atp_writeb_pci(dev, c, 0, 0x09);
 			dev->in_int[c] = 0;
-			goto handled;
+			return IRQ_HANDLED;
 		}
 		if (i == 0x08) {
-			tmpcip += 4;
-			outl(dev->id[c][target_id].prdaddr, tmpcip);
-			tmpcip = tmpcip - 2;
-			outb(0x06, tmpcip);
-			outb(0x00, tmpcip);
-			tmpcip = tmpcip - 2;
-			tmport = workport + 0x10;
-			outb(0x41, tmport);
-			if (dev->dev_id == ATP885_DEVID) {		
-				tmport += 2;
+			atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
+			atp_writeb_pci(dev, c, 2, 0x06);
+			atp_writeb_pci(dev, c, 2, 0x00);
+			atp_writeb_io(dev, c, 0x10, 0x41);
+			if (is885(dev)) {
 				k = dev->id[c][target_id].last_len;
-				outb((unsigned char) (((unsigned char *) (&k))[2]), tmport++);
-				outb((unsigned char) (((unsigned char *) (&k))[1]), tmport++);
-				outb((unsigned char) (((unsigned char *) (&k))[0]), tmport++);
-			} else {
-				tmport += 5;
+				atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&k))[2]);
+				atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&k))[1]);
+				atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&k))[0]);
 			}
-			outb((unsigned char) (inb(tmport) | 0x20), tmport);
+			atp_writeb_io(dev, c, 0x15, atp_readb_io(dev, c, 0x15) | 0x20);
 			dev->id[c][target_id].dirct = 0x20;
-			tmport += 0x03;
-			outb(0x08, tmport);
-			outb(0x01, tmpcip);
+			atp_writeb_io(dev, c, 0x18, 0x08);
+			atp_writeb_pci(dev, c, 0, 0x01);
 			dev->in_int[c] = 0;
-			goto handled;
-		}
-		tmport -= 0x07;
-		if (i == 0x0a) {
-			outb(0x30, tmport);
-		} else {
-			outb(0x46, tmport);
+			return IRQ_HANDLED;
 		}
+		if (i == 0x0a)
+			atp_writeb_io(dev, c, 0x10, 0x30);
+		else
+			atp_writeb_io(dev, c, 0x10, 0x46);
 		dev->id[c][target_id].dirct = 0x00;
-		tmport += 0x02;
-		outb(0x00, tmport++);
-		outb(0x00, tmport++);
-		outb(0x00, tmport++);
-		tmport += 0x03;
-		outb(0x08, tmport);
-		dev->in_int[c] = 0;
-		goto handled;
-	} else {
-//		tmport = workport + 0x17;
-//		inb(tmport);
-//		dev->working[c] = 0;
-		dev->in_int[c] = 0;
-		goto handled;
+		atp_writeb_io(dev, c, 0x12, 0x00);
+		atp_writeb_io(dev, c, 0x13, 0x00);
+		atp_writeb_io(dev, c, 0x14, 0x00);
+		atp_writeb_io(dev, c, 0x18, 0x08);
 	}
-	
-handled:
-#ifdef ED_DBGP
-	printk("atp870u_intr_handle exit\n");
-#endif			
+	dev->in_int[c] = 0;
+
 	return IRQ_HANDLED;
 }
 /**
@@ -608,7 +583,7 @@ static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
 			 void (*done) (struct scsi_cmnd *))
 {
 	unsigned char c;
-	unsigned int tmport,m;	
+	unsigned int m;
 	struct atp_unit *dev;
 	struct Scsi_Host *host;
 
@@ -677,11 +652,10 @@ static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
 		return 0;
 	}
 	dev->quereq[c][dev->quend[c]] = req_p;
-	tmport = dev->ioport[c] + 0x1c;
 #ifdef ED_DBGP	
-	printk("dev->ioport[c] = %x inb(tmport) = %x dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",dev->ioport[c],inb(tmport),c,dev->in_int[c],c,dev->in_snd[c]);
+	printk("dev->ioport[c] = %x atp_readb_io(dev, c, 0x1c) = %x dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",dev->ioport[c],atp_readb_io(dev, c, 0x1c),c,dev->in_int[c],c,dev->in_snd[c]);
 #endif
-	if ((inb(tmport) == 0) && (dev->in_int[c] == 0) && (dev->in_snd[c] == 0)) {
+	if ((atp_readb_io(dev, c, 0x1c) == 0) && (dev->in_int[c] == 0) && (dev->in_snd[c] == 0)) {
 #ifdef ED_DBGP
 		printk("Call sent_s870(atp870u_queuecommand)\n");
 #endif		
@@ -706,14 +680,12 @@ static DEF_SCSI_QCMD(atp870u_queuecommand)
  */
 static void send_s870(struct atp_unit *dev,unsigned char c)
 {
-	unsigned int tmport;
-	struct scsi_cmnd *workreq;
+	struct scsi_cmnd *workreq = NULL;
 	unsigned int i;//,k;
 	unsigned char  j, target_id;
 	unsigned char *prd;
-	unsigned short int tmpcip, w;
+	unsigned short int w;
 	unsigned long l, bttl = 0;
-	unsigned int workport;
 	unsigned long  sg_count;
 
 	if (dev->in_snd[c] != 0) {
@@ -729,53 +701,42 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
 	if ((dev->last_cmd[c] != 0xff) && ((dev->last_cmd[c] & 0x40) != 0)) {
 		dev->last_cmd[c] &= 0x0f;
 		workreq = dev->id[c][dev->last_cmd[c]].curr_req;
-		if (workreq != NULL) {	/* check NULL pointer */
-		   goto cmd_subp;
-		}
-		dev->last_cmd[c] = 0xff;	
-		if (dev->quhd[c] == dev->quend[c]) {
-		   	dev->in_snd[c] = 0;
-		   	return ;
+		if (!workreq) {
+			dev->last_cmd[c] = 0xff;
+			if (dev->quhd[c] == dev->quend[c]) {
+				dev->in_snd[c] = 0;
+				return;
+			}
 		}
 	}
-	if ((dev->last_cmd[c] != 0xff) && (dev->working[c] != 0)) {
-	     	dev->in_snd[c] = 0;
-	     	return ;
-	}
-	dev->working[c]++;
-	j = dev->quhd[c];
-	dev->quhd[c]++;
-	if (dev->quhd[c] >= qcnt) {
-		dev->quhd[c] = 0;
-	}
-	workreq = dev->quereq[c][dev->quhd[c]];
-	if (dev->id[c][scmd_id(workreq)].curr_req == NULL) {
+	if (!workreq) {
+		if ((dev->last_cmd[c] != 0xff) && (dev->working[c] != 0)) {
+			dev->in_snd[c] = 0;
+			return;
+		}
+		dev->working[c]++;
+		j = dev->quhd[c];
+		dev->quhd[c]++;
+		if (dev->quhd[c] >= qcnt)
+			dev->quhd[c] = 0;
+		workreq = dev->quereq[c][dev->quhd[c]];
+		if (dev->id[c][scmd_id(workreq)].curr_req != NULL) {
+			dev->quhd[c] = j;
+			dev->working[c]--;
+			dev->in_snd[c] = 0;
+			return;
+		}
 		dev->id[c][scmd_id(workreq)].curr_req = workreq;
 		dev->last_cmd[c] = scmd_id(workreq);
-		goto cmd_subp;
-	}	
-	dev->quhd[c] = j;
-	dev->working[c]--;
-	dev->in_snd[c] = 0;
-	return;
-cmd_subp:
-	workport = dev->ioport[c];
-	tmport = workport + 0x1f;
-	if ((inb(tmport) & 0xb0) != 0) {
-		goto abortsnd;
-	}
-	tmport = workport + 0x1c;
-	if (inb(tmport) == 0) {
-		goto oktosend;
 	}
-abortsnd:
+	if ((atp_readb_io(dev, c, 0x1f) & 0xb0) != 0 || atp_readb_io(dev, c, 0x1c) != 0) {
 #ifdef ED_DBGP
-	printk("Abort to Send\n");
+		printk("Abort to Send\n");
 #endif
-	dev->last_cmd[c] |= 0x40;
-	dev->in_snd[c] = 0;
-	return;
-oktosend:
+		dev->last_cmd[c] |= 0x40;
+		dev->in_snd[c] = 0;
+		return;
+	}
 #ifdef ED_DBGP
 	printk("OK to Send\n");
 	scmd_printk(KERN_DEBUG, workreq, "CDB");
@@ -786,9 +747,9 @@ oktosend:
 #endif	
 	l = scsi_bufflen(workreq);
 
-	if (dev->dev_id == ATP885_DEVID) {
-		j = inb(dev->baseport + 0x29) & 0xfe;
-		outb(j, dev->baseport + 0x29);
+	if (is885(dev)) {
+		j = atp_readb_base(dev, 0x29) & 0xfe;
+		atp_writeb_base(dev, 0x29, j);
 		dev->r1f[c][scmd_id(workreq)] = 0;
 	}
 	
@@ -800,7 +761,6 @@ oktosend:
 		l = 0;
 	}
 
-	tmport = workport + 0x1b;
 	j = 0;
 	target_id = scmd_id(workreq);
 
@@ -812,9 +772,9 @@ oktosend:
 	if ((w & dev->wide_id[c]) != 0) {
 		j |= 0x01;
 	}
-	outb(j, tmport);
-	while ((inb(tmport) & 0x01) != j) {
-		outb(j,tmport);
+	atp_writeb_io(dev, c, 0x1b, j);
+	while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j) {
+		atp_writeb_pci(dev, c, 0x1b, j);
 #ifdef ED_DBGP
 		printk("send_s870 while loop 1\n");
 #endif
@@ -823,24 +783,19 @@ oktosend:
 	 *	Write the command
 	 */
 
-	tmport = workport;
-	outb(workreq->cmd_len, tmport++);
-	outb(0x2c, tmport++);
-	if (dev->dev_id == ATP885_DEVID) {
-		outb(0x7f, tmport++);
-	} else {
-		outb(0xcf, tmport++); 	
-	}	
-	for (i = 0; i < workreq->cmd_len; i++) {
-		outb(workreq->cmnd[i], tmport++);
-	}
-	tmport = workport + 0x0f;
-	outb(workreq->device->lun, tmport);
-	tmport += 0x02;
+	atp_writeb_io(dev, c, 0x00, workreq->cmd_len);
+	atp_writeb_io(dev, c, 0x01, 0x2c);
+	if (is885(dev))
+		atp_writeb_io(dev, c, 0x02, 0x7f);
+	else
+		atp_writeb_io(dev, c, 0x02, 0xcf);
+	for (i = 0; i < workreq->cmd_len; i++)
+		atp_writeb_io(dev, c, 0x03 + i, workreq->cmnd[i]);
+	atp_writeb_io(dev, c, 0x0f, workreq->device->lun);
 	/*
 	 *	Write the target
 	 */
-	outb(dev->id[c][target_id].devsp, tmport++);	 
+	atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
 #ifdef ED_DBGP	
 	printk("dev->id[%d][%d].devsp = %2x\n",c,target_id,dev->id[c][target_id].devsp);
 #endif
@@ -849,9 +804,9 @@ oktosend:
 	/*
 	 *	Write transfer size
 	 */
-	outb((unsigned char) (((unsigned char *) (&l))[2]), tmport++);
-	outb((unsigned char) (((unsigned char *) (&l))[1]), tmport++);
-	outb((unsigned char) (((unsigned char *) (&l))[0]), tmport++);
+	atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&l))[2]);
+	atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&l))[1]);
+	atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&l))[0]);
 	j = target_id;	
 	dev->id[c][j].last_len = l;
 	dev->id[c][j].tran_len = 0;
@@ -867,29 +822,24 @@ oktosend:
 	/*
 	 *	Check transfer direction
 	 */
-	if (workreq->sc_data_direction == DMA_TO_DEVICE) {
-		outb((unsigned char) (j | 0x20), tmport++);
-	} else {
-		outb(j, tmport++);
-	}
-	outb((unsigned char) (inb(tmport) | 0x80), tmport);
-	outb(0x80, tmport);
-	tmport = workport + 0x1c;
+	if (workreq->sc_data_direction == DMA_TO_DEVICE)
+		atp_writeb_io(dev, c, 0x15, j | 0x20);
+	else
+		atp_writeb_io(dev, c, 0x15, j);
+	atp_writeb_io(dev, c, 0x16, atp_readb_io(dev, c, 0x16) | 0x80);
+	atp_writeb_io(dev, c, 0x16, 0x80);
 	dev->id[c][target_id].dirct = 0;
 	if (l == 0) {
-		if (inb(tmport) == 0) {
-			tmport = workport + 0x18;
+		if (atp_readb_io(dev, c, 0x1c) == 0) {
 #ifdef ED_DBGP
 			printk("change SCSI_CMD_REG 0x08\n");	
 #endif				
-			outb(0x08, tmport);
-		} else {
+			atp_writeb_io(dev, c, 0x18, 0x08);
+		} else
 			dev->last_cmd[c] |= 0x40;
-		}
 		dev->in_snd[c] = 0;
 		return;
 	}
-	tmpcip = dev->pciport[c];
 	prd = dev->id[c][target_id].prd_table;
 	dev->id[c][target_id].prd_pos = prd;
 
@@ -926,50 +876,37 @@ oktosend:
 		printk("2. bttl %x, l %x\n",bttl, l);
 #endif			
 	}
-	tmpcip += 4;
 #ifdef ED_DBGP		
-	printk("send_s870: prdaddr_2 0x%8x tmpcip %x target_id %d\n", dev->id[c][target_id].prdaddr,tmpcip,target_id);
+	printk("send_s870: prdaddr_2 0x%8x target_id %d\n", dev->id[c][target_id].prdaddr,target_id);
 #endif	
 	dev->id[c][target_id].prdaddr = dev->id[c][target_id].prd_bus;
-	outl(dev->id[c][target_id].prdaddr, tmpcip);
-	tmpcip = tmpcip - 2;
-	outb(0x06, tmpcip);
-	outb(0x00, tmpcip);
-	if (dev->dev_id == ATP885_DEVID) {
-		tmpcip--;
-		j=inb(tmpcip) & 0xf3;
+	atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
+	atp_writeb_pci(dev, c, 2, 0x06);
+	atp_writeb_pci(dev, c, 2, 0x00);
+	if (is885(dev)) {
+		j = atp_readb_pci(dev, c, 1) & 0xf3;
 		if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) ||
 	    	(workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
 	   		j |= 0x0c;
 		}
-		outb(j,tmpcip);
-		tmpcip--;	    	
-	} else if ((dev->dev_id == ATP880_DEVID1) ||
-	    	   (dev->dev_id == ATP880_DEVID2)) {
-		tmpcip =tmpcip -2;	
-		tmport = workport - 0x05;
-		if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
-			outb((unsigned char) ((inb(tmport) & 0x3f) | 0xc0), tmport);
-		} else {
-			outb((unsigned char) (inb(tmport) & 0x3f), tmport);
-		}		
+		atp_writeb_pci(dev, c, 1, j);
+	} else if (is880(dev)) {
+		if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
+			atp_writeb_base(dev, 0x3b, (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
+		else
+			atp_writeb_base(dev, 0x3b, atp_readb_base(dev, 0x3b) & 0x3f);
 	} else {		
-		tmpcip =tmpcip -2;
-		tmport = workport + 0x3a;
-		if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
-			outb((inb(tmport) & 0xf3) | 0x08, tmport);
-		} else {
-			outb(inb(tmport) & 0xf3, tmport);
-		}		
+		if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
+			atp_writeb_base(dev, 0x3a, (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
+		else
+			atp_writeb_base(dev, 0x3a, atp_readb_base(dev, 0x3a) & 0xf3);
 	}	
-	tmport = workport + 0x1c;
 
 	if(workreq->sc_data_direction == DMA_TO_DEVICE) {
 		dev->id[c][target_id].dirct = 0x20;
-		if (inb(tmport) == 0) {
-			tmport = workport + 0x18;
-			outb(0x08, tmport);
-			outb(0x01, tmpcip);
+		if (atp_readb_io(dev, c, 0x1c) == 0) {
+			atp_writeb_io(dev, c, 0x18, 0x08);
+			atp_writeb_pci(dev, c, 0, 0x01);
 #ifdef ED_DBGP		
 		printk( "start DMA(to target)\n");
 #endif				
@@ -979,10 +916,9 @@ oktosend:
 		dev->in_snd[c] = 0;
 		return;
 	}
-	if (inb(tmport) == 0) {		
-		tmport = workport + 0x18;
-		outb(0x08, tmport);
-		outb(0x09, tmpcip);
+	if (atp_readb_io(dev, c, 0x1c) == 0) {
+		atp_writeb_io(dev, c, 0x18, 0x08);
+		atp_writeb_pci(dev, c, 0, 0x09);
 #ifdef ED_DBGP		
 		printk( "start DMA(to host)\n");
 #endif			
@@ -996,49 +932,40 @@ oktosend:
 
 static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
 {
-	unsigned int tmport;
 	unsigned short int i, k;
 	unsigned char j;
 
-	tmport = dev->ioport[0] + 0x1c;
-	outw(*val, tmport);
-FUN_D7:
+	atp_writew_io(dev, 0, 0x1c, *val);
 	for (i = 0; i < 10; i++) {	/* stable >= bus settle delay(400 ns)  */
-		k = inw(tmport);
+		k = atp_readw_io(dev, 0, 0x1c);
 		j = (unsigned char) (k >> 8);
-		if ((k & 0x8000) != 0) {	/* DB7 all release?    */
-			goto FUN_D7;
-		}
+		if ((k & 0x8000) != 0)	/* DB7 all release?    */
+			i = 0;
 	}
 	*val |= 0x4000;		/* assert DB6           */
-	outw(*val, tmport);
+	atp_writew_io(dev, 0, 0x1c, *val);
 	*val &= 0xdfff;		/* assert DB5           */
-	outw(*val, tmport);
-FUN_D5:
+	atp_writew_io(dev, 0, 0x1c, *val);
 	for (i = 0; i < 10; i++) {	/* stable >= bus settle delay(400 ns) */
-		if ((inw(tmport) & 0x2000) != 0) {	/* DB5 all release?       */
-			goto FUN_D5;
-		}
+		if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) != 0)	/* DB5 all release?       */
+			i = 0;
 	}
 	*val |= 0x8000;		/* no DB4-0, assert DB7    */
 	*val &= 0xe0ff;
-	outw(*val, tmport);
+	atp_writew_io(dev, 0, 0x1c, *val);
 	*val &= 0xbfff;		/* release DB6             */
-	outw(*val, tmport);
-FUN_D6:
+	atp_writew_io(dev, 0, 0x1c, *val);
 	for (i = 0; i < 10; i++) {	/* stable >= bus settle delay(400 ns)  */
-		if ((inw(tmport) & 0x4000) != 0) {	/* DB6 all release?  */
-			goto FUN_D6;
-		}
+		if ((atp_readw_io(dev, 0, 0x1c) & 0x4000) != 0)	/* DB6 all release?  */
+			i = 0;
 	}
 
 	return j;
 }
 
-static void tscam(struct Scsi_Host *host)
+static void tscam(struct Scsi_Host *host, bool wide_chip, u8 scam_on)
 {
 
-	unsigned int tmport;
 	unsigned char i, j, k;
 	unsigned long n;
 	unsigned short int m, assignid_map, val;
@@ -1055,31 +982,28 @@ static void tscam(struct Scsi_Host *host)
 	}
  */
 
-	tmport = dev->ioport[0] + 1;
-	outb(0x08, tmport++);
-	outb(0x7f, tmport);
-	tmport = dev->ioport[0] + 0x11;
-	outb(0x20, tmport);
+	atp_writeb_io(dev, 0, 1, 0x08);
+	atp_writeb_io(dev, 0, 2, 0x7f);
+	atp_writeb_io(dev, 0, 0x11, 0x20);
 
-	if ((dev->scam_on & 0x40) == 0) {
+	if ((scam_on & 0x40) == 0) {
 		return;
 	}
 	m = 1;
 	m <<= dev->host_id[0];
 	j = 16;
-	if (dev->chip_ver < 4) {
+	if (!wide_chip) {
 		m |= 0xff00;
 		j = 8;
 	}
 	assignid_map = m;
-	tmport = dev->ioport[0] + 0x02;
-	outb(0x02, tmport++);	/* 2*2=4ms,3EH 2/32*3E=3.9ms */
-	outb(0, tmport++);
-	outb(0, tmport++);
-	outb(0, tmport++);
-	outb(0, tmport++);
-	outb(0, tmport++);
-	outb(0, tmport++);
+	atp_writeb_io(dev, 0, 0x02, 0x02);	/* 2*2=4ms,3EH 2/32*3E=3.9ms */
+	atp_writeb_io(dev, 0, 0x03, 0);
+	atp_writeb_io(dev, 0, 0x04, 0);
+	atp_writeb_io(dev, 0, 0x05, 0);
+	atp_writeb_io(dev, 0, 0x06, 0);
+	atp_writeb_io(dev, 0, 0x07, 0);
+	atp_writeb_io(dev, 0, 0x08, 0);
 
 	for (i = 0; i < j; i++) {
 		m = 1;
@@ -1087,92 +1011,73 @@ static void tscam(struct Scsi_Host *host)
 		if ((m & assignid_map) != 0) {
 			continue;
 		}
-		tmport = dev->ioport[0] + 0x0f;
-		outb(0, tmport++);
-		tmport += 0x02;
-		outb(0, tmport++);
-		outb(0, tmport++);
-		outb(0, tmport++);
+		atp_writeb_io(dev, 0, 0x0f, 0);
+		atp_writeb_io(dev, 0, 0x12, 0);
+		atp_writeb_io(dev, 0, 0x13, 0);
+		atp_writeb_io(dev, 0, 0x14, 0);
 		if (i > 7) {
 			k = (i & 0x07) | 0x40;
 		} else {
 			k = i;
 		}
-		outb(k, tmport++);
-		tmport = dev->ioport[0] + 0x1b;
-		if (dev->chip_ver == 4) {
-			outb(0x01, tmport);
-		} else {
-			outb(0x00, tmport);
-		}
-wait_rdyok:
-		tmport = dev->ioport[0] + 0x18;
-		outb(0x09, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-		tmport -= 0x08;
-		k = inb(tmport);
-		if (k != 0x16) {
-			if ((k == 0x85) || (k == 0x42)) {
-				continue;
-			}
-			tmport = dev->ioport[0] + 0x10;
-			outb(0x41, tmport);
-			goto wait_rdyok;
-		}
+		atp_writeb_io(dev, 0, 0x15, k);
+		if (wide_chip)
+			atp_writeb_io(dev, 0, 0x1b, 0x01);
+		else
+			atp_writeb_io(dev, 0, 0x1b, 0x00);
+		do {
+			atp_writeb_io(dev, 0, 0x18, 0x09);
+
+			while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0x00)
+				cpu_relax();
+			k = atp_readb_io(dev, 0, 0x17);
+			if ((k == 0x85) || (k == 0x42))
+				break;
+			if (k != 0x16)
+				atp_writeb_io(dev, 0, 0x10, 0x41);
+		} while (k != 0x16);
+		if ((k == 0x85) || (k == 0x42))
+			continue;
 		assignid_map |= m;
 
 	}
-	tmport = dev->ioport[0] + 0x02;
-	outb(0x7f, tmport);
-	tmport = dev->ioport[0] + 0x1b;
-	outb(0x02, tmport);
+	atp_writeb_io(dev, 0, 0x02, 0x7f);
+	atp_writeb_io(dev, 0, 0x1b, 0x02);
 
-	outb(0, 0x80);
+	udelay(2);
 
 	val = 0x0080;		/* bsy  */
-	tmport = dev->ioport[0] + 0x1c;
-	outw(val, tmport);
+	atp_writew_io(dev, 0, 0x1c, val);
 	val |= 0x0040;		/* sel  */
-	outw(val, tmport);
+	atp_writew_io(dev, 0, 0x1c, val);
 	val |= 0x0004;		/* msg  */
-	outw(val, tmport);
-	inb(0x80);		/* 2 deskew delay(45ns*2=90ns) */
+	atp_writew_io(dev, 0, 0x1c, val);
+	udelay(2);		/* 2 deskew delay(45ns*2=90ns) */
 	val &= 0x007f;		/* no bsy  */
-	outw(val, tmport);
+	atp_writew_io(dev, 0, 0x1c, val);
 	mdelay(128);
 	val &= 0x00fb;		/* after 1ms no msg */
-	outw(val, tmport);
-wait_nomsg:
-	if ((inb(tmport) & 0x04) != 0) {
-		goto wait_nomsg;
-	}
-	outb(1, 0x80);
+	atp_writew_io(dev, 0, 0x1c, val);
+	while ((atp_readb_io(dev, 0, 0x1c) & 0x04) != 0)
+		;
+	udelay(2);
 	udelay(100);
-	for (n = 0; n < 0x30000; n++) {
-		if ((inb(tmport) & 0x80) != 0) {	/* bsy ? */
-			goto wait_io;
-		}
-	}
-	goto TCM_SYNC;
-wait_io:
-	for (n = 0; n < 0x30000; n++) {
-		if ((inb(tmport) & 0x81) == 0x0081) {
-			goto wait_io1;
-		}
-	}
-	goto TCM_SYNC;
-wait_io1:
-	inb(0x80);
-	val |= 0x8003;		/* io,cd,db7  */
-	outw(val, tmport);
-	inb(0x80);
-	val &= 0x00bf;		/* no sel     */
-	outw(val, tmport);
-	outb(2, 0x80);
-TCM_SYNC:
+	for (n = 0; n < 0x30000; n++)
+		if ((atp_readb_io(dev, 0, 0x1c) & 0x80) != 0)	/* bsy ? */
+			break;
+	if (n < 0x30000)
+		for (n = 0; n < 0x30000; n++)
+			if ((atp_readb_io(dev, 0, 0x1c) & 0x81) == 0x0081) {
+				udelay(2);
+				val |= 0x8003;		/* io,cd,db7  */
+				atp_writew_io(dev, 0, 0x1c, val);
+				udelay(2);
+				val &= 0x00bf;		/* no sel     */
+				atp_writew_io(dev, 0, 0x1c, val);
+				udelay(2);
+				break;
+			}
+	while (1) {
 	/*
 	 * The funny division into multiple delays is to accomodate
 	 * arches like ARM where udelay() multiplies its argument by
@@ -1183,55 +1088,48 @@ TCM_SYNC:
 	 */
 	mdelay(2);
 	udelay(48);
-	if ((inb(tmport) & 0x80) == 0x00) {	/* bsy ? */
-		outw(0, tmport--);
-		outb(0, tmport);
-		tmport = dev->ioport[0] + 0x15;
-		outb(0, tmport);
-		tmport += 0x03;
-		outb(0x09, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0)
+	if ((atp_readb_io(dev, 0, 0x1c) & 0x80) == 0x00) {	/* bsy ? */
+		atp_writew_io(dev, 0, 0x1c, 0);
+		atp_writeb_io(dev, 0, 0x1b, 0);
+		atp_writeb_io(dev, 0, 0x15, 0);
+		atp_writeb_io(dev, 0, 0x18, 0x09);
+		while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0)
 			cpu_relax();
-		tmport -= 0x08;
-		inb(tmport);
+		atp_readb_io(dev, 0, 0x17);
 		return;
 	}
 	val &= 0x00ff;		/* synchronization  */
 	val |= 0x3f00;
 	fun_scam(dev, &val);
-	outb(3, 0x80);
+	udelay(2);
 	val &= 0x00ff;		/* isolation        */
 	val |= 0x2000;
 	fun_scam(dev, &val);
-	outb(4, 0x80);
+	udelay(2);
 	i = 8;
 	j = 0;
-TCM_ID:
-	if ((inw(tmport) & 0x2000) == 0) {
-		goto TCM_ID;
-	}
-	outb(5, 0x80);
-	val &= 0x00ff;		/* get ID_STRING */
-	val |= 0x2000;
-	k = fun_scam(dev, &val);
-	if ((k & 0x03) == 0) {
-		goto TCM_5;
-	}
-	mbuf[j] <<= 0x01;
-	mbuf[j] &= 0xfe;
-	if ((k & 0x02) != 0) {
-		mbuf[j] |= 0x01;
-	}
-	i--;
-	if (i > 0) {
-		goto TCM_ID;
+
+	while (1) {
+		if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) == 0)
+			continue;
+		udelay(2);
+		val &= 0x00ff;		/* get ID_STRING */
+		val |= 0x2000;
+		k = fun_scam(dev, &val);
+		if ((k & 0x03) == 0)
+			break;
+		mbuf[j] <<= 0x01;
+		mbuf[j] &= 0xfe;
+		if ((k & 0x02) != 0)
+			mbuf[j] |= 0x01;
+		i--;
+		if (i > 0)
+			continue;
+		j++;
+		i = 8;
 	}
-	j++;
-	i = 8;
-	goto TCM_ID;
 
-TCM_5:			/* isolation complete..  */
+	/* isolation complete..  */
 /*    mbuf[32]=0;
 	printk(" \n%x %x %x %s\n ",assignid_map,mbuf[0],mbuf[1],&mbuf[2]); */
 	i = 15;
@@ -1239,33 +1137,33 @@ TCM_5:			/* isolation complete..  */
 	if ((j & 0x20) != 0) {	/* bit5=1:ID up to 7      */
 		i = 7;
 	}
-	if ((j & 0x06) == 0) {	/* IDvalid?             */
-		goto G2Q5;
-	}
-	k = mbuf[1];
-small_id:
-	m = 1;
-	m <<= k;
-	if ((m & assignid_map) == 0) {
-		goto G2Q_QUIN;
-	}
-	if (k > 0) {
-		k--;
-		goto small_id;
-	}
-G2Q5:			/* srch from max acceptable ID#  */
-	k = i;			/* max acceptable ID#            */
-G2Q_LP:
-	m = 1;
-	m <<= k;
-	if ((m & assignid_map) == 0) {
-		goto G2Q_QUIN;
+	if ((j & 0x06) != 0) {	/* IDvalid?             */
+		k = mbuf[1];
+		while (1) {
+			m = 1;
+			m <<= k;
+			if ((m & assignid_map) == 0)
+				break;
+			if (k > 0)
+				k--;
+			else
+				break;
+		}
 	}
-	if (k > 0) {
-		k--;
-		goto G2Q_LP;
+	if ((m & assignid_map) != 0) {	/* srch from max acceptable ID#  */
+		k = i;			/* max acceptable ID#            */
+		while (1) {
+			m = 1;
+			m <<= k;
+			if ((m & assignid_map) == 0)
+				break;
+			if (k > 0)
+				k--;
+			else
+				break;
+		}
 	}
-G2Q_QUIN:		/* k=binID#,       */
+	/* k=binID#,       */
 	assignid_map |= m;
 	if (k < 8) {
 		quintet[0] = 0x38;	/* 1st dft ID<8    */
@@ -1284,1227 +1182,6 @@ G2Q_QUIN:		/* k=binID#,       */
 	val |= m;
 	fun_scam(dev, &val);
 
-	goto TCM_SYNC;
-
-}
-
-static void is870(struct atp_unit *dev, unsigned int wkport)
-{
-	unsigned int tmport;
-	unsigned char i, j, k, rmb, n;
-	unsigned short int m;
-	static unsigned char mbuf[512];
-	static unsigned char satn[9] = { 0, 0, 0, 0, 0, 0, 0, 6, 6 };
-	static unsigned char inqd[9] = { 0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6 };
-	static unsigned char synn[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
-	static unsigned char synu[6] = { 0x80, 1, 3, 1, 0x0c, 0x0e };
-	static unsigned char synw[6] = { 0x80, 1, 3, 1, 0x0c, 0x07 };
-	static unsigned char wide[6] = { 0x80, 1, 2, 3, 1, 0 };
-	
-	tmport = wkport + 0x3a;
-	outb((unsigned char) (inb(tmport) | 0x10), tmport);
-
-	for (i = 0; i < 16; i++) {
-		if ((dev->chip_ver != 4) && (i > 7)) {
-			break;
-		}
-		m = 1;
-		m = m << i;
-		if ((m & dev->active_id[0]) != 0) {
-			continue;
-		}
-		if (i == dev->host_id[0]) {
-			printk(KERN_INFO "         ID: %2d  Host Adapter\n", dev->host_id[0]);
-			continue;
-		}
-		tmport = wkport + 0x1b;
-		if (dev->chip_ver == 4) {
-			outb(0x01, tmport);
-		} else {
-			outb(0x00, tmport);
-		}
-		tmport = wkport + 1;
-		outb(0x08, tmport++);
-		outb(0x7f, tmport++);
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		j = i;
-		if ((j & 0x08) != 0) {
-			j = (j & 0x07) | 0x40;
-		}
-		outb(j, tmport);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-
-		dev->active_id[0] |= m;
-
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-		tmport = wkport + 0x04;
-		outb(0x00, tmport);
-
-phase_cmd:
-		tmport = wkport + 0x18;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			tmport = wkport + 0x10;
-			outb(0x41, tmport);
-			goto phase_cmd;
-		}
-sel_ok:
-		tmport = wkport + 3;
-		outb(inqd[0], tmport++);
-		outb(inqd[1], tmport++);
-		outb(inqd[2], tmport++);
-		outb(inqd[3], tmport++);
-		outb(inqd[4], tmport++);
-		outb(inqd[5], tmport);
-		tmport += 0x07;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(inqd[6], tmport++);
-		outb(inqd[7], tmport++);
-		tmport += 0x03;
-		outb(inqd[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-		tmport = wkport + 0x1b;
-		if (dev->chip_ver == 4)
-			outb(0x00, tmport);
-
-		tmport = wkport + 0x18;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		j = 0;
-rd_inq_data:
-		k = inb(tmport);
-		if ((k & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[j++] = inb(tmport);
-			tmport += 0x06;
-			goto rd_inq_data;
-		}
-		if ((k & 0x80) == 0) {
-			goto rd_inq_data;
-		}
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j == 0x16) {
-			goto inq_ok;
-		}
-		tmport = wkport + 0x10;
-		outb(0x46, tmport);
-		tmport += 0x02;
-		outb(0, tmport++);
-		outb(0, tmport++);
-		outb(0, tmport++);
-		tmport += 0x03;
-		outb(0x08, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x16) {
-			goto sel_ok;
-		}
-inq_ok:
-		mbuf[36] = 0;
-		printk(KERN_INFO "         ID: %2d  %s\n", i, &mbuf[8]);
-		dev->id[0][i].devtype = mbuf[0];
-		rmb = mbuf[1];
-		n = mbuf[7];
-		if (dev->chip_ver != 4) {
-			goto not_wide;
-		}
-		if ((mbuf[7] & 0x60) == 0) {
-			goto not_wide;
-		}
-		if ((dev->global_map[0] & 0x20) == 0) {
-			goto not_wide;
-		}
-		tmport = wkport + 0x1b;
-		outb(0x01, tmport);
-		tmport = wkport + 3;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-try_wide:
-		j = 0;
-		tmport = wkport + 0x14;
-		outb(0x05, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(wide[j++], tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto try_wide;
-		}
-		continue;
-widep_out:
-		tmport = wkport + 0x18;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(0, tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto widep_out;
-		}
-		continue;
-widep_in:
-		tmport = wkport + 0x14;
-		outb(0xff, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		k = 0;
-widep_in1:
-		j = inb(tmport);
-		if ((j & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
-			goto widep_in1;
-		}
-		if ((j & 0x80) == 0x00) {
-			goto widep_in1;
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto widep_out;
-		}
-		continue;
-widep_cmd:
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			if (j == 0x4e) {
-				goto widep_out;
-			}
-			continue;
-		}
-		if (mbuf[0] != 0x01) {
-			goto not_wide;
-		}
-		if (mbuf[1] != 0x02) {
-			goto not_wide;
-		}
-		if (mbuf[2] != 0x03) {
-			goto not_wide;
-		}
-		if (mbuf[3] != 0x01) {
-			goto not_wide;
-		}
-		m = 1;
-		m = m << i;
-		dev->wide_id[0] |= m;
-not_wide:
-		if ((dev->id[0][i].devtype == 0x00) || (dev->id[0][i].devtype == 0x07) || ((dev->id[0][i].devtype == 0x05) && ((n & 0x10) != 0))) {
-			goto set_sync;
-		}
-		continue;
-set_sync:
-		tmport = wkport + 0x1b;
-		j = 0;
-		if ((m & dev->wide_id[0]) != 0) {
-			j |= 0x01;
-		}
-		outb(j, tmport);
-		tmport = wkport + 3;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-try_sync:
-		j = 0;
-		tmport = wkport + 0x14;
-		outb(0x06, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				if ((m & dev->wide_id[0]) != 0) {
-					outb(synw[j++], tmport);
-				} else {
-					if ((m & dev->ultra_map[0]) != 0) {
-						outb(synu[j++], tmport);
-					} else {
-						outb(synn[j++], tmport);
-					}
-				}
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto try_sync;
-		}
-		continue;
-phase_outs:
-		tmport = wkport + 0x18;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00) {
-			if ((inb(tmport) & 0x01) != 0x00) {
-				tmport -= 0x06;
-				outb(0x00, tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j == 0x85) {
-			goto tar_dcons;
-		}
-		j &= 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto phase_outs;
-		}
-		continue;
-phase_ins:
-		tmport = wkport + 0x14;
-		outb(0xff, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		k = 0;
-phase_ins1:
-		j = inb(tmport);
-		if ((j & 0x01) != 0x00) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
-			goto phase_ins1;
-		}
-		if ((j & 0x80) == 0x00) {
-			goto phase_ins1;
-		}
-		tmport -= 0x08;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		j = inb(tmport);
-		if (j == 0x85) {
-			goto tar_dcons;
-		}
-		j &= 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto phase_outs;
-		}
-		continue;
-phase_cmds:
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-tar_dcons:
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			continue;
-		}
-		if (mbuf[0] != 0x01) {
-			continue;
-		}
-		if (mbuf[1] != 0x03) {
-			continue;
-		}
-		if (mbuf[4] == 0x00) {
-			continue;
-		}
-		if (mbuf[3] > 0x64) {
-			continue;
-		}
-		if (mbuf[4] > 0x0c) {
-			mbuf[4] = 0x0c;
-		}
-		dev->id[0][i].devsp = mbuf[4];
-		if ((mbuf[3] < 0x0d) && (rmb == 0)) {
-			j = 0xa0;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x1a) {
-			j = 0x20;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x33) {
-			j = 0x40;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x4c) {
-			j = 0x50;
-			goto set_syn_ok;
-		}
-		j = 0x60;
-set_syn_ok:
-		dev->id[0][i].devsp = (dev->id[0][i].devsp & 0x0f) | j;
-	}
-	tmport = wkport + 0x3a;
-	outb((unsigned char) (inb(tmport) & 0xef), tmport);
-}
-
-static void is880(struct atp_unit *dev, unsigned int wkport)
-{
-	unsigned int tmport;
-	unsigned char i, j, k, rmb, n, lvdmode;
-	unsigned short int m;
-	static unsigned char mbuf[512];
-	static unsigned char satn[9] = { 0, 0, 0, 0, 0, 0, 0, 6, 6 };
-	static unsigned char inqd[9] = { 0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6 };
-	static unsigned char synn[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
-	unsigned char synu[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
-	static unsigned char synw[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
-	unsigned char synuw[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
-	static unsigned char wide[6] = { 0x80, 1, 2, 3, 1, 0 };
-	static unsigned char u3[9] = { 0x80, 1, 6, 4, 0x09, 00, 0x0e, 0x01, 0x02 };
-
-	lvdmode = inb(wkport + 0x3f) & 0x40;
-
-	for (i = 0; i < 16; i++) {
-		m = 1;
-		m = m << i;
-		if ((m & dev->active_id[0]) != 0) {
-			continue;
-		}
-		if (i == dev->host_id[0]) {
-			printk(KERN_INFO "         ID: %2d  Host Adapter\n", dev->host_id[0]);
-			continue;
-		}
-		tmport = wkport + 0x5b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x41;
-		outb(0x08, tmport++);
-		outb(0x7f, tmport++);
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		j = i;
-		if ((j & 0x08) != 0) {
-			j = (j & 0x07) | 0x40;
-		}
-		outb(j, tmport);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-		dev->active_id[0] |= m;
-
-		tmport = wkport + 0x50;
-		outb(0x30, tmport);
-		tmport = wkport + 0x54;
-		outb(0x00, tmport);
-
-phase_cmd:
-		tmport = wkport + 0x58;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			tmport = wkport + 0x50;
-			outb(0x41, tmport);
-			goto phase_cmd;
-		}
-sel_ok:
-		tmport = wkport + 0x43;
-		outb(inqd[0], tmport++);
-		outb(inqd[1], tmport++);
-		outb(inqd[2], tmport++);
-		outb(inqd[3], tmport++);
-		outb(inqd[4], tmport++);
-		outb(inqd[5], tmport);
-		tmport += 0x07;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(inqd[6], tmport++);
-		outb(inqd[7], tmport++);
-		tmport += 0x03;
-		outb(inqd[8], tmport);
-		tmport += 0x07;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-		tmport = wkport + 0x5b;
-		outb(0x00, tmport);
-		tmport = wkport + 0x58;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		j = 0;
-rd_inq_data:
-		k = inb(tmport);
-		if ((k & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[j++] = inb(tmport);
-			tmport += 0x06;
-			goto rd_inq_data;
-		}
-		if ((k & 0x80) == 0) {
-			goto rd_inq_data;
-		}
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j == 0x16) {
-			goto inq_ok;
-		}
-		tmport = wkport + 0x50;
-		outb(0x46, tmport);
-		tmport += 0x02;
-		outb(0, tmport++);
-		outb(0, tmport++);
-		outb(0, tmport++);
-		tmport += 0x03;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x16)
-			goto sel_ok;
-
-inq_ok:
-		mbuf[36] = 0;
-		printk(KERN_INFO "         ID: %2d  %s\n", i, &mbuf[8]);
-		dev->id[0][i].devtype = mbuf[0];
-		rmb = mbuf[1];
-		n = mbuf[7];
-		if ((mbuf[7] & 0x60) == 0) {
-			goto not_wide;
-		}
-		if ((i < 8) && ((dev->global_map[0] & 0x20) == 0)) {
-			goto not_wide;
-		}
-		if (lvdmode == 0) {
-			goto chg_wide;
-		}
-		if (dev->sp[0][i] != 0x04)	// force u2
-		{
-			goto chg_wide;
-		}
-
-		tmport = wkport + 0x5b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x43;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-
-try_u3:
-		j = 0;
-		tmport = wkport + 0x54;
-		outb(0x09, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(u3[j++], tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto u3p_in;
-		}
-		if (j == 0x0a) {
-			goto u3p_cmd;
-		}
-		if (j == 0x0e) {
-			goto try_u3;
-		}
-		continue;
-u3p_out:
-		tmport = wkport + 0x58;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(0, tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto u3p_in;
-		}
-		if (j == 0x0a) {
-			goto u3p_cmd;
-		}
-		if (j == 0x0e) {
-			goto u3p_out;
-		}
-		continue;
-u3p_in:
-		tmport = wkport + 0x54;
-		outb(0x09, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		k = 0;
-u3p_in1:
-		j = inb(tmport);
-		if ((j & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
-			goto u3p_in1;
-		}
-		if ((j & 0x80) == 0x00) {
-			goto u3p_in1;
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto u3p_in;
-		}
-		if (j == 0x0a) {
-			goto u3p_cmd;
-		}
-		if (j == 0x0e) {
-			goto u3p_out;
-		}
-		continue;
-u3p_cmd:
-		tmport = wkport + 0x50;
-		outb(0x30, tmport);
-		tmport = wkport + 0x54;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			if (j == 0x4e) {
-				goto u3p_out;
-			}
-			continue;
-		}
-		if (mbuf[0] != 0x01) {
-			goto chg_wide;
-		}
-		if (mbuf[1] != 0x06) {
-			goto chg_wide;
-		}
-		if (mbuf[2] != 0x04) {
-			goto chg_wide;
-		}
-		if (mbuf[3] == 0x09) {
-			m = 1;
-			m = m << i;
-			dev->wide_id[0] |= m;
-			dev->id[0][i].devsp = 0xce;
-			continue;
-		}
-chg_wide:
-		tmport = wkport + 0x5b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x43;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		tmport -= 0x08;
-		if (inb(tmport) != 0x11 && inb(tmport) != 0x8e)
-			continue;
-
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-			
-try_wide:
-		j = 0;
-		tmport = wkport + 0x54;
-		outb(0x05, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(wide[j++], tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-			
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto try_wide;
-		}
-		continue;
-widep_out:
-		tmport = wkport + 0x58;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(0, tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto widep_out;
-		}
-		continue;
-widep_in:
-		tmport = wkport + 0x54;
-		outb(0xff, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		k = 0;
-widep_in1:
-		j = inb(tmport);
-		if ((j & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
-			goto widep_in1;
-		}
-		if ((j & 0x80) == 0x00) {
-			goto widep_in1;
-		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto widep_in;
-		}
-		if (j == 0x0a) {
-			goto widep_cmd;
-		}
-		if (j == 0x0e) {
-			goto widep_out;
-		}
-		continue;
-widep_cmd:
-		tmport = wkport + 0x50;
-		outb(0x30, tmport);
-		tmport = wkport + 0x54;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			if (j == 0x4e) {
-				goto widep_out;
-			}
-			continue;
-		}
-		if (mbuf[0] != 0x01) {
-			goto not_wide;
-		}
-		if (mbuf[1] != 0x02) {
-			goto not_wide;
-		}
-		if (mbuf[2] != 0x03) {
-			goto not_wide;
-		}
-		if (mbuf[3] != 0x01) {
-			goto not_wide;
-		}
-		m = 1;
-		m = m << i;
-		dev->wide_id[0] |= m;
-not_wide:
-		if ((dev->id[0][i].devtype == 0x00) || (dev->id[0][i].devtype == 0x07) || ((dev->id[0][i].devtype == 0x05) && ((n & 0x10) != 0))) {
-			m = 1;
-			m = m << i;
-			if ((dev->async[0] & m) != 0) {
-				goto set_sync;
-			}
-		}
-		continue;
-set_sync:
-		if (dev->sp[0][i] == 0x02) {
-			synu[4] = 0x0c;
-			synuw[4] = 0x0c;
-		} else {
-			if (dev->sp[0][i] >= 0x03) {
-				synu[4] = 0x0a;
-				synuw[4] = 0x0a;
-			}
-		}
-		tmport = wkport + 0x5b;
-		j = 0;
-		if ((m & dev->wide_id[0]) != 0) {
-			j |= 0x01;
-		}
-		outb(j, tmport);
-		tmport = wkport + 0x43;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[0][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
-			continue;
-		}
-		while (inb(tmport) != 0x8e)
-			cpu_relax();
-
-try_sync:
-		j = 0;
-		tmport = wkport + 0x54;
-		outb(0x06, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				if ((m & dev->wide_id[0]) != 0) {
-					if ((m & dev->ultra_map[0]) != 0) {
-						outb(synuw[j++], tmport);
-					} else {
-						outb(synw[j++], tmport);
-					}
-				} else {
-					if ((m & dev->ultra_map[0]) != 0) {
-						outb(synu[j++], tmport);
-					} else {
-						outb(synn[j++], tmport);
-					}
-				}
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		j = inb(tmport) & 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto try_sync;
-		}
-		continue;
-phase_outs:
-		tmport = wkport + 0x58;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00) {
-			if ((inb(tmport) & 0x01) != 0x00) {
-				tmport -= 0x06;
-				outb(0x00, tmport);
-				tmport += 0x06;
-			}
-		}
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j == 0x85) {
-			goto tar_dcons;
-		}
-		j &= 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto phase_outs;
-		}
-		continue;
-phase_ins:
-		tmport = wkport + 0x54;
-		outb(0x06, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		k = 0;
-phase_ins1:
-		j = inb(tmport);
-		if ((j & 0x01) != 0x00) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
-			goto phase_ins1;
-		}
-		if ((j & 0x80) == 0x00) {
-			goto phase_ins1;
-		}
-		tmport -= 0x08;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		j = inb(tmport);
-		if (j == 0x85) {
-			goto tar_dcons;
-		}
-		j &= 0x0f;
-		if (j == 0x0f) {
-			goto phase_ins;
-		}
-		if (j == 0x0a) {
-			goto phase_cmds;
-		}
-		if (j == 0x0e) {
-			goto phase_outs;
-		}
-		continue;
-phase_cmds:
-		tmport = wkport + 0x50;
-		outb(0x30, tmport);
-tar_dcons:
-		tmport = wkport + 0x54;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
-			cpu_relax();
-
-		tmport -= 0x08;
-		j = inb(tmport);
-		if (j != 0x16) {
-			continue;
-		}
-		if (mbuf[0] != 0x01) {
-			continue;
-		}
-		if (mbuf[1] != 0x03) {
-			continue;
-		}
-		if (mbuf[4] == 0x00) {
-			continue;
-		}
-		if (mbuf[3] > 0x64) {
-			continue;
-		}
-		if (mbuf[4] > 0x0e) {
-			mbuf[4] = 0x0e;
-		}
-		dev->id[0][i].devsp = mbuf[4];
-		if (mbuf[3] < 0x0c) {
-			j = 0xb0;
-			goto set_syn_ok;
-		}
-		if ((mbuf[3] < 0x0d) && (rmb == 0)) {
-			j = 0xa0;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x1a) {
-			j = 0x20;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x33) {
-			j = 0x40;
-			goto set_syn_ok;
-		}
-		if (mbuf[3] < 0x4c) {
-			j = 0x50;
-			goto set_syn_ok;
-		}
-		j = 0x60;
-set_syn_ok:
-		dev->id[0][i].devsp = (dev->id[0][i].devsp & 0x0f) | j;
 	}
 }
 
@@ -2560,491 +1237,345 @@ static int atp870u_init_tables(struct Scsi_Host *host)
 	return 0;
 }
 
-/* return non-zero on detection */
-static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static void atp_set_host_id(struct atp_unit *atp, u8 c, u8 host_id)
 {
-	unsigned char k, m, c;
-	unsigned long flags;
-	unsigned int base_io, tmport, error,n;
-	unsigned char host_id;
-	struct Scsi_Host *shpnt = NULL;
-	struct atp_unit *atpdev, *p;
-	unsigned char setupdata[2][16];
-	int count = 0;
+	atp_writeb_io(atp, c, 0, host_id | 0x08);
+	atp_writeb_io(atp, c, 0x18, 0);
+	while ((atp_readb_io(atp, c, 0x1f) & 0x80) == 0)
+		mdelay(1);
+	atp_readb_io(atp, c, 0x17);
+	atp_writeb_io(atp, c, 1, 8);
+	atp_writeb_io(atp, c, 2, 0x7f);
+	atp_writeb_io(atp, c, 0x11, 0x20);
+}
 
-	atpdev = kzalloc(sizeof(*atpdev), GFP_KERNEL);
-	if (!atpdev)
-		return -ENOMEM;
+static void atp870_init(struct Scsi_Host *shpnt)
+{
+	struct atp_unit *atpdev = shost_priv(shpnt);
+	struct pci_dev *pdev = atpdev->pdev;
+	unsigned char k, host_id;
+	u8 scam_on;
+	bool wide_chip =
+		(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7610 &&
+		 pdev->revision == 4) ||
+		(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612UW) ||
+		(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612SUW);
+
+	pci_read_config_byte(pdev, 0x49, &host_id);
+
+	dev_info(&pdev->dev, "ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: IO:%lx, IRQ:%d.\n",
+		 shpnt->io_port, shpnt->irq);
+
+	atpdev->ioport[0] = shpnt->io_port;
+	atpdev->pciport[0] = shpnt->io_port + 0x20;
+	host_id &= 0x07;
+	atpdev->host_id[0] = host_id;
+	scam_on = atp_readb_pci(atpdev, 0, 2);
+	atpdev->global_map[0] = atp_readb_base(atpdev, 0x2d);
+	atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x2e);
+
+	if (atpdev->ultra_map[0] == 0) {
+		scam_on = 0x00;
+		atpdev->global_map[0] = 0x20;
+		atpdev->ultra_map[0] = 0xffff;
+	}
 
-	if (pci_enable_device(pdev))
-		goto err_eio;
+	if (pdev->revision > 0x07)	/* check if atp876 chip */
+		atp_writeb_base(atpdev, 0x3e, 0x00); /* enable terminator */
+
+	k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
+	atp_writeb_base(atpdev, 0x3a, k);
+	atp_writeb_base(atpdev, 0x3a, k & 0xdf);
+	mdelay(32);
+	atp_writeb_base(atpdev, 0x3a, k);
+	mdelay(32);
+	atp_set_host_id(atpdev, 0, host_id);
+
+	tscam(shpnt, wide_chip, scam_on);
+	atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
+	atp_is(atpdev, 0, wide_chip, 0);
+	atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
+	atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
+	shpnt->max_id = wide_chip ? 16 : 8;
+	shpnt->this_id = host_id;
+}
 
-        if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
-                printk(KERN_INFO "atp870u: use 32bit DMA mask.\n");
-        } else {
-                printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
-		goto err_eio;
-        }
+static void atp880_init(struct Scsi_Host *shpnt)
+{
+	struct atp_unit *atpdev = shost_priv(shpnt);
+	struct pci_dev *pdev = atpdev->pdev;
+	unsigned char k, m, host_id;
+	unsigned int n;
 
-	/*
-	 * It's probably easier to weed out some revisions like
-	 * this than via the PCI device table
-	 */
-	if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610) {
-		atpdev->chip_ver = pdev->revision;
-		if (atpdev->chip_ver < 2)
-			goto err_eio;
-	}
+	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
 
-	switch (ent->device) {
-	case PCI_DEVICE_ID_ARTOP_AEC7612UW:
-	case PCI_DEVICE_ID_ARTOP_AEC7612SUW:
-	case ATP880_DEVID1:	
-	case ATP880_DEVID2:	
-	case ATP885_DEVID:	
-		atpdev->chip_ver = 0x04;
-	default:
-		break;
-	}
-	base_io = pci_resource_start(pdev, 0);
-	base_io &= 0xfffffff8;
-
-	if ((ent->device == ATP880_DEVID1)||(ent->device == ATP880_DEVID2)) {
-		atpdev->chip_ver = pdev->revision;
-		pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);//JCC082803
-
-		host_id = inb(base_io + 0x39);
-		host_id >>= 0x04;
-
-		printk(KERN_INFO "   ACARD AEC-67160 PCI Ultra3 LVD Host Adapter: %d"
-			"    IO:%x, IRQ:%d.\n", count, base_io, pdev->irq);
-		atpdev->ioport[0] = base_io + 0x40;
-		atpdev->pciport[0] = base_io + 0x28;
-		atpdev->dev_id = ent->device;
-		atpdev->host_id[0] = host_id;
-
-		tmport = base_io + 0x22;
-		atpdev->scam_on = inb(tmport);
-		tmport += 0x13;
-		atpdev->global_map[0] = inb(tmport);
-		tmport += 0x07;
-		atpdev->ultra_map[0] = inw(tmport);
-
-		n = 0x3f09;
-next_fblk_880:
-		if (n >= 0x4000)
-			goto flash_ok_880;
+	atpdev->ioport[0] = shpnt->io_port + 0x40;
+	atpdev->pciport[0] = shpnt->io_port + 0x28;
+
+	host_id = atp_readb_base(atpdev, 0x39) >> 4;
 
+	dev_info(&pdev->dev, "ACARD AEC-67160 PCI Ultra3 LVD Host Adapter: IO:%lx, IRQ:%d.\n",
+		 shpnt->io_port, shpnt->irq);
+	atpdev->host_id[0] = host_id;
+
+	atpdev->global_map[0] = atp_readb_base(atpdev, 0x35);
+	atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x3c);
+
+	n = 0x3f09;
+	while (n < 0x4000) {
 		m = 0;
-		outw(n, base_io + 0x34);
+		atp_writew_base(atpdev, 0x34, n);
 		n += 0x0002;
-		if (inb(base_io + 0x30) == 0xff)
-			goto flash_ok_880;
-
-		atpdev->sp[0][m++] = inb(base_io + 0x30);
-		atpdev->sp[0][m++] = inb(base_io + 0x31);
-		atpdev->sp[0][m++] = inb(base_io + 0x32);
-		atpdev->sp[0][m++] = inb(base_io + 0x33);
-		outw(n, base_io + 0x34);
+		if (atp_readb_base(atpdev, 0x30) == 0xff)
+			break;
+
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
+		atp_writew_base(atpdev, 0x34, n);
 		n += 0x0002;
-		atpdev->sp[0][m++] = inb(base_io + 0x30);
-		atpdev->sp[0][m++] = inb(base_io + 0x31);
-		atpdev->sp[0][m++] = inb(base_io + 0x32);
-		atpdev->sp[0][m++] = inb(base_io + 0x33);
-		outw(n, base_io + 0x34);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
+		atp_writew_base(atpdev, 0x34, n);
 		n += 0x0002;
-		atpdev->sp[0][m++] = inb(base_io + 0x30);
-		atpdev->sp[0][m++] = inb(base_io + 0x31);
-		atpdev->sp[0][m++] = inb(base_io + 0x32);
-		atpdev->sp[0][m++] = inb(base_io + 0x33);
-		outw(n, base_io + 0x34);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
+		atp_writew_base(atpdev, 0x34, n);
 		n += 0x0002;
-		atpdev->sp[0][m++] = inb(base_io + 0x30);
-		atpdev->sp[0][m++] = inb(base_io + 0x31);
-		atpdev->sp[0][m++] = inb(base_io + 0x32);
-		atpdev->sp[0][m++] = inb(base_io + 0x33);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
+		atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
 		n += 0x0018;
-		goto next_fblk_880;
-flash_ok_880:
-		outw(0, base_io + 0x34);
-		atpdev->ultra_map[0] = 0;
-		atpdev->async[0] = 0;
+	}
+	atp_writew_base(atpdev, 0x34, 0);
+	atpdev->ultra_map[0] = 0;
+	atpdev->async[0] = 0;
+	for (k = 0; k < 16; k++) {
+		n = 1 << k;
+		if (atpdev->sp[0][k] > 1)
+			atpdev->ultra_map[0] |= n;
+		else
+			if (atpdev->sp[0][k] == 0)
+				atpdev->async[0] |= n;
+	}
+	atpdev->async[0] = ~(atpdev->async[0]);
+	atp_writeb_base(atpdev, 0x35, atpdev->global_map[0]);
+
+	k = atp_readb_base(atpdev, 0x38) & 0x80;
+	atp_writeb_base(atpdev, 0x38, k);
+	atp_writeb_base(atpdev, 0x3b, 0x20);
+	mdelay(32);
+	atp_writeb_base(atpdev, 0x3b, 0);
+	mdelay(32);
+	atp_readb_io(atpdev, 0, 0x1b);
+	atp_readb_io(atpdev, 0, 0x17);
+
+	atp_set_host_id(atpdev, 0, host_id);
+
+	tscam(shpnt, true, atp_readb_base(atpdev, 0x22));
+	atp_is(atpdev, 0, true, atp_readb_base(atpdev, 0x3f) & 0x40);
+	atp_writeb_base(atpdev, 0x38, 0xb0);
+	shpnt->max_id = 16;
+	shpnt->this_id = host_id;
+}
+
+static void atp885_init(struct Scsi_Host *shpnt)
+{
+	struct atp_unit *atpdev = shost_priv(shpnt);
+	struct pci_dev *pdev = atpdev->pdev;
+	unsigned char k, m, c;
+	unsigned int n;
+	unsigned char setupdata[2][16];
+
+	dev_info(&pdev->dev, "ACARD AEC-67162 PCI Ultra3 LVD Host Adapter: IO:%lx, IRQ:%d.\n",
+		 shpnt->io_port, shpnt->irq);
+
+	atpdev->ioport[0] = shpnt->io_port + 0x80;
+	atpdev->ioport[1] = shpnt->io_port + 0xc0;
+	atpdev->pciport[0] = shpnt->io_port + 0x40;
+	atpdev->pciport[1] = shpnt->io_port + 0x50;
+
+	c = atp_readb_base(atpdev, 0x29);
+	atp_writeb_base(atpdev, 0x29, c | 0x04);
+
+	n = 0x1f80;
+	while (n < 0x2000) {
+		atp_writew_base(atpdev, 0x3c, n);
+		if (atp_readl_base(atpdev, 0x38) == 0xffffffff)
+			break;
+		for (m = 0; m < 2; m++) {
+			atpdev->global_map[m] = 0;
+			for (k = 0; k < 4; k++) {
+				atp_writew_base(atpdev, 0x3c, n++);
+				((unsigned long *)&setupdata[m][0])[k] = atp_readl_base(atpdev, 0x38);
+			}
+			for (k = 0; k < 4; k++) {
+				atp_writew_base(atpdev, 0x3c, n++);
+				((unsigned long *)&atpdev->sp[m][0])[k] = atp_readl_base(atpdev, 0x38);
+			}
+			n += 8;
+		}
+	}
+	c = atp_readb_base(atpdev, 0x29);
+	atp_writeb_base(atpdev, 0x29, c & 0xfb);
+	for (c = 0; c < 2; c++) {
+		atpdev->ultra_map[c] = 0;
+		atpdev->async[c] = 0;
 		for (k = 0; k < 16; k++) {
-			n = 1;
-			n = n << k;
-			if (atpdev->sp[0][k] > 1) {
-				atpdev->ultra_map[0] |= n;
-			} else {
-				if (atpdev->sp[0][k] == 0)
-					atpdev->async[0] |= n;
- 			}
-	 	}
-		atpdev->async[0] = ~(atpdev->async[0]);
-		outb(atpdev->global_map[0], base_io + 0x35);
- 
-		shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
-		if (!shpnt)
-			goto err_nomem;
-
-		p = (struct atp_unit *)&shpnt->hostdata;
-
-		atpdev->host = shpnt;
-		atpdev->pdev = pdev;
-		pci_set_drvdata(pdev, p);
-		memcpy(p, atpdev, sizeof(*atpdev));
-		if (atp870u_init_tables(shpnt) < 0) {
-			printk(KERN_ERR "Unable to allocate tables for Acard controller\n");
-			goto unregister;
-		}
-
-		if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp880i", shpnt)) {
- 			printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq);
-			goto free_tables;
-		}
-
-		spin_lock_irqsave(shpnt->host_lock, flags);
-		tmport = base_io + 0x38;
-		k = inb(tmport) & 0x80;
-		outb(k, tmport);
-		tmport += 0x03;
-		outb(0x20, tmport);
-		mdelay(32);
-		outb(0, tmport);
-		mdelay(32);
-		tmport = base_io + 0x5b;
-		inb(tmport);
-		tmport -= 0x04;
-		inb(tmport);
-		tmport = base_io + 0x40;
-		outb((host_id | 0x08), tmport);
-		tmport += 0x18;
-		outb(0, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0)
-			mdelay(1);
-		tmport -= 0x08;
-		inb(tmport);
-		tmport = base_io + 0x41;
-		outb(8, tmport++);
-		outb(0x7f, tmport);
-		tmport = base_io + 0x51;
-		outb(0x20, tmport);
-
-		tscam(shpnt);
-		is880(p, base_io);
-		tmport = base_io + 0x38;
-		outb(0xb0, tmport);
-		shpnt->max_id = 16;
-		shpnt->this_id = host_id;
-		shpnt->unique_id = base_io;
-		shpnt->io_port = base_io;
-		shpnt->n_io_port = 0x60;	/* Number of bytes of I/O space used */
-		shpnt->irq = pdev->irq;			
-	} else if (ent->device == ATP885_DEVID) {	
-			printk(KERN_INFO "   ACARD AEC-67162 PCI Ultra3 LVD Host Adapter:  IO:%x, IRQ:%d.\n"
-			       , base_io, pdev->irq);
-        	
-		atpdev->pdev = pdev;
-		atpdev->dev_id  = ent->device;
-		atpdev->baseport = base_io;
-		atpdev->ioport[0] = base_io + 0x80;
-		atpdev->ioport[1] = base_io + 0xc0;
-		atpdev->pciport[0] = base_io + 0x40;
-		atpdev->pciport[1] = base_io + 0x50;
-				
-		shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
-		if (!shpnt)
-			goto err_nomem;
-        	
-		p = (struct atp_unit *)&shpnt->hostdata;
-        	
-		atpdev->host = shpnt;
-		atpdev->pdev = pdev;
-		pci_set_drvdata(pdev, p);
-		memcpy(p, atpdev, sizeof(struct atp_unit));
-		if (atp870u_init_tables(shpnt) < 0)
-			goto unregister;
-			
-#ifdef ED_DBGP		
-	printk("request_irq() shpnt %p hostdata %p\n", shpnt, p);
-#endif	        
-		if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt)) {
-				printk(KERN_ERR "Unable to allocate IRQ for Acard controller.\n");
-			goto free_tables;
+			n = 1 << k;
+			if (atpdev->sp[c][k] > 1)
+				atpdev->ultra_map[c] |= n;
+			else
+				if (atpdev->sp[c][k] == 0)
+					atpdev->async[c] |= n;
+		}
+		atpdev->async[c] = ~(atpdev->async[c]);
+
+		if (atpdev->global_map[c] == 0) {
+			k = setupdata[c][1];
+			if ((k & 0x40) != 0)
+				atpdev->global_map[c] |= 0x20;
+			k &= 0x07;
+			atpdev->global_map[c] |= k;
+			if ((setupdata[c][2] & 0x04) != 0)
+				atpdev->global_map[c] |= 0x08;
+			atpdev->host_id[c] = setupdata[c][0] & 0x07;
 		}
-		
-		spin_lock_irqsave(shpnt->host_lock, flags);        					
-        			
-		c=inb(base_io + 0x29);
-		outb((c | 0x04),base_io + 0x29);
-        	
-		n=0x1f80;
-next_fblk_885:
-		if (n >= 0x2000) {
-		   goto flash_ok_885;
-		}
-		outw(n,base_io + 0x3c);
-		if (inl(base_io + 0x38) == 0xffffffff) {
-		   goto flash_ok_885;
-		}
-		for (m=0; m < 2; m++) {
-		    p->global_map[m]= 0;
-		    for (k=0; k < 4; k++) {
-			outw(n++,base_io + 0x3c);
-			((unsigned long *)&setupdata[m][0])[k]=inl(base_io + 0x38);
-		    }
-		    for (k=0; k < 4; k++) {
-			outw(n++,base_io + 0x3c);
-			((unsigned long *)&p->sp[m][0])[k]=inl(base_io + 0x38);
-		    }
-		    n += 8;
-		}
-		goto next_fblk_885;
-flash_ok_885:
-#ifdef ED_DBGP
-		printk( "Flash Read OK\n");
-#endif	
-		c=inb(base_io + 0x29);
-		outb((c & 0xfb),base_io + 0x29);
-		for (c=0;c < 2;c++) {
-		    p->ultra_map[c]=0;
-		    p->async[c] = 0;
-		    for (k=0; k < 16; k++) {
-			n=1;
-			n = n << k;
-			if (p->sp[c][k] > 1) {
-			   p->ultra_map[c] |= n;
-			} else {
-			   if (p->sp[c][k] == 0) {
-			      p->async[c] |= n;
-			   }
-			}
-		    }
-		    p->async[c] = ~(p->async[c]);
-
-		    if (p->global_map[c] == 0) {
-		       k=setupdata[c][1];
-		       if ((k & 0x40) != 0)
-			  p->global_map[c] |= 0x20;
-		       k &= 0x07;
-		       p->global_map[c] |= k;
-		       if ((setupdata[c][2] & 0x04) != 0)
-			  p->global_map[c] |= 0x08;
-		       p->host_id[c] = setupdata[c][0] & 0x07;
-		    }
-		}
-
-		k = inb(base_io + 0x28) & 0x8f;
-		k |= 0x10;
-		outb(k, base_io + 0x28);
-		outb(0x80, base_io + 0x41);
-		outb(0x80, base_io + 0x51);
-		mdelay(100);
-		outb(0, base_io + 0x41);
-		outb(0, base_io + 0x51);
-		mdelay(1000);
-		inb(base_io + 0x9b);
-		inb(base_io + 0x97);
-		inb(base_io + 0xdb);
-		inb(base_io + 0xd7);
-		tmport = base_io + 0x80;
-		k=p->host_id[0];
-		if (k > 7)
-		   k = (k & 0x07) | 0x40;
-		k |= 0x08;
-		outb(k, tmport);
-		tmport += 0x18;
-		outb(0, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0)
-			cpu_relax();
-	
-		tmport -= 0x08;
-		inb(tmport);
-		tmport = base_io + 0x81;
-		outb(8, tmport++);
-		outb(0x7f, tmport);
-		tmport = base_io + 0x91;
-		outb(0x20, tmport);
-
-		tmport = base_io + 0xc0;
-		k=p->host_id[1];
-		if (k > 7)
-		   k = (k & 0x07) | 0x40;
-		k |= 0x08;
-		outb(k, tmport);
-		tmport += 0x18;
-		outb(0, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0)
-			cpu_relax();
+	}
 
-		tmport -= 0x08;
-		inb(tmport);
-		tmport = base_io + 0xc1;
-		outb(8, tmport++);
-		outb(0x7f, tmport);
-		tmport = base_io + 0xd1;
-		outb(0x20, tmport);
-
-		tscam_885();
-		printk(KERN_INFO "   Scanning Channel A SCSI Device ...\n");
-		is885(p, base_io + 0x80, 0);
-		printk(KERN_INFO "   Scanning Channel B SCSI Device ...\n");
-		is885(p, base_io + 0xc0, 1);
-
-		k = inb(base_io + 0x28) & 0xcf;
-		k |= 0xc0;
-		outb(k, base_io + 0x28);
-		k = inb(base_io + 0x1f) | 0x80;
-		outb(k, base_io + 0x1f);
-		k = inb(base_io + 0x29) | 0x01;
-		outb(k, base_io + 0x29);
-#ifdef ED_DBGP
-		//printk("atp885: atp_host[0] 0x%p\n", atp_host[0]);
-#endif		
-		shpnt->max_id = 16;
-		shpnt->max_lun = (p->global_map[0] & 0x07) + 1;
-		shpnt->max_channel = 1;
-		shpnt->this_id = p->host_id[0];
-		shpnt->unique_id = base_io;
-		shpnt->io_port = base_io;
-		shpnt->n_io_port = 0xff;	/* Number of bytes of I/O space used */
-		shpnt->irq = pdev->irq;
-				
-	} else {
-		error = pci_read_config_byte(pdev, 0x49, &host_id);
+	k = atp_readb_base(atpdev, 0x28) & 0x8f;
+	k |= 0x10;
+	atp_writeb_base(atpdev, 0x28, k);
+	atp_writeb_pci(atpdev, 0, 1, 0x80);
+	atp_writeb_pci(atpdev, 1, 1, 0x80);
+	mdelay(100);
+	atp_writeb_pci(atpdev, 0, 1, 0);
+	atp_writeb_pci(atpdev, 1, 1, 0);
+	mdelay(1000);
+	atp_readb_io(atpdev, 0, 0x1b);
+	atp_readb_io(atpdev, 0, 0x17);
+	atp_readb_io(atpdev, 1, 0x1b);
+	atp_readb_io(atpdev, 1, 0x17);
+
+	k = atpdev->host_id[0];
+	if (k > 7)
+		k = (k & 0x07) | 0x40;
+	atp_set_host_id(atpdev, 0, k);
+
+	k = atpdev->host_id[1];
+	if (k > 7)
+		k = (k & 0x07) | 0x40;
+	atp_set_host_id(atpdev, 1, k);
+
+	mdelay(600); /* this delay used to be called tscam_885() */
+	dev_info(&pdev->dev, "Scanning Channel A SCSI Device ...\n");
+	atp_is(atpdev, 0, true, atp_readb_io(atpdev, 0, 0x1b) >> 7);
+	atp_writeb_io(atpdev, 0, 0x16, 0x80);
+	dev_info(&pdev->dev, "Scanning Channel B SCSI Device ...\n");
+	atp_is(atpdev, 1, true, atp_readb_io(atpdev, 1, 0x1b) >> 7);
+	atp_writeb_io(atpdev, 1, 0x16, 0x80);
+	k = atp_readb_base(atpdev, 0x28) & 0xcf;
+	k |= 0xc0;
+	atp_writeb_base(atpdev, 0x28, k);
+	k = atp_readb_base(atpdev, 0x1f) | 0x80;
+	atp_writeb_base(atpdev, 0x1f, k);
+	k = atp_readb_base(atpdev, 0x29) | 0x01;
+	atp_writeb_base(atpdev, 0x29, k);
+	shpnt->max_id = 16;
+	shpnt->max_lun = (atpdev->global_map[0] & 0x07) + 1;
+	shpnt->max_channel = 1;
+	shpnt->this_id = atpdev->host_id[0];
+}
 
-		printk(KERN_INFO "   ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: %d "
-			"IO:%x, IRQ:%d.\n", count, base_io, pdev->irq);
+/* return non-zero on detection */
+static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct Scsi_Host *shpnt = NULL;
+	struct atp_unit *atpdev;
+	int err;
 
-		atpdev->ioport[0] = base_io;
-		atpdev->pciport[0] = base_io + 0x20;
-		atpdev->dev_id = ent->device;
-		host_id &= 0x07;
-		atpdev->host_id[0] = host_id;
-		tmport = base_io + 0x22;
-		atpdev->scam_on = inb(tmport);
-		tmport += 0x0b;
-		atpdev->global_map[0] = inb(tmport++);
-		atpdev->ultra_map[0] = inw(tmport);
+	if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 && pdev->revision < 2) {
+		dev_err(&pdev->dev, "ATP850S chips (AEC6710L/F cards) are not supported.\n");
+		return -ENODEV;
+	}
 
-		if (atpdev->ultra_map[0] == 0) {
-			atpdev->scam_on = 0x00;
-			atpdev->global_map[0] = 0x20;
-			atpdev->ultra_map[0] = 0xffff;
-		}
+	err = pci_enable_device(pdev);
+	if (err)
+		goto fail;
 
-		shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
-		if (!shpnt)
-			goto err_nomem;
+	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+                printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
+                err = -EIO;
+                goto disable_device;
+        }
 
-		p = (struct atp_unit *)&shpnt->hostdata;
-		
-		atpdev->host = shpnt;
-		atpdev->pdev = pdev;
-		pci_set_drvdata(pdev, p);
-		memcpy(p, atpdev, sizeof(*atpdev));
-		if (atp870u_init_tables(shpnt) < 0)
-			goto unregister;
-
-		if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870i", shpnt)) {
-			printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq);
-			goto free_tables;
-		}
-
-		spin_lock_irqsave(shpnt->host_lock, flags);
-		if (atpdev->chip_ver > 0x07) {	/* check if atp876 chip then enable terminator */
-			tmport = base_io + 0x3e;
-			outb(0x00, tmport);
-		}
- 
-		tmport = base_io + 0x3a;
-		k = (inb(tmport) & 0xf3) | 0x10;
-		outb(k, tmport);
-		outb((k & 0xdf), tmport);
-		mdelay(32);
-		outb(k, tmport);
-		mdelay(32);
-		tmport = base_io;
-		outb((host_id | 0x08), tmport);
-		tmport += 0x18;
-		outb(0, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0)
-			mdelay(1);
-
-		tmport -= 0x08;
-		inb(tmport);
-		tmport = base_io + 1;
-		outb(8, tmport++);
-		outb(0x7f, tmport);
-		tmport = base_io + 0x11;
-		outb(0x20, tmport);
-
-		tscam(shpnt);
-		is870(p, base_io);
-		tmport = base_io + 0x3a;
-		outb((inb(tmport) & 0xef), tmport);
-		tmport++;
-		outb((inb(tmport) | 0x20), tmport);
-		if (atpdev->chip_ver == 4)
-			shpnt->max_id = 16;
-		else		
-			shpnt->max_id = 8;
-		shpnt->this_id = host_id;
-		shpnt->unique_id = base_io;
-		shpnt->io_port = base_io;
-		shpnt->n_io_port = 0x40;	/* Number of bytes of I/O space used */
-		shpnt->irq = pdev->irq;		
-	} 
-		spin_unlock_irqrestore(shpnt->host_lock, flags);
-		if(ent->device==ATP885_DEVID) {
-			if(!request_region(base_io, 0xff, "atp870u")) /* Register the IO ports that we use */
-				goto request_io_fail;
-		} else if((ent->device==ATP880_DEVID1)||(ent->device==ATP880_DEVID2)) {
-			if(!request_region(base_io, 0x60, "atp870u")) /* Register the IO ports that we use */
-				goto request_io_fail;
-		} else {
-			if(!request_region(base_io, 0x40, "atp870u")) /* Register the IO ports that we use */
-				goto request_io_fail;
-		}				
-		count++;
-		if (scsi_add_host(shpnt, &pdev->dev))
-			goto scsi_add_fail;
-		scsi_scan_host(shpnt);
-#ifdef ED_DBGP			
-		printk("atp870u_prob : exit\n");
-#endif		
-		return 0;
+	err = pci_request_regions(pdev, "atp870u");
+	if (err)
+		goto disable_device;
+	pci_set_master(pdev);
+
+        err = -ENOMEM;
+	shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
+	if (!shpnt)
+		goto release_region;
+
+	atpdev = shost_priv(shpnt);
+
+	atpdev->host = shpnt;
+	atpdev->pdev = pdev;
+	pci_set_drvdata(pdev, atpdev);
+
+	shpnt->io_port = pci_resource_start(pdev, 0);
+	shpnt->io_port &= 0xfffffff8;
+	shpnt->n_io_port = pci_resource_len(pdev, 0);
+	atpdev->baseport = shpnt->io_port;
+	shpnt->unique_id = shpnt->io_port;
+	shpnt->irq = pdev->irq;
+
+	err = atp870u_init_tables(shpnt);
+	if (err) {
+		dev_err(&pdev->dev, "Unable to allocate tables for Acard controller\n");
+		goto unregister;
+	}
 
-scsi_add_fail:
-	printk("atp870u_prob:scsi_add_fail\n");
-	if(ent->device==ATP885_DEVID) {
-		release_region(base_io, 0xff);
-	} else if((ent->device==ATP880_DEVID1)||(ent->device==ATP880_DEVID2)) {
-		release_region(base_io, 0x60);
-	} else {
-		release_region(base_io, 0x40);
+	if (is880(atpdev))
+		atp880_init(shpnt);
+	else if (is885(atpdev))
+		atp885_init(shpnt);
+	else
+		atp870_init(shpnt);
+
+	err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt);
+	if (err) {
+		dev_err(&pdev->dev, "Unable to allocate IRQ %d.\n", shpnt->irq);
+		goto free_tables;
 	}
-request_io_fail:
-	printk("atp870u_prob:request_io_fail\n");
-	free_irq(pdev->irq, shpnt);
+
+	err = scsi_add_host(shpnt, &pdev->dev);
+	if (err)
+		goto scsi_add_fail;
+	scsi_scan_host(shpnt);
+
+	return 0;
+
+scsi_add_fail:
+	free_irq(shpnt->irq, shpnt);
 free_tables:
-	printk("atp870u_prob:free_table\n");
 	atp870u_free_tables(shpnt);
 unregister:
-	printk("atp870u_prob:unregister\n");
 	scsi_host_put(shpnt);
-	return -1;		
-err_eio:
-	kfree(atpdev);
-	return -EIO;
-err_nomem:
-	kfree(atpdev);
-	return -ENOMEM;
+release_region:
+	pci_release_regions(pdev);
+disable_device:
+	pci_disable_device(pdev);
+fail:
+	return err;
 }
 
 /* The abort command does not leave the device in a clean state where
@@ -3055,7 +1586,6 @@ static int atp870u_abort(struct scsi_cmnd * SCpnt)
 {
 	unsigned char  j, k, c;
 	struct scsi_cmnd *workrequ;
-	unsigned int tmport;
 	struct atp_unit *dev;	
 	struct Scsi_Host *host;
 	host = SCpnt->device->host;
@@ -3065,18 +1595,13 @@ static int atp870u_abort(struct scsi_cmnd * SCpnt)
 	printk(" atp870u: abort Channel = %x \n", c);
 	printk("working=%x last_cmd=%x ", dev->working[c], dev->last_cmd[c]);
 	printk(" quhdu=%x quendu=%x ", dev->quhd[c], dev->quend[c]);
-	tmport = dev->ioport[c];
 	for (j = 0; j < 0x18; j++) {
-		printk(" r%2x=%2x", j, inb(tmport++));
+		printk(" r%2x=%2x", j, atp_readb_io(dev, c, j));
 	}
-	tmport += 0x04;
-	printk(" r1c=%2x", inb(tmport));
-	tmport += 0x03;
-	printk(" r1f=%2x in_snd=%2x ", inb(tmport), dev->in_snd[c]);
-	tmport= dev->pciport[c];
-	printk(" d00=%2x", inb(tmport));
-	tmport += 0x02;
-	printk(" d02=%2x", inb(tmport));
+	printk(" r1c=%2x", atp_readb_io(dev, c, 0x1c));
+	printk(" r1f=%2x in_snd=%2x ", atp_readb_io(dev, c, 0x1f), dev->in_snd[c]);
+	printk(" d00=%2x", atp_readb_pci(dev, c, 0x00));
+	printk(" d02=%2x", atp_readb_pci(dev, c, 0x02));
 	for(j=0;j<16;j++) {
 	   if (dev->id[c][j].curr_req != NULL) {
 		workrequ = dev->id[c][j].curr_req;
@@ -3136,12 +1661,10 @@ static void atp870u_remove (struct pci_dev *pdev)
 	
 	
 	scsi_remove_host(pshost);
-	printk(KERN_INFO "free_irq : %d\n",pshost->irq);
 	free_irq(pshost->irq, pshost);
-	release_region(pshost->io_port, pshost->n_io_port);
-	printk(KERN_INFO "atp870u_free_tables : %p\n",pshost);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
 	atp870u_free_tables(pshost);
-	printk(KERN_INFO "scsi_host_put : %p\n",pshost);
 	scsi_host_put(pshost);
 }
 MODULE_LICENSE("GPL");
@@ -3185,52 +1708,26 @@ static struct pci_driver atp870u_driver = {
 	.remove		= atp870u_remove,
 };
 
-static int __init atp870u_init(void)
-{
-#ifdef ED_DBGP	
-	printk("atp870u_init: Entry\n");
-#endif	
-	return pci_register_driver(&atp870u_driver);
-}
-
-static void __exit atp870u_exit(void)
-{
-#ifdef ED_DBGP	
-	printk("atp870u_exit: Entry\n");
-#endif
-	pci_unregister_driver(&atp870u_driver);
-}
-
-static void tscam_885(void)
-{
-	unsigned char i;
-
-	for (i = 0; i < 0x2; i++) {
-		mdelay(300);
-	}
-	return;
-}
-
-
+module_pci_driver(atp870u_driver);
 
-static void is885(struct atp_unit *dev, unsigned int wkport,unsigned char c)
+static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode)
 {
-	unsigned int tmport;
-	unsigned char i, j, k, rmb, n, lvdmode;
+	unsigned char i, j, k, rmb, n;
 	unsigned short int m;
 	static unsigned char mbuf[512];
-	static unsigned char satn[9] =	{0, 0, 0, 0, 0, 0, 0, 6, 6};
-	static unsigned char inqd[9] =	{0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6};
-	static unsigned char synn[6] =	{0x80, 1, 3, 1, 0x19, 0x0e};
-	unsigned char synu[6] =  {0x80, 1, 3, 1, 0x0a, 0x0e};
-	static unsigned char synw[6] =	{0x80, 1, 3, 1, 0x19, 0x0e};
-	unsigned char synuw[6] =  {0x80, 1, 3, 1, 0x0a, 0x0e};
-	static unsigned char wide[6] =	{0x80, 1, 2, 3, 1, 0};
-	static unsigned char u3[9] = { 0x80,1,6,4,0x09,00,0x0e,0x01,0x02 };
-
-	lvdmode=inb(wkport + 0x1b) >> 7;
+	static unsigned char satn[9] = { 0, 0, 0, 0, 0, 0, 0, 6, 6 };
+	static unsigned char inqd[9] = { 0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6 };
+	static unsigned char synn[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
+	unsigned char synu[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
+	static unsigned char synw[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
+	static unsigned char synw_870[6] = { 0x80, 1, 3, 1, 0x0c, 0x07 };
+	unsigned char synuw[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
+	static unsigned char wide[6] = { 0x80, 1, 2, 3, 1, 0 };
+	static unsigned char u3[9] = { 0x80, 1, 6, 4, 0x09, 00, 0x0e, 0x01, 0x02 };
 
 	for (i = 0; i < 16; i++) {
+		if (!wide_chip && (i > 7))
+			break;
 		m = 1;
 		m = m << i;
 		if ((m & dev->active_id[c]) != 0) {
@@ -3240,192 +1737,172 @@ static void is885(struct atp_unit *dev, unsigned int wkport,unsigned char c)
 			printk(KERN_INFO "         ID: %2d  Host Adapter\n", dev->host_id[c]);
 			continue;
 		}
-		tmport = wkport + 0x1b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x01;
-		outb(0x08, tmport++);
-		outb(0x7f, tmport++);
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[c][i].devsp, tmport++);
-		
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
+		atp_writeb_io(dev, c, 0x1b, wide_chip ? 0x01 : 0x00);
+		atp_writeb_io(dev, c, 1, 0x08);
+		atp_writeb_io(dev, c, 2, 0x7f);
+		atp_writeb_io(dev, c, 3, satn[0]);
+		atp_writeb_io(dev, c, 4, satn[1]);
+		atp_writeb_io(dev, c, 5, satn[2]);
+		atp_writeb_io(dev, c, 6, satn[3]);
+		atp_writeb_io(dev, c, 7, satn[4]);
+		atp_writeb_io(dev, c, 8, satn[5]);
+		atp_writeb_io(dev, c, 0x0f, 0);
+		atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, satn[6]);
+		atp_writeb_io(dev, c, 0x14, satn[7]);
 		j = i;
 		if ((j & 0x08) != 0) {
 			j = (j & 0x07) | 0x40;
 		}
-		outb(j, tmport);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
+		atp_writeb_io(dev, c, 0x15, j);
+		atp_writeb_io(dev, c, 0x18, satn[8]);
 
-		while ((inb(tmport) & 0x80) == 0x00)
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
 			continue;
-		}
-		while (inb(tmport) != 0x8e)
+
+		while (atp_readb_io(dev, c, 0x17) != 0x8e)
 			cpu_relax();
+
 		dev->active_id[c] |= m;
 
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
+		atp_writeb_io(dev, c, 0x10, 0x30);
+		if (is885(dev) || is880(dev))
+			atp_writeb_io(dev, c, 0x14, 0x00);
+		else /* result of is870() merge - is this a bug? */
+			atp_writeb_io(dev, c, 0x04, 0x00);
 
 phase_cmd:
-		tmport = wkport + 0x18;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x18, 0x08);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		j = inb(tmport);
+
+		j = atp_readb_io(dev, c, 0x17);
 		if (j != 0x16) {
-			tmport = wkport + 0x10;
-			outb(0x41, tmport);
+			atp_writeb_io(dev, c, 0x10, 0x41);
 			goto phase_cmd;
 		}
 sel_ok:
-		tmport = wkport + 0x03;
-		outb(inqd[0], tmport++);
-		outb(inqd[1], tmport++);
-		outb(inqd[2], tmport++);
-		outb(inqd[3], tmport++);
-		outb(inqd[4], tmport++);
-		outb(inqd[5], tmport);
-		tmport += 0x07;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[c][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(inqd[6], tmport++);
-		outb(inqd[7], tmport++);
-		tmport += 0x03;
-		outb(inqd[8], tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 3, inqd[0]);
+		atp_writeb_io(dev, c, 4, inqd[1]);
+		atp_writeb_io(dev, c, 5, inqd[2]);
+		atp_writeb_io(dev, c, 6, inqd[3]);
+		atp_writeb_io(dev, c, 7, inqd[4]);
+		atp_writeb_io(dev, c, 8, inqd[5]);
+		atp_writeb_io(dev, c, 0x0f, 0);
+		atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, inqd[6]);
+		atp_writeb_io(dev, c, 0x14, inqd[7]);
+		atp_writeb_io(dev, c, 0x18, inqd[8]);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
 			continue;
-		}
-		while (inb(tmport) != 0x8e)
+
+		while (atp_readb_io(dev, c, 0x17) != 0x8e)
 			cpu_relax();
-		tmport = wkport + 0x1b;
-		outb(0x00, tmport);
-		tmport = wkport + 0x18;
-		outb(0x08, tmport);
-		tmport += 0x07;
+
+		if (wide_chip)
+			atp_writeb_io(dev, c, 0x1b, 0x00);
+
+		atp_writeb_io(dev, c, 0x18, 0x08);
 		j = 0;
 rd_inq_data:
-		k = inb(tmport);
+		k = atp_readb_io(dev, c, 0x1f);
 		if ((k & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[j++] = inb(tmport);
-			tmport += 0x06;
+			mbuf[j++] = atp_readb_io(dev, c, 0x19);
 			goto rd_inq_data;
 		}
 		if ((k & 0x80) == 0) {
 			goto rd_inq_data;
 		}
-		tmport -= 0x08;
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x17);
 		if (j == 0x16) {
 			goto inq_ok;
 		}
-		tmport = wkport + 0x10;
-		outb(0x46, tmport);
-		tmport += 0x02;
-		outb(0, tmport++);
-		outb(0, tmport++);
-		outb(0, tmport++);
-		tmport += 0x03;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x10, 0x46);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, 0);
+		atp_writeb_io(dev, c, 0x14, 0);
+		atp_writeb_io(dev, c, 0x18, 0x08);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if (inb(tmport) != 0x16) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x16)
 			goto sel_ok;
-		}
+
 inq_ok:
 		mbuf[36] = 0;
-		printk( KERN_INFO"         ID: %2d  %s\n", i, &mbuf[8]);
+		printk(KERN_INFO "         ID: %2d  %s\n", i, &mbuf[8]);
 		dev->id[c][i].devtype = mbuf[0];
 		rmb = mbuf[1];
 		n = mbuf[7];
+		if (!wide_chip)
+			goto not_wide;
 		if ((mbuf[7] & 0x60) == 0) {
 			goto not_wide;
 		}
-		if ((i < 8) && ((dev->global_map[c] & 0x20) == 0)) {
-			goto not_wide;
+		if (is885(dev) || is880(dev)) {
+			if ((i < 8) && ((dev->global_map[c] & 0x20) == 0))
+				goto not_wide;
+		} else { /* result of is870() merge - is this a bug? */
+			if ((dev->global_map[c] & 0x20) == 0)
+				goto not_wide;
 		}
 		if (lvdmode == 0) {
-		   goto chg_wide;
-		}
-		if (dev->sp[c][i] != 0x04) {	// force u2
-		   goto chg_wide;
-		}
-
-		tmport = wkport + 0x1b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x03;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[c][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
+			goto chg_wide;
+		}
+		if (dev->sp[c][i] != 0x04)	// force u2
+		{
+			goto chg_wide;
+		}
+
+		atp_writeb_io(dev, c, 0x1b, 0x01);
+		atp_writeb_io(dev, c, 3, satn[0]);
+		atp_writeb_io(dev, c, 4, satn[1]);
+		atp_writeb_io(dev, c, 5, satn[2]);
+		atp_writeb_io(dev, c, 6, satn[3]);
+		atp_writeb_io(dev, c, 7, satn[4]);
+		atp_writeb_io(dev, c, 8, satn[5]);
+		atp_writeb_io(dev, c, 0x0f, 0);
+		atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, satn[6]);
+		atp_writeb_io(dev, c, 0x14, satn[7]);
+		atp_writeb_io(dev, c, 0x18, satn[8]);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
 			continue;
-		}
-		while (inb(tmport) != 0x8e)
+
+		while (atp_readb_io(dev, c, 0x17) != 0x8e)
 			cpu_relax();
+
 try_u3:
 		j = 0;
-		tmport = wkport + 0x14;
-		outb(0x09, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(u3[j++], tmport);
-				tmport += 0x06;
-			}
+		atp_writeb_io(dev, c, 0x14, 0x09);
+		atp_writeb_io(dev, c, 0x18, 0x20);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
+				atp_writeb_io(dev, c, 0x19, u3[j++]);
 			cpu_relax();
 		}
-		tmport -= 0x08;
-		while ((inb(tmport) & 0x80) == 0x00)
+
+		while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
 			cpu_relax();
-		j = inb(tmport) & 0x0f;
+
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto u3p_in;
 		}
@@ -3437,19 +1914,13 @@ try_u3:
 		}
 		continue;
 u3p_out:
-		tmport = wkport + 0x18;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(0, tmport);
-				tmport += 0x06;
-			}
+		atp_writeb_io(dev, c, 0x18, 0x20);
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
+				atp_writeb_io(dev, c, 0x19, 0);
 			cpu_relax();
 		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto u3p_in;
 		}
@@ -3461,25 +1932,19 @@ u3p_out:
 		}
 		continue;
 u3p_in:
-		tmport = wkport + 0x14;
-		outb(0x09, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
+		atp_writeb_io(dev, c, 0x14, 0x09);
+		atp_writeb_io(dev, c, 0x18, 0x20);
 		k = 0;
 u3p_in1:
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x1f);
 		if ((j & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
+			mbuf[k++] = atp_readb_io(dev, c, 0x19);
 			goto u3p_in1;
 		}
 		if ((j & 0x80) == 0x00) {
 			goto u3p_in1;
 		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto u3p_in;
 		}
@@ -3491,16 +1956,13 @@ u3p_in1:
 		}
 		continue;
 u3p_cmd:
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00);
-		tmport -= 0x08;
-		j = inb(tmport);
+		atp_writeb_io(dev, c, 0x10, 0x30);
+		atp_writeb_io(dev, c, 0x14, 0x00);
+		atp_writeb_io(dev, c, 0x18, 0x08);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00);
+
+		j = atp_readb_io(dev, c, 0x17);
 		if (j != 0x16) {
 			if (j == 0x4e) {
 				goto u3p_out;
@@ -3527,54 +1989,44 @@ u3p_cmd:
 			continue;
 		}
 chg_wide:
-		tmport = wkport + 0x1b;
-		outb(0x01, tmport);
-		tmport = wkport + 0x03;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[c][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x1b, 0x01);
+		atp_writeb_io(dev, c, 3, satn[0]);
+		atp_writeb_io(dev, c, 4, satn[1]);
+		atp_writeb_io(dev, c, 5, satn[2]);
+		atp_writeb_io(dev, c, 6, satn[3]);
+		atp_writeb_io(dev, c, 7, satn[4]);
+		atp_writeb_io(dev, c, 8, satn[5]);
+		atp_writeb_io(dev, c, 0x0f, 0);
+		atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, satn[6]);
+		atp_writeb_io(dev, c, 0x14, satn[7]);
+		atp_writeb_io(dev, c, 0x18, satn[8]);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
 			continue;
-		}
-		while (inb(tmport) != 0x8e)
+
+		while (atp_readb_io(dev, c, 0x17) != 0x8e)
 			cpu_relax();
+
 try_wide:
 		j = 0;
-		tmport = wkport + 0x14;
-		outb(0x05, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(wide[j++], tmport);
-				tmport += 0x06;
-			}
+		atp_writeb_io(dev, c, 0x14, 0x05);
+		atp_writeb_io(dev, c, 0x18, 0x20);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
+				atp_writeb_io(dev, c, 0x19, wide[j++]);
 			cpu_relax();
 		}
-		tmport -= 0x08;
-		while ((inb(tmport) & 0x80) == 0x00)
+
+		while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
 			cpu_relax();
-		j = inb(tmport) & 0x0f;
+
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto widep_in;
 		}
@@ -3586,19 +2038,13 @@ try_wide:
 		}
 		continue;
 widep_out:
-		tmport = wkport + 0x18;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
-				outb(0, tmport);
-				tmport += 0x06;
-			}
+		atp_writeb_io(dev, c, 0x18, 0x20);
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
+				atp_writeb_io(dev, c, 0x19, 0);
 			cpu_relax();
 		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto widep_in;
 		}
@@ -3610,25 +2056,19 @@ widep_out:
 		}
 		continue;
 widep_in:
-		tmport = wkport + 0x14;
-		outb(0xff, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
+		atp_writeb_io(dev, c, 0x14, 0xff);
+		atp_writeb_io(dev, c, 0x18, 0x20);
 		k = 0;
 widep_in1:
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x1f);
 		if ((j & 0x01) != 0) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
+			mbuf[k++] = atp_readb_io(dev, c, 0x19);
 			goto widep_in1;
 		}
 		if ((j & 0x80) == 0x00) {
 			goto widep_in1;
 		}
-		tmport -= 0x08;
-		j = inb(tmport) & 0x0f;
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto widep_in;
 		}
@@ -3640,17 +2080,14 @@ widep_in1:
 		}
 		continue;
 widep_cmd:
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x10, 0x30);
+		atp_writeb_io(dev, c, 0x14, 0x00);
+		atp_writeb_io(dev, c, 0x18, 0x08);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		j = inb(tmport);
+
+		j = atp_readb_io(dev, c, 0x17);
 		if (j != 0x16) {
 			if (j == 0x4e) {
 				goto widep_out;
@@ -3673,88 +2110,81 @@ widep_cmd:
 		m = m << i;
 		dev->wide_id[c] |= m;
 not_wide:
-		if ((dev->id[c][i].devtype == 0x00) || (dev->id[c][i].devtype == 0x07) ||
-		    ((dev->id[c][i].devtype == 0x05) && ((n & 0x10) != 0))) {
+		if ((dev->id[c][i].devtype == 0x00) || (dev->id[c][i].devtype == 0x07) || ((dev->id[c][i].devtype == 0x05) && ((n & 0x10) != 0))) {
 			m = 1;
 			m = m << i;
 			if ((dev->async[c] & m) != 0) {
-			   goto set_sync;
+				goto set_sync;
 			}
 		}
 		continue;
 set_sync:
-		if (dev->sp[c][i] == 0x02) {
-		   synu[4]=0x0c;
-		   synuw[4]=0x0c;
+		if ((!is885(dev) && !is880(dev)) || (dev->sp[c][i] == 0x02)) {
+			synu[4] = 0x0c;
+			synuw[4] = 0x0c;
 		} else {
-		   if (dev->sp[c][i] >= 0x03) {
-		      synu[4]=0x0a;
-		      synuw[4]=0x0a;
-		   }
+			if (dev->sp[c][i] >= 0x03) {
+				synu[4] = 0x0a;
+				synuw[4] = 0x0a;
+			}
 		}
-		tmport = wkport + 0x1b;
 		j = 0;
 		if ((m & dev->wide_id[c]) != 0) {
 			j |= 0x01;
 		}
-		outb(j, tmport);
-		tmport = wkport + 0x03;
-		outb(satn[0], tmport++);
-		outb(satn[1], tmport++);
-		outb(satn[2], tmport++);
-		outb(satn[3], tmport++);
-		outb(satn[4], tmport++);
-		outb(satn[5], tmport++);
-		tmport += 0x06;
-		outb(0, tmport);
-		tmport += 0x02;
-		outb(dev->id[c][i].devsp, tmport++);
-		outb(0, tmport++);
-		outb(satn[6], tmport++);
-		outb(satn[7], tmport++);
-		tmport += 0x03;
-		outb(satn[8], tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x1b, j);
+		atp_writeb_io(dev, c, 3, satn[0]);
+		atp_writeb_io(dev, c, 4, satn[1]);
+		atp_writeb_io(dev, c, 5, satn[2]);
+		atp_writeb_io(dev, c, 6, satn[3]);
+		atp_writeb_io(dev, c, 7, satn[4]);
+		atp_writeb_io(dev, c, 8, satn[5]);
+		atp_writeb_io(dev, c, 0x0f, 0);
+		atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
+		atp_writeb_io(dev, c, 0x12, 0);
+		atp_writeb_io(dev, c, 0x13, satn[6]);
+		atp_writeb_io(dev, c, 0x14, satn[7]);
+		atp_writeb_io(dev, c, 0x18, satn[8]);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		if ((inb(tmport) != 0x11) && (inb(tmport) != 0x8e)) {
+
+		if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
 			continue;
-		}
-		while (inb(tmport) != 0x8e)
+
+		while (atp_readb_io(dev, c, 0x17) != 0x8e)
 			cpu_relax();
+
 try_sync:
 		j = 0;
-		tmport = wkport + 0x14;
-		outb(0x06, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
-
-		while ((inb(tmport) & 0x80) == 0) {
-			if ((inb(tmport) & 0x01) != 0) {
-				tmport -= 0x06;
+		atp_writeb_io(dev, c, 0x14, 0x06);
+		atp_writeb_io(dev, c, 0x18, 0x20);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0) {
 				if ((m & dev->wide_id[c]) != 0) {
-					if ((m & dev->ultra_map[c]) != 0) {
-						outb(synuw[j++], tmport);
-					} else {
-						outb(synw[j++], tmport);
-					}
+					if (is885(dev) || is880(dev)) {
+						if ((m & dev->ultra_map[c]) != 0) {
+							atp_writeb_io(dev, c, 0x19, synuw[j++]);
+						} else {
+							atp_writeb_io(dev, c, 0x19, synw[j++]);
+						}
+					} else
+						atp_writeb_io(dev, c, 0x19, synw_870[j++]);
 				} else {
 					if ((m & dev->ultra_map[c]) != 0) {
-						outb(synu[j++], tmport);
+						atp_writeb_io(dev, c, 0x19, synu[j++]);
 					} else {
-						outb(synn[j++], tmport);
+						atp_writeb_io(dev, c, 0x19, synn[j++]);
 					}
 				}
-				tmport += 0x06;
 			}
 		}
-		tmport -= 0x08;
-		while ((inb(tmport) & 0x80) == 0x00)
+
+		while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
 			cpu_relax();
-		j = inb(tmport) & 0x0f;
+
+		j = atp_readb_io(dev, c, 0x17) & 0x0f;
 		if (j == 0x0f) {
 			goto phase_ins;
 		}
@@ -3766,19 +2196,13 @@ try_sync:
 		}
 		continue;
 phase_outs:
-		tmport = wkport + 0x18;
-		outb(0x20, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00) {
-			if ((inb(tmport) & 0x01) != 0x00) {
-				tmport -= 0x06;
-				outb(0x00, tmport);
-				tmport += 0x06;
-			}
+		atp_writeb_io(dev, c, 0x18, 0x20);
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00) {
+			if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0x00)
+				atp_writeb_io(dev, c, 0x19, 0x00);
 			cpu_relax();
 		}
-		tmport -= 0x08;
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x17);
 		if (j == 0x85) {
 			goto tar_dcons;
 		}
@@ -3794,26 +2218,25 @@ phase_outs:
 		}
 		continue;
 phase_ins:
-		tmport = wkport + 0x14;
-		outb(0x06, tmport);
-		tmport += 0x04;
-		outb(0x20, tmport);
-		tmport += 0x07;
+		if (is885(dev) || is880(dev))
+			atp_writeb_io(dev, c, 0x14, 0x06);
+		else
+			atp_writeb_io(dev, c, 0x14, 0xff);
+		atp_writeb_io(dev, c, 0x18, 0x20);
 		k = 0;
 phase_ins1:
-		j = inb(tmport);
+		j = atp_readb_io(dev, c, 0x1f);
 		if ((j & 0x01) != 0x00) {
-			tmport -= 0x06;
-			mbuf[k++] = inb(tmport);
-			tmport += 0x06;
+			mbuf[k++] = atp_readb_io(dev, c, 0x19);
 			goto phase_ins1;
 		}
 		if ((j & 0x80) == 0x00) {
 			goto phase_ins1;
 		}
-		tmport -= 0x08;
-		while ((inb(tmport) & 0x80) == 0x00);
-		j = inb(tmport);
+
+		while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00);
+
+		j = atp_readb_io(dev, c, 0x17);
 		if (j == 0x85) {
 			goto tar_dcons;
 		}
@@ -3829,18 +2252,15 @@ phase_ins1:
 		}
 		continue;
 phase_cmds:
-		tmport = wkport + 0x10;
-		outb(0x30, tmport);
+		atp_writeb_io(dev, c, 0x10, 0x30);
 tar_dcons:
-		tmport = wkport + 0x14;
-		outb(0x00, tmport);
-		tmport += 0x04;
-		outb(0x08, tmport);
-		tmport += 0x07;
-		while ((inb(tmport) & 0x80) == 0x00)
+		atp_writeb_io(dev, c, 0x14, 0x00);
+		atp_writeb_io(dev, c, 0x18, 0x08);
+
+		while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
 			cpu_relax();
-		tmport -= 0x08;
-		j = inb(tmport);
+
+		j = atp_readb_io(dev, c, 0x17);
 		if (j != 0x16) {
 			continue;
 		}
@@ -3856,14 +2276,21 @@ tar_dcons:
 		if (mbuf[3] > 0x64) {
 			continue;
 		}
-		if (mbuf[4] > 0x0e) {
-			mbuf[4] = 0x0e;
+		if (is885(dev) || is880(dev)) {
+			if (mbuf[4] > 0x0e) {
+				mbuf[4] = 0x0e;
+			}
+		} else {
+			if (mbuf[4] > 0x0c) {
+				mbuf[4] = 0x0c;
+			}
 		}
 		dev->id[c][i].devsp = mbuf[4];
-		if (mbuf[3] < 0x0c){
-			j = 0xb0;
-			goto set_syn_ok;
-		}
+		if (is885(dev) || is880(dev))
+			if (mbuf[3] < 0x0c) {
+				j = 0xb0;
+				goto set_syn_ok;
+			}
 		if ((mbuf[3] < 0x0d) && (rmb == 0)) {
 			j = 0xa0;
 			goto set_syn_ok;
@@ -3881,16 +2308,10 @@ tar_dcons:
 			goto set_syn_ok;
 		}
 		j = 0x60;
-	      set_syn_ok:
+set_syn_ok:
 		dev->id[c][i].devsp = (dev->id[c][i].devsp & 0x0f) | j;
-#ifdef ED_DBGP		
+#ifdef ED_DBGP
 		printk("dev->id[%2d][%2d].devsp = %2x\n",c,i,dev->id[c][i].devsp);
 #endif
 	}
-	tmport = wkport + 0x16;
-	outb(0x80, tmport);
 }
-
-module_init(atp870u_init);
-module_exit(atp870u_exit);
-
diff --git a/drivers/scsi/atp870u.h b/drivers/scsi/atp870u.h
index 5cf62566ad42..9b839b1e895a 100644
--- a/drivers/scsi/atp870u.h
+++ b/drivers/scsi/atp870u.h
@@ -26,22 +26,18 @@ struct atp_unit
 	unsigned long baseport;
 	unsigned long ioport[2];
 	unsigned long pciport[2];
-	unsigned long irq;
 	unsigned char last_cmd[2];
 	unsigned char in_snd[2];
 	unsigned char in_int[2];
 	unsigned char quhd[2];
 	unsigned char quend[2];
 	unsigned char global_map[2];
-	unsigned char chip_ver;
-	unsigned char scam_on;
 	unsigned char host_id[2];
 	unsigned int working[2];
 	unsigned short wide_id[2];
 	unsigned short active_id[2];
 	unsigned short ultra_map[2];
 	unsigned short async[2];
-	unsigned short dev_id;
 	unsigned char sp[2][16];
 	unsigned char r1f[2][16];		
 	struct scsi_cmnd *quereq[2][qcnt];
diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
index 4ad7e368bbc2..0e119d838e1b 100644
--- a/drivers/scsi/bfa/bfa.h
+++ b/drivers/scsi/bfa/bfa.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index e3f67b097a5c..2ea0db4b62a7 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index 91a8aa394db5..da9cf655be26 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_defs.h b/drivers/scsi/bfa/bfa_defs.h
index 877b86dd2837..5dc3782d615b 100644
--- a/drivers/scsi/bfa/bfa_defs.h
+++ b/drivers/scsi/bfa/bfa_defs.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_defs_fcs.h b/drivers/scsi/bfa/bfa_defs_fcs.h
index 06f0a163ca35..5815a904574d 100644
--- a/drivers/scsi/bfa/bfa_defs_fcs.h
+++ b/drivers/scsi/bfa/bfa_defs_fcs.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h
index 638f441ffc38..e81707f938cb 100644
--- a/drivers/scsi/bfa/bfa_defs_svc.h
+++ b/drivers/scsi/bfa/bfa_defs_svc.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index 64069a0a3d0d..18b7304d6b0b 100644
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
index dce787f6cca2..b8dadc9cc993 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.c
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcbuild.h b/drivers/scsi/bfa/bfa_fcbuild.h
index 03c753d1e548..b109a8813401 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.h
+++ b/drivers/scsi/bfa/bfa_fcbuild.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index d7385d1d9c5a..20982e7cdd81 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index e693af6e5930..e93921dec347 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 0f19455951ec..1e7e139d71ea 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 42bcb970445a..06dc215ea050 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -633,7 +634,7 @@ void bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim,
 
 /*
  * HBA Attribute Block : BFA internal representation. Note : Some variable
- * sizes have been trimmed to suit BFA For Ex : Model will be "Brocade". Based
+ * sizes have been trimmed to suit BFA For Ex : Model will be "QLogic ". Based
  * on this the size has been reduced to 16 bytes from the standard's 64 bytes.
  */
 struct bfa_fcs_fdmi_hba_attr_s {
diff --git a/drivers/scsi/bfa/bfa_fcs_fcpim.c b/drivers/scsi/bfa/bfa_fcs_fcpim.c
index 6dc7926a3edd..4f089d76afb1 100644
--- a/drivers/scsi/bfa/bfa_fcs_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcs_fcpim.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index ff75ef891755..7733ad5305d4 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -2653,7 +2654,7 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
 
 	strncpy(hba_attr->node_sym_name.symname,
 		port->port_cfg.node_sym_name.symname, BFA_SYMNAME_MAXLEN);
-	strcpy(hba_attr->vendor_info, "BROCADE");
+	strcpy(hba_attr->vendor_info, "QLogic");
 	hba_attr->num_ports =
 		cpu_to_be32(bfa_ioc_get_nports(&port->fcs->bfa->ioc));
 	hba_attr->fabric_name = port->fabric->lps->pr_nwwn;
diff --git a/drivers/scsi/bfa/bfa_fcs_rport.c b/drivers/scsi/bfa/bfa_fcs_rport.c
index 2035b0d64351..de50349a39ce 100644
--- a/drivers/scsi/bfa/bfa_fcs_rport.c
+++ b/drivers/scsi/bfa/bfa_fcs_rport.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_hw_cb.c b/drivers/scsi/bfa/bfa_hw_cb.c
index ea24d4c6e67a..c4a0c0eb88a5 100644
--- a/drivers/scsi/bfa/bfa_hw_cb.c
+++ b/drivers/scsi/bfa/bfa_hw_cb.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_hw_ct.c b/drivers/scsi/bfa/bfa_hw_ct.c
index 637527f48b40..b0ff378dece2 100644
--- a/drivers/scsi/bfa/bfa_hw_ct.c
+++ b/drivers/scsi/bfa/bfa_hw_ct.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 98f7e8cca52d..251e2ff8ff5f 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -2697,7 +2698,7 @@ bfa_ioc_reset_fwstate(struct bfa_ioc_s *ioc)
 	bfa_ioc_set_alt_ioc_fwstate(ioc, BFI_IOC_UNINIT);
 }
 
-#define BFA_MFG_NAME "Brocade"
+#define BFA_MFG_NAME "QLogic"
 void
 bfa_ioc_get_adapter_attr(struct bfa_ioc_s *ioc,
 			 struct bfa_adapter_attr_s *ad_attr)
diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
index a38aafa030b3..713745da44c6 100644
--- a/drivers/scsi/bfa/bfa_ioc.h
+++ b/drivers/scsi/bfa/bfa_ioc.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_ioc_cb.c b/drivers/scsi/bfa/bfa_ioc_cb.c
index 453c2f5b5561..f1b80da298c8 100644
--- a/drivers/scsi/bfa/bfa_ioc_cb.c
+++ b/drivers/scsi/bfa/bfa_ioc_cb.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_ioc_ct.c b/drivers/scsi/bfa/bfa_ioc_ct.c
index bd53150e4ee0..651a8fb93037 100644
--- a/drivers/scsi/bfa/bfa_ioc_ct.c
+++ b/drivers/scsi/bfa/bfa_ioc_ct.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
index a14c784ff3fc..53135f21fa0e 100644
--- a/drivers/scsi/bfa/bfa_modules.h
+++ b/drivers/scsi/bfa/bfa_modules.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_plog.h b/drivers/scsi/bfa/bfa_plog.h
index 1c9baa68339b..da570c0b8275 100644
--- a/drivers/scsi/bfa/bfa_plog.h
+++ b/drivers/scsi/bfa/bfa_plog.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_port.c b/drivers/scsi/bfa/bfa_port.c
index 8ea7697deb9b..da1721e0d167 100644
--- a/drivers/scsi/bfa/bfa_port.c
+++ b/drivers/scsi/bfa/bfa_port.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_port.h b/drivers/scsi/bfa/bfa_port.h
index 2fcab6bc6280..26dc1bf14c85 100644
--- a/drivers/scsi/bfa/bfa_port.h
+++ b/drivers/scsi/bfa/bfa_port.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 625225f31081..12de292175ef 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index ef07365991e7..ea2278bc78a8 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index cc3b9d3d6d40..9d253cb83ee7 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -130,13 +131,9 @@ MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 			"boot port. Otherwise 10 secs in RHEL4 & 0 for "
 			"[RHEL5, SLES10, ESX40] Range[>0]");
 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
-			"for Brocade-415/425/815/825 cards, default=0, "
-			" Range[false:0|true:1]");
+MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts for QLogic-415/425/815/825 cards, default=0 Range[false:0|true:1]");
 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
-			"if possible for Brocade-1010/1020/804/1007/902/1741 "
-			"cards, default=0, Range[false:0|true:1]");
+MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts if possible for QLogic-1010/1020/804/1007/902/1741 cards, default=0, Range[false:0|true:1]");
 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 				"Range[false:0|true:1]");
@@ -838,8 +835,7 @@ bfad_drv_init(struct bfad_s *bfad)
 		printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 		       bfad->inst_no);
 		printk(KERN_WARNING
-			"Not enough memory to attach all Brocade HBA ports, %s",
-			"System may need more memory.\n");
+			"Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n");
 		return BFA_STATUS_FAILED;
 	}
 
@@ -1710,7 +1706,7 @@ bfad_init(void)
 {
 	int		error = 0;
 
-	printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
+	pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n",
 			BFAD_DRIVER_VERSION);
 
 	if (num_sgpgs > 0)
@@ -1817,6 +1813,6 @@ bfad_free_fwimg(void)
 module_init(bfad_init);
 module_exit(bfad_exit);
 MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
-MODULE_AUTHOR("Brocade Communications Systems, Inc.");
+MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME);
+MODULE_AUTHOR("QLogic Corporation");
 MODULE_VERSION(BFAD_DRIVER_VERSION);
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 40be670a1cbc..13db3b7bc873 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -750,65 +751,65 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
 
 	bfa_get_adapter_model(&bfad->bfa, model);
 	nports = bfa_get_nports(&bfad->bfa);
-	if (!strcmp(model, "Brocade-425"))
+	if (!strcmp(model, "QLogic-425"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 4Gbps PCIe dual port FC HBA");
-	else if (!strcmp(model, "Brocade-825"))
+			"QLogic BR-series 4Gbps PCIe dual port FC HBA");
+	else if (!strcmp(model, "QLogic-825"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 8Gbps PCIe dual port FC HBA");
-	else if (!strcmp(model, "Brocade-42B"))
+			"QLogic BR-series 8Gbps PCIe dual port FC HBA");
+	else if (!strcmp(model, "QLogic-42B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 4Gbps PCIe dual port FC HBA for HP");
-	else if (!strcmp(model, "Brocade-82B"))
+			"QLogic BR-series 4Gbps PCIe dual port FC HBA for HP");
+	else if (!strcmp(model, "QLogic-82B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 8Gbps PCIe dual port FC HBA for HP");
-	else if (!strcmp(model, "Brocade-1010"))
+			"QLogic BR-series 8Gbps PCIe dual port FC HBA for HP");
+	else if (!strcmp(model, "QLogic-1010"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps single port CNA");
-	else if (!strcmp(model, "Brocade-1020"))
+			"QLogic BR-series 10Gbps single port CNA");
+	else if (!strcmp(model, "QLogic-1020"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps dual port CNA");
-	else if (!strcmp(model, "Brocade-1007"))
+			"QLogic BR-series 10Gbps dual port CNA");
+	else if (!strcmp(model, "QLogic-1007"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps CNA for IBM Blade Center");
-	else if (!strcmp(model, "Brocade-415"))
+			"QLogic BR-series 10Gbps CNA for IBM Blade Center");
+	else if (!strcmp(model, "QLogic-415"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 4Gbps PCIe single port FC HBA");
-	else if (!strcmp(model, "Brocade-815"))
+			"QLogic BR-series 4Gbps PCIe single port FC HBA");
+	else if (!strcmp(model, "QLogic-815"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 8Gbps PCIe single port FC HBA");
-	else if (!strcmp(model, "Brocade-41B"))
+			"QLogic BR-series 8Gbps PCIe single port FC HBA");
+	else if (!strcmp(model, "QLogic-41B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 4Gbps PCIe single port FC HBA for HP");
-	else if (!strcmp(model, "Brocade-81B"))
+			"QLogic BR-series 4Gbps PCIe single port FC HBA for HP");
+	else if (!strcmp(model, "QLogic-81B"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 8Gbps PCIe single port FC HBA for HP");
-	else if (!strcmp(model, "Brocade-804"))
+			"QLogic BR-series 8Gbps PCIe single port FC HBA for HP");
+	else if (!strcmp(model, "QLogic-804"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 8Gbps FC HBA for HP Bladesystem C-class");
-	else if (!strcmp(model, "Brocade-1741"))
+			"QLogic BR-series 8Gbps FC HBA for HP Bladesystem C-class");
+	else if (!strcmp(model, "QLogic-1741"))
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-			"Brocade 10Gbps CNA for Dell M-Series Blade Servers");
-	else if (strstr(model, "Brocade-1860")) {
+			"QLogic BR-series 10Gbps CNA for Dell M-Series Blade Servers");
+	else if (strstr(model, "QLogic-1860")) {
 		if (nports == 1 && bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 10Gbps single port CNA");
+				"QLogic BR-series 10Gbps single port CNA");
 		else if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 16Gbps PCIe single port FC HBA");
+				"QLogic BR-series 16Gbps PCIe single port FC HBA");
 		else if (nports == 2 && bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 10Gbps dual port CNA");
+				"QLogic BR-series 10Gbps dual port CNA");
 		else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 16Gbps PCIe dual port FC HBA");
-	} else if (!strcmp(model, "Brocade-1867")) {
+				"QLogic BR-series 16Gbps PCIe dual port FC HBA");
+	} else if (!strcmp(model, "QLogic-1867")) {
 		if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 16Gbps PCIe single port FC HBA for IBM");
+				"QLogic BR-series 16Gbps PCIe single port FC HBA for IBM");
 		else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
 			snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
-				"Brocade 16Gbps PCIe dual port FC HBA for IBM");
+				"QLogic BR-series 16Gbps PCIe dual port FC HBA for IBM");
 	} else
 		snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
 			"Invalid Model");
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 023b9d42ad9a..d1ad0208dfe7 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h
index 90abef691585..917e140dfbcc 100644
--- a/drivers/scsi/bfa/bfad_bsg.h
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c
index 74a307c0a240..8dcd8c70c7ee 100644
--- a/drivers/scsi/bfa/bfad_debugfs.c
+++ b/drivers/scsi/bfa/bfad_debugfs.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfad_drv.h b/drivers/scsi/bfa/bfad_drv.h
index 8b97877d42cf..f9e862093a25 100644
--- a/drivers/scsi/bfa/bfad_drv.h
+++ b/drivers/scsi/bfa/bfad_drv.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -57,7 +58,7 @@
 #ifdef BFA_DRIVER_VERSION
 #define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
 #else
-#define BFAD_DRIVER_VERSION    "3.2.23.0"
+#define BFAD_DRIVER_VERSION    "3.2.25.0"
 #endif
 
 #define BFAD_PROTO_NAME FCPI_NAME
diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c
index 299c6f80d460..6c805e13f8dd 100644
--- a/drivers/scsi/bfa/bfad_im.c
+++ b/drivers/scsi/bfa/bfad_im.c
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -185,7 +186,7 @@ bfad_im_info(struct Scsi_Host *shost)
 
 	memset(bfa_buf, 0, sizeof(bfa_buf));
 	snprintf(bfa_buf, sizeof(bfa_buf),
-		"Brocade FC/FCOE Adapter, " "hwpath: %s driver: %s",
+		"QLogic BR-series FC/FCOE Adapter, hwpath: %s driver: %s",
 		bfad->pci_name, BFAD_DRIVER_VERSION);
 
 	return bfa_buf;
@@ -271,6 +272,19 @@ bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd,
 	cmnd->host_scribble = NULL;
 	cmnd->SCp.Status = 0;
 	bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
+	/*
+	 * bfa_itnim can be NULL if the port gets disconnected and the bfa
+	 * and fcs layers have cleaned up their nexus with the targets and
+	 * the same has not been cleaned up by the shim
+	 */
+	if (bfa_itnim == NULL) {
+		bfa_tskim_free(tskim);
+		BFA_LOG(KERN_ERR, bfad, bfa_log_level,
+			"target reset, bfa_itnim is NULL\n");
+		rc = BFA_STATUS_FAILED;
+		goto out;
+	}
+
 	memset(&scsilun, 0, sizeof(scsilun));
 	bfa_tskim_start(tskim, bfa_itnim, scsilun,
 			    FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO);
@@ -326,6 +340,19 @@ bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd)
 	cmnd->SCp.ptr = (char *)&wq;
 	cmnd->SCp.Status = 0;
 	bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim);
+	/*
+	 * bfa_itnim can be NULL if the port gets disconnected and the bfa
+	 * and fcs layers have cleaned up their nexus with the targets and
+	 * the same has not been cleaned up by the shim
+	 */
+	if (bfa_itnim == NULL) {
+		bfa_tskim_free(tskim);
+		BFA_LOG(KERN_ERR, bfad, bfa_log_level,
+			"lun reset, bfa_itnim is NULL\n");
+		spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+		rc = FAILED;
+		goto out;
+	}
 	int_to_scsilun(cmnd->device->lun, &scsilun);
 	bfa_tskim_start(tskim, bfa_itnim, scsilun,
 			    FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO);
diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
index f6c1023e502a..836fdc221edd 100644
--- a/drivers/scsi/bfa/bfad_im.h
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfi.h b/drivers/scsi/bfa/bfi.h
index 9ef91f907dec..97600dcec649 100644
--- a/drivers/scsi/bfa/bfi.h
+++ b/drivers/scsi/bfa/bfi.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfi_ms.h b/drivers/scsi/bfa/bfi_ms.h
index 1a3fe5ad58fa..ae5bfe039fcc 100644
--- a/drivers/scsi/bfa/bfi_ms.h
+++ b/drivers/scsi/bfa/bfi_ms.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
diff --git a/drivers/scsi/bfa/bfi_reg.h b/drivers/scsi/bfa/bfi_reg.h
index 99133bcf53f9..fd5b87616e8b 100644
--- a/drivers/scsi/bfa/bfi_reg.h
+++ b/drivers/scsi/bfa/bfi_reg.h
@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
  * All rights reserved
- * www.brocade.com
+ * www.qlogic.com
  *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License (GPL) Version 2 as
@@ -16,7 +17,7 @@
  */
 
 /*
- * bfi_reg.h ASIC register defines for all Brocade adapter ASICs
+ * bfi_reg.h ASIC register defines for all QLogic BR-series adapter ASICs
  */
 
 #ifndef __BFI_REG_H__
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h
index c11cd193f896..5ada9268a450 100644
--- a/drivers/scsi/cxlflash/common.h
+++ b/drivers/scsi/cxlflash/common.h
@@ -165,6 +165,8 @@ struct afu {
 	struct sisl_host_map __iomem *host_map;		/* MC host map */
 	struct sisl_ctrl_map __iomem *ctrl_map;		/* MC control map */
 
+	struct kref mapcount;
+
 	ctx_hndl_t ctx_hndl;	/* master's context handle */
 	u64 *hrrq_start;
 	u64 *hrrq_end;
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 1e5bf0ca81da..f6d90ce8f3b7 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -368,6 +368,7 @@ out:
 
 no_room:
 	afu->read_room = true;
+	kref_get(&cfg->afu->mapcount);
 	schedule_work(&cfg->work_q);
 	rc = SCSI_MLQUEUE_HOST_BUSY;
 	goto out;
@@ -473,6 +474,16 @@ out:
 	return rc;
 }
 
+static void afu_unmap(struct kref *ref)
+{
+	struct afu *afu = container_of(ref, struct afu, mapcount);
+
+	if (likely(afu->afu_map)) {
+		cxl_psa_unmap((void __iomem *)afu->afu_map);
+		afu->afu_map = NULL;
+	}
+}
+
 /**
  * cxlflash_driver_info() - information handler for this host driver
  * @host:	SCSI host associated with device.
@@ -503,6 +514,7 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
 	ulong lock_flags;
 	short lflag = 0;
 	int rc = 0;
+	int kref_got = 0;
 
 	dev_dbg_ratelimited(dev, "%s: (scp=%p) %d/%d/%d/%llu "
 			    "cdb=(%08X-%08X-%08X-%08X)\n",
@@ -547,6 +559,9 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
 		goto out;
 	}
 
+	kref_get(&cfg->afu->mapcount);
+	kref_got = 1;
+
 	cmd->rcb.ctx_id = afu->ctx_hndl;
 	cmd->rcb.port_sel = port_sel;
 	cmd->rcb.lun_id = lun_to_lunid(scp->device->lun);
@@ -587,6 +602,8 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
 	}
 
 out:
+	if (kref_got)
+		kref_put(&afu->mapcount, afu_unmap);
 	pr_devel("%s: returning rc=%d\n", __func__, rc);
 	return rc;
 }
@@ -632,20 +649,36 @@ static void free_mem(struct cxlflash_cfg *cfg)
  * @cfg:	Internal structure associated with the host.
  *
  * Safe to call with AFU in a partially allocated/initialized state.
+ *
+ * Cleans up all state associated with the command queue, and unmaps
+ * the MMIO space.
+ *
+ *  - complete() will take care of commands we initiated (they'll be checked
+ *  in as part of the cleanup that occurs after the completion)
+ *
+ *  - cmd_checkin() will take care of entries that we did not initiate and that
+ *  have not (and will not) complete because they are sitting on a [now stale]
+ *  hardware queue
  */
 static void stop_afu(struct cxlflash_cfg *cfg)
 {
 	int i;
 	struct afu *afu = cfg->afu;
+	struct afu_cmd *cmd;
 
 	if (likely(afu)) {
-		for (i = 0; i < CXLFLASH_NUM_CMDS; i++)
-			complete(&afu->cmd[i].cevent);
+		for (i = 0; i < CXLFLASH_NUM_CMDS; i++) {
+			cmd = &afu->cmd[i];
+			complete(&cmd->cevent);
+			if (!atomic_read(&cmd->free))
+				cmd_checkin(cmd);
+		}
 
 		if (likely(afu->afu_map)) {
 			cxl_psa_unmap((void __iomem *)afu->afu_map);
 			afu->afu_map = NULL;
 		}
+		kref_put(&afu->mapcount, afu_unmap);
 	}
 }
 
@@ -731,8 +764,8 @@ static void cxlflash_remove(struct pci_dev *pdev)
 		scsi_remove_host(cfg->host);
 		/* fall through */
 	case INIT_STATE_AFU:
-		term_afu(cfg);
 		cancel_work_sync(&cfg->work_q);
+		term_afu(cfg);
 	case INIT_STATE_PCI:
 		pci_release_regions(cfg->dev);
 		pci_disable_device(pdev);
@@ -1108,7 +1141,7 @@ static const struct asyc_intr_info ainfo[] = {
 	{SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET},
 	{SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0},
 	{SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET},
-	{SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, 0},
+	{SISL_ASTATUS_FC1_LOGI_R, "login timed out, retrying", 1, LINK_RESET},
 	{SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR},
 	{SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, SCAN_HOST},
 	{SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0},
@@ -1316,6 +1349,7 @@ static irqreturn_t cxlflash_async_err_irq(int irq, void *data)
 				__func__, port);
 			cfg->lr_state = LINK_RESET_REQUIRED;
 			cfg->lr_port = port;
+			kref_get(&cfg->afu->mapcount);
 			schedule_work(&cfg->work_q);
 		}
 
@@ -1336,6 +1370,7 @@ static irqreturn_t cxlflash_async_err_irq(int irq, void *data)
 
 		if (info->action & SCAN_HOST) {
 			atomic_inc(&cfg->scan_host_needed);
+			kref_get(&cfg->afu->mapcount);
 			schedule_work(&cfg->work_q);
 		}
 	}
@@ -1731,6 +1766,7 @@ static int init_afu(struct cxlflash_cfg *cfg)
 		rc = -ENOMEM;
 		goto err1;
 	}
+	kref_init(&afu->mapcount);
 
 	/* No byte reverse on reading afu_version or string will be backwards */
 	reg = readq(&afu->afu_map->global.regs.afu_version);
@@ -1765,8 +1801,7 @@ out:
 	return rc;
 
 err2:
-	cxl_psa_unmap((void __iomem *)afu->afu_map);
-	afu->afu_map = NULL;
+	kref_put(&afu->mapcount, afu_unmap);
 err1:
 	term_mc(cfg, UNDO_START);
 	goto out;
@@ -2274,6 +2309,7 @@ static struct scsi_host_template driver_template = {
  * Device dependent values
  */
 static struct dev_dependent_vals dev_corsa_vals = { CXLFLASH_MAX_SECTORS };
+static struct dev_dependent_vals dev_flash_gt_vals = { CXLFLASH_MAX_SECTORS };
 
 /*
  * PCI device binding table
@@ -2281,6 +2317,8 @@ static struct dev_dependent_vals dev_corsa_vals = { CXLFLASH_MAX_SECTORS };
 static struct pci_device_id cxlflash_pci_table[] = {
 	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CORSA,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_corsa_vals},
+	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_FLASH_GT,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_flash_gt_vals},
 	{}
 };
 
@@ -2339,6 +2377,7 @@ static void cxlflash_worker_thread(struct work_struct *work)
 
 	if (atomic_dec_if_positive(&cfg->scan_host_needed) >= 0)
 		scsi_scan_host(cfg->host);
+	kref_put(&afu->mapcount, afu_unmap);
 }
 
 /**
@@ -2585,8 +2624,7 @@ static struct pci_driver cxlflash_driver = {
  */
 static int __init init_cxlflash(void)
 {
-	pr_info("%s: IBM Power CXL Flash Adapter: %s\n",
-		__func__, CXLFLASH_DRIVER_DATE);
+	pr_info("%s: %s\n", __func__, CXLFLASH_ADAPTER_NAME);
 
 	cxlflash_list_init();
 
diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h
index 60324566c14f..0faed422c7f4 100644
--- a/drivers/scsi/cxlflash/main.h
+++ b/drivers/scsi/cxlflash/main.h
@@ -22,10 +22,9 @@
 
 #define CXLFLASH_NAME		"cxlflash"
 #define CXLFLASH_ADAPTER_NAME	"IBM POWER CXL Flash Adapter"
-#define CXLFLASH_DRIVER_DATE	"(August 13, 2015)"
 
-#define PCI_DEVICE_ID_IBM_CORSA	0x04F0
-#define CXLFLASH_SUBS_DEV_ID	0x04F0
+#define PCI_DEVICE_ID_IBM_CORSA		0x04F0
+#define PCI_DEVICE_ID_IBM_FLASH_GT	0x0600
 
 /* Since there is only one target, make it 0 */
 #define CXLFLASH_TARGET		0
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index cac2e6a50efd..f4020dbb55c3 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -1372,7 +1372,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 	}
 
 	ctx = cxl_dev_context_init(cfg->dev);
-	if (unlikely(IS_ERR_OR_NULL(ctx))) {
+	if (IS_ERR_OR_NULL(ctx)) {
 		dev_err(dev, "%s: Could not initialize context %p\n",
 			__func__, ctx);
 		rc = -ENODEV;
@@ -1380,7 +1380,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 	}
 
 	ctxid = cxl_process_element(ctx);
-	if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err2;
@@ -1500,7 +1500,7 @@ static int recover_context(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
 	struct afu *afu = cfg->afu;
 
 	ctx = cxl_dev_context_init(cfg->dev);
-	if (unlikely(IS_ERR_OR_NULL(ctx))) {
+	if (IS_ERR_OR_NULL(ctx)) {
 		dev_err(dev, "%s: Could not initialize context %p\n",
 			__func__, ctx);
 		rc = -ENODEV;
@@ -1508,7 +1508,7 @@ static int recover_context(struct cxlflash_cfg *cfg, struct ctx_info *ctxi)
 	}
 
 	ctxid = cxl_process_element(ctx);
-	if (unlikely((ctxid > MAX_CONTEXT) || (ctxid < 0))) {
+	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid (%d) invalid!\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err1;
diff --git a/drivers/scsi/cxlflash/vlun.c b/drivers/scsi/cxlflash/vlun.c
index a53f583e2d7b..50f8e9300770 100644
--- a/drivers/scsi/cxlflash/vlun.c
+++ b/drivers/scsi/cxlflash/vlun.c
@@ -1008,6 +1008,8 @@ int cxlflash_disk_virtual_open(struct scsi_device *sdev, void *arg)
 	virt->last_lba = last_lba;
 	virt->rsrc_handle = rsrc_handle;
 
+	if (lli->port_sel == BOTH_PORTS)
+		virt->hdr.return_flags |= DK_CXLFLASH_ALL_PORTS_ACTIVE;
 out:
 	if (likely(ctxi))
 		put_context(ctxi);
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index cc2773b5de68..5a328bf81836 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -22,7 +22,9 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <asm/unaligned.h>
 #include <scsi/scsi.h>
+#include <scsi/scsi_dbg.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_dh.h>
 
@@ -58,8 +60,9 @@
 #define ALUA_FAILOVER_TIMEOUT		60
 #define ALUA_FAILOVER_RETRIES		5
 
-/* flags passed from user level */
+/* device handler flags */
 #define ALUA_OPTIMIZE_STPG		1
+#define ALUA_RTPG_EXT_HDR_UNSUPP	2
 
 struct alua_dh_data {
 	int			group_id;
@@ -73,7 +76,6 @@ struct alua_dh_data {
 	int			bufflen;
 	unsigned char		transition_tmo;
 	unsigned char		sense[SCSI_SENSE_BUFFERSIZE];
-	int			senselen;
 	struct scsi_device	*sdev;
 	activate_complete	callback_fn;
 	void			*callback_data;
@@ -83,7 +85,6 @@ struct alua_dh_data {
 #define ALUA_POLICY_SWITCH_ALL		1
 
 static char print_alua_state(int);
-static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *);
 
 static int realloc_buffer(struct alua_dh_data *h, unsigned len)
 {
@@ -131,93 +132,47 @@ static struct request *get_alua_req(struct scsi_device *sdev,
 }
 
 /*
- * submit_vpd_inquiry - Issue an INQUIRY VPD page 0x83 command
- * @sdev: sdev the command should be sent to
- */
-static int submit_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
-{
-	struct request *rq;
-	int err = SCSI_DH_RES_TEMP_UNAVAIL;
-
-	rq = get_alua_req(sdev, h->buff, h->bufflen, READ);
-	if (!rq)
-		goto done;
-
-	/* Prepare the command. */
-	rq->cmd[0] = INQUIRY;
-	rq->cmd[1] = 1;
-	rq->cmd[2] = 0x83;
-	rq->cmd[4] = h->bufflen;
-	rq->cmd_len = COMMAND_SIZE(INQUIRY);
-
-	rq->sense = h->sense;
-	memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
-	rq->sense_len = h->senselen = 0;
-
-	err = blk_execute_rq(rq->q, NULL, rq, 1);
-	if (err == -EIO) {
-		sdev_printk(KERN_INFO, sdev,
-			    "%s: evpd inquiry failed with %x\n",
-			    ALUA_DH_NAME, rq->errors);
-		h->senselen = rq->sense_len;
-		err = SCSI_DH_IO;
-	}
-	blk_put_request(rq);
-done:
-	return err;
-}
-
-/*
  * submit_rtpg - Issue a REPORT TARGET GROUP STATES command
  * @sdev: sdev the command should be sent to
  */
-static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h,
-			    bool rtpg_ext_hdr_req)
+static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 {
 	struct request *rq;
-	int err = SCSI_DH_RES_TEMP_UNAVAIL;
+	int err = 0;
 
 	rq = get_alua_req(sdev, h->buff, h->bufflen, READ);
-	if (!rq)
+	if (!rq) {
+		err = DRIVER_BUSY << 24;
 		goto done;
+	}
 
 	/* Prepare the command. */
 	rq->cmd[0] = MAINTENANCE_IN;
-	if (rtpg_ext_hdr_req)
+	if (!(h->flags & ALUA_RTPG_EXT_HDR_UNSUPP))
 		rq->cmd[1] = MI_REPORT_TARGET_PGS | MI_EXT_HDR_PARAM_FMT;
 	else
 		rq->cmd[1] = MI_REPORT_TARGET_PGS;
-	rq->cmd[6] = (h->bufflen >> 24) & 0xff;
-	rq->cmd[7] = (h->bufflen >> 16) & 0xff;
-	rq->cmd[8] = (h->bufflen >>  8) & 0xff;
-	rq->cmd[9] = h->bufflen & 0xff;
+	put_unaligned_be32(h->bufflen, &rq->cmd[6]);
 	rq->cmd_len = COMMAND_SIZE(MAINTENANCE_IN);
 
 	rq->sense = h->sense;
 	memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
-	rq->sense_len = h->senselen = 0;
+	rq->sense_len = 0;
 
-	err = blk_execute_rq(rq->q, NULL, rq, 1);
-	if (err == -EIO) {
-		sdev_printk(KERN_INFO, sdev,
-			    "%s: rtpg failed with %x\n",
-			    ALUA_DH_NAME, rq->errors);
-		h->senselen = rq->sense_len;
-		err = SCSI_DH_IO;
-	}
+	blk_execute_rq(rq->q, NULL, rq, 1);
+	if (rq->errors)
+		err = rq->errors;
 	blk_put_request(rq);
 done:
 	return err;
 }
 
 /*
- * alua_stpg - Evaluate SET TARGET GROUP STATES
+ * stpg_endio - Evaluate SET TARGET GROUP STATES
  * @sdev: the device to be evaluated
  * @state: the new target group state
  *
- * Send a SET TARGET GROUP STATES command to the device.
- * We only have to test here if we should resubmit the command;
- * any other error is assumed as a failure.
+ * Evaluate a SET TARGET GROUP STATES command response.
  */
 static void stpg_endio(struct request *req, int error)
 {
@@ -231,22 +186,21 @@ static void stpg_endio(struct request *req, int error)
 		goto done;
 	}
 
-	if (req->sense_len > 0) {
-		err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
-					   &sense_hdr);
-		if (!err) {
-			err = SCSI_DH_IO;
+	if (scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
+				 &sense_hdr)) {
+		if (sense_hdr.sense_key == NOT_READY &&
+		    sense_hdr.asc == 0x04 && sense_hdr.ascq == 0x0a) {
+			/* ALUA state transition already in progress */
+			err = SCSI_DH_OK;
 			goto done;
 		}
-		err = alua_check_sense(h->sdev, &sense_hdr);
-		if (err == ADD_TO_MLQUEUE) {
+		if (sense_hdr.sense_key == UNIT_ATTENTION) {
 			err = SCSI_DH_RETRY;
 			goto done;
 		}
-		sdev_printk(KERN_INFO, h->sdev,
-			    "%s: stpg sense code: %02x/%02x/%02x\n",
-			    ALUA_DH_NAME, sense_hdr.sense_key,
-			    sense_hdr.asc, sense_hdr.ascq);
+		sdev_printk(KERN_INFO, h->sdev, "%s: stpg failed\n",
+			    ALUA_DH_NAME);
+		scsi_print_sense_hdr(h->sdev, ALUA_DH_NAME, &sense_hdr);
 		err = SCSI_DH_IO;
 	} else if (error)
 		err = SCSI_DH_IO;
@@ -284,8 +238,7 @@ static unsigned submit_stpg(struct alua_dh_data *h)
 	/* Prepare the data buffer */
 	memset(h->buff, 0, stpg_len);
 	h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f;
-	h->buff[6] = (h->group_id >> 8) & 0xff;
-	h->buff[7] = h->group_id & 0xff;
+	put_unaligned_be16(h->group_id, &h->buff[6]);
 
 	rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
 	if (!rq)
@@ -294,15 +247,12 @@ static unsigned submit_stpg(struct alua_dh_data *h)
 	/* Prepare the command. */
 	rq->cmd[0] = MAINTENANCE_OUT;
 	rq->cmd[1] = MO_SET_TARGET_PGS;
-	rq->cmd[6] = (stpg_len >> 24) & 0xff;
-	rq->cmd[7] = (stpg_len >> 16) & 0xff;
-	rq->cmd[8] = (stpg_len >>  8) & 0xff;
-	rq->cmd[9] = stpg_len & 0xff;
+	put_unaligned_be32(stpg_len, &rq->cmd[6]);
 	rq->cmd_len = COMMAND_SIZE(MAINTENANCE_OUT);
 
 	rq->sense = h->sense;
 	memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
-	rq->sense_len = h->senselen = 0;
+	rq->sense_len = 0;
 	rq->end_io_data = h;
 
 	blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
@@ -316,12 +266,23 @@ static unsigned submit_stpg(struct alua_dh_data *h)
  * Examine the TPGS setting of the sdev to find out if ALUA
  * is supported.
  */
-static int alua_check_tpgs(struct scsi_device *sdev, struct alua_dh_data *h)
+static int alua_check_tpgs(struct scsi_device *sdev)
 {
-	int err = SCSI_DH_OK;
+	int tpgs = TPGS_MODE_NONE;
+
+	/*
+	 * ALUA support for non-disk devices is fraught with
+	 * difficulties, so disable it for now.
+	 */
+	if (sdev->type != TYPE_DISK) {
+		sdev_printk(KERN_INFO, sdev,
+			    "%s: disable for non-disk devices\n",
+			    ALUA_DH_NAME);
+		return tpgs;
+	}
 
-	h->tpgs = scsi_device_tpgs(sdev);
-	switch (h->tpgs) {
+	tpgs = scsi_device_tpgs(sdev);
+	switch (tpgs) {
 	case TPGS_MODE_EXPLICIT|TPGS_MODE_IMPLICIT:
 		sdev_printk(KERN_INFO, sdev,
 			    "%s: supports implicit and explicit TPGS\n",
@@ -335,71 +296,34 @@ static int alua_check_tpgs(struct scsi_device *sdev, struct alua_dh_data *h)
 		sdev_printk(KERN_INFO, sdev, "%s: supports implicit TPGS\n",
 			    ALUA_DH_NAME);
 		break;
-	default:
-		h->tpgs = TPGS_MODE_NONE;
+	case TPGS_MODE_NONE:
 		sdev_printk(KERN_INFO, sdev, "%s: not supported\n",
 			    ALUA_DH_NAME);
-		err = SCSI_DH_DEV_UNSUPP;
+		break;
+	default:
+		sdev_printk(KERN_INFO, sdev,
+			    "%s: unsupported TPGS setting %d\n",
+			    ALUA_DH_NAME, tpgs);
+		tpgs = TPGS_MODE_NONE;
 		break;
 	}
 
-	return err;
+	return tpgs;
 }
 
 /*
- * alua_vpd_inquiry - Evaluate INQUIRY vpd page 0x83
+ * alua_check_vpd - Evaluate INQUIRY vpd page 0x83
  * @sdev: device to be checked
  *
  * Extract the relative target port and the target port group
  * descriptor from the list of identificators.
  */
-static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
+static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h)
 {
-	int len;
-	unsigned err;
-	unsigned char *d;
-
- retry:
-	err = submit_vpd_inquiry(sdev, h);
-
-	if (err != SCSI_DH_OK)
-		return err;
-
-	/* Check if vpd page exceeds initial buffer */
-	len = (h->buff[2] << 8) + h->buff[3] + 4;
-	if (len > h->bufflen) {
-		/* Resubmit with the correct length */
-		if (realloc_buffer(h, len)) {
-			sdev_printk(KERN_WARNING, sdev,
-				    "%s: kmalloc buffer failed\n",
-				    ALUA_DH_NAME);
-			/* Temporary failure, bypass */
-			return SCSI_DH_DEV_TEMP_BUSY;
-		}
-		goto retry;
-	}
+	int rel_port = -1, group_id;
 
-	/*
-	 * Now look for the correct descriptor.
-	 */
-	d = h->buff + 4;
-	while (d < h->buff + len) {
-		switch (d[1] & 0xf) {
-		case 0x4:
-			/* Relative target port */
-			h->rel_port = (d[6] << 8) + d[7];
-			break;
-		case 0x5:
-			/* Target port group */
-			h->group_id = (d[6] << 8) + d[7];
-			break;
-		default:
-			break;
-		}
-		d += d[3] + 4;
-	}
-
-	if (h->group_id == -1) {
+	group_id = scsi_vpd_tpg_id(sdev, &rel_port);
+	if (group_id < 0) {
 		/*
 		 * Internal error; TPGS supported but required
 		 * VPD identification descriptors not present.
@@ -408,16 +332,16 @@ static int alua_vpd_inquiry(struct scsi_device *sdev, struct alua_dh_data *h)
 		sdev_printk(KERN_INFO, sdev,
 			    "%s: No target port descriptors found\n",
 			    ALUA_DH_NAME);
-		h->state = TPGS_STATE_OPTIMIZED;
-		h->tpgs = TPGS_MODE_NONE;
-		err = SCSI_DH_DEV_UNSUPP;
-	} else {
-		sdev_printk(KERN_INFO, sdev,
-			    "%s: port group %02x rel port %02x\n",
-			    ALUA_DH_NAME, h->group_id, h->rel_port);
+		return SCSI_DH_DEV_UNSUPP;
 	}
+	h->state = TPGS_STATE_OPTIMIZED;
+	h->group_id = group_id;
 
-	return err;
+	sdev_printk(KERN_INFO, sdev,
+		    "%s: port group %02x rel port %02x\n",
+		    ALUA_DH_NAME, h->group_id, h->rel_port);
+
+	return 0;
 }
 
 static char print_alua_state(int state)
@@ -452,28 +376,6 @@ static int alua_check_sense(struct scsi_device *sdev,
 			 * LUN Not Accessible - ALUA state transition
 			 */
 			return ADD_TO_MLQUEUE;
-		if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b)
-			/*
-			 * LUN Not Accessible -- Target port in standby state
-			 */
-			return SUCCESS;
-		if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0c)
-			/*
-			 * LUN Not Accessible -- Target port in unavailable state
-			 */
-			return SUCCESS;
-		if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x12)
-			/*
-			 * LUN Not Ready -- Offline
-			 */
-			return SUCCESS;
-		if (sdev->allow_restart &&
-		    sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x02)
-			/*
-			 * if the device is not started, we need to wake
-			 * the error handler to start the motor
-			 */
-			return FAILED;
 		break;
 	case UNIT_ATTENTION:
 		if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x00)
@@ -533,8 +435,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
 	struct scsi_sense_hdr sense_hdr;
 	int len, k, off, valid_states = 0;
 	unsigned char *ucp;
-	unsigned err;
-	bool rtpg_ext_hdr_req = 1;
+	unsigned err, retval;
 	unsigned long expiry, interval = 0;
 	unsigned int tpg_desc_tbl_off;
 	unsigned char orig_transition_tmo;
@@ -545,13 +446,17 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
 		expiry = round_jiffies_up(jiffies + h->transition_tmo * HZ);
 
  retry:
-	err = submit_rtpg(sdev, h, rtpg_ext_hdr_req);
-
-	if (err == SCSI_DH_IO && h->senselen > 0) {
-		err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
-					   &sense_hdr);
-		if (!err)
+	retval = submit_rtpg(sdev, h);
+	if (retval) {
+		if (!scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
+					  &sense_hdr)) {
+			sdev_printk(KERN_INFO, sdev,
+				    "%s: rtpg failed, result %d\n",
+				    ALUA_DH_NAME, retval);
+			if (driver_byte(retval) == DRIVER_BUSY)
+				return SCSI_DH_DEV_TEMP_BUSY;
 			return SCSI_DH_IO;
+		}
 
 		/*
 		 * submit_rtpg() has failed on existing arrays
@@ -561,27 +466,34 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
 		 * The retry without rtpg_ext_hdr_req set
 		 * handles this.
 		 */
-		if (rtpg_ext_hdr_req == 1 &&
+		if (!(h->flags & ALUA_RTPG_EXT_HDR_UNSUPP) &&
 		    sense_hdr.sense_key == ILLEGAL_REQUEST &&
 		    sense_hdr.asc == 0x24 && sense_hdr.ascq == 0) {
-			rtpg_ext_hdr_req = 0;
+			h->flags |= ALUA_RTPG_EXT_HDR_UNSUPP;
 			goto retry;
 		}
-
-		err = alua_check_sense(sdev, &sense_hdr);
-		if (err == ADD_TO_MLQUEUE && time_before(jiffies, expiry))
+		/*
+		 * Retry on ALUA state transition or if any
+		 * UNIT ATTENTION occurred.
+		 */
+		if (sense_hdr.sense_key == NOT_READY &&
+		    sense_hdr.asc == 0x04 && sense_hdr.ascq == 0x0a)
+			err = SCSI_DH_RETRY;
+		else if (sense_hdr.sense_key == UNIT_ATTENTION)
+			err = SCSI_DH_RETRY;
+		if (err == SCSI_DH_RETRY && time_before(jiffies, expiry)) {
+			sdev_printk(KERN_ERR, sdev, "%s: rtpg retry\n",
+				    ALUA_DH_NAME);
+			scsi_print_sense_hdr(sdev, ALUA_DH_NAME, &sense_hdr);
 			goto retry;
-		sdev_printk(KERN_INFO, sdev,
-			    "%s: rtpg sense code %02x/%02x/%02x\n",
-			    ALUA_DH_NAME, sense_hdr.sense_key,
-			    sense_hdr.asc, sense_hdr.ascq);
-		err = SCSI_DH_IO;
+		}
+		sdev_printk(KERN_ERR, sdev, "%s: rtpg failed\n",
+			    ALUA_DH_NAME);
+		scsi_print_sense_hdr(sdev, ALUA_DH_NAME, &sense_hdr);
+		return SCSI_DH_IO;
 	}
-	if (err != SCSI_DH_OK)
-		return err;
 
-	len = (h->buff[0] << 24) + (h->buff[1] << 16) +
-		(h->buff[2] << 8) + h->buff[3] + 4;
+	len = get_unaligned_be32(&h->buff[0]) + 4;
 
 	if (len > h->bufflen) {
 		/* Resubmit with the correct length */
@@ -616,7 +528,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
 	     k < len;
 	     k += off, ucp += off) {
 
-		if (h->group_id == (ucp[2] << 8) + ucp[3]) {
+		if (h->group_id == get_unaligned_be16(&ucp[2])) {
 			h->state = ucp[0] & 0x0f;
 			h->pref = ucp[0] >> 7;
 			valid_states = ucp[1];
@@ -674,13 +586,13 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
  */
 static int alua_initialize(struct scsi_device *sdev, struct alua_dh_data *h)
 {
-	int err;
+	int err = SCSI_DH_DEV_UNSUPP;
 
-	err = alua_check_tpgs(sdev, h);
-	if (err != SCSI_DH_OK)
+	h->tpgs = alua_check_tpgs(sdev);
+	if (h->tpgs == TPGS_MODE_NONE)
 		goto out;
 
-	err = alua_vpd_inquiry(sdev, h);
+	err = alua_check_vpd(sdev, h);
 	if (err != SCSI_DH_OK)
 		goto out;
 
diff --git a/drivers/scsi/hisi_sas/Kconfig b/drivers/scsi/hisi_sas/Kconfig
new file mode 100644
index 000000000000..37a0c7156087
--- /dev/null
+++ b/drivers/scsi/hisi_sas/Kconfig
@@ -0,0 +1,6 @@
+config SCSI_HISI_SAS
+	tristate "HiSilicon SAS"
+	select SCSI_SAS_LIBSAS
+	select BLK_DEV_INTEGRITY
+	help
+		This driver supports HiSilicon's SAS HBA
diff --git a/drivers/scsi/hisi_sas/Makefile b/drivers/scsi/hisi_sas/Makefile
new file mode 100644
index 000000000000..3e70eae81343
--- /dev/null
+++ b/drivers/scsi/hisi_sas/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_SCSI_HISI_SAS)		+= hisi_sas_main.o
+obj-$(CONFIG_SCSI_HISI_SAS)		+= hisi_sas_v1_hw.o
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
new file mode 100644
index 000000000000..5af2e4187f01
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#ifndef _HISI_SAS_H_
+#define _HISI_SAS_H_
+
+#include <linux/dmapool.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <scsi/libsas.h>
+
+#define DRV_VERSION "v1.0"
+
+#define HISI_SAS_MAX_PHYS	9
+#define HISI_SAS_MAX_QUEUES	32
+#define HISI_SAS_QUEUE_SLOTS 512
+#define HISI_SAS_MAX_ITCT_ENTRIES 4096
+#define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
+#define HISI_SAS_COMMAND_ENTRIES 8192
+
+#define HISI_SAS_STATUS_BUF_SZ \
+		(sizeof(struct hisi_sas_err_record) + 1024)
+#define HISI_SAS_COMMAND_TABLE_SZ \
+		(((sizeof(union hisi_sas_command_table)+3)/4)*4)
+
+#define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
+#define HISI_SAS_MAX_SMP_RESP_SZ 1028
+
+struct hisi_hba;
+
+enum {
+	PORT_TYPE_SAS = (1U << 1),
+	PORT_TYPE_SATA = (1U << 0),
+};
+
+enum dev_status {
+	HISI_SAS_DEV_NORMAL,
+	HISI_SAS_DEV_EH,
+};
+
+enum hisi_sas_dev_type {
+	HISI_SAS_DEV_TYPE_STP = 0,
+	HISI_SAS_DEV_TYPE_SSP,
+	HISI_SAS_DEV_TYPE_SATA,
+};
+
+struct hisi_sas_phy {
+	struct hisi_hba	*hisi_hba;
+	struct hisi_sas_port	*port;
+	struct asd_sas_phy	sas_phy;
+	struct sas_identify	identify;
+	struct timer_list	timer;
+	struct work_struct	phyup_ws;
+	u64		port_id; /* from hw */
+	u64		dev_sas_addr;
+	u64		phy_type;
+	u64		frame_rcvd_size;
+	u8		frame_rcvd[32];
+	u8		phy_attached;
+	u8		reserved[3];
+	enum sas_linkrate	minimum_linkrate;
+	enum sas_linkrate	maximum_linkrate;
+};
+
+struct hisi_sas_port {
+	struct asd_sas_port	sas_port;
+	u8	port_attached;
+	u8	id; /* from hw */
+	struct list_head	list;
+};
+
+struct hisi_sas_cq {
+	struct hisi_hba *hisi_hba;
+	int	id;
+};
+
+struct hisi_sas_device {
+	enum sas_device_type	dev_type;
+	struct hisi_hba		*hisi_hba;
+	struct domain_device	*sas_device;
+	u64 attached_phy;
+	u64 device_id;
+	u64 running_req;
+	u8 dev_status;
+};
+
+struct hisi_sas_slot {
+	struct list_head entry;
+	struct sas_task *task;
+	struct hisi_sas_port	*port;
+	u64	n_elem;
+	int	dlvry_queue;
+	int	dlvry_queue_slot;
+	int	cmplt_queue;
+	int	cmplt_queue_slot;
+	int	idx;
+	void	*cmd_hdr;
+	dma_addr_t cmd_hdr_dma;
+	void	*status_buffer;
+	dma_addr_t status_buffer_dma;
+	void *command_table;
+	dma_addr_t command_table_dma;
+	struct hisi_sas_sge_page *sge_page;
+	dma_addr_t sge_page_dma;
+};
+
+struct hisi_sas_tmf_task {
+	u8 tmf;
+	u16 tag_of_task_to_be_managed;
+};
+
+struct hisi_sas_hw {
+	int (*hw_init)(struct hisi_hba *hisi_hba);
+	void (*setup_itct)(struct hisi_hba *hisi_hba,
+			   struct hisi_sas_device *device);
+	void (*sl_notify)(struct hisi_hba *hisi_hba, int phy_no);
+	int (*get_free_slot)(struct hisi_hba *hisi_hba, int *q, int *s);
+	void (*start_delivery)(struct hisi_hba *hisi_hba);
+	int (*prep_ssp)(struct hisi_hba *hisi_hba,
+			struct hisi_sas_slot *slot, int is_tmf,
+			struct hisi_sas_tmf_task *tmf);
+	int (*prep_smp)(struct hisi_hba *hisi_hba,
+			struct hisi_sas_slot *slot);
+	int (*slot_complete)(struct hisi_hba *hisi_hba,
+			     struct hisi_sas_slot *slot, int abort);
+	void (*phy_enable)(struct hisi_hba *hisi_hba, int phy_no);
+	void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
+	void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
+	void (*free_device)(struct hisi_hba *hisi_hba,
+			    struct hisi_sas_device *dev);
+	int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
+	int complete_hdr_size;
+};
+
+struct hisi_hba {
+	/* This must be the first element, used by SHOST_TO_SAS_HA */
+	struct sas_ha_struct *p;
+
+	struct platform_device *pdev;
+	void __iomem *regs;
+	struct regmap *ctrl;
+	u32 ctrl_reset_reg;
+	u32 ctrl_reset_sts_reg;
+	u32 ctrl_clock_ena_reg;
+	u8 sas_addr[SAS_ADDR_SIZE];
+
+	int n_phy;
+	int scan_finished;
+	spinlock_t lock;
+
+	struct timer_list timer;
+	struct workqueue_struct *wq;
+
+	int slot_index_count;
+	unsigned long *slot_index_tags;
+
+	/* SCSI/SAS glue */
+	struct sas_ha_struct sha;
+	struct Scsi_Host *shost;
+
+	struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
+	struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
+	struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
+
+	int	queue_count;
+	int	queue;
+	struct hisi_sas_slot	*slot_prep;
+
+	struct dma_pool *sge_page_pool;
+	struct hisi_sas_device	devices[HISI_SAS_MAX_DEVICES];
+	struct dma_pool *command_table_pool;
+	struct dma_pool *status_buffer_pool;
+	struct hisi_sas_cmd_hdr	*cmd_hdr[HISI_SAS_MAX_QUEUES];
+	dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
+	void *complete_hdr[HISI_SAS_MAX_QUEUES];
+	dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
+	struct hisi_sas_initial_fis *initial_fis;
+	dma_addr_t initial_fis_dma;
+	struct hisi_sas_itct *itct;
+	dma_addr_t itct_dma;
+	struct hisi_sas_iost *iost;
+	dma_addr_t iost_dma;
+	struct hisi_sas_breakpoint *breakpoint;
+	dma_addr_t breakpoint_dma;
+	struct hisi_sas_breakpoint *sata_breakpoint;
+	dma_addr_t sata_breakpoint_dma;
+	struct hisi_sas_slot	*slot_info;
+	const struct hisi_sas_hw *hw;	/* Low level hw interface */
+};
+
+/* Generic HW DMA host memory structures */
+/* Delivery queue header */
+struct hisi_sas_cmd_hdr {
+	/* dw0 */
+	__le32 dw0;
+
+	/* dw1 */
+	__le32 dw1;
+
+	/* dw2 */
+	__le32 dw2;
+
+	/* dw3 */
+	__le32 transfer_tags;
+
+	/* dw4 */
+	__le32 data_transfer_len;
+
+	/* dw5 */
+	__le32 first_burst_num;
+
+	/* dw6 */
+	__le32 sg_len;
+
+	/* dw7 */
+	__le32 dw7;
+
+	/* dw8-9 */
+	__le64 cmd_table_addr;
+
+	/* dw10-11 */
+	__le64 sts_buffer_addr;
+
+	/* dw12-13 */
+	__le64 prd_table_addr;
+
+	/* dw14-15 */
+	__le64 dif_prd_table_addr;
+};
+
+struct hisi_sas_itct {
+	__le64 qw0;
+	__le64 sas_addr;
+	__le64 qw2;
+	__le64 qw3;
+	__le64 qw4;
+	__le64 qw_sata_ncq0_3;
+	__le64 qw_sata_ncq7_4;
+	__le64 qw_sata_ncq11_8;
+	__le64 qw_sata_ncq15_12;
+	__le64 qw_sata_ncq19_16;
+	__le64 qw_sata_ncq23_20;
+	__le64 qw_sata_ncq27_24;
+	__le64 qw_sata_ncq31_28;
+	__le64 qw_non_ncq_iptt;
+	__le64 qw_rsvd0;
+	__le64 qw_rsvd1;
+};
+
+struct hisi_sas_iost {
+	__le64 qw0;
+	__le64 qw1;
+	__le64 qw2;
+	__le64 qw3;
+};
+
+struct hisi_sas_err_record {
+	/* dw0 */
+	__le32 dma_err_type;
+
+	/* dw1 */
+	__le32 trans_tx_fail_type;
+
+	/* dw2 */
+	__le32 trans_rx_fail_type;
+
+	/* dw3 */
+	u32 rsvd;
+};
+
+struct hisi_sas_initial_fis {
+	struct hisi_sas_err_record err_record;
+	struct dev_to_host_fis fis;
+	u32 rsvd[3];
+};
+
+struct hisi_sas_breakpoint {
+	u8	data[128];	/*io128 byte*/
+};
+
+struct hisi_sas_sge {
+	__le64 addr;
+	__le32 page_ctrl_0;
+	__le32 page_ctrl_1;
+	__le32 data_len;
+	__le32 data_off;
+};
+
+struct hisi_sas_command_table_smp {
+	u8 bytes[44];
+};
+
+struct hisi_sas_command_table_stp {
+	struct	host_to_dev_fis command_fis;
+	u8	dummy[12];
+	u8	atapi_cdb[ATAPI_CDB_LEN];
+};
+
+#define HISI_SAS_SGE_PAGE_CNT SCSI_MAX_SG_SEGMENTS
+struct hisi_sas_sge_page {
+	struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
+};
+
+struct hisi_sas_command_table_ssp {
+	struct ssp_frame_hdr hdr;
+	union {
+		struct {
+			struct ssp_command_iu task;
+			u32 prot[6];
+		};
+		struct ssp_tmf_iu ssp_task;
+		struct xfer_rdy_iu xfer_rdy;
+		struct ssp_response_iu ssp_res;
+	} u;
+};
+
+union hisi_sas_command_table {
+	struct hisi_sas_command_table_ssp ssp;
+	struct hisi_sas_command_table_smp smp;
+	struct hisi_sas_command_table_stp stp;
+};
+extern int hisi_sas_probe(struct platform_device *pdev,
+			  const struct hisi_sas_hw *ops);
+extern int hisi_sas_remove(struct platform_device *pdev);
+
+extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy);
+extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
+				    struct sas_task *task,
+				    struct hisi_sas_slot *slot);
+#endif
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
new file mode 100644
index 000000000000..99b1950d751c
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -0,0 +1,1358 @@
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas"
+
+#define DEV_IS_EXPANDER(type) \
+	((type == SAS_EDGE_EXPANDER_DEVICE) || \
+	(type == SAS_FANOUT_EXPANDER_DEVICE))
+
+#define DEV_IS_GONE(dev) \
+	((!dev) || (dev->dev_type == SAS_PHY_UNUSED))
+
+static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device)
+{
+	return device->port->ha->lldd_ha;
+}
+
+static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx)
+{
+	void *bitmap = hisi_hba->slot_index_tags;
+
+	clear_bit(slot_idx, bitmap);
+}
+
+static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx)
+{
+	hisi_sas_slot_index_clear(hisi_hba, slot_idx);
+}
+
+static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx)
+{
+	void *bitmap = hisi_hba->slot_index_tags;
+
+	set_bit(slot_idx, bitmap);
+}
+
+static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx)
+{
+	unsigned int index;
+	void *bitmap = hisi_hba->slot_index_tags;
+
+	index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count);
+	if (index >= hisi_hba->slot_index_count)
+		return -SAS_QUEUE_FULL;
+	hisi_sas_slot_index_set(hisi_hba, index);
+	*slot_idx = index;
+	return 0;
+}
+
+static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba)
+{
+	int i;
+
+	for (i = 0; i < hisi_hba->slot_index_count; ++i)
+		hisi_sas_slot_index_clear(hisi_hba, i);
+}
+
+void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
+			     struct hisi_sas_slot *slot)
+{
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	if (!slot->task)
+		return;
+
+	if (!sas_protocol_ata(task->task_proto))
+		if (slot->n_elem)
+			dma_unmap_sg(dev, task->scatter, slot->n_elem,
+				     task->data_dir);
+
+	if (slot->command_table)
+		dma_pool_free(hisi_hba->command_table_pool,
+			      slot->command_table, slot->command_table_dma);
+
+	if (slot->status_buffer)
+		dma_pool_free(hisi_hba->status_buffer_pool,
+			      slot->status_buffer, slot->status_buffer_dma);
+
+	if (slot->sge_page)
+		dma_pool_free(hisi_hba->sge_page_pool, slot->sge_page,
+			      slot->sge_page_dma);
+
+	list_del_init(&slot->entry);
+	task->lldd_task = NULL;
+	slot->task = NULL;
+	slot->port = NULL;
+	hisi_sas_slot_index_free(hisi_hba, slot->idx);
+	memset(slot, 0, sizeof(*slot));
+}
+EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free);
+
+static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba,
+				  struct hisi_sas_slot *slot)
+{
+	return hisi_hba->hw->prep_smp(hisi_hba, slot);
+}
+
+static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba,
+				  struct hisi_sas_slot *slot, int is_tmf,
+				  struct hisi_sas_tmf_task *tmf)
+{
+	return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf);
+}
+
+static int hisi_sas_task_prep(struct sas_task *task, struct hisi_hba *hisi_hba,
+			      int is_tmf, struct hisi_sas_tmf_task *tmf,
+			      int *pass)
+{
+	struct domain_device *device = task->dev;
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_sas_port *port;
+	struct hisi_sas_slot *slot;
+	struct hisi_sas_cmd_hdr	*cmd_hdr_base;
+	struct device *dev = &hisi_hba->pdev->dev;
+	int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx;
+
+	if (!device->port) {
+		struct task_status_struct *ts = &task->task_status;
+
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_PHY_DOWN;
+		/*
+		 * libsas will use dev->port, should
+		 * not call task_done for sata
+		 */
+		if (device->dev_type != SAS_SATA_DEV)
+			task->task_done(task);
+		return 0;
+	}
+
+	if (DEV_IS_GONE(sas_dev)) {
+		if (sas_dev)
+			dev_info(dev, "task prep: device %llu not ready\n",
+				 sas_dev->device_id);
+		else
+			dev_info(dev, "task prep: device %016llx not ready\n",
+				 SAS_ADDR(device->sas_addr));
+
+		rc = SAS_PHY_DOWN;
+		return rc;
+	}
+	port = device->port->lldd_port;
+	if (port && !port->port_attached && !tmf) {
+		if (sas_protocol_ata(task->task_proto)) {
+			struct task_status_struct *ts = &task->task_status;
+
+			dev_info(dev,
+				 "task prep: SATA/STP port%d not attach device\n",
+				 device->port->id);
+			ts->resp = SAS_TASK_COMPLETE;
+			ts->stat = SAS_PHY_DOWN;
+			task->task_done(task);
+		} else {
+			struct task_status_struct *ts = &task->task_status;
+
+			dev_info(dev,
+				 "task prep: SAS port%d does not attach device\n",
+				 device->port->id);
+			ts->resp = SAS_TASK_UNDELIVERED;
+			ts->stat = SAS_PHY_DOWN;
+			task->task_done(task);
+		}
+		return 0;
+	}
+
+	if (!sas_protocol_ata(task->task_proto)) {
+		if (task->num_scatter) {
+			n_elem = dma_map_sg(dev, task->scatter,
+					    task->num_scatter, task->data_dir);
+			if (!n_elem) {
+				rc = -ENOMEM;
+				goto prep_out;
+			}
+		}
+	} else
+		n_elem = task->num_scatter;
+
+	rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx);
+	if (rc)
+		goto err_out;
+	rc = hisi_hba->hw->get_free_slot(hisi_hba, &dlvry_queue,
+					 &dlvry_queue_slot);
+	if (rc)
+		goto err_out_tag;
+
+	slot = &hisi_hba->slot_info[slot_idx];
+	memset(slot, 0, sizeof(struct hisi_sas_slot));
+
+	slot->idx = slot_idx;
+	slot->n_elem = n_elem;
+	slot->dlvry_queue = dlvry_queue;
+	slot->dlvry_queue_slot = dlvry_queue_slot;
+	cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue];
+	slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot];
+	slot->task = task;
+	slot->port = port;
+	task->lldd_task = slot;
+
+	slot->status_buffer = dma_pool_alloc(hisi_hba->status_buffer_pool,
+					     GFP_ATOMIC,
+					     &slot->status_buffer_dma);
+	if (!slot->status_buffer) {
+		rc = -ENOMEM;
+		goto err_out_slot_buf;
+	}
+	memset(slot->status_buffer, 0, HISI_SAS_STATUS_BUF_SZ);
+
+	slot->command_table = dma_pool_alloc(hisi_hba->command_table_pool,
+					     GFP_ATOMIC,
+					     &slot->command_table_dma);
+	if (!slot->command_table) {
+		rc = -ENOMEM;
+		goto err_out_status_buf;
+	}
+	memset(slot->command_table, 0, HISI_SAS_COMMAND_TABLE_SZ);
+	memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr));
+
+	switch (task->task_proto) {
+	case SAS_PROTOCOL_SMP:
+		rc = hisi_sas_task_prep_smp(hisi_hba, slot);
+		break;
+	case SAS_PROTOCOL_SSP:
+		rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf);
+		break;
+	case SAS_PROTOCOL_SATA:
+	case SAS_PROTOCOL_STP:
+	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+	default:
+		dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n",
+			task->task_proto);
+		rc = -EINVAL;
+		break;
+	}
+
+	if (rc) {
+		dev_err(dev, "task prep: rc = 0x%x\n", rc);
+		if (slot->sge_page)
+			goto err_out_sge;
+		goto err_out_command_table;
+	}
+
+	list_add_tail(&slot->entry, &port->list);
+	spin_lock(&task->task_state_lock);
+	task->task_state_flags |= SAS_TASK_AT_INITIATOR;
+	spin_unlock(&task->task_state_lock);
+
+	hisi_hba->slot_prep = slot;
+
+	sas_dev->running_req++;
+	++(*pass);
+
+	return 0;
+
+err_out_sge:
+	dma_pool_free(hisi_hba->sge_page_pool, slot->sge_page,
+		slot->sge_page_dma);
+err_out_command_table:
+	dma_pool_free(hisi_hba->command_table_pool, slot->command_table,
+		slot->command_table_dma);
+err_out_status_buf:
+	dma_pool_free(hisi_hba->status_buffer_pool, slot->status_buffer,
+		slot->status_buffer_dma);
+err_out_slot_buf:
+	/* Nothing to be done */
+err_out_tag:
+	hisi_sas_slot_index_free(hisi_hba, slot_idx);
+err_out:
+	dev_err(dev, "task prep: failed[%d]!\n", rc);
+	if (!sas_protocol_ata(task->task_proto))
+		if (n_elem)
+			dma_unmap_sg(dev, task->scatter, n_elem,
+				     task->data_dir);
+prep_out:
+	return rc;
+}
+
+static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags,
+			      int is_tmf, struct hisi_sas_tmf_task *tmf)
+{
+	u32 rc;
+	u32 pass = 0;
+	unsigned long flags;
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev);
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	/* protect task_prep and start_delivery sequence */
+	spin_lock_irqsave(&hisi_hba->lock, flags);
+	rc = hisi_sas_task_prep(task, hisi_hba, is_tmf, tmf, &pass);
+	if (rc)
+		dev_err(dev, "task exec: failed[%d]!\n", rc);
+
+	if (likely(pass))
+		hisi_hba->hw->start_delivery(hisi_hba);
+	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+
+	return rc;
+}
+
+static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no)
+{
+	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	struct sas_ha_struct *sas_ha;
+
+	if (!phy->phy_attached)
+		return;
+
+	sas_ha = &hisi_hba->sha;
+	sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE);
+
+	if (sas_phy->phy) {
+		struct sas_phy *sphy = sas_phy->phy;
+
+		sphy->negotiated_linkrate = sas_phy->linkrate;
+		sphy->minimum_linkrate = phy->minimum_linkrate;
+		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
+		sphy->maximum_linkrate = phy->maximum_linkrate;
+	}
+
+	if (phy->phy_type & PORT_TYPE_SAS) {
+		struct sas_identify_frame *id;
+
+		id = (struct sas_identify_frame *)phy->frame_rcvd;
+		id->dev_type = phy->identify.device_type;
+		id->initiator_bits = SAS_PROTOCOL_ALL;
+		id->target_bits = phy->identify.target_port_protocols;
+	} else if (phy->phy_type & PORT_TYPE_SATA) {
+		/*Nothing*/
+	}
+
+	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
+	sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED);
+}
+
+static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device)
+{
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	struct hisi_sas_device *sas_dev = NULL;
+	int i;
+
+	spin_lock(&hisi_hba->lock);
+	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+		if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
+			hisi_hba->devices[i].device_id = i;
+			sas_dev = &hisi_hba->devices[i];
+			sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+			sas_dev->dev_type = device->dev_type;
+			sas_dev->hisi_hba = hisi_hba;
+			sas_dev->sas_device = device;
+			break;
+		}
+	}
+	spin_unlock(&hisi_hba->lock);
+
+	return sas_dev;
+}
+
+static int hisi_sas_dev_found(struct domain_device *device)
+{
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	struct domain_device *parent_dev = device->parent;
+	struct hisi_sas_device *sas_dev;
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	sas_dev = hisi_sas_alloc_dev(device);
+	if (!sas_dev) {
+		dev_err(dev, "fail alloc dev: max support %d devices\n",
+			HISI_SAS_MAX_DEVICES);
+		return -EINVAL;
+	}
+
+	device->lldd_dev = sas_dev;
+	hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
+
+	if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) {
+		int phy_no;
+		u8 phy_num = parent_dev->ex_dev.num_phys;
+		struct ex_phy *phy;
+
+		for (phy_no = 0; phy_no < phy_num; phy_no++) {
+			phy = &parent_dev->ex_dev.ex_phy[phy_no];
+			if (SAS_ADDR(phy->attached_sas_addr) ==
+				SAS_ADDR(device->sas_addr)) {
+				sas_dev->attached_phy = phy_no;
+				break;
+			}
+		}
+
+		if (phy_no == phy_num) {
+			dev_info(dev, "dev found: no attached "
+				 "dev:%016llx at ex:%016llx\n",
+				 SAS_ADDR(device->sas_addr),
+				 SAS_ADDR(parent_dev->sas_addr));
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static void hisi_sas_scan_start(struct Scsi_Host *shost)
+{
+	struct hisi_hba *hisi_hba = shost_priv(shost);
+	int i;
+
+	for (i = 0; i < hisi_hba->n_phy; ++i)
+		hisi_sas_bytes_dmaed(hisi_hba, i);
+
+	hisi_hba->scan_finished = 1;
+}
+
+static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+	struct hisi_hba *hisi_hba = shost_priv(shost);
+	struct sas_ha_struct *sha = &hisi_hba->sha;
+
+	if (hisi_hba->scan_finished == 0)
+		return 0;
+
+	sas_drain_work(sha);
+	return 1;
+}
+
+static void hisi_sas_phyup_work(struct work_struct *work)
+{
+	struct hisi_sas_phy *phy =
+		container_of(work, struct hisi_sas_phy, phyup_ws);
+	struct hisi_hba *hisi_hba = phy->hisi_hba;
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	int phy_no = sas_phy->id;
+
+	hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */
+	hisi_sas_bytes_dmaed(hisi_hba, phy_no);
+}
+
+static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
+{
+	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+	phy->hisi_hba = hisi_hba;
+	phy->port = NULL;
+	init_timer(&phy->timer);
+	sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0;
+	sas_phy->class = SAS;
+	sas_phy->iproto = SAS_PROTOCOL_ALL;
+	sas_phy->tproto = 0;
+	sas_phy->type = PHY_TYPE_PHYSICAL;
+	sas_phy->role = PHY_ROLE_INITIATOR;
+	sas_phy->oob_mode = OOB_NOT_CONNECTED;
+	sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
+	sas_phy->id = phy_no;
+	sas_phy->sas_addr = &hisi_hba->sas_addr[0];
+	sas_phy->frame_rcvd = &phy->frame_rcvd[0];
+	sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata;
+	sas_phy->lldd_phy = phy;
+
+	INIT_WORK(&phy->phyup_ws, hisi_sas_phyup_work);
+}
+
+static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy)
+{
+	struct sas_ha_struct *sas_ha = sas_phy->ha;
+	struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+	struct hisi_sas_phy *phy = sas_phy->lldd_phy;
+	struct asd_sas_port *sas_port = sas_phy->port;
+	struct hisi_sas_port *port = &hisi_hba->port[sas_phy->id];
+	unsigned long flags;
+
+	if (!sas_port)
+		return;
+
+	spin_lock_irqsave(&hisi_hba->lock, flags);
+	port->port_attached = 1;
+	port->id = phy->port_id;
+	phy->port = port;
+	sas_port->lldd_port = port;
+	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+}
+
+static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, int phy_no,
+				     struct domain_device *device)
+{
+	struct hisi_sas_phy *phy;
+	struct hisi_sas_port *port;
+	struct hisi_sas_slot *slot, *slot2;
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	phy = &hisi_hba->phy[phy_no];
+	port = phy->port;
+	if (!port)
+		return;
+
+	list_for_each_entry_safe(slot, slot2, &port->list, entry) {
+		struct sas_task *task;
+
+		task = slot->task;
+		if (device && task->dev != device)
+			continue;
+
+		dev_info(dev, "Release slot [%d:%d], task [%p]:\n",
+			 slot->dlvry_queue, slot->dlvry_queue_slot, task);
+		hisi_hba->hw->slot_complete(hisi_hba, slot, 1);
+	}
+}
+
+static void hisi_sas_port_notify_deformed(struct asd_sas_phy *sas_phy)
+{
+	struct domain_device *device;
+	struct hisi_sas_phy *phy = sas_phy->lldd_phy;
+	struct asd_sas_port *sas_port = sas_phy->port;
+
+	list_for_each_entry(device, &sas_port->dev_list, dev_list_node)
+		hisi_sas_do_release_task(phy->hisi_hba, sas_phy->id, device);
+}
+
+static void hisi_sas_release_task(struct hisi_hba *hisi_hba,
+			struct domain_device *device)
+{
+	struct asd_sas_port *port = device->port;
+	struct asd_sas_phy *sas_phy;
+
+	list_for_each_entry(sas_phy, &port->phy_list, port_phy_el)
+		hisi_sas_do_release_task(hisi_hba, sas_phy->id, device);
+}
+
+static void hisi_sas_dev_gone(struct domain_device *device)
+{
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	struct device *dev = &hisi_hba->pdev->dev;
+	u64 dev_id = sas_dev->device_id;
+
+	dev_info(dev, "found dev[%lld:%x] is gone\n",
+		 sas_dev->device_id, sas_dev->dev_type);
+
+	hisi_hba->hw->free_device(hisi_hba, sas_dev);
+	device->lldd_dev = NULL;
+	memset(sas_dev, 0, sizeof(*sas_dev));
+	sas_dev->device_id = dev_id;
+	sas_dev->dev_type = SAS_PHY_UNUSED;
+	sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+}
+
+static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags)
+{
+	return hisi_sas_task_exec(task, gfp_flags, 0, NULL);
+}
+
+static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func,
+				void *funcdata)
+{
+	struct sas_ha_struct *sas_ha = sas_phy->ha;
+	struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+	int phy_no = sas_phy->id;
+
+	switch (func) {
+	case PHY_FUNC_HARD_RESET:
+		hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no);
+		break;
+
+	case PHY_FUNC_LINK_RESET:
+		hisi_hba->hw->phy_enable(hisi_hba, phy_no);
+		hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no);
+		break;
+
+	case PHY_FUNC_DISABLE:
+		hisi_hba->hw->phy_disable(hisi_hba, phy_no);
+		break;
+
+	case PHY_FUNC_SET_LINK_RATE:
+	case PHY_FUNC_RELEASE_SPINUP_HOLD:
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static void hisi_sas_task_done(struct sas_task *task)
+{
+	if (!del_timer(&task->slow_task->timer))
+		return;
+	complete(&task->slow_task->completion);
+}
+
+static void hisi_sas_tmf_timedout(unsigned long data)
+{
+	struct sas_task *task = (struct sas_task *)data;
+
+	task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+	complete(&task->slow_task->completion);
+}
+
+#define TASK_TIMEOUT 20
+#define TASK_RETRY 3
+static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
+					   void *parameter, u32 para_len,
+					   struct hisi_sas_tmf_task *tmf)
+{
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct sas_task *task;
+	int res, retry;
+
+	for (retry = 0; retry < TASK_RETRY; retry++) {
+		task = sas_alloc_slow_task(GFP_KERNEL);
+		if (!task)
+			return -ENOMEM;
+
+		task->dev = device;
+		task->task_proto = device->tproto;
+
+		memcpy(&task->ssp_task, parameter, para_len);
+		task->task_done = hisi_sas_task_done;
+
+		task->slow_task->timer.data = (unsigned long) task;
+		task->slow_task->timer.function = hisi_sas_tmf_timedout;
+		task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ;
+		add_timer(&task->slow_task->timer);
+
+		res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf);
+
+		if (res) {
+			del_timer(&task->slow_task->timer);
+			dev_err(dev, "abort tmf: executing internal task failed: %d\n",
+				res);
+			goto ex_err;
+		}
+
+		wait_for_completion(&task->slow_task->completion);
+		res = TMF_RESP_FUNC_FAILED;
+		/* Even TMF timed out, return direct. */
+		if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
+			if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+				dev_err(dev, "abort tmf: TMF task[%d] timeout\n",
+					tmf->tag_of_task_to_be_managed);
+				if (task->lldd_task) {
+					struct hisi_sas_slot *slot =
+						task->lldd_task;
+
+					hisi_sas_slot_task_free(hisi_hba,
+								task, slot);
+				}
+
+				goto ex_err;
+			}
+		}
+
+		if (task->task_status.resp == SAS_TASK_COMPLETE &&
+		    task->task_status.stat == SAM_STAT_GOOD) {
+			res = TMF_RESP_FUNC_COMPLETE;
+			break;
+		}
+
+		if (task->task_status.resp == SAS_TASK_COMPLETE &&
+		      task->task_status.stat == SAS_DATA_UNDERRUN) {
+			/* no error, but return the number of bytes of
+			 * underrun
+			 */
+			dev_warn(dev, "abort tmf: task to dev %016llx "
+				 "resp: 0x%x sts 0x%x underrun\n",
+				 SAS_ADDR(device->sas_addr),
+				 task->task_status.resp,
+				 task->task_status.stat);
+			res = task->task_status.residual;
+			break;
+		}
+
+		if (task->task_status.resp == SAS_TASK_COMPLETE &&
+			task->task_status.stat == SAS_DATA_OVERRUN) {
+			dev_warn(dev, "abort tmf: blocked task error\n");
+			res = -EMSGSIZE;
+			break;
+		}
+
+		dev_warn(dev, "abort tmf: task to dev "
+			 "%016llx resp: 0x%x status 0x%x\n",
+			 SAS_ADDR(device->sas_addr), task->task_status.resp,
+			 task->task_status.stat);
+		sas_free_task(task);
+		task = NULL;
+	}
+ex_err:
+	WARN_ON(retry == TASK_RETRY);
+	sas_free_task(task);
+	return res;
+}
+
+static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
+				u8 *lun, struct hisi_sas_tmf_task *tmf)
+{
+	struct sas_ssp_task ssp_task;
+
+	if (!(device->tproto & SAS_PROTOCOL_SSP))
+		return TMF_RESP_FUNC_ESUPP;
+
+	memcpy(ssp_task.LUN, lun, 8);
+
+	return hisi_sas_exec_internal_tmf_task(device, &ssp_task,
+				sizeof(ssp_task), tmf);
+}
+
+static int hisi_sas_abort_task(struct sas_task *task)
+{
+	struct scsi_lun lun;
+	struct hisi_sas_tmf_task tmf_task;
+	struct domain_device *device = task->dev;
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev);
+	struct device *dev = &hisi_hba->pdev->dev;
+	int rc = TMF_RESP_FUNC_FAILED;
+	unsigned long flags;
+
+	if (!sas_dev) {
+		dev_warn(dev, "Device has been removed\n");
+		return TMF_RESP_FUNC_FAILED;
+	}
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		rc = TMF_RESP_FUNC_COMPLETE;
+		goto out;
+	}
+
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+	sas_dev->dev_status = HISI_SAS_DEV_EH;
+	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
+		struct scsi_cmnd *cmnd = task->uldd_task;
+		struct hisi_sas_slot *slot = task->lldd_task;
+		u32 tag = slot->idx;
+
+		int_to_scsilun(cmnd->device->lun, &lun);
+		tmf_task.tmf = TMF_ABORT_TASK;
+		tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);
+
+		rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun,
+						  &tmf_task);
+
+		/* if successful, clear the task and callback forwards.*/
+		if (rc == TMF_RESP_FUNC_COMPLETE) {
+			if (task->lldd_task) {
+				struct hisi_sas_slot *slot;
+
+				slot = &hisi_hba->slot_info
+					[tmf_task.tag_of_task_to_be_managed];
+				spin_lock_irqsave(&hisi_hba->lock, flags);
+				hisi_hba->hw->slot_complete(hisi_hba, slot, 1);
+				spin_unlock_irqrestore(&hisi_hba->lock, flags);
+			}
+		}
+
+	} else if (task->task_proto & SAS_PROTOCOL_SATA ||
+		task->task_proto & SAS_PROTOCOL_STP) {
+		if (task->dev->dev_type == SAS_SATA_DEV) {
+			struct hisi_slot_info *slot = task->lldd_task;
+
+			dev_notice(dev, "abort task: hba=%p task=%p slot=%p\n",
+				   hisi_hba, task, slot);
+			task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+			rc = TMF_RESP_FUNC_COMPLETE;
+			goto out;
+		}
+
+	}
+
+out:
+	if (rc != TMF_RESP_FUNC_COMPLETE)
+		dev_notice(dev, "abort task: rc=%d\n", rc);
+	return rc;
+}
+
+static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
+{
+	struct hisi_sas_tmf_task tmf_task;
+	int rc = TMF_RESP_FUNC_FAILED;
+
+	tmf_task.tmf = TMF_ABORT_TASK_SET;
+	rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+
+	return rc;
+}
+
+static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun)
+{
+	int rc = TMF_RESP_FUNC_FAILED;
+	struct hisi_sas_tmf_task tmf_task;
+
+	tmf_task.tmf = TMF_CLEAR_ACA;
+	rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+
+	return rc;
+}
+
+static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device)
+{
+	struct sas_phy *phy = sas_get_local_phy(device);
+	int rc, reset_type = (device->dev_type == SAS_SATA_DEV ||
+			(device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
+	rc = sas_phy_reset(phy, reset_type);
+	sas_put_local_phy(phy);
+	msleep(2000);
+	return rc;
+}
+
+static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
+{
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	unsigned long flags;
+	int rc = TMF_RESP_FUNC_FAILED;
+
+	if (sas_dev->dev_status != HISI_SAS_DEV_EH)
+		return TMF_RESP_FUNC_FAILED;
+	sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
+
+	rc = hisi_sas_debug_I_T_nexus_reset(device);
+
+	spin_lock_irqsave(&hisi_hba->lock, flags);
+	hisi_sas_release_task(hisi_hba, device);
+	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+
+	return 0;
+}
+
+static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
+{
+	struct hisi_sas_tmf_task tmf_task;
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	struct device *dev = &hisi_hba->pdev->dev;
+	unsigned long flags;
+	int rc = TMF_RESP_FUNC_FAILED;
+
+	tmf_task.tmf = TMF_LU_RESET;
+	sas_dev->dev_status = HISI_SAS_DEV_EH;
+	rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
+	if (rc == TMF_RESP_FUNC_COMPLETE) {
+		spin_lock_irqsave(&hisi_hba->lock, flags);
+		hisi_sas_release_task(hisi_hba, device);
+		spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	}
+
+	/* If failed, fall-through I_T_Nexus reset */
+	dev_err(dev, "lu_reset: for device[%llx]:rc= %d\n",
+		sas_dev->device_id, rc);
+	return rc;
+}
+
+static int hisi_sas_query_task(struct sas_task *task)
+{
+	struct scsi_lun lun;
+	struct hisi_sas_tmf_task tmf_task;
+	int rc = TMF_RESP_FUNC_FAILED;
+
+	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
+		struct scsi_cmnd *cmnd = task->uldd_task;
+		struct domain_device *device = task->dev;
+		struct hisi_sas_slot *slot = task->lldd_task;
+		u32 tag = slot->idx;
+
+		int_to_scsilun(cmnd->device->lun, &lun);
+		tmf_task.tmf = TMF_QUERY_TASK;
+		tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);
+
+		rc = hisi_sas_debug_issue_ssp_tmf(device,
+						  lun.scsi_lun,
+						  &tmf_task);
+		switch (rc) {
+		/* The task is still in Lun, release it then */
+		case TMF_RESP_FUNC_SUCC:
+		/* The task is not in Lun or failed, reset the phy */
+		case TMF_RESP_FUNC_FAILED:
+		case TMF_RESP_FUNC_COMPLETE:
+			break;
+		}
+	}
+	return rc;
+}
+
+static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
+{
+	hisi_sas_port_notify_formed(sas_phy);
+}
+
+static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy)
+{
+	hisi_sas_port_notify_deformed(sas_phy);
+}
+
+static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
+{
+	phy->phy_attached = 0;
+	phy->phy_type = 0;
+	phy->port = NULL;
+}
+
+void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy)
+{
+	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	struct sas_ha_struct *sas_ha = &hisi_hba->sha;
+
+	if (rdy) {
+		/* Phy down but ready */
+		hisi_sas_bytes_dmaed(hisi_hba, phy_no);
+		hisi_sas_port_notify_formed(sas_phy);
+	} else {
+		struct hisi_sas_port *port  = phy->port;
+
+		/* Phy down and not ready */
+		sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL);
+		sas_phy_disconnected(sas_phy);
+
+		if (port) {
+			if (phy->phy_type & PORT_TYPE_SAS) {
+				int port_id = port->id;
+
+				if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba,
+								       port_id))
+					port->port_attached = 0;
+			} else if (phy->phy_type & PORT_TYPE_SATA)
+				port->port_attached = 0;
+		}
+		hisi_sas_phy_disconnected(phy);
+	}
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_down);
+
+static struct scsi_transport_template *hisi_sas_stt;
+
+static struct scsi_host_template hisi_sas_sht = {
+	.module			= THIS_MODULE,
+	.name			= DRV_NAME,
+	.queuecommand		= sas_queuecommand,
+	.target_alloc		= sas_target_alloc,
+	.slave_configure	= sas_slave_configure,
+	.scan_finished		= hisi_sas_scan_finished,
+	.scan_start		= hisi_sas_scan_start,
+	.change_queue_depth	= sas_change_queue_depth,
+	.bios_param		= sas_bios_param,
+	.can_queue		= 1,
+	.this_id		= -1,
+	.sg_tablesize		= SG_ALL,
+	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
+	.use_clustering		= ENABLE_CLUSTERING,
+	.eh_device_reset_handler = sas_eh_device_reset_handler,
+	.eh_bus_reset_handler	= sas_eh_bus_reset_handler,
+	.target_destroy		= sas_target_destroy,
+	.ioctl			= sas_ioctl,
+};
+
+static struct sas_domain_function_template hisi_sas_transport_ops = {
+	.lldd_dev_found		= hisi_sas_dev_found,
+	.lldd_dev_gone		= hisi_sas_dev_gone,
+	.lldd_execute_task	= hisi_sas_queue_command,
+	.lldd_control_phy	= hisi_sas_control_phy,
+	.lldd_abort_task	= hisi_sas_abort_task,
+	.lldd_abort_task_set	= hisi_sas_abort_task_set,
+	.lldd_clear_aca		= hisi_sas_clear_aca,
+	.lldd_I_T_nexus_reset	= hisi_sas_I_T_nexus_reset,
+	.lldd_lu_reset		= hisi_sas_lu_reset,
+	.lldd_query_task	= hisi_sas_query_task,
+	.lldd_port_formed	= hisi_sas_port_formed,
+	.lldd_port_deformed	= hisi_sas_port_deformed,
+};
+
+static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
+{
+	int i, s;
+	struct platform_device *pdev = hisi_hba->pdev;
+	struct device *dev = &pdev->dev;
+
+	spin_lock_init(&hisi_hba->lock);
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		hisi_sas_phy_init(hisi_hba, i);
+		hisi_hba->port[i].port_attached = 0;
+		hisi_hba->port[i].id = -1;
+		INIT_LIST_HEAD(&hisi_hba->port[i].list);
+	}
+
+	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
+		hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED;
+		hisi_hba->devices[i].device_id = i;
+		hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL;
+	}
+
+	for (i = 0; i < hisi_hba->queue_count; i++) {
+		struct hisi_sas_cq *cq = &hisi_hba->cq[i];
+
+		/* Completion queue structure */
+		cq->id = i;
+		cq->hisi_hba = hisi_hba;
+
+		/* Delivery queue */
+		s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+		hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s,
+					&hisi_hba->cmd_hdr_dma[i], GFP_KERNEL);
+		if (!hisi_hba->cmd_hdr[i])
+			goto err_out;
+		memset(hisi_hba->cmd_hdr[i], 0, s);
+
+		/* Completion queue */
+		s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+		hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s,
+				&hisi_hba->complete_hdr_dma[i], GFP_KERNEL);
+		if (!hisi_hba->complete_hdr[i])
+			goto err_out;
+		memset(hisi_hba->complete_hdr[i], 0, s);
+	}
+
+	s = HISI_SAS_STATUS_BUF_SZ;
+	hisi_hba->status_buffer_pool = dma_pool_create("status_buffer",
+						       dev, s, 16, 0);
+	if (!hisi_hba->status_buffer_pool)
+		goto err_out;
+
+	s = HISI_SAS_COMMAND_TABLE_SZ;
+	hisi_hba->command_table_pool = dma_pool_create("command_table",
+						       dev, s, 16, 0);
+	if (!hisi_hba->command_table_pool)
+		goto err_out;
+
+	s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+	hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma,
+					    GFP_KERNEL);
+	if (!hisi_hba->itct)
+		goto err_out;
+
+	memset(hisi_hba->itct, 0, s);
+
+	hisi_hba->slot_info = devm_kcalloc(dev, HISI_SAS_COMMAND_ENTRIES,
+					   sizeof(struct hisi_sas_slot),
+					   GFP_KERNEL);
+	if (!hisi_hba->slot_info)
+		goto err_out;
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost);
+	hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma,
+					    GFP_KERNEL);
+	if (!hisi_hba->iost)
+		goto err_out;
+
+	memset(hisi_hba->iost, 0, s);
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint);
+	hisi_hba->breakpoint = dma_alloc_coherent(dev, s,
+				&hisi_hba->breakpoint_dma, GFP_KERNEL);
+	if (!hisi_hba->breakpoint)
+		goto err_out;
+
+	memset(hisi_hba->breakpoint, 0, s);
+
+	hisi_hba->slot_index_count = HISI_SAS_COMMAND_ENTRIES;
+	s = hisi_hba->slot_index_count / sizeof(unsigned long);
+	hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL);
+	if (!hisi_hba->slot_index_tags)
+		goto err_out;
+
+	hisi_hba->sge_page_pool = dma_pool_create("status_sge", dev,
+				sizeof(struct hisi_sas_sge_page), 16, 0);
+	if (!hisi_hba->sge_page_pool)
+		goto err_out;
+
+	s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS;
+	hisi_hba->initial_fis = dma_alloc_coherent(dev, s,
+				&hisi_hba->initial_fis_dma, GFP_KERNEL);
+	if (!hisi_hba->initial_fis)
+		goto err_out;
+	memset(hisi_hba->initial_fis, 0, s);
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2;
+	hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s,
+				&hisi_hba->sata_breakpoint_dma, GFP_KERNEL);
+	if (!hisi_hba->sata_breakpoint)
+		goto err_out;
+	memset(hisi_hba->sata_breakpoint, 0, s);
+
+	hisi_sas_slot_index_init(hisi_hba);
+
+	hisi_hba->wq = create_singlethread_workqueue(dev_name(dev));
+	if (!hisi_hba->wq) {
+		dev_err(dev, "sas_alloc: failed to create workqueue\n");
+		goto err_out;
+	}
+
+	return 0;
+err_out:
+	return -ENOMEM;
+}
+
+static void hisi_sas_free(struct hisi_hba *hisi_hba)
+{
+	struct device *dev = &hisi_hba->pdev->dev;
+	int i, s;
+
+	for (i = 0; i < hisi_hba->queue_count; i++) {
+		s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
+		if (hisi_hba->cmd_hdr[i])
+			dma_free_coherent(dev, s,
+					  hisi_hba->cmd_hdr[i],
+					  hisi_hba->cmd_hdr_dma[i]);
+
+		s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
+		if (hisi_hba->complete_hdr[i])
+			dma_free_coherent(dev, s,
+					  hisi_hba->complete_hdr[i],
+					  hisi_hba->complete_hdr_dma[i]);
+	}
+
+	dma_pool_destroy(hisi_hba->status_buffer_pool);
+	dma_pool_destroy(hisi_hba->command_table_pool);
+	dma_pool_destroy(hisi_hba->sge_page_pool);
+
+	s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
+	if (hisi_hba->itct)
+		dma_free_coherent(dev, s,
+				  hisi_hba->itct, hisi_hba->itct_dma);
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost);
+	if (hisi_hba->iost)
+		dma_free_coherent(dev, s,
+				  hisi_hba->iost, hisi_hba->iost_dma);
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint);
+	if (hisi_hba->breakpoint)
+		dma_free_coherent(dev, s,
+				  hisi_hba->breakpoint,
+				  hisi_hba->breakpoint_dma);
+
+
+	s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS;
+	if (hisi_hba->initial_fis)
+		dma_free_coherent(dev, s,
+				  hisi_hba->initial_fis,
+				  hisi_hba->initial_fis_dma);
+
+	s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2;
+	if (hisi_hba->sata_breakpoint)
+		dma_free_coherent(dev, s,
+				  hisi_hba->sata_breakpoint,
+				  hisi_hba->sata_breakpoint_dma);
+
+	if (hisi_hba->wq)
+		destroy_workqueue(hisi_hba->wq);
+}
+
+static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
+					      const struct hisi_sas_hw *hw)
+{
+	struct resource *res;
+	struct Scsi_Host *shost;
+	struct hisi_hba *hisi_hba;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = pdev->dev.of_node;
+	struct property *sas_addr_prop;
+
+	shost = scsi_host_alloc(&hisi_sas_sht, sizeof(*hisi_hba));
+	if (!shost)
+		goto err_out;
+	hisi_hba = shost_priv(shost);
+
+	hisi_hba->hw = hw;
+	hisi_hba->pdev = pdev;
+	hisi_hba->shost = shost;
+	SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
+
+	init_timer(&hisi_hba->timer);
+
+	sas_addr_prop = of_find_property(np, "sas-addr", NULL);
+	if (!sas_addr_prop || (sas_addr_prop->length != SAS_ADDR_SIZE))
+		goto err_out;
+	memcpy(hisi_hba->sas_addr, sas_addr_prop->value, SAS_ADDR_SIZE);
+
+	if (of_property_read_u32(np, "ctrl-reset-reg",
+				 &hisi_hba->ctrl_reset_reg))
+		goto err_out;
+
+	if (of_property_read_u32(np, "ctrl-reset-sts-reg",
+				 &hisi_hba->ctrl_reset_sts_reg))
+		goto err_out;
+
+	if (of_property_read_u32(np, "ctrl-clock-ena-reg",
+				 &hisi_hba->ctrl_clock_ena_reg))
+		goto err_out;
+
+	if (of_property_read_u32(np, "phy-count", &hisi_hba->n_phy))
+		goto err_out;
+
+	if (of_property_read_u32(np, "queue-count", &hisi_hba->queue_count))
+		goto err_out;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hisi_hba->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(hisi_hba->regs))
+		goto err_out;
+
+	hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(
+				np, "hisilicon,sas-syscon");
+	if (IS_ERR(hisi_hba->ctrl))
+		goto err_out;
+
+	if (hisi_sas_alloc(hisi_hba, shost)) {
+		hisi_sas_free(hisi_hba);
+		goto err_out;
+	}
+
+	return shost;
+err_out:
+	dev_err(dev, "shost alloc failed\n");
+	return NULL;
+}
+
+static void hisi_sas_init_add(struct hisi_hba *hisi_hba)
+{
+	int i;
+
+	for (i = 0; i < hisi_hba->n_phy; i++)
+		memcpy(&hisi_hba->phy[i].dev_sas_addr,
+		       hisi_hba->sas_addr,
+		       SAS_ADDR_SIZE);
+}
+
+int hisi_sas_probe(struct platform_device *pdev,
+			 const struct hisi_sas_hw *hw)
+{
+	struct Scsi_Host *shost;
+	struct hisi_hba *hisi_hba;
+	struct device *dev = &pdev->dev;
+	struct asd_sas_phy **arr_phy;
+	struct asd_sas_port **arr_port;
+	struct sas_ha_struct *sha;
+	int rc, phy_nr, port_nr, i;
+
+	shost = hisi_sas_shost_alloc(pdev, hw);
+	if (!shost) {
+		rc = -ENOMEM;
+		goto err_out_ha;
+	}
+
+	sha = SHOST_TO_SAS_HA(shost);
+	hisi_hba = shost_priv(shost);
+	platform_set_drvdata(pdev, sha);
+
+	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) &&
+	    dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
+		dev_err(dev, "No usable DMA addressing method\n");
+		rc = -EIO;
+		goto err_out_ha;
+	}
+
+	phy_nr = port_nr = hisi_hba->n_phy;
+
+	arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL);
+	arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL);
+	if (!arr_phy || !arr_port)
+		return -ENOMEM;
+
+	sha->sas_phy = arr_phy;
+	sha->sas_port = arr_port;
+	sha->core.shost = shost;
+	sha->lldd_ha = hisi_hba;
+
+	shost->transportt = hisi_sas_stt;
+	shost->max_id = HISI_SAS_MAX_DEVICES;
+	shost->max_lun = ~0;
+	shost->max_channel = 1;
+	shost->max_cmd_len = 16;
+	shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
+	shost->can_queue = HISI_SAS_COMMAND_ENTRIES;
+	shost->cmd_per_lun = HISI_SAS_COMMAND_ENTRIES;
+
+	sha->sas_ha_name = DRV_NAME;
+	sha->dev = &hisi_hba->pdev->dev;
+	sha->lldd_module = THIS_MODULE;
+	sha->sas_addr = &hisi_hba->sas_addr[0];
+	sha->num_phys = hisi_hba->n_phy;
+	sha->core.shost = hisi_hba->shost;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy;
+		sha->sas_port[i] = &hisi_hba->port[i].sas_port;
+	}
+
+	hisi_sas_init_add(hisi_hba);
+
+	rc = hisi_hba->hw->hw_init(hisi_hba);
+	if (rc)
+		goto err_out_ha;
+
+	rc = scsi_add_host(shost, &pdev->dev);
+	if (rc)
+		goto err_out_ha;
+
+	rc = sas_register_ha(sha);
+	if (rc)
+		goto err_out_register_ha;
+
+	scsi_scan_host(shost);
+
+	return 0;
+
+err_out_register_ha:
+	scsi_remove_host(shost);
+err_out_ha:
+	kfree(shost);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_probe);
+
+int hisi_sas_remove(struct platform_device *pdev)
+{
+	struct sas_ha_struct *sha = platform_get_drvdata(pdev);
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+
+	scsi_remove_host(sha->core.shost);
+	sas_unregister_ha(sha);
+	sas_remove_host(sha->core.shost);
+
+	hisi_sas_free(hisi_hba);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_sas_remove);
+
+static __init int hisi_sas_init(void)
+{
+	pr_info("hisi_sas: driver version %s\n", DRV_VERSION);
+
+	hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops);
+	if (!hisi_sas_stt)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static __exit void hisi_sas_exit(void)
+{
+	sas_release_transport(hisi_sas_stt);
+}
+
+module_init(hisi_sas_init);
+module_exit(hisi_sas_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
new file mode 100644
index 000000000000..d54381149c0d
--- /dev/null
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -0,0 +1,1839 @@
+/*
+ * Copyright (c) 2015 Linaro Ltd.
+ * Copyright (c) 2015 Hisilicon Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include "hisi_sas.h"
+#define DRV_NAME "hisi_sas_v1_hw"
+
+/* global registers need init*/
+#define DLVRY_QUEUE_ENABLE		0x0
+#define IOST_BASE_ADDR_LO		0x8
+#define IOST_BASE_ADDR_HI		0xc
+#define ITCT_BASE_ADDR_LO		0x10
+#define ITCT_BASE_ADDR_HI		0x14
+#define BROKEN_MSG_ADDR_LO		0x18
+#define BROKEN_MSG_ADDR_HI		0x1c
+#define PHY_CONTEXT			0x20
+#define PHY_STATE			0x24
+#define PHY_PORT_NUM_MA			0x28
+#define PORT_STATE			0x2c
+#define PHY_CONN_RATE			0x30
+#define HGC_TRANS_TASK_CNT_LIMIT	0x38
+#define AXI_AHB_CLK_CFG			0x3c
+#define HGC_SAS_TXFAIL_RETRY_CTRL	0x84
+#define HGC_GET_ITV_TIME		0x90
+#define DEVICE_MSG_WORK_MODE		0x94
+#define I_T_NEXUS_LOSS_TIME		0xa0
+#define BUS_INACTIVE_LIMIT_TIME		0xa8
+#define REJECT_TO_OPEN_LIMIT_TIME	0xac
+#define CFG_AGING_TIME			0xbc
+#define CFG_AGING_TIME_ITCT_REL_OFF	0
+#define CFG_AGING_TIME_ITCT_REL_MSK	(0x1 << CFG_AGING_TIME_ITCT_REL_OFF)
+#define HGC_DFX_CFG2			0xc0
+#define FIS_LIST_BADDR_L		0xc4
+#define CFG_1US_TIMER_TRSH		0xcc
+#define CFG_SAS_CONFIG			0xd4
+#define HGC_IOST_ECC_ADDR		0x140
+#define HGC_IOST_ECC_ADDR_BAD_OFF	16
+#define HGC_IOST_ECC_ADDR_BAD_MSK	(0x3ff << HGC_IOST_ECC_ADDR_BAD_OFF)
+#define HGC_DQ_ECC_ADDR			0x144
+#define HGC_DQ_ECC_ADDR_BAD_OFF		16
+#define HGC_DQ_ECC_ADDR_BAD_MSK		(0xfff << HGC_DQ_ECC_ADDR_BAD_OFF)
+#define HGC_INVLD_DQE_INFO		0x148
+#define HGC_INVLD_DQE_INFO_DQ_OFF	0
+#define HGC_INVLD_DQE_INFO_DQ_MSK	(0xffff << HGC_INVLD_DQE_INFO_DQ_OFF)
+#define HGC_INVLD_DQE_INFO_TYPE_OFF	16
+#define HGC_INVLD_DQE_INFO_TYPE_MSK	(0x1 << HGC_INVLD_DQE_INFO_TYPE_OFF)
+#define HGC_INVLD_DQE_INFO_FORCE_OFF	17
+#define HGC_INVLD_DQE_INFO_FORCE_MSK	(0x1 << HGC_INVLD_DQE_INFO_FORCE_OFF)
+#define HGC_INVLD_DQE_INFO_PHY_OFF	18
+#define HGC_INVLD_DQE_INFO_PHY_MSK	(0x1 << HGC_INVLD_DQE_INFO_PHY_OFF)
+#define HGC_INVLD_DQE_INFO_ABORT_OFF	19
+#define HGC_INVLD_DQE_INFO_ABORT_MSK	(0x1 << HGC_INVLD_DQE_INFO_ABORT_OFF)
+#define HGC_INVLD_DQE_INFO_IPTT_OF_OFF	20
+#define HGC_INVLD_DQE_INFO_IPTT_OF_MSK	(0x1 << HGC_INVLD_DQE_INFO_IPTT_OF_OFF)
+#define HGC_INVLD_DQE_INFO_SSP_ERR_OFF	21
+#define HGC_INVLD_DQE_INFO_SSP_ERR_MSK	(0x1 << HGC_INVLD_DQE_INFO_SSP_ERR_OFF)
+#define HGC_INVLD_DQE_INFO_OFL_OFF	22
+#define HGC_INVLD_DQE_INFO_OFL_MSK	(0x1 << HGC_INVLD_DQE_INFO_OFL_OFF)
+#define HGC_ITCT_ECC_ADDR		0x150
+#define HGC_ITCT_ECC_ADDR_BAD_OFF	16
+#define HGC_ITCT_ECC_ADDR_BAD_MSK	(0x3ff << HGC_ITCT_ECC_ADDR_BAD_OFF)
+#define HGC_AXI_FIFO_ERR_INFO		0x154
+#define INT_COAL_EN			0x1bc
+#define OQ_INT_COAL_TIME		0x1c0
+#define OQ_INT_COAL_CNT			0x1c4
+#define ENT_INT_COAL_TIME		0x1c8
+#define ENT_INT_COAL_CNT		0x1cc
+#define OQ_INT_SRC			0x1d0
+#define OQ_INT_SRC_MSK			0x1d4
+#define ENT_INT_SRC1			0x1d8
+#define ENT_INT_SRC2			0x1dc
+#define ENT_INT_SRC2_DQ_CFG_ERR_OFF	25
+#define ENT_INT_SRC2_DQ_CFG_ERR_MSK	(0x1 << ENT_INT_SRC2_DQ_CFG_ERR_OFF)
+#define ENT_INT_SRC2_CQ_CFG_ERR_OFF	27
+#define ENT_INT_SRC2_CQ_CFG_ERR_MSK	(0x1 << ENT_INT_SRC2_CQ_CFG_ERR_OFF)
+#define ENT_INT_SRC2_AXI_WRONG_INT_OFF	28
+#define ENT_INT_SRC2_AXI_WRONG_INT_MSK	(0x1 << ENT_INT_SRC2_AXI_WRONG_INT_OFF)
+#define ENT_INT_SRC2_AXI_OVERLF_INT_OFF	29
+#define ENT_INT_SRC2_AXI_OVERLF_INT_MSK	(0x1 << ENT_INT_SRC2_AXI_OVERLF_INT_OFF)
+#define ENT_INT_SRC_MSK1		0x1e0
+#define ENT_INT_SRC_MSK2		0x1e4
+#define SAS_ECC_INTR			0x1e8
+#define SAS_ECC_INTR_DQ_ECC1B_OFF	0
+#define SAS_ECC_INTR_DQ_ECC1B_MSK	(0x1 << SAS_ECC_INTR_DQ_ECC1B_OFF)
+#define SAS_ECC_INTR_DQ_ECCBAD_OFF	1
+#define SAS_ECC_INTR_DQ_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_DQ_ECCBAD_OFF)
+#define SAS_ECC_INTR_IOST_ECC1B_OFF	2
+#define SAS_ECC_INTR_IOST_ECC1B_MSK	(0x1 << SAS_ECC_INTR_IOST_ECC1B_OFF)
+#define SAS_ECC_INTR_IOST_ECCBAD_OFF	3
+#define SAS_ECC_INTR_IOST_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_IOST_ECCBAD_OFF)
+#define SAS_ECC_INTR_ITCT_ECC1B_OFF	4
+#define SAS_ECC_INTR_ITCT_ECC1B_MSK	(0x1 << SAS_ECC_INTR_ITCT_ECC1B_OFF)
+#define SAS_ECC_INTR_ITCT_ECCBAD_OFF	5
+#define SAS_ECC_INTR_ITCT_ECCBAD_MSK	(0x1 << SAS_ECC_INTR_ITCT_ECCBAD_OFF)
+#define SAS_ECC_INTR_MSK		0x1ec
+#define HGC_ERR_STAT_EN			0x238
+#define DLVRY_Q_0_BASE_ADDR_LO		0x260
+#define DLVRY_Q_0_BASE_ADDR_HI		0x264
+#define DLVRY_Q_0_DEPTH			0x268
+#define DLVRY_Q_0_WR_PTR		0x26c
+#define DLVRY_Q_0_RD_PTR		0x270
+#define COMPL_Q_0_BASE_ADDR_LO		0x4e0
+#define COMPL_Q_0_BASE_ADDR_HI		0x4e4
+#define COMPL_Q_0_DEPTH			0x4e8
+#define COMPL_Q_0_WR_PTR		0x4ec
+#define COMPL_Q_0_RD_PTR		0x4f0
+#define HGC_ECC_ERR			0x7d0
+
+/* phy registers need init */
+#define PORT_BASE			(0x800)
+
+#define PHY_CFG				(PORT_BASE + 0x0)
+#define PHY_CFG_ENA_OFF			0
+#define PHY_CFG_ENA_MSK			(0x1 << PHY_CFG_ENA_OFF)
+#define PHY_CFG_DC_OPT_OFF		2
+#define PHY_CFG_DC_OPT_MSK		(0x1 << PHY_CFG_DC_OPT_OFF)
+#define PROG_PHY_LINK_RATE		(PORT_BASE + 0xc)
+#define PROG_PHY_LINK_RATE_MAX_OFF	0
+#define PROG_PHY_LINK_RATE_MAX_MSK	(0xf << PROG_PHY_LINK_RATE_MAX_OFF)
+#define PROG_PHY_LINK_RATE_MIN_OFF	4
+#define PROG_PHY_LINK_RATE_MIN_MSK	(0xf << PROG_PHY_LINK_RATE_MIN_OFF)
+#define PROG_PHY_LINK_RATE_OOB_OFF	8
+#define PROG_PHY_LINK_RATE_OOB_MSK	(0xf << PROG_PHY_LINK_RATE_OOB_OFF)
+#define PHY_CTRL			(PORT_BASE + 0x14)
+#define PHY_CTRL_RESET_OFF		0
+#define PHY_CTRL_RESET_MSK		(0x1 << PHY_CTRL_RESET_OFF)
+#define PHY_RATE_NEGO			(PORT_BASE + 0x30)
+#define PHY_PCN				(PORT_BASE + 0x44)
+#define SL_TOUT_CFG			(PORT_BASE + 0x8c)
+#define SL_CONTROL			(PORT_BASE + 0x94)
+#define SL_CONTROL_NOTIFY_EN_OFF	0
+#define SL_CONTROL_NOTIFY_EN_MSK	(0x1 << SL_CONTROL_NOTIFY_EN_OFF)
+#define TX_ID_DWORD0			(PORT_BASE + 0x9c)
+#define TX_ID_DWORD1			(PORT_BASE + 0xa0)
+#define TX_ID_DWORD2			(PORT_BASE + 0xa4)
+#define TX_ID_DWORD3			(PORT_BASE + 0xa8)
+#define TX_ID_DWORD4			(PORT_BASE + 0xaC)
+#define TX_ID_DWORD5			(PORT_BASE + 0xb0)
+#define TX_ID_DWORD6			(PORT_BASE + 0xb4)
+#define RX_IDAF_DWORD0			(PORT_BASE + 0xc4)
+#define RX_IDAF_DWORD1			(PORT_BASE + 0xc8)
+#define RX_IDAF_DWORD2			(PORT_BASE + 0xcc)
+#define RX_IDAF_DWORD3			(PORT_BASE + 0xd0)
+#define RX_IDAF_DWORD4			(PORT_BASE + 0xd4)
+#define RX_IDAF_DWORD5			(PORT_BASE + 0xd8)
+#define RX_IDAF_DWORD6			(PORT_BASE + 0xdc)
+#define RXOP_CHECK_CFG_H		(PORT_BASE + 0xfc)
+#define DONE_RECEIVED_TIME		(PORT_BASE + 0x12c)
+#define CON_CFG_DRIVER			(PORT_BASE + 0x130)
+#define PHY_CONFIG2			(PORT_BASE + 0x1a8)
+#define PHY_CONFIG2_FORCE_TXDEEMPH_OFF	3
+#define PHY_CONFIG2_FORCE_TXDEEMPH_MSK	(0x1 << PHY_CONFIG2_FORCE_TXDEEMPH_OFF)
+#define PHY_CONFIG2_TX_TRAIN_COMP_OFF	24
+#define PHY_CONFIG2_TX_TRAIN_COMP_MSK	(0x1 << PHY_CONFIG2_TX_TRAIN_COMP_OFF)
+#define CHL_INT0			(PORT_BASE + 0x1b0)
+#define CHL_INT0_PHYCTRL_NOTRDY_OFF	0
+#define CHL_INT0_PHYCTRL_NOTRDY_MSK	(0x1 << CHL_INT0_PHYCTRL_NOTRDY_OFF)
+#define CHL_INT0_SN_FAIL_NGR_OFF	2
+#define CHL_INT0_SN_FAIL_NGR_MSK	(0x1 << CHL_INT0_SN_FAIL_NGR_OFF)
+#define CHL_INT0_DWS_LOST_OFF		4
+#define CHL_INT0_DWS_LOST_MSK		(0x1 << CHL_INT0_DWS_LOST_OFF)
+#define CHL_INT0_SL_IDAF_FAIL_OFF	10
+#define CHL_INT0_SL_IDAF_FAIL_MSK	(0x1 << CHL_INT0_SL_IDAF_FAIL_OFF)
+#define CHL_INT0_ID_TIMEOUT_OFF		11
+#define CHL_INT0_ID_TIMEOUT_MSK		(0x1 << CHL_INT0_ID_TIMEOUT_OFF)
+#define CHL_INT0_SL_OPAF_FAIL_OFF	12
+#define CHL_INT0_SL_OPAF_FAIL_MSK	(0x1 << CHL_INT0_SL_OPAF_FAIL_OFF)
+#define CHL_INT0_SL_PS_FAIL_OFF		21
+#define CHL_INT0_SL_PS_FAIL_MSK		(0x1 << CHL_INT0_SL_PS_FAIL_OFF)
+#define CHL_INT1			(PORT_BASE + 0x1b4)
+#define CHL_INT2			(PORT_BASE + 0x1b8)
+#define CHL_INT2_SL_RX_BC_ACK_OFF	2
+#define CHL_INT2_SL_RX_BC_ACK_MSK	(0x1 << CHL_INT2_SL_RX_BC_ACK_OFF)
+#define CHL_INT2_SL_PHY_ENA_OFF		6
+#define CHL_INT2_SL_PHY_ENA_MSK		(0x1 << CHL_INT2_SL_PHY_ENA_OFF)
+#define CHL_INT0_MSK			(PORT_BASE + 0x1bc)
+#define CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF	0
+#define CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK	(0x1 << CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF)
+#define CHL_INT1_MSK			(PORT_BASE + 0x1c0)
+#define CHL_INT2_MSK			(PORT_BASE + 0x1c4)
+#define CHL_INT_COAL_EN			(PORT_BASE + 0x1d0)
+#define DMA_TX_STATUS			(PORT_BASE + 0x2d0)
+#define DMA_TX_STATUS_BUSY_OFF		0
+#define DMA_TX_STATUS_BUSY_MSK		(0x1 << DMA_TX_STATUS_BUSY_OFF)
+#define DMA_RX_STATUS			(PORT_BASE + 0x2e8)
+#define DMA_RX_STATUS_BUSY_OFF		0
+#define DMA_RX_STATUS_BUSY_MSK		(0x1 << DMA_RX_STATUS_BUSY_OFF)
+
+#define AXI_CFG				0x5100
+#define RESET_VALUE			0x7ffff
+
+/* HW dma structures */
+/* Delivery queue header */
+/* dw0 */
+#define CMD_HDR_RESP_REPORT_OFF		5
+#define CMD_HDR_RESP_REPORT_MSK		0x20
+#define CMD_HDR_TLR_CTRL_OFF		6
+#define CMD_HDR_TLR_CTRL_MSK		0xc0
+#define CMD_HDR_PORT_OFF		17
+#define CMD_HDR_PORT_MSK		0xe0000
+#define CMD_HDR_PRIORITY_OFF		27
+#define CMD_HDR_PRIORITY_MSK		0x8000000
+#define CMD_HDR_MODE_OFF		28
+#define CMD_HDR_MODE_MSK		0x10000000
+#define CMD_HDR_CMD_OFF			29
+#define CMD_HDR_CMD_MSK			0xe0000000
+/* dw1 */
+#define CMD_HDR_VERIFY_DTL_OFF		10
+#define CMD_HDR_VERIFY_DTL_MSK		0x400
+#define CMD_HDR_SSP_FRAME_TYPE_OFF	13
+#define CMD_HDR_SSP_FRAME_TYPE_MSK	0xe000
+#define CMD_HDR_DEVICE_ID_OFF		16
+#define CMD_HDR_DEVICE_ID_MSK		0xffff0000
+/* dw2 */
+#define CMD_HDR_CFL_OFF			0
+#define CMD_HDR_CFL_MSK			0x1ff
+#define CMD_HDR_MRFL_OFF		15
+#define CMD_HDR_MRFL_MSK		0xff8000
+#define CMD_HDR_FIRST_BURST_OFF		25
+#define CMD_HDR_FIRST_BURST_MSK		0x2000000
+/* dw3 */
+#define CMD_HDR_IPTT_OFF		0
+#define CMD_HDR_IPTT_MSK		0xffff
+/* dw6 */
+#define CMD_HDR_DATA_SGL_LEN_OFF	16
+#define CMD_HDR_DATA_SGL_LEN_MSK	0xffff0000
+
+/* Completion header */
+#define CMPLT_HDR_IPTT_OFF		0
+#define CMPLT_HDR_IPTT_MSK		(0xffff << CMPLT_HDR_IPTT_OFF)
+#define CMPLT_HDR_CMD_CMPLT_OFF		17
+#define CMPLT_HDR_CMD_CMPLT_MSK		(0x1 << CMPLT_HDR_CMD_CMPLT_OFF)
+#define CMPLT_HDR_ERR_RCRD_XFRD_OFF	18
+#define CMPLT_HDR_ERR_RCRD_XFRD_MSK	(0x1 << CMPLT_HDR_ERR_RCRD_XFRD_OFF)
+#define CMPLT_HDR_RSPNS_XFRD_OFF	19
+#define CMPLT_HDR_RSPNS_XFRD_MSK	(0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
+#define CMPLT_HDR_IO_CFG_ERR_OFF	27
+#define CMPLT_HDR_IO_CFG_ERR_MSK	(0x1 << CMPLT_HDR_IO_CFG_ERR_OFF)
+
+/* ITCT header */
+/* qw0 */
+#define ITCT_HDR_DEV_TYPE_OFF		0
+#define ITCT_HDR_DEV_TYPE_MSK		(0x3 << ITCT_HDR_DEV_TYPE_OFF)
+#define ITCT_HDR_VALID_OFF		2
+#define ITCT_HDR_VALID_MSK		(0x1 << ITCT_HDR_VALID_OFF)
+#define ITCT_HDR_BREAK_REPLY_ENA_OFF	3
+#define ITCT_HDR_BREAK_REPLY_ENA_MSK	(0x1 << ITCT_HDR_BREAK_REPLY_ENA_OFF)
+#define ITCT_HDR_AWT_CONTROL_OFF	4
+#define ITCT_HDR_AWT_CONTROL_MSK	(0x1 << ITCT_HDR_AWT_CONTROL_OFF)
+#define ITCT_HDR_MAX_CONN_RATE_OFF	5
+#define ITCT_HDR_MAX_CONN_RATE_MSK	(0xf << ITCT_HDR_MAX_CONN_RATE_OFF)
+#define ITCT_HDR_VALID_LINK_NUM_OFF	9
+#define ITCT_HDR_VALID_LINK_NUM_MSK	(0xf << ITCT_HDR_VALID_LINK_NUM_OFF)
+#define ITCT_HDR_PORT_ID_OFF		13
+#define ITCT_HDR_PORT_ID_MSK		(0x7 << ITCT_HDR_PORT_ID_OFF)
+#define ITCT_HDR_SMP_TIMEOUT_OFF	16
+#define ITCT_HDR_SMP_TIMEOUT_MSK	(0xffff << ITCT_HDR_SMP_TIMEOUT_OFF)
+#define ITCT_HDR_MAX_BURST_BYTES_OFF	16
+#define ITCT_HDR_MAX_BURST_BYTES_MSK	(0xffffffff << \
+					ITCT_MAX_BURST_BYTES_OFF)
+/* qw1 */
+#define ITCT_HDR_MAX_SAS_ADDR_OFF	0
+#define ITCT_HDR_MAX_SAS_ADDR_MSK	(0xffffffffffffffff << \
+					ITCT_HDR_MAX_SAS_ADDR_OFF)
+/* qw2 */
+#define ITCT_HDR_IT_NEXUS_LOSS_TL_OFF	0
+#define ITCT_HDR_IT_NEXUS_LOSS_TL_MSK	(0xffff << \
+					ITCT_HDR_IT_NEXUS_LOSS_TL_OFF)
+#define ITCT_HDR_BUS_INACTIVE_TL_OFF	16
+#define ITCT_HDR_BUS_INACTIVE_TL_MSK	(0xffff << \
+					ITCT_HDR_BUS_INACTIVE_TL_OFF)
+#define ITCT_HDR_MAX_CONN_TL_OFF	32
+#define ITCT_HDR_MAX_CONN_TL_MSK	(0xffff << \
+					ITCT_HDR_MAX_CONN_TL_OFF)
+#define ITCT_HDR_REJ_OPEN_TL_OFF	48
+#define ITCT_HDR_REJ_OPEN_TL_MSK	(0xffff << \
+					ITCT_REJ_OPEN_TL_OFF)
+
+/* Err record header */
+#define ERR_HDR_DMA_TX_ERR_TYPE_OFF	0
+#define ERR_HDR_DMA_TX_ERR_TYPE_MSK	(0xffff << ERR_HDR_DMA_TX_ERR_TYPE_OFF)
+#define ERR_HDR_DMA_RX_ERR_TYPE_OFF	16
+#define ERR_HDR_DMA_RX_ERR_TYPE_MSK	(0xffff << ERR_HDR_DMA_RX_ERR_TYPE_OFF)
+
+struct hisi_sas_complete_v1_hdr {
+	__le32 data;
+};
+
+enum {
+	HISI_SAS_PHY_BCAST_ACK = 0,
+	HISI_SAS_PHY_SL_PHY_ENABLED,
+	HISI_SAS_PHY_INT_ABNORMAL,
+	HISI_SAS_PHY_INT_NR
+};
+
+enum {
+	DMA_TX_ERR_BASE = 0x0,
+	DMA_RX_ERR_BASE = 0x100,
+	TRANS_TX_FAIL_BASE = 0x200,
+	TRANS_RX_FAIL_BASE = 0x300,
+
+	/* dma tx */
+	DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x0 */
+	DMA_TX_DIF_APP_ERR, /* 0x1 */
+	DMA_TX_DIF_RPP_ERR, /* 0x2 */
+	DMA_TX_AXI_BUS_ERR, /* 0x3 */
+	DMA_TX_DATA_SGL_OVERFLOW_ERR, /* 0x4 */
+	DMA_TX_DIF_SGL_OVERFLOW_ERR, /* 0x5 */
+	DMA_TX_UNEXP_XFER_RDY_ERR, /* 0x6 */
+	DMA_TX_XFER_RDY_OFFSET_ERR, /* 0x7 */
+	DMA_TX_DATA_UNDERFLOW_ERR, /* 0x8 */
+	DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR, /* 0x9 */
+
+	/* dma rx */
+	DMA_RX_BUFFER_ECC_ERR = DMA_RX_ERR_BASE, /* 0x100 */
+	DMA_RX_DIF_CRC_ERR, /* 0x101 */
+	DMA_RX_DIF_APP_ERR, /* 0x102 */
+	DMA_RX_DIF_RPP_ERR, /* 0x103 */
+	DMA_RX_RESP_BUFFER_OVERFLOW_ERR, /* 0x104 */
+	DMA_RX_AXI_BUS_ERR, /* 0x105 */
+	DMA_RX_DATA_SGL_OVERFLOW_ERR, /* 0x106 */
+	DMA_RX_DIF_SGL_OVERFLOW_ERR, /* 0x107 */
+	DMA_RX_DATA_OFFSET_ERR, /* 0x108 */
+	DMA_RX_UNEXP_RX_DATA_ERR, /* 0x109 */
+	DMA_RX_DATA_OVERFLOW_ERR, /* 0x10a */
+	DMA_RX_DATA_UNDERFLOW_ERR, /* 0x10b */
+	DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x10c */
+
+	/* trans tx */
+	TRANS_TX_RSVD0_ERR = TRANS_TX_FAIL_BASE, /* 0x200 */
+	TRANS_TX_PHY_NOT_ENABLE_ERR, /* 0x201 */
+	TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR, /* 0x202 */
+	TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR, /* 0x203 */
+	TRANS_TX_OPEN_REJCT_BY_OTHER_ERR, /* 0x204 */
+	TRANS_TX_RSVD1_ERR, /* 0x205 */
+	TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR, /* 0x206 */
+	TRANS_TX_OPEN_REJCT_STP_BUSY_ERR, /* 0x207 */
+	TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR, /* 0x208 */
+	TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR, /* 0x209 */
+	TRANS_TX_OPEN_REJCT_BAD_DEST_ERR, /* 0x20a */
+	TRANS_TX_OPEN_BREAK_RECEIVE_ERR, /* 0x20b */
+	TRANS_TX_LOW_PHY_POWER_ERR, /* 0x20c */
+	TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR, /* 0x20d */
+	TRANS_TX_OPEN_TIMEOUT_ERR, /* 0x20e */
+	TRANS_TX_OPEN_REJCT_NO_DEST_ERR, /* 0x20f */
+	TRANS_TX_OPEN_RETRY_ERR, /* 0x210 */
+	TRANS_TX_RSVD2_ERR, /* 0x211 */
+	TRANS_TX_BREAK_TIMEOUT_ERR, /* 0x212 */
+	TRANS_TX_BREAK_REQUEST_ERR, /* 0x213 */
+	TRANS_TX_BREAK_RECEIVE_ERR, /* 0x214 */
+	TRANS_TX_CLOSE_TIMEOUT_ERR, /* 0x215 */
+	TRANS_TX_CLOSE_NORMAL_ERR, /* 0x216 */
+	TRANS_TX_CLOSE_PHYRESET_ERR, /* 0x217 */
+	TRANS_TX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x218 */
+	TRANS_TX_WITH_CLOSE_COMINIT_ERR, /* 0x219 */
+	TRANS_TX_NAK_RECEIVE_ERR, /* 0x21a */
+	TRANS_TX_ACK_NAK_TIMEOUT_ERR, /* 0x21b */
+	TRANS_TX_CREDIT_TIMEOUT_ERR, /* 0x21c */
+	TRANS_TX_IPTT_CONFLICT_ERR, /* 0x21d */
+	TRANS_TX_TXFRM_TYPE_ERR, /* 0x21e */
+	TRANS_TX_TXSMP_LENGTH_ERR, /* 0x21f */
+
+	/* trans rx */
+	TRANS_RX_FRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x300 */
+	TRANS_RX_FRAME_DONE_ERR, /* 0x301 */
+	TRANS_RX_FRAME_ERRPRM_ERR, /* 0x302 */
+	TRANS_RX_FRAME_NO_CREDIT_ERR, /* 0x303 */
+	TRANS_RX_RSVD0_ERR, /* 0x304 */
+	TRANS_RX_FRAME_OVERRUN_ERR, /* 0x305 */
+	TRANS_RX_FRAME_NO_EOF_ERR, /* 0x306 */
+	TRANS_RX_LINK_BUF_OVERRUN_ERR, /* 0x307 */
+	TRANS_RX_BREAK_TIMEOUT_ERR, /* 0x308 */
+	TRANS_RX_BREAK_REQUEST_ERR, /* 0x309 */
+	TRANS_RX_BREAK_RECEIVE_ERR, /* 0x30a */
+	TRANS_RX_CLOSE_TIMEOUT_ERR, /* 0x30b */
+	TRANS_RX_CLOSE_NORMAL_ERR, /* 0x30c */
+	TRANS_RX_CLOSE_PHYRESET_ERR, /* 0x30d */
+	TRANS_RX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x30e */
+	TRANS_RX_WITH_CLOSE_COMINIT_ERR, /* 0x30f */
+	TRANS_RX_DATA_LENGTH0_ERR, /* 0x310 */
+	TRANS_RX_BAD_HASH_ERR, /* 0x311 */
+	TRANS_RX_XRDY_ZERO_ERR, /* 0x312 */
+	TRANS_RX_SSP_FRAME_LEN_ERR, /* 0x313 */
+	TRANS_RX_TRANS_RX_RSVD1_ERR, /* 0x314 */
+	TRANS_RX_NO_BALANCE_ERR, /* 0x315 */
+	TRANS_RX_TRANS_RX_RSVD2_ERR, /* 0x316 */
+	TRANS_RX_TRANS_RX_RSVD3_ERR, /* 0x317 */
+	TRANS_RX_BAD_FRAME_TYPE_ERR, /* 0x318 */
+	TRANS_RX_SMP_FRAME_LEN_ERR, /* 0x319 */
+	TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x31a */
+};
+
+#define HISI_SAS_PHY_MAX_INT_NR (HISI_SAS_PHY_INT_NR * HISI_SAS_MAX_PHYS)
+#define HISI_SAS_CQ_MAX_INT_NR (HISI_SAS_MAX_QUEUES)
+#define HISI_SAS_FATAL_INT_NR (2)
+
+#define HISI_SAS_MAX_INT_NR \
+	(HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\
+	HISI_SAS_FATAL_INT_NR)
+
+static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
+{
+	void __iomem *regs = hisi_hba->regs + off;
+
+	return readl(regs);
+}
+
+static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
+{
+	void __iomem *regs = hisi_hba->regs + off;
+
+	return readl_relaxed(regs);
+}
+
+static void hisi_sas_write32(struct hisi_hba *hisi_hba,
+				    u32 off, u32 val)
+{
+	void __iomem *regs = hisi_hba->regs + off;
+
+	writel(val, regs);
+}
+
+static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba,
+					int phy_no, u32 off, u32 val)
+{
+	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+	writel(val, regs);
+}
+
+static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
+				      int phy_no, u32 off)
+{
+	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+	return readl(regs);
+}
+
+static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+	cfg &= ~PHY_CFG_DC_OPT_MSK;
+	cfg |= 1 << PHY_CFG_DC_OPT_OFF;
+	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2);
+
+	cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK;
+	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg);
+}
+
+static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	struct sas_identify_frame identify_frame;
+	u32 *identify_buffer;
+
+	memset(&identify_frame, 0, sizeof(identify_frame));
+	identify_frame.dev_type = SAS_END_DEVICE;
+	identify_frame.frame_type = 0;
+	identify_frame._un1 = 1;
+	identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
+	identify_frame.target_bits = SAS_PROTOCOL_NONE;
+	memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+	memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr,	SAS_ADDR_SIZE);
+	identify_frame.phy_id = phy_no;
+	identify_buffer = (u32 *)(&identify_frame);
+
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
+			__swab32(identify_buffer[0]));
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
+			identify_buffer[2]);
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
+			identify_buffer[1]);
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
+			identify_buffer[4]);
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
+			identify_buffer[3]);
+	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
+			__swab32(identify_buffer[5]));
+}
+
+static void init_id_frame_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int i;
+
+	for (i = 0; i < hisi_hba->n_phy; i++)
+		config_id_frame_v1_hw(hisi_hba, i);
+}
+
+static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
+			     struct hisi_sas_device *sas_dev)
+{
+	struct domain_device *device = sas_dev->sas_device;
+	struct device *dev = &hisi_hba->pdev->dev;
+	u64 qw0, device_id = sas_dev->device_id;
+	struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
+
+	memset(itct, 0, sizeof(*itct));
+
+	/* qw0 */
+	qw0 = 0;
+	switch (sas_dev->dev_type) {
+	case SAS_END_DEVICE:
+	case SAS_EDGE_EXPANDER_DEVICE:
+	case SAS_FANOUT_EXPANDER_DEVICE:
+		qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
+		break;
+	default:
+		dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
+			 sas_dev->dev_type);
+	}
+
+	qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
+		(1 << ITCT_HDR_AWT_CONTROL_OFF) |
+		(device->max_linkrate << ITCT_HDR_MAX_CONN_RATE_OFF) |
+		(1 << ITCT_HDR_VALID_LINK_NUM_OFF) |
+		(device->port->id << ITCT_HDR_PORT_ID_OFF));
+	itct->qw0 = cpu_to_le64(qw0);
+
+	/* qw1 */
+	memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
+	itct->sas_addr = __swab64(itct->sas_addr);
+
+	/* qw2 */
+	itct->qw2 = cpu_to_le64((500 < ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) |
+				(0xff00 < ITCT_HDR_BUS_INACTIVE_TL_OFF) |
+				(0xff00 < ITCT_HDR_MAX_CONN_TL_OFF) |
+				(0xff00 < ITCT_HDR_REJ_OPEN_TL_OFF));
+}
+
+static void free_device_v1_hw(struct hisi_hba *hisi_hba,
+			      struct hisi_sas_device *sas_dev)
+{
+	u64 dev_id = sas_dev->device_id;
+	struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
+	u32 qw0, reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
+
+	reg_val |= CFG_AGING_TIME_ITCT_REL_MSK;
+	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
+
+	/* free itct */
+	udelay(1);
+	reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
+	reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK;
+	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
+
+	qw0 = cpu_to_le64(itct->qw0);
+	qw0 &= ~ITCT_HDR_VALID_MSK;
+	itct->qw0 = cpu_to_le64(qw0);
+}
+
+static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int i;
+	unsigned long end_time;
+	u32 val;
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL);
+
+		phy_ctrl |= PHY_CTRL_RESET_MSK;
+		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl);
+	}
+	msleep(1); /* It is safe to wait for 50us */
+
+	/* Ensure DMA tx & rx idle */
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		u32 dma_tx_status, dma_rx_status;
+
+		end_time = jiffies + msecs_to_jiffies(1000);
+
+		while (1) {
+			dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
+							    DMA_TX_STATUS);
+			dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
+							    DMA_RX_STATUS);
+
+			if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
+				!(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
+				break;
+
+			msleep(20);
+			if (time_after(jiffies, end_time))
+				return -EIO;
+		}
+	}
+
+	/* Ensure axi bus idle */
+	end_time = jiffies + msecs_to_jiffies(1000);
+	while (1) {
+		u32 axi_status =
+			hisi_sas_read32(hisi_hba, AXI_CFG);
+
+		if (axi_status == 0)
+			break;
+
+		msleep(20);
+		if (time_after(jiffies, end_time))
+			return -EIO;
+	}
+
+	/* Apply reset and disable clock */
+	/* clk disable reg is offset by +4 bytes from clk enable reg */
+	regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
+		     RESET_VALUE);
+	regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
+		     RESET_VALUE);
+	msleep(1);
+	regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
+	if (RESET_VALUE != (val & RESET_VALUE)) {
+		dev_err(dev, "Reset failed\n");
+		return -EIO;
+	}
+
+	/* De-reset and enable clock */
+	/* deassert rst reg is offset by +4 bytes from assert reg */
+	regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
+		     RESET_VALUE);
+	regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
+		     RESET_VALUE);
+	msleep(1);
+	regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
+	if (val & RESET_VALUE) {
+		dev_err(dev, "De-reset failed\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static void init_reg_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int i;
+
+	/* Global registers init*/
+	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
+			 (u32)((1ULL << hisi_hba->queue_count) - 1));
+	hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11);
+	hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1);
+	hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff);
+	hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401);
+	hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64);
+	hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
+	hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64);
+	hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710);
+	hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1);
+	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12);
+	hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40);
+	hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2);
+	hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
+	hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0);
+	hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1);
+	hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
+	hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
+	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff);
+	hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0);
+	hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
+	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0);
+	hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
+	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0);
+	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0);
+	hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2);
+	hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000);
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a);
+		hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080);
+		hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00);
+		hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000);
+		hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
+		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0);
+		hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
+		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0);
+		hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3);
+		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8);
+	}
+
+	for (i = 0; i < hisi_hba->queue_count; i++) {
+		/* Delivery queue */
+		hisi_sas_write32(hisi_hba,
+				 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
+				 upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+		hisi_sas_write32(hisi_hba,
+				 DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
+				 lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+		hisi_sas_write32(hisi_hba,
+				 DLVRY_Q_0_DEPTH + (i * 0x14),
+				 HISI_SAS_QUEUE_SLOTS);
+
+		/* Completion queue */
+		hisi_sas_write32(hisi_hba,
+				 COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
+				 upper_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+		hisi_sas_write32(hisi_hba,
+				 COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
+				 lower_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+		hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
+				 HISI_SAS_QUEUE_SLOTS);
+	}
+
+	/* itct */
+	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
+			 lower_32_bits(hisi_hba->itct_dma));
+
+	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
+			 upper_32_bits(hisi_hba->itct_dma));
+
+	/* iost */
+	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
+			 lower_32_bits(hisi_hba->iost_dma));
+
+	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
+			 upper_32_bits(hisi_hba->iost_dma));
+
+	/* breakpoint */
+	hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO,
+			 lower_32_bits(hisi_hba->breakpoint_dma));
+
+	hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI,
+			 upper_32_bits(hisi_hba->breakpoint_dma));
+}
+
+static int hw_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+	struct device *dev = &hisi_hba->pdev->dev;
+	int rc;
+
+	rc = reset_hw_v1_hw(hisi_hba);
+	if (rc) {
+		dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc);
+		return rc;
+	}
+
+	msleep(100);
+	init_reg_v1_hw(hisi_hba);
+
+	init_id_frame_v1_hw(hisi_hba);
+
+	return 0;
+}
+
+static void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+	cfg |= PHY_CFG_ENA_MSK;
+	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void disable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+	cfg &= ~PHY_CFG_ENA_MSK;
+	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	config_id_frame_v1_hw(hisi_hba, phy_no);
+	config_phy_opt_mode_v1_hw(hisi_hba, phy_no);
+	config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no);
+	enable_phy_v1_hw(hisi_hba, phy_no);
+}
+
+static void stop_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	disable_phy_v1_hw(hisi_hba, phy_no);
+}
+
+static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	stop_phy_v1_hw(hisi_hba, phy_no);
+	msleep(100);
+	start_phy_v1_hw(hisi_hba, phy_no);
+}
+
+static void start_phys_v1_hw(unsigned long data)
+{
+	struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
+	int i;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a);
+		start_phy_v1_hw(hisi_hba, i);
+	}
+}
+
+static void phys_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int i;
+	struct timer_list *timer = &hisi_hba->timer;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
+		hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
+	}
+
+	setup_timer(timer, start_phys_v1_hw, (unsigned long)hisi_hba);
+	mod_timer(timer, jiffies + HZ);
+}
+
+static void sl_notify_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+	u32 sl_control;
+
+	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+	sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
+	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+	msleep(1);
+	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
+	sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
+	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
+}
+
+static int get_wideport_bitmap_v1_hw(struct hisi_hba *hisi_hba, int port_id)
+{
+	int i, bitmap = 0;
+	u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
+
+	for (i = 0; i < hisi_hba->n_phy; i++)
+		if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
+			bitmap |= 1 << i;
+
+	return bitmap;
+}
+
+/**
+ * This function allocates across all queues to load balance.
+ * Slots are allocated from queues in a round-robin fashion.
+ *
+ * The callpath to this function and upto writing the write
+ * queue pointer should be safe from interruption.
+ */
+static int get_free_slot_v1_hw(struct hisi_hba *hisi_hba, int *q, int *s)
+{
+	struct device *dev = &hisi_hba->pdev->dev;
+	u32 r, w;
+	int queue = hisi_hba->queue;
+
+	while (1) {
+		w = hisi_sas_read32_relaxed(hisi_hba,
+				    DLVRY_Q_0_WR_PTR + (queue * 0x14));
+		r = hisi_sas_read32_relaxed(hisi_hba,
+				    DLVRY_Q_0_RD_PTR + (queue * 0x14));
+		if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
+			queue = (queue + 1) % hisi_hba->queue_count;
+			if (queue == hisi_hba->queue) {
+				dev_warn(dev, "could not find free slot\n");
+				return -EAGAIN;
+			}
+			continue;
+		}
+		break;
+	}
+	hisi_hba->queue = (queue + 1) % hisi_hba->queue_count;
+	*q = queue;
+	*s = w;
+	return 0;
+}
+
+static void start_delivery_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int dlvry_queue = hisi_hba->slot_prep->dlvry_queue;
+	int dlvry_queue_slot = hisi_hba->slot_prep->dlvry_queue_slot;
+
+	hisi_sas_write32(hisi_hba,
+			 DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
+			 ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS);
+}
+
+static int prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba,
+			      struct hisi_sas_slot *slot,
+			      struct hisi_sas_cmd_hdr *hdr,
+			      struct scatterlist *scatter,
+			      int n_elem)
+{
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct scatterlist *sg;
+	int i;
+
+	if (n_elem > HISI_SAS_SGE_PAGE_CNT) {
+		dev_err(dev, "prd err: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT",
+			n_elem);
+		return -EINVAL;
+	}
+
+	slot->sge_page = dma_pool_alloc(hisi_hba->sge_page_pool, GFP_ATOMIC,
+					&slot->sge_page_dma);
+	if (!slot->sge_page)
+		return -ENOMEM;
+
+	for_each_sg(scatter, sg, n_elem, i) {
+		struct hisi_sas_sge *entry = &slot->sge_page->sge[i];
+
+		entry->addr = cpu_to_le64(sg_dma_address(sg));
+		entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
+		entry->data_len = cpu_to_le32(sg_dma_len(sg));
+		entry->data_off = 0;
+	}
+
+	hdr->prd_table_addr = cpu_to_le64(slot->sge_page_dma);
+
+	hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
+
+	return 0;
+}
+
+static int prep_smp_v1_hw(struct hisi_hba *hisi_hba,
+			  struct hisi_sas_slot *slot)
+{
+	struct sas_task *task = slot->task;
+	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+	struct domain_device *device = task->dev;
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct hisi_sas_port *port = slot->port;
+	struct scatterlist *sg_req, *sg_resp;
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	dma_addr_t req_dma_addr;
+	unsigned int req_len, resp_len;
+	int elem, rc;
+
+	/*
+	* DMA-map SMP request, response buffers
+	*/
+	/* req */
+	sg_req = &task->smp_task.smp_req;
+	elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE);
+	if (!elem)
+		return -ENOMEM;
+	req_len = sg_dma_len(sg_req);
+	req_dma_addr = sg_dma_address(sg_req);
+
+	/* resp */
+	sg_resp = &task->smp_task.smp_resp;
+	elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE);
+	if (!elem) {
+		rc = -ENOMEM;
+		goto err_out_req;
+	}
+	resp_len = sg_dma_len(sg_resp);
+	if ((req_len & 0x3) || (resp_len & 0x3)) {
+		rc = -EINVAL;
+		goto err_out_resp;
+	}
+
+	/* create header */
+	/* dw0 */
+	hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
+			       (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
+			       (1 << CMD_HDR_MODE_OFF) | /* ini mode */
+			       (2 << CMD_HDR_CMD_OFF)); /* smp */
+
+	/* map itct entry */
+	hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF);
+
+	/* dw2 */
+	hdr->dw2 = cpu_to_le32((((req_len-4)/4) << CMD_HDR_CFL_OFF) |
+			       (HISI_SAS_MAX_SMP_RESP_SZ/4 <<
+			       CMD_HDR_MRFL_OFF));
+
+	hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+	hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
+	hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma);
+
+	return 0;
+
+err_out_resp:
+	dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1,
+		     DMA_FROM_DEVICE);
+err_out_req:
+	dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1,
+		     DMA_TO_DEVICE);
+	return rc;
+}
+
+static int prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
+			  struct hisi_sas_slot *slot, int is_tmf,
+			  struct hisi_sas_tmf_task *tmf)
+{
+	struct sas_task *task = slot->task;
+	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
+	struct domain_device *device = task->dev;
+	struct hisi_sas_device *sas_dev = device->lldd_dev;
+	struct hisi_sas_port *port = slot->port;
+	struct sas_ssp_task *ssp_task = &task->ssp_task;
+	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
+	int has_data = 0, rc, priority = is_tmf;
+	u8 *buf_cmd, fburst = 0;
+	u32 dw1, dw2;
+
+	/* create header */
+	hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
+			       (0x2 << CMD_HDR_TLR_CTRL_OFF) |
+			       (port->id << CMD_HDR_PORT_OFF) |
+			       (priority << CMD_HDR_PRIORITY_OFF) |
+			       (1 << CMD_HDR_MODE_OFF) | /* ini mode */
+			       (1 << CMD_HDR_CMD_OFF)); /* ssp */
+
+	dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF;
+
+	if (is_tmf) {
+		dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+	} else {
+		switch (scsi_cmnd->sc_data_direction) {
+		case DMA_TO_DEVICE:
+			dw1 |= 2 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+			has_data = 1;
+			break;
+		case DMA_FROM_DEVICE:
+			dw1 |= 1 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+			has_data = 1;
+			break;
+		default:
+			dw1 |= 0 << CMD_HDR_SSP_FRAME_TYPE_OFF;
+		}
+	}
+
+	/* map itct entry */
+	dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF;
+	hdr->dw1 = cpu_to_le32(dw1);
+
+	if (is_tmf) {
+		dw2 = ((sizeof(struct ssp_tmf_iu) +
+			sizeof(struct ssp_frame_hdr)+3)/4) <<
+			CMD_HDR_CFL_OFF;
+	} else {
+		dw2 = ((sizeof(struct ssp_command_iu) +
+			sizeof(struct ssp_frame_hdr)+3)/4) <<
+			CMD_HDR_CFL_OFF;
+	}
+
+	dw2 |= (HISI_SAS_MAX_SSP_RESP_SZ/4) << CMD_HDR_MRFL_OFF;
+
+	hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
+
+	if (has_data) {
+		rc = prep_prd_sge_v1_hw(hisi_hba, slot, hdr, task->scatter,
+					slot->n_elem);
+		if (rc)
+			return rc;
+	}
+
+	hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
+	hdr->cmd_table_addr = cpu_to_le64(slot->command_table_dma);
+	hdr->sts_buffer_addr = cpu_to_le64(slot->status_buffer_dma);
+
+	buf_cmd = slot->command_table + sizeof(struct ssp_frame_hdr);
+	if (task->ssp_task.enable_first_burst) {
+		fburst = (1 << 7);
+		dw2 |= 1 << CMD_HDR_FIRST_BURST_OFF;
+	}
+	hdr->dw2 = cpu_to_le32(dw2);
+
+	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
+	if (!is_tmf) {
+		buf_cmd[9] = fburst | task->ssp_task.task_attr |
+				(task->ssp_task.task_prio << 3);
+		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
+				task->ssp_task.cmd->cmd_len);
+	} else {
+		buf_cmd[10] = tmf->tmf;
+		switch (tmf->tmf) {
+		case TMF_ABORT_TASK:
+		case TMF_QUERY_TASK:
+			buf_cmd[12] =
+				(tmf->tag_of_task_to_be_managed >> 8) & 0xff;
+			buf_cmd[13] =
+				tmf->tag_of_task_to_be_managed & 0xff;
+			break;
+		default:
+			break;
+		}
+	}
+
+	return 0;
+}
+
+/* by default, task resp is complete */
+static void slot_err_v1_hw(struct hisi_hba *hisi_hba,
+			   struct sas_task *task,
+			   struct hisi_sas_slot *slot)
+{
+	struct task_status_struct *ts = &task->task_status;
+	struct hisi_sas_err_record *err_record = slot->status_buffer;
+	struct device *dev = &hisi_hba->pdev->dev;
+
+	switch (task->task_proto) {
+	case SAS_PROTOCOL_SSP:
+	{
+		int error = -1;
+		u32 dma_err_type = cpu_to_le32(err_record->dma_err_type);
+		u32 dma_tx_err_type = ((dma_err_type &
+					ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >>
+					ERR_HDR_DMA_TX_ERR_TYPE_OFF;
+		u32 dma_rx_err_type = ((dma_err_type &
+					ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >>
+					ERR_HDR_DMA_RX_ERR_TYPE_OFF;
+		u32 trans_tx_fail_type =
+				cpu_to_le32(err_record->trans_tx_fail_type);
+		u32 trans_rx_fail_type =
+				cpu_to_le32(err_record->trans_rx_fail_type);
+
+		if (dma_tx_err_type) {
+			/* dma tx err */
+			error = ffs(dma_tx_err_type)
+				- 1 + DMA_TX_ERR_BASE;
+		} else if (dma_rx_err_type) {
+			/* dma rx err */
+			error = ffs(dma_rx_err_type)
+				- 1 + DMA_RX_ERR_BASE;
+		} else if (trans_tx_fail_type) {
+			/* trans tx err */
+			error = ffs(trans_tx_fail_type)
+				- 1 + TRANS_TX_FAIL_BASE;
+		} else if (trans_rx_fail_type) {
+			/* trans rx err */
+			error = ffs(trans_rx_fail_type)
+				- 1 + TRANS_RX_FAIL_BASE;
+		}
+
+		switch (error) {
+		case DMA_TX_DATA_UNDERFLOW_ERR:
+		case DMA_RX_DATA_UNDERFLOW_ERR:
+		{
+			ts->residual = 0;
+			ts->stat = SAS_DATA_UNDERRUN;
+			break;
+		}
+		case DMA_TX_DATA_SGL_OVERFLOW_ERR:
+		case DMA_TX_DIF_SGL_OVERFLOW_ERR:
+		case DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR:
+		case DMA_RX_DATA_OVERFLOW_ERR:
+		case TRANS_RX_FRAME_OVERRUN_ERR:
+		case TRANS_RX_LINK_BUF_OVERRUN_ERR:
+		{
+			ts->stat = SAS_DATA_OVERRUN;
+			ts->residual = 0;
+			break;
+		}
+		case TRANS_TX_PHY_NOT_ENABLE_ERR:
+		{
+			ts->stat = SAS_PHY_DOWN;
+			break;
+		}
+		case TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR:
+		case TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR:
+		case TRANS_TX_OPEN_REJCT_BY_OTHER_ERR:
+		case TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR:
+		case TRANS_TX_OPEN_REJCT_STP_BUSY_ERR:
+		case TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR:
+		case TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR:
+		case TRANS_TX_OPEN_REJCT_BAD_DEST_ERR:
+		case TRANS_TX_OPEN_BREAK_RECEIVE_ERR:
+		case TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR:
+		case TRANS_TX_OPEN_REJCT_NO_DEST_ERR:
+		case TRANS_TX_OPEN_RETRY_ERR:
+		{
+			ts->stat = SAS_OPEN_REJECT;
+			ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+			break;
+		}
+		case TRANS_TX_OPEN_TIMEOUT_ERR:
+		{
+			ts->stat = SAS_OPEN_TO;
+			break;
+		}
+		case TRANS_TX_NAK_RECEIVE_ERR:
+		case TRANS_TX_ACK_NAK_TIMEOUT_ERR:
+		{
+			ts->stat = SAS_NAK_R_ERR;
+			break;
+		}
+		default:
+		{
+			ts->stat = SAM_STAT_CHECK_CONDITION;
+			break;
+		}
+		}
+	}
+		break;
+	case SAS_PROTOCOL_SMP:
+		ts->stat = SAM_STAT_CHECK_CONDITION;
+		break;
+
+	case SAS_PROTOCOL_SATA:
+	case SAS_PROTOCOL_STP:
+	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+	{
+		dev_err(dev, "slot err: SATA/STP not supported");
+	}
+		break;
+	default:
+		break;
+	}
+
+}
+
+static int slot_complete_v1_hw(struct hisi_hba *hisi_hba,
+			       struct hisi_sas_slot *slot, int abort)
+{
+	struct sas_task *task = slot->task;
+	struct hisi_sas_device *sas_dev;
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct task_status_struct *ts;
+	struct domain_device *device;
+	enum exec_status sts;
+	struct hisi_sas_complete_v1_hdr *complete_queue =
+			(struct hisi_sas_complete_v1_hdr *)
+			hisi_hba->complete_hdr[slot->cmplt_queue];
+	struct hisi_sas_complete_v1_hdr *complete_hdr;
+	u32 cmplt_hdr_data;
+
+	complete_hdr = &complete_queue[slot->cmplt_queue_slot];
+	cmplt_hdr_data = le32_to_cpu(complete_hdr->data);
+
+	if (unlikely(!task || !task->lldd_task || !task->dev))
+		return -EINVAL;
+
+	ts = &task->task_status;
+	device = task->dev;
+	sas_dev = device->lldd_dev;
+
+	task->task_state_flags &=
+		~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+	task->task_state_flags |= SAS_TASK_STATE_DONE;
+
+	memset(ts, 0, sizeof(*ts));
+	ts->resp = SAS_TASK_COMPLETE;
+
+	if (unlikely(!sas_dev || abort)) {
+		if (!sas_dev)
+			dev_dbg(dev, "slot complete: port has not device\n");
+		ts->stat = SAS_PHY_DOWN;
+		goto out;
+	}
+
+	if (cmplt_hdr_data & CMPLT_HDR_IO_CFG_ERR_MSK) {
+		u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq IPTT err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq type err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq force phy err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq phy id err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq abort flag err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK)
+			dev_err(dev, "slot complete: [%d:%d] has dq order frame len err",
+				slot->cmplt_queue, slot->cmplt_queue_slot);
+
+		ts->stat = SAS_OPEN_REJECT;
+		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+		goto out;
+	}
+
+	if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK) {
+		if (!(cmplt_hdr_data & CMPLT_HDR_CMD_CMPLT_MSK) ||
+		    !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK))
+			ts->stat = SAS_DATA_OVERRUN;
+		else
+			slot_err_v1_hw(hisi_hba, task, slot);
+
+		goto out;
+	}
+
+	switch (task->task_proto) {
+	case SAS_PROTOCOL_SSP:
+	{
+		struct ssp_response_iu *iu = slot->status_buffer +
+			sizeof(struct hisi_sas_err_record);
+		sas_ssp_task_response(dev, task, iu);
+		break;
+	}
+	case SAS_PROTOCOL_SMP:
+	{
+		void *to;
+		struct scatterlist *sg_resp = &task->smp_task.smp_resp;
+
+		ts->stat = SAM_STAT_GOOD;
+		to = kmap_atomic(sg_page(sg_resp));
+
+		dma_unmap_sg(dev, &task->smp_task.smp_resp, 1,
+			     DMA_FROM_DEVICE);
+		dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
+			     DMA_TO_DEVICE);
+		memcpy(to + sg_resp->offset,
+		       slot->status_buffer +
+		       sizeof(struct hisi_sas_err_record),
+		       sg_dma_len(sg_resp));
+		kunmap_atomic(to);
+		break;
+	}
+	case SAS_PROTOCOL_SATA:
+	case SAS_PROTOCOL_STP:
+	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+		dev_err(dev, "slot complete: SATA/STP not supported");
+		break;
+
+	default:
+		ts->stat = SAM_STAT_CHECK_CONDITION;
+		break;
+	}
+
+	if (!slot->port->port_attached) {
+		dev_err(dev, "slot complete: port %d has removed\n",
+			slot->port->sas_port.id);
+		ts->stat = SAS_PHY_DOWN;
+	}
+
+out:
+	if (sas_dev && sas_dev->running_req)
+		sas_dev->running_req--;
+
+	hisi_sas_slot_task_free(hisi_hba, task, slot);
+	sts = ts->stat;
+
+	if (task->task_done)
+		task->task_done(task);
+
+	return sts;
+}
+
+/* Interrupts */
+static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
+{
+	struct hisi_sas_phy *phy = p;
+	struct hisi_hba *hisi_hba = phy->hisi_hba;
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	int i, phy_no = sas_phy->id;
+	u32 irq_value, context, port_id, link_rate;
+	u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
+	struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
+	irqreturn_t res = IRQ_HANDLED;
+
+	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+	if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) {
+		dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n",
+			irq_value);
+		res = IRQ_NONE;
+		goto end;
+	}
+
+	context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
+	if (context & 1 << phy_no) {
+		dev_err(dev, "phyup: phy%d SATA attached equipment\n",
+			phy_no);
+		goto end;
+	}
+
+	port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no))
+		  & 0xf;
+	if (port_id == 0xf) {
+		dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
+		res = IRQ_NONE;
+		goto end;
+	}
+
+	for (i = 0; i < 6; i++) {
+		u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
+					RX_IDAF_DWORD0 + (i * 4));
+		frame_rcvd[i] = __swab32(idaf);
+	}
+
+	/* Get the linkrate */
+	link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+	link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+	sas_phy->linkrate = link_rate;
+	sas_phy->oob_mode = SAS_OOB_MODE;
+	memcpy(sas_phy->attached_sas_addr,
+		&id->sas_addr, SAS_ADDR_SIZE);
+	dev_info(dev, "phyup: phy%d link_rate=%d\n",
+		 phy_no, link_rate);
+	phy->port_id = port_id;
+	phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+	phy->phy_type |= PORT_TYPE_SAS;
+	phy->phy_attached = 1;
+	phy->identify.device_type = id->dev_type;
+	phy->frame_rcvd_size =	sizeof(struct sas_identify_frame);
+	if (phy->identify.device_type == SAS_END_DEVICE)
+		phy->identify.target_port_protocols =
+			SAS_PROTOCOL_SSP;
+	else if (phy->identify.device_type != SAS_PHY_UNUSED)
+		phy->identify.target_port_protocols =
+			SAS_PROTOCOL_SMP;
+	queue_work(hisi_hba->wq, &phy->phyup_ws);
+
+end:
+	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+			     CHL_INT2_SL_PHY_ENA_MSK);
+
+	if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) {
+		u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+		chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK;
+		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0);
+		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee);
+	}
+
+	return res;
+}
+
+static irqreturn_t int_bcast_v1_hw(int irq, void *p)
+{
+	struct hisi_sas_phy *phy = p;
+	struct hisi_hba *hisi_hba = phy->hisi_hba;
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	struct sas_ha_struct *sha = &hisi_hba->sha;
+	struct device *dev = &hisi_hba->pdev->dev;
+	int phy_no = sas_phy->id;
+	u32 irq_value;
+	irqreturn_t res = IRQ_HANDLED;
+
+	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+
+	if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) {
+		dev_err(dev, "bcast: irq_value = %x not set enable bit",
+			irq_value);
+		res = IRQ_NONE;
+		goto end;
+	}
+
+	sha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
+
+end:
+	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+			     CHL_INT2_SL_RX_BC_ACK_MSK);
+
+	return res;
+}
+
+static irqreturn_t int_abnormal_v1_hw(int irq, void *p)
+{
+	struct hisi_sas_phy *phy = p;
+	struct hisi_hba *hisi_hba = phy->hisi_hba;
+	struct device *dev = &hisi_hba->pdev->dev;
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	u32 irq_value, irq_mask_old;
+	int phy_no = sas_phy->id;
+
+	/* mask_int0 */
+	irq_mask_old = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0_MSK);
+	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3fffff);
+
+	/* read int0 */
+	irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+	if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) {
+		u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+
+		hisi_sas_phy_down(hisi_hba, phy_no,
+				  (phy_state & 1 << phy_no) ? 1 : 0);
+	}
+
+	if (irq_value & CHL_INT0_ID_TIMEOUT_MSK)
+		dev_dbg(dev, "abnormal: ID_TIMEOUT phy%d identify timeout\n",
+			phy_no);
+
+	if (irq_value & CHL_INT0_DWS_LOST_MSK)
+		dev_dbg(dev, "abnormal: DWS_LOST phy%d dws lost\n", phy_no);
+
+	if (irq_value & CHL_INT0_SN_FAIL_NGR_MSK)
+		dev_dbg(dev, "abnormal: SN_FAIL_NGR phy%d sn fail ngr\n",
+			phy_no);
+
+	if (irq_value & CHL_INT0_SL_IDAF_FAIL_MSK ||
+		irq_value & CHL_INT0_SL_OPAF_FAIL_MSK)
+		dev_dbg(dev, "abnormal: SL_ID/OPAF_FAIL phy%d check adr frm err\n",
+			phy_no);
+
+	if (irq_value & CHL_INT0_SL_PS_FAIL_OFF)
+		dev_dbg(dev, "abnormal: SL_PS_FAIL phy%d fail\n", phy_no);
+
+	/* write to zero */
+	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value);
+
+	if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK)
+		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
+				0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
+	else
+		hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
+				irq_mask_old);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
+{
+	struct hisi_sas_cq *cq = p;
+	struct hisi_hba *hisi_hba = cq->hisi_hba;
+	struct hisi_sas_slot *slot;
+	int queue = cq->id;
+	struct hisi_sas_complete_v1_hdr *complete_queue =
+			(struct hisi_sas_complete_v1_hdr *)
+			hisi_hba->complete_hdr[queue];
+	u32 irq_value, rd_point, wr_point;
+
+	irq_value = hisi_sas_read32(hisi_hba, OQ_INT_SRC);
+
+	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
+
+	rd_point = hisi_sas_read32(hisi_hba,
+			COMPL_Q_0_RD_PTR + (0x14 * queue));
+	wr_point = hisi_sas_read32(hisi_hba,
+			COMPL_Q_0_WR_PTR + (0x14 * queue));
+
+	while (rd_point != wr_point) {
+		struct hisi_sas_complete_v1_hdr *complete_hdr;
+		int idx;
+		u32 cmplt_hdr_data;
+
+		complete_hdr = &complete_queue[rd_point];
+		cmplt_hdr_data = cpu_to_le32(complete_hdr->data);
+		idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >>
+		      CMPLT_HDR_IPTT_OFF;
+		slot = &hisi_hba->slot_info[idx];
+
+		/* The completion queue and queue slot index are not
+		 * necessarily the same as the delivery queue and
+		 * queue slot index.
+		 */
+		slot->cmplt_queue_slot = rd_point;
+		slot->cmplt_queue = queue;
+		slot_complete_v1_hw(hisi_hba, slot, 0);
+
+		if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
+			rd_point = 0;
+	}
+
+	/* update rd_point */
+	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t fatal_ecc_int_v1_hw(int irq, void *p)
+{
+	struct hisi_hba *hisi_hba = p;
+	struct device *dev = &hisi_hba->pdev->dev;
+	u32 ecc_int = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
+
+	if (ecc_int & SAS_ECC_INTR_DQ_ECC1B_MSK) {
+		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+		panic("%s: Fatal DQ 1b ECC interrupt (0x%x)\n",
+		      dev_name(dev), ecc_err);
+	}
+
+	if (ecc_int & SAS_ECC_INTR_DQ_ECCBAD_MSK) {
+		u32 addr = (hisi_sas_read32(hisi_hba, HGC_DQ_ECC_ADDR) &
+				HGC_DQ_ECC_ADDR_BAD_MSK) >>
+				HGC_DQ_ECC_ADDR_BAD_OFF;
+
+		panic("%s: Fatal DQ RAM ECC interrupt @ 0x%08x\n",
+		      dev_name(dev), addr);
+	}
+
+	if (ecc_int & SAS_ECC_INTR_IOST_ECC1B_MSK) {
+		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+		panic("%s: Fatal IOST 1b ECC interrupt (0x%x)\n",
+		      dev_name(dev), ecc_err);
+	}
+
+	if (ecc_int & SAS_ECC_INTR_IOST_ECCBAD_MSK) {
+		u32 addr = (hisi_sas_read32(hisi_hba, HGC_IOST_ECC_ADDR) &
+				HGC_IOST_ECC_ADDR_BAD_MSK) >>
+				HGC_IOST_ECC_ADDR_BAD_OFF;
+
+		panic("%s: Fatal IOST RAM ECC interrupt @ 0x%08x\n",
+		      dev_name(dev), addr);
+	}
+
+	if (ecc_int & SAS_ECC_INTR_ITCT_ECCBAD_MSK) {
+		u32 addr = (hisi_sas_read32(hisi_hba, HGC_ITCT_ECC_ADDR) &
+				HGC_ITCT_ECC_ADDR_BAD_MSK) >>
+				HGC_ITCT_ECC_ADDR_BAD_OFF;
+
+		panic("%s: Fatal TCT RAM ECC interrupt @ 0x%08x\n",
+		      dev_name(dev), addr);
+	}
+
+	if (ecc_int & SAS_ECC_INTR_ITCT_ECC1B_MSK) {
+		u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
+
+		panic("%s: Fatal ITCT 1b ECC interrupt (0x%x)\n",
+		      dev_name(dev), ecc_err);
+	}
+
+	hisi_sas_write32(hisi_hba, SAS_ECC_INTR, ecc_int | 0x3f);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p)
+{
+	struct hisi_hba *hisi_hba = p;
+	struct device *dev = &hisi_hba->pdev->dev;
+	u32 axi_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC2);
+	u32 axi_info = hisi_sas_read32(hisi_hba, HGC_AXI_FIFO_ERR_INFO);
+
+	if (axi_int & ENT_INT_SRC2_DQ_CFG_ERR_MSK)
+		panic("%s: Fatal DQ_CFG_ERR interrupt (0x%x)\n",
+		      dev_name(dev), axi_info);
+
+	if (axi_int & ENT_INT_SRC2_CQ_CFG_ERR_MSK)
+		panic("%s: Fatal CQ_CFG_ERR interrupt (0x%x)\n",
+		      dev_name(dev), axi_info);
+
+	if (axi_int & ENT_INT_SRC2_AXI_WRONG_INT_MSK)
+		panic("%s: Fatal AXI_WRONG_INT interrupt (0x%x)\n",
+		      dev_name(dev), axi_info);
+
+	if (axi_int & ENT_INT_SRC2_AXI_OVERLF_INT_MSK)
+		panic("%s: Fatal AXI_OVERLF_INT incorrect interrupt (0x%x)\n",
+		      dev_name(dev), axi_info);
+
+	hisi_sas_write32(hisi_hba, ENT_INT_SRC2, axi_int | 0x30000000);
+
+	return IRQ_HANDLED;
+}
+
+static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
+	int_bcast_v1_hw,
+	int_phyup_v1_hw,
+	int_abnormal_v1_hw
+};
+
+static irq_handler_t fatal_interrupts[HISI_SAS_MAX_QUEUES] = {
+	fatal_ecc_int_v1_hw,
+	fatal_axi_int_v1_hw
+};
+
+static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+	struct platform_device *pdev = hisi_hba->pdev;
+	struct device *dev = &pdev->dev;
+	int i, j, irq, rc, idx;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+
+		idx = i * HISI_SAS_PHY_INT_NR;
+		for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) {
+			irq = platform_get_irq(pdev, idx);
+			if (!irq) {
+				dev_err(dev,
+					"irq init: fail map phy interrupt %d\n",
+					idx);
+				return -ENOENT;
+			}
+
+			rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
+					      DRV_NAME " phy", phy);
+			if (rc) {
+				dev_err(dev, "irq init: could not request "
+					"phy interrupt %d, rc=%d\n",
+					irq, rc);
+				return -ENOENT;
+			}
+		}
+	}
+
+	idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR;
+	for (i = 0; i < hisi_hba->queue_count; i++, idx++) {
+		irq = platform_get_irq(pdev, idx);
+		if (!irq) {
+			dev_err(dev, "irq init: could not map cq interrupt %d\n",
+				idx);
+			return -ENOENT;
+		}
+
+		rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0,
+				      DRV_NAME " cq", &hisi_hba->cq[i]);
+		if (rc) {
+			dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
+				irq, rc);
+			return -ENOENT;
+		}
+	}
+
+	idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count;
+	for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) {
+		irq = platform_get_irq(pdev, idx);
+		if (!irq) {
+			dev_err(dev, "irq init: could not map fatal interrupt %d\n",
+				idx);
+			return -ENOENT;
+		}
+
+		rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
+				      DRV_NAME " fatal", hisi_hba);
+		if (rc) {
+			dev_err(dev,
+				"irq init: could not request fatal interrupt %d, rc=%d\n",
+				irq, rc);
+			return -ENOENT;
+		}
+	}
+
+	return 0;
+}
+
+static int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba)
+{
+	int i;
+	u32 val;
+
+	for (i = 0; i < hisi_hba->n_phy; i++) {
+		/* Clear interrupt status */
+		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val);
+		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val);
+		val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val);
+
+		/* Unmask interrupt */
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a);
+
+		/* bypass chip bug mask abnormal intr */
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK,
+				0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
+	}
+
+	return 0;
+}
+
+static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
+{
+	int rc;
+
+	rc = hw_init_v1_hw(hisi_hba);
+	if (rc)
+		return rc;
+
+	rc = interrupt_init_v1_hw(hisi_hba);
+	if (rc)
+		return rc;
+
+	rc = interrupt_openall_v1_hw(hisi_hba);
+	if (rc)
+		return rc;
+
+	phys_init_v1_hw(hisi_hba);
+
+	return 0;
+}
+
+static const struct hisi_sas_hw hisi_sas_v1_hw = {
+	.hw_init = hisi_sas_v1_init,
+	.setup_itct = setup_itct_v1_hw,
+	.sl_notify = sl_notify_v1_hw,
+	.free_device = free_device_v1_hw,
+	.prep_smp = prep_smp_v1_hw,
+	.prep_ssp = prep_ssp_v1_hw,
+	.get_free_slot = get_free_slot_v1_hw,
+	.start_delivery = start_delivery_v1_hw,
+	.slot_complete = slot_complete_v1_hw,
+	.phy_enable = enable_phy_v1_hw,
+	.phy_disable = disable_phy_v1_hw,
+	.phy_hard_reset = phy_hard_reset_v1_hw,
+	.get_wideport_bitmap = get_wideport_bitmap_v1_hw,
+	.complete_hdr_size = sizeof(struct hisi_sas_complete_v1_hdr),
+};
+
+static int hisi_sas_v1_probe(struct platform_device *pdev)
+{
+	return hisi_sas_probe(pdev, &hisi_sas_v1_hw);
+}
+
+static int hisi_sas_v1_remove(struct platform_device *pdev)
+{
+	return hisi_sas_remove(pdev);
+}
+
+static const struct of_device_id sas_v1_of_match[] = {
+	{ .compatible = "hisilicon,hip05-sas-v1",},
+	{},
+};
+MODULE_DEVICE_TABLE(of, sas_v1_of_match);
+
+static struct platform_driver hisi_sas_v1_driver = {
+	.probe = hisi_sas_v1_probe,
+	.remove = hisi_sas_v1_remove,
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = sas_v1_of_match,
+	},
+};
+
+module_platform_driver(hisi_sas_v1_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
+MODULE_DESCRIPTION("HISILICON SAS controller v1 hw driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index a3860367b568..38ce0e308fbe 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -750,7 +750,6 @@ static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev,
 }
 
 #define MAX_PATHS 8
-
 static ssize_t path_info_show(struct device *dev,
 	     struct device_attribute *attr, char *buf)
 {
@@ -792,10 +791,8 @@ static ssize_t path_info_show(struct device *dev,
 				hdev->bus, hdev->target, hdev->lun,
 				scsi_device_type(hdev->devtype));
 
-		if (hdev->external ||
-			hdev->devtype == TYPE_RAID ||
-			is_logical_device(hdev)) {
-			output_len += snprintf(buf + output_len,
+		if (hdev->devtype == TYPE_RAID || is_logical_device(hdev)) {
+			output_len += scnprintf(buf + output_len,
 						PAGE_SIZE - output_len,
 						"%s\n", active);
 			continue;
@@ -808,29 +805,28 @@ static ssize_t path_info_show(struct device *dev,
 			phys_connector[0] = '0';
 		if (phys_connector[1] < '0')
 			phys_connector[1] = '0';
-		if (hdev->phys_connector[i] > 0)
-			output_len += snprintf(buf + output_len,
+		output_len += scnprintf(buf + output_len,
 				PAGE_SIZE - output_len,
 				"PORT: %.2s ",
 				phys_connector);
 		if (hdev->devtype == TYPE_DISK && hdev->expose_device) {
 			if (box == 0 || box == 0xFF) {
-				output_len += snprintf(buf + output_len,
+				output_len += scnprintf(buf + output_len,
 					PAGE_SIZE - output_len,
 					"BAY: %hhu %s\n",
 					bay, active);
 			} else {
-				output_len += snprintf(buf + output_len,
+				output_len += scnprintf(buf + output_len,
 					PAGE_SIZE - output_len,
 					"BOX: %hhu BAY: %hhu %s\n",
 					box, bay, active);
 			}
 		} else if (box != 0 && box != 0xFF) {
-			output_len += snprintf(buf + output_len,
+			output_len += scnprintf(buf + output_len,
 				PAGE_SIZE - output_len, "BOX: %hhu %s\n",
 				box, active);
 		} else
-			output_len += snprintf(buf + output_len,
+			output_len += scnprintf(buf + output_len,
 				PAGE_SIZE - output_len, "%s\n", active);
 	}
 
@@ -3191,6 +3187,87 @@ out:
 	return rc;
 }
 
+/*
+ * get enclosure information
+ * struct ReportExtendedLUNdata *rlep - Used for BMIC drive number
+ * struct hpsa_scsi_dev_t *encl_dev - device entry for enclosure
+ * Uses id_physical_device to determine the box_index.
+ */
+static void hpsa_get_enclosure_info(struct ctlr_info *h,
+			unsigned char *scsi3addr,
+			struct ReportExtendedLUNdata *rlep, int rle_index,
+			struct hpsa_scsi_dev_t *encl_dev)
+{
+	int rc = -1;
+	struct CommandList *c = NULL;
+	struct ErrorInfo *ei = NULL;
+	struct bmic_sense_storage_box_params *bssbp = NULL;
+	struct bmic_identify_physical_device *id_phys = NULL;
+	struct ext_report_lun_entry *rle = &rlep->LUN[rle_index];
+	u16 bmic_device_index = 0;
+
+	bmic_device_index = GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]);
+
+	if (bmic_device_index == 0xFF00)
+		goto out;
+
+	bssbp = kzalloc(sizeof(*bssbp), GFP_KERNEL);
+	if (!bssbp)
+		goto out;
+
+	id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL);
+	if (!id_phys)
+		goto out;
+
+	rc = hpsa_bmic_id_physical_device(h, scsi3addr, bmic_device_index,
+						id_phys, sizeof(*id_phys));
+	if (rc) {
+		dev_warn(&h->pdev->dev, "%s: id_phys failed %d bdi[0x%x]\n",
+			__func__, encl_dev->external, bmic_device_index);
+		goto out;
+	}
+
+	c = cmd_alloc(h);
+
+	rc = fill_cmd(c, BMIC_SENSE_STORAGE_BOX_PARAMS, h, bssbp,
+			sizeof(*bssbp), 0, RAID_CTLR_LUNID, TYPE_CMD);
+
+	if (rc)
+		goto out;
+
+	if (id_phys->phys_connector[1] == 'E')
+		c->Request.CDB[5] = id_phys->box_index;
+	else
+		c->Request.CDB[5] = 0;
+
+	rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE,
+						NO_TIMEOUT);
+	if (rc)
+		goto out;
+
+	ei = c->err_info;
+	if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) {
+		rc = -1;
+		goto out;
+	}
+
+	encl_dev->box[id_phys->active_path_number] = bssbp->phys_box_on_port;
+	memcpy(&encl_dev->phys_connector[id_phys->active_path_number],
+		bssbp->phys_connector, sizeof(bssbp->phys_connector));
+
+	rc = IO_OK;
+out:
+	kfree(bssbp);
+	kfree(id_phys);
+
+	if (c)
+		cmd_free(h, c);
+
+	if (rc != IO_OK)
+		hpsa_show_dev_msg(KERN_INFO, h, encl_dev,
+			"Error, could not get enclosure information\n");
+}
+
 static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h,
 						unsigned char *scsi3addr)
 {
@@ -4032,7 +4109,8 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
 
 		/* skip masked non-disk devices */
 		if (MASKED_DEVICE(lunaddrbytes) && physical_device &&
-			(physdev_list->LUN[phys_dev_index].device_flags & 0x01))
+		   (physdev_list->LUN[phys_dev_index].device_type != 0x06) &&
+		   (physdev_list->LUN[phys_dev_index].device_flags & 0x01))
 			continue;
 
 		/* Get device type, vendor, model, device id */
@@ -4116,7 +4194,12 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
 			break;
 		case TYPE_TAPE:
 		case TYPE_MEDIUM_CHANGER:
+			ncurrent++;
+			break;
 		case TYPE_ENCLOSURE:
+			hpsa_get_enclosure_info(h, lunaddrbytes,
+						physdev_list, phys_dev_index,
+						this_device);
 			ncurrent++;
 			break;
 		case TYPE_RAID:
@@ -6629,6 +6712,16 @@ static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h,
 			c->Request.CDB[7] = (size >> 16) & 0xFF;
 			c->Request.CDB[8] = (size >> 8) & 0XFF;
 			break;
+		case BMIC_SENSE_STORAGE_BOX_PARAMS:
+			c->Request.CDBLen = 10;
+			c->Request.type_attr_dir =
+				TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
+			c->Request.Timeout = 0;
+			c->Request.CDB[0] = BMIC_READ;
+			c->Request.CDB[6] = BMIC_SENSE_STORAGE_BOX_PARAMS;
+			c->Request.CDB[7] = (size >> 16) & 0xFF;
+			c->Request.CDB[8] = (size >> 8) & 0XFF;
+			break;
 		case BMIC_IDENTIFY_CONTROLLER:
 			c->Request.CDBLen = 10;
 			c->Request.type_attr_dir =
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index ae5beda1bdb5..fdd39fc0b199 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -400,7 +400,7 @@ struct offline_device_entry {
 #define HPSA_PHYSICAL_DEVICE_BUS	0
 #define HPSA_RAID_VOLUME_BUS		1
 #define HPSA_EXTERNAL_RAID_VOLUME_BUS	2
-#define HPSA_HBA_BUS			3
+#define HPSA_HBA_BUS			0
 
 /*
 	Send the command to the hardware
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index d92ef0d352b5..6a919ada96b3 100644
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -291,6 +291,7 @@ struct SenseSubsystem_info {
 #define BMIC_SENSE_DIAG_OPTIONS 0xF5
 #define HPSA_DIAG_OPTS_DISABLE_RLD_CACHING 0x40000000
 #define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
+#define BMIC_SENSE_STORAGE_BOX_PARAMS 0x65
 
 /* Command List Structure */
 union SCSI3Addr {
@@ -842,5 +843,17 @@ struct bmic_sense_subsystem_info {
 	u8	pad[332];
 };
 
+struct bmic_sense_storage_box_params {
+	u8	reserved[36];
+	u8	inquiry_valid;
+	u8	reserved_1[68];
+	u8	phys_box_on_port;
+	u8	reserved_2[22];
+	u16	connection_info;
+	u8	reserver_3[84];
+	u8	phys_connector[2];
+	u8	reserved_4[296];
+};
+
 #pragma pack()
 #endif /* HPSA_CMD_H */
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index 6a926bae76b2..7a91cf3ff173 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -110,11 +110,6 @@
 #define i91u_MAXQUEUE		2
 #define i91u_REVID "Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a"
 
-#define I950_DEVICE_ID	0x9500	/* Initio's inic-950 product ID   */
-#define I940_DEVICE_ID	0x9400	/* Initio's inic-940 product ID   */
-#define I935_DEVICE_ID	0x9401	/* Initio's inic-935 product ID   */
-#define I920_DEVICE_ID	0x0002	/* Initio's other product ID      */
-
 #ifdef DEBUG_i91u
 static unsigned int i91u_debug = DEBUG_DEFAULT;
 #endif
@@ -127,17 +122,6 @@ static int setup_debug = 0;
 
 static void i91uSCBPost(u8 * pHcb, u8 * pScb);
 
-/* PCI Devices supported by this driver */
-static struct pci_device_id i91u_pci_devices[] = {
-	{ PCI_VENDOR_ID_INIT,  I950_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ PCI_VENDOR_ID_INIT,  I940_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ PCI_VENDOR_ID_INIT,  I935_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ PCI_VENDOR_ID_INIT,  I920_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ PCI_VENDOR_ID_DOMEX, I920_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{ }
-};
-MODULE_DEVICE_TABLE(pci, i91u_pci_devices);
-
 #define DEBUG_INTERRUPT 0
 #define DEBUG_QUEUE     0
 #define DEBUG_STATE     0
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index ceee9a3fd9e5..90a3ca5a4dbd 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -386,7 +386,6 @@ struct lpfc_vport {
 	uint32_t work_port_events; /* Timeout to be handled  */
 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
-#define WORKER_FDMI_TMO                0x4	/* vport: FDMI timeout */
 #define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
 
 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
@@ -396,7 +395,6 @@ struct lpfc_vport {
 #define WORKER_RAMP_UP_QUEUE           0x1000	/* hba: Increase Q depth */
 #define WORKER_SERVICE_TXQ             0x2000	/* hba: IOCBs on the txq */
 
-	struct timer_list fc_fdmitmo;
 	struct timer_list els_tmofunc;
 	struct timer_list delayed_disc_tmo;
 
@@ -405,6 +403,7 @@ struct lpfc_vport {
 	uint8_t load_flag;
 #define FC_LOADING		0x1	/* HBA in process of loading drvr */
 #define FC_UNLOADING		0x2	/* HBA in process of unloading drvr */
+#define FC_ALLOW_FDMI		0x4	/* port is ready for FDMI requests */
 	/* Vport Config Parameters */
 	uint32_t cfg_scan_down;
 	uint32_t cfg_lun_queue_depth;
@@ -414,10 +413,6 @@ struct lpfc_vport {
 	uint32_t cfg_peer_port_login;
 	uint32_t cfg_fcp_class;
 	uint32_t cfg_use_adisc;
-	uint32_t cfg_fdmi_on;
-#define LPFC_FDMI_SUPPORT	1	/* bit 0 - FDMI supported? */
-#define LPFC_FDMI_REG_DELAY	2	/* bit 1 - 60 sec registration delay */
-#define LPFC_FDMI_ALL_ATTRIB	4	/* bit 2 - register ALL attributes? */
 	uint32_t cfg_discovery_threads;
 	uint32_t cfg_log_verbose;
 	uint32_t cfg_max_luns;
@@ -443,6 +438,10 @@ struct lpfc_vport {
 	unsigned long rcv_buffer_time_stamp;
 	uint32_t vport_flag;
 #define STATIC_VPORT	1
+
+	uint16_t fdmi_num_disc;
+	uint32_t fdmi_hba_mask;
+	uint32_t fdmi_port_mask;
 };
 
 struct hbq_s {
@@ -755,6 +754,11 @@ struct lpfc_hba {
 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
 	uint32_t cfg_enable_dss;
+	uint32_t cfg_fdmi_on;
+#define LPFC_FDMI_NO_SUPPORT	0	/* FDMI not supported */
+#define LPFC_FDMI_SUPPORT	1	/* FDMI supported? */
+#define LPFC_FDMI_SMART_SAN	2	/* SmartSAN supported */
+	uint32_t cfg_enable_SmartSAN;
 	lpfc_vpd_t vpd;		/* vital product data */
 
 	struct pci_dev *pcidev;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index f6446d759d7f..343ae9482891 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -4572,19 +4572,27 @@ LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
 	     255, "Identifies TYPE for additional ring configuration");
 
 /*
-# lpfc_fdmi_on: controls FDMI support.
-#               Set                NOT Set
-#       bit 0 = FDMI support       no FDMI support
-#           LPFC_FDMI_SUPPORT just turns basic support on/off
-#       bit 1 = Register delay     no register delay  (60 seconds)
-#           LPFC_FDMI_REG_DELAY	60 sec registration delay after FDMI login
-#       bit 2 = All attributes     Use a attribute subset
-#           LPFC_FDMI_ALL_ATTRIB applies to both port and HBA attributes
-#           Port attrutes subset: 1 thru 6 OR all: 1 thru 0xd 0x101 0x102 0x103
-#           HBA attributes subset: 1 thru 0xb OR all: 1 thru 0xc
-# Value range [0,7]. Default value is 0.
+# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN
+#       0  = SmartSAN functionality disabled (default)
+#       1  = SmartSAN functionality enabled
+# This parameter will override the value of lpfc_fdmi_on module parameter.
+# Value range is [0,1]. Default value is 0.
 */
-LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 7, "Enable FDMI support");
+LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality");
+
+/*
+# lpfc_fdmi_on: Controls FDMI support.
+#       0       No FDMI support (default)
+#       1       Traditional FDMI support
+#       2       Smart SAN support
+# If lpfc_enable_SmartSAN is set 1, the driver sets lpfc_fdmi_on to value 2
+# overwriting the current value.  If lpfc_enable_SmartSAN is set 0, the
+# driver uses the current value of lpfc_fdmi_on provided it has value 0 or 1.
+# A value of 2 with lpfc_enable_SmartSAN set to 0 causes the driver to
+# set lpfc_fdmi_on back to 1.
+# Value range [0,2]. Default value is 0.
+*/
+LPFC_ATTR_R(fdmi_on, 0, 0, 2, "Enable FDMI support");
 
 /*
 # Specifies the maximum number of ELS cmds we can have outstanding (for
@@ -4815,6 +4823,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_multi_ring_rctl,
 	&dev_attr_lpfc_multi_ring_type,
 	&dev_attr_lpfc_fdmi_on,
+	&dev_attr_lpfc_enable_SmartSAN,
 	&dev_attr_lpfc_max_luns,
 	&dev_attr_lpfc_enable_npiv,
 	&dev_attr_lpfc_fcf_failover_policy,
@@ -4887,7 +4896,6 @@ struct device_attribute *lpfc_vport_attrs[] = {
 	&dev_attr_lpfc_fcp_class,
 	&dev_attr_lpfc_use_adisc,
 	&dev_attr_lpfc_first_burst_size,
-	&dev_attr_lpfc_fdmi_on,
 	&dev_attr_lpfc_max_luns,
 	&dev_attr_nport_evt_cnt,
 	&dev_attr_npiv_info,
@@ -5247,7 +5255,7 @@ lpfc_get_host_speed(struct Scsi_Host *shost)
 
 	spin_lock_irq(shost->host_lock);
 
-	if (lpfc_is_link_up(phba)) {
+	if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) {
 		switch(phba->fc_linkspeed) {
 		case LPFC_LINK_SPEED_1GHZ:
 			fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
@@ -5826,6 +5834,8 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
 	lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
 	lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
+	lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
+	lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN);
 	lpfc_use_msi_init(phba, lpfc_use_msi);
 	lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
 	lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map);
@@ -5846,6 +5856,15 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 		phba->cfg_poll = 0;
 	else
 		phba->cfg_poll = lpfc_poll;
+
+	/* Ensure fdmi_on and enable_SmartSAN don't conflict */
+	if (phba->cfg_enable_SmartSAN) {
+		phba->cfg_fdmi_on = LPFC_FDMI_SMART_SAN;
+	} else {
+		if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
+			phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
+	}
+
 	phba->cfg_soft_wwnn = 0L;
 	phba->cfg_soft_wwpn = 0L;
 	lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
@@ -5879,7 +5898,6 @@ lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
 	lpfc_use_adisc_init(vport, lpfc_use_adisc);
 	lpfc_first_burst_size_init(vport, lpfc_first_burst_size);
 	lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
-	lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
 	lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
 	lpfc_max_luns_init(vport, lpfc_max_luns);
 	lpfc_scan_down_init(vport, lpfc_scan_down);
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index b0e6fe46448d..4e55b35180a4 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -72,6 +72,7 @@ void lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *);
 void lpfc_retry_pport_discovery(struct lpfc_hba *);
 void lpfc_release_rpi(struct lpfc_hba *, struct lpfc_vport *, uint16_t);
 
+void lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -167,9 +168,8 @@ void lpfc_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
 			 struct lpfc_iocbq *);
 int lpfc_ct_handle_unsol_abort(struct lpfc_hba *, struct hbq_dmabuf *);
 int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
-int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
-void lpfc_fdmi_tmo(unsigned long);
-void lpfc_fdmi_timeout_handler(struct lpfc_vport *);
+int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int, uint32_t);
+void lpfc_fdmi_num_disc_check(struct lpfc_vport *);
 void lpfc_delayed_disc_tmo(unsigned long);
 void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
 
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 8fded1f7605f..79e261d2a0c8 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -48,15 +48,26 @@
 #include "lpfc_vport.h"
 #include "lpfc_debugfs.h"
 
-/* FDMI Port Speed definitions */
-#define HBA_PORTSPEED_1GBIT		0x0001	/* 1 GBit/sec */
-#define HBA_PORTSPEED_2GBIT		0x0002	/* 2 GBit/sec */
-#define HBA_PORTSPEED_4GBIT		0x0008	/* 4 GBit/sec */
-#define HBA_PORTSPEED_10GBIT		0x0004	/* 10 GBit/sec */
-#define HBA_PORTSPEED_8GBIT		0x0010	/* 8 GBit/sec */
-#define HBA_PORTSPEED_16GBIT		0x0020	/* 16 GBit/sec */
-#define HBA_PORTSPEED_32GBIT		0x0040  /* 32 GBit/sec */
-#define HBA_PORTSPEED_UNKNOWN		0x0800	/* Unknown */
+/* FDMI Port Speed definitions - FC-GS-7 */
+#define HBA_PORTSPEED_1GFC		0x00000001	/* 1G FC */
+#define HBA_PORTSPEED_2GFC		0x00000002	/* 2G FC */
+#define HBA_PORTSPEED_4GFC		0x00000008	/* 4G FC */
+#define HBA_PORTSPEED_10GFC		0x00000004	/* 10G FC */
+#define HBA_PORTSPEED_8GFC		0x00000010	/* 8G FC */
+#define HBA_PORTSPEED_16GFC		0x00000020	/* 16G FC */
+#define HBA_PORTSPEED_32GFC		0x00000040	/* 32G FC */
+#define HBA_PORTSPEED_20GFC		0x00000080	/* 20G FC */
+#define HBA_PORTSPEED_40GFC		0x00000100	/* 40G FC */
+#define HBA_PORTSPEED_128GFC		0x00000200	/* 128G FC */
+#define HBA_PORTSPEED_64GFC		0x00000400	/* 64G FC */
+#define HBA_PORTSPEED_256GFC		0x00000800	/* 256G FC */
+#define HBA_PORTSPEED_UNKNOWN		0x00008000	/* Unknown */
+#define HBA_PORTSPEED_10GE		0x00010000	/* 10G E */
+#define HBA_PORTSPEED_40GE		0x00020000	/* 40G E */
+#define HBA_PORTSPEED_100GE		0x00040000	/* 100G E */
+#define HBA_PORTSPEED_25GE		0x00080000	/* 25G E */
+#define HBA_PORTSPEED_50GE		0x00100000	/* 50G E */
+#define HBA_PORTSPEED_400GE		0x00200000	/* 400G E */
 
 #define FOURBYTES	4
 
@@ -287,6 +298,17 @@ lpfc_ct_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocb)
 	return 0;
 }
 
+/**
+ * lpfc_gen_req - Build and issue a GEN_REQUEST command  to the SLI Layer
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @bmp: Pointer to BPL for SLI command
+ * @inp: Pointer to data buffer for response data.
+ * @outp: Pointer to data buffer that hold the CT command.
+ * @cmpl: completion routine to call when command completes
+ * @ndlp: Destination NPort nodelist entry
+ *
+ * This function as the final part for issuing a CT command.
+ */
 static int
 lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
 	     struct lpfc_dmabuf *inp, struct lpfc_dmabuf *outp,
@@ -311,7 +333,7 @@ lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
 	icmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
 	icmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
 	icmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
-	icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof (struct ulp_bde64));
+	icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof(struct ulp_bde64));
 
 	if (usr_flg)
 		geniocb->context3 = NULL;
@@ -370,6 +392,16 @@ lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
 	return 0;
 }
 
+/**
+ * lpfc_ct_cmd - Build and issue a CT command
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @inmp: Pointer to data buffer for response data.
+ * @bmp: Pointer to BPL for SLI command
+ * @ndlp: Destination NPort nodelist entry
+ * @cmpl: completion routine to call when command completes
+ *
+ * This function is called for issuing a CT command.
+ */
 static int
 lpfc_ct_cmd(struct lpfc_vport *vport, struct lpfc_dmabuf *inmp,
 	    struct lpfc_dmabuf *bmp, struct lpfc_nodelist *ndlp,
@@ -453,7 +485,7 @@ lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint32_t Size)
 			Cnt -= 16;	/* subtract length of CT header */
 
 		/* Loop through entire NameServer list of DIDs */
-		while (Cnt >= sizeof (uint32_t)) {
+		while (Cnt >= sizeof(uint32_t)) {
 			/* Get next DID from NameServer List */
 			CTentry = *ctptr++;
 			Did = ((be32_to_cpu(CTentry)) & Mask_DID);
@@ -558,7 +590,7 @@ lpfc_ns_rsp(struct lpfc_vport *vport, struct lpfc_dmabuf *mp, uint32_t Size)
 			}
 			if (CTentry & (cpu_to_be32(SLI_CT_LAST_ENTRY)))
 				goto nsout1;
-			Cnt -= sizeof (uint32_t);
+			Cnt -= sizeof(uint32_t);
 		}
 		ctptr = NULL;
 
@@ -1146,7 +1178,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 
 	/* fill in BDEs for command */
 	/* Allocate buffer for command payload */
-	mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 	if (!mp) {
 		rc=2;
 		goto ns_cmd_exit;
@@ -1160,7 +1192,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 	}
 
 	/* Allocate buffer for Buffer ptr list */
-	bmp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
+	bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 	if (!bmp) {
 		rc=4;
 		goto ns_cmd_free_mpvirt;
@@ -1204,7 +1236,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 	bpl->tus.w = le32_to_cpu(bpl->tus.w);
 
 	CtReq = (struct lpfc_sli_ct_request *) mp->virt;
-	memset(CtReq, 0, sizeof (struct lpfc_sli_ct_request));
+	memset(CtReq, 0, sizeof(struct lpfc_sli_ct_request));
 	CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
 	CtReq->RevisionId.bits.InId = 0;
 	CtReq->FsType = SLI_CT_DIRECTORY_SERVICE;
@@ -1244,7 +1276,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 		    cpu_to_be16(SLI_CTNS_RNN_ID);
 		CtReq->un.rnn.PortId = cpu_to_be32(vport->fc_myDID);
 		memcpy(CtReq->un.rnn.wwnn,  &vport->fc_nodename,
-		       sizeof (struct lpfc_name));
+		       sizeof(struct lpfc_name));
 		cmpl = lpfc_cmpl_ct_cmd_rnn_id;
 		break;
 
@@ -1264,7 +1296,7 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 		CtReq->CommandResponse.bits.CmdRsp =
 		    cpu_to_be16(SLI_CTNS_RSNN_NN);
 		memcpy(CtReq->un.rsnn.wwnn, &vport->fc_nodename,
-		       sizeof (struct lpfc_name));
+		       sizeof(struct lpfc_name));
 		size = sizeof(CtReq->un.rsnn.symbname);
 		CtReq->un.rsnn.len =
 			lpfc_vport_symbolic_node_name(vport,
@@ -1319,20 +1351,29 @@ ns_cmd_exit:
 	return 1;
 }
 
+/**
+ * lpfc_cmpl_ct_disc_fdmi - Handle a discovery FDMI completion
+ * @phba: Pointer to HBA context object.
+ * @cmdiocb: Pointer to the command IOCBQ.
+ * @rspiocb: Pointer to the response IOCBQ.
+ *
+ * This function to handle the completion of a driver initiated FDMI
+ * CT command issued during discovery.
+ */
 static void
-lpfc_cmpl_ct_cmd_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
-		      struct lpfc_iocbq * rspiocb)
+lpfc_cmpl_ct_disc_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
+		       struct lpfc_iocbq *rspiocb)
 {
+	struct lpfc_vport *vport = cmdiocb->vport;
 	struct lpfc_dmabuf *inp = cmdiocb->context1;
 	struct lpfc_dmabuf *outp = cmdiocb->context2;
-	struct lpfc_sli_ct_request *CTrsp = outp->virt;
 	struct lpfc_sli_ct_request *CTcmd = inp->virt;
-	struct lpfc_nodelist *ndlp;
+	struct lpfc_sli_ct_request *CTrsp = outp->virt;
 	uint16_t fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
 	uint16_t fdmi_rsp = CTrsp->CommandResponse.bits.CmdRsp;
-	struct lpfc_vport *vport = cmdiocb->vport;
 	IOCB_t *irsp = &rspiocb->iocb;
-	uint32_t latt;
+	struct lpfc_nodelist *ndlp;
+	uint32_t latt, cmd, err;
 
 	latt = lpfc_els_chk_latt(vport);
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
@@ -1340,91 +1381,1115 @@ lpfc_cmpl_ct_cmd_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		irsp->ulpStatus, irsp->un.ulpWord[4], latt);
 
 	if (latt || irsp->ulpStatus) {
+
+		/* Look for a retryable error */
+		if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
+			switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
+			case IOERR_SLI_ABORTED:
+			case IOERR_ABORT_IN_PROGRESS:
+			case IOERR_SEQUENCE_TIMEOUT:
+			case IOERR_ILLEGAL_FRAME:
+			case IOERR_NO_RESOURCES:
+			case IOERR_ILLEGAL_COMMAND:
+				cmdiocb->retry++;
+				if (cmdiocb->retry >= LPFC_FDMI_MAX_RETRY)
+					break;
+
+				/* Retry the same FDMI command */
+				err = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING,
+							  cmdiocb, 0);
+				if (err == IOCB_ERROR)
+					break;
+				return;
+			default:
+				break;
+			}
+		}
+
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
 				 "0229 FDMI cmd %04x failed, latt = %d "
 				 "ulpStatus: x%x, rid x%x\n",
 				 be16_to_cpu(fdmi_cmd), latt, irsp->ulpStatus,
 				 irsp->un.ulpWord[4]);
-		goto fail_out;
 	}
+	lpfc_ct_free_iocb(phba, cmdiocb);
 
 	ndlp = lpfc_findnode_did(vport, FDMI_DID);
 	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
-		goto fail_out;
+		return;
 
+	/* Check for a CT LS_RJT response */
+	cmd =  be16_to_cpu(fdmi_cmd);
 	if (fdmi_rsp == cpu_to_be16(SLI_CT_RESPONSE_FS_RJT)) {
 		/* FDMI rsp failed */
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
-				 "0220 FDMI rsp failed Data: x%x\n",
-				 be16_to_cpu(fdmi_cmd));
+				 "0220 FDMI cmd failed FS_RJT Data: x%x", cmd);
+
+		/* Should we fallback to FDMI-2 / FDMI-1 ? */
+		switch (cmd) {
+		case SLI_MGMT_RHBA:
+			if (vport->fdmi_hba_mask == LPFC_FDMI2_HBA_ATTR) {
+				/* Fallback to FDMI-1 */
+				vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;
+				vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
+				/* Start over */
+				lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
+			}
+			return;
+
+		case SLI_MGMT_RPRT:
+			if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
+				/* Fallback to FDMI-1 */
+				vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
+				/* Start over */
+				lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
+			}
+			if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
+				vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
+				/* Retry the same command */
+				lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
+			}
+			return;
+
+		case SLI_MGMT_RPA:
+			if (vport->fdmi_port_mask == LPFC_FDMI2_PORT_ATTR) {
+				/* Fallback to FDMI-1 */
+				vport->fdmi_hba_mask = LPFC_FDMI1_HBA_ATTR;
+				vport->fdmi_port_mask = LPFC_FDMI1_PORT_ATTR;
+				/* Start over */
+				lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
+			}
+			if (vport->fdmi_port_mask == LPFC_FDMI2_SMART_ATTR) {
+				vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
+				/* Retry the same command */
+				lpfc_fdmi_cmd(vport, ndlp, cmd, 0);
+			}
+			return;
+		}
 	}
 
-fail_out:
-	lpfc_ct_free_iocb(phba, cmdiocb);
+	/*
+	 * On success, need to cycle thru FDMI registration for discovery
+	 * DHBA -> DPRT -> RHBA -> RPA  (physical port)
+	 * DPRT -> RPRT (vports)
+	 */
+	switch (cmd) {
+	case SLI_MGMT_RHBA:
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA, 0);
+		break;
+
+	case SLI_MGMT_DHBA:
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
+		break;
+
+	case SLI_MGMT_DPRT:
+		if (vport->port_type == LPFC_PHYSICAL_PORT)
+			lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA, 0);
+		else
+			lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT, 0);
+		break;
+	}
+	return;
 }
 
-static void
-lpfc_cmpl_ct_disc_fdmi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
-		       struct lpfc_iocbq *rspiocb)
+
+/**
+ * lpfc_fdmi_num_disc_check - Check how many mapped NPorts we are connected to
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * Called from hbeat timeout routine to check if the number of discovered
+ * ports has changed. If so, re-register thar port Attribute.
+ */
+void
+lpfc_fdmi_num_disc_check(struct lpfc_vport *vport)
 {
-	struct lpfc_vport *vport = cmdiocb->vport;
-	struct lpfc_dmabuf *inp = cmdiocb->context1;
-	struct lpfc_sli_ct_request *CTcmd = inp->virt;
-	uint16_t fdmi_cmd = CTcmd->CommandResponse.bits.CmdRsp;
+	struct lpfc_hba *phba = vport->phba;
 	struct lpfc_nodelist *ndlp;
+	uint16_t cnt;
+
+	if (!lpfc_is_link_up(phba))
+		return;
+
+	if (!(vport->fdmi_port_mask & LPFC_FDMI_PORT_ATTR_num_disc))
+		return;
 
-	lpfc_cmpl_ct_cmd_fdmi(phba, cmdiocb, rspiocb);
+	cnt = lpfc_find_map_node(vport);
+	if (cnt == vport->fdmi_num_disc)
+		return;
 
 	ndlp = lpfc_findnode_did(vport, FDMI_DID);
 	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
 		return;
 
-	/*
-	 * Need to cycle thru FDMI registration for discovery
-	 * DHBA -> DPRT -> RHBA -> RPA
-	 */
-	switch (be16_to_cpu(fdmi_cmd)) {
-	case SLI_MGMT_RHBA:
-		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA);
-		break;
+	if (vport->port_type == LPFC_PHYSICAL_PORT) {
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPA,
+			      LPFC_FDMI_PORT_ATTR_num_disc);
+	} else {
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RPRT,
+			      LPFC_FDMI_PORT_ATTR_num_disc);
+	}
+}
 
-	case SLI_MGMT_DHBA:
-		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT);
-		break;
+/* Routines for all individual HBA attributes */
+int
+lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
 
-	case SLI_MGMT_DPRT:
-		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_RHBA);
-		break;
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, sizeof(struct lpfc_name));
+
+	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
+	       sizeof(struct lpfc_name));
+	size = FOURBYTES + sizeof(struct lpfc_name);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_NODENAME);
+	return size;
+}
+int
+lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport,
+				struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString,
+		"Emulex Corporation",
+		       sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_MANUFACTURER);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, phba->SerialNumber,
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_SERIAL_NUMBER);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport,
+			 struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, phba->ModelName,
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_MODEL);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, phba->ModelDesc,
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+				  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_MODEL_DESCRIPTION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport,
+			   struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	lpfc_vpd_t *vp = &phba->vpd;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t i, j, incr, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	/* Convert JEDEC ID to ascii for hardware version */
+	incr = vp->rev.biuRev;
+	for (i = 0; i < 8; i++) {
+		j = (incr & 0xf);
+		if (j <= 9)
+			ae->un.AttrString[7 - i] =
+			    (char)((uint8_t) 0x30 +
+				   (uint8_t) j);
+		else
+			ae->un.AttrString[7 - i] =
+			    (char)((uint8_t) 0x61 +
+				   (uint8_t) (j - 10));
+		incr = (incr >> 4);
 	}
+	size = FOURBYTES + 8;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_HARDWARE_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport,
+			    struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, lpfc_release_version,
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_DRIVER_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport,
+			   struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+	else
+		strncpy(ae->un.AttrString, phba->OptionROMVersion,
+			sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_OPTION_ROM_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport,
+			   struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_FIRMWARE_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport,
+			  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s %s %s",
+		 init_utsname()->sysname,
+		 init_utsname()->release,
+		 init_utsname()->version);
+
+	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_OS_NAME_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport,
+			  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	ae->un.AttrInt =  cpu_to_be32(LPFC_MAX_CT_SIZE);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_MAX_CT_PAYLOAD_LEN);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport,
+				 struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	len = lpfc_vport_symbolic_node_name(vport,
+				ae->un.AttrString, 256);
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_SYM_NODENAME);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	/* Nothing is defined for this currently */
+	ae->un.AttrInt =  cpu_to_be32(0);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_VENDOR_INFO);
+	return size;
 }
 
+int
+lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport,
+			     struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	/* Each driver instance corresponds to a single port */
+	ae->un.AttrInt =  cpu_to_be32(1);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_NUM_PORTS);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, sizeof(struct lpfc_name));
+
+	memcpy(&ae->un.AttrWWN, &vport->fabric_nodename,
+	       sizeof(struct lpfc_name));
+	size = FOURBYTES + sizeof(struct lpfc_name);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_FABRIC_WWNN);
+	return size;
+}
 
 int
-lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, int cmdcode)
+lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport,
+			    struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_BIOS_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport,
+			      struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	/* Driver doesn't have access to this information */
+	ae->un.AttrInt =  cpu_to_be32(0);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_BIOS_STATE);
+	return size;
+}
+
+int
+lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport,
+			     struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, "EMULEX",
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RHBA_VENDOR_ID);
+	return size;
+}
+
+/* Routines for all individual PORT attributes */
+int
+lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport,
+			    struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 32);
+
+	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
+	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
+	ae->un.AttrTypes[7] = 0x01; /* Type 32 - CT */
+	size = FOURBYTES + 32;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_FC4_TYPES);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
+				  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	ae->un.AttrInt = 0;
+	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+		if (phba->lmt & LMT_32Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_32GFC;
+		if (phba->lmt & LMT_16Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_16GFC;
+		if (phba->lmt & LMT_10Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_10GFC;
+		if (phba->lmt & LMT_8Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_8GFC;
+		if (phba->lmt & LMT_4Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_4GFC;
+		if (phba->lmt & LMT_2Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_2GFC;
+		if (phba->lmt & LMT_1Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_1GFC;
+	} else {
+		/* FCoE links support only one speed */
+		switch (phba->fc_linkspeed) {
+		case LPFC_ASYNC_LINK_SPEED_10GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_10GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_25GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_25GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_40GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_40GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_100GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_100GE;
+			break;
+		}
+	}
+	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_SPEED);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
+			  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+		switch (phba->fc_linkspeed) {
+		case LPFC_LINK_SPEED_1GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_1GFC;
+			break;
+		case LPFC_LINK_SPEED_2GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_2GFC;
+			break;
+		case LPFC_LINK_SPEED_4GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_4GFC;
+			break;
+		case LPFC_LINK_SPEED_8GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_8GFC;
+			break;
+		case LPFC_LINK_SPEED_10GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_10GFC;
+			break;
+		case LPFC_LINK_SPEED_16GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_16GFC;
+			break;
+		case LPFC_LINK_SPEED_32GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_32GFC;
+			break;
+		default:
+			ae->un.AttrInt = HBA_PORTSPEED_UNKNOWN;
+			break;
+		}
+	} else {
+		switch (phba->fc_linkspeed) {
+		case LPFC_ASYNC_LINK_SPEED_10GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_10GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_25GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_25GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_40GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_40GE;
+			break;
+		case LPFC_ASYNC_LINK_SPEED_100GBPS:
+			ae->un.AttrInt = HBA_PORTSPEED_100GE;
+			break;
+		default:
+			ae->un.AttrInt = HBA_PORTSPEED_UNKNOWN;
+			break;
+		}
+	}
+
+	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_PORT_SPEED);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport,
+			      struct lpfc_fdmi_attr_def *ad)
+{
+	struct serv_parm *hsp;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	hsp = (struct serv_parm *)&vport->fc_sparam;
+	ae->un.AttrInt = (((uint32_t) hsp->cmn.bbRcvSizeMsb) << 8) |
+			  (uint32_t) hsp->cmn.bbRcvSizeLsb;
+	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_MAX_FRAME_SIZE);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString),
+		 "/sys/class/scsi_host/host%d", shost->host_no);
+	len = strnlen((char *)ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_OS_DEVICE_NAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport,
+			      struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s",
+		 init_utsname()->nodename);
+
+	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_HOST_NAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport,
+			 struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0,  sizeof(struct lpfc_name));
+
+	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
+	       sizeof(struct lpfc_name));
+	size = FOURBYTES + sizeof(struct lpfc_name);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_NODENAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport,
+			 struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0,  sizeof(struct lpfc_name));
+
+	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.portName,
+	       sizeof(struct lpfc_name));
+	size = FOURBYTES + sizeof(struct lpfc_name);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_PORTNAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport,
+				  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	len = lpfc_vport_symbolic_port_name(vport, ae->un.AttrString, 256);
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SYM_PORTNAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport,
+			      struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP)
+		ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTTYPE_NLPORT);
+	else
+		ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTTYPE_NPORT);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_PORT_TYPE);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_class(struct lpfc_vport *vport,
+			  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	ae->un.AttrInt = cpu_to_be32(FC_COS_CLASS2 | FC_COS_CLASS3);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_CLASS);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport,
+				struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0,  sizeof(struct lpfc_name));
+
+	memcpy(&ae->un.AttrWWN, &vport->fabric_portname,
+	       sizeof(struct lpfc_name));
+	size = FOURBYTES + sizeof(struct lpfc_name);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_FABRICNAME);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport,
+				   struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 32);
+
+	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
+	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
+	ae->un.AttrTypes[7] = 0x01; /* Type 32 - CT */
+	size = FOURBYTES + 32;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_ACTIVE_FC4_TYPES);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	/* Link Up - operational */
+	ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTSTATE_ONLINE);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_PORT_STATE);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport,
+			     struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	vport->fdmi_num_disc = lpfc_find_map_node(vport);
+	ae->un.AttrInt = cpu_to_be32(vport->fdmi_num_disc);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_DISC_PORT);
+	return size;
+}
+
+int
+lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport,
+			    struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	ae->un.AttrInt =  cpu_to_be32(vport->fc_myDID);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_PORT_ID);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport,
+			     struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, "Smart SAN Initiator",
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_SERVICE);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport,
+			  struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	memcpy(&ae->un.AttrString, &vport->fc_sparam.nodeName,
+	       sizeof(struct lpfc_name));
+	memcpy((((uint8_t *)&ae->un.AttrString) +
+		sizeof(struct lpfc_name)),
+		&vport->fc_sparam.portName, sizeof(struct lpfc_name));
+	size = FOURBYTES + (2 * sizeof(struct lpfc_name));
+	ad->AttrLen =  cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_GUID);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport,
+			     struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, "Smart SAN Version 1.0",
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString,
+			  sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen =  cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_VERSION);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport,
+			   struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t len, size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	memset(ae, 0, 256);
+
+	strncpy(ae->un.AttrString, phba->ModelName,
+		sizeof(ae->un.AttrString));
+	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
+	len += (len & 3) ? (4 - (len & 3)) : 4;
+	size = FOURBYTES + len;
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_MODEL);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport,
+			       struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+
+	/* SRIOV (type 3) is not supported */
+	if (vport->vpi)
+		ae->un.AttrInt =  cpu_to_be32(2);  /* NPIV */
+	else
+		ae->un.AttrInt =  cpu_to_be32(1);  /* Physical */
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_PORT_INFO);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport,
+			 struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	ae->un.AttrInt =  cpu_to_be32(0);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_QOS);
+	return size;
+}
+
+int
+lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
+			      struct lpfc_fdmi_attr_def *ad)
+{
+	struct lpfc_fdmi_attr_entry *ae;
+	uint32_t size;
+
+	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
+	ae->un.AttrInt =  cpu_to_be32(0);
+	size = FOURBYTES + sizeof(uint32_t);
+	ad->AttrLen = cpu_to_be16(size);
+	ad->AttrType = cpu_to_be16(RPRT_SMART_SECURITY);
+	return size;
+}
+
+/* RHBA attribute jump table */
+int (*lpfc_fdmi_hba_action[])
+	(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad) = {
+	/* Action routine                 Mask bit     Attribute type */
+	lpfc_fdmi_hba_attr_wwnn,	  /* bit0     RHBA_NODENAME           */
+	lpfc_fdmi_hba_attr_manufacturer,  /* bit1     RHBA_MANUFACTURER       */
+	lpfc_fdmi_hba_attr_sn,		  /* bit2     RHBA_SERIAL_NUMBER      */
+	lpfc_fdmi_hba_attr_model,	  /* bit3     RHBA_MODEL              */
+	lpfc_fdmi_hba_attr_description,	  /* bit4     RHBA_MODEL_DESCRIPTION  */
+	lpfc_fdmi_hba_attr_hdw_ver,	  /* bit5     RHBA_HARDWARE_VERSION   */
+	lpfc_fdmi_hba_attr_drvr_ver,	  /* bit6     RHBA_DRIVER_VERSION     */
+	lpfc_fdmi_hba_attr_rom_ver,	  /* bit7     RHBA_OPTION_ROM_VERSION */
+	lpfc_fdmi_hba_attr_fmw_ver,	  /* bit8     RHBA_FIRMWARE_VERSION   */
+	lpfc_fdmi_hba_attr_os_ver,	  /* bit9     RHBA_OS_NAME_VERSION    */
+	lpfc_fdmi_hba_attr_ct_len,	  /* bit10    RHBA_MAX_CT_PAYLOAD_LEN */
+	lpfc_fdmi_hba_attr_symbolic_name, /* bit11    RHBA_SYM_NODENAME       */
+	lpfc_fdmi_hba_attr_vendor_info,	  /* bit12    RHBA_VENDOR_INFO        */
+	lpfc_fdmi_hba_attr_num_ports,	  /* bit13    RHBA_NUM_PORTS          */
+	lpfc_fdmi_hba_attr_fabric_wwnn,	  /* bit14    RHBA_FABRIC_WWNN        */
+	lpfc_fdmi_hba_attr_bios_ver,	  /* bit15    RHBA_BIOS_VERSION       */
+	lpfc_fdmi_hba_attr_bios_state,	  /* bit16    RHBA_BIOS_STATE         */
+	lpfc_fdmi_hba_attr_vendor_id,	  /* bit17    RHBA_VENDOR_ID          */
+};
+
+/* RPA / RPRT attribute jump table */
+int (*lpfc_fdmi_port_action[])
+	(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad) = {
+	/* Action routine                   Mask bit   Attribute type */
+	lpfc_fdmi_port_attr_fc4type,        /* bit0   RPRT_SUPPORT_FC4_TYPES  */
+	lpfc_fdmi_port_attr_support_speed,  /* bit1   RPRT_SUPPORTED_SPEED    */
+	lpfc_fdmi_port_attr_speed,          /* bit2   RPRT_PORT_SPEED         */
+	lpfc_fdmi_port_attr_max_frame,      /* bit3   RPRT_MAX_FRAME_SIZE     */
+	lpfc_fdmi_port_attr_os_devname,     /* bit4   RPRT_OS_DEVICE_NAME     */
+	lpfc_fdmi_port_attr_host_name,      /* bit5   RPRT_HOST_NAME          */
+	lpfc_fdmi_port_attr_wwnn,           /* bit6   RPRT_NODENAME           */
+	lpfc_fdmi_port_attr_wwpn,           /* bit7   RPRT_PORTNAME           */
+	lpfc_fdmi_port_attr_symbolic_name,  /* bit8   RPRT_SYM_PORTNAME       */
+	lpfc_fdmi_port_attr_port_type,      /* bit9   RPRT_PORT_TYPE          */
+	lpfc_fdmi_port_attr_class,          /* bit10  RPRT_SUPPORTED_CLASS    */
+	lpfc_fdmi_port_attr_fabric_wwpn,    /* bit11  RPRT_FABRICNAME         */
+	lpfc_fdmi_port_attr_active_fc4type, /* bit12  RPRT_ACTIVE_FC4_TYPES   */
+	lpfc_fdmi_port_attr_port_state,     /* bit13  RPRT_PORT_STATE         */
+	lpfc_fdmi_port_attr_num_disc,       /* bit14  RPRT_DISC_PORT          */
+	lpfc_fdmi_port_attr_nportid,        /* bit15  RPRT_PORT_ID            */
+	lpfc_fdmi_smart_attr_service,       /* bit16  RPRT_SMART_SERVICE      */
+	lpfc_fdmi_smart_attr_guid,          /* bit17  RPRT_SMART_GUID         */
+	lpfc_fdmi_smart_attr_version,       /* bit18  RPRT_SMART_VERSION      */
+	lpfc_fdmi_smart_attr_model,         /* bit19  RPRT_SMART_MODEL        */
+	lpfc_fdmi_smart_attr_port_info,     /* bit20  RPRT_SMART_PORT_INFO    */
+	lpfc_fdmi_smart_attr_qos,           /* bit21  RPRT_SMART_QOS          */
+	lpfc_fdmi_smart_attr_security,      /* bit22  RPRT_SMART_SECURITY     */
+};
+
+/**
+ * lpfc_fdmi_cmd - Build and send a FDMI cmd to the specified NPort
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @ndlp: ndlp to send FDMI cmd to (if NULL use FDMI_DID)
+ * cmdcode: FDMI command to send
+ * mask: Mask of HBA or PORT Attributes to send
+ *
+ * Builds and sends a FDMI command using the CT subsystem.
+ */
+int
+lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
+	      int cmdcode, uint32_t new_mask)
 {
 	struct lpfc_hba *phba = vport->phba;
 	struct lpfc_dmabuf *mp, *bmp;
 	struct lpfc_sli_ct_request *CtReq;
 	struct ulp_bde64 *bpl;
+	uint32_t bit_pos;
 	uint32_t size;
 	uint32_t rsp_size;
+	uint32_t mask;
 	struct lpfc_fdmi_reg_hba *rh;
 	struct lpfc_fdmi_port_entry *pe;
 	struct lpfc_fdmi_reg_portattr *pab = NULL;
 	struct lpfc_fdmi_attr_block *ab = NULL;
-	struct lpfc_fdmi_attr_entry *ae;
-	struct lpfc_fdmi_attr_def *ad;
-	void (*cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
-		      struct lpfc_iocbq *);
+	int  (*func)(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad);
+	void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
+		     struct lpfc_iocbq *);
 
-	if (ndlp == NULL) {
-		ndlp = lpfc_findnode_did(vport, FDMI_DID);
-		if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
-			return 0;
-		cmpl = lpfc_cmpl_ct_cmd_fdmi; /* cmd interface */
-	} else {
-		cmpl = lpfc_cmpl_ct_disc_fdmi; /* called from discovery */
-	}
+	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+		return 0;
+
+	cmpl = lpfc_cmpl_ct_disc_fdmi; /* called from discovery */
 
 	/* fill in BDEs for command */
 	/* Allocate buffer for command payload */
@@ -1470,573 +2535,99 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, int cmdcode)
 	switch (cmdcode) {
 	case SLI_MGMT_RHAT:
 	case SLI_MGMT_RHBA:
-		{
-			lpfc_vpd_t *vp = &phba->vpd;
-			uint32_t i, j, incr;
-			int len = 0;
+		rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un.PortID;
+		/* HBA Identifier */
+		memcpy(&rh->hi.PortName, &phba->pport->fc_sparam.portName,
+		       sizeof(struct lpfc_name));
 
-			rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un.PortID;
-			/* HBA Identifier */
-			memcpy(&rh->hi.PortName, &vport->fc_sparam.portName,
+		if (cmdcode == SLI_MGMT_RHBA) {
+			/* Registered Port List */
+			/* One entry (port) per adapter */
+			rh->rpl.EntryCnt = cpu_to_be32(1);
+			memcpy(&rh->rpl.pe, &phba->pport->fc_sparam.portName,
 			       sizeof(struct lpfc_name));
 
-			if (cmdcode == SLI_MGMT_RHBA) {
-				/* Registered Port List */
-				/* One entry (port) per adapter */
-				rh->rpl.EntryCnt = cpu_to_be32(1);
-				memcpy(&rh->rpl.pe, &vport->fc_sparam.portName,
-				       sizeof(struct lpfc_name));
-
-				/* point to the HBA attribute block */
-				size = 2 * sizeof(struct lpfc_name) +
-					FOURBYTES;
-			} else {
-				size = sizeof(struct lpfc_name);
-			}
-			ab = (struct lpfc_fdmi_attr_block *)
-				((uint8_t *)rh + size);
-			ab->EntryCnt = 0;
-			size += FOURBYTES;
-
-			/*
-			 * Point to beginning of first HBA attribute entry
-			 */
-			/* #1 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(struct lpfc_name));
-			ad->AttrType = cpu_to_be16(RHBA_NODENAME);
-			ad->AttrLen =  cpu_to_be16(FOURBYTES
-						+ sizeof(struct lpfc_name));
-			memcpy(&ae->un.NodeName, &vport->fc_sparam.nodeName,
-			       sizeof(struct lpfc_name));
-			ab->EntryCnt++;
-			size += FOURBYTES + sizeof(struct lpfc_name);
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #2 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.Manufacturer));
-			ad->AttrType = cpu_to_be16(RHBA_MANUFACTURER);
-			strncpy(ae->un.Manufacturer, "Emulex Corporation",
-				sizeof(ae->un.Manufacturer));
-			len = strnlen(ae->un.Manufacturer,
-					  sizeof(ae->un.Manufacturer));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #3 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.SerialNumber));
-			ad->AttrType = cpu_to_be16(RHBA_SERIAL_NUMBER);
-			strncpy(ae->un.SerialNumber, phba->SerialNumber,
-				sizeof(ae->un.SerialNumber));
-			len = strnlen(ae->un.SerialNumber,
-					  sizeof(ae->un.SerialNumber));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #4 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.Model));
-			ad->AttrType = cpu_to_be16(RHBA_MODEL);
-			strncpy(ae->un.Model, phba->ModelName,
-				sizeof(ae->un.Model));
-			len = strnlen(ae->un.Model, sizeof(ae->un.Model));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #5 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.ModelDescription));
-			ad->AttrType = cpu_to_be16(RHBA_MODEL_DESCRIPTION);
-			strncpy(ae->un.ModelDescription, phba->ModelDesc,
-				sizeof(ae->un.ModelDescription));
-			len = strnlen(ae->un.ModelDescription,
-					  sizeof(ae->un.ModelDescription));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + 8) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #6 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, 8);
-			ad->AttrType = cpu_to_be16(RHBA_HARDWARE_VERSION);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 8);
-			/* Convert JEDEC ID to ascii for hardware version */
-			incr = vp->rev.biuRev;
-			for (i = 0; i < 8; i++) {
-				j = (incr & 0xf);
-				if (j <= 9)
-					ae->un.HardwareVersion[7 - i] =
-					    (char)((uint8_t)0x30 +
-						   (uint8_t)j);
-				else
-					ae->un.HardwareVersion[7 - i] =
-					    (char)((uint8_t)0x61 +
-						   (uint8_t)(j - 10));
-				incr = (incr >> 4);
+			/* point to the HBA attribute block */
+			size = 2 * sizeof(struct lpfc_name) +
+				FOURBYTES;
+		} else {
+			size = sizeof(struct lpfc_name);
+		}
+		ab = (struct lpfc_fdmi_attr_block *)((uint8_t *)rh + size);
+		ab->EntryCnt = 0;
+		size += FOURBYTES;
+		bit_pos = 0;
+		if (new_mask)
+			mask = new_mask;
+		else
+			mask = vport->fdmi_hba_mask;
+
+		/* Mask will dictate what attributes to build in the request */
+		while (mask) {
+			if (mask & 0x1) {
+				func = lpfc_fdmi_hba_action[bit_pos];
+				size += func(vport,
+					     (struct lpfc_fdmi_attr_def *)
+					     ((uint8_t *)rh + size));
+				ab->EntryCnt++;
+				if ((size + 256) >
+				    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
+					goto hba_out;
 			}
-			ab->EntryCnt++;
-			size += FOURBYTES + 8;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #7 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.DriverVersion));
-			ad->AttrType = cpu_to_be16(RHBA_DRIVER_VERSION);
-			strncpy(ae->un.DriverVersion, lpfc_release_version,
-				sizeof(ae->un.DriverVersion));
-			len = strnlen(ae->un.DriverVersion,
-					sizeof(ae->un.DriverVersion));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #8 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.OptionROMVersion));
-			ad->AttrType = cpu_to_be16(RHBA_OPTION_ROM_VERSION);
-			strncpy(ae->un.OptionROMVersion, phba->OptionROMVersion,
-				sizeof(ae->un.OptionROMVersion));
-			len = strnlen(ae->un.OptionROMVersion,
-				      sizeof(ae->un.OptionROMVersion));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #9 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.FirmwareVersion));
-			ad->AttrType = cpu_to_be16(RHBA_FIRMWARE_VERSION);
-			lpfc_decode_firmware_rev(phba, ae->un.FirmwareVersion,
-				1);
-			len = strnlen(ae->un.FirmwareVersion,
-					sizeof(ae->un.FirmwareVersion));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #10 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.OsNameVersion));
-			ad->AttrType = cpu_to_be16(RHBA_OS_NAME_VERSION);
-			snprintf(ae->un.OsNameVersion,
-				 sizeof(ae->un.OsNameVersion),
-				 "%s %s %s",
-				 init_utsname()->sysname,
-				 init_utsname()->release,
-				 init_utsname()->version);
-			len = strnlen(ae->un.OsNameVersion,
-				      sizeof(ae->un.OsNameVersion));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/* #11 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType =
-				cpu_to_be16(RHBA_MAX_CT_PAYLOAD_LEN);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			ae->un.MaxCTPayloadLen = cpu_to_be32(LPFC_MAX_CT_SIZE);
-			ab->EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto hba_out;
-
-			/*
-			 * Currently switches don't seem to support the
-			 * following extended HBA attributes.
-			 */
-			if (!(vport->cfg_fdmi_on & LPFC_FDMI_ALL_ATTRIB))
-				goto hba_out;
-
-			/* #12 HBA attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)rh + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.NodeSymName));
-			ad->AttrType = cpu_to_be16(RHBA_SYM_NODENAME);
-			len = lpfc_vport_symbolic_node_name(vport,
-				ae->un.NodeSymName, sizeof(ae->un.NodeSymName));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			ab->EntryCnt++;
-			size += FOURBYTES + len;
-hba_out:
-			ab->EntryCnt = cpu_to_be32(ab->EntryCnt);
-			/* Total size */
-			size = GID_REQUEST_SZ - 4 + size;
+			mask = mask >> 1;
+			bit_pos++;
 		}
+hba_out:
+		ab->EntryCnt = cpu_to_be32(ab->EntryCnt);
+		/* Total size */
+		size = GID_REQUEST_SZ - 4 + size;
 		break;
 
 	case SLI_MGMT_RPRT:
 	case SLI_MGMT_RPA:
-		{
-			struct serv_parm *hsp;
-			int len = 0;
-
-			if (cmdcode == SLI_MGMT_RPRT) {
-				rh = (struct lpfc_fdmi_reg_hba *)
-					&CtReq->un.PortID;
-				/* HBA Identifier */
-				memcpy(&rh->hi.PortName,
-				       &vport->fc_sparam.portName,
-				       sizeof(struct lpfc_name));
-				pab = (struct lpfc_fdmi_reg_portattr *)
-					&rh->rpl.EntryCnt;
-			} else
-				pab = (struct lpfc_fdmi_reg_portattr *)
-					&CtReq->un.PortID;
-			size = sizeof(struct lpfc_name) + FOURBYTES;
-			memcpy((uint8_t *)&pab->PortName,
-			       (uint8_t *)&vport->fc_sparam.portName,
+		pab = (struct lpfc_fdmi_reg_portattr *)&CtReq->un.PortID;
+		if (cmdcode == SLI_MGMT_RPRT) {
+			rh = (struct lpfc_fdmi_reg_hba *)pab;
+			/* HBA Identifier */
+			memcpy(&rh->hi.PortName,
+			       &phba->pport->fc_sparam.portName,
 			       sizeof(struct lpfc_name));
-			pab->ab.EntryCnt = 0;
-
-			/* #1 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.FC4Types));
-			ad->AttrType =
-				cpu_to_be16(RPRT_SUPPORTED_FC4_TYPES);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 32);
-			ae->un.FC4Types[0] = 0x40; /* Type 1 - ELS */
-			ae->un.FC4Types[1] = 0x80; /* Type 8 - FCP */
-			ae->un.FC4Types[4] = 0x80; /* Type 32 - CT */
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 32;
-
-			/* #2 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_SPEED);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			ae->un.SupportSpeed = 0;
-			if (phba->lmt & LMT_32Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_32GBIT;
-			if (phba->lmt & LMT_16Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_16GBIT;
-			if (phba->lmt & LMT_10Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_10GBIT;
-			if (phba->lmt & LMT_8Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_8GBIT;
-			if (phba->lmt & LMT_4Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_4GBIT;
-			if (phba->lmt & LMT_2Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_2GBIT;
-			if (phba->lmt & LMT_1Gb)
-				ae->un.SupportSpeed |= HBA_PORTSPEED_1GBIT;
-			ae->un.SupportSpeed =
-				cpu_to_be32(ae->un.SupportSpeed);
-
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-
-			/* #3 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_PORT_SPEED);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			switch (phba->fc_linkspeed) {
-			case LPFC_LINK_SPEED_1GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_1GBIT;
-				break;
-			case LPFC_LINK_SPEED_2GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_2GBIT;
-				break;
-			case LPFC_LINK_SPEED_4GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_4GBIT;
-				break;
-			case LPFC_LINK_SPEED_8GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_8GBIT;
-				break;
-			case LPFC_LINK_SPEED_10GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_10GBIT;
-				break;
-			case LPFC_LINK_SPEED_16GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_16GBIT;
-				break;
-			case LPFC_LINK_SPEED_32GHZ:
-				ae->un.PortSpeed = HBA_PORTSPEED_32GBIT;
-				break;
-			default:
-				ae->un.PortSpeed = HBA_PORTSPEED_UNKNOWN;
-				break;
-			}
-			ae->un.PortSpeed = cpu_to_be32(ae->un.PortSpeed);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-
-			/* #4 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_MAX_FRAME_SIZE);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			hsp = (struct serv_parm *)&vport->fc_sparam;
-			ae->un.MaxFrameSize =
-			    (((uint32_t)hsp->cmn.
-			      bbRcvSizeMsb) << 8) | (uint32_t)hsp->cmn.
-			    bbRcvSizeLsb;
-			ae->un.MaxFrameSize =
-				cpu_to_be32(ae->un.MaxFrameSize);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #5 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.OsDeviceName));
-			ad->AttrType = cpu_to_be16(RPRT_OS_DEVICE_NAME);
-			strncpy((char *)ae->un.OsDeviceName, LPFC_DRIVER_NAME,
-				sizeof(ae->un.OsDeviceName));
-			len = strnlen((char *)ae->un.OsDeviceName,
-					  sizeof(ae->un.OsDeviceName));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #6 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.HostName));
-			snprintf(ae->un.HostName, sizeof(ae->un.HostName), "%s",
-				 init_utsname()->nodename);
-			ad->AttrType = cpu_to_be16(RPRT_HOST_NAME);
-			len = strnlen(ae->un.HostName,
-					sizeof(ae->un.HostName));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen =
-				cpu_to_be16(FOURBYTES + len);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + sizeof(struct lpfc_name)) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
+			pab = (struct lpfc_fdmi_reg_portattr *)
+				((uint8_t *)pab +  sizeof(struct lpfc_name));
+		}
 
-			/*
-			 * Currently switches don't seem to support the
-			 * following extended Port attributes.
-			 */
-			if (!(vport->cfg_fdmi_on & LPFC_FDMI_ALL_ATTRIB))
-				goto port_out;
-
-			/* #7 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0,  sizeof(struct lpfc_name));
-			ad->AttrType = cpu_to_be16(RPRT_NODENAME);
-			ad->AttrLen =  cpu_to_be16(FOURBYTES
-						+ sizeof(struct lpfc_name));
-			memcpy(&ae->un.NodeName, &vport->fc_sparam.nodeName,
-			       sizeof(struct lpfc_name));
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + sizeof(struct lpfc_name);
-			if ((size + sizeof(struct lpfc_name)) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #8 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0,  sizeof(struct lpfc_name));
-			ad->AttrType = cpu_to_be16(RPRT_PORTNAME);
-			ad->AttrLen =  cpu_to_be16(FOURBYTES
-						+ sizeof(struct lpfc_name));
-			memcpy(&ae->un.PortName, &vport->fc_sparam.portName,
-			       sizeof(struct lpfc_name));
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + sizeof(struct lpfc_name);
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #9 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.NodeSymName));
-			ad->AttrType = cpu_to_be16(RPRT_SYM_PORTNAME);
-			len = lpfc_vport_symbolic_port_name(vport,
-				ae->un.NodeSymName, sizeof(ae->un.NodeSymName));
-			len += (len & 3) ? (4 - (len & 3)) : 4;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + len);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + len;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #10 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_PORT_TYPE);
-			ae->un.PortState = 0;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #11 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_CLASS);
-			ae->un.SupportClass =
-				cpu_to_be32(FC_COS_CLASS2 | FC_COS_CLASS3);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + sizeof(struct lpfc_name)) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #12 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(struct lpfc_name));
-			ad->AttrType = cpu_to_be16(RPRT_FABRICNAME);
-			ad->AttrLen =  cpu_to_be16(FOURBYTES
-						+ sizeof(struct lpfc_name));
-			memcpy(&ae->un.FabricName, &vport->fabric_nodename,
-			       sizeof(struct lpfc_name));
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + sizeof(struct lpfc_name);
-			if ((size + LPFC_FDMI_MAX_AE_SIZE) >
-					(LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #13 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			memset(ae, 0, sizeof(ae->un.FC4Types));
-			ad->AttrType =
-				cpu_to_be16(RPRT_ACTIVE_FC4_TYPES);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 32);
-			ae->un.FC4Types[0] = 0x40; /* Type 1 - ELS */
-			ae->un.FC4Types[1] = 0x80; /* Type 8 - FCP */
-			ae->un.FC4Types[4] = 0x80; /* Type 32 - CT */
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 32;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #257 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_PORT_STATE);
-			ae->un.PortState = 0;
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #258 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_DISC_PORT);
-			ae->un.PortState = lpfc_find_map_node(vport);
-			ae->un.PortState = cpu_to_be32(ae->un.PortState);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-			if ((size + 4) > (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
-				goto port_out;
-
-			/* #259 Port attribute entry */
-			ad = (struct lpfc_fdmi_attr_def *)
-				((uint8_t *)pab + size);
-			ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-			ad->AttrType = cpu_to_be16(RPRT_PORT_ID);
-			ae->un.PortId =  cpu_to_be32(vport->fc_myDID);
-			ad->AttrLen = cpu_to_be16(FOURBYTES + 4);
-			pab->ab.EntryCnt++;
-			size += FOURBYTES + 4;
-port_out:
-			pab->ab.EntryCnt = cpu_to_be32(pab->ab.EntryCnt);
-			/* Total size */
-			size = GID_REQUEST_SZ - 4 + size;
+		memcpy((uint8_t *)&pab->PortName,
+		       (uint8_t *)&vport->fc_sparam.portName,
+		       sizeof(struct lpfc_name));
+		size += sizeof(struct lpfc_name) + FOURBYTES;
+		pab->ab.EntryCnt = 0;
+		bit_pos = 0;
+		if (new_mask)
+			mask = new_mask;
+		else
+			mask = vport->fdmi_port_mask;
+
+		/* Mask will dictate what attributes to build in the request */
+		while (mask) {
+			if (mask & 0x1) {
+				func = lpfc_fdmi_port_action[bit_pos];
+				size += func(vport,
+					     (struct lpfc_fdmi_attr_def *)
+					     ((uint8_t *)pab + size));
+				pab->ab.EntryCnt++;
+				if ((size + 256) >
+				    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
+					goto port_out;
+			}
+			mask = mask >> 1;
+			bit_pos++;
 		}
+port_out:
+		pab->ab.EntryCnt = cpu_to_be32(pab->ab.EntryCnt);
+		/* Total size */
+		if (cmdcode == SLI_MGMT_RPRT)
+			size += sizeof(struct lpfc_name);
+		size = GID_REQUEST_SZ - 4 + size;
 		break;
 
 	case SLI_MGMT_GHAT:
@@ -2158,41 +2749,6 @@ lpfc_delayed_disc_timeout_handler(struct lpfc_vport *vport)
 }
 
 void
-lpfc_fdmi_tmo(unsigned long ptr)
-{
-	struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
-	struct lpfc_hba   *phba = vport->phba;
-	uint32_t tmo_posted;
-	unsigned long iflag;
-
-	spin_lock_irqsave(&vport->work_port_lock, iflag);
-	tmo_posted = vport->work_port_events & WORKER_FDMI_TMO;
-	if (!tmo_posted)
-		vport->work_port_events |= WORKER_FDMI_TMO;
-	spin_unlock_irqrestore(&vport->work_port_lock, iflag);
-
-	if (!tmo_posted)
-		lpfc_worker_wake_up(phba);
-	return;
-}
-
-void
-lpfc_fdmi_timeout_handler(struct lpfc_vport *vport)
-{
-	struct lpfc_nodelist *ndlp;
-
-	ndlp = lpfc_findnode_did(vport, FDMI_DID);
-	if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
-		if (init_utsname()->nodename[0] != '\0')
-			lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
-		else
-			mod_timer(&vport->fc_fdmitmo, jiffies +
-				  msecs_to_jiffies(1000 * 60));
-	}
-	return;
-}
-
-void
 lpfc_decode_firmware_rev(struct lpfc_hba *phba, char *fwrevision, int flag)
 {
 	struct lpfc_sli *psli = &phba->sli;
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b6fa257ea3e0..7f5abb8f52bc 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -455,9 +455,9 @@ int
 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 {
 	struct lpfc_hba  *phba = vport->phba;
-	LPFC_MBOXQ_t *mboxq;
+	LPFC_MBOXQ_t *mboxq = NULL;
 	struct lpfc_nodelist *ndlp;
-	struct lpfc_dmabuf *dmabuf;
+	struct lpfc_dmabuf *dmabuf = NULL;
 	int rc = 0;
 
 	/* move forward in case of SLI4 FC port loopback test and pt2pt mode */
@@ -471,25 +471,33 @@ lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 		}
 	}
 
-	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
-	if (!dmabuf) {
+	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq) {
 		rc = -ENOMEM;
 		goto fail;
 	}
-	dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
-	if (!dmabuf->virt) {
-		rc = -ENOMEM;
-		goto fail_free_dmabuf;
-	}
 
-	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	if (!mboxq) {
-		rc = -ENOMEM;
-		goto fail_free_coherent;
+	/* Supply CSP's only if we are fabric connect or pt-to-pt connect */
+	if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
+		dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+		if (!dmabuf) {
+			rc = -ENOMEM;
+			goto fail;
+		}
+		dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
+		if (!dmabuf->virt) {
+			rc = -ENOMEM;
+			goto fail;
+		}
+		memcpy(dmabuf->virt, &phba->fc_fabparam,
+		       sizeof(struct serv_parm));
 	}
+
 	vport->port_state = LPFC_FABRIC_CFG_LINK;
-	memcpy(dmabuf->virt, &phba->fc_fabparam, sizeof(vport->fc_sparam));
-	lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
+	if (dmabuf)
+		lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
+	else
+		lpfc_reg_vfi(mboxq, vport, 0);
 
 	mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
 	mboxq->vport = vport;
@@ -497,17 +505,19 @@ lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
 	if (rc == MBX_NOT_FINISHED) {
 		rc = -ENXIO;
-		goto fail_free_mbox;
+		goto fail;
 	}
 	return 0;
 
-fail_free_mbox:
-	mempool_free(mboxq, phba->mbox_mem_pool);
-fail_free_coherent:
-	lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
-fail_free_dmabuf:
-	kfree(dmabuf);
 fail:
+	if (mboxq)
+		mempool_free(mboxq, phba->mbox_mem_pool);
+	if (dmabuf) {
+		if (dmabuf->virt)
+			lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+		kfree(dmabuf);
+	}
+
 	lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
 		"0289 Issue Register VFI failed: Err %d\n", rc);
@@ -678,6 +688,21 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 				sp->cmn.bbRcvSizeLsb;
 
 	fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+	if (fabric_param_changed) {
+		/* Reset FDMI attribute masks based on config parameter */
+		if (phba->cfg_fdmi_on == LPFC_FDMI_NO_SUPPORT) {
+			vport->fdmi_hba_mask = 0;
+			vport->fdmi_port_mask = 0;
+		} else {
+			/* Setup appropriate attribute masks */
+			vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
+			if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
+				vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
+			else
+				vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
+		}
+
+	}
 	memcpy(&vport->fabric_portname, &sp->portName,
 			sizeof(struct lpfc_name));
 	memcpy(&vport->fabric_nodename, &sp->nodeName,
@@ -711,9 +736,10 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	 * For FC we need to do some special processing because of the SLI
 	 * Port's default settings of the Common Service Parameters.
 	 */
-	if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) {
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+	    (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
 		/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
-		if ((phba->sli_rev == LPFC_SLI_REV4) && fabric_param_changed)
+		if (fabric_param_changed)
 			lpfc_unregister_fcf_prep(phba);
 
 		/* This should just update the VFI CSPs*/
@@ -824,13 +850,21 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 
 	spin_lock_irq(shost->host_lock);
 	vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+	vport->fc_flag |= FC_PT2PT;
 	spin_unlock_irq(shost->host_lock);
 
-	phba->fc_edtov = FF_DEF_EDTOV;
-	phba->fc_ratov = FF_DEF_RATOV;
+	/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
+	if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
+		lpfc_unregister_fcf_prep(phba);
+
+		spin_lock_irq(shost->host_lock);
+		vport->fc_flag &= ~FC_VFI_REGISTERED;
+		spin_unlock_irq(shost->host_lock);
+		phba->fc_topology_changed = 0;
+	}
+
 	rc = memcmp(&vport->fc_portname, &sp->portName,
 		    sizeof(vport->fc_portname));
-	memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 
 	if (rc >= 0) {
 		/* This side will initiate the PLOGI */
@@ -839,38 +873,14 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		spin_unlock_irq(shost->host_lock);
 
 		/*
-		 * N_Port ID cannot be 0, set our to LocalID the other
-		 * side will be RemoteID.
+		 * N_Port ID cannot be 0, set our Id to LocalID
+		 * the other side will be RemoteID.
 		 */
 
 		/* not equal */
 		if (rc)
 			vport->fc_myDID = PT2PT_LocalID;
 
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (!mbox)
-			goto fail;
-
-		lpfc_config_link(phba, mbox);
-
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto fail;
-		}
-
-		/*
-		 * For SLI4, the VFI/VPI are registered AFTER the
-		 * Nport with the higher WWPN sends the PLOGI with
-		 * an assigned NPortId.
-		 */
-
-		/* not equal */
-		if ((phba->sli_rev == LPFC_SLI_REV4) && rc)
-			lpfc_issue_reg_vfi(vport);
-
 		/* Decrement ndlp reference count indicating that ndlp can be
 		 * safely released when other references to it are done.
 		 */
@@ -912,29 +922,20 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	/* If we are pt2pt with another NPort, force NPIV off! */
 	phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
 
-	spin_lock_irq(shost->host_lock);
-	vport->fc_flag |= FC_PT2PT;
-	spin_unlock_irq(shost->host_lock);
-	/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
-	if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
-		lpfc_unregister_fcf_prep(phba);
+	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mbox)
+		goto fail;
 
-		/* The FC_VFI_REGISTERED flag will get clear in the cmpl
-		 * handler for unreg_vfi, but if we don't force the
-		 * FC_VFI_REGISTERED flag then the reg_vfi mailbox could be
-		 * built with the update bit set instead of just the vp bit to
-		 * change the Nport ID.  We need to have the vp set and the
-		 * Upd cleared on topology changes.
-		 */
-		spin_lock_irq(shost->host_lock);
-		vport->fc_flag &= ~FC_VFI_REGISTERED;
-		spin_unlock_irq(shost->host_lock);
-		phba->fc_topology_changed = 0;
-		lpfc_issue_reg_vfi(vport);
+	lpfc_config_link(phba, mbox);
+
+	mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
+	mbox->vport = vport;
+	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+	if (rc == MBX_NOT_FINISHED) {
+		mempool_free(mbox, phba->mbox_mem_pool);
+		goto fail;
 	}
 
-	/* Start discovery - this should just do CLEAR_LA */
-	lpfc_disc_start(vport);
 	return 0;
 fail:
 	return -ENXIO;
@@ -1157,6 +1158,7 @@ flogifail:
 	spin_lock_irq(&phba->hbalock);
 	phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
 	spin_unlock_irq(&phba->hbalock);
+
 	lpfc_nlp_put(ndlp);
 
 	if (!lpfc_error_lost_link(irsp)) {
@@ -3792,14 +3794,17 @@ lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 				lpfc_nlp_set_state(vport, ndlp,
 					   NLP_STE_REG_LOGIN_ISSUE);
 			}
+
+			ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
 			if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
 			    != MBX_NOT_FINISHED)
 				goto out;
-			else
-				/* Decrement the ndlp reference count we
-				 * set for this failed mailbox command.
-				 */
-				lpfc_nlp_put(ndlp);
+
+			/* Decrement the ndlp reference count we
+			 * set for this failed mailbox command.
+			 */
+			lpfc_nlp_put(ndlp);
+			ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
 
 			/* ELS rsp: Cannot issue reg_login for <NPortid> */
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
@@ -3856,6 +3861,7 @@ out:
 				 * the routine lpfc_els_free_iocb.
 				 */
 				cmdiocb->context1 = NULL;
+
 	}
 
 	lpfc_els_free_iocb(phba, cmdiocb);
@@ -3898,6 +3904,7 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
 	IOCB_t *oldcmd;
 	struct lpfc_iocbq *elsiocb;
 	uint8_t *pcmd;
+	struct serv_parm *sp;
 	uint16_t cmdsize;
 	int rc;
 	ELS_PKT *els_pkt_ptr;
@@ -3927,6 +3934,7 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
 			"Issue ACC:       did:x%x flg:x%x",
 			ndlp->nlp_DID, ndlp->nlp_flag, 0);
 		break;
+	case ELS_CMD_FLOGI:
 	case ELS_CMD_PLOGI:
 		cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
 		elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
@@ -3944,10 +3952,34 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
 
 		*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
 		pcmd += sizeof(uint32_t);
-		memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
+		sp = (struct serv_parm *)pcmd;
+
+		if (flag == ELS_CMD_FLOGI) {
+			/* Copy the received service parameters back */
+			memcpy(sp, &phba->fc_fabparam,
+			       sizeof(struct serv_parm));
+
+			/* Clear the F_Port bit */
+			sp->cmn.fPort = 0;
+
+			/* Mark all class service parameters as invalid */
+			sp->cls1.classValid = 0;
+			sp->cls2.classValid = 0;
+			sp->cls3.classValid = 0;
+			sp->cls4.classValid = 0;
+
+			/* Copy our worldwide names */
+			memcpy(&sp->portName, &vport->fc_sparam.portName,
+			       sizeof(struct lpfc_name));
+			memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
+			       sizeof(struct lpfc_name));
+		} else {
+			memcpy(pcmd, &vport->fc_sparam,
+			       sizeof(struct serv_parm));
+		}
 
 		lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
-			"Issue ACC PLOGI: did:x%x flg:x%x",
+			"Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
 			ndlp->nlp_DID, ndlp->nlp_flag, 0);
 		break;
 	case ELS_CMD_PRLO:
@@ -4673,6 +4705,23 @@ lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
 	desc->length = cpu_to_be32(sizeof(desc->info));
 }
 
+int
+lpfc_rdp_res_fec_desc(struct fc_fec_rdp_desc *desc, READ_LNK_VAR *stat)
+{
+	if (bf_get(lpfc_read_link_stat_gec2, stat) == 0)
+		return 0;
+	desc->tag = cpu_to_be32(RDP_FEC_DESC_TAG);
+
+	desc->info.CorrectedBlocks =
+		cpu_to_be32(stat->fecCorrBlkCount);
+	desc->info.UncorrectableBlocks =
+		cpu_to_be32(stat->fecUncorrBlkCount);
+
+	desc->length = cpu_to_be32(sizeof(desc->info));
+
+	return sizeof(struct fc_fec_rdp_desc);
+}
+
 void
 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
 {
@@ -4681,26 +4730,26 @@ lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
 
 	desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
 
-	switch (phba->sli4_hba.link_state.speed) {
-	case LPFC_FC_LA_SPEED_1G:
+	switch (phba->fc_linkspeed) {
+	case LPFC_LINK_SPEED_1GHZ:
 		rdp_speed = RDP_PS_1GB;
 		break;
-	case LPFC_FC_LA_SPEED_2G:
+	case LPFC_LINK_SPEED_2GHZ:
 		rdp_speed = RDP_PS_2GB;
 		break;
-	case LPFC_FC_LA_SPEED_4G:
+	case LPFC_LINK_SPEED_4GHZ:
 		rdp_speed = RDP_PS_4GB;
 		break;
-	case LPFC_FC_LA_SPEED_8G:
+	case LPFC_LINK_SPEED_8GHZ:
 		rdp_speed = RDP_PS_8GB;
 		break;
-	case LPFC_FC_LA_SPEED_10G:
+	case LPFC_LINK_SPEED_10GHZ:
 		rdp_speed = RDP_PS_10GB;
 		break;
-	case LPFC_FC_LA_SPEED_16G:
+	case LPFC_LINK_SPEED_16GHZ:
 		rdp_speed = RDP_PS_16GB;
 		break;
-	case LPFC_FC_LA_SPEED_32G:
+	case LPFC_LINK_SPEED_32GHZ:
 		rdp_speed = RDP_PS_32GB;
 		break;
 	default:
@@ -4778,15 +4827,18 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
 	struct lpfc_nodelist *ndlp = rdp_context->ndlp;
 	struct lpfc_vport *vport = ndlp->vport;
 	struct lpfc_iocbq *elsiocb;
+	struct ulp_bde64 *bpl;
 	IOCB_t *icmd;
 	uint8_t *pcmd;
 	struct ls_rjt *stat;
 	struct fc_rdp_res_frame *rdp_res;
 	uint32_t cmdsize;
-	int rc;
+	int rc, fec_size;
 
 	if (status != SUCCESS)
 		goto error;
+
+	/* This will change once we know the true size of the RDP payload */
 	cmdsize = sizeof(struct fc_rdp_res_frame);
 
 	elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
@@ -4823,10 +4875,18 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
 	lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
 	lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
 			vport, ndlp);
-	rdp_res->length = cpu_to_be32(RDP_DESC_PAYLOAD_SIZE);
-
+	fec_size = lpfc_rdp_res_fec_desc(&rdp_res->fec_desc,
+			&rdp_context->link_stat);
+	rdp_res->length = cpu_to_be32(fec_size + RDP_DESC_PAYLOAD_SIZE);
 	elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
 
+	/* Now that we know the true size of the payload, update the BPL */
+	bpl = (struct ulp_bde64 *)
+		(((struct lpfc_dmabuf *)(elsiocb->context3))->virt);
+	bpl->tus.f.bdeSize = (fec_size + RDP_DESC_PAYLOAD_SIZE + 8);
+	bpl->tus.f.bdeFlags = 0;
+	bpl->tus.w = le32_to_cpu(bpl->tus.w);
+
 	phba->fc_stat.elsXmitACC++;
 	rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
 	if (rc == IOCB_ERROR)
@@ -4956,13 +5016,12 @@ lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	if (RDP_NPORT_ID_SIZE !=
 			be32_to_cpu(rdp_req->nport_id_desc.length))
 		goto rjt_logerr;
-	rdp_context = kmalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
+	rdp_context = kzalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
 	if (!rdp_context) {
 		rjt_err = LSRJT_UNABLE_TPC;
 		goto error;
 	}
 
-	memset(rdp_context, 0, sizeof(struct lpfc_rdp_context));
 	cmd = &cmdiocb->iocb;
 	rdp_context->ndlp = lpfc_nlp_get(ndlp);
 	rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
@@ -5739,7 +5798,6 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	IOCB_t *icmd = &cmdiocb->iocb;
 	struct serv_parm *sp;
 	LPFC_MBOXQ_t *mbox;
-	struct ls_rjt stat;
 	uint32_t cmd, did;
 	int rc;
 	uint32_t fc_flag = 0;
@@ -5765,135 +5823,92 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 		return 1;
 	}
 
-	if ((lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1))) {
-		/* For a FLOGI we accept, then if our portname is greater
-		 * then the remote portname we initiate Nport login.
-		 */
+	(void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
 
-		rc = memcmp(&vport->fc_portname, &sp->portName,
-			    sizeof(struct lpfc_name));
 
-		if (!rc) {
-			if (phba->sli_rev < LPFC_SLI_REV4) {
-				mbox = mempool_alloc(phba->mbox_mem_pool,
-						     GFP_KERNEL);
-				if (!mbox)
-					return 1;
-				lpfc_linkdown(phba);
-				lpfc_init_link(phba, mbox,
-					       phba->cfg_topology,
-					       phba->cfg_link_speed);
-				mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
-				mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-				mbox->vport = vport;
-				rc = lpfc_sli_issue_mbox(phba, mbox,
-							 MBX_NOWAIT);
-				lpfc_set_loopback_flag(phba);
-				if (rc == MBX_NOT_FINISHED)
-					mempool_free(mbox, phba->mbox_mem_pool);
-				return 1;
-			} else {
-				/* abort the flogi coming back to ourselves
-				 * due to external loopback on the port.
-				 */
-				lpfc_els_abort_flogi(phba);
-				return 0;
-			}
-		} else if (rc > 0) {	/* greater than */
-			spin_lock_irq(shost->host_lock);
-			vport->fc_flag |= FC_PT2PT_PLOGI;
-			spin_unlock_irq(shost->host_lock);
+	/*
+	 * If our portname is greater than the remote portname,
+	 * then we initiate Nport login.
+	 */
 
-			/* If we have the high WWPN we can assign our own
-			 * myDID; otherwise, we have to WAIT for a PLOGI
-			 * from the remote NPort to find out what it
-			 * will be.
-			 */
-			vport->fc_myDID = PT2PT_LocalID;
-		} else
-			vport->fc_myDID = PT2PT_RemoteID;
+	rc = memcmp(&vport->fc_portname, &sp->portName,
+		    sizeof(struct lpfc_name));
 
-		/*
-		 * The vport state should go to LPFC_FLOGI only
-		 * AFTER we issue a FLOGI, not receive one.
+	if (!rc) {
+		if (phba->sli_rev < LPFC_SLI_REV4) {
+			mbox = mempool_alloc(phba->mbox_mem_pool,
+					     GFP_KERNEL);
+			if (!mbox)
+				return 1;
+			lpfc_linkdown(phba);
+			lpfc_init_link(phba, mbox,
+				       phba->cfg_topology,
+				       phba->cfg_link_speed);
+			mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox,
+						 MBX_NOWAIT);
+			lpfc_set_loopback_flag(phba);
+			if (rc == MBX_NOT_FINISHED)
+				mempool_free(mbox, phba->mbox_mem_pool);
+			return 1;
+		}
+
+		/* abort the flogi coming back to ourselves
+		 * due to external loopback on the port.
 		 */
+		lpfc_els_abort_flogi(phba);
+		return 0;
+
+	} else if (rc > 0) {	/* greater than */
 		spin_lock_irq(shost->host_lock);
-		fc_flag = vport->fc_flag;
-		port_state = vport->port_state;
-		vport->fc_flag |= FC_PT2PT;
-		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+		vport->fc_flag |= FC_PT2PT_PLOGI;
 		spin_unlock_irq(shost->host_lock);
-		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
-				 "3311 Rcv Flogi PS x%x new PS x%x "
-				 "fc_flag x%x new fc_flag x%x\n",
-				 port_state, vport->port_state,
-				 fc_flag, vport->fc_flag);
 
-		/*
-		 * We temporarily set fc_myDID to make it look like we are
-		 * a Fabric. This is done just so we end up with the right
-		 * did / sid on the FLOGI ACC rsp.
+		/* If we have the high WWPN we can assign our own
+		 * myDID; otherwise, we have to WAIT for a PLOGI
+		 * from the remote NPort to find out what it
+		 * will be.
 		 */
-		did = vport->fc_myDID;
-		vport->fc_myDID = Fabric_DID;
-
+		vport->fc_myDID = PT2PT_LocalID;
 	} else {
-		/* Reject this request because invalid parameters */
-		stat.un.b.lsRjtRsvd0 = 0;
-		stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
-		stat.un.b.lsRjtRsnCodeExp = LSEXP_SPARM_OPTIONS;
-		stat.un.b.vendorUnique = 0;
-
-		/*
-		 * We temporarily set fc_myDID to make it look like we are
-		 * a Fabric. This is done just so we end up with the right
-		 * did / sid on the FLOGI LS_RJT rsp.
-		 */
-		did = vport->fc_myDID;
-		vport->fc_myDID = Fabric_DID;
-
-		lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
-			NULL);
+		vport->fc_myDID = PT2PT_RemoteID;
+	}
 
-		/* Now lets put fc_myDID back to what its supposed to be */
-		vport->fc_myDID = did;
+	/*
+	 * The vport state should go to LPFC_FLOGI only
+	 * AFTER we issue a FLOGI, not receive one.
+	 */
+	spin_lock_irq(shost->host_lock);
+	fc_flag = vport->fc_flag;
+	port_state = vport->port_state;
+	vport->fc_flag |= FC_PT2PT;
+	vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+	spin_unlock_irq(shost->host_lock);
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+			 "3311 Rcv Flogi PS x%x new PS x%x "
+			 "fc_flag x%x new fc_flag x%x\n",
+			 port_state, vport->port_state,
+			 fc_flag, vport->fc_flag);
 
-		return 1;
-	}
+	/*
+	 * We temporarily set fc_myDID to make it look like we are
+	 * a Fabric. This is done just so we end up with the right
+	 * did / sid on the FLOGI ACC rsp.
+	 */
+	did = vport->fc_myDID;
+	vport->fc_myDID = Fabric_DID;
 
-	/* send our FLOGI first */
-	if (vport->port_state < LPFC_FLOGI) {
-		vport->fc_myDID = 0;
-		lpfc_initial_flogi(vport);
-		vport->fc_myDID = Fabric_DID;
-	}
+	memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 
 	/* Send back ACC */
-	lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
+	lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
 
 	/* Now lets put fc_myDID back to what its supposed to be */
 	vport->fc_myDID = did;
 
-	if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
-
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (!mbox)
-			goto fail;
-
-		lpfc_config_link(phba, mbox);
-
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto fail;
-		}
-	}
-
 	return 0;
-fail:
-	return 1;
 }
 
 /**
@@ -7345,7 +7360,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 
 	/* reject till our FLOGI completes */
 	if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
-		(cmd != ELS_CMD_FLOGI)) {
+	    (cmd != ELS_CMD_FLOGI)) {
 		rjt_err = LSRJT_UNABLE_TPC;
 		rjt_exp = LSEXP_NOTHING_MORE;
 		goto lsrjt;
@@ -7381,6 +7396,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			rjt_exp = LSEXP_NOTHING_MORE;
 			break;
 		}
+
 		if (vport->port_state < LPFC_DISC_AUTH) {
 			if (!(phba->pport->fc_flag & FC_PT2PT) ||
 				(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -7730,6 +7746,35 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	}
 }
 
+void
+lpfc_start_fdmi(struct lpfc_vport *vport)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_nodelist *ndlp;
+
+	/* If this is the first time, allocate an ndlp and initialize
+	 * it. Otherwise, make sure the node is enabled and then do the
+	 * login.
+	 */
+	ndlp = lpfc_findnode_did(vport, FDMI_DID);
+	if (!ndlp) {
+		ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
+		if (ndlp) {
+			lpfc_nlp_init(vport, ndlp, FDMI_DID);
+			ndlp->nlp_type |= NLP_FABRIC;
+		} else {
+			return;
+		}
+	}
+	if (!NLP_CHK_NODE_ACT(ndlp))
+		ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
+
+	if (ndlp) {
+		lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
+		lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
+	}
+}
+
 /**
  * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
  * @phba: pointer to lpfc hba data structure.
@@ -7746,7 +7791,7 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 void
 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
 {
-	struct lpfc_nodelist *ndlp, *ndlp_fdmi;
+	struct lpfc_nodelist *ndlp;
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 
 	/*
@@ -7804,32 +7849,9 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
 		return;
 	}
 
-	if (vport->cfg_fdmi_on & LPFC_FDMI_SUPPORT) {
-		/* If this is the first time, allocate an ndlp and initialize
-		 * it. Otherwise, make sure the node is enabled and then do the
-		 * login.
-		 */
-		ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID);
-		if (!ndlp_fdmi) {
-			ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
-						  GFP_KERNEL);
-			if (ndlp_fdmi) {
-				lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
-				ndlp_fdmi->nlp_type |= NLP_FABRIC;
-			} else
-				return;
-		}
-		if (!NLP_CHK_NODE_ACT(ndlp_fdmi))
-			ndlp_fdmi = lpfc_enable_node(vport,
-						     ndlp_fdmi,
-						     NLP_STE_NPR_NODE);
-
-		if (ndlp_fdmi) {
-			lpfc_nlp_set_state(vport, ndlp_fdmi,
-					   NLP_STE_PLOGI_ISSUE);
-			lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0);
-		}
-	}
+	if ((phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) &&
+	    (vport->load_flag & FC_ALLOW_FDMI))
+		lpfc_start_fdmi(vport);
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index bfc2442dd74a..c37d72effbff 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -674,8 +674,6 @@ lpfc_work_done(struct lpfc_hba *phba)
 				lpfc_mbox_timeout_handler(phba);
 			if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
 				lpfc_unblock_fabric_iocbs(phba);
-			if (work_port_events & WORKER_FDMI_TMO)
-				lpfc_fdmi_timeout_handler(vport);
 			if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
 				lpfc_ramp_down_queue_handler(phba);
 			if (work_port_events & WORKER_DELAYED_DISC_TMO)
@@ -1083,7 +1081,7 @@ out:
 }
 
 
-static void
+void
 lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
 	struct lpfc_vport *vport = pmb->vport;
@@ -1113,8 +1111,10 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	/* Start discovery by sending a FLOGI. port_state is identically
 	 * LPFC_FLOGI while waiting for FLOGI cmpl
 	 */
-	if (vport->port_state != LPFC_FLOGI || vport->fc_flag & FC_PT2PT_PLOGI)
+	if (vport->port_state != LPFC_FLOGI)
 		lpfc_initial_flogi(vport);
+	else if (vport->fc_flag & FC_PT2PT)
+		lpfc_disc_start(vport);
 	return;
 
 out:
@@ -2963,8 +2963,10 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 
 out_free_mem:
 	mempool_free(mboxq, phba->mbox_mem_pool);
-	lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
-	kfree(dmabuf);
+	if (dmabuf) {
+		lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+		kfree(dmabuf);
+	}
 	return;
 }
 
@@ -3035,19 +3037,22 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 	uint32_t fc_flags = 0;
 
 	spin_lock_irq(&phba->hbalock);
-	switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
-	case LPFC_LINK_SPEED_1GHZ:
-	case LPFC_LINK_SPEED_2GHZ:
-	case LPFC_LINK_SPEED_4GHZ:
-	case LPFC_LINK_SPEED_8GHZ:
-	case LPFC_LINK_SPEED_10GHZ:
-	case LPFC_LINK_SPEED_16GHZ:
-	case LPFC_LINK_SPEED_32GHZ:
-		phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
-		break;
-	default:
-		phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
-		break;
+	phba->fc_linkspeed = bf_get(lpfc_mbx_read_top_link_spd, la);
+
+	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+		switch (bf_get(lpfc_mbx_read_top_link_spd, la)) {
+		case LPFC_LINK_SPEED_1GHZ:
+		case LPFC_LINK_SPEED_2GHZ:
+		case LPFC_LINK_SPEED_4GHZ:
+		case LPFC_LINK_SPEED_8GHZ:
+		case LPFC_LINK_SPEED_10GHZ:
+		case LPFC_LINK_SPEED_16GHZ:
+		case LPFC_LINK_SPEED_32GHZ:
+			break;
+		default:
+			phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
+			break;
+		}
 	}
 
 	if (phba->fc_topology &&
@@ -3448,10 +3453,10 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 		spin_lock_irq(shost->host_lock);
 		ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
 		spin_unlock_irq(shost->host_lock);
-	} else
-		/* Good status, call state machine */
-		lpfc_disc_state_machine(vport, ndlp, pmb,
-				NLP_EVT_CMPL_REG_LOGIN);
+	}
+
+	/* Call state machine */
+	lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
 
 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 	kfree(mp);
@@ -5550,15 +5555,15 @@ lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 			 ndlp->nlp_usg_map, ndlp);
 	/*
 	 * Start issuing Fabric-Device Management Interface (FDMI) command to
-	 * 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
-	 * fdmi-on=2 (supporting RPA/hostnmae)
+	 * 0xfffffa (FDMI well known port).
+	 * DHBA -> DPRT -> RHBA -> RPA  (physical port)
+	 * DPRT -> RPRT (vports)
 	 */
-
-	if (vport->cfg_fdmi_on & LPFC_FDMI_REG_DELAY)
-		mod_timer(&vport->fc_fdmitmo,
-			  jiffies + msecs_to_jiffies(1000 * 60));
+	if (vport->port_type == LPFC_PHYSICAL_PORT)
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA, 0);
 	else
-		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
+		lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DPRT, 0);
+
 
 	/* decrement the node reference count held for this callback
 	 * function.
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 2cce88e967ce..dd20412c7e4c 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1097,6 +1097,18 @@ struct fc_rdp_port_name_desc {
 };
 
 
+struct fc_rdp_fec_info {
+	uint32_t CorrectedBlocks;
+	uint32_t UncorrectableBlocks;
+};
+
+#define RDP_FEC_DESC_TAG  0x00010005
+struct fc_fec_rdp_desc {
+	uint32_t tag;
+	uint32_t length;
+	struct fc_rdp_fec_info info;
+};
+
 struct fc_rdp_link_error_status_payload_info {
 	struct fc_link_status link_status; /* 24 bytes */
 	uint32_t  port_type;             /* bits 31-30 only */
@@ -1196,14 +1208,15 @@ struct fc_rdp_res_frame {
 	struct fc_rdp_link_error_status_desc link_error_desc; /* Word 13-21 */
 	struct fc_rdp_port_name_desc diag_port_names_desc;    /* Word 22-27 */
 	struct fc_rdp_port_name_desc attached_port_names_desc;/* Word 28-33 */
+	struct fc_fec_rdp_desc fec_desc;	      /* FC Word 34 - 37 */
 };
 
 
 #define RDP_DESC_PAYLOAD_SIZE (sizeof(struct fc_rdp_link_service_desc) \
-			+ sizeof(struct fc_rdp_sfp_desc) \
-			+ sizeof(struct fc_rdp_port_speed_desc) \
-			+ sizeof(struct fc_rdp_link_error_status_desc) \
-			+ (sizeof(struct fc_rdp_port_name_desc) * 2))
+				+ sizeof(struct fc_rdp_sfp_desc) \
+				+ sizeof(struct fc_rdp_port_speed_desc) \
+				+ sizeof(struct fc_rdp_link_error_status_desc) \
+				+ (sizeof(struct fc_rdp_port_name_desc) * 2))
 
 
 /******** FDMI ********/
@@ -1233,31 +1246,10 @@ struct lpfc_fdmi_attr_def { /* Defined in TLV format */
 /* Attribute Entry */
 struct lpfc_fdmi_attr_entry {
 	union {
-		uint32_t VendorSpecific;
-		uint32_t SupportClass;
-		uint32_t SupportSpeed;
-		uint32_t PortSpeed;
-		uint32_t MaxFrameSize;
-		uint32_t MaxCTPayloadLen;
-		uint32_t PortState;
-		uint32_t PortId;
-		struct lpfc_name NodeName;
-		struct lpfc_name PortName;
-		struct lpfc_name FabricName;
-		uint8_t FC4Types[32];
-		uint8_t Manufacturer[64];
-		uint8_t SerialNumber[64];
-		uint8_t Model[256];
-		uint8_t ModelDescription[256];
-		uint8_t HardwareVersion[256];
-		uint8_t DriverVersion[256];
-		uint8_t OptionROMVersion[256];
-		uint8_t FirmwareVersion[256];
-		uint8_t OsHostName[256];
-		uint8_t NodeSymName[256];
-		uint8_t OsDeviceName[256];
-		uint8_t OsNameVersion[256];
-		uint8_t HostName[256];
+		uint32_t AttrInt;
+		uint8_t  AttrTypes[32];
+		uint8_t  AttrString[256];
+		struct lpfc_name AttrWWN;
 	} un;
 };
 
@@ -1327,6 +1319,8 @@ struct lpfc_fdmi_reg_portattr {
 #define  SLI_MGMT_DPRT     0x310	/* De-register Port */
 #define  SLI_MGMT_DPA      0x311	/* De-register Port attributes */
 
+#define LPFC_FDMI_MAX_RETRY     3  /* Max retries for a FDMI command */
+
 /*
  * HBA Attribute Types
  */
@@ -1342,6 +1336,39 @@ struct lpfc_fdmi_reg_portattr {
 #define  RHBA_OS_NAME_VERSION	 0xa /* 4 to 256 byte ASCII string */
 #define  RHBA_MAX_CT_PAYLOAD_LEN 0xb /* 32-bit unsigned int */
 #define  RHBA_SYM_NODENAME       0xc /* 4 to 256 byte ASCII string */
+#define  RHBA_VENDOR_INFO        0xd  /* 32-bit unsigned int */
+#define  RHBA_NUM_PORTS          0xe  /* 32-bit unsigned int */
+#define  RHBA_FABRIC_WWNN        0xf  /* 8 byte WWNN */
+#define  RHBA_BIOS_VERSION       0x10 /* 4 to 256 byte ASCII string */
+#define  RHBA_BIOS_STATE         0x11 /* 32-bit unsigned int */
+#define  RHBA_VENDOR_ID          0xe0 /* 8 byte ASCII string */
+
+/* Bit mask for all individual HBA attributes */
+#define LPFC_FDMI_HBA_ATTR_wwnn			0x00000001
+#define LPFC_FDMI_HBA_ATTR_manufacturer		0x00000002
+#define LPFC_FDMI_HBA_ATTR_sn			0x00000004
+#define LPFC_FDMI_HBA_ATTR_model		0x00000008
+#define LPFC_FDMI_HBA_ATTR_description		0x00000010
+#define LPFC_FDMI_HBA_ATTR_hdw_ver		0x00000020
+#define LPFC_FDMI_HBA_ATTR_drvr_ver		0x00000040
+#define LPFC_FDMI_HBA_ATTR_rom_ver		0x00000080
+#define LPFC_FDMI_HBA_ATTR_fmw_ver		0x00000100
+#define LPFC_FDMI_HBA_ATTR_os_ver		0x00000200
+#define LPFC_FDMI_HBA_ATTR_ct_len		0x00000400
+#define LPFC_FDMI_HBA_ATTR_symbolic_name	0x00000800
+#define LPFC_FDMI_HBA_ATTR_vendor_info		0x00001000 /* Not used */
+#define LPFC_FDMI_HBA_ATTR_num_ports		0x00002000
+#define LPFC_FDMI_HBA_ATTR_fabric_wwnn		0x00004000
+#define LPFC_FDMI_HBA_ATTR_bios_ver		0x00008000
+#define LPFC_FDMI_HBA_ATTR_bios_state		0x00010000 /* Not used */
+#define LPFC_FDMI_HBA_ATTR_vendor_id		0x00020000
+
+/* Bit mask for FDMI-1 defined HBA attributes */
+#define LPFC_FDMI1_HBA_ATTR			0x000007ff
+
+/* Bit mask for FDMI-2 defined HBA attributes */
+/* Skip vendor_info and bios_state */
+#define LPFC_FDMI2_HBA_ATTR			0x0002efff
 
 /*
  * Port Attrubute Types
@@ -1353,15 +1380,65 @@ struct lpfc_fdmi_reg_portattr {
 #define  RPRT_OS_DEVICE_NAME          0x5 /* 4 to 256 byte ASCII string */
 #define  RPRT_HOST_NAME               0x6 /* 4 to 256 byte ASCII string */
 #define  RPRT_NODENAME                0x7 /* 8 byte WWNN */
-#define  RPRT_PORTNAME                0x8 /* 8 byte WWNN */
+#define  RPRT_PORTNAME                0x8 /* 8 byte WWPN */
 #define  RPRT_SYM_PORTNAME            0x9 /* 4 to 256 byte ASCII string */
 #define  RPRT_PORT_TYPE               0xa /* 32-bit unsigned int */
 #define  RPRT_SUPPORTED_CLASS         0xb /* 32-bit unsigned int */
-#define  RPRT_FABRICNAME              0xc /* 8 byte Fabric WWNN */
+#define  RPRT_FABRICNAME              0xc /* 8 byte Fabric WWPN */
 #define  RPRT_ACTIVE_FC4_TYPES        0xd /* 32 byte binary array */
 #define  RPRT_PORT_STATE              0x101 /* 32-bit unsigned int */
 #define  RPRT_DISC_PORT               0x102 /* 32-bit unsigned int */
 #define  RPRT_PORT_ID                 0x103 /* 32-bit unsigned int */
+#define  RPRT_SMART_SERVICE           0xf100 /* 4 to 256 byte ASCII string */
+#define  RPRT_SMART_GUID              0xf101 /* 8 byte WWNN + 8 byte WWPN */
+#define  RPRT_SMART_VERSION           0xf102 /* 4 to 256 byte ASCII string */
+#define  RPRT_SMART_MODEL             0xf103 /* 4 to 256 byte ASCII string */
+#define  RPRT_SMART_PORT_INFO         0xf104 /* 32-bit unsigned int */
+#define  RPRT_SMART_QOS               0xf105 /* 32-bit unsigned int */
+#define  RPRT_SMART_SECURITY          0xf106 /* 32-bit unsigned int */
+
+/* Bit mask for all individual PORT attributes */
+#define LPFC_FDMI_PORT_ATTR_fc4type		0x00000001
+#define LPFC_FDMI_PORT_ATTR_support_speed	0x00000002
+#define LPFC_FDMI_PORT_ATTR_speed		0x00000004
+#define LPFC_FDMI_PORT_ATTR_max_frame		0x00000008
+#define LPFC_FDMI_PORT_ATTR_os_devname		0x00000010
+#define LPFC_FDMI_PORT_ATTR_host_name		0x00000020
+#define LPFC_FDMI_PORT_ATTR_wwnn		0x00000040
+#define LPFC_FDMI_PORT_ATTR_wwpn		0x00000080
+#define LPFC_FDMI_PORT_ATTR_symbolic_name	0x00000100
+#define LPFC_FDMI_PORT_ATTR_port_type		0x00000200
+#define LPFC_FDMI_PORT_ATTR_class		0x00000400
+#define LPFC_FDMI_PORT_ATTR_fabric_wwpn		0x00000800
+#define LPFC_FDMI_PORT_ATTR_port_state		0x00001000
+#define LPFC_FDMI_PORT_ATTR_active_fc4type	0x00002000
+#define LPFC_FDMI_PORT_ATTR_num_disc		0x00004000
+#define LPFC_FDMI_PORT_ATTR_nportid		0x00008000
+#define LPFC_FDMI_SMART_ATTR_service		0x00010000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_guid		0x00020000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_version		0x00040000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_model		0x00080000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_port_info		0x00100000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_qos		0x00200000 /* Vendor specific */
+#define LPFC_FDMI_SMART_ATTR_security		0x00400000 /* Vendor specific */
+
+/* Bit mask for FDMI-1 defined PORT attributes */
+#define LPFC_FDMI1_PORT_ATTR			0x0000003f
+
+/* Bit mask for FDMI-2 defined PORT attributes */
+#define LPFC_FDMI2_PORT_ATTR			0x0000ffff
+
+/* Bit mask for Smart SAN defined PORT attributes */
+#define LPFC_FDMI2_SMART_ATTR			0x007fffff
+
+/* Defines for PORT port state attribute */
+#define LPFC_FDMI_PORTSTATE_UNKNOWN	1
+#define LPFC_FDMI_PORTSTATE_ONLINE	2
+
+/* Defines for PORT port type attribute */
+#define LPFC_FDMI_PORTTYPE_UNKNOWN	0
+#define LPFC_FDMI_PORTTYPE_NPORT	1
+#define LPFC_FDMI_PORTTYPE_NLPORT	2
 
 /*
  *  Begin HBA configuration parameters.
@@ -2498,10 +2575,38 @@ typedef struct {
 /* Structure for MB Command READ_LINK_STAT (18) */
 
 typedef struct {
-	uint32_t rsvd1;
+	uint32_t word0;
+
+#define lpfc_read_link_stat_rec_SHIFT   0
+#define lpfc_read_link_stat_rec_MASK   0x1
+#define lpfc_read_link_stat_rec_WORD   word0
+
+#define lpfc_read_link_stat_gec_SHIFT	1
+#define lpfc_read_link_stat_gec_MASK   0x1
+#define lpfc_read_link_stat_gec_WORD   word0
+
+#define lpfc_read_link_stat_w02oftow23of_SHIFT	2
+#define lpfc_read_link_stat_w02oftow23of_MASK   0x3FFFFF
+#define lpfc_read_link_stat_w02oftow23of_WORD   word0
+
+#define lpfc_read_link_stat_rsvd_SHIFT	24
+#define lpfc_read_link_stat_rsvd_MASK   0x1F
+#define lpfc_read_link_stat_rsvd_WORD   word0
+
+#define lpfc_read_link_stat_gec2_SHIFT  29
+#define lpfc_read_link_stat_gec2_MASK   0x1
+#define lpfc_read_link_stat_gec2_WORD   word0
+
+#define lpfc_read_link_stat_clrc_SHIFT  30
+#define lpfc_read_link_stat_clrc_MASK   0x1
+#define lpfc_read_link_stat_clrc_WORD   word0
+
+#define lpfc_read_link_stat_clof_SHIFT  31
+#define lpfc_read_link_stat_clof_MASK   0x1
+#define lpfc_read_link_stat_clof_WORD   word0
+
 	uint32_t linkFailureCnt;
 	uint32_t lossSyncCnt;
-
 	uint32_t lossSignalCnt;
 	uint32_t primSeqErrCnt;
 	uint32_t invalidXmitWord;
@@ -2509,6 +2614,19 @@ typedef struct {
 	uint32_t primSeqTimeout;
 	uint32_t elasticOverrun;
 	uint32_t arbTimeout;
+	uint32_t advRecBufCredit;
+	uint32_t curRecBufCredit;
+	uint32_t advTransBufCredit;
+	uint32_t curTransBufCredit;
+	uint32_t recEofCount;
+	uint32_t recEofdtiCount;
+	uint32_t recEofniCount;
+	uint32_t recSofcount;
+	uint32_t rsvd1;
+	uint32_t rsvd2;
+	uint32_t recDrpXriCount;
+	uint32_t fecCorrBlkCount;
+	uint32_t fecUncorrBlkCount;
 } READ_LNK_VAR;
 
 /* Structure for MB Command REG_LOGIN (19) */
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 33ec4fa39ccb..608f9415fb08 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -3317,6 +3317,7 @@ struct lpfc_acqe_link {
 #define LPFC_ASYNC_LINK_SPEED_20GBPS		0x5
 #define LPFC_ASYNC_LINK_SPEED_25GBPS		0x6
 #define LPFC_ASYNC_LINK_SPEED_40GBPS		0x7
+#define LPFC_ASYNC_LINK_SPEED_100GBPS		0x8
 #define lpfc_acqe_link_duplex_SHIFT		16
 #define lpfc_acqe_link_duplex_MASK		0x000000FF
 #define lpfc_acqe_link_duplex_WORD		word0
@@ -3447,23 +3448,50 @@ struct lpfc_acqe_fc_la {
 struct lpfc_acqe_misconfigured_event {
 	struct {
 	uint32_t word0;
-#define lpfc_sli_misconfigured_port0_SHIFT	0
-#define lpfc_sli_misconfigured_port0_MASK	0x000000FF
-#define lpfc_sli_misconfigured_port0_WORD	word0
-#define lpfc_sli_misconfigured_port1_SHIFT	8
-#define lpfc_sli_misconfigured_port1_MASK	0x000000FF
-#define lpfc_sli_misconfigured_port1_WORD	word0
-#define lpfc_sli_misconfigured_port2_SHIFT	16
-#define lpfc_sli_misconfigured_port2_MASK	0x000000FF
-#define lpfc_sli_misconfigured_port2_WORD	word0
-#define lpfc_sli_misconfigured_port3_SHIFT	24
-#define lpfc_sli_misconfigured_port3_MASK	0x000000FF
-#define lpfc_sli_misconfigured_port3_WORD	word0
+#define lpfc_sli_misconfigured_port0_state_SHIFT	0
+#define lpfc_sli_misconfigured_port0_state_MASK		0x000000FF
+#define lpfc_sli_misconfigured_port0_state_WORD		word0
+#define lpfc_sli_misconfigured_port1_state_SHIFT	8
+#define lpfc_sli_misconfigured_port1_state_MASK		0x000000FF
+#define lpfc_sli_misconfigured_port1_state_WORD		word0
+#define lpfc_sli_misconfigured_port2_state_SHIFT	16
+#define lpfc_sli_misconfigured_port2_state_MASK		0x000000FF
+#define lpfc_sli_misconfigured_port2_state_WORD		word0
+#define lpfc_sli_misconfigured_port3_state_SHIFT	24
+#define lpfc_sli_misconfigured_port3_state_MASK		0x000000FF
+#define lpfc_sli_misconfigured_port3_state_WORD		word0
+	uint32_t word1;
+#define lpfc_sli_misconfigured_port0_op_SHIFT		0
+#define lpfc_sli_misconfigured_port0_op_MASK		0x00000001
+#define lpfc_sli_misconfigured_port0_op_WORD		word1
+#define lpfc_sli_misconfigured_port0_severity_SHIFT	1
+#define lpfc_sli_misconfigured_port0_severity_MASK	0x00000003
+#define lpfc_sli_misconfigured_port0_severity_WORD	word1
+#define lpfc_sli_misconfigured_port1_op_SHIFT		8
+#define lpfc_sli_misconfigured_port1_op_MASK		0x00000001
+#define lpfc_sli_misconfigured_port1_op_WORD		word1
+#define lpfc_sli_misconfigured_port1_severity_SHIFT	9
+#define lpfc_sli_misconfigured_port1_severity_MASK	0x00000003
+#define lpfc_sli_misconfigured_port1_severity_WORD	word1
+#define lpfc_sli_misconfigured_port2_op_SHIFT		16
+#define lpfc_sli_misconfigured_port2_op_MASK		0x00000001
+#define lpfc_sli_misconfigured_port2_op_WORD		word1
+#define lpfc_sli_misconfigured_port2_severity_SHIFT	17
+#define lpfc_sli_misconfigured_port2_severity_MASK	0x00000003
+#define lpfc_sli_misconfigured_port2_severity_WORD	word1
+#define lpfc_sli_misconfigured_port3_op_SHIFT		24
+#define lpfc_sli_misconfigured_port3_op_MASK		0x00000001
+#define lpfc_sli_misconfigured_port3_op_WORD		word1
+#define lpfc_sli_misconfigured_port3_severity_SHIFT	25
+#define lpfc_sli_misconfigured_port3_severity_MASK	0x00000003
+#define lpfc_sli_misconfigured_port3_severity_WORD	word1
 	} theEvent;
 #define LPFC_SLI_EVENT_STATUS_VALID			0x00
 #define LPFC_SLI_EVENT_STATUS_NOT_PRESENT	0x01
 #define LPFC_SLI_EVENT_STATUS_WRONG_TYPE	0x02
 #define LPFC_SLI_EVENT_STATUS_UNSUPPORTED	0x03
+#define LPFC_SLI_EVENT_STATUS_UNQUALIFIED	0x04
+#define LPFC_SLI_EVENT_STATUS_UNCERTIFIED	0x05
 };
 
 struct lpfc_acqe_sli {
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index db9446c612da..a544366a367e 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1184,8 +1184,10 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 
 	vports = lpfc_create_vport_work_array(phba);
 	if (vports != NULL)
-		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
+		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
 			lpfc_rcv_seq_check_edtov(vports[i]);
+			lpfc_fdmi_num_disc_check(vports[i]);
+		}
 	lpfc_destroy_vport_work_array(phba, vports);
 
 	if ((phba->link_state == LPFC_HBA_ERROR) ||
@@ -1290,6 +1292,10 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 				jiffies +
 				msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
 		}
+	} else {
+			mod_timer(&phba->hb_tmofunc,
+				jiffies +
+				msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 	}
 }
 
@@ -2621,7 +2627,6 @@ void
 lpfc_stop_vport_timers(struct lpfc_vport *vport)
 {
 	del_timer_sync(&vport->els_tmofunc);
-	del_timer_sync(&vport->fc_fdmitmo);
 	del_timer_sync(&vport->delayed_disc_tmo);
 	lpfc_can_disctmo(vport);
 	return;
@@ -3340,10 +3345,6 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 	vport->fc_disctmo.function = lpfc_disc_timeout;
 	vport->fc_disctmo.data = (unsigned long)vport;
 
-	init_timer(&vport->fc_fdmitmo);
-	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
-	vport->fc_fdmitmo.data = (unsigned long)vport;
-
 	init_timer(&vport->els_tmofunc);
 	vport->els_tmofunc.function = lpfc_els_timeout;
 	vport->els_tmofunc.data = (unsigned long)vport;
@@ -3709,49 +3710,6 @@ lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
 }
 
 /**
- * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
- * @phba: pointer to lpfc hba data structure.
- * @acqe_link: pointer to the async link completion queue entry.
- *
- * This routine is to parse the SLI4 link-attention link speed and translate
- * it into the base driver's link-attention link speed coding.
- *
- * Return: Link-attention link speed in terms of base driver's coding.
- **/
-static uint8_t
-lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
-				struct lpfc_acqe_link *acqe_link)
-{
-	uint8_t link_speed;
-
-	switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
-	case LPFC_ASYNC_LINK_SPEED_ZERO:
-	case LPFC_ASYNC_LINK_SPEED_10MBPS:
-	case LPFC_ASYNC_LINK_SPEED_100MBPS:
-		link_speed = LPFC_LINK_SPEED_UNKNOWN;
-		break;
-	case LPFC_ASYNC_LINK_SPEED_1GBPS:
-		link_speed = LPFC_LINK_SPEED_1GHZ;
-		break;
-	case LPFC_ASYNC_LINK_SPEED_10GBPS:
-		link_speed = LPFC_LINK_SPEED_10GHZ;
-		break;
-	case LPFC_ASYNC_LINK_SPEED_20GBPS:
-	case LPFC_ASYNC_LINK_SPEED_25GBPS:
-	case LPFC_ASYNC_LINK_SPEED_40GBPS:
-		link_speed = LPFC_LINK_SPEED_UNKNOWN;
-		break;
-	default:
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0483 Invalid link-attention link speed: x%x\n",
-				bf_get(lpfc_acqe_link_speed, acqe_link));
-		link_speed = LPFC_LINK_SPEED_UNKNOWN;
-		break;
-	}
-	return link_speed;
-}
-
-/**
  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
  * @phba: pointer to lpfc hba data structure.
  *
@@ -3767,27 +3725,35 @@ lpfc_sli_port_speed_get(struct lpfc_hba *phba)
 	if (!lpfc_is_link_up(phba))
 		return 0;
 
-	switch (phba->fc_linkspeed) {
-	case LPFC_LINK_SPEED_1GHZ:
-		link_speed = 1000;
-		break;
-	case LPFC_LINK_SPEED_2GHZ:
-		link_speed = 2000;
-		break;
-	case LPFC_LINK_SPEED_4GHZ:
-		link_speed = 4000;
-		break;
-	case LPFC_LINK_SPEED_8GHZ:
-		link_speed = 8000;
-		break;
-	case LPFC_LINK_SPEED_10GHZ:
-		link_speed = 10000;
-		break;
-	case LPFC_LINK_SPEED_16GHZ:
-		link_speed = 16000;
-		break;
-	default:
-		link_speed = 0;
+	if (phba->sli_rev <= LPFC_SLI_REV3) {
+		switch (phba->fc_linkspeed) {
+		case LPFC_LINK_SPEED_1GHZ:
+			link_speed = 1000;
+			break;
+		case LPFC_LINK_SPEED_2GHZ:
+			link_speed = 2000;
+			break;
+		case LPFC_LINK_SPEED_4GHZ:
+			link_speed = 4000;
+			break;
+		case LPFC_LINK_SPEED_8GHZ:
+			link_speed = 8000;
+			break;
+		case LPFC_LINK_SPEED_10GHZ:
+			link_speed = 10000;
+			break;
+		case LPFC_LINK_SPEED_16GHZ:
+			link_speed = 16000;
+			break;
+		default:
+			link_speed = 0;
+		}
+	} else {
+		if (phba->sli4_hba.link_state.logical_speed)
+			link_speed =
+			      phba->sli4_hba.link_state.logical_speed;
+		else
+			link_speed = phba->sli4_hba.link_state.speed;
 	}
 	return link_speed;
 }
@@ -3983,7 +3949,7 @@ lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
 	la->eventTag = acqe_link->event_tag;
 	bf_set(lpfc_mbx_read_top_att_type, la, att_type);
 	bf_set(lpfc_mbx_read_top_link_spd, la,
-	       lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
+	       (bf_get(lpfc_acqe_link_speed, acqe_link)));
 
 	/* Fake the the following irrelvant fields */
 	bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
@@ -4113,22 +4079,18 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 	char message[128];
 	uint8_t status;
 	uint8_t evt_type;
+	uint8_t operational = 0;
 	struct temp_event temp_event_data;
 	struct lpfc_acqe_misconfigured_event *misconfigured;
 	struct Scsi_Host  *shost;
 
 	evt_type = bf_get(lpfc_trailer_type, acqe_sli);
 
-	/* Special case Lancer */
-	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
-		 LPFC_SLI_INTF_IF_TYPE_2) {
-		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
-				"2901 Async SLI event - Event Data1:x%08x Event Data2:"
-				"x%08x SLI Event Type:%d\n",
-				acqe_sli->event_data1, acqe_sli->event_data2,
-				evt_type);
-		return;
-	}
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"2901 Async SLI event - Event Data1:x%08x Event Data2:"
+			"x%08x SLI Event Type:%d\n",
+			acqe_sli->event_data1, acqe_sli->event_data2,
+			evt_type);
 
 	port_name = phba->Port[0];
 	if (port_name == 0x00)
@@ -4174,29 +4136,46 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 		/* fetch the status for this port */
 		switch (phba->sli4_hba.lnk_info.lnk_no) {
 		case LPFC_LINK_NUMBER_0:
-			status = bf_get(lpfc_sli_misconfigured_port0,
+			status = bf_get(lpfc_sli_misconfigured_port0_state,
+					&misconfigured->theEvent);
+			operational = bf_get(lpfc_sli_misconfigured_port0_op,
 					&misconfigured->theEvent);
 			break;
 		case LPFC_LINK_NUMBER_1:
-			status = bf_get(lpfc_sli_misconfigured_port1,
+			status = bf_get(lpfc_sli_misconfigured_port1_state,
+					&misconfigured->theEvent);
+			operational = bf_get(lpfc_sli_misconfigured_port1_op,
 					&misconfigured->theEvent);
 			break;
 		case LPFC_LINK_NUMBER_2:
-			status = bf_get(lpfc_sli_misconfigured_port2,
+			status = bf_get(lpfc_sli_misconfigured_port2_state,
+					&misconfigured->theEvent);
+			operational = bf_get(lpfc_sli_misconfigured_port2_op,
 					&misconfigured->theEvent);
 			break;
 		case LPFC_LINK_NUMBER_3:
-			status = bf_get(lpfc_sli_misconfigured_port3,
+			status = bf_get(lpfc_sli_misconfigured_port3_state,
+					&misconfigured->theEvent);
+			operational = bf_get(lpfc_sli_misconfigured_port3_op,
 					&misconfigured->theEvent);
 			break;
 		default:
-			status = ~LPFC_SLI_EVENT_STATUS_VALID;
-			break;
+			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+					"3296 "
+					"LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
+					"event: Invalid link %d",
+					phba->sli4_hba.lnk_info.lnk_no);
+			return;
 		}
 
+		/* Skip if optic state unchanged */
+		if (phba->sli4_hba.lnk_info.optic_state == status)
+			return;
+
 		switch (status) {
 		case LPFC_SLI_EVENT_STATUS_VALID:
-			return; /* no message if the sfp is okay */
+			sprintf(message, "Physical Link is functional");
+			break;
 		case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
 			sprintf(message, "Optics faulted/incorrectly "
 				"installed/not installed - Reseat optics, "
@@ -4211,15 +4190,26 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 			sprintf(message, "Incompatible optics - Replace with "
 				"compatible optics for card to function.");
 			break;
+		case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
+			sprintf(message, "Unqualified optics - Replace with "
+				"Avago optics for Warranty and Technical "
+				"Support - Link is%s operational",
+				(operational) ? "" : " not");
+			break;
+		case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
+			sprintf(message, "Uncertified optics - Replace with "
+				"Avago-certified optics to enable link "
+				"operation - Link is%s operational",
+				(operational) ? "" : " not");
+			break;
 		default:
 			/* firmware is reporting a status we don't know about */
 			sprintf(message, "Unknown event status x%02x", status);
 			break;
 		}
-
+		phba->sli4_hba.lnk_info.optic_state = status;
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"3176 Misconfigured Physical Port - "
-				"Port Name %c %s\n", port_name, message);
+				"3176 Port Name %c %s\n", port_name, message);
 		break;
 	case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
@@ -5293,6 +5283,9 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
 	INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
 
+	/* initialize optic_state to 0xFF */
+	phba->sli4_hba.lnk_info.optic_state = 0xff;
+
 	/* Initialize the driver internal SLI layer lists. */
 	lpfc_sli_setup(phba);
 	lpfc_sli_queue_setup(phba);
@@ -6159,6 +6152,20 @@ lpfc_create_shost(struct lpfc_hba *phba)
 	/* Put reference to SCSI host to driver's device private data */
 	pci_set_drvdata(phba->pcidev, shost);
 
+	/*
+	 * At this point we are fully registered with PSA. In addition,
+	 * any initial discovery should be completed.
+	 */
+	vport->load_flag |= FC_ALLOW_FDMI;
+	if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
+
+		/* Setup appropriate attribute masks */
+		vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
+		if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
+			vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
+		else
+			vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
+	}
 	return 0;
 }
 
@@ -8833,9 +8840,12 @@ found:
 				 * already mapped to this phys_id.
 				 */
 				if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
-					chann[saved_chann] =
-						cpup->channel_id;
-					saved_chann++;
+					if (saved_chann <=
+					    LPFC_FCP_IO_CHAN_MAX) {
+						chann[saved_chann] =
+							cpup->channel_id;
+						saved_chann++;
+					}
 					goto out;
 				}
 
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 3fa65338d3f5..4fb3581d4614 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -231,15 +231,13 @@ lpfc_mem_free(struct lpfc_hba *phba)
 	if (phba->lpfc_hbq_pool)
 		pci_pool_destroy(phba->lpfc_hbq_pool);
 	phba->lpfc_hbq_pool = NULL;
-
-	if (phba->rrq_pool)
-		mempool_destroy(phba->rrq_pool);
+	mempool_destroy(phba->rrq_pool);
 	phba->rrq_pool = NULL;
 
 	/* Free NLP memory pool */
 	mempool_destroy(phba->nlp_mem_pool);
 	phba->nlp_mem_pool = NULL;
-	if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) {
+	if (phba->sli_rev == LPFC_SLI_REV4) {
 		mempool_destroy(phba->active_rrq_pool);
 		phba->active_rrq_pool = NULL;
 	}
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index ed9a2c80c4aa..193733e8c823 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -280,38 +280,12 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	uint32_t *lp;
 	IOCB_t *icmd;
 	struct serv_parm *sp;
+	uint32_t ed_tov;
 	LPFC_MBOXQ_t *mbox;
 	struct ls_rjt stat;
 	int rc;
 
 	memset(&stat, 0, sizeof (struct ls_rjt));
-	if (vport->port_state <= LPFC_FDISC) {
-		/* Before responding to PLOGI, check for pt2pt mode.
-		 * If we are pt2pt, with an outstanding FLOGI, abort
-		 * the FLOGI and resend it first.
-		 */
-		if (vport->fc_flag & FC_PT2PT) {
-			 lpfc_els_abort_flogi(phba);
-		        if (!(vport->fc_flag & FC_PT2PT_PLOGI)) {
-				/* If the other side is supposed to initiate
-				 * the PLOGI anyway, just ACC it now and
-				 * move on with discovery.
-				 */
-				phba->fc_edtov = FF_DEF_EDTOV;
-				phba->fc_ratov = FF_DEF_RATOV;
-				/* Start discovery - this should just do
-				   CLEAR_LA */
-				lpfc_disc_start(vport);
-			} else
-				lpfc_initial_flogi(vport);
-		} else {
-			stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
-			stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
-			lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
-					    ndlp, NULL);
-			return 0;
-		}
-	}
 	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
 	lp = (uint32_t *) pcmd->virt;
 	sp = (struct serv_parm *) ((uint8_t *) lp + sizeof (uint32_t));
@@ -404,30 +378,46 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	/* Check for Nport to NPort pt2pt protocol */
 	if ((vport->fc_flag & FC_PT2PT) &&
 	    !(vport->fc_flag & FC_PT2PT_PLOGI)) {
-
 		/* rcv'ed PLOGI decides what our NPortId will be */
 		vport->fc_myDID = icmd->un.rcvels.parmRo;
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (mbox == NULL)
-			goto out;
-		lpfc_config_link(phba, mbox);
-		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		mbox->vport = vport;
-		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-		if (rc == MBX_NOT_FINISHED) {
-			mempool_free(mbox, phba->mbox_mem_pool);
-			goto out;
+
+		ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
+		if (sp->cmn.edtovResolution) {
+			/* E_D_TOV ticks are in nanoseconds */
+			ed_tov = (phba->fc_edtov + 999999) / 1000000;
 		}
+
 		/*
-		 * For SLI4, the VFI/VPI are registered AFTER the
-		 * Nport with the higher WWPN sends us a PLOGI with
-		 * our assigned NPortId.
+		 * For pt-to-pt, use the larger EDTOV
+		 * RATOV = 2 * EDTOV
 		 */
+		if (ed_tov > phba->fc_edtov)
+			phba->fc_edtov = ed_tov;
+		phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
+
+		memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
+
+		/* Issue config_link / reg_vfi to account for updated TOV's */
+
 		if (phba->sli_rev == LPFC_SLI_REV4)
 			lpfc_issue_reg_vfi(vport);
+		else {
+			mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+			if (mbox == NULL)
+				goto out;
+			lpfc_config_link(phba, mbox);
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+			if (rc == MBX_NOT_FINISHED) {
+				mempool_free(mbox, phba->mbox_mem_pool);
+				goto out;
+			}
+		}
 
 		lpfc_can_disctmo(vport);
 	}
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
 		goto out;
@@ -1038,7 +1028,9 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
 	uint32_t *lp;
 	IOCB_t *irsp;
 	struct serv_parm *sp;
+	uint32_t ed_tov;
 	LPFC_MBOXQ_t *mbox;
+	int rc;
 
 	cmdiocb = (struct lpfc_iocbq *) arg;
 	rspiocb = cmdiocb->context_un.rsp_iocb;
@@ -1094,18 +1086,63 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
 	ndlp->nlp_maxframe =
 		((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
 
+	if ((vport->fc_flag & FC_PT2PT) &&
+	    (vport->fc_flag & FC_PT2PT_PLOGI)) {
+		ed_tov = be32_to_cpu(sp->cmn.e_d_tov);
+		if (sp->cmn.edtovResolution) {
+			/* E_D_TOV ticks are in nanoseconds */
+			ed_tov = (phba->fc_edtov + 999999) / 1000000;
+		}
+
+		/*
+		 * Use the larger EDTOV
+		 * RATOV = 2 * EDTOV for pt-to-pt
+		 */
+		if (ed_tov > phba->fc_edtov)
+			phba->fc_edtov = ed_tov;
+		phba->fc_ratov = (2 * phba->fc_edtov) / 1000;
+
+		memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
+
+		/* Issue config_link / reg_vfi to account for updated TOV's */
+		if (phba->sli_rev == LPFC_SLI_REV4) {
+			lpfc_issue_reg_vfi(vport);
+		} else {
+			mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+			if (!mbox) {
+				lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+						 "0133 PLOGI: no memory "
+						 "for config_link "
+						 "Data: x%x x%x x%x x%x\n",
+						 ndlp->nlp_DID, ndlp->nlp_state,
+						 ndlp->nlp_flag, ndlp->nlp_rpi);
+				goto out;
+			}
+
+			lpfc_config_link(phba, mbox);
+
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+			if (rc == MBX_NOT_FINISHED) {
+				mempool_free(mbox, phba->mbox_mem_pool);
+				goto out;
+			}
+		}
+	}
+
+	lpfc_unreg_rpi(vport, ndlp);
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
-			"0133 PLOGI: no memory for reg_login "
-			"Data: x%x x%x x%x x%x\n",
-			ndlp->nlp_DID, ndlp->nlp_state,
-			ndlp->nlp_flag, ndlp->nlp_rpi);
+				 "0018 PLOGI: no memory for reg_login "
+				 "Data: x%x x%x x%x x%x\n",
+				 ndlp->nlp_DID, ndlp->nlp_state,
+				 ndlp->nlp_flag, ndlp->nlp_rpi);
 		goto out;
 	}
 
-	lpfc_unreg_rpi(vport, ndlp);
-
 	if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
 			 (uint8_t *) sp, mbox, ndlp->nlp_rpi) == 0) {
 		switch (ndlp->nlp_DID) {
@@ -2299,6 +2336,9 @@ lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
 		if (vport->phba->sli_rev < LPFC_SLI_REV4)
 			ndlp->nlp_rpi = mb->un.varWords[0];
 		ndlp->nlp_flag |= NLP_RPI_REGISTERED;
+		if (ndlp->nlp_flag & NLP_LOGO_ACC) {
+			lpfc_unreg_rpi(vport, ndlp);
+		}
 	} else {
 		if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
 			lpfc_drop_node(vport, ndlp);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 4679ed4444a7..152b3c8a5428 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3676,6 +3676,7 @@ static void
 lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 		    struct lpfc_iocbq *rsp_iocb)
 {
+	struct lpfc_hba *phba = vport->phba;
 	struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
 	struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd;
 	struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
@@ -3685,6 +3686,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	uint32_t *lp;
 	uint32_t host_status = DID_OK;
 	uint32_t rsplen = 0;
+	uint32_t fcpDl;
 	uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
 
 
@@ -3755,13 +3757,14 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 			 fcprsp->rspInfo3);
 
 	scsi_set_resid(cmnd, 0);
+	fcpDl = be32_to_cpu(fcpcmd->fcpDl);
 	if (resp_info & RESID_UNDER) {
 		scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId));
 
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER,
 				 "9025 FCP Read Underrun, expected %d, "
 				 "residual %d Data: x%x x%x x%x\n",
-				 be32_to_cpu(fcpcmd->fcpDl),
+				 fcpDl,
 				 scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0],
 				 cmnd->underflow);
 
@@ -3777,7 +3780,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 					 LOG_FCP | LOG_FCP_ERROR,
 					 "9026 FCP Read Check Error "
 					 "and Underrun Data: x%x x%x x%x x%x\n",
-					 be32_to_cpu(fcpcmd->fcpDl),
+					 fcpDl,
 					 scsi_get_resid(cmnd), fcpi_parm,
 					 cmnd->cmnd[0]);
 			scsi_set_resid(cmnd, scsi_bufflen(cmnd));
@@ -3812,13 +3815,25 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	 * Check SLI validation that all the transfer was actually done
 	 * (fcpi_parm should be zero). Apply check only to reads.
 	 */
-	} else if (fcpi_parm && (cmnd->sc_data_direction == DMA_FROM_DEVICE)) {
+	} else if (fcpi_parm) {
 		lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
-				 "9029 FCP Read Check Error Data: "
+				 "9029 FCP %s Check Error xri x%x  Data: "
 				 "x%x x%x x%x x%x x%x\n",
-				 be32_to_cpu(fcpcmd->fcpDl),
-				 be32_to_cpu(fcprsp->rspResId),
+				 ((cmnd->sc_data_direction == DMA_FROM_DEVICE) ?
+				 "Read" : "Write"),
+				 ((phba->sli_rev == LPFC_SLI_REV4) ?
+				 lpfc_cmd->cur_iocbq.sli4_xritag :
+				 rsp_iocb->iocb.ulpContext),
+				 fcpDl, be32_to_cpu(fcprsp->rspResId),
 				 fcpi_parm, cmnd->cmnd[0], scsi_status);
+
+		/* There is some issue with the LPe12000 that causes it
+		 * to miscalculate the fcpi_parm and falsely trip this
+		 * recovery logic.  Detect this case and don't error when true.
+		 */
+		if (fcpi_parm > fcpDl)
+			goto out;
+
 		switch (scsi_status) {
 		case SAM_STAT_GOOD:
 		case SAM_STAT_CHECK_CONDITION:
@@ -3908,9 +3923,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 	uint32_t logit = LOG_FCP;
 
 	/* Sanity check on return of outstanding command */
-	if (!(lpfc_cmd->pCmd))
-		return;
 	cmd = lpfc_cmd->pCmd;
+	if (!cmd)
+		return;
 	shost = cmd->device->host;
 
 	lpfc_cmd->result = (pIocbOut->iocb.un.ulpWord[4] & IOERR_PARAM_MASK);
@@ -4446,15 +4461,7 @@ lpfc_info(struct Scsi_Host *host)
 				 phba->Port);
 		}
 		len = strlen(lpfcinfobuf);
-		if (phba->sli_rev <= LPFC_SLI_REV3) {
-			link_speed = lpfc_sli_port_speed_get(phba);
-		} else {
-			if (phba->sli4_hba.link_state.logical_speed)
-				link_speed =
-				      phba->sli4_hba.link_state.logical_speed;
-			else
-				link_speed = phba->sli4_hba.link_state.speed;
-		}
+		link_speed = lpfc_sli_port_speed_get(phba);
 		if (link_speed != 0)
 			snprintf(lpfcinfobuf + len, 384-len,
 				 " Logical Link Speed: %d Mbps", link_speed);
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index f9585cdd8933..92dfd6a5178c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -14842,10 +14842,12 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
 	struct lpfc_dmabuf *h_buf;
 	struct hbq_dmabuf *seq_dmabuf = NULL;
 	struct hbq_dmabuf *temp_dmabuf = NULL;
+	uint8_t	found = 0;
 
 	INIT_LIST_HEAD(&dmabuf->dbuf.list);
 	dmabuf->time_stamp = jiffies;
 	new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
+
 	/* Use the hdr_buf to find the sequence that this frame belongs to */
 	list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
 		temp_hdr = (struct fc_frame_header *)h_buf->virt;
@@ -14885,7 +14887,8 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
 		return seq_dmabuf;
 	}
 	/* find the correct place in the sequence to insert this frame */
-	list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
+	d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
+	while (!found) {
 		temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
 		temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
 		/*
@@ -14895,9 +14898,17 @@ lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
 		if (be16_to_cpu(new_hdr->fh_seq_cnt) >
 			be16_to_cpu(temp_hdr->fh_seq_cnt)) {
 			list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
-			return seq_dmabuf;
+			found = 1;
+			break;
 		}
+
+		if (&d_buf->list == &seq_dmabuf->dbuf.list)
+			break;
+		d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
 	}
+
+	if (found)
+		return seq_dmabuf;
 	return NULL;
 }
 
@@ -16173,7 +16184,7 @@ fail_fcf_read:
 }
 
 /**
- * lpfc_check_next_fcf_pri
+ * lpfc_check_next_fcf_pri_level
  * phba pointer to the lpfc_hba struct for this port.
  * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
  * routine when the rr_bmask is empty. The FCF indecies are put into the
@@ -16329,8 +16340,12 @@ next_priority:
 
 	if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
 		phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
-		LPFC_FCF_FLOGI_FAILED)
+		LPFC_FCF_FLOGI_FAILED) {
+		if (list_is_singular(&phba->fcf.fcf_pri_list))
+			return LPFC_FCOE_FCF_NEXT_NONE;
+
 		goto next_priority;
+	}
 
 	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
 			"2845 Get next roundrobin failover FCF (x%x)\n",
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 1e916e16ce98..cd780c29495a 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -442,6 +442,7 @@ struct lpfc_sli4_lnk_info {
 #define LPFC_LNK_GE	0x0 /* FCoE */
 #define LPFC_LNK_FC	0x1 /* FC   */
 	uint8_t lnk_no;
+	uint8_t optic_state;
 };
 
 #define LPFC_SLI4_HANDLER_CNT		(LPFC_FCP_IO_CHAN_MAX+ \
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index ea53aa664759..4dc22562aaf1 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "11.0.0.0."
+#define LPFC_DRIVER_VERSION "11.0.0.10."
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index 769012663a8f..b3f85def18cc 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -393,6 +393,14 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
 	*(struct lpfc_vport **)fc_vport->dd_data = vport;
 	vport->fc_vport = fc_vport;
 
+	/* At this point we are fully registered with SCSI Layer.  */
+	vport->load_flag |= FC_ALLOW_FDMI;
+	if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
+		/* Setup appropriate attribute masks */
+		vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask;
+		vport->fdmi_port_mask = phba->pport->fdmi_port_mask;
+	}
+
 	/*
 	 * In SLI4, the vpi must be activated before it can be used
 	 * by the port.
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 11393ebf1a68..83658acddd58 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2020,8 +2020,10 @@ mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
 	_base_free_irq(ioc);
 	_base_disable_msix(ioc);
 
-	if (ioc->msix96_vector)
+	if (ioc->msix96_vector) {
 		kfree(ioc->replyPostRegisterIndex);
+		ioc->replyPostRegisterIndex = NULL;
+	}
 
 	if (ioc->chip_phys) {
 		iounmap(ioc->chip);
diff --git a/drivers/scsi/mvsas/mv_94xx.c b/drivers/scsi/mvsas/mv_94xx.c
index 9270d15ff1a4..f6fc4a705924 100644
--- a/drivers/scsi/mvsas/mv_94xx.c
+++ b/drivers/scsi/mvsas/mv_94xx.c
@@ -330,6 +330,51 @@ static void mvs_94xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
 	mvs_write_port_vsr_data(mvi, phy_id, tmp & 0xfd7fffff);
 }
 
+static void mvs_94xx_sgpio_init(struct mvs_info *mvi)
+{
+	void __iomem *regs = mvi->regs_ex - 0x10200;
+	u32 tmp;
+
+	tmp = mr32(MVS_HST_CHIP_CONFIG);
+	tmp |= 0x100;
+	mw32(MVS_HST_CHIP_CONFIG, tmp);
+
+	mw32(MVS_SGPIO_CTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		MVS_SGPIO_CTRL_SDOUT_AUTO << MVS_SGPIO_CTRL_SDOUT_SHIFT);
+
+	mw32(MVS_SGPIO_CFG1 + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		8 << MVS_SGPIO_CFG1_LOWA_SHIFT |
+		8 << MVS_SGPIO_CFG1_HIA_SHIFT |
+		4 << MVS_SGPIO_CFG1_LOWB_SHIFT |
+		4 << MVS_SGPIO_CFG1_HIB_SHIFT |
+		2 << MVS_SGPIO_CFG1_MAXACTON_SHIFT |
+		1 << MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT
+	);
+
+	mw32(MVS_SGPIO_CFG2 + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		(300000 / 100) << MVS_SGPIO_CFG2_CLK_SHIFT | /* 100kHz clock */
+		66 << MVS_SGPIO_CFG2_BLINK_SHIFT /* (66 * 0,121 Hz?)*/
+	);
+
+	mw32(MVS_SGPIO_CFG0 + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		MVS_SGPIO_CFG0_ENABLE |
+		MVS_SGPIO_CFG0_BLINKA |
+		MVS_SGPIO_CFG0_BLINKB |
+		/* 3*4 data bits / PDU */
+		(12 - 1) << MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT
+	);
+
+	mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		DEFAULT_SGPIO_BITS);
+
+	mw32(MVS_SGPIO_DSRC + MVS_SGPIO_HOST_OFFSET * mvi->id,
+		((mvi->id * 4) + 3) << (8 * 3) |
+		((mvi->id * 4) + 2) << (8 * 2) |
+		((mvi->id * 4) + 1) << (8 * 1) |
+		((mvi->id * 4) + 0) << (8 * 0));
+
+}
+
 static int mvs_94xx_init(struct mvs_info *mvi)
 {
 	void __iomem *regs = mvi->regs;
@@ -533,6 +578,8 @@ static int mvs_94xx_init(struct mvs_info *mvi)
 	/* Enable SRS interrupt */
 	mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
 
+	mvs_94xx_sgpio_init(mvi);
+
 	return 0;
 }
 
@@ -1005,6 +1052,92 @@ static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time)
 
 }
 
+static int mvs_94xx_gpio_write(struct mvs_prv_info *mvs_prv,
+			u8 reg_type, u8 reg_index,
+			u8 reg_count, u8 *write_data)
+{
+	int i;
+
+	switch (reg_type) {
+
+	case SAS_GPIO_REG_TX_GP:
+		if (reg_index == 0)
+			return -EINVAL;
+
+		if (reg_count > 1)
+			return -EINVAL;
+
+		if (reg_count == 0)
+			return 0;
+
+		/* maximum supported bits = hosts * 4 drives * 3 bits */
+		for (i = 0; i < mvs_prv->n_host * 4 * 3; i++) {
+
+			/* select host */
+			struct mvs_info *mvi = mvs_prv->mvi[i/(4*3)];
+
+			void __iomem *regs = mvi->regs_ex - 0x10200;
+
+			int drive = (i/3) & (4-1); /* drive number on host */
+			u32 block = mr32(MVS_SGPIO_DCTRL +
+				MVS_SGPIO_HOST_OFFSET * mvi->id);
+
+
+			/*
+			* if bit is set then create a mask with the first
+			* bit of the drive set in the mask ...
+			*/
+			u32 bit = (write_data[i/8] & (1 << (i&(8-1)))) ?
+				1<<(24-drive*8) : 0;
+
+			/*
+			* ... and then shift it to the right position based
+			* on the led type (activity/id/fail)
+			*/
+			switch (i%3) {
+			case 0: /* activity */
+				block &= ~((0x7 << MVS_SGPIO_DCTRL_ACT_SHIFT)
+					<< (24-drive*8));
+					/* hardwire activity bit to SOF */
+				block |= LED_BLINKA_SOF << (
+					MVS_SGPIO_DCTRL_ACT_SHIFT +
+					(24-drive*8));
+				break;
+			case 1: /* id */
+				block &= ~((0x3 << MVS_SGPIO_DCTRL_LOC_SHIFT)
+					<< (24-drive*8));
+				block |= bit << MVS_SGPIO_DCTRL_LOC_SHIFT;
+				break;
+			case 2: /* fail */
+				block &= ~((0x7 << MVS_SGPIO_DCTRL_ERR_SHIFT)
+					<< (24-drive*8));
+				block |= bit << MVS_SGPIO_DCTRL_ERR_SHIFT;
+				break;
+			}
+
+			mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
+				block);
+
+		}
+
+		return reg_count;
+
+	case SAS_GPIO_REG_TX:
+		if (reg_index + reg_count > mvs_prv->n_host)
+			return -EINVAL;
+
+		for (i = 0; i < reg_count; i++) {
+			struct mvs_info *mvi = mvs_prv->mvi[i+reg_index];
+			void __iomem *regs = mvi->regs_ex - 0x10200;
+
+			mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
+				be32_to_cpu(((u32 *) write_data)[i]));
+		}
+		return reg_count;
+	}
+	return -ENOSYS;
+}
+
 const struct mvs_dispatch mvs_94xx_dispatch = {
 	"mv94xx",
 	mvs_94xx_init,
@@ -1057,5 +1190,6 @@ const struct mvs_dispatch mvs_94xx_dispatch = {
 	mvs_94xx_fix_dma,
 	mvs_94xx_tune_interrupt,
 	mvs_94xx_non_spec_ncq_error,
+	mvs_94xx_gpio_write,
 };
 
diff --git a/drivers/scsi/mvsas/mv_94xx.h b/drivers/scsi/mvsas/mv_94xx.h
index 14e197497b46..578960803a00 100644
--- a/drivers/scsi/mvsas/mv_94xx.h
+++ b/drivers/scsi/mvsas/mv_94xx.h
@@ -38,6 +38,10 @@ enum VANIR_REVISION_ID {
 	VANIR_C2_REV		= 0xC2,
 };
 
+enum host_registers {
+	MVS_HST_CHIP_CONFIG	= 0x10104,	/* chip configuration */
+};
+
 enum hw_registers {
 	MVS_GBL_CTL		= 0x04,  /* global control */
 	MVS_GBL_INT_STAT	= 0x00,  /* global irq status */
@@ -239,6 +243,73 @@ struct mvs_prd {
 	__le32			im_len;
 } __attribute__ ((packed));
 
+enum sgpio_registers {
+	MVS_SGPIO_HOST_OFFSET	= 0x100,	/* offset between hosts */
+
+	MVS_SGPIO_CFG0	= 0xc200,
+	MVS_SGPIO_CFG0_ENABLE	= (1 << 0),	/* enable pins */
+	MVS_SGPIO_CFG0_BLINKB	= (1 << 1),	/* blink generators */
+	MVS_SGPIO_CFG0_BLINKA	= (1 << 2),
+	MVS_SGPIO_CFG0_INVSCLK	= (1 << 3),	/* invert signal? */
+	MVS_SGPIO_CFG0_INVSLOAD	= (1 << 4),
+	MVS_SGPIO_CFG0_INVSDOUT	= (1 << 5),
+	MVS_SGPIO_CFG0_SLOAD_FALLEDGE = (1 << 6),	/* rise/fall edge? */
+	MVS_SGPIO_CFG0_SDOUT_FALLEDGE = (1 << 7),
+	MVS_SGPIO_CFG0_SDIN_RISEEDGE = (1 << 8),
+	MVS_SGPIO_CFG0_MAN_BITLEN_SHIFT = 18,	/* bits/frame manual mode */
+	MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT = 24,	/* bits/frame auto mode */
+
+	MVS_SGPIO_CFG1	= 0xc204,	/* blink timing register */
+	MVS_SGPIO_CFG1_LOWA_SHIFT	= 0,	/* A off time */
+	MVS_SGPIO_CFG1_HIA_SHIFT	= 4,	/* A on time */
+	MVS_SGPIO_CFG1_LOWB_SHIFT	= 8,	/* B off time */
+	MVS_SGPIO_CFG1_HIB_SHIFT	= 12,	/* B on time */
+	MVS_SGPIO_CFG1_MAXACTON_SHIFT	= 16,	/* max activity on time */
+
+		/* force activity off time */
+	MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT	= 20,
+		/* stretch activity on time */
+	MVS_SGPIO_CFG1_STRCHACTON_SHIFT	= 24,
+		/* stretch activiity off time */
+	MVS_SGPIO_CFG1_STRCHACTOFF_SHIFT	= 28,
+
+
+	MVS_SGPIO_CFG2	= 0xc208,	/* clock speed register */
+	MVS_SGPIO_CFG2_CLK_SHIFT	= 0,
+	MVS_SGPIO_CFG2_BLINK_SHIFT	= 20,
+
+	MVS_SGPIO_CTRL	= 0xc20c,	/* SDOUT/SDIN mode control */
+	MVS_SGPIO_CTRL_SDOUT_AUTO	= 2,
+	MVS_SGPIO_CTRL_SDOUT_SHIFT	= 2,
+
+	MVS_SGPIO_DSRC	= 0xc220,	/* map ODn bits to drives */
+
+	MVS_SGPIO_DCTRL	= 0xc238,
+	MVS_SGPIO_DCTRL_ERR_SHIFT	= 0,
+	MVS_SGPIO_DCTRL_LOC_SHIFT	= 3,
+	MVS_SGPIO_DCTRL_ACT_SHIFT	= 5,
+};
+
+enum sgpio_led_status {
+	LED_OFF	= 0,
+	LED_ON	= 1,
+	LED_BLINKA	= 2,
+	LED_BLINKA_INV	= 3,
+	LED_BLINKA_SOF	= 4,
+	LED_BLINKA_EOF	= 5,
+	LED_BLINKB	= 6,
+	LED_BLINKB_INV	= 7,
+};
+
+#define DEFAULT_SGPIO_BITS ((LED_BLINKA_SOF << \
+				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 3) | \
+			(LED_BLINKA_SOF << \
+				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 2) | \
+			(LED_BLINKA_SOF << \
+				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 1) | \
+			(LED_BLINKA_SOF << \
+				MVS_SGPIO_DCTRL_ACT_SHIFT) << (8 * 0))
+
 /*
  * these registers are accessed through port vendor
  * specific address/data registers
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 675e7fab0796..c7c250519c4b 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -84,6 +84,8 @@ static struct sas_domain_function_template mvs_transport_ops = {
 	.lldd_port_formed	= mvs_port_formed,
 	.lldd_port_deformed     = mvs_port_deformed,
 
+	.lldd_write_gpio	= mvs_gpio_write,
+
 };
 
 static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 9c780740fb82..83cd3ea2df41 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -737,8 +737,8 @@ static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf
 			mv_dprintk("device %016llx not ready.\n",
 				SAS_ADDR(dev->sas_addr));
 
-			rc = SAS_PHY_DOWN;
-			return rc;
+		rc = SAS_PHY_DOWN;
+		return rc;
 	}
 	tei.port = dev->port->lldd_port;
 	if (tei.port && !tei.port->port_attached && !tmf) {
@@ -2105,3 +2105,16 @@ int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
 	return 0;
 }
 
+int mvs_gpio_write(struct sas_ha_struct *sha, u8 reg_type, u8 reg_index,
+			u8 reg_count, u8 *write_data)
+{
+	struct mvs_prv_info *mvs_prv = sha->lldd_ha;
+	struct mvs_info *mvi = mvs_prv->mvi[0];
+
+	if (MVS_CHIP_DISP->gpio_write) {
+		return MVS_CHIP_DISP->gpio_write(mvs_prv, reg_type,
+			reg_index, reg_count, write_data);
+	}
+
+	return -ENOSYS;
+}
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index dc409c04747a..f9afd4cdd4c4 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -103,6 +103,7 @@ enum dev_reset {
 };
 
 struct mvs_info;
+struct mvs_prv_info;
 
 struct mvs_dispatch {
 	char *name;
@@ -172,6 +173,8 @@ struct mvs_dispatch {
 				int buf_len, int from, void *prd);
 	void (*tune_interrupt)(struct mvs_info *mvi, u32 time);
 	void (*non_spec_ncq_error)(struct mvs_info *mvi);
+	int (*gpio_write)(struct mvs_prv_info *mvs_prv, u8 reg_type,
+			u8 reg_index, u8 reg_count, u8 *write_data);
 
 };
 
@@ -476,5 +479,7 @@ void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events);
 void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st);
 int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
 struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, u8 reg_set);
+int mvs_gpio_write(struct sas_ha_struct *, u8 reg_type, u8 reg_index,
+			u8 reg_count, u8 *write_data);
 #endif
 
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 0cccd6033feb..d8a2b5185f56 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -170,10 +170,7 @@ static int _osd_get_print_system_info(struct osd_dev *od,
 
 	/* FIXME: Where are the time utilities */
 	pFirst = get_attrs[a++].val_ptr;
-	OSD_INFO("CLOCK                  [0x%02x%02x%02x%02x%02x%02x]\n",
-		((char *)pFirst)[0], ((char *)pFirst)[1],
-		((char *)pFirst)[2], ((char *)pFirst)[3],
-		((char *)pFirst)[4], ((char *)pFirst)[5]);
+	OSD_INFO("CLOCK                  [0x%6phN]\n", pFirst);
 
 	if (a < nelem) { /* IBM-OSD-SIM bug, Might not have it */
 		unsigned len = get_attrs[a].len;
diff --git a/drivers/scsi/qla2xxx/Kconfig b/drivers/scsi/qla2xxx/Kconfig
index a0f732b138e4..10aa18ba05fd 100644
--- a/drivers/scsi/qla2xxx/Kconfig
+++ b/drivers/scsi/qla2xxx/Kconfig
@@ -18,9 +18,6 @@ config SCSI_QLA_FC
 	2322, 6322        ql2322_fw.bin
 	24xx, 54xx        ql2400_fw.bin
 	25xx              ql2500_fw.bin
-	2031              ql2600_fw.bin
-	8031              ql8300_fw.bin
-	27xx              ql2700_fw.bin
 
 	Upon request, the driver caches the firmware image until
 	the driver is unloaded.
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index bfa9a64c316b..6be32fdab365 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -5843,6 +5843,3 @@ MODULE_FIRMWARE(FW_FILE_ISP2300);
 MODULE_FIRMWARE(FW_FILE_ISP2322);
 MODULE_FIRMWARE(FW_FILE_ISP24XX);
 MODULE_FIRMWARE(FW_FILE_ISP25XX);
-MODULE_FIRMWARE(FW_FILE_ISP2031);
-MODULE_FIRMWARE(FW_FILE_ISP8031);
-MODULE_FIRMWARE(FW_FILE_ISP27XX);
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index d07fb653f5dc..b1bf42b93fcc 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -782,7 +782,7 @@ void scsi_attach_vpd(struct scsi_device *sdev)
 	int vpd_len = SCSI_VPD_PG_LEN;
 	int pg80_supported = 0;
 	int pg83_supported = 0;
-	unsigned char *vpd_buf;
+	unsigned char __rcu *vpd_buf, *orig_vpd_buf = NULL;
 
 	if (sdev->skip_vpd_pages)
 		return;
@@ -828,8 +828,16 @@ retry_pg80:
 			kfree(vpd_buf);
 			goto retry_pg80;
 		}
+		mutex_lock(&sdev->inquiry_mutex);
+		orig_vpd_buf = sdev->vpd_pg80;
 		sdev->vpd_pg80_len = result;
-		sdev->vpd_pg80 = vpd_buf;
+		rcu_assign_pointer(sdev->vpd_pg80, vpd_buf);
+		mutex_unlock(&sdev->inquiry_mutex);
+		synchronize_rcu();
+		if (orig_vpd_buf) {
+			kfree(orig_vpd_buf);
+			orig_vpd_buf = NULL;
+		}
 		vpd_len = SCSI_VPD_PG_LEN;
 	}
 
@@ -849,8 +857,14 @@ retry_pg83:
 			kfree(vpd_buf);
 			goto retry_pg83;
 		}
+		mutex_lock(&sdev->inquiry_mutex);
+		orig_vpd_buf = sdev->vpd_pg83;
 		sdev->vpd_pg83_len = result;
-		sdev->vpd_pg83 = vpd_buf;
+		rcu_assign_pointer(sdev->vpd_pg83, vpd_buf);
+		mutex_unlock(&sdev->inquiry_mutex);
+		synchronize_rcu();
+		if (orig_vpd_buf)
+			kfree(orig_vpd_buf);
 	}
 }
 
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index d09d60293c27..f3d69a98c725 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -129,7 +129,7 @@ static const char *scsi_debug_version_date = "20141022";
 #define DEF_NO_LUN_0   0
 #define DEF_NUM_PARTS   0
 #define DEF_OPTS   0
-#define DEF_OPT_BLKS 64
+#define DEF_OPT_BLKS 1024
 #define DEF_PHYSBLK_EXP 0
 #define DEF_PTYPE   0
 #define DEF_REMOVABLE false
@@ -679,7 +679,7 @@ static void *fake_store(unsigned long long lba)
 
 static struct sd_dif_tuple *dif_store(sector_t sector)
 {
-	sector = do_div(sector, sdebug_store_sectors);
+	sector = sector_div(sector, sdebug_store_sectors);
 
 	return dif_storep + sector;
 }
@@ -2781,7 +2781,7 @@ static unsigned long lba_to_map_index(sector_t lba)
 		lba += scsi_debug_unmap_granularity -
 			scsi_debug_unmap_alignment;
 	}
-	do_div(lba, scsi_debug_unmap_granularity);
+	sector_div(lba, scsi_debug_unmap_granularity);
 
 	return lba;
 }
@@ -4140,7 +4140,7 @@ MODULE_PARM_DESC(no_lun_0, "no LU number 0 (def=0 -> have lun 0)");
 MODULE_PARM_DESC(no_uld, "stop ULD (e.g. sd driver) attaching (def=0))");
 MODULE_PARM_DESC(num_parts, "number of partitions(def=0)");
 MODULE_PARM_DESC(num_tgts, "number of targets per host to simulate(def=1)");
-MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
+MODULE_PARM_DESC(opt_blks, "optimal transfer length in blocks (def=1024)");
 MODULE_PARM_DESC(opts, "1->noise, 2->medium_err, 4->timeout, 8->recovered_err... (def=0)");
 MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
 MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
@@ -4847,10 +4847,10 @@ static int __init scsi_debug_init(void)
 	/* play around with geometry, don't waste too much on track 0 */
 	sdebug_heads = 8;
 	sdebug_sectors_per = 32;
-	if (scsi_debug_dev_size_mb >= 16)
-		sdebug_heads = 32;
-	else if (scsi_debug_dev_size_mb >= 256)
+	if (scsi_debug_dev_size_mb >= 256)
 		sdebug_heads = 64;
+	else if (scsi_debug_dev_size_mb >= 16)
+		sdebug_heads = 32;
 	sdebug_cylinders_per = (unsigned long)sdebug_capacity /
 			       (sdebug_sectors_per * sdebug_heads);
 	if (sdebug_cylinders_per >= 1024) {
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
index e7649ed3f667..54d446c9f56e 100644
--- a/drivers/scsi/scsi_dh.c
+++ b/drivers/scsi/scsi_dh.c
@@ -153,76 +153,11 @@ static void scsi_dh_handler_detach(struct scsi_device *sdev)
 	module_put(sdev->handler->module);
 }
 
-/*
- * Functions for sysfs attribute 'dh_state'
- */
-static ssize_t
-store_dh_state(struct device *dev, struct device_attribute *attr,
-	       const char *buf, size_t count)
-{
-	struct scsi_device *sdev = to_scsi_device(dev);
-	struct scsi_device_handler *scsi_dh;
-	int err = -EINVAL;
-
-	if (sdev->sdev_state == SDEV_CANCEL ||
-	    sdev->sdev_state == SDEV_DEL)
-		return -ENODEV;
-
-	if (!sdev->handler) {
-		/*
-		 * Attach to a device handler
-		 */
-		scsi_dh = scsi_dh_lookup(buf);
-		if (!scsi_dh)
-			return err;
-		err = scsi_dh_handler_attach(sdev, scsi_dh);
-	} else {
-		if (!strncmp(buf, "detach", 6)) {
-			/*
-			 * Detach from a device handler
-			 */
-			sdev_printk(KERN_WARNING, sdev,
-				    "can't detach handler %s.\n",
-				    sdev->handler->name);
-			err = -EINVAL;
-		} else if (!strncmp(buf, "activate", 8)) {
-			/*
-			 * Activate a device handler
-			 */
-			if (sdev->handler->activate)
-				err = sdev->handler->activate(sdev, NULL, NULL);
-			else
-				err = 0;
-		}
-	}
-
-	return err<0?err:count;
-}
-
-static ssize_t
-show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct scsi_device *sdev = to_scsi_device(dev);
-
-	if (!sdev->handler)
-		return snprintf(buf, 20, "detached\n");
-
-	return snprintf(buf, 20, "%s\n", sdev->handler->name);
-}
-
-static struct device_attribute scsi_dh_state_attr =
-	__ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
-	       store_dh_state);
-
 int scsi_dh_add_device(struct scsi_device *sdev)
 {
 	struct scsi_device_handler *devinfo = NULL;
 	const char *drv;
-	int err;
-
-	err = device_create_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
-	if (err)
-		return err;
+	int err = 0;
 
 	drv = scsi_dh_find_driver(sdev);
 	if (drv)
@@ -238,11 +173,6 @@ void scsi_dh_release_device(struct scsi_device *sdev)
 		scsi_dh_handler_detach(sdev);
 }
 
-void scsi_dh_remove_device(struct scsi_device *sdev)
-{
-	device_remove_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
-}
-
 /*
  * scsi_register_device_handler - register a device handler personality
  *      module.
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index dd8ad2a44510..fa6b2c4eb7a2 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -23,6 +23,7 @@
 #include <linux/scatterlist.h>
 #include <linux/blk-mq.h>
 #include <linux/ratelimit.h>
+#include <asm/unaligned.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -3154,3 +3155,190 @@ void sdev_enable_disk_events(struct scsi_device *sdev)
 	atomic_dec(&sdev->disk_events_disable_depth);
 }
 EXPORT_SYMBOL(sdev_enable_disk_events);
+
+/**
+ * scsi_vpd_lun_id - return a unique device identification
+ * @sdev: SCSI device
+ * @id:   buffer for the identification
+ * @id_len:  length of the buffer
+ *
+ * Copies a unique device identification into @id based
+ * on the information in the VPD page 0x83 of the device.
+ * The string will be formatted as a SCSI name string.
+ *
+ * Returns the length of the identification or error on failure.
+ * If the identifier is longer than the supplied buffer the actual
+ * identifier length is returned and the buffer is not zero-padded.
+ */
+int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
+{
+	u8 cur_id_type = 0xff;
+	u8 cur_id_size = 0;
+	unsigned char *d, *cur_id_str;
+	unsigned char __rcu *vpd_pg83;
+	int id_size = -EINVAL;
+
+	rcu_read_lock();
+	vpd_pg83 = rcu_dereference(sdev->vpd_pg83);
+	if (!vpd_pg83) {
+		rcu_read_unlock();
+		return -ENXIO;
+	}
+
+	/*
+	 * Look for the correct descriptor.
+	 * Order of preference for lun descriptor:
+	 * - SCSI name string
+	 * - NAA IEEE Registered Extended
+	 * - EUI-64 based 16-byte
+	 * - EUI-64 based 12-byte
+	 * - NAA IEEE Registered
+	 * - NAA IEEE Extended
+	 * as longer descriptors reduce the likelyhood
+	 * of identification clashes.
+	 */
+
+	/* The id string must be at least 20 bytes + terminating NULL byte */
+	if (id_len < 21) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+
+	memset(id, 0, id_len);
+	d = vpd_pg83 + 4;
+	while (d < vpd_pg83 + sdev->vpd_pg83_len) {
+		/* Skip designators not referring to the LUN */
+		if ((d[1] & 0x30) != 0x00)
+			goto next_desig;
+
+		switch (d[1] & 0xf) {
+		case 0x2:
+			/* EUI-64 */
+			if (cur_id_size > d[3])
+				break;
+			/* Prefer NAA IEEE Registered Extended */
+			if (cur_id_type == 0x3 &&
+			    cur_id_size == d[3])
+				break;
+			cur_id_size = d[3];
+			cur_id_str = d + 4;
+			cur_id_type = d[1] & 0xf;
+			switch (cur_id_size) {
+			case 8:
+				id_size = snprintf(id, id_len,
+						   "eui.%8phN",
+						   cur_id_str);
+				break;
+			case 12:
+				id_size = snprintf(id, id_len,
+						   "eui.%12phN",
+						   cur_id_str);
+				break;
+			case 16:
+				id_size = snprintf(id, id_len,
+						   "eui.%16phN",
+						   cur_id_str);
+				break;
+			default:
+				cur_id_size = 0;
+				break;
+			}
+			break;
+		case 0x3:
+			/* NAA */
+			if (cur_id_size > d[3])
+				break;
+			cur_id_size = d[3];
+			cur_id_str = d + 4;
+			cur_id_type = d[1] & 0xf;
+			switch (cur_id_size) {
+			case 8:
+				id_size = snprintf(id, id_len,
+						   "naa.%8phN",
+						   cur_id_str);
+				break;
+			case 16:
+				id_size = snprintf(id, id_len,
+						   "naa.%16phN",
+						   cur_id_str);
+				break;
+			default:
+				cur_id_size = 0;
+				break;
+			}
+			break;
+		case 0x8:
+			/* SCSI name string */
+			if (cur_id_size + 4 > d[3])
+				break;
+			/* Prefer others for truncated descriptor */
+			if (cur_id_size && d[3] > id_len)
+				break;
+			cur_id_size = id_size = d[3];
+			cur_id_str = d + 4;
+			cur_id_type = d[1] & 0xf;
+			if (cur_id_size >= id_len)
+				cur_id_size = id_len - 1;
+			memcpy(id, cur_id_str, cur_id_size);
+			/* Decrease priority for truncated descriptor */
+			if (cur_id_size != id_size)
+				cur_id_size = 6;
+			break;
+		default:
+			break;
+		}
+next_desig:
+		d += d[3] + 4;
+	}
+	rcu_read_unlock();
+
+	return id_size;
+}
+EXPORT_SYMBOL(scsi_vpd_lun_id);
+
+/*
+ * scsi_vpd_tpg_id - return a target port group identifier
+ * @sdev: SCSI device
+ *
+ * Returns the Target Port Group identifier from the information
+ * froom VPD page 0x83 of the device.
+ *
+ * Returns the identifier or error on failure.
+ */
+int scsi_vpd_tpg_id(struct scsi_device *sdev, int *rel_id)
+{
+	unsigned char *d;
+	unsigned char __rcu *vpd_pg83;
+	int group_id = -EAGAIN, rel_port = -1;
+
+	rcu_read_lock();
+	vpd_pg83 = rcu_dereference(sdev->vpd_pg83);
+	if (!vpd_pg83) {
+		rcu_read_unlock();
+		return -ENXIO;
+	}
+
+	d = sdev->vpd_pg83 + 4;
+	while (d < sdev->vpd_pg83 + sdev->vpd_pg83_len) {
+		switch (d[1] & 0xf) {
+		case 0x4:
+			/* Relative target port */
+			rel_port = get_unaligned_be16(&d[6]);
+			break;
+		case 0x5:
+			/* Target port group */
+			group_id = get_unaligned_be16(&d[6]);
+			break;
+		default:
+			break;
+		}
+		d += d[3] + 4;
+	}
+	rcu_read_unlock();
+
+	if (group_id >= 0 && rel_id && rel_port != -1)
+		*rel_id = rel_port;
+
+	return group_id;
+}
+EXPORT_SYMBOL(scsi_vpd_tpg_id);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 4d01cdb1b348..27b4d0a6a01d 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -174,12 +174,11 @@ extern struct async_domain scsi_sd_probe_domain;
 #ifdef CONFIG_SCSI_DH
 int scsi_dh_add_device(struct scsi_device *sdev);
 void scsi_dh_release_device(struct scsi_device *sdev);
-void scsi_dh_remove_device(struct scsi_device *sdev);
 #else
 static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
 static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
-static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
 #endif
+static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
 
 /* 
  * internal scsi timeout functions: for use by mid-layer and transport
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 054923e3393c..6a820668d442 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -236,6 +236,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
 	INIT_LIST_HEAD(&sdev->starved_entry);
 	INIT_LIST_HEAD(&sdev->event_list);
 	spin_lock_init(&sdev->list_lock);
+	mutex_init(&sdev->inquiry_mutex);
 	INIT_WORK(&sdev->event_work, scsi_evt_thread);
 	INIT_WORK(&sdev->requeue_work, scsi_requeue_run_queue);
 
@@ -1519,6 +1520,9 @@ EXPORT_SYMBOL(scsi_add_device);
 void scsi_rescan_device(struct device *dev)
 {
 	device_lock(dev);
+
+	scsi_attach_vpd(to_scsi_device(dev));
+
 	if (dev->driver && try_module_get(dev->driver->owner)) {
 		struct scsi_driver *drv = to_scsi_driver(dev->driver);
 
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 21930c9ac9cd..4f18a851e2c7 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -17,6 +17,7 @@
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
+#include <scsi/scsi_dh.h>
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_driver.h>
 
@@ -760,11 +761,15 @@ show_vpd_##_page(struct file *filp, struct kobject *kobj,	\
 {									\
 	struct device *dev = container_of(kobj, struct device, kobj);	\
 	struct scsi_device *sdev = to_scsi_device(dev);			\
+	int ret;							\
 	if (!sdev->vpd_##_page)						\
 		return -EINVAL;						\
-	return memory_read_from_buffer(buf, count, &off,		\
-				       sdev->vpd_##_page,		\
+	rcu_read_lock();						\
+	ret = memory_read_from_buffer(buf, count, &off,			\
+				      rcu_dereference(sdev->vpd_##_page), \
 				       sdev->vpd_##_page##_len);	\
+	rcu_read_unlock();						\
+	return ret;						\
 }									\
 static struct bin_attribute dev_attr_vpd_##_page = {		\
 	.attr =	{.name = __stringify(vpd_##_page), .mode = S_IRUGO },	\
@@ -901,6 +906,76 @@ static DEVICE_ATTR(queue_depth, S_IRUGO | S_IWUSR, sdev_show_queue_depth,
 		   sdev_store_queue_depth);
 
 static ssize_t
+sdev_show_wwid(struct device *dev, struct device_attribute *attr,
+		    char *buf)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	ssize_t count;
+
+	count = scsi_vpd_lun_id(sdev, buf, PAGE_SIZE);
+	if (count > 0) {
+		buf[count] = '\n';
+		count++;
+	}
+	return count;
+}
+static DEVICE_ATTR(wwid, S_IRUGO, sdev_show_wwid, NULL);
+
+#ifdef CONFIG_SCSI_DH
+static ssize_t
+sdev_show_dh_state(struct device *dev, struct device_attribute *attr,
+		   char *buf)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+
+	if (!sdev->handler)
+		return snprintf(buf, 20, "detached\n");
+
+	return snprintf(buf, 20, "%s\n", sdev->handler->name);
+}
+
+static ssize_t
+sdev_store_dh_state(struct device *dev, struct device_attribute *attr,
+		    const char *buf, size_t count)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	int err = -EINVAL;
+
+	if (sdev->sdev_state == SDEV_CANCEL ||
+	    sdev->sdev_state == SDEV_DEL)
+		return -ENODEV;
+
+	if (!sdev->handler) {
+		/*
+		 * Attach to a device handler
+		 */
+		err = scsi_dh_attach(sdev->request_queue, buf);
+	} else if (!strncmp(buf, "activate", 8)) {
+		/*
+		 * Activate a device handler
+		 */
+		if (sdev->handler->activate)
+			err = sdev->handler->activate(sdev, NULL, NULL);
+		else
+			err = 0;
+	} else if (!strncmp(buf, "detach", 6)) {
+		/*
+		 * Detach from a device handler
+		 */
+		sdev_printk(KERN_WARNING, sdev,
+			    "can't detach handler %s.\n",
+			    sdev->handler->name);
+		err = -EINVAL;
+	}
+
+	return err < 0 ? err : count;
+}
+
+static DEVICE_ATTR(dh_state, S_IRUGO | S_IWUSR, sdev_show_dh_state,
+		   sdev_store_dh_state);
+#endif
+
+static ssize_t
 sdev_show_queue_ramp_up_period(struct device *dev,
 			       struct device_attribute *attr,
 			       char *buf)
@@ -969,6 +1044,10 @@ static struct attribute *scsi_sdev_attrs[] = {
 	&dev_attr_modalias.attr,
 	&dev_attr_queue_depth.attr,
 	&dev_attr_queue_type.attr,
+	&dev_attr_wwid.attr,
+#ifdef CONFIG_SCSI_DH
+	&dev_attr_dh_state.attr,
+#endif
 	&dev_attr_queue_ramp_up_period.attr,
 	REF_EVT(media_change),
 	REF_EVT(inquiry_change_reported),
@@ -1058,11 +1137,12 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 	}
 
 	error = scsi_dh_add_device(sdev);
-	if (error) {
+	if (error)
+		/*
+		 * device_handler is optional, so any error can be ignored
+		 */
 		sdev_printk(KERN_INFO, sdev,
 				"failed to add device handler: %d\n", error);
-		return error;
-	}
 
 	device_enable_async_suspend(&sdev->sdev_dev);
 	error = device_add(&sdev->sdev_dev);
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 24eaaf66af71..8a8822641b26 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2586,7 +2586,7 @@ fc_rport_final_delete(struct work_struct *work)
 	transport_remove_device(dev);
 	device_del(dev);
 	transport_destroy_device(dev);
-	put_device(&shost->shost_gendev);	/* for fc_host->rport list */
+	scsi_host_put(shost);			/* for fc_host->rport list */
 	put_device(dev);			/* for self-reference */
 }
 
@@ -2650,7 +2650,7 @@ fc_rport_create(struct Scsi_Host *shost, int channel,
 	else
 		rport->scsi_target_id = -1;
 	list_add_tail(&rport->peers, &fc_host->rports);
-	get_device(&shost->shost_gendev);	/* for fc_host->rport list */
+	scsi_host_get(shost);			/* for fc_host->rport list */
 
 	spin_unlock_irqrestore(shost->host_lock, flags);
 
@@ -2685,7 +2685,7 @@ delete_rport:
 	transport_destroy_device(dev);
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_del(&rport->peers);
-	put_device(&shost->shost_gendev);	/* for fc_host->rport list */
+	scsi_host_put(shost);			/* for fc_host->rport list */
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	put_device(dev->parent);
 	kfree(rport);
@@ -3383,7 +3383,7 @@ fc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev,
 	fc_host->npiv_vports_inuse++;
 	vport->number = fc_host->next_vport_number++;
 	list_add_tail(&vport->peers, &fc_host->vports);
-	get_device(&shost->shost_gendev);	/* for fc_host->vport list */
+	scsi_host_get(shost);			/* for fc_host->vport list */
 
 	spin_unlock_irqrestore(shost->host_lock, flags);
 
@@ -3441,7 +3441,7 @@ delete_vport:
 	transport_destroy_device(dev);
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_del(&vport->peers);
-	put_device(&shost->shost_gendev);	/* for fc_host->vport list */
+	scsi_host_put(shost);			/* for fc_host->vport list */
 	fc_host->npiv_vports_inuse--;
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	put_device(dev->parent);
@@ -3504,7 +3504,7 @@ fc_vport_terminate(struct fc_vport *vport)
 		vport->flags |= FC_VPORT_DELETED;
 		list_del(&vport->peers);
 		fc_host->npiv_vports_inuse--;
-		put_device(&shost->shost_gendev);  /* for fc_host->vport list */
+		scsi_host_put(shost);		/* for fc_host->vport list */
 	}
 	spin_unlock_irqrestore(shost->host_lock, flags);
 
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 30d26e345dcc..80520e2f0fa2 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -341,6 +341,22 @@ static int do_sas_phy_delete(struct device *dev, void *data)
 }
 
 /**
+ * is_sas_attached - check if device is SAS attached
+ * @sdev: scsi device to check
+ *
+ * returns true if the device is SAS attached
+ */
+int is_sas_attached(struct scsi_device *sdev)
+{
+	struct Scsi_Host *shost = sdev->host;
+
+	return shost->transportt->host_attrs.ac.class ==
+		&sas_host_class.class;
+}
+EXPORT_SYMBOL(is_sas_attached);
+
+
+/**
  * sas_remove_children  -  tear down a devices SAS data structures
  * @dev:	device belonging to the sas object
  *
@@ -367,6 +383,20 @@ void sas_remove_host(struct Scsi_Host *shost)
 EXPORT_SYMBOL(sas_remove_host);
 
 /**
+ * sas_get_address - return the SAS address of the device
+ * @sdev: scsi device
+ *
+ * Returns the SAS address of the scsi device
+ */
+u64 sas_get_address(struct scsi_device *sdev)
+{
+	struct sas_end_device *rdev = sas_sdev_to_rdev(sdev);
+
+	return rdev->rphy.identify.sas_address;
+}
+EXPORT_SYMBOL(sas_get_address);
+
+/**
  * sas_tlr_supported - checking TLR bit in vpd 0x90
  * @sdev: scsi device struct
  *
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 044d06410d4c..53ef1cb6418e 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -34,6 +34,8 @@
 #include <scsi/scsi_driver.h>
 #include <scsi/scsi_host.h>
 
+#include <scsi/scsi_transport_sas.h>
+
 struct ses_device {
 	unsigned char *page1;
 	unsigned char *page1_types;
@@ -579,31 +581,15 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
 static void ses_match_to_enclosure(struct enclosure_device *edev,
 				   struct scsi_device *sdev)
 {
-	unsigned char *desc;
 	struct efd efd = {
 		.addr = 0,
 	};
 
 	ses_enclosure_data_process(edev, to_scsi_device(edev->edev.parent), 0);
 
-	if (!sdev->vpd_pg83_len)
-		return;
-
-	desc = sdev->vpd_pg83 + 4;
-	while (desc < sdev->vpd_pg83 + sdev->vpd_pg83_len) {
-		enum scsi_protocol proto = desc[0] >> 4;
-		u8 code_set = desc[0] & 0x0f;
-		u8 piv = desc[1] & 0x80;
-		u8 assoc = (desc[1] & 0x30) >> 4;
-		u8 type = desc[1] & 0x0f;
-		u8 len = desc[3];
-
-		if (piv && code_set == 1 && assoc == 1
-		    && proto == SCSI_PROTOCOL_SAS && type == 3 && len == 8)
-			efd.addr = get_unaligned_be64(&desc[4]);
+	if (is_sas_attached(sdev))
+		efd.addr = sas_get_address(sdev);
 
-		desc += len + 4;
-	}
 	if (efd.addr) {
 		efd.dev = &sdev->sdev_gendev;
 
diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h
index b6486b5d8681..8c732c8de015 100644
--- a/drivers/scsi/st.h
+++ b/drivers/scsi/st.h
@@ -148,8 +148,6 @@ struct scsi_tape {
 	int tape_type;
 	int long_timeout;	/* timeout for commands known to take long time */
 
-	unsigned long max_pfn;	/* the maximum page number reachable by the HBA */
-
 	/* Mode characteristics */
 	struct st_modedef modes[ST_NBR_MODES];
 	int current_mode;
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 3fba42ad9fb8..41c115c230d9 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -41,6 +41,7 @@
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_devinfo.h>
 #include <scsi/scsi_dbg.h>
+#include <scsi/scsi_transport_fc.h>
 
 /*
  * All wire protocol details (storage protocol between the guest and the host)
@@ -92,9 +93,8 @@ enum vstor_packet_operation {
  */
 
 struct hv_fc_wwn_packet {
-	bool	primary_active;
-	u8	reserved1;
-	u8	reserved2;
+	u8	primary_active;
+	u8	reserved1[3];
 	u8	primary_port_wwn[8];
 	u8	primary_node_wwn[8];
 	u8	secondary_port_wwn[8];
@@ -164,6 +164,26 @@ static int sense_buffer_size = PRE_WIN8_STORVSC_SENSE_BUFFER_SIZE;
 */
 static int vmstor_proto_version;
 
+#define STORVSC_LOGGING_NONE	0
+#define STORVSC_LOGGING_ERROR	1
+#define STORVSC_LOGGING_WARN	2
+
+static int logging_level = STORVSC_LOGGING_ERROR;
+module_param(logging_level, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(logging_level,
+	"Logging level, 0 - None, 1 - Error (default), 2 - Warning.");
+
+static inline bool do_logging(int level)
+{
+	return logging_level >= level;
+}
+
+#define storvsc_log(dev, level, fmt, ...)			\
+do {								\
+	if (do_logging(level))					\
+		dev_warn(&(dev)->device, fmt, ##__VA_ARGS__);	\
+} while (0)
+
 struct vmscsi_win8_extension {
 	/*
 	 * The following were added in Windows 8
@@ -378,6 +398,9 @@ static int storvsc_timeout = 180;
 
 static int msft_blist_flags = BLIST_TRY_VPD_PAGES;
 
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+static struct scsi_transport_template *fc_transport_template;
+#endif
 
 static void storvsc_on_channel_callback(void *context);
 
@@ -437,6 +460,11 @@ struct storvsc_device {
 	/* Used for vsc/vsp channel reset process */
 	struct storvsc_cmd_request init_request;
 	struct storvsc_cmd_request reset_request;
+	/*
+	 * Currently active port and node names for FC devices.
+	 */
+	u64 node_name;
+	u64 port_name;
 };
 
 struct hv_host_device {
@@ -676,29 +704,36 @@ static void  handle_multichannel_storage(struct hv_device *device, int max_chns)
 	vmbus_are_subchannels_present(device->channel);
 }
 
-static int storvsc_channel_init(struct hv_device *device)
+static void cache_wwn(struct storvsc_device *stor_device,
+		      struct vstor_packet *vstor_packet)
 {
-	struct storvsc_device *stor_device;
-	struct storvsc_cmd_request *request;
-	struct vstor_packet *vstor_packet;
-	int ret, t, i;
-	int max_chns;
-	bool process_sub_channels = false;
+	/*
+	 * Cache the currently active port and node ww names.
+	 */
+	if (vstor_packet->wwn_packet.primary_active) {
+		stor_device->node_name =
+			wwn_to_u64(vstor_packet->wwn_packet.primary_node_wwn);
+		stor_device->port_name =
+			wwn_to_u64(vstor_packet->wwn_packet.primary_port_wwn);
+	} else {
+		stor_device->node_name =
+			wwn_to_u64(vstor_packet->wwn_packet.secondary_node_wwn);
+		stor_device->port_name =
+			wwn_to_u64(vstor_packet->wwn_packet.secondary_port_wwn);
+	}
+}
 
-	stor_device = get_out_stor_device(device);
-	if (!stor_device)
-		return -ENODEV;
 
-	request = &stor_device->init_request;
+static int storvsc_execute_vstor_op(struct hv_device *device,
+				    struct storvsc_cmd_request *request,
+				    bool status_check)
+{
+	struct vstor_packet *vstor_packet;
+	int ret, t;
+
 	vstor_packet = &request->vstor_packet;
 
-	/*
-	 * Now, initiate the vsc/vsp initialization protocol on the open
-	 * channel
-	 */
-	memset(request, 0, sizeof(struct storvsc_cmd_request));
 	init_completion(&request->wait_event);
-	vstor_packet->operation = VSTOR_OPERATION_BEGIN_INITIALIZATION;
 	vstor_packet->flags = REQUEST_COMPLETION_FLAG;
 
 	ret = vmbus_sendpacket(device->channel, vstor_packet,
@@ -708,27 +743,56 @@ static int storvsc_channel_init(struct hv_device *device)
 			       VM_PKT_DATA_INBAND,
 			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
 	if (ret != 0)
-		goto cleanup;
+		return ret;
 
 	t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
-	if (t == 0) {
-		ret = -ETIMEDOUT;
-		goto cleanup;
-	}
+	if (t == 0)
+		return -ETIMEDOUT;
+
+	if (!status_check)
+		return ret;
 
 	if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
-	    vstor_packet->status != 0) {
-		ret = -EINVAL;
-		goto cleanup;
-	}
+	    vstor_packet->status != 0)
+		return -EINVAL;
+
+	return ret;
+}
+
+static int storvsc_channel_init(struct hv_device *device, bool is_fc)
+{
+	struct storvsc_device *stor_device;
+	struct storvsc_cmd_request *request;
+	struct vstor_packet *vstor_packet;
+	int ret, i;
+	int max_chns;
+	bool process_sub_channels = false;
 
+	stor_device = get_out_stor_device(device);
+	if (!stor_device)
+		return -ENODEV;
+
+	request = &stor_device->init_request;
+	vstor_packet = &request->vstor_packet;
+
+	/*
+	 * Now, initiate the vsc/vsp initialization protocol on the open
+	 * channel
+	 */
+	memset(request, 0, sizeof(struct storvsc_cmd_request));
+	vstor_packet->operation = VSTOR_OPERATION_BEGIN_INITIALIZATION;
+	ret = storvsc_execute_vstor_op(device, request, true);
+	if (ret)
+		return ret;
+	/*
+	 * Query host supported protocol version.
+	 */
 
 	for (i = 0; i < ARRAY_SIZE(vmstor_protocols); i++) {
 		/* reuse the packet for version range supported */
 		memset(vstor_packet, 0, sizeof(struct vstor_packet));
 		vstor_packet->operation =
 			VSTOR_OPERATION_QUERY_PROTOCOL_VERSION;
-		vstor_packet->flags = REQUEST_COMPLETION_FLAG;
 
 		vstor_packet->version.major_minor =
 			vmstor_protocols[i].protocol_version;
@@ -737,26 +801,12 @@ static int storvsc_channel_init(struct hv_device *device)
 		 * The revision number is only used in Windows; set it to 0.
 		 */
 		vstor_packet->version.revision = 0;
-
-		ret = vmbus_sendpacket(device->channel, vstor_packet,
-			       (sizeof(struct vstor_packet) -
-				vmscsi_size_delta),
-			       (unsigned long)request,
-			       VM_PKT_DATA_INBAND,
-			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+		ret = storvsc_execute_vstor_op(device, request, false);
 		if (ret != 0)
-			goto cleanup;
+			return ret;
 
-		t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
-		if (t == 0) {
-			ret = -ETIMEDOUT;
-			goto cleanup;
-		}
-
-		if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO) {
-			ret = -EINVAL;
-			goto cleanup;
-		}
+		if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO)
+			return -EINVAL;
 
 		if (vstor_packet->status == 0) {
 			vmstor_proto_version =
@@ -772,37 +822,15 @@ static int storvsc_channel_init(struct hv_device *device)
 		}
 	}
 
-	if (vstor_packet->status != 0) {
-		ret = -EINVAL;
-		goto cleanup;
-	}
+	if (vstor_packet->status != 0)
+		return -EINVAL;
 
 
 	memset(vstor_packet, 0, sizeof(struct vstor_packet));
 	vstor_packet->operation = VSTOR_OPERATION_QUERY_PROPERTIES;
-	vstor_packet->flags = REQUEST_COMPLETION_FLAG;
-
-	ret = vmbus_sendpacket(device->channel, vstor_packet,
-			       (sizeof(struct vstor_packet) -
-				vmscsi_size_delta),
-			       (unsigned long)request,
-			       VM_PKT_DATA_INBAND,
-			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
-
+	ret = storvsc_execute_vstor_op(device, request, true);
 	if (ret != 0)
-		goto cleanup;
-
-	t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
-	if (t == 0) {
-		ret = -ETIMEDOUT;
-		goto cleanup;
-	}
-
-	if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
-	    vstor_packet->status != 0) {
-		ret = -EINVAL;
-		goto cleanup;
-	}
+		return ret;
 
 	/*
 	 * Check to see if multi-channel support is there.
@@ -818,37 +846,34 @@ static int storvsc_channel_init(struct hv_device *device)
 	stor_device->max_transfer_bytes =
 		vstor_packet->storage_channel_properties.max_transfer_bytes;
 
-	memset(vstor_packet, 0, sizeof(struct vstor_packet));
-	vstor_packet->operation = VSTOR_OPERATION_END_INITIALIZATION;
-	vstor_packet->flags = REQUEST_COMPLETION_FLAG;
-
-	ret = vmbus_sendpacket(device->channel, vstor_packet,
-			       (sizeof(struct vstor_packet) -
-				vmscsi_size_delta),
-			       (unsigned long)request,
-			       VM_PKT_DATA_INBAND,
-			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+	if (!is_fc)
+		goto done;
 
+	/*
+	 * For FC devices retrieve FC HBA data.
+	 */
+	memset(vstor_packet, 0, sizeof(struct vstor_packet));
+	vstor_packet->operation = VSTOR_OPERATION_FCHBA_DATA;
+	ret = storvsc_execute_vstor_op(device, request, true);
 	if (ret != 0)
-		goto cleanup;
+		return ret;
 
-	t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
-	if (t == 0) {
-		ret = -ETIMEDOUT;
-		goto cleanup;
-	}
+	/*
+	 * Cache the currently active port and node ww names.
+	 */
+	cache_wwn(stor_device, vstor_packet);
 
-	if (vstor_packet->operation != VSTOR_OPERATION_COMPLETE_IO ||
-	    vstor_packet->status != 0) {
-		ret = -EINVAL;
-		goto cleanup;
-	}
+done:
+
+	memset(vstor_packet, 0, sizeof(struct vstor_packet));
+	vstor_packet->operation = VSTOR_OPERATION_END_INITIALIZATION;
+	ret = storvsc_execute_vstor_op(device, request, true);
+	if (ret != 0)
+		return ret;
 
 	if (process_sub_channels)
 		handle_multichannel_storage(device, max_chns);
 
-
-cleanup:
 	return ret;
 }
 
@@ -920,19 +945,16 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
 }
 
 
-static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request)
+static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request,
+				       struct storvsc_device *stor_dev)
 {
 	struct scsi_cmnd *scmnd = cmd_request->cmd;
-	struct hv_host_device *host_dev = shost_priv(scmnd->device->host);
 	struct scsi_sense_hdr sense_hdr;
 	struct vmscsi_request *vm_srb;
 	struct Scsi_Host *host;
-	struct storvsc_device *stor_dev;
-	struct hv_device *dev = host_dev->dev;
 	u32 payload_sz = cmd_request->payload_sz;
 	void *payload = cmd_request->payload;
 
-	stor_dev = get_in_stor_device(dev);
 	host = stor_dev->host;
 
 	vm_srb = &cmd_request->vstor_packet.vm_srb;
@@ -941,7 +963,8 @@ static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request)
 
 	if (scmnd->result) {
 		if (scsi_normalize_sense(scmnd->sense_buffer,
-				SCSI_SENSE_BUFFERSIZE, &sense_hdr))
+				SCSI_SENSE_BUFFERSIZE, &sense_hdr) &&
+		    do_logging(STORVSC_LOGGING_ERROR))
 			scsi_print_sense_hdr(scmnd->device, "storvsc",
 					     &sense_hdr);
 	}
@@ -961,14 +984,13 @@ static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request)
 		kfree(payload);
 }
 
-static void storvsc_on_io_completion(struct hv_device *device,
+static void storvsc_on_io_completion(struct storvsc_device *stor_device,
 				  struct vstor_packet *vstor_packet,
 				  struct storvsc_cmd_request *request)
 {
-	struct storvsc_device *stor_device;
 	struct vstor_packet *stor_pkt;
+	struct hv_device *device = stor_device->device;
 
-	stor_device = hv_get_drvdata(device);
 	stor_pkt = &request->vstor_packet;
 
 	/*
@@ -995,6 +1017,13 @@ static void storvsc_on_io_completion(struct hv_device *device,
 	stor_pkt->vm_srb.sense_info_length =
 	vstor_packet->vm_srb.sense_info_length;
 
+	if (vstor_packet->vm_srb.scsi_status != 0 ||
+	    vstor_packet->vm_srb.srb_status != SRB_STATUS_SUCCESS)
+		storvsc_log(device, STORVSC_LOGGING_WARN,
+			"cmd 0x%x scsi status 0x%x srb status 0x%x\n",
+			stor_pkt->vm_srb.cdb[0],
+			vstor_packet->vm_srb.scsi_status,
+			vstor_packet->vm_srb.srb_status);
 
 	if ((vstor_packet->vm_srb.scsi_status & 0xFF) == 0x02) {
 		/* CHECK_CONDITION */
@@ -1002,6 +1031,10 @@ static void storvsc_on_io_completion(struct hv_device *device,
 			SRB_STATUS_AUTOSENSE_VALID) {
 			/* autosense data available */
 
+			storvsc_log(device, STORVSC_LOGGING_WARN,
+				"stor pkt %p autosense data valid - len %d\n",
+				request, vstor_packet->vm_srb.sense_info_length);
+
 			memcpy(request->cmd->sense_buffer,
 			       vstor_packet->vm_srb.sense_data,
 			       vstor_packet->vm_srb.sense_info_length);
@@ -1012,7 +1045,7 @@ static void storvsc_on_io_completion(struct hv_device *device,
 	stor_pkt->vm_srb.data_transfer_length =
 	vstor_packet->vm_srb.data_transfer_length;
 
-	storvsc_command_completion(request);
+	storvsc_command_completion(request, stor_device);
 
 	if (atomic_dec_and_test(&stor_device->num_outstanding_req) &&
 		stor_device->drain_notify)
@@ -1021,21 +1054,19 @@ static void storvsc_on_io_completion(struct hv_device *device,
 
 }
 
-static void storvsc_on_receive(struct hv_device *device,
+static void storvsc_on_receive(struct storvsc_device *stor_device,
 			     struct vstor_packet *vstor_packet,
 			     struct storvsc_cmd_request *request)
 {
 	struct storvsc_scan_work *work;
-	struct storvsc_device *stor_device;
 
 	switch (vstor_packet->operation) {
 	case VSTOR_OPERATION_COMPLETE_IO:
-		storvsc_on_io_completion(device, vstor_packet, request);
+		storvsc_on_io_completion(stor_device, vstor_packet, request);
 		break;
 
 	case VSTOR_OPERATION_REMOVE_DEVICE:
 	case VSTOR_OPERATION_ENUMERATE_BUS:
-		stor_device = get_in_stor_device(device);
 		work = kmalloc(sizeof(struct storvsc_scan_work), GFP_ATOMIC);
 		if (!work)
 			return;
@@ -1045,6 +1076,13 @@ static void storvsc_on_receive(struct hv_device *device,
 		schedule_work(&work->work);
 		break;
 
+	case VSTOR_OPERATION_FCHBA_DATA:
+		cache_wwn(stor_device, vstor_packet);
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+		fc_host_node_name(stor_device->host) = stor_device->node_name;
+		fc_host_port_name(stor_device->host) = stor_device->port_name;
+#endif
+		break;
 	default:
 		break;
 	}
@@ -1088,7 +1126,7 @@ static void storvsc_on_channel_callback(void *context)
 					vmscsi_size_delta));
 				complete(&request->wait_event);
 			} else {
-				storvsc_on_receive(device,
+				storvsc_on_receive(stor_device,
 						(struct vstor_packet *)packet,
 						request);
 			}
@@ -1100,7 +1138,8 @@ static void storvsc_on_channel_callback(void *context)
 	return;
 }
 
-static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size)
+static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size,
+				  bool is_fc)
 {
 	struct vmstorage_channel_properties props;
 	int ret;
@@ -1117,7 +1156,7 @@ static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size)
 	if (ret != 0)
 		return ret;
 
-	ret = storvsc_channel_init(device);
+	ret = storvsc_channel_init(device, is_fc);
 
 	return ret;
 }
@@ -1542,6 +1581,7 @@ static int storvsc_probe(struct hv_device *device,
 	struct Scsi_Host *host;
 	struct hv_host_device *host_dev;
 	bool dev_is_ide = ((dev_id->driver_data == IDE_GUID) ? true : false);
+	bool is_fc = ((dev_id->driver_data == SFC_GUID) ? true : false);
 	int target = 0;
 	struct storvsc_device *stor_device;
 	int max_luns_per_target;
@@ -1599,7 +1639,7 @@ static int storvsc_probe(struct hv_device *device,
 	hv_set_drvdata(device, stor_device);
 
 	stor_device->port_number = host->host_no;
-	ret = storvsc_connect_to_vsp(device, storvsc_ringbuffer_size);
+	ret = storvsc_connect_to_vsp(device, storvsc_ringbuffer_size, is_fc);
 	if (ret)
 		goto err_out1;
 
@@ -1611,6 +1651,9 @@ static int storvsc_probe(struct hv_device *device,
 		host->max_lun = STORVSC_FC_MAX_LUNS_PER_TARGET;
 		host->max_id = STORVSC_FC_MAX_TARGETS;
 		host->max_channel = STORVSC_FC_MAX_CHANNELS - 1;
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+		host->transportt = fc_transport_template;
+#endif
 		break;
 
 	case SCSI_GUID:
@@ -1650,6 +1693,12 @@ static int storvsc_probe(struct hv_device *device,
 			goto err_out2;
 		}
 	}
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+	if (host->transportt == fc_transport_template) {
+		fc_host_node_name(host) = stor_device->node_name;
+		fc_host_port_name(host) = stor_device->port_name;
+	}
+#endif
 	return 0;
 
 err_out2:
@@ -1675,6 +1724,10 @@ static int storvsc_remove(struct hv_device *dev)
 	struct storvsc_device *stor_device = hv_get_drvdata(dev);
 	struct Scsi_Host *host = stor_device->host;
 
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+	if (host->transportt == fc_transport_template)
+		fc_remove_host(host);
+#endif
 	scsi_remove_host(host);
 	storvsc_dev_remove(dev);
 	scsi_host_put(host);
@@ -1689,8 +1742,16 @@ static struct hv_driver storvsc_drv = {
 	.remove = storvsc_remove,
 };
 
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+static struct fc_function_template fc_transport_functions = {
+	.show_host_node_name = 1,
+	.show_host_port_name = 1,
+};
+#endif
+
 static int __init storvsc_drv_init(void)
 {
+	int ret;
 
 	/*
 	 * Divide the ring buffer data size (which is 1 page less
@@ -1705,12 +1766,28 @@ static int __init storvsc_drv_init(void)
 		vmscsi_size_delta,
 		sizeof(u64)));
 
-	return vmbus_driver_register(&storvsc_drv);
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+	fc_transport_template = fc_attach_transport(&fc_transport_functions);
+	if (!fc_transport_template)
+		return -ENODEV;
+#endif
+
+	ret = vmbus_driver_register(&storvsc_drv);
+
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+	if (ret)
+		fc_release_transport(fc_transport_template);
+#endif
+
+	return ret;
 }
 
 static void __exit storvsc_drv_exit(void)
 {
 	vmbus_driver_unregister(&storvsc_drv);
+#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
+	fc_release_transport(fc_transport_template);
+#endif
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 9714f2a8b329..d2a7b127b05c 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -333,7 +333,7 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
 
 	err = ufshcd_init(hba, mmio_base, irq);
 	if (err) {
-		dev_err(dev, "Intialization failed\n");
+		dev_err(dev, "Initialization failed\n");
 		goto out_disable_rpm;
 	}
 
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 0f133c1817de..6164634aff18 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -349,9 +349,9 @@ static void pvscsi_create_sg(struct pvscsi_ctx *ctx,
  * Map all data buffers for a command into PCI space and
  * setup the scatter/gather list if needed.
  */
-static void pvscsi_map_buffers(struct pvscsi_adapter *adapter,
-			       struct pvscsi_ctx *ctx, struct scsi_cmnd *cmd,
-			       struct PVSCSIRingReqDesc *e)
+static int pvscsi_map_buffers(struct pvscsi_adapter *adapter,
+			      struct pvscsi_ctx *ctx, struct scsi_cmnd *cmd,
+			      struct PVSCSIRingReqDesc *e)
 {
 	unsigned count;
 	unsigned bufflen = scsi_bufflen(cmd);
@@ -360,18 +360,30 @@ static void pvscsi_map_buffers(struct pvscsi_adapter *adapter,
 	e->dataLen = bufflen;
 	e->dataAddr = 0;
 	if (bufflen == 0)
-		return;
+		return 0;
 
 	sg = scsi_sglist(cmd);
 	count = scsi_sg_count(cmd);
 	if (count != 0) {
 		int segs = scsi_dma_map(cmd);
-		if (segs > 1) {
+
+		if (segs == -ENOMEM) {
+			scmd_printk(KERN_ERR, cmd,
+				    "vmw_pvscsi: Failed to map cmd sglist for DMA.\n");
+			return -ENOMEM;
+		} else if (segs > 1) {
 			pvscsi_create_sg(ctx, sg, segs);
 
 			e->flags |= PVSCSI_FLAG_CMD_WITH_SG_LIST;
 			ctx->sglPA = pci_map_single(adapter->dev, ctx->sgl,
 						    SGL_SIZE, PCI_DMA_TODEVICE);
+			if (pci_dma_mapping_error(adapter->dev, ctx->sglPA)) {
+				scmd_printk(KERN_ERR, cmd,
+					    "vmw_pvscsi: Failed to map ctx sglist for DMA.\n");
+				scsi_dma_unmap(cmd);
+				ctx->sglPA = 0;
+				return -ENOMEM;
+			}
 			e->dataAddr = ctx->sglPA;
 		} else
 			e->dataAddr = sg_dma_address(sg);
@@ -382,8 +394,15 @@ static void pvscsi_map_buffers(struct pvscsi_adapter *adapter,
 		 */
 		ctx->dataPA = pci_map_single(adapter->dev, sg, bufflen,
 					     cmd->sc_data_direction);
+		if (pci_dma_mapping_error(adapter->dev, ctx->dataPA)) {
+			scmd_printk(KERN_ERR, cmd,
+				    "vmw_pvscsi: Failed to map direct data buffer for DMA.\n");
+			return -ENOMEM;
+		}
 		e->dataAddr = ctx->dataPA;
 	}
+
+	return 0;
 }
 
 static void pvscsi_unmap_buffers(const struct pvscsi_adapter *adapter,
@@ -690,6 +709,12 @@ static int pvscsi_queue_ring(struct pvscsi_adapter *adapter,
 		ctx->sensePA = pci_map_single(adapter->dev, cmd->sense_buffer,
 					      SCSI_SENSE_BUFFERSIZE,
 					      PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(adapter->dev, ctx->sensePA)) {
+			scmd_printk(KERN_ERR, cmd,
+				    "vmw_pvscsi: Failed to map sense buffer for DMA.\n");
+			ctx->sensePA = 0;
+			return -ENOMEM;
+		}
 		e->senseAddr = ctx->sensePA;
 		e->senseLen = SCSI_SENSE_BUFFERSIZE;
 	} else {
@@ -711,7 +736,15 @@ static int pvscsi_queue_ring(struct pvscsi_adapter *adapter,
 	else
 		e->flags = 0;
 
-	pvscsi_map_buffers(adapter, ctx, cmd, e);
+	if (pvscsi_map_buffers(adapter, ctx, cmd, e) != 0) {
+		if (cmd->sense_buffer) {
+			pci_unmap_single(adapter->dev, ctx->sensePA,
+					 SCSI_SENSE_BUFFERSIZE,
+					 PCI_DMA_FROMDEVICE);
+			ctx->sensePA = 0;
+		}
+		return -ENOMEM;
+	}
 
 	e->context = pvscsi_map_context(adapter, ctx);
 
diff --git a/drivers/scsi/vmw_pvscsi.h b/drivers/scsi/vmw_pvscsi.h
index ee16f0c5c47d..12712c92f37a 100644
--- a/drivers/scsi/vmw_pvscsi.h
+++ b/drivers/scsi/vmw_pvscsi.h
@@ -26,7 +26,7 @@
 
 #include <linux/types.h>
 
-#define PVSCSI_DRIVER_VERSION_STRING   "1.0.5.0-k"
+#define PVSCSI_DRIVER_VERSION_STRING   "1.0.6.0-k"
 
 #define PVSCSI_MAX_NUM_SG_ENTRIES_PER_SEGMENT 128
 
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 4e853ed2c82b..ad0df75fab6e 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -1,6 +1,7 @@
 menu "SOC (System On Chip) specific Drivers"
 
 source "drivers/soc/brcmstb/Kconfig"
+source "drivers/soc/fsl/qe/Kconfig"
 source "drivers/soc/mediatek/Kconfig"
 source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/rockchip/Kconfig"
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index f2ba2e932ae1..9536b804424a 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -4,6 +4,7 @@
 
 obj-$(CONFIG_SOC_BRCMSTB)	+= brcmstb/
 obj-$(CONFIG_MACH_DOVE)		+= dove/
+obj-y				+= fsl/
 obj-$(CONFIG_ARCH_MEDIATEK)	+= mediatek/
 obj-$(CONFIG_ARCH_QCOM)		+= qcom/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
diff --git a/drivers/soc/fsl/Makefile b/drivers/soc/fsl/Makefile
new file mode 100644
index 000000000000..203307fd92c1
--- /dev/null
+++ b/drivers/soc/fsl/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the Linux Kernel SOC fsl specific device drivers
+#
+
+obj-$(CONFIG_QUICC_ENGINE)		+= qe/
+obj-$(CONFIG_CPM)			+= qe/
diff --git a/drivers/soc/fsl/qe/Kconfig b/drivers/soc/fsl/qe/Kconfig
new file mode 100644
index 000000000000..20978f2058a6
--- /dev/null
+++ b/drivers/soc/fsl/qe/Kconfig
@@ -0,0 +1,38 @@
+#
+# QE Communication options
+#
+
+config QUICC_ENGINE
+	bool "Freescale QUICC Engine (QE) Support"
+	depends on FSL_SOC && PPC32
+	select GENERIC_ALLOCATOR
+	select CRC32
+	help
+	  The QUICC Engine (QE) is a new generation of communications
+	  coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
+	  Selecting this option means that you wish to build a kernel
+	  for a machine with a QE coprocessor.
+
+config UCC_SLOW
+	bool
+	default y if SERIAL_QE
+	help
+	  This option provides qe_lib support to UCC slow
+	  protocols: UART, BISYNC, QMC
+
+config UCC_FAST
+	bool
+	default y if UCC_GETH
+	help
+	  This option provides qe_lib support to UCC fast
+	  protocols: HDLC, Ethernet, ATM, transparent
+
+config UCC
+	bool
+	default y if UCC_FAST || UCC_SLOW
+
+config QE_USB
+	bool
+	default y if USB_FSL_QE
+	help
+	  QE USB Controller support
diff --git a/drivers/soc/fsl/qe/Makefile b/drivers/soc/fsl/qe/Makefile
new file mode 100644
index 000000000000..ffac5410c5c7
--- /dev/null
+++ b/drivers/soc/fsl/qe/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux ppc-specific parts of QE
+#
+obj-$(CONFIG_QUICC_ENGINE)+= qe.o qe_common.o qe_ic.o qe_io.o
+obj-$(CONFIG_CPM)	+= qe_common.o
+obj-$(CONFIG_UCC)	+= ucc.o
+obj-$(CONFIG_UCC_SLOW)	+= ucc_slow.o
+obj-$(CONFIG_UCC_FAST)	+= ucc_fast.o
+obj-$(CONFIG_QE_USB)	+= usb.o
+obj-$(CONFIG_QE_GPIO)	+= gpio.o
diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
new file mode 100644
index 000000000000..aa5c11acf212
--- /dev/null
+++ b/drivers/soc/fsl/qe/gpio.c
@@ -0,0 +1,317 @@
+/*
+ * QUICC Engine GPIOs
+ *
+ * Copyright (c) MontaVista Software, Inc. 2008.
+ *
+ * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <soc/fsl/qe/qe.h>
+
+struct qe_gpio_chip {
+	struct of_mm_gpio_chip mm_gc;
+	spinlock_t lock;
+
+	unsigned long pin_flags[QE_PIO_PINS];
+#define QE_PIN_REQUESTED 0
+
+	/* shadowed data register to clear/set bits safely */
+	u32 cpdata;
+
+	/* saved_regs used to restore dedicated functions */
+	struct qe_pio_regs saved_regs;
+};
+
+static inline struct qe_gpio_chip *
+to_qe_gpio_chip(struct of_mm_gpio_chip *mm_gc)
+{
+	return container_of(mm_gc, struct qe_gpio_chip, mm_gc);
+}
+
+static void qe_gpio_save_regs(struct of_mm_gpio_chip *mm_gc)
+{
+	struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+	struct qe_pio_regs __iomem *regs = mm_gc->regs;
+
+	qe_gc->cpdata = in_be32(&regs->cpdata);
+	qe_gc->saved_regs.cpdata = qe_gc->cpdata;
+	qe_gc->saved_regs.cpdir1 = in_be32(&regs->cpdir1);
+	qe_gc->saved_regs.cpdir2 = in_be32(&regs->cpdir2);
+	qe_gc->saved_regs.cppar1 = in_be32(&regs->cppar1);
+	qe_gc->saved_regs.cppar2 = in_be32(&regs->cppar2);
+	qe_gc->saved_regs.cpodr = in_be32(&regs->cpodr);
+}
+
+static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio)
+{
+	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+	struct qe_pio_regs __iomem *regs = mm_gc->regs;
+	u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio);
+
+	return in_be32(&regs->cpdata) & pin_mask;
+}
+
+static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+	struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+	struct qe_pio_regs __iomem *regs = mm_gc->regs;
+	unsigned long flags;
+	u32 pin_mask = 1 << (QE_PIO_PINS - 1 - gpio);
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	if (val)
+		qe_gc->cpdata |= pin_mask;
+	else
+		qe_gc->cpdata &= ~pin_mask;
+
+	out_be32(&regs->cpdata, qe_gc->cpdata);
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+}
+
+static int qe_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
+{
+	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+	struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+	unsigned long flags;
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	__par_io_config_pin(mm_gc->regs, gpio, QE_PIO_DIR_IN, 0, 0, 0);
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+
+	return 0;
+}
+
+static int qe_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+	struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
+	unsigned long flags;
+
+	qe_gpio_set(gc, gpio, val);
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	__par_io_config_pin(mm_gc->regs, gpio, QE_PIO_DIR_OUT, 0, 0, 0);
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+
+	return 0;
+}
+
+struct qe_pin {
+	/*
+	 * The qe_gpio_chip name is unfortunate, we should change that to
+	 * something like qe_pio_controller. Someday.
+	 */
+	struct qe_gpio_chip *controller;
+	int num;
+};
+
+/**
+ * qe_pin_request - Request a QE pin
+ * @np:		device node to get a pin from
+ * @index:	index of a pin in the device tree
+ * Context:	non-atomic
+ *
+ * This function return qe_pin so that you could use it with the rest of
+ * the QE Pin Multiplexing API.
+ */
+struct qe_pin *qe_pin_request(struct device_node *np, int index)
+{
+	struct qe_pin *qe_pin;
+	struct gpio_chip *gc;
+	struct of_mm_gpio_chip *mm_gc;
+	struct qe_gpio_chip *qe_gc;
+	int err;
+	unsigned long flags;
+
+	qe_pin = kzalloc(sizeof(*qe_pin), GFP_KERNEL);
+	if (!qe_pin) {
+		pr_debug("%s: can't allocate memory\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	err = of_get_gpio(np, index);
+	if (err < 0)
+		goto err0;
+	gc = gpio_to_chip(err);
+	if (WARN_ON(!gc))
+		goto err0;
+
+	if (!of_device_is_compatible(gc->of_node, "fsl,mpc8323-qe-pario-bank")) {
+		pr_debug("%s: tried to get a non-qe pin\n", __func__);
+		err = -EINVAL;
+		goto err0;
+	}
+
+	mm_gc = to_of_mm_gpio_chip(gc);
+	qe_gc = to_qe_gpio_chip(mm_gc);
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	err -= gc->base;
+	if (test_and_set_bit(QE_PIN_REQUESTED, &qe_gc->pin_flags[err]) == 0) {
+		qe_pin->controller = qe_gc;
+		qe_pin->num = err;
+		err = 0;
+	} else {
+		err = -EBUSY;
+	}
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+
+	if (!err)
+		return qe_pin;
+err0:
+	kfree(qe_pin);
+	pr_debug("%s failed with status %d\n", __func__, err);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL(qe_pin_request);
+
+/**
+ * qe_pin_free - Free a pin
+ * @qe_pin:	pointer to the qe_pin structure
+ * Context:	any
+ *
+ * This function frees the qe_pin structure and makes a pin available
+ * for further qe_pin_request() calls.
+ */
+void qe_pin_free(struct qe_pin *qe_pin)
+{
+	struct qe_gpio_chip *qe_gc = qe_pin->controller;
+	unsigned long flags;
+	const int pin = qe_pin->num;
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+	test_and_clear_bit(QE_PIN_REQUESTED, &qe_gc->pin_flags[pin]);
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+
+	kfree(qe_pin);
+}
+EXPORT_SYMBOL(qe_pin_free);
+
+/**
+ * qe_pin_set_dedicated - Revert a pin to a dedicated peripheral function mode
+ * @qe_pin:	pointer to the qe_pin structure
+ * Context:	any
+ *
+ * This function resets a pin to a dedicated peripheral function that
+ * has been set up by the firmware.
+ */
+void qe_pin_set_dedicated(struct qe_pin *qe_pin)
+{
+	struct qe_gpio_chip *qe_gc = qe_pin->controller;
+	struct qe_pio_regs __iomem *regs = qe_gc->mm_gc.regs;
+	struct qe_pio_regs *sregs = &qe_gc->saved_regs;
+	int pin = qe_pin->num;
+	u32 mask1 = 1 << (QE_PIO_PINS - (pin + 1));
+	u32 mask2 = 0x3 << (QE_PIO_PINS - (pin % (QE_PIO_PINS / 2) + 1) * 2);
+	bool second_reg = pin > (QE_PIO_PINS / 2) - 1;
+	unsigned long flags;
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	if (second_reg) {
+		clrsetbits_be32(&regs->cpdir2, mask2, sregs->cpdir2 & mask2);
+		clrsetbits_be32(&regs->cppar2, mask2, sregs->cppar2 & mask2);
+	} else {
+		clrsetbits_be32(&regs->cpdir1, mask2, sregs->cpdir1 & mask2);
+		clrsetbits_be32(&regs->cppar1, mask2, sregs->cppar1 & mask2);
+	}
+
+	if (sregs->cpdata & mask1)
+		qe_gc->cpdata |= mask1;
+	else
+		qe_gc->cpdata &= ~mask1;
+
+	out_be32(&regs->cpdata, qe_gc->cpdata);
+	clrsetbits_be32(&regs->cpodr, mask1, sregs->cpodr & mask1);
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+}
+EXPORT_SYMBOL(qe_pin_set_dedicated);
+
+/**
+ * qe_pin_set_gpio - Set a pin to the GPIO mode
+ * @qe_pin:	pointer to the qe_pin structure
+ * Context:	any
+ *
+ * This function sets a pin to the GPIO mode.
+ */
+void qe_pin_set_gpio(struct qe_pin *qe_pin)
+{
+	struct qe_gpio_chip *qe_gc = qe_pin->controller;
+	struct qe_pio_regs __iomem *regs = qe_gc->mm_gc.regs;
+	unsigned long flags;
+
+	spin_lock_irqsave(&qe_gc->lock, flags);
+
+	/* Let's make it input by default, GPIO API is able to change that. */
+	__par_io_config_pin(regs, qe_pin->num, QE_PIO_DIR_IN, 0, 0, 0);
+
+	spin_unlock_irqrestore(&qe_gc->lock, flags);
+}
+EXPORT_SYMBOL(qe_pin_set_gpio);
+
+static int __init qe_add_gpiochips(void)
+{
+	struct device_node *np;
+
+	for_each_compatible_node(np, NULL, "fsl,mpc8323-qe-pario-bank") {
+		int ret;
+		struct qe_gpio_chip *qe_gc;
+		struct of_mm_gpio_chip *mm_gc;
+		struct gpio_chip *gc;
+
+		qe_gc = kzalloc(sizeof(*qe_gc), GFP_KERNEL);
+		if (!qe_gc) {
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		spin_lock_init(&qe_gc->lock);
+
+		mm_gc = &qe_gc->mm_gc;
+		gc = &mm_gc->gc;
+
+		mm_gc->save_regs = qe_gpio_save_regs;
+		gc->ngpio = QE_PIO_PINS;
+		gc->direction_input = qe_gpio_dir_in;
+		gc->direction_output = qe_gpio_dir_out;
+		gc->get = qe_gpio_get;
+		gc->set = qe_gpio_set;
+
+		ret = of_mm_gpiochip_add(np, mm_gc);
+		if (ret)
+			goto err;
+		continue;
+err:
+		pr_err("%s: registration failed with status %d\n",
+		       np->full_name, ret);
+		kfree(qe_gc);
+		/* try others anyway */
+	}
+	return 0;
+}
+arch_initcall(qe_add_gpiochips);
diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c
new file mode 100644
index 000000000000..709fc63809e5
--- /dev/null
+++ b/drivers/soc/fsl/qe/qe.c
@@ -0,0 +1,719 @@
+/*
+ * Copyright (C) 2006-2010 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Authors: 	Shlomi Gridish <gridish@freescale.com>
+ * 		Li Yang <leoli@freescale.com>
+ * Based on cpm2_common.c from Dan Malek (dmalek@jlc.net)
+ *
+ * Description:
+ * General Purpose functions for the global management of the
+ * QUICC Engine (QE).
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/crc32.h>
+#include <linux/mod_devicetable.h>
+#include <linux/of_platform.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+#include <asm/prom.h>
+#include <asm/rheap.h>
+
+static void qe_snums_init(void);
+static int qe_sdma_init(void);
+
+static DEFINE_SPINLOCK(qe_lock);
+DEFINE_SPINLOCK(cmxgcr_lock);
+EXPORT_SYMBOL(cmxgcr_lock);
+
+/* QE snum state */
+enum qe_snum_state {
+	QE_SNUM_STATE_USED,
+	QE_SNUM_STATE_FREE
+};
+
+/* QE snum */
+struct qe_snum {
+	u8 num;
+	enum qe_snum_state state;
+};
+
+/* We allocate this here because it is used almost exclusively for
+ * the communication processor devices.
+ */
+struct qe_immap __iomem *qe_immr;
+EXPORT_SYMBOL(qe_immr);
+
+static struct qe_snum snums[QE_NUM_OF_SNUM];	/* Dynamically allocated SNUMs */
+static unsigned int qe_num_of_snum;
+
+static phys_addr_t qebase = -1;
+
+phys_addr_t get_qe_base(void)
+{
+	struct device_node *qe;
+	int size;
+	const u32 *prop;
+
+	if (qebase != -1)
+		return qebase;
+
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
+		qe = of_find_node_by_type(NULL, "qe");
+		if (!qe)
+			return qebase;
+	}
+
+	prop = of_get_property(qe, "reg", &size);
+	if (prop && size >= sizeof(*prop))
+		qebase = of_translate_address(qe, prop);
+	of_node_put(qe);
+
+	return qebase;
+}
+
+EXPORT_SYMBOL(get_qe_base);
+
+void qe_reset(void)
+{
+	if (qe_immr == NULL)
+		qe_immr = ioremap(get_qe_base(), QE_IMMAP_SIZE);
+
+	qe_snums_init();
+
+	qe_issue_cmd(QE_RESET, QE_CR_SUBBLOCK_INVALID,
+		     QE_CR_PROTOCOL_UNSPECIFIED, 0);
+
+	/* Reclaim the MURAM memory for our use. */
+	qe_muram_init();
+
+	if (qe_sdma_init())
+		panic("sdma init failed!");
+}
+
+int qe_issue_cmd(u32 cmd, u32 device, u8 mcn_protocol, u32 cmd_input)
+{
+	unsigned long flags;
+	u8 mcn_shift = 0, dev_shift = 0;
+	u32 ret;
+
+	spin_lock_irqsave(&qe_lock, flags);
+	if (cmd == QE_RESET) {
+		out_be32(&qe_immr->cp.cecr, (u32) (cmd | QE_CR_FLG));
+	} else {
+		if (cmd == QE_ASSIGN_PAGE) {
+			/* Here device is the SNUM, not sub-block */
+			dev_shift = QE_CR_SNUM_SHIFT;
+		} else if (cmd == QE_ASSIGN_RISC) {
+			/* Here device is the SNUM, and mcnProtocol is
+			 * e_QeCmdRiscAssignment value */
+			dev_shift = QE_CR_SNUM_SHIFT;
+			mcn_shift = QE_CR_MCN_RISC_ASSIGN_SHIFT;
+		} else {
+			if (device == QE_CR_SUBBLOCK_USB)
+				mcn_shift = QE_CR_MCN_USB_SHIFT;
+			else
+				mcn_shift = QE_CR_MCN_NORMAL_SHIFT;
+		}
+
+		out_be32(&qe_immr->cp.cecdr, cmd_input);
+		out_be32(&qe_immr->cp.cecr,
+			 (cmd | QE_CR_FLG | ((u32) device << dev_shift) | (u32)
+			  mcn_protocol << mcn_shift));
+	}
+
+	/* wait for the QE_CR_FLG to clear */
+	ret = spin_event_timeout((in_be32(&qe_immr->cp.cecr) & QE_CR_FLG) == 0,
+			   100, 0);
+	/* On timeout (e.g. failure), the expression will be false (ret == 0),
+	   otherwise it will be true (ret == 1). */
+	spin_unlock_irqrestore(&qe_lock, flags);
+
+	return ret == 1;
+}
+EXPORT_SYMBOL(qe_issue_cmd);
+
+/* Set a baud rate generator. This needs lots of work. There are
+ * 16 BRGs, which can be connected to the QE channels or output
+ * as clocks. The BRGs are in two different block of internal
+ * memory mapped space.
+ * The BRG clock is the QE clock divided by 2.
+ * It was set up long ago during the initial boot phase and is
+ * is given to us.
+ * Baud rate clocks are zero-based in the driver code (as that maps
+ * to port numbers). Documentation uses 1-based numbering.
+ */
+static unsigned int brg_clk = 0;
+
+unsigned int qe_get_brg_clk(void)
+{
+	struct device_node *qe;
+	int size;
+	const u32 *prop;
+
+	if (brg_clk)
+		return brg_clk;
+
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
+		qe = of_find_node_by_type(NULL, "qe");
+		if (!qe)
+			return brg_clk;
+	}
+
+	prop = of_get_property(qe, "brg-frequency", &size);
+	if (prop && size == sizeof(*prop))
+		brg_clk = *prop;
+
+	of_node_put(qe);
+
+	return brg_clk;
+}
+EXPORT_SYMBOL(qe_get_brg_clk);
+
+/* Program the BRG to the given sampling rate and multiplier
+ *
+ * @brg: the BRG, QE_BRG1 - QE_BRG16
+ * @rate: the desired sampling rate
+ * @multiplier: corresponds to the value programmed in GUMR_L[RDCR] or
+ * GUMR_L[TDCR].  E.g., if this BRG is the RX clock, and GUMR_L[RDCR]=01,
+ * then 'multiplier' should be 8.
+ */
+int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier)
+{
+	u32 divisor, tempval;
+	u32 div16 = 0;
+
+	if ((brg < QE_BRG1) || (brg > QE_BRG16))
+		return -EINVAL;
+
+	divisor = qe_get_brg_clk() / (rate * multiplier);
+
+	if (divisor > QE_BRGC_DIVISOR_MAX + 1) {
+		div16 = QE_BRGC_DIV16;
+		divisor /= 16;
+	}
+
+	/* Errata QE_General4, which affects some MPC832x and MPC836x SOCs, says
+	   that the BRG divisor must be even if you're not using divide-by-16
+	   mode. */
+	if (!div16 && (divisor & 1) && (divisor > 3))
+		divisor++;
+
+	tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) |
+		QE_BRGC_ENABLE | div16;
+
+	out_be32(&qe_immr->brg.brgc[brg - QE_BRG1], tempval);
+
+	return 0;
+}
+EXPORT_SYMBOL(qe_setbrg);
+
+/* Convert a string to a QE clock source enum
+ *
+ * This function takes a string, typically from a property in the device
+ * tree, and returns the corresponding "enum qe_clock" value.
+*/
+enum qe_clock qe_clock_source(const char *source)
+{
+	unsigned int i;
+
+	if (strcasecmp(source, "none") == 0)
+		return QE_CLK_NONE;
+
+	if (strncasecmp(source, "brg", 3) == 0) {
+		i = simple_strtoul(source + 3, NULL, 10);
+		if ((i >= 1) && (i <= 16))
+			return (QE_BRG1 - 1) + i;
+		else
+			return QE_CLK_DUMMY;
+	}
+
+	if (strncasecmp(source, "clk", 3) == 0) {
+		i = simple_strtoul(source + 3, NULL, 10);
+		if ((i >= 1) && (i <= 24))
+			return (QE_CLK1 - 1) + i;
+		else
+			return QE_CLK_DUMMY;
+	}
+
+	return QE_CLK_DUMMY;
+}
+EXPORT_SYMBOL(qe_clock_source);
+
+/* Initialize SNUMs (thread serial numbers) according to
+ * QE Module Control chapter, SNUM table
+ */
+static void qe_snums_init(void)
+{
+	int i;
+	static const u8 snum_init_76[] = {
+		0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D,
+		0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89,
+		0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9,
+		0xD8, 0xD9, 0xE8, 0xE9, 0x44, 0x45, 0x4C, 0x4D,
+		0x54, 0x55, 0x5C, 0x5D, 0x64, 0x65, 0x6C, 0x6D,
+		0x74, 0x75, 0x7C, 0x7D, 0x84, 0x85, 0x8C, 0x8D,
+		0x94, 0x95, 0x9C, 0x9D, 0xA4, 0xA5, 0xAC, 0xAD,
+		0xB4, 0xB5, 0xBC, 0xBD, 0xC4, 0xC5, 0xCC, 0xCD,
+		0xD4, 0xD5, 0xDC, 0xDD, 0xE4, 0xE5, 0xEC, 0xED,
+		0xF4, 0xF5, 0xFC, 0xFD,
+	};
+	static const u8 snum_init_46[] = {
+		0x04, 0x05, 0x0C, 0x0D, 0x14, 0x15, 0x1C, 0x1D,
+		0x24, 0x25, 0x2C, 0x2D, 0x34, 0x35, 0x88, 0x89,
+		0x98, 0x99, 0xA8, 0xA9, 0xB8, 0xB9, 0xC8, 0xC9,
+		0xD8, 0xD9, 0xE8, 0xE9, 0x08, 0x09, 0x18, 0x19,
+		0x28, 0x29, 0x38, 0x39, 0x48, 0x49, 0x58, 0x59,
+		0x68, 0x69, 0x78, 0x79, 0x80, 0x81,
+	};
+	static const u8 *snum_init;
+
+	qe_num_of_snum = qe_get_num_of_snums();
+
+	if (qe_num_of_snum == 76)
+		snum_init = snum_init_76;
+	else
+		snum_init = snum_init_46;
+
+	for (i = 0; i < qe_num_of_snum; i++) {
+		snums[i].num = snum_init[i];
+		snums[i].state = QE_SNUM_STATE_FREE;
+	}
+}
+
+int qe_get_snum(void)
+{
+	unsigned long flags;
+	int snum = -EBUSY;
+	int i;
+
+	spin_lock_irqsave(&qe_lock, flags);
+	for (i = 0; i < qe_num_of_snum; i++) {
+		if (snums[i].state == QE_SNUM_STATE_FREE) {
+			snums[i].state = QE_SNUM_STATE_USED;
+			snum = snums[i].num;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&qe_lock, flags);
+
+	return snum;
+}
+EXPORT_SYMBOL(qe_get_snum);
+
+void qe_put_snum(u8 snum)
+{
+	int i;
+
+	for (i = 0; i < qe_num_of_snum; i++) {
+		if (snums[i].num == snum) {
+			snums[i].state = QE_SNUM_STATE_FREE;
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL(qe_put_snum);
+
+static int qe_sdma_init(void)
+{
+	struct sdma __iomem *sdma = &qe_immr->sdma;
+	static unsigned long sdma_buf_offset = (unsigned long)-ENOMEM;
+
+	if (!sdma)
+		return -ENODEV;
+
+	/* allocate 2 internal temporary buffers (512 bytes size each) for
+	 * the SDMA */
+	if (IS_ERR_VALUE(sdma_buf_offset)) {
+		sdma_buf_offset = qe_muram_alloc(512 * 2, 4096);
+		if (IS_ERR_VALUE(sdma_buf_offset))
+			return -ENOMEM;
+	}
+
+	out_be32(&sdma->sdebcr, (u32) sdma_buf_offset & QE_SDEBCR_BA_MASK);
+ 	out_be32(&sdma->sdmr, (QE_SDMR_GLB_1_MSK |
+ 					(0x1 << QE_SDMR_CEN_SHIFT)));
+
+	return 0;
+}
+
+/* The maximum number of RISCs we support */
+#define MAX_QE_RISC     4
+
+/* Firmware information stored here for qe_get_firmware_info() */
+static struct qe_firmware_info qe_firmware_info;
+
+/*
+ * Set to 1 if QE firmware has been uploaded, and therefore
+ * qe_firmware_info contains valid data.
+ */
+static int qe_firmware_uploaded;
+
+/*
+ * Upload a QE microcode
+ *
+ * This function is a worker function for qe_upload_firmware().  It does
+ * the actual uploading of the microcode.
+ */
+static void qe_upload_microcode(const void *base,
+	const struct qe_microcode *ucode)
+{
+	const __be32 *code = base + be32_to_cpu(ucode->code_offset);
+	unsigned int i;
+
+	if (ucode->major || ucode->minor || ucode->revision)
+		printk(KERN_INFO "qe-firmware: "
+			"uploading microcode '%s' version %u.%u.%u\n",
+			ucode->id, ucode->major, ucode->minor, ucode->revision);
+	else
+		printk(KERN_INFO "qe-firmware: "
+			"uploading microcode '%s'\n", ucode->id);
+
+	/* Use auto-increment */
+	out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
+		QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
+
+	for (i = 0; i < be32_to_cpu(ucode->count); i++)
+		out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
+	
+	/* Set I-RAM Ready Register */
+	out_be32(&qe_immr->iram.iready, be32_to_cpu(QE_IRAM_READY));
+}
+
+/*
+ * Upload a microcode to the I-RAM at a specific address.
+ *
+ * See Documentation/powerpc/qe_firmware.txt for information on QE microcode
+ * uploading.
+ *
+ * Currently, only version 1 is supported, so the 'version' field must be
+ * set to 1.
+ *
+ * The SOC model and revision are not validated, they are only displayed for
+ * informational purposes.
+ *
+ * 'calc_size' is the calculated size, in bytes, of the firmware structure and
+ * all of the microcode structures, minus the CRC.
+ *
+ * 'length' is the size that the structure says it is, including the CRC.
+ */
+int qe_upload_firmware(const struct qe_firmware *firmware)
+{
+	unsigned int i;
+	unsigned int j;
+	u32 crc;
+	size_t calc_size = sizeof(struct qe_firmware);
+	size_t length;
+	const struct qe_header *hdr;
+
+	if (!firmware) {
+		printk(KERN_ERR "qe-firmware: invalid pointer\n");
+		return -EINVAL;
+	}
+
+	hdr = &firmware->header;
+	length = be32_to_cpu(hdr->length);
+
+	/* Check the magic */
+	if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
+	    (hdr->magic[2] != 'F')) {
+		printk(KERN_ERR "qe-firmware: not a microcode\n");
+		return -EPERM;
+	}
+
+	/* Check the version */
+	if (hdr->version != 1) {
+		printk(KERN_ERR "qe-firmware: unsupported version\n");
+		return -EPERM;
+	}
+
+	/* Validate some of the fields */
+	if ((firmware->count < 1) || (firmware->count > MAX_QE_RISC)) {
+		printk(KERN_ERR "qe-firmware: invalid data\n");
+		return -EINVAL;
+	}
+
+	/* Validate the length and check if there's a CRC */
+	calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
+
+	for (i = 0; i < firmware->count; i++)
+		/*
+		 * For situations where the second RISC uses the same microcode
+		 * as the first, the 'code_offset' and 'count' fields will be
+		 * zero, so it's okay to add those.
+		 */
+		calc_size += sizeof(__be32) *
+			be32_to_cpu(firmware->microcode[i].count);
+
+	/* Validate the length */
+	if (length != calc_size + sizeof(__be32)) {
+		printk(KERN_ERR "qe-firmware: invalid length\n");
+		return -EPERM;
+	}
+
+	/* Validate the CRC */
+	crc = be32_to_cpu(*(__be32 *)((void *)firmware + calc_size));
+	if (crc != crc32(0, firmware, calc_size)) {
+		printk(KERN_ERR "qe-firmware: firmware CRC is invalid\n");
+		return -EIO;
+	}
+
+	/*
+	 * If the microcode calls for it, split the I-RAM.
+	 */
+	if (!firmware->split)
+		setbits16(&qe_immr->cp.cercr, QE_CP_CERCR_CIR);
+
+	if (firmware->soc.model)
+		printk(KERN_INFO
+			"qe-firmware: firmware '%s' for %u V%u.%u\n",
+			firmware->id, be16_to_cpu(firmware->soc.model),
+			firmware->soc.major, firmware->soc.minor);
+	else
+		printk(KERN_INFO "qe-firmware: firmware '%s'\n",
+			firmware->id);
+
+	/*
+	 * The QE only supports one microcode per RISC, so clear out all the
+	 * saved microcode information and put in the new.
+	 */
+	memset(&qe_firmware_info, 0, sizeof(qe_firmware_info));
+	strlcpy(qe_firmware_info.id, firmware->id, sizeof(qe_firmware_info.id));
+	qe_firmware_info.extended_modes = firmware->extended_modes;
+	memcpy(qe_firmware_info.vtraps, firmware->vtraps,
+		sizeof(firmware->vtraps));
+
+	/* Loop through each microcode. */
+	for (i = 0; i < firmware->count; i++) {
+		const struct qe_microcode *ucode = &firmware->microcode[i];
+
+		/* Upload a microcode if it's present */
+		if (ucode->code_offset)
+			qe_upload_microcode(firmware, ucode);
+
+		/* Program the traps for this processor */
+		for (j = 0; j < 16; j++) {
+			u32 trap = be32_to_cpu(ucode->traps[j]);
+
+			if (trap)
+				out_be32(&qe_immr->rsp[i].tibcr[j], trap);
+		}
+
+		/* Enable traps */
+		out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
+	}
+
+	qe_firmware_uploaded = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(qe_upload_firmware);
+
+/*
+ * Get info on the currently-loaded firmware
+ *
+ * This function also checks the device tree to see if the boot loader has
+ * uploaded a firmware already.
+ */
+struct qe_firmware_info *qe_get_firmware_info(void)
+{
+	static int initialized;
+	struct property *prop;
+	struct device_node *qe;
+	struct device_node *fw = NULL;
+	const char *sprop;
+	unsigned int i;
+
+	/*
+	 * If we haven't checked yet, and a driver hasn't uploaded a firmware
+	 * yet, then check the device tree for information.
+	 */
+	if (qe_firmware_uploaded)
+		return &qe_firmware_info;
+
+	if (initialized)
+		return NULL;
+
+	initialized = 1;
+
+	/*
+	 * Newer device trees have an "fsl,qe" compatible property for the QE
+	 * node, but we still need to support older device trees.
+	*/
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
+		qe = of_find_node_by_type(NULL, "qe");
+		if (!qe)
+			return NULL;
+	}
+
+	/* Find the 'firmware' child node */
+	for_each_child_of_node(qe, fw) {
+		if (strcmp(fw->name, "firmware") == 0)
+			break;
+	}
+
+	of_node_put(qe);
+
+	/* Did we find the 'firmware' node? */
+	if (!fw)
+		return NULL;
+
+	qe_firmware_uploaded = 1;
+
+	/* Copy the data into qe_firmware_info*/
+	sprop = of_get_property(fw, "id", NULL);
+	if (sprop)
+		strlcpy(qe_firmware_info.id, sprop,
+			sizeof(qe_firmware_info.id));
+
+	prop = of_find_property(fw, "extended-modes", NULL);
+	if (prop && (prop->length == sizeof(u64))) {
+		const u64 *iprop = prop->value;
+
+		qe_firmware_info.extended_modes = *iprop;
+	}
+
+	prop = of_find_property(fw, "virtual-traps", NULL);
+	if (prop && (prop->length == 32)) {
+		const u32 *iprop = prop->value;
+
+		for (i = 0; i < ARRAY_SIZE(qe_firmware_info.vtraps); i++)
+			qe_firmware_info.vtraps[i] = iprop[i];
+	}
+
+	of_node_put(fw);
+
+	return &qe_firmware_info;
+}
+EXPORT_SYMBOL(qe_get_firmware_info);
+
+unsigned int qe_get_num_of_risc(void)
+{
+	struct device_node *qe;
+	int size;
+	unsigned int num_of_risc = 0;
+	const u32 *prop;
+
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
+		/* Older devices trees did not have an "fsl,qe"
+		 * compatible property, so we need to look for
+		 * the QE node by name.
+		 */
+		qe = of_find_node_by_type(NULL, "qe");
+		if (!qe)
+			return num_of_risc;
+	}
+
+	prop = of_get_property(qe, "fsl,qe-num-riscs", &size);
+	if (prop && size == sizeof(*prop))
+		num_of_risc = *prop;
+
+	of_node_put(qe);
+
+	return num_of_risc;
+}
+EXPORT_SYMBOL(qe_get_num_of_risc);
+
+unsigned int qe_get_num_of_snums(void)
+{
+	struct device_node *qe;
+	int size;
+	unsigned int num_of_snums;
+	const u32 *prop;
+
+	num_of_snums = 28; /* The default number of snum for threads is 28 */
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
+		/* Older devices trees did not have an "fsl,qe"
+		 * compatible property, so we need to look for
+		 * the QE node by name.
+		 */
+		qe = of_find_node_by_type(NULL, "qe");
+		if (!qe)
+			return num_of_snums;
+	}
+
+	prop = of_get_property(qe, "fsl,qe-num-snums", &size);
+	if (prop && size == sizeof(*prop)) {
+		num_of_snums = *prop;
+		if ((num_of_snums < 28) || (num_of_snums > QE_NUM_OF_SNUM)) {
+			/* No QE ever has fewer than 28 SNUMs */
+			pr_err("QE: number of snum is invalid\n");
+			of_node_put(qe);
+			return -EINVAL;
+		}
+	}
+
+	of_node_put(qe);
+
+	return num_of_snums;
+}
+EXPORT_SYMBOL(qe_get_num_of_snums);
+
+static int __init qe_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!np)
+		return -ENODEV;
+	qe_reset();
+	of_node_put(np);
+	return 0;
+}
+subsys_initcall(qe_init);
+
+#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx)
+static int qe_resume(struct platform_device *ofdev)
+{
+	if (!qe_alive_during_sleep())
+		qe_reset();
+	return 0;
+}
+
+static int qe_probe(struct platform_device *ofdev)
+{
+	return 0;
+}
+
+static const struct of_device_id qe_ids[] = {
+	{ .compatible = "fsl,qe", },
+	{ },
+};
+
+static struct platform_driver qe_driver = {
+	.driver = {
+		.name = "fsl-qe",
+		.of_match_table = qe_ids,
+	},
+	.probe = qe_probe,
+	.resume = qe_resume,
+};
+
+static int __init qe_drv_init(void)
+{
+	return platform_driver_register(&qe_driver);
+}
+device_initcall(qe_drv_init);
+#endif /* defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx) */
diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c
new file mode 100644
index 000000000000..419fa5b7be4d
--- /dev/null
+++ b/drivers/soc/fsl/qe/qe_common.c
@@ -0,0 +1,235 @@
+/*
+ * Common CPM code
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright 2007-2008,2010 Freescale Semiconductor, Inc.
+ *
+ * Some parts derived from commproc.c/cpm2_common.c, which is:
+ * Copyright (c) 1997 Dan error_act (dmalek@jlc.net)
+ * Copyright (c) 1999-2001 Dan Malek <dan@embeddedalley.com>
+ * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com)
+ * 2006 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ */
+#include <linux/genalloc.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/of_device.h>
+#include <linux/spinlock.h>
+#include <linux/export.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <soc/fsl/qe/qe.h>
+
+static struct gen_pool *muram_pool;
+static spinlock_t cpm_muram_lock;
+static u8 __iomem *muram_vbase;
+static phys_addr_t muram_pbase;
+
+struct muram_block {
+	struct list_head head;
+	unsigned long start;
+	int size;
+};
+
+static LIST_HEAD(muram_block_list);
+
+/* max address size we deal with */
+#define OF_MAX_ADDR_CELLS	4
+#define GENPOOL_OFFSET		(4096 * 8)
+
+int cpm_muram_init(void)
+{
+	struct device_node *np;
+	struct resource r;
+	u32 zero[OF_MAX_ADDR_CELLS] = {};
+	resource_size_t max = 0;
+	int i = 0;
+	int ret = 0;
+
+	if (muram_pbase)
+		return 0;
+
+	spin_lock_init(&cpm_muram_lock);
+	np = of_find_compatible_node(NULL, NULL, "fsl,cpm-muram-data");
+	if (!np) {
+		/* try legacy bindings */
+		np = of_find_node_by_name(NULL, "data-only");
+		if (!np) {
+			pr_err("Cannot find CPM muram data node");
+			ret = -ENODEV;
+			goto out_muram;
+		}
+	}
+
+	muram_pool = gen_pool_create(0, -1);
+	muram_pbase = of_translate_address(np, zero);
+	if (muram_pbase == (phys_addr_t)OF_BAD_ADDR) {
+		pr_err("Cannot translate zero through CPM muram node");
+		ret = -ENODEV;
+		goto out_pool;
+	}
+
+	while (of_address_to_resource(np, i++, &r) == 0) {
+		if (r.end > max)
+			max = r.end;
+		ret = gen_pool_add(muram_pool, r.start - muram_pbase +
+				   GENPOOL_OFFSET, resource_size(&r), -1);
+		if (ret) {
+			pr_err("QE: couldn't add muram to pool!\n");
+			goto out_pool;
+		}
+	}
+
+	muram_vbase = ioremap(muram_pbase, max - muram_pbase + 1);
+	if (!muram_vbase) {
+		pr_err("Cannot map QE muram");
+		ret = -ENOMEM;
+		goto out_pool;
+	}
+	goto out_muram;
+out_pool:
+	gen_pool_destroy(muram_pool);
+out_muram:
+	of_node_put(np);
+	return ret;
+}
+
+/*
+ * cpm_muram_alloc - allocate the requested size worth of multi-user ram
+ * @size: number of bytes to allocate
+ * @align: requested alignment, in bytes
+ *
+ * This function returns an offset into the muram area.
+ * Use cpm_dpram_addr() to get the virtual address of the area.
+ * Use cpm_muram_free() to free the allocation.
+ */
+unsigned long cpm_muram_alloc(unsigned long size, unsigned long align)
+{
+	unsigned long start;
+	unsigned long flags;
+	struct genpool_data_align muram_pool_data;
+
+	spin_lock_irqsave(&cpm_muram_lock, flags);
+	muram_pool_data.align = align;
+	start = cpm_muram_alloc_common(size, gen_pool_first_fit_align,
+				       &muram_pool_data);
+	spin_unlock_irqrestore(&cpm_muram_lock, flags);
+	return start;
+}
+EXPORT_SYMBOL(cpm_muram_alloc);
+
+/**
+ * cpm_muram_free - free a chunk of multi-user ram
+ * @offset: The beginning of the chunk as returned by cpm_muram_alloc().
+ */
+int cpm_muram_free(unsigned long offset)
+{
+	unsigned long flags;
+	int size;
+	struct muram_block *tmp;
+
+	size = 0;
+	spin_lock_irqsave(&cpm_muram_lock, flags);
+	list_for_each_entry(tmp, &muram_block_list, head) {
+		if (tmp->start == offset) {
+			size = tmp->size;
+			list_del(&tmp->head);
+			kfree(tmp);
+			break;
+		}
+	}
+	gen_pool_free(muram_pool, offset + GENPOOL_OFFSET, size);
+	spin_unlock_irqrestore(&cpm_muram_lock, flags);
+	return size;
+}
+EXPORT_SYMBOL(cpm_muram_free);
+
+/*
+ * cpm_muram_alloc_fixed - reserve a specific region of multi-user ram
+ * @offset: offset of allocation start address
+ * @size: number of bytes to allocate
+ * This function returns an offset into the muram area
+ * Use cpm_dpram_addr() to get the virtual address of the area.
+ * Use cpm_muram_free() to free the allocation.
+ */
+unsigned long cpm_muram_alloc_fixed(unsigned long offset, unsigned long size)
+{
+	unsigned long start;
+	unsigned long flags;
+	struct genpool_data_fixed muram_pool_data_fixed;
+
+	spin_lock_irqsave(&cpm_muram_lock, flags);
+	muram_pool_data_fixed.offset = offset + GENPOOL_OFFSET;
+	start = cpm_muram_alloc_common(size, gen_pool_fixed_alloc,
+				       &muram_pool_data_fixed);
+	spin_unlock_irqrestore(&cpm_muram_lock, flags);
+	return start;
+}
+EXPORT_SYMBOL(cpm_muram_alloc_fixed);
+
+/*
+ * cpm_muram_alloc_common - cpm_muram_alloc common code
+ * @size: number of bytes to allocate
+ * @algo: algorithm for alloc.
+ * @data: data for genalloc's algorithm.
+ *
+ * This function returns an offset into the muram area.
+ */
+unsigned long cpm_muram_alloc_common(unsigned long size, genpool_algo_t algo,
+				     void *data)
+{
+	struct muram_block *entry;
+	unsigned long start;
+
+	start = gen_pool_alloc_algo(muram_pool, size, algo, data);
+	if (!start)
+		goto out2;
+	start = start - GENPOOL_OFFSET;
+	memset_io(cpm_muram_addr(start), 0, size);
+	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		goto out1;
+	entry->start = start;
+	entry->size = size;
+	list_add(&entry->head, &muram_block_list);
+
+	return start;
+out1:
+	gen_pool_free(muram_pool, start, size);
+out2:
+	return (unsigned long)-ENOMEM;
+}
+
+/**
+ * cpm_muram_addr - turn a muram offset into a virtual address
+ * @offset: muram offset to convert
+ */
+void __iomem *cpm_muram_addr(unsigned long offset)
+{
+	return muram_vbase + offset;
+}
+EXPORT_SYMBOL(cpm_muram_addr);
+
+unsigned long cpm_muram_offset(void __iomem *addr)
+{
+	return addr - (void __iomem *)muram_vbase;
+}
+EXPORT_SYMBOL(cpm_muram_offset);
+
+/**
+ * cpm_muram_dma - turn a muram virtual address into a DMA address
+ * @offset: virtual address from cpm_muram_addr() to convert
+ */
+dma_addr_t cpm_muram_dma(void __iomem *addr)
+{
+	return muram_pbase + ((u8 __iomem *)addr - muram_vbase);
+}
+EXPORT_SYMBOL(cpm_muram_dma);
diff --git a/drivers/soc/fsl/qe/qe_ic.c b/drivers/soc/fsl/qe/qe_ic.c
new file mode 100644
index 000000000000..b77d01ff8330
--- /dev/null
+++ b/drivers/soc/fsl/qe/qe_ic.c
@@ -0,0 +1,503 @@
+/*
+ * arch/powerpc/sysdev/qe_lib/qe_ic.c
+ *
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.  All rights reserved.
+ *
+ * Author: Li Yang <leoli@freescale.com>
+ * Based on code from Shlomi Gridish <gridish@freescale.com>
+ *
+ * QUICC ENGINE Interrupt Controller
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <soc/fsl/qe/qe_ic.h>
+
+#include "qe_ic.h"
+
+static DEFINE_RAW_SPINLOCK(qe_ic_lock);
+
+static struct qe_ic_info qe_ic_info[] = {
+	[1] = {
+	       .mask = 0x00008000,
+	       .mask_reg = QEIC_CIMR,
+	       .pri_code = 0,
+	       .pri_reg = QEIC_CIPWCC,
+	       },
+	[2] = {
+	       .mask = 0x00004000,
+	       .mask_reg = QEIC_CIMR,
+	       .pri_code = 1,
+	       .pri_reg = QEIC_CIPWCC,
+	       },
+	[3] = {
+	       .mask = 0x00002000,
+	       .mask_reg = QEIC_CIMR,
+	       .pri_code = 2,
+	       .pri_reg = QEIC_CIPWCC,
+	       },
+	[10] = {
+		.mask = 0x00000040,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 1,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[11] = {
+		.mask = 0x00000020,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 2,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[12] = {
+		.mask = 0x00000010,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 3,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[13] = {
+		.mask = 0x00000008,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 4,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[14] = {
+		.mask = 0x00000004,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 5,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[15] = {
+		.mask = 0x00000002,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 6,
+		.pri_reg = QEIC_CIPZCC,
+		},
+	[20] = {
+		.mask = 0x10000000,
+		.mask_reg = QEIC_CRIMR,
+		.pri_code = 3,
+		.pri_reg = QEIC_CIPRTA,
+		},
+	[25] = {
+		.mask = 0x00800000,
+		.mask_reg = QEIC_CRIMR,
+		.pri_code = 0,
+		.pri_reg = QEIC_CIPRTB,
+		},
+	[26] = {
+		.mask = 0x00400000,
+		.mask_reg = QEIC_CRIMR,
+		.pri_code = 1,
+		.pri_reg = QEIC_CIPRTB,
+		},
+	[27] = {
+		.mask = 0x00200000,
+		.mask_reg = QEIC_CRIMR,
+		.pri_code = 2,
+		.pri_reg = QEIC_CIPRTB,
+		},
+	[28] = {
+		.mask = 0x00100000,
+		.mask_reg = QEIC_CRIMR,
+		.pri_code = 3,
+		.pri_reg = QEIC_CIPRTB,
+		},
+	[32] = {
+		.mask = 0x80000000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 0,
+		.pri_reg = QEIC_CIPXCC,
+		},
+	[33] = {
+		.mask = 0x40000000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 1,
+		.pri_reg = QEIC_CIPXCC,
+		},
+	[34] = {
+		.mask = 0x20000000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 2,
+		.pri_reg = QEIC_CIPXCC,
+		},
+	[35] = {
+		.mask = 0x10000000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 3,
+		.pri_reg = QEIC_CIPXCC,
+		},
+	[36] = {
+		.mask = 0x08000000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 4,
+		.pri_reg = QEIC_CIPXCC,
+		},
+	[40] = {
+		.mask = 0x00800000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 0,
+		.pri_reg = QEIC_CIPYCC,
+		},
+	[41] = {
+		.mask = 0x00400000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 1,
+		.pri_reg = QEIC_CIPYCC,
+		},
+	[42] = {
+		.mask = 0x00200000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 2,
+		.pri_reg = QEIC_CIPYCC,
+		},
+	[43] = {
+		.mask = 0x00100000,
+		.mask_reg = QEIC_CIMR,
+		.pri_code = 3,
+		.pri_reg = QEIC_CIPYCC,
+		},
+};
+
+static inline u32 qe_ic_read(volatile __be32  __iomem * base, unsigned int reg)
+{
+	return in_be32(base + (reg >> 2));
+}
+
+static inline void qe_ic_write(volatile __be32  __iomem * base, unsigned int reg,
+			       u32 value)
+{
+	out_be32(base + (reg >> 2), value);
+}
+
+static inline struct qe_ic *qe_ic_from_irq(unsigned int virq)
+{
+	return irq_get_chip_data(virq);
+}
+
+static inline struct qe_ic *qe_ic_from_irq_data(struct irq_data *d)
+{
+	return irq_data_get_irq_chip_data(d);
+}
+
+static void qe_ic_unmask_irq(struct irq_data *d)
+{
+	struct qe_ic *qe_ic = qe_ic_from_irq_data(d);
+	unsigned int src = irqd_to_hwirq(d);
+	unsigned long flags;
+	u32 temp;
+
+	raw_spin_lock_irqsave(&qe_ic_lock, flags);
+
+	temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
+	qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
+		    temp | qe_ic_info[src].mask);
+
+	raw_spin_unlock_irqrestore(&qe_ic_lock, flags);
+}
+
+static void qe_ic_mask_irq(struct irq_data *d)
+{
+	struct qe_ic *qe_ic = qe_ic_from_irq_data(d);
+	unsigned int src = irqd_to_hwirq(d);
+	unsigned long flags;
+	u32 temp;
+
+	raw_spin_lock_irqsave(&qe_ic_lock, flags);
+
+	temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
+	qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
+		    temp & ~qe_ic_info[src].mask);
+
+	/* Flush the above write before enabling interrupts; otherwise,
+	 * spurious interrupts will sometimes happen.  To be 100% sure
+	 * that the write has reached the device before interrupts are
+	 * enabled, the mask register would have to be read back; however,
+	 * this is not required for correctness, only to avoid wasting
+	 * time on a large number of spurious interrupts.  In testing,
+	 * a sync reduced the observed spurious interrupts to zero.
+	 */
+	mb();
+
+	raw_spin_unlock_irqrestore(&qe_ic_lock, flags);
+}
+
+static struct irq_chip qe_ic_irq_chip = {
+	.name = "QEIC",
+	.irq_unmask = qe_ic_unmask_irq,
+	.irq_mask = qe_ic_mask_irq,
+	.irq_mask_ack = qe_ic_mask_irq,
+};
+
+static int qe_ic_host_match(struct irq_domain *h, struct device_node *node,
+			    enum irq_domain_bus_token bus_token)
+{
+	/* Exact match, unless qe_ic node is NULL */
+	struct device_node *of_node = irq_domain_get_of_node(h);
+	return of_node == NULL || of_node == node;
+}
+
+static int qe_ic_host_map(struct irq_domain *h, unsigned int virq,
+			  irq_hw_number_t hw)
+{
+	struct qe_ic *qe_ic = h->host_data;
+	struct irq_chip *chip;
+
+	if (qe_ic_info[hw].mask == 0) {
+		printk(KERN_ERR "Can't map reserved IRQ\n");
+		return -EINVAL;
+	}
+	/* Default chip */
+	chip = &qe_ic->hc_irq;
+
+	irq_set_chip_data(virq, qe_ic);
+	irq_set_status_flags(virq, IRQ_LEVEL);
+
+	irq_set_chip_and_handler(virq, chip, handle_level_irq);
+
+	return 0;
+}
+
+static const struct irq_domain_ops qe_ic_host_ops = {
+	.match = qe_ic_host_match,
+	.map = qe_ic_host_map,
+	.xlate = irq_domain_xlate_onetwocell,
+};
+
+/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
+unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic)
+{
+	int irq;
+
+	BUG_ON(qe_ic == NULL);
+
+	/* get the interrupt source vector. */
+	irq = qe_ic_read(qe_ic->regs, QEIC_CIVEC) >> 26;
+
+	if (irq == 0)
+		return NO_IRQ;
+
+	return irq_linear_revmap(qe_ic->irqhost, irq);
+}
+
+/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
+unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic)
+{
+	int irq;
+
+	BUG_ON(qe_ic == NULL);
+
+	/* get the interrupt source vector. */
+	irq = qe_ic_read(qe_ic->regs, QEIC_CHIVEC) >> 26;
+
+	if (irq == 0)
+		return NO_IRQ;
+
+	return irq_linear_revmap(qe_ic->irqhost, irq);
+}
+
+void __init qe_ic_init(struct device_node *node, unsigned int flags,
+		       void (*low_handler)(struct irq_desc *desc),
+		       void (*high_handler)(struct irq_desc *desc))
+{
+	struct qe_ic *qe_ic;
+	struct resource res;
+	u32 temp = 0, ret, high_active = 0;
+
+	ret = of_address_to_resource(node, 0, &res);
+	if (ret)
+		return;
+
+	qe_ic = kzalloc(sizeof(*qe_ic), GFP_KERNEL);
+	if (qe_ic == NULL)
+		return;
+
+	qe_ic->irqhost = irq_domain_add_linear(node, NR_QE_IC_INTS,
+					       &qe_ic_host_ops, qe_ic);
+	if (qe_ic->irqhost == NULL) {
+		kfree(qe_ic);
+		return;
+	}
+
+	qe_ic->regs = ioremap(res.start, resource_size(&res));
+
+	qe_ic->hc_irq = qe_ic_irq_chip;
+
+	qe_ic->virq_high = irq_of_parse_and_map(node, 0);
+	qe_ic->virq_low = irq_of_parse_and_map(node, 1);
+
+	if (qe_ic->virq_low == NO_IRQ) {
+		printk(KERN_ERR "Failed to map QE_IC low IRQ\n");
+		kfree(qe_ic);
+		return;
+	}
+
+	/* default priority scheme is grouped. If spread mode is    */
+	/* required, configure cicr accordingly.                    */
+	if (flags & QE_IC_SPREADMODE_GRP_W)
+		temp |= CICR_GWCC;
+	if (flags & QE_IC_SPREADMODE_GRP_X)
+		temp |= CICR_GXCC;
+	if (flags & QE_IC_SPREADMODE_GRP_Y)
+		temp |= CICR_GYCC;
+	if (flags & QE_IC_SPREADMODE_GRP_Z)
+		temp |= CICR_GZCC;
+	if (flags & QE_IC_SPREADMODE_GRP_RISCA)
+		temp |= CICR_GRTA;
+	if (flags & QE_IC_SPREADMODE_GRP_RISCB)
+		temp |= CICR_GRTB;
+
+	/* choose destination signal for highest priority interrupt */
+	if (flags & QE_IC_HIGH_SIGNAL) {
+		temp |= (SIGNAL_HIGH << CICR_HPIT_SHIFT);
+		high_active = 1;
+	}
+
+	qe_ic_write(qe_ic->regs, QEIC_CICR, temp);
+
+	irq_set_handler_data(qe_ic->virq_low, qe_ic);
+	irq_set_chained_handler(qe_ic->virq_low, low_handler);
+
+	if (qe_ic->virq_high != NO_IRQ &&
+			qe_ic->virq_high != qe_ic->virq_low) {
+		irq_set_handler_data(qe_ic->virq_high, qe_ic);
+		irq_set_chained_handler(qe_ic->virq_high, high_handler);
+	}
+}
+
+void qe_ic_set_highest_priority(unsigned int virq, int high)
+{
+	struct qe_ic *qe_ic = qe_ic_from_irq(virq);
+	unsigned int src = virq_to_hw(virq);
+	u32 temp = 0;
+
+	temp = qe_ic_read(qe_ic->regs, QEIC_CICR);
+
+	temp &= ~CICR_HP_MASK;
+	temp |= src << CICR_HP_SHIFT;
+
+	temp &= ~CICR_HPIT_MASK;
+	temp |= (high ? SIGNAL_HIGH : SIGNAL_LOW) << CICR_HPIT_SHIFT;
+
+	qe_ic_write(qe_ic->regs, QEIC_CICR, temp);
+}
+
+/* Set Priority level within its group, from 1 to 8 */
+int qe_ic_set_priority(unsigned int virq, unsigned int priority)
+{
+	struct qe_ic *qe_ic = qe_ic_from_irq(virq);
+	unsigned int src = virq_to_hw(virq);
+	u32 temp;
+
+	if (priority > 8 || priority == 0)
+		return -EINVAL;
+	if (src > 127)
+		return -EINVAL;
+	if (qe_ic_info[src].pri_reg == 0)
+		return -EINVAL;
+
+	temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].pri_reg);
+
+	if (priority < 4) {
+		temp &= ~(0x7 << (32 - priority * 3));
+		temp |= qe_ic_info[src].pri_code << (32 - priority * 3);
+	} else {
+		temp &= ~(0x7 << (24 - priority * 3));
+		temp |= qe_ic_info[src].pri_code << (24 - priority * 3);
+	}
+
+	qe_ic_write(qe_ic->regs, qe_ic_info[src].pri_reg, temp);
+
+	return 0;
+}
+
+/* Set a QE priority to use high irq, only priority 1~2 can use high irq */
+int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high)
+{
+	struct qe_ic *qe_ic = qe_ic_from_irq(virq);
+	unsigned int src = virq_to_hw(virq);
+	u32 temp, control_reg = QEIC_CICNR, shift = 0;
+
+	if (priority > 2 || priority == 0)
+		return -EINVAL;
+
+	switch (qe_ic_info[src].pri_reg) {
+	case QEIC_CIPZCC:
+		shift = CICNR_ZCC1T_SHIFT;
+		break;
+	case QEIC_CIPWCC:
+		shift = CICNR_WCC1T_SHIFT;
+		break;
+	case QEIC_CIPYCC:
+		shift = CICNR_YCC1T_SHIFT;
+		break;
+	case QEIC_CIPXCC:
+		shift = CICNR_XCC1T_SHIFT;
+		break;
+	case QEIC_CIPRTA:
+		shift = CRICR_RTA1T_SHIFT;
+		control_reg = QEIC_CRICR;
+		break;
+	case QEIC_CIPRTB:
+		shift = CRICR_RTB1T_SHIFT;
+		control_reg = QEIC_CRICR;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	shift += (2 - priority) * 2;
+	temp = qe_ic_read(qe_ic->regs, control_reg);
+	temp &= ~(SIGNAL_MASK << shift);
+	temp |= (high ? SIGNAL_HIGH : SIGNAL_LOW) << shift;
+	qe_ic_write(qe_ic->regs, control_reg, temp);
+
+	return 0;
+}
+
+static struct bus_type qe_ic_subsys = {
+	.name = "qe_ic",
+	.dev_name = "qe_ic",
+};
+
+static struct device device_qe_ic = {
+	.id = 0,
+	.bus = &qe_ic_subsys,
+};
+
+static int __init init_qe_ic_sysfs(void)
+{
+	int rc;
+
+	printk(KERN_DEBUG "Registering qe_ic with sysfs...\n");
+
+	rc = subsys_system_register(&qe_ic_subsys, NULL);
+	if (rc) {
+		printk(KERN_ERR "Failed registering qe_ic sys class\n");
+		return -ENODEV;
+	}
+	rc = device_register(&device_qe_ic);
+	if (rc) {
+		printk(KERN_ERR "Failed registering qe_ic sys device\n");
+		return -ENODEV;
+	}
+	return 0;
+}
+
+subsys_initcall(init_qe_ic_sysfs);
diff --git a/drivers/soc/fsl/qe/qe_ic.h b/drivers/soc/fsl/qe/qe_ic.h
new file mode 100644
index 000000000000..926a2ed42319
--- /dev/null
+++ b/drivers/soc/fsl/qe/qe_ic.h
@@ -0,0 +1,103 @@
+/*
+ * drivers/soc/fsl/qe/qe_ic.h
+ *
+ * QUICC ENGINE Interrupt Controller Header
+ *
+ * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Li Yang <leoli@freescale.com>
+ * Based on code from Shlomi Gridish <gridish@freescale.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#ifndef _POWERPC_SYSDEV_QE_IC_H
+#define _POWERPC_SYSDEV_QE_IC_H
+
+#include <soc/fsl/qe/qe_ic.h>
+
+#define NR_QE_IC_INTS		64
+
+/* QE IC registers offset */
+#define QEIC_CICR		0x00
+#define QEIC_CIVEC		0x04
+#define QEIC_CRIPNR		0x08
+#define QEIC_CIPNR		0x0c
+#define QEIC_CIPXCC		0x10
+#define QEIC_CIPYCC		0x14
+#define QEIC_CIPWCC		0x18
+#define QEIC_CIPZCC		0x1c
+#define QEIC_CIMR		0x20
+#define QEIC_CRIMR		0x24
+#define QEIC_CICNR		0x28
+#define QEIC_CIPRTA		0x30
+#define QEIC_CIPRTB		0x34
+#define QEIC_CRICR		0x3c
+#define QEIC_CHIVEC		0x60
+
+/* Interrupt priority registers */
+#define CIPCC_SHIFT_PRI0	29
+#define CIPCC_SHIFT_PRI1	26
+#define CIPCC_SHIFT_PRI2	23
+#define CIPCC_SHIFT_PRI3	20
+#define CIPCC_SHIFT_PRI4	13
+#define CIPCC_SHIFT_PRI5	10
+#define CIPCC_SHIFT_PRI6	7
+#define CIPCC_SHIFT_PRI7	4
+
+/* CICR priority modes */
+#define CICR_GWCC		0x00040000
+#define CICR_GXCC		0x00020000
+#define CICR_GYCC		0x00010000
+#define CICR_GZCC		0x00080000
+#define CICR_GRTA		0x00200000
+#define CICR_GRTB		0x00400000
+#define CICR_HPIT_SHIFT		8
+#define CICR_HPIT_MASK		0x00000300
+#define CICR_HP_SHIFT		24
+#define CICR_HP_MASK		0x3f000000
+
+/* CICNR */
+#define CICNR_WCC1T_SHIFT	20
+#define CICNR_ZCC1T_SHIFT	28
+#define CICNR_YCC1T_SHIFT	12
+#define CICNR_XCC1T_SHIFT	4
+
+/* CRICR */
+#define CRICR_RTA1T_SHIFT	20
+#define CRICR_RTB1T_SHIFT	28
+
+/* Signal indicator */
+#define SIGNAL_MASK		3
+#define SIGNAL_HIGH		2
+#define SIGNAL_LOW		0
+
+struct qe_ic {
+	/* Control registers offset */
+	volatile u32 __iomem *regs;
+
+	/* The remapper for this QEIC */
+	struct irq_domain *irqhost;
+
+	/* The "linux" controller struct */
+	struct irq_chip hc_irq;
+
+	/* VIRQ numbers of QE high/low irqs */
+	unsigned int virq_high;
+	unsigned int virq_low;
+};
+
+/*
+ * QE interrupt controller internal structure
+ */
+struct qe_ic_info {
+	u32	mask;	  /* location of this source at the QIMR register. */
+	u32	mask_reg; /* Mask register offset */
+	u8	pri_code; /* for grouped interrupts sources - the interrupt
+			     code as appears at the group priority register */
+	u32	pri_reg;  /* Group priority register offset */
+};
+
+#endif /* _POWERPC_SYSDEV_QE_IC_H */
diff --git a/drivers/soc/fsl/qe/qe_io.c b/drivers/soc/fsl/qe/qe_io.c
new file mode 100644
index 000000000000..7ae59abc7863
--- /dev/null
+++ b/drivers/soc/fsl/qe/qe_io.c
@@ -0,0 +1,192 @@
+/*
+ * arch/powerpc/sysdev/qe_lib/qe_io.c
+ *
+ * QE Parallel I/O ports configuration routines
+ *
+ * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Li Yang <LeoLi@freescale.com>
+ * Based on code from Shlomi Gridish <gridish@freescale.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+
+#include <asm/io.h>
+#include <soc/fsl/qe/qe.h>
+#include <asm/prom.h>
+#include <sysdev/fsl_soc.h>
+
+#undef DEBUG
+
+static struct qe_pio_regs __iomem *par_io;
+static int num_par_io_ports = 0;
+
+int par_io_init(struct device_node *np)
+{
+	struct resource res;
+	int ret;
+	const u32 *num_ports;
+
+	/* Map Parallel I/O ports registers */
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret)
+		return ret;
+	par_io = ioremap(res.start, resource_size(&res));
+
+	num_ports = of_get_property(np, "num-ports", NULL);
+	if (num_ports)
+		num_par_io_ports = *num_ports;
+
+	return 0;
+}
+
+void __par_io_config_pin(struct qe_pio_regs __iomem *par_io, u8 pin, int dir,
+			 int open_drain, int assignment, int has_irq)
+{
+	u32 pin_mask1bit;
+	u32 pin_mask2bits;
+	u32 new_mask2bits;
+	u32 tmp_val;
+
+	/* calculate pin location for single and 2 bits information */
+	pin_mask1bit = (u32) (1 << (QE_PIO_PINS - (pin + 1)));
+
+	/* Set open drain, if required */
+	tmp_val = in_be32(&par_io->cpodr);
+	if (open_drain)
+		out_be32(&par_io->cpodr, pin_mask1bit | tmp_val);
+	else
+		out_be32(&par_io->cpodr, ~pin_mask1bit & tmp_val);
+
+	/* define direction */
+	tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ?
+		in_be32(&par_io->cpdir2) :
+		in_be32(&par_io->cpdir1);
+
+	/* get all bits mask for 2 bit per port */
+	pin_mask2bits = (u32) (0x3 << (QE_PIO_PINS -
+				(pin % (QE_PIO_PINS / 2) + 1) * 2));
+
+	/* Get the final mask we need for the right definition */
+	new_mask2bits = (u32) (dir << (QE_PIO_PINS -
+				(pin % (QE_PIO_PINS / 2) + 1) * 2));
+
+	/* clear and set 2 bits mask */
+	if (pin > (QE_PIO_PINS / 2) - 1) {
+		out_be32(&par_io->cpdir2,
+			 ~pin_mask2bits & tmp_val);
+		tmp_val &= ~pin_mask2bits;
+		out_be32(&par_io->cpdir2, new_mask2bits | tmp_val);
+	} else {
+		out_be32(&par_io->cpdir1,
+			 ~pin_mask2bits & tmp_val);
+		tmp_val &= ~pin_mask2bits;
+		out_be32(&par_io->cpdir1, new_mask2bits | tmp_val);
+	}
+	/* define pin assignment */
+	tmp_val = (pin > (QE_PIO_PINS / 2) - 1) ?
+		in_be32(&par_io->cppar2) :
+		in_be32(&par_io->cppar1);
+
+	new_mask2bits = (u32) (assignment << (QE_PIO_PINS -
+			(pin % (QE_PIO_PINS / 2) + 1) * 2));
+	/* clear and set 2 bits mask */
+	if (pin > (QE_PIO_PINS / 2) - 1) {
+		out_be32(&par_io->cppar2,
+			 ~pin_mask2bits & tmp_val);
+		tmp_val &= ~pin_mask2bits;
+		out_be32(&par_io->cppar2, new_mask2bits | tmp_val);
+	} else {
+		out_be32(&par_io->cppar1,
+			 ~pin_mask2bits & tmp_val);
+		tmp_val &= ~pin_mask2bits;
+		out_be32(&par_io->cppar1, new_mask2bits | tmp_val);
+	}
+}
+EXPORT_SYMBOL(__par_io_config_pin);
+
+int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain,
+		      int assignment, int has_irq)
+{
+	if (!par_io || port >= num_par_io_ports)
+		return -EINVAL;
+
+	__par_io_config_pin(&par_io[port], pin, dir, open_drain, assignment,
+			    has_irq);
+	return 0;
+}
+EXPORT_SYMBOL(par_io_config_pin);
+
+int par_io_data_set(u8 port, u8 pin, u8 val)
+{
+	u32 pin_mask, tmp_val;
+
+	if (port >= num_par_io_ports)
+		return -EINVAL;
+	if (pin >= QE_PIO_PINS)
+		return -EINVAL;
+	/* calculate pin location */
+	pin_mask = (u32) (1 << (QE_PIO_PINS - 1 - pin));
+
+	tmp_val = in_be32(&par_io[port].cpdata);
+
+	if (val == 0)		/* clear */
+		out_be32(&par_io[port].cpdata, ~pin_mask & tmp_val);
+	else			/* set */
+		out_be32(&par_io[port].cpdata, pin_mask | tmp_val);
+
+	return 0;
+}
+EXPORT_SYMBOL(par_io_data_set);
+
+int par_io_of_config(struct device_node *np)
+{
+	struct device_node *pio;
+	const phandle *ph;
+	int pio_map_len;
+	const unsigned int *pio_map;
+
+	if (par_io == NULL) {
+		printk(KERN_ERR "par_io not initialized\n");
+		return -1;
+	}
+
+	ph = of_get_property(np, "pio-handle", NULL);
+	if (ph == NULL) {
+		printk(KERN_ERR "pio-handle not available\n");
+		return -1;
+	}
+
+	pio = of_find_node_by_phandle(*ph);
+
+	pio_map = of_get_property(pio, "pio-map", &pio_map_len);
+	if (pio_map == NULL) {
+		printk(KERN_ERR "pio-map is not set!\n");
+		return -1;
+	}
+	pio_map_len /= sizeof(unsigned int);
+	if ((pio_map_len % 6) != 0) {
+		printk(KERN_ERR "pio-map format wrong!\n");
+		return -1;
+	}
+
+	while (pio_map_len > 0) {
+		par_io_config_pin((u8) pio_map[0], (u8) pio_map[1],
+				(int) pio_map[2], (int) pio_map[3],
+				(int) pio_map[4], (int) pio_map[5]);
+		pio_map += 6;
+		pio_map_len -= 6;
+	}
+	of_node_put(pio);
+	return 0;
+}
+EXPORT_SYMBOL(par_io_of_config);
diff --git a/drivers/soc/fsl/qe/ucc.c b/drivers/soc/fsl/qe/ucc.c
new file mode 100644
index 000000000000..b59d3358f9bd
--- /dev/null
+++ b/drivers/soc/fsl/qe/ucc.c
@@ -0,0 +1,212 @@
+/*
+ * arch/powerpc/sysdev/qe_lib/ucc.c
+ *
+ * QE UCC API Set - UCC specific routines implementations.
+ *
+ * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Authors: 	Shlomi Gridish <gridish@freescale.com>
+ * 		Li Yang <leoli@freescale.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/stddef.h>
+#include <linux/spinlock.h>
+#include <linux/export.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+#include <soc/fsl/qe/ucc.h>
+
+int ucc_set_qe_mux_mii_mng(unsigned int ucc_num)
+{
+	unsigned long flags;
+
+	if (ucc_num > UCC_MAX_NUM - 1)
+		return -EINVAL;
+
+	spin_lock_irqsave(&cmxgcr_lock, flags);
+	clrsetbits_be32(&qe_immr->qmx.cmxgcr, QE_CMXGCR_MII_ENET_MNG,
+		ucc_num << QE_CMXGCR_MII_ENET_MNG_SHIFT);
+	spin_unlock_irqrestore(&cmxgcr_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(ucc_set_qe_mux_mii_mng);
+
+/* Configure the UCC to either Slow or Fast.
+ *
+ * A given UCC can be figured to support either "slow" devices (e.g. UART)
+ * or "fast" devices (e.g. Ethernet).
+ *
+ * 'ucc_num' is the UCC number, from 0 - 7.
+ *
+ * This function also sets the UCC_GUEMR_SET_RESERVED3 bit because that bit
+ * must always be set to 1.
+ */
+int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed)
+{
+	u8 __iomem *guemr;
+
+	/* The GUEMR register is at the same location for both slow and fast
+	   devices, so we just use uccX.slow.guemr. */
+	switch (ucc_num) {
+	case 0: guemr = &qe_immr->ucc1.slow.guemr;
+		break;
+	case 1: guemr = &qe_immr->ucc2.slow.guemr;
+		break;
+	case 2: guemr = &qe_immr->ucc3.slow.guemr;
+		break;
+	case 3: guemr = &qe_immr->ucc4.slow.guemr;
+		break;
+	case 4: guemr = &qe_immr->ucc5.slow.guemr;
+		break;
+	case 5: guemr = &qe_immr->ucc6.slow.guemr;
+		break;
+	case 6: guemr = &qe_immr->ucc7.slow.guemr;
+		break;
+	case 7: guemr = &qe_immr->ucc8.slow.guemr;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	clrsetbits_8(guemr, UCC_GUEMR_MODE_MASK,
+		UCC_GUEMR_SET_RESERVED3 | speed);
+
+	return 0;
+}
+
+static void get_cmxucr_reg(unsigned int ucc_num, __be32 __iomem **cmxucr,
+	unsigned int *reg_num, unsigned int *shift)
+{
+	unsigned int cmx = ((ucc_num & 1) << 1) + (ucc_num > 3);
+
+	*reg_num = cmx + 1;
+	*cmxucr = &qe_immr->qmx.cmxucr[cmx];
+	*shift = 16 - 8 * (ucc_num & 2);
+}
+
+int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask)
+{
+	__be32 __iomem *cmxucr;
+	unsigned int reg_num;
+	unsigned int shift;
+
+	/* check if the UCC number is in range. */
+	if (ucc_num > UCC_MAX_NUM - 1)
+		return -EINVAL;
+
+	get_cmxucr_reg(ucc_num, &cmxucr, &reg_num, &shift);
+
+	if (set)
+		setbits32(cmxucr, mask << shift);
+	else
+		clrbits32(cmxucr, mask << shift);
+
+	return 0;
+}
+
+int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
+	enum comm_dir mode)
+{
+	__be32 __iomem *cmxucr;
+	unsigned int reg_num;
+	unsigned int shift;
+	u32 clock_bits = 0;
+
+	/* check if the UCC number is in range. */
+	if (ucc_num > UCC_MAX_NUM - 1)
+		return -EINVAL;
+
+	/* The communications direction must be RX or TX */
+	if (!((mode == COMM_DIR_RX) || (mode == COMM_DIR_TX)))
+		return -EINVAL;
+
+	get_cmxucr_reg(ucc_num, &cmxucr, &reg_num, &shift);
+
+	switch (reg_num) {
+	case 1:
+		switch (clock) {
+		case QE_BRG1:	clock_bits = 1; break;
+		case QE_BRG2:	clock_bits = 2; break;
+		case QE_BRG7:	clock_bits = 3; break;
+		case QE_BRG8:	clock_bits = 4; break;
+		case QE_CLK9:	clock_bits = 5; break;
+		case QE_CLK10:	clock_bits = 6; break;
+		case QE_CLK11:	clock_bits = 7; break;
+		case QE_CLK12:	clock_bits = 8; break;
+		case QE_CLK15:	clock_bits = 9; break;
+		case QE_CLK16:	clock_bits = 10; break;
+		default: break;
+		}
+		break;
+	case 2:
+		switch (clock) {
+		case QE_BRG5:	clock_bits = 1; break;
+		case QE_BRG6:	clock_bits = 2; break;
+		case QE_BRG7:	clock_bits = 3; break;
+		case QE_BRG8:	clock_bits = 4; break;
+		case QE_CLK13:	clock_bits = 5; break;
+		case QE_CLK14:	clock_bits = 6; break;
+		case QE_CLK19:	clock_bits = 7; break;
+		case QE_CLK20:	clock_bits = 8; break;
+		case QE_CLK15:	clock_bits = 9; break;
+		case QE_CLK16:	clock_bits = 10; break;
+		default: break;
+		}
+		break;
+	case 3:
+		switch (clock) {
+		case QE_BRG9:	clock_bits = 1; break;
+		case QE_BRG10:	clock_bits = 2; break;
+		case QE_BRG15:	clock_bits = 3; break;
+		case QE_BRG16:	clock_bits = 4; break;
+		case QE_CLK3:	clock_bits = 5; break;
+		case QE_CLK4:	clock_bits = 6; break;
+		case QE_CLK17:	clock_bits = 7; break;
+		case QE_CLK18:	clock_bits = 8; break;
+		case QE_CLK7:	clock_bits = 9; break;
+		case QE_CLK8:	clock_bits = 10; break;
+		case QE_CLK16:	clock_bits = 11; break;
+		default: break;
+		}
+		break;
+	case 4:
+		switch (clock) {
+		case QE_BRG13:	clock_bits = 1; break;
+		case QE_BRG14:	clock_bits = 2; break;
+		case QE_BRG15:	clock_bits = 3; break;
+		case QE_BRG16:	clock_bits = 4; break;
+		case QE_CLK5:	clock_bits = 5; break;
+		case QE_CLK6:	clock_bits = 6; break;
+		case QE_CLK21:	clock_bits = 7; break;
+		case QE_CLK22:	clock_bits = 8; break;
+		case QE_CLK7:	clock_bits = 9; break;
+		case QE_CLK8:	clock_bits = 10; break;
+		case QE_CLK16:	clock_bits = 11; break;
+		default: break;
+		}
+		break;
+	default: break;
+	}
+
+	/* Check for invalid combination of clock and UCC number */
+	if (!clock_bits)
+		return -ENOENT;
+
+	if (mode == COMM_DIR_RX)
+		shift += 4;
+
+	clrsetbits_be32(cmxucr, QE_CMXUCR_TX_CLK_SRC_MASK << shift,
+		clock_bits << shift);
+
+	return 0;
+}
diff --git a/drivers/soc/fsl/qe/ucc_fast.c b/drivers/soc/fsl/qe/ucc_fast.c
new file mode 100644
index 000000000000..a7689310fe40
--- /dev/null
+++ b/drivers/soc/fsl/qe/ucc_fast.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Authors: 	Shlomi Gridish <gridish@freescale.com>
+ * 		Li Yang <leoli@freescale.com>
+ *
+ * Description:
+ * QE UCC Fast API Set - UCC Fast specific routines implementations.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/export.h>
+
+#include <asm/io.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+
+#include <soc/fsl/qe/ucc.h>
+#include <soc/fsl/qe/ucc_fast.h>
+
+void ucc_fast_dump_regs(struct ucc_fast_private * uccf)
+{
+	printk(KERN_INFO "UCC%u Fast registers:\n", uccf->uf_info->ucc_num);
+	printk(KERN_INFO "Base address: 0x%p\n", uccf->uf_regs);
+
+	printk(KERN_INFO "gumr  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr));
+	printk(KERN_INFO "upsmr : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr));
+	printk(KERN_INFO "utodr : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr));
+	printk(KERN_INFO "udsr  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr));
+	printk(KERN_INFO "ucce  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce));
+	printk(KERN_INFO "uccm  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm));
+	printk(KERN_INFO "uccs  : addr=0x%p, val=0x%02x\n",
+		  &uccf->uf_regs->uccs, in_8(&uccf->uf_regs->uccs));
+	printk(KERN_INFO "urfb  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb));
+	printk(KERN_INFO "urfs  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs));
+	printk(KERN_INFO "urfet : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet));
+	printk(KERN_INFO "urfset: addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfset, in_be16(&uccf->uf_regs->urfset));
+	printk(KERN_INFO "utfb  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb));
+	printk(KERN_INFO "utfs  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs));
+	printk(KERN_INFO "utfet : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet));
+	printk(KERN_INFO "utftt : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt));
+	printk(KERN_INFO "utpt  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt));
+	printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry));
+	printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n",
+		  &uccf->uf_regs->guemr, in_8(&uccf->uf_regs->guemr));
+}
+EXPORT_SYMBOL(ucc_fast_dump_regs);
+
+u32 ucc_fast_get_qe_cr_subblock(int uccf_num)
+{
+	switch (uccf_num) {
+	case 0: return QE_CR_SUBBLOCK_UCCFAST1;
+	case 1: return QE_CR_SUBBLOCK_UCCFAST2;
+	case 2: return QE_CR_SUBBLOCK_UCCFAST3;
+	case 3: return QE_CR_SUBBLOCK_UCCFAST4;
+	case 4: return QE_CR_SUBBLOCK_UCCFAST5;
+	case 5: return QE_CR_SUBBLOCK_UCCFAST6;
+	case 6: return QE_CR_SUBBLOCK_UCCFAST7;
+	case 7: return QE_CR_SUBBLOCK_UCCFAST8;
+	default: return QE_CR_SUBBLOCK_INVALID;
+	}
+}
+EXPORT_SYMBOL(ucc_fast_get_qe_cr_subblock);
+
+void ucc_fast_transmit_on_demand(struct ucc_fast_private * uccf)
+{
+	out_be16(&uccf->uf_regs->utodr, UCC_FAST_TOD);
+}
+EXPORT_SYMBOL(ucc_fast_transmit_on_demand);
+
+void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode)
+{
+	struct ucc_fast __iomem *uf_regs;
+	u32 gumr;
+
+	uf_regs = uccf->uf_regs;
+
+	/* Enable reception and/or transmission on this UCC. */
+	gumr = in_be32(&uf_regs->gumr);
+	if (mode & COMM_DIR_TX) {
+		gumr |= UCC_FAST_GUMR_ENT;
+		uccf->enabled_tx = 1;
+	}
+	if (mode & COMM_DIR_RX) {
+		gumr |= UCC_FAST_GUMR_ENR;
+		uccf->enabled_rx = 1;
+	}
+	out_be32(&uf_regs->gumr, gumr);
+}
+EXPORT_SYMBOL(ucc_fast_enable);
+
+void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode)
+{
+	struct ucc_fast __iomem *uf_regs;
+	u32 gumr;
+
+	uf_regs = uccf->uf_regs;
+
+	/* Disable reception and/or transmission on this UCC. */
+	gumr = in_be32(&uf_regs->gumr);
+	if (mode & COMM_DIR_TX) {
+		gumr &= ~UCC_FAST_GUMR_ENT;
+		uccf->enabled_tx = 0;
+	}
+	if (mode & COMM_DIR_RX) {
+		gumr &= ~UCC_FAST_GUMR_ENR;
+		uccf->enabled_rx = 0;
+	}
+	out_be32(&uf_regs->gumr, gumr);
+}
+EXPORT_SYMBOL(ucc_fast_disable);
+
+int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** uccf_ret)
+{
+	struct ucc_fast_private *uccf;
+	struct ucc_fast __iomem *uf_regs;
+	u32 gumr;
+	int ret;
+
+	if (!uf_info)
+		return -EINVAL;
+
+	/* check if the UCC port number is in range. */
+	if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) {
+		printk(KERN_ERR "%s: illegal UCC number\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Check that 'max_rx_buf_length' is properly aligned (4). */
+	if (uf_info->max_rx_buf_length & (UCC_FAST_MRBLR_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: max_rx_buf_length not aligned\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	/* Validate Virtual Fifo register values */
+	if (uf_info->urfs < UCC_FAST_URFS_MIN_VAL) {
+		printk(KERN_ERR "%s: urfs is too small\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->urfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: urfs is not aligned\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->urfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: urfet is not aligned.\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->urfset & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: urfset is not aligned\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->utfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: utfs is not aligned\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->utfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: utfet is not aligned\n", __func__);
+		return -EINVAL;
+	}
+
+	if (uf_info->utftt & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
+		printk(KERN_ERR "%s: utftt is not aligned\n", __func__);
+		return -EINVAL;
+	}
+
+	uccf = kzalloc(sizeof(struct ucc_fast_private), GFP_KERNEL);
+	if (!uccf) {
+		printk(KERN_ERR "%s: Cannot allocate private data\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	/* Fill fast UCC structure */
+	uccf->uf_info = uf_info;
+	/* Set the PHY base address */
+	uccf->uf_regs = ioremap(uf_info->regs, sizeof(struct ucc_fast));
+	if (uccf->uf_regs == NULL) {
+		printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
+		kfree(uccf);
+		return -ENOMEM;
+	}
+
+	uccf->enabled_tx = 0;
+	uccf->enabled_rx = 0;
+	uccf->stopped_tx = 0;
+	uccf->stopped_rx = 0;
+	uf_regs = uccf->uf_regs;
+	uccf->p_ucce = &uf_regs->ucce;
+	uccf->p_uccm = &uf_regs->uccm;
+#ifdef CONFIG_UGETH_TX_ON_DEMAND
+	uccf->p_utodr = &uf_regs->utodr;
+#endif
+#ifdef STATISTICS
+	uccf->tx_frames = 0;
+	uccf->rx_frames = 0;
+	uccf->rx_discarded = 0;
+#endif				/* STATISTICS */
+
+	/* Set UCC to fast type */
+	ret = ucc_set_type(uf_info->ucc_num, UCC_SPEED_TYPE_FAST);
+	if (ret) {
+		printk(KERN_ERR "%s: cannot set UCC type\n", __func__);
+		ucc_fast_free(uccf);
+		return ret;
+	}
+
+	uccf->mrblr = uf_info->max_rx_buf_length;
+
+	/* Set GUMR */
+	/* For more details see the hardware spec. */
+	gumr = uf_info->ttx_trx;
+	if (uf_info->tci)
+		gumr |= UCC_FAST_GUMR_TCI;
+	if (uf_info->cdp)
+		gumr |= UCC_FAST_GUMR_CDP;
+	if (uf_info->ctsp)
+		gumr |= UCC_FAST_GUMR_CTSP;
+	if (uf_info->cds)
+		gumr |= UCC_FAST_GUMR_CDS;
+	if (uf_info->ctss)
+		gumr |= UCC_FAST_GUMR_CTSS;
+	if (uf_info->txsy)
+		gumr |= UCC_FAST_GUMR_TXSY;
+	if (uf_info->rsyn)
+		gumr |= UCC_FAST_GUMR_RSYN;
+	gumr |= uf_info->synl;
+	if (uf_info->rtsm)
+		gumr |= UCC_FAST_GUMR_RTSM;
+	gumr |= uf_info->renc;
+	if (uf_info->revd)
+		gumr |= UCC_FAST_GUMR_REVD;
+	gumr |= uf_info->tenc;
+	gumr |= uf_info->tcrc;
+	gumr |= uf_info->mode;
+	out_be32(&uf_regs->gumr, gumr);
+
+	/* Allocate memory for Tx Virtual Fifo */
+	uccf->ucc_fast_tx_virtual_fifo_base_offset =
+	    qe_muram_alloc(uf_info->utfs, UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
+	if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) {
+		printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO\n",
+			__func__);
+		uccf->ucc_fast_tx_virtual_fifo_base_offset = 0;
+		ucc_fast_free(uccf);
+		return -ENOMEM;
+	}
+
+	/* Allocate memory for Rx Virtual Fifo */
+	uccf->ucc_fast_rx_virtual_fifo_base_offset =
+		qe_muram_alloc(uf_info->urfs +
+			   UCC_FAST_RECEIVE_VIRTUAL_FIFO_SIZE_FUDGE_FACTOR,
+			   UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
+	if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) {
+		printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO\n",
+			__func__);
+		uccf->ucc_fast_rx_virtual_fifo_base_offset = 0;
+		ucc_fast_free(uccf);
+		return -ENOMEM;
+	}
+
+	/* Set Virtual Fifo registers */
+	out_be16(&uf_regs->urfs, uf_info->urfs);
+	out_be16(&uf_regs->urfet, uf_info->urfet);
+	out_be16(&uf_regs->urfset, uf_info->urfset);
+	out_be16(&uf_regs->utfs, uf_info->utfs);
+	out_be16(&uf_regs->utfet, uf_info->utfet);
+	out_be16(&uf_regs->utftt, uf_info->utftt);
+	/* utfb, urfb are offsets from MURAM base */
+	out_be32(&uf_regs->utfb, uccf->ucc_fast_tx_virtual_fifo_base_offset);
+	out_be32(&uf_regs->urfb, uccf->ucc_fast_rx_virtual_fifo_base_offset);
+
+	/* Mux clocking */
+	/* Grant Support */
+	ucc_set_qe_mux_grant(uf_info->ucc_num, uf_info->grant_support);
+	/* Breakpoint Support */
+	ucc_set_qe_mux_bkpt(uf_info->ucc_num, uf_info->brkpt_support);
+	/* Set Tsa or NMSI mode. */
+	ucc_set_qe_mux_tsa(uf_info->ucc_num, uf_info->tsa);
+	/* If NMSI (not Tsa), set Tx and Rx clock. */
+	if (!uf_info->tsa) {
+		/* Rx clock routing */
+		if ((uf_info->rx_clock != QE_CLK_NONE) &&
+		    ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->rx_clock,
+					COMM_DIR_RX)) {
+			printk(KERN_ERR "%s: illegal value for RX clock\n",
+			       __func__);
+			ucc_fast_free(uccf);
+			return -EINVAL;
+		}
+		/* Tx clock routing */
+		if ((uf_info->tx_clock != QE_CLK_NONE) &&
+		    ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->tx_clock,
+					COMM_DIR_TX)) {
+			printk(KERN_ERR "%s: illegal value for TX clock\n",
+			       __func__);
+			ucc_fast_free(uccf);
+			return -EINVAL;
+		}
+	}
+
+	/* Set interrupt mask register at UCC level. */
+	out_be32(&uf_regs->uccm, uf_info->uccm_mask);
+
+	/* First, clear anything pending at UCC level,
+	 * otherwise, old garbage may come through
+	 * as soon as the dam is opened. */
+
+	/* Writing '1' clears */
+	out_be32(&uf_regs->ucce, 0xffffffff);
+
+	*uccf_ret = uccf;
+	return 0;
+}
+EXPORT_SYMBOL(ucc_fast_init);
+
+void ucc_fast_free(struct ucc_fast_private * uccf)
+{
+	if (!uccf)
+		return;
+
+	if (uccf->ucc_fast_tx_virtual_fifo_base_offset)
+		qe_muram_free(uccf->ucc_fast_tx_virtual_fifo_base_offset);
+
+	if (uccf->ucc_fast_rx_virtual_fifo_base_offset)
+		qe_muram_free(uccf->ucc_fast_rx_virtual_fifo_base_offset);
+
+	if (uccf->uf_regs)
+		iounmap(uccf->uf_regs);
+
+	kfree(uccf);
+}
+EXPORT_SYMBOL(ucc_fast_free);
diff --git a/drivers/soc/fsl/qe/ucc_slow.c b/drivers/soc/fsl/qe/ucc_slow.c
new file mode 100644
index 000000000000..9334bdbd9b30
--- /dev/null
+++ b/drivers/soc/fsl/qe/ucc_slow.c
@@ -0,0 +1,374 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Authors: 	Shlomi Gridish <gridish@freescale.com>
+ * 		Li Yang <leoli@freescale.com>
+ *
+ * Description:
+ * QE UCC Slow API Set - UCC Slow specific routines implementations.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/export.h>
+
+#include <asm/io.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+
+#include <soc/fsl/qe/ucc.h>
+#include <soc/fsl/qe/ucc_slow.h>
+
+u32 ucc_slow_get_qe_cr_subblock(int uccs_num)
+{
+	switch (uccs_num) {
+	case 0: return QE_CR_SUBBLOCK_UCCSLOW1;
+	case 1: return QE_CR_SUBBLOCK_UCCSLOW2;
+	case 2: return QE_CR_SUBBLOCK_UCCSLOW3;
+	case 3: return QE_CR_SUBBLOCK_UCCSLOW4;
+	case 4: return QE_CR_SUBBLOCK_UCCSLOW5;
+	case 5: return QE_CR_SUBBLOCK_UCCSLOW6;
+	case 6: return QE_CR_SUBBLOCK_UCCSLOW7;
+	case 7: return QE_CR_SUBBLOCK_UCCSLOW8;
+	default: return QE_CR_SUBBLOCK_INVALID;
+	}
+}
+EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock);
+
+void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs)
+{
+	struct ucc_slow_info *us_info = uccs->us_info;
+	u32 id;
+
+	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
+	qe_issue_cmd(QE_GRACEFUL_STOP_TX, id,
+			 QE_CR_PROTOCOL_UNSPECIFIED, 0);
+}
+EXPORT_SYMBOL(ucc_slow_graceful_stop_tx);
+
+void ucc_slow_stop_tx(struct ucc_slow_private * uccs)
+{
+	struct ucc_slow_info *us_info = uccs->us_info;
+	u32 id;
+
+	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
+	qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
+}
+EXPORT_SYMBOL(ucc_slow_stop_tx);
+
+void ucc_slow_restart_tx(struct ucc_slow_private * uccs)
+{
+	struct ucc_slow_info *us_info = uccs->us_info;
+	u32 id;
+
+	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
+	qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
+}
+EXPORT_SYMBOL(ucc_slow_restart_tx);
+
+void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode)
+{
+	struct ucc_slow *us_regs;
+	u32 gumr_l;
+
+	us_regs = uccs->us_regs;
+
+	/* Enable reception and/or transmission on this UCC. */
+	gumr_l = in_be32(&us_regs->gumr_l);
+	if (mode & COMM_DIR_TX) {
+		gumr_l |= UCC_SLOW_GUMR_L_ENT;
+		uccs->enabled_tx = 1;
+	}
+	if (mode & COMM_DIR_RX) {
+		gumr_l |= UCC_SLOW_GUMR_L_ENR;
+		uccs->enabled_rx = 1;
+	}
+	out_be32(&us_regs->gumr_l, gumr_l);
+}
+EXPORT_SYMBOL(ucc_slow_enable);
+
+void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
+{
+	struct ucc_slow *us_regs;
+	u32 gumr_l;
+
+	us_regs = uccs->us_regs;
+
+	/* Disable reception and/or transmission on this UCC. */
+	gumr_l = in_be32(&us_regs->gumr_l);
+	if (mode & COMM_DIR_TX) {
+		gumr_l &= ~UCC_SLOW_GUMR_L_ENT;
+		uccs->enabled_tx = 0;
+	}
+	if (mode & COMM_DIR_RX) {
+		gumr_l &= ~UCC_SLOW_GUMR_L_ENR;
+		uccs->enabled_rx = 0;
+	}
+	out_be32(&us_regs->gumr_l, gumr_l);
+}
+EXPORT_SYMBOL(ucc_slow_disable);
+
+/* Initialize the UCC for Slow operations
+ *
+ * The caller should initialize the following us_info
+ */
+int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** uccs_ret)
+{
+	struct ucc_slow_private *uccs;
+	u32 i;
+	struct ucc_slow __iomem *us_regs;
+	u32 gumr;
+	struct qe_bd *bd;
+	u32 id;
+	u32 command;
+	int ret = 0;
+
+	if (!us_info)
+		return -EINVAL;
+
+	/* check if the UCC port number is in range. */
+	if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) {
+		printk(KERN_ERR "%s: illegal UCC number\n", __func__);
+		return -EINVAL;
+	}
+
+	/*
+	 * Set mrblr
+	 * Check that 'max_rx_buf_length' is properly aligned (4), unless
+	 * rfw is 1, meaning that QE accepts one byte at a time, unlike normal
+	 * case when QE accepts 32 bits at a time.
+	 */
+	if ((!us_info->rfw) &&
+		(us_info->max_rx_buf_length & (UCC_SLOW_MRBLR_ALIGNMENT - 1))) {
+		printk(KERN_ERR "max_rx_buf_length not aligned.\n");
+		return -EINVAL;
+	}
+
+	uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
+	if (!uccs) {
+		printk(KERN_ERR "%s: Cannot allocate private data\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	/* Fill slow UCC structure */
+	uccs->us_info = us_info;
+	/* Set the PHY base address */
+	uccs->us_regs = ioremap(us_info->regs, sizeof(struct ucc_slow));
+	if (uccs->us_regs == NULL) {
+		printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
+		kfree(uccs);
+		return -ENOMEM;
+	}
+
+	uccs->saved_uccm = 0;
+	uccs->p_rx_frame = 0;
+	us_regs = uccs->us_regs;
+	uccs->p_ucce = (u16 *) & (us_regs->ucce);
+	uccs->p_uccm = (u16 *) & (us_regs->uccm);
+#ifdef STATISTICS
+	uccs->rx_frames = 0;
+	uccs->tx_frames = 0;
+	uccs->rx_discarded = 0;
+#endif				/* STATISTICS */
+
+	/* Get PRAM base */
+	uccs->us_pram_offset =
+		qe_muram_alloc(UCC_SLOW_PRAM_SIZE, ALIGNMENT_OF_UCC_SLOW_PRAM);
+	if (IS_ERR_VALUE(uccs->us_pram_offset)) {
+		printk(KERN_ERR "%s: cannot allocate MURAM for PRAM", __func__);
+		ucc_slow_free(uccs);
+		return -ENOMEM;
+	}
+	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
+	qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, us_info->protocol,
+		     uccs->us_pram_offset);
+
+	uccs->us_pram = qe_muram_addr(uccs->us_pram_offset);
+
+	/* Set UCC to slow type */
+	ret = ucc_set_type(us_info->ucc_num, UCC_SPEED_TYPE_SLOW);
+	if (ret) {
+		printk(KERN_ERR "%s: cannot set UCC type", __func__);
+		ucc_slow_free(uccs);
+		return ret;
+	}
+
+	out_be16(&uccs->us_pram->mrblr, us_info->max_rx_buf_length);
+
+	INIT_LIST_HEAD(&uccs->confQ);
+
+	/* Allocate BDs. */
+	uccs->rx_base_offset =
+		qe_muram_alloc(us_info->rx_bd_ring_len * sizeof(struct qe_bd),
+				QE_ALIGNMENT_OF_BD);
+	if (IS_ERR_VALUE(uccs->rx_base_offset)) {
+		printk(KERN_ERR "%s: cannot allocate %u RX BDs\n", __func__,
+			us_info->rx_bd_ring_len);
+		uccs->rx_base_offset = 0;
+		ucc_slow_free(uccs);
+		return -ENOMEM;
+	}
+
+	uccs->tx_base_offset =
+		qe_muram_alloc(us_info->tx_bd_ring_len * sizeof(struct qe_bd),
+			QE_ALIGNMENT_OF_BD);
+	if (IS_ERR_VALUE(uccs->tx_base_offset)) {
+		printk(KERN_ERR "%s: cannot allocate TX BDs", __func__);
+		uccs->tx_base_offset = 0;
+		ucc_slow_free(uccs);
+		return -ENOMEM;
+	}
+
+	/* Init Tx bds */
+	bd = uccs->confBd = uccs->tx_bd = qe_muram_addr(uccs->tx_base_offset);
+	for (i = 0; i < us_info->tx_bd_ring_len - 1; i++) {
+		/* clear bd buffer */
+		out_be32(&bd->buf, 0);
+		/* set bd status and length */
+		out_be32((u32 *) bd, 0);
+		bd++;
+	}
+	/* for last BD set Wrap bit */
+	out_be32(&bd->buf, 0);
+	out_be32((u32 *) bd, cpu_to_be32(T_W));
+
+	/* Init Rx bds */
+	bd = uccs->rx_bd = qe_muram_addr(uccs->rx_base_offset);
+	for (i = 0; i < us_info->rx_bd_ring_len - 1; i++) {
+		/* set bd status and length */
+		out_be32((u32*)bd, 0);
+		/* clear bd buffer */
+		out_be32(&bd->buf, 0);
+		bd++;
+	}
+	/* for last BD set Wrap bit */
+	out_be32((u32*)bd, cpu_to_be32(R_W));
+	out_be32(&bd->buf, 0);
+
+	/* Set GUMR (For more details see the hardware spec.). */
+	/* gumr_h */
+	gumr = us_info->tcrc;
+	if (us_info->cdp)
+		gumr |= UCC_SLOW_GUMR_H_CDP;
+	if (us_info->ctsp)
+		gumr |= UCC_SLOW_GUMR_H_CTSP;
+	if (us_info->cds)
+		gumr |= UCC_SLOW_GUMR_H_CDS;
+	if (us_info->ctss)
+		gumr |= UCC_SLOW_GUMR_H_CTSS;
+	if (us_info->tfl)
+		gumr |= UCC_SLOW_GUMR_H_TFL;
+	if (us_info->rfw)
+		gumr |= UCC_SLOW_GUMR_H_RFW;
+	if (us_info->txsy)
+		gumr |= UCC_SLOW_GUMR_H_TXSY;
+	if (us_info->rtsm)
+		gumr |= UCC_SLOW_GUMR_H_RTSM;
+	out_be32(&us_regs->gumr_h, gumr);
+
+	/* gumr_l */
+	gumr = us_info->tdcr | us_info->rdcr | us_info->tenc | us_info->renc |
+		us_info->diag | us_info->mode;
+	if (us_info->tci)
+		gumr |= UCC_SLOW_GUMR_L_TCI;
+	if (us_info->rinv)
+		gumr |= UCC_SLOW_GUMR_L_RINV;
+	if (us_info->tinv)
+		gumr |= UCC_SLOW_GUMR_L_TINV;
+	if (us_info->tend)
+		gumr |= UCC_SLOW_GUMR_L_TEND;
+	out_be32(&us_regs->gumr_l, gumr);
+
+	/* Function code registers */
+
+	/* if the data is in cachable memory, the 'global' */
+	/* in the function code should be set. */
+	uccs->us_pram->tbmr = UCC_BMR_BO_BE;
+	uccs->us_pram->rbmr = UCC_BMR_BO_BE;
+
+	/* rbase, tbase are offsets from MURAM base */
+	out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset);
+	out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset);
+
+	/* Mux clocking */
+	/* Grant Support */
+	ucc_set_qe_mux_grant(us_info->ucc_num, us_info->grant_support);
+	/* Breakpoint Support */
+	ucc_set_qe_mux_bkpt(us_info->ucc_num, us_info->brkpt_support);
+	/* Set Tsa or NMSI mode. */
+	ucc_set_qe_mux_tsa(us_info->ucc_num, us_info->tsa);
+	/* If NMSI (not Tsa), set Tx and Rx clock. */
+	if (!us_info->tsa) {
+		/* Rx clock routing */
+		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->rx_clock,
+					COMM_DIR_RX)) {
+			printk(KERN_ERR "%s: illegal value for RX clock\n",
+			       __func__);
+			ucc_slow_free(uccs);
+			return -EINVAL;
+		}
+		/* Tx clock routing */
+		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->tx_clock,
+					COMM_DIR_TX)) {
+			printk(KERN_ERR "%s: illegal value for TX clock\n",
+			       __func__);
+			ucc_slow_free(uccs);
+			return -EINVAL;
+		}
+	}
+
+	/* Set interrupt mask register at UCC level. */
+	out_be16(&us_regs->uccm, us_info->uccm_mask);
+
+	/* First, clear anything pending at UCC level,
+	 * otherwise, old garbage may come through
+	 * as soon as the dam is opened. */
+
+	/* Writing '1' clears */
+	out_be16(&us_regs->ucce, 0xffff);
+
+	/* Issue QE Init command */
+	if (us_info->init_tx && us_info->init_rx)
+		command = QE_INIT_TX_RX;
+	else if (us_info->init_tx)
+		command = QE_INIT_TX;
+	else
+		command = QE_INIT_RX;	/* We know at least one is TRUE */
+
+	qe_issue_cmd(command, id, us_info->protocol, 0);
+
+	*uccs_ret = uccs;
+	return 0;
+}
+EXPORT_SYMBOL(ucc_slow_init);
+
+void ucc_slow_free(struct ucc_slow_private * uccs)
+{
+	if (!uccs)
+		return;
+
+	if (uccs->rx_base_offset)
+		qe_muram_free(uccs->rx_base_offset);
+
+	if (uccs->tx_base_offset)
+		qe_muram_free(uccs->tx_base_offset);
+
+	if (uccs->us_pram)
+		qe_muram_free(uccs->us_pram_offset);
+
+	if (uccs->us_regs)
+		iounmap(uccs->us_regs);
+
+	kfree(uccs);
+}
+EXPORT_SYMBOL(ucc_slow_free);
+
diff --git a/drivers/soc/fsl/qe/usb.c b/drivers/soc/fsl/qe/usb.c
new file mode 100644
index 000000000000..111f7ab80f04
--- /dev/null
+++ b/drivers/soc/fsl/qe/usb.c
@@ -0,0 +1,56 @@
+/*
+ * QE USB routines
+ *
+ * Copyright 2006 Freescale Semiconductor, Inc.
+ *               Shlomi Gridish <gridish@freescale.com>
+ *               Jerry Huang <Chang-Ming.Huang@freescale.com>
+ * Copyright (c) MontaVista Software, Inc. 2008.
+ *               Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <soc/fsl/qe/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+
+int qe_usb_clock_set(enum qe_clock clk, int rate)
+{
+	struct qe_mux __iomem *mux = &qe_immr->qmx;
+	unsigned long flags;
+	u32 val;
+
+	switch (clk) {
+	case QE_CLK3:  val = QE_CMXGCR_USBCS_CLK3;  break;
+	case QE_CLK5:  val = QE_CMXGCR_USBCS_CLK5;  break;
+	case QE_CLK7:  val = QE_CMXGCR_USBCS_CLK7;  break;
+	case QE_CLK9:  val = QE_CMXGCR_USBCS_CLK9;  break;
+	case QE_CLK13: val = QE_CMXGCR_USBCS_CLK13; break;
+	case QE_CLK17: val = QE_CMXGCR_USBCS_CLK17; break;
+	case QE_CLK19: val = QE_CMXGCR_USBCS_CLK19; break;
+	case QE_CLK21: val = QE_CMXGCR_USBCS_CLK21; break;
+	case QE_BRG9:  val = QE_CMXGCR_USBCS_BRG9;  break;
+	case QE_BRG10: val = QE_CMXGCR_USBCS_BRG10; break;
+	default:
+		pr_err("%s: requested unknown clock %d\n", __func__, clk);
+		return -EINVAL;
+	}
+
+	if (qe_clock_is_brg(clk))
+		qe_setbrg(clk, rate, 1);
+
+	spin_lock_irqsave(&cmxgcr_lock, flags);
+
+	clrsetbits_be32(&mux->cmxgcr, QE_CMXGCR_USBCS, val);
+
+	spin_unlock_irqrestore(&cmxgcr_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(qe_usb_clock_set);
diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index bc1b80ec6afe..1a7b5caa127b 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -389,7 +389,7 @@ static int of_channel_match_helper(struct device_node *np, const char *name,
 	*dma_instance = dma_node->name;
 	index = of_property_match_string(np, "ti,navigator-dma-names", name);
 	if (index < 0) {
-		dev_err(kdev->dev, "No 'ti,navigator-dma-names' propery\n");
+		dev_err(kdev->dev, "No 'ti,navigator-dma-names' property\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 8b9c2a38d1cc..77064160dd76 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -585,7 +585,7 @@ config SPI_TEGRA20_SLINK
 
 config SPI_TOPCLIFF_PCH
 	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
-	depends on PCI && (X86_32 || COMPILE_TEST)
+	depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
 	help
 	  SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
 	  used in some x86 embedded processors.
@@ -689,6 +689,15 @@ config SPI_SPIDEV
 	  Note that this application programming interface is EXPERIMENTAL
 	  and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 
+config SPI_LOOPBACK_TEST
+	tristate "spi loopback test framework support"
+	depends on m
+	help
+	  This enables the SPI loopback testing framework driver
+
+	  primarily used for development of spi_master drivers
+	  and to detect regressions
+
 config SPI_TLE62X0
 	tristate "Infineon TLE62X0 (for power switching)"
 	depends on SYSFS
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 31fb7fb2a0b6..8991ffce6e12 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -8,6 +8,7 @@ ccflags-$(CONFIG_SPI_DEBUG) := -DDEBUG
 # config declarations into driver model code
 obj-$(CONFIG_SPI_MASTER)		+= spi.o
 obj-$(CONFIG_SPI_SPIDEV)		+= spidev.o
+obj-$(CONFIG_SPI_LOOPBACK_TEST)		+= spi-loopback-test.o
 
 # SPI master controller drivers (bus)
 obj-$(CONFIG_SPI_ALTERA)		+= spi-altera.o
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index bf9a610e5b89..fee747030ee6 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -207,6 +207,9 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi,
 	u8 clk_cfg, reg;
 	int i;
 
+	/* Default to lowest clock configuration */
+	clk_cfg = SPI_CLK_0_391MHZ;
+
 	/* Find the closest clock configuration */
 	for (i = 0; i < SPI_CLK_MASK; i++) {
 		if (t->speed_hz >= bcm63xx_spi_freq_table[i][0]) {
@@ -215,10 +218,6 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi,
 		}
 	}
 
-	/* No matching configuration found, default to lowest */
-	if (i == SPI_CLK_MASK)
-		clk_cfg = SPI_CLK_0_391MHZ;
-
 	/* clear existing clock configuration bits of the register */
 	reg = bcm_spi_readb(bs, SPI_CLK_CFG);
 	reg &= ~SPI_CLK_MASK;
diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 9a95862986c8..22a31e4a1a11 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -27,7 +27,6 @@
 
 #include <linux/mtd/partitions.h>
 
-
 /*
  * This uses SPI to talk with an "AVR Butterfly", which is a $US20 card
  * with a battery powered AVR microcontroller and lots of goodies.  You
@@ -37,7 +36,6 @@
  * and use this custom parallel port cable.
  */
 
-
 /* DATA output bits (pins 2..9 == D0..D7) */
 #define	butterfly_nreset (1 << 1)		/* pin 3 */
 
@@ -52,14 +50,11 @@
 /* CONTROL output bits */
 #define	spi_cs_bit	PARPORT_CONTROL_SELECT	/* pin 17 */
 
-
-
 static inline struct butterfly *spidev_to_pp(struct spi_device *spi)
 {
 	return spi->controller_data;
 }
 
-
 struct butterfly {
 	/* REVISIT ... for now, this must be first */
 	struct spi_bitbang	bitbang;
@@ -140,7 +135,6 @@ static void butterfly_chipselect(struct spi_device *spi, int value)
 	parport_frob_control(pp->port, spi_cs_bit, value ? spi_cs_bit : 0);
 }
 
-
 /* we only needed to implement one mode here, and choose SPI_MODE_0 */
 
 #define spidelay(X)	do { } while (0)
@@ -149,9 +143,8 @@ static void butterfly_chipselect(struct spi_device *spi, int value)
 #include "spi-bitbang-txrx.h"
 
 static u32
-butterfly_txrx_word_mode0(struct spi_device *spi,
-		unsigned nsecs,
-		u32 word, u8 bits)
+butterfly_txrx_word_mode0(struct spi_device *spi, unsigned nsecs, u32 word,
+			  u8 bits)
 {
 	return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits);
 }
@@ -186,7 +179,6 @@ static struct flash_platform_data flash = {
 	.nr_parts	= ARRAY_SIZE(partitions),
 };
 
-
 /* REVISIT remove this ugly global and its "only one" limitation */
 static struct butterfly *butterfly;
 
@@ -197,6 +189,7 @@ static void butterfly_attach(struct parport *p)
 	struct butterfly	*pp;
 	struct spi_master	*master;
 	struct device		*dev = p->physport->dev;
+	struct pardev_cb	butterfly_cb;
 
 	if (butterfly || !dev)
 		return;
@@ -229,9 +222,9 @@ static void butterfly_attach(struct parport *p)
 	 * parport hookup
 	 */
 	pp->port = p;
-	pd = parport_register_device(p, "spi_butterfly",
-			NULL, NULL, NULL,
-			0 /* FLAGS */, pp);
+	memset(&butterfly_cb, 0, sizeof(butterfly_cb));
+	butterfly_cb.private = pp;
+	pd = parport_register_dev_model(p, "spi_butterfly", &butterfly_cb, 0);
 	if (!pd) {
 		status = -ENOMEM;
 		goto clean0;
@@ -262,7 +255,6 @@ static void butterfly_attach(struct parport *p)
 	parport_write_data(pp->port, pp->lastbyte);
 	msleep(100);
 
-
 	/*
 	 * Start SPI ... for now, hide that we're two physical busses.
 	 */
@@ -283,7 +275,7 @@ static void butterfly_attach(struct parport *p)
 	pp->dataflash = spi_new_device(pp->bitbang.master, &pp->info[0]);
 	if (pp->dataflash)
 		pr_debug("%s: dataflash at %s\n", p->name,
-				dev_name(&pp->dataflash->dev));
+			 dev_name(&pp->dataflash->dev));
 
 	pr_info("%s: AVR Butterfly\n", p->name);
 	butterfly = pp;
@@ -297,7 +289,7 @@ clean2:
 clean1:
 	parport_unregister_device(pd);
 clean0:
-	(void) spi_master_put(pp->bitbang.master);
+	spi_master_put(pp->bitbang.master);
 done:
 	pr_debug("%s: butterfly probe, fail %d\n", p->name, status);
 }
@@ -325,16 +317,16 @@ static void butterfly_detach(struct parport *p)
 	parport_release(pp->pd);
 	parport_unregister_device(pp->pd);
 
-	(void) spi_master_put(pp->bitbang.master);
+	spi_master_put(pp->bitbang.master);
 }
 
 static struct parport_driver butterfly_driver = {
 	.name =		"spi_butterfly",
-	.attach =	butterfly_attach,
+	.match_port =	butterfly_attach,
 	.detach =	butterfly_detach,
+	.devmodel = true,
 };
 
-
 static int __init butterfly_init(void)
 {
 	return parport_register_driver(&butterfly_driver);
diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c
index 5a6749881ff9..121a4135b540 100644
--- a/drivers/spi/spi-cadence.c
+++ b/drivers/spi/spi-cadence.c
@@ -617,8 +617,7 @@ static int cdns_spi_remove(struct platform_device *pdev)
  */
 static int __maybe_unused cdns_spi_suspend(struct device *dev)
 {
-	struct platform_device *pdev = container_of(dev,
-			struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct cdns_spi *xspi = spi_master_get_devdata(master);
 
@@ -641,8 +640,7 @@ static int __maybe_unused cdns_spi_suspend(struct device *dev)
  */
 static int __maybe_unused cdns_spi_resume(struct device *dev)
 {
-	struct platform_device *pdev = container_of(dev,
-			struct platform_device, dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct cdns_spi *xspi = spi_master_get_devdata(master);
 	int ret = 0;
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 7d3af3eacf57..fddb7a3be322 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -477,33 +477,33 @@ static int davinci_spi_check_error(struct davinci_spi *dspi, int int_status)
 	struct device *sdev = dspi->bitbang.master->dev.parent;
 
 	if (int_status & SPIFLG_TIMEOUT_MASK) {
-		dev_dbg(sdev, "SPI Time-out Error\n");
+		dev_err(sdev, "SPI Time-out Error\n");
 		return -ETIMEDOUT;
 	}
 	if (int_status & SPIFLG_DESYNC_MASK) {
-		dev_dbg(sdev, "SPI Desynchronization Error\n");
+		dev_err(sdev, "SPI Desynchronization Error\n");
 		return -EIO;
 	}
 	if (int_status & SPIFLG_BITERR_MASK) {
-		dev_dbg(sdev, "SPI Bit error\n");
+		dev_err(sdev, "SPI Bit error\n");
 		return -EIO;
 	}
 
 	if (dspi->version == SPI_VERSION_2) {
 		if (int_status & SPIFLG_DLEN_ERR_MASK) {
-			dev_dbg(sdev, "SPI Data Length Error\n");
+			dev_err(sdev, "SPI Data Length Error\n");
 			return -EIO;
 		}
 		if (int_status & SPIFLG_PARERR_MASK) {
-			dev_dbg(sdev, "SPI Parity Error\n");
+			dev_err(sdev, "SPI Parity Error\n");
 			return -EIO;
 		}
 		if (int_status & SPIFLG_OVRRUN_MASK) {
-			dev_dbg(sdev, "SPI Data Overrun error\n");
+			dev_err(sdev, "SPI Data Overrun error\n");
 			return -EIO;
 		}
 		if (int_status & SPIFLG_BUF_INIT_ACTIVE_MASK) {
-			dev_dbg(sdev, "SPI Buffer Init Active\n");
+			dev_err(sdev, "SPI Buffer Init Active\n");
 			return -EBUSY;
 		}
 	}
@@ -703,7 +703,8 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
 
 	/* Wait for the transfer to complete */
 	if (spicfg->io_type != SPI_IO_TYPE_POLL) {
-		wait_for_completion_interruptible(&(dspi->done));
+		if (wait_for_completion_timeout(&dspi->done, HZ) == 0)
+			errors = SPIFLG_TIMEOUT_MASK;
 	} else {
 		while (dspi->rcount > 0 || dspi->wcount > 0) {
 			errors = davinci_spi_process_events(dspi);
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index bb1052e748f2..9185f6c08459 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -283,7 +283,7 @@ static void mid_spi_dma_stop(struct dw_spi *dws)
 	}
 }
 
-static struct dw_spi_dma_ops mid_dma_ops = {
+static const struct dw_spi_dma_ops mid_dma_ops = {
 	.dma_init	= mid_spi_dma_init,
 	.dma_exit	= mid_spi_dma_exit,
 	.dma_setup	= mid_spi_dma_setup,
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 882cd6618cd5..c09bb745693a 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -425,7 +425,7 @@ static int dw_spi_setup(struct spi_device *spi)
 		chip->type = chip_info->type;
 	}
 
-	chip->tmode = 0; /* Tx & Rx */
+	chip->tmode = SPI_TMOD_TR;
 
 	if (gpio_is_valid(spi->cs_gpio)) {
 		ret = gpio_direction_output(spi->cs_gpio,
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 35589a270468..61bc3cbab38d 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -130,7 +130,7 @@ struct dw_spi {
 	struct dma_chan		*rxchan;
 	unsigned long		dma_chan_busy;
 	dma_addr_t		dma_addr; /* phy address of the Data register */
-	struct dw_spi_dma_ops	*dma_ops;
+	const struct dw_spi_dma_ops *dma_ops;
 	void			*dma_tx;
 	void			*dma_rx;
 
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 896add8cfd3b..8f7b26ec181e 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -16,7 +16,7 @@
  * option) any later version.
  */
 #include <asm/cpm.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/qe.h>
 #include <linux/dma-mapping.h>
 #include <linux/fsl_devices.h>
 #include <linux/kernel.h>
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index c27124a5ec8e..7fd6a4c009d2 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -643,6 +643,11 @@ static int fsl_espi_runtime_resume(struct device *dev)
 }
 #endif
 
+static size_t fsl_espi_max_transfer_size(struct spi_device *spi)
+{
+	return SPCOM_TRANLEN_MAX;
+}
+
 static struct spi_master * fsl_espi_probe(struct device *dev,
 		struct resource *mem, unsigned int irq)
 {
@@ -670,6 +675,7 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
 	master->cleanup = fsl_espi_cleanup;
 	master->transfer_one_message = fsl_espi_do_one_msg;
 	master->auto_runtime_pm = true;
+	master->max_transfer_size = fsl_espi_max_transfer_size;
 
 	mpc8xxx_spi = spi_master_get_devdata(master);
 
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 0e5723ab47f0..d98c33cb64f9 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -104,9 +104,7 @@ struct spi_imx_data {
 	unsigned int dma_is_inited;
 	unsigned int dma_finished;
 	bool usedma;
-	u32 rx_wml;
-	u32 tx_wml;
-	u32 rxt_wml;
+	u32 wml;
 	struct completion dma_rx_completion;
 	struct completion dma_tx_completion;
 
@@ -124,9 +122,14 @@ static inline int is_imx35_cspi(struct spi_imx_data *d)
 	return d->devtype_data->devtype == IMX35_CSPI;
 }
 
+static inline int is_imx51_ecspi(struct spi_imx_data *d)
+{
+	return d->devtype_data->devtype == IMX51_ECSPI;
+}
+
 static inline unsigned spi_imx_get_fifosize(struct spi_imx_data *d)
 {
-	return (d->devtype_data->devtype == IMX51_ECSPI) ? 64 : 8;
+	return is_imx51_ecspi(d) ? 64 : 8;
 }
 
 #define MXC_SPI_BUF_RX(type)						\
@@ -201,9 +204,8 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
 {
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
 
-	if (spi_imx->dma_is_inited
-	    && transfer->len > spi_imx->rx_wml * sizeof(u32)
-	    && transfer->len > spi_imx->tx_wml * sizeof(u32))
+	if (spi_imx->dma_is_inited &&
+	    transfer->len > spi_imx->wml * sizeof(u32))
 		return true;
 	return false;
 }
@@ -244,6 +246,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
 #define MX51_ECSPI_STAT		0x18
 #define MX51_ECSPI_STAT_RR		(1 <<  3)
 
+#define MX51_ECSPI_TESTREG	0x20
+#define MX51_ECSPI_TESTREG_LBC	BIT(31)
+
 /* MX51 eCSPI */
 static unsigned int mx51_ecspi_clkdiv(unsigned int fin, unsigned int fspi,
 				      unsigned int *fres)
@@ -313,7 +318,7 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
 {
 	u32 ctrl = MX51_ECSPI_CTRL_ENABLE, cfg = 0, dma = 0;
 	u32 tx_wml_cfg, rx_wml_cfg, rxt_wml_cfg;
-	u32 clk = config->speed_hz, delay;
+	u32 clk = config->speed_hz, delay, reg;
 
 	/*
 	 * The hardware seems to have a race condition when changing modes. The
@@ -351,7 +356,16 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
 	else
 		cfg &= ~MX51_ECSPI_CONFIG_SSBPOL(config->cs);
 
+	/* CTRL register always go first to bring out controller from reset */
 	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
+
+	reg = readl(spi_imx->base + MX51_ECSPI_TESTREG);
+	if (config->mode & SPI_LOOP)
+		reg |= MX51_ECSPI_TESTREG_LBC;
+	else
+		reg &= ~MX51_ECSPI_TESTREG_LBC;
+	writel(reg, spi_imx->base + MX51_ECSPI_TESTREG);
+
 	writel(cfg, spi_imx->base + MX51_ECSPI_CONFIG);
 
 	/*
@@ -378,10 +392,9 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx,
 	if (spi_imx->dma_is_inited) {
 		dma = readl(spi_imx->base + MX51_ECSPI_DMA);
 
-		spi_imx->rxt_wml = spi_imx_get_fifosize(spi_imx) / 2;
-		rx_wml_cfg = spi_imx->rx_wml << MX51_ECSPI_DMA_RX_WML_OFFSET;
-		tx_wml_cfg = spi_imx->tx_wml << MX51_ECSPI_DMA_TX_WML_OFFSET;
-		rxt_wml_cfg = spi_imx->rxt_wml << MX51_ECSPI_DMA_RXT_WML_OFFSET;
+		rx_wml_cfg = spi_imx->wml << MX51_ECSPI_DMA_RX_WML_OFFSET;
+		tx_wml_cfg = spi_imx->wml << MX51_ECSPI_DMA_TX_WML_OFFSET;
+		rxt_wml_cfg = spi_imx->wml << MX51_ECSPI_DMA_RXT_WML_OFFSET;
 		dma = (dma & ~MX51_ECSPI_DMA_TX_WML_MASK
 			   & ~MX51_ECSPI_DMA_RX_WML_MASK
 			   & ~MX51_ECSPI_DMA_RXT_WML_MASK)
@@ -832,18 +845,21 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx,
 	if (of_machine_is_compatible("fsl,imx6dl"))
 		return 0;
 
+	spi_imx->wml = spi_imx_get_fifosize(spi_imx) / 2;
+
 	/* Prepare for TX DMA: */
-	master->dma_tx = dma_request_slave_channel(dev, "tx");
-	if (!master->dma_tx) {
-		dev_err(dev, "cannot get the TX DMA channel!\n");
-		ret = -EINVAL;
+	master->dma_tx = dma_request_slave_channel_reason(dev, "tx");
+	if (IS_ERR(master->dma_tx)) {
+		ret = PTR_ERR(master->dma_tx);
+		dev_dbg(dev, "can't get the TX DMA channel, error %d!\n", ret);
+		master->dma_tx = NULL;
 		goto err;
 	}
 
 	slave_config.direction = DMA_MEM_TO_DEV;
 	slave_config.dst_addr = res->start + MXC_CSPITXDATA;
 	slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
-	slave_config.dst_maxburst = spi_imx_get_fifosize(spi_imx) / 2;
+	slave_config.dst_maxburst = spi_imx->wml;
 	ret = dmaengine_slave_config(master->dma_tx, &slave_config);
 	if (ret) {
 		dev_err(dev, "error in TX dma configuration.\n");
@@ -851,17 +867,18 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx,
 	}
 
 	/* Prepare for RX : */
-	master->dma_rx = dma_request_slave_channel(dev, "rx");
-	if (!master->dma_rx) {
-		dev_dbg(dev, "cannot get the DMA channel.\n");
-		ret = -EINVAL;
+	master->dma_rx = dma_request_slave_channel_reason(dev, "rx");
+	if (IS_ERR(master->dma_rx)) {
+		ret = PTR_ERR(master->dma_rx);
+		dev_dbg(dev, "can't get the RX DMA channel, error %d\n", ret);
+		master->dma_rx = NULL;
 		goto err;
 	}
 
 	slave_config.direction = DMA_DEV_TO_MEM;
 	slave_config.src_addr = res->start + MXC_CSPIRXDATA;
 	slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
-	slave_config.src_maxburst = spi_imx_get_fifosize(spi_imx) / 2;
+	slave_config.src_maxburst = spi_imx->wml;
 	ret = dmaengine_slave_config(master->dma_rx, &slave_config);
 	if (ret) {
 		dev_err(dev, "error in RX dma configuration.\n");
@@ -874,8 +891,6 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx,
 	master->max_dma_len = MAX_SDMA_BD_BYTES;
 	spi_imx->bitbang.master->flags = SPI_MASTER_MUST_RX |
 					 SPI_MASTER_MUST_TX;
-	spi_imx->tx_wml = spi_imx_get_fifosize(spi_imx) / 2;
-	spi_imx->rx_wml = spi_imx_get_fifosize(spi_imx) / 2;
 	spi_imx->dma_is_inited = 1;
 
 	return 0;
@@ -942,14 +957,22 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 	dma = readl(spi_imx->base + MX51_ECSPI_DMA);
 	dma = dma & (~MX51_ECSPI_DMA_RXT_WML_MASK);
 	/* Change RX_DMA_LENGTH trigger dma fetch tail data */
-	left = transfer->len % spi_imx->rxt_wml;
+	left = transfer->len % spi_imx->wml;
 	if (left)
 		writel(dma | (left << MX51_ECSPI_DMA_RXT_WML_OFFSET),
 				spi_imx->base + MX51_ECSPI_DMA);
+	/*
+	 * Set these order to avoid potential RX overflow. The overflow may
+	 * happen if we enable SPI HW before starting RX DMA due to rescheduling
+	 * for another task and/or interrupt.
+	 * So RX DMA enabled first to make sure data would be read out from FIFO
+	 * ASAP. TX DMA enabled next to start filling TX FIFO with new data.
+	 * And finaly SPI HW enabled to start actual data transfer.
+	 */
+	dma_async_issue_pending(master->dma_rx);
+	dma_async_issue_pending(master->dma_tx);
 	spi_imx->devtype_data->trigger(spi_imx);
 
-	dma_async_issue_pending(master->dma_tx);
-	dma_async_issue_pending(master->dma_rx);
 	/* Wait SDMA to finish the data transfer.*/
 	timeout = wait_for_completion_timeout(&spi_imx->dma_tx_completion,
 						IMX_DMA_TIMEOUT);
@@ -958,6 +981,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 			dev_driver_string(&master->dev),
 			dev_name(&master->dev));
 		dmaengine_terminate_all(master->dma_tx);
+		dmaengine_terminate_all(master->dma_rx);
 	} else {
 		timeout = wait_for_completion_timeout(
 				&spi_imx->dma_rx_completion, IMX_DMA_TIMEOUT);
@@ -968,8 +992,9 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
 			spi_imx->devtype_data->reset(spi_imx);
 			dmaengine_terminate_all(master->dma_rx);
 		}
+		dma &= ~MX51_ECSPI_DMA_RXT_WML_MASK;
 		writel(dma |
-		       spi_imx->rxt_wml << MX51_ECSPI_DMA_RXT_WML_OFFSET,
+		       spi_imx->wml << MX51_ECSPI_DMA_RXT_WML_OFFSET,
 		       spi_imx->base + MX51_ECSPI_DMA);
 	}
 
@@ -1117,6 +1142,9 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx = spi_master_get_devdata(master);
 	spi_imx->bitbang.master = master;
 
+	spi_imx->devtype_data = of_id ? of_id->data :
+		(struct spi_imx_devtype_data *)pdev->id_entry->driver_data;
+
 	for (i = 0; i < master->num_chipselect; i++) {
 		int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
 		if (!gpio_is_valid(cs_gpio) && mxc_platform_info)
@@ -1142,12 +1170,11 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx->bitbang.master->prepare_message = spi_imx_prepare_message;
 	spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message;
 	spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
+	if (is_imx51_ecspi(spi_imx))
+		spi_imx->bitbang.master->mode_bits |= SPI_LOOP;
 
 	init_completion(&spi_imx->xfer_done);
 
-	spi_imx->devtype_data = of_id ? of_id->data :
-		(struct spi_imx_devtype_data *) pdev->id_entry->driver_data;
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	spi_imx->base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(spi_imx->base)) {
@@ -1193,9 +1220,15 @@ static int spi_imx_probe(struct platform_device *pdev)
 	 * Only validated on i.mx6 now, can remove the constrain if validated on
 	 * other chips.
 	 */
-	if (spi_imx->devtype_data == &imx51_ecspi_devtype_data
-	    && spi_imx_sdma_init(&pdev->dev, spi_imx, master, res))
-		dev_err(&pdev->dev, "dma setup error,use pio instead\n");
+	if (is_imx51_ecspi(spi_imx)) {
+		ret = spi_imx_sdma_init(&pdev->dev, spi_imx, master, res);
+		if (ret == -EPROBE_DEFER)
+			goto out_clk_put;
+
+		if (ret < 0)
+			dev_err(&pdev->dev, "dma setup error %d, use pio\n",
+				ret);
+	}
 
 	spi_imx->devtype_data->reset(spi_imx);
 
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index ba72347cb99d..61ee0f4269ae 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -14,6 +14,8 @@
  * GNU General Public License for more details.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -23,11 +25,9 @@
 #include <linux/sysfs.h>
 #include <linux/workqueue.h>
 
-
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_bitbang.h>
 
-
 /*
  * The LM70 communicates with a host processor using a 3-wire variant of
  * the SPI/Microwire bus interface. This driver specifically supports an
@@ -88,7 +88,6 @@ struct spi_lm70llp {
 /* REVISIT : ugly global ; provides "exclusive open" facility */
 static struct spi_lm70llp *lm70llp;
 
-
 /*-------------------------------------------------------------------*/
 
 static inline struct spi_lm70llp *spidev_to_pp(struct spi_device *spi)
@@ -122,12 +121,14 @@ static inline void assertCS(struct spi_lm70llp *pp)
 static inline void clkHigh(struct spi_lm70llp *pp)
 {
 	u8 data = parport_read_data(pp->port);
+
 	parport_write_data(pp->port, data | SCLK);
 }
 
 static inline void clkLow(struct spi_lm70llp *pp)
 {
 	u8 data = parport_read_data(pp->port);
+
 	parport_write_data(pp->port, data & ~SCLK);
 }
 
@@ -166,8 +167,10 @@ static inline void setmosi(struct spi_device *s, int is_on)
 static inline int getmiso(struct spi_device *s)
 {
 	struct spi_lm70llp *pp = spidev_to_pp(s);
-	return ((SIO == (parport_read_status(pp->port) & SIO)) ? 0 : 1 );
+
+	return ((SIO == (parport_read_status(pp->port) & SIO)) ? 0 : 1);
 }
+
 /*--------------------------------------------------------------------*/
 
 #include "spi-bitbang-txrx.h"
@@ -196,11 +199,10 @@ static void spi_lm70llp_attach(struct parport *p)
 	struct spi_lm70llp	*pp;
 	struct spi_master	*master;
 	int			status;
+	struct pardev_cb	lm70llp_cb;
 
 	if (lm70llp) {
-		printk(KERN_WARNING
-			"%s: spi_lm70llp instance already loaded. Aborting.\n",
-			DRVNAME);
+		pr_warn("spi_lm70llp instance already loaded. Aborting.\n");
 		return;
 	}
 
@@ -227,9 +229,11 @@ static void spi_lm70llp_attach(struct parport *p)
 	 * Parport hookup
 	 */
 	pp->port = p;
-	pd = parport_register_device(p, DRVNAME,
-			NULL, NULL, NULL,
-			PARPORT_FLAG_EXCL, pp);
+	memset(&lm70llp_cb, 0, sizeof(lm70llp_cb));
+	lm70llp_cb.private = pp;
+	lm70llp_cb.flags = PARPORT_FLAG_EXCL;
+	pd = parport_register_dev_model(p, DRVNAME, &lm70llp_cb, 0);
+
 	if (!pd) {
 		status = -ENOMEM;
 		goto out_free_master;
@@ -245,9 +249,8 @@ static void spi_lm70llp_attach(struct parport *p)
 	 */
 	status = spi_bitbang_start(&pp->bitbang);
 	if (status < 0) {
-		printk(KERN_WARNING
-			"%s: spi_bitbang_start failed with status %d\n",
-			DRVNAME, status);
+		dev_warn(&pd->dev, "spi_bitbang_start failed with status %d\n",
+			 status);
 		goto out_off_and_release;
 	}
 
@@ -272,9 +275,9 @@ static void spi_lm70llp_attach(struct parport *p)
 	pp->spidev_lm70 = spi_new_device(pp->bitbang.master, &pp->info);
 	if (pp->spidev_lm70)
 		dev_dbg(&pp->spidev_lm70->dev, "spidev_lm70 at %s\n",
-				dev_name(&pp->spidev_lm70->dev));
+			dev_name(&pp->spidev_lm70->dev));
 	else {
-		printk(KERN_WARNING "%s: spi_new_device failed\n", DRVNAME);
+		dev_warn(&pd->dev, "spi_new_device failed\n");
 		status = -ENODEV;
 		goto out_bitbang_stop;
 	}
@@ -293,9 +296,9 @@ out_off_and_release:
 out_parport_unreg:
 	parport_unregister_device(pd);
 out_free_master:
-	(void) spi_master_put(master);
+	spi_master_put(master);
 out_fail:
-	pr_info("%s: spi_lm70llp probe fail, status %d\n", DRVNAME, status);
+	pr_info("spi_lm70llp probe fail, status %d\n", status);
 }
 
 static void spi_lm70llp_detach(struct parport *p)
@@ -314,16 +317,16 @@ static void spi_lm70llp_detach(struct parport *p)
 	parport_release(pp->pd);
 	parport_unregister_device(pp->pd);
 
-	(void) spi_master_put(pp->bitbang.master);
+	spi_master_put(pp->bitbang.master);
 
 	lm70llp = NULL;
 }
 
-
 static struct parport_driver spi_lm70llp_drv = {
 	.name =		DRVNAME,
-	.attach =	spi_lm70llp_attach,
+	.match_port =	spi_lm70llp_attach,
 	.detach =	spi_lm70llp_detach,
+	.devmodel =	true,
 };
 
 static int __init init_spi_lm70llp(void)
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
new file mode 100644
index 000000000000..894616f687b0
--- /dev/null
+++ b/drivers/spi/spi-loopback-test.c
@@ -0,0 +1,1005 @@
+/*
+ *  linux/drivers/spi/spi-loopback-test.c
+ *
+ *  (c) Martin Sperl <kernel@martin.sperl.org>
+ *
+ *  Loopback test driver to test several typical spi_message conditions
+ *  that a spi_master driver may encounter
+ *  this can also get used for regression testing
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/list_sort.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/printk.h>
+#include <linux/spi/spi.h>
+
+#include "spi-test.h"
+
+/* flag to only simulate transfers */
+int simulate_only;
+module_param(simulate_only, int, 0);
+MODULE_PARM_DESC(simulate_only, "if not 0 do not execute the spi message");
+
+/* dump spi messages */
+int dump_messages;
+module_param(dump_messages, int, 0);
+MODULE_PARM_DESC(dump_messages,
+		 "=1 dump the basic spi_message_structure, " \
+		 "=2 dump the spi_message_structure including data, " \
+		 "=3 dump the spi_message structure before and after execution");
+/* the device is jumpered for loopback - enabling some rx_buf tests */
+int loopback;
+module_param(loopback, int, 0);
+MODULE_PARM_DESC(loopback,
+		 "if set enable loopback mode, where the rx_buf "	\
+		 "is checked to match tx_buf after the spi_message "	\
+		 "is executed");
+
+/* run only a specific test */
+int run_only_test = -1;
+module_param(run_only_test, int, 0);
+MODULE_PARM_DESC(run_only_test,
+		 "only run the test with this number (0-based !)");
+
+/* the actual tests to execute */
+static struct spi_test spi_tests[] = {
+	{
+		.description	= "tx/rx-transfer - start of page",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_rx_align = ITERATE_ALIGN,
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "tx/rx-transfer - crossing PAGE_SIZE",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_rx_align = ITERATE_ALIGN,
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(PAGE_SIZE - 4),
+				.rx_buf = RX(PAGE_SIZE - 4),
+			},
+		},
+	},
+	{
+		.description	= "tx-transfer - only",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+		},
+	},
+	{
+		.description	= "rx-transfer - only",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_rx_align = ITERATE_ALIGN,
+		.transfers		= {
+			{
+				.len = 1,
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "two tx-transfers - alter both",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0) | BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+			{
+				.len = 1,
+				/* this is why we cant use ITERATE_MAX_LEN */
+				.tx_buf = TX(SPI_TEST_MAX_SIZE_HALF),
+			},
+		},
+	},
+	{
+		.description	= "two tx-transfers - alter first",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(64),
+			},
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+		},
+	},
+	{
+		.description	= "two tx-transfers - alter second",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0),
+		.transfers		= {
+			{
+				.len = 16,
+				.tx_buf = TX(0),
+			},
+			{
+				.len = 1,
+				.tx_buf = TX(64),
+			},
+		},
+	},
+	{
+		.description	= "two transfers tx then rx - alter both",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0) | BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+			{
+				.len = 1,
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "two transfers tx then rx - alter tx",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+			{
+				.len = 1,
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "two transfers tx then rx - alter rx",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+			},
+			{
+				.len = 1,
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "two tx+rx transfers - alter both",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0) | BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+				.rx_buf = RX(0),
+			},
+			{
+				.len = 1,
+				/* making sure we align without overwrite
+				 * the reason we can not use ITERATE_MAX_LEN
+				 */
+				.tx_buf = TX(SPI_TEST_MAX_SIZE_HALF),
+				.rx_buf = RX(SPI_TEST_MAX_SIZE_HALF),
+			},
+		},
+	},
+	{
+		.description	= "two tx+rx transfers - alter first",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(0),
+		.transfers		= {
+			{
+				.len = 1,
+				/* making sure we align without overwrite */
+				.tx_buf = TX(1024),
+				.rx_buf = RX(1024),
+			},
+			{
+				.len = 1,
+				/* making sure we align without overwrite */
+				.tx_buf = TX(0),
+				.rx_buf = RX(0),
+			},
+		},
+	},
+	{
+		.description	= "two tx+rx transfers - alter second",
+		.fill_option	= FILL_COUNT_8,
+		.iterate_len    = { ITERATE_MAX_LEN },
+		.iterate_tx_align = ITERATE_ALIGN,
+		.iterate_transfer_mask = BIT(1),
+		.transfers		= {
+			{
+				.len = 1,
+				.tx_buf = TX(0),
+				.rx_buf = RX(0),
+			},
+			{
+				.len = 1,
+				/* making sure we align without overwrite */
+				.tx_buf = TX(1024),
+				.rx_buf = RX(1024),
+			},
+		},
+	},
+
+	{ /* end of tests sequence */ }
+};
+
+static int spi_loopback_test_probe(struct spi_device *spi)
+{
+	int ret;
+
+	dev_info(&spi->dev, "Executing spi-loopback-tests\n");
+
+	ret = spi_test_run_tests(spi, spi_tests);
+
+	dev_info(&spi->dev, "Finished spi-loopback-tests with return: %i\n",
+		 ret);
+
+	return ret;
+}
+
+/* non const match table to permit to change via a module parameter */
+static struct of_device_id spi_loopback_test_of_match[] = {
+	{ .compatible	= "linux,spi-loopback-test", },
+	{ }
+};
+
+/* allow to override the compatible string via a module_parameter */
+module_param_string(compatible, spi_loopback_test_of_match[0].compatible,
+		    sizeof(spi_loopback_test_of_match[0].compatible),
+		    0000);
+
+MODULE_DEVICE_TABLE(of, spi_loopback_test_of_match);
+
+static struct spi_driver spi_loopback_test_driver = {
+	.driver = {
+		.name = "spi-loopback-test",
+		.owner = THIS_MODULE,
+		.of_match_table = spi_loopback_test_of_match,
+	},
+	.probe = spi_loopback_test_probe,
+};
+
+module_spi_driver(spi_loopback_test_driver);
+
+MODULE_AUTHOR("Martin Sperl <kernel@martin.sperl.org>");
+MODULE_DESCRIPTION("test spi_driver to check core functionality");
+MODULE_LICENSE("GPL");
+
+/*-------------------------------------------------------------------------*/
+
+/* spi_test implementation */
+
+#define RANGE_CHECK(ptr, plen, start, slen) \
+	((ptr >= start) && (ptr + plen <= start + slen))
+
+/* we allocate one page more, to allow for offsets */
+#define SPI_TEST_MAX_SIZE_PLUS (SPI_TEST_MAX_SIZE + PAGE_SIZE)
+
+static void spi_test_print_hex_dump(char *pre, const void *ptr, size_t len)
+{
+	/* limit the hex_dump */
+	if (len < 1024) {
+		print_hex_dump(KERN_INFO, pre,
+			       DUMP_PREFIX_OFFSET, 16, 1,
+			       ptr, len, 0);
+		return;
+	}
+	/* print head */
+	print_hex_dump(KERN_INFO, pre,
+		       DUMP_PREFIX_OFFSET, 16, 1,
+		       ptr, 512, 0);
+	/* print tail */
+	pr_info("%s truncated - continuing at offset %04zx\n",
+		pre, len - 512);
+	print_hex_dump(KERN_INFO, pre,
+		       DUMP_PREFIX_OFFSET, 16, 1,
+		       ptr + (len - 512), 512, 0);
+}
+
+static void spi_test_dump_message(struct spi_device *spi,
+				  struct spi_message *msg,
+				  bool dump_data)
+{
+	struct spi_transfer *xfer;
+	int i;
+	u8 b;
+
+	dev_info(&spi->dev, "  spi_msg@%pK\n", msg);
+	if (msg->status)
+		dev_info(&spi->dev, "    status:        %i\n",
+			 msg->status);
+	dev_info(&spi->dev, "    frame_length:  %i\n",
+		 msg->frame_length);
+	dev_info(&spi->dev, "    actual_length: %i\n",
+		 msg->actual_length);
+
+	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		dev_info(&spi->dev, "    spi_transfer@%pK\n", xfer);
+		dev_info(&spi->dev, "      len:    %i\n", xfer->len);
+		dev_info(&spi->dev, "      tx_buf: %pK\n", xfer->tx_buf);
+		if (dump_data && xfer->tx_buf)
+			spi_test_print_hex_dump("          TX: ",
+						xfer->tx_buf,
+						xfer->len);
+
+		dev_info(&spi->dev, "      rx_buf: %pK\n", xfer->rx_buf);
+		if (dump_data && xfer->rx_buf)
+			spi_test_print_hex_dump("          RX: ",
+						xfer->rx_buf,
+						xfer->len);
+		/* check for unwritten test pattern on rx_buf */
+		if (xfer->rx_buf) {
+			for (i = 0 ; i < xfer->len ; i++) {
+				b = ((u8 *)xfer->rx_buf)[xfer->len - 1 - i];
+				if (b != SPI_TEST_PATTERN_UNWRITTEN)
+					break;
+			}
+			if (i)
+				dev_info(&spi->dev,
+					 "      rx_buf filled with %02x starts at offset: %i\n",
+					 SPI_TEST_PATTERN_UNWRITTEN,
+					 xfer->len - i);
+		}
+	}
+}
+
+struct rx_ranges {
+	struct list_head list;
+	u8 *start;
+	u8 *end;
+};
+
+int rx_ranges_cmp(void *priv, struct list_head *a, struct list_head *b)
+{
+	struct rx_ranges *rx_a = list_entry(a, struct rx_ranges, list);
+	struct rx_ranges *rx_b = list_entry(b, struct rx_ranges, list);
+
+	if (rx_a->start > rx_b->start)
+		return 1;
+	if (rx_a->start < rx_b->start)
+		return -1;
+	return 0;
+}
+
+static int spi_check_rx_ranges(struct spi_device *spi,
+			       struct spi_message *msg,
+			       void *rx)
+{
+	struct spi_transfer *xfer;
+	struct rx_ranges ranges[SPI_TEST_MAX_TRANSFERS], *r;
+	int i = 0;
+	LIST_HEAD(ranges_list);
+	u8 *addr;
+	int ret = 0;
+
+	/* loop over all transfers to fill in the rx_ranges */
+	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		/* if there is no rx, then no check is needed */
+		if (!xfer->rx_buf)
+			continue;
+		/* fill in the rx_range */
+		if (RANGE_CHECK(xfer->rx_buf, xfer->len,
+				rx, SPI_TEST_MAX_SIZE_PLUS)) {
+			ranges[i].start = xfer->rx_buf;
+			ranges[i].end = xfer->rx_buf + xfer->len;
+			list_add(&ranges[i].list, &ranges_list);
+			i++;
+		}
+	}
+
+	/* if no ranges, then we can return and avoid the checks...*/
+	if (!i)
+		return 0;
+
+	/* sort the list */
+	list_sort(NULL, &ranges_list, rx_ranges_cmp);
+
+	/* and iterate over all the rx addresses */
+	for (addr = rx; addr < (u8 *)rx + SPI_TEST_MAX_SIZE_PLUS; addr++) {
+		/* if we are the DO not write pattern,
+		 * then continue with the loop...
+		 */
+		if (*addr == SPI_TEST_PATTERN_DO_NOT_WRITE)
+			continue;
+
+		/* check if we are inside a range */
+		list_for_each_entry(r, &ranges_list, list) {
+			/* if so then set to end... */
+			if ((addr >= r->start) && (addr < r->end))
+				addr = r->end;
+		}
+		/* second test after a (hopefull) translation */
+		if (*addr == SPI_TEST_PATTERN_DO_NOT_WRITE)
+			continue;
+
+		/* if still not found then something has modified too much */
+		/* we could list the "closest" transfer here... */
+		dev_err(&spi->dev,
+			"loopback strangeness - rx changed outside of allowed range at: %pK\n",
+			addr);
+		/* do not return, only set ret,
+		 * so that we list all addresses
+		 */
+		ret = -ERANGE;
+	}
+
+	return ret;
+}
+
+static int spi_test_check_loopback_result(struct spi_device *spi,
+					  struct spi_message *msg,
+					  void *tx, void *rx)
+{
+	struct spi_transfer *xfer;
+	u8 rxb, txb;
+	size_t i;
+	int ret;
+
+	/* checks rx_buffer pattern are valid with loopback or without */
+	ret = spi_check_rx_ranges(spi, msg, rx);
+	if (ret)
+		return ret;
+
+	/* if we run without loopback, then return now */
+	if (!loopback)
+		return 0;
+
+	/* if applicable to transfer check that rx_buf is equal to tx_buf */
+	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		/* if there is no rx, then no check is needed */
+		if (!xfer->rx_buf)
+			continue;
+		/* so depending on tx_buf we need to handle things */
+		if (xfer->tx_buf) {
+			for (i = 1; i < xfer->len; i++) {
+				txb = ((u8 *)xfer->tx_buf)[i];
+				rxb = ((u8 *)xfer->rx_buf)[i];
+				if (txb != rxb)
+					goto mismatch_error;
+			}
+		} else {
+			/* first byte received */
+			txb = ((u8 *)xfer->rx_buf)[0];
+			/* first byte may be 0 or xff */
+			if (!((txb == 0) || (txb == 0xff))) {
+				dev_err(&spi->dev,
+					"loopback strangeness - we expect 0x00 or 0xff, but not 0x%02x\n",
+					txb);
+				return -EINVAL;
+			}
+			/* check that all bytes are identical */
+			for (i = 1; i < xfer->len; i++) {
+				rxb = ((u8 *)xfer->rx_buf)[i];
+				if (rxb != txb)
+					goto mismatch_error;
+			}
+		}
+	}
+
+	return 0;
+
+mismatch_error:
+	dev_err(&spi->dev,
+		"loopback strangeness - transfer missmatch on byte %04zx - expected 0x%02x, but got 0x%02x\n",
+		i, txb, rxb);
+
+	return -EINVAL;
+}
+
+static int spi_test_translate(struct spi_device *spi,
+			      void **ptr, size_t len,
+			      void *tx, void *rx)
+{
+	size_t off;
+
+	/* return on null */
+	if (!*ptr)
+		return 0;
+
+	/* in the MAX_SIZE_HALF case modify the pointer */
+	if (((size_t)*ptr) & SPI_TEST_MAX_SIZE_HALF)
+		/* move the pointer to the correct range */
+		*ptr += (SPI_TEST_MAX_SIZE_PLUS / 2) -
+			SPI_TEST_MAX_SIZE_HALF;
+
+	/* RX range
+	 * - we check against MAX_SIZE_PLUS to allow for automated alignment
+	 */
+	if (RANGE_CHECK(*ptr, len,  RX(0), SPI_TEST_MAX_SIZE_PLUS)) {
+		off = *ptr - RX(0);
+		*ptr = rx + off;
+
+		return 0;
+	}
+
+	/* TX range */
+	if (RANGE_CHECK(*ptr, len,  TX(0), SPI_TEST_MAX_SIZE_PLUS)) {
+		off = *ptr - TX(0);
+		*ptr = tx + off;
+
+		return 0;
+	}
+
+	dev_err(&spi->dev,
+		"PointerRange [%pK:%pK[ not in range [%pK:%pK[ or [%pK:%pK[\n",
+		*ptr, *ptr + len,
+		RX(0), RX(SPI_TEST_MAX_SIZE),
+		TX(0), TX(SPI_TEST_MAX_SIZE));
+
+	return -EINVAL;
+}
+
+static int spi_test_fill_pattern(struct spi_device *spi,
+				 struct spi_test *test)
+{
+	struct spi_transfer *xfers = test->transfers;
+	u8 *tx_buf;
+	size_t count = 0;
+	int i, j;
+
+#ifdef __BIG_ENDIAN
+#define GET_VALUE_BYTE(value, index, bytes) \
+	(value >> (8 * (bytes - 1 - count % bytes)))
+#else
+#define GET_VALUE_BYTE(value, index, bytes) \
+	(value >> (8 * (count % bytes)))
+#endif
+
+	/* fill all transfers with the pattern requested */
+	for (i = 0; i < test->transfer_count; i++) {
+		/* fill rx_buf with SPI_TEST_PATTERN_UNWRITTEN */
+		if (xfers[i].rx_buf)
+			memset(xfers[i].rx_buf, SPI_TEST_PATTERN_UNWRITTEN,
+			       xfers[i].len);
+		/* if tx_buf is NULL then skip */
+		tx_buf = (u8 *)xfers[i].tx_buf;
+		if (!tx_buf)
+			continue;
+		/* modify all the transfers */
+		for (j = 0; j < xfers[i].len; j++, tx_buf++, count++) {
+			/* fill tx */
+			switch (test->fill_option) {
+			case FILL_MEMSET_8:
+				*tx_buf = test->fill_pattern;
+				break;
+			case FILL_MEMSET_16:
+				*tx_buf = GET_VALUE_BYTE(test->fill_pattern,
+							 count, 2);
+				break;
+			case FILL_MEMSET_24:
+				*tx_buf = GET_VALUE_BYTE(test->fill_pattern,
+							 count, 3);
+				break;
+			case FILL_MEMSET_32:
+				*tx_buf = GET_VALUE_BYTE(test->fill_pattern,
+							 count, 4);
+				break;
+			case FILL_COUNT_8:
+				*tx_buf = count;
+				break;
+			case FILL_COUNT_16:
+				*tx_buf = GET_VALUE_BYTE(count, count, 2);
+				break;
+			case FILL_COUNT_24:
+				*tx_buf = GET_VALUE_BYTE(count, count, 3);
+				break;
+			case FILL_COUNT_32:
+				*tx_buf = GET_VALUE_BYTE(count, count, 4);
+				break;
+			case FILL_TRANSFER_BYTE_8:
+				*tx_buf = j;
+				break;
+			case FILL_TRANSFER_BYTE_16:
+				*tx_buf = GET_VALUE_BYTE(j, j, 2);
+				break;
+			case FILL_TRANSFER_BYTE_24:
+				*tx_buf = GET_VALUE_BYTE(j, j, 3);
+				break;
+			case FILL_TRANSFER_BYTE_32:
+				*tx_buf = GET_VALUE_BYTE(j, j, 4);
+				break;
+			case FILL_TRANSFER_NUM:
+				*tx_buf = i;
+				break;
+			default:
+				dev_err(&spi->dev,
+					"unsupported fill_option: %i\n",
+					test->fill_option);
+				return -EINVAL;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int _spi_test_run_iter(struct spi_device *spi,
+			      struct spi_test *test,
+			      void *tx, void *rx)
+{
+	struct spi_message *msg = &test->msg;
+	struct spi_transfer *x;
+	int i, ret;
+
+	/* initialize message - zero-filled via static initialization */
+	spi_message_init_no_memset(msg);
+
+	/* fill rx with the DO_NOT_WRITE pattern */
+	memset(rx, SPI_TEST_PATTERN_DO_NOT_WRITE, SPI_TEST_MAX_SIZE_PLUS);
+
+	/* add the individual transfers */
+	for (i = 0; i < test->transfer_count; i++) {
+		x = &test->transfers[i];
+
+		/* patch the values of tx_buf */
+		ret = spi_test_translate(spi, (void **)&x->tx_buf, x->len,
+					 (void *)tx, rx);
+		if (ret)
+			return ret;
+
+		/* patch the values of rx_buf */
+		ret = spi_test_translate(spi, &x->rx_buf, x->len,
+					 (void *)tx, rx);
+		if (ret)
+			return ret;
+
+		/* and add it to the list */
+		spi_message_add_tail(x, msg);
+	}
+
+	/* fill in the transfer buffers with pattern */
+	ret = spi_test_fill_pattern(spi, test);
+	if (ret)
+		return ret;
+
+	/* and execute */
+	if (test->execute_msg)
+		ret = test->execute_msg(spi, test, tx, rx);
+	else
+		ret = spi_test_execute_msg(spi, test, tx, rx);
+
+	/* handle result */
+	if (ret == test->expected_return)
+		return 0;
+
+	dev_err(&spi->dev,
+		"test failed - test returned %i, but we expect %i\n",
+		ret, test->expected_return);
+
+	if (ret)
+		return ret;
+
+	/* if it is 0, as we expected something else,
+	 * then return something special
+	 */
+	return -EFAULT;
+}
+
+static int spi_test_run_iter(struct spi_device *spi,
+			     const struct spi_test *testtemplate,
+			     void *tx, void *rx,
+			     size_t len,
+			     size_t tx_off,
+			     size_t rx_off
+	)
+{
+	struct spi_test test;
+	int i, tx_count, rx_count;
+
+	/* copy the test template to test */
+	memcpy(&test, testtemplate, sizeof(test));
+
+	/* set up test->transfers to the correct count */
+	if (!test.transfer_count) {
+		for (i = 0;
+		    (i < SPI_TEST_MAX_TRANSFERS) && test.transfers[i].len;
+		    i++) {
+			test.transfer_count++;
+		}
+	}
+
+	/* if iterate_transfer_mask is not set,
+	 * then set it to first transfer only
+	 */
+	if (!(test.iterate_transfer_mask & (BIT(test.transfer_count) - 1)))
+		test.iterate_transfer_mask = 1;
+
+	/* count number of transfers with tx/rx_buf != NULL */
+	for (i = 0; i < test.transfer_count; i++) {
+		if (test.transfers[i].tx_buf)
+			tx_count++;
+		if (test.transfers[i].rx_buf)
+			rx_count++;
+	}
+
+	/* in some iteration cases warn and exit early,
+	 * as there is nothing to do, that has not been tested already...
+	 */
+	if (tx_off && (!tx_count)) {
+		dev_warn_once(&spi->dev,
+			      "%s: iterate_tx_off configured with tx_buf==NULL - ignoring\n",
+			      test.description);
+		return 0;
+	}
+	if (rx_off && (!rx_count)) {
+		dev_warn_once(&spi->dev,
+			      "%s: iterate_rx_off configured with rx_buf==NULL - ignoring\n",
+			      test.description);
+		return 0;
+	}
+
+	/* write out info */
+	if (!(len || tx_off || rx_off)) {
+		dev_info(&spi->dev, "Running test %s\n", test.description);
+	} else {
+		dev_info(&spi->dev,
+			 "  with iteration values: len = %zu, tx_off = %zu, rx_off = %zu\n",
+			 len, tx_off, rx_off);
+	}
+
+	/* update in the values from iteration values */
+	for (i = 0; i < test.transfer_count; i++) {
+		/* only when bit in transfer mask is set */
+		if (!(test.iterate_transfer_mask & BIT(i)))
+			continue;
+		if (len)
+			test.transfers[i].len = len;
+		if (test.transfers[i].tx_buf)
+			test.transfers[i].tx_buf += tx_off;
+		if (test.transfers[i].tx_buf)
+			test.transfers[i].rx_buf += rx_off;
+	}
+
+	/* and execute */
+	return _spi_test_run_iter(spi, &test, tx, rx);
+}
+
+/**
+ * spi_test_execute_msg - default implementation to run a test
+ *
+ * spi: @spi_device on which to run the @spi_message
+ * test: the test to execute, which already contains @msg
+ * tx:   the tx buffer allocated for the test sequence
+ * rx:   the rx buffer allocated for the test sequence
+ *
+ * Returns: error code of spi_sync as well as basic error checking
+ */
+int spi_test_execute_msg(struct spi_device *spi, struct spi_test *test,
+			 void *tx, void *rx)
+{
+	struct spi_message *msg = &test->msg;
+	int ret = 0;
+	int i;
+
+	/* only if we do not simulate */
+	if (!simulate_only) {
+		/* dump the complete message before and after the transfer */
+		if (dump_messages == 3)
+			spi_test_dump_message(spi, msg, true);
+
+		/* run spi message */
+		ret = spi_sync(spi, msg);
+		if (ret == -ETIMEDOUT) {
+			dev_info(&spi->dev,
+				 "spi-message timed out - reruning...\n");
+			/* rerun after a few explicit schedules */
+			for (i = 0; i < 16; i++)
+				schedule();
+			ret = spi_sync(spi, msg);
+		}
+		if (ret) {
+			dev_err(&spi->dev,
+				"Failed to execute spi_message: %i\n",
+				ret);
+			goto exit;
+		}
+
+		/* do some extra error checks */
+		if (msg->frame_length != msg->actual_length) {
+			dev_err(&spi->dev,
+				"actual length differs from expected\n");
+			ret = -EIO;
+			goto exit;
+		}
+
+		/* run rx-buffer tests */
+		ret = spi_test_check_loopback_result(spi, msg, tx, rx);
+	}
+
+	/* if requested or on error dump message (including data) */
+exit:
+	if (dump_messages || ret)
+		spi_test_dump_message(spi, msg,
+				      (dump_messages >= 2) || (ret));
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(spi_test_execute_msg);
+
+/**
+ * spi_test_run_test - run an individual spi_test
+ *                     including all the relevant iterations on:
+ *                     length and buffer alignment
+ *
+ * spi:  the spi_device to send the messages to
+ * test: the test which we need to execute
+ * tx:   the tx buffer allocated for the test sequence
+ * rx:   the rx buffer allocated for the test sequence
+ *
+ * Returns: status code of spi_sync or other failures
+ */
+
+int spi_test_run_test(struct spi_device *spi, const struct spi_test *test,
+		      void *tx, void *rx)
+{
+	int idx_len;
+	size_t len;
+	size_t tx_align, rx_align;
+	int ret;
+
+	/* test for transfer limits */
+	if (test->transfer_count >= SPI_TEST_MAX_TRANSFERS) {
+		dev_err(&spi->dev,
+			"%s: Exceeded max number of transfers with %i\n",
+			test->description, test->transfer_count);
+		return -E2BIG;
+	}
+
+	/* setting up some values in spi_message
+	 * based on some settings in spi_master
+	 * some of this can also get done in the run() method
+	 */
+
+	/* iterate over all the iterable values using macros
+	 * (to make it a bit more readable...
+	 */
+#define FOR_EACH_ITERATE(var, defaultvalue)				\
+	for (idx_##var = -1, var = defaultvalue;			\
+	     ((idx_##var < 0) ||					\
+		     (							\
+			     (idx_##var < SPI_TEST_MAX_ITERATE) &&	\
+			     (var = test->iterate_##var[idx_##var])	\
+		     )							\
+	     );								\
+	     idx_##var++)
+#define FOR_EACH_ALIGNMENT(var)						\
+	for (var = 0;							\
+	    var < (test->iterate_##var ?				\
+			(spi->master->dma_alignment ?			\
+			 spi->master->dma_alignment :			\
+			 test->iterate_##var) :				\
+			1);						\
+	    var++)
+
+	FOR_EACH_ITERATE(len, 0) {
+		FOR_EACH_ALIGNMENT(tx_align) {
+			FOR_EACH_ALIGNMENT(rx_align) {
+				/* and run the iteration */
+				ret = spi_test_run_iter(spi, test,
+							tx, rx,
+							len,
+							tx_align,
+							rx_align);
+				if (ret)
+					return ret;
+			}
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(spi_test_run_test);
+
+/**
+ * spi_test_run_tests - run an array of spi_messages tests
+ * @spi: the spi device on which to run the tests
+ * @tests: NULL-terminated array of @spi_test
+ *
+ * Returns: status errors as per @spi_test_run_test()
+ */
+
+int spi_test_run_tests(struct spi_device *spi,
+		       struct spi_test *tests)
+{
+	char *rx = NULL, *tx = NULL;
+	int ret = 0, count = 0;
+	struct spi_test *test;
+
+	/* allocate rx/tx buffers of 128kB size without devm
+	 * in the hope that is on a page boundary
+	 */
+	rx = kzalloc(SPI_TEST_MAX_SIZE_PLUS, GFP_KERNEL);
+	if (!rx) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	tx = kzalloc(SPI_TEST_MAX_SIZE_PLUS, GFP_KERNEL);
+	if (!tx) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	/* now run the individual tests in the table */
+	for (test = tests, count = 0; test->description[0];
+	     test++, count++) {
+		/* only run test if requested */
+		if ((run_only_test > -1) && (count != run_only_test))
+			continue;
+		/* run custom implementation */
+		if (test->run_test)
+			ret = test->run_test(spi, test, tx, rx);
+		else
+			ret = spi_test_run_test(spi, test, tx, rx);
+		if (ret)
+			goto out;
+		/* add some delays so that we can easily
+		 * detect the individual tests when using a logic analyzer
+		 * we also add scheduling to avoid potential spi_timeouts...
+		 */
+		mdelay(100);
+		schedule();
+	}
+
+out:
+	kfree(rx);
+	kfree(tx);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(spi_test_run_tests);
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 7840067062a8..0be89e052428 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -95,8 +95,7 @@ struct mtk_spi {
 	const struct mtk_spi_compatible *dev_comp;
 };
 
-static const struct mtk_spi_compatible mt6589_compat;
-static const struct mtk_spi_compatible mt8135_compat;
+static const struct mtk_spi_compatible mtk_common_compat;
 static const struct mtk_spi_compatible mt8173_compat = {
 	.need_pad_sel = true,
 	.must_tx = true,
@@ -112,9 +111,18 @@ static const struct mtk_chip_config mtk_default_chip_info = {
 };
 
 static const struct of_device_id mtk_spi_of_match[] = {
-	{ .compatible = "mediatek,mt6589-spi", .data = (void *)&mt6589_compat },
-	{ .compatible = "mediatek,mt8135-spi", .data = (void *)&mt8135_compat },
-	{ .compatible = "mediatek,mt8173-spi", .data = (void *)&mt8173_compat },
+	{ .compatible = "mediatek,mt2701-spi",
+		.data = (void *)&mtk_common_compat,
+	},
+	{ .compatible = "mediatek,mt6589-spi",
+		.data = (void *)&mtk_common_compat,
+	},
+	{ .compatible = "mediatek,mt8135-spi",
+		.data = (void *)&mtk_common_compat,
+	},
+	{ .compatible = "mediatek,mt8173-spi",
+		.data = (void *)&mt8173_compat,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, mtk_spi_of_match);
@@ -154,9 +162,6 @@ static int mtk_spi_prepare_message(struct spi_master *master,
 		reg_val |= SPI_CMD_CPOL;
 	else
 		reg_val &= ~SPI_CMD_CPOL;
-	writel(reg_val, mdata->base + SPI_CMD_REG);
-
-	reg_val = readl(mdata->base + SPI_CMD_REG);
 
 	/* set the mlsbx and mlsbtx */
 	if (chip_config->tx_mlsb)
@@ -323,7 +328,8 @@ static int mtk_spi_fifo_transfer(struct spi_master *master,
 				 struct spi_device *spi,
 				 struct spi_transfer *xfer)
 {
-	int cnt;
+	int cnt, remainder;
+	u32 reg_val;
 	struct mtk_spi *mdata = spi_master_get_devdata(master);
 
 	mdata->cur_transfer = xfer;
@@ -331,12 +337,16 @@ static int mtk_spi_fifo_transfer(struct spi_master *master,
 	mtk_spi_prepare_transfer(master, xfer);
 	mtk_spi_setup_packet(master);
 
-	if (xfer->len % 4)
-		cnt = xfer->len / 4 + 1;
-	else
-		cnt = xfer->len / 4;
+	cnt = xfer->len / 4;
 	iowrite32_rep(mdata->base + SPI_TX_DATA_REG, xfer->tx_buf, cnt);
 
+	remainder = xfer->len % 4;
+	if (remainder > 0) {
+		reg_val = 0;
+		memcpy(&reg_val, xfer->tx_buf + (cnt * 4), remainder);
+		writel(reg_val, mdata->base + SPI_TX_DATA_REG);
+	}
+
 	mtk_spi_enable_transfer(master);
 
 	return 1;
@@ -418,7 +428,7 @@ static int mtk_spi_setup(struct spi_device *spi)
 
 static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
 {
-	u32 cmd, reg_val, cnt;
+	u32 cmd, reg_val, cnt, remainder;
 	struct spi_master *master = dev_id;
 	struct mtk_spi *mdata = spi_master_get_devdata(master);
 	struct spi_transfer *trans = mdata->cur_transfer;
@@ -431,12 +441,15 @@ static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
 
 	if (!master->can_dma(master, master->cur_msg->spi, trans)) {
 		if (trans->rx_buf) {
-			if (mdata->xfer_len % 4)
-				cnt = mdata->xfer_len / 4 + 1;
-			else
-				cnt = mdata->xfer_len / 4;
+			cnt = mdata->xfer_len / 4;
 			ioread32_rep(mdata->base + SPI_RX_DATA_REG,
 				     trans->rx_buf, cnt);
+			remainder = mdata->xfer_len % 4;
+			if (remainder > 0) {
+				reg_val = readl(mdata->base + SPI_RX_DATA_REG);
+				memcpy(trans->rx_buf + (cnt * 4),
+					&reg_val, remainder);
+			}
 		}
 		spi_finalize_current_transfer(master);
 		return IRQ_HANDLED;
@@ -610,7 +623,8 @@ static int mtk_spi_probe(struct platform_device *pdev)
 	ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to clk_set_parent (%d)\n", ret);
-		goto err_disable_clk;
+		clk_disable_unprepare(mdata->spi_clk);
+		goto err_put_master;
 	}
 
 	clk_disable_unprepare(mdata->spi_clk);
@@ -620,7 +634,7 @@ static int mtk_spi_probe(struct platform_device *pdev)
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register master (%d)\n", ret);
-		goto err_put_master;
+		goto err_disable_runtime_pm;
 	}
 
 	if (mdata->dev_comp->need_pad_sel) {
@@ -629,14 +643,14 @@ static int mtk_spi_probe(struct platform_device *pdev)
 				"pad_num does not match num_chipselect(%d != %d)\n",
 				mdata->pad_num, master->num_chipselect);
 			ret = -EINVAL;
-			goto err_put_master;
+			goto err_disable_runtime_pm;
 		}
 
 		if (!master->cs_gpios && master->num_chipselect > 1) {
 			dev_err(&pdev->dev,
 				"cs_gpios not specified and num_chipselect > 1\n");
 			ret = -EINVAL;
-			goto err_put_master;
+			goto err_disable_runtime_pm;
 		}
 
 		if (master->cs_gpios) {
@@ -647,7 +661,7 @@ static int mtk_spi_probe(struct platform_device *pdev)
 				if (ret) {
 					dev_err(&pdev->dev,
 						"can't get CS GPIO %i\n", i);
-					goto err_put_master;
+					goto err_disable_runtime_pm;
 				}
 			}
 		}
@@ -655,8 +669,8 @@ static int mtk_spi_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_disable_clk:
-	clk_disable_unprepare(mdata->spi_clk);
+err_disable_runtime_pm:
+	pm_runtime_disable(&pdev->dev);
 err_put_master:
 	spi_master_put(master);
 
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 1f8903d356e5..7273820275e9 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -24,6 +24,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 #include <linux/omap-dma.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/err.h>
 #include <linux/clk.h>
@@ -1024,6 +1025,16 @@ static int omap2_mcspi_setup(struct spi_device *spi)
 		spi->controller_state = cs;
 		/* Link this to context save list */
 		list_add_tail(&cs->node, &ctx->cs);
+
+		if (gpio_is_valid(spi->cs_gpio)) {
+			ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
+			if (ret) {
+				dev_err(&spi->dev, "failed to request gpio\n");
+				return ret;
+			}
+			gpio_direction_output(spi->cs_gpio,
+					 !(spi->mode & SPI_CS_HIGH));
+		}
 	}
 
 	if (!mcspi_dma->dma_rx || !mcspi_dma->dma_tx) {
@@ -1032,15 +1043,6 @@ static int omap2_mcspi_setup(struct spi_device *spi)
 			return ret;
 	}
 
-	if (gpio_is_valid(spi->cs_gpio)) {
-		ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));
-		if (ret) {
-			dev_err(&spi->dev, "failed to request gpio\n");
-			return ret;
-		}
-		gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
-	}
-
 	ret = pm_runtime_get_sync(mcspi->dev);
 	if (ret < 0)
 		return ret;
@@ -1536,14 +1538,23 @@ static int omap2_mcspi_resume(struct device *dev)
 	}
 	pm_runtime_mark_last_busy(mcspi->dev);
 	pm_runtime_put_autosuspend(mcspi->dev);
-	return 0;
+
+	return pinctrl_pm_select_default_state(dev);
+}
+
+static int omap2_mcspi_suspend(struct device *dev)
+{
+	return pinctrl_pm_select_sleep_state(dev);
 }
+
 #else
+#define omap2_mcspi_suspend	NULL
 #define	omap2_mcspi_resume	NULL
 #endif
 
 static const struct dev_pm_ops omap2_mcspi_pm_ops = {
 	.resume = omap2_mcspi_resume,
+	.suspend = omap2_mcspi_suspend,
 	.runtime_resume	= omap_mcspi_runtime_resume,
 };
 
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index b25dc71b0ea9..ab9914ad8365 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1567,9 +1567,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
 	if (!is_quark_x1000_ssp(drv_data))
 		pxa2xx_spi_write(drv_data, SSPSP, 0);
 
-	if (is_lpss_ssp(drv_data))
-		lpss_ssp_setup(drv_data);
-
 	if (is_lpss_ssp(drv_data)) {
 		lpss_ssp_setup(drv_data);
 		config = lpss_get_config(drv_data);
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 8e86e7f6663a..5a76a50063b5 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -133,7 +133,6 @@
 struct s3c64xx_spi_dma_data {
 	struct dma_chan *ch;
 	enum dma_transfer_direction direction;
-	unsigned int dmach;
 };
 
 /**
@@ -325,7 +324,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
 
 		/* Acquire DMA channels */
 		sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-				   (void *)(long)sdd->rx_dma.dmach, dev, "rx");
+				   sdd->cntrlr_info->dma_rx, dev, "rx");
 		if (!sdd->rx_dma.ch) {
 			dev_err(dev, "Failed to get RX DMA channel\n");
 			ret = -EBUSY;
@@ -334,7 +333,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
 		spi->dma_rx = sdd->rx_dma.ch;
 
 		sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter,
-				   (void *)(long)sdd->tx_dma.dmach, dev, "tx");
+				   sdd->cntrlr_info->dma_tx, dev, "tx");
 		if (!sdd->tx_dma.ch) {
 			dev_err(dev, "Failed to get TX DMA channel\n");
 			ret = -EBUSY;
@@ -1028,7 +1027,6 @@ static inline struct s3c64xx_spi_port_config *s3c64xx_spi_get_port_config(
 static int s3c64xx_spi_probe(struct platform_device *pdev)
 {
 	struct resource	*mem_res;
-	struct resource	*res;
 	struct s3c64xx_spi_driver_data *sdd;
 	struct s3c64xx_spi_info *sci = dev_get_platdata(&pdev->dev);
 	struct spi_master *master;
@@ -1087,20 +1085,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 
 	sdd->cur_bpw = 8;
 
-	if (!sdd->pdev->dev.of_node) {
-		res = platform_get_resource(pdev, IORESOURCE_DMA,  0);
-		if (!res) {
-			dev_warn(&pdev->dev, "Unable to get SPI tx dma resource. Switching to poll mode\n");
-			sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
-		} else
-			sdd->tx_dma.dmach = res->start;
-
-		res = platform_get_resource(pdev, IORESOURCE_DMA,  1);
-		if (!res) {
-			dev_warn(&pdev->dev, "Unable to get SPI rx dma resource. Switching to poll mode\n");
-			sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
-		} else
-			sdd->rx_dma.dmach = res->start;
+	if (!sdd->pdev->dev.of_node && (!sci->dma_tx || !sci->dma_rx)) {
+		dev_warn(&pdev->dev, "Unable to get SPI tx/rx DMA data. Switching to poll mode\n");
+		sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
 	}
 
 	sdd->tx_dma.direction = DMA_MEM_TO_DEV;
@@ -1197,9 +1184,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n",
 					sdd->port_id, master->num_chipselect);
-	dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%d, Tx-%d]\n",
+	dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%p, Tx-%p]\n",
 					mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1,
-					sdd->rx_dma.dmach, sdd->tx_dma.dmach);
+					sci->dma_rx, sci->dma_tx);
 
 	pm_runtime_mark_last_busy(&pdev->dev);
 	pm_runtime_put_autosuspend(&pdev->dev);
@@ -1370,12 +1357,6 @@ static const struct platform_device_id s3c64xx_spi_driver_ids[] = {
 	}, {
 		.name		= "s3c6410-spi",
 		.driver_data	= (kernel_ulong_t)&s3c6410_spi_port_config,
-	}, {
-		.name		= "s5pv210-spi",
-		.driver_data	= (kernel_ulong_t)&s5pv210_spi_port_config,
-	}, {
-		.name		= "exynos4210-spi",
-		.driver_data	= (kernel_ulong_t)&exynos4_spi_port_config,
 	},
 	{ },
 };
diff --git a/drivers/spi/spi-sun4i.c b/drivers/spi/spi-sun4i.c
index fbb0a4d74e91..1ddd9e2309b6 100644
--- a/drivers/spi/spi-sun4i.c
+++ b/drivers/spi/spi-sun4i.c
@@ -140,6 +140,9 @@ static void sun4i_spi_set_cs(struct spi_device *spi, bool enable)
 	reg &= ~SUN4I_CTL_CS_MASK;
 	reg |= SUN4I_CTL_CS(spi->chip_select);
 
+	/* We want to control the chip select manually */
+	reg |= SUN4I_CTL_CS_MANUAL;
+
 	if (enable)
 		reg |= SUN4I_CTL_CS_LEVEL;
 	else
@@ -222,15 +225,12 @@ static int sun4i_spi_transfer_one(struct spi_master *master,
 	else
 		reg |= SUN4I_CTL_DHB;
 
-	/* We want to control the chip select manually */
-	reg |= SUN4I_CTL_CS_MANUAL;
-
 	sun4i_spi_write(sspi, SUN4I_CTL_REG, reg);
 
 	/* Ensure that we have a parent clock fast enough */
 	mclk_rate = clk_get_rate(sspi->mclk);
-	if (mclk_rate < (2 * spi->max_speed_hz)) {
-		clk_set_rate(sspi->mclk, 2 * spi->max_speed_hz);
+	if (mclk_rate < (2 * tfr->speed_hz)) {
+		clk_set_rate(sspi->mclk, 2 * tfr->speed_hz);
 		mclk_rate = clk_get_rate(sspi->mclk);
 	}
 
@@ -248,14 +248,14 @@ static int sun4i_spi_transfer_one(struct spi_master *master,
 	 * First try CDR2, and if we can't reach the expected
 	 * frequency, fall back to CDR1.
 	 */
-	div = mclk_rate / (2 * spi->max_speed_hz);
+	div = mclk_rate / (2 * tfr->speed_hz);
 	if (div <= (SUN4I_CLK_CTL_CDR2_MASK + 1)) {
 		if (div > 0)
 			div--;
 
 		reg = SUN4I_CLK_CTL_CDR2(div) | SUN4I_CLK_CTL_DRS;
 	} else {
-		div = ilog2(mclk_rate) - ilog2(spi->max_speed_hz);
+		div = ilog2(mclk_rate) - ilog2(tfr->speed_hz);
 		reg = SUN4I_CLK_CTL_CDR1(div);
 	}
 
diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
index ac48f59705a8..42e2c4bd690a 100644
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -217,8 +217,8 @@ static int sun6i_spi_transfer_one(struct spi_master *master,
 
 	/* Ensure that we have a parent clock fast enough */
 	mclk_rate = clk_get_rate(sspi->mclk);
-	if (mclk_rate < (2 * spi->max_speed_hz)) {
-		clk_set_rate(sspi->mclk, 2 * spi->max_speed_hz);
+	if (mclk_rate < (2 * tfr->speed_hz)) {
+		clk_set_rate(sspi->mclk, 2 * tfr->speed_hz);
 		mclk_rate = clk_get_rate(sspi->mclk);
 	}
 
@@ -236,14 +236,14 @@ static int sun6i_spi_transfer_one(struct spi_master *master,
 	 * First try CDR2, and if we can't reach the expected
 	 * frequency, fall back to CDR1.
 	 */
-	div = mclk_rate / (2 * spi->max_speed_hz);
+	div = mclk_rate / (2 * tfr->speed_hz);
 	if (div <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) {
 		if (div > 0)
 			div--;
 
 		reg = SUN6I_CLK_CTL_CDR2(div) | SUN6I_CLK_CTL_DRS;
 	} else {
-		div = ilog2(mclk_rate) - ilog2(spi->max_speed_hz);
+		div = ilog2(mclk_rate) - ilog2(tfr->speed_hz);
 		reg = SUN6I_CLK_CTL_CDR1(div);
 	}
 
diff --git a/drivers/spi/spi-test.h b/drivers/spi/spi-test.h
new file mode 100644
index 000000000000..922c52833239
--- /dev/null
+++ b/drivers/spi/spi-test.h
@@ -0,0 +1,136 @@
+/*
+ *  linux/drivers/spi/spi-test.h
+ *
+ *  (c) Martin Sperl <kernel@martin.sperl.org>
+ *
+ *  spi_test definitions
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#include <linux/spi/spi.h>
+
+#define SPI_TEST_MAX_TRANSFERS 4
+#define SPI_TEST_MAX_SIZE (32 * PAGE_SIZE)
+#define SPI_TEST_MAX_ITERATE 32
+
+/* the "dummy" start addresses used in spi_test
+ * these addresses get translated at a later stage
+ */
+#define RX_START	BIT(30)
+#define TX_START	BIT(31)
+#define RX(off)		((void *)(RX_START + off))
+#define TX(off)		((void *)(TX_START + off))
+
+/* some special defines for offsets */
+#define SPI_TEST_MAX_SIZE_HALF	BIT(29)
+
+/* detection pattern for unfinished reads...
+ * - 0x00 or 0xff could be valid levels for tx_buf = NULL,
+ * so we do not use either of them
+ */
+#define SPI_TEST_PATTERN_UNWRITTEN 0xAA
+#define SPI_TEST_PATTERN_DO_NOT_WRITE 0x55
+#define SPI_TEST_CHECK_DO_NOT_WRITE 64
+
+/**
+ * struct spi_test - describes a specific (set of) tests to execute
+ *
+ * @description:      description of the test
+ *
+ * @msg:              a template @spi_message usedfor the default settings
+ * @transfers:        array of @spi_transfers that are part of the
+ *                    resulting spi_message. The first transfer with len == 0
+ *                    signifies the end of the list
+ * @transfer_count:   normally computed number of transfers with len > 0
+ *
+ * @run_test:         run a specific spi_test - this allows to override
+ *                    the default implementation of @spi_test_run_transfer
+ *                    either to add some custom filters for a specific test
+ *                    or to effectively run some very custom tests...
+ * @execute_msg:      run the spi_message for real - this allows to override
+ *                    @spi_test_execute_msg to apply final modifications
+ *                    on the spi_message
+ * @expected_return:  the expected return code - in some cases we want to
+ *                    test also for error conditions
+ *
+ * @iterate_len:      list of length to iterate on (in addition to the
+ *                    explicitly set @spi_transfer.len)
+ * @iterate_tx_align: change the alignment of @spi_transfer.tx_buf
+ *                    for all values in the below range if set.
+ *                    the ranges are:
+ *                    [0 : @spi_master.dma_alignment[ if set
+ *                    [0 : iterate_tx_align[ if unset
+ * @iterate_rx_align: change the alignment of @spi_transfer.rx_buf
+ *                    see @iterate_tx_align for details
+ * @iterate_transfer_mask: the bitmask of transfers to which the iterations
+ *                         apply - if 0, then it applies to all transfer
+ *
+ * @fill_option:      define the way how tx_buf is filled
+ * @fill_pattern:     fill pattern to apply to the tx_buf
+ *                    (used in some of the @fill_options)
+ */
+
+struct spi_test {
+	char description[64];
+	struct spi_message msg;
+	struct spi_transfer transfers[SPI_TEST_MAX_TRANSFERS];
+	unsigned int transfer_count;
+	int (*run_test)(struct spi_device *spi, struct spi_test *test,
+			void *tx, void *rx);
+	int (*execute_msg)(struct spi_device *spi, struct spi_test *test,
+			   void *tx, void *rx);
+	int expected_return;
+	/* iterate over all the non-zero values */
+	int iterate_len[SPI_TEST_MAX_ITERATE];
+	int iterate_tx_align;
+	int iterate_rx_align;
+	u32 iterate_transfer_mask;
+	/* the tx-fill operation */
+	u32 fill_option;
+#define FILL_MEMSET_8	0	/* just memset with 8 bit */
+#define FILL_MEMSET_16	1	/* just memset with 16 bit */
+#define FILL_MEMSET_24	2	/* just memset with 24 bit */
+#define FILL_MEMSET_32	3	/* just memset with 32 bit */
+#define FILL_COUNT_8	4	/* fill with a 8 byte counter */
+#define FILL_COUNT_16	5	/* fill with a 16 bit counter */
+#define FILL_COUNT_24	6	/* fill with a 24 bit counter */
+#define FILL_COUNT_32	7	/* fill with a 32 bit counter */
+#define FILL_TRANSFER_BYTE_8  8	/* fill with the transfer byte - 8 bit */
+#define FILL_TRANSFER_BYTE_16 9	/* fill with the transfer byte - 16 bit */
+#define FILL_TRANSFER_BYTE_24 10 /* fill with the transfer byte - 24 bit */
+#define FILL_TRANSFER_BYTE_32 11 /* fill with the transfer byte - 32 bit */
+#define FILL_TRANSFER_NUM     16 /* fill with the transfer number */
+	u32 fill_pattern;
+};
+
+/* default implementation for @spi_test.run_test */
+int spi_test_run_test(struct spi_device *spi,
+		      const struct spi_test *test,
+		      void *tx, void *rx);
+
+/* default implementation for @spi_test.execute_msg */
+int spi_test_execute_msg(struct spi_device *spi,
+			 struct spi_test *test,
+			 void *tx, void *rx);
+
+/* function to execute a set of tests */
+int spi_test_run_tests(struct spi_device *spi,
+		       struct spi_test *tests);
+
+/* some of the default @spi_transfer.len to test */
+#define ITERATE_LEN 2, 3, 7, 11, 16, 31, 32, 64, 97, 128, 251, 256, \
+		1021, 1024, 1031, 4093, PAGE_SIZE, 4099, 65536, 65537
+
+#define ITERATE_MAX_LEN ITERATE_LEN, SPI_TEST_MAX_SIZE - 1, SPI_TEST_MAX_SIZE
+
+/* the default alignment to test */
+#define ITERATE_ALIGN sizeof(int)
diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c
index f23f36ebaf3d..aab9b492c627 100644
--- a/drivers/spi/spi-zynqmp-gqspi.c
+++ b/drivers/spi/spi-zynqmp-gqspi.c
@@ -917,9 +917,7 @@ static int zynqmp_qspi_start_transfer(struct spi_master *master,
  */
 static int __maybe_unused zynqmp_qspi_suspend(struct device *dev)
 {
-	struct platform_device *pdev = container_of(dev,
-						    struct platform_device,
-						    dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct spi_master *master = platform_get_drvdata(pdev);
 
 	spi_master_suspend(master);
@@ -940,9 +938,7 @@ static int __maybe_unused zynqmp_qspi_suspend(struct device *dev)
  */
 static int __maybe_unused zynqmp_qspi_resume(struct device *dev)
 {
-	struct platform_device *pdev = container_of(dev,
-						    struct platform_device,
-						    dev);
+	struct platform_device *pdev = to_platform_device(dev);
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct zynqmp_qspi *xqspi = spi_master_get_devdata(master);
 	int ret = 0;
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index dee1cb87d24f..47eff8012a77 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -84,8 +84,7 @@ static ssize_t spi_device_##field##_show(struct device *dev,		\
 					 struct device_attribute *attr,	\
 					char *buf)			\
 {									\
-	struct spi_device *spi = container_of(dev,			\
-					      struct spi_device, dev);	\
+	struct spi_device *spi = to_spi_device(dev);			\
 	return spi_statistics_##field##_show(&spi->statistics, buf);	\
 }									\
 static struct device_attribute dev_attr_spi_device_##field = {		\
@@ -605,6 +604,24 @@ struct spi_device *spi_new_device(struct spi_master *master,
 }
 EXPORT_SYMBOL_GPL(spi_new_device);
 
+/**
+ * spi_unregister_device - unregister a single SPI device
+ * @spi: spi_device to unregister
+ *
+ * Start making the passed SPI device vanish. Normally this would be handled
+ * by spi_unregister_master().
+ */
+void spi_unregister_device(struct spi_device *spi)
+{
+	if (!spi)
+		return;
+
+	if (spi->dev.of_node)
+		of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
+	device_unregister(&spi->dev);
+}
+EXPORT_SYMBOL_GPL(spi_unregister_device);
+
 static void spi_match_master_to_boardinfo(struct spi_master *master,
 				struct spi_board_info *bi)
 {
@@ -1548,6 +1565,8 @@ static void of_register_spi_devices(struct spi_master *master)
 		return;
 
 	for_each_available_child_of_node(master->dev.of_node, nc) {
+		if (of_node_test_and_set_flag(nc, OF_POPULATED))
+			continue;
 		spi = of_register_spi_device(master, nc);
 		if (IS_ERR(spi))
 			dev_warn(&master->dev, "Failed to create SPI device for %s\n",
@@ -1623,6 +1642,9 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
 		return AE_OK;
 	}
 
+	if (spi->irq < 0)
+		spi->irq = acpi_dev_gpio_irq_get(adev, 0);
+
 	adev->power.flags.ignore_parent = true;
 	strlcpy(spi->modalias, acpi_device_hid(adev), sizeof(spi->modalias));
 	if (spi_add_device(spi)) {
@@ -2633,6 +2655,11 @@ static int of_spi_notify(struct notifier_block *nb, unsigned long action,
 		if (master == NULL)
 			return NOTIFY_OK;	/* not for us */
 
+		if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) {
+			put_device(&master->dev);
+			return NOTIFY_OK;
+		}
+
 		spi = of_register_spi_device(master, rd->dn);
 		put_device(&master->dev);
 
@@ -2644,6 +2671,10 @@ static int of_spi_notify(struct notifier_block *nb, unsigned long action,
 		break;
 
 	case OF_RECONFIG_CHANGE_REMOVE:
+		/* already depopulated? */
+		if (!of_node_check_flag(rd->dn, OF_POPULATED))
+			return NOTIFY_OK;
+
 		/* find our device by node */
 		spi = of_find_spi_device_by_node(rd->dn);
 		if (spi == NULL)
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index d0e7dfc647cf..e3c19f30f591 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -284,7 +284,7 @@ static int spidev_message(struct spidev_data *spidev,
 			k_tmp->speed_hz = spidev->speed_hz;
 #ifdef VERBOSE
 		dev_dbg(&spidev->spi->dev,
-			"  xfer len %zd %s%s%s%dbits %u usec %uHz\n",
+			"  xfer len %u %s%s%s%dbits %u usec %uHz\n",
 			u_tmp->len,
 			u_tmp->rx_buf ? "rx " : "",
 			u_tmp->tx_buf ? "tx " : "",
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
index 8f3ac37bfe12..64d8c8720960 100644
--- a/drivers/staging/android/TODO
+++ b/drivers/staging/android/TODO
@@ -25,5 +25,13 @@ ion/
    exposes existing cma regions and doesn't reserve unecessarily memory when
    booting a system which doesn't use ion.
 
+sync framework:
+ - remove CONFIG_SW_SYNC_USER, it is used only for testing/debugging and
+ should not be upstreamed.
+ - port CONFIG_SW_SYNC_USER tests interfaces to use debugfs somehow
+ - port libsync tests to kselftest
+ - clean up and ABI check for security issues
+ - move it to drivers/base/dma-buf
+
 Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc:
 Arve Hjønnevåg <arve@android.com> and Riley Andrews <riandrews@android.com>
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 3f2a3d611e4b..5bb1283d19cd 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -831,14 +831,14 @@ static struct miscdevice ashmem_misc = {
 
 static int __init ashmem_init(void)
 {
-	int ret;
+	int ret = -ENOMEM;
 
 	ashmem_area_cachep = kmem_cache_create("ashmem_area_cache",
 					       sizeof(struct ashmem_area),
 					       0, 0, NULL);
 	if (unlikely(!ashmem_area_cachep)) {
 		pr_err("failed to create slab cache\n");
-		return -ENOMEM;
+		goto out;
 	}
 
 	ashmem_range_cachep = kmem_cache_create("ashmem_range_cache",
@@ -846,13 +846,13 @@ static int __init ashmem_init(void)
 						0, 0, NULL);
 	if (unlikely(!ashmem_range_cachep)) {
 		pr_err("failed to create slab cache\n");
-		return -ENOMEM;
+		goto out_free1;
 	}
 
 	ret = misc_register(&ashmem_misc);
 	if (unlikely(ret)) {
 		pr_err("failed to register misc device!\n");
-		return ret;
+		goto out_free2;
 	}
 
 	register_shrinker(&ashmem_shrinker);
@@ -860,5 +860,12 @@ static int __init ashmem_init(void)
 	pr_info("initialized\n");
 
 	return 0;
+
+out_free2:
+	kmem_cache_destroy(ashmem_range_cachep);
+out_free1:
+	kmem_cache_destroy(ashmem_area_cachep);
+out:
+	return ret;
 }
 device_initcall(ashmem_init);
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
index 345234624492..19c1572f1525 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -33,3 +33,10 @@ config ION_TEGRA
 	help
 	  Choose this option if you wish to use ion on an nVidia Tegra.
 
+config ION_HISI
+	tristate "Ion for Hisilicon"
+	depends on ARCH_HISI && ION
+	help
+	  Choose this option if you wish to use ion on Hisilicon Platform.
+
+source "drivers/staging/android/ion/hisilicon/Kconfig"
diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile
index b56fd2bf2b4f..18cc2aa593c2 100644
--- a/drivers/staging/android/ion/Makefile
+++ b/drivers/staging/android/ion/Makefile
@@ -7,4 +7,5 @@ endif
 
 obj-$(CONFIG_ION_DUMMY) += ion_dummy_driver.o
 obj-$(CONFIG_ION_TEGRA) += tegra/
+obj-$(CONFIG_ION_HISI) += hisilicon/
 
diff --git a/drivers/staging/android/ion/compat_ion.c b/drivers/staging/android/ion/compat_ion.c
index a402fdaf54ca..9a978d21785e 100644
--- a/drivers/staging/android/ion/compat_ion.c
+++ b/drivers/staging/android/ion/compat_ion.c
@@ -137,7 +137,7 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 		data32 = compat_ptr(arg);
 		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
+		if (!data)
 			return -EFAULT;
 
 		err = compat_get_ion_allocation_data(data32, data);
@@ -156,7 +156,7 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 		data32 = compat_ptr(arg);
 		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
+		if (!data)
 			return -EFAULT;
 
 		err = compat_get_ion_handle_data(data32, data);
@@ -173,7 +173,7 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 		data32 = compat_ptr(arg);
 		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
+		if (!data)
 			return -EFAULT;
 
 		err = compat_get_ion_custom_data(data32, data);
diff --git a/drivers/staging/android/ion/hisilicon/Kconfig b/drivers/staging/android/ion/hisilicon/Kconfig
new file mode 100644
index 000000000000..2b4bd0798290
--- /dev/null
+++ b/drivers/staging/android/ion/hisilicon/Kconfig
@@ -0,0 +1,5 @@
+config HI6220_ION
+        bool "Hi6220 ION Driver"
+        depends on ARCH_HISI && ION
+        help
+          Build the Hisilicon Hi6220 ion driver.
diff --git a/drivers/staging/android/ion/hisilicon/Makefile b/drivers/staging/android/ion/hisilicon/Makefile
new file mode 100644
index 000000000000..2a89414280ac
--- /dev/null
+++ b/drivers/staging/android/ion/hisilicon/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_HI6220_ION) += hi6220_ion.o
diff --git a/drivers/staging/android/ion/hisilicon/hi6220_ion.c b/drivers/staging/android/ion/hisilicon/hi6220_ion.c
new file mode 100644
index 000000000000..e3c07b2ba00e
--- /dev/null
+++ b/drivers/staging/android/ion/hisilicon/hi6220_ion.c
@@ -0,0 +1,223 @@
+/*
+ * Hisilicon Hi6220 ION Driver
+ *
+ * Copyright (c) 2015 Hisilicon Limited.
+ *
+ * Author: Chen Feng <puck.chen@hisilicon.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) "Ion: " fmt
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/mm.h>
+#include "../ion_priv.h"
+#include "../ion.h"
+
+struct hi6220_ion_type_table {
+	const char *name;
+	enum ion_heap_type type;
+};
+
+static struct hi6220_ion_type_table ion_type_table[] = {
+	{"ion_system", ION_HEAP_TYPE_SYSTEM},
+	{"ion_system_contig", ION_HEAP_TYPE_SYSTEM_CONTIG},
+	{"ion_carveout", ION_HEAP_TYPE_CARVEOUT},
+	{"ion_chunk", ION_HEAP_TYPE_CHUNK},
+	{"ion_dma", ION_HEAP_TYPE_DMA},
+	{"ion_custom", ION_HEAP_TYPE_CUSTOM},
+};
+
+static struct ion_device *idev;
+static int num_heaps;
+static struct ion_heap **heaps;
+static struct ion_platform_heap **heaps_data;
+
+static int get_type_by_name(const char *name, enum ion_heap_type *type)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ion_type_table); i++) {
+		if (strncmp(name, ion_type_table[i].name, strlen(name)))
+			continue;
+
+		*type = ion_type_table[i].type;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int hi6220_set_platform_data(struct platform_device *pdev)
+{
+	unsigned int base;
+	unsigned int size;
+	unsigned int id;
+	const char *heap_name;
+	const char *type_name;
+	enum ion_heap_type type;
+	int ret;
+	struct device_node *np;
+	struct ion_platform_heap *p_data;
+	const struct device_node *dt_node = pdev->dev.of_node;
+	int index = 0;
+
+	for_each_child_of_node(dt_node, np)
+		num_heaps++;
+
+	heaps_data = devm_kzalloc(&pdev->dev,
+				  sizeof(struct ion_platform_heap *) *
+				  num_heaps,
+				  GFP_KERNEL);
+	if (!heaps_data)
+		return -ENOMEM;
+
+	for_each_child_of_node(dt_node, np) {
+		ret = of_property_read_string(np, "heap-name", &heap_name);
+		if (ret < 0) {
+			pr_err("check the name of node %s\n", np->name);
+			continue;
+		}
+
+		ret = of_property_read_u32(np, "heap-id", &id);
+		if (ret < 0) {
+			pr_err("check the id %s\n", np->name);
+			continue;
+		}
+
+		ret = of_property_read_u32(np, "heap-base", &base);
+		if (ret < 0) {
+			pr_err("check the base of node %s\n", np->name);
+			continue;
+		}
+
+		ret = of_property_read_u32(np, "heap-size", &size);
+		if (ret < 0) {
+			pr_err("check the size of node %s\n", np->name);
+			continue;
+		}
+
+		ret = of_property_read_string(np, "heap-type", &type_name);
+		if (ret < 0) {
+			pr_err("check the type of node %s\n", np->name);
+			continue;
+		}
+
+		ret = get_type_by_name(type_name, &type);
+		if (ret < 0) {
+			pr_err("type name error %s!\n", type_name);
+			continue;
+		}
+		pr_info("heap index %d : name %s base 0x%x size 0x%x id %d type %d\n",
+			index, heap_name, base, size, id, type);
+
+		p_data = devm_kzalloc(&pdev->dev,
+				      sizeof(struct ion_platform_heap),
+				      GFP_KERNEL);
+		if (!p_data)
+			return -ENOMEM;
+
+		p_data->name = heap_name;
+		p_data->base = base;
+		p_data->size = size;
+		p_data->id = id;
+		p_data->type = type;
+
+		heaps_data[index] = p_data;
+		index++;
+	}
+	return 0;
+}
+
+static int hi6220_ion_probe(struct platform_device *pdev)
+{
+	int i;
+	int err;
+	static struct ion_platform_heap *p_heap;
+
+	idev = ion_device_create(NULL);
+	err = hi6220_set_platform_data(pdev);
+	if (err) {
+		pr_err("ion set platform data error!\n");
+		goto err_free_idev;
+	}
+	heaps = devm_kzalloc(&pdev->dev,
+			     sizeof(struct ion_heap *) * num_heaps,
+			     GFP_KERNEL);
+	if (!heaps) {
+		err = -ENOMEM;
+		goto err_free_idev;
+	}
+
+	/*
+	 * create the heaps as specified in the dts file
+	 */
+	for (i = 0; i < num_heaps; i++) {
+		p_heap = heaps_data[i];
+		heaps[i] = ion_heap_create(p_heap);
+		if (IS_ERR_OR_NULL(heaps[i])) {
+			err = PTR_ERR(heaps[i]);
+			goto err_free_heaps;
+		}
+
+		ion_device_add_heap(idev, heaps[i]);
+
+		pr_info("%s: adding heap %s of type %d with %lx@%lx\n",
+			__func__, p_heap->name, p_heap->type,
+			p_heap->base, (unsigned long)p_heap->size);
+	}
+	return err;
+
+err_free_heaps:
+	for (i = 0; i < num_heaps; ++i) {
+		ion_heap_destroy(heaps[i]);
+		heaps[i] = NULL;
+	}
+err_free_idev:
+	ion_device_destroy(idev);
+
+	return err;
+}
+
+static int hi6220_ion_remove(struct platform_device *pdev)
+{
+	int i;
+
+	for (i = 0; i < num_heaps; i++) {
+		ion_heap_destroy(heaps[i]);
+		heaps[i] = NULL;
+	}
+	ion_device_destroy(idev);
+
+	return 0;
+}
+
+static const struct of_device_id hi6220_ion_match_table[] = {
+	{.compatible = "hisilicon,hi6220-ion"},
+	{},
+};
+
+static struct platform_driver hi6220_ion_driver = {
+	.probe = hi6220_ion_probe,
+	.remove = hi6220_ion_remove,
+	.driver = {
+		.name = "ion-hi6220",
+		.of_match_table = hi6220_ion_match_table,
+	},
+};
+
+static int __init hi6220_ion_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&hi6220_ion_driver);
+	return ret;
+}
+
+subsys_initcall(hi6220_ion_init);
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index e679d8432810..8b5a4a82d8b8 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -43,7 +43,7 @@
 #include <linux/profile.h>
 #include <linux/notifier.h>
 
-static uint32_t lowmem_debug_level = 1;
+static u32 lowmem_debug_level = 1;
 static short lowmem_adj[6] = {
 	0,
 	1,
@@ -105,8 +105,8 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
 	}
 
 	lowmem_print(3, "lowmem_scan %lu, %x, ofree %d %d, ma %hd\n",
-			sc->nr_to_scan, sc->gfp_mask, other_free,
-			other_file, min_score_adj);
+		     sc->nr_to_scan, sc->gfp_mask, other_free,
+		     other_file, min_score_adj);
 
 	if (min_score_adj == OOM_SCORE_ADJ_MAX + 1) {
 		lowmem_print(5, "lowmem_scan %lu, %x, return 0\n",
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index f83e00c78051..ed43796b5b58 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -43,7 +43,7 @@ struct sync_timeline *sync_timeline_create(const struct sync_timeline_ops *ops,
 		return NULL;
 
 	obj = kzalloc(size, GFP_KERNEL);
-	if (obj == NULL)
+	if (!obj)
 		return NULL;
 
 	kref_init(&obj->kref);
@@ -130,7 +130,7 @@ struct sync_pt *sync_pt_create(struct sync_timeline *obj, int size)
 		return NULL;
 
 	pt = kzalloc(size, GFP_KERNEL);
-	if (pt == NULL)
+	if (!pt)
 		return NULL;
 
 	spin_lock_irqsave(&obj->child_list_lock, flags);
@@ -155,7 +155,7 @@ static struct sync_fence *sync_fence_alloc(int size, const char *name)
 	struct sync_fence *fence;
 
 	fence = kzalloc(size, GFP_KERNEL);
-	if (fence == NULL)
+	if (!fence)
 		return NULL;
 
 	fence->file = anon_inode_getfile("sync_fence", &sync_fence_fops,
@@ -188,34 +188,39 @@ static void fence_check_cb_func(struct fence *f, struct fence_cb *cb)
 }
 
 /* TODO: implement a create which takes more that one sync_pt */
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt)
+struct sync_fence *sync_fence_create_dma(const char *name, struct fence *pt)
 {
 	struct sync_fence *fence;
 
 	fence = sync_fence_alloc(offsetof(struct sync_fence, cbs[1]), name);
-	if (fence == NULL)
+	if (!fence)
 		return NULL;
 
 	fence->num_fences = 1;
 	atomic_set(&fence->status, 1);
 
-	fence->cbs[0].sync_pt = &pt->base;
+	fence->cbs[0].sync_pt = pt;
 	fence->cbs[0].fence = fence;
-	if (fence_add_callback(&pt->base, &fence->cbs[0].cb,
-			       fence_check_cb_func))
+	if (fence_add_callback(pt, &fence->cbs[0].cb, fence_check_cb_func))
 		atomic_dec(&fence->status);
 
 	sync_fence_debug_add(fence);
 
 	return fence;
 }
+EXPORT_SYMBOL(sync_fence_create_dma);
+
+struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt)
+{
+	return sync_fence_create_dma(name, &pt->base);
+}
 EXPORT_SYMBOL(sync_fence_create);
 
 struct sync_fence *sync_fence_fdget(int fd)
 {
 	struct file *file = fget(fd);
 
-	if (file == NULL)
+	if (!file)
 		return NULL;
 
 	if (file->f_op != &sync_fence_fops)
@@ -262,7 +267,7 @@ struct sync_fence *sync_fence_merge(const char *name,
 	unsigned long size = offsetof(struct sync_fence, cbs[num_fences]);
 
 	fence = sync_fence_alloc(size, name);
-	if (fence == NULL)
+	if (!fence)
 		return NULL;
 
 	atomic_set(&fence->status, num_fences);
@@ -313,7 +318,7 @@ struct sync_fence *sync_fence_merge(const char *name,
 EXPORT_SYMBOL(sync_fence_merge);
 
 int sync_fence_wake_up_wq(wait_queue_t *curr, unsigned mode,
-				 int wake_flags, void *key)
+			  int wake_flags, void *key)
 {
 	struct sync_fence_waiter *wait;
 
@@ -353,7 +358,7 @@ int sync_fence_wait_async(struct sync_fence *fence,
 EXPORT_SYMBOL(sync_fence_wait_async);
 
 int sync_fence_cancel_async(struct sync_fence *fence,
-			     struct sync_fence_waiter *waiter)
+			    struct sync_fence_waiter *waiter)
 {
 	unsigned long flags;
 	int ret = 0;
@@ -519,12 +524,10 @@ static const struct fence_ops android_fence_ops = {
 static void sync_fence_free(struct kref *kref)
 {
 	struct sync_fence *fence = container_of(kref, struct sync_fence, kref);
-	int i, status = atomic_read(&fence->status);
+	int i;
 
 	for (i = 0; i < fence->num_fences; ++i) {
-		if (status)
-			fence_remove_callback(fence->cbs[i].sync_pt,
-					      &fence->cbs[i].cb);
+		fence_remove_callback(fence->cbs[i].sync_pt, &fence->cbs[i].cb);
 		fence_put(fence->cbs[i].sync_pt);
 	}
 
@@ -583,14 +586,14 @@ static long sync_fence_ioctl_merge(struct sync_fence *fence, unsigned long arg)
 	}
 
 	fence2 = sync_fence_fdget(data.fd2);
-	if (fence2 == NULL) {
+	if (!fence2) {
 		err = -ENOENT;
 		goto err_put_fd;
 	}
 
 	data.name[sizeof(data.name) - 1] = '\0';
 	fence3 = sync_fence_merge(data.name, fence, fence2);
-	if (fence3 == NULL) {
+	if (!fence3) {
 		err = -ENOMEM;
 		goto err_put_fence2;
 	}
@@ -666,7 +669,7 @@ static long sync_fence_ioctl_fence_info(struct sync_fence *fence,
 		size = 4096;
 
 	data = kzalloc(size, GFP_KERNEL);
-	if (data == NULL)
+	if (!data)
 		return -ENOMEM;
 
 	strlcpy(data->name, fence->name, sizeof(data->name));
diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h
index 61f8a3aede96..afa0752275a7 100644
--- a/drivers/staging/android/sync.h
+++ b/drivers/staging/android/sync.h
@@ -254,6 +254,16 @@ void sync_pt_free(struct sync_pt *pt);
  */
 struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt);
 
+/**
+ * sync_fence_create_dma() - creates a sync fence from dma-fence
+ * @name:	name of fence to create
+ * @pt:	dma-fence to add to the fence
+ *
+ * Creates a fence containg @pt.  Once this is called, the fence takes
+ * ownership of @pt.
+ */
+struct sync_fence *sync_fence_create_dma(const char *name, struct fence *pt);
+
 /*
  * API for sync_fence consumers
  */
diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c
index 91ed2c4cff45..f45d13cdd42b 100644
--- a/drivers/staging/android/sync_debug.c
+++ b/drivers/staging/android/sync_debug.c
@@ -82,36 +82,42 @@ static const char *sync_status_str(int status)
 	return "error";
 }
 
-static void sync_print_pt(struct seq_file *s, struct sync_pt *pt, bool fence)
+static void sync_print_pt(struct seq_file *s, struct fence *pt, bool fence)
 {
 	int status = 1;
-	struct sync_timeline *parent = sync_pt_parent(pt);
 
-	if (fence_is_signaled_locked(&pt->base))
-		status = pt->base.status;
+	if (fence_is_signaled_locked(pt))
+		status = pt->status;
 
 	seq_printf(s, "  %s%spt %s",
-		   fence ? parent->name : "",
+		   fence && pt->ops->get_timeline_name ?
+		   pt->ops->get_timeline_name(pt) : "",
 		   fence ? "_" : "",
 		   sync_status_str(status));
 
 	if (status <= 0) {
 		struct timespec64 ts64 =
-			ktime_to_timespec64(pt->base.timestamp);
+			ktime_to_timespec64(pt->timestamp);
 
 		seq_printf(s, "@%lld.%09ld", (s64)ts64.tv_sec, ts64.tv_nsec);
 	}
 
-	if (parent->ops->timeline_value_str &&
-	    parent->ops->pt_value_str) {
+	if ((!fence || pt->ops->timeline_value_str) &&
+	    pt->ops->fence_value_str) {
 		char value[64];
+		bool success;
 
-		parent->ops->pt_value_str(pt, value, sizeof(value));
-		seq_printf(s, ": %s", value);
-		if (fence) {
-			parent->ops->timeline_value_str(parent, value,
-						    sizeof(value));
-			seq_printf(s, " / %s", value);
+		pt->ops->fence_value_str(pt, value, sizeof(value));
+		success = strlen(value);
+
+		if (success)
+			seq_printf(s, ": %s", value);
+
+		if (success && fence) {
+			pt->ops->timeline_value_str(pt, value, sizeof(value));
+
+			if (strlen(value))
+				seq_printf(s, " / %s", value);
 		}
 	}
 
@@ -138,7 +144,7 @@ static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
 	list_for_each(pos, &obj->child_list_head) {
 		struct sync_pt *pt =
 			container_of(pos, struct sync_pt, child_list);
-		sync_print_pt(s, pt, false);
+		sync_print_pt(s, &pt->base, false);
 	}
 	spin_unlock_irqrestore(&obj->child_list_lock, flags);
 }
@@ -153,11 +159,7 @@ static void sync_print_fence(struct seq_file *s, struct sync_fence *fence)
 		   sync_status_str(atomic_read(&fence->status)));
 
 	for (i = 0; i < fence->num_fences; ++i) {
-		struct sync_pt *pt =
-			container_of(fence->cbs[i].sync_pt,
-				     struct sync_pt, base);
-
-		sync_print_pt(s, pt, true);
+		sync_print_pt(s, fence->cbs[i].sync_pt, true);
 	}
 
 	spin_lock_irqsave(&fence->wq.lock, flags);
diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c
index ce11726f1a6c..bcd9924d4631 100644
--- a/drivers/staging/android/timed_gpio.c
+++ b/drivers/staging/android/timed_gpio.c
@@ -25,7 +25,6 @@
 #include "timed_output.h"
 #include "timed_gpio.h"
 
-
 struct timed_gpio_data {
 	struct timed_output_dev dev;
 	struct hrtimer timer;
@@ -76,8 +75,8 @@ static void gpio_enable(struct timed_output_dev *dev, int value)
 			value = data->max_timeout;
 
 		hrtimer_start(&data->timer,
-			ktime_set(value / 1000, (value % 1000) * 1000000),
-			HRTIMER_MODE_REL);
+			      ktime_set(value / 1000, (value % 1000) * 1000000),
+			      HRTIMER_MODE_REL);
 	}
 
 	spin_unlock_irqrestore(&data->lock, flags);
@@ -94,8 +93,8 @@ static int timed_gpio_probe(struct platform_device *pdev)
 		return -EBUSY;
 
 	gpio_data = devm_kzalloc(&pdev->dev,
-			sizeof(struct timed_gpio_data) * pdata->num_gpios,
-			GFP_KERNEL);
+				 sizeof(*gpio_data) * pdata->num_gpios,
+				 GFP_KERNEL);
 	if (!gpio_data)
 		return -ENOMEM;
 
@@ -104,7 +103,7 @@ static int timed_gpio_probe(struct platform_device *pdev)
 		gpio_dat = &gpio_data[i];
 
 		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC,
-				HRTIMER_MODE_REL);
+			     HRTIMER_MODE_REL);
 		gpio_dat->timer.function = gpio_timer_func;
 		spin_lock_init(&gpio_dat->lock);
 
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index ac0f01007abd..e7255f811611 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -737,15 +737,23 @@ config COMEDI_ADL_PCI9118
 	  called adl_pci9118.
 
 config COMEDI_ADV_PCI1710
-	tristate "Advantech PCI-171x, PCI-1720 and PCI-1731 support"
+	tristate "Advantech PCI-171x and PCI-1731 support"
 	select COMEDI_8254
 	---help---
 	  Enable support for Advantech PCI-1710, PCI-1710HG, PCI-1711,
-	  PCI-1713, PCI-1720 and PCI-1731
+	  PCI-1713 and PCI-1731
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called adv_pci1710.
 
+config COMEDI_ADV_PCI1720
+	tristate "Advantech PCI-1720 support"
+	---help---
+	  Enable support for Advantech PCI-1720 Analog Output board.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called adv_pci1720.
+
 config COMEDI_ADV_PCI1723
 	tristate "Advantech PCI-1723 support"
 	---help---
@@ -764,6 +772,14 @@ config COMEDI_ADV_PCI1724
 	  To compile this driver as a module, choose M here: the module will be
 	  called adv_pci1724.
 
+config COMEDI_ADV_PCI1760
+	tristate "Advantech PCI-1760 support"
+	---help---
+	  Enable support for Advantech PCI-1760 board.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called adv_pci1760.
+
 config COMEDI_ADV_PCI_DIO
 	tristate "Advantech PCI DIO card support"
 	select COMEDI_8254
@@ -771,8 +787,8 @@ config COMEDI_ADV_PCI_DIO
 	---help---
 	  Enable support for Advantech PCI DIO cards
 	  PCI-1730, PCI-1733, PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U,
-	  PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756,
-	  PCI-1760 and PCI-1762
+	  PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756 and
+	  PCI-1762
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called adv_pci_dio.
diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
index 66edda190b75..83bd309d011b 100644
--- a/drivers/staging/comedi/comedi.h
+++ b/drivers/staging/comedi/comedi.h
@@ -1,20 +1,20 @@
 /*
-    include/comedi.h (installed as /usr/include/comedi.h)
-    header file for comedi
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
+ * include/comedi.h (installed as /usr/include/comedi.h)
+ * header file for comedi
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 #ifndef _COMEDI_H
 #define _COMEDI_H
@@ -28,9 +28,9 @@
 #define COMEDI_MAJOR 98
 
 /*
-   maximum number of minor devices.  This can be increased, although
-   kernel structures are currently statically allocated, thus you
-   don't want this to be much more than you actually use.
+ * maximum number of minor devices.  This can be increased, although
+ * kernel structures are currently statically allocated, thus you
+ * don't want this to be much more than you actually use.
  */
 #define COMEDI_NDEVICES 16
 
@@ -63,21 +63,21 @@
 /* packs and unpacks a channel/range number */
 
 #define CR_PACK(chan, rng, aref)					\
-	((((aref)&0x3)<<24) | (((rng)&0xff)<<16) | (chan))
+	((((aref) & 0x3) << 24) | (((rng) & 0xff) << 16) | (chan))
 #define CR_PACK_FLAGS(chan, range, aref, flags)				\
 	(CR_PACK(chan, range, aref) | ((flags) & CR_FLAGS_MASK))
 
-#define CR_CHAN(a)	((a)&0xffff)
-#define CR_RANGE(a)	(((a)>>16)&0xff)
-#define CR_AREF(a)	(((a)>>24)&0x03)
+#define CR_CHAN(a)	((a) & 0xffff)
+#define CR_RANGE(a)	(((a) >> 16) & 0xff)
+#define CR_AREF(a)	(((a) >> 24) & 0x03)
 
 #define CR_FLAGS_MASK	0xfc000000
-#define CR_ALT_FILTER	(1<<26)
+#define CR_ALT_FILTER	(1 << 26)
 #define CR_DITHER	CR_ALT_FILTER
 #define CR_DEGLITCH	CR_ALT_FILTER
-#define CR_ALT_SOURCE	(1<<27)
-#define CR_EDGE		(1<<30)
-#define CR_INVERT	(1<<31)
+#define CR_ALT_SOURCE	(1 << 27)
+#define CR_EDGE		(1 << 30)
+#define CR_INVERT	(1 << 31)
 
 #define AREF_GROUND	0x00	/* analog ref = analog ground */
 #define AREF_COMMON	0x01	/* analog ref = analog common */
@@ -114,11 +114,11 @@
 
 #define INSN_READ		(0 | INSN_MASK_READ)
 #define INSN_WRITE		(1 | INSN_MASK_WRITE)
-#define INSN_BITS		(2 | INSN_MASK_READ|INSN_MASK_WRITE)
-#define INSN_CONFIG		(3 | INSN_MASK_READ|INSN_MASK_WRITE)
-#define INSN_GTOD		(4 | INSN_MASK_READ|INSN_MASK_SPECIAL)
-#define INSN_WAIT		(5 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
-#define INSN_INTTRIG		(6 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
+#define INSN_BITS		(2 | INSN_MASK_READ | INSN_MASK_WRITE)
+#define INSN_CONFIG		(3 | INSN_MASK_READ | INSN_MASK_WRITE)
+#define INSN_GTOD		(4 | INSN_MASK_READ | INSN_MASK_SPECIAL)
+#define INSN_WAIT		(5 | INSN_MASK_WRITE | INSN_MASK_SPECIAL)
+#define INSN_INTTRIG		(6 | INSN_MASK_WRITE | INSN_MASK_SPECIAL)
 
 /* trigger flags */
 /* These flags are used in comedi_trig structures */
@@ -279,7 +279,8 @@ enum configuration_ids {
 	INSN_CONFIG_SET_OTHER_SRC = 2005, /* Set other source */
 	/* INSN_CONFIG_GET_OTHER_SRC = 2006,*//* Get other source */
 	/* Get size in bytes of subdevice's on-board fifos used during
-	 * streaming input/output */
+	 * streaming input/output
+	 */
 	INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
 	INSN_CONFIG_SET_COUNTER_MODE = 4097,
 	/* INSN_CONFIG_8254_SET_MODE is deprecated */
@@ -292,7 +293,8 @@ enum configuration_ids {
 	INSN_CONFIG_PWM_GET_PERIOD = 5001,	/* gets frequency */
 	INSN_CONFIG_GET_PWM_STATUS = 5002,	/* is it running? */
 	/* sets H bridge: duty cycle and sign bit for a relay at the
-	 * same time */
+	 * same time
+	 */
 	INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
 	/* gets H bridge data: duty cycle and the sign bit */
 	INSN_CONFIG_PWM_GET_H_BRIDGE = 5004
@@ -502,13 +504,13 @@ struct comedi_bufinfo {
 
 /* range stuff */
 
-#define __RANGE(a, b)	((((a)&0xffff)<<16)|((b)&0xffff))
+#define __RANGE(a, b)	((((a) & 0xffff) << 16) | ((b) & 0xffff))
 
-#define RANGE_OFFSET(a)		(((a)>>16)&0xffff)
-#define RANGE_LENGTH(b)		((b)&0xffff)
+#define RANGE_OFFSET(a)		(((a) >> 16) & 0xffff)
+#define RANGE_LENGTH(b)		((b) & 0xffff)
 
-#define RF_UNIT(flags)		((flags)&0xff)
-#define RF_EXTERNAL		(1<<8)
+#define RF_UNIT(flags)		((flags) & 0xff)
+#define RF_EXTERNAL		(1 << 8)
 
 #define UNIT_volt		0
 #define UNIT_mA			1
@@ -521,23 +523,22 @@ struct comedi_bufinfo {
 /**********************************************************/
 
 /*
-  8254 specific configuration.
-
-  It supports two config commands:
-
-  0 ID: INSN_CONFIG_SET_COUNTER_MODE
-  1 8254 Mode
-    I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
-    OR'ed with:
-    I8254_BCD, I8254_BINARY
-
-  0 ID: INSN_CONFIG_8254_READ_STATUS
-  1 <-- Status byte returned here.
-    B7 = Output
-    B6 = NULL Count
-    B5 - B0 Current mode.
-
-*/
+ * 8254 specific configuration.
+ *
+ * It supports two config commands:
+ *
+ * 0 ID: INSN_CONFIG_SET_COUNTER_MODE
+ * 1 8254 Mode
+ * I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
+ * OR'ed with:
+ * I8254_BCD, I8254_BINARY
+ *
+ * 0 ID: INSN_CONFIG_8254_READ_STATUS
+ * 1 <-- Status byte returned here.
+ * B7 = Output
+ * B6 = NULL Count
+ * B5 - B0 Current mode.
+ */
 
 enum i8254_mode {
 	I8254_MODE0 = (0 << 1),	/* Interrupt on terminal count */
@@ -545,18 +546,20 @@ enum i8254_mode {
 	I8254_MODE2 = (2 << 1),	/* Rate generator */
 	I8254_MODE3 = (3 << 1),	/* Square wave mode */
 	I8254_MODE4 = (4 << 1),	/* Software triggered strobe */
-	I8254_MODE5 = (5 << 1),	/* Hardware triggered strobe
-				 * (retriggerable) */
-	I8254_BCD = 1,		/* use binary-coded decimal instead of binary
-				 * (pretty useless) */
+	/* Hardware triggered strobe (retriggerable) */
+	I8254_MODE5 = (5 << 1),
+	/* Use binary-coded decimal instead of binary (pretty useless) */
+	I8254_BCD = 1,
 	I8254_BINARY = 0
 };
 
 #define NI_USUAL_PFI_SELECT(x)	(((x) < 10) ? (0x1 + (x)) : (0xb + (x)))
 #define NI_USUAL_RTSI_SELECT(x)	(((x) < 7) ? (0xb + (x)) : 0x1b)
 
-/* mode bits for NI general-purpose counters, set with
- * INSN_CONFIG_SET_COUNTER_MODE */
+/*
+ * mode bits for NI general-purpose counters, set with
+ * INSN_CONFIG_SET_COUNTER_MODE
+ */
 #define NI_GPCT_COUNTING_MODE_SHIFT 16
 #define NI_GPCT_INDEX_PHASE_BITSHIFT 20
 #define NI_GPCT_COUNTING_DIRECTION_SHIFT 24
@@ -624,8 +627,10 @@ enum ni_gpct_mode_bits {
 	NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
 };
 
-/* Bits for setting a clock source with
- * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters. */
+/*
+ * Bits for setting a clock source with
+ * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters.
+ */
 enum ni_gpct_clock_source_bits {
 	NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
 	NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
@@ -656,9 +661,11 @@ enum ni_gpct_clock_source_bits {
 /* no pfi on NI 660x */
 #define NI_GPCT_PFI_CLOCK_SRC_BITS(x)		(0x20 + (x))
 
-/* Possibilities for setting a gate source with
-INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
-May be bitwise-or'd with CR_EDGE or CR_INVERT. */
+/*
+ * Possibilities for setting a gate source with
+ * INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
+ * May be bitwise-or'd with CR_EDGE or CR_INVERT.
+ */
 enum ni_gpct_gate_select {
 	/* m-series gates */
 	NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
@@ -675,9 +682,11 @@ enum ni_gpct_gate_select {
 	/* more gates for 660x "second gate" */
 	NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
 	NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
-	/* m-series "second gate" sources are unknown,
+	/*
+	 * m-series "second gate" sources are unknown,
 	 * we should add them here with an offset of 0x300 when
-	 * known. */
+	 * known.
+	 */
 	NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
 };
 
@@ -686,8 +695,10 @@ enum ni_gpct_gate_select {
 #define NI_GPCT_PFI_GATE_SELECT(x)		NI_USUAL_PFI_SELECT(x)
 #define NI_GPCT_UP_DOWN_PIN_GATE_SELECT(x)	(0x202 + (x))
 
-/* Possibilities for setting a source with
-INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters. */
+/*
+ * Possibilities for setting a source with
+ * INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters.
+ */
 enum ni_gpct_other_index {
 	NI_GPCT_SOURCE_ENCODER_A,
 	NI_GPCT_SOURCE_ENCODER_B,
@@ -702,18 +713,24 @@ enum ni_gpct_other_select {
 
 #define NI_GPCT_PFI_OTHER_SELECT(x)	NI_USUAL_PFI_SELECT(x)
 
-/* start sources for ni general-purpose counters for use with
-INSN_CONFIG_ARM */
+/*
+ * start sources for ni general-purpose counters for use with
+ * INSN_CONFIG_ARM
+ */
 enum ni_gpct_arm_source {
 	NI_GPCT_ARM_IMMEDIATE = 0x0,
-	NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1, /* Start both the counter
-					     * and the adjacent paired
-					     * counter simultaneously */
-	/* NI doesn't document bits for selecting hardware arm triggers.
+	/*
+	 * Start both the counter and the adjacent pared
+	 * counter simultaneously
+	 */
+	NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1,
+	/*
+	 * NI doesn't document bits for selecting hardware arm triggers.
 	 * If the NI_GPCT_ARM_UNKNOWN bit is set, we will pass the least
 	 * significant bits (3 bits for 660x or 5 bits for m-series)
 	 * through to the hardware.  This will at least allow someone to
-	 * figure out what the bits do later. */
+	 * figure out what the bits do later.
+	 */
 	NI_GPCT_ARM_UNKNOWN = 0x1000,
 };
 
@@ -728,8 +745,10 @@ enum ni_gpct_filter_select {
 	NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
 };
 
-/* PFI digital filtering options for ni m-series for use with
- * INSN_CONFIG_FILTER. */
+/*
+ * PFI digital filtering options for ni m-series for use with
+ * INSN_CONFIG_FILTER.
+ */
 enum ni_pfi_filter_select {
 	NI_PFI_FILTER_OFF = 0x0,
 	NI_PFI_FILTER_125ns = 0x1,
@@ -740,9 +759,11 @@ enum ni_pfi_filter_select {
 /* master clock sources for ni mio boards and INSN_CONFIG_SET_CLOCK_SRC */
 enum ni_mio_clock_source {
 	NI_MIO_INTERNAL_CLOCK = 0,
-	NI_MIO_RTSI_CLOCK = 1,	/* doesn't work for m-series, use
-				   NI_MIO_PLL_RTSI_CLOCK() */
-	/* the NI_MIO_PLL_* sources are m-series only */
+	/*
+	 * Doesn't work for m-series, use NI_MIO_PLL_RTSI_CLOCK()
+	 * the NI_MIO_PLL_* sources are m-series only
+	 */
+	NI_MIO_RTSI_CLOCK = 1,
 	NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
 	NI_MIO_PLL_PXI10_CLOCK = 3,
 	NI_MIO_PLL_RTSI0_CLOCK = 4
@@ -750,9 +771,11 @@ enum ni_mio_clock_source {
 
 #define NI_MIO_PLL_RTSI_CLOCK(x)	(NI_MIO_PLL_RTSI0_CLOCK + (x))
 
-/* Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
- The numbers assigned are not arbitrary, they correspond to the bits required
- to program the board. */
+/*
+ * Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
+ * The numbers assigned are not arbitrary, they correspond to the bits required
+ * to program the board.
+ */
 enum ni_rtsi_routing {
 	NI_RTSI_OUTPUT_ADR_START1 = 0,
 	NI_RTSI_OUTPUT_ADR_START2 = 1,
@@ -763,17 +786,19 @@ enum ni_rtsi_routing {
 	NI_RTSI_OUTPUT_G_GATE0 = 6,
 	NI_RTSI_OUTPUT_RGOUT0 = 7,
 	NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
-	NI_RTSI_OUTPUT_RTSI_OSC = 12	/* pre-m-series always have RTSI
-					 * clock on line 7 */
+	/* Pre-m-series always have RTSI clock on line 7 */
+	NI_RTSI_OUTPUT_RTSI_OSC = 12
 };
 
 #define NI_RTSI_OUTPUT_RTSI_BRD(x)	(NI_RTSI_OUTPUT_RTSI_BRD_0 + (x))
 
-/* Signals which can be routed to an NI PFI pin on an m-series board with
+/*
+ * Signals which can be routed to an NI PFI pin on an m-series board with
  * INSN_CONFIG_SET_ROUTING.  These numbers are also returned by
  * INSN_CONFIG_GET_ROUTING on pre-m-series boards, even though their routing
  * cannot be changed.  The numbers assigned are not arbitrary, they correspond
- * to the bits required to program the board. */
+ * to the bits required to program the board.
+ */
 enum ni_pfi_routing {
 	NI_PFI_OUTPUT_PFI_DEFAULT = 0,
 	NI_PFI_OUTPUT_AI_START1 = 1,
@@ -803,20 +828,24 @@ enum ni_pfi_routing {
 
 #define NI_PFI_OUTPUT_RTSI(x)		(NI_PFI_OUTPUT_RTSI0 + (x))
 
-/* Signals which can be routed to output on a NI PFI pin on a 660x board
- with INSN_CONFIG_SET_ROUTING.  The numbers assigned are
- not arbitrary, they correspond to the bits required
- to program the board.  Lines 0 to 7 can only be set to
- NI_660X_PFI_OUTPUT_DIO.  Lines 32 to 39 can only be set to
- NI_660X_PFI_OUTPUT_COUNTER. */
+/*
+ * Signals which can be routed to output on a NI PFI pin on a 660x board
+ * with INSN_CONFIG_SET_ROUTING.  The numbers assigned are
+ * not arbitrary, they correspond to the bits required
+ * to program the board.  Lines 0 to 7 can only be set to
+ * NI_660X_PFI_OUTPUT_DIO.  Lines 32 to 39 can only be set to
+ * NI_660X_PFI_OUTPUT_COUNTER.
+ */
 enum ni_660x_pfi_routing {
 	NI_660X_PFI_OUTPUT_COUNTER = 1,	/* counter */
 	NI_660X_PFI_OUTPUT_DIO = 2,	/* static digital output */
 };
 
-/* NI External Trigger lines.  These values are not arbitrary, but are related
+/*
+ * NI External Trigger lines.  These values are not arbitrary, but are related
  * to the bits required to program the board (offset by 1 for historical
- * reasons). */
+ * reasons).
+ */
 #define NI_EXT_PFI(x)			(NI_USUAL_PFI_SELECT(x) - 1)
 #define NI_EXT_RTSI(x)			(NI_USUAL_RTSI_SELECT(x) - 1)
 
@@ -827,9 +856,11 @@ enum comedi_counter_status_flags {
 	COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
 };
 
-/* Clock sources for CDIO subdevice on NI m-series boards.  Used as the
+/*
+ * Clock sources for CDIO subdevice on NI m-series boards.  Used as the
  * scan_begin_arg for a comedi_command. These sources may also be bitwise-or'd
- * with CR_INVERT to change polarity. */
+ * with CR_INVERT to change polarity.
+ */
 enum ni_m_series_cdio_scan_begin_src {
 	NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
 	NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
@@ -846,38 +877,50 @@ enum ni_m_series_cdio_scan_begin_src {
 #define NI_CDIO_SCAN_BEGIN_SRC_PFI(x)	NI_USUAL_PFI_SELECT(x)
 #define NI_CDIO_SCAN_BEGIN_SRC_RTSI(x)	NI_USUAL_RTSI_SELECT(x)
 
-/* scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
+/*
+ * scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
  * boards.  These scan begin sources can also be bitwise-or'd with CR_INVERT to
- * change polarity. */
+ * change polarity.
+ */
 #define NI_AO_SCAN_BEGIN_SRC_PFI(x)	NI_USUAL_PFI_SELECT(x)
 #define NI_AO_SCAN_BEGIN_SRC_RTSI(x)	NI_USUAL_RTSI_SELECT(x)
 
-/* Bits for setting a clock source with
- * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice. */
+/*
+ * Bits for setting a clock source with
+ * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice.
+ */
 enum ni_freq_out_clock_source_bits {
 	NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC,	/* 10 MHz */
 	NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC	/* 100 KHz */
 };
 
-/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
- * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
+/*
+ * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver).
+ */
 enum amplc_dio_clock_source {
-	AMPLC_DIO_CLK_CLKN,	/* per channel external clock
-				   input/output pin (pin is only an
-				   input when clock source set to this
-				   value, otherwise it is an output) */
+	/*
+	 * Per channel external clock
+	 * input/output pin (pin is only an
+	 * input when clock source set to this value,
+	 * otherwise it is an output)
+	 */
+	AMPLC_DIO_CLK_CLKN,
 	AMPLC_DIO_CLK_10MHZ,	/* 10 MHz internal clock */
 	AMPLC_DIO_CLK_1MHZ,	/* 1 MHz internal clock */
 	AMPLC_DIO_CLK_100KHZ,	/* 100 kHz internal clock */
 	AMPLC_DIO_CLK_10KHZ,	/* 10 kHz internal clock */
 	AMPLC_DIO_CLK_1KHZ,	/* 1 kHz internal clock */
-	AMPLC_DIO_CLK_OUTNM1,	/* output of preceding counter channel
-				   (for channel 0, preceding counter
-				   channel is channel 2 on preceding
-				   counter subdevice, for first counter
-				   subdevice, preceding counter
-				   subdevice is the last counter
-				   subdevice) */
+	/*
+	 * Output of preceding counter channel
+	 * (for channel 0, preceding counter
+	 * channel is channel 2 on preceding
+	 * counter subdevice, for first counter
+	 * subdevice, preceding counter
+	 * subdevice is the last counter
+	 * subdevice)
+	 */
+	AMPLC_DIO_CLK_OUTNM1,
 	AMPLC_DIO_CLK_EXT,	/* per chip external input pin */
 	/* the following are "enhanced" clock sources for PCIe models */
 	AMPLC_DIO_CLK_VCC,	/* clock input HIGH */
@@ -886,35 +929,39 @@ enum amplc_dio_clock_source {
 	AMPLC_DIO_CLK_20MHZ	/* 20 MHz internal clock */
 };
 
-/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
- * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver). */
+/*
+ * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver).
+ */
 enum amplc_dio_ts_clock_src {
 	AMPLC_DIO_TS_CLK_1GHZ,	/* 1 ns period with 20 ns granularity */
 	AMPLC_DIO_TS_CLK_1MHZ,	/* 1 us period */
 	AMPLC_DIO_TS_CLK_1KHZ	/* 1 ms period */
 };
 
-/* Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
- * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
+/*
+ * Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
+ * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver).
+ */
 enum amplc_dio_gate_source {
 	AMPLC_DIO_GAT_VCC,	/* internal high logic level */
 	AMPLC_DIO_GAT_GND,	/* internal low logic level */
 	AMPLC_DIO_GAT_GATN,	/* per channel external gate input */
-	AMPLC_DIO_GAT_NOUTNM2,	/* negated output of counter channel
-				   minus 2 (for channels 0 or 1,
-				   channel minus 2 is channel 1 or 2 on
-				   the preceding counter subdevice, for
-				   the first counter subdevice the
-				   preceding counter subdevice is the
-				   last counter subdevice) */
+	/*
+	 * negated output of counter channel minus 2
+	 * (for channels 0 or 1, channel minus 2 is channel 1 or 2 on
+	 * the preceding counter subdevice, for the first counter subdevice
+	 * the preceding counter subdevice is the last counter subdevice)
+	 */
+	AMPLC_DIO_GAT_NOUTNM2,
 	AMPLC_DIO_GAT_RESERVED4,
 	AMPLC_DIO_GAT_RESERVED5,
 	AMPLC_DIO_GAT_RESERVED6,
 	AMPLC_DIO_GAT_RESERVED7,
 	/* the following are "enhanced" gate sources for PCIe models */
 	AMPLC_DIO_GAT_NGATN = 6, /* negated per channel gate input */
-	AMPLC_DIO_GAT_OUTNM2,	/* non-negated output of counter
-				   channel minus 2 */
+	/* non-negated output of counter channel minus 2 */
+	AMPLC_DIO_GAT_OUTNM2,
 	AMPLC_DIO_GAT_PAT_PRESENT, /* "pattern present" signal */
 	AMPLC_DIO_GAT_PAT_OCCURRED, /* "pattern occurred" latched */
 	AMPLC_DIO_GAT_PAT_GONE,	/* "pattern gone away" latched */
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 7b4af519e17e..d57fadef47fc 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2303,11 +2303,13 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 {
 	struct comedi_subdevice *s;
 	struct comedi_async *async;
-	int n, m, count = 0, retval = 0;
+	unsigned int n, m;
+	ssize_t count = 0;
+	int retval = 0;
 	DECLARE_WAITQUEUE(wait, current);
 	struct comedi_file *cfp = file->private_data;
 	struct comedi_device *dev = cfp->dev;
-	bool on_wait_queue = false;
+	bool become_nonbusy = false;
 	bool attach_locked;
 	unsigned int old_detach_count;
 
@@ -2329,74 +2331,33 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 	}
 
 	async = s->async;
-
-	if (!s->busy || !nbytes)
-		goto out;
-	if (s->busy != file) {
-		retval = -EACCES;
-		goto out;
-	}
-	if (!(async->cmd.flags & CMDF_WRITE)) {
+	if (s->busy != file || !(async->cmd.flags & CMDF_WRITE)) {
 		retval = -EINVAL;
 		goto out;
 	}
 
 	add_wait_queue(&async->wait_head, &wait);
-	on_wait_queue = true;
-	while (nbytes > 0 && !retval) {
+	while (count == 0 && !retval) {
 		unsigned runflags;
+		unsigned int wp, n1, n2;
 
 		set_current_state(TASK_INTERRUPTIBLE);
 
 		runflags = comedi_get_subdevice_runflags(s);
 		if (!comedi_is_runflags_running(runflags)) {
-			if (count == 0) {
-				struct comedi_subdevice *new_s;
-
-				if (comedi_is_runflags_in_error(runflags))
-					retval = -EPIPE;
-				else
-					retval = 0;
-				/*
-				 * To avoid deadlock, cannot acquire dev->mutex
-				 * while dev->attach_lock is held.  Need to
-				 * remove task from the async wait queue before
-				 * releasing dev->attach_lock, as it might not
-				 * be valid afterwards.
-				 */
-				remove_wait_queue(&async->wait_head, &wait);
-				on_wait_queue = false;
-				up_read(&dev->attach_lock);
-				attach_locked = false;
-				mutex_lock(&dev->mutex);
-				/*
-				 * Become non-busy unless things have changed
-				 * behind our back.  Checking dev->detach_count
-				 * is unchanged ought to be sufficient (unless
-				 * there have been 2**32 detaches in the
-				 * meantime!), but check the subdevice pointer
-				 * as well just in case.
-				 */
-				new_s = comedi_file_write_subdevice(file);
-				if (dev->attached &&
-				    old_detach_count == dev->detach_count &&
-				    s == new_s && new_s->async == async)
-					do_become_nonbusy(dev, s);
-				mutex_unlock(&dev->mutex);
-			}
+			if (comedi_is_runflags_in_error(runflags))
+				retval = -EPIPE;
+			if (retval || nbytes)
+				become_nonbusy = true;
 			break;
 		}
+		if (nbytes == 0)
+			break;
 
-		n = nbytes;
-
-		m = n;
-		if (async->buf_write_ptr + m > async->prealloc_bufsz)
-			m = async->prealloc_bufsz - async->buf_write_ptr;
+		/* Allocate all free buffer space. */
 		comedi_buf_write_alloc(s, async->prealloc_bufsz);
-		if (m > comedi_buf_write_n_allocated(s))
-			m = comedi_buf_write_n_allocated(s);
-		if (m < n)
-			n = m;
+		m = comedi_buf_write_n_allocated(s);
+		n = min_t(size_t, m, nbytes);
 
 		if (n == 0) {
 			if (file->f_flags & O_NONBLOCK) {
@@ -2408,21 +2369,22 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 				retval = -ERESTARTSYS;
 				break;
 			}
-			if (!s->busy)
-				break;
-			if (s->busy != file) {
-				retval = -EACCES;
-				break;
-			}
-			if (!(async->cmd.flags & CMDF_WRITE)) {
+			if (s->busy != file ||
+			    !(async->cmd.flags & CMDF_WRITE)) {
 				retval = -EINVAL;
 				break;
 			}
 			continue;
 		}
 
-		m = copy_from_user(async->prealloc_buf + async->buf_write_ptr,
-				   buf, n);
+		wp = async->buf_write_ptr;
+		n1 = min(n, async->prealloc_bufsz - wp);
+		n2 = n - n1;
+		m = copy_from_user(async->prealloc_buf + wp, buf, n1);
+		if (m)
+			m += n2;
+		else if (n2)
+			m = copy_from_user(async->prealloc_buf, buf + n1, n2);
 		if (m) {
 			n -= m;
 			retval = -EFAULT;
@@ -2433,12 +2395,38 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 		nbytes -= n;
 
 		buf += n;
-		break;		/* makes device work like a pipe */
 	}
-out:
-	if (on_wait_queue)
-		remove_wait_queue(&async->wait_head, &wait);
+	remove_wait_queue(&async->wait_head, &wait);
 	set_current_state(TASK_RUNNING);
+	if (become_nonbusy && count == 0) {
+		struct comedi_subdevice *new_s;
+
+		/*
+		 * To avoid deadlock, cannot acquire dev->mutex
+		 * while dev->attach_lock is held.
+		 */
+		up_read(&dev->attach_lock);
+		attach_locked = false;
+		mutex_lock(&dev->mutex);
+		/*
+		 * Check device hasn't become detached behind our back.
+		 * Checking dev->detach_count is unchanged ought to be
+		 * sufficient (unless there have been 2**32 detaches in the
+		 * meantime!), but check the subdevice pointer as well just in
+		 * case.
+		 *
+		 * Also check the subdevice is still in a suitable state to
+		 * become non-busy in case it changed behind our back.
+		 */
+		new_s = comedi_file_write_subdevice(file);
+		if (dev->attached && old_detach_count == dev->detach_count &&
+		    s == new_s && new_s->async == async && s->busy == file &&
+		    (async->cmd.flags & CMDF_WRITE) &&
+		    !comedi_is_subdevice_running(s))
+			do_become_nonbusy(dev, s);
+		mutex_unlock(&dev->mutex);
+	}
+out:
 	if (attach_locked)
 		up_read(&dev->attach_lock);
 
diff --git a/drivers/staging/comedi/comedilib.h b/drivers/staging/comedi/comedilib.h
index 56baf852ecf5..f9b56396e161 100644
--- a/drivers/staging/comedi/comedilib.h
+++ b/drivers/staging/comedi/comedilib.h
@@ -1,20 +1,20 @@
 /*
-    linux/include/comedilib.h
-    header file for kcomedilib
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
+ * comedilib.h
+ * Header file for kcomedilib
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 #ifndef _LINUX_COMEDILIB_H
 #define _LINUX_COMEDILIB_H
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
index c3b8f2d7611b..0c8cfa738727 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -78,8 +78,10 @@ obj-$(CONFIG_COMEDI_ADL_PCI8164)	+= adl_pci8164.o
 obj-$(CONFIG_COMEDI_ADL_PCI9111)	+= adl_pci9111.o
 obj-$(CONFIG_COMEDI_ADL_PCI9118)	+= adl_pci9118.o
 obj-$(CONFIG_COMEDI_ADV_PCI1710)	+= adv_pci1710.o
+obj-$(CONFIG_COMEDI_ADV_PCI1720)	+= adv_pci1720.o
 obj-$(CONFIG_COMEDI_ADV_PCI1723)	+= adv_pci1723.o
 obj-$(CONFIG_COMEDI_ADV_PCI1724)	+= adv_pci1724.o
+obj-$(CONFIG_COMEDI_ADV_PCI1760)	+= adv_pci1760.o
 obj-$(CONFIG_COMEDI_ADV_PCI_DIO)	+= adv_pci_dio.o
 obj-$(CONFIG_COMEDI_AMPLC_DIO200_PCI)	+= amplc_dio200_pci.o
 obj-$(CONFIG_COMEDI_AMPLC_PC236_PCI)	+= amplc_pci236.o
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 0dff1dbb53fb..4437ea3abe8d 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -603,10 +603,11 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 	unsigned short *array = data;
 	unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes);
 	unsigned int i;
+	__be16 *barray = data;
 
 	for (i = 0; i < num_samples; i++) {
 		if (devpriv->usedma)
-			array[i] = be16_to_cpu(array[i]);
+			array[i] = be16_to_cpu(barray[i]);
 		if (s->maxdata == 0xffff)
 			array[i] ^= 0x8000;
 		else
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 399c511cfe0a..2c1b6de30da8 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -11,8 +11,9 @@
  * Driver: adv_pci1710
  * Description: Comedi driver for Advantech PCI-1710 series boards
  * Devices: [Advantech] PCI-1710 (adv_pci1710), PCI-1710HG, PCI-1711,
- *   PCI-1713, PCI-1720, PCI-1731
+ *   PCI-1713, PCI-1731
  * Author: Michal Dobes <dobes@tesnet.cz>
+ * Updated: Fri, 29 Oct 2015 17:19:35 -0700
  * Status: works
  *
  * Configuration options: not applicable, uses PCI auto config
@@ -40,7 +41,13 @@
 #define PCI171X_AD_DATA_REG	0x00	/* R:   A/D data */
 #define PCI171X_SOFTTRG_REG	0x00	/* W:   soft trigger for A/D */
 #define PCI171X_RANGE_REG	0x02	/* W:   A/D gain/range register */
+#define PCI171X_RANGE_DIFF	BIT(5)
+#define PCI171X_RANGE_UNI	BIT(4)
+#define PCI171X_RANGE_GAIN(x)	(((x) & 0x7) << 0)
 #define PCI171X_MUX_REG		0x04	/* W:   A/D multiplexor control */
+#define PCI171X_MUX_CHANH(x)	(((x) & 0xf) << 8)
+#define PCI171X_MUX_CHANL(x)	(((x) & 0xf) << 0)
+#define PCI171X_MUX_CHAN(x)	(PCI171X_MUX_CHANH(x) | PCI171X_MUX_CHANL(x))
 #define PCI171X_STATUS_REG	0x06	/* R:   status register */
 #define PCI171X_STATUS_IRQ	BIT(11)	/* 1=IRQ occurred */
 #define PCI171X_STATUS_FF	BIT(10)	/* 1=FIFO is full, fatal error */
@@ -58,83 +65,58 @@
 #define PCI171X_CLRFIFO_REG	0x09	/* W:   clear FIFO */
 #define PCI171X_DA_REG(x)	(0x0a + ((x) * 2)) /* W:   D/A register */
 #define PCI171X_DAREF_REG	0x0e	/* W:   D/A reference control */
+#define PCI171X_DAREF(c, r)	(((r) & 0x3) << ((c) * 2))
+#define PCI171X_DAREF_MASK(c)	PCI171X_DAREF((c), 0x3)
 #define PCI171X_DI_REG		0x10	/* R:   digital inputs */
 #define PCI171X_DO_REG		0x10	/* W:   digital outputs */
 #define PCI171X_TIMER_BASE	0x18	/* R/W: 8254 timer */
 
-/*
- * PCI-1720 only has analog outputs and has a different
- * register map (dev->iobase)
- */
-#define PCI1720_DA_REG(x)	(0x00 + ((x) * 2)) /* W:   D/A registers */
-#define PCI1720_RANGE_REG	0x08	/* R/W: D/A range register */
-#define PCI1720_SYNC_REG	0x09	/* W:   D/A synchronized output */
-#define PCI1720_SYNC_CTRL_REG	0x0f	/* R/W: D/A synchronized control */
-#define PCI1720_SYNC_CTRL_SC0	BIT(0)	/* set synchronous output mode */
-
-static const struct comedi_lrange range_pci1710_3 = {
+static const struct comedi_lrange pci1710_ai_range = {
 	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
+		BIP_RANGE(5),		/* gain 1   (0x00) */
+		BIP_RANGE(2.5),		/* gain 2   (0x01) */
+		BIP_RANGE(1.25),	/* gain 4   (0x02) */
+		BIP_RANGE(0.625),	/* gain 8   (0x03) */
+		BIP_RANGE(10),		/* gain 0.5 (0x04) */
+		UNI_RANGE(10),		/* gain 1   (0x00 | UNI) */
+		UNI_RANGE(5),		/* gain 2   (0x01 | UNI) */
+		UNI_RANGE(2.5),		/* gain 4   (0x02 | UNI) */
+		UNI_RANGE(1.25)		/* gain 8   (0x03 | UNI) */
 	}
 };
 
-static const char range_codes_pci1710_3[] = { 0x00, 0x01, 0x02, 0x03, 0x04,
-					      0x10, 0x11, 0x12, 0x13 };
-
-static const struct comedi_lrange range_pci1710hg = {
+static const struct comedi_lrange pci1710hg_ai_range = {
 	12, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
+		BIP_RANGE(5),		/* gain 1    (0x00) */
+		BIP_RANGE(0.5),		/* gain 10   (0x01) */
+		BIP_RANGE(0.05),	/* gain 100  (0x02) */
+		BIP_RANGE(0.005),	/* gain 1000 (0x03) */
+		BIP_RANGE(10),		/* gain 0.5  (0x04) */
+		BIP_RANGE(1),		/* gain 5    (0x05) */
+		BIP_RANGE(0.1),		/* gain 50   (0x06) */
+		BIP_RANGE(0.01),	/* gain 500  (0x07) */
+		UNI_RANGE(10),		/* gain 1    (0x00 | UNI) */
+		UNI_RANGE(1),		/* gain 10   (0x01 | UNI) */
+		UNI_RANGE(0.1),		/* gain 100  (0x02 | UNI) */
+		UNI_RANGE(0.01)		/* gain 1000 (0x03 | UNI) */
 	}
 };
 
-static const char range_codes_pci1710hg[] = { 0x00, 0x01, 0x02, 0x03, 0x04,
-					      0x05, 0x06, 0x07, 0x10, 0x11,
-					      0x12, 0x13 };
-
-static const struct comedi_lrange range_pci17x1 = {
+static const struct comedi_lrange pci1711_ai_range = {
 	5, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const char range_codes_pci17x1[] = { 0x00, 0x01, 0x02, 0x03, 0x04 };
-
-static const struct comedi_lrange pci1720_ao_range = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10)
+		BIP_RANGE(10),		/* gain 1  (0x00) */
+		BIP_RANGE(5),		/* gain 2  (0x01) */
+		BIP_RANGE(2.5),		/* gain 4  (0x02) */
+		BIP_RANGE(1.25),	/* gain 8  (0x03) */
+		BIP_RANGE(0.625)	/* gain 16 (0x04) */
 	}
 };
 
 static const struct comedi_lrange pci171x_ao_range = {
-	2, {
-		UNI_RANGE(5),
-		UNI_RANGE(10)
+	3, {
+		UNI_RANGE(5),		/* internal -5V ref */
+		UNI_RANGE(10),		/* internal -10V ref */
+		RANGE_ext(0, 1)		/* external -Vref (+/-10V max) */
 	}
 };
 
@@ -143,82 +125,43 @@ enum pci1710_boardid {
 	BOARD_PCI1710HG,
 	BOARD_PCI1711,
 	BOARD_PCI1713,
-	BOARD_PCI1720,
 	BOARD_PCI1731,
 };
 
 struct boardtype {
-	const char *name;	/*  board name */
-	int n_aichan;		/*  num of A/D chans */
-	const struct comedi_lrange *rangelist_ai;	/*  rangelist for A/D */
-	const char *rangecode_ai;	/*  range codes for programming */
+	const char *name;
+	const struct comedi_lrange *ai_range;
+	unsigned int is_pci1711:1;
 	unsigned int is_pci1713:1;
-	unsigned int is_pci1720:1;
-	unsigned int has_irq:1;
-	unsigned int has_large_fifo:1;	/* 4K or 1K FIFO */
-	unsigned int has_diff_ai:1;
 	unsigned int has_ao:1;
-	unsigned int has_di_do:1;
-	unsigned int has_counter:1;
 };
 
 static const struct boardtype boardtypes[] = {
 	[BOARD_PCI1710] = {
 		.name		= "pci1710",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci1710_3,
-		.rangecode_ai	= range_codes_pci1710_3,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
+		.ai_range	= &pci1710_ai_range,
 		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1710HG] = {
 		.name		= "pci1710hg",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci1710hg,
-		.rangecode_ai	= range_codes_pci1710hg,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
+		.ai_range	= &pci1710hg_ai_range,
 		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1711] = {
 		.name		= "pci1711",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci17x1,
-		.rangecode_ai	= range_codes_pci17x1,
-		.has_irq	= 1,
+		.ai_range	= &pci1711_ai_range,
+		.is_pci1711	= 1,
 		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
 	},
 	[BOARD_PCI1713] = {
 		.name		= "pci1713",
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_pci1710_3,
-		.rangecode_ai	= range_codes_pci1710_3,
+		.ai_range	= &pci1710_ai_range,
 		.is_pci1713	= 1,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
-	},
-	[BOARD_PCI1720] = {
-		.name		= "pci1720",
-		.is_pci1720	= 1,
-		.has_ao		= 1,
 	},
 	[BOARD_PCI1731] = {
 		.name		= "pci1731",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci17x1,
-		.rangecode_ai	= range_codes_pci17x1,
-		.has_irq	= 1,
-		.has_di_do	= 1,
+		.ai_range	= &pci1711_ai_range,
+		.is_pci1711	= 1,
 	},
 };
 
@@ -226,14 +169,15 @@ struct pci1710_private {
 	unsigned int max_samples;
 	unsigned int ctrl;	/* control register value */
 	unsigned int ctrl_ext;	/* used to switch from TRIG_EXT to TRIG_xxx */
-	unsigned int mux_ext;	/* used to set the channel interval to scan */
+	unsigned int mux_scan;	/* used to set the channel interval to scan */
 	unsigned char ai_et;
 	unsigned int act_chanlist[32];	/*  list of scanned channel */
 	unsigned char saved_seglen;	/* len of the non-repeating chanlist */
 	unsigned char da_ranges;	/*  copy of D/A outpit range register */
+	unsigned char unipolar_gain;	/* adjust for unipolar gain codes */
 };
 
-static int pci171x_ai_check_chanlist(struct comedi_device *dev,
+static int pci1710_ai_check_chanlist(struct comedi_device *dev,
 				     struct comedi_subdevice *s,
 				     struct comedi_cmd *cmd)
 {
@@ -299,13 +243,12 @@ static int pci171x_ai_check_chanlist(struct comedi_device *dev,
 	return 0;
 }
 
-static void pci171x_ai_setup_chanlist(struct comedi_device *dev,
+static void pci1710_ai_setup_chanlist(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      unsigned int *chanlist,
 				      unsigned int n_chan,
 				      unsigned int seglen)
 {
-	const struct boardtype *board = dev->board_ptr;
 	struct pci1710_private *devpriv = dev->private;
 	unsigned int first_chan = CR_CHAN(chanlist[0]);
 	unsigned int last_chan = CR_CHAN(chanlist[seglen - 1]);
@@ -315,14 +258,18 @@ static void pci171x_ai_setup_chanlist(struct comedi_device *dev,
 		unsigned int chan = CR_CHAN(chanlist[i]);
 		unsigned int range = CR_RANGE(chanlist[i]);
 		unsigned int aref = CR_AREF(chanlist[i]);
-		unsigned int rangeval;
+		unsigned int rangeval = 0;
 
-		rangeval = board->rangecode_ai[range];
 		if (aref == AREF_DIFF)
-			rangeval |= 0x0020;
+			rangeval |= PCI171X_RANGE_DIFF;
+		if (comedi_range_is_unipolar(s, range)) {
+			rangeval |= PCI171X_RANGE_UNI;
+			range -= devpriv->unipolar_gain;
+		}
+		rangeval |= PCI171X_RANGE_GAIN(range);
 
 		/* select channel and set range */
-		outw(chan | (chan << 8), dev->iobase + PCI171X_MUX_REG);
+		outw(PCI171X_MUX_CHAN(chan), dev->iobase + PCI171X_MUX_REG);
 		outw(rangeval, dev->iobase + PCI171X_RANGE_REG);
 
 		devpriv->act_chanlist[i] = chan;
@@ -331,11 +278,12 @@ static void pci171x_ai_setup_chanlist(struct comedi_device *dev,
 		devpriv->act_chanlist[i] = CR_CHAN(chanlist[i]);
 
 	/* select channel interval to scan */
-	devpriv->mux_ext = first_chan | (last_chan << 8);
-	outw(devpriv->mux_ext, dev->iobase + PCI171X_MUX_REG);
+	devpriv->mux_scan = PCI171X_MUX_CHANL(first_chan) |
+			    PCI171X_MUX_CHANH(last_chan);
+	outw(devpriv->mux_scan, dev->iobase + PCI171X_MUX_REG);
 }
 
-static int pci171x_ai_eoc(struct comedi_device *dev,
+static int pci1710_ai_eoc(struct comedi_device *dev,
 			  struct comedi_subdevice *s,
 			  struct comedi_insn *insn,
 			  unsigned long context)
@@ -348,7 +296,7 @@ static int pci171x_ai_eoc(struct comedi_device *dev,
 	return -EBUSY;
 }
 
-static int pci171x_ai_read_sample(struct comedi_device *dev,
+static int pci1710_ai_read_sample(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  unsigned int cur_chan,
 				  unsigned int *val)
@@ -377,7 +325,7 @@ static int pci171x_ai_read_sample(struct comedi_device *dev,
 	return 0;
 }
 
-static int pci171x_ai_insn_read(struct comedi_device *dev,
+static int pci1710_ai_insn_read(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn,
 				unsigned int *data)
@@ -386,13 +334,14 @@ static int pci171x_ai_insn_read(struct comedi_device *dev,
 	int ret = 0;
 	int i;
 
-	devpriv->ctrl &= PCI171X_CTRL_CNT0;
-	devpriv->ctrl |= PCI171X_CTRL_SW;	/*  set software trigger */
+	/* enable software trigger */
+	devpriv->ctrl |= PCI171X_CTRL_SW;
 	outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG);
+
 	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 
-	pci171x_ai_setup_chanlist(dev, s, &insn->chanspec, 1, 1);
+	pci1710_ai_setup_chanlist(dev, s, &insn->chanspec, 1, 1);
 
 	for (i = 0; i < insn->n; i++) {
 		unsigned int val;
@@ -400,111 +349,40 @@ static int pci171x_ai_insn_read(struct comedi_device *dev,
 		/* start conversion */
 		outw(0, dev->iobase + PCI171X_SOFTTRG_REG);
 
-		ret = comedi_timeout(dev, s, insn, pci171x_ai_eoc, 0);
+		ret = comedi_timeout(dev, s, insn, pci1710_ai_eoc, 0);
 		if (ret)
 			break;
 
-		ret = pci171x_ai_read_sample(dev, s, 0, &val);
+		ret = pci1710_ai_read_sample(dev, s, 0, &val);
 		if (ret)
 			break;
 
 		data[i] = val;
 	}
 
+	/* disable software trigger */
+	devpriv->ctrl &= ~PCI171X_CTRL_SW;
+	outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG);
+
 	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 
 	return ret ? ret : insn->n;
 }
 
-static int pci171x_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	devpriv->da_ranges &= ~(1 << (chan << 1));
-	devpriv->da_ranges |= (range << (chan << 1));
-	outw(devpriv->da_ranges, dev->iobase + PCI171X_DAREF_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + PCI171X_DA_REG(chan));
-	}
-
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci171x_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	data[1] = inw(dev->iobase + PCI171X_DI_REG);
-
-	return insn->n;
-}
-
-static int pci171x_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PCI171X_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci1720_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	val = devpriv->da_ranges & (~(0x03 << (chan << 1)));
-	val |= (range << (chan << 1));
-	if (val != devpriv->da_ranges) {
-		outb(val, dev->iobase + PCI1720_RANGE_REG);
-		devpriv->da_ranges = val;
-	}
-
-	val = s->readback[chan];
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + PCI1720_DA_REG(chan));
-		outb(0, dev->iobase + PCI1720_SYNC_REG); /* update outputs */
-	}
-
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci171x_ai_cancel(struct comedi_device *dev,
+static int pci1710_ai_cancel(struct comedi_device *dev,
 			     struct comedi_subdevice *s)
 {
 	struct pci1710_private *devpriv = dev->private;
 
-	devpriv->ctrl &= PCI171X_CTRL_CNT0;
-	devpriv->ctrl |= PCI171X_CTRL_SW;
-	/* reset any operations */
+	/* disable A/D triggers and interrupt sources */
+	devpriv->ctrl &= PCI171X_CTRL_CNT0;	/* preserve counter 0 clk src */
 	outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG);
+
+	/* disable pacer */
 	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
+
+	/* clear A/D FIFO and any pending interrutps */
 	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 
@@ -535,7 +413,7 @@ static void pci1710_handle_every_sample(struct comedi_device *dev,
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 
 	for (; !(inw(dev->iobase + PCI171X_STATUS_REG) & PCI171X_STATUS_FE);) {
-		ret = pci171x_ai_read_sample(dev, s, s->async->cur_chan, &val);
+		ret = pci1710_ai_read_sample(dev, s, s->async->cur_chan, &val);
 		if (ret) {
 			s->async->events |= COMEDI_CB_ERROR;
 			break;
@@ -579,7 +457,7 @@ static void pci1710_handle_fifo(struct comedi_device *dev,
 		unsigned int val;
 		int ret;
 
-		ret = pci171x_ai_read_sample(dev, s, s->async->cur_chan, &val);
+		ret = pci1710_ai_read_sample(dev, s, s->async->cur_chan, &val);
 		if (ret) {
 			s->async->events |= COMEDI_CB_ERROR;
 			break;
@@ -598,7 +476,7 @@ static void pci1710_handle_fifo(struct comedi_device *dev,
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 }
 
-static irqreturn_t interrupt_service_pci1710(int irq, void *d)
+static irqreturn_t pci1710_irq_handler(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct pci1710_private *devpriv = dev->private;
@@ -624,7 +502,7 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 		outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
 		outb(0, dev->iobase + PCI171X_CLRINT_REG);
 		/* no sample on this interrupt; reset the channel interval */
-		outw(devpriv->mux_ext, dev->iobase + PCI171X_MUX_REG);
+		outw(devpriv->mux_scan, dev->iobase + PCI171X_MUX_REG);
 		outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG);
 		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
 		return IRQ_HANDLED;
@@ -640,12 +518,12 @@ static irqreturn_t interrupt_service_pci1710(int irq, void *d)
 	return IRQ_HANDLED;
 }
 
-static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
+static int pci1710_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct pci1710_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
-	pci171x_ai_setup_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len,
+	pci1710_ai_setup_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len,
 				  devpriv->saved_seglen);
 
 	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
@@ -681,7 +559,7 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	return 0;
 }
 
-static int pci171x_ai_cmdtest(struct comedi_device *dev,
+static int pci1710_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_cmd *cmd)
 {
@@ -745,7 +623,7 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 
 	/* Step 5: check channel list */
 
-	err |= pci171x_ai_check_chanlist(dev, s, cmd);
+	err |= pci1710_ai_check_chanlist(dev, s, cmd);
 
 	if (err)
 		return 5;
@@ -753,7 +631,55 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
-static int pci171x_insn_counter_config(struct comedi_device *dev,
+static int pci1710_ao_insn_write(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	struct pci1710_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
+	unsigned int val = s->readback[chan];
+	int i;
+
+	devpriv->da_ranges &= ~PCI171X_DAREF_MASK(chan);
+	devpriv->da_ranges |= PCI171X_DAREF(chan, range);
+	outw(devpriv->da_ranges, dev->iobase + PCI171X_DAREF_REG);
+
+	for (i = 0; i < insn->n; i++) {
+		val = data[i];
+		outw(val, dev->iobase + PCI171X_DA_REG(chan));
+	}
+
+	s->readback[chan] = val;
+
+	return insn->n;
+}
+
+static int pci1710_di_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	data[1] = inw(dev->iobase + PCI171X_DI_REG);
+
+	return insn->n;
+}
+
+static int pci1710_do_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	if (comedi_dio_update_state(s, data))
+		outw(s->state, dev->iobase + PCI171X_DO_REG);
+
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int pci1710_counter_insn_config(struct comedi_device *dev,
 				       struct comedi_subdevice *s,
 				       struct comedi_insn *insn,
 				       unsigned int *data)
@@ -780,7 +706,7 @@ static int pci171x_insn_counter_config(struct comedi_device *dev,
 			data[2] = 0;
 		} else {
 			data[1] = 0;
-			data[2] = I8254_OSC_BASE_10MHZ;
+			data[2] = I8254_OSC_BASE_1MHZ;
 		}
 		break;
 	default:
@@ -790,56 +716,29 @@ static int pci171x_insn_counter_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int pci171x_reset(struct comedi_device *dev)
+static void pci1710_reset(struct comedi_device *dev)
 {
 	const struct boardtype *board = dev->board_ptr;
-	struct pci1710_private *devpriv = dev->private;
 
-	/* Software trigger, CNT0=external */
-	devpriv->ctrl = PCI171X_CTRL_SW | PCI171X_CTRL_CNT0;
-	/* reset any operations */
-	outw(devpriv->ctrl, dev->iobase + PCI171X_CTRL_REG);
+	/*
+	 * Disable A/D triggers and interrupt sources, set counter 0
+	 * to use internal 1 MHz clock.
+	 */
+	outw(0, dev->iobase + PCI171X_CTRL_REG);
+
+	/* clear A/D FIFO and any pending interrutps */
 	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
 	outb(0, dev->iobase + PCI171X_CLRINT_REG);
-	devpriv->da_ranges = 0;
+
 	if (board->has_ao) {
 		/* set DACs to 0..5V and outputs to 0V */
-		outb(devpriv->da_ranges, dev->iobase + PCI171X_DAREF_REG);
+		outb(0, dev->iobase + PCI171X_DAREF_REG);
 		outw(0, dev->iobase + PCI171X_DA_REG(0));
 		outw(0, dev->iobase + PCI171X_DA_REG(1));
 	}
-	outw(0, dev->iobase + PCI171X_DO_REG);	/*  digital outputs to 0 */
-	outb(0, dev->iobase + PCI171X_CLRFIFO_REG);
-	outb(0, dev->iobase + PCI171X_CLRINT_REG);
 
-	return 0;
-}
-
-static int pci1720_reset(struct comedi_device *dev)
-{
-	struct pci1710_private *devpriv = dev->private;
-	/* set synchronous output mode */
-	outb(PCI1720_SYNC_CTRL_SC0, dev->iobase + PCI1720_SYNC_CTRL_REG);
-	devpriv->da_ranges = 0xAA;
-	/* set all ranges to +/-5V and outputs to 0V */
-	outb(devpriv->da_ranges, dev->iobase + PCI1720_RANGE_REG);
-	outw(0x0800, dev->iobase + PCI1720_DA_REG(0));
-	outw(0x0800, dev->iobase + PCI1720_DA_REG(1));
-	outw(0x0800, dev->iobase + PCI1720_DA_REG(2));
-	outw(0x0800, dev->iobase + PCI1720_DA_REG(3));
-	outb(0, dev->iobase + PCI1720_SYNC_REG);	/* update outputs */
-
-	return 0;
-}
-
-static int pci1710_reset(struct comedi_device *dev)
-{
-	const struct boardtype *board = dev->board_ptr;
-
-	if (board->is_pci1720)
-		return pci1720_reset(dev);
-
-	return pci171x_reset(dev);
+	/* set digital outputs to 0 */
+	outw(0, dev->iobase + PCI171X_DO_REG);
 }
 
 static int pci1710_auto_attach(struct comedi_device *dev,
@@ -850,6 +749,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 	struct pci1710_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret, subdev, n_subdevices;
+	int i;
 
 	if (context < ARRAY_SIZE(boardtypes))
 		board = &boardtypes[context];
@@ -872,15 +772,16 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 	if (!dev->pacer)
 		return -ENOMEM;
 
-	n_subdevices = 0;
-	if (board->n_aichan)
-		n_subdevices++;
+	n_subdevices = 1;	/* all boards have analog inputs */
 	if (board->has_ao)
 		n_subdevices++;
-	if (board->has_di_do)
-		n_subdevices += 2;
-	if (board->has_counter)
-		n_subdevices++;
+	if (!board->is_pci1713) {
+		/*
+		 * All other boards have digital inputs and outputs as
+		 * well as a user counter.
+		 */
+		n_subdevices += 3;
+	}
 
 	ret = comedi_alloc_subdevices(dev, n_subdevices);
 	if (ret)
@@ -888,8 +789,8 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 
 	pci1710_reset(dev);
 
-	if (board->has_irq && pcidev->irq) {
-		ret = request_irq(pcidev->irq, interrupt_service_pci1710,
+	if (pcidev->irq) {
+		ret = request_irq(pcidev->irq, pci1710_irq_handler,
 				  IRQF_SHARED, dev->board_name, dev);
 		if (ret == 0)
 			dev->irq = pcidev->irq;
@@ -897,109 +798,89 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 
 	subdev = 0;
 
-	if (board->n_aichan) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND;
-		if (board->has_diff_ai)
-			s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= board->n_aichan;
-		s->maxdata	= 0x0fff;
-		s->range_table	= board->rangelist_ai;
-		s->insn_read	= pci171x_ai_insn_read;
-		if (dev->irq) {
-			dev->read_subdev = s;
-			s->subdev_flags	|= SDF_CMD_READ;
-			s->len_chanlist	= s->n_chan;
-			s->do_cmdtest	= pci171x_ai_cmdtest;
-			s->do_cmd	= pci171x_ai_cmd;
-			s->cancel	= pci171x_ai_cancel;
+	/* Analog Input subdevice */
+	s = &dev->subdevices[subdev++];
+	s->type		= COMEDI_SUBD_AI;
+	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
+	if (!board->is_pci1711)
+		s->subdev_flags	|= SDF_DIFF;
+	s->n_chan	= board->is_pci1713 ? 32 : 16;
+	s->maxdata	= 0x0fff;
+	s->range_table	= board->ai_range;
+	s->insn_read	= pci1710_ai_insn_read;
+	if (dev->irq) {
+		dev->read_subdev = s;
+		s->subdev_flags	|= SDF_CMD_READ;
+		s->len_chanlist	= s->n_chan;
+		s->do_cmdtest	= pci1710_ai_cmdtest;
+		s->do_cmd	= pci1710_ai_cmd;
+		s->cancel	= pci1710_ai_cancel;
+	}
+
+	/* find the value needed to adjust for unipolar gain codes */
+	for (i = 0; i < s->range_table->length; i++) {
+		if (comedi_range_is_unipolar(s, i)) {
+			devpriv->unipolar_gain = i;
+			break;
 		}
-		subdev++;
 	}
 
 	if (board->has_ao) {
-		s = &dev->subdevices[subdev];
+		/* Analog Output subdevice */
+		s = &dev->subdevices[subdev++];
 		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
+		s->n_chan	= 2;
 		s->maxdata	= 0x0fff;
-		if (board->is_pci1720) {
-			s->n_chan	= 4;
-			s->range_table	= &pci1720_ao_range;
-			s->insn_write	= pci1720_ao_insn_write;
-		} else {
-			s->n_chan	= 2;
-			s->range_table	= &pci171x_ao_range;
-			s->insn_write	= pci171x_ao_insn_write;
-		}
+		s->range_table	= &pci171x_ao_range;
+		s->insn_write	= pci1710_ao_insn_write;
 
 		ret = comedi_alloc_subdev_readback(s);
 		if (ret)
 			return ret;
-
-		/* initialize the readback values to match the board reset */
-		if (board->is_pci1720) {
-			int i;
-
-			for (i = 0; i < s->n_chan; i++)
-				s->readback[i] = 0x0800;
-		}
-
-		subdev++;
 	}
 
-	if (board->has_di_do) {
-		s = &dev->subdevices[subdev];
+	if (!board->is_pci1713) {
+		/* Digital Input subdevice */
+		s = &dev->subdevices[subdev++];
 		s->type		= COMEDI_SUBD_DI;
 		s->subdev_flags	= SDF_READABLE;
 		s->n_chan	= 16;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
-		s->insn_bits	= pci171x_di_insn_bits;
-		subdev++;
+		s->insn_bits	= pci1710_di_insn_bits;
 
-		s = &dev->subdevices[subdev];
+		/* Digital Output subdevice */
+		s = &dev->subdevices[subdev++];
 		s->type		= COMEDI_SUBD_DO;
 		s->subdev_flags	= SDF_WRITABLE;
 		s->n_chan	= 16;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
-		s->insn_bits	= pci171x_do_insn_bits;
-		subdev++;
-	}
+		s->insn_bits	= pci1710_do_insn_bits;
 
-	/* Counter subdevice (8254) */
-	if (board->has_counter) {
-		s = &dev->subdevices[subdev];
+		/* Counter subdevice (8254) */
+		s = &dev->subdevices[subdev++];
 		comedi_8254_subdevice_init(s, dev->pacer);
 
-		dev->pacer->insn_config = pci171x_insn_counter_config;
+		dev->pacer->insn_config = pci1710_counter_insn_config;
 
 		/* counters 1 and 2 are used internally for the pacer */
 		comedi_8254_set_busy(dev->pacer, 1, true);
 		comedi_8254_set_busy(dev->pacer, 2, true);
-
-		subdev++;
 	}
 
 	/* max_samples is half the FIFO size (2 bytes/sample) */
-	devpriv->max_samples = (board->has_large_fifo) ? 2048 : 512;
+	devpriv->max_samples = (board->is_pci1711) ? 512 : 2048;
 
 	return 0;
 }
 
-static void pci1710_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		pci1710_reset(dev);
-	comedi_pci_detach(dev);
-}
-
 static struct comedi_driver adv_pci1710_driver = {
 	.driver_name	= "adv_pci1710",
 	.module		= THIS_MODULE,
 	.auto_attach	= pci1710_auto_attach,
-	.detach		= pci1710_detach,
+	.detach		= comedi_pci_detach,
 };
 
 static int adv_pci1710_pci_probe(struct pci_dev *dev,
@@ -1063,7 +944,6 @@ static const struct pci_device_id adv_pci1710_pci_table[] = {
 	},
 	{ PCI_VDEVICE(ADVANTECH, 0x1711), BOARD_PCI1711 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1713), BOARD_PCI1713 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1720), BOARD_PCI1720 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1731), BOARD_PCI1731 },
 	{ 0 }
 };
diff --git a/drivers/staging/comedi/drivers/adv_pci1720.c b/drivers/staging/comedi/drivers/adv_pci1720.c
new file mode 100644
index 000000000000..4830a1c93d15
--- /dev/null
+++ b/drivers/staging/comedi/drivers/adv_pci1720.c
@@ -0,0 +1,195 @@
+/*
+ * COMEDI driver for Advantech PCI-1720U
+ * Copyright (c) 2015 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Separated from the adv_pci1710 driver written by:
+ * Michal Dobes <dobes@tesnet.cz>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Driver: adv_pci1720
+ * Description: 4-channel Isolated D/A Output board
+ * Devices: [Advantech] PCI-7120U (adv_pci1720)
+ * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
+ * Updated: Fri, 29 Oct 2015 17:19:35 -0700
+ * Status: untested
+ *
+ * Configuration options: not applicable, uses PCI auto config
+ *
+ * The PCI-1720 has 4 isolated 12-bit analog output channels with multiple
+ * output ranges. It also has a BoardID switch to allow differentiating
+ * multiple boards in the system.
+ *
+ * The analog outputs can operate in two modes, immediate and synchronized.
+ * This driver currently does not support the synchronized output mode.
+ *
+ * Jumpers JP1 to JP4 are used to set the current sink ranges for each
+ * analog output channel. In order to use the current sink ranges, the
+ * unipolar 5V range must be used. The voltage output and sink output for
+ * each channel is available on the connector as separate pins.
+ *
+ * Jumper JP5 controls the "hot" reset state of the analog outputs.
+ * Depending on its setting, the analog outputs will either keep the
+ * last settings and output values or reset to the default state after
+ * a "hot" reset. The default state for all channels is uniploar 5V range
+ * and all the output values are 0V. To allow this feature to work, the
+ * analog outputs are not "reset" when the driver attaches.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include "../comedi_pci.h"
+
+/*
+ * PCI BAR2 Register map (dev->iobase)
+ */
+#define PCI1720_AO_LSB_REG(x)		(0x00 + ((x) * 2))
+#define PCI1720_AO_MSB_REG(x)		(0x01 + ((x) * 2))
+#define PCI1720_AO_RANGE_REG		0x08
+#define PCI1720_AO_RANGE(c, r)		(((r) & 0x3) << ((c) * 2))
+#define PCI1720_AO_RANGE_MASK(c)	PCI1720_AO_RANGE((c), 0x3)
+#define PCI1720_SYNC_REG		0x09
+#define PCI1720_SYNC_CTRL_REG		0x0f
+#define PCI1720_SYNC_CTRL_SC0		BIT(0)
+#define PCI1720_BOARDID_REG		0x14
+
+static const struct comedi_lrange pci1720_ao_range = {
+	4, {
+		UNI_RANGE(5),
+		UNI_RANGE(10),
+		BIP_RANGE(5),
+		BIP_RANGE(10)
+	}
+};
+
+static int pci1720_ao_insn_write(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
+	unsigned int val;
+	int i;
+
+	/* set the channel range and polarity */
+	val = inb(dev->iobase + PCI1720_AO_RANGE_REG);
+	val &= ~PCI1720_AO_RANGE_MASK(chan);
+	val |= PCI1720_AO_RANGE(chan, range);
+	outb(val, dev->iobase + PCI1720_AO_RANGE_REG);
+
+	val = s->readback[chan];
+	for (i = 0; i < insn->n; i++) {
+		val = data[i];
+
+		outb(val & 0xff, dev->iobase + PCI1720_AO_LSB_REG(chan));
+		outb((val >> 8) & 0xff, dev->iobase + PCI1720_AO_MSB_REG(chan));
+
+		/* conversion time is 2us (500 kHz throughput) */
+		usleep_range(2, 100);
+	}
+
+	s->readback[chan] = val;
+
+	return insn->n;
+}
+
+static int pci1720_di_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	data[1] = inb(dev->iobase + PCI1720_BOARDID_REG);
+
+	return insn->n;
+}
+
+static int pci1720_auto_attach(struct comedi_device *dev,
+			       unsigned long context)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct comedi_subdevice *s;
+	int ret;
+
+	ret = comedi_pci_enable(dev);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, 2);
+
+	ret = comedi_alloc_subdevices(dev, 2);
+	if (ret)
+		return ret;
+
+	/* Analog Output subdevice */
+	s = &dev->subdevices[0];
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 0x0fff;
+	s->range_table	= &pci1720_ao_range;
+	s->insn_write	= pci1720_ao_insn_write;
+
+	ret = comedi_alloc_subdev_readback(s);
+	if (ret)
+		return ret;
+
+	/* Digital Input subdevice (BoardID SW1) */
+	s = &dev->subdevices[1];
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci1720_di_insn_bits;
+
+	/* disable synchronized output, channels update when written */
+	outb(0, dev->iobase + PCI1720_SYNC_CTRL_REG);
+
+	return 0;
+}
+
+static struct comedi_driver adv_pci1720_driver = {
+	.driver_name	= "adv_pci1720",
+	.module		= THIS_MODULE,
+	.auto_attach	= pci1720_auto_attach,
+	.detach		= comedi_pci_detach,
+};
+
+static int adv_pci1720_pci_probe(struct pci_dev *dev,
+				 const struct pci_device_id *id)
+{
+	return comedi_pci_auto_config(dev, &adv_pci1720_driver,
+				      id->driver_data);
+}
+
+static const struct pci_device_id adv_pci1720_pci_table[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1720) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, adv_pci1720_pci_table);
+
+static struct pci_driver adv_pci1720_pci_driver = {
+	.name		= "adv_pci1720",
+	.id_table	= adv_pci1720_pci_table,
+	.probe		= adv_pci1720_pci_probe,
+	.remove		= comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(adv_pci1720_driver, adv_pci1720_pci_driver);
+
+MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_DESCRIPTION("Comedi driver for Advantech PCI-1720 Analog Output board");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci1760.c b/drivers/staging/comedi/drivers/adv_pci1760.c
new file mode 100644
index 000000000000..d7dd1e55e347
--- /dev/null
+++ b/drivers/staging/comedi/drivers/adv_pci1760.c
@@ -0,0 +1,432 @@
+/*
+ * COMEDI driver for the Advantech PCI-1760
+ * Copyright (C) 2015 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Based on the pci1760 support in the adv_pci_dio driver written by:
+ *	Michal Dobes <dobes@tesnet.cz>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * Driver: adv_pci1760
+ * Description: Advantech PCI-1760 Relay & Isolated Digital Input Card
+ * Devices: [Advantech] PCI-1760 (adv_pci1760)
+ * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
+ * Updated: Fri, 13 Nov 2015 12:34:00 -0700
+ * Status: untested
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ */
+
+#include <linux/module.h>
+
+#include "../comedi_pci.h"
+
+/*
+ * PCI-1760 Register Map
+ *
+ * Outgoing Mailbox Bytes
+ * OMB3: Not used (must be 0)
+ * OMB2: The command code to the PCI-1760
+ * OMB1: The hi byte of the parameter for the command in OMB2
+ * OMB0: The lo byte of the parameter for the command in OMB2
+ *
+ * Incoming Mailbox Bytes
+ * IMB3: The Isolated Digital Input status (updated every 100us)
+ * IMB2: The current command (matches OMB2 when command is successful)
+ * IMB1: The hi byte of the feedback data for the command in OMB2
+ * IMB0: The lo byte of the feedback data for the command in OMB2
+ *
+ * Interrupt Control/Status
+ * INTCSR3: Not used (must be 0)
+ * INTCSR2: The interrupt status (read only)
+ * INTCSR1: Interrupt enable/disable
+ * INTCSR0: Not used (must be 0)
+ */
+#define PCI1760_OMB_REG(x)		(0x0c + (x))
+#define PCI1760_IMB_REG(x)		(0x1c + (x))
+#define PCI1760_INTCSR_REG(x)		(0x38 + (x))
+#define PCI1760_INTCSR1_IRQ_ENA		BIT(5)
+#define PCI1760_INTCSR2_OMB_IRQ		BIT(0)
+#define PCI1760_INTCSR2_IMB_IRQ		BIT(1)
+#define PCI1760_INTCSR2_IRQ_STATUS	BIT(6)
+#define PCI1760_INTCSR2_IRQ_ASSERTED	BIT(7)
+
+/* PCI-1760 command codes */
+#define PCI1760_CMD_CLR_IMB2		0x00	/* Clears IMB2 */
+#define PCI1760_CMD_SET_DO		0x01	/* Set output state */
+#define PCI1760_CMD_GET_DO		0x02	/* Read output status */
+#define PCI1760_CMD_GET_STATUS		0x03	/* Read current status */
+#define PCI1760_CMD_GET_FW_VER		0x0e	/* Read firware version */
+#define PCI1760_CMD_GET_HW_VER		0x0f	/* Read hardware version */
+#define PCI1760_CMD_SET_PWM_HI(x)	(0x10 + (x) * 2) /* Set "hi" period */
+#define PCI1760_CMD_SET_PWM_LO(x)	(0x11 + (x) * 2) /* Set "lo" period */
+#define PCI1760_CMD_SET_PWM_CNT(x)	(0x14 + (x)) /* Set burst count */
+#define PCI1760_CMD_ENA_PWM		0x1f	/* Enable PWM outputs */
+#define PCI1760_CMD_ENA_FILT		0x20	/* Enable input filter */
+#define PCI1760_CMD_ENA_PAT_MATCH	0x21	/* Enable input pattern match */
+#define PCI1760_CMD_SET_PAT_MATCH	0x22	/* Set input pattern match */
+#define PCI1760_CMD_ENA_RISE_EDGE	0x23	/* Enable input rising edge */
+#define PCI1760_CMD_ENA_FALL_EDGE	0x24	/* Enable input falling edge */
+#define PCI1760_CMD_ENA_CNT		0x28	/* Enable counter */
+#define PCI1760_CMD_RST_CNT		0x29	/* Reset counter */
+#define PCI1760_CMD_ENA_CNT_OFLOW	0x2a	/* Enable counter overflow */
+#define PCI1760_CMD_ENA_CNT_MATCH	0x2b	/* Enable counter match */
+#define PCI1760_CMD_SET_CNT_EDGE	0x2c	/* Set counter edge */
+#define PCI1760_CMD_GET_CNT		0x2f	/* Reads counter value */
+#define PCI1760_CMD_SET_HI_SAMP(x)	(0x30 + (x)) /* Set "hi" sample time */
+#define PCI1760_CMD_SET_LO_SAMP(x)	(0x38 + (x)) /* Set "lo" sample time */
+#define PCI1760_CMD_SET_CNT(x)		(0x40 + (x)) /* Set counter reset val */
+#define PCI1760_CMD_SET_CNT_MATCH(x)	(0x48 + (x)) /* Set counter match val */
+#define PCI1760_CMD_GET_INT_FLAGS	0x60	/* Read interrupt flags */
+#define PCI1760_CMD_GET_INT_FLAGS_MATCH	BIT(0)
+#define PCI1760_CMD_GET_INT_FLAGS_COS	BIT(1)
+#define PCI1760_CMD_GET_INT_FLAGS_OFLOW	BIT(2)
+#define PCI1760_CMD_GET_OS		0x61	/* Read edge change flags */
+#define PCI1760_CMD_GET_CNT_STATUS	0x62	/* Read counter oflow/match */
+
+#define PCI1760_CMD_TIMEOUT		250	/* 250 usec timeout */
+#define PCI1760_CMD_RETRIES		3	/* limit number of retries */
+
+#define PCI1760_PWM_TIMEBASE		100000	/* 1 unit = 100 usec */
+
+static int pci1760_send_cmd(struct comedi_device *dev,
+			    unsigned char cmd, unsigned short val)
+{
+	unsigned long timeout;
+
+	/* send the command and parameter */
+	outb(val & 0xff, dev->iobase + PCI1760_OMB_REG(0));
+	outb((val >> 8) & 0xff, dev->iobase + PCI1760_OMB_REG(1));
+	outb(cmd, dev->iobase + PCI1760_OMB_REG(2));
+	outb(0, dev->iobase + PCI1760_OMB_REG(3));
+
+	/* datasheet says to allow up to 250 usec for the command to complete */
+	timeout = jiffies + usecs_to_jiffies(PCI1760_CMD_TIMEOUT);
+	do {
+		if (inb(dev->iobase + PCI1760_IMB_REG(2)) == cmd) {
+			/* command success; return the feedback data */
+			return inb(dev->iobase + PCI1760_IMB_REG(0)) |
+			       (inb(dev->iobase + PCI1760_IMB_REG(1)) << 8);
+		}
+		cpu_relax();
+	} while (time_before(jiffies, timeout));
+
+	return -EBUSY;
+}
+
+static int pci1760_cmd(struct comedi_device *dev,
+		       unsigned char cmd, unsigned short val)
+{
+	int repeats;
+	int ret;
+
+	/* send PCI1760_CMD_CLR_IMB2 between identical commands */
+	if (inb(dev->iobase + PCI1760_IMB_REG(2)) == cmd) {
+		ret = pci1760_send_cmd(dev, PCI1760_CMD_CLR_IMB2, 0);
+		if (ret < 0) {
+			/* timeout? try it once more */
+			ret = pci1760_send_cmd(dev, PCI1760_CMD_CLR_IMB2, 0);
+			if (ret < 0)
+				return -ETIMEDOUT;
+		}
+	}
+
+	/* datasheet says to keep retrying the command */
+	for (repeats = 0; repeats < PCI1760_CMD_RETRIES; repeats++) {
+		ret = pci1760_send_cmd(dev, cmd, val);
+		if (ret >= 0)
+			return ret;
+	}
+
+	/* command failed! */
+	return -ETIMEDOUT;
+}
+
+static int pci1760_di_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	data[1] = inb(dev->iobase + PCI1760_IMB_REG(3));
+
+	return insn->n;
+}
+
+static int pci1760_do_insn_bits(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	int ret;
+
+	if (comedi_dio_update_state(s, data)) {
+		ret = pci1760_cmd(dev, PCI1760_CMD_SET_DO, s->state);
+		if (ret < 0)
+			return ret;
+	}
+
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int pci1760_pwm_ns_to_div(unsigned int flags, unsigned int ns)
+{
+	unsigned int divisor;
+
+	switch (flags) {
+	case CMDF_ROUND_NEAREST:
+		divisor = DIV_ROUND_CLOSEST(ns, PCI1760_PWM_TIMEBASE);
+		break;
+	case CMDF_ROUND_UP:
+		divisor = DIV_ROUND_UP(ns, PCI1760_PWM_TIMEBASE);
+		break;
+	case CMDF_ROUND_DOWN:
+		divisor = ns / PCI1760_PWM_TIMEBASE;
+	default:
+		return -EINVAL;
+	}
+
+	if (divisor < 1)
+		divisor = 1;
+	if (divisor > 0xffff)
+		divisor = 0xffff;
+
+	return divisor;
+}
+
+static int pci1760_pwm_enable(struct comedi_device *dev,
+			      unsigned int chan, bool enable)
+{
+	int ret;
+
+	ret = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS, PCI1760_CMD_ENA_PWM);
+	if (ret < 0)
+		return ret;
+
+	if (enable)
+		ret |= BIT(chan);
+	else
+		ret &= ~BIT(chan);
+
+	return pci1760_cmd(dev, PCI1760_CMD_ENA_PWM, ret);
+}
+
+static int pci1760_pwm_insn_config(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
+{
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int hi_div;
+	int lo_div;
+	int ret;
+
+	switch (data[0]) {
+	case INSN_CONFIG_ARM:
+		ret = pci1760_pwm_enable(dev, chan, false);
+		if (ret < 0)
+			return ret;
+
+		if (data[1] > 0xffff)
+			return -EINVAL;
+		ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_CNT(chan), data[1]);
+		if (ret < 0)
+			return ret;
+
+		ret = pci1760_pwm_enable(dev, chan, true);
+		if (ret < 0)
+			return ret;
+		break;
+	case INSN_CONFIG_DISARM:
+		ret = pci1760_pwm_enable(dev, chan, false);
+		if (ret < 0)
+			return ret;
+		break;
+	case INSN_CONFIG_PWM_OUTPUT:
+		ret = pci1760_pwm_enable(dev, chan, false);
+		if (ret < 0)
+			return ret;
+
+		hi_div = pci1760_pwm_ns_to_div(data[1], data[2]);
+		lo_div = pci1760_pwm_ns_to_div(data[3], data[4]);
+		if (hi_div < 0 || lo_div < 0)
+			return -EINVAL;
+		if ((hi_div * PCI1760_PWM_TIMEBASE) != data[2] ||
+		    (lo_div * PCI1760_PWM_TIMEBASE) != data[4]) {
+			data[2] = hi_div * PCI1760_PWM_TIMEBASE;
+			data[4] = lo_div * PCI1760_PWM_TIMEBASE;
+			return -EAGAIN;
+		}
+		ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_HI(chan), hi_div);
+		if (ret < 0)
+			return ret;
+		ret = pci1760_cmd(dev, PCI1760_CMD_SET_PWM_LO(chan), lo_div);
+		if (ret < 0)
+			return ret;
+		break;
+	case INSN_CONFIG_GET_PWM_OUTPUT:
+		hi_div = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+				     PCI1760_CMD_SET_PWM_HI(chan));
+		lo_div = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+				     PCI1760_CMD_SET_PWM_LO(chan));
+		if (hi_div < 0 || lo_div < 0)
+			return -ETIMEDOUT;
+
+		data[1] = hi_div * PCI1760_PWM_TIMEBASE;
+		data[2] = lo_div * PCI1760_PWM_TIMEBASE;
+		break;
+	case INSN_CONFIG_GET_PWM_STATUS:
+		ret = pci1760_cmd(dev, PCI1760_CMD_GET_STATUS,
+				  PCI1760_CMD_ENA_PWM);
+		if (ret < 0)
+			return ret;
+
+		data[1] = (ret & BIT(chan)) ? 1 : 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return insn->n;
+}
+
+static void pci1760_reset(struct comedi_device *dev)
+{
+	int i;
+
+	/* disable interrupts (intcsr2 is read-only) */
+	outb(0, dev->iobase + PCI1760_INTCSR_REG(0));
+	outb(0, dev->iobase + PCI1760_INTCSR_REG(1));
+	outb(0, dev->iobase + PCI1760_INTCSR_REG(3));
+
+	/* disable counters */
+	pci1760_cmd(dev, PCI1760_CMD_ENA_CNT, 0);
+
+	/* disable overflow interrupts */
+	pci1760_cmd(dev, PCI1760_CMD_ENA_CNT_OFLOW, 0);
+
+	/* disable match */
+	pci1760_cmd(dev, PCI1760_CMD_ENA_CNT_MATCH, 0);
+
+	/* set match and counter reset values */
+	for (i = 0; i < 8; i++) {
+		pci1760_cmd(dev, PCI1760_CMD_SET_CNT_MATCH(i), 0x8000);
+		pci1760_cmd(dev, PCI1760_CMD_SET_CNT(i), 0x0000);
+	}
+
+	/* reset counters to reset values */
+	pci1760_cmd(dev, PCI1760_CMD_RST_CNT, 0xff);
+
+	/* set counter count edges */
+	pci1760_cmd(dev, PCI1760_CMD_SET_CNT_EDGE, 0);
+
+	/* disable input filters */
+	pci1760_cmd(dev, PCI1760_CMD_ENA_FILT, 0);
+
+	/* disable pattern matching */
+	pci1760_cmd(dev, PCI1760_CMD_ENA_PAT_MATCH, 0);
+
+	/* set pattern match value */
+	pci1760_cmd(dev, PCI1760_CMD_SET_PAT_MATCH, 0);
+}
+
+static int pci1760_auto_attach(struct comedi_device *dev,
+			       unsigned long context)
+{
+	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
+	struct comedi_subdevice *s;
+	int ret;
+
+	ret = comedi_pci_enable(dev);
+	if (ret)
+		return ret;
+	dev->iobase = pci_resource_start(pcidev, 0);
+
+	pci1760_reset(dev);
+
+	ret = comedi_alloc_subdevices(dev, 4);
+	if (ret)
+		return ret;
+
+	/* Digital Input subdevice */
+	s = &dev->subdevices[0];
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 8;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci1760_di_insn_bits;
+
+	/* Digital Output subdevice */
+	s = &dev->subdevices[1];
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 8;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pci1760_do_insn_bits;
+
+	/* get the current state of the outputs */
+	ret = pci1760_cmd(dev, PCI1760_CMD_GET_DO, 0);
+	if (ret < 0)
+		return ret;
+	s->state	= ret;
+
+	/* PWM subdevice */
+	s = &dev->subdevices[2];
+	s->type		= COMEDI_SUBD_PWM;
+	s->subdev_flags	= SDF_PWM_COUNTER;
+	s->n_chan	= 2;
+	s->insn_config	= pci1760_pwm_insn_config;
+
+	/* Counter subdevice */
+	s = &dev->subdevices[3];
+	s->type		= COMEDI_SUBD_UNUSED;
+
+	return 0;
+}
+
+static struct comedi_driver pci1760_driver = {
+	.driver_name	= "adv_pci1760",
+	.module		= THIS_MODULE,
+	.auto_attach	= pci1760_auto_attach,
+	.detach		= comedi_pci_detach,
+};
+
+static int pci1760_pci_probe(struct pci_dev *dev,
+			     const struct pci_device_id *id)
+{
+	return comedi_pci_auto_config(dev, &pci1760_driver, id->driver_data);
+}
+
+static const struct pci_device_id pci1760_pci_table[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1760) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, pci1760_pci_table);
+
+static struct pci_driver pci1760_pci_driver = {
+	.name		= "adv_pci1760",
+	.id_table	= pci1760_pci_table,
+	.probe		= pci1760_pci_probe,
+	.remove		= comedi_pci_auto_unconfig,
+};
+module_comedi_pci_driver(pci1760_driver, pci1760_pci_driver);
+
+MODULE_AUTHOR("Comedi http://www.comedi.org");
+MODULE_DESCRIPTION("Comedi driver for Advantech PCI-1760");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index f1b3c5aa8d79..620cec13d74c 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -4,30 +4,21 @@
  * Author: Michal Dobes <dobes@tesnet.cz>
  *
  *  Hardware driver for Advantech PCI DIO cards.
-*/
-/*
-Driver: adv_pci_dio
-Description: Advantech PCI-1730, PCI-1733, PCI-1734, PCI-1735U,
-	PCI-1736UP, PCI-1739U, PCI-1750, PCI-1751, PCI-1752,
-	PCI-1753/E, PCI-1754, PCI-1756, PCI-1760, PCI-1762
-Author: Michal Dobes <dobes@tesnet.cz>
-Devices: [Advantech] PCI-1730 (adv_pci_dio), PCI-1733,
-  PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U, PCI-1750,
-  PCI-1751, PCI-1752, PCI-1753,
-  PCI-1753+PCI-1753E, PCI-1754, PCI-1756,
-  PCI-1760, PCI-1762
-Status: untested
-Updated: Mon, 09 Jan 2012 12:40:46 +0000
-
-This driver supports now only insn interface for DI/DO/DIO.
+ */
 
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-	If bus/slot is not specified, the first available PCI
-	device will be used.
-
-*/
+/*
+ * Driver: adv_pci_dio
+ * Description: Advantech Digital I/O Cards
+ * Devices: [Advantech] PCI-1730 (adv_pci_dio), PCI-1733,
+ *   PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U, PCI-1750,
+ *   PCI-1751, PCI-1752, PCI-1753, PCI-1753+PCI-1753E,
+ *   PCI-1754, PCI-1756, PCI-1762
+ * Author: Michal Dobes <dobes@tesnet.cz>
+ * Updated: Mon, 09 Jan 2012 12:40:46 +0000
+ * Status: untested
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ */
 
 #include <linux/module.h>
 #include <linux/delay.h>
@@ -37,403 +28,199 @@ Configuration options:
 #include "8255.h"
 #include "comedi_8254.h"
 
-/* hardware types of the cards */
-enum hw_cards_id {
-	TYPE_PCI1730, TYPE_PCI1733, TYPE_PCI1734, TYPE_PCI1735, TYPE_PCI1736,
-	TYPE_PCI1739,
-	TYPE_PCI1750,
-	TYPE_PCI1751,
-	TYPE_PCI1752,
-	TYPE_PCI1753, TYPE_PCI1753E,
-	TYPE_PCI1754, TYPE_PCI1756,
-	TYPE_PCI1760,
-	TYPE_PCI1762
-};
-
-/* which I/O instructions to use */
-enum hw_io_access {
-	IO_8b, IO_16b
-};
-
-#define MAX_DI_SUBDEVS	2	/* max number of DI subdevices per card */
-#define MAX_DO_SUBDEVS	2	/* max number of DO subdevices per card */
-#define MAX_DIO_SUBDEVG	2	/* max number of DIO subdevices group per
-				 * card */
-
-#define PCIDIO_MAINREG	   2	/* main I/O region for all Advantech cards? */
-
-/* Register offset definitions */
-/*  Advantech PCI-1730/3/4 */
-#define PCI1730_IDI	   0	/* R:   Isolated digital input  0-15 */
-#define PCI1730_IDO	   0	/* W:   Isolated digital output 0-15 */
-#define PCI1730_DI	   2	/* R:   Digital input  0-15 */
-#define PCI1730_DO	   2	/* W:   Digital output 0-15 */
-#define PCI1733_IDI	   0	/* R:   Isolated digital input  0-31 */
-#define	PCI1730_3_INT_EN	0x08	/* R/W: enable/disable interrupts */
-#define	PCI1730_3_INT_RF	0x0c	/* R/W: set falling/raising edge for
-					 * interrupts */
-#define	PCI1730_3_INT_CLR	0x10	/* R/W: clear interrupts */
-#define PCI1734_IDO	   0	/* W:   Isolated digital output 0-31 */
-#define PCI173x_BOARDID	   4	/* R:   Board I/D switch for 1730/3/4 */
-
-/* Advantech PCI-1735U */
-#define PCI1735_DI	   0	/* R:   Digital input  0-31 */
-#define PCI1735_DO	   0	/* W:   Digital output 0-31 */
-#define PCI1735_C8254	   4	/* R/W: 8254 counter */
-#define PCI1735_BOARDID	   8    /* R:   Board I/D switch for 1735U */
-
-/*  Advantech PCI-1736UP */
-#define PCI1736_IDI        0	/* R:   Isolated digital input  0-15 */
-#define PCI1736_IDO        0	/* W:   Isolated digital output 0-15 */
-#define PCI1736_3_INT_EN        0x08	/* R/W: enable/disable interrupts */
-#define PCI1736_3_INT_RF        0x0c	/* R/W: set falling/raising edge for
-					 * interrupts */
-#define PCI1736_3_INT_CLR       0x10	/* R/W: clear interrupts */
-#define PCI1736_BOARDID    4	/* R:   Board I/D switch for 1736UP */
-#define PCI1736_MAINREG    0	/* Normal register (2) doesn't work */
+/*
+ * Register offset definitions
+ */
 
-/* Advantech PCI-1739U */
-#define PCI1739_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1739_ICR	  32	/* W:   Interrupt control register */
-#define PCI1739_ISR	  32	/* R:   Interrupt status register */
-#define PCI1739_BOARDID	   8    /* R:   Board I/D switch for 1739U */
+/* PCI-1730, PCI-1733, PCI-1736 interrupt control registers */
+#define PCI173X_INT_EN_REG	0x08	/* R/W: enable/disable */
+#define PCI173X_INT_RF_REG	0x0c	/* R/W: falling/rising edge */
+#define PCI173X_INT_CLR_REG	0x10	/* R/W: clear */
 
-/*  Advantech PCI-1750 */
-#define PCI1750_IDI	   0	/* R:   Isolated digital input  0-15 */
-#define PCI1750_IDO	   0	/* W:   Isolated digital output 0-15 */
-#define PCI1750_ICR	  32	/* W:   Interrupt control register */
-#define PCI1750_ISR	  32	/* R:   Interrupt status register */
+/* PCI-1739U, PCI-1750, PCI1751 interrupt control registers */
+#define PCI1750_INT_REG		0x20	/* R/W: status/control */
 
-/*  Advantech PCI-1751/3/3E */
-#define PCI1751_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1751_CNT	  24	/* R/W: begin of 8254 registers block */
-#define PCI1751_ICR	  32	/* W:   Interrupt control register */
-#define PCI1751_ISR	  32	/* R:   Interrupt status register */
-#define PCI1753_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1753_ICR0	  16	/* R/W: Interrupt control register group 0 */
-#define PCI1753_ICR1	  17	/* R/W: Interrupt control register group 1 */
-#define PCI1753_ICR2	  18	/* R/W: Interrupt control register group 2 */
-#define PCI1753_ICR3	  19	/* R/W: Interrupt control register group 3 */
-#define PCI1753E_DIO	  32	/* R/W: begin of 8255 registers block */
-#define PCI1753E_ICR0	  48	/* R/W: Interrupt control register group 0 */
-#define PCI1753E_ICR1	  49	/* R/W: Interrupt control register group 1 */
-#define PCI1753E_ICR2	  50	/* R/W: Interrupt control register group 2 */
-#define PCI1753E_ICR3	  51	/* R/W: Interrupt control register group 3 */
+/* PCI-1753, PCI-1753E interrupt control registers */
+#define PCI1753_INT_REG(x)	(0x10 + (x)) /* R/W: control group 0 to 3 */
+#define PCI1753E_INT_REG(x)	(0x30 + (x)) /* R/W: control group 0 to 3 */
 
-/*  Advantech PCI-1752/4/6 */
-#define PCI1752_IDO	   0	/* R/W: Digital output  0-31 */
-#define PCI1752_IDO2	   4	/* R/W: Digital output 32-63 */
-#define PCI1754_IDI	   0	/* R:   Digital input   0-31 */
-#define PCI1754_IDI2	   4	/* R:   Digital input  32-64 */
-#define PCI1756_IDI	   0	/* R:   Digital input   0-31 */
-#define PCI1756_IDO	   4	/* R/W: Digital output  0-31 */
-#define PCI1754_6_ICR0	0x08	/* R/W: Interrupt control register group 0 */
-#define PCI1754_6_ICR1	0x0a	/* R/W: Interrupt control register group 1 */
-#define PCI1754_ICR2	0x0c	/* R/W: Interrupt control register group 2 */
-#define PCI1754_ICR3	0x0e	/* R/W: Interrupt control register group 3 */
-#define PCI1752_6_CFC	0x12	/* R/W: set/read channel freeze function */
-#define PCI175x_BOARDID	0x10	/* R:   Board I/D switch for 1752/4/6 */
+/* PCI-1754, PCI-1756 interrupt control registers */
+#define PCI1754_INT_REG(x)	(0x08 + (x) * 2) /* R/W: control group 0 to 3 */
 
-/*  Advantech PCI-1762 registers */
-#define PCI1762_RO	   0	/* R/W: Relays status/output */
-#define PCI1762_IDI	   2	/* R:   Isolated input status */
-#define PCI1762_BOARDID	   4	/* R:   Board I/D switch */
-#define PCI1762_ICR	   6	/* W:   Interrupt control register */
-#define PCI1762_ISR	   6	/* R:   Interrupt status register */
+/* PCI-1752, PCI-1756 special registers */
+#define PCI1752_CFC_REG		0x12	/* R/W: channel freeze function */
 
-/*  Advantech PCI-1760 registers */
-#define OMB0		0x0c	/* W:   Mailbox outgoing registers */
-#define OMB1		0x0d
-#define OMB2		0x0e
-#define OMB3		0x0f
-#define IMB0		0x1c	/* R:   Mailbox incoming registers */
-#define IMB1		0x1d
-#define IMB2		0x1e
-#define IMB3		0x1f
-#define INTCSR0		0x38	/* R/W: Interrupt control registers */
-#define INTCSR1		0x39
-#define INTCSR2		0x3a
-#define INTCSR3		0x3b
+/* PCI-1762 interrupt control registers */
+#define PCI1762_INT_REG		0x06	/* R/W: status/control */
 
-/*  PCI-1760 mailbox commands */
-#define CMD_ClearIMB2		0x00	/* Clear IMB2 status and return actual
-					 * DI status in IMB3 */
-#define CMD_SetRelaysOutput	0x01	/* Set relay output from OMB0 */
-#define CMD_GetRelaysStatus	0x02	/* Get relay status to IMB0 */
-#define CMD_ReadCurrentStatus	0x07	/* Read the current status of the
-					 * register in OMB0, result in IMB0 */
-#define CMD_ReadFirmwareVersion	0x0e	/* Read the firmware ver., result in
-					 * IMB1.IMB0 */
-#define CMD_ReadHardwareVersion	0x0f	/* Read the hardware ver., result in
-					 * IMB1.IMB0 */
-#define CMD_EnableIDIFilters	0x20	/* Enable IDI filters based on bits in
-					 * OMB0 */
-#define CMD_EnableIDIPatternMatch 0x21	/* Enable IDI pattern match based on
-					 * bits in OMB0 */
-#define CMD_SetIDIPatternMatch	0x22	/* Enable IDI pattern match based on
-					 * bits in OMB0 */
-#define CMD_EnableIDICounters	0x28	/* Enable IDI counters based on bits in
-					 * OMB0 */
-#define CMD_ResetIDICounters	0x29	/* Reset IDI counters based on bits in
-					 * OMB0 to its reset values */
-#define CMD_OverflowIDICounters	0x2a	/* Enable IDI counters overflow
-					 * interrupts  based on bits in OMB0 */
-#define CMD_MatchIntIDICounters	0x2b	/* Enable IDI counters match value
-					 * interrupts  based on bits in OMB0 */
-#define CMD_EdgeIDICounters	0x2c	/* Set IDI up counters count edge (bit=0
-					 * - rising, =1 - falling) */
-#define CMD_GetIDICntCurValue	0x2f	/* Read IDI{OMB0} up counter current
-					 * value */
-#define CMD_SetIDI0CntResetValue 0x40	/* Set IDI0 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntResetValue 0x41	/* Set IDI1 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntResetValue 0x42	/* Set IDI2 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntResetValue 0x43	/* Set IDI3 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntResetValue 0x44	/* Set IDI4 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntResetValue 0x45	/* Set IDI5 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntResetValue 0x46	/* Set IDI6 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntResetValue 0x47	/* Set IDI7 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI0CntMatchValue 0x48	/* Set IDI0 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntMatchValue 0x49	/* Set IDI1 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntMatchValue 0x4a	/* Set IDI2 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntMatchValue 0x4b	/* Set IDI3 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntMatchValue 0x4c	/* Set IDI4 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntMatchValue 0x4d	/* Set IDI5 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntMatchValue 0x4e	/* Set IDI6 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntMatchValue 0x4f	/* Set IDI7 Counter Match Value
-					 * 256*OMB1+OMB0 */
+/* maximum number of subdevice descriptions in the boardinfo */
+#define PCI_DIO_MAX_DI_SUBDEVS	2	/* 2 x 8/16/32 input channels max */
+#define PCI_DIO_MAX_DO_SUBDEVS	2	/* 2 x 8/16/32 output channels max */
+#define PCI_DIO_MAX_DIO_SUBDEVG	2	/* 2 x any number of 8255 devices max */
 
-#define OMBCMD_RETRY	0x03	/* 3 times try request before error */
+enum pci_dio_boardid {
+	TYPE_PCI1730,
+	TYPE_PCI1733,
+	TYPE_PCI1734,
+	TYPE_PCI1735,
+	TYPE_PCI1736,
+	TYPE_PCI1739,
+	TYPE_PCI1750,
+	TYPE_PCI1751,
+	TYPE_PCI1752,
+	TYPE_PCI1753,
+	TYPE_PCI1753E,
+	TYPE_PCI1754,
+	TYPE_PCI1756,
+	TYPE_PCI1762
+};
 
 struct diosubd_data {
-	int chans;		/*  num of chans */
-	int addr;		/*  PCI address ofset */
-	int regs;		/*  number of registers to read or 8255
-				    subdevices */
-	unsigned int specflags;	/*  addon subdevice flags */
+	int chans;		/*  num of chans or 8255 devices */
+	unsigned long addr;	/*  PCI address ofset */
 };
 
 struct dio_boardtype {
 	const char *name;	/*  board name */
-	int main_pci_region;	/*  main I/O PCI region */
-	enum hw_cards_id cardtype;
 	int nsubdevs;
-	struct diosubd_data sdi[MAX_DI_SUBDEVS];	/*  DI chans */
-	struct diosubd_data sdo[MAX_DO_SUBDEVS];	/*  DO chans */
-	struct diosubd_data sdio[MAX_DIO_SUBDEVG];	/*  DIO 8255 chans */
-	struct diosubd_data boardid;	/*  card supports board ID switch */
+	struct diosubd_data sdi[PCI_DIO_MAX_DI_SUBDEVS];
+	struct diosubd_data sdo[PCI_DIO_MAX_DO_SUBDEVS];
+	struct diosubd_data sdio[PCI_DIO_MAX_DIO_SUBDEVG];
+	unsigned long id_reg;
 	unsigned long timer_regbase;
-	enum hw_io_access io_access;
+	unsigned int is_16bit:1;
 };
 
 static const struct dio_boardtype boardtypes[] = {
 	[TYPE_PCI1730] = {
 		.name		= "pci1730",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1730,
 		.nsubdevs	= 5,
-		.sdi[0]		= { 16, PCI1730_DI, 2, 0, },
-		.sdi[1]		= { 16, PCI1730_IDI, 2, 0, },
-		.sdo[0]		= { 16, PCI1730_DO, 2, 0, },
-		.sdo[1]		= { 16, PCI1730_IDO, 2, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
+		.sdi[0]		= { 16, 0x02, },	/* DI 0-15 */
+		.sdi[1]		= { 16, 0x00, },	/* ISO DI 0-15 */
+		.sdo[0]		= { 16, 0x02, },	/* DO 0-15 */
+		.sdo[1]		= { 16, 0x00, },	/* ISO DO 0-15 */
+		.id_reg		= 0x04,
 	},
 	[TYPE_PCI1733] = {
 		.name		= "pci1733",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1733,
 		.nsubdevs	= 2,
-		.sdi[1]		= { 32, PCI1733_IDI, 4, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
+		.sdi[1]		= { 32, 0x00, },	/* ISO DI 0-31 */
+		.id_reg		= 0x04,
 	},
 	[TYPE_PCI1734] = {
 		.name		= "pci1734",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1734,
 		.nsubdevs	= 2,
-		.sdo[1]		= { 32, PCI1734_IDO, 4, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
+		.sdo[1]		= { 32, 0x00, },	/* ISO DO 0-31 */
+		.id_reg		= 0x04,
 	},
 	[TYPE_PCI1735] = {
 		.name		= "pci1735",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1735,
 		.nsubdevs	= 4,
-		.sdi[0]		= { 32, PCI1735_DI, 4, 0, },
-		.sdo[0]		= { 32, PCI1735_DO, 4, 0, },
-		.boardid	= { 4, PCI1735_BOARDID, 1, SDF_INTERNAL, },
-		.timer_regbase	= PCI1735_C8254,
-		.io_access	= IO_8b,
+		.sdi[0]		= { 32, 0x00, },	/* DI 0-31 */
+		.sdo[0]		= { 32, 0x00, },	/* DO 0-31 */
+		.id_reg		= 0x08,
+		.timer_regbase	= 0x04,
 	},
 	[TYPE_PCI1736] = {
 		.name		= "pci1736",
-		.main_pci_region = PCI1736_MAINREG,
-		.cardtype	= TYPE_PCI1736,
 		.nsubdevs	= 3,
-		.sdi[1]		= { 16, PCI1736_IDI, 2, 0, },
-		.sdo[1]		= { 16, PCI1736_IDO, 2, 0, },
-		.boardid	= { 4, PCI1736_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
+		.sdi[1]		= { 16, 0x00, },	/* ISO DI 0-15 */
+		.sdo[1]		= { 16, 0x00, },	/* ISO DO 0-15 */
+		.id_reg		= 0x04,
 	},
 	[TYPE_PCI1739] = {
 		.name		= "pci1739",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1739,
-		.nsubdevs	= 2,
-		.sdio[0]	= { 48, PCI1739_DIO, 2, 0, },
-		.io_access	= IO_8b,
+		.nsubdevs	= 3,
+		.sdio[0]	= { 2, 0x00, },		/* 8255 DIO */
+		.id_reg		= 0x08,
 	},
 	[TYPE_PCI1750] = {
 		.name		= "pci1750",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1750,
 		.nsubdevs	= 2,
-		.sdi[1]		= { 16, PCI1750_IDI, 2, 0, },
-		.sdo[1]		= { 16, PCI1750_IDO, 2, 0, },
-		.io_access	= IO_8b,
+		.sdi[1]		= { 16, 0x00, },	/* ISO DI 0-15 */
+		.sdo[1]		= { 16, 0x00, },	/* ISO DO 0-15 */
 	},
 	[TYPE_PCI1751] = {
 		.name		= "pci1751",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1751,
 		.nsubdevs	= 3,
-		.sdio[0]	= { 48, PCI1751_DIO, 2, 0, },
-		.timer_regbase	= PCI1751_CNT,
-		.io_access	= IO_8b,
+		.sdio[0]	= { 2, 0x00, },		/* 8255 DIO */
+		.timer_regbase	= 0x18,
 	},
 	[TYPE_PCI1752] = {
 		.name		= "pci1752",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1752,
 		.nsubdevs	= 3,
-		.sdo[0]		= { 32, PCI1752_IDO, 2, 0, },
-		.sdo[1]		= { 32, PCI1752_IDO2, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
+		.sdo[0]		= { 32, 0x00, },	/* DO 0-31 */
+		.sdo[1]		= { 32, 0x04, },	/* DO 32-63 */
+		.id_reg		= 0x10,
+		.is_16bit	= 1,
 	},
 	[TYPE_PCI1753] = {
 		.name		= "pci1753",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1753,
 		.nsubdevs	= 4,
-		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
-		.io_access	= IO_8b,
+		.sdio[0]	= { 4, 0x00, },		/* 8255 DIO */
 	},
 	[TYPE_PCI1753E] = {
 		.name		= "pci1753e",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1753E,
 		.nsubdevs	= 8,
-		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
-		.sdio[1]	= { 96, PCI1753E_DIO, 4, 0, },
-		.io_access	= IO_8b,
+		.sdio[0]	= { 4, 0x00, },		/* 8255 DIO */
+		.sdio[1]	= { 4, 0x20, },		/* 8255 DIO */
 	},
 	[TYPE_PCI1754] = {
 		.name		= "pci1754",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1754,
 		.nsubdevs	= 3,
-		.sdi[0]		= { 32, PCI1754_IDI, 2, 0, },
-		.sdi[1]		= { 32, PCI1754_IDI2, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
+		.sdi[0]		= { 32, 0x00, },	/* DI 0-31 */
+		.sdi[1]		= { 32, 0x04, },	/* DI 32-63 */
+		.id_reg		= 0x10,
+		.is_16bit	= 1,
 	},
 	[TYPE_PCI1756] = {
 		.name		= "pci1756",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1756,
 		.nsubdevs	= 3,
-		.sdi[1]		= { 32, PCI1756_IDI, 2, 0, },
-		.sdo[1]		= { 32, PCI1756_IDO, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
-	},
-	[TYPE_PCI1760] = {
-		/* This card has its own 'attach' */
-		.name		= "pci1760",
-		.main_pci_region = 0,
-		.cardtype	= TYPE_PCI1760,
-		.nsubdevs	= 4,
-		.io_access	= IO_8b,
+		.sdi[1]		= { 32, 0x00, },	/* DI 0-31 */
+		.sdo[1]		= { 32, 0x04, },	/* DO 0-31 */
+		.id_reg		= 0x10,
+		.is_16bit	= 1,
 	},
 	[TYPE_PCI1762] = {
 		.name		= "pci1762",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1762,
 		.nsubdevs	= 3,
-		.sdi[1]		= { 16, PCI1762_IDI, 1, 0, },
-		.sdo[1]		= { 16, PCI1762_RO, 1, 0, },
-		.boardid	= { 4, PCI1762_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
+		.sdi[1]		= { 16, 0x02, },	/* ISO DI 0-15 */
+		.sdo[1]		= { 16, 0x00, },	/* ISO DO 0-15 */
+		.id_reg		= 0x04,
+		.is_16bit	= 1,
 	},
 };
 
-struct pci_dio_private {
-	char GlobalIrqEnabled;	/*  1= any IRQ source is enabled */
-	/*  PCI-1760 specific data */
-	unsigned char IDICntEnable;	/* counter's counting enable status */
-	unsigned char IDICntOverEnable;	/* counter's overflow interrupts enable
-					 * status */
-	unsigned char IDICntMatchEnable;	/* counter's match interrupts
-						 * enable status */
-	unsigned char IDICntEdge;	/* counter's count edge value
-					 * (bit=0 - rising, =1 - falling) */
-	unsigned short CntResValue[8];	/*  counters' reset value */
-	unsigned short CntMatchValue[8]; /*  counters' match interrupt value */
-	unsigned char IDIFiltersEn; /*  IDI's digital filters enable status */
-	unsigned char IDIPatMatchEn;	/*  IDI's pattern match enable status */
-	unsigned char IDIPatMatchValue;	/*  IDI's pattern match value */
-	unsigned short IDIFiltrLow[8];	/*  IDI's filter value low signal */
-	unsigned short IDIFiltrHigh[8];	/*  IDI's filter value high signal */
-};
-
-/*
-==============================================================================
-*/
 static int pci_dio_insn_bits_di_b(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
+	unsigned long reg = (unsigned long)s->private;
+	unsigned long iobase = dev->iobase + reg;
 
-	data[1] = 0;
-	for (i = 0; i < d->regs; i++)
-		data[1] |= inb(dev->iobase + d->addr + i) << (8 * i);
+	data[1] = inb(iobase);
+	if (s->n_chan > 8)
+		data[1] |= (inb(iobase + 1) << 8);
+	if (s->n_chan > 16)
+		data[1] |= (inb(iobase + 2) << 16);
+	if (s->n_chan > 24)
+		data[1] |= (inb(iobase + 3) << 24);
 
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci_dio_insn_bits_di_w(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
+	unsigned long reg = (unsigned long)s->private;
+	unsigned long iobase = dev->iobase + reg;
 
-	data[1] = 0;
-	for (i = 0; i < d->regs; i++)
-		data[1] |= inw(dev->iobase + d->addr + 2 * i) << (16 * i);
+	data[1] = inw(iobase);
+	if (s->n_chan > 16)
+		data[1] |= (inw(iobase + 2) << 16);
 
 	return insn->n;
 }
@@ -443,13 +230,17 @@ static int pci_dio_insn_bits_do_b(struct comedi_device *dev,
 				  struct comedi_insn *insn,
 				  unsigned int *data)
 {
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
+	unsigned long reg = (unsigned long)s->private;
+	unsigned long iobase = dev->iobase + reg;
 
 	if (comedi_dio_update_state(s, data)) {
-		for (i = 0; i < d->regs; i++)
-			outb((s->state >> (8 * i)) & 0xff,
-			     dev->iobase + d->addr + i);
+		outb(s->state & 0xff, iobase);
+		if (s->n_chan > 8)
+			outb((s->state >> 8) & 0xff, iobase + 1);
+		if (s->n_chan > 16)
+			outb((s->state >> 16) & 0xff, iobase + 2);
+		if (s->n_chan > 24)
+			outb((s->state >> 24) & 0xff, iobase + 3);
 	}
 
 	data[1] = s->state;
@@ -462,13 +253,13 @@ static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
 				  struct comedi_insn *insn,
 				  unsigned int *data)
 {
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
+	unsigned long reg = (unsigned long)s->private;
+	unsigned long iobase = dev->iobase + reg;
 
 	if (comedi_dio_update_state(s, data)) {
-		for (i = 0; i < d->regs; i++)
-			outw((s->state >> (16 * i)) & 0xffff,
-			     dev->iobase + d->addr + 2 * i);
+		outw(s->state & 0xffff, iobase);
+		if (s->n_chan > 16)
+			outw((s->state >> 16) & 0xffff, iobase + 2);
 	}
 
 	data[1] = s->state;
@@ -476,510 +267,64 @@ static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
-static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
-					unsigned char *omb, unsigned char *imb,
-					int repeats)
-{
-	int cnt, tout, ok = 0;
-
-	for (cnt = 0; cnt < repeats; cnt++) {
-		outb(omb[0], dev->iobase + OMB0);
-		outb(omb[1], dev->iobase + OMB1);
-		outb(omb[2], dev->iobase + OMB2);
-		outb(omb[3], dev->iobase + OMB3);
-		for (tout = 0; tout < 251; tout++) {
-			imb[2] = inb(dev->iobase + IMB2);
-			if (imb[2] == omb[2]) {
-				imb[0] = inb(dev->iobase + IMB0);
-				imb[1] = inb(dev->iobase + IMB1);
-				imb[3] = inb(dev->iobase + IMB3);
-				ok = 1;
-				break;
-			}
-			udelay(1);
-		}
-		if (ok)
-			return 0;
-	}
-
-	dev_err(dev->class_dev, "PCI-1760 mailbox request timeout!\n");
-	return -ETIME;
-}
-
-static int pci1760_clear_imb2(struct comedi_device *dev)
-{
-	unsigned char omb[4] = { 0x0, 0x0, CMD_ClearIMB2, 0x0 };
-	unsigned char imb[4];
-	/* check if imb2 is already clear */
-	if (inb(dev->iobase + IMB2) == CMD_ClearIMB2)
-		return 0;
-	return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-static int pci1760_mbxrequest(struct comedi_device *dev,
-			      unsigned char *omb, unsigned char *imb)
-{
-	if (omb[2] == CMD_ClearIMB2) {
-		dev_err(dev->class_dev,
-			"bug! this function should not be used for CMD_ClearIMB2 command\n");
-		return -EINVAL;
-	}
-	if (inb(dev->iobase + IMB2) == omb[2]) {
-		int retval;
-
-		retval = pci1760_clear_imb2(dev);
-		if (retval < 0)
-			return retval;
-	}
-	return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_bits_di(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+static int pci_dio_reset(struct comedi_device *dev, unsigned long cardtype)
 {
-	data[1] = inb(dev->iobase + IMB3);
+	/* disable channel freeze function on the PCI-1752/1756 boards */
+	if (cardtype == TYPE_PCI1752 || cardtype == TYPE_PCI1756)
+		outw(0, dev->iobase + PCI1752_CFC_REG);
 
-	return insn->n;
-}
-
-static int pci1760_insn_bits_do(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int ret;
-	unsigned char omb[4] = {
-		0x00,
-		0x00,
-		CMD_SetRelaysOutput,
-		0x00
-	};
-	unsigned char imb[4];
-
-	if (comedi_dio_update_state(s, data)) {
-		omb[0] = s->state;
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	int ret, n;
-	unsigned char omb[4] = {
-		CR_CHAN(insn->chanspec) & 0x07,
-		0x00,
-		CMD_GetIDICntCurValue,
-		0x00
-	};
-	unsigned char imb[4];
-
-	for (n = 0; n < insn->n; n++) {
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		data[n] = (imb[1] << 8) + imb[0];
-	}
-
-	return n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
-{
-	struct pci_dio_private *devpriv = dev->private;
-	int ret;
-	unsigned char chan = CR_CHAN(insn->chanspec) & 0x07;
-	unsigned char bitmask = 1 << chan;
-	unsigned char omb[4] = {
-		data[0] & 0xff,
-		(data[0] >> 8) & 0xff,
-		CMD_SetIDI0CntResetValue + chan,
-		0x00
-	};
-	unsigned char imb[4];
-
-	/* Set reset value if different */
-	if (devpriv->CntResValue[chan] != (data[0] & 0xffff)) {
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		devpriv->CntResValue[chan] = data[0] & 0xffff;
-	}
-
-	omb[0] = bitmask;	/*  reset counter to it reset value */
-	omb[2] = CMD_ResetIDICounters;
-	ret = pci1760_mbxrequest(dev, omb, imb);
-	if (!ret)
-		return ret;
-
-	/*  start counter if it don't run */
-	if (!(bitmask & devpriv->IDICntEnable)) {
-		omb[0] = bitmask;
-		omb[2] = CMD_EnableIDICounters;
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		devpriv->IDICntEnable |= bitmask;
-	}
-	return 1;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_reset(struct comedi_device *dev)
-{
-	struct pci_dio_private *devpriv = dev->private;
-	int i;
-	unsigned char omb[4] = { 0x00, 0x00, 0x00, 0x00 };
-	unsigned char imb[4];
-
-	outb(0, dev->iobase + INTCSR0);	/*  disable IRQ */
-	outb(0, dev->iobase + INTCSR1);
-	outb(0, dev->iobase + INTCSR2);
-	outb(0, dev->iobase + INTCSR3);
-	devpriv->GlobalIrqEnabled = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_SetRelaysOutput;	/*  reset relay outputs */
-	pci1760_mbxrequest(dev, omb, imb);
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDICounters;	/*  disable IDI up counters */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntEnable = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_OverflowIDICounters; /* disable counters overflow
-					   * interrupts */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntOverEnable = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_MatchIntIDICounters; /* disable counters match value
-					   * interrupts */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntMatchEnable = 0;
-
-	omb[0] = 0x00;
-	omb[1] = 0x80;
-	for (i = 0; i < 8; i++) {	/*  set IDI up counters match value */
-		omb[2] = CMD_SetIDI0CntMatchValue + i;
-		pci1760_mbxrequest(dev, omb, imb);
-		devpriv->CntMatchValue[i] = 0x8000;
-	}
-
-	omb[0] = 0x00;
-	omb[1] = 0x00;
-	for (i = 0; i < 8; i++) {	/*  set IDI up counters reset value */
-		omb[2] = CMD_SetIDI0CntResetValue + i;
-		pci1760_mbxrequest(dev, omb, imb);
-		devpriv->CntResValue[i] = 0x0000;
-	}
-
-	omb[0] = 0xff;
-	omb[2] = CMD_ResetIDICounters; /* reset IDI up counters to reset
-					* values */
-	pci1760_mbxrequest(dev, omb, imb);
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EdgeIDICounters;	/*  set IDI up counters count edge */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntEdge = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDIFilters;	/*  disable all digital in filters */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIFiltersEn = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDIPatternMatch;	/*  disable pattern matching */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIPatMatchEn = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_SetIDIPatternMatch;	/*  set pattern match value */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIPatMatchValue = 0x00;
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_reset(struct comedi_device *dev)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	switch (board->cardtype) {
+	/* disable and clear interrupts */
+	switch (cardtype) {
 	case TYPE_PCI1730:
-		outb(0, dev->iobase + PCI1730_DO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1730_DO + 1);
-		outb(0, dev->iobase + PCI1730_IDO);
-		outb(0, dev->iobase + PCI1730_IDO + 1);
-		/* fallthrough */
 	case TYPE_PCI1733:
-		/* disable interrupts */
-		outb(0, dev->iobase + PCI1730_3_INT_EN);
-		/* clear interrupts */
-		outb(0x0f, dev->iobase + PCI1730_3_INT_CLR);
-		/* set rising edge trigger */
-		outb(0, dev->iobase + PCI1730_3_INT_RF);
-		break;
-	case TYPE_PCI1734:
-		outb(0, dev->iobase + PCI1734_IDO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1734_IDO + 1);
-		outb(0, dev->iobase + PCI1734_IDO + 2);
-		outb(0, dev->iobase + PCI1734_IDO + 3);
-		break;
-	case TYPE_PCI1735:
-		outb(0, dev->iobase + PCI1735_DO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1735_DO + 1);
-		outb(0, dev->iobase + PCI1735_DO + 2);
-		outb(0, dev->iobase + PCI1735_DO + 3);
-		break;
-
 	case TYPE_PCI1736:
-		outb(0, dev->iobase + PCI1736_IDO);
-		outb(0, dev->iobase + PCI1736_IDO + 1);
-		/* disable interrupts */
-		outb(0, dev->iobase + PCI1736_3_INT_EN);
-		/* clear interrupts */
-		outb(0x0f, dev->iobase + PCI1736_3_INT_CLR);
-		/* set rising edge trigger */
-		outb(0, dev->iobase + PCI1736_3_INT_RF);
+		outb(0, dev->iobase + PCI173X_INT_EN_REG);
+		outb(0x0f, dev->iobase + PCI173X_INT_CLR_REG);
+		outb(0, dev->iobase + PCI173X_INT_RF_REG);
 		break;
-
 	case TYPE_PCI1739:
-		/* disable & clear interrupts */
-		outb(0x88, dev->iobase + PCI1739_ICR);
-		break;
-
 	case TYPE_PCI1750:
 	case TYPE_PCI1751:
-		/* disable & clear interrupts */
-		outb(0x88, dev->iobase + PCI1750_ICR);
-		break;
-	case TYPE_PCI1752:
-		outw(0, dev->iobase + PCI1752_6_CFC); /* disable channel freeze
-						       * function */
-		outw(0, dev->iobase + PCI1752_IDO);	/*  clear outputs */
-		outw(0, dev->iobase + PCI1752_IDO + 2);
-		outw(0, dev->iobase + PCI1752_IDO2);
-		outw(0, dev->iobase + PCI1752_IDO2 + 2);
+		outb(0x88, dev->iobase + PCI1750_INT_REG);
 		break;
-	case TYPE_PCI1753E:
-		outb(0x88, dev->iobase + PCI1753E_ICR0); /* disable & clear
-							  * interrupts */
-		outb(0x80, dev->iobase + PCI1753E_ICR1);
-		outb(0x80, dev->iobase + PCI1753E_ICR2);
-		outb(0x80, dev->iobase + PCI1753E_ICR3);
-		/* fallthrough */
 	case TYPE_PCI1753:
-		outb(0x88, dev->iobase + PCI1753_ICR0); /* disable & clear
-							 * interrupts */
-		outb(0x80, dev->iobase + PCI1753_ICR1);
-		outb(0x80, dev->iobase + PCI1753_ICR2);
-		outb(0x80, dev->iobase + PCI1753_ICR3);
+	case TYPE_PCI1753E:
+		outb(0x88, dev->iobase + PCI1753_INT_REG(0));
+		outb(0x80, dev->iobase + PCI1753_INT_REG(1));
+		outb(0x80, dev->iobase + PCI1753_INT_REG(2));
+		outb(0x80, dev->iobase + PCI1753_INT_REG(3));
+		if (cardtype == TYPE_PCI1753E) {
+			outb(0x88, dev->iobase + PCI1753E_INT_REG(0));
+			outb(0x80, dev->iobase + PCI1753E_INT_REG(1));
+			outb(0x80, dev->iobase + PCI1753E_INT_REG(2));
+			outb(0x80, dev->iobase + PCI1753E_INT_REG(3));
+		}
 		break;
 	case TYPE_PCI1754:
-		outw(0x08, dev->iobase + PCI1754_6_ICR0); /* disable and clear
-							   * interrupts */
-		outw(0x08, dev->iobase + PCI1754_6_ICR1);
-		outw(0x08, dev->iobase + PCI1754_ICR2);
-		outw(0x08, dev->iobase + PCI1754_ICR3);
-		break;
 	case TYPE_PCI1756:
-		outw(0, dev->iobase + PCI1752_6_CFC); /* disable channel freeze
-						       * function */
-		outw(0x08, dev->iobase + PCI1754_6_ICR0); /* disable and clear
-							   * interrupts */
-		outw(0x08, dev->iobase + PCI1754_6_ICR1);
-		outw(0, dev->iobase + PCI1756_IDO);	/*  clear outputs */
-		outw(0, dev->iobase + PCI1756_IDO + 2);
-		break;
-	case TYPE_PCI1760:
-		pci1760_reset(dev);
+		outw(0x08, dev->iobase + PCI1754_INT_REG(0));
+		outw(0x08, dev->iobase + PCI1754_INT_REG(1));
+		if (cardtype == TYPE_PCI1754) {
+			outw(0x08, dev->iobase + PCI1754_INT_REG(2));
+			outw(0x08, dev->iobase + PCI1754_INT_REG(3));
+		}
 		break;
 	case TYPE_PCI1762:
-		outw(0x0101, dev->iobase + PCI1762_ICR); /* disable & clear
-							  * interrupts */
-		break;
-	}
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_attach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->len_chanlist = 8;
-	s->range_table = &range_digital;
-	s->insn_bits = pci1760_insn_bits_di;
-
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->len_chanlist = 8;
-	s->range_table = &range_digital;
-	s->state = 0;
-	s->insn_bits = pci1760_insn_bits_do;
-
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_TIMER;
-	s->subdev_flags = SDF_WRITABLE | SDF_LSAMPL;
-	s->n_chan = 2;
-	s->maxdata = 0xffffffff;
-	s->len_chanlist = 2;
-/*       s->insn_config=pci1760_insn_pwm_cfg; */
-
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 0xffff;
-	s->len_chanlist = 8;
-	s->insn_read = pci1760_insn_cnt_read;
-	s->insn_write = pci1760_insn_cnt_write;
-/*       s->insn_config=pci1760_insn_cnt_cfg; */
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_add_di(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  const struct diosubd_data *d)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | d->specflags;
-	if (d->chans > 16)
-		s->subdev_flags |= SDF_LSAMPL;
-	s->n_chan = d->chans;
-	s->maxdata = 1;
-	s->len_chanlist = d->chans;
-	s->range_table = &range_digital;
-	switch (board->io_access) {
-	case IO_8b:
-		s->insn_bits = pci_dio_insn_bits_di_b;
-		break;
-	case IO_16b:
-		s->insn_bits = pci_dio_insn_bits_di_w;
-		break;
-	}
-	s->private = (void *)d;
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_add_do(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  const struct diosubd_data *d)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	if (d->chans > 16)
-		s->subdev_flags |= SDF_LSAMPL;
-	s->n_chan = d->chans;
-	s->maxdata = 1;
-	s->len_chanlist = d->chans;
-	s->range_table = &range_digital;
-	s->state = 0;
-	switch (board->io_access) {
-	case IO_8b:
-		s->insn_bits = pci_dio_insn_bits_do_b;
+		outw(0x0101, dev->iobase + PCI1762_INT_REG);
 		break;
-	case IO_16b:
-		s->insn_bits = pci_dio_insn_bits_do_w;
+	default:
 		break;
 	}
-	s->private = (void *)d;
 
 	return 0;
 }
 
-static unsigned long pci_dio_override_cardtype(struct pci_dev *pcidev,
-					       unsigned long cardtype)
-{
-	/*
-	 * Change cardtype from TYPE_PCI1753 to TYPE_PCI1753E if expansion
-	 * board available.  Need to enable PCI device and request the main
-	 * registers PCI BAR temporarily to perform the test.
-	 */
-	if (cardtype != TYPE_PCI1753)
-		return cardtype;
-	if (pci_enable_device(pcidev) < 0)
-		return cardtype;
-	if (pci_request_region(pcidev, PCIDIO_MAINREG, "adv_pci_dio") == 0) {
-		/*
-		 * This test is based on Advantech's "advdaq" driver source
-		 * (which declares its module licence as "GPL" although the
-		 * driver source does not include a "COPYING" file).
-		 */
-		unsigned long reg =
-			pci_resource_start(pcidev, PCIDIO_MAINREG) + 53;
-
-		outb(0x05, reg);
-		if ((inb(reg) & 0x07) == 0x02) {
-			outb(0x02, reg);
-			if ((inb(reg) & 0x07) == 0x05)
-				cardtype = TYPE_PCI1753E;
-		}
-		pci_release_region(pcidev, PCIDIO_MAINREG);
-	}
-	pci_disable_device(pcidev);
-	return cardtype;
-}
-
 static int pci_dio_auto_attach(struct comedi_device *dev,
 			       unsigned long context)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct dio_boardtype *board = NULL;
-	struct pci_dio_private *devpriv;
+	const struct diosubd_data *d;
 	struct comedi_subdevice *s;
 	int ret, subdev, i, j;
 
@@ -990,54 +335,93 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
-	dev->iobase = pci_resource_start(pcidev, board->main_pci_region);
+	if (context == TYPE_PCI1736)
+		dev->iobase = pci_resource_start(pcidev, 0);
+	else
+		dev->iobase = pci_resource_start(pcidev, 2);
+
+	pci_dio_reset(dev, context);
 
 	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
 	if (ret)
 		return ret;
 
 	subdev = 0;
-	for (i = 0; i < MAX_DI_SUBDEVS; i++)
-		if (board->sdi[i].chans) {
-			s = &dev->subdevices[subdev];
-			pci_dio_add_di(dev, s, &board->sdi[i]);
-			subdev++;
+	for (i = 0; i < PCI_DIO_MAX_DI_SUBDEVS; i++) {
+		d = &board->sdi[i];
+		if (d->chans) {
+			s = &dev->subdevices[subdev++];
+			s->type		= COMEDI_SUBD_DI;
+			s->subdev_flags	= SDF_READABLE;
+			s->n_chan	= d->chans;
+			s->maxdata	= 1;
+			s->range_table	= &range_digital;
+			s->insn_bits	= board->is_16bit
+						? pci_dio_insn_bits_di_w
+						: pci_dio_insn_bits_di_b;
+			s->private	= (void *)d->addr;
 		}
+	}
 
-	for (i = 0; i < MAX_DO_SUBDEVS; i++)
-		if (board->sdo[i].chans) {
-			s = &dev->subdevices[subdev];
-			pci_dio_add_do(dev, s, &board->sdo[i]);
-			subdev++;
+	for (i = 0; i < PCI_DIO_MAX_DO_SUBDEVS; i++) {
+		d = &board->sdo[i];
+		if (d->chans) {
+			s = &dev->subdevices[subdev++];
+			s->type		= COMEDI_SUBD_DO;
+			s->subdev_flags	= SDF_WRITABLE;
+			s->n_chan	= d->chans;
+			s->maxdata	= 1;
+			s->range_table	= &range_digital;
+			s->insn_bits	= board->is_16bit
+						? pci_dio_insn_bits_do_w
+						: pci_dio_insn_bits_do_b;
+			s->private	= (void *)d->addr;
+
+			/* reset all outputs to 0 */
+			if (board->is_16bit) {
+				outw(0, dev->iobase + d->addr);
+				if (s->n_chan > 16)
+					outw(0, dev->iobase + d->addr + 2);
+			} else {
+				outb(0, dev->iobase + d->addr);
+				if (s->n_chan > 8)
+					outb(0, dev->iobase + d->addr + 1);
+				if (s->n_chan > 16)
+					outb(0, dev->iobase + d->addr + 2);
+				if (s->n_chan > 24)
+					outb(0, dev->iobase + d->addr + 3);
+			}
 		}
+	}
 
-	for (i = 0; i < MAX_DIO_SUBDEVG; i++)
-		for (j = 0; j < board->sdio[i].regs; j++) {
-			s = &dev->subdevices[subdev];
+	for (i = 0; i < PCI_DIO_MAX_DIO_SUBDEVG; i++) {
+		d = &board->sdio[i];
+		for (j = 0; j < d->chans; j++) {
+			s = &dev->subdevices[subdev++];
 			ret = subdev_8255_init(dev, s, NULL,
-					       board->sdio[i].addr +
-					       j * I8255_SIZE);
+					       d->addr + j * I8255_SIZE);
 			if (ret)
 				return ret;
-			subdev++;
 		}
+	}
 
-	if (board->boardid.chans) {
-		s = &dev->subdevices[subdev];
-		s->type = COMEDI_SUBD_DI;
-		pci_dio_add_di(dev, s, &board->boardid);
-		subdev++;
+	if (board->id_reg) {
+		s = &dev->subdevices[subdev++];
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE | SDF_INTERNAL;
+		s->n_chan	= 4;
+		s->maxdata	= 1;
+		s->range_table	= &range_digital;
+		s->insn_bits	= board->is_16bit ? pci_dio_insn_bits_di_w
+						  : pci_dio_insn_bits_di_b;
+		s->private	= (void *)board->id_reg;
 	}
 
 	if (board->timer_regbase) {
-		s = &dev->subdevices[subdev];
+		s = &dev->subdevices[subdev++];
 
 		dev->pacer = comedi_8254_init(dev->iobase +
 					      board->timer_regbase,
@@ -1046,32 +430,50 @@ static int pci_dio_auto_attach(struct comedi_device *dev,
 			return -ENOMEM;
 
 		comedi_8254_subdevice_init(s, dev->pacer);
-
-		subdev++;
 	}
 
-	if (board->cardtype == TYPE_PCI1760)
-		pci1760_attach(dev);
-
-	pci_dio_reset(dev);
-
 	return 0;
 }
 
-static void pci_dio_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		pci_dio_reset(dev);
-	comedi_pci_detach(dev);
-}
-
 static struct comedi_driver adv_pci_dio_driver = {
 	.driver_name	= "adv_pci_dio",
 	.module		= THIS_MODULE,
 	.auto_attach	= pci_dio_auto_attach,
-	.detach		= pci_dio_detach,
+	.detach		= comedi_pci_detach,
 };
 
+static unsigned long pci_dio_override_cardtype(struct pci_dev *pcidev,
+					       unsigned long cardtype)
+{
+	/*
+	 * Change cardtype from TYPE_PCI1753 to TYPE_PCI1753E if expansion
+	 * board available.  Need to enable PCI device and request the main
+	 * registers PCI BAR temporarily to perform the test.
+	 */
+	if (cardtype != TYPE_PCI1753)
+		return cardtype;
+	if (pci_enable_device(pcidev) < 0)
+		return cardtype;
+	if (pci_request_region(pcidev, 2, "adv_pci_dio") == 0) {
+		/*
+		 * This test is based on Advantech's "advdaq" driver source
+		 * (which declares its module licence as "GPL" although the
+		 * driver source does not include a "COPYING" file).
+		 */
+		unsigned long reg = pci_resource_start(pcidev, 2) + 53;
+
+		outb(0x05, reg);
+		if ((inb(reg) & 0x07) == 0x02) {
+			outb(0x02, reg);
+			if ((inb(reg) & 0x07) == 0x05)
+				cardtype = TYPE_PCI1753E;
+		}
+		pci_release_region(pcidev, 2);
+	}
+	pci_disable_device(pcidev);
+	return cardtype;
+}
+
 static int adv_pci_dio_pci_probe(struct pci_dev *dev,
 				 const struct pci_device_id *id)
 {
@@ -1094,7 +496,6 @@ static const struct pci_device_id adv_pci_dio_pci_table[] = {
 	{ PCI_VDEVICE(ADVANTECH, 0x1753), TYPE_PCI1753 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1754), TYPE_PCI1754 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1756), TYPE_PCI1756 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1760), TYPE_PCI1760 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1762), TYPE_PCI1762 },
 	{ 0 }
 };
@@ -1109,5 +510,5 @@ static struct pci_driver adv_pci_dio_pci_driver = {
 module_comedi_pci_driver(adv_pci_dio_driver, adv_pci_dio_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for Advantech Digital I/O Cards");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index b2f7679a0116..cac011fdd375 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -1022,14 +1022,17 @@ pci224_auto_attach(struct comedi_device *dev, unsigned long context_model)
 	irq = pci_dev->irq;
 
 	/* Allocate buffer to hold values for AO channel scan. */
-	devpriv->ao_scan_vals = kmalloc(sizeof(devpriv->ao_scan_vals[0]) *
-					board->ao_chans, GFP_KERNEL);
+	devpriv->ao_scan_vals = kmalloc_array(board->ao_chans,
+					      sizeof(devpriv->ao_scan_vals[0]),
+					      GFP_KERNEL);
 	if (!devpriv->ao_scan_vals)
 		return -ENOMEM;
 
 	/* Allocate buffer to hold AO channel scan order. */
-	devpriv->ao_scan_order = kmalloc(sizeof(devpriv->ao_scan_order[0]) *
-					 board->ao_chans, GFP_KERNEL);
+	devpriv->ao_scan_order =
+				kmalloc_array(board->ao_chans,
+					      sizeof(devpriv->ao_scan_order[0]),
+					      GFP_KERNEL);
 	if (!devpriv->ao_scan_order)
 		return -ENOMEM;
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index b00a36a5cb36..ccb37d1f0f8e 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -51,13 +51,13 @@
 
 /* DAC registers */
 #define CB_DDA_DA_CTRL_REG		0x00	   /* D/A Control Register  */
-#define CB_DDA_DA_CTRL_SU		(1 << 0)   /*  Simultaneous update  */
-#define CB_DDA_DA_CTRL_EN		(1 << 1)   /*  Enable specified DAC */
+#define CB_DDA_DA_CTRL_SU		BIT(0)   /*  Simultaneous update  */
+#define CB_DDA_DA_CTRL_EN		BIT(1)   /*  Enable specified DAC */
 #define CB_DDA_DA_CTRL_DAC(x)		((x) << 2) /*  Specify DAC channel  */
 #define CB_DDA_DA_CTRL_RANGE2V5		(0 << 6)   /*  2.5V range           */
 #define CB_DDA_DA_CTRL_RANGE5V		(2 << 6)   /*  5V range             */
 #define CB_DDA_DA_CTRL_RANGE10V		(3 << 6)   /*  10V range            */
-#define CB_DDA_DA_CTRL_UNIP		(1 << 8)   /*  Unipolar range       */
+#define CB_DDA_DA_CTRL_UNIP		BIT(8)   /*  Unipolar range       */
 
 #define DACALIBRATION1	4	/*  D/A CALIBRATION REGISTER 1 */
 /* write bits */
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 15a4093efda1..1bf8ddc6f07c 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -75,8 +75,8 @@
 #define PARPORT_DATA_REG	0x00
 #define PARPORT_STATUS_REG	0x01
 #define PARPORT_CTRL_REG	0x02
-#define PARPORT_CTRL_IRQ_ENA	(1 << 4)
-#define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
+#define PARPORT_CTRL_IRQ_ENA	BIT(4)
+#define PARPORT_CTRL_BIDIR_ENA	BIT(5)
 
 static int parport_data_reg_insn_bits(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 056bca9c67d5..fd8e0b76f764 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -801,9 +801,10 @@ static void das16_ai_munge(struct comedi_device *dev,
 	unsigned short *data = array;
 	unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes);
 	unsigned int i;
+	__le16 *buf = array;
 
 	for (i = 0; i < num_samples; i++) {
-		data[i] = le16_to_cpu(data[i]);
+		data[i] = le16_to_cpu(buf[i]);
 		if (s->maxdata == 0x0fff)
 			data[i] >>= 4;
 		data[i] &= s->maxdata;
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 62a817e4cd64..84c62e256094 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -42,24 +42,24 @@
 #define NI6527_DO_REG(x)		(0x03 + (x))
 #define NI6527_ID_REG			0x06
 #define NI6527_CLR_REG			0x07
-#define NI6527_CLR_EDGE			(1 << 3)
-#define NI6527_CLR_OVERFLOW		(1 << 2)
-#define NI6527_CLR_FILT			(1 << 1)
-#define NI6527_CLR_INTERVAL		(1 << 0)
+#define NI6527_CLR_EDGE			BIT(3)
+#define NI6527_CLR_OVERFLOW		BIT(2)
+#define NI6527_CLR_FILT			BIT(1)
+#define NI6527_CLR_INTERVAL		BIT(0)
 #define NI6527_CLR_IRQS			(NI6527_CLR_EDGE | NI6527_CLR_OVERFLOW)
 #define NI6527_CLR_RESET_FILT		(NI6527_CLR_FILT | NI6527_CLR_INTERVAL)
 #define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
 #define NI6527_FILT_ENA_REG(x)		(0x0c + (x))
 #define NI6527_STATUS_REG		0x14
-#define NI6527_STATUS_IRQ		(1 << 2)
-#define NI6527_STATUS_OVERFLOW		(1 << 1)
-#define NI6527_STATUS_EDGE		(1 << 0)
+#define NI6527_STATUS_IRQ		BIT(2)
+#define NI6527_STATUS_OVERFLOW		BIT(1)
+#define NI6527_STATUS_EDGE		BIT(0)
 #define NI6527_CTRL_REG			0x15
-#define NI6527_CTRL_FALLING		(1 << 4)
-#define NI6527_CTRL_RISING		(1 << 3)
-#define NI6527_CTRL_IRQ			(1 << 2)
-#define NI6527_CTRL_OVERFLOW		(1 << 1)
-#define NI6527_CTRL_EDGE		(1 << 0)
+#define NI6527_CTRL_FALLING		BIT(4)
+#define NI6527_CTRL_RISING		BIT(3)
+#define NI6527_CTRL_IRQ			BIT(2)
+#define NI6527_CTRL_OVERFLOW		BIT(1)
+#define NI6527_CTRL_EDGE		BIT(0)
 #define NI6527_CTRL_DISABLE_IRQS	0
 #define NI6527_CTRL_ENABLE_IRQS		(NI6527_CTRL_FALLING | \
 					 NI6527_CTRL_RISING | \
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index 800d57426070..251117be1205 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -68,25 +68,25 @@
 /* Non-recurring Registers (8-bit except where noted) */
 #define NI_65XX_ID_REG			0x00
 #define NI_65XX_CLR_REG			0x01
-#define NI_65XX_CLR_WDOG_INT		(1 << 6)
-#define NI_65XX_CLR_WDOG_PING		(1 << 5)
-#define NI_65XX_CLR_WDOG_EXP		(1 << 4)
-#define NI_65XX_CLR_EDGE_INT		(1 << 3)
-#define NI_65XX_CLR_OVERFLOW_INT	(1 << 2)
+#define NI_65XX_CLR_WDOG_INT		BIT(6)
+#define NI_65XX_CLR_WDOG_PING		BIT(5)
+#define NI_65XX_CLR_WDOG_EXP		BIT(4)
+#define NI_65XX_CLR_EDGE_INT		BIT(3)
+#define NI_65XX_CLR_OVERFLOW_INT	BIT(2)
 #define NI_65XX_STATUS_REG		0x02
-#define NI_65XX_STATUS_WDOG_INT		(1 << 5)
-#define NI_65XX_STATUS_FALL_EDGE	(1 << 4)
-#define NI_65XX_STATUS_RISE_EDGE	(1 << 3)
-#define NI_65XX_STATUS_INT		(1 << 2)
-#define NI_65XX_STATUS_OVERFLOW_INT	(1 << 1)
-#define NI_65XX_STATUS_EDGE_INT		(1 << 0)
+#define NI_65XX_STATUS_WDOG_INT		BIT(5)
+#define NI_65XX_STATUS_FALL_EDGE	BIT(4)
+#define NI_65XX_STATUS_RISE_EDGE	BIT(3)
+#define NI_65XX_STATUS_INT		BIT(2)
+#define NI_65XX_STATUS_OVERFLOW_INT	BIT(1)
+#define NI_65XX_STATUS_EDGE_INT		BIT(0)
 #define NI_65XX_CTRL_REG		0x03
-#define NI_65XX_CTRL_WDOG_ENA		(1 << 5)
-#define NI_65XX_CTRL_FALL_EDGE_ENA	(1 << 4)
-#define NI_65XX_CTRL_RISE_EDGE_ENA	(1 << 3)
-#define NI_65XX_CTRL_INT_ENA		(1 << 2)
-#define NI_65XX_CTRL_OVERFLOW_ENA	(1 << 1)
-#define NI_65XX_CTRL_EDGE_ENA		(1 << 0)
+#define NI_65XX_CTRL_WDOG_ENA		BIT(5)
+#define NI_65XX_CTRL_FALL_EDGE_ENA	BIT(4)
+#define NI_65XX_CTRL_RISE_EDGE_ENA	BIT(3)
+#define NI_65XX_CTRL_INT_ENA		BIT(2)
+#define NI_65XX_CTRL_OVERFLOW_ENA	BIT(1)
+#define NI_65XX_CTRL_EDGE_ENA		BIT(0)
 #define NI_65XX_REV_REG			0x04 /* 32-bit */
 #define NI_65XX_FILTER_REG		0x08 /* 32-bit */
 #define NI_65XX_RTSI_ROUTE_REG		0x0c /* 16-bit */
@@ -94,24 +94,24 @@
 #define NI_65XX_RTSI_WDOG_REG		0x10 /* 16-bit */
 #define NI_65XX_RTSI_TRIG_REG		0x12 /* 16-bit */
 #define NI_65XX_AUTO_CLK_SEL_REG	0x14 /* PXI-6528 only */
-#define NI_65XX_AUTO_CLK_SEL_STATUS	(1 << 1)
-#define NI_65XX_AUTO_CLK_SEL_DISABLE	(1 << 0)
+#define NI_65XX_AUTO_CLK_SEL_STATUS	BIT(1)
+#define NI_65XX_AUTO_CLK_SEL_DISABLE	BIT(0)
 #define NI_65XX_WDOG_CTRL_REG		0x15
-#define NI_65XX_WDOG_CTRL_ENA		(1 << 0)
+#define NI_65XX_WDOG_CTRL_ENA		BIT(0)
 #define NI_65XX_RTSI_CFG_REG		0x16
-#define NI_65XX_RTSI_CFG_RISE_SENSE	(1 << 2)
-#define NI_65XX_RTSI_CFG_FALL_SENSE	(1 << 1)
-#define NI_65XX_RTSI_CFG_SYNC_DETECT	(1 << 0)
+#define NI_65XX_RTSI_CFG_RISE_SENSE	BIT(2)
+#define NI_65XX_RTSI_CFG_FALL_SENSE	BIT(1)
+#define NI_65XX_RTSI_CFG_SYNC_DETECT	BIT(0)
 #define NI_65XX_WDOG_STATUS_REG		0x17
-#define NI_65XX_WDOG_STATUS_EXP		(1 << 0)
+#define NI_65XX_WDOG_STATUS_EXP		BIT(0)
 #define NI_65XX_WDOG_INTERVAL_REG	0x18 /* 32-bit */
 
 /* Recurring port registers (8-bit) */
 #define NI_65XX_PORT(x)			((x) * 0x10)
 #define NI_65XX_IO_DATA_REG(x)		(0x40 + NI_65XX_PORT(x))
 #define NI_65XX_IO_SEL_REG(x)		(0x41 + NI_65XX_PORT(x))
-#define NI_65XX_IO_SEL_OUTPUT		(0 << 0)
-#define NI_65XX_IO_SEL_INPUT		(1 << 0)
+#define NI_65XX_IO_SEL_OUTPUT		0
+#define NI_65XX_IO_SEL_INPUT		BIT(0)
 #define NI_65XX_RISE_EDGE_ENA_REG(x)	(0x42 + NI_65XX_PORT(x))
 #define NI_65XX_FALL_EDGE_ENA_REG(x)	(0x43 + NI_65XX_PORT(x))
 #define NI_65XX_FILTER_ENA(x)		(0x44 + NI_65XX_PORT(x))
@@ -613,7 +613,7 @@ static int ni_65xx_intr_insn_config(struct comedi_device *dev,
 
 /* ripped from mite.h and mite_setup2() to avoid mite dependency */
 #define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
-#define WENAB		(1 << 7) /* window enable */
+#define WENAB			BIT(7) /* window enable */
 
 static int ni_65xx_mite_init(struct pci_dev *pcidev)
 {
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index f4c580f65a89..3e72718801a9 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -214,8 +214,9 @@ static int ni_670x_auto_attach(struct comedi_device *dev,
 	if (s->n_chan == 32) {
 		const struct comedi_lrange **range_table_list;
 
-		range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
-					   GFP_KERNEL);
+		range_table_list = kmalloc_array(32,
+						 sizeof(struct comedi_lrange *),
+						 GFP_KERNEL);
 		if (!range_table_list)
 			return -ENOMEM;
 		s->range_table_list = range_table_list;
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 6cc304a4c59b..5e8130a7d670 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -579,48 +579,54 @@ static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel)
 	return 0;
 }
 
-/* negative channel means no channel */
-static inline void ni_set_ai_dma_channel(struct comedi_device *dev, int channel)
+static inline void ni_set_ai_dma_channel(struct comedi_device *dev,
+					 unsigned channel)
 {
-	unsigned bits = 0;
-
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
+	unsigned bits = ni_stc_dma_channel_select_bitfield(channel);
 
 	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG,
 			NI_E_DMA_AI_SEL_MASK, NI_E_DMA_AI_SEL(bits));
 }
 
-/* negative channel means no channel */
-static inline void ni_set_ao_dma_channel(struct comedi_device *dev, int channel)
+static inline void ni_set_ai_dma_no_channel(struct comedi_device *dev)
 {
-	unsigned bits = 0;
+	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AI_SEL_MASK, 0);
+}
 
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
+static inline void ni_set_ao_dma_channel(struct comedi_device *dev,
+					 unsigned channel)
+{
+	unsigned bits = ni_stc_dma_channel_select_bitfield(channel);
 
 	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG,
 			NI_E_DMA_AO_SEL_MASK, NI_E_DMA_AO_SEL(bits));
 }
 
-/* negative channel means no channel */
+static inline void ni_set_ao_dma_no_channel(struct comedi_device *dev)
+{
+	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AO_SEL_MASK, 0);
+}
+
 static inline void ni_set_gpct_dma_channel(struct comedi_device *dev,
 					   unsigned gpct_index,
-					   int channel)
+					   unsigned channel)
 {
-	unsigned bits = 0;
-
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
+	unsigned bits = ni_stc_dma_channel_select_bitfield(channel);
 
 	ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG,
 			NI_E_DMA_G0_G1_SEL_MASK(gpct_index),
 			NI_E_DMA_G0_G1_SEL(gpct_index, bits));
 }
 
-/* negative mite_channel means no channel */
+static inline void ni_set_gpct_dma_no_channel(struct comedi_device *dev,
+					      unsigned gpct_index)
+{
+	ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG,
+			NI_E_DMA_G0_G1_SEL_MASK(gpct_index), 0);
+}
+
 static inline void ni_set_cdo_dma_channel(struct comedi_device *dev,
-					  int mite_channel)
+					  unsigned mite_channel)
 {
 	struct ni_private *devpriv = dev->private;
 	unsigned long flags;
@@ -628,16 +634,26 @@ static inline void ni_set_cdo_dma_channel(struct comedi_device *dev,
 
 	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
 	devpriv->cdio_dma_select_reg &= ~NI_M_CDIO_DMA_SEL_CDO_MASK;
-	if (mite_channel >= 0) {
-		/*
-		 * XXX just guessing ni_stc_dma_channel_select_bitfield()
-		 * returns the right bits, under the assumption the cdio dma
-		 * selection works just like ai/ao/gpct.
-		 * Definitely works for dma channels 0 and 1.
-		 */
-		bits = ni_stc_dma_channel_select_bitfield(mite_channel);
-		devpriv->cdio_dma_select_reg |= NI_M_CDIO_DMA_SEL_CDO(bits);
-	}
+	/*
+	 * XXX just guessing ni_stc_dma_channel_select_bitfield()
+	 * returns the right bits, under the assumption the cdio dma
+	 * selection works just like ai/ao/gpct.
+	 * Definitely works for dma channels 0 and 1.
+	 */
+	bits = ni_stc_dma_channel_select_bitfield(mite_channel);
+	devpriv->cdio_dma_select_reg |= NI_M_CDIO_DMA_SEL_CDO(bits);
+	ni_writeb(dev, devpriv->cdio_dma_select_reg, NI_M_CDIO_DMA_SEL_REG);
+	mmiowb();
+	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
+}
+
+static inline void ni_set_cdo_dma_no_channel(struct comedi_device *dev)
+{
+	struct ni_private *devpriv = dev->private;
+	unsigned long flags;
+
+	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
+	devpriv->cdio_dma_select_reg &= ~NI_M_CDIO_DMA_SEL_CDO_MASK;
 	ni_writeb(dev, devpriv->cdio_dma_select_reg, NI_M_CDIO_DMA_SEL_REG);
 	mmiowb();
 	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
@@ -745,7 +761,7 @@ static void ni_release_ai_mite_channel(struct comedi_device *dev)
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ai_mite_chan) {
-		ni_set_ai_dma_channel(dev, -1);
+		ni_set_ai_dma_no_channel(dev);
 		mite_release_channel(devpriv->ai_mite_chan);
 		devpriv->ai_mite_chan = NULL;
 	}
@@ -761,7 +777,7 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev)
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->ao_mite_chan) {
-		ni_set_ao_dma_channel(dev, -1);
+		ni_set_ao_dma_no_channel(dev);
 		mite_release_channel(devpriv->ao_mite_chan);
 		devpriv->ao_mite_chan = NULL;
 	}
@@ -781,7 +797,7 @@ static void ni_release_gpct_mite_channel(struct comedi_device *dev,
 		struct mite_channel *mite_chan =
 		    devpriv->counter_dev->counters[gpct_index].mite_chan;
 
-		ni_set_gpct_dma_channel(dev, gpct_index, -1);
+		ni_set_gpct_dma_no_channel(dev, gpct_index);
 		ni_tio_set_mite_channel(&devpriv->
 					counter_dev->counters[gpct_index],
 					NULL);
@@ -799,7 +815,7 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev)
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
 	if (devpriv->cdo_mite_chan) {
-		ni_set_cdo_dma_channel(dev, -1);
+		ni_set_cdo_dma_no_channel(dev);
 		mite_release_channel(devpriv->cdo_mite_chan);
 		devpriv->cdo_mite_chan = NULL;
 	}
@@ -1516,13 +1532,17 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	unsigned short *array = data;
 	unsigned int *larray = data;
 	unsigned int i;
+#ifdef PCIDMA
+	__le16 *barray = data;
+	__le32 *blarray = data;
+#endif
 
 	for (i = 0; i < nsamples; i++) {
 #ifdef PCIDMA
 		if (s->subdev_flags & SDF_LSAMPL)
-			larray[i] = le32_to_cpu(larray[i]);
+			larray[i] = le32_to_cpu(blarray[i]);
 		else
-			array[i] = le16_to_cpu(array[i]);
+			array[i] = le16_to_cpu(barray[i]);
 #endif
 		if (s->subdev_flags & SDF_LSAMPL)
 			larray[i] += devpriv->ai_offset[chan_index];
@@ -2574,6 +2594,9 @@ static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes);
 	unsigned short *array = data;
 	unsigned int i;
+#ifdef PCIDMA
+	__le16 buf, *barray = data;
+#endif
 
 	for (i = 0; i < nsamples; i++) {
 		unsigned int range = CR_RANGE(cmd->chanlist[chan_index]);
@@ -2586,10 +2609,11 @@ static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (comedi_range_is_bipolar(s, range))
 			val = comedi_offset_munge(s, val);
 #ifdef PCIDMA
-		val = cpu_to_le16(val);
-#endif
+		buf = cpu_to_le16(val);
+		barray[i] = buf;
+#else
 		array[i] = val;
-
+#endif
 		chan_index++;
 		chan_index %= cmd->chanlist_len;
 	}
diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h
index 25706531b885..f5cd6d5004bd 100644
--- a/drivers/staging/comedi/drivers/plx9080.h
+++ b/drivers/staging/comedi/drivers/plx9080.h
@@ -1,4 +1,5 @@
-/* plx9080.h
+/*
+ * plx9080.h
  *
  * Copyright (C) 2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
  *
@@ -33,8 +34,10 @@ struct plx_dma_desc {
 	__le32 local_start_addr;
 	/* transfer_size is in bytes, only first 23 bits of register are used */
 	__le32 transfer_size;
-	/* address of next descriptor (quad word aligned), plus some
-	 * additional bits (see PLX_DMA0_DESCRIPTOR_REG) */
+	/*
+	 * address of next descriptor (quad word aligned), plus some
+	 * additional bits (see PLX_DMA0_DESCRIPTOR_REG)
+	 */
 	__le32 next;
 };
 
@@ -46,23 +49,31 @@ struct plx_dma_desc {
 **
 **********************************************************************/
 
-#define PLX_LAS0RNG_REG         0x0000	/* L, Local Addr Space 0 Range Register */
-#define PLX_LAS1RNG_REG         0x00f0	/* L, Local Addr Space 1 Range Register */
+/* L, Local Addr Space 0 Range Register */
+#define PLX_LAS0RNG_REG         0x0000
+/* L, Local Addr Space 1 Range Register */
+#define PLX_LAS1RNG_REG         0x00f0
 #define  LRNG_IO           0x00000001	/* Map to: 1=I/O, 0=Mem */
 #define  LRNG_ANY32        0x00000000	/* Locate anywhere in 32 bit */
 #define  LRNG_LT1MB        0x00000002	/* Locate in 1st meg */
 #define  LRNG_ANY64        0x00000004	/* Locate anywhere in 64 bit */
-#define  LRNG_MEM_MASK     0xfffffff0	/*  bits that specify range for memory io */
-#define  LRNG_IO_MASK     0xfffffffa	/*  bits that specify range for normal io */
-
-#define PLX_LAS0MAP_REG         0x0004	/* L, Local Addr Space 0 Remap Register */
-#define PLX_LAS1MAP_REG         0x00f4	/* L, Local Addr Space 1 Remap Register */
+/*  bits that specify range for memory io */
+#define  LRNG_MEM_MASK     0xfffffff0
+/*  bits that specify range for normal io */
+#define  LRNG_IO_MASK     0xfffffffa
+/* L, Local Addr Space 0 Remap Register */
+#define PLX_LAS0MAP_REG         0x0004
+/* L, Local Addr Space 1 Remap Register */
+#define PLX_LAS1MAP_REG         0x00f4
 #define  LMAP_EN           0x00000001	/* Enable slave decode */
-#define  LMAP_MEM_MASK     0xfffffff0	/*  bits that specify decode for memory io */
-#define  LMAP_IO_MASK     0xfffffffa	/*  bits that specify decode bits for normal io */
+/*  bits that specify decode for memory io */
+#define  LMAP_MEM_MASK     0xfffffff0
+/*  bits that specify decode bits for normal io */
+#define  LMAP_IO_MASK     0xfffffffa
 
-/* Mode/Arbitration Register.
-*/
+/*
+ * Mode/Arbitration Register.
+ */
 #define PLX_MARB_REG         0x8	/* L, Local Arbitration Register */
 #define PLX_DMAARB_REG      0xac
 enum marb_bits {
@@ -72,35 +83,45 @@ enum marb_bits {
 	MARB_LPEN = 0x00020000,	/* Pause Timer Enable */
 	MARB_BREQ = 0x00040000,	/* Local Bus BREQ Enable */
 	MARB_DMA_PRIORITY_MASK = 0x00180000,
-	MARB_LBDS_GIVE_UP_BUS_MODE = 0x00200000,	/* local bus direct slave give up bus mode */
-	MARB_DS_LLOCK_ENABLE = 0x00400000,	/* direct slave LLOCKo# enable */
+	/* local bus direct slave give up bus mode */
+	MARB_LBDS_GIVE_UP_BUS_MODE = 0x00200000,
+	/* direct slave LLOCKo# enable */
+	MARB_DS_LLOCK_ENABLE = 0x00400000,
 	MARB_PCI_REQUEST_MODE = 0x00800000,
 	MARB_PCIv21_MODE = 0x01000000,	/* pci specification v2.1 mode */
 	MARB_PCI_READ_NO_WRITE_MODE = 0x02000000,
 	MARB_PCI_READ_WITH_WRITE_FLUSH_MODE = 0x04000000,
-	MARB_GATE_TIMER_WITH_BREQ = 0x08000000,	/* gate local bus latency timer with BREQ */
+	/* gate local bus latency timer with BREQ */
+	MARB_GATE_TIMER_WITH_BREQ = 0x08000000,
 	MARB_PCI_READ_NO_FLUSH_MODE = 0x10000000,
 	MARB_USE_SUBSYSTEM_IDS = 0x20000000,
 };
 
 #define PLX_BIGEND_REG 0xc
 enum bigend_bits {
-	BIGEND_CONFIG = 0x1,	/* use big endian ordering for configuration register accesses */
+	/* use big endian ordering for configuration register accesses */
+	BIGEND_CONFIG = 0x1,
 	BIGEND_DIRECT_MASTER = 0x2,
 	BIGEND_DIRECT_SLAVE_LOCAL0 = 0x4,
 	BIGEND_ROM = 0x8,
-	BIGEND_BYTE_LANE = 0x10,	/* use byte lane consisting of most significant bits instead of least significant */
+	/*
+	 * use byte lane consisting of most significant bits instead of
+	 * least significant
+	 */
+	BIGEND_BYTE_LANE = 0x10,
 	BIGEND_DIRECT_SLAVE_LOCAL1 = 0x20,
 	BIGEND_DMA1 = 0x40,
 	BIGEND_DMA0 = 0x80,
 };
 
-/* Note: The Expansion ROM  stuff is only relevant to the PC environment.
+/*
+** Note: The Expansion ROM  stuff is only relevant to the PC environment.
 **       This expansion ROM code is executed by the host CPU at boot time.
 **       For this reason no bit definitions are provided here.
-*/
+ */
 #define PLX_ROMRNG_REG         0x0010	/* L, Expn ROM Space Range Register */
-#define PLX_ROMMAP_REG         0x0014	/* L, Local Addr Space Range Register */
+/* L, Local Addr Space Range Register */
+#define PLX_ROMMAP_REG         0x0014
 
 #define PLX_REGION0_REG         0x0018	/* L, Local Bus Region 0 Descriptor */
 #define  RGN_WIDTH         0x00000002	/* Local bus width bits */
@@ -190,7 +211,8 @@ enum bigend_bits {
 #define  ICS_TA_DMA0       0x02000000	/* Target Abort - DMA #0 */
 #define  ICS_TA_DMA1       0x04000000	/* Target Abort - DMA #1 */
 #define  ICS_TA_RA         0x08000000	/* Target Abort - Retry Timeout */
-#define  ICS_MBIA(x)       (0x10000000 << ((x) & 0x3))	/*  mailbox x is active */
+/*  mailbox x is active */
+#define  ICS_MBIA(x)       (0x10000000 << ((x) & 0x3))
 
 #define PLX_CONTROL_REG        0x006C	/* L, EEPROM Cntl & PCI Cmd Codes */
 #define  CTL_RDMA          0x0000000E	/* DMA Read Command */
@@ -221,28 +243,38 @@ enum bigend_bits {
 #define  PLX_EN_BTERM_BIT	0x80	/*  enable BTERM# input */
 #define  PLX_DMA_LOCAL_BURST_EN_BIT	0x100	/*  enable local burst mode */
 #define  PLX_EN_CHAIN_BIT	0x200	/*  enables chaining */
-#define  PLX_EN_DMA_DONE_INTR_BIT	0x400	/*  enables interrupt on dma done */
-#define  PLX_LOCAL_ADDR_CONST_BIT	0x800	/*  hold local address constant (don't increment) */
-#define  PLX_DEMAND_MODE_BIT	0x1000	/*  enables demand-mode for dma transfer */
+/*  enables interrupt on dma done */
+#define  PLX_EN_DMA_DONE_INTR_BIT	0x400
+/*  hold local address constant (don't increment) */
+#define  PLX_LOCAL_ADDR_CONST_BIT	0x800
+/*  enables demand-mode for dma transfer */
+#define  PLX_DEMAND_MODE_BIT	0x1000
 #define  PLX_EOT_ENABLE_BIT	0x4000
 #define  PLX_STOP_MODE_BIT 0x8000
-#define  PLX_DMA_INTR_PCI_BIT	0x20000	/*  routes dma interrupt to pci bus (instead of local bus) */
+/*  routes dma interrupt to pci bus (instead of local bus) */
+#define  PLX_DMA_INTR_PCI_BIT	0x20000
 
-#define PLX_DMA0_PCI_ADDRESS_REG	0x84	/*  pci address that dma transfers start at */
+/*  pci address that dma transfers start at */
+#define PLX_DMA0_PCI_ADDRESS_REG	0x84
 #define PLX_DMA1_PCI_ADDRESS_REG	0x98
 
-#define PLX_DMA0_LOCAL_ADDRESS_REG	0x88	/*  local address that dma transfers start at */
+/*  local address that dma transfers start at */
+#define PLX_DMA0_LOCAL_ADDRESS_REG	0x88
 #define PLX_DMA1_LOCAL_ADDRESS_REG	0x9c
 
-#define PLX_DMA0_TRANSFER_SIZE_REG	0x8c	/*  number of bytes to transfer (first 23 bits) */
+/*  number of bytes to transfer (first 23 bits) */
+#define PLX_DMA0_TRANSFER_SIZE_REG	0x8c
 #define PLX_DMA1_TRANSFER_SIZE_REG	0xa0
 
 #define PLX_DMA0_DESCRIPTOR_REG	0x90	/*  descriptor pointer register */
 #define PLX_DMA1_DESCRIPTOR_REG	0xa4
-#define  PLX_DESC_IN_PCI_BIT	0x1	/*  descriptor is located in pci space (not local space) */
+/*  descriptor is located in pci space (not local space) */
+#define  PLX_DESC_IN_PCI_BIT	0x1
 #define  PLX_END_OF_CHAIN_BIT	0x2	/*  end of chain bit */
-#define  PLX_INTR_TERM_COUNT	0x4	/*  interrupt when this descriptor's transfer is finished */
-#define  PLX_XFER_LOCAL_TO_PCI 0x8	/*  transfer from local to pci bus (not pci to local) */
+/*  interrupt when this descriptor's transfer is finished */
+#define  PLX_INTR_TERM_COUNT	0x4
+/*  transfer from local to pci bus (not pci to local) */
+#define  PLX_XFER_LOCAL_TO_PCI 0x8
 
 #define PLX_DMA0_CS_REG	0xa8	/*  command status register */
 #define PLX_DMA1_CS_REG	0xa9
@@ -288,10 +320,11 @@ enum bigend_bits {
 #define MBX_STS_PCIRESET   0x00000100	/* Host issued PCI reset request */
 #define MBX_STS_BUSY       0x00000080	/* PUTS is in progress */
 #define MBX_STS_ERROR      0x00000040	/* PUTS has failed */
-#define MBX_STS_RESERVED   0x000000c0	/* Undefined -> status in transition.
-					   We are in process of changing
-					   bits; we SET Error bit before
-					   RESET of Busy bit */
+/*
+ * Undefined -> status in transition. We are in process of changing bits;
+ * we SET Error bit before RESET of Busy bit
+ */
+#define MBX_STS_RESERVED   0x000000c0
 
 #define MBX_RESERVED_5     0x00000020	/* FYI: reserved/unused bit */
 #define MBX_RESERVED_4     0x00000010	/* FYI: reserved/unused bit */
@@ -320,12 +353,12 @@ enum bigend_bits {
 #define MBX_CMD_BSWAP_0    0x8c000000	/* use scheme 0 */
 #define MBX_CMD_BSWAP_1    0x8c000001	/* use scheme 1 */
 
-#define MBX_CMD_SETHMS     0x8d000000	/* setup host memory access window
-					   size */
-#define MBX_CMD_SETHBA     0x8e000000	/* setup host memory access base
-					   address */
-#define MBX_CMD_MGO        0x8f000000	/* perform memory setup and continue
-					   (IE. Done) */
+/* setup host memory access window size */
+#define MBX_CMD_SETHMS     0x8d000000
+/* setup host memory access base address */
+#define MBX_CMD_SETHBA     0x8e000000
+/* perform memory setup and continue (IE. Done) */
+#define MBX_CMD_MGO        0x8f000000
 #define MBX_CMD_NOOP       0xFF000000	/* dummy, illegal command */
 
 /*****************************************/
@@ -348,7 +381,8 @@ enum bigend_bits {
 /***************************************/
 
 #define MBX_BTYPE_MASK          0x0000ffff	/* PUTS Board Type Register */
-#define MBX_BTYPE_FAMILY_MASK   0x0000ff00	/* PUTS Board Family Register */
+/* PUTS Board Family Register */
+#define MBX_BTYPE_FAMILY_MASK   0x0000ff00
 #define MBX_BTYPE_SUBTYPE_MASK  0x000000ff	/* PUTS Board Subtype */
 
 #define MBX_BTYPE_PLX9060       0x00000100	/* PLX family type */
@@ -378,12 +412,12 @@ enum bigend_bits {
 
 /* system allocates this many bytes for address mapping mailbox space */
 #define MBX_ADDR_SPACE_360 0x80	/* wanXL100s/200/400 */
-#define MBX_ADDR_MASK_360 (MBX_ADDR_SPACE_360-1)
+#define MBX_ADDR_MASK_360 (MBX_ADDR_SPACE_360 - 1)
 
 static inline int plx9080_abort_dma(void __iomem *iobase, unsigned int channel)
 {
 	void __iomem *dma_cs_addr;
-	uint8_t dma_status;
+	u8 dma_status;
 	const int timeout = 10000;
 	unsigned int i;
 
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index d70c97947627..c80527db9c19 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -37,7 +37,6 @@
 
 #include <linux/module.h>
 #include "../comedidev.h"
-#include <asm/byteorder.h>
 
 /*
  * Register I/O map
@@ -84,7 +83,92 @@
 #define S526_GPCT_LSB_REG(x)	(0x12 + ((x) * 8))
 #define S526_GPCT_MSB_REG(x)	(0x14 + ((x) * 8))
 #define S526_GPCT_MODE_REG(x)	(0x16 + ((x) * 8))
+#define S526_GPCT_MODE_COUT_SRC(x)	((x) << 0)
+#define S526_GPCT_MODE_COUT_SRC_MASK	S526_GPCT_MODE_COUT_SRC(0x1)
+#define S526_GPCT_MODE_COUT_SRC_RCAP	S526_GPCT_MODE_COUT_SRC(0)
+#define S526_GPCT_MODE_COUT_SRC_RTGL	S526_GPCT_MODE_COUT_SRC(1)
+#define S526_GPCT_MODE_COUT_POL(x)	((x) << 1)
+#define S526_GPCT_MODE_COUT_POL_MASK	S526_GPCT_MODE_COUT_POL(0x1)
+#define S526_GPCT_MODE_COUT_POL_NORM	S526_GPCT_MODE_COUT_POL(0)
+#define S526_GPCT_MODE_COUT_POL_INV	S526_GPCT_MODE_COUT_POL(1)
+#define S526_GPCT_MODE_AUTOLOAD(x)	((x) << 2)
+#define S526_GPCT_MODE_AUTOLOAD_MASK	S526_GPCT_MODE_AUTOLOAD(0x7)
+#define S526_GPCT_MODE_AUTOLOAD_NONE	S526_GPCT_MODE_AUTOLOAD(0)
+/* these 3 bits can be OR'ed */
+#define S526_GPCT_MODE_AUTOLOAD_RO	S526_GPCT_MODE_AUTOLOAD(0x1)
+#define S526_GPCT_MODE_AUTOLOAD_IXFALL	S526_GPCT_MODE_AUTOLOAD(0x2)
+#define S526_GPCT_MODE_AUTOLOAD_IXRISE	S526_GPCT_MODE_AUTOLOAD(0x4)
+#define S526_GPCT_MODE_HWCTEN_SRC(x)	((x) << 5)
+#define S526_GPCT_MODE_HWCTEN_SRC_MASK	S526_GPCT_MODE_HWCTEN_SRC(0x3)
+#define S526_GPCT_MODE_HWCTEN_SRC_CEN	S526_GPCT_MODE_HWCTEN_SRC(0)
+#define S526_GPCT_MODE_HWCTEN_SRC_IX	S526_GPCT_MODE_HWCTEN_SRC(1)
+#define S526_GPCT_MODE_HWCTEN_SRC_IXRF	S526_GPCT_MODE_HWCTEN_SRC(2)
+#define S526_GPCT_MODE_HWCTEN_SRC_NRCAP	S526_GPCT_MODE_HWCTEN_SRC(3)
+#define S526_GPCT_MODE_CTEN_CTRL(x)	((x) << 7)
+#define S526_GPCT_MODE_CTEN_CTRL_MASK	S526_GPCT_MODE_CTEN_CTRL(0x3)
+#define S526_GPCT_MODE_CTEN_CTRL_DIS	S526_GPCT_MODE_CTEN_CTRL(0)
+#define S526_GPCT_MODE_CTEN_CTRL_ENA	S526_GPCT_MODE_CTEN_CTRL(1)
+#define S526_GPCT_MODE_CTEN_CTRL_HW	S526_GPCT_MODE_CTEN_CTRL(2)
+#define S526_GPCT_MODE_CTEN_CTRL_INVHW	S526_GPCT_MODE_CTEN_CTRL(3)
+#define S526_GPCT_MODE_CLK_SRC(x)	((x) << 9)
+#define S526_GPCT_MODE_CLK_SRC_MASK	S526_GPCT_MODE_CLK_SRC(0x3)
+/* if count direction control set to quadrature */
+#define S526_GPCT_MODE_CLK_SRC_QUADX1	S526_GPCT_MODE_CLK_SRC(0)
+#define S526_GPCT_MODE_CLK_SRC_QUADX2	S526_GPCT_MODE_CLK_SRC(1)
+#define S526_GPCT_MODE_CLK_SRC_QUADX4	S526_GPCT_MODE_CLK_SRC(2)
+#define S526_GPCT_MODE_CLK_SRC_QUADX4_	S526_GPCT_MODE_CLK_SRC(3)
+/* if count direction control set to software control */
+#define S526_GPCT_MODE_CLK_SRC_ARISE	S526_GPCT_MODE_CLK_SRC(0)
+#define S526_GPCT_MODE_CLK_SRC_AFALL	S526_GPCT_MODE_CLK_SRC(1)
+#define S526_GPCT_MODE_CLK_SRC_INT	S526_GPCT_MODE_CLK_SRC(2)
+#define S526_GPCT_MODE_CLK_SRC_INTHALF	S526_GPCT_MODE_CLK_SRC(3)
+#define S526_GPCT_MODE_CT_DIR(x)	((x) << 11)
+#define S526_GPCT_MODE_CT_DIR_MASK	S526_GPCT_MODE_CT_DIR(0x1)
+/* if count direction control set to software control */
+#define S526_GPCT_MODE_CT_DIR_UP	S526_GPCT_MODE_CT_DIR(0)
+#define S526_GPCT_MODE_CT_DIR_DOWN	S526_GPCT_MODE_CT_DIR(1)
+#define S526_GPCT_MODE_CTDIR_CTRL(x)	((x) << 12)
+#define S526_GPCT_MODE_CTDIR_CTRL_MASK	S526_GPCT_MODE_CTDIR_CTRL(0x1)
+#define S526_GPCT_MODE_CTDIR_CTRL_QUAD	S526_GPCT_MODE_CTDIR_CTRL(0)
+#define S526_GPCT_MODE_CTDIR_CTRL_SOFT	S526_GPCT_MODE_CTDIR_CTRL(1)
+#define S526_GPCT_MODE_LATCH_CTRL(x)	((x) << 13)
+#define S526_GPCT_MODE_LATCH_CTRL_MASK	S526_GPCT_MODE_LATCH_CTRL(0x1)
+#define S526_GPCT_MODE_LATCH_CTRL_READ	S526_GPCT_MODE_LATCH_CTRL(0)
+#define S526_GPCT_MODE_LATCH_CTRL_EVENT	S526_GPCT_MODE_LATCH_CTRL(1)
+#define S526_GPCT_MODE_PR_SELECT(x)	((x) << 14)
+#define S526_GPCT_MODE_PR_SELECT_MASK	S526_GPCT_MODE_PR_SELECT(0x1)
+#define S526_GPCT_MODE_PR_SELECT_PR0	S526_GPCT_MODE_PR_SELECT(0)
+#define S526_GPCT_MODE_PR_SELECT_PR1	S526_GPCT_MODE_PR_SELECT(1)
+/* Control/Status - R = readable, W = writeable, C = write 1 to clear */
 #define S526_GPCT_CTRL_REG(x)	(0x18 + ((x) * 8))
+#define S526_GPCT_CTRL_EV_STATUS(x)	((x) << 0)		/* RC */
+#define S526_GPCT_CTRL_EV_STATUS_MASK	S526_GPCT_EV_STATUS(0xf)
+#define S526_GPCT_CTRL_EV_STATUS_NONE	S526_GPCT_EV_STATUS(0)
+/* these 4 bits can be OR'ed */
+#define S526_GPCT_CTRL_EV_STATUS_ECAP	S526_GPCT_EV_STATUS(0x1)
+#define S526_GPCT_CTRL_EV_STATUS_ICAPN	S526_GPCT_EV_STATUS(0x2)
+#define S526_GPCT_CTRL_EV_STATUS_ICAPP	S526_GPCT_EV_STATUS(0x4)
+#define S526_GPCT_CTRL_EV_STATUS_RCAP	S526_GPCT_EV_STATUS(0x8)
+#define S526_GPCT_CTRL_COUT_STATUS	BIT(4)			/* R */
+#define S526_GPCT_CTRL_INDEX_STATUS	BIT(5)			/* R */
+#define S525_GPCT_CTRL_INTEN(x)		((x) << 6)		/* W */
+#define S525_GPCT_CTRL_INTEN_MASK	S526_GPCT_CTRL_INTEN(0xf)
+#define S525_GPCT_CTRL_INTEN_NONE	S526_GPCT_CTRL_INTEN(0)
+/* these 4 bits can be OR'ed */
+#define S525_GPCT_CTRL_INTEN_ERROR	S526_GPCT_CTRL_INTEN(0x1)
+#define S525_GPCT_CTRL_INTEN_IXFALL	S526_GPCT_CTRL_INTEN(0x2)
+#define S525_GPCT_CTRL_INTEN_IXRISE	S526_GPCT_CTRL_INTEN(0x4)
+#define S525_GPCT_CTRL_INTEN_RO		S526_GPCT_CTRL_INTEN(0x8)
+#define S525_GPCT_CTRL_LATCH_SEL(x)	((x) << 10)		/* W */
+#define S525_GPCT_CTRL_LATCH_SEL_MASK	S526_GPCT_CTRL_LATCH_SEL(0x7)
+#define S525_GPCT_CTRL_LATCH_SEL_NONE	S526_GPCT_CTRL_LATCH_SEL(0)
+/* these 3 bits can be OR'ed */
+#define S525_GPCT_CTRL_LATCH_SEL_IXFALL	S526_GPCT_CTRL_LATCH_SEL(0x1)
+#define S525_GPCT_CTRL_LATCH_SEL_IXRISE	S526_GPCT_CTRL_LATCH_SEL(0x2)
+#define S525_GPCT_CTRL_LATCH_SEL_ITIMER	S526_GPCT_CTRL_LATCH_SEL(0x4)
+#define S525_GPCT_CTRL_CT_ARM		BIT(13)			/* W */
+#define S525_GPCT_CTRL_CT_LOAD		BIT(14)			/* W */
+#define S526_GPCT_CTRL_CT_RESET		BIT(15)			/* W */
 #define S526_EEPROM_DATA_REG	0x32
 #define S526_EEPROM_CTRL_REG	0x34
 #define S526_EEPROM_CTRL_ADDR(x) (((x) & 0x3f) << 3)
@@ -92,41 +176,6 @@
 #define S526_EEPROM_CTRL_READ	S526_EEPROM_CTRL(2)
 #define S526_EEPROM_CTRL_START	BIT(0)
 
-struct counter_mode_register_t {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-	unsigned short coutSource:1;
-	unsigned short coutPolarity:1;
-	unsigned short autoLoadResetRcap:3;
-	unsigned short hwCtEnableSource:2;
-	unsigned short ctEnableCtrl:2;
-	unsigned short clockSource:2;
-	unsigned short countDir:1;
-	unsigned short countDirCtrl:1;
-	unsigned short outputRegLatchCtrl:1;
-	unsigned short preloadRegSel:1;
-	unsigned short reserved:1;
- #elif defined(__BIG_ENDIAN_BITFIELD)
-	unsigned short reserved:1;
-	unsigned short preloadRegSel:1;
-	unsigned short outputRegLatchCtrl:1;
-	unsigned short countDirCtrl:1;
-	unsigned short countDir:1;
-	unsigned short clockSource:2;
-	unsigned short ctEnableCtrl:2;
-	unsigned short hwCtEnableSource:2;
-	unsigned short autoLoadResetRcap:3;
-	unsigned short coutPolarity:1;
-	unsigned short coutSource:1;
-#else
-#error Unknown bit field order
-#endif
-};
-
-union cmReg {
-	struct counter_mode_register_t reg;
-	unsigned short value;
-};
-
 struct s526_private {
 	unsigned int gpct_config[4];
 	unsigned short ai_ctrl;
@@ -174,7 +223,6 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 	struct s526_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int val;
-	union cmReg cmReg;
 
 	/*
 	 * Check what type of Counter the user requested
@@ -192,28 +240,31 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 
 #if 1
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/*  Reset the counter if it is software preload */
-		if (cmReg.reg.autoLoadResetRcap == 0) {
+		if ((val & S526_GPCT_MODE_AUTOLOAD_MASK) ==
+		    S526_GPCT_MODE_AUTOLOAD_NONE) {
 			/*  Reset the counter */
-			outw(0x8000, dev->iobase + S526_GPCT_CTRL_REG(chan));
-			/* Load the counter from PR0
-			 * outw(0x4000, dev->iobase + S526_GPCT_CTRL_REG(chan));
+			outw(S526_GPCT_CTRL_CT_RESET,
+			     dev->iobase + S526_GPCT_CTRL_REG(chan));
+			/*
+			 * Load the counter from PR0
+			 * outw(S526_GPCT_CTRL_CT_LOAD,
+			 *      dev->iobase + S526_GPCT_CTRL_REG(chan));
 			 */
 		}
 #else
-		/*  0 quadrature, 1 software control */
-		cmReg.reg.countDirCtrl = 0;
+		val = S526_GPCT_MODE_CTDIR_CTRL_QUAD;
 
 		/*  data[1] contains GPCT_X1, GPCT_X2 or GPCT_X4 */
 		if (data[1] == GPCT_X2)
-			cmReg.reg.clockSource = 1;
+			val |= S526_GPCT_MODE_CLK_SRC_QUADX2;
 		else if (data[1] == GPCT_X4)
-			cmReg.reg.clockSource = 2;
+			val |= S526_GPCT_MODE_CLK_SRC_QUADX4;
 		else
-			cmReg.reg.clockSource = 0;
+			val |= S526_GPCT_MODE_CLK_SRC_QUADX1;
 
 		/*  When to take into account the indexpulse: */
 		/*
@@ -224,13 +275,14 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		 * }
 		 */
 		/*  Take into account the index pulse? */
-		if (data[3] == GPCT_RESET_COUNTER_ON_INDEX)
+		if (data[3] == GPCT_RESET_COUNTER_ON_INDEX) {
 			/*  Auto load with INDEX^ */
-			cmReg.reg.autoLoadResetRcap = 4;
+			val |= S526_GPCT_MODE_AUTOLOAD_IXRISE;
+		}
 
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/*  Load the pre-load register */
 		s526_gpct_write(dev, chan, data[2]);
@@ -241,11 +293,14 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 			     dev->iobase + S526_GPCT_CTRL_REG(chan));
 
 		/*  Reset the counter if it is software preload */
-		if (cmReg.reg.autoLoadResetRcap == 0) {
+		if ((val & S526_GPCT_MODE_AUTOLOAD_MASK) ==
+		    S526_GPCT_MODE_AUTOLOAD_NONE) {
 			/*  Reset the counter */
-			outw(0x8000, dev->iobase + S526_GPCT_CTRL_REG(chan));
+			outw(S526_GPCT_CTRL_CT_RESET,
+			     dev->iobase + S526_GPCT_CTRL_REG(chan));
 			/*  Load the counter from PR0 */
-			outw(0x4000, dev->iobase + S526_GPCT_CTRL_REG(chan));
+			outw(S526_GPCT_CTRL_CT_LOAD,
+			     dev->iobase + S526_GPCT_CTRL_REG(chan));
 		}
 #endif
 		break;
@@ -261,17 +316,21 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		devpriv->gpct_config[chan] = data[0];
 
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		/* Select PR0 */
+		val &= ~S526_GPCT_MODE_PR_SELECT_MASK;
+		val |= S526_GPCT_MODE_PR_SELECT_PR0;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/* Load the pre-load register 0 */
 		s526_gpct_write(dev, chan, data[2]);
 
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		/* Select PR1 */
+		val &= ~S526_GPCT_MODE_PR_SELECT_MASK;
+		val |= S526_GPCT_MODE_PR_SELECT_PR1;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/* Load the pre-load register 1 */
 		s526_gpct_write(dev, chan, data[3]);
@@ -294,17 +353,21 @@ static int s526_gpct_insn_config(struct comedi_device *dev,
 		devpriv->gpct_config[chan] = data[0];
 
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		/* Select PR0 */
+		val &= ~S526_GPCT_MODE_PR_SELECT_MASK;
+		val |= S526_GPCT_MODE_PR_SELECT_PR0;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/* Load the pre-load register 0 */
 		s526_gpct_write(dev, chan, data[2]);
 
 		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, dev->iobase + S526_GPCT_MODE_REG(chan));
+		val = data[1] & 0xffff;
+		/* Select PR1 */
+		val &= ~S526_GPCT_MODE_PR_SELECT_MASK;
+		val |= S526_GPCT_MODE_PR_SELECT_PR1;
+		outw(val, dev->iobase + S526_GPCT_MODE_REG(chan));
 
 		/* Load the pre-load register 1 */
 		s526_gpct_write(dev, chan, data[3]);
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 75040daa40ce..72f0aaa6911f 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -934,7 +934,7 @@ static void cls_flush_uart_write(struct channel_t *ch)
 
 	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT),
 	       &ch->ch_cls_uart->isr_fcr);
-	udelay(10);
+	usleep_range(10, 20);
 
 	ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
 }
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 8106f5234bf5..39c76e78e56a 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1108,9 +1108,9 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
 	 * On the other hand, if the UART IS in FIFO mode, then ask
 	 * the UART to give us an approximation of data it has RX'ed.
 	 */
-	if (!(ch->ch_flags & CH_FIFO_ENABLED))
+	if (!(ch->ch_flags & CH_FIFO_ENABLED)) {
 		total = 0;
-	else {
+	} else {
 		total = readb(&ch->ch_neo_uart->rfifo);
 
 		/*
@@ -1628,7 +1628,7 @@ static void neo_uart_init(struct channel_t *ch)
 
 	/* Clear out UART and FIFO */
 	readb(&ch->ch_neo_uart->txrx);
-	writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr);
+	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr);
 	readb(&ch->ch_neo_uart->lsr);
 	readb(&ch->ch_neo_uart->msr);
 
@@ -1779,8 +1779,8 @@ static void neo_vpd(struct dgnc_board *brd)
 	/* Store the VPD into our buffer */
 	for (i = 0; i < NEO_VPD_IMAGESIZE; i++) {
 		a = neo_read_eeprom(brd->re_map_membase, i);
-		brd->vpd[i*2] = a & 0xff;
-		brd->vpd[(i*2)+1] = (a >> 8) & 0xff;
+		brd->vpd[i * 2] = a & 0xff;
+		brd->vpd[(i * 2) + 1] = (a >> 8) & 0xff;
 	}
 
 	if  (((brd->vpd[0x08] != 0x82)	   /* long resource name tag */
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 48e4b90578c1..b79eab084c02 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -448,7 +448,7 @@ void dgnc_tty_uninit(struct dgnc_board *brd)
  *	dgnc_wmove - Write data to transmit queue.
  *
  *		ch	- Pointer to channel structure.
- *		buf	- Poiter to characters to be moved.
+ *		buf	- Pointer to characters to be moved.
  *		n	- Number of characters to move.
  *
  *=======================================================================*/
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
index f76de82908d3..95272f4765fc 100644
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ b/drivers/staging/dgnc/dgnc_utils.c
@@ -1,7 +1,6 @@
 #include <linux/tty.h>
 #include <linux/sched.h>
 #include "dgnc_utils.h"
-#include "digi.h"
 
 /*
  * dgnc_ms_sleep()
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 4e6c16af40fc..beb9411658ba 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -823,7 +823,7 @@ static int _nbu2ss_out_dma(
 	u32		length
 )
 {
-	u8		*pBuffer;
+	dma_addr_t	pBuffer;
 	u32		mpkt;
 	u32		lmpkt;
 	u32		dmacnt;
@@ -836,7 +836,7 @@ static int _nbu2ss_out_dma(
 		return 1;		/* DMA is forwarded */
 
 	req->dma_flag = TRUE;
-	pBuffer = (u8 *)req->req.dma;
+	pBuffer = req->req.dma;
 	pBuffer += req->req.actual;
 
 	/* DMA Address */
@@ -1034,7 +1034,7 @@ static int _nbu2ss_in_dma(
 	u32		length
 )
 {
-	u8		*pBuffer;
+	dma_addr_t	pBuffer;
 	u32		mpkt;		/* MaxPacketSize */
 	u32		lmpkt;		/* Last Packet Data Size */
 	u32		dmacnt;		/* IN Data Size */
@@ -1080,7 +1080,7 @@ static int _nbu2ss_in_dma(
 	_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR2, data);
 
 	/* Address setting */
-	pBuffer = (u8 *)req->req.dma;
+	pBuffer = req->req.dma;
 	pBuffer += req->req.actual;
 	_nbu2ss_writel(&preg->EP_DCR[num].EP_TADR, (u32)pBuffer);
 
@@ -1285,11 +1285,7 @@ static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep)
 	bool	bflag = FALSE;
 	struct nbu2ss_req *req;
 
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
+	req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
 	if (!req)
 		return;
 
@@ -1784,11 +1780,7 @@ static inline int _nbu2ss_ep0_in_data_stage(struct nbu2ss_udc *udc)
 	struct nbu2ss_req	*req;
 	struct nbu2ss_ep	*ep = &udc->ep[0];
 
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
+	req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
 	if (!req)
 		req = &udc->ep0_req;
 
@@ -1811,11 +1803,7 @@ static inline int _nbu2ss_ep0_out_data_stage(struct nbu2ss_udc *udc)
 	struct nbu2ss_req	*req;
 	struct nbu2ss_ep	*ep = &udc->ep[0];
 
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
+	req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
 	if (!req)
 		req = &udc->ep0_req;
 
@@ -1838,11 +1826,7 @@ static inline int _nbu2ss_ep0_status_stage(struct nbu2ss_udc *udc)
 	struct nbu2ss_req	*req;
 	struct nbu2ss_ep	*ep = &udc->ep[0];
 
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
+	req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
 	if (!req) {
 		req = &udc->ep0_req;
 		if (req->req.complete)
@@ -2145,11 +2129,7 @@ static inline void _nbu2ss_epn_int(struct nbu2ss_udc *udc, u32 epnum)
 	/* Interrupt Clear */
 	_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_STATUS, ~(u32)status);
 
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
+	req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
 	if (!req) {
 		/* pr_warn("=== %s(%d) req == NULL\n", __func__, epnum); */
 		return;
@@ -2728,7 +2708,7 @@ static int nbu2ss_ep_queue(
 	spin_lock_irqsave(&udc->lock, flags);
 
 #ifdef USE_DMA
-	if ((u32)req->req.buf & 0x3)
+	if ((uintptr_t)req->req.buf & 0x3)
 		req->unaligned = TRUE;
 	else
 		req->unaligned = FALSE;
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index b3ea4bb54e2c..b676c486cb18 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -893,11 +893,10 @@ static void fwserial_destroy(struct kref *kref)
 	kfree(serial);
 }
 
-void fwtty_port_put(struct fwtty_port *port)
+static void fwtty_port_put(struct fwtty_port *port)
 {
 	kref_put(&port->serial->kref, fwserial_destroy);
 }
-EXPORT_SYMBOL(fwtty_port_put);
 
 static void fwtty_port_dtr_rts(struct tty_port *tty_port, int on)
 {
diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h
index 787aa4f3a41b..e13fe33a6897 100644
--- a/drivers/staging/fwserial/fwserial.h
+++ b/drivers/staging/fwserial/fwserial.h
@@ -342,16 +342,6 @@ static const char loop_dev_name[] = "fwloop";
 extern struct tty_driver *fwtty_driver;
 
 struct fwtty_port *fwtty_port_get(unsigned index);
-void fwtty_port_put(struct fwtty_port *port);
-
-static inline void fwtty_bind_console(struct fwtty_port *port,
-				      struct fwconsole_ops *fwcon_ops,
-				      void *data)
-{
-	port->con_data = data;
-	port->fwcon_ops = fwcon_ops;
-}
-
 /*
  * Returns the max send async payload size in bytes based on the unit device
  * link speed. Self-limiting asynchronous bandwidth (via reducing the payload)
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index 79de678807cc..17d148f6e02c 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -555,7 +555,7 @@ int gdm_lte_event_init(void)
 void gdm_lte_event_exit(void)
 {
 	if (lte_event.sock && --lte_event.ref_cnt == 0) {
-		netlink_exit(lte_event.sock);
+		sock_release(lte_event.sock->sk_socket);
 		lte_event.sock = NULL;
 	}
 }
diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
index e2c0f228f369..eb7e2523c354 100644
--- a/drivers/staging/gdm724x/gdm_tty.c
+++ b/drivers/staging/gdm724x/gdm_tty.c
@@ -64,7 +64,7 @@ static void gdm_port_destruct(struct tty_port *port)
 	kfree(gdm);
 }
 
-static struct tty_port_operations gdm_port_ops = {
+static const struct tty_port_operations gdm_port_ops = {
 	.destruct = gdm_port_destruct,
 };
 
diff --git a/drivers/staging/gdm724x/netlink_k.c b/drivers/staging/gdm724x/netlink_k.c
index 92254fdaae1e..9d8347769e88 100644
--- a/drivers/staging/gdm724x/netlink_k.c
+++ b/drivers/staging/gdm724x/netlink_k.c
@@ -107,11 +107,6 @@ struct sock *netlink_init(int unit,
 	return sock;
 }
 
-void netlink_exit(struct sock *sock)
-{
-	sock_release(sock->sk_socket);
-}
-
 int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
 {
 	static u32 seq;
diff --git a/drivers/staging/gdm724x/netlink_k.h b/drivers/staging/gdm724x/netlink_k.h
index 589486d76714..7cf979b3f826 100644
--- a/drivers/staging/gdm724x/netlink_k.h
+++ b/drivers/staging/gdm724x/netlink_k.h
@@ -19,7 +19,6 @@
 
 struct sock *netlink_init(int unit,
 	void (*cb)(struct net_device *dev, u16 type, void *msg, int len));
-void netlink_exit(struct sock *sock);
 int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len);
 
 #endif /* _NETLINK_K_H_ */
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
index 81feffa5784a..cad347a05d18 100644
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -101,7 +101,7 @@ void gdm_qos_init(void *nic_ptr)
 	}
 
 	qcb->qos_list_cnt = 0;
-	qcb->qos_null_idx = QOS_MAX-1;
+	qcb->qos_null_idx = QOS_MAX - 1;
 	qcb->qos_limit_size = 255;
 
 	spin_lock_init(&qcb->qos_lock);
@@ -128,7 +128,7 @@ void gdm_qos_release_list(void *nic_ptr)
 	}
 
 	qcb->qos_list_cnt = 0;
-	qcb->qos_null_idx = QOS_MAX-1;
+	qcb->qos_null_idx = QOS_MAX - 1;
 
 	for (i = 0; i < QOS_MAX; i++) {
 		list_for_each_entry_safe(entry, n, &qcb->qos_list[i], list) {
@@ -143,18 +143,18 @@ static int chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *stream, u8 *port)
 {
 	int i;
 
-	if (csr->classifier_rule_en&IPTYPEOFSERVICE) {
+	if (csr->classifier_rule_en & IPTYPEOFSERVICE) {
 		if (((stream[1] & csr->ip2s_mask) < csr->ip2s_lo) ||
 		    ((stream[1] & csr->ip2s_mask) > csr->ip2s_hi))
 			return 1;
 	}
 
-	if (csr->classifier_rule_en&PROTOCOL) {
+	if (csr->classifier_rule_en & PROTOCOL) {
 		if (stream[9] != csr->protocol)
 			return 1;
 	}
 
-	if (csr->classifier_rule_en&IPMASKEDSRCADDRESS) {
+	if (csr->classifier_rule_en & IPMASKEDSRCADDRESS) {
 		for (i = 0; i < 4; i++) {
 			if ((stream[12 + i] & csr->ipsrc_addrmask[i]) !=
 			(csr->ipsrc_addr[i] & csr->ipsrc_addrmask[i]))
@@ -162,7 +162,7 @@ static int chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *stream, u8 *port)
 		}
 	}
 
-	if (csr->classifier_rule_en&IPMASKEDDSTADDRESS) {
+	if (csr->classifier_rule_en & IPMASKEDDSTADDRESS) {
 		for (i = 0; i < 4; i++) {
 			if ((stream[16 + i] & csr->ipdst_addrmask[i]) !=
 			(csr->ipdst_addr[i] & csr->ipdst_addrmask[i]))
@@ -170,14 +170,14 @@ static int chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *stream, u8 *port)
 		}
 	}
 
-	if (csr->classifier_rule_en&PROTOCOLSRCPORTRANGE) {
-		i = ((port[0]<<8)&0xff00)+port[1];
+	if (csr->classifier_rule_en & PROTOCOLSRCPORTRANGE) {
+		i = ((port[0] << 8) & 0xff00) + port[1];
 		if ((i < csr->srcport_lo) || (i > csr->srcport_hi))
 			return 1;
 	}
 
-	if (csr->classifier_rule_en&PROTOCOLDSTPORTRANGE) {
-		i = ((port[2]<<8)&0xff00)+port[3];
+	if (csr->classifier_rule_en & PROTOCOLDSTPORTRANGE) {
+		i = ((port[2] << 8) & 0xff00) + port[3];
 		if ((i < csr->dstport_lo) || (i > csr->dstport_hi))
 			return 1;
 	}
@@ -193,7 +193,7 @@ static int get_qos_index(struct nic *nic, u8 *iph, u8 *tcpudph)
 	if (!iph || !tcpudph)
 		return -1;
 
-	ip_ver = (iph[0]>>4)&0xf;
+	ip_ver = (iph[0] >> 4) & 0xf;
 
 	if (ip_ver != 4)
 		return -1;
@@ -342,17 +342,17 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 	if (sub_cmd_evt == QOS_REPORT) {
 		spin_lock_irqsave(&qcb->qos_lock, flags);
 		for (i = 0; i < qcb->qos_list_cnt; i++) {
-			sfid = ((buf[(i*5)+6]<<24)&0xff000000);
-			sfid += ((buf[(i*5)+7]<<16)&0xff0000);
-			sfid += ((buf[(i*5)+8]<<8)&0xff00);
-			sfid += (buf[(i*5)+9]);
+			sfid = ((buf[(i*5) + 6] << 24) & 0xff000000);
+			sfid += ((buf[(i*5) + 7] << 16) & 0xff0000);
+			sfid += ((buf[(i*5) + 8] << 8) & 0xff00);
+			sfid += (buf[(i*5) + 9]);
 			index = get_csr(qcb, sfid, 0);
 			if (index == -1) {
 				spin_unlock_irqrestore(&qcb->qos_lock, flags);
 				netdev_err(nic->netdev, "QoS ERROR: No SF\n");
 				return;
 			}
-			qcb->csr[index].qos_buf_count = buf[(i*5)+10];
+			qcb->csr[index].qos_buf_count = buf[(i*5) + 10];
 		}
 
 		extract_qos_list(nic, &send_list);
@@ -363,9 +363,9 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 
 	/* sub_cmd_evt == QOS_ADD || sub_cmd_evt == QOS_CHANG_DEL */
 	pos = 6;
-	sfid = ((buf[pos++]<<24)&0xff000000);
-	sfid += ((buf[pos++]<<16)&0xff0000);
-	sfid += ((buf[pos++]<<8)&0xff00);
+	sfid = ((buf[pos++] << 24) & 0xff000000);
+	sfid += ((buf[pos++] << 16) & 0xff0000);
+	sfid += ((buf[pos++] << 8) & 0xff00);
 	sfid += (buf[pos++]);
 
 	index = get_csr(qcb, sfid, 1);
@@ -382,7 +382,7 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 
 		spin_lock_irqsave(&qcb->qos_lock, flags);
 		qcb->csr[index].sfid = sfid;
-		qcb->csr[index].classifier_rule_en = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].classifier_rule_en = ((buf[pos++] << 8) & 0xff00);
 		qcb->csr[index].classifier_rule_en += buf[pos++];
 		if (qcb->csr[index].classifier_rule_en == 0)
 			qcb->qos_null_idx = index;
@@ -406,16 +406,16 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 		qcb->csr[index].ipdst_addr[1] = buf[pos++];
 		qcb->csr[index].ipdst_addr[2] = buf[pos++];
 		qcb->csr[index].ipdst_addr[3] = buf[pos++];
-		qcb->csr[index].srcport_lo = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].srcport_lo = ((buf[pos++] << 8) & 0xff00);
 		qcb->csr[index].srcport_lo += buf[pos++];
-		qcb->csr[index].srcport_hi = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].srcport_hi = ((buf[pos++] << 8) & 0xff00);
 		qcb->csr[index].srcport_hi += buf[pos++];
-		qcb->csr[index].dstport_lo = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].dstport_lo = ((buf[pos++] << 8) & 0xff00);
 		qcb->csr[index].dstport_lo += buf[pos++];
-		qcb->csr[index].dstport_hi = ((buf[pos++]<<8)&0xff00);
+		qcb->csr[index].dstport_hi = ((buf[pos++] << 8) & 0xff00);
 		qcb->csr[index].dstport_hi += buf[pos++];
 
-		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
+		qcb->qos_limit_size = 254 / qcb->qos_list_cnt;
 		spin_unlock_irqrestore(&qcb->qos_lock, flags);
 	} else if (sub_cmd_evt == QOS_CHANGE_DEL) {
 		netdev_dbg(nic->netdev, "QOS_CHANGE_DEL SFID = 0x%x, index=%d\n",
@@ -426,7 +426,7 @@ void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
 		spin_lock_irqsave(&qcb->qos_lock, flags);
 		qcb->csr[index].enabled = false;
 		qcb->qos_list_cnt--;
-		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
+		qcb->qos_limit_size = 254 / qcb->qos_list_cnt;
 
 		list_for_each_entry_safe(entry, n, &qcb->qos_list[index],
 					 list) {
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
index b0521da3c793..1f5a087723ba 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.c
+++ b/drivers/staging/gdm72xx/gdm_sdio.c
@@ -36,7 +36,7 @@
 #define RX_BUF_SIZE	(25*1024)
 
 #define TX_HZ		2000
-#define TX_INTERVAL	(1000000/TX_HZ)
+#define TX_INTERVAL	(NSEC_PER_SEC/TX_HZ)
 
 static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
 {
@@ -303,7 +303,7 @@ static void send_sdu(struct sdio_func *func, struct tx_cxt *tx)
 		put_tx_struct(t->tx_cxt, t);
 	}
 
-	do_gettimeofday(&tx->sdu_stamp);
+	tx->sdu_stamp = ktime_get();
 	spin_unlock_irqrestore(&tx->lock, flags);
 }
 
@@ -330,7 +330,7 @@ static void do_tx(struct work_struct *work)
 	struct sdio_func *func = sdev->func;
 	struct tx_cxt *tx = &sdev->tx;
 	struct sdio_tx *t = NULL;
-	struct timeval now, *before;
+	ktime_t now, before;
 	int is_sdu = 0;
 	long diff;
 	unsigned long flags;
@@ -346,11 +346,10 @@ static void do_tx(struct work_struct *work)
 		list_del(&t->list);
 		is_sdu = 0;
 	} else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
-		do_gettimeofday(&now);
-		before = &tx->sdu_stamp;
+		now = ktime_get();
+		before = tx->sdu_stamp;
 
-		diff = (now.tv_sec - before->tv_sec) * 1000000 +
-			(now.tv_usec - before->tv_usec);
+		diff = ktime_to_ns(ktime_sub(now, before));
 		if (diff >= 0 && diff < TX_INTERVAL) {
 			schedule_work(&sdev->ws);
 			spin_unlock_irqrestore(&tx->lock, flags);
diff --git a/drivers/staging/gdm72xx/gdm_sdio.h b/drivers/staging/gdm72xx/gdm_sdio.h
index 77ad9d686f8e..aa7dad22a219 100644
--- a/drivers/staging/gdm72xx/gdm_sdio.h
+++ b/drivers/staging/gdm72xx/gdm_sdio.h
@@ -15,7 +15,7 @@
 #define __GDM72XX_GDM_SDIO_H__
 
 #include <linux/types.h>
-#include <linux/time.h>
+#include <linux/ktime.h>
 
 #define MAX_NR_SDU_BUF  64
 
@@ -32,7 +32,7 @@ struct tx_cxt {
 	struct list_head	free_list;
 	struct list_head	sdu_list;
 	struct list_head	hci_list;
-	struct timeval		sdu_stamp;
+	ktime_t			sdu_stamp;
 	u8			*sdu_buf;
 	spinlock_t		lock;
 	int			can_send;
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index d9ddced96e19..ba03f9386567 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -84,11 +84,6 @@ static inline struct evt_entry *alloc_event_entry(void)
 	return kmalloc(sizeof(struct evt_entry), GFP_ATOMIC);
 }
 
-static inline void free_event_entry(struct evt_entry *e)
-{
-	kfree(e);
-}
-
 static struct evt_entry *get_event_entry(void)
 {
 	struct evt_entry *e;
@@ -180,11 +175,11 @@ static void gdm_wimax_event_exit(void)
 
 		list_for_each_entry_safe(e, temp, &wm_event.evtq, list) {
 			list_del(&e->list);
-			free_event_entry(e);
+			kfree(e);
 		}
 		list_for_each_entry_safe(e, temp, &wm_event.freeq, list) {
 			list_del(&e->list);
-			free_event_entry(e);
+			kfree(e);
 		}
 
 		spin_unlock_irqrestore(&wm_event.evt_lock, flags);
@@ -368,7 +363,7 @@ static void kdelete(void **buf)
 	}
 }
 
-static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
+static int gdm_wimax_ioctl_get_data(struct udata_s *dst, struct data_s *src)
 {
 	int size;
 
@@ -384,7 +379,7 @@ static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
 	return 0;
 }
 
-static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src)
+static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct udata_s *src)
 {
 	if (!src->size) {
 		dst->size = 0;
@@ -460,6 +455,7 @@ static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	struct wm_req_s *req = (struct wm_req_s *)ifr;
 	struct nic *nic = netdev_priv(dev);
 	int ret;
+	struct fsm_s fsm_buf;
 
 	if (cmd != SIOCWMIOCTL)
 		return -EOPNOTSUPP;
@@ -482,8 +478,11 @@ static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 				/* NOTE: gdm_update_fsm should be called
 				 * before gdm_wimax_ioctl_set_data is called.
 				 */
-				gdm_update_fsm(dev,
-					       req->data.buf);
+				if (copy_from_user(&fsm_buf, req->data.buf,
+						   sizeof(struct fsm_s)))
+					return -EFAULT;
+
+				gdm_update_fsm(dev, &fsm_buf);
 			}
 			ret = gdm_wimax_ioctl_set_data(
 				&nic->sdk_data[req->data_id], &req->data);
diff --git a/drivers/staging/gdm72xx/wm_ioctl.h b/drivers/staging/gdm72xx/wm_ioctl.h
index ed8f649c0042..631cb1d23c7e 100644
--- a/drivers/staging/gdm72xx/wm_ioctl.h
+++ b/drivers/staging/gdm72xx/wm_ioctl.h
@@ -78,13 +78,18 @@ struct data_s {
 	void	*buf;
 };
 
+struct udata_s {
+	int		size;
+	void __user	*buf;
+};
+
 struct wm_req_s {
 	union {
 		char ifrn_name[IFNAMSIZ];
 	} ifr_ifrn;
 	unsigned short	cmd;
 	unsigned short	data_id;
-	struct data_s	data;
+	struct udata_s	data;
 
 /* NOTE: sizeof(struct wm_req_s) must be less than sizeof(struct ifreq). */
 };
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 9d7f0004d2d7..0e044cb0def8 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -17,33 +17,4 @@ source "drivers/staging/iio/meter/Kconfig"
 source "drivers/staging/iio/resolver/Kconfig"
 source "drivers/staging/iio/trigger/Kconfig"
 
-config IIO_DUMMY_EVGEN
-	tristate
-	select IRQ_WORK
-
-config IIO_SIMPLE_DUMMY
-       tristate "An example driver with no hardware requirements"
-       help
-	 Driver intended mainly as documentation for how to write
-	 a driver. May also be useful for testing userspace code
-	 without hardware.
-
-if IIO_SIMPLE_DUMMY
-
-config IIO_SIMPLE_DUMMY_EVENTS
-       bool "Event generation support"
-       select IIO_DUMMY_EVGEN
-       help
-         Add some dummy events to the simple dummy driver.
-
-config IIO_SIMPLE_DUMMY_BUFFER
-	bool "Buffered capture support"
-	select IIO_BUFFER
-	select IIO_TRIGGER
-	select IIO_KFIFO_BUF
-	help
-	  Add buffered data capture to the simple dummy driver.
-
-endif # IIO_SIMPLE_DUMMY
-
 endmenu
diff --git a/drivers/staging/iio/Makefile b/drivers/staging/iio/Makefile
index d87106135b27..3e616b4437f5 100644
--- a/drivers/staging/iio/Makefile
+++ b/drivers/staging/iio/Makefile
@@ -2,13 +2,6 @@
 # Makefile for the industrial I/O core.
 #
 
-obj-$(CONFIG_IIO_SIMPLE_DUMMY) += iio_dummy.o
-iio_dummy-y := iio_simple_dummy.o
-iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_EVENTS) += iio_simple_dummy_events.o
-iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_BUFFER) += iio_simple_dummy_buffer.o
-
-obj-$(CONFIG_IIO_DUMMY_EVGEN) += iio_dummy_evgen.o
-
 obj-y += accel/
 obj-y += adc/
 obj-y += addac/
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 20b878d35ea2..1920dc60cf3d 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -48,7 +48,7 @@ static int sca3000_read_data(struct sca3000_state *st,
 		}
 	};
 	*rx_p = kmalloc(len, GFP_KERNEL);
-	if (*rx_p == NULL) {
+	if (!*rx_p) {
 		ret = -ENOMEM;
 		goto error_ret;
 	}
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index bb40f3728742..92211039ffa9 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -609,7 +609,7 @@ static const struct iio_chan_spec ad7192_channels[] = {
 
 static int ad7192_probe(struct spi_device *spi)
 {
-	const struct ad7192_platform_data *pdata = spi->dev.platform_data;
+	const struct ad7192_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct ad7192_state *st;
 	struct iio_dev *indio_dev;
 	int ret, voltage_uv = 0;
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index 35acb1a4669b..f45ebedb7a05 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -833,7 +833,7 @@ static const struct ad7280_platform_data ad7793_default_pdata = {
 
 static int ad7280_probe(struct spi_device *spi)
 {
-	const struct ad7280_platform_data *pdata = spi->dev.platform_data;
+	const struct ad7280_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct ad7280_state *st;
 	int ret;
 	const unsigned short tACQ_ns[4] = {465, 1010, 1460, 1890};
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index 3abc7789237f..1439cfdbb09c 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -15,15 +15,13 @@
 #include <linux/regulator/consumer.h>
 #include <linux/err.h>
 #include <linux/sched.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/iio/adc/ad_sigma_delta.h>
 
-#include "ad7780.h"
-
 #define AD7780_RDY	BIT(7)
 #define AD7780_FILTER	BIT(6)
 #define AD7780_ERR	BIT(5)
@@ -42,7 +40,7 @@ struct ad7780_chip_info {
 struct ad7780_state {
 	const struct ad7780_chip_info	*chip_info;
 	struct regulator		*reg;
-	int				powerdown_gpio;
+	struct gpio_desc		*powerdown_gpio;
 	unsigned int	gain;
 	u16				int_vref_mv;
 
@@ -77,8 +75,7 @@ static int ad7780_set_mode(struct ad_sigma_delta *sigma_delta,
 		break;
 	}
 
-	if (gpio_is_valid(st->powerdown_gpio))
-		gpio_set_value(st->powerdown_gpio, val);
+	gpiod_set_value(st->powerdown_gpio, val);
 
 	return 0;
 }
@@ -163,7 +160,6 @@ static const struct iio_info ad7780_info = {
 
 static int ad7780_probe(struct spi_device *spi)
 {
-	struct ad7780_platform_data *pdata = spi->dev.platform_data;
 	struct ad7780_state *st;
 	struct iio_dev *indio_dev;
 	int ret, voltage_uv = 0;
@@ -189,12 +185,10 @@ static int ad7780_probe(struct spi_device *spi)
 	st->chip_info =
 		&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-	if (pdata && pdata->vref_mv)
-		st->int_vref_mv = pdata->vref_mv;
-	else if (voltage_uv)
+	if (voltage_uv)
 		st->int_vref_mv = voltage_uv / 1000;
 	else
-		dev_warn(&spi->dev, "reference voltage unspecified\n");
+		dev_warn(&spi->dev, "Reference voltage unspecified\n");
 
 	spi_set_drvdata(spi, indio_dev);
 
@@ -205,18 +199,14 @@ static int ad7780_probe(struct spi_device *spi)
 	indio_dev->num_channels = 1;
 	indio_dev->info = &ad7780_info;
 
-	if (pdata && gpio_is_valid(pdata->gpio_pdrst)) {
-		ret = devm_gpio_request_one(&spi->dev,
-					    pdata->gpio_pdrst,
-					    GPIOF_OUT_INIT_LOW,
-					    "AD7780 /PDRST");
-		if (ret) {
-			dev_err(&spi->dev, "failed to request GPIO PDRST\n");
-			goto error_disable_reg;
-		}
-		st->powerdown_gpio = pdata->gpio_pdrst;
-	} else {
-		st->powerdown_gpio = -1;
+	st->powerdown_gpio = devm_gpiod_get_optional(&spi->dev,
+						     "powerdown",
+						     GPIOD_OUT_LOW);
+	if (IS_ERR(st->powerdown_gpio)) {
+		ret = PTR_ERR(st->powerdown_gpio);
+		dev_err(&spi->dev, "Failed to request powerdown GPIO: %d\n",
+			ret);
+		goto error_disable_reg;
 	}
 
 	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
diff --git a/drivers/staging/iio/adc/ad7780.h b/drivers/staging/iio/adc/ad7780.h
deleted file mode 100644
index 67e511c3d6f0..000000000000
--- a/drivers/staging/iio/adc/ad7780.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * AD7780/AD7781 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-#ifndef IIO_ADC_AD7780_H_
-#define IIO_ADC_AD7780_H_
-
-/*
- * TODO: struct ad7780_platform_data needs to go into include/linux/iio
- */
-
-/* NOTE:
- * The AD7780 doesn't feature a dedicated SPI chip select, in addition it
- * features a dual use data out ready DOUT/RDY output.
- * In order to avoid contentions on the SPI bus, it's therefore necessary
- * to use spi bus locking combined with a dedicated GPIO to control the
- * power down reset signal of the AD7780.
- *
- * The DOUT/RDY output must also be wired to an interrupt capable GPIO.
- */
-
-struct ad7780_platform_data {
-	u16				vref_mv;
-	int				gpio_pdrst;
-};
-
-#endif /* IIO_ADC_AD7780_H_ */
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index c8e156646528..22260512cf01 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -345,7 +345,7 @@ static int ad7816_probe(struct spi_device *spi_dev)
 {
 	struct ad7816_chip_info *chip;
 	struct iio_dev *indio_dev;
-	unsigned short *pins = spi_dev->dev.platform_data;
+	unsigned short *pins = dev_get_platdata(&spi_dev->dev);
 	int ret = 0;
 	int i;
 
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index d997d9c74ca8..bb1f15224ac8 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -319,12 +319,12 @@ struct mxs_lradc {
 #define	LRADC_CH_VALUE_OFFSET			0
 
 #define	LRADC_DELAY(n)				(0xd0 + (0x10 * (n)))
-#define	LRADC_DELAY_TRIGGER_LRADCS_MASK		(0xff << 24)
+#define	LRADC_DELAY_TRIGGER_LRADCS_MASK		(0xffUL << 24)
 #define	LRADC_DELAY_TRIGGER_LRADCS_OFFSET	24
 #define	LRADC_DELAY_TRIGGER(x) \
 				(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
 				LRADC_DELAY_TRIGGER_LRADCS_MASK)
-#define	LRADC_DELAY_KICK			(1 << 20)
+#define	LRADC_DELAY_KICK			BIT(20)
 #define	LRADC_DELAY_TRIGGER_DELAYS_MASK		(0xf << 16)
 #define	LRADC_DELAY_TRIGGER_DELAYS_OFFSET	16
 #define	LRADC_DELAY_TRIGGER_DELAYS(x) \
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 2b65faa6296a..18b27a1984b2 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -201,7 +201,7 @@ static const struct iio_info ad9832_info = {
 
 static int ad9832_probe(struct spi_device *spi)
 {
-	struct ad9832_platform_data *pdata = spi->dev.platform_data;
+	struct ad9832_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct iio_dev *indio_dev;
 	struct ad9832_state *st;
 	struct regulator *reg;
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index 6464f2cbe94b..6366216e4f37 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -318,7 +318,7 @@ static const struct iio_info ad9833_info = {
 
 static int ad9834_probe(struct spi_device *spi)
 {
-	struct ad9834_platform_data *pdata = spi->dev.platform_data;
+	struct ad9834_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct ad9834_state *st;
 	struct iio_dev *indio_dev;
 	struct regulator *reg;
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index 9dfd04855a1b..5b1c1650a0e4 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -1898,7 +1898,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 	mutex_init(&chip->prox_mutex);
 
 	chip->tsl2x7x_chip_status = TSL2X7X_CHIP_UNKNOWN;
-	chip->pdata = clientp->dev.platform_data;
+	chip->pdata = dev_get_platdata(&clientp->dev);
 	chip->id = id->driver_data;
 	chip->chip_info =
 		&tsl2x7x_chip_info_tbl[device_channel_config[id->driver_data]];
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
index 4d74e8af5088..0d8a91ee5ffc 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -42,13 +42,6 @@
 
 #include "curproc.h"
 
-static inline int __is_po2(unsigned long long val)
-{
-	return !(val & (val - 1));
-}
-
-#define IS_PO2(val) __is_po2((unsigned long long)(val))
-
 #define LOWEST_BIT_SET(x)       ((x) & ~((x) - 1))
 
 /*
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
index 787867847483..1530b0458a61 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
@@ -22,7 +22,8 @@
  */
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
+ *
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 70b8b29e831c..c3f2332fa043 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,6 +41,9 @@
 
 #ifndef __LIBCFS_HASH_H__
 #define __LIBCFS_HASH_H__
+
+#include <linux/hash.h>
+
 /*
  * Knuth recommends primes in approximately golden ratio to the maximum
  * integer representable by a machine word for multiplicative hashing.
@@ -56,22 +59,13 @@
 /*  2^63 + 2^61 - 2^57 + 2^54 - 2^51 - 2^18 + 1 */
 #define CFS_GOLDEN_RATIO_PRIME_64 0x9e37fffffffc0001ULL
 
-/*
- * Ideally we would use HAVE_HASH_LONG for this, but on linux we configure
- * the linux kernel and user space at the same time, so we need to differentiate
- * between them explicitly. If this is not needed on other architectures, then
- * we'll need to move the functions to architecture specific headers.
- */
-
-#include <linux/hash.h>
-
 /** disable debug */
-#define CFS_HASH_DEBUG_NONE	 0
+#define CFS_HASH_DEBUG_NONE	0
 /** record hash depth and output to console when it's too deep,
  *  computing overhead is low but consume more memory */
-#define CFS_HASH_DEBUG_1	    1
+#define CFS_HASH_DEBUG_1	1
 /** expensive, check key validation */
-#define CFS_HASH_DEBUG_2	    2
+#define CFS_HASH_DEBUG_2	2
 
 #define CFS_HASH_DEBUG_LEVEL	CFS_HASH_DEBUG_NONE
 
@@ -108,16 +102,18 @@ struct cfs_hash_bucket {
  * cfs_hash bucket descriptor, it's normally in stack of caller
  */
 struct cfs_hash_bd {
-	struct cfs_hash_bucket	*bd_bucket;      /**< address of bucket */
-	unsigned int		bd_offset;      /**< offset in bucket */
+	/* address of bucket */
+	struct cfs_hash_bucket	*bd_bucket;
+	/* offset in bucket */
+	unsigned int		 bd_offset;
 };
 
-#define CFS_HASH_NAME_LEN	   16      /**< default name length */
-#define CFS_HASH_BIGNAME_LEN	64      /**< bigname for param tree */
+#define CFS_HASH_NAME_LEN	16	/**< default name length */
+#define CFS_HASH_BIGNAME_LEN	64	/**< bigname for param tree */
 
-#define CFS_HASH_BKT_BITS	   3       /**< default bits of bucket */
-#define CFS_HASH_BITS_MAX	   30      /**< max bits of bucket */
-#define CFS_HASH_BITS_MIN	   CFS_HASH_BKT_BITS
+#define CFS_HASH_BKT_BITS	3	/**< default bits of bucket */
+#define CFS_HASH_BITS_MAX	30	/**< max bits of bucket */
+#define CFS_HASH_BITS_MIN	CFS_HASH_BKT_BITS
 
 /**
  * common hash attributes.
@@ -133,41 +129,41 @@ enum cfs_hash_tag {
 	 */
 	CFS_HASH_NO_LOCK	= 1 << 0,
 	/** no bucket lock, use one spinlock to protect the whole hash */
-	CFS_HASH_NO_BKTLOCK     = 1 << 1,
+	CFS_HASH_NO_BKTLOCK	= 1 << 1,
 	/** rwlock to protect bucket */
-	CFS_HASH_RW_BKTLOCK     = 1 << 2,
+	CFS_HASH_RW_BKTLOCK	= 1 << 2,
 	/** spinlock to protect bucket */
-	CFS_HASH_SPIN_BKTLOCK   = 1 << 3,
+	CFS_HASH_SPIN_BKTLOCK	= 1 << 3,
 	/** always add new item to tail */
-	CFS_HASH_ADD_TAIL       = 1 << 4,
+	CFS_HASH_ADD_TAIL	= 1 << 4,
 	/** hash-table doesn't have refcount on item */
-	CFS_HASH_NO_ITEMREF     = 1 << 5,
+	CFS_HASH_NO_ITEMREF	= 1 << 5,
 	/** big name for param-tree */
 	CFS_HASH_BIGNAME	= 1 << 6,
 	/** track global count */
 	CFS_HASH_COUNTER	= 1 << 7,
 	/** rehash item by new key */
-	CFS_HASH_REHASH_KEY     = 1 << 8,
+	CFS_HASH_REHASH_KEY	= 1 << 8,
 	/** Enable dynamic hash resizing */
-	CFS_HASH_REHASH	 = 1 << 9,
+	CFS_HASH_REHASH		= 1 << 9,
 	/** can shrink hash-size */
-	CFS_HASH_SHRINK	 = 1 << 10,
+	CFS_HASH_SHRINK		= 1 << 10,
 	/** assert hash is empty on exit */
-	CFS_HASH_ASSERT_EMPTY   = 1 << 11,
+	CFS_HASH_ASSERT_EMPTY	= 1 << 11,
 	/** record hlist depth */
-	CFS_HASH_DEPTH	  = 1 << 12,
+	CFS_HASH_DEPTH		= 1 << 12,
 	/**
 	 * rehash is always scheduled in a different thread, so current
 	 * change on hash table is non-blocking
 	 */
-	CFS_HASH_NBLK_CHANGE    = 1 << 13,
+	CFS_HASH_NBLK_CHANGE	= 1 << 13,
 	/** NB, we typed hs_flags as  __u16, please change it
 	 * if you need to extend >=16 flags */
 };
 
 /** most used attributes */
-#define CFS_HASH_DEFAULT       (CFS_HASH_RW_BKTLOCK | \
-				CFS_HASH_COUNTER | CFS_HASH_REHASH)
+#define CFS_HASH_DEFAULT	(CFS_HASH_RW_BKTLOCK | \
+				 CFS_HASH_COUNTER | CFS_HASH_REHASH)
 
 /**
  * cfs_hash is a hash-table implementation for general purpose, it can support:
@@ -211,7 +207,7 @@ enum cfs_hash_tag {
 struct cfs_hash {
 	/** serialize with rehash, or serialize all operations if
 	 * the hash-table has CFS_HASH_NO_BKTLOCK */
-	union cfs_hash_lock		 hs_lock;
+	union cfs_hash_lock		hs_lock;
 	/** hash operations */
 	struct cfs_hash_ops		*hs_ops;
 	/** hash lock operations */
@@ -219,57 +215,57 @@ struct cfs_hash {
 	/** hash list operations */
 	struct cfs_hash_hlist_ops	*hs_hops;
 	/** hash buckets-table */
-	struct cfs_hash_bucket	 **hs_buckets;
+	struct cfs_hash_bucket		**hs_buckets;
 	/** total number of items on this hash-table */
-	atomic_t		hs_count;
+	atomic_t			hs_count;
 	/** hash flags, see cfs_hash_tag for detail */
-	__u16		       hs_flags;
+	__u16				hs_flags;
 	/** # of extra-bytes for bucket, for user saving extended attributes */
-	__u16		       hs_extra_bytes;
+	__u16				hs_extra_bytes;
 	/** wants to iterate */
-	__u8			hs_iterating;
+	__u8				hs_iterating;
 	/** hash-table is dying */
-	__u8			hs_exiting;
+	__u8				hs_exiting;
 	/** current hash bits */
-	__u8			hs_cur_bits;
+	__u8				hs_cur_bits;
 	/** min hash bits */
-	__u8			hs_min_bits;
+	__u8				hs_min_bits;
 	/** max hash bits */
-	__u8			hs_max_bits;
+	__u8				hs_max_bits;
 	/** bits for rehash */
-	__u8			hs_rehash_bits;
+	__u8				hs_rehash_bits;
 	/** bits for each bucket */
-	__u8			hs_bkt_bits;
+	__u8				hs_bkt_bits;
 	/** resize min threshold */
-	__u16		       hs_min_theta;
+	__u16				hs_min_theta;
 	/** resize max threshold */
-	__u16		       hs_max_theta;
+	__u16				hs_max_theta;
 	/** resize count */
-	__u32		       hs_rehash_count;
+	__u32				hs_rehash_count;
 	/** # of iterators (caller of cfs_hash_for_each_*) */
-	__u32		       hs_iterators;
+	__u32				hs_iterators;
 	/** rehash workitem */
-	cfs_workitem_t	      hs_rehash_wi;
+	cfs_workitem_t			hs_rehash_wi;
 	/** refcount on this hash table */
-	atomic_t		hs_refcount;
+	atomic_t			hs_refcount;
 	/** rehash buckets-table */
-	struct cfs_hash_bucket	 **hs_rehash_buckets;
+	struct cfs_hash_bucket		**hs_rehash_buckets;
 #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
 	/** serialize debug members */
 	spinlock_t			hs_dep_lock;
 	/** max depth */
-	unsigned int		hs_dep_max;
+	unsigned int			hs_dep_max;
 	/** id of the deepest bucket */
-	unsigned int		hs_dep_bkt;
+	unsigned int			hs_dep_bkt;
 	/** offset in the deepest bucket */
-	unsigned int		hs_dep_off;
+	unsigned int			hs_dep_off;
 	/** bits when we found the max depth */
-	unsigned int		hs_dep_bits;
+	unsigned int			hs_dep_bits;
 	/** workitem to output max depth */
-	cfs_workitem_t	      hs_dep_wi;
+	cfs_workitem_t			hs_dep_wi;
 #endif
 	/** name of htable */
-	char			hs_name[0];
+	char				hs_name[0];
 };
 
 struct cfs_hash_lock_ops {
@@ -324,11 +320,11 @@ struct cfs_hash_ops {
 };
 
 /** total number of buckets in @hs */
-#define CFS_HASH_NBKT(hs)       \
+#define CFS_HASH_NBKT(hs)	\
 	(1U << ((hs)->hs_cur_bits - (hs)->hs_bkt_bits))
 
 /** total number of buckets in @hs while rehashing */
-#define CFS_HASH_RH_NBKT(hs)    \
+#define CFS_HASH_RH_NBKT(hs)	\
 	(1U << ((hs)->hs_rehash_bits - (hs)->hs_bkt_bits))
 
 /** number of hlist for in bucket */
@@ -433,19 +429,22 @@ cfs_hash_with_nblk_change(struct cfs_hash *hs)
 
 static inline int
 cfs_hash_is_exiting(struct cfs_hash *hs)
-{       /* cfs_hash_destroy is called */
+{
+	/* cfs_hash_destroy is called */
 	return hs->hs_exiting;
 }
 
 static inline int
 cfs_hash_is_rehashing(struct cfs_hash *hs)
-{       /* rehash is launched */
+{
+	/* rehash is launched */
 	return hs->hs_rehash_bits != 0;
 }
 
 static inline int
 cfs_hash_is_iterating(struct cfs_hash *hs)
-{       /* someone is calling cfs_hash_for_each_* */
+{
+	/* someone is calling cfs_hash_for_each_* */
 	return hs->hs_iterating || hs->hs_iterators != 0;
 }
 
@@ -641,13 +640,6 @@ cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 struct hlist_node *
 cfs_hash_bd_peek_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			const void *key);
-struct hlist_node *
-cfs_hash_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode,
-			   int insist_add);
-struct hlist_node *
-cfs_hash_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode);
 
 /**
  * operations on cfs_hash bucket (bd: bucket descriptor),
@@ -758,7 +750,7 @@ static inline void
 cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode)
 {
-	struct cfs_hash_bd   bds[2];
+	struct cfs_hash_bd bds[2];
 
 	cfs_hash_dual_bd_get(hs, cfs_hash_key(hs, hnode), bds);
 	LASSERT(bds[0].bd_bucket == bd->bd_bucket ||
@@ -777,9 +769,9 @@ cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 
 #endif /* CFS_HASH_DEBUG_LEVEL */
 
-#define CFS_HASH_THETA_BITS  10
-#define CFS_HASH_MIN_THETA  (1U << (CFS_HASH_THETA_BITS - 1))
-#define CFS_HASH_MAX_THETA  (1U << (CFS_HASH_THETA_BITS + 1))
+#define CFS_HASH_THETA_BITS	10
+#define CFS_HASH_MIN_THETA	(1U << (CFS_HASH_THETA_BITS - 1))
+#define CFS_HASH_MAX_THETA	(1U << (CFS_HASH_THETA_BITS + 1))
 
 /* Return integer component of theta */
 static inline int __cfs_hash_theta_int(int theta)
@@ -848,20 +840,20 @@ cfs_hash_u64_hash(const __u64 key, unsigned mask)
 }
 
 /** iterate over all buckets in @bds (array of struct cfs_hash_bd) */
-#define cfs_hash_for_each_bd(bds, n, i) \
+#define cfs_hash_for_each_bd(bds, n, i)	\
 	for (i = 0; i < n && (bds)[i].bd_bucket != NULL; i++)
 
 /** iterate over all buckets of @hs */
-#define cfs_hash_for_each_bucket(hs, bd, pos)		   \
-	for (pos = 0;					   \
-	     pos < CFS_HASH_NBKT(hs) &&			 \
+#define cfs_hash_for_each_bucket(hs, bd, pos)			\
+	for (pos = 0;						\
+	     pos < CFS_HASH_NBKT(hs) &&				\
 	     ((bd)->bd_bucket = (hs)->hs_buckets[pos]) != NULL; pos++)
 
 /** iterate over all hlist of bucket @bd */
-#define cfs_hash_bd_for_each_hlist(hs, bd, hlist)	       \
-	for ((bd)->bd_offset = 0;			       \
-	     (bd)->bd_offset < CFS_HASH_BKT_NHLIST(hs) &&       \
-	     (hlist = cfs_hash_bd_hhead(hs, bd)) != NULL;       \
+#define cfs_hash_bd_for_each_hlist(hs, bd, hlist)		\
+	for ((bd)->bd_offset = 0;				\
+	     (bd)->bd_offset < CFS_HASH_BKT_NHLIST(hs) &&	\
+	     (hlist = cfs_hash_bd_hhead(hs, bd)) != NULL;	\
 	     (bd)->bd_offset++)
 
 /* !__LIBCFS__HASH_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
index a989d2666230..41f3d810aea4 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
@@ -91,7 +91,7 @@ typedef int (*libcfs_kkuc_cb_t)(__u32 data, void *cb_arg);
 /* Kernel methods */
 int libcfs_kkuc_msg_put(struct file *fp, void *payload);
 int libcfs_kkuc_group_put(int group, void *payload);
-int libcfs_kkuc_group_add(struct file *fp, int uid, int group,
+int libcfs_kkuc_group_add(struct file *fp, int uid, unsigned int group,
 				 __u32 data);
 int libcfs_kkuc_group_rem(int uid, int group);
 int libcfs_kkuc_group_foreach(int group, libcfs_kkuc_cb_t cb_func,
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
index f0b0423a716b..d6273e143324 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
@@ -185,8 +185,6 @@ int libcfs_debug_cleanup(void);
 int libcfs_debug_clear_buffer(void);
 int libcfs_debug_mark_buffer(const char *text);
 
-void libcfs_debug_set_level(unsigned int debug_level);
-
 /*
  * allocate per-cpu-partition data, returned value is an array of pointers,
  * variable can be indexed by CPU ID.
diff --git a/drivers/staging/lustre/include/linux/lnet/api.h b/drivers/staging/lustre/include/linux/lnet/api.h
index 9493d5e236c5..75285fde15e8 100644
--- a/drivers/staging/lustre/include/linux/lnet/api.h
+++ b/drivers/staging/lustre/include/linux/lnet/api.h
@@ -161,12 +161,6 @@ int LNetEQAlloc(unsigned int       count_in,
 
 int LNetEQFree(lnet_handle_eq_t eventq_in);
 
-int LNetEQGet(lnet_handle_eq_t  eventq_in,
-	      lnet_event_t     *event_out);
-
-int LNetEQWait(lnet_handle_eq_t  eventq_in,
-	       lnet_event_t     *event_out);
-
 int LNetEQPoll(lnet_handle_eq_t *eventqs_in,
 	       int		 neq_in,
 	       int		 timeout_ms,
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index b61d5045a566..b67a6607bb3b 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -23,7 +23,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012 - 2015, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h
index d792c4adb0ca..3bb9468e0b9d 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-types.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h
@@ -23,7 +23,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012 - 2015, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/include/linux/lnet/nidstr.h b/drivers/staging/lustre/include/linux/lnet/nidstr.h
index 46ad9147ad2a..4fc9ddce829d 100644
--- a/drivers/staging/lustre/include/linux/lnet/nidstr.h
+++ b/drivers/staging/lustre/include/linux/lnet/nidstr.h
@@ -23,7 +23,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011 - 2015, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 #ifndef _LNET_NIDSTRINGS_H
 #define _LNET_NIDSTRINGS_H
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 7c730e3f7453..72af486b65df 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -2865,7 +2865,7 @@ static int __init kiblnd_module_init(void)
 	return 0;
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Kernel OpenIB gen2 LND v2.00");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
index 263db37de7c8..025faa9f86b3 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index 260750354a41..c7b9ccb13f1c 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
index ecfe73302350..05aa90ea597a 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -2621,8 +2621,8 @@ ksocknal_enumerate_interfaces(ksock_net_t *net)
 
 		net->ksnn_interfaces[j].ksni_ipaddr = ip;
 		net->ksnn_interfaces[j].ksni_netmask = mask;
-		strncpy(&net->ksnn_interfaces[j].ksni_name[0],
-			names[i], IFNAMSIZ);
+		strlcpy(net->ksnn_interfaces[j].ksni_name,
+			names[i], sizeof(net->ksnn_interfaces[j].ksni_name));
 		j++;
 	}
 
@@ -2805,8 +2805,9 @@ ksocknal_startup(lnet_ni_t *ni)
 				goto fail_1;
 			}
 
-			strncpy(&net->ksnn_interfaces[i].ksni_name[0],
-				ni->ni_interfaces[i], IFNAMSIZ);
+			strlcpy(net->ksnn_interfaces[i].ksni_name,
+				ni->ni_interfaces[i],
+				sizeof(net->ksnn_interfaces[i].ksni_name));
 		}
 		net->ksnn_ninterfaces = i;
 	}
@@ -2868,7 +2869,7 @@ ksocknal_module_init(void)
 	return 0;
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Kernel TCP Socket LND v3.0.0");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("3.0.0");
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
index b349847f9cf9..f4fa72550657 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
@@ -679,6 +679,9 @@ int ksocknal_lib_recv_kiov(ksock_conn_t *conn);
 int ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem,
 				   int *rxmem, int *nagle);
 
+void ksocknal_read_callback(ksock_conn_t *conn);
+void ksocknal_write_callback(ksock_conn_t *conn);
+
 int ksocknal_tunables_init(void);
 
 void ksocknal_lib_csum_tx(ksock_tx_t *tx);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
index 9de4f23910d8..cf8e43bd3c03 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
@@ -580,8 +580,6 @@ ksocknal_lib_push_conn(ksock_conn_t *conn)
 	ksocknal_connsock_decref(conn);
 }
 
-extern void ksocknal_read_callback(ksock_conn_t *conn);
-extern void ksocknal_write_callback(ksock_conn_t *conn);
 /*
  * socket call back in Linux
  */
diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index 92ca1dd64076..fed57d90028d 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
index 395412639935..362282fa00bf 100644
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -354,16 +354,6 @@ lnet_counters_reset(void)
 
 	lnet_net_unlock(LNET_LOCK_EX);
 }
-EXPORT_SYMBOL(lnet_counters_reset);
-
-static __u64
-lnet_create_interface_cookie(void)
-{
-	/* NB the interface cookie in wire handles guards against delayed
-	 * replies and ACKs appearing valid after reboot.
-	 */
-	return ktime_get_ns();
-}
 
 static char *
 lnet_res_type2str(int type)
@@ -553,8 +543,11 @@ lnet_prepare(lnet_pid_t requested_pid)
 	rc = lnet_create_remote_nets_table();
 	if (rc != 0)
 		goto failed;
-
-	the_lnet.ln_interface_cookie = lnet_create_interface_cookie();
+	/*
+	 * NB the interface cookie in wire handles guards against delayed
+	 * replies and ACKs appearing valid after reboot.
+	 */
+	the_lnet.ln_interface_cookie = ktime_get_ns();
 
 	the_lnet.ln_counters = cfs_percpt_alloc(lnet_cpt_table(),
 						sizeof(lnet_counters_t));
@@ -1159,7 +1152,6 @@ lnet_init(void)
 	lnet_register_lnd(&the_lolnd);
 	return 0;
 }
-EXPORT_SYMBOL(lnet_init);
 
 /**
  * Finalize LNet library.
@@ -1183,7 +1175,6 @@ lnet_fini(void)
 
 	the_lnet.ln_init = 0;
 }
-EXPORT_SYMBOL(lnet_fini);
 
 /**
  * Set LNet PID and start LNet interfaces, routing, and forwarding.
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index 1b3bc8386524..284a3c271bc6 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -650,8 +650,8 @@ lnet_parse_route(char *str, int *im_a_router)
 	INIT_LIST_HEAD(&nets);
 
 	/* save a copy of the string for error messages */
-	strncpy(cmd, str, sizeof(cmd) - 1);
-	cmd[sizeof(cmd) - 1] = 0;
+	strncpy(cmd, str, sizeof(cmd));
+	cmd[sizeof(cmd) - 1] = '\0';
 
 	sep = str;
 	for (;;) {
@@ -972,11 +972,13 @@ lnet_splitnets(char *source, struct list_head *nets)
 			return 0;
 
 		offset += (int)(sep - tb->ltb_text);
-		tb2 = lnet_new_text_buf(strlen(sep));
+		len = strlen(sep);
+		tb2 = lnet_new_text_buf(len);
 		if (tb2 == NULL)
 			return -ENOMEM;
 
-		strcpy(tb2->ltb_text, sep);
+		strncpy(tb2->ltb_text, sep, len);
+		tb2->ltb_text[len] = '\0';
 		list_add_tail(&tb2->ltb_list, nets);
 
 		tb = tb2;
@@ -1021,8 +1023,8 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 		tb = list_entry(raw_entries.next, struct lnet_text_buf_t,
 				    ltb_list);
 
-		strncpy(source, tb->ltb_text, sizeof(source)-1);
-		source[sizeof(source)-1] = 0;
+		strncpy(source, tb->ltb_text, sizeof(source));
+		source[sizeof(source)-1] = '\0';
 
 		/* replace ltb_text with the network(s) add on match */
 		rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip);
@@ -1103,12 +1105,6 @@ lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 	return count;
 }
 
-static void
-lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
-{
-	LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
-}
-
 static int
 lnet_ipaddr_enumerate(__u32 **ipaddrsp)
 {
@@ -1169,7 +1165,7 @@ lnet_ipaddr_enumerate(__u32 **ipaddrsp)
 				rc = nip;
 			}
 		}
-		lnet_ipaddr_free_enumeration(ipaddrs, nif);
+		LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
 	}
 	return nip;
 }
@@ -1195,7 +1191,7 @@ lnet_parse_ip2nets(char **networksp, char *ip2nets)
 	}
 
 	rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip);
-	lnet_ipaddr_free_enumeration(ipaddrs, nip);
+	LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
 
 	if (rc < 0) {
 		LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c
index 60889ebd2f2b..64f94a690081 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-eq.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c
@@ -282,15 +282,6 @@ lnet_eq_dequeue_event(lnet_eq_t *eq, lnet_event_t *ev)
  * at least one event between this event and the last event obtained from the
  * EQ has been dropped due to limited space in the EQ.
  */
-int
-LNetEQGet(lnet_handle_eq_t eventq, lnet_event_t *event)
-{
-	int which;
-
-	return LNetEQPoll(&eventq, 1, 0,
-			 event, &which);
-}
-EXPORT_SYMBOL(LNetEQGet);
 
 /**
  * Block the calling process until there is an event in the EQ.
@@ -308,15 +299,6 @@ EXPORT_SYMBOL(LNetEQGet);
  * at least one event between this event and the last event obtained from the
  * EQ has been dropped due to limited space in the EQ.
  */
-int
-LNetEQWait(lnet_handle_eq_t eventq, lnet_event_t *event)
-{
-	int which;
-
-	return LNetEQPoll(&eventq, 1, LNET_TIME_FOREVER,
-			 event, &which);
-}
-EXPORT_SYMBOL(LNetEQWait);
 
 static int
 lnet_eq_wait_locked(int *timeout_ms)
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 5631f60a39bc..fb8f7be043ec 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1645,7 +1645,6 @@ lnet_msgtyp2str(int type)
 		return "<UNKNOWN>";
 	}
 }
-EXPORT_SYMBOL(lnet_msgtyp2str);
 
 void
 lnet_print_hdr(lnet_hdr_t *hdr)
diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
index b4f573ab62cc..bd7b071b2873 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
@@ -21,7 +21,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c
index 6f7ef4c737cd..589ecc84d1b8 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-socket.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c
@@ -23,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2015 Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
index 576201a8390c..c93c00752a4c 100644
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ b/drivers/staging/lustre/lnet/lnet/module.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -146,7 +146,7 @@ fini_lnet(void)
 	lnet_fini();
 }
 
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("LNet v3.1");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("1.0.0");
diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c
index 4ea651c6db3a..f5faa414d250 100644
--- a/drivers/staging/lustre/lnet/lnet/router.c
+++ b/drivers/staging/lustre/lnet/lnet/router.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  *
  *   This file is part of Portals
  *   http://sourceforge.net/projects/sandiaportals/
diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index 0605c651f797..1f04cc1fc31c 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -358,7 +358,7 @@ out:
 }
 
 static void
-brw_server_rpc_done(srpc_server_rpc_t *rpc)
+brw_server_rpc_done(struct srpc_server_rpc *rpc)
 {
 	srpc_bulk_t *blk = rpc->srpc_bulk;
 
@@ -378,7 +378,7 @@ brw_server_rpc_done(srpc_server_rpc_t *rpc)
 }
 
 static int
-brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
+brw_bulk_ready(struct srpc_server_rpc *rpc, int status)
 {
 	__u64 magic = BRW_MAGIC;
 	srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c
index 556c837cf62c..a534665403e5 100644
--- a/drivers/staging/lustre/lnet/selftest/conctl.c
+++ b/drivers/staging/lustre/lnet/selftest/conctl.c
@@ -925,5 +925,3 @@ out:
 
 	return rc;
 }
-
-EXPORT_SYMBOL(lstcon_ioctl_entry);
diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index 64a0335934f3..1066c70434b1 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -612,8 +612,8 @@ lstcon_sesrpc_prep(lstcon_node_t *nd, int transop,
 		msrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.mksn_reqst;
 		msrq->mksn_sid     = console_session.ses_id;
 		msrq->mksn_force   = console_session.ses_force;
-		strncpy(msrq->mksn_name, console_session.ses_name,
-			strlen(console_session.ses_name));
+		strlcpy(msrq->mksn_name, console_session.ses_name,
+			sizeof(msrq->mksn_name));
 		break;
 
 	case LST_TRANS_SESEND:
diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
index d315dd44ae3b..5619fc430e8d 100644
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ b/drivers/staging/lustre/lnet/selftest/console.c
@@ -277,12 +277,6 @@ lstcon_group_find(const char *name, lstcon_group_t **grpp)
 	return -ENOENT;
 }
 
-static void
-lstcon_group_put(lstcon_group_t *grp)
-{
-	lstcon_group_decref(grp);
-}
-
 static int
 lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id,
 			 lstcon_ndlink_t **ndlpp, int create)
@@ -324,8 +318,6 @@ lstcon_group_ndlink_move(lstcon_group_t *old,
 	list_add_tail(&ndl->ndl_hlink, &new->grp_ndl_hash[idx]);
 	list_add_tail(&ndl->ndl_link, &new->grp_ndl_list);
 	new->grp_nnode++;
-
-	return;
 }
 
 static void
@@ -436,7 +428,7 @@ lstcon_group_nodes_add(lstcon_group_t *grp,
 	}
 
 	if (rc != 0) {
-		lstcon_group_put(tmp);
+		lstcon_group_decref(tmp);
 		return rc;
 	}
 
@@ -445,7 +437,7 @@ lstcon_group_nodes_add(lstcon_group_t *grp,
 				     tmp, lstcon_sesrpc_condition, &trans);
 	if (rc != 0) {
 		CERROR("Can't create transaction: %d\n", rc);
-		lstcon_group_put(tmp);
+		lstcon_group_decref(tmp);
 		return rc;
 	}
 
@@ -460,7 +452,7 @@ lstcon_group_nodes_add(lstcon_group_t *grp,
 	lstcon_rpc_trans_destroy(trans);
 
 	lstcon_group_move(tmp, grp);
-	lstcon_group_put(tmp);
+	lstcon_group_decref(tmp);
 
 	return rc;
 }
@@ -510,12 +502,12 @@ lstcon_group_nodes_remove(lstcon_group_t *grp,
 
 	lstcon_rpc_trans_destroy(trans);
 	/* release nodes anyway, because we can't rollback status */
-	lstcon_group_put(tmp);
+	lstcon_group_decref(tmp);
 
 	return rc;
 error:
 	lstcon_group_move(tmp, grp);
-	lstcon_group_put(tmp);
+	lstcon_group_decref(tmp);
 
 	return rc;
 }
@@ -529,7 +521,7 @@ lstcon_group_add(char *name)
 	rc = (lstcon_group_find(name, &grp) == 0) ? -EEXIST : 0;
 	if (rc != 0) {
 		/* find a group with same name */
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return rc;
 	}
 
@@ -563,14 +555,14 @@ lstcon_nodes_add(char *name, int count, lnet_process_id_t *ids_up,
 	if (grp->grp_ref > 2) {
 		/* referred by other threads or test */
 		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 		return -EBUSY;
 	}
 
 	rc = lstcon_group_nodes_add(grp, count, ids_up, featp, result_up);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -591,7 +583,7 @@ lstcon_group_del(char *name)
 	if (grp->grp_ref > 2) {
 		/* referred by others threads or test */
 		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return -EBUSY;
 	}
 
@@ -600,7 +592,7 @@ lstcon_group_del(char *name)
 				     grp, lstcon_sesrpc_condition, &trans);
 	if (rc != 0) {
 		CERROR("Can't create transaction: %d\n", rc);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return rc;
 	}
 
@@ -608,10 +600,10 @@ lstcon_group_del(char *name)
 
 	lstcon_rpc_trans_destroy(trans);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 	/* -ref for session, it's destroyed,
 	 * status can't be rolled back, destroy group anyway */
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -631,7 +623,7 @@ lstcon_group_clean(char *name, int args)
 	if (grp->grp_ref > 2) {
 		/* referred by test */
 		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return -EBUSY;
 	}
 
@@ -640,10 +632,10 @@ lstcon_group_clean(char *name, int args)
 
 	lstcon_group_drain(grp, args);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 	/* release empty group */
 	if (list_empty(&grp->grp_ndl_list))
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 	return 0;
 }
@@ -664,16 +656,16 @@ lstcon_nodes_remove(char *name, int count,
 	if (grp->grp_ref > 2) {
 		/* referred by test */
 		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return -EBUSY;
 	}
 
 	rc = lstcon_group_nodes_remove(grp, count, ids_up, result_up);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 	/* release empty group */
 	if (list_empty(&grp->grp_ndl_list))
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -694,7 +686,7 @@ lstcon_group_refresh(char *name, struct list_head *result_up)
 	if (grp->grp_ref > 2) {
 		/* referred by test */
 		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return -EBUSY;
 	}
 
@@ -705,7 +697,7 @@ lstcon_group_refresh(char *name, struct list_head *result_up)
 	if (rc != 0) {
 		/* local error, return */
 		CDEBUG(D_NET, "Can't create transaction: %d\n", rc);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return rc;
 	}
 
@@ -715,7 +707,7 @@ lstcon_group_refresh(char *name, struct list_head *result_up)
 
 	lstcon_rpc_trans_destroy(trans);
 	/* -ref for me */
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -797,7 +789,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t *gents_p,
 		/* verbose query */
 		rc = lstcon_nodes_getent(&grp->grp_ndl_list,
 					 index_p, count_p, dents_up);
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 		return rc;
 	}
@@ -806,7 +798,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t *gents_p,
 	LIBCFS_ALLOC(gentp, sizeof(lstcon_ndlist_ent_t));
 	if (gentp == NULL) {
 		CERROR("Can't allocate ndlist_ent\n");
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 		return -ENOMEM;
 	}
@@ -819,7 +811,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t *gents_p,
 
 	LIBCFS_FREE(gentp, sizeof(lstcon_ndlist_ent_t));
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return 0;
 }
@@ -1096,8 +1088,8 @@ lstcon_batch_destroy(lstcon_batch_t *bat)
 
 		list_del(&test->tes_link);
 
-		lstcon_group_put(test->tes_src_grp);
-		lstcon_group_put(test->tes_dst_grp);
+		lstcon_group_decref(test->tes_src_grp);
+		lstcon_group_decref(test->tes_dst_grp);
 
 		LIBCFS_FREE(test, offsetof(lstcon_test_t,
 					   tes_param[test->tes_paramlen]));
@@ -1352,10 +1344,10 @@ out:
 		LIBCFS_FREE(test, offsetof(lstcon_test_t, tes_param[paramlen]));
 
 	if (dst_grp != NULL)
-		lstcon_group_put(dst_grp);
+		lstcon_group_decref(dst_grp);
 
 	if (src_grp != NULL)
-		lstcon_group_put(src_grp);
+		lstcon_group_decref(src_grp);
 
 	return rc;
 }
@@ -1518,7 +1510,7 @@ lstcon_group_stat(char *grp_name, int timeout, struct list_head *result_up)
 
 	rc = lstcon_ndlist_stat(&grp->grp_ndl_list, timeout, result_up);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -1556,13 +1548,13 @@ lstcon_nodes_stat(int count, lnet_process_id_t *ids_up,
 	}
 
 	if (rc != 0) {
-		lstcon_group_put(tmp);
+		lstcon_group_decref(tmp);
 		return rc;
 	}
 
 	rc = lstcon_ndlist_stat(&tmp->grp_ndl_list, timeout, result_up);
 
-	lstcon_group_put(tmp);
+	lstcon_group_decref(tmp);
 
 	return rc;
 }
@@ -1629,7 +1621,7 @@ lstcon_group_debug(int timeout, char *name,
 
 	rc = lstcon_debug_ndlist(&grp->grp_ndl_list, NULL,
 				 timeout, result_up);
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -1666,14 +1658,14 @@ lstcon_nodes_debug(int timeout,
 	}
 
 	if (rc != 0) {
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 		return rc;
 	}
 
 	rc = lstcon_debug_ndlist(&grp->grp_ndl_list, NULL,
 				 timeout, result_up);
 
-	lstcon_group_put(grp);
+	lstcon_group_decref(grp);
 
 	return rc;
 }
@@ -1739,7 +1731,8 @@ lstcon_session_new(char *name, int key, unsigned feats,
 	console_session.ses_feats_updated = 0;
 	console_session.ses_timeout = (timeout <= 0) ?
 				      LST_CONSOLE_TIMEOUT : timeout;
-	strcpy(console_session.ses_name, name);
+	strlcpy(console_session.ses_name, name,
+		sizeof(console_session.ses_name));
 
 	rc = lstcon_batch_add(LST_DEFAULT_BATCH);
 	if (rc != 0)
@@ -1847,7 +1840,7 @@ lstcon_session_end(void)
 				     lstcon_group_t, grp_link);
 		LASSERT(grp->grp_ref == 1);
 
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 	}
 
 	/* all nodes should be released */
@@ -1891,7 +1884,7 @@ lstcon_session_feats_check(unsigned feats)
 }
 
 static int
-lstcon_acceptor_handle(srpc_server_rpc_t *rpc)
+lstcon_acceptor_handle(struct srpc_server_rpc *rpc)
 {
 	srpc_msg_t *rep  = &rpc->srpc_replymsg;
 	srpc_msg_t *req  = &rpc->srpc_reqstbuf->buf_msg;
@@ -1959,14 +1952,15 @@ lstcon_acceptor_handle(srpc_server_rpc_t *rpc)
 	if (grp->grp_userland == 0)
 		grp->grp_userland = 1;
 
-	strcpy(jrep->join_session, console_session.ses_name);
+	strlcpy(jrep->join_session, console_session.ses_name,
+		sizeof(jrep->join_session));
 	jrep->join_timeout = console_session.ses_timeout;
 	jrep->join_status  = 0;
 
 out:
 	rep->msg_ses_feats = console_session.ses_features;
 	if (grp != NULL)
-		lstcon_group_put(grp);
+		lstcon_group_decref(grp);
 
 	mutex_unlock(&console_session.ses_mutex);
 
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
index f18e50036809..1a2da7430190 100644
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ b/drivers/staging/lustre/lnet/selftest/framework.c
@@ -111,7 +111,7 @@ static struct smoketest_framework {
 	spinlock_t        fw_lock;            /* serialise */
 	sfw_session_t     *fw_session;        /* _the_ session */
 	int               fw_shuttingdown;    /* shutdown in progress */
-	srpc_server_rpc_t *fw_active_srpc;    /* running RPC */
+	struct srpc_server_rpc *fw_active_srpc;/* running RPC */
 } sfw_data;
 
 /* forward ref's */
@@ -722,7 +722,7 @@ sfw_unpack_addtest_req(srpc_msg_t *msg)
 }
 
 static int
-sfw_add_test_instance(sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
+sfw_add_test_instance(sfw_batch_t *tsb, struct srpc_server_rpc *rpc)
 {
 	srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg;
 	srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
@@ -1091,7 +1091,7 @@ sfw_query_batch(sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 }
 
 void
-sfw_free_pages(srpc_server_rpc_t *rpc)
+sfw_free_pages(struct srpc_server_rpc *rpc)
 {
 	srpc_free_bulk(rpc->srpc_bulk);
 	rpc->srpc_bulk = NULL;
@@ -1112,7 +1112,7 @@ sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 }
 
 static int
-sfw_add_test(srpc_server_rpc_t *rpc)
+sfw_add_test(struct srpc_server_rpc *rpc)
 {
 	sfw_session_t *sn = sfw_data.fw_session;
 	srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c
index 7005002c15da..2acf6ec717be 100644
--- a/drivers/staging/lustre/lnet/selftest/rpc.c
+++ b/drivers/staging/lustre/lnet/selftest/rpc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -445,15 +445,6 @@ srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
 }
 
 static int
-srpc_post_active_rqtbuf(lnet_process_id_t peer, int service, void *buf,
-			int len, lnet_handle_md_t *mdh, srpc_event_t *ev)
-{
-	return srpc_post_active_rdma(srpc_serv_portal(service), service,
-				     buf, len, LNET_MD_OP_PUT, peer,
-				     LNET_NID_ANY, mdh, ev);
-}
-
-static int
 srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
 			 lnet_handle_md_t *mdh, srpc_event_t *ev)
 {
@@ -798,9 +789,11 @@ srpc_send_request(srpc_client_rpc_t *rpc)
 	ev->ev_data  = rpc;
 	ev->ev_type  = SRPC_REQUEST_SENT;
 
-	rc = srpc_post_active_rqtbuf(rpc->crpc_dest, rpc->crpc_service,
-				     &rpc->crpc_reqstmsg, sizeof(srpc_msg_t),
-				     &rpc->crpc_reqstmdh, ev);
+	 rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service),
+				    rpc->crpc_service, &rpc->crpc_reqstmsg,
+				    sizeof(srpc_msg_t), LNET_MD_OP_PUT,
+				    rpc->crpc_dest, LNET_NID_ANY,
+				    &rpc->crpc_reqstmdh, ev);
 	if (rc != 0) {
 		LASSERT(rc == -ENOMEM);
 		ev->ev_fired = 1;  /* no more event expected */
@@ -866,7 +859,7 @@ srpc_prepare_bulk(srpc_client_rpc_t *rpc)
 }
 
 static int
-srpc_do_bulk(srpc_server_rpc_t *rpc)
+srpc_do_bulk(struct srpc_server_rpc *rpc)
 {
 	srpc_event_t *ev = &rpc->srpc_ev;
 	srpc_bulk_t *bk = rpc->srpc_bulk;
@@ -894,7 +887,7 @@ srpc_do_bulk(srpc_server_rpc_t *rpc)
 
 /* only called from srpc_handle_rpc */
 static void
-srpc_server_rpc_done(srpc_server_rpc_t *rpc, int status)
+srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status)
 {
 	struct srpc_service_cd *scd = rpc->srpc_scd;
 	struct srpc_service *sv  = scd->scd_svc;
@@ -1404,7 +1397,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev)
 	struct srpc_service_cd *scd;
 	srpc_event_t *rpcev = ev->md.user_ptr;
 	srpc_client_rpc_t *crpc;
-	srpc_server_rpc_t *srpc;
+	struct srpc_server_rpc *srpc;
 	srpc_buffer_t *buffer;
 	srpc_service_t *sv;
 	srpc_msg_t *msg;
diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h
index 8a77d3fdfa54..870498339538 100644
--- a/drivers/staging/lustre/lnet/selftest/selftest.h
+++ b/drivers/staging/lustre/lnet/selftest/selftest.h
@@ -182,7 +182,7 @@ typedef struct swi_workitem {
 } swi_workitem_t;
 
 /* server-side state of a RPC */
-typedef struct srpc_server_rpc {
+struct srpc_server_rpc {
 	/* chain on srpc_service::*_rpcq */
 	struct list_head       srpc_list;
 	struct srpc_service_cd *srpc_scd;
@@ -198,7 +198,7 @@ typedef struct srpc_server_rpc {
 	unsigned int           srpc_aborted; /* being given up */
 	int                    srpc_status;
 	void                   (*srpc_done)(struct srpc_server_rpc *);
-} srpc_server_rpc_t;
+};
 
 /* client-side state of a RPC */
 typedef struct srpc_client_rpc {
@@ -318,8 +318,8 @@ typedef struct srpc_service {
 	 * - sv_handler: process incoming RPC request
 	 * - sv_bulk_ready: notify bulk data
 	 */
-	int                     (*sv_handler) (srpc_server_rpc_t *);
-	int                     (*sv_bulk_ready) (srpc_server_rpc_t *, int);
+	int (*sv_handler)(struct srpc_server_rpc *);
+	int (*sv_bulk_ready)(struct srpc_server_rpc *, int);
 } srpc_service_t;
 
 typedef struct {
@@ -423,9 +423,9 @@ void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 void sfw_unpack_message(srpc_msg_t *msg);
-void sfw_free_pages(srpc_server_rpc_t *rpc);
+void sfw_free_pages(struct srpc_server_rpc *rpc);
 void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i);
-int sfw_alloc_pages(srpc_server_rpc_t *rpc, int cpt, int npages, int len,
+int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 		    int sink);
 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 
@@ -440,7 +440,7 @@ void srpc_free_bulk(srpc_bulk_t *bk);
 srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len,
 			     int sink);
 int srpc_send_rpc(swi_workitem_t *wi);
-int srpc_send_reply(srpc_server_rpc_t *rpc);
+int srpc_send_reply(struct srpc_server_rpc *rpc);
 int srpc_add_service(srpc_service_t *sv);
 int srpc_remove_service(srpc_service_t *sv);
 void srpc_shutdown_service(srpc_service_t *sv);
@@ -585,7 +585,7 @@ swi_state2str (int state)
 do {									\
 	int __I = 2;							\
 	while (!(cond)) {						\
-		CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,		\
+		CDEBUG(is_power_of_2(++__I) ? D_WARNING : D_NET,	\
 		       fmt, ## __VA_ARGS__);				\
 		spin_unlock(&(lock));					\
 									\
diff --git a/drivers/staging/lustre/lustre/fid/fid_internal.h b/drivers/staging/lustre/lustre/fid/fid_internal.h
index 84daee1154dc..b79a813977cf 100644
--- a/drivers/staging/lustre/lustre/fid/fid_internal.h
+++ b/drivers/staging/lustre/lustre/fid/fid_internal.h
@@ -44,8 +44,6 @@
 #include "../../include/linux/libcfs/libcfs.h"
 
 /* Functions used internally in module. */
-int seq_client_alloc_super(struct lu_client_seq *seq,
-			   const struct lu_env *env);
 
 extern struct lprocfs_vars seq_client_debugfs_list[];
 
diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c
index 7c45e7479087..ff8f38dc10ce 100644
--- a/drivers/staging/lustre/lustre/fid/fid_request.c
+++ b/drivers/staging/lustre/lustre/fid/fid_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -142,27 +142,6 @@ out_req:
 	return rc;
 }
 
-/* Request sequence-controller node to allocate new super-sequence. */
-int seq_client_alloc_super(struct lu_client_seq *seq,
-			   const struct lu_env *env)
-{
-	int rc;
-
-	mutex_lock(&seq->lcs_mutex);
-
-	/* Check whether the connection to seq controller has been
-	 * setup (lcs_exp != NULL) */
-	if (!seq->lcs_exp) {
-		mutex_unlock(&seq->lcs_mutex);
-		return -EINPROGRESS;
-	}
-
-	rc = seq_client_rpc(seq, &seq->lcs_space,
-			    SEQ_ALLOC_SUPER, "super");
-	mutex_unlock(&seq->lcs_mutex);
-	return rc;
-}
-
 /* Request sequence-controller node to allocate new meta-sequence. */
 static int seq_client_alloc_meta(const struct lu_env *env,
 				 struct lu_client_seq *seq)
@@ -483,7 +462,7 @@ static void __exit fid_mod_exit(void)
 		ldebugfs_remove(&seq_debugfs_dir);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre FID Module");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("0.1.0");
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
index ce90c1c54a63..39f2aa32e984 100644
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ b/drivers/staging/lustre/lustre/fid/lproc_fid.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
index 446917484637..d9459e58e2ce 100644
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ b/drivers/staging/lustre/lustre/fld/fld_cache.c
@@ -121,8 +121,8 @@ void fld_cache_fini(struct fld_cache *cache)
 /**
  * delete given node from list.
  */
-void fld_cache_entry_delete(struct fld_cache *cache,
-			    struct fld_cache_entry *node)
+static void fld_cache_entry_delete(struct fld_cache *cache,
+				   struct fld_cache_entry *node)
 {
 	list_del(&node->fce_list);
 	list_del(&node->fce_lru);
@@ -227,7 +227,6 @@ static int fld_cache_shrink(struct fld_cache *cache)
 
 	while (cache->fci_cache_count + cache->fci_threshold >
 	       cache->fci_cache_size && curr != &cache->fci_lru) {
-
 		flde = list_entry(curr, struct fld_cache_entry, fce_lru);
 		curr = curr->prev;
 		fld_cache_entry_delete(cache, flde);
@@ -377,8 +376,8 @@ struct fld_cache_entry
  * This function handles all cases of merging and breaking up of
  * ranges.
  */
-int fld_cache_insert_nolock(struct fld_cache *cache,
-			    struct fld_cache_entry *f_new)
+static int fld_cache_insert_nolock(struct fld_cache *cache,
+				   struct fld_cache_entry *f_new)
 {
 	struct fld_cache_entry *f_curr;
 	struct fld_cache_entry *n;
@@ -444,36 +443,10 @@ int fld_cache_insert(struct fld_cache *cache,
 	return rc;
 }
 
-void fld_cache_delete_nolock(struct fld_cache *cache,
-		      const struct lu_seq_range *range)
-{
-	struct fld_cache_entry *flde;
-	struct fld_cache_entry *tmp;
-	struct list_head *head;
-
-	head = &cache->fci_entries_head;
-	list_for_each_entry_safe(flde, tmp, head, fce_list) {
-		/* add list if next is end of list */
-		if (range->lsr_start == flde->fce_range.lsr_start ||
-		   (range->lsr_end == flde->fce_range.lsr_end &&
-		    range->lsr_flags == flde->fce_range.lsr_flags)) {
-			fld_cache_entry_delete(cache, flde);
-			break;
-		}
-	}
-}
-
 /**
  * Delete FLD entry in FLD cache.
  *
  */
-void fld_cache_delete(struct fld_cache *cache,
-		      const struct lu_seq_range *range)
-{
-	write_lock(&cache->fci_lock);
-	fld_cache_delete_nolock(cache, range);
-	write_unlock(&cache->fci_lock);
-}
 
 struct fld_cache_entry
 *fld_cache_entry_lookup_nolock(struct fld_cache *cache,
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
index fbb232de6c74..12eb1647b4bf 100644
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -156,20 +156,11 @@ int fld_cache_insert(struct fld_cache *cache,
 struct fld_cache_entry
 *fld_cache_entry_create(const struct lu_seq_range *range);
 
-int fld_cache_insert_nolock(struct fld_cache *cache,
-			    struct fld_cache_entry *f_new);
-void fld_cache_delete(struct fld_cache *cache,
-		      const struct lu_seq_range *range);
-void fld_cache_delete_nolock(struct fld_cache *cache,
-			     const struct lu_seq_range *range);
 int fld_cache_lookup(struct fld_cache *cache,
 		     const u64 seq, struct lu_seq_range *range);
 
 struct fld_cache_entry*
 fld_cache_entry_lookup(struct fld_cache *cache, struct lu_seq_range *range);
-void fld_cache_entry_delete(struct fld_cache *cache,
-			    struct fld_cache_entry *node);
-void fld_dump_cache_entries(struct fld_cache *cache);
 
 struct fld_cache_entry
 *fld_cache_entry_lookup_nolock(struct fld_cache *cache,
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index 3fd91bc77da5..d92c01b74865 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -501,7 +501,7 @@ static void __exit fld_mod_exit(void)
 		ldebugfs_remove(&fld_debugfs_dir);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre FLD");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index 603f56e6095b..41ceaa8198a7 100644
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h
index 73564f8e3884..bd7acc2a1219 100644
--- a/drivers/staging/lustre/lustre/include/cl_object.h
+++ b/drivers/staging/lustre/lustre/include/cl_object.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -3127,7 +3127,6 @@ void cl_page_list_disown (const struct lu_env *env,
 			  struct cl_io *io, struct cl_page_list *plist);
 
 void cl_2queue_init     (struct cl_2queue *queue);
-void cl_2queue_add      (struct cl_2queue *queue, struct cl_page *page);
 void cl_2queue_disown   (const struct lu_env *env,
 			 struct cl_io *io, struct cl_2queue *queue);
 void cl_2queue_discard  (const struct lu_env *env,
diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
index 9e654b218ca3..0ac8e0edcc48 100644
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -624,9 +624,6 @@ void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
 int lprocfs_single_release(struct inode *, struct file *);
 int lprocfs_seq_release(struct inode *, struct file *);
 
-#define LPROCFS_CLIMP_EXIT(obd)		 \
-	up_read(&(obd)->u.cli.cl_sem)
-
 /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
   proc entries; otherwise, you will define name##_seq_write function also for
   a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index fa78689748a9..1d79341a495d 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
index 06ce8c9ae9ad..09088f40ba88 100644
--- a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
+++ b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2014, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 0b721c65c2a3..b064b5821e3f 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index 80f8ec529424..2b4dd656d5f5 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h
index 5e1ac129a681..7c6933ffc9c1 100644
--- a/drivers/staging/lustre/lustre/include/lustre_disk.h
+++ b/drivers/staging/lustre/lustre/include/lustre_disk.h
@@ -68,6 +68,7 @@
    everything as string options */
 
 #define LMD_MAGIC    0xbdacbd03
+#define LMD_PARAMS_MAXLEN	4096
 
 /* gleaned from the mount command - no persistent info here */
 struct lustre_mount_data {
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 0e75a15fe0d4..9b319f1df025 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -872,8 +872,6 @@ struct ldlm_resource {
 	 */
 	struct mutex		lr_lvb_mutex;
 	int			lr_lvb_len;
-	/** protected by lr_lock */
-	void			*lr_lvb_data;
 
 	/** When the resource was considered as contended. */
 	unsigned long		lr_contention_time;
diff --git a/drivers/staging/lustre/lustre/include/lustre_eacl.h b/drivers/staging/lustre/lustre/include/lustre_eacl.h
index fee4d2c75506..0b66593a9526 100644
--- a/drivers/staging/lustre/lustre/include/lustre_eacl.h
+++ b/drivers/staging/lustre/lustre/include/lustre_eacl.h
@@ -76,8 +76,6 @@ extern int
 lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size,
 			      posix_acl_xattr_header **out);
 extern void
-lustre_posix_acl_xattr_free(posix_acl_xattr_header *header, int size);
-extern void
 lustre_ext_acl_xattr_free(ext_acl_xattr_header *header);
 extern ext_acl_xattr_header *
 lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size,
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h
index 1daf4c572415..311e5aa9b0db 100644
--- a/drivers/staging/lustre/lustre/include/lustre_export.h
+++ b/drivers/staging/lustre/lustre/include/lustre_export.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
index 47c3f3750240..9b1a9c695113 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_fld.h b/drivers/staging/lustre/lustre/include/lustre_fld.h
index d8b3db9cdeba..551162624974 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fld.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fld.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_ha.h b/drivers/staging/lustre/lustre/include/lustre_ha.h
index 49dfbb14f381..5488a698dabd 100644
--- a/drivers/staging/lustre/lustre/include/lustre_ha.h
+++ b/drivers/staging/lustre/lustre/include/lustre_ha.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_log.h b/drivers/staging/lustre/lustre/include/lustre_log.h
index 1de0c4d6f7f7..e4fc8b5e1336 100644
--- a/drivers/staging/lustre/lustre/include/lustre_log.h
+++ b/drivers/staging/lustre/lustre/include/lustre_log.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -94,9 +94,6 @@ int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt,
 	      struct llog_handle **lgh, struct llog_logid *logid,
 	      char *name, enum llog_open_param open_param);
 int llog_close(const struct lu_env *env, struct llog_handle *cathandle);
-int llog_backup(const struct lu_env *env, struct obd_device *obd,
-		struct llog_ctxt *ctxt, struct llog_ctxt *bak_ctxt,
-		char *name, char *backup);
 
 /* llog_process flags */
 #define LLOG_FLAG_NODEAMON 0x0001
diff --git a/drivers/staging/lustre/lustre/include/lustre_mds.h b/drivers/staging/lustre/lustre/include/lustre_mds.h
index a16eb8b61178..95d27ddecfb3 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mds.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mds.h
@@ -62,12 +62,6 @@ struct mds_group_info {
 #define MDD_OBD_NAME     "mdd_obd"
 #define MDD_OBD_UUID     "mdd_obd_uuid"
 
-static inline int md_should_create(__u64 flags)
-{
-       return !(flags & MDS_OPEN_DELAY_CREATE ||
-	       !(flags & FMODE_WRITE));
-}
-
 /* these are local flags, used only on the client, private */
 #define M_CHECK_STALE	   0200000000
 
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index 0127f45ca0c3..d834ddd8183b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_param.h b/drivers/staging/lustre/lustre/include/lustre_param.h
index 8f6c0b26cfab..383fe6febe4b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_param.h
+++ b/drivers/staging/lustre/lustre/include/lustre_param.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
index df292f6d4a85..46a662f89322 100644
--- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h
+++ b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index 5e93afca3435..bcbe61301713 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -963,123 +963,123 @@ struct md_enqueue_info {
 };
 
 struct obd_ops {
-	struct module *o_owner;
-	int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
-			   void *karg, void *uarg);
-	int (*o_get_info)(const struct lu_env *env, struct obd_export *,
-			  __u32 keylen, void *key, __u32 *vallen, void *val,
-			  struct lov_stripe_md *lsm);
-	int (*o_set_info_async)(const struct lu_env *, struct obd_export *,
-				__u32 keylen, void *key,
-				__u32 vallen, void *val,
-				struct ptlrpc_request_set *set);
-	int (*o_attach)(struct obd_device *dev, u32 len, void *data);
-	int (*o_detach)(struct obd_device *dev);
-	int (*o_setup)(struct obd_device *dev, struct lustre_cfg *cfg);
-	int (*o_precleanup)(struct obd_device *dev,
-			    enum obd_cleanup_stage cleanup_stage);
-	int (*o_cleanup)(struct obd_device *dev);
-	int (*o_process_config)(struct obd_device *dev, u32 len, void *data);
-	int (*o_postrecov)(struct obd_device *dev);
-	int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
-			  int priority);
-	int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
+	struct module *owner;
+	int (*iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
+			 void *karg, void *uarg);
+	int (*get_info)(const struct lu_env *env, struct obd_export *,
+			__u32 keylen, void *key, __u32 *vallen, void *val,
+			struct lov_stripe_md *lsm);
+	int (*set_info_async)(const struct lu_env *, struct obd_export *,
+			      __u32 keylen, void *key,
+			      __u32 vallen, void *val,
+			      struct ptlrpc_request_set *set);
+	int (*attach)(struct obd_device *dev, u32 len, void *data);
+	int (*detach)(struct obd_device *dev);
+	int (*setup)(struct obd_device *dev, struct lustre_cfg *cfg);
+	int (*precleanup)(struct obd_device *dev,
+			  enum obd_cleanup_stage cleanup_stage);
+	int (*cleanup)(struct obd_device *dev);
+	int (*process_config)(struct obd_device *dev, u32 len, void *data);
+	int (*postrecov)(struct obd_device *dev);
+	int (*add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
+			int priority);
+	int (*del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
 	/* connect to the target device with given connection
 	 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
 	 * granted by the target, which are guaranteed to be a subset of flags
 	 * asked for. If @ocd == NULL, use default parameters. */
-	int (*o_connect)(const struct lu_env *env,
-			 struct obd_export **exp, struct obd_device *src,
-			 struct obd_uuid *cluuid, struct obd_connect_data *ocd,
+	int (*connect)(const struct lu_env *env,
+		       struct obd_export **exp, struct obd_device *src,
+		       struct obd_uuid *cluuid, struct obd_connect_data *ocd,
+		       void *localdata);
+	int (*reconnect)(const struct lu_env *env,
+			 struct obd_export *exp, struct obd_device *src,
+			 struct obd_uuid *cluuid,
+			 struct obd_connect_data *ocd,
 			 void *localdata);
-	int (*o_reconnect)(const struct lu_env *env,
-			   struct obd_export *exp, struct obd_device *src,
-			   struct obd_uuid *cluuid,
-			   struct obd_connect_data *ocd,
-			   void *localdata);
-	int (*o_disconnect)(struct obd_export *exp);
+	int (*disconnect)(struct obd_export *exp);
 
 	/* Initialize/finalize fids infrastructure. */
-	int (*o_fid_init)(struct obd_device *obd,
-			  struct obd_export *exp, enum lu_cli_type type);
-	int (*o_fid_fini)(struct obd_device *obd);
+	int (*fid_init)(struct obd_device *obd,
+			struct obd_export *exp, enum lu_cli_type type);
+	int (*fid_fini)(struct obd_device *obd);
 
 	/* Allocate new fid according to passed @hint. */
-	int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
-			   struct md_op_data *op_data);
+	int (*fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
+			 struct md_op_data *op_data);
 
 	/*
 	 * Object with @fid is getting deleted, we may want to do something
 	 * about this.
 	 */
-	int (*o_statfs)(const struct lu_env *, struct obd_export *exp,
-			struct obd_statfs *osfs, __u64 max_age, __u32 flags);
-	int (*o_statfs_async)(struct obd_export *exp, struct obd_info *oinfo,
-			      __u64 max_age, struct ptlrpc_request_set *set);
-	int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
-			struct lov_stripe_md *mem_src);
-	int (*o_unpackmd)(struct obd_export *exp,
-			  struct lov_stripe_md **mem_tgt,
-			  struct lov_mds_md *disk_src, int disk_len);
-	int (*o_preallocate)(struct lustre_handle *, u32 *req, u64 *ids);
-	int (*o_create)(const struct lu_env *env, struct obd_export *exp,
-			struct obdo *oa, struct lov_stripe_md **ea,
-			struct obd_trans_info *oti);
-	int (*o_destroy)(const struct lu_env *env, struct obd_export *exp,
-			 struct obdo *oa, struct lov_stripe_md *ea,
-			 struct obd_trans_info *oti, struct obd_export *md_exp);
-	int (*o_setattr)(const struct lu_env *, struct obd_export *exp,
-			 struct obd_info *oinfo, struct obd_trans_info *oti);
-	int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
-			       struct obd_trans_info *oti,
-			       struct ptlrpc_request_set *rqset);
-	int (*o_getattr)(const struct lu_env *env, struct obd_export *exp,
-			 struct obd_info *oinfo);
-	int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
-			       struct ptlrpc_request_set *set);
-	int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
-			    u64 size, int shrink);
-	int (*o_preprw)(const struct lu_env *env, int cmd,
-			struct obd_export *exp, struct obdo *oa, int objcount,
-			struct obd_ioobj *obj, struct niobuf_remote *remote,
-			int *nr_pages, struct niobuf_local *local,
-			struct obd_trans_info *oti);
-	int (*o_commitrw)(const struct lu_env *env, int cmd,
-			  struct obd_export *exp, struct obdo *oa,
-			  int objcount, struct obd_ioobj *obj,
-			  struct niobuf_remote *remote, int pages,
-			  struct niobuf_local *local,
-			  struct obd_trans_info *oti, int rc);
-	int (*o_find_cbdata)(struct obd_export *, struct lov_stripe_md *,
-			     ldlm_iterator_t it, void *data);
-	int (*o_init_export)(struct obd_export *exp);
-	int (*o_destroy_export)(struct obd_export *exp);
+	int (*statfs)(const struct lu_env *, struct obd_export *exp,
+		      struct obd_statfs *osfs, __u64 max_age, __u32 flags);
+	int (*statfs_async)(struct obd_export *exp, struct obd_info *oinfo,
+			    __u64 max_age, struct ptlrpc_request_set *set);
+	int (*packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
+		      struct lov_stripe_md *mem_src);
+	int (*unpackmd)(struct obd_export *exp,
+			struct lov_stripe_md **mem_tgt,
+			struct lov_mds_md *disk_src, int disk_len);
+	int (*preallocate)(struct lustre_handle *, u32 *req, u64 *ids);
+	int (*create)(const struct lu_env *env, struct obd_export *exp,
+		      struct obdo *oa, struct lov_stripe_md **ea,
+		      struct obd_trans_info *oti);
+	int (*destroy)(const struct lu_env *env, struct obd_export *exp,
+		       struct obdo *oa, struct lov_stripe_md *ea,
+		       struct obd_trans_info *oti, struct obd_export *md_exp);
+	int (*setattr)(const struct lu_env *, struct obd_export *exp,
+		       struct obd_info *oinfo, struct obd_trans_info *oti);
+	int (*setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
+			     struct obd_trans_info *oti,
+			     struct ptlrpc_request_set *rqset);
+	int (*getattr)(const struct lu_env *env, struct obd_export *exp,
+		       struct obd_info *oinfo);
+	int (*getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
+			     struct ptlrpc_request_set *set);
+	int (*adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
+			  u64 size, int shrink);
+	int (*preprw)(const struct lu_env *env, int cmd,
+		      struct obd_export *exp, struct obdo *oa, int objcount,
+		      struct obd_ioobj *obj, struct niobuf_remote *remote,
+		      int *nr_pages, struct niobuf_local *local,
+		      struct obd_trans_info *oti);
+	int (*commitrw)(const struct lu_env *env, int cmd,
+			struct obd_export *exp, struct obdo *oa,
+			int objcount, struct obd_ioobj *obj,
+			struct niobuf_remote *remote, int pages,
+			struct niobuf_local *local,
+			struct obd_trans_info *oti, int rc);
+	int (*find_cbdata)(struct obd_export *, struct lov_stripe_md *,
+			   ldlm_iterator_t it, void *data);
+	int (*init_export)(struct obd_export *exp);
+	int (*destroy_export)(struct obd_export *exp);
 
 	/* metadata-only methods */
-	int (*o_import_event)(struct obd_device *, struct obd_import *,
-			      enum obd_import_event);
+	int (*import_event)(struct obd_device *, struct obd_import *,
+			    enum obd_import_event);
 
-	int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
-			enum obd_notify_event ev, void *data);
+	int (*notify)(struct obd_device *obd, struct obd_device *watched,
+		      enum obd_notify_event ev, void *data);
 
-	int (*o_health_check)(const struct lu_env *env, struct obd_device *);
-	struct obd_uuid *(*o_get_uuid)(struct obd_export *exp);
+	int (*health_check)(const struct lu_env *env, struct obd_device *);
+	struct obd_uuid *(*get_uuid)(struct obd_export *exp);
 
 	/* quota methods */
-	int (*o_quotacheck)(struct obd_device *, struct obd_export *,
-			    struct obd_quotactl *);
-	int (*o_quotactl)(struct obd_device *, struct obd_export *,
+	int (*quotacheck)(struct obd_device *, struct obd_export *,
 			  struct obd_quotactl *);
+	int (*quotactl)(struct obd_device *, struct obd_export *,
+			struct obd_quotactl *);
 
 	/* pools methods */
-	int (*o_pool_new)(struct obd_device *obd, char *poolname);
-	int (*o_pool_del)(struct obd_device *obd, char *poolname);
-	int (*o_pool_add)(struct obd_device *obd, char *poolname,
-			  char *ostname);
-	int (*o_pool_rem)(struct obd_device *obd, char *poolname,
-			  char *ostname);
-	void (*o_getref)(struct obd_device *obd);
-	void (*o_putref)(struct obd_device *obd);
+	int (*pool_new)(struct obd_device *obd, char *poolname);
+	int (*pool_del)(struct obd_device *obd, char *poolname);
+	int (*pool_add)(struct obd_device *obd, char *poolname,
+			char *ostname);
+	int (*pool_rem)(struct obd_device *obd, char *poolname,
+			char *ostname);
+	void (*getref)(struct obd_device *obd);
+	void (*putref)(struct obd_device *obd);
 	/*
 	 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
 	 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
@@ -1124,89 +1124,89 @@ struct md_open_data {
 struct lookup_intent;
 
 struct md_ops {
-	int (*m_getstatus)(struct obd_export *, struct lu_fid *);
-	int (*m_null_inode)(struct obd_export *, const struct lu_fid *);
-	int (*m_find_cbdata)(struct obd_export *, const struct lu_fid *,
-			     ldlm_iterator_t, void *);
-	int (*m_close)(struct obd_export *, struct md_op_data *,
-		       struct md_open_data *, struct ptlrpc_request **);
-	int (*m_create)(struct obd_export *, struct md_op_data *,
-			const void *, int, int, __u32, __u32, cfs_cap_t,
-			__u64, struct ptlrpc_request **);
-	int (*m_done_writing)(struct obd_export *, struct md_op_data  *,
-			      struct md_open_data *);
-	int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
-			 struct lookup_intent *, struct md_op_data *,
-			 struct lustre_handle *, void *, int,
-			 struct ptlrpc_request **, __u64);
-	int (*m_getattr)(struct obd_export *, struct md_op_data *,
-			 struct ptlrpc_request **);
-	int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
-			      struct ptlrpc_request **);
-	int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
-			     void *, int, struct lookup_intent *, int,
-			     struct ptlrpc_request **,
-			     ldlm_blocking_callback, __u64);
-	int (*m_link)(struct obd_export *, struct md_op_data *,
+	int (*getstatus)(struct obd_export *, struct lu_fid *);
+	int (*null_inode)(struct obd_export *, const struct lu_fid *);
+	int (*find_cbdata)(struct obd_export *, const struct lu_fid *,
+			   ldlm_iterator_t, void *);
+	int (*close)(struct obd_export *, struct md_op_data *,
+		     struct md_open_data *, struct ptlrpc_request **);
+	int (*create)(struct obd_export *, struct md_op_data *,
+		      const void *, int, int, __u32, __u32, cfs_cap_t,
+		      __u64, struct ptlrpc_request **);
+	int (*done_writing)(struct obd_export *, struct md_op_data  *,
+			    struct md_open_data *);
+	int (*enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
+		       struct lookup_intent *, struct md_op_data *,
+		       struct lustre_handle *, void *, int,
+		       struct ptlrpc_request **, __u64);
+	int (*getattr)(struct obd_export *, struct md_op_data *,
+		       struct ptlrpc_request **);
+	int (*getattr_name)(struct obd_export *, struct md_op_data *,
+			    struct ptlrpc_request **);
+	int (*intent_lock)(struct obd_export *, struct md_op_data *,
+			   void *, int, struct lookup_intent *, int,
+			   struct ptlrpc_request **,
+			   ldlm_blocking_callback, __u64);
+	int (*link)(struct obd_export *, struct md_op_data *,
+		    struct ptlrpc_request **);
+	int (*rename)(struct obd_export *, struct md_op_data *,
+		      const char *, int, const char *, int,
 		      struct ptlrpc_request **);
-	int (*m_rename)(struct obd_export *, struct md_op_data *,
-			const char *, int, const char *, int,
-			struct ptlrpc_request **);
-	int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
-			   const struct lu_fid *,
+	int (*is_subdir)(struct obd_export *, const struct lu_fid *,
+			 const struct lu_fid *,
 			   struct ptlrpc_request **);
-	int (*m_setattr)(struct obd_export *, struct md_op_data *, void *,
-			 int, void *, int, struct ptlrpc_request **,
+	int (*setattr)(struct obd_export *, struct md_op_data *, void *,
+		       int, void *, int, struct ptlrpc_request **,
 			 struct md_open_data **mod);
-	int (*m_sync)(struct obd_export *, const struct lu_fid *,
+	int (*sync)(struct obd_export *, const struct lu_fid *,
+		    struct ptlrpc_request **);
+	int (*readpage)(struct obd_export *, struct md_op_data *,
+			struct page **, struct ptlrpc_request **);
+
+	int (*unlink)(struct obd_export *, struct md_op_data *,
 		      struct ptlrpc_request **);
-	int (*m_readpage)(struct obd_export *, struct md_op_data *,
-			  struct page **, struct ptlrpc_request **);
 
-	int (*m_unlink)(struct obd_export *, struct md_op_data *,
+	int (*setxattr)(struct obd_export *, const struct lu_fid *,
+			u64, const char *, const char *, int, int, int, __u32,
 			struct ptlrpc_request **);
 
-	int (*m_setxattr)(struct obd_export *, const struct lu_fid *,
-			  u64, const char *, const char *, int, int, int, __u32,
-			  struct ptlrpc_request **);
-
-	int (*m_getxattr)(struct obd_export *, const struct lu_fid *,
-			  u64, const char *, const char *, int, int, int,
-			  struct ptlrpc_request **);
+	int (*getxattr)(struct obd_export *, const struct lu_fid *,
+			u64, const char *, const char *, int, int, int,
+			struct ptlrpc_request **);
 
-	int (*m_init_ea_size)(struct obd_export *, int, int, int, int);
+	int (*init_ea_size)(struct obd_export *, int, int, int, int);
 
-	int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
-			       struct obd_export *, struct obd_export *,
-			       struct lustre_md *);
+	int (*get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
+			     struct obd_export *, struct obd_export *,
+			     struct lustre_md *);
 
-	int (*m_free_lustre_md)(struct obd_export *, struct lustre_md *);
+	int (*free_lustre_md)(struct obd_export *, struct lustre_md *);
 
-	int (*m_set_open_replay_data)(struct obd_export *,
-				      struct obd_client_handle *,
-				      struct lookup_intent *);
-	int (*m_clear_open_replay_data)(struct obd_export *,
-					struct obd_client_handle *);
-	int (*m_set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
+	int (*set_open_replay_data)(struct obd_export *,
+				    struct obd_client_handle *,
+				    struct lookup_intent *);
+	int (*clear_open_replay_data)(struct obd_export *,
+				      struct obd_client_handle *);
+	int (*set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
 
-	ldlm_mode_t (*m_lock_match)(struct obd_export *, __u64,
-				    const struct lu_fid *, ldlm_type_t,
-				    ldlm_policy_data_t *, ldlm_mode_t,
-				    struct lustre_handle *);
+	ldlm_mode_t (*lock_match)(struct obd_export *, __u64,
+				  const struct lu_fid *, ldlm_type_t,
+				  ldlm_policy_data_t *, ldlm_mode_t,
+				  struct lustre_handle *);
 
-	int (*m_cancel_unused)(struct obd_export *, const struct lu_fid *,
-			       ldlm_policy_data_t *, ldlm_mode_t,
-			       ldlm_cancel_flags_t flags, void *opaque);
+	int (*cancel_unused)(struct obd_export *, const struct lu_fid *,
+			     ldlm_policy_data_t *, ldlm_mode_t,
+			     ldlm_cancel_flags_t flags, void *opaque);
 
-	int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
-				 __u32, struct ptlrpc_request **);
+	int (*get_remote_perm)(struct obd_export *, const struct lu_fid *,
+			       __u32, struct ptlrpc_request **);
 
-	int (*m_intent_getattr_async)(struct obd_export *,
-				      struct md_enqueue_info *,
-				      struct ldlm_enqueue_info *);
+	int (*intent_getattr_async)(struct obd_export *,
+				    struct md_enqueue_info *,
+				    struct ldlm_enqueue_info *);
 
-	int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
-				 struct lu_fid *, __u64 *bits);
+	int (*revalidate_lock)(struct obd_export *, struct lookup_intent *,
+			       struct lu_fid *, __u64 *bits);
 
 	/*
 	 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
diff --git a/drivers/staging/lustre/lustre/include/obd_cksum.h b/drivers/staging/lustre/lustre/include/obd_cksum.h
index a0099d71773a..01db60405393 100644
--- a/drivers/staging/lustre/lustre/include/obd_cksum.h
+++ b/drivers/staging/lustre/lustre/include/obd_cksum.h
@@ -133,29 +133,6 @@ static inline cksum_type_t cksum_types_supported_client(void)
 	return ret;
 }
 
-/* Server uses algos that perform at 50% or better of the Adler */
-static inline cksum_type_t cksum_types_supported_server(void)
-{
-	int	     base_speed;
-	cksum_type_t    ret = OBD_CKSUM_ADLER;
-
-	CDEBUG(D_INFO, "Crypto hash speed: crc %d, crc32c %d, adler %d\n",
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER)));
-
-	base_speed = cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER)) / 2;
-
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)) >=
-	    base_speed)
-		ret |= OBD_CKSUM_CRC32C;
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)) >=
-	    base_speed)
-		ret |= OBD_CKSUM_CRC32;
-
-	return ret;
-}
-
 /* Select the best checksum algorithm among those supplied in the cksum_types
  * input.
  *
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index fd5f3731db92..97d80397503c 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -270,8 +270,8 @@ void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
 void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid);
 
 #define OBT(dev)	(dev)->obd_type
-#define OBP(dev, op)    (dev)->obd_type->typ_dt_ops->o_ ## op
-#define MDP(dev, op)    (dev)->obd_type->typ_md_ops->m_ ## op
+#define OBP(dev, op)    (dev)->obd_type->typ_dt_ops->op
+#define MDP(dev, op)    (dev)->obd_type->typ_md_ops->op
 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
 
 /* Ensure obd_setup: used for cleanup which must be called
@@ -301,9 +301,9 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 }
 
 #define OBD_COUNTER_OFFSET(op)				  \
-	((offsetof(struct obd_ops, o_ ## op) -		  \
-	  offsetof(struct obd_ops, o_iocontrol))		\
-	 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
+	((offsetof(struct obd_ops, op) -		  \
+	  offsetof(struct obd_ops, iocontrol))		\
+	 / sizeof(((struct obd_ops *)(0))->iocontrol))
 
 #define OBD_COUNTER_INCREMENT(obdx, op)			   \
 	if ((obdx)->obd_stats != NULL) {			  \
@@ -324,9 +324,9 @@ static inline int obd_check_dev_active(struct obd_device *obd)
 	}
 
 #define MD_COUNTER_OFFSET(op)				   \
-	((offsetof(struct md_ops, m_ ## op) -		   \
-	  offsetof(struct md_ops, m_getstatus))		 \
-	 / sizeof(((struct md_ops *)(0))->m_getstatus))
+	((offsetof(struct md_ops, op) -		   \
+	  offsetof(struct md_ops, getstatus))		 \
+	 / sizeof(((struct md_ops *)(0))->getstatus))
 
 #define MD_COUNTER_INCREMENT(obdx, op)			   \
 	if ((obd)->md_stats != NULL) {			   \
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index a22a5308fb48..d031437c0528 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index 0b8e4d2175ae..34dde7dede74 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -427,7 +427,7 @@ static void ccc_object_size_lock(struct cl_object *obj)
 {
 	struct inode *inode = ccc_object_inode(obj);
 
-	cl_isize_lock(inode);
+	ll_inode_size_lock(inode);
 	cl_object_attr_lock(obj);
 }
 
@@ -436,7 +436,7 @@ static void ccc_object_size_unlock(struct cl_object *obj)
 	struct inode *inode = ccc_object_inode(obj);
 
 	cl_object_attr_unlock(obj);
-	cl_isize_unlock(inode);
+	ll_inode_size_unlock(inode);
 }
 
 /*****************************************************************************
diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index 39b571721881..a2ea8e5b93d8 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -96,18 +96,6 @@ static inline int extent_equal(struct interval_node_extent *e1,
 	return (e1->start == e2->start) && (e1->end == e2->end);
 }
 
-static inline int node_compare(struct interval_node *n1,
-			       struct interval_node *n2)
-{
-	return extent_compare(&n1->in_extent, &n2->in_extent);
-}
-
-static inline int node_equal(struct interval_node *n1,
-			     struct interval_node *n2)
-{
-	return extent_equal(&n1->in_extent, &n2->in_extent);
-}
-
 static inline __u64 max_u64(__u64 x, __u64 y)
 {
 	return x > y ? x : y;
@@ -278,14 +266,14 @@ struct interval_node *interval_insert(struct interval_node *node,
 	p = root;
 	while (*p) {
 		parent = *p;
-		if (node_equal(parent, node))
+		if (extent_equal(&parent->in_extent, &node->in_extent))
 			return parent;
 
 		/* max_high field must be updated after each iteration */
 		if (parent->in_max_high < interval_high(node))
 			parent->in_max_high = interval_high(node);
 
-		if (node_compare(node, parent) < 0)
+		if (extent_compare(&node->in_extent, &parent->in_extent) < 0)
 			p = &parent->in_left;
 		else
 			p = &parent->in_right;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
index c787888eb8af..9c70f31ea56e 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
@@ -149,7 +149,7 @@ static inline int lock_mode_to_index(ldlm_mode_t mode)
 	int index;
 
 	LASSERT(mode != 0);
-	LASSERT(IS_PO2(mode));
+	LASSERT(is_power_of_2(mode));
 	for (index = -1; mode; index++)
 		mode >>= 1;
 	LASSERT(index < LCK_MODE_NUM);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
index db3c9b7af7d5..849cc98df7dd 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
index ccce1e503120..3c8d4413d976 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 7f8c70056ffd..cf9ec0cfe247 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index ca115119501a..79aeb2bf6c8e 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index 1a4eef64658f..3d7c137d223a 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -176,11 +176,6 @@ enum {
 	LDLM_POOL_LAST_STAT
 };
 
-static inline struct ldlm_namespace *ldlm_pl2ns(struct ldlm_pool *pl)
-{
-	return container_of(pl, struct ldlm_namespace, ns_pool);
-}
-
 /**
  * Calculates suggested grant_step in % of available locks for passed
  * \a period. This is later used in grant_plan calculations.
@@ -213,22 +208,6 @@ static inline int ldlm_pool_t2gsp(unsigned int t)
 }
 
 /**
- * Returns current \a pl limit.
- */
-static __u32 ldlm_pool_get_limit(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_limit);
-}
-
-/**
- * Sets passed \a limit to \a pl.
- */
-static void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
-{
-	atomic_set(&pl->pl_limit, limit);
-}
-
-/**
  * Recalculates next stats on passed \a pl.
  *
  * \pre ->pl_lock is locked.
@@ -254,7 +233,8 @@ static void ldlm_pool_recalc_stats(struct ldlm_pool *pl)
 }
 
 /**
- * Sets SLV and Limit from ldlm_pl2ns(pl)->ns_obd tp passed \a pl.
+ * Sets SLV and Limit from container_of(pl, struct ldlm_namespace,
+ * ns_pool)->ns_obd tp passed \a pl.
  */
 static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 {
@@ -264,11 +244,12 @@ static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
 	 * Get new SLV and Limit from obd which is updated with coming
 	 * RPCs.
 	 */
-	obd = ldlm_pl2ns(pl)->ns_obd;
+	obd = container_of(pl, struct ldlm_namespace,
+			   ns_pool)->ns_obd;
 	LASSERT(obd != NULL);
 	read_lock(&obd->obd_pool_lock);
 	pl->pl_server_lock_volume = obd->obd_pool_slv;
-	ldlm_pool_set_limit(pl, obd->obd_pool_limit);
+	atomic_set(&pl->pl_limit, obd->obd_pool_limit);
 	read_unlock(&obd->obd_pool_lock);
 }
 
@@ -304,7 +285,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
 	 */
-	if (!ns_connect_lru_resize(ldlm_pl2ns(pl))) {
+	if (!ns_connect_lru_resize(container_of(pl, struct ldlm_namespace,
+						ns_pool))) {
 		ret = 0;
 		goto out;
 	}
@@ -315,7 +297,8 @@ static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
 	 * It may be called when SLV has changed much, this is why we do not
 	 * take into account pl->pl_recalc_time here.
 	 */
-	ret = ldlm_cancel_lru(ldlm_pl2ns(pl), 0, LCF_ASYNC, LDLM_CANCEL_LRUR);
+	ret = ldlm_cancel_lru(container_of(pl, struct ldlm_namespace, ns_pool),
+			      0, LCF_ASYNC, LDLM_CANCEL_LRUR);
 
 out:
 	spin_lock(&pl->pl_lock);
@@ -341,7 +324,7 @@ static int ldlm_cli_pool_shrink(struct ldlm_pool *pl,
 	struct ldlm_namespace *ns;
 	int unused;
 
-	ns = ldlm_pl2ns(pl);
+	ns = container_of(pl, struct ldlm_namespace, ns_pool);
 
 	/*
 	 * Do not cancel locks in case lru resize is disabled for this ns.
@@ -453,7 +436,7 @@ static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused)
 	spin_lock(&pl->pl_lock);
 	slv = pl->pl_server_lock_volume;
 	clv = pl->pl_client_lock_volume;
-	limit = ldlm_pool_get_limit(pl);
+	limit = atomic_read(&pl->pl_limit);
 	granted = atomic_read(&pl->pl_granted);
 	grant_rate = atomic_read(&pl->pl_grant_rate);
 	cancel_rate = atomic_read(&pl->pl_cancel_rate);
@@ -558,7 +541,8 @@ static struct kobj_type ldlm_pl_ktype = {
 
 static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	int err;
 
 	init_completion(&pl->pl_kobj_unregister);
@@ -570,7 +554,8 @@ static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
 
 static int ldlm_pool_debugfs_init(struct ldlm_pool *pl)
 {
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
+	struct ldlm_namespace *ns = container_of(pl, struct ldlm_namespace,
+						 ns_pool);
 	struct dentry *debugfs_ns_parent;
 	struct lprocfs_vars pool_vars[2];
 	char *var_name = NULL;
@@ -685,7 +670,7 @@ int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
 	snprintf(pl->pl_name, sizeof(pl->pl_name), "ldlm-pool-%s-%d",
 		 ldlm_ns_name(ns), idx);
 
-	ldlm_pool_set_limit(pl, 1);
+	atomic_set(&pl->pl_limit, 1);
 	pl->pl_server_lock_volume = 0;
 	pl->pl_ops = &ldlm_cli_pool_ops;
 	pl->pl_recalc_period = LDLM_POOL_CLI_DEF_RECALC_PERIOD;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index fdf81b87aad7..b9eb37762434 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index c0a54bf406ca..0ae610015b7c 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1154,8 +1154,6 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 			CERROR("%s: lvbo_init failed for resource %#llx:%#llx: rc = %d\n",
 			       ns->ns_obd->obd_name, name->name[0],
 			       name->name[1], rc);
-			kfree(res->lr_lvb_data);
-			res->lr_lvb_data = NULL;
 			res->lr_lvb_len = rc;
 			mutex_unlock(&res->lr_lvb_mutex);
 			ldlm_resource_putref(res);
diff --git a/drivers/staging/lustre/lustre/libcfs/debug.c b/drivers/staging/lustre/lustre/libcfs/debug.c
index 1d1c67164418..0b38dad13546 100644
--- a/drivers/staging/lustre/lustre/libcfs/debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/debug.c
@@ -94,17 +94,14 @@ static struct kernel_param_ops param_ops_debugmb = {
 static unsigned int libcfs_debug_mb;
 module_param(libcfs_debug_mb, debugmb, 0644);
 MODULE_PARM_DESC(libcfs_debug_mb, "Total debug buffer size.");
-EXPORT_SYMBOL(libcfs_debug_mb);
 
 unsigned int libcfs_printk = D_CANTMASK;
 module_param(libcfs_printk, uint, 0644);
 MODULE_PARM_DESC(libcfs_printk, "Lustre kernel debug console mask");
-EXPORT_SYMBOL(libcfs_printk);
 
 unsigned int libcfs_console_ratelimit = 1;
 module_param(libcfs_console_ratelimit, uint, 0644);
 MODULE_PARM_DESC(libcfs_console_ratelimit, "Lustre kernel debug console ratelimit (0 to disable)");
-EXPORT_SYMBOL(libcfs_console_ratelimit);
 
 static int param_set_delay_minmax(const char *val,
 				  const struct kernel_param *kp,
@@ -135,9 +132,7 @@ static int param_get_delay(char *buffer, const struct kernel_param *kp)
 }
 
 unsigned int libcfs_console_max_delay;
-EXPORT_SYMBOL(libcfs_console_max_delay);
 unsigned int libcfs_console_min_delay;
-EXPORT_SYMBOL(libcfs_console_min_delay);
 
 static int param_set_console_max_delay(const char *val,
 				       const struct kernel_param *kp)
@@ -207,10 +202,8 @@ static struct kernel_param_ops param_ops_uintpos = {
 unsigned int libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
 module_param(libcfs_console_backoff, uintpos, 0644);
 MODULE_PARM_DESC(libcfs_console_backoff, "Lustre kernel debug console backoff factor");
-EXPORT_SYMBOL(libcfs_console_backoff);
 
 unsigned int libcfs_debug_binary = 1;
-EXPORT_SYMBOL(libcfs_debug_binary);
 
 unsigned int libcfs_stack = 3 * THREAD_SIZE / 4;
 EXPORT_SYMBOL(libcfs_stack);
@@ -221,7 +214,6 @@ EXPORT_SYMBOL(libcfs_catastrophe);
 unsigned int libcfs_panic_on_lbug = 1;
 module_param(libcfs_panic_on_lbug, uint, 0644);
 MODULE_PARM_DESC(libcfs_panic_on_lbug, "Lustre kernel panic on LBUG");
-EXPORT_SYMBOL(libcfs_panic_on_lbug);
 
 static wait_queue_head_t debug_ctlwq;
 
@@ -512,9 +504,9 @@ int libcfs_debug_init(unsigned long bufsize)
 	}
 
 	if (libcfs_debug_file_path != NULL) {
-		strncpy(libcfs_debug_file_path_arr,
-			libcfs_debug_file_path, PATH_MAX-1);
-		libcfs_debug_file_path_arr[PATH_MAX - 1] = '\0';
+		strlcpy(libcfs_debug_file_path_arr,
+			libcfs_debug_file_path,
+			sizeof(libcfs_debug_file_path_arr));
 	}
 
 	/* If libcfs_debug_mb is set to an invalid value or uninitialized
@@ -565,12 +557,3 @@ int libcfs_debug_mark_buffer(const char *text)
 
 #undef DEBUG_SUBSYSTEM
 #define DEBUG_SUBSYSTEM S_LNET
-
-void libcfs_debug_set_level(unsigned int debug_level)
-{
-	pr_warn("Lustre: Setting portals debug level to %08x\n",
-	       debug_level);
-	libcfs_debug = debug_level;
-}
-
-EXPORT_SYMBOL(libcfs_debug_set_level);
diff --git a/drivers/staging/lustre/lustre/libcfs/fail.c b/drivers/staging/lustre/lustre/libcfs/fail.c
index d39fecebd12d..27831432d69a 100644
--- a/drivers/staging/lustre/lustre/libcfs/fail.c
+++ b/drivers/staging/lustre/lustre/libcfs/fail.c
@@ -26,7 +26,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -126,7 +126,7 @@ int __cfs_fail_timeout_set(__u32 id, __u32 value, int ms, int set)
 	int ret;
 
 	ret = __cfs_fail_check_set(id, value, set);
-	if (ret) {
+	if (ret && likely(ms > 0)) {
 		CERROR("cfs_fail_timeout id %x sleeping for %dms\n",
 		       id, ms);
 		set_current_state(TASK_UNINTERRUPTIBLE);
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 030874428952..4d50510434be 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -106,9 +106,10 @@
  *   Now we support both locked iteration & lockless iteration of hash
  *   table. Also, user can break the iteration by return 1 in callback.
  */
+#include <linux/seq_file.h>
+#include <linux/log2.h>
 
 #include "../../include/linux/libcfs/libcfs.h"
-#include <linux/seq_file.h>
 
 #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
 static unsigned int warn_on_depth = 8;
@@ -161,49 +162,49 @@ cfs_hash_rw_unlock(union cfs_hash_lock *lock, int exclusive)
 /** No lock hash */
 static struct cfs_hash_lock_ops cfs_hash_nl_lops = {
 	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_nl_lock,
-	.hs_bkt_unlock  = cfs_hash_nl_unlock,
+	.hs_unlock	= cfs_hash_nl_unlock,
+	.hs_bkt_lock	= cfs_hash_nl_lock,
+	.hs_bkt_unlock	= cfs_hash_nl_unlock,
 };
 
 /** no bucket lock, one spinlock to protect everything */
 static struct cfs_hash_lock_ops cfs_hash_nbl_lops = {
 	.hs_lock	= cfs_hash_spin_lock,
-	.hs_unlock      = cfs_hash_spin_unlock,
-	.hs_bkt_lock    = cfs_hash_nl_lock,
-	.hs_bkt_unlock  = cfs_hash_nl_unlock,
+	.hs_unlock	= cfs_hash_spin_unlock,
+	.hs_bkt_lock	= cfs_hash_nl_lock,
+	.hs_bkt_unlock	= cfs_hash_nl_unlock,
 };
 
 /** spin bucket lock, rehash is enabled */
 static struct cfs_hash_lock_ops cfs_hash_bkt_spin_lops = {
 	.hs_lock	= cfs_hash_rw_lock,
-	.hs_unlock      = cfs_hash_rw_unlock,
-	.hs_bkt_lock    = cfs_hash_spin_lock,
-	.hs_bkt_unlock  = cfs_hash_spin_unlock,
+	.hs_unlock	= cfs_hash_rw_unlock,
+	.hs_bkt_lock	= cfs_hash_spin_lock,
+	.hs_bkt_unlock	= cfs_hash_spin_unlock,
 };
 
 /** rw bucket lock, rehash is enabled */
 static struct cfs_hash_lock_ops cfs_hash_bkt_rw_lops = {
 	.hs_lock	= cfs_hash_rw_lock,
-	.hs_unlock      = cfs_hash_rw_unlock,
-	.hs_bkt_lock    = cfs_hash_rw_lock,
-	.hs_bkt_unlock  = cfs_hash_rw_unlock,
+	.hs_unlock	= cfs_hash_rw_unlock,
+	.hs_bkt_lock	= cfs_hash_rw_lock,
+	.hs_bkt_unlock	= cfs_hash_rw_unlock,
 };
 
 /** spin bucket lock, rehash is disabled */
 static struct cfs_hash_lock_ops cfs_hash_nr_bkt_spin_lops = {
 	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_spin_lock,
-	.hs_bkt_unlock  = cfs_hash_spin_unlock,
+	.hs_unlock	= cfs_hash_nl_unlock,
+	.hs_bkt_lock	= cfs_hash_spin_lock,
+	.hs_bkt_unlock	= cfs_hash_spin_unlock,
 };
 
 /** rw bucket lock, rehash is disabled */
 static struct cfs_hash_lock_ops cfs_hash_nr_bkt_rw_lops = {
 	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_rw_lock,
-	.hs_bkt_unlock  = cfs_hash_rw_unlock,
+	.hs_unlock	= cfs_hash_nl_unlock,
+	.hs_bkt_lock	= cfs_hash_rw_lock,
+	.hs_bkt_unlock	= cfs_hash_rw_unlock,
 };
 
 static void
@@ -280,7 +281,7 @@ cfs_hash_hh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
  */
 struct cfs_hash_head_dep {
 	struct hlist_head	hd_head;	/**< entries list */
-	unsigned int		hd_depth;       /**< list length */
+	unsigned int		hd_depth;	/**< list length */
 };
 
 static int
@@ -328,7 +329,7 @@ cfs_hash_hd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
  */
 struct cfs_hash_dhead {
 	struct hlist_head	dh_head;	/**< entries list */
-	struct hlist_node       *dh_tail;	/**< the last entry */
+	struct hlist_node	*dh_tail;	/**< the last entry */
 };
 
 static int
@@ -384,8 +385,8 @@ cfs_hash_dh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
  */
 struct cfs_hash_dhead_dep {
 	struct hlist_head	dd_head;	/**< entries list */
-	struct hlist_node       *dd_tail;	/**< the last entry */
-	unsigned int	    dd_depth;       /**< list length */
+	struct hlist_node	*dd_tail;	/**< the last entry */
+	unsigned int		dd_depth;	/**< list length */
 };
 
 static int
@@ -436,31 +437,31 @@ cfs_hash_dd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 }
 
 static struct cfs_hash_hlist_ops cfs_hash_hh_hops = {
-	.hop_hhead      = cfs_hash_hh_hhead,
-	.hop_hhead_size = cfs_hash_hh_hhead_size,
-	.hop_hnode_add  = cfs_hash_hh_hnode_add,
-	.hop_hnode_del  = cfs_hash_hh_hnode_del,
+	.hop_hhead	= cfs_hash_hh_hhead,
+	.hop_hhead_size	= cfs_hash_hh_hhead_size,
+	.hop_hnode_add	= cfs_hash_hh_hnode_add,
+	.hop_hnode_del	= cfs_hash_hh_hnode_del,
 };
 
 static struct cfs_hash_hlist_ops cfs_hash_hd_hops = {
-	.hop_hhead      = cfs_hash_hd_hhead,
-	.hop_hhead_size = cfs_hash_hd_hhead_size,
-	.hop_hnode_add  = cfs_hash_hd_hnode_add,
-	.hop_hnode_del  = cfs_hash_hd_hnode_del,
+	.hop_hhead	= cfs_hash_hd_hhead,
+	.hop_hhead_size	= cfs_hash_hd_hhead_size,
+	.hop_hnode_add	= cfs_hash_hd_hnode_add,
+	.hop_hnode_del	= cfs_hash_hd_hnode_del,
 };
 
 static struct cfs_hash_hlist_ops cfs_hash_dh_hops = {
-	.hop_hhead      = cfs_hash_dh_hhead,
-	.hop_hhead_size = cfs_hash_dh_hhead_size,
-	.hop_hnode_add  = cfs_hash_dh_hnode_add,
-	.hop_hnode_del  = cfs_hash_dh_hnode_del,
+	.hop_hhead	= cfs_hash_dh_hhead,
+	.hop_hhead_size	= cfs_hash_dh_hhead_size,
+	.hop_hnode_add	= cfs_hash_dh_hnode_add,
+	.hop_hnode_del	= cfs_hash_dh_hnode_del,
 };
 
 static struct cfs_hash_hlist_ops cfs_hash_dd_hops = {
-	.hop_hhead      = cfs_hash_dd_hhead,
-	.hop_hhead_size = cfs_hash_dd_hhead_size,
-	.hop_hnode_add  = cfs_hash_dd_hnode_add,
-	.hop_hnode_del  = cfs_hash_dd_hnode_del,
+	.hop_hhead	= cfs_hash_dd_hhead,
+	.hop_hhead_size	= cfs_hash_dd_hhead_size,
+	.hop_hnode_add	= cfs_hash_dd_hnode_add,
+	.hop_hnode_del	= cfs_hash_dd_hnode_del,
 };
 
 static void
@@ -529,7 +530,7 @@ void
 cfs_hash_bd_add_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		       struct hlist_node *hnode)
 {
-	int		rc;
+	int rc;
 
 	rc = hs->hs_hops->hop_hnode_add(hs, bd, hnode);
 	cfs_hash_bd_dep_record(hs, bd, rc);
@@ -572,7 +573,7 @@ cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
 {
 	struct cfs_hash_bucket *obkt = bd_old->bd_bucket;
 	struct cfs_hash_bucket *nbkt = bd_new->bd_bucket;
-	int		rc;
+	int rc;
 
 	if (cfs_hash_bd_compare(bd_old, bd_new) == 0)
 		return;
@@ -593,34 +594,33 @@ cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
 	if (unlikely(nbkt->hsb_version == 0))
 		nbkt->hsb_version++;
 }
-EXPORT_SYMBOL(cfs_hash_bd_move_locked);
 
 enum {
 	/** always set, for sanity (avoid ZERO intent) */
-	CFS_HS_LOOKUP_MASK_FIND     = BIT(0),
+	CFS_HS_LOOKUP_MASK_FIND	= BIT(0),
 	/** return entry with a ref */
-	CFS_HS_LOOKUP_MASK_REF      = BIT(1),
+	CFS_HS_LOOKUP_MASK_REF	= BIT(1),
 	/** add entry if not existing */
-	CFS_HS_LOOKUP_MASK_ADD      = BIT(2),
+	CFS_HS_LOOKUP_MASK_ADD	= BIT(2),
 	/** delete entry, ignore other masks */
-	CFS_HS_LOOKUP_MASK_DEL      = BIT(3),
+	CFS_HS_LOOKUP_MASK_DEL	= BIT(3),
 };
 
 enum cfs_hash_lookup_intent {
 	/** return item w/o refcount */
-	CFS_HS_LOOKUP_IT_PEEK       = CFS_HS_LOOKUP_MASK_FIND,
+	CFS_HS_LOOKUP_IT_PEEK	 = CFS_HS_LOOKUP_MASK_FIND,
 	/** return item with refcount */
-	CFS_HS_LOOKUP_IT_FIND       = (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_REF),
+	CFS_HS_LOOKUP_IT_FIND	 = (CFS_HS_LOOKUP_MASK_FIND |
+				    CFS_HS_LOOKUP_MASK_REF),
 	/** return item w/o refcount if existed, otherwise add */
-	CFS_HS_LOOKUP_IT_ADD	= (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_ADD),
+	CFS_HS_LOOKUP_IT_ADD	 = (CFS_HS_LOOKUP_MASK_FIND |
+				    CFS_HS_LOOKUP_MASK_ADD),
 	/** return item with refcount if existed, otherwise add */
-	CFS_HS_LOOKUP_IT_FINDADD    = (CFS_HS_LOOKUP_IT_FIND |
-				       CFS_HS_LOOKUP_MASK_ADD),
+	CFS_HS_LOOKUP_IT_FINDADD = (CFS_HS_LOOKUP_IT_FIND |
+				    CFS_HS_LOOKUP_MASK_ADD),
 	/** delete if existed */
-	CFS_HS_LOOKUP_IT_FINDDEL    = (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_DEL)
+	CFS_HS_LOOKUP_IT_FINDDEL = (CFS_HS_LOOKUP_MASK_FIND |
+				    CFS_HS_LOOKUP_MASK_DEL)
 };
 
 static struct hlist_node *
@@ -629,10 +629,10 @@ cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			  enum cfs_hash_lookup_intent intent)
 
 {
-	struct hlist_head  *hhead = cfs_hash_bd_hhead(hs, bd);
-	struct hlist_node  *ehnode;
-	struct hlist_node  *match;
-	int  intent_add = (intent & CFS_HS_LOOKUP_MASK_ADD) != 0;
+	struct hlist_head *hhead = cfs_hash_bd_hhead(hs, bd);
+	struct hlist_node *ehnode;
+	struct hlist_node *match;
+	int intent_add = (intent & CFS_HS_LOOKUP_MASK_ADD) != 0;
 
 	/* with this function, we can avoid a lot of useless refcount ops,
 	 * which are expensive atomic operations most time. */
@@ -665,7 +665,8 @@ cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 }
 
 struct hlist_node *
-cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
+cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
+			  const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_FIND);
@@ -673,40 +674,20 @@ cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const voi
 EXPORT_SYMBOL(cfs_hash_bd_lookup_locked);
 
 struct hlist_node *
-cfs_hash_bd_peek_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
+cfs_hash_bd_peek_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
+			const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_PEEK);
 }
 EXPORT_SYMBOL(cfs_hash_bd_peek_locked);
 
-struct hlist_node *
-cfs_hash_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode,
-			   int noref)
-{
-	return cfs_hash_bd_lookup_intent(hs, bd, key, hnode,
-					 (!noref * CFS_HS_LOOKUP_MASK_REF) |
-					 CFS_HS_LOOKUP_IT_ADD);
-}
-EXPORT_SYMBOL(cfs_hash_bd_findadd_locked);
-
-struct hlist_node *
-cfs_hash_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode)
-{
-	/* hnode can be NULL, we find the first item with @key */
-	return cfs_hash_bd_lookup_intent(hs, bd, key, hnode,
-					 CFS_HS_LOOKUP_IT_FINDDEL);
-}
-EXPORT_SYMBOL(cfs_hash_bd_finddel_locked);
-
 static void
 cfs_hash_multi_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 		       unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
-	int		i;
+	int i;
 
 	/**
 	 * bds must be ascendantly ordered by bd->bd_bucket->hsb_index.
@@ -729,7 +710,7 @@ cfs_hash_multi_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 			 unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
-	int		i;
+	int i;
 
 	cfs_hash_for_each_bd(bds, n, i) {
 		if (prev != bds[i].bd_bucket) {
@@ -743,8 +724,8 @@ static struct hlist_node *
 cfs_hash_multi_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				unsigned n, const void *key)
 {
-	struct hlist_node  *ehnode;
-	unsigned	   i;
+	struct hlist_node *ehnode;
+	unsigned i;
 
 	cfs_hash_for_each_bd(bds, n, i) {
 		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, NULL,
@@ -756,13 +737,13 @@ cfs_hash_multi_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs,
-				 struct cfs_hash_bd *bds, unsigned n, const void *key,
+cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
+				 unsigned n, const void *key,
 				 struct hlist_node *hnode, int noref)
 {
-	struct hlist_node  *ehnode;
-	int		intent;
-	unsigned	   i;
+	struct hlist_node *ehnode;
+	int intent;
+	unsigned i;
 
 	LASSERT(hnode != NULL);
 	intent = (!noref * CFS_HS_LOOKUP_MASK_REF) | CFS_HS_LOOKUP_IT_PEEK;
@@ -777,7 +758,7 @@ cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs,
 	if (i == 1) { /* only one bucket */
 		cfs_hash_bd_add_locked(hs, &bds[0], hnode);
 	} else {
-		struct cfs_hash_bd      mybd;
+		struct cfs_hash_bd mybd;
 
 		cfs_hash_bd_get(hs, key, &mybd);
 		cfs_hash_bd_add_locked(hs, &mybd, hnode);
@@ -791,8 +772,8 @@ cfs_hash_multi_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				 unsigned n, const void *key,
 				 struct hlist_node *hnode)
 {
-	struct hlist_node  *ehnode;
-	unsigned	   i;
+	struct hlist_node *ehnode;
+	unsigned int i;
 
 	cfs_hash_for_each_bd(bds, n, i) {
 		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, hnode,
@@ -806,7 +787,7 @@ cfs_hash_multi_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 static void
 cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 {
-	int     rc;
+	int rc;
 
 	if (bd2->bd_bucket == NULL)
 		return;
@@ -831,7 +812,8 @@ cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 }
 
 void
-cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bds)
+cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key,
+		     struct cfs_hash_bd *bds)
 {
 	/* NB: caller should hold hs_lock.rw if REHASH is set */
 	cfs_hash_bd_from_key(hs, hs->hs_buckets,
@@ -848,21 +830,18 @@ cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *b
 
 	cfs_hash_bd_order(&bds[0], &bds[1]);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_get);
 
 void
 cfs_hash_dual_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_lock(hs, bds, 2, excl);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_lock);
 
 void
 cfs_hash_dual_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_unlock(hs, bds, 2, excl);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_unlock);
 
 struct hlist_node *
 cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
@@ -870,7 +849,6 @@ cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 {
 	return cfs_hash_multi_bd_lookup_locked(hs, bds, 2, key);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_lookup_locked);
 
 struct hlist_node *
 cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
@@ -880,7 +858,6 @@ cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 	return cfs_hash_multi_bd_findadd_locked(hs, bds, 2, key,
 						hnode, noref);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_findadd_locked);
 
 struct hlist_node *
 cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
@@ -888,13 +865,12 @@ cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 {
 	return cfs_hash_multi_bd_finddel_locked(hs, bds, 2, key, hnode);
 }
-EXPORT_SYMBOL(cfs_hash_dual_bd_finddel_locked);
 
 static void
 cfs_hash_buckets_free(struct cfs_hash_bucket **buckets,
 		      int bkt_size, int prev_size, int size)
 {
-	int     i;
+	int i;
 
 	for (i = prev_size; i < size; i++) {
 		if (buckets[i] != NULL)
@@ -914,7 +890,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
 			 unsigned int old_size, unsigned int new_size)
 {
 	struct cfs_hash_bucket **new_bkts;
-	int		 i;
+	int i;
 
 	LASSERT(old_size == 0 || old_bkts != NULL);
 
@@ -932,7 +908,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
 
 	for (i = old_size; i < new_size; i++) {
 		struct hlist_head *hhead;
-		struct cfs_hash_bd     bd;
+		struct cfs_hash_bd bd;
 
 		LIBCFS_ALLOC(new_bkts[i], cfs_hash_bkt_size(hs));
 		if (new_bkts[i] == NULL) {
@@ -969,7 +945,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
  * @max_bits - Maximum allowed hash table resize, in bits
  * @ops      - Registered hash table operations
  * @flags    - CFS_HASH_REHASH enable synamic hash resizing
- *	   - CFS_HASH_SORT enable chained hash sort
+ *	     - CFS_HASH_SORT enable chained hash sort
  */
 static int cfs_hash_rehash_worker(cfs_workitem_t *wi);
 
@@ -977,10 +953,10 @@ static int cfs_hash_rehash_worker(cfs_workitem_t *wi);
 static int cfs_hash_dep_print(cfs_workitem_t *wi)
 {
 	struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_dep_wi);
-	int	 dep;
-	int	 bkt;
-	int	 off;
-	int	 bits;
+	int dep;
+	int bkt;
+	int off;
+	int bits;
 
 	spin_lock(&hs->hs_dep_lock);
 	dep  = hs->hs_dep_max;
@@ -1031,7 +1007,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 		struct cfs_hash_ops *ops, unsigned flags)
 {
 	struct cfs_hash *hs;
-	int	 len;
+	int len;
 
 	CLASSERT(CFS_HASH_THETA_BITS < 15);
 
@@ -1062,8 +1038,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 	if (hs == NULL)
 		return NULL;
 
-	strncpy(hs->hs_name, name, len);
-	hs->hs_name[len - 1] = '\0';
+	strlcpy(hs->hs_name, name, len);
 	hs->hs_flags = flags;
 
 	atomic_set(&hs->hs_refcount, 1);
@@ -1077,7 +1052,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 	hs->hs_max_bits = (__u8)max_bits;
 	hs->hs_bkt_bits = (__u8)bkt_bits;
 
-	hs->hs_ops	 = ops;
+	hs->hs_ops	   = ops;
 	hs->hs_extra_bytes = extra_bytes;
 	hs->hs_rehash_bits = 0;
 	cfs_wi_init(&hs->hs_rehash_wi, hs, cfs_hash_rehash_worker);
@@ -1102,10 +1077,10 @@ EXPORT_SYMBOL(cfs_hash_create);
 static void
 cfs_hash_destroy(struct cfs_hash *hs)
 {
-	struct hlist_node     *hnode;
-	struct hlist_node     *pos;
-	struct cfs_hash_bd	 bd;
-	int		   i;
+	struct hlist_node *hnode;
+	struct hlist_node *pos;
+	struct cfs_hash_bd bd;
+	int i;
 
 	LASSERT(hs != NULL);
 	LASSERT(!cfs_hash_is_exiting(hs) &&
@@ -1223,8 +1198,8 @@ cfs_hash_rehash_inline(struct cfs_hash *hs)
 void
 cfs_hash_add(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
-	struct cfs_hash_bd   bd;
-	int	     bits;
+	struct cfs_hash_bd bd;
+	int bits;
 
 	LASSERT(hlist_unhashed(hnode));
 
@@ -1248,8 +1223,8 @@ cfs_hash_find_or_add(struct cfs_hash *hs, const void *key,
 		     struct hlist_node *hnode, int noref)
 {
 	struct hlist_node *ehnode;
-	struct cfs_hash_bd     bds[2];
-	int	       bits = 0;
+	struct cfs_hash_bd bds[2];
+	int bits = 0;
 
 	LASSERT(hlist_unhashed(hnode));
 
@@ -1261,7 +1236,7 @@ cfs_hash_find_or_add(struct cfs_hash *hs, const void *key,
 						 hnode, noref);
 	cfs_hash_dual_bd_unlock(hs, bds, 1);
 
-	if (ehnode == hnode) /* new item added */
+	if (ehnode == hnode)	/* new item added */
 		bits = cfs_hash_rehash_bits(hs);
 	cfs_hash_unlock(hs, 0);
 	if (bits > 0)
@@ -1276,7 +1251,8 @@ cfs_hash_find_or_add(struct cfs_hash *hs, const void *key,
  * Returns 0 on success or -EALREADY on key collisions.
  */
 int
-cfs_hash_add_unique(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
+cfs_hash_add_unique(struct cfs_hash *hs, const void *key,
+		    struct hlist_node *hnode)
 {
 	return cfs_hash_find_or_add(hs, key, hnode, 1) != hnode ?
 	       -EALREADY : 0;
@@ -1309,9 +1285,9 @@ EXPORT_SYMBOL(cfs_hash_findadd_unique);
 void *
 cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
-	void	   *obj  = NULL;
-	int	     bits = 0;
-	struct cfs_hash_bd   bds[2];
+	void *obj = NULL;
+	int bits = 0;
+	struct cfs_hash_bd bds[2];
 
 	cfs_hash_lock(hs, 0);
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 1);
@@ -1364,9 +1340,9 @@ EXPORT_SYMBOL(cfs_hash_del_key);
 void *
 cfs_hash_lookup(struct cfs_hash *hs, const void *key)
 {
-	void		 *obj = NULL;
-	struct hlist_node     *hnode;
-	struct cfs_hash_bd	 bds[2];
+	void *obj = NULL;
+	struct hlist_node *hnode;
+	struct cfs_hash_bd bds[2];
 
 	cfs_hash_lock(hs, 0);
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 0);
@@ -1383,7 +1359,8 @@ cfs_hash_lookup(struct cfs_hash *hs, const void *key)
 EXPORT_SYMBOL(cfs_hash_lookup);
 
 static void
-cfs_hash_for_each_enter(struct cfs_hash *hs) {
+cfs_hash_for_each_enter(struct cfs_hash *hs)
+{
 	LASSERT(!cfs_hash_is_exiting(hs));
 
 	if (!cfs_hash_with_rehash(hs))
@@ -1408,7 +1385,8 @@ cfs_hash_for_each_enter(struct cfs_hash *hs) {
 }
 
 static void
-cfs_hash_for_each_exit(struct cfs_hash *hs) {
+cfs_hash_for_each_exit(struct cfs_hash *hs)
+{
 	int remained;
 	int bits;
 
@@ -1439,14 +1417,15 @@ cfs_hash_for_each_exit(struct cfs_hash *hs) {
  */
 static __u64
 cfs_hash_for_each_tight(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
-			void *data, int remove_safe) {
-	struct hlist_node     *hnode;
-	struct hlist_node     *pos;
-	struct cfs_hash_bd	 bd;
-	__u64		 count = 0;
-	int		   excl  = !!remove_safe;
-	int		   loop  = 0;
-	int		   i;
+			void *data, int remove_safe)
+{
+	struct hlist_node *hnode;
+	struct hlist_node *pos;
+	struct cfs_hash_bd bd;
+	__u64 count = 0;
+	int excl = !!remove_safe;
+	int loop = 0;
+	int i;
 
 	cfs_hash_for_each_enter(hs);
 
@@ -1514,8 +1493,8 @@ void
 cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t func, void *data)
 {
 	struct cfs_hash_cond_arg arg = {
-		.func   = func,
-		.arg    = data,
+		.func	= func,
+		.arg	= data,
 	};
 
 	cfs_hash_for_each_tight(hs, cfs_hash_cond_del_locked, &arg, 1);
@@ -1523,16 +1502,17 @@ cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t func, void *data)
 EXPORT_SYMBOL(cfs_hash_cond_del);
 
 void
-cfs_hash_for_each(struct cfs_hash *hs,
-		  cfs_hash_for_each_cb_t func, void *data)
+cfs_hash_for_each(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
+		  void *data)
 {
 	cfs_hash_for_each_tight(hs, func, data, 0);
 }
 EXPORT_SYMBOL(cfs_hash_for_each);
 
 void
-cfs_hash_for_each_safe(struct cfs_hash *hs,
-		       cfs_hash_for_each_cb_t func, void *data) {
+cfs_hash_for_each_safe(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
+		       void *data)
+{
 	cfs_hash_for_each_tight(hs, func, data, 1);
 }
 EXPORT_SYMBOL(cfs_hash_for_each_safe);
@@ -1581,15 +1561,16 @@ EXPORT_SYMBOL(cfs_hash_size_get);
  */
 static int
 cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
-			void *data) {
+			void *data)
+{
 	struct hlist_node *hnode;
 	struct hlist_node *tmp;
-	struct cfs_hash_bd     bd;
-	__u32	     version;
-	int	       count = 0;
-	int	       stop_on_change;
-	int	       rc;
-	int	       i;
+	struct cfs_hash_bd bd;
+	__u32 version;
+	int count = 0;
+	int stop_on_change;
+	int rc;
+	int i;
 
 	stop_on_change = cfs_hash_with_rehash_key(hs) ||
 			 !cfs_hash_with_no_itemref(hs) ||
@@ -1645,8 +1626,9 @@ cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 }
 
 int
-cfs_hash_for_each_nolock(struct cfs_hash *hs,
-			 cfs_hash_for_each_cb_t func, void *data) {
+cfs_hash_for_each_nolock(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
+			 void *data)
+{
 	if (cfs_hash_with_no_lock(hs) ||
 	    cfs_hash_with_rehash_key(hs) ||
 	    !cfs_hash_with_no_itemref(hs))
@@ -1677,9 +1659,10 @@ EXPORT_SYMBOL(cfs_hash_for_each_nolock);
  * the required locking is in place to prevent concurrent insertions.
  */
 int
-cfs_hash_for_each_empty(struct cfs_hash *hs,
-			cfs_hash_for_each_cb_t func, void *data) {
-	unsigned  i = 0;
+cfs_hash_for_each_empty(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
+			void *data)
+{
+	unsigned i = 0;
 
 	if (cfs_hash_with_no_lock(hs))
 		return -EOPNOTSUPP;
@@ -1703,9 +1686,9 @@ void
 cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
 			cfs_hash_for_each_cb_t func, void *data)
 {
-	struct hlist_head   *hhead;
-	struct hlist_node   *hnode;
-	struct cfs_hash_bd       bd;
+	struct hlist_head *hhead;
+	struct hlist_node *hnode;
+	struct cfs_hash_bd bd;
 
 	cfs_hash_for_each_enter(hs);
 	cfs_hash_lock(hs, 0);
@@ -1721,7 +1704,7 @@ cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
 			break;
 	}
 	cfs_hash_bd_unlock(hs, &bd, 0);
- out:
+out:
 	cfs_hash_unlock(hs, 0);
 	cfs_hash_for_each_exit(hs);
 }
@@ -1736,10 +1719,11 @@ EXPORT_SYMBOL(cfs_hash_hlist_for_each);
    */
 void
 cfs_hash_for_each_key(struct cfs_hash *hs, const void *key,
-		      cfs_hash_for_each_cb_t func, void *data) {
-	struct hlist_node   *hnode;
-	struct cfs_hash_bd       bds[2];
-	unsigned	    i;
+		      cfs_hash_for_each_cb_t func, void *data)
+{
+	struct hlist_node *hnode;
+	struct cfs_hash_bd bds[2];
+	unsigned int i;
 
 	cfs_hash_lock(hs, 0);
 
@@ -1777,7 +1761,7 @@ EXPORT_SYMBOL(cfs_hash_for_each_key);
 void
 cfs_hash_rehash_cancel_locked(struct cfs_hash *hs)
 {
-	int     i;
+	int i;
 
 	/* need hold cfs_hash_lock(hs, 1) */
 	LASSERT(cfs_hash_with_rehash(hs) &&
@@ -1794,14 +1778,13 @@ cfs_hash_rehash_cancel_locked(struct cfs_hash *hs)
 	for (i = 2; cfs_hash_is_rehashing(hs); i++) {
 		cfs_hash_unlock(hs, 1);
 		/* raise console warning while waiting too long */
-		CDEBUG(IS_PO2(i >> 3) ? D_WARNING : D_INFO,
+		CDEBUG(is_power_of_2(i >> 3) ? D_WARNING : D_INFO,
 		       "hash %s is still rehashing, rescheded %d\n",
 		       hs->hs_name, i - 1);
 		cond_resched();
 		cfs_hash_lock(hs, 1);
 	}
 }
-EXPORT_SYMBOL(cfs_hash_rehash_cancel_locked);
 
 void
 cfs_hash_rehash_cancel(struct cfs_hash *hs)
@@ -1810,12 +1793,11 @@ cfs_hash_rehash_cancel(struct cfs_hash *hs)
 	cfs_hash_rehash_cancel_locked(hs);
 	cfs_hash_unlock(hs, 1);
 }
-EXPORT_SYMBOL(cfs_hash_rehash_cancel);
 
 int
 cfs_hash_rehash(struct cfs_hash *hs, int do_rehash)
 {
-	int     rc;
+	int rc;
 
 	LASSERT(cfs_hash_with_rehash(hs) && !cfs_hash_with_no_lock(hs));
 
@@ -1840,17 +1822,16 @@ cfs_hash_rehash(struct cfs_hash *hs, int do_rehash)
 
 	return cfs_hash_rehash_worker(&hs->hs_rehash_wi);
 }
-EXPORT_SYMBOL(cfs_hash_rehash);
 
 static int
 cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old)
 {
-	struct cfs_hash_bd      new;
-	struct hlist_head  *hhead;
-	struct hlist_node  *hnode;
-	struct hlist_node  *pos;
-	void	      *key;
-	int		c = 0;
+	struct cfs_hash_bd new;
+	struct hlist_head *hhead;
+	struct hlist_node *hnode;
+	struct hlist_node *pos;
+	void *key;
+	int c = 0;
 
 	/* hold cfs_hash_lock(hs, 1), so don't need any bucket lock */
 	cfs_hash_bd_for_each_hlist(hs, old, hhead) {
@@ -1876,17 +1857,17 @@ cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old)
 static int
 cfs_hash_rehash_worker(cfs_workitem_t *wi)
 {
-	struct cfs_hash	 *hs = container_of(wi, struct cfs_hash, hs_rehash_wi);
+	struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_rehash_wi);
 	struct cfs_hash_bucket **bkts;
-	struct cfs_hash_bd       bd;
-	unsigned int	old_size;
-	unsigned int	new_size;
-	int		 bsize;
-	int		 count = 0;
-	int		 rc = 0;
-	int		 i;
+	struct cfs_hash_bd bd;
+	unsigned int old_size;
+	unsigned int new_size;
+	int bsize;
+	int count = 0;
+	int rc = 0;
+	int i;
 
-	LASSERT (hs != NULL && cfs_hash_with_rehash(hs));
+	LASSERT(hs != NULL && cfs_hash_with_rehash(hs));
 
 	cfs_hash_lock(hs, 0);
 	LASSERT(cfs_hash_is_rehashing(hs));
@@ -1958,7 +1939,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 	hs->hs_rehash_buckets = NULL;
 
 	hs->hs_cur_bits = hs->hs_rehash_bits;
- out:
+out:
 	hs->hs_rehash_bits = 0;
 	if (rc == -ESRCH) /* never be scheduled again */
 		cfs_wi_exit(cfs_sched_rehash, wi);
@@ -1986,9 +1967,9 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 			 void *new_key, struct hlist_node *hnode)
 {
-	struct cfs_hash_bd	bds[3];
-	struct cfs_hash_bd	old_bds[2];
-	struct cfs_hash_bd	new_bd;
+	struct cfs_hash_bd bds[3];
+	struct cfs_hash_bd old_bds[2];
+	struct cfs_hash_bd new_bd;
 
 	LASSERT(!hlist_unhashed(hnode));
 
@@ -2014,7 +1995,7 @@ void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 	}
 	/* overwrite key inside locks, otherwise may screw up with
 	 * other operations, i.e: rehash */
-	cfs_hash_keycpy(hs, new_key, hnode);
+	cfs_hash_keycpy(hs, hnode, new_key);
 
 	cfs_hash_multi_bd_unlock(hs, bds, 3, 1);
 	cfs_hash_unlock(hs, 0);
@@ -2054,12 +2035,12 @@ cfs_hash_full_nbkt(struct cfs_hash *hs)
 
 void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 {
-	int		    dist[8] = { 0, };
-	int		    maxdep  = -1;
-	int		    maxdepb = -1;
-	int		    total   = 0;
-	int		    theta;
-	int		    i;
+	int dist[8] = { 0, };
+	int maxdep = -1;
+	int maxdepb = -1;
+	int total = 0;
+	int theta;
+	int i;
 
 	cfs_hash_lock(hs, 0);
 	theta = __cfs_hash_theta(hs);
@@ -2085,11 +2066,11 @@ void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 	 * If you hash function results in a non-uniform hash the will
 	 * be observable by outlier bucks in the distribution histogram.
 	 *
-	 * Uniform hash distribution:      128/128/0/0/0/0/0/0
-	 * Non-Uniform hash distribution:  128/125/0/0/0/0/2/1
+	 * Uniform hash distribution:		128/128/0/0/0/0/0/0
+	 * Non-Uniform hash distribution:	128/125/0/0/0/0/2/1
 	 */
 	for (i = 0; i < cfs_hash_full_nbkt(hs); i++) {
-		struct cfs_hash_bd  bd;
+		struct cfs_hash_bd bd;
 
 		bd.bd_bucket = cfs_hash_full_bkts(hs)[i];
 		cfs_hash_bd_lock(hs, &bd, 0);
diff --git a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c b/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
index ad661a33a211..d8230aec9a2b 100644
--- a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
+++ b/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
@@ -110,7 +110,8 @@ static DECLARE_RWSEM(kg_sem);
  * @param uid identifier for this receiver
  * @param group group number
  */
-int libcfs_kkuc_group_add(struct file *filp, int uid, int group, __u32 data)
+int libcfs_kkuc_group_add(struct file *filp, int uid, unsigned int group,
+			  __u32 data)
 {
 	struct kkuc_reg *reg;
 
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c b/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
index 94bc00785000..15782d9e6aa9 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
@@ -21,7 +21,7 @@
  * GPL HEADER END
  */
 /* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c b/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
index f4e08daba4d9..27cf86106363 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
@@ -134,7 +134,6 @@ cfs_percpt_current(void *vars)
 
 	return arr->va_ptrs[cpt];
 }
-EXPORT_SYMBOL(cfs_percpt_current);
 
 void *
 cfs_percpt_index(void *vars, int idx)
@@ -146,7 +145,6 @@ cfs_percpt_index(void *vars, int idx)
 	LASSERT(idx >= 0 && idx < arr->va_count);
 	return arr->va_ptrs[idx];
 }
-EXPORT_SYMBOL(cfs_percpt_index);
 
 /*
  * free variable array, see more detail in cfs_array_alloc
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c b/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
index d40be5396769..205a3ed435a8 100644
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
+++ b/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
index 209736454d06..e52afe35e7ea 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
@@ -22,7 +22,8 @@
  */
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
+ *
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -78,23 +79,6 @@ struct cfs_cpt_data {
 
 static struct cfs_cpt_data	cpt_data;
 
-static void cfs_cpu_core_siblings(int cpu, cpumask_t *mask)
-{
-	/* return cpumask of cores in the same socket */
-	cpumask_copy(mask, topology_core_cpumask(cpu));
-}
-
-/* return cpumask of HTs in the same core */
-static void cfs_cpu_ht_siblings(int cpu, cpumask_t *mask)
-{
-	cpumask_copy(mask, topology_sibling_cpumask(cpu));
-}
-
-static void cfs_node_to_cpumask(int node, cpumask_t *mask)
-{
-	cpumask_copy(mask, cpumask_of_node(node));
-}
-
 void
 cfs_cpt_table_free(struct cfs_cpt_table *cptab)
 {
@@ -426,7 +410,7 @@ cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node)
 	mutex_lock(&cpt_data.cpt_mutex);
 
 	mask = cpt_data.cpt_cpumask;
-	cfs_node_to_cpumask(node, mask);
+	cpumask_copy(mask, cpumask_of_node(node));
 
 	rc = cfs_cpt_set_cpumask(cptab, cpt, mask);
 
@@ -450,7 +434,7 @@ cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node)
 	mutex_lock(&cpt_data.cpt_mutex);
 
 	mask = cpt_data.cpt_cpumask;
-	cfs_node_to_cpumask(node, mask);
+	cpumask_copy(mask, cpumask_of_node(node));
 
 	cfs_cpt_unset_cpumask(cptab, cpt, mask);
 
@@ -643,7 +627,7 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 		cpu = cpumask_first(node);
 
 		/* get cpumask for cores in the same socket */
-		cfs_cpu_core_siblings(cpu, socket);
+		cpumask_copy(socket, topology_core_cpumask(cpu));
 		cpumask_and(socket, socket, node);
 
 		LASSERT(!cpumask_empty(socket));
@@ -652,7 +636,7 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
 			int     i;
 
 			/* get cpumask for hts in the same core */
-			cfs_cpu_ht_siblings(cpu, core);
+			cpumask_copy(core, topology_sibling_cpumask(cpu));
 			cpumask_and(core, core, node);
 
 			LASSERT(!cpumask_empty(core));
@@ -769,7 +753,7 @@ cfs_cpt_table_create(int ncpt)
 	}
 
 	for_each_online_node(i) {
-		cfs_node_to_cpumask(i, mask);
+		cpumask_copy(mask, cpumask_of_node(i));
 
 		while (!cpumask_empty(mask)) {
 			struct cfs_cpu_partition *part;
@@ -968,7 +952,8 @@ cfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
 
 		mutex_lock(&cpt_data.cpt_mutex);
 		/* if all HTs in a core are offline, it may break affinity */
-		cfs_cpu_ht_siblings(cpu, cpt_data.cpt_cpumask);
+		cpumask_copy(cpt_data.cpt_cpumask,
+			     topology_sibling_cpumask(cpu));
 		warn = cpumask_any_and(cpt_data.cpt_cpumask,
 				       cpu_online_mask) >= nr_cpu_ids;
 		mutex_unlock(&cpt_data.cpt_mutex);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c
index 5d8d8b79fa1f..db0572733712 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c
@@ -37,11 +37,6 @@
 #define CHKSUM_BLOCK_SIZE	1
 #define CHKSUM_DIGEST_SIZE	4
 
-static u32 __adler32(u32 cksum, unsigned char const *p, size_t len)
-{
-	return zlib_adler32(cksum, p, len);
-}
-
 static int adler32_cra_init(struct crypto_tfm *tfm)
 {
 	u32 *key = crypto_tfm_ctx(tfm);
@@ -79,14 +74,14 @@ static int adler32_update(struct shash_desc *desc, const u8 *data,
 {
 	u32 *cksump = shash_desc_ctx(desc);
 
-	*cksump = __adler32(*cksump, data, len);
+	*cksump = zlib_adler32(*cksump, data, len);
 	return 0;
 }
 
 static int __adler32_finup(u32 *cksump, const u8 *data, unsigned int len,
 			   u8 *out)
 {
-	*(u32 *)out = __adler32(*cksump, data, len);
+	*(u32 *)out = zlib_adler32(*cksump, data, len);
 	return 0;
 }
 
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
index c74c80915dca..68515d9130c1 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
index 8689ea757c99..59c7bf3cbc1f 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
@@ -195,6 +195,5 @@ void libcfs_unregister_panic_notifier(void)
 	atomic_notifier_chain_unregister(&panic_notifier_list, &libcfs_panic_notifier);
 }
 
-EXPORT_SYMBOL(libcfs_run_upcall);
 EXPORT_SYMBOL(libcfs_run_lbug_upcall);
 EXPORT_SYMBOL(lbug_with_loc);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h
deleted file mode 100644
index ba84e4ffddd1..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LIBCFS_LINUX_TRACEFILE_H__
-#define __LIBCFS_LINUX_TRACEFILE_H__
-
-/**
- * three types of trace_data in linux
- */
-typedef enum {
-	CFS_TCD_TYPE_PROC = 0,
-	CFS_TCD_TYPE_SOFTIRQ,
-	CFS_TCD_TYPE_IRQ,
-	CFS_TCD_TYPE_MAX
-} cfs_trace_buf_type_t;
-
-#endif
diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
index e7c2b26156b9..329d78ce272d 100644
--- a/drivers/staging/lustre/lustre/libcfs/module.c
+++ b/drivers/staging/lustre/lustre/libcfs/module.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -62,7 +62,7 @@
 #include "../../include/linux/lnet/lnet.h"
 #include "tracefile.h"
 
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Portals v3.1");
 MODULE_LICENSE("GPL");
 
@@ -375,7 +375,7 @@ static int __proc_dobitmasks(void *data, int write,
 	} else {
 		rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
 		if (rc < 0) {
-			cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
+			kfree(tmpstr);
 			return rc;
 		}
 
@@ -385,7 +385,7 @@ static int __proc_dobitmasks(void *data, int write,
 			*mask |= D_EMERG;
 	}
 
-	cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
+	kfree(tmpstr);
 	return rc;
 }
 
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c
index f2d018d7823c..65c4f1ab0de8 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.c
@@ -199,7 +199,6 @@ static void cfs_tcd_shrink(struct cfs_trace_cpu_data *tcd)
 		       pgcount + 1, tcd->tcd_cur_pages);
 
 	INIT_LIST_HEAD(&pc.pc_pages);
-	spin_lock_init(&pc.pc_lock);
 
 	list_for_each_entry_safe(tage, tmp, &tcd->tcd_pages, linkage) {
 		if (pgcount-- == 0)
@@ -451,7 +450,7 @@ console:
 		cfs_print_to_console(&header, mask,
 				     string_buf, needed, file, msgdata->msg_fn);
 
-		cfs_trace_put_console_buffer(string_buf);
+		put_cpu();
 	}
 
 	if (cdls != NULL && cdls->cdls_count != 0) {
@@ -465,7 +464,7 @@ console:
 		cfs_print_to_console(&header, mask,
 				     string_buf, needed, file, msgdata->msg_fn);
 
-		cfs_trace_put_console_buffer(string_buf);
+		put_cpu();
 		cdls->cdls_count = 0;
 	}
 
@@ -522,7 +521,6 @@ static void collect_pages_on_all_cpus(struct page_collection *pc)
 	struct cfs_trace_cpu_data *tcd;
 	int i, cpu;
 
-	spin_lock(&pc->pc_lock);
 	for_each_possible_cpu(cpu) {
 		cfs_tcd_for_each_type_lock(tcd, i, cpu) {
 			list_splice_init(&tcd->tcd_pages, &pc->pc_pages);
@@ -534,7 +532,6 @@ static void collect_pages_on_all_cpus(struct page_collection *pc)
 			}
 		}
 	}
-	spin_unlock(&pc->pc_lock);
 }
 
 static void collect_pages(struct page_collection *pc)
@@ -555,7 +552,6 @@ static void put_pages_back_on_all_cpus(struct page_collection *pc)
 	struct cfs_trace_page *tmp;
 	int i, cpu;
 
-	spin_lock(&pc->pc_lock);
 	for_each_possible_cpu(cpu) {
 		cfs_tcd_for_each_type_lock(tcd, i, cpu) {
 			cur_head = tcd->tcd_pages.next;
@@ -573,7 +569,6 @@ static void put_pages_back_on_all_cpus(struct page_collection *pc)
 			}
 		}
 	}
-	spin_unlock(&pc->pc_lock);
 }
 
 static void put_pages_back(struct page_collection *pc)
@@ -592,7 +587,6 @@ static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
 	struct cfs_trace_page *tage;
 	struct cfs_trace_page *tmp;
 
-	spin_lock(&pc->pc_lock);
 	list_for_each_entry_safe(tage, tmp, &pc->pc_pages, linkage) {
 
 		__LASSERT_TAGE_INVARIANT(tage);
@@ -616,7 +610,6 @@ static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
 			tcd->tcd_cur_daemon_pages--;
 		}
 	}
-	spin_unlock(&pc->pc_lock);
 }
 
 static void put_pages_on_daemon_list(struct page_collection *pc)
@@ -636,8 +629,6 @@ void cfs_trace_debug_print(void)
 	struct cfs_trace_page *tage;
 	struct cfs_trace_page *tmp;
 
-	spin_lock_init(&pc.pc_lock);
-
 	pc.pc_want_daemon_pages = 1;
 	collect_pages(&pc);
 	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
@@ -692,7 +683,6 @@ int cfs_tracefile_dump_all_pages(char *filename)
 		goto out;
 	}
 
-	spin_lock_init(&pc.pc_lock);
 	pc.pc_want_daemon_pages = 1;
 	collect_pages(&pc);
 	if (list_empty(&pc.pc_pages)) {
@@ -739,8 +729,6 @@ void cfs_trace_flush_pages(void)
 	struct cfs_trace_page *tage;
 	struct cfs_trace_page *tmp;
 
-	spin_lock_init(&pc.pc_lock);
-
 	pc.pc_want_daemon_pages = 1;
 	collect_pages(&pc);
 	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
@@ -817,11 +805,6 @@ int cfs_trace_allocate_string_buffer(char **str, int nob)
 	return 0;
 }
 
-void cfs_trace_free_string_buffer(char *str, int nob)
-{
-	kfree(str);
-}
-
 int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob)
 {
 	char	 *str;
@@ -842,7 +825,7 @@ int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob)
 	}
 	rc = cfs_tracefile_dump_all_pages(str);
 out:
-	cfs_trace_free_string_buffer(str, usr_str_nob + 1);
+	kfree(str);
 	return rc;
 }
 
@@ -898,7 +881,7 @@ int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob)
 	if (rc == 0)
 		rc = cfs_trace_daemon_command(str);
 
-	cfs_trace_free_string_buffer(str, usr_str_nob + 1);
+	kfree(str);
 	return rc;
 }
 
@@ -970,7 +953,6 @@ static int tracefiled(void *arg)
 	/* we're started late enough that we pick up init's fs context */
 	/* this is so broken in uml?  what on earth is going on? */
 
-	spin_lock_init(&pc.pc_lock);
 	complete(&tctl->tctl_start);
 
 	while (1) {
@@ -1170,7 +1152,6 @@ static void cfs_trace_cleanup(void)
 	struct page_collection pc;
 
 	INIT_LIST_HEAD(&pc.pc_pages);
-	spin_lock_init(&pc.pc_lock);
 
 	trace_cleanup_on_all_cpus();
 
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.h b/drivers/staging/lustre/lustre/libcfs/tracefile.h
index cb7a3963589f..7bf1471a54fb 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.h
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.h
@@ -39,7 +39,12 @@
 
 #include "../../include/linux/libcfs/libcfs.h"
 
-#include "linux/linux-tracefile.h"
+typedef enum {
+	CFS_TCD_TYPE_PROC = 0,
+	CFS_TCD_TYPE_SOFTIRQ,
+	CFS_TCD_TYPE_IRQ,
+	CFS_TCD_TYPE_MAX
+} cfs_trace_buf_type_t;
 
 /* trace file lock routines */
 
@@ -70,7 +75,6 @@ int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
 int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
 			     const char *knl_str, char *append);
 int cfs_trace_allocate_string_buffer(char **str, int nob);
-void cfs_trace_free_string_buffer(char *str, int nob);
 int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob);
 int cfs_trace_daemon_command(char *str);
 int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob);
@@ -196,14 +200,6 @@ extern union cfs_trace_data_union (*cfs_trace_data[TCD_MAX_TYPES])[NR_CPUS];
 struct page_collection {
 	struct list_head	pc_pages;
 	/*
-	 * spin-lock protecting ->pc_pages. It is taken by smp_call_function()
-	 * call-back functions. XXX nikita: Which is horrible: all processors
-	 * receive NMI at the same time only to be serialized by this
-	 * lock. Probably ->pc_pages should be replaced with an array of
-	 * NR_CPUS elements accessed locklessly.
-	 */
-	spinlock_t	pc_lock;
-	/*
 	 * if this flag is set, collect_pages() will spill both
 	 * ->tcd_daemon_pages and ->tcd_pages to the ->pc_pages. Otherwise,
 	 * only ->tcd_pages are spilled.
@@ -260,13 +256,6 @@ void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
 int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
 void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
 
-/**
- * trace_buf_type_t, trace_buf_idx_get() and trace_console_buffers[][]
- * are not public libcfs API; they should be defined in
- * platform-specific tracefile include files
- * (see, for example, linux-tracefile.h).
- */
-
 extern char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
 cfs_trace_buf_type_t cfs_trace_buf_idx_get(void);
 
@@ -279,12 +268,6 @@ cfs_trace_get_console_buffer(void)
 	return cfs_trace_console_buffers[i][j];
 }
 
-static inline void
-cfs_trace_put_console_buffer(char *buffer)
-{
-	put_cpu();
-}
-
 static inline struct cfs_trace_cpu_data *
 cfs_trace_get_tcd(void)
 {
diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c
index e1143a566ac4..60bb88a00b41 100644
--- a/drivers/staging/lustre/lustre/libcfs/workitem.c
+++ b/drivers/staging/lustre/lustre/libcfs/workitem.c
@@ -86,32 +86,20 @@ static struct cfs_workitem_data {
 	int			wi_stopping;
 } cfs_wi_data;
 
-static inline void
-cfs_wi_sched_lock(struct cfs_wi_sched *sched)
-{
-	spin_lock(&sched->ws_lock);
-}
-
-static inline void
-cfs_wi_sched_unlock(struct cfs_wi_sched *sched)
-{
-	spin_unlock(&sched->ws_lock);
-}
-
 static inline int
 cfs_wi_sched_cansleep(struct cfs_wi_sched *sched)
 {
-	cfs_wi_sched_lock(sched);
+	spin_lock(&sched->ws_lock);
 	if (sched->ws_stopping) {
-		cfs_wi_sched_unlock(sched);
+		spin_unlock(&sched->ws_lock);
 		return 0;
 	}
 
 	if (!list_empty(&sched->ws_runq)) {
-		cfs_wi_sched_unlock(sched);
+		spin_unlock(&sched->ws_lock);
 		return 0;
 	}
-	cfs_wi_sched_unlock(sched);
+	spin_unlock(&sched->ws_lock);
 	return 1;
 }
 
@@ -125,7 +113,7 @@ cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	LASSERT(!in_interrupt()); /* because we use plain spinlock */
 	LASSERT(!sched->ws_stopping);
 
-	cfs_wi_sched_lock(sched);
+	spin_lock(&sched->ws_lock);
 
 	LASSERT(wi->wi_running);
 	if (wi->wi_scheduled) { /* cancel pending schedules */
@@ -139,7 +127,7 @@ cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	LASSERT(list_empty(&wi->wi_list));
 
 	wi->wi_scheduled = 1; /* LBUG future schedule attempts */
-	cfs_wi_sched_unlock(sched);
+	spin_unlock(&sched->ws_lock);
 
 	return;
 }
@@ -161,7 +149,7 @@ cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	 * means the workitem will not be scheduled and will not have
 	 * any race with wi_action.
 	 */
-	cfs_wi_sched_lock(sched);
+	spin_lock(&sched->ws_lock);
 
 	rc = !(wi->wi_running);
 
@@ -177,7 +165,7 @@ cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 
 	LASSERT (list_empty(&wi->wi_list));
 
-	cfs_wi_sched_unlock(sched);
+	spin_unlock(&sched->ws_lock);
 	return rc;
 }
 EXPORT_SYMBOL(cfs_wi_deschedule);
@@ -195,7 +183,7 @@ cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	LASSERT(!in_interrupt()); /* because we use plain spinlock */
 	LASSERT(!sched->ws_stopping);
 
-	cfs_wi_sched_lock(sched);
+	spin_lock(&sched->ws_lock);
 
 	if (!wi->wi_scheduled) {
 		LASSERT (list_empty(&wi->wi_list));
@@ -211,7 +199,7 @@ cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 	}
 
 	LASSERT (!list_empty(&wi->wi_list));
-	cfs_wi_sched_unlock(sched);
+	spin_unlock(&sched->ws_lock);
 	return;
 }
 EXPORT_SYMBOL(cfs_wi_schedule);
@@ -225,7 +213,9 @@ cfs_wi_scheduler (void *arg)
 
 	/* CPT affinity scheduler? */
 	if (sched->ws_cptab != NULL)
-		cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt);
+		if (cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt) != 0)
+			CWARN("Failed to bind %s on CPT %d\n",
+			      sched->ws_name, sched->ws_cpt);
 
 	spin_lock(&cfs_wi_data.wi_glock);
 
@@ -235,7 +225,7 @@ cfs_wi_scheduler (void *arg)
 
 	spin_unlock(&cfs_wi_data.wi_glock);
 
-	cfs_wi_sched_lock(sched);
+	spin_lock(&sched->ws_lock);
 
 	while (!sched->ws_stopping) {
 		int	     nloops = 0;
@@ -256,12 +246,12 @@ cfs_wi_scheduler (void *arg)
 			wi->wi_running   = 1;
 			wi->wi_scheduled = 0;
 
-			cfs_wi_sched_unlock(sched);
+			spin_unlock(&sched->ws_lock);
 			nloops++;
 
 			rc = (*wi->wi_action) (wi);
 
-			cfs_wi_sched_lock(sched);
+			spin_lock(&sched->ws_lock);
 			if (rc != 0) /* WI should be dead, even be freed! */
 				continue;
 
@@ -276,21 +266,21 @@ cfs_wi_scheduler (void *arg)
 		}
 
 		if (!list_empty(&sched->ws_runq)) {
-			cfs_wi_sched_unlock(sched);
+			spin_unlock(&sched->ws_lock);
 			/* don't sleep because some workitems still
 			 * expect me to come back soon */
 			cond_resched();
-			cfs_wi_sched_lock(sched);
+			spin_lock(&sched->ws_lock);
 			continue;
 		}
 
-		cfs_wi_sched_unlock(sched);
+		spin_unlock(&sched->ws_lock);
 		rc = wait_event_interruptible_exclusive(sched->ws_waitq,
 						!cfs_wi_sched_cansleep(sched));
-		cfs_wi_sched_lock(sched);
+		spin_lock(&sched->ws_lock);
 	}
 
-	cfs_wi_sched_unlock(sched);
+	spin_unlock(&sched->ws_lock);
 
 	spin_lock(&cfs_wi_data.wi_glock);
 	sched->ws_nthreads--;
@@ -325,7 +315,7 @@ cfs_wi_sched_destroy(struct cfs_wi_sched *sched)
 
 	spin_lock(&cfs_wi_data.wi_glock);
 	while (sched->ws_nthreads > 0) {
-		CDEBUG(IS_PO2(++i) ? D_WARNING : D_NET,
+		CDEBUG(is_power_of_2(++i) ? D_WARNING : D_NET,
 		       "waiting for %d threads of WI sched[%s] to terminate\n",
 		       sched->ws_nthreads, sched->ws_name);
 
@@ -360,8 +350,8 @@ cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab,
 	if (sched == NULL)
 		return -ENOMEM;
 
-	strncpy(sched->ws_name, name, CFS_WS_NAME_LEN);
-	sched->ws_name[CFS_WS_NAME_LEN - 1] = '\0';
+	strlcpy(sched->ws_name, name, CFS_WS_NAME_LEN);
+
 	sched->ws_cptab = cptab;
 	sched->ws_cpt = cpt;
 
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index 80cba0448499..3d6745e63fe3 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 5c9502b5b358..7b355319079c 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -239,12 +239,6 @@ static int ll_dir_filler(void *_hash, struct page *page0)
 	return rc;
 }
 
-static void ll_check_page(struct inode *dir, struct page *page)
-{
-	/* XXX: check page format later */
-	SetPageChecked(page);
-}
-
 void ll_release_page(struct page *page, int remove)
 {
 	kunmap(page);
@@ -432,7 +426,8 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
 		goto fail;
 	}
 	if (!PageChecked(page))
-		ll_check_page(dir, page);
+		/* XXX: check page format later */
+		SetPageChecked(page);
 	if (PageError(page)) {
 		CERROR("page error: "DFID" at %llu: rc %d\n",
 		       PFID(ll_inode2fid(dir)), hash, -5);
@@ -641,7 +636,7 @@ static int ll_send_mgc_param(struct obd_export *mgc, char *string)
 	if (!msp)
 		return -ENOMEM;
 
-	strncpy(msp->mgs_param, string, MGS_PARAM_MAXLEN);
+	strlcpy(msp->mgs_param, string, sizeof(msp->mgs_param));
 	rc = obd_set_info_async(NULL, mgc, sizeof(KEY_SET_INFO), KEY_SET_INFO,
 				sizeof(struct mgs_send_param), msp, NULL);
 	if (rc)
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 31cd6b323a39..c92d58b770ec 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 6102b29dbf30..ee8a1d67d191 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1285,16 +1285,6 @@ static inline struct ll_file_data *cl_iattr2fd(struct inode *inode,
 	return LUSTRE_FPRIVATE(attr->ia_file);
 }
 
-static inline void cl_isize_lock(struct inode *inode)
-{
-	ll_inode_size_lock(inode);
-}
-
-static inline void cl_isize_unlock(struct inode *inode)
-{
-	ll_inode_size_unlock(inode);
-}
-
 static inline void cl_isize_write_nolock(struct inode *inode, loff_t kms)
 {
 	LASSERT(mutex_is_locked(&ll_i2info(inode)->lli_size_mutex));
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index 4a8c759fef42..1db93af62bad 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
index 7df978371c9a..bbae95c9feed 100644
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index fed50d538a41..420d39123877 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -877,6 +877,6 @@ module_exit(lloop_exit);
 
 module_param(max_loop, int, 0444);
 MODULE_PARM_DESC(max_loop, "maximum of lloop_device");
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre virtual block device");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index 190fc44114e1..f134ad9d23f0 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 64db5e86672f..da5f443a0768 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -554,7 +554,6 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 		retval = NULL;
 	else
 		retval = dentry;
-	goto out;
  out:
 	if (req)
 		ptlrpc_req_finished(req);
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index f79193fa2fb7..95cdb0c58b04 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -880,14 +880,6 @@ static void ras_update_stride_detector(struct ll_readahead_state *ras,
 	return;
 }
 
-static unsigned long
-stride_page_count(struct ll_readahead_state *ras, unsigned long len)
-{
-	return stride_pg_count(ras->ras_stride_offset, ras->ras_stride_length,
-			       ras->ras_stride_pages, ras->ras_stride_offset,
-			       len);
-}
-
 /* Stride Read-ahead window will be increased inc_len according to
  * stride I/O pattern */
 static void ras_stride_increase_window(struct ll_readahead_state *ras,
@@ -921,7 +913,9 @@ static void ras_stride_increase_window(struct ll_readahead_state *ras,
 
 	window_len += step * ras->ras_stride_length + left;
 
-	if (stride_page_count(ras, window_len) <= ra->ra_max_pages_per_file)
+	if (stride_pg_count(ras->ras_stride_offset, ras->ras_stride_length,
+			    ras->ras_stride_pages, ras->ras_stride_offset,
+			    window_len) <= ra->ra_max_pages_per_file)
 		ras->ras_window_len = window_len;
 
 	RAS_CDEBUG(ras);
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 3da4c01e2159..39fa13b74cbd 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -298,7 +298,10 @@ ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
 		}
 
 		if (likely(do_io)) {
-			cl_2queue_add(queue, clp);
+			/*
+			 * Add a page to the incoming page list of 2-queue.
+			 */
+			cl_page_list_add(&queue->c2_qin, clp);
 
 			/*
 			 * Set page clip to tell transfer formation engine
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index 18f5f2b7e902..88ffd8e3abdb 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -87,11 +87,6 @@ struct ll_sa_entry {
 static unsigned int sai_generation;
 static DEFINE_SPINLOCK(sai_generation_lock);
 
-static inline int ll_sa_entry_unhashed(struct ll_sa_entry *entry)
-{
-	return list_empty(&entry->se_hash);
-}
-
 /*
  * The entry only can be released by the caller, it is necessary to hold lock.
  */
@@ -138,20 +133,6 @@ static inline int agl_should_run(struct ll_statahead_info *sai,
 	return (inode != NULL && S_ISREG(inode->i_mode) && sai->sai_agl_valid);
 }
 
-static inline struct ll_sa_entry *
-sa_first_received_entry(struct ll_statahead_info *sai)
-{
-	return list_entry(sai->sai_entries_received.next,
-			      struct ll_sa_entry, se_list);
-}
-
-static inline struct ll_inode_info *
-agl_first_entry(struct ll_statahead_info *sai)
-{
-	return list_entry(sai->sai_entries_agl.next,
-			      struct ll_inode_info, lli_agl_list);
-}
-
 static inline int sa_sent_full(struct ll_statahead_info *sai)
 {
 	return atomic_read(&sai->sai_cache_count) >= sai->sai_max;
@@ -331,7 +312,7 @@ static void ll_sa_entry_put(struct ll_statahead_info *sai,
 
 		LASSERT(list_empty(&entry->se_link));
 		LASSERT(list_empty(&entry->se_list));
-		LASSERT(ll_sa_entry_unhashed(entry));
+		LASSERT(list_empty(&entry->se_hash));
 
 		ll_sa_entry_cleanup(sai, entry);
 		iput(entry->se_inode);
@@ -346,7 +327,7 @@ do_sa_entry_fini(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
 {
 	struct ll_inode_info *lli = ll_i2info(sai->sai_inode);
 
-	LASSERT(!ll_sa_entry_unhashed(entry));
+	LASSERT(!list_empty(&entry->se_hash));
 	LASSERT(!list_empty(&entry->se_link));
 
 	ll_sa_entry_unhash(sai, entry);
@@ -447,7 +428,7 @@ static void ll_agl_add(struct ll_statahead_info *sai,
 
 		igrab(inode);
 		spin_lock(&parent->lli_agl_lock);
-		if (agl_list_empty(sai))
+		if (list_empty(&sai->sai_entries_agl))
 			added = 1;
 		list_add_tail(&child->lli_agl_list, &sai->sai_entries_agl);
 		spin_unlock(&parent->lli_agl_lock);
@@ -537,11 +518,11 @@ static void ll_sai_put(struct ll_statahead_info *sai)
 			do_sa_entry_fini(sai, entry);
 
 		LASSERT(list_empty(&sai->sai_entries));
-		LASSERT(sa_received_empty(sai));
+		LASSERT(list_empty(&sai->sai_entries_received));
 		LASSERT(list_empty(&sai->sai_entries_stated));
 
 		LASSERT(atomic_read(&sai->sai_cache_count) == 0);
-		LASSERT(agl_list_empty(sai));
+		LASSERT(list_empty(&sai->sai_entries_agl));
 
 		iput(inode);
 		kfree(sai);
@@ -621,11 +602,12 @@ static void ll_post_statahead(struct ll_statahead_info *sai)
 	int		     rc    = 0;
 
 	spin_lock(&lli->lli_sa_lock);
-	if (unlikely(sa_received_empty(sai))) {
+	if (unlikely(list_empty(&sai->sai_entries_received))) {
 		spin_unlock(&lli->lli_sa_lock);
 		return;
 	}
-	entry = sa_first_received_entry(sai);
+	entry = list_entry(sai->sai_entries_received.next,
+			   struct ll_sa_entry, se_list);
 	atomic_inc(&entry->se_refcount);
 	list_del_init(&entry->se_list);
 	spin_unlock(&lli->lli_sa_lock);
@@ -756,7 +738,7 @@ static int ll_statahead_interpret(struct ptlrpc_request *req,
 			 * for readpage and other tries to enqueue lock on child
 			 * with parent's lock held, for example: unlink. */
 			entry->se_handle = handle;
-			wakeup = sa_received_empty(sai);
+			wakeup = list_empty(&sai->sai_entries_received);
 			list_add_tail(&entry->se_list,
 					  &sai->sai_entries_received);
 		}
@@ -973,7 +955,7 @@ static int ll_agl_thread(void *arg)
 
 	while (1) {
 		l_wait_event(thread->t_ctl_waitq,
-			     !agl_list_empty(sai) ||
+			     !list_empty(&sai->sai_entries_agl) ||
 			     !thread_is_running(thread),
 			     &lwi);
 
@@ -983,8 +965,9 @@ static int ll_agl_thread(void *arg)
 		spin_lock(&plli->lli_agl_lock);
 		/* The statahead thread maybe help to process AGL entries,
 		 * so check whether list empty again. */
-		if (!agl_list_empty(sai)) {
-			clli = agl_first_entry(sai);
+		if (!list_empty(&sai->sai_entries_agl)) {
+			clli = list_entry(sai->sai_entries_agl.next,
+					  struct ll_inode_info, lli_agl_list);
 			list_del_init(&clli->lli_agl_list);
 			spin_unlock(&plli->lli_agl_lock);
 			ll_agl_trigger(&clli->lli_vfs_inode, sai);
@@ -995,8 +978,9 @@ static int ll_agl_thread(void *arg)
 
 	spin_lock(&plli->lli_agl_lock);
 	sai->sai_agl_valid = 0;
-	while (!agl_list_empty(sai)) {
-		clli = agl_first_entry(sai);
+	while (!list_empty(&sai->sai_entries_agl)) {
+		clli = list_entry(sai->sai_entries_agl.next,
+				  struct ll_inode_info, lli_agl_list);
 		list_del_init(&clli->lli_agl_list);
 		spin_unlock(&plli->lli_agl_lock);
 		clli->lli_agl_index = 0;
@@ -1136,13 +1120,13 @@ static int ll_statahead_thread(void *arg)
 keep_it:
 			l_wait_event(thread->t_ctl_waitq,
 				     !sa_sent_full(sai) ||
-				     !sa_received_empty(sai) ||
-				     !agl_list_empty(sai) ||
+				     !list_empty(&sai->sai_entries_received) ||
+				     !list_empty(&sai->sai_entries_agl) ||
 				     !thread_is_running(thread),
 				     &lwi);
 
 interpret_it:
-			while (!sa_received_empty(sai))
+			while (!list_empty(&sai->sai_entries_received))
 				ll_post_statahead(sai);
 
 			if (unlikely(!thread_is_running(thread))) {
@@ -1156,14 +1140,15 @@ interpret_it:
 			 * to process the AGL entries. */
 			if (sa_sent_full(sai)) {
 				spin_lock(&plli->lli_agl_lock);
-				while (!agl_list_empty(sai)) {
-					clli = agl_first_entry(sai);
+				while (!list_empty(&sai->sai_entries_agl)) {
+					clli = list_entry(sai->sai_entries_agl.next,
+							  struct ll_inode_info, lli_agl_list);
 					list_del_init(&clli->lli_agl_list);
 					spin_unlock(&plli->lli_agl_lock);
 					ll_agl_trigger(&clli->lli_vfs_inode,
 						       sai);
 
-					if (!sa_received_empty(sai))
+					if (!list_empty(&sai->sai_entries_received))
 						goto interpret_it;
 
 					if (unlikely(
@@ -1194,12 +1179,12 @@ do_it:
 			ll_release_page(page, 0);
 			while (1) {
 				l_wait_event(thread->t_ctl_waitq,
-					     !sa_received_empty(sai) ||
+					     !list_empty(&sai->sai_entries_received) ||
 					     sai->sai_sent == sai->sai_replied ||
 					     !thread_is_running(thread),
 					     &lwi);
 
-				while (!sa_received_empty(sai))
+				while (!list_empty(&sai->sai_entries_received))
 					ll_post_statahead(sai);
 
 				if (unlikely(!thread_is_running(thread))) {
@@ -1208,14 +1193,15 @@ do_it:
 				}
 
 				if (sai->sai_sent == sai->sai_replied &&
-				    sa_received_empty(sai))
+				    list_empty(&sai->sai_entries_received))
 					break;
 			}
 
 			spin_lock(&plli->lli_agl_lock);
-			while (!agl_list_empty(sai) &&
+			while (!list_empty(&sai->sai_entries_agl) &&
 			       thread_is_running(thread)) {
-				clli = agl_first_entry(sai);
+				clli = list_entry(sai->sai_entries_agl.next,
+						  struct ll_inode_info, lli_agl_list);
 				list_del_init(&clli->lli_agl_list);
 				spin_unlock(&plli->lli_agl_lock);
 				ll_agl_trigger(&clli->lli_vfs_inode, sai);
@@ -1260,12 +1246,12 @@ out:
 	}
 	ll_dir_chain_fini(&chain);
 	spin_lock(&plli->lli_sa_lock);
-	if (!sa_received_empty(sai)) {
+	if (!list_empty(&sai->sai_entries_received)) {
 		thread_set_flags(thread, SVC_STOPPING);
 		spin_unlock(&plli->lli_sa_lock);
 
 		/* To release the resources held by received entries. */
-		while (!sa_received_empty(sai))
+		while (!list_empty(&sai->sai_entries_received))
 			ll_post_statahead(sai);
 
 		spin_lock(&plli->lli_sa_lock);
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
index 013136860664..86c371ef71ea 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -106,7 +106,8 @@ static int __init init_lustre_lite(void)
 	rc = -ENOMEM;
 	ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
 					    sizeof(struct ll_inode_info),
-					    0, SLAB_HWCACHE_ALIGN, NULL);
+					    0, SLAB_HWCACHE_ALIGN|SLAB_ACCOUNT,
+					    NULL);
 	if (ll_inode_cachep == NULL)
 		goto out_cache;
 
@@ -205,7 +206,7 @@ static void __exit exit_lustre_lite(void)
 	kmem_cache_destroy(ll_file_data_slab);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Lite Client File System");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index d16d6cfce81a..fdca4ec0555d 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h
index b5a6661d47d5..2e39533a45f8 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_internal.h
+++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2013, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index 37773c181729..f68e972886ca 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -849,7 +849,7 @@ static int vvp_io_read_page(const struct lu_env *env,
 	 * Add page into the queue even when it is marked uptodate above.
 	 * this will unlock it automatically as part of cl_page_list_disown().
 	 */
-	cl_2queue_add(queue, page);
+	cl_page_list_add(&queue->c2_qin, page);
 	if (sbi->ll_ra_info.ra_max_pages_per_file &&
 	    sbi->ll_ra_info.ra_max_pages)
 		ll_readahead(env, io, ras,
diff --git a/drivers/staging/lustre/lustre/llite/vvp_lock.c b/drivers/staging/lustre/lustre/llite/vvp_lock.c
index f7b1144aadee..ff0948043c7a 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_lock.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_lock.c
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2014, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c
index e13afb7e8dca..c82714ea898e 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_object.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c
index 92f60c350f35..99c0d7aee921 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_page.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_page.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
index 660b8ac37ae0..8eb43f192d1f 100644
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -193,7 +193,10 @@ int ll_setxattr_common(struct inode *inode, const char *name,
 			 ll_i2suppgid(inode), &req);
 #ifdef CONFIG_FS_POSIX_ACL
 	if (new_value != NULL)
-		lustre_posix_acl_xattr_free(new_value, size);
+		/*
+		 * Release the posix ACL space.
+		 */
+		kfree(new_value);
 	if (acl != NULL)
 		lustre_ext_acl_xattr_free(acl);
 #endif
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
index e1e599ceb173..d1402762a0b2 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c
@@ -1,6 +1,8 @@
 /*
  * Copyright 2012 Xyratex Technology Limited
  *
+ * Copyright (c) 2013, 2015, Intel Corporation.
+ *
  * Author: Andrew Perepechko <Andrew_Perepechko@xyratex.com>
  *
  */
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index eebe45bdceb6..66de27f1d289 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -156,11 +156,11 @@ out:
  * IT_OPEN is intended to open (and create, possible) an object. Parent (pid)
  * may be split dir.
  */
-int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags)
+static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
+			   void *lmm, int lmmsize, struct lookup_intent *it,
+			   int flags, struct ptlrpc_request **reqp,
+			   ldlm_blocking_callback cb_blocking,
+			   __u64 extra_lock_flags)
 {
 	struct obd_device	*obd = exp->exp_obd;
 	struct lmv_obd		*lmv = &obd->u.lmv;
@@ -239,11 +239,12 @@ int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
 /*
  * Handler for: getattr, lookup and revalidate cases.
  */
-int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
-		      void *lmm, int lmmsize, struct lookup_intent *it,
-		      int flags, struct ptlrpc_request **reqp,
-		      ldlm_blocking_callback cb_blocking,
-		      __u64 extra_lock_flags)
+static int lmv_intent_lookup(struct obd_export *exp,
+			     struct md_op_data *op_data,
+			     void *lmm, int lmmsize, struct lookup_intent *it,
+			     int flags, struct ptlrpc_request **reqp,
+			     ldlm_blocking_callback cb_blocking,
+			     __u64 extra_lock_flags)
 {
 	struct obd_device      *obd = exp->exp_obd;
 	struct lmv_obd	 *lmv = &obd->u.lmv;
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
index b808728daee7..eb8e673cbc3f 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -56,20 +56,6 @@ int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
 		    ldlm_blocking_callback cb_blocking,
 		    __u64 extra_lock_flags);
 
-int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
-		      void *lmm, int lmmsize, struct lookup_intent *it,
-		      int flags, struct ptlrpc_request **reqp,
-		      ldlm_blocking_callback cb_blocking,
-		      __u64 extra_lock_flags);
-
-int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags);
-
-int lmv_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
-		     void *, int);
 int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds);
 int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds);
 int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 635a93cc94de..bbafe0a710d8 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -2744,55 +2744,55 @@ static int lmv_quotacheck(struct obd_device *unused, struct obd_export *exp,
 }
 
 static struct obd_ops lmv_obd_ops = {
-	.o_owner		= THIS_MODULE,
-	.o_setup		= lmv_setup,
-	.o_cleanup	      = lmv_cleanup,
-	.o_precleanup	   = lmv_precleanup,
-	.o_process_config       = lmv_process_config,
-	.o_connect	      = lmv_connect,
-	.o_disconnect	   = lmv_disconnect,
-	.o_statfs	       = lmv_statfs,
-	.o_get_info	     = lmv_get_info,
-	.o_set_info_async       = lmv_set_info_async,
-	.o_packmd	       = lmv_packmd,
-	.o_unpackmd	     = lmv_unpackmd,
-	.o_notify	       = lmv_notify,
-	.o_get_uuid	     = lmv_get_uuid,
-	.o_iocontrol	    = lmv_iocontrol,
-	.o_quotacheck	   = lmv_quotacheck,
-	.o_quotactl	     = lmv_quotactl
+	.owner		= THIS_MODULE,
+	.setup		= lmv_setup,
+	.cleanup	= lmv_cleanup,
+	.precleanup	= lmv_precleanup,
+	.process_config	= lmv_process_config,
+	.connect	= lmv_connect,
+	.disconnect	= lmv_disconnect,
+	.statfs		= lmv_statfs,
+	.get_info	= lmv_get_info,
+	.set_info_async	= lmv_set_info_async,
+	.packmd		= lmv_packmd,
+	.unpackmd	= lmv_unpackmd,
+	.notify		= lmv_notify,
+	.get_uuid	= lmv_get_uuid,
+	.iocontrol	= lmv_iocontrol,
+	.quotacheck	= lmv_quotacheck,
+	.quotactl	= lmv_quotactl
 };
 
 static struct md_ops lmv_md_ops = {
-	.m_getstatus	    = lmv_getstatus,
-	.m_null_inode		= lmv_null_inode,
-	.m_find_cbdata	  = lmv_find_cbdata,
-	.m_close		= lmv_close,
-	.m_create	       = lmv_create,
-	.m_done_writing	 = lmv_done_writing,
-	.m_enqueue	      = lmv_enqueue,
-	.m_getattr	      = lmv_getattr,
-	.m_getxattr	     = lmv_getxattr,
-	.m_getattr_name	 = lmv_getattr_name,
-	.m_intent_lock	  = lmv_intent_lock,
-	.m_link		 = lmv_link,
-	.m_rename	       = lmv_rename,
-	.m_setattr	      = lmv_setattr,
-	.m_setxattr	     = lmv_setxattr,
-	.m_sync		 = lmv_sync,
-	.m_readpage	     = lmv_readpage,
-	.m_unlink	       = lmv_unlink,
-	.m_init_ea_size	 = lmv_init_ea_size,
-	.m_cancel_unused	= lmv_cancel_unused,
-	.m_set_lock_data	= lmv_set_lock_data,
-	.m_lock_match	   = lmv_lock_match,
-	.m_get_lustre_md	= lmv_get_lustre_md,
-	.m_free_lustre_md       = lmv_free_lustre_md,
-	.m_set_open_replay_data = lmv_set_open_replay_data,
-	.m_clear_open_replay_data = lmv_clear_open_replay_data,
-	.m_get_remote_perm      = lmv_get_remote_perm,
-	.m_intent_getattr_async = lmv_intent_getattr_async,
-	.m_revalidate_lock      = lmv_revalidate_lock
+	.getstatus		= lmv_getstatus,
+	.null_inode		= lmv_null_inode,
+	.find_cbdata		= lmv_find_cbdata,
+	.close			= lmv_close,
+	.create			= lmv_create,
+	.done_writing		= lmv_done_writing,
+	.enqueue		= lmv_enqueue,
+	.getattr		= lmv_getattr,
+	.getxattr		= lmv_getxattr,
+	.getattr_name		= lmv_getattr_name,
+	.intent_lock		= lmv_intent_lock,
+	.link			= lmv_link,
+	.rename			= lmv_rename,
+	.setattr		= lmv_setattr,
+	.setxattr		= lmv_setxattr,
+	.sync			= lmv_sync,
+	.readpage		= lmv_readpage,
+	.unlink			= lmv_unlink,
+	.init_ea_size		= lmv_init_ea_size,
+	.cancel_unused		= lmv_cancel_unused,
+	.set_lock_data		= lmv_set_lock_data,
+	.lock_match		= lmv_lock_match,
+	.get_lustre_md		= lmv_get_lustre_md,
+	.free_lustre_md		= lmv_free_lustre_md,
+	.set_open_replay_data	= lmv_set_open_replay_data,
+	.clear_open_replay_data	= lmv_clear_open_replay_data,
+	.get_remote_perm	= lmv_get_remote_perm,
+	.intent_getattr_async	= lmv_intent_getattr_async,
+	.revalidate_lock	= lmv_revalidate_lock
 };
 
 static int __init lmv_init(void)
@@ -2812,7 +2812,7 @@ static void lmv_exit(void)
 	class_unregister_type(LUSTRE_LMV_NAME);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Logical Metadata Volume OBD driver");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
index 1c0fe65243e1..66a2492c1cc3 100644
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 2e8b566458f6..3733fdc88c8c 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index 34c1346f0dc7..b3c9c85aab9d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index 515a5c147827..2d00bad58e35 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -151,23 +151,10 @@ int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off);
 /* lov_qos.c */
 #define LOV_USES_ASSIGNED_STRIPE	0
 #define LOV_USES_DEFAULT_STRIPE	 1
-int qos_add_tgt(struct obd_device *obd, __u32 index);
-int qos_del_tgt(struct obd_device *obd, struct lov_tgt_desc *tgt);
-void qos_shrink_lsm(struct lov_request_set *set);
-int qos_prep_create(struct obd_export *exp, struct lov_request_set *set);
-void qos_update(struct lov_obd *lov);
-void qos_statfs_done(struct lov_obd *lov);
-void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait);
-int qos_remedy_create(struct lov_request_set *set, struct lov_request *req);
 
 /* lov_request.c */
-void lov_set_add_req(struct lov_request *req, struct lov_request_set *set);
-int lov_set_finished(struct lov_request_set *set, int idempotent);
-void lov_update_set(struct lov_request_set *set,
-		    struct lov_request *req, int rc);
 int lov_update_common_set(struct lov_request_set *set,
 			  struct lov_request *req, int rc);
-int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx);
 int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
 			 struct lov_request_set **reqset);
 int lov_fini_getattr_set(struct lov_request_set *set);
@@ -184,8 +171,6 @@ int lov_update_setattr_set(struct lov_request_set *set,
 int lov_fini_setattr_set(struct lov_request_set *set);
 int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
 			struct lov_request_set **reqset);
-void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
-		       int success);
 int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,
 		    int success);
 int lov_fini_statfs_set(struct lov_request_set *set);
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index 5e6228b9ca01..93fe69eb2560 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c
index dd1cf3d2d039..97115bec7cca 100644
--- a/drivers/staging/lustre/lustre/lov/lov_merge.c
+++ b/drivers/staging/lustre/lustre/lov/lov_merge.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 7abe484c07c0..6c2bdfe9cdcf 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -2277,35 +2277,35 @@ out:
 }
 
 static struct obd_ops lov_obd_ops = {
-	.o_owner	       = THIS_MODULE,
-	.o_setup	       = lov_setup,
-	.o_precleanup	  = lov_precleanup,
-	.o_cleanup	     = lov_cleanup,
-	/*.o_process_config      = lov_process_config,*/
-	.o_connect	     = lov_connect,
-	.o_disconnect	  = lov_disconnect,
-	.o_statfs	      = lov_statfs,
-	.o_statfs_async	= lov_statfs_async,
-	.o_packmd	      = lov_packmd,
-	.o_unpackmd	    = lov_unpackmd,
-	.o_create	      = lov_create,
-	.o_destroy	     = lov_destroy,
-	.o_getattr_async       = lov_getattr_async,
-	.o_setattr_async       = lov_setattr_async,
-	.o_adjust_kms	  = lov_adjust_kms,
-	.o_find_cbdata	 = lov_find_cbdata,
-	.o_iocontrol	   = lov_iocontrol,
-	.o_get_info	    = lov_get_info,
-	.o_set_info_async      = lov_set_info_async,
-	.o_notify	      = lov_notify,
-	.o_pool_new	    = lov_pool_new,
-	.o_pool_rem	    = lov_pool_remove,
-	.o_pool_add	    = lov_pool_add,
-	.o_pool_del	    = lov_pool_del,
-	.o_getref	      = lov_getref,
-	.o_putref	      = lov_putref,
-	.o_quotactl	    = lov_quotactl,
-	.o_quotacheck	  = lov_quotacheck,
+	.owner          = THIS_MODULE,
+	.setup          = lov_setup,
+	.precleanup     = lov_precleanup,
+	.cleanup        = lov_cleanup,
+	/*.process_config       = lov_process_config,*/
+	.connect        = lov_connect,
+	.disconnect     = lov_disconnect,
+	.statfs         = lov_statfs,
+	.statfs_async   = lov_statfs_async,
+	.packmd         = lov_packmd,
+	.unpackmd       = lov_unpackmd,
+	.create         = lov_create,
+	.destroy        = lov_destroy,
+	.getattr_async  = lov_getattr_async,
+	.setattr_async  = lov_setattr_async,
+	.adjust_kms     = lov_adjust_kms,
+	.find_cbdata    = lov_find_cbdata,
+	.iocontrol      = lov_iocontrol,
+	.get_info       = lov_get_info,
+	.set_info_async = lov_set_info_async,
+	.notify         = lov_notify,
+	.pool_new       = lov_pool_new,
+	.pool_rem       = lov_pool_remove,
+	.pool_add       = lov_pool_add,
+	.pool_del       = lov_pool_del,
+	.getref         = lov_getref,
+	.putref         = lov_putref,
+	.quotactl       = lov_quotactl,
+	.quotacheck     = lov_quotacheck,
 };
 
 struct kmem_cache *lov_oinfo_slab;
@@ -2352,7 +2352,7 @@ static void /*__exit*/ lov_exit(void)
 	lu_kmem_fini(lov_caches);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(LUSTRE_VERSION_STRING);
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index c7ff817bb6fb..3b79ebc8eccf 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c
index 9c8c77c05a8a..aa520aa76e09 100644
--- a/drivers/staging/lustre/lustre/lov/lov_offset.c
+++ b/drivers/staging/lustre/lustre/lov/lov_offset.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 2fb1e974cc70..6b2d1007192b 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -258,22 +258,9 @@ static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count)
 	int rc;
 
 	if (lsm_op_find(le32_to_cpu(*(__u32 *)lmm)) == NULL) {
-		char *buffer;
-		int sz;
-
 		CERROR("bad disk LOV MAGIC: 0x%08X; dumping LMM (size=%d):\n",
 		       le32_to_cpu(*(__u32 *)lmm), lmm_bytes);
-		sz = lmm_bytes * 2 + 1;
-		buffer = libcfs_kvzalloc(sz, GFP_NOFS);
-		if (buffer != NULL) {
-			int i;
-
-			for (i = 0; i < lmm_bytes; i++)
-				sprintf(buffer+2*i, "%.2X", ((char *)lmm)[i]);
-			buffer[sz - 1] = '\0';
-			CERROR("%s\n", buffer);
-			kvfree(buffer);
-		}
+		CERROR("%*phN\n", lmm_bytes, lmm);
 		return -EINVAL;
 	}
 	rc = lsm_op_find(le32_to_cpu(*(__u32 *)lmm))->lsm_lmm_verify(lmm,
diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c
index 463cadbd9d40..037ae91b74e7 100644
--- a/drivers/staging/lustre/lustre/lov/lov_page.c
+++ b/drivers/staging/lustre/lustre/lov/lov_page.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
index b03827ef6514..b43ce6cd64c2 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pool.c
@@ -412,8 +412,7 @@ int lov_pool_new(struct obd_device *obd, char *poolname)
 	if (!new_pool)
 		return -ENOMEM;
 
-	strncpy(new_pool->pool_name, poolname, LOV_MAXPOOLNAME);
-	new_pool->pool_name[LOV_MAXPOOLNAME] = '\0';
+	strlcpy(new_pool->pool_name, poolname, sizeof(new_pool->pool_name));
 	new_pool->pool_lobd = obd;
 	/* ref count init to 1 because when created a pool is always used
 	 * up to deletion
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 1a150c26798d..42deda71f577 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -74,7 +74,7 @@ void lov_finish_set(struct lov_request_set *set)
 	kfree(set);
 }
 
-int lov_set_finished(struct lov_request_set *set, int idempotent)
+static int lov_set_finished(struct lov_request_set *set, int idempotent)
 {
 	int completes = atomic_read(&set->set_completes);
 
@@ -89,8 +89,8 @@ int lov_set_finished(struct lov_request_set *set, int idempotent)
 	return 0;
 }
 
-void lov_update_set(struct lov_request_set *set,
-		    struct lov_request *req, int rc)
+static void lov_update_set(struct lov_request_set *set,
+			   struct lov_request *req, int rc)
 {
 	req->rq_complete = 1;
 	req->rq_rc = rc;
@@ -118,7 +118,8 @@ int lov_update_common_set(struct lov_request_set *set,
 	return rc;
 }
 
-void lov_set_add_req(struct lov_request *req, struct lov_request_set *set)
+static void lov_set_add_req(struct lov_request *req,
+			    struct lov_request_set *set)
 {
 	list_add_tail(&req->rq_link, &set->set_list);
 	set->set_count++;
@@ -144,7 +145,7 @@ static int lov_check_set(struct lov_obd *lov, int idx)
  * If the OSC has not yet had a chance to connect to the OST the first time,
  * wait once for it to connect instead of returning an error.
  */
-int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx)
+static int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx)
 {
 	wait_queue_head_t waitq;
 	struct l_wait_info lwi;
@@ -591,8 +592,9 @@ int lov_fini_statfs_set(struct lov_request_set *set)
 	return rc;
 }
 
-void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
-		       int success)
+static void lov_update_statfs(struct obd_statfs *osfs,
+			      struct obd_statfs *lov_sfs,
+			      int success)
 {
 	int shift = 0, quit = 0;
 	__u64 tmp;
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
index 8bc04c8d3d60..f1795c3e2db5 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2013, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c
index d775e28d4097..5ba5ee1b8681 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_object.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
index a0be15c6b55a..337241d84980 100644
--- a/drivers/staging/lustre/lustre/lov/lproc_lov.c
+++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
index 1c95f87a0e2a..38f267a60f59 100644
--- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
+++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -82,82 +82,6 @@ static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
 }
 LUSTRE_RW_ATTR(max_rpcs_in_flight);
 
-static int mdc_kuc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, NULL, inode->i_private);
-}
-
-/* temporary for testing */
-static ssize_t mdc_kuc_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *obd =
-			((struct seq_file *)file->private_data)->private;
-	struct kuc_hdr		*lh;
-	struct hsm_action_list	*hal;
-	struct hsm_action_item	*hai;
-	int			 len;
-	int			 fd, rc;
-
-	rc = lprocfs_write_helper(buffer, count, &fd);
-	if (rc)
-		return rc;
-
-	if (fd < 0)
-		return -ERANGE;
-	CWARN("message to fd %d\n", fd);
-
-	len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
-		/* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
-
-	lh = kzalloc(len, GFP_NOFS);
-	if (!lh)
-		return -ENOMEM;
-
-	lh->kuc_magic = KUC_MAGIC;
-	lh->kuc_transport = KUC_TRANSPORT_HSM;
-	lh->kuc_msgtype = HMT_ACTION_LIST;
-	lh->kuc_msglen = len;
-
-	hal = (struct hsm_action_list *)(lh + 1);
-	hal->hal_version = HAL_VERSION;
-	hal->hal_archive_id = 1;
-	hal->hal_flags = 0;
-	obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
-
-	/* mock up an action list */
-	hal->hal_count = 2;
-	hai = hai_zero(hal);
-	hai->hai_action = HSMA_ARCHIVE;
-	hai->hai_fid.f_oid = 5;
-	hai->hai_len = sizeof(*hai);
-	hai = hai_next(hai);
-	hai->hai_action = HSMA_RESTORE;
-	hai->hai_fid.f_oid = 10;
-	hai->hai_len = sizeof(*hai);
-
-	/* This works for either broadcast or unicast to a single fd */
-	if (fd == 0) {
-		rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
-	} else {
-		struct file *fp = fget(fd);
-
-		rc = libcfs_kkuc_msg_put(fp, lh);
-		fput(fp);
-	}
-	kfree(lh);
-	if (rc < 0)
-		return rc;
-	return count;
-}
-
-static struct file_operations mdc_kuc_fops = {
-	.open		= mdc_kuc_open,
-	.write		= mdc_kuc_write,
-	.release	= single_release,
-};
-
 LPROC_SEQ_FOPS_WR_ONLY(mdc, ping);
 
 LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
@@ -196,7 +120,6 @@ static struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
 	{ "timeouts",		&mdc_timeouts_fops,		NULL, 0 },
 	{ "import",		&mdc_import_fops,		NULL, 0 },
 	{ "state",		&mdc_state_fops,		NULL, 0 },
-	{ "hsm_nl",		&mdc_kuc_fops,			NULL, 0200 },
 	{ "pinger_recov",	&mdc_pinger_recov_fops,		NULL, 0 },
 	{ NULL }
 };
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
index 29b46f754726..3d2997a161b6 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -44,7 +44,6 @@ void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars);
 
 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
 		   __u64 valid, int ea_size, __u32 suppgid, int flags);
-int mdc_pack_req(struct ptlrpc_request *req, int version, int opc);
 void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
 			const struct lu_fid *cfid, int flags);
 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
@@ -62,7 +61,6 @@ void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
 		   __u32 mode, __u64 rdev, __u64 flags, const void *data,
 		   int datalen);
 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
 		     const char *old, int oldlen, const char *new, int newlen);
@@ -97,25 +95,12 @@ int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
 /* mdc/mdc_request.c */
 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
 		  struct md_op_data *op_data);
-
-int mdc_open(struct obd_export *exp, u64 ino, int type, int flags,
-	     struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
-	     struct ptlrpc_request **);
-
 struct obd_client_handle;
 
-int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
-		      struct obd_export *dt_exp, struct obd_export *lmv_exp,
-		      struct lustre_md *md);
-
-int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
-
 int mdc_set_open_replay_data(struct obd_export *exp,
 			     struct obd_client_handle *och,
 			     struct lookup_intent *it);
 
-int mdc_clear_open_replay_data(struct obd_export *exp,
-			       struct obd_client_handle *och);
 void mdc_commit_open(struct ptlrpc_request *req);
 void mdc_replay_open(struct ptlrpc_request *req);
 
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
index 227fc9ee0dcf..7218532ffea3 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index d4bf34b61f3a..ef9a1e124ea4 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
index c87c7d8efa07..ac7695a10753 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 16a5a10d371e..57e0fc1e8549 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -447,9 +447,11 @@ static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
 #define mdc_unpack_acl(req, md) 0
 #endif
 
-int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
-		      struct obd_export *dt_exp, struct obd_export *md_exp,
-		      struct lustre_md *md)
+static int mdc_get_lustre_md(struct obd_export *exp,
+			     struct ptlrpc_request *req,
+			     struct obd_export *dt_exp,
+			     struct obd_export *md_exp,
+			     struct lustre_md *md)
 {
 	struct req_capsule *pill = &req->rq_pill;
 	int rc;
@@ -573,7 +575,7 @@ out:
 	return rc;
 }
 
-int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
+static int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
 {
 	return 0;
 }
@@ -737,8 +739,8 @@ static void mdc_free_open(struct md_open_data *mod)
 		ptlrpc_request_committed(mod->mod_close_req, committed);
 }
 
-int mdc_clear_open_replay_data(struct obd_export *exp,
-			       struct obd_client_handle *och)
+static int mdc_clear_open_replay_data(struct obd_export *exp,
+				      struct obd_client_handle *och)
 {
 	struct md_open_data *mod = och->och_mod;
 
@@ -1179,7 +1181,6 @@ static int mdc_ioc_hsm_progress(struct obd_export *exp,
 	ptlrpc_request_set_replen(req);
 
 	rc = mdc_queue_wait(req);
-	goto out;
 out:
 	ptlrpc_req_finished(req);
 	return rc;
@@ -1214,7 +1215,6 @@ static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
 	ptlrpc_request_set_replen(req);
 
 	rc = mdc_queue_wait(req);
-	goto out;
 out:
 	ptlrpc_req_finished(req);
 	return rc;
@@ -1280,7 +1280,6 @@ static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
 	ptlrpc_request_set_replen(req);
 
 	rc = mdc_queue_wait(req);
-	goto out;
 out:
 	ptlrpc_req_finished(req);
 	return rc;
@@ -1360,8 +1359,6 @@ static int mdc_ioc_hsm_state_set(struct obd_export *exp,
 	ptlrpc_request_set_replen(req);
 
 	rc = mdc_queue_wait(req);
-	goto out;
-
 out:
 	ptlrpc_req_finished(req);
 	return rc;
@@ -1425,8 +1422,6 @@ static int mdc_ioc_hsm_request(struct obd_export *exp,
 	ptlrpc_request_set_replen(req);
 
 	rc = mdc_queue_wait(req);
-	goto out;
-
 out:
 	ptlrpc_req_finished(req);
 	return rc;
@@ -2035,17 +2030,6 @@ static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg)
 	return ((rc != 0) && (rc != -EEXIST)) ? rc : 0;
 }
 
-/**
- * Re-establish all kuc contexts with MDT
- * after MDT shutdown/recovery.
- */
-static int mdc_kuc_reregister(struct obd_import *imp)
-{
-	/* re-register HSM agents */
-	return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister,
-					 (void *)imp);
-}
-
 static int mdc_set_info_async(const struct lu_env *env,
 			      struct obd_export *exp,
 			      u32 keylen, void *key,
@@ -2208,7 +2192,10 @@ static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
 		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
 		/* redo the kuc registration after reconnecting */
 		if (rc == 0)
-			rc = mdc_kuc_reregister(imp);
+			/* re-register HSM agents */
+			rc = libcfs_kkuc_group_foreach(KUC_GRP_HSM,
+						       mdc_hsm_ct_reregister,
+						       (void *)imp);
 		break;
 	case IMP_EVENT_OCD:
 		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
@@ -2460,59 +2447,59 @@ static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
 }
 
 static struct obd_ops mdc_obd_ops = {
-	.o_owner	    = THIS_MODULE,
-	.o_setup	    = mdc_setup,
-	.o_precleanup       = mdc_precleanup,
-	.o_cleanup	  = mdc_cleanup,
-	.o_add_conn	 = client_import_add_conn,
-	.o_del_conn	 = client_import_del_conn,
-	.o_connect          = client_connect_import,
-	.o_disconnect       = client_disconnect_export,
-	.o_iocontrol	= mdc_iocontrol,
-	.o_set_info_async   = mdc_set_info_async,
-	.o_statfs	   = mdc_statfs,
-	.o_fid_init	    = client_fid_init,
-	.o_fid_fini	    = client_fid_fini,
-	.o_fid_alloc	= mdc_fid_alloc,
-	.o_import_event     = mdc_import_event,
-	.o_get_info	 = mdc_get_info,
-	.o_process_config   = mdc_process_config,
-	.o_get_uuid	 = mdc_get_uuid,
-	.o_quotactl	 = mdc_quotactl,
-	.o_quotacheck       = mdc_quotacheck
+	.owner          = THIS_MODULE,
+	.setup          = mdc_setup,
+	.precleanup     = mdc_precleanup,
+	.cleanup        = mdc_cleanup,
+	.add_conn       = client_import_add_conn,
+	.del_conn       = client_import_del_conn,
+	.connect        = client_connect_import,
+	.disconnect     = client_disconnect_export,
+	.iocontrol      = mdc_iocontrol,
+	.set_info_async = mdc_set_info_async,
+	.statfs         = mdc_statfs,
+	.fid_init       = client_fid_init,
+	.fid_fini       = client_fid_fini,
+	.fid_alloc      = mdc_fid_alloc,
+	.import_event   = mdc_import_event,
+	.get_info       = mdc_get_info,
+	.process_config = mdc_process_config,
+	.get_uuid       = mdc_get_uuid,
+	.quotactl       = mdc_quotactl,
+	.quotacheck     = mdc_quotacheck
 };
 
 static struct md_ops mdc_md_ops = {
-	.m_getstatus	= mdc_getstatus,
-	.m_null_inode	    = mdc_null_inode,
-	.m_find_cbdata      = mdc_find_cbdata,
-	.m_close	    = mdc_close,
-	.m_create	   = mdc_create,
-	.m_done_writing     = mdc_done_writing,
-	.m_enqueue	  = mdc_enqueue,
-	.m_getattr	  = mdc_getattr,
-	.m_getattr_name     = mdc_getattr_name,
-	.m_intent_lock      = mdc_intent_lock,
-	.m_link	     = mdc_link,
-	.m_is_subdir	= mdc_is_subdir,
-	.m_rename	   = mdc_rename,
-	.m_setattr	  = mdc_setattr,
-	.m_setxattr	 = mdc_setxattr,
-	.m_getxattr	 = mdc_getxattr,
-	.m_sync	     = mdc_sync,
-	.m_readpage	 = mdc_readpage,
-	.m_unlink	   = mdc_unlink,
-	.m_cancel_unused    = mdc_cancel_unused,
-	.m_init_ea_size     = mdc_init_ea_size,
-	.m_set_lock_data    = mdc_set_lock_data,
-	.m_lock_match       = mdc_lock_match,
-	.m_get_lustre_md    = mdc_get_lustre_md,
-	.m_free_lustre_md   = mdc_free_lustre_md,
-	.m_set_open_replay_data = mdc_set_open_replay_data,
-	.m_clear_open_replay_data = mdc_clear_open_replay_data,
-	.m_get_remote_perm  = mdc_get_remote_perm,
-	.m_intent_getattr_async = mdc_intent_getattr_async,
-	.m_revalidate_lock      = mdc_revalidate_lock
+	.getstatus		= mdc_getstatus,
+	.null_inode		= mdc_null_inode,
+	.find_cbdata		= mdc_find_cbdata,
+	.close			= mdc_close,
+	.create			= mdc_create,
+	.done_writing		= mdc_done_writing,
+	.enqueue		= mdc_enqueue,
+	.getattr		= mdc_getattr,
+	.getattr_name		= mdc_getattr_name,
+	.intent_lock		= mdc_intent_lock,
+	.link			= mdc_link,
+	.is_subdir		= mdc_is_subdir,
+	.rename			= mdc_rename,
+	.setattr		= mdc_setattr,
+	.setxattr		= mdc_setxattr,
+	.getxattr		= mdc_getxattr,
+	.sync			= mdc_sync,
+	.readpage		= mdc_readpage,
+	.unlink			= mdc_unlink,
+	.cancel_unused		= mdc_cancel_unused,
+	.init_ea_size		= mdc_init_ea_size,
+	.set_lock_data		= mdc_set_lock_data,
+	.lock_match		= mdc_lock_match,
+	.get_lustre_md		= mdc_get_lustre_md,
+	.free_lustre_md		= mdc_free_lustre_md,
+	.set_open_replay_data	= mdc_set_open_replay_data,
+	.clear_open_replay_data	= mdc_clear_open_replay_data,
+	.get_remote_perm	= mdc_get_remote_perm,
+	.intent_getattr_async	= mdc_intent_getattr_async,
+	.revalidate_lock	= mdc_revalidate_lock
 };
 
 static int __init mdc_init(void)
@@ -2530,7 +2517,7 @@ static void /*__exit*/ mdc_exit(void)
 	class_unregister_type(LUSTRE_MDC_NAME);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Metadata Client");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
index 5f53f3b7ceff..ab4800c20a95 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -463,7 +463,7 @@ int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
 	}
 	spin_unlock(&config_list_lock);
 
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	return 0;
 }
 
@@ -1293,7 +1293,7 @@ static int mgc_process_recover_log(struct obd_device *obd,
 	struct page **pages;
 	int nrpages;
 	bool eof = true;
-	bool mne_swab = false;
+	bool mne_swab;
 	int i;
 	int ealen;
 	int rc;
@@ -1698,20 +1698,20 @@ out:
 }
 
 static struct obd_ops mgc_obd_ops = {
-	.o_owner	= THIS_MODULE,
-	.o_setup	= mgc_setup,
-	.o_precleanup   = mgc_precleanup,
-	.o_cleanup      = mgc_cleanup,
-	.o_add_conn     = client_import_add_conn,
-	.o_del_conn     = client_import_del_conn,
-	.o_connect      = client_connect_import,
-	.o_disconnect   = client_disconnect_export,
-	/* .o_enqueue      = mgc_enqueue, */
-	/* .o_iocontrol    = mgc_iocontrol, */
-	.o_set_info_async = mgc_set_info_async,
-	.o_get_info       = mgc_get_info,
-	.o_import_event = mgc_import_event,
-	.o_process_config = mgc_process_config,
+	.owner          = THIS_MODULE,
+	.setup          = mgc_setup,
+	.precleanup     = mgc_precleanup,
+	.cleanup        = mgc_cleanup,
+	.add_conn       = client_import_add_conn,
+	.del_conn       = client_import_del_conn,
+	.connect        = client_connect_import,
+	.disconnect     = client_disconnect_export,
+	/* .enqueue     = mgc_enqueue, */
+	/* .iocontrol   = mgc_iocontrol, */
+	.set_info_async = mgc_set_info_async,
+	.get_info       = mgc_get_info,
+	.import_event   = mgc_import_event,
+	.process_config = mgc_process_config,
 };
 
 static int __init mgc_init(void)
@@ -1725,7 +1725,7 @@ static void /*__exit*/ mgc_exit(void)
 	class_unregister_type(LUSTRE_MGC_NAME);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Management Client");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/staging/lustre/lustre/obdclass/acl.c b/drivers/staging/lustre/lustre/obdclass/acl.c
index 2e20cf635b27..49ba8851c8ac 100644
--- a/drivers/staging/lustre/lustre/obdclass/acl.c
+++ b/drivers/staging/lustre/lustre/obdclass/acl.c
@@ -236,15 +236,6 @@ _out:
 EXPORT_SYMBOL(lustre_posix_acl_xattr_filter);
 
 /*
- * Release the posix ACL space.
- */
-void lustre_posix_acl_xattr_free(posix_acl_xattr_header *header, int size)
-{
-	kfree(header);
-}
-EXPORT_SYMBOL(lustre_posix_acl_xattr_free);
-
-/*
  * Release the extended ACL space.
  */
 void lustre_ext_acl_xattr_free(ext_acl_xattr_header *header)
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
index e67cea758405..63246ba36798 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -236,16 +236,11 @@ int cl_io_rw_init(const struct lu_env *env, struct cl_io *io,
 }
 EXPORT_SYMBOL(cl_io_rw_init);
 
-static inline const struct lu_fid *
-cl_lock_descr_fid(const struct cl_lock_descr *descr)
-{
-	return lu_object_fid(&descr->cld_obj->co_lu);
-}
-
 static int cl_lock_descr_sort(const struct cl_lock_descr *d0,
 			      const struct cl_lock_descr *d1)
 {
-	return lu_fid_cmp(cl_lock_descr_fid(d0), cl_lock_descr_fid(d1)) ?:
+	return lu_fid_cmp(lu_object_fid(&d0->cld_obj->co_lu),
+			  lu_object_fid(&d1->cld_obj->co_lu)) ?:
 		__diff_normalize(d0->cld_start, d1->cld_start);
 }
 
@@ -254,7 +249,8 @@ static int cl_lock_descr_cmp(const struct cl_lock_descr *d0,
 {
 	int ret;
 
-	ret = lu_fid_cmp(cl_lock_descr_fid(d0), cl_lock_descr_fid(d1));
+	ret = lu_fid_cmp(lu_object_fid(&d0->cld_obj->co_lu),
+			 lu_object_fid(&d1->cld_obj->co_lu));
 	if (ret)
 		return ret;
 	if (d0->cld_end < d1->cld_start)
@@ -1216,15 +1212,6 @@ void cl_2queue_init(struct cl_2queue *queue)
 EXPORT_SYMBOL(cl_2queue_init);
 
 /**
- * Add a page to the incoming page list of 2-queue.
- */
-void cl_2queue_add(struct cl_2queue *queue, struct cl_page *page)
-{
-	cl_page_list_add(&queue->c2_qin, page);
-}
-EXPORT_SYMBOL(cl_2queue_add);
-
-/**
  * Disown pages in both lists of a 2-queue.
  */
 void cl_2queue_disown(const struct lu_env *env,
@@ -1262,7 +1249,10 @@ EXPORT_SYMBOL(cl_2queue_fini);
 void cl_2queue_init_page(struct cl_2queue *queue, struct cl_page *page)
 {
 	cl_2queue_init(queue);
-	cl_2queue_add(queue, page);
+	/*
+	 * Add a page to the incoming page list of 2-queue.
+	 */
+	cl_page_list_add(&queue->c2_qin, page);
 }
 EXPORT_SYMBOL(cl_2queue_init_page);
 
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
index 5621bebf33a9..1836dc01499a 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
@@ -687,7 +687,7 @@ EXPORT_SYMBOL(cl_lock_mutex_get);
  *
  * \see cl_lock_mutex_get()
  */
-int cl_lock_mutex_try(const struct lu_env *env, struct cl_lock *lock)
+static int cl_lock_mutex_try(const struct lu_env *env, struct cl_lock *lock)
 {
 	int result;
 
@@ -705,7 +705,6 @@ int cl_lock_mutex_try(const struct lu_env *env, struct cl_lock *lock)
 		result = -EBUSY;
 	return result;
 }
-EXPORT_SYMBOL(cl_lock_mutex_try);
 
 /**
  {* Unlocks cl_lock object.
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
index a1a6024220ff..57c8d5412bbd 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -704,7 +704,7 @@ static inline struct cl_env *cl_env_container(struct lu_env *env)
 	return container_of(env, struct cl_env, ce_lu);
 }
 
-struct lu_env *cl_env_peek(int *refcheck)
+static struct lu_env *cl_env_peek(int *refcheck)
 {
 	struct lu_env *env;
 	struct cl_env *cle;
@@ -724,7 +724,6 @@ struct lu_env *cl_env_peek(int *refcheck)
 	CDEBUG(D_OTHER, "%d@%p\n", cle ? cle->ce_ref : 0, cle);
 	return env;
 }
-EXPORT_SYMBOL(cl_env_peek);
 
 /**
  * Returns lu_env: if there already is an environment associated with the
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c
index 2f569edd0811..61f28ebfc058 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_page.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index 3e9c24684690..0975e443057c 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -576,7 +576,7 @@ static void cleanup_obdclass(void)
 	obd_zombie_impexp_stop();
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
 MODULE_LICENSE("GPL");
 MODULE_VERSION(LUSTRE_VERSION_STRING);
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 6477aeb88028..228c44c37c4a 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -27,7 +27,7 @@
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -132,7 +132,7 @@ static struct obd_type *class_get_type(const char *name)
 	if (type) {
 		spin_lock(&type->obd_type_lock);
 		type->typ_refcnt++;
-		try_module_get(type->typ_dt_ops->o_owner);
+		try_module_get(type->typ_dt_ops->owner);
 		spin_unlock(&type->obd_type_lock);
 	}
 	return type;
@@ -143,7 +143,7 @@ void class_put_type(struct obd_type *type)
 	LASSERT(type);
 	spin_lock(&type->obd_type_lock);
 	type->typ_refcnt--;
-	module_put(type->typ_dt_ops->o_owner);
+	module_put(type->typ_dt_ops->owner);
 	spin_unlock(&type->obd_type_lock);
 }
 EXPORT_SYMBOL(class_put_type);
@@ -155,7 +155,7 @@ int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops,
 			struct lu_device_type *ldt)
 {
 	struct obd_type *type;
-	int rc = 0;
+	int rc;
 
 	/* sanity check */
 	LASSERT(strnlen(name, CLASS_MAX_NAME) < CLASS_MAX_NAME);
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
index 518288df4d53..42fc26f4ae25 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
@@ -27,7 +27,7 @@
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c
index 7cb55ef79737..f956d7ed6785 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_cat.c b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
index c442cae5fd37..0f05e9c4a5b2 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_cat.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_internal.h b/drivers/staging/lustre/lustre/obdclass/llog_internal.h
index b9fe4b01c690..7fb48dda355e 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_internal.h
+++ b/drivers/staging/lustre/lustre/obdclass/llog_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_obd.c b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
index 3900b9d4007e..9bc51998c05c 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
index 9354f75b5cab..3aa7393b20c3 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index 333ac7d269b7..51fe15f5d687 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -502,7 +502,7 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
 		   obd2cli_tgt(obd), imp_state_name,
 		   imp->imp_deactive ? "\tDEACTIVATED" : "");
 
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 
 	return 0;
 }
@@ -526,7 +526,7 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
 	else
 		seq_puts(m, "<none>\n");
 
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 
 	return 0;
 }
@@ -665,15 +665,18 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
 		seq_printf(m, "%s%s", j ? ", " : "", nidstr);
 		j++;
 	}
-	libcfs_nid2str_r(imp->imp_connection->c_peer.nid,
-			 nidstr, sizeof(nidstr));
+	if (imp->imp_connection != NULL)
+		libcfs_nid2str_r(imp->imp_connection->c_peer.nid,
+				 nidstr, sizeof(nidstr));
+	else
+		strncpy(nidstr, "<none>", sizeof(nidstr));
 	seq_printf(m,
 		      "]\n"
 		      "       current_connection: %s\n"
 		      "       connection_attempts: %u\n"
 		      "       generation: %u\n"
 		      "       in-progress_invalidations: %u\n",
-		      imp->imp_connection == NULL ? "<none>" : nidstr,
+		      nidstr,
 		      imp->imp_conn_cnt,
 		      imp->imp_generation,
 		      atomic_read(&imp->imp_inval_count));
@@ -765,7 +768,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data)
 	}
 
 out_climp:
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_import);
@@ -796,7 +799,7 @@ int lprocfs_rd_state(struct seq_file *m, void *data)
 			   ptlrpc_import_state_name(ish->ish_state));
 	}
 
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_state);
@@ -857,7 +860,7 @@ int lprocfs_rd_timeouts(struct seq_file *m, void *data)
 		lprocfs_at_hist_helper(m, &imp->imp_at.iat_service_estimate[i]);
 	}
 
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_timeouts);
@@ -876,7 +879,7 @@ int lprocfs_rd_connect_flags(struct seq_file *m, void *data)
 	seq_printf(m, "flags=%#llx\n", flags);
 	obd_connect_seq_flags2str(m, flags, "\n");
 	seq_printf(m, "\n");
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	return 0;
 }
 EXPORT_SYMBOL(lprocfs_rd_connect_flags);
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 0193608a930a..ce248f4072c2 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -916,7 +916,7 @@ static void lu_obj_hop_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 	LBUG(); /* we should never called it */
 }
 
-struct cfs_hash_ops lu_site_hash_ops = {
+static struct cfs_hash_ops lu_site_hash_ops = {
 	.hs_hash	= lu_obj_hop_hash,
 	.hs_key		= lu_obj_hop_key,
 	.hs_keycmp      = lu_obj_hop_keycmp,
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index c231e0da0e2a..49cdc647910c 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index 48003d5325e3..b5aa8168dbff 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -892,7 +892,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 	}
 	lmd->lmd_magic = LMD_MAGIC;
 
-	lmd->lmd_params = kzalloc(4096, GFP_NOFS);
+	lmd->lmd_params = kzalloc(LMD_PARAMS_MAXLEN, GFP_NOFS);
 	if (!lmd->lmd_params)
 		return -ENOMEM;
 	lmd->lmd_params[0] = '\0';
@@ -978,7 +978,7 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 				goto invalid;
 			clear++;
 		} else if (strncmp(s1, "param=", 6) == 0) {
-			int length;
+			size_t length, params_length;
 			char *tail = strchr(s1 + 6, ',');
 
 			if (tail == NULL)
@@ -986,8 +986,12 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 			else
 				length = tail - s1;
 			length -= 6;
+			params_length = strlen(lmd->lmd_params);
+			if (params_length + length + 1 >= LMD_PARAMS_MAXLEN)
+				return -E2BIG;
 			strncat(lmd->lmd_params, s1 + 6, length);
-			strcat(lmd->lmd_params, " ");
+			lmd->lmd_params[params_length + length] = '\0';
+			strlcat(lmd->lmd_params, " ", LMD_PARAMS_MAXLEN);
 			clear++;
 		} else if (strncmp(s1, "osd=", 4) == 0) {
 			rc = lmd_parse_string(&lmd->lmd_osd_type, s1 + 4);
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index a4a9a763ff02..7b53f7dd1797 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1228,8 +1228,10 @@ static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset,
 			cl_page_put(env, clp);
 			break;
 		}
-
-		cl_2queue_add(queue, clp);
+		/*
+		 * Add a page to the incoming page list of 2-queue.
+		 */
+		cl_page_list_add(&queue->c2_qin, clp);
 
 		/* drop the reference count for cl_page_find, so that the page
 		 * will be freed in cl_2queue_fini. */
@@ -2130,10 +2132,10 @@ static int echo_client_disconnect(struct obd_export *exp)
 }
 
 static struct obd_ops echo_client_obd_ops = {
-	.o_owner       = THIS_MODULE,
-	.o_iocontrol   = echo_client_iocontrol,
-	.o_connect     = echo_client_connect,
-	.o_disconnect  = echo_client_disconnect
+	.owner          = THIS_MODULE,
+	.iocontrol      = echo_client_iocontrol,
+	.connect        = echo_client_connect,
+	.disconnect     = echo_client_disconnect
 };
 
 static int echo_client_init(void)
@@ -2172,7 +2174,7 @@ static void /*__exit*/ obdecho_exit(void)
 
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Testing Echo OBD driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(LUSTRE_VERSION_STRING);
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
index c4d44e70f1d7..1091536fc90d 100644
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index b1d1a87f05e3..2229419b7184 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  *
  */
 /*
@@ -619,9 +619,9 @@ static inline int overlapped(struct osc_extent *ex1, struct osc_extent *ex2)
  * Find or create an extent which includes @index, core function to manage
  * extent tree.
  */
-struct osc_extent *osc_extent_find(const struct lu_env *env,
-				   struct osc_object *obj, pgoff_t index,
-				   int *grants)
+static struct osc_extent *osc_extent_find(const struct lu_env *env,
+					  struct osc_object *obj, pgoff_t index,
+					  int *grants)
 
 {
 	struct client_obd *cli = osc_cli(obj);
@@ -1420,8 +1420,8 @@ static void __osc_unreserve_grant(struct client_obd *cli,
 	}
 }
 
-void osc_unreserve_grant(struct client_obd *cli,
-			 unsigned int reserved, unsigned int unused)
+static void osc_unreserve_grant(struct client_obd *cli,
+				unsigned int reserved, unsigned int unused)
 {
 	client_obd_list_lock(&cli->cl_loi_list_lock);
 	__osc_unreserve_grant(cli, reserved, unused);
diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
index d2d68452d382..415c27e4ab66 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_dev.c b/drivers/staging/lustre/lustre/osc/osc_dev.c
index 69b523c0f570..7078cc57d8b9 100644
--- a/drivers/staging/lustre/lustre/osc/osc_dev.c
+++ b/drivers/staging/lustre/lustre/osc/osc_dev.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h
index 5ed30ecc84e3..a4c61463b1c7 100644
--- a/drivers/staging/lustre/lustre/osc/osc_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -89,11 +89,6 @@ struct osc_cache_waiter {
 	int		     ocw_rc;
 };
 
-int osc_create(const struct lu_env *env, struct obd_export *exp,
-	       struct obdo *oa, struct lov_stripe_md **ea,
-	       struct obd_trans_info *oti);
-int osc_real_create(struct obd_export *exp, struct obdo *oa,
-		    struct lov_stripe_md **ea, struct obd_trans_info *oti);
 void osc_wake_cache_waiters(struct client_obd *cli);
 int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes);
 void osc_update_next_shrink(struct client_obd *cli);
@@ -137,7 +132,6 @@ int osc_lru_shrink(struct client_obd *cli, int target);
 
 extern spinlock_t osc_ast_guard;
 
-int osc_cleanup(struct obd_device *obd);
 int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
 
 int lproc_osc_attach_seqstat(struct obd_device *dev);
diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
index d413496c0f63..abd0beb483fe 100644
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ b/drivers/staging/lustre/lustre/osc/osc_io.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
index 194490dcaca9..71f2810d18b9 100644
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ b/drivers/staging/lustre/lustre/osc/osc_lock.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c
index ba57f8df5c7f..fdd6219aacf6 100644
--- a/drivers/staging/lustre/lustre/osc/osc_object.c
+++ b/drivers/staging/lustre/lustre/osc/osc_object.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -158,8 +158,8 @@ static int osc_attr_get(const struct lu_env *env, struct cl_object *obj,
 	return 0;
 }
 
-int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
-		 const struct cl_attr *attr, unsigned valid)
+static int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
+			const struct cl_attr *attr, unsigned valid)
 {
 	struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
 	struct ost_lvb *lvb = &oinfo->loi_lvb;
diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c
index 61eaf7172fdf..2439d804fe75 100644
--- a/drivers/staging/lustre/lustre/osc/osc_page.c
+++ b/drivers/staging/lustre/lustre/osc/osc_page.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/osc/osc_quota.c b/drivers/staging/lustre/lustre/osc/osc_quota.c
index 199783103f71..e70e7961d763 100644
--- a/drivers/staging/lustre/lustre/osc/osc_quota.c
+++ b/drivers/staging/lustre/lustre/osc/osc_quota.c
@@ -23,7 +23,7 @@
 /*
  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  *
  * Code originally extracted from quota directory
  */
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 367f83af12c0..7034f0a942c5 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -104,7 +104,7 @@ struct osc_enqueue_args {
 static void osc_release_ppga(struct brw_page **ppga, u32 count);
 static int brw_interpret(const struct lu_env *env,
 			 struct ptlrpc_request *req, void *data, int rc);
-int osc_cleanup(struct obd_device *obd);
+static int osc_cleanup(struct obd_device *obd);
 
 /* Pack OSC object metadata for disk storage (LE byte order). */
 static int osc_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
@@ -431,8 +431,9 @@ static int osc_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
 				      oinfo->oi_cb_up, oinfo, rqset);
 }
 
-int osc_real_create(struct obd_export *exp, struct obdo *oa,
-		    struct lov_stripe_md **ea, struct obd_trans_info *oti)
+static int osc_real_create(struct obd_export *exp, struct obdo *oa,
+			   struct lov_stripe_md **ea,
+			   struct obd_trans_info *oti)
 {
 	struct ptlrpc_request *req;
 	struct ost_body *body;
@@ -689,9 +690,9 @@ static int osc_can_send_destroy(struct client_obd *cli)
 	return 0;
 }
 
-int osc_create(const struct lu_env *env, struct obd_export *exp,
-	       struct obdo *oa, struct lov_stripe_md **ea,
-	       struct obd_trans_info *oti)
+static int osc_create(const struct lu_env *env, struct obd_export *exp,
+		      struct obdo *oa, struct lov_stripe_md **ea,
+		      struct obd_trans_info *oti)
 {
 	int rc = 0;
 
@@ -2726,7 +2727,7 @@ static int osc_get_info(const struct lu_env *env, struct obd_export *exp,
 		}
 
 		*((u64 *)val) = *reply;
-	out:
+out:
 		ptlrpc_req_finished(req);
 		return rc;
 	} else if (KEY_IS(KEY_FIEMAP)) {
@@ -3255,33 +3256,33 @@ static int osc_process_config(struct obd_device *obd, u32 len, void *buf)
 }
 
 struct obd_ops osc_obd_ops = {
-	.o_owner		= THIS_MODULE,
-	.o_setup		= osc_setup,
-	.o_precleanup	   = osc_precleanup,
-	.o_cleanup	      = osc_cleanup,
-	.o_add_conn	     = client_import_add_conn,
-	.o_del_conn	     = client_import_del_conn,
-	.o_connect	      = client_connect_import,
-	.o_reconnect	    = osc_reconnect,
-	.o_disconnect	   = osc_disconnect,
-	.o_statfs	       = osc_statfs,
-	.o_statfs_async	 = osc_statfs_async,
-	.o_packmd	       = osc_packmd,
-	.o_unpackmd	     = osc_unpackmd,
-	.o_create	       = osc_create,
-	.o_destroy	      = osc_destroy,
-	.o_getattr	      = osc_getattr,
-	.o_getattr_async	= osc_getattr_async,
-	.o_setattr	      = osc_setattr,
-	.o_setattr_async	= osc_setattr_async,
-	.o_find_cbdata	  = osc_find_cbdata,
-	.o_iocontrol	    = osc_iocontrol,
-	.o_get_info	     = osc_get_info,
-	.o_set_info_async       = osc_set_info_async,
-	.o_import_event	 = osc_import_event,
-	.o_process_config       = osc_process_config,
-	.o_quotactl	     = osc_quotactl,
-	.o_quotacheck	   = osc_quotacheck,
+	.owner          = THIS_MODULE,
+	.setup          = osc_setup,
+	.precleanup     = osc_precleanup,
+	.cleanup        = osc_cleanup,
+	.add_conn       = client_import_add_conn,
+	.del_conn       = client_import_del_conn,
+	.connect        = client_connect_import,
+	.reconnect      = osc_reconnect,
+	.disconnect     = osc_disconnect,
+	.statfs         = osc_statfs,
+	.statfs_async   = osc_statfs_async,
+	.packmd         = osc_packmd,
+	.unpackmd       = osc_unpackmd,
+	.create         = osc_create,
+	.destroy        = osc_destroy,
+	.getattr        = osc_getattr,
+	.getattr_async  = osc_getattr_async,
+	.setattr        = osc_setattr,
+	.setattr_async  = osc_setattr_async,
+	.find_cbdata    = osc_find_cbdata,
+	.iocontrol      = osc_iocontrol,
+	.get_info       = osc_get_info,
+	.set_info_async = osc_set_info_async,
+	.import_event   = osc_import_event,
+	.process_config = osc_process_config,
+	.quotactl       = osc_quotactl,
+	.quotacheck     = osc_quotacheck,
 };
 
 extern struct lu_kmem_descr osc_caches[];
@@ -3357,7 +3358,7 @@ static void /*__exit*/ osc_exit(void)
 	ptlrpc_free_rq_pool(osc_rq_pool);
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Object Storage Client (OSC)");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(LUSTRE_VERSION_STRING);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index a9f1bf536da9..efdda09507bf 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/events.c b/drivers/staging/lustre/lustre/ptlrpc/events.c
index 9c2fd34e2eb9..990156986986 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/events.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/events.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015 Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c
index bfa410f7e773..f752c789bda0 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/import.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index d7c4f47808bd..c0e613c23854 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
index 5122205cbb99..e87702073f1f 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
index afab0dee7a5c..cc55b7973721 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -1197,7 +1197,7 @@ int lprocfs_wr_ping(struct file *file, const char __user *buffer,
 		return rc;
 
 	req = ptlrpc_prep_ping(obd->u.cli.cl_import);
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 	if (req == NULL)
 		return -ENOMEM;
 
@@ -1291,7 +1291,7 @@ int lprocfs_rd_pinger_recov(struct seq_file *m, void *n)
 		return rc;
 
 	seq_printf(m, "%d\n", !imp->imp_no_pinger_recover);
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 
 	return 0;
 }
@@ -1319,7 +1319,7 @@ int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer,
 	spin_lock(&imp->imp_lock);
 	imp->imp_no_pinger_recover = !val;
 	spin_unlock(&imp->imp_lock);
-	LPROCFS_CLIMP_EXIT(obd);
+	up_read(&obd->u.cli.cl_sem);
 
 	return count;
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
index 09ddeef6ba48..c5d7ff5cbd73 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pers.c b/drivers/staging/lustre/lustre/ptlrpc/pers.c
index 2a2a9fb6549c..ec3af109a1d7 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pers.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pers.c
@@ -26,6 +26,8 @@
 /*
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2014, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index 5c719f175657..fb2d5236a971 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
index ab6c4580f91c..8f67e0562b73 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -73,7 +73,6 @@ void ptlrpc_request_handle_notconn(struct ptlrpc_request *);
 void lustre_assert_wire_constants(void);
 int ptlrpc_import_in_recovery(struct obd_import *imp);
 int ptlrpc_set_import_discon(struct obd_import *imp, __u32 conn_cnt);
-void ptlrpc_handle_failed_import(struct obd_import *imp);
 int ptlrpc_replay_next(struct obd_import *imp, int *inflight);
 void ptlrpc_initiate_recovery(struct obd_import *imp);
 
@@ -88,8 +87,6 @@ void ptlrpc_ldebugfs_register_service(struct dentry *debugfs_entry,
 				      struct ptlrpc_service *svc);
 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount);
-void ptlrpc_lprocfs_do_request_stat(struct ptlrpc_request *req,
-				     long q_usec, long work_usec);
 
 /* NRS */
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
index 9deeb244166f..c4f1d0f5deb2 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
@@ -160,7 +160,7 @@ static void __exit ptlrpc_exit(void)
 	ptlrpc_connection_fini();
 }
 
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
 MODULE_DESCRIPTION("Lustre Request Processor and Lock Management");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("1.0.0");
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index ce036a1ac466..60fb0ced7137 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -422,6 +422,7 @@ static int ptlrpcd(void *arg)
 	complete(&pc->pc_starting);
 
 	/*
+
 	 * This mainloop strongly resembles ptlrpc_set_wait() except that our
 	 * set never completes.  ptlrpcd_check() calls ptlrpc_check_set() when
 	 * there are requests in the set. New requests come in on the set's
diff --git a/drivers/staging/lustre/lustre/ptlrpc/recover.c b/drivers/staging/lustre/lustre/ptlrpc/recover.c
index 7b1d72947330..db6626cab6f2 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/recover.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/recover.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index cd8a9987f7ac..6152c1b766c3 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
index 7ff948fe1424..4b0b81c115ee 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -83,8 +83,7 @@ int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
 		return 0;
 	}
 
-	strncpy(buf, str, sizeof(buf));
-	buf[sizeof(buf) - 1] = '\0';
+	strlcpy(buf, str, sizeof(buf));
 
 	bulk = strchr(buf, '-');
 	if (bulk)
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
index f448b4567af0..905a41451ca3 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index f45898f17793..8598300a61d1 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2010, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
index 40f720ca3b14..61d9ca93c53a 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c
index 93bffbac8fc7..8fdf0ac4f287 100644
--- a/drivers/staging/media/bcm2048/radio-bcm2048.c
+++ b/drivers/staging/media/bcm2048/radio-bcm2048.c
@@ -179,14 +179,13 @@
 #define BCM2048_DEFAULT_TIMEOUT		1500
 #define BCM2048_AUTO_SEARCH_TIMEOUT	3000
 
-
 #define BCM2048_FREQDEV_UNIT		10000
 #define BCM2048_FREQV4L2_MULTI		625
 #define dev_to_v4l2(f)	((f * BCM2048_FREQDEV_UNIT) / BCM2048_FREQV4L2_MULTI)
 #define v4l2_to_dev(f)	((f * BCM2048_FREQV4L2_MULTI) / BCM2048_FREQDEV_UNIT)
 
-#define msb(x)                  ((u8)((u16) x >> 8))
-#define lsb(x)                  ((u8)((u16) x &  0x00FF))
+#define msb(x)                  ((u8)((u16)x >> 8))
+#define lsb(x)                  ((u8)((u16)x &  0x00FF))
 #define compose_u16(msb, lsb)	(((u16)msb << 8) | lsb)
 
 #define BCM2048_DEFAULT_POWERING_DELAY	20
@@ -348,7 +347,7 @@ static struct region_info region_configs[] = {
  *	I2C Interface read / write
  */
 static int bcm2048_send_command(struct bcm2048_device *bdev, unsigned int reg,
-					unsigned int value)
+				unsigned int value)
 {
 	struct i2c_client *client = bdev->client;
 	u8 data[2];
@@ -370,7 +369,7 @@ static int bcm2048_send_command(struct bcm2048_device *bdev, unsigned int reg,
 }
 
 static int bcm2048_recv_command(struct bcm2048_device *bdev, unsigned int reg,
-			u8 *value)
+				u8 *value)
 {
 	struct i2c_client *client = bdev->client;
 
@@ -385,7 +384,7 @@ static int bcm2048_recv_command(struct bcm2048_device *bdev, unsigned int reg,
 }
 
 static int bcm2048_recv_duples(struct bcm2048_device *bdev, unsigned int reg,
-			u8 *value, u8 duples)
+			       u8 *value, u8 duples)
 {
 	struct i2c_client *client = bdev->client;
 	struct i2c_adapter *adap = client->adapter;
@@ -436,7 +435,7 @@ static int bcm2048_set_power_state(struct bcm2048_device *bdev, u8 power)
 	 */
 	if (power)
 		err = bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_SYSTEM,
-					bdev->cache_fm_rds_system);
+					   bdev->cache_fm_rds_system);
 	msleep(BCM2048_DEFAULT_POWERING_DELAY);
 
 	if (!power)
@@ -475,17 +474,17 @@ static int bcm2048_set_rds_no_lock(struct bcm2048_device *bdev, u8 rds_on)
 		bdev->rds_state = BCM2048_RDS_ON;
 		flags =	BCM2048_RDS_FLAG_FIFO_WLINE;
 		err = bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_MASK1,
-						flags);
+					   flags);
 	} else {
 		flags =	0;
 		bdev->rds_state = 0;
 		err = bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_MASK1,
-						flags);
+					   flags);
 		memset(&bdev->rds_info, 0, sizeof(bdev->rds_info));
 	}
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_SYSTEM,
-					bdev->cache_fm_rds_system);
+				   bdev->cache_fm_rds_system);
 
 	return err;
 }
@@ -545,14 +544,14 @@ static int bcm2048_set_fm_automatic_stereo_mono(struct bcm2048_device *bdev,
 		bdev->cache_fm_ctrl |= BCM2048_STEREO_MONO_AUTO_SELECT;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_CTRL,
-					bdev->cache_fm_ctrl);
+				   bdev->cache_fm_ctrl);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
 }
 
 static int bcm2048_set_fm_hi_lo_injection(struct bcm2048_device *bdev,
-						u8 hi_lo)
+					  u8 hi_lo)
 {
 	int err;
 
@@ -564,7 +563,7 @@ static int bcm2048_set_fm_hi_lo_injection(struct bcm2048_device *bdev,
 		bdev->cache_fm_ctrl |= BCM2048_HI_LO_INJECTION;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_CTRL,
-					bdev->cache_fm_ctrl);
+				   bdev->cache_fm_ctrl);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -592,7 +591,7 @@ static int bcm2048_set_fm_frequency(struct bcm2048_device *bdev, u32 frequency)
 	int err;
 
 	if (frequency < bdev->region_info.bottom_frequency ||
-		frequency > bdev->region_info.top_frequency)
+	    frequency > bdev->region_info.top_frequency)
 		return -EDOM;
 
 	frequency -= BCM2048_FREQUENCY_BASE;
@@ -601,7 +600,7 @@ static int bcm2048_set_fm_frequency(struct bcm2048_device *bdev, u32 frequency)
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_FREQ0, lsb(frequency));
 	err |= bcm2048_send_command(bdev, BCM2048_I2C_FM_FREQ1,
-					msb(frequency));
+				    msb(frequency));
 
 	if (!err)
 		bdev->frequency = frequency;
@@ -632,12 +631,12 @@ static int bcm2048_get_fm_frequency(struct bcm2048_device *bdev)
 }
 
 static int bcm2048_set_fm_af_frequency(struct bcm2048_device *bdev,
-						u32 frequency)
+				       u32 frequency)
 {
 	int err;
 
 	if (frequency < bdev->region_info.bottom_frequency ||
-		frequency > bdev->region_info.top_frequency)
+	    frequency > bdev->region_info.top_frequency)
 		return -EDOM;
 
 	frequency -= BCM2048_FREQUENCY_BASE;
@@ -645,9 +644,9 @@ static int bcm2048_set_fm_af_frequency(struct bcm2048_device *bdev,
 	mutex_lock(&bdev->mutex);
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_AF_FREQ0,
-					lsb(frequency));
+				   lsb(frequency));
 	err |= bcm2048_send_command(bdev, BCM2048_I2C_FM_AF_FREQ1,
-					msb(frequency));
+				    msb(frequency));
 	if (!err)
 		bdev->frequency = frequency;
 
@@ -692,7 +691,7 @@ static int bcm2048_set_fm_deemphasis(struct bcm2048_device *bdev, int d)
 	bdev->cache_fm_audio_ctrl0 |= deemphasis;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_AUDIO_CTRL0,
-		bdev->cache_fm_audio_ctrl0);
+				   bdev->cache_fm_audio_ctrl0);
 
 	if (!err)
 		bdev->region_info.deemphasis = d;
@@ -740,7 +739,7 @@ static int bcm2048_set_region(struct bcm2048_device *bdev, u8 region)
 		bdev->cache_fm_ctrl &= ~BCM2048_BAND_SELECT;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_CTRL,
-					bdev->cache_fm_ctrl);
+				   bdev->cache_fm_ctrl);
 	if (err) {
 		mutex_unlock(&bdev->mutex);
 		goto done;
@@ -748,7 +747,7 @@ static int bcm2048_set_region(struct bcm2048_device *bdev, u8 region)
 	mutex_unlock(&bdev->mutex);
 
 	if (bdev->frequency < region_configs[region].bottom_frequency ||
-		bdev->frequency > region_configs[region].top_frequency)
+	    bdev->frequency > region_configs[region].top_frequency)
 		new_frequency = region_configs[region].bottom_frequency;
 
 	if (new_frequency > 0) {
@@ -759,7 +758,7 @@ static int bcm2048_set_region(struct bcm2048_device *bdev, u8 region)
 	}
 
 	err = bcm2048_set_fm_deemphasis(bdev,
-			region_configs[region].deemphasis);
+					region_configs[region].deemphasis);
 
 done:
 	return err;
@@ -786,10 +785,10 @@ static int bcm2048_set_mute(struct bcm2048_device *bdev, u16 mute)
 
 	if (mute)
 		bdev->cache_fm_audio_ctrl0 |= (BCM2048_RF_MUTE |
-						BCM2048_MANUAL_MUTE);
+					       BCM2048_MANUAL_MUTE);
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_AUDIO_CTRL0,
-					bdev->cache_fm_audio_ctrl0);
+				   bdev->cache_fm_audio_ctrl0);
 
 	if (!err)
 		bdev->mute_state = mute;
@@ -807,7 +806,7 @@ static int bcm2048_get_mute(struct bcm2048_device *bdev)
 
 	if (bdev->power_state) {
 		err = bcm2048_recv_command(bdev, BCM2048_I2C_FM_AUDIO_CTRL0,
-						&value);
+					   &value);
 		if (!err)
 			err = value & (BCM2048_RF_MUTE | BCM2048_MANUAL_MUTE);
 	} else {
@@ -826,11 +825,11 @@ static int bcm2048_set_audio_route(struct bcm2048_device *bdev, u8 route)
 
 	route &= (BCM2048_AUDIO_ROUTE_DAC | BCM2048_AUDIO_ROUTE_I2S);
 	bdev->cache_fm_audio_ctrl0 &= ~(BCM2048_AUDIO_ROUTE_DAC |
-		BCM2048_AUDIO_ROUTE_I2S);
+					BCM2048_AUDIO_ROUTE_I2S);
 	bdev->cache_fm_audio_ctrl0 |= route;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_AUDIO_CTRL0,
-					bdev->cache_fm_audio_ctrl0);
+				   bdev->cache_fm_audio_ctrl0);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -849,7 +848,7 @@ static int bcm2048_get_audio_route(struct bcm2048_device *bdev)
 
 	if (!err)
 		return value & (BCM2048_AUDIO_ROUTE_DAC |
-			BCM2048_AUDIO_ROUTE_I2S);
+				BCM2048_AUDIO_ROUTE_I2S);
 
 	return err;
 }
@@ -865,7 +864,7 @@ static int bcm2048_set_dac_output(struct bcm2048_device *bdev, u8 channels)
 	bdev->cache_fm_audio_ctrl0 |= channels;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_AUDIO_CTRL0,
-					bdev->cache_fm_audio_ctrl0);
+				   bdev->cache_fm_audio_ctrl0);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -884,13 +883,13 @@ static int bcm2048_get_dac_output(struct bcm2048_device *bdev)
 
 	if (!err)
 		return value & (BCM2048_DAC_OUTPUT_LEFT |
-			BCM2048_DAC_OUTPUT_RIGHT);
+				BCM2048_DAC_OUTPUT_RIGHT);
 
 	return err;
 }
 
 static int bcm2048_set_fm_search_rssi_threshold(struct bcm2048_device *bdev,
-							u8 threshold)
+						u8 threshold)
 {
 	int err;
 
@@ -901,7 +900,7 @@ static int bcm2048_set_fm_search_rssi_threshold(struct bcm2048_device *bdev,
 	bdev->cache_fm_search_ctrl0 |= threshold;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_SEARCH_CTRL0,
-					bdev->cache_fm_search_ctrl0);
+				   bdev->cache_fm_search_ctrl0);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -937,7 +936,7 @@ static int bcm2048_set_fm_search_mode_direction(struct bcm2048_device *bdev,
 		bdev->cache_fm_search_ctrl0 |= BCM2048_SEARCH_DIRECTION;
 
 	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_SEARCH_CTRL0,
-					bdev->cache_fm_search_ctrl0);
+				   bdev->cache_fm_search_ctrl0);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -961,7 +960,7 @@ static int bcm2048_get_fm_search_mode_direction(struct bcm2048_device *bdev)
 }
 
 static int bcm2048_set_fm_search_tune_mode(struct bcm2048_device *bdev,
-						u8 mode)
+					   u8 mode)
 {
 	int err, timeout, restart_rds = 0;
 	u8 value, flags;
@@ -1024,7 +1023,7 @@ static int bcm2048_get_fm_search_tune_mode(struct bcm2048_device *bdev)
 	mutex_lock(&bdev->mutex);
 
 	err = bcm2048_recv_command(bdev, BCM2048_I2C_FM_SEARCH_TUNE_MODE,
-					&value);
+				   &value);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1040,10 +1039,10 @@ static int bcm2048_set_rds_b_block_mask(struct bcm2048_device *bdev, u16 mask)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MASK0, lsb(mask));
-	err |= bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MASK1, msb(mask));
+	err = bcm2048_send_command(bdev, BCM2048_I2C_RDS_BLKB_MASK0,
+				   lsb(mask));
+	err |= bcm2048_send_command(bdev, BCM2048_I2C_RDS_BLKB_MASK1,
+				    msb(mask));
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1056,10 +1055,8 @@ static int bcm2048_get_rds_b_block_mask(struct bcm2048_device *bdev)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MASK0, &lsb);
-	err |= bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MASK1, &msb);
+	err = bcm2048_recv_command(bdev, BCM2048_I2C_RDS_BLKB_MASK0, &lsb);
+	err |= bcm2048_recv_command(bdev, BCM2048_I2C_RDS_BLKB_MASK1, &msb);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1070,16 +1067,16 @@ static int bcm2048_get_rds_b_block_mask(struct bcm2048_device *bdev)
 }
 
 static int bcm2048_set_rds_b_block_match(struct bcm2048_device *bdev,
-						u16 match)
+					 u16 match)
 {
 	int err;
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MATCH0, lsb(match));
-	err |= bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MATCH1, msb(match));
+	err = bcm2048_send_command(bdev, BCM2048_I2C_RDS_BLKB_MATCH0,
+				   lsb(match));
+	err |= bcm2048_send_command(bdev, BCM2048_I2C_RDS_BLKB_MATCH1,
+				    msb(match));
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1092,10 +1089,8 @@ static int bcm2048_get_rds_b_block_match(struct bcm2048_device *bdev)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MATCH0, &lsb);
-	err |= bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_BLKB_MATCH1, &msb);
+	err = bcm2048_recv_command(bdev, BCM2048_I2C_RDS_BLKB_MATCH0, &lsb);
+	err |= bcm2048_recv_command(bdev, BCM2048_I2C_RDS_BLKB_MATCH1, &msb);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1111,10 +1106,8 @@ static int bcm2048_set_rds_pi_mask(struct bcm2048_device *bdev, u16 mask)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_PI_MASK0, lsb(mask));
-	err |= bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_PI_MASK1, msb(mask));
+	err = bcm2048_send_command(bdev, BCM2048_I2C_RDS_PI_MASK0, lsb(mask));
+	err |= bcm2048_send_command(bdev, BCM2048_I2C_RDS_PI_MASK1, msb(mask));
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1127,10 +1120,8 @@ static int bcm2048_get_rds_pi_mask(struct bcm2048_device *bdev)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_PI_MASK0, &lsb);
-	err |= bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_PI_MASK1, &msb);
+	err = bcm2048_recv_command(bdev, BCM2048_I2C_RDS_PI_MASK0, &lsb);
+	err |= bcm2048_recv_command(bdev, BCM2048_I2C_RDS_PI_MASK1, &msb);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1146,10 +1137,10 @@ static int bcm2048_set_rds_pi_match(struct bcm2048_device *bdev, u16 match)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_PI_MATCH0, lsb(match));
-	err |= bcm2048_send_command(bdev,
-			BCM2048_I2C_RDS_PI_MATCH1, msb(match));
+	err = bcm2048_send_command(bdev, BCM2048_I2C_RDS_PI_MATCH0,
+				   lsb(match));
+	err |= bcm2048_send_command(bdev, BCM2048_I2C_RDS_PI_MATCH1,
+				    msb(match));
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1162,10 +1153,8 @@ static int bcm2048_get_rds_pi_match(struct bcm2048_device *bdev)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_PI_MATCH0, &lsb);
-	err |= bcm2048_recv_command(bdev,
-			BCM2048_I2C_RDS_PI_MATCH1, &msb);
+	err = bcm2048_recv_command(bdev, BCM2048_I2C_RDS_PI_MATCH0, &lsb);
+	err |= bcm2048_recv_command(bdev, BCM2048_I2C_RDS_PI_MATCH1, &msb);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1181,10 +1170,8 @@ static int bcm2048_set_fm_rds_mask(struct bcm2048_device *bdev, u16 mask)
 
 	mutex_lock(&bdev->mutex);
 
-	err = bcm2048_send_command(bdev,
-			BCM2048_I2C_FM_RDS_MASK0, lsb(mask));
-	err |= bcm2048_send_command(bdev,
-			BCM2048_I2C_FM_RDS_MASK1, msb(mask));
+	err = bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_MASK0, lsb(mask));
+	err |= bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_MASK1, msb(mask));
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1245,13 +1232,13 @@ static int bcm2048_set_fm_best_tune_mode(struct bcm2048_device *bdev, u8 mode)
 
 	/* Perform read as the manual indicates */
 	err = bcm2048_recv_command(bdev, BCM2048_I2C_FM_BEST_TUNE_MODE,
-					&value);
+				   &value);
 	value &= ~BCM2048_BEST_TUNE_MODE;
 
 	if (mode)
 		value |= BCM2048_BEST_TUNE_MODE;
 	err |= bcm2048_send_command(bdev, BCM2048_I2C_FM_BEST_TUNE_MODE,
-					value);
+				    value);
 
 	mutex_unlock(&bdev->mutex);
 	return err;
@@ -1265,7 +1252,7 @@ static int bcm2048_get_fm_best_tune_mode(struct bcm2048_device *bdev)
 	mutex_lock(&bdev->mutex);
 
 	err = bcm2048_recv_command(bdev, BCM2048_I2C_FM_BEST_TUNE_MODE,
-					&value);
+				   &value);
 
 	mutex_unlock(&bdev->mutex);
 
@@ -1352,7 +1339,7 @@ static int bcm2048_checkrev(struct bcm2048_device *bdev)
 
 	if (!err) {
 		dev_info(&bdev->client->dev, "BCM2048 Version 0x%x\n",
-			version);
+			 version);
 		return version;
 	}
 
@@ -1362,7 +1349,7 @@ static int bcm2048_checkrev(struct bcm2048_device *bdev)
 static int bcm2048_get_rds_rt(struct bcm2048_device *bdev, char *data)
 {
 	int err = 0, i, j = 0, ce = 0, cr = 0;
-	char data_buffer[BCM2048_MAX_RDS_RT+1];
+	char data_buffer[BCM2048_MAX_RDS_RT + 1];
 
 	mutex_lock(&bdev->mutex);
 
@@ -1412,7 +1399,7 @@ unlock:
 static int bcm2048_get_rds_ps(struct bcm2048_device *bdev, char *data)
 {
 	int err = 0, i, j = 0;
-	char data_buffer[BCM2048_MAX_RDS_PS+1];
+	char data_buffer[BCM2048_MAX_RDS_PS + 1];
 
 	mutex_lock(&bdev->mutex);
 
@@ -1448,12 +1435,10 @@ static void bcm2048_parse_rds_pi(struct bcm2048_device *bdev)
 	u16 pi;
 
 	for (i = 0; i < bdev->fifo_size; i += BCM2048_RDS_FIFO_DUPLE_SIZE) {
-
 		/* Block A match, only data without crc errors taken */
 		if (bdev->rds_info.radio_text[i] == BCM2048_RDS_BLOCK_A) {
-
-			pi = (bdev->rds_info.radio_text[i+1] << 8) +
-				bdev->rds_info.radio_text[i+2];
+			pi = (bdev->rds_info.radio_text[i + 1] << 8) +
+				bdev->rds_info.radio_text[i + 2];
 
 			if (!bdev->rds_info.rds_pi) {
 				bdev->rds_info.rds_pi = pi;
@@ -1478,20 +1463,21 @@ static int bcm2048_rds_block_crc(struct bcm2048_device *bdev, int i)
 }
 
 static void bcm2048_parse_rds_rt_block(struct bcm2048_device *bdev, int i,
-					int index, int crc)
+				       int index, int crc)
 {
 	/* Good data will overwrite poor data */
 	if (crc) {
 		if (!bdev->rds_info.rds_rt[index])
 			bdev->rds_info.rds_rt[index] =
-				bdev->rds_info.radio_text[i+1];
-		if (!bdev->rds_info.rds_rt[index+1])
-			bdev->rds_info.rds_rt[index+1] =
-				bdev->rds_info.radio_text[i+2];
+				bdev->rds_info.radio_text[i + 1];
+		if (!bdev->rds_info.rds_rt[index + 1])
+			bdev->rds_info.rds_rt[index + 1] =
+				bdev->rds_info.radio_text[i + 2];
 	} else {
-		bdev->rds_info.rds_rt[index] = bdev->rds_info.radio_text[i+1];
-		bdev->rds_info.rds_rt[index+1] =
-			bdev->rds_info.radio_text[i+2];
+		bdev->rds_info.rds_rt[index] =
+			bdev->rds_info.radio_text[i + 1];
+		bdev->rds_info.rds_rt[index + 1] =
+			bdev->rds_info.radio_text[i + 2];
 	}
 }
 
@@ -1505,18 +1491,17 @@ static int bcm2048_parse_rt_match_b(struct bcm2048_device *bdev, int i)
 		return -EIO;
 
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
-		BCM2048_RDS_BLOCK_B) {
-
-		rt_id = bdev->rds_info.radio_text[i+1] &
+	    BCM2048_RDS_BLOCK_B) {
+		rt_id = bdev->rds_info.radio_text[i + 1] &
 			BCM2048_RDS_BLOCK_MASK;
-		rt_group_b = bdev->rds_info.radio_text[i+1] &
+		rt_group_b = bdev->rds_info.radio_text[i + 1] &
 			BCM2048_RDS_GROUP_AB_MASK;
-		rt_ab = bdev->rds_info.radio_text[i+2] &
+		rt_ab = bdev->rds_info.radio_text[i + 2] &
 				BCM2048_RDS_RT_AB_MASK;
 
 		if (rt_group_b != bdev->rds_info.rds_rt_group_b) {
 			memset(bdev->rds_info.rds_rt, 0,
-				sizeof(bdev->rds_info.rds_rt));
+			       sizeof(bdev->rds_info.rds_rt));
 			bdev->rds_info.rds_rt_group_b = rt_group_b;
 		}
 
@@ -1524,11 +1509,11 @@ static int bcm2048_parse_rt_match_b(struct bcm2048_device *bdev, int i)
 			/* A to B or (vice versa), means: clear screen */
 			if (rt_ab != bdev->rds_info.rds_rt_ab) {
 				memset(bdev->rds_info.rds_rt, 0,
-					sizeof(bdev->rds_info.rds_rt));
+				       sizeof(bdev->rds_info.rds_rt));
 				bdev->rds_info.rds_rt_ab = rt_ab;
 			}
 
-			index = bdev->rds_info.radio_text[i+2] &
+			index = bdev->rds_info.radio_text[i + 2] &
 					BCM2048_RDS_RT_INDEX;
 
 			if (bdev->rds_info.rds_rt_group_b)
@@ -1544,7 +1529,7 @@ static int bcm2048_parse_rt_match_b(struct bcm2048_device *bdev, int i)
 }
 
 static int bcm2048_parse_rt_match_c(struct bcm2048_device *bdev, int i,
-					int index)
+				    int index)
 {
 	int crc;
 
@@ -1567,7 +1552,7 @@ static int bcm2048_parse_rt_match_c(struct bcm2048_device *bdev, int i,
 }
 
 static void bcm2048_parse_rt_match_d(struct bcm2048_device *bdev, int i,
-					int index)
+				     int index)
 {
 	int crc;
 
@@ -1579,8 +1564,8 @@ static void bcm2048_parse_rt_match_d(struct bcm2048_device *bdev, int i,
 	BUG_ON((index+4) >= BCM2048_MAX_RDS_RT);
 
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
-		BCM2048_RDS_BLOCK_D)
-		bcm2048_parse_rds_rt_block(bdev, i, index+2, crc);
+	    BCM2048_RDS_BLOCK_D)
+		bcm2048_parse_rds_rt_block(bdev, i, index + 2, crc);
 }
 
 static void bcm2048_parse_rds_rt(struct bcm2048_device *bdev)
@@ -1588,7 +1573,6 @@ static void bcm2048_parse_rds_rt(struct bcm2048_device *bdev)
 	int i, index = 0, crc, match_b = 0, match_c = 0, match_d = 0;
 
 	for (i = 0; i < bdev->fifo_size; i += BCM2048_RDS_FIFO_DUPLE_SIZE) {
-
 		if (match_b) {
 			match_b = 0;
 			index = bcm2048_parse_rt_match_b(bdev, i);
@@ -1607,40 +1591,41 @@ static void bcm2048_parse_rds_rt(struct bcm2048_device *bdev)
 		}
 
 		/* Skip erroneous blocks due to messed up A block altogether */
-		if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK)
-			== BCM2048_RDS_BLOCK_A) {
+		if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
+		    BCM2048_RDS_BLOCK_A) {
 			crc = bcm2048_rds_block_crc(bdev, i);
 			if (crc == BCM2048_RDS_CRC_UNRECOVARABLE)
 				continue;
-			/* Syncronize to a good RDS PI */
-			if (((bdev->rds_info.radio_text[i+1] << 8) +
-				bdev->rds_info.radio_text[i+2]) ==
-				bdev->rds_info.rds_pi)
-					match_b = 1;
+			/* Synchronize to a good RDS PI */
+			if (((bdev->rds_info.radio_text[i + 1] << 8) +
+			    bdev->rds_info.radio_text[i + 2]) ==
+			    bdev->rds_info.rds_pi)
+				match_b = 1;
 		}
 	}
 }
 
 static void bcm2048_parse_rds_ps_block(struct bcm2048_device *bdev, int i,
-					int index, int crc)
+				       int index, int crc)
 {
 	/* Good data will overwrite poor data */
 	if (crc) {
 		if (!bdev->rds_info.rds_ps[index])
 			bdev->rds_info.rds_ps[index] =
-				bdev->rds_info.radio_text[i+1];
-		if (!bdev->rds_info.rds_ps[index+1])
-			bdev->rds_info.rds_ps[index+1] =
-				bdev->rds_info.radio_text[i+2];
+				bdev->rds_info.radio_text[i + 1];
+		if (!bdev->rds_info.rds_ps[index + 1])
+			bdev->rds_info.rds_ps[index + 1] =
+				bdev->rds_info.radio_text[i + 2];
 	} else {
-		bdev->rds_info.rds_ps[index] = bdev->rds_info.radio_text[i+1];
-		bdev->rds_info.rds_ps[index+1] =
-			bdev->rds_info.radio_text[i+2];
+		bdev->rds_info.rds_ps[index] =
+			bdev->rds_info.radio_text[i + 1];
+		bdev->rds_info.rds_ps[index + 1] =
+			bdev->rds_info.radio_text[i + 2];
 	}
 }
 
 static int bcm2048_parse_ps_match_c(struct bcm2048_device *bdev, int i,
-					int index)
+				    int index)
 {
 	int crc;
 
@@ -1650,14 +1635,14 @@ static int bcm2048_parse_ps_match_c(struct bcm2048_device *bdev, int i,
 		return 0;
 
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
-		BCM2048_RDS_BLOCK_C)
+	    BCM2048_RDS_BLOCK_C)
 		return 1;
 
 	return 0;
 }
 
 static void bcm2048_parse_ps_match_d(struct bcm2048_device *bdev, int i,
-					int index)
+				     int index)
 {
 	int crc;
 
@@ -1667,7 +1652,7 @@ static void bcm2048_parse_ps_match_d(struct bcm2048_device *bdev, int i,
 		return;
 
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
-		BCM2048_RDS_BLOCK_D)
+	    BCM2048_RDS_BLOCK_D)
 		bcm2048_parse_rds_ps_block(bdev, i, index, crc);
 }
 
@@ -1682,10 +1667,10 @@ static int bcm2048_parse_ps_match_b(struct bcm2048_device *bdev, int i)
 
 	/* Block B Radio PS match */
 	if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
-		BCM2048_RDS_BLOCK_B) {
-		ps_id = bdev->rds_info.radio_text[i+1] &
+	    BCM2048_RDS_BLOCK_B) {
+		ps_id = bdev->rds_info.radio_text[i + 1] &
 			BCM2048_RDS_BLOCK_MASK;
-		ps_group = bdev->rds_info.radio_text[i+1] &
+		ps_group = bdev->rds_info.radio_text[i + 1] &
 			BCM2048_RDS_GROUP_AB_MASK;
 
 		/*
@@ -1709,7 +1694,7 @@ static int bcm2048_parse_ps_match_b(struct bcm2048_device *bdev, int i)
 		}
 
 		if (ps_id == BCM2048_RDS_PS) {
-			index = bdev->rds_info.radio_text[i+2] &
+			index = bdev->rds_info.radio_text[i + 2] &
 				BCM2048_RDS_PS_INDEX;
 			index <<= 1;
 			return index;
@@ -1724,7 +1709,6 @@ static void bcm2048_parse_rds_ps(struct bcm2048_device *bdev)
 	int i, index = 0, crc, match_b = 0, match_c = 0, match_d = 0;
 
 	for (i = 0; i < bdev->fifo_size; i += BCM2048_RDS_FIFO_DUPLE_SIZE) {
-
 		if (match_b) {
 			match_b = 0;
 			index = bcm2048_parse_ps_match_b(bdev, i);
@@ -1743,16 +1727,16 @@ static void bcm2048_parse_rds_ps(struct bcm2048_device *bdev)
 		}
 
 		/* Skip erroneous blocks due to messed up A block altogether */
-		if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK)
-			== BCM2048_RDS_BLOCK_A) {
+		if ((bdev->rds_info.radio_text[i] & BCM2048_RDS_BLOCK_MASK) ==
+		    BCM2048_RDS_BLOCK_A) {
 			crc = bcm2048_rds_block_crc(bdev, i);
 			if (crc == BCM2048_RDS_CRC_UNRECOVARABLE)
 				continue;
-			/* Syncronize to a good RDS PI */
-			if (((bdev->rds_info.radio_text[i+1] << 8) +
-				bdev->rds_info.radio_text[i+2]) ==
-				bdev->rds_info.rds_pi)
-					match_b = 1;
+			/* Synchronize to a good RDS PI */
+			if (((bdev->rds_info.radio_text[i + 1] << 8) +
+			    bdev->rds_info.radio_text[i + 2]) ==
+			    bdev->rds_info.rds_pi)
+				match_b = 1;
 		}
 	}
 }
@@ -1764,7 +1748,7 @@ static void bcm2048_rds_fifo_receive(struct bcm2048_device *bdev)
 	mutex_lock(&bdev->mutex);
 
 	err = bcm2048_recv_duples(bdev, BCM2048_I2C_RDS_DATA,
-				bdev->rds_info.radio_text, bdev->fifo_size);
+				  bdev->rds_info.radio_text, bdev->fifo_size);
 	if (err != 2) {
 		dev_err(&bdev->client->dev, "RDS Read problem\n");
 		mutex_unlock(&bdev->mutex);
@@ -1801,8 +1785,8 @@ static int bcm2048_get_rds_data(struct bcm2048_device *bdev, char *data)
 	}
 
 	for (i = 0; i < bdev->rds_info.text_len; i++) {
-		p += sprintf(data_buffer+p, "%x ",
-			bdev->rds_info.radio_text[i]);
+		p += sprintf(data_buffer + p, "%x ",
+			     bdev->rds_info.radio_text[i]);
 	}
 
 	memcpy(data, data_buffer, p);
@@ -1829,7 +1813,7 @@ static int bcm2048_init(struct bcm2048_device *bdev)
 		goto exit;
 
 	err = bcm2048_set_dac_output(bdev, BCM2048_DAC_OUTPUT_LEFT |
-		BCM2048_DAC_OUTPUT_RIGHT);
+				     BCM2048_DAC_OUTPUT_RIGHT);
 
 exit:
 	return err;
@@ -1921,7 +1905,6 @@ static void bcm2048_work(struct work_struct *work)
 
 	if (flag_lsb & (BCM2048_FM_FLAG_SEARCH_TUNE_FINISHED |
 			BCM2048_FM_FLAG_SEARCH_TUNE_FAIL)) {
-
 		if (flag_lsb & BCM2048_FM_FLAG_SEARCH_TUNE_FAIL)
 			bdev->scan_state = BCM2048_SCAN_FAIL;
 		else
@@ -1935,7 +1918,7 @@ static void bcm2048_work(struct work_struct *work)
 		if (bdev->rds_state) {
 			flags =	BCM2048_RDS_FLAG_FIFO_WLINE;
 			bcm2048_send_command(bdev, BCM2048_I2C_FM_RDS_MASK1,
-						flags);
+					     flags);
 		}
 		bdev->rds_data_available = 1;
 		bdev->rd_index = 0; /* new data, new start */
@@ -2074,7 +2057,7 @@ property_str_read(rds_rt, (BCM2048_MAX_RDS_RT + 1))
 property_str_read(rds_ps, (BCM2048_MAX_RDS_PS + 1))
 
 property_read(fm_rds_flags, unsigned int, "%u")
-property_str_read(rds_data, BCM2048_MAX_RDS_RADIO_TEXT*5)
+property_str_read(rds_data, BCM2048_MAX_RDS_RADIO_TEXT * 5)
 
 property_read(region_bottom_frequency, unsigned int, "%u")
 property_read(region_top_frequency, unsigned int, "%u")
@@ -2084,70 +2067,70 @@ DEFINE_SYSFS_PROPERTY(region, unsigned, int, "%u", 0)
 
 static struct device_attribute attrs[] = {
 	__ATTR(power_state, S_IRUGO | S_IWUSR, bcm2048_power_state_read,
-		bcm2048_power_state_write),
+	       bcm2048_power_state_write),
 	__ATTR(mute, S_IRUGO | S_IWUSR, bcm2048_mute_read,
-		bcm2048_mute_write),
+	       bcm2048_mute_write),
 	__ATTR(audio_route, S_IRUGO | S_IWUSR, bcm2048_audio_route_read,
-		bcm2048_audio_route_write),
+	       bcm2048_audio_route_write),
 	__ATTR(dac_output, S_IRUGO | S_IWUSR, bcm2048_dac_output_read,
-		bcm2048_dac_output_write),
+	       bcm2048_dac_output_write),
 	__ATTR(fm_hi_lo_injection, S_IRUGO | S_IWUSR,
-		bcm2048_fm_hi_lo_injection_read,
-		bcm2048_fm_hi_lo_injection_write),
+	       bcm2048_fm_hi_lo_injection_read,
+	       bcm2048_fm_hi_lo_injection_write),
 	__ATTR(fm_frequency, S_IRUGO | S_IWUSR, bcm2048_fm_frequency_read,
-		bcm2048_fm_frequency_write),
+	       bcm2048_fm_frequency_write),
 	__ATTR(fm_af_frequency, S_IRUGO | S_IWUSR,
-		bcm2048_fm_af_frequency_read,
-		bcm2048_fm_af_frequency_write),
+	       bcm2048_fm_af_frequency_read,
+	       bcm2048_fm_af_frequency_write),
 	__ATTR(fm_deemphasis, S_IRUGO | S_IWUSR, bcm2048_fm_deemphasis_read,
-		bcm2048_fm_deemphasis_write),
+	       bcm2048_fm_deemphasis_write),
 	__ATTR(fm_rds_mask, S_IRUGO | S_IWUSR, bcm2048_fm_rds_mask_read,
-		bcm2048_fm_rds_mask_write),
+	       bcm2048_fm_rds_mask_write),
 	__ATTR(fm_best_tune_mode, S_IRUGO | S_IWUSR,
-		bcm2048_fm_best_tune_mode_read,
-		bcm2048_fm_best_tune_mode_write),
+	       bcm2048_fm_best_tune_mode_read,
+	       bcm2048_fm_best_tune_mode_write),
 	__ATTR(fm_search_rssi_threshold, S_IRUGO | S_IWUSR,
-		bcm2048_fm_search_rssi_threshold_read,
-		bcm2048_fm_search_rssi_threshold_write),
+	       bcm2048_fm_search_rssi_threshold_read,
+	       bcm2048_fm_search_rssi_threshold_write),
 	__ATTR(fm_search_mode_direction, S_IRUGO | S_IWUSR,
-		bcm2048_fm_search_mode_direction_read,
-		bcm2048_fm_search_mode_direction_write),
+	       bcm2048_fm_search_mode_direction_read,
+	       bcm2048_fm_search_mode_direction_write),
 	__ATTR(fm_search_tune_mode, S_IRUGO | S_IWUSR,
-		bcm2048_fm_search_tune_mode_read,
-		bcm2048_fm_search_tune_mode_write),
+	       bcm2048_fm_search_tune_mode_read,
+	       bcm2048_fm_search_tune_mode_write),
 	__ATTR(rds, S_IRUGO | S_IWUSR, bcm2048_rds_read,
-		bcm2048_rds_write),
+	       bcm2048_rds_write),
 	__ATTR(rds_b_block_mask, S_IRUGO | S_IWUSR,
-		bcm2048_rds_b_block_mask_read,
-		bcm2048_rds_b_block_mask_write),
+	       bcm2048_rds_b_block_mask_read,
+	       bcm2048_rds_b_block_mask_write),
 	__ATTR(rds_b_block_match, S_IRUGO | S_IWUSR,
-		bcm2048_rds_b_block_match_read,
-		bcm2048_rds_b_block_match_write),
+	       bcm2048_rds_b_block_match_read,
+	       bcm2048_rds_b_block_match_write),
 	__ATTR(rds_pi_mask, S_IRUGO | S_IWUSR, bcm2048_rds_pi_mask_read,
-		bcm2048_rds_pi_mask_write),
+	       bcm2048_rds_pi_mask_write),
 	__ATTR(rds_pi_match, S_IRUGO | S_IWUSR, bcm2048_rds_pi_match_read,
-		bcm2048_rds_pi_match_write),
+	       bcm2048_rds_pi_match_write),
 	__ATTR(rds_wline, S_IRUGO | S_IWUSR, bcm2048_rds_wline_read,
-		bcm2048_rds_wline_write),
+	       bcm2048_rds_wline_write),
 	__ATTR(rds_pi, S_IRUGO, bcm2048_rds_pi_read, NULL),
 	__ATTR(rds_rt, S_IRUGO, bcm2048_rds_rt_read, NULL),
 	__ATTR(rds_ps, S_IRUGO, bcm2048_rds_ps_read, NULL),
 	__ATTR(fm_rds_flags, S_IRUGO, bcm2048_fm_rds_flags_read, NULL),
 	__ATTR(region_bottom_frequency, S_IRUGO,
-		bcm2048_region_bottom_frequency_read, NULL),
+	       bcm2048_region_bottom_frequency_read, NULL),
 	__ATTR(region_top_frequency, S_IRUGO,
-		bcm2048_region_top_frequency_read, NULL),
+	       bcm2048_region_top_frequency_read, NULL),
 	__ATTR(fm_carrier_error, S_IRUGO,
-		bcm2048_fm_carrier_error_read, NULL),
+	       bcm2048_fm_carrier_error_read, NULL),
 	__ATTR(fm_rssi, S_IRUGO,
-		bcm2048_fm_rssi_read, NULL),
+	       bcm2048_fm_rssi_read, NULL),
 	__ATTR(region, S_IRUGO | S_IWUSR, bcm2048_region_read,
-		bcm2048_region_write),
+	       bcm2048_region_write),
 	__ATTR(rds_data, S_IRUGO, bcm2048_rds_data_read, NULL),
 };
 
 static int bcm2048_sysfs_unregister_properties(struct bcm2048_device *bdev,
-						int size)
+					       int size)
 {
 	int i;
 
@@ -2165,7 +2148,7 @@ static int bcm2048_sysfs_register_properties(struct bcm2048_device *bdev)
 	for (i = 0; i < ARRAY_SIZE(attrs); i++) {
 		if (device_create_file(&bdev->client->dev, &attrs[i]) != 0) {
 			dev_err(&bdev->client->dev,
-					"could not register sysfs entry\n");
+				"could not register sysfs entry\n");
 			err = -EBUSY;
 			bcm2048_sysfs_unregister_properties(bdev, i);
 			break;
@@ -2175,7 +2158,6 @@ static int bcm2048_sysfs_register_properties(struct bcm2048_device *bdev)
 	return err;
 }
 
-
 static int bcm2048_fops_open(struct file *file)
 {
 	struct bcm2048_device *bdev = video_drvdata(file);
@@ -2197,7 +2179,7 @@ static int bcm2048_fops_release(struct file *file)
 }
 
 static unsigned int bcm2048_fops_poll(struct file *file,
-		struct poll_table_struct *pts)
+				      struct poll_table_struct *pts)
 {
 	struct bcm2048_device *bdev = video_drvdata(file);
 	int retval = 0;
@@ -2211,7 +2193,7 @@ static unsigned int bcm2048_fops_poll(struct file *file,
 }
 
 static ssize_t bcm2048_fops_read(struct file *file, char __user *buf,
-	size_t count, loff_t *ppos)
+				 size_t count, loff_t *ppos)
 {
 	struct bcm2048_device *bdev = video_drvdata(file);
 	int i;
@@ -2229,7 +2211,7 @@ static ssize_t bcm2048_fops_read(struct file *file, char __user *buf,
 		}
 		/* interruptible_sleep_on(&bdev->read_queue); */
 		if (wait_event_interruptible(bdev->read_queue,
-			bdev->rds_data_available) < 0) {
+		    bdev->rds_data_available) < 0) {
 			retval = -EINTR;
 			goto done;
 		}
@@ -2245,13 +2227,16 @@ static ssize_t bcm2048_fops_read(struct file *file, char __user *buf,
 	while (i < count) {
 		unsigned char tmpbuf[3];
 
-		tmpbuf[i] = bdev->rds_info.radio_text[bdev->rd_index+i+2];
-		tmpbuf[i+1] = bdev->rds_info.radio_text[bdev->rd_index+i+1];
-		tmpbuf[i+2] = (bdev->rds_info.radio_text[bdev->rd_index + i] & 0xf0) >> 4;
-		if ((bdev->rds_info.radio_text[bdev->rd_index+i] &
-			BCM2048_RDS_CRC_MASK) == BCM2048_RDS_CRC_UNRECOVARABLE)
-			tmpbuf[i+2] |= 0x80;
-		if (copy_to_user(buf+i, tmpbuf, 3)) {
+		tmpbuf[i] = bdev->rds_info.radio_text[bdev->rd_index + i + 2];
+		tmpbuf[i + 1] =
+			bdev->rds_info.radio_text[bdev->rd_index + i + 1];
+		tmpbuf[i + 2] =
+			(bdev->rds_info.radio_text[bdev->rd_index + i] &
+			 0xf0) >> 4;
+		if ((bdev->rds_info.radio_text[bdev->rd_index + i] &
+		    BCM2048_RDS_CRC_MASK) == BCM2048_RDS_CRC_UNRECOVARABLE)
+			tmpbuf[i + 2] |= 0x80;
+		if (copy_to_user(buf + i, tmpbuf, 3)) {
 			retval = -EFAULT;
 			break;
 		}
@@ -2319,7 +2304,7 @@ static struct v4l2_queryctrl bcm2048_v4l2_queryctrl[] = {
 };
 
 static int bcm2048_vidioc_querycap(struct file *file, void *priv,
-		struct v4l2_capability *capability)
+				   struct v4l2_capability *capability)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 
@@ -2337,7 +2322,7 @@ static int bcm2048_vidioc_querycap(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_g_input(struct file *filp, void *priv,
-		unsigned int *i)
+				  unsigned int *i)
 {
 	*i = 0;
 
@@ -2345,7 +2330,7 @@ static int bcm2048_vidioc_g_input(struct file *filp, void *priv,
 }
 
 static int bcm2048_vidioc_s_input(struct file *filp, void *priv,
-					unsigned int i)
+				  unsigned int i)
 {
 	if (i)
 		return -EINVAL;
@@ -2354,7 +2339,7 @@ static int bcm2048_vidioc_s_input(struct file *filp, void *priv,
 }
 
 static int bcm2048_vidioc_queryctrl(struct file *file, void *priv,
-		struct v4l2_queryctrl *qc)
+				    struct v4l2_queryctrl *qc)
 {
 	int i;
 
@@ -2369,7 +2354,7 @@ static int bcm2048_vidioc_queryctrl(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_g_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
+				 struct v4l2_control *ctrl)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	int err = 0;
@@ -2389,7 +2374,7 @@ static int bcm2048_vidioc_g_ctrl(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_s_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
+				 struct v4l2_control *ctrl)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	int err = 0;
@@ -2417,7 +2402,7 @@ static int bcm2048_vidioc_s_ctrl(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_g_audio(struct file *file, void *priv,
-		struct v4l2_audio *audio)
+				  struct v4l2_audio *audio)
 {
 	if (audio->index > 1)
 		return -EINVAL;
@@ -2429,7 +2414,7 @@ static int bcm2048_vidioc_g_audio(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_s_audio(struct file *file, void *priv,
-		const struct v4l2_audio *audio)
+				  const struct v4l2_audio *audio)
 {
 	if (audio->index != 0)
 		return -EINVAL;
@@ -2438,7 +2423,7 @@ static int bcm2048_vidioc_s_audio(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_g_tuner(struct file *file, void *priv,
-		struct v4l2_tuner *tuner)
+				  struct v4l2_tuner *tuner)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	s8 f_error;
@@ -2493,7 +2478,7 @@ static int bcm2048_vidioc_g_tuner(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_s_tuner(struct file *file, void *priv,
-		const struct v4l2_tuner *tuner)
+				  const struct v4l2_tuner *tuner)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 
@@ -2507,7 +2492,7 @@ static int bcm2048_vidioc_s_tuner(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_g_frequency(struct file *file, void *priv,
-		struct v4l2_frequency *freq)
+				      struct v4l2_frequency *freq)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	int err = 0;
@@ -2528,7 +2513,7 @@ static int bcm2048_vidioc_g_frequency(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_s_frequency(struct file *file, void *priv,
-		const struct v4l2_frequency *freq)
+				      const struct v4l2_frequency *freq)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	int err;
@@ -2546,7 +2531,7 @@ static int bcm2048_vidioc_s_frequency(struct file *file, void *priv,
 }
 
 static int bcm2048_vidioc_s_hw_freq_seek(struct file *file, void *priv,
-					const struct v4l2_hw_freq_seek *seek)
+					 const struct v4l2_hw_freq_seek *seek)
 {
 	struct bcm2048_device *bdev = video_get_drvdata(video_devdata(file));
 	int err;
@@ -2559,7 +2544,7 @@ static int bcm2048_vidioc_s_hw_freq_seek(struct file *file, void *priv,
 
 	err = bcm2048_set_fm_search_mode_direction(bdev, seek->seek_upward);
 	err |= bcm2048_set_fm_search_tune_mode(bdev,
-			BCM2048_FM_AUTO_SEARCH_MODE);
+					       BCM2048_FM_AUTO_SEARCH_MODE);
 
 	return err;
 }
@@ -2594,7 +2579,7 @@ static struct video_device bcm2048_viddev_template = {
  *	I2C driver interface
  */
 static int bcm2048_i2c_driver_probe(struct i2c_client *client,
-					const struct i2c_device_id *id)
+				    const struct i2c_device_id *id)
 {
 	struct bcm2048_device *bdev;
 	int err;
@@ -2613,8 +2598,8 @@ static int bcm2048_i2c_driver_probe(struct i2c_client *client,
 
 	if (client->irq) {
 		err = request_irq(client->irq,
-			bcm2048_handler, IRQF_TRIGGER_FALLING,
-			client->name, bdev);
+				  bcm2048_handler, IRQF_TRIGGER_FALLING,
+				  client->name, bdev);
 		if (err < 0) {
 			dev_err(&client->dev, "Could not request IRQ\n");
 			goto free_bdev;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
index c492914768ea..ac78ed2f8bcc 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
@@ -1712,8 +1712,11 @@ ipipe_link_setup(struct media_entity *entity, const struct media_pad *local,
 	struct vpfe_device *vpfe_dev = to_vpfe_device(ipipe);
 	u16 ipipeif_sink = vpfe_dev->vpfe_ipipeif.input;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case IPIPE_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	if (!is_media_entity_v4l2_subdev(remote->entity))
+		return -EINVAL;
+
+	switch (local->index) {
+	case IPIPE_PAD_SINK:
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipe->input = IPIPE_INPUT_NONE;
 			break;
@@ -1726,7 +1729,7 @@ ipipe_link_setup(struct media_entity *entity, const struct media_pad *local,
 			ipipe->input = IPIPE_INPUT_CCDC;
 		break;
 
-	case IPIPE_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case IPIPE_PAD_SOURCE:
 		/* out to RESIZER */
 		if (flags & MEDIA_LNK_FL_ENABLED)
 			ipipe->output = IPIPE_OUTPUT_RESIZER;
@@ -1840,7 +1843,7 @@ vpfe_ipipe_init(struct vpfe_ipipe_device *ipipe, struct platform_device *pdev)
 	v4l2_ctrl_handler_setup(&ipipe->ctrls);
 	sd->ctrl_handler = &ipipe->ctrls;
 
-	return media_entity_init(me, IPIPE_PADS_NUM, pads, 0);
+	return media_entity_pads_init(me, IPIPE_PADS_NUM, pads);
 }
 
 /*
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
index 8b230541b1d1..633d6456fdce 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c
@@ -885,9 +885,14 @@ ipipeif_link_setup(struct media_entity *entity, const struct media_pad *local,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct vpfe_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
 	struct vpfe_device *vpfe = to_vpfe_device(ipipeif);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case IPIPEIF_PAD_SINK | MEDIA_ENT_T_DEVNODE:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case IPIPEIF_PAD_SINK:
 		/* Single shot mode */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipeif->input = IPIPEIF_INPUT_NONE;
@@ -896,7 +901,7 @@ ipipeif_link_setup(struct media_entity *entity, const struct media_pad *local,
 		ipipeif->input = IPIPEIF_INPUT_MEMORY;
 		break;
 
-	case IPIPEIF_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	case IPIPEIF_PAD_SINK | 2 << 16:
 		/* read from isif */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipeif->input = IPIPEIF_INPUT_NONE;
@@ -908,7 +913,7 @@ ipipeif_link_setup(struct media_entity *entity, const struct media_pad *local,
 		ipipeif->input = IPIPEIF_INPUT_ISIF;
 		break;
 
-	case IPIPEIF_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case IPIPEIF_PAD_SOURCE | 2 << 16:
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipeif->output = IPIPEIF_OUTPUT_NONE;
 			break;
@@ -971,7 +976,7 @@ vpfe_ipipeif_register_entities(struct vpfe_ipipeif_device *ipipeif,
 	ipipeif->video_in.vpfe_dev = vpfe_dev;
 
 	flags = 0;
-	ret = media_entity_create_link(&ipipeif->video_in.video_dev.entity, 0,
+	ret = media_create_pad_link(&ipipeif->video_in.video_dev.entity, 0,
 					&ipipeif->subdev.entity, 0, flags);
 	if (ret < 0)
 		goto fail;
@@ -1026,7 +1031,7 @@ int vpfe_ipipeif_init(struct vpfe_ipipeif_device *ipipeif,
 	ipipeif->output = IPIPEIF_OUTPUT_NONE;
 	me->ops = &ipipeif_media_ops;
 
-	ret = media_entity_init(me, IPIPEIF_NUM_PADS, pads, 0);
+	ret = media_entity_pads_init(me, IPIPEIF_NUM_PADS, pads);
 	if (ret)
 		goto fail;
 
diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c b/drivers/staging/media/davinci_vpfe/dm365_isif.c
index 80907b464412..99057892d88d 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_isif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c
@@ -1707,9 +1707,14 @@ isif_link_setup(struct media_entity *entity, const struct media_pad *local,
 {
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct vpfe_isif_device *isif = v4l2_get_subdevdata(sd);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case ISIF_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case ISIF_PAD_SINK | 2 << 16:
 		/* read from decoder/sensor */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			isif->input = ISIF_INPUT_NONE;
@@ -1720,7 +1725,7 @@ isif_link_setup(struct media_entity *entity, const struct media_pad *local,
 		isif->input = ISIF_INPUT_PARALLEL;
 		break;
 
-	case ISIF_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+	case ISIF_PAD_SOURCE:
 		/* write to memory */
 		if (flags & MEDIA_LNK_FL_ENABLED)
 			isif->output = ISIF_OUTPUT_MEMORY;
@@ -1728,7 +1733,7 @@ isif_link_setup(struct media_entity *entity, const struct media_pad *local,
 			isif->output = ISIF_OUTPUT_NONE;
 		break;
 
-	case ISIF_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case ISIF_PAD_SOURCE | 2 << 16:
 		if (flags & MEDIA_LNK_FL_ENABLED)
 			isif->output = ISIF_OUTPUT_IPIPEIF;
 		else
@@ -1817,7 +1822,7 @@ int vpfe_isif_register_entities(struct vpfe_isif_device *isif,
 	isif->video_out.vpfe_dev = vpfe_dev;
 	flags = 0;
 	/* connect isif to video node */
-	ret = media_entity_create_link(&isif->subdev.entity, 1,
+	ret = media_create_pad_link(&isif->subdev.entity, 1,
 				       &isif->video_out.video_dev.entity,
 				       0, flags);
 	if (ret < 0)
@@ -2052,7 +2057,7 @@ int vpfe_isif_init(struct vpfe_isif_device *isif, struct platform_device *pdev)
 	isif->input = ISIF_INPUT_NONE;
 	isif->output = ISIF_OUTPUT_NONE;
 	me->ops = &isif_media_ops;
-	status = media_entity_init(me, ISIF_PADS_NUM, pads, 0);
+	status = media_entity_pads_init(me, ISIF_PADS_NUM, pads);
 	if (status)
 		goto isif_fail;
 	isif->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
index d892fee3f52f..a91395ce91e1 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
@@ -1648,10 +1648,15 @@ static int resizer_link_setup(struct media_entity *entity,
 	struct vpfe_device *vpfe_dev = to_vpfe_device(resizer);
 	u16 ipipeif_source = vpfe_dev->vpfe_ipipeif.output;
 	u16 ipipe_source = vpfe_dev->vpfe_ipipe.output;
+	unsigned int index = local->index;
+
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
 
 	if (&resizer->crop_resizer.subdev == sd) {
-		switch (local->index | media_entity_type(remote->entity)) {
-		case RESIZER_CROP_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+		switch (index) {
+		case RESIZER_CROP_PAD_SINK | 2 << 16:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->crop_resizer.input =
 					RESIZER_CROP_INPUT_NONE;
@@ -1671,7 +1676,7 @@ static int resizer_link_setup(struct media_entity *entity,
 				return -EINVAL;
 			break;
 
-		case RESIZER_CROP_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+		case RESIZER_CROP_PAD_SOURCE | 2 << 16:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->crop_resizer.output =
 				RESIZER_CROP_OUTPUT_NONE;
@@ -1683,7 +1688,7 @@ static int resizer_link_setup(struct media_entity *entity,
 			resizer->crop_resizer.output = RESIZER_A;
 			break;
 
-		case RESIZER_CROP_PAD_SOURCE2 | MEDIA_ENT_T_V4L2_SUBDEV:
+		case RESIZER_CROP_PAD_SOURCE2 | 2 << 16:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->crop_resizer.output2 =
 					RESIZER_CROP_OUTPUT_NONE;
@@ -1699,8 +1704,8 @@ static int resizer_link_setup(struct media_entity *entity,
 			return -EINVAL;
 		}
 	} else if (&resizer->resizer_a.subdev == sd) {
-		switch (local->index | media_entity_type(remote->entity)) {
-		case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+		switch (index) {
+		case RESIZER_PAD_SINK | 2 << 16:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->resizer_a.input = RESIZER_INPUT_NONE;
 				break;
@@ -1710,7 +1715,7 @@ static int resizer_link_setup(struct media_entity *entity,
 			resizer->resizer_a.input = RESIZER_INPUT_CROP_RESIZER;
 			break;
 
-		case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+		case RESIZER_PAD_SOURCE:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->resizer_a.output = RESIZER_OUTPUT_NONE;
 				break;
@@ -1724,8 +1729,8 @@ static int resizer_link_setup(struct media_entity *entity,
 			return -EINVAL;
 		}
 	} else if (&resizer->resizer_b.subdev == sd) {
-		switch (local->index | media_entity_type(remote->entity)) {
-		case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+		switch (index) {
+		case RESIZER_PAD_SINK | 2 << 16:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->resizer_b.input = RESIZER_INPUT_NONE;
 				break;
@@ -1735,7 +1740,7 @@ static int resizer_link_setup(struct media_entity *entity,
 			resizer->resizer_b.input = RESIZER_INPUT_CROP_RESIZER;
 			break;
 
-		case RESIZER_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+		case RESIZER_PAD_SOURCE:
 			if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 				resizer->resizer_b.output = RESIZER_OUTPUT_NONE;
 				break;
@@ -1826,27 +1831,27 @@ int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer,
 	resizer->resizer_b.video_out.vpfe_dev = vpfe_dev;
 
 	/* create link between Resizer Crop----> Resizer A*/
-	ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 1,
+	ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 1,
 				&resizer->resizer_a.subdev.entity,
 				0, flags);
 	if (ret < 0)
 		goto out_create_link;
 
 	/* create link between Resizer Crop----> Resizer B*/
-	ret = media_entity_create_link(&resizer->crop_resizer.subdev.entity, 2,
+	ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 2,
 				&resizer->resizer_b.subdev.entity,
 				0, flags);
 	if (ret < 0)
 		goto out_create_link;
 
 	/* create link between Resizer A ----> video out */
-	ret = media_entity_create_link(&resizer->resizer_a.subdev.entity, 1,
+	ret = media_create_pad_link(&resizer->resizer_a.subdev.entity, 1,
 		&resizer->resizer_a.video_out.video_dev.entity, 0, flags);
 	if (ret < 0)
 		goto out_create_link;
 
 	/* create link between Resizer B ----> video out */
-	ret = media_entity_create_link(&resizer->resizer_b.subdev.entity, 1,
+	ret = media_create_pad_link(&resizer->resizer_b.subdev.entity, 1,
 		&resizer->resizer_b.video_out.video_dev.entity, 0, flags);
 	if (ret < 0)
 		goto out_create_link;
@@ -1910,7 +1915,7 @@ int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz,
 	vpfe_rsz->crop_resizer.output2 = RESIZER_CROP_OUTPUT_NONE;
 	vpfe_rsz->crop_resizer.rsz_device = vpfe_rsz;
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESIZER_CROP_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, RESIZER_CROP_PADS_NUM, pads);
 	if (ret)
 		return ret;
 
@@ -1932,7 +1937,7 @@ int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz,
 	vpfe_rsz->resizer_a.output = RESIZER_OUTPUT_NONE;
 	vpfe_rsz->resizer_a.rsz_device = vpfe_rsz;
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, RESIZER_PADS_NUM, pads);
 	if (ret)
 		return ret;
 
@@ -1954,7 +1959,7 @@ int vpfe_resizer_init(struct vpfe_resizer_device *vpfe_rsz,
 	vpfe_rsz->resizer_b.output = RESIZER_OUTPUT_NONE;
 	vpfe_rsz->resizer_b.rsz_device = vpfe_rsz;
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, RESIZER_PADS_NUM, pads);
 	if (ret)
 		return ret;
 
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
index 69b678ca40c0..ec46f366dd17 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c
@@ -445,32 +445,32 @@ static int vpfe_register_entities(struct vpfe_device *vpfe_dev)
 		/* if entity has no pads (ex: amplifier),
 		   cant establish link */
 		if (vpfe_dev->sd[i]->entity.num_pads) {
-			ret = media_entity_create_link(&vpfe_dev->sd[i]->entity,
+			ret = media_create_pad_link(&vpfe_dev->sd[i]->entity,
 				0, &vpfe_dev->vpfe_isif.subdev.entity,
 				0, flags);
 			if (ret < 0)
 				goto out_resizer_register;
 		}
 
-	ret = media_entity_create_link(&vpfe_dev->vpfe_isif.subdev.entity, 1,
+	ret = media_create_pad_link(&vpfe_dev->vpfe_isif.subdev.entity, 1,
 				       &vpfe_dev->vpfe_ipipeif.subdev.entity,
 				       0, flags);
 	if (ret < 0)
 		goto out_resizer_register;
 
-	ret = media_entity_create_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1,
+	ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1,
 				       &vpfe_dev->vpfe_ipipe.subdev.entity,
 				       0, flags);
 	if (ret < 0)
 		goto out_resizer_register;
 
-	ret = media_entity_create_link(&vpfe_dev->vpfe_ipipe.subdev.entity,
+	ret = media_create_pad_link(&vpfe_dev->vpfe_ipipe.subdev.entity,
 			1, &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity,
 			0, flags);
 	if (ret < 0)
 		goto out_resizer_register;
 
-	ret = media_entity_create_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1,
+	ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1,
 			&vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity,
 			0, flags);
 	if (ret < 0)
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index adb2bc8811ab..3ec7e65a3ffa 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -88,7 +88,7 @@ vpfe_video_remote_subdev(struct vpfe_video_device *video, u32 *pad)
 {
 	struct media_pad *remote = media_entity_remote_pad(&video->pad);
 
-	if (remote == NULL || remote->entity->type != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
 		return NULL;
 	if (pad)
 		*pad = remote->index;
@@ -127,13 +127,14 @@ __vpfe_video_get_format(struct vpfe_video_device *video,
 }
 
 /* make a note of pipeline details */
-static void vpfe_prepare_pipeline(struct vpfe_video_device *video)
+static int vpfe_prepare_pipeline(struct vpfe_video_device *video)
 {
+	struct media_entity_graph graph;
 	struct media_entity *entity = &video->video_dev.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 	struct vpfe_pipeline *pipe = &video->pipe;
 	struct vpfe_video_device *far_end = NULL;
-	struct media_entity_graph graph;
+	int ret;
 
 	pipe->input_num = 0;
 	pipe->output_num = 0;
@@ -144,11 +145,16 @@ static void vpfe_prepare_pipeline(struct vpfe_video_device *video)
 		pipe->outputs[pipe->output_num++] = video;
 
 	mutex_lock(&mdev->graph_mutex);
+	ret = media_entity_graph_walk_init(&graph, entity->graph_obj.mdev);
+	if (ret) {
+		mutex_unlock(&video->lock);
+		return -ENOMEM;
+	}
 	media_entity_graph_walk_start(&graph, entity);
 	while ((entity = media_entity_graph_walk_next(&graph))) {
 		if (entity == &video->video_dev.entity)
 			continue;
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+		if (!is_media_entity_v4l2_io(entity))
 			continue;
 		far_end = to_vpfe_video(media_entity_to_video_device(entity));
 		if (far_end->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
@@ -156,7 +162,10 @@ static void vpfe_prepare_pipeline(struct vpfe_video_device *video)
 		else
 			pipe->outputs[pipe->output_num++] = far_end;
 	}
+	media_entity_graph_walk_cleanup(&graph);
 	mutex_unlock(&mdev->graph_mutex);
+
+	return 0;
 }
 
 /* update pipe state selected by user */
@@ -165,7 +174,9 @@ static int vpfe_update_pipe_state(struct vpfe_video_device *video)
 	struct vpfe_pipeline *pipe = &video->pipe;
 	int ret;
 
-	vpfe_prepare_pipeline(video);
+	ret = vpfe_prepare_pipeline(video);
+	if (ret)
+		return ret;
 
 	/* Find out if there is any input video
 	  if yes, it is single shot.
@@ -243,8 +254,7 @@ static int vpfe_video_validate_pipeline(struct vpfe_pipeline *pipe)
 
 		/* Retrieve the source format */
 		pad = media_entity_remote_pad(pad);
-		if (pad == NULL ||
-			pad->entity->type != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		subdev = media_entity_to_v4l2_subdev(pad->entity);
@@ -277,29 +287,35 @@ static int vpfe_video_validate_pipeline(struct vpfe_pipeline *pipe)
  */
 static int vpfe_pipeline_enable(struct vpfe_pipeline *pipe)
 {
-	struct media_entity_graph graph;
 	struct media_entity *entity;
 	struct v4l2_subdev *subdev;
 	struct media_device *mdev;
-	int ret = 0;
+	int ret;
 
 	if (pipe->state == VPFE_PIPELINE_STREAM_CONTINUOUS)
 		entity = vpfe_get_input_entity(pipe->outputs[0]);
 	else
 		entity = &pipe->inputs[0]->video_dev.entity;
 
-	mdev = entity->parent;
+	mdev = entity->graph_obj.mdev;
 	mutex_lock(&mdev->graph_mutex);
-	media_entity_graph_walk_start(&graph, entity);
-	while ((entity = media_entity_graph_walk_next(&graph))) {
+	ret = media_entity_graph_walk_init(&pipe->graph,
+					   entity->graph_obj.mdev);
+	if (ret)
+		goto out;
+	media_entity_graph_walk_start(&pipe->graph, entity);
+	while ((entity = media_entity_graph_walk_next(&pipe->graph))) {
 
-		if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+		if (!is_media_entity_v4l2_subdev(entity))
 			continue;
 		subdev = media_entity_to_v4l2_subdev(entity);
 		ret = v4l2_subdev_call(subdev, video, s_stream, 1);
 		if (ret < 0 && ret != -ENOIOCTLCMD)
 			break;
 	}
+out:
+	if (ret)
+		media_entity_graph_walk_cleanup(&pipe->graph);
 	mutex_unlock(&mdev->graph_mutex);
 	return ret;
 }
@@ -317,7 +333,6 @@ static int vpfe_pipeline_enable(struct vpfe_pipeline *pipe)
  */
 static int vpfe_pipeline_disable(struct vpfe_pipeline *pipe)
 {
-	struct media_entity_graph graph;
 	struct media_entity *entity;
 	struct v4l2_subdev *subdev;
 	struct media_device *mdev;
@@ -328,13 +343,13 @@ static int vpfe_pipeline_disable(struct vpfe_pipeline *pipe)
 	else
 		entity = &pipe->inputs[0]->video_dev.entity;
 
-	mdev = entity->parent;
+	mdev = entity->graph_obj.mdev;
 	mutex_lock(&mdev->graph_mutex);
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(&pipe->graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
+	while ((entity = media_entity_graph_walk_next(&pipe->graph))) {
 
-		if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+		if (!is_media_entity_v4l2_subdev(entity))
 			continue;
 		subdev = media_entity_to_v4l2_subdev(entity);
 		ret = v4l2_subdev_call(subdev, video, s_stream, 0);
@@ -343,6 +358,7 @@ static int vpfe_pipeline_disable(struct vpfe_pipeline *pipe)
 	}
 	mutex_unlock(&mdev->graph_mutex);
 
+	media_entity_graph_walk_cleanup(&pipe->graph);
 	return ret ? -ETIMEDOUT : 0;
 }
 
@@ -1600,8 +1616,8 @@ int vpfe_video_init(struct vpfe_video_device *video, const char *name)
 	spin_lock_init(&video->irqlock);
 	spin_lock_init(&video->dma_queue_lock);
 	mutex_init(&video->lock);
-	ret = media_entity_init(&video->video_dev.entity,
-				1, &video->pad, 0);
+	ret = media_entity_pads_init(&video->video_dev.entity,
+				1, &video->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.h b/drivers/staging/media/davinci_vpfe/vpfe_video.h
index 673cefe3ef61..653334d537d3 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.h
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.h
@@ -52,6 +52,7 @@ enum vpfe_video_state {
 struct vpfe_pipeline {
 	/* media pipeline */
 	struct media_pipeline		*pipe;
+	struct media_entity_graph	graph;
 	/* state of the pipeline, continuous,
 	 * single-shot or stopped
 	 */
diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index e27a988540a6..30b473cfb020 100644
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -389,15 +389,15 @@ static irqreturn_t iss_isr(int irq, void *_iss)
  *
  * Return the total number of users of all video device nodes in the pipeline.
  */
-static int iss_pipeline_pm_use_count(struct media_entity *entity)
+static int iss_pipeline_pm_use_count(struct media_entity *entity,
+				     struct media_entity_graph *graph)
 {
-	struct media_entity_graph graph;
 	int use = 0;
 
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(graph, entity);
 
-	while ((entity = media_entity_graph_walk_next(&graph))) {
-		if (media_entity_type(entity) == MEDIA_ENT_T_DEVNODE)
+	while ((entity = media_entity_graph_walk_next(graph))) {
+		if (is_media_entity_v4l2_io(entity))
 			use += entity->use_count;
 	}
 
@@ -419,7 +419,7 @@ static int iss_pipeline_pm_power_one(struct media_entity *entity, int change)
 {
 	struct v4l2_subdev *subdev;
 
-	subdev = media_entity_type(entity) == MEDIA_ENT_T_V4L2_SUBDEV
+	subdev = is_media_entity_v4l2_subdev(entity)
 	       ? media_entity_to_v4l2_subdev(entity) : NULL;
 
 	if (entity->use_count == 0 && change > 0 && subdev) {
@@ -449,29 +449,29 @@ static int iss_pipeline_pm_power_one(struct media_entity *entity, int change)
  *
  * Return 0 on success or a negative error code on failure.
  */
-static int iss_pipeline_pm_power(struct media_entity *entity, int change)
+static int iss_pipeline_pm_power(struct media_entity *entity, int change,
+				 struct media_entity_graph *graph)
 {
-	struct media_entity_graph graph;
 	struct media_entity *first = entity;
 	int ret = 0;
 
 	if (!change)
 		return 0;
 
-	media_entity_graph_walk_start(&graph, entity);
+	media_entity_graph_walk_start(graph, entity);
 
-	while (!ret && (entity = media_entity_graph_walk_next(&graph)))
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+	while (!ret && (entity = media_entity_graph_walk_next(graph)))
+		if (is_media_entity_v4l2_subdev(entity))
 			ret = iss_pipeline_pm_power_one(entity, change);
 
 	if (!ret)
 		return 0;
 
-	media_entity_graph_walk_start(&graph, first);
+	media_entity_graph_walk_start(graph, first);
 
-	while ((first = media_entity_graph_walk_next(&graph)) &&
+	while ((first = media_entity_graph_walk_next(graph)) &&
 	       first != entity)
-		if (media_entity_type(first) != MEDIA_ENT_T_DEVNODE)
+		if (is_media_entity_v4l2_subdev(first))
 			iss_pipeline_pm_power_one(first, -change);
 
 	return ret;
@@ -489,23 +489,24 @@ static int iss_pipeline_pm_power(struct media_entity *entity, int change)
  * off is assumed to never fail. No failure can occur when the use parameter is
  * set to 0.
  */
-int omap4iss_pipeline_pm_use(struct media_entity *entity, int use)
+int omap4iss_pipeline_pm_use(struct media_entity *entity, int use,
+			     struct media_entity_graph *graph)
 {
 	int change = use ? 1 : -1;
 	int ret;
 
-	mutex_lock(&entity->parent->graph_mutex);
+	mutex_lock(&entity->graph_obj.mdev->graph_mutex);
 
 	/* Apply use count to node. */
 	entity->use_count += change;
 	WARN_ON(entity->use_count < 0);
 
 	/* Apply power change to connected non-nodes. */
-	ret = iss_pipeline_pm_power(entity, change);
+	ret = iss_pipeline_pm_power(entity, change, graph);
 	if (ret < 0)
 		entity->use_count -= change;
 
-	mutex_unlock(&entity->parent->graph_mutex);
+	mutex_unlock(&entity->graph_obj.mdev->graph_mutex);
 
 	return ret;
 }
@@ -526,34 +527,48 @@ int omap4iss_pipeline_pm_use(struct media_entity *entity, int use)
 static int iss_pipeline_link_notify(struct media_link *link, u32 flags,
 				    unsigned int notification)
 {
+	struct media_entity_graph *graph =
+		&container_of(link->graph_obj.mdev, struct iss_device,
+			      media_dev)->pm_count_graph;
 	struct media_entity *source = link->source->entity;
 	struct media_entity *sink = link->sink->entity;
-	int source_use = iss_pipeline_pm_use_count(source);
-	int sink_use = iss_pipeline_pm_use_count(sink);
+	int source_use;
+	int sink_use;
 	int ret;
 
+	if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) {
+		ret = media_entity_graph_walk_init(graph,
+						   link->graph_obj.mdev);
+		if (ret)
+			return ret;
+	}
+
+	source_use = iss_pipeline_pm_use_count(source, graph);
+	sink_use = iss_pipeline_pm_use_count(sink, graph);
+
 	if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
-	    !(link->flags & MEDIA_LNK_FL_ENABLED)) {
+	    !(flags & MEDIA_LNK_FL_ENABLED)) {
 		/* Powering off entities is assumed to never fail. */
-		iss_pipeline_pm_power(source, -sink_use);
-		iss_pipeline_pm_power(sink, -source_use);
+		iss_pipeline_pm_power(source, -sink_use, graph);
+		iss_pipeline_pm_power(sink, -source_use, graph);
 		return 0;
 	}
 
-	if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
+	if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH &&
 	    (flags & MEDIA_LNK_FL_ENABLED)) {
-		ret = iss_pipeline_pm_power(source, sink_use);
+		ret = iss_pipeline_pm_power(source, sink_use, graph);
 		if (ret < 0)
 			return ret;
 
-		ret = iss_pipeline_pm_power(sink, source_use);
+		ret = iss_pipeline_pm_power(sink, source_use, graph);
 		if (ret < 0)
-			iss_pipeline_pm_power(source, -sink_use);
-
-		return ret;
+			iss_pipeline_pm_power(source, -sink_use, graph);
 	}
 
-	return 0;
+	if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH)
+		media_entity_graph_walk_cleanup(graph);
+
+	return ret;
 }
 
 /* -----------------------------------------------------------------------------
@@ -590,8 +605,7 @@ static int iss_pipeline_disable(struct iss_pipeline *pipe,
 			break;
 
 		pad = media_entity_remote_pad(pad);
-		if (!pad ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = pad->entity;
@@ -607,7 +621,7 @@ static int iss_pipeline_disable(struct iss_pipeline *pipe,
 			 * crashed. Mark it as such, the ISS will be reset when
 			 * applications will release it.
 			 */
-			iss->crashed |= 1U << subdev->entity.id;
+			media_entity_enum_set(&iss->crashed, &subdev->entity);
 			failure = -ETIMEDOUT;
 		}
 	}
@@ -642,7 +656,7 @@ static int iss_pipeline_enable(struct iss_pipeline *pipe,
 	 * pipeline won't start anyway (those entities would then likely fail to
 	 * stop, making the problem worse).
 	 */
-	if (pipe->entities & iss->crashed)
+	if (media_entity_enum_intersects(&pipe->ent_enum, &iss->crashed))
 		return -EIO;
 
 	spin_lock_irqsave(&pipe->lock, flags);
@@ -658,8 +672,7 @@ static int iss_pipeline_enable(struct iss_pipeline *pipe,
 			break;
 
 		pad = media_entity_remote_pad(pad);
-		if (!pad ||
-		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
 			break;
 
 		entity = pad->entity;
@@ -763,7 +776,8 @@ static int iss_reset(struct iss_device *iss)
 		return -ETIMEDOUT;
 	}
 
-	iss->crashed = 0;
+	media_entity_enum_zero(&iss->crashed);
+
 	return 0;
 }
 
@@ -1092,7 +1106,7 @@ void omap4iss_put(struct iss_device *iss)
 		 * be worth investigating whether resetting the ISP only can't
 		 * fix the problem in some cases.
 		 */
-		if (iss->crashed)
+		if (!media_entity_enum_empty(&iss->crashed))
 			iss_reset(iss);
 		iss_disable_clocks(iss);
 	}
@@ -1259,7 +1273,7 @@ static int iss_register_entities(struct iss_device *iss)
 			goto done;
 		}
 
-		ret = media_entity_create_link(&sensor->entity, 0, input, pad,
+		ret = media_create_pad_link(&sensor->entity, 0, input, pad,
 					       flags);
 		if (ret < 0)
 			goto done;
@@ -1274,6 +1288,68 @@ done:
 	return ret;
 }
 
+/*
+ * iss_create_links() - Pads links creation for the subdevices
+ * @iss : Pointer to ISS device
+ *
+ * return negative error code or zero on success
+ */
+static int iss_create_links(struct iss_device *iss)
+{
+	int ret;
+
+	ret = omap4iss_csi2_create_links(iss);
+	if (ret < 0) {
+		dev_err(iss->dev, "CSI2 pads links creation failed\n");
+		return ret;
+	}
+
+	ret = omap4iss_ipipeif_create_links(iss);
+	if (ret < 0) {
+		dev_err(iss->dev, "ISP IPIPEIF pads links creation failed\n");
+		return ret;
+	}
+
+	ret = omap4iss_resizer_create_links(iss);
+	if (ret < 0) {
+		dev_err(iss->dev, "ISP RESIZER pads links creation failed\n");
+		return ret;
+	}
+
+	/* Connect the submodules. */
+	ret = media_create_pad_link(
+			&iss->csi2a.subdev.entity, CSI2_PAD_SOURCE,
+			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&iss->csi2b.subdev.entity, CSI2_PAD_SOURCE,
+			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP,
+			&iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP,
+			&iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = media_create_pad_link(
+			&iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP,
+			&iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+};
+
 static void iss_cleanup_modules(struct iss_device *iss)
 {
 	omap4iss_csi2_cleanup(iss);
@@ -1316,41 +1392,8 @@ static int iss_initialize_modules(struct iss_device *iss)
 		goto error_resizer;
 	}
 
-	/* Connect the submodules. */
-	ret = media_entity_create_link(
-			&iss->csi2a.subdev.entity, CSI2_PAD_SOURCE,
-			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&iss->csi2b.subdev.entity, CSI2_PAD_SOURCE,
-			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP,
-			&iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP,
-			&iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
-	ret = media_entity_create_link(
-			&iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP,
-			&iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap4iss_resizer_cleanup(iss);
 error_resizer:
 	omap4iss_ipipe_cleanup(iss);
 error_ipipe:
@@ -1464,10 +1507,21 @@ static int iss_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto error_modules;
 
+	ret = media_entity_enum_init(&iss->crashed, &iss->media_dev);
+	if (ret)
+		goto error_entities;
+
+	ret = iss_create_links(iss);
+	if (ret < 0)
+		goto error_entities;
+
 	omap4iss_put(iss);
 
 	return 0;
 
+error_entities:
+	iss_unregister_entities(iss);
+	media_entity_enum_cleanup(&iss->crashed);
 error_modules:
 	iss_cleanup_modules(iss);
 error_iss:
@@ -1485,6 +1539,7 @@ static int iss_remove(struct platform_device *pdev)
 	struct iss_device *iss = platform_get_drvdata(pdev);
 
 	iss_unregister_entities(iss);
+	media_entity_enum_cleanup(&iss->crashed);
 	iss_cleanup_modules(iss);
 
 	return 0;
diff --git a/drivers/staging/media/omap4iss/iss.h b/drivers/staging/media/omap4iss/iss.h
index 5929357fe687..05f08a3caa19 100644
--- a/drivers/staging/media/omap4iss/iss.h
+++ b/drivers/staging/media/omap4iss/iss.h
@@ -82,11 +82,12 @@ struct iss_reg {
 /*
  * struct iss_device - ISS device structure.
  * @syscon: Regmap for the syscon register space
- * @crashed: Bitmask of crashed entities (indexed by entity ID)
+ * @crashed: Crashed entities
  */
 struct iss_device {
 	struct v4l2_device v4l2_dev;
 	struct media_device media_dev;
+	struct media_entity_graph pm_count_graph;
 	struct device *dev;
 	u32 revision;
 
@@ -101,7 +102,7 @@ struct iss_device {
 	u64 raw_dmamask;
 
 	struct mutex iss_mutex;	/* For handling ref_count field */
-	unsigned int crashed;
+	struct media_entity_enum crashed;
 	int has_context;
 	int ref_count;
 
@@ -151,7 +152,8 @@ void omap4iss_isp_subclk_enable(struct iss_device *iss,
 void omap4iss_isp_subclk_disable(struct iss_device *iss,
 				 enum iss_isp_subclk_resource res);
 
-int omap4iss_pipeline_pm_use(struct media_entity *entity, int use);
+int omap4iss_pipeline_pm_use(struct media_entity *entity, int use,
+			     struct media_entity_graph *graph);
 
 int omap4iss_register_entities(struct platform_device *pdev,
 			       struct v4l2_device *v4l2_dev);
diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c
index b941035139ae..aaca39d751a5 100644
--- a/drivers/staging/media/omap4iss/iss_csi2.c
+++ b/drivers/staging/media/omap4iss/iss_csi2.c
@@ -1170,14 +1170,19 @@ static int csi2_link_setup(struct media_entity *entity,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct iss_csi2_device *csi2 = v4l2_get_subdevdata(sd);
 	struct iss_csi2_ctrl_cfg *ctrl = &csi2->ctrl;
+	unsigned int index = local->index;
+
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
 
 	/*
 	 * The ISS core doesn't support pipelines with multiple video outputs.
 	 * Revisit this when it will be implemented, and return -EBUSY for now.
 	 */
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case CSI2_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+	switch (index) {
+	case CSI2_PAD_SOURCE:
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (csi2->output & ~CSI2_OUTPUT_MEMORY)
 				return -EBUSY;
@@ -1187,7 +1192,7 @@ static int csi2_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case CSI2_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV:
+	case CSI2_PAD_SOURCE | 2 << 16:
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (csi2->output & ~CSI2_OUTPUT_IPIPEIF)
 				return -EBUSY;
@@ -1271,7 +1276,7 @@ static int csi2_init_entities(struct iss_csi2_device *csi2, const char *subname)
 	pads[CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 
 	me->ops = &csi2_media_ops;
-	ret = media_entity_init(me, CSI2_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, CSI2_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -1290,16 +1295,8 @@ static int csi2_init_entities(struct iss_csi2_device *csi2, const char *subname)
 	if (ret < 0)
 		goto error_video;
 
-	/* Connect the CSI2 subdev to the video node. */
-	ret = media_entity_create_link(&csi2->subdev.entity, CSI2_PAD_SOURCE,
-				       &csi2->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		goto error_link;
-
 	return 0;
 
-error_link:
-	omap4iss_video_cleanup(&csi2->video_out);
 error_video:
 	media_entity_cleanup(&csi2->subdev.entity);
 	return ret;
@@ -1342,6 +1339,33 @@ int omap4iss_csi2_init(struct iss_device *iss)
 }
 
 /*
+ * omap4iss_csi2_create_links() - CSI2 pads links creation
+ * @iss: Pointer to ISS device
+ *
+ * return negative error code or zero on success
+ */
+int omap4iss_csi2_create_links(struct iss_device *iss)
+{
+	struct iss_csi2_device *csi2a = &iss->csi2a;
+	struct iss_csi2_device *csi2b = &iss->csi2b;
+	int ret;
+
+	/* Connect the CSI2a subdev to the video node. */
+	ret = media_create_pad_link(&csi2a->subdev.entity, CSI2_PAD_SOURCE,
+				    &csi2a->video_out.video.entity, 0, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Connect the CSI2b subdev to the video node. */
+	ret = media_create_pad_link(&csi2b->subdev.entity, CSI2_PAD_SOURCE,
+				    &csi2b->video_out.video.entity, 0, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/*
  * omap4iss_csi2_cleanup - Routine for module driver cleanup
  */
 void omap4iss_csi2_cleanup(struct iss_device *iss)
diff --git a/drivers/staging/media/omap4iss/iss_csi2.h b/drivers/staging/media/omap4iss/iss_csi2.h
index f2f5343b4a80..24ab378d469f 100644
--- a/drivers/staging/media/omap4iss/iss_csi2.h
+++ b/drivers/staging/media/omap4iss/iss_csi2.h
@@ -151,6 +151,7 @@ struct iss_csi2_device {
 void omap4iss_csi2_isr(struct iss_csi2_device *csi2);
 int omap4iss_csi2_reset(struct iss_csi2_device *csi2);
 int omap4iss_csi2_init(struct iss_device *iss);
+int omap4iss_csi2_create_links(struct iss_device *iss);
 void omap4iss_csi2_cleanup(struct iss_device *iss);
 void omap4iss_csi2_unregister_entities(struct iss_csi2_device *csi2);
 int omap4iss_csi2_register_entities(struct iss_csi2_device *csi2,
diff --git a/drivers/staging/media/omap4iss/iss_ipipe.c b/drivers/staging/media/omap4iss/iss_ipipe.c
index dd0abeffd893..d38782e8e84c 100644
--- a/drivers/staging/media/omap4iss/iss_ipipe.c
+++ b/drivers/staging/media/omap4iss/iss_ipipe.c
@@ -447,8 +447,11 @@ static int ipipe_link_setup(struct media_entity *entity,
 	struct iss_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
 	struct iss_device *iss = to_iss_device(ipipe);
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case IPIPE_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	if (!is_media_entity_v4l2_subdev(remote->entity))
+		return -EINVAL;
+
+	switch (local->index) {
+	case IPIPE_PAD_SINK:
 		/* Read from IPIPEIF. */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipe->input = IPIPE_INPUT_NONE;
@@ -463,7 +466,7 @@ static int ipipe_link_setup(struct media_entity *entity,
 
 		break;
 
-	case IPIPE_PAD_SOURCE_VP | MEDIA_ENT_T_V4L2_SUBDEV:
+	case IPIPE_PAD_SOURCE_VP:
 		/* Send to RESIZER */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ipipe->output & ~IPIPE_OUTPUT_VP)
@@ -513,7 +516,7 @@ static int ipipe_init_entities(struct iss_ipipe_device *ipipe)
 	pads[IPIPE_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ipipe_media_ops;
-	ret = media_entity_init(me, IPIPE_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, IPIPE_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c
index 5f9e449e7007..23de8330731d 100644
--- a/drivers/staging/media/omap4iss/iss_ipipeif.c
+++ b/drivers/staging/media/omap4iss/iss_ipipeif.c
@@ -662,9 +662,14 @@ static int ipipeif_link_setup(struct media_entity *entity,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
 	struct iss_device *iss = to_iss_device(ipipeif);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case IPIPEIF_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case IPIPEIF_PAD_SINK | 2 << 16:
 		/* Read from the sensor CSI2a or CSI2b. */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			ipipeif->input = IPIPEIF_INPUT_NONE;
@@ -681,7 +686,7 @@ static int ipipeif_link_setup(struct media_entity *entity,
 
 		break;
 
-	case IPIPEIF_PAD_SOURCE_ISIF_SF | MEDIA_ENT_T_DEVNODE:
+	case IPIPEIF_PAD_SOURCE_ISIF_SF:
 		/* Write to memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ipipeif->output & ~IPIPEIF_OUTPUT_MEMORY)
@@ -692,7 +697,7 @@ static int ipipeif_link_setup(struct media_entity *entity,
 		}
 		break;
 
-	case IPIPEIF_PAD_SOURCE_VP | MEDIA_ENT_T_V4L2_SUBDEV:
+	case IPIPEIF_PAD_SOURCE_VP | 2 << 16:
 		/* Send to IPIPE/RESIZER */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (ipipeif->output & ~IPIPEIF_OUTPUT_VP)
@@ -743,7 +748,7 @@ static int ipipeif_init_entities(struct iss_ipipeif_device *ipipeif)
 	pads[IPIPEIF_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &ipipeif_media_ops;
-	ret = media_entity_init(me, IPIPEIF_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, IPIPEIF_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -757,18 +762,7 @@ static int ipipeif_init_entities(struct iss_ipipeif_device *ipipeif)
 	ipipeif->video_out.bpl_zero_padding = 1;
 	ipipeif->video_out.bpl_max = 0x1ffe0;
 
-	ret = omap4iss_video_init(&ipipeif->video_out, "ISP IPIPEIF");
-	if (ret < 0)
-		return ret;
-
-	/* Connect the IPIPEIF subdev to the video node. */
-	ret = media_entity_create_link(&ipipeif->subdev.entity,
-				       IPIPEIF_PAD_SOURCE_ISIF_SF,
-				       &ipipeif->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+	return omap4iss_video_init(&ipipeif->video_out, "ISP IPIPEIF");
 }
 
 void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif)
@@ -821,6 +815,22 @@ int omap4iss_ipipeif_init(struct iss_device *iss)
 }
 
 /*
+ * omap4iss_ipipeif_create_links() - IPIPEIF pads links creation
+ * @iss: Pointer to ISS device
+ *
+ * return negative error code or zero on success
+ */
+int omap4iss_ipipeif_create_links(struct iss_device *iss)
+{
+	struct iss_ipipeif_device *ipipeif = &iss->ipipeif;
+
+	/* Connect the IPIPEIF subdev to the video node. */
+	return media_create_pad_link(&ipipeif->subdev.entity,
+				     IPIPEIF_PAD_SOURCE_ISIF_SF,
+				     &ipipeif->video_out.video.entity, 0, 0);
+}
+
+/*
  * omap4iss_ipipeif_cleanup - IPIPEIF module cleanup.
  * @iss: Device pointer specific to the OMAP4 ISS.
  */
diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.h b/drivers/staging/media/omap4iss/iss_ipipeif.h
index c6bd96d9656c..bad32b1d6ad8 100644
--- a/drivers/staging/media/omap4iss/iss_ipipeif.h
+++ b/drivers/staging/media/omap4iss/iss_ipipeif.h
@@ -78,6 +78,7 @@ struct iss_ipipeif_device {
 struct iss_device;
 
 int omap4iss_ipipeif_init(struct iss_device *iss);
+int omap4iss_ipipeif_create_links(struct iss_device *iss);
 void omap4iss_ipipeif_cleanup(struct iss_device *iss);
 int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif,
 				       struct v4l2_device *vdev);
diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c
index 108961e05f53..f1d352c711d5 100644
--- a/drivers/staging/media/omap4iss/iss_resizer.c
+++ b/drivers/staging/media/omap4iss/iss_resizer.c
@@ -716,9 +716,14 @@ static int resizer_link_setup(struct media_entity *entity,
 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
 	struct iss_resizer_device *resizer = v4l2_get_subdevdata(sd);
 	struct iss_device *iss = to_iss_device(resizer);
+	unsigned int index = local->index;
 
-	switch (local->index | media_entity_type(remote->entity)) {
-	case RESIZER_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+	/* FIXME: this is actually a hack! */
+	if (is_media_entity_v4l2_subdev(remote->entity))
+		index |= 2 << 16;
+
+	switch (index) {
+	case RESIZER_PAD_SINK | 2 << 16:
 		/* Read from IPIPE or IPIPEIF. */
 		if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 			resizer->input = RESIZER_INPUT_NONE;
@@ -735,7 +740,7 @@ static int resizer_link_setup(struct media_entity *entity,
 
 		break;
 
-	case RESIZER_PAD_SOURCE_MEM | MEDIA_ENT_T_DEVNODE:
+	case RESIZER_PAD_SOURCE_MEM:
 		/* Write to memory */
 		if (flags & MEDIA_LNK_FL_ENABLED) {
 			if (resizer->output & ~RESIZER_OUTPUT_MEMORY)
@@ -785,7 +790,7 @@ static int resizer_init_entities(struct iss_resizer_device *resizer)
 	pads[RESIZER_PAD_SOURCE_MEM].flags = MEDIA_PAD_FL_SOURCE;
 
 	me->ops = &resizer_media_ops;
-	ret = media_entity_init(me, RESIZER_PADS_NUM, pads, 0);
+	ret = media_entity_pads_init(me, RESIZER_PADS_NUM, pads);
 	if (ret < 0)
 		return ret;
 
@@ -799,18 +804,7 @@ static int resizer_init_entities(struct iss_resizer_device *resizer)
 	resizer->video_out.bpl_zero_padding = 1;
 	resizer->video_out.bpl_max = 0x1ffe0;
 
-	ret = omap4iss_video_init(&resizer->video_out, "ISP resizer a");
-	if (ret < 0)
-		return ret;
-
-	/* Connect the RESIZER subdev to the video node. */
-	ret = media_entity_create_link(&resizer->subdev.entity,
-				       RESIZER_PAD_SOURCE_MEM,
-				       &resizer->video_out.video.entity, 0, 0);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+	return omap4iss_video_init(&resizer->video_out, "ISP resizer a");
 }
 
 void omap4iss_resizer_unregister_entities(struct iss_resizer_device *resizer)
@@ -863,6 +857,22 @@ int omap4iss_resizer_init(struct iss_device *iss)
 }
 
 /*
+ * omap4iss_resizer_create_links() - RESIZER pads links creation
+ * @iss: Pointer to ISS device
+ *
+ * return negative error code or zero on success
+ */
+int omap4iss_resizer_create_links(struct iss_device *iss)
+{
+	struct iss_resizer_device *resizer = &iss->resizer;
+
+	/* Connect the RESIZER subdev to the video node. */
+	return media_create_pad_link(&resizer->subdev.entity,
+				     RESIZER_PAD_SOURCE_MEM,
+				     &resizer->video_out.video.entity, 0, 0);
+}
+
+/*
  * omap4iss_resizer_cleanup - RESIZER module cleanup.
  * @iss: Device pointer specific to the OMAP4 ISS.
  */
diff --git a/drivers/staging/media/omap4iss/iss_resizer.h b/drivers/staging/media/omap4iss/iss_resizer.h
index 1e145abafc65..8b7c5fe9ffed 100644
--- a/drivers/staging/media/omap4iss/iss_resizer.h
+++ b/drivers/staging/media/omap4iss/iss_resizer.h
@@ -61,6 +61,7 @@ struct iss_resizer_device {
 struct iss_device;
 
 int omap4iss_resizer_init(struct iss_device *iss);
+int omap4iss_resizer_create_links(struct iss_device *iss);
 void omap4iss_resizer_cleanup(struct iss_device *iss);
 int omap4iss_resizer_register_entities(struct iss_resizer_device *resizer,
 				       struct v4l2_device *vdev);
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index e9aeca08986f..058233a9de67 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -190,8 +190,7 @@ iss_video_remote_subdev(struct iss_video *video, u32 *pad)
 
 	remote = media_entity_remote_pad(&video->pad);
 
-	if (!remote ||
-	    media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
 		return NULL;
 
 	if (pad)
@@ -206,17 +205,23 @@ iss_video_far_end(struct iss_video *video)
 {
 	struct media_entity_graph graph;
 	struct media_entity *entity = &video->video.entity;
-	struct media_device *mdev = entity->parent;
+	struct media_device *mdev = entity->graph_obj.mdev;
 	struct iss_video *far_end = NULL;
 
 	mutex_lock(&mdev->graph_mutex);
+
+	if (media_entity_graph_walk_init(&graph, mdev)) {
+		mutex_unlock(&mdev->graph_mutex);
+		return NULL;
+	}
+
 	media_entity_graph_walk_start(&graph, entity);
 
 	while ((entity = media_entity_graph_walk_next(&graph))) {
 		if (entity == &video->video.entity)
 			continue;
 
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE)
+		if (!is_media_entity_v4l2_io(entity))
 			continue;
 
 		far_end = to_iss_video(media_entity_to_video_device(entity));
@@ -227,6 +232,9 @@ iss_video_far_end(struct iss_video *video)
 	}
 
 	mutex_unlock(&mdev->graph_mutex);
+
+	media_entity_graph_walk_cleanup(&graph);
+
 	return far_end;
 }
 
@@ -750,7 +758,7 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 	struct iss_video_fh *vfh = to_iss_video_fh(fh);
 	struct iss_video *video = video_drvdata(file);
 	struct media_entity_graph graph;
-	struct media_entity *entity;
+	struct media_entity *entity = &video->video.entity;
 	enum iss_pipeline_state state;
 	struct iss_pipeline *pipe;
 	struct iss_video *far_end;
@@ -765,24 +773,30 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 	/* Start streaming on the pipeline. No link touching an entity in the
 	 * pipeline can be activated or deactivated once streaming is started.
 	 */
-	pipe = video->video.entity.pipe
-	     ? to_iss_pipeline(&video->video.entity) : &video->pipe;
+	pipe = entity->pipe
+	     ? to_iss_pipeline(entity) : &video->pipe;
 	pipe->external = NULL;
 	pipe->external_rate = 0;
 	pipe->external_bpp = 0;
-	pipe->entities = 0;
+
+	ret = media_entity_enum_init(&pipe->ent_enum, entity->graph_obj.mdev);
+	if (ret)
+		goto err_graph_walk_init;
+
+	ret = media_entity_graph_walk_init(&graph, entity->graph_obj.mdev);
+	if (ret)
+		goto err_graph_walk_init;
 
 	if (video->iss->pdata->set_constraints)
 		video->iss->pdata->set_constraints(video->iss, true);
 
-	ret = media_entity_pipeline_start(&video->video.entity, &pipe->pipe);
+	ret = media_entity_pipeline_start(entity, &pipe->pipe);
 	if (ret < 0)
 		goto err_media_entity_pipeline_start;
 
-	entity = &video->video.entity;
 	media_entity_graph_walk_start(&graph, entity);
 	while ((entity = media_entity_graph_walk_next(&graph)))
-		pipe->entities |= 1 << entity->id;
+		media_entity_enum_set(&pipe->ent_enum, entity);
 
 	/* Verify that the currently configured format matches the output of
 	 * the connected subdev.
@@ -852,7 +866,10 @@ iss_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 		spin_unlock_irqrestore(&video->qlock, flags);
 	}
 
+	media_entity_graph_walk_cleanup(&graph);
+
 	mutex_unlock(&video->stream_lock);
+
 	return 0;
 
 err_omap4iss_set_stream:
@@ -864,7 +881,13 @@ err_media_entity_pipeline_start:
 		video->iss->pdata->set_constraints(video->iss, false);
 	video->queue = NULL;
 
+	media_entity_graph_walk_cleanup(&graph);
+
+err_graph_walk_init:
+	media_entity_enum_cleanup(&pipe->ent_enum);
+
 	mutex_unlock(&video->stream_lock);
+
 	return ret;
 }
 
@@ -902,6 +925,8 @@ iss_video_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
 	vb2_streamoff(&vfh->queue, type);
 	video->queue = NULL;
 
+	media_entity_enum_cleanup(&pipe->ent_enum);
+
 	if (video->iss->pdata->set_constraints)
 		video->iss->pdata->set_constraints(video->iss, false);
 	media_entity_pipeline_stop(&video->video.entity);
@@ -984,7 +1009,13 @@ static int iss_video_open(struct file *file)
 		goto done;
 	}
 
-	ret = omap4iss_pipeline_pm_use(&video->video.entity, 1);
+	ret = media_entity_graph_walk_init(&handle->graph,
+					   &video->iss->media_dev);
+	if (ret)
+		goto done;
+
+	ret = omap4iss_pipeline_pm_use(&video->video.entity, 1,
+				       &handle->graph);
 	if (ret < 0) {
 		omap4iss_put(video->iss);
 		goto done;
@@ -1023,6 +1054,7 @@ static int iss_video_open(struct file *file)
 done:
 	if (ret < 0) {
 		v4l2_fh_del(&handle->vfh);
+		media_entity_graph_walk_cleanup(&handle->graph);
 		kfree(handle);
 	}
 
@@ -1038,12 +1070,13 @@ static int iss_video_release(struct file *file)
 	/* Disable streaming and free the buffers queue resources. */
 	iss_video_streamoff(file, vfh, video->type);
 
-	omap4iss_pipeline_pm_use(&video->video.entity, 0);
+	omap4iss_pipeline_pm_use(&video->video.entity, 0, &handle->graph);
 
 	/* Release the videobuf2 queue */
 	vb2_queue_release(&handle->queue);
 
 	/* Release the file handle. */
+	media_entity_graph_walk_cleanup(&handle->graph);
 	v4l2_fh_del(vfh);
 	kfree(handle);
 	file->private_data = NULL;
@@ -1102,7 +1135,7 @@ int omap4iss_video_init(struct iss_video *video, const char *name)
 		return -EINVAL;
 	}
 
-	ret = media_entity_init(&video->video.entity, 1, &video->pad, 0);
+	ret = media_entity_pads_init(&video->video.entity, 1, &video->pad);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/media/omap4iss/iss_video.h b/drivers/staging/media/omap4iss/iss_video.h
index 41532eda1277..34588b7176ca 100644
--- a/drivers/staging/media/omap4iss/iss_video.h
+++ b/drivers/staging/media/omap4iss/iss_video.h
@@ -77,7 +77,7 @@ enum iss_pipeline_state {
 
 /*
  * struct iss_pipeline - An OMAP4 ISS hardware pipeline
- * @entities: Bitmask of entities in the pipeline (indexed by entity ID)
+ * @ent_enum: Entities in the pipeline
  * @error: A hardware error occurred during capture
  */
 struct iss_pipeline {
@@ -87,7 +87,7 @@ struct iss_pipeline {
 	enum iss_pipeline_stream_state stream_state;
 	struct iss_video *input;
 	struct iss_video *output;
-	unsigned int entities;
+	struct media_entity_enum ent_enum;
 	atomic_t frame_number;
 	bool do_propagation; /* of frame number */
 	bool error;
@@ -183,6 +183,7 @@ struct iss_video_fh {
 	struct vb2_queue queue;
 	struct v4l2_format format;
 	struct v4l2_fract timeperframe;
+	struct media_entity_graph graph;
 };
 
 #define to_iss_video_fh(fh)	container_of(fh, struct iss_video_fh, vfh)
diff --git a/drivers/staging/most/aim-network/networking.h b/drivers/staging/most/aim-network/networking.h
index 1b8b434fabb0..6f346d410525 100644
--- a/drivers/staging/most/aim-network/networking.h
+++ b/drivers/staging/most/aim-network/networking.h
@@ -15,9 +15,7 @@
 
 #include "mostcore.h"
 
-
 void most_deliver_netinfo(struct most_interface *iface,
 			  unsigned char link_stat, unsigned char *mac_addr);
 
-
 #endif
diff --git a/drivers/staging/most/hdm-dim2/dim2_errors.h b/drivers/staging/most/hdm-dim2/dim2_errors.h
index 314f7de2be73..5a713df1d1d4 100644
--- a/drivers/staging/most/hdm-dim2/dim2_errors.h
+++ b/drivers/staging/most/hdm-dim2/dim2_errors.h
@@ -19,7 +19,6 @@
 extern "C" {
 #endif
 
-
 /**
  * MOST DIM errors.
  */
@@ -59,7 +58,6 @@ enum dim_errors_t {
 	DIM_ERR_OVERFLOW,
 };
 
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/hdm-dim2/dim2_hal.c
index c915c44f025e..172257596f1f 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.c
@@ -74,7 +74,7 @@ static inline u32 bit_mask(u8 position)
 
 static inline bool dim_on_error(u8 error_id, const char *error_message)
 {
-	DIMCB_OnError(error_id, error_message);
+	dimcb_on_error(error_id, error_message);
 	return false;
 }
 
@@ -151,44 +151,44 @@ static void free_dbr(int offs, int size)
 
 static u32 dim2_read_ctr(u32 ctr_addr, u16 mdat_idx)
 {
-	DIMCB_IoWrite(&g.dim2->MADR, ctr_addr);
+	dimcb_io_write(&g.dim2->MADR, ctr_addr);
 
 	/* wait till transfer is completed */
-	while ((DIMCB_IoRead(&g.dim2->MCTL) & 1) != 1)
+	while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1)
 		continue;
 
-	DIMCB_IoWrite(&g.dim2->MCTL, 0);   /* clear transfer complete */
+	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
 
-	return DIMCB_IoRead((&g.dim2->MDAT0) + mdat_idx);
+	return dimcb_io_read((&g.dim2->MDAT0) + mdat_idx);
 }
 
 static void dim2_write_ctr_mask(u32 ctr_addr, const u32 *mask, const u32 *value)
 {
 	enum { MADR_WNR_BIT = 31 };
 
-	DIMCB_IoWrite(&g.dim2->MCTL, 0);   /* clear transfer complete */
+	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
 
 	if (mask[0] != 0)
-		DIMCB_IoWrite(&g.dim2->MDAT0, value[0]);
+		dimcb_io_write(&g.dim2->MDAT0, value[0]);
 	if (mask[1] != 0)
-		DIMCB_IoWrite(&g.dim2->MDAT1, value[1]);
+		dimcb_io_write(&g.dim2->MDAT1, value[1]);
 	if (mask[2] != 0)
-		DIMCB_IoWrite(&g.dim2->MDAT2, value[2]);
+		dimcb_io_write(&g.dim2->MDAT2, value[2]);
 	if (mask[3] != 0)
-		DIMCB_IoWrite(&g.dim2->MDAT3, value[3]);
+		dimcb_io_write(&g.dim2->MDAT3, value[3]);
 
-	DIMCB_IoWrite(&g.dim2->MDWE0, mask[0]);
-	DIMCB_IoWrite(&g.dim2->MDWE1, mask[1]);
-	DIMCB_IoWrite(&g.dim2->MDWE2, mask[2]);
-	DIMCB_IoWrite(&g.dim2->MDWE3, mask[3]);
+	dimcb_io_write(&g.dim2->MDWE0, mask[0]);
+	dimcb_io_write(&g.dim2->MDWE1, mask[1]);
+	dimcb_io_write(&g.dim2->MDWE2, mask[2]);
+	dimcb_io_write(&g.dim2->MDWE3, mask[3]);
 
-	DIMCB_IoWrite(&g.dim2->MADR, bit_mask(MADR_WNR_BIT) | ctr_addr);
+	dimcb_io_write(&g.dim2->MADR, bit_mask(MADR_WNR_BIT) | ctr_addr);
 
 	/* wait till transfer is completed */
-	while ((DIMCB_IoRead(&g.dim2->MCTL) & 1) != 1)
+	while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1)
 		continue;
 
-	DIMCB_IoWrite(&g.dim2->MCTL, 0);   /* clear transfer complete */
+	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
 }
 
 static inline void dim2_write_ctr(u32 ctr_addr, const u32 *value)
@@ -341,15 +341,15 @@ static void dim2_configure_channel(
 	dim2_configure_cat(AHB_CAT, ch_addr, type, is_tx ? 0 : 1, sync_mfe);
 
 	/* unmask interrupt for used channel, enable mlb_sys_int[0] interrupt */
-	DIMCB_IoWrite(&g.dim2->ACMR0,
-		      DIMCB_IoRead(&g.dim2->ACMR0) | bit_mask(ch_addr));
+	dimcb_io_write(&g.dim2->ACMR0,
+		       dimcb_io_read(&g.dim2->ACMR0) | bit_mask(ch_addr));
 }
 
 static void dim2_clear_channel(u8 ch_addr)
 {
 	/* mask interrupt for used channel, disable mlb_sys_int[0] interrupt */
-	DIMCB_IoWrite(&g.dim2->ACMR0,
-		      DIMCB_IoRead(&g.dim2->ACMR0) & ~bit_mask(ch_addr));
+	dimcb_io_write(&g.dim2->ACMR0,
+		       dimcb_io_read(&g.dim2->ACMR0) & ~bit_mask(ch_addr));
 
 	dim2_clear_cat(AHB_CAT, ch_addr);
 	dim2_clear_adt(ch_addr);
@@ -455,20 +455,20 @@ static inline u16 norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame)
 static void dim2_cleanup(void)
 {
 	/* disable MediaLB */
-	DIMCB_IoWrite(&g.dim2->MLBC0, false << MLBC0_MLBEN_BIT);
+	dimcb_io_write(&g.dim2->MLBC0, false << MLBC0_MLBEN_BIT);
 
 	dim2_clear_ctram();
 
 	/* disable mlb_int interrupt */
-	DIMCB_IoWrite(&g.dim2->MIEN, 0);
+	dimcb_io_write(&g.dim2->MIEN, 0);
 
 	/* clear status for all dma channels */
-	DIMCB_IoWrite(&g.dim2->ACSR0, 0xFFFFFFFF);
-	DIMCB_IoWrite(&g.dim2->ACSR1, 0xFFFFFFFF);
+	dimcb_io_write(&g.dim2->ACSR0, 0xFFFFFFFF);
+	dimcb_io_write(&g.dim2->ACSR1, 0xFFFFFFFF);
 
 	/* mask interrupts for all channels */
-	DIMCB_IoWrite(&g.dim2->ACMR0, 0);
-	DIMCB_IoWrite(&g.dim2->ACMR1, 0);
+	dimcb_io_write(&g.dim2->ACMR0, 0);
+	dimcb_io_write(&g.dim2->ACMR1, 0);
 }
 
 static void dim2_initialize(bool enable_6pin, u8 mlb_clock)
@@ -476,23 +476,23 @@ static void dim2_initialize(bool enable_6pin, u8 mlb_clock)
 	dim2_cleanup();
 
 	/* configure and enable MediaLB */
-	DIMCB_IoWrite(&g.dim2->MLBC0,
-		      enable_6pin << MLBC0_MLBPEN_BIT |
-		      mlb_clock << MLBC0_MLBCLK_SHIFT |
-		      MLBC0_FCNT_VAL(FRAMES_PER_SUBBUFF) << MLBC0_FCNT_SHIFT |
-		      true << MLBC0_MLBEN_BIT);
+	dimcb_io_write(&g.dim2->MLBC0,
+		       enable_6pin << MLBC0_MLBPEN_BIT |
+		       mlb_clock << MLBC0_MLBCLK_SHIFT |
+		       MLBC0_FCNT_VAL(FRAMES_PER_SUBBUFF) << MLBC0_FCNT_SHIFT |
+		       true << MLBC0_MLBEN_BIT);
 
 	/* activate all HBI channels */
-	DIMCB_IoWrite(&g.dim2->HCMR0, 0xFFFFFFFF);
-	DIMCB_IoWrite(&g.dim2->HCMR1, 0xFFFFFFFF);
+	dimcb_io_write(&g.dim2->HCMR0, 0xFFFFFFFF);
+	dimcb_io_write(&g.dim2->HCMR1, 0xFFFFFFFF);
 
 	/* enable HBI */
-	DIMCB_IoWrite(&g.dim2->HCTL, bit_mask(HCTL_EN_BIT));
+	dimcb_io_write(&g.dim2->HCTL, bit_mask(HCTL_EN_BIT));
 
 	/* configure DMA */
-	DIMCB_IoWrite(&g.dim2->ACTL,
-		      ACTL_DMA_MODE_VAL_DMA_MODE_1 << ACTL_DMA_MODE_BIT |
-		      true << ACTL_SCE_BIT);
+	dimcb_io_write(&g.dim2->ACTL,
+		       ACTL_DMA_MODE_VAL_DMA_MODE_1 << ACTL_DMA_MODE_BIT |
+		       true << ACTL_SCE_BIT);
 }
 
 static bool dim2_is_mlb_locked(void)
@@ -500,12 +500,12 @@ static bool dim2_is_mlb_locked(void)
 	u32 const mask0 = bit_mask(MLBC0_MLBLK_BIT);
 	u32 const mask1 = bit_mask(MLBC1_CLKMERR_BIT) |
 			  bit_mask(MLBC1_LOCKERR_BIT);
-	u32 const c1 = DIMCB_IoRead(&g.dim2->MLBC1);
+	u32 const c1 = dimcb_io_read(&g.dim2->MLBC1);
 	u32 const nda_mask = (u32)MLBC1_NDA_MASK << MLBC1_NDA_SHIFT;
 
-	DIMCB_IoWrite(&g.dim2->MLBC1, c1 & nda_mask);
-	return (DIMCB_IoRead(&g.dim2->MLBC1) & mask1) == 0 &&
-	       (DIMCB_IoRead(&g.dim2->MLBC0) & mask0) != 0;
+	dimcb_io_write(&g.dim2->MLBC1, c1 & nda_mask);
+	return (dimcb_io_read(&g.dim2->MLBC1) & mask1) == 0 &&
+	       (dimcb_io_read(&g.dim2->MLBC0) & mask0) != 0;
 }
 
 /* -------------------------------------------------------------------------- */
@@ -531,7 +531,7 @@ static inline bool service_channel(u8 ch_addr, u8 idx)
 	}
 
 	/* clear channel status bit */
-	DIMCB_IoWrite(&g.dim2->ACSR0, bit_mask(ch_addr));
+	dimcb_io_write(&g.dim2->ACSR0, bit_mask(ch_addr));
 
 	return true;
 }
@@ -650,7 +650,7 @@ static bool channel_detach_buffers(struct dim_channel *ch, u16 buffers_number)
 /* -------------------------------------------------------------------------- */
 /* API */
 
-u8 DIM_Startup(void *dim_base_address, u32 mlb_clock)
+u8 dim_startup(void *dim_base_address, u32 mlb_clock)
 {
 	g.dim_is_initialized = false;
 
@@ -673,13 +673,13 @@ u8 DIM_Startup(void *dim_base_address, u32 mlb_clock)
 	return DIM_NO_ERROR;
 }
 
-void DIM_Shutdown(void)
+void dim_shutdown(void)
 {
 	g.dim_is_initialized = false;
 	dim2_cleanup();
 }
 
-bool DIM_GetLockState(void)
+bool dim_get_lock_state(void)
 {
 	return dim2_is_mlb_locked();
 }
@@ -706,7 +706,7 @@ static u8 init_ctrl_async(struct dim_channel *ch, u8 type, u8 is_tx,
 	return DIM_NO_ERROR;
 }
 
-u16 DIM_NormCtrlAsyncBufferSize(u16 buf_size)
+u16 dim_norm_ctrl_async_buffer_size(u16 buf_size)
 {
 	return norm_ctrl_async_buffer_size(buf_size);
 }
@@ -717,7 +717,7 @@ u16 DIM_NormCtrlAsyncBufferSize(u16 buf_size)
  *
  * Returns non-zero correct buffer size or zero by error.
  */
-u16 DIM_NormIsocBufferSize(u16 buf_size, u16 packet_length)
+u16 dim_norm_isoc_buffer_size(u16 buf_size, u16 packet_length)
 {
 	if (!check_packet_length(packet_length))
 		return 0;
@@ -731,7 +731,7 @@ u16 DIM_NormIsocBufferSize(u16 buf_size, u16 packet_length)
  *
  * Returns non-zero correct buffer size or zero by error.
  */
-u16 DIM_NormSyncBufferSize(u16 buf_size, u16 bytes_per_frame)
+u16 dim_norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame)
 {
 	if (!check_bytes_per_frame(bytes_per_frame))
 		return 0;
@@ -739,22 +739,22 @@ u16 DIM_NormSyncBufferSize(u16 buf_size, u16 bytes_per_frame)
 	return norm_sync_buffer_size(buf_size, bytes_per_frame);
 }
 
-u8 DIM_InitControl(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		   u16 max_buffer_size)
+u8 dim_init_control(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		    u16 max_buffer_size)
 {
 	return init_ctrl_async(ch, CAT_CT_VAL_CONTROL, is_tx, ch_address,
 			       max_buffer_size);
 }
 
-u8 DIM_InitAsync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 max_buffer_size)
+u8 dim_init_async(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		  u16 max_buffer_size)
 {
 	return init_ctrl_async(ch, CAT_CT_VAL_ASYNC, is_tx, ch_address,
 			       max_buffer_size);
 }
 
-u8 DIM_InitIsoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		u16 packet_length)
+u8 dim_init_isoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		 u16 packet_length)
 {
 	if (!g.dim_is_initialized || !ch)
 		return DIM_ERR_DRIVER_NOT_INITIALIZED;
@@ -778,8 +778,8 @@ u8 DIM_InitIsoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
 	return DIM_NO_ERROR;
 }
 
-u8 DIM_InitSync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		u16 bytes_per_frame)
+u8 dim_init_sync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		 u16 bytes_per_frame)
 {
 	if (!g.dim_is_initialized || !ch)
 		return DIM_ERR_DRIVER_NOT_INITIALIZED;
@@ -803,7 +803,7 @@ u8 DIM_InitSync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
 	return DIM_NO_ERROR;
 }
 
-u8 DIM_DestroyChannel(struct dim_channel *ch)
+u8 dim_destroy_channel(struct dim_channel *ch)
 {
 	if (!g.dim_is_initialized || !ch)
 		return DIM_ERR_DRIVER_NOT_INITIALIZED;
@@ -816,7 +816,7 @@ u8 DIM_DestroyChannel(struct dim_channel *ch)
 	return DIM_NO_ERROR;
 }
 
-void DIM_ServiceIrq(struct dim_channel *const *channels)
+void dim_service_irq(struct dim_channel *const *channels)
 {
 	bool state_changed;
 
@@ -850,11 +850,11 @@ void DIM_ServiceIrq(struct dim_channel *const *channels)
 	} while (state_changed);
 
 	/* clear pending Interrupts */
-	DIMCB_IoWrite(&g.dim2->MS0, 0);
-	DIMCB_IoWrite(&g.dim2->MS1, 0);
+	dimcb_io_write(&g.dim2->MS0, 0);
+	dimcb_io_write(&g.dim2->MS1, 0);
 }
 
-u8 DIM_ServiceChannel(struct dim_channel *ch)
+u8 dim_service_channel(struct dim_channel *ch)
 {
 	if (!g.dim_is_initialized || !ch)
 		return DIM_ERR_DRIVER_NOT_INITIALIZED;
@@ -862,8 +862,8 @@ u8 DIM_ServiceChannel(struct dim_channel *ch)
 	return channel_service(ch);
 }
 
-struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
-					   struct dim_ch_state_t *state_ptr)
+struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
+					     struct dim_ch_state_t *state_ptr)
 {
 	if (!ch || !state_ptr)
 		return NULL;
@@ -874,7 +874,8 @@ struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
 	return state_ptr;
 }
 
-bool DIM_EnqueueBuffer(struct dim_channel *ch, u32 buffer_addr, u16 buffer_size)
+bool dim_enqueue_buffer(struct dim_channel *ch, u32 buffer_addr,
+			u16 buffer_size)
 {
 	if (!ch)
 		return dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED,
@@ -883,7 +884,7 @@ bool DIM_EnqueueBuffer(struct dim_channel *ch, u32 buffer_addr, u16 buffer_size)
 	return channel_start(ch, buffer_addr, buffer_size);
 }
 
-bool DIM_DetachBuffers(struct dim_channel *ch, u16 buffers_number)
+bool dim_detach_buffers(struct dim_channel *ch, u16 buffers_number)
 {
 	if (!ch)
 		return dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED,
diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/hdm-dim2/dim2_hal.h
index ebb7d87a45fc..48cdd9c8cde1 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.h
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.h
@@ -17,7 +17,6 @@
 
 #include <linux/types.h>
 
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -66,51 +65,49 @@ struct dim_channel {
 	u16 done_sw_buffers_number; /*< Done software buffers number. */
 };
 
+u8 dim_startup(void *dim_base_address, u32 mlb_clock);
 
-u8 DIM_Startup(void *dim_base_address, u32 mlb_clock);
-
-void DIM_Shutdown(void);
-
-bool DIM_GetLockState(void);
+void dim_shutdown(void);
 
-u16 DIM_NormCtrlAsyncBufferSize(u16 buf_size);
+bool dim_get_lock_state(void);
 
-u16 DIM_NormIsocBufferSize(u16 buf_size, u16 packet_length);
+u16 dim_norm_ctrl_async_buffer_size(u16 buf_size);
 
-u16 DIM_NormSyncBufferSize(u16 buf_size, u16 bytes_per_frame);
+u16 dim_norm_isoc_buffer_size(u16 buf_size, u16 packet_length);
 
-u8 DIM_InitControl(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		   u16 max_buffer_size);
+u16 dim_norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame);
 
-u8 DIM_InitAsync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 max_buffer_size);
+u8 dim_init_control(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		    u16 max_buffer_size);
 
-u8 DIM_InitIsoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		u16 packet_length);
+u8 dim_init_async(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		  u16 max_buffer_size);
 
-u8 DIM_InitSync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		u16 bytes_per_frame);
+u8 dim_init_isoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		 u16 packet_length);
 
-u8 DIM_DestroyChannel(struct dim_channel *ch);
+u8 dim_init_sync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
+		 u16 bytes_per_frame);
 
-void DIM_ServiceIrq(struct dim_channel *const *channels);
+u8 dim_destroy_channel(struct dim_channel *ch);
 
-u8 DIM_ServiceChannel(struct dim_channel *ch);
+void dim_service_irq(struct dim_channel *const *channels);
 
-struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
-		struct dim_ch_state_t *dim_ch_state_ptr);
+u8 dim_service_channel(struct dim_channel *ch);
 
-bool DIM_EnqueueBuffer(struct dim_channel *ch, u32 buffer_addr,
-		       u16 buffer_size);
+struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
+					     struct dim_ch_state_t *state_ptr);
 
-bool DIM_DetachBuffers(struct dim_channel *ch, u16 buffers_number);
+bool dim_enqueue_buffer(struct dim_channel *ch, u32 buffer_addr,
+			u16 buffer_size);
 
-u32 DIMCB_IoRead(u32 *ptr32);
+bool dim_detach_buffers(struct dim_channel *ch, u16 buffers_number);
 
-void DIMCB_IoWrite(u32 *ptr32, u32 value);
+u32 dimcb_io_read(u32 *ptr32);
 
-void DIMCB_OnError(u8 error_id, const char *error_message);
+void dimcb_io_write(u32 *ptr32, u32 value);
 
+void dimcb_on_error(u8 error_id, const char *error_message);
 
 #ifdef __cplusplus
 }
diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c
index b6fe346f73b0..327d738c7194 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c
@@ -73,8 +73,8 @@ struct hdm_channel {
 	char name[sizeof "caNNN"];
 	bool is_initialized;
 	struct dim_channel ch;
-	struct list_head pending_list;	/* before DIM_EnqueueBuffer() */
-	struct list_head started_list;	/* after DIM_EnqueueBuffer() */
+	struct list_head pending_list;	/* before dim_enqueue_buffer() */
+	struct list_head started_list;	/* after dim_enqueue_buffer() */
 	enum most_channel_direction direction;
 	enum most_channel_data_type data_type;
 };
@@ -128,40 +128,40 @@ bool dim2_sysfs_get_state_cb(void)
 	unsigned long flags;
 
 	spin_lock_irqsave(&dim_lock, flags);
-	state = DIM_GetLockState();
+	state = dim_get_lock_state();
 	spin_unlock_irqrestore(&dim_lock, flags);
 
 	return state;
 }
 
 /**
- * DIMCB_IoRead - callback from HAL to read an I/O register
+ * dimcb_io_read - callback from HAL to read an I/O register
  * @ptr32: register address
  */
-u32 DIMCB_IoRead(u32 *ptr32)
+u32 dimcb_io_read(u32 *ptr32)
 {
 	return __raw_readl(ptr32);
 }
 
 /**
- * DIMCB_IoWrite - callback from HAL to write value to an I/O register
+ * dimcb_io_write - callback from HAL to write value to an I/O register
  * @ptr32: register address
  * @value: value to write
  */
-void DIMCB_IoWrite(u32 *ptr32, u32 value)
+void dimcb_io_write(u32 *ptr32, u32 value)
 {
 	__raw_writel(value, ptr32);
 }
 
 /**
- * DIMCB_OnError - callback from HAL to report miscommunication between
+ * dimcb_on_error - callback from HAL to report miscommunication between
  * HDM and HAL
  * @error_id: Error ID
  * @error_message: Error message. Some text in a free format
  */
-void DIMCB_OnError(u8 error_id, const char *error_message)
+void dimcb_on_error(u8 error_id, const char *error_message)
 {
-	pr_err("DIMCB_OnError: error_id - %d, error_message - %s\n", error_id,
+	pr_err("dimcb_on_error: error_id - %d, error_message - %s\n", error_id,
 	       error_message);
 }
 
@@ -212,9 +212,9 @@ static int startup_dim(struct platform_device *pdev)
 			return ret;
 	}
 
-	hal_ret = DIM_Startup(dev->io_base, dev->clk_speed);
+	hal_ret = dim_startup(dev->io_base, dev->clk_speed);
 	if (hal_ret != DIM_NO_ERROR) {
-		pr_err("DIM_Startup failed: %d\n", hal_ret);
+		pr_err("dim_startup failed: %d\n", hal_ret);
 		if (pdata && pdata->destroy)
 			pdata->destroy(pdata);
 		return -ENODEV;
@@ -246,7 +246,7 @@ static int try_start_dim_transfer(struct hdm_channel *hdm_ch)
 		return -EAGAIN;
 	}
 
-	if (!DIM_GetChannelState(&hdm_ch->ch, &st)->ready) {
+	if (!dim_get_channel_state(&hdm_ch->ch, &st)->ready) {
 		spin_unlock_irqrestore(&dim_lock, flags);
 		return -EAGAIN;
 	}
@@ -255,7 +255,7 @@ static int try_start_dim_transfer(struct hdm_channel *hdm_ch)
 	buf_size = mbo->buffer_length;
 
 	BUG_ON(mbo->bus_address == 0);
-	if (!DIM_EnqueueBuffer(&hdm_ch->ch, mbo->bus_address, buf_size)) {
+	if (!dim_enqueue_buffer(&hdm_ch->ch, mbo->bus_address, buf_size)) {
 		list_del(head->next);
 		spin_unlock_irqrestore(&dim_lock, flags);
 		mbo->processed_length = 0;
@@ -340,13 +340,13 @@ static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
 
 	spin_lock_irqsave(&dim_lock, flags);
 
-	done_buffers = DIM_GetChannelState(&hdm_ch->ch, &st)->done_buffers;
+	done_buffers = dim_get_channel_state(&hdm_ch->ch, &st)->done_buffers;
 	if (!done_buffers) {
 		spin_unlock_irqrestore(&dim_lock, flags);
 		return;
 	}
 
-	if (!DIM_DetachBuffers(&hdm_ch->ch, done_buffers)) {
+	if (!dim_detach_buffers(&hdm_ch->ch, done_buffers)) {
 		spin_unlock_irqrestore(&dim_lock, flags);
 		return;
 	}
@@ -371,7 +371,6 @@ static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
 		if (hdm_ch->data_type == MOST_CH_ASYNC &&
 		    hdm_ch->direction == MOST_CH_RX &&
 		    PACKET_IS_NET_INFO(data)) {
-
 			retrieve_netinfo(dev, mbo);
 
 			spin_lock_irqsave(&dim_lock, flags);
@@ -380,7 +379,6 @@ static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
 		} else {
 			if (hdm_ch->data_type == MOST_CH_CONTROL ||
 			    hdm_ch->data_type == MOST_CH_ASYNC) {
-
 				u32 const data_size =
 					(u32)data[0] * 256 + data[1] + 2;
 
@@ -430,7 +428,7 @@ static void dim2_tasklet_fn(unsigned long data)
 			continue;
 
 		spin_lock_irqsave(&dim_lock, flags);
-		DIM_ServiceChannel(&dev->hch[ch_idx].ch);
+		dim_service_channel(&dev->hch[ch_idx].ch);
 		spin_unlock_irqrestore(&dim_lock, flags);
 
 		service_done_flag(dev, ch_idx);
@@ -454,7 +452,7 @@ static irqreturn_t dim2_ahb_isr(int irq, void *_dev)
 	unsigned long flags;
 
 	spin_lock_irqsave(&dim_lock, flags);
-	DIM_ServiceIrq(get_active_channels(dev, buffer));
+	dim_service_irq(get_active_channels(dev, buffer));
 	spin_unlock_irqrestore(&dim_lock, flags);
 
 #if !defined(ENABLE_HDM_TEST)
@@ -536,7 +534,7 @@ static int configure_channel(struct most_interface *most_iface, int ch_idx,
 
 	switch (ccfg->data_type) {
 	case MOST_CH_CONTROL:
-		new_size = DIM_NormCtrlAsyncBufferSize(buf_size);
+		new_size = dim_norm_ctrl_async_buffer_size(buf_size);
 		if (new_size == 0) {
 			pr_err("%s: too small buffer size\n", hdm_ch->name);
 			return -EINVAL;
@@ -546,11 +544,11 @@ static int configure_channel(struct most_interface *most_iface, int ch_idx,
 			pr_warn("%s: fixed buffer size (%d -> %d)\n",
 				hdm_ch->name, buf_size, new_size);
 		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = DIM_InitControl(&hdm_ch->ch, is_tx, ch_addr,
-					  buf_size);
+		hal_ret = dim_init_control(&hdm_ch->ch, is_tx, ch_addr,
+					   buf_size);
 		break;
 	case MOST_CH_ASYNC:
-		new_size = DIM_NormCtrlAsyncBufferSize(buf_size);
+		new_size = dim_norm_ctrl_async_buffer_size(buf_size);
 		if (new_size == 0) {
 			pr_err("%s: too small buffer size\n", hdm_ch->name);
 			return -EINVAL;
@@ -560,10 +558,10 @@ static int configure_channel(struct most_interface *most_iface, int ch_idx,
 			pr_warn("%s: fixed buffer size (%d -> %d)\n",
 				hdm_ch->name, buf_size, new_size);
 		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = DIM_InitAsync(&hdm_ch->ch, is_tx, ch_addr, buf_size);
+		hal_ret = dim_init_async(&hdm_ch->ch, is_tx, ch_addr, buf_size);
 		break;
 	case MOST_CH_ISOC_AVP:
-		new_size = DIM_NormIsocBufferSize(buf_size, sub_size);
+		new_size = dim_norm_isoc_buffer_size(buf_size, sub_size);
 		if (new_size == 0) {
 			pr_err("%s: invalid sub-buffer size or too small buffer size\n",
 			       hdm_ch->name);
@@ -574,10 +572,10 @@ static int configure_channel(struct most_interface *most_iface, int ch_idx,
 			pr_warn("%s: fixed buffer size (%d -> %d)\n",
 				hdm_ch->name, buf_size, new_size);
 		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = DIM_InitIsoc(&hdm_ch->ch, is_tx, ch_addr, sub_size);
+		hal_ret = dim_init_isoc(&hdm_ch->ch, is_tx, ch_addr, sub_size);
 		break;
 	case MOST_CH_SYNC:
-		new_size = DIM_NormSyncBufferSize(buf_size, sub_size);
+		new_size = dim_norm_sync_buffer_size(buf_size, sub_size);
 		if (new_size == 0) {
 			pr_err("%s: invalid sub-buffer size or too small buffer size\n",
 			       hdm_ch->name);
@@ -588,7 +586,7 @@ static int configure_channel(struct most_interface *most_iface, int ch_idx,
 			pr_warn("%s: fixed buffer size (%d -> %d)\n",
 				hdm_ch->name, buf_size, new_size);
 		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = DIM_InitSync(&hdm_ch->ch, is_tx, ch_addr, sub_size);
+		hal_ret = dim_init_sync(&hdm_ch->ch, is_tx, ch_addr, sub_size);
 		break;
 	default:
 		pr_err("%s: configure failed, bad channel type: %d\n",
@@ -708,7 +706,7 @@ static int poison_channel(struct most_interface *most_iface, int ch_idx)
 		return -EPERM;
 
 	spin_lock_irqsave(&dim_lock, flags);
-	hal_ret = DIM_DestroyChannel(&hdm_ch->ch);
+	hal_ret = dim_destroy_channel(&hdm_ch->ch);
 	hdm_ch->is_initialized = false;
 	if (ch_idx == dev->atx_idx)
 		dev->atx_idx = -1;
@@ -885,7 +883,7 @@ static int dim2_remove(struct platform_device *pdev)
 	unsigned long flags;
 
 	spin_lock_irqsave(&dim_lock, flags);
-	DIM_Shutdown();
+	dim_shutdown();
 	spin_unlock_irqrestore(&dim_lock, flags);
 
 	if (pdata && pdata->destroy)
diff --git a/drivers/staging/most/hdm-dim2/dim2_reg.h b/drivers/staging/most/hdm-dim2/dim2_reg.h
index 476f66f4c566..bcf6a79f6744 100644
--- a/drivers/staging/most/hdm-dim2/dim2_reg.h
+++ b/drivers/staging/most/hdm-dim2/dim2_reg.h
@@ -21,7 +21,6 @@
 extern "C" {
 #endif
 
-
 struct dim2_regs {
 	/* 0x00 */ u32 MLBC0;
 	/* 0x01 */ u32 rsvd0[1];
@@ -67,8 +66,7 @@ struct dim2_regs {
 	/* 0xF7 */ u32 ACMR1;
 };
 
-
-#define DIM2_MASK(n)  (~((~(u32)0)<<(n)))
+#define DIM2_MASK(n)  (~((~(u32)0) << (n)))
 
 enum {
 	MLBC0_MLBLK_BIT = 7,
@@ -168,7 +166,6 @@ enum {
 	CAT_CL_MASK = DIM2_MASK(6)
 };
 
-
 #ifdef	__cplusplus
 }
 #endif
diff --git a/drivers/staging/most/hdm-dim2/dim2_sysfs.h b/drivers/staging/most/hdm-dim2/dim2_sysfs.h
index e719691035b0..b71dd027ebc7 100644
--- a/drivers/staging/most/hdm-dim2/dim2_sysfs.h
+++ b/drivers/staging/most/hdm-dim2/dim2_sysfs.h
@@ -16,10 +16,8 @@
 #ifndef DIM2_SYSFS_H
 #define	DIM2_SYSFS_H
 
-
 #include <linux/kobject.h>
 
-
 struct medialb_bus {
 	struct kobject kobj_group;
 };
@@ -35,5 +33,4 @@ void dim2_sysfs_destroy(struct medialb_bus *bus);
  */
 bool dim2_sysfs_get_state_cb(void);
 
-
 #endif	/* DIM2_SYSFS_H */
diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 19852ca7e59c..ed1ed25b6d1d 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -1587,8 +1587,7 @@ out:
 	return 0;
 
 error:
-	if (iface->mod)
-		module_put(iface->mod);
+	module_put(iface->mod);
 	modref--;
 	mutex_unlock(&c->start_mutex);
 	return ret;
diff --git a/drivers/staging/most/mostcore/mostcore.h b/drivers/staging/most/mostcore/mostcore.h
index e148b324331a..bda3850d5435 100644
--- a/drivers/staging/most/mostcore/mostcore.h
+++ b/drivers/staging/most/mostcore/mostcore.h
@@ -60,7 +60,6 @@ enum most_channel_data_type {
 	MOST_CH_SYNC = 1 << 5,
 };
 
-
 enum mbo_status_flags {
 	/* MBO was processed successfully (data was send or received )*/
 	MBO_SUCCESS = 0,
@@ -317,5 +316,4 @@ int most_start_channel(struct most_interface *iface, int channel_idx,
 int most_stop_channel(struct most_interface *iface, int channel_idx,
 		      struct most_aim *);
 
-
 #endif /* MOST_CORE_H_ */
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 47bb56f1f8c0..197d1124733d 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -31,8 +31,8 @@
 
 static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
-	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct spinand_info *info = nand_get_controller_data(chip);
 	struct spinand_state *state = (struct spinand_state *)info->priv;
 
 	return state;
@@ -633,7 +633,7 @@ static int spinand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 	u8 *p = buf;
 	int eccsize = chip->ecc.size;
 	int eccsteps = chip->ecc.steps;
-	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct spinand_info *info = nand_get_controller_data(chip);
 
 	enable_read_hw_ecc = 1;
 
@@ -679,7 +679,7 @@ static u8 spinand_read_byte(struct mtd_info *mtd)
 
 static int spinand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct spinand_info *info = nand_get_controller_data(chip);
 
 	unsigned long timeo = jiffies;
 	int retval, state = chip->state;
@@ -744,8 +744,8 @@ static void spinand_reset(struct spi_device *spi_nand)
 static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			    int column, int page)
 {
-	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
-	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct spinand_info *info = nand_get_controller_data(chip);
 	struct spinand_state *state = (struct spinand_state *)info->priv;
 
 	switch (command) {
@@ -850,7 +850,6 @@ static int spinand_probe(struct spi_device *spi_nand)
 	struct nand_chip *chip;
 	struct spinand_info *info;
 	struct spinand_state *state;
-	struct mtd_part_parser_data ppdata;
 
 	info  = devm_kzalloc(&spi_nand->dev, sizeof(struct spinand_info),
 			     GFP_KERNEL);
@@ -894,7 +893,8 @@ static int spinand_probe(struct spi_device *spi_nand)
 		pr_info("%s: disable ecc failed!\n", __func__);
 #endif
 
-	chip->priv	= info;
+	nand_set_flash_node(chip, spi_nand->dev.of_node);
+	nand_set_controller_data(chip, info);
 	chip->read_buf	= spinand_read_buf;
 	chip->write_buf	= spinand_write_buf;
 	chip->read_byte	= spinand_read_byte;
@@ -903,21 +903,17 @@ static int spinand_probe(struct spi_device *spi_nand)
 	chip->options	|= NAND_CACHEPRG;
 	chip->select_chip = spinand_select_chip;
 
-	mtd = devm_kzalloc(&spi_nand->dev, sizeof(struct mtd_info), GFP_KERNEL);
-	if (!mtd)
-		return -ENOMEM;
+	mtd = nand_to_mtd(chip);
 
 	dev_set_drvdata(&spi_nand->dev, mtd);
 
-	mtd->priv = chip;
 	mtd->dev.parent = &spi_nand->dev;
 	mtd->oobsize = 64;
 
 	if (nand_scan(mtd, 1))
 		return -ENXIO;
 
-	ppdata.of_node = spi_nand->dev.of_node;
-	return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+	return mtd_device_register(mtd, NULL, 0);
 }
 
 /*
diff --git a/drivers/staging/nvec/README b/drivers/staging/nvec/README
index 9a320b7fdbe6..0e2d5c4c875f 100644
--- a/drivers/staging/nvec/README
+++ b/drivers/staging/nvec/README
@@ -1,4 +1,4 @@
-NVEC: An NVidia compliant Embedded Controller Protocol Implemenation
+NVEC: An NVidia compliant Embedded Controller Protocol Implementation
 
 This is an implementation of the NVEC protocol used to communicate with an
 embedded controller (EC) via I2C bus. The EC is an I2C master while the host
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 802c9597d421..4ae44a5168f9 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -40,18 +40,18 @@
 #include "nvec.h"
 
 #define I2C_CNFG			0x00
-#define I2C_CNFG_PACKET_MODE_EN		(1<<10)
-#define I2C_CNFG_NEW_MASTER_SFM		(1<<11)
+#define I2C_CNFG_PACKET_MODE_EN		(1 << 10)
+#define I2C_CNFG_NEW_MASTER_SFM		(1 << 11)
 #define I2C_CNFG_DEBOUNCE_CNT_SHIFT	12
 
 #define I2C_SL_CNFG		0x20
-#define I2C_SL_NEWSL		(1<<2)
-#define I2C_SL_NACK		(1<<1)
-#define I2C_SL_RESP		(1<<0)
-#define I2C_SL_IRQ		(1<<3)
-#define END_TRANS		(1<<4)
-#define RCVD			(1<<2)
-#define RNW			(1<<1)
+#define I2C_SL_NEWSL		(1 << 2)
+#define I2C_SL_NACK		(1 << 1)
+#define I2C_SL_RESP		(1 << 0)
+#define I2C_SL_IRQ		(1 << 3)
+#define END_TRANS		(1 << 4)
+#define RCVD			(1 << 2)
+#define RNW			(1 << 1)
 
 #define I2C_SL_RCVD		0x24
 #define I2C_SL_STATUS		0x28
@@ -740,7 +740,7 @@ static void tegra_init_i2c_slave(struct nvec_chip *nvec)
 	writel(I2C_SL_NEWSL, nvec->base + I2C_SL_CNFG);
 	writel(0x1E, nvec->base + I2C_SL_DELAY_COUNT);
 
-	writel(nvec->i2c_addr>>1, nvec->base + I2C_SL_ADDR1);
+	writel(nvec->i2c_addr >> 1, nvec->base + I2C_SL_ADDR1);
 	writel(0, nvec->base + I2C_SL_ADDR2);
 
 	enable_irq(nvec->irq);
diff --git a/drivers/staging/octeon/ethernet-defines.h b/drivers/staging/octeon/ethernet-defines.h
index 13e4cee1f86d..07bd2b87f6a0 100644
--- a/drivers/staging/octeon/ethernet-defines.h
+++ b/drivers/staging/octeon/ethernet-defines.h
@@ -40,6 +40,6 @@
 #define FAU_TOTAL_TX_TO_CLEAN (CVMX_FAU_REG_END - sizeof(u32))
 #define FAU_NUM_PACKET_BUFFERS_TO_FREE (FAU_TOTAL_TX_TO_CLEAN - sizeof(u32))
 
-#define TOTAL_NUMBER_OF_PORTS       (CVMX_PIP_NUM_INPUT_PORTS+1)
+#define TOTAL_NUMBER_OF_PORTS       (CVMX_PIP_NUM_INPUT_PORTS + 1)
 
 #endif /* __ETHERNET_DEFINES_H__ */
diff --git a/drivers/staging/rdma/amso1100/c2.c b/drivers/staging/rdma/amso1100/c2.c
index 35ac536b2d45..b46ebd1ae15a 100644
--- a/drivers/staging/rdma/amso1100/c2.c
+++ b/drivers/staging/rdma/amso1100/c2.c
@@ -87,11 +87,6 @@ static struct pci_device_id c2_pci_table[] = {
 
 MODULE_DEVICE_TABLE(pci, c2_pci_table);
 
-static void c2_print_macaddr(struct net_device *netdev)
-{
-	pr_debug("%s: MAC %pM, IRQ %u\n", netdev->name, netdev->dev_addr, netdev->irq);
-}
-
 static void c2_set_rxbufsize(struct c2_port *c2_port)
 {
 	struct net_device *netdev = c2_port->netdev;
@@ -116,7 +111,8 @@ static int c2_tx_ring_alloc(struct c2_ring *tx_ring, void *vaddr,
 	struct c2_element *elem;
 	int i;
 
-	tx_ring->start = kmalloc(sizeof(*elem) * tx_ring->count, GFP_KERNEL);
+	tx_ring->start = kmalloc_array(tx_ring->count, sizeof(*elem),
+				       GFP_KERNEL);
 	if (!tx_ring->start)
 		return -ENOMEM;
 
@@ -165,7 +161,8 @@ static int c2_rx_ring_alloc(struct c2_ring *rx_ring, void *vaddr,
 	struct c2_element *elem;
 	int i;
 
-	rx_ring->start = kmalloc(sizeof(*elem) * rx_ring->count, GFP_KERNEL);
+	rx_ring->start = kmalloc_array(rx_ring->count, sizeof(*elem),
+				       GFP_KERNEL);
 	if (!rx_ring->start)
 		return -ENOMEM;
 
@@ -908,7 +905,8 @@ static struct net_device *c2_devinit(struct c2_dev *c2dev,
 	/* Validate the MAC address */
 	if (!is_valid_ether_addr(netdev->dev_addr)) {
 		pr_debug("Invalid MAC Address\n");
-		c2_print_macaddr(netdev);
+		pr_debug("%s: MAC %pM, IRQ %u\n", netdev->name,
+			 netdev->dev_addr, netdev->irq);
 		free_netdev(netdev);
 		return NULL;
 	}
@@ -1142,7 +1140,8 @@ static int c2_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 	}
 
 	/* Print out the MAC address */
-	c2_print_macaddr(netdev);
+	pr_debug("%s: MAC %pM, IRQ %u\n", netdev->name, netdev->dev_addr,
+		 netdev->irq);
 
 	ret = c2_rnic_init(c2dev);
 	if (ret) {
diff --git a/drivers/staging/rdma/amso1100/c2.h b/drivers/staging/rdma/amso1100/c2.h
index d619d735838b..21b565a91fd6 100644
--- a/drivers/staging/rdma/amso1100/c2.h
+++ b/drivers/staging/rdma/amso1100/c2.h
@@ -476,72 +476,72 @@ static inline int c2_errno(void *reply)
 }
 
 /* Device */
-extern int c2_register_device(struct c2_dev *c2dev);
-extern void c2_unregister_device(struct c2_dev *c2dev);
-extern int c2_rnic_init(struct c2_dev *c2dev);
-extern void c2_rnic_term(struct c2_dev *c2dev);
-extern void c2_rnic_interrupt(struct c2_dev *c2dev);
-extern int c2_del_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask);
-extern int c2_add_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask);
+int c2_register_device(struct c2_dev *c2dev);
+void c2_unregister_device(struct c2_dev *c2dev);
+int c2_rnic_init(struct c2_dev *c2dev);
+void c2_rnic_term(struct c2_dev *c2dev);
+void c2_rnic_interrupt(struct c2_dev *c2dev);
+int c2_del_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask);
+int c2_add_addr(struct c2_dev *c2dev, __be32 inaddr, __be32 inmask);
 
 /* QPs */
-extern int c2_alloc_qp(struct c2_dev *c2dev, struct c2_pd *pd,
+int c2_alloc_qp(struct c2_dev *c2dev, struct c2_pd *pd,
 		       struct ib_qp_init_attr *qp_attrs, struct c2_qp *qp);
-extern void c2_free_qp(struct c2_dev *c2dev, struct c2_qp *qp);
-extern struct ib_qp *c2_get_qp(struct ib_device *device, int qpn);
-extern int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
+void c2_free_qp(struct c2_dev *c2dev, struct c2_qp *qp);
+struct ib_qp *c2_get_qp(struct ib_device *device, int qpn);
+int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
 			struct ib_qp_attr *attr, int attr_mask);
-extern int c2_qp_set_read_limits(struct c2_dev *c2dev, struct c2_qp *qp,
+int c2_qp_set_read_limits(struct c2_dev *c2dev, struct c2_qp *qp,
 				 int ord, int ird);
-extern int c2_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
+int c2_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
 			struct ib_send_wr **bad_wr);
-extern int c2_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr,
+int c2_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr,
 			   struct ib_recv_wr **bad_wr);
-extern void c2_init_qp_table(struct c2_dev *c2dev);
-extern void c2_cleanup_qp_table(struct c2_dev *c2dev);
-extern void c2_set_qp_state(struct c2_qp *, int);
-extern struct c2_qp *c2_find_qpn(struct c2_dev *c2dev, int qpn);
+void c2_init_qp_table(struct c2_dev *c2dev);
+void c2_cleanup_qp_table(struct c2_dev *c2dev);
+void c2_set_qp_state(struct c2_qp *, int);
+struct c2_qp *c2_find_qpn(struct c2_dev *c2dev, int qpn);
 
 /* PDs */
-extern int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd);
-extern void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd);
-extern int c2_init_pd_table(struct c2_dev *c2dev);
-extern void c2_cleanup_pd_table(struct c2_dev *c2dev);
+int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd);
+void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd);
+int c2_init_pd_table(struct c2_dev *c2dev);
+void c2_cleanup_pd_table(struct c2_dev *c2dev);
 
 /* CQs */
-extern int c2_init_cq(struct c2_dev *c2dev, int entries,
+int c2_init_cq(struct c2_dev *c2dev, int entries,
 		      struct c2_ucontext *ctx, struct c2_cq *cq);
-extern void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq);
-extern void c2_cq_event(struct c2_dev *c2dev, u32 mq_index);
-extern void c2_cq_clean(struct c2_dev *c2dev, struct c2_qp *qp, u32 mq_index);
-extern int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
-extern int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
+void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq);
+void c2_cq_event(struct c2_dev *c2dev, u32 mq_index);
+void c2_cq_clean(struct c2_dev *c2dev, struct c2_qp *qp, u32 mq_index);
+int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
+int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
 
 /* CM */
-extern int c2_llp_connect(struct iw_cm_id *cm_id,
+int c2_llp_connect(struct iw_cm_id *cm_id,
 			  struct iw_cm_conn_param *iw_param);
-extern int c2_llp_accept(struct iw_cm_id *cm_id,
+int c2_llp_accept(struct iw_cm_id *cm_id,
 			 struct iw_cm_conn_param *iw_param);
-extern int c2_llp_reject(struct iw_cm_id *cm_id, const void *pdata,
+int c2_llp_reject(struct iw_cm_id *cm_id, const void *pdata,
 			 u8 pdata_len);
-extern int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog);
-extern int c2_llp_service_destroy(struct iw_cm_id *cm_id);
+int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog);
+int c2_llp_service_destroy(struct iw_cm_id *cm_id);
 
 /* MM */
-extern int c2_nsmr_register_phys_kern(struct c2_dev *c2dev, u64 *addr_list,
+int c2_nsmr_register_phys_kern(struct c2_dev *c2dev, u64 *addr_list,
  				      int page_size, int pbl_depth, u32 length,
  				      u32 off, u64 *va, enum c2_acf acf,
 				      struct c2_mr *mr);
-extern int c2_stag_dealloc(struct c2_dev *c2dev, u32 stag_index);
+int c2_stag_dealloc(struct c2_dev *c2dev, u32 stag_index);
 
 /* AE */
-extern void c2_ae_event(struct c2_dev *c2dev, u32 mq_index);
+void c2_ae_event(struct c2_dev *c2dev, u32 mq_index);
 
 /* MQSP Allocator */
-extern int c2_init_mqsp_pool(struct c2_dev *c2dev, gfp_t gfp_mask,
+int c2_init_mqsp_pool(struct c2_dev *c2dev, gfp_t gfp_mask,
 			     struct sp_chunk **root);
-extern void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root);
-extern __be16 *c2_alloc_mqsp(struct c2_dev *c2dev, struct sp_chunk *head,
+void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root);
+__be16 *c2_alloc_mqsp(struct c2_dev *c2dev, struct sp_chunk *head,
 			     dma_addr_t *dma_addr, gfp_t gfp_mask);
-extern void c2_free_mqsp(__be16* mqsp);
+void c2_free_mqsp(__be16* mqsp);
 #endif
diff --git a/drivers/staging/rdma/amso1100/c2_mq.h b/drivers/staging/rdma/amso1100/c2_mq.h
index fc1b9a7cec4b..8e1b4d13409e 100644
--- a/drivers/staging/rdma/amso1100/c2_mq.h
+++ b/drivers/staging/rdma/amso1100/c2_mq.h
@@ -93,14 +93,14 @@ static __inline__ int c2_mq_full(struct c2_mq *q)
 	return q->priv == (be16_to_cpu(*q->shared) + q->q_size - 1) % q->q_size;
 }
 
-extern void c2_mq_lconsume(struct c2_mq *q, u32 wqe_count);
-extern void *c2_mq_alloc(struct c2_mq *q);
-extern void c2_mq_produce(struct c2_mq *q);
-extern void *c2_mq_consume(struct c2_mq *q);
-extern void c2_mq_free(struct c2_mq *q);
-extern void c2_mq_req_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size,
+void c2_mq_lconsume(struct c2_mq *q, u32 wqe_count);
+void *c2_mq_alloc(struct c2_mq *q);
+void c2_mq_produce(struct c2_mq *q);
+void *c2_mq_consume(struct c2_mq *q);
+void c2_mq_free(struct c2_mq *q);
+void c2_mq_req_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size,
 		       u8 __iomem *pool_start, u16 __iomem *peer, u32 type);
-extern void c2_mq_rep_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size,
+void c2_mq_rep_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size,
 			   u8 *pool_start, u16 __iomem *peer, u32 type);
 
 #endif				/* _C2_MQ_H_ */
diff --git a/drivers/staging/rdma/amso1100/c2_provider.c b/drivers/staging/rdma/amso1100/c2_provider.c
index c707e45887c2..a092ac743c72 100644
--- a/drivers/staging/rdma/amso1100/c2_provider.c
+++ b/drivers/staging/rdma/amso1100/c2_provider.c
@@ -620,12 +620,9 @@ static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param)
 
 static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
 {
-	int err;
-
 	pr_debug("%s:%u\n", __func__, __LINE__);
 
-	err = c2_llp_reject(cm_id, pdata, pdata_len);
-	return err;
+	return c2_llp_reject(cm_id, pdata, pdata_len);
 }
 
 static int c2_service_create(struct iw_cm_id *cm_id, int backlog)
@@ -642,12 +639,9 @@ static int c2_service_create(struct iw_cm_id *cm_id, int backlog)
 
 static int c2_service_destroy(struct iw_cm_id *cm_id)
 {
-	int err;
 	pr_debug("%s:%u\n", __func__, __LINE__);
 
-	err = c2_llp_service_destroy(cm_id);
-
-	return err;
+	return c2_llp_service_destroy(cm_id);
 }
 
 static int c2_pseudo_up(struct net_device *netdev)
diff --git a/drivers/staging/rdma/amso1100/c2_rnic.c b/drivers/staging/rdma/amso1100/c2_rnic.c
index d3c0f77767d9..5e65c6d07ca4 100644
--- a/drivers/staging/rdma/amso1100/c2_rnic.c
+++ b/drivers/staging/rdma/amso1100/c2_rnic.c
@@ -81,7 +81,6 @@
 static int c2_adapter_init(struct c2_dev *c2dev)
 {
 	struct c2wr_init_req wr;
-	int err;
 
 	memset(&wr, 0, sizeof(wr));
 	c2_wr_set_id(&wr, CCWR_INIT);
@@ -94,9 +93,7 @@ static int c2_adapter_init(struct c2_dev *c2dev)
 	wr.q2_host_msg_pool = cpu_to_be64(c2dev->aeq.host_dma);
 
 	/* Post the init message */
-	err = vq_send_wr(c2dev, (union c2wr *) & wr);
-
-	return err;
+	return vq_send_wr(c2dev, (union c2wr *) & wr);
 }
 
 /*
diff --git a/drivers/staging/rdma/amso1100/c2_vq.h b/drivers/staging/rdma/amso1100/c2_vq.h
index 33805627a607..c1f6cef60213 100644
--- a/drivers/staging/rdma/amso1100/c2_vq.h
+++ b/drivers/staging/rdma/amso1100/c2_vq.h
@@ -47,17 +47,17 @@ struct c2_vq_req {
 	struct c2_qp *qp;
 };
 
-extern int vq_init(struct c2_dev *c2dev);
-extern void vq_term(struct c2_dev *c2dev);
+int vq_init(struct c2_dev *c2dev);
+void vq_term(struct c2_dev *c2dev);
 
-extern struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev);
-extern void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *req);
-extern void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *req);
-extern void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *req);
-extern int vq_send_wr(struct c2_dev *c2dev, union c2wr * wr);
+struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev);
+void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *req);
+void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *req);
+void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *req);
+int vq_send_wr(struct c2_dev *c2dev, union c2wr * wr);
 
-extern void *vq_repbuf_alloc(struct c2_dev *c2dev);
-extern void vq_repbuf_free(struct c2_dev *c2dev, void *reply);
+void *vq_repbuf_alloc(struct c2_dev *c2dev);
+void vq_repbuf_free(struct c2_dev *c2dev, void *reply);
 
-extern int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req);
+int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req);
 #endif				/* _C2_VQ_H_ */
diff --git a/drivers/staging/rdma/ehca/ehca_av.c b/drivers/staging/rdma/ehca/ehca_av.c
index 465926319f3d..94e088c2d989 100644
--- a/drivers/staging/rdma/ehca/ehca_av.c
+++ b/drivers/staging/rdma/ehca/ehca_av.c
@@ -105,6 +105,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
 
 	if (ehca_static_rate < 0) {
 		u32 ipd;
+
 		if (ehca_calc_ipd(shca, ah_attr->port_num,
 				  ah_attr->static_rate, &ipd)) {
 			ret = -EINVAL;
@@ -128,6 +129,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
 		int rc;
 		struct ib_port_attr port_attr;
 		union ib_gid gid;
+
 		memset(&port_attr, 0, sizeof(port_attr));
 		rc = ehca_query_port(pd->device, ah_attr->port_num,
 				     &port_attr);
@@ -192,6 +194,7 @@ int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
 		int rc;
 		struct ib_port_attr port_attr;
 		union ib_gid gid;
+
 		memset(&port_attr, 0, sizeof(port_attr));
 		rc = ehca_query_port(ah->device, ah_attr->port_num,
 				     &port_attr);
@@ -272,6 +275,5 @@ int ehca_init_av_cache(void)
 
 void ehca_cleanup_av_cache(void)
 {
-	if (av_cache)
-		kmem_cache_destroy(av_cache);
+	kmem_cache_destroy(av_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_cq.c b/drivers/staging/rdma/ehca/ehca_cq.c
index ea1b5c1203b4..1aa7931fe860 100644
--- a/drivers/staging/rdma/ehca/ehca_cq.c
+++ b/drivers/staging/rdma/ehca/ehca_cq.c
@@ -393,6 +393,5 @@ int ehca_init_cq_cache(void)
 
 void ehca_cleanup_cq_cache(void)
 {
-	if (cq_cache)
-		kmem_cache_destroy(cq_cache);
+	kmem_cache_destroy(cq_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_main.c b/drivers/staging/rdma/ehca/ehca_main.c
index 8246418cd4e0..860b974e9faa 100644
--- a/drivers/staging/rdma/ehca/ehca_main.c
+++ b/drivers/staging/rdma/ehca/ehca_main.c
@@ -245,8 +245,7 @@ static void ehca_destroy_slab_caches(void)
 	ehca_cleanup_cq_cache();
 	ehca_cleanup_pd_cache();
 #ifdef CONFIG_PPC_64K_PAGES
-	if (ctblk_cache)
-		kmem_cache_destroy(ctblk_cache);
+	kmem_cache_destroy(ctblk_cache);
 #endif
 }
 
diff --git a/drivers/staging/rdma/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c
index f914b30999f8..553e883a5718 100644
--- a/drivers/staging/rdma/ehca/ehca_mrmw.c
+++ b/drivers/staging/rdma/ehca/ehca_mrmw.c
@@ -2251,10 +2251,8 @@ int ehca_init_mrmw_cache(void)
 
 void ehca_cleanup_mrmw_cache(void)
 {
-	if (mr_cache)
-		kmem_cache_destroy(mr_cache);
-	if (mw_cache)
-		kmem_cache_destroy(mw_cache);
+	kmem_cache_destroy(mr_cache);
+	kmem_cache_destroy(mw_cache);
 }
 
 static inline int ehca_init_top_bmap(struct ehca_top_bmap *ehca_top_bmap,
diff --git a/drivers/staging/rdma/ehca/ehca_pd.c b/drivers/staging/rdma/ehca/ehca_pd.c
index 351577a6670a..2a8aae411941 100644
--- a/drivers/staging/rdma/ehca/ehca_pd.c
+++ b/drivers/staging/rdma/ehca/ehca_pd.c
@@ -119,6 +119,5 @@ int ehca_init_pd_cache(void)
 
 void ehca_cleanup_pd_cache(void)
 {
-	if (pd_cache)
-		kmem_cache_destroy(pd_cache);
+	kmem_cache_destroy(pd_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_qp.c b/drivers/staging/rdma/ehca/ehca_qp.c
index 2e89356c46fa..896c01f810f6 100644
--- a/drivers/staging/rdma/ehca/ehca_qp.c
+++ b/drivers/staging/rdma/ehca/ehca_qp.c
@@ -2252,6 +2252,5 @@ int ehca_init_qp_cache(void)
 
 void ehca_cleanup_qp_cache(void)
 {
-	if (qp_cache)
-		kmem_cache_destroy(qp_cache);
+	kmem_cache_destroy(qp_cache);
 }
diff --git a/drivers/staging/rdma/hfi1/Makefile b/drivers/staging/rdma/hfi1/Makefile
index 2e5daa6cdcc2..68c5a315e557 100644
--- a/drivers/staging/rdma/hfi1/Makefile
+++ b/drivers/staging/rdma/hfi1/Makefile
@@ -7,7 +7,7 @@
 #
 obj-$(CONFIG_INFINIBAND_HFI1) += hfi1.o
 
-hfi1-y := chip.o cq.o device.o diag.o dma.o driver.o eprom.o file_ops.o firmware.o \
+hfi1-y := chip.o cq.o device.o diag.o dma.o driver.o efivar.o eprom.o file_ops.o firmware.o \
 	init.o intr.o keys.o mad.o mmap.o mr.o pcie.o pio.o pio_copy.o \
 	qp.o qsfp.o rc.o ruc.o sdma.o srq.o sysfs.o trace.o twsi.o \
 	uc.o ud.o user_pages.o user_sdma.o verbs_mcast.o verbs.o
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c
index e48981994b10..bbe5ad85cec0 100644
--- a/drivers/staging/rdma/hfi1/chip.c
+++ b/drivers/staging/rdma/hfi1/chip.c
@@ -63,6 +63,7 @@
 #include "pio.h"
 #include "sdma.h"
 #include "eprom.h"
+#include "efivar.h"
 
 #define NUM_IB_PORTS 1
 
@@ -121,8 +122,8 @@ struct flag_table {
 #define SEC_SC_HALTED		0x4	/* per-context only */
 #define SEC_SPC_FREEZE		0x8	/* per-HFI only */
 
-#define VL15CTXT                  1
 #define MIN_KERNEL_KCTXTS         2
+#define FIRST_KERNEL_KCTXT        1
 #define NUM_MAP_REGS             32
 
 /* Bit offset into the GUID which carries HFI id information */
@@ -663,7 +664,7 @@ static struct flag_table egress_err_info_flags[] = {
  */
 #define SES(name) SEND_ERR_STATUS_SEND_##name##_ERR_SMASK
 static struct flag_table send_err_status_flags[] = {
-/* 0*/	FLAG_ENTRY0("SDmaRpyTagErr", SES(CSR_PARITY)),
+/* 0*/	FLAG_ENTRY0("SendCsrParityErr", SES(CSR_PARITY)),
 /* 1*/	FLAG_ENTRY0("SendCsrReadBadAddrErr", SES(CSR_READ_BAD_ADDR)),
 /* 2*/	FLAG_ENTRY0("SendCsrWriteBadAddrErr", SES(CSR_WRITE_BAD_ADDR))
 };
@@ -1417,6 +1418,17 @@ static u64 access_sw_link_up_cnt(const struct cntr_entry *entry, void *context,
 	return read_write_sw(ppd->dd, &ppd->link_up, mode, data);
 }
 
+static u64 access_sw_unknown_frame_cnt(const struct cntr_entry *entry,
+				       void *context, int vl, int mode,
+				       u64 data)
+{
+	struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)context;
+
+	if (vl != CNTR_INVALID_VL)
+		return 0;
+	return read_write_sw(ppd->dd, &ppd->unknown_frame_count, mode, data);
+}
+
 static u64 access_sw_xmit_discards(const struct cntr_entry *entry,
 				    void *context, int vl, int mode, u64 data)
 {
@@ -1538,6 +1550,2336 @@ static u64 access_sw_send_schedule(const struct cntr_entry *entry,
 	return dd->verbs_dev.n_send_schedule;
 }
 
+/* Software counters for the error status bits within MISC_ERR_STATUS */
+static u64 access_misc_pll_lock_fail_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[12];
+}
+
+static u64 access_misc_mbist_fail_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[11];
+}
+
+static u64 access_misc_invalid_eep_cmd_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[10];
+}
+
+static u64 access_misc_efuse_done_parity_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[9];
+}
+
+static u64 access_misc_efuse_write_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[8];
+}
+
+static u64 access_misc_efuse_read_bad_addr_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[7];
+}
+
+static u64 access_misc_efuse_csr_parity_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[6];
+}
+
+static u64 access_misc_fw_auth_failed_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[5];
+}
+
+static u64 access_misc_key_mismatch_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[4];
+}
+
+static u64 access_misc_sbus_write_failed_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[3];
+}
+
+static u64 access_misc_csr_write_bad_addr_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[2];
+}
+
+static u64 access_misc_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[1];
+}
+
+static u64 access_misc_csr_parity_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->misc_err_status_cnt[0];
+}
+
+/*
+ * Software counter for the aggregate of
+ * individual CceErrStatus counters
+ */
+static u64 access_sw_cce_err_status_aggregated_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_cce_err_status_aggregate;
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within CceErrStatus
+ */
+static u64 access_cce_msix_csr_parity_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[40];
+}
+
+static u64 access_cce_int_map_unc_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[39];
+}
+
+static u64 access_cce_int_map_cor_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[38];
+}
+
+static u64 access_cce_msix_table_unc_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[37];
+}
+
+static u64 access_cce_msix_table_cor_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[36];
+}
+
+static u64 access_cce_rxdma_conv_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[35];
+}
+
+static u64 access_cce_rcpl_async_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[34];
+}
+
+static u64 access_cce_seg_write_bad_addr_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[33];
+}
+
+static u64 access_cce_seg_read_bad_addr_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl, int mode,
+						u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[32];
+}
+
+static u64 access_la_triggered_cnt(const struct cntr_entry *entry,
+				   void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[31];
+}
+
+static u64 access_cce_trgt_cpl_timeout_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[30];
+}
+
+static u64 access_pcic_receive_parity_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[29];
+}
+
+static u64 access_pcic_transmit_back_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[28];
+}
+
+static u64 access_pcic_transmit_front_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[27];
+}
+
+static u64 access_pcic_cpl_dat_q_unc_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[26];
+}
+
+static u64 access_pcic_cpl_hd_q_unc_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[25];
+}
+
+static u64 access_pcic_post_dat_q_unc_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[24];
+}
+
+static u64 access_pcic_post_hd_q_unc_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[23];
+}
+
+static u64 access_pcic_retry_sot_mem_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[22];
+}
+
+static u64 access_pcic_retry_mem_unc_err(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[21];
+}
+
+static u64 access_pcic_n_post_dat_q_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[20];
+}
+
+static u64 access_pcic_n_post_h_q_parity_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[19];
+}
+
+static u64 access_pcic_cpl_dat_q_cor_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[18];
+}
+
+static u64 access_pcic_cpl_hd_q_cor_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[17];
+}
+
+static u64 access_pcic_post_dat_q_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[16];
+}
+
+static u64 access_pcic_post_hd_q_cor_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[15];
+}
+
+static u64 access_pcic_retry_sot_mem_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[14];
+}
+
+static u64 access_pcic_retry_mem_cor_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[13];
+}
+
+static u64 access_cce_cli1_async_fifo_dbg_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[12];
+}
+
+static u64 access_cce_cli1_async_fifo_rxdma_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[11];
+}
+
+static u64 access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[10];
+}
+
+static u64 access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[9];
+}
+
+static u64 access_cce_cli2_async_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[8];
+}
+
+static u64 access_cce_csr_cfg_bus_parity_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[7];
+}
+
+static u64 access_cce_cli0_async_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[6];
+}
+
+static u64 access_cce_rspd_data_parity_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[5];
+}
+
+static u64 access_cce_trgt_access_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[4];
+}
+
+static u64 access_cce_trgt_async_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[3];
+}
+
+static u64 access_cce_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[2];
+}
+
+static u64 access_cce_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[1];
+}
+
+static u64 access_ccs_csr_parity_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->cce_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within RcvErrStatus
+ */
+static u64 access_rx_csr_parity_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[63];
+}
+
+static u64 access_rx_csr_write_bad_addr_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[62];
+}
+
+static u64 access_rx_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[61];
+}
+
+static u64 access_rx_dma_csr_unc_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[60];
+}
+
+static u64 access_rx_dma_dq_fsm_encoding_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[59];
+}
+
+static u64 access_rx_dma_eq_fsm_encoding_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[58];
+}
+
+static u64 access_rx_dma_csr_parity_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[57];
+}
+
+static u64 access_rx_rbuf_data_cor_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[56];
+}
+
+static u64 access_rx_rbuf_data_unc_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[55];
+}
+
+static u64 access_rx_dma_data_fifo_rd_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[54];
+}
+
+static u64 access_rx_dma_data_fifo_rd_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[53];
+}
+
+static u64 access_rx_dma_hdr_fifo_rd_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[52];
+}
+
+static u64 access_rx_dma_hdr_fifo_rd_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[51];
+}
+
+static u64 access_rx_rbuf_desc_part2_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[50];
+}
+
+static u64 access_rx_rbuf_desc_part2_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[49];
+}
+
+static u64 access_rx_rbuf_desc_part1_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[48];
+}
+
+static u64 access_rx_rbuf_desc_part1_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[47];
+}
+
+static u64 access_rx_hq_intr_fsm_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[46];
+}
+
+static u64 access_rx_hq_intr_csr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[45];
+}
+
+static u64 access_rx_lookup_csr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[44];
+}
+
+static u64 access_rx_lookup_rcv_array_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[43];
+}
+
+static u64 access_rx_lookup_rcv_array_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[42];
+}
+
+static u64 access_rx_lookup_des_part2_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[41];
+}
+
+static u64 access_rx_lookup_des_part1_unc_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[40];
+}
+
+static u64 access_rx_lookup_des_part1_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[39];
+}
+
+static u64 access_rx_rbuf_next_free_buf_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[38];
+}
+
+static u64 access_rx_rbuf_next_free_buf_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[37];
+}
+
+static u64 access_rbuf_fl_init_wr_addr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[36];
+}
+
+static u64 access_rx_rbuf_fl_initdone_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[35];
+}
+
+static u64 access_rx_rbuf_fl_write_addr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[34];
+}
+
+static u64 access_rx_rbuf_fl_rd_addr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[33];
+}
+
+static u64 access_rx_rbuf_empty_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[32];
+}
+
+static u64 access_rx_rbuf_full_err_cnt(const struct cntr_entry *entry,
+				       void *context, int vl, int mode,
+				       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[31];
+}
+
+static u64 access_rbuf_bad_lookup_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[30];
+}
+
+static u64 access_rbuf_ctx_id_parity_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[29];
+}
+
+static u64 access_rbuf_csr_qeopdw_parity_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[28];
+}
+
+static u64 access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[27];
+}
+
+static u64 access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[26];
+}
+
+static u64 access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[25];
+}
+
+static u64 access_rx_rbuf_csr_q_vld_bit_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[24];
+}
+
+static u64 access_rx_rbuf_csr_q_next_buf_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[23];
+}
+
+static u64 access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[22];
+}
+
+static u64 access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[21];
+}
+
+static u64 access_rx_rbuf_block_list_read_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[20];
+}
+
+static u64 access_rx_rbuf_block_list_read_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[19];
+}
+
+static u64 access_rx_rbuf_lookup_des_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[18];
+}
+
+static u64 access_rx_rbuf_lookup_des_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[17];
+}
+
+static u64 access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[16];
+}
+
+static u64 access_rx_rbuf_lookup_des_reg_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[15];
+}
+
+static u64 access_rx_rbuf_free_list_cor_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[14];
+}
+
+static u64 access_rx_rbuf_free_list_unc_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[13];
+}
+
+static u64 access_rx_rcv_fsm_encoding_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[12];
+}
+
+static u64 access_rx_dma_flag_cor_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[11];
+}
+
+static u64 access_rx_dma_flag_unc_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[10];
+}
+
+static u64 access_rx_dc_sop_eop_parity_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[9];
+}
+
+static u64 access_rx_rcv_csr_parity_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[8];
+}
+
+static u64 access_rx_rcv_qp_map_table_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[7];
+}
+
+static u64 access_rx_rcv_qp_map_table_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[6];
+}
+
+static u64 access_rx_rcv_data_cor_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[5];
+}
+
+static u64 access_rx_rcv_data_unc_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[4];
+}
+
+static u64 access_rx_rcv_hdr_cor_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[3];
+}
+
+static u64 access_rx_rcv_hdr_unc_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[2];
+}
+
+static u64 access_rx_dc_intf_parity_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[1];
+}
+
+static u64 access_rx_dma_csr_cor_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->rcv_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendPioErrStatus
+ */
+static u64 access_pio_pec_sop_head_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[35];
+}
+
+static u64 access_pio_pcc_sop_head_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[34];
+}
+
+static u64 access_pio_last_returned_cnt_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[33];
+}
+
+static u64 access_pio_current_free_cnt_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[32];
+}
+
+static u64 access_pio_reserved_31_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[31];
+}
+
+static u64 access_pio_reserved_30_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[30];
+}
+
+static u64 access_pio_ppmc_sop_len_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[29];
+}
+
+static u64 access_pio_ppmc_bqc_mem_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[28];
+}
+
+static u64 access_pio_vl_fifo_parity_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[27];
+}
+
+static u64 access_pio_vlf_sop_parity_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[26];
+}
+
+static u64 access_pio_vlf_v1_len_parity_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[25];
+}
+
+static u64 access_pio_block_qw_count_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[24];
+}
+
+static u64 access_pio_write_qw_valid_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[23];
+}
+
+static u64 access_pio_state_machine_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[22];
+}
+
+static u64 access_pio_write_data_parity_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[21];
+}
+
+static u64 access_pio_host_addr_mem_cor_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[20];
+}
+
+static u64 access_pio_host_addr_mem_unc_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[19];
+}
+
+static u64 access_pio_pkt_evict_sm_or_arb_sm_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[18];
+}
+
+static u64 access_pio_init_sm_in_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[17];
+}
+
+static u64 access_pio_ppmc_pbl_fifo_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[16];
+}
+
+static u64 access_pio_credit_ret_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[15];
+}
+
+static u64 access_pio_v1_len_mem_bank1_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[14];
+}
+
+static u64 access_pio_v1_len_mem_bank0_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[13];
+}
+
+static u64 access_pio_v1_len_mem_bank1_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[12];
+}
+
+static u64 access_pio_v1_len_mem_bank0_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[11];
+}
+
+static u64 access_pio_sm_pkt_reset_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[10];
+}
+
+static u64 access_pio_pkt_evict_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[9];
+}
+
+static u64 access_pio_sbrdctrl_crrel_fifo_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[8];
+}
+
+static u64 access_pio_sbrdctl_crrel_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[7];
+}
+
+static u64 access_pio_pec_fifo_parity_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[6];
+}
+
+static u64 access_pio_pcc_fifo_parity_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[5];
+}
+
+static u64 access_pio_sb_mem_fifo1_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[4];
+}
+
+static u64 access_pio_sb_mem_fifo0_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[3];
+}
+
+static u64 access_pio_csr_parity_err_cnt(const struct cntr_entry *entry,
+					 void *context, int vl, int mode,
+					 u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[2];
+}
+
+static u64 access_pio_write_addr_parity_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[1];
+}
+
+static u64 access_pio_write_bad_ctxt_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_pio_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendDmaErrStatus
+ */
+static u64 access_sdma_pcie_req_tracking_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_dma_err_status_cnt[3];
+}
+
+static u64 access_sdma_pcie_req_tracking_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_dma_err_status_cnt[2];
+}
+
+static u64 access_sdma_csr_parity_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_dma_err_status_cnt[1];
+}
+
+static u64 access_sdma_rpy_tag_err_cnt(const struct cntr_entry *entry,
+				       void *context, int vl, int mode,
+				       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_dma_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendEgressErrStatus
+ */
+static u64 access_tx_read_pio_memory_csr_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[63];
+}
+
+static u64 access_tx_read_sdma_memory_csr_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[62];
+}
+
+static u64 access_tx_egress_fifo_cor_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[61];
+}
+
+static u64 access_tx_read_pio_memory_cor_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[60];
+}
+
+static u64 access_tx_read_sdma_memory_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[59];
+}
+
+static u64 access_tx_sb_hdr_cor_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[58];
+}
+
+static u64 access_tx_credit_overrun_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[57];
+}
+
+static u64 access_tx_launch_fifo8_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[56];
+}
+
+static u64 access_tx_launch_fifo7_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[55];
+}
+
+static u64 access_tx_launch_fifo6_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[54];
+}
+
+static u64 access_tx_launch_fifo5_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[53];
+}
+
+static u64 access_tx_launch_fifo4_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[52];
+}
+
+static u64 access_tx_launch_fifo3_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[51];
+}
+
+static u64 access_tx_launch_fifo2_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[50];
+}
+
+static u64 access_tx_launch_fifo1_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[49];
+}
+
+static u64 access_tx_launch_fifo0_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[48];
+}
+
+static u64 access_tx_credit_return_vl_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[47];
+}
+
+static u64 access_tx_hcrc_insertion_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[46];
+}
+
+static u64 access_tx_egress_fifo_unc_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[45];
+}
+
+static u64 access_tx_read_pio_memory_unc_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[44];
+}
+
+static u64 access_tx_read_sdma_memory_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[43];
+}
+
+static u64 access_tx_sb_hdr_unc_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[42];
+}
+
+static u64 access_tx_credit_return_partiy_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[41];
+}
+
+static u64 access_tx_launch_fifo8_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[40];
+}
+
+static u64 access_tx_launch_fifo7_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[39];
+}
+
+static u64 access_tx_launch_fifo6_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[38];
+}
+
+static u64 access_tx_launch_fifo5_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[37];
+}
+
+static u64 access_tx_launch_fifo4_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[36];
+}
+
+static u64 access_tx_launch_fifo3_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[35];
+}
+
+static u64 access_tx_launch_fifo2_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[34];
+}
+
+static u64 access_tx_launch_fifo1_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[33];
+}
+
+static u64 access_tx_launch_fifo0_unc_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[32];
+}
+
+static u64 access_tx_sdma15_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[31];
+}
+
+static u64 access_tx_sdma14_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[30];
+}
+
+static u64 access_tx_sdma13_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[29];
+}
+
+static u64 access_tx_sdma12_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[28];
+}
+
+static u64 access_tx_sdma11_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[27];
+}
+
+static u64 access_tx_sdma10_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[26];
+}
+
+static u64 access_tx_sdma9_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[25];
+}
+
+static u64 access_tx_sdma8_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[24];
+}
+
+static u64 access_tx_sdma7_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[23];
+}
+
+static u64 access_tx_sdma6_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[22];
+}
+
+static u64 access_tx_sdma5_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[21];
+}
+
+static u64 access_tx_sdma4_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[20];
+}
+
+static u64 access_tx_sdma3_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[19];
+}
+
+static u64 access_tx_sdma2_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[18];
+}
+
+static u64 access_tx_sdma1_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[17];
+}
+
+static u64 access_tx_sdma0_disallowed_packet_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[16];
+}
+
+static u64 access_tx_config_parity_err_cnt(const struct cntr_entry *entry,
+					   void *context, int vl, int mode,
+					   u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[15];
+}
+
+static u64 access_tx_sbrd_ctl_csr_parity_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[14];
+}
+
+static u64 access_tx_launch_csr_parity_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[13];
+}
+
+static u64 access_tx_illegal_vl_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[12];
+}
+
+static u64 access_tx_sbrd_ctl_state_machine_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[11];
+}
+
+static u64 access_egress_reserved_10_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[10];
+}
+
+static u64 access_egress_reserved_9_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[9];
+}
+
+static u64 access_tx_sdma_launch_intf_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[8];
+}
+
+static u64 access_tx_pio_launch_intf_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[7];
+}
+
+static u64 access_egress_reserved_6_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[6];
+}
+
+static u64 access_tx_incorrect_link_state_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[5];
+}
+
+static u64 access_tx_linkdown_err_cnt(const struct cntr_entry *entry,
+				      void *context, int vl, int mode,
+				      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[4];
+}
+
+static u64 access_tx_egress_fifi_underrun_or_parity_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[3];
+}
+
+static u64 access_egress_reserved_2_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[2];
+}
+
+static u64 access_tx_pkt_integrity_mem_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[1];
+}
+
+static u64 access_tx_pkt_integrity_mem_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_egress_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendErrStatus
+ */
+static u64 access_send_csr_write_bad_addr_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_err_status_cnt[2];
+}
+
+static u64 access_send_csr_read_bad_addr_err_cnt(const struct cntr_entry *entry,
+						 void *context, int vl,
+						 int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_err_status_cnt[1];
+}
+
+static u64 access_send_csr_parity_cnt(const struct cntr_entry *entry,
+				      void *context, int vl, int mode,
+				      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->send_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendCtxtErrStatus
+ */
+static u64 access_pio_write_out_of_bounds_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_ctxt_err_status_cnt[4];
+}
+
+static u64 access_pio_write_overflow_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_ctxt_err_status_cnt[3];
+}
+
+static u64 access_pio_write_crosses_boundary_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_ctxt_err_status_cnt[2];
+}
+
+static u64 access_pio_disallowed_packet_err_cnt(const struct cntr_entry *entry,
+						void *context, int vl,
+						int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_ctxt_err_status_cnt[1];
+}
+
+static u64 access_pio_inconsistent_sop_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl, int mode,
+					       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_ctxt_err_status_cnt[0];
+}
+
+/*
+ * Software counters corresponding to each of the
+ * error status bits within SendDmaEngErrStatus
+ */
+static u64 access_sdma_header_request_fifo_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[23];
+}
+
+static u64 access_sdma_header_storage_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[22];
+}
+
+static u64 access_sdma_packet_tracking_cor_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[21];
+}
+
+static u64 access_sdma_assembly_cor_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[20];
+}
+
+static u64 access_sdma_desc_table_cor_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[19];
+}
+
+static u64 access_sdma_header_request_fifo_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[18];
+}
+
+static u64 access_sdma_header_storage_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[17];
+}
+
+static u64 access_sdma_packet_tracking_unc_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[16];
+}
+
+static u64 access_sdma_assembly_unc_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[15];
+}
+
+static u64 access_sdma_desc_table_unc_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[14];
+}
+
+static u64 access_sdma_timeout_err_cnt(const struct cntr_entry *entry,
+				       void *context, int vl, int mode,
+				       u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[13];
+}
+
+static u64 access_sdma_header_length_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[12];
+}
+
+static u64 access_sdma_header_address_err_cnt(const struct cntr_entry *entry,
+					      void *context, int vl, int mode,
+					      u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[11];
+}
+
+static u64 access_sdma_header_select_err_cnt(const struct cntr_entry *entry,
+					     void *context, int vl, int mode,
+					     u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[10];
+}
+
+static u64 access_sdma_reserved_9_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[9];
+}
+
+static u64 access_sdma_packet_desc_overflow_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[8];
+}
+
+static u64 access_sdma_length_mismatch_err_cnt(const struct cntr_entry *entry,
+					       void *context, int vl,
+					       int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[7];
+}
+
+static u64 access_sdma_halt_err_cnt(const struct cntr_entry *entry,
+				    void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[6];
+}
+
+static u64 access_sdma_mem_read_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[5];
+}
+
+static u64 access_sdma_first_desc_err_cnt(const struct cntr_entry *entry,
+					  void *context, int vl, int mode,
+					  u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[4];
+}
+
+static u64 access_sdma_tail_out_of_bounds_err_cnt(
+				const struct cntr_entry *entry,
+				void *context, int vl, int mode, u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[3];
+}
+
+static u64 access_sdma_too_long_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[2];
+}
+
+static u64 access_sdma_gen_mismatch_err_cnt(const struct cntr_entry *entry,
+					    void *context, int vl, int mode,
+					    u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[1];
+}
+
+static u64 access_sdma_wrong_dw_err_cnt(const struct cntr_entry *entry,
+					void *context, int vl, int mode,
+					u64 data)
+{
+	struct hfi1_devdata *dd = (struct hfi1_devdata *)context;
+
+	return dd->sw_send_dma_eng_err_status_cnt[0];
+}
+
 #define def_access_sw_cpu(cntr) \
 static u64 access_sw_cpu_##cntr(const struct cntr_entry *entry,		      \
 			      void *context, int vl, int mode, u64 data)      \
@@ -1587,8 +3929,6 @@ static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = {
 [C_RX_TID_FLGMS] = RXE32_DEV_CNTR_ELEM(RxTidFLGMs,
 			RCV_TID_FLOW_GEN_MISMATCH_CNT,
 			CNTR_NORMAL),
-[C_RX_CTX_RHQS] = RXE32_DEV_CNTR_ELEM(RxCtxRHQS, RCV_CONTEXT_RHQ_STALL,
-			CNTR_NORMAL),
 [C_RX_CTX_EGRS] = RXE32_DEV_CNTR_ELEM(RxCtxEgrS, RCV_CONTEXT_EGR_STALL,
 			CNTR_NORMAL),
 [C_RCV_TID_FLSMS] = RXE32_DEV_CNTR_ELEM(RxTidFLSMs,
@@ -1730,6 +4070,794 @@ static struct cntr_entry dev_cntrs[DEV_CNTR_LAST] = {
 			    access_sw_kmem_wait),
 [C_SW_SEND_SCHED] = CNTR_ELEM("SendSched", 0, 0, CNTR_NORMAL,
 			    access_sw_send_schedule),
+/* MISC_ERR_STATUS */
+[C_MISC_PLL_LOCK_FAIL_ERR] = CNTR_ELEM("MISC_PLL_LOCK_FAIL_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_pll_lock_fail_err_cnt),
+[C_MISC_MBIST_FAIL_ERR] = CNTR_ELEM("MISC_MBIST_FAIL_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_mbist_fail_err_cnt),
+[C_MISC_INVALID_EEP_CMD_ERR] = CNTR_ELEM("MISC_INVALID_EEP_CMD_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_invalid_eep_cmd_err_cnt),
+[C_MISC_EFUSE_DONE_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_DONE_PARITY_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_efuse_done_parity_err_cnt),
+[C_MISC_EFUSE_WRITE_ERR] = CNTR_ELEM("MISC_EFUSE_WRITE_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_efuse_write_err_cnt),
+[C_MISC_EFUSE_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_EFUSE_READ_BAD_ADDR_ERR", 0,
+				0, CNTR_NORMAL,
+				access_misc_efuse_read_bad_addr_err_cnt),
+[C_MISC_EFUSE_CSR_PARITY_ERR] = CNTR_ELEM("MISC_EFUSE_CSR_PARITY_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_efuse_csr_parity_err_cnt),
+[C_MISC_FW_AUTH_FAILED_ERR] = CNTR_ELEM("MISC_FW_AUTH_FAILED_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_fw_auth_failed_err_cnt),
+[C_MISC_KEY_MISMATCH_ERR] = CNTR_ELEM("MISC_KEY_MISMATCH_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_key_mismatch_err_cnt),
+[C_MISC_SBUS_WRITE_FAILED_ERR] = CNTR_ELEM("MISC_SBUS_WRITE_FAILED_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_sbus_write_failed_err_cnt),
+[C_MISC_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_WRITE_BAD_ADDR_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_csr_write_bad_addr_err_cnt),
+[C_MISC_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("MISC_CSR_READ_BAD_ADDR_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_csr_read_bad_addr_err_cnt),
+[C_MISC_CSR_PARITY_ERR] = CNTR_ELEM("MISC_CSR_PARITY_ERR", 0, 0,
+				CNTR_NORMAL,
+				access_misc_csr_parity_err_cnt),
+/* CceErrStatus */
+[C_CCE_ERR_STATUS_AGGREGATED_CNT] = CNTR_ELEM("CceErrStatusAggregatedCnt", 0, 0,
+				CNTR_NORMAL,
+				access_sw_cce_err_status_aggregated_cnt),
+[C_CCE_MSIX_CSR_PARITY_ERR] = CNTR_ELEM("CceMsixCsrParityErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_msix_csr_parity_err_cnt),
+[C_CCE_INT_MAP_UNC_ERR] = CNTR_ELEM("CceIntMapUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_int_map_unc_err_cnt),
+[C_CCE_INT_MAP_COR_ERR] = CNTR_ELEM("CceIntMapCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_int_map_cor_err_cnt),
+[C_CCE_MSIX_TABLE_UNC_ERR] = CNTR_ELEM("CceMsixTableUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_msix_table_unc_err_cnt),
+[C_CCE_MSIX_TABLE_COR_ERR] = CNTR_ELEM("CceMsixTableCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_msix_table_cor_err_cnt),
+[C_CCE_RXDMA_CONV_FIFO_PARITY_ERR] = CNTR_ELEM("CceRxdmaConvFifoParityErr", 0,
+				0, CNTR_NORMAL,
+				access_cce_rxdma_conv_fifo_parity_err_cnt),
+[C_CCE_RCPL_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceRcplAsyncFifoParityErr", 0,
+				0, CNTR_NORMAL,
+				access_cce_rcpl_async_fifo_parity_err_cnt),
+[C_CCE_SEG_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceSegWriteBadAddrErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_seg_write_bad_addr_err_cnt),
+[C_CCE_SEG_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceSegReadBadAddrErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_seg_read_bad_addr_err_cnt),
+[C_LA_TRIGGERED] = CNTR_ELEM("Cce LATriggered", 0, 0,
+				CNTR_NORMAL,
+				access_la_triggered_cnt),
+[C_CCE_TRGT_CPL_TIMEOUT_ERR] = CNTR_ELEM("CceTrgtCplTimeoutErr", 0, 0,
+				CNTR_NORMAL,
+				access_cce_trgt_cpl_timeout_err_cnt),
+[C_PCIC_RECEIVE_PARITY_ERR] = CNTR_ELEM("PcicReceiveParityErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_receive_parity_err_cnt),
+[C_PCIC_TRANSMIT_BACK_PARITY_ERR] = CNTR_ELEM("PcicTransmitBackParityErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_transmit_back_parity_err_cnt),
+[C_PCIC_TRANSMIT_FRONT_PARITY_ERR] = CNTR_ELEM("PcicTransmitFrontParityErr", 0,
+				0, CNTR_NORMAL,
+				access_pcic_transmit_front_parity_err_cnt),
+[C_PCIC_CPL_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicCplDatQUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_cpl_dat_q_unc_err_cnt),
+[C_PCIC_CPL_HD_Q_UNC_ERR] = CNTR_ELEM("PcicCplHdQUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_cpl_hd_q_unc_err_cnt),
+[C_PCIC_POST_DAT_Q_UNC_ERR] = CNTR_ELEM("PcicPostDatQUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_post_dat_q_unc_err_cnt),
+[C_PCIC_POST_HD_Q_UNC_ERR] = CNTR_ELEM("PcicPostHdQUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_post_hd_q_unc_err_cnt),
+[C_PCIC_RETRY_SOT_MEM_UNC_ERR] = CNTR_ELEM("PcicRetrySotMemUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_retry_sot_mem_unc_err_cnt),
+[C_PCIC_RETRY_MEM_UNC_ERR] = CNTR_ELEM("PcicRetryMemUncErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_retry_mem_unc_err),
+[C_PCIC_N_POST_DAT_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostDatQParityErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_n_post_dat_q_parity_err_cnt),
+[C_PCIC_N_POST_H_Q_PARITY_ERR] = CNTR_ELEM("PcicNPostHQParityErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_n_post_h_q_parity_err_cnt),
+[C_PCIC_CPL_DAT_Q_COR_ERR] = CNTR_ELEM("PcicCplDatQCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_cpl_dat_q_cor_err_cnt),
+[C_PCIC_CPL_HD_Q_COR_ERR] = CNTR_ELEM("PcicCplHdQCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_cpl_hd_q_cor_err_cnt),
+[C_PCIC_POST_DAT_Q_COR_ERR] = CNTR_ELEM("PcicPostDatQCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_post_dat_q_cor_err_cnt),
+[C_PCIC_POST_HD_Q_COR_ERR] = CNTR_ELEM("PcicPostHdQCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_post_hd_q_cor_err_cnt),
+[C_PCIC_RETRY_SOT_MEM_COR_ERR] = CNTR_ELEM("PcicRetrySotMemCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_retry_sot_mem_cor_err_cnt),
+[C_PCIC_RETRY_MEM_COR_ERR] = CNTR_ELEM("PcicRetryMemCorErr", 0, 0,
+				CNTR_NORMAL,
+				access_pcic_retry_mem_cor_err_cnt),
+[C_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERR] = CNTR_ELEM(
+				"CceCli1AsyncFifoDbgParityError", 0, 0,
+				CNTR_NORMAL,
+				access_cce_cli1_async_fifo_dbg_parity_err_cnt),
+[C_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERR] = CNTR_ELEM(
+				"CceCli1AsyncFifoRxdmaParityError", 0, 0,
+				CNTR_NORMAL,
+				access_cce_cli1_async_fifo_rxdma_parity_err_cnt
+				),
+[C_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR] = CNTR_ELEM(
+			"CceCli1AsyncFifoSdmaHdParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_cli1_async_fifo_sdma_hd_parity_err_cnt),
+[C_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR] = CNTR_ELEM(
+			"CceCli1AsyncFifoPioCrdtParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_cl1_async_fifo_pio_crdt_parity_err_cnt),
+[C_CCE_CLI2_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceCli2AsyncFifoParityErr", 0,
+			0, CNTR_NORMAL,
+			access_cce_cli2_async_fifo_parity_err_cnt),
+[C_CCE_CSR_CFG_BUS_PARITY_ERR] = CNTR_ELEM("CceCsrCfgBusParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_csr_cfg_bus_parity_err_cnt),
+[C_CCE_CLI0_ASYNC_FIFO_PARTIY_ERR] = CNTR_ELEM("CceCli0AsyncFifoParityErr", 0,
+			0, CNTR_NORMAL,
+			access_cce_cli0_async_fifo_parity_err_cnt),
+[C_CCE_RSPD_DATA_PARITY_ERR] = CNTR_ELEM("CceRspdDataParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_rspd_data_parity_err_cnt),
+[C_CCE_TRGT_ACCESS_ERR] = CNTR_ELEM("CceTrgtAccessErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_trgt_access_err_cnt),
+[C_CCE_TRGT_ASYNC_FIFO_PARITY_ERR] = CNTR_ELEM("CceTrgtAsyncFifoParityErr", 0,
+			0, CNTR_NORMAL,
+			access_cce_trgt_async_fifo_parity_err_cnt),
+[C_CCE_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrWriteBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_csr_write_bad_addr_err_cnt),
+[C_CCE_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("CceCsrReadBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_cce_csr_read_bad_addr_err_cnt),
+[C_CCE_CSR_PARITY_ERR] = CNTR_ELEM("CceCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_ccs_csr_parity_err_cnt),
+
+/* RcvErrStatus */
+[C_RX_CSR_PARITY_ERR] = CNTR_ELEM("RxCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_csr_parity_err_cnt),
+[C_RX_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrWriteBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_csr_write_bad_addr_err_cnt),
+[C_RX_CSR_READ_BAD_ADDR_ERR] = CNTR_ELEM("RxCsrReadBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_csr_read_bad_addr_err_cnt),
+[C_RX_DMA_CSR_UNC_ERR] = CNTR_ELEM("RxDmaCsrUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_csr_unc_err_cnt),
+[C_RX_DMA_DQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaDqFsmEncodingErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_dq_fsm_encoding_err_cnt),
+[C_RX_DMA_EQ_FSM_ENCODING_ERR] = CNTR_ELEM("RxDmaEqFsmEncodingErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_eq_fsm_encoding_err_cnt),
+[C_RX_DMA_CSR_PARITY_ERR] = CNTR_ELEM("RxDmaCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_csr_parity_err_cnt),
+[C_RX_RBUF_DATA_COR_ERR] = CNTR_ELEM("RxRbufDataCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_data_cor_err_cnt),
+[C_RX_RBUF_DATA_UNC_ERR] = CNTR_ELEM("RxRbufDataUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_data_unc_err_cnt),
+[C_RX_DMA_DATA_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaDataFifoRdCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_data_fifo_rd_cor_err_cnt),
+[C_RX_DMA_DATA_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaDataFifoRdUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_data_fifo_rd_unc_err_cnt),
+[C_RX_DMA_HDR_FIFO_RD_COR_ERR] = CNTR_ELEM("RxDmaHdrFifoRdCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_hdr_fifo_rd_cor_err_cnt),
+[C_RX_DMA_HDR_FIFO_RD_UNC_ERR] = CNTR_ELEM("RxDmaHdrFifoRdUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_hdr_fifo_rd_unc_err_cnt),
+[C_RX_RBUF_DESC_PART2_COR_ERR] = CNTR_ELEM("RxRbufDescPart2CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_desc_part2_cor_err_cnt),
+[C_RX_RBUF_DESC_PART2_UNC_ERR] = CNTR_ELEM("RxRbufDescPart2UncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_desc_part2_unc_err_cnt),
+[C_RX_RBUF_DESC_PART1_COR_ERR] = CNTR_ELEM("RxRbufDescPart1CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_desc_part1_cor_err_cnt),
+[C_RX_RBUF_DESC_PART1_UNC_ERR] = CNTR_ELEM("RxRbufDescPart1UncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_desc_part1_unc_err_cnt),
+[C_RX_HQ_INTR_FSM_ERR] = CNTR_ELEM("RxHqIntrFsmErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_hq_intr_fsm_err_cnt),
+[C_RX_HQ_INTR_CSR_PARITY_ERR] = CNTR_ELEM("RxHqIntrCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_hq_intr_csr_parity_err_cnt),
+[C_RX_LOOKUP_CSR_PARITY_ERR] = CNTR_ELEM("RxLookupCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_lookup_csr_parity_err_cnt),
+[C_RX_LOOKUP_RCV_ARRAY_COR_ERR] = CNTR_ELEM("RxLookupRcvArrayCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_lookup_rcv_array_cor_err_cnt),
+[C_RX_LOOKUP_RCV_ARRAY_UNC_ERR] = CNTR_ELEM("RxLookupRcvArrayUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_lookup_rcv_array_unc_err_cnt),
+[C_RX_LOOKUP_DES_PART2_PARITY_ERR] = CNTR_ELEM("RxLookupDesPart2ParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_lookup_des_part2_parity_err_cnt),
+[C_RX_LOOKUP_DES_PART1_UNC_COR_ERR] = CNTR_ELEM("RxLookupDesPart1UncCorErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_lookup_des_part1_unc_cor_err_cnt),
+[C_RX_LOOKUP_DES_PART1_UNC_ERR] = CNTR_ELEM("RxLookupDesPart1UncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_lookup_des_part1_unc_err_cnt),
+[C_RX_RBUF_NEXT_FREE_BUF_COR_ERR] = CNTR_ELEM("RxRbufNextFreeBufCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_next_free_buf_cor_err_cnt),
+[C_RX_RBUF_NEXT_FREE_BUF_UNC_ERR] = CNTR_ELEM("RxRbufNextFreeBufUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_next_free_buf_unc_err_cnt),
+[C_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR] = CNTR_ELEM(
+			"RxRbufFlInitWrAddrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rbuf_fl_init_wr_addr_parity_err_cnt),
+[C_RX_RBUF_FL_INITDONE_PARITY_ERR] = CNTR_ELEM("RxRbufFlInitdoneParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_fl_initdone_parity_err_cnt),
+[C_RX_RBUF_FL_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlWrAddrParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_fl_write_addr_parity_err_cnt),
+[C_RX_RBUF_FL_RD_ADDR_PARITY_ERR] = CNTR_ELEM("RxRbufFlRdAddrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_fl_rd_addr_parity_err_cnt),
+[C_RX_RBUF_EMPTY_ERR] = CNTR_ELEM("RxRbufEmptyErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_empty_err_cnt),
+[C_RX_RBUF_FULL_ERR] = CNTR_ELEM("RxRbufFullErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_full_err_cnt),
+[C_RX_RBUF_BAD_LOOKUP_ERR] = CNTR_ELEM("RxRBufBadLookupErr", 0, 0,
+			CNTR_NORMAL,
+			access_rbuf_bad_lookup_err_cnt),
+[C_RX_RBUF_CTX_ID_PARITY_ERR] = CNTR_ELEM("RxRbufCtxIdParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rbuf_ctx_id_parity_err_cnt),
+[C_RX_RBUF_CSR_QEOPDW_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEOPDWParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rbuf_csr_qeopdw_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_NUM_OF_PKT_PARITY_ERR] = CNTR_ELEM(
+			"RxRbufCsrQNumOfPktParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_csr_q_num_of_pkt_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_T1_PTR_PARITY_ERR] = CNTR_ELEM(
+			"RxRbufCsrQTlPtrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_csr_q_t1_ptr_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_HD_PTR_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQHdPtrParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_csr_q_hd_ptr_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_VLD_BIT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQVldBitParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_csr_q_vld_bit_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_NEXT_BUF_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQNextBufParityErr",
+			0, 0, CNTR_NORMAL,
+			access_rx_rbuf_csr_q_next_buf_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_ENT_CNT_PARITY_ERR] = CNTR_ELEM("RxRbufCsrQEntCntParityErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_csr_q_ent_cnt_parity_err_cnt),
+[C_RX_RBUF_CSR_Q_HEAD_BUF_NUM_PARITY_ERR] = CNTR_ELEM(
+			"RxRbufCsrQHeadBufNumParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_csr_q_head_buf_num_parity_err_cnt),
+[C_RX_RBUF_BLOCK_LIST_READ_COR_ERR] = CNTR_ELEM("RxRbufBlockListReadCorErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_block_list_read_cor_err_cnt),
+[C_RX_RBUF_BLOCK_LIST_READ_UNC_ERR] = CNTR_ELEM("RxRbufBlockListReadUncErr", 0,
+			0, CNTR_NORMAL,
+			access_rx_rbuf_block_list_read_unc_err_cnt),
+[C_RX_RBUF_LOOKUP_DES_COR_ERR] = CNTR_ELEM("RxRbufLookupDesCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_lookup_des_cor_err_cnt),
+[C_RX_RBUF_LOOKUP_DES_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_lookup_des_unc_err_cnt),
+[C_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR] = CNTR_ELEM(
+			"RxRbufLookupDesRegUncCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_lookup_des_reg_unc_cor_err_cnt),
+[C_RX_RBUF_LOOKUP_DES_REG_UNC_ERR] = CNTR_ELEM("RxRbufLookupDesRegUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_lookup_des_reg_unc_err_cnt),
+[C_RX_RBUF_FREE_LIST_COR_ERR] = CNTR_ELEM("RxRbufFreeListCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_free_list_cor_err_cnt),
+[C_RX_RBUF_FREE_LIST_UNC_ERR] = CNTR_ELEM("RxRbufFreeListUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rbuf_free_list_unc_err_cnt),
+[C_RX_RCV_FSM_ENCODING_ERR] = CNTR_ELEM("RxRcvFsmEncodingErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_fsm_encoding_err_cnt),
+[C_RX_DMA_FLAG_COR_ERR] = CNTR_ELEM("RxDmaFlagCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_flag_cor_err_cnt),
+[C_RX_DMA_FLAG_UNC_ERR] = CNTR_ELEM("RxDmaFlagUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_flag_unc_err_cnt),
+[C_RX_DC_SOP_EOP_PARITY_ERR] = CNTR_ELEM("RxDcSopEopParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dc_sop_eop_parity_err_cnt),
+[C_RX_RCV_CSR_PARITY_ERR] = CNTR_ELEM("RxRcvCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_csr_parity_err_cnt),
+[C_RX_RCV_QP_MAP_TABLE_COR_ERR] = CNTR_ELEM("RxRcvQpMapTableCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_qp_map_table_cor_err_cnt),
+[C_RX_RCV_QP_MAP_TABLE_UNC_ERR] = CNTR_ELEM("RxRcvQpMapTableUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_qp_map_table_unc_err_cnt),
+[C_RX_RCV_DATA_COR_ERR] = CNTR_ELEM("RxRcvDataCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_data_cor_err_cnt),
+[C_RX_RCV_DATA_UNC_ERR] = CNTR_ELEM("RxRcvDataUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_data_unc_err_cnt),
+[C_RX_RCV_HDR_COR_ERR] = CNTR_ELEM("RxRcvHdrCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_hdr_cor_err_cnt),
+[C_RX_RCV_HDR_UNC_ERR] = CNTR_ELEM("RxRcvHdrUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_rcv_hdr_unc_err_cnt),
+[C_RX_DC_INTF_PARITY_ERR] = CNTR_ELEM("RxDcIntfParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dc_intf_parity_err_cnt),
+[C_RX_DMA_CSR_COR_ERR] = CNTR_ELEM("RxDmaCsrCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_rx_dma_csr_cor_err_cnt),
+/* SendPioErrStatus */
+[C_PIO_PEC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPecSopHeadParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pec_sop_head_parity_err_cnt),
+[C_PIO_PCC_SOP_HEAD_PARITY_ERR] = CNTR_ELEM("PioPccSopHeadParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pcc_sop_head_parity_err_cnt),
+[C_PIO_LAST_RETURNED_CNT_PARITY_ERR] = CNTR_ELEM("PioLastReturnedCntParityErr",
+			0, 0, CNTR_NORMAL,
+			access_pio_last_returned_cnt_parity_err_cnt),
+[C_PIO_CURRENT_FREE_CNT_PARITY_ERR] = CNTR_ELEM("PioCurrentFreeCntParityErr", 0,
+			0, CNTR_NORMAL,
+			access_pio_current_free_cnt_parity_err_cnt),
+[C_PIO_RSVD_31_ERR] = CNTR_ELEM("Pio Reserved 31", 0, 0,
+			CNTR_NORMAL,
+			access_pio_reserved_31_err_cnt),
+[C_PIO_RSVD_30_ERR] = CNTR_ELEM("Pio Reserved 30", 0, 0,
+			CNTR_NORMAL,
+			access_pio_reserved_30_err_cnt),
+[C_PIO_PPMC_SOP_LEN_ERR] = CNTR_ELEM("PioPpmcSopLenErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_ppmc_sop_len_err_cnt),
+[C_PIO_PPMC_BQC_MEM_PARITY_ERR] = CNTR_ELEM("PioPpmcBqcMemParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_ppmc_bqc_mem_parity_err_cnt),
+[C_PIO_VL_FIFO_PARITY_ERR] = CNTR_ELEM("PioVlFifoParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_vl_fifo_parity_err_cnt),
+[C_PIO_VLF_SOP_PARITY_ERR] = CNTR_ELEM("PioVlfSopParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_vlf_sop_parity_err_cnt),
+[C_PIO_VLF_V1_LEN_PARITY_ERR] = CNTR_ELEM("PioVlfVlLenParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_vlf_v1_len_parity_err_cnt),
+[C_PIO_BLOCK_QW_COUNT_PARITY_ERR] = CNTR_ELEM("PioBlockQwCountParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_block_qw_count_parity_err_cnt),
+[C_PIO_WRITE_QW_VALID_PARITY_ERR] = CNTR_ELEM("PioWriteQwValidParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_qw_valid_parity_err_cnt),
+[C_PIO_STATE_MACHINE_ERR] = CNTR_ELEM("PioStateMachineErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_state_machine_err_cnt),
+[C_PIO_WRITE_DATA_PARITY_ERR] = CNTR_ELEM("PioWriteDataParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_data_parity_err_cnt),
+[C_PIO_HOST_ADDR_MEM_COR_ERR] = CNTR_ELEM("PioHostAddrMemCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_host_addr_mem_cor_err_cnt),
+[C_PIO_HOST_ADDR_MEM_UNC_ERR] = CNTR_ELEM("PioHostAddrMemUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_host_addr_mem_unc_err_cnt),
+[C_PIO_PKT_EVICT_SM_OR_ARM_SM_ERR] = CNTR_ELEM("PioPktEvictSmOrArbSmErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pkt_evict_sm_or_arb_sm_err_cnt),
+[C_PIO_INIT_SM_IN_ERR] = CNTR_ELEM("PioInitSmInErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_init_sm_in_err_cnt),
+[C_PIO_PPMC_PBL_FIFO_ERR] = CNTR_ELEM("PioPpmcPblFifoErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_ppmc_pbl_fifo_err_cnt),
+[C_PIO_CREDIT_RET_FIFO_PARITY_ERR] = CNTR_ELEM("PioCreditRetFifoParityErr", 0,
+			0, CNTR_NORMAL,
+			access_pio_credit_ret_fifo_parity_err_cnt),
+[C_PIO_V1_LEN_MEM_BANK1_COR_ERR] = CNTR_ELEM("PioVlLenMemBank1CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_v1_len_mem_bank1_cor_err_cnt),
+[C_PIO_V1_LEN_MEM_BANK0_COR_ERR] = CNTR_ELEM("PioVlLenMemBank0CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_v1_len_mem_bank0_cor_err_cnt),
+[C_PIO_V1_LEN_MEM_BANK1_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank1UncErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_v1_len_mem_bank1_unc_err_cnt),
+[C_PIO_V1_LEN_MEM_BANK0_UNC_ERR] = CNTR_ELEM("PioVlLenMemBank0UncErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_v1_len_mem_bank0_unc_err_cnt),
+[C_PIO_SM_PKT_RESET_PARITY_ERR] = CNTR_ELEM("PioSmPktResetParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_sm_pkt_reset_parity_err_cnt),
+[C_PIO_PKT_EVICT_FIFO_PARITY_ERR] = CNTR_ELEM("PioPktEvictFifoParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pkt_evict_fifo_parity_err_cnt),
+[C_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR] = CNTR_ELEM(
+			"PioSbrdctrlCrrelFifoParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_sbrdctrl_crrel_fifo_parity_err_cnt),
+[C_PIO_SBRDCTL_CRREL_PARITY_ERR] = CNTR_ELEM("PioSbrdctlCrrelParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_sbrdctl_crrel_parity_err_cnt),
+[C_PIO_PEC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPecFifoParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pec_fifo_parity_err_cnt),
+[C_PIO_PCC_FIFO_PARITY_ERR] = CNTR_ELEM("PioPccFifoParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_pcc_fifo_parity_err_cnt),
+[C_PIO_SB_MEM_FIFO1_ERR] = CNTR_ELEM("PioSbMemFifo1Err", 0, 0,
+			CNTR_NORMAL,
+			access_pio_sb_mem_fifo1_err_cnt),
+[C_PIO_SB_MEM_FIFO0_ERR] = CNTR_ELEM("PioSbMemFifo0Err", 0, 0,
+			CNTR_NORMAL,
+			access_pio_sb_mem_fifo0_err_cnt),
+[C_PIO_CSR_PARITY_ERR] = CNTR_ELEM("PioCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_csr_parity_err_cnt),
+[C_PIO_WRITE_ADDR_PARITY_ERR] = CNTR_ELEM("PioWriteAddrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_addr_parity_err_cnt),
+[C_PIO_WRITE_BAD_CTXT_ERR] = CNTR_ELEM("PioWriteBadCtxtErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_bad_ctxt_err_cnt),
+/* SendDmaErrStatus */
+[C_SDMA_PCIE_REQ_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPcieReqTrackingCorErr", 0,
+			0, CNTR_NORMAL,
+			access_sdma_pcie_req_tracking_cor_err_cnt),
+[C_SDMA_PCIE_REQ_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPcieReqTrackingUncErr", 0,
+			0, CNTR_NORMAL,
+			access_sdma_pcie_req_tracking_unc_err_cnt),
+[C_SDMA_CSR_PARITY_ERR] = CNTR_ELEM("SDmaCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_csr_parity_err_cnt),
+[C_SDMA_RPY_TAG_ERR] = CNTR_ELEM("SDmaRpyTagErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_rpy_tag_err_cnt),
+/* SendEgressErrStatus */
+[C_TX_READ_PIO_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryCsrUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_read_pio_memory_csr_unc_err_cnt),
+[C_TX_READ_SDMA_MEMORY_CSR_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryCsrUncErr", 0,
+			0, CNTR_NORMAL,
+			access_tx_read_sdma_memory_csr_err_cnt),
+[C_TX_EGRESS_FIFO_COR_ERR] = CNTR_ELEM("TxEgressFifoCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_egress_fifo_cor_err_cnt),
+[C_TX_READ_PIO_MEMORY_COR_ERR] = CNTR_ELEM("TxReadPioMemoryCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_read_pio_memory_cor_err_cnt),
+[C_TX_READ_SDMA_MEMORY_COR_ERR] = CNTR_ELEM("TxReadSdmaMemoryCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_read_sdma_memory_cor_err_cnt),
+[C_TX_SB_HDR_COR_ERR] = CNTR_ELEM("TxSbHdrCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_sb_hdr_cor_err_cnt),
+[C_TX_CREDIT_OVERRUN_ERR] = CNTR_ELEM("TxCreditOverrunErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_credit_overrun_err_cnt),
+[C_TX_LAUNCH_FIFO8_COR_ERR] = CNTR_ELEM("TxLaunchFifo8CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo8_cor_err_cnt),
+[C_TX_LAUNCH_FIFO7_COR_ERR] = CNTR_ELEM("TxLaunchFifo7CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo7_cor_err_cnt),
+[C_TX_LAUNCH_FIFO6_COR_ERR] = CNTR_ELEM("TxLaunchFifo6CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo6_cor_err_cnt),
+[C_TX_LAUNCH_FIFO5_COR_ERR] = CNTR_ELEM("TxLaunchFifo5CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo5_cor_err_cnt),
+[C_TX_LAUNCH_FIFO4_COR_ERR] = CNTR_ELEM("TxLaunchFifo4CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo4_cor_err_cnt),
+[C_TX_LAUNCH_FIFO3_COR_ERR] = CNTR_ELEM("TxLaunchFifo3CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo3_cor_err_cnt),
+[C_TX_LAUNCH_FIFO2_COR_ERR] = CNTR_ELEM("TxLaunchFifo2CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo2_cor_err_cnt),
+[C_TX_LAUNCH_FIFO1_COR_ERR] = CNTR_ELEM("TxLaunchFifo1CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo1_cor_err_cnt),
+[C_TX_LAUNCH_FIFO0_COR_ERR] = CNTR_ELEM("TxLaunchFifo0CorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_fifo0_cor_err_cnt),
+[C_TX_CREDIT_RETURN_VL_ERR] = CNTR_ELEM("TxCreditReturnVLErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_credit_return_vl_err_cnt),
+[C_TX_HCRC_INSERTION_ERR] = CNTR_ELEM("TxHcrcInsertionErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_hcrc_insertion_err_cnt),
+[C_TX_EGRESS_FIFI_UNC_ERR] = CNTR_ELEM("TxEgressFifoUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_egress_fifo_unc_err_cnt),
+[C_TX_READ_PIO_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadPioMemoryUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_read_pio_memory_unc_err_cnt),
+[C_TX_READ_SDMA_MEMORY_UNC_ERR] = CNTR_ELEM("TxReadSdmaMemoryUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_read_sdma_memory_unc_err_cnt),
+[C_TX_SB_HDR_UNC_ERR] = CNTR_ELEM("TxSbHdrUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_sb_hdr_unc_err_cnt),
+[C_TX_CREDIT_RETURN_PARITY_ERR] = CNTR_ELEM("TxCreditReturnParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_credit_return_partiy_err_cnt),
+[C_TX_LAUNCH_FIFO8_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo8UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo8_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO7_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo7UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo7_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO6_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo6UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo6_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO5_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo5UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo5_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO4_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo4UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo4_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO3_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo3UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo3_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO2_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo2UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo2_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO1_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo1UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo1_unc_or_parity_err_cnt),
+[C_TX_LAUNCH_FIFO0_UNC_OR_PARITY_ERR] = CNTR_ELEM("TxLaunchFifo0UncOrParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_launch_fifo0_unc_or_parity_err_cnt),
+[C_TX_SDMA15_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma15DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma15_disallowed_packet_err_cnt),
+[C_TX_SDMA14_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma14DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma14_disallowed_packet_err_cnt),
+[C_TX_SDMA13_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma13DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma13_disallowed_packet_err_cnt),
+[C_TX_SDMA12_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma12DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma12_disallowed_packet_err_cnt),
+[C_TX_SDMA11_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma11DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma11_disallowed_packet_err_cnt),
+[C_TX_SDMA10_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma10DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma10_disallowed_packet_err_cnt),
+[C_TX_SDMA9_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma9DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma9_disallowed_packet_err_cnt),
+[C_TX_SDMA8_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma8DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma8_disallowed_packet_err_cnt),
+[C_TX_SDMA7_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma7DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma7_disallowed_packet_err_cnt),
+[C_TX_SDMA6_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma6DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma6_disallowed_packet_err_cnt),
+[C_TX_SDMA5_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma5DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma5_disallowed_packet_err_cnt),
+[C_TX_SDMA4_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma4DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma4_disallowed_packet_err_cnt),
+[C_TX_SDMA3_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma3DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma3_disallowed_packet_err_cnt),
+[C_TX_SDMA2_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma2DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma2_disallowed_packet_err_cnt),
+[C_TX_SDMA1_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma1DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma1_disallowed_packet_err_cnt),
+[C_TX_SDMA0_DISALLOWED_PACKET_ERR] = CNTR_ELEM("TxSdma0DisallowedPacketErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma0_disallowed_packet_err_cnt),
+[C_TX_CONFIG_PARITY_ERR] = CNTR_ELEM("TxConfigParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_config_parity_err_cnt),
+[C_TX_SBRD_CTL_CSR_PARITY_ERR] = CNTR_ELEM("TxSbrdCtlCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_sbrd_ctl_csr_parity_err_cnt),
+[C_TX_LAUNCH_CSR_PARITY_ERR] = CNTR_ELEM("TxLaunchCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_launch_csr_parity_err_cnt),
+[C_TX_ILLEGAL_CL_ERR] = CNTR_ELEM("TxIllegalVLErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_illegal_vl_err_cnt),
+[C_TX_SBRD_CTL_STATE_MACHINE_PARITY_ERR] = CNTR_ELEM(
+			"TxSbrdCtlStateMachineParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_sbrd_ctl_state_machine_parity_err_cnt),
+[C_TX_RESERVED_10] = CNTR_ELEM("Tx Egress Reserved 10", 0, 0,
+			CNTR_NORMAL,
+			access_egress_reserved_10_err_cnt),
+[C_TX_RESERVED_9] = CNTR_ELEM("Tx Egress Reserved 9", 0, 0,
+			CNTR_NORMAL,
+			access_egress_reserved_9_err_cnt),
+[C_TX_SDMA_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxSdmaLaunchIntfParityErr",
+			0, 0, CNTR_NORMAL,
+			access_tx_sdma_launch_intf_parity_err_cnt),
+[C_TX_PIO_LAUNCH_INTF_PARITY_ERR] = CNTR_ELEM("TxPioLaunchIntfParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_pio_launch_intf_parity_err_cnt),
+[C_TX_RESERVED_6] = CNTR_ELEM("Tx Egress Reserved 6", 0, 0,
+			CNTR_NORMAL,
+			access_egress_reserved_6_err_cnt),
+[C_TX_INCORRECT_LINK_STATE_ERR] = CNTR_ELEM("TxIncorrectLinkStateErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_incorrect_link_state_err_cnt),
+[C_TX_LINK_DOWN_ERR] = CNTR_ELEM("TxLinkdownErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_linkdown_err_cnt),
+[C_TX_EGRESS_FIFO_UNDERRUN_OR_PARITY_ERR] = CNTR_ELEM(
+			"EgressFifoUnderrunOrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_egress_fifi_underrun_or_parity_err_cnt),
+[C_TX_RESERVED_2] = CNTR_ELEM("Tx Egress Reserved 2", 0, 0,
+			CNTR_NORMAL,
+			access_egress_reserved_2_err_cnt),
+[C_TX_PKT_INTEGRITY_MEM_UNC_ERR] = CNTR_ELEM("TxPktIntegrityMemUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_pkt_integrity_mem_unc_err_cnt),
+[C_TX_PKT_INTEGRITY_MEM_COR_ERR] = CNTR_ELEM("TxPktIntegrityMemCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_tx_pkt_integrity_mem_cor_err_cnt),
+/* SendErrStatus */
+[C_SEND_CSR_WRITE_BAD_ADDR_ERR] = CNTR_ELEM("SendCsrWriteBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_send_csr_write_bad_addr_err_cnt),
+[C_SEND_CSR_READ_BAD_ADD_ERR] = CNTR_ELEM("SendCsrReadBadAddrErr", 0, 0,
+			CNTR_NORMAL,
+			access_send_csr_read_bad_addr_err_cnt),
+[C_SEND_CSR_PARITY_ERR] = CNTR_ELEM("SendCsrParityErr", 0, 0,
+			CNTR_NORMAL,
+			access_send_csr_parity_cnt),
+/* SendCtxtErrStatus */
+[C_PIO_WRITE_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("PioWriteOutOfBoundsErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_out_of_bounds_err_cnt),
+[C_PIO_WRITE_OVERFLOW_ERR] = CNTR_ELEM("PioWriteOverflowErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_write_overflow_err_cnt),
+[C_PIO_WRITE_CROSSES_BOUNDARY_ERR] = CNTR_ELEM("PioWriteCrossesBoundaryErr",
+			0, 0, CNTR_NORMAL,
+			access_pio_write_crosses_boundary_err_cnt),
+[C_PIO_DISALLOWED_PACKET_ERR] = CNTR_ELEM("PioDisallowedPacketErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_disallowed_packet_err_cnt),
+[C_PIO_INCONSISTENT_SOP_ERR] = CNTR_ELEM("PioInconsistentSopErr", 0, 0,
+			CNTR_NORMAL,
+			access_pio_inconsistent_sop_err_cnt),
+/* SendDmaEngErrStatus */
+[C_SDMA_HEADER_REQUEST_FIFO_COR_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoCorErr",
+			0, 0, CNTR_NORMAL,
+			access_sdma_header_request_fifo_cor_err_cnt),
+[C_SDMA_HEADER_STORAGE_COR_ERR] = CNTR_ELEM("SDmaHeaderStorageCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_header_storage_cor_err_cnt),
+[C_SDMA_PACKET_TRACKING_COR_ERR] = CNTR_ELEM("SDmaPacketTrackingCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_packet_tracking_cor_err_cnt),
+[C_SDMA_ASSEMBLY_COR_ERR] = CNTR_ELEM("SDmaAssemblyCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_assembly_cor_err_cnt),
+[C_SDMA_DESC_TABLE_COR_ERR] = CNTR_ELEM("SDmaDescTableCorErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_desc_table_cor_err_cnt),
+[C_SDMA_HEADER_REQUEST_FIFO_UNC_ERR] = CNTR_ELEM("SDmaHeaderRequestFifoUncErr",
+			0, 0, CNTR_NORMAL,
+			access_sdma_header_request_fifo_unc_err_cnt),
+[C_SDMA_HEADER_STORAGE_UNC_ERR] = CNTR_ELEM("SDmaHeaderStorageUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_header_storage_unc_err_cnt),
+[C_SDMA_PACKET_TRACKING_UNC_ERR] = CNTR_ELEM("SDmaPacketTrackingUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_packet_tracking_unc_err_cnt),
+[C_SDMA_ASSEMBLY_UNC_ERR] = CNTR_ELEM("SDmaAssemblyUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_assembly_unc_err_cnt),
+[C_SDMA_DESC_TABLE_UNC_ERR] = CNTR_ELEM("SDmaDescTableUncErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_desc_table_unc_err_cnt),
+[C_SDMA_TIMEOUT_ERR] = CNTR_ELEM("SDmaTimeoutErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_timeout_err_cnt),
+[C_SDMA_HEADER_LENGTH_ERR] = CNTR_ELEM("SDmaHeaderLengthErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_header_length_err_cnt),
+[C_SDMA_HEADER_ADDRESS_ERR] = CNTR_ELEM("SDmaHeaderAddressErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_header_address_err_cnt),
+[C_SDMA_HEADER_SELECT_ERR] = CNTR_ELEM("SDmaHeaderSelectErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_header_select_err_cnt),
+[C_SMDA_RESERVED_9] = CNTR_ELEM("SDma Reserved 9", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_reserved_9_err_cnt),
+[C_SDMA_PACKET_DESC_OVERFLOW_ERR] = CNTR_ELEM("SDmaPacketDescOverflowErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_packet_desc_overflow_err_cnt),
+[C_SDMA_LENGTH_MISMATCH_ERR] = CNTR_ELEM("SDmaLengthMismatchErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_length_mismatch_err_cnt),
+[C_SDMA_HALT_ERR] = CNTR_ELEM("SDmaHaltErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_halt_err_cnt),
+[C_SDMA_MEM_READ_ERR] = CNTR_ELEM("SDmaMemReadErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_mem_read_err_cnt),
+[C_SDMA_FIRST_DESC_ERR] = CNTR_ELEM("SDmaFirstDescErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_first_desc_err_cnt),
+[C_SDMA_TAIL_OUT_OF_BOUNDS_ERR] = CNTR_ELEM("SDmaTailOutOfBoundsErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_tail_out_of_bounds_err_cnt),
+[C_SDMA_TOO_LONG_ERR] = CNTR_ELEM("SDmaTooLongErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_too_long_err_cnt),
+[C_SDMA_GEN_MISMATCH_ERR] = CNTR_ELEM("SDmaGenMismatchErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_gen_mismatch_err_cnt),
+[C_SDMA_WRONG_DW_ERR] = CNTR_ELEM("SDmaWrongDwErr", 0, 0,
+			CNTR_NORMAL,
+			access_sdma_wrong_dw_err_cnt),
 };
 
 static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = {
@@ -1762,6 +4890,8 @@ static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = {
 			access_sw_link_dn_cnt),
 [C_SW_LINK_UP] = CNTR_ELEM("SwLinkUp", 0, 0, CNTR_SYNTH | CNTR_32BIT,
 			access_sw_link_up_cnt),
+[C_SW_UNKNOWN_FRAME] = CNTR_ELEM("UnknownFrame", 0, 0, CNTR_NORMAL,
+				 access_sw_unknown_frame_cnt),
 [C_SW_XMIT_DSCD] = CNTR_ELEM("XmitDscd", 0, 0, CNTR_SYNTH | CNTR_32BIT,
 			access_sw_xmit_discards),
 [C_SW_XMIT_DSCD_VL] = CNTR_ELEM("XmitDscdVl", 0, 0,
@@ -1873,13 +5003,6 @@ static struct cntr_entry port_cntrs[PORT_CNTR_LAST] = {
 
 /* ======================================================================== */
 
-/* return true if this is chip revision revision a0 */
-int is_a0(struct hfi1_devdata *dd)
-{
-	return ((dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT)
-			& CCE_REVISION_CHIP_REV_MINOR_MASK) == 0;
-}
-
 /* return true if this is chip revision revision a */
 int is_ax(struct hfi1_devdata *dd)
 {
@@ -1895,7 +5018,7 @@ int is_bx(struct hfi1_devdata *dd)
 	u8 chip_rev_minor =
 		dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT
 			& CCE_REVISION_CHIP_REV_MINOR_MASK;
-	return !!(chip_rev_minor & 0x10);
+	return (chip_rev_minor & 0xF0) == 0x10;
 }
 
 /*
@@ -2182,6 +5305,7 @@ static char *send_err_status_string(char *buf, int buf_len, u64 flags)
 static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	/*
 	 * For most these errors, there is nothing that can be done except
@@ -2190,13 +5314,20 @@ static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 	dd_dev_info(dd, "CCE Error: %s\n",
 		cce_err_status_string(buf, sizeof(buf), reg));
 
-	if ((reg & CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK)
-			&& is_a0(dd)
-			&& (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) {
+	if ((reg & CCE_ERR_STATUS_CCE_CLI2_ASYNC_FIFO_PARITY_ERR_SMASK) &&
+	    is_ax(dd) && (dd->icode != ICODE_FUNCTIONAL_SIMULATOR)) {
 		/* this error requires a manual drop into SPC freeze mode */
 		/* then a fix up */
 		start_freeze_handling(dd->pport, FREEZE_SELF);
 	}
+
+	for (i = 0; i < NUM_CCE_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i)) {
+			incr_cntr64(&dd->cce_err_status_cnt[i]);
+			/* maintain a counter over all cce_err_status errors */
+			incr_cntr64(&dd->sw_cce_err_status_aggregate);
+		}
+	}
 }
 
 /*
@@ -2241,6 +5372,7 @@ static void free_rcverr(struct hfi1_devdata *dd)
 static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	dd_dev_info(dd, "Receive Error: %s\n",
 		rxe_err_status_string(buf, sizeof(buf), reg));
@@ -2252,41 +5384,63 @@ static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 		 * Freeze mode recovery is disabled for the errors
 		 * in RXE_FREEZE_ABORT_MASK
 		 */
-		if (is_a0(dd) && (reg & RXE_FREEZE_ABORT_MASK))
+		if (is_ax(dd) && (reg & RXE_FREEZE_ABORT_MASK))
 			flags = FREEZE_ABORT;
 
 		start_freeze_handling(dd->pport, flags);
 	}
+
+	for (i = 0; i < NUM_RCV_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->rcv_err_status_cnt[i]);
+	}
 }
 
 static void handle_misc_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	dd_dev_info(dd, "Misc Error: %s",
 		misc_err_status_string(buf, sizeof(buf), reg));
+	for (i = 0; i < NUM_MISC_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->misc_err_status_cnt[i]);
+	}
 }
 
 static void handle_pio_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	dd_dev_info(dd, "PIO Error: %s\n",
 		pio_err_status_string(buf, sizeof(buf), reg));
 
 	if (reg & ALL_PIO_FREEZE_ERR)
 		start_freeze_handling(dd->pport, 0);
+
+	for (i = 0; i < NUM_SEND_PIO_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->send_pio_err_status_cnt[i]);
+	}
 }
 
 static void handle_sdma_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	dd_dev_info(dd, "SDMA Error: %s\n",
 		sdma_err_status_string(buf, sizeof(buf), reg));
 
 	if (reg & ALL_SDMA_FREEZE_ERR)
 		start_freeze_handling(dd->pport, 0);
+
+	for (i = 0; i < NUM_SEND_DMA_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->send_dma_err_status_cnt[i]);
+	}
 }
 
 static void count_port_inactive(struct hfi1_devdata *dd)
@@ -2352,10 +5506,11 @@ static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	u64 reg_copy = reg, handled = 0;
 	char buf[96];
+	int i = 0;
 
 	if (reg & ALL_TXE_EGRESS_FREEZE_ERR)
 		start_freeze_handling(dd->pport, 0);
-	if (is_a0(dd) && (reg &
+	if (is_ax(dd) && (reg &
 		    SEND_EGRESS_ERR_STATUS_TX_CREDIT_RETURN_VL_ERR_SMASK)
 		    && (dd->icode != ICODE_FUNCTIONAL_SIMULATOR))
 		start_freeze_handling(dd->pport, 0);
@@ -2383,15 +5538,25 @@ static void handle_egress_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 	if (reg)
 		dd_dev_info(dd, "Egress Error: %s\n",
 			egress_err_status_string(buf, sizeof(buf), reg));
+
+	for (i = 0; i < NUM_SEND_EGRESS_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->send_egress_err_status_cnt[i]);
+	}
 }
 
 static void handle_txe_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
 {
 	char buf[96];
+	int i = 0;
 
 	dd_dev_info(dd, "Send Error: %s\n",
 		send_err_status_string(buf, sizeof(buf), reg));
 
+	for (i = 0; i < NUM_SEND_ERR_STATUS_COUNTERS; i++) {
+		if (reg & (1ull << i))
+			incr_cntr64(&dd->send_err_status_cnt[i]);
+	}
 }
 
 /*
@@ -2483,6 +5648,7 @@ static void is_sendctxt_err_int(struct hfi1_devdata *dd,
 	char flags[96];
 	u64 status;
 	u32 sw_index;
+	int i = 0;
 
 	sw_index = dd->hw_to_sw[hw_context];
 	if (sw_index >= dd->num_send_contexts) {
@@ -2516,12 +5682,23 @@ static void is_sendctxt_err_int(struct hfi1_devdata *dd,
 	 */
 	if (sc->type != SC_USER)
 		queue_work(dd->pport->hfi1_wq, &sc->halt_work);
+
+	/*
+	 * Update the counters for the corresponding status bits.
+	 * Note that these particular counters are aggregated over all
+	 * 160 contexts.
+	 */
+	for (i = 0; i < NUM_SEND_CTXT_ERR_STATUS_COUNTERS; i++) {
+		if (status & (1ull << i))
+			incr_cntr64(&dd->sw_ctxt_err_status_cnt[i]);
+	}
 }
 
 static void handle_sdma_eng_err(struct hfi1_devdata *dd,
 				unsigned int source, u64 status)
 {
 	struct sdma_engine *sde;
+	int i = 0;
 
 	sde = &dd->per_sdma[source];
 #ifdef CONFIG_SDMA_VERBOSITY
@@ -2531,6 +5708,16 @@ static void handle_sdma_eng_err(struct hfi1_devdata *dd,
 		   sde->this_idx, source, (unsigned long long)status);
 #endif
 	sdma_engine_error(sde, status);
+
+	/*
+	* Update the counters for the corresponding status bits.
+	* Note that these particular counters are aggregated over
+	* all 16 DMA engines.
+	*/
+	for (i = 0; i < NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS; i++) {
+		if (status & (1ull << i))
+			incr_cntr64(&dd->sw_send_dma_eng_err_status_cnt[i]);
+	}
 }
 
 /*
@@ -3050,7 +6237,7 @@ static void adjust_lcb_for_fpga_serdes(struct hfi1_devdata *dd)
 	/* else this is _p */
 
 	version = emulator_rev(dd);
-	if (!is_a0(dd))
+	if (!is_ax(dd))
 		version = 0x2d;	/* all B0 use 0x2d or higher settings */
 
 	if (version <= 0x12) {
@@ -3313,7 +6500,6 @@ void handle_freeze(struct work_struct *work)
 	struct hfi1_devdata *dd = ppd->dd;
 
 	/* wait for freeze indicators on all affected blocks */
-	dd_dev_info(dd, "Entering SPC freeze\n");
 	wait_for_freeze_status(dd, 1);
 
 	/* SPC is now frozen */
@@ -3336,7 +6522,7 @@ void handle_freeze(struct work_struct *work)
 	write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK);
 	wait_for_freeze_status(dd, 0);
 
-	if (is_a0(dd)) {
+	if (is_ax(dd)) {
 		write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_FREEZE_SMASK);
 		wait_for_freeze_status(dd, 1);
 		write_csr(dd, CCE_CTRL, CCE_CTRL_SPC_UNFREEZE_SMASK);
@@ -3371,7 +6557,6 @@ void handle_freeze(struct work_struct *work)
 	wake_up(&dd->event_queue);
 
 	/* no longer frozen */
-	dd_dev_err(dd, "Exiting SPC freeze\n");
 }
 
 /*
@@ -3542,10 +6727,10 @@ static void add_full_mgmt_pkey(struct hfi1_pportdata *ppd)
 {
 	struct hfi1_devdata *dd = ppd->dd;
 
-	/* Sanity check - ppd->pkeys[2] should be 0 */
-	if (ppd->pkeys[2] != 0)
-		dd_dev_err(dd, "%s pkey[2] already set to 0x%x, resetting it to 0x%x\n",
-			   __func__, ppd->pkeys[2], FULL_MGMT_P_KEY);
+	/* Sanity check - ppd->pkeys[2] should be 0, or already initalized */
+	if (!((ppd->pkeys[2] == 0) || (ppd->pkeys[2] == FULL_MGMT_P_KEY)))
+		dd_dev_warn(dd, "%s pkey[2] already set to 0x%x, resetting it to 0x%x\n",
+			    __func__, ppd->pkeys[2], FULL_MGMT_P_KEY);
 	ppd->pkeys[2] = FULL_MGMT_P_KEY;
 	(void)hfi1_set_ib_cfg(ppd, HFI1_IB_CFG_PKEYS, 0);
 }
@@ -3864,7 +7049,7 @@ void handle_verify_cap(struct work_struct *work)
 	 *	REPLAY_BUF_MBE_SMASK
 	 *	FLIT_INPUT_BUF_MBE_SMASK
 	 */
-	if (is_a0(dd)) {			/* fixed in B0 */
+	if (is_ax(dd)) {			/* fixed in B0 */
 		reg = read_csr(dd, DC_LCB_CFG_LINK_KILL_EN);
 		reg |= DC_LCB_CFG_LINK_KILL_EN_REPLAY_BUF_MBE_SMASK
 			| DC_LCB_CFG_LINK_KILL_EN_FLIT_INPUT_BUF_MBE_SMASK;
@@ -3907,18 +7092,32 @@ void handle_verify_cap(struct work_struct *work)
  */
 void apply_link_downgrade_policy(struct hfi1_pportdata *ppd, int refresh_widths)
 {
-	int skip = 1;
 	int do_bounce = 0;
-	u16 lwde = ppd->link_width_downgrade_enabled;
+	int tries;
+	u16 lwde;
 	u16 tx, rx;
 
+	/* use the hls lock to avoid a race with actual link up */
+	tries = 0;
+retry:
 	mutex_lock(&ppd->hls_lock);
 	/* only apply if the link is up */
-	if (ppd->host_link_state & HLS_UP)
-		skip = 0;
-	mutex_unlock(&ppd->hls_lock);
-	if (skip)
-		return;
+	if (!(ppd->host_link_state & HLS_UP)) {
+		/* still going up..wait and retry */
+		if (ppd->host_link_state & HLS_GOING_UP) {
+			if (++tries < 1000) {
+				mutex_unlock(&ppd->hls_lock);
+				usleep_range(100, 120); /* arbitrary */
+				goto retry;
+			}
+			dd_dev_err(ppd->dd,
+				   "%s: giving up waiting for link state change\n",
+				   __func__);
+		}
+		goto done;
+	}
+
+	lwde = ppd->link_width_downgrade_enabled;
 
 	if (refresh_widths) {
 		get_link_widths(ppd->dd, &tx, &rx);
@@ -3956,6 +7155,9 @@ void apply_link_downgrade_policy(struct hfi1_pportdata *ppd, int refresh_widths)
 		do_bounce = 1;
 	}
 
+done:
+	mutex_unlock(&ppd->hls_lock);
+
 	if (do_bounce) {
 		set_link_down_reason(ppd, OPA_LINKDOWN_REASON_WIDTH_POLICY, 0,
 		  OPA_LINKDOWN_REASON_WIDTH_POLICY);
@@ -4046,6 +7248,11 @@ static void handle_8051_interrupt(struct hfi1_devdata *dd, u32 unused, u64 reg)
 			}
 			err &= ~(u64)FAILED_LNI;
 		}
+		/* unknown frames can happen durning LNI, just count */
+		if (err & UNKNOWN_FRAME) {
+			ppd->unknown_frame_count++;
+			err &= ~(u64)UNKNOWN_FRAME;
+		}
 		if (err) {
 			/* report remaining errors, but do not do anything */
 			dd_dev_err(dd, "8051 info error: %s\n",
@@ -4774,13 +7981,25 @@ int read_lcb_csr(struct hfi1_devdata *dd, u32 addr, u64 *data)
  */
 static int write_lcb_via_8051(struct hfi1_devdata *dd, u32 addr, u64 data)
 {
+	u32 regno;
+	int ret;
 
-	if (acquire_lcb_access(dd, 0) == 0) {
-		write_csr(dd, addr, data);
-		release_lcb_access(dd, 0);
-		return 0;
+	if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR ||
+	    (dd->dc8051_ver < dc8051_ver(0, 20))) {
+		if (acquire_lcb_access(dd, 0) == 0) {
+			write_csr(dd, addr, data);
+			release_lcb_access(dd, 0);
+			return 0;
+		}
+		return -EBUSY;
 	}
-	return -EBUSY;
+
+	/* register is an index of LCB registers: (offset - base) / 8 */
+	regno = (addr - DC_LCB_CFG_RUN) >> 3;
+	ret = do_8051_command(dd, HCMD_WRITE_LCB_CSR, regno, &data);
+	if (ret != HCMD_SUCCESS)
+		return -EBUSY;
+	return 0;
 }
 
 /*
@@ -4862,6 +8081,26 @@ static int do_8051_command(
 	 */
 
 	/*
+	 * When writing a LCB CSR, out_data contains the full value to
+	 * to be written, while in_data contains the relative LCB
+	 * address in 7:0.  Do the work here, rather than the caller,
+	 * of distrubting the write data to where it needs to go:
+	 *
+	 * Write data
+	 *   39:00 -> in_data[47:8]
+	 *   47:40 -> DC8051_CFG_EXT_DEV_0.RETURN_CODE
+	 *   63:48 -> DC8051_CFG_EXT_DEV_0.RSP_DATA
+	 */
+	if (type == HCMD_WRITE_LCB_CSR) {
+		in_data |= ((*out_data) & 0xffffffffffull) << 8;
+		reg = ((((*out_data) >> 40) & 0xff) <<
+				DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT)
+		      | ((((*out_data) >> 48) & 0xffff) <<
+				DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT);
+		write_csr(dd, DC_DC8051_CFG_EXT_DEV_0, reg);
+	}
+
+	/*
 	 * Do two writes: the first to stabilize the type and req_data, the
 	 * second to activate.
 	 */
@@ -5856,6 +9095,23 @@ void init_qsfp(struct hfi1_pportdata *ppd)
 	}
 }
 
+/*
+ * Do a one-time initialize of the LCB block.
+ */
+static void init_lcb(struct hfi1_devdata *dd)
+{
+	/* the DC has been reset earlier in the driver load */
+
+	/* set LCB for cclk loopback on the port */
+	write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x01);
+	write_csr(dd, DC_LCB_CFG_LANE_WIDTH, 0x00);
+	write_csr(dd, DC_LCB_CFG_REINIT_AS_SLAVE, 0x00);
+	write_csr(dd, DC_LCB_CFG_CNT_FOR_SKIP_STALL, 0x110);
+	write_csr(dd, DC_LCB_CFG_CLK_CNTR, 0x08);
+	write_csr(dd, DC_LCB_CFG_LOOPBACK, 0x02);
+	write_csr(dd, DC_LCB_CFG_TX_FIFOS_RESET, 0x00);
+}
+
 int bringup_serdes(struct hfi1_pportdata *ppd)
 {
 	struct hfi1_devdata *dd = ppd->dd;
@@ -5877,6 +9133,9 @@ int bringup_serdes(struct hfi1_pportdata *ppd)
 	/* Set linkinit_reason on power up per OPA spec */
 	ppd->linkinit_reason = OPA_LINKINIT_REASON_LINKUP;
 
+	/* one-time init of the LCB */
+	init_lcb(dd);
+
 	if (loopback) {
 		ret = init_loopback(dd);
 		if (ret < 0)
@@ -6148,7 +9407,8 @@ u32 lrh_max_header_bytes(struct hfi1_devdata *dd)
 static void set_send_length(struct hfi1_pportdata *ppd)
 {
 	struct hfi1_devdata *dd = ppd->dd;
-	u32 max_hb = lrh_max_header_bytes(dd), maxvlmtu = 0, dcmtu;
+	u32 max_hb = lrh_max_header_bytes(dd), dcmtu;
+	u32 maxvlmtu = dd->vld[15].mtu;
 	u64 len1 = 0, len2 = (((dd->vld[15].mtu + max_hb) >> 2)
 			      & SEND_LEN_CHECK1_LEN_VL15_MASK) <<
 		SEND_LEN_CHECK1_LEN_VL15_SHIFT;
@@ -6319,9 +9579,10 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
 	 * depending on how the link went down.  The 8051 firmware
 	 * will observe the needed wait time and only move to ready
 	 * when that is completed.  The largest of the quiet timeouts
-	 * is 2.5s, so wait that long and then a bit more.
+	 * is 6s, so wait that long and then at least 0.5s more for
+	 * other transitions, and another 0.5s for a buffer.
 	 */
-	ret = wait_fm_ready(dd, 3000);
+	ret = wait_fm_ready(dd, 7000);
 	if (ret) {
 		dd_dev_err(dd,
 			"After going offline, timed out waiting for the 8051 to become ready to accept host requests\n");
@@ -7235,8 +10496,7 @@ static int set_buffer_control(struct hfi1_devdata *dd,
 		new_bc->vl[i].shared = 0;
 	}
 	new_total += be16_to_cpu(new_bc->overall_shared_limit);
-	if (new_total > (u32)dd->link_credits)
-		return -EINVAL;
+
 	/* fetch the current values */
 	get_buffer_control(dd, &cur_bc, &cur_total);
 
@@ -7282,8 +10542,8 @@ static int set_buffer_control(struct hfi1_devdata *dd,
 	 */
 	use_all_mask = 0;
 	if ((be16_to_cpu(new_bc->overall_shared_limit) <
-				be16_to_cpu(cur_bc.overall_shared_limit))
-			|| (is_a0(dd) && any_shared_limit_changing)) {
+	     be16_to_cpu(cur_bc.overall_shared_limit)) ||
+	    (is_ax(dd) && any_shared_limit_changing)) {
 		set_global_shared(dd, 0);
 		cur_bc.overall_shared_limit = 0;
 		use_all_mask = 1;
@@ -7457,7 +10717,7 @@ int fm_set_table(struct hfi1_pportdata *ppd, int which, void *t)
  */
 static int disable_data_vls(struct hfi1_devdata *dd)
 {
-	if (is_a0(dd))
+	if (is_ax(dd))
 		return 1;
 
 	pio_send_control(dd, PSC_DATA_VL_DISABLE);
@@ -7475,7 +10735,7 @@ static int disable_data_vls(struct hfi1_devdata *dd)
  */
 int open_fill_data_vls(struct hfi1_devdata *dd)
 {
-	if (is_a0(dd))
+	if (is_ax(dd))
 		return 1;
 
 	pio_send_control(dd, PSC_DATA_VL_ENABLE);
@@ -7748,11 +11008,22 @@ void hfi1_rcvctrl(struct hfi1_devdata *dd, unsigned int op, int ctxt)
 					& RCV_TID_CTRL_TID_BASE_INDEX_MASK)
 				<< RCV_TID_CTRL_TID_BASE_INDEX_SHIFT);
 		write_kctxt_csr(dd, ctxt, RCV_TID_CTRL, reg);
-		if (ctxt == VL15CTXT)
-			write_csr(dd, RCV_VL15, VL15CTXT);
+		if (ctxt == HFI1_CTRL_CTXT)
+			write_csr(dd, RCV_VL15, HFI1_CTRL_CTXT);
 	}
 	if (op & HFI1_RCVCTRL_CTXT_DIS) {
 		write_csr(dd, RCV_VL15, 0);
+		/*
+		 * When receive context is being disabled turn on tail
+		 * update with a dummy tail address and then disable
+		 * receive context.
+		 */
+		if (dd->rcvhdrtail_dummy_physaddr) {
+			write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR,
+					dd->rcvhdrtail_dummy_physaddr);
+			rcvctrl |= RCV_CTXT_CTRL_TAIL_UPD_SMASK;
+		}
+
 		rcvctrl &= ~RCV_CTXT_CTRL_ENABLE_SMASK;
 	}
 	if (op & HFI1_RCVCTRL_INTRAVAIL_ENB)
@@ -7822,10 +11093,11 @@ void hfi1_rcvctrl(struct hfi1_devdata *dd, unsigned int op, int ctxt)
 	if (op & (HFI1_RCVCTRL_TAILUPD_DIS | HFI1_RCVCTRL_CTXT_DIS))
 		/*
 		 * If the context has been disabled and the Tail Update has
-		 * been cleared, clear the RCV_HDR_TAIL_ADDR CSR so
-		 * it doesn't contain an address that is invalid.
+		 * been cleared, set the RCV_HDR_TAIL_ADDR CSR to dummy address
+		 * so it doesn't contain an address that is invalid.
 		 */
-		write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR, 0);
+		write_kctxt_csr(dd, ctxt, RCV_HDR_TAIL_ADDR,
+				dd->rcvhdrtail_dummy_physaddr);
 }
 
 u32 hfi1_read_cntrs(struct hfi1_devdata *dd, loff_t pos, char **namep,
@@ -8785,7 +12057,7 @@ static void clean_up_interrupts(struct hfi1_devdata *dd)
 	/* turn off interrupts */
 	if (dd->num_msix_entries) {
 		/* MSI-X */
-		hfi1_nomsix(dd);
+		pci_disable_msix(dd->pcidev);
 	} else {
 		/* INTx */
 		disable_intx(dd->pcidev);
@@ -8840,18 +12112,12 @@ static void remap_sdma_interrupts(struct hfi1_devdata *dd,
 		msix_intr);
 }
 
-static void remap_receive_available_interrupt(struct hfi1_devdata *dd,
-					      int rx, int msix_intr)
-{
-	remap_intr(dd, IS_RCVAVAIL_START + rx, msix_intr);
-}
-
 static int request_intx_irq(struct hfi1_devdata *dd)
 {
 	int ret;
 
-	snprintf(dd->intx_name, sizeof(dd->intx_name), DRIVER_NAME"_%d",
-		dd->unit);
+	snprintf(dd->intx_name, sizeof(dd->intx_name), DRIVER_NAME "_%d",
+		 dd->unit);
 	ret = request_irq(dd->pcidev->irq, general_interrupt,
 				  IRQF_SHARED, dd->intx_name, dd);
 	if (ret)
@@ -8870,7 +12136,7 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 	int first_general, last_general;
 	int first_sdma, last_sdma;
 	int first_rx, last_rx;
-	int first_cpu, restart_cpu, curr_cpu;
+	int first_cpu, curr_cpu;
 	int rcv_cpu, sdma_cpu;
 	int i, ret = 0, possible;
 	int ht;
@@ -8909,22 +12175,19 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 			topology_sibling_cpumask(cpumask_first(local_mask)));
 	for (i = possible/ht; i < possible; i++)
 		cpumask_clear_cpu(i, def);
-	/* reset possible */
-	possible = cpumask_weight(def);
 	/* def now has full cores on chosen node*/
 	first_cpu = cpumask_first(def);
 	if (nr_cpu_ids >= first_cpu)
 		first_cpu++;
-	restart_cpu = first_cpu;
-	curr_cpu = restart_cpu;
+	curr_cpu = first_cpu;
 
-	for (i = first_cpu; i < dd->n_krcv_queues + first_cpu; i++) {
+	/*  One context is reserved as control context */
+	for (i = first_cpu; i < dd->n_krcv_queues + first_cpu - 1; i++) {
 		cpumask_clear_cpu(curr_cpu, def);
 		cpumask_set_cpu(curr_cpu, rcv);
-		if (curr_cpu >= possible)
-			curr_cpu = restart_cpu;
-		else
-			curr_cpu++;
+		curr_cpu = cpumask_next(curr_cpu, def);
+		if (curr_cpu >= nr_cpu_ids)
+			break;
 	}
 	/* def mask has non-rcv, rcv has recv mask */
 	rcv_cpu = cpumask_first(rcv);
@@ -8953,7 +12216,7 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 			handler = general_interrupt;
 			arg = dd;
 			snprintf(me->name, sizeof(me->name),
-				DRIVER_NAME"_%d", dd->unit);
+				 DRIVER_NAME "_%d", dd->unit);
 			err_info = "general";
 		} else if (first_sdma <= i && i < last_sdma) {
 			idx = i - first_sdma;
@@ -8961,7 +12224,7 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 			handler = sdma_interrupt;
 			arg = sde;
 			snprintf(me->name, sizeof(me->name),
-				DRIVER_NAME"_%d sdma%d", dd->unit, idx);
+				 DRIVER_NAME "_%d sdma%d", dd->unit, idx);
 			err_info = "sdma";
 			remap_sdma_interrupts(dd, idx, i);
 		} else if (first_rx <= i && i < last_rx) {
@@ -8981,9 +12244,9 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 			thread = receive_context_thread;
 			arg = rcd;
 			snprintf(me->name, sizeof(me->name),
-				DRIVER_NAME"_%d kctxt%d", dd->unit, idx);
+				 DRIVER_NAME "_%d kctxt%d", dd->unit, idx);
 			err_info = "receive context";
-			remap_receive_available_interrupt(dd, idx, i);
+			remap_intr(dd, IS_RCVAVAIL_START + idx, i);
 		} else {
 			/* not in our expected range - complain, then
 			   ignore it */
@@ -9018,17 +12281,26 @@ static int request_msix_irqs(struct hfi1_devdata *dd)
 		if (handler == sdma_interrupt) {
 			dd_dev_info(dd, "sdma engine %d cpu %d\n",
 				sde->this_idx, sdma_cpu);
+			sde->cpu = sdma_cpu;
 			cpumask_set_cpu(sdma_cpu, dd->msix_entries[i].mask);
 			sdma_cpu = cpumask_next(sdma_cpu, def);
 			if (sdma_cpu >= nr_cpu_ids)
 				sdma_cpu = cpumask_first(def);
 		} else if (handler == receive_context_interrupt) {
-			dd_dev_info(dd, "rcv ctxt %d cpu %d\n",
-				rcd->ctxt, rcv_cpu);
-			cpumask_set_cpu(rcv_cpu, dd->msix_entries[i].mask);
-			rcv_cpu = cpumask_next(rcv_cpu, rcv);
-			if (rcv_cpu >= nr_cpu_ids)
-				rcv_cpu = cpumask_first(rcv);
+			dd_dev_info(dd, "rcv ctxt %d cpu %d\n", rcd->ctxt,
+				    (rcd->ctxt == HFI1_CTRL_CTXT) ?
+					    cpumask_first(def) : rcv_cpu);
+			if (rcd->ctxt == HFI1_CTRL_CTXT) {
+				/* map to first default */
+				cpumask_set_cpu(cpumask_first(def),
+						dd->msix_entries[i].mask);
+			} else {
+				cpumask_set_cpu(rcv_cpu,
+						dd->msix_entries[i].mask);
+				rcv_cpu = cpumask_next(rcv_cpu, rcv);
+				if (rcv_cpu >= nr_cpu_ids)
+					rcv_cpu = cpumask_first(rcv);
+			}
 		} else {
 			/* otherwise first def */
 			dd_dev_info(dd, "%s cpu %d\n",
@@ -9153,7 +12425,6 @@ fail:
 static int set_up_context_variables(struct hfi1_devdata *dd)
 {
 	int num_kernel_contexts;
-	int num_user_contexts;
 	int total_contexts;
 	int ret;
 	unsigned ngroups;
@@ -9161,11 +12432,18 @@ static int set_up_context_variables(struct hfi1_devdata *dd)
 	/*
 	 * Kernel contexts: (to be fixed later):
 	 * - min or 2 or 1 context/numa
-	 * - Context 0 - default/errors
-	 * - Context 1 - VL15
+	 * - Context 0 - control context (VL15/multicast/error)
+	 * - Context 1 - default context
 	 */
 	if (n_krcvqs)
-		num_kernel_contexts = n_krcvqs + MIN_KERNEL_KCTXTS;
+		/*
+		 * Don't count context 0 in n_krcvqs since
+		 * is isn't used for normal verbs traffic.
+		 *
+		 * krcvqs will reflect number of kernel
+		 * receive contexts above 0.
+		 */
+		num_kernel_contexts = n_krcvqs + MIN_KERNEL_KCTXTS - 1;
 	else
 		num_kernel_contexts = num_online_nodes();
 	num_kernel_contexts =
@@ -9183,12 +12461,10 @@ static int set_up_context_variables(struct hfi1_devdata *dd)
 	}
 	/*
 	 * User contexts: (to be fixed later)
-	 *	- set to num_rcv_contexts if non-zero
-	 *	- default to 1 user context per CPU
+	 *	- default to 1 user context per CPU if num_user_contexts is
+	 *	  negative
 	 */
-	if (num_rcv_contexts)
-		num_user_contexts = num_rcv_contexts;
-	else
+	if (num_user_contexts < 0)
 		num_user_contexts = num_online_cpus();
 
 	total_contexts = num_kernel_contexts + num_user_contexts;
@@ -9455,7 +12731,7 @@ static void reset_asic_csrs(struct hfi1_devdata *dd)
 	/* We might want to retain this state across FLR if we ever use it */
 	write_csr(dd, ASIC_CFG_DRV_STR, 0);
 
-	write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0);
+	/* ASIC_CFG_THERM_POLL_EN leave alone */
 	/* ASIC_STS_THERM read-only */
 	/* ASIC_CFG_RESET leave alone */
 
@@ -9906,7 +13182,7 @@ static void init_chip(struct hfi1_devdata *dd)
 		/* restore command and BARs */
 		restore_pci_variables(dd);
 
-		if (is_a0(dd)) {
+		if (is_ax(dd)) {
 			dd_dev_info(dd, "Resetting CSRs with FLR\n");
 			hfi1_pcie_flr(dd);
 			restore_pci_variables(dd);
@@ -9925,23 +13201,20 @@ static void init_chip(struct hfi1_devdata *dd)
 	write_csr(dd, CCE_DC_CTRL, 0);
 
 	/* Set the LED off */
-	if (is_a0(dd))
+	if (is_ax(dd))
 		setextled(dd, 0);
 	/*
 	 * Clear the QSFP reset.
-	 * A0 leaves the out lines floating on power on, then on an FLR
-	 * enforces a 0 on all out pins.  The driver does not touch
+	 * An FLR enforces a 0 on all out pins. The driver does not touch
 	 * ASIC_QSFPn_OUT otherwise.  This leaves RESET_N low and
-	 * anything  plugged constantly in reset, if it pays attention
+	 * anything plugged constantly in reset, if it pays attention
 	 * to RESET_N.
-	 * A prime example of this is SiPh. For now, set all pins high.
+	 * Prime examples of this are optical cables. Set all pins high.
 	 * I2CCLK and I2CDAT will change per direction, and INT_N and
 	 * MODPRS_N are input only and their value is ignored.
 	 */
-	if (is_a0(dd)) {
-		write_csr(dd, ASIC_QSFP1_OUT, 0x1f);
-		write_csr(dd, ASIC_QSFP2_OUT, 0x1f);
-	}
+	write_csr(dd, ASIC_QSFP1_OUT, 0x1f);
+	write_csr(dd, ASIC_QSFP2_OUT, 0x1f);
 }
 
 static void init_early_variables(struct hfi1_devdata *dd)
@@ -9951,7 +13224,7 @@ static void init_early_variables(struct hfi1_devdata *dd)
 	/* assign link credit variables */
 	dd->vau = CM_VAU;
 	dd->link_credits = CM_GLOBAL_CREDITS;
-	if (is_a0(dd))
+	if (is_ax(dd))
 		dd->link_credits--;
 	dd->vcu = cu_to_vcu(hfi1_cu);
 	/* enough room for 8 MAD packets plus header - 17K */
@@ -10017,12 +13290,6 @@ static void init_qpmap_table(struct hfi1_devdata *dd,
 	u64 ctxt = first_ctxt;
 
 	for (i = 0; i < 256;) {
-		if (ctxt == VL15CTXT) {
-			ctxt++;
-			if (ctxt > last_ctxt)
-				ctxt = first_ctxt;
-			continue;
-		}
 		reg |= ctxt << (8 * (i % 8));
 		i++;
 		ctxt++;
@@ -10065,7 +13332,7 @@ static void init_qos(struct hfi1_devdata *dd, u32 first_ctxt)
 	unsigned qpns_per_vl, ctxt, i, qpn, n = 1, m;
 	u64 *rsmmap;
 	u64 reg;
-	u8  rxcontext = is_a0(dd) ? 0 : 0xff;  /* 0 is default if a0 ver. */
+	u8  rxcontext = is_ax(dd) ? 0 : 0xff;  /* 0 is default if a0 ver. */
 
 	/* validate */
 	if (dd->n_krcv_queues <= MIN_KERNEL_KCTXTS ||
@@ -10087,6 +13354,8 @@ static void init_qos(struct hfi1_devdata *dd, u32 first_ctxt)
 	if (num_vls * qpns_per_vl > dd->chip_rcv_contexts)
 		goto bail;
 	rsmmap = kmalloc_array(NUM_MAP_REGS, sizeof(u64), GFP_KERNEL);
+	if (!rsmmap)
+		goto bail;
 	memset(rsmmap, rxcontext, NUM_MAP_REGS * sizeof(u64));
 	/* init the local copy of the table */
 	for (i = 0, ctxt = first_ctxt; i < num_vls; i++) {
@@ -10135,19 +13404,13 @@ static void init_qos(struct hfi1_devdata *dd, u32 first_ctxt)
 	/* Enable RSM */
 	add_rcvctrl(dd, RCV_CTRL_RCV_RSM_ENABLE_SMASK);
 	kfree(rsmmap);
-	/* map everything else (non-VL15) to context 0 */
-	init_qpmap_table(
-		dd,
-		0,
-		0);
+	/* map everything else to first context */
+	init_qpmap_table(dd, FIRST_KERNEL_KCTXT, MIN_KERNEL_KCTXTS - 1);
 	dd->qos_shift = n + 1;
 	return;
 bail:
 	dd->qos_shift = 1;
-	init_qpmap_table(
-		dd,
-		dd->n_krcv_queues > MIN_KERNEL_KCTXTS ? MIN_KERNEL_KCTXTS : 0,
-		dd->n_krcv_queues - 1);
+	init_qpmap_table(dd, FIRST_KERNEL_KCTXT, dd->n_krcv_queues - 1);
 }
 
 static void init_rxe(struct hfi1_devdata *dd)
@@ -10276,7 +13539,7 @@ int hfi1_set_ctxt_jkey(struct hfi1_devdata *dd, unsigned ctxt, u16 jkey)
 	 * Enable send-side J_KEY integrity check, unless this is A0 h/w
 	 * (due to A0 erratum).
 	 */
-	if (!is_a0(dd)) {
+	if (!is_ax(dd)) {
 		reg = read_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE);
 		reg |= SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK;
 		write_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE, reg);
@@ -10309,7 +13572,7 @@ int hfi1_clear_ctxt_jkey(struct hfi1_devdata *dd, unsigned ctxt)
 	 * This check would not have been enabled for A0 h/w, see
 	 * set_ctxt_jkey().
 	 */
-	if (!is_a0(dd)) {
+	if (!is_ax(dd)) {
 		reg = read_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE);
 		reg &= ~SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK;
 		write_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE, reg);
@@ -10418,6 +13681,32 @@ static void asic_should_init(struct hfi1_devdata *dd)
 	spin_unlock_irqrestore(&hfi1_devs_lock, flags);
 }
 
+/*
+ * Set dd->boardname.  Use a generic name if a name is not returned from
+ * EFI variable space.
+ *
+ * Return 0 on success, -ENOMEM if space could not be allocated.
+ */
+static int obtain_boardname(struct hfi1_devdata *dd)
+{
+	/* generic board description */
+	const char generic[] =
+		"Intel Omni-Path Host Fabric Interface Adapter 100 Series";
+	unsigned long size;
+	int ret;
+
+	ret = read_hfi1_efi_var(dd, "description", &size,
+				(void **)&dd->boardname);
+	if (ret) {
+		dd_dev_err(dd, "Board description not found\n");
+		/* use generic description */
+		dd->boardname = kstrdup(generic, GFP_KERNEL);
+		if (!dd->boardname)
+			return -ENOMEM;
+	}
+	return 0;
+}
+
 /**
  * Allocate and initialize the device structure for the hfi.
  * @dev: the pci_dev for hfi1_ib device
@@ -10554,9 +13843,9 @@ struct hfi1_devdata *hfi1_init_dd(struct pci_dev *pdev,
 	/* insure num_vls isn't larger than number of sdma engines */
 	if (HFI1_CAP_IS_KSET(SDMA) && num_vls > dd->chip_sdma_engines) {
 		dd_dev_err(dd, "num_vls %u too large, using %u VLs\n",
-				num_vls, HFI1_MAX_VLS_SUPPORTED);
-		ppd->vls_supported = num_vls = HFI1_MAX_VLS_SUPPORTED;
-		ppd->vls_operational = ppd->vls_supported;
+			   num_vls, dd->chip_sdma_engines);
+		num_vls = dd->chip_sdma_engines;
+		ppd->vls_supported = dd->chip_sdma_engines;
 	}
 
 	/*
@@ -10615,18 +13904,13 @@ struct hfi1_devdata *hfi1_init_dd(struct pci_dev *pdev,
 
 	parse_platform_config(dd);
 
-	/* add board names as they are defined */
-	dd->boardname = kmalloc(64, GFP_KERNEL);
-	if (!dd->boardname)
+	ret = obtain_boardname(dd);
+	if (ret)
 		goto bail_cleanup;
-	snprintf(dd->boardname, 64, "Board ID 0x%llx",
-		 dd->revision >> CCE_REVISION_BOARD_ID_LOWER_NIBBLE_SHIFT
-		    & CCE_REVISION_BOARD_ID_LOWER_NIBBLE_MASK);
 
 	snprintf(dd->boardversion, BOARD_VERS_MAX,
-		 "ChipABI %u.%u, %s, ChipRev %u.%u, SW Compat %llu\n",
+		 "ChipABI %u.%u, ChipRev %u.%u, SW Compat %llu\n",
 		 HFI1_CHIP_VERS_MAJ, HFI1_CHIP_VERS_MIN,
-		 dd->boardname,
 		 (u32)dd->majrev,
 		 (u32)dd->minrev,
 		 (dd->revision >> CCE_REVISION_SW_SHIFT)
@@ -10803,7 +14087,9 @@ static int thermal_init(struct hfi1_devdata *dd)
 
 	acquire_hw_mutex(dd);
 	dd_dev_info(dd, "Initializing thermal sensor\n");
-
+	/* Disable polling of thermal readings */
+	write_csr(dd, ASIC_CFG_THERM_POLL_EN, 0x0);
+	msleep(100);
 	/* Thermal Sensor Initialization */
 	/*    Step 1: Reset the Thermal SBus Receiver */
 	ret = sbus_request_slow(dd, SBUS_THERMAL, 0x0,
diff --git a/drivers/staging/rdma/hfi1/chip.h b/drivers/staging/rdma/hfi1/chip.h
index ebf9041a1c5e..5b375ddc345d 100644
--- a/drivers/staging/rdma/hfi1/chip.h
+++ b/drivers/staging/rdma/hfi1/chip.h
@@ -235,6 +235,7 @@
 #define HCMD_MISC		   0x05
 #define HCMD_READ_LCB_IDLE_MSG 0x06
 #define HCMD_READ_LCB_CSR      0x07
+#define HCMD_WRITE_LCB_CSR     0x08
 #define HCMD_INTERFACE_TEST	   0xff
 
 /* DC_DC8051_CFG_HOST_CMD_1.RETURN_CODE - 8051 host command return */
@@ -663,7 +664,6 @@ void get_linkup_link_widths(struct hfi1_pportdata *ppd);
 void read_ltp_rtt(struct hfi1_devdata *dd);
 void clear_linkup_counters(struct hfi1_devdata *dd);
 u32 hdrqempty(struct hfi1_ctxtdata *rcd);
-int is_a0(struct hfi1_devdata *dd);
 int is_ax(struct hfi1_devdata *dd);
 int is_bx(struct hfi1_devdata *dd);
 u32 read_physical_state(struct hfi1_devdata *dd);
@@ -721,7 +721,6 @@ enum {
 	C_RX_TID_FULL,
 	C_RX_TID_INVALID,
 	C_RX_TID_FLGMS,
-	C_RX_CTX_RHQS,
 	C_RX_CTX_EGRS,
 	C_RCV_TID_FLSMS,
 	C_CCE_PCI_CR_ST,
@@ -788,6 +787,275 @@ enum {
 	C_SW_PIO_WAIT,
 	C_SW_KMEM_WAIT,
 	C_SW_SEND_SCHED,
+/* MISC_ERR_STATUS */
+	C_MISC_PLL_LOCK_FAIL_ERR,
+	C_MISC_MBIST_FAIL_ERR,
+	C_MISC_INVALID_EEP_CMD_ERR,
+	C_MISC_EFUSE_DONE_PARITY_ERR,
+	C_MISC_EFUSE_WRITE_ERR,
+	C_MISC_EFUSE_READ_BAD_ADDR_ERR,
+	C_MISC_EFUSE_CSR_PARITY_ERR,
+	C_MISC_FW_AUTH_FAILED_ERR,
+	C_MISC_KEY_MISMATCH_ERR,
+	C_MISC_SBUS_WRITE_FAILED_ERR,
+	C_MISC_CSR_WRITE_BAD_ADDR_ERR,
+	C_MISC_CSR_READ_BAD_ADDR_ERR,
+	C_MISC_CSR_PARITY_ERR,
+/* CceErrStatus */
+	/*
+	* A special counter that is the aggregate count
+	* of all the cce_err_status errors.  The remainder
+	* are actual bits in the CceErrStatus register.
+	*/
+	C_CCE_ERR_STATUS_AGGREGATED_CNT,
+	C_CCE_MSIX_CSR_PARITY_ERR,
+	C_CCE_INT_MAP_UNC_ERR,
+	C_CCE_INT_MAP_COR_ERR,
+	C_CCE_MSIX_TABLE_UNC_ERR,
+	C_CCE_MSIX_TABLE_COR_ERR,
+	C_CCE_RXDMA_CONV_FIFO_PARITY_ERR,
+	C_CCE_RCPL_ASYNC_FIFO_PARITY_ERR,
+	C_CCE_SEG_WRITE_BAD_ADDR_ERR,
+	C_CCE_SEG_READ_BAD_ADDR_ERR,
+	C_LA_TRIGGERED,
+	C_CCE_TRGT_CPL_TIMEOUT_ERR,
+	C_PCIC_RECEIVE_PARITY_ERR,
+	C_PCIC_TRANSMIT_BACK_PARITY_ERR,
+	C_PCIC_TRANSMIT_FRONT_PARITY_ERR,
+	C_PCIC_CPL_DAT_Q_UNC_ERR,
+	C_PCIC_CPL_HD_Q_UNC_ERR,
+	C_PCIC_POST_DAT_Q_UNC_ERR,
+	C_PCIC_POST_HD_Q_UNC_ERR,
+	C_PCIC_RETRY_SOT_MEM_UNC_ERR,
+	C_PCIC_RETRY_MEM_UNC_ERR,
+	C_PCIC_N_POST_DAT_Q_PARITY_ERR,
+	C_PCIC_N_POST_H_Q_PARITY_ERR,
+	C_PCIC_CPL_DAT_Q_COR_ERR,
+	C_PCIC_CPL_HD_Q_COR_ERR,
+	C_PCIC_POST_DAT_Q_COR_ERR,
+	C_PCIC_POST_HD_Q_COR_ERR,
+	C_PCIC_RETRY_SOT_MEM_COR_ERR,
+	C_PCIC_RETRY_MEM_COR_ERR,
+	C_CCE_CLI1_ASYNC_FIFO_DBG_PARITY_ERR,
+	C_CCE_CLI1_ASYNC_FIFO_RXDMA_PARITY_ERR,
+	C_CCE_CLI1_ASYNC_FIFO_SDMA_HD_PARITY_ERR,
+	C_CCE_CLI1_ASYNC_FIFO_PIO_CRDT_PARITY_ERR,
+	C_CCE_CLI2_ASYNC_FIFO_PARITY_ERR,
+	C_CCE_CSR_CFG_BUS_PARITY_ERR,
+	C_CCE_CLI0_ASYNC_FIFO_PARTIY_ERR,
+	C_CCE_RSPD_DATA_PARITY_ERR,
+	C_CCE_TRGT_ACCESS_ERR,
+	C_CCE_TRGT_ASYNC_FIFO_PARITY_ERR,
+	C_CCE_CSR_WRITE_BAD_ADDR_ERR,
+	C_CCE_CSR_READ_BAD_ADDR_ERR,
+	C_CCE_CSR_PARITY_ERR,
+/* RcvErrStatus */
+	C_RX_CSR_PARITY_ERR,
+	C_RX_CSR_WRITE_BAD_ADDR_ERR,
+	C_RX_CSR_READ_BAD_ADDR_ERR,
+	C_RX_DMA_CSR_UNC_ERR,
+	C_RX_DMA_DQ_FSM_ENCODING_ERR,
+	C_RX_DMA_EQ_FSM_ENCODING_ERR,
+	C_RX_DMA_CSR_PARITY_ERR,
+	C_RX_RBUF_DATA_COR_ERR,
+	C_RX_RBUF_DATA_UNC_ERR,
+	C_RX_DMA_DATA_FIFO_RD_COR_ERR,
+	C_RX_DMA_DATA_FIFO_RD_UNC_ERR,
+	C_RX_DMA_HDR_FIFO_RD_COR_ERR,
+	C_RX_DMA_HDR_FIFO_RD_UNC_ERR,
+	C_RX_RBUF_DESC_PART2_COR_ERR,
+	C_RX_RBUF_DESC_PART2_UNC_ERR,
+	C_RX_RBUF_DESC_PART1_COR_ERR,
+	C_RX_RBUF_DESC_PART1_UNC_ERR,
+	C_RX_HQ_INTR_FSM_ERR,
+	C_RX_HQ_INTR_CSR_PARITY_ERR,
+	C_RX_LOOKUP_CSR_PARITY_ERR,
+	C_RX_LOOKUP_RCV_ARRAY_COR_ERR,
+	C_RX_LOOKUP_RCV_ARRAY_UNC_ERR,
+	C_RX_LOOKUP_DES_PART2_PARITY_ERR,
+	C_RX_LOOKUP_DES_PART1_UNC_COR_ERR,
+	C_RX_LOOKUP_DES_PART1_UNC_ERR,
+	C_RX_RBUF_NEXT_FREE_BUF_COR_ERR,
+	C_RX_RBUF_NEXT_FREE_BUF_UNC_ERR,
+	C_RX_RBUF_FL_INIT_WR_ADDR_PARITY_ERR,
+	C_RX_RBUF_FL_INITDONE_PARITY_ERR,
+	C_RX_RBUF_FL_WRITE_ADDR_PARITY_ERR,
+	C_RX_RBUF_FL_RD_ADDR_PARITY_ERR,
+	C_RX_RBUF_EMPTY_ERR,
+	C_RX_RBUF_FULL_ERR,
+	C_RX_RBUF_BAD_LOOKUP_ERR,
+	C_RX_RBUF_CTX_ID_PARITY_ERR,
+	C_RX_RBUF_CSR_QEOPDW_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_NUM_OF_PKT_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_T1_PTR_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_HD_PTR_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_VLD_BIT_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_NEXT_BUF_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_ENT_CNT_PARITY_ERR,
+	C_RX_RBUF_CSR_Q_HEAD_BUF_NUM_PARITY_ERR,
+	C_RX_RBUF_BLOCK_LIST_READ_COR_ERR,
+	C_RX_RBUF_BLOCK_LIST_READ_UNC_ERR,
+	C_RX_RBUF_LOOKUP_DES_COR_ERR,
+	C_RX_RBUF_LOOKUP_DES_UNC_ERR,
+	C_RX_RBUF_LOOKUP_DES_REG_UNC_COR_ERR,
+	C_RX_RBUF_LOOKUP_DES_REG_UNC_ERR,
+	C_RX_RBUF_FREE_LIST_COR_ERR,
+	C_RX_RBUF_FREE_LIST_UNC_ERR,
+	C_RX_RCV_FSM_ENCODING_ERR,
+	C_RX_DMA_FLAG_COR_ERR,
+	C_RX_DMA_FLAG_UNC_ERR,
+	C_RX_DC_SOP_EOP_PARITY_ERR,
+	C_RX_RCV_CSR_PARITY_ERR,
+	C_RX_RCV_QP_MAP_TABLE_COR_ERR,
+	C_RX_RCV_QP_MAP_TABLE_UNC_ERR,
+	C_RX_RCV_DATA_COR_ERR,
+	C_RX_RCV_DATA_UNC_ERR,
+	C_RX_RCV_HDR_COR_ERR,
+	C_RX_RCV_HDR_UNC_ERR,
+	C_RX_DC_INTF_PARITY_ERR,
+	C_RX_DMA_CSR_COR_ERR,
+/* SendPioErrStatus */
+	C_PIO_PEC_SOP_HEAD_PARITY_ERR,
+	C_PIO_PCC_SOP_HEAD_PARITY_ERR,
+	C_PIO_LAST_RETURNED_CNT_PARITY_ERR,
+	C_PIO_CURRENT_FREE_CNT_PARITY_ERR,
+	C_PIO_RSVD_31_ERR,
+	C_PIO_RSVD_30_ERR,
+	C_PIO_PPMC_SOP_LEN_ERR,
+	C_PIO_PPMC_BQC_MEM_PARITY_ERR,
+	C_PIO_VL_FIFO_PARITY_ERR,
+	C_PIO_VLF_SOP_PARITY_ERR,
+	C_PIO_VLF_V1_LEN_PARITY_ERR,
+	C_PIO_BLOCK_QW_COUNT_PARITY_ERR,
+	C_PIO_WRITE_QW_VALID_PARITY_ERR,
+	C_PIO_STATE_MACHINE_ERR,
+	C_PIO_WRITE_DATA_PARITY_ERR,
+	C_PIO_HOST_ADDR_MEM_COR_ERR,
+	C_PIO_HOST_ADDR_MEM_UNC_ERR,
+	C_PIO_PKT_EVICT_SM_OR_ARM_SM_ERR,
+	C_PIO_INIT_SM_IN_ERR,
+	C_PIO_PPMC_PBL_FIFO_ERR,
+	C_PIO_CREDIT_RET_FIFO_PARITY_ERR,
+	C_PIO_V1_LEN_MEM_BANK1_COR_ERR,
+	C_PIO_V1_LEN_MEM_BANK0_COR_ERR,
+	C_PIO_V1_LEN_MEM_BANK1_UNC_ERR,
+	C_PIO_V1_LEN_MEM_BANK0_UNC_ERR,
+	C_PIO_SM_PKT_RESET_PARITY_ERR,
+	C_PIO_PKT_EVICT_FIFO_PARITY_ERR,
+	C_PIO_SBRDCTRL_CRREL_FIFO_PARITY_ERR,
+	C_PIO_SBRDCTL_CRREL_PARITY_ERR,
+	C_PIO_PEC_FIFO_PARITY_ERR,
+	C_PIO_PCC_FIFO_PARITY_ERR,
+	C_PIO_SB_MEM_FIFO1_ERR,
+	C_PIO_SB_MEM_FIFO0_ERR,
+	C_PIO_CSR_PARITY_ERR,
+	C_PIO_WRITE_ADDR_PARITY_ERR,
+	C_PIO_WRITE_BAD_CTXT_ERR,
+/* SendDmaErrStatus */
+	C_SDMA_PCIE_REQ_TRACKING_COR_ERR,
+	C_SDMA_PCIE_REQ_TRACKING_UNC_ERR,
+	C_SDMA_CSR_PARITY_ERR,
+	C_SDMA_RPY_TAG_ERR,
+/* SendEgressErrStatus */
+	C_TX_READ_PIO_MEMORY_CSR_UNC_ERR,
+	C_TX_READ_SDMA_MEMORY_CSR_UNC_ERR,
+	C_TX_EGRESS_FIFO_COR_ERR,
+	C_TX_READ_PIO_MEMORY_COR_ERR,
+	C_TX_READ_SDMA_MEMORY_COR_ERR,
+	C_TX_SB_HDR_COR_ERR,
+	C_TX_CREDIT_OVERRUN_ERR,
+	C_TX_LAUNCH_FIFO8_COR_ERR,
+	C_TX_LAUNCH_FIFO7_COR_ERR,
+	C_TX_LAUNCH_FIFO6_COR_ERR,
+	C_TX_LAUNCH_FIFO5_COR_ERR,
+	C_TX_LAUNCH_FIFO4_COR_ERR,
+	C_TX_LAUNCH_FIFO3_COR_ERR,
+	C_TX_LAUNCH_FIFO2_COR_ERR,
+	C_TX_LAUNCH_FIFO1_COR_ERR,
+	C_TX_LAUNCH_FIFO0_COR_ERR,
+	C_TX_CREDIT_RETURN_VL_ERR,
+	C_TX_HCRC_INSERTION_ERR,
+	C_TX_EGRESS_FIFI_UNC_ERR,
+	C_TX_READ_PIO_MEMORY_UNC_ERR,
+	C_TX_READ_SDMA_MEMORY_UNC_ERR,
+	C_TX_SB_HDR_UNC_ERR,
+	C_TX_CREDIT_RETURN_PARITY_ERR,
+	C_TX_LAUNCH_FIFO8_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO7_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO6_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO5_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO4_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO3_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO2_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO1_UNC_OR_PARITY_ERR,
+	C_TX_LAUNCH_FIFO0_UNC_OR_PARITY_ERR,
+	C_TX_SDMA15_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA14_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA13_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA12_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA11_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA10_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA9_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA8_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA7_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA6_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA5_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA4_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA3_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA2_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA1_DISALLOWED_PACKET_ERR,
+	C_TX_SDMA0_DISALLOWED_PACKET_ERR,
+	C_TX_CONFIG_PARITY_ERR,
+	C_TX_SBRD_CTL_CSR_PARITY_ERR,
+	C_TX_LAUNCH_CSR_PARITY_ERR,
+	C_TX_ILLEGAL_CL_ERR,
+	C_TX_SBRD_CTL_STATE_MACHINE_PARITY_ERR,
+	C_TX_RESERVED_10,
+	C_TX_RESERVED_9,
+	C_TX_SDMA_LAUNCH_INTF_PARITY_ERR,
+	C_TX_PIO_LAUNCH_INTF_PARITY_ERR,
+	C_TX_RESERVED_6,
+	C_TX_INCORRECT_LINK_STATE_ERR,
+	C_TX_LINK_DOWN_ERR,
+	C_TX_EGRESS_FIFO_UNDERRUN_OR_PARITY_ERR,
+	C_TX_RESERVED_2,
+	C_TX_PKT_INTEGRITY_MEM_UNC_ERR,
+	C_TX_PKT_INTEGRITY_MEM_COR_ERR,
+/* SendErrStatus */
+	C_SEND_CSR_WRITE_BAD_ADDR_ERR,
+	C_SEND_CSR_READ_BAD_ADD_ERR,
+	C_SEND_CSR_PARITY_ERR,
+/* SendCtxtErrStatus */
+	C_PIO_WRITE_OUT_OF_BOUNDS_ERR,
+	C_PIO_WRITE_OVERFLOW_ERR,
+	C_PIO_WRITE_CROSSES_BOUNDARY_ERR,
+	C_PIO_DISALLOWED_PACKET_ERR,
+	C_PIO_INCONSISTENT_SOP_ERR,
+/*SendDmaEngErrStatus */
+	C_SDMA_HEADER_REQUEST_FIFO_COR_ERR,
+	C_SDMA_HEADER_STORAGE_COR_ERR,
+	C_SDMA_PACKET_TRACKING_COR_ERR,
+	C_SDMA_ASSEMBLY_COR_ERR,
+	C_SDMA_DESC_TABLE_COR_ERR,
+	C_SDMA_HEADER_REQUEST_FIFO_UNC_ERR,
+	C_SDMA_HEADER_STORAGE_UNC_ERR,
+	C_SDMA_PACKET_TRACKING_UNC_ERR,
+	C_SDMA_ASSEMBLY_UNC_ERR,
+	C_SDMA_DESC_TABLE_UNC_ERR,
+	C_SDMA_TIMEOUT_ERR,
+	C_SDMA_HEADER_LENGTH_ERR,
+	C_SDMA_HEADER_ADDRESS_ERR,
+	C_SDMA_HEADER_SELECT_ERR,
+	C_SMDA_RESERVED_9,
+	C_SDMA_PACKET_DESC_OVERFLOW_ERR,
+	C_SDMA_LENGTH_MISMATCH_ERR,
+	C_SDMA_HALT_ERR,
+	C_SDMA_MEM_READ_ERR,
+	C_SDMA_FIRST_DESC_ERR,
+	C_SDMA_TAIL_OUT_OF_BOUNDS_ERR,
+	C_SDMA_TOO_LONG_ERR,
+	C_SDMA_GEN_MISMATCH_ERR,
+	C_SDMA_WRONG_DW_ERR,
 	DEV_CNTR_LAST  /* Must be kept last */
 };
 
@@ -810,6 +1078,7 @@ enum {
 	C_RX_WORDS,
 	C_SW_LINK_DOWN,
 	C_SW_LINK_UP,
+	C_SW_UNKNOWN_FRAME,
 	C_SW_XMIT_DSCD,
 	C_SW_XMIT_DSCD_VL,
 	C_SW_XMIT_CSTR_ERR,
diff --git a/drivers/staging/rdma/hfi1/chip_registers.h b/drivers/staging/rdma/hfi1/chip_registers.h
index bf45de29d8bd..701e9e1012a6 100644
--- a/drivers/staging/rdma/hfi1/chip_registers.h
+++ b/drivers/staging/rdma/hfi1/chip_registers.h
@@ -318,6 +318,9 @@
 #define DC_LCB_CFG_TX_FIFOS_RADR_RST_VAL_SHIFT 0
 #define DC_LCB_CFG_TX_FIFOS_RESET (DC_LCB_CSRS + 0x000000000008)
 #define DC_LCB_CFG_TX_FIFOS_RESET_VAL_SHIFT 0
+#define DC_LCB_CFG_REINIT_AS_SLAVE (DC_LCB_CSRS + 0x000000000030)
+#define DC_LCB_CFG_CNT_FOR_SKIP_STALL (DC_LCB_CSRS + 0x000000000040)
+#define DC_LCB_CFG_CLK_CNTR (DC_LCB_CSRS + 0x000000000110)
 #define DC_LCB_ERR_CLR (DC_LCB_CSRS + 0x000000000308)
 #define DC_LCB_ERR_EN (DC_LCB_CSRS + 0x000000000310)
 #define DC_LCB_ERR_FLG (DC_LCB_CSRS + 0x000000000300)
@@ -379,7 +382,6 @@
 #define DC_LCB_STS_ROUND_TRIP_LTP_CNT (DC_LCB_CSRS + 0x0000000004B0)
 #define RCV_BUF_OVFL_CNT 10
 #define RCV_CONTEXT_EGR_STALL 22
-#define RCV_CONTEXT_RHQ_STALL 21
 #define RCV_DATA_PKT_CNT 0
 #define RCV_DWORD_CNT 1
 #define RCV_TID_FLOW_GEN_MISMATCH_CNT 20
diff --git a/drivers/staging/rdma/hfi1/common.h b/drivers/staging/rdma/hfi1/common.h
index 5e203239c5b0..5dd92720faae 100644
--- a/drivers/staging/rdma/hfi1/common.h
+++ b/drivers/staging/rdma/hfi1/common.h
@@ -132,13 +132,14 @@
  * HFI1_CAP_RESERVED_MASK bits.
  */
 #define HFI1_CAP_WRITABLE_MASK   (HFI1_CAP_SDMA_AHG |			\
-				 HFI1_CAP_HDRSUPP |			\
-				 HFI1_CAP_MULTI_PKT_EGR |		\
-				 HFI1_CAP_NODROP_RHQ_FULL |		\
-				 HFI1_CAP_NODROP_EGR_FULL |		\
-				 HFI1_CAP_ALLOW_PERM_JKEY |		\
-				 HFI1_CAP_STATIC_RATE_CTRL |		\
-				 HFI1_CAP_PRINT_UNIMPL)
+				  HFI1_CAP_HDRSUPP |			\
+				  HFI1_CAP_MULTI_PKT_EGR |		\
+				  HFI1_CAP_NODROP_RHQ_FULL |		\
+				  HFI1_CAP_NODROP_EGR_FULL |		\
+				  HFI1_CAP_ALLOW_PERM_JKEY |		\
+				  HFI1_CAP_STATIC_RATE_CTRL |		\
+				  HFI1_CAP_PRINT_UNIMPL |		\
+				  HFI1_CAP_TID_UNMAP)
 /*
  * A set of capability bits that are "global" and are not allowed to be
  * set in the user bitmask.
diff --git a/drivers/staging/rdma/hfi1/diag.c b/drivers/staging/rdma/hfi1/diag.c
index 88414d720469..0c8831705664 100644
--- a/drivers/staging/rdma/hfi1/diag.c
+++ b/drivers/staging/rdma/hfi1/diag.c
@@ -78,8 +78,8 @@
 	hfi1_cdbg(SNOOP, fmt, ##__VA_ARGS__)
 
 /* Snoop option mask */
-#define SNOOP_DROP_SEND	(1 << 0)
-#define SNOOP_USE_METADATA	(1 << 1)
+#define SNOOP_DROP_SEND		BIT(0)
+#define SNOOP_USE_METADATA	BIT(1)
 
 static u8 snoop_flags;
 
@@ -135,7 +135,7 @@ static struct cdev diagpkt_cdev;
 static struct device *diagpkt_device;
 
 static ssize_t diagpkt_write(struct file *fp, const char __user *data,
-				 size_t count, loff_t *off);
+			     size_t count, loff_t *off);
 
 static const struct file_operations diagpkt_file_ops = {
 	.owner = THIS_MODULE,
@@ -177,37 +177,37 @@ struct hfi1_link_info {
 #define HFI1_SNOOP_IOCGETLINKSTATE \
 	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ)
 #define HFI1_SNOOP_IOCSETLINKSTATE \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+1)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 1)
 #define HFI1_SNOOP_IOCCLEARQUEUE \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+2)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 2)
 #define HFI1_SNOOP_IOCCLEARFILTER \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+3)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 3)
 #define HFI1_SNOOP_IOCSETFILTER \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+4)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 4)
 #define HFI1_SNOOP_IOCGETVERSION \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+5)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 5)
 #define HFI1_SNOOP_IOCSET_OPTS \
-	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+6)
+	_IO(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 6)
 
 /*
  * These offsets +6/+7 could change, but these are already known and used
  * IOCTL numbers so don't change them without a good reason.
  */
 #define HFI1_SNOOP_IOCGETLINKSTATE_EXTRA \
-	_IOWR(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+6, \
+	_IOWR(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 6, \
 		struct hfi1_link_info)
 #define HFI1_SNOOP_IOCSETLINKSTATE_EXTRA \
-	_IOWR(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ+7, \
+	_IOWR(HFI1_SNOOP_IOC_MAGIC, HFI1_SNOOP_IOC_BASE_SEQ + 7, \
 		struct hfi1_link_info)
 
 static int hfi1_snoop_open(struct inode *in, struct file *fp);
 static ssize_t hfi1_snoop_read(struct file *fp, char __user *data,
-				size_t pkt_len, loff_t *off);
+			       size_t pkt_len, loff_t *off);
 static ssize_t hfi1_snoop_write(struct file *fp, const char __user *data,
-				 size_t count, loff_t *off);
+				size_t count, loff_t *off);
 static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
 static unsigned int hfi1_snoop_poll(struct file *fp,
-					struct poll_table_struct *wait);
+				    struct poll_table_struct *wait);
 static int hfi1_snoop_release(struct inode *in, struct file *fp);
 
 struct hfi1_packet_filter_command {
@@ -323,14 +323,12 @@ static void hfi1_snoop_remove(struct hfi1_devdata *dd)
 
 void hfi1_diag_remove(struct hfi1_devdata *dd)
 {
-
 	hfi1_snoop_remove(dd);
 	if (atomic_dec_and_test(&diagpkt_count))
 		hfi1_cdev_cleanup(&diagpkt_cdev, &diagpkt_device);
 	hfi1_cdev_cleanup(&dd->diag_cdev, &dd->diag_device);
 }
 
-
 /*
  * Allocated structure shared between the credit return mechanism and
  * diagpkt_send().
@@ -379,6 +377,7 @@ static ssize_t diagpkt_send(struct diag_pkt *dp)
 	pio_release_cb credit_cb = NULL;
 	void *credit_arg = NULL;
 	struct diagpkt_wait *wait = NULL;
+	int trycount = 0;
 
 	dd = hfi1_lookup(dp->unit);
 	if (!dd || !(dd->flags & HFI1_PRESENT) || !dd->kregbase) {
@@ -393,7 +392,7 @@ static ssize_t diagpkt_send(struct diag_pkt *dp)
 
 	if (dp->version != _DIAG_PKT_VERS) {
 		dd_dev_err(dd, "Invalid version %u for diagpkt_write\n",
-			    dp->version);
+			   dp->version);
 		ret = -EINVAL;
 		goto bail;
 	}
@@ -440,7 +439,7 @@ static ssize_t diagpkt_send(struct diag_pkt *dp)
 	}
 
 	if (copy_from_user(tmpbuf,
-			   (const void __user *) (unsigned long) dp->data,
+			   (const void __user *)(unsigned long)dp->data,
 			   dp->len)) {
 		ret = -EFAULT;
 		goto bail;
@@ -493,8 +492,15 @@ static ssize_t diagpkt_send(struct diag_pkt *dp)
 		credit_arg = wait;
 	}
 
+retry:
 	pbuf = sc_buffer_alloc(sc, total_len, credit_cb, credit_arg);
 	if (!pbuf) {
+		if (trycount == 0) {
+			/* force a credit return and try again */
+			sc_return_credits(sc);
+			trycount = 1;
+			goto retry;
+		}
 		/*
 		 * No send buffer means no credit callback.  Undo
 		 * the wait set-up that was done above.  We free wait
@@ -530,9 +536,9 @@ static ssize_t diagpkt_send(struct diag_pkt *dp)
 		 * NOTE: PRC_FILL_ERR is at best informational and cannot
 		 * be depended on.
 		 */
-		if (!ret && (((wait->code & PRC_STATUS_ERR)
-				|| (wait->code & PRC_FILL_ERR)
-				|| (wait->code & PRC_SC_DISABLE))))
+		if (!ret && (((wait->code & PRC_STATUS_ERR) ||
+			      (wait->code & PRC_FILL_ERR) ||
+			      (wait->code & PRC_SC_DISABLE))))
 			ret = -EIO;
 
 		put_diagpkt_wait(wait);	/* finished with the structure */
@@ -545,7 +551,7 @@ bail:
 }
 
 static ssize_t diagpkt_write(struct file *fp, const char __user *data,
-				 size_t count, loff_t *off)
+			     size_t count, loff_t *off)
 {
 	struct hfi1_devdata *dd;
 	struct send_context *sc;
@@ -565,7 +571,7 @@ static ssize_t diagpkt_write(struct file *fp, const char __user *data,
 	*/
 	if (dp.pbc) {
 		dd = hfi1_lookup(dp.unit);
-		if (dd == NULL)
+		if (!dd)
 			return -ENODEV;
 		vl = (dp.pbc >> PBC_VL_SHIFT) & PBC_VL_MASK;
 		sc = dd->vld[vl].sc;
@@ -598,7 +604,7 @@ static int hfi1_snoop_add(struct hfi1_devdata *dd, const char *name)
 	if (ret) {
 		dd_dev_err(dd, "Couldn't create %s device: %d", name, ret);
 		hfi1_cdev_cleanup(&dd->hfi1_snoop.cdev,
-				 &dd->hfi1_snoop.class_dev);
+				  &dd->hfi1_snoop.class_dev);
 	}
 
 	return ret;
@@ -611,7 +617,6 @@ static struct hfi1_devdata *hfi1_dd_from_sc_inode(struct inode *in)
 
 	dd = hfi1_lookup(unit);
 	return dd;
-
 }
 
 /* clear or restore send context integrity checks */
@@ -652,7 +657,7 @@ static int hfi1_snoop_open(struct inode *in, struct file *fp)
 	mutex_lock(&hfi1_mutex);
 
 	dd = hfi1_dd_from_sc_inode(in);
-	if (dd == NULL) {
+	if (!dd) {
 		ret = -ENODEV;
 		goto bail;
 	}
@@ -739,7 +744,7 @@ static int hfi1_snoop_release(struct inode *in, struct file *fp)
 	int mode_flag;
 
 	dd = hfi1_dd_from_sc_inode(in);
-	if (dd == NULL)
+	if (!dd)
 		return -ENODEV;
 
 	spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
@@ -794,7 +799,7 @@ static unsigned int hfi1_snoop_poll(struct file *fp,
 	struct hfi1_devdata *dd;
 
 	dd = hfi1_dd_from_sc_inode(fp->f_inode);
-	if (dd == NULL)
+	if (!dd)
 		return -ENODEV;
 
 	spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
@@ -805,7 +810,6 @@ static unsigned int hfi1_snoop_poll(struct file *fp,
 
 	spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
 	return ret;
-
 }
 
 static ssize_t hfi1_snoop_write(struct file *fp, const char __user *data,
@@ -822,7 +826,7 @@ static ssize_t hfi1_snoop_write(struct file *fp, const char __user *data,
 	struct hfi1_pportdata *ppd;
 
 	dd = hfi1_dd_from_sc_inode(fp->f_inode);
-	if (dd == NULL)
+	if (!dd)
 		return -ENODEV;
 
 	ppd = dd->pport;
@@ -847,7 +851,7 @@ static ssize_t hfi1_snoop_write(struct file *fp, const char __user *data,
 		if (copy_from_user(&byte_one, data, 1))
 			return -EINVAL;
 
-		if (copy_from_user(&byte_two, data+1, 1))
+		if (copy_from_user(&byte_two, data + 1, 1))
 			return -EINVAL;
 
 		sc4 = (byte_one >> 4) & 0xf;
@@ -920,7 +924,7 @@ static ssize_t hfi1_snoop_read(struct file *fp, char __user *data,
 	struct hfi1_devdata *dd;
 
 	dd = hfi1_dd_from_sc_inode(fp->f_inode);
-	if (dd == NULL)
+	if (!dd)
 		return -ENODEV;
 
 	spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
@@ -946,16 +950,18 @@ static ssize_t hfi1_snoop_read(struct file *fp, char __user *data,
 		spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
 		if (pkt_len >= packet->total_len) {
 			if (copy_to_user(data, packet->data,
-				packet->total_len))
+					 packet->total_len))
 				ret = -EFAULT;
 			else
 				ret = packet->total_len;
-		} else
+		} else {
 			ret = -EINVAL;
+		}
 
 		kfree(packet);
-	} else
+	} else {
 		spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
+	}
 
 	return ret;
 }
@@ -966,9 +972,9 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
 	void *filter_value = NULL;
 	long ret = 0;
 	int value = 0;
-	u8 physState = 0;
-	u8 linkState = 0;
-	u16 devState = 0;
+	u8 phys_state = 0;
+	u8 link_state = 0;
+	u16 dev_state = 0;
 	unsigned long flags = 0;
 	unsigned long *argp = NULL;
 	struct hfi1_packet_filter_command filter_cmd = {0};
@@ -976,237 +982,221 @@ static long hfi1_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
 	struct hfi1_pportdata *ppd = NULL;
 	unsigned int index;
 	struct hfi1_link_info link_info;
+	int read_cmd, write_cmd, read_ok, write_ok;
 
 	dd = hfi1_dd_from_sc_inode(fp->f_inode);
-	if (dd == NULL)
+	if (!dd)
 		return -ENODEV;
 
-	spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
-
 	mode_flag = dd->hfi1_snoop.mode_flag;
+	read_cmd = _IOC_DIR(cmd) & _IOC_READ;
+	write_cmd = _IOC_DIR(cmd) & _IOC_WRITE;
+	write_ok = access_ok(VERIFY_WRITE, (void __user *)arg, _IOC_SIZE(cmd));
+	read_ok = access_ok(VERIFY_READ, (void __user *)arg, _IOC_SIZE(cmd));
 
-	if (((_IOC_DIR(cmd) & _IOC_READ)
-	    && !access_ok(VERIFY_WRITE, (void __user *)arg, _IOC_SIZE(cmd)))
-	    || ((_IOC_DIR(cmd) & _IOC_WRITE)
-	    && !access_ok(VERIFY_READ, (void __user *)arg, _IOC_SIZE(cmd)))) {
-		ret = -EFAULT;
-	} else if (!capable(CAP_SYS_ADMIN)) {
-		ret = -EPERM;
-	} else if ((mode_flag & HFI1_PORT_CAPTURE_MODE) &&
-		   (cmd != HFI1_SNOOP_IOCCLEARQUEUE) &&
-		   (cmd != HFI1_SNOOP_IOCCLEARFILTER) &&
-		   (cmd != HFI1_SNOOP_IOCSETFILTER)) {
+	if ((read_cmd && !write_ok) || (write_cmd && !read_ok))
+		return -EFAULT;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if ((mode_flag & HFI1_PORT_CAPTURE_MODE) &&
+	    (cmd != HFI1_SNOOP_IOCCLEARQUEUE) &&
+	    (cmd != HFI1_SNOOP_IOCCLEARFILTER) &&
+	    (cmd != HFI1_SNOOP_IOCSETFILTER))
 		/* Capture devices are allowed only 3 operations
 		 * 1.Clear capture queue
 		 * 2.Clear capture filter
 		 * 3.Set capture filter
 		 * Other are invalid.
 		 */
-		ret = -EINVAL;
-	} else {
-		switch (cmd) {
-		case HFI1_SNOOP_IOCSETLINKSTATE:
-			snoop_dbg("HFI1_SNOOP_IOCSETLINKSTATE is not valid");
-			ret = -EINVAL;
-			break;
+		return -EINVAL;
 
-		case HFI1_SNOOP_IOCSETLINKSTATE_EXTRA:
-			memset(&link_info, 0, sizeof(link_info));
+	switch (cmd) {
+	case HFI1_SNOOP_IOCSETLINKSTATE_EXTRA:
+		memset(&link_info, 0, sizeof(link_info));
 
-			if (copy_from_user(&link_info,
-				(struct hfi1_link_info __user *)arg,
-				sizeof(link_info)))
-				ret = -EFAULT;
+		if (copy_from_user(&link_info,
+				   (struct hfi1_link_info __user *)arg,
+				   sizeof(link_info)))
+			return -EFAULT;
 
-			value = link_info.port_state;
-			index = link_info.port_number;
-			if (index > dd->num_pports - 1) {
-				ret = -EINVAL;
-				break;
-			}
+		value = link_info.port_state;
+		index = link_info.port_number;
+		if (index > dd->num_pports - 1)
+			return -EINVAL;
 
-			ppd = &dd->pport[index];
-			if (!ppd) {
-				ret = -EINVAL;
-				break;
-			}
+		ppd = &dd->pport[index];
+		if (!ppd)
+			return -EINVAL;
 
-			/* What we want to transition to */
-			physState = (value >> 4) & 0xF;
-			linkState = value & 0xF;
-			snoop_dbg("Setting link state 0x%x", value);
-
-			switch (linkState) {
-			case IB_PORT_NOP:
-				if (physState == 0)
-					break;
-					/* fall through */
-			case IB_PORT_DOWN:
-				switch (physState) {
-				case 0:
-					devState = HLS_DN_DOWNDEF;
-					break;
-				case 2:
-					devState = HLS_DN_POLL;
-					break;
-				case 3:
-					devState = HLS_DN_DISABLE;
-					break;
-				default:
-					ret = -EINVAL;
-					goto done;
-				}
-				ret = set_link_state(ppd, devState);
-				break;
-			case IB_PORT_ARMED:
-				ret = set_link_state(ppd, HLS_UP_ARMED);
-				if (!ret)
-					send_idle_sma(dd, SMA_IDLE_ARM);
-				break;
-			case IB_PORT_ACTIVE:
-				ret = set_link_state(ppd, HLS_UP_ACTIVE);
-				if (!ret)
-					send_idle_sma(dd, SMA_IDLE_ACTIVE);
-				break;
-			default:
-				ret = -EINVAL;
-				break;
-			}
+		/* What we want to transition to */
+		phys_state = (value >> 4) & 0xF;
+		link_state = value & 0xF;
+		snoop_dbg("Setting link state 0x%x", value);
 
-			if (ret)
+		switch (link_state) {
+		case IB_PORT_NOP:
+			if (phys_state == 0)
 				break;
-			/* fall through */
-		case HFI1_SNOOP_IOCGETLINKSTATE:
-		case HFI1_SNOOP_IOCGETLINKSTATE_EXTRA:
-			if (cmd == HFI1_SNOOP_IOCGETLINKSTATE_EXTRA) {
-				memset(&link_info, 0, sizeof(link_info));
-				if (copy_from_user(&link_info,
-					(struct hfi1_link_info __user *)arg,
-					sizeof(link_info)))
-					ret = -EFAULT;
-				index = link_info.port_number;
-			} else {
-				ret = __get_user(index, (int __user *) arg);
-				if (ret !=  0)
-					break;
-			}
-
-			if (index > dd->num_pports - 1) {
-				ret = -EINVAL;
+				/* fall through */
+		case IB_PORT_DOWN:
+			switch (phys_state) {
+			case 0:
+				dev_state = HLS_DN_DOWNDEF;
 				break;
-			}
-
-			ppd = &dd->pport[index];
-			if (!ppd) {
-				ret = -EINVAL;
+			case 2:
+				dev_state = HLS_DN_POLL;
 				break;
+			case 3:
+				dev_state = HLS_DN_DISABLE;
+				break;
+			default:
+				return -EINVAL;
 			}
-			value = hfi1_ibphys_portstate(ppd);
-			value <<= 4;
-			value |= driver_lstate(ppd);
-
-			snoop_dbg("Link port | Link State: %d", value);
-
-			if ((cmd == HFI1_SNOOP_IOCGETLINKSTATE_EXTRA) ||
-			    (cmd == HFI1_SNOOP_IOCSETLINKSTATE_EXTRA)) {
-				link_info.port_state = value;
-				link_info.node_guid = cpu_to_be64(ppd->guid);
-				link_info.link_speed_active =
-							ppd->link_speed_active;
-				link_info.link_width_active =
-							ppd->link_width_active;
-				if (copy_to_user(
-					(struct hfi1_link_info __user *)arg,
-					&link_info, sizeof(link_info)))
-					ret = -EFAULT;
-			} else {
-				ret = __put_user(value, (int __user *)arg);
-			}
+			ret = set_link_state(ppd, dev_state);
 			break;
-
-		case HFI1_SNOOP_IOCCLEARQUEUE:
-			snoop_dbg("Clearing snoop queue");
-			drain_snoop_list(&dd->hfi1_snoop.queue);
+		case IB_PORT_ARMED:
+			ret = set_link_state(ppd, HLS_UP_ARMED);
+			if (!ret)
+				send_idle_sma(dd, SMA_IDLE_ARM);
 			break;
-
-		case HFI1_SNOOP_IOCCLEARFILTER:
-			snoop_dbg("Clearing filter");
-			if (dd->hfi1_snoop.filter_callback) {
-				/* Drain packets first */
-				drain_snoop_list(&dd->hfi1_snoop.queue);
-				dd->hfi1_snoop.filter_callback = NULL;
-			}
-			kfree(dd->hfi1_snoop.filter_value);
-			dd->hfi1_snoop.filter_value = NULL;
+		case IB_PORT_ACTIVE:
+			ret = set_link_state(ppd, HLS_UP_ACTIVE);
+			if (!ret)
+				send_idle_sma(dd, SMA_IDLE_ACTIVE);
 			break;
+		default:
+			return -EINVAL;
+		}
 
-		case HFI1_SNOOP_IOCSETFILTER:
-			snoop_dbg("Setting filter");
-			/* just copy command structure */
-			argp = (unsigned long *)arg;
-			if (copy_from_user(&filter_cmd, (void __user *)argp,
-					     sizeof(filter_cmd))) {
-				ret = -EFAULT;
-				break;
-			}
-			if (filter_cmd.opcode >= HFI1_MAX_FILTERS) {
-				pr_alert("Invalid opcode in request\n");
-				ret = -EINVAL;
+		if (ret)
+			break;
+		/* fall through */
+	case HFI1_SNOOP_IOCGETLINKSTATE:
+	case HFI1_SNOOP_IOCGETLINKSTATE_EXTRA:
+		if (cmd == HFI1_SNOOP_IOCGETLINKSTATE_EXTRA) {
+			memset(&link_info, 0, sizeof(link_info));
+			if (copy_from_user(&link_info,
+					   (struct hfi1_link_info __user *)arg,
+					   sizeof(link_info)))
+				return -EFAULT;
+			index = link_info.port_number;
+		} else {
+			ret = __get_user(index, (int __user *)arg);
+			if (ret !=  0)
 				break;
-			}
+		}
 
-			snoop_dbg("Opcode %d Len %d Ptr %p",
-				   filter_cmd.opcode, filter_cmd.length,
-				   filter_cmd.value_ptr);
+		if (index > dd->num_pports - 1)
+			return -EINVAL;
 
-			filter_value = kcalloc(filter_cmd.length, sizeof(u8),
-					       GFP_KERNEL);
-			if (!filter_value) {
-				pr_alert("Not enough memory\n");
-				ret = -ENOMEM;
-				break;
-			}
-			/* copy remaining data from userspace */
-			if (copy_from_user((u8 *)filter_value,
-					(void __user *)filter_cmd.value_ptr,
-					filter_cmd.length)) {
-				kfree(filter_value);
-				ret = -EFAULT;
-				break;
-			}
+		ppd = &dd->pport[index];
+		if (!ppd)
+			return -EINVAL;
+
+		value = hfi1_ibphys_portstate(ppd);
+		value <<= 4;
+		value |= driver_lstate(ppd);
+
+		snoop_dbg("Link port | Link State: %d", value);
+
+		if ((cmd == HFI1_SNOOP_IOCGETLINKSTATE_EXTRA) ||
+		    (cmd == HFI1_SNOOP_IOCSETLINKSTATE_EXTRA)) {
+			link_info.port_state = value;
+			link_info.node_guid = cpu_to_be64(ppd->guid);
+			link_info.link_speed_active =
+						ppd->link_speed_active;
+			link_info.link_width_active =
+						ppd->link_width_active;
+			if (copy_to_user((struct hfi1_link_info __user *)arg,
+					 &link_info, sizeof(link_info)))
+				return -EFAULT;
+		} else {
+			ret = __put_user(value, (int __user *)arg);
+		}
+		break;
+
+	case HFI1_SNOOP_IOCCLEARQUEUE:
+		snoop_dbg("Clearing snoop queue");
+		spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
+		drain_snoop_list(&dd->hfi1_snoop.queue);
+		spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
+		break;
+
+	case HFI1_SNOOP_IOCCLEARFILTER:
+		snoop_dbg("Clearing filter");
+		spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
+		if (dd->hfi1_snoop.filter_callback) {
 			/* Drain packets first */
 			drain_snoop_list(&dd->hfi1_snoop.queue);
-			dd->hfi1_snoop.filter_callback =
-				hfi1_filters[filter_cmd.opcode].filter;
-			/* just in case we see back to back sets */
-			kfree(dd->hfi1_snoop.filter_value);
-			dd->hfi1_snoop.filter_value = filter_value;
+			dd->hfi1_snoop.filter_callback = NULL;
+		}
+		kfree(dd->hfi1_snoop.filter_value);
+		dd->hfi1_snoop.filter_value = NULL;
+		spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
+		break;
 
-			break;
-		case HFI1_SNOOP_IOCGETVERSION:
-			value = SNOOP_CAPTURE_VERSION;
-			snoop_dbg("Getting version: %d", value);
-			ret = __put_user(value, (int __user *)arg);
-			break;
-		case HFI1_SNOOP_IOCSET_OPTS:
-			snoop_flags = 0;
-			ret = __get_user(value, (int __user *) arg);
-			if (ret != 0)
-				break;
+	case HFI1_SNOOP_IOCSETFILTER:
+		snoop_dbg("Setting filter");
+		/* just copy command structure */
+		argp = (unsigned long *)arg;
+		if (copy_from_user(&filter_cmd, (void __user *)argp,
+				   sizeof(filter_cmd)))
+			return -EFAULT;
 
-			snoop_dbg("Setting snoop option %d", value);
-			if (value & SNOOP_DROP_SEND)
-				snoop_flags |= SNOOP_DROP_SEND;
-			if (value & SNOOP_USE_METADATA)
-				snoop_flags |= SNOOP_USE_METADATA;
-			break;
-		default:
-			ret = -ENOTTY;
-			break;
+		if (filter_cmd.opcode >= HFI1_MAX_FILTERS) {
+			pr_alert("Invalid opcode in request\n");
+			return -EINVAL;
+		}
+
+		snoop_dbg("Opcode %d Len %d Ptr %p",
+			  filter_cmd.opcode, filter_cmd.length,
+			  filter_cmd.value_ptr);
+
+		filter_value = kcalloc(filter_cmd.length, sizeof(u8),
+				       GFP_KERNEL);
+		if (!filter_value)
+			return -ENOMEM;
+
+		/* copy remaining data from userspace */
+		if (copy_from_user((u8 *)filter_value,
+				   (void __user *)filter_cmd.value_ptr,
+				   filter_cmd.length)) {
+			kfree(filter_value);
+			return -EFAULT;
 		}
+		/* Drain packets first */
+		spin_lock_irqsave(&dd->hfi1_snoop.snoop_lock, flags);
+		drain_snoop_list(&dd->hfi1_snoop.queue);
+		dd->hfi1_snoop.filter_callback =
+			hfi1_filters[filter_cmd.opcode].filter;
+		/* just in case we see back to back sets */
+		kfree(dd->hfi1_snoop.filter_value);
+		dd->hfi1_snoop.filter_value = filter_value;
+		spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
+		break;
+	case HFI1_SNOOP_IOCGETVERSION:
+		value = SNOOP_CAPTURE_VERSION;
+		snoop_dbg("Getting version: %d", value);
+		ret = __put_user(value, (int __user *)arg);
+		break;
+	case HFI1_SNOOP_IOCSET_OPTS:
+		snoop_flags = 0;
+		ret = __get_user(value, (int __user *)arg);
+		if (ret != 0)
+			break;
+
+		snoop_dbg("Setting snoop option %d", value);
+		if (value & SNOOP_DROP_SEND)
+			snoop_flags |= SNOOP_DROP_SEND;
+		if (value & SNOOP_USE_METADATA)
+			snoop_flags |= SNOOP_USE_METADATA;
+		break;
+	default:
+		return -ENOTTY;
 	}
-done:
-	spin_unlock_irqrestore(&dd->hfi1_snoop.snoop_lock, flags);
+
 	return ret;
 }
 
@@ -1321,7 +1311,6 @@ static int hfi1_filter_mad_mgmt_class(void *ibhdr, void *packet_data,
 
 static int hfi1_filter_qp_number(void *ibhdr, void *packet_data, void *value)
 {
-
 	struct hfi1_ib_header *hdr;
 	struct hfi1_other_headers *ohdr = NULL;
 	int ret;
@@ -1404,7 +1393,6 @@ static int hfi1_filter_ib_service_level(void *ibhdr, void *packet_data,
 
 static int hfi1_filter_ib_pkey(void *ibhdr, void *packet_data, void *value)
 {
-
 	u32 lnh = 0;
 	struct hfi1_ib_header *hdr;
 	struct hfi1_other_headers *ohdr = NULL;
@@ -1476,16 +1464,14 @@ static struct snoop_packet *allocate_snoop_packet(u32 hdr_len,
 						  u32 data_len,
 						  u32 md_len)
 {
-
 	struct snoop_packet *packet;
 
-	packet = kzalloc(sizeof(struct snoop_packet) + hdr_len + data_len
+	packet = kzalloc(sizeof(*packet) + hdr_len + data_len
 			 + md_len,
 			 GFP_ATOMIC | __GFP_NOWARN);
 	if (likely(packet))
 		INIT_LIST_HEAD(&packet->list);
 
-
 	return packet;
 }
 
@@ -1542,12 +1528,11 @@ int snoop_recv_handler(struct hfi1_packet *packet)
 		    unlikely(snoop_flags & SNOOP_USE_METADATA))
 			md_len = sizeof(struct capture_md);
 
-
 		s_packet = allocate_snoop_packet(header_size,
 						 tlen - header_size,
 						 md_len);
 
-		if (unlikely(s_packet == NULL)) {
+		if (unlikely(!s_packet)) {
 			dd_dev_warn_ratelimited(ppd->dd, "Unable to allocate snoop/capture packet\n");
 			break;
 		}
@@ -1618,14 +1603,12 @@ int snoop_recv_handler(struct hfi1_packet *packet)
 /*
  * Handle snooping and capturing packets when sdma is being used.
  */
-int snoop_send_dma_handler(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
-			   u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			   u32 plen, u32 dwords, u64 pbc)
+int snoop_send_dma_handler(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			   u64 pbc)
 {
-	pr_alert("Snooping/Capture of  Send DMA Packets Is Not Supported!\n");
+	pr_alert("Snooping/Capture of Send DMA Packets Is Not Supported!\n");
 	snoop_dbg("Unsupported Operation");
-	return hfi1_verbs_send_dma(qp, ibhdr, hdrwords, ss, len, plen, dwords,
-				  0);
+	return hfi1_verbs_send_dma(qp, ps, 0);
 }
 
 /*
@@ -1633,12 +1616,16 @@ int snoop_send_dma_handler(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
  * bypass packets. The only way to send a bypass packet currently is to use the
  * diagpkt interface. When that interface is enable snoop/capture is not.
  */
-int snoop_send_pio_handler(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
-			   u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			   u32 plen, u32 dwords, u64 pbc)
+int snoop_send_pio_handler(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			   u64 pbc)
 {
-	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
-	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct ahg_ib_header *ahdr = qp->s_hdr;
+	u32 hdrwords = qp->s_hdrwords;
+	struct hfi1_sge_state *ss = qp->s_cur_sge;
+	u32 len = qp->s_cur_size;
+	u32 dwords = (len + 3) >> 2;
+	u32 plen = hdrwords + dwords + 2; /* includes pbc */
+	struct hfi1_pportdata *ppd = ps->ppd;
 	struct snoop_packet *s_packet = NULL;
 	u32 *hdr = (u32 *)&ahdr->ibh;
 	u32 length = 0;
@@ -1666,7 +1653,7 @@ int snoop_send_pio_handler(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
 	/* not using ss->total_len as arg 2 b/c that does not count CRC */
 	s_packet = allocate_snoop_packet(hdr_len, tlen - hdr_len, md_len);
 
-	if (unlikely(s_packet == NULL)) {
+	if (unlikely(!s_packet)) {
 		dd_dev_warn_ratelimited(ppd->dd, "Unable to allocate snoop/capture packet\n");
 		goto out;
 	}
@@ -1783,8 +1770,7 @@ int snoop_send_pio_handler(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
 		break;
 	}
 out:
-	return hfi1_verbs_send_pio(qp, ahdr, hdrwords, ss, len, plen, dwords,
-				  md.u.pbc);
+	return hfi1_verbs_send_pio(qp, ps, md.u.pbc);
 }
 
 /*
@@ -1836,7 +1822,7 @@ void snoop_inline_pio_send(struct hfi1_devdata *dd, struct pio_buf *pbuf,
 
 		s_packet = allocate_snoop_packet(packet_len, 0, md_len);
 
-		if (unlikely(s_packet == NULL)) {
+		if (unlikely(!s_packet)) {
 			dd_dev_warn_ratelimited(dd, "Unable to allocate snoop/capture packet\n");
 			goto inline_pio_out;
 		}
@@ -1868,5 +1854,4 @@ void snoop_inline_pio_send(struct hfi1_devdata *dd, struct pio_buf *pbuf,
 
 inline_pio_out:
 	pio_copy(dd, pbuf, pbc, from, count);
-
 }
diff --git a/drivers/staging/rdma/hfi1/driver.c b/drivers/staging/rdma/hfi1/driver.c
index ce69141b56cb..8485de1fce08 100644
--- a/drivers/staging/rdma/hfi1/driver.c
+++ b/drivers/staging/rdma/hfi1/driver.c
@@ -158,7 +158,7 @@ const char *get_unit_name(int unit)
 {
 	static char iname[16];
 
-	snprintf(iname, sizeof(iname), DRIVER_NAME"_%u", unit);
+	snprintf(iname, sizeof(iname), DRIVER_NAME "_%u", unit);
 	return iname;
 }
 
@@ -436,59 +436,58 @@ static inline void init_packet(struct hfi1_ctxtdata *rcd,
 
 #ifndef CONFIG_PRESCAN_RXQ
 static void prescan_rxq(struct hfi1_packet *packet) {}
-#else /* CONFIG_PRESCAN_RXQ */
+#else /* !CONFIG_PRESCAN_RXQ */
 static int prescan_receive_queue;
 
 static void process_ecn(struct hfi1_qp *qp, struct hfi1_ib_header *hdr,
 			struct hfi1_other_headers *ohdr,
-			u64 rhf, struct ib_grh *grh)
+			u64 rhf, u32 bth1, struct ib_grh *grh)
 {
 	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
-	u32 bth1;
+	u32 rqpn = 0;
+	u16 rlid;
 	u8 sc5, svc_type;
-	int is_fecn, is_becn;
 
 	switch (qp->ibqp.qp_type) {
+	case IB_QPT_SMI:
+	case IB_QPT_GSI:
 	case IB_QPT_UD:
+		rlid = be16_to_cpu(hdr->lrh[3]);
+		rqpn = be32_to_cpu(ohdr->u.ud.deth[1]) & HFI1_QPN_MASK;
 		svc_type = IB_CC_SVCTYPE_UD;
 		break;
-	case IB_QPT_UC:	/* LATER */
-	case IB_QPT_RC:	/* LATER */
+	case IB_QPT_UC:
+		rlid = qp->remote_ah_attr.dlid;
+		rqpn = qp->remote_qpn;
+		svc_type = IB_CC_SVCTYPE_UC;
+		break;
+	case IB_QPT_RC:
+		rlid = qp->remote_ah_attr.dlid;
+		rqpn = qp->remote_qpn;
+		svc_type = IB_CC_SVCTYPE_RC;
+		break;
 	default:
 		return;
 	}
 
-	is_fecn = (be32_to_cpu(ohdr->bth[1]) >> HFI1_FECN_SHIFT) &
-			HFI1_FECN_MASK;
-	is_becn = (be32_to_cpu(ohdr->bth[1]) >> HFI1_BECN_SHIFT) &
-			HFI1_BECN_MASK;
-
 	sc5 = (be16_to_cpu(hdr->lrh[0]) >> 12) & 0xf;
 	if (rhf_dc_info(rhf))
 		sc5 |= 0x10;
 
-	if (is_fecn) {
-		u32 src_qpn = be32_to_cpu(ohdr->u.ud.deth[1]) & HFI1_QPN_MASK;
+	if (bth1 & HFI1_FECN_SMASK) {
 		u16 pkey = (u16)be32_to_cpu(ohdr->bth[0]);
 		u16 dlid = be16_to_cpu(hdr->lrh[1]);
-		u16 slid = be16_to_cpu(hdr->lrh[3]);
 
-		return_cnp(ibp, qp, src_qpn, pkey, dlid, slid, sc5, grh);
+		return_cnp(ibp, qp, rqpn, pkey, dlid, rlid, sc5, grh);
 	}
 
-	if (is_becn) {
+	if (bth1 & HFI1_BECN_SMASK) {
 		struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
-		u32 lqpn =  be32_to_cpu(ohdr->bth[1]) & HFI1_QPN_MASK;
+		u32 lqpn = bth1 & HFI1_QPN_MASK;
 		u8 sl = ibp->sc_to_sl[sc5];
 
-		process_becn(ppd, sl, 0, lqpn, 0, svc_type);
+		process_becn(ppd, sl, rlid, lqpn, rqpn, svc_type);
 	}
-
-	/* turn off BECN, or FECN */
-	bth1 = be32_to_cpu(ohdr->bth[1]);
-	bth1 &= ~(HFI1_FECN_MASK << HFI1_FECN_SHIFT);
-	bth1 &= ~(HFI1_BECN_MASK << HFI1_BECN_SHIFT);
-	ohdr->bth[1] = cpu_to_be32(bth1);
 }
 
 struct ps_mdata {
@@ -508,38 +507,51 @@ static inline void init_ps_mdata(struct ps_mdata *mdata,
 	mdata->rcd = rcd;
 	mdata->rsize = packet->rsize;
 	mdata->maxcnt = packet->maxcnt;
+	mdata->ps_head = packet->rhqoff;
 
-	if (rcd->ps_state.initialized == 0) {
-		mdata->ps_head = packet->rhqoff;
-		rcd->ps_state.initialized++;
-	} else
-		mdata->ps_head = rcd->ps_state.ps_head;
-
-	if (HFI1_CAP_IS_KSET(DMA_RTAIL)) {
-		mdata->ps_tail = packet->hdrqtail;
-		mdata->ps_seq = 0; /* not used with DMA_RTAIL */
+	if (HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL)) {
+		mdata->ps_tail = get_rcvhdrtail(rcd);
+		if (rcd->ctxt == HFI1_CTRL_CTXT)
+			mdata->ps_seq = rcd->seq_cnt;
+		else
+			mdata->ps_seq = 0; /* not used with DMA_RTAIL */
 	} else {
 		mdata->ps_tail = 0; /* used only with DMA_RTAIL*/
 		mdata->ps_seq = rcd->seq_cnt;
 	}
 }
 
-static inline int ps_done(struct ps_mdata *mdata, u64 rhf)
+static inline int ps_done(struct ps_mdata *mdata, u64 rhf,
+			  struct hfi1_ctxtdata *rcd)
 {
-	if (HFI1_CAP_IS_KSET(DMA_RTAIL))
+	if (HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL))
 		return mdata->ps_head == mdata->ps_tail;
 	return mdata->ps_seq != rhf_rcv_seq(rhf);
 }
 
-static inline void update_ps_mdata(struct ps_mdata *mdata)
+static inline int ps_skip(struct ps_mdata *mdata, u64 rhf,
+			  struct hfi1_ctxtdata *rcd)
 {
-	struct hfi1_ctxtdata *rcd = mdata->rcd;
+	/*
+	 * Control context can potentially receive an invalid rhf.
+	 * Drop such packets.
+	 */
+	if ((rcd->ctxt == HFI1_CTRL_CTXT) && (mdata->ps_head != mdata->ps_tail))
+		return mdata->ps_seq != rhf_rcv_seq(rhf);
+
+	return 0;
+}
 
+static inline void update_ps_mdata(struct ps_mdata *mdata,
+				   struct hfi1_ctxtdata *rcd)
+{
 	mdata->ps_head += mdata->rsize;
-	if (mdata->ps_head > mdata->maxcnt)
+	if (mdata->ps_head >= mdata->maxcnt)
 		mdata->ps_head = 0;
-	rcd->ps_state.ps_head = mdata->ps_head;
-	if (!HFI1_CAP_IS_KSET(DMA_RTAIL)) {
+
+	/* Control context must do seq counting */
+	if (!HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL) ||
+	    (rcd->ctxt == HFI1_CTRL_CTXT)) {
 		if (++mdata->ps_seq > 13)
 			mdata->ps_seq = 1;
 	}
@@ -571,13 +583,16 @@ static void prescan_rxq(struct hfi1_packet *packet)
 		struct hfi1_other_headers *ohdr;
 		struct ib_grh *grh = NULL;
 		u64 rhf = rhf_to_cpu(rhf_addr);
-		u32 etype = rhf_rcv_type(rhf), qpn;
+		u32 etype = rhf_rcv_type(rhf), qpn, bth1;
 		int is_ecn = 0;
 		u8 lnh;
 
-		if (ps_done(&mdata, rhf))
+		if (ps_done(&mdata, rhf, rcd))
 			break;
 
+		if (ps_skip(&mdata, rhf, rcd))
+			goto next;
+
 		if (etype != RHF_RCV_TYPE_IB)
 			goto next;
 
@@ -593,15 +608,13 @@ static void prescan_rxq(struct hfi1_packet *packet)
 		} else
 			goto next; /* just in case */
 
-		is_ecn |= be32_to_cpu(ohdr->bth[1]) &
-			(HFI1_FECN_MASK << HFI1_FECN_SHIFT);
-		is_ecn |= be32_to_cpu(ohdr->bth[1]) &
-			(HFI1_BECN_MASK << HFI1_BECN_SHIFT);
+		bth1 = be32_to_cpu(ohdr->bth[1]);
+		is_ecn = !!(bth1 & (HFI1_FECN_SMASK | HFI1_BECN_SMASK));
 
 		if (!is_ecn)
 			goto next;
 
-		qpn = be32_to_cpu(ohdr->bth[1]) & HFI1_QPN_MASK;
+		qpn = bth1 & HFI1_QPN_MASK;
 		rcu_read_lock();
 		qp = hfi1_lookup_qpn(ibp, qpn);
 
@@ -610,14 +623,44 @@ static void prescan_rxq(struct hfi1_packet *packet)
 			goto next;
 		}
 
-		process_ecn(qp, hdr, ohdr, rhf, grh);
+		process_ecn(qp, hdr, ohdr, rhf, bth1, grh);
 		rcu_read_unlock();
+
+		/* turn off BECN, FECN */
+		bth1 &= ~(HFI1_FECN_SMASK | HFI1_BECN_SMASK);
+		ohdr->bth[1] = cpu_to_be32(bth1);
 next:
-		update_ps_mdata(&mdata);
+		update_ps_mdata(&mdata, rcd);
 	}
 }
 #endif /* CONFIG_PRESCAN_RXQ */
 
+static inline int skip_rcv_packet(struct hfi1_packet *packet, int thread)
+{
+	int ret = RCV_PKT_OK;
+
+	/* Set up for the next packet */
+	packet->rhqoff += packet->rsize;
+	if (packet->rhqoff >= packet->maxcnt)
+		packet->rhqoff = 0;
+
+	packet->numpkt++;
+	if (unlikely((packet->numpkt & (MAX_PKT_RECV - 1)) == 0)) {
+		if (thread) {
+			cond_resched();
+		} else {
+			ret = RCV_PKT_LIMIT;
+			this_cpu_inc(*packet->rcd->dd->rcv_limit);
+		}
+	}
+
+	packet->rhf_addr = (__le32 *)packet->rcd->rcvhdrq + packet->rhqoff +
+				     packet->rcd->dd->rhf_offset;
+	packet->rhf = rhf_to_cpu(packet->rhf_addr);
+
+	return ret;
+}
+
 static inline int process_rcv_packet(struct hfi1_packet *packet, int thread)
 {
 	int ret = RCV_PKT_OK;
@@ -721,8 +764,8 @@ static inline void process_rcv_qp_work(struct hfi1_packet *packet)
 	 */
 	list_for_each_entry_safe(qp, nqp, &rcd->qp_wait_list, rspwait) {
 		list_del_init(&qp->rspwait);
-		if (qp->r_flags & HFI1_R_RSP_NAK) {
-			qp->r_flags &= ~HFI1_R_RSP_NAK;
+		if (qp->r_flags & HFI1_R_RSP_DEFERED_ACK) {
+			qp->r_flags &= ~HFI1_R_RSP_DEFERED_ACK;
 			hfi1_send_rc_ack(rcd, qp, 0);
 		}
 		if (qp->r_flags & HFI1_R_RSP_SEND) {
@@ -791,7 +834,6 @@ int handle_receive_interrupt_dma_rtail(struct hfi1_ctxtdata *rcd, int thread)
 
 	while (last == RCV_PKT_OK) {
 		last = process_rcv_packet(&packet, thread);
-		hdrqtail = get_rcvhdrtail(rcd);
 		if (packet.rhqoff == hdrqtail)
 			last = RCV_PKT_DONE;
 		process_rcv_update(last, &packet);
@@ -806,7 +848,7 @@ static inline void set_all_nodma_rtail(struct hfi1_devdata *dd)
 {
 	int i;
 
-	for (i = 0; i < dd->first_user_ctxt; i++)
+	for (i = HFI1_CTRL_CTXT + 1; i < dd->first_user_ctxt; i++)
 		dd->rcd[i]->do_interrupt =
 			&handle_receive_interrupt_nodma_rtail;
 }
@@ -815,7 +857,7 @@ static inline void set_all_dma_rtail(struct hfi1_devdata *dd)
 {
 	int i;
 
-	for (i = 0; i < dd->first_user_ctxt; i++)
+	for (i = HFI1_CTRL_CTXT + 1; i < dd->first_user_ctxt; i++)
 		dd->rcd[i]->do_interrupt =
 			&handle_receive_interrupt_dma_rtail;
 }
@@ -831,12 +873,16 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread)
 {
 	struct hfi1_devdata *dd = rcd->dd;
 	u32 hdrqtail;
-	int last = RCV_PKT_OK, needset = 1;
+	int needset, last = RCV_PKT_OK;
 	struct hfi1_packet packet;
+	int skip_pkt = 0;
+
+	/* Control context will always use the slow path interrupt handler */
+	needset = (rcd->ctxt == HFI1_CTRL_CTXT) ? 0 : 1;
 
 	init_packet(rcd, &packet);
 
-	if (!HFI1_CAP_IS_KSET(DMA_RTAIL)) {
+	if (!HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL)) {
 		u32 seq = rhf_rcv_seq(packet.rhf);
 
 		if (seq != rcd->seq_cnt) {
@@ -851,6 +897,17 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread)
 			goto bail;
 		}
 		smp_rmb();  /* prevent speculative reads of dma'ed hdrq */
+
+		/*
+		 * Control context can potentially receive an invalid
+		 * rhf. Drop such packets.
+		 */
+		if (rcd->ctxt == HFI1_CTRL_CTXT) {
+			u32 seq = rhf_rcv_seq(packet.rhf);
+
+			if (seq != rcd->seq_cnt)
+				skip_pkt = 1;
+		}
 	}
 
 	prescan_rxq(&packet);
@@ -868,11 +925,14 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread)
 					  dd->rhf_offset;
 			packet.rhf = rhf_to_cpu(packet.rhf_addr);
 
+		} else if (skip_pkt) {
+			last = skip_rcv_packet(&packet, thread);
+			skip_pkt = 0;
 		} else {
 			last = process_rcv_packet(&packet, thread);
 		}
 
-		if (!HFI1_CAP_IS_KSET(DMA_RTAIL)) {
+		if (!HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL)) {
 			u32 seq = rhf_rcv_seq(packet.rhf);
 
 			if (++rcd->seq_cnt > 13)
@@ -888,6 +948,19 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread)
 		} else {
 			if (packet.rhqoff == hdrqtail)
 				last = RCV_PKT_DONE;
+			/*
+			 * Control context can potentially receive an invalid
+			 * rhf. Drop such packets.
+			 */
+			if (rcd->ctxt == HFI1_CTRL_CTXT) {
+				u32 seq = rhf_rcv_seq(packet.rhf);
+
+				if (++rcd->seq_cnt > 13)
+					rcd->seq_cnt = 1;
+				if (!last && (seq != rcd->seq_cnt))
+					skip_pkt = 1;
+			}
+
 			if (needset) {
 				dd_dev_info(dd,
 					    "Switching to DMA_RTAIL\n");
@@ -1163,20 +1236,20 @@ void handle_eflags(struct hfi1_packet *packet)
 	struct hfi1_ctxtdata *rcd = packet->rcd;
 	u32 rte = rhf_rcv_type_err(packet->rhf);
 
-	dd_dev_err(rcd->dd,
-		"receive context %d: rhf 0x%016llx, errs [ %s%s%s%s%s%s%s%s] rte 0x%x\n",
-		rcd->ctxt, packet->rhf,
-		packet->rhf & RHF_K_HDR_LEN_ERR ? "k_hdr_len " : "",
-		packet->rhf & RHF_DC_UNC_ERR ? "dc_unc " : "",
-		packet->rhf & RHF_DC_ERR ? "dc " : "",
-		packet->rhf & RHF_TID_ERR ? "tid " : "",
-		packet->rhf & RHF_LEN_ERR ? "len " : "",
-		packet->rhf & RHF_ECC_ERR ? "ecc " : "",
-		packet->rhf & RHF_VCRC_ERR ? "vcrc " : "",
-		packet->rhf & RHF_ICRC_ERR ? "icrc " : "",
-		rte);
-
 	rcv_hdrerr(rcd, rcd->ppd, packet);
+	if (rhf_err_flags(packet->rhf))
+		dd_dev_err(rcd->dd,
+			   "receive context %d: rhf 0x%016llx, errs [ %s%s%s%s%s%s%s%s] rte 0x%x\n",
+			   rcd->ctxt, packet->rhf,
+			   packet->rhf & RHF_K_HDR_LEN_ERR ? "k_hdr_len " : "",
+			   packet->rhf & RHF_DC_UNC_ERR ? "dc_unc " : "",
+			   packet->rhf & RHF_DC_ERR ? "dc " : "",
+			   packet->rhf & RHF_TID_ERR ? "tid " : "",
+			   packet->rhf & RHF_LEN_ERR ? "len " : "",
+			   packet->rhf & RHF_ECC_ERR ? "ecc " : "",
+			   packet->rhf & RHF_VCRC_ERR ? "vcrc " : "",
+			   packet->rhf & RHF_ICRC_ERR ? "icrc " : "",
+			   rte);
 }
 
 /*
diff --git a/drivers/staging/rdma/hfi1/efivar.c b/drivers/staging/rdma/hfi1/efivar.c
new file mode 100644
index 000000000000..7dc5bae220e0
--- /dev/null
+++ b/drivers/staging/rdma/hfi1/efivar.c
@@ -0,0 +1,169 @@
+/*
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  - Neither the name of Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "efivar.h"
+
+/* GUID for HFI1 variables in EFI */
+#define HFI1_EFIVAR_GUID EFI_GUID(0xc50a953e, 0xa8b2, 0x42a6, \
+		0xbf, 0x89, 0xd3, 0x33, 0xa6, 0xe9, 0xe6, 0xd4)
+/* largest EFI data size we expect */
+#define EFI_DATA_SIZE 4096
+
+/*
+ * Read the named EFI variable.  Return the size of the actual data in *size
+ * and a kmalloc'ed buffer in *return_data.  The caller must free the
+ * data.  It is guaranteed that *return_data will be NULL and *size = 0
+ * if this routine fails.
+ *
+ * Return 0 on success, -errno on failure.
+ */
+static int read_efi_var(const char *name, unsigned long *size,
+			void **return_data)
+{
+	efi_status_t status;
+	efi_char16_t *uni_name;
+	efi_guid_t guid;
+	unsigned long temp_size;
+	void *temp_buffer;
+	void *data;
+	int i;
+	int ret;
+
+	/* set failure return values */
+	*size = 0;
+	*return_data = NULL;
+
+	if (!efi_enabled(EFI_RUNTIME_SERVICES))
+		return -EOPNOTSUPP;
+
+	uni_name = kzalloc(sizeof(efi_char16_t) * (strlen(name) + 1),
+			   GFP_KERNEL);
+	temp_buffer = kzalloc(EFI_DATA_SIZE, GFP_KERNEL);
+
+	if (!uni_name || !temp_buffer) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	/* input: the size of the buffer */
+	temp_size = EFI_DATA_SIZE;
+
+	/* convert ASCII to unicode - it is a 1:1 mapping */
+	for (i = 0; name[i]; i++)
+		uni_name[i] = name[i];
+
+	/* need a variable for our GUID */
+	guid = HFI1_EFIVAR_GUID;
+
+	/* call into EFI runtime services */
+	status = efi.get_variable(
+			uni_name,
+			&guid,
+			NULL,
+			&temp_size,
+			temp_buffer);
+
+	/*
+	 * It would be nice to call efi_status_to_err() here, but that
+	 * is in the EFIVAR_FS code and may not be compiled in.
+	 * However, even that is insufficient since it does not cover
+	 * EFI_BUFFER_TOO_SMALL which could be an important return.
+	 * For now, just split out succces or not found.
+	 */
+	ret = status == EFI_SUCCESS   ? 0 :
+	      status == EFI_NOT_FOUND ? -ENOENT :
+					-EINVAL;
+	if (ret)
+		goto fail;
+
+	/*
+	 * We have successfully read the EFI variable into our
+	 * temporary buffer.  Now allocate a correctly sized
+	 * buffer.
+	 */
+	data = kmalloc(temp_size, GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	memcpy(data, temp_buffer, temp_size);
+	*size = temp_size;
+	*return_data = data;
+
+fail:
+	kfree(uni_name);
+	kfree(temp_buffer);
+
+	return ret;
+}
+
+/*
+ * Read an HFI1 EFI variable of the form:
+ *	<PCIe address>-<kind>
+ * Return an kalloc'ed array and size of the data.
+ *
+ * Returns 0 on success, -errno on failure.
+ */
+int read_hfi1_efi_var(struct hfi1_devdata *dd, const char *kind,
+		      unsigned long *size, void **return_data)
+{
+	char name[64];
+
+	/* create a common prefix */
+	snprintf(name, sizeof(name), "%04x:%02x:%02x.%x-%s",
+		 pci_domain_nr(dd->pcidev->bus),
+		 dd->pcidev->bus->number,
+		 PCI_SLOT(dd->pcidev->devfn),
+		 PCI_FUNC(dd->pcidev->devfn),
+		 kind);
+
+	return read_efi_var(name, size, return_data);
+}
diff --git a/drivers/staging/rdma/hfi1/efivar.h b/drivers/staging/rdma/hfi1/efivar.h
new file mode 100644
index 000000000000..070706225c51
--- /dev/null
+++ b/drivers/staging/rdma/hfi1/efivar.h
@@ -0,0 +1,60 @@
+/*
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  - Neither the name of Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef _HFI1_EFIVAR_H
+#define _HFI1_EFIVAR_H
+
+#include <linux/efi.h>
+
+#include "hfi.h"
+
+int read_hfi1_efi_var(struct hfi1_devdata *dd, const char *kind,
+		      unsigned long *size, void **return_data);
+
+#endif /* _HFI1_EFIVAR_H */
diff --git a/drivers/staging/rdma/hfi1/eprom.c b/drivers/staging/rdma/hfi1/eprom.c
index b61d3ae93ed1..fb620c97f592 100644
--- a/drivers/staging/rdma/hfi1/eprom.c
+++ b/drivers/staging/rdma/hfi1/eprom.c
@@ -53,17 +53,26 @@
 #include "eprom.h"
 
 /*
- * The EPROM is logically divided into two partitions:
+ * The EPROM is logically divided into three partitions:
  *	partition 0: the first 128K, visible from PCI ROM BAR
- *	partition 1: the rest
+ *	partition 1: 4K config file (sector size)
+ *	partition 2: the rest
  */
 #define P0_SIZE (128 * 1024)
+#define P1_SIZE   (4 * 1024)
 #define P1_START P0_SIZE
+#define P2_START (P0_SIZE + P1_SIZE)
+
+/* erase sizes supported by the controller */
+#define SIZE_4KB (4 * 1024)
+#define MASK_4KB (SIZE_4KB - 1)
 
-/* largest erase size supported by the controller */
 #define SIZE_32KB (32 * 1024)
 #define MASK_32KB (SIZE_32KB - 1)
 
+#define SIZE_64KB (64 * 1024)
+#define MASK_64KB (SIZE_64KB - 1)
+
 /* controller page size, in bytes */
 #define EP_PAGE_SIZE 256
 #define EEP_PAGE_MASK (EP_PAGE_SIZE - 1)
@@ -75,10 +84,12 @@
 #define CMD_READ_DATA(addr)	    ((0x03 << CMD_SHIFT) | addr)
 #define CMD_READ_SR1		    ((0x05 << CMD_SHIFT))
 #define CMD_WRITE_ENABLE	    ((0x06 << CMD_SHIFT))
+#define CMD_SECTOR_ERASE_4KB(addr)  ((0x20 << CMD_SHIFT) | addr)
 #define CMD_SECTOR_ERASE_32KB(addr) ((0x52 << CMD_SHIFT) | addr)
 #define CMD_CHIP_ERASE		    ((0x60 << CMD_SHIFT))
 #define CMD_READ_MANUF_DEV_ID	    ((0x90 << CMD_SHIFT))
 #define CMD_RELEASE_POWERDOWN_NOID  ((0xab << CMD_SHIFT))
+#define CMD_SECTOR_ERASE_64KB(addr) ((0xd8 << CMD_SHIFT) | addr)
 
 /* controller interface speeds */
 #define EP_SPEED_FULL 0x2	/* full speed */
@@ -188,28 +199,43 @@ static int erase_chip(struct hfi1_devdata *dd)
 }
 
 /*
- * Erase a range using the 32KB erase command.
+ * Erase a range.
  */
-static int erase_32kb_range(struct hfi1_devdata *dd, u32 start, u32 end)
+static int erase_range(struct hfi1_devdata *dd, u32 start, u32 len)
 {
+	u32 end = start + len;
 	int ret = 0;
 
 	if (end < start)
 		return -EINVAL;
 
-	if ((start & MASK_32KB) || (end & MASK_32KB)) {
+	/* check the end points for the minimum erase */
+	if ((start & MASK_4KB) || (end & MASK_4KB)) {
 		dd_dev_err(dd,
-			"%s: non-aligned range (0x%x,0x%x) for a 32KB erase\n",
+			"%s: non-aligned range (0x%x,0x%x) for a 4KB erase\n",
 			__func__, start, end);
 		return -EINVAL;
 	}
 
 	write_enable(dd);
 
-	for (; start < end; start += SIZE_32KB) {
+	while (start < end) {
 		write_csr(dd, ASIC_EEP_ADDR_CMD, CMD_WRITE_ENABLE);
-		write_csr(dd, ASIC_EEP_ADDR_CMD,
-						CMD_SECTOR_ERASE_32KB(start));
+		/* check in order of largest to smallest */
+		if (((start & MASK_64KB) == 0) && (start + SIZE_64KB <= end)) {
+			write_csr(dd, ASIC_EEP_ADDR_CMD,
+				  CMD_SECTOR_ERASE_64KB(start));
+			start += SIZE_64KB;
+		} else if (((start & MASK_32KB) == 0) &&
+			   (start + SIZE_32KB <= end)) {
+			write_csr(dd, ASIC_EEP_ADDR_CMD,
+				  CMD_SECTOR_ERASE_32KB(start));
+			start += SIZE_32KB;
+		} else {	/* 4KB will work */
+			write_csr(dd, ASIC_EEP_ADDR_CMD,
+				  CMD_SECTOR_ERASE_4KB(start));
+			start += SIZE_4KB;
+		}
 		ret = wait_for_not_busy(dd);
 		if (ret)
 			goto done;
@@ -309,6 +335,18 @@ done:
 	return ret;
 }
 
+/* convert an range composite to a length, in bytes */
+static inline u32 extract_rlen(u32 composite)
+{
+	return (composite & 0xffff) * EP_PAGE_SIZE;
+}
+
+/* convert an range composite to a start, in bytes */
+static inline u32 extract_rstart(u32 composite)
+{
+	return (composite >> 16) * EP_PAGE_SIZE;
+}
+
 /*
  * Perform the given operation on the EPROM.  Called from user space.  The
  * user credentials have already been checked.
@@ -319,6 +357,8 @@ int handle_eprom_command(const struct hfi1_cmd *cmd)
 {
 	struct hfi1_devdata *dd;
 	u32 dev_id;
+	u32 rlen;	/* range length */
+	u32 rstart;	/* range start */
 	int ret = 0;
 
 	/*
@@ -364,54 +404,29 @@ int handle_eprom_command(const struct hfi1_cmd *cmd)
 								sizeof(u32)))
 			ret = -EFAULT;
 		break;
+
 	case HFI1_CMD_EP_ERASE_CHIP:
 		ret = erase_chip(dd);
 		break;
-	case HFI1_CMD_EP_ERASE_P0:
-		if (cmd->len != P0_SIZE) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = erase_32kb_range(dd, 0, cmd->len);
-		break;
-	case HFI1_CMD_EP_ERASE_P1:
-		/* check for overflow */
-		if (P1_START + cmd->len > ASIC_EEP_ADDR_CMD_EP_ADDR_MASK) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = erase_32kb_range(dd, P1_START, P1_START + cmd->len);
-		break;
-	case HFI1_CMD_EP_READ_P0:
-		if (cmd->len != P0_SIZE) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = read_length(dd, 0, cmd->len, cmd->addr);
-		break;
-	case HFI1_CMD_EP_READ_P1:
-		/* check for overflow */
-		if (P1_START + cmd->len > ASIC_EEP_ADDR_CMD_EP_ADDR_MASK) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = read_length(dd, P1_START, cmd->len, cmd->addr);
+
+	case HFI1_CMD_EP_ERASE_RANGE:
+		rlen = extract_rlen(cmd->len);
+		rstart = extract_rstart(cmd->len);
+		ret = erase_range(dd, rstart, rlen);
 		break;
-	case HFI1_CMD_EP_WRITE_P0:
-		if (cmd->len > P0_SIZE) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = write_length(dd, 0, cmd->len, cmd->addr);
+
+	case HFI1_CMD_EP_READ_RANGE:
+		rlen = extract_rlen(cmd->len);
+		rstart = extract_rstart(cmd->len);
+		ret = read_length(dd, rstart, rlen, cmd->addr);
 		break;
-	case HFI1_CMD_EP_WRITE_P1:
-		/* check for overflow */
-		if (P1_START + cmd->len > ASIC_EEP_ADDR_CMD_EP_ADDR_MASK) {
-			ret = -ERANGE;
-			break;
-		}
-		ret = write_length(dd, P1_START, cmd->len, cmd->addr);
+
+	case HFI1_CMD_EP_WRITE_RANGE:
+		rlen = extract_rlen(cmd->len);
+		rstart = extract_rstart(cmd->len);
+		ret = write_length(dd, rstart, rlen, cmd->addr);
 		break;
+
 	default:
 		dd_dev_err(dd, "%s: unexpected command %d\n",
 			__func__, cmd->type);
diff --git a/drivers/staging/rdma/hfi1/file_ops.c b/drivers/staging/rdma/hfi1/file_ops.c
index aae9826ec62b..d57d549052c8 100644
--- a/drivers/staging/rdma/hfi1/file_ops.c
+++ b/drivers/staging/rdma/hfi1/file_ops.c
@@ -47,20 +47,10 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
-#include <linux/pci.h>
 #include <linux/poll.h>
 #include <linux/cdev.h>
-#include <linux/swap.h>
 #include <linux/vmalloc.h>
-#include <linux/highmem.h>
 #include <linux/io.h>
-#include <linux/jiffies.h>
-#include <asm/pgtable.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-#include <linux/module.h>
-#include <linux/cred.h>
-#include <linux/uio.h>
 
 #include "hfi.h"
 #include "pio.h"
@@ -68,6 +58,7 @@
 #include "common.h"
 #include "trace.h"
 #include "user_sdma.h"
+#include "user_exp_rcv.h"
 #include "eprom.h"
 
 #undef pr_fmt
@@ -170,18 +161,6 @@ enum mmap_types {
 	HFI1_MMAP_TOKEN_SET(SUBCTXT, subctxt) | \
 	HFI1_MMAP_TOKEN_SET(OFFSET, (offset_in_page(addr))))
 
-#define EXP_TID_SET(field, value)			\
-	(((value) & EXP_TID_TID##field##_MASK) <<	\
-	 EXP_TID_TID##field##_SHIFT)
-#define EXP_TID_CLEAR(tid, field) {					\
-		(tid) &= ~(EXP_TID_TID##field##_MASK <<			\
-			   EXP_TID_TID##field##_SHIFT);			\
-			}
-#define EXP_TID_RESET(tid, field, value) do {				\
-		EXP_TID_CLEAR(tid, field);				\
-		(tid) |= EXP_TID_SET(field, value);			\
-	} while (0)
-
 #define dbg(fmt, ...)				\
 	pr_info(fmt, ##__VA_ARGS__)
 
@@ -204,7 +183,8 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
 			       size_t count, loff_t *offset)
 {
 	const struct hfi1_cmd __user *ucmd;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_cmd cmd;
 	struct hfi1_user_info uinfo;
 	struct hfi1_tid_info tinfo;
@@ -254,12 +234,9 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
 		break;
 	case HFI1_CMD_EP_INFO:
 	case HFI1_CMD_EP_ERASE_CHIP:
-	case HFI1_CMD_EP_ERASE_P0:
-	case HFI1_CMD_EP_ERASE_P1:
-	case HFI1_CMD_EP_READ_P0:
-	case HFI1_CMD_EP_READ_P1:
-	case HFI1_CMD_EP_WRITE_P0:
-	case HFI1_CMD_EP_WRITE_P1:
+	case HFI1_CMD_EP_ERASE_RANGE:
+	case HFI1_CMD_EP_READ_RANGE:
+	case HFI1_CMD_EP_WRITE_RANGE:
 		uctxt_required = 0;	/* assigned user context not required */
 		must_be_root = 1;	/* validate user */
 		copy = 0;
@@ -338,17 +315,17 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
 		ret = exp_tid_free(fp, &tinfo);
 		break;
 	case HFI1_CMD_RECV_CTRL:
-		ret = manage_rcvq(uctxt, subctxt_fp(fp), (int)user_val);
+		ret = manage_rcvq(uctxt, fd->subctxt, (int)user_val);
 		break;
 	case HFI1_CMD_POLL_TYPE:
 		uctxt->poll_type = (typeof(uctxt->poll_type))user_val;
 		break;
 	case HFI1_CMD_ACK_EVENT:
-		ret = user_event_ack(uctxt, subctxt_fp(fp), user_val);
+		ret = user_event_ack(uctxt, fd->subctxt, user_val);
 		break;
 	case HFI1_CMD_SET_PKEY:
 		if (HFI1_CAP_IS_USET(PKEY_CHECK))
-			ret = set_ctxt_pkey(uctxt, subctxt_fp(fp), user_val);
+			ret = set_ctxt_pkey(uctxt, fd->subctxt, user_val);
 		else
 			ret = -EPERM;
 		break;
@@ -413,12 +390,9 @@ static ssize_t hfi1_file_write(struct file *fp, const char __user *data,
 	}
 	case HFI1_CMD_EP_INFO:
 	case HFI1_CMD_EP_ERASE_CHIP:
-	case HFI1_CMD_EP_ERASE_P0:
-	case HFI1_CMD_EP_ERASE_P1:
-	case HFI1_CMD_EP_READ_P0:
-	case HFI1_CMD_EP_READ_P1:
-	case HFI1_CMD_EP_WRITE_P0:
-	case HFI1_CMD_EP_WRITE_P1:
+	case HFI1_CMD_EP_ERASE_RANGE:
+	case HFI1_CMD_EP_READ_RANGE:
+	case HFI1_CMD_EP_WRITE_RANGE:
 		ret = handle_eprom_command(&cmd);
 		break;
 	}
@@ -431,13 +405,13 @@ bail:
 
 static ssize_t hfi1_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 {
-	struct hfi1_user_sdma_pkt_q *pq;
-	struct hfi1_user_sdma_comp_q *cq;
+	struct hfi1_filedata *fd = kiocb->ki_filp->private_data;
+	struct hfi1_user_sdma_pkt_q *pq = fd->pq;
+	struct hfi1_user_sdma_comp_q *cq = fd->cq;
 	int ret = 0, done = 0, reqs = 0;
 	unsigned long dim = from->nr_segs;
 
-	if (!user_sdma_comp_fp(kiocb->ki_filp) ||
-	    !user_sdma_pkt_fp(kiocb->ki_filp)) {
+	if (!cq || !pq) {
 		ret = -EIO;
 		goto done;
 	}
@@ -448,10 +422,7 @@ static ssize_t hfi1_write_iter(struct kiocb *kiocb, struct iov_iter *from)
 	}
 
 	hfi1_cdbg(SDMA, "SDMA request from %u:%u (%lu)",
-		  ctxt_fp(kiocb->ki_filp)->ctxt, subctxt_fp(kiocb->ki_filp),
-		  dim);
-	pq = user_sdma_pkt_fp(kiocb->ki_filp);
-	cq = user_sdma_comp_fp(kiocb->ki_filp);
+		  fd->uctxt->ctxt, fd->subctxt, dim);
 
 	if (atomic_read(&pq->n_reqs) == pq->n_max_reqs) {
 		ret = -ENOSPC;
@@ -476,7 +447,8 @@ done:
 
 static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma)
 {
-	struct hfi1_ctxtdata *uctxt;
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd;
 	unsigned long flags, pfn;
 	u64 token = vma->vm_pgoff << PAGE_SHIFT,
@@ -486,7 +458,6 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma)
 	int ret = 0;
 	u16 ctxt;
 
-	uctxt = ctxt_fp(fp);
 	if (!is_valid_mmap(token) || !uctxt ||
 	    !(vma->vm_flags & VM_SHARED)) {
 		ret = -EINVAL;
@@ -496,7 +467,7 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma)
 	ctxt = HFI1_MMAP_TOKEN_GET(CTXT, token);
 	subctxt = HFI1_MMAP_TOKEN_GET(SUBCTXT, token);
 	type = HFI1_MMAP_TOKEN_GET(TYPE, token);
-	if (ctxt != uctxt->ctxt || subctxt != subctxt_fp(fp)) {
+	if (ctxt != uctxt->ctxt || subctxt != fd->subctxt) {
 		ret = -EINVAL;
 		goto done;
 	}
@@ -660,13 +631,12 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma)
 		vmf = 1;
 		break;
 	case SDMA_COMP: {
-		struct hfi1_user_sdma_comp_q *cq;
+		struct hfi1_user_sdma_comp_q *cq = fd->cq;
 
-		if (!user_sdma_comp_fp(fp)) {
+		if (!cq) {
 			ret = -EFAULT;
 			goto done;
 		}
-		cq = user_sdma_comp_fp(fp);
 		memaddr = (u64)cq->comps;
 		memlen = ALIGN(sizeof(*cq->comps) * cq->nentries, PAGE_SIZE);
 		flags |= VM_IO | VM_DONTEXPAND;
@@ -680,16 +650,16 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma)
 
 	if ((vma->vm_end - vma->vm_start) != memlen) {
 		hfi1_cdbg(PROC, "%u:%u Memory size mismatch %lu:%lu",
-			  uctxt->ctxt, subctxt_fp(fp),
+			  uctxt->ctxt, fd->subctxt,
 			  (vma->vm_end - vma->vm_start), memlen);
 		ret = -EINVAL;
 		goto done;
 	}
 
 	vma->vm_flags = flags;
-	dd_dev_info(dd,
-		    "%s: %u:%u type:%u io/vf:%d/%d, addr:0x%llx, len:%lu(%lu), flags:0x%lx\n",
-		    __func__, ctxt, subctxt, type, mapio, vmf, memaddr, memlen,
+	hfi1_cdbg(PROC,
+		  "%u:%u type:%u io/vf:%d/%d, addr:0x%llx, len:%lu(%lu), flags:0x%lx\n",
+		    ctxt, subctxt, type, mapio, vmf, memaddr, memlen,
 		    vma->vm_end - vma->vm_start, vma->vm_flags);
 	pfn = (unsigned long)(memaddr >> PAGE_SHIFT);
 	if (vmf) {
@@ -730,7 +700,7 @@ static unsigned int hfi1_poll(struct file *fp, struct poll_table_struct *pt)
 	struct hfi1_ctxtdata *uctxt;
 	unsigned pollflag;
 
-	uctxt = ctxt_fp(fp);
+	uctxt = ((struct hfi1_filedata *)fp->private_data)->uctxt;
 	if (!uctxt)
 		pollflag = POLLERR;
 	else if (uctxt->poll_type == HFI1_POLL_TYPE_URGENT)
@@ -761,8 +731,7 @@ static int hfi1_file_close(struct inode *inode, struct file *fp)
 
 	flush_wc();
 	/* drain user sdma queue */
-	if (fdata->pq)
-		hfi1_user_sdma_free_queues(fdata);
+	hfi1_user_sdma_free_queues(fdata);
 
 	/*
 	 * Clear any left over, unhandled events so the next process that
@@ -874,6 +843,14 @@ done:
 	return ret;
 }
 
+/* return true if the device available for general use */
+static int usable_device(struct hfi1_devdata *dd)
+{
+	struct hfi1_pportdata *ppd = dd->pport;
+
+	return driver_lstate(ppd) == IB_PORT_ACTIVE;
+}
+
 static int get_user_context(struct file *fp, struct hfi1_user_info *uinfo,
 			    int devno, unsigned alg)
 {
@@ -903,7 +880,11 @@ static int get_user_context(struct file *fp, struct hfi1_user_info *uinfo,
 
 			for (dev = 0; dev < devmax; dev++) {
 				pdd = hfi1_lookup(dev);
-				if (pdd && pdd->freectxts &&
+				if (!pdd)
+					continue;
+				if (!usable_device(pdd))
+					continue;
+				if (pdd->freectxts &&
 				    pdd->freectxts > free) {
 					dd = pdd;
 					free = pdd->freectxts;
@@ -912,7 +893,11 @@ static int get_user_context(struct file *fp, struct hfi1_user_info *uinfo,
 		} else {
 			for (dev = 0; dev < devmax; dev++) {
 				pdd = hfi1_lookup(dev);
-				if (pdd && pdd->freectxts) {
+				if (!pdd)
+					continue;
+				if (!usable_device(pdd))
+					continue;
+				if (pdd->freectxts) {
 					dd = pdd;
 					break;
 				}
@@ -930,13 +915,13 @@ static int find_shared_ctxt(struct file *fp,
 {
 	int devmax, ndev, i;
 	int ret = 0;
+	struct hfi1_filedata *fd = fp->private_data;
 
 	devmax = hfi1_count_units(NULL, NULL);
 
 	for (ndev = 0; ndev < devmax; ndev++) {
 		struct hfi1_devdata *dd = hfi1_lookup(ndev);
 
-		/* device portion of usable() */
 		if (!(dd && (dd->flags & HFI1_PRESENT) && dd->kregbase))
 			continue;
 		for (i = dd->first_user_ctxt; i < dd->num_rcv_contexts; i++) {
@@ -959,10 +944,10 @@ static int find_shared_ctxt(struct file *fp,
 				ret = -EINVAL;
 				goto done;
 			}
-			ctxt_fp(fp) = uctxt;
-			subctxt_fp(fp) = uctxt->cnt++;
-			uctxt->subpid[subctxt_fp(fp)] = current->pid;
-			uctxt->active_slaves |= 1 << subctxt_fp(fp);
+			fd->uctxt = uctxt;
+			fd->subctxt  = uctxt->cnt++;
+			uctxt->subpid[fd->subctxt] = current->pid;
+			uctxt->active_slaves |= 1 << fd->subctxt;
 			ret = 1;
 			goto done;
 		}
@@ -975,6 +960,7 @@ done:
 static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
 			 struct hfi1_user_info *uinfo)
 {
+	struct hfi1_filedata *fd = fp->private_data;
 	struct hfi1_ctxtdata *uctxt;
 	unsigned ctxt;
 	int ret;
@@ -1011,8 +997,8 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
 	if (!uctxt->sc)
 		return -ENOMEM;
 
-	dbg("allocated send context %u(%u)\n", uctxt->sc->sw_index,
-		uctxt->sc->hw_context);
+	hfi1_cdbg(PROC, "allocated send context %u(%u)\n", uctxt->sc->sw_index,
+		  uctxt->sc->hw_context);
 	ret = sc_enable(uctxt->sc);
 	if (ret)
 		return ret;
@@ -1022,7 +1008,7 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
 	 * This has to be done here so the rest of the sub-contexts find the
 	 * proper master.
 	 */
-	if (uinfo->subctxt_cnt && !subctxt_fp(fp)) {
+	if (uinfo->subctxt_cnt && !fd->subctxt) {
 		ret = init_subctxts(uctxt, uinfo);
 		/*
 		 * On error, we don't need to disable and de-allocate the
@@ -1042,7 +1028,7 @@ static int allocate_ctxt(struct file *fp, struct hfi1_devdata *dd,
 	spin_lock_init(&uctxt->sdma_qlock);
 	hfi1_stats.sps_ctxts++;
 	dd->freectxts--;
-	ctxt_fp(fp) = uctxt;
+	fd->uctxt = uctxt;
 
 	return 0;
 }
@@ -1106,7 +1092,8 @@ static int user_init(struct file *fp)
 {
 	int ret;
 	unsigned int rcvctrl_ops = 0;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 
 	/* make sure that the context has already been setup */
 	if (!test_bit(HFI1_CTXT_SETUP_DONE, &uctxt->event_flags)) {
@@ -1118,7 +1105,7 @@ static int user_init(struct file *fp)
 	 * Subctxts don't need to initialize anything since master
 	 * has done it.
 	 */
-	if (subctxt_fp(fp)) {
+	if (fd->subctxt) {
 		ret = wait_event_interruptible(uctxt->wait,
 			!test_bit(HFI1_CTXT_MASTER_UNINIT,
 			&uctxt->event_flags));
@@ -1178,8 +1165,8 @@ done:
 static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len)
 {
 	struct hfi1_ctxt_info cinfo;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
 	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	int ret = 0;
 
 	memset(&cinfo, 0, sizeof(cinfo));
@@ -1189,7 +1176,7 @@ static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len)
 	cinfo.num_active = hfi1_count_active_units();
 	cinfo.unit = uctxt->dd->unit;
 	cinfo.ctxt = uctxt->ctxt;
-	cinfo.subctxt = subctxt_fp(fp);
+	cinfo.subctxt = fd->subctxt;
 	cinfo.rcvtids = roundup(uctxt->egrbufs.alloced,
 				uctxt->dd->rcv_entries.group_size) +
 		uctxt->expected_count;
@@ -1201,10 +1188,10 @@ static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len)
 	cinfo.egrtids = uctxt->egrbufs.alloced;
 	cinfo.rcvhdrq_cnt = uctxt->rcvhdrq_cnt;
 	cinfo.rcvhdrq_entsize = uctxt->rcvhdrqentsize << 2;
-	cinfo.sdma_ring_size = user_sdma_comp_fp(fp)->nentries;
+	cinfo.sdma_ring_size = fd->cq->nentries;
 	cinfo.rcvegr_size = uctxt->egrbufs.rcvtid_size;
 
-	trace_hfi1_ctxt_info(uctxt->dd, uctxt->ctxt, subctxt_fp(fp), cinfo);
+	trace_hfi1_ctxt_info(uctxt->dd, uctxt->ctxt, fd->subctxt, cinfo);
 	if (copy_to_user(ubase, &cinfo, sizeof(cinfo)))
 		ret = -EFAULT;
 done:
@@ -1213,7 +1200,8 @@ done:
 
 static int setup_ctxt(struct file *fp)
 {
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	int ret = 0;
 
@@ -1222,7 +1210,7 @@ static int setup_ctxt(struct file *fp)
 	 * programming of eager buffers. This is done if context sharing
 	 * is not requested or by the master process.
 	 */
-	if (!uctxt->subctxt_cnt || !subctxt_fp(fp)) {
+	if (!uctxt->subctxt_cnt || !fd->subctxt) {
 		ret = hfi1_init_ctxt(uctxt->sc);
 		if (ret)
 			goto done;
@@ -1234,7 +1222,7 @@ static int setup_ctxt(struct file *fp)
 		ret = hfi1_setup_eagerbufs(uctxt);
 		if (ret)
 			goto done;
-		if (uctxt->subctxt_cnt && !subctxt_fp(fp)) {
+		if (uctxt->subctxt_cnt && !fd->subctxt) {
 			ret = setup_subctxt(uctxt);
 			if (ret)
 				goto done;
@@ -1277,7 +1265,7 @@ static int setup_ctxt(struct file *fp)
 			uctxt->tidusemap[uctxt->tidmapcnt - 1] =
 				~((1ULL << (uctxt->numtidgroups %
 					    BITS_PER_LONG)) - 1);
-		trace_hfi1_exp_tid_map(uctxt->ctxt, subctxt_fp(fp), 0,
+		trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 0,
 				       uctxt->tidusemap, uctxt->tidmapcnt);
 	}
 	ret = hfi1_user_sdma_alloc_queues(uctxt, fp);
@@ -1292,7 +1280,8 @@ done:
 static int get_base_info(struct file *fp, void __user *ubase, __u32 len)
 {
 	struct hfi1_base_info binfo;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	ssize_t sz;
 	unsigned offset;
@@ -1314,50 +1303,50 @@ static int get_base_info(struct file *fp, void __user *ubase, __u32 len)
 	offset = ((u64)uctxt->sc->hw_free -
 		  (u64)dd->cr_base[uctxt->numa_id].va) % PAGE_SIZE;
 	binfo.sc_credits_addr = HFI1_MMAP_TOKEN(PIO_CRED, uctxt->ctxt,
-					       subctxt_fp(fp), offset);
+						fd->subctxt, offset);
 	binfo.pio_bufbase = HFI1_MMAP_TOKEN(PIO_BUFS, uctxt->ctxt,
-					    subctxt_fp(fp),
+					    fd->subctxt,
 					    uctxt->sc->base_addr);
 	binfo.pio_bufbase_sop = HFI1_MMAP_TOKEN(PIO_BUFS_SOP,
 						uctxt->ctxt,
-						subctxt_fp(fp),
+						fd->subctxt,
 						uctxt->sc->base_addr);
 	binfo.rcvhdr_bufbase = HFI1_MMAP_TOKEN(RCV_HDRQ, uctxt->ctxt,
-					       subctxt_fp(fp),
+					       fd->subctxt,
 					       uctxt->rcvhdrq);
 	binfo.rcvegr_bufbase = HFI1_MMAP_TOKEN(RCV_EGRBUF, uctxt->ctxt,
-					       subctxt_fp(fp),
+					       fd->subctxt,
 					       uctxt->egrbufs.rcvtids[0].phys);
 	binfo.sdma_comp_bufbase = HFI1_MMAP_TOKEN(SDMA_COMP, uctxt->ctxt,
-						 subctxt_fp(fp), 0);
+						 fd->subctxt, 0);
 	/*
 	 * user regs are at
 	 * (RXE_PER_CONTEXT_USER + (ctxt * RXE_PER_CONTEXT_SIZE))
 	 */
 	binfo.user_regbase = HFI1_MMAP_TOKEN(UREGS, uctxt->ctxt,
-					    subctxt_fp(fp), 0);
+					    fd->subctxt, 0);
 	offset = offset_in_page((((uctxt->ctxt - dd->first_user_ctxt) *
-		    HFI1_MAX_SHARED_CTXTS) + subctxt_fp(fp)) *
+		    HFI1_MAX_SHARED_CTXTS) + fd->subctxt) *
 		  sizeof(*dd->events));
 	binfo.events_bufbase = HFI1_MMAP_TOKEN(EVENTS, uctxt->ctxt,
-					      subctxt_fp(fp),
+					      fd->subctxt,
 					      offset);
 	binfo.status_bufbase = HFI1_MMAP_TOKEN(STATUS, uctxt->ctxt,
-					      subctxt_fp(fp),
+					      fd->subctxt,
 					      dd->status);
 	if (HFI1_CAP_IS_USET(DMA_RTAIL))
 		binfo.rcvhdrtail_base = HFI1_MMAP_TOKEN(RTAIL, uctxt->ctxt,
-						       subctxt_fp(fp), 0);
+						       fd->subctxt, 0);
 	if (uctxt->subctxt_cnt) {
 		binfo.subctxt_uregbase = HFI1_MMAP_TOKEN(SUBCTXT_UREGS,
 							uctxt->ctxt,
-							subctxt_fp(fp), 0);
+							fd->subctxt, 0);
 		binfo.subctxt_rcvhdrbuf = HFI1_MMAP_TOKEN(SUBCTXT_RCV_HDRQ,
 							 uctxt->ctxt,
-							 subctxt_fp(fp), 0);
+							 fd->subctxt, 0);
 		binfo.subctxt_rcvegrbuf = HFI1_MMAP_TOKEN(SUBCTXT_EGRBUF,
 							 uctxt->ctxt,
-							 subctxt_fp(fp), 0);
+							 fd->subctxt, 0);
 	}
 	sz = (len < sizeof(binfo)) ? len : sizeof(binfo);
 	if (copy_to_user(ubase, &binfo, sz))
@@ -1368,7 +1357,8 @@ static int get_base_info(struct file *fp, void __user *ubase, __u32 len)
 static unsigned int poll_urgent(struct file *fp,
 				struct poll_table_struct *pt)
 {
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	unsigned pollflag;
 
@@ -1390,7 +1380,8 @@ static unsigned int poll_urgent(struct file *fp,
 static unsigned int poll_next(struct file *fp,
 			      struct poll_table_struct *pt)
 {
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	unsigned pollflag;
 
@@ -1562,7 +1553,8 @@ static inline unsigned num_free_groups(unsigned long map, u16 *start)
 static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
 {
 	int ret = 0;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	unsigned tid, mapped = 0, npages, ngroups, exp_groups,
 		tidpairs = uctxt->expected_count / 2;
@@ -1671,8 +1663,8 @@ static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
 		 * Now that we know how many free RcvArray entries we have,
 		 * we can pin that many user pages.
 		 */
-		ret = hfi1_get_user_pages(vaddr + (mapped * PAGE_SIZE),
-					  pinned, pages);
+		ret = hfi1_acquire_user_pages(vaddr + (mapped * PAGE_SIZE),
+					      pinned, true, pages);
 		if (ret) {
 			/*
 			 * We can't continue because the pages array won't be
@@ -1718,7 +1710,7 @@ static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
 						   pages[pmapped], 0,
 						   tidsize, PCI_DMA_FROMDEVICE);
 				trace_hfi1_exp_rcv_set(uctxt->ctxt,
-						       subctxt_fp(fp),
+						       fd->subctxt,
 						       tid, vaddr,
 						       phys[pmapped],
 						       pages[pmapped]);
@@ -1763,7 +1755,7 @@ static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
 			   (((useidx & 0xffffff) << 16) |
 			    ((bitidx + bits_used) & 0xffffff)));
 	}
-	trace_hfi1_exp_tid_map(uctxt->ctxt, subctxt_fp(fp), 0, uctxt->tidusemap,
+	trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 0, uctxt->tidusemap,
 			       uctxt->tidmapcnt);
 
 done:
@@ -1792,7 +1784,8 @@ bail:
 
 static int exp_tid_free(struct file *fp, struct hfi1_tid_info *tinfo)
 {
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
 	struct hfi1_devdata *dd = uctxt->dd;
 	unsigned long tidmap[uctxt->tidmapcnt];
 	struct page **pages;
@@ -1828,7 +1821,7 @@ static int exp_tid_free(struct file *fp, struct hfi1_tid_info *tinfo)
 					hfi1_put_tid(dd, tid, PT_INVALID,
 						      0, 0);
 					trace_hfi1_exp_rcv_free(uctxt->ctxt,
-								subctxt_fp(fp),
+								fd->subctxt,
 								tid, phys[i],
 								pages[i]);
 					pci_unmap_page(dd->pcidev, phys[i],
@@ -1840,12 +1833,12 @@ static int exp_tid_free(struct file *fp, struct hfi1_tid_info *tinfo)
 				}
 			}
 			flush_wc();
-			hfi1_release_user_pages(pshadow, pcount);
+			hfi1_release_user_pages(pshadow, pcount, true);
 			clear_bit(bitidx, &uctxt->tidusemap[idx]);
 			map &= ~(1ULL<<bitidx);
 		}
 	}
-	trace_hfi1_exp_tid_map(uctxt->ctxt, subctxt_fp(fp), 1, uctxt->tidusemap,
+	trace_hfi1_exp_tid_map(uctxt->ctxt, fd->subctxt, 1, uctxt->tidusemap,
 			       uctxt->tidmapcnt);
 done:
 	return ret;
@@ -1869,7 +1862,7 @@ static void unlock_exp_tids(struct hfi1_ctxtdata *uctxt)
 		uctxt->physshadow[tid] = 0;
 		uctxt->tid_pg_list[tid] = NULL;
 		pci_unmap_page(dd->pcidev, phys, PAGE_SIZE, PCI_DMA_FROMDEVICE);
-		hfi1_release_user_pages(&p, 1);
+		hfi1_release_user_pages(&p, 1, true);
 	}
 }
 
diff --git a/drivers/staging/rdma/hfi1/firmware.c b/drivers/staging/rdma/hfi1/firmware.c
index b4bdcf341aac..28ae42faa018 100644
--- a/drivers/staging/rdma/hfi1/firmware.c
+++ b/drivers/staging/rdma/hfi1/firmware.c
@@ -68,6 +68,10 @@
 #define DEFAULT_FW_SBUS_NAME "hfi1_sbus.fw"
 #define DEFAULT_FW_PCIE_NAME "hfi1_pcie.fw"
 #define DEFAULT_PLATFORM_CONFIG_NAME "hfi1_platform.dat"
+#define ALT_FW_8051_NAME_ASIC "hfi1_dc8051_d.fw"
+#define ALT_FW_FABRIC_NAME "hfi1_fabric_d.fw"
+#define ALT_FW_SBUS_NAME "hfi1_sbus_d.fw"
+#define ALT_FW_PCIE_NAME "hfi1_pcie_d.fw"
 
 static uint fw_8051_load = 1;
 static uint fw_fabric_serdes_load = 1;
@@ -158,7 +162,8 @@ struct firmware_details {
 static DEFINE_MUTEX(fw_mutex);
 enum fw_state {
 	FW_EMPTY,
-	FW_ACQUIRED,
+	FW_TRY,
+	FW_FINAL,
 	FW_ERR
 };
 static enum fw_state fw_state = FW_EMPTY;
@@ -428,8 +433,8 @@ static int obtain_one_firmware(struct hfi1_devdata *dd, const char *name,
 
 	ret = request_firmware(&fdet->fw, name, &dd->pcidev->dev);
 	if (ret) {
-		dd_dev_err(dd, "cannot load firmware \"%s\", err %d\n",
-			name, ret);
+		dd_dev_err(dd, "cannot find firmware \"%s\", err %d\n",
+			   name, ret);
 		return ret;
 	}
 
@@ -539,28 +544,53 @@ done:
 static void dispose_one_firmware(struct firmware_details *fdet)
 {
 	release_firmware(fdet->fw);
-	fdet->fw = NULL;
+	/* erase all previous information */
+	memset(fdet, 0, sizeof(*fdet));
 }
 
 /*
- * Called by all HFIs when loading their firmware - i.e. device probe time.
- * The first one will do the actual firmware load.  Use a mutex to resolve
- * any possible race condition.
+ * Obtain the 4 firmwares from the OS.  All must be obtained at once or not
+ * at all.  If called with the firmware state in FW_TRY, use alternate names.
+ * On exit, this routine will have set the firmware state to one of FW_TRY,
+ * FW_FINAL, or FW_ERR.
  *
- * The call to this routine cannot be moved to driver load because the kernel
- * call request_firmware() requires a device which is only available after
- * the first device probe.
+ * Must be holding fw_mutex.
  */
-static int obtain_firmware(struct hfi1_devdata *dd)
+static void __obtain_firmware(struct hfi1_devdata *dd)
 {
 	int err = 0;
 
-	mutex_lock(&fw_mutex);
-	if (fw_state == FW_ACQUIRED) {
-		goto done;	/* already acquired */
-	} else if (fw_state == FW_ERR) {
-		err = fw_err;
-		goto done;	/* already tried and failed */
+	if (fw_state == FW_FINAL)	/* nothing more to obtain */
+		return;
+	if (fw_state == FW_ERR)		/* already in error */
+		return;
+
+	/* fw_state is FW_EMPTY or FW_TRY */
+retry:
+	if (fw_state == FW_TRY) {
+		/*
+		 * We tried the original and it failed.  Move to the
+		 * alternate.
+		 */
+		dd_dev_info(dd, "using alternate firmware names\n");
+		/*
+		 * Let others run.  Some systems, when missing firmware, does
+		 * something that holds for 30 seconds.  If we do that twice
+		 * in a row it triggers task blocked warning.
+		 */
+		cond_resched();
+		if (fw_8051_load)
+			dispose_one_firmware(&fw_8051);
+		if (fw_fabric_serdes_load)
+			dispose_one_firmware(&fw_fabric);
+		if (fw_sbus_load)
+			dispose_one_firmware(&fw_sbus);
+		if (fw_pcie_serdes_load)
+			dispose_one_firmware(&fw_pcie);
+		fw_8051_name = ALT_FW_8051_NAME_ASIC;
+		fw_fabric_serdes_name = ALT_FW_FABRIC_NAME;
+		fw_sbus_name = ALT_FW_SBUS_NAME;
+		fw_pcie_serdes_name = ALT_FW_PCIE_NAME;
 	}
 
 	if (fw_8051_load) {
@@ -588,27 +618,82 @@ static int obtain_firmware(struct hfi1_devdata *dd)
 			goto done;
 	}
 
+done:
+	if (err) {
+		/* oops, had problems obtaining a firmware */
+		if (fw_state == FW_EMPTY) {
+			/* retry with alternate */
+			fw_state = FW_TRY;
+			goto retry;
+		}
+		fw_state = FW_ERR;
+		fw_err = -ENOENT;
+	} else {
+		/* success */
+		if (fw_state == FW_EMPTY)
+			fw_state = FW_TRY;	/* may retry later */
+		else
+			fw_state = FW_FINAL;	/* cannot try again */
+	}
+}
+
+/*
+ * Called by all HFIs when loading their firmware - i.e. device probe time.
+ * The first one will do the actual firmware load.  Use a mutex to resolve
+ * any possible race condition.
+ *
+ * The call to this routine cannot be moved to driver load because the kernel
+ * call request_firmware() requires a device which is only available after
+ * the first device probe.
+ */
+static int obtain_firmware(struct hfi1_devdata *dd)
+{
+	unsigned long timeout;
+	int err = 0;
+
+	mutex_lock(&fw_mutex);
+
+	/* 40s delay due to long delay on missing firmware on some systems */
+	timeout = jiffies + msecs_to_jiffies(40000);
+	while (fw_state == FW_TRY) {
+		/*
+		 * Another device is trying the firmware.  Wait until it
+		 * decides what works (or not).
+		 */
+		if (time_after(jiffies, timeout)) {
+			/* waited too long */
+			dd_dev_err(dd, "Timeout waiting for firmware try");
+			fw_state = FW_ERR;
+			fw_err = -ETIMEDOUT;
+			break;
+		}
+		mutex_unlock(&fw_mutex);
+		msleep(20);	/* arbitrary delay */
+		mutex_lock(&fw_mutex);
+	}
+	/* not in FW_TRY state */
+
+	if (fw_state == FW_FINAL)
+		goto done;	/* already acquired */
+	else if (fw_state == FW_ERR)
+		goto done;	/* already tried and failed */
+	/* fw_state is FW_EMPTY */
+
+	/* set fw_state to FW_TRY, FW_FINAL, or FW_ERR, and fw_err */
+	__obtain_firmware(dd);
+
 	if (platform_config_load) {
 		platform_config = NULL;
 		err = request_firmware(&platform_config, platform_config_name,
 						&dd->pcidev->dev);
-		if (err) {
-			err = 0;
+		if (err)
 			platform_config = NULL;
-		}
 	}
 
-	/* success */
-	fw_state = FW_ACQUIRED;
-
 done:
-	if (err) {
-		fw_err = err;
-		fw_state = FW_ERR;
-	}
 	mutex_unlock(&fw_mutex);
 
-	return err;
+	return fw_err;
 }
 
 /*
@@ -638,6 +723,38 @@ void dispose_firmware(void)
 }
 
 /*
+ * Called with the result of a firmware download.
+ *
+ * Return 1 to retry loading the firmware, 0 to stop.
+ */
+static int retry_firmware(struct hfi1_devdata *dd, int load_result)
+{
+	int retry;
+
+	mutex_lock(&fw_mutex);
+
+	if (load_result == 0) {
+		/*
+		 * The load succeeded, so expect all others to do the same.
+		 * Do not retry again.
+		 */
+		if (fw_state == FW_TRY)
+			fw_state = FW_FINAL;
+		retry = 0;	/* do NOT retry */
+	} else if (fw_state == FW_TRY) {
+		/* load failed, obtain alternate firmware */
+		__obtain_firmware(dd);
+		retry = (fw_state == FW_FINAL);
+	} else {
+		/* else in FW_FINAL or FW_ERR, no retry in either case */
+		retry = 0;
+	}
+
+	mutex_unlock(&fw_mutex);
+	return retry;
+}
+
+/*
  * Write a block of data to a given array CSR.  All calls will be in
  * multiples of 8 bytes.
  */
@@ -951,7 +1068,7 @@ void sbus_request(struct hfi1_devdata *dd,
 static void turn_off_spicos(struct hfi1_devdata *dd, int flags)
 {
 	/* only needed on A0 */
-	if (!is_a0(dd))
+	if (!is_ax(dd))
 		return;
 
 	dd_dev_info(dd, "Turning off spicos:%s%s\n",
@@ -1248,7 +1365,9 @@ int load_firmware(struct hfi1_devdata *dd)
 				fabric_serdes_addrs[dd->hfi1_id],
 				NUM_FABRIC_SERDES);
 		turn_off_spicos(dd, SPICO_FABRIC);
-		ret = load_fabric_serdes_firmware(dd, &fw_fabric);
+		do {
+			ret = load_fabric_serdes_firmware(dd, &fw_fabric);
+		} while (retry_firmware(dd, ret));
 
 		clear_sbus_fast_mode(dd);
 		release_hw_mutex(dd);
@@ -1257,7 +1376,9 @@ int load_firmware(struct hfi1_devdata *dd)
 	}
 
 	if (fw_8051_load) {
-		ret = load_8051_firmware(dd, &fw_8051);
+		do {
+			ret = load_8051_firmware(dd, &fw_8051);
+		} while (retry_firmware(dd, ret));
 		if (ret)
 			return ret;
 	}
@@ -1568,9 +1689,11 @@ int load_pcie_firmware(struct hfi1_devdata *dd)
 	/* both firmware loads below use the SBus */
 	set_sbus_fast_mode(dd);
 
-	if (fw_sbus_load && (dd->flags & HFI1_DO_INIT_ASIC)) {
+	if (fw_sbus_load) {
 		turn_off_spicos(dd, SPICO_SBUS);
-		ret = load_sbus_firmware(dd, &fw_sbus);
+		do {
+			ret = load_sbus_firmware(dd, &fw_sbus);
+		} while (retry_firmware(dd, ret));
 		if (ret)
 			goto done;
 	}
@@ -1581,7 +1704,9 @@ int load_pcie_firmware(struct hfi1_devdata *dd)
 					pcie_serdes_broadcast[dd->hfi1_id],
 					pcie_serdes_addrs[dd->hfi1_id],
 					NUM_PCIE_SERDES);
-		ret = load_pcie_serdes_firmware(dd, &fw_pcie);
+		do {
+			ret = load_pcie_serdes_firmware(dd, &fw_pcie);
+		} while (retry_firmware(dd, ret));
 		if (ret)
 			goto done;
 	}
diff --git a/drivers/staging/rdma/hfi1/hfi.h b/drivers/staging/rdma/hfi1/hfi.h
index 190f7a2f6773..2611bb2e764d 100644
--- a/drivers/staging/rdma/hfi1/hfi.h
+++ b/drivers/staging/rdma/hfi1/hfi.h
@@ -100,6 +100,26 @@ extern unsigned long hfi1_cap_mask;
 			HFI1_CAP_MISC_MASK)
 
 /*
+ * Control context is always 0 and handles the error packets.
+ * It also handles the VL15 and multicast packets.
+ */
+#define HFI1_CTRL_CTXT    0
+
+/*
+ * Driver context will store software counters for each of the events
+ * associated with these status registers
+ */
+#define NUM_CCE_ERR_STATUS_COUNTERS 41
+#define NUM_RCV_ERR_STATUS_COUNTERS 64
+#define NUM_MISC_ERR_STATUS_COUNTERS 13
+#define NUM_SEND_PIO_ERR_STATUS_COUNTERS 36
+#define NUM_SEND_DMA_ERR_STATUS_COUNTERS 4
+#define NUM_SEND_EGRESS_ERR_STATUS_COUNTERS 64
+#define NUM_SEND_ERR_STATUS_COUNTERS 3
+#define NUM_SEND_CTXT_ERR_STATUS_COUNTERS 5
+#define NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS 24
+
+/*
  * per driver stats, either not device nor port-specific, or
  * summed over all of the devices and ports.
  * They are described by name via ipathfs filesystem, so layout
@@ -139,15 +159,6 @@ extern const struct pci_error_handlers hfi1_pci_err_handler;
 struct hfi1_opcode_stats_perctx;
 #endif
 
-/*
- * struct ps_state keeps state associated with RX queue "prescanning"
- * (prescanning for FECNs, and BECNs), if prescanning is in use.
- */
-struct ps_state {
-	u32 ps_head;
-	int initialized;
-};
-
 struct ctxt_eager_bufs {
 	ssize_t size;            /* total size of eager buffers */
 	u32 count;               /* size of buffers array */
@@ -243,7 +254,7 @@ struct hfi1_ctxtdata {
 	/* chip offset of PIO buffers for this ctxt */
 	u32 piobufs;
 	/* per-context configuration flags */
-	u16 flags;
+	u32 flags;
 	/* per-context event flags for fileops/intr communication */
 	unsigned long event_flags;
 	/* WAIT_RCV that timed out, no interrupt */
@@ -302,10 +313,6 @@ struct hfi1_ctxtdata {
 	struct list_head sdma_queues;
 	spinlock_t sdma_qlock;
 
-#ifdef CONFIG_PRESCAN_RXQ
-	struct ps_state ps_state;
-#endif /* CONFIG_PRESCAN_RXQ */
-
 	/*
 	 * The interrupt handler for a particular receive context can vary
 	 * throughout it's lifetime. This is not a lock protected data member so
@@ -706,6 +713,8 @@ struct hfi1_pportdata {
 	u64 link_downed;
 	/* number of times link retrained successfully */
 	u64 link_up;
+	/* number of times a link unknown frame was reported */
+	u64 unknown_frame_count;
 	/* port_ltp_crc_mode is returned in 'portinfo' MADs */
 	u16 port_ltp_crc_mode;
 	/* port_crc_mode_enabled is the crc we support */
@@ -1053,6 +1062,26 @@ struct hfi1_devdata {
 	atomic_t drop_packet;
 	u8 do_drop;
 
+	/*
+	 * Software counters for the status bits defined by the
+	 * associated error status registers
+	 */
+	u64 cce_err_status_cnt[NUM_CCE_ERR_STATUS_COUNTERS];
+	u64 rcv_err_status_cnt[NUM_RCV_ERR_STATUS_COUNTERS];
+	u64 misc_err_status_cnt[NUM_MISC_ERR_STATUS_COUNTERS];
+	u64 send_pio_err_status_cnt[NUM_SEND_PIO_ERR_STATUS_COUNTERS];
+	u64 send_dma_err_status_cnt[NUM_SEND_DMA_ERR_STATUS_COUNTERS];
+	u64 send_egress_err_status_cnt[NUM_SEND_EGRESS_ERR_STATUS_COUNTERS];
+	u64 send_err_status_cnt[NUM_SEND_ERR_STATUS_COUNTERS];
+
+	/* Software counter that spans all contexts */
+	u64 sw_ctxt_err_status_cnt[NUM_SEND_CTXT_ERR_STATUS_COUNTERS];
+	/* Software counter that spans all DMA engines */
+	u64 sw_send_dma_eng_err_status_cnt[
+		NUM_SEND_DMA_ENG_ERR_STATUS_COUNTERS];
+	/* Software counter that aggregates all cce_err_status errors */
+	u64 sw_cce_err_status_aggregate;
+
 	/* receive interrupt functions */
 	rhf_rcv_function_ptr *rhf_rcv_function_map;
 	rhf_rcv_function_ptr normal_rhf_rcv_functions[8];
@@ -1061,12 +1090,10 @@ struct hfi1_devdata {
 	 * Handlers for outgoing data so that snoop/capture does not
 	 * have to have its hooks in the send path
 	 */
-	int (*process_pio_send)(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
-				u32 hdrwords, struct hfi1_sge_state *ss,
-				u32 len, u32 plen, u32 dwords, u64 pbc);
-	int (*process_dma_send)(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
-				u32 hdrwords, struct hfi1_sge_state *ss,
-				u32 len, u32 plen, u32 dwords, u64 pbc);
+	int (*process_pio_send)(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+				u64 pbc);
+	int (*process_dma_send)(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+				u64 pbc);
 	void (*pio_inline_send)(struct hfi1_devdata *dd, struct pio_buf *pbuf,
 				u64 pbc, const void *from, size_t count);
 
@@ -1084,6 +1111,10 @@ struct hfi1_devdata {
 	/* Save the enabled LCB error bits */
 	u64 lcb_err_en;
 	u8 dc_shutdown;
+
+	/* receive context tail dummy address */
+	__le64 *rcvhdrtail_dummy_kvaddr;
+	dma_addr_t rcvhdrtail_dummy_physaddr;
 };
 
 /* 8051 firmware version helper */
@@ -1414,27 +1445,13 @@ void reset_link_credits(struct hfi1_devdata *dd);
 void assign_remote_cm_au_table(struct hfi1_devdata *dd, u8 vcu);
 
 int snoop_recv_handler(struct hfi1_packet *packet);
-int snoop_send_dma_handler(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
-			   u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			   u32 plen, u32 dwords, u64 pbc);
-int snoop_send_pio_handler(struct hfi1_qp *qp, struct ahg_ib_header *ibhdr,
-			   u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			   u32 plen, u32 dwords, u64 pbc);
+int snoop_send_dma_handler(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			   u64 pbc);
+int snoop_send_pio_handler(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			   u64 pbc);
 void snoop_inline_pio_send(struct hfi1_devdata *dd, struct pio_buf *pbuf,
 			   u64 pbc, const void *from, size_t count);
 
-/* for use in system calls, where we want to know device type, etc. */
-#define ctxt_fp(fp) \
-	(((struct hfi1_filedata *)(fp)->private_data)->uctxt)
-#define subctxt_fp(fp) \
-	(((struct hfi1_filedata *)(fp)->private_data)->subctxt)
-#define tidcursor_fp(fp) \
-	(((struct hfi1_filedata *)(fp)->private_data)->tidcursor)
-#define user_sdma_pkt_fp(fp) \
-	(((struct hfi1_filedata *)(fp)->private_data)->pq)
-#define user_sdma_comp_fp(fp) \
-	(((struct hfi1_filedata *)(fp)->private_data)->cq)
-
 static inline struct hfi1_devdata *dd_from_ppd(struct hfi1_pportdata *ppd)
 {
 	return ppd->dd;
@@ -1570,8 +1587,8 @@ void hfi1_set_led_override(struct hfi1_pportdata *ppd, unsigned int val);
  */
 #define DEFAULT_RCVHDR_ENTSIZE 32
 
-int hfi1_get_user_pages(unsigned long, size_t, struct page **);
-void hfi1_release_user_pages(struct page **, size_t);
+int hfi1_acquire_user_pages(unsigned long, size_t, bool, struct page **);
+void hfi1_release_user_pages(struct page **, size_t, bool);
 
 static inline void clear_rcvhdrtail(const struct hfi1_ctxtdata *rcd)
 {
@@ -1612,7 +1629,6 @@ void hfi1_pcie_flr(struct hfi1_devdata *);
 int pcie_speeds(struct hfi1_devdata *);
 void request_msix(struct hfi1_devdata *, u32 *, struct hfi1_msix_entry *);
 void hfi1_enable_intx(struct pci_dev *);
-void hfi1_nomsix(struct hfi1_devdata *);
 void restore_pci_variables(struct hfi1_devdata *dd);
 int do_pcie_gen3_transition(struct hfi1_devdata *dd);
 int parse_platform_config(struct hfi1_devdata *dd);
@@ -1649,7 +1665,7 @@ void update_sge(struct hfi1_sge_state *ss, u32 length);
 extern unsigned int hfi1_max_mtu;
 extern unsigned int hfi1_cu;
 extern unsigned int user_credit_return_threshold;
-extern uint num_rcv_contexts;
+extern int num_user_contexts;
 extern unsigned n_krcvqs;
 extern u8 krcvqs[];
 extern int krcvqsset;
@@ -1713,7 +1729,7 @@ static inline u64 hfi1_pkt_default_send_ctxt_mask(struct hfi1_devdata *dd,
 	else
 		base_sc_integrity |= HFI1_PKT_KERNEL_SC_INTEGRITY;
 
-	if (is_a0(dd))
+	if (is_ax(dd))
 		/* turn off send-side job key checks - A0 erratum */
 		return base_sc_integrity &
 		       ~SEND_CTXT_CHECK_ENABLE_CHECK_JOB_KEY_SMASK;
@@ -1740,7 +1756,7 @@ static inline u64 hfi1_pkt_base_sdma_integrity(struct hfi1_devdata *dd)
 	| SEND_DMA_CHECK_ENABLE_CHECK_VL_SMASK
 	| SEND_DMA_CHECK_ENABLE_CHECK_ENABLE_SMASK;
 
-	if (is_a0(dd))
+	if (is_ax(dd))
 		/* turn off send-side job key checks - A0 erratum */
 		return base_sdma_integrity &
 		       ~SEND_DMA_CHECK_ENABLE_CHECK_JOB_KEY_SMASK;
diff --git a/drivers/staging/rdma/hfi1/init.c b/drivers/staging/rdma/hfi1/init.c
index 8666f3ad24e9..4dd8051aba7e 100644
--- a/drivers/staging/rdma/hfi1/init.c
+++ b/drivers/staging/rdma/hfi1/init.c
@@ -60,6 +60,7 @@
 #include "hfi.h"
 #include "device.h"
 #include "common.h"
+#include "trace.h"
 #include "mad.h"
 #include "sdma.h"
 #include "debugfs.h"
@@ -81,15 +82,15 @@
  * Number of user receive contexts we are configured to use (to allow for more
  * pio buffers per ctxt, etc.)  Zero means use one user context per CPU.
  */
-uint num_rcv_contexts;
-module_param_named(num_rcv_contexts, num_rcv_contexts, uint, S_IRUGO);
+int num_user_contexts = -1;
+module_param_named(num_user_contexts, num_user_contexts, uint, S_IRUGO);
 MODULE_PARM_DESC(
-	num_rcv_contexts, "Set max number of user receive contexts to use");
+	num_user_contexts, "Set max number of user contexts to use");
 
 u8 krcvqs[RXE_NUM_DATA_VL];
 int krcvqsset;
 module_param_array(krcvqs, byte, &krcvqsset, S_IRUGO);
-MODULE_PARM_DESC(krcvqs, "Array of the number of kernel receive queues by VL");
+MODULE_PARM_DESC(krcvqs, "Array of the number of non-control kernel receive queues by VL");
 
 /* computed based on above array */
 unsigned n_krcvqs;
@@ -112,7 +113,7 @@ MODULE_PARM_DESC(hdrq_entsize, "Size of header queue entries: 2 - 8B, 16 - 64B (
 
 unsigned int user_credit_return_threshold = 33;	/* default is 33% */
 module_param(user_credit_return_threshold, uint, S_IRUGO);
-MODULE_PARM_DESC(user_credit_return_theshold, "Credit return threshold for user send contexts, return when unreturned credits passes this many blocks (in percent of allocated blocks, 0 is off)");
+MODULE_PARM_DESC(user_credit_return_threshold, "Credit return threshold for user send contexts, return when unreturned credits passes this many blocks (in percent of allocated blocks, 0 is off)");
 
 static inline u64 encode_rcv_header_entry_size(u16);
 
@@ -129,6 +130,9 @@ int hfi1_create_ctxts(struct hfi1_devdata *dd)
 	int ret;
 	int local_node_id = pcibus_to_node(dd->pcidev->bus);
 
+	/* Control context has to be always 0 */
+	BUILD_BUG_ON(HFI1_CTRL_CTXT != 0);
+
 	if (local_node_id < 0)
 		local_node_id = numa_node_id();
 	dd->assigned_node_id = local_node_id;
@@ -158,6 +162,10 @@ int hfi1_create_ctxts(struct hfi1_devdata *dd)
 			HFI1_CAP_KGET(NODROP_RHQ_FULL) |
 			HFI1_CAP_KGET(NODROP_EGR_FULL) |
 			HFI1_CAP_KGET(DMA_RTAIL);
+
+		/* Control context must use DMA_RTAIL */
+		if (rcd->ctxt == HFI1_CTRL_CTXT)
+			rcd->flags |= HFI1_CAP_DMA_RTAIL;
 		rcd->seq_cnt = 1;
 
 		rcd->sc = sc_alloc(dd, SC_ACK, rcd->rcvhdrqentsize, dd->node);
@@ -208,7 +216,7 @@ struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, u32 ctxt)
 	if (rcd) {
 		u32 rcvtids, max_entries;
 
-		dd_dev_info(dd, "%s: setting up context %u\n", __func__, ctxt);
+		hfi1_cdbg(PROC, "setting up context %u\n", ctxt);
 
 		INIT_LIST_HEAD(&rcd->qp_wait_list);
 		rcd->ppd = ppd;
@@ -279,8 +287,9 @@ struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, u32 ctxt)
 				   rcd->ctxt);
 			rcd->egrbufs.count = MAX_EAGER_ENTRIES;
 		}
-		dd_dev_info(dd, "ctxt%u: max Eager buffer RcvArray entries: %u\n",
-			    rcd->ctxt, rcd->egrbufs.count);
+		hfi1_cdbg(PROC,
+			  "ctxt%u: max Eager buffer RcvArray entries: %u\n",
+			  rcd->ctxt, rcd->egrbufs.count);
 
 		/*
 		 * Allocate array that will hold the eager buffer accounting
@@ -308,8 +317,8 @@ struct hfi1_ctxtdata *hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, u32 ctxt)
 		 */
 		if (rcd->egrbufs.size < hfi1_max_mtu) {
 			rcd->egrbufs.size = __roundup_pow_of_two(hfi1_max_mtu);
-			dd_dev_info(dd,
-				    "ctxt%u: eager bufs size too small. Adjusting to %zu\n",
+			hfi1_cdbg(PROC,
+				  "ctxt%u: eager bufs size too small. Adjusting to %zu\n",
 				    rcd->ctxt, rcd->egrbufs.size);
 		}
 		rcd->egrbufs.rcvtid_size = HFI1_MAX_EAGER_BUFFER_SIZE;
@@ -601,20 +610,19 @@ static int create_workqueues(struct hfi1_devdata *dd)
 	for (pidx = 0; pidx < dd->num_pports; ++pidx) {
 		ppd = dd->pport + pidx;
 		if (!ppd->hfi1_wq) {
-			char wq_name[8]; /* 3 + 2 + 1 + 1 + 1 */
-
-			snprintf(wq_name, sizeof(wq_name), "hfi%d_%d",
-				 dd->unit, pidx);
 			ppd->hfi1_wq =
-				create_singlethread_workqueue(wq_name);
+				alloc_workqueue(
+				    "hfi%d_%d",
+				    WQ_SYSFS | WQ_HIGHPRI | WQ_CPU_INTENSIVE,
+				    dd->num_sdma,
+				    dd->unit, pidx);
 			if (!ppd->hfi1_wq)
 				goto wq_error;
 		}
 	}
 	return 0;
 wq_error:
-	pr_err("create_singlethread_workqueue failed for port %d\n",
-		pidx + 1);
+	pr_err("alloc_workqueue failed for port %d\n", pidx + 1);
 	for (pidx = 0; pidx < dd->num_pports; ++pidx) {
 		ppd = dd->pport + pidx;
 		if (ppd->hfi1_wq) {
@@ -670,7 +678,7 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit)
 	dd->process_dma_send = hfi1_verbs_send_dma;
 	dd->pio_inline_send = pio_copy;
 
-	if (is_a0(dd)) {
+	if (is_ax(dd)) {
 		atomic_set(&dd->drop_packet, DROP_PACKET_ON);
 		dd->do_drop = 1;
 	} else {
@@ -691,6 +699,18 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit)
 	if (ret)
 		goto done;
 
+	/* allocate dummy tail memory for all receive contexts */
+	dd->rcvhdrtail_dummy_kvaddr = dma_zalloc_coherent(
+		&dd->pcidev->dev, sizeof(u64),
+		&dd->rcvhdrtail_dummy_physaddr,
+		GFP_KERNEL);
+
+	if (!dd->rcvhdrtail_dummy_kvaddr) {
+		dd_dev_err(dd, "cannot allocate dummy tail memory\n");
+		ret = -ENOMEM;
+		goto done;
+	}
+
 	/* dd->rcd can be NULL if early initialization failed */
 	for (i = 0; dd->rcd && i < dd->first_user_ctxt; ++i) {
 		/*
@@ -1266,6 +1286,14 @@ static void cleanup_device_data(struct hfi1_devdata *dd)
 	tmp = dd->rcd;
 	dd->rcd = NULL;
 	spin_unlock_irqrestore(&dd->uctxt_lock, flags);
+
+	if (dd->rcvhdrtail_dummy_kvaddr) {
+		dma_free_coherent(&dd->pcidev->dev, sizeof(u64),
+				  (void *)dd->rcvhdrtail_dummy_kvaddr,
+				  dd->rcvhdrtail_dummy_physaddr);
+				  dd->rcvhdrtail_dummy_kvaddr = NULL;
+	}
+
 	for (ctxt = 0; tmp && ctxt < dd->num_rcv_contexts; ctxt++) {
 		struct hfi1_ctxtdata *rcd = tmp[ctxt];
 
@@ -1308,6 +1336,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	int ret = 0, j, pidx, initfail;
 	struct hfi1_devdata *dd = NULL;
+	struct hfi1_pportdata *ppd;
 
 	/* First, lock the non-writable module parameters */
 	HFI1_CAP_LOCK();
@@ -1322,6 +1351,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (!encode_rcv_header_entry_size(hfi1_hdrq_entsize)) {
 		hfi1_early_err(&pdev->dev, "Invalid HdrQ Entry size %u\n",
 			       hfi1_hdrq_entsize);
+		ret = -EINVAL;
 		goto bail;
 	}
 
@@ -1403,8 +1433,14 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (initfail || ret) {
 		stop_timers(dd);
 		flush_workqueue(ib_wq);
-		for (pidx = 0; pidx < dd->num_pports; ++pidx)
+		for (pidx = 0; pidx < dd->num_pports; ++pidx) {
 			hfi1_quiet_serdes(dd->pport + pidx);
+			ppd = dd->pport + pidx;
+			if (ppd->hfi1_wq) {
+				destroy_workqueue(ppd->hfi1_wq);
+				ppd->hfi1_wq = NULL;
+			}
+		}
 		if (!j)
 			hfi1_device_remove(dd);
 		if (!ret)
@@ -1521,6 +1557,14 @@ int hfi1_create_rcvhdrq(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd)
 	reg = (dd->rcvhdrsize & RCV_HDR_SIZE_HDR_SIZE_MASK)
 		<< RCV_HDR_SIZE_HDR_SIZE_SHIFT;
 	write_kctxt_csr(dd, rcd->ctxt, RCV_HDR_SIZE, reg);
+
+	/*
+	 * Program dummy tail address for every receive context
+	 * before enabling any receive context
+	 */
+	write_kctxt_csr(dd, rcd->ctxt, RCV_HDR_TAIL_ADDR,
+			dd->rcvhdrtail_dummy_physaddr);
+
 	return 0;
 
 bail_free:
@@ -1660,9 +1704,11 @@ int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *rcd)
 	rcd->egrbufs.numbufs = idx;
 	rcd->egrbufs.size = alloced_bytes;
 
-	dd_dev_info(dd, "ctxt%u: Alloced %u rcv tid entries @ %uKB, total %zuKB\n",
-		rcd->ctxt, rcd->egrbufs.alloced, rcd->egrbufs.rcvtid_size,
-		rcd->egrbufs.size);
+	hfi1_cdbg(PROC,
+		  "ctxt%u: Alloced %u rcv tid entries @ %uKB, total %zuKB\n",
+		  rcd->ctxt, rcd->egrbufs.alloced, rcd->egrbufs.rcvtid_size,
+		  rcd->egrbufs.size);
+
 
 	/*
 	 * Set the contexts rcv array head update threshold to the closest
@@ -1683,13 +1729,14 @@ int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *rcd)
 		rcd->expected_count = MAX_TID_PAIR_ENTRIES * 2;
 
 	rcd->expected_base = rcd->eager_base + egrtop;
-	dd_dev_info(dd, "ctxt%u: eager:%u, exp:%u, egrbase:%u, expbase:%u\n",
-		    rcd->ctxt, rcd->egrbufs.alloced, rcd->expected_count,
-		    rcd->eager_base, rcd->expected_base);
+	hfi1_cdbg(PROC, "ctxt%u: eager:%u, exp:%u, egrbase:%u, expbase:%u\n",
+		  rcd->ctxt, rcd->egrbufs.alloced, rcd->expected_count,
+		  rcd->eager_base, rcd->expected_base);
 
 	if (!hfi1_rcvbuf_validate(rcd->egrbufs.rcvtid_size, PT_EAGER, &order)) {
-		dd_dev_err(dd, "ctxt%u: current Eager buffer size is invalid %u\n",
-			   rcd->ctxt, rcd->egrbufs.rcvtid_size);
+		hfi1_cdbg(PROC,
+			  "ctxt%u: current Eager buffer size is invalid %u\n",
+			  rcd->ctxt, rcd->egrbufs.rcvtid_size);
 		ret = -EINVAL;
 		goto bail;
 	}
diff --git a/drivers/staging/rdma/hfi1/iowait.h b/drivers/staging/rdma/hfi1/iowait.h
index fa361b405851..e8ba5606d08d 100644
--- a/drivers/staging/rdma/hfi1/iowait.h
+++ b/drivers/staging/rdma/hfi1/iowait.h
@@ -150,12 +150,14 @@ static inline void iowait_init(
  * iowait_schedule() - initialize wait structure
  * @wait: wait struct to schedule
  * @wq: workqueue for schedule
+ * @cpu: cpu
  */
 static inline void iowait_schedule(
 	struct iowait *wait,
-	struct workqueue_struct *wq)
+	struct workqueue_struct *wq,
+	int cpu)
 {
-	queue_work(wq, &wait->iowork);
+	queue_work_on(cpu, wq, &wait->iowork);
 }
 
 /**
diff --git a/drivers/staging/rdma/hfi1/mad.c b/drivers/staging/rdma/hfi1/mad.c
index 32f703736185..4f5dbd14b5de 100644
--- a/drivers/staging/rdma/hfi1/mad.c
+++ b/drivers/staging/rdma/hfi1/mad.c
@@ -84,7 +84,7 @@ static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
 {
 	struct ib_mad_send_buf *send_buf;
 	struct ib_mad_agent *agent;
-	struct ib_smp *smp;
+	struct opa_smp *smp;
 	int ret;
 	unsigned long flags;
 	unsigned long timeout;
@@ -117,15 +117,15 @@ static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
 		return;
 
 	smp = send_buf->mad;
-	smp->base_version = IB_MGMT_BASE_VERSION;
+	smp->base_version = OPA_MGMT_BASE_VERSION;
 	smp->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
-	smp->class_version = 1;
+	smp->class_version = OPA_SMI_CLASS_VERSION;
 	smp->method = IB_MGMT_METHOD_TRAP;
 	ibp->tid++;
 	smp->tid = cpu_to_be64(ibp->tid);
 	smp->attr_id = IB_SMP_ATTR_NOTICE;
 	/* o14-1: smp->mkey = 0; */
-	memcpy(smp->data, data, len);
+	memcpy(smp->route.lid.data, data, len);
 
 	spin_lock_irqsave(&ibp->lock, flags);
 	if (!ibp->sm_ah) {
@@ -164,11 +164,16 @@ static void send_trap(struct hfi1_ibport *ibp, void *data, unsigned len)
  * Send a bad [PQ]_Key trap (ch. 14.3.8).
  */
 void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
-		    u32 qp1, u32 qp2, __be16 lid1, __be16 lid2)
+		    u32 qp1, u32 qp2, u16 lid1, u16 lid2)
 {
-	struct ib_mad_notice_attr data;
+	struct opa_mad_notice_attr data;
+	u32 lid = ppd_from_ibp(ibp)->lid;
+	u32 _lid1 = lid1;
+	u32 _lid2 = lid2;
 
-	if (trap_num == IB_NOTICE_TRAP_BAD_PKEY)
+	memset(&data, 0, sizeof(data));
+
+	if (trap_num == OPA_TRAP_BAD_P_KEY)
 		ibp->pkey_violations++;
 	else
 		ibp->qkey_violations++;
@@ -176,17 +181,15 @@ void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
 
 	/* Send violation trap */
 	data.generic_type = IB_NOTICE_TYPE_SECURITY;
-	data.prod_type_msb = 0;
 	data.prod_type_lsb = IB_NOTICE_PROD_CA;
 	data.trap_num = trap_num;
-	data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
-	data.toggle_count = 0;
-	memset(&data.details, 0, sizeof(data.details));
-	data.details.ntc_257_258.lid1 = lid1;
-	data.details.ntc_257_258.lid2 = lid2;
-	data.details.ntc_257_258.key = cpu_to_be32(key);
-	data.details.ntc_257_258.sl_qp1 = cpu_to_be32((sl << 28) | qp1);
-	data.details.ntc_257_258.qp2 = cpu_to_be32(qp2);
+	data.issuer_lid = cpu_to_be32(lid);
+	data.ntc_257_258.lid1 = cpu_to_be32(_lid1);
+	data.ntc_257_258.lid2 = cpu_to_be32(_lid2);
+	data.ntc_257_258.key = cpu_to_be32(key);
+	data.ntc_257_258.sl = sl << 3;
+	data.ntc_257_258.qp1 = cpu_to_be32(qp1);
+	data.ntc_257_258.qp2 = cpu_to_be32(qp2);
 
 	send_trap(ibp, &data, sizeof(data));
 }
@@ -197,32 +200,30 @@ void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
 static void bad_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
 		     __be64 mkey, __be32 dr_slid, u8 return_path[], u8 hop_cnt)
 {
-	struct ib_mad_notice_attr data;
+	struct opa_mad_notice_attr data;
+	u32 lid = ppd_from_ibp(ibp)->lid;
 
+	memset(&data, 0, sizeof(data));
 	/* Send violation trap */
 	data.generic_type = IB_NOTICE_TYPE_SECURITY;
-	data.prod_type_msb = 0;
 	data.prod_type_lsb = IB_NOTICE_PROD_CA;
-	data.trap_num = IB_NOTICE_TRAP_BAD_MKEY;
-	data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
-	data.toggle_count = 0;
-	memset(&data.details, 0, sizeof(data.details));
-	data.details.ntc_256.lid = data.issuer_lid;
-	data.details.ntc_256.method = mad->method;
-	data.details.ntc_256.attr_id = mad->attr_id;
-	data.details.ntc_256.attr_mod = mad->attr_mod;
-	data.details.ntc_256.mkey = mkey;
+	data.trap_num = OPA_TRAP_BAD_M_KEY;
+	data.issuer_lid = cpu_to_be32(lid);
+	data.ntc_256.lid = data.issuer_lid;
+	data.ntc_256.method = mad->method;
+	data.ntc_256.attr_id = mad->attr_id;
+	data.ntc_256.attr_mod = mad->attr_mod;
+	data.ntc_256.mkey = mkey;
 	if (mad->mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
-
-		data.details.ntc_256.dr_slid = (__force __be16)dr_slid;
-		data.details.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE;
-		if (hop_cnt > ARRAY_SIZE(data.details.ntc_256.dr_rtn_path)) {
-			data.details.ntc_256.dr_trunc_hop |=
+		data.ntc_256.dr_slid = dr_slid;
+		data.ntc_256.dr_trunc_hop = IB_NOTICE_TRAP_DR_NOTICE;
+		if (hop_cnt > ARRAY_SIZE(data.ntc_256.dr_rtn_path)) {
+			data.ntc_256.dr_trunc_hop |=
 				IB_NOTICE_TRAP_DR_TRUNC;
-			hop_cnt = ARRAY_SIZE(data.details.ntc_256.dr_rtn_path);
+			hop_cnt = ARRAY_SIZE(data.ntc_256.dr_rtn_path);
 		}
-		data.details.ntc_256.dr_trunc_hop |= hop_cnt;
-		memcpy(data.details.ntc_256.dr_rtn_path, return_path,
+		data.ntc_256.dr_trunc_hop |= hop_cnt;
+		memcpy(data.ntc_256.dr_rtn_path, return_path,
 		       hop_cnt);
 	}
 
@@ -234,17 +235,17 @@ static void bad_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
  */
 void hfi1_cap_mask_chg(struct hfi1_ibport *ibp)
 {
-	struct ib_mad_notice_attr data;
+	struct opa_mad_notice_attr data;
+	u32 lid = ppd_from_ibp(ibp)->lid;
+
+	memset(&data, 0, sizeof(data));
 
 	data.generic_type = IB_NOTICE_TYPE_INFO;
-	data.prod_type_msb = 0;
 	data.prod_type_lsb = IB_NOTICE_PROD_CA;
-	data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
-	data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
-	data.toggle_count = 0;
-	memset(&data.details, 0, sizeof(data.details));
-	data.details.ntc_144.lid = data.issuer_lid;
-	data.details.ntc_144.new_cap_mask = cpu_to_be32(ibp->port_cap_flags);
+	data.trap_num = OPA_TRAP_CHANGE_CAPABILITY;
+	data.issuer_lid = cpu_to_be32(lid);
+	data.ntc_144.lid = data.issuer_lid;
+	data.ntc_144.new_cap_mask = cpu_to_be32(ibp->port_cap_flags);
 
 	send_trap(ibp, &data, sizeof(data));
 }
@@ -254,17 +255,17 @@ void hfi1_cap_mask_chg(struct hfi1_ibport *ibp)
  */
 void hfi1_sys_guid_chg(struct hfi1_ibport *ibp)
 {
-	struct ib_mad_notice_attr data;
+	struct opa_mad_notice_attr data;
+	u32 lid = ppd_from_ibp(ibp)->lid;
+
+	memset(&data, 0, sizeof(data));
 
 	data.generic_type = IB_NOTICE_TYPE_INFO;
-	data.prod_type_msb = 0;
 	data.prod_type_lsb = IB_NOTICE_PROD_CA;
-	data.trap_num = IB_NOTICE_TRAP_SYS_GUID_CHG;
-	data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
-	data.toggle_count = 0;
-	memset(&data.details, 0, sizeof(data.details));
-	data.details.ntc_145.lid = data.issuer_lid;
-	data.details.ntc_145.new_sys_guid = ib_hfi1_sys_image_guid;
+	data.trap_num = OPA_TRAP_CHANGE_SYSGUID;
+	data.issuer_lid = cpu_to_be32(lid);
+	data.ntc_145.new_sys_guid = ib_hfi1_sys_image_guid;
+	data.ntc_145.lid = data.issuer_lid;
 
 	send_trap(ibp, &data, sizeof(data));
 }
@@ -274,18 +275,18 @@ void hfi1_sys_guid_chg(struct hfi1_ibport *ibp)
  */
 void hfi1_node_desc_chg(struct hfi1_ibport *ibp)
 {
-	struct ib_mad_notice_attr data;
+	struct opa_mad_notice_attr data;
+	u32 lid = ppd_from_ibp(ibp)->lid;
+
+	memset(&data, 0, sizeof(data));
 
 	data.generic_type = IB_NOTICE_TYPE_INFO;
-	data.prod_type_msb = 0;
 	data.prod_type_lsb = IB_NOTICE_PROD_CA;
-	data.trap_num = IB_NOTICE_TRAP_CAP_MASK_CHG;
-	data.issuer_lid = cpu_to_be16(ppd_from_ibp(ibp)->lid);
-	data.toggle_count = 0;
-	memset(&data.details, 0, sizeof(data.details));
-	data.details.ntc_144.lid = data.issuer_lid;
-	data.details.ntc_144.local_changes = 1;
-	data.details.ntc_144.change_flags = IB_NOTICE_TRAP_NODE_DESC_CHG;
+	data.trap_num = OPA_TRAP_CHANGE_CAPABILITY;
+	data.issuer_lid = cpu_to_be32(lid);
+	data.ntc_144.lid = data.issuer_lid;
+	data.ntc_144.change_flags =
+		cpu_to_be16(OPA_NOTICE_TRAP_NODE_DESC_CHG);
 
 	send_trap(ibp, &data, sizeof(data));
 }
@@ -2076,13 +2077,20 @@ struct opa_aggregate {
 	u8 data[0];
 };
 
-/* Request contains first two fields, response contains those plus the rest */
+#define MSK_LLI 0x000000f0
+#define MSK_LLI_SFT 4
+#define MSK_LER 0x0000000f
+#define MSK_LER_SFT 0
+#define ADD_LLI 8
+#define ADD_LER 2
+
+/* Request contains first three fields, response contains those plus the rest */
 struct opa_port_data_counters_msg {
 	__be64 port_select_mask[4];
 	__be32 vl_select_mask;
+	__be32 resolution;
 
 	/* Response fields follow */
-	__be32 reserved1;
 	struct _port_dctrs {
 		u8 port_number;
 		u8 reserved2[3];
@@ -2271,34 +2279,8 @@ static void a0_portstatus(struct hfi1_pportdata *ppd,
 {
 	if (!is_bx(ppd->dd)) {
 		unsigned long vl;
-		int vfi = 0;
 		u64 max_vl_xmit_wait = 0, tmp;
 		u32 vl_all_mask = VL_MASK_ALL;
-		u64 rcv_data, rcv_bubble;
-
-		rcv_data = be64_to_cpu(rsp->port_rcv_data);
-		rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
-		/* In the measured time period, calculate the total number
-		 * of flits that were received. Subtract out one false
-		 * rcv_bubble increment for every 32 received flits but
-		 * don't let the number go negative.
-		 */
-		if (rcv_bubble >= (rcv_data>>5)) {
-			rcv_bubble -= (rcv_data>>5);
-			rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
-		}
-		for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
-				 8 * sizeof(vl_select_mask)) {
-			rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
-			rcv_bubble =
-				be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
-			if (rcv_bubble >= (rcv_data>>5)) {
-				rcv_bubble -= (rcv_data>>5);
-				rsp->vls[vfi].port_vl_rcv_bubble =
-							cpu_to_be64(rcv_bubble);
-			}
-			vfi++;
-		}
 
 		for_each_set_bit(vl, (unsigned long *)&(vl_all_mask),
 				 8 * sizeof(vl_all_mask)) {
@@ -2363,8 +2345,6 @@ static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
 					  CNTR_INVALID_VL));
 	rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
 					 CNTR_INVALID_VL));
-	rsp->port_rcv_bubble =
-		cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
 	rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
 					  CNTR_INVALID_VL));
 	rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
@@ -2434,9 +2414,6 @@ static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
 
 		tmp = read_dev_cntr(dd, C_DC_RX_FLIT_VL, idx_from_vl(vl));
 		rsp->vls[vfi].port_vl_rcv_data = cpu_to_be64(tmp);
-		rsp->vls[vfi].port_vl_rcv_bubble =
-			cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
-					idx_from_vl(vl)));
 
 		rsp->vls[vfi].port_vl_rcv_pkts =
 			cpu_to_be64(read_dev_cntr(dd, C_DC_RX_PKT_VL,
@@ -2474,7 +2451,8 @@ static int pma_get_opa_portstatus(struct opa_pma_mad *pmp,
 	return reply((struct ib_mad_hdr *)pmp);
 }
 
-static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port)
+static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port,
+				     u8 res_lli, u8 res_ler)
 {
 	struct hfi1_devdata *dd = dd_from_ibdev(ibdev);
 	struct hfi1_ibport *ibp = to_iport(ibdev, port);
@@ -2490,14 +2468,14 @@ static u64 get_error_counter_summary(struct ib_device *ibdev, u8 port)
 						CNTR_INVALID_VL);
 	error_counter_summary += read_dev_cntr(dd, C_DC_RMT_PHY_ERR,
 						CNTR_INVALID_VL);
-	error_counter_summary += read_dev_cntr(dd, C_DC_TX_REPLAY,
-						CNTR_INVALID_VL);
-	error_counter_summary += read_dev_cntr(dd, C_DC_RX_REPLAY,
-						CNTR_INVALID_VL);
-	error_counter_summary += read_dev_cntr(dd, C_DC_SEQ_CRC_CNT,
-						CNTR_INVALID_VL);
-	error_counter_summary += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT,
-						CNTR_INVALID_VL);
+	/* local link integrity must be right-shifted by the lli resolution */
+	tmp = read_dev_cntr(dd, C_DC_RX_REPLAY, CNTR_INVALID_VL);
+	tmp += read_dev_cntr(dd, C_DC_TX_REPLAY, CNTR_INVALID_VL);
+	error_counter_summary += (tmp >> res_lli);
+	/* link error recovery must b right-shifted by the ler resolution */
+	tmp = read_dev_cntr(dd, C_DC_SEQ_CRC_CNT, CNTR_INVALID_VL);
+	tmp += read_dev_cntr(dd, C_DC_REINIT_FROM_PEER_CNT, CNTR_INVALID_VL);
+	error_counter_summary += (tmp >> res_ler);
 	error_counter_summary += read_dev_cntr(dd, C_DC_RCV_ERR,
 						CNTR_INVALID_VL);
 	error_counter_summary += read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL);
@@ -2519,32 +2497,8 @@ static void a0_datacounters(struct hfi1_devdata *dd, struct _port_dctrs *rsp,
 	if (!is_bx(dd)) {
 		unsigned long vl;
 		int vfi = 0;
-		u64 rcv_data, rcv_bubble, sum_vl_xmit_wait = 0;
-
-		rcv_data = be64_to_cpu(rsp->port_rcv_data);
-		rcv_bubble = be64_to_cpu(rsp->port_rcv_bubble);
-		/* In the measured time period, calculate the total number
-		 * of flits that were received. Subtract out one false
-		 * rcv_bubble increment for every 32 received flits but
-		 * don't let the number go negative.
-		 */
-		if (rcv_bubble >= (rcv_data>>5)) {
-			rcv_bubble -= (rcv_data>>5);
-			rsp->port_rcv_bubble = cpu_to_be64(rcv_bubble);
-		}
-		for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
-				8 * sizeof(vl_select_mask)) {
-			rcv_data = be64_to_cpu(rsp->vls[vfi].port_vl_rcv_data);
-			rcv_bubble =
-				be64_to_cpu(rsp->vls[vfi].port_vl_rcv_bubble);
-			if (rcv_bubble >= (rcv_data>>5)) {
-				rcv_bubble -= (rcv_data>>5);
-				rsp->vls[vfi].port_vl_rcv_bubble =
-							cpu_to_be64(rcv_bubble);
-			}
-			vfi++;
-		}
-		vfi = 0;
+		u64 sum_vl_xmit_wait = 0;
+
 		for_each_set_bit(vl, (unsigned long *)&(vl_select_mask),
 				8 * sizeof(vl_select_mask)) {
 			u64 tmp = sum_vl_xmit_wait +
@@ -2575,6 +2529,7 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
 	u32 num_ports;
 	u8 num_pslm;
 	u8 lq, num_vls;
+	u8 res_lli, res_ler;
 	u64 port_mask;
 	unsigned long port_num;
 	unsigned long vl;
@@ -2585,6 +2540,10 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
 	num_pslm = hweight64(be64_to_cpu(req->port_select_mask[3]));
 	num_vls = hweight32(be32_to_cpu(req->vl_select_mask));
 	vl_select_mask = be32_to_cpu(req->vl_select_mask);
+	res_lli = (u8)(be32_to_cpu(req->resolution) & MSK_LLI) >> MSK_LLI_SFT;
+	res_lli = res_lli ? res_lli + ADD_LLI : 0;
+	res_ler = (u8)(be32_to_cpu(req->resolution) & MSK_LER) >> MSK_LER_SFT;
+	res_ler = res_ler ? res_ler + ADD_LER : 0;
 
 	if (num_ports != 1 || (vl_select_mask & ~VL_MASK_ALL)) {
 		pmp->mad_hdr.status |= IB_SMP_INVALID_FIELD;
@@ -2635,8 +2594,6 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
 						CNTR_INVALID_VL));
 	rsp->port_rcv_data = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_FLITS,
 						CNTR_INVALID_VL));
-	rsp->port_rcv_bubble =
-		cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL));
 	rsp->port_xmit_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_XMIT_PKTS,
 						CNTR_INVALID_VL));
 	rsp->port_rcv_pkts = cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_PKTS,
@@ -2655,7 +2612,8 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
 		cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BCN, CNTR_INVALID_VL));
 
 	rsp->port_error_counter_summary =
-		cpu_to_be64(get_error_counter_summary(ibdev, port));
+		cpu_to_be64(get_error_counter_summary(ibdev, port,
+						      res_lli, res_ler));
 
 	vlinfo = &(rsp->vls[0]);
 	vfi = 0;
@@ -2675,9 +2633,6 @@ static int pma_get_opa_datacounters(struct opa_pma_mad *pmp,
 		rsp->vls[vfi].port_vl_rcv_data =
 			cpu_to_be64(read_dev_cntr(dd, C_DC_RX_FLIT_VL,
 							idx_from_vl(vl)));
-		rsp->vls[vfi].port_vl_rcv_bubble =
-			cpu_to_be64(read_dev_cntr(dd, C_DC_RCV_BBL_VL,
-					idx_from_vl(vl)));
 
 		rsp->vls[vfi].port_vl_xmit_pkts =
 			cpu_to_be64(read_port_cntr(ppd, C_TX_PKT_VL,
@@ -3458,7 +3413,7 @@ static int __subn_get_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
 	u32 nport = OPA_AM_NPORT(am);
 	u64 reg;
 
-	if (nport != 1 || OPA_AM_PORTNUM(am)) {
+	if (nport != 1) {
 		smp->status |= IB_SMP_INVALID_FIELD;
 		return reply((struct ib_mad_hdr *)smp);
 	}
@@ -3483,7 +3438,7 @@ static int __subn_set_opa_led_info(struct opa_smp *smp, u32 am, u8 *data,
 	u32 nport = OPA_AM_NPORT(am);
 	int on = !!(be32_to_cpu(p->rsvd_led_mask) & OPA_LED_MASK);
 
-	if (nport != 1 || OPA_AM_PORTNUM(am)) {
+	if (nport != 1) {
 		smp->status |= IB_SMP_INVALID_FIELD;
 		return reply((struct ib_mad_hdr *)smp);
 	}
diff --git a/drivers/staging/rdma/hfi1/mad.h b/drivers/staging/rdma/hfi1/mad.h
index 47457501c044..f0317750e2fc 100644
--- a/drivers/staging/rdma/hfi1/mad.h
+++ b/drivers/staging/rdma/hfi1/mad.h
@@ -60,7 +60,121 @@
 #endif
 #include "opa_compat.h"
 
+/*
+ * OPA Traps
+ */
+#define OPA_TRAP_GID_NOW_IN_SERVICE             cpu_to_be16(64)
+#define OPA_TRAP_GID_OUT_OF_SERVICE             cpu_to_be16(65)
+#define OPA_TRAP_ADD_MULTICAST_GROUP            cpu_to_be16(66)
+#define OPA_TRAL_DEL_MULTICAST_GROUP            cpu_to_be16(67)
+#define OPA_TRAP_UNPATH                         cpu_to_be16(68)
+#define OPA_TRAP_REPATH                         cpu_to_be16(69)
+#define OPA_TRAP_PORT_CHANGE_STATE              cpu_to_be16(128)
+#define OPA_TRAP_LINK_INTEGRITY                 cpu_to_be16(129)
+#define OPA_TRAP_EXCESSIVE_BUFFER_OVERRUN       cpu_to_be16(130)
+#define OPA_TRAP_FLOW_WATCHDOG                  cpu_to_be16(131)
+#define OPA_TRAP_CHANGE_CAPABILITY              cpu_to_be16(144)
+#define OPA_TRAP_CHANGE_SYSGUID                 cpu_to_be16(145)
+#define OPA_TRAP_BAD_M_KEY                      cpu_to_be16(256)
+#define OPA_TRAP_BAD_P_KEY                      cpu_to_be16(257)
+#define OPA_TRAP_BAD_Q_KEY                      cpu_to_be16(258)
+#define OPA_TRAP_SWITCH_BAD_PKEY                cpu_to_be16(259)
+#define OPA_SMA_TRAP_DATA_LINK_WIDTH            cpu_to_be16(2048)
 
+/*
+ * Generic trap/notice other local changes flags (trap 144).
+ */
+#define	OPA_NOTICE_TRAP_LWDE_CHG        0x08 /* Link Width Downgrade Enable
+					      * changed
+					      */
+#define OPA_NOTICE_TRAP_LSE_CHG         0x04 /* Link Speed Enable changed */
+#define OPA_NOTICE_TRAP_LWE_CHG         0x02 /* Link Width Enable changed */
+#define OPA_NOTICE_TRAP_NODE_DESC_CHG   0x01
+
+struct opa_mad_notice_attr {
+	u8 generic_type;
+	u8 prod_type_msb;
+	__be16 prod_type_lsb;
+	__be16 trap_num;
+	__be16 toggle_count;
+	__be32 issuer_lid;
+	__be32 reserved1;
+	union ib_gid issuer_gid;
+
+	union {
+		struct {
+			u8	details[64];
+		} raw_data;
+
+		struct {
+			union ib_gid	gid;
+		} __packed ntc_64_65_66_67;
+
+		struct {
+			__be32	lid;
+		} __packed ntc_128;
+
+		struct {
+			__be32	lid;		/* where violation happened */
+			u8	port_num;	/* where violation happened */
+		} __packed ntc_129_130_131;
+
+		struct {
+			__be32	lid;		/* LID where change occurred */
+			__be32	new_cap_mask;	/* new capability mask */
+			__be16	reserved2;
+			__be16	cap_mask;
+			__be16	change_flags;	/* low 4 bits only */
+		} __packed ntc_144;
+
+		struct {
+			__be64	new_sys_guid;
+			__be32	lid;		/* lid where sys guid changed */
+		} __packed ntc_145;
+
+		struct {
+			__be32	lid;
+			__be32	dr_slid;
+			u8	method;
+			u8	dr_trunc_hop;
+			__be16	attr_id;
+			__be32	attr_mod;
+			__be64	mkey;
+			u8	dr_rtn_path[30];
+		} __packed ntc_256;
+
+		struct {
+			__be32		lid1;
+			__be32		lid2;
+			__be32		key;
+			u8		sl;	/* SL: high 5 bits */
+			u8		reserved3[3];
+			union ib_gid	gid1;
+			union ib_gid	gid2;
+			__be32		qp1;	/* high 8 bits reserved */
+			__be32		qp2;	/* high 8 bits reserved */
+		} __packed ntc_257_258;
+
+		struct {
+			__be16		flags;	/* low 8 bits reserved */
+			__be16		pkey;
+			__be32		lid1;
+			__be32		lid2;
+			u8		sl;	/* SL: high 5 bits */
+			u8		reserved4[3];
+			union ib_gid	gid1;
+			union ib_gid	gid2;
+			__be32		qp1;	/* high 8 bits reserved */
+			__be32		qp2;	/* high 8 bits reserved */
+		} __packed ntc_259;
+
+		struct {
+			__be32	lid;
+		} __packed ntc_2048;
+
+	};
+	u8	class_data[0];
+};
 
 #define IB_VLARB_LOWPRI_0_31    1
 #define IB_VLARB_LOWPRI_32_63   2
diff --git a/drivers/staging/rdma/hfi1/pcie.c b/drivers/staging/rdma/hfi1/pcie.c
index a956044459a2..8317b07d722a 100644
--- a/drivers/staging/rdma/hfi1/pcie.c
+++ b/drivers/staging/rdma/hfi1/pcie.c
@@ -426,14 +426,6 @@ void request_msix(struct hfi1_devdata *dd, u32 *nent,
 	tune_pcie_caps(dd);
 }
 
-/*
- * Disable MSI-X.
- */
-void hfi1_nomsix(struct hfi1_devdata *dd)
-{
-	pci_disable_msix(dd->pcidev);
-}
-
 void hfi1_enable_intx(struct pci_dev *pdev)
 {
 	/* first, turn on INTx */
@@ -475,8 +467,18 @@ static void tune_pcie_caps(struct hfi1_devdata *dd)
 {
 	struct pci_dev *parent;
 	u16 rc_mpss, rc_mps, ep_mpss, ep_mps;
-	u16 rc_mrrs, ep_mrrs, max_mrrs;
+	u16 rc_mrrs, ep_mrrs, max_mrrs, ectl;
 
+	/*
+	 * Turn on extended tags in DevCtl in case the BIOS has turned it off
+	 * to improve WFR SDMA bandwidth
+	 */
+	pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCTL, &ectl);
+	if (!(ectl & PCI_EXP_DEVCTL_EXT_TAG)) {
+		dd_dev_info(dd, "Enabling PCIe extended tags\n");
+		ectl |= PCI_EXP_DEVCTL_EXT_TAG;
+		pcie_capability_write_word(dd->pcidev, PCI_EXP_DEVCTL, ectl);
+	}
 	/* Find out supported and configured values for parent (root) */
 	parent = dd->pcidev->bus->self;
 	if (!pci_is_root_bus(parent->bus)) {
@@ -915,7 +917,7 @@ int do_pcie_gen3_transition(struct hfi1_devdata *dd)
 	/*
 	 * A0 needs an additional SBR
 	 */
-	if (is_a0(dd))
+	if (is_ax(dd))
 		nsbr++;
 
 	/*
@@ -947,17 +949,7 @@ int do_pcie_gen3_transition(struct hfi1_devdata *dd)
 	}
 
 retry:
-
-	if (therm) {
-		/*
-		 * toggle SPICO_ENABLE to get back to the state
-		 * just after the firmware load
-		 */
-		sbus_request(dd, SBUS_MASTER_BROADCAST, 0x01,
-			WRITE_SBUS_RECEIVER, 0x00000040);
-		sbus_request(dd, SBUS_MASTER_BROADCAST, 0x01,
-			WRITE_SBUS_RECEIVER, 0x00000140);
-	}
+	/* the SBus download will reset the spico for thermal */
 
 	/* step 3: download SBus Master firmware */
 	/* step 4: download PCIe Gen3 SerDes firmware */
@@ -1201,7 +1193,7 @@ retry:
 	write_csr(dd, CCE_DC_CTRL, 0);
 
 	/* Set the LED off */
-	if (is_a0(dd))
+	if (is_ax(dd))
 		setextled(dd, 0);
 
 	/* check for any per-lane errors */
diff --git a/drivers/staging/rdma/hfi1/pio.c b/drivers/staging/rdma/hfi1/pio.c
index e5c32db4bc67..b51a4416312b 100644
--- a/drivers/staging/rdma/hfi1/pio.c
+++ b/drivers/staging/rdma/hfi1/pio.c
@@ -660,6 +660,24 @@ void set_pio_integrity(struct send_context *sc)
 	write_kctxt_csr(dd, hw_context, SC(CHECK_ENABLE), reg);
 }
 
+static u32 get_buffers_allocated(struct send_context *sc)
+{
+	int cpu;
+	u32 ret = 0;
+
+	for_each_possible_cpu(cpu)
+		ret += *per_cpu_ptr(sc->buffers_allocated, cpu);
+	return ret;
+}
+
+static void reset_buffers_allocated(struct send_context *sc)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		(*per_cpu_ptr(sc->buffers_allocated, cpu)) = 0;
+}
+
 /*
  * Allocate a NUMA relative send context structure of the given type along
  * with a HW context.
@@ -668,7 +686,7 @@ struct send_context *sc_alloc(struct hfi1_devdata *dd, int type,
 			      uint hdrqentsize, int numa)
 {
 	struct send_context_info *sci;
-	struct send_context *sc;
+	struct send_context *sc = NULL;
 	dma_addr_t pa;
 	unsigned long flags;
 	u64 reg;
@@ -686,10 +704,20 @@ struct send_context *sc_alloc(struct hfi1_devdata *dd, int type,
 	if (!sc)
 		return NULL;
 
+	sc->buffers_allocated = alloc_percpu(u32);
+	if (!sc->buffers_allocated) {
+		kfree(sc);
+		dd_dev_err(dd,
+			   "Cannot allocate buffers_allocated per cpu counters\n"
+			  );
+		return NULL;
+	}
+
 	spin_lock_irqsave(&dd->sc_lock, flags);
 	ret = sc_hw_alloc(dd, type, &sw_index, &hw_context);
 	if (ret) {
 		spin_unlock_irqrestore(&dd->sc_lock, flags);
+		free_percpu(sc->buffers_allocated);
 		kfree(sc);
 		return NULL;
 	}
@@ -705,7 +733,6 @@ struct send_context *sc_alloc(struct hfi1_devdata *dd, int type,
 	spin_lock_init(&sc->credit_ctrl_lock);
 	INIT_LIST_HEAD(&sc->piowait);
 	INIT_WORK(&sc->halt_work, sc_halted);
-	atomic_set(&sc->buffers_allocated, 0);
 	init_waitqueue_head(&sc->halt_wait);
 
 	/* grouping is always single context for now */
@@ -815,15 +842,16 @@ struct send_context *sc_alloc(struct hfi1_devdata *dd, int type,
 		}
 	}
 
-	dd_dev_info(dd,
-		"Send context %u(%u) %s group %u credits %u credit_ctrl 0x%llx threshold %u\n",
-		sw_index,
-		hw_context,
-		sc_type_name(type),
-		sc->group,
-		sc->credits,
-		sc->credit_ctrl,
-		thresh);
+	hfi1_cdbg(PIO,
+		  "Send context %u(%u) %s group %u credits %u credit_ctrl 0x%llx threshold %u\n",
+		  sw_index,
+		  hw_context,
+		  sc_type_name(type),
+		  sc->group,
+		  sc->credits,
+		  sc->credit_ctrl,
+		  thresh);
+
 
 	return sc;
 }
@@ -865,6 +893,7 @@ void sc_free(struct send_context *sc)
 	spin_unlock_irqrestore(&dd->sc_lock, flags);
 
 	kfree(sc->sr);
+	free_percpu(sc->buffers_allocated);
 	kfree(sc);
 }
 
@@ -1028,7 +1057,7 @@ int sc_restart(struct send_context *sc)
 		/* kernel context */
 		loop = 0;
 		while (1) {
-			count = atomic_read(&sc->buffers_allocated);
+			count = get_buffers_allocated(sc);
 			if (count == 0)
 				break;
 			if (loop > 100) {
@@ -1196,7 +1225,8 @@ int sc_enable(struct send_context *sc)
 	sc->sr_head = 0;
 	sc->sr_tail = 0;
 	sc->flags = 0;
-	atomic_set(&sc->buffers_allocated, 0);
+	/* the alloc lock insures no fast path allocation */
+	reset_buffers_allocated(sc);
 
 	/*
 	 * Clear all per-context errors.  Some of these will be set when
@@ -1372,7 +1402,8 @@ retry:
 
 	/* there is enough room */
 
-	atomic_inc(&sc->buffers_allocated);
+	preempt_disable();
+	this_cpu_inc(*sc->buffers_allocated);
 
 	/* read this once */
 	head = sc->sr_head;
@@ -1564,6 +1595,7 @@ void sc_release_update(struct send_context *sc)
 	u64 hw_free;
 	u32 head, tail;
 	unsigned long old_free;
+	unsigned long free;
 	unsigned long extra;
 	unsigned long flags;
 	int code;
@@ -1578,7 +1610,7 @@ void sc_release_update(struct send_context *sc)
 	extra = (((hw_free & CR_COUNTER_SMASK) >> CR_COUNTER_SHIFT)
 			- (old_free & CR_COUNTER_MASK))
 				& CR_COUNTER_MASK;
-	sc->free = old_free + extra;
+	free = old_free + extra;
 	trace_hfi1_piofree(sc, extra);
 
 	/* call sent buffer callbacks */
@@ -1588,7 +1620,7 @@ void sc_release_update(struct send_context *sc)
 	while (head != tail) {
 		pbuf = &sc->sr[tail].pbuf;
 
-		if (sent_before(sc->free, pbuf->sent_at)) {
+		if (sent_before(free, pbuf->sent_at)) {
 			/* not sent yet */
 			break;
 		}
@@ -1602,8 +1634,10 @@ void sc_release_update(struct send_context *sc)
 		if (tail >= sc->sr_size)
 			tail = 0;
 	}
-	/* update tail, in case we moved it */
 	sc->sr_tail = tail;
+	/* make sure tail is updated before free */
+	smp_wmb();
+	sc->free = free;
 	spin_unlock_irqrestore(&sc->release_lock, flags);
 	sc_piobufavail(sc);
 }
diff --git a/drivers/staging/rdma/hfi1/pio.h b/drivers/staging/rdma/hfi1/pio.h
index 0bb885ca3cfb..53d3e0a79375 100644
--- a/drivers/staging/rdma/hfi1/pio.h
+++ b/drivers/staging/rdma/hfi1/pio.h
@@ -130,7 +130,7 @@ struct send_context {
 	spinlock_t credit_ctrl_lock ____cacheline_aligned_in_smp;
 	u64 credit_ctrl;		/* cache for credit control */
 	u32 credit_intr_count;		/* count of credit intr users */
-	atomic_t buffers_allocated;	/* count of buffers allocated */
+	u32 __percpu *buffers_allocated;/* count of buffers allocated */
 	wait_queue_head_t halt_wait;    /* wait until kernel sees interrupt */
 };
 
diff --git a/drivers/staging/rdma/hfi1/pio_copy.c b/drivers/staging/rdma/hfi1/pio_copy.c
index 8972bbc02038..ebb0bafc68cb 100644
--- a/drivers/staging/rdma/hfi1/pio_copy.c
+++ b/drivers/staging/rdma/hfi1/pio_copy.c
@@ -160,7 +160,8 @@ void pio_copy(struct hfi1_devdata *dd, struct pio_buf *pbuf, u64 pbc,
 	}
 
 	/* finished with this buffer */
-	atomic_dec(&pbuf->sc->buffers_allocated);
+	this_cpu_dec(*pbuf->sc->buffers_allocated);
+	preempt_enable();
 }
 
 /* USE_SHIFTS is faster in user-space tests on a Xeon X5570 @ 2.93GHz */
@@ -854,5 +855,6 @@ void seg_pio_copy_end(struct pio_buf *pbuf)
 	}
 
 	/* finished with this buffer */
-	atomic_dec(&pbuf->sc->buffers_allocated);
+	this_cpu_dec(*pbuf->sc->buffers_allocated);
+	preempt_enable();
 }
diff --git a/drivers/staging/rdma/hfi1/qp.c b/drivers/staging/rdma/hfi1/qp.c
index f8c36166962f..ce036810d576 100644
--- a/drivers/staging/rdma/hfi1/qp.c
+++ b/drivers/staging/rdma/hfi1/qp.c
@@ -378,6 +378,7 @@ static void reset_qp(struct hfi1_qp *qp, enum ib_qp_type type)
 	}
 	qp->s_ack_state = IB_OPCODE_RC_ACKNOWLEDGE;
 	qp->r_nak_state = 0;
+	qp->r_adefered = 0;
 	qp->r_aflags = 0;
 	qp->r_flags = 0;
 	qp->s_head = 0;
@@ -617,7 +618,7 @@ int hfi1_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	int mig = 0;
 	int ret;
 	u32 pmtu = 0; /* for gcc warning only */
-	struct hfi1_devdata *dd;
+	struct hfi1_devdata *dd = dd_from_dev(dev);
 
 	spin_lock_irq(&qp->r_lock);
 	spin_lock(&qp->s_lock);
@@ -631,23 +632,35 @@ int hfi1_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 		goto inval;
 
 	if (attr_mask & IB_QP_AV) {
+		u8 sc;
+
 		if (attr->ah_attr.dlid >= HFI1_MULTICAST_LID_BASE)
 			goto inval;
 		if (hfi1_check_ah(qp->ibqp.device, &attr->ah_attr))
 			goto inval;
+		sc = ah_to_sc(ibqp->device, &attr->ah_attr);
+		if (!qp_to_sdma_engine(qp, sc) &&
+		    dd->flags & HFI1_HAS_SEND_DMA)
+			goto inval;
 	}
 
 	if (attr_mask & IB_QP_ALT_PATH) {
+		u8 sc;
+
 		if (attr->alt_ah_attr.dlid >= HFI1_MULTICAST_LID_BASE)
 			goto inval;
 		if (hfi1_check_ah(qp->ibqp.device, &attr->alt_ah_attr))
 			goto inval;
-		if (attr->alt_pkey_index >= hfi1_get_npkeys(dd_from_dev(dev)))
+		if (attr->alt_pkey_index >= hfi1_get_npkeys(dd))
+			goto inval;
+		sc = ah_to_sc(ibqp->device, &attr->alt_ah_attr);
+		if (!qp_to_sdma_engine(qp, sc) &&
+		    dd->flags & HFI1_HAS_SEND_DMA)
 			goto inval;
 	}
 
 	if (attr_mask & IB_QP_PKEY_INDEX)
-		if (attr->pkey_index >= hfi1_get_npkeys(dd_from_dev(dev)))
+		if (attr->pkey_index >= hfi1_get_npkeys(dd))
 			goto inval;
 
 	if (attr_mask & IB_QP_MIN_RNR_TIMER)
@@ -792,6 +805,8 @@ int hfi1_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 		qp->remote_ah_attr = attr->ah_attr;
 		qp->s_srate = attr->ah_attr.static_rate;
 		qp->srate_mbps = ib_rate_to_mbps(qp->s_srate);
+		qp->s_sc = ah_to_sc(ibqp->device, &qp->remote_ah_attr);
+		qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
 	}
 
 	if (attr_mask & IB_QP_ALT_PATH) {
@@ -806,6 +821,8 @@ int hfi1_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 			qp->port_num = qp->alt_ah_attr.port_num;
 			qp->s_pkey_index = qp->s_alt_pkey_index;
 			qp->s_flags |= HFI1_S_AHG_CLEAR;
+			qp->s_sc = ah_to_sc(ibqp->device, &qp->remote_ah_attr);
+			qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
 		}
 	}
 
@@ -1528,9 +1545,6 @@ struct sdma_engine *qp_to_sdma_engine(struct hfi1_qp *qp, u8 sc5)
 	if (!(dd->flags & HFI1_HAS_SEND_DMA))
 		return NULL;
 	switch (qp->ibqp.qp_type) {
-	case IB_QPT_UC:
-	case IB_QPT_RC:
-		break;
 	case IB_QPT_SMI:
 		return NULL;
 	default:
@@ -1685,3 +1699,25 @@ void qp_comm_est(struct hfi1_qp *qp)
 		qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
 	}
 }
+
+/*
+ * Switch to alternate path.
+ * The QP s_lock should be held and interrupts disabled.
+ */
+void hfi1_migrate_qp(struct hfi1_qp *qp)
+{
+	struct ib_event ev;
+
+	qp->s_mig_state = IB_MIG_MIGRATED;
+	qp->remote_ah_attr = qp->alt_ah_attr;
+	qp->port_num = qp->alt_ah_attr.port_num;
+	qp->s_pkey_index = qp->s_alt_pkey_index;
+	qp->s_flags |= HFI1_S_AHG_CLEAR;
+	qp->s_sc = ah_to_sc(qp->ibqp.device, &qp->remote_ah_attr);
+	qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
+
+	ev.device = qp->ibqp.device;
+	ev.element.qp = &qp->ibqp;
+	ev.event = IB_EVENT_PATH_MIG;
+	qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
+}
diff --git a/drivers/staging/rdma/hfi1/qp.h b/drivers/staging/rdma/hfi1/qp.h
index b9c1575990aa..62a94c5d7dca 100644
--- a/drivers/staging/rdma/hfi1/qp.h
+++ b/drivers/staging/rdma/hfi1/qp.h
@@ -128,7 +128,6 @@ static inline void clear_ahg(struct hfi1_qp *qp)
 	if (qp->s_sde && qp->s_ahgidx >= 0)
 		sdma_ahg_free(qp->s_sde, qp->s_ahgidx);
 	qp->s_ahgidx = -1;
-	qp->s_sde = NULL;
 }
 
 /**
@@ -212,7 +211,7 @@ int hfi1_qp_init(struct hfi1_ibdev *dev);
 void hfi1_qp_exit(struct hfi1_ibdev *dev);
 
 /**
- * hfi1_qp_waitup - wake up on the indicated event
+ * hfi1_qp_wakeup - wake up on the indicated event
  * @qp: the QP
  * @flag: flag the qp on which the qp is stalled
  */
@@ -223,19 +222,19 @@ struct sdma_engine *qp_to_sdma_engine(struct hfi1_qp *qp, u8 sc5);
 struct qp_iter;
 
 /**
- * qp_iter_init - wake up on the indicated event
+ * qp_iter_init - initialize the iterator for the qp hash list
  * @dev: the hfi1_ibdev
  */
 struct qp_iter *qp_iter_init(struct hfi1_ibdev *dev);
 
 /**
- * qp_iter_next - wakeup on the indicated event
+ * qp_iter_next - Find the next qp in the hash list
  * @iter: the iterator for the qp hash list
  */
 int qp_iter_next(struct qp_iter *iter);
 
 /**
- * qp_iter_next - wake up on the indicated event
+ * qp_iter_print - print the qp information to seq_file
  * @s: the seq_file to emit the qp information on
  * @iter: the iterator for the qp hash list
  */
@@ -247,4 +246,41 @@ void qp_iter_print(struct seq_file *s, struct qp_iter *iter);
  */
 void qp_comm_est(struct hfi1_qp *qp);
 
+/**
+ * _hfi1_schedule_send - schedule progress
+ * @qp: the QP
+ *
+ * This schedules qp progress w/o regard to the s_flags.
+ *
+ * It is only used in the post send, which doesn't hold
+ * the s_lock.
+ */
+static inline void _hfi1_schedule_send(struct hfi1_qp *qp)
+{
+	struct hfi1_ibport *ibp =
+		to_iport(qp->ibqp.device, qp->port_num);
+	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct hfi1_devdata *dd = dd_from_ibdev(qp->ibqp.device);
+
+	iowait_schedule(&qp->s_iowait, ppd->hfi1_wq,
+			qp->s_sde ?
+			qp->s_sde->cpu :
+			cpumask_first(cpumask_of_node(dd->assigned_node_id)));
+}
+
+/**
+ * hfi1_schedule_send - schedule progress
+ * @qp: the QP
+ *
+ * This schedules qp progress and caller should hold
+ * the s_lock.
+ */
+static inline void hfi1_schedule_send(struct hfi1_qp *qp)
+{
+	if (hfi1_send_ok(qp))
+		_hfi1_schedule_send(qp);
+}
+
+void hfi1_migrate_qp(struct hfi1_qp *qp);
+
 #endif /* _QP_H */
diff --git a/drivers/staging/rdma/hfi1/qsfp.c b/drivers/staging/rdma/hfi1/qsfp.c
index ffdb1d787a80..6326a915d7fd 100644
--- a/drivers/staging/rdma/hfi1/qsfp.c
+++ b/drivers/staging/rdma/hfi1/qsfp.c
@@ -475,7 +475,7 @@ int qsfp_dump(struct hfi1_pportdata *ppd, char *buf, int len)
 	u8 *cache = &ppd->qsfp_info.cache[0];
 	u8 bin_buff[QSFP_DUMP_CHUNK];
 	char lenstr[6];
-	int sofar, ret;
+	int sofar;
 	int bidx = 0;
 	u8 *atten = &cache[QSFP_ATTEN_OFFS];
 	u8 *vendor_oui = &cache[QSFP_VOUI_OFFS];
@@ -536,6 +536,5 @@ int qsfp_dump(struct hfi1_pportdata *ppd, char *buf, int len)
 			bidx += QSFP_DUMP_CHUNK;
 		}
 	}
-	ret = sofar;
-	return ret;
+	return sofar;
 }
diff --git a/drivers/staging/rdma/hfi1/rc.c b/drivers/staging/rdma/hfi1/rc.c
index 5fc93bb312f1..6f4a155f7931 100644
--- a/drivers/staging/rdma/hfi1/rc.c
+++ b/drivers/staging/rdma/hfi1/rc.c
@@ -1608,6 +1608,27 @@ bail:
 	return;
 }
 
+static inline void rc_defered_ack(struct hfi1_ctxtdata *rcd,
+				  struct hfi1_qp *qp)
+{
+	if (list_empty(&qp->rspwait)) {
+		qp->r_flags |= HFI1_R_RSP_DEFERED_ACK;
+		atomic_inc(&qp->refcount);
+		list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
+	}
+}
+
+static inline void rc_cancel_ack(struct hfi1_qp *qp)
+{
+	qp->r_adefered = 0;
+	if (list_empty(&qp->rspwait))
+		return;
+	list_del_init(&qp->rspwait);
+	qp->r_flags &= ~HFI1_R_RSP_DEFERED_ACK;
+	if (atomic_dec_and_test(&qp->refcount))
+		wake_up(&qp->wait);
+}
+
 /**
  * rc_rcv_error - process an incoming duplicate or error RC packet
  * @ohdr: the other headers for this packet
@@ -1650,11 +1671,7 @@ static noinline int rc_rcv_error(struct hfi1_other_headers *ohdr, void *data,
 			 * in the receive queue have been processed.
 			 * Otherwise, we end up propagating congestion.
 			 */
-			if (list_empty(&qp->rspwait)) {
-				qp->r_flags |= HFI1_R_RSP_NAK;
-				atomic_inc(&qp->refcount);
-				list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
-			}
+			rc_defered_ack(rcd, qp);
 		}
 		goto done;
 	}
@@ -1978,7 +1995,7 @@ void hfi1_rc_rcv(struct hfi1_packet *packet)
 	}
 
 	psn = be32_to_cpu(ohdr->bth[2]);
-	opcode = bth0 >> 24;
+	opcode = (bth0 >> 24) & 0xff;
 
 	/*
 	 * Process responses (ACKs) before anything else.  Note that the
@@ -2329,19 +2346,29 @@ send_last:
 	qp->r_ack_psn = psn;
 	qp->r_nak_state = 0;
 	/* Send an ACK if requested or required. */
-	if (psn & (1 << 31))
-		goto send_ack;
+	if (psn & IB_BTH_REQ_ACK) {
+		if (packet->numpkt == 0) {
+			rc_cancel_ack(qp);
+			goto send_ack;
+		}
+		if (qp->r_adefered >= HFI1_PSN_CREDIT) {
+			rc_cancel_ack(qp);
+			goto send_ack;
+		}
+		if (unlikely(is_fecn)) {
+			rc_cancel_ack(qp);
+			goto send_ack;
+		}
+		qp->r_adefered++;
+		rc_defered_ack(rcd, qp);
+	}
 	return;
 
 rnr_nak:
 	qp->r_nak_state = IB_RNR_NAK | qp->r_min_rnr_timer;
 	qp->r_ack_psn = qp->r_psn;
 	/* Queue RNR NAK for later */
-	if (list_empty(&qp->rspwait)) {
-		qp->r_flags |= HFI1_R_RSP_NAK;
-		atomic_inc(&qp->refcount);
-		list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
-	}
+	rc_defered_ack(rcd, qp);
 	return;
 
 nack_op_err:
@@ -2349,11 +2376,7 @@ nack_op_err:
 	qp->r_nak_state = IB_NAK_REMOTE_OPERATIONAL_ERROR;
 	qp->r_ack_psn = qp->r_psn;
 	/* Queue NAK for later */
-	if (list_empty(&qp->rspwait)) {
-		qp->r_flags |= HFI1_R_RSP_NAK;
-		atomic_inc(&qp->refcount);
-		list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
-	}
+	rc_defered_ack(rcd, qp);
 	return;
 
 nack_inv_unlck:
@@ -2363,11 +2386,7 @@ nack_inv:
 	qp->r_nak_state = IB_NAK_INVALID_REQUEST;
 	qp->r_ack_psn = qp->r_psn;
 	/* Queue NAK for later */
-	if (list_empty(&qp->rspwait)) {
-		qp->r_flags |= HFI1_R_RSP_NAK;
-		atomic_inc(&qp->refcount);
-		list_add_tail(&qp->rspwait, &rcd->qp_wait_list);
-	}
+	rc_defered_ack(rcd, qp);
 	return;
 
 nack_acc_unlck:
@@ -2391,19 +2410,19 @@ void hfi1_rc_hdrerr(
 	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
 	int diff;
 	u32 opcode;
-	u32 psn;
+	u32 psn, bth0;
 
 	/* Check for GRH */
 	ohdr = &hdr->u.oth;
 	if (has_grh)
 		ohdr = &hdr->u.l.oth;
 
-	opcode = be32_to_cpu(ohdr->bth[0]);
-	if (hfi1_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode))
+	bth0 = be32_to_cpu(ohdr->bth[0]);
+	if (hfi1_ruc_check_hdr(ibp, hdr, has_grh, qp, bth0))
 		return;
 
 	psn = be32_to_cpu(ohdr->bth[2]);
-	opcode >>= 24;
+	opcode = (bth0 >> 24) & 0xff;
 
 	/* Only deal with RDMA Writes for now */
 	if (opcode < IB_OPCODE_RC_RDMA_READ_RESPONSE_FIRST) {
@@ -2421,13 +2440,7 @@ void hfi1_rc_hdrerr(
 			 * Otherwise, we end up
 			 * propagating congestion.
 			 */
-			if (list_empty(&qp->rspwait)) {
-				qp->r_flags |= HFI1_R_RSP_NAK;
-				atomic_inc(&qp->refcount);
-				list_add_tail(
-					&qp->rspwait,
-					&rcd->qp_wait_list);
-				}
+			rc_defered_ack(rcd, qp);
 		} /* Out of sequence NAK */
 	} /* QP Request NAKs */
 }
diff --git a/drivers/staging/rdma/hfi1/ruc.c b/drivers/staging/rdma/hfi1/ruc.c
index 49bc9fd7a51a..4a91975b68d7 100644
--- a/drivers/staging/rdma/hfi1/ruc.c
+++ b/drivers/staging/rdma/hfi1/ruc.c
@@ -241,26 +241,6 @@ bail:
 	return ret;
 }
 
-/*
- * Switch to alternate path.
- * The QP s_lock should be held and interrupts disabled.
- */
-void hfi1_migrate_qp(struct hfi1_qp *qp)
-{
-	struct ib_event ev;
-
-	qp->s_mig_state = IB_MIG_MIGRATED;
-	qp->remote_ah_attr = qp->alt_ah_attr;
-	qp->port_num = qp->alt_ah_attr.port_num;
-	qp->s_pkey_index = qp->s_alt_pkey_index;
-	qp->s_flags |= HFI1_S_AHG_CLEAR;
-
-	ev.device = qp->ibqp.device;
-	ev.element.qp = &qp->ibqp;
-	ev.event = IB_EVENT_PATH_MIG;
-	qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
-}
-
 static __be64 get_sguid(struct hfi1_ibport *ibp, unsigned index)
 {
 	if (!index) {
@@ -308,11 +288,12 @@ int hfi1_ruc_check_hdr(struct hfi1_ibport *ibp, struct hfi1_ib_header *hdr,
 		}
 		if (unlikely(rcv_pkey_check(ppd_from_ibp(ibp), (u16)bth0,
 					    sc5, be16_to_cpu(hdr->lrh[3])))) {
-			hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_PKEY,
+			hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_P_KEY,
 				       (u16)bth0,
 				       (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF,
 				       0, qp->ibqp.qp_num,
-				       hdr->lrh[3], hdr->lrh[1]);
+				       be16_to_cpu(hdr->lrh[3]),
+				       be16_to_cpu(hdr->lrh[1]));
 			goto err;
 		}
 		/* Validate the SLID. See Ch. 9.6.1.5 and 17.2.8 */
@@ -340,11 +321,12 @@ int hfi1_ruc_check_hdr(struct hfi1_ibport *ibp, struct hfi1_ib_header *hdr,
 		}
 		if (unlikely(rcv_pkey_check(ppd_from_ibp(ibp), (u16)bth0,
 					    sc5, be16_to_cpu(hdr->lrh[3])))) {
-			hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_PKEY,
+			hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_P_KEY,
 				       (u16)bth0,
 				       (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF,
 				       0, qp->ibqp.qp_num,
-				       hdr->lrh[3], hdr->lrh[1]);
+				       be16_to_cpu(hdr->lrh[3]),
+				       be16_to_cpu(hdr->lrh[1]));
 			goto err;
 		}
 		/* Validate the SLID. See Ch. 9.6.1.5 */
@@ -714,11 +696,8 @@ static inline void build_ahg(struct hfi1_qp *qp, u32 npsn)
 		clear_ahg(qp);
 	if (!(qp->s_flags & HFI1_S_AHG_VALID)) {
 		/* first middle that needs copy  */
-		if (qp->s_ahgidx < 0) {
-			if (!qp->s_sde)
-				qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
+		if (qp->s_ahgidx < 0)
 			qp->s_ahgidx = sdma_ahg_alloc(qp->s_sde);
-		}
 		if (qp->s_ahgidx >= 0) {
 			qp->s_ahgpsn = npsn;
 			qp->s_hdr->tx_flags |= SDMA_TXREQ_F_AHG_COPY;
@@ -761,7 +740,6 @@ void hfi1_make_ruc_header(struct hfi1_qp *qp, struct hfi1_other_headers *ohdr,
 	u16 lrh0;
 	u32 nwords;
 	u32 extra_bytes;
-	u8 sc5;
 	u32 bth1;
 
 	/* Construct the header. */
@@ -775,9 +753,7 @@ void hfi1_make_ruc_header(struct hfi1_qp *qp, struct hfi1_other_headers *ohdr,
 		lrh0 = HFI1_LRH_GRH;
 		middle = 0;
 	}
-	sc5 = ibp->sl_to_sc[qp->remote_ah_attr.sl];
-	lrh0 |= (sc5 & 0xf) << 12 | (qp->remote_ah_attr.sl & 0xf) << 4;
-	qp->s_sc = sc5;
+	lrh0 |= (qp->s_sc & 0xf) << 12 | (qp->remote_ah_attr.sl & 0xf) << 4;
 	/*
 	 * reset s_hdr/AHG fields
 	 *
@@ -835,16 +811,20 @@ void hfi1_do_send(struct work_struct *work)
 {
 	struct iowait *wait = container_of(work, struct iowait, iowork);
 	struct hfi1_qp *qp = container_of(wait, struct hfi1_qp, s_iowait);
-	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
-	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct hfi1_pkt_state ps;
 	int (*make_req)(struct hfi1_qp *qp);
 	unsigned long flags;
 	unsigned long timeout;
 
+	ps.dev = to_idev(qp->ibqp.device);
+	ps.ibp = to_iport(qp->ibqp.device, qp->port_num);
+	ps.ppd = ppd_from_ibp(ps.ibp);
+
 	if ((qp->ibqp.qp_type == IB_QPT_RC ||
 	     qp->ibqp.qp_type == IB_QPT_UC) &&
 	    !loopback &&
-	    (qp->remote_ah_attr.dlid & ~((1 << ppd->lmc) - 1)) == ppd->lid) {
+	    (qp->remote_ah_attr.dlid & ~((1 << ps.ppd->lmc) - 1)) ==
+	    ps.ppd->lid) {
 		ruc_loopback(qp);
 		return;
 	}
@@ -876,8 +856,7 @@ void hfi1_do_send(struct work_struct *work)
 			 * If the packet cannot be sent now, return and
 			 * the send tasklet will be woken up later.
 			 */
-			if (hfi1_verbs_send(qp, qp->s_hdr, qp->s_hdrwords,
-					    qp->s_cur_sge, qp->s_cur_size))
+			if (hfi1_verbs_send(qp, &ps))
 				break;
 			/* Record that s_hdr is empty. */
 			qp->s_hdrwords = 0;
@@ -886,7 +865,7 @@ void hfi1_do_send(struct work_struct *work)
 		/* allow other tasks to run */
 		if (unlikely(time_after(jiffies, timeout))) {
 			cond_resched();
-			ppd->dd->verbs_dev.n_send_schedule++;
+			ps.ppd->dd->verbs_dev.n_send_schedule++;
 			timeout = jiffies + SEND_RESCHED_TIMEOUT;
 		}
 	} while (make_req(qp));
diff --git a/drivers/staging/rdma/hfi1/sdma.c b/drivers/staging/rdma/hfi1/sdma.c
index 2a1da2189900..9a15f1f32b45 100644
--- a/drivers/staging/rdma/hfi1/sdma.c
+++ b/drivers/staging/rdma/hfi1/sdma.c
@@ -236,7 +236,6 @@ static void sdma_hw_clean_up_task(unsigned long);
 static void sdma_put(struct sdma_state *);
 static void sdma_set_state(struct sdma_engine *, enum sdma_states);
 static void sdma_start_hw_clean_up(struct sdma_engine *);
-static void sdma_start_sw_clean_up(struct sdma_engine *);
 static void sdma_sw_clean_up_task(unsigned long);
 static void sdma_sendctrl(struct sdma_engine *, unsigned);
 static void init_sdma_regs(struct sdma_engine *, u32, uint);
@@ -470,12 +469,6 @@ static void sdma_err_halt_wait(struct work_struct *work)
 	sdma_process_event(sde, sdma_event_e15_hw_halt_done);
 }
 
-static void sdma_start_err_halt_wait(struct sdma_engine *sde)
-{
-	schedule_work(&sde->err_halt_worker);
-}
-
-
 static void sdma_err_progress_check_schedule(struct sdma_engine *sde)
 {
 	if (!is_bx(sde->dd) && HFI1_CAP_IS_KSET(SDMA_AHG)) {
@@ -682,11 +675,6 @@ static void sdma_start_hw_clean_up(struct sdma_engine *sde)
 	tasklet_hi_schedule(&sde->sdma_hw_clean_up_task);
 }
 
-static void sdma_start_sw_clean_up(struct sdma_engine *sde)
-{
-	tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
-}
-
 static void sdma_set_state(struct sdma_engine *sde,
 	enum sdma_states next_state)
 {
@@ -777,19 +765,27 @@ struct sdma_engine *sdma_select_engine_vl(
 	struct sdma_map_elem *e;
 	struct sdma_engine *rval;
 
-	if (WARN_ON(vl > 8))
-		return NULL;
+	/* NOTE This should only happen if SC->VL changed after the initial
+	 *      checks on the QP/AH
+	 *      Default will return engine 0 below
+	 */
+	if (vl >= num_vls) {
+		rval = NULL;
+		goto done;
+	}
 
 	rcu_read_lock();
 	m = rcu_dereference(dd->sdma_map);
 	if (unlikely(!m)) {
 		rcu_read_unlock();
-		return NULL;
+		return &dd->per_sdma[0];
 	}
 	e = m->map[vl & m->mask];
 	rval = e->sde[selector & e->mask];
 	rcu_read_unlock();
 
+done:
+	rval =  !rval ? &dd->per_sdma[0] : rval;
 	trace_hfi1_sdma_engine_select(dd, selector, vl, rval->this_idx);
 	return rval;
 }
@@ -1874,7 +1870,7 @@ static void dump_sdma_state(struct sdma_engine *sde)
 }
 
 #define SDE_FMT \
-	"SDE %u STE %s C 0x%llx S 0x%016llx E 0x%llx T(HW) 0x%llx T(SW) 0x%x H(HW) 0x%llx H(SW) 0x%x H(D) 0x%llx DM 0x%llx GL 0x%llx R 0x%llx LIS 0x%llx AHGI 0x%llx TXT %u TXH %u DT %u DH %u FLNE %d DQF %u SLC 0x%llx\n"
+	"SDE %u CPU %d STE %s C 0x%llx S 0x%016llx E 0x%llx T(HW) 0x%llx T(SW) 0x%x H(HW) 0x%llx H(SW) 0x%x H(D) 0x%llx DM 0x%llx GL 0x%llx R 0x%llx LIS 0x%llx AHGI 0x%llx TXT %u TXH %u DT %u DH %u FLNE %d DQF %u SLC 0x%llx\n"
 /**
  * sdma_seqfile_dump_sde() - debugfs dump of sde
  * @s: seq file
@@ -1894,6 +1890,7 @@ void sdma_seqfile_dump_sde(struct seq_file *s, struct sdma_engine *sde)
 	head = sde->descq_head & sde->sdma_mask;
 	tail = ACCESS_ONCE(sde->descq_tail) & sde->sdma_mask;
 	seq_printf(s, SDE_FMT, sde->this_idx,
+		sde->cpu,
 		sdma_state_name(sde->state.current_state),
 		(unsigned long long)read_sde_csr(sde, SD(CTRL)),
 		(unsigned long long)read_sde_csr(sde, SD(STATUS)),
@@ -2308,7 +2305,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		case sdma_event_e50_hw_cleaned:
 			break;
 		case sdma_event_e60_hw_halted:
-			sdma_start_err_halt_wait(sde);
+			schedule_work(&sde->err_halt_worker);
 			break;
 		case sdma_event_e70_go_idle:
 			ss->go_s99_running = 0;
@@ -2389,7 +2386,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 			break;
 		case sdma_event_e60_hw_halted:
 			sdma_set_state(sde, sdma_state_s50_hw_halt_wait);
-			sdma_start_err_halt_wait(sde);
+			schedule_work(&sde->err_halt_worker);
 			break;
 		case sdma_event_e70_go_idle:
 			break;
@@ -2452,7 +2449,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
@@ -2494,13 +2491,13 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
 		case sdma_event_e15_hw_halt_done:
 			sdma_set_state(sde, sdma_state_s30_sw_clean_up_wait);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e25_hw_clean_up_done:
 			break;
@@ -2512,7 +2509,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		case sdma_event_e50_hw_cleaned:
 			break;
 		case sdma_event_e60_hw_halted:
-			sdma_start_err_halt_wait(sde);
+			schedule_work(&sde->err_halt_worker);
 			break;
 		case sdma_event_e70_go_idle:
 			ss->go_s99_running = 0;
@@ -2535,13 +2532,13 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
 		case sdma_event_e15_hw_halt_done:
 			sdma_set_state(sde, sdma_state_s30_sw_clean_up_wait);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e25_hw_clean_up_done:
 			break;
@@ -2553,7 +2550,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		case sdma_event_e50_hw_cleaned:
 			break;
 		case sdma_event_e60_hw_halted:
-			sdma_start_err_halt_wait(sde);
+			schedule_work(&sde->err_halt_worker);
 			break;
 		case sdma_event_e70_go_idle:
 			ss->go_s99_running = 0;
@@ -2575,7 +2572,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
@@ -2599,7 +2596,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 			break;
 		case sdma_event_e81_hw_frozen:
 			sdma_set_state(sde, sdma_state_s82_freeze_sw_clean);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e82_hw_unfreeze:
 			break;
@@ -2614,7 +2611,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
@@ -2658,7 +2655,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 		switch (event) {
 		case sdma_event_e00_go_hw_down:
 			sdma_set_state(sde, sdma_state_s00_hw_down);
-			sdma_start_sw_clean_up(sde);
+			tasklet_hi_schedule(&sde->sdma_sw_clean_up_task);
 			break;
 		case sdma_event_e10_go_hw_start:
 			break;
@@ -2681,7 +2678,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
 			* progress check
 			*/
 			sdma_set_state(sde, sdma_state_s50_hw_halt_wait);
-			sdma_start_err_halt_wait(sde);
+			schedule_work(&sde->err_halt_worker);
 			break;
 		case sdma_event_e70_go_idle:
 			sdma_set_state(sde, sdma_state_s60_idle_halt_wait);
@@ -2734,22 +2731,21 @@ static int _extend_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx)
 			tx->coalesce_buf = kmalloc(tx->tlen + sizeof(u32),
 						   GFP_ATOMIC);
 			if (!tx->coalesce_buf)
-				return -ENOMEM;
-
+				goto enomem;
 			tx->coalesce_idx = 0;
 		}
 		return 0;
 	}
 
 	if (unlikely(tx->num_desc == MAX_DESC))
-		return -ENOMEM;
+		goto enomem;
 
 	tx->descp = kmalloc_array(
 			MAX_DESC,
 			sizeof(struct sdma_desc),
 			GFP_ATOMIC);
 	if (!tx->descp)
-		return -ENOMEM;
+		goto enomem;
 
 	/* reserve last descriptor for coalescing */
 	tx->desc_limit = MAX_DESC - 1;
@@ -2757,6 +2753,9 @@ static int _extend_sdma_tx_descs(struct hfi1_devdata *dd, struct sdma_txreq *tx)
 	for (i = 0; i < tx->num_desc; i++)
 		tx->descp[i] = tx->descs[i];
 	return 0;
+enomem:
+	sdma_txclean(dd, tx);
+	return -ENOMEM;
 }
 
 /*
diff --git a/drivers/staging/rdma/hfi1/sdma.h b/drivers/staging/rdma/hfi1/sdma.h
index cc22d2ee2054..da89e6458162 100644
--- a/drivers/staging/rdma/hfi1/sdma.h
+++ b/drivers/staging/rdma/hfi1/sdma.h
@@ -410,8 +410,6 @@ struct sdma_engine {
 	u64 idle_mask;
 	u64 progress_mask;
 	/* private: */
-	struct workqueue_struct *wq;
-	/* private: */
 	volatile __le64      *head_dma; /* DMA'ed by chip */
 	/* private: */
 	dma_addr_t            head_phys;
@@ -426,6 +424,8 @@ struct sdma_engine {
 	u32 sdma_mask;
 	/* private */
 	struct sdma_state state;
+	/* private */
+	int cpu;
 	/* private: */
 	u8 sdma_shift;
 	/* private: */
@@ -774,10 +774,13 @@ static inline int _sdma_txadd_daddr(
 	tx->tlen -= len;
 	/* special cases for last */
 	if (!tx->tlen) {
-		if (tx->packet_len & (sizeof(u32) - 1))
+		if (tx->packet_len & (sizeof(u32) - 1)) {
 			rval = _pad_sdma_tx_descs(dd, tx);
-		else
+			if (rval)
+				return rval;
+		} else {
 			_sdma_close_tx(dd, tx);
+		}
 	}
 	tx->num_desc++;
 	return rval;
@@ -990,7 +993,9 @@ static inline void sdma_iowait_schedule(
 	struct sdma_engine *sde,
 	struct iowait *wait)
 {
-	iowait_schedule(wait, sde->wq);
+	struct hfi1_pportdata *ppd = sde->dd->pport;
+
+	iowait_schedule(wait, ppd->hfi1_wq, sde->cpu);
 }
 
 /* for use by interrupt handling */
diff --git a/drivers/staging/rdma/hfi1/trace.c b/drivers/staging/rdma/hfi1/trace.c
index f55b75194847..10122e84cb2f 100644
--- a/drivers/staging/rdma/hfi1/trace.c
+++ b/drivers/staging/rdma/hfi1/trace.c
@@ -67,7 +67,7 @@ u8 ibhdr_exhdr_len(struct hfi1_ib_header *hdr)
 
 #define IMM_PRN  "imm %d"
 #define RETH_PRN "reth vaddr 0x%.16llx rkey 0x%.8x dlen 0x%.8x"
-#define AETH_PRN "aeth syn 0x%.2x msn 0x%.8x"
+#define AETH_PRN "aeth syn 0x%.2x %s msn 0x%.8x"
 #define DETH_PRN "deth qkey 0x%.8x sqpn 0x%.6x"
 #define ATOMICACKETH_PRN "origdata %lld"
 #define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %lld cdata %lld"
@@ -79,6 +79,19 @@ static u64 ib_u64_get(__be32 *p)
 	return ((u64)be32_to_cpu(p[0]) << 32) | be32_to_cpu(p[1]);
 }
 
+static const char *parse_syndrome(u8 syndrome)
+{
+	switch (syndrome >> 5) {
+	case 0:
+		return "ACK";
+	case 1:
+		return "RNRNAK";
+	case 3:
+		return "NAK";
+	}
+	return "";
+}
+
 const char *parse_everbs_hdrs(
 	struct trace_seq *p,
 	u8 opcode,
@@ -124,16 +137,18 @@ const char *parse_everbs_hdrs(
 	case OP(RC, RDMA_READ_RESPONSE_LAST):
 	case OP(RC, RDMA_READ_RESPONSE_ONLY):
 	case OP(RC, ACKNOWLEDGE):
-		trace_seq_printf(p, AETH_PRN,
-			be32_to_cpu(eh->aeth) >> 24,
-			be32_to_cpu(eh->aeth) & HFI1_MSN_MASK);
+		trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
+				 parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
+				 be32_to_cpu(eh->aeth) & HFI1_MSN_MASK);
 		break;
 	/* aeth + atomicacketh */
 	case OP(RC, ATOMIC_ACKNOWLEDGE):
 		trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
-			(be32_to_cpu(eh->at.aeth) >> 24) & 0xff,
-			be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK,
-			(unsigned long long)ib_u64_get(eh->at.atomic_ack_eth));
+				 be32_to_cpu(eh->at.aeth) >> 24,
+				 parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
+				 be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK,
+				 (unsigned long long)
+				 ib_u64_get(eh->at.atomic_ack_eth));
 		break;
 	/* atomiceth */
 	case OP(RC, COMPARE_SWAP):
diff --git a/drivers/staging/rdma/hfi1/trace.h b/drivers/staging/rdma/hfi1/trace.h
index 57430295c404..86c12ebfd4f0 100644
--- a/drivers/staging/rdma/hfi1/trace.h
+++ b/drivers/staging/rdma/hfi1/trace.h
@@ -417,7 +417,8 @@ __print_symbolic(opcode,                                   \
 	ib_opcode_name(UC_RDMA_WRITE_ONLY),                \
 	ib_opcode_name(UC_RDMA_WRITE_ONLY_WITH_IMMEDIATE), \
 	ib_opcode_name(UD_SEND_ONLY),                      \
-	ib_opcode_name(UD_SEND_ONLY_WITH_IMMEDIATE))
+	ib_opcode_name(UD_SEND_ONLY_WITH_IMMEDIATE),       \
+	ib_opcode_name(CNP))
 
 
 #define LRH_PRN "vl %d lver %d sl %d lnh %d,%s dlid %.4x len %d slid %.4x"
diff --git a/drivers/staging/rdma/hfi1/uc.c b/drivers/staging/rdma/hfi1/uc.c
index 6095039c4485..4f2a7889a852 100644
--- a/drivers/staging/rdma/hfi1/uc.c
+++ b/drivers/staging/rdma/hfi1/uc.c
@@ -268,7 +268,7 @@ void hfi1_uc_rcv(struct hfi1_packet *packet)
 	u32 tlen = packet->tlen;
 	struct hfi1_qp *qp = packet->qp;
 	struct hfi1_other_headers *ohdr = packet->ohdr;
-	u32 opcode;
+	u32 bth0, opcode;
 	u32 hdrsize = packet->hlen;
 	u32 psn;
 	u32 pad;
@@ -278,10 +278,9 @@ void hfi1_uc_rcv(struct hfi1_packet *packet)
 	int has_grh = rcv_flags & HFI1_HAS_GRH;
 	int ret;
 	u32 bth1;
-	struct ib_grh *grh = NULL;
 
-	opcode = be32_to_cpu(ohdr->bth[0]);
-	if (hfi1_ruc_check_hdr(ibp, hdr, has_grh, qp, opcode))
+	bth0 = be32_to_cpu(ohdr->bth[0]);
+	if (hfi1_ruc_check_hdr(ibp, hdr, has_grh, qp, bth0))
 		return;
 
 	bth1 = be32_to_cpu(ohdr->bth[1]);
@@ -303,6 +302,7 @@ void hfi1_uc_rcv(struct hfi1_packet *packet)
 		}
 
 		if (bth1 & HFI1_FECN_SMASK) {
+			struct ib_grh *grh = NULL;
 			u16 pkey = (u16)be32_to_cpu(ohdr->bth[0]);
 			u16 slid = be16_to_cpu(hdr->lrh[3]);
 			u16 dlid = be16_to_cpu(hdr->lrh[1]);
@@ -310,13 +310,16 @@ void hfi1_uc_rcv(struct hfi1_packet *packet)
 			u8 sc5;
 
 			sc5 = ibp->sl_to_sc[qp->remote_ah_attr.sl];
+			if (has_grh)
+				grh = &hdr->u.l.grh;
 
-			return_cnp(ibp, qp, src_qp, pkey, dlid, slid, sc5, grh);
+			return_cnp(ibp, qp, src_qp, pkey, dlid, slid, sc5,
+				   grh);
 		}
 	}
 
 	psn = be32_to_cpu(ohdr->bth[2]);
-	opcode >>= 24;
+	opcode = (bth0 >> 24) & 0xff;
 
 	/* Compare the PSN verses the expected PSN. */
 	if (unlikely(cmp_psn(psn, qp->r_psn) != 0)) {
diff --git a/drivers/staging/rdma/hfi1/ud.c b/drivers/staging/rdma/hfi1/ud.c
index 5a9c784bec04..bd1b402c1e14 100644
--- a/drivers/staging/rdma/hfi1/ud.c
+++ b/drivers/staging/rdma/hfi1/ud.c
@@ -111,11 +111,10 @@ static void ud_loopback(struct hfi1_qp *sqp, struct hfi1_swqe *swqe)
 				   ((1 << ppd->lmc) - 1));
 		if (unlikely(ingress_pkey_check(ppd, pkey, sc5,
 						qp->s_pkey_index, slid))) {
-			hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_PKEY, pkey,
+			hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_P_KEY, pkey,
 				       ah_attr->sl,
 				       sqp->ibqp.qp_num, qp->ibqp.qp_num,
-				       cpu_to_be16(slid),
-				       cpu_to_be16(ah_attr->dlid));
+				       slid, ah_attr->dlid);
 			goto drop;
 		}
 	}
@@ -135,11 +134,11 @@ static void ud_loopback(struct hfi1_qp *sqp, struct hfi1_swqe *swqe)
 
 			lid = ppd->lid | (ah_attr->src_path_bits &
 					  ((1 << ppd->lmc) - 1));
-			hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_QKEY, qkey,
+			hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_Q_KEY, qkey,
 				       ah_attr->sl,
 				       sqp->ibqp.qp_num, qp->ibqp.qp_num,
-				       cpu_to_be16(lid),
-				       cpu_to_be16(ah_attr->dlid));
+				       lid,
+				       ah_attr->dlid);
 			goto drop;
 		}
 	}
@@ -383,6 +382,7 @@ int hfi1_make_ud_req(struct hfi1_qp *qp)
 		lrh0 |= (sc5 & 0xf) << 12;
 		qp->s_sc = sc5;
 	}
+	qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
 	qp->s_hdr->ibh.lrh[0] = cpu_to_be16(lrh0);
 	qp->s_hdr->ibh.lrh[1] = cpu_to_be16(ah_attr->dlid);  /* DEST LID */
 	qp->s_hdr->ibh.lrh[2] =
@@ -736,12 +736,13 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
 				 * for invalid pkeys is optional according to
 				 * IB spec (release 1.3, section 10.9.4)
 				 */
-				hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_PKEY,
+				hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_P_KEY,
 					       pkey,
 					       (be16_to_cpu(hdr->lrh[0]) >> 4) &
 						0xF,
 					       src_qp, qp->ibqp.qp_num,
-					       hdr->lrh[3], hdr->lrh[1]);
+					       be16_to_cpu(hdr->lrh[3]),
+					       be16_to_cpu(hdr->lrh[1]));
 				return;
 			}
 		} else {
@@ -752,10 +753,11 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
 
 		}
 		if (unlikely(qkey != qp->qkey)) {
-			hfi1_bad_pqkey(ibp, IB_NOTICE_TRAP_BAD_QKEY, qkey,
+			hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_Q_KEY, qkey,
 				       (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF,
 				       src_qp, qp->ibqp.qp_num,
-				       hdr->lrh[3], hdr->lrh[1]);
+				       be16_to_cpu(hdr->lrh[3]),
+				       be16_to_cpu(hdr->lrh[1]));
 			return;
 		}
 		/* Drop invalid MAD packets (see 13.5.3.1). */
diff --git a/drivers/staging/rdma/hfi1/user_exp_rcv.h b/drivers/staging/rdma/hfi1/user_exp_rcv.h
new file mode 100644
index 000000000000..4f4876e1d353
--- /dev/null
+++ b/drivers/staging/rdma/hfi1/user_exp_rcv.h
@@ -0,0 +1,74 @@
+#ifndef _HFI1_USER_EXP_RCV_H
+#define _HFI1_USER_EXP_RCV_H
+/*
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  - Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  - Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  - Neither the name of Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#define EXP_TID_TIDLEN_MASK   0x7FFULL
+#define EXP_TID_TIDLEN_SHIFT  0
+#define EXP_TID_TIDCTRL_MASK  0x3ULL
+#define EXP_TID_TIDCTRL_SHIFT 20
+#define EXP_TID_TIDIDX_MASK   0x3FFULL
+#define EXP_TID_TIDIDX_SHIFT  22
+#define EXP_TID_GET(tid, field)	\
+	(((tid) >> EXP_TID_TID##field##_SHIFT) & EXP_TID_TID##field##_MASK)
+
+#define EXP_TID_SET(field, value)			\
+	(((value) & EXP_TID_TID##field##_MASK) <<	\
+	 EXP_TID_TID##field##_SHIFT)
+#define EXP_TID_CLEAR(tid, field) ({					\
+		(tid) &= ~(EXP_TID_TID##field##_MASK <<			\
+			   EXP_TID_TID##field##_SHIFT);			\
+		})
+#define EXP_TID_RESET(tid, field, value) do {				\
+		EXP_TID_CLEAR(tid, field);				\
+		(tid) |= EXP_TID_SET(field, (value));			\
+	} while (0)
+
+#endif /* _HFI1_USER_EXP_RCV_H */
diff --git a/drivers/staging/rdma/hfi1/user_pages.c b/drivers/staging/rdma/hfi1/user_pages.c
index 9071afbd7bf4..692de658f0dc 100644
--- a/drivers/staging/rdma/hfi1/user_pages.c
+++ b/drivers/staging/rdma/hfi1/user_pages.c
@@ -49,59 +49,11 @@
  */
 
 #include <linux/mm.h>
+#include <linux/sched.h>
 #include <linux/device.h>
 
 #include "hfi.h"
 
-static void __hfi1_release_user_pages(struct page **p, size_t num_pages,
-				      int dirty)
-{
-	size_t i;
-
-	for (i = 0; i < num_pages; i++) {
-		if (dirty)
-			set_page_dirty_lock(p[i]);
-		put_page(p[i]);
-	}
-}
-
-/*
- * Call with current->mm->mmap_sem held.
- */
-static int __hfi1_get_user_pages(unsigned long start_page, size_t num_pages,
-				 struct page **p)
-{
-	unsigned long lock_limit;
-	size_t got;
-	int ret;
-
-	lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
-
-	if (num_pages > lock_limit && !capable(CAP_IPC_LOCK)) {
-		ret = -ENOMEM;
-		goto bail;
-	}
-
-	for (got = 0; got < num_pages; got += ret) {
-		ret = get_user_pages(current, current->mm,
-				     start_page + got * PAGE_SIZE,
-				     num_pages - got, 1, 1,
-				     p + got, NULL);
-		if (ret < 0)
-			goto bail_release;
-	}
-
-	current->mm->pinned_vm += num_pages;
-
-	ret = 0;
-	goto bail;
-
-bail_release:
-	__hfi1_release_user_pages(p, got, 0);
-bail:
-	return ret;
-}
-
 /**
  * hfi1_map_page - a safety wrapper around pci_map_page()
  *
@@ -116,41 +68,44 @@ dma_addr_t hfi1_map_page(struct pci_dev *hwdev, struct page *page,
 	return phys;
 }
 
-/**
- * hfi1_get_user_pages - lock user pages into memory
- * @start_page: the start page
- * @num_pages: the number of pages
- * @p: the output page structures
- *
- * This function takes a given start page (page aligned user virtual
- * address) and pins it and the following specified number of pages.  For
- * now, num_pages is always 1, but that will probably change at some point
- * (because caller is doing expected sends on a single virtually contiguous
- * buffer, so we can do all pages at once).
- */
-int hfi1_get_user_pages(unsigned long start_page, size_t num_pages,
-			struct page **p)
+int hfi1_acquire_user_pages(unsigned long vaddr, size_t npages, bool writable,
+			    struct page **pages)
 {
+	unsigned long pinned, lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+	bool can_lock = capable(CAP_IPC_LOCK);
 	int ret;
 
-	down_write(&current->mm->mmap_sem);
+	down_read(&current->mm->mmap_sem);
+	pinned = current->mm->pinned_vm;
+	up_read(&current->mm->mmap_sem);
 
-	ret = __hfi1_get_user_pages(start_page, num_pages, p);
+	if (pinned + npages > lock_limit && !can_lock)
+		return -ENOMEM;
 
+	ret = get_user_pages_fast(vaddr, npages, writable, pages);
+	if (ret < 0)
+		return ret;
+
+	down_write(&current->mm->mmap_sem);
+	current->mm->pinned_vm += ret;
 	up_write(&current->mm->mmap_sem);
 
 	return ret;
 }
 
-void hfi1_release_user_pages(struct page **p, size_t num_pages)
+void hfi1_release_user_pages(struct page **p, size_t npages, bool dirty)
 {
-	if (current->mm) /* during close after signal, mm can be NULL */
-		down_write(&current->mm->mmap_sem);
+	size_t i;
 
-	__hfi1_release_user_pages(p, num_pages, 1);
+	for (i = 0; i < npages; i++) {
+		if (dirty)
+			set_page_dirty_lock(p[i]);
+		put_page(p[i]);
+	}
 
-	if (current->mm) {
-		current->mm->pinned_vm -= num_pages;
+	if (current->mm) { /* during close after signal, mm can be NULL */
+		down_write(&current->mm->mmap_sem);
+		current->mm->pinned_vm -= npages;
 		up_write(&current->mm->mmap_sem);
 	}
 }
diff --git a/drivers/staging/rdma/hfi1/user_sdma.c b/drivers/staging/rdma/hfi1/user_sdma.c
index 36c838dcf023..d3de771a0770 100644
--- a/drivers/staging/rdma/hfi1/user_sdma.c
+++ b/drivers/staging/rdma/hfi1/user_sdma.c
@@ -146,8 +146,8 @@ MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 12
 #define KDETH_OM_MAX_SIZE  (1 << ((KDETH_OM_LARGE / KDETH_OM_SMALL) + 1))
 
 /* Last packet in the request */
-#define TXREQ_FLAGS_REQ_LAST_PKT   (1 << 0)
-#define TXREQ_FLAGS_IOVEC_LAST_PKT (1 << 0)
+#define TXREQ_FLAGS_REQ_LAST_PKT BIT(0)
+#define TXREQ_FLAGS_IOVEC_LAST_PKT BIT(0)
 
 #define SDMA_REQ_IN_USE     0
 #define SDMA_REQ_FOR_THREAD 1
@@ -156,9 +156,9 @@ MODULE_PARM_DESC(sdma_comp_size, "Size of User SDMA completion ring. Default: 12
 #define SDMA_REQ_HAS_ERROR  4
 #define SDMA_REQ_DONE_ERROR 5
 
-#define SDMA_PKT_Q_INACTIVE (1 << 0)
-#define SDMA_PKT_Q_ACTIVE   (1 << 1)
-#define SDMA_PKT_Q_DEFERRED (1 << 2)
+#define SDMA_PKT_Q_INACTIVE BIT(0)
+#define SDMA_PKT_Q_ACTIVE   BIT(1)
+#define SDMA_PKT_Q_DEFERRED BIT(2)
 
 /*
  * Maximum retry attempts to submit a TX request
@@ -214,12 +214,6 @@ struct user_sdma_request {
 	 */
 	u8 omfactor;
 	/*
-	 * pointer to the user's task_struct. We are going to
-	 * get a reference to it so we can process io vectors
-	 * at a later time.
-	 */
-	struct task_struct *user_proc;
-	/*
 	 * pointer to the user's mm_struct. We are going to
 	 * get a reference to it so it doesn't get freed
 	 * since we might not be in process context when we
@@ -245,9 +239,13 @@ struct user_sdma_request {
 	u16 tididx;
 	u32 sent;
 	u64 seqnum;
-	spinlock_t list_lock;
 	struct list_head txps;
+	spinlock_t txcmp_lock;  /* protect txcmp list */
+	struct list_head txcmp;
 	unsigned long flags;
+	/* status of the last txreq completed */
+	int status;
+	struct work_struct worker;
 };
 
 /*
@@ -260,6 +258,7 @@ struct user_sdma_txreq {
 	/* Packet header for the txreq */
 	struct hfi1_pkt_header hdr;
 	struct sdma_txreq txreq;
+	struct list_head list;
 	struct user_sdma_request *req;
 	struct {
 		struct user_sdma_iovec *vec;
@@ -282,10 +281,12 @@ struct user_sdma_txreq {
 static int user_sdma_send_pkts(struct user_sdma_request *, unsigned);
 static int num_user_pages(const struct iovec *);
 static void user_sdma_txreq_cb(struct sdma_txreq *, int, int);
+static void user_sdma_delayed_completion(struct work_struct *);
 static void user_sdma_free_request(struct user_sdma_request *);
 static int pin_vector_pages(struct user_sdma_request *,
 			    struct user_sdma_iovec *);
-static void unpin_vector_pages(struct user_sdma_iovec *);
+static void unpin_vector_pages(struct user_sdma_request *,
+			       struct user_sdma_iovec *);
 static int check_header_template(struct user_sdma_request *,
 				 struct hfi1_pkt_header *, u32, u32);
 static int set_txreq_header(struct user_sdma_request *,
@@ -352,6 +353,7 @@ static void sdma_kmem_cache_ctor(void *obj)
 
 int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt, struct file *fp)
 {
+	struct hfi1_filedata *fd;
 	int ret = 0;
 	unsigned memsize;
 	char buf[64];
@@ -365,6 +367,8 @@ int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt, struct file *fp)
 		goto done;
 	}
 
+	fd = fp->private_data;
+
 	if (!hfi1_sdma_comp_ring_size) {
 		ret = -EINVAL;
 		goto done;
@@ -384,16 +388,17 @@ int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt, struct file *fp)
 	INIT_LIST_HEAD(&pq->list);
 	pq->dd = dd;
 	pq->ctxt = uctxt->ctxt;
-	pq->subctxt = subctxt_fp(fp);
+	pq->subctxt = fd->subctxt;
 	pq->n_max_reqs = hfi1_sdma_comp_ring_size;
 	pq->state = SDMA_PKT_Q_INACTIVE;
 	atomic_set(&pq->n_reqs, 0);
+	init_waitqueue_head(&pq->wait);
 
 	iowait_init(&pq->busy, 0, NULL, defer_packet_queue,
 		    activate_packet_queue);
 	pq->reqidx = 0;
 	snprintf(buf, 64, "txreq-kmem-cache-%u-%u-%u", dd->unit, uctxt->ctxt,
-		 subctxt_fp(fp));
+		 fd->subctxt);
 	pq->txreq_cache = kmem_cache_create(buf,
 			       sizeof(struct user_sdma_txreq),
 					    L1_CACHE_BYTES,
@@ -404,7 +409,7 @@ int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt, struct file *fp)
 			   uctxt->ctxt);
 		goto pq_txreq_nomem;
 	}
-	user_sdma_pkt_fp(fp) = pq;
+	fd->pq = pq;
 	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
 	if (!cq)
 		goto cq_nomem;
@@ -416,7 +421,7 @@ int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *uctxt, struct file *fp)
 		goto cq_comps_nomem;
 
 	cq->nentries = hfi1_sdma_comp_ring_size;
-	user_sdma_comp_fp(fp) = cq;
+	fd->cq = cq;
 
 	spin_lock_irqsave(&uctxt->sdma_qlock, flags);
 	list_add(&pq->list, &uctxt->sdma_queues);
@@ -431,7 +436,7 @@ pq_txreq_nomem:
 	kfree(pq->reqs);
 pq_reqs_nomem:
 	kfree(pq);
-	user_sdma_pkt_fp(fp) = NULL;
+	fd->pq = NULL;
 pq_nomem:
 	ret = -ENOMEM;
 done:
@@ -448,26 +453,16 @@ int hfi1_user_sdma_free_queues(struct hfi1_filedata *fd)
 		  uctxt->ctxt, fd->subctxt);
 	pq = fd->pq;
 	if (pq) {
-		u16 i, j;
-
 		spin_lock_irqsave(&uctxt->sdma_qlock, flags);
 		if (!list_empty(&pq->list))
 			list_del_init(&pq->list);
 		spin_unlock_irqrestore(&uctxt->sdma_qlock, flags);
 		iowait_sdma_drain(&pq->busy);
-		if (pq->reqs) {
-			for (i = 0, j = 0; i < atomic_read(&pq->n_reqs) &&
-				     j < pq->n_max_reqs; j++) {
-				struct user_sdma_request *req = &pq->reqs[j];
-
-				if (test_bit(SDMA_REQ_IN_USE, &req->flags)) {
-					set_comp_state(req, ERROR, -ECOMM);
-					user_sdma_free_request(req);
-					i++;
-				}
-			}
-			kfree(pq->reqs);
-		}
+		/* Wait until all requests have been freed. */
+		wait_event_interruptible(
+			pq->wait,
+			(ACCESS_ONCE(pq->state) == SDMA_PKT_Q_INACTIVE));
+		kfree(pq->reqs);
 		kmem_cache_destroy(pq->txreq_cache);
 		kfree(pq);
 		fd->pq = NULL;
@@ -485,9 +480,10 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 				   unsigned long dim, unsigned long *count)
 {
 	int ret = 0, i = 0, sent;
-	struct hfi1_ctxtdata *uctxt = ctxt_fp(fp);
-	struct hfi1_user_sdma_pkt_q *pq = user_sdma_pkt_fp(fp);
-	struct hfi1_user_sdma_comp_q *cq = user_sdma_comp_fp(fp);
+	struct hfi1_filedata *fd = fp->private_data;
+	struct hfi1_ctxtdata *uctxt = fd->uctxt;
+	struct hfi1_user_sdma_pkt_q *pq = fd->pq;
+	struct hfi1_user_sdma_comp_q *cq = fd->cq;
 	struct hfi1_devdata *dd = pq->dd;
 	unsigned long idx = 0;
 	u8 pcount = initial_pkt_count;
@@ -499,40 +495,36 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 		hfi1_cdbg(
 		   SDMA,
 		   "[%u:%u:%u] First vector not big enough for header %lu/%lu",
-		   dd->unit, uctxt->ctxt, subctxt_fp(fp),
+		   dd->unit, uctxt->ctxt, fd->subctxt,
 		   iovec[idx].iov_len, sizeof(info) + sizeof(req->hdr));
-		ret = -EINVAL;
-		goto done;
+		return -EINVAL;
 	}
 	ret = copy_from_user(&info, iovec[idx].iov_base, sizeof(info));
 	if (ret) {
 		hfi1_cdbg(SDMA, "[%u:%u:%u] Failed to copy info QW (%d)",
-			  dd->unit, uctxt->ctxt, subctxt_fp(fp), ret);
-		ret = -EFAULT;
-		goto done;
+			  dd->unit, uctxt->ctxt, fd->subctxt, ret);
+		return -EFAULT;
 	}
-	trace_hfi1_sdma_user_reqinfo(dd, uctxt->ctxt, subctxt_fp(fp),
+	trace_hfi1_sdma_user_reqinfo(dd, uctxt->ctxt, fd->subctxt,
 				     (u16 *)&info);
 	if (cq->comps[info.comp_idx].status == QUEUED) {
 		hfi1_cdbg(SDMA, "[%u:%u:%u] Entry %u is in QUEUED state",
-			  dd->unit, uctxt->ctxt, subctxt_fp(fp),
+			  dd->unit, uctxt->ctxt, fd->subctxt,
 			  info.comp_idx);
-		ret = -EBADSLT;
-		goto done;
+		return -EBADSLT;
 	}
 	if (!info.fragsize) {
 		hfi1_cdbg(SDMA,
 			  "[%u:%u:%u:%u] Request does not specify fragsize",
-			  dd->unit, uctxt->ctxt, subctxt_fp(fp), info.comp_idx);
-		ret = -EINVAL;
-		goto done;
+			  dd->unit, uctxt->ctxt, fd->subctxt, info.comp_idx);
+		return -EINVAL;
 	}
 	/*
 	 * We've done all the safety checks that we can up to this point,
 	 * "allocate" the request entry.
 	 */
 	hfi1_cdbg(SDMA, "[%u:%u:%u] Using req/comp entry %u\n", dd->unit,
-		  uctxt->ctxt, subctxt_fp(fp), info.comp_idx);
+		  uctxt->ctxt, fd->subctxt, info.comp_idx);
 	req = pq->reqs + info.comp_idx;
 	memset(req, 0, sizeof(*req));
 	/* Mark the request as IN_USE before we start filling it in. */
@@ -540,8 +532,12 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 	req->data_iovs = req_iovcnt(info.ctrl) - 1;
 	req->pq = pq;
 	req->cq = cq;
+	req->status = -1;
 	INIT_LIST_HEAD(&req->txps);
-	spin_lock_init(&req->list_lock);
+	INIT_LIST_HEAD(&req->txcmp);
+	INIT_WORK(&req->worker, user_sdma_delayed_completion);
+
+	spin_lock_init(&req->txcmp_lock);
 	memcpy(&req->info, &info, sizeof(info));
 
 	if (req_opcode(info.ctrl) == EXPECTED)
@@ -550,8 +546,7 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 	if (!info.npkts || req->data_iovs > MAX_VECTORS_PER_REQ) {
 		SDMA_DBG(req, "Too many vectors (%u/%u)", req->data_iovs,
 			 MAX_VECTORS_PER_REQ);
-		ret = -EINVAL;
-		goto done;
+		return -EINVAL;
 	}
 	/* Copy the header from the user buffer */
 	ret = copy_from_user(&req->hdr, iovec[idx].iov_base + sizeof(info),
@@ -659,7 +654,7 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 
 	/* Have to select the engine */
 	req->sde = sdma_select_engine_vl(dd,
-					 (u32)(uctxt->ctxt + subctxt_fp(fp)),
+					 (u32)(uctxt->ctxt + fd->subctxt),
 					 vl);
 	if (!req->sde || !sdma_running(req->sde)) {
 		ret = -ECOMM;
@@ -681,18 +676,16 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 	sent = user_sdma_send_pkts(req, pcount);
 	if (unlikely(sent < 0)) {
 		if (sent != -EBUSY) {
-			ret = sent;
-			goto send_err;
+			req->status = sent;
+			set_comp_state(req, ERROR, req->status);
+			return sent;
 		} else
 			sent = 0;
 	}
 	atomic_inc(&pq->n_reqs);
+	xchg(&pq->state, SDMA_PKT_Q_ACTIVE);
 
 	if (sent < req->info.npkts) {
-		/* Take the references to the user's task and mm_struct */
-		get_task_struct(current);
-		req->user_proc = current;
-
 		/*
 		 * This is a somewhat blocking send implementation.
 		 * The driver will block the caller until all packets of the
@@ -702,8 +695,10 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 		while (!test_bit(SDMA_REQ_SEND_DONE, &req->flags)) {
 			ret = user_sdma_send_pkts(req, pcount);
 			if (ret < 0) {
-				if (ret != -EBUSY)
-					goto send_err;
+				if (ret != -EBUSY) {
+					req->status = ret;
+					return ret;
+				}
 				wait_event_interruptible_timeout(
 					pq->busy.wait_dma,
 					(pq->state == SDMA_PKT_Q_ACTIVE),
@@ -713,14 +708,10 @@ int hfi1_user_sdma_process_request(struct file *fp, struct iovec *iovec,
 		}
 
 	}
-	ret = 0;
 	*count += idx;
-	goto done;
-send_err:
-	set_comp_state(req, ERROR, ret);
+	return 0;
 free_req:
 	user_sdma_free_request(req);
-done:
 	return ret;
 }
 
@@ -778,20 +769,24 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 	struct hfi1_user_sdma_pkt_q *pq = NULL;
 	struct user_sdma_iovec *iovec = NULL;
 
-	if (!req->pq) {
-		ret = -EINVAL;
-		goto done;
-	}
+	if (!req->pq)
+		return -EINVAL;
 
 	pq = req->pq;
 
+	/* If tx completion has reported an error, we are done. */
+	if (test_bit(SDMA_REQ_HAS_ERROR, &req->flags)) {
+		set_bit(SDMA_REQ_DONE_ERROR, &req->flags);
+		return -EFAULT;
+	}
+
 	/*
 	 * Check if we might have sent the entire request already
 	 */
 	if (unlikely(req->seqnum == req->info.npkts)) {
 		if (!list_empty(&req->txps))
 			goto dosend;
-		goto done;
+		return ret;
 	}
 
 	if (!maxpkts || maxpkts > req->info.npkts - req->seqnum)
@@ -808,19 +803,18 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 		 */
 		if (test_bit(SDMA_REQ_HAS_ERROR, &req->flags)) {
 			set_bit(SDMA_REQ_DONE_ERROR, &req->flags);
-			ret = -EFAULT;
-			goto done;
+			return -EFAULT;
 		}
 
 		tx = kmem_cache_alloc(pq->txreq_cache, GFP_KERNEL);
-		if (!tx) {
-			ret = -ENOMEM;
-			goto done;
-		}
+		if (!tx)
+			return -ENOMEM;
+
 		tx->flags = 0;
 		tx->req = req;
 		tx->busycount = 0;
 		tx->idx = -1;
+		INIT_LIST_HEAD(&tx->list);
 		memset(tx->iovecs, 0, sizeof(tx->iovecs));
 
 		if (req->seqnum == req->info.npkts - 1)
@@ -945,9 +939,8 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 			if (ret) {
 				int i;
 
-				dd_dev_err(pq->dd,
-					   "SDMA txreq add page failed %d\n",
-					   ret);
+				SDMA_DBG(req, "SDMA txreq add page failed %d\n",
+					 ret);
 				/* Mark all assigned vectors as complete so they
 				 * are unpinned in the callback. */
 				for (i = tx->idx; i >= 0; i--) {
@@ -1017,12 +1010,12 @@ dosend:
 			if (test_bit(SDMA_REQ_HAVE_AHG, &req->flags))
 				sdma_ahg_free(req->sde, req->ahg_idx);
 		}
-	goto done;
+	return ret;
+
 free_txreq:
 	sdma_txclean(pq->dd, &tx->txreq);
 free_tx:
 	kmem_cache_free(pq->txreq_cache, tx);
-done:
 	return ret;
 }
 
@@ -1041,52 +1034,58 @@ static inline int num_user_pages(const struct iovec *iov)
 
 static int pin_vector_pages(struct user_sdma_request *req,
 			    struct user_sdma_iovec *iovec) {
-	int ret = 0;
-	unsigned pinned;
+	int pinned, npages;
 
-	iovec->npages = num_user_pages(&iovec->iov);
-	iovec->pages = kcalloc(iovec->npages, sizeof(*iovec->pages),
-			       GFP_KERNEL);
+	npages = num_user_pages(&iovec->iov);
+	iovec->pages = kcalloc(npages, sizeof(*iovec->pages), GFP_KERNEL);
 	if (!iovec->pages) {
 		SDMA_DBG(req, "Failed page array alloc");
-		ret = -ENOMEM;
-		goto done;
+		return -ENOMEM;
 	}
-	/* If called by the kernel thread, use the user's mm */
-	if (current->flags & PF_KTHREAD)
-		use_mm(req->user_proc->mm);
-	pinned = get_user_pages_fast(
-		(unsigned long)iovec->iov.iov_base,
-		iovec->npages, 0, iovec->pages);
-	/* If called by the kernel thread, unuse the user's mm */
-	if (current->flags & PF_KTHREAD)
-		unuse_mm(req->user_proc->mm);
-	if (pinned != iovec->npages) {
-		SDMA_DBG(req, "Failed to pin pages (%u/%u)", pinned,
-			 iovec->npages);
-		ret = -EFAULT;
-		goto pfree;
+
+	/*
+	 * Get a reference to the process's mm so we can use it when
+	 * unpinning the io vectors.
+	 */
+	req->pq->user_mm = get_task_mm(current);
+
+	pinned = hfi1_acquire_user_pages((unsigned long)iovec->iov.iov_base,
+					 npages, 0, iovec->pages);
+
+	if (pinned < 0)
+		return pinned;
+
+	iovec->npages = pinned;
+	if (pinned != npages) {
+		SDMA_DBG(req, "Failed to pin pages (%d/%u)", pinned, npages);
+		unpin_vector_pages(req, iovec);
+		return -EFAULT;
 	}
-	goto done;
-pfree:
-	unpin_vector_pages(iovec);
-done:
-	return ret;
+	return 0;
 }
 
-static void unpin_vector_pages(struct user_sdma_iovec *iovec)
+static void unpin_vector_pages(struct user_sdma_request *req,
+			       struct user_sdma_iovec *iovec)
 {
-	unsigned i;
+	/*
+	 * Unpinning is done through the workqueue so use the
+	 * process's mm if we have a reference to it.
+	 */
+	if ((current->flags & PF_KTHREAD) && req->pq->user_mm)
+		use_mm(req->pq->user_mm);
 
-	if (ACCESS_ONCE(iovec->offset) != iovec->iov.iov_len) {
-		hfi1_cdbg(SDMA,
-			  "the complete vector has not been sent yet %llu %zu",
-			  iovec->offset, iovec->iov.iov_len);
-		return;
+	hfi1_release_user_pages(iovec->pages, iovec->npages, 0);
+
+	/*
+	 * Unuse the user's mm (see above) and release the
+	 * reference to it.
+	 */
+	if (req->pq->user_mm) {
+		if (current->flags & PF_KTHREAD)
+			unuse_mm(req->pq->user_mm);
+		mmput(req->pq->user_mm);
 	}
-	for (i = 0; i < iovec->npages; i++)
-		if (iovec->pages[i])
-			put_page(iovec->pages[i]);
+
 	kfree(iovec->pages);
 	iovec->pages = NULL;
 	iovec->npages = 0;
@@ -1354,54 +1353,116 @@ static int set_txreq_header_ahg(struct user_sdma_request *req,
 	return diff;
 }
 
+/*
+ * SDMA tx request completion callback. Called when the SDMA progress
+ * state machine gets notification that the SDMA descriptors for this
+ * tx request have been processed by the DMA engine. Called in
+ * interrupt context.
+ */
 static void user_sdma_txreq_cb(struct sdma_txreq *txreq, int status,
 			       int drain)
 {
 	struct user_sdma_txreq *tx =
 		container_of(txreq, struct user_sdma_txreq, txreq);
-	struct user_sdma_request *req = tx->req;
-	struct hfi1_user_sdma_pkt_q *pq = req ? req->pq : NULL;
-	u64 tx_seqnum;
+	struct user_sdma_request *req;
+	bool defer;
+	int i;
 
-	if (unlikely(!req || !pq))
+	if (!tx->req)
 		return;
 
-	/* If we have any io vectors associated with this txreq,
-	 * check whether they need to be 'freed'. */
-	if (tx->idx != -1) {
-		int i;
+	req = tx->req;
+	/*
+	 * If this is the callback for the last packet of the request,
+	 * queue up the request for clean up.
+	 */
+	defer = (tx->seqnum == req->info.npkts - 1);
 
-		for (i = tx->idx; i >= 0; i--) {
-			if (tx->iovecs[i].flags & TXREQ_FLAGS_IOVEC_LAST_PKT)
-				unpin_vector_pages(tx->iovecs[i].vec);
+	/*
+	 * If we have any io vectors associated with this txreq,
+	 * check whether they need to be 'freed'. We can't free them
+	 * here because the unpin function needs to be able to sleep.
+	 */
+	for (i = tx->idx; i >= 0; i--) {
+		if (tx->iovecs[i].flags & TXREQ_FLAGS_IOVEC_LAST_PKT) {
+			defer = true;
+			break;
 		}
 	}
 
-	tx_seqnum = tx->seqnum;
-	kmem_cache_free(pq->txreq_cache, tx);
-
+	req->status = status;
 	if (status != SDMA_TXREQ_S_OK) {
-		dd_dev_err(pq->dd, "SDMA completion with error %d", status);
-		set_comp_state(req, ERROR, status);
+		SDMA_DBG(req, "SDMA completion with error %d",
+			 status);
 		set_bit(SDMA_REQ_HAS_ERROR, &req->flags);
-		/* Do not free the request until the sender loop has ack'ed
-		 * the error and we've seen all txreqs. */
-		if (tx_seqnum == ACCESS_ONCE(req->seqnum) &&
-		    test_bit(SDMA_REQ_DONE_ERROR, &req->flags)) {
-			atomic_dec(&pq->n_reqs);
-			user_sdma_free_request(req);
-		}
+		defer = true;
+	}
+
+	/*
+	 * Defer the clean up of the iovectors and the request until later
+	 * so it can be done outside of interrupt context.
+	 */
+	if (defer) {
+		spin_lock(&req->txcmp_lock);
+		list_add_tail(&tx->list, &req->txcmp);
+		spin_unlock(&req->txcmp_lock);
+		schedule_work(&req->worker);
 	} else {
-		if (tx_seqnum == req->info.npkts - 1) {
-			/* We've sent and completed all packets in this
-			 * request. Signal completion to the user */
-			atomic_dec(&pq->n_reqs);
-			set_comp_state(req, COMPLETE, 0);
-			user_sdma_free_request(req);
+		kmem_cache_free(req->pq->txreq_cache, tx);
+	}
+}
+
+static void user_sdma_delayed_completion(struct work_struct *work)
+{
+	struct user_sdma_request *req =
+		container_of(work, struct user_sdma_request, worker);
+	struct hfi1_user_sdma_pkt_q *pq = req->pq;
+	struct user_sdma_txreq *tx = NULL;
+	unsigned long flags;
+	u64 seqnum;
+	int i;
+
+	while (1) {
+		spin_lock_irqsave(&req->txcmp_lock, flags);
+		if (!list_empty(&req->txcmp)) {
+			tx = list_first_entry(&req->txcmp,
+					      struct user_sdma_txreq, list);
+			list_del(&tx->list);
+		}
+		spin_unlock_irqrestore(&req->txcmp_lock, flags);
+		if (!tx)
+			break;
+
+		for (i = tx->idx; i >= 0; i--)
+			if (tx->iovecs[i].flags & TXREQ_FLAGS_IOVEC_LAST_PKT)
+				unpin_vector_pages(req, tx->iovecs[i].vec);
+
+		seqnum = tx->seqnum;
+		kmem_cache_free(pq->txreq_cache, tx);
+		tx = NULL;
+
+		if (req->status != SDMA_TXREQ_S_OK) {
+			if (seqnum == ACCESS_ONCE(req->seqnum) &&
+			    test_bit(SDMA_REQ_DONE_ERROR, &req->flags)) {
+				atomic_dec(&pq->n_reqs);
+				set_comp_state(req, ERROR, req->status);
+				user_sdma_free_request(req);
+				break;
+			}
+		} else {
+			if (seqnum == req->info.npkts - 1) {
+				atomic_dec(&pq->n_reqs);
+				set_comp_state(req, COMPLETE, 0);
+				user_sdma_free_request(req);
+				break;
+			}
 		}
 	}
-	if (!atomic_read(&pq->n_reqs))
+
+	if (!atomic_read(&pq->n_reqs)) {
 		xchg(&pq->state, SDMA_PKT_Q_INACTIVE);
+		wake_up(&pq->wait);
+	}
 }
 
 static void user_sdma_free_request(struct user_sdma_request *req)
@@ -1422,10 +1483,8 @@ static void user_sdma_free_request(struct user_sdma_request *req)
 
 		for (i = 0; i < req->data_iovs; i++)
 			if (req->iovs[i].npages && req->iovs[i].pages)
-				unpin_vector_pages(&req->iovs[i]);
+				unpin_vector_pages(req, &req->iovs[i]);
 	}
-	if (req->user_proc)
-		put_task_struct(req->user_proc);
 	kfree(req->tids);
 	clear_bit(SDMA_REQ_IN_USE, &req->flags);
 }
diff --git a/drivers/staging/rdma/hfi1/user_sdma.h b/drivers/staging/rdma/hfi1/user_sdma.h
index fa4422553e23..0afa28508a8a 100644
--- a/drivers/staging/rdma/hfi1/user_sdma.h
+++ b/drivers/staging/rdma/hfi1/user_sdma.h
@@ -52,15 +52,7 @@
 
 #include "common.h"
 #include "iowait.h"
-
-#define EXP_TID_TIDLEN_MASK   0x7FFULL
-#define EXP_TID_TIDLEN_SHIFT  0
-#define EXP_TID_TIDCTRL_MASK  0x3ULL
-#define EXP_TID_TIDCTRL_SHIFT 20
-#define EXP_TID_TIDIDX_MASK   0x7FFULL
-#define EXP_TID_TIDIDX_SHIFT  22
-#define EXP_TID_GET(tid, field)	\
-	(((tid) >> EXP_TID_TID##field##_SHIFT) & EXP_TID_TID##field##_MASK)
+#include "user_exp_rcv.h"
 
 extern uint extended_psn;
 
@@ -76,6 +68,8 @@ struct hfi1_user_sdma_pkt_q {
 	struct user_sdma_request *reqs;
 	struct iowait busy;
 	unsigned state;
+	wait_queue_head_t wait;
+	struct mm_struct *user_mm;
 };
 
 struct hfi1_user_sdma_comp_q {
diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c
index 9beb0aa876f0..ef0feaa684a4 100644
--- a/drivers/staging/rdma/hfi1/verbs.c
+++ b/drivers/staging/rdma/hfi1/verbs.c
@@ -162,6 +162,8 @@ static inline struct hfi1_ucontext *to_iucontext(struct ib_ucontext
 	return container_of(ibucontext, struct hfi1_ucontext, ibucontext);
 }
 
+static inline void _hfi1_schedule_send(struct hfi1_qp *qp);
+
 /*
  * Translate ib_wr_opcode into ib_wc_opcode.
  */
@@ -509,9 +511,9 @@ static int post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 		nreq++;
 	}
 bail:
-	if (nreq && !call_send)
-		hfi1_schedule_send(qp);
 	spin_unlock_irqrestore(&qp->s_lock, flags);
+	if (nreq && !call_send)
+		_hfi1_schedule_send(qp);
 	if (nreq && call_send)
 		hfi1_do_send(&qp->s_iowait.iowork);
 	return err;
@@ -999,17 +1001,19 @@ bail_txadd:
 	return ret;
 }
 
-int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
-			u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			u32 plen, u32 dwords, u64 pbc)
+int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			u64 pbc)
 {
-	struct hfi1_ibdev *dev = to_idev(qp->ibqp.device);
-	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
-	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct ahg_ib_header *ahdr = qp->s_hdr;
+	u32 hdrwords = qp->s_hdrwords;
+	struct hfi1_sge_state *ss = qp->s_cur_sge;
+	u32 len = qp->s_cur_size;
+	u32 plen = hdrwords + ((len + 3) >> 2) + 2; /* includes pbc */
+	struct hfi1_ibdev *dev = ps->dev;
+	struct hfi1_pportdata *ppd = ps->ppd;
 	struct verbs_txreq *tx;
 	struct sdma_txreq *stx;
 	u64 pbc_flags = 0;
-	struct sdma_engine *sde;
 	u8 sc5 = qp->s_sc;
 	int ret;
 
@@ -1030,12 +1034,7 @@ int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
 	if (IS_ERR(tx))
 		goto bail_tx;
 
-	if (!qp->s_hdr->sde) {
-		tx->sde = sde = qp_to_sdma_engine(qp, sc5);
-		if (!sde)
-			goto bail_no_sde;
-	} else
-		tx->sde = sde = qp->s_hdr->sde;
+	tx->sde = qp->s_sde;
 
 	if (likely(pbc == 0)) {
 		u32 vl = sc_to_vlt(dd_from_ibdev(qp->ibqp.device), sc5);
@@ -1050,17 +1049,15 @@ int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
 	if (qp->s_rdma_mr)
 		qp->s_rdma_mr = NULL;
 	tx->hdr_dwords = hdrwords + 2;
-	ret = build_verbs_tx_desc(sde, ss, len, tx, ahdr, pbc);
+	ret = build_verbs_tx_desc(tx->sde, ss, len, tx, ahdr, pbc);
 	if (unlikely(ret))
 		goto bail_build;
 	trace_output_ibhdr(dd_from_ibdev(qp->ibqp.device), &ahdr->ibh);
-	ret =  sdma_send_txreq(sde, &qp->s_iowait, &tx->txreq);
+	ret =  sdma_send_txreq(tx->sde, &qp->s_iowait, &tx->txreq);
 	if (unlikely(ret == -ECOMM))
 		goto bail_ecomm;
 	return ret;
 
-bail_no_sde:
-	hfi1_put_txreq(tx);
 bail_ecomm:
 	/* The current one got "sent" */
 	return 0;
@@ -1126,12 +1123,16 @@ struct send_context *qp_to_send_context(struct hfi1_qp *qp, u8 sc5)
 	return dd->vld[vl].sc;
 }
 
-int hfi1_verbs_send_pio(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
-			u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			u32 plen, u32 dwords, u64 pbc)
+int hfi1_verbs_send_pio(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			u64 pbc)
 {
-	struct hfi1_ibport *ibp = to_iport(qp->ibqp.device, qp->port_num);
-	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct ahg_ib_header *ahdr = qp->s_hdr;
+	u32 hdrwords = qp->s_hdrwords;
+	struct hfi1_sge_state *ss = qp->s_cur_sge;
+	u32 len = qp->s_cur_size;
+	u32 dwords = (len + 3) >> 2;
+	u32 plen = hdrwords + dwords + 2; /* includes pbc */
+	struct hfi1_pportdata *ppd = ps->ppd;
 	u32 *hdr = (u32 *)&ahdr->ibh;
 	u64 pbc_flags = 0;
 	u32 sc5;
@@ -1303,23 +1304,18 @@ bad:
 /**
  * hfi1_verbs_send - send a packet
  * @qp: the QP to send on
- * @ahdr: the packet header
- * @hdrwords: the number of 32-bit words in the header
- * @ss: the SGE to send
- * @len: the length of the packet in bytes
+ * @ps: the state of the packet to send
  *
  * Return zero if packet is sent or queued OK.
  * Return non-zero and clear qp->s_flags HFI1_S_BUSY otherwise.
  */
-int hfi1_verbs_send(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
-		    u32 hdrwords, struct hfi1_sge_state *ss, u32 len)
+int hfi1_verbs_send(struct hfi1_qp *qp, struct hfi1_pkt_state *ps)
 {
 	struct hfi1_devdata *dd = dd_from_ibdev(qp->ibqp.device);
-	u32 plen;
+	struct ahg_ib_header *ahdr = qp->s_hdr;
 	int ret;
 	int pio = 0;
 	unsigned long flags = 0;
-	u32 dwords = (len + 3) >> 2;
 
 	/*
 	 * VL15 packets (IB_QPT_SMI) will always use PIO, so we
@@ -1350,23 +1346,16 @@ int hfi1_verbs_send(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
 		return -EINVAL;
 	}
 
-	/*
-	 * Calculate the send buffer trigger address.
-	 * The +2 counts for the pbc control qword
-	 */
-	plen = hdrwords + dwords + 2;
-
 	if (pio) {
-		ret = dd->process_pio_send(
-			qp, ahdr, hdrwords, ss, len, plen, dwords, 0);
+		ret = dd->process_pio_send(qp, ps, 0);
 	} else {
 #ifdef CONFIG_SDMA_VERBOSITY
 		dd_dev_err(dd, "CONFIG SDMA %s:%d %s()\n",
 			   slashstrip(__FILE__), __LINE__, __func__);
-		dd_dev_err(dd, "SDMA hdrwords = %u, len = %u\n", hdrwords, len);
+		dd_dev_err(dd, "SDMA hdrwords = %u, len = %u\n", qp->s_hdrwords,
+			   qp->s_cur_size);
 #endif
-		ret = dd->process_dma_send(
-			qp, ahdr, hdrwords, ss, len, plen, dwords, 0);
+		ret = dd->process_dma_send(qp, ps, 0);
 	}
 
 	return ret;
@@ -2135,28 +2124,43 @@ void hfi1_unregister_ib_device(struct hfi1_devdata *dd)
 	vfree(dev->lk_table.table);
 }
 
-/*
- * This must be called with s_lock held.
- */
-void hfi1_schedule_send(struct hfi1_qp *qp)
-{
-	if (hfi1_send_ok(qp)) {
-		struct hfi1_ibport *ibp =
-			to_iport(qp->ibqp.device, qp->port_num);
-		struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
-
-		iowait_schedule(&qp->s_iowait, ppd->hfi1_wq);
-	}
-}
-
 void hfi1_cnp_rcv(struct hfi1_packet *packet)
 {
 	struct hfi1_ibport *ibp = &packet->rcd->ppd->ibport_data;
-
-	if (packet->qp->ibqp.qp_type == IB_QPT_UC)
-		hfi1_uc_rcv(packet);
-	else if (packet->qp->ibqp.qp_type == IB_QPT_UD)
-		hfi1_ud_rcv(packet);
-	else
+	struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
+	struct hfi1_ib_header *hdr = packet->hdr;
+	struct hfi1_qp *qp = packet->qp;
+	u32 lqpn, rqpn = 0;
+	u16 rlid = 0;
+	u8 sl, sc5, sc4_bit, svc_type;
+	bool sc4_set = has_sc4_bit(packet);
+
+	switch (packet->qp->ibqp.qp_type) {
+	case IB_QPT_UC:
+		rlid = qp->remote_ah_attr.dlid;
+		rqpn = qp->remote_qpn;
+		svc_type = IB_CC_SVCTYPE_UC;
+		break;
+	case IB_QPT_RC:
+		rlid = qp->remote_ah_attr.dlid;
+		rqpn = qp->remote_qpn;
+		svc_type = IB_CC_SVCTYPE_RC;
+		break;
+	case IB_QPT_SMI:
+	case IB_QPT_GSI:
+	case IB_QPT_UD:
+		svc_type = IB_CC_SVCTYPE_UD;
+		break;
+	default:
 		ibp->n_pkt_drops++;
+		return;
+	}
+
+	sc4_bit = sc4_set << 4;
+	sc5 = (be16_to_cpu(hdr->lrh[0]) >> 12) & 0xf;
+	sc5 |= sc4_bit;
+	sl = ibp->sc_to_sl[sc5];
+	lqpn = qp->ibqp.qp_num;
+
+	process_becn(ppd, sl, rlid, lqpn, rqpn, svc_type);
 }
diff --git a/drivers/staging/rdma/hfi1/verbs.h b/drivers/staging/rdma/hfi1/verbs.h
index 041ad07ee699..72106e5362b9 100644
--- a/drivers/staging/rdma/hfi1/verbs.h
+++ b/drivers/staging/rdma/hfi1/verbs.h
@@ -120,9 +120,9 @@ struct hfi1_packet;
 
 #define HFI1_VENDOR_IPG		cpu_to_be16(0xFFA0)
 
-#define IB_BTH_REQ_ACK		(1 << 31)
-#define IB_BTH_SOLICITED	(1 << 23)
-#define IB_BTH_MIG_REQ		(1 << 22)
+#define IB_BTH_REQ_ACK		BIT(31)
+#define IB_BTH_SOLICITED	BIT(23)
+#define IB_BTH_MIG_REQ		BIT(22)
 
 #define IB_GRH_VERSION		6
 #define IB_GRH_VERSION_MASK	0xF
@@ -441,7 +441,8 @@ struct hfi1_qp {
 	struct hfi1_swqe *s_wq;  /* send work queue */
 	struct hfi1_mmap_info *ip;
 	struct ahg_ib_header *s_hdr;     /* next packet header to send */
-	u8 s_sc;			/* SC[0..4] for next packet */
+	/* sc for UC/RC QPs - based on ah for UD */
+	u8 s_sc;
 	unsigned long timeout_jiffies;  /* computed from timeout */
 
 	enum ib_mtu path_mtu;
@@ -489,6 +490,7 @@ struct hfi1_qp {
 	u32 r_psn;              /* expected rcv packet sequence number */
 	u32 r_msn;              /* message sequence number */
 
+	u8 r_adefered;         /* number of acks defered */
 	u8 r_state;             /* opcode of last packet received */
 	u8 r_flags;
 	u8 r_head_ack_queue;    /* index into s_ack_queue[] */
@@ -544,6 +546,16 @@ struct hfi1_qp {
 };
 
 /*
+ * This structure is used to hold commonly lookedup and computed values during
+ * the send engine progress.
+ */
+struct hfi1_pkt_state {
+	struct hfi1_ibdev *dev;
+	struct hfi1_ibport *ibp;
+	struct hfi1_pportdata *ppd;
+};
+
+/*
  * Atomic bit definitions for r_aflags.
  */
 #define HFI1_R_WRID_VALID        0
@@ -552,11 +564,13 @@ struct hfi1_qp {
 /*
  * Bit definitions for r_flags.
  */
-#define HFI1_R_REUSE_SGE 0x01
-#define HFI1_R_RDMAR_SEQ 0x02
-#define HFI1_R_RSP_NAK   0x04
-#define HFI1_R_RSP_SEND  0x08
-#define HFI1_R_COMM_EST  0x10
+#define HFI1_R_REUSE_SGE       0x01
+#define HFI1_R_RDMAR_SEQ       0x02
+/* defer ack until end of interrupt session */
+#define HFI1_R_RSP_DEFERED_ACK 0x04
+/* relay ack to send engine */
+#define HFI1_R_RSP_SEND        0x08
+#define HFI1_R_COMM_EST        0x10
 
 /*
  * Bit definitions for s_flags.
@@ -846,9 +860,8 @@ static inline int hfi1_send_ok(struct hfi1_qp *qp)
 /*
  * This must be called with s_lock held.
  */
-void hfi1_schedule_send(struct hfi1_qp *qp);
 void hfi1_bad_pqkey(struct hfi1_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
-		    u32 qp1, u32 qp2, __be16 lid1, __be16 lid2);
+		    u32 qp1, u32 qp2, u16 lid1, u16 lid2);
 void hfi1_cap_mask_chg(struct hfi1_ibport *ibp);
 void hfi1_sys_guid_chg(struct hfi1_ibport *ibp);
 void hfi1_node_desc_chg(struct hfi1_ibport *ibp);
@@ -927,8 +940,7 @@ int hfi1_mcast_tree_empty(struct hfi1_ibport *ibp);
 struct verbs_txreq;
 void hfi1_put_txreq(struct verbs_txreq *tx);
 
-int hfi1_verbs_send(struct hfi1_qp *qp, struct ahg_ib_header *ahdr,
-		    u32 hdrwords, struct hfi1_sge_state *ss, u32 len);
+int hfi1_verbs_send(struct hfi1_qp *qp, struct hfi1_pkt_state *ps);
 
 void hfi1_copy_sge(struct hfi1_sge_state *ss, void *data, u32 length,
 		   int release);
@@ -1069,8 +1081,6 @@ int hfi1_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
 
 int hfi1_get_rwqe(struct hfi1_qp *qp, int wr_id_only);
 
-void hfi1_migrate_qp(struct hfi1_qp *qp);
-
 int hfi1_ruc_check_hdr(struct hfi1_ibport *ibp, struct hfi1_ib_header *hdr,
 		       int has_grh, struct hfi1_qp *qp, u32 bth0);
 
@@ -1101,13 +1111,11 @@ void hfi1_ib_rcv(struct hfi1_packet *packet);
 
 unsigned hfi1_get_npkeys(struct hfi1_devdata *);
 
-int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct ahg_ib_header *hdr,
-			u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			u32 plen, u32 dwords, u64 pbc);
+int hfi1_verbs_send_dma(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			u64 pbc);
 
-int hfi1_verbs_send_pio(struct hfi1_qp *qp, struct ahg_ib_header *hdr,
-			u32 hdrwords, struct hfi1_sge_state *ss, u32 len,
-			u32 plen, u32 dwords, u64 pbc);
+int hfi1_verbs_send_pio(struct hfi1_qp *qp, struct hfi1_pkt_state *ps,
+			u64 pbc);
 
 struct send_context *qp_to_send_context(struct hfi1_qp *qp, u8 sc5);
 
diff --git a/drivers/staging/rdma/ipath/ipath_file_ops.c b/drivers/staging/rdma/ipath/ipath_file_ops.c
index 13c3cd11ab92..6187b848b3ca 100644
--- a/drivers/staging/rdma/ipath/ipath_file_ops.c
+++ b/drivers/staging/rdma/ipath/ipath_file_ops.c
@@ -917,15 +917,15 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
 	chunk = pd->port_rcvegrbuf_chunks;
 	egrperchunk = pd->port_rcvegrbufs_perchunk;
 	size = pd->port_rcvegrbuf_size;
-	pd->port_rcvegrbuf = kmalloc(chunk * sizeof(pd->port_rcvegrbuf[0]),
-				     GFP_KERNEL);
+	pd->port_rcvegrbuf = kmalloc_array(chunk, sizeof(pd->port_rcvegrbuf[0]),
+					   GFP_KERNEL);
 	if (!pd->port_rcvegrbuf) {
 		ret = -ENOMEM;
 		goto bail;
 	}
 	pd->port_rcvegrbuf_phys =
-		kmalloc(chunk * sizeof(pd->port_rcvegrbuf_phys[0]),
-			GFP_KERNEL);
+		kmalloc_array(chunk, sizeof(pd->port_rcvegrbuf_phys[0]),
+			      GFP_KERNEL);
 	if (!pd->port_rcvegrbuf_phys) {
 		ret = -ENOMEM;
 		goto bail_rcvegrbuf;
diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index 3cdb40fea5ee..e5d29fe9d446 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -1240,11 +1240,6 @@ int rtw_acl_remove_sta(struct adapter *padapter, u8 *addr)
 	return 0;
 }
 
-static void update_bcn_fixed_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
 static void update_bcn_erpinfo_ie(struct adapter *padapter)
 {
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
@@ -1279,31 +1274,6 @@ static void update_bcn_erpinfo_ie(struct adapter *padapter)
 	}
 }
 
-static void update_bcn_htcap_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
-static void update_bcn_htinfo_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
-static void update_bcn_rsn_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
-static void update_bcn_wpa_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
-static void update_bcn_wmm_ie(struct adapter *padapter)
-{
-	DBG_88E("%s\n", __func__);
-}
-
 static void update_bcn_wps_ie(struct adapter *padapter)
 {
 	u8 *pwps_ie = NULL, *pwps_ie_src;
@@ -1354,22 +1324,12 @@ static void update_bcn_wps_ie(struct adapter *padapter)
 	kfree(pbackup_remainder_ie);
 }
 
-static void update_bcn_p2p_ie(struct adapter *padapter)
-{
-}
-
 static void update_bcn_vendor_spec_ie(struct adapter *padapter, u8 *oui)
 {
 	DBG_88E("%s\n", __func__);
 
-	if (!memcmp(RTW_WPA_OUI, oui, 4))
-		update_bcn_wpa_ie(padapter);
-	else if (!memcmp(WMM_OUI, oui, 4))
-		update_bcn_wmm_ie(padapter);
-	else if (!memcmp(WPS_OUI, oui, 4))
+	if (!memcmp(WPS_OUI, oui, 4))
 		update_bcn_wps_ie(padapter);
-	else if (!memcmp(P2P_OUI, oui, 4))
-		update_bcn_p2p_ie(padapter);
 	else
 		DBG_88E("unknown OUI type!\n");
 }
@@ -1391,24 +1351,12 @@ void update_beacon(struct adapter *padapter, u8 ie_id, u8 *oui, u8 tx)
 	spin_lock_bh(&pmlmepriv->bcn_update_lock);
 
 	switch (ie_id) {
-	case 0xFF:
-		update_bcn_fixed_ie(padapter);/* 8: TimeStamp, 2: Beacon Interval 2:Capability */
-		break;
 	case _TIM_IE_:
 		update_BCNTIM(padapter);
 		break;
 	case _ERPINFO_IE_:
 		update_bcn_erpinfo_ie(padapter);
 		break;
-	case _HT_CAPABILITY_IE_:
-		update_bcn_htcap_ie(padapter);
-		break;
-	case _RSN_IE_2_:
-		update_bcn_rsn_ie(padapter);
-		break;
-	case _HT_ADD_INFO_IE_:
-		update_bcn_htinfo_ie(padapter);
-		break;
 	case _VENDOR_SPECIFIC_IE_:
 		update_bcn_vendor_spec_ie(padapter, oui);
 		break;
diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 9b7026e7d55b..433b926ceae7 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -201,23 +201,20 @@ _next:
 
 		if (rtw_cmd_filter(pcmdpriv, pcmd) == _FAIL) {
 			pcmd->res = H2C_DROPPED;
-			goto post_process;
-		}
-
-		if (pcmd->cmdcode < ARRAY_SIZE(wlancmds)) {
-			cmd_hdl = wlancmds[pcmd->cmdcode].h2cfuns;
-
-			if (cmd_hdl) {
-				ret = cmd_hdl(pcmd->padapter, pcmd->parmbuf);
-				pcmd->res = ret;
-			}
 		} else {
-			pcmd->res = H2C_PARAMETERS_ERROR;
-		}
+			if (pcmd->cmdcode < ARRAY_SIZE(wlancmds)) {
+			    cmd_hdl = wlancmds[pcmd->cmdcode].h2cfuns;
 
-		cmd_hdl = NULL;
+				if (cmd_hdl) {
+					ret = cmd_hdl(pcmd->padapter, pcmd->parmbuf);
+					pcmd->res = ret;
+				}
+			} else {
+				pcmd->res = H2C_PARAMETERS_ERROR;
+			}
 
-post_process:
+			cmd_hdl = NULL;
+		}
 
 		/* call callback function for post-processed */
 		if (pcmd->cmdcode < ARRAY_SIZE(rtw_cmd_callback)) {
@@ -242,15 +239,11 @@ post_process:
 	pcmdpriv->cmdthd_running = false;
 
 	/*  free all cmd_obj resources */
-	do {
-		pcmd = rtw_dequeue_cmd(&pcmdpriv->cmd_queue);
-		if (pcmd == NULL)
-			break;
-
+	while ((pcmd = rtw_dequeue_cmd(&pcmdpriv->cmd_queue))) {
 		/* DBG_88E("%s: leaving... drop cmdcode:%u\n", __func__, pcmd->cmdcode); */
 
 		rtw_free_cmd_obj(pcmd);
-	} while (1);
+	}
 
 	up(&pcmdpriv->terminate_cmdthread_sema);
 
@@ -570,31 +563,19 @@ u8 rtw_setopmode_cmd(struct adapter  *padapter, enum ndis_802_11_network_infra n
 	struct	setopmode_parm *psetop;
 
 	struct	cmd_priv   *pcmdpriv = &padapter->cmdpriv;
-	u8	res = _SUCCESS;
-
 
 	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
-	if (ph2c == NULL) {
-		res = false;
-		goto exit;
-	}
 	psetop = kzalloc(sizeof(struct setopmode_parm), GFP_KERNEL);
-
-	if (psetop == NULL) {
+	if (!ph2c || !psetop) {
 		kfree(ph2c);
-		res = false;
-		goto exit;
+		kfree(psetop);
+		return false;
 	}
 
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetop, _SetOpMode_CMD_);
 	psetop->mode = (u8)networktype;
 
-	res = rtw_enqueue_cmd(pcmdpriv, ph2c);
-
-exit:
-
-
-	return res;
+	return rtw_enqueue_cmd(pcmdpriv, ph2c);
 }
 
 u8 rtw_setstakey_cmd(struct adapter *padapter, u8 *psta, u8 unicast_key)
@@ -607,28 +588,16 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, u8 *psta, u8 unicast_key)
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
 	struct sta_info *sta = (struct sta_info *)psta;
-	u8	res = _SUCCESS;
-
 
 	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
-	if (ph2c == NULL) {
-		res = _FAIL;
-		goto exit;
-	}
-
 	psetstakey_para = kzalloc(sizeof(struct set_stakey_parm), GFP_KERNEL);
-	if (psetstakey_para == NULL) {
-		kfree(ph2c);
-		res = _FAIL;
-		goto exit;
-	}
-
 	psetstakey_rsp = kzalloc(sizeof(struct set_stakey_rsp), GFP_KERNEL);
-	if (psetstakey_rsp == NULL) {
+
+	if (!ph2c || !psetstakey_para || !psetstakey_rsp) {
 		kfree(ph2c);
 		kfree(psetstakey_para);
-		res = _FAIL;
-		goto exit;
+		kfree(psetstakey_rsp);
+		return _FAIL;
 	}
 
 	init_h2fwcmd_w_parm_no_rsp(ph2c, psetstakey_para, _SetStaKey_CMD_);
@@ -650,12 +619,7 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, u8 *psta, u8 unicast_key)
 	/* jeff: set this because at least sw key is ready */
 	padapter->securitypriv.busetkipkey = true;
 
-	res = rtw_enqueue_cmd(pcmdpriv, ph2c);
-
-exit:
-
-
-	return res;
+	return rtw_enqueue_cmd(pcmdpriv, ph2c);
 }
 
 u8 rtw_clearstakey_cmd(struct adapter *padapter, u8 *psta, u8 entry, u8 enqueue)
@@ -1086,31 +1050,19 @@ u8 rtw_ps_cmd(struct adapter *padapter)
 	struct drvextra_cmd_parm	*pdrvextra_cmd_parm;
 	struct cmd_priv	*pcmdpriv = &padapter->cmdpriv;
 
-	u8	res = _SUCCESS;
-
 	ppscmd = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
-	if (ppscmd == NULL) {
-		res = _FAIL;
-		goto exit;
-	}
-
 	pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC);
-	if (pdrvextra_cmd_parm == NULL) {
+	if (!ppscmd || !pdrvextra_cmd_parm) {
 		kfree(ppscmd);
-		res = _FAIL;
-		goto exit;
+		kfree(pdrvextra_cmd_parm);
+		return _FAIL;
 	}
 
 	pdrvextra_cmd_parm->ec_id = POWER_SAVING_CTRL_WK_CID;
 	pdrvextra_cmd_parm->pbuf = NULL;
 	init_h2fwcmd_w_parm_no_rsp(ppscmd, pdrvextra_cmd_parm, GEN_CMD_CODE(_Set_Drv_Extra));
 
-	res = rtw_enqueue_cmd(pcmdpriv, ppscmd);
-
-exit:
-
-
-	return res;
+	return rtw_enqueue_cmd(pcmdpriv, ppscmd);
 }
 
 #ifdef CONFIG_88EU_AP_MODE
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index eb894233a785..2320fb11af24 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -224,7 +224,7 @@ static void efuse_read_phymap_from_txpktbuf(
 	)
 {
 	u16 dbg_addr = 0;
-	u32 start  = 0, passing_time = 0;
+	unsigned long start = 0;
 	u8 reg_0x143 = 0;
 	u32 lo32 = 0, hi32 = 0;
 	u16 len = 0, count = 0;
@@ -248,7 +248,7 @@ static void efuse_read_phymap_from_txpktbuf(
 		usb_write8(adapter, REG_TXPKTBUF_DBG, 0);
 		start = jiffies;
 		while (!(reg_0x143 = usb_read8(adapter, REG_TXPKTBUF_DBG)) &&
-		       (passing_time = rtw_get_passing_time_ms(start)) < 1000) {
+		       jiffies_to_msecs(jiffies - start) < 1000) {
 			DBG_88E("%s polling reg_0x143:0x%02x, reg_0x106:0x%02x\n", __func__, reg_0x143, usb_read8(adapter, 0x106));
 			usleep_range(1000, 2000);
 		}
diff --git a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
index 22f5b45f5f7f..cf60717a6c19 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c
@@ -27,13 +27,6 @@
 
 extern void indicate_wx_scan_complete_event(struct adapter *padapter);
 
-#define IS_MAC_ADDRESS_BROADCAST(addr) \
-(\
-	((addr[0] == 0xff) && (addr[1] == 0xff) && \
-		(addr[2] == 0xff) && (addr[3] == 0xff) && \
-		(addr[4] == 0xff) && (addr[5] == 0xff))  ? true : false \
-)
-
 u8 rtw_do_join(struct adapter *padapter)
 {
 	struct list_head *plist, *phead;
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index c1b82f71b682..abab854e6889 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -163,7 +163,8 @@ exit:
 
 static void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
 {
-	u32 curr_time, delta_time;
+	unsigned long curr_time;
+	u32 delta_time;
 	u32 lifetime = SCANQUEUE_LIFETIME;
 	struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
 
@@ -272,7 +273,7 @@ int rtw_if_up(struct adapter *padapter)
 
 void rtw_generate_random_ibss(u8 *pibss)
 {
-	u32	curtime = jiffies;
+	unsigned long curtime = jiffies;
 
 	pibss[0] = 0x02;  /* in ad-hoc mode bit1 must set to 1 */
 	pibss[1] = 0x11;
@@ -365,20 +366,13 @@ struct	wlan_network	*rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
 
 	phead = get_list_head(scanned_queue);
 
-	plist = phead->next;
-
-	while (1) {
-		if (phead == plist)
-			break;
-
+	for (plist = phead->next; plist != phead; plist = plist->next) {
 		pwlan = container_of(plist, struct wlan_network, list);
 
 		if (!pwlan->fixed) {
 			if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
 				oldest = pwlan;
 		}
-
-		plist = plist->next;
 	}
 	return oldest;
 }
@@ -878,14 +872,14 @@ inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
 
 void rtw_scan_abort(struct adapter *adapter)
 {
-	u32 start;
+	unsigned long start;
 	struct mlme_priv	*pmlmepriv = &(adapter->mlmepriv);
 	struct mlme_ext_priv	*pmlmeext = &(adapter->mlmeextpriv);
 
 	start = jiffies;
 	pmlmeext->scan_abort = true;
 	while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
-	       rtw_get_passing_time_ms(start) <= 200) {
+	       jiffies_to_msecs(jiffies - start) <= 200) {
 		if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
 			break;
 		DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
@@ -1474,6 +1468,7 @@ static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
 	, struct wlan_network **candidate, struct wlan_network *competitor)
 {
 	int updated = false;
+	unsigned long since_scan;
 	struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
 
 
@@ -1494,7 +1489,8 @@ static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
 		goto exit;
 
 	if (pmlmepriv->to_roaming) {
-		if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
+		since_scan = jiffies - competitor->last_scanned;
+		if (jiffies_to_msecs(since_scan) >= RTW_SCAN_RESULT_EXPIRE ||
 		    is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
 			goto exit;
 	}
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index d900546b672f..3eca6874b6df 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -609,7 +609,7 @@ static void issue_probersp(struct adapter *padapter, unsigned char *da)
 	return;
 }
 
-static int _issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da, int wait_ack)
+static int issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame		*pmgntframe;
@@ -702,22 +702,16 @@ exit:
 	return ret;
 }
 
-static inline void issue_probereq(struct adapter *padapter,
-				  struct ndis_802_11_ssid *pssid, u8 *da)
-{
-	_issue_probereq(padapter, pssid, da, false);
-}
-
 static int issue_probereq_ex(struct adapter *padapter,
 			     struct ndis_802_11_ssid *pssid, u8 *da,
 			     int try_cnt, int wait_ms)
 {
 	int ret;
 	int i = 0;
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 
 	do {
-		ret = _issue_probereq(padapter, pssid, da, wait_ms > 0 ? true : false);
+		ret = issue_probereq(padapter, pssid, da, wait_ms > 0 ? true : false);
 
 		i++;
 
@@ -738,11 +732,13 @@ static int issue_probereq_ex(struct adapter *padapter,
 		if (da)
 			DBG_88E(FUNC_ADPT_FMT" to %pM, ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), da, rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 		else
 			DBG_88E(FUNC_ADPT_FMT", ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 	}
 exit:
 	return ret;
@@ -1299,7 +1295,7 @@ int issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int pow
 {
 	int ret;
 	int i = 0;
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 	struct wlan_bssid_ex    *pnetwork = &(pmlmeinfo->network);
@@ -1329,11 +1325,13 @@ int issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int pow
 		if (da)
 			DBG_88E(FUNC_ADPT_FMT" to %pM, ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), da, rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 		else
 			DBG_88E(FUNC_ADPT_FMT", ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 	}
 exit:
 	return ret;
@@ -1424,7 +1422,7 @@ int issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int
 {
 	int ret;
 	int i = 0;
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 	struct wlan_bssid_ex    *pnetwork = &(pmlmeinfo->network);
@@ -1454,11 +1452,13 @@ int issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int
 		if (da)
 			DBG_88E(FUNC_ADPT_FMT" to %pM, ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), da, rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 		else
 			DBG_88E(FUNC_ADPT_FMT", ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 	}
 exit:
 	return ret;
@@ -1536,7 +1536,7 @@ static int issue_deauth_ex(struct adapter *padapter, u8 *da,
 {
 	int ret;
 	int i = 0;
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 
 	do {
 		ret = _issue_deauth(padapter, da, reason, wait_ms > 0 ? true : false);
@@ -1559,11 +1559,13 @@ static int issue_deauth_ex(struct adapter *padapter, u8 *da,
 		if (da)
 			DBG_88E(FUNC_ADPT_FMT" to %pM, ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), da, rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 		else
 			DBG_88E(FUNC_ADPT_FMT", ch:%u%s, %d/%d in %u ms\n",
 				FUNC_ADPT_ARG(padapter), rtw_get_oper_ch(padapter),
-				ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+				ret == _SUCCESS ? ", acked" : "", i, try_cnt,
+				jiffies_to_msecs(jiffies - start));
 	}
 exit:
 	return ret;
@@ -1965,7 +1967,7 @@ unsigned int send_beacon(struct adapter *padapter)
 	int	issue = 0;
 	int poll = 0;
 
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 
 	rtw_hal_set_hwreg(padapter, HW_VAR_BCN_VALID, NULL);
 	do {
@@ -1981,13 +1983,16 @@ unsigned int send_beacon(struct adapter *padapter)
 	if (padapter->bSurpriseRemoved || padapter->bDriverStopped)
 		return _FAIL;
 	if (!bxmitok) {
-		DBG_88E("%s fail! %u ms\n", __func__, rtw_get_passing_time_ms(start));
+		DBG_88E("%s fail! %u ms\n", __func__,
+			jiffies_to_msecs(jiffies - start));
 		return _FAIL;
 	} else {
-		u32 passing_time = rtw_get_passing_time_ms(start);
+		u32 passing_time = jiffies_to_msecs(jiffies - start);
 
 		if (passing_time > 100 || issue > 3)
-			DBG_88E("%s success, issue:%d, poll:%d, %u ms\n", __func__, issue, poll, rtw_get_passing_time_ms(start));
+			DBG_88E("%s success, issue:%d, poll:%d, %u ms\n",
+				__func__, issue, poll,
+				jiffies_to_msecs(jiffies - start));
 		return _SUCCESS;
 	}
 }
@@ -2029,24 +2034,28 @@ static void site_survey(struct adapter *padapter)
 			for (i = 0; i < RTW_SSID_SCAN_AMOUNT; i++) {
 				if (pmlmeext->sitesurvey_res.ssid[i].SsidLength) {
 					/* todo: to issue two probe req??? */
-					issue_probereq(padapter, &(pmlmeext->sitesurvey_res.ssid[i]), NULL);
+					issue_probereq(padapter,
+					&(pmlmeext->sitesurvey_res.ssid[i]),
+								NULL, false);
 					/* msleep(SURVEY_TO>>1); */
-					issue_probereq(padapter, &(pmlmeext->sitesurvey_res.ssid[i]), NULL);
+					issue_probereq(padapter,
+					&(pmlmeext->sitesurvey_res.ssid[i]),
+								NULL, false);
 				}
 			}
 
 			if (pmlmeext->sitesurvey_res.scan_mode == SCAN_ACTIVE) {
 				/* todo: to issue two probe req??? */
-				issue_probereq(padapter, NULL, NULL);
+				issue_probereq(padapter, NULL, NULL, false);
 				/* msleep(SURVEY_TO>>1); */
-				issue_probereq(padapter, NULL, NULL);
+				issue_probereq(padapter, NULL, NULL, false);
 			}
 
 			if (pmlmeext->sitesurvey_res.scan_mode == SCAN_ACTIVE) {
 				/* todo: to issue two probe req??? */
-				issue_probereq(padapter, NULL, NULL);
+				issue_probereq(padapter, NULL, NULL, false);
 				/* msleep(SURVEY_TO>>1); */
-				issue_probereq(padapter, NULL, NULL);
+				issue_probereq(padapter, NULL, NULL, false);
 			}
 		}
 
@@ -4820,9 +4829,18 @@ void linked_status_chk(struct adapter *padapter)
 			} else {
 				if (rx_chk != _SUCCESS) {
 					if (pmlmeext->retry == 0) {
-						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
-						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
-						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
+						issue_probereq(padapter,
+						&pmlmeinfo->network.Ssid,
+						pmlmeinfo->network.MacAddress,
+									false);
+						issue_probereq(padapter,
+						&pmlmeinfo->network.Ssid,
+						pmlmeinfo->network.MacAddress,
+									false);
+						issue_probereq(padapter,
+						&pmlmeinfo->network.Ssid,
+						pmlmeinfo->network.MacAddress,
+									false);
 					}
 				}
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
index 9765946466ab..5e1ef9fdcf47 100644
--- a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
@@ -348,7 +348,7 @@ void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
 
 static u8 PS_RDY_CHECK(struct adapter *padapter)
 {
-	u32 curr_time, delta_time;
+	unsigned long curr_time, delta_time;
 	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;
 	struct mlme_priv	*pmlmepriv = &(padapter->mlmepriv);
 
@@ -418,7 +418,7 @@ void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_a
  */
 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
 {
-	u32 start_time;
+	unsigned long start_time;
 	u8 bAwake = false;
 	s32 err = 0;
 
@@ -435,7 +435,7 @@ s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
 			break;
 		}
 
-		if (rtw_get_passing_time_ms(start_time) > delay_ms) {
+		if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
 			err = -1;
 			DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
 			break;
@@ -561,24 +561,24 @@ int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *cal
 	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	unsigned long expires;
+	unsigned long start;
 	int ret = _SUCCESS;
 
 	expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
 	if (time_before(pwrpriv->ips_deny_time, expires))
 		pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
 
-{
-	u32 start = jiffies;
+	start = jiffies;
 	if (pwrpriv->ps_processing) {
 		DBG_88E("%s wait ps_processing...\n", __func__);
-		while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
+		while (pwrpriv->ps_processing &&
+		       jiffies_to_msecs(jiffies - start) <= 3000)
 			usleep_range(1000, 3000);
 		if (pwrpriv->ps_processing)
 			DBG_88E("%s wait ps_processing timeout\n", __func__);
 		else
 			DBG_88E("%s wait ps_processing done\n", __func__);
 	}
-}
 
 	/* System suspend is not allowed to wakeup */
 	if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index cabb810369bd..e778132b73dc 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -641,7 +641,7 @@ static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitfr
 	if (pattrib->psta)
 		stainfo = pattrib->psta;
 	else
-		stainfo = rtw_get_stainfo(&padapter->stapriv , &pattrib->ra[0]);
+		stainfo = rtw_get_stainfo(&padapter->stapriv, &pattrib->ra[0]);
 
 
 	hw_hdr_offset = TXDESC_SIZE + (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
@@ -1702,12 +1702,12 @@ u32 rtw_get_ff_hwaddr(struct xmit_frame *pxmitframe)
 	return addr;
 }
 
-static void do_queue_select(struct adapter	*padapter, struct pkt_attrib *pattrib)
+static void do_queue_select(struct adapter *padapter, struct pkt_attrib *pattrib)
 {
 	u8 qsel;
 
 	qsel = pattrib->priority;
-	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("### do_queue_select priority=%d , qsel = %d\n", pattrib->priority , qsel));
+	RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("### do_queue_select priority=%d , qsel = %d\n", pattrib->priority, qsel));
 
 	pattrib->qsel = qsel;
 }
@@ -2186,11 +2186,6 @@ void rtw_sctx_done_err(struct submit_ctx **sctx, int status)
 	}
 }
 
-void rtw_sctx_done(struct submit_ctx **sctx)
-{
-	rtw_sctx_done_err(sctx, RTW_SCTX_DONE_SUCCESS);
-}
-
 int rtw_ack_tx_wait(struct xmit_priv *pxmitpriv, u32 timeout_ms)
 {
 	struct submit_ctx *pack_tx_ops = &pxmitpriv->ack_tx_ops;
diff --git a/drivers/staging/rtl8188eu/hal/fw.c b/drivers/staging/rtl8188eu/hal/fw.c
index 23aa6d37acac..4d72537644b3 100644
--- a/drivers/staging/rtl8188eu/hal/fw.c
+++ b/drivers/staging/rtl8188eu/hal/fw.c
@@ -58,43 +58,31 @@ static void _rtl88e_fw_block_write(struct adapter *adapt,
 				   const u8 *buffer, u32 size)
 {
 	u32 blk_sz = sizeof(u32);
-	u8 *buf_ptr = (u8 *)buffer;
-	u32 *pu4BytePtr = (u32 *)buffer;
-	u32 i, offset, blk_cnt, remain;
+	const u8 *byte_buffer;
+	const u32 *dword_buffer = (u32 *)buffer;
+	u32 i, write_address, blk_cnt, remain;
 
 	blk_cnt = size / blk_sz;
 	remain = size % blk_sz;
 
-	for (i = 0; i < blk_cnt; i++) {
-		offset = i * blk_sz;
-		usb_write32(adapt, (FW_8192C_START_ADDRESS + offset),
-				*(pu4BytePtr + i));
-	}
+	write_address = FW_8192C_START_ADDRESS;
 
-	if (remain) {
-		offset = blk_cnt * blk_sz;
-		buf_ptr += offset;
-		for (i = 0; i < remain; i++) {
-			usb_write8(adapt, (FW_8192C_START_ADDRESS +
-						 offset + i), *(buf_ptr + i));
-		}
-	}
+	for (i = 0; i < blk_cnt; i++, write_address += blk_sz)
+		usb_write32(adapt, write_address, dword_buffer[i]);
+
+	byte_buffer = buffer + blk_cnt * blk_sz;
+	for (i = 0; i < remain; i++, write_address++)
+		usb_write8(adapt, write_address, byte_buffer[i]);
 }
 
 static void _rtl88e_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
 {
-	u32 fwlen = *pfwlen;
-	u8 remain = (u8)(fwlen % 4);
-
-	remain = (remain == 0) ? 0 : (4 - remain);
+	u32 i;
 
-	while (remain > 0) {
-		pfwbuf[fwlen] = 0;
-		fwlen++;
-		remain--;
-	}
+	for (i = *pfwlen; i < roundup(*pfwlen, 4); i++)
+		pfwbuf[i] = 0;
 
-	*pfwlen = fwlen;
+	*pfwlen = i;
 }
 
 static void _rtl88e_fw_page_write(struct adapter *adapt,
diff --git a/drivers/staging/rtl8188eu/hal/hal_com.c b/drivers/staging/rtl8188eu/hal/hal_com.c
index 38e9fdc312d3..3871cda2eec2 100644
--- a/drivers/staging/rtl8188eu/hal/hal_com.c
+++ b/drivers/staging/rtl8188eu/hal/hal_com.c
@@ -32,19 +32,19 @@ void dump_chip_info(struct HAL_VERSION	chip_vers)
 	char buf[128];
 
 	cnt += sprintf((buf+cnt), "Chip Version Info: CHIP_8188E_");
-	cnt += sprintf((buf+cnt), "%s_", IS_NORMAL_CHIP(chip_vers) ?
+	cnt += sprintf((buf+cnt), "%s_", chip_vers.ChipType == NORMAL_CHIP ?
 		       "Normal_Chip" : "Test_Chip");
-	cnt += sprintf((buf+cnt), "%s_", IS_CHIP_VENDOR_TSMC(chip_vers) ?
+	cnt += sprintf((buf+cnt), "%s_", chip_vers.VendorType == CHIP_VENDOR_TSMC ?
 		       "TSMC" : "UMC");
-	if (IS_A_CUT(chip_vers))
+	if (chip_vers.CUTVersion == A_CUT_VERSION)
 		cnt += sprintf((buf+cnt), "A_CUT_");
-	else if (IS_B_CUT(chip_vers))
+	else if (chip_vers.CUTVersion == B_CUT_VERSION)
 		cnt += sprintf((buf+cnt), "B_CUT_");
-	else if (IS_C_CUT(chip_vers))
+	else if (chip_vers.CUTVersion == C_CUT_VERSION)
 		cnt += sprintf((buf+cnt), "C_CUT_");
-	else if (IS_D_CUT(chip_vers))
+	else if (chip_vers.CUTVersion == D_CUT_VERSION)
 		cnt += sprintf((buf+cnt), "D_CUT_");
-	else if (IS_E_CUT(chip_vers))
+	else if (chip_vers.CUTVersion == E_CUT_VERSION)
 		cnt += sprintf((buf+cnt), "E_CUT_");
 	else
 		cnt += sprintf((buf+cnt), "UNKNOWN_CUT(%d)_",
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
index fca590949409..199a77acd7a9 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
@@ -67,7 +67,7 @@ static void Init_ODM_ComInfo_88E(struct adapter *Adapter)
 	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_FAB_VER, fab_ver);
 	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_CUT_VER, cut_ver);
 
-	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_MP_TEST_CHIP, IS_NORMAL_CHIP(hal_data->VersionID));
+	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_MP_TEST_CHIP, hal_data->VersionID.ChipType == NORMAL_CHIP ? true : false);
 
 	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_PATCH_ID, hal_data->CustomerID);
 	ODM_CmnInfoInit(dm_odm, ODM_CMNINFO_BWIFI_TEST, Adapter->registrypriv.wifi_spec);
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
index e3e5d6f5d4f9..2592bc298f84 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
@@ -53,7 +53,7 @@ s32 iol_execute(struct adapter *padapter, u8 control)
 {
 	s32 status = _FAIL;
 	u8 reg_0x88 = 0;
-	u32 start = 0, passing_time = 0;
+	unsigned long start = 0;
 
 	control = control&0x0f;
 	reg_0x88 = usb_read8(padapter, REG_HMEBOX_E0);
@@ -61,8 +61,8 @@ s32 iol_execute(struct adapter *padapter, u8 control)
 
 	start = jiffies;
 	while ((reg_0x88 = usb_read8(padapter, REG_HMEBOX_E0)) & control &&
-	       (passing_time = rtw_get_passing_time_ms(start)) < 1000) {
-		;
+	       jiffies_to_msecs(jiffies - start) < 1000) {
+		udelay(5);
 	}
 
 	reg_0x88 = usb_read8(padapter, REG_HMEBOX_E0);
@@ -242,6 +242,7 @@ static s32 _LLTWrite(struct adapter *padapter, u32 address, u32 data)
 			status = _FAIL;
 			break;
 		}
+		udelay(5);
 	} while (count++);
 
 	return status;
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
index 7c5086ecff17..e04303ce80af 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
@@ -463,30 +463,26 @@ s32 rtl8188eu_xmitframe_complete(struct adapter *adapt, struct xmit_priv *pxmitp
 	}
 
 	/* 3 1. pick up first frame */
-	do {
-		rtw_free_xmitframe(pxmitpriv, pxmitframe);
-
-		pxmitframe = rtw_dequeue_xframe(pxmitpriv, pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
-		if (pxmitframe == NULL) {
-			/*  no more xmit frame, release xmit buffer */
-			rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
-			return false;
-		}
+	rtw_free_xmitframe(pxmitpriv, pxmitframe);
 
-		pxmitframe->pxmitbuf = pxmitbuf;
-		pxmitframe->buf_addr = pxmitbuf->pbuf;
-		pxmitbuf->priv_data = pxmitframe;
+	pxmitframe = rtw_dequeue_xframe(pxmitpriv, pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
+	if (pxmitframe == NULL) {
+		/*  no more xmit frame, release xmit buffer */
+		rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
+		return false;
+	}
 
-		pxmitframe->agg_num = 1; /*  alloc xmitframe should assign to 1. */
-		pxmitframe->pkt_offset = 1; /*  first frame of aggregation, reserve offset */
+	pxmitframe->pxmitbuf = pxmitbuf;
+	pxmitframe->buf_addr = pxmitbuf->pbuf;
+	pxmitbuf->priv_data = pxmitframe;
 
-		rtw_xmitframe_coalesce(adapt, pxmitframe->pkt, pxmitframe);
+	pxmitframe->agg_num = 1; /*  alloc xmitframe should assign to 1. */
+	pxmitframe->pkt_offset = 1; /*  first frame of aggregation, reserve offset */
 
-		/*  always return ndis_packet after rtw_xmitframe_coalesce */
-		rtw_os_xmit_complete(adapt, pxmitframe);
+	rtw_xmitframe_coalesce(adapt, pxmitframe->pkt, pxmitframe);
 
-		break;
-	} while (1);
+	/*  always return ndis_packet after rtw_xmitframe_coalesce */
+	rtw_os_xmit_complete(adapt, pxmitframe);
 
 	/* 3 2. aggregate same priority and same DA(AP or STA) frames */
 	pfirstframe = pxmitframe;
diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c
index 7e72259f0e40..5789e1e23f0a 100644
--- a/drivers/staging/rtl8188eu/hal/usb_halinit.c
+++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c
@@ -684,7 +684,7 @@ static u32 rtl8188eu_hal_init(struct adapter *Adapter)
 	struct hal_data_8188e		*haldata = GET_HAL_DATA(Adapter);
 	struct pwrctrl_priv		*pwrctrlpriv = &Adapter->pwrctrlpriv;
 	struct registry_priv	*pregistrypriv = &Adapter->registrypriv;
-	u32 init_start_time = jiffies;
+	unsigned long init_start_time = jiffies;
 
 	#define HAL_INIT_PROFILE_TAG(stage) do {} while (0)
 
@@ -903,7 +903,8 @@ HAL_INIT_PROFILE_TAG(HAL_INIT_STAGES_LCK);
 exit:
 HAL_INIT_PROFILE_TAG(HAL_INIT_STAGES_END);
 
-	DBG_88E("%s in %dms\n", __func__, rtw_get_passing_time_ms(init_start_time));
+	DBG_88E("%s in %dms\n", __func__,
+		jiffies_to_msecs(jiffies - init_start_time));
 
 
 	return status;
@@ -1149,14 +1150,15 @@ static void _ReadRFType(struct adapter *Adapter)
 
 static void _ReadAdapterInfo8188EU(struct adapter *Adapter)
 {
-	u32 start = jiffies;
+	unsigned long start = jiffies;
 
 	MSG_88E("====> %s\n", __func__);
 
 	_ReadRFType(Adapter);/* rf_chip -> _InitRFType() */
 	_ReadPROMContent(Adapter);
 
-	MSG_88E("<==== %s in %d ms\n", __func__, rtw_get_passing_time_ms(start));
+	MSG_88E("<==== %s in %d ms\n", __func__,
+		jiffies_to_msecs(jiffies - start));
 }
 
 #define GPIO_DEBUG_PORT_NUM 0
diff --git a/drivers/staging/rtl8188eu/include/HalVerDef.h b/drivers/staging/rtl8188eu/include/HalVerDef.h
index 56b4ff08e509..6f2b2a436b04 100644
--- a/drivers/staging/rtl8188eu/include/HalVerDef.h
+++ b/drivers/staging/rtl8188eu/include/HalVerDef.h
@@ -47,37 +47,4 @@ struct HAL_VERSION {
 	enum HAL_VENDOR		VendorType;
 };
 
-/*  Get element */
-#define GET_CVID_CHIP_TYPE(version)	(((version).ChipType))
-#define GET_CVID_MANUFACTUER(version)	(((version).VendorType))
-#define GET_CVID_CUT_VERSION(version)	(((version).CUTVersion))
-
-/* Common Macro. -- */
-/* HAL_VERSION VersionID */
-
-/* HAL_CHIP_TYPE_E */
-#define IS_TEST_CHIP(version)				\
-	((GET_CVID_CHIP_TYPE(version) == TEST_CHIP) ? true : false)
-#define IS_NORMAL_CHIP(version)				\
-	((GET_CVID_CHIP_TYPE(version) == NORMAL_CHIP) ? true : false)
-
-/* HAL_CUT_VERSION_E */
-#define IS_A_CUT(version)				\
-	((GET_CVID_CUT_VERSION(version) == A_CUT_VERSION) ? true : false)
-#define IS_B_CUT(version)				\
-	((GET_CVID_CUT_VERSION(version) == B_CUT_VERSION) ? true : false)
-#define IS_C_CUT(version)				\
-	((GET_CVID_CUT_VERSION(version) == C_CUT_VERSION) ? true : false)
-#define IS_D_CUT(version)				\
-	((GET_CVID_CUT_VERSION(version) == D_CUT_VERSION) ? true : false)
-#define IS_E_CUT(version)				\
-	((GET_CVID_CUT_VERSION(version) == E_CUT_VERSION) ? true : false)
-
-
-/* HAL_VENDOR_E */
-#define IS_CHIP_VENDOR_TSMC(version)			\
-	((GET_CVID_MANUFACTUER(version) == CHIP_VENDOR_TSMC) ? true : false)
-#define IS_CHIP_VENDOR_UMC(version)			\
-	((GET_CVID_MANUFACTUER(version) == CHIP_VENDOR_UMC) ? true : false)
-
 #endif
diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index e24fe8cc3d0b..22de53d6539a 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -87,8 +87,6 @@ u32  _rtw_down_sema(struct semaphore *sema);
 
 void _rtw_init_queue(struct __queue *pqueue);
 
-s32  rtw_get_passing_time_ms(u32 start);
-
 struct rtw_netdev_priv_indicator {
 	void *priv;
 	u32 sizeof_priv;
diff --git a/drivers/staging/rtl8188eu/include/rtw_xmit.h b/drivers/staging/rtl8188eu/include/rtw_xmit.h
index 62f5db169523..b7c20883d355 100644
--- a/drivers/staging/rtl8188eu/include/rtw_xmit.h
+++ b/drivers/staging/rtl8188eu/include/rtw_xmit.h
@@ -197,7 +197,6 @@ enum {
 void rtw_sctx_init(struct submit_ctx *sctx, int timeout_ms);
 int rtw_sctx_wait(struct submit_ctx *sctx);
 void rtw_sctx_done_err(struct submit_ctx **sctx, int status);
-void rtw_sctx_done(struct submit_ctx **sctx);
 
 struct xmit_buf {
 	struct list_head list;
diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index d063d02db7f0..9201b94d017c 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -1100,7 +1100,7 @@ netdev_open_error:
 int rtw_ips_pwr_up(struct adapter *padapter)
 {
 	int result;
-	u32 start_time = jiffies;
+	unsigned long start_time = jiffies;
 
 	DBG_88E("===>  rtw_ips_pwr_up..............\n");
 	rtw_reset_drv_sw(padapter);
@@ -1109,13 +1109,14 @@ int rtw_ips_pwr_up(struct adapter *padapter)
 
 	rtw_led_control(padapter, LED_CTL_NO_LINK);
 
-	DBG_88E("<===  rtw_ips_pwr_up.............. in %dms\n", rtw_get_passing_time_ms(start_time));
+	DBG_88E("<===  rtw_ips_pwr_up.............. in %dms\n",
+		jiffies_to_msecs(jiffies - start_time));
 	return result;
 }
 
 void rtw_ips_pwr_down(struct adapter *padapter)
 {
-	u32 start_time = jiffies;
+	unsigned long start_time = jiffies;
 
 	DBG_88E("===> rtw_ips_pwr_down...................\n");
 
@@ -1124,7 +1125,8 @@ void rtw_ips_pwr_down(struct adapter *padapter)
 	rtw_led_control(padapter, LED_CTL_POWER_OFF);
 
 	rtw_ips_dev_unload(padapter);
-	DBG_88E("<=== rtw_ips_pwr_down..................... in %dms\n", rtw_get_passing_time_ms(start_time));
+	DBG_88E("<=== rtw_ips_pwr_down..................... in %dms\n",
+		jiffies_to_msecs(jiffies - start_time));
 }
 
 void rtw_ips_dev_unload(struct adapter *padapter)
diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
index 466cd76fc1c4..d87b54711c0d 100644
--- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -77,12 +77,6 @@ void	_rtw_init_queue(struct __queue *pqueue)
 	spin_lock_init(&(pqueue->lock));
 }
 
-/*  the input parameter start must be in jiffies */
-inline s32 rtw_get_passing_time_ms(u32 start)
-{
-	return jiffies_to_msecs(jiffies-start);
-}
-
 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv,
 						    void *old_priv)
 {
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index 82a7c27c517f..01d50f7c1667 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -227,7 +227,7 @@ static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message)
 	struct net_device *pnetdev = padapter->pnetdev;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
-	u32 start_time = jiffies;
+	unsigned long start_time = jiffies;
 
 	pr_debug("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
 
@@ -282,7 +282,7 @@ static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message)
 
 exit:
 	pr_debug("<===  %s .............. in %dms\n", __func__,
-		 rtw_get_passing_time_ms(start_time));
+		 jiffies_to_msecs(jiffies - start_time));
 
 	return 0;
 }
@@ -292,7 +292,7 @@ static int rtw_resume_process(struct adapter *padapter)
 	struct net_device *pnetdev;
 	struct pwrctrl_priv *pwrpriv = NULL;
 	int ret = -1;
-	u32 start_time = jiffies;
+	unsigned long start_time = jiffies;
 
 	pr_debug("==> %s (%s:%d)\n", __func__, current->comm, current->pid);
 
@@ -323,7 +323,7 @@ exit:
 	if (pwrpriv)
 		pwrpriv->bInSuspend = false;
 	pr_debug("<===  %s return %d.............. in %dms\n", __func__,
-		ret, rtw_get_passing_time_ms(start_time));
+		ret, jiffies_to_msecs(jiffies - start_time));
 
 	return ret;
 }
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index 0b407feb5407..5e3bbe5c3ca4 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -90,13 +90,12 @@ void rtl92e_set_bb_reg(struct net_device *dev, u32 dwRegAddr, u32 dwBitMask,
 
 u32 rtl92e_get_bb_reg(struct net_device *dev, u32 dwRegAddr, u32 dwBitMask)
 {
-	u32 Ret = 0, OriginalValue, BitShift;
+	u32 OriginalValue, BitShift;
 
 	OriginalValue = rtl92e_readl(dev, dwRegAddr);
 	BitShift = _rtl92e_calculate_bit_shift(dwBitMask);
-	Ret = (OriginalValue & dwBitMask) >> BitShift;
 
-	return Ret;
+	return (OriginalValue & dwBitMask) >> BitShift;
 }
 
 static u32 _rtl92e_phy_rf_read(struct net_device *dev,
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index e06864f64beb..f4a4eae72aa4 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -5114,21 +5114,6 @@ static void __exit rtl8192_usb_module_exit(void)
 	RT_TRACE(COMP_DOWN, "Exiting");
 }
 
-
-void rtl8192_try_wake_queue(struct net_device *dev, int pri)
-{
-	unsigned long flags;
-	short enough_desc;
-	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
-
-	spin_lock_irqsave(&priv->tx_lock, flags);
-	enough_desc = check_nic_enough_desc(dev, pri);
-	spin_unlock_irqrestore(&priv->tx_lock, flags);
-
-	if (enough_desc)
-		ieee80211_wake_queue(priv->ieee80211);
-}
-
 void EnableHWSecurityConfig8192(struct net_device *dev)
 {
 	u8 SECR_value = 0x0;
diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index 70656441c145..f264d88364a1 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -38,21 +38,6 @@ static u32 RF_CHANNEL_TABLE_ZEBRA[] = {
 #define rtl819XAGCTAB_Array Rtl8192UsbAGCTAB_Array
 
 /******************************************************************************
- * function: This function reads BB parameters from header file we generate,
- *           and does register read/write
- * input:    u32	bitmask  //taget bit pos in the addr to be modified
- * output:   none
- * return:   u32	return the shift bit position of the mask
- ******************************************************************************/
-static u32 rtl8192_CalculateBitShift(u32 bitmask)
-{
-	u32 i;
-
-	i = ffs(bitmask) - 1;
-	return i;
-}
-
-/******************************************************************************
  * function:  This function checks different RF type to execute legal judgement.
  *            If RF Path is illegal, we will return false.
  * input:     net_device	 *dev
@@ -94,7 +79,7 @@ void rtl8192_setBBreg(struct net_device *dev, u32 reg_addr, u32 bitmask,
 
 	if (bitmask != bMaskDWord) {
 		read_nic_dword(dev, reg_addr, &reg);
-		bitshift = rtl8192_CalculateBitShift(bitmask);
+		bitshift = ffs(bitmask) - 1;
 		reg &= ~bitmask;
 		reg |= data << bitshift;
 		write_nic_dword(dev, reg_addr, reg);
@@ -117,7 +102,7 @@ u32 rtl8192_QueryBBReg(struct net_device *dev, u32 reg_addr, u32 bitmask)
 	u32 reg, bitshift;
 
 	read_nic_dword(dev, reg_addr, &reg);
-	bitshift = rtl8192_CalculateBitShift(bitmask);
+	bitshift = ffs(bitmask) - 1;
 
 	return (reg & bitmask) >> bitshift;
 }
@@ -306,7 +291,7 @@ void rtl8192_phy_SetRFReg(struct net_device *dev, RF90_RADIO_PATH_E eRFPath,
 		if (bitmask != bMask12Bits) {
 			/* RF data is 12 bits only */
 			reg = phy_FwRFSerialRead(dev, eRFPath, reg_addr);
-			bitshift =  rtl8192_CalculateBitShift(bitmask);
+			bitshift =  ffs(bitmask) - 1;
 			reg &= ~bitmask;
 			reg |= data << bitshift;
 
@@ -321,7 +306,7 @@ void rtl8192_phy_SetRFReg(struct net_device *dev, RF90_RADIO_PATH_E eRFPath,
 		if (bitmask != bMask12Bits) {
 			/* RF data is 12 bits only */
 			reg = rtl8192_phy_RFSerialRead(dev, eRFPath, reg_addr);
-			bitshift =  rtl8192_CalculateBitShift(bitmask);
+			bitshift =  ffs(bitmask) - 1;
 			reg &= ~bitmask;
 			reg |= data << bitshift;
 
@@ -356,7 +341,7 @@ u32 rtl8192_phy_QueryRFReg(struct net_device *dev, RF90_RADIO_PATH_E eRFPath,
 	} else {
 		reg = rtl8192_phy_RFSerialRead(dev, eRFPath, reg_addr);
 	}
-	bitshift =  rtl8192_CalculateBitShift(bitmask);
+	bitshift =  ffs(bitmask) - 1;
 	reg = (reg & bitmask) >> bitshift;
 	return reg;
 
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index a4a002b55128..04f727fc95ea 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -123,7 +123,7 @@ static void _free_network(struct mlme_priv *pmlmepriv,
 	spin_unlock_irqrestore(&free_queue->lock, irqL);
 }
 
-static void _free_network_nolock(struct mlme_priv *pmlmepriv,
+static void free_network_nolock(struct mlme_priv *pmlmepriv,
 			  struct wlan_network *pnetwork)
 {
 	struct  __queue *free_queue = &pmlmepriv->free_bss_pool;
@@ -234,12 +234,6 @@ static struct	wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
 	return _r8712_alloc_network(pmlmepriv);
 }
 
-static void free_network_nolock(struct mlme_priv *pmlmepriv,
-			 struct wlan_network *pnetwork)
-{
-	_free_network_nolock(pmlmepriv, pnetwork);
-}
-
 void r8712_free_network_queue(struct _adapter *dev)
 {
 	_free_network_queue(dev);
diff --git a/drivers/staging/rtl8723au/core/rtw_efuse.c b/drivers/staging/rtl8723au/core/rtw_efuse.c
index 906b5782d165..f174b4d1a018 100644
--- a/drivers/staging/rtl8723au/core/rtw_efuse.c
+++ b/drivers/staging/rtl8723au/core/rtw_efuse.c
@@ -273,48 +273,6 @@ u8 EFUSE_Read1Byte23a(struct rtw_adapter *Adapter, u16 Address)
 		return 0xFF;
 }
 
-/* Copy from WMAC fot EFUSE write 1 byte. */
-void EFUSE_Write1Byte(struct rtw_adapter *Adapter, u16 Address, u8 Value)
-{
-	u8	Bytetemp = {0x00};
-	u8	temp = {0x00};
-	u32	k = 0;
-	u16	contentLen = 0;
-
-	EFUSE_GetEfuseDefinition23a(Adapter, EFUSE_WIFI,
-				 TYPE_EFUSE_REAL_CONTENT_LEN,
-				 (void *)&contentLen);
-
-	if (Address < contentLen) { /* E-fuse 512Byte */
-		rtl8723au_write8(Adapter, EFUSE_CTRL, Value);
-
-		/* Write E-fuse Register address bit0~7 */
-		temp = Address & 0xFF;
-		rtl8723au_write8(Adapter, EFUSE_CTRL+1, temp);
-		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+2);
-
-		/* Write E-fuse Register address bit8~9 */
-		temp = ((Address >> 8) & 0x03) | (Bytetemp & 0xFC);
-		rtl8723au_write8(Adapter, EFUSE_CTRL+2, temp);
-
-		/* Write 0x30[31]= 1 */
-		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
-		temp = Bytetemp | 0x80;
-		rtl8723au_write8(Adapter, EFUSE_CTRL+3, temp);
-
-		/* Wait Write-ready (0x30[31]= 0) */
-		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
-		while (Bytetemp & 0x80) {
-			Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
-			k++;
-			if (k == 100) {
-				k = 0;
-				break;
-			}
-		}
-	}
-}
-
 /* Read one byte from real Efuse. */
 int efuse_OneByteRead23a(struct rtw_adapter *pAdapter, u16 addr, u8 *data)
 {
@@ -501,7 +459,8 @@ int rtw_BT_efuse_map_read23a(struct rtw_adapter *padapter,
 }
 
 /* Read All Efuse content */
-void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType, u8 *Efuse)
+static void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType,
+			     u8 *Efuse)
 {
 	u16	mapLen = 0;
 
diff --git a/drivers/staging/sm750fb/modedb.h b/drivers/staging/sm750fb/modedb.h
deleted file mode 100644
index 83cb2e2ae51a..000000000000
--- a/drivers/staging/sm750fb/modedb.h
+++ /dev/null
@@ -1,233 +0,0 @@
-
-static const struct fb_videomode modedb2[] = {
-	{
-		/* 640x400 @ 70 Hz, 31.5 kHz hsync */
-		NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 640x480 @ 60 Hz, 31.5 kHz hsync */
-		NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 800x600 @ 56 Hz, 35.15 kHz hsync */
-		NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
-		NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
-		0, FB_VMODE_INTERLACED
-	}, {
-		/* 640x400 @ 85 Hz, 37.86 kHz hsync */
-		NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
-		FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}, {
-		/* 640x480 @ 72 Hz, 36.5 kHz hsync */
-		NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 640x480 @ 75 Hz, 37.50 kHz hsync */
-		NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 800x600 @ 60 Hz, 37.8 kHz hsync */
-		NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 640x480 @ 85 Hz, 43.27 kHz hsync */
-		NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
-		NULL, 69, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
-		0, FB_VMODE_INTERLACED
-	}, {
-		/* 800x600 @ 72 Hz, 48.0 kHz hsync */
-		NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 60 Hz, 48.4 kHz hsync */
-		NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 640x480 @ 100 Hz, 53.01 kHz hsync */
-		NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 60 Hz, 53.5 kHz hsync */
-		NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 800x600 @ 85 Hz, 55.84 kHz hsync */
-		NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 70 Hz, 56.5 kHz hsync */
-		NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/*  1280x960-60 VESA */
-		NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
-		FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA
-	}, {
-		/*  1280x1024-60 VESA */
-		NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
-		FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA
-	}, {
-		/* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
-		NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
-		0, FB_VMODE_INTERLACED
-	}, {
-		/* 800x600 @ 100 Hz, 64.02 kHz hsync */
-		NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 76 Hz, 62.5 kHz hsync */
-		NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 70 Hz, 62.4 kHz hsync */
-		NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
-		NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1400x1050 @ 60Hz, 63.9 kHz hsync */
-		NULL, 68, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
-		NULL, 75, 1400, 1050, 9271, 120, 56, 13, 0, 112, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
-		NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 85 Hz, 70.24 kHz hsync */
-		NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 78 Hz, 70.8 kHz hsync */
-		NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
-		NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1600x1200 @ 60Hz, 75.00 kHz hsync */
-		NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 84 Hz, 76.0 kHz hsync */
-		NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
-		NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1024x768 @ 100Hz, 80.21 kHz hsync */
-		NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
-		NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
-		NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1152x864 @ 100 Hz, 89.62 kHz hsync */
-		NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
-		NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
-		NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
-		NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
-		NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 1800x1440 @ 64Hz, 96.15 kHz hsync  */
-		NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 1800x1440 @ 70Hz, 104.52 kHz hsync  */
-		NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
-		FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
-		FB_VMODE_NONINTERLACED
-	}, {
-		/* 512x384 @ 78 Hz, 31.50 kHz hsync */
-		NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 512x384 @ 85 Hz, 34.38 kHz hsync */
-		NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
-		0, FB_VMODE_NONINTERLACED
-	}, {
-		/* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
-		NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
-		NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 320x240 @ 72 Hz, 36.5 kHz hsync */
-		NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
-		NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 400x300 @ 60 Hz, 37.8 kHz hsync */
-		NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 400x300 @ 72 Hz, 48.0 kHz hsync */
-		NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
-		NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 480x300 @ 60 Hz, 37.8 kHz hsync */
-		NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 480x300 @ 63 Hz, 39.6 kHz hsync */
-		NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
-		0, FB_VMODE_DOUBLE
-	}, {
-		/* 480x300 @ 72 Hz, 48.0 kHz hsync */
-		NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
-		0, FB_VMODE_DOUBLE
-	},
-};
-static const int nmodedb2 = sizeof(modedb2);
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 860e1c288ad5..c78421b5b0e7 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -21,8 +21,6 @@
 #include "sm750_accel.h"
 #include "sm750_cursor.h"
 
-#include "modedb.h"
-
 /*
  * #ifdef __BIG_ENDIAN
  * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,
diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h
index c6c24423a7f0..5af59a5fce61 100644
--- a/drivers/staging/unisys/include/channel.h
+++ b/drivers/staging/unisys/include/channel.h
@@ -60,15 +60,19 @@ enum channel_clientstate {
 	CHANNELCLI_DISABLED = 1,	/* client can see channel but is NOT
 					 * allowed to use it unless given TBD
 					 * explicit request (should actually be
-					 * < DETACHED) */
+					 * < DETACHED)
+					 */
 	CHANNELCLI_ATTACHING = 2,	/* legacy EFI client request
-					 * for EFI server to attach */
+					 * for EFI server to attach
+					 */
 	CHANNELCLI_ATTACHED = 3,	/* idle, but client may want
-					 * to use channel any time */
+					 * to use channel any time
+					 */
 	CHANNELCLI_BUSY = 4,	/* client either wants to use or is
-				 * using channel */
-	CHANNELCLI_OWNED = 5	/* "no worries" state - client can
-				 * access channel anytime */
+				 * using channel
+				 */
+	CHANNELCLI_OWNED = 5	/* "no worries" state - client can */
+				/* access channel anytime */
 };
 
 static inline const u8 *
@@ -116,11 +120,13 @@ ULTRA_CHANNELCLI_STRING(u32 v)
 
 /* Values for ULTRA_CHANNEL_PROTOCOL.CliErrorBoot: */
 /* throttling invalid boot channel statetransition error due to client
- * disabled */
+ * disabled
+ */
 #define ULTRA_CLIERRORBOOT_THROTTLEMSG_DISABLED    0x01
 
 /* throttling invalid boot channel statetransition error due to client
- * not attached */
+ * not attached
+ */
 #define ULTRA_CLIERRORBOOT_THROTTLEMSG_NOTATTACHED 0x02
 
 /* throttling invalid boot channel statetransition error due to busy channel */
@@ -128,24 +134,28 @@ ULTRA_CHANNELCLI_STRING(u32 v)
 
 /* Values for ULTRA_CHANNEL_PROTOCOL.CliErrorOS: */
 /* throttling invalid guest OS channel statetransition error due to
- * client disabled */
+ * client disabled
+ */
 #define ULTRA_CLIERROROS_THROTTLEMSG_DISABLED      0x01
 
 /* throttling invalid guest OS channel statetransition error due to
- * client not attached */
+ * client not attached
+ */
 #define ULTRA_CLIERROROS_THROTTLEMSG_NOTATTACHED   0x02
 
 /* throttling invalid guest OS channel statetransition error due to
- * busy channel */
+ * busy channel
+ */
 #define ULTRA_CLIERROROS_THROTTLEMSG_BUSY          0x04
 
 /* Values for ULTRA_CHANNEL_PROTOCOL.Features: This define exists so
-* that windows guest can look at the FeatureFlags in the io channel,
-* and configure the windows driver to use interrupts or not based on
-* this setting.  This flag is set in uislib after the
-* ULTRA_VHBA_init_channel is called.  All feature bits for all
-* channels should be defined here.  The io channel feature bits are
-* defined right here */
+ * that windows guest can look at the FeatureFlags in the io channel,
+ * and configure the windows driver to use interrupts or not based on
+ * this setting.  This flag is set in uislib after the
+ * ULTRA_VHBA_init_channel is called.  All feature bits for all
+ * channels should be defined here.  The io channel feature bits are
+ * defined right here
+ */
 #define ULTRA_IO_DRIVER_ENABLES_INTS (0x1ULL << 1)
 #define ULTRA_IO_CHANNEL_IS_POLLING (0x1ULL << 3)
 #define ULTRA_IO_IOVM_IS_OK_WITH_DRIVER_DISABLING_INTS (0x1ULL << 4)
@@ -156,7 +166,7 @@ ULTRA_CHANNELCLI_STRING(u32 v)
 struct channel_header {
 	u64 signature;		/* Signature */
 	u32 legacy_state;	/* DEPRECATED - being replaced by */
-	/* /              SrvState, CliStateBoot, and CliStateOS below */
+			/* SrvState, CliStateBoot, and CliStateOS below */
 	u32 header_size;	/* sizeof(struct channel_header) */
 	u64 size;		/* Total size of this channel in bytes */
 	u64 features;		/* Flags to modify behavior */
@@ -169,25 +179,32 @@ struct channel_header {
 	uuid_le zone_uuid;	/* Guid of Channel's zone */
 	u32 cli_str_offset;	/* offset from channel header to
 				 * nul-terminated ClientString (0 if
-				 * ClientString not present) */
+				 * ClientString not present)
+				 */
 	u32 cli_state_boot;	/* CHANNEL_CLIENTSTATE of pre-boot
-				 * EFI client of this channel */
+				 * EFI client of this channel
+				 */
 	u32 cmd_state_cli;	/* CHANNEL_COMMANDSTATE (overloaded in
 				 * Windows drivers, see ServerStateUp,
-				 * ServerStateDown, etc) */
+				 * ServerStateDown, etc)
+				 */
 	u32 cli_state_os;	/* CHANNEL_CLIENTSTATE of Guest OS
-				 * client of this channel */
+				 * client of this channel
+				 */
 	u32 ch_characteristic;	/* CHANNEL_CHARACTERISTIC_<xxx> */
 	u32 cmd_state_srv;	/* CHANNEL_COMMANDSTATE (overloaded in
 				 * Windows drivers, see ServerStateUp,
-				 * ServerStateDown, etc) */
+				 * ServerStateDown, etc)
+				 */
 	u32 srv_state;		/* CHANNEL_SERVERSTATE */
 	u8 cli_error_boot;	/* bits to indicate err states for
 				 * boot clients, so err messages can
-				 * be throttled */
+				 * be throttled
+				 */
 	u8 cli_error_os;	/* bits to indicate err states for OS
 				 * clients, so err messages can be
-				 * throttled */
+				 * throttled
+				 */
 	u8 filler[1];		/* Pad out to 128 byte cacheline */
 	/* Please add all new single-byte values below here */
 	u8 recover_channel;
@@ -205,29 +222,33 @@ struct signal_queue_header {
 	u64 features;		/* Flags to modify behavior */
 	u64 num_sent;		/* Total # of signals placed in this queue */
 	u64 num_overflows;	/* Total # of inserts failed due to
-				 * full queue */
+				 * full queue
+				 */
 	u32 signal_size;	/* Total size of a signal for this queue */
 	u32 max_slots;		/* Max # of slots in queue, 1 slot is
-				 * always empty */
+				 * always empty
+				 */
 	u32 max_signals;	/* Max # of signals in queue
-				 * (MaxSignalSlots-1) */
+				 * (MaxSignalSlots-1)
+				 */
 	u32 head;		/* Queue head signal # */
 	/* 2nd cache line */
 	u64 num_received;	/* Total # of signals removed from this queue */
-	u32 tail;		/* Queue tail signal # (on separate
-				 * cache line) */
+	u32 tail;		/* Queue tail signal */
 	u32 reserved1;		/* Reserved field */
 	u64 reserved2;		/* Reserved field */
 	u64 client_queue;
 	u64 num_irq_received;	/* Total # of Interrupts received.  This
-					 * is incremented by the ISR in the
-					 * guest windows driver */
+				 * is incremented by the ISR in the
+				 * guest windows driver
+				 */
 	u64 num_empty;		/* Number of times that visor_signal_remove
-				 * is called and returned Empty
-				 * Status. */
+				 * is called and returned Empty Status.
+				 */
 	u32 errorflags;		/* Error bits set during SignalReinit
 				 * to denote trouble with client's
-				 * fields */
+				 * fields
+				 */
 	u8 filler[12];		/* Pad out to 64 byte cacheline */
 } __packed;
 
@@ -272,8 +293,7 @@ spar_check_channel_client(void __iomem *ch,
 			return 0;
 		}
 	}
-	if (expected_min_bytes > 0) {	/* caller wants us to verify
-					 * channel size */
+	if (expected_min_bytes > 0) {	/* verify channel size */
 		unsigned long long bytes =
 				readq(&((struct channel_header __iomem *)
 					(ch))->size);
@@ -284,8 +304,7 @@ spar_check_channel_client(void __iomem *ch,
 			return 0;
 		}
 	}
-	if (expected_version > 0) {	/* caller wants us to verify
-					 * channel version */
+	if (expected_version > 0) {	/* verify channel version */
 		unsigned long ver = readl(&((struct channel_header __iomem *)
 				    (ch))->version_id);
 		if (ver != expected_version) {
@@ -295,8 +314,7 @@ spar_check_channel_client(void __iomem *ch,
 			return 0;
 		}
 	}
-	if (expected_signature > 0) {	/* caller wants us to verify
-					 * channel signature */
+	if (expected_signature > 0) {	/* verify channel signature */
 		unsigned long long sig =
 				readq(&((struct channel_header __iomem *)
 					(ch))->signature);
@@ -319,8 +337,7 @@ static inline int spar_check_channel_server(uuid_le typeuuid, char *name,
 					    u64 expected_min_bytes,
 					    u64 actual_bytes)
 {
-	if (expected_min_bytes > 0)	/* caller wants us to verify
-					 * channel size */
+	if (expected_min_bytes > 0)	/* verify channel size */
 		if (actual_bytes < expected_min_bytes) {
 			pr_err("Channel mismatch on channel=%s(%pUL) field=size expected=0x%-8.8llx actual=0x%-8.8llx\n",
 			       name, &typeuuid, expected_min_bytes,
@@ -354,7 +371,8 @@ pathname_last_n_nodes(u8 *s, unsigned int n)
 		if (p == s)
 			break;	/* should never happen, unless someone
 				 * is changing the string while we are
-				 * looking at it!! */
+				 * looking at it!!
+				 */
 		if ((*p == '/') || (*p == '\\'))
 			n--;
 	}
@@ -395,7 +413,8 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id)
 	if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED) {
 		if (readb(&hdr->cli_error_os) != 0) {
 			/* we are in an error msg throttling state;
-			 * come out of it */
+			 * come out of it
+			 */
 			pr_info("%s Channel OS client acquire now successful\n",
 				id);
 			writeb(0, &hdr->cli_error_os);
@@ -404,8 +423,9 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id)
 	}
 
 	/* We have to do it the "hard way".  We transition to BUSY,
-	* and can use the channel iff our competitor has not also
-	* transitioned to BUSY. */
+	 * and can use the channel iff our competitor has not also
+	 * transitioned to BUSY.
+	 */
 	if (readl(&hdr->cli_state_os) != CHANNELCLI_ATTACHED) {
 		if ((readb(&hdr->cli_error_os)
 		     & ULTRA_CLIERROROS_THROTTLEMSG_NOTATTACHED) == 0) {
diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h
index 14e656ff73ec..162ca187a66b 100644
--- a/drivers/staging/unisys/include/iochannel.h
+++ b/drivers/staging/unisys/include/iochannel.h
@@ -6,7 +6,8 @@
 /*
  * Everything needed for IOPart-GuestPart communication is define in
  * this file.  Note: Everything is OS-independent because this file is
- * used by Windows, Linux and possible EFI drivers.  */
+ * used by Windows, Linux and possible EFI drivers.
+ */
 
 /*
  * Communication flow between the IOPart and GuestPart uses the channel headers
@@ -66,21 +67,15 @@
  * IO Partition is defined below.
  */
 
-/*
- * Defines and enums.
- */
-
+/* Defines and enums. */
 #define MINNUM(a, b) (((a) < (b)) ? (a) : (b))
 #define MAXNUM(a, b) (((a) > (b)) ? (a) : (b))
 
-/* these define the two queues per data channel between iopart and
- * ioguestparts
- */
-#define IOCHAN_TO_IOPART 0 /* used by ioguestpart to 'insert' signals to
-			    * iopart */
-
-#define IOCHAN_FROM_IOPART 1 /* used by ioguestpart to 'remove' signals from
-			      * iopart - same queue as previous queue */
+/* define the two queues per data channel between iopart and ioguestparts */
+/* used by ioguestpart to 'insert' signals to iopart */
+#define IOCHAN_TO_IOPART 0
+/* used by ioguestpart to 'remove' signals from iopart, same previous queue */
+#define IOCHAN_FROM_IOPART 1
 
 /* size of cdb - i.e., scsi cmnd */
 #define MAX_CMND_SIZE 16
@@ -92,26 +87,29 @@
 /* various types of network packets that can be sent in cmdrsp */
 enum net_types {
 	NET_RCV_POST = 0,	/* submit buffer to hold receiving
-				 * incoming packet */
+				 * incoming packet
+				 */
 	/* virtnic -> uisnic */
 	NET_RCV,		/* incoming packet received */
 	/* uisnic -> virtpci */
-	NET_XMIT,		/* for outgoing net packets      */
+	NET_XMIT,		/* for outgoing net packets */
 	/* virtnic -> uisnic */
 	NET_XMIT_DONE,		/* outgoing packet xmitted */
 	/* uisnic -> virtpci */
 	NET_RCV_ENBDIS,		/* enable/disable packet reception */
 	/* virtnic -> uisnic */
-	NET_RCV_ENBDIS_ACK,	/* acknowledge enable/disable packet
-				 * reception */
+	NET_RCV_ENBDIS_ACK,	/* acknowledge enable/disable packet */
+				/* reception */
 	/* uisnic -> virtnic */
 	NET_RCV_PROMISC,	/* enable/disable promiscuous mode */
 	/* virtnic -> uisnic */
 	NET_CONNECT_STATUS,	/* indicate the loss or restoration of a network
-				 * connection */
+				 * connection
+				 */
 	/* uisnic -> virtnic */
 	NET_MACADDR,		/* indicates the client has requested to update
-				 * its MAC addr */
+				 * its MAC addr
+				 */
 	NET_MACADDR_ACK,	/* MAC address */
 
 };
@@ -170,51 +168,43 @@ struct vhba_wwnn {
 } __packed;
 
 /* WARNING: Values stired in this structure must contain maximum counts (not
- * maximum values). */
-struct vhba_config_max {	/* 20 bytes */
-	u32 max_channel;	/* maximum channel for devices attached to this
-				 * bus */
-	u32 max_id;		/* maximum SCSI ID for devices attached to this
-				 * bus */
-	u32 max_lun;		/* maximum SCSI LUN for devices attached to this
-				 * bus */
-	u32 cmd_per_lun;	/* maximum number of outstanding commands per
-				 * lun that are allowed at one time */
-	u32 max_io_size;	/* maximum io size for devices attached to this
-				 * bus */
+ * maximum values).
+ */
+struct vhba_config_max {/* 20 bytes */
+	u32 max_channel;/* maximum channel for devices attached to this bus */
+	u32 max_id;	/* maximum SCSI ID for devices attached to bus */
+	u32 max_lun;	/* maximum SCSI LUN for devices attached to bus */
+	u32 cmd_per_lun;/* maximum number of outstanding commands per LUN */
+	u32 max_io_size;/* maximum io size for devices attached to this bus */
 	/* max io size is often determined by the resource of the hba. e.g */
 	/* max scatter gather list length * page size / sector size */
 } __packed;
 
 struct uiscmdrsp_scsi {
-	u64 handle;		/* the handle to the cmd that was received -
-				 * send it back as is in the rsp packet.  */
+	u64 handle;		/* the handle to the cmd that was received */
+				/* send it back as is in the rsp packet.  */
 	u8 cmnd[MAX_CMND_SIZE];	/* the cdb for the command */
 	u32 bufflen;		/* length of data to be transferred out or in */
-	u16 guest_phys_entries;	/* Number of entries in scatter-gather (sg)
-				 * list */
+	u16 guest_phys_entries;	/* Number of entries in scatter-gather list */
 	struct guest_phys_info gpi_list[MAX_PHYS_INFO];	/* physical address
 							 * information for each
-							 * fragment */
+							 * fragment
+							 */
 	enum dma_data_direction  data_dir; /* direction of the data, if any */
-	struct uisscsi_dest vdest;	/* identifies the virtual hba, id,
-					 * channel, lun to which cmd was sent */
+	struct uisscsi_dest vdest;	/* identifies the virtual hba, id, */
+					/* channel, lun to which cmd was sent */
 
-	    /* the following fields are needed to queue the rsp back to cmd
-	     * originator */
-	int linuxstat;		/* the original Linux status - for use by linux
-				 * vdisk code */
+	/* Needed to queue the rsp back to cmd originator */
+	int linuxstat;		/* original Linux status used by linux vdisk */
 	u8 scsistat;		/* the scsi status */
-	u8 addlstat;		/* non-scsi status - covers cases like timeout
-				 * needed by windows guests */
+	u8 addlstat;		/* non-scsi status */
 #define ADDL_SEL_TIMEOUT	4
 
 	/* the following fields are need to determine the result of command */
 	 u8 sensebuf[MAX_SENSE_SIZE];	/* sense info in case cmd failed; */
 	/* it holds the sense_data struct; */
 	/* see that struct for details. */
-	void *vdisk; /* contains pointer to the vdisk so that we can clean up
-		      * when the IO completes. */
+	void *vdisk; /* pointer to the vdisk to clean up when IO completes. */
 	int no_disk_result;
 	/* used to return no disk inquiry result
 	 * when no_disk_result is set to 1,
@@ -258,15 +248,15 @@ struct uiscmdrsp_scsi {
  */
 #define NO_DISK_INQUIRY_RESULT_LEN 36
 
-#define MIN_INQUIRY_RESULT_LEN 5 /* we need at least 5 bytes minimum for inquiry
-				  * result */
+#define MIN_INQUIRY_RESULT_LEN 5 /* 5 bytes minimum for inquiry result */
 
 /* SCSI device version for no disk inquiry result */
 #define SCSI_SPC2_VER 4		/* indicates SCSI SPC2 (SPC3 is 5) */
 
 /* Windows and Linux want different things for a non-existent lun. So, we'll let
  * caller pass in the peripheral qualifier and type.
- * NOTE:[4] SCSI returns (n-4); so we return length-1-4 or length-5. */
+ * NOTE:[4] SCSI returns (n-4); so we return length-1-4 or length-5.
+ */
 
 #define SET_NO_DISK_INQUIRY_RESULT(buf, len, lun, lun0notpresent, notpresent) \
 	do {								\
@@ -305,9 +295,7 @@ struct uiscmdrsp_scsi {
 		}							\
 	} while (0)
 
-/*
- * Struct & Defines to support sense information.
- */
+/* Struct & Defines to support sense information. */
 
 /* The following struct is returned in sensebuf field in uiscmdrsp_scsi.  It is
  * initialized in exactly the manner that is recommended in Windows (hence the
@@ -342,13 +330,11 @@ struct sense_data {
 struct net_pkt_xmt {
 	int len;	/* full length of data in the packet */
 	int num_frags;	/* number of fragments in frags containing data */
-	struct phys_info frags[MAX_PHYS_INFO];	/* physical page information for
-						 * each fragment */
+	struct phys_info frags[MAX_PHYS_INFO];	/* physical page information */
 	char ethhdr[ETH_HEADER_SIZE];	/* the ethernet header  */
 	struct {
-		    /* these are needed for csum at uisnic end */
-		u8 valid;	/* 1 = rest of this struct is valid - else
-				 * ignore */
+		/* these are needed for csum at uisnic end */
+		u8 valid;	/* 1 = struct is valid - else ignore */
 		u8 hrawoffv;	/* 1 = hwrafoff is valid */
 		u8 nhrawoffv;	/* 1 = nhwrafoff is valid */
 		u16 protocol;	/* specifies packet protocol */
@@ -380,16 +366,18 @@ struct net_pkt_xmtdone {
  */
 #define RCVPOST_BUF_SIZE 4032
 #define MAX_NET_RCV_CHAIN \
-	((ETH_MAX_MTU+ETH_HEADER_SIZE + RCVPOST_BUF_SIZE-1) / RCVPOST_BUF_SIZE)
+	((ETH_MAX_MTU + ETH_HEADER_SIZE + RCVPOST_BUF_SIZE - 1) \
+	/ RCVPOST_BUF_SIZE)
 
 struct net_pkt_rcvpost {
 	    /* rcv buf size must be large enough to include ethernet data len +
 	     * ethernet header len - we are choosing 2K because it is guaranteed
-	     * to be describable */
-	    struct phys_info frag;	/* physical page information for the
-					 * single fragment 2K rcv buf */
-	    u64 unique_num;		/* This is used to make sure that
-					 * receive posts are returned to  */
+	     * to be describable
+	     */
+	    struct phys_info frag;	/* physical page information for the */
+					/* single fragment 2K rcv buf */
+	    u64 unique_num;
+	    /* unique_num ensure that receive posts are returned to */
 	    /* the Adapter which we sent them originally. */
 } __packed;
 
@@ -399,8 +387,7 @@ struct net_pkt_rcv {
 	u32 rcv_done_len;	/* length of received data */
 	u8 numrcvbufs;		/* number of receive buffers that contain the */
 	/* incoming data; guest end MUST chain these together. */
-	void *rcvbuf[MAX_NET_RCV_CHAIN];	/* the list of receive buffers
-						 * that must be chained; */
+	void *rcvbuf[MAX_NET_RCV_CHAIN];	/* list of chained rcvbufs */
 	/* each entry is a receive buffer provided by NET_RCV_POST. */
 	/* NOTE: first rcvbuf in the chain will also be provided in net.buf. */
 	u64 unique_num;
@@ -469,18 +456,17 @@ struct uiscmdrsp_scsitaskmgmt {
 #define TASK_MGMT_FAILED  0
 } __packed;
 
-/* The following is used by uissd to send disk add/remove notifications to
- * Guest */
+/* Used by uissd to send disk add/remove notifications to Guest */
 /* Note that the vHba pointer is not used by the Client/Guest side. */
 struct uiscmdrsp_disknotify {
 	u8 add;			/* 0-remove, 1-add */
-	void *v_hba;		/* Pointer to vhba_info for channel info to
-				 * route msg */
+	void *v_hba;		/* channel info to route msg */
 	u32 channel, id, lun;	/* SCSI Path of Disk to added or removed */
 } __packed;
 
 /* The following is used by virthba/vSCSI to send the Acquire/Release commands
- * to the IOVM. */
+ * to the IOVM.
+ */
 struct uiscmdrsp_vdiskmgmt {
 	enum vdisk_mgmt_types vdisktype;
 
@@ -533,8 +519,8 @@ struct uiscmdrsp {
 		struct uiscmdrsp_disknotify disknotify;
 		struct uiscmdrsp_vdiskmgmt vdiskmgmt;
 	};
-	void *private_data;	/* used to send the response when the cmd is
-				 * done (scsi & scsittaskmgmt). */
+	void *private_data;	/* send the response when the cmd is */
+				/* done (scsi & scsittaskmgmt). */
 	struct uiscmdrsp *next;	/* General Purpose Queue Link */
 	struct uiscmdrsp *activeQ_next;	/* Used to track active commands */
 	struct uiscmdrsp *activeQ_prev;	/* Used to track active commands */
@@ -564,15 +550,11 @@ struct spar_io_channel_protocol {
 	} __packed;
 
 #define MAX_CLIENTSTRING_LEN 1024
-	 u8 client_string[MAX_CLIENTSTRING_LEN];/* NULL terminated - so holds
-						 * max - 1 bytes */
+	/* client_string is NULL termimated so holds max -1 bytes */
+	 u8 client_string[MAX_CLIENTSTRING_LEN];
 } __packed;
 
-
-/*
- * INLINE functions for initializing and accessing I/O data channels
- */
-
+/* INLINE functions for initializing and accessing I/O data channels */
 #define SIZEOF_PROTOCOL (COVER(sizeof(struct spar_io_channel_protocol), 64))
 #define SIZEOF_CMDRSP (COVER(sizeof(struct uiscmdrsp), 64))
 
@@ -584,8 +566,7 @@ struct spar_io_channel_protocol {
  * pfn-off-size entires.
  */
 
-/* we deal with 4K page sizes when we it comes to passing page information
- * between */
+/* use 4K page sizes when we it comes to passing page information between */
 /* Guest and IOPartition. */
 #define PI_PAGE_SIZE  0x1000
 #define PI_PAGE_MASK  0x0FFF
@@ -594,18 +575,8 @@ struct spar_io_channel_protocol {
  * room)
  */
 static inline  u16
-add_physinfo_entries(u32 inp_pfn,	/* input - specifies the pfn to be used
-					 * to add entries */
-		     u16 inp_off,	/* input - specifies the off to be used
-					 * to add entries */
-		     u32 inp_len,	/* input - specifies the len to be used
-					 * to add entries */
-		     u16 index,		/* input - index in array at which new
-					 * entries are added */
-		     u16 max_pi_arr_entries,	/* input - specifies the maximum
-						 * entries pi_arr can hold */
-		     struct phys_info pi_arr[]) /* input & output - array to
-						  * which entries are added */
+add_physinfo_entries(u32 inp_pfn, u16 inp_off, u32 inp_len, u16 index,
+		     u16 max_pi_arr_entries, struct phys_info pi_arr[])
 {
 	u32 len;
 	u16 i, firstlen;
diff --git a/drivers/staging/unisys/include/vbushelper.h b/drivers/staging/unisys/include/vbushelper.h
index f272975b2920..f1b6aacb79d7 100644
--- a/drivers/staging/unisys/include/vbushelper.h
+++ b/drivers/staging/unisys/include/vbushelper.h
@@ -19,7 +19,8 @@
 #define __VBUSHELPER_H__
 
 /* TARGET_HOSTNAME specified as -DTARGET_HOSTNAME=\"thename\" on the
- * command line */
+ * command line
+ */
 
 #define TARGET_HOSTNAME "linuxguest"
 
diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h
index 9235536fa75f..2a64a9ce0208 100644
--- a/drivers/staging/unisys/include/visorbus.h
+++ b/drivers/staging/unisys/include/visorbus.h
@@ -140,8 +140,8 @@ struct visor_device {
 	struct {
 		int major, minor;
 		void *attr;	/* private use by devmajorminor_attr.c you can
-				   * change this constant to whatever you
-				   * want; */
+				 * change this constant to whatever you want
+				 */
 	} devnodes[5];
 	/* the code will detect and behave appropriately) */
 	struct semaphore visordriver_callback_lock;
diff --git a/drivers/staging/unisys/visorbus/Kconfig b/drivers/staging/unisys/visorbus/Kconfig
index 9b299ac86015..511388075ffa 100644
--- a/drivers/staging/unisys/visorbus/Kconfig
+++ b/drivers/staging/unisys/visorbus/Kconfig
@@ -6,4 +6,9 @@ config UNISYS_VISORBUS
 	tristate "Unisys visorbus driver"
 	depends on UNISYSSPAR
 	---help---
-	If you say Y here, you will enable the Unisys visorbus driver.
+	The visorbus driver is a virtualized bus for the Unisys s-Par firmware.
+	Virtualized devices allow Linux guests on a system to share disks and
+	network cards that do not have SR-IOV support, and to be accessed using
+	the partition desktop application. The visorbus driver is required to
+	discover devices on an s-Par guest, and must be present for any other
+	s-Par guest driver to function correctly.
diff --git a/drivers/staging/unisys/visorbus/controlvmcompletionstatus.h b/drivers/staging/unisys/visorbus/controlvmcompletionstatus.h
index 3c97ebac4f32..23ad0ea6c9fc 100644
--- a/drivers/staging/unisys/visorbus/controlvmcompletionstatus.h
+++ b/drivers/staging/unisys/visorbus/controlvmcompletionstatus.h
@@ -39,7 +39,8 @@
 #define CONTROLVM_RESP_ERROR_MAX_DEVICES        202	/* DEVICE_CREATE */
 /* Payload and Parameter Related------------------------------------[400-499] */
 #define CONTROLVM_RESP_ERROR_PAYLOAD_INVALID	400	/* SWITCH_ATTACHEXTPORT,
-							 * DEVICE_CONFIGURE */
+							 * DEVICE_CONFIGURE
+							 */
 #define CONTROLVM_RESP_ERROR_INITIATOR_PARAMETER_INVALID 401	/* Multiple */
 #define CONTROLVM_RESP_ERROR_TARGET_PARAMETER_INVALID 402 /* DEVICE_CONFIGURE */
 #define CONTROLVM_RESP_ERROR_CLIENT_PARAMETER_INVALID 403 /* DEVICE_CONFIGURE */
@@ -48,36 +49,43 @@
 							 * BUS_CONFIGURE,
 							 * DEVICE_CREATE,
 							 * DEVICE_CONFIG
-							 * DEVICE_DESTROY */
+							 * DEVICE_DESTROY
+							 */
 #define CONTROLVM_RESP_ERROR_DEVICE_INVALID	501 /* SWITCH_ATTACHINTPORT */
 						    /* DEVICE_CREATE,
 						     * DEVICE_CONFIGURE,
-						     * DEVICE_DESTROY */
+						     * DEVICE_DESTROY
+						     */
 #define CONTROLVM_RESP_ERROR_CHANNEL_INVALID	502 /* DEVICE_CREATE,
-						     * DEVICE_CONFIGURE */
+						     * DEVICE_CONFIGURE
+						     */
 /* Partition Driver Callback Interface----------------------[600-699] */
 #define CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE 604	/* BUS_CREATE,
 							 * BUS_DESTROY,
 							 * DEVICE_CREATE,
-							 * DEVICE_DESTROY */
+							 * DEVICE_DESTROY
+							 */
 /* Unable to invoke VIRTPCI callback */
 #define CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR 605
 							/* BUS_CREATE,
 							 * BUS_DESTROY,
 							 * DEVICE_CREATE,
-							 * DEVICE_DESTROY */
+							 * DEVICE_DESTROY
+							 */
 /* VIRTPCI Callback returned error */
 #define CONTROLVM_RESP_ERROR_GENERIC_DRIVER_CALLBACK_ERROR 606
 							/* SWITCH_ATTACHEXTPORT,
 							 * SWITCH_DETACHEXTPORT
-							 * DEVICE_CONFIGURE */
+							 * DEVICE_CONFIGURE
+							 */
 
 /* generic device callback returned error */
 /* Bus Related------------------------------------------------------[700-799] */
 #define CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED 700	/* BUS_DESTROY */
 /* Channel Related--------------------------------------------------[800-899] */
 #define CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN 800	/* GET_CHANNELINFO,
-							 * DEVICE_DESTROY */
+							 * DEVICE_DESTROY
+							 */
 #define CONTROLVM_RESP_ERROR_CHANNEL_SIZE_TOO_SMALL 801	/* DEVICE_CREATE */
 /* Chipset Shutdown Related---------------------------------------[1000-1099] */
 #define CONTROLVM_RESP_ERROR_CHIPSET_SHUTDOWN_FAILED            1000
diff --git a/drivers/staging/unisys/visorbus/periodic_work.c b/drivers/staging/unisys/visorbus/periodic_work.c
index 115b7aa9560a..00b152764f84 100644
--- a/drivers/staging/unisys/visorbus/periodic_work.c
+++ b/drivers/staging/unisys/visorbus/periodic_work.c
@@ -43,11 +43,12 @@ static void periodic_work_func(struct work_struct *work)
 	(*pw->workfunc)(pw->workfuncarg);
 }
 
-struct periodic_work *visor_periodic_work_create(ulong jiffy_interval,
-					struct workqueue_struct *workqueue,
-					void (*workfunc)(void *),
-					void *workfuncarg,
-					const char *devnam)
+struct periodic_work
+*visor_periodic_work_create(ulong jiffy_interval,
+			    struct workqueue_struct *workqueue,
+			    void (*workfunc)(void *),
+			    void *workfuncarg,
+			    const char *devnam)
 {
 	struct periodic_work *pw;
 
diff --git a/drivers/staging/unisys/visorbus/vbuschannel.h b/drivers/staging/unisys/visorbus/vbuschannel.h
index 80e64477e547..90fa12e62f26 100644
--- a/drivers/staging/unisys/visorbus/vbuschannel.h
+++ b/drivers/staging/unisys/visorbus/vbuschannel.h
@@ -36,10 +36,11 @@ static const uuid_le spar_vbus_channel_protocol_uuid =
 #define SPAR_VBUS_CHANNEL_PROTOCOL_SIGNATURE ULTRA_CHANNEL_PROTOCOL_SIGNATURE
 
 /* Must increment this whenever you insert or delete fields within this channel
-* struct.  Also increment whenever you change the meaning of fields within this
-* channel struct so as to break pre-existing software.  Note that you can
-* usually add fields to the END of the channel struct withOUT needing to
-* increment this. */
+ * struct.  Also increment whenever you change the meaning of fields within this
+ * channel struct so as to break pre-existing software.  Note that you can
+ * usually add fields to the END of the channel struct withOUT needing to
+ * increment this.
+ */
 #define SPAR_VBUS_CHANNEL_PROTOCOL_VERSIONID 1
 
 #define SPAR_VBUS_CHANNEL_OK_CLIENT(ch)       \
diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c
index a272b48bab28..eac97d22278a 100644
--- a/drivers/staging/unisys/visorbus/visorbus_main.c
+++ b/drivers/staging/unisys/visorbus/visorbus_main.c
@@ -1078,7 +1078,8 @@ away:
 }
 
 /* Write the contents of <info> to the struct
- * spar_vbus_channel_protocol.chp_info. */
+ * spar_vbus_channel_protocol.chp_info.
+ */
 
 static int
 write_vbus_chp_info(struct visorchannel *chan,
@@ -1096,7 +1097,8 @@ write_vbus_chp_info(struct visorchannel *chan,
 }
 
 /* Write the contents of <info> to the struct
- * spar_vbus_channel_protocol.bus_info. */
+ * spar_vbus_channel_protocol.bus_info.
+ */
 
 static int
 write_vbus_bus_info(struct visorchannel *chan,
@@ -1370,7 +1372,8 @@ pause_state_change_complete(struct visor_device *dev, int status)
 
 	/* Notify the chipset driver that the pause is complete, which
 	* will presumably want to send some sort of response to the
-	* initiator. */
+	* initiator.
+	*/
 	(*chipset_responders.device_pause) (dev, status);
 }
 
@@ -1390,7 +1393,8 @@ resume_state_change_complete(struct visor_device *dev, int status)
 
 	/* Notify the chipset driver that the resume is complete,
 	 * which will presumably want to send some sort of response to
-	 * the initiator. */
+	 * the initiator.
+	 */
 	(*chipset_responders.device_resume) (dev, status);
 }
 
@@ -1437,7 +1441,8 @@ initiate_chipset_device_pause_resume(struct visor_device *dev, bool is_pause)
 		 * existing problem prevents us from ever getting a bus
 		 * resume...  This hack would fail to work should we
 		 * ever have a bus that contains NO devices, since we
-		 * would never even get here in that case. */
+		 * would never even get here in that case.
+		 */
 		fix_vbus_dev_info(dev);
 		if (!drv->resume)
 			goto away;
diff --git a/drivers/staging/unisys/visorbus/visorchannel.c b/drivers/staging/unisys/visorbus/visorchannel.c
index a4e117f101cf..891b8db7c5ec 100644
--- a/drivers/staging/unisys/visorbus/visorchannel.c
+++ b/drivers/staging/unisys/visorbus/visorchannel.c
@@ -41,8 +41,8 @@ struct visorchannel {
 	struct channel_header chan_hdr;
 	uuid_le guid;
 	ulong size;
-	bool needs_lock;	/* channel creator knows if more than one
-				 * thread will be inserting or removing */
+	bool needs_lock;	/* channel creator knows if more than one */
+				/* thread will be inserting or removing */
 	spinlock_t insert_lock; /* protect head writes in chan_hdr */
 	spinlock_t remove_lock;	/* protect tail writes in chan_hdr */
 
diff --git a/drivers/staging/unisys/visorbus/vmcallinterface.h b/drivers/staging/unisys/visorbus/vmcallinterface.h
index c8d8483bd4df..c043fa41ceda 100644
--- a/drivers/staging/unisys/visorbus/vmcallinterface.h
+++ b/drivers/staging/unisys/visorbus/vmcallinterface.h
@@ -43,20 +43,15 @@ enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples  */
 	     * - the 0x01 identifies it as the 1st instance of a VMCALL_VIRTPART
 	     *   type of VMCALL
 	     */
-
-	VMCALL_IO_CONTROLVM_ADDR = 0x0501,	/* used by all Guests, not just
-						 * IO */
-	VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET = 0x0708, /* Allow caller to
-							  * query virtual time
-							  * offset */
-	VMCALL_POST_CODE_LOGEVENT = 0x070B,	/* LOGEVENT Post Code (RDX) with
-						 * specified subsystem mask (RCX
-						 * - monitor_subsystems.h) and
-						 * severity (RDX) */
-	VMCALL_UPDATE_PHYSICAL_TIME = 0x0a02	/* Allow
-						 * ULTRA_SERVICE_CAPABILITY_TIME
-						 * capable guest to make
-						 * VMCALL */
+	/* used by all Guests, not just IO */
+	VMCALL_IO_CONTROLVM_ADDR = 0x0501,
+	/* Allow caller to query virtual time offset */
+	VMCALL_QUERY_GUEST_VIRTUAL_TIME_OFFSET = 0x0708,
+	/* LOGEVENT Post Code (RDX) with specified subsystem mask */
+	/* (RCX - monitor_subsystems.h) and severity (RDX) */
+	VMCALL_POST_CODE_LOGEVENT = 0x070B,
+	/* Allow ULTRA_SERVICE_CAPABILITY_TIME capable guest to make VMCALL */
+	VMCALL_UPDATE_PHYSICAL_TIME = 0x0a02
 };
 
 #define VMCALL_SUCCESS 0
@@ -74,7 +69,8 @@ enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples  */
 	unisys_extended_vmcall(method, param1, param2, param3)
 
     /* The following uses VMCALL_POST_CODE_LOGEVENT interface but is currently
-     * not used much */
+     * not used much
+     */
 #define ISSUE_IO_VMCALL_POSTCODE_SEVERITY(postcode, severity)		\
 	ISSUE_IO_EXTENDED_VMCALL(VMCALL_POST_CODE_LOGEVENT, severity,	\
 				 MDS_APPOS, postcode)
@@ -84,11 +80,11 @@ enum vmcall_monitor_interface_method_tuple { /* VMCALL identification tuples  */
 
 /* Parameters to VMCALL_IO_CONTROLVM_ADDR interface */
 struct vmcall_io_controlvm_addr_params {
-	    /* The Guest-relative physical address of the ControlVm channel.
-	    * This VMCall fills this in with the appropriate address. */
+	/* The Guest-relative physical address of the ControlVm channel. */
+	/* This VMCall fills this in with the appropriate address. */
 	u64 address;	/* contents provided by this VMCALL (OUT) */
-	    /* the size of the ControlVm channel in bytes This VMCall fills this
-	    * in with the appropriate address. */
+	/* the size of the ControlVm channel in bytes This VMCall fills this */
+	/* in with the appropriate address. */
 	u32 channel_bytes;	/* contents provided by this VMCALL (OUT) */
 	u8 unused[4];		/* Unused Bytes in the 64-Bit Aligned Struct */
 } __packed;
diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c
index c119f20dfd44..d5178b44ba8c 100644
--- a/drivers/staging/unisys/visorhba/visorhba_main.c
+++ b/drivers/staging/unisys/visorhba/visorhba_main.c
@@ -453,7 +453,6 @@ visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	struct uiscmdrsp *cmdrsp;
 	struct scsi_device *scsidev = scsicmd->device;
 	int insert_location;
-	unsigned char op;
 	unsigned char *cdb = scsicmd->cmnd;
 	struct Scsi_Host *scsihost = scsidev->host;
 	unsigned int i;
@@ -461,7 +460,6 @@ visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
 		(struct visorhba_devdata *)scsihost->hostdata;
 	struct scatterlist *sg = NULL;
 	struct scatterlist *sglist = NULL;
-	int err = 0;
 
 	if (devdata->serverdown || devdata->serverchangingstate)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -496,10 +494,8 @@ visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	if (cmdrsp->scsi.bufflen > devdata->max_buff_len)
 		devdata->max_buff_len = cmdrsp->scsi.bufflen;
 
-	if (scsi_sg_count(scsicmd) > MAX_PHYS_INFO) {
-		err = SCSI_MLQUEUE_DEVICE_BUSY;
+	if (scsi_sg_count(scsicmd) > MAX_PHYS_INFO)
 		goto err_del_scsipending_ent;
-	}
 
 	/* convert buffer to phys information  */
 	/* buffer is scatterlist - copy it out */
@@ -511,19 +507,17 @@ visorhba_queue_command_lck(struct scsi_cmnd *scsicmd,
 	}
 	cmdrsp->scsi.guest_phys_entries = scsi_sg_count(scsicmd);
 
-	op = cdb[0];
 	if (!visorchannel_signalinsert(devdata->dev->visorchannel,
 				       IOCHAN_TO_IOPART,
-				       cmdrsp)) {
+				       cmdrsp))
 		/* queue must be full and we aren't going to wait */
-		err = SCSI_MLQUEUE_DEVICE_BUSY;
 		goto err_del_scsipending_ent;
-	}
+
 	return 0;
 
 err_del_scsipending_ent:
 	del_scsipending_ent(devdata, insert_location);
-	return err;
+	return SCSI_MLQUEUE_DEVICE_BUSY;
 }
 
 /**
@@ -759,11 +753,9 @@ do_scsi_linuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd)
 	struct visorhba_devdata *devdata;
 	struct visordisk_info *vdisk;
 	struct scsi_device *scsidev;
-	struct sense_data *sd;
 
 	scsidev = scsicmd->device;
 	memcpy(scsicmd->sense_buffer, cmdrsp->scsi.sensebuf, MAX_SENSE_SIZE);
-	sd = (struct sense_data *)scsicmd->sense_buffer;
 
 	/* Do not log errors for disk-not-present inquiries */
 	if ((cmdrsp->scsi.cmnd[0] == INQUIRY) &&
diff --git a/drivers/staging/unisys/visorinput/Kconfig b/drivers/staging/unisys/visorinput/Kconfig
index d83deb4137e8..3476d419d32c 100644
--- a/drivers/staging/unisys/visorinput/Kconfig
+++ b/drivers/staging/unisys/visorinput/Kconfig
@@ -6,5 +6,10 @@ config UNISYS_VISORINPUT
 	tristate "Unisys visorinput driver"
 	depends on UNISYSSPAR && UNISYS_VISORBUS && FB
 	---help---
-	If you say Y here, you will enable the Unisys visorinput driver.
+	The Unisys s-Par visorinput driver provides a virtualized system
+	console (keyboard and mouse) that is accessible through the
+	s-Par firmware's user interface. s-Par provides video using the EFI
+	GOP protocol, so If this driver is not present, the Linux guest should
+	still boot with visible output in the partition desktop, but keyboard
+	and mouse interaction will not be available.
 
diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c
index 5c16f6634368..38d4d5b884df 100644
--- a/drivers/staging/unisys/visorinput/visorinput.c
+++ b/drivers/staging/unisys/visorinput/visorinput.c
@@ -523,7 +523,7 @@ visorinput_channel_interrupt(struct visor_device *dev)
 	struct ultra_inputreport r;
 	int scancode, keycode;
 	struct input_dev *visorinput_dev;
-	int xmotion, ymotion, zmotion, button;
+	int xmotion, ymotion, button;
 	int i;
 
 	struct visorinput_devdata *devdata = dev_get_drvdata(&dev->device);
@@ -604,12 +604,10 @@ visorinput_channel_interrupt(struct visor_device *dev)
 			}
 			break;
 		case inputaction_wheel_rotate_away:
-			zmotion = r.activity.arg1;
 			input_report_rel(visorinput_dev, REL_WHEEL, 1);
 			input_sync(visorinput_dev);
 			break;
 		case inputaction_wheel_rotate_toward:
-			zmotion = r.activity.arg1;
 			input_report_rel(visorinput_dev, REL_WHEEL, -1);
 			input_sync(visorinput_dev);
 			break;
diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c
index 296b11cea247..05194707278a 100644
--- a/drivers/staging/unisys/visornic/visornic_main.c
+++ b/drivers/staging/unisys/visornic/visornic_main.c
@@ -1742,7 +1742,6 @@ poll_for_irq(unsigned long v)
 	atomic_set(&devdata->interrupt_rcvd, 0);
 
 	mod_timer(&devdata->irq_poll_timer, msecs_to_jiffies(2));
-
 }
 
 /**
diff --git a/drivers/staging/vme/devices/vme_pio2_cntr.c b/drivers/staging/vme/devices/vme_pio2_cntr.c
index 6335471faa36..486c30c4956f 100644
--- a/drivers/staging/vme/devices/vme_pio2_cntr.c
+++ b/drivers/staging/vme/devices/vme_pio2_cntr.c
@@ -61,7 +61,7 @@ int pio2_cntr_reset(struct pio2_card *card)
 	/* Ensure all counter interrupts are cleared */
 	do {
 		retval = vme_master_read(card->window, &reg, 1,
-			PIO2_REGS_INT_STAT_CNTR);
+					 PIO2_REGS_INT_STAT_CNTR);
 		if (retval < 0)
 			return retval;
 	} while (reg != 0);
diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c
index 35c6ce5047de..4f3cdbcedb3e 100644
--- a/drivers/staging/vme/devices/vme_pio2_core.c
+++ b/drivers/staging/vme/devices/vme_pio2_core.c
@@ -90,7 +90,7 @@ static void pio2_int(int level, int vector, void *ptr)
 	case 4:
 		/* Channels 0 to 7 */
 		retval = vme_master_read(card->window, &reg, 1,
-			PIO2_REGS_INT_STAT[vec - 1]);
+					 PIO2_REGS_INT_STAT[vec - 1]);
 		if (retval < 0) {
 			dev_err(&card->vdev->dev,
 				"Unable to read IRQ status register\n");
@@ -100,8 +100,8 @@ static void pio2_int(int level, int vector, void *ptr)
 			channel = ((vec - 1) * 8) + i;
 			if (reg & PIO2_CHANNEL_BIT[channel])
 				dev_info(&card->vdev->dev,
-					"Interrupt on I/O channel %d\n",
-					channel);
+					 "Interrupt on I/O channel %d\n",
+					 channel);
 		}
 		break;
 	case 5:
@@ -215,7 +215,7 @@ static int pio2_probe(struct vme_dev *vdev)
 	u8 reg;
 	int vec;
 
-	card = kzalloc(sizeof(struct pio2_card), GFP_KERNEL);
+	card = kzalloc(sizeof(*card), GFP_KERNEL);
 	if (!card) {
 		retval = -ENOMEM;
 		goto err_struct;
@@ -230,7 +230,7 @@ static int pio2_probe(struct vme_dev *vdev)
 	card->vdev = vdev;
 
 	for (i = 0; i < PIO2_VARIANT_LENGTH; i++) {
-		if (isdigit(card->variant[i]) == 0) {
+		if (!isdigit(card->variant[i])) {
 			dev_err(&card->vdev->dev, "Variant invalid\n");
 			retval = -EINVAL;
 			goto err_variant;
@@ -289,7 +289,7 @@ static int pio2_probe(struct vme_dev *vdev)
 	}
 
 	retval = vme_master_set(card->window, 1, card->base, 0x10000, VME_A24,
-		(VME_SCT | VME_USER | VME_DATA), VME_D16);
+				VME_SCT | VME_USER | VME_DATA, VME_D16);
 	if (retval) {
 		dev_err(&card->vdev->dev,
 			"Unable to configure VME master resource\n");
@@ -335,7 +335,7 @@ static int pio2_probe(struct vme_dev *vdev)
 
 	/* Set VME vector */
 	retval = vme_master_write(card->window, &card->irq_vector, 1,
-		PIO2_REGS_VME_VECTOR);
+				  PIO2_REGS_VME_VECTOR);
 	if (retval < 0)
 		return retval;
 
@@ -343,7 +343,7 @@ static int pio2_probe(struct vme_dev *vdev)
 	vec = card->irq_vector | PIO2_VME_VECTOR_SPUR;
 
 	retval = vme_irq_request(vdev, card->irq_level, vec,
-		&pio2_int, (void *)card);
+				 &pio2_int, card);
 	if (retval < 0) {
 		dev_err(&card->vdev->dev,
 			"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
@@ -356,7 +356,7 @@ static int pio2_probe(struct vme_dev *vdev)
 		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
 
 		retval = vme_irq_request(vdev, card->irq_level, vec,
-			&pio2_int, (void *)card);
+					 &pio2_int, card);
 		if (retval < 0) {
 			dev_err(&card->vdev->dev,
 				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
@@ -370,7 +370,7 @@ static int pio2_probe(struct vme_dev *vdev)
 		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
 
 		retval = vme_irq_request(vdev, card->irq_level, vec,
-			&pio2_int, (void *)card);
+			&pio2_int, card);
 		if (retval < 0) {
 			dev_err(&card->vdev->dev,
 				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
@@ -397,7 +397,7 @@ static int pio2_probe(struct vme_dev *vdev)
 	dev_set_drvdata(&card->vdev->dev, card);
 
 	dev_info(&card->vdev->dev,
-		"PIO2 (variant %s) configured at 0x%lx\n", card->variant,
+		 "PIO2 (variant %s) configured at 0x%lx\n", card->variant,
 		card->base);
 
 	return 0;
diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
index 77901b345a71..df992c3cb5ce 100644
--- a/drivers/staging/vme/devices/vme_pio2_gpio.c
+++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
@@ -37,14 +37,13 @@ static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	struct pio2_card *card = gpio_to_pio2_card(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
-		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-
+	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
 		dev_err(&card->vdev->dev, "Channel not available as input\n");
 		return 0;
 	}
 
 	retval = vme_master_read(card->window, &reg, 1,
-		PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
+				 PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
 	if (retval < 0) {
 		dev_err(&card->vdev->dev, "Unable to read from GPIO\n");
 		return 0;
@@ -67,16 +66,15 @@ static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return 0;
 }
 
-static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
-	int value)
+static void pio2_gpio_set(struct gpio_chip *chip,
+			  unsigned int offset, int value)
 {
 	u8 reg;
 	int retval;
 	struct pio2_card *card = gpio_to_pio2_card(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
-		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-
+	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
 		dev_err(&card->vdev->dev, "Channel not available as output\n");
 		return;
 	}
@@ -89,7 +87,7 @@ static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
 			~PIO2_CHANNEL_BIT[offset];
 
 	retval = vme_master_write(card->window, &reg, 1,
-		PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
+				  PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
 	if (retval < 0) {
 		dev_err(&card->vdev->dev, "Unable to write to GPIO\n");
 		return;
@@ -105,7 +103,7 @@ static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
 	struct pio2_card *card = gpio_to_pio2_card(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
-		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
 		dev_err(&card->vdev->dev,
 			"Channel directionality not configurable at runtime\n");
 
@@ -124,7 +122,7 @@ static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
 	struct pio2_card *card = gpio_to_pio2_card(chip);
 
 	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
-		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
 		dev_err(&card->vdev->dev,
 			"Channel directionality not configurable at runtime\n");
 
@@ -150,7 +148,7 @@ int pio2_gpio_reset(struct pio2_card *card)
 	/* Zero output registers */
 	for (i = 0; i < 4; i++) {
 		retval = vme_master_write(card->window, &data, 1,
-			PIO2_REGS_DATA[i]);
+					  PIO2_REGS_DATA[i]);
 		if (retval < 0)
 			return retval;
 		card->bank[i].value = 0;
@@ -159,12 +157,12 @@ int pio2_gpio_reset(struct pio2_card *card)
 	/* Set input interrupt masks */
 	for (i = 0; i < 4; i++) {
 		retval = vme_master_write(card->window, &data, 1,
-			PIO2_REGS_INT_MASK[i * 2]);
+					  PIO2_REGS_INT_MASK[i * 2]);
 		if (retval < 0)
 			return retval;
 
 		retval = vme_master_write(card->window, &data, 1,
-			PIO2_REGS_INT_MASK[(i * 2) + 1]);
+					  PIO2_REGS_INT_MASK[(i * 2) + 1]);
 		if (retval < 0)
 			return retval;
 
@@ -176,7 +174,7 @@ int pio2_gpio_reset(struct pio2_card *card)
 	for (i = 0; i < 4; i++) {
 		do {
 			retval = vme_master_read(card->window, &data, 1,
-				PIO2_REGS_INT_STAT[i]);
+						 PIO2_REGS_INT_STAT[i]);
 			if (retval < 0)
 				return retval;
 		} while (data != 0);
@@ -192,7 +190,7 @@ int pio2_gpio_init(struct pio2_card *card)
 
 	label = kasprintf(GFP_KERNEL,
 			  "%s@%s", driver_name, dev_name(&card->vdev->dev));
-	if (label == NULL)
+	if (!label)
 		return -ENOMEM;
 
 	card->gc.label = label;
@@ -207,7 +205,7 @@ int pio2_gpio_init(struct pio2_card *card)
 	card->gc.set = pio2_gpio_set;
 
 	/* This function adds a memory mapped GPIO chip */
-	retval = gpiochip_add(&(card->gc));
+	retval = gpiochip_add(&card->gc);
 	if (retval) {
 		dev_err(&card->vdev->dev, "Unable to register GPIO\n");
 		kfree(card->gc.label);
@@ -220,7 +218,7 @@ void pio2_gpio_exit(struct pio2_card *card)
 {
 	const char *label = card->gc.label;
 
-	gpiochip_remove(&(card->gc));
+	gpiochip_remove(&card->gc);
 	kfree(label);
 }
 
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index 8e61a3b3e7e4..b95883bc68fe 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -308,8 +308,8 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 		switch (cmd) {
 		case VME_IRQ_GEN:
 			copied = copy_from_user(&irq_req, argp,
-						sizeof(struct vme_irq_id));
-			if (copied != 0) {
+						sizeof(irq_req));
+			if (copied) {
 				pr_warn("Partial copy from userspace\n");
 				return -EFAULT;
 			}
@@ -322,7 +322,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 	case MASTER_MINOR:
 		switch (cmd) {
 		case VME_GET_MASTER:
-			memset(&master, 0, sizeof(struct vme_master));
+			memset(&master, 0, sizeof(master));
 
 			/* XXX	We do not want to push aspace, cycle and width
 			 *	to userspace as they are
@@ -334,8 +334,8 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 						&master.cycle, &master.dwidth);
 
 			copied = copy_to_user(argp, &master,
-					      sizeof(struct vme_master));
-			if (copied != 0) {
+					      sizeof(master));
+			if (copied) {
 				pr_warn("Partial copy to userspace\n");
 				return -EFAULT;
 			}
@@ -350,7 +350,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 			}
 
 			copied = copy_from_user(&master, argp, sizeof(master));
-			if (copied != 0) {
+			if (copied) {
 				pr_warn("Partial copy from userspace\n");
 				return -EFAULT;
 			}
@@ -368,7 +368,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 	case SLAVE_MINOR:
 		switch (cmd) {
 		case VME_GET_SLAVE:
-			memset(&slave, 0, sizeof(struct vme_slave));
+			memset(&slave, 0, sizeof(slave));
 
 			/* XXX	We do not want to push aspace, cycle and width
 			 *	to userspace as they are
@@ -379,8 +379,8 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 					       &slave.aspace, &slave.cycle);
 
 			copied = copy_to_user(argp, &slave,
-					      sizeof(struct vme_slave));
-			if (copied != 0) {
+					      sizeof(slave));
+			if (copied) {
 				pr_warn("Partial copy to userspace\n");
 				return -EFAULT;
 			}
@@ -390,7 +390,7 @@ static int vme_user_ioctl(struct inode *inode, struct file *file,
 		case VME_SET_SLAVE:
 
 			copied = copy_from_user(&slave, argp, sizeof(slave));
-			if (copied != 0) {
+			if (copied) {
 				pr_warn("Partial copy from userspace\n");
 				return -EFAULT;
 			}
@@ -757,7 +757,7 @@ static int __init vme_user_init(void)
 	 * we just change the code in vme_user_match().
 	 */
 	retval = vme_register_driver(&vme_user_driver, VME_MAX_SLOTS);
-	if (retval != 0)
+	if (retval)
 		goto err_reg;
 
 	return retval;
diff --git a/drivers/staging/vme/devices/vme_user.h b/drivers/staging/vme/devices/vme_user.h
index b8cc7bc78a73..a6cb75686fa4 100644
--- a/drivers/staging/vme/devices/vme_user.h
+++ b/drivers/staging/vme/devices/vme_user.h
@@ -20,7 +20,6 @@ struct vme_master {
 #endif
 } __packed;
 
-
 /*
  * IOCTL Commands and structures
  */
@@ -28,7 +27,6 @@ struct vme_master {
 /* Magic number for use in ioctls */
 #define VME_IOC_MAGIC 0xAE
 
-
 /* VMEbus Slave Window Configuration Structure */
 struct vme_slave {
 	__u32 enable;		/* State of Window */
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index e5be261f2e69..9417c935fc30 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: baseband.c
  *
diff --git a/drivers/staging/vt6656/baseband.h b/drivers/staging/vt6656/baseband.h
index 771ea4054174..807a5809b5d9 100644
--- a/drivers/staging/vt6656/baseband.h
+++ b/drivers/staging/vt6656/baseband.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: baseband.h
  *
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index 927243ebcb56..a382fc6aa9d3 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: card.c
  * Purpose: Provide functions to setup NIC operation mode
diff --git a/drivers/staging/vt6656/card.h b/drivers/staging/vt6656/card.h
index 03fc1678896b..c2cde7e92c8f 100644
--- a/drivers/staging/vt6656/card.h
+++ b/drivers/staging/vt6656/card.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: card.h
  *
diff --git a/drivers/staging/vt6656/channel.c b/drivers/staging/vt6656/channel.c
index 8412d0532fb2..a0fe288c1322 100644
--- a/drivers/staging/vt6656/channel.c
+++ b/drivers/staging/vt6656/channel.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: channel.c
  *
diff --git a/drivers/staging/vt6656/channel.h b/drivers/staging/vt6656/channel.h
index 21c080803714..fcea6995fe26 100644
--- a/drivers/staging/vt6656/channel.h
+++ b/drivers/staging/vt6656/channel.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: channel.h
  *
diff --git a/drivers/staging/vt6656/desc.h b/drivers/staging/vt6656/desc.h
index f79af8513ff2..59e3071021bd 100644
--- a/drivers/staging/vt6656/desc.h
+++ b/drivers/staging/vt6656/desc.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: desc.h
  *
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index dec36f296f3d..76b5f4127f95 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: device.h
  *
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index e6367ed3b0bb..6019aac8bdd5 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: dpc.c
  *
diff --git a/drivers/staging/vt6656/dpc.h b/drivers/staging/vt6656/dpc.h
index 95e0e83a487e..5a92bd86cee2 100644
--- a/drivers/staging/vt6656/dpc.h
+++ b/drivers/staging/vt6656/dpc.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: dpc.h
  *
diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index d440f284bf18..1b48f9c86f63 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: baseband.c
  *
diff --git a/drivers/staging/vt6656/firmware.h b/drivers/staging/vt6656/firmware.h
index d594dbe1c147..e2b54acb8fdb 100644
--- a/drivers/staging/vt6656/firmware.h
+++ b/drivers/staging/vt6656/firmware.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: firmware.h
  *
diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c
index 14b8ebc6508d..8d05acbc0e23 100644
--- a/drivers/staging/vt6656/int.c
+++ b/drivers/staging/vt6656/int.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: int.c
  *
diff --git a/drivers/staging/vt6656/int.h b/drivers/staging/vt6656/int.h
index 154605c63947..97e55bacbb7c 100644
--- a/drivers/staging/vt6656/int.h
+++ b/drivers/staging/vt6656/int.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: int.h
  *
diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c
index 181745d8e250..0246a8fc47fe 100644
--- a/drivers/staging/vt6656/key.c
+++ b/drivers/staging/vt6656/key.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: key.c
  *
@@ -163,7 +159,6 @@ int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 	}
 
-
 	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
 		vnt_set_keymode(hw, mac_addr, key, VNT_KEY_PAIRWISE,
 					key_dec_mode, true);
diff --git a/drivers/staging/vt6656/key.h b/drivers/staging/vt6656/key.h
index 3cb1291055ed..7861faf5138f 100644
--- a/drivers/staging/vt6656/key.h
+++ b/drivers/staging/vt6656/key.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: key.h
  *
diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c
index 5dfac05b9cf1..eeed16e9124e 100644
--- a/drivers/staging/vt6656/mac.c
+++ b/drivers/staging/vt6656/mac.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: mac.c
  *
diff --git a/drivers/staging/vt6656/mac.h b/drivers/staging/vt6656/mac.h
index d53fcef87b4a..4c6e610f1bc1 100644
--- a/drivers/staging/vt6656/mac.h
+++ b/drivers/staging/vt6656/mac.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: mac.h
  *
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 01e642db311e..ee8d1e1a24c2 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: main_usb.c
  *
diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c
index 13afce27951c..c025dab0f62c 100644
--- a/drivers/staging/vt6656/power.c
+++ b/drivers/staging/vt6656/power.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: power.c
  *
diff --git a/drivers/staging/vt6656/power.h b/drivers/staging/vt6656/power.h
index 7696b714850c..9d1ebb695f9d 100644
--- a/drivers/staging/vt6656/power.h
+++ b/drivers/staging/vt6656/power.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: power.h
  *
diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index c4286ccac320..816206c92f57 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: rf.c
  *
diff --git a/drivers/staging/vt6656/rf.h b/drivers/staging/vt6656/rf.h
index 3acdc65b1e56..c3d4f06d65f4 100644
--- a/drivers/staging/vt6656/rf.h
+++ b/drivers/staging/vt6656/rf.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: rf.h
  *
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index efb54f53b4f9..a0c69b697901 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: rxtx.c
  *
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 90b34ab2f6ce..4a79c404275b 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: rxtx.h
  *
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index c975c3b87093..351a99f3d684 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: usbpipe.c
  *
diff --git a/drivers/staging/vt6656/usbpipe.h b/drivers/staging/vt6656/usbpipe.h
index e74aa0809928..8bafd9aee1fa 100644
--- a/drivers/staging/vt6656/usbpipe.h
+++ b/drivers/staging/vt6656/usbpipe.h
@@ -12,10 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
  *
  * File: usbpipe.h
  *
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 3cbf4791bac1..4846a898d39b 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: wcmd.c
  *
diff --git a/drivers/staging/vt6656/wcmd.h b/drivers/staging/vt6656/wcmd.h
index 2b0ee285eb0b..764c09ccd42d 100644
--- a/drivers/staging/vt6656/wcmd.h
+++ b/drivers/staging/vt6656/wcmd.h
@@ -12,9 +12,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * File: wcmd.h
  *
diff --git a/drivers/staging/wilc1000/Kconfig b/drivers/staging/wilc1000/Kconfig
index ee51b4278088..dce9cee9134a 100644
--- a/drivers/staging/wilc1000/Kconfig
+++ b/drivers/staging/wilc1000/Kconfig
@@ -1,41 +1,12 @@
-config WILC1000_DRIVER
-	bool "WILC1000 support (WiFi only)"
-	depends on CFG80211 && WEXT_CORE && INET
-	---help---
-	  This module only support IEEE 802.11n WiFi.
-
-if WILC1000_DRIVER
-
 config WILC1000
 	tristate
-
-choice
-        prompt "Memory Allocation"
-        default WILC1000_PREALLOCATE_AT_LOADING_DRIVER
-
-config WILC1000_PREALLOCATE_AT_LOADING_DRIVER
-	bool "Preallocate memory at loading driver"
+	select WIRELESS_EXT
 	---help---
-	  This choice supports static allocation of the memory
-	  for the receive buffer. The driver will allocate the RX buffer
-	  during initial time. The driver will also free the buffer
-	  by calling network device stop.
-
-config WILC1000_DYNAMICALLY_ALLOCATE_MEMROY
-        bool "Dynamically allocate memory in real time"
-        ---help---
-	  This choice supports dynamic allocation of the memory
-	  for the receive buffer. The driver will allocate the RX buffer
-	  when it is required.
-endchoice
-
-choice
-	prompt "Bus Type"
-	default WILC1000_SDIO
+	  This module only support IEEE 802.11n WiFi.
 
 config WILC1000_SDIO
-	bool "SDIO support"
-	depends on MMC
+	tristate "Atmel WILC1000 SDIO (WiFi only)"
+	depends on CFG80211 && INET && MMC
 	select WILC1000
 	---help---
 	  This module adds support for the SDIO interface of adapters using
@@ -48,9 +19,9 @@ config WILC1000_SDIO
 	  this if your platform is using the SDIO bus.
 
 config WILC1000_SPI
-	depends on SPI
+	tristate "Atmel WILC1000 SPI (WiFi only)"
+	depends on CFG80211 && INET && SPI
 	select WILC1000
-	bool "SPI support"
 	---help---
 	  This module adds support for the SPI interface of adapters using
 	  WILC1000 chipset. The Atmel WILC1000 has a Serial Peripheral
@@ -59,10 +30,9 @@ config WILC1000_SPI
 	  full-duplex slave synchronous serial interface that is available
 	  immediately following reset when pin 9 (SDIO_SPI_CFG) is tied to
 	  VDDIO. Select this if your platform is using the SPI bus.
-endchoice
 
 config WILC1000_HW_OOB_INTR
-	bool "Use out of band interrupt"
+	bool "WILC1000 out of band interrupt"
 	depends on WILC1000_SDIO
 	default n
 	---help---
@@ -71,5 +41,3 @@ config WILC1000_HW_OOB_INTR
 	  mechanism for SDIO host controllers that don't support SDIO interrupt.
 	  Select this option If the SDIO host controller in your platform
 	  doesn't support SDIO time devision interrupt.
-
-endif
diff --git a/drivers/staging/wilc1000/Makefile b/drivers/staging/wilc1000/Makefile
index 64c2f1b83dfb..20a5cb9d4f4c 100644
--- a/drivers/staging/wilc1000/Makefile
+++ b/drivers/staging/wilc1000/Makefile
@@ -1,28 +1,20 @@
 obj-$(CONFIG_WILC1000) += wilc1000.o
 
-ccflags-$(CONFIG_WILC1000_SDIO) += -DWILC_SDIO -DCOMPLEMENT_BOOT
-ccflags-$(CONFIG_WILC1000_HW_OOB_INTR) += -DWILC_SDIO_IRQ_GPIO
-ccflags-$(CONFIG_WILC1000_SPI) += -DWILC_SPI
-
 ccflags-y += -DSTA_FIRMWARE=\"atmel/wilc1000_fw.bin\" \
 		-DAP_FIRMWARE=\"atmel/wilc1000_ap_fw.bin\" \
 		-DP2P_CONCURRENCY_FIRMWARE=\"atmel/wilc1000_p2p_fw.bin\"
 
-ccflags-y += -I$(src)/ -D__CHECK_ENDIAN__ -DWILC_ASIC_A0 \
-		-Wno-unused-function -DWILC_DEBUGFS
+ccflags-y += -I$(src)/ -DWILC_ASIC_A0 -DWILC_DEBUGFS
 #ccflags-y += -DTCP_ACK_FILTER
 
-ccflags-$(CONFIG_WILC1000_PREALLOCATE_AT_LOADING_DRIVER) += -DMEMORY_STATIC \
-								-DWILC_PREALLOC_AT_INSMOD
-
-ccflags-$(CONFIG_WILC1000_DYNAMICALLY_ALLOCATE_MEMROY) += -DWILC_NORMAL_ALLOC
-
-
 wilc1000-objs := wilc_wfi_cfgoperations.o linux_wlan.o linux_mon.o \
 			wilc_msgqueue.o \
 			coreconfigurator.o host_interface.o \
-			wilc_sdio.o wilc_spi.o wilc_wlan_cfg.o wilc_debugfs.o \
+			wilc_wlan_cfg.o wilc_debugfs.o \
 			wilc_wlan.o
 
-wilc1000-$(CONFIG_WILC1000_SDIO) += linux_wlan_sdio.o
-wilc1000-$(CONFIG_WILC1000_SPI) += linux_wlan_spi.o
+obj-$(CONFIG_WILC1000_SDIO) += wilc1000-sdio.o
+wilc1000-sdio-objs += wilc_sdio.o
+
+obj-$(CONFIG_WILC1000_SPI) += wilc1000-spi.o
+wilc1000-spi-objs += wilc_spi.o
diff --git a/drivers/staging/wilc1000/coreconfigurator.c b/drivers/staging/wilc1000/coreconfigurator.c
index 9568bdb6319b..2d4d3f190c01 100644
--- a/drivers/staging/wilc1000/coreconfigurator.c
+++ b/drivers/staging/wilc1000/coreconfigurator.c
@@ -287,7 +287,7 @@ static inline u16 get_asoc_id(u8 *data)
 	return asoc_id;
 }
 
-u8 *get_tim_elm(u8 *pu8msa, u16 u16RxLen, u16 u16TagParamOffset)
+static u8 *get_tim_elm(u8 *pu8msa, u16 u16RxLen, u16 u16TagParamOffset)
 {
 	u16 u16index;
 
@@ -315,7 +315,7 @@ u8 *get_tim_elm(u8 *pu8msa, u16 u16RxLen, u16 u16TagParamOffset)
 
 /* This function gets the current channel information from
  * the 802.11n beacon/probe response frame */
-u8 get_current_channel_802_11n(u8 *pu8msa, u16 u16RxLen)
+static u8 get_current_channel_802_11n(u8 *pu8msa, u16 u16RxLen)
 {
 	u16 index;
 
@@ -344,7 +344,7 @@ u8 get_current_channel_802_11n(u8 *pu8msa, u16 u16RxLen)
  *  @date			1 Mar 2012
  *  @version		1.0
  */
-s32 parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo)
+s32 wilc_parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo)
 {
 	tstrNetworkInfo *pstrNetworkInfo = NULL;
 	u8 u8MsgType = 0;
@@ -436,7 +436,7 @@ s32 parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo)
 
 		/* Get DTIM Period */
 		pu8TimElm = get_tim_elm(pu8msa, u16RxLen + FCS_LEN, u8index);
-		if (pu8TimElm != NULL)
+		if (pu8TimElm)
 			pstrNetworkInfo->u8DtimPeriod = pu8TimElm[3];
 		pu8IEs = &pu8msa[MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN + CAP_INFO_LEN];
 		u16IEsLen = u16RxLen - (MAC_HDR_LEN + TIME_STAMP_LEN + BEACON_INTERVAL_LEN + CAP_INFO_LEN);
@@ -466,12 +466,12 @@ s32 parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo)
  *  @date		1 Mar 2012
  *  @version		1.0
  */
-s32 DeallocateNetworkInfo(tstrNetworkInfo *pstrNetworkInfo)
+s32 wilc_dealloc_network_info(tstrNetworkInfo *pstrNetworkInfo)
 {
 	s32 s32Error = 0;
 
-	if (pstrNetworkInfo != NULL) {
-		if (pstrNetworkInfo->pu8IEs != NULL) {
+	if (pstrNetworkInfo) {
+		if (pstrNetworkInfo->pu8IEs) {
 			kfree(pstrNetworkInfo->pu8IEs);
 			pstrNetworkInfo->pu8IEs = NULL;
 		} else {
@@ -499,7 +499,7 @@ s32 DeallocateNetworkInfo(tstrNetworkInfo *pstrNetworkInfo)
  *  @date			2 Apr 2012
  *  @version		1.0
  */
-s32 ParseAssocRespInfo(u8 *pu8Buffer, u32 u32BufferLen,
+s32 wilc_parse_assoc_resp_info(u8 *pu8Buffer, u32 u32BufferLen,
 			       tstrConnectRespInfo **ppstrConnectRespInfo)
 {
 	s32 s32Error = 0;
@@ -551,12 +551,12 @@ s32 ParseAssocRespInfo(u8 *pu8Buffer, u32 u32BufferLen,
  *  @date			2 Apr 2012
  *  @version		1.0
  */
-s32 DeallocateAssocRespInfo(tstrConnectRespInfo *pstrConnectRespInfo)
+s32 wilc_dealloc_assoc_resp_info(tstrConnectRespInfo *pstrConnectRespInfo)
 {
 	s32 s32Error = 0;
 
-	if (pstrConnectRespInfo != NULL) {
-		if (pstrConnectRespInfo->pu8RespIEs != NULL) {
+	if (pstrConnectRespInfo) {
+		if (pstrConnectRespInfo->pu8RespIEs) {
 			kfree(pstrConnectRespInfo->pu8RespIEs);
 			pstrConnectRespInfo->pu8RespIEs = NULL;
 		} else {
@@ -588,7 +588,8 @@ s32 DeallocateAssocRespInfo(tstrConnectRespInfo *pstrConnectRespInfo)
  *  @date		1 Mar 2012
  *  @version	1.0
  */
-s32 send_config_pkt(u8 mode, struct wid *wids, u32 count, u32 drv)
+s32 wilc_send_config_pkt(struct wilc *wilc, u8 mode, struct wid *wids,
+			 u32 count, u32 drv)
 {
 	s32 counter = 0, ret = 0;
 
@@ -596,11 +597,11 @@ s32 send_config_pkt(u8 mode, struct wid *wids, u32 count, u32 drv)
 		for (counter = 0; counter < count; counter++) {
 			PRINT_INFO(CORECONFIG_DBG, "Sending CFG packet [%d][%d]\n", !counter,
 				   (counter == count - 1));
-			if (!wilc_wlan_cfg_get(!counter,
+			if (!wilc_wlan_cfg_get(wilc, !counter,
 					       wids[counter].id,
 					       (counter == count - 1),
 					       drv)) {
-				ret = -1;
+				ret = -ETIMEDOUT;
 				printk("[Sendconfigpkt]Get Timed out\n");
 				break;
 			}
@@ -611,18 +612,17 @@ s32 send_config_pkt(u8 mode, struct wid *wids, u32 count, u32 drv)
 					wids[counter].id,
 					wids[counter].val,
 					wids[counter].size);
-
 		}
 	} else if (mode == SET_CFG) {
 		for (counter = 0; counter < count; counter++) {
 			PRINT_D(CORECONFIG_DBG, "Sending config SET PACKET WID:%x\n", wids[counter].id);
-			if (!wilc_wlan_cfg_set(!counter,
+			if (!wilc_wlan_cfg_set(wilc, !counter,
 					       wids[counter].id,
 					       wids[counter].val,
 					       wids[counter].size,
 					       (counter == count - 1),
 					       drv)) {
-				ret = -1;
+				ret = -ETIMEDOUT;
 				printk("[Sendconfigpkt]Set Timed out\n");
 				break;
 			}
diff --git a/drivers/staging/wilc1000/coreconfigurator.h b/drivers/staging/wilc1000/coreconfigurator.h
index 6294d929a800..fc43d04ca1da 100644
--- a/drivers/staging/wilc1000/coreconfigurator.h
+++ b/drivers/staging/wilc1000/coreconfigurator.h
@@ -72,7 +72,7 @@ typedef enum {
 
 struct wid {
 	u16 id;
-	enum WID_TYPE type;
+	enum wid_type type;
 	s32 size;
 	s8 *val;
 };
@@ -127,16 +127,18 @@ typedef struct {
 	size_t ie_len;
 } tstrDisconnectNotifInfo;
 
-s32 send_config_pkt(u8 mode, struct wid *wids, u32 count, u32 drv);
-s32 parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo);
-s32 DeallocateNetworkInfo(tstrNetworkInfo *pstrNetworkInfo);
+s32 wilc_send_config_pkt(struct wilc *wilc, u8 mode, struct wid *wids,
+			 u32 count, u32 drv);
+s32 wilc_parse_network_info(u8 *pu8MsgBuffer, tstrNetworkInfo **ppstrNetworkInfo);
+s32 wilc_dealloc_network_info(tstrNetworkInfo *pstrNetworkInfo);
 
-s32 ParseAssocRespInfo(u8 *pu8Buffer, u32 u32BufferLen,
+s32 wilc_parse_assoc_resp_info(u8 *pu8Buffer, u32 u32BufferLen,
 		       tstrConnectRespInfo **ppstrConnectRespInfo);
-s32 DeallocateAssocRespInfo(tstrConnectRespInfo *pstrConnectRespInfo);
-
-void NetworkInfoReceived(u8 *pu8Buffer, u32 u32Length);
-void GnrlAsyncInfoReceived(u8 *pu8Buffer, u32 u32Length);
-void host_int_ScanCompleteReceived(u8 *pu8Buffer, u32 u32Length);
-
+s32 wilc_dealloc_assoc_resp_info(tstrConnectRespInfo *pstrConnectRespInfo);
+void wilc_scan_complete_received(struct wilc *wilc, u8 *pu8Buffer,
+				 u32 u32Length);
+void wilc_network_info_received(struct wilc *wilc, u8 *pu8Buffer,
+				u32 u32Length);
+void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer,
+				   u32 u32Length);
 #endif
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index dbbe72c7e255..8c7752034032 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -4,17 +4,12 @@
 #include <linux/delay.h>
 #include "host_interface.h"
 #include "coreconfigurator.h"
+#include "wilc_wlan.h"
 #include "wilc_wlan_if.h"
 #include "wilc_msgqueue.h"
 #include <linux/etherdevice.h>
 #include "wilc_wfi_netdevice.h"
 
-extern u8 connecting;
-
-extern struct timer_list hDuringIpTimer;
-
-extern u8 g_wilc_initialized;
-
 #define HOST_IF_MSG_SCAN                        0
 #define HOST_IF_MSG_CONNECT                     1
 #define HOST_IF_MSG_RCVD_GNRL_ASYNC_INFO        2
@@ -48,7 +43,6 @@ extern u8 g_wilc_initialized;
 #define HOST_IF_MSG_FLUSH_CONNECT               30
 #define HOST_IF_MSG_GET_STATISTICS              31
 #define HOST_IF_MSG_SET_MULTICAST_FILTER        32
-#define HOST_IF_MSG_ADD_BA_SESSION              33
 #define HOST_IF_MSG_DEL_BA_SESSION              34
 #define HOST_IF_MSG_Q_IDLE                      35
 #define HOST_IF_MSG_DEL_ALL_STA                 36
@@ -199,7 +193,7 @@ union message_body {
 struct host_if_msg {
 	u16 id;
 	union message_body body;
-	struct host_if_drv *drv;
+	struct wilc_vif *vif;
 };
 
 struct join_bss_param {
@@ -231,10 +225,9 @@ struct join_bss_param {
 	u8 start_time[4];
 };
 
-static struct host_if_drv *wfidrv_list[NUM_CONCURRENT_IFC + 1];
 struct host_if_drv *terminated_handle;
-bool g_obtainingIP;
-u8 P2P_LISTEN_STATE;
+bool wilc_optaining_ip;
+static u8 P2P_LISTEN_STATE;
 static struct task_struct *hif_thread_handler;
 static WILC_MsgQueueHandle hif_msg_q;
 static struct semaphore hif_sema_thread;
@@ -243,7 +236,7 @@ static struct semaphore hif_sema_wait_response;
 static struct semaphore hif_sema_deinit;
 static struct timer_list periodic_rssi;
 
-u8 gau8MulticastMacAddrList[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN];
+u8 wilc_multicast_mac_addr_list[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN];
 
 static u8 rcv_assoc_resp[MAX_ASSOC_RESP_FRAME_SIZE];
 
@@ -259,86 +252,57 @@ static u8 del_beacon;
 static u32 clients_count;
 
 static u8 *join_req;
-u8 *info_element;
+static u8 *info_element;
 static u8 mode_11i;
-u8 auth_type;
-u32 join_req_size;
+static u8 auth_type;
+static u32 join_req_size;
 static u32 info_element_size;
-static struct host_if_drv *join_req_drv;
+static struct wilc_vif *join_req_vif;
 #define REAL_JOIN_REQ 0
 #define FLUSHED_JOIN_REQ 1
 #define FLUSHED_BYTE_POS 79
 
 static void *host_int_ParseJoinBssParam(tstrNetworkInfo *ptstrNetworkInfo);
 
-extern void chip_sleep_manually(u32 u32SleepTime);
-extern int linux_wlan_get_num_conn_ifcs(void);
-
-static int add_handler_in_list(struct host_if_drv *handler)
+/* The u8IfIdx starts from 0 to NUM_CONCURRENT_IFC -1, but 0 index used as
+ * special purpose in wilc device, so we add 1 to the index to starts from 1.
+ * As a result, the returned index will be 1 to NUM_CONCURRENT_IFC.
+ */
+int wilc_get_vif_idx(struct wilc_vif *vif)
 {
-	int i;
-
-	for (i = 1; i < ARRAY_SIZE(wfidrv_list); i++) {
-		if (!wfidrv_list[i]) {
-			wfidrv_list[i] = handler;
-			return 0;
-		}
-	}
-
-	return -ENOBUFS;
+	return vif->u8IfIdx + 1;
 }
 
-static int remove_handler_in_list(struct host_if_drv *handler)
+/* We need to minus 1 from idx which is from wilc device to get real index
+ * of wilc->vif[], because we add 1 when pass to wilc device in the function
+ * wilc_get_vif_idx.
+ * As a result, the index should be between 0 and NUM_CONCURRENT_IFC -1.
+ */
+static struct wilc_vif *wilc_get_vif_from_idx(struct wilc *wilc, int idx)
 {
-	int i;
+	int index = idx - 1;
 
-	for (i = 1; i < ARRAY_SIZE(wfidrv_list); i++) {
-		if (wfidrv_list[i] == handler) {
-			wfidrv_list[i] = NULL;
-			return 0;
-		}
-	}
-
-	return -EINVAL;
-}
-
-static int get_id_from_handler(struct host_if_drv *handler)
-{
-	int i;
-
-	if (!handler)
-		return 0;
-
-	for (i = 1; i < ARRAY_SIZE(wfidrv_list); i++) {
-		if (wfidrv_list[i] == handler)
-			return i;
-	}
-
-	return 0;
-}
-
-static struct host_if_drv *get_handler_from_id(int id)
-{
-	if (id <= 0 || id >= ARRAY_SIZE(wfidrv_list))
+	if (index < 0 || index >= NUM_CONCURRENT_IFC)
 		return NULL;
-	return wfidrv_list[id];
+
+	return wilc->vif[index];
 }
 
-static s32 Handle_SetChannel(struct host_if_drv *hif_drv,
-			     struct channel_attr *pstrHostIFSetChan)
+static s32 handle_set_channel(struct wilc_vif *vif,
+			      struct channel_attr *hif_set_ch)
 {
 	s32 result = 0;
 	struct wid wid;
 
 	wid.id = (u16)WID_CURRENT_CHANNEL;
 	wid.type = WID_CHAR;
-	wid.val = (char *)&pstrHostIFSetChan->set_ch;
+	wid.val = (char *)&hif_set_ch->set_ch;
 	wid.size = sizeof(char);
 
 	PRINT_D(HOSTINF_DBG, "Setting channel\n");
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to set channel\n");
@@ -348,21 +312,21 @@ static s32 Handle_SetChannel(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static s32 Handle_SetWfiDrvHandler(struct host_if_drv *hif_drv,
-				   struct drv_handler *pstrHostIfSetDrvHandler)
+static s32 handle_set_wfi_drv_handler(struct wilc_vif *vif,
+				      struct drv_handler *hif_drv_handler)
 {
 	s32 result = 0;
 	struct wid wid;
 
 	wid.id = (u16)WID_SET_DRV_HANDLER;
 	wid.type = WID_INT;
-	wid.val = (s8 *)&pstrHostIfSetDrvHandler->handler;
+	wid.val = (s8 *)&hif_drv_handler->handler;
 	wid.size = sizeof(u32);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 pstrHostIfSetDrvHandler->handler);
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				      hif_drv_handler->handler);
 
-	if (!hif_drv)
+	if (!hif_drv_handler->handler)
 		up(&hif_sema_driver);
 
 	if (result) {
@@ -373,21 +337,21 @@ static s32 Handle_SetWfiDrvHandler(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static s32 Handle_SetOperationMode(struct host_if_drv *hif_drv,
-				   struct op_mode *pstrHostIfSetOperationMode)
+static s32 handle_set_operation_mode(struct wilc_vif *vif,
+				     struct op_mode *hif_op_mode)
 {
 	s32 result = 0;
 	struct wid wid;
 
 	wid.id = (u16)WID_SET_OPERATION_MODE;
 	wid.type = WID_INT;
-	wid.val = (s8 *)&pstrHostIfSetOperationMode->mode;
+	wid.val = (s8 *)&hif_op_mode->mode;
 	wid.size = sizeof(u32);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
-	if ((pstrHostIfSetOperationMode->mode) == IDLE_MODE)
+	if ((hif_op_mode->mode) == IDLE_MODE)
 		up(&hif_sema_driver);
 
 	if (result) {
@@ -398,28 +362,34 @@ static s32 Handle_SetOperationMode(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 Handle_set_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
+static s32 host_int_get_ipaddress(struct wilc_vif *vif,
+				  struct host_if_drv *hif_drv,
+				  u8 *u16ipadd, u8 idx);
+
+static s32 handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx)
 {
 	s32 result = 0;
 	struct wid wid;
-	char firmwareIPAddress[4] = {0};
+	char firmware_ip_addr[4] = {0};
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
-	if (pu8IPAddr[0] < 192)
-		pu8IPAddr[0] = 0;
+	if (ip_addr[0] < 192)
+		ip_addr[0] = 0;
 
-	PRINT_INFO(HOSTINF_DBG, "Indx = %d, Handling set  IP = %pI4\n", idx, pu8IPAddr);
+	PRINT_INFO(HOSTINF_DBG, "Indx = %d, Handling set  IP = %pI4\n",
+		   idx, ip_addr);
 
-	memcpy(set_ip[idx], pu8IPAddr, IP_ALEN);
+	memcpy(set_ip[idx], ip_addr, IP_ALEN);
 
 	wid.id = (u16)WID_IP_ADDRESS;
 	wid.type = WID_STR;
-	wid.val = (u8 *)pu8IPAddr;
+	wid.val = (u8 *)ip_addr;
 	wid.size = IP_ALEN;
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
-	host_int_get_ipaddress(hif_drv, firmwareIPAddress, idx);
+	host_int_get_ipaddress(vif, hif_drv, firmware_ip_addr, idx);
 
 	if (result) {
 		PRINT_ER("Failed to set IP address\n");
@@ -431,7 +401,7 @@ s32 Handle_set_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
 	return result;
 }
 
-s32 Handle_get_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
+static s32 handle_get_ip_address(struct wilc_vif *vif, u8 idx)
 {
 	s32 result = 0;
 	struct wid wid;
@@ -441,8 +411,8 @@ s32 Handle_get_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
 	wid.val = kmalloc(IP_ALEN, GFP_KERNEL);
 	wid.size = IP_ALEN;
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	PRINT_INFO(HOSTINF_DBG, "%pI4\n", wid.val);
 
@@ -451,7 +421,7 @@ s32 Handle_get_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
 	kfree(wid.val);
 
 	if (memcmp(get_ip[idx], set_ip[idx], IP_ALEN) != 0)
-		host_int_setup_ipaddress(hif_drv, set_ip[idx], idx);
+		wilc_setup_ipaddress(vif, set_ip[idx], idx);
 
 	if (result != 0) {
 		PRINT_ER("Failed to get IP address\n");
@@ -465,8 +435,8 @@ s32 Handle_get_IPAddress(struct host_if_drv *hif_drv, u8 *pu8IPAddr, u8 idx)
 	return result;
 }
 
-static s32 Handle_SetMacAddress(struct host_if_drv *hif_drv,
-				struct set_mac_addr *pstrHostIfSetMacAddress)
+static s32 handle_set_mac_address(struct wilc_vif *vif,
+				  struct set_mac_addr *set_mac_addr)
 {
 	s32 result = 0;
 	struct wid wid;
@@ -476,7 +446,7 @@ static s32 Handle_SetMacAddress(struct host_if_drv *hif_drv,
 		PRINT_ER("No buffer to send mac address\n");
 		return -EFAULT;
 	}
-	memcpy(mac_buf, pstrHostIfSetMacAddress->mac_addr, ETH_ALEN);
+	memcpy(mac_buf, set_mac_addr->mac_addr, ETH_ALEN);
 
 	wid.id = (u16)WID_MAC_ADDR;
 	wid.type = WID_STR;
@@ -484,8 +454,8 @@ static s32 Handle_SetMacAddress(struct host_if_drv *hif_drv,
 	wid.size = ETH_ALEN;
 	PRINT_D(GENERIC_DBG, "mac addr = :%pM\n", wid.val);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result) {
 		PRINT_ER("Failed to set mac address\n");
 		result = -EFAULT;
@@ -495,19 +465,19 @@ static s32 Handle_SetMacAddress(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static s32 Handle_GetMacAddress(struct host_if_drv *hif_drv,
-				struct get_mac_addr *pstrHostIfGetMacAddress)
+static s32 handle_get_mac_address(struct wilc_vif *vif,
+				  struct get_mac_addr *get_mac_addr)
 {
 	s32 result = 0;
 	struct wid wid;
 
 	wid.id = (u16)WID_MAC_ADDR;
 	wid.type = WID_STR;
-	wid.val = pstrHostIfGetMacAddress->mac_addr;
+	wid.val = get_mac_addr->mac_addr;
 	wid.size = ETH_ALEN;
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to get mac address\n");
@@ -518,258 +488,270 @@ static s32 Handle_GetMacAddress(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static s32 Handle_CfgParam(struct host_if_drv *hif_drv,
-			   struct cfg_param_attr *strHostIFCfgParamAttr)
+static s32 handle_cfg_param(struct wilc_vif *vif,
+			    struct cfg_param_attr *cfg_param_attr)
 {
 	s32 result = 0;
-	struct wid strWIDList[32];
-	u8 u8WidCnt = 0;
+	struct wid wid_list[32];
+	struct host_if_drv *hif_drv = vif->hif_drv;
+	u8 wid_cnt = 0;
 
-	down(&hif_drv->gtOsCfgValuesSem);
+	down(&hif_drv->sem_cfg_values);
 
 	PRINT_D(HOSTINF_DBG, "Setting CFG params\n");
 
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & BSS_TYPE) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.bss_type < 6) {
-			strWIDList[u8WidCnt].id = WID_BSS_TYPE;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.bss_type;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.bss_type = (u8)strHostIFCfgParamAttr->cfg_attr_info.bss_type;
+	if (cfg_param_attr->cfg_attr_info.flag & BSS_TYPE) {
+		if (cfg_param_attr->cfg_attr_info.bss_type < 6) {
+			wid_list[wid_cnt].id = WID_BSS_TYPE;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.bss_type;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.bss_type = (u8)cfg_param_attr->cfg_attr_info.bss_type;
 		} else {
 			PRINT_ER("check value 6 over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & AUTH_TYPE) {
-		if ((strHostIFCfgParamAttr->cfg_attr_info.auth_type) == 1 || (strHostIFCfgParamAttr->cfg_attr_info.auth_type) == 2 || (strHostIFCfgParamAttr->cfg_attr_info.auth_type) == 5) {
-			strWIDList[u8WidCnt].id = WID_AUTH_TYPE;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.auth_type;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.auth_type = (u8)strHostIFCfgParamAttr->cfg_attr_info.auth_type;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & AUTH_TYPE) {
+		if (cfg_param_attr->cfg_attr_info.auth_type == 1 ||
+		    cfg_param_attr->cfg_attr_info.auth_type == 2 ||
+		    cfg_param_attr->cfg_attr_info.auth_type == 5) {
+			wid_list[wid_cnt].id = WID_AUTH_TYPE;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.auth_type;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.auth_type = (u8)cfg_param_attr->cfg_attr_info.auth_type;
 		} else {
 			PRINT_ER("Impossible value \n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & AUTHEN_TIMEOUT) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.auth_timeout > 0 && strHostIFCfgParamAttr->cfg_attr_info.auth_timeout < 65536) {
-			strWIDList[u8WidCnt].id = WID_AUTH_TIMEOUT;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.auth_timeout;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.auth_timeout = strHostIFCfgParamAttr->cfg_attr_info.auth_timeout;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & AUTHEN_TIMEOUT) {
+		if (cfg_param_attr->cfg_attr_info.auth_timeout > 0 &&
+		    cfg_param_attr->cfg_attr_info.auth_timeout < 65536) {
+			wid_list[wid_cnt].id = WID_AUTH_TIMEOUT;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.auth_timeout;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.auth_timeout = cfg_param_attr->cfg_attr_info.auth_timeout;
 		} else {
 			PRINT_ER("Range(1 ~ 65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & POWER_MANAGEMENT) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.power_mgmt_mode < 5) {
-			strWIDList[u8WidCnt].id = WID_POWER_MANAGEMENT;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.power_mgmt_mode;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.power_mgmt_mode = (u8)strHostIFCfgParamAttr->cfg_attr_info.power_mgmt_mode;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & POWER_MANAGEMENT) {
+		if (cfg_param_attr->cfg_attr_info.power_mgmt_mode < 5) {
+			wid_list[wid_cnt].id = WID_POWER_MANAGEMENT;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.power_mgmt_mode;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.power_mgmt_mode = (u8)cfg_param_attr->cfg_attr_info.power_mgmt_mode;
 		} else {
 			PRINT_ER("Invalide power mode\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & RETRY_SHORT) {
-		if ((strHostIFCfgParamAttr->cfg_attr_info.short_retry_limit > 0) && (strHostIFCfgParamAttr->cfg_attr_info.short_retry_limit < 256))	{
-			strWIDList[u8WidCnt].id = WID_SHORT_RETRY_LIMIT;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.short_retry_limit;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.short_retry_limit = strHostIFCfgParamAttr->cfg_attr_info.short_retry_limit;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & RETRY_SHORT) {
+		if (cfg_param_attr->cfg_attr_info.short_retry_limit > 0 &&
+		    cfg_param_attr->cfg_attr_info.short_retry_limit < 256) {
+			wid_list[wid_cnt].id = WID_SHORT_RETRY_LIMIT;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.short_retry_limit;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.short_retry_limit = cfg_param_attr->cfg_attr_info.short_retry_limit;
 		} else {
 			PRINT_ER("Range(1~256) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & RETRY_LONG) {
-		if ((strHostIFCfgParamAttr->cfg_attr_info.long_retry_limit > 0) && (strHostIFCfgParamAttr->cfg_attr_info.long_retry_limit < 256)) {
-			strWIDList[u8WidCnt].id = WID_LONG_RETRY_LIMIT;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.long_retry_limit;
-
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.long_retry_limit = strHostIFCfgParamAttr->cfg_attr_info.long_retry_limit;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & RETRY_LONG) {
+		if (cfg_param_attr->cfg_attr_info.long_retry_limit > 0 &&
+		    cfg_param_attr->cfg_attr_info.long_retry_limit < 256) {
+			wid_list[wid_cnt].id = WID_LONG_RETRY_LIMIT;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.long_retry_limit;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.long_retry_limit = cfg_param_attr->cfg_attr_info.long_retry_limit;
 		} else {
 			PRINT_ER("Range(1~256) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & FRAG_THRESHOLD) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.frag_threshold > 255 && strHostIFCfgParamAttr->cfg_attr_info.frag_threshold < 7937) {
-			strWIDList[u8WidCnt].id = WID_FRAG_THRESHOLD;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.frag_threshold;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.frag_threshold = strHostIFCfgParamAttr->cfg_attr_info.frag_threshold;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & FRAG_THRESHOLD) {
+		if (cfg_param_attr->cfg_attr_info.frag_threshold > 255 &&
+		    cfg_param_attr->cfg_attr_info.frag_threshold < 7937) {
+			wid_list[wid_cnt].id = WID_FRAG_THRESHOLD;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.frag_threshold;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.frag_threshold = cfg_param_attr->cfg_attr_info.frag_threshold;
 		} else {
 			PRINT_ER("Threshold Range fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & RTS_THRESHOLD) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.rts_threshold > 255 && strHostIFCfgParamAttr->cfg_attr_info.rts_threshold < 65536)	{
-			strWIDList[u8WidCnt].id = WID_RTS_THRESHOLD;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.rts_threshold;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.rts_threshold = strHostIFCfgParamAttr->cfg_attr_info.rts_threshold;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & RTS_THRESHOLD) {
+		if (cfg_param_attr->cfg_attr_info.rts_threshold > 255 &&
+		    cfg_param_attr->cfg_attr_info.rts_threshold < 65536) {
+			wid_list[wid_cnt].id = WID_RTS_THRESHOLD;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.rts_threshold;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.rts_threshold = cfg_param_attr->cfg_attr_info.rts_threshold;
 		} else {
 			PRINT_ER("Threshold Range fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & PREAMBLE) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.preamble_type < 3) {
-			strWIDList[u8WidCnt].id = WID_PREAMBLE;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.preamble_type;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.preamble_type = strHostIFCfgParamAttr->cfg_attr_info.preamble_type;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & PREAMBLE) {
+		if (cfg_param_attr->cfg_attr_info.preamble_type < 3) {
+			wid_list[wid_cnt].id = WID_PREAMBLE;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.preamble_type;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.preamble_type = cfg_param_attr->cfg_attr_info.preamble_type;
 		} else {
 			PRINT_ER("Preamle Range(0~2) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & SHORT_SLOT_ALLOWED) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.short_slot_allowed < 2) {
-			strWIDList[u8WidCnt].id = WID_SHORT_SLOT_ALLOWED;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.short_slot_allowed;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.short_slot_allowed = (u8)strHostIFCfgParamAttr->cfg_attr_info.short_slot_allowed;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & SHORT_SLOT_ALLOWED) {
+		if (cfg_param_attr->cfg_attr_info.short_slot_allowed < 2) {
+			wid_list[wid_cnt].id = WID_SHORT_SLOT_ALLOWED;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.short_slot_allowed;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.short_slot_allowed = (u8)cfg_param_attr->cfg_attr_info.short_slot_allowed;
 		} else {
 			PRINT_ER("Short slot(2) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & TXOP_PROT_DISABLE) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.txop_prot_disabled < 2) {
-			strWIDList[u8WidCnt].id = WID_11N_TXOP_PROT_DISABLE;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.txop_prot_disabled;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.txop_prot_disabled = (u8)strHostIFCfgParamAttr->cfg_attr_info.txop_prot_disabled;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & TXOP_PROT_DISABLE) {
+		if (cfg_param_attr->cfg_attr_info.txop_prot_disabled < 2) {
+			wid_list[wid_cnt].id = WID_11N_TXOP_PROT_DISABLE;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.txop_prot_disabled;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.txop_prot_disabled = (u8)cfg_param_attr->cfg_attr_info.txop_prot_disabled;
 		} else {
 			PRINT_ER("TXOP prot disable\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & BEACON_INTERVAL) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.beacon_interval > 0 && strHostIFCfgParamAttr->cfg_attr_info.beacon_interval < 65536) {
-			strWIDList[u8WidCnt].id = WID_BEACON_INTERVAL;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.beacon_interval;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.beacon_interval = strHostIFCfgParamAttr->cfg_attr_info.beacon_interval;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & BEACON_INTERVAL) {
+		if (cfg_param_attr->cfg_attr_info.beacon_interval > 0 &&
+		    cfg_param_attr->cfg_attr_info.beacon_interval < 65536) {
+			wid_list[wid_cnt].id = WID_BEACON_INTERVAL;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.beacon_interval;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.beacon_interval = cfg_param_attr->cfg_attr_info.beacon_interval;
 		} else {
 			PRINT_ER("Beacon interval(1~65535) fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & DTIM_PERIOD) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.dtim_period > 0 && strHostIFCfgParamAttr->cfg_attr_info.dtim_period < 256) {
-			strWIDList[u8WidCnt].id = WID_DTIM_PERIOD;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.dtim_period;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.dtim_period = strHostIFCfgParamAttr->cfg_attr_info.dtim_period;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & DTIM_PERIOD) {
+		if (cfg_param_attr->cfg_attr_info.dtim_period > 0 &&
+		    cfg_param_attr->cfg_attr_info.dtim_period < 256) {
+			wid_list[wid_cnt].id = WID_DTIM_PERIOD;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.dtim_period;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.dtim_period = cfg_param_attr->cfg_attr_info.dtim_period;
 		} else {
 			PRINT_ER("DTIM range(1~255) fail\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & SITE_SURVEY) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.site_survey_enabled < 3) {
-			strWIDList[u8WidCnt].id = WID_SITE_SURVEY;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.site_survey_enabled;
-			strWIDList[u8WidCnt].type = WID_CHAR;
-			strWIDList[u8WidCnt].size = sizeof(char);
-			hif_drv->strCfgValues.site_survey_enabled = (u8)strHostIFCfgParamAttr->cfg_attr_info.site_survey_enabled;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & SITE_SURVEY) {
+		if (cfg_param_attr->cfg_attr_info.site_survey_enabled < 3) {
+			wid_list[wid_cnt].id = WID_SITE_SURVEY;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.site_survey_enabled;
+			wid_list[wid_cnt].type = WID_CHAR;
+			wid_list[wid_cnt].size = sizeof(char);
+			hif_drv->cfg_values.site_survey_enabled = (u8)cfg_param_attr->cfg_attr_info.site_survey_enabled;
 		} else {
 			PRINT_ER("Site survey disable\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & SITE_SURVEY_SCAN_TIME) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.site_survey_scan_time > 0 && strHostIFCfgParamAttr->cfg_attr_info.site_survey_scan_time < 65536) {
-			strWIDList[u8WidCnt].id = WID_SITE_SURVEY_SCAN_TIME;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.site_survey_scan_time;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.site_survey_scan_time = strHostIFCfgParamAttr->cfg_attr_info.site_survey_scan_time;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & SITE_SURVEY_SCAN_TIME) {
+		if (cfg_param_attr->cfg_attr_info.site_survey_scan_time > 0 &&
+		    cfg_param_attr->cfg_attr_info.site_survey_scan_time < 65536) {
+			wid_list[wid_cnt].id = WID_SITE_SURVEY_SCAN_TIME;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.site_survey_scan_time;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.site_survey_scan_time = cfg_param_attr->cfg_attr_info.site_survey_scan_time;
 		} else {
 			PRINT_ER("Site survey scan time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & ACTIVE_SCANTIME) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.active_scan_time > 0 && strHostIFCfgParamAttr->cfg_attr_info.active_scan_time < 65536) {
-			strWIDList[u8WidCnt].id = WID_ACTIVE_SCAN_TIME;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.active_scan_time;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.active_scan_time = strHostIFCfgParamAttr->cfg_attr_info.active_scan_time;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & ACTIVE_SCANTIME) {
+		if (cfg_param_attr->cfg_attr_info.active_scan_time > 0 &&
+		    cfg_param_attr->cfg_attr_info.active_scan_time < 65536) {
+			wid_list[wid_cnt].id = WID_ACTIVE_SCAN_TIME;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.active_scan_time;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.active_scan_time = cfg_param_attr->cfg_attr_info.active_scan_time;
 		} else {
 			PRINT_ER("Active scan time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
-	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & PASSIVE_SCANTIME) {
-		if (strHostIFCfgParamAttr->cfg_attr_info.passive_scan_time > 0 && strHostIFCfgParamAttr->cfg_attr_info.passive_scan_time < 65536) {
-			strWIDList[u8WidCnt].id = WID_PASSIVE_SCAN_TIME;
-			strWIDList[u8WidCnt].val = (s8 *)&strHostIFCfgParamAttr->cfg_attr_info.passive_scan_time;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.passive_scan_time = strHostIFCfgParamAttr->cfg_attr_info.passive_scan_time;
+		wid_cnt++;
+	}
+	if (cfg_param_attr->cfg_attr_info.flag & PASSIVE_SCANTIME) {
+		if (cfg_param_attr->cfg_attr_info.passive_scan_time > 0 &&
+		    cfg_param_attr->cfg_attr_info.passive_scan_time < 65536) {
+			wid_list[wid_cnt].id = WID_PASSIVE_SCAN_TIME;
+			wid_list[wid_cnt].val = (s8 *)&cfg_param_attr->cfg_attr_info.passive_scan_time;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.passive_scan_time = cfg_param_attr->cfg_attr_info.passive_scan_time;
 		} else {
 			PRINT_ER("Passive scan time(1~65535) over\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
+		wid_cnt++;
 	}
-	if (strHostIFCfgParamAttr->cfg_attr_info.flag & CURRENT_TX_RATE) {
-		enum CURRENT_TXRATE curr_tx_rate = strHostIFCfgParamAttr->cfg_attr_info.curr_tx_rate;
+	if (cfg_param_attr->cfg_attr_info.flag & CURRENT_TX_RATE) {
+		enum CURRENT_TXRATE curr_tx_rate = cfg_param_attr->cfg_attr_info.curr_tx_rate;
 
 		if (curr_tx_rate == AUTORATE || curr_tx_rate == MBPS_1
 		    || curr_tx_rate == MBPS_2 || curr_tx_rate == MBPS_5_5
@@ -777,38 +759,40 @@ static s32 Handle_CfgParam(struct host_if_drv *hif_drv,
 		    || curr_tx_rate == MBPS_9 || curr_tx_rate == MBPS_12
 		    || curr_tx_rate == MBPS_18 || curr_tx_rate == MBPS_24
 		    || curr_tx_rate == MBPS_36 || curr_tx_rate == MBPS_48 || curr_tx_rate == MBPS_54) {
-			strWIDList[u8WidCnt].id = WID_CURRENT_TX_RATE;
-			strWIDList[u8WidCnt].val = (s8 *)&curr_tx_rate;
-			strWIDList[u8WidCnt].type = WID_SHORT;
-			strWIDList[u8WidCnt].size = sizeof(u16);
-			hif_drv->strCfgValues.curr_tx_rate = (u8)curr_tx_rate;
+			wid_list[wid_cnt].id = WID_CURRENT_TX_RATE;
+			wid_list[wid_cnt].val = (s8 *)&curr_tx_rate;
+			wid_list[wid_cnt].type = WID_SHORT;
+			wid_list[wid_cnt].size = sizeof(u16);
+			hif_drv->cfg_values.curr_tx_rate = (u8)curr_tx_rate;
 		} else {
 			PRINT_ER("out of TX rate\n");
 			result = -EINVAL;
 			goto ERRORHANDLER;
 		}
-		u8WidCnt++;
+		wid_cnt++;
 	}
 
-	result = send_config_pkt(SET_CFG, strWIDList, u8WidCnt,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, wid_list,
+				      wid_cnt, wilc_get_vif_idx(vif));
 
 	if (result)
 		PRINT_ER("Error in setting CFG params\n");
 
 ERRORHANDLER:
-	up(&hif_drv->gtOsCfgValuesSem);
+	up(&hif_drv->sem_cfg_values);
 	return result;
 }
 
-static s32 Handle_wait_msg_q_empty(void)
+static void Handle_wait_msg_q_empty(void)
 {
-	g_wilc_initialized = 0;
+	wilc_initialized = 0;
 	up(&hif_sema_wait_response);
-	return 0;
 }
 
-static s32 Handle_Scan(struct host_if_drv *hif_drv,
+static s32 Handle_ScanDone(struct wilc_vif *vif,
+			   enum scan_event enuEvent);
+
+static s32 Handle_Scan(struct wilc_vif *vif,
 		       struct scan_attr *pstrHostIFscanAttr)
 {
 	s32 result = 0;
@@ -818,21 +802,24 @@ static s32 Handle_Scan(struct host_if_drv *hif_drv,
 	u8 *pu8Buffer;
 	u8 valuesize = 0;
 	u8 *pu8HdnNtwrksWidVal = NULL;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	PRINT_D(HOSTINF_DBG, "Setting SCAN params\n");
-	PRINT_D(HOSTINF_DBG, "Scanning: In [%d] state\n", hif_drv->enuHostIFstate);
+	PRINT_D(HOSTINF_DBG, "Scanning: In [%d] state\n", hif_drv->hif_state);
 
-	hif_drv->usr_scan_req.pfUserScanResult = pstrHostIFscanAttr->result;
-	hif_drv->usr_scan_req.u32UserScanPvoid = pstrHostIFscanAttr->arg;
+	hif_drv->usr_scan_req.scan_result = pstrHostIFscanAttr->result;
+	hif_drv->usr_scan_req.arg = pstrHostIFscanAttr->arg;
 
-	if ((hif_drv->enuHostIFstate >= HOST_IF_SCANNING) && (hif_drv->enuHostIFstate < HOST_IF_CONNECTED)) {
-		PRINT_D(GENERIC_DBG, "Don't scan we are already in [%d] state\n", hif_drv->enuHostIFstate);
+	if ((hif_drv->hif_state >= HOST_IF_SCANNING) &&
+	    (hif_drv->hif_state < HOST_IF_CONNECTED)) {
+		PRINT_D(GENERIC_DBG, "Don't scan already in [%d] state\n",
+			hif_drv->hif_state);
 		PRINT_ER("Already scan\n");
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
 
-	if (g_obtainingIP || connecting) {
+	if (wilc_optaining_ip || wilc_connecting) {
 		PRINT_D(GENERIC_DBG, "[handle_scan]: Don't do obss scan until IP adresss is obtained\n");
 		PRINT_ER("Don't do obss scan\n");
 		result = -EBUSY;
@@ -841,7 +828,7 @@ static s32 Handle_Scan(struct host_if_drv *hif_drv,
 
 	PRINT_D(HOSTINF_DBG, "Setting SCAN params\n");
 
-	hif_drv->usr_scan_req.u32RcvdChCount = 0;
+	hif_drv->usr_scan_req.rcvd_ch_cnt = 0;
 
 	strWIDList[u32WidsCount].id = (u16)WID_SSID_PROBE_REQ;
 	strWIDList[u32WidsCount].type = WID_STR;
@@ -904,13 +891,14 @@ static s32 Handle_Scan(struct host_if_drv *hif_drv,
 	strWIDList[u32WidsCount].val = (s8 *)&pstrHostIFscanAttr->src;
 	u32WidsCount++;
 
-	if (hif_drv->enuHostIFstate == HOST_IF_CONNECTED)
+	if (hif_drv->hif_state == HOST_IF_CONNECTED)
 		scan_while_connected = true;
-	else if (hif_drv->enuHostIFstate == HOST_IF_IDLE)
+	else if (hif_drv->hif_state == HOST_IF_IDLE)
 		scan_while_connected = false;
 
-	result = send_config_pkt(SET_CFG, strWIDList, u32WidsCount,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, strWIDList,
+				      u32WidsCount,
+				      wilc_get_vif_idx(vif));
 
 	if (result)
 		PRINT_ER("Failed to send scan paramters config packet\n");
@@ -919,8 +907,8 @@ static s32 Handle_Scan(struct host_if_drv *hif_drv,
 
 ERRORHANDLER:
 	if (result) {
-		del_timer(&hif_drv->hScanTimer);
-		Handle_ScanDone(hif_drv, SCAN_EVENT_ABORTED);
+		del_timer(&hif_drv->scan_timer);
+		Handle_ScanDone(vif, SCAN_EVENT_ABORTED);
 	}
 
 	kfree(pstrHostIFscanAttr->ch_freq_list);
@@ -936,12 +924,13 @@ ERRORHANDLER:
 	return result;
 }
 
-static s32 Handle_ScanDone(struct host_if_drv *hif_drv,
+static s32 Handle_ScanDone(struct wilc_vif *vif,
 			   enum scan_event enuEvent)
 {
 	s32 result = 0;
 	u8 u8abort_running_scan;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	PRINT_D(HOSTINF_DBG, "in Handle_ScanDone()\n");
 
@@ -953,8 +942,8 @@ static s32 Handle_ScanDone(struct host_if_drv *hif_drv,
 		wid.val = (s8 *)&u8abort_running_scan;
 		wid.size = sizeof(char);
 
-		result = send_config_pkt(SET_CFG, &wid, 1,
-					 get_id_from_handler(hif_drv));
+		result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+					 wilc_get_vif_idx(vif));
 
 		if (result) {
 			PRINT_ER("Failed to set abort running scan\n");
@@ -967,17 +956,17 @@ static s32 Handle_ScanDone(struct host_if_drv *hif_drv,
 		return result;
 	}
 
-	if (hif_drv->usr_scan_req.pfUserScanResult) {
-		hif_drv->usr_scan_req.pfUserScanResult(enuEvent, NULL,
-						       hif_drv->usr_scan_req.u32UserScanPvoid, NULL);
-		hif_drv->usr_scan_req.pfUserScanResult = NULL;
+	if (hif_drv->usr_scan_req.scan_result) {
+		hif_drv->usr_scan_req.scan_result(enuEvent, NULL,
+						  hif_drv->usr_scan_req.arg, NULL);
+		hif_drv->usr_scan_req.scan_result = NULL;
 	}
 
 	return result;
 }
 
-u8 u8ConnectedSSID[6] = {0};
-static s32 Handle_Connect(struct host_if_drv *hif_drv,
+u8 wilc_connected_ssid[6] = {0};
+static s32 Handle_Connect(struct wilc_vif *vif,
 			  struct connect_attr *pstrHostIFconnectAttr)
 {
 	s32 result = 0;
@@ -985,10 +974,11 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 	u32 u32WidsCount = 0, dummyval = 0;
 	u8 *pu8CurrByte = NULL;
 	struct join_bss_param *ptstrJoinBssParam;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	PRINT_D(GENERIC_DBG, "Handling connect request\n");
 
-	if (memcmp(pstrHostIFconnectAttr->bssid, u8ConnectedSSID, ETH_ALEN) == 0) {
+	if (memcmp(pstrHostIFconnectAttr->bssid, wilc_connected_ssid, ETH_ALEN) == 0) {
 		result = 0;
 		PRINT_ER("Trying to connect to an already connected AP, Discard connect request\n");
 		return result;
@@ -1008,7 +998,7 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 		memcpy(hif_drv->usr_conn_req.pu8bssid, pstrHostIFconnectAttr->bssid, 6);
 	}
 
-	hif_drv->usr_conn_req.ssidLen = pstrHostIFconnectAttr->ssid_len;
+	hif_drv->usr_conn_req.ssid_len = pstrHostIFconnectAttr->ssid_len;
 	if (pstrHostIFconnectAttr->ssid) {
 		hif_drv->usr_conn_req.pu8ssid = kmalloc(pstrHostIFconnectAttr->ssid_len + 1, GFP_KERNEL);
 		memcpy(hif_drv->usr_conn_req.pu8ssid,
@@ -1017,18 +1007,18 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 		hif_drv->usr_conn_req.pu8ssid[pstrHostIFconnectAttr->ssid_len] = '\0';
 	}
 
-	hif_drv->usr_conn_req.ConnReqIEsLen = pstrHostIFconnectAttr->ies_len;
+	hif_drv->usr_conn_req.ies_len = pstrHostIFconnectAttr->ies_len;
 	if (pstrHostIFconnectAttr->ies) {
-		hif_drv->usr_conn_req.pu8ConnReqIEs = kmalloc(pstrHostIFconnectAttr->ies_len, GFP_KERNEL);
-		memcpy(hif_drv->usr_conn_req.pu8ConnReqIEs,
+		hif_drv->usr_conn_req.ies = kmalloc(pstrHostIFconnectAttr->ies_len, GFP_KERNEL);
+		memcpy(hif_drv->usr_conn_req.ies,
 		       pstrHostIFconnectAttr->ies,
 		       pstrHostIFconnectAttr->ies_len);
 	}
 
 	hif_drv->usr_conn_req.u8security = pstrHostIFconnectAttr->security;
-	hif_drv->usr_conn_req.tenuAuth_type = pstrHostIFconnectAttr->auth_type;
-	hif_drv->usr_conn_req.pfUserConnectResult = pstrHostIFconnectAttr->result;
-	hif_drv->usr_conn_req.u32UserConnectPvoid = pstrHostIFconnectAttr->arg;
+	hif_drv->usr_conn_req.auth_type = pstrHostIFconnectAttr->auth_type;
+	hif_drv->usr_conn_req.conn_result = pstrHostIFconnectAttr->result;
+	hif_drv->usr_conn_req.arg = pstrHostIFconnectAttr->arg;
 
 	strWIDList[u32WidsCount].id = WID_SUCCESS_FRAME_COUNT;
 	strWIDList[u32WidsCount].type = WID_INT;
@@ -1051,14 +1041,14 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 	{
 		strWIDList[u32WidsCount].id = WID_INFO_ELEMENT_ASSOCIATE;
 		strWIDList[u32WidsCount].type = WID_BIN_DATA;
-		strWIDList[u32WidsCount].val = hif_drv->usr_conn_req.pu8ConnReqIEs;
-		strWIDList[u32WidsCount].size = hif_drv->usr_conn_req.ConnReqIEsLen;
+		strWIDList[u32WidsCount].val = hif_drv->usr_conn_req.ies;
+		strWIDList[u32WidsCount].size = hif_drv->usr_conn_req.ies_len;
 		u32WidsCount++;
 
 		if (memcmp("DIRECT-", pstrHostIFconnectAttr->ssid, 7)) {
-			info_element_size = hif_drv->usr_conn_req.ConnReqIEsLen;
+			info_element_size = hif_drv->usr_conn_req.ies_len;
 			info_element = kmalloc(info_element_size, GFP_KERNEL);
-			memcpy(info_element, hif_drv->usr_conn_req.pu8ConnReqIEs,
+			memcpy(info_element, hif_drv->usr_conn_req.ies,
 			       info_element_size);
 		}
 	}
@@ -1076,13 +1066,14 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 	strWIDList[u32WidsCount].id = (u16)WID_AUTH_TYPE;
 	strWIDList[u32WidsCount].type = WID_CHAR;
 	strWIDList[u32WidsCount].size = sizeof(char);
-	strWIDList[u32WidsCount].val = (s8 *)(&hif_drv->usr_conn_req.tenuAuth_type);
+	strWIDList[u32WidsCount].val = (s8 *)&hif_drv->usr_conn_req.auth_type;
 	u32WidsCount++;
 
 	if (memcmp("DIRECT-", pstrHostIFconnectAttr->ssid, 7))
-		auth_type = (u8)hif_drv->usr_conn_req.tenuAuth_type;
+		auth_type = (u8)hif_drv->usr_conn_req.auth_type;
 
-	PRINT_INFO(HOSTINF_DBG, "Authentication Type = %x\n", hif_drv->usr_conn_req.tenuAuth_type);
+	PRINT_INFO(HOSTINF_DBG, "Authentication Type = %x\n",
+		   hif_drv->usr_conn_req.auth_type);
 	PRINT_D(HOSTINF_DBG, "Connecting to network of SSID %s on channel %d\n",
 		hif_drv->usr_conn_req.pu8ssid, pstrHostIFconnectAttr->ch);
 
@@ -1141,7 +1132,7 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 	*(pu8CurrByte++)  = ptstrJoinBssParam->uapsd_cap;
 
 	*(pu8CurrByte++)  = ptstrJoinBssParam->ht_capable;
-	hif_drv->usr_conn_req.IsHTCapable = ptstrJoinBssParam->ht_capable;
+	hif_drv->usr_conn_req.ht_capable = ptstrJoinBssParam->ht_capable;
 
 	*(pu8CurrByte++)  =  ptstrJoinBssParam->rsn_found;
 	PRINT_D(HOSTINF_DBG, "* rsn found %d*\n", *(pu8CurrByte - 1));
@@ -1194,36 +1185,38 @@ static s32 Handle_Connect(struct host_if_drv *hif_drv,
 
 	if (memcmp("DIRECT-", pstrHostIFconnectAttr->ssid, 7)) {
 		memcpy(join_req, pu8CurrByte, join_req_size);
-		join_req_drv = hif_drv;
+		join_req_vif = vif;
 	}
 
 	PRINT_D(GENERIC_DBG, "send HOST_IF_WAITING_CONN_RESP\n");
 
 	if (pstrHostIFconnectAttr->bssid) {
-		memcpy(u8ConnectedSSID, pstrHostIFconnectAttr->bssid, ETH_ALEN);
-
-		PRINT_D(GENERIC_DBG, "save Bssid = %pM\n", pstrHostIFconnectAttr->bssid);
-		PRINT_D(GENERIC_DBG, "save bssid = %pM\n", u8ConnectedSSID);
+		memcpy(wilc_connected_ssid,
+		       pstrHostIFconnectAttr->bssid, ETH_ALEN);
+		PRINT_D(GENERIC_DBG, "save Bssid = %pM\n",
+			pstrHostIFconnectAttr->bssid);
+		PRINT_D(GENERIC_DBG, "save bssid = %pM\n", wilc_connected_ssid);
 	}
 
-	result = send_config_pkt(SET_CFG, strWIDList, u32WidsCount,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, strWIDList,
+				      u32WidsCount,
+				      wilc_get_vif_idx(vif));
 	if (result) {
 		PRINT_ER("failed to send config packet\n");
 		result = -EFAULT;
 		goto ERRORHANDLER;
 	} else {
 		PRINT_D(GENERIC_DBG, "set HOST_IF_WAITING_CONN_RESP\n");
-		hif_drv->enuHostIFstate = HOST_IF_WAITING_CONN_RESP;
+		hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP;
 	}
 
 ERRORHANDLER:
 	if (result) {
 		tstrConnectInfo strConnectInfo;
 
-		del_timer(&hif_drv->hConnectTimer);
+		del_timer(&hif_drv->connect_timer);
 
-		PRINT_D(HOSTINF_DBG, "could not start connecting to the required network\n");
+		PRINT_D(HOSTINF_DBG, "could not start wilc_connecting to the required network\n");
 
 		memset(&strConnectInfo, 0, sizeof(tstrConnectInfo));
 
@@ -1244,7 +1237,7 @@ ERRORHANDLER:
 							       MAC_DISCONNECTED,
 							       NULL,
 							       pstrHostIFconnectAttr->arg);
-			hif_drv->enuHostIFstate = HOST_IF_IDLE;
+			hif_drv->hif_state = HOST_IF_IDLE;
 			kfree(strConnectInfo.pu8ReqIEs);
 			strConnectInfo.pu8ReqIEs = NULL;
 
@@ -1267,7 +1260,7 @@ ERRORHANDLER:
 	return result;
 }
 
-static s32 Handle_FlushConnect(struct host_if_drv *hif_drv)
+static s32 Handle_FlushConnect(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid strWIDList[5];
@@ -1303,8 +1296,9 @@ static s32 Handle_FlushConnect(struct host_if_drv *hif_drv)
 
 	u32WidsCount++;
 
-	result = send_config_pkt(SET_CFG, strWIDList, u32WidsCount,
-				 get_id_from_handler(join_req_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, strWIDList,
+				      u32WidsCount,
+				      wilc_get_vif_idx(join_req_vif));
 	if (result) {
 		PRINT_ER("failed to send config packet\n");
 		result = -EINVAL;
@@ -1313,43 +1307,44 @@ static s32 Handle_FlushConnect(struct host_if_drv *hif_drv)
 	return result;
 }
 
-static s32 Handle_ConnectTimeout(struct host_if_drv *hif_drv)
+static s32 Handle_ConnectTimeout(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	tstrConnectInfo strConnectInfo;
 	struct wid wid;
 	u16 u16DummyReasonCode = 0;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("Driver handler is NULL\n");
 		return result;
 	}
 
-	hif_drv->enuHostIFstate = HOST_IF_IDLE;
+	hif_drv->hif_state = HOST_IF_IDLE;
 
 	scan_while_connected = false;
 
 	memset(&strConnectInfo, 0, sizeof(tstrConnectInfo));
 
-	if (hif_drv->usr_conn_req.pfUserConnectResult) {
+	if (hif_drv->usr_conn_req.conn_result) {
 		if (hif_drv->usr_conn_req.pu8bssid) {
 			memcpy(strConnectInfo.au8bssid,
 			       hif_drv->usr_conn_req.pu8bssid, 6);
 		}
 
-		if (hif_drv->usr_conn_req.pu8ConnReqIEs) {
-			strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ConnReqIEsLen;
-			strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ConnReqIEsLen, GFP_KERNEL);
+		if (hif_drv->usr_conn_req.ies) {
+			strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ies_len;
+			strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
 			memcpy(strConnectInfo.pu8ReqIEs,
-			       hif_drv->usr_conn_req.pu8ConnReqIEs,
-			       hif_drv->usr_conn_req.ConnReqIEsLen);
+			       hif_drv->usr_conn_req.ies,
+			       hif_drv->usr_conn_req.ies_len);
 		}
 
-		hif_drv->usr_conn_req.pfUserConnectResult(CONN_DISCONN_EVENT_CONN_RESP,
-							  &strConnectInfo,
-							  MAC_DISCONNECTED,
-							  NULL,
-							  hif_drv->usr_conn_req.u32UserConnectPvoid);
+		hif_drv->usr_conn_req.conn_result(CONN_DISCONN_EVENT_CONN_RESP,
+						  &strConnectInfo,
+						  MAC_DISCONNECTED,
+						  NULL,
+						  hif_drv->usr_conn_req.arg);
 
 		kfree(strConnectInfo.pu8ReqIEs);
 		strConnectInfo.pu8ReqIEs = NULL;
@@ -1364,25 +1359,28 @@ static s32 Handle_ConnectTimeout(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Sending disconnect request\n");
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send dissconect config packet\n");
 
-	hif_drv->usr_conn_req.ssidLen = 0;
+	hif_drv->usr_conn_req.ssid_len = 0;
 	kfree(hif_drv->usr_conn_req.pu8ssid);
+	hif_drv->usr_conn_req.pu8ssid = NULL;
 	kfree(hif_drv->usr_conn_req.pu8bssid);
-	hif_drv->usr_conn_req.ConnReqIEsLen = 0;
-	kfree(hif_drv->usr_conn_req.pu8ConnReqIEs);
+	hif_drv->usr_conn_req.pu8bssid = NULL;
+	hif_drv->usr_conn_req.ies_len = 0;
+	kfree(hif_drv->usr_conn_req.ies);
+	hif_drv->usr_conn_req.ies = NULL;
 
-	eth_zero_addr(u8ConnectedSSID);
+	eth_zero_addr(wilc_connected_ssid);
 
-	if (join_req && join_req_drv == hif_drv) {
+	if (join_req && join_req_vif == vif) {
 		kfree(join_req);
 		join_req = NULL;
 	}
 
-	if (info_element && join_req_drv == hif_drv) {
+	if (info_element && join_req_vif == vif) {
 		kfree(info_element);
 		info_element = NULL;
 	}
@@ -1390,7 +1388,7 @@ static s32 Handle_ConnectTimeout(struct host_if_drv *hif_drv)
 	return result;
 }
 
-static s32 Handle_RcvdNtwrkInfo(struct host_if_drv *hif_drv,
+static s32 Handle_RcvdNtwrkInfo(struct wilc_vif *vif,
 				struct rcvd_net_info *pstrRcvdNetworkInfo)
 {
 	u32 i;
@@ -1398,30 +1396,31 @@ static s32 Handle_RcvdNtwrkInfo(struct host_if_drv *hif_drv,
 	s32 result = 0;
 	tstrNetworkInfo *pstrNetworkInfo = NULL;
 	void *pJoinParams = NULL;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	bNewNtwrkFound = true;
 	PRINT_INFO(HOSTINF_DBG, "Handling received network info\n");
 
-	if (hif_drv->usr_scan_req.pfUserScanResult) {
+	if (hif_drv->usr_scan_req.scan_result) {
 		PRINT_D(HOSTINF_DBG, "State: Scanning, parsing network information received\n");
-		parse_network_info(pstrRcvdNetworkInfo->buffer, &pstrNetworkInfo);
+		wilc_parse_network_info(pstrRcvdNetworkInfo->buffer, &pstrNetworkInfo);
 		if ((!pstrNetworkInfo) ||
-		    (!hif_drv->usr_scan_req.pfUserScanResult)) {
+		    (!hif_drv->usr_scan_req.scan_result)) {
 			PRINT_ER("driver is null\n");
 			result = -EINVAL;
 			goto done;
 		}
 
-		for (i = 0; i < hif_drv->usr_scan_req.u32RcvdChCount; i++) {
-			if ((hif_drv->usr_scan_req.astrFoundNetworkInfo[i].au8bssid) &&
+		for (i = 0; i < hif_drv->usr_scan_req.rcvd_ch_cnt; i++) {
+			if ((hif_drv->usr_scan_req.net_info[i].au8bssid) &&
 			    (pstrNetworkInfo->au8bssid)) {
-				if (memcmp(hif_drv->usr_scan_req.astrFoundNetworkInfo[i].au8bssid,
+				if (memcmp(hif_drv->usr_scan_req.net_info[i].au8bssid,
 					   pstrNetworkInfo->au8bssid, 6) == 0) {
-					if (pstrNetworkInfo->s8rssi <= hif_drv->usr_scan_req.astrFoundNetworkInfo[i].s8rssi) {
+					if (pstrNetworkInfo->s8rssi <= hif_drv->usr_scan_req.net_info[i].s8rssi) {
 						PRINT_D(HOSTINF_DBG, "Network previously discovered\n");
 						goto done;
 					} else {
-						hif_drv->usr_scan_req.astrFoundNetworkInfo[i].s8rssi = pstrNetworkInfo->s8rssi;
+						hif_drv->usr_scan_req.net_info[i].s8rssi = pstrNetworkInfo->s8rssi;
 						bNewNtwrkFound = false;
 						break;
 					}
@@ -1432,30 +1431,30 @@ static s32 Handle_RcvdNtwrkInfo(struct host_if_drv *hif_drv,
 		if (bNewNtwrkFound) {
 			PRINT_D(HOSTINF_DBG, "New network found\n");
 
-			if (hif_drv->usr_scan_req.u32RcvdChCount < MAX_NUM_SCANNED_NETWORKS) {
-				hif_drv->usr_scan_req.astrFoundNetworkInfo[hif_drv->usr_scan_req.u32RcvdChCount].s8rssi = pstrNetworkInfo->s8rssi;
+			if (hif_drv->usr_scan_req.rcvd_ch_cnt < MAX_NUM_SCANNED_NETWORKS) {
+				hif_drv->usr_scan_req.net_info[hif_drv->usr_scan_req.rcvd_ch_cnt].s8rssi = pstrNetworkInfo->s8rssi;
 
-				if (hif_drv->usr_scan_req.astrFoundNetworkInfo[hif_drv->usr_scan_req.u32RcvdChCount].au8bssid &&
+				if (hif_drv->usr_scan_req.net_info[hif_drv->usr_scan_req.rcvd_ch_cnt].au8bssid &&
 				    pstrNetworkInfo->au8bssid) {
-					memcpy(hif_drv->usr_scan_req.astrFoundNetworkInfo[hif_drv->usr_scan_req.u32RcvdChCount].au8bssid,
+					memcpy(hif_drv->usr_scan_req.net_info[hif_drv->usr_scan_req.rcvd_ch_cnt].au8bssid,
 					       pstrNetworkInfo->au8bssid, 6);
 
-					hif_drv->usr_scan_req.u32RcvdChCount++;
+					hif_drv->usr_scan_req.rcvd_ch_cnt++;
 
 					pstrNetworkInfo->bNewNetwork = true;
 					pJoinParams = host_int_ParseJoinBssParam(pstrNetworkInfo);
 
-					hif_drv->usr_scan_req.pfUserScanResult(SCAN_EVENT_NETWORK_FOUND, pstrNetworkInfo,
-									       hif_drv->usr_scan_req.u32UserScanPvoid,
-									       pJoinParams);
+					hif_drv->usr_scan_req.scan_result(SCAN_EVENT_NETWORK_FOUND, pstrNetworkInfo,
+									  hif_drv->usr_scan_req.arg,
+									  pJoinParams);
 				}
 			} else {
 				PRINT_WRN(HOSTINF_DBG, "Discovered networks exceeded max. limit\n");
 			}
 		} else {
 			pstrNetworkInfo->bNewNetwork = false;
-			hif_drv->usr_scan_req.pfUserScanResult(SCAN_EVENT_NETWORK_FOUND, pstrNetworkInfo,
-							       hif_drv->usr_scan_req.u32UserScanPvoid, NULL);
+			hif_drv->usr_scan_req.scan_result(SCAN_EVENT_NETWORK_FOUND, pstrNetworkInfo,
+							  hif_drv->usr_scan_req.arg, NULL);
 		}
 	}
 
@@ -1464,14 +1463,19 @@ done:
 	pstrRcvdNetworkInfo->buffer = NULL;
 
 	if (pstrNetworkInfo) {
-		DeallocateNetworkInfo(pstrNetworkInfo);
+		wilc_dealloc_network_info(pstrNetworkInfo);
 		pstrNetworkInfo = NULL;
 	}
 
 	return result;
 }
 
-static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
+static s32 host_int_get_assoc_res_info(struct wilc_vif *vif,
+				       u8 *pu8AssocRespInfo,
+				       u32 u32MaxAssocRespInfoLen,
+				       u32 *pu32RcvdAssocRespInfoLen);
+
+static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif,
 				    struct rcvd_async_info *pstrRcvdGnrlAsyncInfo)
 {
 	s32 result = 0;
@@ -1486,19 +1490,20 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 	tstrConnectInfo strConnectInfo;
 	tstrDisconnectNotifInfo strDisconnectNotifInfo;
 	s32 s32Err = 0;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("Driver handler is NULL\n");
 		return -ENODEV;
 	}
-	PRINT_D(GENERIC_DBG, "Current State = %d,Received state = %d\n", hif_drv->enuHostIFstate,
-		pstrRcvdGnrlAsyncInfo->buffer[7]);
+	PRINT_D(GENERIC_DBG, "Current State = %d,Received state = %d\n",
+		hif_drv->hif_state, pstrRcvdGnrlAsyncInfo->buffer[7]);
 
-	if ((hif_drv->enuHostIFstate == HOST_IF_WAITING_CONN_RESP) ||
-	    (hif_drv->enuHostIFstate == HOST_IF_CONNECTED) ||
-	    hif_drv->usr_scan_req.pfUserScanResult) {
+	if ((hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) ||
+	    (hif_drv->hif_state == HOST_IF_CONNECTED) ||
+	    hif_drv->usr_scan_req.scan_result) {
 		if (!pstrRcvdGnrlAsyncInfo->buffer ||
-		    !hif_drv->usr_conn_req.pfUserConnectResult) {
+		    !hif_drv->usr_conn_req.conn_result) {
 			PRINT_ER("driver is null\n");
 			return -EINVAL;
 		}
@@ -1518,8 +1523,8 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 		u8MacStatusReasonCode = pstrRcvdGnrlAsyncInfo->buffer[8];
 		u8MacStatusAdditionalInfo = pstrRcvdGnrlAsyncInfo->buffer[9];
 		PRINT_INFO(HOSTINF_DBG, "Recieved MAC status = %d with Reason = %d , Info = %d\n", u8MacStatus, u8MacStatusReasonCode, u8MacStatusAdditionalInfo);
-		if (hif_drv->enuHostIFstate == HOST_IF_WAITING_CONN_RESP) {
-			u32 u32RcvdAssocRespInfoLen;
+		if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
+			u32 u32RcvdAssocRespInfoLen = 0;
 			tstrConnectRespInfo *pstrConnectRespInfo = NULL;
 
 			PRINT_D(HOSTINF_DBG, "Recieved MAC status = %d with Reason = %d , Code = %d\n", u8MacStatus, u8MacStatusReasonCode, u8MacStatusAdditionalInfo);
@@ -1529,7 +1534,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 			if (u8MacStatus == MAC_CONNECTED) {
 				memset(rcv_assoc_resp, 0, MAX_ASSOC_RESP_FRAME_SIZE);
 
-				host_int_get_assoc_res_info(hif_drv,
+				host_int_get_assoc_res_info(vif,
 							    rcv_assoc_resp,
 							    MAX_ASSOC_RESP_FRAME_SIZE,
 							    &u32RcvdAssocRespInfoLen);
@@ -1538,10 +1543,10 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 
 				if (u32RcvdAssocRespInfoLen != 0) {
 					PRINT_D(HOSTINF_DBG, "Parsing association response\n");
-					s32Err = ParseAssocRespInfo(rcv_assoc_resp, u32RcvdAssocRespInfoLen,
+					s32Err = wilc_parse_assoc_resp_info(rcv_assoc_resp, u32RcvdAssocRespInfoLen,
 								    &pstrConnectRespInfo);
 					if (s32Err) {
-						PRINT_ER("ParseAssocRespInfo() returned error %d\n", s32Err);
+						PRINT_ER("wilc_parse_assoc_resp_info() returned error %d\n", s32Err);
 					} else {
 						strConnectInfo.u16ConnectStatus = pstrConnectRespInfo->u16ConnectStatus;
 
@@ -1556,7 +1561,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 						}
 
 						if (pstrConnectRespInfo) {
-							DeallocateAssocRespInfo(pstrConnectRespInfo);
+							wilc_dealloc_assoc_resp_info(pstrConnectRespInfo);
 							pstrConnectRespInfo = NULL;
 						}
 					}
@@ -1566,11 +1571,10 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 			if ((u8MacStatus == MAC_CONNECTED) &&
 			    (strConnectInfo.u16ConnectStatus != SUCCESSFUL_STATUSCODE))	{
 				PRINT_ER("Received MAC status is MAC_CONNECTED while the received status code in Asoc Resp is not SUCCESSFUL_STATUSCODE\n");
-				eth_zero_addr(u8ConnectedSSID);
-
+				eth_zero_addr(wilc_connected_ssid);
 			} else if (u8MacStatus == MAC_DISCONNECTED)    {
 				PRINT_ER("Received MAC status is MAC_DISCONNECTED\n");
-				eth_zero_addr(u8ConnectedSSID);
+				eth_zero_addr(wilc_connected_ssid);
 			}
 
 			if (hif_drv->usr_conn_req.pu8bssid) {
@@ -1579,40 +1583,40 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 
 				if ((u8MacStatus == MAC_CONNECTED) &&
 				    (strConnectInfo.u16ConnectStatus == SUCCESSFUL_STATUSCODE))	{
-					memcpy(hif_drv->au8AssociatedBSSID,
+					memcpy(hif_drv->assoc_bssid,
 					       hif_drv->usr_conn_req.pu8bssid, ETH_ALEN);
 				}
 			}
 
-			if (hif_drv->usr_conn_req.pu8ConnReqIEs) {
-				strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ConnReqIEsLen;
-				strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ConnReqIEsLen, GFP_KERNEL);
+			if (hif_drv->usr_conn_req.ies) {
+				strConnectInfo.ReqIEsLen = hif_drv->usr_conn_req.ies_len;
+				strConnectInfo.pu8ReqIEs = kmalloc(hif_drv->usr_conn_req.ies_len, GFP_KERNEL);
 				memcpy(strConnectInfo.pu8ReqIEs,
-				       hif_drv->usr_conn_req.pu8ConnReqIEs,
-				       hif_drv->usr_conn_req.ConnReqIEsLen);
+				       hif_drv->usr_conn_req.ies,
+				       hif_drv->usr_conn_req.ies_len);
 			}
 
-			del_timer(&hif_drv->hConnectTimer);
-			hif_drv->usr_conn_req.pfUserConnectResult(CONN_DISCONN_EVENT_CONN_RESP,
-								  &strConnectInfo,
-								  u8MacStatus,
-								  NULL,
-								  hif_drv->usr_conn_req.u32UserConnectPvoid);
+			del_timer(&hif_drv->connect_timer);
+			hif_drv->usr_conn_req.conn_result(CONN_DISCONN_EVENT_CONN_RESP,
+							  &strConnectInfo,
+							  u8MacStatus,
+							  NULL,
+							  hif_drv->usr_conn_req.arg);
 
 			if ((u8MacStatus == MAC_CONNECTED) &&
 			    (strConnectInfo.u16ConnectStatus == SUCCESSFUL_STATUSCODE))	{
-				host_int_set_power_mgmt(hif_drv, 0, 0);
+				wilc_set_power_mgmt(vif, 0, 0);
 
 				PRINT_D(HOSTINF_DBG, "MAC status : CONNECTED and Connect Status : Successful\n");
-				hif_drv->enuHostIFstate = HOST_IF_CONNECTED;
+				hif_drv->hif_state = HOST_IF_CONNECTED;
 
 				PRINT_D(GENERIC_DBG, "Obtaining an IP, Disable Scan\n");
-				g_obtainingIP = true;
-				mod_timer(&hDuringIpTimer,
+				wilc_optaining_ip = true;
+				mod_timer(&wilc_during_ip_timer,
 					  jiffies + msecs_to_jiffies(10000));
 			} else {
 				PRINT_D(HOSTINF_DBG, "MAC status : %d and Connect Status : %d\n", u8MacStatus, strConnectInfo.u16ConnectStatus);
-				hif_drv->enuHostIFstate = HOST_IF_IDLE;
+				hif_drv->hif_state = HOST_IF_IDLE;
 				scan_while_connected = false;
 			}
 
@@ -1621,69 +1625,75 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 
 			kfree(strConnectInfo.pu8ReqIEs);
 			strConnectInfo.pu8ReqIEs = NULL;
-			hif_drv->usr_conn_req.ssidLen = 0;
+			hif_drv->usr_conn_req.ssid_len = 0;
 			kfree(hif_drv->usr_conn_req.pu8ssid);
+			hif_drv->usr_conn_req.pu8ssid = NULL;
 			kfree(hif_drv->usr_conn_req.pu8bssid);
-			hif_drv->usr_conn_req.ConnReqIEsLen = 0;
-			kfree(hif_drv->usr_conn_req.pu8ConnReqIEs);
+			hif_drv->usr_conn_req.pu8bssid = NULL;
+			hif_drv->usr_conn_req.ies_len = 0;
+			kfree(hif_drv->usr_conn_req.ies);
+			hif_drv->usr_conn_req.ies = NULL;
 		} else if ((u8MacStatus == MAC_DISCONNECTED) &&
-			   (hif_drv->enuHostIFstate == HOST_IF_CONNECTED)) {
+			   (hif_drv->hif_state == HOST_IF_CONNECTED)) {
 			PRINT_D(HOSTINF_DBG, "Received MAC_DISCONNECTED from the FW\n");
 
 			memset(&strDisconnectNotifInfo, 0, sizeof(tstrDisconnectNotifInfo));
 
-			if (hif_drv->usr_scan_req.pfUserScanResult) {
+			if (hif_drv->usr_scan_req.scan_result) {
 				PRINT_D(HOSTINF_DBG, "\n\n<< Abort the running OBSS Scan >>\n\n");
-				del_timer(&hif_drv->hScanTimer);
-				Handle_ScanDone((void *)hif_drv, SCAN_EVENT_ABORTED);
+				del_timer(&hif_drv->scan_timer);
+				Handle_ScanDone(vif, SCAN_EVENT_ABORTED);
 			}
 
 			strDisconnectNotifInfo.u16reason = 0;
 			strDisconnectNotifInfo.ie = NULL;
 			strDisconnectNotifInfo.ie_len = 0;
 
-			if (hif_drv->usr_conn_req.pfUserConnectResult) {
-				g_obtainingIP = false;
-				host_int_set_power_mgmt(hif_drv, 0, 0);
+			if (hif_drv->usr_conn_req.conn_result) {
+				wilc_optaining_ip = false;
+				wilc_set_power_mgmt(vif, 0, 0);
 
-				hif_drv->usr_conn_req.pfUserConnectResult(CONN_DISCONN_EVENT_DISCONN_NOTIF,
-									  NULL,
-									  0,
-									  &strDisconnectNotifInfo,
-									  hif_drv->usr_conn_req.u32UserConnectPvoid);
+				hif_drv->usr_conn_req.conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF,
+								  NULL,
+								  0,
+								  &strDisconnectNotifInfo,
+								  hif_drv->usr_conn_req.arg);
 			} else {
 				PRINT_ER("Connect result callback function is NULL\n");
 			}
 
-			eth_zero_addr(hif_drv->au8AssociatedBSSID);
+			eth_zero_addr(hif_drv->assoc_bssid);
 
-			hif_drv->usr_conn_req.ssidLen = 0;
+			hif_drv->usr_conn_req.ssid_len = 0;
 			kfree(hif_drv->usr_conn_req.pu8ssid);
+			hif_drv->usr_conn_req.pu8ssid = NULL;
 			kfree(hif_drv->usr_conn_req.pu8bssid);
-			hif_drv->usr_conn_req.ConnReqIEsLen = 0;
-			kfree(hif_drv->usr_conn_req.pu8ConnReqIEs);
+			hif_drv->usr_conn_req.pu8bssid = NULL;
+			hif_drv->usr_conn_req.ies_len = 0;
+			kfree(hif_drv->usr_conn_req.ies);
+			hif_drv->usr_conn_req.ies = NULL;
 
-			if (join_req && join_req_drv == hif_drv) {
+			if (join_req && join_req_vif == vif) {
 				kfree(join_req);
 				join_req = NULL;
 			}
 
-			if (info_element && join_req_drv == hif_drv) {
+			if (info_element && join_req_vif == vif) {
 				kfree(info_element);
 				info_element = NULL;
 			}
 
-			hif_drv->enuHostIFstate = HOST_IF_IDLE;
+			hif_drv->hif_state = HOST_IF_IDLE;
 			scan_while_connected = false;
 
 		} else if ((u8MacStatus == MAC_DISCONNECTED) &&
-			   (hif_drv->usr_scan_req.pfUserScanResult)) {
+			   (hif_drv->usr_scan_req.scan_result)) {
 			PRINT_D(HOSTINF_DBG, "Received MAC_DISCONNECTED from the FW while scanning\n");
 			PRINT_D(HOSTINF_DBG, "\n\n<< Abort the running Scan >>\n\n");
 
-			del_timer(&hif_drv->hScanTimer);
-			if (hif_drv->usr_scan_req.pfUserScanResult)
-				Handle_ScanDone(hif_drv, SCAN_EVENT_ABORTED);
+			del_timer(&hif_drv->scan_timer);
+			if (hif_drv->usr_scan_req.scan_result)
+				Handle_ScanDone(vif, SCAN_EVENT_ABORTED);
 		}
 	}
 
@@ -1693,7 +1703,7 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static int Handle_Key(struct host_if_drv *hif_drv,
+static int Handle_Key(struct wilc_vif *vif,
 		      struct key_attr *pstrHostIFkeyAttr)
 {
 	s32 result = 0;
@@ -1703,6 +1713,7 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 	u8 *pu8keybuf;
 	s8 s8idxarray[1];
 	s8 ret = 0;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	switch (pstrHostIFkeyAttr->type) {
 	case WEP:
@@ -1742,12 +1753,11 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 			strWIDList[3].size = pstrHostIFkeyAttr->attr.wep.key_len;
 			strWIDList[3].val = (s8 *)pu8keybuf;
 
-			result = send_config_pkt(SET_CFG, strWIDList, 4,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						strWIDList, 4,
+						wilc_get_vif_idx(vif));
 			kfree(pu8keybuf);
-		}
-
-		if (pstrHostIFkeyAttr->action & ADDKEY) {
+		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			PRINT_D(HOSTINF_DBG, "Handling WEP key\n");
 			pu8keybuf = kmalloc(pstrHostIFkeyAttr->attr.wep.key_len + 2, GFP_KERNEL);
 			if (!pu8keybuf) {
@@ -1765,8 +1775,9 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 			wid.val = (s8 *)pu8keybuf;
 			wid.size = pstrHostIFkeyAttr->attr.wep.key_len + 2;
 
-			result = send_config_pkt(SET_CFG, &wid, 1,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						&wid, 1,
+						wilc_get_vif_idx(vif));
 			kfree(pu8keybuf);
 		} else if (pstrHostIFkeyAttr->action & REMOVEKEY) {
 			PRINT_D(HOSTINF_DBG, "Removing key\n");
@@ -1777,8 +1788,9 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 			wid.val = s8idxarray;
 			wid.size = 1;
 
-			result = send_config_pkt(SET_CFG, &wid, 1,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						&wid, 1,
+						wilc_get_vif_idx(vif));
 		} else {
 			wid.id = (u16)WID_KEY_ID;
 			wid.type = WID_CHAR;
@@ -1787,13 +1799,14 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 
 			PRINT_D(HOSTINF_DBG, "Setting default key index\n");
 
-			result = send_config_pkt(SET_CFG, &wid, 1,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						&wid, 1,
+						wilc_get_vif_idx(vif));
 		}
-		up(&hif_drv->hSemTestKeyBlock);
+		up(&hif_drv->sem_test_key_block);
 		break;
 
-	case WPARxGtk:
+	case WPA_RX_GTK:
 		if (pstrHostIFkeyAttr->action & ADDKEY_AP) {
 			pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL);
 			if (!pu8keybuf) {
@@ -1820,14 +1833,13 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 			strWIDList[1].val = (s8 *)pu8keybuf;
 			strWIDList[1].size = RX_MIC_KEY_MSG_LEN;
 
-			result = send_config_pkt(SET_CFG, strWIDList, 2,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						strWIDList, 2,
+						wilc_get_vif_idx(vif));
 
 			kfree(pu8keybuf);
-			up(&hif_drv->hSemTestKeyBlock);
-		}
-
-		if (pstrHostIFkeyAttr->action & ADDKEY) {
+			up(&hif_drv->sem_test_key_block);
+		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			PRINT_D(HOSTINF_DBG, "Handling group key(Rx) function\n");
 
 			pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL);
@@ -1837,10 +1849,10 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 				goto _WPARxGtk_end_case_;
 			}
 
-			if (hif_drv->enuHostIFstate == HOST_IF_CONNECTED)
-				memcpy(pu8keybuf, hif_drv->au8AssociatedBSSID, ETH_ALEN);
+			if (hif_drv->hif_state == HOST_IF_CONNECTED)
+				memcpy(pu8keybuf, hif_drv->assoc_bssid, ETH_ALEN);
 			else
-				PRINT_ER("Couldn't handle WPARxGtk while enuHostIFstate is not HOST_IF_CONNECTED\n");
+				PRINT_ER("Couldn't handle WPARxGtk while state is not HOST_IF_CONNECTED\n");
 
 			memcpy(pu8keybuf + 6, pstrHostIFkeyAttr->attr.wpa.seq, 8);
 			memcpy(pu8keybuf + 14, &pstrHostIFkeyAttr->attr.wpa.index, 1);
@@ -1853,11 +1865,12 @@ static int Handle_Key(struct host_if_drv *hif_drv,
 			wid.val = (s8 *)pu8keybuf;
 			wid.size = RX_MIC_KEY_MSG_LEN;
 
-			result = send_config_pkt(SET_CFG, &wid, 1,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						&wid, 1,
+						wilc_get_vif_idx(vif));
 
 			kfree(pu8keybuf);
-			up(&hif_drv->hSemTestKeyBlock);
+			up(&hif_drv->sem_test_key_block);
 		}
 _WPARxGtk_end_case_:
 		kfree(pstrHostIFkeyAttr->attr.wpa.key);
@@ -1867,7 +1880,7 @@ _WPARxGtk_end_case_:
 
 		break;
 
-	case WPAPtk:
+	case WPA_PTK:
 		if (pstrHostIFkeyAttr->action & ADDKEY_AP) {
 			pu8keybuf = kmalloc(PTK_KEY_MSG_LEN + 1, GFP_KERNEL);
 			if (!pu8keybuf) {
@@ -1892,12 +1905,12 @@ _WPARxGtk_end_case_:
 			strWIDList[1].val = (s8 *)pu8keybuf;
 			strWIDList[1].size = PTK_KEY_MSG_LEN + 1;
 
-			result = send_config_pkt(SET_CFG, strWIDList, 2,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						strWIDList, 2,
+						wilc_get_vif_idx(vif));
 			kfree(pu8keybuf);
-			up(&hif_drv->hSemTestKeyBlock);
-		}
-		if (pstrHostIFkeyAttr->action & ADDKEY) {
+			up(&hif_drv->sem_test_key_block);
+		} else if (pstrHostIFkeyAttr->action & ADDKEY) {
 			pu8keybuf = kmalloc(PTK_KEY_MSG_LEN, GFP_KERNEL);
 			if (!pu8keybuf) {
 				PRINT_ER("No buffer to send PTK Key\n");
@@ -1915,10 +1928,11 @@ _WPARxGtk_end_case_:
 			wid.val = (s8 *)pu8keybuf;
 			wid.size = PTK_KEY_MSG_LEN;
 
-			result = send_config_pkt(SET_CFG, &wid, 1,
-						 get_id_from_handler(hif_drv));
+			result = wilc_send_config_pkt(vif->wilc, SET_CFG,
+						&wid, 1,
+						wilc_get_vif_idx(vif));
 			kfree(pu8keybuf);
-			up(&hif_drv->hSemTestKeyBlock);
+			up(&hif_drv->sem_test_key_block);
 		}
 
 _WPAPtk_end_case_:
@@ -1950,8 +1964,8 @@ _WPAPtk_end_case_:
 		wid.val = (s8 *)pu8keybuf;
 		wid.size = (pstrHostIFkeyAttr->attr.pmkid.numpmkid * PMKSA_KEY_LEN) + 1;
 
-		result = send_config_pkt(SET_CFG, &wid, 1,
-					 get_id_from_handler(hif_drv));
+		result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+					 wilc_get_vif_idx(vif));
 
 		kfree(pu8keybuf);
 		break;
@@ -1963,9 +1977,10 @@ _WPAPtk_end_case_:
 	return result;
 }
 
-static void Handle_Disconnect(struct host_if_drv *hif_drv)
+static void Handle_Disconnect(struct wilc_vif *vif)
 {
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	s32 result = 0;
 	u16 u16DummyReasonCode = 0;
@@ -1977,13 +1992,13 @@ static void Handle_Disconnect(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Sending disconnect request\n");
 
-	g_obtainingIP = false;
-	host_int_set_power_mgmt(hif_drv, 0, 0);
+	wilc_optaining_ip = false;
+	wilc_set_power_mgmt(vif, 0, 0);
 
-	eth_zero_addr(u8ConnectedSSID);
+	eth_zero_addr(wilc_connected_ssid);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to send dissconect config packet\n");
@@ -1996,66 +2011,75 @@ static void Handle_Disconnect(struct host_if_drv *hif_drv)
 		strDisconnectNotifInfo.ie = NULL;
 		strDisconnectNotifInfo.ie_len = 0;
 
-		if (hif_drv->usr_scan_req.pfUserScanResult) {
-			del_timer(&hif_drv->hScanTimer);
-			hif_drv->usr_scan_req.pfUserScanResult(SCAN_EVENT_ABORTED, NULL,
-							       hif_drv->usr_scan_req.u32UserScanPvoid, NULL);
-
-			hif_drv->usr_scan_req.pfUserScanResult = NULL;
+		if (hif_drv->usr_scan_req.scan_result) {
+			del_timer(&hif_drv->scan_timer);
+			hif_drv->usr_scan_req.scan_result(SCAN_EVENT_ABORTED,
+							  NULL,
+							  hif_drv->usr_scan_req.arg,
+							  NULL);
+			hif_drv->usr_scan_req.scan_result = NULL;
 		}
 
-		if (hif_drv->usr_conn_req.pfUserConnectResult) {
-			if (hif_drv->enuHostIFstate == HOST_IF_WAITING_CONN_RESP) {
+		if (hif_drv->usr_conn_req.conn_result) {
+			if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
 				PRINT_D(HOSTINF_DBG, "Upper layer requested termination of connection\n");
-				del_timer(&hif_drv->hConnectTimer);
+				del_timer(&hif_drv->connect_timer);
 			}
 
-			hif_drv->usr_conn_req.pfUserConnectResult(CONN_DISCONN_EVENT_DISCONN_NOTIF, NULL,
-								  0, &strDisconnectNotifInfo, hif_drv->usr_conn_req.u32UserConnectPvoid);
+			hif_drv->usr_conn_req.conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF,
+							  NULL,
+							  0,
+							  &strDisconnectNotifInfo,
+							  hif_drv->usr_conn_req.arg);
 		} else {
-			PRINT_ER("usr_conn_req.pfUserConnectResult = NULL\n");
+			PRINT_ER("usr_conn_req.conn_result = NULL\n");
 		}
 
 		scan_while_connected = false;
 
-		hif_drv->enuHostIFstate = HOST_IF_IDLE;
+		hif_drv->hif_state = HOST_IF_IDLE;
 
-		eth_zero_addr(hif_drv->au8AssociatedBSSID);
+		eth_zero_addr(hif_drv->assoc_bssid);
 
-		hif_drv->usr_conn_req.ssidLen = 0;
+		hif_drv->usr_conn_req.ssid_len = 0;
 		kfree(hif_drv->usr_conn_req.pu8ssid);
+		hif_drv->usr_conn_req.pu8ssid = NULL;
 		kfree(hif_drv->usr_conn_req.pu8bssid);
-		hif_drv->usr_conn_req.ConnReqIEsLen = 0;
-		kfree(hif_drv->usr_conn_req.pu8ConnReqIEs);
+		hif_drv->usr_conn_req.pu8bssid = NULL;
+		hif_drv->usr_conn_req.ies_len = 0;
+		kfree(hif_drv->usr_conn_req.ies);
+		hif_drv->usr_conn_req.ies = NULL;
 
-		if (join_req && join_req_drv == hif_drv) {
+		if (join_req && join_req_vif == vif) {
 			kfree(join_req);
 			join_req = NULL;
 		}
 
-		if (info_element && join_req_drv == hif_drv) {
+		if (info_element && join_req_vif == vif) {
 			kfree(info_element);
 			info_element = NULL;
 		}
 	}
 
-	up(&hif_drv->hSemTestDisconnectBlock);
+	up(&hif_drv->sem_test_disconn_block);
 }
 
-void resolve_disconnect_aberration(struct host_if_drv *hif_drv)
+void wilc_resolve_disconnect_aberration(struct wilc_vif *vif)
 {
-	if (!hif_drv)
+	if (!vif->hif_drv)
 		return;
-	if ((hif_drv->enuHostIFstate == HOST_IF_WAITING_CONN_RESP) || (hif_drv->enuHostIFstate == HOST_IF_CONNECTING)) {
+	if ((vif->hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) ||
+	    (vif->hif_drv->hif_state == HOST_IF_CONNECTING)) {
 		PRINT_D(HOSTINF_DBG, "\n\n<< correcting Supplicant state machine >>\n\n");
-		host_int_disconnect(hif_drv, 1);
+		wilc_disconnect(vif, 1);
 	}
 }
 
-static s32 Handle_GetChnl(struct host_if_drv *hif_drv)
+static s32 Handle_GetChnl(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	wid.id = (u16)WID_CURRENT_CHANNEL;
 	wid.type = WID_CHAR;
@@ -2064,20 +2088,20 @@ static s32 Handle_GetChnl(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Getting channel value\n");
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to get channel number\n");
 		result = -EFAULT;
 	}
 
-	up(&hif_drv->hSemGetCHNL);
+	up(&hif_drv->sem_get_chnl);
 
 	return result;
 }
 
-static void Handle_GetRssi(struct host_if_drv *hif_drv)
+static void Handle_GetRssi(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
@@ -2089,20 +2113,21 @@ static void Handle_GetRssi(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Getting RSSI value\n");
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result) {
 		PRINT_ER("Failed to get RSSI value\n");
 		result = -EFAULT;
 	}
 
-	up(&hif_drv->hSemGetRSSI);
+	up(&vif->hif_drv->sem_get_rssi);
 }
 
-static void Handle_GetLinkspeed(struct host_if_drv *hif_drv)
+static void Handle_GetLinkspeed(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	link_speed = 0;
 
@@ -2113,17 +2138,18 @@ static void Handle_GetLinkspeed(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Getting LINKSPEED value\n");
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result) {
 		PRINT_ER("Failed to get LINKSPEED value\n");
 		result = -EFAULT;
 	}
 
-	up(&hif_drv->hSemGetLINKSPEED);
+	up(&hif_drv->sem_get_link_speed);
 }
 
-s32 Handle_GetStatistics(struct host_if_drv *hif_drv, struct rf_info *pstrStatistics)
+static s32 Handle_GetStatistics(struct wilc_vif *vif,
+				struct rf_info *pstrStatistics)
 {
 	struct wid strWIDList[5];
 	u32 u32WidsCount = 0, result = 0;
@@ -2131,35 +2157,36 @@ s32 Handle_GetStatistics(struct host_if_drv *hif_drv, struct rf_info *pstrStatis
 	strWIDList[u32WidsCount].id = WID_LINKSPEED;
 	strWIDList[u32WidsCount].type = WID_CHAR;
 	strWIDList[u32WidsCount].size = sizeof(char);
-	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->u8LinkSpeed;
+	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->link_speed;
 	u32WidsCount++;
 
 	strWIDList[u32WidsCount].id = WID_RSSI;
 	strWIDList[u32WidsCount].type = WID_CHAR;
 	strWIDList[u32WidsCount].size = sizeof(char);
-	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->s8RSSI;
+	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->rssi;
 	u32WidsCount++;
 
 	strWIDList[u32WidsCount].id = WID_SUCCESS_FRAME_COUNT;
 	strWIDList[u32WidsCount].type = WID_INT;
 	strWIDList[u32WidsCount].size = sizeof(u32);
-	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->u32TxCount;
+	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->tx_cnt;
 	u32WidsCount++;
 
 	strWIDList[u32WidsCount].id = WID_RECEIVED_FRAGMENT_COUNT;
 	strWIDList[u32WidsCount].type = WID_INT;
 	strWIDList[u32WidsCount].size = sizeof(u32);
-	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->u32RxCount;
+	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->rx_cnt;
 	u32WidsCount++;
 
 	strWIDList[u32WidsCount].id = WID_FAILED_COUNT;
 	strWIDList[u32WidsCount].type = WID_INT;
 	strWIDList[u32WidsCount].size = sizeof(u32);
-	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->u32TxFailureCount;
+	strWIDList[u32WidsCount].val = (s8 *)&pstrStatistics->tx_fail_cnt;
 	u32WidsCount++;
 
-	result = send_config_pkt(GET_CFG, strWIDList, u32WidsCount,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, strWIDList,
+				u32WidsCount,
+				wilc_get_vif_idx(vif));
 
 	if (result)
 		PRINT_ER("Failed to send scan paramters config packet\n");
@@ -2168,12 +2195,13 @@ s32 Handle_GetStatistics(struct host_if_drv *hif_drv, struct rf_info *pstrStatis
 	return 0;
 }
 
-static s32 Handle_Get_InActiveTime(struct host_if_drv *hif_drv,
+static s32 Handle_Get_InActiveTime(struct wilc_vif *vif,
 				   struct sta_inactive_t *strHostIfStaInactiveT)
 {
 	s32 result = 0;
 	u8 *stamac;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	wid.id = (u16)WID_SET_STA_MAC_INACTIVE_TIME;
 	wid.type = WID_STR;
@@ -2185,8 +2213,8 @@ static s32 Handle_Get_InActiveTime(struct host_if_drv *hif_drv,
 
 	PRINT_D(CFG80211_DBG, "SETING STA inactive time\n");
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to SET incative time\n");
@@ -2198,8 +2226,8 @@ static s32 Handle_Get_InActiveTime(struct host_if_drv *hif_drv,
 	wid.val = (s8 *)&inactive_time;
 	wid.size = sizeof(u32);
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 
 	if (result) {
 		PRINT_ER("Failed to get incative time\n");
@@ -2208,12 +2236,12 @@ static s32 Handle_Get_InActiveTime(struct host_if_drv *hif_drv,
 
 	PRINT_D(CFG80211_DBG, "Getting inactive time : %d\n", inactive_time);
 
-	up(&hif_drv->hSemInactiveTime);
+	up(&hif_drv->sem_inactive_time);
 
 	return result;
 }
 
-static void Handle_AddBeacon(struct host_if_drv *hif_drv,
+static void Handle_AddBeacon(struct wilc_vif *vif,
 			     struct beacon_attr *pstrSetBeaconParam)
 {
 	s32 result = 0;
@@ -2253,12 +2281,12 @@ static void Handle_AddBeacon(struct host_if_drv *hif_drv,
 	*pu8CurrByte++ = ((pstrSetBeaconParam->tail_len >> 16) & 0xFF);
 	*pu8CurrByte++ = ((pstrSetBeaconParam->tail_len >> 24) & 0xFF);
 
-	if (pstrSetBeaconParam->tail > 0)
+	if (pstrSetBeaconParam->tail)
 		memcpy(pu8CurrByte, pstrSetBeaconParam->tail, pstrSetBeaconParam->tail_len);
 	pu8CurrByte += pstrSetBeaconParam->tail_len;
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send add beacon config packet\n");
 
@@ -2268,7 +2296,7 @@ ERRORHANDLER:
 	kfree(pstrSetBeaconParam->tail);
 }
 
-static void Handle_DelBeacon(struct host_if_drv *hif_drv)
+static void Handle_DelBeacon(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct wid wid;
@@ -2286,8 +2314,8 @@ static void Handle_DelBeacon(struct host_if_drv *hif_drv)
 
 	PRINT_D(HOSTINF_DBG, "Deleting BEACON\n");
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send delete beacon config packet\n");
 }
@@ -2300,45 +2328,47 @@ static u32 WILC_HostIf_PackStaParam(u8 *pu8Buffer,
 	pu8CurrByte = pu8Buffer;
 
 	PRINT_D(HOSTINF_DBG, "Packing STA params\n");
-	memcpy(pu8CurrByte, pstrStationParam->au8BSSID, ETH_ALEN);
+	memcpy(pu8CurrByte, pstrStationParam->bssid, ETH_ALEN);
 	pu8CurrByte +=  ETH_ALEN;
 
-	*pu8CurrByte++ = pstrStationParam->u16AssocID & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u16AssocID >> 8) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->aid & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->aid >> 8) & 0xFF;
 
-	*pu8CurrByte++ = pstrStationParam->u8NumRates;
-	if (pstrStationParam->u8NumRates > 0)
-		memcpy(pu8CurrByte, pstrStationParam->pu8Rates, pstrStationParam->u8NumRates);
-	pu8CurrByte += pstrStationParam->u8NumRates;
+	*pu8CurrByte++ = pstrStationParam->rates_len;
+	if (pstrStationParam->rates_len > 0)
+		memcpy(pu8CurrByte, pstrStationParam->rates,
+		       pstrStationParam->rates_len);
+	pu8CurrByte += pstrStationParam->rates_len;
 
-	*pu8CurrByte++ = pstrStationParam->bIsHTSupported;
-	*pu8CurrByte++ = pstrStationParam->u16HTCapInfo & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u16HTCapInfo >> 8) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->ht_supported;
+	*pu8CurrByte++ = pstrStationParam->ht_capa_info & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->ht_capa_info >> 8) & 0xFF;
 
-	*pu8CurrByte++ = pstrStationParam->u8AmpduParams;
-	memcpy(pu8CurrByte, pstrStationParam->au8SuppMCsSet, WILC_SUPP_MCS_SET_SIZE);
+	*pu8CurrByte++ = pstrStationParam->ht_ampdu_params;
+	memcpy(pu8CurrByte, pstrStationParam->ht_supp_mcs_set,
+	       WILC_SUPP_MCS_SET_SIZE);
 	pu8CurrByte += WILC_SUPP_MCS_SET_SIZE;
 
-	*pu8CurrByte++ = pstrStationParam->u16HTExtParams & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u16HTExtParams >> 8) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->ht_ext_params & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->ht_ext_params >> 8) & 0xFF;
 
-	*pu8CurrByte++ = pstrStationParam->u32TxBeamformingCap & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u32TxBeamformingCap >> 8) & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u32TxBeamformingCap >> 16) & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u32TxBeamformingCap >> 24) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->ht_tx_bf_cap & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->ht_tx_bf_cap >> 8) & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->ht_tx_bf_cap >> 16) & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->ht_tx_bf_cap >> 24) & 0xFF;
 
-	*pu8CurrByte++ = pstrStationParam->u8ASELCap;
+	*pu8CurrByte++ = pstrStationParam->ht_ante_sel;
 
-	*pu8CurrByte++ = pstrStationParam->u16FlagsMask & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u16FlagsMask >> 8) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->flags_mask & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->flags_mask >> 8) & 0xFF;
 
-	*pu8CurrByte++ = pstrStationParam->u16FlagsSet & 0xFF;
-	*pu8CurrByte++ = (pstrStationParam->u16FlagsSet >> 8) & 0xFF;
+	*pu8CurrByte++ = pstrStationParam->flags_set & 0xFF;
+	*pu8CurrByte++ = (pstrStationParam->flags_set >> 8) & 0xFF;
 
 	return pu8CurrByte - pu8Buffer;
 }
 
-static void Handle_AddStation(struct host_if_drv *hif_drv,
+static void Handle_AddStation(struct wilc_vif *vif,
 			      struct add_sta_param *pstrStationParam)
 {
 	s32 result = 0;
@@ -2348,7 +2378,7 @@ static void Handle_AddStation(struct host_if_drv *hif_drv,
 	PRINT_D(HOSTINF_DBG, "Handling add station\n");
 	wid.id = (u16)WID_ADD_STA;
 	wid.type = WID_BIN;
-	wid.size = WILC_ADD_STA_LENGTH + pstrStationParam->u8NumRates;
+	wid.size = WILC_ADD_STA_LENGTH + pstrStationParam->rates_len;
 
 	wid.val = kmalloc(wid.size, GFP_KERNEL);
 	if (!wid.val)
@@ -2357,17 +2387,17 @@ static void Handle_AddStation(struct host_if_drv *hif_drv,
 	pu8CurrByte = wid.val;
 	pu8CurrByte += WILC_HostIf_PackStaParam(pu8CurrByte, pstrStationParam);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result != 0)
 		PRINT_ER("Failed to send add station config packet\n");
 
 ERRORHANDLER:
-	kfree(pstrStationParam->pu8Rates);
+	kfree(pstrStationParam->rates);
 	kfree(wid.val);
 }
 
-static void Handle_DelAllSta(struct host_if_drv *hif_drv,
+static void Handle_DelAllSta(struct wilc_vif *vif,
 			     struct del_all_sta *pstrDelAllStaParam)
 {
 	s32 result = 0;
@@ -2399,8 +2429,8 @@ static void Handle_DelAllSta(struct host_if_drv *hif_drv,
 		pu8CurrByte += ETH_ALEN;
 	}
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send add station config packet\n");
 
@@ -2410,7 +2440,7 @@ ERRORHANDLER:
 	up(&hif_sema_wait_response);
 }
 
-static void Handle_DelStation(struct host_if_drv *hif_drv,
+static void Handle_DelStation(struct wilc_vif *vif,
 			      struct del_sta *pstrDelStaParam)
 {
 	s32 result = 0;
@@ -2431,8 +2461,8 @@ static void Handle_DelStation(struct host_if_drv *hif_drv,
 
 	memcpy(pu8CurrByte, pstrDelStaParam->mac_addr, ETH_ALEN);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send add station config packet\n");
 
@@ -2440,7 +2470,7 @@ ERRORHANDLER:
 	kfree(wid.val);
 }
 
-static void Handle_EditStation(struct host_if_drv *hif_drv,
+static void Handle_EditStation(struct wilc_vif *vif,
 			       struct add_sta_param *pstrStationParam)
 {
 	s32 result = 0;
@@ -2449,7 +2479,7 @@ static void Handle_EditStation(struct host_if_drv *hif_drv,
 
 	wid.id = (u16)WID_EDIT_STA;
 	wid.type = WID_BIN;
-	wid.size = WILC_ADD_STA_LENGTH + pstrStationParam->u8NumRates;
+	wid.size = WILC_ADD_STA_LENGTH + pstrStationParam->rates_len;
 
 	PRINT_D(HOSTINF_DBG, "Handling edit station\n");
 	wid.val = kmalloc(wid.size, GFP_KERNEL);
@@ -2459,52 +2489,54 @@ static void Handle_EditStation(struct host_if_drv *hif_drv,
 	pu8CurrByte = wid.val;
 	pu8CurrByte += WILC_HostIf_PackStaParam(pu8CurrByte, pstrStationParam);
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send edit station config packet\n");
 
 ERRORHANDLER:
-	kfree(pstrStationParam->pu8Rates);
+	kfree(pstrStationParam->rates);
 	kfree(wid.val);
 }
 
-static int Handle_RemainOnChan(struct host_if_drv *hif_drv,
+static int Handle_RemainOnChan(struct wilc_vif *vif,
 			       struct remain_ch *pstrHostIfRemainOnChan)
 {
 	s32 result = 0;
 	u8 u8remain_on_chan_flag;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv->remain_on_ch_pending) {
-		hif_drv->remain_on_ch.pVoid = pstrHostIfRemainOnChan->pVoid;
-		hif_drv->remain_on_ch.pRemainOnChanExpired = pstrHostIfRemainOnChan->pRemainOnChanExpired;
-		hif_drv->remain_on_ch.pRemainOnChanReady = pstrHostIfRemainOnChan->pRemainOnChanReady;
-		hif_drv->remain_on_ch.u16Channel = pstrHostIfRemainOnChan->u16Channel;
-		hif_drv->remain_on_ch.u32ListenSessionID = pstrHostIfRemainOnChan->u32ListenSessionID;
+		hif_drv->remain_on_ch.arg = pstrHostIfRemainOnChan->arg;
+		hif_drv->remain_on_ch.expired = pstrHostIfRemainOnChan->expired;
+		hif_drv->remain_on_ch.ready = pstrHostIfRemainOnChan->ready;
+		hif_drv->remain_on_ch.ch = pstrHostIfRemainOnChan->ch;
+		hif_drv->remain_on_ch.id = pstrHostIfRemainOnChan->id;
 	} else {
-		pstrHostIfRemainOnChan->u16Channel = hif_drv->remain_on_ch.u16Channel;
+		pstrHostIfRemainOnChan->ch = hif_drv->remain_on_ch.ch;
 	}
 
-	if (hif_drv->usr_scan_req.pfUserScanResult) {
+	if (hif_drv->usr_scan_req.scan_result) {
 		PRINT_INFO(GENERIC_DBG, "Required to remain on chan while scanning return\n");
 		hif_drv->remain_on_ch_pending = 1;
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
-	if (hif_drv->enuHostIFstate == HOST_IF_WAITING_CONN_RESP) {
+	if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
 		PRINT_INFO(GENERIC_DBG, "Required to remain on chan while connecting return\n");
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
 
-	if (g_obtainingIP || connecting) {
+	if (wilc_optaining_ip || wilc_connecting) {
 		PRINT_D(GENERIC_DBG, "[handle_scan]: Don't do obss scan until IP adresss is obtained\n");
 		result = -EBUSY;
 		goto ERRORHANDLER;
 	}
 
-	PRINT_D(HOSTINF_DBG, "Setting channel :%d\n", pstrHostIfRemainOnChan->u16Channel);
+	PRINT_D(HOSTINF_DBG, "Setting channel :%d\n",
+		pstrHostIfRemainOnChan->ch);
 
 	u8remain_on_chan_flag = true;
 	wid.id = (u16)WID_REMAIN_ON_CHAN;
@@ -2517,23 +2549,23 @@ static int Handle_RemainOnChan(struct host_if_drv *hif_drv,
 	}
 
 	wid.val[0] = u8remain_on_chan_flag;
-	wid.val[1] = (s8)pstrHostIfRemainOnChan->u16Channel;
+	wid.val[1] = (s8)pstrHostIfRemainOnChan->ch;
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result != 0)
 		PRINT_ER("Failed to set remain on channel\n");
 
 ERRORHANDLER:
 	{
 		P2P_LISTEN_STATE = 1;
-		hif_drv->hRemainOnChannel.data = (unsigned long)hif_drv;
-		mod_timer(&hif_drv->hRemainOnChannel,
+		hif_drv->remain_on_ch_timer.data = (unsigned long)vif;
+		mod_timer(&hif_drv->remain_on_ch_timer,
 			  jiffies +
 			  msecs_to_jiffies(pstrHostIfRemainOnChan->u32duration));
 
-		if (hif_drv->remain_on_ch.pRemainOnChanReady)
-			hif_drv->remain_on_ch.pRemainOnChanReady(hif_drv->remain_on_ch.pVoid);
+		if (hif_drv->remain_on_ch.ready)
+			hif_drv->remain_on_ch.ready(hif_drv->remain_on_ch.arg);
 
 		if (hif_drv->remain_on_ch_pending)
 			hif_drv->remain_on_ch_pending = 0;
@@ -2542,14 +2574,16 @@ ERRORHANDLER:
 	return result;
 }
 
-static int Handle_RegisterFrame(struct host_if_drv *hif_drv,
+static int Handle_RegisterFrame(struct wilc_vif *vif,
 				struct reg_frame *pstrHostIfRegisterFrame)
 {
 	s32 result = 0;
 	struct wid wid;
 	u8 *pu8CurrByte;
 
-	PRINT_D(HOSTINF_DBG, "Handling frame register Flag : %d FrameType: %d\n", pstrHostIfRegisterFrame->bReg, pstrHostIfRegisterFrame->u16FrameType);
+	PRINT_D(HOSTINF_DBG, "Handling frame register : %d FrameType: %d\n",
+		pstrHostIfRegisterFrame->reg,
+		pstrHostIfRegisterFrame->frame_type);
 
 	wid.id = (u16)WID_REGISTER_FRAME;
 	wid.type = WID_STR;
@@ -2559,15 +2593,14 @@ static int Handle_RegisterFrame(struct host_if_drv *hif_drv,
 
 	pu8CurrByte = wid.val;
 
-	*pu8CurrByte++ = pstrHostIfRegisterFrame->bReg;
-	*pu8CurrByte++ = pstrHostIfRegisterFrame->u8Regid;
-	memcpy(pu8CurrByte, &pstrHostIfRegisterFrame->u16FrameType,
-	       sizeof(u16));
+	*pu8CurrByte++ = pstrHostIfRegisterFrame->reg;
+	*pu8CurrByte++ = pstrHostIfRegisterFrame->reg_id;
+	memcpy(pu8CurrByte, &pstrHostIfRegisterFrame->frame_type, sizeof(u16));
 
 	wid.size = sizeof(u16) + 2;
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result) {
 		PRINT_ER("Failed to frame register config packet\n");
 		result = -EINVAL;
@@ -2576,12 +2609,13 @@ static int Handle_RegisterFrame(struct host_if_drv *hif_drv,
 	return result;
 }
 
-static u32 Handle_ListenStateExpired(struct host_if_drv *hif_drv,
+static u32 Handle_ListenStateExpired(struct wilc_vif *vif,
 				     struct remain_ch *pstrHostIfRemainOnChan)
 {
 	u8 u8remain_on_chan_flag;
 	struct wid wid;
 	s32 result = 0;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	PRINT_D(HOSTINF_DBG, "CANCEL REMAIN ON CHAN\n");
 
@@ -2592,22 +2626,24 @@ static u32 Handle_ListenStateExpired(struct host_if_drv *hif_drv,
 		wid.size = 2;
 		wid.val = kmalloc(wid.size, GFP_KERNEL);
 
-		if (!wid.val)
+		if (!wid.val) {
 			PRINT_ER("Failed to allocate memory\n");
+			return -ENOMEM;
+		}
 
 		wid.val[0] = u8remain_on_chan_flag;
 		wid.val[1] = FALSE_FRMWR_CHANNEL;
 
-		result = send_config_pkt(SET_CFG, &wid, 1,
-					 get_id_from_handler(hif_drv));
+		result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+					 wilc_get_vif_idx(vif));
 		if (result != 0) {
 			PRINT_ER("Failed to set remain on channel\n");
 			goto _done_;
 		}
 
-		if (hif_drv->remain_on_ch.pRemainOnChanExpired) {
-			hif_drv->remain_on_ch.pRemainOnChanExpired(hif_drv->remain_on_ch.pVoid,
-								   pstrHostIfRemainOnChan->u32ListenSessionID);
+		if (hif_drv->remain_on_ch.expired) {
+			hif_drv->remain_on_ch.expired(hif_drv->remain_on_ch.arg,
+						      pstrHostIfRemainOnChan->id);
 		}
 		P2P_LISTEN_STATE = 0;
 	} else {
@@ -2623,21 +2659,21 @@ static void ListenTimerCB(unsigned long arg)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
-	struct host_if_drv *hif_drv = (struct host_if_drv *)arg;
+	struct wilc_vif *vif = (struct wilc_vif *)arg;
 
-	del_timer(&hif_drv->hRemainOnChannel);
+	del_timer(&vif->hif_drv->remain_on_ch_timer);
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_LISTEN_TIMER_FIRED;
-	msg.drv = hif_drv;
-	msg.body.remain_on_ch.u32ListenSessionID = hif_drv->remain_on_ch.u32ListenSessionID;
+	msg.vif = vif;
+	msg.body.remain_on_ch.id = vif->hif_drv->remain_on_ch.id;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("wilc_mq_send fail\n");
 }
 
-static void Handle_PowerManagement(struct host_if_drv *hif_drv,
+static void Handle_PowerManagement(struct wilc_vif *vif,
 				   struct power_mgmt_param *strPowerMgmtParam)
 {
 	s32 result = 0;
@@ -2656,13 +2692,13 @@ static void Handle_PowerManagement(struct host_if_drv *hif_drv,
 
 	PRINT_D(HOSTINF_DBG, "Handling Power Management\n");
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send power management config packet\n");
 }
 
-static void Handle_SetMulticastFilter(struct host_if_drv *hif_drv,
+static void Handle_SetMulticastFilter(struct wilc_vif *vif,
 				      struct set_multicast *strHostIfSetMulti)
 {
 	s32 result = 0;
@@ -2680,9 +2716,9 @@ static void Handle_SetMulticastFilter(struct host_if_drv *hif_drv,
 
 	pu8CurrByte = wid.val;
 	*pu8CurrByte++ = (strHostIfSetMulti->enabled & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 8) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 16) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 24) & 0xFF);
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
 
 	*pu8CurrByte++ = (strHostIfSetMulti->cnt & 0xFF);
 	*pu8CurrByte++ = ((strHostIfSetMulti->cnt >> 8) & 0xFF);
@@ -2690,10 +2726,11 @@ static void Handle_SetMulticastFilter(struct host_if_drv *hif_drv,
 	*pu8CurrByte++ = ((strHostIfSetMulti->cnt >> 24) & 0xFF);
 
 	if ((strHostIfSetMulti->cnt) > 0)
-		memcpy(pu8CurrByte, gau8MulticastMacAddrList, ((strHostIfSetMulti->cnt) * ETH_ALEN));
+		memcpy(pu8CurrByte, wilc_multicast_mac_addr_list,
+		       ((strHostIfSetMulti->cnt) * ETH_ALEN));
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_ER("Failed to send setup multicast config packet\n");
 
@@ -2701,71 +2738,7 @@ ERRORHANDLER:
 	kfree(wid.val);
 }
 
-static s32 Handle_AddBASession(struct host_if_drv *hif_drv,
-			       struct ba_session_info *strHostIfBASessionInfo)
-{
-	s32 result = 0;
-	struct wid wid;
-	int AddbaTimeout = 100;
-	char *ptr = NULL;
-
-	PRINT_D(HOSTINF_DBG, "Opening Block Ack session with\nBSSID = %.2x:%.2x:%.2x\nTID=%d\nBufferSize == %d\nSessionTimeOut = %d\n",
-		strHostIfBASessionInfo->au8Bssid[0],
-		strHostIfBASessionInfo->au8Bssid[1],
-		strHostIfBASessionInfo->au8Bssid[2],
-		strHostIfBASessionInfo->u16BufferSize,
-		strHostIfBASessionInfo->u16SessionTimeout,
-		strHostIfBASessionInfo->u8Ted);
-
-	wid.id = (u16)WID_11E_P_ACTION_REQ;
-	wid.type = WID_STR;
-	wid.val = kmalloc(BLOCK_ACK_REQ_SIZE, GFP_KERNEL);
-	wid.size = BLOCK_ACK_REQ_SIZE;
-	ptr = wid.val;
-	*ptr++ = 0x14;
-	*ptr++ = 0x3;
-	*ptr++ = 0x0;
-	memcpy(ptr, strHostIfBASessionInfo->au8Bssid, ETH_ALEN);
-	ptr += ETH_ALEN;
-	*ptr++ = strHostIfBASessionInfo->u8Ted;
-	*ptr++ = 1;
-	*ptr++ = (strHostIfBASessionInfo->u16BufferSize & 0xFF);
-	*ptr++ = ((strHostIfBASessionInfo->u16BufferSize >> 16) & 0xFF);
-	*ptr++ = (strHostIfBASessionInfo->u16SessionTimeout & 0xFF);
-	*ptr++ = ((strHostIfBASessionInfo->u16SessionTimeout >> 16) & 0xFF);
-	*ptr++ = (AddbaTimeout & 0xFF);
-	*ptr++ = ((AddbaTimeout >> 16) & 0xFF);
-	*ptr++ = 8;
-	*ptr++ = 0;
-
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
-	if (result)
-		PRINT_D(HOSTINF_DBG, "Couldn't open BA Session\n");
-
-	wid.id = (u16)WID_11E_P_ACTION_REQ;
-	wid.type = WID_STR;
-	wid.size = 15;
-	ptr = wid.val;
-	*ptr++ = 15;
-	*ptr++ = 7;
-	*ptr++ = 0x2;
-	memcpy(ptr, strHostIfBASessionInfo->au8Bssid, ETH_ALEN);
-	ptr += ETH_ALEN;
-	*ptr++ = strHostIfBASessionInfo->u8Ted;
-	*ptr++ = 8;
-	*ptr++ = (strHostIfBASessionInfo->u16BufferSize & 0xFF);
-	*ptr++ = ((strHostIfBASessionInfo->u16SessionTimeout >> 16) & 0xFF);
-	*ptr++ = 3;
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
-
-	kfree(wid.val);
-
-	return result;
-}
-
-static s32 Handle_DelAllRxBASessions(struct host_if_drv *hif_drv,
+static s32 Handle_DelAllRxBASessions(struct wilc_vif *vif,
 				     struct ba_session_info *strHostIfBASessionInfo)
 {
 	s32 result = 0;
@@ -2773,10 +2746,10 @@ static s32 Handle_DelAllRxBASessions(struct host_if_drv *hif_drv,
 	char *ptr = NULL;
 
 	PRINT_D(GENERIC_DBG, "Delete Block Ack session with\nBSSID = %.2x:%.2x:%.2x\nTID=%d\n",
-		strHostIfBASessionInfo->au8Bssid[0],
-		strHostIfBASessionInfo->au8Bssid[1],
-		strHostIfBASessionInfo->au8Bssid[2],
-		strHostIfBASessionInfo->u8Ted);
+		strHostIfBASessionInfo->bssid[0],
+		strHostIfBASessionInfo->bssid[1],
+		strHostIfBASessionInfo->bssid[2],
+		strHostIfBASessionInfo->tid);
 
 	wid.id = (u16)WID_DEL_ALL_RX_BA;
 	wid.type = WID_STR;
@@ -2786,14 +2759,14 @@ static s32 Handle_DelAllRxBASessions(struct host_if_drv *hif_drv,
 	*ptr++ = 0x14;
 	*ptr++ = 0x3;
 	*ptr++ = 0x2;
-	memcpy(ptr, strHostIfBASessionInfo->au8Bssid, ETH_ALEN);
+	memcpy(ptr, strHostIfBASessionInfo->bssid, ETH_ALEN);
 	ptr += ETH_ALEN;
-	*ptr++ = strHostIfBASessionInfo->u8Ted;
+	*ptr++ = strHostIfBASessionInfo->tid;
 	*ptr++ = 0;
 	*ptr++ = 32;
 
-	result = send_config_pkt(SET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, SET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result)
 		PRINT_D(HOSTINF_DBG, "Couldn't delete BA Session\n");
 
@@ -2808,19 +2781,20 @@ static int hostIFthread(void *pvArg)
 {
 	u32 u32Ret;
 	struct host_if_msg msg;
-	struct host_if_drv *hif_drv;
+	struct wilc *wilc = (struct wilc*)pvArg;
+	struct wilc_vif *vif;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	while (1) {
 		wilc_mq_recv(&hif_msg_q, &msg, sizeof(struct host_if_msg), &u32Ret);
-		hif_drv = (struct host_if_drv *)msg.drv;
+		vif = msg.vif;
 		if (msg.id == HOST_IF_MSG_EXIT) {
 			PRINT_D(GENERIC_DBG, "THREAD: Exiting HostIfThread\n");
 			break;
 		}
 
-		if ((!g_wilc_initialized)) {
+		if ((!wilc_initialized)) {
 			PRINT_D(GENERIC_DBG, "--WAIT--");
 			usleep_range(200 * 1000, 200 * 1000);
 			wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -2828,7 +2802,7 @@ static int hostIFthread(void *pvArg)
 		}
 
 		if (msg.id == HOST_IF_MSG_CONNECT &&
-		    hif_drv->usr_scan_req.pfUserScanResult) {
+		    vif->hif_drv->usr_scan_req.scan_result) {
 			PRINT_D(HOSTINF_DBG, "Requeue connect request till scan done received\n");
 			wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 			usleep_range(2 * 1000, 2 * 1000);
@@ -2841,167 +2815,169 @@ static int hostIFthread(void *pvArg)
 			break;
 
 		case HOST_IF_MSG_SCAN:
-			Handle_Scan(msg.drv, &msg.body.scan_info);
+			Handle_Scan(msg.vif, &msg.body.scan_info);
 			break;
 
 		case HOST_IF_MSG_CONNECT:
-			Handle_Connect(msg.drv, &msg.body.con_info);
+			Handle_Connect(msg.vif, &msg.body.con_info);
 			break;
 
 		case HOST_IF_MSG_FLUSH_CONNECT:
-			Handle_FlushConnect(msg.drv);
+			Handle_FlushConnect(msg.vif);
 			break;
 
 		case HOST_IF_MSG_RCVD_NTWRK_INFO:
-			Handle_RcvdNtwrkInfo(msg.drv, &msg.body.net_info);
+			Handle_RcvdNtwrkInfo(msg.vif, &msg.body.net_info);
 			break;
 
 		case HOST_IF_MSG_RCVD_GNRL_ASYNC_INFO:
-			Handle_RcvdGnrlAsyncInfo(msg.drv, &msg.body.async_info);
+			Handle_RcvdGnrlAsyncInfo(vif,
+						 &msg.body.async_info);
 			break;
 
 		case HOST_IF_MSG_KEY:
-			Handle_Key(msg.drv, &msg.body.key_info);
+			Handle_Key(msg.vif, &msg.body.key_info);
 			break;
 
 		case HOST_IF_MSG_CFG_PARAMS:
-
-			Handle_CfgParam(msg.drv, &msg.body.cfg_info);
+			handle_cfg_param(msg.vif, &msg.body.cfg_info);
 			break;
 
 		case HOST_IF_MSG_SET_CHANNEL:
-			Handle_SetChannel(msg.drv, &msg.body.channel_info);
+			handle_set_channel(msg.vif, &msg.body.channel_info);
 			break;
 
 		case HOST_IF_MSG_DISCONNECT:
-			Handle_Disconnect(msg.drv);
+			Handle_Disconnect(msg.vif);
 			break;
 
 		case HOST_IF_MSG_RCVD_SCAN_COMPLETE:
-			del_timer(&hif_drv->hScanTimer);
+			del_timer(&vif->hif_drv->scan_timer);
 			PRINT_D(HOSTINF_DBG, "scan completed successfully\n");
 
-			if (!linux_wlan_get_num_conn_ifcs())
-				chip_sleep_manually(INFINITE_SLEEP_TIME);
+			if (!wilc_wlan_get_num_conn_ifcs(wilc))
+				wilc_chip_sleep_manually(wilc);
 
-			Handle_ScanDone(msg.drv, SCAN_EVENT_DONE);
+			Handle_ScanDone(msg.vif, SCAN_EVENT_DONE);
 
-			if (hif_drv->remain_on_ch_pending)
-				Handle_RemainOnChan(msg.drv, &msg.body.remain_on_ch);
+			if (vif->hif_drv->remain_on_ch_pending)
+				Handle_RemainOnChan(msg.vif,
+						    &msg.body.remain_on_ch);
 
 			break;
 
 		case HOST_IF_MSG_GET_RSSI:
-			Handle_GetRssi(msg.drv);
+			Handle_GetRssi(msg.vif);
 			break;
 
 		case HOST_IF_MSG_GET_LINKSPEED:
-			Handle_GetLinkspeed(msg.drv);
+			Handle_GetLinkspeed(msg.vif);
 			break;
 
 		case HOST_IF_MSG_GET_STATISTICS:
-			Handle_GetStatistics(msg.drv, (struct rf_info *)msg.body.data);
+			Handle_GetStatistics(msg.vif,
+					     (struct rf_info *)msg.body.data);
 			break;
 
 		case HOST_IF_MSG_GET_CHNL:
-			Handle_GetChnl(msg.drv);
+			Handle_GetChnl(msg.vif);
 			break;
 
 		case HOST_IF_MSG_ADD_BEACON:
-			Handle_AddBeacon(msg.drv, &msg.body.beacon_info);
+			Handle_AddBeacon(msg.vif, &msg.body.beacon_info);
 			break;
 
 		case HOST_IF_MSG_DEL_BEACON:
-			Handle_DelBeacon(msg.drv);
+			Handle_DelBeacon(msg.vif);
 			break;
 
 		case HOST_IF_MSG_ADD_STATION:
-			Handle_AddStation(msg.drv, &msg.body.add_sta_info);
+			Handle_AddStation(msg.vif, &msg.body.add_sta_info);
 			break;
 
 		case HOST_IF_MSG_DEL_STATION:
-			Handle_DelStation(msg.drv, &msg.body.del_sta_info);
+			Handle_DelStation(msg.vif, &msg.body.del_sta_info);
 			break;
 
 		case HOST_IF_MSG_EDIT_STATION:
-			Handle_EditStation(msg.drv, &msg.body.edit_sta_info);
+			Handle_EditStation(msg.vif, &msg.body.edit_sta_info);
 			break;
 
 		case HOST_IF_MSG_GET_INACTIVETIME:
-			Handle_Get_InActiveTime(msg.drv, &msg.body.mac_info);
+			Handle_Get_InActiveTime(msg.vif, &msg.body.mac_info);
 			break;
 
 		case HOST_IF_MSG_SCAN_TIMER_FIRED:
 			PRINT_D(HOSTINF_DBG, "Scan Timeout\n");
 
-			Handle_ScanDone(msg.drv, SCAN_EVENT_ABORTED);
+			Handle_ScanDone(msg.vif, SCAN_EVENT_ABORTED);
 			break;
 
 		case HOST_IF_MSG_CONNECT_TIMER_FIRED:
 			PRINT_D(HOSTINF_DBG, "Connect Timeout\n");
-			Handle_ConnectTimeout(msg.drv);
+			Handle_ConnectTimeout(msg.vif);
 			break;
 
 		case HOST_IF_MSG_POWER_MGMT:
-			Handle_PowerManagement(msg.drv, &msg.body.pwr_mgmt_info);
+			Handle_PowerManagement(msg.vif,
+					       &msg.body.pwr_mgmt_info);
 			break;
 
 		case HOST_IF_MSG_SET_WFIDRV_HANDLER:
-			Handle_SetWfiDrvHandler(msg.drv,
-						&msg.body.drv);
+			handle_set_wfi_drv_handler(msg.vif, &msg.body.drv);
 			break;
 
 		case HOST_IF_MSG_SET_OPERATION_MODE:
-			Handle_SetOperationMode(msg.drv, &msg.body.mode);
+			handle_set_operation_mode(msg.vif, &msg.body.mode);
 			break;
 
 		case HOST_IF_MSG_SET_IPADDRESS:
 			PRINT_D(HOSTINF_DBG, "HOST_IF_MSG_SET_IPADDRESS\n");
-			Handle_set_IPAddress(msg.drv, msg.body.ip_info.ip_addr, msg.body.ip_info.idx);
+			handle_set_ip_address(vif,
+					      msg.body.ip_info.ip_addr,
+					      msg.body.ip_info.idx);
 			break;
 
 		case HOST_IF_MSG_GET_IPADDRESS:
 			PRINT_D(HOSTINF_DBG, "HOST_IF_MSG_SET_IPADDRESS\n");
-			Handle_get_IPAddress(msg.drv, msg.body.ip_info.ip_addr, msg.body.ip_info.idx);
+			handle_get_ip_address(vif, msg.body.ip_info.idx);
 			break;
 
 		case HOST_IF_MSG_SET_MAC_ADDRESS:
-			Handle_SetMacAddress(msg.drv, &msg.body.set_mac_info);
+			handle_set_mac_address(msg.vif,
+					       &msg.body.set_mac_info);
 			break;
 
 		case HOST_IF_MSG_GET_MAC_ADDRESS:
-			Handle_GetMacAddress(msg.drv, &msg.body.get_mac_info);
+			handle_get_mac_address(msg.vif,
+					       &msg.body.get_mac_info);
 			break;
 
 		case HOST_IF_MSG_REMAIN_ON_CHAN:
 			PRINT_D(HOSTINF_DBG, "HOST_IF_MSG_REMAIN_ON_CHAN\n");
-			Handle_RemainOnChan(msg.drv, &msg.body.remain_on_ch);
+			Handle_RemainOnChan(msg.vif, &msg.body.remain_on_ch);
 			break;
 
 		case HOST_IF_MSG_REGISTER_FRAME:
 			PRINT_D(HOSTINF_DBG, "HOST_IF_MSG_REGISTER_FRAME\n");
-			Handle_RegisterFrame(msg.drv, &msg.body.reg_frame);
+			Handle_RegisterFrame(msg.vif, &msg.body.reg_frame);
 			break;
 
 		case HOST_IF_MSG_LISTEN_TIMER_FIRED:
-			Handle_ListenStateExpired(msg.drv, &msg.body.remain_on_ch);
+			Handle_ListenStateExpired(msg.vif, &msg.body.remain_on_ch);
 			break;
 
 		case HOST_IF_MSG_SET_MULTICAST_FILTER:
 			PRINT_D(HOSTINF_DBG, "HOST_IF_MSG_SET_MULTICAST_FILTER\n");
-			Handle_SetMulticastFilter(msg.drv, &msg.body.multicast_info);
-			break;
-
-		case HOST_IF_MSG_ADD_BA_SESSION:
-			Handle_AddBASession(msg.drv, &msg.body.session_info);
+			Handle_SetMulticastFilter(msg.vif, &msg.body.multicast_info);
 			break;
 
 		case HOST_IF_MSG_DEL_ALL_RX_BA_SESSIONS:
-			Handle_DelAllRxBASessions(msg.drv, &msg.body.session_info);
+			Handle_DelAllRxBASessions(msg.vif, &msg.body.session_info);
 			break;
 
 		case HOST_IF_MSG_DEL_ALL_STA:
-			Handle_DelAllSta(msg.drv, &msg.body.del_all_sta_info);
+			Handle_DelAllSta(msg.vif, &msg.body.del_all_sta_info);
 			break;
 
 		default:
@@ -3017,11 +2993,11 @@ static int hostIFthread(void *pvArg)
 
 static void TimerCB_Scan(unsigned long arg)
 {
-	void *pvArg = (void *)arg;
+	struct wilc_vif *vif = (struct wilc_vif *)arg;
 	struct host_if_msg msg;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
-	msg.drv = pvArg;
+	msg.vif = vif;
 	msg.id = HOST_IF_MSG_SCAN_TIMER_FIRED;
 
 	wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -3029,17 +3005,17 @@ static void TimerCB_Scan(unsigned long arg)
 
 static void TimerCB_Connect(unsigned long arg)
 {
-	void *pvArg = (void *)arg;
+	struct wilc_vif *vif = (struct wilc_vif *)arg;
 	struct host_if_msg msg;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
-	msg.drv = pvArg;
+	msg.vif = vif;
 	msg.id = HOST_IF_MSG_CONNECT_TIMER_FIRED;
 
 	wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 }
 
-s32 host_int_remove_key(struct host_if_drv *hif_drv, const u8 *pu8StaAddress)
+s32 wilc_remove_key(struct host_if_drv *hif_drv, const u8 *pu8StaAddress)
 {
 	struct wid wid;
 
@@ -3051,10 +3027,11 @@ s32 host_int_remove_key(struct host_if_drv *hif_drv, const u8 *pu8StaAddress)
 	return 0;
 }
 
-int host_int_remove_wep_key(struct host_if_drv *hif_drv, u8 index)
+int wilc_remove_wep_key(struct wilc_vif *vif, u8 index)
 {
 	int result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		result = -EFAULT;
@@ -3067,21 +3044,22 @@ int host_int_remove_wep_key(struct host_if_drv *hif_drv, u8 index)
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = WEP;
 	msg.body.key_info.action = REMOVEKEY;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.key_info.attr.wep.index = index;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Error in sending message queue : Request to remove WEP key\n");
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-int host_int_set_wep_default_key(struct host_if_drv *hif_drv, u8 index)
+int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index)
 {
 	int result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		result = -EFAULT;
@@ -3094,24 +3072,23 @@ int host_int_set_wep_default_key(struct host_if_drv *hif_drv, u8 index)
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = WEP;
 	msg.body.key_info.action = DEFAULTKEY;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.key_info.attr.wep.index = index;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Error in sending message queue : Default key index\n");
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-int host_int_add_wep_key_bss_sta(struct host_if_drv *hif_drv,
-				 const u8 *key,
-				 u8 len,
-				 u8 index)
+int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
+			     u8 index)
 {
 	int result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -3123,7 +3100,7 @@ int host_int_add_wep_key_bss_sta(struct host_if_drv *hif_drv,
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = WEP;
 	msg.body.key_info.action = ADDKEY;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.key_info.attr.wep.key = kmemdup(key, len, GFP_KERNEL);
 	if (!msg.body.key_info.attr.wep.key)
 		return -ENOMEM;
@@ -3134,20 +3111,17 @@ int host_int_add_wep_key_bss_sta(struct host_if_drv *hif_drv,
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Error in sending message queue :WEP Key\n");
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-int host_int_add_wep_key_bss_ap(struct host_if_drv *hif_drv,
-				const u8 *key,
-				u8 len,
-				u8 index,
-				u8 mode,
-				enum AUTHTYPE auth_type)
+int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len,
+			    u8 index, u8 mode, enum AUTHTYPE auth_type)
 {
 	int result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 	int i;
 
 	if (!hif_drv) {
@@ -3164,7 +3138,7 @@ int host_int_add_wep_key_bss_ap(struct host_if_drv *hif_drv,
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = WEP;
 	msg.body.key_info.action = ADDKEY_AP;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.key_info.attr.wep.key = kmemdup(key, len, GFP_KERNEL);
 	if (!msg.body.key_info.attr.wep.key)
 		return -ENOMEM;
@@ -3178,85 +3152,86 @@ int host_int_add_wep_key_bss_ap(struct host_if_drv *hif_drv,
 
 	if (result)
 		PRINT_ER("Error in sending message queue :WEP Key\n");
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-s32 host_int_add_ptk(struct host_if_drv *hif_drv, const u8 *pu8Ptk,
-		     u8 u8PtkKeylen, const u8 *mac_addr,
-		     const u8 *pu8RxMic, const u8 *pu8TxMic,
-		     u8 mode, u8 u8Ciphermode, u8 u8Idx)
+int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
+		 const u8 *mac_addr, const u8 *rx_mic, const u8 *tx_mic,
+		 u8 mode, u8 cipher_mode, u8 index)
 {
-	s32 result = 0;
+	int result = 0;
 	struct host_if_msg msg;
-	u8 u8KeyLen = u8PtkKeylen;
-	u32 i;
+	struct host_if_drv *hif_drv = vif->hif_drv;
+	u8 key_len = ptk_key_len;
+	int i;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
 		return -EFAULT;
 	}
 
-	if (pu8RxMic)
-		u8KeyLen += RX_MIC_KEY_LEN;
+	if (rx_mic)
+		key_len += RX_MIC_KEY_LEN;
 
-	if (pu8TxMic)
-		u8KeyLen += TX_MIC_KEY_LEN;
+	if (tx_mic)
+		key_len += TX_MIC_KEY_LEN;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_KEY;
-	msg.body.key_info.type = WPAPtk;
+	msg.body.key_info.type = WPA_PTK;
 	if (mode == AP_MODE) {
 		msg.body.key_info.action = ADDKEY_AP;
-		msg.body.key_info.attr.wpa.index = u8Idx;
+		msg.body.key_info.attr.wpa.index = index;
 	}
 	if (mode == STATION_MODE)
 		msg.body.key_info.action = ADDKEY;
 
-	msg.body.key_info.attr.wpa.key = kmalloc(u8PtkKeylen, GFP_KERNEL);
-	memcpy(msg.body.key_info.attr.wpa.key, pu8Ptk, u8PtkKeylen);
+	msg.body.key_info.attr.wpa.key = kmemdup(ptk, ptk_key_len, GFP_KERNEL);
+	if (!msg.body.key_info.attr.wpa.key)
+		return -ENOMEM;
 
-	if (pu8RxMic) {
-		memcpy(msg.body.key_info.attr.wpa.key + 16, pu8RxMic, RX_MIC_KEY_LEN);
+	if (rx_mic) {
+		memcpy(msg.body.key_info.attr.wpa.key + 16, rx_mic, RX_MIC_KEY_LEN);
 		if (INFO) {
 			for (i = 0; i < RX_MIC_KEY_LEN; i++)
-				PRINT_INFO(CFG80211_DBG, "PairwiseRx[%d] = %x\n", i, pu8RxMic[i]);
+				PRINT_INFO(CFG80211_DBG, "PairwiseRx[%d] = %x\n", i, rx_mic[i]);
 		}
 	}
-	if (pu8TxMic) {
-		memcpy(msg.body.key_info.attr.wpa.key + 24, pu8TxMic, TX_MIC_KEY_LEN);
+	if (tx_mic) {
+		memcpy(msg.body.key_info.attr.wpa.key + 24, tx_mic, TX_MIC_KEY_LEN);
 		if (INFO) {
 			for (i = 0; i < TX_MIC_KEY_LEN; i++)
-				PRINT_INFO(CFG80211_DBG, "PairwiseTx[%d] = %x\n", i, pu8TxMic[i]);
+				PRINT_INFO(CFG80211_DBG, "PairwiseTx[%d] = %x\n", i, tx_mic[i]);
 		}
 	}
 
-	msg.body.key_info.attr.wpa.key_len = u8KeyLen;
+	msg.body.key_info.attr.wpa.key_len = key_len;
 	msg.body.key_info.attr.wpa.mac_addr = mac_addr;
-	msg.body.key_info.attr.wpa.mode = u8Ciphermode;
-	msg.drv = hif_drv;
+	msg.body.key_info.attr.wpa.mode = cipher_mode;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 
 	if (result)
 		PRINT_ER("Error in sending message queue:  PTK Key\n");
 
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-s32 host_int_add_rx_gtk(struct host_if_drv *hif_drv, const u8 *pu8RxGtk,
-			u8 u8GtkKeylen,	u8 u8KeyIdx,
-			u32 u32KeyRSClen, const u8 *KeyRSC,
-			const u8 *pu8RxMic, const u8 *pu8TxMic,
-			u8 mode, u8 u8Ciphermode)
+int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
+		    u8 index, u32 key_rsc_len, const u8 *key_rsc,
+		    const u8 *rx_mic, const u8 *tx_mic, u8 mode,
+		    u8 cipher_mode)
 {
-	s32 result = 0;
+	int result = 0;
 	struct host_if_msg msg;
-	u8 u8KeyLen = u8GtkKeylen;
+	struct host_if_drv *hif_drv = vif->hif_drv;
+	u8 key_len = gtk_key_len;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -3264,56 +3239,64 @@ s32 host_int_add_rx_gtk(struct host_if_drv *hif_drv, const u8 *pu8RxGtk,
 	}
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
-	if (pu8RxMic)
-		u8KeyLen += RX_MIC_KEY_LEN;
+	if (rx_mic)
+		key_len += RX_MIC_KEY_LEN;
 
-	if (pu8TxMic)
-		u8KeyLen += TX_MIC_KEY_LEN;
+	if (tx_mic)
+		key_len += TX_MIC_KEY_LEN;
 
-	if (KeyRSC) {
-		msg.body.key_info.attr.wpa.seq = kmalloc(u32KeyRSClen, GFP_KERNEL);
-		memcpy(msg.body.key_info.attr.wpa.seq, KeyRSC, u32KeyRSClen);
+	if (key_rsc) {
+		msg.body.key_info.attr.wpa.seq = kmemdup(key_rsc,
+							 key_rsc_len,
+							 GFP_KERNEL);
+		if (!msg.body.key_info.attr.wpa.seq)
+			return -ENOMEM;
 	}
 
 	msg.id = HOST_IF_MSG_KEY;
-	msg.body.key_info.type = WPARxGtk;
-	msg.drv = hif_drv;
+	msg.body.key_info.type = WPA_RX_GTK;
+	msg.vif = vif;
 
 	if (mode == AP_MODE) {
 		msg.body.key_info.action = ADDKEY_AP;
-		msg.body.key_info.attr.wpa.mode = u8Ciphermode;
+		msg.body.key_info.attr.wpa.mode = cipher_mode;
 	}
 	if (mode == STATION_MODE)
 		msg.body.key_info.action = ADDKEY;
 
-	msg.body.key_info.attr.wpa.key = kmalloc(u8KeyLen, GFP_KERNEL);
-	memcpy(msg.body.key_info.attr.wpa.key, pu8RxGtk, u8GtkKeylen);
+	msg.body.key_info.attr.wpa.key = kmemdup(rx_gtk,
+						 key_len,
+						 GFP_KERNEL);
+	if (!msg.body.key_info.attr.wpa.key)
+		return -ENOMEM;
 
-	if (pu8RxMic)
-		memcpy(msg.body.key_info.attr.wpa.key + 16, pu8RxMic,
+	if (rx_mic)
+		memcpy(msg.body.key_info.attr.wpa.key + 16, rx_mic,
 		       RX_MIC_KEY_LEN);
 
-	if (pu8TxMic)
-		memcpy(msg.body.key_info.attr.wpa.key + 24, pu8TxMic,
+	if (tx_mic)
+		memcpy(msg.body.key_info.attr.wpa.key + 24, tx_mic,
 		       TX_MIC_KEY_LEN);
 
-	msg.body.key_info.attr.wpa.index = u8KeyIdx;
-	msg.body.key_info.attr.wpa.key_len = u8KeyLen;
-	msg.body.key_info.attr.wpa.seq_len = u32KeyRSClen;
+	msg.body.key_info.attr.wpa.index = index;
+	msg.body.key_info.attr.wpa.key_len = key_len;
+	msg.body.key_info.attr.wpa.seq_len = key_rsc_len;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Error in sending message queue:  RX GTK\n");
 
-	down(&hif_drv->hSemTestKeyBlock);
+	down(&hif_drv->sem_test_key_block);
 
 	return result;
 }
 
-s32 host_int_set_pmkid_info(struct host_if_drv *hif_drv, struct host_if_pmkid_attr *pu8PmkidInfoArray)
+s32 wilc_set_pmkid_info(struct wilc_vif *vif,
+			struct host_if_pmkid_attr *pu8PmkidInfoArray)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 	u32 i;
 
 	if (!hif_drv) {
@@ -3326,7 +3309,7 @@ s32 host_int_set_pmkid_info(struct host_if_drv *hif_drv, struct host_if_pmkid_at
 	msg.id = HOST_IF_MSG_KEY;
 	msg.body.key_info.type = PMKSA;
 	msg.body.key_info.action = ADDKEY;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	for (i = 0; i < pu8PmkidInfoArray->numpmkid; i++) {
 		memcpy(msg.body.key_info.attr.pmkid.pmkidlist[i].bssid,
@@ -3342,37 +3325,7 @@ s32 host_int_set_pmkid_info(struct host_if_drv *hif_drv, struct host_if_pmkid_at
 	return result;
 }
 
-s32 host_int_get_pmkid_info(struct host_if_drv *hif_drv,
-			    u8 *pu8PmkidInfoArray,
-			    u32 u32PmkidInfoLen)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_PMKID_INFO;
-	wid.type = WID_STR;
-	wid.size = u32PmkidInfoLen;
-	wid.val = pu8PmkidInfoArray;
-
-	return 0;
-}
-
-s32 host_int_set_RSNAConfigPSKPassPhrase(struct host_if_drv *hif_drv,
-					 u8 *pu8PassPhrase,
-					 u8 u8Psklength)
-{
-	struct wid wid;
-
-	if ((u8Psklength > 7) && (u8Psklength < 65)) {
-		wid.id = (u16)WID_11I_PSK;
-		wid.type = WID_STR;
-		wid.val = pu8PassPhrase;
-		wid.size = u8Psklength;
-	}
-
-	return 0;
-}
-
-s32 host_int_get_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
+s32 wilc_get_mac_address(struct wilc_vif *vif, u8 *pu8MacAddress)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
@@ -3381,7 +3334,7 @@ s32 host_int_get_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
 
 	msg.id = HOST_IF_MSG_GET_MAC_ADDRESS;
 	msg.body.get_mac_info.mac_addr = pu8MacAddress;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3393,7 +3346,7 @@ s32 host_int_get_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
 	return result;
 }
 
-s32 host_int_set_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
+s32 wilc_set_mac_address(struct wilc_vif *vif, u8 *pu8MacAddress)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
@@ -3403,7 +3356,7 @@ s32 host_int_set_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_SET_MAC_ADDRESS;
 	memcpy(msg.body.set_mac_info.mac_addr, pu8MacAddress, ETH_ALEN);
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -3412,52 +3365,15 @@ s32 host_int_set_MacAddress(struct host_if_drv *hif_drv, u8 *pu8MacAddress)
 	return result;
 }
 
-s32 host_int_get_RSNAConfigPSKPassPhrase(struct host_if_drv *hif_drv,
-					 u8 *pu8PassPhrase, u8 u8Psklength)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_11I_PSK;
-	wid.type = WID_STR;
-	wid.size = u8Psklength;
-	wid.val = pu8PassPhrase;
-
-	return 0;
-}
-
-s32 host_int_set_start_scan_req(struct host_if_drv *hif_drv, u8 scanSource)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_START_SCAN_REQ;
-	wid.type = WID_CHAR;
-	wid.val = (s8 *)&scanSource;
-	wid.size = sizeof(char);
-
-	return 0;
-}
-
-s32 host_int_get_start_scan_req(struct host_if_drv *hif_drv, u8 *pu8ScanSource)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_START_SCAN_REQ;
-	wid.type = WID_CHAR;
-	wid.val = (s8 *)pu8ScanSource;
-	wid.size = sizeof(char);
-
-	return 0;
-}
-
-s32 host_int_set_join_req(struct host_if_drv *hif_drv, u8 *pu8bssid,
-			  const u8 *pu8ssid, size_t ssidLen,
-			  const u8 *pu8IEs, size_t IEsLen,
-			  wilc_connect_result pfConnectResult, void *pvUserArg,
-			  u8 u8security, enum AUTHTYPE tenuAuth_type,
-			  u8 u8channel, void *pJoinParams)
+s32 wilc_set_join_req(struct wilc_vif *vif, u8 *pu8bssid, const u8 *pu8ssid,
+		      size_t ssidLen, const u8 *pu8IEs, size_t IEsLen,
+		      wilc_connect_result pfConnectResult, void *pvUserArg,
+		      u8 u8security, enum AUTHTYPE tenuAuth_type,
+		      u8 u8channel, void *pJoinParams)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv || !pfConnectResult) {
 		PRINT_ER("Driver is null\n");
@@ -3479,7 +3395,7 @@ s32 host_int_set_join_req(struct host_if_drv *hif_drv, u8 *pu8bssid,
 	msg.body.con_info.result = pfConnectResult;
 	msg.body.con_info.arg = pvUserArg;
 	msg.body.con_info.params = pJoinParams;
-	msg.drv = hif_drv ;
+	msg.vif = vif;
 
 	if (pu8bssid) {
 		msg.body.con_info.bssid = kmalloc(6, GFP_KERNEL);
@@ -3497,10 +3413,11 @@ s32 host_int_set_join_req(struct host_if_drv *hif_drv, u8 *pu8bssid,
 		msg.body.con_info.ies = kmalloc(IEsLen, GFP_KERNEL);
 		memcpy(msg.body.con_info.ies, pu8IEs, IEsLen);
 	}
-	if (hif_drv->enuHostIFstate < HOST_IF_CONNECTING)
-		hif_drv->enuHostIFstate = HOST_IF_CONNECTING;
+	if (hif_drv->hif_state < HOST_IF_CONNECTING)
+		hif_drv->hif_state = HOST_IF_CONNECTING;
 	else
-		PRINT_D(GENERIC_DBG, "Don't set state to 'connecting' as state is %d\n", hif_drv->enuHostIFstate);
+		PRINT_D(GENERIC_DBG, "Don't set state to 'connecting' : %d\n",
+			hif_drv->hif_state);
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3508,17 +3425,18 @@ s32 host_int_set_join_req(struct host_if_drv *hif_drv, u8 *pu8bssid,
 		return -EFAULT;
 	}
 
-	hif_drv->hConnectTimer.data = (unsigned long)hif_drv;
-	mod_timer(&hif_drv->hConnectTimer,
+	hif_drv->connect_timer.data = (unsigned long)vif;
+	mod_timer(&hif_drv->connect_timer,
 		  jiffies + msecs_to_jiffies(HOST_IF_CONNECT_TIMEOUT));
 
 	return result;
 }
 
-s32 host_int_flush_join_req(struct host_if_drv *hif_drv)
+s32 wilc_flush_join_req(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!join_req)
 		return -EFAULT;
@@ -3529,7 +3447,7 @@ s32 host_int_flush_join_req(struct host_if_drv *hif_drv)
 	}
 
 	msg.id = HOST_IF_MSG_FLUSH_CONNECT;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3540,10 +3458,11 @@ s32 host_int_flush_join_req(struct host_if_drv *hif_drv)
 	return result;
 }
 
-s32 host_int_disconnect(struct host_if_drv *hif_drv, u16 u16ReasonCode)
+s32 wilc_disconnect(struct wilc_vif *vif, u16 u16ReasonCode)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("Driver is null\n");
@@ -3553,50 +3472,25 @@ s32 host_int_disconnect(struct host_if_drv *hif_drv, u16 u16ReasonCode)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_DISCONNECT;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Failed to send message queue: disconnect\n");
 
-	down(&hif_drv->hSemTestDisconnectBlock);
+	down(&hif_drv->sem_test_disconn_block);
 
 	return result;
 }
 
-s32 host_int_disconnect_station(struct host_if_drv *hif_drv, u8 assoc_id)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_DISCONNECT;
-	wid.type = WID_CHAR;
-	wid.val = (s8 *)&assoc_id;
-	wid.size = sizeof(char);
-
-	return 0;
-}
-
-s32 host_int_get_assoc_req_info(struct host_if_drv *hif_drv,
-				u8 *pu8AssocReqInfo,
-				u32 u32AssocReqInfoLen)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_ASSOC_REQ_INFO;
-	wid.type = WID_STR;
-	wid.val = pu8AssocReqInfo;
-	wid.size = u32AssocReqInfoLen;
-
-	return 0;
-}
-
-s32 host_int_get_assoc_res_info(struct host_if_drv *hif_drv,
-				u8 *pu8AssocRespInfo,
-				u32 u32MaxAssocRespInfoLen,
-				u32 *pu32RcvdAssocRespInfoLen)
+static s32 host_int_get_assoc_res_info(struct wilc_vif *vif,
+				       u8 *pu8AssocRespInfo,
+				       u32 u32MaxAssocRespInfoLen,
+				       u32 *pu32RcvdAssocRespInfoLen)
 {
 	s32 result = 0;
 	struct wid wid;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("Driver is null\n");
@@ -3608,8 +3502,8 @@ s32 host_int_get_assoc_res_info(struct host_if_drv *hif_drv,
 	wid.val = pu8AssocRespInfo;
 	wid.size = u32MaxAssocRespInfoLen;
 
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
+	result = wilc_send_config_pkt(vif->wilc, GET_CFG, &wid, 1,
+				 wilc_get_vif_idx(vif));
 	if (result) {
 		*pu32RcvdAssocRespInfoLen = 0;
 		PRINT_ER("Failed to send association response config packet\n");
@@ -3621,24 +3515,11 @@ s32 host_int_get_assoc_res_info(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_get_rx_power_level(struct host_if_drv *hif_drv,
-				u8 *pu8RxPowerLevel,
-				u32 u32RxPowerLevelLen)
-{
-	struct wid wid;
-
-	wid.id = (u16)WID_RX_POWER_LEVEL;
-	wid.type = WID_STR;
-	wid.val = pu8RxPowerLevel;
-	wid.size = u32RxPowerLevelLen;
-
-	return 0;
-}
-
-int host_int_set_mac_chnl_num(struct host_if_drv *hif_drv, u8 channel)
+int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel)
 {
 	int result;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -3648,7 +3529,7 @@ int host_int_set_mac_chnl_num(struct host_if_drv *hif_drv, u8 channel)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_SET_CHANNEL;
 	msg.body.channel_info.set_ch = channel;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3659,7 +3540,7 @@ int host_int_set_mac_chnl_num(struct host_if_drv *hif_drv, u8 channel)
 	return 0;
 }
 
-int host_int_wait_msg_queue_idle(void)
+int wilc_wait_msg_queue_idle(void)
 {
 	int result = 0;
 	struct host_if_msg msg;
@@ -3677,15 +3558,15 @@ int host_int_wait_msg_queue_idle(void)
 	return result;
 }
 
-int host_int_set_wfi_drv_handler(struct host_if_drv *hif_drv)
+int wilc_set_wfi_drv_handler(struct wilc_vif *vif, int index)
 {
 	int result = 0;
 	struct host_if_msg msg;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_SET_WFIDRV_HANDLER;
-	msg.body.drv.handler = get_id_from_handler(hif_drv);
-	msg.drv = hif_drv;
+	msg.body.drv.handler = index;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3696,7 +3577,7 @@ int host_int_set_wfi_drv_handler(struct host_if_drv *hif_drv)
 	return result;
 }
 
-int host_int_set_operation_mode(struct host_if_drv *hif_drv, u32 mode)
+int wilc_set_operation_mode(struct wilc_vif *vif, u32 mode)
 {
 	int result = 0;
 	struct host_if_msg msg;
@@ -3704,7 +3585,7 @@ int host_int_set_operation_mode(struct host_if_drv *hif_drv, u32 mode)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_SET_OPERATION_MODE;
 	msg.body.mode.mode = mode;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3715,36 +3596,12 @@ int host_int_set_operation_mode(struct host_if_drv *hif_drv, u32 mode)
 	return result;
 }
 
-s32 host_int_get_host_chnl_num(struct host_if_drv *hif_drv, u8 *pu8ChNo)
-{
-	s32 result = 0;
-	struct host_if_msg msg;
-
-	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
-		return -EFAULT;
-	}
-
-	memset(&msg, 0, sizeof(struct host_if_msg));
-
-	msg.id = HOST_IF_MSG_GET_CHNL;
-	msg.drv = hif_drv;
-
-	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
-	if (result)
-		PRINT_ER("wilc mq send fail\n");
-	down(&hif_drv->hSemGetCHNL);
-
-	*pu8ChNo = ch_no;
-
-	return result;
-}
-
-s32 host_int_get_inactive_time(struct host_if_drv *hif_drv,
-			       const u8 *mac, u32 *pu32InactiveTime)
+s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac,
+			   u32 *pu32InactiveTime)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -3755,55 +3612,28 @@ s32 host_int_get_inactive_time(struct host_if_drv *hif_drv,
 	memcpy(msg.body.mac_info.mac, mac, ETH_ALEN);
 
 	msg.id = HOST_IF_MSG_GET_INACTIVETIME;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
 		PRINT_ER("Failed to send get host channel param's message queue ");
 
-	down(&hif_drv->hSemInactiveTime);
+	down(&hif_drv->sem_inactive_time);
 
 	*pu32InactiveTime = inactive_time;
 
 	return result;
 }
 
-s32 host_int_test_get_int_wid(struct host_if_drv *hif_drv, u32 *pu32TestMemAddr)
-{
-	s32 result = 0;
-	struct wid wid;
-
-	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
-		return -EFAULT;
-	}
-
-	wid.id = (u16)WID_MEMORY_ADDRESS;
-	wid.type = WID_INT;
-	wid.val = (s8 *)pu32TestMemAddr;
-	wid.size = sizeof(u32);
-
-	result = send_config_pkt(GET_CFG, &wid, 1,
-				 get_id_from_handler(hif_drv));
-
-	if (result) {
-		PRINT_ER("Failed to get wid value\n");
-		return -EINVAL;
-	} else {
-		PRINT_D(HOSTINF_DBG, "Successfully got wid value\n");
-	}
-
-	return result;
-}
-
-s32 host_int_get_rssi(struct host_if_drv *hif_drv, s8 *ps8Rssi)
+s32 wilc_get_rssi(struct wilc_vif *vif, s8 *ps8Rssi)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_GET_RSSI;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3811,7 +3641,7 @@ s32 host_int_get_rssi(struct host_if_drv *hif_drv, s8 *ps8Rssi)
 		return -EFAULT;
 	}
 
-	down(&hif_drv->hSemGetRSSI);
+	down(&hif_drv->sem_get_rssi);
 
 	if (!ps8Rssi) {
 		PRINT_ER("RSS pointer value is null");
@@ -3823,34 +3653,7 @@ s32 host_int_get_rssi(struct host_if_drv *hif_drv, s8 *ps8Rssi)
 	return result;
 }
 
-s32 host_int_get_link_speed(struct host_if_drv *hif_drv, s8 *ps8lnkspd)
-{
-	struct host_if_msg msg;
-	s32 result = 0;
-
-	memset(&msg, 0, sizeof(struct host_if_msg));
-	msg.id = HOST_IF_MSG_GET_LINKSPEED;
-	msg.drv = hif_drv;
-
-	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
-	if (result) {
-		PRINT_ER("Failed to send GET_LINKSPEED to message queue ");
-		return -EFAULT;
-	}
-
-	down(&hif_drv->hSemGetLINKSPEED);
-
-	if (!ps8lnkspd) {
-		PRINT_ER("LINKSPEED pointer value is null");
-		return -EFAULT;
-	}
-
-	*ps8lnkspd = link_speed;
-
-	return result;
-}
-
-s32 host_int_get_statistics(struct host_if_drv *hif_drv, struct rf_info *pstrStatistics)
+s32 wilc_get_statistics(struct wilc_vif *vif, struct rf_info *pstrStatistics)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
@@ -3858,7 +3661,7 @@ s32 host_int_get_statistics(struct host_if_drv *hif_drv, struct rf_info *pstrSta
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_GET_STATISTICS;
 	msg.body.data = (char *)pstrStatistics;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result) {
@@ -3870,14 +3673,14 @@ s32 host_int_get_statistics(struct host_if_drv *hif_drv, struct rf_info *pstrSta
 	return result;
 }
 
-s32 host_int_scan(struct host_if_drv *hif_drv, u8 u8ScanSource,
-		  u8 u8ScanType, u8 *pu8ChnlFreqList,
-		  u8 u8ChnlListLen, const u8 *pu8IEs,
-		  size_t IEsLen, wilc_scan_result ScanResult,
-		  void *pvUserArg, struct hidden_network *pstrHiddenNetwork)
+s32 wilc_scan(struct wilc_vif *vif, u8 u8ScanSource, u8 u8ScanType,
+	      u8 *pu8ChnlFreqList, u8 u8ChnlListLen, const u8 *pu8IEs,
+	      size_t IEsLen, wilc_scan_result ScanResult, void *pvUserArg,
+	      struct hidden_network *pstrHiddenNetwork)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv || !ScanResult) {
 		PRINT_ER("hif_drv or ScanResult = NULL\n");
@@ -3895,7 +3698,7 @@ s32 host_int_scan(struct host_if_drv *hif_drv, u8 u8ScanSource,
 	} else
 		PRINT_D(HOSTINF_DBG, "pstrHiddenNetwork IS EQUAL TO NULL\n");
 
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.scan_info.src = u8ScanSource;
 	msg.body.scan_info.type = u8ScanType;
 	msg.body.scan_info.result = ScanResult;
@@ -3916,18 +3719,19 @@ s32 host_int_scan(struct host_if_drv *hif_drv, u8 u8ScanSource,
 	}
 
 	PRINT_D(HOSTINF_DBG, ">> Starting the SCAN timer\n");
-	hif_drv->hScanTimer.data = (unsigned long)hif_drv;
-	mod_timer(&hif_drv->hScanTimer,
+	hif_drv->scan_timer.data = (unsigned long)vif;
+	mod_timer(&hif_drv->scan_timer,
 		  jiffies + msecs_to_jiffies(HOST_IF_SCAN_TIMEOUT));
 
 	return result;
 }
 
-s32 hif_set_cfg(struct host_if_drv *hif_drv,
-		struct cfg_param_val *pstrCfgParamVal)
+s32 wilc_hif_set_cfg(struct wilc_vif *vif,
+		     struct cfg_param_val *pstrCfgParamVal)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("hif_drv NULL\n");
@@ -3937,123 +3741,30 @@ s32 hif_set_cfg(struct host_if_drv *hif_drv,
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_CFG_PARAMS;
 	msg.body.cfg_info.cfg_attr_info = *pstrCfgParamVal;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 
 	return result;
 }
 
-s32 hif_get_cfg(struct host_if_drv *hif_drv, u16 u16WID, u16 *pu16WID_Value)
-{
-	s32 result = 0;
-
-	down(&hif_drv->gtOsCfgValuesSem);
-
-	if (!hif_drv) {
-		PRINT_ER("hif_drv NULL\n");
-		return -EFAULT;
-	}
-	PRINT_D(HOSTINF_DBG, "Getting configuration parameters\n");
-	switch (u16WID)	{
-	case WID_BSS_TYPE:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.bss_type;
-		break;
-
-	case WID_AUTH_TYPE:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.auth_type;
-		break;
-
-	case WID_AUTH_TIMEOUT:
-		*pu16WID_Value = hif_drv->strCfgValues.auth_timeout;
-		break;
-
-	case WID_POWER_MANAGEMENT:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.power_mgmt_mode;
-		break;
-
-	case WID_SHORT_RETRY_LIMIT:
-		*pu16WID_Value =       hif_drv->strCfgValues.short_retry_limit;
-		break;
-
-	case WID_LONG_RETRY_LIMIT:
-		*pu16WID_Value = hif_drv->strCfgValues.long_retry_limit;
-		break;
-
-	case WID_FRAG_THRESHOLD:
-		*pu16WID_Value = hif_drv->strCfgValues.frag_threshold;
-		break;
-
-	case WID_RTS_THRESHOLD:
-		*pu16WID_Value = hif_drv->strCfgValues.rts_threshold;
-		break;
-
-	case WID_PREAMBLE:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.preamble_type;
-		break;
-
-	case WID_SHORT_SLOT_ALLOWED:
-		*pu16WID_Value = (u16) hif_drv->strCfgValues.short_slot_allowed;
-		break;
-
-	case WID_11N_TXOP_PROT_DISABLE:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.txop_prot_disabled;
-		break;
-
-	case WID_BEACON_INTERVAL:
-		*pu16WID_Value = hif_drv->strCfgValues.beacon_interval;
-		break;
-
-	case WID_DTIM_PERIOD:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.dtim_period;
-		break;
-
-	case WID_SITE_SURVEY:
-		*pu16WID_Value = (u16)hif_drv->strCfgValues.site_survey_enabled;
-		break;
-
-	case WID_SITE_SURVEY_SCAN_TIME:
-		*pu16WID_Value = hif_drv->strCfgValues.site_survey_scan_time;
-		break;
-
-	case WID_ACTIVE_SCAN_TIME:
-		*pu16WID_Value = hif_drv->strCfgValues.active_scan_time;
-		break;
-
-	case WID_PASSIVE_SCAN_TIME:
-		*pu16WID_Value = hif_drv->strCfgValues.passive_scan_time;
-		break;
-
-	case WID_CURRENT_TX_RATE:
-		*pu16WID_Value = hif_drv->strCfgValues.curr_tx_rate;
-		break;
-
-	default:
-		break;
-	}
-
-	up(&hif_drv->gtOsCfgValuesSem);
-
-	return result;
-}
-
 static void GetPeriodicRSSI(unsigned long arg)
 {
-	struct host_if_drv *hif_drv = (struct host_if_drv *)arg;
+	struct wilc_vif *vif = (struct wilc_vif *)arg;
 
-	if (!hif_drv)	{
+	if (!vif->hif_drv) {
 		PRINT_ER("Driver handler is NULL\n");
 		return;
 	}
 
-	if (hif_drv->enuHostIFstate == HOST_IF_CONNECTED) {
+	if (vif->hif_drv->hif_state == HOST_IF_CONNECTED) {
 		s32 result = 0;
 		struct host_if_msg msg;
 
 		memset(&msg, 0, sizeof(struct host_if_msg));
 
 		msg.id = HOST_IF_MSG_GET_RSSI;
-		msg.drv = hif_drv;
+		msg.vif = vif;
 
 		result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 		if (result) {
@@ -4061,20 +3772,20 @@ static void GetPeriodicRSSI(unsigned long arg)
 			return;
 		}
 	}
-	periodic_rssi.data = (unsigned long)hif_drv;
+	periodic_rssi.data = (unsigned long)vif;
 	mod_timer(&periodic_rssi, jiffies + msecs_to_jiffies(5000));
 }
 
-s32 host_int_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
+s32 wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 {
 	s32 result = 0;
 	struct host_if_drv *hif_drv;
-	int err;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
+	int i;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
 	PRINT_D(HOSTINF_DBG, "Initializing host interface for client %d\n", clients_count + 1);
 
@@ -4088,13 +3799,13 @@ s32 host_int_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 		goto _fail_;
 	}
 	*hif_drv_handler = hif_drv;
-	err = add_handler_in_list(hif_drv);
-	if (err) {
-		result = -EFAULT;
-		goto _fail_timer_2;
-	}
+	for (i = 0; i < wilc->vif_num; i++)
+		if (dev == wilc->vif[i]->ndev) {
+			wilc->vif[i]->hif_drv = hif_drv;
+			break;
+		}
 
-	g_obtainingIP = false;
+	wilc_optaining_ip = false;
 
 	PRINT_D(HOSTINF_DBG, "Global handle pointer value=%p\n", hif_drv);
 	if (clients_count == 0)	{
@@ -4103,12 +3814,12 @@ s32 host_int_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 		sema_init(&hif_sema_deinit, 1);
 	}
 
-	sema_init(&hif_drv->hSemTestKeyBlock, 0);
-	sema_init(&hif_drv->hSemTestDisconnectBlock, 0);
-	sema_init(&hif_drv->hSemGetRSSI, 0);
-	sema_init(&hif_drv->hSemGetLINKSPEED, 0);
-	sema_init(&hif_drv->hSemGetCHNL, 0);
-	sema_init(&hif_drv->hSemInactiveTime, 0);
+	sema_init(&hif_drv->sem_test_key_block, 0);
+	sema_init(&hif_drv->sem_test_disconn_block, 0);
+	sema_init(&hif_drv->sem_get_rssi, 0);
+	sema_init(&hif_drv->sem_get_link_speed, 0);
+	sema_init(&hif_drv->sem_get_chnl, 0);
+	sema_init(&hif_drv->sem_inactive_time, 0);
 
 	PRINT_D(HOSTINF_DBG, "INIT: CLIENT COUNT %d\n", clients_count);
 
@@ -4129,56 +3840,50 @@ s32 host_int_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 			goto _fail_mq_;
 		}
 		setup_timer(&periodic_rssi, GetPeriodicRSSI,
-			    (unsigned long)hif_drv);
+			    (unsigned long)vif);
 		mod_timer(&periodic_rssi, jiffies + msecs_to_jiffies(5000));
 	}
 
-	setup_timer(&hif_drv->hScanTimer, TimerCB_Scan, 0);
-
-	setup_timer(&hif_drv->hConnectTimer, TimerCB_Connect, 0);
+	setup_timer(&hif_drv->scan_timer, TimerCB_Scan, 0);
+	setup_timer(&hif_drv->connect_timer, TimerCB_Connect, 0);
+	setup_timer(&hif_drv->remain_on_ch_timer, ListenTimerCB, 0);
 
-	setup_timer(&hif_drv->hRemainOnChannel, ListenTimerCB, 0);
+	sema_init(&hif_drv->sem_cfg_values, 1);
+	down(&hif_drv->sem_cfg_values);
 
-	sema_init(&hif_drv->gtOsCfgValuesSem, 1);
-	down(&hif_drv->gtOsCfgValuesSem);
+	hif_drv->hif_state = HOST_IF_IDLE;
+	hif_drv->cfg_values.site_survey_enabled = SITE_SURVEY_OFF;
+	hif_drv->cfg_values.scan_source = DEFAULT_SCAN;
+	hif_drv->cfg_values.active_scan_time = ACTIVE_SCAN_TIME;
+	hif_drv->cfg_values.passive_scan_time = PASSIVE_SCAN_TIME;
+	hif_drv->cfg_values.curr_tx_rate = AUTORATE;
 
-	hif_drv->enuHostIFstate = HOST_IF_IDLE;
-	hif_drv->strCfgValues.site_survey_enabled = SITE_SURVEY_OFF;
-	hif_drv->strCfgValues.scan_source = DEFAULT_SCAN;
-	hif_drv->strCfgValues.active_scan_time = ACTIVE_SCAN_TIME;
-	hif_drv->strCfgValues.passive_scan_time = PASSIVE_SCAN_TIME;
-	hif_drv->strCfgValues.curr_tx_rate = AUTORATE;
-
-	hif_drv->u64P2p_MgmtTimeout = 0;
+	hif_drv->p2p_timeout = 0;
 
 	PRINT_INFO(HOSTINF_DBG, "Initialization values, Site survey value: %d\n Scan source: %d\n Active scan time: %d\n Passive scan time: %d\nCurrent tx Rate = %d\n",
+		   hif_drv->cfg_values.site_survey_enabled,
+		   hif_drv->cfg_values.scan_source,
+		   hif_drv->cfg_values.active_scan_time,
+		   hif_drv->cfg_values.passive_scan_time,
+		   hif_drv->cfg_values.curr_tx_rate);
 
-		   hif_drv->strCfgValues.site_survey_enabled, hif_drv->strCfgValues.scan_source,
-		   hif_drv->strCfgValues.active_scan_time, hif_drv->strCfgValues.passive_scan_time,
-		   hif_drv->strCfgValues.curr_tx_rate);
-
-	up(&hif_drv->gtOsCfgValuesSem);
+	up(&hif_drv->sem_cfg_values);
 
 	clients_count++;
 
 	return result;
 
-_fail_timer_2:
-	up(&hif_drv->gtOsCfgValuesSem);
-	del_timer_sync(&hif_drv->hConnectTimer);
-	del_timer_sync(&hif_drv->hScanTimer);
-	kthread_stop(hif_thread_handler);
 _fail_mq_:
 	wilc_mq_destroy(&hif_msg_q);
 _fail_:
 	return result;
 }
 
-s32 host_int_deinit(struct host_if_drv *hif_drv)
+s32 wilc_deinit(struct wilc_vif *vif)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
-	int ret;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv)	{
 		PRINT_ER("hif_drv = NULL\n");
@@ -4190,28 +3895,27 @@ s32 host_int_deinit(struct host_if_drv *hif_drv)
 	terminated_handle = hif_drv;
 	PRINT_D(HOSTINF_DBG, "De-initializing host interface for client %d\n", clients_count);
 
-	if (del_timer_sync(&hif_drv->hScanTimer))
+	if (del_timer_sync(&hif_drv->scan_timer))
 		PRINT_D(HOSTINF_DBG, ">> Scan timer is active\n");
 
-	if (del_timer_sync(&hif_drv->hConnectTimer))
+	if (del_timer_sync(&hif_drv->connect_timer))
 		PRINT_D(HOSTINF_DBG, ">> Connect timer is active\n");
 
 	if (del_timer_sync(&periodic_rssi))
 		PRINT_D(HOSTINF_DBG, ">> Connect timer is active\n");
 
-	del_timer_sync(&hif_drv->hRemainOnChannel);
+	del_timer_sync(&hif_drv->remain_on_ch_timer);
 
-	host_int_set_wfi_drv_handler(NULL);
+	wilc_set_wfi_drv_handler(vif, 0);
 	down(&hif_sema_driver);
 
-	if (hif_drv->usr_scan_req.pfUserScanResult) {
-		hif_drv->usr_scan_req.pfUserScanResult(SCAN_EVENT_ABORTED, NULL,
-						       hif_drv->usr_scan_req.u32UserScanPvoid, NULL);
-
-		hif_drv->usr_scan_req.pfUserScanResult = NULL;
+	if (hif_drv->usr_scan_req.scan_result) {
+		hif_drv->usr_scan_req.scan_result(SCAN_EVENT_ABORTED, NULL,
+						  hif_drv->usr_scan_req.arg, NULL);
+		hif_drv->usr_scan_req.scan_result = NULL;
 	}
 
-	hif_drv->enuHostIFstate = HOST_IF_IDLE;
+	hif_drv->hif_state = HOST_IF_IDLE;
 
 	scan_while_connected = false;
 
@@ -4222,7 +3926,7 @@ s32 host_int_deinit(struct host_if_drv *hif_drv)
 			PRINT_D(HOSTINF_DBG, ">> Connect timer is active\n");
 
 		msg.id = HOST_IF_MSG_EXIT;
-		msg.drv = hif_drv;
+		msg.vif = vif;
 
 		result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 		if (result != 0)
@@ -4233,12 +3937,6 @@ s32 host_int_deinit(struct host_if_drv *hif_drv)
 		wilc_mq_destroy(&hif_msg_q);
 	}
 
-	down(&hif_drv->gtOsCfgValuesSem);
-
-	ret = remove_handler_in_list(hif_drv);
-	if (ret)
-		result = -ENOENT;
-
 	kfree(hif_drv);
 
 	clients_count--;
@@ -4247,15 +3945,20 @@ s32 host_int_deinit(struct host_if_drv *hif_drv)
 	return result;
 }
 
-void NetworkInfoReceived(u8 *pu8Buffer, u32 u32Length)
+void wilc_network_info_received(struct wilc *wilc, u8 *pu8Buffer,
+				u32 u32Length)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	int id;
 	struct host_if_drv *hif_drv = NULL;
+	struct wilc_vif *vif;
 
 	id = ((pu8Buffer[u32Length - 4]) | (pu8Buffer[u32Length - 3] << 8) | (pu8Buffer[u32Length - 2] << 16) | (pu8Buffer[u32Length - 1] << 24));
-	hif_drv = get_handler_from_id(id);
+	vif = wilc_get_vif_from_idx(wilc, id);
+	if (!vif)
+		return;
+	hif_drv = vif->hif_drv;
 
 	if (!hif_drv || hif_drv == terminated_handle)	{
 		PRINT_ER("NetworkInfo received but driver not init[%p]\n", hif_drv);
@@ -4265,7 +3968,7 @@ void NetworkInfoReceived(u8 *pu8Buffer, u32 u32Length)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_RCVD_NTWRK_INFO;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	msg.body.net_info.len = u32Length;
 	msg.body.net_info.buffer = kmalloc(u32Length, GFP_KERNEL);
@@ -4276,17 +3979,25 @@ void NetworkInfoReceived(u8 *pu8Buffer, u32 u32Length)
 		PRINT_ER("Error in sending network info message queue message parameters: Error(%d)\n", result);
 }
 
-void GnrlAsyncInfoReceived(u8 *pu8Buffer, u32 u32Length)
+void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer,
+				   u32 u32Length)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	int id;
 	struct host_if_drv *hif_drv = NULL;
+	struct wilc_vif *vif;
 
 	down(&hif_sema_deinit);
 
 	id = ((pu8Buffer[u32Length - 4]) | (pu8Buffer[u32Length - 3] << 8) | (pu8Buffer[u32Length - 2] << 16) | (pu8Buffer[u32Length - 1] << 24));
-	hif_drv = get_handler_from_id(id);
+	vif = wilc_get_vif_from_idx(wilc, id);
+	if (!vif) {
+		up(&hif_sema_deinit);
+		return;
+	}
+
+	hif_drv = vif->hif_drv;
 	PRINT_D(HOSTINF_DBG, "General asynchronous info packet received\n");
 
 	if (!hif_drv || hif_drv == terminated_handle) {
@@ -4295,7 +4006,7 @@ void GnrlAsyncInfoReceived(u8 *pu8Buffer, u32 u32Length)
 		return;
 	}
 
-	if (!hif_drv->usr_conn_req.pfUserConnectResult) {
+	if (!hif_drv->usr_conn_req.conn_result) {
 		PRINT_ER("Received mac status is not needed when there is no current Connect Reques\n");
 		up(&hif_sema_deinit);
 		return;
@@ -4304,7 +4015,7 @@ void GnrlAsyncInfoReceived(u8 *pu8Buffer, u32 u32Length)
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_RCVD_GNRL_ASYNC_INFO;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	msg.body.async_info.len = u32Length;
 	msg.body.async_info.buffer = kmalloc(u32Length, GFP_KERNEL);
@@ -4317,26 +4028,31 @@ void GnrlAsyncInfoReceived(u8 *pu8Buffer, u32 u32Length)
 	up(&hif_sema_deinit);
 }
 
-void host_int_ScanCompleteReceived(u8 *pu8Buffer, u32 u32Length)
+void wilc_scan_complete_received(struct wilc *wilc, u8 *pu8Buffer,
+				 u32 u32Length)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	int id;
 	struct host_if_drv *hif_drv = NULL;
+	struct wilc_vif *vif;
 
 	id = ((pu8Buffer[u32Length - 4]) | (pu8Buffer[u32Length - 3] << 8) | (pu8Buffer[u32Length - 2] << 16) | (pu8Buffer[u32Length - 1] << 24));
-	hif_drv = get_handler_from_id(id);
+	vif = wilc_get_vif_from_idx(wilc, id);
+	if (!vif)
+		return;
+	hif_drv = vif->hif_drv;
 
 	PRINT_D(GENERIC_DBG, "Scan notification received %p\n", hif_drv);
 
 	if (!hif_drv || hif_drv == terminated_handle)
 		return;
 
-	if (hif_drv->usr_scan_req.pfUserScanResult) {
+	if (hif_drv->usr_scan_req.scan_result) {
 		memset(&msg, 0, sizeof(struct host_if_msg));
 
 		msg.id = HOST_IF_MSG_RCVD_SCAN_COMPLETE;
-		msg.drv = hif_drv;
+		msg.vif = vif;
 
 		result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 		if (result)
@@ -4346,14 +4062,15 @@ void host_int_ScanCompleteReceived(u8 *pu8Buffer, u32 u32Length)
 	return;
 }
 
-s32 host_int_remain_on_channel(struct host_if_drv *hif_drv, u32 u32SessionID,
-			       u32 u32duration, u16 chan,
-			       wilc_remain_on_chan_expired RemainOnChanExpired,
-			       wilc_remain_on_chan_ready RemainOnChanReady,
-			       void *pvUserArg)
+s32 wilc_remain_on_channel(struct wilc_vif *vif, u32 u32SessionID,
+			   u32 u32duration, u16 chan,
+			   wilc_remain_on_chan_expired RemainOnChanExpired,
+			   wilc_remain_on_chan_ready RemainOnChanReady,
+			   void *pvUserArg)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4363,13 +4080,13 @@ s32 host_int_remain_on_channel(struct host_if_drv *hif_drv, u32 u32SessionID,
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_REMAIN_ON_CHAN;
-	msg.body.remain_on_ch.u16Channel = chan;
-	msg.body.remain_on_ch.pRemainOnChanExpired = RemainOnChanExpired;
-	msg.body.remain_on_ch.pRemainOnChanReady = RemainOnChanReady;
-	msg.body.remain_on_ch.pVoid = pvUserArg;
+	msg.body.remain_on_ch.ch = chan;
+	msg.body.remain_on_ch.expired = RemainOnChanExpired;
+	msg.body.remain_on_ch.ready = RemainOnChanReady;
+	msg.body.remain_on_ch.arg = pvUserArg;
 	msg.body.remain_on_ch.u32duration = u32duration;
-	msg.body.remain_on_ch.u32ListenSessionID = u32SessionID;
-	msg.drv = hif_drv;
+	msg.body.remain_on_ch.id = u32SessionID;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -4378,22 +4095,23 @@ s32 host_int_remain_on_channel(struct host_if_drv *hif_drv, u32 u32SessionID,
 	return result;
 }
 
-s32 host_int_ListenStateExpired(struct host_if_drv *hif_drv, u32 u32SessionID)
+s32 wilc_listen_state_expired(struct wilc_vif *vif, u32 u32SessionID)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
 		return -EFAULT;
 	}
 
-	del_timer(&hif_drv->hRemainOnChannel);
+	del_timer(&hif_drv->remain_on_ch_timer);
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
 	msg.id = HOST_IF_MSG_LISTEN_TIMER_FIRED;
-	msg.drv = hif_drv;
-	msg.body.remain_on_ch.u32ListenSessionID = u32SessionID;
+	msg.vif = vif;
+	msg.body.remain_on_ch.id = u32SessionID;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -4402,10 +4120,11 @@ s32 host_int_ListenStateExpired(struct host_if_drv *hif_drv, u32 u32SessionID)
 	return result;
 }
 
-s32 host_int_frame_register(struct host_if_drv *hif_drv, u16 u16FrameType, bool bReg)
+s32 wilc_frame_register(struct wilc_vif *vif, u16 u16FrameType, bool bReg)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4418,21 +4137,21 @@ s32 host_int_frame_register(struct host_if_drv *hif_drv, u16 u16FrameType, bool
 	switch (u16FrameType) {
 	case ACTION:
 		PRINT_D(HOSTINF_DBG, "ACTION\n");
-		msg.body.reg_frame.u8Regid = ACTION_FRM_IDX;
+		msg.body.reg_frame.reg_id = ACTION_FRM_IDX;
 		break;
 
 	case PROBE_REQ:
 		PRINT_D(HOSTINF_DBG, "PROBE REQ\n");
-		msg.body.reg_frame.u8Regid = PROBE_REQ_IDX;
+		msg.body.reg_frame.reg_id = PROBE_REQ_IDX;
 		break;
 
 	default:
 		PRINT_D(HOSTINF_DBG, "Not valid frame type\n");
 		break;
 	}
-	msg.body.reg_frame.u16FrameType = u16FrameType;
-	msg.body.reg_frame.bReg = bReg;
-	msg.drv = hif_drv;
+	msg.body.reg_frame.frame_type = u16FrameType;
+	msg.body.reg_frame.reg = bReg;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -4441,13 +4160,13 @@ s32 host_int_frame_register(struct host_if_drv *hif_drv, u16 u16FrameType, bool
 	return result;
 }
 
-s32 host_int_add_beacon(struct host_if_drv *hif_drv, u32 u32Interval,
-			u32 u32DTIMPeriod, u32 u32HeadLen, u8 *pu8Head,
-			u32 u32TailLen, u8 *pu8Tail)
+s32 wilc_add_beacon(struct wilc_vif *vif, u32 u32Interval, u32 u32DTIMPeriod,
+		    u32 u32HeadLen, u8 *pu8Head, u32 u32TailLen, u8 *pu8Tail)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct beacon_attr *pstrSetBeaconParam = &msg.body.beacon_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4459,7 +4178,7 @@ s32 host_int_add_beacon(struct host_if_drv *hif_drv, u32 u32Interval,
 	PRINT_D(HOSTINF_DBG, "Setting adding beacon message queue params\n");
 
 	msg.id = HOST_IF_MSG_ADD_BEACON;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	pstrSetBeaconParam->interval = u32Interval;
 	pstrSetBeaconParam->dtim_period = u32DTIMPeriod;
 	pstrSetBeaconParam->head_len = u32HeadLen;
@@ -4495,10 +4214,11 @@ ERRORHANDLER:
 	return result;
 }
 
-s32 host_int_del_beacon(struct host_if_drv *hif_drv)
+int wilc_del_beacon(struct wilc_vif *vif)
 {
-	s32 result = 0;
+	int result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4506,7 +4226,7 @@ s32 host_int_del_beacon(struct host_if_drv *hif_drv)
 	}
 
 	msg.id = HOST_IF_MSG_DEL_BEACON;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	PRINT_D(HOSTINF_DBG, "Setting deleting beacon message queue params\n");
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -4516,12 +4236,12 @@ s32 host_int_del_beacon(struct host_if_drv *hif_drv)
 	return result;
 }
 
-s32 host_int_add_station(struct host_if_drv *hif_drv,
-			 struct add_sta_param *pstrStaParams)
+int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param)
 {
-	s32 result = 0;
+	int result = 0;
 	struct host_if_msg msg;
-	struct add_sta_param *pstrAddStationMsg = &msg.body.add_sta_info;
+	struct add_sta_param *add_sta_info = &msg.body.add_sta_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4533,17 +4253,15 @@ s32 host_int_add_station(struct host_if_drv *hif_drv,
 	PRINT_D(HOSTINF_DBG, "Setting adding station message queue params\n");
 
 	msg.id = HOST_IF_MSG_ADD_STATION;
-	msg.drv = hif_drv;
-
-	memcpy(pstrAddStationMsg, pstrStaParams, sizeof(struct add_sta_param));
-	if (pstrAddStationMsg->u8NumRates > 0) {
-		u8 *rates = kmalloc(pstrAddStationMsg->u8NumRates, GFP_KERNEL);
-
-		if (!rates)
+	msg.vif = vif;
+
+	memcpy(add_sta_info, sta_param, sizeof(struct add_sta_param));
+	if (add_sta_info->rates_len > 0) {
+		add_sta_info->rates = kmemdup(sta_param->rates,
+				      add_sta_info->rates_len,
+				      GFP_KERNEL);
+		if (!add_sta_info->rates)
 			return -ENOMEM;
-
-		memcpy(rates, pstrStaParams->pu8Rates, pstrAddStationMsg->u8NumRates);
-		pstrAddStationMsg->pu8Rates = rates;
 	}
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -4552,11 +4270,12 @@ s32 host_int_add_station(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_del_station(struct host_if_drv *hif_drv, const u8 *pu8MacAddr)
+int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr)
 {
-	s32 result = 0;
+	int result = 0;
 	struct host_if_msg msg;
-	struct del_sta *pstrDelStationMsg = &msg.body.del_sta_info;
+	struct del_sta *del_sta_info = &msg.body.del_sta_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4568,12 +4287,12 @@ s32 host_int_del_station(struct host_if_drv *hif_drv, const u8 *pu8MacAddr)
 	PRINT_D(HOSTINF_DBG, "Setting deleting station message queue params\n");
 
 	msg.id = HOST_IF_MSG_DEL_STATION;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
-	if (!pu8MacAddr)
-		eth_broadcast_addr(pstrDelStationMsg->mac_addr);
+	if (!mac_addr)
+		eth_broadcast_addr(del_sta_info->mac_addr);
 	else
-		memcpy(pstrDelStationMsg->mac_addr, pu8MacAddr, ETH_ALEN);
+		memcpy(del_sta_info->mac_addr, mac_addr, ETH_ALEN);
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -4581,12 +4300,12 @@ s32 host_int_del_station(struct host_if_drv *hif_drv, const u8 *pu8MacAddr)
 	return result;
 }
 
-s32 host_int_del_allstation(struct host_if_drv *hif_drv,
-			    u8 pu8MacAddr[][ETH_ALEN])
+s32 wilc_del_allstation(struct wilc_vif *vif, u8 pu8MacAddr[][ETH_ALEN])
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct del_all_sta *pstrDelAllStationMsg = &msg.body.del_all_sta_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 	u8 au8Zero_Buff[ETH_ALEN] = {0};
 	u32 i;
 	u8 u8AssocNumb = 0;
@@ -4601,7 +4320,7 @@ s32 host_int_del_allstation(struct host_if_drv *hif_drv,
 	PRINT_D(HOSTINF_DBG, "Setting deauthenticating station message queue params\n");
 
 	msg.id = HOST_IF_MSG_DEL_ALL_STA;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	for (i = 0; i < MAX_NUM_STA; i++) {
 		if (memcmp(pu8MacAddr[i], au8Zero_Buff, ETH_ALEN)) {
@@ -4632,12 +4351,13 @@ s32 host_int_del_allstation(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_edit_station(struct host_if_drv *hif_drv,
-			  struct add_sta_param *pstrStaParams)
+s32 wilc_edit_station(struct wilc_vif *vif,
+		      struct add_sta_param *pstrStaParams)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct add_sta_param *pstrAddStationMsg = &msg.body.add_sta_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4649,17 +4369,18 @@ s32 host_int_edit_station(struct host_if_drv *hif_drv,
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_EDIT_STATION;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	memcpy(pstrAddStationMsg, pstrStaParams, sizeof(struct add_sta_param));
-	if (pstrAddStationMsg->u8NumRates > 0) {
-		u8 *rates = kmalloc(pstrAddStationMsg->u8NumRates, GFP_KERNEL);
+	if (pstrAddStationMsg->rates_len > 0) {
+		u8 *rates = kmalloc(pstrAddStationMsg->rates_len, GFP_KERNEL);
 
 		if (!rates)
 			return -ENOMEM;
 
-		memcpy(rates, pstrStaParams->pu8Rates, pstrAddStationMsg->u8NumRates);
-		pstrAddStationMsg->pu8Rates = rates;
+		memcpy(rates, pstrStaParams->rates,
+		       pstrAddStationMsg->rates_len);
+		pstrAddStationMsg->rates = rates;
 	}
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -4669,13 +4390,12 @@ s32 host_int_edit_station(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_set_power_mgmt(struct host_if_drv *hif_drv,
-			    bool bIsEnabled,
-			    u32 u32Timeout)
+s32 wilc_set_power_mgmt(struct wilc_vif *vif, bool bIsEnabled, u32 u32Timeout)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct power_mgmt_param *pstrPowerMgmtParam = &msg.body.pwr_mgmt_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	PRINT_INFO(HOSTINF_DBG, "\n\n>> Setting PS to %d <<\n\n", bIsEnabled);
 
@@ -4689,7 +4409,7 @@ s32 host_int_set_power_mgmt(struct host_if_drv *hif_drv,
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_POWER_MGMT;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	pstrPowerMgmtParam->enabled = bIsEnabled;
 	pstrPowerMgmtParam->timeout = u32Timeout;
@@ -4700,13 +4420,13 @@ s32 host_int_set_power_mgmt(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_setup_multicast_filter(struct host_if_drv *hif_drv,
-				    bool bIsEnabled,
-				    u32 u32count)
+s32 wilc_setup_multicast_filter(struct wilc_vif *vif, bool bIsEnabled,
+				u32 u32count)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct set_multicast *pstrMulticastFilterParam = &msg.body.multicast_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4718,7 +4438,7 @@ s32 host_int_setup_multicast_filter(struct host_if_drv *hif_drv,
 	memset(&msg, 0, sizeof(struct host_if_msg));
 
 	msg.id = HOST_IF_MSG_SET_MULTICAST_FILTER;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 
 	pstrMulticastFilterParam->enabled = bIsEnabled;
 	pstrMulticastFilterParam->cnt = u32count;
@@ -4886,7 +4606,7 @@ static void *host_int_ParseJoinBssParam(tstrNetworkInfo *ptstrNetworkInfo)
 	return (void *)pNewJoinBssParam;
 }
 
-void host_int_freeJoinParams(void *pJoinParams)
+void wilc_free_join_params(void *pJoinParams)
 {
 	if ((struct bss_param *)pJoinParams)
 		kfree((struct bss_param *)pJoinParams);
@@ -4894,41 +4614,12 @@ void host_int_freeJoinParams(void *pJoinParams)
 		PRINT_ER("Unable to FREE null pointer\n");
 }
 
-s32 host_int_delBASession(struct host_if_drv *hif_drv, char *pBSSID, char TID)
-{
-	s32 result = 0;
-	struct host_if_msg msg;
-	struct ba_session_info *pBASessionInfo = &msg.body.session_info;
-
-	if (!hif_drv) {
-		PRINT_ER("driver is null\n");
-		return -EFAULT;
-	}
-
-	memset(&msg, 0, sizeof(struct host_if_msg));
-
-	msg.id = HOST_IF_MSG_DEL_BA_SESSION;
-
-	memcpy(pBASessionInfo->au8Bssid, pBSSID, ETH_ALEN);
-	pBASessionInfo->u8Ted = TID;
-	msg.drv = hif_drv;
-
-	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
-	if (result)
-		PRINT_ER("wilc_mq_send fail\n");
-
-	down(&hif_sema_wait_response);
-
-	return result;
-}
-
-s32 host_int_del_All_Rx_BASession(struct host_if_drv *hif_drv,
-				  char *pBSSID,
-				  char TID)
+s32 wilc_del_all_rx_ba_session(struct wilc_vif *vif, char *pBSSID, char TID)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
 	struct ba_session_info *pBASessionInfo = &msg.body.session_info;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	if (!hif_drv) {
 		PRINT_ER("driver is null\n");
@@ -4939,9 +4630,9 @@ s32 host_int_del_All_Rx_BASession(struct host_if_drv *hif_drv,
 
 	msg.id = HOST_IF_MSG_DEL_ALL_RX_BA_SESSIONS;
 
-	memcpy(pBASessionInfo->au8Bssid, pBSSID, ETH_ALEN);
-	pBASessionInfo->u8Ted = TID;
-	msg.drv = hif_drv;
+	memcpy(pBASessionInfo->bssid, pBSSID, ETH_ALEN);
+	pBASessionInfo->tid = TID;
+	msg.vif = vif;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
 	if (result)
@@ -4952,10 +4643,11 @@ s32 host_int_del_All_Rx_BASession(struct host_if_drv *hif_drv,
 	return result;
 }
 
-s32 host_int_setup_ipaddress(struct host_if_drv *hif_drv, u8 *u16ipadd, u8 idx)
+s32 wilc_setup_ipaddress(struct wilc_vif *vif, u8 *u16ipadd, u8 idx)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
+	struct host_if_drv *hif_drv = vif->hif_drv;
 
 	return 0;
 
@@ -4969,7 +4661,7 @@ s32 host_int_setup_ipaddress(struct host_if_drv *hif_drv, u8 *u16ipadd, u8 idx)
 	msg.id = HOST_IF_MSG_SET_IPADDRESS;
 
 	msg.body.ip_info.ip_addr = u16ipadd;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.ip_info.idx = idx;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
@@ -4979,7 +4671,9 @@ s32 host_int_setup_ipaddress(struct host_if_drv *hif_drv, u8 *u16ipadd, u8 idx)
 	return result;
 }
 
-s32 host_int_get_ipaddress(struct host_if_drv *hif_drv, u8 *u16ipadd, u8 idx)
+static s32 host_int_get_ipaddress(struct wilc_vif *vif,
+				  struct host_if_drv *hif_drv,
+				  u8 *u16ipadd, u8 idx)
 {
 	s32 result = 0;
 	struct host_if_msg msg;
@@ -4994,7 +4688,7 @@ s32 host_int_get_ipaddress(struct host_if_drv *hif_drv, u8 *u16ipadd, u8 idx)
 	msg.id = HOST_IF_MSG_GET_IPADDRESS;
 
 	msg.body.ip_info.ip_addr = u16ipadd;
-	msg.drv = hif_drv;
+	msg.vif = vif;
 	msg.body.ip_info.idx = idx;
 
 	result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg));
diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h
index b854db5ac932..8faac27002e9 100644
--- a/drivers/staging/wilc1000/host_interface.h
+++ b/drivers/staging/wilc1000/host_interface.h
@@ -1,12 +1,3 @@
-/*!
- *  @file	host_interface.h
- *  @brief	File containg host interface APIs
- *  @author	zsalah
- *  @sa		host_interface.c
- *  @date	8 March 2012
- *  @version	1.0
- */
-
 #ifndef HOST_INT_H
 #define HOST_INT_H
 
@@ -19,8 +10,12 @@
 #define STATION_MODE	0x02
 #define GO_MODE		0x03
 #define CLIENT_MODE	0x04
+#define ACTION		0xD0
+#define PROBE_REQ	0x40
+#define PROBE_RESP	0x50
 
-
+#define ACTION_FRM_IDX				0
+#define PROBE_REQ_IDX				1
 #define MAX_NUM_STA				9
 #define ACTIVE_SCAN_TIME			10
 #define PASSIVE_SCAN_TIME			1200
@@ -58,11 +53,11 @@
 #define NUM_CONCURRENT_IFC			2
 
 struct rf_info {
-	u8 u8LinkSpeed;
-	s8 s8RSSI;
-	u32 u32TxCount;
-	u32 u32RxCount;
-	u32 u32TxFailureCount;
+	u8 link_speed;
+	s8 rssi;
+	u32 tx_cnt;
+	u32 rx_cnt;
+	u32 tx_fail_cnt;
 };
 
 enum host_if_state {
@@ -168,36 +163,23 @@ enum conn_event {
 
 enum KEY_TYPE {
 	WEP,
-	WPARxGtk,
-	WPAPtk,
+	WPA_RX_GTK,
+	WPA_PTK,
 	PMKSA,
 };
 
-
-/*Scan callBack function definition*/
 typedef void (*wilc_scan_result)(enum scan_event, tstrNetworkInfo *,
 				  void *, void *);
 
-/*Connect callBack function definition*/
 typedef void (*wilc_connect_result)(enum conn_event,
 				     tstrConnectInfo *,
 				     u8,
 				     tstrDisconnectNotifInfo *,
 				     void *);
 
-typedef void (*wilc_remain_on_chan_expired)(void *, u32);  /*Remain on channel expiration callback function*/
-typedef void (*wilc_remain_on_chan_ready)(void *); /*Remain on channel callback function*/
+typedef void (*wilc_remain_on_chan_expired)(void *, u32);
+typedef void (*wilc_remain_on_chan_ready)(void *);
 
-/*!
- *  @struct             rcvd_net_info
- *  @brief		Structure to hold Received Asynchronous Network info
- *  @details
- *  @todo
- *  @sa
- *  @author		Mostafa Abu Bakr
- *  @date		25 March 2012
- *  @version		1.0
- */
 struct rcvd_net_info {
 	u8 *buffer;
 	u32 len;
@@ -214,29 +196,23 @@ struct hidden_network {
 };
 
 struct user_scan_req {
-	/* Scan user call back function */
-	wilc_scan_result pfUserScanResult;
-
-	/* User specific parameter to be delivered through the Scan User Callback function */
-	void *u32UserScanPvoid;
-
-	u32 u32RcvdChCount;
-	struct found_net_info astrFoundNetworkInfo[MAX_NUM_SCANNED_NETWORKS];
+	wilc_scan_result scan_result;
+	void *arg;
+	u32 rcvd_ch_cnt;
+	struct found_net_info net_info[MAX_NUM_SCANNED_NETWORKS];
 };
 
 struct user_conn_req {
 	u8 *pu8bssid;
 	u8 *pu8ssid;
 	u8 u8security;
-	enum AUTHTYPE tenuAuth_type;
-	size_t ssidLen;
-	u8 *pu8ConnReqIEs;
-	size_t ConnReqIEsLen;
-	/* Connect user call back function */
-	wilc_connect_result pfUserConnectResult;
-	bool IsHTCapable;
-	/* User specific parameter to be delivered through the Connect User Callback function */
-	void *u32UserConnectPvoid;
+	enum AUTHTYPE auth_type;
+	size_t ssid_len;
+	u8 *ies;
+	size_t ies_len;
+	wilc_connect_result conn_result;
+	bool ht_capable;
+	void *arg;
 };
 
 struct drv_handler {
@@ -256,875 +232,155 @@ struct get_mac_addr {
 };
 
 struct ba_session_info {
-	u8 au8Bssid[ETH_ALEN];
-	u8 u8Ted;
-	u16 u16BufferSize;
-	u16 u16SessionTimeout;
+	u8 bssid[ETH_ALEN];
+	u8 tid;
+	u16 buf_size;
+	u16 time_out;
 };
 
 struct remain_ch {
-	u16 u16Channel;
+	u16 ch;
 	u32 u32duration;
-	wilc_remain_on_chan_expired pRemainOnChanExpired;
-	wilc_remain_on_chan_ready pRemainOnChanReady;
-	void *pVoid;
-	u32 u32ListenSessionID;
+	wilc_remain_on_chan_expired expired;
+	wilc_remain_on_chan_ready ready;
+	void *arg;
+	u32 id;
 };
 
 struct reg_frame {
-	bool bReg;
-	u16 u16FrameType;
-	u8 u8Regid;
+	bool reg;
+	u16 frame_type;
+	u8 reg_id;
 };
 
-
-#define ACTION			0xD0
-#define PROBE_REQ		0x40
-#define PROBE_RESP		0x50
-#define ACTION_FRM_IDX		0
-#define PROBE_REQ_IDX		1
-
-
 enum p2p_listen_state {
 	P2P_IDLE,
 	P2P_LISTEN,
 	P2P_GRP_FORMATION
 };
 
+struct wilc;
 struct host_if_drv {
 	struct user_scan_req usr_scan_req;
 	struct user_conn_req usr_conn_req;
 	struct remain_ch remain_on_ch;
 	u8 remain_on_ch_pending;
-	u64 u64P2p_MgmtTimeout;
-	u8 u8P2PConnect;
+	u64 p2p_timeout;
+	u8 p2p_connect;
+
+	enum host_if_state hif_state;
 
-	enum host_if_state enuHostIFstate;
+	u8 assoc_bssid[ETH_ALEN];
+	struct cfg_param_val cfg_values;
 
-	u8 au8AssociatedBSSID[ETH_ALEN];
-	struct cfg_param_val strCfgValues;
-/* semaphores */
-	struct semaphore gtOsCfgValuesSem;
-	struct semaphore hSemTestKeyBlock;
+	struct semaphore sem_cfg_values;
+	struct semaphore sem_test_key_block;
+	struct semaphore sem_test_disconn_block;
+	struct semaphore sem_get_rssi;
+	struct semaphore sem_get_link_speed;
+	struct semaphore sem_get_chnl;
+	struct semaphore sem_inactive_time;
 
-	struct semaphore hSemTestDisconnectBlock;
-	struct semaphore hSemGetRSSI;
-	struct semaphore hSemGetLINKSPEED;
-	struct semaphore hSemGetCHNL;
-	struct semaphore hSemInactiveTime;
-/* timer handlers */
-	struct timer_list hScanTimer;
-	struct timer_list hConnectTimer;
-	struct timer_list hRemainOnChannel;
+	struct timer_list scan_timer;
+	struct timer_list connect_timer;
+	struct timer_list remain_on_ch_timer;
 
 	bool IFC_UP;
 };
 
 struct add_sta_param {
-	u8 au8BSSID[ETH_ALEN];
-	u16 u16AssocID;
-	u8 u8NumRates;
-	const u8 *pu8Rates;
-	bool bIsHTSupported;
-	u16 u16HTCapInfo;
-	u8 u8AmpduParams;
-	u8 au8SuppMCsSet[16];
-	u16 u16HTExtParams;
-	u32 u32TxBeamformingCap;
-	u8 u8ASELCap;
-	u16 u16FlagsMask;               /*<! Determines which of u16FlagsSet were changed>*/
-	u16 u16FlagsSet;                /*<! Decoded according to tenuWILC_StaFlag */
+	u8 bssid[ETH_ALEN];
+	u16 aid;
+	u8 rates_len;
+	const u8 *rates;
+	bool ht_supported;
+	u16 ht_capa_info;
+	u8 ht_ampdu_params;
+	u8 ht_supp_mcs_set[16];
+	u16 ht_ext_params;
+	u32 ht_tx_bf_cap;
+	u8 ht_ante_sel;
+	u16 flags_mask;
+	u16 flags_set;
 };
 
-/*****************************************************************************/
-/*																			 */
-/*							Host Interface API								 */
-/*																			 */
-/*****************************************************************************/
-
-/**
- *  @brief              removes wpa/wpa2 keys
- *  @details    only in BSS STA mode if External Supplicant support is enabled.
- *                              removes all WPA/WPA2 station key entries from MAC hardware.
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  6 bytes of Station Adress in the station entry table
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_remove_key(struct host_if_drv *hWFIDrv, const u8 *pu8StaAddress);
-/**
- *  @brief              removes WEP key
- *  @details    valid only in BSS STA mode if External Supplicant support is enabled.
- *                              remove a WEP key entry from MAC HW.
- *                              The BSS Station automatically finds the index of the entry using its
- *                              BSS ID and removes that entry from the MAC hardware.
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  6 bytes of Station Adress in the station entry table
- *  @return             Error code indicating success/failure
- *  @note               NO need for the STA add since it is not used for processing
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-int host_int_remove_wep_key(struct host_if_drv *wfi_drv, u8 index);
-/**
- *  @brief              sets WEP deafault key
- *  @details    Sets the index of the WEP encryption key in use,
- *                              in the key table
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  key index ( 0, 1, 2, 3)
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-int host_int_set_wep_default_key(struct host_if_drv *hif_drv, u8 index);
-
-/**
- *  @brief              sets WEP deafault key
- *  @details    valid only in BSS STA mode if External Supplicant support is enabled.
- *                              sets WEP key entry into MAC hardware when it receives the
- *                              corresponding request from NDIS.
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing WEP Key in the following format
- *|---------------------------------------|
- *|Key ID Value | Key Length |	Key		|
- *|-------------|------------|------------|
- |	1byte	  |		1byte  | Key Length	|
- ||---------------------------------------|
- |
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-int host_int_add_wep_key_bss_sta(struct host_if_drv *hif_drv,
-				 const u8 *key, u8 len, u8 index);
-/**
- *  @brief              host_int_add_wep_key_bss_ap
- *  @details    valid only in AP mode if External Supplicant support is enabled.
- *                              sets WEP key entry into MAC hardware when it receives the
- *                              corresponding request from NDIS.
- *  @param[in,out] handle to the wifi driver
- *
- *
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		mdaftedar
- *  @date		28 Feb 2013
- *  @version		1.0
- */
-int host_int_add_wep_key_bss_ap(struct host_if_drv *hif_drv,
-				const u8 *key, u8 len, u8 index, u8 mode,
-				enum AUTHTYPE auth_type);
-
-/**
- *  @brief              adds ptk Key
- *  @details
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing PTK Key in the following format
- *|-------------------------------------------------------------------------|
- *|Sta Adress | Key Length |	Temporal Key | Rx Michael Key |Tx Michael Key |
- *|-----------|------------|---------------|----------------|---------------|
- |	6 bytes |	1byte	 |   16 bytes	 |	  8 bytes	  |	   8 bytes	  |
- ||-------------------------------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_add_ptk(struct host_if_drv *hWFIDrv, const u8 *pu8Ptk, u8 u8PtkKeylen,
-			     const u8 *mac_addr, const u8 *pu8RxMic, const u8 *pu8TxMic, u8 mode, u8 u8Ciphermode, u8 u8Idx);
-
-/**
- *  @brief              host_int_get_inactive_time
- *  @details
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing inactive time
- *
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		mdaftedar
- *  @date		15 April 2013
- *  @version		1.0
- */
-s32 host_int_get_inactive_time(struct host_if_drv *hWFIDrv, const u8 *mac, u32 *pu32InactiveTime);
-
-/**
- *  @brief              adds Rx GTk Key
- *  @details
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing Rx GTK Key in the following format
- *|----------------------------------------------------------------------------|
- *|Sta Address | Key RSC | KeyID | Key Length | Temporal Key	| Rx Michael Key |
- *|------------|---------|-------|------------|---------------|----------------|
- |	6 bytes	 | 8 byte  |1 byte |  1 byte	|   16 bytes	|	  8 bytes	 |
- ||----------------------------------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_add_rx_gtk(struct host_if_drv *hWFIDrv, const u8 *pu8RxGtk, u8 u8GtkKeylen,
-				u8 u8KeyIdx, u32 u32KeyRSClen, const u8 *KeyRSC,
-				const u8 *pu8RxMic, const u8 *pu8TxMic, u8 mode, u8 u8Ciphermode);
-
-
-/**
- *  @brief              adds Tx GTk Key
- *  @details
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing Tx GTK Key in the following format
- *|----------------------------------------------------|
- | KeyID | Key Length | Temporal Key	| Tx Michael Key |
- ||-------|------------|--------------|----------------|
- ||1 byte |  1 byte	 |   16 bytes	|	  8 bytes	 |
- ||----------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_add_tx_gtk(struct host_if_drv *hWFIDrv, u8 u8KeyLen, u8 *pu8TxGtk, u8 u8KeyIdx);
-
-/**
- *  @brief              caches the pmkid
- *  @details    valid only in BSS STA mode if External Supplicant
- *                              support is enabled. This Function sets the PMKID in firmware
- *                              when host drivr receives the corresponding request from NDIS.
- *                              The firmware then includes theset PMKID in the appropriate
- *                              management frames
- *  @param[in,out] handle to the wifi driver
- *  @param[in]  message containing PMKID Info in the following format
- *|-----------------------------------------------------------------|
- *|NumEntries |	BSSID[1] | PMKID[1] |  ...	| BSSID[K] | PMKID[K] |
- *|-----------|------------|----------|-------|----------|----------|
- |	   1	|		6	 |   16		|  ...	|	 6	   |	16	  |
- ||-----------------------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_set_pmkid_info(struct host_if_drv *hWFIDrv, struct host_if_pmkid_attr *pu8PmkidInfoArray);
-/**
- *  @brief              gets the cached the pmkid info
- *  @details    valid only in BSS STA mode if External Supplicant
- *                              support is enabled. This Function sets the PMKID in firmware
- *                              when host drivr receives the corresponding request from NDIS.
- *                              The firmware then includes theset PMKID in the appropriate
- *                              management frames
- *  @param[in,out] handle to the wifi driver,
- *
- *                                message containing PMKID Info in the following format
- *|-----------------------------------------------------------------|
- *|NumEntries |	BSSID[1] | PMKID[1] |  ...	| BSSID[K] | PMKID[K] |
- *|-----------|------------|----------|-------|----------|----------|
- |	   1	|		6	 |   16		|  ...	|	 6	   |	16	  |
- ||-----------------------------------------------------------------|
- *  @param[in]
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_get_pmkid_info(struct host_if_drv *hWFIDrv, u8 *pu8PmkidInfoArray,
-				    u32 u32PmkidInfoLen);
-
-/**
- *  @brief              sets the pass phrase
- *  @details    AP/STA mode. This function gives the pass phrase used to
- *                              generate the Pre-Shared Key when WPA/WPA2 is enabled
- *                              The length of the field can vary from 8 to 64 bytes,
- *                              the lower layer should get the
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]   String containing PSK
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_set_RSNAConfigPSKPassPhrase(struct host_if_drv *hWFIDrv, u8 *pu8PassPhrase,
-						 u8 u8Psklength);
-/**
- *  @brief              gets the pass phrase
- *  @details    AP/STA mode. This function gets the pass phrase used to
- *                              generate the Pre-Shared Key when WPA/WPA2 is enabled
- *                              The length of the field can vary from 8 to 64 bytes,
- *                              the lower layer should get the
- *  @param[in,out] handle to the wifi driver,
- *                                String containing PSK
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_get_RSNAConfigPSKPassPhrase(struct host_if_drv *hWFIDrv,
-						 u8 *pu8PassPhrase, u8 u8Psklength);
-
-/**
- *  @brief              gets mac address
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		mdaftedar
- *  @date		19 April 2012
- *  @version		1.0
- */
-s32 host_int_get_MacAddress(struct host_if_drv *hWFIDrv, u8 *pu8MacAddress);
-
-/**
- *  @brief              sets mac address
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		mabubakr
- *  @date		16 July 2012
- *  @version		1.0
- */
-s32 host_int_set_MacAddress(struct host_if_drv *hWFIDrv, u8 *pu8MacAddress);
-
-/**
- *  @brief              wait until msg q is empty
- *  @details
- *  @param[in,out]
- *
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		asobhy
- *  @date		19 march 2014
- *  @version		1.0
- */
-int host_int_wait_msg_queue_idle(void);
-
-/**
- *  @brief              sets a start scan request
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	Scan Source one of the following values
- *                              DEFAULT_SCAN        0
- *                              USER_SCAN           BIT0
- *                              OBSS_PERIODIC_SCAN  BIT1
- *                              OBSS_ONETIME_SCAN   BIT2
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_set_start_scan_req(struct host_if_drv *hWFIDrv, u8 scanSource);
-/**
- *  @brief              gets scan source of the last scan
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *                              Scan Source one of the following values
- *                              DEFAULT_SCAN        0
- *                              USER_SCAN           BIT0
- *                              OBSS_PERIODIC_SCAN  BIT1
- *                              OBSS_ONETIME_SCAN   BIT2
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_get_start_scan_req(struct host_if_drv *hWFIDrv, u8 *pu8ScanSource);
-
-/**
- *  @brief              sets a join request
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	Index of the bss descriptor
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_set_join_req(struct host_if_drv *hWFIDrv, u8 *pu8bssid,
-				  const u8 *pu8ssid, size_t ssidLen,
-				  const u8 *pu8IEs, size_t IEsLen,
-				  wilc_connect_result pfConnectResult, void *pvUserArg,
-				  u8 u8security, enum AUTHTYPE tenuAuth_type,
-				  u8 u8channel,
-				  void *pJoinParams);
-
-/**
- *  @brief              Flush a join request parameters to FW, but actual connection
- *  @details    The function is called in situation where WILC is connected to AP and
- *                      required to switch to hybrid FW for P2P connection
- *  @param[in] handle to the wifi driver,
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		Amr Abdel-Moghny
- *  @date		19 DEC 2013
- *  @version		8.0
- */
-
-s32 host_int_flush_join_req(struct host_if_drv *hWFIDrv);
-
-
-/**
- *  @brief              disconnects from the currently associated network
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	Reason Code of the Disconnection
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_disconnect(struct host_if_drv *hWFIDrv, u16 u16ReasonCode);
-
-/**
- *  @brief              disconnects a sta
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	Association Id of the station to be disconnected
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_disconnect_station(struct host_if_drv *hWFIDrv, u8 assoc_id);
-/**
- *  @brief              gets a Association request info
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *                              Message containg assoc. req info in the following format
- * ------------------------------------------------------------------------
- |                        Management Frame Format                    |
- ||-------------------------------------------------------------------|
- ||Frame Control|Duration|DA|SA|BSSID|Sequence Control|Frame Body|FCS |
- ||-------------|--------|--|--|-----|----------------|----------|----|
- | 2           |2       |6 |6 |6    |		2       |0 - 2312  | 4  |
- ||-------------------------------------------------------------------|
- |                                                                   |
- |             Association Request Frame - Frame Body                |
- ||-------------------------------------------------------------------|
- | Capability Information | Listen Interval | SSID | Supported Rates |
- ||------------------------|-----------------|------|-----------------|
- |			2            |		 2         | 2-34 |		3-10        |
- | ---------------------------------------------------------------------
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_get_assoc_req_info(struct host_if_drv *hWFIDrv, u8 *pu8AssocReqInfo,
-					u32 u32AssocReqInfoLen);
-/**
- *  @brief              gets a Association Response info
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *                              Message containg assoc. resp info
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-
-s32 host_int_get_assoc_res_info(struct host_if_drv *hWFIDrv, u8 *pu8AssocRespInfo,
-					u32 u32MaxAssocRespInfoLen, u32 *pu32RcvdAssocRespInfoLen);
-/**
- *  @brief              gets a Association Response info
- *  @details    Valid only in STA mode. This function gives the RSSI
- *                              values observed in all the channels at the time of scanning.
- *                              The length of the field is 1 greater that the total number of
- *                              channels supported. Byte 0 contains the number of channels while
- *                              each of Byte N contains	the observed RSSI value for the channel index N.
- *  @param[in,out] handle to the wifi driver,
- *                              array of scanned channels' RSSI
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_get_rx_power_level(struct host_if_drv *hWFIDrv, u8 *pu8RxPowerLevel,
-					u32 u32RxPowerLevelLen);
-
-/**
- *  @brief              sets a channel
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	Index of the channel to be set
- *|-------------------------------------------------------------------|
- |          CHANNEL1      CHANNEL2 ....		             CHANNEL14	|
- |  Input:         1             2					            14	|
- ||-------------------------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-int host_int_set_mac_chnl_num(struct host_if_drv *wfi_drv, u8 channel);
-
-/**
- *  @brief              gets the current channel index
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *                              current channel index
- *|-----------------------------------------------------------------------|
- |          CHANNEL1      CHANNEL2 ....                     CHANNEL14	|
- |  Input:         1             2                                 14	|
- ||-----------------------------------------------------------------------|
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_get_host_chnl_num(struct host_if_drv *hWFIDrv, u8 *pu8ChNo);
-/**
- *  @brief              gets the sta rssi
- *  @details    gets the currently maintained RSSI value for the station.
- *                              The received signal strength value in dB.
- *                              The range of valid values is -128 to 0.
- *  @param[in,out] handle to the wifi driver,
- *                              rssi value in dB
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_get_rssi(struct host_if_drv *hWFIDrv, s8 *ps8Rssi);
-s32 host_int_get_link_speed(struct host_if_drv *hWFIDrv, s8 *ps8lnkspd);
-/**
- *  @brief              scans a set of channels
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]		Scan source
- *                              Scan Type	PASSIVE_SCAN = 0,
- *                                                      ACTIVE_SCAN  = 1
- *                              Channels Array
- *                              Channels Array length
- *                              Scan Callback function
- *                              User Argument to be delivered back through the Scan Cllback function
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_scan(struct host_if_drv *hWFIDrv, u8 u8ScanSource,
-			  u8 u8ScanType, u8 *pu8ChnlFreqList,
-			  u8 u8ChnlListLen, const u8 *pu8IEs,
-			  size_t IEsLen, wilc_scan_result ScanResult,
-			  void *pvUserArg,
-			  struct hidden_network *pstrHiddenNetwork);
-/**
- *  @brief              sets configuration wids values
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @param[in]	WID, WID value
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 hif_set_cfg(struct host_if_drv *hWFIDrv, struct cfg_param_val *pstrCfgParamVal);
-
-/**
- *  @brief              gets configuration wids values
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *                              WID value
- *  @param[in]	WID,
- *  @return             Error code indicating success/failure
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 hif_get_cfg(struct host_if_drv *hWFIDrv, u16 u16WID, u16 *pu16WID_Value);
-/*****************************************************************************/
-/*							Notification Functions							 */
-/*****************************************************************************/
-/**
- *  @brief              host interface initialization function
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_init(struct net_device *dev, struct host_if_drv **phWFIDrv);
-
-/**
- *  @brief              host interface initialization function
- *  @details
- *  @param[in,out] handle to the wifi driver,
- *  @note
- *  @author		zsalah
- *  @date		8 March 2012
- *  @version		1.0
- */
-s32 host_int_deinit(struct host_if_drv *hWFIDrv);
-
-
-/*!
- *  @fn		s32 host_int_add_beacon(WILC_WFIDrvHandle hWFIDrv,u8 u8Index)
- *  @brief		Sends a beacon to the firmware to be transmitted over the air
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	u32Interval	Beacon Interval. Period between two successive beacons on air
- *  @param[in]	u32DTIMPeriod DTIM Period. Indicates how many Beacon frames
- *              (including the current frame) appear before the next DTIM
- *  @param[in]	u32Headlen	Length of the head buffer in bytes
- *  @param[in]	pu8Head		Pointer to the beacon's head buffer. Beacon's head
- *		is the part from the beacon's start till the TIM element, NOT including the TIM
- *  @param[in]	u32Taillen	Length of the tail buffer in bytes
- *  @param[in]	pu8Tail		Pointer to the beacon's tail buffer. Beacon's tail
- *		starts just after the TIM inormation element
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		10 Julys 2012
- *  @version		1.0 Description
- *
- */
-s32 host_int_add_beacon(struct host_if_drv *hWFIDrv, u32 u32Interval,
-				u32 u32DTIMPeriod,
-				u32 u32HeadLen, u8 *pu8Head,
-				u32 u32TailLen, u8 *pu8tail);
-
-
-/*!
- *  @fn		s32 host_int_del_beacon(WILC_WFIDrvHandle hWFIDrv)
- *  @brief		Removes the beacon and stops trawilctting it over the air
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		10 Julys 2012
- *  @version		1.0 Description
- */
-s32 host_int_del_beacon(struct host_if_drv *hWFIDrv);
-
-/*!
- *  @fn		s32 host_int_add_station(WILC_WFIDrvHandle hWFIDrv,
- *					 struct add_sta_param *pstrStaParams)
- *  @brief		Notifies the firmware with a new associated stations
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	pstrStaParams	Station's parameters
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		12 July 2012
- *  @version		1.0 Description
- */
-s32 host_int_add_station(struct host_if_drv *hWFIDrv,
-			 struct add_sta_param *pstrStaParams);
-
-/*!
- *  @fn		s32 host_int_del_allstation(WILC_WFIDrvHandle hWFIDrv, const u8* pu8MacAddr)
- *  @brief		Deauthenticates clients when group is terminating
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	pu8MacAddr	Station's mac address
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Mai Daftedar
- *  @date		09 April 2014
- *  @version		1.0 Description
- */
-s32 host_int_del_allstation(struct host_if_drv *hWFIDrv, u8 pu8MacAddr[][ETH_ALEN]);
-
-/*!
- *  @fn		s32 host_int_del_station(WILC_WFIDrvHandle hWFIDrv, u8* pu8MacAddr)
- *  @brief		Notifies the firmware with a new deleted station
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	pu8MacAddr	Station's mac address
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		15 July 2012
- *  @version		1.0 Description
- */
-s32 host_int_del_station(struct host_if_drv *hWFIDrv, const u8 *pu8MacAddr);
-
-/*!
- *  @fn		s32 host_int_edit_station(WILC_WFIDrvHandle hWFIDrv,
- *					  struct add_sta_param *pstrStaParams)
- *  @brief		Notifies the firmware with new parameters of an already associated station
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	pstrStaParams	Station's parameters
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		15 July 2012
- *  @version		1.0 Description
- */
-s32 host_int_edit_station(struct host_if_drv *hWFIDrv,
-			  struct add_sta_param *pstrStaParams);
-
-/*!
- *  @fn		s32 host_int_set_power_mgmt(WILC_WFIDrvHandle hWFIDrv, bool bIsEnabled, u32 u32Timeout)
- *  @brief		Set the power management mode to enabled or disabled
- *  @details
- *  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	bIsEnabled	TRUE if enabled, FALSE otherwise
- *  @param[in]	u32Timeout	A timeout value of -1 allows the driver to adjust
- *							the dynamic ps timeout value
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		24 November 2012
- *  @version		1.0 Description
- */
-s32 host_int_set_power_mgmt(struct host_if_drv *hWFIDrv, bool bIsEnabled, u32 u32Timeout);
-/*  @param[in,out]	hWFIDrv		handle to the wifi driver
- *  @param[in]	bIsEnabled	TRUE if enabled, FALSE otherwise
- *  @param[in]	u8count		count of mac address entries in the filter table
- *
- *  @return	0 for Success, error otherwise
- *  @todo
- *  @sa
- *  @author		Adham Abozaeid
- *  @date		24 November 2012
- *  @version		1.0 Description
- */
-s32 host_int_setup_multicast_filter(struct host_if_drv *hWFIDrv, bool bIsEnabled, u32 u32count);
-/**
- *  @brief           host_int_setup_ipaddress
- *  @details       set IP address on firmware
- *  @param[in]
- *  @return         Error code.
- *  @author		Abdelrahman Sobhy
- *  @date
- *  @version	1.0
- */
-s32 host_int_setup_ipaddress(struct host_if_drv *hWFIDrv, u8 *pu8IPAddr, u8 idx);
-
-
-/**
- *  @brief           host_int_delBASession
- *  @details       Delete single Rx BA session
- *  @param[in]
- *  @return         Error code.
- *  @author		Abdelrahman Sobhy
- *  @date
- *  @version	1.0
- */
-s32 host_int_delBASession(struct host_if_drv *hWFIDrv, char *pBSSID, char TID);
-
-/**
- *  @brief           host_int_delBASession
- *  @details       Delete all Rx BA session
- *  @param[in]
- *  @return         Error code.
- *  @author		Abdelrahman Sobhy
- *  @date
- *  @version	1.0
- */
-s32 host_int_del_All_Rx_BASession(struct host_if_drv *hWFIDrv, char *pBSSID, char TID);
-
-
-/**
- *  @brief           host_int_get_ipaddress
- *  @details       get IP address on firmware
- *  @param[in]
- *  @return         Error code.
- *  @author		Abdelrahman Sobhy
- *  @date
- *  @version	1.0
- */
-s32 host_int_get_ipaddress(struct host_if_drv *hWFIDrv, u8 *pu8IPAddr, u8 idx);
-
-/**
- *  @brief           host_int_remain_on_channel
- *  @details
- *  @param[in]
- *  @return         Error code.
- *  @author
- *  @date
- *  @version	1.0
- */
-s32 host_int_remain_on_channel(struct host_if_drv *hWFIDrv, u32 u32SessionID, u32 u32duration, u16 chan, wilc_remain_on_chan_expired RemainOnChanExpired, wilc_remain_on_chan_ready RemainOnChanReady, void *pvUserArg);
-
-/**
- *  @brief              host_int_ListenStateExpired
- *  @details
- *  @param[in]          Handle to wifi driver
- *                              Duration to remain on channel
- *                              Channel to remain on
- *                              Pointer to fn to be called on receive frames in listen state
- *                              Pointer to remain-on-channel expired fn
- *                              Priv
- *  @return             Error code.
- *  @author
- *  @date
- *  @version		1.0
- */
-s32 host_int_ListenStateExpired(struct host_if_drv *hWFIDrv, u32 u32SessionID);
-
-/**
- *  @brief           host_int_frame_register
- *  @details
- *  @param[in]
- *  @return         Error code.
- *  @author
- *  @date
- *  @version	1.0
- */
-s32 host_int_frame_register(struct host_if_drv *hWFIDrv, u16 u16FrameType, bool bReg);
-/**
- *  @brief           host_int_set_wfi_drv_handler
- *  @details
- *  @param[in]
- *  @return         Error code.
- *  @author
- *  @date
- *  @version	1.0
- */
-int host_int_set_wfi_drv_handler(struct host_if_drv *address);
-int host_int_set_operation_mode(struct host_if_drv *wfi_drv, u32 mode);
-
-static s32 Handle_ScanDone(struct host_if_drv *drvHandler, enum scan_event enuEvent);
-
-void host_int_freeJoinParams(void *pJoinParams);
-
-s32 host_int_get_statistics(struct host_if_drv *hWFIDrv, struct rf_info *pstrStatistics);
+struct wilc_vif;
+s32 wilc_remove_key(struct host_if_drv *hWFIDrv, const u8 *pu8StaAddress);
+int wilc_remove_wep_key(struct wilc_vif *vif, u8 index);
+int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index);
+int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len,
+			     u8 index);
+int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len,
+			    u8 index, u8 mode, enum AUTHTYPE auth_type);
+s32 wilc_add_ptk(struct wilc_vif *vif, const u8 *pu8Ptk, u8 u8PtkKeylen,
+		 const u8 *mac_addr, const u8 *pu8RxMic, const u8 *pu8TxMic,
+		 u8 mode, u8 u8Ciphermode, u8 u8Idx);
+s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac,
+			   u32 *pu32InactiveTime);
+s32 wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *pu8RxGtk, u8 u8GtkKeylen,
+		    u8 u8KeyIdx, u32 u32KeyRSClen, const u8 *KeyRSC,
+		    const u8 *pu8RxMic, const u8 *pu8TxMic, u8 mode,
+		    u8 u8Ciphermode);
+s32 wilc_add_tx_gtk(struct host_if_drv *hWFIDrv, u8 u8KeyLen,
+			u8 *pu8TxGtk, u8 u8KeyIdx);
+s32 wilc_set_pmkid_info(struct wilc_vif *vif,
+			struct host_if_pmkid_attr *pu8PmkidInfoArray);
+s32 wilc_get_mac_address(struct wilc_vif *vif, u8 *pu8MacAddress);
+s32 wilc_set_mac_address(struct wilc_vif *vif, u8 *pu8MacAddress);
+int wilc_wait_msg_queue_idle(void);
+s32 wilc_set_start_scan_req(struct host_if_drv *hWFIDrv, u8 scanSource);
+s32 wilc_set_join_req(struct wilc_vif *vif, u8 *pu8bssid, const u8 *pu8ssid,
+		      size_t ssidLen, const u8 *pu8IEs, size_t IEsLen,
+		      wilc_connect_result pfConnectResult, void *pvUserArg,
+		      u8 u8security, enum AUTHTYPE tenuAuth_type,
+		      u8 u8channel, void *pJoinParams);
+s32 wilc_flush_join_req(struct wilc_vif *vif);
+s32 wilc_disconnect(struct wilc_vif *vif, u16 u16ReasonCode);
+int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel);
+s32 wilc_get_rssi(struct wilc_vif *vif, s8 *ps8Rssi);
+s32 wilc_scan(struct wilc_vif *vif, u8 u8ScanSource, u8 u8ScanType,
+	      u8 *pu8ChnlFreqList, u8 u8ChnlListLen, const u8 *pu8IEs,
+	      size_t IEsLen, wilc_scan_result ScanResult, void *pvUserArg,
+	      struct hidden_network *pstrHiddenNetwork);
+s32 wilc_hif_set_cfg(struct wilc_vif *vif,
+		     struct cfg_param_val *pstrCfgParamVal);
+s32 wilc_init(struct net_device *dev, struct host_if_drv **phWFIDrv);
+s32 wilc_deinit(struct wilc_vif *vif);
+s32 wilc_add_beacon(struct wilc_vif *vif, u32 u32Interval, u32 u32DTIMPeriod,
+		    u32 u32HeadLen, u8 *pu8Head, u32 u32TailLen, u8 *pu8Tail);
+int wilc_del_beacon(struct wilc_vif *vif);
+int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param);
+s32 wilc_del_allstation(struct wilc_vif *vif, u8 pu8MacAddr[][ETH_ALEN]);
+int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr);
+s32 wilc_edit_station(struct wilc_vif *vif,
+		      struct add_sta_param *pstrStaParams);
+s32 wilc_set_power_mgmt(struct wilc_vif *vif, bool bIsEnabled, u32 u32Timeout);
+s32 wilc_setup_multicast_filter(struct wilc_vif *vif, bool bIsEnabled,
+				u32 u32count);
+s32 wilc_setup_ipaddress(struct wilc_vif *vif, u8 *u16ipadd, u8 idx);
+s32 wilc_del_all_rx_ba_session(struct wilc_vif *vif, char *pBSSID, char TID);
+s32 wilc_remain_on_channel(struct wilc_vif *vif, u32 u32SessionID,
+			   u32 u32duration, u16 chan,
+			   wilc_remain_on_chan_expired RemainOnChanExpired,
+			   wilc_remain_on_chan_ready RemainOnChanReady,
+			   void *pvUserArg);
+s32 wilc_listen_state_expired(struct wilc_vif *vif, u32 u32SessionID);
+s32 wilc_frame_register(struct wilc_vif *vif, u16 u16FrameType, bool bReg);
+int wilc_set_wfi_drv_handler(struct wilc_vif *vif, int index);
+int wilc_set_operation_mode(struct wilc_vif *vif, u32 mode);
+
+void wilc_free_join_params(void *pJoinParams);
+
+s32 wilc_get_statistics(struct wilc_vif *vif, struct rf_info *pstrStatistics);
+void wilc_resolve_disconnect_aberration(struct wilc_vif *vif);
+int wilc_get_vif_idx(struct wilc_vif *vif);
+
+extern bool wilc_optaining_ip;
+extern u8 wilc_connected_ssid[6];
+extern u8 wilc_multicast_mac_addr_list[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN];
+
+extern int wilc_connecting;
+extern u8 wilc_initialized;
+extern struct timer_list wilc_during_ip_timer;
 
 #endif
diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c
index 450af1b77f99..e550027645b7 100644
--- a/drivers/staging/wilc1000/linux_mon.c
+++ b/drivers/staging/wilc1000/linux_mon.c
@@ -26,12 +26,9 @@ struct wilc_wfi_radiotap_cb_hdr {
 
 static struct net_device *wilc_wfi_mon; /* global monitor netdev */
 
-extern int  mac_xmit(struct sk_buff *skb, struct net_device *dev);
-
-
-u8 srcAdd[6];
-u8 bssid[6];
-u8 broadcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+static u8 srcAdd[6];
+static u8 bssid[6];
+static u8 broadcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 /**
  *  @brief      WILC_WFI_monitor_rx
  *  @details
@@ -195,7 +192,7 @@ static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
 	mgmt_tx->size = len;
 
 	memcpy(mgmt_tx->buff, buf, len);
-	wilc_wlan_txq_add_mgmt_pkt(mgmt_tx, mgmt_tx->buff, mgmt_tx->size,
+	wilc_wlan_txq_add_mgmt_pkt(dev, mgmt_tx, mgmt_tx->buff, mgmt_tx->size,
 				   mgmt_tx_complete);
 
 	netif_wake_queue(dev);
@@ -298,7 +295,7 @@ static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb,
 		mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
 		dev_kfree_skb(skb);
 	} else
-		ret = mac_xmit(skb, mon_priv->real_ndev);
+		ret = wilc_mac_xmit(skb, mon_priv->real_ndev);
 
 	return ret;
 }
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 2a5b36fd8b48..54fe9d74b780 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -23,61 +23,8 @@
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
 
-#include <linux/version.h>
 #include <linux/semaphore.h>
 
-#ifdef WILC_SDIO
-#include "linux_wlan_sdio.h"
-#else
-#include "linux_wlan_spi.h"
-#endif
-
-#if defined(CUSTOMER_PLATFORM)
-/*
- TODO : Write power control functions as customer platform.
- */
-#else
-
- #define _linux_wlan_device_power_on()		{}
- #define _linux_wlan_device_power_off()		{}
-
- #define _linux_wlan_device_detection()		{}
- #define _linux_wlan_device_removal()		{}
-#endif
-
-extern bool g_obtainingIP;
-extern void resolve_disconnect_aberration(void *drvHandler);
-extern u8 gau8MulticastMacAddrList[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN];
-extern struct timer_list hDuringIpTimer;
-
-static int linux_wlan_device_power(int on_off)
-{
-	PRINT_D(INIT_DBG, "linux_wlan_device_power.. (%d)\n", on_off);
-
-	if (on_off) {
-		_linux_wlan_device_power_on();
-	} else {
-		_linux_wlan_device_power_off();
-	}
-
-	return 0;
-}
-
-static int linux_wlan_device_detection(int on_off)
-{
-	PRINT_D(INIT_DBG, "linux_wlan_device_detection.. (%d)\n", on_off);
-
-#ifdef WILC_SDIO
-	if (on_off) {
-		_linux_wlan_device_detection();
-	} else {
-		_linux_wlan_device_removal();
-	}
-#endif
-
-	return 0;
-}
-
 static int dev_state_ev_handler(struct notifier_block *this, unsigned long event, void *ptr);
 
 static struct notifier_block g_dev_notifier = {
@@ -86,40 +33,24 @@ static struct notifier_block g_dev_notifier = {
 
 #define IRQ_WAIT	1
 #define IRQ_NO_WAIT	0
-/*
- *      to sync between mac_close and module exit.
- *      don't initialize or de-initialize from init/deinitlocks
- *      to be initialized from module wilc_netdev_init and
- *      deinitialized from mdoule_exit
- */
 static struct semaphore close_exit_sync;
 
 static int wlan_deinit_locks(struct net_device *dev);
 static void wlan_deinitialize_threads(struct net_device *dev);
-extern void WILC_WFI_monitor_rx(u8 *buff, u32 size);
-extern void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size);
 
 static void linux_wlan_tx_complete(void *priv, int status);
 static int  mac_init_fn(struct net_device *ndev);
-int  mac_xmit(struct sk_buff *skb, struct net_device *dev);
-int  mac_open(struct net_device *ndev);
-int  mac_close(struct net_device *ndev);
 static struct net_device_stats *mac_stats(struct net_device *dev);
 static int  mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd);
 static void wilc_set_multicast_list(struct net_device *dev);
 
-/*
- * for now - in frmw_to_linux there should be private data to be passed to it
- * and this data should be pointer to net device
- */
-struct wilc *g_linux_wlan;
-bool bEnablePS = true;
+bool wilc_enable_ps = true;
 
 static const struct net_device_ops wilc_netdev_ops = {
 	.ndo_init = mac_init_fn,
-	.ndo_open = mac_open,
-	.ndo_stop = mac_close,
-	.ndo_start_xmit = mac_xmit,
+	.ndo_open = wilc_mac_open,
+	.ndo_stop = wilc_mac_close,
+	.ndo_start_xmit = wilc_mac_xmit,
 	.ndo_do_ioctl = mac_ioctl,
 	.ndo_get_stats = mac_stats,
 	.ndo_set_rx_mode  = wilc_set_multicast_list,
@@ -130,130 +61,129 @@ static int dev_state_ev_handler(struct notifier_block *this, unsigned long event
 {
 	struct in_ifaddr *dev_iface = (struct in_ifaddr *)ptr;
 	struct wilc_priv *priv;
-	struct host_if_drv *pstrWFIDrv;
+	struct host_if_drv *hif_drv;
 	struct net_device *dev;
-	u8 *pIP_Add_buff;
-	perInterface_wlan_t *nic;
+	u8 *ip_addr_buf;
+	struct wilc_vif *vif;
 	u8 null_ip[4] = {0};
 	char wlan_dev_name[5] = "wlan0";
 
-	if (dev_iface == NULL || dev_iface->ifa_dev == NULL || dev_iface->ifa_dev->dev == NULL)	{
+	if (!dev_iface || !dev_iface->ifa_dev || !dev_iface->ifa_dev->dev) {
 		PRINT_D(GENERIC_DBG, "dev_iface = NULL\n");
 		return NOTIFY_DONE;
 	}
 
-	if ((memcmp(dev_iface->ifa_label, "wlan0", 5)) && (memcmp(dev_iface->ifa_label, "p2p0", 4))) {
+	if (memcmp(dev_iface->ifa_label, "wlan0", 5) &&
+	    memcmp(dev_iface->ifa_label, "p2p0", 4)) {
 		PRINT_D(GENERIC_DBG, "Interface is neither WLAN0 nor P2P0\n");
 		return NOTIFY_DONE;
 	}
 
 	dev  = (struct net_device *)dev_iface->ifa_dev->dev;
-	if (dev->ieee80211_ptr == NULL || dev->ieee80211_ptr->wiphy == NULL) {
+	if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy) {
 		PRINT_D(GENERIC_DBG, "No Wireless registerd\n");
 		return NOTIFY_DONE;
 	}
 	priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
-	if (priv == NULL) {
+	if (!priv) {
 		PRINT_D(GENERIC_DBG, "No Wireless Priv\n");
 		return NOTIFY_DONE;
 	}
-	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
-	nic = netdev_priv(dev);
-	if (nic == NULL || pstrWFIDrv == NULL) {
+	hif_drv = (struct host_if_drv *)priv->hWILCWFIDrv;
+	vif = netdev_priv(dev);
+	if (!vif || !hif_drv) {
 		PRINT_D(GENERIC_DBG, "No Wireless Priv\n");
 		return NOTIFY_DONE;
 	}
 
-	PRINT_INFO(GENERIC_DBG, "dev_state_ev_handler +++\n"); /* tony */
+	PRINT_INFO(GENERIC_DBG, "dev_state_ev_handler +++\n");
 
 	switch (event) {
 	case NETDEV_UP:
-		PRINT_D(GENERIC_DBG, "dev_state_ev_handler event=NETDEV_UP %p\n", dev);       /* tony */
+		PRINT_D(GENERIC_DBG, "dev_state_ev_handler event=NETDEV_UP %p\n", dev);
 
 		PRINT_INFO(GENERIC_DBG, "\n ============== IP Address Obtained ===============\n\n");
 
-		/*If we are in station mode or client mode*/
-		if (nic->iftype == STATION_MODE || nic->iftype == CLIENT_MODE) {
-			pstrWFIDrv->IFC_UP = 1;
-			g_obtainingIP = false;
-			del_timer(&hDuringIpTimer);
+		if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
+			hif_drv->IFC_UP = 1;
+			wilc_optaining_ip = false;
+			del_timer(&wilc_during_ip_timer);
 			PRINT_D(GENERIC_DBG, "IP obtained , enable scan\n");
 		}
 
-		if (bEnablePS)
-			host_int_set_power_mgmt(pstrWFIDrv, 1, 0);
+		if (wilc_enable_ps)
+			wilc_set_power_mgmt(vif, 1, 0);
 
 		PRINT_D(GENERIC_DBG, "[%s] Up IP\n", dev_iface->ifa_label);
 
-		pIP_Add_buff = (char *) (&(dev_iface->ifa_address));
-		PRINT_D(GENERIC_DBG, "IP add=%d:%d:%d:%d\n", pIP_Add_buff[0], pIP_Add_buff[1], pIP_Add_buff[2], pIP_Add_buff[3]);
-		host_int_setup_ipaddress(pstrWFIDrv, pIP_Add_buff, nic->u8IfIdx);
+		ip_addr_buf = (char *)&dev_iface->ifa_address;
+		PRINT_D(GENERIC_DBG, "IP add=%d:%d:%d:%d\n",
+			ip_addr_buf[0], ip_addr_buf[1],
+			ip_addr_buf[2], ip_addr_buf[3]);
+		wilc_setup_ipaddress(vif, ip_addr_buf, vif->u8IfIdx);
 
 		break;
 
 	case NETDEV_DOWN:
-		PRINT_D(GENERIC_DBG, "dev_state_ev_handler event=NETDEV_DOWN %p\n", dev);               /* tony */
+		PRINT_D(GENERIC_DBG, "dev_state_ev_handler event=NETDEV_DOWN %p\n", dev);
 
 		PRINT_INFO(GENERIC_DBG, "\n ============== IP Address Released ===============\n\n");
-		if (nic->iftype == STATION_MODE || nic->iftype == CLIENT_MODE) {
-			pstrWFIDrv->IFC_UP = 0;
-			g_obtainingIP = false;
+		if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
+			hif_drv->IFC_UP = 0;
+			wilc_optaining_ip = false;
 		}
 
 		if (memcmp(dev_iface->ifa_label, wlan_dev_name, 5) == 0)
-			host_int_set_power_mgmt(pstrWFIDrv, 0, 0);
+			wilc_set_power_mgmt(vif, 0, 0);
 
-		resolve_disconnect_aberration(pstrWFIDrv);
+		wilc_resolve_disconnect_aberration(vif);
 
 		PRINT_D(GENERIC_DBG, "[%s] Down IP\n", dev_iface->ifa_label);
 
-		pIP_Add_buff = null_ip;
-		PRINT_D(GENERIC_DBG, "IP add=%d:%d:%d:%d\n", pIP_Add_buff[0], pIP_Add_buff[1], pIP_Add_buff[2], pIP_Add_buff[3]);
+		ip_addr_buf = null_ip;
+		PRINT_D(GENERIC_DBG, "IP add=%d:%d:%d:%d\n",
+			ip_addr_buf[0], ip_addr_buf[1],
+			ip_addr_buf[2], ip_addr_buf[3]);
 
-		host_int_setup_ipaddress(pstrWFIDrv, pIP_Add_buff, nic->u8IfIdx);
+		wilc_setup_ipaddress(vif, ip_addr_buf, vif->u8IfIdx);
 
 		break;
 
 	default:
-		PRINT_INFO(GENERIC_DBG, "dev_state_ev_handler event=default\n");        /* tony */
+		PRINT_INFO(GENERIC_DBG, "dev_state_ev_handler event=default\n");
 		PRINT_INFO(GENERIC_DBG, "[%s] unknown dev event: %lu\n", dev_iface->ifa_label, event);
 
 		break;
 	}
 
 	return NOTIFY_DONE;
-
 }
 
-#if (defined WILC_SPI) || (defined WILC_SDIO_IRQ_GPIO)
 static irqreturn_t isr_uh_routine(int irq, void *user_data)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 	struct net_device *dev = (struct net_device *)user_data;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 	PRINT_D(INT_DBG, "Interrupt received UH\n");
 
-	/*While mac is closing cacncel the handling of any interrupts received*/
 	if (wilc->close) {
 		PRINT_ER("Driver is CLOSING: Can't handle UH interrupt\n");
 		return IRQ_HANDLED;
 	}
 	return IRQ_WAKE_THREAD;
 }
-#endif
 
-irqreturn_t isr_bh_routine(int irq, void *userdata)
+static irqreturn_t isr_bh_routine(int irq, void *userdata)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(userdata);
-	wilc = nic->wilc;
+	vif = netdev_priv(userdata);
+	wilc = vif->wilc;
 
-	/*While mac is closing cacncel the handling of any interrupts received*/
 	if (wilc->close) {
 		PRINT_ER("Driver is CLOSING: Can't handle BH interrupt\n");
 		return IRQ_HANDLED;
@@ -265,154 +195,131 @@ irqreturn_t isr_bh_routine(int irq, void *userdata)
 	return IRQ_HANDLED;
 }
 
-#if (defined WILC_SPI) || (defined WILC_SDIO_IRQ_GPIO)
 static int init_irq(struct net_device *dev)
 {
 	int ret = 0;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
 
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
-
-	/*initialize GPIO and register IRQ num*/
-	/*GPIO request*/
-	if ((gpio_request(GPIO_NUM, "WILC_INTR") == 0) &&
-	    (gpio_direction_input(GPIO_NUM) == 0)) {
-#if defined(CUSTOMER_PLATFORM)
-/*
- TODO : save the registerd irq number to the private wilc context in kernel.
- *
- * ex) nic->dev_irq_num = gpio_to_irq(GPIO_NUM);
- */
-#else
-		wl->dev_irq_num = gpio_to_irq(GPIO_NUM);
-#endif
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
+
+	if ((gpio_request(wl->gpio, "WILC_INTR") == 0) &&
+	    (gpio_direction_input(wl->gpio) == 0)) {
+		wl->dev_irq_num = gpio_to_irq(wl->gpio);
 	} else {
 		ret = -1;
 		PRINT_ER("could not obtain gpio for WILC_INTR\n");
 	}
 
-	if ((ret != -1) && (request_threaded_irq(wl->dev_irq_num, isr_uh_routine, isr_bh_routine,
-						  IRQF_TRIGGER_LOW | IRQF_ONESHOT,               /*Without IRQF_ONESHOT the uh will remain kicked in and dont gave a chance to bh*/
-						  "WILC_IRQ", dev)) < 0) {
-
-		PRINT_ER("Failed to request IRQ for GPIO: %d\n", GPIO_NUM);
+	if (ret != -1 && request_threaded_irq(wl->dev_irq_num,
+					      isr_uh_routine,
+					      isr_bh_routine,
+					      IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+					      "WILC_IRQ", dev) < 0) {
+		PRINT_ER("Failed to request IRQ for GPIO: %d\n", wl->gpio);
+		gpio_free(wl->gpio);
 		ret = -1;
 	} else {
-
 		PRINT_D(INIT_DBG, "IRQ request succeeded IRQ-NUM= %d on GPIO: %d\n",
-			wl->dev_irq_num, GPIO_NUM);
+			wl->dev_irq_num, wl->gpio);
 	}
 
 	return ret;
 }
-#endif
 
 static void deinit_irq(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-#if (defined WILC_SPI) || (defined WILC_SDIO_IRQ_GPIO)
 	/* Deintialize IRQ */
-	if (&wilc->dev_irq_num != 0) {
+	if (wilc->dev_irq_num) {
 		free_irq(wilc->dev_irq_num, wilc);
-
-		gpio_free(GPIO_NUM);
+		gpio_free(wilc->gpio);
 	}
-#endif
 }
 
-/*
- *      OS functions
- */
-void linux_wlan_dbg(u8 *buff)
+void wilc_dbg(u8 *buff)
 {
 	PRINT_D(INIT_DBG, "%d\n", *buff);
 }
 
-int linux_wlan_lock_timeout(void *vp, u32 timeout)
+int wilc_lock_timeout(struct wilc *nic, void *vp, u32 timeout)
 {
+	/* FIXME: replace with mutex_lock or wait_for_completion */
 	int error = -1;
 
 	PRINT_D(LOCK_DBG, "Locking %p\n", vp);
-	if (vp != NULL)
-		error = down_timeout((struct semaphore *)vp, msecs_to_jiffies(timeout));
+	if (vp)
+		error = down_timeout((struct semaphore *)vp,
+				     msecs_to_jiffies(timeout));
 	else
 		PRINT_ER("Failed, mutex is NULL\n");
 	return error;
 }
 
-void linux_wlan_mac_indicate(struct wilc *wilc, int flag)
+void wilc_mac_indicate(struct wilc *wilc, int flag)
 {
-	/*I have to do it that way becuase there is no mean to encapsulate device pointer
-	 * as a parameter
-	 */
 	int status;
 
 	if (flag == WILC_MAC_INDICATE_STATUS) {
-		wilc_wlan_cfg_get_val(WID_STATUS, (unsigned char *)&status, 4);
+		wilc_wlan_cfg_get_val(WID_STATUS,
+				      (unsigned char *)&status, 4);
 		if (wilc->mac_status == WILC_MAC_STATUS_INIT) {
 			wilc->mac_status = status;
 			up(&wilc->sync_event);
 		} else {
 			wilc->mac_status = status;
 		}
-
-		if (wilc->mac_status == WILC_MAC_STATUS_CONNECT) {        /* Connect */
-		}
-
 	} else if (flag == WILC_MAC_INDICATE_SCAN) {
 		PRINT_D(GENERIC_DBG, "Scanning ...\n");
-
 	}
-
 }
 
-struct net_device *GetIfHandler(struct wilc *wilc, u8 *pMacHeader)
+static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
 {
-	u8 *Bssid, *Bssid1;
+	u8 *bssid, *bssid1;
 	int i = 0;
 
-	Bssid  = pMacHeader + 10;
-	Bssid1 = pMacHeader + 4;
+	bssid = mac_header + 10;
+	bssid1 = mac_header + 4;
 
 	for (i = 0; i < wilc->vif_num; i++)
-		if (!memcmp(Bssid1, wilc->vif[i].bssid, ETH_ALEN) ||
-		    !memcmp(Bssid, wilc->vif[i].bssid, ETH_ALEN))
-			return wilc->vif[i].ndev;
+		if (!memcmp(bssid1, wilc->vif[i]->bssid, ETH_ALEN) ||
+		    !memcmp(bssid, wilc->vif[i]->bssid, ETH_ALEN))
+			return wilc->vif[i]->ndev;
 
 	PRINT_INFO(INIT_DBG, "Invalide handle\n");
 	for (i = 0; i < 25; i++)
-		PRINT_D(INIT_DBG, "%02x ", pMacHeader[i]);
-	Bssid  = pMacHeader + 18;
-	Bssid1 = pMacHeader + 12;
+		PRINT_D(INIT_DBG, "%02x ", mac_header[i]);
+	bssid = mac_header + 18;
+	bssid1 = mac_header + 12;
 	for (i = 0; i < wilc->vif_num; i++)
-		if (!memcmp(Bssid1, wilc->vif[i].bssid, ETH_ALEN) ||
-		    !memcmp(Bssid, wilc->vif[i].bssid, ETH_ALEN))
-			return wilc->vif[i].ndev;
+		if (!memcmp(bssid1, wilc->vif[i]->bssid, ETH_ALEN) ||
+		    !memcmp(bssid, wilc->vif[i]->bssid, ETH_ALEN))
+			return wilc->vif[i]->ndev;
 
 	PRINT_INFO(INIT_DBG, "\n");
 	return NULL;
 }
 
-int linux_wlan_set_bssid(struct net_device *wilc_netdev, u8 *pBSSID)
+int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid)
 {
 	int i = 0;
 	int ret = -1;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(wilc_netdev);
-	wilc = nic->wilc;
+	vif = netdev_priv(wilc_netdev);
+	wilc = vif->wilc;
 
 	for (i = 0; i < wilc->vif_num; i++)
-		if (wilc->vif[i].ndev == wilc_netdev) {
-			memcpy(wilc->vif[i].bssid, pBSSID, 6);
+		if (wilc->vif[i]->ndev == wilc_netdev) {
+			memcpy(wilc->vif[i]->bssid, bssid, 6);
 			ret = 0;
 			break;
 		}
@@ -420,15 +327,14 @@ int linux_wlan_set_bssid(struct net_device *wilc_netdev, u8 *pBSSID)
 	return ret;
 }
 
-/*Function to get number of connected interfaces*/
-int linux_wlan_get_num_conn_ifcs(void)
+int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
 {
 	u8 i = 0;
 	u8 null_bssid[6] = {0};
 	u8 ret_val = 0;
 
-	for (i = 0; i < g_linux_wlan->vif_num; i++)
-		if (memcmp(g_linux_wlan->vif[i].bssid, null_bssid, 6))
+	for (i = 0; i < wilc->vif_num; i++)
+		if (memcmp(wilc->vif[i]->bssid, null_bssid, 6))
 			ret_val++;
 
 	return ret_val;
@@ -439,7 +345,7 @@ int linux_wlan_get_num_conn_ifcs(void)
 static int linux_wlan_txq_task(void *vp)
 {
 	int ret, txq_count;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
 	struct net_device *dev = vp;
 #if defined USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS
@@ -451,20 +357,16 @@ static int linux_wlan_txq_task(void *vp)
 	int backoff_weight = TX_BACKOFF_WEIGHT_MIN;
 #endif
 
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
 
-	/* inform wilc1000_wlan_init that TXQ task is started. */
 	up(&wl->txq_thread_started);
 	while (1) {
-
 		PRINT_D(TX_DBG, "txq_task Taking a nap :)\n");
 		down(&wl->txq_event);
-		/* wait_for_completion(&pd->txq_event); */
 		PRINT_D(TX_DBG, "txq_task Who waked me up :$\n");
 
 		if (wl->close) {
-			/*Unlock the mutex in the mac_close function to indicate the exiting of the TX thread */
 			up(&wl->txq_thread_started);
 
 			while (!kthread_should_stop())
@@ -479,23 +381,19 @@ static int linux_wlan_txq_task(void *vp)
 #else
 		do {
 			ret = wilc_wlan_handle_txq(dev, &txq_count);
-			if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD /* && netif_queue_stopped(pd->wilc_netdev)*/) {
+			if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
 				PRINT_D(TX_DBG, "Waking up queue\n");
-				/* netif_wake_queue(pd->wilc_netdev); */
-				if (netif_queue_stopped(wl->vif[0].ndev))
-					netif_wake_queue(wl->vif[0].ndev);
-				if (netif_queue_stopped(wl->vif[1].ndev))
-					netif_wake_queue(wl->vif[1].ndev);
+
+				if (netif_queue_stopped(wl->vif[0]->ndev))
+					netif_wake_queue(wl->vif[0]->ndev);
+				if (netif_queue_stopped(wl->vif[1]->ndev))
+					netif_wake_queue(wl->vif[1]->ndev);
 			}
 
-			if (ret == WILC_TX_ERR_NO_BUF) { /* failed to allocate buffers in chip. */
+			if (ret == WILC_TX_ERR_NO_BUF) {
 				do {
-					/* Back off from sending packets for some time. */
-					/* schedule_timeout will allow RX task to run and free buffers.*/
-					/* set_current_state(TASK_UNINTERRUPTIBLE); */
-					/* timeout = schedule_timeout(timeout); */
 					msleep(TX_BACKOFF_WEIGHT_UNIT_MS << backoff_weight);
-				} while (/*timeout*/ 0);
+				} while (0);
 				backoff_weight += TX_BACKOFF_WEIGHT_INCR_STEP;
 				if (backoff_weight > TX_BACKOFF_WEIGHT_MAX)
 					backoff_weight = TX_BACKOFF_WEIGHT_MAX;
@@ -506,376 +404,326 @@ static int linux_wlan_txq_task(void *vp)
 						backoff_weight = TX_BACKOFF_WEIGHT_MIN;
 				}
 			}
-			/*TODO: drop packets after a certain time/number of retry count. */
-		} while (ret == WILC_TX_ERR_NO_BUF && !wl->close); /* retry sending packets if no more buffers in chip. */
+		} while (ret == WILC_TX_ERR_NO_BUF && !wl->close);
 #endif
 	}
 	return 0;
 }
 
-void linux_wlan_rx_complete(void)
+void wilc_rx_complete(struct wilc *nic)
 {
 	PRINT_D(RX_DBG, "RX completed\n");
 }
 
-int linux_wlan_get_firmware(perInterface_wlan_t *p_nic)
+int wilc_wlan_get_firmware(struct net_device *dev)
 {
-
-	perInterface_wlan_t *nic = p_nic;
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 	int ret = 0;
 	const struct firmware *wilc_firmware;
 	char *firmware;
 
-	if (nic->iftype == AP_MODE)
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
+
+	if (vif->iftype == AP_MODE) {
 		firmware = AP_FIRMWARE;
-	else if (nic->iftype == STATION_MODE)
+	} else if (vif->iftype == STATION_MODE) {
 		firmware = STA_FIRMWARE;
-
-	else {
+	} else {
 		PRINT_D(INIT_DBG, "Get P2P_CONCURRENCY_FIRMWARE\n");
 		firmware = P2P_CONCURRENCY_FIRMWARE;
 	}
 
-	if (nic == NULL) {
-		PRINT_ER("NIC is NULL\n");
+	if (!vif) {
+		PRINT_ER("vif is NULL\n");
 		goto _fail_;
 	}
 
-	if (&nic->wilc_netdev->dev == NULL) {
-		PRINT_ER("&nic->wilc_netdev->dev  is NULL\n");
+	if (!(&vif->ndev->dev)) {
+		PRINT_ER("&vif->ndev->dev  is NULL\n");
 		goto _fail_;
 	}
 
-	/*	the firmare should be located in /lib/firmware in
-	 *      root file system with the name specified above */
-
-#ifdef WILC_SDIO
-	if (request_firmware(&wilc_firmware, firmware, &g_linux_wlan->wilc_sdio_func->dev) != 0) {
+	if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) {
 		PRINT_ER("%s - firmare not available\n", firmware);
 		ret = -1;
 		goto _fail_;
 	}
-#else
-	if (request_firmware(&wilc_firmware, firmware, &g_linux_wlan->wilc_spidev->dev) != 0) {
-		PRINT_ER("%s - firmare not available\n", firmware);
-		ret = -1;
-		goto _fail_;
-	}
-#endif
-	g_linux_wlan->firmware = wilc_firmware;
+	wilc->firmware = wilc_firmware;
 
 _fail_:
 
 	return ret;
-
 }
 
-static int linux_wlan_start_firmware(perInterface_wlan_t *nic)
+static int linux_wlan_start_firmware(struct net_device *dev)
 {
-
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 	int ret = 0;
-	/* start firmware */
+
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
+
 	PRINT_D(INIT_DBG, "Starting Firmware ...\n");
-	ret = wilc_wlan_start();
+	ret = wilc_wlan_start(wilc);
 	if (ret < 0) {
 		PRINT_ER("Failed to start Firmware\n");
-		goto _fail_;
+		return ret;
 	}
 
-	/* wait for mac ready */
 	PRINT_D(INIT_DBG, "Waiting for Firmware to get ready ...\n");
-	ret = linux_wlan_lock_timeout(&g_linux_wlan->sync_event, 5000);
+	ret = wilc_lock_timeout(wilc, &wilc->sync_event, 5000);
 	if (ret) {
 		PRINT_D(INIT_DBG, "Firmware start timed out");
-		goto _fail_;
+		return ret;
 	}
-	/*
-	 *      TODO: Driver shouoldn't wait forever for firmware to get started -
-	 *      in case of timeout this should be handled properly
-	 */
 	PRINT_D(INIT_DBG, "Firmware successfully started\n");
 
-_fail_:
-	return ret;
+	return 0;
 }
-static int linux_wlan_firmware_download(struct wilc *p_nic)
-{
 
+static int wilc1000_firmware_download(struct net_device *dev)
+{
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 	int ret = 0;
 
-	if (!g_linux_wlan->firmware) {
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
+
+	if (!wilc->firmware) {
 		PRINT_ER("Firmware buffer is NULL\n");
-		ret = -ENOBUFS;
-		goto _FAIL_;
+		return -ENOBUFS;
 	}
-	/**
-	 *      do the firmware download
-	 **/
 	PRINT_D(INIT_DBG, "Downloading Firmware ...\n");
-	ret = wilc_wlan_firmware_download(g_linux_wlan->firmware->data,
-					  g_linux_wlan->firmware->size);
+	ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,
+					  wilc->firmware->size);
 	if (ret < 0)
-		goto _FAIL_;
+		return ret;
 
-	/* Freeing FW buffer */
 	PRINT_D(INIT_DBG, "Freeing FW buffer ...\n");
 	PRINT_D(INIT_DBG, "Releasing firmware\n");
-	release_firmware(g_linux_wlan->firmware);
+	release_firmware(wilc->firmware);
+	wilc->firmware = NULL;
 
 	PRINT_D(INIT_DBG, "Download Succeeded\n");
 
-_FAIL_:
-	return ret;
+	return 0;
 }
 
-/* startup configuration - could be changed later using iconfig*/
-static int linux_wlan_init_test_config(struct net_device *dev, struct wilc *p_nic)
+static int linux_wlan_init_test_config(struct net_device *dev,
+				       struct wilc *wilc)
 {
-
 	unsigned char c_val[64];
 	unsigned char mac_add[] = {0x00, 0x80, 0xC2, 0x5E, 0xa2, 0xff};
 
 	struct wilc_priv *priv;
-	struct host_if_drv *pstrWFIDrv;
+	struct host_if_drv *hif_drv;
 
 	PRINT_D(TX_DBG, "Start configuring Firmware\n");
 	get_random_bytes(&mac_add[5], 1);
 	get_random_bytes(&mac_add[4], 1);
 	priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
-	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
-	PRINT_D(INIT_DBG, "Host = %p\n", pstrWFIDrv);
+	hif_drv = (struct host_if_drv *)priv->hWILCWFIDrv;
+	PRINT_D(INIT_DBG, "Host = %p\n", hif_drv);
 
-	PRINT_D(INIT_DBG, "MAC address is : %02x-%02x-%02x-%02x-%02x-%02x\n", mac_add[0], mac_add[1], mac_add[2], mac_add[3], mac_add[4], mac_add[5]);
-	wilc_get_chipid(0);
+	PRINT_D(INIT_DBG, "MAC address is : %02x-%02x-%02x-%02x-%02x-%02x\n",
+		mac_add[0], mac_add[1], mac_add[2],
+		mac_add[3], mac_add[4], mac_add[5]);
+	wilc_get_chipid(wilc, 0);
 
 	*(int *)c_val = 1;
 
-	if (!wilc_wlan_cfg_set(1, WID_SET_DRV_HANDLER, c_val, 4, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 1, WID_SET_DRV_HANDLER, c_val, 4, 0, 0))
 		goto _fail_;
 
-	/*to tell fw that we are going to use PC test - WILC specific*/
 	c_val[0] = 0;
-	if (!wilc_wlan_cfg_set(0, WID_PC_TEST_MODE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_PC_TEST_MODE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = INFRASTRUCTURE;
-	if (!wilc_wlan_cfg_set(0, WID_BSS_TYPE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_BSS_TYPE, c_val, 1, 0, 0))
 		goto _fail_;
 
-	/* c_val[0] = RATE_AUTO; */
 	c_val[0] = RATE_AUTO;
-	if (!wilc_wlan_cfg_set(0, WID_CURRENT_TX_RATE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_CURRENT_TX_RATE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = G_MIXED_11B_2_MODE;
-	if (!wilc_wlan_cfg_set(0, WID_11G_OPERATING_MODE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11G_OPERATING_MODE, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
 	c_val[0] = 1;
-	if (!wilc_wlan_cfg_set(0, WID_CURRENT_CHANNEL, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_CURRENT_CHANNEL, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = G_SHORT_PREAMBLE;
-	if (!wilc_wlan_cfg_set(0, WID_PREAMBLE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_PREAMBLE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = AUTO_PROT;
-	if (!wilc_wlan_cfg_set(0, WID_11N_PROT_MECH, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_PROT_MECH, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = ACTIVE_SCAN;
-	if (!wilc_wlan_cfg_set(0, WID_SCAN_TYPE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_SCAN_TYPE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = SITE_SURVEY_OFF;
-	if (!wilc_wlan_cfg_set(0, WID_SITE_SURVEY, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_SITE_SURVEY, c_val, 1, 0, 0))
 		goto _fail_;
 
-	*((int *)c_val) = 0xffff; /* Never use RTS-CTS */
-	if (!wilc_wlan_cfg_set(0, WID_RTS_THRESHOLD, c_val, 2, 0, 0))
+	*((int *)c_val) = 0xffff;
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_RTS_THRESHOLD, c_val, 2, 0, 0))
 		goto _fail_;
 
 	*((int *)c_val) = 2346;
-	if (!wilc_wlan_cfg_set(0, WID_FRAG_THRESHOLD, c_val, 2, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_FRAG_THRESHOLD, c_val, 2, 0, 0))
 		goto _fail_;
 
-	/*  SSID                                                                 */
-	/*  --------------------------------------------------------------       */
-	/*  Configuration :   String with length less than 32 bytes              */
-	/*  Values to set :   Any string with length less than 32 bytes          */
-	/*                    ( In BSS Station Set SSID to "" (null string)      */
-	/*                      to enable Broadcast SSID suppport )              */
-	/*  --------------------------------------------------------------       */
 	c_val[0] = 0;
-	if (!wilc_wlan_cfg_set(0, WID_BCAST_SSID, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_BCAST_SSID, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 1;
-	if (!wilc_wlan_cfg_set(0, WID_QOS_ENABLE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_QOS_ENABLE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = NO_POWERSAVE;
-	if (!wilc_wlan_cfg_set(0, WID_POWER_MANAGEMENT, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_POWER_MANAGEMENT, c_val, 1, 0, 0))
 		goto _fail_;
 
-	c_val[0] = NO_ENCRYPT; /* NO_ENCRYPT, 0x79 */
-	if (!wilc_wlan_cfg_set(0, WID_11I_MODE, c_val, 1, 0, 0))
+	c_val[0] = NO_SECURITY; /* NO_ENCRYPT, 0x79 */
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11I_MODE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = OPEN_SYSTEM;
-	if (!wilc_wlan_cfg_set(0, WID_AUTH_TYPE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_AUTH_TYPE, c_val, 1, 0, 0))
 		goto _fail_;
 
-	/*  WEP/802 11I Configuration                                            */
-	/*  ------------------------------------------------------------------   */
-	/*  Configuration : WEP Key                                              */
-	/*  Values (0x)   : 5 byte for WEP40 and 13 bytes for WEP104             */
-	/*                  In case more than 5 bytes are passed on for WEP 40   */
-	/*                  only first 5 bytes will be used as the key           */
-	/*  ------------------------------------------------------------------   */
-
 	strcpy(c_val, "123456790abcdef1234567890");
-	if (!wilc_wlan_cfg_set(0, WID_WEP_KEY_VALUE, c_val, (strlen(c_val) + 1), 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_WEP_KEY_VALUE, c_val,
+			       (strlen(c_val) + 1), 0, 0))
 		goto _fail_;
 
-	/*  WEP/802 11I Configuration                                            */
-	/*  ------------------------------------------------------------------   */
-	/*  Configuration : AES/TKIP WPA/RSNA Pre-Shared Key                     */
-	/*  Values to set : Any string with length greater than equal to 8 bytes */
-	/*                  and less than 64 bytes                               */
-	/*  ------------------------------------------------------------------   */
 	strcpy(c_val, "12345678");
-	if (!wilc_wlan_cfg_set(0, WID_11I_PSK, c_val, (strlen(c_val)), 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11I_PSK, c_val, (strlen(c_val)), 0,
+			       0))
 		goto _fail_;
 
-	/*  IEEE802.1X Key Configuration                                         */
-	/*  ------------------------------------------------------------------   */
-	/*  Configuration : Radius Server Access Secret Key                      */
-	/*  Values to set : Any string with length greater than equal to 8 bytes */
-	/*                  and less than 65 bytes                               */
-	/*  ------------------------------------------------------------------   */
 	strcpy(c_val, "password");
-	if (!wilc_wlan_cfg_set(0, WID_1X_KEY, c_val, (strlen(c_val) + 1), 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_1X_KEY, c_val, (strlen(c_val) + 1),
+			       0, 0))
 		goto _fail_;
 
-	/*   IEEE802.1X Server Address Configuration                             */
-	/*  ------------------------------------------------------------------   */
-	/*  Configuration : Radius Server IP Address                             */
-	/*  Values to set : Any valid IP Address                                 */
-	/*  ------------------------------------------------------------------   */
 	c_val[0] = 192;
 	c_val[1] = 168;
 	c_val[2] = 1;
 	c_val[3] = 112;
-	if (!wilc_wlan_cfg_set(0, WID_1X_SERV_ADDR, c_val, 4, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_1X_SERV_ADDR, c_val, 4, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 3;
-	if (!wilc_wlan_cfg_set(0, WID_LISTEN_INTERVAL, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_LISTEN_INTERVAL, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 3;
-	if (!wilc_wlan_cfg_set(0, WID_DTIM_PERIOD, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_DTIM_PERIOD, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = NORMAL_ACK;
-	if (!wilc_wlan_cfg_set(0, WID_ACK_POLICY, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_ACK_POLICY, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 0;
-	if (!wilc_wlan_cfg_set(0, WID_USER_CONTROL_ON_TX_POWER, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_USER_CONTROL_ON_TX_POWER, c_val, 1,
+			       0, 0))
 		goto _fail_;
 
 	c_val[0] = 48;
-	if (!wilc_wlan_cfg_set(0, WID_TX_POWER_LEVEL_11A, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_TX_POWER_LEVEL_11A, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
 	c_val[0] = 28;
-	if (!wilc_wlan_cfg_set(0, WID_TX_POWER_LEVEL_11B, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_TX_POWER_LEVEL_11B, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
-	/*  Beacon Interval                                                      */
-	/*  -------------------------------------------------------------------- */
-	/*  Configuration : Sets the beacon interval value                       */
-	/*  Values to set : Any 16-bit value                                     */
-	/*  -------------------------------------------------------------------- */
-
 	*((int *)c_val) = 100;
-	if (!wilc_wlan_cfg_set(0, WID_BEACON_INTERVAL, c_val, 2, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_BEACON_INTERVAL, c_val, 2, 0, 0))
 		goto _fail_;
 
 	c_val[0] = REKEY_DISABLE;
-	if (!wilc_wlan_cfg_set(0, WID_REKEY_POLICY, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_REKEY_POLICY, c_val, 1, 0, 0))
 		goto _fail_;
 
-	/*  Rekey Time (s) (Used only when the Rekey policy is 2 or 4)           */
-	/*  -------------------------------------------------------------------- */
-	/*  Configuration : Sets the Rekey Time (s)                              */
-	/*  Values to set : 32-bit value                                         */
-	/*  -------------------------------------------------------------------- */
 	*((int *)c_val) = 84600;
-	if (!wilc_wlan_cfg_set(0, WID_REKEY_PERIOD, c_val, 4, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_REKEY_PERIOD, c_val, 4, 0, 0))
 		goto _fail_;
 
-	/*  Rekey Packet Count (in 1000s; used when Rekey Policy is 3)           */
-	/*  -------------------------------------------------------------------- */
-	/*  Configuration : Sets Rekey Group Packet count                        */
-	/*  Values to set : 32-bit Value                                         */
-	/*  -------------------------------------------------------------------- */
 	*((int *)c_val) = 500;
-	if (!wilc_wlan_cfg_set(0, WID_REKEY_PACKET_COUNT, c_val, 4, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_REKEY_PACKET_COUNT, c_val, 4, 0,
+			       0))
 		goto _fail_;
 
 	c_val[0] = 1;
-	if (!wilc_wlan_cfg_set(0, WID_SHORT_SLOT_ALLOWED, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_SHORT_SLOT_ALLOWED, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
 	c_val[0] = G_SELF_CTS_PROT;
-	if (!wilc_wlan_cfg_set(0, WID_11N_ERP_PROT_TYPE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_ERP_PROT_TYPE, c_val, 1, 0, 0))
 		goto _fail_;
 
-	c_val[0] = 1;  /* Enable N */
-	if (!wilc_wlan_cfg_set(0, WID_11N_ENABLE, c_val, 1, 0, 0))
+	c_val[0] = 1;
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_ENABLE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = HT_MIXED_MODE;
-	if (!wilc_wlan_cfg_set(0, WID_11N_OPERATING_MODE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_OPERATING_MODE, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
-	c_val[0] = 1;   /* TXOP Prot disable in N mode: No RTS-CTS on TX A-MPDUs to save air-time. */
-	if (!wilc_wlan_cfg_set(0, WID_11N_TXOP_PROT_DISABLE, c_val, 1, 0, 0))
+	c_val[0] = 1;
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_TXOP_PROT_DISABLE, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
 	memcpy(c_val, mac_add, 6);
 
-	if (!wilc_wlan_cfg_set(0, WID_MAC_ADDR, c_val, 6, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_MAC_ADDR, c_val, 6, 0, 0))
 		goto _fail_;
 
-	/**
-	 *      AP only
-	 **/
 	c_val[0] = DETECT_PROTECT_REPORT;
-	if (!wilc_wlan_cfg_set(0, WID_11N_OBSS_NONHT_DETECTION, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_OBSS_NONHT_DETECTION, c_val, 1,
+			       0, 0))
 		goto _fail_;
 
 	c_val[0] = RTS_CTS_NONHT_PROT;
-	if (!wilc_wlan_cfg_set(0, WID_11N_HT_PROT_TYPE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_HT_PROT_TYPE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 0;
-	if (!wilc_wlan_cfg_set(0, WID_11N_RIFS_PROT_ENABLE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_RIFS_PROT_ENABLE, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
 	c_val[0] = MIMO_MODE;
-	if (!wilc_wlan_cfg_set(0, WID_11N_SMPS_MODE, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_SMPS_MODE, c_val, 1, 0, 0))
 		goto _fail_;
 
 	c_val[0] = 7;
-	if (!wilc_wlan_cfg_set(0, WID_11N_CURRENT_TX_MCS, c_val, 1, 0, 0))
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_CURRENT_TX_MCS, c_val, 1, 0,
+			       0))
 		goto _fail_;
 
-	c_val[0] = 1; /* Enable N with immediate block ack. */
-	if (!wilc_wlan_cfg_set(0, WID_11N_IMMEDIATE_BA_ENABLED, c_val, 1, 1, 1))
+	c_val[0] = 1;
+	if (!wilc_wlan_cfg_set(wilc, 0, WID_11N_IMMEDIATE_BA_ENABLED, c_val, 1,
+			       1, 1))
 		goto _fail_;
 
 	return 0;
@@ -884,14 +732,13 @@ _fail_:
 	return -1;
 }
 
-/**************************/
 void wilc1000_wlan_deinit(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
 
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
 
 	if (!wl) {
 		netdev_err(dev, "wl is NULL\n");
@@ -901,20 +748,14 @@ void wilc1000_wlan_deinit(struct net_device *dev)
 	if (wl->initialized)	{
 		netdev_info(dev, "Deinitializing wilc1000...\n");
 
-#if defined(PLAT_ALLWINNER_A20) || defined(PLAT_ALLWINNER_A23) || defined(PLAT_ALLWINNER_A31)
-		/* johnny : remove */
-		PRINT_D(INIT_DBG, "skip wilc_bus_set_default_speed\n");
-#else
-		wilc_bus_set_default_speed();
-#endif
-
 		PRINT_D(INIT_DBG, "Disabling IRQ\n");
-#ifdef WILC_SDIO
-		mutex_lock(&wl->hif_cs);
-		disable_sdio_interrupt();
-		mutex_unlock(&wl->hif_cs);
-#endif
-		if (&wl->txq_event != NULL)
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->disable_interrupt) {
+			mutex_lock(&wl->hif_cs);
+			wl->hif_func->disable_interrupt(wl);
+			mutex_unlock(&wl->hif_cs);
+		}
+		if (&wl->txq_event)
 			up(&wl->txq_event);
 
 		PRINT_D(INIT_DBG, "Deinitializing Threads\n");
@@ -923,25 +764,25 @@ void wilc1000_wlan_deinit(struct net_device *dev)
 		PRINT_D(INIT_DBG, "Deinitializing IRQ\n");
 		deinit_irq(dev);
 
-		wilc_wlan_stop();
+		wilc_wlan_stop(wl);
 
 		PRINT_D(INIT_DBG, "Deinitializing WILC Wlan\n");
 		wilc_wlan_cleanup(dev);
-#if (defined WILC_SDIO) && (!defined WILC_SDIO_IRQ_GPIO)
-  #if defined(PLAT_ALLWINNER_A20) || defined(PLAT_ALLWINNER_A23) || defined(PLAT_ALLWINNER_A31)
-		PRINT_D(INIT_DBG, "Disabling IRQ 2\n");
-
-		mutex_lock(&wl->hif_cs);
-		disable_sdio_interrupt();
-		mutex_unlock(&wl->hif_cs);
-  #endif
+#if defined(PLAT_ALLWINNER_A20) || defined(PLAT_ALLWINNER_A23) || defined(PLAT_ALLWINNER_A31)
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->disable_interrupt) {
+
+			PRINT_D(INIT_DBG, "Disabling IRQ 2\n");
+
+			mutex_lock(&wl->hif_cs);
+			wl->hif_func->disable_interrupt(wl);
+			mutex_unlock(&wl->hif_cs);
+		}
 #endif
 
-		/*De-Initialize locks*/
 		PRINT_D(INIT_DBG, "Deinitializing Locks\n");
 		wlan_deinit_locks(dev);
 
-		/* announce that wilc1000 is not initialized */
 		wl->initialized = false;
 
 		PRINT_D(INIT_DBG, "wilc1000 deinitialization Done\n");
@@ -951,13 +792,13 @@ void wilc1000_wlan_deinit(struct net_device *dev)
 	}
 }
 
-int wlan_init_locks(struct net_device *dev)
+static int wlan_init_locks(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
 
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
 
 	PRINT_D(INIT_DBG, "Initializing Locks ...\n");
 
@@ -979,105 +820,68 @@ int wlan_init_locks(struct net_device *dev)
 
 static int wlan_deinit_locks(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
 	PRINT_D(INIT_DBG, "De-Initializing Locks\n");
 
-	if (&wilc->hif_cs != NULL)
+	if (&wilc->hif_cs)
 		mutex_destroy(&wilc->hif_cs);
 
-	if (&wilc->rxq_cs != NULL)
+	if (&wilc->rxq_cs)
 		mutex_destroy(&wilc->rxq_cs);
 
 	return 0;
 }
-void linux_to_wlan(wilc_wlan_inp_t *nwi, struct wilc *nic)
-{
-
-	PRINT_D(INIT_DBG, "Linux to Wlan services ...\n");
-
-	nwi->os_context.os_private = (void *)nic;
 
-#ifdef WILC_SDIO
-	nwi->io_func.io_type = HIF_SDIO;
-	nwi->io_func.io_init = linux_sdio_init;
-	nwi->io_func.io_deinit = linux_sdio_deinit;
-	nwi->io_func.u.sdio.sdio_cmd52 = linux_sdio_cmd52;
-	nwi->io_func.u.sdio.sdio_cmd53 = linux_sdio_cmd53;
-	nwi->io_func.u.sdio.sdio_set_max_speed = linux_sdio_set_max_speed;
-	nwi->io_func.u.sdio.sdio_set_default_speed = linux_sdio_set_default_speed;
-#else
-	nwi->io_func.io_type = HIF_SPI;
-	nwi->io_func.io_init = linux_spi_init;
-	nwi->io_func.io_deinit = linux_spi_deinit;
-	nwi->io_func.u.spi.spi_tx = linux_spi_write;
-	nwi->io_func.u.spi.spi_rx = linux_spi_read;
-	nwi->io_func.u.spi.spi_trx = linux_spi_write_read;
-	nwi->io_func.u.spi.spi_max_speed = linux_spi_set_max_speed;
-#endif
-}
-
-int wlan_initialize_threads(struct net_device *dev)
+static int wlan_initialize_threads(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
-	int ret = 0;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
 	PRINT_D(INIT_DBG, "Initializing Threads ...\n");
-
-	/* create tx task */
 	PRINT_D(INIT_DBG, "Creating kthread for transmission\n");
 	wilc->txq_thread = kthread_run(linux_wlan_txq_task, (void *)dev,
 				     "K_TXQ_TASK");
 	if (!wilc->txq_thread) {
 		PRINT_ER("couldn't create TXQ thread\n");
-		ret = -ENOBUFS;
-		goto _fail_2;
+		wilc->close = 0;
+		return -ENOBUFS;
 	}
-	/* wait for TXQ task to start. */
 	down(&wilc->txq_thread_started);
 
 	return 0;
-
-_fail_2:
-	/*De-Initialize 2nd thread*/
-	wilc->close = 0;
-	return ret;
 }
 
 static void wlan_deinitialize_threads(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
-
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
 
 	wl->close = 1;
 	PRINT_D(INIT_DBG, "Deinitializing Threads\n");
 
-	if (&wl->txq_event != NULL)
+	if (&wl->txq_event)
 		up(&wl->txq_event);
 
-	if (wl->txq_thread != NULL) {
+	if (wl->txq_thread) {
 		kthread_stop(wl->txq_thread);
 		wl->txq_thread = NULL;
 	}
 }
 
-int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
+int wilc1000_wlan_init(struct net_device *dev, struct wilc_vif *vif)
 {
-	wilc_wlan_inp_t nwi;
-	perInterface_wlan_t *nic = p_nic;
 	int ret = 0;
-	struct wilc *wl = nic->wilc;
+	struct wilc *wl = vif->wilc;
 
 	if (!wl->initialized) {
 		wl->mac_status = WILC_MAC_STATUS_INIT;
@@ -1085,22 +889,18 @@ int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
 
 		wlan_init_locks(dev);
 
-		linux_to_wlan(&nwi, wl);
-
-		ret = wilc_wlan_init(&nwi);
+		ret = wilc_wlan_init(dev);
 		if (ret < 0) {
 			PRINT_ER("Initializing WILC_Wlan FAILED\n");
 			ret = -EIO;
 			goto _fail_locks_;
 		}
 
-#if (!defined WILC_SDIO) || (defined WILC_SDIO_IRQ_GPIO)
-		if (init_irq(dev)) {
+		if (wl->gpio >= 0 && init_irq(dev)) {
 			PRINT_ER("couldn't initialize IRQ\n");
 			ret = -EIO;
 			goto _fail_locks_;
 		}
-#endif
 
 		ret = wlan_initialize_threads(dev);
 		if (ret < 0) {
@@ -1109,39 +909,35 @@ int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
 			goto _fail_wilc_wlan_;
 		}
 
-#if (defined WILC_SDIO) && (!defined WILC_SDIO_IRQ_GPIO)
-		if (enable_sdio_interrupt()) {
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->enable_interrupt &&
+		    wl->hif_func->enable_interrupt(wl)) {
 			PRINT_ER("couldn't initialize IRQ\n");
 			ret = -EIO;
 			goto _fail_irq_init_;
 		}
-#endif
 
-		if (linux_wlan_get_firmware(nic)) {
+		if (wilc_wlan_get_firmware(dev)) {
 			PRINT_ER("Can't get firmware\n");
 			ret = -EIO;
 			goto _fail_irq_enable_;
 		}
 
-		/*Download firmware*/
-		ret = linux_wlan_firmware_download(wl);
+		ret = wilc1000_firmware_download(dev);
 		if (ret < 0) {
 			PRINT_ER("Failed to download firmware\n");
 			ret = -EIO;
 			goto _fail_irq_enable_;
 		}
 
-		/* Start firmware*/
-		ret = linux_wlan_start_firmware(nic);
+		ret = linux_wlan_start_firmware(dev);
 		if (ret < 0) {
 			PRINT_ER("Failed to start firmware\n");
 			ret = -EIO;
 			goto _fail_irq_enable_;
 		}
 
-		wilc_bus_set_max_speed();
-
-		if (wilc_wlan_cfg_get(1, WID_FIRMWARE_VERSION, 1, 0)) {
+		if (wilc_wlan_cfg_get(wl, 1, WID_FIRMWARE_VERSION, 1, 0)) {
 			int size;
 			char Firmware_ver[20];
 
@@ -1151,7 +947,6 @@ int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
 			Firmware_ver[size] = '\0';
 			PRINT_D(INIT_DBG, "***** Firmware Ver = %s  *******\n", Firmware_ver);
 		}
-		/* Initialize firmware with default configuration */
 		ret = linux_wlan_init_test_config(dev, wl);
 
 		if (ret < 0) {
@@ -1161,20 +956,19 @@ int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
 		}
 
 		wl->initialized = true;
-		return 0; /*success*/
+		return 0;
 
 _fail_fw_start_:
-		wilc_wlan_stop();
+		wilc_wlan_stop(wl);
 
 _fail_irq_enable_:
-#if (defined WILC_SDIO) && (!defined WILC_SDIO_IRQ_GPIO)
-		disable_sdio_interrupt();
+		if (!wl->dev_irq_num &&
+		    wl->hif_func->disable_interrupt)
+			wl->hif_func->disable_interrupt(wl);
 _fail_irq_init_:
-#endif
-#if (!defined WILC_SDIO) || (defined WILC_SDIO_IRQ_GPIO)
-		deinit_irq(dev);
+		if (wl->dev_irq_num)
+			deinit_irq(dev);
 
-#endif
 		wlan_deinitialize_threads(dev);
 _fail_wilc_wlan_:
 		wilc_wlan_cleanup(dev);
@@ -1187,44 +981,36 @@ _fail_locks_:
 	return ret;
 }
 
-/*
- *      - this function will be called automatically by OS when module inserted.
- */
-
-int mac_init_fn(struct net_device *ndev)
+static int mac_init_fn(struct net_device *ndev)
 {
-
-	/*Why we do this !!!*/
-	netif_start_queue(ndev); /* ma */
-	netif_stop_queue(ndev); /* ma */
+	netif_start_queue(ndev);
+	netif_stop_queue(ndev);
 
 	return 0;
 }
 
-/* This fn is called, when this device is setup using ifconfig */
-int mac_open(struct net_device *ndev)
+int wilc_mac_open(struct net_device *ndev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 
-	/*No need for setting mac address here anymore,*/
-	/*Just set it in init_test_config()*/
 	unsigned char mac_add[ETH_ALEN] = {0};
 	int ret = 0;
 	int i = 0;
 	struct wilc_priv *priv;
 	struct wilc *wl;
 
-	nic = netdev_priv(ndev);
-	wl = nic->wilc;
+	vif = netdev_priv(ndev);
+	wl = vif->wilc;
 
-#ifdef WILC_SPI
-	if (!wl|| !wl->wilc_spidev) {
+	if (!wl|| !wl->dev) {
 		netdev_err(ndev, "wilc1000: SPI device not ready\n");
 		return -ENODEV;
 	}
-#endif
-	nic = netdev_priv(ndev);
-	priv = wiphy_priv(nic->wilc_netdev->ieee80211_ptr->wiphy);
+
+	vif = netdev_priv(ndev);
+	wilc = vif->wilc;
+	priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy);
 	PRINT_D(INIT_DBG, "MAC OPEN[%p]\n", ndev);
 
 	ret = wilc_init_host_int(ndev);
@@ -1234,153 +1020,143 @@ int mac_open(struct net_device *ndev)
 		return ret;
 	}
 
-	/*initialize platform*/
 	PRINT_D(INIT_DBG, "*** re-init ***\n");
-	ret = wilc1000_wlan_init(ndev, nic);
+	ret = wilc1000_wlan_init(ndev, vif);
 	if (ret < 0) {
 		PRINT_ER("Failed to initialize wilc1000\n");
 		wilc_deinit_host_int(ndev);
 		return ret;
 	}
 
-	Set_machw_change_vir_if(ndev, false);
+	wilc_set_machw_change_vir_if(ndev, false);
 
-	host_int_get_MacAddress(priv->hWILCWFIDrv, mac_add);
+	wilc_get_mac_address(vif, mac_add);
 	PRINT_D(INIT_DBG, "Mac address: %pM\n", mac_add);
 
-	/* loop through the NUM of supported devices and set the MAC address */
 	for (i = 0; i < wl->vif_num; i++) {
-		if (ndev == wl->vif[i].ndev) {
-			memcpy(wl->vif[i].src_addr, mac_add, ETH_ALEN);
-			wl->vif[i].hif_drv = priv->hWILCWFIDrv;
+		if (ndev == wl->vif[i]->ndev) {
+			memcpy(wl->vif[i]->src_addr, mac_add, ETH_ALEN);
 			break;
 		}
 	}
 
-	/* TODO: get MAC address whenever the source is EPROM - hardcoded and copy it to ndev*/
-	memcpy(ndev->dev_addr, wl->vif[i].src_addr, ETH_ALEN);
+	memcpy(ndev->dev_addr, wl->vif[i]->src_addr, ETH_ALEN);
 
 	if (!is_valid_ether_addr(ndev->dev_addr)) {
 		PRINT_ER("Error: Wrong MAC address\n");
-		ret = -EINVAL;
-		goto _err_;
+		wilc_deinit_host_int(ndev);
+		wilc1000_wlan_deinit(ndev);
+		return -EINVAL;
 	}
 
-	wilc_mgmt_frame_register(nic->wilc_netdev->ieee80211_ptr->wiphy, nic->wilc_netdev->ieee80211_ptr,
-				 nic->g_struct_frame_reg[0].frame_type, nic->g_struct_frame_reg[0].reg);
-	wilc_mgmt_frame_register(nic->wilc_netdev->ieee80211_ptr->wiphy, nic->wilc_netdev->ieee80211_ptr,
-				 nic->g_struct_frame_reg[1].frame_type, nic->g_struct_frame_reg[1].reg);
+	wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
+				 vif->ndev->ieee80211_ptr,
+				 vif->g_struct_frame_reg[0].frame_type,
+				 vif->g_struct_frame_reg[0].reg);
+	wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
+				 vif->ndev->ieee80211_ptr,
+				 vif->g_struct_frame_reg[1].frame_type,
+				 vif->g_struct_frame_reg[1].reg);
 	netif_wake_queue(ndev);
 	wl->open_ifcs++;
-	nic->mac_opened = 1;
+	vif->mac_opened = 1;
 	return 0;
-
-_err_:
-	wilc_deinit_host_int(ndev);
-	wilc1000_wlan_deinit(ndev);
-	return ret;
 }
 
-struct net_device_stats *mac_stats(struct net_device *dev)
+static struct net_device_stats *mac_stats(struct net_device *dev)
 {
-	perInterface_wlan_t *nic = netdev_priv(dev);
+	struct wilc_vif *vif= netdev_priv(dev);
 
-	return &nic->netstats;
+	return &vif->netstats;
 }
 
-/* Setup the multicast filter */
 static void wilc_set_multicast_list(struct net_device *dev)
 {
-
 	struct netdev_hw_addr *ha;
 	struct wilc_priv *priv;
-	struct host_if_drv *pstrWFIDrv;
+	struct host_if_drv *hif_drv;
+	struct wilc_vif *vif;
 	int i = 0;
 
 	priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
-	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
+	vif = netdev_priv(dev);
+	hif_drv = (struct host_if_drv *)priv->hWILCWFIDrv;
 
 	if (!dev)
 		return;
 
-	PRINT_D(INIT_DBG, "Setting Multicast List with count = %d.\n", dev->mc.count);
+	PRINT_D(INIT_DBG, "Setting Multicast List with count = %d.\n",
+		dev->mc.count);
 
 	if (dev->flags & IFF_PROMISC) {
-		/* Normally, we should configure the chip to retrive all packets
-		 * but we don't wanna support this right now */
-		/* TODO: add promiscuous mode support */
 		PRINT_D(INIT_DBG, "Set promiscuous mode ON, retrive all packets\n");
 		return;
 	}
 
-	/* If there's more addresses than we handle, get all multicast
-	 * packets and sort them out in software. */
-	if ((dev->flags & IFF_ALLMULTI) || (dev->mc.count) > WILC_MULTICAST_TABLE_SIZE) {
+	if ((dev->flags & IFF_ALLMULTI) ||
+	    (dev->mc.count) > WILC_MULTICAST_TABLE_SIZE) {
 		PRINT_D(INIT_DBG, "Disable multicast filter, retrive all multicast packets\n");
-		/* get all multicast packets */
-		host_int_setup_multicast_filter(pstrWFIDrv, false, 0);
+		wilc_setup_multicast_filter(vif, false, 0);
 		return;
 	}
 
-	/* No multicast?  Just get our own stuff */
 	if ((dev->mc.count) == 0) {
 		PRINT_D(INIT_DBG, "Enable multicast filter, retrive directed packets only.\n");
-		host_int_setup_multicast_filter(pstrWFIDrv, true, 0);
+		wilc_setup_multicast_filter(vif, true, 0);
 		return;
 	}
 
-	/* Store all of the multicast addresses in the hardware filter */
-	netdev_for_each_mc_addr(ha, dev)
-	{
-		memcpy(gau8MulticastMacAddrList[i], ha->addr, ETH_ALEN);
+	netdev_for_each_mc_addr(ha, dev) {
+		memcpy(wilc_multicast_mac_addr_list[i], ha->addr, ETH_ALEN);
 		PRINT_D(INIT_DBG, "Entry[%d]: %x:%x:%x:%x:%x:%x\n", i,
-			gau8MulticastMacAddrList[i][0], gau8MulticastMacAddrList[i][1], gau8MulticastMacAddrList[i][2], gau8MulticastMacAddrList[i][3], gau8MulticastMacAddrList[i][4], gau8MulticastMacAddrList[i][5]);
+			wilc_multicast_mac_addr_list[i][0],
+			wilc_multicast_mac_addr_list[i][1],
+			wilc_multicast_mac_addr_list[i][2],
+			wilc_multicast_mac_addr_list[i][3],
+			wilc_multicast_mac_addr_list[i][4],
+			wilc_multicast_mac_addr_list[i][5]);
 		i++;
 	}
 
-	host_int_setup_multicast_filter(pstrWFIDrv, true, (dev->mc.count));
+	wilc_setup_multicast_filter(vif, true, (dev->mc.count));
 
 	return;
-
 }
 
 static void linux_wlan_tx_complete(void *priv, int status)
 {
-
 	struct tx_complete_data *pv_data = (struct tx_complete_data *)priv;
 
 	if (status == 1)
 		PRINT_D(TX_DBG, "Packet sent successfully - Size = %d - Address = %p - SKB = %p\n", pv_data->size, pv_data->buff, pv_data->skb);
 	else
 		PRINT_D(TX_DBG, "Couldn't send packet - Size = %d - Address = %p - SKB = %p\n", pv_data->size, pv_data->buff, pv_data->skb);
-	/* Free the SK Buffer, its work is done */
 	dev_kfree_skb(pv_data->skb);
 	kfree(pv_data);
 }
 
-int mac_xmit(struct sk_buff *skb, struct net_device *ndev)
+int wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct tx_complete_data *tx_data = NULL;
-	int QueueCount;
-	char *pu8UdpBuffer;
+	int queue_count;
+	char *udp_buf;
 	struct iphdr *ih;
 	struct ethhdr *eth_h;
 	struct wilc *wilc;
 
-	nic = netdev_priv(ndev);
-	wilc = nic->wilc;
+	vif = netdev_priv(ndev);
+	wilc = vif->wilc;
 
 	PRINT_D(TX_DBG, "Sending packet just received from TCP/IP\n");
 
-	/* Stop the network interface queue */
 	if (skb->dev != ndev) {
 		PRINT_ER("Packet not destined to this device\n");
 		return 0;
 	}
 
-	tx_data = kmalloc(sizeof(struct tx_complete_data), GFP_ATOMIC);
-	if (tx_data == NULL) {
+	tx_data = kmalloc(sizeof(*tx_data), GFP_ATOMIC);
+	if (!tx_data) {
 		PRINT_ER("Failed to allocate memory for tx_data structure\n");
 		dev_kfree_skb(skb);
 		netif_wake_queue(ndev);
@@ -1395,59 +1171,55 @@ int mac_xmit(struct sk_buff *skb, struct net_device *ndev)
 	if (eth_h->h_proto == 0x8e88)
 		PRINT_D(INIT_DBG, "EAPOL transmitted\n");
 
-	/*get source and dest ip addresses*/
 	ih = (struct iphdr *)(skb->data + sizeof(struct ethhdr));
 
-	pu8UdpBuffer = (char *)ih + sizeof(struct iphdr);
-	if ((pu8UdpBuffer[1] == 68 && pu8UdpBuffer[3] == 67) || (pu8UdpBuffer[1] == 67 && pu8UdpBuffer[3] == 68))
-		PRINT_D(GENERIC_DBG, "DHCP Message transmitted, type:%x %x %x\n", pu8UdpBuffer[248], pu8UdpBuffer[249], pu8UdpBuffer[250]);
+	udp_buf = (char *)ih + sizeof(struct iphdr);
+	if ((udp_buf[1] == 68 && udp_buf[3] == 67) ||
+	    (udp_buf[1] == 67 && udp_buf[3] == 68))
+		PRINT_D(GENERIC_DBG, "DHCP Message transmitted, type:%x %x %x\n",
+			udp_buf[248], udp_buf[249], udp_buf[250]);
 
 	PRINT_D(TX_DBG, "Sending packet - Size = %d - Address = %p - SKB = %p\n", tx_data->size, tx_data->buff, tx_data->skb);
-
-	/* Send packet to MAC HW - for now the tx_complete function will be just status
-	 * indicator. still not sure if I need to suspend host transmission till the tx_complete
-	 * function called or not?
-	 * allocated buffer will be freed in tx_complete function.
-	 */
 	PRINT_D(TX_DBG, "Adding tx packet to TX Queue\n");
-	nic->netstats.tx_packets++;
-	nic->netstats.tx_bytes += tx_data->size;
-	tx_data->pBssid = wilc->vif[nic->u8IfIdx].bssid;
-	QueueCount = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
-					       tx_data->buff, tx_data->size,
-					       linux_wlan_tx_complete);
-
-	if (QueueCount > FLOW_CONTROL_UPPER_THRESHOLD) {
-		netif_stop_queue(wilc->vif[0].ndev);
-		netif_stop_queue(wilc->vif[1].ndev);
+	vif->netstats.tx_packets++;
+	vif->netstats.tx_bytes += tx_data->size;
+	tx_data->pBssid = wilc->vif[vif->u8IfIdx]->bssid;
+	queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
+						tx_data->buff, tx_data->size,
+						linux_wlan_tx_complete);
+
+	if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
+		netif_stop_queue(wilc->vif[0]->ndev);
+		netif_stop_queue(wilc->vif[1]->ndev);
 	}
 
 	return 0;
 }
 
-int mac_close(struct net_device *ndev)
+int wilc_mac_close(struct net_device *ndev)
 {
 	struct wilc_priv *priv;
-	perInterface_wlan_t *nic;
-	struct host_if_drv *pstrWFIDrv;
+	struct wilc_vif *vif;
+	struct host_if_drv *hif_drv;
 	struct wilc *wl;
 
-	nic = netdev_priv(ndev);
+	vif = netdev_priv(ndev);
 
-	if ((nic == NULL) || (nic->wilc_netdev == NULL) || (nic->wilc_netdev->ieee80211_ptr == NULL) || (nic->wilc_netdev->ieee80211_ptr->wiphy == NULL)) {
-		PRINT_ER("nic = NULL\n");
+	if (!vif || !vif->ndev || !vif->ndev->ieee80211_ptr ||
+	    !vif->ndev->ieee80211_ptr->wiphy) {
+		PRINT_ER("vif = NULL\n");
 		return 0;
 	}
 
-	priv = wiphy_priv(nic->wilc_netdev->ieee80211_ptr->wiphy);
-	wl = nic->wilc;
+	priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy);
+	wl = vif->wilc;
 
-	if (priv == NULL) {
+	if (!priv) {
 		PRINT_ER("priv = NULL\n");
 		return 0;
 	}
 
-	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
+	hif_drv = (struct host_if_drv *)priv->hWILCWFIDrv;
 
 	PRINT_D(GENERIC_DBG, "Mac close\n");
 
@@ -1456,8 +1228,8 @@ int mac_close(struct net_device *ndev)
 		return 0;
 	}
 
-	if (pstrWFIDrv == NULL)	{
-		PRINT_ER("pstrWFIDrv = NULL\n");
+	if (!hif_drv) {
+		PRINT_ER("hif_drv = NULL\n");
 		return 0;
 	}
 
@@ -1468,11 +1240,10 @@ int mac_close(struct net_device *ndev)
 		return 0;
 	}
 
-	if (nic->wilc_netdev != NULL) {
-		/* Stop the network interface queue */
-		netif_stop_queue(nic->wilc_netdev);
+	if (vif->ndev) {
+		netif_stop_queue(vif->ndev);
 
-		wilc_deinit_host_int(nic->wilc_netdev);
+		wilc_deinit_host_int(vif->ndev);
 	}
 
 	if (wl->open_ifcs == 0) {
@@ -1483,59 +1254,54 @@ int mac_close(struct net_device *ndev)
 	}
 
 	up(&close_exit_sync);
-	nic->mac_opened = 0;
+	vif->mac_opened = 0;
 
 	return 0;
 }
 
-int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
+static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
 {
-
 	u8 *buff = NULL;
 	s8 rssi;
 	u32 size = 0, length = 0;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc_priv *priv;
-	s32 s32Error = 0;
+	s32 ret = 0;
 	struct wilc *wilc;
 
-	/* struct iwreq *wrq = (struct iwreq *) req;	// tony moved to case SIOCSIWPRIV */
-	nic = netdev_priv(ndev);
-	wilc = nic->wilc;
+	vif = netdev_priv(ndev);
+	wilc = vif->wilc;
 
 	if (!wilc->initialized)
 		return 0;
 
 	switch (cmd) {
-
-	/* ]] 2013-06-24 */
 	case SIOCSIWPRIV:
 	{
-		struct iwreq *wrq = (struct iwreq *) req;               /* added by tony */
+		struct iwreq *wrq = (struct iwreq *) req;
 
 		size = wrq->u.data.length;
 
 		if (size && wrq->u.data.pointer) {
-
-			buff = memdup_user(wrq->u.data.pointer, wrq->u.data.length);
+			buff = memdup_user(wrq->u.data.pointer,
+					   wrq->u.data.length);
 			if (IS_ERR(buff))
 				return PTR_ERR(buff);
 
 			if (strncasecmp(buff, "RSSI", length) == 0) {
-				priv = wiphy_priv(nic->wilc_netdev->ieee80211_ptr->wiphy);
-				s32Error = host_int_get_rssi(priv->hWILCWFIDrv, &(rssi));
-				if (s32Error)
+				priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy);
+				ret = wilc_get_rssi(vif, &rssi);
+				if (ret)
 					PRINT_ER("Failed to send get rssi param's message queue ");
 				PRINT_INFO(GENERIC_DBG, "RSSI :%d\n", rssi);
 
-				/*Rounding up the rssi negative value*/
 				rssi += 5;
 
 				snprintf(buff, size, "rssi %d", rssi);
 
 				if (copy_to_user(wrq->u.data.pointer, buff, size)) {
 					PRINT_ER("%s: failed to copy data to user buffer\n", __func__);
-					s32Error = -EFAULT;
+					ret = -EFAULT;
 					goto done;
 				}
 			}
@@ -1546,7 +1312,7 @@ int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
 	default:
 	{
 		PRINT_INFO(GENERIC_DBG, "Command - %d - has been received\n", cmd);
-		s32Error = -EOPNOTSUPP;
+		ret = -EOPNOTSUPP;
 		goto done;
 	}
 	}
@@ -1555,64 +1321,47 @@ done:
 
 	kfree(buff);
 
-	return s32Error;
+	return ret;
 }
 
-void frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset)
+void wilc_frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset)
 {
-
 	unsigned int frame_len = 0;
 	int stats;
 	unsigned char *buff_to_send = NULL;
 	struct sk_buff *skb;
 	struct net_device *wilc_netdev;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
-	wilc_netdev = GetIfHandler(wilc, buff);
-	if (wilc_netdev == NULL)
+	wilc_netdev = get_if_handler(wilc, buff);
+	if (!wilc_netdev)
 		return;
 
 	buff += pkt_offset;
-	nic = netdev_priv(wilc_netdev);
+	vif = netdev_priv(wilc_netdev);
 
 	if (size > 0) {
-
 		frame_len = size;
 		buff_to_send = buff;
 
-		/* Need to send the packet up to the host, allocate a skb buffer */
 		skb = dev_alloc_skb(frame_len);
-		if (skb == NULL) {
+		if (!skb) {
 			PRINT_ER("Low memory - packet droped\n");
 			return;
 		}
 
-		if (wilc == NULL || wilc_netdev == NULL)
+		if (!wilc || !wilc_netdev)
 			PRINT_ER("wilc_netdev in wilc is NULL");
 		skb->dev = wilc_netdev;
 
-		if (skb->dev == NULL)
+		if (!skb->dev)
 			PRINT_ER("skb->dev is NULL\n");
 
-		/*
-		 * for(i=0;i<40;i++)
-		 * {
-		 *      if(i<frame_len)
-		 *              WILC_PRINTF("buff_to_send[%d]=%2x\n",i,buff_to_send[i]);
-		 *
-		 * }*/
-
-		/* skb_put(skb, frame_len); */
 		memcpy(skb_put(skb, frame_len), buff_to_send, frame_len);
 
-		/* WILC_PRINTF("After MEM_CPY\n"); */
-
-		/* nic = netdev_priv(wilc_netdev); */
-
 		skb->protocol = eth_type_trans(skb, wilc_netdev);
-		/* Send the packet to the stack by giving it to the bridge */
-		nic->netstats.rx_packets++;
-		nic->netstats.rx_bytes += frame_len;
+		vif->netstats.rx_packets++;
+		vif->netstats.rx_bytes += frame_len;
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 		stats = netif_rx(skb);
 		PRINT_D(RX_DBG, "netif_rx ret value is: %d\n", stats);
@@ -1622,211 +1371,132 @@ void frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset)
 void WILC_WFI_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size)
 {
 	int i = 0;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
-	/*Pass the frame on the monitor interface, if any.*/
-	/*Otherwise, pass it on p2p0 netdev, if registered on it*/
 	for (i = 0; i < wilc->vif_num; i++) {
-		nic = netdev_priv(wilc->vif[i].ndev);
-		if (nic->monitor_flag) {
+		vif = netdev_priv(wilc->vif[i]->ndev);
+		if (vif->monitor_flag) {
 			WILC_WFI_monitor_rx(buff, size);
 			return;
 		}
 	}
 
-	nic = netdev_priv(wilc->vif[1].ndev); /* p2p0 */
-	if ((buff[0] == nic->g_struct_frame_reg[0].frame_type && nic->g_struct_frame_reg[0].reg) ||
-	    (buff[0] == nic->g_struct_frame_reg[1].frame_type && nic->g_struct_frame_reg[1].reg))
-		WILC_WFI_p2p_rx(wilc->vif[1].ndev, buff, size);
+	vif = netdev_priv(wilc->vif[1]->ndev);
+	if ((buff[0] == vif->g_struct_frame_reg[0].frame_type && vif->g_struct_frame_reg[0].reg) ||
+	    (buff[0] == vif->g_struct_frame_reg[1].frame_type && vif->g_struct_frame_reg[1].reg))
+		WILC_WFI_p2p_rx(wilc->vif[1]->ndev, buff, size);
 }
 
-void wl_wlan_cleanup(void)
+void wilc_netdev_cleanup(struct wilc *wilc)
 {
 	int i = 0;
-	perInterface_wlan_t *nic[NUM_CONCURRENT_IFC];
+	struct wilc_vif *vif[NUM_CONCURRENT_IFC];
 
-	if (g_linux_wlan &&
-	   (g_linux_wlan->vif[0].ndev || g_linux_wlan->vif[1].ndev)) {
+	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
 		unregister_inetaddr_notifier(&g_dev_notifier);
 
 		for (i = 0; i < NUM_CONCURRENT_IFC; i++)
-			nic[i] = netdev_priv(g_linux_wlan->vif[i].ndev);
+			vif[i] = netdev_priv(wilc->vif[i]->ndev);
 	}
 
-	if (g_linux_wlan && g_linux_wlan->firmware)
-		release_firmware(g_linux_wlan->firmware);
+	if (wilc && wilc->firmware)
+		release_firmware(wilc->firmware);
 
-	if (g_linux_wlan &&
-	   (g_linux_wlan->vif[0].ndev || g_linux_wlan->vif[1].ndev)) {
-		linux_wlan_lock_timeout(&close_exit_sync, 12 * 1000);
+	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
+		wilc_lock_timeout(wilc, &close_exit_sync, 12 * 1000);
 
 		for (i = 0; i < NUM_CONCURRENT_IFC; i++)
-			if (g_linux_wlan->vif[i].ndev)
-				if (nic[i]->mac_opened)
-					mac_close(g_linux_wlan->vif[i].ndev);
+			if (wilc->vif[i]->ndev)
+				if (vif[i]->mac_opened)
+					wilc_mac_close(wilc->vif[i]->ndev);
 
 		for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
-			unregister_netdev(g_linux_wlan->vif[i].ndev);
-			wilc_free_wiphy(g_linux_wlan->vif[i].ndev);
-			free_netdev(g_linux_wlan->vif[i].ndev);
+			unregister_netdev(wilc->vif[i]->ndev);
+			wilc_free_wiphy(wilc->vif[i]->ndev);
+			free_netdev(wilc->vif[i]->ndev);
 		}
 	}
 
-	kfree(g_linux_wlan);
-
-#if defined(WILC_DEBUGFS)
-	wilc_debugfs_remove();
-#endif
-	linux_wlan_device_detection(0);
-	linux_wlan_device_power(0);
+	kfree(wilc);
 }
+EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
 
-int wilc_netdev_init(struct wilc **wilc)
+int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
+		     int gpio, const struct wilc_hif_func *ops)
 {
 	int i;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct net_device *ndev;
+	struct wilc *wl;
 
 	sema_init(&close_exit_sync, 0);
 
-	/*create the common structure*/
-	g_linux_wlan = kzalloc(sizeof(*g_linux_wlan), GFP_KERNEL);
-	if (!g_linux_wlan)
+	wl = kzalloc(sizeof(*wl), GFP_KERNEL);
+	if (!wl)
 		return -ENOMEM;
 
-	*wilc = g_linux_wlan;
+	*wilc = wl;
+	wl->io_type = io_type;
+	wl->gpio = gpio;
+	wl->hif_func = ops;
 
 	register_inetaddr_notifier(&g_dev_notifier);
 
 	for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
-		/*allocate first ethernet device with perinterface_wlan_t as its private data*/
-		ndev = alloc_etherdev(sizeof(perInterface_wlan_t));
+		ndev = alloc_etherdev(sizeof(struct wilc_vif));
 		if (!ndev) {
 			PRINT_ER("Failed to allocate ethernet dev\n");
 			return -1;
 		}
 
-		nic = netdev_priv(ndev);
-		memset(nic, 0, sizeof(perInterface_wlan_t));
+		vif = netdev_priv(ndev);
+		memset(vif, 0, sizeof(struct wilc_vif));
 
-		/*Name the Devices*/
-		if (i == 0) {
-		#if defined(NM73131)    /* tony, 2012-09-20 */
-			strcpy(ndev->name, "wilc_eth%d");
-		#elif defined(PLAT_CLM9722)                     /* rachel */
-			strcpy(ndev->name, "eth%d");
-		#else /* PANDA_BOARD, PLAT_ALLWINNER_A10, PLAT_ALLWINNER_A20, PLAT_ALLWINNER_A31, PLAT_AML8726_M3 or PLAT_WMS8304 */
+		if (i == 0)
 			strcpy(ndev->name, "wlan%d");
-		#endif
-		} else
+		else
 			strcpy(ndev->name, "p2p%d");
 
-		nic->u8IfIdx = g_linux_wlan->vif_num;
-		nic->wilc_netdev = ndev;
-		nic->wilc = *wilc;
-		g_linux_wlan->vif[g_linux_wlan->vif_num].ndev = ndev;
-		g_linux_wlan->vif_num++;
+		vif->u8IfIdx = wl->vif_num;
+		vif->wilc = *wilc;
+		wl->vif[i] = vif;
+		wl->vif[wl->vif_num]->ndev = ndev;
+		wl->vif_num++;
 		ndev->netdev_ops = &wilc_netdev_ops;
 
 		{
 			struct wireless_dev *wdev;
-			/*Register WiFi*/
-			wdev = wilc_create_wiphy(ndev);
+			wdev = wilc_create_wiphy(ndev, dev);
 
-			#ifdef WILC_SDIO
-			/* set netdev, tony */
-			SET_NETDEV_DEV(ndev, &local_sdio_func->dev);
-			#endif
+			if (dev)
+				SET_NETDEV_DEV(ndev, dev);
 
-			if (wdev == NULL) {
+			if (!wdev) {
 				PRINT_ER("Can't register WILC Wiphy\n");
 				return -1;
 			}
 
-			/*linking the wireless_dev structure with the netdevice*/
-			nic->wilc_netdev->ieee80211_ptr = wdev;
-			nic->wilc_netdev->ml_priv = nic;
-			wdev->netdev = nic->wilc_netdev;
-			nic->netstats.rx_packets = 0;
-			nic->netstats.tx_packets = 0;
-			nic->netstats.rx_bytes = 0;
-			nic->netstats.tx_bytes = 0;
-
+			vif->ndev->ieee80211_ptr = wdev;
+			vif->ndev->ml_priv = vif;
+			wdev->netdev = vif->ndev;
+			vif->netstats.rx_packets = 0;
+			vif->netstats.tx_packets = 0;
+			vif->netstats.rx_bytes = 0;
+			vif->netstats.tx_bytes = 0;
 		}
 
 		if (register_netdev(ndev)) {
-			PRINT_ER("Device couldn't be registered - %s\n", ndev->name);
-			return -1; /* ERROR */
+			PRINT_ER("Device couldn't be registered - %s\n",
+				 ndev->name);
+			return -1;
 		}
 
-		nic->iftype = STATION_MODE;
-		nic->mac_opened = 0;
-
-	}
-
-	#ifndef WILC_SDIO
-	if (!linux_spi_init(&g_linux_wlan->wilc_spidev)) {
-		PRINT_ER("Can't initialize SPI\n");
-		return -1; /* ERROR */
+		vif->iftype = STATION_MODE;
+		vif->mac_opened = 0;
 	}
-	g_linux_wlan->wilc_spidev = wilc_spi_dev;
-	#else
-	g_linux_wlan->wilc_sdio_func = local_sdio_func;
-	#endif
 
 	return 0;
 }
-
-/*The 1st function called after module inserted*/
-static int __init init_wilc_driver(void)
-{
-#ifdef WILC_SPI
-	struct wilc *wilc;
-#endif
-
-#if defined(WILC_DEBUGFS)
-	if (wilc_debugfs_init() < 0) {
-		PRINT_D(GENERIC_DBG, "fail to create debugfs for wilc driver\n");
-		return -1;
-	}
-#endif
-
-	printk("IN INIT FUNCTION\n");
-	printk("*** WILC1000 driver VERSION=[10.2] FW_VER=[10.2] ***\n");
-
-	linux_wlan_device_power(1);
-	msleep(100);
-	linux_wlan_device_detection(1);
-
-#ifdef WILC_SDIO
-	{
-		int ret;
-
-		ret = sdio_register_driver(&wilc_bus);
-		if (ret < 0)
-			PRINT_D(INIT_DBG, "init_wilc_driver: Failed register sdio driver\n");
-
-		return ret;
-	}
-#else
-	PRINT_D(INIT_DBG, "Initializing netdev\n");
-	if (wilc_netdev_init(&wilc))
-		PRINT_ER("Couldn't initialize netdev\n");
-	return 0;
-#endif
-}
-late_initcall(init_wilc_driver);
-
-static void __exit exit_wilc_driver(void)
-{
-#ifndef WILC_SDIO
-	PRINT_D(INIT_DBG, "SPI unregister...\n");
-	spi_unregister_driver(&wilc_bus);
-#else
-	PRINT_D(INIT_DBG, "SDIO unregister...\n");
-	sdio_unregister_driver(&wilc_bus);
-#endif
-}
-module_exit(exit_wilc_driver);
+EXPORT_SYMBOL_GPL(wilc_netdev_init);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/wilc1000/linux_wlan_common.h b/drivers/staging/wilc1000/linux_wlan_common.h
index 2b76e41ebd4d..5d40f05124c1 100644
--- a/drivers/staging/wilc1000/linux_wlan_common.h
+++ b/drivers/staging/wilc1000/linux_wlan_common.h
@@ -38,11 +38,8 @@ enum debug_region {
 #define FIRM_DBG                (1 << Firmware_debug)
 
 #if defined (WILC_DEBUGFS)
-int wilc_debugfs_init(void);
-void wilc_debugfs_remove(void);
-
-extern atomic_t REGION;
-extern atomic_t DEBUG_LEVEL;
+extern atomic_t WILC_REGION;
+extern atomic_t WILC_DEBUG_LEVEL;
 
 #define DEBUG           BIT(0)
 #define INFO            BIT(1)
@@ -51,8 +48,8 @@ extern atomic_t DEBUG_LEVEL;
 
 #define PRINT_D(region, ...)						\
 	do {								\
-		if ((atomic_read(&DEBUG_LEVEL) & DEBUG) &&		\
-		   ((atomic_read(&REGION)) & (region))) {		\
+		if ((atomic_read(&WILC_DEBUG_LEVEL) & DEBUG) &&	\
+		   ((atomic_read(&WILC_REGION)) & (region))) {	\
 			printk("DBG [%s: %d]", __func__, __LINE__);	\
 			printk(__VA_ARGS__);				\
 		}							\
@@ -60,8 +57,8 @@ extern atomic_t DEBUG_LEVEL;
 
 #define PRINT_INFO(region, ...)						\
 	do {								\
-		if ((atomic_read(&DEBUG_LEVEL) & INFO) &&		\
-		   ((atomic_read(&REGION)) & (region))) {		\
+		if ((atomic_read(&WILC_DEBUG_LEVEL) & INFO) &&	\
+		   ((atomic_read(&WILC_REGION)) & (region))) {	\
 			printk("INFO [%s]", __func__);			\
 			printk(__VA_ARGS__);				\
 		}							\
@@ -69,8 +66,8 @@ extern atomic_t DEBUG_LEVEL;
 
 #define PRINT_WRN(region, ...)						\
 	do {								\
-		if ((atomic_read(&DEBUG_LEVEL) & WRN) &&		\
-		   ((atomic_read(&REGION)) & (region))) {		\
+		if ((atomic_read(&WILC_DEBUG_LEVEL) & WRN) &&	\
+		   ((atomic_read(&WILC_REGION)) & (region))) {	\
 			printk("WRN [%s: %d]", __func__, __LINE__);	\
 			printk(__VA_ARGS__);				\
 		}							\
@@ -78,7 +75,7 @@ extern atomic_t DEBUG_LEVEL;
 
 #define PRINT_ER(...)							\
 	do {								\
-		if ((atomic_read(&DEBUG_LEVEL) & ERR)) {		\
+		if ((atomic_read(&WILC_DEBUG_LEVEL) & ERR)) {	\
 			printk("ERR [%s: %d]", __func__, __LINE__);	\
 			printk(__VA_ARGS__);				\
 		}							\
@@ -121,14 +118,13 @@ extern atomic_t DEBUG_LEVEL;
 		printk("ERR [%s: %d]", __func__, __LINE__);		\
 		printk(__VA_ARGS__);					\
 	} while (0)
+
 #endif
 
 #define FN_IN   /* PRINT_D(">>> \n") */
 #define FN_OUT  /* PRINT_D("<<<\n") */
 
-#ifdef MEMORY_STATIC
 #define LINUX_RX_SIZE	(96 * 1024)
-#endif
 #define LINUX_TX_SIZE	(64 * 1024)
 
 
diff --git a/drivers/staging/wilc1000/linux_wlan_sdio.c b/drivers/staging/wilc1000/linux_wlan_sdio.c
deleted file mode 100644
index 4aff953a88f1..000000000000
--- a/drivers/staging/wilc1000/linux_wlan_sdio.c
+++ /dev/null
@@ -1,251 +0,0 @@
-#include "wilc_wfi_netdevice.h"
-
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/sdio_ids.h>
-#include <linux/mmc/sdio.h>
-#include <linux/mmc/host.h>
-
-
-
-#define SDIO_MODALIAS "wilc1000_sdio"
-
-#if defined(CUSTOMER_PLATFORM)
-/* TODO : User have to stable bus clock as user's environment. */
- #ifdef MAX_BUS_SPEED
- #define MAX_SPEED MAX_BUS_SPEED
- #else
- #define MAX_SPEED 50000000
- #endif
-#else
- #define MAX_SPEED (6 * 1000000) /* Max 50M */
-#endif
-
-struct wilc_sdio {
-	struct sdio_func *func;
-	struct wilc *wilc;
-};
-
-struct sdio_func *local_sdio_func;
-
-static unsigned int sdio_default_speed;
-
-#define SDIO_VENDOR_ID_WILC 0x0296
-#define SDIO_DEVICE_ID_WILC 0x5347
-
-static const struct sdio_device_id wilc_sdio_ids[] = {
-	{ SDIO_DEVICE(SDIO_VENDOR_ID_WILC, SDIO_DEVICE_ID_WILC) },
-	{ },
-};
-
-
-static void wilc_sdio_interrupt(struct sdio_func *func)
-{
-	struct wilc_sdio *wl_sdio;
-
-	wl_sdio = sdio_get_drvdata(func);
-
-#ifndef WILC_SDIO_IRQ_GPIO
-	sdio_release_host(func);
-	wilc_handle_isr(wl_sdio->wilc);
-	sdio_claim_host(func);
-#endif
-}
-
-
-int linux_sdio_cmd52(sdio_cmd52_t *cmd)
-{
-	struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
-	int ret;
-	u8 data;
-
-	sdio_claim_host(func);
-
-	func->num = cmd->function;
-	if (cmd->read_write) {  /* write */
-		if (cmd->raw) {
-			sdio_writeb(func, cmd->data, cmd->address, &ret);
-			data = sdio_readb(func, cmd->address, &ret);
-			cmd->data = data;
-		} else {
-			sdio_writeb(func, cmd->data, cmd->address, &ret);
-		}
-	} else {        /* read */
-		data = sdio_readb(func, cmd->address, &ret);
-		cmd->data = data;
-	}
-
-	sdio_release_host(func);
-
-	if (ret < 0) {
-		PRINT_ER("wilc_sdio_cmd52..failed, err(%d)\n", ret);
-		return 0;
-	}
-	return 1;
-}
-
-
-int linux_sdio_cmd53(sdio_cmd53_t *cmd)
-{
-	struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
-	int size, ret;
-
-	sdio_claim_host(func);
-
-	func->num = cmd->function;
-	func->cur_blksize = cmd->block_size;
-	if (cmd->block_mode)
-		size = cmd->count * cmd->block_size;
-	else
-		size = cmd->count;
-
-	if (cmd->read_write) {  /* write */
-		ret = sdio_memcpy_toio(func, cmd->address, (void *)cmd->buffer, size);
-	} else {        /* read */
-		ret = sdio_memcpy_fromio(func, (void *)cmd->buffer, cmd->address,  size);
-	}
-
-	sdio_release_host(func);
-
-
-	if (ret < 0) {
-		PRINT_ER("wilc_sdio_cmd53..failed, err(%d)\n", ret);
-		return 0;
-	}
-
-	return 1;
-}
-
-static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
-{
-	struct wilc_sdio *wl_sdio;
-	struct wilc *wilc;
-
-	PRINT_D(INIT_DBG, "probe function\n");
-	wl_sdio = kzalloc(sizeof(struct wilc_sdio), GFP_KERNEL);
-	if (!wl_sdio)
-		return -ENOMEM;
-
-	PRINT_D(INIT_DBG, "Initializing netdev\n");
-	local_sdio_func = func;
-	if (wilc_netdev_init(&wilc)) {
-		PRINT_ER("Couldn't initialize netdev\n");
-		kfree(wl_sdio);
-		return -1;
-	}
-	wl_sdio->func = func;
-	wl_sdio->wilc = wilc;
-	sdio_set_drvdata(func, wl_sdio);
-
-	printk("Driver Initializing success\n");
-	return 0;
-}
-
-static void linux_sdio_remove(struct sdio_func *func)
-{
-	struct wilc_sdio *wl_sdio;
-
-	wl_sdio = sdio_get_drvdata(func);
-	wl_wlan_cleanup();
-	kfree(wl_sdio);
-}
-
-struct sdio_driver wilc_bus = {
-	.name		= SDIO_MODALIAS,
-	.id_table	= wilc_sdio_ids,
-	.probe		= linux_sdio_probe,
-	.remove		= linux_sdio_remove,
-};
-
-int enable_sdio_interrupt(void)
-{
-	int ret = 0;
-#ifndef WILC_SDIO_IRQ_GPIO
-
-	sdio_claim_host(local_sdio_func);
-	ret = sdio_claim_irq(local_sdio_func, wilc_sdio_interrupt);
-	sdio_release_host(local_sdio_func);
-
-	if (ret < 0) {
-		PRINT_ER("can't claim sdio_irq, err(%d)\n", ret);
-		ret = -EIO;
-	}
-#endif
-	return ret;
-}
-
-void disable_sdio_interrupt(void)
-{
-
-#ifndef WILC_SDIO_IRQ_GPIO
-	int ret;
-
-	PRINT_D(INIT_DBG, "disable_sdio_interrupt IN\n");
-
-	sdio_claim_host(local_sdio_func);
-	ret = sdio_release_irq(local_sdio_func);
-	if (ret < 0) {
-		PRINT_ER("can't release sdio_irq, err(%d)\n", ret);
-	}
-	sdio_release_host(local_sdio_func);
-
-	PRINT_D(INIT_DBG, "disable_sdio_interrupt OUT\n");
-#endif
-}
-
-static int linux_sdio_set_speed(int speed)
-{
-	struct mmc_ios ios;
-
-	sdio_claim_host(local_sdio_func);
-
-	memcpy((void *)&ios, (void *)&local_sdio_func->card->host->ios, sizeof(struct mmc_ios));
-	local_sdio_func->card->host->ios.clock = speed;
-	ios.clock = speed;
-	local_sdio_func->card->host->ops->set_ios(local_sdio_func->card->host, &ios);
-	sdio_release_host(local_sdio_func);
-	PRINT_INFO(INIT_DBG, "@@@@@@@@@@@@ change SDIO speed to %d @@@@@@@@@\n", speed);
-
-	return 1;
-}
-
-static int linux_sdio_get_speed(void)
-{
-	return local_sdio_func->card->host->ios.clock;
-}
-
-int linux_sdio_init(void *pv)
-{
-
-	/**
-	 *      TODO :
-	 **/
-
-
-	sdio_default_speed = linux_sdio_get_speed();
-	return 1;
-}
-
-void linux_sdio_deinit(void *pv)
-{
-
-	/**
-	 *      TODO :
-	 **/
-
-
-	sdio_unregister_driver(&wilc_bus);
-}
-
-int linux_sdio_set_max_speed(void)
-{
-	return linux_sdio_set_speed(MAX_SPEED);
-}
-
-int linux_sdio_set_default_speed(void)
-{
-	return linux_sdio_set_speed(sdio_default_speed);
-}
-
-
-
diff --git a/drivers/staging/wilc1000/linux_wlan_sdio.h b/drivers/staging/wilc1000/linux_wlan_sdio.h
deleted file mode 100644
index 4b515f5108e7..000000000000
--- a/drivers/staging/wilc1000/linux_wlan_sdio.h
+++ /dev/null
@@ -1,14 +0,0 @@
-extern struct sdio_func *local_sdio_func;
-extern struct sdio_driver wilc_bus;
-
-#include <linux/mmc/sdio_func.h>
-
-int linux_sdio_init(void *);
-void linux_sdio_deinit(void *);
-int linux_sdio_cmd52(sdio_cmd52_t *cmd);
-int linux_sdio_cmd53(sdio_cmd53_t *cmd);
-int enable_sdio_interrupt(void);
-void disable_sdio_interrupt(void);
-int linux_sdio_set_max_speed(void);
-int linux_sdio_set_default_speed(void);
-
diff --git a/drivers/staging/wilc1000/linux_wlan_spi.c b/drivers/staging/wilc1000/linux_wlan_spi.c
deleted file mode 100644
index 039d06192d6b..000000000000
--- a/drivers/staging/wilc1000/linux_wlan_spi.c
+++ /dev/null
@@ -1,409 +0,0 @@
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/cdev.h>
-#include <linux/uaccess.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-
-#include "linux_wlan_common.h"
-#include "linux_wlan_spi.h"
-
-#define USE_SPI_DMA     0       /* johnny add */
-
-#ifdef WILC_ASIC_A0
- #if defined(PLAT_PANDA_ES_OMAP4460)
-  #define MIN_SPEED 12000000
-  #define MAX_SPEED 24000000
- #elif defined(PLAT_WMS8304)
-  #define MIN_SPEED 12000000
-  #define MAX_SPEED 24000000 /* 4000000 */
- #elif defined(CUSTOMER_PLATFORM)
-/*
-  TODO : define Clock speed under 48M.
- *
- * ex)
- * #define MIN_SPEED 24000000
- * #define MAX_SPEED 48000000
- */
- #else
-  #define MIN_SPEED 24000000
-  #define MAX_SPEED 48000000
- #endif
-#else /* WILC_ASIC_A0 */
-/* Limit clk to 6MHz on FPGA. */
- #define MIN_SPEED 6000000
- #define MAX_SPEED 6000000
-#endif /* WILC_ASIC_A0 */
-
-static u32 SPEED = MIN_SPEED;
-
-struct spi_device *wilc_spi_dev;
-void linux_spi_deinit(void *vp);
-
-static int __init wilc_bus_probe(struct spi_device *spi)
-{
-
-	PRINT_D(BUS_DBG, "spiModalias: %s\n", spi->modalias);
-	PRINT_D(BUS_DBG, "spiMax-Speed: %d\n", spi->max_speed_hz);
-	wilc_spi_dev = spi;
-
-	printk("Driver Initializing success\n");
-	return 0;
-}
-
-static int __exit wilc_bus_remove(struct spi_device *spi)
-{
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id wilc1000_of_match[] = {
-	{ .compatible = "atmel,wilc_spi", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, wilc1000_of_match);
-#endif
-
-struct spi_driver wilc_bus __refdata = {
-	.driver = {
-		.name = MODALIAS,
-#ifdef CONFIG_OF
-		.of_match_table = wilc1000_of_match,
-#endif
-	},
-	.probe =  wilc_bus_probe,
-	.remove = __exit_p(wilc_bus_remove),
-};
-
-
-void linux_spi_deinit(void *vp)
-{
-
-	spi_unregister_driver(&wilc_bus);
-
-	SPEED = MIN_SPEED;
-	PRINT_ER("@@@@@@@@@@@@ restore SPI speed to %d @@@@@@@@@\n", SPEED);
-
-}
-
-
-
-int linux_spi_init(void *vp)
-{
-	int ret = 1;
-	static int called;
-
-
-	if (called == 0) {
-		called++;
-		ret = spi_register_driver(&wilc_bus);
-	}
-
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-	return ret;
-}
-
-#if defined(PLAT_WMS8304)
-#define TXRX_PHASE_SIZE (4096)
-#endif
-
-#if defined(TXRX_PHASE_SIZE)
-
-int linux_spi_write(u8 *b, u32 len)
-{
-	int ret;
-
-	if (len > 0 && b != NULL) {
-		int i = 0;
-		int blk = len / TXRX_PHASE_SIZE;
-		int remainder = len % TXRX_PHASE_SIZE;
-
-		char *r_buffer = kzalloc(TXRX_PHASE_SIZE, GFP_KERNEL);
-		if (!r_buffer)
-			return -ENOMEM;
-
-		if (blk) {
-			while (i < blk)	{
-				struct spi_message msg;
-				struct spi_transfer tr = {
-					.tx_buf = b + (i * TXRX_PHASE_SIZE),
-					.len = TXRX_PHASE_SIZE,
-					.speed_hz = SPEED,
-					.bits_per_word = 8,
-					.delay_usecs = 0,
-				};
-
-				tr.rx_buf = r_buffer;
-
-				memset(&msg, 0, sizeof(msg));
-				spi_message_init(&msg);
-				msg.spi = wilc_spi_dev;
-				msg.is_dma_mapped = USE_SPI_DMA;
-
-				spi_message_add_tail(&tr, &msg);
-				ret = spi_sync(wilc_spi_dev, &msg);
-				if (ret < 0) {
-					PRINT_ER("SPI transaction failed\n");
-				}
-				i++;
-
-			}
-		}
-		if (remainder) {
-			struct spi_message msg;
-			struct spi_transfer tr = {
-				.tx_buf = b + (blk * TXRX_PHASE_SIZE),
-				.len = remainder,
-				.speed_hz = SPEED,
-				.bits_per_word = 8,
-				.delay_usecs = 0,
-			};
-			tr.rx_buf = r_buffer;
-
-			memset(&msg, 0, sizeof(msg));
-			spi_message_init(&msg);
-			msg.spi = wilc_spi_dev;
-			msg.is_dma_mapped = USE_SPI_DMA;                                /* rachel */
-
-			spi_message_add_tail(&tr, &msg);
-			ret = spi_sync(wilc_spi_dev, &msg);
-			if (ret < 0) {
-				PRINT_ER("SPI transaction failed\n");
-			}
-		}
-		kfree(r_buffer);
-	} else {
-		PRINT_ER("can't write data with the following length: %d\n", len);
-		PRINT_ER("FAILED due to NULL buffer or ZERO length check the following length: %d\n", len);
-		ret = -1;
-	}
-
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-	return ret;
-
-}
-
-#else
-int linux_spi_write(u8 *b, u32 len)
-{
-
-	int ret;
-	struct spi_message msg;
-
-	if (len > 0 && b != NULL) {
-		struct spi_transfer tr = {
-			.tx_buf = b,
-			.len = len,
-			.speed_hz = SPEED,
-			.delay_usecs = 0,
-		};
-		char *r_buffer = kzalloc(len, GFP_KERNEL);
-		if (!r_buffer)
-			return -ENOMEM;
-
-		tr.rx_buf = r_buffer;
-		PRINT_D(BUS_DBG, "Request writing %d bytes\n", len);
-
-		memset(&msg, 0, sizeof(msg));
-		spi_message_init(&msg);
-/* [[johnny add */
-		msg.spi = wilc_spi_dev;
-		msg.is_dma_mapped = USE_SPI_DMA;
-/* ]] */
-		spi_message_add_tail(&tr, &msg);
-
-		ret = spi_sync(wilc_spi_dev, &msg);
-		if (ret < 0) {
-			PRINT_ER("SPI transaction failed\n");
-		}
-
-		kfree(r_buffer);
-	} else {
-		PRINT_ER("can't write data with the following length: %d\n", len);
-		PRINT_ER("FAILED due to NULL buffer or ZERO length check the following length: %d\n", len);
-		ret = -1;
-	}
-
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-
-	return ret;
-}
-
-#endif
-
-#if defined(TXRX_PHASE_SIZE)
-
-int linux_spi_read(u8 *rb, u32 rlen)
-{
-	int ret;
-
-	if (rlen > 0) {
-		int i = 0;
-
-		int blk = rlen / TXRX_PHASE_SIZE;
-		int remainder = rlen % TXRX_PHASE_SIZE;
-
-		char *t_buffer = kzalloc(TXRX_PHASE_SIZE, GFP_KERNEL);
-		if (!t_buffer)
-			return -ENOMEM;
-
-		if (blk) {
-			while (i < blk)	{
-				struct spi_message msg;
-				struct spi_transfer tr = {
-					.rx_buf = rb + (i * TXRX_PHASE_SIZE),
-					.len = TXRX_PHASE_SIZE,
-					.speed_hz = SPEED,
-					.bits_per_word = 8,
-					.delay_usecs = 0,
-				};
-				tr.tx_buf = t_buffer;
-
-				memset(&msg, 0, sizeof(msg));
-				spi_message_init(&msg);
-				msg.spi = wilc_spi_dev;
-				msg.is_dma_mapped = USE_SPI_DMA;
-
-				spi_message_add_tail(&tr, &msg);
-				ret = spi_sync(wilc_spi_dev, &msg);
-				if (ret < 0) {
-					PRINT_ER("SPI transaction failed\n");
-				}
-				i++;
-			}
-		}
-		if (remainder) {
-			struct spi_message msg;
-			struct spi_transfer tr = {
-				.rx_buf = rb + (blk * TXRX_PHASE_SIZE),
-				.len = remainder,
-				.speed_hz = SPEED,
-				.bits_per_word = 8,
-				.delay_usecs = 0,
-			};
-			tr.tx_buf = t_buffer;
-
-			memset(&msg, 0, sizeof(msg));
-			spi_message_init(&msg);
-			msg.spi = wilc_spi_dev;
-			msg.is_dma_mapped = USE_SPI_DMA;                                /* rachel */
-
-			spi_message_add_tail(&tr, &msg);
-			ret = spi_sync(wilc_spi_dev, &msg);
-			if (ret < 0) {
-				PRINT_ER("SPI transaction failed\n");
-			}
-		}
-
-		kfree(t_buffer);
-	} else {
-		PRINT_ER("can't read data with the following length: %u\n", rlen);
-		ret = -1;
-	}
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-	return ret;
-}
-
-#else
-int linux_spi_read(u8 *rb, u32 rlen)
-{
-
-	int ret;
-
-	if (rlen > 0) {
-		struct spi_message msg;
-		struct spi_transfer tr = {
-			.rx_buf = rb,
-			.len = rlen,
-			.speed_hz = SPEED,
-			.delay_usecs = 0,
-
-		};
-		char *t_buffer = kzalloc(rlen, GFP_KERNEL);
-		if (!t_buffer)
-			return -ENOMEM;
-
-		tr.tx_buf = t_buffer;
-
-		memset(&msg, 0, sizeof(msg));
-		spi_message_init(&msg);
-/* [[ johnny add */
-		msg.spi = wilc_spi_dev;
-		msg.is_dma_mapped = USE_SPI_DMA;
-/* ]] */
-		spi_message_add_tail(&tr, &msg);
-
-		ret = spi_sync(wilc_spi_dev, &msg);
-		if (ret < 0) {
-			PRINT_ER("SPI transaction failed\n");
-		}
-		kfree(t_buffer);
-	} else {
-		PRINT_ER("can't read data with the following length: %u\n", rlen);
-		ret = -1;
-	}
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-	return ret;
-}
-
-#endif
-
-int linux_spi_write_read(u8 *wb, u8 *rb, u32 rlen)
-{
-
-	int ret;
-
-	if (rlen > 0) {
-		struct spi_message msg;
-		struct spi_transfer tr = {
-			.rx_buf = rb,
-			.tx_buf = wb,
-			.len = rlen,
-			.speed_hz = SPEED,
-			.bits_per_word = 8,
-			.delay_usecs = 0,
-
-		};
-
-		memset(&msg, 0, sizeof(msg));
-		spi_message_init(&msg);
-		msg.spi = wilc_spi_dev;
-		msg.is_dma_mapped = USE_SPI_DMA;
-
-		spi_message_add_tail(&tr, &msg);
-		ret = spi_sync(wilc_spi_dev, &msg);
-		if (ret < 0) {
-			PRINT_ER("SPI transaction failed\n");
-		}
-	} else {
-		PRINT_ER("can't read data with the following length: %u\n", rlen);
-		ret = -1;
-	}
-	/* change return value to match WILC interface */
-	(ret < 0) ? (ret = 0) : (ret = 1);
-
-	return ret;
-}
-
-int linux_spi_set_max_speed(void)
-{
-	SPEED = MAX_SPEED;
-
-	PRINT_INFO(BUS_DBG, "@@@@@@@@@@@@ change SPI speed to %d @@@@@@@@@\n", SPEED);
-	return 1;
-}
diff --git a/drivers/staging/wilc1000/linux_wlan_spi.h b/drivers/staging/wilc1000/linux_wlan_spi.h
deleted file mode 100644
index 7356785296f9..000000000000
--- a/drivers/staging/wilc1000/linux_wlan_spi.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef LINUX_WLAN_SPI_H
-#define LINUX_WLAN_SPI_H
-
-#include <linux/spi/spi.h>
-extern struct spi_device *wilc_spi_dev;
-extern struct spi_driver wilc_bus;
-
-int linux_spi_init(void *vp);
-void linux_spi_deinit(void *vp);
-int linux_spi_write(u8 *b, u32 len);
-int linux_spi_read(u8 *rb, u32 rlen);
-int linux_spi_write_read(u8 *wb, u8 *rb, u32 rlen);
-int linux_spi_set_max_speed(void);
-#endif
diff --git a/drivers/staging/wilc1000/wilc_debugfs.c b/drivers/staging/wilc1000/wilc_debugfs.c
index ae111862e7a9..27c653a0cdf9 100644
--- a/drivers/staging/wilc1000/wilc_debugfs.c
+++ b/drivers/staging/wilc1000/wilc_debugfs.c
@@ -26,8 +26,10 @@ static struct dentry *wilc_dir;
 
 #define DBG_REGION_ALL	(GENERIC_DBG | HOSTAPD_DBG | HOSTINF_DBG | CORECONFIG_DBG | CFG80211_DBG | INT_DBG | TX_DBG | RX_DBG | LOCK_DBG | INIT_DBG | BUS_DBG | MEM_DBG)
 #define DBG_LEVEL_ALL	(DEBUG | INFO | WRN | ERR)
-atomic_t REGION = ATOMIC_INIT(INIT_DBG | GENERIC_DBG | CFG80211_DBG | FIRM_DBG | HOSTAPD_DBG);
-atomic_t DEBUG_LEVEL = ATOMIC_INIT(ERR);
+atomic_t WILC_REGION = ATOMIC_INIT(INIT_DBG | GENERIC_DBG | CFG80211_DBG | FIRM_DBG | HOSTAPD_DBG);
+EXPORT_SYMBOL_GPL(WILC_REGION);
+atomic_t WILC_DEBUG_LEVEL = ATOMIC_INIT(ERR);
+EXPORT_SYMBOL_GPL(WILC_DEBUG_LEVEL);
 
 /*
  * --------------------------------------------------------------------------------
@@ -43,7 +45,7 @@ static ssize_t wilc_debug_level_read(struct file *file, char __user *userbuf, si
 	if (*ppos > 0)
 		return 0;
 
-	res = scnprintf(buf, sizeof(buf), "Debug Level: %x\n", atomic_read(&DEBUG_LEVEL));
+	res = scnprintf(buf, sizeof(buf), "Debug Level: %x\n", atomic_read(&WILC_DEBUG_LEVEL));
 
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }
@@ -59,11 +61,11 @@ static ssize_t wilc_debug_level_write(struct file *filp, const char __user *buf,
 		return ret;
 
 	if (flag > DBG_LEVEL_ALL) {
-		printk("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n", __func__, flag, atomic_read(&DEBUG_LEVEL));
+		printk("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n", __func__, flag, atomic_read(&WILC_DEBUG_LEVEL));
 		return -EINVAL;
 	}
 
-	atomic_set(&DEBUG_LEVEL, (int)flag);
+	atomic_set(&WILC_DEBUG_LEVEL, (int)flag);
 
 	if (flag == 0)
 		printk("Debug-level disabled\n");
@@ -82,7 +84,7 @@ static ssize_t wilc_debug_region_read(struct file *file, char __user *userbuf, s
 	if (*ppos > 0)
 		return 0;
 
-	res = scnprintf(buf, sizeof(buf), "Debug region: %x\n", atomic_read(&REGION));
+	res = scnprintf(buf, sizeof(buf), "Debug region: %x\n", atomic_read(&WILC_REGION));
 
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }
@@ -102,12 +104,12 @@ static ssize_t wilc_debug_region_write(struct file *filp, const char *buf, size_
 	flag = buffer[0] - '0';
 
 	if (flag > DBG_REGION_ALL) {
-		printk("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n", __func__, flag, atomic_read(&REGION));
+		printk("%s, value (0x%08x) is out of range, stay previous flag (0x%08x)\n", __func__, flag, atomic_read(&WILC_REGION));
 		return -EFAULT;
 	}
 
-	atomic_set(&REGION, (int)flag);
-	printk("new debug-region is %x\n", atomic_read(&REGION));
+	atomic_set(&WILC_REGION, (int)flag);
+	printk("new debug-region is %x\n", atomic_read(&WILC_REGION));
 
 	return count;
 }
@@ -136,7 +138,7 @@ static struct wilc_debugfs_info_t debugfs_info[] = {
 	{ "wilc_debug_region",	0666,	(INIT_DBG | GENERIC_DBG | CFG80211_DBG), FOPS(NULL, wilc_debug_region_read, wilc_debug_region_write, NULL), },
 };
 
-int wilc_debugfs_init(void)
+static int __init wilc_debugfs_init(void)
 {
 	int i;
 
@@ -171,11 +173,13 @@ int wilc_debugfs_init(void)
 	}
 	return 0;
 }
+module_init(wilc_debugfs_init);
 
-void wilc_debugfs_remove(void)
+static void __exit wilc_debugfs_remove(void)
 {
 	debugfs_remove_recursive(wilc_dir);
 }
+module_exit(wilc_debugfs_remove);
 
 #endif
 
diff --git a/drivers/staging/wilc1000/wilc_msgqueue.c b/drivers/staging/wilc1000/wilc_msgqueue.c
index 0eff121b8291..098390cdf319 100644
--- a/drivers/staging/wilc1000/wilc_msgqueue.c
+++ b/drivers/staging/wilc1000/wilc_msgqueue.c
@@ -115,7 +115,6 @@ int wilc_mq_recv(WILC_MsgQueueHandle *pHandle,
 			     u32 *pu32ReceivedLength)
 {
 	Message *pstrMessage;
-	int result = 0;
 	unsigned long flags;
 
 	if ((!pHandle) || (u32RecvBufferSize == 0)
@@ -135,12 +134,6 @@ int wilc_mq_recv(WILC_MsgQueueHandle *pHandle,
 
 	down(&pHandle->hSem);
 
-	/* other non-timeout scenarios */
-	if (result) {
-		PRINT_ER("Non-timeout\n");
-		return result;
-	}
-
 	if (pHandle->bExiting) {
 		PRINT_ER("pHandle fail\n");
 		return -EFAULT;
@@ -174,5 +167,5 @@ int wilc_mq_recv(WILC_MsgQueueHandle *pHandle,
 
 	spin_unlock_irqrestore(&pHandle->strCriticalSection, flags);
 
-	return result;
+	return 0;
 }
diff --git a/drivers/staging/wilc1000/wilc_msgqueue.h b/drivers/staging/wilc1000/wilc_msgqueue.h
index d231c334ed93..d7e0328bacee 100644
--- a/drivers/staging/wilc1000/wilc_msgqueue.h
+++ b/drivers/staging/wilc1000/wilc_msgqueue.h
@@ -35,7 +35,7 @@ typedef struct __MessageQueue_struct {
  *                              any other message queue having the same name in the system
  *  @param[in,out]	pHandle handle to the message queue object
  *  @param[in]	pstrAttrs Optional attributes, NULL for default
- *  @return		Error code indicating sucess/failure
+ *  @return		Error code indicating success/failure
  *  @author		syounan
  *  @date		30 Aug 2010
  *  @version		1.0
@@ -44,7 +44,7 @@ int wilc_mq_create(WILC_MsgQueueHandle *pHandle);
 
 /*!
  *  @brief		Sends a message
- *  @details		Sends a message, this API will block unil the message is
+ *  @details		Sends a message, this API will block until the message is
  *                              actually sent or until it is timedout (as long as the feature
  *                              CONFIG_WILC_MSG_QUEUE_TIMEOUT is enabled and pstrAttrs->u32Timeout
  *                              is not set to WILC_OS_INFINITY), zero timeout is a valid value
@@ -52,7 +52,7 @@ int wilc_mq_create(WILC_MsgQueueHandle *pHandle);
  *  @param[in]	pvSendBuffer pointer to the data to send
  *  @param[in]	u32SendBufferSize the size of the data to send
  *  @param[in]	pstrAttrs Optional attributes, NULL for default
- *  @return		Error code indicating sucess/failure
+ *  @return		Error code indicating success/failure
  *  @author		syounan
  *  @date		30 Aug 2010
  *  @version		1.0
@@ -62,7 +62,7 @@ int wilc_mq_send(WILC_MsgQueueHandle *pHandle,
 
 /*!
  *  @brief		Receives a message
- *  @details		Receives a message, this API will block unil a message is
+ *  @details		Receives a message, this API will block until a message is
  *                              received or until it is timedout (as long as the feature
  *                              CONFIG_WILC_MSG_QUEUE_TIMEOUT is enabled and pstrAttrs->u32Timeout
  *                              is not set to WILC_OS_INFINITY), zero timeout is a valid value
@@ -71,7 +71,7 @@ int wilc_mq_send(WILC_MsgQueueHandle *pHandle,
  *  @param[in]	u32RecvBufferSize the size of the receive buffer
  *  @param[out]	pu32ReceivedLength the length of received data
  *  @param[in]	pstrAttrs Optional attributes, NULL for default
- *  @return		Error code indicating sucess/failure
+ *  @return		Error code indicating success/failure
  *  @author		syounan
  *  @date		30 Aug 2010
  *  @version		1.0
@@ -84,7 +84,7 @@ int wilc_mq_recv(WILC_MsgQueueHandle *pHandle,
  *  @brief		Destroys an existing  Message queue
  *  @param[in]	pHandle handle to the message queue object
  *  @param[in]	pstrAttrs Optional attributes, NULL for default
- *  @return		Error code indicating sucess/failure
+ *  @return		Error code indicating success/failure
  *  @author		syounan
  *  @date		30 Aug 2010
  *  @version		1.0
diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c
index 300c571e4e2d..e961b5004902 100644
--- a/drivers/staging/wilc1000/wilc_sdio.c
+++ b/drivers/staging/wilc1000/wilc_sdio.c
@@ -10,17 +10,29 @@
 #include <linux/string.h>
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
+#include "wilc_wfi_netdevice.h"
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio.h>
+#include <linux/mmc/host.h>
+#include <linux/of_gpio.h>
+
+#define SDIO_MODALIAS "wilc1000_sdio"
+
+#define SDIO_VENDOR_ID_WILC 0x0296
+#define SDIO_DEVICE_ID_WILC 0x5347
+
+static const struct sdio_device_id wilc_sdio_ids[] = {
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_WILC, SDIO_DEVICE_ID_WILC) },
+	{ },
+};
 
 #define WILC_SDIO_BLOCK_SIZE 512
 
 typedef struct {
-	void *os_context;
+	bool irq_gpio;
 	u32 block_size;
-	int (*sdio_cmd52)(sdio_cmd52_t *);
-	int (*sdio_cmd53)(sdio_cmd53_t *);
-	int (*sdio_set_max_speed)(void);
-	int (*sdio_set_default_speed)(void);
-	wilc_debug_func dPrint;
 	int nint;
 #define MAX_NUN_INT_THRPT_ENH2 (5) /* Max num interrupts allowed in registers 0xf7, 0xf8 */
 	int has_thrpt_enh3;
@@ -28,10 +40,155 @@ typedef struct {
 
 static wilc_sdio_t g_sdio;
 
-#ifdef WILC_SDIO_IRQ_GPIO
-static int sdio_write_reg(u32 addr, u32 data);
-static int sdio_read_reg(u32 addr, u32 *data);
-#endif
+static int sdio_write_reg(struct wilc *wilc, u32 addr, u32 data);
+static int sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data);
+
+static void wilc_sdio_interrupt(struct sdio_func *func)
+{
+	sdio_release_host(func);
+	wilc_handle_isr(sdio_get_drvdata(func));
+	sdio_claim_host(func);
+}
+
+static int wilc_sdio_cmd52(struct wilc *wilc, sdio_cmd52_t *cmd)
+{
+	struct sdio_func *func = container_of(wilc->dev, struct sdio_func, dev);
+	int ret;
+	u8 data;
+
+	sdio_claim_host(func);
+
+	func->num = cmd->function;
+	if (cmd->read_write) {  /* write */
+		if (cmd->raw) {
+			sdio_writeb(func, cmd->data, cmd->address, &ret);
+			data = sdio_readb(func, cmd->address, &ret);
+			cmd->data = data;
+		} else {
+			sdio_writeb(func, cmd->data, cmd->address, &ret);
+		}
+	} else {        /* read */
+		data = sdio_readb(func, cmd->address, &ret);
+		cmd->data = data;
+	}
+
+	sdio_release_host(func);
+
+	if (ret)
+		dev_err(&func->dev, "wilc_sdio_cmd52..failed, err(%d)\n", ret);
+	return ret;
+}
+
+
+static int wilc_sdio_cmd53(struct wilc *wilc, sdio_cmd53_t *cmd)
+{
+	struct sdio_func *func = container_of(wilc->dev, struct sdio_func, dev);
+	int size, ret;
+
+	sdio_claim_host(func);
+
+	func->num = cmd->function;
+	func->cur_blksize = cmd->block_size;
+	if (cmd->block_mode)
+		size = cmd->count * cmd->block_size;
+	else
+		size = cmd->count;
+
+	if (cmd->read_write) {  /* write */
+		ret = sdio_memcpy_toio(func, cmd->address,
+				       (void *)cmd->buffer, size);
+	} else {        /* read */
+		ret = sdio_memcpy_fromio(func, (void *)cmd->buffer,
+					 cmd->address,  size);
+	}
+
+	sdio_release_host(func);
+
+	if (ret)
+		dev_err(&func->dev, "wilc_sdio_cmd53..failed, err(%d)\n", ret);
+
+	return ret;
+}
+
+static int linux_sdio_probe(struct sdio_func *func,
+			    const struct sdio_device_id *id)
+{
+	struct wilc *wilc;
+	int gpio, ret;
+
+	gpio = -1;
+	if (IS_ENABLED(CONFIG_WILC1000_HW_OOB_INTR)) {
+		gpio = of_get_gpio(func->dev.of_node, 0);
+		if (gpio < 0)
+			gpio = GPIO_NUM;
+	}
+
+	dev_dbg(&func->dev, "Initializing netdev\n");
+	ret = wilc_netdev_init(&wilc, &func->dev, HIF_SDIO, gpio,
+			     &wilc_hif_sdio);
+	if (ret) {
+		dev_err(&func->dev, "Couldn't initialize netdev\n");
+		return ret;
+	}
+	sdio_set_drvdata(func, wilc);
+	wilc->dev = &func->dev;
+
+	dev_info(&func->dev, "Driver Initializing success\n");
+	return 0;
+}
+
+static void linux_sdio_remove(struct sdio_func *func)
+{
+	wilc_netdev_cleanup(sdio_get_drvdata(func));
+}
+
+static struct sdio_driver wilc1000_sdio_driver = {
+	.name		= SDIO_MODALIAS,
+	.id_table	= wilc_sdio_ids,
+	.probe		= linux_sdio_probe,
+	.remove		= linux_sdio_remove,
+};
+module_driver(wilc1000_sdio_driver,
+	      sdio_register_driver,
+	      sdio_unregister_driver);
+MODULE_LICENSE("GPL");
+
+static int wilc_sdio_enable_interrupt(struct wilc *dev)
+{
+	struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev);
+	int ret = 0;
+
+	sdio_claim_host(func);
+	ret = sdio_claim_irq(func, wilc_sdio_interrupt);
+	sdio_release_host(func);
+
+	if (ret < 0) {
+		dev_err(&func->dev, "can't claim sdio_irq, err(%d)\n", ret);
+		ret = -EIO;
+	}
+	return ret;
+}
+
+static void wilc_sdio_disable_interrupt(struct wilc *dev)
+{
+	struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev);
+	int ret;
+
+	dev_dbg(&func->dev, "wilc_sdio_disable_interrupt IN\n");
+
+	sdio_claim_host(func);
+	ret = sdio_release_irq(func);
+	if (ret < 0)
+		dev_err(&func->dev, "can't release sdio_irq, err(%d)\n", ret);
+	sdio_release_host(func);
+
+	dev_info(&func->dev, "wilc_sdio_disable_interrupt OUT\n");
+}
+
+static int wilc_sdio_init(void)
+{
+	return 1;
+}
 
 /********************************************
  *
@@ -39,9 +196,11 @@ static int sdio_read_reg(u32 addr, u32 *data);
  *
  ********************************************/
 
-static int sdio_set_func0_csa_address(u32 adr)
+static int sdio_set_func0_csa_address(struct wilc *wilc, u32 adr)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	sdio_cmd52_t cmd;
+	int ret;
 
 	/**
 	 *      Review: BIG ENDIAN
@@ -51,22 +210,25 @@ static int sdio_set_func0_csa_address(u32 adr)
 	cmd.raw = 0;
 	cmd.address = 0x10c;
 	cmd.data = (u8)adr;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x10c data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x10c data...\n");
 		goto _fail_;
 	}
 
 	cmd.address = 0x10d;
 	cmd.data = (u8)(adr >> 8);
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x10d data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x10d data...\n");
 		goto _fail_;
 	}
 
 	cmd.address = 0x10e;
 	cmd.data = (u8)(adr >> 16);
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x10e data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x10e data...\n");
 		goto _fail_;
 	}
 
@@ -75,24 +237,28 @@ _fail_:
 	return 0;
 }
 
-static int sdio_set_func0_block_size(u32 block_size)
+static int sdio_set_func0_block_size(struct wilc *wilc, u32 block_size)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	sdio_cmd52_t cmd;
+	int ret;
 
 	cmd.read_write = 1;
 	cmd.function = 0;
 	cmd.raw = 0;
 	cmd.address = 0x10;
 	cmd.data = (u8)block_size;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x10 data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x10 data...\n");
 		goto _fail_;
 	}
 
 	cmd.address = 0x11;
 	cmd.data = (u8)(block_size >> 8);
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x11 data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x11 data...\n");
 		goto _fail_;
 	}
 
@@ -107,23 +273,27 @@ _fail_:
  *
  ********************************************/
 
-static int sdio_set_func1_block_size(u32 block_size)
+static int sdio_set_func1_block_size(struct wilc *wilc, u32 block_size)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	sdio_cmd52_t cmd;
+	int ret;
 
 	cmd.read_write = 1;
 	cmd.function = 0;
 	cmd.raw = 0;
 	cmd.address = 0x110;
 	cmd.data = (u8)block_size;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x110 data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x110 data...\n");
 		goto _fail_;
 	}
 	cmd.address = 0x111;
 	cmd.data = (u8)(block_size >> 8);
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0x111 data...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Failed cmd52, set 0x111 data...\n");
 		goto _fail_;
 	}
 
@@ -132,100 +302,17 @@ _fail_:
 	return 0;
 }
 
-static int sdio_clear_int(void)
-{
-#ifndef WILC_SDIO_IRQ_GPIO
-	/* u32 sts; */
-	sdio_cmd52_t cmd;
-
-	cmd.read_write = 0;
-	cmd.function = 1;
-	cmd.raw = 0;
-	cmd.address = 0x4;
-	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
-
-	return cmd.data;
-#else
-	u32 reg;
-
-	if (!sdio_read_reg(WILC_HOST_RX_CTRL_0, &reg)) {
-		g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg (%08x)...\n", WILC_HOST_RX_CTRL_0);
-		return 0;
-	}
-	reg &= ~0x1;
-	sdio_write_reg(WILC_HOST_RX_CTRL_0, reg);
-	return 1;
-#endif
-
-}
-
-u32 sdio_xfer_cnt(void)
-{
-	u32 cnt = 0;
-	sdio_cmd52_t cmd;
-
-	cmd.read_write = 0;
-	cmd.function = 1;
-	cmd.raw = 0;
-	cmd.address = 0x1C;
-	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
-	cnt = cmd.data;
-
-	cmd.read_write = 0;
-	cmd.function = 1;
-	cmd.raw = 0;
-	cmd.address = 0x1D;
-	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
-	cnt |= (cmd.data << 8);
-
-	cmd.read_write = 0;
-	cmd.function = 1;
-	cmd.raw = 0;
-	cmd.address = 0x1E;
-	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
-	cnt |= (cmd.data << 16);
-
-	return cnt;
-}
-
 /********************************************
  *
  *      Sdio interfaces
  *
  ********************************************/
-int sdio_check_bs(void)
+static int sdio_write_reg(struct wilc *wilc, u32 addr, u32 data)
 {
-	sdio_cmd52_t cmd;
-
-	/**
-	 *      poll until BS is 0
-	 **/
-	cmd.read_write = 0;
-	cmd.function = 0;
-	cmd.raw = 0;
-	cmd.address = 0xc;
-	cmd.data = 0;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd 52, get BS register...\n");
-		goto _fail_;
-	}
-
-	return 1;
-
-_fail_:
-
-	return 0;
-}
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
+	int ret;
 
-static int sdio_write_reg(u32 addr, u32 data)
-{
-#ifdef BIG_ENDIAN
-	data = BYTE_SWAP(data);
-#endif
+	data = cpu_to_le32(data);
 
 	if ((addr >= 0xf0) && (addr <= 0xff)) {
 		sdio_cmd52_t cmd;
@@ -235,8 +322,10 @@ static int sdio_write_reg(u32 addr, u32 data)
 		cmd.raw = 0;
 		cmd.address = addr;
 		cmd.data = data;
-		if (!g_sdio.sdio_cmd52(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd 52, read reg (%08x) ...\n", addr);
+		ret = wilc_sdio_cmd52(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd 52, read reg (%08x) ...\n", addr);
 			goto _fail_;
 		}
 	} else {
@@ -245,7 +334,7 @@ static int sdio_write_reg(u32 addr, u32 data)
 		/**
 		 *      set the AHB address
 		 **/
-		if (!sdio_set_func0_csa_address(addr))
+		if (!sdio_set_func0_csa_address(wilc, addr))
 			goto _fail_;
 
 		cmd.read_write = 1;
@@ -256,9 +345,10 @@ static int sdio_write_reg(u32 addr, u32 data)
 		cmd.count = 4;
 		cmd.buffer = (u8 *)&data;
 		cmd.block_size = g_sdio.block_size; /* johnny : prevent it from setting unexpected value */
-
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53, write reg (%08x)...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53, write reg (%08x)...\n", addr);
 			goto _fail_;
 		}
 	}
@@ -270,11 +360,12 @@ _fail_:
 	return 0;
 }
 
-static int sdio_write(u32 addr, u8 *buf, u32 size)
+static int sdio_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	u32 block_size = g_sdio.block_size;
 	sdio_cmd53_t cmd;
-	int nblk, nleft;
+	int nblk, nleft, ret;
 
 	cmd.read_write = 1;
 	if (addr > 0) {
@@ -317,11 +408,13 @@ static int sdio_write(u32 addr, u8 *buf, u32 size)
 		cmd.buffer = buf;
 		cmd.block_size = block_size;
 		if (addr > 0) {
-			if (!sdio_set_func0_csa_address(addr))
+			if (!sdio_set_func0_csa_address(wilc, addr))
 				goto _fail_;
 		}
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53 [%x], block send...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53 [%x], block send...\n", addr);
 			goto _fail_;
 		}
 		if (addr > 0)
@@ -338,11 +431,13 @@ static int sdio_write(u32 addr, u8 *buf, u32 size)
 		cmd.block_size = block_size; /* johnny : prevent it from setting unexpected value */
 
 		if (addr > 0) {
-			if (!sdio_set_func0_csa_address(addr))
+			if (!sdio_set_func0_csa_address(wilc, addr))
 				goto _fail_;
 		}
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53 [%x], bytes send...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53 [%x], bytes send...\n", addr);
 			goto _fail_;
 		}
 	}
@@ -354,8 +449,11 @@ _fail_:
 	return 0;
 }
 
-static int sdio_read_reg(u32 addr, u32 *data)
+static int sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
+	int ret;
+
 	if ((addr >= 0xf0) && (addr <= 0xff)) {
 		sdio_cmd52_t cmd;
 
@@ -363,15 +461,17 @@ static int sdio_read_reg(u32 addr, u32 *data)
 		cmd.function = 0;
 		cmd.raw = 0;
 		cmd.address = addr;
-		if (!g_sdio.sdio_cmd52(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd 52, read reg (%08x) ...\n", addr);
+		ret = wilc_sdio_cmd52(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd 52, read reg (%08x) ...\n", addr);
 			goto _fail_;
 		}
 		*data = cmd.data;
 	} else {
 		sdio_cmd53_t cmd;
 
-		if (!sdio_set_func0_csa_address(addr))
+		if (!sdio_set_func0_csa_address(wilc, addr))
 			goto _fail_;
 
 		cmd.read_write = 0;
@@ -383,16 +483,15 @@ static int sdio_read_reg(u32 addr, u32 *data)
 		cmd.buffer = (u8 *)data;
 
 		cmd.block_size = g_sdio.block_size; /* johnny : prevent it from setting unexpected value */
-
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53, read reg (%08x)...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53, read reg (%08x)...\n", addr);
 			goto _fail_;
 		}
 	}
 
-#ifdef BIG_ENDIAN
-	*data = BYTE_SWAP(*data);
-#endif
+	*data = cpu_to_le32(*data);
 
 	return 1;
 
@@ -401,11 +500,12 @@ _fail_:
 	return 0;
 }
 
-static int sdio_read(u32 addr, u8 *buf, u32 size)
+static int sdio_read(struct wilc *wilc, u32 addr, u8 *buf, u32 size)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	u32 block_size = g_sdio.block_size;
 	sdio_cmd53_t cmd;
-	int nblk, nleft;
+	int nblk, nleft, ret;
 
 	cmd.read_write = 0;
 	if (addr > 0) {
@@ -448,11 +548,13 @@ static int sdio_read(u32 addr, u8 *buf, u32 size)
 		cmd.buffer = buf;
 		cmd.block_size = block_size;
 		if (addr > 0) {
-			if (!sdio_set_func0_csa_address(addr))
+			if (!sdio_set_func0_csa_address(wilc, addr))
 				goto _fail_;
 		}
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53 [%x], block read...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53 [%x], block read...\n", addr);
 			goto _fail_;
 		}
 		if (addr > 0)
@@ -469,11 +571,13 @@ static int sdio_read(u32 addr, u8 *buf, u32 size)
 		cmd.block_size = block_size; /* johnny : prevent it from setting unexpected value */
 
 		if (addr > 0) {
-			if (!sdio_set_func0_csa_address(addr))
+			if (!sdio_set_func0_csa_address(wilc, addr))
 				goto _fail_;
 		}
-		if (!g_sdio.sdio_cmd53(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd53 [%x], bytes read...\n", addr);
+		ret = wilc_sdio_cmd53(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Failed cmd53 [%x], bytes read...\n", addr);
 			goto _fail_;
 		}
 	}
@@ -491,94 +595,29 @@ _fail_:
  *
  ********************************************/
 
-static int sdio_deinit(void *pv)
+static int sdio_deinit(struct wilc *wilc)
 {
 	return 1;
 }
 
-static int sdio_sync(void)
-{
-	u32 reg;
-
-	/**
-	 *      Disable power sequencer
-	 **/
-	if (!sdio_read_reg(WILC_MISC, &reg)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read misc reg...\n");
-		return 0;
-	}
-
-	reg &= ~BIT(8);
-	if (!sdio_write_reg(WILC_MISC, reg)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write misc reg...\n");
-		return 0;
-	}
-
-#ifdef WILC_SDIO_IRQ_GPIO
-	{
-		u32 reg;
-		int ret;
-
-		/**
-		 *      interrupt pin mux select
-		 **/
-		ret = sdio_read_reg(WILC_PIN_MUX_0, &reg);
-		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
-			return 0;
-		}
-		reg |= BIT(8);
-		ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
-		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
-			return 0;
-		}
-
-		/**
-		 *      interrupt enable
-		 **/
-		ret = sdio_read_reg(WILC_INTR_ENABLE, &reg);
-		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
-			return 0;
-		}
-		reg |= BIT(16);
-		ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
-		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
-			return 0;
-		}
-	}
-#endif
-
-	return 1;
-}
-
-static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
+static int sdio_init(struct wilc *wilc)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	sdio_cmd52_t cmd;
-	int loop;
+	int loop, ret;
 	u32 chipid;
 
 	memset(&g_sdio, 0, sizeof(wilc_sdio_t));
 
-	g_sdio.dPrint = func;
-	g_sdio.os_context = inp->os_context.os_private;
+	g_sdio.irq_gpio = (wilc->dev_irq_num);
 
-	if (inp->io_func.io_init) {
-		if (!inp->io_func.io_init(g_sdio.os_context)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed io init bus...\n");
-			return 0;
-		}
+	if (!wilc_sdio_init()) {
+		dev_err(&func->dev, "Failed io init bus...\n");
+		return 0;
 	} else {
 		return 0;
 	}
 
-	g_sdio.sdio_cmd52	= inp->io_func.u.sdio.sdio_cmd52;
-	g_sdio.sdio_cmd53	= inp->io_func.u.sdio.sdio_cmd53;
-	g_sdio.sdio_set_max_speed	= inp->io_func.u.sdio.sdio_set_max_speed;
-	g_sdio.sdio_set_default_speed	= inp->io_func.u.sdio.sdio_set_default_speed;
-
 	/**
 	 *      function 0 csa enable
 	 **/
@@ -587,16 +626,17 @@ static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	cmd.raw = 1;
 	cmd.address = 0x100;
 	cmd.data = 0x80;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd 52, enable csa...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Fail cmd 52, enable csa...\n");
 		goto _fail_;
 	}
 
 	/**
 	 *      function 0 block size
 	 **/
-	if (!sdio_set_func0_block_size(WILC_SDIO_BLOCK_SIZE)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd 52, set func 0 block size...\n");
+	if (!sdio_set_func0_block_size(wilc, WILC_SDIO_BLOCK_SIZE)) {
+		dev_err(&func->dev, "Fail cmd 52, set func 0 block size...\n");
 		goto _fail_;
 	}
 	g_sdio.block_size = WILC_SDIO_BLOCK_SIZE;
@@ -609,8 +649,10 @@ static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	cmd.raw = 1;
 	cmd.address = 0x2;
 	cmd.data = 0x2;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio] Fail cmd 52, set IOE register...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev,
+			"Fail cmd 52, set IOE register...\n");
 		goto _fail_;
 	}
 
@@ -624,8 +666,10 @@ static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	loop = 3;
 	do {
 		cmd.data = 0;
-		if (!g_sdio.sdio_cmd52(&cmd)) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd 52, get IOR register...\n");
+		ret = wilc_sdio_cmd52(wilc, &cmd);
+		if (ret) {
+			dev_err(&func->dev,
+				"Fail cmd 52, get IOR register...\n");
 			goto _fail_;
 		}
 		if (cmd.data == 0x2)
@@ -633,15 +677,15 @@ static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	} while (loop--);
 
 	if (loop <= 0) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail func 1 is not ready...\n");
+		dev_err(&func->dev, "Fail func 1 is not ready...\n");
 		goto _fail_;
 	}
 
 	/**
 	 *      func 1 is ready, set func 1 block size
 	 **/
-	if (!sdio_set_func1_block_size(WILC_SDIO_BLOCK_SIZE)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail set func 1 block size...\n");
+	if (!sdio_set_func1_block_size(wilc, WILC_SDIO_BLOCK_SIZE)) {
+		dev_err(&func->dev, "Fail set func 1 block size...\n");
 		goto _fail_;
 	}
 
@@ -653,24 +697,25 @@ static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	cmd.raw = 1;
 	cmd.address = 0x4;
 	cmd.data = 0x3;
-	if (!g_sdio.sdio_cmd52(&cmd)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd 52, set IEN register...\n");
+	ret = wilc_sdio_cmd52(wilc, &cmd);
+	if (ret) {
+		dev_err(&func->dev, "Fail cmd 52, set IEN register...\n");
 		goto _fail_;
 	}
 
 	/**
 	 *      make sure can read back chip id correctly
 	 **/
-	if (!sdio_read_reg(0x1000, &chipid)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Fail cmd read chip id...\n");
+	if (!sdio_read_reg(wilc, 0x1000, &chipid)) {
+		dev_err(&func->dev, "Fail cmd read chip id...\n");
 		goto _fail_;
 	}
-	g_sdio.dPrint(N_ERR, "[wilc sdio]: chipid (%08x)\n", chipid);
+	dev_err(&func->dev, "chipid (%08x)\n", chipid);
 	if ((chipid & 0xfff) > 0x2a0)
 		g_sdio.has_thrpt_enh3 = 1;
 	else
 		g_sdio.has_thrpt_enh3 = 0;
-	g_sdio.dPrint(N_ERR, "[wilc sdio]: has_thrpt_enh3 = %d...\n", g_sdio.has_thrpt_enh3);
+	dev_info(&func->dev, "has_thrpt_enh3 = %d...\n", g_sdio.has_thrpt_enh3);
 
 	return 1;
 
@@ -679,19 +724,8 @@ _fail_:
 	return 0;
 }
 
-static void sdio_set_max_speed(void)
+static int sdio_read_size(struct wilc *wilc, u32 *size)
 {
-	g_sdio.sdio_set_max_speed();
-}
-
-static void sdio_set_default_speed(void)
-{
-	g_sdio.sdio_set_default_speed();
-}
-
-static int sdio_read_size(u32 *size)
-{
-
 	u32 tmp;
 	sdio_cmd52_t cmd;
 
@@ -703,7 +737,7 @@ static int sdio_read_size(u32 *size)
 	cmd.raw = 0;
 	cmd.address = 0xf2;
 	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
+	wilc_sdio_cmd52(wilc, &cmd);
 	tmp = cmd.data;
 
 	/* cmd.read_write = 0; */
@@ -711,54 +745,53 @@ static int sdio_read_size(u32 *size)
 	/* cmd.raw = 0; */
 	cmd.address = 0xf3;
 	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
+	wilc_sdio_cmd52(wilc, &cmd);
 	tmp |= (cmd.data << 8);
 
 	*size = tmp;
 	return 1;
 }
 
-static int sdio_read_int(u32 *int_status)
+static int sdio_read_int(struct wilc *wilc, u32 *int_status)
 {
-
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	u32 tmp;
 	sdio_cmd52_t cmd;
 
-	sdio_read_size(&tmp);
+	sdio_read_size(wilc, &tmp);
 
 	/**
 	 *      Read IRQ flags
 	 **/
-#ifndef WILC_SDIO_IRQ_GPIO
-	cmd.function = 1;
-	cmd.address = 0x04;
-	cmd.data = 0;
-	g_sdio.sdio_cmd52(&cmd);
-
-	if (cmd.data & BIT(0))
-		tmp |= INT_0;
-	if (cmd.data & BIT(2))
-		tmp |= INT_1;
-	if (cmd.data & BIT(3))
-		tmp |= INT_2;
-	if (cmd.data & BIT(4))
-		tmp |= INT_3;
-	if (cmd.data & BIT(5))
-		tmp |= INT_4;
-	if (cmd.data & BIT(6))
-		tmp |= INT_5;
-	{
+	if (!g_sdio.irq_gpio) {
 		int i;
 
+		cmd.function = 1;
+		cmd.address = 0x04;
+		cmd.data = 0;
+		wilc_sdio_cmd52(wilc, &cmd);
+
+		if (cmd.data & BIT(0))
+			tmp |= INT_0;
+		if (cmd.data & BIT(2))
+			tmp |= INT_1;
+		if (cmd.data & BIT(3))
+			tmp |= INT_2;
+		if (cmd.data & BIT(4))
+			tmp |= INT_3;
+		if (cmd.data & BIT(5))
+			tmp |= INT_4;
+		if (cmd.data & BIT(6))
+			tmp |= INT_5;
 		for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
 			if ((tmp >> (IRG_FLAGS_OFFSET + i)) & 0x1) {
-				g_sdio.dPrint(N_ERR, "[wilc sdio]: Unexpected interrupt (1) : tmp=%x, data=%x\n", tmp, cmd.data);
+				dev_err(&func->dev,
+					"Unexpected interrupt (1) : tmp=%x, data=%x\n",
+					tmp, cmd.data);
 				break;
 			}
 		}
-	}
-#else
-	{
+	} else {
 		u32 irq_flags;
 
 		cmd.read_write = 0;
@@ -766,35 +799,32 @@ static int sdio_read_int(u32 *int_status)
 		cmd.raw = 0;
 		cmd.address = 0xf7;
 		cmd.data = 0;
-		g_sdio.sdio_cmd52(&cmd);
+		wilc_sdio_cmd52(wilc, &cmd);
 		irq_flags = cmd.data & 0x1f;
 		tmp |= ((irq_flags >> 0) << IRG_FLAGS_OFFSET);
 	}
 
-#endif
-
 	*int_status = tmp;
 
 	return 1;
 }
 
-static int sdio_clear_int_ext(u32 val)
+static int sdio_clear_int_ext(struct wilc *wilc, u32 val)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	int ret;
 
 	if (g_sdio.has_thrpt_enh3) {
 		u32 reg;
 
-#ifdef WILC_SDIO_IRQ_GPIO
-		{
+		if (g_sdio.irq_gpio) {
 			u32 flags;
 
 			flags = val & (BIT(MAX_NUN_INT_THRPT_ENH2) - 1);
 			reg = flags;
+		} else {
+			reg = 0;
 		}
-#else
-		reg = 0;
-#endif
 		/* select VMM table 0 */
 		if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
 			reg |= BIT(5);
@@ -813,16 +843,17 @@ static int sdio_clear_int_ext(u32 val)
 			cmd.address = 0xf8;
 			cmd.data = reg;
 
-			ret = g_sdio.sdio_cmd52(&cmd);
-			if (!ret) {
-				g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0xf8 data (%d) ...\n", __LINE__);
+			ret = wilc_sdio_cmd52(wilc, &cmd);
+			if (ret) {
+				dev_err(&func->dev,
+					"Failed cmd52, set 0xf8 data (%d) ...\n",
+					__LINE__);
 				goto _fail_;
 			}
 
 		}
 	} else {
-#ifdef WILC_SDIO_IRQ_GPIO
-		{
+		if (g_sdio.irq_gpio) {
 			/* see below. has_thrpt_enh2 uses register 0xf8 to clear interrupts. */
 			/* Cannot clear multiple interrupts. Must clear each interrupt individually */
 			u32 flags;
@@ -842,9 +873,11 @@ static int sdio_clear_int_ext(u32 val)
 						cmd.address = 0xf8;
 						cmd.data = BIT(i);
 
-						ret = g_sdio.sdio_cmd52(&cmd);
-						if (!ret) {
-							g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0xf8 data (%d) ...\n", __LINE__);
+						ret = wilc_sdio_cmd52(wilc, &cmd);
+						if (ret) {
+							dev_err(&func->dev,
+								"Failed cmd52, set 0xf8 data (%d) ...\n",
+								__LINE__);
 							goto _fail_;
 						}
 
@@ -857,12 +890,13 @@ static int sdio_clear_int_ext(u32 val)
 					goto _fail_;
 				for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
 					if (flags & 1)
-						g_sdio.dPrint(N_ERR, "[wilc sdio]: Unexpected interrupt cleared %d...\n", i);
+						dev_err(&func->dev,
+							"Unexpected interrupt cleared %d...\n",
+							i);
 					flags >>= 1;
 				}
 			}
 		}
-#endif /* WILC_SDIO_IRQ_GPIO */
 
 		{
 			u32 vmm_ctl;
@@ -886,9 +920,11 @@ static int sdio_clear_int_ext(u32 val)
 				cmd.raw = 0;
 				cmd.address = 0xf6;
 				cmd.data = vmm_ctl;
-				ret = g_sdio.sdio_cmd52(&cmd);
-				if (!ret) {
-					g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed cmd52, set 0xf6 data (%d) ...\n", __LINE__);
+				ret = wilc_sdio_cmd52(wilc, &cmd);
+				if (ret) {
+					dev_err(&func->dev,
+						"Failed cmd52, set 0xf6 data (%d) ...\n",
+						__LINE__);
 					goto _fail_;
 				}
 			}
@@ -900,16 +936,18 @@ _fail_:
 	return 0;
 }
 
-static int sdio_sync_ext(int nint /*  how mant interrupts to enable. */)
+static int sdio_sync_ext(struct wilc *wilc, int nint)
 {
+	struct sdio_func *func = dev_to_sdio_func(wilc->dev);
 	u32 reg;
 
 	if (nint > MAX_NUM_INT) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Too many interupts (%d)...\n", nint);
+		dev_err(&func->dev, "Too many interupts (%d)...\n", nint);
 		return 0;
 	}
 	if (nint > MAX_NUN_INT_THRPT_ENH2) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Error: Cannot support more than 5 interrupts when has_thrpt_enh2=1.\n");
+		dev_err(&func->dev,
+			"Cannot support more than 5 interrupts when has_thrpt_enh2=1.\n");
 		return 0;
 	}
 
@@ -918,71 +956,77 @@ static int sdio_sync_ext(int nint /*  how mant interrupts to enable. */)
 	/**
 	 *      Disable power sequencer
 	 **/
-	if (!sdio_read_reg(WILC_MISC, &reg)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read misc reg...\n");
+	if (!sdio_read_reg(wilc, WILC_MISC, &reg)) {
+		dev_err(&func->dev, "Failed read misc reg...\n");
 		return 0;
 	}
 
 	reg &= ~BIT(8);
-	if (!sdio_write_reg(WILC_MISC, reg)) {
-		g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write misc reg...\n");
+	if (!sdio_write_reg(wilc, WILC_MISC, reg)) {
+		dev_err(&func->dev, "Failed write misc reg...\n");
 		return 0;
 	}
 
-#ifdef WILC_SDIO_IRQ_GPIO
-	{
+	if (g_sdio.irq_gpio) {
 		u32 reg;
 		int ret, i;
 
 		/**
 		 *      interrupt pin mux select
 		 **/
-		ret = sdio_read_reg(WILC_PIN_MUX_0, &reg);
+		ret = sdio_read_reg(wilc, WILC_PIN_MUX_0, &reg);
 		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
+			dev_err(&func->dev, "Failed read reg (%08x)...\n",
+				WILC_PIN_MUX_0);
 			return 0;
 		}
 		reg |= BIT(8);
-		ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
+		ret = sdio_write_reg(wilc, WILC_PIN_MUX_0, reg);
 		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
+			dev_err(&func->dev, "Failed write reg (%08x)...\n",
+				WILC_PIN_MUX_0);
 			return 0;
 		}
 
 		/**
 		 *      interrupt enable
 		 **/
-		ret = sdio_read_reg(WILC_INTR_ENABLE, &reg);
+		ret = sdio_read_reg(wilc, WILC_INTR_ENABLE, &reg);
 		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
+			dev_err(&func->dev, "Failed read reg (%08x)...\n",
+				WILC_INTR_ENABLE);
 			return 0;
 		}
 
 		for (i = 0; (i < 5) && (nint > 0); i++, nint--)
 			reg |= BIT((27 + i));
-		ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
+		ret = sdio_write_reg(wilc, WILC_INTR_ENABLE, reg);
 		if (!ret) {
-			g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
+			dev_err(&func->dev, "Failed write reg (%08x)...\n",
+				WILC_INTR_ENABLE);
 			return 0;
 		}
 		if (nint) {
-			ret = sdio_read_reg(WILC_INTR2_ENABLE, &reg);
+			ret = sdio_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
 			if (!ret) {
-				g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg (%08x)...\n", WILC_INTR2_ENABLE);
+				dev_err(&func->dev,
+					"Failed read reg (%08x)...\n",
+					WILC_INTR2_ENABLE);
 				return 0;
 			}
 
 			for (i = 0; (i < 3) && (nint > 0); i++, nint--)
 				reg |= BIT(i);
 
-			ret = sdio_read_reg(WILC_INTR2_ENABLE, &reg);
+			ret = sdio_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
 			if (!ret) {
-				g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg (%08x)...\n", WILC_INTR2_ENABLE);
+				dev_err(&func->dev,
+					"Failed write reg (%08x)...\n",
+					WILC_INTR2_ENABLE);
 				return 0;
 			}
 		}
 	}
-#endif /* WILC_SDIO_IRQ_GPIO */
 	return 1;
 }
 
@@ -992,23 +1036,20 @@ static int sdio_sync_ext(int nint /*  how mant interrupts to enable. */)
  *
  ********************************************/
 
-wilc_hif_func_t hif_sdio = {
-	sdio_init,
-	sdio_deinit,
-	sdio_read_reg,
-	sdio_write_reg,
-	sdio_read,
-	sdio_write,
-	sdio_sync,
-	sdio_clear_int,
-	sdio_read_int,
-	sdio_clear_int_ext,
-	sdio_read_size,
-	sdio_write,
-	sdio_read,
-	sdio_sync_ext,
-
-	sdio_set_max_speed,
-	sdio_set_default_speed,
+const struct wilc_hif_func wilc_hif_sdio = {
+	.hif_init = sdio_init,
+	.hif_deinit = sdio_deinit,
+	.hif_read_reg = sdio_read_reg,
+	.hif_write_reg = sdio_write_reg,
+	.hif_block_rx = sdio_read,
+	.hif_block_tx = sdio_write,
+	.hif_read_int = sdio_read_int,
+	.hif_clear_int_ext = sdio_clear_int_ext,
+	.hif_read_size = sdio_read_size,
+	.hif_block_tx_ext = sdio_write,
+	.hif_block_rx_ext = sdio_read,
+	.hif_sync_ext = sdio_sync_ext,
+	.enable_interrupt = wilc_sdio_enable_interrupt,
+	.disable_interrupt = wilc_sdio_disable_interrupt,
 };
 
diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c
index 599508beabf8..86de50c9f7f5 100644
--- a/drivers/staging/wilc1000/wilc_spi.c
+++ b/drivers/staging/wilc1000/wilc_spi.c
@@ -6,18 +6,25 @@
 /*  */
 /*  */
 /* //////////////////////////////////////////////////////////////////////////// */
-
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/cdev.h>
+#include <linux/uaccess.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/of_gpio.h>
+
+#include "linux_wlan_common.h"
 #include <linux/string.h>
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
+#include "wilc_wfi_netdevice.h"
 
 typedef struct {
-	void *os_context;
-	int (*spi_tx)(u8 *, u32);
-	int (*spi_rx)(u8 *, u32);
-	int (*spi_trx)(u8 *, u8 *, u32);
-	int (*spi_max_speed)(void);
-	wilc_debug_func dPrint;
 	int crc_off;
 	int nint;
 	int has_thrpt_enh;
@@ -25,8 +32,8 @@ typedef struct {
 
 static wilc_spi_t g_spi;
 
-static int spi_read(u32, u8 *, u32);
-static int spi_write(u32, u8 *, u32);
+static int wilc_spi_read(struct wilc *wilc, u32, u8 *, u32);
+static int wilc_spi_write(struct wilc *wilc, u32, u8 *, u32);
 
 /********************************************
  *
@@ -111,165 +118,175 @@ static u8 crc7(u8 crc, const u8 *buffer, u32 len)
 #define DATA_PKT_SZ_8K				(8 * 1024)
 #define DATA_PKT_SZ					DATA_PKT_SZ_8K
 
-static int spi_cmd(u8 cmd, u32 adr, u32 data, u32 sz, u8 clockless)
+#define USE_SPI_DMA     0
+
+static const struct wilc1000_ops wilc1000_spi_ops;
+
+static int wilc_bus_probe(struct spi_device *spi)
 {
-	u8 bc[9];
-	int len = 5;
-	int result = N_OK;
+	int ret, gpio;
+	struct wilc *wilc;
 
-	bc[0] = cmd;
-	switch (cmd) {
-	case CMD_SINGLE_READ:                           /* single word (4 bytes) read */
-		bc[1] = (u8)(adr >> 16);
-		bc[2] = (u8)(adr >> 8);
-		bc[3] = (u8)adr;
-		len = 5;
-		break;
+	gpio = of_get_gpio(spi->dev.of_node, 0);
+	if (gpio < 0)
+		gpio = GPIO_NUM;
 
-	case CMD_INTERNAL_READ:                 /* internal register read */
-		bc[1] = (u8)(adr >> 8);
-		if (clockless)
-			bc[1] |= BIT(7);
-		bc[2] = (u8)adr;
-		bc[3] = 0x00;
-		len = 5;
-		break;
+	ret = wilc_netdev_init(&wilc, NULL, HIF_SPI, GPIO_NUM, &wilc_hif_spi);
+	if (ret)
+		return ret;
 
-	case CMD_TERMINATE:                                     /* termination */
-		bc[1] = 0x00;
-		bc[2] = 0x00;
-		bc[3] = 0x00;
-		len = 5;
-		break;
+	spi_set_drvdata(spi, wilc);
+	wilc->dev = &spi->dev;
 
-	case CMD_REPEAT:                                                /* repeat */
-		bc[1] = 0x00;
-		bc[2] = 0x00;
-		bc[3] = 0x00;
-		len = 5;
-		break;
+	return 0;
+}
 
-	case CMD_RESET:                                                 /* reset */
-		bc[1] = 0xff;
-		bc[2] = 0xff;
-		bc[3] = 0xff;
-		len = 5;
-		break;
+static int wilc_bus_remove(struct spi_device *spi)
+{
+	wilc_netdev_cleanup(spi_get_drvdata(spi));
+	return 0;
+}
 
-	case CMD_DMA_WRITE:                                     /* dma write */
-	case CMD_DMA_READ:                                      /* dma read */
-		bc[1] = (u8)(adr >> 16);
-		bc[2] = (u8)(adr >> 8);
-		bc[3] = (u8)adr;
-		bc[4] = (u8)(sz >> 8);
-		bc[5] = (u8)(sz);
-		len = 7;
-		break;
+static const struct of_device_id wilc1000_of_match[] = {
+	{ .compatible = "atmel,wilc_spi", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, wilc1000_of_match);
+
+struct spi_driver wilc1000_spi_driver = {
+	.driver = {
+		.name = MODALIAS,
+		.of_match_table = wilc1000_of_match,
+	},
+	.probe =  wilc_bus_probe,
+	.remove = wilc_bus_remove,
+};
+module_spi_driver(wilc1000_spi_driver);
+MODULE_LICENSE("GPL");
 
-	case CMD_DMA_EXT_WRITE:         /* dma extended write */
-	case CMD_DMA_EXT_READ:                  /* dma extended read */
-		bc[1] = (u8)(adr >> 16);
-		bc[2] = (u8)(adr >> 8);
-		bc[3] = (u8)adr;
-		bc[4] = (u8)(sz >> 16);
-		bc[5] = (u8)(sz >> 8);
-		bc[6] = (u8)(sz);
-		len = 8;
-		break;
+static int wilc_spi_tx(struct wilc *wilc, u8 *b, u32 len)
+{
+	struct spi_device *spi = to_spi_device(wilc->dev);
+	int ret;
+	struct spi_message msg;
 
-	case CMD_INTERNAL_WRITE:                /* internal register write */
-		bc[1] = (u8)(adr >> 8);
-		if (clockless)
-			bc[1] |= BIT(7);
-		bc[2] = (u8)(adr);
-		bc[3] = (u8)(data >> 24);
-		bc[4] = (u8)(data >> 16);
-		bc[5] = (u8)(data >> 8);
-		bc[6] = (u8)(data);
-		len = 8;
-		break;
+	if (len > 0 && b) {
+		struct spi_transfer tr = {
+			.tx_buf = b,
+			.len = len,
+			.delay_usecs = 0,
+		};
+		char *r_buffer = kzalloc(len, GFP_KERNEL);
 
-	case CMD_SINGLE_WRITE:                  /* single word write */
-		bc[1] = (u8)(adr >> 16);
-		bc[2] = (u8)(adr >> 8);
-		bc[3] = (u8)(adr);
-		bc[4] = (u8)(data >> 24);
-		bc[5] = (u8)(data >> 16);
-		bc[6] = (u8)(data >> 8);
-		bc[7] = (u8)(data);
-		len = 9;
-		break;
+		if (!r_buffer)
+			return -ENOMEM;
 
-	default:
-		result = N_FAIL;
-		break;
-	}
+		tr.rx_buf = r_buffer;
+		dev_dbg(&spi->dev, "Request writing %d bytes\n", len);
 
-	if (result) {
-		if (!g_spi.crc_off)
-			bc[len - 1] = (crc7(0x7f, (const u8 *)&bc[0], len - 1)) << 1;
-		else
-			len -= 1;
+		memset(&msg, 0, sizeof(msg));
+		spi_message_init(&msg);
+		msg.spi = spi;
+		msg.is_dma_mapped = USE_SPI_DMA;
+		spi_message_add_tail(&tr, &msg);
 
-		if (!g_spi.spi_tx(bc, len)) {
-			PRINT_ER("[wilc spi]: Failed cmd write, bus error...\n");
-			result = N_FAIL;
-		}
+		ret = spi_sync(spi, &msg);
+		if (ret < 0)
+			dev_err(&spi->dev, "SPI transaction failed\n");
+
+		kfree(r_buffer);
+	} else {
+		dev_err(&spi->dev,
+			"can't write data with the following length: %d\n",
+			len);
+		dev_err(&spi->dev,
+			"FAILED due to NULL buffer or ZERO length check the following length: %d\n",
+			len);
+		ret = -EINVAL;
 	}
 
-	return result;
+	return ret;
 }
 
-static int spi_cmd_rsp(u8 cmd)
+static int wilc_spi_rx(struct wilc *wilc, u8 *rb, u32 rlen)
 {
-	u8 rsp;
-	int result = N_OK;
+	struct spi_device *spi = to_spi_device(wilc->dev);
+	int ret;
 
-	/**
-	 *      Command/Control response
-	 **/
-	if ((cmd == CMD_RESET) ||
-	    (cmd == CMD_TERMINATE) ||
-	    (cmd == CMD_REPEAT)) {
-		if (!g_spi.spi_rx(&rsp, 1)) {
-			result = N_FAIL;
-			goto _fail_;
-		}
-	}
+	if (rlen > 0) {
+		struct spi_message msg;
+		struct spi_transfer tr = {
+			.rx_buf = rb,
+			.len = rlen,
+			.delay_usecs = 0,
 
-	if (!g_spi.spi_rx(&rsp, 1)) {
-		PRINT_ER("[wilc spi]: Failed cmd response read, bus error...\n");
-		result = N_FAIL;
-		goto _fail_;
-	}
+		};
+		char *t_buffer = kzalloc(rlen, GFP_KERNEL);
 
-	if (rsp != cmd) {
-		PRINT_ER("[wilc spi]: Failed cmd response, cmd (%02x), resp (%02x)\n", cmd, rsp);
-		result = N_FAIL;
-		goto _fail_;
-	}
+		if (!t_buffer)
+			return -ENOMEM;
 
-	/**
-	 *      State response
-	 **/
-	if (!g_spi.spi_rx(&rsp, 1)) {
-		PRINT_ER("[wilc spi]: Failed cmd state read, bus error...\n");
-		result = N_FAIL;
-		goto _fail_;
-	}
+		tr.tx_buf = t_buffer;
 
-	if (rsp != 0x00) {
-		PRINT_ER("[wilc spi]: Failed cmd state response state (%02x)\n", rsp);
-		result = N_FAIL;
+		memset(&msg, 0, sizeof(msg));
+		spi_message_init(&msg);
+		msg.spi = spi;
+		msg.is_dma_mapped = USE_SPI_DMA;
+		spi_message_add_tail(&tr, &msg);
+
+		ret = spi_sync(spi, &msg);
+		if (ret < 0)
+			dev_err(&spi->dev, "SPI transaction failed\n");
+		kfree(t_buffer);
+	} else {
+		dev_err(&spi->dev,
+			"can't read data with the following length: %u\n",
+			rlen);
+		ret = -EINVAL;
 	}
 
-_fail_:
+	return ret;
+}
 
-	return result;
+static int wilc_spi_tx_rx(struct wilc *wilc, u8 *wb, u8 *rb, u32 rlen)
+{
+	struct spi_device *spi = to_spi_device(wilc->dev);
+	int ret;
+
+	if (rlen > 0) {
+		struct spi_message msg;
+		struct spi_transfer tr = {
+			.rx_buf = rb,
+			.tx_buf = wb,
+			.len = rlen,
+			.bits_per_word = 8,
+			.delay_usecs = 0,
+
+		};
+
+		memset(&msg, 0, sizeof(msg));
+		spi_message_init(&msg);
+		msg.spi = spi;
+		msg.is_dma_mapped = USE_SPI_DMA;
+
+		spi_message_add_tail(&tr, &msg);
+		ret = spi_sync(spi, &msg);
+		if (ret < 0)
+			dev_err(&spi->dev, "SPI transaction failed\n");
+	} else {
+		dev_err(&spi->dev,
+			"can't read data with the following length: %u\n",
+			rlen);
+		ret = -EINVAL;
+	}
+
+	return ret;
 }
 
-static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
+static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz,
+			    u8 clockless)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	u8 wb[32], rb[32];
 	u8 wix, rix;
 	u32 len2;
@@ -398,7 +415,7 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 #undef NUM_DUMMY_BYTES
 
 	if (len2 > ARRAY_SIZE(wb)) {
-		PRINT_ER("[wilc spi]: spi buffer size too small (%d) (%zu)\n",
+		dev_err(&spi->dev, "spi buffer size too small (%d) (%zu)\n",
 			 len2, ARRAY_SIZE(wb));
 		result = N_FAIL;
 		return result;
@@ -409,8 +426,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 	}
 	rix = len;
 
-	if (!g_spi.spi_trx(wb, rb, len2)) {
-		PRINT_ER("[wilc spi]: Failed cmd write, bus error...\n");
+	if (wilc_spi_tx_rx(wilc, wb, rb, len2)) {
+		dev_err(&spi->dev, "Failed cmd write, bus error...\n");
 		result = N_FAIL;
 		return result;
 	}
@@ -430,7 +447,7 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 	/* } while(&rptr[1] <= &rb[len2]); */
 
 	if (rsp != cmd) {
-		PRINT_ER("[wilc spi]: Failed cmd response, cmd (%02x)"
+		dev_err(&spi->dev, "Failed cmd response, cmd (%02x)"
 			 ", resp (%02x)\n", cmd, rsp);
 		result = N_FAIL;
 		return result;
@@ -441,8 +458,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 	 **/
 	rsp = rb[rix++];
 	if (rsp != 0x00) {
-		PRINT_ER("[wilc spi]: Failed cmd state response "
-			 "state (%02x)\n", rsp);
+		dev_err(&spi->dev, "Failed cmd state response state (%02x)\n",
+			rsp);
 		result = N_FAIL;
 		return result;
 	}
@@ -469,8 +486,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 		} while (retry--);
 
 		if (retry <= 0) {
-			PRINT_ER("[wilc spi]: Error, data read "
-				 "response (%02x)\n", rsp);
+			dev_err(&spi->dev,
+				"Error, data read response (%02x)\n", rsp);
 			result = N_RESET;
 			return result;
 		}
@@ -485,7 +502,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				b[2] = rb[rix++];
 				b[3] = rb[rix++];
 			} else {
-				PRINT_ER("[wilc spi]: buffer overrun when reading data.\n");
+				dev_err(&spi->dev,
+					"buffer overrun when reading data.\n");
 				result = N_FAIL;
 				return result;
 			}
@@ -498,7 +516,7 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 					crc[0] = rb[rix++];
 					crc[1] = rb[rix++];
 				} else {
-					PRINT_ER("[wilc spi]: buffer overrun when reading crc.\n");
+					dev_err(&spi->dev,"buffer overrun when reading crc.\n");
 					result = N_FAIL;
 					return result;
 				}
@@ -524,8 +542,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				/**
 				 * Read bytes
 				 **/
-				if (!g_spi.spi_rx(&b[ix], nbytes)) {
-					PRINT_ER("[wilc spi]: Failed data block read, bus error...\n");
+				if (wilc_spi_rx(wilc, &b[ix], nbytes)) {
+					dev_err(&spi->dev, "Failed data block read, bus error...\n");
 					result = N_FAIL;
 					goto _error_;
 				}
@@ -534,8 +552,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				 * Read Crc
 				 **/
 				if (!g_spi.crc_off) {
-					if (!g_spi.spi_rx(crc, 2)) {
-						PRINT_ER("[wilc spi]: Failed data block crc read, bus error...\n");
+					if (wilc_spi_rx(wilc, crc, 2)) {
+						dev_err(&spi->dev, "Failed data block crc read, bus error...\n");
 						result = N_FAIL;
 						goto _error_;
 					}
@@ -565,8 +583,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				 **/
 				retry = 10;
 				do {
-					if (!g_spi.spi_rx(&rsp, 1)) {
-						PRINT_ER("[wilc spi]: Failed data response read, bus error...\n");
+					if (wilc_spi_rx(wilc, &rsp, 1)) {
+						dev_err(&spi->dev, "Failed data response read, bus error...\n");
 						result = N_FAIL;
 						break;
 					}
@@ -581,8 +599,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				/**
 				 * Read bytes
 				 **/
-				if (!g_spi.spi_rx(&b[ix], nbytes)) {
-					PRINT_ER("[wilc spi]: Failed data block read, bus error...\n");
+				if (wilc_spi_rx(wilc, &b[ix], nbytes)) {
+					dev_err(&spi->dev, "Failed data block read, bus error...\n");
 					result = N_FAIL;
 					break;
 				}
@@ -591,8 +609,8 @@ static int spi_cmd_complete(u8 cmd, u32 adr, u8 *b, u32 sz, u8 clockless)
 				 * Read Crc
 				 **/
 				if (!g_spi.crc_off) {
-					if (!g_spi.spi_rx(crc, 2)) {
-						PRINT_ER("[wilc spi]: Failed data block crc read, bus error...\n");
+					if (wilc_spi_rx(wilc, crc, 2)) {
+						dev_err(&spi->dev, "Failed data block crc read, bus error...\n");
 						result = N_FAIL;
 						break;
 					}
@@ -607,76 +625,9 @@ _error_:
 	return result;
 }
 
-static int spi_data_read(u8 *b, u32 sz)
-{
-	int retry, ix, nbytes;
-	int result = N_OK;
-	u8 crc[2];
-	u8 rsp;
-
-	/**
-	 *      Data
-	 **/
-	ix = 0;
-	do {
-		if (sz <= DATA_PKT_SZ)
-			nbytes = sz;
-		else
-			nbytes = DATA_PKT_SZ;
-
-		/**
-		 *      Data Respnose header
-		 **/
-		retry = 10;
-		do {
-			if (!g_spi.spi_rx(&rsp, 1)) {
-				PRINT_ER("[wilc spi]: Failed data response read, bus error...\n");
-				result = N_FAIL;
-				break;
-			}
-			if (((rsp >> 4) & 0xf) == 0xf)
-				break;
-		} while (retry--);
-
-		if (result == N_FAIL)
-			break;
-
-		if (retry <= 0) {
-			PRINT_ER("[wilc spi]: Failed data response read...(%02x)\n", rsp);
-			result = N_FAIL;
-			break;
-		}
-
-		/**
-		 *      Read bytes
-		 **/
-		if (!g_spi.spi_rx(&b[ix], nbytes)) {
-			PRINT_ER("[wilc spi]: Failed data block read, bus error...\n");
-			result = N_FAIL;
-			break;
-		}
-
-		/**
-		 *      Read Crc
-		 **/
-		if (!g_spi.crc_off) {
-			if (!g_spi.spi_rx(crc, 2)) {
-				PRINT_ER("[wilc spi]: Failed data block crc read, bus error...\n");
-				result = N_FAIL;
-				break;
-			}
-		}
-
-		ix += nbytes;
-		sz -= nbytes;
-
-	} while (sz);
-
-	return result;
-}
-
-static int spi_data_write(u8 *b, u32 sz)
+static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int ix, nbytes;
 	int result = 1;
 	u8 cmd, order, crc[2] = {0};
@@ -709,8 +660,9 @@ static int spi_data_write(u8 *b, u32 sz)
 				order = 0x2;
 		}
 		cmd |= order;
-		if (!g_spi.spi_tx(&cmd, 1)) {
-			PRINT_ER("[wilc spi]: Failed data block cmd write, bus error...\n");
+		if (wilc_spi_tx(wilc, &cmd, 1)) {
+			dev_err(&spi->dev,
+				"Failed data block cmd write, bus error...\n");
 			result = N_FAIL;
 			break;
 		}
@@ -718,8 +670,9 @@ static int spi_data_write(u8 *b, u32 sz)
 		/**
 		 *      Write data
 		 **/
-		if (!g_spi.spi_tx(&b[ix], nbytes)) {
-			PRINT_ER("[wilc spi]: Failed data block write, bus error...\n");
+		if (wilc_spi_tx(wilc, &b[ix], nbytes)) {
+			dev_err(&spi->dev,
+				"Failed data block write, bus error...\n");
 			result = N_FAIL;
 			break;
 		}
@@ -728,8 +681,8 @@ static int spi_data_write(u8 *b, u32 sz)
 		 *      Write Crc
 		 **/
 		if (!g_spi.crc_off) {
-			if (!g_spi.spi_tx(crc, 2)) {
-				PRINT_ER("[wilc spi]: Failed data block crc write, bus error...\n");
+			if (wilc_spi_tx(wilc, crc, 2)) {
+				dev_err(&spi->dev,"Failed data block crc write, bus error...\n");
 				result = N_FAIL;
 				break;
 			}
@@ -752,34 +705,34 @@ static int spi_data_write(u8 *b, u32 sz)
  *
  ********************************************/
 
-static int spi_internal_write(u32 adr, u32 dat)
+static int spi_internal_write(struct wilc *wilc, u32 adr, u32 dat)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int result;
 
-#ifdef BIG_ENDIAN
-	dat = BYTE_SWAP(dat);
-#endif
-	result = spi_cmd_complete(CMD_INTERNAL_WRITE, adr, (u8 *)&dat, 4, 0);
+	dat = cpu_to_le32(dat);
+	result = spi_cmd_complete(wilc, CMD_INTERNAL_WRITE, adr, (u8 *)&dat, 4,
+				  0);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed internal write cmd...\n");
+		dev_err(&spi->dev, "Failed internal write cmd...\n");
 	}
 
 	return result;
 }
 
-static int spi_internal_read(u32 adr, u32 *data)
+static int spi_internal_read(struct wilc *wilc, u32 adr, u32 *data)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int result;
 
-	result = spi_cmd_complete(CMD_INTERNAL_READ, adr, (u8 *)data, 4, 0);
+	result = spi_cmd_complete(wilc, CMD_INTERNAL_READ, adr, (u8 *)data, 4,
+				  0);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed internal read cmd...\n");
+		dev_err(&spi->dev, "Failed internal read cmd...\n");
 		return 0;
 	}
 
-#ifdef BIG_ENDIAN
-	*data = BYTE_SWAP(*data);
-#endif
+	*data = cpu_to_le32(*data);
 
 	return 1;
 }
@@ -790,31 +743,31 @@ static int spi_internal_read(u32 adr, u32 *data)
  *
  ********************************************/
 
-static int spi_write_reg(u32 addr, u32 data)
+static int wilc_spi_write_reg(struct wilc *wilc, u32 addr, u32 data)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int result = N_OK;
 	u8 cmd = CMD_SINGLE_WRITE;
 	u8 clockless = 0;
 
-#ifdef BIG_ENDIAN
-	data = BYTE_SWAP(data);
-#endif
+	data = cpu_to_le32(data);
 	if (addr < 0x30) {
 		/* Clockless register*/
 		cmd = CMD_INTERNAL_WRITE;
 		clockless = 1;
 	}
 
-	result = spi_cmd_complete(cmd, addr, (u8 *)&data, 4, clockless);
+	result = spi_cmd_complete(wilc, cmd, addr, (u8 *)&data, 4, clockless);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed cmd, write reg (%08x)...\n", addr);
+		dev_err(&spi->dev, "Failed cmd, write reg (%08x)...\n", addr);
 	}
 
 	return result;
 }
 
-static int spi_write(u32 addr, u8 *buf, u32 size)
+static int wilc_spi_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int result;
 	u8 cmd = CMD_DMA_EXT_WRITE;
 
@@ -824,60 +777,61 @@ static int spi_write(u32 addr, u8 *buf, u32 size)
 	if (size <= 4)
 		return 0;
 
-	result = spi_cmd_complete(cmd, addr, NULL, size, 0);
+	result = spi_cmd_complete(wilc, cmd, addr, NULL, size, 0);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed cmd, write block (%08x)...\n", addr);
+		dev_err(&spi->dev,
+			"Failed cmd, write block (%08x)...\n", addr);
 		return 0;
 	}
 
 	/**
 	 *      Data
 	 **/
-	result = spi_data_write(buf, size);
+	result = spi_data_write(wilc, buf, size);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed block data write...\n");
+		dev_err(&spi->dev, "Failed block data write...\n");
 	}
 
 	return 1;
 }
 
-static int spi_read_reg(u32 addr, u32 *data)
+static int wilc_spi_read_reg(struct wilc *wilc, u32 addr, u32 *data)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int result = N_OK;
 	u8 cmd = CMD_SINGLE_READ;
 	u8 clockless = 0;
 
 	if (addr < 0x30) {
-		/* PRINT_ER("***** read addr %d\n\n", addr); */
+		/* dev_err(&spi->dev, "***** read addr %d\n\n", addr); */
 		/* Clockless register*/
 		cmd = CMD_INTERNAL_READ;
 		clockless = 1;
 	}
 
-	result = spi_cmd_complete(cmd, addr, (u8 *)data, 4, clockless);
+	result = spi_cmd_complete(wilc, cmd, addr, (u8 *)data, 4, clockless);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed cmd, read reg (%08x)...\n", addr);
+		dev_err(&spi->dev, "Failed cmd, read reg (%08x)...\n", addr);
 		return 0;
 	}
 
-#ifdef BIG_ENDIAN
-	*data = BYTE_SWAP(*data);
-#endif
+	*data = cpu_to_le32(*data);
 
 	return 1;
 }
 
-static int spi_read(u32 addr, u8 *buf, u32 size)
+static int wilc_spi_read(struct wilc *wilc, u32 addr, u8 *buf, u32 size)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	u8 cmd = CMD_DMA_EXT_READ;
 	int result;
 
 	if (size <= 4)
 		return 0;
 
-	result = spi_cmd_complete(cmd, addr, buf, size, 0);
+	result = spi_cmd_complete(wilc, cmd, addr, buf, size, 0);
 	if (result != N_OK) {
-		PRINT_ER("[wilc spi]: Failed cmd, read block (%08x)...\n", addr);
+		dev_err(&spi->dev, "Failed cmd, read block (%08x)...\n", addr);
 		return 0;
 	}
 
@@ -890,20 +844,7 @@ static int spi_read(u32 addr, u8 *buf, u32 size)
  *
  ********************************************/
 
-static int spi_clear_int(void)
-{
-	u32 reg;
-
-	if (!spi_read_reg(WILC_HOST_RX_CTRL_0, &reg)) {
-		PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_HOST_RX_CTRL_0);
-		return 0;
-	}
-	reg &= ~0x1;
-	spi_write_reg(WILC_HOST_RX_CTRL_0, reg);
-	return 1;
-}
-
-static int spi_deinit(void *pv)
+static int _wilc_spi_deinit(struct wilc *wilc)
 {
 	/**
 	 *      TODO:
@@ -911,46 +852,9 @@ static int spi_deinit(void *pv)
 	return 1;
 }
 
-static int spi_sync(void)
-{
-	u32 reg;
-	int ret;
-
-	/**
-	 *      interrupt pin mux select
-	 **/
-	ret = spi_read_reg(WILC_PIN_MUX_0, &reg);
-	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
-		return 0;
-	}
-	reg |= BIT(8);
-	ret = spi_write_reg(WILC_PIN_MUX_0, reg);
-	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
-		return 0;
-	}
-
-	/**
-	 *      interrupt enable
-	 **/
-	ret = spi_read_reg(WILC_INTR_ENABLE, &reg);
-	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
-		return 0;
-	}
-	reg |= BIT(16);
-	ret = spi_write_reg(WILC_INTR_ENABLE, reg);
-	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
-		return 0;
-	}
-
-	return 1;
-}
-
-static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
+static int wilc_spi_init(struct wilc *wilc)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	u32 reg;
 	u32 chipid;
 
@@ -958,8 +862,8 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 
 	if (isinit) {
 
-		if (!spi_read_reg(0x1000, &chipid)) {
-			PRINT_ER("[wilc spi]: Fail cmd read chip id...\n");
+		if (!wilc_spi_read_reg(wilc, 0x1000, &chipid)) {
+			dev_err(&spi->dev, "Fail cmd read chip id...\n");
 			return 0;
 		}
 		return 1;
@@ -967,21 +871,6 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 
 	memset(&g_spi, 0, sizeof(wilc_spi_t));
 
-	g_spi.dPrint = func;
-	g_spi.os_context = inp->os_context.os_private;
-	if (inp->io_func.io_init) {
-		if (!inp->io_func.io_init(g_spi.os_context)) {
-			PRINT_ER("[wilc spi]: Failed io init bus...\n");
-			return 0;
-		}
-	} else {
-		return 0;
-	}
-	g_spi.spi_tx = inp->io_func.u.spi.spi_tx;
-	g_spi.spi_rx = inp->io_func.u.spi.spi_rx;
-	g_spi.spi_trx = inp->io_func.u.spi.spi_trx;
-	g_spi.spi_max_speed = inp->io_func.u.spi.spi_max_speed;
-
 	/**
 	 *      configure protocol
 	 **/
@@ -989,14 +878,15 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 
 	/* TODO: We can remove the CRC trials if there is a definite way to reset */
 	/* the SPI to it's initial value. */
-	if (!spi_internal_read(WILC_SPI_PROTOCOL_OFFSET, &reg)) {
+	if (!spi_internal_read(wilc, WILC_SPI_PROTOCOL_OFFSET, &reg)) {
 		/* Read failed. Try with CRC off. This might happen when module
 		 * is removed but chip isn't reset*/
 		g_spi.crc_off = 1;
-		PRINT_ER("[wilc spi]: Failed internal read protocol with CRC on, retyring with CRC off...\n");
-		if (!spi_internal_read(WILC_SPI_PROTOCOL_OFFSET, &reg)) {
+		dev_err(&spi->dev, "Failed internal read protocol with CRC on, retyring with CRC off...\n");
+		if (!spi_internal_read(wilc, WILC_SPI_PROTOCOL_OFFSET, &reg)) {
 			/* Reaad failed with both CRC on and off, something went bad */
-			PRINT_ER("[wilc spi]: Failed internal read protocol...\n");
+			dev_err(&spi->dev,
+				"Failed internal read protocol...\n");
 			return 0;
 		}
 	}
@@ -1004,8 +894,8 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 		reg &= ~0xc;    /* disable crc checking */
 		reg &= ~0x70;
 		reg |= (0x5 << 4);
-		if (!spi_internal_write(WILC_SPI_PROTOCOL_OFFSET, reg)) {
-			PRINT_ER("[wilc spi %d]: Failed internal write protocol reg...\n", __LINE__);
+		if (!spi_internal_write(wilc, WILC_SPI_PROTOCOL_OFFSET, reg)) {
+			dev_err(&spi->dev, "[wilc spi %d]: Failed internal write protocol reg...\n", __LINE__);
 			return 0;
 		}
 		g_spi.crc_off = 1;
@@ -1015,11 +905,11 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	/**
 	 *      make sure can read back chip id correctly
 	 **/
-	if (!spi_read_reg(0x1000, &chipid)) {
-		PRINT_ER("[wilc spi]: Fail cmd read chip id...\n");
+	if (!wilc_spi_read_reg(wilc, 0x1000, &chipid)) {
+		dev_err(&spi->dev, "Fail cmd read chip id...\n");
 		return 0;
 	}
-	/* PRINT_ER("[wilc spi]: chipid (%08x)\n", chipid); */
+	/* dev_err(&spi->dev, "chipid (%08x)\n", chipid); */
 
 	g_spi.has_thrpt_enh = 1;
 
@@ -1028,29 +918,24 @@ static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 	return 1;
 }
 
-static void spi_max_bus_speed(void)
-{
-	g_spi.spi_max_speed();
-}
-
-static void spi_default_bus_speed(void)
-{
-}
-
-static int spi_read_size(u32 *size)
+static int wilc_spi_read_size(struct wilc *wilc, u32 *size)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int ret;
 
 	if (g_spi.has_thrpt_enh) {
-		ret = spi_internal_read(0xe840 - WILC_SPI_REG_BASE, size);
+		ret = spi_internal_read(wilc, 0xe840 - WILC_SPI_REG_BASE,
+					size);
 		*size = *size  & IRQ_DMA_WD_CNT_MASK;
 	} else {
 		u32 tmp;
 		u32 byte_cnt;
 
-		ret = spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
+		ret = wilc_spi_read_reg(wilc, WILC_VMM_TO_HOST_SIZE,
+					&byte_cnt);
 		if (!ret) {
-			PRINT_ER("[wilc spi]: Failed read WILC_VMM_TO_HOST_SIZE ...\n");
+			dev_err(&spi->dev,
+				"Failed read WILC_VMM_TO_HOST_SIZE ...\n");
 			goto _fail_;
 		}
 		tmp = (byte_cnt >> 2) & IRQ_DMA_WD_CNT_MASK;
@@ -1065,19 +950,23 @@ _fail_:
 
 
 
-static int spi_read_int(u32 *int_status)
+static int wilc_spi_read_int(struct wilc *wilc, u32 *int_status)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int ret;
 
 	if (g_spi.has_thrpt_enh) {
-		ret = spi_internal_read(0xe840 - WILC_SPI_REG_BASE, int_status);
+		ret = spi_internal_read(wilc, 0xe840 - WILC_SPI_REG_BASE,
+					int_status);
 	} else {
 		u32 tmp;
 		u32 byte_cnt;
 
-		ret = spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
+		ret = wilc_spi_read_reg(wilc, WILC_VMM_TO_HOST_SIZE,
+					&byte_cnt);
 		if (!ret) {
-			PRINT_ER("[wilc spi]: Failed read WILC_VMM_TO_HOST_SIZE ...\n");
+			dev_err(&spi->dev,
+				"Failed read WILC_VMM_TO_HOST_SIZE ...\n");
 			goto _fail_;
 		}
 		tmp = (byte_cnt >> 2) & IRQ_DMA_WD_CNT_MASK;
@@ -1091,11 +980,12 @@ static int spi_read_int(u32 *int_status)
 
 				happended = 0;
 
-				spi_read_reg(0x1a90, &irq_flags);
+				wilc_spi_read_reg(wilc, 0x1a90, &irq_flags);
 				tmp |= ((irq_flags >> 27) << IRG_FLAGS_OFFSET);
 
 				if (g_spi.nint > 5) {
-					spi_read_reg(0x1a94, &irq_flags);
+					wilc_spi_read_reg(wilc, 0x1a94,
+							  &irq_flags);
 					tmp |= (((irq_flags >> 0) & 0x7) << (IRG_FLAGS_OFFSET + 5));
 				}
 
@@ -1105,7 +995,7 @@ static int spi_read_int(u32 *int_status)
 					unkmown_mask = ~((1ul << g_spi.nint) - 1);
 
 					if ((tmp >> IRG_FLAGS_OFFSET) & unkmown_mask) {
-						PRINT_ER("[wilc spi]: Unexpected interrupt (2): j=%d, tmp=%x, mask=%x\n", j, tmp, unkmown_mask);
+						dev_err(&spi->dev, "Unexpected interrupt (2): j=%d, tmp=%x, mask=%x\n", j, tmp, unkmown_mask);
 						happended = 1;
 					}
 				}
@@ -1121,12 +1011,14 @@ _fail_:
 	return ret;
 }
 
-static int spi_clear_int_ext(u32 val)
+static int wilc_spi_clear_int_ext(struct wilc *wilc, u32 val)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	int ret;
 
 	if (g_spi.has_thrpt_enh) {
-		ret = spi_internal_write(0xe844 - WILC_SPI_REG_BASE, val);
+		ret = spi_internal_write(wilc, 0xe844 - WILC_SPI_REG_BASE,
+					 val);
 	} else {
 		u32 flags;
 
@@ -1138,18 +1030,22 @@ static int spi_clear_int_ext(u32 val)
 			for (i = 0; i < g_spi.nint; i++) {
 				/* No matter what you write 1 or 0, it will clear interrupt. */
 				if (flags & 1)
-					ret = spi_write_reg(0x10c8 + i * 4, 1);
+					ret = wilc_spi_write_reg(wilc, 0x10c8 + i * 4, 1);
 				if (!ret)
 					break;
 				flags >>= 1;
 			}
 			if (!ret) {
-				PRINT_ER("[wilc spi]: Failed spi_write_reg, set reg %x ...\n", 0x10c8 + i * 4);
+				dev_err(&spi->dev,
+					"Failed wilc_spi_write_reg, set reg %x ...\n",
+					0x10c8 + i * 4);
 				goto _fail_;
 			}
 			for (i = g_spi.nint; i < MAX_NUM_INT; i++) {
 				if (flags & 1)
-					PRINT_ER("[wilc spi]: Unexpected interrupt cleared %d...\n", i);
+					dev_err(&spi->dev,
+						"Unexpected interrupt cleared %d...\n",
+						i);
 				flags >>= 1;
 			}
 		}
@@ -1165,9 +1061,11 @@ static int spi_clear_int_ext(u32 val)
 			if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
 				tbl_ctl |= BIT(1);
 
-			ret = spi_write_reg(WILC_VMM_TBL_CTL, tbl_ctl);
+			ret = wilc_spi_write_reg(wilc, WILC_VMM_TBL_CTL,
+						 tbl_ctl);
 			if (!ret) {
-				PRINT_ER("[wilc spi]: fail write reg vmm_tbl_ctl...\n");
+				dev_err(&spi->dev,
+					"fail write reg vmm_tbl_ctl...\n");
 				goto _fail_;
 			}
 
@@ -1175,9 +1073,10 @@ static int spi_clear_int_ext(u32 val)
 				/**
 				 *      enable vmm transfer.
 				 **/
-				ret = spi_write_reg(WILC_VMM_CORE_CTL, 1);
+				ret = wilc_spi_write_reg(wilc,
+							 WILC_VMM_CORE_CTL, 1);
 				if (!ret) {
-					PRINT_ER("[wilc spi]: fail write reg vmm_core_ctl...\n");
+					dev_err(&spi->dev,"fail write reg vmm_core_ctl...\n");
 					goto _fail_;
 				}
 			}
@@ -1187,13 +1086,14 @@ _fail_:
 	return ret;
 }
 
-static int spi_sync_ext(int nint /*  how mant interrupts to enable. */)
+static int wilc_spi_sync_ext(struct wilc *wilc, int nint)
 {
+	struct spi_device *spi = to_spi_device(wilc->dev);
 	u32 reg;
 	int ret, i;
 
 	if (nint > MAX_NUM_INT) {
-		PRINT_ER("[wilc spi]: Too many interupts (%d)...\n", nint);
+		dev_err(&spi->dev, "Too many interupts (%d)...\n", nint);
 		return 0;
 	}
 
@@ -1202,39 +1102,44 @@ static int spi_sync_ext(int nint /*  how mant interrupts to enable. */)
 	/**
 	 *      interrupt pin mux select
 	 **/
-	ret = spi_read_reg(WILC_PIN_MUX_0, &reg);
+	ret = wilc_spi_read_reg(wilc, WILC_PIN_MUX_0, &reg);
 	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
+		dev_err(&spi->dev, "Failed read reg (%08x)...\n",
+			WILC_PIN_MUX_0);
 		return 0;
 	}
 	reg |= BIT(8);
-	ret = spi_write_reg(WILC_PIN_MUX_0, reg);
+	ret = wilc_spi_write_reg(wilc, WILC_PIN_MUX_0, reg);
 	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
+		dev_err(&spi->dev, "Failed write reg (%08x)...\n",
+			WILC_PIN_MUX_0);
 		return 0;
 	}
 
 	/**
 	 *      interrupt enable
 	 **/
-	ret = spi_read_reg(WILC_INTR_ENABLE, &reg);
+	ret = wilc_spi_read_reg(wilc, WILC_INTR_ENABLE, &reg);
 	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
+		dev_err(&spi->dev, "Failed read reg (%08x)...\n",
+			WILC_INTR_ENABLE);
 		return 0;
 	}
 
 	for (i = 0; (i < 5) && (nint > 0); i++, nint--) {
 		reg |= (BIT((27 + i)));
 	}
-	ret = spi_write_reg(WILC_INTR_ENABLE, reg);
+	ret = wilc_spi_write_reg(wilc, WILC_INTR_ENABLE, reg);
 	if (!ret) {
-		PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
+		dev_err(&spi->dev, "Failed write reg (%08x)...\n",
+			WILC_INTR_ENABLE);
 		return 0;
 	}
 	if (nint) {
-		ret = spi_read_reg(WILC_INTR2_ENABLE, &reg);
+		ret = wilc_spi_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
 		if (!ret) {
-			PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR2_ENABLE);
+			dev_err(&spi->dev, "Failed read reg (%08x)...\n",
+				WILC_INTR2_ENABLE);
 			return 0;
 		}
 
@@ -1242,9 +1147,10 @@ static int spi_sync_ext(int nint /*  how mant interrupts to enable. */)
 			reg |= BIT(i);
 		}
 
-		ret = spi_read_reg(WILC_INTR2_ENABLE, &reg);
+		ret = wilc_spi_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
 		if (!ret) {
-			PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR2_ENABLE);
+			dev_err(&spi->dev, "Failed write reg (%08x)...\n",
+				WILC_INTR2_ENABLE);
 			return 0;
 		}
 	}
@@ -1256,21 +1162,17 @@ static int spi_sync_ext(int nint /*  how mant interrupts to enable. */)
  *      Global spi HIF function table
  *
  ********************************************/
-wilc_hif_func_t hif_spi = {
-	spi_init,
-	spi_deinit,
-	spi_read_reg,
-	spi_write_reg,
-	spi_read,
-	spi_write,
-	spi_sync,
-	spi_clear_int,
-	spi_read_int,
-	spi_clear_int_ext,
-	spi_read_size,
-	spi_write,
-	spi_read,
-	spi_sync_ext,
-	spi_max_bus_speed,
-	spi_default_bus_speed,
+const struct wilc_hif_func wilc_hif_spi = {
+	.hif_init = wilc_spi_init,
+	.hif_deinit = _wilc_spi_deinit,
+	.hif_read_reg = wilc_spi_read_reg,
+	.hif_write_reg = wilc_spi_write_reg,
+	.hif_block_rx = wilc_spi_read,
+	.hif_block_tx = wilc_spi_write,
+	.hif_read_int = wilc_spi_read_int,
+	.hif_clear_int_ext = wilc_spi_clear_int_ext,
+	.hif_read_size = wilc_spi_read_size,
+	.hif_block_tx_ext = wilc_spi_write,
+	.hif_block_rx_ext = wilc_spi_read,
+	.hif_sync_ext = wilc_spi_sync_ext,
 };
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index 3e9501727812..53fb2d4bb0bd 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -1,40 +1,101 @@
-/*!
- *  @file	wilc_wfi_cfgopertaions.c
- *  @brief	CFG80211 Function Implementation functionality
- *  @author	aabouzaeid
- *                      mabubakr
- *                      mdaftedar
- *                      zsalah
- *  @sa		wilc_wfi_cfgopertaions.h top level OS wrapper file
- *  @date	31 Aug 2010
- *  @version	1.0
- */
-
 #include "wilc_wfi_cfgoperations.h"
-#ifdef WILC_SDIO
-#include "linux_wlan_sdio.h"
-#endif
+#include "host_interface.h"
 #include <linux/errno.h>
 
+#define NO_ENCRYPT		0
+#define ENCRYPT_ENABLED		BIT(0)
+#define WEP			BIT(1)
+#define WEP_EXTENDED		BIT(2)
+#define WPA			BIT(3)
+#define WPA2			BIT(4)
+#define AES			BIT(5)
+#define TKIP			BIT(6)
+
+#define FRAME_TYPE_ID			0
+#define ACTION_CAT_ID			24
+#define ACTION_SUBTYPE_ID		25
+#define P2P_PUB_ACTION_SUBTYPE		30
+
+#define ACTION_FRAME			0xd0
+#define GO_INTENT_ATTR_ID		0x04
+#define CHANLIST_ATTR_ID		0x0b
+#define OPERCHAN_ATTR_ID		0x11
+#define PUB_ACTION_ATTR_ID		0x04
+#define P2PELEM_ATTR_ID			0xdd
+
+#define GO_NEG_REQ			0x00
+#define GO_NEG_RSP			0x01
+#define GO_NEG_CONF			0x02
+#define P2P_INV_REQ			0x03
+#define P2P_INV_RSP			0x04
+#define PUBLIC_ACT_VENDORSPEC		0x09
+#define GAS_INTIAL_REQ			0x0a
+#define GAS_INTIAL_RSP			0x0b
+
+#define INVALID_CHANNEL			0
+
+#define nl80211_SCAN_RESULT_EXPIRE	(3 * HZ)
+#define SCAN_RESULT_EXPIRE		(40 * HZ)
+
+static const u32 cipher_suites[] = {
+	WLAN_CIPHER_SUITE_WEP40,
+	WLAN_CIPHER_SUITE_WEP104,
+	WLAN_CIPHER_SUITE_TKIP,
+	WLAN_CIPHER_SUITE_CCMP,
+	WLAN_CIPHER_SUITE_AES_CMAC,
+};
+
+static const struct ieee80211_txrx_stypes
+	wilc_wfi_cfg80211_mgmt_types[NUM_NL80211_IFTYPES] = {
+	[NL80211_IFTYPE_STATION] = {
+		.tx = 0xffff,
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+			BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
+	},
+	[NL80211_IFTYPE_AP] = {
+		.tx = 0xffff,
+		.rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
+			BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
+			BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
+			BIT(IEEE80211_STYPE_DISASSOC >> 4) |
+			BIT(IEEE80211_STYPE_AUTH >> 4) |
+			BIT(IEEE80211_STYPE_DEAUTH >> 4) |
+			BIT(IEEE80211_STYPE_ACTION >> 4)
+	},
+	[NL80211_IFTYPE_P2P_CLIENT] = {
+		.tx = 0xffff,
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+			BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
+			BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
+			BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
+			BIT(IEEE80211_STYPE_DISASSOC >> 4) |
+			BIT(IEEE80211_STYPE_AUTH >> 4) |
+			BIT(IEEE80211_STYPE_DEAUTH >> 4)
+	}
+};
+
+#define WILC_WFI_DWELL_PASSIVE 100
+#define WILC_WFI_DWELL_ACTIVE  40
+
+#define TCP_ACK_FILTER_LINK_SPEED_THRESH	54
+#define DEFAULT_LINK_SPEED			72
+
+
 #define IS_MANAGMEMENT				0x100
 #define IS_MANAGMEMENT_CALLBACK			0x080
 #define IS_MGMT_STATUS_SUCCES			0x040
 #define GET_PKT_OFFSET(a) (((a) >> 22) & 0x1ff)
 
-extern int linux_wlan_get_firmware(perInterface_wlan_t *p_nic);
+extern int wilc_mac_open(struct net_device *ndev);
+extern int wilc_mac_close(struct net_device *ndev);
 
-extern int mac_open(struct net_device *ndev);
-extern int mac_close(struct net_device *ndev);
-
-tstrNetworkInfo astrLastScannedNtwrksShadow[MAX_NUM_SCANNED_NETWORKS_SHADOW];
-u32 u32LastScannedNtwrksCountShadow;
-struct timer_list hDuringIpTimer;
-struct timer_list hAgingTimer;
+static tstrNetworkInfo last_scanned_shadow[MAX_NUM_SCANNED_NETWORKS_SHADOW];
+static u32 last_scanned_cnt;
+struct timer_list wilc_during_ip_timer;
+static struct timer_list hAgingTimer;
 static u8 op_ifcs;
-extern u8 u8ConnectedSSID[6];
 
-u8 g_wilc_initialized = 1;
-extern bool g_obtainingIP;
+u8 wilc_initialized = 1;
 
 #define CHAN2G(_channel, _freq, _flags) {	 \
 		.band             = IEEE80211_BAND_2GHZ, \
@@ -45,8 +106,7 @@ extern bool g_obtainingIP;
 		.max_power        = 30,			 \
 }
 
-/*Frequency range for channels*/
-static struct ieee80211_channel WILC_WFI_2ghz_channels[] = {
+static struct ieee80211_channel ieee80211_2ghz_channels[] = {
 	CHAN2G(1,  2412, 0),
 	CHAN2G(2,  2417, 0),
 	CHAN2G(3,  2422, 0),
@@ -69,9 +129,7 @@ static struct ieee80211_channel WILC_WFI_2ghz_channels[] = {
 		.flags    = (_flags),			\
 }
 
-
-/* Table 6 in section 3.2.1.1 */
-static struct ieee80211_rate WILC_WFI_rates[] = {
+static struct ieee80211_rate ieee80211_bitrates[] = {
 	RATETAB_ENT(10,  0,  0),
 	RATETAB_ENT(20,  1,  0),
 	RATETAB_ENT(55,  2,  0),
@@ -91,22 +149,19 @@ struct p2p_mgmt_data {
 	u8 *buff;
 };
 
-/*Global variable used to state the current  connected STA channel*/
-u8 u8WLANChannel = INVALID_CHANNEL;
-
-u8 curr_channel;
-
-u8 u8P2P_oui[] = {0x50, 0x6f, 0x9A, 0x09};
-u8 u8P2Plocalrandom = 0x01;
-u8 u8P2Precvrandom = 0x00;
-u8 u8P2P_vendorspec[] = {0xdd, 0x05, 0x00, 0x08, 0x40, 0x03};
-bool bWilc_ie;
+static u8 wlan_channel = INVALID_CHANNEL;
+static u8 curr_channel;
+static u8 p2p_oui[] = {0x50, 0x6f, 0x9A, 0x09};
+static u8 p2p_local_random = 0x01;
+static u8 p2p_recv_random = 0x00;
+static u8 p2p_vendor_spec[] = {0xdd, 0x05, 0x00, 0x08, 0x40, 0x03};
+static bool wilc_ie;
 
 static struct ieee80211_supported_band WILC_WFI_band_2ghz = {
-	.channels = WILC_WFI_2ghz_channels,
-	.n_channels = ARRAY_SIZE(WILC_WFI_2ghz_channels),
-	.bitrates = WILC_WFI_rates,
-	.n_bitrates = ARRAY_SIZE(WILC_WFI_rates),
+	.channels = ieee80211_2ghz_channels,
+	.n_channels = ARRAY_SIZE(ieee80211_2ghz_channels),
+	.bitrates = ieee80211_bitrates,
+	.n_bitrates = ARRAY_SIZE(ieee80211_bitrates),
 };
 
 
@@ -115,19 +170,19 @@ struct add_key_params {
 	bool pairwise;
 	u8 *mac_addr;
 };
-struct add_key_params g_add_gtk_key_params;
-struct wilc_wfi_key g_key_gtk_params;
-struct add_key_params g_add_ptk_key_params;
-struct wilc_wfi_key g_key_ptk_params;
-struct wilc_wfi_wep_key g_key_wep_params;
-bool g_ptk_keys_saved;
-bool g_gtk_keys_saved;
-bool g_wep_keys_saved;
+static struct add_key_params g_add_gtk_key_params;
+static struct wilc_wfi_key g_key_gtk_params;
+static struct add_key_params g_add_ptk_key_params;
+static struct wilc_wfi_key g_key_ptk_params;
+static struct wilc_wfi_wep_key g_key_wep_params;
+static bool g_ptk_keys_saved;
+static bool g_gtk_keys_saved;
+static bool g_wep_keys_saved;
 
 #define AGING_TIME	(9 * 1000)
-#define duringIP_TIME 15000
+#define during_ip_time	15000
 
-void clear_shadow_scan(void *pUserVoid)
+static void clear_shadow_scan(void)
 {
 	int i;
 
@@ -135,34 +190,33 @@ void clear_shadow_scan(void *pUserVoid)
 		del_timer_sync(&hAgingTimer);
 		PRINT_INFO(CORECONFIG_DBG, "destroy aging timer\n");
 
-		for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-			if (astrLastScannedNtwrksShadow[u32LastScannedNtwrksCountShadow].pu8IEs != NULL) {
-				kfree(astrLastScannedNtwrksShadow[i].pu8IEs);
-				astrLastScannedNtwrksShadow[u32LastScannedNtwrksCountShadow].pu8IEs = NULL;
+		for (i = 0; i < last_scanned_cnt; i++) {
+			if (last_scanned_shadow[last_scanned_cnt].pu8IEs) {
+				kfree(last_scanned_shadow[i].pu8IEs);
+				last_scanned_shadow[last_scanned_cnt].pu8IEs = NULL;
 			}
 
-			host_int_freeJoinParams(astrLastScannedNtwrksShadow[i].pJoinParams);
-			astrLastScannedNtwrksShadow[i].pJoinParams = NULL;
+			wilc_free_join_params(last_scanned_shadow[i].pJoinParams);
+			last_scanned_shadow[i].pJoinParams = NULL;
 		}
-		u32LastScannedNtwrksCountShadow = 0;
+		last_scanned_cnt = 0;
 	}
-
 }
 
-u32 get_rssi_avg(tstrNetworkInfo *pstrNetworkInfo)
+static u32 get_rssi_avg(tstrNetworkInfo *network_info)
 {
 	u8 i;
 	int rssi_v = 0;
-	u8 num_rssi = (pstrNetworkInfo->strRssi.u8Full) ? NUM_RSSI : (pstrNetworkInfo->strRssi.u8Index);
+	u8 num_rssi = (network_info->strRssi.u8Full) ? NUM_RSSI : (network_info->strRssi.u8Index);
 
 	for (i = 0; i < num_rssi; i++)
-		rssi_v += pstrNetworkInfo->strRssi.as8RSSI[i];
+		rssi_v += network_info->strRssi.as8RSSI[i];
 
 	rssi_v /= num_rssi;
 	return rssi_v;
 }
 
-void refresh_scan(void *pUserVoid, u8 all, bool bDirectScan)
+static void refresh_scan(void *user_void, u8 all, bool direct_scan)
 {
 	struct wilc_priv *priv;
 	struct wiphy *wiphy;
@@ -170,55 +224,49 @@ void refresh_scan(void *pUserVoid, u8 all, bool bDirectScan)
 	int i;
 	int rssi = 0;
 
-	priv = (struct wilc_priv *)pUserVoid;
+	priv = (struct wilc_priv *)user_void;
 	wiphy = priv->dev->ieee80211_ptr->wiphy;
 
-	for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-		tstrNetworkInfo *pstrNetworkInfo;
+	for (i = 0; i < last_scanned_cnt; i++) {
+		tstrNetworkInfo *network_info;
 
-		pstrNetworkInfo = &(astrLastScannedNtwrksShadow[i]);
+		network_info = &last_scanned_shadow[i];
 
-
-		if ((!pstrNetworkInfo->u8Found) || all) {
-			s32 s32Freq;
+		if (!network_info->u8Found || all) {
+			s32 freq;
 			struct ieee80211_channel *channel;
 
-			if (pstrNetworkInfo != NULL) {
-
-				s32Freq = ieee80211_channel_to_frequency((s32)pstrNetworkInfo->u8channel, IEEE80211_BAND_2GHZ);
-				channel = ieee80211_get_channel(wiphy, s32Freq);
+			if (network_info) {
+				freq = ieee80211_channel_to_frequency((s32)network_info->u8channel, IEEE80211_BAND_2GHZ);
+				channel = ieee80211_get_channel(wiphy, freq);
 
-				rssi = get_rssi_avg(pstrNetworkInfo);
-				if (memcmp("DIRECT-", pstrNetworkInfo->au8ssid, 7) || bDirectScan)	{
-					bss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN, pstrNetworkInfo->au8bssid, pstrNetworkInfo->u64Tsf, pstrNetworkInfo->u16CapInfo,
-								  pstrNetworkInfo->u16BeaconPeriod, (const u8 *)pstrNetworkInfo->pu8IEs,
-								  (size_t)pstrNetworkInfo->u16IEsLen, (((s32)rssi) * 100), GFP_KERNEL);
+				rssi = get_rssi_avg(network_info);
+				if (memcmp("DIRECT-", network_info->au8ssid, 7) ||
+				    direct_scan) {
+					bss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN, network_info->au8bssid, network_info->u64Tsf, network_info->u16CapInfo,
+								  network_info->u16BeaconPeriod, (const u8 *)network_info->pu8IEs,
+								  (size_t)network_info->u16IEsLen, (((s32)rssi) * 100), GFP_KERNEL);
 					cfg80211_put_bss(wiphy, bss);
 				}
 			}
-
 		}
 	}
-
 }
 
-void reset_shadow_found(void *pUserVoid)
+static void reset_shadow_found(void)
 {
 	int i;
 
-	for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-		astrLastScannedNtwrksShadow[i].u8Found = 0;
-
-	}
+	for (i = 0; i < last_scanned_cnt; i++)
+		last_scanned_shadow[i].u8Found = 0;
 }
 
-void update_scan_time(void *pUserVoid)
+static void update_scan_time(void)
 {
 	int i;
 
-	for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-		astrLastScannedNtwrksShadow[i].u32TimeRcvdInScan = jiffies;
-	}
+	for (i = 0; i < last_scanned_cnt; i++)
+		last_scanned_shadow[i].u32TimeRcvdInScan = jiffies;
 }
 
 static void remove_network_from_shadow(unsigned long arg)
@@ -227,24 +275,25 @@ static void remove_network_from_shadow(unsigned long arg)
 	int i, j;
 
 
-	for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-		if (time_after(now, astrLastScannedNtwrksShadow[i].u32TimeRcvdInScan + (unsigned long)(SCAN_RESULT_EXPIRE))) {
-			PRINT_D(CFG80211_DBG, "Network expired in ScanShadow: %s\n", astrLastScannedNtwrksShadow[i].au8ssid);
+	for (i = 0; i < last_scanned_cnt; i++) {
+		if (time_after(now, last_scanned_shadow[i].u32TimeRcvdInScan + (unsigned long)(SCAN_RESULT_EXPIRE))) {
+			PRINT_D(CFG80211_DBG, "Network expired in ScanShadow: %s\n", last_scanned_shadow[i].au8ssid);
 
-			kfree(astrLastScannedNtwrksShadow[i].pu8IEs);
-			astrLastScannedNtwrksShadow[i].pu8IEs = NULL;
+			kfree(last_scanned_shadow[i].pu8IEs);
+			last_scanned_shadow[i].pu8IEs = NULL;
 
-			host_int_freeJoinParams(astrLastScannedNtwrksShadow[i].pJoinParams);
+			wilc_free_join_params(last_scanned_shadow[i].pJoinParams);
 
-			for (j = i; (j < u32LastScannedNtwrksCountShadow - 1); j++) {
-				astrLastScannedNtwrksShadow[j] = astrLastScannedNtwrksShadow[j + 1];
-			}
-			u32LastScannedNtwrksCountShadow--;
+			for (j = i; (j < last_scanned_cnt - 1); j++)
+				last_scanned_shadow[j] = last_scanned_shadow[j + 1];
+
+			last_scanned_cnt--;
 		}
 	}
 
-	PRINT_D(CFG80211_DBG, "Number of cached networks: %d\n", u32LastScannedNtwrksCountShadow);
-	if (u32LastScannedNtwrksCountShadow != 0) {
+	PRINT_D(CFG80211_DBG, "Number of cached networks: %d\n",
+		last_scanned_cnt);
+	if (last_scanned_cnt != 0) {
 		hAgingTimer.data = arg;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
 	} else {
@@ -255,24 +304,24 @@ static void remove_network_from_shadow(unsigned long arg)
 static void clear_duringIP(unsigned long arg)
 {
 	PRINT_D(GENERIC_DBG, "GO:IP Obtained , enable scan\n");
-	g_obtainingIP = false;
+	wilc_optaining_ip = false;
 }
 
-int is_network_in_shadow(tstrNetworkInfo *pstrNetworkInfo, void *pUserVoid)
+static int is_network_in_shadow(tstrNetworkInfo *pstrNetworkInfo,
+				void *user_void)
 {
 	int state = -1;
 	int i;
 
-	if (u32LastScannedNtwrksCountShadow == 0) {
+	if (last_scanned_cnt == 0) {
 		PRINT_D(CFG80211_DBG, "Starting Aging timer\n");
-		hAgingTimer.data = (unsigned long)pUserVoid;
+		hAgingTimer.data = (unsigned long)user_void;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
 		state = -1;
 	} else {
-		/* Linear search for now */
-		for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-			if (memcmp(astrLastScannedNtwrksShadow[i].au8bssid,
-					pstrNetworkInfo->au8bssid, 6) == 0) {
+		for (i = 0; i < last_scanned_cnt; i++) {
+			if (memcmp(last_scanned_shadow[i].au8bssid,
+				   pstrNetworkInfo->au8bssid, 6) == 0) {
 				state = i;
 				break;
 			}
@@ -281,78 +330,60 @@ int is_network_in_shadow(tstrNetworkInfo *pstrNetworkInfo, void *pUserVoid)
 	return state;
 }
 
-void add_network_to_shadow(tstrNetworkInfo *pstrNetworkInfo, void *pUserVoid, void *pJoinParams)
+static void add_network_to_shadow(tstrNetworkInfo *pstrNetworkInfo,
+				  void *user_void, void *pJoinParams)
 {
-	int ap_found = is_network_in_shadow(pstrNetworkInfo, pUserVoid);
+	int ap_found = is_network_in_shadow(pstrNetworkInfo, user_void);
 	u32 ap_index = 0;
 	u8 rssi_index = 0;
 
-	if (u32LastScannedNtwrksCountShadow >= MAX_NUM_SCANNED_NETWORKS_SHADOW) {
+	if (last_scanned_cnt >= MAX_NUM_SCANNED_NETWORKS_SHADOW) {
 		PRINT_D(CFG80211_DBG, "Shadow network reached its maximum limit\n");
 		return;
 	}
 	if (ap_found == -1) {
-		ap_index = u32LastScannedNtwrksCountShadow;
-		u32LastScannedNtwrksCountShadow++;
-
+		ap_index = last_scanned_cnt;
+		last_scanned_cnt++;
 	} else {
 		ap_index = ap_found;
 	}
-	rssi_index = astrLastScannedNtwrksShadow[ap_index].strRssi.u8Index;
-	astrLastScannedNtwrksShadow[ap_index].strRssi.as8RSSI[rssi_index++] = pstrNetworkInfo->s8rssi;
+	rssi_index = last_scanned_shadow[ap_index].strRssi.u8Index;
+	last_scanned_shadow[ap_index].strRssi.as8RSSI[rssi_index++] = pstrNetworkInfo->s8rssi;
 	if (rssi_index == NUM_RSSI) {
 		rssi_index = 0;
-		astrLastScannedNtwrksShadow[ap_index].strRssi.u8Full = 1;
-	}
-	astrLastScannedNtwrksShadow[ap_index].strRssi.u8Index = rssi_index;
-
-	astrLastScannedNtwrksShadow[ap_index].s8rssi = pstrNetworkInfo->s8rssi;
-	astrLastScannedNtwrksShadow[ap_index].u16CapInfo = pstrNetworkInfo->u16CapInfo;
-
-	astrLastScannedNtwrksShadow[ap_index].u8SsidLen = pstrNetworkInfo->u8SsidLen;
-	memcpy(astrLastScannedNtwrksShadow[ap_index].au8ssid,
-		    pstrNetworkInfo->au8ssid, pstrNetworkInfo->u8SsidLen);
-
-	memcpy(astrLastScannedNtwrksShadow[ap_index].au8bssid,
-		    pstrNetworkInfo->au8bssid, ETH_ALEN);
-
-	astrLastScannedNtwrksShadow[ap_index].u16BeaconPeriod = pstrNetworkInfo->u16BeaconPeriod;
-	astrLastScannedNtwrksShadow[ap_index].u8DtimPeriod = pstrNetworkInfo->u8DtimPeriod;
-	astrLastScannedNtwrksShadow[ap_index].u8channel = pstrNetworkInfo->u8channel;
-
-	astrLastScannedNtwrksShadow[ap_index].u16IEsLen = pstrNetworkInfo->u16IEsLen;
-	astrLastScannedNtwrksShadow[ap_index].u64Tsf = pstrNetworkInfo->u64Tsf;
+		last_scanned_shadow[ap_index].strRssi.u8Full = 1;
+	}
+	last_scanned_shadow[ap_index].strRssi.u8Index = rssi_index;
+	last_scanned_shadow[ap_index].s8rssi = pstrNetworkInfo->s8rssi;
+	last_scanned_shadow[ap_index].u16CapInfo = pstrNetworkInfo->u16CapInfo;
+	last_scanned_shadow[ap_index].u8SsidLen = pstrNetworkInfo->u8SsidLen;
+	memcpy(last_scanned_shadow[ap_index].au8ssid,
+	       pstrNetworkInfo->au8ssid, pstrNetworkInfo->u8SsidLen);
+	memcpy(last_scanned_shadow[ap_index].au8bssid,
+	       pstrNetworkInfo->au8bssid, ETH_ALEN);
+	last_scanned_shadow[ap_index].u16BeaconPeriod = pstrNetworkInfo->u16BeaconPeriod;
+	last_scanned_shadow[ap_index].u8DtimPeriod = pstrNetworkInfo->u8DtimPeriod;
+	last_scanned_shadow[ap_index].u8channel = pstrNetworkInfo->u8channel;
+	last_scanned_shadow[ap_index].u16IEsLen = pstrNetworkInfo->u16IEsLen;
+	last_scanned_shadow[ap_index].u64Tsf = pstrNetworkInfo->u64Tsf;
 	if (ap_found != -1)
-		kfree(astrLastScannedNtwrksShadow[ap_index].pu8IEs);
-	astrLastScannedNtwrksShadow[ap_index].pu8IEs =
-		kmalloc(pstrNetworkInfo->u16IEsLen, GFP_KERNEL);        /* will be deallocated by the WILC_WFI_CfgScan() function */
-	memcpy(astrLastScannedNtwrksShadow[ap_index].pu8IEs,
-		    pstrNetworkInfo->pu8IEs, pstrNetworkInfo->u16IEsLen);
-
-	astrLastScannedNtwrksShadow[ap_index].u32TimeRcvdInScan = jiffies;
-	astrLastScannedNtwrksShadow[ap_index].u32TimeRcvdInScanCached = jiffies;
-	astrLastScannedNtwrksShadow[ap_index].u8Found = 1;
+		kfree(last_scanned_shadow[ap_index].pu8IEs);
+	last_scanned_shadow[ap_index].pu8IEs =
+		kmalloc(pstrNetworkInfo->u16IEsLen, GFP_KERNEL);
+	memcpy(last_scanned_shadow[ap_index].pu8IEs,
+	       pstrNetworkInfo->pu8IEs, pstrNetworkInfo->u16IEsLen);
+	last_scanned_shadow[ap_index].u32TimeRcvdInScan = jiffies;
+	last_scanned_shadow[ap_index].u32TimeRcvdInScanCached = jiffies;
+	last_scanned_shadow[ap_index].u8Found = 1;
 	if (ap_found != -1)
-		host_int_freeJoinParams(astrLastScannedNtwrksShadow[ap_index].pJoinParams);
-	astrLastScannedNtwrksShadow[ap_index].pJoinParams = pJoinParams;
-
+		wilc_free_join_params(last_scanned_shadow[ap_index].pJoinParams);
+	last_scanned_shadow[ap_index].pJoinParams = pJoinParams;
 }
 
-
-/**
- *  @brief      CfgScanResult
- *  @details  Callback function which returns the scan results found
- *
- *  @param[in] tenuScanEvent enuScanEvent: enum, indicating the scan event triggered, whether that is
- *                        SCAN_EVENT_NETWORK_FOUND or SCAN_EVENT_DONE
- *                        tstrNetworkInfo* pstrNetworkInfo: structure holding the scan results information
- *                        void* pUserVoid: Private structure associated with the wireless interface
- *  @return     NONE
- *  @author	mabubakr
- *  @date
- *  @version	1.0
- */
-static void CfgScanResult(enum scan_event enuScanEvent, tstrNetworkInfo *pstrNetworkInfo, void *pUserVoid, void *pJoinParams)
+static void CfgScanResult(enum scan_event scan_event,
+			  tstrNetworkInfo *network_info,
+			  void *user_void,
+			  void *join_params)
 {
 	struct wilc_priv *priv;
 	struct wiphy *wiphy;
@@ -360,56 +391,45 @@ static void CfgScanResult(enum scan_event enuScanEvent, tstrNetworkInfo *pstrNet
 	struct ieee80211_channel *channel;
 	struct cfg80211_bss *bss = NULL;
 
-	priv = (struct wilc_priv *)pUserVoid;
+	priv = (struct wilc_priv *)user_void;
 	if (priv->bCfgScanning) {
-		if (enuScanEvent == SCAN_EVENT_NETWORK_FOUND) {
+		if (scan_event == SCAN_EVENT_NETWORK_FOUND) {
 			wiphy = priv->dev->ieee80211_ptr->wiphy;
 
 			if (!wiphy)
 				return;
 
-			if (wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC
-			    &&
-			    ((((s32)pstrNetworkInfo->s8rssi) * 100) < 0
-			     ||
-			     (((s32)pstrNetworkInfo->s8rssi) * 100) > 100)
-			    ) {
+			if (wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
+			    (((s32)network_info->s8rssi * 100) < 0 ||
+			    ((s32)network_info->s8rssi * 100) > 100)) {
 				PRINT_ER("wiphy signal type fial\n");
 				return;
 			}
 
-			if (pstrNetworkInfo != NULL) {
-				s32Freq = ieee80211_channel_to_frequency((s32)pstrNetworkInfo->u8channel, IEEE80211_BAND_2GHZ);
+			if (network_info) {
+				s32Freq = ieee80211_channel_to_frequency((s32)network_info->u8channel, IEEE80211_BAND_2GHZ);
 				channel = ieee80211_get_channel(wiphy, s32Freq);
 
 				if (!channel)
 					return;
 
 				PRINT_INFO(CFG80211_DBG, "Network Info:: CHANNEL Frequency: %d, RSSI: %d, CapabilityInfo: %d,"
-					   "BeaconPeriod: %d\n", channel->center_freq, (((s32)pstrNetworkInfo->s8rssi) * 100),
-					   pstrNetworkInfo->u16CapInfo, pstrNetworkInfo->u16BeaconPeriod);
-
-				if (pstrNetworkInfo->bNewNetwork) {
-					if (priv->u32RcvdChCount < MAX_NUM_SCANNED_NETWORKS) { /* TODO: mostafa: to be replaced by */
-						/*               max_scan_ssids */
-						PRINT_D(CFG80211_DBG, "Network %s found\n", pstrNetworkInfo->au8ssid);
-
+					   "BeaconPeriod: %d\n", channel->center_freq, (((s32)network_info->s8rssi) * 100),
+					   network_info->u16CapInfo, network_info->u16BeaconPeriod);
 
+				if (network_info->bNewNetwork) {
+					if (priv->u32RcvdChCount < MAX_NUM_SCANNED_NETWORKS) {
+						PRINT_D(CFG80211_DBG, "Network %s found\n", network_info->au8ssid);
 						priv->u32RcvdChCount++;
 
-
-
-						if (pJoinParams == NULL) {
+						if (!join_params)
 							PRINT_INFO(CORECONFIG_DBG, ">> Something really bad happened\n");
-						}
-						add_network_to_shadow(pstrNetworkInfo, priv, pJoinParams);
-
-						/*P2P peers are sent to WPA supplicant and added to shadow table*/
+						add_network_to_shadow(network_info, priv, join_params);
 
-						if (!(memcmp("DIRECT-", pstrNetworkInfo->au8ssid, 7))) {
-							bss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,  pstrNetworkInfo->au8bssid, pstrNetworkInfo->u64Tsf, pstrNetworkInfo->u16CapInfo,
-										  pstrNetworkInfo->u16BeaconPeriod, (const u8 *)pstrNetworkInfo->pu8IEs,
-										  (size_t)pstrNetworkInfo->u16IEsLen, (((s32)pstrNetworkInfo->s8rssi) * 100), GFP_KERNEL);
+						if (!(memcmp("DIRECT-", network_info->au8ssid, 7))) {
+							bss = cfg80211_inform_bss(wiphy, channel, CFG80211_BSS_FTYPE_UNKNOWN,  network_info->au8bssid, network_info->u64Tsf, network_info->u16CapInfo,
+										  network_info->u16BeaconPeriod, (const u8 *)network_info->pu8IEs,
+										  (size_t)network_info->u16IEsLen, (((s32)network_info->s8rssi) * 100), GFP_KERNEL);
 							cfg80211_put_bss(wiphy, bss);
 						}
 
@@ -419,19 +439,19 @@ static void CfgScanResult(enum scan_event enuScanEvent, tstrNetworkInfo *pstrNet
 					}
 				} else {
 					u32 i;
-					/* So this network is discovered before, we'll just update its RSSI */
+
 					for (i = 0; i < priv->u32RcvdChCount; i++) {
-						if (memcmp(astrLastScannedNtwrksShadow[i].au8bssid, pstrNetworkInfo->au8bssid, 6) == 0) {
-							PRINT_D(CFG80211_DBG, "Update RSSI of %s\n", astrLastScannedNtwrksShadow[i].au8ssid);
+						if (memcmp(last_scanned_shadow[i].au8bssid, network_info->au8bssid, 6) == 0) {
+							PRINT_D(CFG80211_DBG, "Update RSSI of %s\n", last_scanned_shadow[i].au8ssid);
 
-							astrLastScannedNtwrksShadow[i].s8rssi = pstrNetworkInfo->s8rssi;
-							astrLastScannedNtwrksShadow[i].u32TimeRcvdInScan = jiffies;
+							last_scanned_shadow[i].s8rssi = network_info->s8rssi;
+							last_scanned_shadow[i].u32TimeRcvdInScan = jiffies;
 							break;
 						}
 					}
 				}
 			}
-		} else if (enuScanEvent == SCAN_EVENT_DONE)    {
+		} else if (scan_event == SCAN_EVENT_DONE) {
 			PRINT_D(CFG80211_DBG, "Scan Done[%p]\n", priv->dev);
 			PRINT_D(CFG80211_DBG, "Refreshing Scan ...\n");
 			refresh_scan(priv, 1, false);
@@ -443,23 +463,19 @@ static void CfgScanResult(enum scan_event enuScanEvent, tstrNetworkInfo *pstrNet
 
 			down(&(priv->hSemScanReq));
 
-			if (priv->pstrScanReq != NULL) {
+			if (priv->pstrScanReq) {
 				cfg80211_scan_done(priv->pstrScanReq, false);
 				priv->u32RcvdChCount = 0;
 				priv->bCfgScanning = false;
 				priv->pstrScanReq = NULL;
 			}
 			up(&(priv->hSemScanReq));
-
-		}
-		/*Aborting any scan operation during mac close*/
-		else if (enuScanEvent == SCAN_EVENT_ABORTED) {
+		} else if (scan_event == SCAN_EVENT_ABORTED) {
 			down(&(priv->hSemScanReq));
 
 			PRINT_D(CFG80211_DBG, "Scan Aborted\n");
-			if (priv->pstrScanReq != NULL) {
-
-				update_scan_time(priv);
+			if (priv->pstrScanReq) {
+				update_scan_time();
 				refresh_scan(priv, 1, false);
 
 				cfg80211_scan_done(priv->pstrScanReq, false);
@@ -471,60 +487,7 @@ static void CfgScanResult(enum scan_event enuScanEvent, tstrNetworkInfo *pstrNet
 	}
 }
 
-
-/**
- *  @brief      WILC_WFI_Set_PMKSA
- *  @details  Check if pmksa is cached and set it.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-int WILC_WFI_Set_PMKSA(u8 *bssid, struct wilc_priv *priv)
-{
-	u32 i;
-	s32 s32Error = 0;
-
-
-	for (i = 0; i < priv->pmkid_list.numpmkid; i++)	{
-
-		if (!memcmp(bssid, priv->pmkid_list.pmkidlist[i].bssid,
-				 ETH_ALEN)) {
-			PRINT_D(CFG80211_DBG, "PMKID successful comparison");
-
-			/*If bssid is found, set the values*/
-			s32Error = host_int_set_pmkid_info(priv->hWILCWFIDrv, &priv->pmkid_list);
-
-			if (s32Error != 0)
-				PRINT_ER("Error in pmkid\n");
-
-			break;
-		}
-	}
-
-	return s32Error;
-
-
-}
-int linux_wlan_set_bssid(struct net_device *wilc_netdev, u8 *pBSSID);
-
-
-/**
- *  @brief      CfgConnectResult
- *  @details
- *  @param[in] tenuConnDisconnEvent enuConnDisconnEvent: Type of connection response either
- *                        connection response or disconnection notification.
- *                        tstrConnectInfo* pstrConnectInfo: COnnection information.
- *                        u8 u8MacStatus: Mac Status from firmware
- *                        tstrDisconnectNotifInfo* pstrDisconnectNotifInfo: Disconnection Notification
- *                        void* pUserVoid: Private data associated with wireless interface
- *  @return     NONE
- *  @author	mabubakr
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-int connecting;
+int wilc_connecting;
 
 static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 			     tstrConnectInfo *pstrConnectInfo,
@@ -537,18 +500,17 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 	struct host_if_drv *pstrWFIDrv;
 	u8 NullBssid[ETH_ALEN] = {0};
 	struct wilc *wl;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
-	connecting = 0;
+	wilc_connecting = 0;
 
 	priv = (struct wilc_priv *)pUserVoid;
 	dev = priv->dev;
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif->wilc;
 	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
 
 	if (enuConnDisconnEvent == CONN_DISCONN_EVENT_CONN_RESP) {
-		/*Initialization*/
 		u16 u16ConnectStatus;
 
 		u16ConnectStatus = pstrConnectInfo->u16ConnectStatus;
@@ -557,15 +519,12 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 
 		if ((u8MacStatus == MAC_DISCONNECTED) &&
 		    (pstrConnectInfo->u16ConnectStatus == SUCCESSFUL_STATUSCODE)) {
-			/* The case here is that our station was waiting for association response frame and has just received it containing status code
-			 *  = SUCCESSFUL_STATUSCODE, while mac status is MAC_DISCONNECTED (which means something wrong happened) */
 			u16ConnectStatus = WLAN_STATUS_UNSPECIFIED_FAILURE;
-			linux_wlan_set_bssid(priv->dev, NullBssid);
-			eth_zero_addr(u8ConnectedSSID);
+			wilc_wlan_set_bssid(priv->dev, NullBssid);
+			eth_zero_addr(wilc_connected_ssid);
 
-			/*Invalidate u8WLANChannel value on wlan0 disconnect*/
-			if (!pstrWFIDrv->u8P2PConnect)
-				u8WLANChannel = INVALID_CHANNEL;
+			if (!pstrWFIDrv->p2p_connect)
+				wlan_channel = INVALID_CHANNEL;
 
 			PRINT_ER("Unspecified failure: Connection status %d : MAC status = %d\n", u16ConnectStatus, u8MacStatus);
 		}
@@ -579,13 +538,13 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 			memcpy(priv->au8AssociatedBss, pstrConnectInfo->au8bssid, ETH_ALEN);
 
 
-			for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-				if (memcmp(astrLastScannedNtwrksShadow[i].au8bssid,
-						pstrConnectInfo->au8bssid, ETH_ALEN) == 0) {
+			for (i = 0; i < last_scanned_cnt; i++) {
+				if (memcmp(last_scanned_shadow[i].au8bssid,
+					   pstrConnectInfo->au8bssid, ETH_ALEN) == 0) {
 					unsigned long now = jiffies;
 
 					if (time_after(now,
-						       astrLastScannedNtwrksShadow[i].u32TimeRcvdInScanCached + (unsigned long)(nl80211_SCAN_RESULT_EXPIRE - (1 * HZ)))) {
+						       last_scanned_shadow[i].u32TimeRcvdInScanCached + (unsigned long)(nl80211_SCAN_RESULT_EXPIRE - (1 * HZ)))) {
 						bNeedScanRefresh = true;
 					}
 
@@ -593,12 +552,8 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 				}
 			}
 
-			if (bNeedScanRefresh) {
-				/*Also, refrsh DIRECT- results if */
+			if (bNeedScanRefresh)
 				refresh_scan(priv, 1, true);
-
-			}
-
 		}
 
 
@@ -609,68 +564,47 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent,
 		cfg80211_connect_result(dev, pstrConnectInfo->au8bssid,
 					pstrConnectInfo->pu8ReqIEs, pstrConnectInfo->ReqIEsLen,
 					pstrConnectInfo->pu8RespIEs, pstrConnectInfo->u16RespIEsLen,
-					u16ConnectStatus, GFP_KERNEL);                         /* TODO: mostafa: u16ConnectStatus to */
-		/* be replaced by pstrConnectInfo->u16ConnectStatus */
+					u16ConnectStatus, GFP_KERNEL);
 	} else if (enuConnDisconnEvent == CONN_DISCONN_EVENT_DISCONN_NOTIF)    {
-		g_obtainingIP = false;
+		wilc_optaining_ip = false;
 		PRINT_ER("Received MAC_DISCONNECTED from firmware with reason %d on dev [%p]\n",
 			 pstrDisconnectNotifInfo->u16reason, priv->dev);
-		u8P2Plocalrandom = 0x01;
-		u8P2Precvrandom = 0x00;
-		bWilc_ie = false;
+		p2p_local_random = 0x01;
+		p2p_recv_random = 0x00;
+		wilc_ie = false;
 		eth_zero_addr(priv->au8AssociatedBss);
-		linux_wlan_set_bssid(priv->dev, NullBssid);
-		eth_zero_addr(u8ConnectedSSID);
-
-		/*Invalidate u8WLANChannel value on wlan0 disconnect*/
-		if (!pstrWFIDrv->u8P2PConnect)
-			u8WLANChannel = INVALID_CHANNEL;
-		/*Incase "P2P CLIENT Connected" send deauthentication reason by 3 to force the WPA_SUPPLICANT to directly change
-		 *      virtual interface to station*/
-		if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1].ndev)) {
+		wilc_wlan_set_bssid(priv->dev, NullBssid);
+		eth_zero_addr(wilc_connected_ssid);
+
+		if (!pstrWFIDrv->p2p_connect)
+			wlan_channel = INVALID_CHANNEL;
+		if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) {
 			pstrDisconnectNotifInfo->u16reason = 3;
-		}
-		/*Incase "P2P CLIENT during connection(not connected)" send deauthentication reason by 1 to force the WPA_SUPPLICANT
-		 *      to scan again and retry the connection*/
-		else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1].ndev)) {
+		} else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) {
 			pstrDisconnectNotifInfo->u16reason = 1;
 		}
 		cfg80211_disconnected(dev, pstrDisconnectNotifInfo->u16reason, pstrDisconnectNotifInfo->ie,
 				      pstrDisconnectNotifInfo->ie_len, false,
 				      GFP_KERNEL);
-
 	}
-
 }
 
-
-/**
- *  @brief      set_channel
- *  @details    Set channel for a given wireless interface. Some devices
- *                      may support multi-channel operation (by channel hopping) so cfg80211
- *                      doesn't verify much. Note, however, that the passed netdev may be
- *                      %NULL as well if the user requested changing the channel for the
- *                      device itself, or for a monitor interface.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int set_channel(struct wiphy *wiphy,
 		       struct cfg80211_chan_def *chandef)
 {
 	u32 channelnum = 0;
 	struct wilc_priv *priv;
 	int result = 0;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	channelnum = ieee80211_frequency_to_channel(chandef->chan->center_freq);
 	PRINT_D(CFG80211_DBG, "Setting channel %d with frequency %d\n", channelnum, chandef->chan->center_freq);
 
 	curr_channel = channelnum;
-	result = host_int_set_mac_chnl_num(priv->hWILCWFIDrv, channelnum);
+	result = wilc_set_mac_chnl_num(vif, channelnum);
 
 	if (result != 0)
 		PRINT_ER("Error in setting channel %d\n", channelnum);
@@ -678,19 +612,6 @@ static int set_channel(struct wiphy *wiphy,
 	return result;
 }
 
-/**
- *  @brief      scan
- *  @details    Request to do a scan. If returning zero, the scan request is given
- *                      the driver, and will be valid until passed to cfg80211_scan_done().
- *                      For scan results, call cfg80211_inform_bss(); you can call this outside
- *                      the scan/scan_done bracket too.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mabubakr
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-
 static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 {
 	struct wilc_priv *priv;
@@ -698,21 +619,20 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 	s32 s32Error = 0;
 	u8 au8ScanChanList[MAX_NUM_SCANNED_NETWORKS];
 	struct hidden_network strHiddenNetwork;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	priv->pstrScanReq = request;
 
 	priv->u32RcvdChCount = 0;
 
-	host_int_set_wfi_drv_handler(priv->hWILCWFIDrv);
-
-
-	reset_shadow_found(priv);
+	wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif));
+	reset_shadow_found();
 
 	priv->bCfgScanning = true;
-	if (request->n_channels <= MAX_NUM_SCANNED_NETWORKS) { /* TODO: mostafa: to be replaced by */
-		/*               max_scan_ssids */
+	if (request->n_channels <= MAX_NUM_SCANNED_NETWORKS) {
 		for (i = 0; i < request->n_channels; i++) {
 			au8ScanChanList[i] = (u8)ieee80211_frequency_to_channel(request->channels[i]->center_freq);
 			PRINT_INFO(CFG80211_DBG, "ScanChannel List[%d] = %d,", i, au8ScanChanList[i]);
@@ -724,15 +644,13 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 		PRINT_D(CFG80211_DBG, "Number of SSIDs %d\n", request->n_ssids);
 
 		if (request->n_ssids >= 1) {
-
-
 			strHiddenNetwork.pstrHiddenNetworkInfo = kmalloc(request->n_ssids * sizeof(struct hidden_network), GFP_KERNEL);
 			strHiddenNetwork.u8ssidnum = request->n_ssids;
 
 
 			for (i = 0; i < request->n_ssids; i++) {
-
-				if (request->ssids[i].ssid != NULL && request->ssids[i].ssid_len != 0) {
+				if (request->ssids[i].ssid &&
+				    request->ssids[i].ssid_len != 0) {
 					strHiddenNetwork.pstrHiddenNetworkInfo[i].pu8ssid = kmalloc(request->ssids[i].ssid_len, GFP_KERNEL);
 					memcpy(strHiddenNetwork.pstrHiddenNetworkInfo[i].pu8ssid, request->ssids[i].ssid, request->ssids[i].ssid_len);
 					strHiddenNetwork.pstrHiddenNetworkInfo[i].u8ssidlen = request->ssids[i].ssid_len;
@@ -742,18 +660,21 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 				}
 			}
 			PRINT_D(CFG80211_DBG, "Trigger Scan Request\n");
-			s32Error = host_int_scan(priv->hWILCWFIDrv, USER_SCAN, ACTIVE_SCAN,
-						 au8ScanChanList, request->n_channels,
-						 (const u8 *)request->ie, request->ie_len,
-						 CfgScanResult, (void *)priv, &strHiddenNetwork);
+			s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN,
+					     au8ScanChanList,
+					     request->n_channels,
+					     (const u8 *)request->ie,
+					     request->ie_len, CfgScanResult,
+					     (void *)priv, &strHiddenNetwork);
 		} else {
 			PRINT_D(CFG80211_DBG, "Trigger Scan Request\n");
-			s32Error = host_int_scan(priv->hWILCWFIDrv, USER_SCAN, ACTIVE_SCAN,
-						 au8ScanChanList, request->n_channels,
-						 (const u8 *)request->ie, request->ie_len,
-						 CfgScanResult, (void *)priv, NULL);
+			s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN,
+					     au8ScanChanList,
+					     request->n_channels,
+					     (const u8 *)request->ie,
+					     request->ie_len, CfgScanResult,
+					     (void *)priv, NULL);
 		}
-
 	} else {
 		PRINT_ER("Requested num of scanned channels is greater than the max, supported"
 			 " channels\n");
@@ -767,18 +688,6 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 	return s32Error;
 }
 
-/**
- *  @brief      connect
- *  @details    Connect to the ESS with the specified parameters. When connected,
- *                      call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
- *                      If the connection fails for some reason, call cfg80211_connect_result()
- *                      with the status from the AP.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mabubakr
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int connect(struct wiphy *wiphy, struct net_device *dev,
 		   struct cfg80211_connect_params *sme)
 {
@@ -793,39 +702,37 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 	struct wilc_priv *priv;
 	struct host_if_drv *pstrWFIDrv;
 	tstrNetworkInfo *pstrNetworkInfo = NULL;
+	struct wilc_vif *vif;
 
-
-	connecting = 1;
+	wilc_connecting = 1;
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 	pstrWFIDrv = (struct host_if_drv *)(priv->hWILCWFIDrv);
 
-	host_int_set_wfi_drv_handler(priv->hWILCWFIDrv);
+	wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif));
 
 	PRINT_D(CFG80211_DBG, "Connecting to SSID [%s] on netdev [%p] host if [%p]\n", sme->ssid, dev, priv->hWILCWFIDrv);
 	if (!(strncmp(sme->ssid, "DIRECT-", 7))) {
 		PRINT_D(CFG80211_DBG, "Connected to Direct network,OBSS disabled\n");
-		pstrWFIDrv->u8P2PConnect = 1;
-	} else
-		pstrWFIDrv->u8P2PConnect = 0;
+		pstrWFIDrv->p2p_connect = 1;
+	} else {
+		pstrWFIDrv->p2p_connect = 0;
+	}
 	PRINT_INFO(CFG80211_DBG, "Required SSID = %s\n , AuthType = %d\n", sme->ssid, sme->auth_type);
 
-	for (i = 0; i < u32LastScannedNtwrksCountShadow; i++) {
-		if ((sme->ssid_len == astrLastScannedNtwrksShadow[i].u8SsidLen) &&
-		    memcmp(astrLastScannedNtwrksShadow[i].au8ssid,
-				sme->ssid,
-				sme->ssid_len) == 0) {
+	for (i = 0; i < last_scanned_cnt; i++) {
+		if ((sme->ssid_len == last_scanned_shadow[i].u8SsidLen) &&
+		    memcmp(last_scanned_shadow[i].au8ssid,
+			   sme->ssid,
+			   sme->ssid_len) == 0) {
 			PRINT_INFO(CFG80211_DBG, "Network with required SSID is found %s\n", sme->ssid);
-			if (sme->bssid == NULL)	{
-				/* BSSID is not passed from the user, so decision of matching
-				 * is done by SSID only */
+			if (!sme->bssid) {
 				PRINT_INFO(CFG80211_DBG, "BSSID is not passed from the user\n");
 				break;
 			} else {
-				/* BSSID is also passed from the user, so decision of matching
-				 * should consider also this passed BSSID */
-				if (memcmp(astrLastScannedNtwrksShadow[i].au8bssid,
-						sme->bssid,
-						ETH_ALEN) == 0)	{
+				if (memcmp(last_scanned_shadow[i].au8bssid,
+					   sme->bssid,
+					   ETH_ALEN) == 0) {
 					PRINT_INFO(CFG80211_DBG, "BSSID is passed from the user and matched\n");
 					break;
 				}
@@ -833,10 +740,10 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 		}
 	}
 
-	if (i < u32LastScannedNtwrksCountShadow) {
+	if (i < last_scanned_cnt) {
 		PRINT_D(CFG80211_DBG, "Required bss is in scan results\n");
 
-		pstrNetworkInfo = &(astrLastScannedNtwrksShadow[i]);
+		pstrNetworkInfo = &last_scanned_shadow[i];
 
 		PRINT_INFO(CFG80211_DBG, "network BSSID to be associated: %x%x%x%x%x%x\n",
 			   pstrNetworkInfo->au8bssid[0], pstrNetworkInfo->au8bssid[1],
@@ -844,7 +751,7 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			   pstrNetworkInfo->au8bssid[4], pstrNetworkInfo->au8bssid[5]);
 	} else {
 		s32Error = -ENOENT;
-		if (u32LastScannedNtwrksCountShadow == 0)
+		if (last_scanned_cnt == 0)
 			PRINT_D(CFG80211_DBG, "No Scan results yet\n");
 		else
 			PRINT_D(CFG80211_DBG, "Required bss not in scan results: Error(%d)\n", s32Error);
@@ -867,8 +774,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	if (sme->crypto.cipher_group != NO_ENCRYPT) {
-		/* To determine the u8security value, first we check the group cipher suite then {in case of WPA or WPA2}
-		 *  we will add to it the pairwise cipher suite(s) */
 		pcwpa_version = "Default";
 		PRINT_D(CORECONFIG_DBG, ">> sme->crypto.wpa_versions: %x\n", sme->crypto.wpa_versions);
 		if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP40) {
@@ -891,8 +796,9 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			g_key_wep_params.key_idx = sme->key_idx;
 			g_wep_keys_saved = true;
 
-			host_int_set_wep_default_key(priv->hWILCWFIDrv, sme->key_idx);
-			host_int_add_wep_key_bss_sta(priv->hWILCWFIDrv, sme->key, sme->key_len, sme->key_idx);
+			wilc_set_wep_default_keyid(vif, sme->key_idx);
+			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
+						 sme->key_idx);
 		} else if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_WEP104)   {
 			u8security = ENCRYPT_ENABLED | WEP | WEP_EXTENDED;
 			pcgroup_encrypt_val = "WEP104";
@@ -908,15 +814,15 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 			g_key_wep_params.key_idx = sme->key_idx;
 			g_wep_keys_saved = true;
 
-			host_int_set_wep_default_key(priv->hWILCWFIDrv, sme->key_idx);
-			host_int_add_wep_key_bss_sta(priv->hWILCWFIDrv, sme->key, sme->key_len, sme->key_idx);
+			wilc_set_wep_default_keyid(vif, sme->key_idx);
+			wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len,
+						 sme->key_idx);
 		} else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)   {
 			if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_TKIP)	{
 				u8security = ENCRYPT_ENABLED | WPA2 | TKIP;
 				pcgroup_encrypt_val = "WPA2_TKIP";
 				pccipher_group = "TKIP";
-			} else {     /* TODO: mostafa: here we assume that any other encryption type is AES */
-				     /* tenuSecurity_t = WPA2_AES; */
+			} else {
 				u8security = ENCRYPT_ENABLED | WPA2 | AES;
 				pcgroup_encrypt_val = "WPA2_AES";
 				pccipher_group = "AES";
@@ -927,12 +833,10 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 				u8security = ENCRYPT_ENABLED | WPA | TKIP;
 				pcgroup_encrypt_val = "WPA_TKIP";
 				pccipher_group = "TKIP";
-			} else {     /* TODO: mostafa: here we assume that any other encryption type is AES */
-				     /* tenuSecurity_t = WPA_AES; */
+			} else {
 				u8security = ENCRYPT_ENABLED | WPA | AES;
 				pcgroup_encrypt_val = "WPA_AES";
 				pccipher_group = "AES";
-
 			}
 			pcwpa_version = "WPA_VERSION_1";
 
@@ -942,17 +846,14 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 
 			goto done;
 		}
-
 	}
 
-	/* After we set the u8security value from checking the group cipher suite, {in case of WPA or WPA2} we will
-	 *   add to it the pairwise cipher suite(s) */
 	if ((sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
 	    || (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)) {
 		for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) {
 			if (sme->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP) {
 				u8security = u8security | TKIP;
-			} else {     /* TODO: mostafa: here we assume that any other encryption type is AES */
+			} else {
 				u8security = u8security | AES;
 			}
 		}
@@ -976,8 +877,6 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 		PRINT_D(CFG80211_DBG, "Automatic Authentation type = %d\n", sme->auth_type);
 	}
 
-
-	/* ai: key_mgmt: enterprise case */
 	if (sme->crypto.n_akm_suites) {
 		switch (sme->crypto.akm_suites[0]) {
 		case WLAN_AKM_SUITE_8021X:
@@ -997,19 +896,19 @@ static int connect(struct wiphy *wiphy, struct net_device *dev,
 
 	curr_channel = pstrNetworkInfo->u8channel;
 
-	if (!pstrWFIDrv->u8P2PConnect) {
-		u8WLANChannel = pstrNetworkInfo->u8channel;
-	}
+	if (!pstrWFIDrv->p2p_connect)
+		wlan_channel = pstrNetworkInfo->u8channel;
 
-	linux_wlan_set_bssid(dev, pstrNetworkInfo->au8bssid);
+	wilc_wlan_set_bssid(dev, pstrNetworkInfo->au8bssid);
 
-	s32Error = host_int_set_join_req(priv->hWILCWFIDrv, pstrNetworkInfo->au8bssid, sme->ssid,
-					 sme->ssid_len, sme->ie, sme->ie_len,
-					 CfgConnectResult, (void *)priv, u8security,
-					 tenuAuth_type, pstrNetworkInfo->u8channel,
-					 pstrNetworkInfo->pJoinParams);
+	s32Error = wilc_set_join_req(vif, pstrNetworkInfo->au8bssid, sme->ssid,
+				     sme->ssid_len, sme->ie, sme->ie_len,
+				     CfgConnectResult, (void *)priv,
+				     u8security, tenuAuth_type,
+				     pstrNetworkInfo->u8channel,
+				     pstrNetworkInfo->pJoinParams);
 	if (s32Error != 0) {
-		PRINT_ER("host_int_set_join_req(): Error(%d)\n", s32Error);
+		PRINT_ER("wilc_set_join_req(): Error(%d)\n", s32Error);
 		s32Error = -ENOENT;
 		goto done;
 	}
@@ -1019,40 +918,31 @@ done:
 	return s32Error;
 }
 
-
-/**
- *  @brief      disconnect
- *  @details    Disconnect from the BSS/ESS.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_code)
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
 	struct host_if_drv *pstrWFIDrv;
+	struct wilc_vif *vif;
 	u8 NullBssid[ETH_ALEN] = {0};
 
-	connecting = 0;
+	wilc_connecting = 0;
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
-	/*Invalidate u8WLANChannel value on wlan0 disconnect*/
 	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
-	if (!pstrWFIDrv->u8P2PConnect)
-		u8WLANChannel = INVALID_CHANNEL;
-	linux_wlan_set_bssid(priv->dev, NullBssid);
+	if (!pstrWFIDrv->p2p_connect)
+		wlan_channel = INVALID_CHANNEL;
+	wilc_wlan_set_bssid(priv->dev, NullBssid);
 
 	PRINT_D(CFG80211_DBG, "Disconnecting with reason code(%d)\n", reason_code);
 
-	u8P2Plocalrandom = 0x01;
-	u8P2Precvrandom = 0x00;
-	bWilc_ie = false;
-	pstrWFIDrv->u64P2p_MgmtTimeout = 0;
+	p2p_local_random = 0x01;
+	p2p_recv_random = 0x00;
+	wilc_ie = false;
+	pstrWFIDrv->p2p_timeout = 0;
 
-	s32Error = host_int_disconnect(priv->hWILCWFIDrv, reason_code);
+	s32Error = wilc_disconnect(vif, reason_code);
 	if (s32Error != 0) {
 		PRINT_ER("Error in disconnecting: Error(%d)\n", s32Error);
 		s32Error = -EINVAL;
@@ -1061,16 +951,6 @@ static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_co
 	return s32Error;
 }
 
-/**
- *  @brief      add_key
- *  @details    Add a key with the given parameters. @mac_addr will be %NULL
- *                      when adding a group key.
- *  @param[in] key : key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key, 8-byte Rx Mic Key
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 		   bool pairwise,
 		   const u8 *mac_addr, struct key_params *params)
@@ -1086,11 +966,11 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	u8 u8pmode = NO_ENCRYPT;
 	enum AUTHTYPE tenuAuth_type = ANY;
 	struct wilc *wl;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(netdev);
-	wl = nic->wilc;
+	vif = netdev_priv(netdev);
+	wl = vif->wilc;
 
 	PRINT_D(CFG80211_DBG, "Adding key with cipher suite = %x\n", params->cipher);
 
@@ -1105,7 +985,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
 		if (priv->wdev->iftype == NL80211_IFTYPE_AP) {
-
 			priv->WILC_WFI_wep_default = key_index;
 			priv->WILC_WFI_wep_key_len[key_index] = params->key_len;
 			memcpy(priv->WILC_WFI_wep_key[key_index], params->key, params->key_len);
@@ -1123,7 +1002,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 			else
 				u8mode = ENCRYPT_ENABLED | WEP | WEP_EXTENDED;
 
-			host_int_add_wep_key_bss_ap(priv->hWILCWFIDrv, params->key, params->key_len, key_index, u8mode, tenuAuth_type);
+			wilc_add_wep_key_bss_ap(vif, params->key,
+						params->key_len, key_index,
+						u8mode, tenuAuth_type);
 			break;
 		}
 		if (memcmp(params->key, priv->WILC_WFI_wep_key[key_index], params->key_len)) {
@@ -1137,7 +1018,8 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				for (i = 0; i < params->key_len; i++)
 					PRINT_INFO(CFG80211_DBG, "WEP key value[%d] = %d\n", i, params->key[i]);
 			}
-			host_int_add_wep_key_bss_sta(priv->hWILCWFIDrv, params->key, params->key_len, key_index);
+			wilc_add_wep_key_bss_sta(vif, params->key,
+						 params->key_len, key_index);
 		}
 
 		break;
@@ -1145,14 +1027,12 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	case WLAN_CIPHER_SUITE_TKIP:
 	case WLAN_CIPHER_SUITE_CCMP:
 		if (priv->wdev->iftype == NL80211_IFTYPE_AP || priv->wdev->iftype == NL80211_IFTYPE_P2P_GO) {
-
-			if (priv->wilc_gtk[key_index] == NULL) {
+			if (!priv->wilc_gtk[key_index]) {
 				priv->wilc_gtk[key_index] = kmalloc(sizeof(struct wilc_wfi_key), GFP_KERNEL);
 				priv->wilc_gtk[key_index]->key = NULL;
 				priv->wilc_gtk[key_index]->seq = NULL;
-
 			}
-			if (priv->wilc_ptk[key_index] == NULL) {
+			if (!priv->wilc_ptk[key_index]) {
 				priv->wilc_ptk[key_index] = kmalloc(sizeof(struct wilc_wfi_key), GFP_KERNEL);
 				priv->wilc_ptk[key_index]->key = NULL;
 				priv->wilc_ptk[key_index]->seq = NULL;
@@ -1169,18 +1049,14 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				priv->wilc_groupkey = u8gmode;
 
 				if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) {
-
 					pu8TxMic = params->key + 24;
 					pu8RxMic = params->key + 16;
 					KeyLen = params->key_len - 16;
 				}
-				/* if there has been previous allocation for the same index through its key, free that memory and allocate again*/
 				kfree(priv->wilc_gtk[key_index]->key);
 
 				priv->wilc_gtk[key_index]->key = kmalloc(params->key_len, GFP_KERNEL);
 				memcpy(priv->wilc_gtk[key_index]->key, params->key, params->key_len);
-
-				/* if there has been previous allocation for the same index through its seq, free that memory and allocate again*/
 				kfree(priv->wilc_gtk[key_index]->seq);
 
 				if ((params->seq_len) > 0) {
@@ -1200,8 +1076,10 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				}
 
 
-				host_int_add_rx_gtk(priv->hWILCWFIDrv, params->key, KeyLen,
-						    key_index, params->seq_len, params->seq, pu8RxMic, pu8TxMic, AP_MODE, u8gmode);
+				wilc_add_rx_gtk(vif, params->key, KeyLen,
+						key_index, params->seq_len,
+						params->seq, pu8RxMic,
+						pu8TxMic, AP_MODE, u8gmode);
 
 			} else {
 				PRINT_INFO(CFG80211_DBG, "STA Address: %x%x%x%x%x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4]);
@@ -1213,7 +1091,6 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 
 
 				if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) {
-
 					pu8TxMic = params->key + 24;
 					pu8RxMic = params->key + 16;
 					KeyLen = params->key_len - 16;
@@ -1245,8 +1122,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 				priv->wilc_ptk[key_index]->key_len = params->key_len;
 				priv->wilc_ptk[key_index]->seq_len = params->seq_len;
 
-				host_int_add_ptk(priv->hWILCWFIDrv, params->key, KeyLen, mac_addr,
-						 pu8RxMic, pu8TxMic, AP_MODE, u8pmode, key_index);
+				wilc_add_ptk(vif, params->key, KeyLen,
+					     mac_addr, pu8RxMic, pu8TxMic,
+					     AP_MODE, u8pmode, key_index);
 			}
 			break;
 		}
@@ -1255,14 +1133,12 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 			u8mode = 0;
 			if (!pairwise) {
 				if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) {
-					/* swap the tx mic by rx mic */
 					pu8RxMic = params->key + 24;
 					pu8TxMic = params->key + 16;
 					KeyLen = params->key_len - 16;
 				}
 
-				/*save keys only on interface 0 (wifi interface)*/
-				if (!g_gtk_keys_saved && netdev == wl->vif[0].ndev) {
+				if (!g_gtk_keys_saved && netdev == wl->vif[0]->ndev) {
 					g_add_gtk_key_params.key_idx = key_index;
 					g_add_gtk_key_params.pairwise = pairwise;
 					if (!mac_addr) {
@@ -1287,18 +1163,19 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 					g_gtk_keys_saved = true;
 				}
 
-				host_int_add_rx_gtk(priv->hWILCWFIDrv, params->key, KeyLen,
-						    key_index, params->seq_len, params->seq, pu8RxMic, pu8TxMic, STATION_MODE, u8mode);
+				wilc_add_rx_gtk(vif, params->key, KeyLen,
+						key_index, params->seq_len,
+						params->seq, pu8RxMic,
+						pu8TxMic, STATION_MODE,
+						u8mode);
 			} else {
 				if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) {
-					/* swap the tx mic by rx mic */
 					pu8RxMic = params->key + 24;
 					pu8TxMic = params->key + 16;
 					KeyLen = params->key_len - 16;
 				}
 
-				/*save keys only on interface 0 (wifi interface)*/
-				if (!g_ptk_keys_saved && netdev == wl->vif[0].ndev) {
+				if (!g_ptk_keys_saved && netdev == wl->vif[0]->ndev) {
 					g_add_ptk_key_params.key_idx = key_index;
 					g_add_ptk_key_params.pairwise = pairwise;
 					if (!mac_addr) {
@@ -1323,8 +1200,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 					g_ptk_keys_saved = true;
 				}
 
-				host_int_add_ptk(priv->hWILCWFIDrv, params->key, KeyLen, mac_addr,
-						 pu8RxMic, pu8TxMic, STATION_MODE, u8mode, key_index);
+				wilc_add_ptk(vif, params->key, KeyLen,
+					     mac_addr, pu8RxMic, pu8TxMic,
+					     STATION_MODE, u8mode, key_index);
 				PRINT_D(CFG80211_DBG, "Adding pairwise key\n");
 				if (INFO) {
 					for (i = 0; i < params->key_len; i++)
@@ -1337,22 +1215,11 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 	default:
 		PRINT_ER("Not supported cipher: Error(%d)\n", s32Error);
 		s32Error = -ENOTSUPP;
-
 	}
 
 	return s32Error;
 }
 
-/**
- *  @brief      del_key
- *  @details    Remove a key given the @mac_addr (%NULL for a group key)
- *                      and @key_index, return -ENOENT if the key doesn't exist.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 		   u8 key_index,
 		   bool pairwise,
@@ -1360,26 +1227,21 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 {
 	struct wilc_priv *priv;
 	struct wilc *wl;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(netdev);
-	wl = nic->wilc;
+	vif = netdev_priv(netdev);
+	wl = vif->wilc;
 
-	/*delete saved keys, if any*/
-	if (netdev == wl->vif[0].ndev) {
+	if (netdev == wl->vif[0]->ndev) {
 		g_ptk_keys_saved = false;
 		g_gtk_keys_saved = false;
 		g_wep_keys_saved = false;
 
-		/*Delete saved WEP keys params, if any*/
 		kfree(g_key_wep_params.key);
 		g_key_wep_params.key = NULL;
 
-		/*freeing memory allocated by "wilc_gtk" and "wilc_ptk" in "WILC_WIFI_ADD_KEY"*/
-
 		if ((priv->wilc_gtk[key_index]) != NULL) {
-
 			kfree(priv->wilc_gtk[key_index]->key);
 			priv->wilc_gtk[key_index]->key = NULL;
 			kfree(priv->wilc_gtk[key_index]->seq);
@@ -1387,11 +1249,9 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 
 			kfree(priv->wilc_gtk[key_index]);
 			priv->wilc_gtk[key_index] = NULL;
-
 		}
 
 		if ((priv->wilc_ptk[key_index]) != NULL) {
-
 			kfree(priv->wilc_ptk[key_index]->key);
 			priv->wilc_ptk[key_index]->key = NULL;
 			kfree(priv->wilc_ptk[key_index]->seq);
@@ -1400,7 +1260,6 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 			priv->wilc_ptk[key_index] = NULL;
 		}
 
-		/*Delete saved PTK and GTK keys params, if any*/
 		kfree(g_key_ptk_params.key);
 		g_key_ptk_params.key = NULL;
 		kfree(g_key_ptk_params.seq);
@@ -1411,8 +1270,7 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 		kfree(g_key_gtk_params.seq);
 		g_key_gtk_params.seq = NULL;
 
-		/*Reset WILC_CHANGING_VIR_IF register to allow adding futrue keys to CE H/W*/
-		Set_machw_change_vir_if(netdev, false);
+		wilc_set_machw_change_vir_if(netdev, false);
 	}
 
 	if (key_index >= 0 && key_index <= 3) {
@@ -1420,28 +1278,15 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 		priv->WILC_WFI_wep_key_len[key_index] = 0;
 
 		PRINT_D(CFG80211_DBG, "Removing WEP key with index = %d\n", key_index);
-		host_int_remove_wep_key(priv->hWILCWFIDrv, key_index);
+		wilc_remove_wep_key(vif, key_index);
 	} else {
 		PRINT_D(CFG80211_DBG, "Removing all installed keys\n");
-		host_int_remove_key(priv->hWILCWFIDrv, mac_addr);
+		wilc_remove_key(priv->hWILCWFIDrv, mac_addr);
 	}
 
 	return 0;
 }
 
-/**
- *  @brief      get_key
- *  @details    Get information about the key with the given parameters.
- *                      @mac_addr will be %NULL when requesting information for a group
- *                      key. All pointers given to the @callback function need not be valid
- *                      after it returns. This function should return an error if it is
- *                      not possible to retrieve the key, -ENOENT if it doesn't exist.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 		   bool pairwise,
 		   const u8 *mac_addr, void *cookie, void (*callback)(void *cookie, struct key_params *))
@@ -1477,69 +1322,48 @@ static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 
 	callback(cookie, &key_params);
 
-	return 0;        /* priv->wilc_gtk->key_len ?0 : -ENOENT; */
+	return 0;
 }
 
-/**
- *  @brief      set_default_key
- *  @details    Set the default management frame key on an interface
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int set_default_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index,
 			   bool unicast, bool multicast)
 {
 	struct wilc_priv *priv;
-
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	PRINT_D(CFG80211_DBG, "Setting default key with idx = %d\n", key_index);
 
 	if (key_index != priv->WILC_WFI_wep_default) {
-
-		host_int_set_wep_default_key(priv->hWILCWFIDrv, key_index);
+		wilc_set_wep_default_keyid(vif, key_index);
 	}
 
 	return 0;
 }
 
-/**
- *  @brief      get_station
- *  @details    Get station information for the station identified by @mac
- *  @param[in]   NONE
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-
 static int get_station(struct wiphy *wiphy, struct net_device *dev,
 		       const u8 *mac, struct station_info *sinfo)
 {
 	struct wilc_priv *priv;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	u32 i = 0;
 	u32 associatedsta = 0;
 	u32 inactive_time = 0;
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(dev);
+	vif = netdev_priv(dev);
 
-	if (nic->iftype == AP_MODE || nic->iftype == GO_MODE) {
+	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
 		PRINT_D(HOSTAPD_DBG, "Getting station parameters\n");
 
 		PRINT_INFO(HOSTAPD_DBG, ": %x%x%x%x%x\n", mac[0], mac[1], mac[2], mac[3], mac[4]);
 
 		for (i = 0; i < NUM_STA_ASSOCIATED; i++) {
-
 			if (!(memcmp(mac, priv->assoc_stainfo.au8Sta_AssociatedBss[i], ETH_ALEN))) {
 				associatedsta = i;
 				break;
 			}
-
 		}
 
 		if (associatedsta == -1) {
@@ -1549,16 +1373,15 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 
 		sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME);
 
-		host_int_get_inactive_time(priv->hWILCWFIDrv, mac, &(inactive_time));
+		wilc_get_inactive_time(vif, mac, &inactive_time);
 		sinfo->inactive_time = 1000 * inactive_time;
 		PRINT_D(CFG80211_DBG, "Inactive time %d\n", sinfo->inactive_time);
-
 	}
 
-	if (nic->iftype == STATION_MODE) {
+	if (vif->iftype == STATION_MODE) {
 		struct rf_info strStatistics;
 
-		host_int_get_statistics(priv->hWILCWFIDrv, &strStatistics);
+		wilc_get_statistics(vif, &strStatistics);
 
 		sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL) |
 						BIT(NL80211_STA_INFO_RX_PACKETS) |
@@ -1566,16 +1389,17 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 						BIT(NL80211_STA_INFO_TX_FAILED) |
 						BIT(NL80211_STA_INFO_TX_BITRATE);
 
-		sinfo->signal		=  strStatistics.s8RSSI;
-		sinfo->rx_packets   =  strStatistics.u32RxCount;
-		sinfo->tx_packets   =  strStatistics.u32TxCount + strStatistics.u32TxFailureCount;
-		sinfo->tx_failed	=  strStatistics.u32TxFailureCount;
-		sinfo->txrate.legacy = strStatistics.u8LinkSpeed * 10;
+		sinfo->signal = strStatistics.rssi;
+		sinfo->rx_packets = strStatistics.rx_cnt;
+		sinfo->tx_packets = strStatistics.tx_cnt + strStatistics.tx_fail_cnt;
+		sinfo->tx_failed = strStatistics.tx_fail_cnt;
+		sinfo->txrate.legacy = strStatistics.link_speed * 10;
 
-		if ((strStatistics.u8LinkSpeed > TCP_ACK_FILTER_LINK_SPEED_THRESH) && (strStatistics.u8LinkSpeed != DEFAULT_LINK_SPEED))
-			Enable_TCP_ACK_Filter(true);
-		else if (strStatistics.u8LinkSpeed != DEFAULT_LINK_SPEED)
-			Enable_TCP_ACK_Filter(false);
+		if ((strStatistics.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH) &&
+		    (strStatistics.link_speed != DEFAULT_LINK_SPEED))
+			wilc_enable_tcp_ack_filter(true);
+		else if (strStatistics.link_speed != DEFAULT_LINK_SPEED)
+			wilc_enable_tcp_ack_filter(false);
 
 		PRINT_D(CORECONFIG_DBG, "*** stats[%d][%d][%d][%d][%d]\n", sinfo->signal, sinfo->rx_packets, sinfo->tx_packets,
 			sinfo->tx_failed, sinfo->txrate.legacy);
@@ -1583,28 +1407,6 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
-
-/**
- *  @brief      change_bss
- *  @details    Modify parameters for a given BSS.
- *  @param[in]
- *   -use_cts_prot: Whether to use CTS protection
- *	    (0 = no, 1 = yes, -1 = do not change)
- *  -use_short_preamble: Whether the use of short preambles is allowed
- *	    (0 = no, 1 = yes, -1 = do not change)
- *  -use_short_slot_time: Whether the use of short slot time is allowed
- *	    (0 = no, 1 = yes, -1 = do not change)
- *  -basic_rates: basic rates in IEEE 802.11 format
- *	    (or NULL for no change)
- *  -basic_rates_len: number of basic rates
- *  -ap_isolate: do not forward packets between connected stations
- *  -ht_opmode: HT Operation mode
- *         (u16 = opmode, -1 = do not change)
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int change_bss(struct wiphy *wiphy, struct net_device *dev,
 		      struct bss_parameters *params)
 {
@@ -1612,23 +1414,15 @@ static int change_bss(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
-/**
- *  @brief      set_wiphy_params
- *  @details    Notify that wiphy parameters have changed;
- *  @param[in]   Changed bitfield (see &enum wiphy_params_flags) describes which values
- *                      have changed.
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 {
 	s32 s32Error = 0;
 	struct cfg_param_val pstrCfgParamVal;
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	pstrCfgParamVal.flag = 0;
 	PRINT_D(CFG80211_DBG, "Setting Wiphy params\n");
@@ -1640,17 +1434,14 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 		pstrCfgParamVal.short_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_short;
 	}
 	if (changed & WIPHY_PARAM_RETRY_LONG) {
-
 		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_RETRY_LONG %d\n", priv->dev->ieee80211_ptr->wiphy->retry_long);
 		pstrCfgParamVal.flag |= RETRY_LONG;
 		pstrCfgParamVal.long_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_long;
-
 	}
 	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 		PRINT_D(CFG80211_DBG, "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", priv->dev->ieee80211_ptr->wiphy->frag_threshold);
 		pstrCfgParamVal.flag |= FRAG_THRESHOLD;
 		pstrCfgParamVal.frag_threshold = priv->dev->ieee80211_ptr->wiphy->frag_threshold;
-
 	}
 
 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
@@ -1658,11 +1449,10 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 
 		pstrCfgParamVal.flag |= RTS_THRESHOLD;
 		pstrCfgParamVal.rts_threshold = priv->dev->ieee80211_ptr->wiphy->rts_threshold;
-
 	}
 
 	PRINT_D(CFG80211_DBG, "Setting CFG params in the host interface\n");
-	s32Error = hif_set_cfg(priv->hWILCWFIDrv, &pstrCfgParamVal);
+	s32Error = wilc_hif_set_cfg(vif, &pstrCfgParamVal);
 	if (s32Error)
 		PRINT_ER("Error in setting WIPHY PARAMS\n");
 
@@ -1670,33 +1460,22 @@ static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	return s32Error;
 }
 
-/**
- *  @brief      set_pmksa
- *  @details    Cache a PMKID for a BSSID. This is mostly useful for fullmac
- *                      devices running firmwares capable of generating the (re) association
- *                      RSN IE. It allows for faster roaming between WPA2 BSSIDs.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 		     struct cfg80211_pmksa *pmksa)
 {
 	u32 i;
 	s32 s32Error = 0;
 	u8 flag = 0;
-
+	struct wilc_vif *vif;
 	struct wilc_priv *priv = wiphy_priv(wiphy);
 
+	vif = netdev_priv(priv->dev);
 	PRINT_D(CFG80211_DBG, "Setting PMKSA\n");
 
 
 	for (i = 0; i < priv->pmkid_list.numpmkid; i++)	{
 		if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid,
 				 ETH_ALEN)) {
-			/*If bssid already exists and pmkid value needs to reset*/
 			flag = PMKID_FOUND;
 			PRINT_D(CFG80211_DBG, "PMKID already exists\n");
 			break;
@@ -1717,24 +1496,14 @@ static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 
 	if (!s32Error) {
 		PRINT_D(CFG80211_DBG, "Setting pmkid in the host interface\n");
-		s32Error = host_int_set_pmkid_info(priv->hWILCWFIDrv, &priv->pmkid_list);
+		s32Error = wilc_set_pmkid_info(vif, &priv->pmkid_list);
 	}
 	return s32Error;
 }
 
-/**
- *  @brief      del_pmksa
- *  @details    Delete a cached PMKID.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 		     struct cfg80211_pmksa *pmksa)
 {
-
 	u32 i;
 	s32 s32Error = 0;
 
@@ -1745,7 +1514,6 @@ static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 	for (i = 0; i < priv->pmkid_list.numpmkid; i++)	{
 		if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid,
 				 ETH_ALEN)) {
-			/*If bssid is found, reset the values*/
 			PRINT_D(CFG80211_DBG, "Reseting PMKID values\n");
 			memset(&priv->pmkid_list.pmkidlist[i], 0, sizeof(struct host_if_pmkid));
 			break;
@@ -1769,43 +1537,18 @@ static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
 	return s32Error;
 }
 
-/**
- *  @brief      flush_pmksa
- *  @details    Flush all cached PMKIDs.
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
 {
 	struct wilc_priv *priv = wiphy_priv(wiphy);
 
 	PRINT_D(CFG80211_DBG,  "Flushing  PMKID key values\n");
 
-	/*Get cashed Pmkids and set all with zeros*/
 	memset(&priv->pmkid_list, 0, sizeof(struct host_if_pmkid_attr));
 
 	return 0;
 }
 
-
-/**
- *  @brief      WILC_WFI_CfgParseRxAction
- *  @details Function parses the received  frames and modifies the following attributes:
- *                -GO Intent
- *		    -Channel list
- *		    -Operating Channel
- *
- *  @param[in] u8* Buffer, u32 length
- *  @return     NONE.
- *  @author	mdaftedar
- *  @date	12 DEC 2012
- *  @version
- */
-
-void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len)
+static void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len)
 {
 	u32 index = 0;
 	u32 i = 0, j = 0;
@@ -1822,42 +1565,30 @@ void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len)
 			channel_list_attr_index = index;
 		else if (buf[index] ==  OPERCHAN_ATTR_ID)
 			op_channel_attr_index = index;
-		index += buf[index + 1] + 3; /* ID,Length byte */
+		index += buf[index + 1] + 3;
 	}
-	if (u8WLANChannel != INVALID_CHANNEL) {
-
-		/*Modify channel list attribute*/
+	if (wlan_channel != INVALID_CHANNEL) {
 		if (channel_list_attr_index) {
 			PRINT_D(GENERIC_DBG, "Modify channel list attribute\n");
 			for (i = channel_list_attr_index + 3; i < ((channel_list_attr_index + 3) + buf[channel_list_attr_index + 1]); i++) {
 				if (buf[i] == 0x51) {
 					for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) {
-						buf[j] = u8WLANChannel;
+						buf[j] = wlan_channel;
 					}
 					break;
 				}
 			}
 		}
-		/*Modify operating channel attribute*/
+
 		if (op_channel_attr_index) {
 			PRINT_D(GENERIC_DBG, "Modify operating channel attribute\n");
 			buf[op_channel_attr_index + 6] = 0x51;
-			buf[op_channel_attr_index + 7] = u8WLANChannel;
+			buf[op_channel_attr_index + 7] = wlan_channel;
 		}
 	}
 }
 
-/**
- *  @brief      WILC_WFI_CfgParseTxAction
- *  @details Function parses the transmitted  action frames and modifies the
- *               GO Intent attribute
- *  @param[in] u8* Buffer, u32 length, bool bOperChan, u8 iftype
- *  @return     NONE.
- *  @author	mdaftedar
- *  @date	12 DEC 2012
- *  @version
- */
-void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftype)
+static void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftype)
 {
 	u32 index = 0;
 	u32 i = 0, j = 0;
@@ -1876,44 +1607,31 @@ void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftype)
 			channel_list_attr_index = index;
 		else if (buf[index] ==  OPERCHAN_ATTR_ID)
 			op_channel_attr_index = index;
-		index += buf[index + 1] + 3; /* ID,Length byte */
+		index += buf[index + 1] + 3;
 	}
-	if (u8WLANChannel != INVALID_CHANNEL && bOperChan) {
-
-		/*Modify channel list attribute*/
+	if (wlan_channel != INVALID_CHANNEL && bOperChan) {
 		if (channel_list_attr_index) {
 			PRINT_D(GENERIC_DBG, "Modify channel list attribute\n");
 			for (i = channel_list_attr_index + 3; i < ((channel_list_attr_index + 3) + buf[channel_list_attr_index + 1]); i++) {
 				if (buf[i] == 0x51) {
 					for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) {
-						buf[j] = u8WLANChannel;
+						buf[j] = wlan_channel;
 					}
 					break;
 				}
 			}
 		}
-		/*Modify operating channel attribute*/
+
 		if (op_channel_attr_index) {
 			PRINT_D(GENERIC_DBG, "Modify operating channel attribute\n");
 			buf[op_channel_attr_index + 6] = 0x51;
-			buf[op_channel_attr_index + 7] = u8WLANChannel;
+			buf[op_channel_attr_index + 7] = wlan_channel;
 		}
 	}
 }
 
-/*  @brief                       WILC_WFI_p2p_rx
- *  @details
- *  @param[in]
- *
- *  @return             None
- *  @author		Mai Daftedar
- *  @date			2 JUN 2013
- *  @version		1.0
- */
-
 void WILC_WFI_p2p_rx (struct net_device *dev, u8 *buff, u32 size)
 {
-
 	struct wilc_priv *priv;
 	u32 header, pkt_offset;
 	struct host_if_drv *pstrWFIDrv;
@@ -1923,11 +1641,8 @@ void WILC_WFI_p2p_rx (struct net_device *dev, u8 *buff, u32 size)
 	priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
 	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
 
-	/* Get WILC header */
 	memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET);
 
-	/* The packet offset field conain info about what type of managment frame */
-	/* we are dealing with and ack status */
 	pkt_offset = GET_PKT_OFFSET(header);
 
 	if (pkt_offset & IS_MANAGMEMENT_CALLBACK) {
@@ -1948,21 +1663,18 @@ void WILC_WFI_p2p_rx (struct net_device *dev, u8 *buff, u32 size)
 			return;
 		}
 	} else {
-
 		PRINT_D(GENERIC_DBG, "Rx Frame Type:%x\n", buff[FRAME_TYPE_ID]);
 
-		/*Upper layer is informed that the frame is received on this freq*/
 		s32Freq = ieee80211_channel_to_frequency(curr_channel, IEEE80211_BAND_2GHZ);
 
 		if (ieee80211_is_action(buff[FRAME_TYPE_ID])) {
 			PRINT_D(GENERIC_DBG, "Rx Action Frame Type: %x %x\n", buff[ACTION_SUBTYPE_ID], buff[P2P_PUB_ACTION_SUBTYPE]);
 
-			if (priv->bCfgScanning && time_after_eq(jiffies, (unsigned long)pstrWFIDrv->u64P2p_MgmtTimeout)) {
+			if (priv->bCfgScanning && time_after_eq(jiffies, (unsigned long)pstrWFIDrv->p2p_timeout)) {
 				PRINT_D(GENERIC_DBG, "Receiving action frames from wrong channels\n");
 				return;
 			}
 			if (buff[ACTION_CAT_ID] == PUB_ACTION_ATTR_ID) {
-
 				switch (buff[ACTION_SUBTYPE_ID]) {
 				case GAS_INTIAL_REQ:
 					PRINT_D(GENERIC_DBG, "GAS INITIAL REQ %x\n", buff[ACTION_SUBTYPE_ID]);
@@ -1973,39 +1685,37 @@ void WILC_WFI_p2p_rx (struct net_device *dev, u8 *buff, u32 size)
 					break;
 
 				case PUBLIC_ACT_VENDORSPEC:
-					/*Now we have a public action vendor specific action frame, check if its a p2p public action frame
-					 * based on the standard its should have the p2p_oui attribute with the following values 50 6f 9A 09*/
-					if (!memcmp(u8P2P_oui, &buff[ACTION_SUBTYPE_ID + 1], 4)) {
+					if (!memcmp(p2p_oui, &buff[ACTION_SUBTYPE_ID + 1], 4)) {
 						if ((buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP))	{
-							if (!bWilc_ie) {
+							if (!wilc_ie) {
 								for (i = P2P_PUB_ACTION_SUBTYPE; i < size; i++)	{
-									if (!memcmp(u8P2P_vendorspec, &buff[i], 6)) {
-										u8P2Precvrandom = buff[i + 6];
-										bWilc_ie = true;
-										PRINT_D(GENERIC_DBG, "WILC Vendor specific IE:%02x\n", u8P2Precvrandom);
+									if (!memcmp(p2p_vendor_spec, &buff[i], 6)) {
+										p2p_recv_random = buff[i + 6];
+										wilc_ie = true;
+										PRINT_D(GENERIC_DBG, "WILC Vendor specific IE:%02x\n", p2p_recv_random);
 										break;
 									}
 								}
 							}
 						}
-						if (u8P2Plocalrandom > u8P2Precvrandom)	{
+						if (p2p_local_random > p2p_recv_random)	{
 							if ((buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP
 							      || buff[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_RSP)) {
 								for (i = P2P_PUB_ACTION_SUBTYPE + 2; i < size; i++) {
-									if (buff[i] == P2PELEM_ATTR_ID && !(memcmp(u8P2P_oui, &buff[i + 2], 4))) {
+									if (buff[i] == P2PELEM_ATTR_ID && !(memcmp(p2p_oui, &buff[i + 2], 4))) {
 										WILC_WFI_CfgParseRxAction(&buff[i + 6], size - (i + 6));
 										break;
 									}
 								}
 							}
-						} else
-							PRINT_D(GENERIC_DBG, "PEER WILL BE GO LocaRand=%02x RecvRand %02x\n", u8P2Plocalrandom, u8P2Precvrandom);
+						} else {
+							PRINT_D(GENERIC_DBG, "PEER WILL BE GO LocaRand=%02x RecvRand %02x\n", p2p_local_random, p2p_recv_random);
+						}
 					}
 
 
-					if ((buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP) && (bWilc_ie))	{
+					if ((buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP) && (wilc_ie))	{
 						PRINT_D(GENERIC_DBG, "Sending P2P to host without extra elemnt\n");
-						/* extra attribute for sig_dbm: signal strength in mBm, or 0 if unknown */
 						cfg80211_rx_mgmt(priv->wdev, s32Freq, 0, buff, size - 7, 0);
 						return;
 					}
@@ -2022,16 +1732,6 @@ void WILC_WFI_p2p_rx (struct net_device *dev, u8 *buff, u32 size)
 	}
 }
 
-/**
- *  @brief                      WILC_WFI_mgmt_tx_complete
- *  @details            Returns result of writing mgmt frame to VMM (Tx buffers are freed here)
- *  @param[in]          priv
- *                              transmitting status
- *  @return             None
- *  @author		Amr Abdelmoghny
- *  @date			20 MAY 2013
- *  @version		1.0
- */
 static void WILC_WFI_mgmt_tx_complete(void *priv, int status)
 {
 	struct p2p_mgmt_data *pv_data = (struct p2p_mgmt_data *)priv;
@@ -2041,16 +1741,6 @@ static void WILC_WFI_mgmt_tx_complete(void *priv, int status)
 	kfree(pv_data);
 }
 
-/**
- * @brief               WILC_WFI_RemainOnChannelReady
- *  @details    Callback function, called from handle_remain_on_channel on being ready on channel
- *  @param
- *  @return     none
- *  @author	Amr abdelmoghny
- *  @date		9 JUNE 2013
- *  @version
- */
-
 static void WILC_WFI_RemainOnChannelReady(void *pUserVoid)
 {
 	struct wilc_priv *priv;
@@ -2068,16 +1758,6 @@ static void WILC_WFI_RemainOnChannelReady(void *pUserVoid)
 				  GFP_KERNEL);
 }
 
-/**
- * @brief               WILC_WFI_RemainOnChannelExpired
- *  @details    Callback function, called on expiration of remain-on-channel duration
- *  @param
- *  @return     none
- *  @author	Amr abdelmoghny
- *  @date		15 MAY 2013
- *  @version
- */
-
 static void WILC_WFI_RemainOnChannelExpired(void *pUserVoid, u32 u32SessionID)
 {
 	struct wilc_priv *priv;
@@ -2089,7 +1769,6 @@ static void WILC_WFI_RemainOnChannelExpired(void *pUserVoid, u32 u32SessionID)
 
 		priv->bInP2PlistenState = false;
 
-		/*Inform wpas of remain-on-channel expiration*/
 		cfg80211_remain_on_channel_expired(priv->wdev,
 						   priv->strRemainOnChanParams.u64ListenCookie,
 						   priv->strRemainOnChanParams.pstrListenChan,
@@ -2100,20 +1779,6 @@ static void WILC_WFI_RemainOnChannelExpired(void *pUserVoid, u32 u32SessionID)
 	}
 }
 
-
-/**
- *  @brief      remain_on_channel
- *  @details    Request the driver to remain awake on the specified
- *                      channel for the specified duration to complete an off-channel
- *                      operation (e.g., public action frame exchange). When the driver is
- *                      ready on the requested channel, it must indicate this with an event
- *                      notification by calling cfg80211_ready_on_channel().
- *  @param[in]
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int remain_on_channel(struct wiphy *wiphy,
 			     struct wireless_dev *wdev,
 			     struct ieee80211_channel *chan,
@@ -2121,8 +1786,10 @@ static int remain_on_channel(struct wiphy *wiphy,
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	PRINT_D(GENERIC_DBG, "Remaining on channel %d\n", chan->hw_value);
 
@@ -2134,61 +1801,37 @@ static int remain_on_channel(struct wiphy *wiphy,
 
 	curr_channel = chan->hw_value;
 
-	/*Setting params needed by WILC_WFI_RemainOnChannelExpired()*/
 	priv->strRemainOnChanParams.pstrListenChan = chan;
 	priv->strRemainOnChanParams.u64ListenCookie = *cookie;
 	priv->strRemainOnChanParams.u32ListenDuration = duration;
 	priv->strRemainOnChanParams.u32ListenSessionID++;
 
-	s32Error = host_int_remain_on_channel(priv->hWILCWFIDrv
-					      , priv->strRemainOnChanParams.u32ListenSessionID
-					      , duration
-					      , chan->hw_value
-					      , WILC_WFI_RemainOnChannelExpired
-					      , WILC_WFI_RemainOnChannelReady
-					      , (void *)priv);
+	s32Error = wilc_remain_on_channel(vif,
+				priv->strRemainOnChanParams.u32ListenSessionID,
+				duration, chan->hw_value,
+				WILC_WFI_RemainOnChannelExpired,
+				WILC_WFI_RemainOnChannelReady, (void *)priv);
 
 	return s32Error;
 }
 
-/**
- *  @brief      cancel_remain_on_channel
- *  @details    Cancel an on-going remain-on-channel operation.
- *                      This allows the operation to be terminated prior to timeout based on
- *                      the duration value.
- *  @param[in]   struct wiphy *wiphy,
- *  @param[in]  struct net_device *dev
- *  @param[in]  u64 cookie,
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int cancel_remain_on_channel(struct wiphy *wiphy,
 				    struct wireless_dev *wdev,
 				    u64 cookie)
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	PRINT_D(CFG80211_DBG, "Cancel remain on channel\n");
 
-	s32Error = host_int_ListenStateExpired(priv->hWILCWFIDrv, priv->strRemainOnChanParams.u32ListenSessionID);
+	s32Error = wilc_listen_state_expired(vif, priv->strRemainOnChanParams.u32ListenSessionID);
 	return s32Error;
 }
-/**
- *  @brief      WILC_WFI_mgmt_tx_frame
- *  @details
- *
- *  @param[in]
- *  @return     NONE.
- *  @author	mdaftedar
- *  @date	01 JUL 2012
- *  @version
- */
-extern bool bEnablePS;
+
 static int mgmt_tx(struct wiphy *wiphy,
 		   struct wireless_dev *wdev,
 		   struct cfg80211_mgmt_tx_params *params,
@@ -2203,10 +1846,10 @@ static int mgmt_tx(struct wiphy *wiphy,
 	struct wilc_priv *priv;
 	struct host_if_drv *pstrWFIDrv;
 	u32 i;
-	perInterface_wlan_t *nic;
-	u32 buf_len = len + sizeof(u8P2P_vendorspec) + sizeof(u8P2Plocalrandom);
+	struct wilc_vif *vif;
+	u32 buf_len = len + sizeof(p2p_vendor_spec) + sizeof(p2p_local_random);
 
-	nic = netdev_priv(wdev->netdev);
+	vif = netdev_priv(wdev->netdev);
 	priv = wiphy_priv(wiphy);
 	pstrWFIDrv = (struct host_if_drv *)priv->hWILCWFIDrv;
 
@@ -2215,15 +1858,13 @@ static int mgmt_tx(struct wiphy *wiphy,
 	mgmt = (const struct ieee80211_mgmt *) buf;
 
 	if (ieee80211_is_mgmt(mgmt->frame_control)) {
-
-		/*mgmt frame allocation*/
 		mgmt_tx = kmalloc(sizeof(struct p2p_mgmt_data), GFP_KERNEL);
-		if (mgmt_tx == NULL) {
+		if (!mgmt_tx) {
 			PRINT_ER("Failed to allocate memory for mgmt_tx structure\n");
 			return -EFAULT;
 		}
 		mgmt_tx->buff = kmalloc(buf_len, GFP_KERNEL);
-		if (mgmt_tx->buff == NULL) {
+		if (!mgmt_tx->buff) {
 			PRINT_ER("Failed to allocate memory for mgmt_tx buff\n");
 			kfree(mgmt_tx);
 			return -EFAULT;
@@ -2235,23 +1876,18 @@ static int mgmt_tx(struct wiphy *wiphy,
 		if (ieee80211_is_probe_resp(mgmt->frame_control)) {
 			PRINT_D(GENERIC_DBG, "TX: Probe Response\n");
 			PRINT_D(GENERIC_DBG, "Setting channel: %d\n", chan->hw_value);
-			host_int_set_mac_chnl_num(priv->hWILCWFIDrv, chan->hw_value);
-			/*Save the current channel after we tune to it*/
+			wilc_set_mac_chnl_num(vif, chan->hw_value);
 			curr_channel = chan->hw_value;
 		} else if (ieee80211_is_action(mgmt->frame_control))   {
 			PRINT_D(GENERIC_DBG, "ACTION FRAME:%x\n", (u16)mgmt->frame_control);
 
 
 			if (buf[ACTION_CAT_ID] == PUB_ACTION_ATTR_ID) {
-				/*Only set the channel, if not a negotiation confirmation frame
-				 * (If Negotiation confirmation frame, force it
-				 * to be transmitted on the same negotiation channel)*/
-
 				if (buf[ACTION_SUBTYPE_ID] != PUBLIC_ACT_VENDORSPEC ||
 				    buf[P2P_PUB_ACTION_SUBTYPE] != GO_NEG_CONF)	{
 					PRINT_D(GENERIC_DBG, "Setting channel: %d\n", chan->hw_value);
-					host_int_set_mac_chnl_num(priv->hWILCWFIDrv, chan->hw_value);
-					/*Save the current channel after we tune to it*/
+					wilc_set_mac_chnl_num(vif,
+							      chan->hw_value);
 					curr_channel = chan->hw_value;
 				}
 				switch (buf[ACTION_SUBTYPE_ID])	{
@@ -2269,48 +1905,37 @@ static int mgmt_tx(struct wiphy *wiphy,
 
 				case PUBLIC_ACT_VENDORSPEC:
 				{
-					/*Now we have a public action vendor specific action frame, check if its a p2p public action frame
-					 * based on the standard its should have the p2p_oui attribute with the following values 50 6f 9A 09*/
-					if (!memcmp(u8P2P_oui, &buf[ACTION_SUBTYPE_ID + 1], 4)) {
-						/*For the connection of two WILC's connection generate a rand number to determine who will be a GO*/
+					if (!memcmp(p2p_oui, &buf[ACTION_SUBTYPE_ID + 1], 4)) {
 						if ((buf[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buf[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP)) {
-							if (u8P2Plocalrandom == 1 && u8P2Precvrandom < u8P2Plocalrandom) {
-								get_random_bytes(&u8P2Plocalrandom, 1);
-								/*Increment the number to prevent if its 0*/
-								u8P2Plocalrandom++;
+							if (p2p_local_random == 1 && p2p_recv_random < p2p_local_random) {
+								get_random_bytes(&p2p_local_random, 1);
+								p2p_local_random++;
 							}
 						}
 
 						if ((buf[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_REQ || buf[P2P_PUB_ACTION_SUBTYPE] == GO_NEG_RSP
 						      || buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_REQ || buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_RSP)) {
-							if (u8P2Plocalrandom > u8P2Precvrandom)	{
-								PRINT_D(GENERIC_DBG, "LOCAL WILL BE GO LocaRand=%02x RecvRand %02x\n", u8P2Plocalrandom, u8P2Precvrandom);
+							if (p2p_local_random > p2p_recv_random)	{
+								PRINT_D(GENERIC_DBG, "LOCAL WILL BE GO LocaRand=%02x RecvRand %02x\n", p2p_local_random, p2p_recv_random);
 
-								/*Search for the p2p information information element , after the Public action subtype theres a byte for teh dialog token, skip that*/
 								for (i = P2P_PUB_ACTION_SUBTYPE + 2; i < len; i++) {
-									if (buf[i] == P2PELEM_ATTR_ID && !(memcmp(u8P2P_oui, &buf[i + 2], 4))) {
+									if (buf[i] == P2PELEM_ATTR_ID && !(memcmp(p2p_oui, &buf[i + 2], 4))) {
 										if (buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_REQ || buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_RSP)
-											WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), true, nic->iftype);
-
-										/*If using supplicant go intent, no need at all*/
-										/*to parse transmitted negotiation frames*/
+											WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), true, vif->iftype);
 										else
-											WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), false, nic->iftype);
+											WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), false, vif->iftype);
 										break;
 									}
 								}
 
 								if (buf[P2P_PUB_ACTION_SUBTYPE] != P2P_INV_REQ && buf[P2P_PUB_ACTION_SUBTYPE] != P2P_INV_RSP) {
-									/*
-									 * Adding WILC information element to allow two WILC devices to
-									 * identify each other and connect
-									 */
-									memcpy(&mgmt_tx->buff[len], u8P2P_vendorspec, sizeof(u8P2P_vendorspec));
-									mgmt_tx->buff[len + sizeof(u8P2P_vendorspec)] = u8P2Plocalrandom;
+									memcpy(&mgmt_tx->buff[len], p2p_vendor_spec, sizeof(p2p_vendor_spec));
+									mgmt_tx->buff[len + sizeof(p2p_vendor_spec)] = p2p_local_random;
 									mgmt_tx->size = buf_len;
 								}
-							} else
-								PRINT_D(GENERIC_DBG, "PEER WILL BE GO LocaRand=%02x RecvRand %02x\n", u8P2Plocalrandom, u8P2Precvrandom);
+							} else {
+								PRINT_D(GENERIC_DBG, "PEER WILL BE GO LocaRand=%02x RecvRand %02x\n", p2p_local_random, p2p_recv_random);
+							}
 						}
 
 					} else {
@@ -2326,18 +1951,17 @@ static int mgmt_tx(struct wiphy *wiphy,
 					break;
 				}
 				}
-
 			}
 
 			PRINT_D(GENERIC_DBG, "TX: ACTION FRAME Type:%x : Chan:%d\n", buf[ACTION_SUBTYPE_ID], chan->hw_value);
-			pstrWFIDrv->u64P2p_MgmtTimeout = (jiffies + msecs_to_jiffies(wait));
-
-			PRINT_D(GENERIC_DBG, "Current Jiffies: %lu Timeout:%llu\n", jiffies, pstrWFIDrv->u64P2p_MgmtTimeout);
+			pstrWFIDrv->p2p_timeout = (jiffies + msecs_to_jiffies(wait));
 
+			PRINT_D(GENERIC_DBG, "Current Jiffies: %lu Timeout:%llu\n",
+				jiffies, pstrWFIDrv->p2p_timeout);
 		}
 
-		wilc_wlan_txq_add_mgmt_pkt(mgmt_tx, mgmt_tx->buff,
-					   mgmt_tx->size,
+		wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx,
+					   mgmt_tx->buff, mgmt_tx->size,
 					   WILC_WFI_mgmt_tx_complete);
 	} else {
 		PRINT_D(GENERIC_DBG, "This function transmits only management frames\n");
@@ -2357,7 +1981,7 @@ static int mgmt_tx_cancel_wait(struct wiphy *wiphy,
 
 
 	PRINT_D(GENERIC_DBG, "Tx Cancel wait :%lu\n", jiffies);
-	pstrWFIDrv->u64P2p_MgmtTimeout = jiffies;
+	pstrWFIDrv->p2p_timeout = jiffies;
 
 	if (!priv->bInP2PlistenState) {
 		cfg80211_remain_on_channel_expired(priv->wdev,
@@ -2369,28 +1993,16 @@ static int mgmt_tx_cancel_wait(struct wiphy *wiphy,
 	return 0;
 }
 
-/**
- *  @brief      wilc_mgmt_frame_register
- *  @details Notify driver that a management frame type was
- *              registered. Note that this callback may not sleep, and cannot run
- *                      concurrently with itself.
- *  @param[in]
- *  @return     NONE.
- *  @author	mdaftedar
- *  @date	01 JUL 2012
- *  @version
- */
 void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
 			      u16 frame_type, bool reg)
 {
-
 	struct wilc_priv *priv;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wl;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(priv->wdev->netdev);
-	wl = nic->wilc;
+	vif = netdev_priv(priv->wdev->netdev);
+	wl = vif->wilc;
 
 	if (!frame_type)
 		return;
@@ -2399,15 +2011,15 @@ void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
 	switch (frame_type) {
 	case PROBE_REQ:
 	{
-		nic->g_struct_frame_reg[0].frame_type = frame_type;
-		nic->g_struct_frame_reg[0].reg = reg;
+		vif->g_struct_frame_reg[0].frame_type = frame_type;
+		vif->g_struct_frame_reg[0].reg = reg;
 	}
 	break;
 
 	case ACTION:
 	{
-		nic->g_struct_frame_reg[1].frame_type = frame_type;
-		nic->g_struct_frame_reg[1].reg = reg;
+		vif->g_struct_frame_reg[1].frame_type = frame_type;
+		vif->g_struct_frame_reg[1].reg = reg;
 	}
 	break;
 
@@ -2415,54 +2027,27 @@ void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
 	{
 		break;
 	}
-
 	}
-	/*If mac is closed, then return*/
+
 	if (!wl->initialized) {
 		PRINT_D(GENERIC_DBG, "Return since mac is closed\n");
 		return;
 	}
-	host_int_frame_register(priv->hWILCWFIDrv, frame_type, reg);
-
-
+	wilc_frame_register(vif, frame_type, reg);
 }
 
-/**
- *  @brief      set_cqm_rssi_config
- *  @details    Configure connection quality monitor RSSI threshold.
- *  @param[in]   struct wiphy *wiphy:
- *  @param[in]	struct net_device *dev:
- *  @param[in]          s32 rssi_thold:
- *  @param[in]	u32 rssi_hyst:
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev,
 			       s32 rssi_thold, u32 rssi_hyst)
 {
 	PRINT_D(CFG80211_DBG, "Setting CQM RSSi Function\n");
 	return 0;
-
 }
-/**
- *  @brief      dump_station
- *  @details    Configure connection quality monitor RSSI threshold.
- *  @param[in]   struct wiphy *wiphy:
- *  @param[in]	struct net_device *dev
- *  @param[in]          int idx
- *  @param[in]	u8 *mac
- *  @param[in]	struct station_info *sinfo
- *  @return     int : Return 0 on Success
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
+
 static int dump_station(struct wiphy *wiphy, struct net_device *dev,
 			int idx, u8 *mac, struct station_info *sinfo)
 {
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 
 	PRINT_D(CFG80211_DBG, "Dumping station information\n");
 
@@ -2470,143 +2055,109 @@ static int dump_station(struct wiphy *wiphy, struct net_device *dev,
 		return -ENOENT;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
 
-	host_int_get_rssi(priv->hWILCWFIDrv, &(sinfo->signal));
+	wilc_get_rssi(vif, &sinfo->signal);
 
 	return 0;
-
 }
 
-
-/**
- *  @brief      set_power_mgmt
- *  @details
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 JUL 2012
- *  @version	1.0
- */
 static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 			  bool enabled, int timeout)
 {
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 
 	PRINT_D(CFG80211_DBG, " Power save Enabled= %d , TimeOut = %d\n", enabled, timeout);
 
-	if (wiphy == NULL)
+	if (!wiphy)
 		return -ENOENT;
 
 	priv = wiphy_priv(wiphy);
-	if (priv->hWILCWFIDrv == NULL) {
+	vif = netdev_priv(priv->dev);
+	if (!priv->hWILCWFIDrv) {
 		PRINT_ER("Driver is NULL\n");
 		return -EIO;
 	}
 
-	if (bEnablePS)
-		host_int_set_power_mgmt(priv->hWILCWFIDrv, enabled, timeout);
+	if (wilc_enable_ps)
+		wilc_set_power_mgmt(vif, enabled, timeout);
 
 
 	return 0;
-
 }
 
-/**
- *  @brief      change_virtual_intf
- *  @details    Change type/configuration of virtual interface,
- *                      keep the struct wireless_dev's iftype updated.
- *  @param[in]   NONE
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic);
-
 static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 			       enum nl80211_iftype type, u32 *flags, struct vif_params *params)
 {
 	struct wilc_priv *priv;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	u8 interface_type;
 	u16 TID = 0;
 	u8 i;
 	struct wilc *wl;
 
-	nic = netdev_priv(dev);
+	vif = netdev_priv(dev);
 	priv = wiphy_priv(wiphy);
-	wl = nic->wilc;
+	wl = vif->wilc;
 
 	PRINT_D(HOSTAPD_DBG, "In Change virtual interface function\n");
 	PRINT_D(HOSTAPD_DBG, "Wireless interface name =%s\n", dev->name);
-	u8P2Plocalrandom = 0x01;
-	u8P2Precvrandom = 0x00;
-
-	bWilc_ie = false;
-
-	g_obtainingIP = false;
-	del_timer(&hDuringIpTimer);
+	p2p_local_random = 0x01;
+	p2p_recv_random = 0x00;
+	wilc_ie = false;
+	wilc_optaining_ip = false;
+	del_timer(&wilc_during_ip_timer);
 	PRINT_D(GENERIC_DBG, "Changing virtual interface, enable scan\n");
-	/*Set WILC_CHANGING_VIR_IF register to disallow adding futrue keys to CE H/W*/
+
 	if (g_ptk_keys_saved && g_gtk_keys_saved) {
-		Set_machw_change_vir_if(dev, true);
+		wilc_set_machw_change_vir_if(dev, true);
 	}
 
 	switch (type) {
 	case NL80211_IFTYPE_STATION:
-		connecting = 0;
+		wilc_connecting = 0;
 		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_STATION\n");
 
-		/* send delba over wlan interface */
-
-
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
-		nic->monitor_flag = 0;
-		nic->iftype = STATION_MODE;
+		vif->monitor_flag = 0;
+		vif->iftype = STATION_MODE;
 
-		/*Remove the enteries of the previously connected clients*/
 		memset(priv->assoc_stainfo.au8Sta_AssociatedBss, 0, MAX_NUM_STA * ETH_ALEN);
-		interface_type = nic->iftype;
-		nic->iftype = STATION_MODE;
+		interface_type = vif->iftype;
+		vif->iftype = STATION_MODE;
 
 		if (wl->initialized) {
-			host_int_del_All_Rx_BASession(priv->hWILCWFIDrv,
-						      wl->vif[0].bssid, TID);
-			/* ensure that the message Q is empty */
-			host_int_wait_msg_queue_idle();
+			wilc_del_all_rx_ba_session(vif, wl->vif[0]->bssid,
+						   TID);
+			wilc_wait_msg_queue_idle();
 
-			/*Eliminate host interface blocking state*/
 			up(&wl->cfg_event);
 
 			wilc1000_wlan_deinit(dev);
-			wilc1000_wlan_init(dev, nic);
-			g_wilc_initialized = 1;
-			nic->iftype = interface_type;
+			wilc1000_wlan_init(dev, vif);
+			wilc_initialized = 1;
+			vif->iftype = interface_type;
 
-			/*Setting interface 1 drv handler and mac address in newly downloaded FW*/
-			host_int_set_wfi_drv_handler(wl->vif[0].hif_drv);
-			host_int_set_MacAddress(wl->vif[0].hif_drv,
-						wl->vif[0].src_addr);
-			host_int_set_operation_mode(priv->hWILCWFIDrv, STATION_MODE);
+			wilc_set_wfi_drv_handler(vif,
+						 wilc_get_vif_idx(wl->vif[0]));
+			wilc_set_mac_address(wl->vif[0], wl->vif[0]->src_addr);
+			wilc_set_operation_mode(vif, STATION_MODE);
 
-			/*Add saved WEP keys, if any*/
 			if (g_wep_keys_saved) {
-				host_int_set_wep_default_key(wl->vif[0].hif_drv,
-							     g_key_wep_params.key_idx);
-				host_int_add_wep_key_bss_sta(wl->vif[0].hif_drv,
-							     g_key_wep_params.key,
-							     g_key_wep_params.key_len,
-							     g_key_wep_params.key_idx);
+				wilc_set_wep_default_keyid(wl->vif[0],
+						g_key_wep_params.key_idx);
+				wilc_add_wep_key_bss_sta(wl->vif[0],
+						g_key_wep_params.key,
+						g_key_wep_params.key_len,
+						g_key_wep_params.key_idx);
 			}
 
-			/*No matter the driver handler passed here, it will be overwriiten*/
-			/*in Handle_FlushConnect() with gu8FlushedJoinReqDrvHandler*/
-			host_int_flush_join_req(priv->hWILCWFIDrv);
+			wilc_flush_join_req(vif);
 
-			/*Add saved PTK and GTK keys, if any*/
 			if (g_ptk_keys_saved && g_gtk_keys_saved) {
 				PRINT_D(CFG80211_DBG, "ptk %x %x %x\n", g_key_ptk_params.key[0],
 					g_key_ptk_params.key[1],
@@ -2614,15 +2165,15 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 				PRINT_D(CFG80211_DBG, "gtk %x %x %x\n", g_key_gtk_params.key[0],
 					g_key_gtk_params.key[1],
 					g_key_gtk_params.key[2]);
-				add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-					wl->vif[0].ndev,
+				add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+					wl->vif[0]->ndev,
 					g_add_ptk_key_params.key_idx,
 					g_add_ptk_key_params.pairwise,
 					g_add_ptk_key_params.mac_addr,
 					(struct key_params *)(&g_key_ptk_params));
 
-				add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-					wl->vif[0].ndev,
+				add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+					wl->vif[0]->ndev,
 					g_add_gtk_key_params.key_idx,
 					g_add_gtk_key_params.pairwise,
 					g_add_gtk_key_params.mac_addr,
@@ -2631,64 +2182,58 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 
 			if (wl->initialized)	{
 				for (i = 0; i < num_reg_frame; i++) {
-					PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", nic->g_struct_frame_reg[i].frame_type,
-						nic->g_struct_frame_reg[i].reg);
-					host_int_frame_register(priv->hWILCWFIDrv,
-								nic->g_struct_frame_reg[i].frame_type,
-								nic->g_struct_frame_reg[i].reg);
+					PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", vif->g_struct_frame_reg[i].frame_type,
+						vif->g_struct_frame_reg[i].reg);
+					wilc_frame_register(vif,
+								vif->g_struct_frame_reg[i].frame_type,
+								vif->g_struct_frame_reg[i].reg);
 				}
 			}
 
-			bEnablePS = true;
-			host_int_set_power_mgmt(priv->hWILCWFIDrv, 1, 0);
+			wilc_enable_ps = true;
+			wilc_set_power_mgmt(vif, 1, 0);
 		}
 		break;
 
 	case NL80211_IFTYPE_P2P_CLIENT:
-		bEnablePS = false;
-		host_int_set_power_mgmt(priv->hWILCWFIDrv, 0, 0);
-		connecting = 0;
+		wilc_enable_ps = false;
+		wilc_set_power_mgmt(vif, 0, 0);
+		wilc_connecting = 0;
 		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_P2P_CLIENT\n");
 
-		host_int_del_All_Rx_BASession(priv->hWILCWFIDrv,
-					      wl->vif[0].bssid, TID);
+		wilc_del_all_rx_ba_session(vif, wl->vif[0]->bssid, TID);
 
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
-		nic->monitor_flag = 0;
+		vif->monitor_flag = 0;
 
 		PRINT_D(HOSTAPD_DBG, "Downloading P2P_CONCURRENCY_FIRMWARE\n");
-		nic->iftype = CLIENT_MODE;
+		vif->iftype = CLIENT_MODE;
 
 
 		if (wl->initialized)	{
-			/* ensure that the message Q is empty */
-			host_int_wait_msg_queue_idle();
+			wilc_wait_msg_queue_idle();
 
 			wilc1000_wlan_deinit(dev);
-			wilc1000_wlan_init(dev, nic);
-			g_wilc_initialized = 1;
+			wilc1000_wlan_init(dev, vif);
+			wilc_initialized = 1;
 
-			host_int_set_wfi_drv_handler(wl->vif[0].hif_drv);
-			host_int_set_MacAddress(wl->vif[0].hif_drv,
-						wl->vif[0].src_addr);
-			host_int_set_operation_mode(priv->hWILCWFIDrv, STATION_MODE);
+			wilc_set_wfi_drv_handler(vif,
+						 wilc_get_vif_idx(wl->vif[0]));
+			wilc_set_mac_address(wl->vif[0], wl->vif[0]->src_addr);
+			wilc_set_operation_mode(vif, STATION_MODE);
 
-			/*Add saved WEP keys, if any*/
 			if (g_wep_keys_saved) {
-				host_int_set_wep_default_key(wl->vif[0].hif_drv,
-							     g_key_wep_params.key_idx);
-				host_int_add_wep_key_bss_sta(wl->vif[0].hif_drv,
-							     g_key_wep_params.key,
-							     g_key_wep_params.key_len,
-							     g_key_wep_params.key_idx);
+				wilc_set_wep_default_keyid(wl->vif[0],
+						g_key_wep_params.key_idx);
+				wilc_add_wep_key_bss_sta(wl->vif[0],
+						g_key_wep_params.key,
+						g_key_wep_params.key_len,
+						g_key_wep_params.key_idx);
 			}
 
-			/*No matter the driver handler passed here, it will be overwriiten*/
-			/*in Handle_FlushConnect() with gu8FlushedJoinReqDrvHandler*/
-			host_int_flush_join_req(priv->hWILCWFIDrv);
+			wilc_flush_join_req(vif);
 
-			/*Add saved PTK and GTK keys, if any*/
 			if (g_ptk_keys_saved && g_gtk_keys_saved) {
 				PRINT_D(CFG80211_DBG, "ptk %x %x %x\n", g_key_ptk_params.key[0],
 					g_key_ptk_params.key[1],
@@ -2696,59 +2241,58 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 				PRINT_D(CFG80211_DBG, "gtk %x %x %x\n", g_key_gtk_params.key[0],
 					g_key_gtk_params.key[1],
 					g_key_gtk_params.key[2]);
-				add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-					wl->vif[0].ndev,
+				add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+					wl->vif[0]->ndev,
 					g_add_ptk_key_params.key_idx,
 					g_add_ptk_key_params.pairwise,
 					g_add_ptk_key_params.mac_addr,
 					(struct key_params *)(&g_key_ptk_params));
 
-				add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-					wl->vif[0].ndev,
+				add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+					wl->vif[0]->ndev,
 					g_add_gtk_key_params.key_idx,
 					g_add_gtk_key_params.pairwise,
 					g_add_gtk_key_params.mac_addr,
 					(struct key_params *)(&g_key_gtk_params));
 			}
 
-			/*Refresh scan, to refresh the scan results to the wpa_supplicant. Set MachHw to false to enable further key installments*/
 			refresh_scan(priv, 1, true);
-			Set_machw_change_vir_if(dev, false);
+			wilc_set_machw_change_vir_if(dev, false);
 
 			if (wl->initialized)	{
 				for (i = 0; i < num_reg_frame; i++) {
-					PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", nic->g_struct_frame_reg[i].frame_type,
-						nic->g_struct_frame_reg[i].reg);
-					host_int_frame_register(priv->hWILCWFIDrv,
-								nic->g_struct_frame_reg[i].frame_type,
-								nic->g_struct_frame_reg[i].reg);
+					PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", vif->g_struct_frame_reg[i].frame_type,
+						vif->g_struct_frame_reg[i].reg);
+					wilc_frame_register(vif,
+								vif->g_struct_frame_reg[i].frame_type,
+								vif->g_struct_frame_reg[i].reg);
 				}
 			}
 		}
 		break;
 
 	case NL80211_IFTYPE_AP:
-		bEnablePS = false;
+		wilc_enable_ps = false;
 		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_AP %d\n", type);
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
-		nic->iftype = AP_MODE;
+		vif->iftype = AP_MODE;
 		PRINT_D(CORECONFIG_DBG, "priv->hWILCWFIDrv[%p]\n", priv->hWILCWFIDrv);
 
 		PRINT_D(HOSTAPD_DBG, "Downloading AP firmware\n");
-		linux_wlan_get_firmware(nic);
-		/*If wilc is running, then close-open to actually get new firmware running (serves P2P)*/
+		wilc_wlan_get_firmware(dev);
+
 		if (wl->initialized)	{
-			nic->iftype = AP_MODE;
-			mac_close(dev);
-			mac_open(dev);
+			vif->iftype = AP_MODE;
+			wilc_mac_close(dev);
+			wilc_mac_open(dev);
 
 			for (i = 0; i < num_reg_frame; i++) {
-				PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", nic->g_struct_frame_reg[i].frame_type,
-					nic->g_struct_frame_reg[i].reg);
-				host_int_frame_register(priv->hWILCWFIDrv,
-							nic->g_struct_frame_reg[i].frame_type,
-							nic->g_struct_frame_reg[i].reg);
+				PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", vif->g_struct_frame_reg[i].frame_type,
+					vif->g_struct_frame_reg[i].reg);
+				wilc_frame_register(vif,
+							vif->g_struct_frame_reg[i].frame_type,
+							vif->g_struct_frame_reg[i].reg);
 			}
 		}
 		break;
@@ -2756,16 +2300,12 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 	case NL80211_IFTYPE_P2P_GO:
 		PRINT_D(GENERIC_DBG, "start duringIP timer\n");
 
-		g_obtainingIP = true;
-		mod_timer(&hDuringIpTimer, jiffies + msecs_to_jiffies(duringIP_TIME));
-		host_int_set_power_mgmt(priv->hWILCWFIDrv, 0, 0);
-		/*Delete block ack has to be the latest config packet*/
-		/*sent before downloading new FW. This is because it blocks on*/
-		/*hWaitResponse semaphore, which allows previous config*/
-		/*packets to actually take action on old FW*/
-		host_int_del_All_Rx_BASession(priv->hWILCWFIDrv,
-					      wl->vif[0].bssid, TID);
-		bEnablePS = false;
+		wilc_optaining_ip = true;
+		mod_timer(&wilc_during_ip_timer,
+			  jiffies + msecs_to_jiffies(during_ip_time));
+		wilc_set_power_mgmt(vif, 0, 0);
+		wilc_del_all_rx_ba_session(vif, wl->vif[0]->bssid, TID);
+		wilc_enable_ps = false;
 		PRINT_D(HOSTAPD_DBG, "Interface type = NL80211_IFTYPE_GO\n");
 		dev->ieee80211_ptr->iftype = type;
 		priv->wdev->iftype = type;
@@ -2775,36 +2315,28 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 		PRINT_D(HOSTAPD_DBG, "Downloading P2P_CONCURRENCY_FIRMWARE\n");
 
 
-		nic->iftype = GO_MODE;
+		vif->iftype = GO_MODE;
 
-		/* ensure that the message Q is empty */
-		host_int_wait_msg_queue_idle();
+		wilc_wait_msg_queue_idle();
 		wilc1000_wlan_deinit(dev);
-		wilc1000_wlan_init(dev, nic);
-		g_wilc_initialized = 1;
-
+		wilc1000_wlan_init(dev, vif);
+		wilc_initialized = 1;
 
-		/*Setting interface 1 drv handler and mac address in newly downloaded FW*/
-		host_int_set_wfi_drv_handler(wl->vif[0].hif_drv);
-		host_int_set_MacAddress(wl->vif[0].hif_drv,
-					wl->vif[0].src_addr);
-		host_int_set_operation_mode(priv->hWILCWFIDrv, AP_MODE);
+		wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(wl->vif[0]));
+		wilc_set_mac_address(wl->vif[0], wl->vif[0]->src_addr);
+		wilc_set_operation_mode(vif, AP_MODE);
 
-		/*Add saved WEP keys, if any*/
 		if (g_wep_keys_saved) {
-			host_int_set_wep_default_key(wl->vif[0].hif_drv,
-						     g_key_wep_params.key_idx);
-			host_int_add_wep_key_bss_sta(wl->vif[0].hif_drv,
-						     g_key_wep_params.key,
-						     g_key_wep_params.key_len,
-						     g_key_wep_params.key_idx);
+			wilc_set_wep_default_keyid(wl->vif[0],
+						   g_key_wep_params.key_idx);
+			wilc_add_wep_key_bss_sta(wl->vif[0],
+						 g_key_wep_params.key,
+						 g_key_wep_params.key_len,
+						 g_key_wep_params.key_idx);
 		}
 
-		/*No matter the driver handler passed here, it will be overwriiten*/
-		/*in Handle_FlushConnect() with gu8FlushedJoinReqDrvHandler*/
-		host_int_flush_join_req(priv->hWILCWFIDrv);
+		wilc_flush_join_req(vif);
 
-		/*Add saved PTK and GTK keys, if any*/
 		if (g_ptk_keys_saved && g_gtk_keys_saved) {
 			PRINT_D(CFG80211_DBG, "ptk %x %x %x cipher %x\n", g_key_ptk_params.key[0],
 				g_key_ptk_params.key[1],
@@ -2814,15 +2346,15 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 				g_key_gtk_params.key[1],
 				g_key_gtk_params.key[2],
 				g_key_gtk_params.cipher);
-			add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-				wl->vif[0].ndev,
+			add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+				wl->vif[0]->ndev,
 				g_add_ptk_key_params.key_idx,
 				g_add_ptk_key_params.pairwise,
 				g_add_ptk_key_params.mac_addr,
 				(struct key_params *)(&g_key_ptk_params));
 
-			add_key(wl->vif[0].ndev->ieee80211_ptr->wiphy,
-				wl->vif[0].ndev,
+			add_key(wl->vif[0]->ndev->ieee80211_ptr->wiphy,
+				wl->vif[0]->ndev,
 				g_add_gtk_key_params.key_idx,
 				g_add_gtk_key_params.pairwise,
 				g_add_gtk_key_params.mac_addr,
@@ -2831,11 +2363,11 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 
 		if (wl->initialized)	{
 			for (i = 0; i < num_reg_frame; i++) {
-				PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", nic->g_struct_frame_reg[i].frame_type,
-					nic->g_struct_frame_reg[i].reg);
-				host_int_frame_register(priv->hWILCWFIDrv,
-							nic->g_struct_frame_reg[i].frame_type,
-							nic->g_struct_frame_reg[i].reg);
+				PRINT_D(INIT_DBG, "Frame registering Type: %x - Reg: %d\n", vif->g_struct_frame_reg[i].frame_type,
+					vif->g_struct_frame_reg[i].reg);
+				wilc_frame_register(vif,
+							vif->g_struct_frame_reg[i].frame_type,
+							vif->g_struct_frame_reg[i].reg);
 			}
 		}
 		break;
@@ -2848,32 +2380,6 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
-/* (austin.2013-07-23)
- *
- *      To support revised cfg80211_ops
- *
- *              add_beacon --> start_ap
- *              set_beacon --> change_beacon
- *              del_beacon --> stop_ap
- *
- *              beacon_parameters  -->	cfg80211_ap_settings
- *                                                              cfg80211_beacon_data
- *
- *      applicable for linux kernel 3.4+
- */
-
-/**
- *  @brief      start_ap
- *  @details    Add a beacon with given parameters, @head, @interval
- *                      and @dtim_period will be valid, @tail is optional.
- *  @param[in]   wiphy
- *  @param[in]   dev	The net device structure
- *  @param[in]   settings	cfg80211_ap_settings parameters for the beacon to be added
- *  @return     int : Return 0 on Success.
- *  @author	austin
- *  @date	23 JUL 2013
- *  @version	1.0
- */
 static int start_ap(struct wiphy *wiphy, struct net_device *dev,
 		    struct cfg80211_ap_settings *settings)
 {
@@ -2881,11 +2387,11 @@ static int start_ap(struct wiphy *wiphy, struct net_device *dev,
 	struct wilc_priv *priv;
 	s32 s32Error = 0;
 	struct wilc *wl;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(dev);
-	wl = nic->wilc;
+	vif = netdev_priv(dev);
+	wl = vif ->wilc;
 	PRINT_D(HOSTAPD_DBG, "Starting ap\n");
 
 	PRINT_D(HOSTAPD_DBG, "Interval = %d\n DTIM period = %d\n Head length = %zu Tail length = %zu\n",
@@ -2896,73 +2402,53 @@ static int start_ap(struct wiphy *wiphy, struct net_device *dev,
 	if (s32Error != 0)
 		PRINT_ER("Error in setting channel\n");
 
-	linux_wlan_set_bssid(dev, wl->vif[0].src_addr);
+	wilc_wlan_set_bssid(dev, wl->vif[0]->src_addr);
 
-	s32Error = host_int_add_beacon(priv->hWILCWFIDrv,
-					settings->beacon_interval,
-					settings->dtim_period,
-					beacon->head_len, (u8 *)beacon->head,
-					beacon->tail_len, (u8 *)beacon->tail);
+	s32Error = wilc_add_beacon(vif, settings->beacon_interval,
+				   settings->dtim_period, beacon->head_len,
+				   (u8 *)beacon->head, beacon->tail_len,
+				   (u8 *)beacon->tail);
 
 	return s32Error;
 }
 
-/**
- *  @brief      change_beacon
- *  @details    Add a beacon with given parameters, @head, @interval
- *                      and @dtim_period will be valid, @tail is optional.
- *  @param[in]   wiphy
- *  @param[in]   dev	The net device structure
- *  @param[in]   beacon	cfg80211_beacon_data for the beacon to be changed
- *  @return     int : Return 0 on Success.
- *  @author	austin
- *  @date	23 JUL 2013
- *  @version	1.0
- */
 static int change_beacon(struct wiphy *wiphy, struct net_device *dev,
 			 struct cfg80211_beacon_data *beacon)
 {
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 	s32 s32Error = 0;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 	PRINT_D(HOSTAPD_DBG, "Setting beacon\n");
 
 
-	s32Error = host_int_add_beacon(priv->hWILCWFIDrv,
-					0,
-					0,
-					beacon->head_len, (u8 *)beacon->head,
-					beacon->tail_len, (u8 *)beacon->tail);
+	s32Error = wilc_add_beacon(vif, 0, 0, beacon->head_len,
+				   (u8 *)beacon->head, beacon->tail_len,
+				   (u8 *)beacon->tail);
 
 	return s32Error;
 }
 
-/**
- *  @brief      stop_ap
- *  @details    Remove beacon configuration and stop sending the beacon.
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	austin
- *  @date	23 JUL 2013
- *  @version	1.0
- */
 static int stop_ap(struct wiphy *wiphy, struct net_device *dev)
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
+	struct wilc_vif *vif;
 	u8 NullBssid[ETH_ALEN] = {0};
 
 	if (!wiphy)
 		return -EFAULT;
 
 	priv = wiphy_priv(wiphy);
+	vif = netdev_priv(priv->dev);
 
 	PRINT_D(HOSTAPD_DBG, "Deleting beacon\n");
 
-	linux_wlan_set_bssid(dev, NullBssid);
+	wilc_wlan_set_bssid(dev, NullBssid);
 
-	s32Error = host_int_del_beacon(priv->hWILCWFIDrv);
+	s32Error = wilc_del_beacon(vif);
 
 	if (s32Error)
 		PRINT_ER("Host delete beacon fail\n");
@@ -2970,68 +2456,70 @@ static int stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	return s32Error;
 }
 
-/**
- *  @brief      add_station
- *  @details    Add a new station.
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int add_station(struct wiphy *wiphy, struct net_device *dev,
 		       const u8 *mac, struct station_parameters *params)
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
 	struct add_sta_param strStaParams = { {0} };
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 	if (!wiphy)
 		return -EFAULT;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(dev);
+	vif = netdev_priv(dev);
 
-	if (nic->iftype == AP_MODE || nic->iftype == GO_MODE) {
-		memcpy(strStaParams.au8BSSID, mac, ETH_ALEN);
+	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
+		memcpy(strStaParams.bssid, mac, ETH_ALEN);
 		memcpy(priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid], mac, ETH_ALEN);
-		strStaParams.u16AssocID = params->aid;
-		strStaParams.u8NumRates = params->supported_rates_len;
-		strStaParams.pu8Rates = params->supported_rates;
+		strStaParams.aid = params->aid;
+		strStaParams.rates_len = params->supported_rates_len;
+		strStaParams.rates = params->supported_rates;
 
 		PRINT_D(CFG80211_DBG, "Adding station parameters %d\n", params->aid);
 
 		PRINT_D(CFG80211_DBG, "BSSID = %x%x%x%x%x%x\n", priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][0], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][1], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][2], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][3], priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][4],
 			priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid][5]);
-		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.u16AssocID);
-		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n", strStaParams.u8NumRates);
+		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.aid);
+		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n",
+			strStaParams.rates_len);
 
-		if (params->ht_capa == NULL) {
-			strStaParams.bIsHTSupported = false;
+		if (!params->ht_capa) {
+			strStaParams.ht_supported = false;
 		} else {
-			strStaParams.bIsHTSupported = true;
-			strStaParams.u16HTCapInfo = params->ht_capa->cap_info;
-			strStaParams.u8AmpduParams = params->ht_capa->ampdu_params_info;
-			memcpy(strStaParams.au8SuppMCsSet, &params->ht_capa->mcs, WILC_SUPP_MCS_SET_SIZE);
-			strStaParams.u16HTExtParams = params->ht_capa->extended_ht_cap_info;
-			strStaParams.u32TxBeamformingCap = params->ht_capa->tx_BF_cap_info;
-			strStaParams.u8ASELCap = params->ht_capa->antenna_selection_info;
+			strStaParams.ht_supported = true;
+			strStaParams.ht_capa_info = params->ht_capa->cap_info;
+			strStaParams.ht_ampdu_params = params->ht_capa->ampdu_params_info;
+			memcpy(strStaParams.ht_supp_mcs_set,
+			       &params->ht_capa->mcs,
+			       WILC_SUPP_MCS_SET_SIZE);
+			strStaParams.ht_ext_params = params->ht_capa->extended_ht_cap_info;
+			strStaParams.ht_tx_bf_cap = params->ht_capa->tx_BF_cap_info;
+			strStaParams.ht_ante_sel = params->ht_capa->antenna_selection_info;
 		}
 
-		strStaParams.u16FlagsMask = params->sta_flags_mask;
-		strStaParams.u16FlagsSet = params->sta_flags_set;
-
-		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n", strStaParams.bIsHTSupported);
-		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n", strStaParams.u16HTCapInfo);
-		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n", strStaParams.u8AmpduParams);
-		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n", strStaParams.u16HTExtParams);
-		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n", strStaParams.u32TxBeamformingCap);
-		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n", strStaParams.u8ASELCap);
-		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n", strStaParams.u16FlagsMask);
-		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n", strStaParams.u16FlagsSet);
-
-		s32Error = host_int_add_station(priv->hWILCWFIDrv, &strStaParams);
+		strStaParams.flags_mask = params->sta_flags_mask;
+		strStaParams.flags_set = params->sta_flags_set;
+
+		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n",
+			strStaParams.ht_supported);
+		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n",
+			strStaParams.ht_capa_info);
+		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n",
+			strStaParams.ht_ampdu_params);
+		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n",
+			strStaParams.ht_ext_params);
+		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n",
+			strStaParams.ht_tx_bf_cap);
+		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n",
+			strStaParams.ht_ante_sel);
+		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n",
+			strStaParams.flags_mask);
+		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n",
+			strStaParams.flags_set);
+
+		s32Error = wilc_add_station(vif, &strStaParams);
 		if (s32Error)
 			PRINT_ER("Host add station fail\n");
 	}
@@ -3039,41 +2527,33 @@ static int add_station(struct wiphy *wiphy, struct net_device *dev,
 	return s32Error;
 }
 
-/**
- *  @brief      del_station
- *  @details    Remove a station; @mac may be NULL to remove all stations.
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int del_station(struct wiphy *wiphy, struct net_device *dev,
 		       struct station_del_parameters *params)
 {
 	const u8 *mac = params->mac;
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 	if (!wiphy)
 		return -EFAULT;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(dev);
+	vif = netdev_priv(dev);
 
-	if (nic->iftype == AP_MODE || nic->iftype == GO_MODE) {
+	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
 		PRINT_D(HOSTAPD_DBG, "Deleting station\n");
 
 
-		if (mac == NULL) {
+		if (!mac) {
 			PRINT_D(HOSTAPD_DBG, "All associated stations\n");
-			s32Error = host_int_del_allstation(priv->hWILCWFIDrv, priv->assoc_stainfo.au8Sta_AssociatedBss);
+			s32Error = wilc_del_allstation(vif,
+				     priv->assoc_stainfo.au8Sta_AssociatedBss);
 		} else {
 			PRINT_D(HOSTAPD_DBG, "With mac address: %x%x%x%x%x%x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
 		}
 
-		s32Error = host_int_del_station(priv->hWILCWFIDrv, mac);
+		s32Error = wilc_del_station(vif, mac);
 
 		if (s32Error)
 			PRINT_ER("Host delete station fail\n");
@@ -3081,22 +2561,13 @@ static int del_station(struct wiphy *wiphy, struct net_device *dev,
 	return s32Error;
 }
 
-/**
- *  @brief      change_station
- *  @details    Modify a given station.
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 static int change_station(struct wiphy *wiphy, struct net_device *dev,
 			  const u8 *mac, struct station_parameters *params)
 {
 	s32 s32Error = 0;
 	struct wilc_priv *priv;
 	struct add_sta_param strStaParams = { {0} };
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 
 
 	PRINT_D(HOSTAPD_DBG, "Change station paramters\n");
@@ -3105,61 +2576,63 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev,
 		return -EFAULT;
 
 	priv = wiphy_priv(wiphy);
-	nic = netdev_priv(dev);
-
-	if (nic->iftype == AP_MODE || nic->iftype == GO_MODE) {
-		memcpy(strStaParams.au8BSSID, mac, ETH_ALEN);
-		strStaParams.u16AssocID = params->aid;
-		strStaParams.u8NumRates = params->supported_rates_len;
-		strStaParams.pu8Rates = params->supported_rates;
-
-		PRINT_D(HOSTAPD_DBG, "BSSID = %x%x%x%x%x%x\n", strStaParams.au8BSSID[0], strStaParams.au8BSSID[1], strStaParams.au8BSSID[2], strStaParams.au8BSSID[3], strStaParams.au8BSSID[4],
-			strStaParams.au8BSSID[5]);
-		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.u16AssocID);
-		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n", strStaParams.u8NumRates);
-
-		if (params->ht_capa == NULL) {
-			strStaParams.bIsHTSupported = false;
+	vif = netdev_priv(dev);
+
+	if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) {
+		memcpy(strStaParams.bssid, mac, ETH_ALEN);
+		strStaParams.aid = params->aid;
+		strStaParams.rates_len = params->supported_rates_len;
+		strStaParams.rates = params->supported_rates;
+
+		PRINT_D(HOSTAPD_DBG, "BSSID = %x%x%x%x%x%x\n",
+			strStaParams.bssid[0], strStaParams.bssid[1],
+			strStaParams.bssid[2], strStaParams.bssid[3],
+			strStaParams.bssid[4], strStaParams.bssid[5]);
+		PRINT_D(HOSTAPD_DBG, "ASSOC ID = %d\n", strStaParams.aid);
+		PRINT_D(HOSTAPD_DBG, "Number of supported rates = %d\n",
+			strStaParams.rates_len);
+
+		if (!params->ht_capa) {
+			strStaParams.ht_supported = false;
 		} else {
-			strStaParams.bIsHTSupported = true;
-			strStaParams.u16HTCapInfo = params->ht_capa->cap_info;
-			strStaParams.u8AmpduParams = params->ht_capa->ampdu_params_info;
-			memcpy(strStaParams.au8SuppMCsSet, &params->ht_capa->mcs, WILC_SUPP_MCS_SET_SIZE);
-			strStaParams.u16HTExtParams = params->ht_capa->extended_ht_cap_info;
-			strStaParams.u32TxBeamformingCap = params->ht_capa->tx_BF_cap_info;
-			strStaParams.u8ASELCap = params->ht_capa->antenna_selection_info;
-
+			strStaParams.ht_supported = true;
+			strStaParams.ht_capa_info = params->ht_capa->cap_info;
+			strStaParams.ht_ampdu_params = params->ht_capa->ampdu_params_info;
+			memcpy(strStaParams.ht_supp_mcs_set,
+			       &params->ht_capa->mcs,
+			       WILC_SUPP_MCS_SET_SIZE);
+			strStaParams.ht_ext_params = params->ht_capa->extended_ht_cap_info;
+			strStaParams.ht_tx_bf_cap = params->ht_capa->tx_BF_cap_info;
+			strStaParams.ht_ante_sel = params->ht_capa->antenna_selection_info;
 		}
 
-		strStaParams.u16FlagsMask = params->sta_flags_mask;
-		strStaParams.u16FlagsSet = params->sta_flags_set;
-
-		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n", strStaParams.bIsHTSupported);
-		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n", strStaParams.u16HTCapInfo);
-		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n", strStaParams.u8AmpduParams);
-		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n", strStaParams.u16HTExtParams);
-		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n", strStaParams.u32TxBeamformingCap);
-		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n", strStaParams.u8ASELCap);
-		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n", strStaParams.u16FlagsMask);
-		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n", strStaParams.u16FlagsSet);
-
-		s32Error = host_int_edit_station(priv->hWILCWFIDrv, &strStaParams);
+		strStaParams.flags_mask = params->sta_flags_mask;
+		strStaParams.flags_set = params->sta_flags_set;
+
+		PRINT_D(HOSTAPD_DBG, "IS HT supported = %d\n",
+			strStaParams.ht_supported);
+		PRINT_D(HOSTAPD_DBG, "Capability Info = %d\n",
+			strStaParams.ht_capa_info);
+		PRINT_D(HOSTAPD_DBG, "AMPDU Params = %d\n",
+			strStaParams.ht_ampdu_params);
+		PRINT_D(HOSTAPD_DBG, "HT Extended params = %d\n",
+			strStaParams.ht_ext_params);
+		PRINT_D(HOSTAPD_DBG, "Tx Beamforming Cap = %d\n",
+			strStaParams.ht_tx_bf_cap);
+		PRINT_D(HOSTAPD_DBG, "Antenna selection info = %d\n",
+			strStaParams.ht_ante_sel);
+		PRINT_D(HOSTAPD_DBG, "Flag Mask = %d\n",
+			strStaParams.flags_mask);
+		PRINT_D(HOSTAPD_DBG, "Flag Set = %d\n",
+			strStaParams.flags_set);
+
+		s32Error = wilc_edit_station(vif, &strStaParams);
 		if (s32Error)
 			PRINT_ER("Host edit station fail\n");
 	}
 	return s32Error;
 }
 
-
-/**
- *  @brief      add_virtual_intf
- *  @details
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 JUL 2012
- *  @version	1.0
- */
 static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
 					     const char *name,
 					     unsigned char name_assign_type,
@@ -3167,7 +2640,7 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
 					     u32 *flags,
 					     struct vif_params *params)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc_priv *priv;
 	struct net_device *new_ifc = NULL;
 
@@ -3177,32 +2650,23 @@ static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy,
 
 	PRINT_D(HOSTAPD_DBG, "Adding monitor interface[%p]\n", priv->wdev->netdev);
 
-	nic = netdev_priv(priv->wdev->netdev);
+	vif = netdev_priv(priv->wdev->netdev);
 
 
 	if (type == NL80211_IFTYPE_MONITOR) {
 		PRINT_D(HOSTAPD_DBG, "Monitor interface mode: Initializing mon interface virtual device driver\n");
-		PRINT_D(HOSTAPD_DBG, "Adding monitor interface[%p]\n", nic->wilc_netdev);
-		new_ifc = WILC_WFI_init_mon_interface(name, nic->wilc_netdev);
-		if (new_ifc != NULL) {
+		PRINT_D(HOSTAPD_DBG, "Adding monitor interface[%p]\n", vif->ndev);
+		new_ifc = WILC_WFI_init_mon_interface(name, vif->ndev);
+		if (new_ifc) {
 			PRINT_D(HOSTAPD_DBG, "Setting monitor flag in private structure\n");
-			nic = netdev_priv(priv->wdev->netdev);
-			nic->monitor_flag = 1;
+			vif = netdev_priv(priv->wdev->netdev);
+			vif->monitor_flag = 1;
 		} else
 			PRINT_ER("Error in initializing monitor interface\n ");
 	}
 	return priv->wdev;
 }
 
-/**
- *  @brief      del_virtual_intf
- *  @details
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 JUL 2012
- *  @version	1.0
- */
 static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 {
 	PRINT_D(HOSTAPD_DBG, "Deleting virtual interface\n");
@@ -3210,7 +2674,6 @@ static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 }
 
 static struct cfg80211_ops wilc_cfg80211_ops = {
-
 	.set_monitor_channel = set_channel,
 	.scan = scan,
 	.connect = connect,
@@ -3247,27 +2710,12 @@ static struct cfg80211_ops wilc_cfg80211_ops = {
 
 };
 
-
-
-
-
-/**
- *  @brief      WILC_WFI_update_stats
- *  @details    Modify parameters for a given BSS.
- *  @param[in]
- *  @return     int : Return 0 on Success.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 int WILC_WFI_update_stats(struct wiphy *wiphy, u32 pktlen, u8 changed)
 {
-
 	struct wilc_priv *priv;
 
 	priv = wiphy_priv(wiphy);
 	switch (changed) {
-
 	case WILC_WFI_RX_PKT:
 	{
 		priv->netstats.rx_packets++;
@@ -3291,46 +2739,31 @@ int WILC_WFI_update_stats(struct wiphy *wiphy, u32 pktlen, u8 changed)
 	return 0;
 }
 
-/**
- *  @brief      WILC_WFI_CfgAlloc
- *  @details    Allocation of the wireless device structure and assigning it
- *		to the cfg80211 operations structure.
- *  @param[in]   NONE
- *  @return     wireless_dev : Returns pointer to wireless_dev structure.
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-struct wireless_dev *WILC_WFI_CfgAlloc(void)
+static struct wireless_dev *WILC_WFI_CfgAlloc(void)
 {
-
 	struct wireless_dev *wdev;
 
 
 	PRINT_D(CFG80211_DBG, "Allocating wireless device\n");
-	/*Allocating the wireless device structure*/
+
 	wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
 	if (!wdev) {
 		PRINT_ER("Cannot allocate wireless device\n");
 		goto _fail_;
 	}
 
-	/*Creating a new wiphy, linking wireless structure with the wiphy structure*/
 	wdev->wiphy = wiphy_new(&wilc_cfg80211_ops, sizeof(struct wilc_priv));
 	if (!wdev->wiphy) {
 		PRINT_ER("Cannot allocate wiphy\n");
 		goto _fail_mem_;
-
 	}
 
-	/* enable 802.11n HT */
 	WILC_WFI_band_2ghz.ht_cap.ht_supported = 1;
 	WILC_WFI_band_2ghz.ht_cap.cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
 	WILC_WFI_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
 	WILC_WFI_band_2ghz.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K;
 	WILC_WFI_band_2ghz.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
 
-	/*wiphy bands*/
 	wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &WILC_WFI_band_2ghz;
 
 	return wdev;
@@ -3339,18 +2772,9 @@ _fail_mem_:
 	kfree(wdev);
 _fail_:
 	return NULL;
-
 }
-/**
- *  @brief      wilc_create_wiphy
- *  @details    Registering of the wiphy structure and interface modes
- *  @param[in]   NONE
- *  @return     NONE
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
-struct wireless_dev *wilc_create_wiphy(struct net_device *net)
+
+struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *dev)
 {
 	struct wilc_priv *priv;
 	struct wireless_dev *wdev;
@@ -3359,38 +2783,25 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net)
 	PRINT_D(CFG80211_DBG, "Registering wifi device\n");
 
 	wdev = WILC_WFI_CfgAlloc();
-	if (wdev == NULL) {
+	if (!wdev) {
 		PRINT_ER("CfgAlloc Failed\n");
 		return NULL;
 	}
 
-
-	/*Return hardware description structure (wiphy)'s priv*/
 	priv = wdev_priv(wdev);
 	sema_init(&(priv->SemHandleUpdateStats), 1);
-
-	/*Link the wiphy with wireless structure*/
 	priv->wdev = wdev;
-
-	/*Maximum number of probed ssid to be added by user for the scan request*/
 	wdev->wiphy->max_scan_ssids = MAX_NUM_PROBED_SSID;
-	/*Maximum number of pmkids to be cashed*/
 	wdev->wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS;
 	PRINT_INFO(CFG80211_DBG, "Max number of PMKIDs = %d\n", wdev->wiphy->max_num_pmkids);
 
 	wdev->wiphy->max_scan_ie_len = 1000;
-
-	/*signal strength in mBm (100*dBm) */
 	wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
-
-	/*Set the availaible cipher suites*/
 	wdev->wiphy->cipher_suites = cipher_suites;
 	wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
-	/*Setting default managment types: for register action frame:  */
 	wdev->wiphy->mgmt_stypes = wilc_wfi_cfg80211_mgmt_types;
 
 	wdev->wiphy->max_remain_on_channel_duration = 500;
-	/*Setting the wiphy interfcae mode and type before registering the wiphy*/
 	wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_MONITOR) | BIT(NL80211_IFTYPE_P2P_GO) |
 		BIT(NL80211_IFTYPE_P2P_CLIENT);
 	wdev->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
@@ -3402,36 +2813,21 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net)
 		   wdev->wiphy->max_scan_ssids, wdev->wiphy->max_scan_ie_len, wdev->wiphy->signal_type,
 		   wdev->wiphy->interface_modes, wdev->iftype);
 
-	#ifdef WILC_SDIO
-	set_wiphy_dev(wdev->wiphy, &local_sdio_func->dev);
-	#endif
+	set_wiphy_dev(wdev->wiphy, dev);
 
-	/*Register wiphy structure*/
 	s32Error = wiphy_register(wdev->wiphy);
 	if (s32Error) {
 		PRINT_ER("Cannot register wiphy device\n");
-		/*should define what action to be taken in such failure*/
 	} else {
 		PRINT_D(CFG80211_DBG, "Successful Registering\n");
 	}
 
 	priv->dev = net;
 	return wdev;
-
-
 }
-/**
- *  @brief      WILC_WFI_WiphyFree
- *  @details    Freeing allocation of the wireless device structure
- *  @param[in]   NONE
- *  @return     NONE
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
+
 int wilc_init_host_int(struct net_device *net)
 {
-
 	int s32Error = 0;
 
 	struct wilc_priv *priv;
@@ -3440,7 +2836,7 @@ int wilc_init_host_int(struct net_device *net)
 	priv = wdev_priv(net->ieee80211_ptr);
 	if (op_ifcs == 0) {
 		setup_timer(&hAgingTimer, remove_network_from_shadow, 0);
-		setup_timer(&hDuringIpTimer, clear_duringIP, 0);
+		setup_timer(&wilc_during_ip_timer, clear_duringIP, 0);
 	}
 	op_ifcs++;
 	if (s32Error < 0) {
@@ -3453,29 +2849,21 @@ int wilc_init_host_int(struct net_device *net)
 	priv->bInP2PlistenState = false;
 
 	sema_init(&(priv->hSemScanReq), 1);
-	s32Error = host_int_init(net, &priv->hWILCWFIDrv);
+	s32Error = wilc_init(net, &priv->hWILCWFIDrv);
 	if (s32Error)
 		PRINT_ER("Error while initializing hostinterface\n");
 
 	return s32Error;
 }
 
-/**
- *  @brief      WILC_WFI_WiphyFree
- *  @details    Freeing allocation of the wireless device structure
- *  @param[in]   NONE
- *  @return     NONE
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 int wilc_deinit_host_int(struct net_device *net)
 {
 	int s32Error = 0;
-
+	struct wilc_vif *vif;
 	struct wilc_priv *priv;
 
 	priv = wdev_priv(net->ieee80211_ptr);
+	vif = netdev_priv(priv->dev);
 
 	priv->gbAutoRateAdjusted = false;
 
@@ -3483,13 +2871,12 @@ int wilc_deinit_host_int(struct net_device *net)
 
 	op_ifcs--;
 
-	s32Error = host_int_deinit(priv->hWILCWFIDrv);
+	s32Error = wilc_deinit(vif);
 
-	/* Clear the Shadow scan */
-	clear_shadow_scan(priv);
+	clear_shadow_scan();
 	if (op_ifcs == 0) {
 		PRINT_D(CORECONFIG_DBG, "destroy during ip\n");
-		del_timer_sync(&hDuringIpTimer);
+		del_timer_sync(&wilc_during_ip_timer);
 	}
 
 	if (s32Error)
@@ -3498,16 +2885,6 @@ int wilc_deinit_host_int(struct net_device *net)
 	return s32Error;
 }
 
-
-/**
- *  @brief      WILC_WFI_WiphyFree
- *  @details    Freeing allocation of the wireless device structure
- *  @param[in]   NONE
- *  @return     NONE
- *  @author	mdaftedar
- *  @date	01 MAR 2012
- *  @version	1.0
- */
 void wilc_free_wiphy(struct net_device *net)
 {
 	PRINT_D(CFG80211_DBG, "Unregistering wiphy\n");
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
index 39cd8e1b5675..ab53d9d59081 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
@@ -10,88 +10,7 @@
 #define NM_WFI_CFGOPERATIONS
 #include "wilc_wfi_netdevice.h"
 
-/* The following macros describe the bitfield map used by the firmware to determine its 11i mode */
-#define NO_ENCRYPT		0
-#define ENCRYPT_ENABLED		BIT(0)
-#define WEP			BIT(1)
-#define WEP_EXTENDED		BIT(2)
-#define WPA			BIT(3)
-#define WPA2			BIT(4)
-#define AES			BIT(5)
-#define TKIP			BIT(6)
-
-/*Public action frame index IDs*/
-#define FRAME_TYPE_ID			0
-#define ACTION_CAT_ID			24
-#define ACTION_SUBTYPE_ID		25
-#define P2P_PUB_ACTION_SUBTYPE		30
-
-/*Public action frame Attribute IDs*/
-#define ACTION_FRAME			0xd0
-#define GO_INTENT_ATTR_ID		0x04
-#define CHANLIST_ATTR_ID		0x0b
-#define OPERCHAN_ATTR_ID		0x11
-#define PUB_ACTION_ATTR_ID		0x04
-#define P2PELEM_ATTR_ID			0xdd
-
-/*Public action subtype values*/
-#define GO_NEG_REQ			0x00
-#define GO_NEG_RSP			0x01
-#define GO_NEG_CONF			0x02
-#define P2P_INV_REQ			0x03
-#define P2P_INV_RSP			0x04
-#define PUBLIC_ACT_VENDORSPEC		0x09
-#define GAS_INTIAL_REQ			0x0a
-#define GAS_INTIAL_RSP			0x0b
-
-#define INVALID_CHANNEL			0
-
-#define nl80211_SCAN_RESULT_EXPIRE	(3 * HZ)
-#define SCAN_RESULT_EXPIRE		(40 * HZ)
-
-static const u32 cipher_suites[] = {
-	WLAN_CIPHER_SUITE_WEP40,
-	WLAN_CIPHER_SUITE_WEP104,
-	WLAN_CIPHER_SUITE_TKIP,
-	WLAN_CIPHER_SUITE_CCMP,
-	WLAN_CIPHER_SUITE_AES_CMAC,
-};
-
-static const struct ieee80211_txrx_stypes
-	wilc_wfi_cfg80211_mgmt_types[NUM_NL80211_IFTYPES] = {
-	[NL80211_IFTYPE_STATION] = {
-		.tx = 0xffff,
-		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
-			BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
-	},
-	[NL80211_IFTYPE_AP] = {
-		.tx = 0xffff,
-		.rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
-			BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
-			BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
-			BIT(IEEE80211_STYPE_DISASSOC >> 4) |
-			BIT(IEEE80211_STYPE_AUTH >> 4) |
-			BIT(IEEE80211_STYPE_DEAUTH >> 4) |
-			BIT(IEEE80211_STYPE_ACTION >> 4)
-	},
-	[NL80211_IFTYPE_P2P_CLIENT] = {
-		.tx = 0xffff,
-		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
-			BIT(IEEE80211_STYPE_PROBE_REQ >> 4) |
-			BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) |
-			BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) |
-			BIT(IEEE80211_STYPE_DISASSOC >> 4) |
-			BIT(IEEE80211_STYPE_AUTH >> 4) |
-			BIT(IEEE80211_STYPE_DEAUTH >> 4)
-	}
-};
-
-/* Time to stay on the channel */
-#define WILC_WFI_DWELL_PASSIVE 100
-#define WILC_WFI_DWELL_ACTIVE  40
-
-struct wireless_dev *WILC_WFI_CfgAlloc(void);
-struct wireless_dev *wilc_create_wiphy(struct net_device *net);
+struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *dev);
 void wilc_free_wiphy(struct net_device *net);
 int WILC_WFI_update_stats(struct wiphy *wiphy, u32 pktlen, u8 changed);
 int wilc_deinit_host_int(struct net_device *net);
@@ -102,8 +21,4 @@ struct net_device *WILC_WFI_init_mon_interface(const char *name, struct net_devi
 void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev,
 			      u16 frame_type, bool reg);
 
-#define TCP_ACK_FILTER_LINK_SPEED_THRESH	54
-#define DEFAULT_LINK_SPEED			72
-void Enable_TCP_ACK_Filter(bool value);
-
 #endif
diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 0bfe7626ad2d..98ac8ed04a06 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -149,6 +149,13 @@ typedef struct {
 } struct_frame_reg;
 
 struct wilc_vif {
+	u8 u8IfIdx;
+	u8 iftype;
+	int monitor_flag;
+	int mac_opened;
+	struct_frame_reg g_struct_frame_reg[num_reg_frame];
+	struct net_device_stats netstats;
+	struct wilc *wilc;
 	u8 src_addr[ETH_ALEN];
 	u8 bssid[ETH_ALEN];
 	struct host_if_drv *hif_drv;
@@ -156,14 +163,15 @@ struct wilc_vif {
 };
 
 struct wilc {
+	const struct wilc_hif_func *hif_func;
+	int io_type;
 	int mac_status;
+	int gpio;
 	bool initialized;
-	#if (!defined WILC_SDIO) || (defined WILC_SDIO_IRQ_GPIO)
-	unsigned short dev_irq_num;
-	#endif
+	int dev_irq_num;
 	int close;
 	u8 vif_num;
-	struct wilc_vif vif[NUM_CONCURRENT_IFC];
+	struct wilc_vif *vif[NUM_CONCURRENT_IFC];
 	u8 open_ifcs;
 
 	struct semaphore txq_add_to_head_cs;
@@ -180,42 +188,54 @@ struct wilc {
 
 	struct task_struct *txq_thread;
 
+	int quit;
+	int cfg_frame_in_use;
+	struct wilc_cfg_frame cfg_frame;
+	u32 cfg_frame_offset;
+	int cfg_seq_no;
+
+	u8 *rx_buffer;
+	u32 rx_buffer_offset;
+	u8 *tx_buffer;
+
+	unsigned long txq_spinlock_flags;
+
+	struct txq_entry_t *txq_head;
+	struct txq_entry_t *txq_tail;
+	int txq_entries;
+	int txq_exit;
+
+	struct rxq_entry_t *rxq_head;
+	struct rxq_entry_t *rxq_tail;
+	int rxq_entries;
+	int rxq_exit;
+
 	unsigned char eth_src_address[NUM_CONCURRENT_IFC][6];
 
 	const struct firmware *firmware;
 
-#ifdef WILC_SDIO
-	struct sdio_func *wilc_sdio_func;
-#else
-	struct spi_device *wilc_spidev;
-#endif
+	struct device *dev;
 };
 
-typedef struct {
-	u8 u8IfIdx;
-	u8 iftype;
-	int monitor_flag;
-	int mac_opened;
-	struct_frame_reg g_struct_frame_reg[num_reg_frame];
-	struct net_device *wilc_netdev;
-	struct net_device_stats netstats;
-	struct wilc *wilc;
-} perInterface_wlan_t;
-
 struct WILC_WFI_mon_priv {
 	struct net_device *real_ndev;
 };
 
-extern struct wilc *g_linux_wlan;
-extern struct net_device *WILC_WFI_devs[];
-void frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset);
-void linux_wlan_mac_indicate(struct wilc *wilc, int flag);
-void linux_wlan_rx_complete(void);
-void linux_wlan_dbg(u8 *buff);
-int linux_wlan_lock_timeout(void *vp, u32 timeout);
-void wl_wlan_cleanup(void);
-int wilc_netdev_init(struct wilc **wilc);
+int wilc1000_wlan_init(struct net_device *dev, struct wilc_vif *vif);
+
+void wilc_frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset);
+void wilc_mac_indicate(struct wilc *wilc, int flag);
+void wilc_rx_complete(struct wilc *wilc);
+void wilc_dbg(u8 *buff);
+
+int wilc_lock_timeout(struct wilc *wilc, void *, u32 timeout);
+void wilc_netdev_cleanup(struct wilc *wilc);
+int wilc_netdev_init(struct wilc **wilc, struct device *, int io_type, int gpio,
+		     const struct wilc_hif_func *ops);
 void wilc1000_wlan_deinit(struct net_device *dev);
 void WILC_WFI_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size);
-u16 Set_machw_change_vir_if(struct net_device *dev, bool bValue);
+u16 wilc_set_machw_change_vir_if(struct net_device *dev, bool value);
+int wilc_wlan_get_firmware(struct net_device *dev);
+int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid);
+
 #endif
diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c
index c02665747705..83af51bb83e8 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -1,95 +1,15 @@
-/* ////////////////////////////////////////////////////////////////////////// */
-/*  */
-/* Copyright (c) Atmel Corporation.  All rights reserved. */
-/*  */
-/* Module Name:  wilc_wlan.c */
-/*  */
-/*  */
-/* //////////////////////////////////////////////////////////////////////////// */
-
 #include "wilc_wlan_if.h"
+#include "wilc_wlan.h"
 #include "wilc_wfi_netdevice.h"
 #include "wilc_wlan_cfg.h"
 
-/********************************************
- *
- *      Global
- *
- ********************************************/
-extern wilc_hif_func_t hif_sdio;
-extern wilc_hif_func_t hif_spi;
-u32 wilc_get_chipid(u8 update);
-
-
-
-typedef struct {
-	int quit;
-
-	/**
-	 *      input interface functions
-	 **/
-	wilc_wlan_io_func_t io_func;
-
-	/**
-	 *      host interface functions
-	 **/
-	wilc_hif_func_t hif_func;
-
-	/**
-	 *      configuration interface functions
-	 **/
-	int cfg_frame_in_use;
-	wilc_cfg_frame_t cfg_frame;
-	u32 cfg_frame_offset;
-	int cfg_seq_no;
-
-	/**
-	 *      RX buffer
-	 **/
-	#ifdef MEMORY_STATIC
-	u8 *rx_buffer;
-	u32 rx_buffer_offset;
-	#endif
-	/**
-	 *      TX buffer
-	 **/
-	u8 *tx_buffer;
-	u32 tx_buffer_offset;
-
-	/**
-	 *      TX queue
-	 **/
-
-	unsigned long txq_spinlock_flags;
-
-	struct txq_entry_t *txq_head;
-	struct txq_entry_t *txq_tail;
-	int txq_entries;
-	int txq_exit;
-
-	/**
-	 *      RX queue
-	 **/
-	struct rxq_entry_t *rxq_head;
-	struct rxq_entry_t *rxq_tail;
-	int rxq_entries;
-	int rxq_exit;
-
-
-} wilc_wlan_dev_t;
-
-static wilc_wlan_dev_t g_wlan;
-
-static inline void chip_allow_sleep(void);
-static inline void chip_wakeup(void);
-/********************************************
- *
- *      Debug
- *
- ********************************************/
-
+#ifdef WILC_OPTIMIZE_SLEEP_INT
+static inline void chip_allow_sleep(struct wilc *wilc);
+#endif
+static inline void chip_wakeup(struct wilc *wilc);
 static u32 dbgflag = N_INIT | N_ERR | N_INTR | N_TXQ | N_RXQ;
 
+/* FIXME: replace with dev_debug() */
 static void wilc_debug(u32 flag, char *fmt, ...)
 {
 	char buf[256];
@@ -100,244 +20,214 @@ static void wilc_debug(u32 flag, char *fmt, ...)
 		vsprintf(buf, fmt, args);
 		va_end(args);
 
-		linux_wlan_dbg(buf);
+		wilc_dbg(buf);
 	}
 }
 
-static CHIP_PS_STATE_T genuChipPSstate = CHIP_WAKEDUP;
+static CHIP_PS_STATE_T chip_ps_state = CHIP_WAKEDUP;
 
-/*acquire_bus() and release_bus() are made static inline functions*/
-/*as a temporary workaround to fix a problem of receiving*/
-/*unknown interrupt from FW*/
-static inline void acquire_bus(BUS_ACQUIRE_T acquire)
+static inline void acquire_bus(struct wilc *wilc, BUS_ACQUIRE_T acquire)
 {
-
-	mutex_lock(&g_linux_wlan->hif_cs);
+	mutex_lock(&wilc->hif_cs);
 	#ifndef WILC_OPTIMIZE_SLEEP_INT
-	if (genuChipPSstate != CHIP_WAKEDUP)
+	if (chip_ps_state != CHIP_WAKEDUP)
 	#endif
 	{
 		if (acquire == ACQUIRE_AND_WAKEUP)
-			chip_wakeup();
+			chip_wakeup(wilc);
 	}
-
 }
-static inline void release_bus(BUS_RELEASE_T release)
+
+static inline void release_bus(struct wilc *wilc, BUS_RELEASE_T release)
 {
 	#ifdef WILC_OPTIMIZE_SLEEP_INT
 	if (release == RELEASE_ALLOW_SLEEP)
-		chip_allow_sleep();
+		chip_allow_sleep(wilc);
 	#endif
-	mutex_unlock(&g_linux_wlan->hif_cs);
+	mutex_unlock(&wilc->hif_cs);
 }
-/********************************************
- *
- *      Queue
- *
- ********************************************/
 
+#ifdef TCP_ACK_FILTER
 static void wilc_wlan_txq_remove(struct txq_entry_t *tqe)
 {
 
-	wilc_wlan_dev_t *p = &g_wlan;
-	if (tqe == p->txq_head)	{
-
-		p->txq_head = tqe->next;
-		if (p->txq_head)
-			p->txq_head->prev = NULL;
-
-
-	} else if (tqe == p->txq_tail)	    {
-		p->txq_tail = (tqe->prev);
-		if (p->txq_tail)
-			p->txq_tail->next = NULL;
+	if (tqe == wilc->txq_head) {
+		wilc->txq_head = tqe->next;
+		if (wilc->txq_head)
+			wilc->txq_head->prev = NULL;
+	} else if (tqe == wilc->txq_tail) {
+		wilc->txq_tail = (tqe->prev);
+		if (wilc->txq_tail)
+			wilc->txq_tail->next = NULL;
 	} else {
 		tqe->prev->next = tqe->next;
 		tqe->next->prev = tqe->prev;
 	}
-	p->txq_entries -= 1;
-
+	wilc->txq_entries -= 1;
 }
+#endif
 
-static struct txq_entry_t *wilc_wlan_txq_remove_from_head(void)
+static struct txq_entry_t *
+wilc_wlan_txq_remove_from_head(struct net_device *dev)
 {
 	struct txq_entry_t *tqe;
-	wilc_wlan_dev_t *p = &g_wlan;
 	unsigned long flags;
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 
-	spin_lock_irqsave(&g_linux_wlan->txq_spinlock, flags);
-	if (p->txq_head) {
-		tqe = p->txq_head;
-		p->txq_head = tqe->next;
-		if (p->txq_head)
-			p->txq_head->prev = NULL;
-
-		p->txq_entries -= 1;
-
-
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
+	spin_lock_irqsave(&wilc->txq_spinlock, flags);
+	if (wilc->txq_head) {
+		tqe = wilc->txq_head;
+		wilc->txq_head = tqe->next;
+		if (wilc->txq_head)
+			wilc->txq_head->prev = NULL;
 
+		wilc->txq_entries -= 1;
 	} else {
 		tqe = NULL;
 	}
-	spin_unlock_irqrestore(&g_linux_wlan->txq_spinlock, flags);
+	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 	return tqe;
 }
 
-static void wilc_wlan_txq_add_to_tail(struct txq_entry_t *tqe)
+static void wilc_wlan_txq_add_to_tail(struct net_device *dev,
+				      struct txq_entry_t *tqe)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	unsigned long flags;
-	spin_lock_irqsave(&g_linux_wlan->txq_spinlock, flags);
+	struct wilc_vif *vif;
+	struct wilc *wilc;
+
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	if (p->txq_head == NULL) {
+	spin_lock_irqsave(&wilc->txq_spinlock, flags);
+
+	if (!wilc->txq_head) {
 		tqe->next = NULL;
 		tqe->prev = NULL;
-		p->txq_head = tqe;
-		p->txq_tail = tqe;
+		wilc->txq_head = tqe;
+		wilc->txq_tail = tqe;
 	} else {
 		tqe->next = NULL;
-		tqe->prev = p->txq_tail;
-		p->txq_tail->next = tqe;
-		p->txq_tail = tqe;
+		tqe->prev = wilc->txq_tail;
+		wilc->txq_tail->next = tqe;
+		wilc->txq_tail = tqe;
 	}
-	p->txq_entries += 1;
-	PRINT_D(TX_DBG, "Number of entries in TxQ = %d\n", p->txq_entries);
+	wilc->txq_entries += 1;
+	PRINT_D(TX_DBG, "Number of entries in TxQ = %d\n", wilc->txq_entries);
 
-	spin_unlock_irqrestore(&g_linux_wlan->txq_spinlock, flags);
+	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 
-	/**
-	 *      wake up TX queue
-	 **/
 	PRINT_D(TX_DBG, "Wake the txq_handling\n");
 
-	up(&g_linux_wlan->txq_event);
+	up(&wilc->txq_event);
 }
 
-static int wilc_wlan_txq_add_to_head(struct txq_entry_t *tqe)
+static int wilc_wlan_txq_add_to_head(struct wilc *wilc, struct txq_entry_t *tqe)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	unsigned long flags;
-	if (linux_wlan_lock_timeout(&g_linux_wlan->txq_add_to_head_cs,
+	if (wilc_lock_timeout(wilc, &wilc->txq_add_to_head_cs,
 				    CFG_PKTS_TIMEOUT))
 		return -1;
 
-	spin_lock_irqsave(&g_linux_wlan->txq_spinlock, flags);
+	spin_lock_irqsave(&wilc->txq_spinlock, flags);
 
-	if (p->txq_head == NULL) {
+	if (!wilc->txq_head) {
 		tqe->next = NULL;
 		tqe->prev = NULL;
-		p->txq_head = tqe;
-		p->txq_tail = tqe;
+		wilc->txq_head = tqe;
+		wilc->txq_tail = tqe;
 	} else {
-		tqe->next = p->txq_head;
+		tqe->next = wilc->txq_head;
 		tqe->prev = NULL;
-		p->txq_head->prev = tqe;
-		p->txq_head = tqe;
+		wilc->txq_head->prev = tqe;
+		wilc->txq_head = tqe;
 	}
-	p->txq_entries += 1;
-	PRINT_D(TX_DBG, "Number of entries in TxQ = %d\n", p->txq_entries);
+	wilc->txq_entries += 1;
+	PRINT_D(TX_DBG, "Number of entries in TxQ = %d\n", wilc->txq_entries);
 
-	spin_unlock_irqrestore(&g_linux_wlan->txq_spinlock, flags);
-	up(&g_linux_wlan->txq_add_to_head_cs);
-
-
-	/**
-	 *      wake up TX queue
-	 **/
-	up(&g_linux_wlan->txq_event);
+	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
+	up(&wilc->txq_add_to_head_cs);
+	up(&wilc->txq_event);
 	PRINT_D(TX_DBG, "Wake up the txq_handler\n");
 
 	return 0;
-
 }
 
-u32 Statisitcs_totalAcks = 0, Statisitcs_DroppedAcks = 0;
-
 #ifdef	TCP_ACK_FILTER
-struct Ack_session_info;
-struct Ack_session_info {
-	u32 Ack_seq_num;
-	u32 Bigger_Ack_num;
+struct ack_session_info;
+struct ack_session_info {
+	u32 seq_num;
+	u32 bigger_ack_num;
 	u16 src_port;
 	u16 dst_port;
 	u16 status;
 };
 
-typedef struct {
+struct pending_acks_info {
 	u32 ack_num;
-	u32 Session_index;
+	u32 session_index;
 	struct txq_entry_t  *txqe;
-} Pending_Acks_info_t /*Ack_info_t*/;
-
-
-
+};
 
-struct Ack_session_info *Free_head;
-struct Ack_session_info *Alloc_head;
 
 #define NOT_TCP_ACK			(-1)
 
 #define MAX_TCP_SESSION		25
 #define MAX_PENDING_ACKS		256
-struct Ack_session_info Acks_keep_track_info[2 * MAX_TCP_SESSION];
-Pending_Acks_info_t Pending_Acks_info[MAX_PENDING_ACKS];
-
-u32 PendingAcks_arrBase;
-u32 Opened_TCP_session;
-u32 Pending_Acks;
-
+static struct ack_session_info ack_session_info[2 * MAX_TCP_SESSION];
+static struct pending_acks_info pending_acks_info[MAX_PENDING_ACKS];
 
+static u32 pending_base;
+static u32 tcp_session;
+static u32 pending_acks;
 
-static inline int Init_TCP_tracking(void)
+static inline int init_tcp_tracking(void)
 {
-
 	return 0;
-
 }
-static inline int add_TCP_track_session(u32 src_prt, u32 dst_prt, u32 seq)
+
+static inline int add_tcp_session(u32 src_prt, u32 dst_prt, u32 seq)
 {
-	Acks_keep_track_info[Opened_TCP_session].Ack_seq_num = seq;
-	Acks_keep_track_info[Opened_TCP_session].Bigger_Ack_num = 0;
-	Acks_keep_track_info[Opened_TCP_session].src_port = src_prt;
-	Acks_keep_track_info[Opened_TCP_session].dst_port = dst_prt;
-	Opened_TCP_session++;
+	ack_session_info[tcp_session].seq_num = seq;
+	ack_session_info[tcp_session].bigger_ack_num = 0;
+	ack_session_info[tcp_session].src_port = src_prt;
+	ack_session_info[tcp_session].dst_port = dst_prt;
+	tcp_session++;
 
-	PRINT_D(TCP_ENH, "TCP Session %d to Ack %d\n", Opened_TCP_session, seq);
+	PRINT_D(TCP_ENH, "TCP Session %d to Ack %d\n", tcp_session, seq);
 	return 0;
 }
 
-static inline int Update_TCP_track_session(u32 index, u32 Ack)
+static inline int update_tcp_session(u32 index, u32 ack)
 {
-
-	if (Ack > Acks_keep_track_info[index].Bigger_Ack_num)
-		Acks_keep_track_info[index].Bigger_Ack_num = Ack;
+	if (ack > ack_session_info[index].bigger_ack_num)
+		ack_session_info[index].bigger_ack_num = ack;
 	return 0;
-
 }
-static inline int add_TCP_Pending_Ack(u32 Ack, u32 Session_index, struct txq_entry_t  *txqe)
-{
-	Statisitcs_totalAcks++;
-	if (Pending_Acks < MAX_PENDING_ACKS) {
-		Pending_Acks_info[PendingAcks_arrBase + Pending_Acks].ack_num = Ack;
-		Pending_Acks_info[PendingAcks_arrBase + Pending_Acks].txqe = txqe;
-		Pending_Acks_info[PendingAcks_arrBase + Pending_Acks].Session_index = Session_index;
-		txqe->tcp_PendingAck_index = PendingAcks_arrBase + Pending_Acks;
-		Pending_Acks++;
-
-	} else {
 
+static inline int add_tcp_pending_ack(u32 ack, u32 session_index,
+				      struct txq_entry_t *txqe)
+{
+	if (pending_acks < MAX_PENDING_ACKS) {
+		pending_acks_info[pending_base + pending_acks].ack_num = ack;
+		pending_acks_info[pending_base + pending_acks].txqe = txqe;
+		pending_acks_info[pending_base + pending_acks].session_index = session_index;
+		txqe->tcp_pending_ack_idx = pending_base + pending_acks;
+		pending_acks++;
 	}
 	return 0;
 }
-static inline int remove_TCP_related(void)
+static inline int remove_TCP_related(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	unsigned long flags;
 
-	spin_lock_irqsave(&g_linux_wlan->txq_spinlock, flags);
+	spin_lock_irqsave(&wilc->txq_spinlock, flags);
 
-	spin_unlock_irqrestore(&g_linux_wlan->txq_spinlock, flags);
+	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 	return 0;
 }
 
@@ -348,54 +238,55 @@ static inline int tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
 	u8 *buffer = tqe->buffer;
 	unsigned short h_proto;
 	int i;
-	wilc_wlan_dev_t *p = &g_wlan;
 	unsigned long flags;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	spin_lock_irqsave(&wilc->txq_spinlock, flags);
 
 	eth_hdr_ptr = &buffer[0];
 	h_proto = ntohs(*((unsigned short *)&eth_hdr_ptr[12]));
-	if (h_proto == 0x0800) { /* IP */
+	if (h_proto == 0x0800) {
 		u8 *ip_hdr_ptr;
 		u8 protocol;
 
 		ip_hdr_ptr = &buffer[ETHERNET_HDR_LEN];
 		protocol = ip_hdr_ptr[9];
 
-
 		if (protocol == 0x06) {
 			u8 *tcp_hdr_ptr;
-			u32 IHL, Total_Length, Data_offset;
+			u32 IHL, total_length, data_offset;
 
 			tcp_hdr_ptr = &ip_hdr_ptr[IP_HDR_LEN];
 			IHL = (ip_hdr_ptr[0] & 0xf) << 2;
-			Total_Length = (((u32)ip_hdr_ptr[2]) << 8) + ((u32)ip_hdr_ptr[3]);
-			Data_offset = (((u32)tcp_hdr_ptr[12] & 0xf0) >> 2);
-			if (Total_Length == (IHL + Data_offset)) { /*we want to recognize the clear Acks(packet only carry Ack infos not with data) so data size must be equal zero*/
-				u32 seq_no, Ack_no;
-
-				seq_no	= (((u32)tcp_hdr_ptr[4]) << 24) + (((u32)tcp_hdr_ptr[5]) << 16) + (((u32)tcp_hdr_ptr[6]) << 8) + ((u32)tcp_hdr_ptr[7]);
-
-				Ack_no	= (((u32)tcp_hdr_ptr[8]) << 24) + (((u32)tcp_hdr_ptr[9]) << 16) + (((u32)tcp_hdr_ptr[10]) << 8) + ((u32)tcp_hdr_ptr[11]);
-
-
-				for (i = 0; i < Opened_TCP_session; i++) {
-					if (Acks_keep_track_info[i].Ack_seq_num == seq_no) {
-						Update_TCP_track_session(i, Ack_no);
+			total_length = ((u32)ip_hdr_ptr[2] << 8) +
+					(u32)ip_hdr_ptr[3];
+			data_offset = ((u32)tcp_hdr_ptr[12] & 0xf0) >> 2;
+			if (total_length == (IHL + data_offset)) {
+				u32 seq_no, ack_no;
+
+				seq_no = ((u32)tcp_hdr_ptr[4] << 24) +
+					 ((u32)tcp_hdr_ptr[5] << 16) +
+					 ((u32)tcp_hdr_ptr[6] << 8) +
+					 (u32)tcp_hdr_ptr[7];
+
+				ack_no = ((u32)tcp_hdr_ptr[8] << 24) +
+					 ((u32)tcp_hdr_ptr[9] << 16) +
+					 ((u32)tcp_hdr_ptr[10] << 8) +
+					 (u32)tcp_hdr_ptr[11];
+
+				for (i = 0; i < tcp_session; i++) {
+					if (ack_session_info[i].seq_num == seq_no) {
+						update_tcp_session(i, ack_no);
 						break;
 					}
 				}
-				if (i == Opened_TCP_session)
-					add_TCP_track_session(0, 0, seq_no);
-
-				add_TCP_Pending_Ack(Ack_no, i, tqe);
-
+				if (i == tcp_session)
+					add_tcp_session(0, 0, seq_no);
 
+				add_tcp_pending_ack(ack_no, i, tqe);
 			}
 
 		} else {
@@ -408,83 +299,81 @@ static inline int tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
 	return ret;
 }
 
-
 static int wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
 {
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 	u32 i = 0;
-	u32 Dropped = 0;
-	wilc_wlan_dev_t *p = &g_wlan;
+	u32 dropped = 0;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	spin_lock_irqsave(&wilc->txq_spinlock, p->txq_spinlock_flags);
-	for (i = PendingAcks_arrBase; i < (PendingAcks_arrBase + Pending_Acks); i++) {
-		if (Pending_Acks_info[i].ack_num < Acks_keep_track_info[Pending_Acks_info[i].Session_index].Bigger_Ack_num) {
+	spin_lock_irqsave(&wilc->txq_spinlock, wilc->txq_spinlock_flags);
+	for (i = pending_base; i < (pending_base + pending_acks); i++) {
+		if (pending_acks_info[i].ack_num < ack_session_info[pending_acks_info[i].session_index].bigger_ack_num) {
 			struct txq_entry_t *tqe;
 
-			PRINT_D(TCP_ENH, "DROP ACK: %u\n", Pending_Acks_info[i].ack_num);
-			tqe = Pending_Acks_info[i].txqe;
+			PRINT_D(TCP_ENH, "DROP ACK: %u\n",
+				pending_acks_info[i].ack_num);
+			tqe = pending_acks_info[i].txqe;
 			if (tqe) {
 				wilc_wlan_txq_remove(tqe);
-				Statisitcs_DroppedAcks++;
-				tqe->status = 1;                                /* mark the packet send */
+				tqe->status = 1;
 				if (tqe->tx_complete_func)
-					tqe->tx_complete_func(tqe->priv, tqe->status);
+					tqe->tx_complete_func(tqe->priv,
+							      tqe->status);
 				kfree(tqe);
-				Dropped++;
+				dropped++;
 			}
 		}
 	}
-	Pending_Acks = 0;
-	Opened_TCP_session = 0;
+	pending_acks = 0;
+	tcp_session = 0;
 
-	if (PendingAcks_arrBase == 0)
-		PendingAcks_arrBase = MAX_TCP_SESSION;
+	if (pending_base == 0)
+		pending_base = MAX_TCP_SESSION;
 	else
-		PendingAcks_arrBase = 0;
-
+		pending_base = 0;
 
-	spin_unlock_irqrestore(&wilc->txq_spinlock, p->txq_spinlock_flags);
+	spin_unlock_irqrestore(&wilc->txq_spinlock, wilc->txq_spinlock_flags);
 
-	while (Dropped > 0) {
-		/*consume the semaphore count of the removed packet*/
-		linux_wlan_lock_timeout(&wilc->txq_event, 1);
-		Dropped--;
+	while (dropped > 0) {
+		wilc_lock_timeout(wilc, &wilc->txq_event, 1);
+		dropped--;
 	}
 
 	return 1;
 }
 #endif
 
-bool EnableTCPAckFilter = false;
+static bool enabled = false;
 
-void Enable_TCP_ACK_Filter(bool value)
+void wilc_enable_tcp_ack_filter(bool value)
 {
-	EnableTCPAckFilter = value;
+	enabled = value;
 }
 
-bool is_TCP_ACK_Filter_Enabled(void)
+#ifdef TCP_ACK_FILTER
+static bool is_tcp_ack_filter_enabled(void)
 {
-	return EnableTCPAckFilter;
+	return enabled;
 }
+#endif
 
-static int wilc_wlan_txq_add_cfg_pkt(u8 *buffer, u32 buffer_size)
+static int wilc_wlan_txq_add_cfg_pkt(struct wilc *wilc, u8 *buffer, u32 buffer_size)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	struct txq_entry_t *tqe;
 
 	PRINT_D(TX_DBG, "Adding config packet ...\n");
-	if (p->quit) {
+	if (wilc->quit) {
 		PRINT_D(TX_DBG, "Return due to clear function\n");
-		up(&g_linux_wlan->cfg_event);
+		up(&wilc->cfg_event);
 		return 0;
 	}
 
-	tqe = kmalloc(sizeof(struct txq_entry_t), GFP_ATOMIC);
-	if (tqe == NULL) {
+	tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
+	if (!tqe) {
 		PRINT_ER("Failed to allocate memory\n");
 		return 0;
 	}
@@ -495,14 +384,11 @@ static int wilc_wlan_txq_add_cfg_pkt(u8 *buffer, u32 buffer_size)
 	tqe->tx_complete_func = NULL;
 	tqe->priv = NULL;
 #ifdef TCP_ACK_FILTER
-	tqe->tcp_PendingAck_index = NOT_TCP_ACK;
+	tqe->tcp_pending_ack_idx = NOT_TCP_ACK;
 #endif
-	/**
-	 *      Configuration packet always at the front
-	 **/
 	PRINT_D(TX_DBG, "Adding the config packet at the Queue tail\n");
 
-	if (wilc_wlan_txq_add_to_head(tqe))
+	if (wilc_wlan_txq_add_to_head(wilc, tqe))
 		return 0;
 	return 1;
 }
@@ -510,15 +396,18 @@ static int wilc_wlan_txq_add_cfg_pkt(u8 *buffer, u32 buffer_size)
 int wilc_wlan_txq_add_net_pkt(struct net_device *dev, void *priv, u8 *buffer,
 			      u32 buffer_size, wilc_tx_complete_func_t func)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	struct txq_entry_t *tqe;
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc;
+
+	wilc = vif->wilc;
 
-	if (p->quit)
+	if (wilc->quit)
 		return 0;
 
-	tqe = kmalloc(sizeof(struct txq_entry_t), GFP_ATOMIC);
+	tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
 
-	if (tqe == NULL)
+	if (!tqe)
 		return 0;
 	tqe->type = WILC_NET_PKT;
 	tqe->buffer = buffer;
@@ -528,27 +417,29 @@ int wilc_wlan_txq_add_net_pkt(struct net_device *dev, void *priv, u8 *buffer,
 
 	PRINT_D(TX_DBG, "Adding mgmt packet at the Queue tail\n");
 #ifdef TCP_ACK_FILTER
-	tqe->tcp_PendingAck_index = NOT_TCP_ACK;
-	if (is_TCP_ACK_Filter_Enabled())
+	tqe->tcp_pending_ack_idx = NOT_TCP_ACK;
+	if (is_tcp_ack_filter_enabled())
 		tcp_process(dev, tqe);
 #endif
-	wilc_wlan_txq_add_to_tail(tqe);
-	/*return number of itemes in the queue*/
-	return p->txq_entries;
+	wilc_wlan_txq_add_to_tail(dev, tqe);
+	return wilc->txq_entries;
 }
 
-int wilc_wlan_txq_add_mgmt_pkt(void *priv, u8 *buffer, u32 buffer_size, wilc_tx_complete_func_t func)
+int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
+			       u32 buffer_size, wilc_tx_complete_func_t func)
 {
-
-	wilc_wlan_dev_t *p = &g_wlan;
 	struct txq_entry_t *tqe;
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc;
+
+	wilc = vif->wilc;
 
-	if (p->quit)
+	if (wilc->quit)
 		return 0;
 
-	tqe = kmalloc(sizeof(struct txq_entry_t), GFP_KERNEL);
+	tqe = kmalloc(sizeof(*tqe), GFP_KERNEL);
 
-	if (tqe == NULL)
+	if (!tqe)
 		return 0;
 	tqe->type = WILC_MGMT_PKT;
 	tqe->buffer = buffer;
@@ -556,25 +447,23 @@ int wilc_wlan_txq_add_mgmt_pkt(void *priv, u8 *buffer, u32 buffer_size, wilc_tx_
 	tqe->tx_complete_func = func;
 	tqe->priv = priv;
 #ifdef TCP_ACK_FILTER
-	tqe->tcp_PendingAck_index = NOT_TCP_ACK;
+	tqe->tcp_pending_ack_idx = NOT_TCP_ACK;
 #endif
 	PRINT_D(TX_DBG, "Adding Network packet at the Queue tail\n");
-	wilc_wlan_txq_add_to_tail(tqe);
+	wilc_wlan_txq_add_to_tail(dev, tqe);
 	return 1;
 }
 
-static struct txq_entry_t *wilc_wlan_txq_get_first(void)
+static struct txq_entry_t *wilc_wlan_txq_get_first(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	struct txq_entry_t *tqe;
 	unsigned long flags;
 
-	spin_lock_irqsave(&g_linux_wlan->txq_spinlock, flags);
-
-	tqe = p->txq_head;
+	spin_lock_irqsave(&wilc->txq_spinlock, flags);
 
-	spin_unlock_irqrestore(&g_linux_wlan->txq_spinlock, flags);
+	tqe = wilc->txq_head;
 
+	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 
 	return tqe;
 }
@@ -583,52 +472,50 @@ static struct txq_entry_t *wilc_wlan_txq_get_next(struct wilc *wilc,
 						  struct txq_entry_t *tqe)
 {
 	unsigned long flags;
+
 	spin_lock_irqsave(&wilc->txq_spinlock, flags);
 
 	tqe = tqe->next;
 	spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
 
-
 	return tqe;
 }
 
 static int wilc_wlan_rxq_add(struct wilc *wilc, struct rxq_entry_t *rqe)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 
-	if (p->quit)
+	if (wilc->quit)
 		return 0;
 
 	mutex_lock(&wilc->rxq_cs);
-	if (p->rxq_head == NULL) {
+	if (!wilc->rxq_head) {
 		PRINT_D(RX_DBG, "Add to Queue head\n");
 		rqe->next = NULL;
-		p->rxq_head = rqe;
-		p->rxq_tail = rqe;
+		wilc->rxq_head = rqe;
+		wilc->rxq_tail = rqe;
 	} else {
 		PRINT_D(RX_DBG, "Add to Queue tail\n");
-		p->rxq_tail->next = rqe;
+		wilc->rxq_tail->next = rqe;
 		rqe->next = NULL;
-		p->rxq_tail = rqe;
+		wilc->rxq_tail = rqe;
 	}
-	p->rxq_entries += 1;
-	PRINT_D(RX_DBG, "Number of queue entries: %d\n", p->rxq_entries);
+	wilc->rxq_entries += 1;
+	PRINT_D(RX_DBG, "Number of queue entries: %d\n", wilc->rxq_entries);
 	mutex_unlock(&wilc->rxq_cs);
-	return p->rxq_entries;
+	return wilc->rxq_entries;
 }
 
 static struct rxq_entry_t *wilc_wlan_rxq_remove(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 
 	PRINT_D(RX_DBG, "Getting rxQ element\n");
-	if (p->rxq_head) {
+	if (wilc->rxq_head) {
 		struct rxq_entry_t *rqe;
 
 		mutex_lock(&wilc->rxq_cs);
-		rqe = p->rxq_head;
-		p->rxq_head = p->rxq_head->next;
-		p->rxq_entries -= 1;
+		rqe = wilc->rxq_head;
+		wilc->rxq_head = wilc->rxq_head->next;
+		wilc->rxq_entries -= 1;
 		PRINT_D(RX_DBG, "RXQ entries decreased\n");
 		mutex_unlock(&wilc->rxq_cs);
 		return rqe;
@@ -637,197 +524,151 @@ static struct rxq_entry_t *wilc_wlan_rxq_remove(struct wilc *wilc)
 	return NULL;
 }
 
-
-/********************************************
- *
- *      Power Save handle functions
- *
- ********************************************/
-
-
-
 #ifdef WILC_OPTIMIZE_SLEEP_INT
 
-static inline void chip_allow_sleep(void)
+static inline void chip_allow_sleep(struct wilc *wilc)
 {
 	u32 reg = 0;
 
-	/* Clear bit 1 */
-	g_wlan.hif_func.hif_read_reg(0xf0, &reg);
+	wilc->hif_func->hif_read_reg(wilc, 0xf0, &reg);
 
-	g_wlan.hif_func.hif_write_reg(0xf0, reg & ~BIT(0));
+	wilc->hif_func->hif_write_reg(wilc, 0xf0, reg & ~BIT(0));
 }
 
-static inline void chip_wakeup(void)
+static inline void chip_wakeup(struct wilc *wilc)
 {
 	u32 reg, clk_status_reg, trials = 0;
 	u32 sleep_time;
 
-	if ((g_wlan.io_func.io_type & 0x1) == HIF_SPI) {
+	if ((wilc->io_type & 0x1) == HIF_SPI) {
 		do {
-			g_wlan.hif_func.hif_read_reg(1, &reg);
-			/* Set bit 1 */
-			g_wlan.hif_func.hif_write_reg(1, reg | BIT(1));
-
-			/* Clear bit 1*/
-			g_wlan.hif_func.hif_write_reg(1, reg & ~BIT(1));
+			wilc->hif_func->hif_read_reg(wilc, 1, &reg);
+			wilc->hif_func->hif_write_reg(wilc, 1, reg | BIT(1));
+			wilc->hif_func->hif_write_reg(wilc, 1, reg & ~BIT(1));
 
 			do {
-				/* Wait for the chip to stabilize*/
 				usleep_range(2 * 1000, 2 * 1000);
-				/* Make sure chip is awake. This is an extra step that can be removed */
-				/* later to avoid the bus access overhead */
-				if ((wilc_get_chipid(true) == 0))
+				if ((wilc_get_chipid(wilc, true) == 0))
 					wilc_debug(N_ERR, "Couldn't read chip id. Wake up failed\n");
 
-			} while ((wilc_get_chipid(true) == 0) && ((++trials % 3) == 0));
+			} while ((wilc_get_chipid(wilc, true) == 0) && ((++trials % 3) == 0));
 
-		} while (wilc_get_chipid(true) == 0);
-	} else if ((g_wlan.io_func.io_type & 0x1) == HIF_SDIO)	 {
-		g_wlan.hif_func.hif_read_reg(0xf0, &reg);
+		} while (wilc_get_chipid(wilc, true) == 0);
+	} else if ((wilc->io_type & 0x1) == HIF_SDIO)	 {
+		wilc->hif_func->hif_read_reg(wilc, 0xf0, &reg);
 		do {
-			/* Set bit 1 */
-			g_wlan.hif_func.hif_write_reg(0xf0, reg | BIT(0));
+			wilc->hif_func->hif_write_reg(wilc, 0xf0,
+						      reg | BIT(0));
+			wilc->hif_func->hif_read_reg(wilc, 0xf1,
+						     &clk_status_reg);
 
-			/* Check the clock status */
-			g_wlan.hif_func.hif_read_reg(0xf1, &clk_status_reg);
-
-			/* in case of clocks off, wait 2ms, and check it again. */
-			/* if still off, wait for another 2ms, for a total wait of 6ms. */
-			/* If still off, redo the wake up sequence */
 			while (((clk_status_reg & 0x1) == 0) && (((++trials) % 3) == 0)) {
-				/* Wait for the chip to stabilize*/
 				usleep_range(2 * 1000, 2 * 1000);
 
-				/* Make sure chip is awake. This is an extra step that can be removed */
-				/* later to avoid the bus access overhead */
-				g_wlan.hif_func.hif_read_reg(0xf1, &clk_status_reg);
+				wilc->hif_func->hif_read_reg(wilc, 0xf1,
+							     &clk_status_reg);
 
 				if ((clk_status_reg & 0x1) == 0)
 					wilc_debug(N_ERR, "clocks still OFF. Wake up failed\n");
-
 			}
-			/* in case of failure, Reset the wakeup bit to introduce a new edge on the next loop */
 			if ((clk_status_reg & 0x1) == 0) {
-				/* Reset bit 0 */
-				g_wlan.hif_func.hif_write_reg(0xf0, reg &
-							      (~BIT(0)));
+				wilc->hif_func->hif_write_reg(wilc, 0xf0,
+							      reg & (~BIT(0)));
 			}
 		} while ((clk_status_reg & 0x1) == 0);
 	}
 
-
-	if (genuChipPSstate == CHIP_SLEEPING_MANUAL) {
-		g_wlan.hif_func.hif_read_reg(0x1C0C, &reg);
+	if (chip_ps_state == CHIP_SLEEPING_MANUAL) {
+		wilc->hif_func->hif_read_reg(wilc, 0x1C0C, &reg);
 		reg &= ~BIT(0);
-		g_wlan.hif_func.hif_write_reg(0x1C0C, reg);
+		wilc->hif_func->hif_write_reg(wilc, 0x1C0C, reg);
 
-		if (wilc_get_chipid(false) >= 0x1002b0) {
-			/* Enable PALDO back right after wakeup */
+		if (wilc_get_chipid(wilc, false) >= 0x1002b0) {
 			u32 val32;
 
-			g_wlan.hif_func.hif_read_reg(0x1e1c, &val32);
+			wilc->hif_func->hif_read_reg(wilc, 0x1e1c, &val32);
 			val32 |= BIT(6);
-			g_wlan.hif_func.hif_write_reg(0x1e1c, val32);
+			wilc->hif_func->hif_write_reg(wilc, 0x1e1c, val32);
 
-			g_wlan.hif_func.hif_read_reg(0x1e9c, &val32);
+			wilc->hif_func->hif_read_reg(wilc, 0x1e9c, &val32);
 			val32 |= BIT(6);
-			g_wlan.hif_func.hif_write_reg(0x1e9c, val32);
+			wilc->hif_func->hif_write_reg(wilc, 0x1e9c, val32);
 		}
 	}
-	genuChipPSstate = CHIP_WAKEDUP;
+	chip_ps_state = CHIP_WAKEDUP;
 }
 #else
-static inline void chip_wakeup(void)
+static inline void chip_wakeup(struct wilc *wilc)
 {
 	u32 reg, trials = 0;
 
 	do {
-		if ((g_wlan.io_func.io_type & 0x1) == HIF_SPI) {
-			g_wlan.hif_func.hif_read_reg(1, &reg);
-			/* Make sure bit 1 is 0 before we start. */
-			g_wlan.hif_func.hif_write_reg(1, reg & ~BIT(1));
-			/* Set bit 1 */
-			g_wlan.hif_func.hif_write_reg(1, reg | BIT(1));
-			/* Clear bit 1*/
-			g_wlan.hif_func.hif_write_reg(1, reg  & ~BIT(1));
-		} else if ((g_wlan.io_func.io_type & 0x1) == HIF_SDIO)	 {
-			/* Make sure bit 0 is 0 before we start. */
-			g_wlan.hif_func.hif_read_reg(0xf0, &reg);
-			g_wlan.hif_func.hif_write_reg(0xf0, reg & ~BIT(0));
-			/* Set bit 1 */
-			g_wlan.hif_func.hif_write_reg(0xf0, reg | BIT(0));
-			/* Clear bit 1 */
-			g_wlan.hif_func.hif_write_reg(0xf0, reg  & ~BIT(0));
+		if ((wilc->io_type & 0x1) == HIF_SPI) {
+			wilc->hif_func->hif_read_reg(wilc, 1, &reg);
+			wilc->hif_func->hif_write_reg(wilc, 1, reg & ~BIT(1));
+			wilc->hif_func->hif_write_reg(wilc, 1, reg | BIT(1));
+			wilc->hif_func->hif_write_reg(wilc, 1, reg  & ~BIT(1));
+		} else if ((wilc->io_type & 0x1) == HIF_SDIO)	 {
+			wilc->hif_func->hif_read_reg(wilc, 0xf0, &reg);
+			wilc->hif_func->hif_write_reg(wilc, 0xf0,
+						      reg & ~BIT(0));
+			wilc->hif_func->hif_write_reg(wilc, 0xf0,
+						      reg | BIT(0));
+			wilc->hif_func->hif_write_reg(wilc, 0xf0,
+						      reg  & ~BIT(0));
 		}
 
 		do {
-			/* Wait for the chip to stabilize*/
 			mdelay(3);
 
-			/* Make sure chip is awake. This is an extra step that can be removed */
-			/* later to avoid the bus access overhead */
-			if ((wilc_get_chipid(true) == 0))
+			if ((wilc_get_chipid(wilc, true) == 0))
 				wilc_debug(N_ERR, "Couldn't read chip id. Wake up failed\n");
 
-		} while ((wilc_get_chipid(true) == 0) && ((++trials % 3) == 0));
+		} while ((wilc_get_chipid(wilc, true) == 0) && ((++trials % 3) == 0));
 
-	} while (wilc_get_chipid(true) == 0);
+	} while (wilc_get_chipid(wilc, true) == 0);
 
-	if (genuChipPSstate == CHIP_SLEEPING_MANUAL) {
-		g_wlan.hif_func.hif_read_reg(0x1C0C, &reg);
+	if (chip_ps_state == CHIP_SLEEPING_MANUAL) {
+		wilc->hif_func->hif_read_reg(wilc, 0x1C0C, &reg);
 		reg &= ~BIT(0);
-		g_wlan.hif_func.hif_write_reg(0x1C0C, reg);
+		wilc->hif_func->hif_write_reg(wilc, 0x1C0C, reg);
 
-		if (wilc_get_chipid(false) >= 0x1002b0) {
-			/* Enable PALDO back right after wakeup */
+		if (wilc_get_chipid(wilc, false) >= 0x1002b0) {
 			u32 val32;
 
-			g_wlan.hif_func.hif_read_reg(0x1e1c, &val32);
+			wilc->hif_func->hif_read_reg(wilc, 0x1e1c, &val32);
 			val32 |= BIT(6);
-			g_wlan.hif_func.hif_write_reg(0x1e1c, val32);
+			wilc->hif_func->hif_write_reg(wilc, 0x1e1c, val32);
 
-			g_wlan.hif_func.hif_read_reg(0x1e9c, &val32);
+			wilc->hif_func->hif_read_reg(wilc, 0x1e9c, &val32);
 			val32 |= BIT(6);
-			g_wlan.hif_func.hif_write_reg(0x1e9c, val32);
+			wilc->hif_func->hif_write_reg(wilc, 0x1e9c, val32);
 		}
 	}
-	genuChipPSstate = CHIP_WAKEDUP;
+	chip_ps_state = CHIP_WAKEDUP;
 }
 #endif
-void chip_sleep_manually(u32 u32SleepTime)
+void wilc_chip_sleep_manually(struct wilc *wilc)
 {
-	if (genuChipPSstate != CHIP_WAKEDUP) {
-		/* chip is already sleeping. Do nothing */
+	if (chip_ps_state != CHIP_WAKEDUP)
 		return;
-	}
-	acquire_bus(ACQUIRE_ONLY);
+	acquire_bus(wilc, ACQUIRE_ONLY);
 
 #ifdef WILC_OPTIMIZE_SLEEP_INT
-	chip_allow_sleep();
+	chip_allow_sleep(wilc);
 #endif
+	wilc->hif_func->hif_write_reg(wilc, 0x10a8, 1);
 
-	/* Trigger the manual sleep interrupt */
-	g_wlan.hif_func.hif_write_reg(0x10a8, 1);
-
-	genuChipPSstate = CHIP_SLEEPING_MANUAL;
-	release_bus(RELEASE_ONLY);
-
+	chip_ps_state = CHIP_SLEEPING_MANUAL;
+	release_bus(wilc, RELEASE_ONLY);
 }
 
-
-/********************************************
- *
- *      Tx, Rx queue handle functions
- *
- ********************************************/
-int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
+int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count)
 {
-	wilc_wlan_dev_t *p = (wilc_wlan_dev_t *)&g_wlan;
 	int i, entries = 0;
 	u32 sum;
 	u32 reg;
-	u8 *txb = p->tx_buffer;
+	u8 *txb;
 	u32 offset = 0;
 	int vmm_sz = 0;
 	struct txq_entry_t *tqe;
@@ -835,32 +676,29 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 	int counter;
 	int timeout;
 	u32 vmm_table[WILC_VMM_TBL_SIZE];
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	p->txq_exit = 0;
+	txb = wilc->tx_buffer;
+	wilc->txq_exit = 0;
 	do {
-		if (p->quit)
+		if (wilc->quit)
 			break;
 
-		linux_wlan_lock_timeout(&wilc->txq_add_to_head_cs,
+		wilc_lock_timeout(wilc, &wilc->txq_add_to_head_cs,
 					CFG_PKTS_TIMEOUT);
 #ifdef	TCP_ACK_FILTER
 		wilc_wlan_txq_filter_dup_tcp_ack(dev);
 #endif
-		/**
-		 *      build the vmm list
-		 **/
 		PRINT_D(TX_DBG, "Getting the head of the TxQ\n");
-		tqe = wilc_wlan_txq_get_first();
+		tqe = wilc_wlan_txq_get_first(wilc);
 		i = 0;
 		sum = 0;
 		do {
-			if ((tqe != NULL) && (i < (WILC_VMM_TBL_SIZE - 1)) /* reserve last entry to 0 */) {
-
+			if (tqe && (i < (WILC_VMM_TBL_SIZE - 1))) {
 				if (tqe->type == WILC_CFG_PKT)
 					vmm_sz = ETH_CONFIG_PKT_HDR_OFFSET;
 
@@ -872,23 +710,22 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 
 				vmm_sz += tqe->buffer_size;
 				PRINT_D(TX_DBG, "VMM Size before alignment = %d\n", vmm_sz);
-				if (vmm_sz & 0x3) {                                                                                                     /* has to be word aligned */
+				if (vmm_sz & 0x3)
 					vmm_sz = (vmm_sz + 4) & ~0x3;
-				}
+
 				if ((sum + vmm_sz) > LINUX_TX_SIZE)
 					break;
 
 				PRINT_D(TX_DBG, "VMM Size AFTER alignment = %d\n", vmm_sz);
-				vmm_table[i] = vmm_sz / 4;                                                                                /* table take the word size */
-				PRINT_D(TX_DBG, "VMMTable entry size = %d\n", vmm_table[i]);
+				vmm_table[i] = vmm_sz / 4;
+				PRINT_D(TX_DBG, "VMMTable entry size = %d\n",
+					vmm_table[i]);
 
 				if (tqe->type == WILC_CFG_PKT) {
 					vmm_table[i] |= BIT(10);
 					PRINT_D(TX_DBG, "VMMTable entry changed for CFG packet = %d\n", vmm_table[i]);
 				}
-#ifdef BIG_ENDIAN
-				vmm_table[i] = BYTE_SWAP(vmm_table[i]);
-#endif
+				vmm_table[i] = cpu_to_le32(vmm_table[i]);
 
 				i++;
 				sum += vmm_sz;
@@ -899,27 +736,24 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 			}
 		} while (1);
 
-		if (i == 0) {           /* nothing in the queue */
+		if (i == 0) {
 			PRINT_D(TX_DBG, "Nothing in TX-Q\n");
 			break;
 		} else {
 			PRINT_D(TX_DBG, "Mark the last entry in VMM table - number of previous entries = %d\n", i);
-			vmm_table[i] = 0x0;     /* mark the last element to 0 */
+			vmm_table[i] = 0x0;
 		}
-		acquire_bus(ACQUIRE_AND_WAKEUP);
+		acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 		counter = 0;
 		do {
-
-			ret = p->hif_func.hif_read_reg(WILC_HOST_TX_CTRL, &reg);
+			ret = wilc->hif_func->hif_read_reg(wilc, WILC_HOST_TX_CTRL,
+						       &reg);
 			if (!ret) {
 				wilc_debug(N_ERR, "[wilc txq]: fail can't read reg vmm_tbl_entry..\n");
 				break;
 			}
 
 			if ((reg & 0x1) == 0) {
-				/**
-				 *      write to vmm table
-				 **/
 				PRINT_D(TX_DBG, "Writing VMM table ... with Size = %d\n", ((i + 1) * 4));
 				break;
 			} else {
@@ -927,69 +761,52 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 				if (counter > 200) {
 					counter = 0;
 					PRINT_D(TX_DBG, "Looping in tx ctrl , forcce quit\n");
-					ret = p->hif_func.hif_write_reg(WILC_HOST_TX_CTRL, 0);
+					ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, 0);
 					break;
 				}
-				/**
-				 *      wait for vmm table is ready
-				 **/
 				PRINT_WRN(GENERIC_DBG, "[wilc txq]: warn, vmm table not clear yet, wait...\n");
-				release_bus(RELEASE_ALLOW_SLEEP);
+				release_bus(wilc, RELEASE_ALLOW_SLEEP);
 				usleep_range(3000, 3000);
-				acquire_bus(ACQUIRE_AND_WAKEUP);
+				acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 			}
-		} while (!p->quit);
+		} while (!wilc->quit);
 
 		if (!ret)
 			goto _end_;
 
 		timeout = 200;
 		do {
-
-			/**
-			 * write to vmm table
-			 **/
-			ret = p->hif_func.hif_block_tx(WILC_VMM_TBL_RX_SHADOW_BASE, (u8 *)vmm_table, ((i + 1) * 4));
+			ret = wilc->hif_func->hif_block_tx(wilc, WILC_VMM_TBL_RX_SHADOW_BASE, (u8 *)vmm_table, ((i + 1) * 4));
 			if (!ret) {
 				wilc_debug(N_ERR, "ERR block TX of VMM table.\n");
 				break;
 			}
 
-
-			/**
-			 * interrupt firmware
-			 **/
-			ret = p->hif_func.hif_write_reg(WILC_HOST_VMM_CTL, 0x2);
+			ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_VMM_CTL,
+							0x2);
 			if (!ret) {
 				wilc_debug(N_ERR, "[wilc txq]: fail can't write reg host_vmm_ctl..\n");
 				break;
 			}
 
-			/**
-			 *      wait for confirm...
-			 **/
-
 			do {
-				ret = p->hif_func.hif_read_reg(WILC_HOST_VMM_CTL, &reg);
+				ret = wilc->hif_func->hif_read_reg(wilc, WILC_HOST_VMM_CTL, &reg);
 				if (!ret) {
 					wilc_debug(N_ERR, "[wilc txq]: fail can't read reg host_vmm_ctl..\n");
 					break;
 				}
 				if ((reg >> 2) & 0x1) {
-					/**
-					 *      Get the entries
-					 **/
 					entries = ((reg >> 3) & 0x3f);
 					break;
 				} else {
-					release_bus(RELEASE_ALLOW_SLEEP);
+					release_bus(wilc, RELEASE_ALLOW_SLEEP);
 					usleep_range(3000, 3000);
-					acquire_bus(ACQUIRE_AND_WAKEUP);
+					acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 					PRINT_WRN(GENERIC_DBG, "Can't get VMM entery - reg = %2x\n", reg);
 				}
 			} while (--timeout);
 			if (timeout <= 0) {
-				ret = p->hif_func.hif_write_reg(WILC_HOST_VMM_CTL, 0x0);
+				ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_VMM_CTL, 0x0);
 				break;
 			}
 
@@ -999,14 +816,13 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 			if (entries == 0) {
 				PRINT_WRN(GENERIC_DBG, "[wilc txq]: no more buffer in the chip (reg: %08x), retry later [[ %d, %x ]]\n", reg, i, vmm_table[i - 1]);
 
-				/* undo the transaction. */
-				ret = p->hif_func.hif_read_reg(WILC_HOST_TX_CTRL, &reg);
+				ret = wilc->hif_func->hif_read_reg(wilc, WILC_HOST_TX_CTRL, &reg);
 				if (!ret) {
 					wilc_debug(N_ERR, "[wilc txq]: fail can't read reg WILC_HOST_TX_CTRL..\n");
 					break;
 				}
 				reg &= ~BIT(0);
-				ret = p->hif_func.hif_write_reg(WILC_HOST_TX_CTRL, reg);
+				ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, reg);
 				if (!ret) {
 					wilc_debug(N_ERR, "[wilc txq]: fail can't write reg WILC_HOST_TX_CTRL..\n");
 					break;
@@ -1025,58 +841,50 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 			goto _end_;
 		}
 
-		/* since copying data into txb takes some time, then
-		 * allow the bus lock to be released let the RX task go. */
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 
-		/**
-		 *      Copy data to the TX buffer
-		 **/
 		offset = 0;
 		i = 0;
 		do {
-			tqe = wilc_wlan_txq_remove_from_head();
-			if (tqe != NULL && (vmm_table[i] != 0)) {
+			tqe = wilc_wlan_txq_remove_from_head(dev);
+			if (tqe && (vmm_table[i] != 0)) {
 				u32 header, buffer_offset;
 
-#ifdef BIG_ENDIAN
-				vmm_table[i] = BYTE_SWAP(vmm_table[i]);
-#endif
-				vmm_sz = (vmm_table[i] & 0x3ff);        /* in word unit */
+				vmm_table[i] = cpu_to_le32(vmm_table[i]);
+				vmm_sz = (vmm_table[i] & 0x3ff);
 				vmm_sz *= 4;
-				header = (tqe->type << 31) | (tqe->buffer_size << 15) | vmm_sz;
+				header = (tqe->type << 31) |
+					 (tqe->buffer_size << 15) |
+					 vmm_sz;
 				if (tqe->type == WILC_MGMT_PKT)
 					header |= BIT(30);
 				else
 					header &= ~BIT(30);
 
-#ifdef BIG_ENDIAN
-				header = BYTE_SWAP(header);
-#endif
+				header = cpu_to_le32(header);
 				memcpy(&txb[offset], &header, 4);
 				if (tqe->type == WILC_CFG_PKT) {
 					buffer_offset = ETH_CONFIG_PKT_HDR_OFFSET;
-				}
-				else if (tqe->type == WILC_NET_PKT) {
-					char *pBSSID = ((struct tx_complete_data *)(tqe->priv))->pBssid;
+				} else if (tqe->type == WILC_NET_PKT) {
+					char *bssid = ((struct tx_complete_data *)(tqe->priv))->pBssid;
 
 					buffer_offset = ETH_ETHERNET_HDR_OFFSET;
-					/* copy the bssid at the sart of the buffer */
-					memcpy(&txb[offset + 4], pBSSID, 6);
-				}
-				else {
+					memcpy(&txb[offset + 4], bssid, 6);
+				} else {
 					buffer_offset = HOST_HDR_OFFSET;
 				}
 
-				memcpy(&txb[offset + buffer_offset], tqe->buffer, tqe->buffer_size);
+				memcpy(&txb[offset + buffer_offset],
+				       tqe->buffer, tqe->buffer_size);
 				offset += vmm_sz;
 				i++;
-				tqe->status = 1;                                /* mark the packet send */
+				tqe->status = 1;
 				if (tqe->tx_complete_func)
-					tqe->tx_complete_func(tqe->priv, tqe->status);
+					tqe->tx_complete_func(tqe->priv,
+							      tqe->status);
 				#ifdef TCP_ACK_FILTER
-				if (tqe->tcp_PendingAck_index != NOT_TCP_ACK)
-					Pending_Acks_info[tqe->tcp_PendingAck_index].txqe = NULL;
+				if (tqe->tcp_pending_ack_idx != NOT_TCP_ACK)
+					pending_acks_info[tqe->tcp_pending_ack_idx].txqe = NULL;
 				#endif
 				kfree(tqe);
 			} else {
@@ -1084,21 +892,15 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 			}
 		} while (--entries);
 
-		/**
-		 *      lock the bus
-		 **/
-		acquire_bus(ACQUIRE_AND_WAKEUP);
+		acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 
-		ret = p->hif_func.hif_clear_int_ext(ENABLE_TX_VMM);
+		ret = wilc->hif_func->hif_clear_int_ext(wilc, ENABLE_TX_VMM);
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc txq]: fail can't start tx VMM ...\n");
 			goto _end_;
 		}
 
-		/**
-		 *      transfer
-		 **/
-		ret = p->hif_func.hif_block_tx_ext(0, txb, offset);
+		ret = wilc->hif_func->hif_block_tx_ext(wilc, 0, txb, offset);
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc txq]: fail can't block tx ext...\n");
 			goto _end_;
@@ -1106,49 +908,43 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount)
 
 _end_:
 
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 		if (ret != 1)
 			break;
 	} while (0);
 	up(&wilc->txq_add_to_head_cs);
 
-	p->txq_exit = 1;
+	wilc->txq_exit = 1;
 	PRINT_D(TX_DBG, "THREAD: Exiting txq\n");
-	/* return tx[]q count */
-	*pu32TxqCount = p->txq_entries;
+	*txq_count = wilc->txq_entries;
 	return ret;
 }
 
 static void wilc_wlan_handle_rxq(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	int offset = 0, size, has_packet = 0;
 	u8 *buffer;
 	struct rxq_entry_t *rqe;
 
-	p->rxq_exit = 0;
-
-
-
+	wilc->rxq_exit = 0;
 
 	do {
-		if (p->quit) {
+		if (wilc->quit) {
 			PRINT_D(RX_DBG, "exit 1st do-while due to Clean_UP function\n");
 			up(&wilc->cfg_event);
 			break;
 		}
 		rqe = wilc_wlan_rxq_remove(wilc);
-		if (rqe == NULL) {
+		if (!rqe) {
 			PRINT_D(RX_DBG, "nothing in the queue - exit 1st do-while\n");
 			break;
 		}
 		buffer = rqe->buffer;
 		size = rqe->buffer_size;
-		PRINT_D(RX_DBG, "rxQ entery Size = %d - Address = %p\n", size, buffer);
+		PRINT_D(RX_DBG, "rxQ entery Size = %d - Address = %p\n",
+			size, buffer);
 		offset = 0;
 
-
-
 		do {
 			u32 header;
 			u32 pkt_len, pkt_offset, tp_len;
@@ -1156,12 +952,9 @@ static void wilc_wlan_handle_rxq(struct wilc *wilc)
 
 			PRINT_D(RX_DBG, "In the 2nd do-while\n");
 			memcpy(&header, &buffer[offset], 4);
-#ifdef BIG_ENDIAN
-			header = BYTE_SWAP(header);
-#endif
-			PRINT_D(RX_DBG, "Header = %04x - Offset = %d\n", header, offset);
-
-
+			header = cpu_to_le32(header);
+			PRINT_D(RX_DBG, "Header = %04x - Offset = %d\n",
+				header, offset);
 
 			is_cfg_packet = (header >> 31) & 0x1;
 			pkt_offset = (header >> 22) & 0x1ff;
@@ -1177,45 +970,34 @@ static void wilc_wlan_handle_rxq(struct wilc *wilc)
 			#define IS_MANAGMEMENT_CALLBACK			0x080
 			#define IS_MGMT_STATUS_SUCCES			0x040
 
-
 			if (pkt_offset & IS_MANAGMEMENT) {
-				/* reset mgmt indicator bit, to use pkt_offeset in furthur calculations */
-				pkt_offset &= ~(IS_MANAGMEMENT | IS_MANAGMEMENT_CALLBACK | IS_MGMT_STATUS_SUCCES);
+				pkt_offset &= ~(IS_MANAGMEMENT |
+						IS_MANAGMEMENT_CALLBACK |
+						IS_MGMT_STATUS_SUCCES);
 
 				WILC_WFI_mgmt_rx(wilc, &buffer[offset + HOST_HDR_OFFSET], pkt_len);
-			}
-			else
-			{
-
+			} else {
 				if (!is_cfg_packet) {
 					if (pkt_len > 0) {
-						frmw_to_linux(wilc,
+						wilc_frmw_to_linux(wilc,
 							      &buffer[offset],
 							      pkt_len,
 							      pkt_offset);
 						has_packet = 1;
 					}
 				} else {
-					wilc_cfg_rsp_t rsp;
-
-
+					struct wilc_cfg_rsp rsp;
 
-					wilc_wlan_cfg_indicate_rx(&buffer[pkt_offset + offset], pkt_len, &rsp);
+					wilc_wlan_cfg_indicate_rx(wilc, &buffer[pkt_offset + offset], pkt_len, &rsp);
 					if (rsp.type == WILC_CFG_RSP) {
-						/**
-						 *      wake up the waiting task...
-						 **/
-						PRINT_D(RX_DBG, "p->cfg_seq_no = %d - rsp.seq_no = %d\n", p->cfg_seq_no, rsp.seq_no);
-						if (p->cfg_seq_no == rsp.seq_no)
+						PRINT_D(RX_DBG, "wilc->cfg_seq_no = %d - rsp.seq_no = %d\n", wilc->cfg_seq_no, rsp.seq_no);
+						if (wilc->cfg_seq_no == rsp.seq_no)
 							up(&wilc->cfg_event);
 					} else if (rsp.type == WILC_CFG_RSP_STATUS) {
-						/**
-						 *      Call back to indicate status...
-						 **/
-						linux_wlan_mac_indicate(wilc, WILC_MAC_INDICATE_STATUS);
+						wilc_mac_indicate(wilc, WILC_MAC_INDICATE_STATUS);
 
 					} else if (rsp.type == WILC_CFG_RSP_SCAN) {
-						linux_wlan_mac_indicate(wilc, WILC_MAC_INDICATE_SCAN);
+						wilc_mac_indicate(wilc, WILC_MAC_INDICATE_SCAN);
 					}
 				}
 			}
@@ -1223,224 +1005,163 @@ static void wilc_wlan_handle_rxq(struct wilc *wilc)
 			if (offset >= size)
 				break;
 		} while (1);
-
-
-#ifndef MEMORY_STATIC
-		kfree(buffer);
-#endif
 		kfree(rqe);
 
 		if (has_packet)
-			linux_wlan_rx_complete();
+			wilc_rx_complete(wilc);
 
 	} while (1);
 
-	p->rxq_exit = 1;
+	wilc->rxq_exit = 1;
 	PRINT_D(RX_DBG, "THREAD: Exiting RX thread\n");
 }
 
-/********************************************
- *
- *      Fast DMA Isr
- *
- ********************************************/
-static void wilc_unknown_isr_ext(void)
+static void wilc_unknown_isr_ext(struct wilc *wilc)
 {
-	g_wlan.hif_func.hif_clear_int_ext(0);
+	wilc->hif_func->hif_clear_int_ext(wilc, 0);
 }
-static void wilc_pllupdate_isr_ext(u32 int_stats)
-{
 
+static void wilc_pllupdate_isr_ext(struct wilc *wilc, u32 int_stats)
+{
 	int trials = 10;
 
-	g_wlan.hif_func.hif_clear_int_ext(PLL_INT_CLR);
+	wilc->hif_func->hif_clear_int_ext(wilc, PLL_INT_CLR);
 
-	/* Waiting for PLL */
-	mdelay(WILC_PLL_TO);
+	if (wilc->io_type == HIF_SDIO)
+		mdelay(WILC_PLL_TO_SDIO);
+	else
+		mdelay(WILC_PLL_TO_SPI);
 
-	/* poll till read a valid data */
-	while (!(ISWILC1000(wilc_get_chipid(true)) && --trials)) {
+	while (!(ISWILC1000(wilc_get_chipid(wilc, true)) && --trials)) {
 		PRINT_D(TX_DBG, "PLL update retrying\n");
 		mdelay(1);
 	}
 }
 
-static void wilc_sleeptimer_isr_ext(u32 int_stats1)
+static void wilc_sleeptimer_isr_ext(struct wilc *wilc, u32 int_stats1)
 {
-	g_wlan.hif_func.hif_clear_int_ext(SLEEP_INT_CLR);
+	wilc->hif_func->hif_clear_int_ext(wilc, SLEEP_INT_CLR);
 #ifndef WILC_OPTIMIZE_SLEEP_INT
-	genuChipPSstate = CHIP_SLEEPING_AUTO;
+	chip_ps_state = CHIP_SLEEPING_AUTO;
 #endif
 }
 
 static void wilc_wlan_handle_isr_ext(struct wilc *wilc, u32 int_status)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
-#ifdef MEMORY_STATIC
-	u32 offset = p->rx_buffer_offset;
-#endif
+	u32 offset = wilc->rx_buffer_offset;
 	u8 *buffer = NULL;
 	u32 size;
 	u32 retries = 0;
 	int ret = 0;
 	struct rxq_entry_t *rqe;
 
-
-	/**
-	 *      Get the rx size
-	 **/
-
 	size = ((int_status & 0x7fff) << 2);
 
 	while (!size && retries < 10) {
 		u32 time = 0;
-		/*looping more secure*/
-		/*zero size make a crashe because the dma will not happen and that will block the firmware*/
+
 		wilc_debug(N_ERR, "RX Size equal zero ... Trying to read it again for %d time\n", time++);
-		p->hif_func.hif_read_size(&size);
+		wilc->hif_func->hif_read_size(wilc, &size);
 		size = ((size & 0x7fff) << 2);
 		retries++;
-
 	}
 
 	if (size > 0) {
-#ifdef MEMORY_STATIC
 		if (LINUX_RX_SIZE - offset < size)
 			offset = 0;
 
-		if (p->rx_buffer)
-			buffer = &p->rx_buffer[offset];
-		else {
+		if (wilc->rx_buffer) {
+			buffer = &wilc->rx_buffer[offset];
+		} else {
 			wilc_debug(N_ERR, "[wilc isr]: fail Rx Buffer is NULL...drop the packets (%d)\n", size);
 			goto _end_;
 		}
 
-#else
-		buffer = kmalloc(size, GFP_KERNEL);
-		if (buffer == NULL) {
-			wilc_debug(N_ERR, "[wilc isr]: fail alloc host memory...drop the packets (%d)\n", size);
-			usleep_range(100 * 1000, 100 * 1000);
-			goto _end_;
-		}
-#endif
-
-		/**
-		 *      clear the chip's interrupt	 after getting size some register getting corrupted after clear the interrupt
-		 **/
-		p->hif_func.hif_clear_int_ext(DATA_INT_CLR | ENABLE_RX_VMM);
-
-
-		/**
-		 * start transfer
-		 **/
-		ret = p->hif_func.hif_block_rx_ext(0, buffer, size);
+		wilc->hif_func->hif_clear_int_ext(wilc,
+					      DATA_INT_CLR | ENABLE_RX_VMM);
+		ret = wilc->hif_func->hif_block_rx_ext(wilc, 0, buffer, size);
 
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc isr]: fail block rx...\n");
 			goto _end_;
 		}
 _end_:
-
-
 		if (ret) {
-#ifdef MEMORY_STATIC
 			offset += size;
-			p->rx_buffer_offset = offset;
-#endif
-			/**
-			 *      add to rx queue
-			 **/
-			rqe = kmalloc(sizeof(struct rxq_entry_t), GFP_KERNEL);
-			if (rqe != NULL) {
+			wilc->rx_buffer_offset = offset;
+			rqe = kmalloc(sizeof(*rqe), GFP_KERNEL);
+			if (rqe) {
 				rqe->buffer = buffer;
 				rqe->buffer_size = size;
 				PRINT_D(RX_DBG, "rxq entery Size= %d - Address = %p\n", rqe->buffer_size, rqe->buffer);
 				wilc_wlan_rxq_add(wilc, rqe);
 			}
-		} else {
-#ifndef MEMORY_STATIC
-			kfree(buffer);
-#endif
 		}
 	}
 	wilc_wlan_handle_rxq(wilc);
 }
 
-void wilc_handle_isr(void *wilc)
+void wilc_handle_isr(struct wilc *wilc)
 {
 	u32 int_status;
 
-	acquire_bus(ACQUIRE_AND_WAKEUP);
-	g_wlan.hif_func.hif_read_int(&int_status);
+	acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
+	wilc->hif_func->hif_read_int(wilc, &int_status);
 
 	if (int_status & PLL_INT_EXT)
-		wilc_pllupdate_isr_ext(int_status);
+		wilc_pllupdate_isr_ext(wilc, int_status);
 
 	if (int_status & DATA_INT_EXT) {
 		wilc_wlan_handle_isr_ext(wilc, int_status);
 	#ifndef WILC_OPTIMIZE_SLEEP_INT
-		/* Chip is up and talking*/
-		genuChipPSstate = CHIP_WAKEDUP;
+		chip_ps_state = CHIP_WAKEDUP;
 	#endif
 	}
 	if (int_status & SLEEP_INT_EXT)
-		wilc_sleeptimer_isr_ext(int_status);
+		wilc_sleeptimer_isr_ext(wilc, int_status);
 
 	if (!(int_status & (ALL_INT_EXT))) {
-#ifdef WILC_SDIO
-		PRINT_D(TX_DBG, ">> UNKNOWN_INTERRUPT - 0x%08x\n", int_status);
-#endif
-		wilc_unknown_isr_ext();
+		wilc_unknown_isr_ext(wilc);
 	}
-	release_bus(RELEASE_ALLOW_SLEEP);
+	release_bus(wilc, RELEASE_ALLOW_SLEEP);
 }
+EXPORT_SYMBOL_GPL(wilc_handle_isr);
 
-/********************************************
- *
- *      Firmware download
- *
- ********************************************/
-int wilc_wlan_firmware_download(const u8 *buffer, u32 buffer_size)
+int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer, u32 buffer_size)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	u32 offset;
 	u32 addr, size, size2, blksz;
 	u8 *dma_buffer;
 	int ret = 0;
 
 	blksz = BIT(12);
-	/* Allocate a DMA coherent  buffer. */
 
 	dma_buffer = kmalloc(blksz, GFP_KERNEL);
-	if (dma_buffer == NULL) {
-		/*EIO	5*/
-		ret = -5;
+	if (!dma_buffer) {
+		ret = -EIO;
 		PRINT_ER("Can't allocate buffer for firmware download IO error\n ");
 		goto _fail_1;
 	}
 
 	PRINT_D(INIT_DBG, "Downloading firmware size = %d ...\n", buffer_size);
-	/**
-	 *      load the firmware
-	 **/
+
 	offset = 0;
 	do {
 		memcpy(&addr, &buffer[offset], 4);
 		memcpy(&size, &buffer[offset + 4], 4);
-#ifdef BIG_ENDIAN
-		addr = BYTE_SWAP(addr);
-		size = BYTE_SWAP(size);
-#endif
-		acquire_bus(ACQUIRE_ONLY);
+		addr = cpu_to_le32(addr);
+		size = cpu_to_le32(size);
+		acquire_bus(wilc, ACQUIRE_ONLY);
 		offset += 8;
 		while (((int)size) && (offset < buffer_size)) {
 			if (size <= blksz)
 				size2 = size;
 			else
 				size2 = blksz;
-			/* Copy firmware into a DMA coherent buffer */
+
 			memcpy(dma_buffer, &buffer[offset], size2);
-			ret = p->hif_func.hif_block_tx(addr, dma_buffer, size2);
+			ret = wilc->hif_func->hif_block_tx(wilc, addr, dma_buffer,
+						       size2);
 			if (!ret)
 				break;
 
@@ -1448,11 +1169,10 @@ int wilc_wlan_firmware_download(const u8 *buffer, u32 buffer_size)
 			offset += size2;
 			size -= size2;
 		}
-		release_bus(RELEASE_ONLY);
+		release_bus(wilc, RELEASE_ONLY);
 
 		if (!ret) {
-			/*EIO	5*/
-			ret = -5;
+			ret = -EIO;
 			PRINT_ER("Can't download firmware IO error\n ");
 			goto _fail_;
 		}
@@ -1468,40 +1188,29 @@ _fail_1:
 	return (ret < 0) ? ret : 0;
 }
 
-/********************************************
- *
- *      Common
- *
- ********************************************/
-int wilc_wlan_start(void)
+int wilc_wlan_start(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	u32 reg = 0;
 	int ret;
 	u32 chipid;
 
-	/**
-	 *      Set the host interface
-	 **/
-	if (p->io_func.io_type == HIF_SDIO) {
+	if (wilc->io_type == HIF_SDIO) {
 		reg = 0;
-		reg |= BIT(3); /* bug 4456 and 4557 */
-	} else if (p->io_func.io_type == HIF_SPI) {
+		reg |= BIT(3);
+	} else if (wilc->io_type == HIF_SPI) {
 		reg = 1;
 	}
-	acquire_bus(ACQUIRE_ONLY);
-	ret = p->hif_func.hif_write_reg(WILC_VMM_CORE_CFG, reg);
+	acquire_bus(wilc, ACQUIRE_ONLY);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_VMM_CORE_CFG, reg);
 	if (!ret) {
 		wilc_debug(N_ERR, "[wilc start]: fail write reg vmm_core_cfg...\n");
-		release_bus(RELEASE_ONLY);
-		/* EIO  5*/
-		ret = -5;
+		release_bus(wilc, RELEASE_ONLY);
+		ret = -EIO;
 		return ret;
 	}
 	reg = 0;
-#ifdef WILC_SDIO_IRQ_GPIO
-	reg |= WILC_HAVE_SDIO_IRQ_GPIO;
-#endif
+	if (wilc->io_type == HIF_SDIO && wilc->dev_irq_num)
+		reg |= WILC_HAVE_SDIO_IRQ_GPIO;
 
 #ifdef WILC_DISABLE_PMU
 #else
@@ -1519,123 +1228,103 @@ int wilc_wlan_start(void)
 #endif
 
 	reg |= WILC_HAVE_LEGACY_RF_SETTINGS;
-
-
-/*Set oscillator frequency*/
 #ifdef XTAL_24
 	reg |= WILC_HAVE_XTAL_24;
 #endif
-
-/*Enable/Disable GPIO configuration for FW logs*/
 #ifdef DISABLE_WILC_UART
 	reg |= WILC_HAVE_DISABLE_WILC_UART;
 #endif
 
-	ret = p->hif_func.hif_write_reg(WILC_GP_REG_1, reg);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_1, reg);
 	if (!ret) {
 		wilc_debug(N_ERR, "[wilc start]: fail write WILC_GP_REG_1 ...\n");
-		release_bus(RELEASE_ONLY);
-		/* EIO  5*/
-		ret = -5;
+		release_bus(wilc, RELEASE_ONLY);
+		ret = -EIO;
 		return ret;
 	}
 
-	/**
-	 *      Bus related
-	 **/
-	p->hif_func.hif_sync_ext(NUM_INT_EXT);
+	wilc->hif_func->hif_sync_ext(wilc, NUM_INT_EXT);
 
-	ret = p->hif_func.hif_read_reg(0x1000, &chipid);
+	ret = wilc->hif_func->hif_read_reg(wilc, 0x1000, &chipid);
 	if (!ret) {
 		wilc_debug(N_ERR, "[wilc start]: fail read reg 0x1000 ...\n");
-		release_bus(RELEASE_ONLY);
-		/* EIO  5*/
-		ret = -5;
+		release_bus(wilc, RELEASE_ONLY);
+		ret = -EIO;
 		return ret;
 	}
 
-	/**
-	 *      Go...
-	 **/
-
-
-	p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
+	wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
 	if ((reg & BIT(10)) == BIT(10)) {
 		reg &= ~BIT(10);
-		p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
-		p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
+		wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
+		wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
 	}
 
 	reg |= BIT(10);
-	ret = p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
-	p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
-	release_bus(RELEASE_ONLY);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
+	wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
+	release_bus(wilc, RELEASE_ONLY);
 
 	return (ret < 0) ? ret : 0;
 }
 
-void wilc_wlan_global_reset(void)
+void wilc_wlan_global_reset(struct wilc *wilc)
 {
-
-	wilc_wlan_dev_t *p = &g_wlan;
-
-	acquire_bus(ACQUIRE_AND_WAKEUP);
-	p->hif_func.hif_write_reg(WILC_GLB_RESET_0, 0x0);
-	release_bus(RELEASE_ONLY);
+	acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
+	wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, 0x0);
+	release_bus(wilc, RELEASE_ONLY);
 }
-int wilc_wlan_stop(void)
+int wilc_wlan_stop(struct wilc *wilc)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	u32 reg = 0;
 	int ret;
 	u8 timeout = 10;
-	/**
-	 *      TODO: stop the firmware, need a re-download
-	 **/
-	acquire_bus(ACQUIRE_AND_WAKEUP);
+	acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 
-	ret = p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
+	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
 	if (!ret) {
 		PRINT_ER("Error while reading reg\n");
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 		return ret;
 	}
 
 	reg &= ~BIT(10);
-
-
-	ret = p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
 	if (!ret) {
 		PRINT_ER("Error while writing reg\n");
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 		return ret;
 	}
 
-
-
 	do {
-		ret = p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
+		ret = wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
 		if (!ret) {
 			PRINT_ER("Error while reading reg\n");
-			release_bus(RELEASE_ALLOW_SLEEP);
+			release_bus(wilc, RELEASE_ALLOW_SLEEP);
 			return ret;
 		}
-		PRINT_D(GENERIC_DBG, "Read RESET Reg %x : Retry%d\n", reg, timeout);
-		/*Workaround to ensure that the chip is actually reset*/
+		PRINT_D(GENERIC_DBG, "Read RESET Reg %x : Retry%d\n",
+			reg, timeout);
+
 		if ((reg & BIT(10))) {
-			PRINT_D(GENERIC_DBG, "Bit 10 not reset : Retry %d\n", timeout);
+			PRINT_D(GENERIC_DBG, "Bit 10 not reset : Retry %d\n",
+				timeout);
 			reg &= ~BIT(10);
-			ret = p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
+			ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0,
+							reg);
 			timeout--;
 		} else {
-			PRINT_D(GENERIC_DBG, "Bit 10 reset after : Retry %d\n", timeout);
-			ret = p->hif_func.hif_read_reg(WILC_GLB_RESET_0, &reg);
+			PRINT_D(GENERIC_DBG, "Bit 10 reset after : Retry %d\n",
+				timeout);
+			ret = wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0,
+						       &reg);
 			if (!ret) {
 				PRINT_ER("Error while reading reg\n");
-				release_bus(RELEASE_ALLOW_SLEEP);
+				release_bus(wilc, RELEASE_ALLOW_SLEEP);
 				return ret;
 			}
-			PRINT_D(GENERIC_DBG, "Read RESET Reg %x : Retry%d\n", reg, timeout);
+			PRINT_D(GENERIC_DBG, "Read RESET Reg %x : Retry%d\n",
+				reg, timeout);
 			break;
 		}
 
@@ -1643,33 +1332,32 @@ int wilc_wlan_stop(void)
 	reg = (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(8) | BIT(9) | BIT(26) |
 	       BIT(29) | BIT(30) | BIT(31));
 
-	p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
+	wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
 	reg = (u32)~BIT(10);
 
-	ret = p->hif_func.hif_write_reg(WILC_GLB_RESET_0, reg);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
 
-	release_bus(RELEASE_ALLOW_SLEEP);
+	release_bus(wilc, RELEASE_ALLOW_SLEEP);
 
 	return ret;
 }
 
 void wilc_wlan_cleanup(struct net_device *dev)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	struct txq_entry_t *tqe;
 	struct rxq_entry_t *rqe;
 	u32 reg = 0;
 	int ret;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	p->quit = 1;
+	wilc->quit = 1;
 	do {
-		tqe = wilc_wlan_txq_remove_from_head();
-		if (tqe == NULL)
+		tqe = wilc_wlan_txq_remove_from_head(dev);
+		if (!tqe)
 			break;
 		if (tqe->tx_complete_func)
 			tqe->tx_complete_func(tqe->priv, 0);
@@ -1678,157 +1366,133 @@ void wilc_wlan_cleanup(struct net_device *dev)
 
 	do {
 		rqe = wilc_wlan_rxq_remove(wilc);
-		if (rqe == NULL)
+		if (!rqe)
 			break;
-#ifndef MEMORY_STATIC
-		kfree(rqe->buffer);
-#endif
 		kfree(rqe);
 	} while (1);
 
-	/**
-	 *      clean up buffer
-	 **/
-
-	#ifdef MEMORY_STATIC
-	kfree(p->rx_buffer);
-	p->rx_buffer = NULL;
-	#endif
-	kfree(p->tx_buffer);
+	kfree(wilc->rx_buffer);
+	wilc->rx_buffer = NULL;
+	kfree(wilc->tx_buffer);
+	wilc->tx_buffer = NULL;
 
-	acquire_bus(ACQUIRE_AND_WAKEUP);
+	acquire_bus(wilc, ACQUIRE_AND_WAKEUP);
 
-
-	ret = p->hif_func.hif_read_reg(WILC_GP_REG_0, &reg);
+	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, &reg);
 	if (!ret) {
 		PRINT_ER("Error while reading reg\n");
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 	}
 	PRINT_ER("Writing ABORT reg\n");
-	ret = p->hif_func.hif_write_reg(WILC_GP_REG_0, (reg | ABORT_INT));
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
+					(reg | ABORT_INT));
 	if (!ret) {
 		PRINT_ER("Error while writing reg\n");
-		release_bus(RELEASE_ALLOW_SLEEP);
+		release_bus(wilc, RELEASE_ALLOW_SLEEP);
 	}
-	release_bus(RELEASE_ALLOW_SLEEP);
-	/**
-	 *      io clean up
-	 **/
-	p->hif_func.hif_deinit(NULL);
-
+	release_bus(wilc, RELEASE_ALLOW_SLEEP);
+	wilc->hif_func->hif_deinit(NULL);
 }
 
-static int wilc_wlan_cfg_commit(int type, u32 drvHandler)
+static int wilc_wlan_cfg_commit(struct wilc *wilc, int type, u32 drv_handler)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
-	wilc_cfg_frame_t *cfg = &p->cfg_frame;
-	int total_len = p->cfg_frame_offset + 4 + DRIVER_HANDLER_SIZE;
-	int seq_no = p->cfg_seq_no % 256;
-	int driver_handler = (u32)drvHandler;
-
+	struct wilc_cfg_frame *cfg = &wilc->cfg_frame;
+	int total_len = wilc->cfg_frame_offset + 4 + DRIVER_HANDLER_SIZE;
+	int seq_no = wilc->cfg_seq_no % 256;
+	int driver_handler = (u32)drv_handler;
 
-	/**
-	 *      Set up header
-	 **/
-	if (type == WILC_CFG_SET) {             /* Set */
+	if (type == WILC_CFG_SET)
 		cfg->wid_header[0] = 'W';
-	} else {                                        /* Query */
+	else
 		cfg->wid_header[0] = 'Q';
-	}
-	cfg->wid_header[1] = seq_no;    /* sequence number */
+	cfg->wid_header[1] = seq_no;
 	cfg->wid_header[2] = (u8)total_len;
 	cfg->wid_header[3] = (u8)(total_len >> 8);
 	cfg->wid_header[4] = (u8)driver_handler;
 	cfg->wid_header[5] = (u8)(driver_handler >> 8);
 	cfg->wid_header[6] = (u8)(driver_handler >> 16);
 	cfg->wid_header[7] = (u8)(driver_handler >> 24);
-	p->cfg_seq_no = seq_no;
-
-	/**
-	 *      Add to TX queue
-	 **/
+	wilc->cfg_seq_no = seq_no;
 
-	if (!wilc_wlan_txq_add_cfg_pkt(&cfg->wid_header[0], total_len))
+	if (!wilc_wlan_txq_add_cfg_pkt(wilc, &cfg->wid_header[0], total_len))
 		return -1;
 
 	return 0;
 }
 
-int wilc_wlan_cfg_set(int start, u32 wid, u8 *buffer, u32 buffer_size,
-		      int commit, u32 drvHandler)
+int wilc_wlan_cfg_set(struct wilc *wilc, int start, u32 wid, u8 *buffer,
+		      u32 buffer_size, int commit, u32 drv_handler)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	u32 offset;
 	int ret_size;
 
-
-	if (p->cfg_frame_in_use)
+	if (wilc->cfg_frame_in_use)
 		return 0;
 
 	if (start)
-		p->cfg_frame_offset = 0;
+		wilc->cfg_frame_offset = 0;
 
-	offset = p->cfg_frame_offset;
-	ret_size = wilc_wlan_cfg_set_wid(p->cfg_frame.frame, offset, (u16)wid,
-					 buffer, buffer_size);
+	offset = wilc->cfg_frame_offset;
+	ret_size = wilc_wlan_cfg_set_wid(wilc->cfg_frame.frame, offset,
+					 (u16)wid, buffer, buffer_size);
 	offset += ret_size;
-	p->cfg_frame_offset = offset;
+	wilc->cfg_frame_offset = offset;
 
 	if (commit) {
-		PRINT_D(TX_DBG, "[WILC]PACKET Commit with sequence number %d\n", p->cfg_seq_no);
+		PRINT_D(TX_DBG, "[WILC]PACKET Commit with sequence number %d\n",
+			wilc->cfg_seq_no);
 		PRINT_D(RX_DBG, "Processing cfg_set()\n");
-		p->cfg_frame_in_use = 1;
+		wilc->cfg_frame_in_use = 1;
 
-		if (wilc_wlan_cfg_commit(WILC_CFG_SET, drvHandler))
+		if (wilc_wlan_cfg_commit(wilc, WILC_CFG_SET, drv_handler))
 			ret_size = 0;
 
-		if (linux_wlan_lock_timeout(&g_linux_wlan->cfg_event,
+		if (wilc_lock_timeout(wilc, &wilc->cfg_event,
 					    CFG_PKTS_TIMEOUT)) {
 			PRINT_D(TX_DBG, "Set Timed Out\n");
 			ret_size = 0;
 		}
-		p->cfg_frame_in_use = 0;
-		p->cfg_frame_offset = 0;
-		p->cfg_seq_no += 1;
-
+		wilc->cfg_frame_in_use = 0;
+		wilc->cfg_frame_offset = 0;
+		wilc->cfg_seq_no += 1;
 	}
 
 	return ret_size;
 }
-int wilc_wlan_cfg_get(int start, u32 wid, int commit, u32 drvHandler)
+
+int wilc_wlan_cfg_get(struct wilc *wilc, int start, u32 wid, int commit,
+		      u32 drv_handler)
 {
-	wilc_wlan_dev_t *p = &g_wlan;
 	u32 offset;
 	int ret_size;
 
-
-	if (p->cfg_frame_in_use)
+	if (wilc->cfg_frame_in_use)
 		return 0;
 
 	if (start)
-		p->cfg_frame_offset = 0;
+		wilc->cfg_frame_offset = 0;
 
-	offset = p->cfg_frame_offset;
-	ret_size = wilc_wlan_cfg_get_wid(p->cfg_frame.frame, offset, (u16)wid);
+	offset = wilc->cfg_frame_offset;
+	ret_size = wilc_wlan_cfg_get_wid(wilc->cfg_frame.frame, offset,
+					 (u16)wid);
 	offset += ret_size;
-	p->cfg_frame_offset = offset;
+	wilc->cfg_frame_offset = offset;
 
 	if (commit) {
-		p->cfg_frame_in_use = 1;
+		wilc->cfg_frame_in_use = 1;
 
-		if (wilc_wlan_cfg_commit(WILC_CFG_QUERY, drvHandler))
+		if (wilc_wlan_cfg_commit(wilc, WILC_CFG_QUERY, drv_handler))
 			ret_size = 0;
 
-
-		if (linux_wlan_lock_timeout(&g_linux_wlan->cfg_event,
+		if (wilc_lock_timeout(wilc, &wilc->cfg_event,
 					    CFG_PKTS_TIMEOUT)) {
 			PRINT_D(TX_DBG, "Get Timed Out\n");
 			ret_size = 0;
 		}
 		PRINT_D(GENERIC_DBG, "[WILC]Get Response received\n");
-		p->cfg_frame_in_use = 0;
-		p->cfg_frame_offset = 0;
-		p->cfg_seq_no += 1;
+		wilc->cfg_frame_in_use = 0;
+		wilc->cfg_frame_offset = 0;
+		wilc->cfg_seq_no += 1;
 	}
 
 	return ret_size;
@@ -1843,92 +1507,69 @@ int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size)
 	return ret;
 }
 
-void wilc_bus_set_max_speed(void)
-{
-
-	/* Increase bus speed to max possible.  */
-	g_wlan.hif_func.hif_set_max_bus_speed();
-}
-
-void wilc_bus_set_default_speed(void)
-{
-
-	/* Restore bus speed to default.  */
-	g_wlan.hif_func.hif_set_default_bus_speed();
-}
-u32 init_chip(void)
+static u32 init_chip(struct net_device *dev)
 {
 	u32 chipid;
 	u32 reg, ret = 0;
+	struct wilc_vif *vif;
+	struct wilc *wilc;
 
-	acquire_bus(ACQUIRE_ONLY);
-
-	chipid = wilc_get_chipid(true);
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
+	acquire_bus(wilc, ACQUIRE_ONLY);
 
+	chipid = wilc_get_chipid(wilc, true);
 
 	if ((chipid & 0xfff) != 0xa0) {
-		/**
-		 * Avoid booting from boot ROM. Make sure that Drive IRQN [SDIO platform]
-		 * or SD_DAT3 [SPI platform] to ?1?
-		 **/
-		/* Set cortus reset register to register control. */
-		ret = g_wlan.hif_func.hif_read_reg(0x1118, &reg);
+		ret = wilc->hif_func->hif_read_reg(wilc, 0x1118, &reg);
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc start]: fail read reg 0x1118 ...\n");
 			return ret;
 		}
 		reg |= BIT(0);
-		ret = g_wlan.hif_func.hif_write_reg(0x1118, reg);
+		ret = wilc->hif_func->hif_write_reg(wilc, 0x1118, reg);
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc start]: fail write reg 0x1118 ...\n");
 			return ret;
 		}
-		/**
-		 * Write branch intruction to IRAM (0x71 trap) at location 0xFFFF0000
-		 * (Cortus map) or C0000 (AHB map).
-		 **/
-		ret = g_wlan.hif_func.hif_write_reg(0xc0000, 0x71);
+		ret = wilc->hif_func->hif_write_reg(wilc, 0xc0000, 0x71);
 		if (!ret) {
 			wilc_debug(N_ERR, "[wilc start]: fail write reg 0xc0000 ...\n");
 			return ret;
 		}
 	}
 
-	release_bus(RELEASE_ONLY);
+	release_bus(wilc, RELEASE_ONLY);
 
 	return ret;
-
 }
 
-u32 wilc_get_chipid(u8 update)
+u32 wilc_get_chipid(struct wilc *wilc, u8 update)
 {
 	static u32 chipid;
-	/* SDIO can't read into global variables */
-	/* Use this variable as a temp, then copy to the global */
 	u32 tempchipid = 0;
 	u32 rfrevid;
 
 	if (chipid == 0 || update != 0) {
-		g_wlan.hif_func.hif_read_reg(0x1000, &tempchipid);
-		g_wlan.hif_func.hif_read_reg(0x13f4, &rfrevid);
+		wilc->hif_func->hif_read_reg(wilc, 0x1000, &tempchipid);
+		wilc->hif_func->hif_read_reg(wilc, 0x13f4, &rfrevid);
 		if (!ISWILC1000(tempchipid)) {
 			chipid = 0;
 			goto _fail_;
 		}
 		if (tempchipid == 0x1002a0) {
-			if (rfrevid == 0x1) { /* 1002A0 */
-			} else { /* if (rfrevid == 0x2) */   /* 1002A1 */
+			if (rfrevid == 0x1) {
+			} else {
 				tempchipid = 0x1002a1;
 			}
 		} else if (tempchipid == 0x1002b0) {
-			if (rfrevid == 3) { /* 1002B0 */
-			} else if (rfrevid == 4) { /* 1002B1 */
+			if (rfrevid == 3) {
+			} else if (rfrevid == 4) {
 				tempchipid = 0x1002b1;
-			} else { /* if(rfrevid == 5) */   /* 1002B2 */
+			} else {
 				tempchipid = 0x1002b2;
 			}
-		} else {
 		}
 
 		chipid = tempchipid;
@@ -1937,129 +1578,88 @@ _fail_:
 	return chipid;
 }
 
-int wilc_wlan_init(wilc_wlan_inp_t *inp)
+int wilc_wlan_init(struct net_device *dev)
 {
-
 	int ret = 0;
+	struct wilc_vif *vif = netdev_priv(dev);
+	struct wilc *wilc;
+
+	wilc = vif->wilc;
 
 	PRINT_D(INIT_DBG, "Initializing WILC_Wlan ...\n");
 
-	memset((void *)&g_wlan, 0, sizeof(wilc_wlan_dev_t));
-
-	/**
-	 *      store the input
-	 **/
-	memcpy((void *)&g_wlan.io_func, (void *)&inp->io_func, sizeof(wilc_wlan_io_func_t));
-	/***
-	 *      host interface init
-	 **/
-	if ((inp->io_func.io_type & 0x1) == HIF_SDIO) {
-		if (!hif_sdio.hif_init(inp, wilc_debug)) {
-			/* EIO	5 */
-			ret = -5;
-			goto _fail_;
-		}
-		memcpy((void *)&g_wlan.hif_func, &hif_sdio, sizeof(wilc_hif_func_t));
-	} else {
-		if ((inp->io_func.io_type & 0x1) == HIF_SPI) {
-			/**
-			 *      TODO:
-			 **/
-			if (!hif_spi.hif_init(inp, wilc_debug)) {
-				/* EIO	5 */
-				ret = -5;
-				goto _fail_;
-			}
-			memcpy((void *)&g_wlan.hif_func, &hif_spi, sizeof(wilc_hif_func_t));
-		} else {
-			/* EIO	5 */
-			ret = -5;
-			goto _fail_;
-		}
+	if (!wilc->hif_func->hif_init(wilc)) {
+		ret = -EIO;
+		goto _fail_;
 	}
 
-	/***
-	 *      mac interface init
-	 **/
 	if (!wilc_wlan_cfg_init(wilc_debug)) {
-		/* ENOBUFS	105 */
-		ret = -105;
+		ret = -ENOBUFS;
 		goto _fail_;
 	}
 
-	/**
-	 *      alloc tx, rx buffer
-	 **/
-	if (g_wlan.tx_buffer == NULL)
-		g_wlan.tx_buffer = kmalloc(LINUX_TX_SIZE, GFP_KERNEL);
-	PRINT_D(TX_DBG, "g_wlan.tx_buffer = %p\n", g_wlan.tx_buffer);
+	if (!wilc->tx_buffer)
+		wilc->tx_buffer = kmalloc(LINUX_TX_SIZE, GFP_KERNEL);
+	PRINT_D(TX_DBG, "wilc->tx_buffer = %p\n", wilc->tx_buffer);
 
-	if (g_wlan.tx_buffer == NULL) {
-		/* ENOBUFS	105 */
-		ret = -105;
+	if (!wilc->tx_buffer) {
+		ret = -ENOBUFS;
 		PRINT_ER("Can't allocate Tx Buffer");
 		goto _fail_;
 	}
 
-/* rx_buffer is not used unless we activate USE_MEM STATIC which is not applicable, allocating such memory is useless*/
-#if defined (MEMORY_STATIC)
-	if (g_wlan.rx_buffer == NULL)
-		g_wlan.rx_buffer = kmalloc(LINUX_RX_SIZE, GFP_KERNEL);
-	PRINT_D(TX_DBG, "g_wlan.rx_buffer =%p\n", g_wlan.rx_buffer);
-	if (g_wlan.rx_buffer == NULL) {
-		/* ENOBUFS	105 */
-		ret = -105;
+	if (!wilc->rx_buffer)
+		wilc->rx_buffer = kmalloc(LINUX_RX_SIZE, GFP_KERNEL);
+	PRINT_D(TX_DBG, "wilc->rx_buffer =%p\n", wilc->rx_buffer);
+	if (!wilc->rx_buffer) {
+		ret = -ENOBUFS;
 		PRINT_ER("Can't allocate Rx Buffer");
 		goto _fail_;
 	}
-#endif
 
-	if (!init_chip()) {
-		/* EIO	5 */
-		ret = -5;
+	if (!init_chip(dev)) {
+		ret = -EIO;
 		goto _fail_;
 	}
 #ifdef	TCP_ACK_FILTER
-	Init_TCP_tracking();
+	init_tcp_tracking();
 #endif
 
 	return 1;
 
 _fail_:
 
-  #ifdef MEMORY_STATIC
-	kfree(g_wlan.rx_buffer);
-	g_wlan.rx_buffer = NULL;
-  #endif
-	kfree(g_wlan.tx_buffer);
-	g_wlan.tx_buffer = NULL;
+	kfree(wilc->rx_buffer);
+	wilc->rx_buffer = NULL;
+	kfree(wilc->tx_buffer);
+	wilc->tx_buffer = NULL;
 
 	return ret;
-
 }
 
-u16 Set_machw_change_vir_if(struct net_device *dev, bool bValue)
+u16 wilc_set_machw_change_vir_if(struct net_device *dev, bool value)
 {
 	u16 ret;
 	u32 reg;
-	perInterface_wlan_t *nic;
+	struct wilc_vif *vif;
 	struct wilc *wilc;
 
-	nic = netdev_priv(dev);
-	wilc = nic->wilc;
+	vif = netdev_priv(dev);
+	wilc = vif->wilc;
 
-	/*Reset WILC_CHANGING_VIR_IF register to allow adding futrue keys to CE H/W*/
 	mutex_lock(&wilc->hif_cs);
-	ret = (&g_wlan)->hif_func.hif_read_reg(WILC_CHANGING_VIR_IF, &reg);
+	ret = wilc->hif_func->hif_read_reg(wilc, WILC_CHANGING_VIR_IF,
+					       &reg);
 	if (!ret)
 		PRINT_ER("Error while Reading reg WILC_CHANGING_VIR_IF\n");
 
-	if (bValue)
+	if (value)
 		reg |= BIT(31);
 	else
 		reg &= ~BIT(31);
 
-	ret = (&g_wlan)->hif_func.hif_write_reg(WILC_CHANGING_VIR_IF, reg);
+	ret = wilc->hif_func->hif_write_reg(wilc, WILC_CHANGING_VIR_IF,
+						reg);
 
 	if (!ret)
 		PRINT_ER("Error while writing reg WILC_CHANGING_VIR_IF\n");
diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index 57e1d5174050..2edd7445f4a3 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -1,155 +1,131 @@
 #ifndef WILC_WLAN_H
 #define WILC_WLAN_H
 
+#include <linux/types.h>
 
-
-#define ISWILC1000(id)   (((id & 0xfffff000) == 0x100000) ? 1 : 0)
-
+#define ISWILC1000(id)			((id & 0xfffff000) == 0x100000 ? 1 : 0)
 
 /********************************************
  *
  *      Mac eth header length
  *
  ********************************************/
-#define DRIVER_HANDLER_SIZE 4
-#define MAX_MAC_HDR_LEN         26 /* QOS_MAC_HDR_LEN */
-#define SUB_MSDU_HEADER_LENGTH  14
-#define SNAP_HDR_LEN            8
-#define ETHERNET_HDR_LEN          14
-#define WORD_ALIGNMENT_PAD        0
-
-#define ETH_ETHERNET_HDR_OFFSET   (MAX_MAC_HDR_LEN + SUB_MSDU_HEADER_LENGTH + \
-				   SNAP_HDR_LEN - ETHERNET_HDR_LEN + WORD_ALIGNMENT_PAD)
-
-#define HOST_HDR_OFFSET		4
-#define ETHERNET_HDR_LEN          14
-#define IP_HDR_LEN                20
-#define IP_HDR_OFFSET             ETHERNET_HDR_LEN
-#define UDP_HDR_OFFSET            (IP_HDR_LEN + IP_HDR_OFFSET)
-#define UDP_HDR_LEN               8
-#define UDP_DATA_OFFSET           (UDP_HDR_OFFSET + UDP_HDR_LEN)
-#define ETH_CONFIG_PKT_HDR_LEN    UDP_DATA_OFFSET
-
-#define ETH_CONFIG_PKT_HDR_OFFSET (ETH_ETHERNET_HDR_OFFSET + \
-				   ETH_CONFIG_PKT_HDR_LEN)
-
-/********************************************
- *
- *      Endian Conversion
- *
- ********************************************/
-
-#define BYTE_SWAP(val) ((((val) & 0x000000FF) << 24) + \
-			(((val) & 0x0000FF00) << 8)  + \
-			(((val) & 0x00FF0000) >> 8)   +	\
-			(((val) & 0xFF000000) >> 24))
+#define DRIVER_HANDLER_SIZE		4
+#define MAX_MAC_HDR_LEN			26 /* QOS_MAC_HDR_LEN */
+#define SUB_MSDU_HEADER_LENGTH		14
+#define SNAP_HDR_LEN			8
+#define ETHERNET_HDR_LEN		14
+#define WORD_ALIGNMENT_PAD		0
+
+#define ETH_ETHERNET_HDR_OFFSET		(MAX_MAC_HDR_LEN + \
+					 SUB_MSDU_HEADER_LENGTH + \
+					 SNAP_HDR_LEN - \
+					 ETHERNET_HDR_LEN + \
+					 WORD_ALIGNMENT_PAD)
+
+#define HOST_HDR_OFFSET			4
+#define ETHERNET_HDR_LEN		14
+#define IP_HDR_LEN			20
+#define IP_HDR_OFFSET			ETHERNET_HDR_LEN
+#define UDP_HDR_OFFSET			(IP_HDR_LEN + IP_HDR_OFFSET)
+#define UDP_HDR_LEN			8
+#define UDP_DATA_OFFSET			(UDP_HDR_OFFSET + UDP_HDR_LEN)
+#define ETH_CONFIG_PKT_HDR_LEN		UDP_DATA_OFFSET
+
+#define ETH_CONFIG_PKT_HDR_OFFSET	(ETH_ETHERNET_HDR_OFFSET + \
+					 ETH_CONFIG_PKT_HDR_LEN)
 
 /********************************************
  *
  *      Register Defines
  *
  ********************************************/
-#define WILC_PERIPH_REG_BASE 0x1000
-#define WILC_CHANGING_VIR_IF                     (0x108c)
-#define WILC_CHIPID	(WILC_PERIPH_REG_BASE)
-#define WILC_GLB_RESET_0 (WILC_PERIPH_REG_BASE + 0x400)
-#define WILC_PIN_MUX_0 (WILC_PERIPH_REG_BASE + 0x408)
-#define WILC_HOST_TX_CTRL (WILC_PERIPH_REG_BASE + 0x6c)
-#define WILC_HOST_RX_CTRL_0 (WILC_PERIPH_REG_BASE + 0x70)
-#define WILC_HOST_RX_CTRL_1 (WILC_PERIPH_REG_BASE + 0x74)
-#define WILC_HOST_VMM_CTL	(WILC_PERIPH_REG_BASE + 0x78)
-#define WILC_HOST_RX_CTRL	(WILC_PERIPH_REG_BASE + 0x80)
-#define WILC_HOST_RX_EXTRA_SIZE	(WILC_PERIPH_REG_BASE + 0x84)
-#define WILC_HOST_TX_CTRL_1	(WILC_PERIPH_REG_BASE + 0x88)
-#define WILC_MISC	(WILC_PERIPH_REG_BASE + 0x428)
-#define WILC_INTR_REG_BASE (WILC_PERIPH_REG_BASE + 0xa00)
-#define WILC_INTR_ENABLE (WILC_INTR_REG_BASE)
-#define WILC_INTR2_ENABLE (WILC_INTR_REG_BASE + 4)
-
-#define WILC_INTR_POLARITY (WILC_INTR_REG_BASE + 0x10)
-#define WILC_INTR_TYPE (WILC_INTR_REG_BASE + 0x20)
-#define WILC_INTR_CLEAR (WILC_INTR_REG_BASE + 0x30)
-#define WILC_INTR_STATUS (WILC_INTR_REG_BASE + 0x40)
-
-#define WILC_VMM_TBL_SIZE 64
-#define WILC_VMM_TX_TBL_BASE (0x150400)
-#define WILC_VMM_RX_TBL_BASE (0x150500)
-
-#define WILC_VMM_BASE 0x150000
-#define WILC_VMM_CORE_CTL (WILC_VMM_BASE)
-#define WILC_VMM_TBL_CTL (WILC_VMM_BASE + 0x4)
-#define WILC_VMM_TBL_ENTRY (WILC_VMM_BASE + 0x8)
-#define WILC_VMM_TBL0_SIZE (WILC_VMM_BASE + 0xc)
-#define WILC_VMM_TO_HOST_SIZE (WILC_VMM_BASE + 0x10)
-#define WILC_VMM_CORE_CFG (WILC_VMM_BASE + 0x14)
-#define WILC_VMM_TBL_ACTIVE (WILC_VMM_BASE + 040)
-#define WILC_VMM_TBL_STATUS (WILC_VMM_BASE + 0x44)
-
-#define WILC_SPI_REG_BASE 0xe800
-#define WILC_SPI_CTL (WILC_SPI_REG_BASE)
-#define WILC_SPI_MASTER_DMA_ADDR (WILC_SPI_REG_BASE + 0x4)
-#define WILC_SPI_MASTER_DMA_COUNT (WILC_SPI_REG_BASE + 0x8)
-#define WILC_SPI_SLAVE_DMA_ADDR (WILC_SPI_REG_BASE + 0xc)
-#define WILC_SPI_SLAVE_DMA_COUNT (WILC_SPI_REG_BASE + 0x10)
-#define WILC_SPI_TX_MODE (WILC_SPI_REG_BASE + 0x20)
-#define WILC_SPI_PROTOCOL_CONFIG (WILC_SPI_REG_BASE + 0x24)
-#define WILC_SPI_INTR_CTL (WILC_SPI_REG_BASE + 0x2c)
-
-#define WILC_SPI_PROTOCOL_OFFSET (WILC_SPI_PROTOCOL_CONFIG - WILC_SPI_REG_BASE)
-
-#define WILC_AHB_DATA_MEM_BASE 0x30000
-#define WILC_AHB_SHARE_MEM_BASE 0xd0000
-
-#define WILC_VMM_TBL_RX_SHADOW_BASE WILC_AHB_SHARE_MEM_BASE
-#define WILC_VMM_TBL_RX_SHADOW_SIZE (256)
-
-#define WILC_GP_REG_0   0x149c
-#define WILC_GP_REG_1   0x14a0
-
-#define rHAVE_SDIO_IRQ_GPIO_BIT      (0)
-#define rHAVE_USE_PMU_BIT            (1)
-#define rHAVE_SLEEP_CLK_SRC_RTC_BIT  (2)
-#define rHAVE_SLEEP_CLK_SRC_XO_BIT   (3)
-#define rHAVE_EXT_PA_INV_TX_RX_BIT   (4)
-#define rHAVE_LEGACY_RF_SETTINGS_BIT (5)
-#define rHAVE_XTAL_24_BIT            (6)
-#define rHAVE_DISABLE_WILC_UART_BIT   (7)
-
-
-#define WILC_HAVE_SDIO_IRQ_GPIO       (1 << rHAVE_SDIO_IRQ_GPIO_BIT)
-#define WILC_HAVE_USE_PMU             (1 << rHAVE_USE_PMU_BIT)
-#define WILC_HAVE_SLEEP_CLK_SRC_RTC   (1 << rHAVE_SLEEP_CLK_SRC_RTC_BIT)
-#define WILC_HAVE_SLEEP_CLK_SRC_XO    (1 << rHAVE_SLEEP_CLK_SRC_XO_BIT)
-#define WILC_HAVE_EXT_PA_INV_TX_RX    (1 << rHAVE_EXT_PA_INV_TX_RX_BIT)
-#define WILC_HAVE_LEGACY_RF_SETTINGS  (1 << rHAVE_LEGACY_RF_SETTINGS_BIT)
-#define WILC_HAVE_XTAL_24             (1 << rHAVE_XTAL_24_BIT)
-#define WILC_HAVE_DISABLE_WILC_UART    (1 << rHAVE_DISABLE_WILC_UART_BIT)
-
+#define WILC_PERIPH_REG_BASE		0x1000
+#define WILC_CHANGING_VIR_IF		0x108c
+#define WILC_CHIPID			WILC_PERIPH_REG_BASE
+#define WILC_GLB_RESET_0		(WILC_PERIPH_REG_BASE + 0x400)
+#define WILC_PIN_MUX_0			(WILC_PERIPH_REG_BASE + 0x408)
+#define WILC_HOST_TX_CTRL		(WILC_PERIPH_REG_BASE + 0x6c)
+#define WILC_HOST_RX_CTRL_0		(WILC_PERIPH_REG_BASE + 0x70)
+#define WILC_HOST_RX_CTRL_1		(WILC_PERIPH_REG_BASE + 0x74)
+#define WILC_HOST_VMM_CTL		(WILC_PERIPH_REG_BASE + 0x78)
+#define WILC_HOST_RX_CTRL		(WILC_PERIPH_REG_BASE + 0x80)
+#define WILC_HOST_RX_EXTRA_SIZE		(WILC_PERIPH_REG_BASE + 0x84)
+#define WILC_HOST_TX_CTRL_1		(WILC_PERIPH_REG_BASE + 0x88)
+#define WILC_MISC			(WILC_PERIPH_REG_BASE + 0x428)
+#define WILC_INTR_REG_BASE		(WILC_PERIPH_REG_BASE + 0xa00)
+#define WILC_INTR_ENABLE		WILC_INTR_REG_BASE
+#define WILC_INTR2_ENABLE		(WILC_INTR_REG_BASE + 4)
+
+#define WILC_INTR_POLARITY		(WILC_INTR_REG_BASE + 0x10)
+#define WILC_INTR_TYPE			(WILC_INTR_REG_BASE + 0x20)
+#define WILC_INTR_CLEAR			(WILC_INTR_REG_BASE + 0x30)
+#define WILC_INTR_STATUS		(WILC_INTR_REG_BASE + 0x40)
+
+#define WILC_VMM_TBL_SIZE		64
+#define WILC_VMM_TX_TBL_BASE		0x150400
+#define WILC_VMM_RX_TBL_BASE		0x150500
+
+#define WILC_VMM_BASE			0x150000
+#define WILC_VMM_CORE_CTL		WILC_VMM_BASE
+#define WILC_VMM_TBL_CTL		(WILC_VMM_BASE + 0x4)
+#define WILC_VMM_TBL_ENTRY		(WILC_VMM_BASE + 0x8)
+#define WILC_VMM_TBL0_SIZE		(WILC_VMM_BASE + 0xc)
+#define WILC_VMM_TO_HOST_SIZE		(WILC_VMM_BASE + 0x10)
+#define WILC_VMM_CORE_CFG		(WILC_VMM_BASE + 0x14)
+#define WILC_VMM_TBL_ACTIVE		(WILC_VMM_BASE + 040)
+#define WILC_VMM_TBL_STATUS		(WILC_VMM_BASE + 0x44)
+
+#define WILC_SPI_REG_BASE		0xe800
+#define WILC_SPI_CTL			WILC_SPI_REG_BASE
+#define WILC_SPI_MASTER_DMA_ADDR	(WILC_SPI_REG_BASE + 0x4)
+#define WILC_SPI_MASTER_DMA_COUNT	(WILC_SPI_REG_BASE + 0x8)
+#define WILC_SPI_SLAVE_DMA_ADDR		(WILC_SPI_REG_BASE + 0xc)
+#define WILC_SPI_SLAVE_DMA_COUNT	(WILC_SPI_REG_BASE + 0x10)
+#define WILC_SPI_TX_MODE		(WILC_SPI_REG_BASE + 0x20)
+#define WILC_SPI_PROTOCOL_CONFIG	(WILC_SPI_REG_BASE + 0x24)
+#define WILC_SPI_INTR_CTL		(WILC_SPI_REG_BASE + 0x2c)
+
+#define WILC_SPI_PROTOCOL_OFFSET	(WILC_SPI_PROTOCOL_CONFIG - \
+					 WILC_SPI_REG_BASE)
+
+#define WILC_AHB_DATA_MEM_BASE		0x30000
+#define WILC_AHB_SHARE_MEM_BASE		0xd0000
+
+#define WILC_VMM_TBL_RX_SHADOW_BASE	WILC_AHB_SHARE_MEM_BASE
+#define WILC_VMM_TBL_RX_SHADOW_SIZE	256
+
+#define WILC_GP_REG_0			0x149c
+#define WILC_GP_REG_1			0x14a0
+
+#define WILC_HAVE_SDIO_IRQ_GPIO		BIT(0)
+#define WILC_HAVE_USE_PMU		BIT(1)
+#define WILC_HAVE_SLEEP_CLK_SRC_RTC	BIT(2)
+#define WILC_HAVE_SLEEP_CLK_SRC_XO	BIT(3)
+#define WILC_HAVE_EXT_PA_INV_TX_RX	BIT(4)
+#define WILC_HAVE_LEGACY_RF_SETTINGS	BIT(5)
+#define WILC_HAVE_XTAL_24		BIT(6)
+#define WILC_HAVE_DISABLE_WILC_UART	BIT(7)
 
 /********************************************
  *
  *      Wlan Defines
  *
  ********************************************/
-#define WILC_CFG_PKT	1
-#define WILC_NET_PKT 0
-#define WILC_MGMT_PKT 2
+#define WILC_CFG_PKT		1
+#define WILC_NET_PKT		0
+#define WILC_MGMT_PKT		2
 
-#define WILC_CFG_SET 1
-#define WILC_CFG_QUERY 0
-
-#define WILC_CFG_RSP	1
-#define WILC_CFG_RSP_STATUS 2
-#define WILC_CFG_RSP_SCAN 3
-
-#ifdef WILC_SDIO
-#define WILC_PLL_TO	4
-#else
-#define WILC_PLL_TO	2
-#endif
+#define WILC_CFG_SET		1
+#define WILC_CFG_QUERY		0
 
+#define WILC_CFG_RSP		1
+#define WILC_CFG_RSP_STATUS	2
+#define WILC_CFG_RSP_SCAN	3
 
-#define ABORT_INT   BIT(31)
+#define WILC_PLL_TO_SDIO	4
+#define WILC_PLL_TO_SPI		2
+#define ABORT_INT		BIT(31)
 
 /*******************************************/
 /*        E0 and later Interrupt flags.    */
@@ -165,15 +141,15 @@
 /* 20: INT4 flag                           */
 /* 21: INT5 flag                           */
 /*******************************************/
-#define                 IRG_FLAGS_OFFSET 16
-#define IRQ_DMA_WD_CNT_MASK ((1ul << IRG_FLAGS_OFFSET) - 1)
-#define INT_0           (1 << (IRG_FLAGS_OFFSET))
-#define INT_1           (1 << (IRG_FLAGS_OFFSET + 1))
-#define INT_2           (1 << (IRG_FLAGS_OFFSET + 2))
-#define INT_3           (1 << (IRG_FLAGS_OFFSET + 3))
-#define INT_4           (1 << (IRG_FLAGS_OFFSET + 4))
-#define INT_5           (1 << (IRG_FLAGS_OFFSET + 5))
-#define MAX_NUM_INT     (6)
+#define IRG_FLAGS_OFFSET	16
+#define IRQ_DMA_WD_CNT_MASK	((1ul << IRG_FLAGS_OFFSET) - 1)
+#define INT_0			BIT(IRG_FLAGS_OFFSET)
+#define INT_1			BIT(IRG_FLAGS_OFFSET + 1)
+#define INT_2			BIT(IRG_FLAGS_OFFSET + 2)
+#define INT_3			BIT(IRG_FLAGS_OFFSET + 3)
+#define INT_4			BIT(IRG_FLAGS_OFFSET + 4)
+#define INT_5			BIT(IRG_FLAGS_OFFSET + 5)
+#define MAX_NUM_INT		6
 
 /*******************************************/
 /*        E0 and later Interrupt flags.    */
@@ -188,30 +164,28 @@
 /* 7: Select VMM table 2                   */
 /* 8: Enable VMM                           */
 /*******************************************/
-#define CLR_INT0             BIT(0)
-#define CLR_INT1             BIT(1)
-#define CLR_INT2             BIT(2)
-#define CLR_INT3             BIT(3)
-#define CLR_INT4             BIT(4)
-#define CLR_INT5             BIT(5)
-#define SEL_VMM_TBL0         BIT(6)
-#define SEL_VMM_TBL1         BIT(7)
-#define EN_VMM               BIT(8)
-
-#define DATA_INT_EXT	INT_0
-#define PLL_INT_EXT         INT_1
-#define SLEEP_INT_EXT	INT_2
-#define ALL_INT_EXT     (DATA_INT_EXT | PLL_INT_EXT | SLEEP_INT_EXT)
-#define NUM_INT_EXT     (3)
-
-#define DATA_INT_CLR	CLR_INT0
-#define PLL_INT_CLR         CLR_INT1
-#define SLEEP_INT_CLR	CLR_INT2
-
-#define ENABLE_RX_VMM   (SEL_VMM_TBL1 | EN_VMM)
-#define ENABLE_TX_VMM   (SEL_VMM_TBL0 | EN_VMM)
-
-
+#define CLR_INT0		BIT(0)
+#define CLR_INT1		BIT(1)
+#define CLR_INT2		BIT(2)
+#define CLR_INT3		BIT(3)
+#define CLR_INT4		BIT(4)
+#define CLR_INT5		BIT(5)
+#define SEL_VMM_TBL0		BIT(6)
+#define SEL_VMM_TBL1		BIT(7)
+#define EN_VMM			BIT(8)
+
+#define DATA_INT_EXT		INT_0
+#define PLL_INT_EXT		INT_1
+#define SLEEP_INT_EXT		INT_2
+#define ALL_INT_EXT		(DATA_INT_EXT | PLL_INT_EXT | SLEEP_INT_EXT)
+#define NUM_INT_EXT		3
+
+#define DATA_INT_CLR		CLR_INT0
+#define PLL_INT_CLR		CLR_INT1
+#define SLEEP_INT_CLR		CLR_INT2
+
+#define ENABLE_RX_VMM		(SEL_VMM_TBL1 | EN_VMM)
+#define ENABLE_TX_VMM		(SEL_VMM_TBL0 | EN_VMM)
 /*time for expiring the semaphores of cfg packets*/
 #define CFG_PKTS_TIMEOUT	2000
 /********************************************
@@ -231,7 +205,7 @@ struct txq_entry_t {
 	struct txq_entry_t *next;
 	struct txq_entry_t *prev;
 	int type;
-	int tcp_PendingAck_index;
+	int tcp_pending_ack_idx;
 	u8 *buffer;
 	int buffer_size;
 	void *priv;
@@ -250,25 +224,26 @@ struct rxq_entry_t {
  *      Host IF Structure
  *
  ********************************************/
+struct wilc;
+struct wilc_hif_func {
+	int (*hif_init)(struct wilc *);
+	int (*hif_deinit)(struct wilc *);
+	int (*hif_read_reg)(struct wilc *, u32, u32 *);
+	int (*hif_write_reg)(struct wilc *, u32, u32);
+	int (*hif_block_rx)(struct wilc *, u32, u8 *, u32);
+	int (*hif_block_tx)(struct wilc *, u32, u8 *, u32);
+	int (*hif_read_int)(struct wilc *, u32 *);
+	int (*hif_clear_int_ext)(struct wilc *, u32);
+	int (*hif_read_size)(struct wilc *, u32 *);
+	int (*hif_block_tx_ext)(struct wilc *, u32, u8 *, u32);
+	int (*hif_block_rx_ext)(struct wilc *, u32, u8 *, u32);
+	int (*hif_sync_ext)(struct wilc *, int);
+	int (*enable_interrupt)(struct wilc *nic);
+	void (*disable_interrupt)(struct wilc *nic);
+};
 
-typedef struct {
-	int (*hif_init)(wilc_wlan_inp_t *, wilc_debug_func);
-	int (*hif_deinit)(void *);
-	int (*hif_read_reg)(u32, u32 *);
-	int (*hif_write_reg)(u32, u32);
-	int (*hif_block_rx)(u32, u8 *, u32);
-	int (*hif_block_tx)(u32, u8 *, u32);
-	int (*hif_sync)(void);
-	int (*hif_clear_int)(void);
-	int (*hif_read_int)(u32 *);
-	int (*hif_clear_int_ext)(u32);
-	int (*hif_read_size)(u32 *);
-	int (*hif_block_tx_ext)(u32, u8 *, u32);
-	int (*hif_block_rx_ext)(u32, u8 *, u32);
-	int (*hif_sync_ext)(int);
-	void (*hif_set_max_bus_speed)(void);
-	void (*hif_set_default_bus_speed)(void);
-} wilc_hif_func_t;
+extern const struct wilc_hif_func wilc_hif_spi;
+extern const struct wilc_hif_func wilc_hif_sdio;
 
 /********************************************
  *
@@ -276,37 +251,50 @@ typedef struct {
  *
  ********************************************/
 
-#define MAX_CFG_FRAME_SIZE 1468
+#define MAX_CFG_FRAME_SIZE	1468
 
-typedef struct {
+struct wilc_cfg_frame {
 	u8 ether_header[14];
 	u8 ip_header[20];
 	u8 udp_header[8];
 	u8 wid_header[8];
 	u8 frame[MAX_CFG_FRAME_SIZE];
-} wilc_cfg_frame_t;
-
-typedef struct {
-	int (*wlan_tx)(u8 *, u32, wilc_tx_complete_func_t);
-} wilc_wlan_cfg_func_t;
+};
 
-typedef struct {
+struct wilc_cfg_rsp {
 	int type;
 	u32 seq_no;
-} wilc_cfg_rsp_t;
+};
 
-int wilc_wlan_firmware_download(const u8 *buffer, u32 buffer_size);
-int wilc_wlan_start(void);
-int wilc_wlan_stop(void);
+struct wilc;
+
+int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer, u32 buffer_size);
+int wilc_wlan_start(struct wilc *);
+int wilc_wlan_stop(struct wilc *);
 int wilc_wlan_txq_add_net_pkt(struct net_device *dev, void *priv, u8 *buffer,
 			      u32 buffer_size, wilc_tx_complete_func_t func);
-int wilc_wlan_handle_txq(struct net_device *dev, u32 *pu32TxqCount);
-void wilc_handle_isr(void *wilc);
+int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count);
+void wilc_handle_isr(struct wilc *wilc);
 void wilc_wlan_cleanup(struct net_device *dev);
-int wilc_wlan_cfg_set(int start, u32 wid, u8 *buffer, u32 buffer_size,
-		      int commit, u32 drvHandler);
-int wilc_wlan_cfg_get(int start, u32 wid, int commit, u32 drvHandler);
+int wilc_wlan_cfg_set(struct wilc *wilc, int start, u32 wid, u8 *buffer,
+		      u32 buffer_size, int commit, u32 drv_handler);
+int wilc_wlan_cfg_get(struct wilc *wilc, int start, u32 wid, int commit,
+		      u32 drv_handler);
 int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size);
-int wilc_wlan_txq_add_mgmt_pkt(void *priv, u8 *buffer, u32 buffer_size,
-			       wilc_tx_complete_func_t func);
+int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
+			       u32 buffer_size, wilc_tx_complete_func_t func);
+void wilc_chip_sleep_manually(struct wilc *wilc);
+
+void wilc_enable_tcp_ack_filter(bool value);
+int wilc_wlan_get_num_conn_ifcs(struct wilc *);
+int wilc_mac_xmit(struct sk_buff *skb, struct net_device *dev);
+
+int wilc_mac_open(struct net_device *ndev);
+int wilc_mac_close(struct net_device *ndev);
+
+int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *pBSSID);
+void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size);
+
+extern bool wilc_enable_ps;
+
 #endif
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c
index a34a81cdeb5e..b72c77bb35f1 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.c
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c
@@ -275,9 +275,7 @@ static void wilc_wlan_parse_response_frame(u8 *info, int size)
 	while (size > 0) {
 		i = 0;
 		wid = info[0] | (info[1] << 8);
-#ifdef BIG_ENDIAN
-		wid = BYTE_SWAP(wid);
-#endif
+		wid = cpu_to_le32(wid);
 		PRINT_INFO(GENERIC_DBG, "Processing response for %d seq %d\n", wid, seq++);
 		switch ((wid >> 12) & 0x7) {
 		case WID_CHAR:
@@ -300,11 +298,7 @@ static void wilc_wlan_parse_response_frame(u8 *info, int size)
 					break;
 
 				if (g_cfg_hword[i].id == wid) {
-#ifdef BIG_ENDIAN
-					g_cfg_hword[i].val = (info[3] << 8) | (info[4]);
-#else
-					g_cfg_hword[i].val = info[3] | (info[4] << 8);
-#endif
+					g_cfg_hword[i].val = cpu_to_le16(info[3] | (info[4] << 8));
 					break;
 				}
 				i++;
@@ -318,11 +312,7 @@ static void wilc_wlan_parse_response_frame(u8 *info, int size)
 					break;
 
 				if (g_cfg_word[i].id == wid) {
-#ifdef BIG_ENDIAN
-					g_cfg_word[i].val = (info[3] << 24) | (info[4] << 16) | (info[5] << 8) | (info[6]);
-#else
-					g_cfg_word[i].val = info[3] | (info[4] << 8) | (info[5] << 16) | (info[6] << 24);
-#endif
+					g_cfg_word[i].val = cpu_to_le32(info[3] | (info[4] << 8) | (info[5] << 16) | (info[6] << 24));
 					break;
 				}
 				i++;
@@ -505,7 +495,8 @@ int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size)
 	return ret;
 }
 
-int wilc_wlan_cfg_indicate_rx(u8 *frame, int size, wilc_cfg_rsp_t *rsp)
+int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
+			      struct wilc_cfg_rsp *rsp)
 {
 	int ret = 1;
 	u8 msg_type;
@@ -532,17 +523,17 @@ int wilc_wlan_cfg_indicate_rx(u8 *frame, int size, wilc_cfg_rsp_t *rsp)
 		rsp->seq_no = msg_id;
 		/*call host interface info parse as well*/
 		PRINT_INFO(RX_DBG, "Info message received\n");
-		GnrlAsyncInfoReceived(frame - 4, size + 4);
+		wilc_gnrl_async_info_received(wilc, frame - 4, size + 4);
 		break;
 
 	case 'N':
-		NetworkInfoReceived(frame - 4, size + 4);
+		wilc_network_info_received(wilc, frame - 4, size + 4);
 		rsp->type = 0;
 		break;
 
 	case 'S':
 		PRINT_INFO(RX_DBG, "Scan Notification Received\n");
-		host_int_ScanCompleteReceived(frame - 4, size + 4);
+		wilc_scan_complete_received(wilc, frame - 4, size + 4);
 		break;
 
 	default:
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.h b/drivers/staging/wilc1000/wilc_wlan_cfg.h
index 30e60ec4d29f..5f74eb83562f 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.h
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.h
@@ -30,10 +30,12 @@ typedef struct {
 	u8 *str;
 } wilc_cfg_str_t;
 
+struct wilc;
 int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size);
 int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id);
 int wilc_wlan_cfg_get_wid_value(u16 wid, u8 *buffer, u32 buffer_size);
-int wilc_wlan_cfg_indicate_rx(u8 *frame, int size, wilc_cfg_rsp_t *rsp);
+int wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
+			      struct wilc_cfg_rsp *rsp);
 int wilc_wlan_cfg_init(wilc_debug_func func);
 
 #endif
diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h
index be972afe6e62..618903caff54 100644
--- a/drivers/staging/wilc1000/wilc_wlan_if.h
+++ b/drivers/staging/wilc1000/wilc_wlan_if.h
@@ -12,6 +12,7 @@
 
 #include <linux/semaphore.h>
 #include "linux_wlan_common.h"
+#include <linux/netdevice.h>
 
 /********************************************
  *
@@ -71,26 +72,6 @@ typedef struct {
 	u32 block_size;
 } sdio_cmd53_t;
 
-typedef struct {
-	int io_type;
-	int (*io_init)(void *);
-	void (*io_deinit)(void *);
-	union {
-		struct {
-			int (*sdio_cmd52)(sdio_cmd52_t *);
-			int (*sdio_cmd53)(sdio_cmd53_t *);
-			int (*sdio_set_max_speed)(void);
-			int (*sdio_set_default_speed)(void);
-		} sdio;
-		struct {
-			int (*spi_max_speed)(void);
-			int (*spi_tx)(u8 *, u32);
-			int (*spi_rx)(u8 *, u32);
-			int (*spi_trx)(u8 *, u8 *, u32);
-		} spi;
-	} u;
-} wilc_wlan_io_func_t;
-
 #define WILC_MAC_INDICATE_STATUS	0x1
 #define WILC_MAC_STATUS_INIT		-1
 #define WILC_MAC_STATUS_READY		0
@@ -98,15 +79,6 @@ typedef struct {
 
 #define WILC_MAC_INDICATE_SCAN		0x2
 
-typedef struct {
-	void *os_private;
-} wilc_wlan_os_context_t;
-
-typedef struct {
-	wilc_wlan_os_context_t os_context;
-	wilc_wlan_io_func_t io_func;
-} wilc_wlan_inp_t;
-
 struct tx_complete_data {
 	int size;
 	void *buff;
@@ -315,7 +287,7 @@ typedef enum {
 	SW_TRIGGER_ABORT,
 } TX_ABORT_OPTION_T;
 
-enum WID_TYPE {
+enum wid_type {
 	WID_CHAR		= 0,
 	WID_SHORT		= 1,
 	WID_INT			= 2,
@@ -937,10 +909,10 @@ typedef enum {
 	WID_MAX				= 0xFFFF
 } WID_T;
 
-int wilc_wlan_init(wilc_wlan_inp_t *inp);
-
+struct wilc;
+int wilc_wlan_init(struct net_device *dev);
 void wilc_bus_set_max_speed(void);
 void wilc_bus_set_default_speed(void);
-u32 wilc_get_chipid(u8 update);
+u32 wilc_get_chipid(struct wilc *wilc, u8 update);
 
 #endif
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index 444ebed7313a..7551ac25d89d 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -177,9 +177,6 @@ static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb);
 
 static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t *usbin);
 
-static void
-hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout);
-
 static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin,
 			       int urb_status);
 
@@ -3504,7 +3501,7 @@ static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb)
 		rxmeta->signal = usbin->rxfrm.desc.signal - hw->dbmadjust;
 		rxmeta->noise = usbin->rxfrm.desc.silence - hw->dbmadjust;
 
-		prism2sta_ev_rx(wlandev, skb);
+		p80211netdev_rx(wlandev, skb);
 
 		break;
 
@@ -3628,7 +3625,7 @@ static void hfa384x_int_rxmonitor(wlandevice_t *wlandev,
 	}
 
 	/* pass it back up */
-	prism2sta_ev_rx(wlandev, skb);
+	p80211netdev_rx(wlandev, skb);
 }
 
 /*----------------------------------------------------------------
@@ -3674,7 +3671,6 @@ static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t *usbin)
 static void hfa384x_usbout_callback(struct urb *urb)
 {
 	wlandevice_t *wlandev = urb->context;
-	hfa384x_usbout_t *usbout = urb->transfer_buffer;
 
 #ifdef DEBUG_USB
 	dbprint_urb(urb);
@@ -3683,7 +3679,7 @@ static void hfa384x_usbout_callback(struct urb *urb)
 	if (wlandev && wlandev->netdev) {
 		switch (urb->status) {
 		case 0:
-			hfa384x_usbout_tx(wlandev, usbout);
+			prism2sta_ev_alloc(wlandev);
 			break;
 
 		case -EPIPE:
@@ -4038,30 +4034,6 @@ static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
 }
 
 /*----------------------------------------------------------------
-* hfa384x_usbout_tx
-*
-* At this point we have finished a send of a frame.  Mark the URB
-* as available and call ev_alloc to notify higher layers we're
-* ready for more.
-*
-* Arguments:
-*	wlandev		wlan device
-*	usbout		ptr to the usb transfer buffer
-*
-* Returns:
-*	nothing
-*
-* Side effects:
-*
-* Call context:
-*	interrupt
-----------------------------------------------------------------*/
-static void hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout)
-{
-	prism2sta_ev_alloc(wlandev);
-}
-
-/*----------------------------------------------------------------
 * hfa384x_isgood_pdrcore
 *
 * Quick check of PDR codes.
diff --git a/drivers/staging/wlan-ng/p80211netdev.h b/drivers/staging/wlan-ng/p80211netdev.h
index c547e1cb4c0d..810ee68aa18e 100644
--- a/drivers/staging/wlan-ng/p80211netdev.h
+++ b/drivers/staging/wlan-ng/p80211netdev.h
@@ -141,7 +141,6 @@ typedef struct p80211_frmrx_t {
 struct iw_statistics *p80211wext_get_wireless_stats(netdevice_t *dev);
 /* wireless extensions' ioctls */
 extern struct iw_handler_def p80211wext_handler_def;
-int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
 
 /* WEP stuff */
 #define NUM_WEPKEYS 4
diff --git a/drivers/staging/wlan-ng/prism2mgmt.h b/drivers/staging/wlan-ng/prism2mgmt.h
index 16f123959104..7a9f424607b7 100644
--- a/drivers/staging/wlan-ng/prism2mgmt.h
+++ b/drivers/staging/wlan-ng/prism2mgmt.h
@@ -68,7 +68,6 @@ u32 prism2sta_ifstate(wlandevice_t *wlandev, u32 ifstate);
 void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf);
 void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status);
 void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status);
-void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb);
 void prism2sta_ev_alloc(wlandevice_t *wlandev);
 
 int prism2mgmt_mibset_mibget(wlandevice_t *wlandev, void *msgp);
diff --git a/drivers/staging/wlan-ng/prism2mib.c b/drivers/staging/wlan-ng/prism2mib.c
index b4a15ef3a405..cdda07d1c268 100644
--- a/drivers/staging/wlan-ng/prism2mib.c
+++ b/drivers/staging/wlan-ng/prism2mib.c
@@ -660,7 +660,6 @@ static int prism2mib_fragmentationthreshold(struct mibrec *mib,
 					    struct p80211msg_dot11req_mibset *msg,
 					    void *data)
 {
-	int result;
 	u32 *uint32 = (u32 *) data;
 
 	if (!isget)
@@ -672,9 +671,7 @@ static int prism2mib_fragmentationthreshold(struct mibrec *mib,
 			return 0;
 		}
 
-	result = prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
-
-	return result;
+	return prism2mib_uint32(mib, isget, wlandev, hw, msg, data);
 }
 
 /*----------------------------------------------------------------
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index c57f48a1d8df..131223afd918 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -1837,27 +1837,6 @@ void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
 }
 
 /*
- * prism2sta_ev_rx
- *
- * Handles the Rx event.
- *
- * Arguments:
- *	wlandev		wlan device structure
- *
- * Returns:
- *	nothing
- *
- * Side effects:
- *
- * Call context:
- *	interrupt
- */
-void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
-{
-	p80211netdev_rx(wlandev, skb);
-}
-
-/*
  * prism2sta_ev_alloc
  *
  * Handles the Alloc event.
diff --git a/drivers/thermal/intel_quark_dts_thermal.c b/drivers/thermal/intel_quark_dts_thermal.c
index 5ed90e6c8a64..5d33b350da1c 100644
--- a/drivers/thermal/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel_quark_dts_thermal.c
@@ -125,8 +125,8 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
 	struct soc_sensor_entry *aux_entry = tzd->devdata;
 	int ret;
 
-	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_ENABLE, &out);
+	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			    QRK_DTS_REG_OFFSET_ENABLE, &out);
 	if (ret)
 		return ret;
 
@@ -137,8 +137,8 @@ static int soc_dts_enable(struct thermal_zone_device *tzd)
 
 	if (!aux_entry->locked) {
 		out |= QRK_DTS_ENABLE_BIT;
-		ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_WRITE,
-					QRK_DTS_REG_OFFSET_ENABLE, out);
+		ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, MBI_REG_WRITE,
+				     QRK_DTS_REG_OFFSET_ENABLE, out);
 		if (ret)
 			return ret;
 
@@ -158,8 +158,8 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
 	struct soc_sensor_entry *aux_entry = tzd->devdata;
 	int ret;
 
-	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_ENABLE, &out);
+	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			    QRK_DTS_REG_OFFSET_ENABLE, &out);
 	if (ret)
 		return ret;
 
@@ -170,8 +170,8 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
 
 	if (!aux_entry->locked) {
 		out &= ~QRK_DTS_ENABLE_BIT;
-		ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_WRITE,
-					QRK_DTS_REG_OFFSET_ENABLE, out);
+		ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, MBI_REG_WRITE,
+				     QRK_DTS_REG_OFFSET_ENABLE, out);
 
 		if (ret)
 			return ret;
@@ -192,8 +192,8 @@ static int _get_trip_temp(int trip, int *temp)
 	u32 out;
 
 	mutex_lock(&dts_update_mutex);
-	status = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-				QRK_DTS_REG_OFFSET_PTPS, &out);
+	status = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			       QRK_DTS_REG_OFFSET_PTPS, &out);
 	mutex_unlock(&dts_update_mutex);
 
 	if (status)
@@ -236,8 +236,8 @@ static int update_trip_temp(struct soc_sensor_entry *aux_entry,
 		goto failed;
 	}
 
-	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-				QRK_DTS_REG_OFFSET_PTPS, &store_ptps);
+	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			    QRK_DTS_REG_OFFSET_PTPS, &store_ptps);
 	if (ret)
 		goto failed;
 
@@ -262,8 +262,8 @@ static int update_trip_temp(struct soc_sensor_entry *aux_entry,
 	out |= (temp_out & QRK_DTS_MASK_TP_THRES) <<
 		(trip * QRK_DTS_SHIFT_TP);
 
-	ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_WRITE,
-				QRK_DTS_REG_OFFSET_PTPS, out);
+	ret = iosf_mbi_write(QRK_MBI_UNIT_RMU, MBI_REG_WRITE,
+			     QRK_DTS_REG_OFFSET_PTPS, out);
 
 failed:
 	mutex_unlock(&dts_update_mutex);
@@ -294,8 +294,8 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
 	int ret;
 
 	mutex_lock(&dts_update_mutex);
-	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_TEMP, &out);
+	ret = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			    QRK_DTS_REG_OFFSET_TEMP, &out);
 	mutex_unlock(&dts_update_mutex);
 
 	if (ret)
@@ -350,13 +350,13 @@ static void free_soc_dts(struct soc_sensor_entry *aux_entry)
 	if (aux_entry) {
 		if (!aux_entry->locked) {
 			mutex_lock(&dts_update_mutex);
-			iosf_mbi_write(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_WRITE,
-					QRK_DTS_REG_OFFSET_ENABLE,
-					aux_entry->store_dts_enable);
+			iosf_mbi_write(QRK_MBI_UNIT_RMU, MBI_REG_WRITE,
+				       QRK_DTS_REG_OFFSET_ENABLE,
+				       aux_entry->store_dts_enable);
 
-			iosf_mbi_write(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_WRITE,
-					QRK_DTS_REG_OFFSET_PTPS,
-					aux_entry->store_ptps);
+			iosf_mbi_write(QRK_MBI_UNIT_RMU, MBI_REG_WRITE,
+				       QRK_DTS_REG_OFFSET_PTPS,
+				       aux_entry->store_ptps);
 			mutex_unlock(&dts_update_mutex);
 		}
 		thermal_zone_device_unregister(aux_entry->tzone);
@@ -378,9 +378,8 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	}
 
 	/* Check if DTS register is locked */
-	err = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_LOCK,
-					&out);
+	err = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+			    QRK_DTS_REG_OFFSET_LOCK, &out);
 	if (err)
 		goto err_ret;
 
@@ -395,16 +394,16 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 	/* Store DTS default state if DTS registers are not locked */
 	if (!aux_entry->locked) {
 		/* Store DTS default enable for restore on exit */
-		err = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_ENABLE,
-					&aux_entry->store_dts_enable);
+		err = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+				    QRK_DTS_REG_OFFSET_ENABLE,
+				    &aux_entry->store_dts_enable);
 		if (err)
 			goto err_ret;
 
 		/* Store DTS default PTPS register for restore on exit */
-		err = iosf_mbi_read(QRK_MBI_UNIT_RMU, QRK_MBI_RMU_READ,
-					QRK_DTS_REG_OFFSET_PTPS,
-					&aux_entry->store_ptps);
+		err = iosf_mbi_read(QRK_MBI_UNIT_RMU, MBI_REG_READ,
+				    QRK_DTS_REG_OFFSET_PTPS,
+				    &aux_entry->store_ptps);
 		if (err)
 			goto err_ret;
 	}
diff --git a/drivers/thermal/intel_soc_dts_iosf.c b/drivers/thermal/intel_soc_dts_iosf.c
index 5841d1d72996..f72e1db3216f 100644
--- a/drivers/thermal/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel_soc_dts_iosf.c
@@ -90,7 +90,7 @@ static int sys_get_trip_temp(struct thermal_zone_device *tzd, int trip,
 	dts = tzd->devdata;
 	sensors = dts->sensors;
 	mutex_lock(&sensors->dts_update_lock);
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_PTPS, &out);
 	mutex_unlock(&sensors->dts_update_lock);
 	if (status)
@@ -124,27 +124,27 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
 
 	temp_out = (sensors->tj_max - temp) / 1000;
 
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_PTPS, &store_ptps);
 	if (status)
 		return status;
 
 	out = (store_ptps & ~(0xFF << (thres_index * 8)));
 	out |= (temp_out & 0xFF) << (thres_index * 8);
-	status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 				SOC_DTS_OFFSET_PTPS, out);
 	if (status)
 		return status;
 
 	pr_debug("update_trip_temp PTPS = %x\n", out);
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_PTMC, &out);
 	if (status)
 		goto err_restore_ptps;
 
 	store_ptmc = out;
 
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_TE_AUX0 + thres_index,
 			       &te_out);
 	if (status)
@@ -167,12 +167,12 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
 			out &= ~SOC_DTS_AUX0_ENABLE_BIT;
 		te_out &= ~int_enable_bit;
 	}
-	status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 				SOC_DTS_OFFSET_PTMC, out);
 	if (status)
 		goto err_restore_te_out;
 
-	status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 				SOC_DTS_TE_AUX0 + thres_index,
 				te_out);
 	if (status)
@@ -182,13 +182,13 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
 
 	return 0;
 err_restore_te_out:
-	iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 		       SOC_DTS_OFFSET_PTMC, store_te_out);
 err_restore_ptmc:
-	iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 		       SOC_DTS_OFFSET_PTMC, store_ptmc);
 err_restore_ptps:
-	iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 		       SOC_DTS_OFFSET_PTPS, store_ptps);
 	/* Nothing we can do if restore fails */
 
@@ -235,7 +235,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
 
 	dts = tzd->devdata;
 	sensors = dts->sensors;
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_TEMP, &out);
 	if (status)
 		return status;
@@ -259,14 +259,14 @@ static int soc_dts_enable(int id)
 	u32 out;
 	int ret;
 
-	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			    SOC_DTS_OFFSET_ENABLE, &out);
 	if (ret)
 		return ret;
 
 	if (!(out & BIT(id))) {
 		out |= BIT(id);
-		ret = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+		ret = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 				     SOC_DTS_OFFSET_ENABLE, out);
 		if (ret)
 			return ret;
@@ -278,7 +278,7 @@ static int soc_dts_enable(int id)
 static void remove_dts_thermal_zone(struct intel_soc_dts_sensor_entry *dts)
 {
 	if (dts) {
-		iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+		iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 			       SOC_DTS_OFFSET_ENABLE, dts->store_status);
 		thermal_zone_device_unregister(dts->tzone);
 	}
@@ -296,9 +296,8 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
 	int i;
 
 	/* Store status to restor on exit */
-	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
-			    SOC_DTS_OFFSET_ENABLE,
-			    &dts->store_status);
+	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
+			    SOC_DTS_OFFSET_ENABLE, &dts->store_status);
 	if (ret)
 		goto err_ret;
 
@@ -311,7 +310,7 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
 	}
 
 	/* Check if the writable trip we provide is not used by BIOS */
-	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			    SOC_DTS_OFFSET_PTPS, &store_ptps);
 	if (ret)
 		trip_mask = 0;
@@ -374,19 +373,19 @@ void intel_soc_dts_iosf_interrupt_handler(struct intel_soc_dts_sensors *sensors)
 
 	spin_lock_irqsave(&sensors->intr_notify_lock, flags);
 
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_PTMC, &ptmc_out);
 	ptmc_out |= SOC_DTS_PTMC_APIC_DEASSERT_BIT;
-	status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+	status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 				SOC_DTS_OFFSET_PTMC, ptmc_out);
 
-	status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
+	status = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
 			       SOC_DTS_OFFSET_PTTSS, &sticky_out);
 	pr_debug("status %d PTTSS %x\n", status, sticky_out);
 	if (sticky_out & SOC_DTS_TRIP_MASK) {
 		int i;
 		/* reset sticky bit */
-		status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
+		status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
 					SOC_DTS_OFFSET_PTTSS, sticky_out);
 		spin_unlock_irqrestore(&sensors->intr_notify_lock, flags);
 
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index e53d9a512c6d..2caaf5a2516d 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -32,7 +32,6 @@
 #include <linux/delay.h>
 
 #undef SERIAL_PARANOIA_CHECK
-#define SERIAL_DO_RESTART
 
 /* Set of debugging defines */
 
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index d4a1331675ed..abbed201dc74 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -292,14 +292,14 @@ static void cyz_rx_restart(unsigned long);
 static struct timer_list cyz_rx_full_timer[NR_PORTS];
 #endif				/* CONFIG_CYZ_INTR */
 
-static inline void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
+static void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
 {
 	struct cyclades_card *card = port->card;
 
 	cy_writeb(port->u.cyy.base_addr + (reg << card->bus_index), val);
 }
 
-static inline u8 cyy_readb(struct cyclades_port *port, u32 reg)
+static u8 cyy_readb(struct cyclades_port *port, u32 reg)
 {
 	struct cyclades_card *card = port->card;
 
@@ -321,7 +321,7 @@ static inline bool cyz_fpga_loaded(struct cyclades_card *card)
 	return __cyz_fpga_loaded(card->ctl_addr.p9060);
 }
 
-static inline bool cyz_is_loaded(struct cyclades_card *card)
+static bool cyz_is_loaded(struct cyclades_card *card)
 {
 	struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS;
 
@@ -329,7 +329,7 @@ static inline bool cyz_is_loaded(struct cyclades_card *card)
 			readl(&fw_id->signature) == ZFIRM_ID;
 }
 
-static inline int serial_paranoia_check(struct cyclades_port *info,
+static int serial_paranoia_check(struct cyclades_port *info,
 		const char *name, const char *routine)
 {
 #ifdef SERIAL_PARANOIA_CHECK
diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c
index 2054427992e0..99875949bfb7 100644
--- a/drivers/tty/isicom.c
+++ b/drivers/tty/isicom.c
@@ -220,7 +220,7 @@ static struct isi_port  isi_ports[PORT_COUNT];
  *	it wants to talk.
  */
 
-static inline int WaitTillCardIsFree(unsigned long base)
+static int WaitTillCardIsFree(unsigned long base)
 {
 	unsigned int count = 0;
 	unsigned int a = in_atomic(); /* do we run under spinlock? */
@@ -280,7 +280,7 @@ static void raise_dtr(struct isi_port *port)
 }
 
 /* card->lock HAS to be held */
-static inline void drop_dtr(struct isi_port *port)
+static void drop_dtr(struct isi_port *port)
 {
 	struct isi_board *card = port->card;
 	unsigned long base = card->base;
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 14c54e041065..92982d7c0489 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -155,7 +155,6 @@ struct mon_str {
 #define LOWWAIT 	2
 #define EMPTYWAIT	3
 
-#define SERIAL_DO_RESTART
 
 #define WAKEUP_CHARS		256
 
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index e49c2bce551d..d9a5fc28fef4 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -162,12 +162,23 @@ static inline int tty_put_user(struct tty_struct *tty, unsigned char x,
 	return put_user(x, ptr);
 }
 
-static inline int tty_copy_to_user(struct tty_struct *tty,
-					void __user *to,
-					const void *from,
-					unsigned long n)
+static int tty_copy_to_user(struct tty_struct *tty, void __user *to,
+			    size_t tail, size_t n)
 {
 	struct n_tty_data *ldata = tty->disc_data;
+	size_t size = N_TTY_BUF_SIZE - tail;
+	const void *from = read_buf_addr(ldata, tail);
+	int uncopied;
+
+	if (n > size) {
+		tty_audit_add_data(tty, from, size, ldata->icanon);
+		uncopied = copy_to_user(to, from, size);
+		if (uncopied)
+			return uncopied;
+		to += size;
+		n -= size;
+		from = ldata->read_buf;
+	}
 
 	tty_audit_add_data(tty, from, n, ldata->icanon);
 	return copy_to_user(to, from, n);
@@ -1201,9 +1212,7 @@ static void n_tty_receive_overrun(struct tty_struct *tty)
 	ldata->num_overrun++;
 	if (time_after(jiffies, ldata->overrun_time + HZ) ||
 			time_after(ldata->overrun_time, jiffies)) {
-		printk(KERN_WARNING "%s: %d input overrun(s)\n",
-			tty_name(tty),
-			ldata->num_overrun);
+		tty_warn(tty, "%d input overrun(s)\n", ldata->num_overrun);
 		ldata->overrun_time = jiffies;
 		ldata->num_overrun = 0;
 	}
@@ -1486,8 +1495,7 @@ n_tty_receive_char_flagged(struct tty_struct *tty, unsigned char c, char flag)
 		n_tty_receive_overrun(tty);
 		break;
 	default:
-		printk(KERN_ERR "%s: unknown flag %d\n",
-		       tty_name(tty), flag);
+		tty_err(tty, "unknown flag %d\n", flag);
 		break;
 	}
 }
@@ -2006,11 +2014,11 @@ static int copy_from_read_buf(struct tty_struct *tty,
 	n = min(head - ldata->read_tail, N_TTY_BUF_SIZE - tail);
 	n = min(*nr, n);
 	if (n) {
-		retval = copy_to_user(*b, read_buf_addr(ldata, tail), n);
+		const unsigned char *from = read_buf_addr(ldata, tail);
+		retval = copy_to_user(*b, from, n);
 		n -= retval;
-		is_eof = n == 1 && read_buf(ldata, tail) == EOF_CHAR(tty);
-		tty_audit_add_data(tty, read_buf_addr(ldata, tail), n,
-				ldata->icanon);
+		is_eof = n == 1 && *from == EOF_CHAR(tty);
+		tty_audit_add_data(tty, from, n, ldata->icanon);
 		smp_store_release(&ldata->read_tail, ldata->read_tail + n);
 		/* Turn single EOF into zero-length read */
 		if (L_EXTPROC(tty) && ldata->icanon && is_eof &&
@@ -2072,12 +2080,10 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 	if (eol == N_TTY_BUF_SIZE && more) {
 		/* scan wrapped without finding set bit */
 		eol = find_next_bit(ldata->read_flags, more, 0);
-		if (eol != more)
-			found = 1;
-	} else if (eol != size)
-		found = 1;
+		found = eol != more;
+	} else
+		found = eol != size;
 
-	size = N_TTY_BUF_SIZE - tail;
 	n = eol - tail;
 	if (n > N_TTY_BUF_SIZE)
 		n += N_TTY_BUF_SIZE;
@@ -2088,17 +2094,10 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 		n = c;
 	}
 
-	n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu size:%zu more:%zu\n",
-		    __func__, eol, found, n, c, size, more);
-
-	if (n > size) {
-		ret = tty_copy_to_user(tty, *b, read_buf_addr(ldata, tail), size);
-		if (ret)
-			return -EFAULT;
-		ret = tty_copy_to_user(tty, *b + size, ldata->read_buf, n - size);
-	} else
-		ret = tty_copy_to_user(tty, *b, read_buf_addr(ldata, tail), n);
+	n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu tail:%zu more:%zu\n",
+		    __func__, eol, found, n, c, tail, more);
 
+	ret = tty_copy_to_user(tty, *b, tail, n);
 	if (ret)
 		return -EFAULT;
 	*b += n;
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a45660f62db5..b3110040164a 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -788,7 +788,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	if (retval)
 		goto err_release;
 
-	tty_debug_hangup(tty, "(tty count=%d)\n", tty->count);
+	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	tty_unlock(tty);
 	return 0;
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index 0140ba4aacde..0982c1a44187 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/drivers/tty/serial/68328serial.c
@@ -157,7 +157,7 @@ static void change_speed(struct m68k_serial *info, struct tty_struct *tty);
 #endif
 
 
-static int m68328_console_initted = 0;
+static int m68328_console_initted;
 static int m68328_console_baud    = CONSOLE_BAUD_RATE;
 static int m68328_console_cbaud   = DEFAULT_CBAUD;
 
@@ -274,8 +274,8 @@ static void receive_chars(struct m68k_serial *info, unsigned short rx)
 #endif	
 		ch = GET_FIELD(rx, URX_RXDATA);
 	
-		if(info->is_cons) {
-			if(URX_BREAK & rx) { /* whee, break received */
+		if (info->is_cons) {
+			if (URX_BREAK & rx) { /* whee, break received */
 				return;
 #ifdef CONFIG_MAGIC_SYSRQ
 			} else if (ch == 0x10) { /* ^P */
@@ -302,7 +302,7 @@ static void receive_chars(struct m68k_serial *info, unsigned short rx)
 
 		tty_insert_flip_char(&info->tport, ch, flag);
 #ifndef CONFIG_XCOPILOT_BUGS
-	} while((rx = uart->urx.w) & URX_DATA_READY);
+	} while ((rx = uart->urx.w) & URX_DATA_READY);
 #endif
 
 	tty_schedule_flip(&info->tport);
@@ -330,7 +330,7 @@ static void transmit_chars(struct m68k_serial *info, struct tty_struct *tty)
 	info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
 	info->xmit_cnt--;
 
-	if(info->xmit_cnt <= 0) {
+	if (info->xmit_cnt <= 0) {
 		/* All done for now... TX ints off */
 		uart->ustcnt &= ~USTCNT_TX_INTR_MASK;
 		goto clear_and_return;
@@ -452,45 +452,45 @@ struct {
 }
 #ifndef CONFIG_M68VZ328
  hw_baud_table[18] = {
-	{0,0}, /* 0 */
-	{0,0}, /* 50 */
-	{0,0}, /* 75 */
-	{0,0}, /* 110 */
-	{0,0}, /* 134 */
-	{0,0}, /* 150 */
-	{0,0}, /* 200 */
-	{7,0x26}, /* 300 */
-	{6,0x26}, /* 600 */
-	{5,0x26}, /* 1200 */
-	{0,0}, /* 1800 */
-	{4,0x26}, /* 2400 */
-	{3,0x26}, /* 4800 */
-	{2,0x26}, /* 9600 */
-	{1,0x26}, /* 19200 */
-	{0,0x26}, /* 38400 */
-	{1,0x38}, /* 57600 */
-	{0,0x38}, /* 115200 */
+	{0, 0}, /* 0 */
+	{0, 0}, /* 50 */
+	{0, 0}, /* 75 */
+	{0, 0}, /* 110 */
+	{0, 0}, /* 134 */
+	{0, 0}, /* 150 */
+	{0, 0}, /* 200 */
+	{7, 0x26}, /* 300 */
+	{6, 0x26}, /* 600 */
+	{5, 0x26}, /* 1200 */
+	{0, 0}, /* 1800 */
+	{4, 0x26}, /* 2400 */
+	{3, 0x26}, /* 4800 */
+	{2, 0x26}, /* 9600 */
+	{1, 0x26}, /* 19200 */
+	{0, 0x26}, /* 38400 */
+	{1, 0x38}, /* 57600 */
+	{0, 0x38}, /* 115200 */
 };
 #else
  hw_baud_table[18] = {
-                 {0,0}, /* 0 */
-                 {0,0}, /* 50 */
-                 {0,0}, /* 75 */
-                 {0,0}, /* 110 */
-                 {0,0}, /* 134 */
-                 {0,0}, /* 150 */
-                 {0,0}, /* 200 */
-                 {0,0}, /* 300 */
-                 {7,0x26}, /* 600 */
-                 {6,0x26}, /* 1200 */
-                 {0,0}, /* 1800 */
-                 {5,0x26}, /* 2400 */
-                 {4,0x26}, /* 4800 */
-                 {3,0x26}, /* 9600 */
-                 {2,0x26}, /* 19200 */
-                 {1,0x26}, /* 38400 */
-                 {0,0x26}, /* 57600 */
-                 {1,0x38}, /* 115200 */
+                 {0, 0}, /* 0 */
+                 {0, 0}, /* 50 */
+                 {0, 0}, /* 75 */
+                 {0, 0}, /* 110 */
+                 {0, 0}, /* 134 */
+                 {0, 0}, /* 150 */
+                 {0, 0}, /* 200 */
+                 {0, 0}, /* 300 */
+                 {7, 0x26}, /* 600 */
+                 {6, 0x26}, /* 1200 */
+                 {0, 0}, /* 1800 */
+                 {5, 0x26}, /* 2400 */
+                 {4, 0x26}, /* 4800 */
+                 {3, 0x26}, /* 9600 */
+                 {2, 0x26}, /* 19200 */
+                 {1, 0x26}, /* 38400 */
+                 {0, 0x26}, /* 57600 */
+                 {1, 0x38}, /* 115200 */
 }; 
 #endif
 /* rate = 1036800 / ((65 - prescale) * (1<<divider)) */
@@ -538,7 +538,7 @@ static void change_speed(struct m68k_serial *info, struct tty_struct *tty)
 	
 #ifdef CONFIG_SERIAL_68328_RTS_CTS
 	if (cflag & CRTSCTS) {
-		uart->utx.w &= ~ UTX_NOCTS;
+		uart->utx.w &= ~UTX_NOCTS;
 	} else {
 		uart->utx.w |= UTX_NOCTS;
 	}
@@ -591,8 +591,8 @@ void console_print_68328(const char *p)
 {
 	char c;
 	
-	while((c=*(p++)) != 0) {
-		if(c == '\n')
+	while ((c = *(p++)) != 0) {
+		if (c == '\n')
 			rs_put_char('\r');
 		rs_put_char(c);
 	}
@@ -624,7 +624,7 @@ static void rs_flush_chars(struct tty_struct *tty)
 	if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))
 		return;
 #ifndef USE_INTS
-	for(;;) {
+	for (;;) {
 #endif
 
 	/* Enable transmitter */
@@ -659,9 +659,9 @@ static void rs_flush_chars(struct tty_struct *tty)
 	local_irq_restore(flags);
 }
 
-extern void console_printn(const char * b, int count);
+extern void console_printn(const char *b, int count);
 
-static int rs_write(struct tty_struct * tty,
+static int rs_write(struct tty_struct *tty,
 		    const unsigned char *buf, int count)
 {
 	int	c, total = 0;
@@ -700,7 +700,7 @@ static int rs_write(struct tty_struct * tty,
 		/* Enable transmitter */
 		local_irq_disable();		
 #ifndef USE_INTS
-		while(info->xmit_cnt) {
+		while (info->xmit_cnt) {
 #endif
 
 		uart->ustcnt |= USTCNT_TXEN;
@@ -767,7 +767,7 @@ static void rs_flush_buffer(struct tty_struct *tty)
  * incoming characters should be throttled.
  * ------------------------------------------------------------
  */
-static void rs_throttle(struct tty_struct * tty)
+static void rs_throttle(struct tty_struct *tty)
 {
 	struct m68k_serial *info = (struct m68k_serial *)tty->driver_data;
 
@@ -780,7 +780,7 @@ static void rs_throttle(struct tty_struct * tty)
 	/* Turn off RTS line (do this atomic) */
 }
 
-static void rs_unthrottle(struct tty_struct * tty)
+static void rs_unthrottle(struct tty_struct *tty)
 {
 	struct m68k_serial *info = (struct m68k_serial *)tty->driver_data;
 
@@ -803,8 +803,8 @@ static void rs_unthrottle(struct tty_struct * tty)
  * ------------------------------------------------------------
  */
 
-static int get_serial_info(struct m68k_serial * info,
-			   struct serial_struct * retinfo)
+static int get_serial_info(struct m68k_serial *info,
+			   struct serial_struct *retinfo)
 {
 	struct serial_struct tmp;
   
@@ -827,7 +827,7 @@ static int get_serial_info(struct m68k_serial * info,
 }
 
 static int set_serial_info(struct m68k_serial *info, struct tty_struct *tty,
-			   struct serial_struct * new_info)
+			   struct serial_struct *new_info)
 {
 	struct tty_port *port = &info->tport;
 	struct serial_struct new_serial;
@@ -883,7 +883,7 @@ check_and_exit:
  * 	    transmit holding register is empty.  This functionality
  * 	    allows an RS485 driver to be written in user space. 
  */
-static int get_lsr_info(struct m68k_serial * info, unsigned int *value)
+static int get_lsr_info(struct m68k_serial *info, unsigned int *value)
 {
 #ifdef CONFIG_SERIAL_68328_RTS_CTS
 	m68328_uart *uart = &uart_addr[info->line];
@@ -904,7 +904,7 @@ static int get_lsr_info(struct m68k_serial * info, unsigned int *value)
 /*
  * This routine sends a break character out the serial port.
  */
-static void send_break(struct m68k_serial * info, unsigned int duration)
+static void send_break(struct m68k_serial *info, unsigned int duration)
 {
 	m68328_uart *uart = &uart_addr[info->line];
         unsigned long flags;
@@ -922,7 +922,7 @@ static void send_break(struct m68k_serial * info, unsigned int duration)
 static int rs_ioctl(struct tty_struct *tty,
 		    unsigned int cmd, unsigned long arg)
 {
-	struct m68k_serial * info = (struct m68k_serial *)tty->driver_data;
+	struct m68k_serial *info = (struct m68k_serial *)tty->driver_data;
 	int retval;
 
 	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
@@ -992,9 +992,9 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
  * that IRQ if nothing is left in the chain.
  * ------------------------------------------------------------
  */
-static void rs_close(struct tty_struct *tty, struct file * filp)
+static void rs_close(struct tty_struct *tty, struct file *filp)
 {
-	struct m68k_serial * info = (struct m68k_serial *)tty->driver_data;
+	struct m68k_serial *info = (struct m68k_serial *)tty->driver_data;
 	struct tty_port *port = &info->tport;
 	m68328_uart *uart = &uart_addr[info->line];
 	unsigned long flags;
@@ -1079,7 +1079,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
  */
 void rs_hangup(struct tty_struct *tty)
 {
-	struct m68k_serial * info = (struct m68k_serial *)tty->driver_data;
+	struct m68k_serial *info = (struct m68k_serial *)tty->driver_data;
 	
 	if (serial_paranoia_check(info, tty->name, "rs_hangup"))
 		return;
@@ -1098,7 +1098,7 @@ void rs_hangup(struct tty_struct *tty)
  * the IRQ chain.   It also performs the serial-specific
  * initialization for the tty structure.
  */
-int rs_open(struct tty_struct *tty, struct file * filp)
+int rs_open(struct tty_struct *tty, struct file *filp)
 {
 	struct m68k_serial	*info;
 	int retval;
@@ -1180,7 +1180,7 @@ rs68328_init(void)
 
 	local_irq_save(flags);
 
-	for(i=0;i<NR_PORTS;i++) {
+	for (i = 0; i < NR_PORTS; i++) {
 
 	    info = &m68k_soft[i];
 	    tty_port_init(&info->tport);
@@ -1198,7 +1198,7 @@ rs68328_init(void)
 	    printk(" is a builtin MC68328 UART\n");
 	    
 #ifdef CONFIG_M68VZ328
-		if (i > 0 )
+		if (i > 0)
 			PJSEL &= 0xCF;  /* PSW enable second port output */
 #endif
 
@@ -1263,7 +1263,7 @@ int m68328_console_setup(struct console *cp, char *arg)
 		return(-1);
 
 	if (arg)
-		n = simple_strtoul(arg,NULL,0);
+		n = simple_strtoul(arg, NULL, 0);
 
 	for (i = 0; i < ARRAY_SIZE(baud_table); i++)
 		if (baud_table[i] == n)
@@ -1279,7 +1279,7 @@ int m68328_console_setup(struct console *cp, char *arg)
 	}
 
 	m68328_set_baud(); /* make sure baud rate changes */
-	return(0);
+	return 0;
 }
 
 
@@ -1298,7 +1298,7 @@ void m68328_console_write (struct console *co, const char *str,
     while (count--) {
         if (*str == '\n')
            rs_put_char('\r');
-        rs_put_char( *str++ );
+        rs_put_char(*str++);
     }
 }
 
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 39126460c1f5..c9720a97a977 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -620,7 +620,7 @@ static int univ8250_console_setup(struct console *co, char *options)
  *	@options: ptr to option string from console command line
  *
  *	Only attempts to match console command lines of the form:
- *	    console=uart[8250],io|mmio|mmio32,<addr>[,<options>]
+ *	    console=uart[8250],io|mmio|mmio16|mmio32,<addr>[,<options>]
  *	    console=uart[8250],0x<addr>[,<options>]
  *	This form is used to register an initial earlycon boot console and
  *	replace it with the serial8250_console at 8250 driver init.
@@ -650,8 +650,9 @@ static int univ8250_console_match(struct console *co, char *name, int idx,
 
 		if (port->iotype != iotype)
 			continue;
-		if ((iotype == UPIO_MEM || iotype == UPIO_MEM32) &&
-		    (port->mapbase != addr))
+		if ((iotype == UPIO_MEM || iotype == UPIO_MEM16 ||
+		     iotype == UPIO_MEM32 || iotype == UPIO_MEM32BE)
+		    && (port->mapbase != addr))
 			continue;
 		if (iotype == UPIO_PORT && port->iobase != addr)
 			continue;
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index ceb85792a5cf..af62131af21e 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -42,6 +42,8 @@ static unsigned int __init serial8250_early_in(struct uart_port *port, int offse
 	switch (port->iotype) {
 	case UPIO_MEM:
 		return readb(port->membase + offset);
+	case UPIO_MEM16:
+		return readw(port->membase + (offset << 1));
 	case UPIO_MEM32:
 		return readl(port->membase + (offset << 2));
 	case UPIO_MEM32BE:
@@ -59,6 +61,9 @@ static void __init serial8250_early_out(struct uart_port *port, int offset, int
 	case UPIO_MEM:
 		writeb(value, port->membase + offset);
 		break;
+	case UPIO_MEM16:
+		writew(value, port->membase + (offset << 1));
+		break;
 	case UPIO_MEM32:
 		writel(value, port->membase + (offset << 2));
 		break;
@@ -73,43 +78,27 @@ static void __init serial8250_early_out(struct uart_port *port, int offset, int
 
 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
 
-static void __init wait_for_xmitr(struct uart_port *port)
+static void __init serial_putc(struct uart_port *port, int c)
 {
 	unsigned int status;
 
+	serial8250_early_out(port, UART_TX, c);
+
 	for (;;) {
 		status = serial8250_early_in(port, UART_LSR);
 		if ((status & BOTH_EMPTY) == BOTH_EMPTY)
-			return;
+			break;
 		cpu_relax();
 	}
 }
 
-static void __init serial_putc(struct uart_port *port, int c)
-{
-	wait_for_xmitr(port);
-	serial8250_early_out(port, UART_TX, c);
-}
-
 static void __init early_serial8250_write(struct console *console,
 					const char *s, unsigned int count)
 {
 	struct earlycon_device *device = console->data;
 	struct uart_port *port = &device->port;
-	unsigned int ier;
-
-	/* Save the IER and disable interrupts preserving the UUE bit */
-	ier = serial8250_early_in(port, UART_IER);
-	if (ier)
-		serial8250_early_out(port, UART_IER, ier & UART_IER_UUE);
 
 	uart_console_write(port, s, count, serial_putc);
-
-	/* Wait for transmitter to become empty and restore the IER */
-	wait_for_xmitr(port);
-
-	if (ier)
-		serial8250_early_out(port, UART_IER, ier);
 }
 
 static void __init init_port(struct earlycon_device *device)
diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/serial/8250/8250_ingenic.c
index 49394b4c5cfd..d6e1ec9b4fde 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -48,6 +48,7 @@ static const struct of_device_id of_match[];
 #define UART_MCR_MDCE	BIT(7)
 #define UART_MCR_FCM	BIT(6)
 
+#ifdef CONFIG_SERIAL_EARLYCON
 static struct earlycon_device *early_device;
 
 static uint8_t __init early_in(struct uart_port *port, int offset)
@@ -140,6 +141,7 @@ OF_EARLYCON_DECLARE(jz4775_uart, "ingenic,jz4775-uart",
 EARLYCON_DECLARE(jz4780_uart, ingenic_early_console_setup);
 OF_EARLYCON_DECLARE(jz4780_uart, "ingenic,jz4780-uart",
 		    ingenic_early_console_setup);
+#endif /* CONFIG_SERIAL_EARLYCON */
 
 static void ingenic_uart_serial_out(struct uart_port *p, int offset, int value)
 {
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index 78883ca64ddd..0e590b233f03 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -16,7 +16,7 @@
  */
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
@@ -245,23 +245,6 @@ static int mtk8250_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int mtk8250_remove(struct platform_device *pdev)
-{
-	struct mtk8250_data *data = platform_get_drvdata(pdev);
-
-	pm_runtime_get_sync(&pdev->dev);
-
-	serial8250_unregister_port(data->line);
-
-	pm_runtime_disable(&pdev->dev);
-	pm_runtime_put_noidle(&pdev->dev);
-
-	if (!pm_runtime_status_suspended(&pdev->dev))
-		mtk8250_runtime_suspend(&pdev->dev);
-
-	return 0;
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int mtk8250_suspend(struct device *dev)
 {
@@ -292,18 +275,18 @@ static const struct of_device_id mtk8250_of_match[] = {
 	{ .compatible = "mediatek,mt6577-uart" },
 	{ /* Sentinel */ }
 };
-MODULE_DEVICE_TABLE(of, mtk8250_of_match);
 
 static struct platform_driver mtk8250_platform_driver = {
 	.driver = {
-		.name		= "mt6577-uart",
-		.pm		= &mtk8250_pm_ops,
-		.of_match_table	= mtk8250_of_match,
+		.name			= "mt6577-uart",
+		.pm			= &mtk8250_pm_ops,
+		.of_match_table		= mtk8250_of_match,
+		.suppress_bind_attrs	= true,
+
 	},
 	.probe			= mtk8250_probe,
-	.remove			= mtk8250_remove,
 };
-module_platform_driver(mtk8250_platform_driver);
+builtin_platform_driver(mtk8250_platform_driver);
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 static int __init early_mtk8250_setup(struct earlycon_device *device,
@@ -319,7 +302,3 @@ static int __init early_mtk8250_setup(struct earlycon_device *device,
 
 OF_EARLYCON_DECLARE(mtk8250, "mediatek,mt6577-uart", early_mtk8250_setup);
 #endif
-
-MODULE_AUTHOR("Matthias Brugger");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Mediatek 8250 serial port driver");
diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/8250/8250_of.c
index de5029649795..33021c1f7d55 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -18,14 +18,9 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
-#include <linux/nwpserial.h>
 #include <linux/clk.h>
 
-#ifdef CONFIG_SERIAL_8250_MODULE
-#define CONFIG_SERIAL_8250 CONFIG_SERIAL_8250_MODULE
-#endif
-
-#include "8250/8250.h"
+#include "8250.h"
 
 struct of_serial_info {
 	struct clk *clk;
@@ -122,6 +117,9 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 		case 1:
 			port->iotype = UPIO_MEM;
 			break;
+		case 2:
+			port->iotype = UPIO_MEM16;
+			break;
 		case 4:
 			port->iotype = of_device_is_big_endian(np) ?
 				       UPIO_MEM32BE : UPIO_MEM32;
@@ -195,7 +193,6 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
 		goto out;
 
 	switch (port_type) {
-#ifdef CONFIG_SERIAL_8250
 	case PORT_8250 ... PORT_MAX_8250:
 	{
 		struct uart_8250_port port8250;
@@ -212,12 +209,6 @@ static int of_platform_serial_probe(struct platform_device *ofdev)
 		ret = serial8250_register_8250_port(&port8250);
 		break;
 	}
-#endif
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	case PORT_NWPSERIAL:
-		ret = nwpserial_register_port(&port);
-		break;
-#endif
 	default:
 		/* need to add code for these */
 	case PORT_UNKNOWN:
@@ -245,16 +236,9 @@ static int of_platform_serial_remove(struct platform_device *ofdev)
 {
 	struct of_serial_info *info = platform_get_drvdata(ofdev);
 	switch (info->type) {
-#ifdef CONFIG_SERIAL_8250
 	case PORT_8250 ... PORT_MAX_8250:
 		serial8250_unregister_port(info->line);
 		break;
-#endif
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	case PORT_NWPSERIAL:
-		nwpserial_unregister_port(info->line);
-		break;
-#endif
 	default:
 		/* need to add code for these */
 		break;
@@ -267,7 +251,6 @@ static int of_platform_serial_remove(struct platform_device *ofdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-#ifdef CONFIG_SERIAL_8250
 static void of_serial_suspend_8250(struct of_serial_info *info)
 {
 	struct uart_8250_port *port8250 = serial8250_get_port(info->line);
@@ -288,15 +271,6 @@ static void of_serial_resume_8250(struct of_serial_info *info)
 
 	serial8250_resume_port(info->line);
 }
-#else
-static inline void of_serial_suspend_8250(struct of_serial_info *info)
-{
-}
-
-static inline void of_serial_resume_8250(struct of_serial_info *info)
-{
-}
-#endif
 
 static int of_serial_suspend(struct device *dev)
 {
@@ -353,10 +327,6 @@ static const struct of_device_id of_platform_serial_table[] = {
 		.data = (void *)PORT_XSCALE, },
 	{ .compatible = "mrvl,pxa-uart",
 		.data = (void *)PORT_XSCALE, },
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
-	{ .compatible = "ibm,qpace-nwp-serial",
-		.data = (void *)PORT_NWPSERIAL, },
-#endif
 	{ /* end of list */ },
 };
 MODULE_DEVICE_TABLE(of, of_platform_serial_table);
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 52d82d2ac726..8d262bce97e4 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -368,6 +368,18 @@ static void mem_serial_out(struct uart_port *p, int offset, int value)
 	writeb(value, p->membase + offset);
 }
 
+static void mem16_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	writew(value, p->membase + offset);
+}
+
+static unsigned int mem16_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	return readw(p->membase + offset);
+}
+
 static void mem32_serial_out(struct uart_port *p, int offset, int value)
 {
 	offset = offset << p->regshift;
@@ -425,6 +437,11 @@ static void set_io_from_upio(struct uart_port *p)
 		p->serial_out = mem_serial_out;
 		break;
 
+	case UPIO_MEM16:
+		p->serial_in = mem16_serial_in;
+		p->serial_out = mem16_serial_out;
+		break;
+
 	case UPIO_MEM32:
 		p->serial_in = mem32_serial_in;
 		p->serial_out = mem32_serial_out;
@@ -459,6 +476,7 @@ serial_port_out_sync(struct uart_port *p, int offset, int value)
 {
 	switch (p->iotype) {
 	case UPIO_MEM:
+	case UPIO_MEM16:
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
 	case UPIO_AU:
@@ -2462,6 +2480,7 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
 	case UPIO_TSI:
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
+	case UPIO_MEM16:
 	case UPIO_MEM:
 		if (!port->mapbase)
 			break;
@@ -2499,6 +2518,7 @@ static void serial8250_release_std_resource(struct uart_8250_port *up)
 	case UPIO_TSI:
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
+	case UPIO_MEM16:
 	case UPIO_MEM:
 		if (!port->mapbase)
 			break;
diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
index 245edbb68d4b..bab6b3ae2540 100644
--- a/drivers/tty/serial/8250/8250_uniphier.c
+++ b/drivers/tty/serial/8250/8250_uniphier.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/console.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -34,6 +35,29 @@ struct uniphier8250_priv {
 	spinlock_t atomic_write_lock;
 };
 
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+static int __init uniphier_early_console_setup(struct earlycon_device *device,
+					       const char *options)
+{
+	if (!device->port.membase)
+		return -ENODEV;
+
+	/* This hardware always expects MMIO32 register interface. */
+	device->port.iotype = UPIO_MEM32;
+	device->port.regshift = 2;
+
+	/*
+	 * Do not touch the divisor register in early_serial8250_setup();
+	 * we assume it has been initialized by a boot loader.
+	 */
+	device->baud = 0;
+
+	return early_serial8250_setup(device, options);
+}
+OF_EARLYCON_DECLARE(uniphier, "socionext,uniphier-uart",
+		    uniphier_early_console_setup);
+#endif
+
 /*
  * The register map is slightly different from that of 8250.
  * IO callbacks must be overridden for correct access to FCR, LCR, and MCR.
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index 6412f1455beb..b03cb5175113 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -361,9 +361,8 @@ config SERIAL_8250_UNIPHIER
 
 config SERIAL_8250_INGENIC
 	bool "Support for Ingenic SoC serial ports"
-	depends on SERIAL_8250_CONSOLE && OF_FLATTREE
+	depends on OF_FLATTREE
 	select LIBFDT
-	select SERIAL_EARLYCON
 	help
 	  If you have a system using an Ingenic SoC and wish to make use of
 	  its UARTs, say Y to this option. If unsure, say N.
@@ -372,9 +371,18 @@ config SERIAL_8250_MID
 	tristate "Support for serial ports on Intel MID platforms"
 	depends on SERIAL_8250 && PCI
 	select HSU_DMA if SERIAL_8250_DMA
-	select HSU_DMA_PCI if X86_INTEL_MID
+	select HSU_DMA_PCI if (HSU_DMA && X86_INTEL_MID)
 	select RATIONAL
 	help
 	  Selecting this option will enable handling of the extra features
 	  present on the UART found on Intel Medfield SOC and various other
 	  Intel platforms.
+
+config SERIAL_OF_PLATFORM
+	tristate "Devicetree based probing for 8250 ports"
+	depends on SERIAL_8250 && OF
+	help
+	  This option is used for all 8250 compatible serial ports that
+	  are probed through devicetree, including Open Firmware based
+	  PowerPC systems and embedded systems on architectures using the
+	  flattened device tree format.
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index e177f8681ada..b9b9bca5b6c3 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -28,5 +28,6 @@ obj-$(CONFIG_SERIAL_8250_MT6577)	+= 8250_mtk.o
 obj-$(CONFIG_SERIAL_8250_UNIPHIER)	+= 8250_uniphier.o
 obj-$(CONFIG_SERIAL_8250_INGENIC)	+= 8250_ingenic.o
 obj-$(CONFIG_SERIAL_8250_MID)		+= 8250_mid.o
+obj-$(CONFIG_SERIAL_OF_PLATFORM)	+= 8250_of.o
 
 CFLAGS_8250_ingenic.o += -I$(srctree)/scripts/dtc/libfdt
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index f38beb28e7ae..d27a0c62a75f 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -115,6 +115,7 @@ config SERIAL_SB1250_DUART_CONSOLE
 
 config SERIAL_ATMEL
 	bool "AT91 / AT32 on-chip serial port support"
+	depends on HAS_DMA
 	depends on ARCH_AT91 || AVR32 || COMPILE_TEST
 	select SERIAL_CORE
 	select SERIAL_MCTRL_GPIO if GPIOLIB
@@ -571,9 +572,11 @@ config BFIN_UART3_CTSRTS
 
 config SERIAL_IMX
 	tristate "IMX serial port support"
+	depends on HAS_DMA
 	depends on ARCH_MXC || COMPILE_TEST
 	select SERIAL_CORE
 	select RATIONAL
+	select SERIAL_MCTRL_GPIO if GPIOLIB
 	help
 	  If you have a machine based on a Motorola IMX CPU you
 	  can enable its onboard serial port by enabling this option.
@@ -1094,16 +1097,6 @@ config SERIAL_NETX_CONSOLE
 	  If you have enabled the serial port on the Hilscher NetX SoC
 	  you can make it the console by answering Y to this option.
 
-config SERIAL_OF_PLATFORM
-	tristate "Serial port on Open Firmware platform bus"
-	depends on OF
-	depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
-	help
-	  If you have a PowerPC based system that has serial ports
-	  on a platform specific bus, you should enable this option.
-	  Currently, only 8250 compatible ports are supported, but
-	  others can easily be added.
-
 config SERIAL_OMAP
 	tristate "OMAP serial port support"
 	depends on ARCH_OMAP2PLUS
@@ -1131,23 +1124,6 @@ config SERIAL_OMAP_CONSOLE
 	  your boot loader about how to pass options to the kernel at
 	  boot time.)
 
-config SERIAL_OF_PLATFORM_NWPSERIAL
-	tristate "NWP serial port driver"
-	depends on PPC_DCR
-	select SERIAL_OF_PLATFORM
-	select SERIAL_CORE_CONSOLE
-	select SERIAL_CORE
-	help
-	  This driver supports the cell network processor nwp serial
-	  device.
-
-config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
-	bool "Console on NWP serial port"
-	depends on SERIAL_OF_PLATFORM_NWPSERIAL=y
-	select SERIAL_CORE_CONSOLE
-	help
-	  Support for Console on the NWP serial ports.
-
 config SERIAL_LANTIQ
 	bool "Lantiq serial driver"
 	depends on LANTIQ
@@ -1409,8 +1385,9 @@ config SERIAL_PCH_UART_CONSOLE
 	  warnings and which allows logins in single user mode).
 
 config SERIAL_MXS_AUART
-	depends on ARCH_MXS || COMPILE_TEST
 	tristate "MXS AUART support"
+	depends on HAS_DMA
+	depends on ARCH_MXS || COMPILE_TEST
 	select SERIAL_CORE
 	select SERIAL_MCTRL_GPIO if GPIOLIB
 	help
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 5ab41119b3dc..b391c9b31960 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -63,8 +63,6 @@ obj-$(CONFIG_SERIAL_ATMEL) += atmel_serial.o
 obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
 obj-$(CONFIG_SERIAL_MSM) += msm_serial.o
 obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
-obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
-obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o
 obj-$(CONFIG_SERIAL_KGDB_NMI) += kgdb_nmi.o
 obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
 obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 899a77187bde..c0da0ccbbcf5 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -60,6 +60,8 @@
 #include <linux/io.h>
 #include <linux/acpi.h>
 
+#include "amba-pl011.h"
+
 #define UART_NR			14
 
 #define SERIAL_AMBA_MAJOR	204
@@ -71,11 +73,27 @@
 #define UART_DR_ERROR		(UART011_DR_OE|UART011_DR_BE|UART011_DR_PE|UART011_DR_FE)
 #define UART_DUMMY_DR_RX	(1 << 16)
 
+static u16 pl011_std_offsets[REG_ARRAY_SIZE] = {
+	[REG_DR] = UART01x_DR,
+	[REG_FR] = UART01x_FR,
+	[REG_LCRH_RX] = UART011_LCRH,
+	[REG_LCRH_TX] = UART011_LCRH,
+	[REG_IBRD] = UART011_IBRD,
+	[REG_FBRD] = UART011_FBRD,
+	[REG_CR] = UART011_CR,
+	[REG_IFLS] = UART011_IFLS,
+	[REG_IMSC] = UART011_IMSC,
+	[REG_RIS] = UART011_RIS,
+	[REG_MIS] = UART011_MIS,
+	[REG_ICR] = UART011_ICR,
+	[REG_DMACR] = UART011_DMACR,
+};
+
 /* There is by now at least one vendor with differing details, so handle it */
 struct vendor_data {
+	const u16		*reg_offset;
 	unsigned int		ifls;
-	unsigned int		lcrh_tx;
-	unsigned int		lcrh_rx;
+	bool			access_32b;
 	bool			oversampling;
 	bool			dma_threshold;
 	bool			cts_event_workaround;
@@ -91,9 +109,8 @@ static unsigned int get_fifosize_arm(struct amba_device *dev)
 }
 
 static struct vendor_data vendor_arm = {
+	.reg_offset		= pl011_std_offsets,
 	.ifls			= UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
-	.lcrh_tx		= UART011_LCRH,
-	.lcrh_rx		= UART011_LCRH,
 	.oversampling		= false,
 	.dma_threshold		= false,
 	.cts_event_workaround	= false,
@@ -103,6 +120,7 @@ static struct vendor_data vendor_arm = {
 };
 
 static struct vendor_data vendor_sbsa = {
+	.reg_offset		= pl011_std_offsets,
 	.oversampling		= false,
 	.dma_threshold		= false,
 	.cts_event_workaround	= false,
@@ -110,15 +128,41 @@ static struct vendor_data vendor_sbsa = {
 	.fixed_options		= true,
 };
 
+static u16 pl011_st_offsets[REG_ARRAY_SIZE] = {
+	[REG_DR] = UART01x_DR,
+	[REG_ST_DMAWM] = ST_UART011_DMAWM,
+	[REG_ST_TIMEOUT] = ST_UART011_TIMEOUT,
+	[REG_FR] = UART01x_FR,
+	[REG_LCRH_RX] = ST_UART011_LCRH_RX,
+	[REG_LCRH_TX] = ST_UART011_LCRH_TX,
+	[REG_IBRD] = UART011_IBRD,
+	[REG_FBRD] = UART011_FBRD,
+	[REG_CR] = UART011_CR,
+	[REG_IFLS] = UART011_IFLS,
+	[REG_IMSC] = UART011_IMSC,
+	[REG_RIS] = UART011_RIS,
+	[REG_MIS] = UART011_MIS,
+	[REG_ICR] = UART011_ICR,
+	[REG_DMACR] = UART011_DMACR,
+	[REG_ST_XFCR] = ST_UART011_XFCR,
+	[REG_ST_XON1] = ST_UART011_XON1,
+	[REG_ST_XON2] = ST_UART011_XON2,
+	[REG_ST_XOFF1] = ST_UART011_XOFF1,
+	[REG_ST_XOFF2] = ST_UART011_XOFF2,
+	[REG_ST_ITCR] = ST_UART011_ITCR,
+	[REG_ST_ITIP] = ST_UART011_ITIP,
+	[REG_ST_ABCR] = ST_UART011_ABCR,
+	[REG_ST_ABIMSC] = ST_UART011_ABIMSC,
+};
+
 static unsigned int get_fifosize_st(struct amba_device *dev)
 {
 	return 64;
 }
 
 static struct vendor_data vendor_st = {
+	.reg_offset		= pl011_st_offsets,
 	.ifls			= UART011_IFLS_RX_HALF|UART011_IFLS_TX_HALF,
-	.lcrh_tx		= ST_UART011_LCRH_TX,
-	.lcrh_rx		= ST_UART011_LCRH_RX,
 	.oversampling		= true,
 	.dma_threshold		= true,
 	.cts_event_workaround	= true,
@@ -127,6 +171,29 @@ static struct vendor_data vendor_st = {
 	.get_fifosize		= get_fifosize_st,
 };
 
+static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = {
+	[REG_DR] = ZX_UART011_DR,
+	[REG_FR] = ZX_UART011_FR,
+	[REG_LCRH_RX] = ZX_UART011_LCRH,
+	[REG_LCRH_TX] = ZX_UART011_LCRH,
+	[REG_IBRD] = ZX_UART011_IBRD,
+	[REG_FBRD] = ZX_UART011_FBRD,
+	[REG_CR] = ZX_UART011_CR,
+	[REG_IFLS] = ZX_UART011_IFLS,
+	[REG_IMSC] = ZX_UART011_IMSC,
+	[REG_RIS] = ZX_UART011_RIS,
+	[REG_MIS] = ZX_UART011_MIS,
+	[REG_ICR] = ZX_UART011_ICR,
+	[REG_DMACR] = ZX_UART011_DMACR,
+};
+
+static struct vendor_data vendor_zte = {
+	.reg_offset		= pl011_zte_offsets,
+	.access_32b		= true,
+	.ifls			= UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
+	.get_fifosize		= get_fifosize_arm,
+};
+
 /* Deals with DMA transactions */
 
 struct pl011_sgbuf {
@@ -162,14 +229,13 @@ struct pl011_dmatx_data {
  */
 struct uart_amba_port {
 	struct uart_port	port;
+	const u16		*reg_offset;
 	struct clk		*clk;
 	const struct vendor_data *vendor;
 	unsigned int		dmacr;		/* dma control reg */
 	unsigned int		im;		/* interrupt mask */
 	unsigned int		old_status;
 	unsigned int		fifosize;	/* vendor-specific */
-	unsigned int		lcrh_tx;	/* vendor-specific */
-	unsigned int		lcrh_rx;	/* vendor-specific */
 	unsigned int		old_cr;		/* state during shutdown */
 	bool			autorts;
 	unsigned int		fixed_baud;	/* vendor-set fixed baud rate */
@@ -184,6 +250,32 @@ struct uart_amba_port {
 #endif
 };
 
+static unsigned int pl011_reg_to_offset(const struct uart_amba_port *uap,
+	unsigned int reg)
+{
+	return uap->reg_offset[reg];
+}
+
+static unsigned int pl011_read(const struct uart_amba_port *uap,
+	unsigned int reg)
+{
+	void __iomem *addr = uap->port.membase + pl011_reg_to_offset(uap, reg);
+
+	return (uap->port.iotype == UPIO_MEM32) ?
+		readl_relaxed(addr) : readw_relaxed(addr);
+}
+
+static void pl011_write(unsigned int val, const struct uart_amba_port *uap,
+	unsigned int reg)
+{
+	void __iomem *addr = uap->port.membase + pl011_reg_to_offset(uap, reg);
+
+	if (uap->port.iotype == UPIO_MEM32)
+		writel_relaxed(val, addr);
+	else
+		writew_relaxed(val, addr);
+}
+
 /*
  * Reads up to 256 characters from the FIFO or until it's empty and
  * inserts them into the TTY layer. Returns the number of characters
@@ -196,13 +288,12 @@ static int pl011_fifo_to_tty(struct uart_amba_port *uap)
 	int fifotaken = 0;
 
 	while (max_count--) {
-		status = readw(uap->port.membase + UART01x_FR);
+		status = pl011_read(uap, REG_FR);
 		if (status & UART01x_FR_RXFE)
 			break;
 
 		/* Take chars from the FIFO and update status */
-		ch = readw(uap->port.membase + UART01x_DR) |
-			UART_DUMMY_DR_RX;
+		ch = pl011_read(uap, REG_DR) | UART_DUMMY_DR_RX;
 		flag = TTY_NORMAL;
 		uap->port.icount.rx++;
 		fifotaken++;
@@ -284,7 +375,8 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
 	struct amba_pl011_data *plat = dev_get_platdata(uap->port.dev);
 	struct device *dev = uap->port.dev;
 	struct dma_slave_config tx_conf = {
-		.dst_addr = uap->port.mapbase + UART01x_DR,
+		.dst_addr = uap->port.mapbase +
+				 pl011_reg_to_offset(uap, REG_DR),
 		.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
 		.direction = DMA_MEM_TO_DEV,
 		.dst_maxburst = uap->fifosize >> 1,
@@ -339,7 +431,8 @@ static void pl011_dma_probe(struct uart_amba_port *uap)
 
 	if (chan) {
 		struct dma_slave_config rx_conf = {
-			.src_addr = uap->port.mapbase + UART01x_DR,
+			.src_addr = uap->port.mapbase +
+				pl011_reg_to_offset(uap, REG_DR),
 			.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
 			.direction = DMA_DEV_TO_MEM,
 			.src_maxburst = uap->fifosize >> 2,
@@ -438,7 +531,7 @@ static void pl011_dma_tx_callback(void *data)
 
 	dmacr = uap->dmacr;
 	uap->dmacr = dmacr & ~UART011_TXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 
 	/*
 	 * If TX DMA was disabled, it means that we've stopped the DMA for
@@ -552,7 +645,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
 	dma_dev->device_issue_pending(chan);
 
 	uap->dmacr |= UART011_TXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 	uap->dmatx.queued = true;
 
 	/*
@@ -588,9 +681,9 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
 	 */
 	if (uap->dmatx.queued) {
 		uap->dmacr |= UART011_TXDMAE;
-		writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+		pl011_write(uap->dmacr, uap, REG_DMACR);
 		uap->im &= ~UART011_TXIM;
-		writew(uap->im, uap->port.membase + UART011_IMSC);
+		pl011_write(uap->im, uap, REG_IMSC);
 		return true;
 	}
 
@@ -600,7 +693,7 @@ static bool pl011_dma_tx_irq(struct uart_amba_port *uap)
 	 */
 	if (pl011_dma_tx_refill(uap) > 0) {
 		uap->im &= ~UART011_TXIM;
-		writew(uap->im, uap->port.membase + UART011_IMSC);
+		pl011_write(uap->im, uap, REG_IMSC);
 		return true;
 	}
 	return false;
@@ -614,7 +707,7 @@ static inline void pl011_dma_tx_stop(struct uart_amba_port *uap)
 {
 	if (uap->dmatx.queued) {
 		uap->dmacr &= ~UART011_TXDMAE;
-		writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+		pl011_write(uap->dmacr, uap, REG_DMACR);
 	}
 }
 
@@ -640,14 +733,12 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
 		if (!uap->dmatx.queued) {
 			if (pl011_dma_tx_refill(uap) > 0) {
 				uap->im &= ~UART011_TXIM;
-				writew(uap->im, uap->port.membase +
-				       UART011_IMSC);
+				pl011_write(uap->im, uap, REG_IMSC);
 			} else
 				ret = false;
 		} else if (!(uap->dmacr & UART011_TXDMAE)) {
 			uap->dmacr |= UART011_TXDMAE;
-			writew(uap->dmacr,
-				       uap->port.membase + UART011_DMACR);
+			pl011_write(uap->dmacr, uap, REG_DMACR);
 		}
 		return ret;
 	}
@@ -658,9 +749,9 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
 	 */
 	dmacr = uap->dmacr;
 	uap->dmacr &= ~UART011_TXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 
-	if (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF) {
+	if (pl011_read(uap, REG_FR) & UART01x_FR_TXFF) {
 		/*
 		 * No space in the FIFO, so enable the transmit interrupt
 		 * so we know when there is space.  Note that once we've
@@ -669,13 +760,13 @@ static inline bool pl011_dma_tx_start(struct uart_amba_port *uap)
 		return false;
 	}
 
-	writew(uap->port.x_char, uap->port.membase + UART01x_DR);
+	pl011_write(uap->port.x_char, uap, REG_DR);
 	uap->port.icount.tx++;
 	uap->port.x_char = 0;
 
 	/* Success - restore the DMA state */
 	uap->dmacr = dmacr;
-	writew(dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(dmacr, uap, REG_DMACR);
 
 	return true;
 }
@@ -703,7 +794,7 @@ __acquires(&uap->port.lock)
 			     DMA_TO_DEVICE);
 		uap->dmatx.queued = false;
 		uap->dmacr &= ~UART011_TXDMAE;
-		writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+		pl011_write(uap->dmacr, uap, REG_DMACR);
 	}
 }
 
@@ -743,11 +834,11 @@ static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
 	dma_async_issue_pending(rxchan);
 
 	uap->dmacr |= UART011_RXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 	uap->dmarx.running = true;
 
 	uap->im &= ~UART011_RXIM;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 
 	return 0;
 }
@@ -805,8 +896,8 @@ static void pl011_dma_rx_chars(struct uart_amba_port *uap,
 	 */
 	if (dma_count == pending && readfifo) {
 		/* Clear any error flags */
-		writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS,
-		       uap->port.membase + UART011_ICR);
+		pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
+			    UART011_FEIS, uap, REG_ICR);
 
 		/*
 		 * If we read all the DMA'd characters, and we had an
@@ -854,7 +945,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
 
 	/* Disable RX DMA - incoming data will wait in the FIFO */
 	uap->dmacr &= ~UART011_RXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 	uap->dmarx.running = false;
 
 	pending = sgbuf->sg.length - state.residue;
@@ -874,7 +965,7 @@ static void pl011_dma_rx_irq(struct uart_amba_port *uap)
 		dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
 			"fall back to interrupt mode\n");
 		uap->im |= UART011_RXIM;
-		writew(uap->im, uap->port.membase + UART011_IMSC);
+		pl011_write(uap->im, uap, REG_IMSC);
 	}
 }
 
@@ -922,7 +1013,7 @@ static void pl011_dma_rx_callback(void *data)
 		dev_dbg(uap->port.dev, "could not retrigger RX DMA job "
 			"fall back to interrupt mode\n");
 		uap->im |= UART011_RXIM;
-		writew(uap->im, uap->port.membase + UART011_IMSC);
+		pl011_write(uap->im, uap, REG_IMSC);
 	}
 }
 
@@ -935,7 +1026,7 @@ static inline void pl011_dma_rx_stop(struct uart_amba_port *uap)
 {
 	/* FIXME.  Just disable the DMA enable */
 	uap->dmacr &= ~UART011_RXDMAE;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 }
 
 /*
@@ -979,7 +1070,7 @@ static void pl011_dma_rx_poll(unsigned long args)
 		spin_lock_irqsave(&uap->port.lock, flags);
 		pl011_dma_rx_stop(uap);
 		uap->im |= UART011_RXIM;
-		writew(uap->im, uap->port.membase + UART011_IMSC);
+		pl011_write(uap->im, uap, REG_IMSC);
 		spin_unlock_irqrestore(&uap->port.lock, flags);
 
 		uap->dmarx.running = false;
@@ -1041,7 +1132,7 @@ static void pl011_dma_startup(struct uart_amba_port *uap)
 skip_rx:
 	/* Turn on DMA error (RX/TX will be enabled on demand) */
 	uap->dmacr |= UART011_DMAONERR;
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 
 	/*
 	 * ST Micro variants has some specific dma burst threshold
@@ -1049,8 +1140,8 @@ skip_rx:
 	 * be issued above/below 16 bytes.
 	 */
 	if (uap->vendor->dma_threshold)
-		writew(ST_UART011_DMAWM_RX_16 | ST_UART011_DMAWM_TX_16,
-			       uap->port.membase + ST_UART011_DMAWM);
+		pl011_write(ST_UART011_DMAWM_RX_16 | ST_UART011_DMAWM_TX_16,
+			    uap, REG_ST_DMAWM);
 
 	if (uap->using_rx_dma) {
 		if (pl011_dma_rx_trigger_dma(uap))
@@ -1075,12 +1166,12 @@ static void pl011_dma_shutdown(struct uart_amba_port *uap)
 		return;
 
 	/* Disable RX and TX DMA */
-	while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_BUSY)
+	while (pl011_read(uap, REG_FR) & UART01x_FR_BUSY)
 		barrier();
 
 	spin_lock_irq(&uap->port.lock);
 	uap->dmacr &= ~(UART011_DMAONERR | UART011_RXDMAE | UART011_TXDMAE);
-	writew(uap->dmacr, uap->port.membase + UART011_DMACR);
+	pl011_write(uap->dmacr, uap, REG_DMACR);
 	spin_unlock_irq(&uap->port.lock);
 
 	if (uap->using_tx_dma) {
@@ -1181,7 +1272,7 @@ static void pl011_stop_tx(struct uart_port *port)
 	    container_of(port, struct uart_amba_port, port);
 
 	uap->im &= ~UART011_TXIM;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 	pl011_dma_tx_stop(uap);
 }
 
@@ -1191,7 +1282,7 @@ static void pl011_tx_chars(struct uart_amba_port *uap, bool from_irq);
 static void pl011_start_tx_pio(struct uart_amba_port *uap)
 {
 	uap->im |= UART011_TXIM;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 	pl011_tx_chars(uap, false);
 }
 
@@ -1211,7 +1302,7 @@ static void pl011_stop_rx(struct uart_port *port)
 
 	uap->im &= ~(UART011_RXIM|UART011_RTIM|UART011_FEIM|
 		     UART011_PEIM|UART011_BEIM|UART011_OEIM);
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 
 	pl011_dma_rx_stop(uap);
 }
@@ -1222,7 +1313,7 @@ static void pl011_enable_ms(struct uart_port *port)
 	    container_of(port, struct uart_amba_port, port);
 
 	uap->im |= UART011_RIMIM|UART011_CTSMIM|UART011_DCDMIM|UART011_DSRMIM;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 }
 
 static void pl011_rx_chars(struct uart_amba_port *uap)
@@ -1242,7 +1333,7 @@ __acquires(&uap->port.lock)
 			dev_dbg(uap->port.dev, "could not trigger RX DMA job "
 				"fall back to interrupt mode again\n");
 			uap->im |= UART011_RXIM;
-			writew(uap->im, uap->port.membase + UART011_IMSC);
+			pl011_write(uap->im, uap, REG_IMSC);
 		} else {
 #ifdef CONFIG_DMA_ENGINE
 			/* Start Rx DMA poll */
@@ -1263,10 +1354,10 @@ static bool pl011_tx_char(struct uart_amba_port *uap, unsigned char c,
 			  bool from_irq)
 {
 	if (unlikely(!from_irq) &&
-	    readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
+	    pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
 		return false; /* unable to transmit character */
 
-	writew(c, uap->port.membase + UART01x_DR);
+	pl011_write(c, uap, REG_DR);
 	uap->port.icount.tx++;
 
 	return true;
@@ -1313,7 +1404,7 @@ static void pl011_modem_status(struct uart_amba_port *uap)
 {
 	unsigned int status, delta;
 
-	status = readw(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
+	status = pl011_read(uap, REG_FR) & UART01x_FR_MODEM_ANY;
 
 	delta = status ^ uap->old_status;
 	uap->old_status = status;
@@ -1341,15 +1432,15 @@ static void check_apply_cts_event_workaround(struct uart_amba_port *uap)
 		return;
 
 	/* workaround to make sure that all bits are unlocked.. */
-	writew(0x00, uap->port.membase + UART011_ICR);
+	pl011_write(0x00, uap, REG_ICR);
 
 	/*
 	 * WA: introduce 26ns(1 uart clk) delay before W1C;
 	 * single apb access will incur 2 pclk(133.12Mhz) delay,
 	 * so add 2 dummy reads
 	 */
-	dummy_read = readw(uap->port.membase + UART011_ICR);
-	dummy_read = readw(uap->port.membase + UART011_ICR);
+	dummy_read = pl011_read(uap, REG_ICR);
+	dummy_read = pl011_read(uap, REG_ICR);
 }
 
 static irqreturn_t pl011_int(int irq, void *dev_id)
@@ -1361,15 +1452,15 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
 	int handled = 0;
 
 	spin_lock_irqsave(&uap->port.lock, flags);
-	imsc = readw(uap->port.membase + UART011_IMSC);
-	status = readw(uap->port.membase + UART011_RIS) & imsc;
+	imsc = pl011_read(uap, REG_IMSC);
+	status = pl011_read(uap, REG_RIS) & imsc;
 	if (status) {
 		do {
 			check_apply_cts_event_workaround(uap);
 
-			writew(status & ~(UART011_TXIS|UART011_RTIS|
-					  UART011_RXIS),
-			       uap->port.membase + UART011_ICR);
+			pl011_write(status & ~(UART011_TXIS|UART011_RTIS|
+					       UART011_RXIS),
+				    uap, REG_ICR);
 
 			if (status & (UART011_RTIS|UART011_RXIS)) {
 				if (pl011_dma_rx_running(uap))
@@ -1386,7 +1477,7 @@ static irqreturn_t pl011_int(int irq, void *dev_id)
 			if (pass_counter-- == 0)
 				break;
 
-			status = readw(uap->port.membase + UART011_RIS) & imsc;
+			status = pl011_read(uap, REG_RIS) & imsc;
 		} while (status != 0);
 		handled = 1;
 	}
@@ -1400,7 +1491,7 @@ static unsigned int pl011_tx_empty(struct uart_port *port)
 {
 	struct uart_amba_port *uap =
 	    container_of(port, struct uart_amba_port, port);
-	unsigned int status = readw(uap->port.membase + UART01x_FR);
+	unsigned int status = pl011_read(uap, REG_FR);
 	return status & (UART01x_FR_BUSY|UART01x_FR_TXFF) ? 0 : TIOCSER_TEMT;
 }
 
@@ -1409,7 +1500,7 @@ static unsigned int pl011_get_mctrl(struct uart_port *port)
 	struct uart_amba_port *uap =
 	    container_of(port, struct uart_amba_port, port);
 	unsigned int result = 0;
-	unsigned int status = readw(uap->port.membase + UART01x_FR);
+	unsigned int status = pl011_read(uap, REG_FR);
 
 #define TIOCMBIT(uartbit, tiocmbit)	\
 	if (status & uartbit)		\
@@ -1429,7 +1520,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	    container_of(port, struct uart_amba_port, port);
 	unsigned int cr;
 
-	cr = readw(uap->port.membase + UART011_CR);
+	cr = pl011_read(uap, REG_CR);
 
 #define	TIOCMBIT(tiocmbit, uartbit)		\
 	if (mctrl & tiocmbit)		\
@@ -1449,7 +1540,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	}
 #undef TIOCMBIT
 
-	writew(cr, uap->port.membase + UART011_CR);
+	pl011_write(cr, uap, REG_CR);
 }
 
 static void pl011_break_ctl(struct uart_port *port, int break_state)
@@ -1460,12 +1551,12 @@ static void pl011_break_ctl(struct uart_port *port, int break_state)
 	unsigned int lcr_h;
 
 	spin_lock_irqsave(&uap->port.lock, flags);
-	lcr_h = readw(uap->port.membase + uap->lcrh_tx);
+	lcr_h = pl011_read(uap, REG_LCRH_TX);
 	if (break_state == -1)
 		lcr_h |= UART01x_LCRH_BRK;
 	else
 		lcr_h &= ~UART01x_LCRH_BRK;
-	writew(lcr_h, uap->port.membase + uap->lcrh_tx);
+	pl011_write(lcr_h, uap, REG_LCRH_TX);
 	spin_unlock_irqrestore(&uap->port.lock, flags);
 }
 
@@ -1475,9 +1566,8 @@ static void pl011_quiesce_irqs(struct uart_port *port)
 {
 	struct uart_amba_port *uap =
 	    container_of(port, struct uart_amba_port, port);
-	unsigned char __iomem *regs = uap->port.membase;
 
-	writew(readw(regs + UART011_MIS), regs + UART011_ICR);
+	pl011_write(pl011_read(uap, REG_MIS), uap, REG_ICR);
 	/*
 	 * There is no way to clear TXIM as this is "ready to transmit IRQ", so
 	 * we simply mask it. start_tx() will unmask it.
@@ -1491,7 +1581,8 @@ static void pl011_quiesce_irqs(struct uart_port *port)
 	 * (including tx queue), so we're also fine with start_tx()'s caller
 	 * side.
 	 */
-	writew(readw(regs + UART011_IMSC) & ~UART011_TXIM, regs + UART011_IMSC);
+	pl011_write(pl011_read(uap, REG_IMSC) & ~UART011_TXIM, uap,
+		    REG_IMSC);
 }
 
 static int pl011_get_poll_char(struct uart_port *port)
@@ -1506,11 +1597,11 @@ static int pl011_get_poll_char(struct uart_port *port)
 	 */
 	pl011_quiesce_irqs(port);
 
-	status = readw(uap->port.membase + UART01x_FR);
+	status = pl011_read(uap, REG_FR);
 	if (status & UART01x_FR_RXFE)
 		return NO_POLL_CHAR;
 
-	return readw(uap->port.membase + UART01x_DR);
+	return pl011_read(uap, REG_DR);
 }
 
 static void pl011_put_poll_char(struct uart_port *port,
@@ -1519,10 +1610,10 @@ static void pl011_put_poll_char(struct uart_port *port,
 	struct uart_amba_port *uap =
 	    container_of(port, struct uart_amba_port, port);
 
-	while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
+	while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
 		barrier();
 
-	writew(ch, uap->port.membase + UART01x_DR);
+	pl011_write(ch, uap, REG_DR);
 }
 
 #endif /* CONFIG_CONSOLE_POLL */
@@ -1546,15 +1637,16 @@ static int pl011_hwinit(struct uart_port *port)
 	uap->port.uartclk = clk_get_rate(uap->clk);
 
 	/* Clear pending error and receive interrupts */
-	writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
-	       UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
+	pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
+		    UART011_FEIS | UART011_RTIS | UART011_RXIS,
+		    uap, REG_ICR);
 
 	/*
 	 * Save interrupts enable mask, and enable RX interrupts in case if
 	 * the interrupt is used for NMI entry.
 	 */
-	uap->im = readw(uap->port.membase + UART011_IMSC);
-	writew(UART011_RTIM | UART011_RXIM, uap->port.membase + UART011_IMSC);
+	uap->im = pl011_read(uap, REG_IMSC);
+	pl011_write(UART011_RTIM | UART011_RXIM, uap, REG_IMSC);
 
 	if (dev_get_platdata(uap->port.dev)) {
 		struct amba_pl011_data *plat;
@@ -1566,24 +1658,30 @@ static int pl011_hwinit(struct uart_port *port)
 	return 0;
 }
 
+static bool pl011_split_lcrh(const struct uart_amba_port *uap)
+{
+	return pl011_reg_to_offset(uap, REG_LCRH_RX) !=
+	       pl011_reg_to_offset(uap, REG_LCRH_TX);
+}
+
 static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h)
 {
-	writew(lcr_h, uap->port.membase + uap->lcrh_rx);
-	if (uap->lcrh_rx != uap->lcrh_tx) {
+	pl011_write(lcr_h, uap, REG_LCRH_RX);
+	if (pl011_split_lcrh(uap)) {
 		int i;
 		/*
 		 * Wait 10 PCLKs before writing LCRH_TX register,
 		 * to get this delay write read only register 10 times
 		 */
 		for (i = 0; i < 10; ++i)
-			writew(0xff, uap->port.membase + UART011_MIS);
-		writew(lcr_h, uap->port.membase + uap->lcrh_tx);
+			pl011_write(0xff, uap, REG_MIS);
+		pl011_write(lcr_h, uap, REG_LCRH_TX);
 	}
 }
 
 static int pl011_allocate_irq(struct uart_amba_port *uap)
 {
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 
 	return request_irq(uap->port.irq, pl011_int, 0, "uart-pl011", uap);
 }
@@ -1598,12 +1696,11 @@ static void pl011_enable_interrupts(struct uart_amba_port *uap)
 	spin_lock_irq(&uap->port.lock);
 
 	/* Clear out any spuriously appearing RX interrupts */
-	writew(UART011_RTIS | UART011_RXIS,
-	       uap->port.membase + UART011_ICR);
+	pl011_write(UART011_RTIS | UART011_RXIS, uap, REG_ICR);
 	uap->im = UART011_RTIM;
 	if (!pl011_dma_rx_running(uap))
 		uap->im |= UART011_RXIM;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
+	pl011_write(uap->im, uap, REG_IMSC);
 	spin_unlock_irq(&uap->port.lock);
 }
 
@@ -1622,21 +1719,21 @@ static int pl011_startup(struct uart_port *port)
 	if (retval)
 		goto clk_dis;
 
-	writew(uap->vendor->ifls, uap->port.membase + UART011_IFLS);
+	pl011_write(uap->vendor->ifls, uap, REG_IFLS);
 
 	spin_lock_irq(&uap->port.lock);
 
 	/* restore RTS and DTR */
 	cr = uap->old_cr & (UART011_CR_RTS | UART011_CR_DTR);
 	cr |= UART01x_CR_UARTEN | UART011_CR_RXE | UART011_CR_TXE;
-	writew(cr, uap->port.membase + UART011_CR);
+	pl011_write(cr, uap, REG_CR);
 
 	spin_unlock_irq(&uap->port.lock);
 
 	/*
 	 * initialise the old status of the modem signals
 	 */
-	uap->old_status = readw(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
+	uap->old_status = pl011_read(uap, REG_FR) & UART01x_FR_MODEM_ANY;
 
 	/* Startup DMA */
 	pl011_dma_startup(uap);
@@ -1677,9 +1774,9 @@ static void pl011_shutdown_channel(struct uart_amba_port *uap,
 {
       unsigned long val;
 
-      val = readw(uap->port.membase + lcrh);
+      val = pl011_read(uap, lcrh);
       val &= ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN);
-      writew(val, uap->port.membase + lcrh);
+      pl011_write(val, uap, lcrh);
 }
 
 /*
@@ -1693,19 +1790,19 @@ static void pl011_disable_uart(struct uart_amba_port *uap)
 
 	uap->autorts = false;
 	spin_lock_irq(&uap->port.lock);
-	cr = readw(uap->port.membase + UART011_CR);
+	cr = pl011_read(uap, REG_CR);
 	uap->old_cr = cr;
 	cr &= UART011_CR_RTS | UART011_CR_DTR;
 	cr |= UART01x_CR_UARTEN | UART011_CR_TXE;
-	writew(cr, uap->port.membase + UART011_CR);
+	pl011_write(cr, uap, REG_CR);
 	spin_unlock_irq(&uap->port.lock);
 
 	/*
 	 * disable break condition and fifos
 	 */
-	pl011_shutdown_channel(uap, uap->lcrh_rx);
-	if (uap->lcrh_rx != uap->lcrh_tx)
-		pl011_shutdown_channel(uap, uap->lcrh_tx);
+	pl011_shutdown_channel(uap, REG_LCRH_RX);
+	if (pl011_split_lcrh(uap))
+		pl011_shutdown_channel(uap, REG_LCRH_TX);
 }
 
 static void pl011_disable_interrupts(struct uart_amba_port *uap)
@@ -1714,8 +1811,8 @@ static void pl011_disable_interrupts(struct uart_amba_port *uap)
 
 	/* mask all interrupts and clear all pending ones */
 	uap->im = 0;
-	writew(uap->im, uap->port.membase + UART011_IMSC);
-	writew(0xffff, uap->port.membase + UART011_ICR);
+	pl011_write(uap->im, uap, REG_IMSC);
+	pl011_write(0xffff, uap, REG_ICR);
 
 	spin_unlock_irq(&uap->port.lock);
 }
@@ -1867,8 +1964,8 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
 		pl011_enable_ms(port);
 
 	/* first, disable everything */
-	old_cr = readw(port->membase + UART011_CR);
-	writew(0, port->membase + UART011_CR);
+	old_cr = pl011_read(uap, REG_CR);
+	pl011_write(0, uap, REG_CR);
 
 	if (termios->c_cflag & CRTSCTS) {
 		if (old_cr & UART011_CR_RTS)
@@ -1901,17 +1998,17 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
 			quot -= 2;
 	}
 	/* Set baud rate */
-	writew(quot & 0x3f, port->membase + UART011_FBRD);
-	writew(quot >> 6, port->membase + UART011_IBRD);
+	pl011_write(quot & 0x3f, uap, REG_FBRD);
+	pl011_write(quot >> 6, uap, REG_IBRD);
 
 	/*
 	 * ----------v----------v----------v----------v-----
-	 * NOTE: lcrh_tx and lcrh_rx MUST BE WRITTEN AFTER
-	 * UART011_FBRD & UART011_IBRD.
+	 * NOTE: REG_LCRH_TX and REG_LCRH_RX MUST BE WRITTEN AFTER
+	 * REG_FBRD & REG_IBRD.
 	 * ----------^----------^----------^----------^-----
 	 */
 	pl011_write_lcr_h(uap, lcr_h);
-	writew(old_cr, port->membase + UART011_CR);
+	pl011_write(old_cr, uap, REG_CR);
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -2052,9 +2149,9 @@ static void pl011_console_putchar(struct uart_port *port, int ch)
 	struct uart_amba_port *uap =
 	    container_of(port, struct uart_amba_port, port);
 
-	while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
+	while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
 		barrier();
-	writew(ch, uap->port.membase + UART01x_DR);
+	pl011_write(ch, uap, REG_DR);
 }
 
 static void
@@ -2079,10 +2176,10 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
 	 *	First save the CR then disable the interrupts
 	 */
 	if (!uap->vendor->always_enabled) {
-		old_cr = readw(uap->port.membase + UART011_CR);
+		old_cr = pl011_read(uap, REG_CR);
 		new_cr = old_cr & ~UART011_CR_CTSEN;
 		new_cr |= UART01x_CR_UARTEN | UART011_CR_TXE;
-		writew(new_cr, uap->port.membase + UART011_CR);
+		pl011_write(new_cr, uap, REG_CR);
 	}
 
 	uart_console_write(&uap->port, s, count, pl011_console_putchar);
@@ -2092,10 +2189,10 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
 	 *	and restore the TCR
 	 */
 	do {
-		status = readw(uap->port.membase + UART01x_FR);
+		status = pl011_read(uap, REG_FR);
 	} while (status & UART01x_FR_BUSY);
 	if (!uap->vendor->always_enabled)
-		writew(old_cr, uap->port.membase + UART011_CR);
+		pl011_write(old_cr, uap, REG_CR);
 
 	if (locked)
 		spin_unlock(&uap->port.lock);
@@ -2108,10 +2205,10 @@ static void __init
 pl011_console_get_options(struct uart_amba_port *uap, int *baud,
 			     int *parity, int *bits)
 {
-	if (readw(uap->port.membase + UART011_CR) & UART01x_CR_UARTEN) {
+	if (pl011_read(uap, REG_CR) & UART01x_CR_UARTEN) {
 		unsigned int lcr_h, ibrd, fbrd;
 
-		lcr_h = readw(uap->port.membase + uap->lcrh_tx);
+		lcr_h = pl011_read(uap, REG_LCRH_TX);
 
 		*parity = 'n';
 		if (lcr_h & UART01x_LCRH_PEN) {
@@ -2126,13 +2223,13 @@ pl011_console_get_options(struct uart_amba_port *uap, int *baud,
 		else
 			*bits = 8;
 
-		ibrd = readw(uap->port.membase + UART011_IBRD);
-		fbrd = readw(uap->port.membase + UART011_FBRD);
+		ibrd = pl011_read(uap, REG_IBRD);
+		fbrd = pl011_read(uap, REG_FBRD);
 
 		*baud = uap->port.uartclk * 4 / (64 * ibrd + fbrd);
 
 		if (uap->vendor->oversampling) {
-			if (readw(uap->port.membase + UART011_CR)
+			if (pl011_read(uap, REG_CR)
 				  & ST_UART011_CR_OVSFACT)
 				*baud *= 2;
 		}
@@ -2206,7 +2303,10 @@ static void pl011_putc(struct uart_port *port, int c)
 {
 	while (readl(port->membase + UART01x_FR) & UART01x_FR_TXFF)
 		;
-	writeb(c, port->membase + UART01x_DR);
+	if (port->iotype == UPIO_MEM32)
+		writel(c, port->membase + UART01x_DR);
+	else
+		writeb(c, port->membase + UART01x_DR);
 	while (readl(port->membase + UART01x_FR) & UART01x_FR_BUSY)
 		;
 }
@@ -2319,7 +2419,6 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap,
 	uap->port.dev = dev;
 	uap->port.mapbase = mmiobase->start;
 	uap->port.membase = base;
-	uap->port.iotype = UPIO_MEM;
 	uap->port.fifosize = uap->fifosize;
 	uap->port.flags = UPF_BOOT_AUTOCONF;
 	uap->port.line = index;
@@ -2334,8 +2433,8 @@ static int pl011_register_port(struct uart_amba_port *uap)
 	int ret;
 
 	/* Ensure interrupts from this UART are masked and cleared */
-	writew(0, uap->port.membase + UART011_IMSC);
-	writew(0xffff, uap->port.membase + UART011_ICR);
+	pl011_write(0, uap, REG_IMSC);
+	pl011_write(0xffff, uap, REG_ICR);
 
 	if (!amba_reg.state) {
 		ret = uart_register_driver(&amba_reg);
@@ -2372,10 +2471,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 	if (IS_ERR(uap->clk))
 		return PTR_ERR(uap->clk);
 
+	uap->reg_offset = vendor->reg_offset;
 	uap->vendor = vendor;
-	uap->lcrh_rx = vendor->lcrh_rx;
-	uap->lcrh_tx = vendor->lcrh_tx;
 	uap->fifosize = vendor->get_fifosize(dev);
+	uap->port.iotype = vendor->access_32b ? UPIO_MEM32 : UPIO_MEM;
 	uap->port.irq = dev->irq[0];
 	uap->port.ops = &amba_pl011_pops;
 
@@ -2453,8 +2552,10 @@ static int sbsa_uart_probe(struct platform_device *pdev)
 	if (!uap)
 		return -ENOMEM;
 
+	uap->reg_offset	= vendor_sbsa.reg_offset;
 	uap->vendor	= &vendor_sbsa;
 	uap->fifosize	= 32;
+	uap->port.iotype = vendor_sbsa.access_32b ? UPIO_MEM32 : UPIO_MEM;
 	uap->port.irq	= platform_get_irq(pdev, 0);
 	uap->port.ops	= &sbsa_uart_pops;
 	uap->fixed_baud = baudrate;
diff --git a/drivers/tty/serial/amba-pl011.h b/drivers/tty/serial/amba-pl011.h
new file mode 100644
index 000000000000..411c60e1f9a4
--- /dev/null
+++ b/drivers/tty/serial/amba-pl011.h
@@ -0,0 +1,34 @@
+#ifndef AMBA_PL011_H
+#define AMBA_PL011_H
+
+enum {
+	REG_DR,
+	REG_ST_DMAWM,
+	REG_ST_TIMEOUT,
+	REG_FR,
+	REG_LCRH_RX,
+	REG_LCRH_TX,
+	REG_IBRD,
+	REG_FBRD,
+	REG_CR,
+	REG_IFLS,
+	REG_IMSC,
+	REG_RIS,
+	REG_MIS,
+	REG_ICR,
+	REG_DMACR,
+	REG_ST_XFCR,
+	REG_ST_XON1,
+	REG_ST_XON2,
+	REG_ST_XOFF1,
+	REG_ST_XOFF2,
+	REG_ST_ITCR,
+	REG_ST_ITIP,
+	REG_ST_ABCR,
+	REG_ST_ABIMSC,
+
+	/* The size of the array - must be last */
+	REG_ARRAY_SIZE,
+};
+
+#endif
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 94294558943c..1c0884d8ef32 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -22,7 +22,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  */
-#include <linux/module.h>
 #include <linux/tty.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
@@ -155,7 +154,6 @@ struct atmel_uart_port {
 	struct circ_buf		rx_ring;
 
 	struct mctrl_gpios	*gpios;
-	int			gpio_irq[UART_GPIO_MAX];
 	unsigned int		tx_done_mask;
 	u32			fifo_size;
 	u32			rts_high;
@@ -190,8 +188,6 @@ static const struct of_device_id atmel_serial_dt_ids[] = {
 	{ .compatible = "atmel,at91sam9260-usart" },
 	{ /* sentinel */ }
 };
-
-MODULE_DEVICE_TABLE(of, atmel_serial_dt_ids);
 #endif
 
 static inline struct atmel_uart_port *
@@ -550,27 +546,21 @@ static void atmel_enable_ms(struct uart_port *port)
 
 	atmel_port->ms_irq_enabled = true;
 
-	if (atmel_port->gpio_irq[UART_GPIO_CTS] >= 0)
-		enable_irq(atmel_port->gpio_irq[UART_GPIO_CTS]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS))
 		ier |= ATMEL_US_CTSIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_DSR] >= 0)
-		enable_irq(atmel_port->gpio_irq[UART_GPIO_DSR]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DSR))
 		ier |= ATMEL_US_DSRIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_RI] >= 0)
-		enable_irq(atmel_port->gpio_irq[UART_GPIO_RI]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_RI))
 		ier |= ATMEL_US_RIIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_DCD] >= 0)
-		enable_irq(atmel_port->gpio_irq[UART_GPIO_DCD]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DCD))
 		ier |= ATMEL_US_DCDIC;
 
 	atmel_uart_writel(port, ATMEL_US_IER, ier);
+
+	mctrl_gpio_enable_ms(atmel_port->gpios);
 }
 
 /*
@@ -589,24 +579,18 @@ static void atmel_disable_ms(struct uart_port *port)
 
 	atmel_port->ms_irq_enabled = false;
 
-	if (atmel_port->gpio_irq[UART_GPIO_CTS] >= 0)
-		disable_irq(atmel_port->gpio_irq[UART_GPIO_CTS]);
-	else
+	mctrl_gpio_disable_ms(atmel_port->gpios);
+
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_CTS))
 		idr |= ATMEL_US_CTSIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_DSR] >= 0)
-		disable_irq(atmel_port->gpio_irq[UART_GPIO_DSR]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DSR))
 		idr |= ATMEL_US_DSRIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_RI] >= 0)
-		disable_irq(atmel_port->gpio_irq[UART_GPIO_RI]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_RI))
 		idr |= ATMEL_US_RIIC;
 
-	if (atmel_port->gpio_irq[UART_GPIO_DCD] >= 0)
-		disable_irq(atmel_port->gpio_irq[UART_GPIO_DCD]);
-	else
+	if (!mctrl_gpio_to_gpiod(atmel_port->gpios, UART_GPIO_DCD))
 		idr |= ATMEL_US_DCDIC;
 
 	atmel_uart_writel(port, ATMEL_US_IDR, idr);
@@ -1264,7 +1248,6 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
 	struct uart_port *port = dev_id;
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int status, pending, mask, pass_counter = 0;
-	bool gpio_handled = false;
 
 	spin_lock(&atmel_port->lock_suspended);
 
@@ -1272,24 +1255,6 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
 		status = atmel_get_lines_status(port);
 		mask = atmel_uart_readl(port, ATMEL_US_IMR);
 		pending = status & mask;
-		if (!gpio_handled) {
-			/*
-			 * Dealing with GPIO interrupt
-			 */
-			if (irq == atmel_port->gpio_irq[UART_GPIO_CTS])
-				pending |= ATMEL_US_CTSIC;
-
-			if (irq == atmel_port->gpio_irq[UART_GPIO_DSR])
-				pending |= ATMEL_US_DSRIC;
-
-			if (irq == atmel_port->gpio_irq[UART_GPIO_RI])
-				pending |= ATMEL_US_RIIC;
-
-			if (irq == atmel_port->gpio_irq[UART_GPIO_DCD])
-				pending |= ATMEL_US_DCDIC;
-
-			gpio_handled = true;
-		}
 		if (!pending)
 			break;
 
@@ -1778,45 +1743,6 @@ static void atmel_get_ip_name(struct uart_port *port)
 	}
 }
 
-static void atmel_free_gpio_irq(struct uart_port *port)
-{
-	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-	enum mctrl_gpio_idx i;
-
-	for (i = 0; i < UART_GPIO_MAX; i++)
-		if (atmel_port->gpio_irq[i] >= 0)
-			free_irq(atmel_port->gpio_irq[i], port);
-}
-
-static int atmel_request_gpio_irq(struct uart_port *port)
-{
-	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-	int *irq = atmel_port->gpio_irq;
-	enum mctrl_gpio_idx i;
-	int err = 0;
-
-	for (i = 0; (i < UART_GPIO_MAX) && !err; i++) {
-		if (irq[i] < 0)
-			continue;
-
-		irq_set_status_flags(irq[i], IRQ_NOAUTOEN);
-		err = request_irq(irq[i], atmel_interrupt, IRQ_TYPE_EDGE_BOTH,
-				  "atmel_serial", port);
-		if (err)
-			dev_err(port->dev, "atmel_startup - Can't get %d irq\n",
-				irq[i]);
-	}
-
-	/*
-	 * If something went wrong, rollback.
-	 */
-	while (err && (--i >= 0))
-		if (irq[i] >= 0)
-			free_irq(irq[i], port);
-
-	return err;
-}
-
 /*
  * Perform initialization and enable port for reception
  */
@@ -1846,13 +1772,6 @@ static int atmel_startup(struct uart_port *port)
 		return retval;
 	}
 
-	/*
-	 * Get the GPIO lines IRQ
-	 */
-	retval = atmel_request_gpio_irq(port);
-	if (retval)
-		goto free_irq;
-
 	tasklet_enable(&atmel_port->tasklet);
 
 	/*
@@ -1948,11 +1867,6 @@ static int atmel_startup(struct uart_port *port)
 	}
 
 	return 0;
-
-free_irq:
-	free_irq(port->irq, port);
-
-	return retval;
 }
 
 /*
@@ -2018,7 +1932,6 @@ static void atmel_shutdown(struct uart_port *port)
 	 * Free the interrupts
 	 */
 	free_irq(port->irq, port);
-	atmel_free_gpio_irq(port);
 
 	atmel_port->ms_irq_enabled = false;
 
@@ -2686,26 +2599,6 @@ static int atmel_serial_resume(struct platform_device *pdev)
 #define atmel_serial_resume NULL
 #endif
 
-static int atmel_init_gpios(struct atmel_uart_port *p, struct device *dev)
-{
-	enum mctrl_gpio_idx i;
-	struct gpio_desc *gpiod;
-
-	p->gpios = mctrl_gpio_init_noauto(dev, 0);
-	if (IS_ERR(p->gpios))
-		return PTR_ERR(p->gpios);
-
-	for (i = 0; i < UART_GPIO_MAX; i++) {
-		gpiod = mctrl_gpio_to_gpiod(p->gpios, i);
-		if (gpiod && (gpiod_get_direction(gpiod) == GPIOF_DIR_IN))
-			p->gpio_irq[i] = gpiod_to_irq(gpiod);
-		else
-			p->gpio_irq[i] = -EINVAL;
-	}
-
-	return 0;
-}
-
 static void atmel_serial_probe_fifos(struct atmel_uart_port *port,
 				     struct platform_device *pdev)
 {
@@ -2788,16 +2681,16 @@ static int atmel_serial_probe(struct platform_device *pdev)
 
 	spin_lock_init(&port->lock_suspended);
 
-	ret = atmel_init_gpios(port, &pdev->dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to initialize GPIOs.");
-		goto err_clear_bit;
-	}
-
 	ret = atmel_init_port(port, pdev);
 	if (ret)
 		goto err_clear_bit;
 
+	port->gpios = mctrl_gpio_init(&port->uart, 0);
+	if (IS_ERR(port->gpios)) {
+		ret = PTR_ERR(port->gpios);
+		goto err_clear_bit;
+	}
+
 	if (!atmel_use_pdc_rx(&port->uart)) {
 		ret = -ENOMEM;
 		data = kmalloc(sizeof(struct atmel_uart_char)
@@ -2866,37 +2759,14 @@ err:
 	return ret;
 }
 
-static int atmel_serial_remove(struct platform_device *pdev)
-{
-	struct uart_port *port = platform_get_drvdata(pdev);
-	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-	int ret = 0;
-
-	tasklet_kill(&atmel_port->tasklet);
-
-	device_init_wakeup(&pdev->dev, 0);
-
-	ret = uart_remove_one_port(&atmel_uart, port);
-
-	kfree(atmel_port->rx_ring.buf);
-
-	/* "port" is allocated statically, so we shouldn't free it */
-
-	clear_bit(port->line, atmel_ports_in_use);
-
-	clk_put(atmel_port->clk);
-
-	return ret;
-}
-
 static struct platform_driver atmel_serial_driver = {
 	.probe		= atmel_serial_probe,
-	.remove		= atmel_serial_remove,
 	.suspend	= atmel_serial_suspend,
 	.resume		= atmel_serial_resume,
 	.driver		= {
-		.name	= "atmel_usart",
-		.of_match_table	= of_match_ptr(atmel_serial_dt_ids),
+		.name			= "atmel_usart",
+		.of_match_table		= of_match_ptr(atmel_serial_dt_ids),
+		.suppress_bind_attrs    = true,
 	},
 };
 
@@ -2914,17 +2784,4 @@ static int __init atmel_serial_init(void)
 
 	return ret;
 }
-
-static void __exit atmel_serial_exit(void)
-{
-	platform_driver_unregister(&atmel_serial_driver);
-	uart_unregister_driver(&atmel_uart);
-}
-
-module_init(atmel_serial_init);
-module_exit(atmel_serial_exit);
-
-MODULE_AUTHOR("Rick Bronson");
-MODULE_DESCRIPTION("Atmel AT91 / AT32 serial port driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:atmel_usart");
+device_initcall(atmel_serial_init);
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index a1c0a89d9c7f..c28e5c24da16 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -653,7 +653,7 @@ static struct uart_ops bcm_uart_ops = {
 
 
 #ifdef CONFIG_SERIAL_BCM63XX_CONSOLE
-static inline void wait_for_xmitr(struct uart_port *port)
+static void wait_for_xmitr(struct uart_port *port)
 {
 	unsigned int tmout;
 
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index ae3cf94b146b..293ecbb00684 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -213,7 +213,7 @@ static void bfin_serial_stop_rx(struct uart_port *port)
 static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 {
 	unsigned int status, ch, flg;
-	static struct timeval anomaly_start = { .tv_sec = 0 };
+	static u64 anomaly_start;
 
 	status = UART_GET_LSR(uart);
 	UART_CLEAR_LSR(uart);
@@ -246,27 +246,24 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 		 * character time +/- some percent.  So 1.5 sounds good.  All other
 		 * Blackfin families operate properly.  Woo.
 		 */
-		if (anomaly_start.tv_sec) {
-			struct timeval curr;
-			suseconds_t usecs;
+		if (anomaly_start > 0) {
+			u64 curr, nsecs, threshold_ns;
 
 			if ((~ch & (~ch + 1)) & 0xff)
 				goto known_good_char;
 
-			do_gettimeofday(&curr);
-			if (curr.tv_sec - anomaly_start.tv_sec > 1)
+			curr = ktime_get_ns();
+			nsecs = curr - anomaly_start;
+			if (nsecs >> 32)
 				goto known_good_char;
 
-			usecs = 0;
-			if (curr.tv_sec != anomaly_start.tv_sec)
-				usecs += USEC_PER_SEC;
-			usecs += curr.tv_usec - anomaly_start.tv_usec;
-
-			if (usecs > UART_GET_ANOMALY_THRESHOLD(uart))
+			threshold_ns = UART_GET_ANOMALY_THRESHOLD(uart)
+							* NSEC_PER_USEC;
+			if (nsecs > threshold_ns)
 				goto known_good_char;
 
 			if (ch)
-				anomaly_start.tv_sec = 0;
+				anomaly_start = 0;
 			else
 				anomaly_start = curr;
 
@@ -274,14 +271,14 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 
  known_good_char:
 			status &= ~BI;
-			anomaly_start.tv_sec = 0;
+			anomaly_start = 0;
 		}
 	}
 
 	if (status & BI) {
 		if (ANOMALY_05000363)
 			if (bfin_revid() < 5)
-				do_gettimeofday(&anomaly_start);
+				anomaly_start = ktime_get_ns();
 		uart->port.icount.brk++;
 		if (uart_handle_break(&uart->port))
 			goto ignore_char;
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index b5b2f2be6be7..3f2423690d01 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -71,10 +71,16 @@ static int __init parse_options(struct earlycon_device *device, char *options)
 		return -EINVAL;
 
 	switch (port->iotype) {
+	case UPIO_MEM:
+		port->mapbase = addr;
+		break;
+	case UPIO_MEM16:
+		port->regshift = 1;
+		port->mapbase = addr;
+		break;
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
-		port->regshift = 2;	/* fall-through */
-	case UPIO_MEM:
+		port->regshift = 2;
 		port->mapbase = addr;
 		break;
 	case UPIO_PORT:
@@ -91,10 +97,11 @@ static int __init parse_options(struct earlycon_device *device, char *options)
 		strlcpy(device->options, options, length);
 	}
 
-	if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM32 ||
-	    port->iotype == UPIO_MEM32BE)
+	if (port->iotype == UPIO_MEM || port->iotype == UPIO_MEM16 ||
+	    port->iotype == UPIO_MEM32 || port->iotype == UPIO_MEM32BE)
 		pr_info("Early serial console at MMIO%s 0x%llx (options '%s')\n",
 			(port->iotype == UPIO_MEM) ? "" :
+			(port->iotype == UPIO_MEM16) ? "16" :
 			(port->iotype == UPIO_MEM32) ? "32" : "32be",
 			(unsigned long long)port->mapbase,
 			device->options);
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index ffc7cb2585a6..c60a8d5e4020 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -22,7 +22,6 @@
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   *
   */
-#define SERIAL_DO_RESTART
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 016e4be05cec..9362f54c816c 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -44,6 +44,8 @@
 #include <linux/platform_data/serial-imx.h>
 #include <linux/platform_data/dma-imx.h>
 
+#include "serial_mctrl_gpio.h"
+
 /* Register definitions */
 #define URXD0 0x0  /* Receiver Register */
 #define URTX0 0x40 /* Transmitter Register */
@@ -148,8 +150,11 @@
 #define USR2_TXFE	 (1<<14) /* Transmit buffer FIFO empty */
 #define USR2_DTRF	 (1<<13) /* DTR edge interrupt flag */
 #define USR2_IDLE	 (1<<12) /* Idle condition */
+#define USR2_RIDELT	 (1<<10) /* Ring Interrupt Delta */
+#define USR2_RIIN	 (1<<9)	 /* Ring Indicator Input */
 #define USR2_IRINT	 (1<<8)	 /* Serial infrared interrupt flag */
 #define USR2_WAKE	 (1<<7)	 /* Wake */
+#define USR2_DCDIN	 (1<<5)	 /* Data Carrier Detect Input */
 #define USR2_RTSF	 (1<<4)	 /* RTS edge interrupt flag */
 #define USR2_TXDC	 (1<<3)	 /* Transmitter complete */
 #define USR2_BRCD	 (1<<2)	 /* Break condition */
@@ -206,6 +211,8 @@ struct imx_port {
 	struct clk		*clk_per;
 	const struct imx_uart_data *devdata;
 
+	struct mctrl_gpios *gpios;
+
 	/* DMA fields */
 	unsigned int		dma_is_inited:1;
 	unsigned int		dma_is_enabled:1;
@@ -308,49 +315,24 @@ static void imx_port_ucrs_restore(struct uart_port *port,
 }
 #endif
 
-/*
- * Handle any change of modem status signal since we were last called.
- */
-static void imx_mctrl_check(struct imx_port *sport)
+static void imx_port_rts_active(struct imx_port *sport, unsigned long *ucr2)
 {
-	unsigned int status, changed;
-
-	status = sport->port.ops->get_mctrl(&sport->port);
-	changed = status ^ sport->old_status;
-
-	if (changed == 0)
-		return;
-
-	sport->old_status = status;
+	*ucr2 &= ~UCR2_CTSC;
+	*ucr2 |= UCR2_CTS;
 
-	if (changed & TIOCM_RI)
-		sport->port.icount.rng++;
-	if (changed & TIOCM_DSR)
-		sport->port.icount.dsr++;
-	if (changed & TIOCM_CAR)
-		uart_handle_dcd_change(&sport->port, status & TIOCM_CAR);
-	if (changed & TIOCM_CTS)
-		uart_handle_cts_change(&sport->port, status & TIOCM_CTS);
-
-	wake_up_interruptible(&sport->port.state->port.delta_msr_wait);
+	mctrl_gpio_set(sport->gpios, sport->port.mctrl | TIOCM_RTS);
 }
 
-/*
- * This is our per-port timeout handler, for checking the
- * modem status signals.
- */
-static void imx_timeout(unsigned long data)
+static void imx_port_rts_inactive(struct imx_port *sport, unsigned long *ucr2)
 {
-	struct imx_port *sport = (struct imx_port *)data;
-	unsigned long flags;
+	*ucr2 &= ~(UCR2_CTSC | UCR2_CTS);
 
-	if (sport->port.state) {
-		spin_lock_irqsave(&sport->port.lock, flags);
-		imx_mctrl_check(sport);
-		spin_unlock_irqrestore(&sport->port.lock, flags);
+	mctrl_gpio_set(sport->gpios, sport->port.mctrl & ~TIOCM_RTS);
+}
 
-		mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT);
-	}
+static void imx_port_rts_auto(struct imx_port *sport, unsigned long *ucr2)
+{
+	*ucr2 |= UCR2_CTSC;
 }
 
 /*
@@ -376,9 +358,9 @@ static void imx_stop_tx(struct uart_port *port)
 	    readl(port->membase + USR2) & USR2_TXDC) {
 		temp = readl(port->membase + UCR2);
 		if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND)
-			temp &= ~UCR2_CTS;
+			imx_port_rts_inactive(sport, &temp);
 		else
-			temp |= UCR2_CTS;
+			imx_port_rts_active(sport, &temp);
 		writel(temp, port->membase + UCR2);
 
 		temp = readl(port->membase + UCR4);
@@ -420,6 +402,8 @@ static void imx_enable_ms(struct uart_port *port)
 	struct imx_port *sport = (struct imx_port *)port;
 
 	mod_timer(&sport->timer, jiffies);
+
+	mctrl_gpio_enable_ms(sport->gpios);
 }
 
 static void imx_dma_tx(struct imx_port *sport);
@@ -579,14 +563,14 @@ static void imx_start_tx(struct uart_port *port)
 	unsigned long temp;
 
 	if (port->rs485.flags & SER_RS485_ENABLED) {
-		/* enable transmitter and shifter empty irq */
 		temp = readl(port->membase + UCR2);
 		if (port->rs485.flags & SER_RS485_RTS_ON_SEND)
-			temp &= ~UCR2_CTS;
+			imx_port_rts_inactive(sport, &temp);
 		else
-			temp |= UCR2_CTS;
+			imx_port_rts_active(sport, &temp);
 		writel(temp, port->membase + UCR2);
 
+		/* enable transmitter and shifter empty irq */
 		temp = readl(port->membase + UCR4);
 		temp |= UCR4_TCEN;
 		writel(temp, port->membase + UCR4);
@@ -801,23 +785,35 @@ static unsigned int imx_tx_empty(struct uart_port *port)
 /*
  * We have a modem side uart, so the meanings of RTS and CTS are inverted.
  */
-static unsigned int imx_get_mctrl(struct uart_port *port)
+static unsigned int imx_get_hwmctrl(struct imx_port *sport)
 {
-	struct imx_port *sport = (struct imx_port *)port;
-	unsigned int tmp = TIOCM_DSR | TIOCM_CAR;
+	unsigned int tmp = TIOCM_DSR;
+	unsigned usr1 = readl(sport->port.membase + USR1);
 
-	if (readl(sport->port.membase + USR1) & USR1_RTSS)
+	if (usr1 & USR1_RTSS)
 		tmp |= TIOCM_CTS;
 
-	if (readl(sport->port.membase + UCR2) & UCR2_CTS)
-		tmp |= TIOCM_RTS;
+	/* in DCE mode DCDIN is always 0 */
+	if (!(usr1 & USR2_DCDIN))
+		tmp |= TIOCM_CAR;
 
-	if (readl(sport->port.membase + uts_reg(sport)) & UTS_LOOP)
-		tmp |= TIOCM_LOOP;
+	/* in DCE mode RIIN is always 0 */
+	if (readl(sport->port.membase + USR2) & USR2_RIIN)
+		tmp |= TIOCM_RI;
 
 	return tmp;
 }
 
+static unsigned int imx_get_mctrl(struct uart_port *port)
+{
+	struct imx_port *sport = (struct imx_port *)port;
+	unsigned int ret = imx_get_hwmctrl(sport);
+
+	mctrl_gpio_get(sport->gpios, &ret);
+
+	return ret;
+}
+
 static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
 	struct imx_port *sport = (struct imx_port *)port;
@@ -831,10 +827,17 @@ static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
 		writel(temp, sport->port.membase + UCR2);
 	}
 
+	temp = readl(sport->port.membase + UCR3) & ~UCR3_DSR;
+	if (!(mctrl & TIOCM_DTR))
+		temp |= UCR3_DSR;
+	writel(temp, sport->port.membase + UCR3);
+
 	temp = readl(sport->port.membase + uts_reg(sport)) & ~UTS_LOOP;
 	if (mctrl & TIOCM_LOOP)
 		temp |= UTS_LOOP;
 	writel(temp, sport->port.membase + uts_reg(sport));
+
+	mctrl_gpio_set(sport->gpios, mctrl);
 }
 
 /*
@@ -857,6 +860,51 @@ static void imx_break_ctl(struct uart_port *port, int break_state)
 	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
+/*
+ * Handle any change of modem status signal since we were last called.
+ */
+static void imx_mctrl_check(struct imx_port *sport)
+{
+	unsigned int status, changed;
+
+	status = imx_get_hwmctrl(sport);
+	changed = status ^ sport->old_status;
+
+	if (changed == 0)
+		return;
+
+	sport->old_status = status;
+
+	if (changed & TIOCM_RI)
+		sport->port.icount.rng++;
+	if (changed & TIOCM_DSR)
+		sport->port.icount.dsr++;
+	if (changed & TIOCM_CAR)
+		uart_handle_dcd_change(&sport->port, status & TIOCM_CAR);
+	if (changed & TIOCM_CTS)
+		uart_handle_cts_change(&sport->port, status & TIOCM_CTS);
+
+	wake_up_interruptible(&sport->port.state->port.delta_msr_wait);
+}
+
+/*
+ * This is our per-port timeout handler, for checking the
+ * modem status signals.
+ */
+static void imx_timeout(unsigned long data)
+{
+	struct imx_port *sport = (struct imx_port *)data;
+	unsigned long flags;
+
+	if (sport->port.state) {
+		spin_lock_irqsave(&sport->port.lock, flags);
+		imx_mctrl_check(sport);
+		spin_unlock_irqrestore(&sport->port.lock, flags);
+
+		mod_timer(&sport->timer, jiffies + MCTRL_TIMEOUT);
+	}
+}
+
 #define RX_BUF_SIZE	(PAGE_SIZE)
 static void imx_rx_dma_done(struct imx_port *sport)
 {
@@ -1207,6 +1255,8 @@ static void imx_shutdown(struct uart_port *port)
 		imx_uart_dma_exit(sport);
 	}
 
+	mctrl_gpio_disable_ms(sport->gpios);
+
 	spin_lock_irqsave(&sport->port.lock, flags);
 	temp = readl(sport->port.membase + UCR2);
 	temp &= ~(UCR2_TXEN);
@@ -1284,9 +1334,10 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 {
 	struct imx_port *sport = (struct imx_port *)port;
 	unsigned long flags;
-	unsigned int ucr2, old_ucr1, old_ucr2, baud, quot;
+	unsigned long ucr2, old_ucr1, old_ucr2;
+	unsigned int baud, quot;
 	unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8;
-	unsigned int div, ufcr;
+	unsigned long div, ufcr;
 	unsigned long num, denom;
 	uint64_t tdiv64;
 
@@ -1315,19 +1366,25 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 				 * it under manual control and keep transmitter
 				 * disabled.
 				 */
-				if (!(port->rs485.flags &
-				      SER_RS485_RTS_AFTER_SEND))
-					ucr2 |= UCR2_CTS;
+				if (port->rs485.flags &
+				    SER_RS485_RTS_AFTER_SEND)
+					imx_port_rts_inactive(sport, &ucr2);
+				else
+					imx_port_rts_active(sport, &ucr2);
 			} else {
-				ucr2 |= UCR2_CTSC;
+				imx_port_rts_auto(sport, &ucr2);
 			}
 		} else {
 			termios->c_cflag &= ~CRTSCTS;
 		}
-	} else if (port->rs485.flags & SER_RS485_ENABLED)
+	} else if (port->rs485.flags & SER_RS485_ENABLED) {
 		/* disable transmitter */
-		if (!(port->rs485.flags & SER_RS485_RTS_AFTER_SEND))
-			ucr2 |= UCR2_CTS;
+		if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND)
+			imx_port_rts_inactive(sport, &ucr2);
+		else
+			imx_port_rts_active(sport, &ucr2);
+	}
+
 
 	if (termios->c_cflag & CSTOPB)
 		ucr2 |= UCR2_STPB;
@@ -1568,11 +1625,10 @@ static int imx_rs485_config(struct uart_port *port,
 
 		/* disable transmitter */
 		temp = readl(sport->port.membase + UCR2);
-		temp &= ~UCR2_CTSC;
 		if (rs485conf->flags & SER_RS485_RTS_AFTER_SEND)
-			temp &= ~UCR2_CTS;
+			imx_port_rts_inactive(sport, &temp);
 		else
-			temp |= UCR2_CTS;
+			imx_port_rts_active(sport, &temp);
 		writel(temp, sport->port.membase + UCR2);
 	}
 
@@ -1857,11 +1913,10 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 		struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *of_id =
-			of_match_device(imx_uart_dt_ids, &pdev->dev);
 	int ret;
 
-	if (!np)
+	sport->devdata = of_device_get_match_data(&pdev->dev);
+	if (!sport->devdata)
 		/* no device tree device */
 		return 1;
 
@@ -1878,8 +1933,6 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	if (of_get_property(np, "fsl,dte-mode", NULL))
 		sport->dte_mode = 1;
 
-	sport->devdata = of_id->data;
-
 	return 0;
 }
 #else
@@ -1948,6 +2001,10 @@ static int serial_imx_probe(struct platform_device *pdev)
 	sport->timer.function = imx_timeout;
 	sport->timer.data     = (unsigned long)sport;
 
+	sport->gpios = mctrl_gpio_init(&sport->port, 0);
+	if (IS_ERR(sport->gpios))
+		return PTR_ERR(sport->gpios);
+
 	sport->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(sport->clk_ipg)) {
 		ret = PTR_ERR(sport->clk_ipg);
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index efbd87a76656..a119f11bf2f4 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -70,7 +70,7 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto out;
 	}
 
-	rc = pci_request_regions(pdev, "jsm");
+	rc = pci_request_regions(pdev, JSM_DRIVER_NAME);
 	if (rc) {
 		dev_err(&pdev->dev, "pci_request_region FAILED\n");
 		goto out_disable_device;
@@ -328,7 +328,7 @@ static struct pci_device_id jsm_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci, jsm_pci_tbl);
 
 static struct pci_driver jsm_driver = {
-	.name		= "jsm",
+	.name		= JSM_DRIVER_NAME,
 	.id_table	= jsm_pci_tbl,
 	.probe		= jsm_probe_one,
 	.remove		= jsm_remove_one,
diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c
index 932b2accd06f..c6fdd6369534 100644
--- a/drivers/tty/serial/jsm/jsm_neo.c
+++ b/drivers/tty/serial/jsm/jsm_neo.c
@@ -714,7 +714,7 @@ static void neo_clear_break(struct jsm_channel *ch)
 /*
  * Parse the ISR register.
  */
-static inline void neo_parse_isr(struct jsm_board *brd, u32 port)
+static void neo_parse_isr(struct jsm_board *brd, u32 port)
 {
 	struct jsm_channel *ch;
 	u8 isr;
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index 8f7f83a14c93..0eeb64f2499c 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -990,7 +990,7 @@ static void __init m32r_sio_register_ports(struct uart_driver *drv)
 /*
  *	Wait for transmitter & holding register to empty
  */
-static inline void wait_for_xmitr(struct uart_sio_port *up)
+static void wait_for_xmitr(struct uart_sio_port *up)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c
index 3141aa20843d..a44290e9b5a8 100644
--- a/drivers/tty/serial/men_z135_uart.c
+++ b/drivers/tty/serial/men_z135_uart.c
@@ -158,7 +158,7 @@ static inline void men_z135_reg_set(struct men_z135_port *uart,
  * @addr: Register address
  * @val: value to clear
  */
-static inline void men_z135_reg_clr(struct men_z135_port *uart,
+static void men_z135_reg_clr(struct men_z135_port *uart,
 				u32 addr, u32 val)
 {
 	struct uart_port *port = &uart->port;
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 0fc83c962d10..b12a37bd37b6 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -57,6 +57,7 @@
 #define AML_UART_RX_EMPTY		BIT(20)
 #define AML_UART_TX_FULL		BIT(21)
 #define AML_UART_TX_EMPTY		BIT(22)
+#define AML_UART_XMIT_BUSY		BIT(25)
 #define AML_UART_ERR			(AML_UART_PARITY_ERR | \
 					 AML_UART_FRAME_ERR  | \
 					 AML_UART_TX_FIFO_WERR)
@@ -100,7 +101,8 @@ static unsigned int meson_uart_tx_empty(struct uart_port *port)
 	u32 val;
 
 	val = readl(port->membase + AML_UART_STATUS);
-	return (val & AML_UART_TX_EMPTY) ? TIOCSER_TEMT : 0;
+	val &= (AML_UART_TX_EMPTY | AML_UART_XMIT_BUSY);
+	return (val == AML_UART_TX_EMPTY) ? TIOCSER_TEMT : 0;
 }
 
 static void meson_uart_stop_tx(struct uart_port *port)
@@ -108,7 +110,7 @@ static void meson_uart_stop_tx(struct uart_port *port)
 	u32 val;
 
 	val = readl(port->membase + AML_UART_CONTROL);
-	val &= ~AML_UART_TX_EN;
+	val &= ~AML_UART_TX_INT_EN;
 	writel(val, port->membase + AML_UART_CONTROL);
 }
 
@@ -131,7 +133,7 @@ static void meson_uart_shutdown(struct uart_port *port)
 	spin_lock_irqsave(&port->lock, flags);
 
 	val = readl(port->membase + AML_UART_CONTROL);
-	val &= ~(AML_UART_RX_EN | AML_UART_TX_EN);
+	val &= ~AML_UART_RX_EN;
 	val &= ~(AML_UART_RX_INT_EN | AML_UART_TX_INT_EN);
 	writel(val, port->membase + AML_UART_CONTROL);
 
@@ -142,6 +144,7 @@ static void meson_uart_start_tx(struct uart_port *port)
 {
 	struct circ_buf *xmit = &port->state->xmit;
 	unsigned int ch;
+	u32 val;
 
 	if (uart_tx_stopped(port)) {
 		meson_uart_stop_tx(port);
@@ -165,6 +168,12 @@ static void meson_uart_start_tx(struct uart_port *port)
 		port->icount.tx++;
 	}
 
+	if (!uart_circ_empty(xmit)) {
+		val = readl(port->membase + AML_UART_CONTROL);
+		val |= AML_UART_TX_INT_EN;
+		writel(val, port->membase + AML_UART_CONTROL);
+	}
+
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(port);
 }
@@ -228,8 +237,10 @@ static irqreturn_t meson_uart_interrupt(int irq, void *dev_id)
 	if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_RX_EMPTY))
 		meson_receive_chars(port);
 
-	if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_FULL))
-		meson_uart_start_tx(port);
+	if (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_FULL)) {
+		if (readl(port->membase + AML_UART_CONTROL) & AML_UART_TX_INT_EN)
+			meson_uart_start_tx(port);
+	}
 
 	spin_unlock(&port->lock);
 
@@ -241,10 +252,9 @@ static const char *meson_uart_type(struct uart_port *port)
 	return (port->type == PORT_MESON) ? "meson_uart" : NULL;
 }
 
-static int meson_uart_startup(struct uart_port *port)
+static void meson_uart_reset(struct uart_port *port)
 {
 	u32 val;
-	int ret = 0;
 
 	val = readl(port->membase + AML_UART_CONTROL);
 	val |= (AML_UART_RX_RST | AML_UART_TX_RST | AML_UART_CLR_ERR);
@@ -252,6 +262,18 @@ static int meson_uart_startup(struct uart_port *port)
 
 	val &= ~(AML_UART_RX_RST | AML_UART_TX_RST | AML_UART_CLR_ERR);
 	writel(val, port->membase + AML_UART_CONTROL);
+}
+
+static int meson_uart_startup(struct uart_port *port)
+{
+	u32 val;
+	int ret = 0;
+
+	val = readl(port->membase + AML_UART_CONTROL);
+	val |= AML_UART_CLR_ERR;
+	writel(val, port->membase + AML_UART_CONTROL);
+	val &= ~AML_UART_CLR_ERR;
+	writel(val, port->membase + AML_UART_CONTROL);
 
 	val |= (AML_UART_RX_EN | AML_UART_TX_EN);
 	writel(val, port->membase + AML_UART_CONTROL);
@@ -272,7 +294,7 @@ static void meson_uart_change_speed(struct uart_port *port, unsigned long baud)
 {
 	u32 val;
 
-	while (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_EMPTY))
+	while (!meson_uart_tx_empty(port))
 		cpu_relax();
 
 	val = readl(port->membase + AML_UART_REG5);
@@ -367,9 +389,26 @@ static int meson_uart_verify_port(struct uart_port *port,
 	return ret;
 }
 
+static int meson_uart_res_size(struct uart_port *port)
+{
+	struct platform_device *pdev = to_platform_device(port->dev);
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(port->dev, "cannot obtain I/O memory region");
+		return -ENODEV;
+	}
+
+	return resource_size(res);
+}
+
 static void meson_uart_release_port(struct uart_port *port)
 {
+	int size = meson_uart_res_size(port);
+
 	if (port->flags & UPF_IOREMAP) {
+		devm_release_mem_region(port->dev, port->mapbase, size);
 		devm_iounmap(port->dev, port->membase);
 		port->membase = NULL;
 	}
@@ -377,16 +416,10 @@ static void meson_uart_release_port(struct uart_port *port)
 
 static int meson_uart_request_port(struct uart_port *port)
 {
-	struct platform_device *pdev = to_platform_device(port->dev);
-	struct resource *res;
-	int size;
+	int size = meson_uart_res_size(port);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "cannot obtain I/O memory region");
-		return -ENODEV;
-	}
-	size = resource_size(res);
+	if (size < 0)
+		return size;
 
 	if (!devm_request_mem_region(port->dev, port->mapbase, size,
 				     dev_name(port->dev))) {
@@ -448,6 +481,7 @@ static void meson_serial_console_write(struct console *co, const char *s,
 	struct uart_port *port;
 	unsigned long flags;
 	int locked;
+	u32 val, tmp;
 
 	port = meson_ports[co->index];
 	if (!port)
@@ -463,7 +497,13 @@ static void meson_serial_console_write(struct console *co, const char *s,
 		locked = 1;
 	}
 
+	val = readl(port->membase + AML_UART_CONTROL);
+	val |= AML_UART_TX_EN;
+	tmp = val & ~(AML_UART_TX_INT_EN | AML_UART_RX_INT_EN);
+	writel(tmp, port->membase + AML_UART_CONTROL);
+
 	uart_console_write(port, s, count, meson_console_putchar);
+	writel(val, port->membase + AML_UART_CONTROL);
 
 	if (locked)
 		spin_unlock(&port->lock);
@@ -570,6 +610,12 @@ static int meson_uart_probe(struct platform_device *pdev)
 	meson_ports[pdev->id] = port;
 	platform_set_drvdata(pdev, port);
 
+	/* reset port before registering (and possibly registering console) */
+	if (meson_uart_request_port(port) >= 0) {
+		meson_uart_reset(port);
+		meson_uart_release_port(port);
+	}
+
 	ret = uart_add_one_port(&meson_uart_driver, port);
 	if (ret)
 		meson_ports[pdev->id] = NULL;
diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c
deleted file mode 100644
index 5da7622e88c3..000000000000
--- a/drivers/tty/serial/nwpserial.c
+++ /dev/null
@@ -1,477 +0,0 @@
-/*
- *  Serial Port driver for a NWP uart device
- *
- *    Copyright (C) 2008 IBM Corp., Benjamin Krill <ben@codiert.org>
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/console.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/serial_core.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/irqreturn.h>
-#include <linux/mutex.h>
-#include <linux/of_platform.h>
-#include <linux/of_device.h>
-#include <linux/nwpserial.h>
-#include <linux/delay.h>
-#include <asm/prom.h>
-#include <asm/dcr.h>
-
-#define NWPSERIAL_NR               2
-
-#define NWPSERIAL_STATUS_RXVALID 0x1
-#define NWPSERIAL_STATUS_TXFULL  0x2
-
-struct nwpserial_port {
-	struct uart_port port;
-	dcr_host_t dcr_host;
-	unsigned int ier;
-	unsigned int mcr;
-};
-
-static DEFINE_MUTEX(nwpserial_mutex);
-static struct nwpserial_port nwpserial_ports[NWPSERIAL_NR];
-
-static void wait_for_bits(struct nwpserial_port *up, int bits)
-{
-	unsigned int status, tmout = 10000;
-
-	/* Wait up to 10ms for the character(s) to be sent. */
-	do {
-		status = dcr_read(up->dcr_host, UART_LSR);
-
-		if (--tmout == 0)
-			break;
-		udelay(1);
-	} while ((status & bits) != bits);
-}
-
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
-static void nwpserial_console_putchar(struct uart_port *port, int c)
-{
-	struct nwpserial_port *up;
-	up = container_of(port, struct nwpserial_port, port);
-	/* check if tx buffer is full */
-	wait_for_bits(up, UART_LSR_THRE);
-	dcr_write(up->dcr_host, UART_TX, c);
-	up->port.icount.tx++;
-}
-
-static void
-nwpserial_console_write(struct console *co, const char *s, unsigned int count)
-{
-	struct nwpserial_port *up = &nwpserial_ports[co->index];
-	unsigned long flags;
-	int locked = 1;
-
-	if (oops_in_progress)
-		locked = spin_trylock_irqsave(&up->port.lock, flags);
-	else
-		spin_lock_irqsave(&up->port.lock, flags);
-
-	/* save and disable interrupt */
-	up->ier = dcr_read(up->dcr_host, UART_IER);
-	dcr_write(up->dcr_host, UART_IER, up->ier & ~UART_IER_RDI);
-
-	uart_console_write(&up->port, s, count, nwpserial_console_putchar);
-
-	/* wait for transmitter to become empty */
-	while ((dcr_read(up->dcr_host, UART_LSR) & UART_LSR_THRE) == 0)
-		cpu_relax();
-
-	/* restore interrupt state */
-	dcr_write(up->dcr_host, UART_IER, up->ier);
-
-	if (locked)
-		spin_unlock_irqrestore(&up->port.lock, flags);
-}
-
-static struct uart_driver nwpserial_reg;
-static struct console nwpserial_console = {
-	.name		= "ttySQ",
-	.write		= nwpserial_console_write,
-	.device		= uart_console_device,
-	.flags		= CON_PRINTBUFFER,
-	.index		= -1,
-	.data		= &nwpserial_reg,
-};
-#define NWPSERIAL_CONSOLE	(&nwpserial_console)
-#else
-#define NWPSERIAL_CONSOLE	NULL
-#endif /* CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE */
-
-/**************************************************************************/
-
-static int nwpserial_request_port(struct uart_port *port)
-{
-	return 0;
-}
-
-static void nwpserial_release_port(struct uart_port *port)
-{
-	/* N/A */
-}
-
-static void nwpserial_config_port(struct uart_port *port, int flags)
-{
-	port->type = PORT_NWPSERIAL;
-}
-
-static irqreturn_t nwpserial_interrupt(int irq, void *dev_id)
-{
-	struct nwpserial_port *up = dev_id;
-	struct tty_port *port = &up->port.state->port;
-	irqreturn_t ret;
-	unsigned int iir;
-	unsigned char ch;
-
-	spin_lock(&up->port.lock);
-
-	/* check if the uart was the interrupt source. */
-	iir = dcr_read(up->dcr_host, UART_IIR);
-	if (!iir) {
-		ret = IRQ_NONE;
-		goto out;
-	}
-
-	do {
-		up->port.icount.rx++;
-		ch = dcr_read(up->dcr_host, UART_RX);
-		if (up->port.ignore_status_mask != NWPSERIAL_STATUS_RXVALID)
-			tty_insert_flip_char(port, ch, TTY_NORMAL);
-	} while (dcr_read(up->dcr_host, UART_LSR) & UART_LSR_DR);
-
-	spin_unlock(&up->port.lock);
-	tty_flip_buffer_push(port);
-	spin_lock(&up->port.lock);
-
-	ret = IRQ_HANDLED;
-
-	/* clear interrupt */
-	dcr_write(up->dcr_host, UART_IIR, 1);
-out:
-	spin_unlock(&up->port.lock);
-	return ret;
-}
-
-static int nwpserial_startup(struct uart_port *port)
-{
-	struct nwpserial_port *up;
-	int err;
-
-	up = container_of(port, struct nwpserial_port, port);
-
-	/* disable flow control by default */
-	up->mcr = dcr_read(up->dcr_host, UART_MCR) & ~UART_MCR_AFE;
-	dcr_write(up->dcr_host, UART_MCR, up->mcr);
-
-	/* register interrupt handler */
-	err = request_irq(up->port.irq, nwpserial_interrupt,
-			IRQF_SHARED, "nwpserial", up);
-	if (err)
-		return err;
-
-	/* enable interrupts */
-	up->ier = UART_IER_RDI;
-	dcr_write(up->dcr_host, UART_IER, up->ier);
-
-	/* enable receiving */
-	up->port.ignore_status_mask &= ~NWPSERIAL_STATUS_RXVALID;
-
-	return 0;
-}
-
-static void nwpserial_shutdown(struct uart_port *port)
-{
-	struct nwpserial_port *up;
-	up = container_of(port, struct nwpserial_port, port);
-
-	/* disable receiving */
-	up->port.ignore_status_mask |= NWPSERIAL_STATUS_RXVALID;
-
-	/* disable interrupts from this port */
-	up->ier = 0;
-	dcr_write(up->dcr_host, UART_IER, up->ier);
-
-	/* free irq */
-	free_irq(up->port.irq, up);
-}
-
-static int nwpserial_verify_port(struct uart_port *port,
-			struct serial_struct *ser)
-{
-	return -EINVAL;
-}
-
-static const char *nwpserial_type(struct uart_port *port)
-{
-	return port->type == PORT_NWPSERIAL ? "nwpserial" : NULL;
-}
-
-static void nwpserial_set_termios(struct uart_port *port,
-			struct ktermios *termios, struct ktermios *old)
-{
-	struct nwpserial_port *up;
-	up = container_of(port, struct nwpserial_port, port);
-
-	up->port.read_status_mask = NWPSERIAL_STATUS_RXVALID
-				| NWPSERIAL_STATUS_TXFULL;
-
-	up->port.ignore_status_mask = 0;
-	/* ignore all characters if CREAD is not set */
-	if ((termios->c_cflag & CREAD) == 0)
-		up->port.ignore_status_mask |= NWPSERIAL_STATUS_RXVALID;
-
-	/* Copy back the old hardware settings */
-	if (old)
-		tty_termios_copy_hw(termios, old);
-}
-
-static void nwpserial_break_ctl(struct uart_port *port, int ctl)
-{
-	/* N/A */
-}
-
-static void nwpserial_stop_rx(struct uart_port *port)
-{
-	struct nwpserial_port *up;
-	up = container_of(port, struct nwpserial_port, port);
-	/* don't forward any more data (like !CREAD) */
-	up->port.ignore_status_mask = NWPSERIAL_STATUS_RXVALID;
-}
-
-static void nwpserial_putchar(struct nwpserial_port *up, unsigned char c)
-{
-	/* check if tx buffer is full */
-	wait_for_bits(up, UART_LSR_THRE);
-	dcr_write(up->dcr_host, UART_TX, c);
-	up->port.icount.tx++;
-}
-
-static void nwpserial_start_tx(struct uart_port *port)
-{
-	struct nwpserial_port *up;
-	struct circ_buf *xmit;
-	up = container_of(port, struct nwpserial_port, port);
-	xmit  = &up->port.state->xmit;
-
-	if (port->x_char) {
-		nwpserial_putchar(up, up->port.x_char);
-		port->x_char = 0;
-	}
-
-	while (!(uart_circ_empty(xmit) || uart_tx_stopped(&up->port))) {
-		nwpserial_putchar(up, xmit->buf[xmit->tail]);
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
-	}
-}
-
-static unsigned int nwpserial_get_mctrl(struct uart_port *port)
-{
-	return 0;
-}
-
-static void nwpserial_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
-	/* N/A */
-}
-
-static void nwpserial_stop_tx(struct uart_port *port)
-{
-	/* N/A */
-}
-
-static unsigned int nwpserial_tx_empty(struct uart_port *port)
-{
-	struct nwpserial_port *up;
-	unsigned long flags;
-	int ret;
-	up = container_of(port, struct nwpserial_port, port);
-
-	spin_lock_irqsave(&up->port.lock, flags);
-	ret = dcr_read(up->dcr_host, UART_LSR);
-	spin_unlock_irqrestore(&up->port.lock, flags);
-
-	return ret & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
-}
-
-static struct uart_ops nwpserial_pops = {
-	.tx_empty     = nwpserial_tx_empty,
-	.set_mctrl    = nwpserial_set_mctrl,
-	.get_mctrl    = nwpserial_get_mctrl,
-	.stop_tx      = nwpserial_stop_tx,
-	.start_tx     = nwpserial_start_tx,
-	.stop_rx      = nwpserial_stop_rx,
-	.break_ctl    = nwpserial_break_ctl,
-	.startup      = nwpserial_startup,
-	.shutdown     = nwpserial_shutdown,
-	.set_termios  = nwpserial_set_termios,
-	.type         = nwpserial_type,
-	.release_port = nwpserial_release_port,
-	.request_port = nwpserial_request_port,
-	.config_port  = nwpserial_config_port,
-	.verify_port  = nwpserial_verify_port,
-};
-
-static struct uart_driver nwpserial_reg = {
-	.owner       = THIS_MODULE,
-	.driver_name = "nwpserial",
-	.dev_name    = "ttySQ",
-	.major       = TTY_MAJOR,
-	.minor       = 68,
-	.nr          = NWPSERIAL_NR,
-	.cons        = NWPSERIAL_CONSOLE,
-};
-
-int nwpserial_register_port(struct uart_port *port)
-{
-	struct nwpserial_port *up = NULL;
-	int ret = -1;
-	int i;
-	static int first = 1;
-	int dcr_len;
-	int dcr_base;
-	struct device_node *dn;
-
-	mutex_lock(&nwpserial_mutex);
-
-	dn = port->dev->of_node;
-	if (dn == NULL)
-		goto out;
-
-	/* get dcr base. */
-	dcr_base = dcr_resource_start(dn, 0);
-
-	/* find matching entry */
-	for (i = 0; i < NWPSERIAL_NR; i++)
-		if (nwpserial_ports[i].port.iobase == dcr_base) {
-			up = &nwpserial_ports[i];
-			break;
-		}
-
-	/* we didn't find a mtching entry, search for a free port */
-	if (up == NULL)
-		for (i = 0; i < NWPSERIAL_NR; i++)
-			if (nwpserial_ports[i].port.type == PORT_UNKNOWN &&
-				nwpserial_ports[i].port.iobase == 0) {
-				up = &nwpserial_ports[i];
-				break;
-			}
-
-	if (up == NULL) {
-		ret = -EBUSY;
-		goto out;
-	}
-
-	if (first)
-		uart_register_driver(&nwpserial_reg);
-	first = 0;
-
-	up->port.membase      = port->membase;
-	up->port.irq          = port->irq;
-	up->port.uartclk      = port->uartclk;
-	up->port.fifosize     = port->fifosize;
-	up->port.regshift     = port->regshift;
-	up->port.iotype       = port->iotype;
-	up->port.flags        = port->flags;
-	up->port.mapbase      = port->mapbase;
-	up->port.private_data = port->private_data;
-
-	if (port->dev)
-		up->port.dev = port->dev;
-
-	if (up->port.iobase != dcr_base) {
-		up->port.ops          = &nwpserial_pops;
-		up->port.fifosize     = 16;
-
-		spin_lock_init(&up->port.lock);
-
-		up->port.iobase = dcr_base;
-		dcr_len = dcr_resource_len(dn, 0);
-
-		up->dcr_host = dcr_map(dn, dcr_base, dcr_len);
-		if (!DCR_MAP_OK(up->dcr_host)) {
-			printk(KERN_ERR "Cannot map DCR resources for NWPSERIAL");
-			goto out;
-		}
-	}
-
-	ret = uart_add_one_port(&nwpserial_reg, &up->port);
-	if (ret == 0)
-		ret = up->port.line;
-
-out:
-	mutex_unlock(&nwpserial_mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL(nwpserial_register_port);
-
-void nwpserial_unregister_port(int line)
-{
-	struct nwpserial_port *up = &nwpserial_ports[line];
-	mutex_lock(&nwpserial_mutex);
-	uart_remove_one_port(&nwpserial_reg, &up->port);
-
-	up->port.type = PORT_UNKNOWN;
-
-	mutex_unlock(&nwpserial_mutex);
-}
-EXPORT_SYMBOL(nwpserial_unregister_port);
-
-#ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE
-static int __init nwpserial_console_init(void)
-{
-	struct nwpserial_port *up = NULL;
-	struct device_node *dn;
-	const char *name;
-	int dcr_base;
-	int dcr_len;
-	int i;
-
-	/* search for a free port */
-	for (i = 0; i < NWPSERIAL_NR; i++)
-		if (nwpserial_ports[i].port.type == PORT_UNKNOWN) {
-			up = &nwpserial_ports[i];
-			break;
-		}
-
-	if (up == NULL)
-		return -1;
-
-	name = of_get_property(of_chosen, "linux,stdout-path", NULL);
-	if (name == NULL)
-		return -1;
-
-	dn = of_find_node_by_path(name);
-	if (!dn)
-		return -1;
-
-	spin_lock_init(&up->port.lock);
-	up->port.ops = &nwpserial_pops;
-	up->port.type = PORT_NWPSERIAL;
-	up->port.fifosize = 16;
-
-	dcr_base = dcr_resource_start(dn, 0);
-	dcr_len = dcr_resource_len(dn, 0);
-	up->port.iobase = dcr_base;
-
-	up->dcr_host = dcr_map(dn, dcr_base, dcr_len);
-	if (!DCR_MAP_OK(up->dcr_host)) {
-		printk("Cannot map DCR resources for SERIAL");
-		return -1;
-	}
-	register_console(&nwpserial_console);
-	return 0;
-}
-console_initcall(nwpserial_console_init);
-#endif /* CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE */
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 9d4c84f7485f..b645f9228ed7 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1165,7 +1165,7 @@ serial_omap_type(struct uart_port *port)
 
 #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
 
-static inline void wait_for_xmitr(struct uart_omap_port *up)
+static void wait_for_xmitr(struct uart_omap_port *up)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 9becba654892..41eab75ba2af 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -603,7 +603,7 @@ static struct uart_driver serial_pxa_reg;
 /*
  *	Wait for transmitter & holding register to empty
  */
-static inline void wait_for_xmitr(struct uart_pxa_port *up)
+static void wait_for_xmitr(struct uart_pxa_port *up)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index edb5305b9d4d..5815bcbc55b2 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -389,6 +389,13 @@ static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send)
 	const u8 line = sc16is7xx_line(port);
 	u8 addr = (SC16IS7XX_THR_REG << SC16IS7XX_REG_SHIFT) | line;
 
+	/*
+	 * Don't send zero-length data, at least on SPI it confuses the chip
+	 * delivering wrong TXLVL data.
+	 */
+	if (unlikely(!to_send))
+		return;
+
 	regcache_cache_bypass(s->regmap, true);
 	regmap_raw_write(s->regmap, addr, s->buf, to_send);
 	regcache_cache_bypass(s->regmap, false);
@@ -630,6 +637,12 @@ static void sc16is7xx_handle_tx(struct uart_port *port)
 	if (likely(to_send)) {
 		/* Limit to size of TX FIFO */
 		txlen = sc16is7xx_port_read(port, SC16IS7XX_TXLVL_REG);
+		if (txlen > SC16IS7XX_FIFO_SIZE) {
+			dev_err_ratelimited(port->dev,
+				"chip reports %d free bytes in TX fifo, but it only has %d",
+				txlen, SC16IS7XX_FIFO_SIZE);
+			txlen = 0;
+		}
 		to_send = (to_send > txlen) ? txlen : to_send;
 
 		/* Add data to send */
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index def5199ca004..b1f54ab1818c 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -110,7 +110,7 @@ static void uart_start(struct tty_struct *tty)
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
-static inline void
+static void
 uart_update_mctrl(struct uart_port *port, unsigned int set, unsigned int clear)
 {
 	unsigned long flags;
@@ -1818,8 +1818,8 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co)
  *	@options: ptr for <options> field; NULL if not present (out)
  *
  *	Decodes earlycon kernel command line parameters of the form
- *	   earlycon=<name>,io|mmio|mmio32|mmio32be|mmio32native,<addr>,<options>
- *	   console=<name>,io|mmio|mmio32|mmio32be|mmio32native,<addr>,<options>
+ *	   earlycon=<name>,io|mmio|mmio16|mmio32|mmio32be|mmio32native,<addr>,<options>
+ *	   console=<name>,io|mmio|mmio16|mmio32|mmio32be|mmio32native,<addr>,<options>
  *
  *	The optional form
  *	   earlycon=<name>,0x<addr>,<options>
@@ -1834,6 +1834,9 @@ int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
 	if (strncmp(p, "mmio,", 5) == 0) {
 		*iotype = UPIO_MEM;
 		p += 5;
+	} else if (strncmp(p, "mmio16,", 7) == 0) {
+		*iotype = UPIO_MEM16;
+		p += 7;
 	} else if (strncmp(p, "mmio32,", 7) == 0) {
 		*iotype = UPIO_MEM32;
 		p += 7;
@@ -2186,6 +2189,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
 			 "I/O 0x%lx offset 0x%x", port->iobase, port->hub6);
 		break;
 	case UPIO_MEM:
+	case UPIO_MEM16:
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
 	case UPIO_AU:
@@ -2831,6 +2835,7 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
 		return (port1->iobase == port2->iobase) &&
 		       (port1->hub6   == port2->hub6);
 	case UPIO_MEM:
+	case UPIO_MEM16:
 	case UPIO_MEM32:
 	case UPIO_MEM32BE:
 	case UPIO_AU:
diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c
index 3eb57eb532f1..226ad23b136c 100644
--- a/drivers/tty/serial/serial_mctrl_gpio.c
+++ b/drivers/tty/serial/serial_mctrl_gpio.c
@@ -193,6 +193,7 @@ struct mctrl_gpios *mctrl_gpio_init(struct uart_port *port, unsigned int idx)
 
 	return gpios;
 }
+EXPORT_SYMBOL_GPL(mctrl_gpio_init);
 
 void mctrl_gpio_free(struct device *dev, struct mctrl_gpios *gpios)
 {
@@ -247,3 +248,4 @@ void mctrl_gpio_disable_ms(struct mctrl_gpios *gpios)
 		disable_irq(gpios->irq[i]);
 	}
 }
+EXPORT_SYMBOL_GPL(mctrl_gpio_disable_ms);
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 51c7507b0444..4646a9f531ad 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2,6 +2,7 @@
  * SuperH on-chip serial module support.  (SCI with no FIFO / with FIFO)
  *
  *  Copyright (C) 2002 - 2011  Paul Mundt
+ *  Copyright (C) 2015 Glider bvba
  *  Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Jul 2007).
  *
  * based off of the old drivers/char/sh-sci.c by:
@@ -38,7 +39,6 @@
 #include <linux/major.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/notifier.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -76,6 +76,14 @@ enum {
 	((port)->irqs[SCIx_ERI_IRQ] &&	\
 	 ((port)->irqs[SCIx_RXI_IRQ] < 0))
 
+enum SCI_CLKS {
+	SCI_FCK,		/* Functional Clock */
+	SCI_SCK,		/* Optional External Clock */
+	SCI_BRG_INT,		/* Optional BRG Internal Clock Source */
+	SCI_SCIF_CLK,		/* Optional BRG External Clock Source */
+	SCI_NUM_CLKS
+};
+
 struct sci_port {
 	struct uart_port	port;
 
@@ -92,10 +100,9 @@ struct sci_port {
 	struct timer_list	break_timer;
 	int			break_flag;
 
-	/* Interface clock */
-	struct clk		*iclk;
-	/* Function clock */
-	struct clk		*fclk;
+	/* Clocks */
+	struct clk		*clks[SCI_NUM_CLKS];
+	unsigned long		clk_rates[SCI_NUM_CLKS];
 
 	int			irqs[SCIx_NR_IRQS];
 	char			*irqstr[SCIx_NR_IRQS];
@@ -116,8 +123,6 @@ struct sci_port {
 	struct timer_list		rx_timer;
 	unsigned int			rx_timeout;
 #endif
-
-	struct notifier_block		freq_transition;
 };
 
 #define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS
@@ -163,6 +168,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -185,6 +192,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -206,6 +215,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= { 0x30, 16 },
 		[SCPDR]		= { 0x34, 16 },
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -227,6 +238,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= { 0x30, 16 },
 		[SCPDR]		= { 0x34, 16 },
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -249,6 +262,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -270,6 +285,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -291,6 +308,32 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
+	},
+
+	/*
+	 * Common SCIF definitions for ports with a Baud Rate Generator for
+	 * External Clock (BRG).
+	 */
+	[SCIx_SH4_SCIF_BRG_REGTYPE] = {
+		[SCSMR]		= { 0x00, 16 },
+		[SCBRR]		= { 0x04,  8 },
+		[SCSCR]		= { 0x08, 16 },
+		[SCxTDR]	= { 0x0c,  8 },
+		[SCxSR]		= { 0x10, 16 },
+		[SCxRDR]	= { 0x14,  8 },
+		[SCFCR]		= { 0x18, 16 },
+		[SCFDR]		= { 0x1c, 16 },
+		[SCTFDR]	= sci_reg_invalid,
+		[SCRFDR]	= sci_reg_invalid,
+		[SCSPTR]	= { 0x20, 16 },
+		[SCLSR]		= { 0x24, 16 },
+		[HSSRR]		= sci_reg_invalid,
+		[SCPCR]		= sci_reg_invalid,
+		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= { 0x30, 16 },
+		[SCCKS]		= { 0x34, 16 },
 	},
 
 	/*
@@ -312,6 +355,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= { 0x40, 16 },
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= { 0x30, 16 },
+		[SCCKS]		= { 0x34, 16 },
 	},
 
 	/*
@@ -334,6 +379,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -356,6 +403,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 
 	/*
@@ -378,6 +427,8 @@ static const struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
 		[HSSRR]		= sci_reg_invalid,
 		[SCPCR]		= sci_reg_invalid,
 		[SCPDR]		= sci_reg_invalid,
+		[SCDL]		= sci_reg_invalid,
+		[SCCKS]		= sci_reg_invalid,
 	},
 };
 
@@ -452,18 +503,24 @@ static int sci_probe_regmap(struct plat_sci_port *cfg)
 
 static void sci_port_enable(struct sci_port *sci_port)
 {
+	unsigned int i;
+
 	if (!sci_port->port.dev)
 		return;
 
 	pm_runtime_get_sync(sci_port->port.dev);
 
-	clk_prepare_enable(sci_port->iclk);
-	sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
-	clk_prepare_enable(sci_port->fclk);
+	for (i = 0; i < SCI_NUM_CLKS; i++) {
+		clk_prepare_enable(sci_port->clks[i]);
+		sci_port->clk_rates[i] = clk_get_rate(sci_port->clks[i]);
+	}
+	sci_port->port.uartclk = sci_port->clk_rates[SCI_FCK];
 }
 
 static void sci_port_disable(struct sci_port *sci_port)
 {
+	unsigned int i;
+
 	if (!sci_port->port.dev)
 		return;
 
@@ -475,8 +532,8 @@ static void sci_port_disable(struct sci_port *sci_port)
 	del_timer_sync(&sci_port->break_timer);
 	sci_port->break_flag = 0;
 
-	clk_disable_unprepare(sci_port->fclk);
-	clk_disable_unprepare(sci_port->iclk);
+	for (i = SCI_NUM_CLKS; i-- > 0; )
+		clk_disable_unprepare(sci_port->clks[i]);
 
 	pm_runtime_put_sync(sci_port->port.dev);
 }
@@ -1606,29 +1663,6 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
 	return ret;
 }
 
-/*
- * Here we define a transition notifier so that we can update all of our
- * ports' baud rate when the peripheral clock changes.
- */
-static int sci_notifier(struct notifier_block *self,
-			unsigned long phase, void *p)
-{
-	struct sci_port *sci_port;
-	unsigned long flags;
-
-	sci_port = container_of(self, struct sci_port, freq_transition);
-
-	if (phase == CPUFREQ_POSTCHANGE) {
-		struct uart_port *port = &sci_port->port;
-
-		spin_lock_irqsave(&port->lock, flags);
-		port->uartclk = clk_get_rate(sci_port->iclk);
-		spin_unlock_irqrestore(&port->lock, flags);
-	}
-
-	return NOTIFY_OK;
-}
-
 static const struct sci_irq_desc {
 	const char	*desc;
 	irq_handler_t	handler;
@@ -1864,90 +1898,149 @@ static void sci_shutdown(struct uart_port *port)
 	sci_free_irq(s);
 }
 
-static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
-				   unsigned long freq)
+static int sci_sck_calc(struct sci_port *s, unsigned int bps,
+			unsigned int *srr)
 {
-	if (s->sampling_rate)
-		return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
+	unsigned long freq = s->clk_rates[SCI_SCK];
+	unsigned int min_sr, max_sr, sr;
+	int err, min_err = INT_MAX;
+
+	if (s->sampling_rate) {
+		/* SCI(F) has a fixed sampling rate */
+		min_sr = max_sr = s->sampling_rate / 2;
+	} else {
+		/* HSCIF has a variable 1/(8..32) sampling rate */
+		min_sr = 8;
+		max_sr = 32;
+	}
+
+	for (sr = max_sr; sr >= min_sr; sr--) {
+		err = DIV_ROUND_CLOSEST(freq, sr) - bps;
+		if (abs(err) >= abs(min_err))
+			continue;
 
-	/* Warn, but use a safe default */
-	WARN_ON(1);
+		min_err = err;
+		*srr = sr - 1;
 
-	return ((freq + 16 * bps) / (32 * bps) - 1);
+		if (!err)
+			break;
+	}
+
+	dev_dbg(s->port.dev, "SCK: %u%+d bps using SR %u\n", bps, min_err,
+		*srr + 1);
+	return min_err;
 }
 
-/* calculate frame length from SMR */
-static int sci_baud_calc_frame_len(unsigned int smr_val)
+static int sci_brg_calc(struct sci_port *s, unsigned int bps,
+			unsigned long freq, unsigned int *dlr,
+			unsigned int *srr)
 {
-	int len = 10;
+	unsigned int min_sr, max_sr, sr, dl;
+	int err, min_err = INT_MAX;
 
-	if (smr_val & SCSMR_CHR)
-		len--;
-	if (smr_val & SCSMR_PE)
-		len++;
-	if (smr_val & SCSMR_STOP)
-		len++;
+	if (s->sampling_rate) {
+		/* SCIF has a fixed sampling rate */
+		min_sr = max_sr = s->sampling_rate / 2;
+	} else {
+		/* HSCIF has a variable 1/(8..32) sampling rate */
+		min_sr = 8;
+		max_sr = 32;
+	}
 
-	return len;
-}
+	for (sr = max_sr; sr >= min_sr; sr--) {
+		dl = DIV_ROUND_CLOSEST(freq, sr * bps);
+		dl = clamp(dl, 1U, 65535U);
+
+		err = DIV_ROUND_CLOSEST(freq, sr * dl) - bps;
+		if (abs(err) >= abs(min_err))
+			continue;
 
+		min_err = err;
+		*dlr = dl;
+		*srr = sr - 1;
 
-/* calculate sample rate, BRR, and clock select for HSCIF */
-static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq,
-				int *brr, unsigned int *srr,
-				unsigned int *cks, int frame_len)
+		if (!err)
+			break;
+	}
+
+	dev_dbg(s->port.dev, "BRG: %u%+d bps using DL %u SR %u\n", bps,
+		min_err, *dlr, *srr + 1);
+	return min_err;
+}
+
+/* calculate sample rate, BRR, and clock select */
+static int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
+			  unsigned int *brr, unsigned int *srr,
+			  unsigned int *cks)
 {
-	int sr, c, br, err, recv_margin;
-	int min_err = 1000; /* 100% */
-	int recv_max_margin = 0;
+	unsigned int min_sr, max_sr, shift, sr, br, prediv, scrate, c;
+	unsigned long freq = s->clk_rates[SCI_FCK];
+	int err, min_err = INT_MAX;
 
-	/* Find the combination of sample rate and clock select with the
-	   smallest deviation from the desired baud rate. */
-	for (sr = 8; sr <= 32; sr++) {
+	if (s->sampling_rate) {
+		min_sr = max_sr = s->sampling_rate;
+		shift = 0;
+	} else {
+		/* HSCIF has a variable sample rate */
+		min_sr = 8;
+		max_sr = 32;
+		shift = 1;
+	}
+
+	/*
+	 * Find the combination of sample rate and clock select with the
+	 * smallest deviation from the desired baud rate.
+	 * Prefer high sample rates to maximise the receive margin.
+	 *
+	 * M: Receive margin (%)
+	 * N: Ratio of bit rate to clock (N = sampling rate)
+	 * D: Clock duty (D = 0 to 1.0)
+	 * L: Frame length (L = 9 to 12)
+	 * F: Absolute value of clock frequency deviation
+	 *
+	 *  M = |(0.5 - 1 / 2 * N) - ((L - 0.5) * F) -
+	 *      (|D - 0.5| / N * (1 + F))|
+	 *  NOTE: Usually, treat D for 0.5, F is 0 by this calculation.
+	 */
+	for (sr = max_sr; sr >= min_sr; sr--) {
 		for (c = 0; c <= 3; c++) {
 			/* integerized formulas from HSCIF documentation */
-			br = DIV_ROUND_CLOSEST(freq, (sr *
-					      (1 << (2 * c + 1)) * bps)) - 1;
-			br = clamp(br, 0, 255);
-			err = DIV_ROUND_CLOSEST(freq, ((br + 1) * bps * sr *
-					       (1 << (2 * c + 1)) / 1000)) -
-					       1000;
-			/* Calc recv margin
-			 * M: Receive margin (%)
-			 * N: Ratio of bit rate to clock (N = sampling rate)
-			 * D: Clock duty (D = 0 to 1.0)
-			 * L: Frame length (L = 9 to 12)
-			 * F: Absolute value of clock frequency deviation
+			prediv = sr * (1 << (2 * c + shift));
+
+			/*
+			 * We need to calculate:
 			 *
-			 *  M = |(0.5 - 1 / 2 * N) - ((L - 0.5) * F) -
-			 *      (|D - 0.5| / N * (1 + F))|
-			 *  NOTE: Usually, treat D for 0.5, F is 0 by this
-			 *        calculation.
+			 *     br = freq / (prediv * bps) clamped to [1..256]
+			 *     err = freq / (br * prediv) - bps
+			 *
+			 * Watch out for overflow when calculating the desired
+			 * sampling clock rate!
 			 */
-			recv_margin = abs((500 -
-					DIV_ROUND_CLOSEST(1000, sr << 1)) / 10);
-			if (abs(min_err) > abs(err)) {
-				min_err = err;
-				recv_max_margin = recv_margin;
-			} else if ((min_err == err) &&
-				   (recv_margin > recv_max_margin))
-				recv_max_margin = recv_margin;
-			else
+			if (bps > UINT_MAX / prediv)
+				break;
+
+			scrate = prediv * bps;
+			br = DIV_ROUND_CLOSEST(freq, scrate);
+			br = clamp(br, 1U, 256U);
+
+			err = DIV_ROUND_CLOSEST(freq, br * prediv) - bps;
+			if (abs(err) >= abs(min_err))
 				continue;
 
-			*brr = br;
+			min_err = err;
+			*brr = br - 1;
 			*srr = sr - 1;
 			*cks = c;
+
+			if (!err)
+				goto found;
 		}
 	}
 
-	if (min_err == 1000) {
-		WARN_ON(1);
-		/* use defaults */
-		*brr = 255;
-		*srr = 15;
-		*cks = 0;
-	}
+found:
+	dev_dbg(s->port.dev, "BRR: %u%+d bps using N %u SR %u cks %u\n", bps,
+		min_err, *brr, *srr + 1, *cks);
+	return min_err;
 }
 
 static void sci_reset(struct uart_port *port)
@@ -1969,11 +2062,14 @@ static void sci_reset(struct uart_port *port)
 static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 			    struct ktermios *old)
 {
+	unsigned int baud, smr_val = 0, scr_val = 0, i;
+	unsigned int brr = 255, cks = 0, srr = 15, dl = 0, sccks = 0;
+	unsigned int brr1 = 255, cks1 = 0, srr1 = 15, dl1 = 0;
 	struct sci_port *s = to_sci_port(port);
 	const struct plat_sci_reg *reg;
-	unsigned int baud, smr_val = 0, max_baud, cks = 0;
-	int t = -1;
-	unsigned int srr = 15;
+	int min_err = INT_MAX, err;
+	unsigned long max_freq = 0;
+	int best_clk = -1;
 
 	if ((termios->c_cflag & CSIZE) == CS7)
 		smr_val |= SCSMR_CHR;
@@ -1992,41 +2088,123 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 	 * that the previous boot loader has enabled required clocks and
 	 * setup the baud rate generator hardware for us already.
 	 */
-	max_baud = port->uartclk ? port->uartclk / 16 : 115200;
-
-	baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
-	if (likely(baud && port->uartclk)) {
-		if (s->cfg->type == PORT_HSCIF) {
-			int frame_len = sci_baud_calc_frame_len(smr_val);
-			sci_baud_calc_hscif(baud, port->uartclk, &t, &srr,
-					    &cks, frame_len);
-		} else {
-			t = sci_scbrr_calc(s, baud, port->uartclk);
-			for (cks = 0; t >= 256 && cks <= 3; cks++)
-				t >>= 2;
+	if (!port->uartclk) {
+		baud = uart_get_baud_rate(port, termios, old, 0, 115200);
+		goto done;
+	}
+
+	for (i = 0; i < SCI_NUM_CLKS; i++)
+		max_freq = max(max_freq, s->clk_rates[i]);
+
+	baud = uart_get_baud_rate(port, termios, old, 0,
+				  max_freq / max(s->sampling_rate, 8U));
+	if (!baud)
+		goto done;
+
+	/*
+	 * There can be multiple sources for the sampling clock.  Find the one
+	 * that gives us the smallest deviation from the desired baud rate.
+	 */
+
+	/* Optional Undivided External Clock */
+	if (s->clk_rates[SCI_SCK] && port->type != PORT_SCIFA &&
+	    port->type != PORT_SCIFB) {
+		err = sci_sck_calc(s, baud, &srr1);
+		if (abs(err) < abs(min_err)) {
+			best_clk = SCI_SCK;
+			scr_val = SCSCR_CKE1;
+			sccks = SCCKS_CKS;
+			min_err = err;
+			srr = srr1;
+			if (!err)
+				goto done;
 		}
 	}
 
+	/* Optional BRG Frequency Divided External Clock */
+	if (s->clk_rates[SCI_SCIF_CLK] && sci_getreg(port, SCDL)->size) {
+		err = sci_brg_calc(s, baud, s->clk_rates[SCI_SCIF_CLK], &dl1,
+				   &srr1);
+		if (abs(err) < abs(min_err)) {
+			best_clk = SCI_SCIF_CLK;
+			scr_val = SCSCR_CKE1;
+			sccks = 0;
+			min_err = err;
+			dl = dl1;
+			srr = srr1;
+			if (!err)
+				goto done;
+		}
+	}
+
+	/* Optional BRG Frequency Divided Internal Clock */
+	if (s->clk_rates[SCI_BRG_INT] && sci_getreg(port, SCDL)->size) {
+		err = sci_brg_calc(s, baud, s->clk_rates[SCI_BRG_INT], &dl1,
+				   &srr1);
+		if (abs(err) < abs(min_err)) {
+			best_clk = SCI_BRG_INT;
+			scr_val = SCSCR_CKE1;
+			sccks = SCCKS_XIN;
+			min_err = err;
+			dl = dl1;
+			srr = srr1;
+			if (!min_err)
+				goto done;
+		}
+	}
+
+	/* Divided Functional Clock using standard Bit Rate Register */
+	err = sci_scbrr_calc(s, baud, &brr1, &srr1, &cks1);
+	if (abs(err) < abs(min_err)) {
+		best_clk = SCI_FCK;
+		scr_val = 0;
+		min_err = err;
+		brr = brr1;
+		srr = srr1;
+		cks = cks1;
+	}
+
+done:
+	if (best_clk >= 0)
+		dev_dbg(port->dev, "Using clk %pC for %u%+d bps\n",
+			s->clks[best_clk], baud, min_err);
+
 	sci_port_enable(s);
 
-	sci_reset(port);
+	/*
+	 * Program the optional External Baud Rate Generator (BRG) first.
+	 * It controls the mux to select (H)SCK or frequency divided clock.
+	 */
+	if (best_clk >= 0 && sci_getreg(port, SCCKS)->size) {
+		serial_port_out(port, SCDL, dl);
+		serial_port_out(port, SCCKS, sccks);
+	}
 
-	smr_val |= serial_port_in(port, SCSMR) & SCSMR_CKS;
+	sci_reset(port);
 
 	uart_update_timeout(port, termios->c_cflag, baud);
 
-	dev_dbg(port->dev, "%s: SMR %x, cks %x, t %x, SCSCR %x\n",
-		__func__, smr_val, cks, t, s->cfg->scscr);
-
-	if (t >= 0) {
-		serial_port_out(port, SCSMR, (smr_val & ~SCSMR_CKS) | cks);
-		serial_port_out(port, SCBRR, t);
-		reg = sci_getreg(port, HSSRR);
-		if (reg->size)
+	if (best_clk >= 0) {
+		smr_val |= cks;
+		dev_dbg(port->dev,
+			 "SCR 0x%x SMR 0x%x BRR %u CKS 0x%x DL %u SRR %u\n",
+			 scr_val, smr_val, brr, sccks, dl, srr);
+		serial_port_out(port, SCSCR, scr_val);
+		serial_port_out(port, SCSMR, smr_val);
+		serial_port_out(port, SCBRR, brr);
+		if (sci_getreg(port, HSSRR)->size)
 			serial_port_out(port, HSSRR, srr | HSCIF_SRE);
-		udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
-	} else
+
+		/* Wait one bit interval */
+		udelay((1000000 + (baud - 1)) / baud);
+	} else {
+		/* Don't touch the bit rate configuration */
+		scr_val = s->cfg->scscr & (SCSCR_CKE1 | SCSCR_CKE0);
+		smr_val |= serial_port_in(port, SCSMR) & SCSMR_CKS;
+		dev_dbg(port->dev, "SCR 0x%x SMR 0x%x\n", scr_val, smr_val);
+		serial_port_out(port, SCSCR, scr_val);
 		serial_port_out(port, SCSMR, smr_val);
+	}
 
 	sci_init_pins(port, termios->c_cflag);
 
@@ -2051,7 +2229,9 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 		serial_port_out(port, SCFCR, ctrl);
 	}
 
-	serial_port_out(port, SCSCR, s->cfg->scscr);
+	scr_val |= s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0);
+	dev_dbg(port->dev, "SCSCR 0x%x\n", scr_val);
+	serial_port_out(port, SCSCR, scr_val);
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
 	/*
@@ -2241,6 +2421,63 @@ static struct uart_ops sci_uart_ops = {
 #endif
 };
 
+static int sci_init_clocks(struct sci_port *sci_port, struct device *dev)
+{
+	const char *clk_names[] = {
+		[SCI_FCK] = "fck",
+		[SCI_SCK] = "sck",
+		[SCI_BRG_INT] = "brg_int",
+		[SCI_SCIF_CLK] = "scif_clk",
+	};
+	struct clk *clk;
+	unsigned int i;
+
+	if (sci_port->cfg->type == PORT_HSCIF)
+		clk_names[SCI_SCK] = "hsck";
+
+	for (i = 0; i < SCI_NUM_CLKS; i++) {
+		clk = devm_clk_get(dev, clk_names[i]);
+		if (PTR_ERR(clk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+
+		if (IS_ERR(clk) && i == SCI_FCK) {
+			/*
+			 * "fck" used to be called "sci_ick", and we need to
+			 * maintain DT backward compatibility.
+			 */
+			clk = devm_clk_get(dev, "sci_ick");
+			if (PTR_ERR(clk) == -EPROBE_DEFER)
+				return -EPROBE_DEFER;
+
+			if (!IS_ERR(clk))
+				goto found;
+
+			/*
+			 * Not all SH platforms declare a clock lookup entry
+			 * for SCI devices, in which case we need to get the
+			 * global "peripheral_clk" clock.
+			 */
+			clk = devm_clk_get(dev, "peripheral_clk");
+			if (!IS_ERR(clk))
+				goto found;
+
+			dev_err(dev, "failed to get %s (%ld)\n", clk_names[i],
+				PTR_ERR(clk));
+			return PTR_ERR(clk);
+		}
+
+found:
+		if (IS_ERR(clk))
+			dev_dbg(dev, "failed to get %s (%ld)\n", clk_names[i],
+				PTR_ERR(clk));
+		else
+			dev_dbg(dev, "clk %s is %pC rate %pCr\n", clk_names[i],
+				clk, clk);
+		sci_port->clks[i] = IS_ERR(clk) ? NULL : clk;
+	}
+	return 0;
+}
+
 static int sci_init_single(struct platform_device *dev,
 			   struct sci_port *sci_port, unsigned int index,
 			   struct plat_sci_port *p, bool early)
@@ -2333,22 +2570,9 @@ static int sci_init_single(struct platform_device *dev,
 		sci_port->sampling_rate = p->sampling_rate;
 
 	if (!early) {
-		sci_port->iclk = clk_get(&dev->dev, "sci_ick");
-		if (IS_ERR(sci_port->iclk)) {
-			sci_port->iclk = clk_get(&dev->dev, "peripheral_clk");
-			if (IS_ERR(sci_port->iclk)) {
-				dev_err(&dev->dev, "can't get iclk\n");
-				return PTR_ERR(sci_port->iclk);
-			}
-		}
-
-		/*
-		 * The function clock is optional, ignore it if we can't
-		 * find it.
-		 */
-		sci_port->fclk = clk_get(&dev->dev, "sci_fck");
-		if (IS_ERR(sci_port->fclk))
-			sci_port->fclk = NULL;
+		ret = sci_init_clocks(sci_port, &dev->dev);
+		if (ret < 0)
+			return ret;
 
 		port->dev = &dev->dev;
 
@@ -2405,9 +2629,6 @@ static int sci_init_single(struct platform_device *dev,
 
 static void sci_cleanup_single(struct sci_port *port)
 {
-	clk_put(port->iclk);
-	clk_put(port->fclk);
-
 	pm_runtime_disable(port->port.dev);
 }
 
@@ -2426,7 +2647,7 @@ static void serial_console_write(struct console *co, const char *s,
 {
 	struct sci_port *sci_port = &sci_ports[co->index];
 	struct uart_port *port = &sci_port->port;
-	unsigned short bits, ctrl;
+	unsigned short bits, ctrl, ctrl_temp;
 	unsigned long flags;
 	int locked = 1;
 
@@ -2438,9 +2659,11 @@ static void serial_console_write(struct console *co, const char *s,
 	else
 		spin_lock(&port->lock);
 
-	/* first save the SCSCR then disable the interrupts */
+	/* first save SCSCR then disable interrupts, keep clock source */
 	ctrl = serial_port_in(port, SCSCR);
-	serial_port_out(port, SCSCR, sci_port->cfg->scscr);
+	ctrl_temp = (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
+		    (ctrl & (SCSCR_CKE1 | SCSCR_CKE0));
+	serial_port_out(port, SCSCR, ctrl_temp);
 
 	uart_console_write(port, s, count, serial_console_putchar);
 
@@ -2559,9 +2782,6 @@ static int sci_remove(struct platform_device *dev)
 {
 	struct sci_port *port = platform_get_drvdata(dev);
 
-	cpufreq_unregister_notifier(&port->freq_transition,
-				    CPUFREQ_TRANSITION_NOTIFIER);
-
 	uart_remove_one_port(&sci_uart_driver, &port->port);
 
 	sci_cleanup_single(port);
@@ -2569,42 +2789,44 @@ static int sci_remove(struct platform_device *dev)
 	return 0;
 }
 
-struct sci_port_info {
-	unsigned int type;
-	unsigned int regtype;
-};
+
+#define SCI_OF_DATA(type, regtype)	(void *)((type) << 16 | (regtype))
+#define SCI_OF_TYPE(data)		((unsigned long)(data) >> 16)
+#define SCI_OF_REGTYPE(data)		((unsigned long)(data) & 0xffff)
 
 static const struct of_device_id of_sci_match[] = {
+	/* SoC-specific types */
+	{
+		.compatible = "renesas,scif-r7s72100",
+		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH2_SCIF_FIFODATA_REGTYPE),
+	},
+	/* Family-specific types */
+	{
+		.compatible = "renesas,rcar-gen1-scif",
+		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+	}, {
+		.compatible = "renesas,rcar-gen2-scif",
+		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+	}, {
+		.compatible = "renesas,rcar-gen3-scif",
+		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+	},
+	/* Generic types */
 	{
 		.compatible = "renesas,scif",
-		.data = &(const struct sci_port_info) {
-			.type = PORT_SCIF,
-			.regtype = SCIx_SH4_SCIF_REGTYPE,
-		},
+		.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_REGTYPE),
 	}, {
 		.compatible = "renesas,scifa",
-		.data = &(const struct sci_port_info) {
-			.type = PORT_SCIFA,
-			.regtype = SCIx_SCIFA_REGTYPE,
-		},
+		.data = SCI_OF_DATA(PORT_SCIFA, SCIx_SCIFA_REGTYPE),
 	}, {
 		.compatible = "renesas,scifb",
-		.data = &(const struct sci_port_info) {
-			.type = PORT_SCIFB,
-			.regtype = SCIx_SCIFB_REGTYPE,
-		},
+		.data = SCI_OF_DATA(PORT_SCIFB, SCIx_SCIFB_REGTYPE),
 	}, {
 		.compatible = "renesas,hscif",
-		.data = &(const struct sci_port_info) {
-			.type = PORT_HSCIF,
-			.regtype = SCIx_HSCIF_REGTYPE,
-		},
+		.data = SCI_OF_DATA(PORT_HSCIF, SCIx_HSCIF_REGTYPE),
 	}, {
 		.compatible = "renesas,sci",
-		.data = &(const struct sci_port_info) {
-			.type = PORT_SCI,
-			.regtype = SCIx_SCI_REGTYPE,
-		},
+		.data = SCI_OF_DATA(PORT_SCI, SCIx_SCI_REGTYPE),
 	}, {
 		/* Terminator */
 	},
@@ -2616,24 +2838,21 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 {
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *match;
-	const struct sci_port_info *info;
 	struct plat_sci_port *p;
 	int id;
 
 	if (!IS_ENABLED(CONFIG_OF) || !np)
 		return NULL;
 
-	match = of_match_node(of_sci_match, pdev->dev.of_node);
+	match = of_match_node(of_sci_match, np);
 	if (!match)
 		return NULL;
 
-	info = match->data;
-
 	p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL);
 	if (!p)
 		return NULL;
 
-	/* Get the line number for the aliases node. */
+	/* Get the line number from the aliases node. */
 	id = of_alias_get_id(np, "serial");
 	if (id < 0) {
 		dev_err(&pdev->dev, "failed to get alias id (%d)\n", id);
@@ -2643,8 +2862,8 @@ sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
 	*dev_id = id;
 
 	p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
-	p->type = info->type;
-	p->regtype = info->regtype;
+	p->type = SCI_OF_TYPE(match->data);
+	p->regtype = SCI_OF_REGTYPE(match->data);
 	p->scscr = SCSCR_RE | SCSCR_TE;
 
 	return p;
@@ -2714,16 +2933,6 @@ static int sci_probe(struct platform_device *dev)
 	if (ret)
 		return ret;
 
-	sp->freq_transition.notifier_call = sci_notifier;
-
-	ret = cpufreq_register_notifier(&sp->freq_transition,
-					CPUFREQ_TRANSITION_NOTIFIER);
-	if (unlikely(ret < 0)) {
-		uart_remove_one_port(&sci_uart_driver, &sp->port);
-		sci_cleanup_single(sp);
-		return ret;
-	}
-
 #ifdef CONFIG_SH_STANDARD_BIOS
 	sh_bios_gdb_detach();
 #endif
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index bf69bbdcc1f9..fb1760250421 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -27,6 +27,8 @@ enum {
 	HSSRR,				/* Sampling Rate Register */
 	SCPCR,				/* Serial Port Control Register */
 	SCPDR,				/* Serial Port Data Register */
+	SCDL,				/* BRG Frequency Division Register */
+	SCCKS,				/* BRG Clock Select Register */
 
 	SCIx_NR_REGS,
 };
@@ -109,6 +111,14 @@ enum {
 #define SCPDR_RTSD	BIT(4)	/* Serial Port RTS Output Pin Data */
 #define SCPDR_CTSD	BIT(3)	/* Serial Port CTS Input Pin Data */
 
+/*
+ * BRG Clock Select Register (Some SCIF and HSCIF)
+ * The Baud Rate Generator for external clock can provide a clock source for
+ * the sampling clock. It outputs either its frequency divided clock, or the
+ * (undivided) (H)SCK external clock.
+ */
+#define SCCKS_CKS	BIT(15)	/* Select (H)SCK (1) or divided SC_CLK (0) */
+#define SCCKS_XIN	BIT(14)	/* SC_CLK uses bus clock (1) or SCIF_CLK (0) */
 
 #define SCxSR_TEND(port)	(((port)->type == PORT_SCI) ? SCI_TEND   : SCIF_TEND)
 #define SCxSR_RDxF(port)	(((port)->type == PORT_SCI) ? SCI_RDRF   : SCIF_RDF)
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index 9dbae01d41ce..ef26c4a60be4 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -517,7 +517,7 @@ static struct uart_ops serial_sprd_ops = {
 };
 
 #ifdef CONFIG_SERIAL_SPRD_CONSOLE
-static inline void wait_for_xmitr(struct uart_port *port)
+static void wait_for_xmitr(struct uart_port *port)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index e124d2e88996..9ad98eaa35bf 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -1262,7 +1262,7 @@ static int sunsu_kbd_ms_init(struct uart_sunsu_port *up)
 /*
  *	Wait for transmitter & holding register to empty
  */
-static __inline__ void wait_for_xmitr(struct uart_sunsu_port *up)
+static void wait_for_xmitr(struct uart_sunsu_port *up)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 73190f5d2832..1a7dc3c590b1 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -31,7 +31,7 @@
 #include <linux/dma-mapping.h>
 
 #include <linux/fs_uart_pd.h>
-#include <asm/ucc_slow.h>
+#include <soc/fsl/qe/ucc_slow.h>
 
 #include <linux/firmware.h>
 #include <asm/reg.h>
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 4079ec56f5f9..b384060e3b1f 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -485,7 +485,7 @@ static struct uart_driver vt8500_uart_driver;
 
 #ifdef CONFIG_SERIAL_VT8500_CONSOLE
 
-static inline void wait_for_xmitr(struct uart_port *port)
+static void wait_for_xmitr(struct uart_port *port)
 {
 	unsigned int status, tmout = 10000;
 
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index 6fc39fbfc275..5505ea842179 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -89,7 +89,7 @@
  * module identification
  */
 static char *driver_name     = "SyncLink GT";
-static char *tty_driver_name = "synclink_gt";
+static char *slgt_driver_name = "synclink_gt";
 static char *tty_dev_prefix  = "ttySLG";
 MODULE_LICENSE("GPL");
 #define MGSL_MAGIC 0x5401
@@ -3799,7 +3799,7 @@ static int __init slgt_init(void)
 
 	/* Initialize the tty_driver structure */
 
-	serial_driver->driver_name = tty_driver_name;
+	serial_driver->driver_name = slgt_driver_name;
 	serial_driver->name = tty_dev_prefix;
 	serial_driver->major = ttymajor;
 	serial_driver->minor_start = 64;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index bcc8e1e8bb72..892c92354745 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -256,19 +256,24 @@ const char *tty_name(const struct tty_struct *tty)
 
 EXPORT_SYMBOL(tty_name);
 
-int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
+const char *tty_driver_name(const struct tty_struct *tty)
+{
+	if (!tty || !tty->driver)
+		return "";
+	return tty->driver->name;
+}
+
+static int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
 			      const char *routine)
 {
 #ifdef TTY_PARANOIA_CHECK
 	if (!tty) {
-		printk(KERN_WARNING
-			"null TTY for (%d:%d) in %s\n",
+		pr_warn("(%d:%d): %s: NULL tty\n",
 			imajor(inode), iminor(inode), routine);
 		return 1;
 	}
 	if (tty->magic != TTY_MAGIC) {
-		printk(KERN_WARNING
-			"bad magic number for tty struct (%d:%d) in %s\n",
+		pr_warn("(%d:%d): %s: bad magic number\n",
 			imajor(inode), iminor(inode), routine);
 		return 1;
 	}
@@ -293,9 +298,8 @@ static int check_tty_count(struct tty_struct *tty, const char *routine)
 	    tty->link && tty->link->count)
 		count++;
 	if (tty->count != count) {
-		printk(KERN_WARNING "Warning: dev (%s) tty->count(%d) "
-				    "!= #fd's(%d) in %s\n",
-		       tty->name, tty->count, count, routine);
+		tty_warn(tty, "%s: tty->count(%d) != #fd's(%d)\n",
+			 routine, tty->count, count);
 		return count;
 	}
 #endif
@@ -420,10 +424,8 @@ int __tty_check_change(struct tty_struct *tty, int sig)
 	}
 	rcu_read_unlock();
 
-	if (!tty_pgrp) {
-		pr_warn("%s: tty_check_change: sig=%d, tty->pgrp == NULL!\n",
-			tty_name(tty), sig);
-	}
+	if (!tty_pgrp)
+		tty_warn(tty, "sig=%d, tty->pgrp == NULL!\n", sig);
 
 	return ret;
 }
@@ -781,7 +783,7 @@ static void do_tty_hangup(struct work_struct *work)
 
 void tty_hangup(struct tty_struct *tty)
 {
-	tty_debug_hangup(tty, "\n");
+	tty_debug_hangup(tty, "hangup\n");
 	schedule_work(&tty->hangup_work);
 }
 
@@ -798,7 +800,7 @@ EXPORT_SYMBOL(tty_hangup);
 
 void tty_vhangup(struct tty_struct *tty)
 {
-	tty_debug_hangup(tty, "\n");
+	tty_debug_hangup(tty, "vhangup\n");
 	__tty_hangup(tty, 0);
 }
 
@@ -835,7 +837,7 @@ void tty_vhangup_self(void)
 
 static void tty_vhangup_session(struct tty_struct *tty)
 {
-	tty_debug_hangup(tty, "\n");
+	tty_debug_hangup(tty, "session hangup\n");
 	__tty_hangup(tty, 1);
 }
 
@@ -1239,8 +1241,7 @@ static ssize_t tty_write(struct file *file, const char __user *buf,
 			return -EIO;
 	/* Short term debug to catch buggy drivers */
 	if (tty->ops->write_room == NULL)
-		printk(KERN_ERR "tty driver %s lacks a write_room method.\n",
-			tty->driver->name);
+		tty_err(tty, "missing write_room method\n");
 	ld = tty_ldisc_ref_wait(tty);
 	if (!ld->ops->write)
 		ret = -EIO;
@@ -1561,8 +1562,8 @@ err_module_put:
 	/* call the tty release_tty routine to clean out this slot */
 err_release_tty:
 	tty_unlock(tty);
-	printk_ratelimited(KERN_INFO "tty_init_dev: ldisc open failed, "
-				 "clearing slot %d\n", idx);
+	tty_info_ratelimited(tty, "ldisc open failed (%d), clearing slot %d\n",
+			     retval, idx);
 	release_tty(tty, idx);
 	return ERR_PTR(retval);
 }
@@ -1580,10 +1581,8 @@ void tty_free_termios(struct tty_struct *tty)
 	tp = tty->driver->termios[idx];
 	if (tp == NULL) {
 		tp = kmalloc(sizeof(struct ktermios), GFP_KERNEL);
-		if (tp == NULL) {
-			pr_warn("tty: no memory to save termios state.\n");
+		if (tp == NULL)
 			return;
-		}
 		tty->driver->termios[idx] = tp;
 	}
 	*tp = tty->termios;
@@ -1788,7 +1787,7 @@ int tty_release(struct inode *inode, struct file *filp)
 		return 0;
 	}
 
-	tty_debug_hangup(tty, "(tty count=%d)...\n", tty->count);
+	tty_debug_hangup(tty, "releasing (count=%d)\n", tty->count);
 
 	if (tty->ops->close)
 		tty->ops->close(tty, filp);
@@ -1837,8 +1836,7 @@ int tty_release(struct inode *inode, struct file *filp)
 
 		if (once) {
 			once = 0;
-			printk(KERN_WARNING "%s: %s: read/write wait queue active!\n",
-			       __func__, tty_name(tty));
+			tty_warn(tty, "read/write wait queue active!\n");
 		}
 		schedule_timeout_killable(timeout);
 		if (timeout < 120 * HZ)
@@ -1849,14 +1847,12 @@ int tty_release(struct inode *inode, struct file *filp)
 
 	if (o_tty) {
 		if (--o_tty->count < 0) {
-			printk(KERN_WARNING "%s: bad pty slave count (%d) for %s\n",
-				__func__, o_tty->count, tty_name(o_tty));
+			tty_warn(tty, "bad slave count (%d)\n", o_tty->count);
 			o_tty->count = 0;
 		}
 	}
 	if (--tty->count < 0) {
-		printk(KERN_WARNING "%s: bad tty->count (%d) for %s\n",
-				__func__, tty->count, tty_name(tty));
+		tty_warn(tty, "bad tty->count (%d)\n", tty->count);
 		tty->count = 0;
 	}
 
@@ -1907,7 +1903,7 @@ int tty_release(struct inode *inode, struct file *filp)
 	/* Wait for pending work before tty destruction commmences */
 	tty_flush_works(tty);
 
-	tty_debug_hangup(tty, "freeing structure...\n");
+	tty_debug_hangup(tty, "freeing structure\n");
 	/*
 	 * The release_tty function takes care of the details of clearing
 	 * the slots and preserving the termios structure. The tty_unlock_pair
@@ -2097,7 +2093,7 @@ retry_open:
 	    tty->driver->subtype == PTY_TYPE_MASTER)
 		noctty = 1;
 
-	tty_debug_hangup(tty, "(tty count=%d)\n", tty->count);
+	tty_debug_hangup(tty, "opening (count=%d)\n", tty->count);
 
 	if (tty->ops->open)
 		retval = tty->ops->open(tty, filp);
@@ -2106,7 +2102,7 @@ retry_open:
 	filp->f_flags = saved_flags;
 
 	if (retval) {
-		tty_debug_hangup(tty, "error %d, releasing...\n", retval);
+		tty_debug_hangup(tty, "open error %d, releasing\n", retval);
 
 		tty_unlock(tty); /* need to call tty_release without BTM */
 		tty_release(inode, filp);
@@ -2870,7 +2866,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		no_tty();
 		return 0;
 	case TIOCSCTTY:
-		return tiocsctty(tty, file, arg);
+		return tiocsctty(real_tty, file, arg);
 	case TIOCGPGRP:
 		return tiocgpgrp(tty, real_tty, p);
 	case TIOCSPGRP:
@@ -3028,28 +3024,24 @@ void __do_SAK(struct tty_struct *tty)
 	read_lock(&tasklist_lock);
 	/* Kill the entire session */
 	do_each_pid_task(session, PIDTYPE_SID, p) {
-		printk(KERN_NOTICE "SAK: killed process %d"
-			" (%s): task_session(p)==tty->session\n",
-			task_pid_nr(p), p->comm);
+		tty_notice(tty, "SAK: killed process %d (%s): by session\n",
+			   task_pid_nr(p), p->comm);
 		send_sig(SIGKILL, p, 1);
 	} while_each_pid_task(session, PIDTYPE_SID, p);
-	/* Now kill any processes that happen to have the
-	 * tty open.
-	 */
+
+	/* Now kill any processes that happen to have the tty open */
 	do_each_thread(g, p) {
 		if (p->signal->tty == tty) {
-			printk(KERN_NOTICE "SAK: killed process %d"
-			    " (%s): task_session(p)==tty->session\n",
-			    task_pid_nr(p), p->comm);
+			tty_notice(tty, "SAK: killed process %d (%s): by controlling tty\n",
+				   task_pid_nr(p), p->comm);
 			send_sig(SIGKILL, p, 1);
 			continue;
 		}
 		task_lock(p);
 		i = iterate_fd(p->files, 0, this_tty, tty);
 		if (i != 0) {
-			printk(KERN_NOTICE "SAK: killed process %d"
-			    " (%s): fd#%d opened to the tty\n",
-				    task_pid_nr(p), p->comm, i - 1);
+			tty_notice(tty, "SAK: killed process %d (%s): by fd#%d\n",
+				   task_pid_nr(p), p->comm, i - 1);
 			force_sig(SIGKILL, p);
 		}
 		task_unlock(p);
@@ -3219,7 +3211,7 @@ EXPORT_SYMBOL(tty_register_device);
 
 static void tty_device_create_release(struct device *dev)
 {
-	pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
+	dev_dbg(dev, "releasing...\n");
 	kfree(dev);
 }
 
@@ -3255,8 +3247,8 @@ struct device *tty_register_device_attr(struct tty_driver *driver,
 	bool cdev = false;
 
 	if (index >= driver->num) {
-		printk(KERN_ERR "Attempt to register invalid tty line number "
-		       " (%d).\n", index);
+		pr_err("%s: Attempt to register invalid tty line number (%d)\n",
+		       driver->name, index);
 		return ERR_PTR(-EINVAL);
 	}
 
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 1445dd39aa62..0ea351388724 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -216,7 +216,7 @@ int tty_unthrottle_safe(struct tty_struct *tty)
 
 void tty_wait_until_sent(struct tty_struct *tty, long timeout)
 {
-	tty_debug_wait_until_sent(tty, "\n");
+	tty_debug_wait_until_sent(tty, "wait until sent, timeout=%ld\n", timeout);
 
 	if (!timeout)
 		timeout = MAX_SCHEDULE_TIMEOUT;
@@ -239,19 +239,14 @@ EXPORT_SYMBOL(tty_wait_until_sent);
  *		Termios Helper Methods
  */
 
-static void unset_locked_termios(struct ktermios *termios,
-				 struct ktermios *old,
-				 struct ktermios *locked)
+static void unset_locked_termios(struct tty_struct *tty, struct ktermios *old)
 {
+	struct ktermios *termios = &tty->termios;
+	struct ktermios *locked  = &tty->termios_locked;
 	int	i;
 
 #define NOSET_MASK(x, y, z) (x = ((x) & ~(z)) | ((y) & (z)))
 
-	if (!locked) {
-		printk(KERN_WARNING "Warning?!? termios_locked is NULL.\n");
-		return;
-	}
-
 	NOSET_MASK(termios->c_iflag, old->c_iflag, locked->c_iflag);
 	NOSET_MASK(termios->c_oflag, old->c_oflag, locked->c_oflag);
 	NOSET_MASK(termios->c_cflag, old->c_cflag, locked->c_cflag);
@@ -463,10 +458,8 @@ void tty_termios_encode_baud_rate(struct ktermios *termios,
 	if (ifound == -1 && (ibaud != obaud || ibinput))
 		termios->c_cflag |= (BOTHER << IBSHIFT);
 #else
-	if (ifound == -1 || ofound == -1) {
-		printk_once(KERN_WARNING "tty: Unable to return correct "
-			  "speed data as your architecture needs updating.\n");
-	}
+	if (ifound == -1 || ofound == -1)
+		pr_warn_once("tty: Unable to return correct speed data as your architecture needs updating.\n");
 #endif
 }
 EXPORT_SYMBOL_GPL(tty_termios_encode_baud_rate);
@@ -556,7 +549,7 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
 	down_write(&tty->termios_rwsem);
 	old_termios = tty->termios;
 	tty->termios = *new_termios;
-	unset_locked_termios(&tty->termios, &old_termios, &tty->termios_locked);
+	unset_locked_termios(tty, &old_termios);
 
 	if (tty->ops->set_termios)
 		tty->ops->set_termios(tty, &old_termios);
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 629e3c865072..a054d03c22e7 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -185,7 +185,7 @@ static struct tty_ldisc *tty_ldisc_get(struct tty_struct *tty, int disc)
  *
  *	Complement of tty_ldisc_get().
  */
-static inline void tty_ldisc_put(struct tty_ldisc *ld)
+static void tty_ldisc_put(struct tty_ldisc *ld)
 {
 	if (WARN_ON_ONCE(!ld))
 		return;
@@ -417,6 +417,10 @@ EXPORT_SYMBOL_GPL(tty_ldisc_flush);
  *	they are not on hot paths so a little discipline won't do
  *	any harm.
  *
+ *	The line discipline-related tty_struct fields are reset to
+ *	prevent the ldisc driver from re-using stale information for
+ *	the new ldisc instance.
+ *
  *	Locking: takes termios_rwsem
  */
 
@@ -425,6 +429,9 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num)
 	down_write(&tty->termios_rwsem);
 	tty->termios.c_line = num;
 	up_write(&tty->termios_rwsem);
+
+	tty->disc_data = NULL;
+	tty->receive_room = 0;
 }
 
 /**
@@ -529,34 +536,21 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 
 	tty_lock(tty);
 	retval = tty_ldisc_lock(tty, 5 * HZ);
-	if (retval) {
-		tty_ldisc_put(new_ldisc);
-		tty_unlock(tty);
-		return retval;
-	}
+	if (retval)
+		goto err;
 
-	/*
-	 *	Check the no-op case
-	 */
+	/* Check the no-op case */
+	if (tty->ldisc->ops->num == ldisc)
+		goto out;
 
-	if (tty->ldisc->ops->num == ldisc) {
-		tty_ldisc_unlock(tty);
-		tty_ldisc_put(new_ldisc);
-		tty_unlock(tty);
-		return 0;
+	if (test_bit(TTY_HUPPED, &tty->flags)) {
+		/* We were raced by hangup */
+		retval = -EIO;
+		goto out;
 	}
 
 	old_ldisc = tty->ldisc;
 
-	if (test_bit(TTY_HUPPED, &tty->flags)) {
-		/* We were raced by the hangup method. It will have stomped
-		   the ldisc data and closed the ldisc down */
-		tty_ldisc_unlock(tty);
-		tty_ldisc_put(new_ldisc);
-		tty_unlock(tty);
-		return -EIO;
-	}
-
 	/* Shutdown the old discipline. */
 	tty_ldisc_close(tty, old_ldisc);
 
@@ -582,18 +576,15 @@ int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 	   the old ldisc (if it was restored as part of error cleanup
 	   above). In either case, releasing a single reference from
 	   the old ldisc is correct. */
-
-	tty_ldisc_put(old_ldisc);
-
-	/*
-	 *	Allow ldisc referencing to occur again
-	 */
+	new_ldisc = old_ldisc;
+out:
 	tty_ldisc_unlock(tty);
 
 	/* Restart the work queue in case no characters kick it off. Safe if
 	   already running */
 	tty_buffer_restart_work(tty->port);
-
+err:
+	tty_ldisc_put(new_ldisc);	/* drop the extra reference */
 	tty_unlock(tty);
 	return retval;
 }
diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
index ad7eba5ca380..1bf8ed13f827 100644
--- a/drivers/tty/tty_ldsem.c
+++ b/drivers/tty/tty_ldsem.c
@@ -319,7 +319,7 @@ down_write_failed(struct ld_semaphore *sem, long count, long timeout)
 
 
 
-static inline int __ldsem_down_read_nested(struct ld_semaphore *sem,
+static int __ldsem_down_read_nested(struct ld_semaphore *sem,
 					   int subclass, long timeout)
 {
 	long count;
@@ -338,7 +338,7 @@ static inline int __ldsem_down_read_nested(struct ld_semaphore *sem,
 	return 1;
 }
 
-static inline int __ldsem_down_write_nested(struct ld_semaphore *sem,
+static int __ldsem_down_write_nested(struct ld_semaphore *sem,
 					    int subclass, long timeout)
 {
 	long count;
diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c
index 0efcf713b756..77703a391207 100644
--- a/drivers/tty/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
@@ -12,11 +12,8 @@
 
 void __lockfunc tty_lock(struct tty_struct *tty)
 {
-	if (tty->magic != TTY_MAGIC) {
-		pr_err("L Bad %p\n", tty);
-		WARN_ON(1);
+	if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
 		return;
-	}
 	tty_kref_get(tty);
 	mutex_lock(&tty->legacy_mutex);
 }
@@ -24,11 +21,8 @@ EXPORT_SYMBOL(tty_lock);
 
 void __lockfunc tty_unlock(struct tty_struct *tty)
 {
-	if (tty->magic != TTY_MAGIC) {
-		pr_err("U Bad %p\n", tty);
-		WARN_ON(1);
+	if (WARN(tty->magic != TTY_MAGIC, "U Bad %p\n", tty))
 		return;
-	}
 	mutex_unlock(&tty->legacy_mutex);
 	tty_kref_put(tty);
 }
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 482f33f20043..846ed481c24f 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -462,14 +462,13 @@ int tty_port_close_start(struct tty_port *port,
 
 	spin_lock_irqsave(&port->lock, flags);
 	if (tty->count == 1 && port->count != 1) {
-		printk(KERN_WARNING
-		    "tty_port_close_start: tty->count = 1 port count = %d.\n",
-								port->count);
+		tty_warn(tty, "%s: tty->count = 1 port count = %d\n", __func__,
+			 port->count);
 		port->count = 1;
 	}
 	if (--port->count < 0) {
-		printk(KERN_WARNING "tty_port_close_start: count = %d\n",
-								port->count);
+		tty_warn(tty, "%s: bad port count (%d)\n", __func__,
+			 port->count);
 		port->count = 0;
 	}
 
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 4462d167900c..e7cbc44eef57 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -634,7 +634,7 @@ static void set_origin(struct vc_data *vc)
 	vc->vc_pos = vc->vc_origin + vc->vc_size_row * vc->vc_y + 2 * vc->vc_x;
 }
 
-static inline void save_screen(struct vc_data *vc)
+static void save_screen(struct vc_data *vc)
 {
 	WARN_CONSOLE_UNLOCKED();
 
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 5619b8ca3bf3..3644a3500b70 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -37,9 +37,4 @@ config USB_CHIPIDEA_HOST
 	  Say Y here to enable host controller functionality of the
 	  ChipIdea driver.
 
-config USB_CHIPIDEA_DEBUG
-	bool "ChipIdea driver debug"
-	help
-	  Say Y here to enable debugging output of the ChipIdea driver.
-
 endif
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index 4decb12f2578..518e445476c3 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -1,11 +1,8 @@
-ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG
-
 obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o
 
-ci_hdrc-y				:= core.o otg.o
+ci_hdrc-y				:= core.o otg.o debug.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)	+= udc.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)	+= host.o
-ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG)	+= debug.o
 ci_hdrc-$(CONFIG_USB_OTG_FSM)		+= otg_fsm.o
 
 # Glue/Bridge layers go here
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 41d7cf6d63ba..cd414559040f 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -433,4 +433,7 @@ int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
 
 void ci_platform_configure(struct ci_hdrc *ci);
 
+int dbg_create_files(struct ci_hdrc *ci);
+
+void dbg_remove_files(struct ci_hdrc *ci);
 #endif	/* __DRIVERS_USB_CHIPIDEA_CI_H */
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 5a048b7b92e8..f14f4ab47ebb 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -345,6 +345,11 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static void ci_hdrc_imx_shutdown(struct platform_device *pdev)
+{
+	ci_hdrc_imx_remove(pdev);
+}
+
 #ifdef CONFIG_PM
 static int imx_controller_suspend(struct device *dev)
 {
@@ -462,6 +467,7 @@ static const struct dev_pm_ops ci_hdrc_imx_pm_ops = {
 static struct platform_driver ci_hdrc_imx_driver = {
 	.probe = ci_hdrc_imx_probe,
 	.remove = ci_hdrc_imx_remove,
+	.shutdown = ci_hdrc_imx_shutdown,
 	.driver = {
 		.name = "imx_usb",
 		.of_match_table = ci_hdrc_imx_dt_ids,
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index d79ecc08a1be..3889809fd0c4 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -25,7 +25,8 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
 	case CI_HDRC_CONTROLLER_RESET_EVENT:
 		dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
 		writel(0, USB_AHBBURST);
-		writel(0, USB_AHBMODE);
+		/* use AHB transactor, allow posted data writes */
+		writel(0x8, USB_AHBMODE);
 		usb_phy_init(ci->usb_phy);
 		break;
 	case CI_HDRC_CONTROLLER_STOPPED_EVENT:
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e240dcb..7404064b9bbc 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -23,7 +23,6 @@
  * - BUS:    bus glue code, bus abstraction layer
  *
  * Compile Options
- * - CONFIG_USB_CHIPIDEA_DEBUG: enable debug facilities
  * - STALL_IN:  non-empty bulk-in pipes cannot be halted
  *              if defined mass storage compliance succeeds but with warnings
  *              => case 4: Hi >  Dn
@@ -71,7 +70,6 @@
 #include "udc.h"
 #include "bits.h"
 #include "host.h"
-#include "debug.h"
 #include "otg.h"
 #include "otg_fsm.h"
 
@@ -688,52 +686,39 @@ static int ci_get_platdata(struct device *dev,
 	if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
 		platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
 
-	if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
-		of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+	of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
 				     &platdata->phy_clkgate_delay_us);
 
 	platdata->itc_setting = 1;
-	if (of_find_property(dev->of_node, "itc-setting", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "itc-setting",
-			&platdata->itc_setting);
-		if (ret) {
-			dev_err(dev,
-				"failed to get itc-setting\n");
-			return ret;
-		}
-	}
 
-	if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
-			&platdata->ahb_burst_config);
-		if (ret) {
-			dev_err(dev,
-				"failed to get ahb-burst-config\n");
-			return ret;
-		}
+	of_property_read_u32(dev->of_node, "itc-setting",
+					&platdata->itc_setting);
+
+	ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+				&platdata->ahb_burst_config);
+	if (!ret) {
 		platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get ahb-burst-config\n");
+		return ret;
 	}
 
-	if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
-			&platdata->tx_burst_size);
-		if (ret) {
-			dev_err(dev,
-				"failed to get tx-burst-size-dword\n");
-			return ret;
-		}
+	ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+				&platdata->tx_burst_size);
+	if (!ret) {
 		platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get tx-burst-size-dword\n");
+		return ret;
 	}
 
-	if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
-			&platdata->rx_burst_size);
-		if (ret) {
-			dev_err(dev,
-				"failed to get rx-burst-size-dword\n");
-			return ret;
-		}
+	ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+				&platdata->rx_burst_size);
+	if (!ret) {
 		platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get rx-burst-size-dword\n");
+		return ret;
 	}
 
 	ext_id = ERR_PTR(-ENODEV);
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 58c8485a0715..a4f7db2e18dd 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -15,7 +15,6 @@
 #include "ci.h"
 #include "udc.h"
 #include "bits.h"
-#include "debug.h"
 #include "otg.h"
 
 /**
diff --git a/drivers/usb/chipidea/debug.h b/drivers/usb/chipidea/debug.h
deleted file mode 100644
index e16478c4a943..000000000000
--- a/drivers/usb/chipidea/debug.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * debug.h - ChipIdea USB driver debug interfaces
- *
- * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
- *
- * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __DRIVERS_USB_CHIPIDEA_DEBUG_H
-#define __DRIVERS_USB_CHIPIDEA_DEBUG_H
-
-#ifdef CONFIG_USB_CHIPIDEA_DEBUG
-int dbg_create_files(struct ci_hdrc *ci);
-void dbg_remove_files(struct ci_hdrc *ci);
-#else
-static inline int dbg_create_files(struct ci_hdrc *ci)
-{
-	return 0;
-}
-
-static inline void dbg_remove_files(struct ci_hdrc *ci)
-{
-}
-#endif
-
-#endif /* __DRIVERS_USB_CHIPIDEA_DEBUG_H */
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 3d24304405b3..053bac9d983c 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -190,6 +190,8 @@ static void host_stop(struct ci_hdrc *ci)
 			(ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON))
 				regulator_disable(ci->platdata->reg_vbus);
 	}
+	ci->hcd = NULL;
+	ci->otg.host = NULL;
 }
 
 
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 00ab59d45da1..ba90dc66703d 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -485,20 +485,30 @@ static void ci_otg_loc_conn(struct otg_fsm *fsm, int on)
 
 /*
  * Generate SOF by host.
- * This is controlled through suspend/resume the port.
  * In host mode, controller will automatically send SOF.
  * Suspend will block the data on the port.
+ *
+ * This is controlled through usbcore by usb autosuspend,
+ * so the usb device class driver need support autosuspend,
+ * otherwise the bus suspend will not happen.
  */
 static void ci_otg_loc_sof(struct otg_fsm *fsm, int on)
 {
-	struct ci_hdrc	*ci = container_of(fsm, struct ci_hdrc, fsm);
+	struct usb_device *udev;
 
-	if (on)
-		hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS | PORTSC_FPR,
-							PORTSC_FPR);
-	else
-		hw_write(ci, OP_PORTSC, PORTSC_W1C_BITS | PORTSC_SUSP,
-							PORTSC_SUSP);
+	if (!fsm->otg->host)
+		return;
+
+	udev = usb_hub_find_child(fsm->otg->host->root_hub, 1);
+	if (!udev)
+		return;
+
+	if (on) {
+		usb_disable_autosuspend(udev);
+	} else {
+		pm_runtime_set_autosuspend_delay(&udev->dev, 0);
+		usb_enable_autosuspend(udev);
+	}
 }
 
 /*
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 391a1225b0ba..3eafa2c9a2ba 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -26,7 +26,6 @@
 #include "ci.h"
 #include "udc.h"
 #include "bits.h"
-#include "debug.h"
 #include "otg.h"
 #include "otg_fsm.h"
 
@@ -349,14 +348,13 @@ static int add_td_to_list(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq,
 	if (node == NULL)
 		return -ENOMEM;
 
-	node->ptr = dma_pool_alloc(hwep->td_pool, GFP_ATOMIC,
+	node->ptr = dma_pool_zalloc(hwep->td_pool, GFP_ATOMIC,
 				   &node->dma);
 	if (node->ptr == NULL) {
 		kfree(node);
 		return -ENOMEM;
 	}
 
-	memset(node->ptr, 0, sizeof(struct ci_hw_td));
 	node->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES));
 	node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES);
 	node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE);
@@ -404,9 +402,9 @@ static inline u8 _usb_addr(struct ci_hw_ep *ep)
 }
 
 /**
- * _hardware_queue: configures a request at hardware level
- * @gadget: gadget
+ * _hardware_enqueue: configures a request at hardware level
  * @hwep:   endpoint
+ * @hwreq:  request
  *
  * This function returns an error code
  */
@@ -435,19 +433,28 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 	if (hwreq->req.dma % PAGE_SIZE)
 		pages--;
 
-	if (rest == 0)
-		add_td_to_list(hwep, hwreq, 0);
+	if (rest == 0) {
+		ret = add_td_to_list(hwep, hwreq, 0);
+		if (ret < 0)
+			goto done;
+	}
 
 	while (rest > 0) {
 		unsigned count = min(hwreq->req.length - hwreq->req.actual,
 					(unsigned)(pages * CI_HDRC_PAGE_SIZE));
-		add_td_to_list(hwep, hwreq, count);
+		ret = add_td_to_list(hwep, hwreq, count);
+		if (ret < 0)
+			goto done;
+
 		rest -= count;
 	}
 
 	if (hwreq->req.zero && hwreq->req.length && hwep->dir == TX
-	    && (hwreq->req.length % hwep->ep.maxpacket == 0))
-		add_td_to_list(hwep, hwreq, 0);
+	    && (hwreq->req.length % hwep->ep.maxpacket == 0)) {
+		ret = add_td_to_list(hwep, hwreq, 0);
+		if (ret < 0)
+			goto done;
+	}
 
 	firstnode = list_first_entry(&hwreq->tds, struct td_node, td);
 
@@ -788,8 +795,12 @@ static void isr_get_status_complete(struct usb_ep *ep, struct usb_request *req)
 
 /**
  * _ep_queue: queues (submits) an I/O request to an endpoint
+ * @ep:        endpoint
+ * @req:       request
+ * @gfp_flags: GFP flags (not used)
  *
  * Caller must hold lock
+ * This function returns an error code
  */
 static int _ep_queue(struct usb_ep *ep, struct usb_request *req,
 		    gfp_t __maybe_unused gfp_flags)
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 673d53038ed2..e6ec125e4485 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -17,6 +17,7 @@
 #include <linux/usb/ch9.h>
 #include <linux/usb/of.h>
 #include <linux/usb/otg.h>
+#include <linux/of_platform.h>
 
 const char *usb_otg_state_string(enum usb_otg_state state)
 {
@@ -106,25 +107,72 @@ static const char *const usb_dr_modes[] = {
 	[USB_DR_MODE_OTG]		= "otg",
 };
 
+static enum usb_dr_mode usb_get_dr_mode_from_string(const char *str)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
+		if (!strcmp(usb_dr_modes[i], str))
+			return i;
+
+	return USB_DR_MODE_UNKNOWN;
+}
+
 enum usb_dr_mode usb_get_dr_mode(struct device *dev)
 {
 	const char *dr_mode;
-	int err, i;
+	int err;
 
 	err = device_property_read_string(dev, "dr_mode", &dr_mode);
 	if (err < 0)
 		return USB_DR_MODE_UNKNOWN;
 
-	for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
-		if (!strcmp(dr_mode, usb_dr_modes[i]))
-			return i;
-
-	return USB_DR_MODE_UNKNOWN;
+	return usb_get_dr_mode_from_string(dr_mode);
 }
 EXPORT_SYMBOL_GPL(usb_get_dr_mode);
 
 #ifdef CONFIG_OF
 /**
+ * of_usb_get_dr_mode_by_phy - Get dual role mode for the controller device
+ * which is associated with the given phy device_node
+ * @np:	Pointer to the given phy device_node
+ *
+ * In dts a usb controller associates with phy devices.  The function gets
+ * the string from property 'dr_mode' of the controller associated with the
+ * given phy device node, and returns the correspondig enum usb_dr_mode.
+ */
+enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *phy_np)
+{
+	struct device_node *controller = NULL;
+	struct device_node *phy;
+	const char *dr_mode;
+	int index;
+	int err;
+
+	do {
+		controller = of_find_node_with_property(controller, "phys");
+		index = 0;
+		do {
+			phy = of_parse_phandle(controller, "phys", index);
+			of_node_put(phy);
+			if (phy == phy_np)
+				goto finish;
+			index++;
+		} while (phy);
+	} while (controller);
+
+finish:
+	err = of_property_read_string(controller, "dr_mode", &dr_mode);
+	of_node_put(controller);
+
+	if (err < 0)
+		return USB_DR_MODE_UNKNOWN;
+
+	return usb_get_dr_mode_from_string(dr_mode);
+}
+EXPORT_SYMBOL_GPL(of_usb_get_dr_mode_by_phy);
+
+/**
  * of_usb_host_tpl_support - to get if Targeted Peripheral List is supported
  * for given targeted hosts (non-PC hosts)
  * @np: Pointer to the given device_node
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index dbc3e143453a..59e7a3369084 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -100,6 +100,11 @@ static bool usbfs_snoop;
 module_param(usbfs_snoop, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(usbfs_snoop, "true to log all usbfs traffic");
 
+static unsigned usbfs_snoop_max = 65536;
+module_param(usbfs_snoop_max, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(usbfs_snoop_max,
+		"maximum number of bytes to print while snooping");
+
 #define snoop(dev, format, arg...)				\
 	do {							\
 		if (usbfs_snoop)				\
@@ -368,6 +373,7 @@ static void snoop_urb(struct usb_device *udev,
 					ep, t, d, length, timeout_or_status);
 	}
 
+	data_len = min(data_len, usbfs_snoop_max);
 	if (data && data_len > 0) {
 		print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_NONE, 32, 1,
 			data, data_len, 1);
@@ -378,7 +384,8 @@ static void snoop_urb_data(struct urb *urb, unsigned len)
 {
 	int i, size;
 
-	if (!usbfs_snoop)
+	len = min(len, usbfs_snoop_max);
+	if (!usbfs_snoop || len == 0)
 		return;
 
 	if (urb->num_sgs == 0) {
@@ -1685,8 +1692,12 @@ static struct async *reap_as(struct usb_dev_state *ps)
 static int proc_reapurb(struct usb_dev_state *ps, void __user *arg)
 {
 	struct async *as = reap_as(ps);
+
 	if (as) {
-		int retval = processcompl(as, (void __user * __user *)arg);
+		int retval;
+
+		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
 	}
@@ -1702,6 +1713,7 @@ static int proc_reapurbnonblock(struct usb_dev_state *ps, void __user *arg)
 
 	as = async_getcompleted(ps);
 	if (as) {
+		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -1828,8 +1840,12 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
 static int proc_reapurb_compat(struct usb_dev_state *ps, void __user *arg)
 {
 	struct async *as = reap_as(ps);
+
 	if (as) {
-		int retval = processcompl_compat(as, (void __user * __user *)arg);
+		int retval;
+
+		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
 	}
@@ -1845,6 +1861,7 @@ static int proc_reapurbnonblock_compat(struct usb_dev_state *ps, void __user *ar
 
 	as = async_getcompleted(ps);
 	if (as) {
+		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -2249,7 +2266,7 @@ static long usbdev_do_ioctl(struct file *file, unsigned int cmd,
 #endif
 
 	case USBDEVFS_DISCARDURB:
-		snoop(&dev->dev, "%s: DISCARDURB\n", __func__);
+		snoop(&dev->dev, "%s: DISCARDURB %p\n", __func__, p);
 		ret = proc_unlinkurb(ps, p);
 		break;
 
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 1c102d60cd9f..df0e3b92533a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -3000,7 +3000,7 @@ EXPORT_SYMBOL_GPL(usb_hcd_platform_shutdown);
 
 #if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
 
-struct usb_mon_operations *mon_ops;
+const struct usb_mon_operations *mon_ops;
 
 /*
  * The registration is unlocked.
@@ -3010,7 +3010,7 @@ struct usb_mon_operations *mon_ops;
  * symbols from usbcore, usbcore gets referenced and cannot be unloaded first.
  */
 
-int usb_mon_register (struct usb_mon_operations *ops)
+int usb_mon_register(const struct usb_mon_operations *ops)
 {
 
 	if (mon_ops)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index ddbf32d599cb..51b436918f78 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3324,7 +3324,7 @@ static int finish_port_resume(struct usb_device *udev)
 /*
  * There are some SS USB devices which take longer time for link training.
  * XHCI specs 4.19.4 says that when Link training is successful, port
- * sets CSC bit to 1. So if SW reads port status before successful link
+ * sets CCS bit to 1. So if SW reads port status before successful link
  * training, then it will not find device to be present.
  * USB Analyzer log with such buggy devices show that in some cases
  * device switch on the RX termination after long delay of host enabling
@@ -3335,14 +3335,17 @@ static int finish_port_resume(struct usb_device *udev)
  * routine implements a 2000 ms timeout for link training. If in a case
  * link trains before timeout, loop will exit earlier.
  *
+ * There are also some 2.0 hard drive based devices and 3.0 thumb
+ * drives that, when plugged into a 2.0 only port, take a long
+ * time to set CCS after VBUS enable.
+ *
  * FIXME: If a device was connected before suspend, but was removed
  * while system was asleep, then the loop in the following routine will
  * only exit at timeout.
  *
- * This routine should only be called when persist is enabled for a SS
- * device.
+ * This routine should only be called when persist is enabled.
  */
-static int wait_for_ss_port_enable(struct usb_device *udev,
+static int wait_for_connected(struct usb_device *udev,
 		struct usb_hub *hub, int *port1,
 		u16 *portchange, u16 *portstatus)
 {
@@ -3355,6 +3358,7 @@ static int wait_for_ss_port_enable(struct usb_device *udev,
 		delay_ms += 20;
 		status = hub_port_status(hub, *port1, portstatus, portchange);
 	}
+	dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms);
 	return status;
 }
 
@@ -3454,8 +3458,8 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
 		}
 	}
 
-	if (udev->persist_enabled && hub_is_superspeed(hub->hdev))
-		status = wait_for_ss_port_enable(udev, hub, &port1, &portchange,
+	if (udev->persist_enabled)
+		status = wait_for_connected(udev, hub, &port1, &portchange,
 				&portstatus);
 
 	status = check_port_resume_type(udev,
@@ -3895,17 +3899,30 @@ static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev,
 		return;
 	}
 
-	if (usb_set_lpm_timeout(udev, state, timeout))
+	if (usb_set_lpm_timeout(udev, state, timeout)) {
 		/* If we can't set the parent hub U1/U2 timeout,
 		 * device-initiated LPM won't be allowed either, so let the xHCI
 		 * host know that this link state won't be enabled.
 		 */
 		hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state);
+	} else {
+		/* Only a configured device will accept the Set Feature
+		 * U1/U2_ENABLE
+		 */
+		if (udev->actconfig)
+			usb_set_device_initiated_lpm(udev, state, true);
 
-	/* Only a configured device will accept the Set Feature U1/U2_ENABLE */
-	else if (udev->actconfig)
-		usb_set_device_initiated_lpm(udev, state, true);
-
+		/* As soon as usb_set_lpm_timeout(timeout) returns 0, the
+		 * hub-initiated LPM is enabled. Thus, LPM is enabled no
+		 * matter the result of usb_set_device_initiated_lpm().
+		 * The only difference is whether device is able to initiate
+		 * LPM.
+		 */
+		if (state == USB3_LPM_U1)
+			udev->usb3_lpm_u1_enabled = 1;
+		else if (state == USB3_LPM_U2)
+			udev->usb3_lpm_u2_enabled = 1;
+	}
 }
 
 /*
@@ -3945,6 +3962,18 @@ static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev,
 		dev_warn(&udev->dev, "Could not disable xHCI %s timeout, "
 				"bus schedule bandwidth may be impacted.\n",
 				usb3_lpm_names[state]);
+
+	/* As soon as usb_set_lpm_timeout(0) return 0, hub initiated LPM
+	 * is disabled. Hub will disallows link to enter U1/U2 as well,
+	 * even device is initiating LPM. Hence LPM is disabled if hub LPM
+	 * timeout set to 0, no matter device-initiated LPM is disabled or
+	 * not.
+	 */
+	if (state == USB3_LPM_U1)
+		udev->usb3_lpm_u1_enabled = 0;
+	else if (state == USB3_LPM_U2)
+		udev->usb3_lpm_u2_enabled = 0;
+
 	return 0;
 }
 
@@ -3979,8 +4008,6 @@ int usb_disable_lpm(struct usb_device *udev)
 	if (usb_disable_link_state(hcd, udev, USB3_LPM_U2))
 		goto enable_lpm;
 
-	udev->usb3_lpm_enabled = 0;
-
 	return 0;
 
 enable_lpm:
@@ -4017,6 +4044,8 @@ EXPORT_SYMBOL_GPL(usb_unlocked_disable_lpm);
 void usb_enable_lpm(struct usb_device *udev)
 {
 	struct usb_hcd *hcd;
+	struct usb_hub *hub;
+	struct usb_port *port_dev;
 
 	if (!udev || !udev->parent ||
 			udev->speed != USB_SPEED_SUPER ||
@@ -4036,10 +4065,17 @@ void usb_enable_lpm(struct usb_device *udev)
 	if (udev->lpm_disable_count > 0)
 		return;
 
-	usb_enable_link_state(hcd, udev, USB3_LPM_U1);
-	usb_enable_link_state(hcd, udev, USB3_LPM_U2);
+	hub = usb_hub_to_struct_hub(udev->parent);
+	if (!hub)
+		return;
+
+	port_dev = hub->ports[udev->portnum - 1];
+
+	if (port_dev->usb3_lpm_u1_permit)
+		usb_enable_link_state(hcd, udev, USB3_LPM_U1);
 
-	udev->usb3_lpm_enabled = 1;
+	if (port_dev->usb3_lpm_u2_permit)
+		usb_enable_link_state(hcd, udev, USB3_LPM_U2);
 }
 EXPORT_SYMBOL_GPL(usb_enable_lpm);
 
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 688817fb3246..45d070dd1d03 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -92,6 +92,8 @@ struct usb_hub {
  * @status_lock: synchronize port_event() vs usb_port_{suspend|resume}
  * @portnum: port index num based one
  * @is_superspeed cache super-speed status
+ * @usb3_lpm_u1_permit: whether USB3 U1 LPM is permitted.
+ * @usb3_lpm_u2_permit: whether USB3 U2 LPM is permitted.
  */
 struct usb_port {
 	struct usb_device *child;
@@ -104,6 +106,8 @@ struct usb_port {
 	struct mutex status_lock;
 	u8 portnum;
 	unsigned int is_superspeed:1;
+	unsigned int usb3_lpm_u1_permit:1;
+	unsigned int usb3_lpm_u2_permit:1;
 };
 
 #define to_usb_port(_dev) \
@@ -155,4 +159,3 @@ static inline int hub_port_debounce_be_stable(struct usb_hub *hub,
 {
 	return hub_port_debounce(hub, port1, false);
 }
-
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 5487fe308f01..460c855be0d0 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -50,6 +50,72 @@ static ssize_t connect_type_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(connect_type);
 
+static ssize_t usb3_lpm_permit_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct usb_port *port_dev = to_usb_port(dev);
+	const char *p;
+
+	if (port_dev->usb3_lpm_u1_permit) {
+		if (port_dev->usb3_lpm_u2_permit)
+			p = "u1_u2";
+		else
+			p = "u1";
+	} else {
+		if (port_dev->usb3_lpm_u2_permit)
+			p = "u2";
+		else
+			p = "0";
+	}
+
+	return sprintf(buf, "%s\n", p);
+}
+
+static ssize_t usb3_lpm_permit_store(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct usb_port *port_dev = to_usb_port(dev);
+	struct usb_device *udev = port_dev->child;
+	struct usb_hcd *hcd;
+
+	if (!strncmp(buf, "u1_u2", 5)) {
+		port_dev->usb3_lpm_u1_permit = 1;
+		port_dev->usb3_lpm_u2_permit = 1;
+
+	} else if (!strncmp(buf, "u1", 2)) {
+		port_dev->usb3_lpm_u1_permit = 1;
+		port_dev->usb3_lpm_u2_permit = 0;
+
+	} else if (!strncmp(buf, "u2", 2)) {
+		port_dev->usb3_lpm_u1_permit = 0;
+		port_dev->usb3_lpm_u2_permit = 1;
+
+	} else if (!strncmp(buf, "0", 1)) {
+		port_dev->usb3_lpm_u1_permit = 0;
+		port_dev->usb3_lpm_u2_permit = 0;
+	} else
+		return -EINVAL;
+
+	/* If device is connected to the port, disable or enable lpm
+	 * to make new u1 u2 setting take effect immediately.
+	 */
+	if (udev) {
+		hcd = bus_to_hcd(udev->bus);
+		if (!hcd)
+			return -EINVAL;
+		usb_lock_device(udev);
+		mutex_lock(hcd->bandwidth_mutex);
+		if (!usb_disable_lpm(udev))
+			usb_enable_lpm(udev);
+		mutex_unlock(hcd->bandwidth_mutex);
+		usb_unlock_device(udev);
+	}
+
+	return count;
+}
+static DEVICE_ATTR_RW(usb3_lpm_permit);
+
 static struct attribute *port_dev_attrs[] = {
 	&dev_attr_connect_type.attr,
 	NULL,
@@ -64,6 +130,21 @@ static const struct attribute_group *port_dev_group[] = {
 	NULL,
 };
 
+static struct attribute *port_dev_usb3_attrs[] = {
+	&dev_attr_usb3_lpm_permit.attr,
+	NULL,
+};
+
+static struct attribute_group port_dev_usb3_attr_grp = {
+	.attrs = port_dev_usb3_attrs,
+};
+
+static const struct attribute_group *port_dev_usb3_group[] = {
+	&port_dev_attr_grp,
+	&port_dev_usb3_attr_grp,
+	NULL,
+};
+
 static void usb_port_device_release(struct device *dev)
 {
 	struct usb_port *port_dev = to_usb_port(dev);
@@ -401,6 +482,7 @@ static void find_and_link_peer(struct usb_hub *hub, int port1)
 int usb_hub_create_port_device(struct usb_hub *hub, int port1)
 {
 	struct usb_port *port_dev;
+	struct usb_device *hdev = hub->hdev;
 	int retval;
 
 	port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
@@ -417,7 +499,12 @@ int usb_hub_create_port_device(struct usb_hub *hub, int port1)
 	port_dev->portnum = port1;
 	set_bit(port1, hub->power_bits);
 	port_dev->dev.parent = hub->intfdev;
-	port_dev->dev.groups = port_dev_group;
+	if (hub_is_superspeed(hdev)) {
+		port_dev->usb3_lpm_u1_permit = 1;
+		port_dev->usb3_lpm_u2_permit = 1;
+		port_dev->dev.groups = port_dev_usb3_group;
+	} else
+		port_dev->dev.groups = port_dev_group;
 	port_dev->dev.type = &usb_port_device_type;
 	port_dev->dev.driver = &usb_port_driver;
 	if (hub_is_superspeed(hub->hdev))
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index d9ec2de6c4cf..65b6e6b84043 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -531,7 +531,7 @@ static ssize_t usb2_lpm_besl_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(usb2_lpm_besl);
 
-static ssize_t usb3_hardware_lpm_show(struct device *dev,
+static ssize_t usb3_hardware_lpm_u1_show(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
 	struct usb_device *udev = to_usb_device(dev);
@@ -539,7 +539,7 @@ static ssize_t usb3_hardware_lpm_show(struct device *dev,
 
 	usb_lock_device(udev);
 
-	if (udev->usb3_lpm_enabled)
+	if (udev->usb3_lpm_u1_enabled)
 		p = "enabled";
 	else
 		p = "disabled";
@@ -548,7 +548,26 @@ static ssize_t usb3_hardware_lpm_show(struct device *dev,
 
 	return sprintf(buf, "%s\n", p);
 }
-static DEVICE_ATTR_RO(usb3_hardware_lpm);
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u1);
+
+static ssize_t usb3_hardware_lpm_u2_show(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct usb_device *udev = to_usb_device(dev);
+	const char *p;
+
+	usb_lock_device(udev);
+
+	if (udev->usb3_lpm_u2_enabled)
+		p = "enabled";
+	else
+		p = "disabled";
+
+	usb_unlock_device(udev);
+
+	return sprintf(buf, "%s\n", p);
+}
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u2);
 
 static struct attribute *usb2_hardware_lpm_attr[] = {
 	&dev_attr_usb2_hardware_lpm.attr,
@@ -562,7 +581,8 @@ static struct attribute_group usb2_hardware_lpm_attr_group = {
 };
 
 static struct attribute *usb3_hardware_lpm_attr[] = {
-	&dev_attr_usb3_hardware_lpm.attr,
+	&dev_attr_usb3_hardware_lpm_u1.attr,
+	&dev_attr_usb3_hardware_lpm_u2.attr,
 	NULL,
 };
 static struct attribute_group usb3_hardware_lpm_attr_group = {
@@ -592,7 +612,8 @@ static int add_power_attributes(struct device *dev)
 		if (udev->usb2_hw_lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb2_hardware_lpm_attr_group);
-		if (udev->lpm_capable == 1)
+		if (udev->speed == USB_SPEED_SUPER &&
+				udev->lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb3_hardware_lpm_attr_group);
 	}
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index f8bbd0b6d9fe..77e4c9bc0ab1 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -49,12 +49,7 @@ const char *usbcore_name = "usbcore";
 
 static bool nousb;	/* Disable USB when built into kernel image */
 
-/* To disable USB, kernel command line is 'nousb' not 'usbcore.nousb' */
-#ifdef MODULE
 module_param(nousb, bool, 0444);
-#else
-core_param(nousb, nousb, bool, 0444);
-#endif
 
 /*
  * for external read access to <nousb>
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index ef73e498e98f..39a0fa8a4c0a 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -481,64 +481,168 @@ static void dwc2_init_fs_ls_pclk_sel(struct dwc2_hsotg *hsotg)
  * Do core a soft reset of the core.  Be careful with this because it
  * resets all the internal state machines of the core.
  */
-static int dwc2_core_reset(struct dwc2_hsotg *hsotg)
+int dwc2_core_reset(struct dwc2_hsotg *hsotg)
 {
 	u32 greset;
 	int count = 0;
-	u32 gusbcfg;
 
 	dev_vdbg(hsotg->dev, "%s()\n", __func__);
 
-	/* Wait for AHB master IDLE state */
+	/* Core Soft Reset */
+	greset = dwc2_readl(hsotg->regs + GRSTCTL);
+	greset |= GRSTCTL_CSFTRST;
+	dwc2_writel(greset, hsotg->regs + GRSTCTL);
 	do {
-		usleep_range(20000, 40000);
+		udelay(1);
 		greset = dwc2_readl(hsotg->regs + GRSTCTL);
 		if (++count > 50) {
 			dev_warn(hsotg->dev,
-				 "%s() HANG! AHB Idle GRSTCTL=%0x\n",
+				 "%s() HANG! Soft Reset GRSTCTL=%0x\n",
 				 __func__, greset);
 			return -EBUSY;
 		}
-	} while (!(greset & GRSTCTL_AHBIDLE));
+	} while (greset & GRSTCTL_CSFTRST);
 
-	/* Core Soft Reset */
+	/* Wait for AHB master IDLE state */
 	count = 0;
-	greset |= GRSTCTL_CSFTRST;
-	dwc2_writel(greset, hsotg->regs + GRSTCTL);
 	do {
-		usleep_range(20000, 40000);
+		udelay(1);
 		greset = dwc2_readl(hsotg->regs + GRSTCTL);
 		if (++count > 50) {
 			dev_warn(hsotg->dev,
-				 "%s() HANG! Soft Reset GRSTCTL=%0x\n",
+				 "%s() HANG! AHB Idle GRSTCTL=%0x\n",
 				 __func__, greset);
 			return -EBUSY;
 		}
-	} while (greset & GRSTCTL_CSFTRST);
+	} while (!(greset & GRSTCTL_AHBIDLE));
 
-	if (hsotg->dr_mode == USB_DR_MODE_HOST) {
-		gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-		gusbcfg &= ~GUSBCFG_FORCEDEVMODE;
-		gusbcfg |= GUSBCFG_FORCEHOSTMODE;
-		dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
-	} else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) {
-		gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-		gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
-		gusbcfg |= GUSBCFG_FORCEDEVMODE;
-		dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
-	} else if (hsotg->dr_mode == USB_DR_MODE_OTG) {
-		gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-		gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
-		gusbcfg &= ~GUSBCFG_FORCEDEVMODE;
-		dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
-	}
+	return 0;
+}
+
+/*
+ * Force the mode of the controller.
+ *
+ * Forcing the mode is needed for two cases:
+ *
+ * 1) If the dr_mode is set to either HOST or PERIPHERAL we force the
+ * controller to stay in a particular mode regardless of ID pin
+ * changes. We do this usually after a core reset.
+ *
+ * 2) During probe we want to read reset values of the hw
+ * configuration registers that are only available in either host or
+ * device mode. We may need to force the mode if the current mode does
+ * not allow us to access the register in the mode that we want.
+ *
+ * In either case it only makes sense to force the mode if the
+ * controller hardware is OTG capable.
+ *
+ * Checks are done in this function to determine whether doing a force
+ * would be valid or not.
+ *
+ * If a force is done, it requires a 25ms delay to take effect.
+ *
+ * Returns true if the mode was forced.
+ */
+static bool dwc2_force_mode(struct dwc2_hsotg *hsotg, bool host)
+{
+	u32 gusbcfg;
+	u32 set;
+	u32 clear;
+
+	dev_dbg(hsotg->dev, "Forcing mode to %s\n", host ? "host" : "device");
+
+	/*
+	 * Force mode has no effect if the hardware is not OTG.
+	 */
+	if (!dwc2_hw_is_otg(hsotg))
+		return false;
+
+	/*
+	 * If dr_mode is either peripheral or host only, there is no
+	 * need to ever force the mode to the opposite mode.
+	 */
+	if (WARN_ON(host && hsotg->dr_mode == USB_DR_MODE_PERIPHERAL))
+		return false;
+
+	if (WARN_ON(!host && hsotg->dr_mode == USB_DR_MODE_HOST))
+		return false;
+
+	gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
+
+	set = host ? GUSBCFG_FORCEHOSTMODE : GUSBCFG_FORCEDEVMODE;
+	clear = host ? GUSBCFG_FORCEDEVMODE : GUSBCFG_FORCEHOSTMODE;
+
+	/*
+	 * If the force mode bit is already set, don't set it.
+	 */
+	if ((gusbcfg & set) && !(gusbcfg & clear))
+		return false;
+
+	gusbcfg &= ~clear;
+	gusbcfg |= set;
+	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
+
+	msleep(25);
+	return true;
+}
+
+/*
+ * Clears the force mode bits.
+ */
+static void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg)
+{
+	u32 gusbcfg;
+
+	gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
+	gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
+	gusbcfg &= ~GUSBCFG_FORCEDEVMODE;
+	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
 
 	/*
 	 * NOTE: This long sleep is _very_ important, otherwise the core will
 	 * not stay in host mode after a connector ID change!
 	 */
-	usleep_range(150000, 200000);
+	msleep(25);
+}
+
+/*
+ * Sets or clears force mode based on the dr_mode parameter.
+ */
+void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg)
+{
+	switch (hsotg->dr_mode) {
+	case USB_DR_MODE_HOST:
+		dwc2_force_mode(hsotg, true);
+		break;
+	case USB_DR_MODE_PERIPHERAL:
+		dwc2_force_mode(hsotg, false);
+		break;
+	case USB_DR_MODE_OTG:
+		dwc2_clear_force_mode(hsotg);
+		break;
+	default:
+		dev_warn(hsotg->dev, "%s() Invalid dr_mode=%d\n",
+			 __func__, hsotg->dr_mode);
+		break;
+	}
+}
+
+/*
+ * Do core a soft reset of the core.  Be careful with this because it
+ * resets all the internal state machines of the core.
+ *
+ * Additionally this will apply force mode as per the hsotg->dr_mode
+ * parameter.
+ */
+int dwc2_core_reset_and_force_dr_mode(struct dwc2_hsotg *hsotg)
+{
+	int retval;
 
+	retval = dwc2_core_reset(hsotg);
+	if (retval)
+		return retval;
+
+	dwc2_force_dr_mode(hsotg);
 	return 0;
 }
 
@@ -553,16 +657,20 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 	 */
 	if (select_phy) {
 		dev_dbg(hsotg->dev, "FS PHY selected\n");
+
 		usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-		usbcfg |= GUSBCFG_PHYSEL;
-		dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
+		if (!(usbcfg & GUSBCFG_PHYSEL)) {
+			usbcfg |= GUSBCFG_PHYSEL;
+			dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
 
-		/* Reset after a PHY select */
-		retval = dwc2_core_reset(hsotg);
-		if (retval) {
-			dev_err(hsotg->dev, "%s() Reset failed, aborting",
-					__func__);
-			return retval;
+			/* Reset after a PHY select */
+			retval = dwc2_core_reset_and_force_dr_mode(hsotg);
+
+			if (retval) {
+				dev_err(hsotg->dev,
+					"%s: Reset failed, aborting", __func__);
+				return retval;
+			}
 		}
 	}
 
@@ -597,13 +705,13 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 
 static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 {
-	u32 usbcfg;
+	u32 usbcfg, usbcfg_old;
 	int retval = 0;
 
 	if (!select_phy)
 		return 0;
 
-	usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
+	usbcfg = usbcfg_old = dwc2_readl(hsotg->regs + GUSBCFG);
 
 	/*
 	 * HS PHY parameters. These parameters are preserved during soft reset
@@ -631,14 +739,16 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 		break;
 	}
 
-	dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
+	if (usbcfg != usbcfg_old) {
+		dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
 
-	/* Reset after setting the PHY parameters */
-	retval = dwc2_core_reset(hsotg);
-	if (retval) {
-		dev_err(hsotg->dev, "%s() Reset failed, aborting",
-				__func__);
-		return retval;
+		/* Reset after setting the PHY parameters */
+		retval = dwc2_core_reset_and_force_dr_mode(hsotg);
+		if (retval) {
+			dev_err(hsotg->dev,
+				"%s: Reset failed, aborting", __func__);
+			return retval;
+		}
 	}
 
 	return retval;
@@ -765,11 +875,10 @@ static void dwc2_gusbcfg_init(struct dwc2_hsotg *hsotg)
  * dwc2_core_init() - Initializes the DWC_otg controller registers and
  * prepares the core for device mode or host mode operation
  *
- * @hsotg:      Programming view of the DWC_otg controller
- * @select_phy: If true then also set the Phy type
- * @irq:        If >= 0, the irq to register
+ * @hsotg:         Programming view of the DWC_otg controller
+ * @initial_setup: If true then this is the first init for this instance.
  */
-int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
+int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup)
 {
 	u32 usbcfg, otgctl;
 	int retval;
@@ -791,18 +900,26 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
 
 	dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
 
-	/* Reset the Controller */
-	retval = dwc2_core_reset(hsotg);
-	if (retval) {
-		dev_err(hsotg->dev, "%s(): Reset failed, aborting\n",
-				__func__);
-		return retval;
+	/*
+	 * Reset the Controller
+	 *
+	 * We only need to reset the controller if this is a re-init.
+	 * For the first init we know for sure that earlier code reset us (it
+	 * needed to in order to properly detect various parameters).
+	 */
+	if (!initial_setup) {
+		retval = dwc2_core_reset_and_force_dr_mode(hsotg);
+		if (retval) {
+			dev_err(hsotg->dev, "%s(): Reset failed, aborting\n",
+					__func__);
+			return retval;
+		}
 	}
 
 	/*
 	 * This needs to happen in FS mode before any other programming occurs
 	 */
-	retval = dwc2_phy_init(hsotg, select_phy);
+	retval = dwc2_phy_init(hsotg, initial_setup);
 	if (retval)
 		return retval;
 
@@ -1707,6 +1824,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
 	u32 hcchar;
 	u32 hctsiz = 0;
 	u16 num_packets;
+	u32 ec_mc;
 
 	if (dbg_hc(chan))
 		dev_vdbg(hsotg->dev, "%s()\n", __func__);
@@ -1743,6 +1861,13 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
 
 		hctsiz |= chan->xfer_len << TSIZ_XFERSIZE_SHIFT &
 			  TSIZ_XFERSIZE_MASK;
+
+		/* For split set ec_mc for immediate retries */
+		if (chan->ep_type == USB_ENDPOINT_XFER_INT ||
+		    chan->ep_type == USB_ENDPOINT_XFER_ISOC)
+			ec_mc = 3;
+		else
+			ec_mc = 1;
 	} else {
 		if (dbg_hc(chan))
 			dev_vdbg(hsotg->dev, "no split\n");
@@ -1805,6 +1930,9 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
 
 		hctsiz |= chan->xfer_len << TSIZ_XFERSIZE_SHIFT &
 			  TSIZ_XFERSIZE_MASK;
+
+		/* The ec_mc gets the multi_count for non-split */
+		ec_mc = chan->multi_count;
 	}
 
 	chan->start_pkt_count = num_packets;
@@ -1855,8 +1983,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
 
 	hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
 	hcchar &= ~HCCHAR_MULTICNT_MASK;
-	hcchar |= chan->multi_count << HCCHAR_MULTICNT_SHIFT &
-		  HCCHAR_MULTICNT_MASK;
+	hcchar |= (ec_mc << HCCHAR_MULTICNT_SHIFT) & HCCHAR_MULTICNT_MASK;
 	dwc2_hc_set_even_odd_frame(hsotg, chan, &hcchar);
 
 	if (hcchar & HCCHAR_CHDIS)
@@ -1905,7 +2032,6 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
 				 struct dwc2_host_chan *chan)
 {
 	u32 hcchar;
-	u32 hc_dma;
 	u32 hctsiz = 0;
 
 	if (chan->do_ping)
@@ -1934,14 +2060,14 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
 
 	dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
 
-	hc_dma = (u32)chan->desc_list_addr & HCDMA_DMA_ADDR_MASK;
+	dma_sync_single_for_device(hsotg->dev, chan->desc_list_addr,
+				   chan->desc_list_sz, DMA_TO_DEVICE);
+
+	dwc2_writel(chan->desc_list_addr, hsotg->regs + HCDMA(chan->hc_num));
 
-	/* Always start from first descriptor */
-	hc_dma &= ~HCDMA_CTD_MASK;
-	dwc2_writel(hc_dma, hsotg->regs + HCDMA(chan->hc_num));
 	if (dbg_hc(chan))
-		dev_vdbg(hsotg->dev, "Wrote %08x to HCDMA(%d)\n",
-			 hc_dma, chan->hc_num);
+		dev_vdbg(hsotg->dev, "Wrote %pad to HCDMA(%d)\n",
+			 &chan->desc_list_addr, chan->hc_num);
 
 	hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
 	hcchar &= ~HCCHAR_MULTICNT_MASK;
@@ -2485,6 +2611,29 @@ void dwc2_set_param_dma_desc_enable(struct dwc2_hsotg *hsotg, int val)
 	hsotg->core_params->dma_desc_enable = val;
 }
 
+void dwc2_set_param_dma_desc_fs_enable(struct dwc2_hsotg *hsotg, int val)
+{
+	int valid = 1;
+
+	if (val > 0 && (hsotg->core_params->dma_enable <= 0 ||
+			!hsotg->hw_params.dma_desc_enable))
+		valid = 0;
+	if (val < 0)
+		valid = 0;
+
+	if (!valid) {
+		if (val >= 0)
+			dev_err(hsotg->dev,
+				"%d invalid for dma_desc_fs_enable parameter. Check HW configuration.\n",
+				val);
+		val = (hsotg->core_params->dma_enable > 0 &&
+			hsotg->hw_params.dma_desc_enable);
+	}
+
+	hsotg->core_params->dma_desc_fs_enable = val;
+	dev_dbg(hsotg->dev, "Setting dma_desc_fs_enable to %d\n", val);
+}
+
 void dwc2_set_param_host_support_fs_ls_low_power(struct dwc2_hsotg *hsotg,
 						 int val)
 {
@@ -3016,6 +3165,7 @@ void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
 	dwc2_set_param_otg_cap(hsotg, params->otg_cap);
 	dwc2_set_param_dma_enable(hsotg, params->dma_enable);
 	dwc2_set_param_dma_desc_enable(hsotg, params->dma_desc_enable);
+	dwc2_set_param_dma_desc_fs_enable(hsotg, params->dma_desc_fs_enable);
 	dwc2_set_param_host_support_fs_ls_low_power(hsotg,
 			params->host_support_fs_ls_low_power);
 	dwc2_set_param_enable_dynamic_fifo(hsotg,
@@ -3052,17 +3202,93 @@ void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
 	dwc2_set_param_hibernation(hsotg, params->hibernation);
 }
 
+/*
+ * Forces either host or device mode if the controller is not
+ * currently in that mode.
+ *
+ * Returns true if the mode was forced.
+ */
+static bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host)
+{
+	if (host && dwc2_is_host_mode(hsotg))
+		return false;
+	else if (!host && dwc2_is_device_mode(hsotg))
+		return false;
+
+	return dwc2_force_mode(hsotg, host);
+}
+
+/*
+ * Gets host hardware parameters. Forces host mode if not currently in
+ * host mode. Should be called immediately after a core soft reset in
+ * order to get the reset values.
+ */
+static void dwc2_get_host_hwparams(struct dwc2_hsotg *hsotg)
+{
+	struct dwc2_hw_params *hw = &hsotg->hw_params;
+	u32 gnptxfsiz;
+	u32 hptxfsiz;
+	bool forced;
+
+	if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+		return;
+
+	forced = dwc2_force_mode_if_needed(hsotg, true);
+
+	gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
+	hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
+	dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
+	dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz);
+
+	if (forced)
+		dwc2_clear_force_mode(hsotg);
+
+	hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >>
+				       FIFOSIZE_DEPTH_SHIFT;
+	hw->host_perio_tx_fifo_size = (hptxfsiz & FIFOSIZE_DEPTH_MASK) >>
+				      FIFOSIZE_DEPTH_SHIFT;
+}
+
+/*
+ * Gets device hardware parameters. Forces device mode if not
+ * currently in device mode. Should be called immediately after a core
+ * soft reset in order to get the reset values.
+ */
+static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg)
+{
+	struct dwc2_hw_params *hw = &hsotg->hw_params;
+	bool forced;
+	u32 gnptxfsiz;
+
+	if (hsotg->dr_mode == USB_DR_MODE_HOST)
+		return;
+
+	forced = dwc2_force_mode_if_needed(hsotg, false);
+
+	gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
+	dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
+
+	if (forced)
+		dwc2_clear_force_mode(hsotg);
+
+	hw->dev_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >>
+				       FIFOSIZE_DEPTH_SHIFT;
+}
+
 /**
  * During device initialization, read various hardware configuration
  * registers and interpret the contents.
+ *
+ * This should be called during driver probe. It will perform a core
+ * soft reset in order to get the reset values of the parameters.
  */
 int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
 {
 	struct dwc2_hw_params *hw = &hsotg->hw_params;
 	unsigned width;
 	u32 hwcfg1, hwcfg2, hwcfg3, hwcfg4;
-	u32 hptxfsiz, grxfsiz, gnptxfsiz;
-	u32 gusbcfg;
+	u32 grxfsiz;
+	int retval;
 
 	/*
 	 * Attempt to ensure this device is really a DWC_otg Controller.
@@ -3082,6 +3308,10 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
 		hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf,
 		hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid);
 
+	retval = dwc2_core_reset(hsotg);
+	if (retval)
+		return retval;
+
 	hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1);
 	hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2);
 	hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3);
@@ -3094,20 +3324,16 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
 	dev_dbg(hsotg->dev, "hwcfg4=%08x\n", hwcfg4);
 	dev_dbg(hsotg->dev, "grxfsiz=%08x\n", grxfsiz);
 
-	/* Force host mode to get HPTXFSIZ / GNPTXFSIZ exact power on value */
-	gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-	gusbcfg |= GUSBCFG_FORCEHOSTMODE;
-	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
-	usleep_range(100000, 150000);
+	/*
+	 * Host specific hardware parameters. Reading these parameters
+	 * requires the controller to be in host mode. The mode will
+	 * be forced, if necessary, to read these values.
+	 */
+	dwc2_get_host_hwparams(hsotg);
+	dwc2_get_dev_hwparams(hsotg);
 
-	gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
-	hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
-	dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
-	dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz);
-	gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
-	gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
-	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
-	usleep_range(100000, 150000);
+	/* hwcfg1 */
+	hw->dev_ep_dirs = hwcfg1;
 
 	/* hwcfg2 */
 	hw->op_mode = (hwcfg2 & GHWCFG2_OP_MODE_MASK) >>
@@ -3163,10 +3389,6 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
 	/* fifo sizes */
 	hw->host_rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >>
 				GRXFSIZ_DEPTH_SHIFT;
-	hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >>
-				       FIFOSIZE_DEPTH_SHIFT;
-	hw->host_perio_tx_fifo_size = (hptxfsiz & FIFOSIZE_DEPTH_MASK) >>
-				      FIFOSIZE_DEPTH_SHIFT;
 
 	dev_dbg(hsotg->dev, "Detected values from hardware:\n");
 	dev_dbg(hsotg->dev, "  op_mode=%d\n",
@@ -3275,6 +3497,43 @@ void dwc2_disable_global_interrupts(struct dwc2_hsotg *hsotg)
 	dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG);
 }
 
+/* Returns the controller's GHWCFG2.OTG_MODE. */
+unsigned dwc2_op_mode(struct dwc2_hsotg *hsotg)
+{
+	u32 ghwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2);
+
+	return (ghwcfg2 & GHWCFG2_OP_MODE_MASK) >>
+		GHWCFG2_OP_MODE_SHIFT;
+}
+
+/* Returns true if the controller is capable of DRD. */
+bool dwc2_hw_is_otg(struct dwc2_hsotg *hsotg)
+{
+	unsigned op_mode = dwc2_op_mode(hsotg);
+
+	return (op_mode == GHWCFG2_OP_MODE_HNP_SRP_CAPABLE) ||
+		(op_mode == GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE) ||
+		(op_mode == GHWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE);
+}
+
+/* Returns true if the controller is host-only. */
+bool dwc2_hw_is_host(struct dwc2_hsotg *hsotg)
+{
+	unsigned op_mode = dwc2_op_mode(hsotg);
+
+	return (op_mode == GHWCFG2_OP_MODE_SRP_CAPABLE_HOST) ||
+		(op_mode == GHWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST);
+}
+
+/* Returns true if the controller is device-only. */
+bool dwc2_hw_is_device(struct dwc2_hsotg *hsotg)
+{
+	unsigned op_mode = dwc2_op_mode(hsotg);
+
+	return (op_mode == GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE) ||
+		(op_mode == GHWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE);
+}
+
 MODULE_DESCRIPTION("DESIGNWARE HS OTG Core");
 MODULE_AUTHOR("Synopsys, Inc.");
 MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index a66d3cb62b65..7fb6434f4639 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -246,6 +246,13 @@ enum dwc2_ep0_state {
  *                      value for this if none is specified.
  *                       0 - Address DMA
  *                       1 - Descriptor DMA (default, if available)
+ * @dma_desc_fs_enable: When DMA mode is enabled, specifies whether to use
+ *                      address DMA mode or descriptor DMA mode for accessing
+ *                      the data FIFOs in Full Speed mode only. The driver
+ *                      will automatically detect the value for this if none is
+ *                      specified.
+ *                       0 - Address DMA
+ *                       1 - Descriptor DMA in FS (default, if available)
  * @speed:              Specifies the maximum speed of operation in host and
  *                      device mode. The actual speed depends on the speed of
  *                      the attached device and the value of phy_type.
@@ -375,6 +382,7 @@ struct dwc2_core_params {
 	int otg_ver;
 	int dma_enable;
 	int dma_desc_enable;
+	int dma_desc_fs_enable;
 	int speed;
 	int enable_dynamic_fifo;
 	int en_multiple_tx_fifo;
@@ -451,15 +459,18 @@ struct dwc2_core_params {
  *                       1 - 16 bits
  *                       2 - 8 or 16 bits
  * @snpsid:             Value from SNPSID register
+ * @dev_ep_dirs:        Direction of device endpoints (GHWCFG1)
  */
 struct dwc2_hw_params {
 	unsigned op_mode:3;
 	unsigned arch:2;
 	unsigned dma_desc_enable:1;
+	unsigned dma_desc_fs_enable:1;
 	unsigned enable_dynamic_fifo:1;
 	unsigned en_multiple_tx_fifo:1;
 	unsigned host_rx_fifo_size:16;
 	unsigned host_nperio_tx_fifo_size:16;
+	unsigned dev_nperio_tx_fifo_size:16;
 	unsigned host_perio_tx_fifo_size:16;
 	unsigned nperio_tx_q_depth:3;
 	unsigned host_perio_tx_q_depth:3;
@@ -476,6 +487,7 @@ struct dwc2_hw_params {
 	unsigned power_optimized:1;
 	unsigned utmi_phy_data_width:2;
 	u32 snpsid;
+	u32 dev_ep_dirs;
 };
 
 /* Size of control and EP0 buffers */
@@ -676,6 +688,9 @@ struct dwc2_hregs_backup {
  * @otg_port:           OTG port number
  * @frame_list:         Frame list
  * @frame_list_dma:     Frame list DMA address
+ * @frame_list_sz:      Frame list size
+ * @desc_gen_cache:     Kmem cache for generic descriptors
+ * @desc_hsisoc_cache:  Kmem cache for hs isochronous descriptors
  *
  * These are for peripheral mode:
  *
@@ -770,6 +785,7 @@ struct dwc2_hsotg {
 	u16 frame_number;
 	u16 periodic_qh_count;
 	bool bus_suspended;
+	bool new_connection;
 
 #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
 #define FRAME_NUM_ARRAY_SIZE 1000
@@ -794,6 +810,9 @@ struct dwc2_hsotg {
 	u8 otg_port;
 	u32 *frame_list;
 	dma_addr_t frame_list_dma;
+	u32 frame_list_sz;
+	struct kmem_cache *desc_gen_cache;
+	struct kmem_cache *desc_hsisoc_cache;
 
 #ifdef DEBUG
 	u32 frrem_samples;
@@ -864,10 +883,14 @@ enum dwc2_halt_status {
  * The following functions support initialization of the core driver component
  * and the DWC_otg controller
  */
+extern int dwc2_core_reset(struct dwc2_hsotg *hsotg);
+extern int dwc2_core_reset_and_force_dr_mode(struct dwc2_hsotg *hsotg);
 extern void dwc2_core_host_init(struct dwc2_hsotg *hsotg);
 extern int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg);
 extern int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore);
 
+void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg);
+
 /*
  * Host core Functions.
  * The following functions support managing the DWC_otg controller in host
@@ -901,7 +924,7 @@ extern void dwc2_read_packet(struct dwc2_hsotg *hsotg, u8 *dest, u16 bytes);
 extern void dwc2_flush_tx_fifo(struct dwc2_hsotg *hsotg, const int num);
 extern void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg);
 
-extern int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq);
+extern int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup);
 extern void dwc2_enable_global_interrupts(struct dwc2_hsotg *hcd);
 extern void dwc2_disable_global_interrupts(struct dwc2_hsotg *hcd);
 
@@ -942,6 +965,16 @@ extern void dwc2_set_param_dma_enable(struct dwc2_hsotg *hsotg, int val);
 extern void dwc2_set_param_dma_desc_enable(struct dwc2_hsotg *hsotg, int val);
 
 /*
+ * When DMA mode is enabled specifies whether to use
+ * address DMA or DMA Descritor mode with full speed devices
+ * for accessing the data FIFOs in host mode.
+ * 0 - address DMA
+ * 1 - FS DMA Descriptor(default, if available)
+ */
+extern void dwc2_set_param_dma_desc_fs_enable(struct dwc2_hsotg *hsotg,
+					      int val);
+
+/*
  * Specifies the maximum speed of operation in host and device mode.
  * The actual speed depends on the speed of the attached device and
  * the value of phy_type. The actual speed depends on the speed of the
@@ -1110,6 +1143,31 @@ extern int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg);
 extern int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg);
 
 /*
+ * The following functions check the controller's OTG operation mode
+ * capability (GHWCFG2.OTG_MODE).
+ *
+ * These functions can be used before the internal hsotg->hw_params
+ * are read in and cached so they always read directly from the
+ * GHWCFG2 register.
+ */
+unsigned dwc2_op_mode(struct dwc2_hsotg *hsotg);
+bool dwc2_hw_is_otg(struct dwc2_hsotg *hsotg);
+bool dwc2_hw_is_host(struct dwc2_hsotg *hsotg);
+bool dwc2_hw_is_device(struct dwc2_hsotg *hsotg);
+
+/*
+ * Returns the mode of operation, host or device
+ */
+static inline int dwc2_is_host_mode(struct dwc2_hsotg *hsotg)
+{
+	return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) != 0;
+}
+static inline int dwc2_is_device_mode(struct dwc2_hsotg *hsotg)
+{
+	return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) == 0;
+}
+
+/*
  * Dump core registers and SPRAM
  */
 extern void dwc2_dump_dev_registers(struct dwc2_hsotg *hsotg);
@@ -1154,12 +1212,14 @@ static inline int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg,
 
 #if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
 extern int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg);
-extern void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg);
+extern void dwc2_hcd_connect(struct dwc2_hsotg *hsotg);
+extern void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force);
 extern void dwc2_hcd_start(struct dwc2_hsotg *hsotg);
 #else
 static inline int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg)
 { return 0; }
-static inline void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_hcd_connect(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force) {}
 static inline void dwc2_hcd_start(struct dwc2_hsotg *hsotg) {}
 static inline void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) {}
 static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index 27daa42788b1..d85c5c9f96c1 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -86,9 +86,6 @@ static void dwc2_handle_usb_port_intr(struct dwc2_hsotg *hsotg)
 		hprt0 &= ~HPRT0_ENA;
 		dwc2_writel(hprt0, hsotg->regs + HPRT0);
 	}
-
-	/* Clear interrupt */
-	dwc2_writel(GINTSTS_PRTINT, hsotg->regs + GINTSTS);
 }
 
 /**
@@ -98,11 +95,11 @@ static void dwc2_handle_usb_port_intr(struct dwc2_hsotg *hsotg)
  */
 static void dwc2_handle_mode_mismatch_intr(struct dwc2_hsotg *hsotg)
 {
-	dev_warn(hsotg->dev, "Mode Mismatch Interrupt: currently in %s mode\n",
-		 dwc2_is_host_mode(hsotg) ? "Host" : "Device");
-
 	/* Clear interrupt */
 	dwc2_writel(GINTSTS_MODEMIS, hsotg->regs + GINTSTS);
+
+	dev_warn(hsotg->dev, "Mode Mismatch Interrupt: currently in %s mode\n",
+		 dwc2_is_host_mode(hsotg) ? "Host" : "Device");
 }
 
 /**
@@ -239,7 +236,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
 			dev_dbg(hsotg->dev, "a_suspend->a_peripheral (%d)\n",
 				hsotg->op_state);
 			spin_unlock(&hsotg->lock);
-			dwc2_hcd_disconnect(hsotg);
+			dwc2_hcd_disconnect(hsotg, false);
 			spin_lock(&hsotg->lock);
 			hsotg->op_state = OTG_STATE_A_PERIPHERAL;
 		} else {
@@ -276,9 +273,13 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
  */
 static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
 {
-	u32 gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
+	u32 gintmsk;
+
+	/* Clear interrupt */
+	dwc2_writel(GINTSTS_CONIDSTSCHNG, hsotg->regs + GINTSTS);
 
 	/* Need to disable SOF interrupt immediately */
+	gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
 	gintmsk &= ~GINTSTS_SOF;
 	dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
 
@@ -295,9 +296,6 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
 		queue_work(hsotg->wq_otg, &hsotg->wf_otg);
 		spin_lock(&hsotg->lock);
 	}
-
-	/* Clear interrupt */
-	dwc2_writel(GINTSTS_CONIDSTSCHNG, hsotg->regs + GINTSTS);
 }
 
 /**
@@ -315,12 +313,12 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
 {
 	int ret;
 
-	dev_dbg(hsotg->dev, "Session request interrupt - lx_state=%d\n",
-							hsotg->lx_state);
-
 	/* Clear interrupt */
 	dwc2_writel(GINTSTS_SESSREQINT, hsotg->regs + GINTSTS);
 
+	dev_dbg(hsotg->dev, "Session request interrupt - lx_state=%d\n",
+							hsotg->lx_state);
+
 	if (dwc2_is_device_mode(hsotg)) {
 		if (hsotg->lx_state == DWC2_L2) {
 			ret = dwc2_exit_hibernation(hsotg, true);
@@ -347,6 +345,10 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
 static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
 {
 	int ret;
+
+	/* Clear interrupt */
+	dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
+
 	dev_dbg(hsotg->dev, "++Resume or Remote Wakeup Detected Interrupt++\n");
 	dev_dbg(hsotg->dev, "%s lxstate = %d\n", __func__, hsotg->lx_state);
 
@@ -368,10 +370,9 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
 		/* Change to L0 state */
 		hsotg->lx_state = DWC2_L0;
 	} else {
-		if (hsotg->core_params->hibernation) {
-			dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
+		if (hsotg->core_params->hibernation)
 			return;
-		}
+
 		if (hsotg->lx_state != DWC2_L1) {
 			u32 pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
 
@@ -385,9 +386,6 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
 			hsotg->lx_state = DWC2_L0;
 		}
 	}
-
-	/* Clear interrupt */
-	dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
 }
 
 /*
@@ -396,14 +394,14 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
  */
 static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
 {
+	dwc2_writel(GINTSTS_DISCONNINT, hsotg->regs + GINTSTS);
+
 	dev_dbg(hsotg->dev, "++Disconnect Detected Interrupt++ (%s) %s\n",
 		dwc2_is_host_mode(hsotg) ? "Host" : "Device",
 		dwc2_op_state_str(hsotg));
 
 	if (hsotg->op_state == OTG_STATE_A_HOST)
-		dwc2_hcd_disconnect(hsotg);
-
-	dwc2_writel(GINTSTS_DISCONNINT, hsotg->regs + GINTSTS);
+		dwc2_hcd_disconnect(hsotg, false);
 }
 
 /*
@@ -419,6 +417,9 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
 	u32 dsts;
 	int ret;
 
+	/* Clear interrupt */
+	dwc2_writel(GINTSTS_USBSUSP, hsotg->regs + GINTSTS);
+
 	dev_dbg(hsotg->dev, "USB SUSPEND\n");
 
 	if (dwc2_is_device_mode(hsotg)) {
@@ -437,7 +438,7 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
 			if (!dwc2_is_device_connected(hsotg)) {
 				dev_dbg(hsotg->dev,
 						"ignore suspend request before enumeration\n");
-				goto clear_int;
+				return;
 			}
 
 			ret = dwc2_enter_hibernation(hsotg);
@@ -476,10 +477,6 @@ skip_power_saving:
 			hsotg->op_state = OTG_STATE_A_HOST;
 		}
 	}
-
-clear_int:
-	/* Clear interrupt */
-	dwc2_writel(GINTSTS_USBSUSP, hsotg->regs + GINTSTS);
 }
 
 #define GINTMSK_COMMON	(GINTSTS_WKUPINT | GINTSTS_SESSREQINT |		\
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 0abf73c91beb..422ab7da4eb5 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2095,7 +2095,7 @@ static void dwc2_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)
 	 */
 
 	/* catch both EnumSpd_FS and EnumSpd_FS48 */
-	switch (dsts & DSTS_ENUMSPD_MASK) {
+	switch ((dsts & DSTS_ENUMSPD_MASK) >> DSTS_ENUMSPD_SHIFT) {
 	case DSTS_ENUMSPD_FS:
 	case DSTS_ENUMSPD_FS48:
 		hsotg->gadget.speed = USB_SPEED_FULL;
@@ -2244,54 +2244,6 @@ static void dwc2_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
 			GINTSTS_RXFLVL)
 
 /**
- * dwc2_hsotg_corereset - issue softreset to the core
- * @hsotg: The device state
- *
- * Issue a soft reset to the core, and await the core finishing it.
- */
-static int dwc2_hsotg_corereset(struct dwc2_hsotg *hsotg)
-{
-	int timeout;
-	u32 grstctl;
-
-	dev_dbg(hsotg->dev, "resetting core\n");
-
-	/* issue soft reset */
-	dwc2_writel(GRSTCTL_CSFTRST, hsotg->regs + GRSTCTL);
-
-	timeout = 10000;
-	do {
-		grstctl = dwc2_readl(hsotg->regs + GRSTCTL);
-	} while ((grstctl & GRSTCTL_CSFTRST) && timeout-- > 0);
-
-	if (grstctl & GRSTCTL_CSFTRST) {
-		dev_err(hsotg->dev, "Failed to get CSftRst asserted\n");
-		return -EINVAL;
-	}
-
-	timeout = 10000;
-
-	while (1) {
-		u32 grstctl = dwc2_readl(hsotg->regs + GRSTCTL);
-
-		if (timeout-- < 0) {
-			dev_info(hsotg->dev,
-				 "%s: reset failed, GRSTCTL=%08x\n",
-				 __func__, grstctl);
-			return -ETIMEDOUT;
-		}
-
-		if (!(grstctl & GRSTCTL_AHBIDLE))
-			continue;
-
-		break;		/* reset done */
-	}
-
-	dev_dbg(hsotg->dev, "reset successful\n");
-	return 0;
-}
-
-/**
  * dwc2_hsotg_core_init - issue softreset to the core
  * @hsotg: The device state
  *
@@ -2307,7 +2259,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
 	kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);
 
 	if (!is_usb_reset)
-		if (dwc2_hsotg_corereset(hsotg))
+		if (dwc2_core_reset(hsotg))
 			return;
 
 	/*
@@ -2585,7 +2537,7 @@ irq_retry:
 	if (gintsts & GINTSTS_GOUTNAKEFF) {
 		dev_info(hsotg->dev, "GOUTNakEff triggered\n");
 
-		dwc2_writel(DCTL_CGOUTNAK, hsotg->regs + DCTL);
+		__orr32(hsotg->regs + DCTL, DCTL_CGOUTNAK);
 
 		dwc2_hsotg_dump(hsotg);
 	}
@@ -2593,7 +2545,7 @@ irq_retry:
 	if (gintsts & GINTSTS_GINNAKEFF) {
 		dev_info(hsotg->dev, "GINNakEff triggered\n");
 
-		dwc2_writel(DCTL_CGNPINNAK, hsotg->regs + DCTL);
+		__orr32(hsotg->regs + DCTL, DCTL_CGNPINNAK);
 
 		dwc2_hsotg_dump(hsotg);
 	}
@@ -2911,15 +2863,15 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,
 				"%s: timeout DIEPINT.NAKEFF\n", __func__);
 	} else {
 		/* Clear any pending nak effect interrupt */
-		dwc2_writel(GINTSTS_GINNAKEFF, hsotg->regs + GINTSTS);
+		dwc2_writel(GINTSTS_GOUTNAKEFF, hsotg->regs + GINTSTS);
 
-		__orr32(hsotg->regs + DCTL, DCTL_SGNPINNAK);
+		__orr32(hsotg->regs + DCTL, DCTL_SGOUTNAK);
 
 		/* Wait for global nak to take effect */
 		if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS,
-						GINTSTS_GINNAKEFF, 100))
+						GINTSTS_GOUTNAKEFF, 100))
 			dev_warn(hsotg->dev,
-				"%s: timeout GINTSTS.GINNAKEFF\n", __func__);
+				"%s: timeout GINTSTS.GOUTNAKEFF\n", __func__);
 	}
 
 	/* Disable ep */
@@ -2944,7 +2896,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,
 		/* TODO: Flush shared tx fifo */
 	} else {
 		/* Remove global NAKs */
-		__bic32(hsotg->regs + DCTL, DCTL_SGNPINNAK);
+		__bic32(hsotg->regs + DCTL, DCTL_SGOUTNAK);
 	}
 }
 
@@ -3403,8 +3355,8 @@ static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
 
 	/* check hardware configuration */
 
-	cfg = dwc2_readl(hsotg->regs + GHWCFG2);
-	hsotg->num_of_eps = (cfg >> GHWCFG2_NUM_DEV_EP_SHIFT) & 0xF;
+	hsotg->num_of_eps = hsotg->hw_params.num_dev_ep;
+
 	/* Add ep0 */
 	hsotg->num_of_eps++;
 
@@ -3415,7 +3367,7 @@ static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
 	/* Same dwc2_hsotg_ep is used in both directions for ep0 */
 	hsotg->eps_out[0] = hsotg->eps_in[0];
 
-	cfg = dwc2_readl(hsotg->regs + GHWCFG1);
+	cfg = hsotg->hw_params.dev_ep_dirs;
 	for (i = 1, cfg >>= 2; i < hsotg->num_of_eps; i++, cfg >>= 2) {
 		ep_type = cfg & 3;
 		/* Direction in or both */
@@ -3434,11 +3386,8 @@ static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
 		}
 	}
 
-	cfg = dwc2_readl(hsotg->regs + GHWCFG3);
-	hsotg->fifo_mem = (cfg >> GHWCFG3_DFIFO_DEPTH_SHIFT);
-
-	cfg = dwc2_readl(hsotg->regs + GHWCFG4);
-	hsotg->dedicated_fifos = (cfg >> GHWCFG4_DED_FIFO_SHIFT) & 1;
+	hsotg->fifo_mem = hsotg->hw_params.total_fifo_size;
+	hsotg->dedicated_fifos = hsotg->hw_params.en_multiple_tx_fifo;
 
 	dev_info(hsotg->dev, "EPs: %d, %s fifos, %d entries in SPRAM\n",
 		 hsotg->num_of_eps,
@@ -3563,6 +3512,17 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
 	memcpy(&hsotg->g_tx_fifo_sz[1], p_tx_fifo, sizeof(p_tx_fifo));
 	/* Device tree specific probe */
 	dwc2_hsotg_of_probe(hsotg);
+
+	/* Check against largest possible value. */
+	if (hsotg->g_np_g_tx_fifo_sz >
+	    hsotg->hw_params.dev_nperio_tx_fifo_size) {
+		dev_warn(dev, "Specified GNPTXFDEP=%d > %d\n",
+			 hsotg->g_np_g_tx_fifo_sz,
+			 hsotg->hw_params.dev_nperio_tx_fifo_size);
+		hsotg->g_np_g_tx_fifo_sz =
+			hsotg->hw_params.dev_nperio_tx_fifo_size;
+	}
+
 	/* Dump fifo information */
 	dev_dbg(dev, "NonPeriodic TXFIFO size: %d\n",
 						hsotg->g_np_g_tx_fifo_sz);
@@ -3579,31 +3539,12 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
 	else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
 		hsotg->op_state = OTG_STATE_B_PERIPHERAL;
 
-	/*
-	 * Force Device mode before initialization.
-	 * This allows correctly configuring fifo for device mode.
-	 */
-	__bic32(hsotg->regs + GUSBCFG, GUSBCFG_FORCEHOSTMODE);
-	__orr32(hsotg->regs + GUSBCFG, GUSBCFG_FORCEDEVMODE);
-
-	/*
-	 * According to Synopsys databook, this sleep is needed for the force
-	 * device mode to take effect.
-	 */
-	msleep(25);
-
-	dwc2_hsotg_corereset(hsotg);
 	ret = dwc2_hsotg_hw_cfg(hsotg);
 	if (ret) {
 		dev_err(hsotg->dev, "Hardware configuration failed: %d\n", ret);
 		return ret;
 	}
 
-	dwc2_hsotg_init(hsotg);
-
-	/* Switch back to default configuration */
-	__bic32(hsotg->regs + GUSBCFG, GUSBCFG_FORCEDEVMODE);
-
 	hsotg->ctrl_buff = devm_kzalloc(hsotg->dev,
 			DWC2_CTRL_BUFF_SIZE, GFP_KERNEL);
 	if (!hsotg->ctrl_buff) {
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 571c21727ff9..8847c72e55f6 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -268,15 +268,33 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg)
 }
 
 /**
+ * dwc2_hcd_connect() - Handles connect of the HCD
+ *
+ * @hsotg: Pointer to struct dwc2_hsotg
+ *
+ * Must be called with interrupt disabled and spinlock held
+ */
+void dwc2_hcd_connect(struct dwc2_hsotg *hsotg)
+{
+	if (hsotg->lx_state != DWC2_L0)
+		usb_hcd_resume_root_hub(hsotg->priv);
+
+	hsotg->flags.b.port_connect_status_change = 1;
+	hsotg->flags.b.port_connect_status = 1;
+}
+
+/**
  * dwc2_hcd_disconnect() - Handles disconnect of the HCD
  *
  * @hsotg: Pointer to struct dwc2_hsotg
+ * @force: If true, we won't try to reconnect even if we see device connected.
  *
  * Must be called with interrupt disabled and spinlock held
  */
-void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg)
+void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force)
 {
 	u32 intr;
+	u32 hprt0;
 
 	/* Set status flags for the hub driver */
 	hsotg->flags.b.port_connect_status_change = 1;
@@ -315,6 +333,24 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg)
 		dwc2_hcd_cleanup_channels(hsotg);
 
 	dwc2_host_disconnect(hsotg);
+
+	/*
+	 * Add an extra check here to see if we're actually connected but
+	 * we don't have a detection interrupt pending.  This can happen if:
+	 *   1. hardware sees connect
+	 *   2. hardware sees disconnect
+	 *   3. hardware sees connect
+	 *   4. dwc2_port_intr() - clears connect interrupt
+	 *   5. dwc2_handle_common_intr() - calls here
+	 *
+	 * Without the extra check here we will end calling disconnect
+	 * and won't get any future interrupts to handle the connect.
+	 */
+	if (!force) {
+		hprt0 = dwc2_readl(hsotg->regs + HPRT0);
+		if (!(hprt0 & HPRT0_CONNDET) && (hprt0 & HPRT0_CONNSTS))
+			dwc2_hcd_connect(hsotg);
+	}
 }
 
 /**
@@ -881,8 +917,10 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 		 */
 		chan->multi_count = dwc2_hb_mult(qh->maxp);
 
-	if (hsotg->core_params->dma_desc_enable > 0)
+	if (hsotg->core_params->dma_desc_enable > 0) {
 		chan->desc_list_addr = qh->desc_list_dma;
+		chan->desc_list_sz = qh->desc_list_sz;
+	}
 
 	dwc2_hc_init(hsotg, chan);
 	chan->qh = qh;
@@ -1382,7 +1420,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
 			dev_err(hsotg->dev,
 				"Connection id status change timed out\n");
 		hsotg->op_state = OTG_STATE_B_PERIPHERAL;
-		dwc2_core_init(hsotg, false, -1);
+		dwc2_core_init(hsotg, false);
 		dwc2_enable_global_interrupts(hsotg);
 		spin_lock_irqsave(&hsotg->lock, flags);
 		dwc2_hsotg_core_init_disconnected(hsotg, false);
@@ -1405,7 +1443,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
 		hsotg->op_state = OTG_STATE_A_HOST;
 
 		/* Initialize the Core for Host mode */
-		dwc2_core_init(hsotg, false, -1);
+		dwc2_core_init(hsotg, false);
 		dwc2_enable_global_interrupts(hsotg);
 		dwc2_hcd_start(hsotg);
 	}
@@ -1734,6 +1772,28 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
 			port_status |= USB_PORT_STAT_TEST;
 		/* USB_PORT_FEAT_INDICATOR unsupported always 0 */
 
+		if (hsotg->core_params->dma_desc_fs_enable) {
+			/*
+			 * Enable descriptor DMA only if a full speed
+			 * device is connected.
+			 */
+			if (hsotg->new_connection &&
+			    ((port_status &
+			      (USB_PORT_STAT_CONNECTION |
+			       USB_PORT_STAT_HIGH_SPEED |
+			       USB_PORT_STAT_LOW_SPEED)) ==
+			       USB_PORT_STAT_CONNECTION)) {
+				u32 hcfg;
+
+				dev_info(hsotg->dev, "Enabling descriptor DMA mode\n");
+				hsotg->core_params->dma_desc_enable = 1;
+				hcfg = dwc2_readl(hsotg->regs + HCFG);
+				hcfg |= HCFG_DESCDMA;
+				dwc2_writel(hcfg, hsotg->regs + HCFG);
+				hsotg->new_connection = false;
+			}
+		}
+
 		dev_vdbg(hsotg->dev, "port_status=%08x\n", port_status);
 		*(__le32 *)buf = cpu_to_le32(port_status);
 		break;
@@ -2298,13 +2358,19 @@ static void dwc2_hcd_reset_func(struct work_struct *work)
 {
 	struct dwc2_hsotg *hsotg = container_of(work, struct dwc2_hsotg,
 						reset_work.work);
+	unsigned long flags;
 	u32 hprt0;
 
 	dev_dbg(hsotg->dev, "USB RESET function called\n");
+
+	spin_lock_irqsave(&hsotg->lock, flags);
+
 	hprt0 = dwc2_read_hprt0(hsotg);
 	hprt0 &= ~HPRT0_RST;
 	dwc2_writel(hprt0, hsotg->regs + HPRT0);
 	hsotg->flags.b.port_reset_change = 1;
+
+	spin_unlock_irqrestore(&hsotg->lock, flags);
 }
 
 /*
@@ -2366,7 +2432,7 @@ static void _dwc2_hcd_stop(struct usb_hcd *hcd)
 
 	spin_lock_irqsave(&hsotg->lock, flags);
 	/* Ensure hcd is disconnected */
-	dwc2_hcd_disconnect(hsotg);
+	dwc2_hcd_disconnect(hsotg, true);
 	dwc2_hcd_stop(hsotg);
 	hsotg->lx_state = DWC2_L3;
 	hcd->state = HC_STATE_HALT;
@@ -3054,7 +3120,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
 	dwc2_disable_global_interrupts(hsotg);
 
 	/* Initialize the DWC_otg core, and select the Phy type */
-	retval = dwc2_core_init(hsotg, true, irq);
+	retval = dwc2_core_init(hsotg, true);
 	if (retval)
 		goto error2;
 
@@ -3122,6 +3188,47 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
 	if (!hsotg->status_buf)
 		goto error3;
 
+	/*
+	 * Create kmem caches to handle descriptor buffers in descriptor
+	 * DMA mode.
+	 * Alignment must be set to 512 bytes.
+	 */
+	if (hsotg->core_params->dma_desc_enable ||
+	    hsotg->core_params->dma_desc_fs_enable) {
+		hsotg->desc_gen_cache = kmem_cache_create("dwc2-gen-desc",
+				sizeof(struct dwc2_hcd_dma_desc) *
+				MAX_DMA_DESC_NUM_GENERIC, 512, SLAB_CACHE_DMA,
+				NULL);
+		if (!hsotg->desc_gen_cache) {
+			dev_err(hsotg->dev,
+				"unable to create dwc2 generic desc cache\n");
+
+			/*
+			 * Disable descriptor dma mode since it will not be
+			 * usable.
+			 */
+			hsotg->core_params->dma_desc_enable = 0;
+			hsotg->core_params->dma_desc_fs_enable = 0;
+		}
+
+		hsotg->desc_hsisoc_cache = kmem_cache_create("dwc2-hsisoc-desc",
+				sizeof(struct dwc2_hcd_dma_desc) *
+				MAX_DMA_DESC_NUM_HS_ISOC, 512, 0, NULL);
+		if (!hsotg->desc_hsisoc_cache) {
+			dev_err(hsotg->dev,
+				"unable to create dwc2 hs isoc desc cache\n");
+
+			kmem_cache_destroy(hsotg->desc_gen_cache);
+
+			/*
+			 * Disable descriptor dma mode since it will not be
+			 * usable.
+			 */
+			hsotg->core_params->dma_desc_enable = 0;
+			hsotg->core_params->dma_desc_fs_enable = 0;
+		}
+	}
+
 	hsotg->otg_port = 1;
 	hsotg->frame_list = NULL;
 	hsotg->frame_list_dma = 0;
@@ -3145,7 +3252,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
 	 */
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval < 0)
-		goto error3;
+		goto error4;
 
 	device_wakeup_enable(hcd->self.controller);
 
@@ -3155,6 +3262,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
 
 	return 0;
 
+error4:
+	kmem_cache_destroy(hsotg->desc_gen_cache);
+	kmem_cache_destroy(hsotg->desc_hsisoc_cache);
 error3:
 	dwc2_hcd_release(hsotg);
 error2:
@@ -3195,6 +3305,10 @@ void dwc2_hcd_remove(struct dwc2_hsotg *hsotg)
 
 	usb_remove_hcd(hcd);
 	hsotg->priv = NULL;
+
+	kmem_cache_destroy(hsotg->desc_gen_cache);
+	kmem_cache_destroy(hsotg->desc_hsisoc_cache);
+
 	dwc2_hcd_release(hsotg);
 	usb_put_hcd(hcd);
 
diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h
index f105bada2fd1..8f0a29cefdf7 100644
--- a/drivers/usb/dwc2/hcd.h
+++ b/drivers/usb/dwc2/hcd.h
@@ -107,6 +107,7 @@ struct dwc2_qh;
  * @qh:                 QH for the transfer being processed by this channel
  * @hc_list_entry:      For linking to list of host channels
  * @desc_list_addr:     Current QH's descriptor list DMA address
+ * @desc_list_sz:       Current QH's descriptor list size
  *
  * This structure represents the state of a single host channel when acting in
  * host mode. It contains the data items needed to transfer packets to an
@@ -159,6 +160,7 @@ struct dwc2_host_chan {
 	struct dwc2_qh *qh;
 	struct list_head hc_list_entry;
 	dma_addr_t desc_list_addr;
+	u32 desc_list_sz;
 };
 
 struct dwc2_hcd_pipe_info {
@@ -251,6 +253,7 @@ enum dwc2_transaction_type {
  *                      schedule
  * @desc_list:          List of transfer descriptors
  * @desc_list_dma:      Physical address of desc_list
+ * @desc_list_sz:       Size of descriptors list
  * @n_bytes:            Xfer Bytes array. Each element corresponds to a transfer
  *                      descriptor and indicates original XferSize value for the
  *                      descriptor
@@ -284,6 +287,7 @@ struct dwc2_qh {
 	struct list_head qh_list_entry;
 	struct dwc2_hcd_dma_desc *desc_list;
 	dma_addr_t desc_list_dma;
+	u32 desc_list_sz;
 	u32 *n_bytes;
 	unsigned tt_buffer_dirty:1;
 };
@@ -340,6 +344,8 @@ struct dwc2_qtd {
 	u8 isoc_split_pos;
 	u16 isoc_frame_index;
 	u16 isoc_split_offset;
+	u16 isoc_td_last;
+	u16 isoc_td_first;
 	u32 ssplit_out_xfer_count;
 	u8 error_count;
 	u8 n_desc;
@@ -378,18 +384,6 @@ static inline void disable_hc_int(struct dwc2_hsotg *hsotg, int chnum, u32 intr)
 }
 
 /*
- * Returns the mode of operation, host or device
- */
-static inline int dwc2_is_host_mode(struct dwc2_hsotg *hsotg)
-{
-	return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) != 0;
-}
-static inline int dwc2_is_device_mode(struct dwc2_hsotg *hsotg)
-{
-	return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) == 0;
-}
-
-/*
  * Reads HPRT0 in preparation to modify. It keeps the WC bits 0 so that if they
  * are read as 1, they won't clear when written back.
  */
@@ -535,6 +529,19 @@ static inline bool dbg_perio(void) { return false; }
 #define dwc2_max_packet(wmaxpacketsize) ((wmaxpacketsize) & 0x07ff)
 
 /*
+ * Returns true if frame1 index is greater than frame2 index. The comparison
+ * is done modulo FRLISTEN_64_SIZE. This accounts for the rollover of the
+ * frame number when the max index frame number is reached.
+ */
+static inline bool dwc2_frame_idx_num_gt(u16 fr_idx1, u16 fr_idx2)
+{
+	u16 diff = fr_idx1 - fr_idx2;
+	u16 sign = diff & (FRLISTEN_64_SIZE >> 1);
+
+	return diff && !sign;
+}
+
+/*
  * Returns true if frame1 is less than or equal to frame2. The comparison is
  * done modulo HFNUM_MAX_FRNUM. This accounts for the rollover of the
  * frame number when the max frame number is reached.
diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c
index 78993aba9335..36606fc33c0d 100644
--- a/drivers/usb/dwc2/hcd_ddma.c
+++ b/drivers/usb/dwc2/hcd_ddma.c
@@ -87,22 +87,31 @@ static u16 dwc2_frame_incr_val(struct dwc2_qh *qh)
 static int dwc2_desc_list_alloc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
 				gfp_t flags)
 {
-	qh->desc_list = dma_alloc_coherent(hsotg->dev,
-				sizeof(struct dwc2_hcd_dma_desc) *
-				dwc2_max_desc_num(qh), &qh->desc_list_dma,
-				flags);
+	struct kmem_cache *desc_cache;
 
+	if (qh->ep_type == USB_ENDPOINT_XFER_ISOC
+	    && qh->dev_speed == USB_SPEED_HIGH)
+		desc_cache = hsotg->desc_hsisoc_cache;
+	else
+		desc_cache = hsotg->desc_gen_cache;
+
+	qh->desc_list_sz = sizeof(struct dwc2_hcd_dma_desc) *
+						dwc2_max_desc_num(qh);
+
+	qh->desc_list = kmem_cache_zalloc(desc_cache, flags | GFP_DMA);
 	if (!qh->desc_list)
 		return -ENOMEM;
 
-	memset(qh->desc_list, 0,
-	       sizeof(struct dwc2_hcd_dma_desc) * dwc2_max_desc_num(qh));
+	qh->desc_list_dma = dma_map_single(hsotg->dev, qh->desc_list,
+					   qh->desc_list_sz,
+					   DMA_TO_DEVICE);
 
 	qh->n_bytes = kzalloc(sizeof(u32) * dwc2_max_desc_num(qh), flags);
 	if (!qh->n_bytes) {
-		dma_free_coherent(hsotg->dev, sizeof(struct dwc2_hcd_dma_desc)
-				  * dwc2_max_desc_num(qh), qh->desc_list,
-				  qh->desc_list_dma);
+		dma_unmap_single(hsotg->dev, qh->desc_list_dma,
+				 qh->desc_list_sz,
+				 DMA_FROM_DEVICE);
+		kfree(qh->desc_list);
 		qh->desc_list = NULL;
 		return -ENOMEM;
 	}
@@ -112,10 +121,18 @@ static int dwc2_desc_list_alloc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
 
 static void dwc2_desc_list_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 {
+	struct kmem_cache *desc_cache;
+
+	if (qh->ep_type == USB_ENDPOINT_XFER_ISOC
+	    && qh->dev_speed == USB_SPEED_HIGH)
+		desc_cache = hsotg->desc_hsisoc_cache;
+	else
+		desc_cache = hsotg->desc_gen_cache;
+
 	if (qh->desc_list) {
-		dma_free_coherent(hsotg->dev, sizeof(struct dwc2_hcd_dma_desc)
-				  * dwc2_max_desc_num(qh), qh->desc_list,
-				  qh->desc_list_dma);
+		dma_unmap_single(hsotg->dev, qh->desc_list_dma,
+				 qh->desc_list_sz, DMA_FROM_DEVICE);
+		kmem_cache_free(desc_cache, qh->desc_list);
 		qh->desc_list = NULL;
 	}
 
@@ -128,21 +145,20 @@ static int dwc2_frame_list_alloc(struct dwc2_hsotg *hsotg, gfp_t mem_flags)
 	if (hsotg->frame_list)
 		return 0;
 
-	hsotg->frame_list = dma_alloc_coherent(hsotg->dev,
-					       4 * FRLISTEN_64_SIZE,
-					       &hsotg->frame_list_dma,
-					       mem_flags);
+	hsotg->frame_list_sz = 4 * FRLISTEN_64_SIZE;
+	hsotg->frame_list = kzalloc(hsotg->frame_list_sz, GFP_ATOMIC | GFP_DMA);
 	if (!hsotg->frame_list)
 		return -ENOMEM;
 
-	memset(hsotg->frame_list, 0, 4 * FRLISTEN_64_SIZE);
+	hsotg->frame_list_dma = dma_map_single(hsotg->dev, hsotg->frame_list,
+					       hsotg->frame_list_sz,
+					       DMA_TO_DEVICE);
+
 	return 0;
 }
 
 static void dwc2_frame_list_free(struct dwc2_hsotg *hsotg)
 {
-	u32 *frame_list;
-	dma_addr_t frame_list_dma;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hsotg->lock, flags);
@@ -152,14 +168,14 @@ static void dwc2_frame_list_free(struct dwc2_hsotg *hsotg)
 		return;
 	}
 
-	frame_list = hsotg->frame_list;
-	frame_list_dma = hsotg->frame_list_dma;
+	dma_unmap_single(hsotg->dev, hsotg->frame_list_dma,
+			 hsotg->frame_list_sz, DMA_FROM_DEVICE);
+
+	kfree(hsotg->frame_list);
 	hsotg->frame_list = NULL;
 
 	spin_unlock_irqrestore(&hsotg->lock, flags);
 
-	dma_free_coherent(hsotg->dev, 4 * FRLISTEN_64_SIZE, frame_list,
-			  frame_list_dma);
 }
 
 static void dwc2_per_sched_enable(struct dwc2_hsotg *hsotg, u32 fr_list_en)
@@ -249,6 +265,15 @@ static void dwc2_update_frame_list(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
 		j = (j + inc) & (FRLISTEN_64_SIZE - 1);
 	} while (j != i);
 
+	/*
+	 * Sync frame list since controller will access it if periodic
+	 * channel is currently enabled.
+	 */
+	dma_sync_single_for_device(hsotg->dev,
+				   hsotg->frame_list_dma,
+				   hsotg->frame_list_sz,
+				   DMA_TO_DEVICE);
+
 	if (!enable)
 		return;
 
@@ -278,6 +303,7 @@ static void dwc2_release_channel_ddma(struct dwc2_hsotg *hsotg,
 			hsotg->non_periodic_channels--;
 	} else {
 		dwc2_update_frame_list(hsotg, qh, 0);
+		hsotg->available_host_channels++;
 	}
 
 	/*
@@ -360,6 +386,8 @@ err0:
  */
 void dwc2_hcd_qh_free_ddma(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 {
+	unsigned long flags;
+
 	dwc2_desc_list_free(hsotg, qh);
 
 	/*
@@ -369,8 +397,10 @@ void dwc2_hcd_qh_free_ddma(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 	 * when it comes here from endpoint disable routine
 	 * channel remains assigned.
 	 */
+	spin_lock_irqsave(&hsotg->lock, flags);
 	if (qh->channel)
 		dwc2_release_channel_ddma(hsotg, qh);
+	spin_unlock_irqrestore(&hsotg->lock, flags);
 
 	if ((qh->ep_type == USB_ENDPOINT_XFER_ISOC ||
 	     qh->ep_type == USB_ENDPOINT_XFER_INT) &&
@@ -524,14 +554,23 @@ static void dwc2_fill_host_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 	dma_desc->status = qh->n_bytes[idx] << HOST_DMA_ISOC_NBYTES_SHIFT &
 			   HOST_DMA_ISOC_NBYTES_MASK;
 
+	/* Set active bit */
+	dma_desc->status |= HOST_DMA_A;
+
+	qh->ntd++;
+	qtd->isoc_frame_index_last++;
+
 #ifdef ISOC_URB_GIVEBACK_ASAP
 	/* Set IOC for each descriptor corresponding to last frame of URB */
 	if (qtd->isoc_frame_index_last == qtd->urb->packet_count)
 		dma_desc->status |= HOST_DMA_IOC;
 #endif
 
-	qh->ntd++;
-	qtd->isoc_frame_index_last++;
+	dma_sync_single_for_device(hsotg->dev,
+			qh->desc_list_dma +
+			(idx * sizeof(struct dwc2_hcd_dma_desc)),
+			sizeof(struct dwc2_hcd_dma_desc),
+			DMA_TO_DEVICE);
 }
 
 static void dwc2_init_isoc_dma_desc(struct dwc2_hsotg *hsotg,
@@ -539,11 +578,32 @@ static void dwc2_init_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 {
 	struct dwc2_qtd *qtd;
 	u32 max_xfer_size;
-	u16 idx, inc, n_desc, ntd_max = 0;
+	u16 idx, inc, n_desc = 0, ntd_max = 0;
+	u16 cur_idx;
+	u16 next_idx;
 
 	idx = qh->td_last;
 	inc = qh->interval;
-	n_desc = 0;
+	hsotg->frame_number = dwc2_hcd_get_frame_number(hsotg);
+	cur_idx = dwc2_frame_list_idx(hsotg->frame_number);
+	next_idx = dwc2_desclist_idx_inc(qh->td_last, inc, qh->dev_speed);
+
+	/*
+	 * Ensure current frame number didn't overstep last scheduled
+	 * descriptor. If it happens, the only way to recover is to move
+	 * qh->td_last to current frame number + 1.
+	 * So that next isoc descriptor will be scheduled on frame number + 1
+	 * and not on a past frame.
+	 */
+	if (dwc2_frame_idx_num_gt(cur_idx, next_idx) || (cur_idx == next_idx)) {
+		if (inc < 32) {
+			dev_vdbg(hsotg->dev,
+				 "current frame number overstep last descriptor\n");
+			qh->td_last = dwc2_desclist_idx_inc(cur_idx, inc,
+							    qh->dev_speed);
+			idx = qh->td_last;
+		}
+	}
 
 	if (qh->interval) {
 		ntd_max = (dwc2_max_desc_num(qh) + qh->interval - 1) /
@@ -556,15 +616,20 @@ static void dwc2_init_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 			MAX_ISOC_XFER_SIZE_HS : MAX_ISOC_XFER_SIZE_FS;
 
 	list_for_each_entry(qtd, &qh->qtd_list, qtd_list_entry) {
+		if (qtd->in_process &&
+		    qtd->isoc_frame_index_last ==
+		    qtd->urb->packet_count)
+			continue;
+
+		qtd->isoc_td_first = idx;
 		while (qh->ntd < ntd_max && qtd->isoc_frame_index_last <
 						qtd->urb->packet_count) {
-			if (n_desc > 1)
-				qh->desc_list[n_desc - 1].status |= HOST_DMA_A;
 			dwc2_fill_host_isoc_dma_desc(hsotg, qtd, qh,
 						     max_xfer_size, idx);
 			idx = dwc2_desclist_idx_inc(idx, inc, qh->dev_speed);
 			n_desc++;
 		}
+		qtd->isoc_td_last = idx;
 		qtd->in_process = 1;
 	}
 
@@ -575,6 +640,11 @@ static void dwc2_init_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 	if (qh->ntd == ntd_max) {
 		idx = dwc2_desclist_idx_dec(qh->td_last, inc, qh->dev_speed);
 		qh->desc_list[idx].status |= HOST_DMA_IOC;
+		dma_sync_single_for_device(hsotg->dev,
+					   qh->desc_list_dma + (idx *
+					   sizeof(struct dwc2_hcd_dma_desc)),
+					   sizeof(struct dwc2_hcd_dma_desc),
+					   DMA_TO_DEVICE);
 	}
 #else
 	/*
@@ -604,13 +674,12 @@ static void dwc2_init_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 		idx = dwc2_desclist_idx_dec(qh->td_last, inc, qh->dev_speed);
 
 	qh->desc_list[idx].status |= HOST_DMA_IOC;
+	dma_sync_single_for_device(hsotg->dev,
+				   qh->desc_list_dma +
+				   (idx * sizeof(struct dwc2_hcd_dma_desc)),
+				   sizeof(struct dwc2_hcd_dma_desc),
+				   DMA_TO_DEVICE);
 #endif
-
-	if (n_desc) {
-		qh->desc_list[n_desc - 1].status |= HOST_DMA_A;
-		if (n_desc > 1)
-			qh->desc_list[0].status |= HOST_DMA_A;
-	}
 }
 
 static void dwc2_fill_host_dma_desc(struct dwc2_hsotg *hsotg,
@@ -647,6 +716,12 @@ static void dwc2_fill_host_dma_desc(struct dwc2_hsotg *hsotg,
 
 	dma_desc->buf = (u32)chan->xfer_dma;
 
+	dma_sync_single_for_device(hsotg->dev,
+				   qh->desc_list_dma +
+				   (n_desc * sizeof(struct dwc2_hcd_dma_desc)),
+				   sizeof(struct dwc2_hcd_dma_desc),
+				   DMA_TO_DEVICE);
+
 	/*
 	 * Last (or only) descriptor of IN transfer with actual size less
 	 * than MaxPacket
@@ -697,6 +772,12 @@ static void dwc2_init_non_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 					 "set A bit in desc %d (%p)\n",
 					 n_desc - 1,
 					 &qh->desc_list[n_desc - 1]);
+				dma_sync_single_for_device(hsotg->dev,
+					qh->desc_list_dma +
+					((n_desc - 1) *
+					sizeof(struct dwc2_hcd_dma_desc)),
+					sizeof(struct dwc2_hcd_dma_desc),
+					DMA_TO_DEVICE);
 			}
 			dwc2_fill_host_dma_desc(hsotg, chan, qtd, qh, n_desc);
 			dev_vdbg(hsotg->dev,
@@ -722,10 +803,19 @@ static void dwc2_init_non_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 				HOST_DMA_IOC | HOST_DMA_EOL | HOST_DMA_A;
 		dev_vdbg(hsotg->dev, "set IOC/EOL/A bits in desc %d (%p)\n",
 			 n_desc - 1, &qh->desc_list[n_desc - 1]);
+		dma_sync_single_for_device(hsotg->dev,
+					   qh->desc_list_dma + (n_desc - 1) *
+					   sizeof(struct dwc2_hcd_dma_desc),
+					   sizeof(struct dwc2_hcd_dma_desc),
+					   DMA_TO_DEVICE);
 		if (n_desc > 1) {
 			qh->desc_list[0].status |= HOST_DMA_A;
 			dev_vdbg(hsotg->dev, "set A bit in desc 0 (%p)\n",
 				 &qh->desc_list[0]);
+			dma_sync_single_for_device(hsotg->dev,
+					qh->desc_list_dma,
+					sizeof(struct dwc2_hcd_dma_desc),
+					DMA_TO_DEVICE);
 		}
 		chan->ntd = n_desc;
 	}
@@ -800,7 +890,7 @@ static int dwc2_cmpl_host_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 					struct dwc2_qtd *qtd,
 					struct dwc2_qh *qh, u16 idx)
 {
-	struct dwc2_hcd_dma_desc *dma_desc = &qh->desc_list[idx];
+	struct dwc2_hcd_dma_desc *dma_desc;
 	struct dwc2_hcd_iso_packet_desc *frame_desc;
 	u16 remain = 0;
 	int rc = 0;
@@ -808,6 +898,13 @@ static int dwc2_cmpl_host_isoc_dma_desc(struct dwc2_hsotg *hsotg,
 	if (!qtd->urb)
 		return -EINVAL;
 
+	dma_sync_single_for_cpu(hsotg->dev, qh->desc_list_dma + (idx *
+				sizeof(struct dwc2_hcd_dma_desc)),
+				sizeof(struct dwc2_hcd_dma_desc),
+				DMA_FROM_DEVICE);
+
+	dma_desc = &qh->desc_list[idx];
+
 	frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index_last];
 	dma_desc->buf = (u32)(qtd->urb->dma + frame_desc->offset);
 	if (chan->ep_is_in)
@@ -911,17 +1008,51 @@ static void dwc2_complete_isoc_xfer_ddma(struct dwc2_hsotg *hsotg,
 	list_for_each_entry_safe(qtd, qtd_tmp, &qh->qtd_list, qtd_list_entry) {
 		if (!qtd->in_process)
 			break;
+
+		/*
+		 * Ensure idx corresponds to descriptor where first urb of this
+		 * qtd was added. In fact, during isoc desc init, dwc2 may skip
+		 * an index if current frame number is already over this index.
+		 */
+		if (idx != qtd->isoc_td_first) {
+			dev_vdbg(hsotg->dev,
+				 "try to complete %d instead of %d\n",
+				 idx, qtd->isoc_td_first);
+			idx = qtd->isoc_td_first;
+		}
+
 		do {
+			struct dwc2_qtd *qtd_next;
+			u16 cur_idx;
+
 			rc = dwc2_cmpl_host_isoc_dma_desc(hsotg, chan, qtd, qh,
 							  idx);
 			if (rc < 0)
 				return;
 			idx = dwc2_desclist_idx_inc(idx, qh->interval,
 						    chan->speed);
-			if (rc == DWC2_CMPL_STOP)
-				goto stop_scan;
+			if (!rc)
+				continue;
+
 			if (rc == DWC2_CMPL_DONE)
 				break;
+
+			/* rc == DWC2_CMPL_STOP */
+
+			if (qh->interval >= 32)
+				goto stop_scan;
+
+			qh->td_first = idx;
+			cur_idx = dwc2_frame_list_idx(hsotg->frame_number);
+			qtd_next = list_first_entry(&qh->qtd_list,
+						    struct dwc2_qtd,
+						    qtd_list_entry);
+			if (dwc2_frame_idx_num_gt(cur_idx,
+						  qtd_next->isoc_td_last))
+				break;
+
+			goto stop_scan;
+
 		} while (idx != qh->td_first);
 	}
 
@@ -1029,6 +1160,12 @@ static int dwc2_process_non_isoc_desc(struct dwc2_hsotg *hsotg,
 	if (!urb)
 		return -EINVAL;
 
+	dma_sync_single_for_cpu(hsotg->dev,
+				qh->desc_list_dma + (desc_num *
+				sizeof(struct dwc2_hcd_dma_desc)),
+				sizeof(struct dwc2_hcd_dma_desc),
+				DMA_FROM_DEVICE);
+
 	dma_desc = &qh->desc_list[desc_num];
 	n_bytes = qh->n_bytes[desc_num];
 	dev_vdbg(hsotg->dev,
@@ -1037,7 +1174,10 @@ static int dwc2_process_non_isoc_desc(struct dwc2_hsotg *hsotg,
 	failed = dwc2_update_non_isoc_urb_state_ddma(hsotg, chan, qtd, dma_desc,
 						     halt_status, n_bytes,
 						     xfer_done);
-	if (failed || (*xfer_done && urb->status != -EINPROGRESS)) {
+	if (*xfer_done && urb->status != -EINPROGRESS)
+		failed = 1;
+
+	if (failed) {
 		dwc2_host_complete(hsotg, qtd, urb->status);
 		dwc2_hcd_qtd_unlink_and_free(hsotg, qtd, qh);
 		dev_vdbg(hsotg->dev, "failed=%1x xfer_done=%1x status=%08x\n",
@@ -1165,6 +1305,21 @@ void dwc2_hcd_complete_xfer_ddma(struct dwc2_hsotg *hsotg,
 		/* Release the channel if halted or session completed */
 		if (halt_status != DWC2_HC_XFER_COMPLETE ||
 		    list_empty(&qh->qtd_list)) {
+			struct dwc2_qtd *qtd, *qtd_tmp;
+
+			/*
+			 * Kill all remainings QTDs since channel has been
+			 * halted.
+			 */
+			list_for_each_entry_safe(qtd, qtd_tmp,
+						 &qh->qtd_list,
+						 qtd_list_entry) {
+				dwc2_host_complete(hsotg, qtd,
+						   -ECONNRESET);
+				dwc2_hcd_qtd_unlink_and_free(hsotg,
+							     qtd, qh);
+			}
+
 			/* Halt the channel if session completed */
 			if (halt_status == DWC2_HC_XFER_COMPLETE)
 				dwc2_hc_halt(hsotg, chan, halt_status);
@@ -1174,7 +1329,12 @@ void dwc2_hcd_complete_xfer_ddma(struct dwc2_hsotg *hsotg,
 			/* Keep in assigned schedule to continue transfer */
 			list_move(&qh->qh_list_entry,
 				  &hsotg->periodic_sched_assigned);
-			continue_isoc_xfer = 1;
+			/*
+			 * If channel has been halted during giveback of urb
+			 * then prevent any new scheduling.
+			 */
+			if (!chan->halt_status)
+				continue_isoc_xfer = 1;
 		}
 		/*
 		 * Todo: Consider the case when period exceeds FrameList size.
diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c
index bda0b21b850f..f8253803a050 100644
--- a/drivers/usb/dwc2/hcd_intr.c
+++ b/drivers/usb/dwc2/hcd_intr.c
@@ -122,6 +122,9 @@ static void dwc2_sof_intr(struct dwc2_hsotg *hsotg)
 	struct dwc2_qh *qh;
 	enum dwc2_transaction_type tr_type;
 
+	/* Clear interrupt */
+	dwc2_writel(GINTSTS_SOF, hsotg->regs + GINTSTS);
+
 #ifdef DEBUG_SOF
 	dev_vdbg(hsotg->dev, "--Start of Frame Interrupt--\n");
 #endif
@@ -146,9 +149,6 @@ static void dwc2_sof_intr(struct dwc2_hsotg *hsotg)
 	tr_type = dwc2_hcd_select_transactions(hsotg);
 	if (tr_type != DWC2_TRANSACTION_NONE)
 		dwc2_hcd_queue_transactions(hsotg, tr_type);
-
-	/* Clear interrupt */
-	dwc2_writel(GINTSTS_SOF, hsotg->regs + GINTSTS);
 }
 
 /*
@@ -312,6 +312,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
 
 	if (do_reset) {
 		*hprt0_modify |= HPRT0_RST;
+		dwc2_writel(*hprt0_modify, hsotg->regs + HPRT0);
 		queue_delayed_work(hsotg->wq_otg, &hsotg->reset_work,
 				   msecs_to_jiffies(60));
 	} else {
@@ -347,15 +348,12 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg)
 	 * Set flag and clear if detected
 	 */
 	if (hprt0 & HPRT0_CONNDET) {
+		dwc2_writel(hprt0_modify | HPRT0_CONNDET, hsotg->regs + HPRT0);
+
 		dev_vdbg(hsotg->dev,
 			 "--Port Interrupt HPRT0=0x%08x Port Connect Detected--\n",
 			 hprt0);
-		if (hsotg->lx_state != DWC2_L0)
-			usb_hcd_resume_root_hub(hsotg->priv);
-
-		hsotg->flags.b.port_connect_status_change = 1;
-		hsotg->flags.b.port_connect_status = 1;
-		hprt0_modify |= HPRT0_CONNDET;
+		dwc2_hcd_connect(hsotg);
 
 		/*
 		 * The Hub driver asserts a reset when it sees port connect
@@ -368,27 +366,36 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg)
 	 * Clear if detected - Set internal flag if disabled
 	 */
 	if (hprt0 & HPRT0_ENACHG) {
+		dwc2_writel(hprt0_modify | HPRT0_ENACHG, hsotg->regs + HPRT0);
 		dev_vdbg(hsotg->dev,
 			 "  --Port Interrupt HPRT0=0x%08x Port Enable Changed (now %d)--\n",
 			 hprt0, !!(hprt0 & HPRT0_ENA));
-		hprt0_modify |= HPRT0_ENACHG;
-		if (hprt0 & HPRT0_ENA)
+		if (hprt0 & HPRT0_ENA) {
+			hsotg->new_connection = true;
 			dwc2_hprt0_enable(hsotg, hprt0, &hprt0_modify);
-		else
+		} else {
 			hsotg->flags.b.port_enable_change = 1;
+			if (hsotg->core_params->dma_desc_fs_enable) {
+				u32 hcfg;
+
+				hsotg->core_params->dma_desc_enable = 0;
+				hsotg->new_connection = false;
+				hcfg = dwc2_readl(hsotg->regs + HCFG);
+				hcfg &= ~HCFG_DESCDMA;
+				dwc2_writel(hcfg, hsotg->regs + HCFG);
+			}
+		}
 	}
 
 	/* Overcurrent Change Interrupt */
 	if (hprt0 & HPRT0_OVRCURRCHG) {
+		dwc2_writel(hprt0_modify | HPRT0_OVRCURRCHG,
+			    hsotg->regs + HPRT0);
 		dev_vdbg(hsotg->dev,
 			 "  --Port Interrupt HPRT0=0x%08x Port Overcurrent Changed--\n",
 			 hprt0);
 		hsotg->flags.b.port_over_current_change = 1;
-		hprt0_modify |= HPRT0_OVRCURRCHG;
 	}
-
-	/* Clear Port Interrupts */
-	dwc2_writel(hprt0_modify, hsotg->regs + HPRT0);
 }
 
 /*
diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
index 7d8d06cfe3c1..27d402f680a3 100644
--- a/drivers/usb/dwc2/hcd_queue.c
+++ b/drivers/usb/dwc2/hcd_queue.c
@@ -232,7 +232,7 @@ struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
  */
 void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 {
-	if (hsotg->core_params->dma_desc_enable > 0) {
+	if (qh->desc_list) {
 		dwc2_hcd_qh_free_ddma(hsotg, qh);
 	} else {
 		/* kfree(NULL) is safe */
diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
index 553f24606c43..281b57b36ab4 100644
--- a/drivers/usb/dwc2/hw.h
+++ b/drivers/usb/dwc2/hw.h
@@ -769,10 +769,6 @@
 #define TSIZ_XFERSIZE_SHIFT		0
 
 #define HCDMA(_ch)			HSOTG_REG(0x0514 + 0x20 * (_ch))
-#define HCDMA_DMA_ADDR_MASK		(0x1fffff << 11)
-#define HCDMA_DMA_ADDR_SHIFT		11
-#define HCDMA_CTD_MASK			(0xff << 3)
-#define HCDMA_CTD_SHIFT			3
 
 #define HCDMAB(_ch)			HSOTG_REG(0x051c + 0x20 * (_ch))
 
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 39c1cbf0e75d..510f787434b3 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -54,11 +54,44 @@
 
 static const char dwc2_driver_name[] = "dwc2";
 
+static const struct dwc2_core_params params_hi6220 = {
+	.otg_cap			= 2,	/* No HNP/SRP capable */
+	.otg_ver			= 0,	/* 1.3 */
+	.dma_enable			= 1,
+	.dma_desc_enable		= 0,
+	.dma_desc_fs_enable		= 0,
+	.speed				= 0,	/* High Speed */
+	.enable_dynamic_fifo		= 1,
+	.en_multiple_tx_fifo		= 1,
+	.host_rx_fifo_size		= 512,
+	.host_nperio_tx_fifo_size	= 512,
+	.host_perio_tx_fifo_size	= 512,
+	.max_transfer_size		= 65535,
+	.max_packet_count		= 511,
+	.host_channels			= 16,
+	.phy_type			= 1,	/* UTMI */
+	.phy_utmi_width			= 8,
+	.phy_ulpi_ddr			= 0,	/* Single */
+	.phy_ulpi_ext_vbus		= 0,
+	.i2c_enable			= 0,
+	.ulpi_fs_ls			= 0,
+	.host_support_fs_ls_low_power	= 0,
+	.host_ls_low_power_phy_clk	= 0,	/* 48 MHz */
+	.ts_dline			= 0,
+	.reload_ctl			= 0,
+	.ahbcfg				= GAHBCFG_HBSTLEN_INCR16 <<
+					  GAHBCFG_HBSTLEN_SHIFT,
+	.uframe_sched			= 0,
+	.external_id_pin_ctl		= -1,
+	.hibernation			= -1,
+};
+
 static const struct dwc2_core_params params_bcm2835 = {
 	.otg_cap			= 0,	/* HNP/SRP capable */
 	.otg_ver			= 0,	/* 1.3 */
 	.dma_enable			= 1,
 	.dma_desc_enable		= 0,
+	.dma_desc_fs_enable		= 0,
 	.speed				= 0,	/* High Speed */
 	.enable_dynamic_fifo		= 1,
 	.en_multiple_tx_fifo		= 1,
@@ -89,6 +122,7 @@ static const struct dwc2_core_params params_rk3066 = {
 	.otg_ver			= -1,
 	.dma_enable			= -1,
 	.dma_desc_enable		= 0,
+	.dma_desc_fs_enable		= 0,
 	.speed				= -1,
 	.enable_dynamic_fifo		= 1,
 	.en_multiple_tx_fifo		= -1,
@@ -115,6 +149,71 @@ static const struct dwc2_core_params params_rk3066 = {
 	.hibernation			= -1,
 };
 
+/*
+ * Check the dr_mode against the module configuration and hardware
+ * capabilities.
+ *
+ * The hardware, module, and dr_mode, can each be set to host, device,
+ * or otg. Check that all these values are compatible and adjust the
+ * value of dr_mode if possible.
+ *
+ *                      actual
+ *    HW  MOD dr_mode   dr_mode
+ *  ------------------------------
+ *   HST  HST  any    :  HST
+ *   HST  DEV  any    :  ---
+ *   HST  OTG  any    :  HST
+ *
+ *   DEV  HST  any    :  ---
+ *   DEV  DEV  any    :  DEV
+ *   DEV  OTG  any    :  DEV
+ *
+ *   OTG  HST  any    :  HST
+ *   OTG  DEV  any    :  DEV
+ *   OTG  OTG  any    :  dr_mode
+ */
+static int dwc2_get_dr_mode(struct dwc2_hsotg *hsotg)
+{
+	enum usb_dr_mode mode;
+
+	hsotg->dr_mode = usb_get_dr_mode(hsotg->dev);
+	if (hsotg->dr_mode == USB_DR_MODE_UNKNOWN)
+		hsotg->dr_mode = USB_DR_MODE_OTG;
+
+	mode = hsotg->dr_mode;
+
+	if (dwc2_hw_is_device(hsotg)) {
+		if (IS_ENABLED(CONFIG_USB_DWC2_HOST)) {
+			dev_err(hsotg->dev,
+				"Controller does not support host mode.\n");
+			return -EINVAL;
+		}
+		mode = USB_DR_MODE_PERIPHERAL;
+	} else if (dwc2_hw_is_host(hsotg)) {
+		if (IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL)) {
+			dev_err(hsotg->dev,
+				"Controller does not support device mode.\n");
+			return -EINVAL;
+		}
+		mode = USB_DR_MODE_HOST;
+	} else {
+		if (IS_ENABLED(CONFIG_USB_DWC2_HOST))
+			mode = USB_DR_MODE_HOST;
+		else if (IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL))
+			mode = USB_DR_MODE_PERIPHERAL;
+	}
+
+	if (mode != hsotg->dr_mode) {
+		dev_warn(hsotg->dev,
+			"Configuration mismatch. dr_mode forced to %s\n",
+			mode == USB_DR_MODE_HOST ? "host" : "device");
+
+		hsotg->dr_mode = mode;
+	}
+
+	return 0;
+}
+
 static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
 {
 	struct platform_device *pdev = to_platform_device(hsotg->dev);
@@ -306,8 +405,28 @@ static int dwc2_driver_remove(struct platform_device *dev)
 	return 0;
 }
 
+/**
+ * dwc2_driver_shutdown() - Called on device shutdown
+ *
+ * @dev: Platform device
+ *
+ * In specific conditions (involving usb hubs) dwc2 devices can create a
+ * lot of interrupts, even to the point of overwhelming devices running
+ * at low frequencies. Some devices need to do special clock handling
+ * at shutdown-time which may bring the system clock below the threshold
+ * of being able to handle the dwc2 interrupts. Disabling dwc2-irqs
+ * prevents reboots/poweroffs from getting stuck in such cases.
+ */
+static void dwc2_driver_shutdown(struct platform_device *dev)
+{
+	struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
+
+	disable_irq(hsotg->irq);
+}
+
 static const struct of_device_id dwc2_of_match_table[] = {
 	{ .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
+	{ .compatible = "hisilicon,hi6220-usb", .data = &params_hi6220 },
 	{ .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
 	{ .compatible = "snps,dwc2", .data = NULL },
 	{ .compatible = "samsung,s3c6400-hsotg", .data = NULL},
@@ -335,7 +454,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	struct dwc2_hsotg *hsotg;
 	struct resource *res;
 	int retval;
-	int irq;
 
 	match = of_match_device(dwc2_of_match_table, &dev->dev);
 	if (match && match->data) {
@@ -348,8 +466,10 @@ static int dwc2_driver_probe(struct platform_device *dev)
 		/*
 		 * Disable descriptor dma mode by default as the HW can support
 		 * it, but does not support it for SPLIT transactions.
+		 * Disable it for FS devices as well.
 		 */
 		defparams.dma_desc_enable = 0;
+		defparams.dma_desc_fs_enable = 0;
 	}
 
 	hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL);
@@ -375,19 +495,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
 		(unsigned long)res->start, hsotg->regs);
 
-	hsotg->dr_mode = usb_get_dr_mode(&dev->dev);
-	if (IS_ENABLED(CONFIG_USB_DWC2_HOST) &&
-			hsotg->dr_mode != USB_DR_MODE_HOST) {
-		hsotg->dr_mode = USB_DR_MODE_HOST;
-		dev_warn(hsotg->dev,
-			"Configuration mismatch. Forcing host mode\n");
-	} else if (IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) &&
-			hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
-		hsotg->dr_mode = USB_DR_MODE_PERIPHERAL;
-		dev_warn(hsotg->dev,
-			"Configuration mismatch. Forcing peripheral mode\n");
-	}
-
 	retval = dwc2_lowlevel_hw_init(hsotg);
 	if (retval)
 		return retval;
@@ -401,15 +508,15 @@ static int dwc2_driver_probe(struct platform_device *dev)
 
 	dwc2_set_all_params(hsotg->core_params, -1);
 
-	irq = platform_get_irq(dev, 0);
-	if (irq < 0) {
+	hsotg->irq = platform_get_irq(dev, 0);
+	if (hsotg->irq < 0) {
 		dev_err(&dev->dev, "missing IRQ resource\n");
-		return irq;
+		return hsotg->irq;
 	}
 
 	dev_dbg(hsotg->dev, "registering common handler for irq%d\n",
-		irq);
-	retval = devm_request_irq(hsotg->dev, irq,
+		hsotg->irq);
+	retval = devm_request_irq(hsotg->dev, hsotg->irq,
 				  dwc2_handle_common_intr, IRQF_SHARED,
 				  dev_name(hsotg->dev), hsotg);
 	if (retval)
@@ -419,7 +526,11 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	if (retval)
 		return retval;
 
-	/* Detect config values from hardware */
+	retval = dwc2_get_dr_mode(hsotg);
+	if (retval)
+		return retval;
+
+	/* Reset the controller and detect hardware config values */
 	retval = dwc2_get_hwparams(hsotg);
 	if (retval)
 		goto error;
@@ -427,15 +538,17 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	/* Validate parameter values */
 	dwc2_set_parameters(hsotg, params);
 
+	dwc2_force_dr_mode(hsotg);
+
 	if (hsotg->dr_mode != USB_DR_MODE_HOST) {
-		retval = dwc2_gadget_init(hsotg, irq);
+		retval = dwc2_gadget_init(hsotg, hsotg->irq);
 		if (retval)
 			goto error;
 		hsotg->gadget_enabled = 1;
 	}
 
 	if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
-		retval = dwc2_hcd_init(hsotg, irq);
+		retval = dwc2_hcd_init(hsotg, hsotg->irq);
 		if (retval) {
 			if (hsotg->gadget_enabled)
 				dwc2_hsotg_remove(hsotg);
@@ -502,6 +615,7 @@ static struct platform_driver dwc2_platform_driver = {
 	},
 	.probe = dwc2_driver_probe,
 	.remove = dwc2_driver_remove,
+	.shutdown = dwc2_driver_shutdown,
 };
 
 module_platform_driver(dwc2_platform_driver);
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 5a42c4590402..a64ce1c94d6d 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -87,6 +87,15 @@ config USB_DWC3_KEYSTONE
 	  Support of USB2/3 functionality in TI Keystone2 platforms.
 	  Say 'Y' or 'M' here if you have one such device
 
+config USB_DWC3_OF_SIMPLE
+       tristate "Generic OF Simple Glue Layer"
+       depends on OF && COMMON_CLK
+       default USB_DWC3
+       help
+         Support USB2/3 functionality in simple SoC integrations.
+	 Currently supports Xilinx and Qualcomm DWC USB3 IP.
+	 Say 'Y' or 'M' if you have one such device.
+
 config USB_DWC3_ST
 	tristate "STMicroelectronics Platforms"
 	depends on ARCH_STI && OF
@@ -96,12 +105,4 @@ config USB_DWC3_ST
 	  inside (i.e. STiH407).
 	  Say 'Y' or 'M' if you have one such device.
 
-config USB_DWC3_QCOM
-	tristate "Qualcomm Platforms"
-	depends on ARCH_QCOM || COMPILE_TEST
-	default USB_DWC3
-	help
-	  Recent Qualcomm SoCs ship with one DesignWare Core USB3 IP inside,
-	  say 'Y' or 'M' if you have one such device.
-
 endif
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index acc951d46c27..22420e17d68b 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -37,5 +37,5 @@ obj-$(CONFIG_USB_DWC3_OMAP)		+= dwc3-omap.o
 obj-$(CONFIG_USB_DWC3_EXYNOS)		+= dwc3-exynos.o
 obj-$(CONFIG_USB_DWC3_PCI)		+= dwc3-pci.o
 obj-$(CONFIG_USB_DWC3_KEYSTONE)		+= dwc3-keystone.o
-obj-$(CONFIG_USB_DWC3_QCOM)		+= dwc3-qcom.o
+obj-$(CONFIG_USB_DWC3_OF_SIMPLE)	+= dwc3-of-simple.o
 obj-$(CONFIG_USB_DWC3_ST)		+= dwc3-st.o
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 22b4797383cd..de5e01f41bc2 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -272,7 +272,8 @@ static int dwc3_event_buffers_setup(struct dwc3 *dwc)
 
 	for (n = 0; n < dwc->num_event_buffers; n++) {
 		evt = dwc->ev_buffs[n];
-		dev_dbg(dwc->dev, "Event buf %p dma %08llx length %d\n",
+		dwc3_trace(trace_dwc3_core,
+				"Event buf %p dma %08llx length %d\n",
 				evt->buf, (unsigned long long) evt->dma,
 				evt->length);
 
@@ -608,12 +609,13 @@ static int dwc3_core_init(struct dwc3 *dwc)
 		reg |= DWC3_GCTL_GBLHIBERNATIONEN;
 		break;
 	default:
-		dev_dbg(dwc->dev, "No power optimization available\n");
+		dwc3_trace(trace_dwc3_core, "No power optimization available\n");
 	}
 
 	/* check if current dwc3 is on simulation board */
 	if (dwc->hwparams.hwparams6 & DWC3_GHWPARAMS6_EN_FPGA) {
-		dev_dbg(dwc->dev, "it is on FPGA board\n");
+		dwc3_trace(trace_dwc3_core,
+				"running on FPGA platform\n");
 		dwc->is_fpga = true;
 	}
 
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 36f1cb74588c..29130682e547 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -37,6 +37,7 @@
 #define DWC3_MSG_MAX	500
 
 /* Global constants */
+#define DWC3_ZLP_BUF_SIZE	1024	/* size of a superspeed bulk */
 #define DWC3_EP0_BOUNCE_SIZE	512
 #define DWC3_ENDPOINTS_NUM	32
 #define DWC3_XHCI_RESOURCES_NUM	2
@@ -647,6 +648,7 @@ struct dwc3_scratchpad_array {
  * @ctrl_req: usb control request which is used for ep0
  * @ep0_trb: trb which is used for the ctrl_req
  * @ep0_bounce: bounce buffer for ep0
+ * @zlp_buf: used when request->zero is set
  * @setup_buf: used while precessing STD USB requests
  * @ctrl_req_addr: dma address of ctrl_req
  * @ep0_trb: dma address of ep0_trb
@@ -734,6 +736,7 @@ struct dwc3 {
 	struct usb_ctrlrequest	*ctrl_req;
 	struct dwc3_trb		*ep0_trb;
 	void			*ep0_bounce;
+	void			*zlp_buf;
 	void			*scratchbuf;
 	u8			*setup_buf;
 	dma_addr_t		ctrl_req_addr;
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
new file mode 100644
index 000000000000..9c9f74155066
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -0,0 +1,180 @@
+/**
+ * dwc3-of-simple.c - OF glue layer for simple integrations
+ *
+ * Copyright (c) 2015 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2  of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * This is a combination of the old dwc3-qcom.c by Ivan T. Ivanov
+ * <iivanov@mm-sol.com> and the original patch adding support for Xilinx' SoC
+ * by Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+
+struct dwc3_of_simple {
+	struct device		*dev;
+	struct clk		**clks;
+	int			num_clocks;
+};
+
+static int dwc3_of_simple_probe(struct platform_device *pdev)
+{
+	struct dwc3_of_simple	*simple;
+	struct device		*dev = &pdev->dev;
+	struct device_node	*np = dev->of_node;
+
+	int			ret;
+	int			i;
+
+	simple = devm_kzalloc(dev, sizeof(*simple), GFP_KERNEL);
+	if (!simple)
+		return -ENOMEM;
+
+	ret = of_clk_get_parent_count(np);
+	if (ret < 0)
+		return ret;
+
+	simple->num_clocks = ret;
+
+	simple->clks = devm_kcalloc(dev, simple->num_clocks,
+			sizeof(struct clk *), GFP_KERNEL);
+	if (!simple->clks)
+		return -ENOMEM;
+
+	simple->dev = dev;
+
+	for (i = 0; i < simple->num_clocks; i++) {
+		struct clk	*clk;
+
+		clk = of_clk_get(np, i);
+		if (IS_ERR(clk)) {
+			while (--i >= 0)
+				clk_put(simple->clks[i]);
+			return PTR_ERR(clk);
+		}
+
+		ret = clk_prepare_enable(clk);
+		if (ret < 0) {
+			while (--i >= 0) {
+				clk_disable_unprepare(simple->clks[i]);
+				clk_put(simple->clks[i]);
+			}
+			clk_put(clk);
+
+			return ret;
+		}
+
+		simple->clks[i] = clk;
+	}
+
+	ret = of_platform_populate(np, NULL, NULL, dev);
+	if (ret) {
+		for (i = 0; i < simple->num_clocks; i++) {
+			clk_disable_unprepare(simple->clks[i]);
+			clk_put(simple->clks[i]);
+		}
+
+		return ret;
+	}
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	return 0;
+}
+
+static int dwc3_of_simple_remove(struct platform_device *pdev)
+{
+	struct dwc3_of_simple	*simple = platform_get_drvdata(pdev);
+	struct device		*dev = &pdev->dev;
+	int			i;
+
+	for (i = 0; i < simple->num_clocks; i++) {
+		clk_unprepare(simple->clks[i]);
+		clk_put(simple->clks[i]);
+	}
+
+	of_platform_depopulate(dev);
+
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int dwc3_of_simple_runtime_suspend(struct device *dev)
+{
+	struct dwc3_of_simple	*simple = dev_get_drvdata(dev);
+	int			i;
+
+	for (i = 0; i < simple->num_clocks; i++)
+		clk_disable(simple->clks[i]);
+
+	return 0;
+}
+
+static int dwc3_of_simple_runtime_resume(struct device *dev)
+{
+	struct dwc3_of_simple	*simple = dev_get_drvdata(dev);
+	int			ret;
+	int			i;
+
+	for (i = 0; i < simple->num_clocks; i++) {
+		ret = clk_enable(simple->clks[i]);
+		if (ret < 0) {
+			while (--i >= 0)
+				clk_disable(simple->clks[i]);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = {
+	SET_RUNTIME_PM_OPS(dwc3_of_simple_runtime_suspend,
+			dwc3_of_simple_runtime_resume, NULL)
+};
+
+static const struct of_device_id of_dwc3_simple_match[] = {
+	{ .compatible = "qcom,dwc3" },
+	{ .compatible = "xlnx,zynqmp-dwc3" },
+	{ /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);
+
+static struct platform_driver dwc3_of_simple_driver = {
+	.probe		= dwc3_of_simple_probe,
+	.remove		= dwc3_of_simple_remove,
+	.driver		= {
+		.name	= "dwc3-of-simple",
+		.of_match_table = of_dwc3_simple_match,
+	},
+};
+
+module_platform_driver(dwc3_of_simple_driver);
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("DesignWare USB3 OF Simple Glue Layer");
+MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
deleted file mode 100644
index 088026048f49..000000000000
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-
-struct dwc3_qcom {
-	struct device		*dev;
-
-	struct clk		*core_clk;
-	struct clk		*iface_clk;
-	struct clk		*sleep_clk;
-};
-
-static int dwc3_qcom_probe(struct platform_device *pdev)
-{
-	struct device_node *node = pdev->dev.of_node;
-	struct dwc3_qcom *qdwc;
-	int ret;
-
-	qdwc = devm_kzalloc(&pdev->dev, sizeof(*qdwc), GFP_KERNEL);
-	if (!qdwc)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, qdwc);
-
-	qdwc->dev = &pdev->dev;
-
-	qdwc->core_clk = devm_clk_get(qdwc->dev, "core");
-	if (IS_ERR(qdwc->core_clk)) {
-		dev_err(qdwc->dev, "failed to get core clock\n");
-		return PTR_ERR(qdwc->core_clk);
-	}
-
-	qdwc->iface_clk = devm_clk_get(qdwc->dev, "iface");
-	if (IS_ERR(qdwc->iface_clk)) {
-		dev_info(qdwc->dev, "failed to get optional iface clock\n");
-		qdwc->iface_clk = NULL;
-	}
-
-	qdwc->sleep_clk = devm_clk_get(qdwc->dev, "sleep");
-	if (IS_ERR(qdwc->sleep_clk)) {
-		dev_info(qdwc->dev, "failed to get optional sleep clock\n");
-		qdwc->sleep_clk = NULL;
-	}
-
-	ret = clk_prepare_enable(qdwc->core_clk);
-	if (ret) {
-		dev_err(qdwc->dev, "failed to enable core clock\n");
-		goto err_core;
-	}
-
-	ret = clk_prepare_enable(qdwc->iface_clk);
-	if (ret) {
-		dev_err(qdwc->dev, "failed to enable optional iface clock\n");
-		goto err_iface;
-	}
-
-	ret = clk_prepare_enable(qdwc->sleep_clk);
-	if (ret) {
-		dev_err(qdwc->dev, "failed to enable optional sleep clock\n");
-		goto err_sleep;
-	}
-
-	ret = of_platform_populate(node, NULL, NULL, qdwc->dev);
-	if (ret) {
-		dev_err(qdwc->dev, "failed to register core - %d\n", ret);
-		goto err_clks;
-	}
-
-	return 0;
-
-err_clks:
-	clk_disable_unprepare(qdwc->sleep_clk);
-err_sleep:
-	clk_disable_unprepare(qdwc->iface_clk);
-err_iface:
-	clk_disable_unprepare(qdwc->core_clk);
-err_core:
-	return ret;
-}
-
-static int dwc3_qcom_remove(struct platform_device *pdev)
-{
-	struct dwc3_qcom *qdwc = platform_get_drvdata(pdev);
-
-	of_platform_depopulate(&pdev->dev);
-
-	clk_disable_unprepare(qdwc->sleep_clk);
-	clk_disable_unprepare(qdwc->iface_clk);
-	clk_disable_unprepare(qdwc->core_clk);
-
-	return 0;
-}
-
-static const struct of_device_id of_dwc3_match[] = {
-	{ .compatible = "qcom,dwc3" },
-	{ /* Sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, of_dwc3_match);
-
-static struct platform_driver dwc3_qcom_driver = {
-	.probe		= dwc3_qcom_probe,
-	.remove		= dwc3_qcom_remove,
-	.driver		= {
-		.name	= "qcom-dwc3",
-		.of_match_table	= of_dwc3_match,
-	},
-};
-
-module_platform_driver(dwc3_qcom_driver);
-
-MODULE_ALIAS("platform:qcom-dwc3");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("DesignWare USB3 QCOM Glue Layer");
-MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>");
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 5320e939e090..3a9354abcb68 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -817,6 +817,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 
 	status = DWC3_TRB_SIZE_TRBSTS(trb->size);
 	if (status == DWC3_TRBSTS_SETUP_PENDING) {
+		dwc->setup_packet_pending = true;
+
 		dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
 
 		if (r)
@@ -916,8 +918,10 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
 	}
 
 	status = DWC3_TRB_SIZE_TRBSTS(trb->size);
-	if (status == DWC3_TRBSTS_SETUP_PENDING)
+	if (status == DWC3_TRBSTS_SETUP_PENDING) {
+		dwc->setup_packet_pending = true;
 		dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
+	}
 
 	dwc->ep0state = EP0_SETUP_PHASE;
 	dwc3_ep0_out_start(dwc);
@@ -971,7 +975,7 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		ret = usb_gadget_map_request(&dwc->gadget, &req->request,
 				dep->number);
 		if (ret) {
-			dev_dbg(dwc->dev, "failed to map request\n");
+			dwc3_trace(trace_dwc3_ep0, "failed to map request\n");
 			return;
 		}
 
@@ -999,7 +1003,7 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		ret = usb_gadget_map_request(&dwc->gadget, &req->request,
 				dep->number);
 		if (ret) {
-			dev_dbg(dwc->dev, "failed to map request\n");
+			dwc3_trace(trace_dwc3_ep0, "failed to map request\n");
 			return;
 		}
 
@@ -1063,8 +1067,6 @@ static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
 static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
 		const struct dwc3_event_depevt *event)
 {
-	dwc->setup_packet_pending = true;
-
 	switch (event->status) {
 	case DEPEVT_STATUS_CONTROL_DATA:
 		dwc3_trace(trace_dwc3_ep0, "Control Data");
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index a58376fd65fe..af023a81a0b0 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -265,9 +265,6 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		usb_gadget_unmap_request(&dwc->gadget, &req->request,
 				req->direction);
 
-	dev_dbg(dwc->dev, "request %p from %s completed %d/%d ===> %d\n",
-			req, dep->name, req->request.actual,
-			req->request.length, status);
 	trace_dwc3_gadget_giveback(req);
 
 	spin_unlock(&dwc->lock);
@@ -664,11 +661,10 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
 	dep = to_dwc3_ep(ep);
 	dwc = dep->dwc;
 
-	if (dep->flags & DWC3_EP_ENABLED) {
-		dev_WARN_ONCE(dwc->dev, true, "%s is already enabled\n",
-				dep->name);
+	if (dev_WARN_ONCE(dwc->dev, dep->flags & DWC3_EP_ENABLED,
+					"%s is already enabled\n",
+					dep->name))
 		return 0;
-	}
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false, false);
@@ -692,11 +688,10 @@ static int dwc3_gadget_ep_disable(struct usb_ep *ep)
 	dep = to_dwc3_ep(ep);
 	dwc = dep->dwc;
 
-	if (!(dep->flags & DWC3_EP_ENABLED)) {
-		dev_WARN_ONCE(dwc->dev, true, "%s is already disabled\n",
-				dep->name);
+	if (dev_WARN_ONCE(dwc->dev, !(dep->flags & DWC3_EP_ENABLED),
+					"%s is already disabled\n",
+					dep->name))
 		return 0;
-	}
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	ret = __dwc3_gadget_ep_disable(dep);
@@ -985,8 +980,6 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
 	cmd |= DWC3_DEPCMD_PARAM(cmd_param);
 	ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, &params);
 	if (ret < 0) {
-		dev_dbg(dwc->dev, "failed to send STARTTRANSFER command\n");
-
 		/*
 		 * FIXME we need to iterate over the list of requests
 		 * here and stop, unmap, free and del each of the linked
@@ -1044,6 +1037,20 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 	struct dwc3		*dwc = dep->dwc;
 	int			ret;
 
+	if (!dep->endpoint.desc) {
+		dwc3_trace(trace_dwc3_gadget,
+				"trying to queue request %p to disabled %s\n",
+				&req->request, dep->endpoint.name);
+		return -ESHUTDOWN;
+	}
+
+	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
+				&req->request, req->dep->name)) {
+		dwc3_trace(trace_dwc3_gadget, "request %p belongs to '%s'\n",
+				&req->request, req->dep->name);
+		return -EINVAL;
+	}
+
 	req->request.actual	= 0;
 	req->request.status	= -EINPROGRESS;
 	req->direction		= dep->direction;
@@ -1141,7 +1148,8 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 
 out:
 	if (ret && ret != -EBUSY)
-		dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
+		dwc3_trace(trace_dwc3_gadget,
+				"%s: failed to kick transfers\n",
 				dep->name);
 	if (ret == -EBUSY)
 		ret = 0;
@@ -1149,6 +1157,32 @@ out:
 	return ret;
 }
 
+static void __dwc3_gadget_ep_zlp_complete(struct usb_ep *ep,
+		struct usb_request *request)
+{
+	dwc3_gadget_ep_free_request(ep, request);
+}
+
+static int __dwc3_gadget_ep_queue_zlp(struct dwc3 *dwc, struct dwc3_ep *dep)
+{
+	struct dwc3_request		*req;
+	struct usb_request		*request;
+	struct usb_ep			*ep = &dep->endpoint;
+
+	dwc3_trace(trace_dwc3_gadget, "queueing ZLP\n");
+	request = dwc3_gadget_ep_alloc_request(ep, GFP_ATOMIC);
+	if (!request)
+		return -ENOMEM;
+
+	request->length = 0;
+	request->buf = dwc->zlp_buf;
+	request->complete = __dwc3_gadget_ep_zlp_complete;
+
+	req = to_dwc3_request(request);
+
+	return __dwc3_gadget_ep_queue(dep, req);
+}
+
 static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
 	gfp_t gfp_flags)
 {
@@ -1161,22 +1195,18 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
 	int				ret;
 
 	spin_lock_irqsave(&dwc->lock, flags);
-	if (!dep->endpoint.desc) {
-		dev_dbg(dwc->dev, "trying to queue request %p to disabled %s\n",
-				request, ep->name);
-		ret = -ESHUTDOWN;
-		goto out;
-	}
-
-	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
-				request, req->dep->name)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	ret = __dwc3_gadget_ep_queue(dep, req);
 
-out:
+	/*
+	 * Okay, here's the thing, if gadget driver has requested for a ZLP by
+	 * setting request->zero, instead of doing magic, we will just queue an
+	 * extra usb_request ourselves so that it gets handled the same way as
+	 * any other request.
+	 */
+	if (ret == 0 && request->zero && request->length &&
+	    (request->length % ep->maxpacket == 0))
+		ret = __dwc3_gadget_ep_queue_zlp(dwc, dep);
+
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;
@@ -1246,7 +1276,8 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
 		if (!protocol && ((dep->direction && dep->flags & DWC3_EP_BUSY) ||
 				(!list_empty(&dep->req_queued) ||
 				 !list_empty(&dep->request_list)))) {
-			dev_dbg(dwc->dev, "%s: pending request, cannot halt\n",
+			dwc3_trace(trace_dwc3_gadget,
+					"%s: pending request, cannot halt\n",
 					dep->name);
 			return -EAGAIN;
 		}
@@ -1373,7 +1404,7 @@ static int dwc3_gadget_wakeup(struct usb_gadget *g)
 
 	speed = reg & DWC3_DSTS_CONNECTSPD;
 	if (speed == DWC3_DSTS_SUPERSPEED) {
-		dev_dbg(dwc->dev, "no wakeup on SuperSpeed\n");
+		dwc3_trace(trace_dwc3_gadget, "no wakeup on SuperSpeed\n");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1385,8 +1416,9 @@ static int dwc3_gadget_wakeup(struct usb_gadget *g)
 	case DWC3_LINK_STATE_U3:	/* in HS, means SUSPEND */
 		break;
 	default:
-		dev_dbg(dwc->dev, "can't wakeup from link state %d\n",
-				link_state);
+		dwc3_trace(trace_dwc3_gadget,
+				"can't wakeup from '%s'\n",
+				dwc3_gadget_link_string(link_state));
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1825,7 +1857,8 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep,
 		if (count) {
 			trb_status = DWC3_TRB_SIZE_TRBSTS(trb->size);
 			if (trb_status == DWC3_TRBSTS_MISSED_ISOC) {
-				dev_dbg(dwc->dev, "incomplete IN transfer %s\n",
+				dwc3_trace(trace_dwc3_gadget,
+						"%s: incomplete IN transfer\n",
 						dep->name);
 				/*
 				 * If missed isoc occurred and there is
@@ -1887,10 +1920,9 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
 
 	do {
 		req = next_request(&dep->req_queued);
-		if (!req) {
-			WARN_ON_ONCE(1);
+		if (WARN_ON_ONCE(!req))
 			return 1;
-		}
+
 		i = 0;
 		do {
 			slot = req->start_slot + i;
@@ -2004,7 +2036,8 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
 		dep->resource_index = 0;
 
 		if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
-			dev_dbg(dwc->dev, "%s is an Isochronous endpoint\n",
+			dwc3_trace(trace_dwc3_gadget,
+					"%s is an Isochronous endpoint\n",
 					dep->name);
 			return;
 		}
@@ -2031,7 +2064,8 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
 			if (!ret || ret == -EBUSY)
 				return;
 
-			dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
+			dwc3_trace(trace_dwc3_gadget,
+					"%s: failed to kick transfers\n",
 					dep->name);
 		}
 
@@ -2053,11 +2087,12 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
 		case DEPEVT_STREAMEVT_NOTFOUND:
 			/* FALLTHROUGH */
 		default:
-			dev_dbg(dwc->dev, "Couldn't find suitable stream\n");
+			dwc3_trace(trace_dwc3_gadget,
+					"unable to find suitable stream\n");
 		}
 		break;
 	case DWC3_DEPEVT_RXTXFIFOEVT:
-		dev_dbg(dwc->dev, "%s FIFO Overrun\n", dep->name);
+		dwc3_trace(trace_dwc3_gadget, "%s FIFO Overrun\n", dep->name);
 		break;
 	case DWC3_DEPEVT_EPCMDCMPLT:
 		dwc3_trace(trace_dwc3_gadget, "Endpoint Command Complete");
@@ -2230,8 +2265,8 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
 	 *
 	 * Our suggested workaround is to follow the Disconnect
 	 * Event steps here, instead, based on a setup_packet_pending
-	 * flag. Such flag gets set whenever we have a XferNotReady
-	 * event on EP0 and gets cleared on XferComplete for the
+	 * flag. Such flag gets set whenever we have a SETUP_PENDING
+	 * status for EP0 TRBs and gets cleared on XferComplete for the
 	 * same endpoint.
 	 *
 	 * Refers to:
@@ -2744,6 +2779,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
 		goto err3;
 	}
 
+	dwc->zlp_buf = kzalloc(DWC3_ZLP_BUF_SIZE, GFP_KERNEL);
+	if (!dwc->zlp_buf) {
+		ret = -ENOMEM;
+		goto err4;
+	}
+
 	dwc->gadget.ops			= &dwc3_gadget_ops;
 	dwc->gadget.speed		= USB_SPEED_UNKNOWN;
 	dwc->gadget.sg_supported	= true;
@@ -2785,16 +2826,19 @@ int dwc3_gadget_init(struct dwc3 *dwc)
 
 	ret = dwc3_gadget_init_endpoints(dwc);
 	if (ret)
-		goto err4;
+		goto err5;
 
 	ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget);
 	if (ret) {
 		dev_err(dwc->dev, "failed to register udc\n");
-		goto err4;
+		goto err5;
 	}
 
 	return 0;
 
+err5:
+	kfree(dwc->zlp_buf);
+
 err4:
 	dwc3_gadget_free_endpoints(dwc);
 	dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE,
@@ -2827,6 +2871,7 @@ void dwc3_gadget_exit(struct dwc3 *dwc)
 			dwc->ep0_bounce, dwc->ep0_bounce_addr);
 
 	kfree(dwc->setup_buf);
+	kfree(dwc->zlp_buf);
 
 	dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb),
 			dwc->ep0_trb, dwc->ep0_trb_addr);
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
index 9c10669ab91f..3ac7252f4427 100644
--- a/drivers/usb/dwc3/trace.h
+++ b/drivers/usb/dwc3/trace.h
@@ -117,6 +117,9 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
 		__field(unsigned, actual)
 		__field(unsigned, length)
 		__field(int, status)
+		__field(int, zero)
+		__field(int, short_not_ok)
+		__field(int, no_interrupt)
 	),
 	TP_fast_assign(
 		snprintf(__get_str(name), DWC3_MSG_MAX, "%s", req->dep->name);
@@ -124,9 +127,15 @@ DECLARE_EVENT_CLASS(dwc3_log_request,
 		__entry->actual = req->request.actual;
 		__entry->length = req->request.length;
 		__entry->status = req->request.status;
+		__entry->zero = req->request.zero;
+		__entry->short_not_ok = req->request.short_not_ok;
+		__entry->no_interrupt = req->request.no_interrupt;
 	),
-	TP_printk("%s: req %p length %u/%u ==> %d",
+	TP_printk("%s: req %p length %u/%u %s%s%s ==> %d",
 		__get_str(name), __entry->req, __entry->actual, __entry->length,
+		__entry->zero ? "Z" : "z",
+		__entry->short_not_ok ? "S" : "s",
+		__entry->no_interrupt ? "i" : "I",
 		__entry->status
 	)
 );
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 33834aa09ed4..be5aab9c13f2 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -127,6 +127,12 @@ config USB_GADGET_STORAGE_NUM_BUFFERS
 	   a module parameter as well.
 	   If unsure, say 2.
 
+config U_SERIAL_CONSOLE
+	bool "Serial gadget console support"
+	depends on USB_G_SERIAL
+	help
+	   It supports the serial gadget can be used as a console.
+
 source "drivers/usb/gadget/udc/Kconfig"
 
 #
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 163d305e1200..590c44989e5e 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -56,7 +56,6 @@ struct gadget_info {
 	struct list_head string_list;
 	struct list_head available_func;
 
-	const char *udc_name;
 	struct usb_composite_driver composite;
 	struct usb_composite_dev cdev;
 	bool use_os_desc;
@@ -233,21 +232,23 @@ static ssize_t gadget_dev_desc_bcdUSB_store(struct config_item *item,
 
 static ssize_t gadget_dev_desc_UDC_show(struct config_item *item, char *page)
 {
-	return sprintf(page, "%s\n", to_gadget_info(item)->udc_name ?: "");
+	char *udc_name = to_gadget_info(item)->composite.gadget_driver.udc_name;
+
+	return sprintf(page, "%s\n", udc_name ?: "");
 }
 
 static int unregister_gadget(struct gadget_info *gi)
 {
 	int ret;
 
-	if (!gi->udc_name)
+	if (!gi->composite.gadget_driver.udc_name)
 		return -ENODEV;
 
 	ret = usb_gadget_unregister_driver(&gi->composite.gadget_driver);
 	if (ret)
 		return ret;
-	kfree(gi->udc_name);
-	gi->udc_name = NULL;
+	kfree(gi->composite.gadget_driver.udc_name);
+	gi->composite.gadget_driver.udc_name = NULL;
 	return 0;
 }
 
@@ -271,14 +272,16 @@ static ssize_t gadget_dev_desc_UDC_store(struct config_item *item,
 		if (ret)
 			goto err;
 	} else {
-		if (gi->udc_name) {
+		if (gi->composite.gadget_driver.udc_name) {
 			ret = -EBUSY;
 			goto err;
 		}
-		ret = usb_udc_attach_driver(name, &gi->composite.gadget_driver);
-		if (ret)
+		gi->composite.gadget_driver.udc_name = name;
+		ret = usb_gadget_probe_driver(&gi->composite.gadget_driver);
+		if (ret) {
+			gi->composite.gadget_driver.udc_name = NULL;
 			goto err;
-		gi->udc_name = name;
+		}
 	}
 	mutex_unlock(&gi->lock);
 	return len;
@@ -427,9 +430,9 @@ static int config_usb_cfg_unlink(
 	 * remove the function.
 	 */
 	mutex_lock(&gi->lock);
-	if (gi->udc_name)
+	if (gi->composite.gadget_driver.udc_name)
 		unregister_gadget(gi);
-	WARN_ON(gi->udc_name);
+	WARN_ON(gi->composite.gadget_driver.udc_name);
 
 	list_for_each_entry(f, &cfg->func_list, list) {
 		if (f->fi == fi) {
@@ -873,10 +876,10 @@ static int os_desc_unlink(struct config_item *os_desc_ci,
 	struct usb_composite_dev *cdev = &gi->cdev;
 
 	mutex_lock(&gi->lock);
-	if (gi->udc_name)
+	if (gi->composite.gadget_driver.udc_name)
 		unregister_gadget(gi);
 	cdev->os_desc_config = NULL;
-	WARN_ON(gi->udc_name);
+	WARN_ON(gi->composite.gadget_driver.udc_name);
 	mutex_unlock(&gi->lock);
 	return 0;
 }
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 898a570319f1..fb1fe96d3215 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/device.h>
+#include <linux/kfifo.h>
 
 #include <sound/core.h>
 #include <sound/initval.h>
@@ -75,6 +76,7 @@ struct f_midi {
 	struct usb_ep		*in_ep, *out_ep;
 	struct snd_card		*card;
 	struct snd_rawmidi	*rmidi;
+	u8			ms_id;
 
 	struct snd_rawmidi_substream *in_substream[MAX_PORTS];
 	struct snd_rawmidi_substream *out_substream[MAX_PORTS];
@@ -87,6 +89,9 @@ struct f_midi {
 	int index;
 	char *id;
 	unsigned int buflen, qlen;
+	/* This fifo is used as a buffer ring for pre-allocated IN usb_requests */
+	DECLARE_KFIFO_PTR(in_req_fifo, struct usb_request *);
+	unsigned int in_last_port;
 };
 
 static inline struct f_midi *func_to_midi(struct usb_function *f)
@@ -94,7 +99,7 @@ static inline struct f_midi *func_to_midi(struct usb_function *f)
 	return container_of(f, struct f_midi, func);
 }
 
-static void f_midi_transmit(struct f_midi *midi, struct usb_request *req);
+static void f_midi_transmit(struct f_midi *midi);
 
 DECLARE_UAC_AC_HEADER_DESCRIPTOR(1);
 DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1);
@@ -201,12 +206,6 @@ static inline struct usb_request *midi_alloc_ep_req(struct usb_ep *ep,
 	return alloc_ep_req(ep, length, length);
 }
 
-static void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
-	kfree(req->buf);
-	usb_ep_free_request(ep, req);
-}
-
 static const uint8_t f_midi_cin_length[] = {
 	0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
 };
@@ -258,7 +257,8 @@ f_midi_complete(struct usb_ep *ep, struct usb_request *req)
 		} else if (ep == midi->in_ep) {
 			/* Our transmit completed. See if there's more to go.
 			 * f_midi_transmit eats req, don't queue it again. */
-			f_midi_transmit(midi, req);
+			req->length = 0;
+			f_midi_transmit(midi);
 			return;
 		}
 		break;
@@ -269,10 +269,12 @@ f_midi_complete(struct usb_ep *ep, struct usb_request *req)
 	case -ESHUTDOWN:	/* disconnect from host */
 		VDBG(cdev, "%s gone (%d), %d/%d\n", ep->name, status,
 				req->actual, req->length);
-		if (ep == midi->out_ep)
+		if (ep == midi->out_ep) {
 			f_midi_handle_out_data(ep, req);
-
-		free_ep_req(ep, req);
+			/* We don't need to free IN requests because it's handled
+			 * by the midi->in_req_fifo. */
+			free_ep_req(ep, req);
+		}
 		return;
 
 	case -EOVERFLOW:	/* buffer overrun on read means that
@@ -324,12 +326,11 @@ static int f_midi_start_ep(struct f_midi *midi,
 static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 {
 	struct f_midi *midi = func_to_midi(f);
-	struct usb_composite_dev *cdev = f->config->cdev;
 	unsigned i;
 	int err;
 
-	/* For Control Device interface we do nothing */
-	if (intf == 0)
+	/* we only set alt for MIDIStreaming interface */
+	if (intf != midi->ms_id)
 		return 0;
 
 	err = f_midi_start_ep(midi, f, midi->in_ep);
@@ -340,23 +341,19 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 	if (err)
 		return err;
 
-	usb_ep_disable(midi->out_ep);
+	/* pre-allocate write usb requests to use on f_midi_transmit. */
+	while (kfifo_avail(&midi->in_req_fifo)) {
+		struct usb_request *req =
+			midi_alloc_ep_req(midi->in_ep, midi->buflen);
 
-	err = config_ep_by_speed(midi->gadget, f, midi->out_ep);
-	if (err) {
-		ERROR(cdev, "can't configure %s: %d\n",
-		      midi->out_ep->name, err);
-		return err;
-	}
+		if (req == NULL)
+			return -ENOMEM;
 
-	err = usb_ep_enable(midi->out_ep);
-	if (err) {
-		ERROR(cdev, "can't start %s: %d\n",
-		      midi->out_ep->name, err);
-		return err;
-	}
+		req->length = 0;
+		req->complete = f_midi_complete;
 
-	midi->out_ep->driver_data = midi;
+		kfifo_put(&midi->in_req_fifo, req);
+	}
 
 	/* allocate a bunch of read buffers and queue them all at once. */
 	for (i = 0; i < midi->qlen && err == 0; i++) {
@@ -368,9 +365,10 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 		req->complete = f_midi_complete;
 		err = usb_ep_queue(midi->out_ep, req, GFP_ATOMIC);
 		if (err) {
-			ERROR(midi, "%s queue req: %d\n",
+			ERROR(midi, "%s: couldn't enqueue request: %d\n",
 				    midi->out_ep->name, err);
 			free_ep_req(midi->out_ep, req);
+			return err;
 		}
 	}
 
@@ -381,6 +379,7 @@ static void f_midi_disable(struct usb_function *f)
 {
 	struct f_midi *midi = func_to_midi(f);
 	struct usb_composite_dev *cdev = f->config->cdev;
+	struct usb_request *req = NULL;
 
 	DBG(cdev, "disable\n");
 
@@ -390,6 +389,10 @@ static void f_midi_disable(struct usb_function *f)
 	 */
 	usb_ep_disable(midi->in_ep);
 	usb_ep_disable(midi->out_ep);
+
+	/* release IN requests */
+	while (kfifo_get(&midi->in_req_fifo, &req))
+		free_ep_req(midi->in_ep, req);
 }
 
 static int f_midi_snd_free(struct snd_device *device)
@@ -511,57 +514,113 @@ static void f_midi_transmit_byte(struct usb_request *req,
 	}
 }
 
-static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
+static void f_midi_drop_out_substreams(struct f_midi *midi)
 {
-	struct usb_ep *ep = midi->in_ep;
-	int i;
-
-	if (!ep)
-		return;
-
-	if (!req)
-		req = midi_alloc_ep_req(ep, midi->buflen);
-
-	if (!req) {
-		ERROR(midi, "%s: alloc_ep_request failed\n", __func__);
-		return;
-	}
-	req->length = 0;
-	req->complete = f_midi_complete;
+	unsigned int i;
 
 	for (i = 0; i < MAX_PORTS; i++) {
 		struct gmidi_in_port *port = midi->in_port[i];
 		struct snd_rawmidi_substream *substream = midi->in_substream[i];
 
-		if (!port || !port->active || !substream)
+		if (!port)
+			break;
+
+		if (!port->active || !substream)
 			continue;
 
-		while (req->length + 3 < midi->buflen) {
-			uint8_t b;
-			if (snd_rawmidi_transmit(substream, &b, 1) != 1) {
-				port->active = 0;
+		snd_rawmidi_drop_output(substream);
+	}
+}
+
+static void f_midi_transmit(struct f_midi *midi)
+{
+	struct usb_ep *ep = midi->in_ep;
+	bool active;
+
+	/* We only care about USB requests if IN endpoint is enabled */
+	if (!ep || !ep->enabled)
+		goto drop_out;
+
+	do {
+		struct usb_request *req = NULL;
+		unsigned int len, i;
+
+		active = false;
+
+		/* We peek the request in order to reuse it if it fails
+		 * to enqueue on its endpoint */
+		len = kfifo_peek(&midi->in_req_fifo, &req);
+		if (len != 1) {
+			ERROR(midi, "%s: Couldn't get usb request\n", __func__);
+			goto drop_out;
+		}
+
+		/* If buffer overrun, then we ignore this transmission.
+		 * IMPORTANT: This will cause the user-space rawmidi device to block until a) usb
+		 * requests have been completed or b) snd_rawmidi_write() times out. */
+		if (req->length > 0)
+			return;
+
+		for (i = midi->in_last_port; i < MAX_PORTS; i++) {
+			struct gmidi_in_port *port = midi->in_port[i];
+			struct snd_rawmidi_substream *substream = midi->in_substream[i];
+
+			if (!port) {
+				/* Reset counter when we reach the last available port */
+				midi->in_last_port = 0;
+				break;
+			}
+
+			if (!port->active || !substream)
+				continue;
+
+			while (req->length + 3 < midi->buflen) {
+				uint8_t b;
+
+				if (snd_rawmidi_transmit(substream, &b, 1) != 1) {
+					port->active = 0;
+					break;
+				}
+				f_midi_transmit_byte(req, port, b);
+			}
+
+			active = !!port->active;
+			/* Check if last port is still active, which means that
+			 * there is still data on that substream but this current
+			 * request run out of space. */
+			if (active) {
+				midi->in_last_port = i;
+				/* There is no need to re-iterate though midi ports. */
 				break;
 			}
-			f_midi_transmit_byte(req, port, b);
 		}
-	}
 
-	if (req->length > 0 && ep->enabled) {
-		int err;
+		if (req->length > 0) {
+			int err;
 
-		err = usb_ep_queue(ep, req, GFP_ATOMIC);
-		if (err < 0)
-			ERROR(midi, "%s queue req: %d\n",
-			      midi->in_ep->name, err);
-	} else {
-		free_ep_req(ep, req);
-	}
+			err = usb_ep_queue(ep, req, GFP_ATOMIC);
+			if (err < 0) {
+				ERROR(midi, "%s failed to queue req: %d\n",
+				      midi->in_ep->name, err);
+				req->length = 0; /* Re-use request next time. */
+			} else {
+				/* Upon success, put request at the back of the queue. */
+				kfifo_skip(&midi->in_req_fifo);
+				kfifo_put(&midi->in_req_fifo, req);
+			}
+		}
+	} while (active);
+
+	return;
+
+drop_out:
+	f_midi_drop_out_substreams(midi);
 }
 
 static void f_midi_in_tasklet(unsigned long data)
 {
 	struct f_midi *midi = (struct f_midi *) data;
-	f_midi_transmit(midi, NULL);
+	f_midi_transmit(midi);
 }
 
 static int f_midi_in_open(struct snd_rawmidi_substream *substream)
@@ -687,6 +746,7 @@ static int f_midi_register_card(struct f_midi *midi)
 		goto fail;
 	}
 	midi->rmidi = rmidi;
+	midi->in_last_port = 0;
 	strcpy(rmidi->name, card->shortname);
 	rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
 			    SNDRV_RAWMIDI_INFO_INPUT |
@@ -755,6 +815,7 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f)
 		goto fail;
 	ms_interface_desc.bInterfaceNumber = status;
 	ac_header_desc.baInterfaceNr[0] = status;
+	midi->ms_id = status;
 
 	status = -ENODEV;
 
@@ -1075,6 +1136,7 @@ static void f_midi_free(struct usb_function *f)
 	mutex_lock(&opts->lock);
 	for (i = opts->in_ports - 1; i >= 0; --i)
 		kfree(midi->in_port[i]);
+	kfifo_free(&midi->in_req_fifo);
 	kfree(midi);
 	--opts->refcnt;
 	mutex_unlock(&opts->lock);
@@ -1148,6 +1210,12 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
 	midi->index = opts->index;
 	midi->buflen = opts->buflen;
 	midi->qlen = opts->qlen;
+	midi->in_last_port = 0;
+
+	status = kfifo_alloc(&midi->in_req_fifo, midi->qlen, GFP_KERNEL);
+	if (status)
+		goto setup_fail;
+
 	++opts->refcnt;
 	mutex_unlock(&opts->lock);
 
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 9f3ced62d916..242ba5caffe5 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -34,13 +34,6 @@
  * plus two that support control-OUT tests.  If the optional "autoresume"
  * mode is enabled, it provides good functional coverage for the "USBCV"
  * test harness from USB-IF.
- *
- * Note that because this doesn't queue more than one request at a time,
- * some other function must be used to test queueing logic.  The network
- * link (g_ether) is the best overall option for that, since its TX and RX
- * queues are relatively independent, will receive a range of packet sizes,
- * and can often be made to run out completely.  Those issues are important
- * when stress testing peripheral controller drivers.
  */
 struct f_sourcesink {
 	struct usb_function	function;
@@ -57,6 +50,8 @@ struct f_sourcesink {
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
 	unsigned buflen;
+	unsigned bulk_qlen;
+	unsigned iso_qlen;
 };
 
 static inline struct f_sourcesink *func_to_ss(struct usb_function *f)
@@ -303,12 +298,6 @@ static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
 	return alloc_ep_req(ep, len, ss->buflen);
 }
 
-void free_ep_req(struct usb_ep *ep, struct usb_request *req)
-{
-	kfree(req->buf);
-	usb_ep_free_request(ep, req);
-}
-
 static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
 {
 	int			value;
@@ -595,31 +584,33 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 {
 	struct usb_ep		*ep;
 	struct usb_request	*req;
-	int			i, size, status;
-
-	for (i = 0; i < 8; i++) {
-		if (is_iso) {
-			switch (speed) {
-			case USB_SPEED_SUPER:
-				size = ss->isoc_maxpacket *
-						(ss->isoc_mult + 1) *
-						(ss->isoc_maxburst + 1);
-				break;
-			case USB_SPEED_HIGH:
-				size = ss->isoc_maxpacket * (ss->isoc_mult + 1);
-				break;
-			default:
-				size = ss->isoc_maxpacket > 1023 ?
-						1023 : ss->isoc_maxpacket;
-				break;
-			}
-			ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
-			req = ss_alloc_ep_req(ep, size);
-		} else {
-			ep = is_in ? ss->in_ep : ss->out_ep;
-			req = ss_alloc_ep_req(ep, 0);
+	int			i, size, qlen, status = 0;
+
+	if (is_iso) {
+		switch (speed) {
+		case USB_SPEED_SUPER:
+			size = ss->isoc_maxpacket *
+					(ss->isoc_mult + 1) *
+					(ss->isoc_maxburst + 1);
+			break;
+		case USB_SPEED_HIGH:
+			size = ss->isoc_maxpacket * (ss->isoc_mult + 1);
+			break;
+		default:
+			size = ss->isoc_maxpacket > 1023 ?
+					1023 : ss->isoc_maxpacket;
+			break;
 		}
+		ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
+		qlen = ss->iso_qlen;
+	} else {
+		ep = is_in ? ss->in_ep : ss->out_ep;
+		qlen = ss->bulk_qlen;
+		size = 0;
+	}
 
+	for (i = 0; i < qlen; i++) {
+		req = ss_alloc_ep_req(ep, size);
 		if (!req)
 			return -ENOMEM;
 
@@ -638,10 +629,8 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 			      is_iso ? "ISO-" : "", is_in ? "IN" : "OUT",
 			      ep->name, status);
 			free_ep_req(ep, req);
+			return status;
 		}
-
-		if (!is_iso)
-			break;
 	}
 
 	return status;
@@ -869,6 +858,8 @@ static struct usb_function *source_sink_alloc_func(
 	ss->isoc_mult = ss_opts->isoc_mult;
 	ss->isoc_maxburst = ss_opts->isoc_maxburst;
 	ss->buflen = ss_opts->bulk_buflen;
+	ss->bulk_qlen = ss_opts->bulk_qlen;
+	ss->iso_qlen = ss_opts->iso_qlen;
 
 	ss->function.name = "source/sink";
 	ss->function.bind = sourcesink_bind;
@@ -1153,6 +1144,82 @@ end:
 
 CONFIGFS_ATTR(f_ss_opts_, bulk_buflen);
 
+static ssize_t f_ss_opts_bulk_qlen_show(struct config_item *item, char *page)
+{
+	struct f_ss_opts *opts = to_f_ss_opts(item);
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, "%u\n", opts->bulk_qlen);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t f_ss_opts_bulk_qlen_store(struct config_item *item,
+					   const char *page, size_t len)
+{
+	struct f_ss_opts *opts = to_f_ss_opts(item);
+	int ret;
+	u32 num;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	ret = kstrtou32(page, 0, &num);
+	if (ret)
+		goto end;
+
+	opts->bulk_qlen = num;
+	ret = len;
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+CONFIGFS_ATTR(f_ss_opts_, bulk_qlen);
+
+static ssize_t f_ss_opts_iso_qlen_show(struct config_item *item, char *page)
+{
+	struct f_ss_opts *opts = to_f_ss_opts(item);
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, "%u\n", opts->iso_qlen);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t f_ss_opts_iso_qlen_store(struct config_item *item,
+					   const char *page, size_t len)
+{
+	struct f_ss_opts *opts = to_f_ss_opts(item);
+	int ret;
+	u32 num;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+
+	ret = kstrtou32(page, 0, &num);
+	if (ret)
+		goto end;
+
+	opts->iso_qlen = num;
+	ret = len;
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+CONFIGFS_ATTR(f_ss_opts_, iso_qlen);
+
 static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_attr_pattern,
 	&f_ss_opts_attr_isoc_interval,
@@ -1160,6 +1227,8 @@ static struct configfs_attribute *ss_attrs[] = {
 	&f_ss_opts_attr_isoc_mult,
 	&f_ss_opts_attr_isoc_maxburst,
 	&f_ss_opts_attr_bulk_buflen,
+	&f_ss_opts_attr_bulk_qlen,
+	&f_ss_opts_attr_iso_qlen,
 	NULL,
 };
 
@@ -1189,6 +1258,8 @@ static struct usb_function_instance *source_sink_alloc_inst(void)
 	ss_opts->isoc_interval = GZERO_ISOC_INTERVAL;
 	ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET;
 	ss_opts->bulk_buflen = GZERO_BULK_BUFLEN;
+	ss_opts->bulk_qlen = GZERO_SS_BULK_QLEN;
+	ss_opts->iso_qlen = GZERO_SS_ISO_QLEN;
 
 	config_group_init_type_name(&ss_opts->func_inst.group, "",
 				    &ss_func_type);
diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h
index 15f180904f8a..492924d0d599 100644
--- a/drivers/usb/gadget/function/g_zero.h
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -10,6 +10,8 @@
 #define GZERO_QLEN		32
 #define GZERO_ISOC_INTERVAL	4
 #define GZERO_ISOC_MAXPACKET	1024
+#define GZERO_SS_BULK_QLEN	1
+#define GZERO_SS_ISO_QLEN	8
 
 struct usb_zero_options {
 	unsigned pattern;
@@ -19,6 +21,8 @@ struct usb_zero_options {
 	unsigned isoc_maxburst;
 	unsigned bulk_buflen;
 	unsigned qlen;
+	unsigned ss_bulk_qlen;
+	unsigned ss_iso_qlen;
 };
 
 struct f_ss_opts {
@@ -29,6 +33,8 @@ struct f_ss_opts {
 	unsigned isoc_mult;
 	unsigned isoc_maxburst;
 	unsigned bulk_buflen;
+	unsigned bulk_qlen;
+	unsigned iso_qlen;
 
 	/*
 	 * Read/write access to configfs attributes is handled by configfs.
@@ -59,7 +65,6 @@ void lb_modexit(void);
 int lb_modinit(void);
 
 /* common utilities */
-void free_ep_req(struct usb_ep *ep, struct usb_request *req);
 void disable_endpoints(struct usb_composite_dev *cdev,
 		struct usb_ep *in, struct usb_ep *out,
 		struct usb_ep *iso_in, struct usb_ep *iso_out);
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index 6554322af2c1..637809e3bd0d 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -143,21 +143,11 @@ static inline int qlen(struct usb_gadget *gadget, unsigned qmult)
 
 static int ueth_change_mtu(struct net_device *net, int new_mtu)
 {
-	struct eth_dev	*dev = netdev_priv(net);
-	unsigned long	flags;
-	int		status = 0;
+	if (new_mtu <= ETH_HLEN || new_mtu > GETHER_MAX_ETH_FRAME_LEN)
+		return -ERANGE;
+	net->mtu = new_mtu;
 
-	/* don't change MTU on "live" link (peer won't know) */
-	spin_lock_irqsave(&dev->lock, flags);
-	if (dev->port_usb)
-		status = -EBUSY;
-	else if (new_mtu <= ETH_HLEN || new_mtu > GETHER_MAX_ETH_FRAME_LEN)
-		status = -ERANGE;
-	else
-		net->mtu = new_mtu;
-	spin_unlock_irqrestore(&dev->lock, flags);
-
-	return status;
+	return 0;
 }
 
 static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p)
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index f7771d86ad6c..6af145f2a99d 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -27,6 +27,8 @@
 #include <linux/slab.h>
 #include <linux/export.h>
 #include <linux/module.h>
+#include <linux/console.h>
+#include <linux/kthread.h>
 
 #include "u_serial.h"
 
@@ -79,6 +81,7 @@
  */
 #define QUEUE_SIZE		16
 #define WRITE_BUF_SIZE		8192		/* TX only */
+#define GS_CONSOLE_BUF_SIZE	8192
 
 /* circular buffer */
 struct gs_buf {
@@ -88,6 +91,17 @@ struct gs_buf {
 	char			*buf_put;
 };
 
+/* console info */
+struct gscons_info {
+	struct gs_port		*port;
+	struct task_struct	*console_thread;
+	struct gs_buf		con_buf;
+	/* protect the buf and busy flag */
+	spinlock_t		con_lock;
+	int			req_busy;
+	struct usb_request	*console_req;
+};
+
 /*
  * The port structure holds info for each port, one for each minor number
  * (and thus for each /dev/ node).
@@ -1023,6 +1037,246 @@ static const struct tty_operations gs_tty_ops = {
 
 static struct tty_driver *gs_tty_driver;
 
+#ifdef CONFIG_U_SERIAL_CONSOLE
+
+static struct gscons_info gscons_info;
+static struct console gserial_cons;
+
+static struct usb_request *gs_request_new(struct usb_ep *ep)
+{
+	struct usb_request *req = usb_ep_alloc_request(ep, GFP_ATOMIC);
+	if (!req)
+		return NULL;
+
+	req->buf = kmalloc(ep->maxpacket, GFP_ATOMIC);
+	if (!req->buf) {
+		usb_ep_free_request(ep, req);
+		return NULL;
+	}
+
+	return req;
+}
+
+static void gs_request_free(struct usb_request *req, struct usb_ep *ep)
+{
+	if (!req)
+		return;
+
+	kfree(req->buf);
+	usb_ep_free_request(ep, req);
+}
+
+static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
+{
+	struct gscons_info *info = &gscons_info;
+
+	switch (req->status) {
+	default:
+		pr_warn("%s: unexpected %s status %d\n",
+			__func__, ep->name, req->status);
+	case 0:
+		/* normal completion */
+		spin_lock(&info->con_lock);
+		info->req_busy = 0;
+		spin_unlock(&info->con_lock);
+
+		wake_up_process(info->console_thread);
+		break;
+	case -ESHUTDOWN:
+		/* disconnect */
+		pr_vdebug("%s: %s shutdown\n", __func__, ep->name);
+		break;
+	}
+}
+
+static int gs_console_connect(int port_num)
+{
+	struct gscons_info *info = &gscons_info;
+	struct gs_port *port;
+	struct usb_ep *ep;
+
+	if (port_num != gserial_cons.index) {
+		pr_err("%s: port num [%d] is not support console\n",
+		       __func__, port_num);
+		return -ENXIO;
+	}
+
+	port = ports[port_num].port;
+	ep = port->port_usb->in;
+	if (!info->console_req) {
+		info->console_req = gs_request_new(ep);
+		if (!info->console_req)
+			return -ENOMEM;
+		info->console_req->complete = gs_complete_out;
+	}
+
+	info->port = port;
+	spin_lock(&info->con_lock);
+	info->req_busy = 0;
+	spin_unlock(&info->con_lock);
+	pr_vdebug("port[%d] console connect!\n", port_num);
+	return 0;
+}
+
+static void gs_console_disconnect(struct usb_ep *ep)
+{
+	struct gscons_info *info = &gscons_info;
+	struct usb_request *req = info->console_req;
+
+	gs_request_free(req, ep);
+	info->console_req = NULL;
+}
+
+static int gs_console_thread(void *data)
+{
+	struct gscons_info *info = &gscons_info;
+	struct gs_port *port;
+	struct usb_request *req;
+	struct usb_ep *ep;
+	int xfer, ret, count, size;
+
+	do {
+		port = info->port;
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (!port || !port->port_usb
+		    || !port->port_usb->in || !info->console_req)
+			goto sched;
+
+		req = info->console_req;
+		ep = port->port_usb->in;
+
+		spin_lock_irq(&info->con_lock);
+		count = gs_buf_data_avail(&info->con_buf);
+		size = ep->maxpacket;
+
+		if (count > 0 && !info->req_busy) {
+			set_current_state(TASK_RUNNING);
+			if (count < size)
+				size = count;
+
+			xfer = gs_buf_get(&info->con_buf, req->buf, size);
+			req->length = xfer;
+
+			spin_unlock(&info->con_lock);
+			ret = usb_ep_queue(ep, req, GFP_ATOMIC);
+			spin_lock(&info->con_lock);
+			if (ret < 0)
+				info->req_busy = 0;
+			else
+				info->req_busy = 1;
+
+			spin_unlock_irq(&info->con_lock);
+		} else {
+			spin_unlock_irq(&info->con_lock);
+sched:
+			if (kthread_should_stop()) {
+				set_current_state(TASK_RUNNING);
+				break;
+			}
+			schedule();
+		}
+	} while (1);
+
+	return 0;
+}
+
+static int gs_console_setup(struct console *co, char *options)
+{
+	struct gscons_info *info = &gscons_info;
+	int status;
+
+	info->port = NULL;
+	info->console_req = NULL;
+	info->req_busy = 0;
+	spin_lock_init(&info->con_lock);
+
+	status = gs_buf_alloc(&info->con_buf, GS_CONSOLE_BUF_SIZE);
+	if (status) {
+		pr_err("%s: allocate console buffer failed\n", __func__);
+		return status;
+	}
+
+	info->console_thread = kthread_create(gs_console_thread,
+					      co, "gs_console");
+	if (IS_ERR(info->console_thread)) {
+		pr_err("%s: cannot create console thread\n", __func__);
+		gs_buf_free(&info->con_buf);
+		return PTR_ERR(info->console_thread);
+	}
+	wake_up_process(info->console_thread);
+
+	return 0;
+}
+
+static void gs_console_write(struct console *co,
+			     const char *buf, unsigned count)
+{
+	struct gscons_info *info = &gscons_info;
+	unsigned long flags;
+
+	spin_lock_irqsave(&info->con_lock, flags);
+	gs_buf_put(&info->con_buf, buf, count);
+	spin_unlock_irqrestore(&info->con_lock, flags);
+
+	wake_up_process(info->console_thread);
+}
+
+static struct tty_driver *gs_console_device(struct console *co, int *index)
+{
+	struct tty_driver **p = (struct tty_driver **)co->data;
+
+	if (!*p)
+		return NULL;
+
+	*index = co->index;
+	return *p;
+}
+
+static struct console gserial_cons = {
+	.name =		"ttyGS",
+	.write =	gs_console_write,
+	.device =	gs_console_device,
+	.setup =	gs_console_setup,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+	.data =		&gs_tty_driver,
+};
+
+static void gserial_console_init(void)
+{
+	register_console(&gserial_cons);
+}
+
+static void gserial_console_exit(void)
+{
+	struct gscons_info *info = &gscons_info;
+
+	unregister_console(&gserial_cons);
+	kthread_stop(info->console_thread);
+	gs_buf_free(&info->con_buf);
+}
+
+#else
+
+static int gs_console_connect(int port_num)
+{
+	return 0;
+}
+
+static void gs_console_disconnect(struct usb_ep *ep)
+{
+}
+
+static void gserial_console_init(void)
+{
+}
+
+static void gserial_console_exit(void)
+{
+}
+
+#endif
+
 static int
 gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
 {
@@ -1096,6 +1350,7 @@ void gserial_free_line(unsigned char port_num)
 
 	gserial_free_port(port);
 	tty_unregister_device(gs_tty_driver, port_num);
+	gserial_console_exit();
 }
 EXPORT_SYMBOL_GPL(gserial_free_line);
 
@@ -1138,6 +1393,7 @@ int gserial_alloc_line(unsigned char *line_num)
 		goto err;
 	}
 	*line_num = port_num;
+	gserial_console_init();
 err:
 	return ret;
 }
@@ -1219,6 +1475,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
 			gser->disconnect(gser);
 	}
 
+	status = gs_console_connect(port_num);
 	spin_unlock_irqrestore(&port->port_lock, flags);
 
 	return status;
@@ -1277,6 +1534,7 @@ void gserial_disconnect(struct gserial *gser)
 	port->read_allocated = port->read_started =
 		port->write_allocated = port->write_started = 0;
 
+	gs_console_disconnect(gser->in);
 	spin_unlock_irqrestore(&port->port_lock, flags);
 }
 EXPORT_SYMBOL_GPL(gserial_disconnect);
diff --git a/drivers/usb/gadget/legacy/acm_ms.c b/drivers/usb/gadget/legacy/acm_ms.c
index 4b158e2d1e57..c16089efc322 100644
--- a/drivers/usb/gadget/legacy/acm_ms.c
+++ b/drivers/usb/gadget/legacy/acm_ms.c
@@ -40,7 +40,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	.bDeviceClass =		USB_CLASS_MISC /* 0xEF */,
 	.bDeviceSubClass =	2,
diff --git a/drivers/usb/gadget/legacy/audio.c b/drivers/usb/gadget/legacy/audio.c
index 685cf3b4b78f..5d7b3c6a422b 100644
--- a/drivers/usb/gadget/legacy/audio.c
+++ b/drivers/usb/gadget/legacy/audio.c
@@ -123,7 +123,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x200),
+	/* .bcdUSB = DYNAMIC */
 
 #ifdef CONFIG_GADGET_UAC1
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
diff --git a/drivers/usb/gadget/legacy/cdc2.c b/drivers/usb/gadget/legacy/cdc2.c
index ecd8c8d62f2e..51c08682de84 100644
--- a/drivers/usb/gadget/legacy/cdc2.c
+++ b/drivers/usb/gadget/legacy/cdc2.c
@@ -43,7 +43,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	.bDeviceClass =		USB_CLASS_COMM,
 	.bDeviceSubClass =	0,
diff --git a/drivers/usb/gadget/legacy/ether.c b/drivers/usb/gadget/legacy/ether.c
index 31e9160223e9..25a2c2e48592 100644
--- a/drivers/usb/gadget/legacy/ether.c
+++ b/drivers/usb/gadget/legacy/ether.c
@@ -151,7 +151,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16 (0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	.bDeviceClass =		USB_CLASS_COMM,
 	.bDeviceSubClass =	0,
diff --git a/drivers/usb/gadget/legacy/g_ffs.c b/drivers/usb/gadget/legacy/g_ffs.c
index 320a81b2baa6..f85639ef8a8f 100644
--- a/drivers/usb/gadget/legacy/g_ffs.c
+++ b/drivers/usb/gadget/legacy/g_ffs.c
@@ -69,7 +69,7 @@ static struct usb_device_descriptor gfs_dev_desc = {
 	.bLength		= sizeof gfs_dev_desc,
 	.bDescriptorType	= USB_DT_DEVICE,
 
-	.bcdUSB			= cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass		= USB_CLASS_PER_INTERFACE,
 
 	.idVendor		= cpu_to_le16(GFS_VENDOR_ID),
diff --git a/drivers/usb/gadget/legacy/gmidi.c b/drivers/usb/gadget/legacy/gmidi.c
index 8a18348ae86e..fc2ac150f5ff 100644
--- a/drivers/usb/gadget/legacy/gmidi.c
+++ b/drivers/usb/gadget/legacy/gmidi.c
@@ -21,19 +21,12 @@
 /* #define VERBOSE_DEBUG */
 
 #include <linux/kernel.h>
-#include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/device.h>
 
-#include <sound/core.h>
 #include <sound/initval.h>
-#include <sound/rawmidi.h>
 
-#include <linux/usb/ch9.h>
 #include <linux/usb/composite.h>
 #include <linux/usb/gadget.h>
-#include <linux/usb/audio.h>
-#include <linux/usb/midi.h>
 
 #include "u_midi.h"
 
@@ -42,7 +35,6 @@
 MODULE_AUTHOR("Ben Williamson");
 MODULE_LICENSE("GPL v2");
 
-static const char shortname[] = "g_midi";
 static const char longname[] = "MIDI Gadget";
 
 USB_GADGET_COMPOSITE_OPTIONS();
@@ -61,7 +53,7 @@ MODULE_PARM_DESC(buflen, "MIDI buffer length");
 
 static unsigned int qlen = 32;
 module_param(qlen, uint, S_IRUGO);
-MODULE_PARM_DESC(qlen, "USB read request queue length");
+MODULE_PARM_DESC(qlen, "USB read and write request queue length");
 
 static unsigned int in_ports = 1;
 module_param(in_ports, uint, S_IRUGO);
@@ -86,7 +78,7 @@ MODULE_PARM_DESC(out_ports, "Number of MIDI output ports");
 static struct usb_device_descriptor device_desc = {
 	.bLength =		USB_DT_DEVICE_SIZE,
 	.bDescriptorType =	USB_DT_DEVICE,
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
 	.idVendor =		cpu_to_le16(DRIVER_VENDOR_NUM),
 	.idProduct =		cpu_to_le16(DRIVER_PRODUCT_NUM),
diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c
index 7e5d2c48476e..a71a884f79fc 100644
--- a/drivers/usb/gadget/legacy/hid.c
+++ b/drivers/usb/gadget/legacy/hid.c
@@ -47,7 +47,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	/* .bDeviceClass =		USB_CLASS_COMM, */
 	/* .bDeviceSubClass =	0, */
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index f454c7af489c..365afd7e14f8 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1137,10 +1137,9 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 						dev->gadget->ep0, dev->req,
 						GFP_KERNEL);
 				}
+				spin_lock_irq(&dev->lock);
 				if (retval < 0) {
-					spin_lock_irq (&dev->lock);
 					clean_req (dev->gadget->ep0, dev->req);
-					spin_unlock_irq (&dev->lock);
 				} else
 					retval = len;
 
diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c
index bda3c519110f..e61af53c7d2b 100644
--- a/drivers/usb/gadget/legacy/mass_storage.c
+++ b/drivers/usb/gadget/legacy/mass_storage.c
@@ -55,7 +55,7 @@ static struct usb_device_descriptor msg_device_desc = {
 	.bLength =		sizeof msg_device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
 
 	/* Vendor and product id can be overridden by module parameters.  */
diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c
index 4fe794ddcd49..229d704a620b 100644
--- a/drivers/usb/gadget/legacy/multi.c
+++ b/drivers/usb/gadget/legacy/multi.c
@@ -67,7 +67,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	.bDeviceClass =		USB_CLASS_MISC /* 0xEF */,
 	.bDeviceSubClass =	2,
diff --git a/drivers/usb/gadget/legacy/ncm.c b/drivers/usb/gadget/legacy/ncm.c
index 2bae4381332d..0aba68253e3d 100644
--- a/drivers/usb/gadget/legacy/ncm.c
+++ b/drivers/usb/gadget/legacy/ncm.c
@@ -49,7 +49,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16 (0x0200),
+	/* .bcdUSB = DYNAMIC */
 
 	.bDeviceClass =		USB_CLASS_COMM,
 	.bDeviceSubClass =	0,
diff --git a/drivers/usb/gadget/legacy/nokia.c b/drivers/usb/gadget/legacy/nokia.c
index 8b3f6fb1825d..09975046c694 100644
--- a/drivers/usb/gadget/legacy/nokia.c
+++ b/drivers/usb/gadget/legacy/nokia.c
@@ -89,7 +89,7 @@ static struct usb_gadget_strings *dev_strings[] = {
 static struct usb_device_descriptor device_desc = {
 	.bLength		= USB_DT_DEVICE_SIZE,
 	.bDescriptorType	= USB_DT_DEVICE,
-	.bcdUSB			= cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass		= USB_CLASS_COMM,
 	.idVendor		= cpu_to_le16(NOKIA_VENDOR_ID),
 	.idProduct		= cpu_to_le16(NOKIA_PRODUCT_ID),
diff --git a/drivers/usb/gadget/legacy/printer.c b/drivers/usb/gadget/legacy/printer.c
index a22d30a4def1..6f969a86175c 100644
--- a/drivers/usb/gadget/legacy/printer.c
+++ b/drivers/usb/gadget/legacy/printer.c
@@ -71,7 +71,7 @@ static struct usb_function *f_printer;
 static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
 	.bDeviceSubClass =	0,
 	.bDeviceProtocol =	0,
diff --git a/drivers/usb/gadget/legacy/serial.c b/drivers/usb/gadget/legacy/serial.c
index c5d42e0347a9..9d89adce756d 100644
--- a/drivers/usb/gadget/legacy/serial.c
+++ b/drivers/usb/gadget/legacy/serial.c
@@ -65,7 +65,7 @@ static struct usb_gadget_strings *dev_strings[] = {
 static struct usb_device_descriptor device_desc = {
 	.bLength =		USB_DT_DEVICE_SIZE,
 	.bDescriptorType =	USB_DT_DEVICE,
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	/* .bDeviceClass = f(use_acm) */
 	.bDeviceSubClass =	0,
 	.bDeviceProtocol =	0,
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 22e56158d585..7857fa411636 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -1974,7 +1974,7 @@ static struct usb_descriptor_header *uasp_ss_function_desc[] = {
 static struct usb_device_descriptor usbg_device_desc = {
 	.bLength =		sizeof(usbg_device_desc),
 	.bDescriptorType =	USB_DT_DEVICE,
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
 	.idVendor =		cpu_to_le16(UAS_VENDOR_ID),
 	.idProduct =		cpu_to_le16(UAS_PRODUCT_ID),
diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c
index 72c976bf3530..f9661cd627c8 100644
--- a/drivers/usb/gadget/legacy/webcam.c
+++ b/drivers/usb/gadget/legacy/webcam.c
@@ -77,7 +77,7 @@ static struct usb_function *f_uvc;
 static struct usb_device_descriptor webcam_device_descriptor = {
 	.bLength		= USB_DT_DEVICE_SIZE,
 	.bDescriptorType	= USB_DT_DEVICE,
-	.bcdUSB			= cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass		= USB_CLASS_MISC,
 	.bDeviceSubClass	= 0x02,
 	.bDeviceProtocol	= 0x01,
diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c
index 37a410056fed..d02e2ce73ea5 100644
--- a/drivers/usb/gadget/legacy/zero.c
+++ b/drivers/usb/gadget/legacy/zero.c
@@ -68,6 +68,8 @@ static struct usb_zero_options gzero_options = {
 	.isoc_maxpacket = GZERO_ISOC_MAXPACKET,
 	.bulk_buflen = GZERO_BULK_BUFLEN,
 	.qlen = GZERO_QLEN,
+	.ss_bulk_qlen = GZERO_SS_BULK_QLEN,
+	.ss_iso_qlen = GZERO_SS_ISO_QLEN,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -113,7 +115,7 @@ static struct usb_device_descriptor device_desc = {
 	.bLength =		sizeof device_desc,
 	.bDescriptorType =	USB_DT_DEVICE,
 
-	.bcdUSB =		cpu_to_le16(0x0200),
+	/* .bcdUSB = DYNAMIC */
 	.bDeviceClass =		USB_CLASS_VENDOR_SPEC,
 
 	.idVendor =		cpu_to_le16(DRIVER_VENDOR_NUM),
@@ -255,6 +257,14 @@ static struct usb_function_instance *func_inst_lb;
 module_param_named(qlen, gzero_options.qlen, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(qlen, "depth of loopback queue");
 
+module_param_named(ss_bulk_qlen, gzero_options.ss_bulk_qlen, uint,
+		S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(bulk_qlen, "depth of sourcesink queue for bulk transfer");
+
+module_param_named(ss_iso_qlen, gzero_options.ss_iso_qlen, uint,
+		S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(iso_qlen, "depth of sourcesink queue for iso transfer");
+
 static int zero_bind(struct usb_composite_dev *cdev)
 {
 	struct f_ss_opts	*ss_opts;
@@ -285,6 +295,8 @@ static int zero_bind(struct usb_composite_dev *cdev)
 	ss_opts->isoc_mult = gzero_options.isoc_mult;
 	ss_opts->isoc_maxburst = gzero_options.isoc_maxburst;
 	ss_opts->bulk_buflen = gzero_options.bulk_buflen;
+	ss_opts->bulk_qlen = gzero_options.ss_bulk_qlen;
+	ss_opts->iso_qlen = gzero_options.ss_iso_qlen;
 
 	func_ss = usb_get_function(func_inst_ss);
 	if (IS_ERR(func_ss)) {
diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c
index c6276f0268ae..4bc7eea8bfc8 100644
--- a/drivers/usb/gadget/u_f.c
+++ b/drivers/usb/gadget/u_f.c
@@ -11,7 +11,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/usb/gadget.h>
 #include "u_f.h"
 
 struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len)
diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h
index 1d5f0eb68552..4247cc098a89 100644
--- a/drivers/usb/gadget/u_f.h
+++ b/drivers/usb/gadget/u_f.h
@@ -16,6 +16,8 @@
 #ifndef __U_F_H__
 #define __U_F_H__
 
+#include <linux/usb/gadget.h>
+
 /* Variable Length Array Macros **********************************************/
 #define vla_group(groupname) size_t groupname##__next = 0
 #define vla_group_size(groupname) groupname##__next
@@ -45,8 +47,12 @@
 struct usb_ep;
 struct usb_request;
 
+/* Requests allocated via alloc_ep_req() must be freed by free_ep_req(). */
 struct usb_request *alloc_ep_req(struct usb_ep *ep, int len, int default_len);
+static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req)
+{
+	kfree(req->buf);
+	usb_ep_free_request(ep, req);
+}
 
 #endif /* __U_F_H__ */
-
-
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index cdbff54e07ac..753c29bd11ad 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -174,6 +174,17 @@ config USB_RENESAS_USBHS_UDC
 	   dynamically linked module called "renesas_usbhs" and force all
 	   gadget drivers to also be dynamically linked.
 
+config USB_RENESAS_USB3
+	tristate 'Renesas USB3.0 Peripheral controller'
+	depends on ARCH_SHMOBILE || COMPILE_TEST
+	help
+	   Renesas USB3.0 Peripheral controller is a USB peripheral controller
+	   that supports super, high, and full speed USB 3.0 data transfers.
+
+	   Say "y" to link the driver statically, or "m" to build a
+	   dynamically linked module called "renesas_usb3" and force all
+	   gadget drivers to also be dynamically linked.
+
 config USB_PXA27X
 	tristate "PXA 27x"
 	help
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index fba2049bf985..dfee53446319 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -19,6 +19,7 @@ fsl_usb2_udc-y			:= fsl_udc_core.o
 fsl_usb2_udc-$(CONFIG_ARCH_MXC)	+= fsl_mxc_udc.o
 obj-$(CONFIG_USB_M66592)	+= m66592-udc.o
 obj-$(CONFIG_USB_R8A66597)	+= r8a66597-udc.o
+obj-$(CONFIG_USB_RENESAS_USB3)	+= renesas_usb3.o
 obj-$(CONFIG_USB_FSL_QE)	+= fsl_qe_udc.o
 obj-$(CONFIG_USB_S3C_HSUDC)	+= s3c-hsudc.o
 obj-$(CONFIG_USB_LPC32XX)	+= lpc32xx_udc.o
diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 8cbb00325824..f5fccb3e4152 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -1083,7 +1083,7 @@ static int bcm63xx_ep_disable(struct usb_ep *ep)
 	struct bcm63xx_ep *bep = our_ep(ep);
 	struct bcm63xx_udc *udc = bep->udc;
 	struct iudma_ch *iudma = bep->iudma;
-	struct list_head *pos, *n;
+	struct bcm63xx_req *breq, *n;
 	unsigned long flags;
 
 	if (!ep || !ep->desc)
@@ -1099,10 +1099,7 @@ static int bcm63xx_ep_disable(struct usb_ep *ep)
 	iudma_reset_channel(udc, iudma);
 
 	if (!list_empty(&bep->queue)) {
-		list_for_each_safe(pos, n, &bep->queue) {
-			struct bcm63xx_req *breq =
-				list_entry(pos, struct bcm63xx_req, queue);
-
+		list_for_each_entry_safe(breq, n, &bep->queue, queue) {
 			usb_gadget_unmap_request(&udc->gadget, &breq->req,
 						 iudma->is_tx);
 			list_del(&breq->queue);
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 5fb6f8b4f0b4..53c0692f1b09 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -38,7 +38,7 @@
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 #include <linux/usb/otg.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/qe.h>
 #include <asm/cpm.h>
 #include <asm/dma.h>
 #include <asm/reg.h>
diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index b9429bc42511..39b7136d31d9 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -253,13 +253,12 @@ static struct gr_dma_desc *gr_alloc_dma_desc(struct gr_ep *ep, gfp_t gfp_flags)
 	dma_addr_t paddr;
 	struct gr_dma_desc *dma_desc;
 
-	dma_desc = dma_pool_alloc(ep->dev->desc_pool, gfp_flags, &paddr);
+	dma_desc = dma_pool_zalloc(ep->dev->desc_pool, gfp_flags, &paddr);
 	if (!dma_desc) {
 		dev_err(ep->dev->dev, "Could not allocate from DMA pool\n");
 		return NULL;
 	}
 
-	memset(dma_desc, 0, sizeof(*dma_desc));
 	dma_desc->paddr = paddr;
 
 	return dma_desc;
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 00b5006baf15..79fe6b77ee44 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -28,42 +28,29 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
+#include <linux/clk.h>
 #include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/list.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/proc_fs.h>
-#include <linux/clk.h>
+#include <linux/slab.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
-#include <linux/i2c.h>
-#include <linux/kthread.h>
-#include <linux/freezer.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.h>
-#include <linux/workqueue.h>
-#include <linux/of.h>
 #include <linux/usb/isp1301.h>
 
-#include <asm/byteorder.h>
-#include <mach/hardware.h>
-#include <linux/io.h>
-#include <asm/irq.h>
-
-#include <mach/platform.h>
-#include <mach/irqs.h>
-#include <mach/board.h>
 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #endif
 
+#include <mach/hardware.h>
+#include <mach/platform.h>
+
 /*
  * USB device configuration structure
  */
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
new file mode 100644
index 000000000000..93a3bec81df7
--- /dev/null
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -0,0 +1,1975 @@
+/*
+ * Renesas USB3.0 Peripheral driver (USB gadget)
+ *
+ * Copyright (C) 2015  Renesas Electronics Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/sizes.h>
+#include <linux/slab.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+/* register definitions */
+#define USB3_AXI_INT_STA	0x008
+#define USB3_AXI_INT_ENA	0x00c
+#define USB3_DMA_INT_STA	0x010
+#define USB3_DMA_INT_ENA	0x014
+#define USB3_USB_COM_CON	0x200
+#define USB3_USB20_CON		0x204
+#define USB3_USB30_CON		0x208
+#define USB3_USB_STA		0x210
+#define USB3_DRD_CON		0x218
+#define USB3_USB_INT_STA_1	0x220
+#define USB3_USB_INT_STA_2	0x224
+#define USB3_USB_INT_ENA_1	0x228
+#define USB3_USB_INT_ENA_2	0x22c
+#define USB3_STUP_DAT_0		0x230
+#define USB3_STUP_DAT_1		0x234
+#define USB3_P0_MOD		0x280
+#define USB3_P0_CON		0x288
+#define USB3_P0_STA		0x28c
+#define USB3_P0_INT_STA		0x290
+#define USB3_P0_INT_ENA		0x294
+#define USB3_P0_LNG		0x2a0
+#define USB3_P0_READ		0x2a4
+#define USB3_P0_WRITE		0x2a8
+#define USB3_PIPE_COM		0x2b0
+#define USB3_PN_MOD		0x2c0
+#define USB3_PN_RAMMAP		0x2c4
+#define USB3_PN_CON		0x2c8
+#define USB3_PN_STA		0x2cc
+#define USB3_PN_INT_STA		0x2d0
+#define USB3_PN_INT_ENA		0x2d4
+#define USB3_PN_LNG		0x2e0
+#define USB3_PN_READ		0x2e4
+#define USB3_PN_WRITE		0x2e8
+#define USB3_SSIFCMD		0x340
+
+/* AXI_INT_ENA and AXI_INT_STA */
+#define AXI_INT_DMAINT		BIT(31)
+#define AXI_INT_EPCINT		BIT(30)
+
+/* LCLKSEL */
+#define LCLKSEL_LSEL		BIT(18)
+
+/* USB_COM_CON */
+#define USB_COM_CON_CONF		BIT(24)
+#define USB_COM_CON_SPD_MODE		BIT(17)
+#define USB_COM_CON_EP0_EN		BIT(16)
+#define USB_COM_CON_DEV_ADDR_SHIFT	8
+#define USB_COM_CON_DEV_ADDR_MASK	GENMASK(14, USB_COM_CON_DEV_ADDR_SHIFT)
+#define USB_COM_CON_DEV_ADDR(n)		(((n) << USB_COM_CON_DEV_ADDR_SHIFT) & \
+					 USB_COM_CON_DEV_ADDR_MASK)
+#define USB_COM_CON_RX_DETECTION	BIT(1)
+#define USB_COM_CON_PIPE_CLR		BIT(0)
+
+/* USB20_CON */
+#define USB20_CON_B2_PUE		BIT(31)
+#define USB20_CON_B2_SUSPEND		BIT(24)
+#define USB20_CON_B2_CONNECT		BIT(17)
+#define USB20_CON_B2_TSTMOD_SHIFT	8
+#define USB20_CON_B2_TSTMOD_MASK	GENMASK(10, USB20_CON_B2_TSTMOD_SHIFT)
+#define USB20_CON_B2_TSTMOD(n)		(((n) << USB20_CON_B2_TSTMOD_SHIFT) & \
+					 USB20_CON_B2_TSTMOD_MASK)
+#define USB20_CON_B2_TSTMOD_EN		BIT(0)
+
+/* USB30_CON */
+#define USB30_CON_POW_SEL_SHIFT		24
+#define USB30_CON_POW_SEL_MASK		GENMASK(26, USB30_CON_POW_SEL_SHIFT)
+#define USB30_CON_POW_SEL_IN_U3		BIT(26)
+#define USB30_CON_POW_SEL_IN_DISCON	0
+#define USB30_CON_POW_SEL_P2_TO_P0	BIT(25)
+#define USB30_CON_POW_SEL_P0_TO_P3	BIT(24)
+#define USB30_CON_POW_SEL_P0_TO_P2	0
+#define USB30_CON_B3_PLLWAKE		BIT(23)
+#define USB30_CON_B3_CONNECT		BIT(17)
+#define USB30_CON_B3_HOTRST_CMP		BIT(1)
+
+/* USB_STA */
+#define USB_STA_SPEED_MASK	(BIT(2) | BIT(1))
+#define USB_STA_SPEED_HS	BIT(2)
+#define USB_STA_SPEED_FS	BIT(1)
+#define USB_STA_SPEED_SS	0
+#define USB_STA_VBUS_STA	BIT(0)
+
+/* DRD_CON */
+#define DRD_CON_PERI_CON	BIT(24)
+
+/* USB_INT_ENA_1 and USB_INT_STA_1 */
+#define USB_INT_1_B3_PLLWKUP	BIT(31)
+#define USB_INT_1_B3_LUPSUCS	BIT(30)
+#define USB_INT_1_B3_DISABLE	BIT(27)
+#define USB_INT_1_B3_WRMRST	BIT(21)
+#define USB_INT_1_B3_HOTRST	BIT(20)
+#define USB_INT_1_B2_USBRST	BIT(12)
+#define USB_INT_1_B2_L1SPND	BIT(11)
+#define USB_INT_1_B2_SPND	BIT(9)
+#define USB_INT_1_B2_RSUM	BIT(8)
+#define USB_INT_1_SPEED		BIT(1)
+#define USB_INT_1_VBUS_CNG	BIT(0)
+
+/* USB_INT_ENA_2 and USB_INT_STA_2 */
+#define USB_INT_2_PIPE(n)	BIT(n)
+
+/* P0_MOD */
+#define P0_MOD_DIR		BIT(6)
+
+/* P0_CON and PN_CON */
+#define PX_CON_BYTE_EN_MASK		(BIT(10) | BIT(9))
+#define PX_CON_BYTE_EN_SHIFT		9
+#define PX_CON_BYTE_EN_BYTES(n)		(((n) << PX_CON_BYTE_EN_SHIFT) & \
+					 PX_CON_BYTE_EN_MASK)
+#define PX_CON_SEND			BIT(8)
+
+/* P0_CON */
+#define P0_CON_ST_RES_MASK		(BIT(27) | BIT(26))
+#define P0_CON_ST_RES_FORCE_STALL	BIT(27)
+#define P0_CON_ST_RES_NORMAL		BIT(26)
+#define P0_CON_ST_RES_FORCE_NRDY	0
+#define P0_CON_OT_RES_MASK		(BIT(25) | BIT(24))
+#define P0_CON_OT_RES_FORCE_STALL	BIT(25)
+#define P0_CON_OT_RES_NORMAL		BIT(24)
+#define P0_CON_OT_RES_FORCE_NRDY	0
+#define P0_CON_IN_RES_MASK		(BIT(17) | BIT(16))
+#define P0_CON_IN_RES_FORCE_STALL	BIT(17)
+#define P0_CON_IN_RES_NORMAL		BIT(16)
+#define P0_CON_IN_RES_FORCE_NRDY	0
+#define P0_CON_RES_WEN			BIT(7)
+#define P0_CON_BCLR			BIT(1)
+
+/* P0_STA and PN_STA */
+#define PX_STA_BUFSTS		BIT(0)
+
+/* P0_INT_ENA and P0_INT_STA */
+#define P0_INT_STSED		BIT(18)
+#define P0_INT_STSST		BIT(17)
+#define P0_INT_SETUP		BIT(16)
+#define P0_INT_RCVNL		BIT(8)
+#define P0_INT_ERDY		BIT(7)
+#define P0_INT_FLOW		BIT(6)
+#define P0_INT_STALL		BIT(2)
+#define P0_INT_NRDY		BIT(1)
+#define P0_INT_BFRDY		BIT(0)
+#define P0_INT_ALL_BITS		(P0_INT_STSED | P0_INT_SETUP | P0_INT_BFRDY)
+
+/* PN_MOD */
+#define PN_MOD_DIR		BIT(6)
+#define PN_MOD_TYPE_SHIFT	4
+#define PN_MOD_TYPE_MASK	GENMASK(5, PN_MOD_TYPE_SHIFT)
+#define PN_MOD_TYPE(n)		(((n) << PN_MOD_TYPE_SHIFT) & \
+				 PN_MOD_TYPE_MASK)
+#define PN_MOD_EPNUM_MASK	GENMASK(3, 0)
+#define PN_MOD_EPNUM(n)		((n) & PN_MOD_EPNUM_MASK)
+
+/* PN_RAMMAP */
+#define PN_RAMMAP_RAMAREA_SHIFT	29
+#define PN_RAMMAP_RAMAREA_MASK	GENMASK(31, PN_RAMMAP_RAMAREA_SHIFT)
+#define PN_RAMMAP_RAMAREA_16KB	BIT(31)
+#define PN_RAMMAP_RAMAREA_8KB	(BIT(30) | BIT(29))
+#define PN_RAMMAP_RAMAREA_4KB	BIT(30)
+#define PN_RAMMAP_RAMAREA_2KB	BIT(29)
+#define PN_RAMMAP_RAMAREA_1KB	0
+#define PN_RAMMAP_MPKT_SHIFT	16
+#define PN_RAMMAP_MPKT_MASK	GENMASK(26, PN_RAMMAP_MPKT_SHIFT)
+#define PN_RAMMAP_MPKT(n)	(((n) << PN_RAMMAP_MPKT_SHIFT) & \
+				 PN_RAMMAP_MPKT_MASK)
+#define PN_RAMMAP_RAMIF_SHIFT	14
+#define PN_RAMMAP_RAMIF_MASK	GENMASK(15, PN_RAMMAP_RAMIF_SHIFT)
+#define PN_RAMMAP_RAMIF(n)	(((n) << PN_RAMMAP_RAMIF_SHIFT) & \
+				 PN_RAMMAP_RAMIF_MASK)
+#define PN_RAMMAP_BASEAD_MASK	GENMASK(13, 0)
+#define PN_RAMMAP_BASEAD(offs)	(((offs) >> 3) & PN_RAMMAP_BASEAD_MASK)
+#define PN_RAMMAP_DATA(area, ramif, basead)	((PN_RAMMAP_##area) | \
+						 (PN_RAMMAP_RAMIF(ramif)) | \
+						 (PN_RAMMAP_BASEAD(basead)))
+
+/* PN_CON */
+#define PN_CON_EN		BIT(31)
+#define PN_CON_DATAIF_EN	BIT(30)
+#define PN_CON_RES_MASK		(BIT(17) | BIT(16))
+#define PN_CON_RES_FORCE_STALL	BIT(17)
+#define PN_CON_RES_NORMAL	BIT(16)
+#define PN_CON_RES_FORCE_NRDY	0
+#define PN_CON_LAST		BIT(11)
+#define PN_CON_RES_WEN		BIT(7)
+#define PN_CON_CLR		BIT(0)
+
+/* PN_INT_STA and PN_INT_ENA */
+#define PN_INT_LSTTR	BIT(4)
+#define PN_INT_BFRDY	BIT(0)
+
+/* USB3_SSIFCMD */
+#define SSIFCMD_URES_U2		BIT(9)
+#define SSIFCMD_URES_U1		BIT(8)
+#define SSIFCMD_UDIR_U2		BIT(7)
+#define SSIFCMD_UDIR_U1		BIT(6)
+#define SSIFCMD_UREQ_U2		BIT(5)
+#define SSIFCMD_UREQ_U1		BIT(4)
+
+#define USB3_EP0_SS_MAX_PACKET_SIZE	512
+#define USB3_EP0_HSFS_MAX_PACKET_SIZE	64
+#define USB3_EP0_BUF_SIZE		8
+#define USB3_MAX_NUM_PIPES		30
+#define USB3_WAIT_US			3
+
+struct renesas_usb3;
+struct renesas_usb3_request {
+	struct usb_request	req;
+	struct list_head	queue;
+};
+
+#define USB3_EP_NAME_SIZE	8
+struct renesas_usb3_ep {
+	struct usb_ep ep;
+	struct renesas_usb3 *usb3;
+	int num;
+	char ep_name[USB3_EP_NAME_SIZE];
+	struct list_head queue;
+	u32 rammap_val;
+	bool dir_in;
+	bool halt;
+	bool wedge;
+	bool started;
+};
+
+struct renesas_usb3_priv {
+	int ramsize_per_ramif;		/* unit = bytes */
+	int num_ramif;
+	int ramsize_per_pipe;		/* unit = bytes */
+	bool workaround_for_vbus;	/* if true, don't check vbus signal */
+};
+
+struct renesas_usb3 {
+	void __iomem *reg;
+
+	struct usb_gadget gadget;
+	struct usb_gadget_driver *driver;
+
+	struct renesas_usb3_ep *usb3_ep;
+	int num_usb3_eps;
+
+	spinlock_t lock;
+	int disabled_count;
+
+	struct usb_request *ep0_req;
+	u16 test_mode;
+	u8 ep0_buf[USB3_EP0_BUF_SIZE];
+	bool softconnect;
+	bool workaround_for_vbus;
+};
+
+#define gadget_to_renesas_usb3(_gadget)	\
+		container_of(_gadget, struct renesas_usb3, gadget)
+#define renesas_usb3_to_gadget(renesas_usb3) (&renesas_usb3->gadget)
+#define usb3_to_dev(_usb3)	(_usb3->gadget.dev.parent)
+
+#define usb_ep_to_usb3_ep(_ep) container_of(_ep, struct renesas_usb3_ep, ep)
+#define usb3_ep_to_usb3(_usb3_ep) (_usb3_ep->usb3)
+#define usb_req_to_usb3_req(_req) container_of(_req, \
+					    struct renesas_usb3_request, req)
+
+#define usb3_get_ep(usb3, n) ((usb3)->usb3_ep + (n))
+#define usb3_for_each_ep(usb3_ep, usb3, i)			\
+		for ((i) = 0, usb3_ep = usb3_get_ep(usb3, (i));	\
+		     (i) < (usb3)->num_usb3_eps;		\
+		     (i)++, usb3_ep = usb3_get_ep(usb3, (i)))
+
+static const char udc_name[] = "renesas_usb3";
+
+static void usb3_write(struct renesas_usb3 *usb3, u32 data, u32 offs)
+{
+	iowrite32(data, usb3->reg + offs);
+}
+
+static u32 usb3_read(struct renesas_usb3 *usb3, u32 offs)
+{
+	return ioread32(usb3->reg + offs);
+}
+
+static void usb3_set_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs)
+{
+	u32 val = usb3_read(usb3, offs);
+
+	val |= bits;
+	usb3_write(usb3, val, offs);
+}
+
+static void usb3_clear_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs)
+{
+	u32 val = usb3_read(usb3, offs);
+
+	val &= ~bits;
+	usb3_write(usb3, val, offs);
+}
+
+static int usb3_wait(struct renesas_usb3 *usb3, u32 reg, u32 mask,
+		     u32 expected)
+{
+	int i;
+
+	for (i = 0; i < USB3_WAIT_US; i++) {
+		if ((usb3_read(usb3, reg) & mask) == expected)
+			return 0;
+		udelay(1);
+	}
+
+	dev_dbg(usb3_to_dev(usb3), "%s: timed out (%8x, %08x, %08x)\n",
+		__func__, reg, mask, expected);
+
+	return -EBUSY;
+}
+
+static void usb3_enable_irq_1(struct renesas_usb3 *usb3, u32 bits)
+{
+	usb3_set_bit(usb3, bits, USB3_USB_INT_ENA_1);
+}
+
+static void usb3_disable_irq_1(struct renesas_usb3 *usb3, u32 bits)
+{
+	usb3_clear_bit(usb3, bits, USB3_USB_INT_ENA_1);
+}
+
+static void usb3_enable_pipe_irq(struct renesas_usb3 *usb3, int num)
+{
+	usb3_set_bit(usb3, USB_INT_2_PIPE(num), USB3_USB_INT_ENA_2);
+}
+
+static void usb3_disable_pipe_irq(struct renesas_usb3 *usb3, int num)
+{
+	usb3_clear_bit(usb3, USB_INT_2_PIPE(num), USB3_USB_INT_ENA_2);
+}
+
+static void usb3_init_axi_bridge(struct renesas_usb3 *usb3)
+{
+	/* Set AXI_INT */
+	usb3_write(usb3, ~0, USB3_DMA_INT_STA);
+	usb3_write(usb3, 0, USB3_DMA_INT_ENA);
+	usb3_set_bit(usb3, AXI_INT_DMAINT | AXI_INT_EPCINT, USB3_AXI_INT_ENA);
+}
+
+static void usb3_init_epc_registers(struct renesas_usb3 *usb3)
+{
+	/* FIXME: How to change host / peripheral mode as well? */
+	usb3_set_bit(usb3, DRD_CON_PERI_CON, USB3_DRD_CON);
+
+	usb3_write(usb3, ~0, USB3_USB_INT_STA_1);
+	usb3_enable_irq_1(usb3, USB_INT_1_VBUS_CNG);
+}
+
+static bool usb3_wakeup_usb2_phy(struct renesas_usb3 *usb3)
+{
+	if (!(usb3_read(usb3, USB3_USB20_CON) & USB20_CON_B2_SUSPEND))
+		return true;	/* already waked it up */
+
+	usb3_clear_bit(usb3, USB20_CON_B2_SUSPEND, USB3_USB20_CON);
+	usb3_enable_irq_1(usb3, USB_INT_1_B2_RSUM);
+
+	return false;
+}
+
+static void usb3_usb2_pullup(struct renesas_usb3 *usb3, int pullup)
+{
+	u32 bits = USB20_CON_B2_PUE | USB20_CON_B2_CONNECT;
+
+	if (usb3->softconnect && pullup)
+		usb3_set_bit(usb3, bits, USB3_USB20_CON);
+	else
+		usb3_clear_bit(usb3, bits, USB3_USB20_CON);
+}
+
+static void usb3_set_test_mode(struct renesas_usb3 *usb3)
+{
+	u32 val = usb3_read(usb3, USB3_USB20_CON);
+
+	val &= ~USB20_CON_B2_TSTMOD_MASK;
+	val |= USB20_CON_B2_TSTMOD(usb3->test_mode);
+	usb3_write(usb3, val | USB20_CON_B2_TSTMOD_EN, USB3_USB20_CON);
+	if (!usb3->test_mode)
+		usb3_clear_bit(usb3, USB20_CON_B2_TSTMOD_EN, USB3_USB20_CON);
+}
+
+static void usb3_start_usb2_connection(struct renesas_usb3 *usb3)
+{
+	usb3->disabled_count++;
+	usb3_set_bit(usb3, USB_COM_CON_EP0_EN, USB3_USB_COM_CON);
+	usb3_set_bit(usb3, USB_COM_CON_SPD_MODE, USB3_USB_COM_CON);
+	usb3_usb2_pullup(usb3, 1);
+}
+
+static int usb3_is_usb3_phy_in_u3(struct renesas_usb3 *usb3)
+{
+	return usb3_read(usb3, USB3_USB30_CON) & USB30_CON_POW_SEL_IN_U3;
+}
+
+static bool usb3_wakeup_usb3_phy(struct renesas_usb3 *usb3)
+{
+	if (!usb3_is_usb3_phy_in_u3(usb3))
+		return true;	/* already waked it up */
+
+	usb3_set_bit(usb3, USB30_CON_B3_PLLWAKE, USB3_USB30_CON);
+	usb3_enable_irq_1(usb3, USB_INT_1_B3_PLLWKUP);
+
+	return false;
+}
+
+static u16 usb3_feature_get_un_enabled(struct renesas_usb3 *usb3)
+{
+	u32 mask_u2 = SSIFCMD_UDIR_U2 | SSIFCMD_UREQ_U2;
+	u32 mask_u1 = SSIFCMD_UDIR_U1 | SSIFCMD_UREQ_U1;
+	u32 val = usb3_read(usb3, USB3_SSIFCMD);
+	u16 ret = 0;
+
+	/* Enables {U2,U1} if the bits of UDIR and UREQ are set to 0 */
+	if (!(val & mask_u2))
+		ret |= 1 << USB_DEV_STAT_U2_ENABLED;
+	if (!(val & mask_u1))
+		ret |= 1 << USB_DEV_STAT_U1_ENABLED;
+
+	return ret;
+}
+
+static void usb3_feature_u2_enable(struct renesas_usb3 *usb3, bool enable)
+{
+	u32 bits = SSIFCMD_UDIR_U2 | SSIFCMD_UREQ_U2;
+
+	/* Enables U2 if the bits of UDIR and UREQ are set to 0 */
+	if (enable)
+		usb3_clear_bit(usb3, bits, USB3_SSIFCMD);
+	else
+		usb3_set_bit(usb3, bits, USB3_SSIFCMD);
+}
+
+static void usb3_feature_u1_enable(struct renesas_usb3 *usb3, bool enable)
+{
+	u32 bits = SSIFCMD_UDIR_U1 | SSIFCMD_UREQ_U1;
+
+	/* Enables U1 if the bits of UDIR and UREQ are set to 0 */
+	if (enable)
+		usb3_clear_bit(usb3, bits, USB3_SSIFCMD);
+	else
+		usb3_set_bit(usb3, bits, USB3_SSIFCMD);
+}
+
+static void usb3_start_operation_for_usb3(struct renesas_usb3 *usb3)
+{
+	usb3_set_bit(usb3, USB_COM_CON_EP0_EN, USB3_USB_COM_CON);
+	usb3_clear_bit(usb3, USB_COM_CON_SPD_MODE, USB3_USB_COM_CON);
+	usb3_set_bit(usb3, USB30_CON_B3_CONNECT, USB3_USB30_CON);
+}
+
+static void usb3_start_usb3_connection(struct renesas_usb3 *usb3)
+{
+	usb3_start_operation_for_usb3(usb3);
+	usb3_set_bit(usb3, USB_COM_CON_RX_DETECTION, USB3_USB_COM_CON);
+
+	usb3_enable_irq_1(usb3, USB_INT_1_B3_LUPSUCS | USB_INT_1_B3_DISABLE |
+			  USB_INT_1_SPEED);
+}
+
+static void usb3_stop_usb3_connection(struct renesas_usb3 *usb3)
+{
+	usb3_clear_bit(usb3, USB30_CON_B3_CONNECT, USB3_USB30_CON);
+}
+
+static void usb3_transition_to_default_state(struct renesas_usb3 *usb3,
+					     bool is_usb3)
+{
+	usb3_set_bit(usb3, USB_INT_2_PIPE(0), USB3_USB_INT_ENA_2);
+	usb3_write(usb3, P0_INT_ALL_BITS, USB3_P0_INT_STA);
+	usb3_set_bit(usb3, P0_INT_ALL_BITS, USB3_P0_INT_ENA);
+
+	if (is_usb3)
+		usb3_enable_irq_1(usb3, USB_INT_1_B3_WRMRST |
+				  USB_INT_1_B3_HOTRST);
+	else
+		usb3_enable_irq_1(usb3, USB_INT_1_B2_SPND |
+				  USB_INT_1_B2_L1SPND | USB_INT_1_B2_USBRST);
+}
+
+static void usb3_connect(struct renesas_usb3 *usb3)
+{
+	if (usb3_wakeup_usb3_phy(usb3))
+		usb3_start_usb3_connection(usb3);
+}
+
+static void usb3_reset_epc(struct renesas_usb3 *usb3)
+{
+	usb3_clear_bit(usb3, USB_COM_CON_CONF, USB3_USB_COM_CON);
+	usb3_clear_bit(usb3, USB_COM_CON_EP0_EN, USB3_USB_COM_CON);
+	usb3_set_bit(usb3, USB_COM_CON_PIPE_CLR, USB3_USB_COM_CON);
+	usb3->test_mode = 0;
+	usb3_set_test_mode(usb3);
+}
+
+static void usb3_disconnect(struct renesas_usb3 *usb3)
+{
+	usb3->disabled_count = 0;
+	usb3_usb2_pullup(usb3, 0);
+	usb3_clear_bit(usb3, USB30_CON_B3_CONNECT, USB3_USB30_CON);
+	usb3_reset_epc(usb3);
+
+	if (usb3->driver)
+		usb3->driver->disconnect(&usb3->gadget);
+}
+
+static void usb3_check_vbus(struct renesas_usb3 *usb3)
+{
+	if (usb3->workaround_for_vbus) {
+		usb3_connect(usb3);
+	} else {
+		if (usb3_read(usb3, USB3_USB_STA) & USB_STA_VBUS_STA)
+			usb3_connect(usb3);
+		else
+			usb3_disconnect(usb3);
+	}
+}
+
+static void renesas_usb3_init_controller(struct renesas_usb3 *usb3)
+{
+	usb3_init_axi_bridge(usb3);
+	usb3_init_epc_registers(usb3);
+
+	usb3_check_vbus(usb3);
+}
+
+static void renesas_usb3_stop_controller(struct renesas_usb3 *usb3)
+{
+	usb3_disconnect(usb3);
+	usb3_write(usb3, 0, USB3_P0_INT_ENA);
+	usb3_write(usb3, 0, USB3_PN_INT_ENA);
+	usb3_write(usb3, 0, USB3_USB_INT_ENA_1);
+	usb3_write(usb3, 0, USB3_USB_INT_ENA_2);
+	usb3_write(usb3, 0, USB3_AXI_INT_ENA);
+}
+
+static void usb3_irq_epc_int_1_pll_wakeup(struct renesas_usb3 *usb3)
+{
+	usb3_disable_irq_1(usb3, USB_INT_1_B3_PLLWKUP);
+	usb3_clear_bit(usb3, USB30_CON_B3_PLLWAKE, USB3_USB30_CON);
+	usb3_start_usb3_connection(usb3);
+}
+
+static void usb3_irq_epc_int_1_linkup_success(struct renesas_usb3 *usb3)
+{
+	usb3_transition_to_default_state(usb3, true);
+}
+
+static void usb3_irq_epc_int_1_resume(struct renesas_usb3 *usb3)
+{
+	usb3_disable_irq_1(usb3, USB_INT_1_B2_RSUM);
+	usb3_start_usb2_connection(usb3);
+	usb3_transition_to_default_state(usb3, false);
+}
+
+static void usb3_irq_epc_int_1_disable(struct renesas_usb3 *usb3)
+{
+	usb3_stop_usb3_connection(usb3);
+	if (usb3_wakeup_usb2_phy(usb3))
+		usb3_irq_epc_int_1_resume(usb3);
+}
+
+static void usb3_irq_epc_int_1_bus_reset(struct renesas_usb3 *usb3)
+{
+	usb3_reset_epc(usb3);
+	if (usb3->disabled_count < 3)
+		usb3_start_usb3_connection(usb3);
+	else
+		usb3_start_usb2_connection(usb3);
+}
+
+static void usb3_irq_epc_int_1_vbus_change(struct renesas_usb3 *usb3)
+{
+	usb3_check_vbus(usb3);
+}
+
+static void usb3_irq_epc_int_1_hot_reset(struct renesas_usb3 *usb3)
+{
+	usb3_reset_epc(usb3);
+	usb3_set_bit(usb3, USB_COM_CON_EP0_EN, USB3_USB_COM_CON);
+
+	/* This bit shall be set within 12ms from the start of HotReset */
+	usb3_set_bit(usb3, USB30_CON_B3_HOTRST_CMP, USB3_USB30_CON);
+}
+
+static void usb3_irq_epc_int_1_warm_reset(struct renesas_usb3 *usb3)
+{
+	usb3_reset_epc(usb3);
+	usb3_set_bit(usb3, USB_COM_CON_EP0_EN, USB3_USB_COM_CON);
+
+	usb3_start_operation_for_usb3(usb3);
+	usb3_enable_irq_1(usb3, USB_INT_1_SPEED);
+}
+
+static void usb3_irq_epc_int_1_speed(struct renesas_usb3 *usb3)
+{
+	u32 speed = usb3_read(usb3, USB3_USB_STA) & USB_STA_SPEED_MASK;
+
+	switch (speed) {
+	case USB_STA_SPEED_SS:
+		usb3->gadget.speed = USB_SPEED_SUPER;
+		break;
+	case USB_STA_SPEED_HS:
+		usb3->gadget.speed = USB_SPEED_HIGH;
+		break;
+	case USB_STA_SPEED_FS:
+		usb3->gadget.speed = USB_SPEED_FULL;
+		break;
+	default:
+		usb3->gadget.speed = USB_SPEED_UNKNOWN;
+		break;
+	}
+}
+
+static void usb3_irq_epc_int_1(struct renesas_usb3 *usb3, u32 int_sta_1)
+{
+	if (int_sta_1 & USB_INT_1_B3_PLLWKUP)
+		usb3_irq_epc_int_1_pll_wakeup(usb3);
+
+	if (int_sta_1 & USB_INT_1_B3_LUPSUCS)
+		usb3_irq_epc_int_1_linkup_success(usb3);
+
+	if (int_sta_1 & USB_INT_1_B3_HOTRST)
+		usb3_irq_epc_int_1_hot_reset(usb3);
+
+	if (int_sta_1 & USB_INT_1_B3_WRMRST)
+		usb3_irq_epc_int_1_warm_reset(usb3);
+
+	if (int_sta_1 & USB_INT_1_B3_DISABLE)
+		usb3_irq_epc_int_1_disable(usb3);
+
+	if (int_sta_1 & USB_INT_1_B2_USBRST)
+		usb3_irq_epc_int_1_bus_reset(usb3);
+
+	if (int_sta_1 & USB_INT_1_B2_RSUM)
+		usb3_irq_epc_int_1_resume(usb3);
+
+	if (int_sta_1 & USB_INT_1_SPEED)
+		usb3_irq_epc_int_1_speed(usb3);
+
+	if (int_sta_1 & USB_INT_1_VBUS_CNG)
+		usb3_irq_epc_int_1_vbus_change(usb3);
+}
+
+static struct renesas_usb3_request *__usb3_get_request(struct renesas_usb3_ep
+						       *usb3_ep)
+{
+	return list_first_entry_or_null(&usb3_ep->queue,
+					struct renesas_usb3_request, queue);
+}
+
+static struct renesas_usb3_request *usb3_get_request(struct renesas_usb3_ep
+						     *usb3_ep)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	struct renesas_usb3_request *usb3_req;
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	usb3_req = __usb3_get_request(usb3_ep);
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	return usb3_req;
+}
+
+static void usb3_request_done(struct renesas_usb3_ep *usb3_ep,
+			      struct renesas_usb3_request *usb3_req, int status)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	dev_dbg(usb3_to_dev(usb3), "giveback: ep%2d, %u, %u, %d\n",
+		usb3_ep->num, usb3_req->req.length, usb3_req->req.actual,
+		status);
+	usb3_req->req.status = status;
+	spin_lock_irqsave(&usb3->lock, flags);
+	usb3_ep->started = false;
+	list_del_init(&usb3_req->queue);
+	spin_unlock_irqrestore(&usb3->lock, flags);
+	usb_gadget_giveback_request(&usb3_ep->ep, &usb3_req->req);
+}
+
+static void usb3_irq_epc_pipe0_status_end(struct renesas_usb3 *usb3)
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, 0);
+	struct renesas_usb3_request *usb3_req = usb3_get_request(usb3_ep);
+
+	if (usb3_req)
+		usb3_request_done(usb3_ep, usb3_req, 0);
+	if (usb3->test_mode)
+		usb3_set_test_mode(usb3);
+}
+
+static void usb3_get_setup_data(struct renesas_usb3 *usb3,
+				struct usb_ctrlrequest *ctrl)
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, 0);
+	u32 *data = (u32 *)ctrl;
+
+	*data++ = usb3_read(usb3, USB3_STUP_DAT_0);
+	*data = usb3_read(usb3, USB3_STUP_DAT_1);
+
+	/* update this driver's flag */
+	usb3_ep->dir_in = !!(ctrl->bRequestType & USB_DIR_IN);
+}
+
+static void usb3_set_p0_con_update_res(struct renesas_usb3 *usb3, u32 res)
+{
+	u32 val = usb3_read(usb3, USB3_P0_CON);
+
+	val &= ~(P0_CON_ST_RES_MASK | P0_CON_OT_RES_MASK | P0_CON_IN_RES_MASK);
+	val |= res | P0_CON_RES_WEN;
+	usb3_write(usb3, val, USB3_P0_CON);
+}
+
+static void usb3_set_p0_con_for_ctrl_read_data(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_FORCE_NRDY |
+				   P0_CON_OT_RES_FORCE_STALL |
+				   P0_CON_IN_RES_NORMAL);
+}
+
+static void usb3_set_p0_con_for_ctrl_read_status(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_NORMAL |
+				   P0_CON_OT_RES_FORCE_STALL |
+				   P0_CON_IN_RES_NORMAL);
+}
+
+static void usb3_set_p0_con_for_ctrl_write_data(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_FORCE_NRDY |
+				   P0_CON_OT_RES_NORMAL |
+				   P0_CON_IN_RES_FORCE_STALL);
+}
+
+static void usb3_set_p0_con_for_ctrl_write_status(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_NORMAL |
+				   P0_CON_OT_RES_NORMAL |
+				   P0_CON_IN_RES_FORCE_STALL);
+}
+
+static void usb3_set_p0_con_for_no_data(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_NORMAL |
+				   P0_CON_OT_RES_FORCE_STALL |
+				   P0_CON_IN_RES_FORCE_STALL);
+}
+
+static void usb3_set_p0_con_stall(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_FORCE_STALL |
+				   P0_CON_OT_RES_FORCE_STALL |
+				   P0_CON_IN_RES_FORCE_STALL);
+}
+
+static void usb3_set_p0_con_stop(struct renesas_usb3 *usb3)
+{
+	usb3_set_p0_con_update_res(usb3, P0_CON_ST_RES_FORCE_NRDY |
+				   P0_CON_OT_RES_FORCE_NRDY |
+				   P0_CON_IN_RES_FORCE_NRDY);
+}
+
+static int usb3_pn_change(struct renesas_usb3 *usb3, int num)
+{
+	if (num == 0 || num > usb3->num_usb3_eps)
+		return -ENXIO;
+
+	usb3_write(usb3, num, USB3_PIPE_COM);
+
+	return 0;
+}
+
+static void usb3_set_pn_con_update_res(struct renesas_usb3 *usb3, u32 res)
+{
+	u32 val = usb3_read(usb3, USB3_PN_CON);
+
+	val &= ~PN_CON_RES_MASK;
+	val |= res & PN_CON_RES_MASK;
+	val |= PN_CON_RES_WEN;
+	usb3_write(usb3, val, USB3_PN_CON);
+}
+
+static void usb3_pn_start(struct renesas_usb3 *usb3)
+{
+	usb3_set_pn_con_update_res(usb3, PN_CON_RES_NORMAL);
+}
+
+static void usb3_pn_stop(struct renesas_usb3 *usb3)
+{
+	usb3_set_pn_con_update_res(usb3, PN_CON_RES_FORCE_NRDY);
+}
+
+static void usb3_pn_stall(struct renesas_usb3 *usb3)
+{
+	usb3_set_pn_con_update_res(usb3, PN_CON_RES_FORCE_STALL);
+}
+
+static int usb3_pn_con_clear(struct renesas_usb3 *usb3)
+{
+	usb3_set_bit(usb3, PN_CON_CLR, USB3_PN_CON);
+
+	return usb3_wait(usb3, USB3_PN_CON, PN_CON_CLR, 0);
+}
+
+static bool usb3_is_transfer_complete(struct renesas_usb3_ep *usb3_ep,
+				      struct renesas_usb3_request *usb3_req)
+{
+	struct usb_request *req = &usb3_req->req;
+
+	if ((!req->zero && req->actual == req->length) ||
+	    (req->actual % usb3_ep->ep.maxpacket) || (req->length == 0))
+		return true;
+	else
+		return false;
+}
+
+static int usb3_wait_pipe_status(struct renesas_usb3_ep *usb3_ep, u32 mask)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	u32 sta_reg = usb3_ep->num ? USB3_PN_STA : USB3_P0_STA;
+
+	return usb3_wait(usb3, sta_reg, mask, mask);
+}
+
+static void usb3_set_px_con_send(struct renesas_usb3_ep *usb3_ep, int bytes,
+				 bool last)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	u32 con_reg = usb3_ep->num ? USB3_PN_CON : USB3_P0_CON;
+	u32 val = usb3_read(usb3, con_reg);
+
+	val |= PX_CON_SEND | PX_CON_BYTE_EN_BYTES(bytes);
+	val |= (usb3_ep->num && last) ? PN_CON_LAST : 0;
+	usb3_write(usb3, val, con_reg);
+}
+
+static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep,
+			   struct renesas_usb3_request *usb3_req,
+			   u32 fifo_reg)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	int i;
+	int len = min_t(unsigned, usb3_req->req.length - usb3_req->req.actual,
+			usb3_ep->ep.maxpacket);
+	u8 *buf = usb3_req->req.buf + usb3_req->req.actual;
+	u32 tmp = 0;
+	bool is_last;
+
+	if (usb3_wait_pipe_status(usb3_ep, PX_STA_BUFSTS) < 0)
+		return -EBUSY;
+
+	/* Update gadget driver parameter */
+	usb3_req->req.actual += len;
+
+	/* Write data to the register */
+	if (len >= 4) {
+		iowrite32_rep(usb3->reg + fifo_reg, buf, len / 4);
+		buf += (len / 4) * 4;
+		len %= 4;	/* update len to use usb3_set_pX_con_send() */
+	}
+
+	if (len) {
+		for (i = 0; i < len; i++)
+			tmp |= buf[i] << (8 * i);
+		usb3_write(usb3, tmp, fifo_reg);
+	}
+
+	is_last = usb3_is_transfer_complete(usb3_ep, usb3_req);
+	/* Send the data */
+	usb3_set_px_con_send(usb3_ep, len, is_last);
+
+	return is_last ? 0 : -EAGAIN;
+}
+
+static u32 usb3_get_received_length(struct renesas_usb3_ep *usb3_ep)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	u32 lng_reg = usb3_ep->num ? USB3_PN_LNG : USB3_P0_LNG;
+
+	return usb3_read(usb3, lng_reg);
+}
+
+static int usb3_read_pipe(struct renesas_usb3_ep *usb3_ep,
+			  struct renesas_usb3_request *usb3_req, u32 fifo_reg)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	int i;
+	int len = min_t(unsigned, usb3_req->req.length - usb3_req->req.actual,
+			usb3_get_received_length(usb3_ep));
+	u8 *buf = usb3_req->req.buf + usb3_req->req.actual;
+	u32 tmp = 0;
+
+	if (!len)
+		return 0;
+
+	/* Update gadget driver parameter */
+	usb3_req->req.actual += len;
+
+	/* Read data from the register */
+	if (len >= 4) {
+		ioread32_rep(usb3->reg + fifo_reg, buf, len / 4);
+		buf += (len / 4) * 4;
+		len %= 4;
+	}
+
+	if (len) {
+		tmp = usb3_read(usb3, fifo_reg);
+		for (i = 0; i < len; i++)
+			buf[i] = (tmp >> (8 * i)) & 0xff;
+	}
+
+	return usb3_is_transfer_complete(usb3_ep, usb3_req) ? 0 : -EAGAIN;
+}
+
+static void usb3_set_status_stage(struct renesas_usb3_ep *usb3_ep,
+				  struct renesas_usb3_request *usb3_req)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+
+	if (usb3_ep->dir_in) {
+		usb3_set_p0_con_for_ctrl_read_status(usb3);
+	} else {
+		if (!usb3_req->req.length)
+			usb3_set_p0_con_for_no_data(usb3);
+		else
+			usb3_set_p0_con_for_ctrl_write_status(usb3);
+	}
+}
+
+static void usb3_p0_xfer(struct renesas_usb3_ep *usb3_ep,
+			 struct renesas_usb3_request *usb3_req)
+{
+	int ret = -EAGAIN;
+
+	if (usb3_ep->dir_in)
+		ret = usb3_write_pipe(usb3_ep, usb3_req, USB3_P0_WRITE);
+	else
+		ret = usb3_read_pipe(usb3_ep, usb3_req, USB3_P0_READ);
+
+	if (!ret)
+		usb3_set_status_stage(usb3_ep, usb3_req);
+}
+
+static void usb3_start_pipe0(struct renesas_usb3_ep *usb3_ep,
+			     struct renesas_usb3_request *usb3_req)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+
+	if (usb3_ep->started)
+		return;
+
+	usb3_ep->started = true;
+
+	if (usb3_ep->dir_in) {
+		usb3_set_bit(usb3, P0_MOD_DIR, USB3_P0_MOD);
+		usb3_set_p0_con_for_ctrl_read_data(usb3);
+	} else {
+		usb3_clear_bit(usb3, P0_MOD_DIR, USB3_P0_MOD);
+		usb3_set_p0_con_for_ctrl_write_data(usb3);
+	}
+
+	usb3_p0_xfer(usb3_ep, usb3_req);
+}
+
+static void usb3_start_pipen(struct renesas_usb3_ep *usb3_ep,
+			     struct renesas_usb3_request *usb3_req)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	struct renesas_usb3_request *usb3_req_first = usb3_get_request(usb3_ep);
+	unsigned long flags;
+	int ret = -EAGAIN;
+	u32 enable_bits = 0;
+
+	if (usb3_ep->halt || usb3_ep->started)
+		return;
+	if (usb3_req != usb3_req_first)
+		return;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	if (usb3_pn_change(usb3, usb3_ep->num) < 0)
+		goto out;
+
+	usb3_ep->started = true;
+	usb3_pn_start(usb3);
+
+	if (usb3_ep->dir_in) {
+		ret = usb3_write_pipe(usb3_ep, usb3_req, USB3_PN_WRITE);
+		enable_bits |= PN_INT_LSTTR;
+	}
+
+	if (ret < 0)
+		enable_bits |= PN_INT_BFRDY;
+
+	if (enable_bits) {
+		usb3_set_bit(usb3, enable_bits, USB3_PN_INT_ENA);
+		usb3_enable_pipe_irq(usb3, usb3_ep->num);
+	}
+out:
+	spin_unlock_irqrestore(&usb3->lock, flags);
+}
+
+static int renesas_usb3_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
+				 gfp_t gfp_flags)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+	struct renesas_usb3_request *usb3_req = usb_req_to_usb3_req(_req);
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	dev_dbg(usb3_to_dev(usb3), "ep_queue: ep%2d, %u\n", usb3_ep->num,
+		_req->length);
+
+	_req->status = -EINPROGRESS;
+	_req->actual = 0;
+	spin_lock_irqsave(&usb3->lock, flags);
+	list_add_tail(&usb3_req->queue, &usb3_ep->queue);
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	if (!usb3_ep->num)
+		usb3_start_pipe0(usb3_ep, usb3_req);
+	else
+		usb3_start_pipen(usb3_ep, usb3_req);
+
+	return 0;
+}
+
+static void usb3_set_device_address(struct renesas_usb3 *usb3, u16 addr)
+{
+	/* DEV_ADDR bit field is cleared by WarmReset, HotReset and BusReset */
+	usb3_set_bit(usb3, USB_COM_CON_DEV_ADDR(addr), USB3_USB_COM_CON);
+}
+
+static bool usb3_std_req_set_address(struct renesas_usb3 *usb3,
+				     struct usb_ctrlrequest *ctrl)
+{
+	if (ctrl->wValue >= 128)
+		return true;	/* stall */
+
+	usb3_set_device_address(usb3, ctrl->wValue);
+	usb3_set_p0_con_for_no_data(usb3);
+
+	return false;
+}
+
+static void usb3_pipe0_internal_xfer(struct renesas_usb3 *usb3,
+				     void *tx_data, size_t len,
+				     void (*complete)(struct usb_ep *ep,
+						      struct usb_request *req))
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, 0);
+
+	if (tx_data)
+		memcpy(usb3->ep0_buf, tx_data,
+		       min_t(size_t, len, USB3_EP0_BUF_SIZE));
+
+	usb3->ep0_req->buf = &usb3->ep0_buf;
+	usb3->ep0_req->length = len;
+	usb3->ep0_req->complete = complete;
+	renesas_usb3_ep_queue(&usb3_ep->ep, usb3->ep0_req, GFP_ATOMIC);
+}
+
+static void usb3_pipe0_get_status_completion(struct usb_ep *ep,
+					     struct usb_request *req)
+{
+}
+
+static bool usb3_std_req_get_status(struct renesas_usb3 *usb3,
+				    struct usb_ctrlrequest *ctrl)
+{
+	bool stall = false;
+	struct renesas_usb3_ep *usb3_ep;
+	int num;
+	u16 status = 0;
+
+	switch (ctrl->bRequestType & USB_RECIP_MASK) {
+	case USB_RECIP_DEVICE:
+		if (usb3->gadget.is_selfpowered)
+			status |= 1 << USB_DEVICE_SELF_POWERED;
+		if (usb3->gadget.speed == USB_SPEED_SUPER)
+			status |= usb3_feature_get_un_enabled(usb3);
+		break;
+	case USB_RECIP_INTERFACE:
+		break;
+	case USB_RECIP_ENDPOINT:
+		num = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
+		usb3_ep = usb3_get_ep(usb3, num);
+		if (usb3_ep->halt)
+			status |= 1 << USB_ENDPOINT_HALT;
+		break;
+	default:
+		stall = true;
+		break;
+	}
+
+	if (!stall) {
+		status = cpu_to_le16(status);
+		dev_dbg(usb3_to_dev(usb3), "get_status: req = %p\n",
+			usb_req_to_usb3_req(usb3->ep0_req));
+		usb3_pipe0_internal_xfer(usb3, &status, sizeof(status),
+					 usb3_pipe0_get_status_completion);
+	}
+
+	return stall;
+}
+
+static bool usb3_std_req_feature_device(struct renesas_usb3 *usb3,
+					struct usb_ctrlrequest *ctrl, bool set)
+{
+	bool stall = true;
+	u16 w_value = le16_to_cpu(ctrl->wValue);
+
+	switch (w_value) {
+	case USB_DEVICE_TEST_MODE:
+		if (!set)
+			break;
+		usb3->test_mode = le16_to_cpu(ctrl->wIndex) >> 8;
+		stall = false;
+		break;
+	case USB_DEVICE_U1_ENABLE:
+	case USB_DEVICE_U2_ENABLE:
+		if (usb3->gadget.speed != USB_SPEED_SUPER)
+			break;
+		if (w_value == USB_DEVICE_U1_ENABLE)
+			usb3_feature_u1_enable(usb3, set);
+		if (w_value == USB_DEVICE_U2_ENABLE)
+			usb3_feature_u2_enable(usb3, set);
+		stall = false;
+		break;
+	default:
+		break;
+	}
+
+	return stall;
+}
+
+static int usb3_set_halt_p0(struct renesas_usb3_ep *usb3_ep, bool halt)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+
+	if (unlikely(usb3_ep->num))
+		return -EINVAL;
+
+	usb3_ep->halt = halt;
+	if (halt)
+		usb3_set_p0_con_stall(usb3);
+	else
+		usb3_set_p0_con_stop(usb3);
+
+	return 0;
+}
+
+static int usb3_set_halt_pn(struct renesas_usb3_ep *usb3_ep, bool halt,
+			    bool is_clear_feature)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	if (!usb3_pn_change(usb3, usb3_ep->num)) {
+		usb3_ep->halt = halt;
+		if (halt) {
+			usb3_pn_stall(usb3);
+		} else if (!is_clear_feature || !usb3_ep->wedge) {
+			usb3_pn_con_clear(usb3);
+			usb3_set_bit(usb3, PN_CON_EN, USB3_PN_CON);
+			usb3_pn_stop(usb3);
+		}
+	}
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	return 0;
+}
+
+static int usb3_set_halt(struct renesas_usb3_ep *usb3_ep, bool halt,
+			 bool is_clear_feature)
+{
+	int ret = 0;
+
+	if (halt && usb3_ep->started)
+		return -EAGAIN;
+
+	if (usb3_ep->num)
+		ret = usb3_set_halt_pn(usb3_ep, halt, is_clear_feature);
+	else
+		ret = usb3_set_halt_p0(usb3_ep, halt);
+
+	return ret;
+}
+
+static bool usb3_std_req_feature_endpoint(struct renesas_usb3 *usb3,
+					  struct usb_ctrlrequest *ctrl,
+					  bool set)
+{
+	int num = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
+	struct renesas_usb3_ep *usb3_ep;
+	struct renesas_usb3_request *usb3_req;
+
+	if (le16_to_cpu(ctrl->wValue) != USB_ENDPOINT_HALT)
+		return true;	/* stall */
+
+	usb3_ep = usb3_get_ep(usb3, num);
+	usb3_set_halt(usb3_ep, set, true);
+
+	/* Restarts a queue if clear feature */
+	if (!set) {
+		usb3_ep->started = false;
+		usb3_req = usb3_get_request(usb3_ep);
+		if (usb3_req)
+			usb3_start_pipen(usb3_ep, usb3_req);
+	}
+
+	return false;
+}
+
+static bool usb3_std_req_feature(struct renesas_usb3 *usb3,
+				 struct usb_ctrlrequest *ctrl, bool set)
+{
+	bool stall = false;
+
+	switch (ctrl->bRequestType & USB_RECIP_MASK) {
+	case USB_RECIP_DEVICE:
+		stall = usb3_std_req_feature_device(usb3, ctrl, set);
+		break;
+	case USB_RECIP_INTERFACE:
+		break;
+	case USB_RECIP_ENDPOINT:
+		stall = usb3_std_req_feature_endpoint(usb3, ctrl, set);
+		break;
+	default:
+		stall = true;
+		break;
+	}
+
+	if (!stall)
+		usb3_set_p0_con_for_no_data(usb3);
+
+	return stall;
+}
+
+static void usb3_pipe0_set_sel_completion(struct usb_ep *ep,
+					  struct usb_request *req)
+{
+	/* TODO */
+}
+
+static bool usb3_std_req_set_sel(struct renesas_usb3 *usb3,
+				 struct usb_ctrlrequest *ctrl)
+{
+	u16 w_length = le16_to_cpu(ctrl->wLength);
+
+	if (w_length != 6)
+		return true;	/* stall */
+
+	dev_dbg(usb3_to_dev(usb3), "set_sel: req = %p\n",
+		usb_req_to_usb3_req(usb3->ep0_req));
+	usb3_pipe0_internal_xfer(usb3, NULL, 6, usb3_pipe0_set_sel_completion);
+
+	return false;
+}
+
+static bool usb3_std_req_set_configuration(struct renesas_usb3 *usb3,
+					   struct usb_ctrlrequest *ctrl)
+{
+	if (ctrl->wValue > 0)
+		usb3_set_bit(usb3, USB_COM_CON_CONF, USB3_USB_COM_CON);
+	else
+		usb3_clear_bit(usb3, USB_COM_CON_CONF, USB3_USB_COM_CON);
+
+	return false;
+}
+
+/**
+ * usb3_handle_standard_request - handle some standard requests
+ * @usb3: the renesas_usb3 pointer
+ * @ctrl: a pointer of setup data
+ *
+ * Returns true if this function handled a standard request
+ */
+static bool usb3_handle_standard_request(struct renesas_usb3 *usb3,
+					 struct usb_ctrlrequest *ctrl)
+{
+	bool ret = false;
+	bool stall = false;
+
+	if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
+		switch (ctrl->bRequest) {
+		case USB_REQ_SET_ADDRESS:
+			stall = usb3_std_req_set_address(usb3, ctrl);
+			ret = true;
+			break;
+		case USB_REQ_GET_STATUS:
+			stall = usb3_std_req_get_status(usb3, ctrl);
+			ret = true;
+			break;
+		case USB_REQ_CLEAR_FEATURE:
+			stall = usb3_std_req_feature(usb3, ctrl, false);
+			ret = true;
+			break;
+		case USB_REQ_SET_FEATURE:
+			stall = usb3_std_req_feature(usb3, ctrl, true);
+			ret = true;
+			break;
+		case USB_REQ_SET_SEL:
+			stall = usb3_std_req_set_sel(usb3, ctrl);
+			ret = true;
+			break;
+		case USB_REQ_SET_ISOCH_DELAY:
+			/* This hardware doesn't support Isochronous xfer */
+			stall = true;
+			ret = true;
+			break;
+		case USB_REQ_SET_CONFIGURATION:
+			usb3_std_req_set_configuration(usb3, ctrl);
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (stall)
+		usb3_set_p0_con_stall(usb3);
+
+	return ret;
+}
+
+static int usb3_p0_con_clear_buffer(struct renesas_usb3 *usb3)
+{
+	usb3_set_bit(usb3, P0_CON_BCLR, USB3_P0_CON);
+
+	return usb3_wait(usb3, USB3_P0_CON, P0_CON_BCLR, 0);
+}
+
+static void usb3_irq_epc_pipe0_setup(struct renesas_usb3 *usb3)
+{
+	struct usb_ctrlrequest ctrl;
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, 0);
+
+	/* Call giveback function if previous transfer is not completed */
+	if (usb3_ep->started)
+		usb3_request_done(usb3_ep, usb3_get_request(usb3_ep),
+				  -ECONNRESET);
+
+	usb3_p0_con_clear_buffer(usb3);
+	usb3_get_setup_data(usb3, &ctrl);
+	if (!usb3_handle_standard_request(usb3, &ctrl))
+		if (usb3->driver->setup(&usb3->gadget, &ctrl) < 0)
+			usb3_set_p0_con_stall(usb3);
+}
+
+static void usb3_irq_epc_pipe0_bfrdy(struct renesas_usb3 *usb3)
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, 0);
+	struct renesas_usb3_request *usb3_req = usb3_get_request(usb3_ep);
+
+	if (!usb3_req)
+		return;
+
+	usb3_p0_xfer(usb3_ep, usb3_req);
+}
+
+static void usb3_irq_epc_pipe0(struct renesas_usb3 *usb3)
+{
+	u32 p0_int_sta = usb3_read(usb3, USB3_P0_INT_STA);
+
+	p0_int_sta &= usb3_read(usb3, USB3_P0_INT_ENA);
+	usb3_write(usb3, p0_int_sta, USB3_P0_INT_STA);
+	if (p0_int_sta & P0_INT_STSED)
+		usb3_irq_epc_pipe0_status_end(usb3);
+	if (p0_int_sta & P0_INT_SETUP)
+		usb3_irq_epc_pipe0_setup(usb3);
+	if (p0_int_sta & P0_INT_BFRDY)
+		usb3_irq_epc_pipe0_bfrdy(usb3);
+}
+
+static void usb3_request_done_pipen(struct renesas_usb3 *usb3,
+				    struct renesas_usb3_ep *usb3_ep,
+				    struct renesas_usb3_request *usb3_req,
+				    int status)
+{
+	usb3_pn_stop(usb3);
+	usb3_disable_pipe_irq(usb3, usb3_ep->num);
+	usb3_request_done(usb3_ep, usb3_req, status);
+
+	/* get next usb3_req */
+	usb3_req = usb3_get_request(usb3_ep);
+	if (usb3_req)
+		usb3_start_pipen(usb3_ep, usb3_req);
+}
+
+static void usb3_irq_epc_pipen_lsttr(struct renesas_usb3 *usb3, int num)
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, num);
+	struct renesas_usb3_request *usb3_req = usb3_get_request(usb3_ep);
+
+	if (!usb3_req)
+		return;
+
+	if (usb3_ep->dir_in) {
+		dev_dbg(usb3_to_dev(usb3), "%s: len = %u, actual = %u\n",
+			__func__, usb3_req->req.length, usb3_req->req.actual);
+		usb3_request_done_pipen(usb3, usb3_ep, usb3_req, 0);
+	}
+}
+
+static void usb3_irq_epc_pipen_bfrdy(struct renesas_usb3 *usb3, int num)
+{
+	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, num);
+	struct renesas_usb3_request *usb3_req = usb3_get_request(usb3_ep);
+
+	if (!usb3_req)
+		return;
+
+	if (usb3_ep->dir_in) {
+		/* Do not stop the IN pipe here to detect LSTTR interrupt */
+		if (!usb3_write_pipe(usb3_ep, usb3_req, USB3_PN_WRITE))
+			usb3_clear_bit(usb3, PN_INT_BFRDY, USB3_PN_INT_ENA);
+	} else {
+		if (!usb3_read_pipe(usb3_ep, usb3_req, USB3_PN_READ))
+			usb3_request_done_pipen(usb3, usb3_ep, usb3_req, 0);
+	}
+}
+
+static void usb3_irq_epc_pipen(struct renesas_usb3 *usb3, int num)
+{
+	u32 pn_int_sta;
+
+	if (usb3_pn_change(usb3, num) < 0)
+		return;
+
+	pn_int_sta = usb3_read(usb3, USB3_PN_INT_STA);
+	pn_int_sta &= usb3_read(usb3, USB3_PN_INT_ENA);
+	usb3_write(usb3, pn_int_sta, USB3_PN_INT_STA);
+	if (pn_int_sta & PN_INT_LSTTR)
+		usb3_irq_epc_pipen_lsttr(usb3, num);
+	if (pn_int_sta & PN_INT_BFRDY)
+		usb3_irq_epc_pipen_bfrdy(usb3, num);
+}
+
+static void usb3_irq_epc_int_2(struct renesas_usb3 *usb3, u32 int_sta_2)
+{
+	int i;
+
+	for (i = 0; i < usb3->num_usb3_eps; i++) {
+		if (int_sta_2 & USB_INT_2_PIPE(i)) {
+			if (!i)
+				usb3_irq_epc_pipe0(usb3);
+			else
+				usb3_irq_epc_pipen(usb3, i);
+		}
+	}
+}
+
+static void usb3_irq_epc(struct renesas_usb3 *usb3)
+{
+	u32 int_sta_1 = usb3_read(usb3, USB3_USB_INT_STA_1);
+	u32 int_sta_2 = usb3_read(usb3, USB3_USB_INT_STA_2);
+
+	int_sta_1 &= usb3_read(usb3, USB3_USB_INT_ENA_1);
+	if (int_sta_1) {
+		usb3_write(usb3, int_sta_1, USB3_USB_INT_STA_1);
+		usb3_irq_epc_int_1(usb3, int_sta_1);
+	}
+
+	int_sta_2 &= usb3_read(usb3, USB3_USB_INT_ENA_2);
+	if (int_sta_2)
+		usb3_irq_epc_int_2(usb3, int_sta_2);
+}
+
+static irqreturn_t renesas_usb3_irq(int irq, void *_usb3)
+{
+	struct renesas_usb3 *usb3 = _usb3;
+	irqreturn_t ret = IRQ_NONE;
+	u32 axi_int_sta = usb3_read(usb3, USB3_AXI_INT_STA);
+
+	if (axi_int_sta & AXI_INT_EPCINT) {
+		usb3_irq_epc(usb3);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+static void usb3_write_pn_mod(struct renesas_usb3_ep *usb3_ep,
+			      const struct usb_endpoint_descriptor *desc)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	u32 val = 0;
+
+	val |= usb3_ep->dir_in ? PN_MOD_DIR : 0;
+	val |= PN_MOD_TYPE(usb_endpoint_type(desc));
+	val |= PN_MOD_EPNUM(usb_endpoint_num(desc));
+	usb3_write(usb3, val, USB3_PN_MOD);
+}
+
+static u32 usb3_calc_ramarea(int ram_size)
+{
+	WARN_ON(ram_size > SZ_16K);
+
+	if (ram_size <= SZ_1K)
+		return PN_RAMMAP_RAMAREA_1KB;
+	else if (ram_size <= SZ_2K)
+		return PN_RAMMAP_RAMAREA_2KB;
+	else if (ram_size <= SZ_4K)
+		return PN_RAMMAP_RAMAREA_4KB;
+	else if (ram_size <= SZ_8K)
+		return PN_RAMMAP_RAMAREA_8KB;
+	else
+		return PN_RAMMAP_RAMAREA_16KB;
+}
+
+static u32 usb3_calc_rammap_val(struct renesas_usb3_ep *usb3_ep,
+				const struct usb_endpoint_descriptor *desc)
+{
+	return usb3_ep->rammap_val | PN_RAMMAP_MPKT(usb_endpoint_maxp(desc));
+}
+
+static int usb3_enable_pipe_n(struct renesas_usb3_ep *usb3_ep,
+			      const struct usb_endpoint_descriptor *desc)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	usb3_ep->dir_in = usb_endpoint_dir_in(desc);
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	if (!usb3_pn_change(usb3, usb3_ep->num)) {
+		usb3_write_pn_mod(usb3_ep, desc);
+		usb3_write(usb3, usb3_calc_rammap_val(usb3_ep, desc),
+			   USB3_PN_RAMMAP);
+		usb3_pn_con_clear(usb3);
+		usb3_set_bit(usb3, PN_CON_EN, USB3_PN_CON);
+	}
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	return 0;
+}
+
+static int usb3_disable_pipe_n(struct renesas_usb3_ep *usb3_ep)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	usb3_ep->halt = false;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	if (!usb3_pn_change(usb3, usb3_ep->num)) {
+		usb3_write(usb3, 0, USB3_PN_RAMMAP);
+		usb3_clear_bit(usb3, PN_CON_EN, USB3_PN_CON);
+	}
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	return 0;
+}
+
+/*------- usb_ep_ops -----------------------------------------------------*/
+static int renesas_usb3_ep_enable(struct usb_ep *_ep,
+				  const struct usb_endpoint_descriptor *desc)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+
+	return usb3_enable_pipe_n(usb3_ep, desc);
+}
+
+static int renesas_usb3_ep_disable(struct usb_ep *_ep)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+	struct renesas_usb3_request *usb3_req;
+
+	do {
+		usb3_req = usb3_get_request(usb3_ep);
+		if (!usb3_req)
+			break;
+		usb3_request_done(usb3_ep, usb3_req, -ESHUTDOWN);
+	} while (1);
+
+	return usb3_disable_pipe_n(usb3_ep);
+}
+
+static struct usb_request *__renesas_usb3_ep_alloc_request(gfp_t gfp_flags)
+{
+	struct renesas_usb3_request *usb3_req;
+
+	usb3_req = kzalloc(sizeof(struct renesas_usb3_request), gfp_flags);
+	if (!usb3_req)
+		return NULL;
+
+	INIT_LIST_HEAD(&usb3_req->queue);
+
+	return &usb3_req->req;
+}
+
+static void __renesas_usb3_ep_free_request(struct usb_request *_req)
+{
+	struct renesas_usb3_request *usb3_req = usb_req_to_usb3_req(_req);
+
+	kfree(usb3_req);
+}
+
+static struct usb_request *renesas_usb3_ep_alloc_request(struct usb_ep *_ep,
+							 gfp_t gfp_flags)
+{
+	return __renesas_usb3_ep_alloc_request(gfp_flags);
+}
+
+static void renesas_usb3_ep_free_request(struct usb_ep *_ep,
+					 struct usb_request *_req)
+{
+	__renesas_usb3_ep_free_request(_req);
+}
+
+static int renesas_usb3_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+	struct renesas_usb3_request *usb3_req = usb_req_to_usb3_req(_req);
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+
+	dev_dbg(usb3_to_dev(usb3), "ep_dequeue: ep%2d, %u\n", usb3_ep->num,
+		_req->length);
+
+	usb3_request_done_pipen(usb3, usb3_ep, usb3_req, -ECONNRESET);
+
+	return 0;
+}
+
+static int renesas_usb3_ep_set_halt(struct usb_ep *_ep, int value)
+{
+	return usb3_set_halt(usb_ep_to_usb3_ep(_ep), !!value, false);
+}
+
+static int renesas_usb3_ep_set_wedge(struct usb_ep *_ep)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+
+	usb3_ep->wedge = true;
+	return usb3_set_halt(usb3_ep, true, false);
+}
+
+static void renesas_usb3_ep_fifo_flush(struct usb_ep *_ep)
+{
+	struct renesas_usb3_ep *usb3_ep = usb_ep_to_usb3_ep(_ep);
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	if (usb3_ep->num) {
+		spin_lock_irqsave(&usb3->lock, flags);
+		if (!usb3_pn_change(usb3, usb3_ep->num)) {
+			usb3_pn_con_clear(usb3);
+			usb3_set_bit(usb3, PN_CON_EN, USB3_PN_CON);
+		}
+		spin_unlock_irqrestore(&usb3->lock, flags);
+	} else {
+		usb3_p0_con_clear_buffer(usb3);
+	}
+}
+
+static struct usb_ep_ops renesas_usb3_ep_ops = {
+	.enable		= renesas_usb3_ep_enable,
+	.disable	= renesas_usb3_ep_disable,
+
+	.alloc_request	= renesas_usb3_ep_alloc_request,
+	.free_request	= renesas_usb3_ep_free_request,
+
+	.queue		= renesas_usb3_ep_queue,
+	.dequeue	= renesas_usb3_ep_dequeue,
+
+	.set_halt	= renesas_usb3_ep_set_halt,
+	.set_wedge	= renesas_usb3_ep_set_wedge,
+	.fifo_flush	= renesas_usb3_ep_fifo_flush,
+};
+
+/*------- usb_gadget_ops -------------------------------------------------*/
+static int renesas_usb3_start(struct usb_gadget *gadget,
+			      struct usb_gadget_driver *driver)
+{
+	struct renesas_usb3 *usb3;
+
+	if (!driver || driver->max_speed < USB_SPEED_FULL ||
+	    !driver->setup)
+		return -EINVAL;
+
+	usb3 = gadget_to_renesas_usb3(gadget);
+
+	/* hook up the driver */
+	usb3->driver = driver;
+
+	renesas_usb3_init_controller(usb3);
+
+	return 0;
+}
+
+static int renesas_usb3_stop(struct usb_gadget *gadget)
+{
+	struct renesas_usb3 *usb3 = gadget_to_renesas_usb3(gadget);
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	usb3->softconnect = false;
+	usb3->gadget.speed = USB_SPEED_UNKNOWN;
+	usb3->driver = NULL;
+	renesas_usb3_stop_controller(usb3);
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	return 0;
+}
+
+static int renesas_usb3_get_frame(struct usb_gadget *_gadget)
+{
+	return -EOPNOTSUPP;
+}
+
+static int renesas_usb3_pullup(struct usb_gadget *gadget, int is_on)
+{
+	struct renesas_usb3 *usb3 = gadget_to_renesas_usb3(gadget);
+
+	usb3->softconnect = !!is_on;
+
+	return 0;
+}
+
+static int renesas_usb3_set_selfpowered(struct usb_gadget *gadget, int is_self)
+{
+	gadget->is_selfpowered = !!is_self;
+
+	return 0;
+}
+
+static const struct usb_gadget_ops renesas_usb3_gadget_ops = {
+	.get_frame		= renesas_usb3_get_frame,
+	.udc_start		= renesas_usb3_start,
+	.udc_stop		= renesas_usb3_stop,
+	.pullup			= renesas_usb3_pullup,
+	.set_selfpowered	= renesas_usb3_set_selfpowered,
+};
+
+/*------- platform_driver ------------------------------------------------*/
+static int renesas_usb3_remove(struct platform_device *pdev)
+{
+	struct renesas_usb3 *usb3 = platform_get_drvdata(pdev);
+
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	usb_del_gadget_udc(&usb3->gadget);
+
+	__renesas_usb3_ep_free_request(usb3->ep0_req);
+
+	return 0;
+}
+
+static int renesas_usb3_init_ep(struct renesas_usb3 *usb3, struct device *dev,
+				const struct renesas_usb3_priv *priv)
+{
+	struct renesas_usb3_ep *usb3_ep;
+	int i;
+
+	/* calculate num_usb3_eps from renesas_usb3_priv */
+	usb3->num_usb3_eps = priv->ramsize_per_ramif * priv->num_ramif * 2 /
+			     priv->ramsize_per_pipe + 1;
+
+	if (usb3->num_usb3_eps > USB3_MAX_NUM_PIPES)
+		usb3->num_usb3_eps = USB3_MAX_NUM_PIPES;
+
+	usb3->usb3_ep = devm_kzalloc(dev, sizeof(*usb3_ep) * usb3->num_usb3_eps,
+				     GFP_KERNEL);
+	if (!usb3->usb3_ep)
+		return -ENOMEM;
+
+	dev_dbg(dev, "%s: num_usb3_eps = %d\n", __func__, usb3->num_usb3_eps);
+	/*
+	 * This driver prepares pipes as the followings:
+	 *  - odd pipes = IN pipe
+	 *  - even pipes = OUT pipe (except pipe 0)
+	 */
+	usb3_for_each_ep(usb3_ep, usb3, i) {
+		snprintf(usb3_ep->ep_name, sizeof(usb3_ep->ep_name), "ep%d", i);
+		usb3_ep->usb3 = usb3;
+		usb3_ep->num = i;
+		usb3_ep->ep.name = usb3_ep->ep_name;
+		usb3_ep->ep.ops = &renesas_usb3_ep_ops;
+		INIT_LIST_HEAD(&usb3_ep->queue);
+		INIT_LIST_HEAD(&usb3_ep->ep.ep_list);
+		if (!i) {
+			/* for control pipe */
+			usb3->gadget.ep0 = &usb3_ep->ep;
+			usb_ep_set_maxpacket_limit(&usb3_ep->ep,
+						USB3_EP0_HSFS_MAX_PACKET_SIZE);
+			usb3_ep->ep.caps.type_control = true;
+			usb3_ep->ep.caps.dir_in = true;
+			usb3_ep->ep.caps.dir_out = true;
+			continue;
+		}
+
+		/* for bulk or interrupt pipe */
+		usb_ep_set_maxpacket_limit(&usb3_ep->ep, ~0);
+		list_add_tail(&usb3_ep->ep.ep_list, &usb3->gadget.ep_list);
+		usb3_ep->ep.caps.type_bulk = true;
+		usb3_ep->ep.caps.type_int = true;
+		if (i & 1)
+			usb3_ep->ep.caps.dir_in = true;
+		else
+			usb3_ep->ep.caps.dir_out = true;
+	}
+
+	return 0;
+}
+
+static void renesas_usb3_init_ram(struct renesas_usb3 *usb3, struct device *dev,
+				  const struct renesas_usb3_priv *priv)
+{
+	struct renesas_usb3_ep *usb3_ep;
+	int i;
+	u32 ramif[2], basead[2];	/* index 0 = for IN pipes */
+	u32 *cur_ramif, *cur_basead;
+	u32 val;
+
+	memset(ramif, 0, sizeof(ramif));
+	memset(basead, 0, sizeof(basead));
+
+	/*
+	 * This driver prepares pipes as the followings:
+	 *  - all pipes = the same size as "ramsize_per_pipe"
+	 * Please refer to the "Method of Specifying RAM Mapping"
+	 */
+	usb3_for_each_ep(usb3_ep, usb3, i) {
+		if (!i)
+			continue;	/* out of scope if ep num = 0 */
+		if (usb3_ep->ep.caps.dir_in) {
+			cur_ramif = &ramif[0];
+			cur_basead = &basead[0];
+		} else {
+			cur_ramif = &ramif[1];
+			cur_basead = &basead[1];
+		}
+
+		if (*cur_basead > priv->ramsize_per_ramif)
+			continue;	/* out of memory for IN or OUT pipe */
+
+		/* calculate rammap_val */
+		val = PN_RAMMAP_RAMIF(*cur_ramif);
+		val |= usb3_calc_ramarea(priv->ramsize_per_pipe);
+		val |= PN_RAMMAP_BASEAD(*cur_basead);
+		usb3_ep->rammap_val = val;
+
+		dev_dbg(dev, "ep%2d: val = %08x, ramif = %d, base = %x\n",
+			i, val, *cur_ramif, *cur_basead);
+
+		/* update current ramif */
+		if (*cur_ramif + 1 == priv->num_ramif) {
+			*cur_ramif = 0;
+			*cur_basead += priv->ramsize_per_pipe;
+		} else {
+			(*cur_ramif)++;
+		}
+	}
+}
+
+static const struct renesas_usb3_priv renesas_usb3_priv_r8a7795 = {
+	.ramsize_per_ramif = SZ_16K,
+	.num_ramif = 2,
+	.ramsize_per_pipe = SZ_4K,
+	.workaround_for_vbus = true,
+};
+
+static const struct of_device_id usb3_of_match[] = {
+	{
+		.compatible = "renesas,r8a7795-usb3-peri",
+		.data = &renesas_usb3_priv_r8a7795,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, usb3_of_match);
+
+static int renesas_usb3_probe(struct platform_device *pdev)
+{
+	struct renesas_usb3 *usb3;
+	struct resource *res;
+	const struct of_device_id *match;
+	int irq, ret;
+	const struct renesas_usb3_priv *priv;
+
+	match = of_match_node(usb3_of_match, pdev->dev.of_node);
+	if (!match)
+		return -ENODEV;
+	priv = match->data;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return -ENODEV;
+
+	usb3 = devm_kzalloc(&pdev->dev, sizeof(*usb3), GFP_KERNEL);
+	if (!usb3)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	usb3->reg = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(usb3->reg))
+		return PTR_ERR(usb3->reg);
+
+	platform_set_drvdata(pdev, usb3);
+	spin_lock_init(&usb3->lock);
+
+	usb3->gadget.ops = &renesas_usb3_gadget_ops;
+	usb3->gadget.name = udc_name;
+	usb3->gadget.max_speed = USB_SPEED_SUPER;
+	INIT_LIST_HEAD(&usb3->gadget.ep_list);
+	ret = renesas_usb3_init_ep(usb3, &pdev->dev, priv);
+	if (ret < 0)
+		return ret;
+	renesas_usb3_init_ram(usb3, &pdev->dev, priv);
+
+	ret = devm_request_irq(&pdev->dev, irq, renesas_usb3_irq, 0,
+			       dev_name(&pdev->dev), usb3);
+	if (ret < 0)
+		return ret;
+
+	/* for ep0 handling */
+	usb3->ep0_req = __renesas_usb3_ep_alloc_request(GFP_KERNEL);
+	if (!usb3->ep0_req)
+		return -ENOMEM;
+
+	ret = usb_add_gadget_udc(&pdev->dev, &usb3->gadget);
+	if (ret < 0)
+		goto err_add_udc;
+
+	usb3->workaround_for_vbus = priv->workaround_for_vbus;
+
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
+	dev_info(&pdev->dev, "probed\n");
+
+	return 0;
+
+err_add_udc:
+	__renesas_usb3_ep_free_request(usb3->ep0_req);
+
+	return ret;
+}
+
+static struct platform_driver renesas_usb3_driver = {
+	.probe		= renesas_usb3_probe,
+	.remove		= renesas_usb3_remove,
+	.driver		= {
+		.name =	(char *)udc_name,
+		.of_match_table = of_match_ptr(usb3_of_match),
+	},
+};
+module_platform_driver(renesas_usb3_driver);
+
+MODULE_DESCRIPTION("Renesas USB3.0 Peripheral driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>");
+MODULE_ALIAS("platform:renesas_usb3");
diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index e9def42ce50d..82a9e2a3bedc 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -569,7 +569,7 @@ static int s3c_hsudc_handle_reqfeat(struct s3c_hsudc *hsudc,
 		hsep = &hsudc->ep[ep_num];
 		switch (le16_to_cpu(ctrl->wValue)) {
 		case USB_ENDPOINT_HALT:
-			if (set || (!set && !hsep->wedge))
+			if (set || !hsep->wedge)
 				s3c_hsudc_set_halt(&hsep->ep, set);
 			return 0;
 		}
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index f660afba715d..fd73a3ea07c2 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -51,8 +51,12 @@ struct usb_udc {
 
 static struct class *udc_class;
 static LIST_HEAD(udc_list);
+static LIST_HEAD(gadget_driver_pending_list);
 static DEFINE_MUTEX(udc_lock);
 
+static int udc_bind_to_driver(struct usb_udc *udc,
+		struct usb_gadget_driver *driver);
+
 /* ------------------------------------------------------------------------- */
 
 #ifdef	CONFIG_HAS_DMA
@@ -356,6 +360,7 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget,
 		void (*release)(struct device *dev))
 {
 	struct usb_udc		*udc;
+	struct usb_gadget_driver *driver;
 	int			ret = -ENOMEM;
 
 	udc = kzalloc(sizeof(*udc), GFP_KERNEL);
@@ -403,6 +408,18 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget,
 	usb_gadget_set_state(gadget, USB_STATE_NOTATTACHED);
 	udc->vbus = true;
 
+	/* pick up one of pending gadget drivers */
+	list_for_each_entry(driver, &gadget_driver_pending_list, pending) {
+		if (!driver->udc_name || strcmp(driver->udc_name,
+						dev_name(&udc->dev)) == 0) {
+			ret = udc_bind_to_driver(udc, driver);
+			if (ret)
+				goto err4;
+			list_del(&driver->pending);
+			break;
+		}
+	}
+
 	mutex_unlock(&udc_lock);
 
 	return 0;
@@ -473,10 +490,14 @@ void usb_del_gadget_udc(struct usb_gadget *gadget)
 
 	mutex_lock(&udc_lock);
 	list_del(&udc->list);
-	mutex_unlock(&udc_lock);
 
-	if (udc->driver)
+	if (udc->driver) {
+		struct usb_gadget_driver *driver = udc->driver;
+
 		usb_gadget_remove_driver(udc);
+		list_add(&driver->pending, &gadget_driver_pending_list);
+	}
+	mutex_unlock(&udc_lock);
 
 	kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE);
 	flush_work(&gadget->work);
@@ -520,50 +541,36 @@ err1:
 	return ret;
 }
 
-int usb_udc_attach_driver(const char *name, struct usb_gadget_driver *driver)
-{
-	struct usb_udc *udc = NULL;
-	int ret = -ENODEV;
-
-	mutex_lock(&udc_lock);
-	list_for_each_entry(udc, &udc_list, list) {
-		ret = strcmp(name, dev_name(&udc->dev));
-		if (!ret)
-			break;
-	}
-	if (ret) {
-		ret = -ENODEV;
-		goto out;
-	}
-	if (udc->driver) {
-		ret = -EBUSY;
-		goto out;
-	}
-	ret = udc_bind_to_driver(udc, driver);
-out:
-	mutex_unlock(&udc_lock);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(usb_udc_attach_driver);
-
 int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
 {
 	struct usb_udc		*udc = NULL;
-	int			ret;
+	int			ret = -ENODEV;
 
 	if (!driver || !driver->bind || !driver->setup)
 		return -EINVAL;
 
 	mutex_lock(&udc_lock);
-	list_for_each_entry(udc, &udc_list, list) {
-		/* For now we take the first one */
-		if (!udc->driver)
+	if (driver->udc_name) {
+		list_for_each_entry(udc, &udc_list, list) {
+			ret = strcmp(driver->udc_name, dev_name(&udc->dev));
+			if (!ret)
+				break;
+		}
+		if (!ret && !udc->driver)
 			goto found;
+	} else {
+		list_for_each_entry(udc, &udc_list, list) {
+			/* For now we take the first one */
+			if (!udc->driver)
+				goto found;
+		}
 	}
 
-	pr_debug("couldn't find an available UDC\n");
+	list_add_tail(&driver->pending, &gadget_driver_pending_list);
+	pr_info("udc-core: couldn't find an available UDC - added [%s] to list of pending drivers\n",
+		driver->function);
 	mutex_unlock(&udc_lock);
-	return -ENODEV;
+	return 0;
 found:
 	ret = udc_bind_to_driver(udc, driver);
 	mutex_unlock(&udc_lock);
@@ -589,6 +596,10 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 			break;
 		}
 
+	if (ret) {
+		list_del(&driver->pending);
+		ret = 0;
+	}
 	mutex_unlock(&udc_lock);
 	return ret;
 }
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 3bb08870148f..daa563ff1fa0 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -41,6 +41,15 @@ config USB_XHCI_PLATFORM
 
 	  If unsure, say N.
 
+config USB_XHCI_MTK
+	tristate "xHCI support for Mediatek MT65xx"
+	select MFD_SYSCON
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	---help---
+	  Say 'Y' to enable the support for the xHCI host controller
+	  found in Mediatek MT65xx SoCs.
+	  If unsure, say N.
+
 config USB_XHCI_MVEBU
 	tristate "xHCI support for Marvell Armada 375/38x"
 	select USB_XHCI_PLATFORM
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index e7558abc994d..65a06b4382bf 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -13,6 +13,9 @@ fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o
 xhci-hcd-y := xhci.o xhci-mem.o
 xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o
 xhci-hcd-y += xhci-trace.o
+ifneq ($(CONFIG_USB_XHCI_MTK), )
+	xhci-hcd-y += xhci-mtk-sch.o
+endif
 
 xhci-plat-hcd-y := xhci-plat.o
 ifneq ($(CONFIG_USB_XHCI_MVEBU), )
@@ -64,6 +67,7 @@ obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
 obj-$(CONFIG_USB_XHCI_HCD)	+= xhci-hcd.o
 obj-$(CONFIG_USB_XHCI_PCI)	+= xhci-pci.o
 obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o
+obj-$(CONFIG_USB_XHCI_MTK)	+= xhci-mtk.o
 obj-$(CONFIG_USB_SL811_HCD)	+= sl811-hcd.o
 obj-$(CONFIG_USB_SL811_CS)	+= sl811_cs.o
 obj-$(CONFIG_USB_U132_HCD)	+= u132-hcd.o
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 5398e3d42822..291aaa2baed8 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -21,6 +21,7 @@
  */
 #include <linux/bcma/bcma.h>
 #include <linux/delay.h>
+#include <linux/gpio/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -36,6 +37,7 @@ MODULE_LICENSE("GPL");
 struct bcma_hcd_device {
 	struct platform_device *ehci_dev;
 	struct platform_device *ohci_dev;
+	struct gpio_desc *gpio_desc;
 };
 
 /* Wait for bitmask in a register to get set or cleared.
@@ -228,19 +230,12 @@ static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
 
 static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
 {
-	int gpio;
+	struct bcma_hcd_device *usb_dev = bcma_get_drvdata(dev);
 
-	gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
-	if (!gpio_is_valid(gpio))
+	if (IS_ERR_OR_NULL(usb_dev->gpio_desc))
 		return;
 
-	if (val) {
-		gpio_request(gpio, "bcma-hcd-gpio");
-		gpio_set_value(gpio, 1);
-	} else {
-		gpio_set_value(gpio, 0);
-		gpio_free(gpio);
-	}
+	gpiod_set_value(usb_dev->gpio_desc, val);
 }
 
 static const struct usb_ehci_pdata ehci_pdata = {
@@ -314,7 +309,11 @@ static int bcma_hcd_probe(struct bcma_device *dev)
 	if (!usb_dev)
 		return -ENOMEM;
 
-	bcma_hci_platform_power_gpio(dev, true);
+	if (dev->dev.of_node)
+		usb_dev->gpio_desc = devm_get_gpiod_from_child(&dev->dev, "vcc",
+							       &dev->dev.of_node->fwnode);
+	if (!IS_ERR_OR_NULL(usb_dev->gpio_desc))
+		gpiod_direction_output(usb_dev->gpio_desc, 1);
 
 	switch (dev->id.id) {
 	case BCMA_CORE_NS_USB20:
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index b26b96e25a13..b7d623f1523c 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -436,7 +436,8 @@ static void qh_lines (
 	scratch = hc32_to_cpup(ehci, &hw->hw_info1);
 	hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &hw->hw_current) : 0;
 	temp = scnprintf (next, size,
-			"qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)",
+			"qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)"
+			" [cur %08x next %08x buf[0] %08x]",
 			qh, scratch & 0x007f,
 			speed_char (scratch),
 			(scratch >> 8) & 0x000f,
@@ -444,7 +445,10 @@ static void qh_lines (
 			hc32_to_cpup(ehci, &hw->hw_token), mark,
 			(cpu_to_hc32(ehci, QTD_TOGGLE) & hw->hw_token)
 				? "data1" : "data0",
-			(hc32_to_cpup(ehci, &hw->hw_alt_next) >> 1) & 0x0f);
+			(hc32_to_cpup(ehci, &hw->hw_alt_next) >> 1) & 0x0f,
+			hc32_to_cpup(ehci, &hw->hw_current),
+			hc32_to_cpup(ehci, &hw->hw_qtd_next),
+			hc32_to_cpup(ehci, &hw->hw_buf[0]));
 	size -= temp;
 	next += temp;
 
@@ -464,7 +468,8 @@ static void qh_lines (
 				mark = '/';
 		}
 		temp = snprintf (next, size,
-				"\n\t%p%c%s len=%d %08x urb %p",
+				"\n\t%p%c%s len=%d %08x urb %p"
+				" [td %08x buf[0] %08x]",
 				td, mark, ({ char *tmp;
 				 switch ((scratch>>8)&0x03) {
 				 case 0: tmp = "out"; break;
@@ -474,7 +479,9 @@ static void qh_lines (
 				 } tmp;}),
 				(scratch >> 16) & 0x7fff,
 				scratch,
-				td->urb);
+				td->urb,
+				(u32) td->qtd_dma,
+				hc32_to_cpup(ehci, &td->hw_buf[0]));
 		if (size < temp)
 			temp = size;
 		size -= temp;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 48c92bf78bd0..14178bbf0694 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -98,7 +98,7 @@ module_param (park, uint, S_IRUGO);
 MODULE_PARM_DESC (park, "park setting; 1-3 back-to-back async packets");
 
 /* for flakey hardware, ignore overcurrent indicators */
-static bool ignore_oc = 0;
+static bool ignore_oc;
 module_param (ignore_oc, bool, S_IRUGO);
 MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
 
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index b6205fac3567..4de43011df23 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -128,21 +128,13 @@ static void ehci_mem_cleanup (struct ehci_hcd *ehci)
 	ehci->dummy = NULL;
 
 	/* DMA consistent memory and pools */
-	if (ehci->qtd_pool)
-		dma_pool_destroy (ehci->qtd_pool);
+	dma_pool_destroy(ehci->qtd_pool);
 	ehci->qtd_pool = NULL;
-
-	if (ehci->qh_pool) {
-		dma_pool_destroy (ehci->qh_pool);
-		ehci->qh_pool = NULL;
-	}
-
-	if (ehci->itd_pool)
-		dma_pool_destroy (ehci->itd_pool);
+	dma_pool_destroy(ehci->qh_pool);
+	ehci->qh_pool = NULL;
+	dma_pool_destroy(ehci->itd_pool);
 	ehci->itd_pool = NULL;
-
-	if (ehci->sitd_pool)
-		dma_pool_destroy (ehci->sitd_pool);
+	dma_pool_destroy(ehci->sitd_pool);
 	ehci->sitd_pool = NULL;
 
 	if (ehci->periodic)
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index c4f84c81de01..c23e2858c815 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -57,8 +57,8 @@ static int ehci_msm_reset(struct usb_hcd *hcd)
 
 	/* bursts of unspecified length. */
 	writel(0, USB_AHBBURST);
-	/* Use the AHB transactor */
-	writel(0, USB_AHBMODE);
+	/* Use the AHB transactor, allow posted data writes */
+	writel(0x8, USB_AHBMODE);
 	/* Disable streaming mode and select host mode */
 	writel(0x13, USB_USBMODE);
 
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 54f5332f814d..aad0777240d3 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -132,10 +132,14 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh)
 	 * qtd is updated in qh_completions(). Update the QH
 	 * overlay here.
 	 */
-	if (qh->hw->hw_token & ACTIVE_BIT(ehci))
+	if (qh->hw->hw_token & ACTIVE_BIT(ehci)) {
 		qh->hw->hw_qtd_next = qtd->hw_next;
-	else
+		if (qh->should_be_inactive)
+			ehci_warn(ehci, "qh %p should be inactive!\n", qh);
+	} else {
 		qh_update(ehci, qh, qtd);
+	}
+	qh->should_be_inactive = 0;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -438,6 +442,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
 					(hw->hw_token & ACTIVE_BIT(ehci))) {
 				token = hc32_to_cpu(ehci, hw->hw_token);
 				hw->hw_token &= ~ACTIVE_BIT(ehci);
+				qh->should_be_inactive = 1;
 
 				/* An unlink may leave an incomplete
 				 * async transaction in the TT buffer.
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 46f62e41bcde..ec61aedb0067 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -439,6 +439,7 @@ struct ehci_qh {
 	unsigned		dequeue_during_giveback:1;
 	unsigned		exception:1;	/* got a fault, or an unlink
 						   was requested */
+	unsigned		should_be_inactive:1;
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index c6cebb96fd21..0960f41f945a 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -31,7 +31,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/qe.h>
 #include <asm/fsl_gtm.h>
 #include "fhci.h"
 
diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c
index 3bacdd7befe9..60d55eb3de0d 100644
--- a/drivers/usb/host/fhci-hub.c
+++ b/drivers/usb/host/fhci-hub.c
@@ -24,7 +24,7 @@
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
 #include <linux/gpio.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/qe.h>
 #include "fhci.h"
 
 /* virtual root hub specific descriptor */
diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index 95ca5986e672..a9609a336efe 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -25,7 +25,7 @@
 #include <linux/io.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
-#include <asm/qe.h>
+#include <soc/fsl/qe/qe.h>
 #include <asm/fsl_gtm.h>
 #include "fhci.h"
 
diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index 1498061f0aea..f82ad5df1b0d 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -85,7 +85,7 @@ static struct usb_td __iomem *next_bd(struct usb_td __iomem *base,
 
 void fhci_push_dummy_bd(struct endpoint *ep)
 {
-	if (ep->already_pushed_dummy_bd == false) {
+	if (!ep->already_pushed_dummy_bd) {
 		u16 td_status = in_be16(&ep->empty_td->status);
 
 		out_be32(&ep->empty_td->buf_ptr, DUMMY_BD_BUFFER);
diff --git a/drivers/usb/host/fhci.h b/drivers/usb/host/fhci.h
index 154e6a007727..3fc82c1c3c73 100644
--- a/drivers/usb/host/fhci.h
+++ b/drivers/usb/host/fhci.h
@@ -27,8 +27,8 @@
 #include <linux/io.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
-#include <asm/qe.h>
-#include <asm/immap_qe.h>
+#include <soc/fsl/qe/qe.h>
+#include <soc/fsl/qe/immap_qe.h>
 
 #define USB_CLOCK	48000000
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 760cb57e954e..04dcedfdebf8 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -99,13 +99,13 @@ static void io_watchdog_func(unsigned long _ohci);
 
 
 /* Some boards misreport power switching/overcurrent */
-static bool distrust_firmware = 1;
+static bool distrust_firmware = true;
 module_param (distrust_firmware, bool, 0);
 MODULE_PARM_DESC (distrust_firmware,
 	"true to distrust firmware power/overcurrent setup");
 
 /* Some boards leave IR set wrongly, since they fail BIOS/SMM handshakes */
-static bool no_handshake = 0;
+static bool no_handshake;
 module_param (no_handshake, bool, 0);
 MODULE_PARM_DESC (no_handshake, "true (not default) disables BIOS handshake");
 
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index ba1bec7db026..e8c006e7a960 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -365,19 +365,19 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
 	if (!pdata)
 		return -ENOMEM;
 
-	if (of_get_property(np, "marvell,enable-port1", NULL))
+	if (of_property_read_bool(np, "marvell,enable-port1"))
 		pdata->flags |= ENABLE_PORT1;
-	if (of_get_property(np, "marvell,enable-port2", NULL))
+	if (of_property_read_bool(np, "marvell,enable-port2"))
 		pdata->flags |= ENABLE_PORT2;
-	if (of_get_property(np, "marvell,enable-port3", NULL))
+	if (of_property_read_bool(np, "marvell,enable-port3"))
 		pdata->flags |= ENABLE_PORT3;
-	if (of_get_property(np, "marvell,port-sense-low", NULL))
+	if (of_property_read_bool(np, "marvell,port-sense-low"))
 		pdata->flags |= POWER_SENSE_LOW;
-	if (of_get_property(np, "marvell,power-control-low", NULL))
+	if (of_property_read_bool(np, "marvell,power-control-low"))
 		pdata->flags |= POWER_CONTROL_LOW;
-	if (of_get_property(np, "marvell,no-oc-protection", NULL))
+	if (of_property_read_bool(np, "marvell,no-oc-protection"))
 		pdata->flags |= NO_OC_PROTECTION;
-	if (of_get_property(np, "marvell,oc-mode-perport", NULL))
+	if (of_property_read_bool(np, "marvell,oc-mode-perport"))
 		pdata->flags |= OC_MODE_PERPORT;
 	if (!of_property_read_u32(np, "marvell,power-on-delay", &tmp))
 		pdata->power_on_delay = tmp;
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 1f139d82cee0..bc74aca8a54c 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -394,8 +394,7 @@ static void ehci_quiesce(struct oxu_hcd *oxu)
 	u32	temp;
 
 #ifdef DEBUG
-	if (!HC_IS_RUNNING(oxu_to_hcd(oxu)->state))
-		BUG();
+	BUG_ON(!HC_IS_RUNNING(oxu_to_hcd(oxu)->state));
 #endif
 
 	/* wait for any schedule enables/disables to take effect */
@@ -1709,9 +1708,8 @@ static void start_unlink_async(struct oxu_hcd *oxu, struct ehci_qh *qh)
 
 #ifdef DEBUG
 	assert_spin_locked(&oxu->lock);
-	if (oxu->reclaim || (qh->qh_state != QH_STATE_LINKED
-				&& qh->qh_state != QH_STATE_UNLINK_WAIT))
-		BUG();
+	BUG_ON(oxu->reclaim || (qh->qh_state != QH_STATE_LINKED
+				&& qh->qh_state != QH_STATE_UNLINK_WAIT));
 #endif
 
 	/* stop async schedule right now? */
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index f9400564cb72..26cb8c861e6e 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -984,24 +984,17 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	 * Find the Legacy Support Capability register -
 	 * this is optional for xHCI host controllers.
 	 */
-	ext_cap_offset = xhci_find_next_cap_offset(base, XHCI_HCC_PARAMS_OFFSET);
-	do {
-		if ((ext_cap_offset + sizeof(val)) > len) {
-			/* We're reading garbage from the controller */
-			dev_warn(&pdev->dev,
-				 "xHCI controller failing to respond");
-			return;
-		}
+	ext_cap_offset = xhci_find_next_ext_cap(base, 0, XHCI_EXT_CAPS_LEGACY);
 
-		if (!ext_cap_offset)
-			/* We've reached the end of the extended capabilities */
-			goto hc_init;
+	if (!ext_cap_offset)
+		goto hc_init;
 
-		val = readl(base + ext_cap_offset);
-		if (XHCI_EXT_CAPS_ID(val) == XHCI_EXT_CAPS_LEGACY)
-			break;
-		ext_cap_offset = xhci_find_next_cap_offset(base, ext_cap_offset);
-	} while (1);
+	if ((ext_cap_offset + sizeof(val)) > len) {
+		/* We're reading garbage from the controller */
+		dev_warn(&pdev->dev, "xHCI controller failing to respond");
+		return;
+	}
+	val = readl(base + ext_cap_offset);
 
 	/* If the BIOS owns the HC, signal that the OS wants it, and wait */
 	if (val & XHCI_HC_BIOS_OWNED) {
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index 692ccc69345e..05c85c7baf84 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -73,7 +73,7 @@ MODULE_LICENSE("GPL");
 #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
 INT_MODULE_PARM(testing, 0);
 /* Some boards misreport power switching/overcurrent*/
-static bool distrust_firmware = 1;
+static bool distrust_firmware = true;
 module_param(distrust_firmware, bool, 0);
 MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
 	"t setup");
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index da6f56d996ce..c17ea1589b83 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -248,11 +248,10 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci,
 	dma_addr_t dma_handle;
 	struct uhci_qh *qh;
 
-	qh = dma_pool_alloc(uhci->qh_pool, GFP_ATOMIC, &dma_handle);
+	qh = dma_pool_zalloc(uhci->qh_pool, GFP_ATOMIC, &dma_handle);
 	if (!qh)
 		return NULL;
 
-	memset(qh, 0, sizeof(*qh));
 	qh->dma_handle = dma_handle;
 
 	qh->element = UHCI_PTR_TERM(uhci);
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 9f1c0538b211..1a8e960d073b 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -30,10 +30,9 @@ struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags)
 	struct whc_qset *qset;
 	dma_addr_t dma;
 
-	qset = dma_pool_alloc(whc->qset_pool, mem_flags, &dma);
+	qset = dma_pool_zalloc(whc->qset_pool, mem_flags, &dma);
 	if (qset == NULL)
 		return NULL;
-	memset(qset, 0, sizeof(struct whc_qset));
 
 	qset->qset_dma = dma;
 	qset->whc = whc;
@@ -400,7 +399,7 @@ static void urb_dequeue_work(struct work_struct *work)
 	struct whc *whc = qset->whc;
 	unsigned long flags;
 
-	if (wurb->is_async == true)
+	if (wurb->is_async)
 		asl_update(whc, WUSBCMD_ASYNC_UPDATED
 			   | WUSBCMD_ASYNC_SYNCED_DB
 			   | WUSBCMD_ASYNC_QSET_RM);
diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h
index 9fe3225e6c61..04ce6b156b35 100644
--- a/drivers/usb/host/xhci-ext-caps.h
+++ b/drivers/usb/host/xhci-ext-caps.h
@@ -91,66 +91,39 @@
 #include <linux/io.h>
 
 /**
- * Return the next extended capability pointer register.
- *
- * @base	PCI register base address.
- *
- * @ext_offset	Offset of the 32-bit register that contains the extended
- * capabilites pointer.  If searching for the first extended capability, pass
- * in XHCI_HCC_PARAMS_OFFSET.  If searching for the next extended capability,
- * pass in the offset of the current extended capability register.
- *
- * Returns 0 if there is no next extended capability register or returns the register offset
- * from the PCI registers base address.
- */
-static inline int xhci_find_next_cap_offset(void __iomem *base, int ext_offset)
-{
-	u32 next;
-
-	next = readl(base + ext_offset);
-
-	if (ext_offset == XHCI_HCC_PARAMS_OFFSET) {
-		/* Find the first extended capability */
-		next = XHCI_HCC_EXT_CAPS(next);
-		ext_offset = 0;
-	} else {
-		/* Find the next extended capability */
-		next = XHCI_EXT_CAPS_NEXT(next);
-	}
-
-	if (!next)
-		return 0;
-	/*
-	 * Address calculation from offset of extended capabilities
-	 * (or HCCPARAMS) register - see section 5.3.6 and section 7.
-	 */
-	return ext_offset + (next << 2);
-}
-
-/**
  * Find the offset of the extended capabilities with capability ID id.
  *
- * @base PCI MMIO registers base address.
- * @ext_offset Offset from base of the first extended capability to look at,
- * 		or the address of HCCPARAMS.
- * @id Extended capability ID to search for.
+ * @base	PCI MMIO registers base address.
+ * @start	address at which to start looking, (0 or HCC_PARAMS to start at
+ *		beginning of list)
+ * @id		Extended capability ID to search for.
  *
- * This uses an arbitrary limit of XHCI_MAX_EXT_CAPS extended capabilities
- * to make sure that the list doesn't contain a loop.
+ * Returns the offset of the next matching extended capability structure.
+ * Some capabilities can occur several times, e.g., the XHCI_EXT_CAPS_PROTOCOL,
+ * and this provides a way to find them all.
  */
-static inline int xhci_find_ext_cap_by_id(void __iomem *base, int ext_offset, int id)
+
+static inline int xhci_find_next_ext_cap(void __iomem *base, u32 start, int id)
 {
 	u32 val;
-	int limit = XHCI_MAX_EXT_CAPS;
-
-	while (ext_offset && limit > 0) {
-		val = readl(base + ext_offset);
-		if (XHCI_EXT_CAPS_ID(val) == id)
-			break;
-		ext_offset = xhci_find_next_cap_offset(base, ext_offset);
-		limit--;
-	}
-	if (limit > 0)
-		return ext_offset;
+	u32 next;
+	u32 offset;
+
+	offset = start;
+	if (!start || start == XHCI_HCC_PARAMS_OFFSET) {
+		val = readl(base + XHCI_HCC_PARAMS_OFFSET);
+		offset = XHCI_HCC_EXT_CAPS(val) << 2;
+		if (!offset)
+			return 0;
+	};
+	do {
+		val = readl(base + offset);
+		if (XHCI_EXT_CAPS_ID(val) == id && offset != start)
+			return offset;
+
+		next = XHCI_EXT_CAPS_NEXT(val);
+		offset += next << 2;
+	} while (next);
+
 	return 0;
 }
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index f980c239eded..b30b4ce294d3 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -855,7 +855,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 		xhci_hub_report_usb2_link_state(&status, raw_port_status);
 	}
 	if (bus_state->port_c_suspend & (1 << wIndex))
-		status |= 1 << USB_PORT_FEAT_C_SUSPEND;
+		status |= USB_PORT_STAT_C_SUSPEND << 16;
 
 	return status;
 }
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index c48cbe731356..5cd080e0a685 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -47,13 +47,12 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci,
 	if (!seg)
 		return NULL;
 
-	seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);
+	seg->trbs = dma_pool_zalloc(xhci->segment_pool, flags, &dma);
 	if (!seg->trbs) {
 		kfree(seg);
 		return NULL;
 	}
 
-	memset(seg->trbs, 0, TRB_SEGMENT_SIZE);
 	/* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */
 	if (cycle_state == 0) {
 		for (i = 0; i < TRBS_PER_SEGMENT; i++)
@@ -517,12 +516,11 @@ static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci
 	if (type == XHCI_CTX_TYPE_INPUT)
 		ctx->size += CTX_SIZE(xhci->hcc_params);
 
-	ctx->bytes = dma_pool_alloc(xhci->device_pool, flags, &ctx->dma);
+	ctx->bytes = dma_pool_zalloc(xhci->device_pool, flags, &ctx->dma);
 	if (!ctx->bytes) {
 		kfree(ctx);
 		return NULL;
 	}
-	memset(ctx->bytes, 0, ctx->size);
 	return ctx;
 }
 
@@ -1245,7 +1243,7 @@ static unsigned int xhci_microframes_to_exponent(struct usb_device *udev,
 	interval = fls(desc_interval) - 1;
 	interval = clamp_val(interval, min_exponent, max_exponent);
 	if ((1 << interval) != desc_interval)
-		dev_warn(&udev->dev,
+		dev_dbg(&udev->dev,
 			 "ep %#x - rounding interval to %d microframes, ep desc says %d microframes\n",
 			 ep->desc.bEndpointAddress,
 			 1 << interval,
@@ -2064,17 +2062,19 @@ static void xhci_set_hc_event_deq(struct xhci_hcd *xhci)
 }
 
 static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
-		__le32 __iomem *addr, u8 major_revision, int max_caps)
+		__le32 __iomem *addr, int max_caps)
 {
 	u32 temp, port_offset, port_count;
 	int i;
+	u8 major_revision;
 	struct xhci_hub *rhub;
 
 	temp = readl(addr);
+	major_revision = XHCI_EXT_PORT_MAJOR(temp);
 
-	if (XHCI_EXT_PORT_MAJOR(temp) == 0x03) {
+	if (major_revision == 0x03) {
 		rhub = &xhci->usb3_rhub;
-	} else if (XHCI_EXT_PORT_MAJOR(temp) <= 0x02) {
+	} else if (major_revision <= 0x02) {
 		rhub = &xhci->usb2_rhub;
 	} else {
 		xhci_warn(xhci, "Ignoring unknown port speed, "
@@ -2190,19 +2190,12 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
  */
 static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
 {
-	__le32 __iomem *addr, *tmp_addr;
-	u32 offset, tmp_offset;
+	void __iomem *base;
+	u32 offset;
 	unsigned int num_ports;
 	int i, j, port_index;
 	int cap_count = 0;
-
-	addr = &xhci->cap_regs->hcc_params;
-	offset = XHCI_HCC_EXT_CAPS(readl(addr));
-	if (offset == 0) {
-		xhci_err(xhci, "No Extended Capability registers, "
-				"unable to set up roothub.\n");
-		return -ENODEV;
-	}
+	u32 cap_start;
 
 	num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
 	xhci->port_array = kzalloc(sizeof(*xhci->port_array)*num_ports, flags);
@@ -2220,48 +2213,34 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
 		for (j = 0; j < XHCI_MAX_INTERVAL; j++)
 			INIT_LIST_HEAD(&bw_table->interval_bw[j].endpoints);
 	}
+	base = &xhci->cap_regs->hc_capbase;
 
-	/*
-	 * For whatever reason, the first capability offset is from the
-	 * capability register base, not from the HCCPARAMS register.
-	 * See section 5.3.6 for offset calculation.
-	 */
-	addr = &xhci->cap_regs->hc_capbase + offset;
-
-	tmp_addr = addr;
-	tmp_offset = offset;
+	cap_start = xhci_find_next_ext_cap(base, 0, XHCI_EXT_CAPS_PROTOCOL);
+	if (!cap_start) {
+		xhci_err(xhci, "No Extended Capability registers, unable to set up roothub\n");
+		return -ENODEV;
+	}
 
+	offset = cap_start;
 	/* count extended protocol capability entries for later caching */
-	do {
-		u32 cap_id;
-		cap_id = readl(tmp_addr);
-		if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL)
-			cap_count++;
-		tmp_offset = XHCI_EXT_CAPS_NEXT(cap_id);
-		tmp_addr += tmp_offset;
-	} while (tmp_offset);
+	while (offset) {
+		cap_count++;
+		offset = xhci_find_next_ext_cap(base, offset,
+						      XHCI_EXT_CAPS_PROTOCOL);
+	}
 
 	xhci->ext_caps = kzalloc(sizeof(*xhci->ext_caps) * cap_count, flags);
 	if (!xhci->ext_caps)
 		return -ENOMEM;
 
-	while (1) {
-		u32 cap_id;
-
-		cap_id = readl(addr);
-		if (XHCI_EXT_CAPS_ID(cap_id) == XHCI_EXT_CAPS_PROTOCOL)
-			xhci_add_in_port(xhci, num_ports, addr,
-					(u8) XHCI_EXT_PORT_MAJOR(cap_id),
-					cap_count);
-		offset = XHCI_EXT_CAPS_NEXT(cap_id);
-		if (!offset || (xhci->num_usb2_ports + xhci->num_usb3_ports)
-				== num_ports)
+	offset = cap_start;
+
+	while (offset) {
+		xhci_add_in_port(xhci, num_ports, base + offset, cap_count);
+		if (xhci->num_usb2_ports + xhci->num_usb3_ports == num_ports)
 			break;
-		/*
-		 * Once you're into the Extended Capabilities, the offset is
-		 * always relative to the register holding the offset.
-		 */
-		addr += offset;
+		offset = xhci_find_next_ext_cap(base, offset,
+						XHCI_EXT_CAPS_PROTOCOL);
 	}
 
 	if (xhci->num_usb2_ports == 0 && xhci->num_usb3_ports == 0) {
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
new file mode 100644
index 000000000000..c30de7c39f44
--- /dev/null
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -0,0 +1,415 @@
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author:
+ *  Zhigang.Wei <zhigang.wei@mediatek.com>
+ *  Chunfeng.Yun <chunfeng.yun@mediatek.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "xhci.h"
+#include "xhci-mtk.h"
+
+#define SS_BW_BOUNDARY	51000
+/* table 5-5. High-speed Isoc Transaction Limits in usb_20 spec */
+#define HS_BW_BOUNDARY	6144
+/* usb2 spec section11.18.1: at most 188 FS bytes per microframe */
+#define FS_PAYLOAD_MAX 188
+
+/* mtk scheduler bitmasks */
+#define EP_BPKTS(p)	((p) & 0x3f)
+#define EP_BCSCOUNT(p)	(((p) & 0x7) << 8)
+#define EP_BBM(p)	((p) << 11)
+#define EP_BOFFSET(p)	((p) & 0x3fff)
+#define EP_BREPEAT(p)	(((p) & 0x7fff) << 16)
+
+static int is_fs_or_ls(enum usb_device_speed speed)
+{
+	return speed == USB_SPEED_FULL || speed == USB_SPEED_LOW;
+}
+
+/*
+* get the index of bandwidth domains array which @ep belongs to.
+*
+* the bandwidth domain array is saved to @sch_array of struct xhci_hcd_mtk,
+* each HS root port is treated as a single bandwidth domain,
+* but each SS root port is treated as two bandwidth domains, one for IN eps,
+* one for OUT eps.
+* @real_port value is defined as follow according to xHCI spec:
+* 1 for SSport0, ..., N+1 for SSportN, N+2 for HSport0, N+3 for HSport1, etc
+* so the bandwidth domain array is organized as follow for simplification:
+* SSport0-OUT, SSport0-IN, ..., SSportX-OUT, SSportX-IN, HSport0, ..., HSportY
+*/
+static int get_bw_index(struct xhci_hcd *xhci, struct usb_device *udev,
+	struct usb_host_endpoint *ep)
+{
+	struct xhci_virt_device *virt_dev;
+	int bw_index;
+
+	virt_dev = xhci->devs[udev->slot_id];
+
+	if (udev->speed == USB_SPEED_SUPER) {
+		if (usb_endpoint_dir_out(&ep->desc))
+			bw_index = (virt_dev->real_port - 1) * 2;
+		else
+			bw_index = (virt_dev->real_port - 1) * 2 + 1;
+	} else {
+		/* add one more for each SS port */
+		bw_index = virt_dev->real_port + xhci->num_usb3_ports - 1;
+	}
+
+	return bw_index;
+}
+
+static void setup_sch_info(struct usb_device *udev,
+		struct xhci_ep_ctx *ep_ctx, struct mu3h_sch_ep_info *sch_ep)
+{
+	u32 ep_type;
+	u32 ep_interval;
+	u32 max_packet_size;
+	u32 max_burst;
+	u32 mult;
+	u32 esit_pkts;
+
+	ep_type = CTX_TO_EP_TYPE(le32_to_cpu(ep_ctx->ep_info2));
+	ep_interval = CTX_TO_EP_INTERVAL(le32_to_cpu(ep_ctx->ep_info));
+	max_packet_size = MAX_PACKET_DECODED(le32_to_cpu(ep_ctx->ep_info2));
+	max_burst = CTX_TO_MAX_BURST(le32_to_cpu(ep_ctx->ep_info2));
+	mult = CTX_TO_EP_MULT(le32_to_cpu(ep_ctx->ep_info));
+
+	sch_ep->esit = 1 << ep_interval;
+	sch_ep->offset = 0;
+	sch_ep->burst_mode = 0;
+
+	if (udev->speed == USB_SPEED_HIGH) {
+		sch_ep->cs_count = 0;
+
+		/*
+		 * usb_20 spec section5.9
+		 * a single microframe is enough for HS synchromous endpoints
+		 * in a interval
+		 */
+		sch_ep->num_budget_microframes = 1;
+		sch_ep->repeat = 0;
+
+		/*
+		 * xHCI spec section6.2.3.4
+		 * @max_burst is the number of additional transactions
+		 * opportunities per microframe
+		 */
+		sch_ep->pkts = max_burst + 1;
+		sch_ep->bw_cost_per_microframe = max_packet_size * sch_ep->pkts;
+	} else if (udev->speed == USB_SPEED_SUPER) {
+		/* usb3_r1 spec section4.4.7 & 4.4.8 */
+		sch_ep->cs_count = 0;
+		esit_pkts = (mult + 1) * (max_burst + 1);
+		if (ep_type == INT_IN_EP || ep_type == INT_OUT_EP) {
+			sch_ep->pkts = esit_pkts;
+			sch_ep->num_budget_microframes = 1;
+			sch_ep->repeat = 0;
+		}
+
+		if (ep_type == ISOC_IN_EP || ep_type == ISOC_OUT_EP) {
+			if (esit_pkts <= sch_ep->esit)
+				sch_ep->pkts = 1;
+			else
+				sch_ep->pkts = roundup_pow_of_two(esit_pkts)
+					/ sch_ep->esit;
+
+			sch_ep->num_budget_microframes =
+				DIV_ROUND_UP(esit_pkts, sch_ep->pkts);
+
+			if (sch_ep->num_budget_microframes > 1)
+				sch_ep->repeat = 1;
+			else
+				sch_ep->repeat = 0;
+		}
+		sch_ep->bw_cost_per_microframe = max_packet_size * sch_ep->pkts;
+	} else if (is_fs_or_ls(udev->speed)) {
+
+		/*
+		 * usb_20 spec section11.18.4
+		 * assume worst cases
+		 */
+		sch_ep->repeat = 0;
+		sch_ep->pkts = 1; /* at most one packet for each microframe */
+		if (ep_type == INT_IN_EP || ep_type == INT_OUT_EP) {
+			sch_ep->cs_count = 3; /* at most need 3 CS*/
+			/* one for SS and one for budgeted transaction */
+			sch_ep->num_budget_microframes = sch_ep->cs_count + 2;
+			sch_ep->bw_cost_per_microframe = max_packet_size;
+		}
+		if (ep_type == ISOC_OUT_EP) {
+
+			/*
+			 * the best case FS budget assumes that 188 FS bytes
+			 * occur in each microframe
+			 */
+			sch_ep->num_budget_microframes = DIV_ROUND_UP(
+				max_packet_size, FS_PAYLOAD_MAX);
+			sch_ep->bw_cost_per_microframe = FS_PAYLOAD_MAX;
+			sch_ep->cs_count = sch_ep->num_budget_microframes;
+		}
+		if (ep_type == ISOC_IN_EP) {
+			/* at most need additional two CS. */
+			sch_ep->cs_count = DIV_ROUND_UP(
+				max_packet_size, FS_PAYLOAD_MAX) + 2;
+			sch_ep->num_budget_microframes = sch_ep->cs_count + 2;
+			sch_ep->bw_cost_per_microframe = FS_PAYLOAD_MAX;
+		}
+	}
+}
+
+/* Get maximum bandwidth when we schedule at offset slot. */
+static u32 get_max_bw(struct mu3h_sch_bw_info *sch_bw,
+	struct mu3h_sch_ep_info *sch_ep, u32 offset)
+{
+	u32 num_esit;
+	u32 max_bw = 0;
+	int i;
+	int j;
+
+	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
+	for (i = 0; i < num_esit; i++) {
+		u32 base = offset + i * sch_ep->esit;
+
+		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
+			if (sch_bw->bus_bw[base + j] > max_bw)
+				max_bw = sch_bw->bus_bw[base + j];
+		}
+	}
+	return max_bw;
+}
+
+static void update_bus_bw(struct mu3h_sch_bw_info *sch_bw,
+	struct mu3h_sch_ep_info *sch_ep, int bw_cost)
+{
+	u32 num_esit;
+	u32 base;
+	int i;
+	int j;
+
+	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
+	for (i = 0; i < num_esit; i++) {
+		base = sch_ep->offset + i * sch_ep->esit;
+		for (j = 0; j < sch_ep->num_budget_microframes; j++)
+			sch_bw->bus_bw[base + j] += bw_cost;
+	}
+}
+
+static int check_sch_bw(struct usb_device *udev,
+	struct mu3h_sch_bw_info *sch_bw, struct mu3h_sch_ep_info *sch_ep)
+{
+	u32 offset;
+	u32 esit;
+	u32 num_budget_microframes;
+	u32 min_bw;
+	u32 min_index;
+	u32 worst_bw;
+	u32 bw_boundary;
+
+	if (sch_ep->esit > XHCI_MTK_MAX_ESIT)
+		sch_ep->esit = XHCI_MTK_MAX_ESIT;
+
+	esit = sch_ep->esit;
+	num_budget_microframes = sch_ep->num_budget_microframes;
+
+	/*
+	 * Search through all possible schedule microframes.
+	 * and find a microframe where its worst bandwidth is minimum.
+	 */
+	min_bw = ~0;
+	min_index = 0;
+	for (offset = 0; offset < esit; offset++) {
+		if ((offset + num_budget_microframes) > sch_ep->esit)
+			break;
+
+		/*
+		 * usb_20 spec section11.18:
+		 * must never schedule Start-Split in Y6
+		 */
+		if (is_fs_or_ls(udev->speed) && (offset % 8 == 6))
+			continue;
+
+		worst_bw = get_max_bw(sch_bw, sch_ep, offset);
+		if (min_bw > worst_bw) {
+			min_bw = worst_bw;
+			min_index = offset;
+		}
+		if (min_bw == 0)
+			break;
+	}
+	sch_ep->offset = min_index;
+
+	bw_boundary = (udev->speed == USB_SPEED_SUPER)
+				? SS_BW_BOUNDARY : HS_BW_BOUNDARY;
+
+	/* check bandwidth */
+	if (min_bw + sch_ep->bw_cost_per_microframe > bw_boundary)
+		return -ERANGE;
+
+	/* update bus bandwidth info */
+	update_bus_bw(sch_bw, sch_ep, sch_ep->bw_cost_per_microframe);
+
+	return 0;
+}
+
+static bool need_bw_sch(struct usb_host_endpoint *ep,
+	enum usb_device_speed speed, int has_tt)
+{
+	/* only for periodic endpoints */
+	if (usb_endpoint_xfer_control(&ep->desc)
+		|| usb_endpoint_xfer_bulk(&ep->desc))
+		return false;
+
+	/*
+	 * for LS & FS periodic endpoints which its device don't attach
+	 * to TT are also ignored, root-hub will schedule them directly
+	 */
+	if (is_fs_or_ls(speed) && !has_tt)
+		return false;
+
+	return true;
+}
+
+int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk)
+{
+	struct mu3h_sch_bw_info *sch_array;
+	int num_usb_bus;
+	int i;
+
+	/* ss IN and OUT are separated */
+	num_usb_bus = mtk->num_u3_ports * 2 + mtk->num_u2_ports;
+
+	sch_array = kcalloc(num_usb_bus, sizeof(*sch_array), GFP_KERNEL);
+	if (sch_array == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < num_usb_bus; i++)
+		INIT_LIST_HEAD(&sch_array[i].bw_ep_list);
+
+	mtk->sch_array = sch_array;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xhci_mtk_sch_init);
+
+void xhci_mtk_sch_exit(struct xhci_hcd_mtk *mtk)
+{
+	kfree(mtk->sch_array);
+}
+EXPORT_SYMBOL_GPL(xhci_mtk_sch_exit);
+
+int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+		struct usb_host_endpoint *ep)
+{
+	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
+	struct xhci_hcd *xhci;
+	struct xhci_ep_ctx *ep_ctx;
+	struct xhci_slot_ctx *slot_ctx;
+	struct xhci_virt_device *virt_dev;
+	struct mu3h_sch_bw_info *sch_bw;
+	struct mu3h_sch_ep_info *sch_ep;
+	struct mu3h_sch_bw_info *sch_array;
+	unsigned int ep_index;
+	int bw_index;
+	int ret = 0;
+
+	xhci = hcd_to_xhci(hcd);
+	virt_dev = xhci->devs[udev->slot_id];
+	ep_index = xhci_get_endpoint_index(&ep->desc);
+	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+	ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
+	sch_array = mtk->sch_array;
+
+	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpkt:%d, dir:%d, ep:%p\n",
+		__func__, usb_endpoint_type(&ep->desc), udev->speed,
+		GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)),
+		usb_endpoint_dir_in(&ep->desc), ep);
+
+	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT))
+		return 0;
+
+	bw_index = get_bw_index(xhci, udev, ep);
+	sch_bw = &sch_array[bw_index];
+
+	sch_ep = kzalloc(sizeof(struct mu3h_sch_ep_info), GFP_NOIO);
+	if (!sch_ep)
+		return -ENOMEM;
+
+	setup_sch_info(udev, ep_ctx, sch_ep);
+
+	ret = check_sch_bw(udev, sch_bw, sch_ep);
+	if (ret) {
+		xhci_err(xhci, "Not enough bandwidth!\n");
+		kfree(sch_ep);
+		return -ENOSPC;
+	}
+
+	list_add_tail(&sch_ep->endpoint, &sch_bw->bw_ep_list);
+	sch_ep->ep = ep;
+
+	ep_ctx->reserved[0] |= cpu_to_le32(EP_BPKTS(sch_ep->pkts)
+		| EP_BCSCOUNT(sch_ep->cs_count) | EP_BBM(sch_ep->burst_mode));
+	ep_ctx->reserved[1] |= cpu_to_le32(EP_BOFFSET(sch_ep->offset)
+		| EP_BREPEAT(sch_ep->repeat));
+
+	xhci_dbg(xhci, " PKTS:%x, CSCOUNT:%x, BM:%x, OFFSET:%x, REPEAT:%x\n",
+			sch_ep->pkts, sch_ep->cs_count, sch_ep->burst_mode,
+			sch_ep->offset, sch_ep->repeat);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xhci_mtk_add_ep_quirk);
+
+void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+		struct usb_host_endpoint *ep)
+{
+	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
+	struct xhci_hcd *xhci;
+	struct xhci_slot_ctx *slot_ctx;
+	struct xhci_virt_device *virt_dev;
+	struct mu3h_sch_bw_info *sch_array;
+	struct mu3h_sch_bw_info *sch_bw;
+	struct mu3h_sch_ep_info *sch_ep;
+	int bw_index;
+
+	xhci = hcd_to_xhci(hcd);
+	virt_dev = xhci->devs[udev->slot_id];
+	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
+	sch_array = mtk->sch_array;
+
+	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpks:%d, dir:%d, ep:%p\n",
+		__func__, usb_endpoint_type(&ep->desc), udev->speed,
+		GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)),
+		usb_endpoint_dir_in(&ep->desc), ep);
+
+	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT))
+		return;
+
+	bw_index = get_bw_index(xhci, udev, ep);
+	sch_bw = &sch_array[bw_index];
+
+	list_for_each_entry(sch_ep, &sch_bw->bw_ep_list, endpoint) {
+		if (sch_ep->ep == ep) {
+			update_bus_bw(sch_bw, sch_ep,
+				-sch_ep->bw_cost_per_microframe);
+			list_del(&sch_ep->endpoint);
+			kfree(sch_ep);
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(xhci_mtk_drop_ep_quirk);
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
new file mode 100644
index 000000000000..c9ab6a44c34a
--- /dev/null
+++ b/drivers/usb/host/xhci-mtk.c
@@ -0,0 +1,763 @@
+/*
+ * MediaTek xHCI Host Controller Driver
+ *
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author:
+ *  Chunfeng Yun <chunfeng.yun@mediatek.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include "xhci.h"
+#include "xhci-mtk.h"
+
+/* ip_pw_ctrl0 register */
+#define CTRL0_IP_SW_RST	BIT(0)
+
+/* ip_pw_ctrl1 register */
+#define CTRL1_IP_HOST_PDN	BIT(0)
+
+/* ip_pw_ctrl2 register */
+#define CTRL2_IP_DEV_PDN	BIT(0)
+
+/* ip_pw_sts1 register */
+#define STS1_IP_SLEEP_STS	BIT(30)
+#define STS1_XHCI_RST		BIT(11)
+#define STS1_SYS125_RST	BIT(10)
+#define STS1_REF_RST		BIT(8)
+#define STS1_SYSPLL_STABLE	BIT(0)
+
+/* ip_xhci_cap register */
+#define CAP_U3_PORT_NUM(p)	((p) & 0xff)
+#define CAP_U2_PORT_NUM(p)	(((p) >> 8) & 0xff)
+
+/* u3_ctrl_p register */
+#define CTRL_U3_PORT_HOST_SEL	BIT(2)
+#define CTRL_U3_PORT_PDN	BIT(1)
+#define CTRL_U3_PORT_DIS	BIT(0)
+
+/* u2_ctrl_p register */
+#define CTRL_U2_PORT_HOST_SEL	BIT(2)
+#define CTRL_U2_PORT_PDN	BIT(1)
+#define CTRL_U2_PORT_DIS	BIT(0)
+
+/* u2_phy_pll register */
+#define CTRL_U2_FORCE_PLL_STB	BIT(28)
+
+#define PERI_WK_CTRL0		0x400
+#define UWK_CTR0_0P_LS_PE	BIT(8)  /* posedge */
+#define UWK_CTR0_0P_LS_NE	BIT(7)  /* negedge for 0p linestate*/
+#define UWK_CTL1_1P_LS_C(x)	(((x) & 0xf) << 1)
+#define UWK_CTL1_1P_LS_E	BIT(0)
+
+#define PERI_WK_CTRL1		0x404
+#define UWK_CTL1_IS_C(x)	(((x) & 0xf) << 26)
+#define UWK_CTL1_IS_E		BIT(25)
+#define UWK_CTL1_0P_LS_C(x)	(((x) & 0xf) << 21)
+#define UWK_CTL1_0P_LS_E	BIT(20)
+#define UWK_CTL1_IDDIG_C(x)	(((x) & 0xf) << 11)  /* cycle debounce */
+#define UWK_CTL1_IDDIG_E	BIT(10) /* enable debounce */
+#define UWK_CTL1_IDDIG_P	BIT(9)  /* polarity */
+#define UWK_CTL1_0P_LS_P	BIT(7)
+#define UWK_CTL1_IS_P		BIT(6)  /* polarity for ip sleep */
+
+enum ssusb_wakeup_src {
+	SSUSB_WK_IP_SLEEP = 1,
+	SSUSB_WK_LINE_STATE = 2,
+};
+
+static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
+{
+	struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
+	u32 value, check_val;
+	int ret;
+	int i;
+
+	/* power on host ip */
+	value = readl(&ippc->ip_pw_ctr1);
+	value &= ~CTRL1_IP_HOST_PDN;
+	writel(value, &ippc->ip_pw_ctr1);
+
+	/* power on and enable all u3 ports */
+	for (i = 0; i < mtk->num_u3_ports; i++) {
+		value = readl(&ippc->u3_ctrl_p[i]);
+		value &= ~(CTRL_U3_PORT_PDN | CTRL_U3_PORT_DIS);
+		value |= CTRL_U3_PORT_HOST_SEL;
+		writel(value, &ippc->u3_ctrl_p[i]);
+	}
+
+	/* power on and enable all u2 ports */
+	for (i = 0; i < mtk->num_u2_ports; i++) {
+		value = readl(&ippc->u2_ctrl_p[i]);
+		value &= ~(CTRL_U2_PORT_PDN | CTRL_U2_PORT_DIS);
+		value |= CTRL_U2_PORT_HOST_SEL;
+		writel(value, &ippc->u2_ctrl_p[i]);
+	}
+
+	/*
+	 * wait for clocks to be stable, and clock domains reset to
+	 * be inactive after power on and enable ports
+	 */
+	check_val = STS1_SYSPLL_STABLE | STS1_REF_RST |
+			STS1_SYS125_RST | STS1_XHCI_RST;
+
+	ret = readl_poll_timeout(&ippc->ip_pw_sts1, value,
+			  (check_val == (value & check_val)), 100, 20000);
+	if (ret) {
+		dev_err(mtk->dev, "clocks are not stable (0x%x)\n", value);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int xhci_mtk_host_disable(struct xhci_hcd_mtk *mtk)
+{
+	struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
+	u32 value;
+	int ret;
+	int i;
+
+	/* power down all u3 ports */
+	for (i = 0; i < mtk->num_u3_ports; i++) {
+		value = readl(&ippc->u3_ctrl_p[i]);
+		value |= CTRL_U3_PORT_PDN;
+		writel(value, &ippc->u3_ctrl_p[i]);
+	}
+
+	/* power down all u2 ports */
+	for (i = 0; i < mtk->num_u2_ports; i++) {
+		value = readl(&ippc->u2_ctrl_p[i]);
+		value |= CTRL_U2_PORT_PDN;
+		writel(value, &ippc->u2_ctrl_p[i]);
+	}
+
+	/* power down host ip */
+	value = readl(&ippc->ip_pw_ctr1);
+	value |= CTRL1_IP_HOST_PDN;
+	writel(value, &ippc->ip_pw_ctr1);
+
+	/* wait for host ip to sleep */
+	ret = readl_poll_timeout(&ippc->ip_pw_sts1, value,
+			  (value & STS1_IP_SLEEP_STS), 100, 100000);
+	if (ret) {
+		dev_err(mtk->dev, "ip sleep failed!!!\n");
+		return ret;
+	}
+	return 0;
+}
+
+static int xhci_mtk_ssusb_config(struct xhci_hcd_mtk *mtk)
+{
+	struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
+	u32 value;
+
+	/* reset whole ip */
+	value = readl(&ippc->ip_pw_ctr0);
+	value |= CTRL0_IP_SW_RST;
+	writel(value, &ippc->ip_pw_ctr0);
+	udelay(1);
+	value = readl(&ippc->ip_pw_ctr0);
+	value &= ~CTRL0_IP_SW_RST;
+	writel(value, &ippc->ip_pw_ctr0);
+
+	/*
+	 * device ip is default power-on in fact
+	 * power down device ip, otherwise ip-sleep will fail
+	 */
+	value = readl(&ippc->ip_pw_ctr2);
+	value |= CTRL2_IP_DEV_PDN;
+	writel(value, &ippc->ip_pw_ctr2);
+
+	value = readl(&ippc->ip_xhci_cap);
+	mtk->num_u3_ports = CAP_U3_PORT_NUM(value);
+	mtk->num_u2_ports = CAP_U2_PORT_NUM(value);
+	dev_dbg(mtk->dev, "%s u2p:%d, u3p:%d\n", __func__,
+			mtk->num_u2_ports, mtk->num_u3_ports);
+
+	return xhci_mtk_host_enable(mtk);
+}
+
+static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk)
+{
+	int ret;
+
+	ret = clk_prepare_enable(mtk->sys_clk);
+	if (ret) {
+		dev_err(mtk->dev, "failed to enable sys_clk\n");
+		goto sys_clk_err;
+	}
+
+	if (mtk->wakeup_src) {
+		ret = clk_prepare_enable(mtk->wk_deb_p0);
+		if (ret) {
+			dev_err(mtk->dev, "failed to enable wk_deb_p0\n");
+			goto usb_p0_err;
+		}
+
+		ret = clk_prepare_enable(mtk->wk_deb_p1);
+		if (ret) {
+			dev_err(mtk->dev, "failed to enable wk_deb_p1\n");
+			goto usb_p1_err;
+		}
+	}
+	return 0;
+
+usb_p1_err:
+	clk_disable_unprepare(mtk->wk_deb_p0);
+usb_p0_err:
+	clk_disable_unprepare(mtk->sys_clk);
+sys_clk_err:
+	return -EINVAL;
+}
+
+static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
+{
+	if (mtk->wakeup_src) {
+		clk_disable_unprepare(mtk->wk_deb_p1);
+		clk_disable_unprepare(mtk->wk_deb_p0);
+	}
+	clk_disable_unprepare(mtk->sys_clk);
+}
+
+/* only clocks can be turn off for ip-sleep wakeup mode */
+static void usb_wakeup_ip_sleep_en(struct xhci_hcd_mtk *mtk)
+{
+	u32 tmp;
+	struct regmap *pericfg = mtk->pericfg;
+
+	regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
+	tmp &= ~UWK_CTL1_IS_P;
+	tmp &= ~(UWK_CTL1_IS_C(0xf));
+	tmp |= UWK_CTL1_IS_C(0x8);
+	regmap_write(pericfg, PERI_WK_CTRL1, tmp);
+	regmap_write(pericfg, PERI_WK_CTRL1, tmp | UWK_CTL1_IS_E);
+
+	regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
+	dev_dbg(mtk->dev, "%s(): WK_CTRL1[P6,E25,C26:29]=%#x\n",
+		__func__, tmp);
+}
+
+static void usb_wakeup_ip_sleep_dis(struct xhci_hcd_mtk *mtk)
+{
+	u32 tmp;
+
+	regmap_read(mtk->pericfg, PERI_WK_CTRL1, &tmp);
+	tmp &= ~UWK_CTL1_IS_E;
+	regmap_write(mtk->pericfg, PERI_WK_CTRL1, tmp);
+}
+
+/*
+* for line-state wakeup mode, phy's power should not power-down
+* and only support cable plug in/out
+*/
+static void usb_wakeup_line_state_en(struct xhci_hcd_mtk *mtk)
+{
+	u32 tmp;
+	struct regmap *pericfg = mtk->pericfg;
+
+	/* line-state of u2-port0 */
+	regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
+	tmp &= ~UWK_CTL1_0P_LS_P;
+	tmp &= ~(UWK_CTL1_0P_LS_C(0xf));
+	tmp |= UWK_CTL1_0P_LS_C(0x8);
+	regmap_write(pericfg, PERI_WK_CTRL1, tmp);
+	regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
+	regmap_write(pericfg, PERI_WK_CTRL1, tmp | UWK_CTL1_0P_LS_E);
+
+	/* line-state of u2-port1 */
+	regmap_read(pericfg, PERI_WK_CTRL0, &tmp);
+	tmp &= ~(UWK_CTL1_1P_LS_C(0xf));
+	tmp |= UWK_CTL1_1P_LS_C(0x8);
+	regmap_write(pericfg, PERI_WK_CTRL0, tmp);
+	regmap_write(pericfg, PERI_WK_CTRL0, tmp | UWK_CTL1_1P_LS_E);
+}
+
+static void usb_wakeup_line_state_dis(struct xhci_hcd_mtk *mtk)
+{
+	u32 tmp;
+	struct regmap *pericfg = mtk->pericfg;
+
+	/* line-state of u2-port0 */
+	regmap_read(pericfg, PERI_WK_CTRL1, &tmp);
+	tmp &= ~UWK_CTL1_0P_LS_E;
+	regmap_write(pericfg, PERI_WK_CTRL1, tmp);
+
+	/* line-state of u2-port1 */
+	regmap_read(pericfg, PERI_WK_CTRL0, &tmp);
+	tmp &= ~UWK_CTL1_1P_LS_E;
+	regmap_write(pericfg, PERI_WK_CTRL0, tmp);
+}
+
+static void usb_wakeup_enable(struct xhci_hcd_mtk *mtk)
+{
+	if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
+		usb_wakeup_ip_sleep_en(mtk);
+	else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
+		usb_wakeup_line_state_en(mtk);
+}
+
+static void usb_wakeup_disable(struct xhci_hcd_mtk *mtk)
+{
+	if (mtk->wakeup_src == SSUSB_WK_IP_SLEEP)
+		usb_wakeup_ip_sleep_dis(mtk);
+	else if (mtk->wakeup_src == SSUSB_WK_LINE_STATE)
+		usb_wakeup_line_state_dis(mtk);
+}
+
+static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
+				struct device_node *dn)
+{
+	struct device *dev = mtk->dev;
+
+	/*
+	* wakeup function is optional, so it is not an error if this property
+	* does not exist, and in such case, no need to get relative
+	* properties anymore.
+	*/
+	of_property_read_u32(dn, "mediatek,wakeup-src", &mtk->wakeup_src);
+	if (!mtk->wakeup_src)
+		return 0;
+
+	mtk->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
+	if (IS_ERR(mtk->wk_deb_p0)) {
+		dev_err(dev, "fail to get wakeup_deb_p0\n");
+		return PTR_ERR(mtk->wk_deb_p0);
+	}
+
+	mtk->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
+	if (IS_ERR(mtk->wk_deb_p1)) {
+		dev_err(dev, "fail to get wakeup_deb_p1\n");
+		return PTR_ERR(mtk->wk_deb_p1);
+	}
+
+	mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
+						"mediatek,syscon-wakeup");
+	if (IS_ERR(mtk->pericfg)) {
+		dev_err(dev, "fail to get pericfg regs\n");
+		return PTR_ERR(mtk->pericfg);
+	}
+
+	return 0;
+}
+
+static int xhci_mtk_setup(struct usb_hcd *hcd);
+static const struct xhci_driver_overrides xhci_mtk_overrides __initconst = {
+	.extra_priv_size = sizeof(struct xhci_hcd),
+	.reset = xhci_mtk_setup,
+};
+
+static struct hc_driver __read_mostly xhci_mtk_hc_driver;
+
+static int xhci_mtk_phy_init(struct xhci_hcd_mtk *mtk)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < mtk->num_phys; i++) {
+		ret = phy_init(mtk->phys[i]);
+		if (ret)
+			goto exit_phy;
+	}
+	return 0;
+
+exit_phy:
+	for (; i > 0; i--)
+		phy_exit(mtk->phys[i - 1]);
+
+	return ret;
+}
+
+static int xhci_mtk_phy_exit(struct xhci_hcd_mtk *mtk)
+{
+	int i;
+
+	for (i = 0; i < mtk->num_phys; i++)
+		phy_exit(mtk->phys[i]);
+
+	return 0;
+}
+
+static int xhci_mtk_phy_power_on(struct xhci_hcd_mtk *mtk)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < mtk->num_phys; i++) {
+		ret = phy_power_on(mtk->phys[i]);
+		if (ret)
+			goto power_off_phy;
+	}
+	return 0;
+
+power_off_phy:
+	for (; i > 0; i--)
+		phy_power_off(mtk->phys[i - 1]);
+
+	return ret;
+}
+
+static void xhci_mtk_phy_power_off(struct xhci_hcd_mtk *mtk)
+{
+	unsigned int i;
+
+	for (i = 0; i < mtk->num_phys; i++)
+		phy_power_off(mtk->phys[i]);
+}
+
+static int xhci_mtk_ldos_enable(struct xhci_hcd_mtk *mtk)
+{
+	int ret;
+
+	ret = regulator_enable(mtk->vbus);
+	if (ret) {
+		dev_err(mtk->dev, "failed to enable vbus\n");
+		return ret;
+	}
+
+	ret = regulator_enable(mtk->vusb33);
+	if (ret) {
+		dev_err(mtk->dev, "failed to enable vusb33\n");
+		regulator_disable(mtk->vbus);
+		return ret;
+	}
+	return 0;
+}
+
+static void xhci_mtk_ldos_disable(struct xhci_hcd_mtk *mtk)
+{
+	regulator_disable(mtk->vbus);
+	regulator_disable(mtk->vusb33);
+}
+
+static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
+{
+	struct usb_hcd *hcd = xhci_to_hcd(xhci);
+	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
+
+	/*
+	 * As of now platform drivers don't provide MSI support so we ensure
+	 * here that the generic code does not try to make a pci_dev from our
+	 * dev struct in order to setup MSI
+	 */
+	xhci->quirks |= XHCI_PLAT;
+	xhci->quirks |= XHCI_MTK_HOST;
+	/*
+	 * MTK host controller gives a spurious successful event after a
+	 * short transfer. Ignore it.
+	 */
+	xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
+	if (mtk->lpm_support)
+		xhci->quirks |= XHCI_LPM_SUPPORT;
+}
+
+/* called during probe() after chip reset completes */
+static int xhci_mtk_setup(struct usb_hcd *hcd)
+{
+	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
+	int ret;
+
+	if (usb_hcd_is_primary_hcd(hcd)) {
+		ret = xhci_mtk_ssusb_config(mtk);
+		if (ret)
+			return ret;
+		ret = xhci_mtk_sch_init(mtk);
+		if (ret)
+			return ret;
+	}
+
+	return xhci_gen_setup(hcd, xhci_mtk_quirks);
+}
+
+static int xhci_mtk_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct xhci_hcd_mtk *mtk;
+	const struct hc_driver *driver;
+	struct xhci_hcd *xhci;
+	struct resource *res;
+	struct usb_hcd *hcd;
+	struct phy *phy;
+	int phy_num;
+	int ret = -ENODEV;
+	int irq;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	driver = &xhci_mtk_hc_driver;
+	mtk = devm_kzalloc(dev, sizeof(*mtk), GFP_KERNEL);
+	if (!mtk)
+		return -ENOMEM;
+
+	mtk->dev = dev;
+	mtk->vbus = devm_regulator_get(dev, "vbus");
+	if (IS_ERR(mtk->vbus)) {
+		dev_err(dev, "fail to get vbus\n");
+		return PTR_ERR(mtk->vbus);
+	}
+
+	mtk->vusb33 = devm_regulator_get(dev, "vusb33");
+	if (IS_ERR(mtk->vusb33)) {
+		dev_err(dev, "fail to get vusb33\n");
+		return PTR_ERR(mtk->vusb33);
+	}
+
+	mtk->sys_clk = devm_clk_get(dev, "sys_ck");
+	if (IS_ERR(mtk->sys_clk)) {
+		dev_err(dev, "fail to get sys_ck\n");
+		return PTR_ERR(mtk->sys_clk);
+	}
+
+	mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+
+	ret = usb_wakeup_of_property_parse(mtk, node);
+	if (ret)
+		return ret;
+
+	mtk->num_phys = of_count_phandle_with_args(node,
+			"phys", "#phy-cells");
+	if (mtk->num_phys > 0) {
+		mtk->phys = devm_kcalloc(dev, mtk->num_phys,
+					sizeof(*mtk->phys), GFP_KERNEL);
+		if (!mtk->phys)
+			return -ENOMEM;
+	} else {
+		mtk->num_phys = 0;
+	}
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+	device_enable_async_suspend(dev);
+
+	ret = xhci_mtk_ldos_enable(mtk);
+	if (ret)
+		goto disable_pm;
+
+	ret = xhci_mtk_clks_enable(mtk);
+	if (ret)
+		goto disable_ldos;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		goto disable_clk;
+
+	/* Initialize dma_mask and coherent_dma_mask to 32-bits */
+	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto disable_clk;
+
+	if (!dev->dma_mask)
+		dev->dma_mask = &dev->coherent_dma_mask;
+	else
+		dma_set_mask(dev, DMA_BIT_MASK(32));
+
+	hcd = usb_create_hcd(driver, dev, dev_name(dev));
+	if (!hcd) {
+		ret = -ENOMEM;
+		goto disable_clk;
+	}
+
+	/*
+	 * USB 2.0 roothub is stored in the platform_device.
+	 * Swap it with mtk HCD.
+	 */
+	mtk->hcd = platform_get_drvdata(pdev);
+	platform_set_drvdata(pdev, mtk);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hcd->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
+		goto put_usb2_hcd;
+	}
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	mtk->ippc_regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(mtk->ippc_regs)) {
+		ret = PTR_ERR(mtk->ippc_regs);
+		goto put_usb2_hcd;
+	}
+
+	for (phy_num = 0; phy_num < mtk->num_phys; phy_num++) {
+		phy = devm_of_phy_get_by_index(dev, node, phy_num);
+		if (IS_ERR(phy)) {
+			ret = PTR_ERR(phy);
+			goto put_usb2_hcd;
+		}
+		mtk->phys[phy_num] = phy;
+	}
+
+	ret = xhci_mtk_phy_init(mtk);
+	if (ret)
+		goto put_usb2_hcd;
+
+	ret = xhci_mtk_phy_power_on(mtk);
+	if (ret)
+		goto exit_phys;
+
+	device_init_wakeup(dev, true);
+
+	xhci = hcd_to_xhci(hcd);
+	xhci->main_hcd = hcd;
+	xhci->shared_hcd = usb_create_shared_hcd(driver, dev,
+			dev_name(dev), hcd);
+	if (!xhci->shared_hcd) {
+		ret = -ENOMEM;
+		goto power_off_phys;
+	}
+
+	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+		xhci->shared_hcd->can_do_streams = 1;
+
+	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (ret)
+		goto put_usb3_hcd;
+
+	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+	if (ret)
+		goto dealloc_usb2_hcd;
+
+	return 0;
+
+dealloc_usb2_hcd:
+	usb_remove_hcd(hcd);
+
+put_usb3_hcd:
+	xhci_mtk_sch_exit(mtk);
+	usb_put_hcd(xhci->shared_hcd);
+
+power_off_phys:
+	xhci_mtk_phy_power_off(mtk);
+	device_init_wakeup(dev, false);
+
+exit_phys:
+	xhci_mtk_phy_exit(mtk);
+
+put_usb2_hcd:
+	usb_put_hcd(hcd);
+
+disable_clk:
+	xhci_mtk_clks_disable(mtk);
+
+disable_ldos:
+	xhci_mtk_ldos_disable(mtk);
+
+disable_pm:
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static int xhci_mtk_remove(struct platform_device *dev)
+{
+	struct xhci_hcd_mtk *mtk = platform_get_drvdata(dev);
+	struct usb_hcd	*hcd = mtk->hcd;
+	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+
+	usb_remove_hcd(xhci->shared_hcd);
+	xhci_mtk_phy_power_off(mtk);
+	xhci_mtk_phy_exit(mtk);
+	device_init_wakeup(&dev->dev, false);
+
+	usb_remove_hcd(hcd);
+	usb_put_hcd(xhci->shared_hcd);
+	usb_put_hcd(hcd);
+	xhci_mtk_sch_exit(mtk);
+	xhci_mtk_clks_disable(mtk);
+	xhci_mtk_ldos_disable(mtk);
+	pm_runtime_put_sync(&dev->dev);
+	pm_runtime_disable(&dev->dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int xhci_mtk_suspend(struct device *dev)
+{
+	struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
+
+	xhci_mtk_host_disable(mtk);
+	xhci_mtk_phy_power_off(mtk);
+	xhci_mtk_clks_disable(mtk);
+	usb_wakeup_enable(mtk);
+	return 0;
+}
+
+static int xhci_mtk_resume(struct device *dev)
+{
+	struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
+
+	usb_wakeup_disable(mtk);
+	xhci_mtk_clks_enable(mtk);
+	xhci_mtk_phy_power_on(mtk);
+	xhci_mtk_host_enable(mtk);
+	return 0;
+}
+
+static const struct dev_pm_ops xhci_mtk_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(xhci_mtk_suspend, xhci_mtk_resume)
+};
+#define DEV_PM_OPS	(&xhci_mtk_pm_ops)
+#else
+#define DEV_PM_OPS	NULL
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_OF
+static const struct of_device_id mtk_xhci_of_match[] = {
+	{ .compatible = "mediatek,mt8173-xhci"},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mtk_xhci_of_match);
+#endif
+
+static struct platform_driver mtk_xhci_driver = {
+	.probe	= xhci_mtk_probe,
+	.remove	= xhci_mtk_remove,
+	.driver	= {
+		.name = "xhci-mtk",
+		.pm = DEV_PM_OPS,
+		.of_match_table = of_match_ptr(mtk_xhci_of_match),
+	},
+};
+MODULE_ALIAS("platform:xhci-mtk");
+
+static int __init xhci_mtk_init(void)
+{
+	xhci_init_driver(&xhci_mtk_hc_driver, &xhci_mtk_overrides);
+	return platform_driver_register(&mtk_xhci_driver);
+}
+module_init(xhci_mtk_init);
+
+static void __exit xhci_mtk_exit(void)
+{
+	platform_driver_unregister(&mtk_xhci_driver);
+}
+module_exit(xhci_mtk_exit);
+
+MODULE_AUTHOR("Chunfeng Yun <chunfeng.yun@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek xHCI Host Controller Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
new file mode 100644
index 000000000000..7da677c79ea8
--- /dev/null
+++ b/drivers/usb/host/xhci-mtk.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author:
+ *  Zhigang.Wei <zhigang.wei@mediatek.com>
+ *  Chunfeng.Yun <chunfeng.yun@mediatek.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _XHCI_MTK_H_
+#define _XHCI_MTK_H_
+
+#include "xhci.h"
+
+/**
+ * To simplify scheduler algorithm, set a upper limit for ESIT,
+ * if a synchromous ep's ESIT is larger than @XHCI_MTK_MAX_ESIT,
+ * round down to the limit value, that means allocating more
+ * bandwidth to it.
+ */
+#define XHCI_MTK_MAX_ESIT	64
+
+/**
+ * struct mu3h_sch_bw_info: schedule information for bandwidth domain
+ *
+ * @bus_bw: array to keep track of bandwidth already used at each uframes
+ * @bw_ep_list: eps in the bandwidth domain
+ *
+ * treat a HS root port as a bandwidth domain, but treat a SS root port as
+ * two bandwidth domains, one for IN eps and another for OUT eps.
+ */
+struct mu3h_sch_bw_info {
+	u32 bus_bw[XHCI_MTK_MAX_ESIT];
+	struct list_head bw_ep_list;
+};
+
+/**
+ * struct mu3h_sch_ep_info: schedule information for endpoint
+ *
+ * @esit: unit is 125us, equal to 2 << Interval field in ep-context
+ * @num_budget_microframes: number of continuous uframes
+ *		(@repeat==1) scheduled within the interval
+ * @bw_cost_per_microframe: bandwidth cost per microframe
+ * @endpoint: linked into bandwidth domain which it belongs to
+ * @ep: address of usb_host_endpoint struct
+ * @offset: which uframe of the interval that transfer should be
+ *		scheduled first time within the interval
+ * @repeat: the time gap between two uframes that transfers are
+ *		scheduled within a interval. in the simple algorithm, only
+ *		assign 0 or 1 to it; 0 means using only one uframe in a
+ *		interval, and 1 means using @num_budget_microframes
+ *		continuous uframes
+ * @pkts: number of packets to be transferred in the scheduled uframes
+ * @cs_count: number of CS that host will trigger
+ * @burst_mode: burst mode for scheduling. 0: normal burst mode,
+ *		distribute the bMaxBurst+1 packets for a single burst
+ *		according to @pkts and @repeat, repeate the burst multiple
+ *		times; 1: distribute the (bMaxBurst+1)*(Mult+1) packets
+ *		according to @pkts and @repeat. normal mode is used by
+ *		default
+ */
+struct mu3h_sch_ep_info {
+	u32 esit;
+	u32 num_budget_microframes;
+	u32 bw_cost_per_microframe;
+	struct list_head endpoint;
+	void *ep;
+	/*
+	 * mtk xHCI scheduling information put into reserved DWs
+	 * in ep context
+	 */
+	u32 offset;
+	u32 repeat;
+	u32 pkts;
+	u32 cs_count;
+	u32 burst_mode;
+};
+
+#define MU3C_U3_PORT_MAX 4
+#define MU3C_U2_PORT_MAX 5
+
+/**
+ * struct mu3c_ippc_regs: MTK ssusb ip port control registers
+ * @ip_pw_ctr0~3: ip power and clock control registers
+ * @ip_pw_sts1~2: ip power and clock status registers
+ * @ip_xhci_cap: ip xHCI capability register
+ * @u3_ctrl_p[x]: ip usb3 port x control register, only low 4bytes are used
+ * @u2_ctrl_p[x]: ip usb2 port x control register, only low 4bytes are used
+ * @u2_phy_pll: usb2 phy pll control register
+ */
+struct mu3c_ippc_regs {
+	__le32 ip_pw_ctr0;
+	__le32 ip_pw_ctr1;
+	__le32 ip_pw_ctr2;
+	__le32 ip_pw_ctr3;
+	__le32 ip_pw_sts1;
+	__le32 ip_pw_sts2;
+	__le32 reserved0[3];
+	__le32 ip_xhci_cap;
+	__le32 reserved1[2];
+	__le64 u3_ctrl_p[MU3C_U3_PORT_MAX];
+	__le64 u2_ctrl_p[MU3C_U2_PORT_MAX];
+	__le32 reserved2;
+	__le32 u2_phy_pll;
+	__le32 reserved3[33]; /* 0x80 ~ 0xff */
+};
+
+struct xhci_hcd_mtk {
+	struct device *dev;
+	struct usb_hcd *hcd;
+	struct mu3h_sch_bw_info *sch_array;
+	struct mu3c_ippc_regs __iomem *ippc_regs;
+	int num_u2_ports;
+	int num_u3_ports;
+	struct regulator *vusb33;
+	struct regulator *vbus;
+	struct clk *sys_clk;	/* sys and mac clock */
+	struct clk *wk_deb_p0;	/* port0's wakeup debounce clock */
+	struct clk *wk_deb_p1;
+	struct regmap *pericfg;
+	struct phy **phys;
+	int num_phys;
+	int wakeup_src;
+	bool lpm_support;
+};
+
+static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd)
+{
+	return dev_get_drvdata(hcd->self.controller);
+}
+
+#if IS_ENABLED(CONFIG_USB_XHCI_MTK)
+int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk);
+void xhci_mtk_sch_exit(struct xhci_hcd_mtk *mtk);
+int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+		struct usb_host_endpoint *ep);
+void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+		struct usb_host_endpoint *ep);
+
+#else
+static inline int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd,
+	struct usb_device *udev, struct usb_host_endpoint *ep)
+{
+	return 0;
+}
+
+static inline void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd,
+	struct usb_device *udev, struct usb_host_endpoint *ep)
+{
+}
+
+#endif
+
+#endif		/* _XHCI_MTK_H_ */
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c62109091d12..58c43ed7ff3b 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -53,7 +53,6 @@ static struct hc_driver __read_mostly xhci_pci_hc_driver;
 static int xhci_pci_setup(struct usb_hcd *hcd);
 
 static const struct xhci_driver_overrides xhci_pci_overrides __initconst = {
-	.extra_priv_size = sizeof(struct xhci_hcd),
 	.reset = xhci_pci_setup,
 };
 
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 05647e6753cd..770b6b088797 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -22,6 +22,7 @@
 #include <linux/acpi.h>
 
 #include "xhci.h"
+#include "xhci-plat.h"
 #include "xhci-mvebu.h"
 #include "xhci-rcar.h"
 
@@ -31,7 +32,7 @@ static int xhci_plat_setup(struct usb_hcd *hcd);
 static int xhci_plat_start(struct usb_hcd *hcd);
 
 static const struct xhci_driver_overrides xhci_plat_overrides __initconst = {
-	.extra_priv_size = sizeof(struct xhci_hcd),
+	.extra_priv_size = sizeof(struct xhci_plat_priv),
 	.reset = xhci_plat_setup,
 	.start = xhci_plat_start,
 };
@@ -49,11 +50,10 @@ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
 /* called during probe() after chip reset completes */
 static int xhci_plat_setup(struct usb_hcd *hcd)
 {
-	struct device_node *of_node = hcd->self.controller->of_node;
 	int ret;
 
-	if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
-	    of_device_is_compatible(of_node, "renesas,xhci-r8a7791")) {
+	if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2) ||
+	    xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3)) {
 		ret = xhci_rcar_init_quirk(hcd);
 		if (ret)
 			return ret;
@@ -64,19 +64,62 @@ static int xhci_plat_setup(struct usb_hcd *hcd)
 
 static int xhci_plat_start(struct usb_hcd *hcd)
 {
-	struct device_node *of_node = hcd->self.controller->of_node;
-
-	if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") ||
-	    of_device_is_compatible(of_node, "renesas,xhci-r8a7791"))
+	if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2) ||
+	    xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3))
 		xhci_rcar_start(hcd);
 
 	return xhci_run(hcd);
 }
 
+#ifdef CONFIG_OF
+static const struct xhci_plat_priv xhci_plat_marvell_armada = {
+	.type = XHCI_PLAT_TYPE_MARVELL_ARMADA,
+};
+
+static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
+	.type = XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2,
+	.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1,
+};
+
+static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
+	.type = XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3,
+	.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V2,
+};
+
+static const struct of_device_id usb_xhci_of_match[] = {
+	{
+		.compatible = "generic-xhci",
+	}, {
+		.compatible = "xhci-platform",
+	}, {
+		.compatible = "marvell,armada-375-xhci",
+		.data = &xhci_plat_marvell_armada,
+	}, {
+		.compatible = "marvell,armada-380-xhci",
+		.data = &xhci_plat_marvell_armada,
+	}, {
+		.compatible = "renesas,xhci-r8a7790",
+		.data = &xhci_plat_renesas_rcar_gen2,
+	}, {
+		.compatible = "renesas,xhci-r8a7791",
+		.data = &xhci_plat_renesas_rcar_gen2,
+	}, {
+		.compatible = "renesas,xhci-r8a7793",
+		.data = &xhci_plat_renesas_rcar_gen2,
+	}, {
+		.compatible = "renesas,xhci-r8a7795",
+		.data = &xhci_plat_renesas_rcar_gen3,
+	}, {
+	},
+};
+MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
+#endif
+
 static int xhci_plat_probe(struct platform_device *pdev)
 {
 	struct device_node	*node = pdev->dev.of_node;
 	struct usb_xhci_pdata	*pdata = dev_get_platdata(&pdev->dev);
+	const struct of_device_id *match;
 	const struct hc_driver	*driver;
 	struct xhci_hcd		*xhci;
 	struct resource         *res;
@@ -134,10 +177,17 @@ static int xhci_plat_probe(struct platform_device *pdev)
 			goto put_hcd;
 	}
 
-	if (of_device_is_compatible(pdev->dev.of_node,
-				    "marvell,armada-375-xhci") ||
-	    of_device_is_compatible(pdev->dev.of_node,
-				    "marvell,armada-380-xhci")) {
+	xhci = hcd_to_xhci(hcd);
+	match = of_match_node(usb_xhci_of_match, node);
+	if (match) {
+		const struct xhci_plat_priv *priv_match = match->data;
+		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+		/* Just copy data for now */
+		*priv = *priv_match;
+	}
+
+	if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_MARVELL_ARMADA)) {
 		ret = xhci_mvebu_mbus_init_quirk(pdev);
 		if (ret)
 			goto disable_clk;
@@ -145,7 +195,6 @@ static int xhci_plat_probe(struct platform_device *pdev)
 
 	device_wakeup_enable(hcd->self.controller);
 
-	xhci = hcd_to_xhci(hcd);
 	xhci->clk = clk;
 	xhci->main_hcd = hcd;
 	xhci->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev,
@@ -256,19 +305,6 @@ static const struct dev_pm_ops xhci_plat_pm_ops = {
 #define DEV_PM_OPS	NULL
 #endif /* CONFIG_PM */
 
-#ifdef CONFIG_OF
-static const struct of_device_id usb_xhci_of_match[] = {
-	{ .compatible = "generic-xhci" },
-	{ .compatible = "xhci-platform" },
-	{ .compatible = "marvell,armada-375-xhci"},
-	{ .compatible = "marvell,armada-380-xhci"},
-	{ .compatible = "renesas,xhci-r8a7790"},
-	{ .compatible = "renesas,xhci-r8a7791"},
-	{ },
-};
-MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
-#endif
-
 static const struct acpi_device_id usb_xhci_acpi_match[] = {
 	/* XHCI-compliant USB Controller */
 	{ "PNP0D10", },
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
new file mode 100644
index 000000000000..5a2e2e3936c4
--- /dev/null
+++ b/drivers/usb/host/xhci-plat.h
@@ -0,0 +1,39 @@
+/*
+ * xhci-plat.h - xHCI host controller driver platform Bus Glue.
+ *
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _XHCI_PLAT_H
+#define _XHCI_PLAT_H
+
+#include "xhci.h"	/* for hcd_to_xhci() */
+
+enum xhci_plat_type {
+	XHCI_PLAT_TYPE_MARVELL_ARMADA,
+	XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2,
+	XHCI_PLAT_TYPE_RENESAS_RCAR_GEN3,
+};
+
+struct xhci_plat_priv {
+	enum xhci_plat_type type;
+	const char *firmware_name;
+};
+
+#define hcd_to_xhci_priv(h) ((struct xhci_plat_priv *)hcd_to_xhci(h)->priv)
+
+static inline bool xhci_plat_type_is(struct usb_hcd *hcd,
+				     enum xhci_plat_type type)
+{
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+	if (priv && priv->type == type)
+		return true;
+	else
+		return false;
+}
+#endif	/* _XHCI_PLAT_H */
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index ff0d1b44ea58..623100e9385e 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -14,10 +14,17 @@
 #include <linux/usb/phy.h>
 
 #include "xhci.h"
+#include "xhci-plat.h"
 #include "xhci-rcar.h"
 
-#define FIRMWARE_NAME		"r8a779x_usb3_v1.dlmem"
-MODULE_FIRMWARE(FIRMWARE_NAME);
+/*
+* - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes
+*   performance degradation. So, this driver continues to use the V1 if R-Car
+*   Gen2.
+* - The V1 firmware is impossible to use on R-Car Gen3.
+*/
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V1);
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2);
 
 /*** Register Offset ***/
 #define RCAR_USB3_INT_ENA	0x224	/* Interrupt Enable */
@@ -56,6 +63,19 @@ MODULE_FIRMWARE(FIRMWARE_NAME);
 #define RCAR_USB3_RX_POL_VAL	BIT(21)
 #define RCAR_USB3_TX_POL_VAL	BIT(4)
 
+static void xhci_rcar_start_gen2(struct usb_hcd *hcd)
+{
+	/* LCLK Select */
+	writel(RCAR_USB3_LCLK_ENA_VAL, hcd->regs + RCAR_USB3_LCLK);
+	/* USB3.0 Configuration */
+	writel(RCAR_USB3_CONF1_VAL, hcd->regs + RCAR_USB3_CONF1);
+	writel(RCAR_USB3_CONF2_VAL, hcd->regs + RCAR_USB3_CONF2);
+	writel(RCAR_USB3_CONF3_VAL, hcd->regs + RCAR_USB3_CONF3);
+	/* USB3.0 Polarity */
+	writel(RCAR_USB3_RX_POL_VAL, hcd->regs + RCAR_USB3_RX_POL);
+	writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL);
+}
+
 void xhci_rcar_start(struct usb_hcd *hcd)
 {
 	u32 temp;
@@ -65,27 +85,23 @@ void xhci_rcar_start(struct usb_hcd *hcd)
 		temp = readl(hcd->regs + RCAR_USB3_INT_ENA);
 		temp |= RCAR_USB3_INT_ENA_VAL;
 		writel(temp, hcd->regs + RCAR_USB3_INT_ENA);
-		/* LCLK Select */
-		writel(RCAR_USB3_LCLK_ENA_VAL, hcd->regs + RCAR_USB3_LCLK);
-		/* USB3.0 Configuration */
-		writel(RCAR_USB3_CONF1_VAL, hcd->regs + RCAR_USB3_CONF1);
-		writel(RCAR_USB3_CONF2_VAL, hcd->regs + RCAR_USB3_CONF2);
-		writel(RCAR_USB3_CONF3_VAL, hcd->regs + RCAR_USB3_CONF3);
-		/* USB3.0 Polarity */
-		writel(RCAR_USB3_RX_POL_VAL, hcd->regs + RCAR_USB3_RX_POL);
-		writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL);
+		if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2))
+			xhci_rcar_start_gen2(hcd);
 	}
 }
 
-static int xhci_rcar_download_firmware(struct device *dev, void __iomem *regs)
+static int xhci_rcar_download_firmware(struct usb_hcd *hcd)
 {
+	struct device *dev = hcd->self.controller;
+	void __iomem *regs = hcd->regs;
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
 	const struct firmware *fw;
 	int retval, index, j, time;
 	int timeout = 10000;
 	u32 data, val, temp;
 
 	/* request R-Car USB3.0 firmware */
-	retval = request_firmware(&fw, FIRMWARE_NAME, dev);
+	retval = request_firmware(&fw, priv->firmware_name, dev);
 	if (retval)
 		return retval;
 
@@ -144,5 +160,5 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd)
 	if (!hcd->regs)
 		return 0;
 
-	return xhci_rcar_download_firmware(hcd->self.controller, hcd->regs);
+	return xhci_rcar_download_firmware(hcd);
 }
diff --git a/drivers/usb/host/xhci-rcar.h b/drivers/usb/host/xhci-rcar.h
index 58501256715d..2941a25cfe98 100644
--- a/drivers/usb/host/xhci-rcar.h
+++ b/drivers/usb/host/xhci-rcar.h
@@ -11,6 +11,9 @@
 #ifndef _XHCI_RCAR_H
 #define _XHCI_RCAR_H
 
+#define XHCI_RCAR_FIRMWARE_NAME_V1	"r8a779x_usb3_v1.dlmem"
+#define XHCI_RCAR_FIRMWARE_NAME_V2	"r8a779x_usb3_v2.dlmem"
+
 #if IS_ENABLED(CONFIG_USB_XHCI_RCAR)
 void xhci_rcar_start(struct usb_hcd *hcd);
 int xhci_rcar_init_quirk(struct usb_hcd *hcd);
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index eeaa6c6bd540..f1c21c40b4a6 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -68,6 +68,7 @@
 #include <linux/slab.h>
 #include "xhci.h"
 #include "xhci-trace.h"
+#include "xhci-mtk.h"
 
 /*
  * Returns zero if the TRB isn't in this segment, otherwise it returns the DMA
@@ -3075,17 +3076,22 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
 {
 	u32 maxp, total_packet_count;
 
-	if (xhci->hci_version < 0x100)
+	/* MTK xHCI is mostly 0.97 but contains some features from 1.0 */
+	if (xhci->hci_version < 0x100 && !(xhci->quirks & XHCI_MTK_HOST))
 		return ((td_total_len - transferred) >> 10);
 
-	maxp = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
-	total_packet_count = DIV_ROUND_UP(td_total_len, maxp);
-
 	/* One TRB with a zero-length data packet. */
 	if (num_trbs_left == 0 || (transferred == 0 && trb_buff_len == 0) ||
 	    trb_buff_len == td_total_len)
 		return 0;
 
+	/* for MTK xHCI, TD size doesn't include this TRB */
+	if (xhci->quirks & XHCI_MTK_HOST)
+		trb_buff_len = 0;
+
+	maxp = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
+	total_packet_count = DIV_ROUND_UP(td_total_len, maxp);
+
 	/* Queueing functions don't count the current TRB into transferred */
 	return (total_packet_count - ((transferred + trb_buff_len) / maxp));
 }
@@ -3473,7 +3479,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		field |= 0x1;
 
 	/* xHCI 1.0/1.1 6.4.1.2.1: Transfer Type field */
-	if (xhci->hci_version >= 0x100) {
+	if ((xhci->hci_version >= 0x100) || (xhci->quirks & XHCI_MTK_HOST)) {
 		if (urb->transfer_buffer_length > 0) {
 			if (setup->bRequestType & USB_DIR_IN)
 				field |= TRB_TX_TYPE(TRB_DATA_IN);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 3f912705dcef..26a44c0e969e 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -31,6 +31,7 @@
 
 #include "xhci.h"
 #include "xhci-trace.h"
+#include "xhci-mtk.h"
 
 #define DRIVER_AUTHOR "Sarah Sharp"
 #define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver"
@@ -634,7 +635,11 @@ int xhci_run(struct usb_hcd *hcd)
 			"// Set the interrupt modulation register");
 	temp = readl(&xhci->ir_set->irq_control);
 	temp &= ~ER_IRQ_INTERVAL_MASK;
-	temp |= (u32) 160;
+	/*
+	 * the increment interval is 8 times as much as that defined
+	 * in xHCI spec on MTK's controller
+	 */
+	temp |= (u32) ((xhci->quirks & XHCI_MTK_HOST) ? 20 : 160);
 	writel(temp, &xhci->ir_set->irq_control);
 
 	/* Set the HCD state before we enable the irqs */
@@ -1698,6 +1703,9 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 
 	xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
 
+	if (xhci->quirks & XHCI_MTK_HOST)
+		xhci_mtk_drop_ep_quirk(hcd, udev, ep);
+
 	xhci_dbg(xhci, "drop ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x\n",
 			(unsigned int) ep->desc.bEndpointAddress,
 			udev->slot_id,
@@ -1793,6 +1801,15 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 		return -ENOMEM;
 	}
 
+	if (xhci->quirks & XHCI_MTK_HOST) {
+		ret = xhci_mtk_add_ep_quirk(hcd, udev, ep);
+		if (ret < 0) {
+			xhci_free_or_cache_endpoint_ring(xhci,
+				virt_dev, ep_index);
+			return ret;
+		}
+	}
+
 	ctrl_ctx->add_flags |= cpu_to_le32(added_ctxs);
 	new_add_flags = le32_to_cpu(ctrl_ctx->add_flags);
 
@@ -4960,7 +4977,7 @@ EXPORT_SYMBOL_GPL(xhci_gen_setup);
 static const struct hc_driver xhci_hc_driver = {
 	.description =		"xhci-hcd",
 	.product_desc =		"xHCI Host Controller",
-	.hcd_priv_size =	sizeof(struct xhci_hcd *),
+	.hcd_priv_size =	sizeof(struct xhci_hcd),
 
 	/*
 	 * generic hardware linkage
@@ -5059,6 +5076,10 @@ static int __init xhci_hcd_init(void)
 	BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
 	/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
 	BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
+	if (usb_disabled())
+		return -ENODEV;
+
 	return 0;
 }
 
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 0b9451250e33..9be7348872ba 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1630,6 +1630,7 @@ struct xhci_hcd {
 /* For controllers with a broken beyond repair streams implementation */
 #define XHCI_BROKEN_STREAMS	(1 << 19)
 #define XHCI_PME_STUCK_QUIRK	(1 << 20)
+#define XHCI_MTK_HOST		(1 << 21)
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
@@ -1656,6 +1657,9 @@ struct xhci_hcd {
 	u32			port_status_u0;
 /* Compliance Mode Timer Triggered every 2 seconds */
 #define COMP_MODE_RCVRY_MSECS 2000
+
+	/* platform-specific data -- must come last */
+	unsigned long		priv[0] __aligned(sizeof(s64));
 };
 
 /* Platform specific overrides to generic XHCI hc_driver ops */
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 637f3f7cfce8..92fdb6e9faff 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -22,18 +22,42 @@ static void complicated_callback(struct urb *urb);
 /*-------------------------------------------------------------------------*/
 
 /* FIXME make these public somewhere; usbdevfs.h? */
-struct usbtest_param {
+
+/* Parameter for usbtest driver. */
+struct usbtest_param_32 {
 	/* inputs */
-	unsigned		test_num;	/* 0..(TEST_CASES-1) */
-	unsigned		iterations;
-	unsigned		length;
-	unsigned		vary;
-	unsigned		sglen;
+	__u32		test_num;	/* 0..(TEST_CASES-1) */
+	__u32		iterations;
+	__u32		length;
+	__u32		vary;
+	__u32		sglen;
 
 	/* outputs */
-	struct timeval		duration;
+	__s32		duration_sec;
+	__s32		duration_usec;
 };
-#define USBTEST_REQUEST	_IOWR('U', 100, struct usbtest_param)
+
+/*
+ * Compat parameter to the usbtest driver.
+ * This supports older user space binaries compiled with 64 bit compiler.
+ */
+struct usbtest_param_64 {
+	/* inputs */
+	__u32		test_num;	/* 0..(TEST_CASES-1) */
+	__u32		iterations;
+	__u32		length;
+	__u32		vary;
+	__u32		sglen;
+
+	/* outputs */
+	__s64		duration_sec;
+	__s64		duration_usec;
+};
+
+/* IOCTL interface to the driver. */
+#define USBTEST_REQUEST_32    _IOWR('U', 100, struct usbtest_param_32)
+/* COMPAT IOCTL interface to the driver. */
+#define USBTEST_REQUEST_64    _IOWR('U', 100, struct usbtest_param_64)
 
 /*-------------------------------------------------------------------------*/
 
@@ -1030,7 +1054,7 @@ struct ctrl_ctx {
 	unsigned		pending;
 	int			status;
 	struct urb		**urb;
-	struct usbtest_param	*param;
+	struct usbtest_param_32	*param;
 	int			last;
 };
 
@@ -1155,7 +1179,7 @@ error:
 }
 
 static int
-test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
+test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param)
 {
 	struct usb_device	*udev = testdev_to_usbdev(dev);
 	struct urb		**urb;
@@ -1849,7 +1873,7 @@ static void complicated_callback(struct urb *urb)
 			goto done;
 		default:
 			dev_err(&ctx->dev->intf->dev,
-					"iso resubmit err %d\n",
+					"resubmit err %d\n",
 					status);
 			/* FALLTHROUGH */
 		case -ENODEV:			/* disconnected */
@@ -1863,7 +1887,7 @@ static void complicated_callback(struct urb *urb)
 	if (ctx->pending == 0) {
 		if (ctx->errors)
 			dev_err(&ctx->dev->intf->dev,
-				"iso test, %lu errors out of %lu\n",
+				"during the test, %lu errors out of %lu\n",
 				ctx->errors, ctx->packet_count);
 		complete(&ctx->done);
 	}
@@ -1930,7 +1954,7 @@ static struct urb *iso_alloc_urb(
 }
 
 static int
-test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
+test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
 		int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
 {
 	struct transfer_context	context;
@@ -2049,81 +2073,20 @@ static int test_unaligned_bulk(
 	return retval;
 }
 
-/*-------------------------------------------------------------------------*/
-
-/* We only have this one interface to user space, through usbfs.
- * User mode code can scan usbfs to find N different devices (maybe on
- * different busses) to use when testing, and allocate one thread per
- * test.  So discovery is simplified, and we have no device naming issues.
- *
- * Don't use these only as stress/load tests.  Use them along with with
- * other USB bus activity:  plugging, unplugging, mousing, mp3 playback,
- * video capture, and so on.  Run different tests at different times, in
- * different sequences.  Nothing here should interact with other devices,
- * except indirectly by consuming USB bandwidth and CPU resources for test
- * threads and request completion.  But the only way to know that for sure
- * is to test when HC queues are in use by many devices.
- *
- * WARNING:  Because usbfs grabs udev->dev.sem before calling this ioctl(),
- * it locks out usbcore in certain code paths.  Notably, if you disconnect
- * the device-under-test, hub_wq will wait block forever waiting for the
- * ioctl to complete ... so that usb_disconnect() can abort the pending
- * urbs and then call usbtest_disconnect().  To abort a test, you're best
- * off just killing the userspace task and waiting for it to exit.
- */
-
+/* Run tests. */
 static int
-usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
+usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param)
 {
 	struct usbtest_dev	*dev = usb_get_intfdata(intf);
 	struct usb_device	*udev = testdev_to_usbdev(dev);
-	struct usbtest_param	*param = buf;
-	int			retval = -EOPNOTSUPP;
 	struct urb		*urb;
 	struct scatterlist	*sg;
 	struct usb_sg_request	req;
-	struct timeval		start;
 	unsigned		i;
-
-	/* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
-
-	pattern = mod_pattern;
-
-	if (code != USBTEST_REQUEST)
-		return -EOPNOTSUPP;
+	int	retval = -EOPNOTSUPP;
 
 	if (param->iterations <= 0)
 		return -EINVAL;
-
-	if (param->sglen > MAX_SGLEN)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-
-	/* FIXME: What if a system sleep starts while a test is running? */
-
-	/* some devices, like ez-usb default devices, need a non-default
-	 * altsetting to have any active endpoints.  some tests change
-	 * altsettings; force a default so most tests don't need to check.
-	 */
-	if (dev->info->alt >= 0) {
-		int	res;
-
-		if (intf->altsetting->desc.bInterfaceNumber) {
-			mutex_unlock(&dev->lock);
-			return -ENODEV;
-		}
-		res = set_altsetting(dev, dev->info->alt);
-		if (res) {
-			dev_err(&intf->dev,
-					"set altsetting to %d failed, %d\n",
-					dev->info->alt, res);
-			mutex_unlock(&dev->lock);
-			return res;
-		}
-	}
-
 	/*
 	 * Just a bunch of test cases that every HCD is expected to handle.
 	 *
@@ -2133,7 +2096,6 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
 	 * FIXME add more tests!  cancel requests, verify the data, control
 	 * queueing, concurrent read+write threads, and so on.
 	 */
-	do_gettimeofday(&start);
 	switch (param->test_num) {
 
 	case 0:
@@ -2548,13 +2510,116 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
 				dev->in_pipe, NULL, 0);
 		break;
 	}
-	do_gettimeofday(&param->duration);
-	param->duration.tv_sec -= start.tv_sec;
-	param->duration.tv_usec -= start.tv_usec;
-	if (param->duration.tv_usec < 0) {
-		param->duration.tv_usec += 1000 * 1000;
-		param->duration.tv_sec -= 1;
+	return retval;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* We only have this one interface to user space, through usbfs.
+ * User mode code can scan usbfs to find N different devices (maybe on
+ * different busses) to use when testing, and allocate one thread per
+ * test.  So discovery is simplified, and we have no device naming issues.
+ *
+ * Don't use these only as stress/load tests.  Use them along with with
+ * other USB bus activity:  plugging, unplugging, mousing, mp3 playback,
+ * video capture, and so on.  Run different tests at different times, in
+ * different sequences.  Nothing here should interact with other devices,
+ * except indirectly by consuming USB bandwidth and CPU resources for test
+ * threads and request completion.  But the only way to know that for sure
+ * is to test when HC queues are in use by many devices.
+ *
+ * WARNING:  Because usbfs grabs udev->dev.sem before calling this ioctl(),
+ * it locks out usbcore in certain code paths.  Notably, if you disconnect
+ * the device-under-test, hub_wq will wait block forever waiting for the
+ * ioctl to complete ... so that usb_disconnect() can abort the pending
+ * urbs and then call usbtest_disconnect().  To abort a test, you're best
+ * off just killing the userspace task and waiting for it to exit.
+ */
+
+static int
+usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
+{
+
+	struct usbtest_dev	*dev = usb_get_intfdata(intf);
+	struct usbtest_param_64 *param_64 = buf;
+	struct usbtest_param_32 temp;
+	struct usbtest_param_32 *param_32 = buf;
+	struct timespec64 start;
+	struct timespec64 end;
+	struct timespec64 duration;
+	int retval = -EOPNOTSUPP;
+
+	/* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
+
+	pattern = mod_pattern;
+
+	if (mutex_lock_interruptible(&dev->lock))
+		return -ERESTARTSYS;
+
+	/* FIXME: What if a system sleep starts while a test is running? */
+
+	/* some devices, like ez-usb default devices, need a non-default
+	 * altsetting to have any active endpoints.  some tests change
+	 * altsettings; force a default so most tests don't need to check.
+	 */
+	if (dev->info->alt >= 0) {
+		if (intf->altsetting->desc.bInterfaceNumber) {
+			retval = -ENODEV;
+			goto free_mutex;
+		}
+		retval = set_altsetting(dev, dev->info->alt);
+		if (retval) {
+			dev_err(&intf->dev,
+					"set altsetting to %d failed, %d\n",
+					dev->info->alt, retval);
+			goto free_mutex;
+		}
+	}
+
+	switch (code) {
+	case USBTEST_REQUEST_64:
+		temp.test_num = param_64->test_num;
+		temp.iterations = param_64->iterations;
+		temp.length = param_64->length;
+		temp.sglen = param_64->sglen;
+		temp.vary = param_64->vary;
+		param_32 = &temp;
+		break;
+
+	case USBTEST_REQUEST_32:
+		break;
+
+	default:
+		retval = -EOPNOTSUPP;
+		goto free_mutex;
+	}
+
+	ktime_get_ts64(&start);
+
+	retval = usbtest_do_ioctl(intf, param_32);
+	if (retval)
+		goto free_mutex;
+
+	ktime_get_ts64(&end);
+
+	duration = timespec64_sub(end, start);
+
+	temp.duration_sec = duration.tv_sec;
+	temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC;
+
+	switch (code) {
+	case USBTEST_REQUEST_32:
+		param_32->duration_sec = temp.duration_sec;
+		param_32->duration_usec = temp.duration_usec;
+		break;
+
+	case USBTEST_REQUEST_64:
+		param_64->duration_sec = temp.duration_sec;
+		param_64->duration_usec = temp.duration_usec;
+		break;
 	}
+
+free_mutex:
 	mutex_unlock(&dev->lock);
 	return retval;
 }
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index 3598f1a62673..1a874a1f3890 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -18,6 +18,7 @@
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
+#include <linux/time64.h>
 
 #include <asm/uaccess.h>
 
@@ -92,8 +93,8 @@ struct mon_bin_hdr {
 	unsigned short busnum;	/* Bus number */
 	char flag_setup;
 	char flag_data;
-	s64 ts_sec;		/* gettimeofday */
-	s32 ts_usec;		/* gettimeofday */
+	s64 ts_sec;		/* getnstimeofday64 */
+	s32 ts_usec;		/* getnstimeofday64 */
 	int status;
 	unsigned int len_urb;	/* Length of data (submitted or actual) */
 	unsigned int len_cap;	/* Delivered length */
@@ -483,7 +484,7 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb,
     char ev_type, int status)
 {
 	const struct usb_endpoint_descriptor *epd = &urb->ep->desc;
-	struct timeval ts;
+	struct timespec64 ts;
 	unsigned long flags;
 	unsigned int urb_length;
 	unsigned int offset;
@@ -494,7 +495,7 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb,
 	struct mon_bin_hdr *ep;
 	char data_tag = 0;
 
-	do_gettimeofday(&ts);
+	getnstimeofday64(&ts);
 
 	spin_lock_irqsave(&rp->b_lock, flags);
 
@@ -568,7 +569,7 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb,
 	ep->busnum = urb->dev->bus->busnum;
 	ep->id = (unsigned long) urb;
 	ep->ts_sec = ts.tv_sec;
-	ep->ts_usec = ts.tv_usec;
+	ep->ts_usec = ts.tv_nsec / NSEC_PER_USEC;
 	ep->status = status;
 	ep->len_urb = urb_length;
 	ep->len_cap = length + lendesc;
@@ -629,12 +630,12 @@ static void mon_bin_complete(void *data, struct urb *urb, int status)
 static void mon_bin_error(void *data, struct urb *urb, int error)
 {
 	struct mon_reader_bin *rp = data;
-	struct timeval ts;
+	struct timespec64 ts;
 	unsigned long flags;
 	unsigned int offset;
 	struct mon_bin_hdr *ep;
 
-	do_gettimeofday(&ts);
+	getnstimeofday64(&ts);
 
 	spin_lock_irqsave(&rp->b_lock, flags);
 
@@ -656,7 +657,7 @@ static void mon_bin_error(void *data, struct urb *urb, int error)
 	ep->busnum = urb->dev->bus->busnum;
 	ep->id = (unsigned long) urb;
 	ep->ts_sec = ts.tv_sec;
-	ep->ts_usec = ts.tv_usec;
+	ep->ts_usec = ts.tv_nsec / NSEC_PER_USEC;
 	ep->status = error;
 
 	ep->flag_setup = '-';
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c
index f7c292f4891e..fec3f1128fdc 100644
--- a/drivers/usb/mon/mon_main.c
+++ b/drivers/usb/mon/mon_main.c
@@ -241,7 +241,7 @@ static struct notifier_block mon_nb = {
 /*
  * Ops
  */
-static struct usb_mon_operations mon_ops_0 = {
+static const struct usb_mon_operations mon_ops_0 = {
 	.urb_submit =	mon_submit,
 	.urb_submit_error = mon_submit_error,
 	.urb_complete =	mon_complete,
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index ad408251d955..e59334b09c41 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -9,6 +9,7 @@
 #include <linux/usb.h>
 #include <linux/slab.h>
 #include <linux/time.h>
+#include <linux/ktime.h>
 #include <linux/export.h>
 #include <linux/mutex.h>
 #include <linux/debugfs.h>
@@ -176,12 +177,12 @@ static inline char mon_text_get_data(struct mon_event_text *ep, struct urb *urb,
 
 static inline unsigned int mon_get_timestamp(void)
 {
-	struct timeval tval;
+	struct timespec64 now;
 	unsigned int stamp;
 
-	do_gettimeofday(&tval);
-	stamp = tval.tv_sec & 0xFFF;	/* 2^32 = 4294967296. Limit to 4096s. */
-	stamp = stamp * 1000000 + tval.tv_usec;
+	ktime_get_ts64(&now);
+	stamp = now.tv_sec & 0xFFF;  /* 2^32 = 4294967296. Limit to 4096s. */
+	stamp = stamp * USEC_PER_SEC + now.tv_nsec / NSEC_PER_USEC;
 	return stamp;
 }
 
@@ -386,7 +387,8 @@ static ssize_t mon_text_read_t(struct file *file, char __user *buf,
 	struct mon_event_text *ep;
 	struct mon_text_ptr ptr;
 
-	if (IS_ERR(ep = mon_text_read_wait(rp, file)))
+	ep = mon_text_read_wait(rp, file);
+	if (IS_ERR(ep))
 		return PTR_ERR(ep);
 	mutex_lock(&rp->printf_lock);
 	ptr.cnt = 0;
@@ -413,7 +415,8 @@ static ssize_t mon_text_read_u(struct file *file, char __user *buf,
 	struct mon_event_text *ep;
 	struct mon_text_ptr ptr;
 
-	if (IS_ERR(ep = mon_text_read_wait(rp, file)))
+	ep = mon_text_read_wait(rp, file);
+	if (IS_ERR(ep))
 		return PTR_ERR(ep);
 	mutex_lock(&rp->printf_lock);
 	ptr.cnt = 0;
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index ee9ff7028b92..c3791a01ab31 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1360,8 +1360,7 @@ static int ep_config_from_table(struct musb *musb)
 		break;
 	}
 
-	printk(KERN_DEBUG "%s: setup fifo_mode %d\n",
-			musb_driver_name, fifo_mode);
+	pr_debug("%s: setup fifo_mode %d\n", musb_driver_name, fifo_mode);
 
 
 done:
@@ -1390,7 +1389,7 @@ done:
 		musb->nr_endpoints = max(epn, musb->nr_endpoints);
 	}
 
-	printk(KERN_DEBUG "%s: %d/%d max ep, %d/%d memory\n",
+	pr_debug("%s: %d/%d max ep, %d/%d memory\n",
 			musb_driver_name,
 			n + 1, musb->config->num_eps * 2 - 1,
 			offset, (1 << (musb->config->ram_bits + 2)));
@@ -1491,8 +1490,7 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
 	if (reg & MUSB_CONFIGDATA_SOFTCONE)
 		strcat(aInfo, ", SoftConn");
 
-	printk(KERN_DEBUG "%s: ConfigData=0x%02x (%s)\n",
-			musb_driver_name, reg, aInfo);
+	pr_debug("%s: ConfigData=0x%02x (%s)\n", musb_driver_name, reg, aInfo);
 
 	aDate[0] = 0;
 	if (MUSB_CONTROLLER_MHDRC == musb_type) {
@@ -1502,9 +1500,8 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
 		musb->is_multipoint = 0;
 		type = "";
 #ifndef	CONFIG_USB_OTG_BLACKLIST_HUB
-		printk(KERN_ERR
-			"%s: kernel must blacklist external hubs\n",
-			musb_driver_name);
+		pr_err("%s: kernel must blacklist external hubs\n",
+		       musb_driver_name);
 #endif
 	}
 
@@ -1513,8 +1510,8 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
 	snprintf(aRevision, 32, "%d.%d%s", MUSB_HWVERS_MAJOR(musb->hwvers),
 		MUSB_HWVERS_MINOR(musb->hwvers),
 		(musb->hwvers & MUSB_HWVERS_RC) ? "RC" : "");
-	printk(KERN_DEBUG "%s: %sHDRC RTL version %s %s\n",
-			musb_driver_name, type, aRevision, aDate);
+	pr_debug("%s: %sHDRC RTL version %s %s\n",
+		 musb_driver_name, type, aRevision, aDate);
 
 	/* configure ep0 */
 	musb_configure_ep0(musb);
@@ -1705,6 +1702,23 @@ EXPORT_SYMBOL_GPL(musb_dma_completion);
 #define use_dma			0
 #endif
 
+static void (*musb_phy_callback)(enum musb_vbus_id_status status);
+
+/*
+ * musb_mailbox - optional phy notifier function
+ * @status phy state change
+ *
+ * Optionally gets called from the USB PHY. Note that the USB PHY must be
+ * disabled at the point the phy_callback is registered or unregistered.
+ */
+void musb_mailbox(enum musb_vbus_id_status status)
+{
+	if (musb_phy_callback)
+		musb_phy_callback(status);
+
+};
+EXPORT_SYMBOL_GPL(musb_mailbox);
+
 /*-------------------------------------------------------------------------*/
 
 static ssize_t
@@ -2117,8 +2131,15 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 		musb->xceiv->io_ops = &musb_ulpi_access;
 	}
 
+	if (musb->ops->phy_callback)
+		musb_phy_callback = musb->ops->phy_callback;
+
 	pm_runtime_get_sync(musb->controller);
 
+	status = usb_phy_init(musb->xceiv);
+	if (status < 0)
+		goto err_usb_phy_init;
+
 	if (use_dma && dev->dma_mask) {
 		musb->dma_controller =
 			musb_dma_controller_create(musb, musb->mregs);
@@ -2239,7 +2260,11 @@ fail3:
 	cancel_delayed_work_sync(&musb->deassert_reset_work);
 	if (musb->dma_controller)
 		musb_dma_controller_destroy(musb->dma_controller);
+
 fail2_5:
+	usb_phy_shutdown(musb->xceiv);
+
+err_usb_phy_init:
 	pm_runtime_put_sync(musb->controller);
 
 fail2:
@@ -2295,10 +2320,13 @@ static int musb_remove(struct platform_device *pdev)
 	 */
 	musb_exit_debugfs(musb);
 	musb_shutdown(pdev);
+	musb_phy_callback = NULL;
 
 	if (musb->dma_controller)
 		musb_dma_controller_destroy(musb->dma_controller);
 
+	usb_phy_shutdown(musb->xceiv);
+
 	cancel_work_sync(&musb->irq_work);
 	cancel_delayed_work_sync(&musb->finish_resume_work);
 	cancel_delayed_work_sync(&musb->deassert_reset_work);
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 2337d7a7d62d..fd215fb45fd4 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -168,6 +168,7 @@ struct musb_io;
  * @adjust_channel_params: pre check for standard dma channel_program func
  * @pre_root_reset_end: called before the root usb port reset flag gets cleared
  * @post_root_reset_end: called after the root usb port reset flag gets cleared
+ * @phy_callback: optional callback function for the phy to call
  */
 struct musb_platform_ops {
 
@@ -214,6 +215,7 @@ struct musb_platform_ops {
 				dma_addr_t *dma_addr, u32 *len);
 	void	(*pre_root_reset_end)(struct musb *musb);
 	void	(*post_root_reset_end)(struct musb *musb);
+	void	(*phy_callback)(enum musb_vbus_id_status status);
 };
 
 /*
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 67ad630c86c9..87bd578799a8 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -353,9 +353,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
 					 *	1	>0	Yes(FS bulk)
 					 */
 					if (!musb_ep->hb_mult ||
-						(musb_ep->hb_mult &&
-						 can_bulk_split(musb,
-						    musb_ep->type)))
+					    can_bulk_split(musb,
+							   musb_ep->type))
 						csr |= MUSB_TXCSR_AUTOSET;
 				}
 				csr &= ~MUSB_TXCSR_P_UNDERRUN;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 1bd9232ff76f..c84e0322c108 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -36,7 +36,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/err.h>
 #include <linux/delay.h>
-#include <linux/usb/musb-omap.h>
+#include <linux/usb/musb.h>
 #include <linux/phy/omap_control_phy.h>
 #include <linux/of_platform.h>
 
@@ -46,7 +46,7 @@
 struct omap2430_glue {
 	struct device		*dev;
 	struct platform_device	*musb;
-	enum omap_musb_vbus_id_status status;
+	enum musb_vbus_id_status status;
 	struct work_struct	omap_musb_mailbox_work;
 	struct device		*control_otghs;
 };
@@ -234,7 +234,7 @@ static inline void omap2430_low_level_init(struct musb *musb)
 	musb_writel(musb->mregs, OTG_FORCESTDBY, l);
 }
 
-void omap_musb_mailbox(enum omap_musb_vbus_id_status status)
+static void omap2430_musb_mailbox(enum musb_vbus_id_status status)
 {
 	struct omap2430_glue	*glue = _glue;
 
@@ -251,7 +251,6 @@ void omap_musb_mailbox(enum omap_musb_vbus_id_status status)
 
 	schedule_work(&glue->omap_musb_mailbox_work);
 }
-EXPORT_SYMBOL_GPL(omap_musb_mailbox);
 
 static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 {
@@ -262,7 +261,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 	struct usb_otg *otg = musb->xceiv->otg;
 
 	switch (glue->status) {
-	case OMAP_MUSB_ID_GROUND:
+	case MUSB_ID_GROUND:
 		dev_dbg(dev, "ID GND\n");
 
 		otg->default_a = true;
@@ -276,7 +275,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		}
 		break;
 
-	case OMAP_MUSB_VBUS_VALID:
+	case MUSB_VBUS_VALID:
 		dev_dbg(dev, "VBUS Connect\n");
 
 		otg->default_a = false;
@@ -287,8 +286,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
 		break;
 
-	case OMAP_MUSB_ID_FLOAT:
-	case OMAP_MUSB_VBUS_OFF:
+	case MUSB_ID_FLOAT:
+	case MUSB_VBUS_OFF:
 		dev_dbg(dev, "VBUS Disconnect\n");
 
 		musb->xceiv->last_event = USB_EVENT_NONE;
@@ -430,7 +429,7 @@ static int omap2430_musb_init(struct musb *musb)
 
 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
 
-	if (glue->status != OMAP_MUSB_UNKNOWN)
+	if (glue->status != MUSB_UNKNOWN)
 		omap_musb_set_mailbox(glue);
 
 	phy_init(musb->phy);
@@ -455,7 +454,7 @@ static void omap2430_musb_enable(struct musb *musb)
 
 	switch (glue->status) {
 
-	case OMAP_MUSB_ID_GROUND:
+	case MUSB_ID_GROUND:
 		omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST);
 		if (data->interface_type != MUSB_INTERFACE_UTMI)
 			break;
@@ -474,7 +473,7 @@ static void omap2430_musb_enable(struct musb *musb)
 		}
 		break;
 
-	case OMAP_MUSB_VBUS_VALID:
+	case MUSB_VBUS_VALID:
 		omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
 		break;
 
@@ -488,7 +487,7 @@ static void omap2430_musb_disable(struct musb *musb)
 	struct device *dev = musb->controller;
 	struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
 
-	if (glue->status != OMAP_MUSB_UNKNOWN)
+	if (glue->status != MUSB_UNKNOWN)
 		omap_control_usb_set_mode(glue->control_otghs,
 			USB_MODE_DISCONNECT);
 }
@@ -520,6 +519,8 @@ static const struct musb_platform_ops omap2430_ops = {
 
 	.enable		= omap2430_musb_enable,
 	.disable	= omap2430_musb_disable,
+
+	.phy_callback	= omap2430_musb_mailbox,
 };
 
 static u64 omap2430_dmamask = DMA_BIT_MASK(32);
@@ -551,7 +552,7 @@ static int omap2430_probe(struct platform_device *pdev)
 
 	glue->dev			= &pdev->dev;
 	glue->musb			= musb;
-	glue->status			= OMAP_MUSB_UNKNOWN;
+	glue->status			= MUSB_UNKNOWN;
 	glue->control_otghs = ERR_PTR(-ENODEV);
 
 	if (np) {
@@ -663,8 +664,11 @@ static int omap2430_remove(struct platform_device *pdev)
 {
 	struct omap2430_glue		*glue = platform_get_drvdata(pdev);
 
+	pm_runtime_get_sync(glue->dev);
 	cancel_work_sync(&glue->omap_musb_mailbox_work);
 	platform_device_unregister(glue->musb);
+	pm_runtime_put_sync(glue->dev);
+	pm_runtime_disable(glue->dev);
 
 	return 0;
 }
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 22e8ecb6bfbd..c6904742e2aa 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -66,6 +66,7 @@ config AM335X_PHY_USB
 	select USB_PHY
 	select AM335X_CONTROL_USB
 	select NOP_USB_XCEIV
+	select USB_COMMON
 	help
 	  This driver provides PHY support for that phy which part for the
 	  AM335x SoC.
@@ -186,19 +187,6 @@ config USB_MXS_PHY
 
 	  MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x.
 
-config USB_RCAR_PHY
-	tristate "Renesas R-Car USB PHY support"
-	depends on USB || USB_GADGET
-	depends on ARCH_R8A7778 || ARCH_R8A7779 || COMPILE_TEST
-	select USB_PHY
-	help
-	  Say Y here to add support for the Renesas R-Car USB common PHY driver.
-	  This chip is typically used as USB PHY for USB host, gadget.
-	  This driver supports R8A7778 and R8A7779.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called phy-rcar-usb.
-
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
 	depends on ARM || ARM64
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index 19c0dccbb116..b433e5d89be4 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -23,7 +23,6 @@ obj-$(CONFIG_USB_MSM_OTG)		+= phy-msm-usb.o
 obj-$(CONFIG_USB_QCOM_8X16_PHY)	+= phy-qcom-8x16-usb.o
 obj-$(CONFIG_USB_MV_OTG)		+= phy-mv-usb.o
 obj-$(CONFIG_USB_MXS_PHY)		+= phy-mxs-usb.o
-obj-$(CONFIG_USB_RCAR_PHY)		+= phy-rcar-usb.o
 obj-$(CONFIG_USB_ULPI)			+= phy-ulpi.o
 obj-$(CONFIG_USB_ULPI_VIEWPORT)		+= phy-ulpi-viewport.o
 obj-$(CONFIG_KEYSTONE_USB_PHY)		+= phy-keystone.o
diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 7b3035ff9434..42a1afe36a90 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -4,7 +4,8 @@
 #include <linux/of.h>
 #include <linux/io.h>
 #include <linux/delay.h>
-#include "am35x-phy-control.h"
+#include <linux/usb/otg.h>
+#include "phy-am335x-control.h"
 
 struct am335x_control_usb {
 	struct device *dev;
@@ -58,7 +59,8 @@ static void am335x_phy_wkup(struct  phy_control *phy_ctrl, u32 id, bool on)
 	spin_unlock(&usb_ctrl->lock);
 }
 
-static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on)
+static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id,
+				enum usb_dr_mode dr_mode, bool on)
 {
 	struct am335x_control_usb *usb_ctrl;
 	u32 val;
@@ -80,8 +82,14 @@ static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on)
 
 	val = readl(usb_ctrl->phy_reg + reg);
 	if (on) {
-		val &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN);
-		val |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN;
+		if (dr_mode == USB_DR_MODE_HOST) {
+			val &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN |
+					USBPHY_OTGVDET_EN);
+			val |= USBPHY_OTGSESSEND_EN;
+		} else {
+			val &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN);
+			val |= USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN;
+		}
 	} else {
 		val |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN;
 	}
diff --git a/drivers/usb/phy/am35x-phy-control.h b/drivers/usb/phy/phy-am335x-control.h
index b96594d1962c..e86b3165d69d 100644
--- a/drivers/usb/phy/am35x-phy-control.h
+++ b/drivers/usb/phy/phy-am335x-control.h
@@ -2,13 +2,15 @@
 #define _AM335x_PHY_CONTROL_H_
 
 struct phy_control {
-	void (*phy_power)(struct phy_control *phy_ctrl, u32 id, bool on);
+	void (*phy_power)(struct phy_control *phy_ctrl, u32 id,
+			enum usb_dr_mode dr_mode, bool on);
 	void (*phy_wkup)(struct phy_control *phy_ctrl, u32 id, bool on);
 };
 
-static inline void phy_ctrl_power(struct phy_control *phy_ctrl, u32 id, bool on)
+static inline void phy_ctrl_power(struct phy_control *phy_ctrl, u32 id,
+				enum usb_dr_mode dr_mode, bool on)
 {
-	phy_ctrl->phy_power(phy_ctrl, id, on);
+	phy_ctrl->phy_power(phy_ctrl, id, dr_mode, on);
 }
 
 static inline void phy_ctrl_wkup(struct phy_control *phy_ctrl, u32 id, bool on)
diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index 90b67a4ca221..39b424f7f629 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -8,21 +8,23 @@
 #include <linux/regulator/consumer.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/usb/of.h>
 
-#include "am35x-phy-control.h"
+#include "phy-am335x-control.h"
 #include "phy-generic.h"
 
 struct am335x_phy {
 	struct usb_phy_generic usb_phy_gen;
 	struct phy_control *phy_ctrl;
 	int id;
+	enum usb_dr_mode dr_mode;
 };
 
 static int am335x_init(struct usb_phy *phy)
 {
 	struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
 
-	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);
 	return 0;
 }
 
@@ -30,7 +32,7 @@ static void am335x_shutdown(struct usb_phy *phy)
 {
 	struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
 
-	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
 }
 
 static int am335x_phy_probe(struct platform_device *pdev)
@@ -46,12 +48,15 @@ static int am335x_phy_probe(struct platform_device *pdev)
 	am_phy->phy_ctrl = am335x_get_phy_control(dev);
 	if (!am_phy->phy_ctrl)
 		return -EPROBE_DEFER;
+
 	am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy");
 	if (am_phy->id < 0) {
 		dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id);
 		return am_phy->id;
 	}
 
+	am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node);
+
 	ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
 	if (ret)
 		return ret;
@@ -75,7 +80,7 @@ static int am335x_phy_probe(struct platform_device *pdev)
 	 */
 
 	device_set_wakeup_enable(dev, false);
-	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
 
 	return 0;
 }
@@ -105,7 +110,7 @@ static int am335x_phy_suspend(struct device *dev)
 	if (device_may_wakeup(dev))
 		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true);
 
-	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
 
 	return 0;
 }
@@ -115,7 +120,7 @@ static int am335x_phy_resume(struct device *dev)
 	struct platform_device	*pdev = to_platform_device(dev);
 	struct am335x_phy	*am_phy = platform_get_drvdata(pdev);
 
-	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);
 
 	if (device_may_wakeup(dev))
 		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false);
diff --git a/drivers/usb/phy/phy-rcar-usb.c b/drivers/usb/phy/phy-rcar-usb.c
deleted file mode 100644
index 1e09b8377885..000000000000
--- a/drivers/usb/phy/phy-rcar-usb.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * Renesas R-Car USB phy driver
- *
- * Copyright (C) 2012-2013 Renesas Solutions Corp.
- * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- * Copyright (C) 2013 Cogent Embedded, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/usb/otg.h>
-#include <linux/platform_device.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/platform_data/usb-rcar-phy.h>
-
-/* REGS block */
-#define USBPCTRL0	0x00
-#define USBPCTRL1	0x04
-#define USBST		0x08
-#define USBEH0		0x0C
-#define USBOH0		0x1C
-#define USBCTL0		0x58
-
-/* High-speed signal quality characteristic control registers (R8A7778 only) */
-#define HSQCTL1		0x24
-#define HSQCTL2		0x28
-
-/* USBPCTRL0 */
-#define OVC2		(1 << 10) /* (R8A7779 only)			*/
-				/* Switches the OVC input pin for port 2: */
-				/* 1: USB_OVC2, 0: OVC2			*/
-#define OVC1_VBUS1	(1 << 9) /* Switches the OVC input pin for port 1: */
-				/* 1: USB_OVC1, 0: OVC1/VBUS1		*/
-				/* Function mode: set to 0		*/
-#define OVC0		(1 << 8) /* Switches the OVC input pin for port 0: */
-				/* 1: USB_OVC0 pin, 0: OVC0		*/
-#define OVC2_ACT 	(1 << 6) /* (R8A7779 only)			*/
-				/* Host mode: OVC2 polarity:		*/
-				/* 1: active-high, 0: active-low	*/
-#define PENC		(1 << 4) /* Function mode: output level of PENC1 pin: */
-				/* 1: high, 0: low			*/
-#define OVC0_ACT 	(1 << 3) /* Host mode: OVC0 polarity:		*/
-				/* 1: active-high, 0: active-low	*/
-#define OVC1_ACT	(1 << 1) /* Host mode: OVC1 polarity:		*/
-				/* 1: active-high, 0: active-low	*/
-				/* Function mode: be sure to set to 1	*/
-#define PORT1		(1 << 0) /* Selects port 1 mode:		*/
-				/* 1: function, 0: host			*/
-/* USBPCTRL1 */
-#define PHY_RST		(1 << 2)
-#define PLL_ENB		(1 << 1)
-#define PHY_ENB		(1 << 0)
-
-/* USBST */
-#define ST_ACT		(1 << 31)
-#define ST_PLL		(1 << 30)
-
-struct rcar_usb_phy_priv {
-	struct usb_phy phy;
-	spinlock_t lock;
-
-	void __iomem *reg0;
-	void __iomem *reg1;
-	int counter;
-};
-
-#define usb_phy_to_priv(p) container_of(p, struct rcar_usb_phy_priv, phy)
-
-
-/*
- * USB initial/install operation.
- *
- * This function setup USB phy.
- * The used value and setting order came from
- * [USB :: Initial setting] on datasheet.
- */
-static int rcar_usb_phy_init(struct usb_phy *phy)
-{
-	struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
-	struct device *dev = phy->dev;
-	struct rcar_phy_platform_data *pdata = dev_get_platdata(dev);
-	void __iomem *reg0 = priv->reg0;
-	void __iomem *reg1 = priv->reg1;
-	static const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT };
-	int i;
-	u32 val;
-	unsigned long flags;
-
-	spin_lock_irqsave(&priv->lock, flags);
-	if (priv->counter++ == 0) {
-
-		/*
-		 * USB phy start-up
-		 */
-
-		/* (1) USB-PHY standby release */
-		iowrite32(PHY_ENB, (reg0 + USBPCTRL1));
-
-		/* (2) start USB-PHY internal PLL */
-		iowrite32(PHY_ENB | PLL_ENB, (reg0 + USBPCTRL1));
-
-		/* (3) set USB-PHY in accord with the conditions of usage */
-		if (reg1) {
-			u32 hsqctl1 = pdata->ferrite_bead ? 0x41 : 0;
-			u32 hsqctl2 = pdata->ferrite_bead ? 0x0d : 7;
-
-			iowrite32(hsqctl1, reg1 + HSQCTL1);
-			iowrite32(hsqctl2, reg1 + HSQCTL2);
-		}
-
-		/* (4) USB module status check */
-		for (i = 0; i < 1024; i++) {
-			udelay(10);
-			val = ioread32(reg0 + USBST);
-			if (val == (ST_ACT | ST_PLL))
-				break;
-		}
-
-		if (val != (ST_ACT | ST_PLL)) {
-			dev_err(dev, "USB phy not ready\n");
-			goto phy_init_end;
-		}
-
-		/* (5) USB-PHY reset clear */
-		iowrite32(PHY_ENB | PLL_ENB | PHY_RST, (reg0 + USBPCTRL1));
-
-		/* Board specific port settings */
-		val = 0;
-		if (pdata->port1_func)
-			val |= PORT1;
-		if (pdata->penc1)
-			val |= PENC;
-		for (i = 0; i < 3; i++) {
-			/* OVCn bits follow each other in the right order */
-			if (pdata->ovc_pin[i].select_3_3v)
-				val |= OVC0 << i;
-			/* OVCn_ACT bits are spaced by irregular intervals */
-			if (pdata->ovc_pin[i].active_high)
-				val |= ovcn_act[i];
-		}
-		iowrite32(val, (reg0 + USBPCTRL0));
-
-		/*
-		 * Bus alignment settings
-		 */
-
-		/* (1) EHCI bus alignment (little endian) */
-		iowrite32(0x00000000, (reg0 + USBEH0));
-
-		/* (1) OHCI bus alignment (little endian) */
-		iowrite32(0x00000000, (reg0 + USBOH0));
-	}
-
-phy_init_end:
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	return 0;
-}
-
-static void rcar_usb_phy_shutdown(struct usb_phy *phy)
-{
-	struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
-	void __iomem *reg0 = priv->reg0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&priv->lock, flags);
-
-	if (priv->counter-- == 1)	/* last user */
-		iowrite32(0x00000000, (reg0 + USBPCTRL1));
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static int rcar_usb_phy_probe(struct platform_device *pdev)
-{
-	struct rcar_usb_phy_priv *priv;
-	struct resource *res0, *res1;
-	struct device *dev = &pdev->dev;
-	void __iomem *reg0, *reg1 = NULL;
-	int ret;
-
-	if (!dev_get_platdata(&pdev->dev)) {
-		dev_err(dev, "No platform data\n");
-		return -EINVAL;
-	}
-
-	res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	reg0 = devm_ioremap_resource(dev, res0);
-	if (IS_ERR(reg0))
-		return PTR_ERR(reg0);
-
-	res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	reg1 = devm_ioremap_resource(dev, res1);
-	if (IS_ERR(reg1))
-		return PTR_ERR(reg1);
-
-	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	priv->reg0		= reg0;
-	priv->reg1		= reg1;
-	priv->counter		= 0;
-	priv->phy.dev		= dev;
-	priv->phy.label		= dev_name(dev);
-	priv->phy.init		= rcar_usb_phy_init;
-	priv->phy.shutdown	= rcar_usb_phy_shutdown;
-	spin_lock_init(&priv->lock);
-
-	ret = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2);
-	if (ret < 0) {
-		dev_err(dev, "usb phy addition error\n");
-		return ret;
-	}
-
-	platform_set_drvdata(pdev, priv);
-
-	return ret;
-}
-
-static int rcar_usb_phy_remove(struct platform_device *pdev)
-{
-	struct rcar_usb_phy_priv *priv = platform_get_drvdata(pdev);
-
-	usb_remove_phy(&priv->phy);
-
-	return 0;
-}
-
-static struct platform_driver rcar_usb_phy_driver = {
-	.driver		= {
-		.name	= "rcar_usb_phy",
-	},
-	.probe		= rcar_usb_phy_probe,
-	.remove		= rcar_usb_phy_remove,
-};
-
-module_platform_driver(rcar_usb_phy_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("Renesas R-Car USB phy");
-MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index 12741856a75c..014dbbd72132 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -25,7 +25,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
-#include <linux/usb/musb-omap.h>
+#include <linux/usb/musb.h>
 #include <linux/usb/phy_companion.h>
 #include <linux/phy/omap_usb.h>
 #include <linux/i2c/twl.h>
@@ -102,7 +102,7 @@ struct twl6030_usb {
 
 	int			irq1;
 	int			irq2;
-	enum omap_musb_vbus_id_status linkstat;
+	enum musb_vbus_id_status linkstat;
 	u8			asleep;
 	bool			vbus_enable;
 	const char		*regulator;
@@ -189,13 +189,13 @@ static ssize_t twl6030_usb_vbus_show(struct device *dev,
 	spin_lock_irqsave(&twl->lock, flags);
 
 	switch (twl->linkstat) {
-	case OMAP_MUSB_VBUS_VALID:
+	case MUSB_VBUS_VALID:
 	       ret = snprintf(buf, PAGE_SIZE, "vbus\n");
 	       break;
-	case OMAP_MUSB_ID_GROUND:
+	case MUSB_ID_GROUND:
 	       ret = snprintf(buf, PAGE_SIZE, "id\n");
 	       break;
-	case OMAP_MUSB_VBUS_OFF:
+	case MUSB_VBUS_OFF:
 	       ret = snprintf(buf, PAGE_SIZE, "none\n");
 	       break;
 	default:
@@ -210,7 +210,7 @@ static DEVICE_ATTR(vbus, 0444, twl6030_usb_vbus_show, NULL);
 static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
 {
 	struct twl6030_usb *twl = _twl;
-	enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN;
+	enum musb_vbus_id_status status = MUSB_UNKNOWN;
 	u8 vbus_state, hw_state;
 	int ret;
 
@@ -225,14 +225,14 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
 				dev_err(twl->dev, "Failed to enable usb3v3\n");
 
 			twl->asleep = 1;
-			status = OMAP_MUSB_VBUS_VALID;
+			status = MUSB_VBUS_VALID;
 			twl->linkstat = status;
-			omap_musb_mailbox(status);
+			musb_mailbox(status);
 		} else {
-			if (twl->linkstat != OMAP_MUSB_UNKNOWN) {
-				status = OMAP_MUSB_VBUS_OFF;
+			if (twl->linkstat != MUSB_UNKNOWN) {
+				status = MUSB_VBUS_OFF;
 				twl->linkstat = status;
-				omap_musb_mailbox(status);
+				musb_mailbox(status);
 				if (twl->asleep) {
 					regulator_disable(twl->usb3v3);
 					twl->asleep = 0;
@@ -248,7 +248,7 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
 static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
 {
 	struct twl6030_usb *twl = _twl;
-	enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN;
+	enum musb_vbus_id_status status = MUSB_UNKNOWN;
 	u8 hw_state;
 	int ret;
 
@@ -262,9 +262,9 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
 		twl->asleep = 1;
 		twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_CLR);
 		twl6030_writeb(twl, TWL_MODULE_USB, 0x10, USB_ID_INT_EN_HI_SET);
-		status = OMAP_MUSB_ID_GROUND;
+		status = MUSB_ID_GROUND;
 		twl->linkstat = status;
-		omap_musb_mailbox(status);
+		musb_mailbox(status);
 	} else  {
 		twl6030_writeb(twl, TWL_MODULE_USB, 0x10, USB_ID_INT_EN_HI_CLR);
 		twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET);
@@ -334,7 +334,7 @@ static int twl6030_usb_probe(struct platform_device *pdev)
 	twl->dev		= &pdev->dev;
 	twl->irq1		= platform_get_irq(pdev, 0);
 	twl->irq2		= platform_get_irq(pdev, 1);
-	twl->linkstat		= OMAP_MUSB_UNKNOWN;
+	twl->linkstat		= MUSB_UNKNOWN;
 
 	twl->comparator.set_vbus	= twl6030_set_vbus;
 	twl->comparator.start_srp	= twl6030_start_srp;
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index d82fa36c3465..5af9ca5d54ab 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -302,37 +302,37 @@ static void usbhsc_set_buswait(struct usbhs_priv *priv)
  */
 
 /* commonly used on old SH-Mobile SoCs */
-static u32 usbhsc_default_pipe_type[] = {
-		USB_ENDPOINT_XFER_CONTROL,
-		USB_ENDPOINT_XFER_ISOC,
-		USB_ENDPOINT_XFER_ISOC,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_INT,
+static struct renesas_usbhs_driver_pipe_config usbhsc_default_pipe[] = {
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_CONTROL, 64, 0x00, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x08, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x18, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x28, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x38, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x48, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x04, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x05, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x06, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x07, false),
 };
 
 /* commonly used on newer SH-Mobile and R-Car SoCs */
-static u32 usbhsc_new_pipe_type[] = {
-		USB_ENDPOINT_XFER_CONTROL,
-		USB_ENDPOINT_XFER_ISOC,
-		USB_ENDPOINT_XFER_ISOC,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_INT,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
-		USB_ENDPOINT_XFER_BULK,
+static struct renesas_usbhs_driver_pipe_config usbhsc_new_pipe[] = {
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_CONTROL, 64, 0x00, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x08, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_ISOC, 1024, 0x28, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x48, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x58, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x68, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x04, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x05, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_INT, 64, 0x06, false),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x78, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x88, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0x98, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0xa8, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0xb8, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0xc8, true),
+	RENESAS_USBHS_PIPE(USB_ENDPOINT_XFER_BULK, 512, 0xd8, true),
 };
 
 /*
@@ -481,6 +481,15 @@ static const struct of_device_id usbhs_of_match[] = {
 		.compatible = "renesas,usbhs-r8a7795",
 		.data = (void *)USBHS_TYPE_RCAR_GEN2,
 	},
+	{
+		.compatible = "renesas,rcar-gen2-usbhs",
+		.data = (void *)USBHS_TYPE_RCAR_GEN2,
+	},
+	{
+		/* Gen3 is compatible with Gen2 */
+		.compatible = "renesas,rcar-gen3-usbhs",
+		.data = (void *)USBHS_TYPE_RCAR_GEN2,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, usbhs_of_match);
@@ -564,10 +573,9 @@ static int usbhs_probe(struct platform_device *pdev)
 	switch (priv->dparam.type) {
 	case USBHS_TYPE_RCAR_GEN2:
 		priv->pfunc = usbhs_rcar2_ops;
-		if (!priv->dparam.pipe_type) {
-			priv->dparam.pipe_type = usbhsc_new_pipe_type;
-			priv->dparam.pipe_size =
-				ARRAY_SIZE(usbhsc_new_pipe_type);
+		if (!priv->dparam.pipe_configs) {
+			priv->dparam.pipe_configs = usbhsc_new_pipe;
+			priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_new_pipe);
 		}
 		break;
 	default:
@@ -586,9 +594,9 @@ static int usbhs_probe(struct platform_device *pdev)
 	dfunc->notify_hotplug	= usbhsc_drvcllbck_notify_hotplug;
 
 	/* set default param if platform doesn't have */
-	if (!priv->dparam.pipe_type) {
-		priv->dparam.pipe_type = usbhsc_default_pipe_type;
-		priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
+	if (!priv->dparam.pipe_configs) {
+		priv->dparam.pipe_configs = usbhsc_default_pipe;
+		priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe);
 	}
 	if (!priv->dparam.pio_dma_border)
 		priv->dparam.pio_dma_border = 64; /* 64byte */
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 8f7a78e70975..657f9672ceba 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1042,6 +1042,8 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 	struct usbhsg_gpriv *gpriv;
 	struct usbhsg_uep *uep;
 	struct device *dev = usbhs_priv_to_dev(priv);
+	struct renesas_usbhs_driver_pipe_config *pipe_configs =
+					usbhs_get_dparam(priv, pipe_configs);
 	int pipe_size = usbhs_get_dparam(priv, pipe_size);
 	int i;
 	int ret;
@@ -1111,13 +1113,16 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 			gpriv->gadget.ep0 = &uep->ep;
 			usb_ep_set_maxpacket_limit(&uep->ep, 64);
 			uep->ep.caps.type_control = true;
-		}
-		/* init normal pipe */
-		else {
-			usb_ep_set_maxpacket_limit(&uep->ep, 512);
-			uep->ep.caps.type_iso = true;
-			uep->ep.caps.type_bulk = true;
-			uep->ep.caps.type_int = true;
+		} else {
+			/* init normal pipe */
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_ISOC)
+				uep->ep.caps.type_iso = true;
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_BULK)
+				uep->ep.caps.type_bulk = true;
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_INT)
+				uep->ep.caps.type_int = true;
+			usb_ep_set_maxpacket_limit(&uep->ep,
+						   pipe_configs[i].bufsize);
 			list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
 		}
 		uep->ep.caps.dir_in = true;
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index bd050359926c..1a8e4c45c4c5 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1414,7 +1414,8 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 {
 	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
 	struct usbhs_pipe *pipe;
-	u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
+	struct renesas_usbhs_driver_pipe_config *pipe_configs =
+					usbhs_get_dparam(priv, pipe_configs);
 	int pipe_size = usbhs_get_dparam(priv, pipe_size);
 	int old_type, dir_in, i;
 
@@ -1442,15 +1443,15 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 		 * USB_ENDPOINT_XFER_BULK -> dir in
 		 * ...
 		 */
-		dir_in = (pipe_type[i] == old_type);
-		old_type = pipe_type[i];
+		dir_in = (pipe_configs[i].type == old_type);
+		old_type = pipe_configs[i].type;
 
-		if (USB_ENDPOINT_XFER_CONTROL == pipe_type[i]) {
+		if (USB_ENDPOINT_XFER_CONTROL == pipe_configs[i].type) {
 			pipe = usbhs_dcp_malloc(priv);
 			usbhsh_hpriv_to_dcp(hpriv) = pipe;
 		} else {
 			pipe = usbhs_pipe_malloc(priv,
-						 pipe_type[i],
+						 pipe_configs[i].type,
 						 dir_in);
 		}
 
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index 4f9c3356127a..0e95d2925dc5 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -44,6 +44,15 @@ char *usbhs_pipe_name(struct usbhs_pipe *pipe)
 	return usbhsp_pipe_name[usbhs_pipe_type(pipe)];
 }
 
+static struct renesas_usbhs_driver_pipe_config
+*usbhsp_get_pipe_config(struct usbhs_priv *priv, int pipe_num)
+{
+	struct renesas_usbhs_driver_pipe_config *pipe_configs =
+					usbhs_get_dparam(priv, pipe_configs);
+
+	return &pipe_configs[pipe_num];
+}
+
 /*
  *		DCPCTR/PIPEnCTR functions
  */
@@ -384,18 +393,6 @@ void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len)
 /*
  *		pipe setup
  */
-static int usbhsp_possible_double_buffer(struct usbhs_pipe *pipe)
-{
-	/*
-	 * only ISO / BULK pipe can use double buffer
-	 */
-	if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK) ||
-	    usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC))
-		return 1;
-
-	return 0;
-}
-
 static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 				int is_host,
 				int dir_in)
@@ -412,7 +409,6 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 		[USB_ENDPOINT_XFER_INT]  = TYPE_INT,
 		[USB_ENDPOINT_XFER_ISOC] = TYPE_ISO,
 	};
-	int is_double = usbhsp_possible_double_buffer(pipe);
 
 	if (usbhs_pipe_is_dcp(pipe))
 		return -EINVAL;
@@ -434,10 +430,7 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 	    usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
 		bfre = 0; /* FIXME */
 
-	/* DBLB */
-	if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC) ||
-	    usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
-		dblb = (is_double) ? DBLB : 0;
+	/* DBLB: see usbhs_pipe_config_update() */
 
 	/* CNTMD */
 	if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
@@ -473,13 +466,13 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe)
 {
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
-	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
 	struct device *dev = usbhs_priv_to_dev(priv);
 	int pipe_num = usbhs_pipe_number(pipe);
-	int is_double = usbhsp_possible_double_buffer(pipe);
 	u16 buff_size;
 	u16 bufnmb;
 	u16 bufnmb_cnt;
+	struct renesas_usbhs_driver_pipe_config *pipe_config =
+					usbhsp_get_pipe_config(priv, pipe_num);
 
 	/*
 	 * PIPEBUF
@@ -489,56 +482,13 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe)
 	 *  - "Features"  - "Pipe configuration"
 	 *  - "Operation" - "FIFO Buffer Memory"
 	 *  - "Operation" - "Pipe Control"
-	 *
-	 * ex) if pipe6 - pipe9 are USB_ENDPOINT_XFER_INT (SH7724)
-	 *
-	 * BUFNMB:	PIPE
-	 * 0:		pipe0 (DCP 256byte)
-	 * 1:		-
-	 * 2:		-
-	 * 3:		-
-	 * 4:		pipe6 (INT 64byte)
-	 * 5:		pipe7 (INT 64byte)
-	 * 6:		pipe8 (INT 64byte)
-	 * 7:		pipe9 (INT 64byte)
-	 * 8 - xx:	free (for BULK, ISOC)
 	 */
-
-	/*
-	 * FIXME
-	 *
-	 * it doesn't have good buffer allocator
-	 *
-	 * DCP : 256 byte
-	 * BULK: 512 byte
-	 * INT :  64 byte
-	 * ISOC: 512 byte
-	 */
-	if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_CONTROL))
-		buff_size = 256;
-	else if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT))
-		buff_size = 64;
-	else
-		buff_size = 512;
+	buff_size = pipe_config->bufsize;
+	bufnmb = pipe_config->bufnum;
 
 	/* change buff_size to register value */
 	bufnmb_cnt = (buff_size / 64) - 1;
 
-	/* BUFNMB has been reserved for INT pipe
-	 * see above */
-	if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT)) {
-		bufnmb = pipe_num - 2;
-	} else {
-		bufnmb = info->bufnmb_last;
-		info->bufnmb_last += bufnmb_cnt + 1;
-
-		/*
-		 * double buffer
-		 */
-		if (is_double)
-			info->bufnmb_last += bufnmb_cnt + 1;
-	}
-
 	dev_dbg(dev, "pipe : %d : buff_size 0x%x: bufnmb 0x%x\n",
 		pipe_num, buff_size, bufnmb);
 
@@ -549,8 +499,13 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe)
 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
 			      u16 epnum, u16 maxp)
 {
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	int pipe_num = usbhs_pipe_number(pipe);
+	struct renesas_usbhs_driver_pipe_config *pipe_config =
+					usbhsp_get_pipe_config(priv, pipe_num);
+	u16 dblb = pipe_config->double_buf ? DBLB : 0;
+
 	if (devsel > 0xA) {
-		struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 		struct device *dev = usbhs_priv_to_dev(priv);
 
 		dev_err(dev, "devsel error %d\n", devsel);
@@ -568,7 +523,7 @@ void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
 			     maxp);
 
 	if (!usbhs_pipe_is_dcp(pipe))
-		usbhsp_pipe_cfg_set(pipe,  0x000F, epnum);
+		usbhsp_pipe_cfg_set(pipe,  0x000F | DBLB, epnum | dblb);
 }
 
 /*
@@ -708,23 +663,7 @@ void usbhs_pipe_init(struct usbhs_priv *priv,
 	struct usbhs_pipe *pipe;
 	int i;
 
-	/*
-	 * FIXME
-	 *
-	 * driver needs good allocator.
-	 *
-	 * find first free buffer area (BULK, ISOC)
-	 * (DCP, INT area is fixed)
-	 *
-	 * buffer number 0 - 3 have been reserved for DCP
-	 * see
-	 *	usbhsp_to_bufnmb
-	 */
-	info->bufnmb_last = 4;
 	usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
-		if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT))
-			info->bufnmb_last++;
-
 		usbhsp_flags_init(pipe);
 		pipe->fifo = NULL;
 		pipe->mod_private = NULL;
@@ -851,12 +790,13 @@ int usbhs_pipe_probe(struct usbhs_priv *priv)
 	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
 	struct usbhs_pipe *pipe;
 	struct device *dev = usbhs_priv_to_dev(priv);
-	u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
+	struct renesas_usbhs_driver_pipe_config *pipe_configs =
+					usbhs_get_dparam(priv, pipe_configs);
 	int pipe_size = usbhs_get_dparam(priv, pipe_size);
 	int i;
 
 	/* This driver expects 1st pipe is DCP */
-	if (pipe_type[0] != USB_ENDPOINT_XFER_CONTROL) {
+	if (pipe_configs[0].type != USB_ENDPOINT_XFER_CONTROL) {
 		dev_err(dev, "1st PIPE is not DCP\n");
 		return -EINVAL;
 	}
@@ -876,10 +816,10 @@ int usbhs_pipe_probe(struct usbhs_priv *priv)
 		pipe->priv = priv;
 
 		usbhs_pipe_type(pipe) =
-			pipe_type[i] & USB_ENDPOINT_XFERTYPE_MASK;
+			pipe_configs[i].type & USB_ENDPOINT_XFERTYPE_MASK;
 
 		dev_dbg(dev, "pipe %x\t: %s\n",
-			i, usbhsp_pipe_name[pipe_type[i]]);
+			i, usbhsp_pipe_name[pipe_configs[i].type]);
 	}
 
 	return 0;
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index b0bc7b603016..3212ab51e844 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -46,7 +46,6 @@ struct usbhs_pipe {
 struct usbhs_pipe_info {
 	struct usbhs_pipe *pipe;
 	int size;	/* array size of "pipe" */
-	int bufnmb_last;	/* FIXME : driver needs good allocator */
 
 	int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map);
 };
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 56ecb8b5115d..f612dda9c977 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -475,6 +475,22 @@ config USB_SERIAL_MOS7840
 	  To compile this driver as a module, choose M here: the
 	  module will be called mos7840.  If unsure, choose N.
 
+config USB_SERIAL_MXUPORT11
+	tristate "USB Moxa UPORT 11x0 Serial Driver"
+	---help---
+	  Say Y here if you want to use a MOXA UPort 11x0 Serial hub.
+
+	  This driver supports:
+
+	  - UPort 1110  : 1 port RS-232 USB to Serial Hub.
+	  - UPort 1130  : 1 port RS-422/485 USB to Serial Hub.
+	  - UPort 1130I : 1 port RS-422/485 USB to Serial Hub with Isolation.
+	  - UPort 1150  : 1 port RS-232/422/485 USB to Serial Hub.
+	  - UPort 1150I : 1 port RS-232/422/485 USB to Serial Hub with Isolation.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mxu11x0.
+
 config USB_SERIAL_MXUPORT
 	tristate "USB Moxa UPORT Serial Driver"
 	---help---
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 349d9df0895f..f3fa5e53702d 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_USB_SERIAL_METRO)			+= metro-usb.o
 obj-$(CONFIG_USB_SERIAL_MOS7720)		+= mos7720.o
 obj-$(CONFIG_USB_SERIAL_MOS7840)		+= mos7840.o
 obj-$(CONFIG_USB_SERIAL_MXUPORT)		+= mxuport.o
+obj-$(CONFIG_USB_SERIAL_MXUPORT11)		+= mxu11x0.o
 obj-$(CONFIG_USB_SERIAL_NAVMAN)			+= navman.o
 obj-$(CONFIG_USB_SERIAL_OMNINET)		+= omninet.o
 obj-$(CONFIG_USB_SERIAL_OPTICON)		+= opticon.o
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 7d4f51a32e66..9b90ad747d87 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -38,13 +38,14 @@ static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *,
 							struct ktermios *);
 static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
 							struct ktermios*);
+static bool cp210x_tx_empty(struct usb_serial_port *port);
 static int cp210x_tiocmget(struct tty_struct *);
 static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int);
 static int cp210x_tiocmset_port(struct usb_serial_port *port,
 		unsigned int, unsigned int);
 static void cp210x_break_ctl(struct tty_struct *, int);
-static int cp210x_startup(struct usb_serial *);
-static void cp210x_release(struct usb_serial *);
+static int cp210x_port_probe(struct usb_serial_port *);
+static int cp210x_port_remove(struct usb_serial_port *);
 static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
 
 static const struct usb_device_id id_table[] = {
@@ -160,6 +161,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
 	{ USB_DEVICE(0x1BA4, 0x0002) },	/* Silicon Labs 358x factory default */
@@ -196,8 +198,9 @@ static const struct usb_device_id id_table[] = {
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-struct cp210x_serial_private {
+struct cp210x_port_private {
 	__u8			bInterfaceNumber;
+	bool			has_swapped_line_ctl;
 };
 
 static struct usb_serial_driver cp210x_device = {
@@ -213,10 +216,11 @@ static struct usb_serial_driver cp210x_device = {
 	.close			= cp210x_close,
 	.break_ctl		= cp210x_break_ctl,
 	.set_termios		= cp210x_set_termios,
+	.tx_empty		= cp210x_tx_empty,
 	.tiocmget		= cp210x_tiocmget,
 	.tiocmset		= cp210x_tiocmset,
-	.attach			= cp210x_startup,
-	.release		= cp210x_release,
+	.port_probe		= cp210x_port_probe,
+	.port_remove		= cp210x_port_remove,
 	.dtr_rts		= cp210x_dtr_rts
 };
 
@@ -299,6 +303,25 @@ static struct usb_serial_driver * const serial_drivers[] = {
 #define CONTROL_WRITE_DTR	0x0100
 #define CONTROL_WRITE_RTS	0x0200
 
+/* CP210X_GET_COMM_STATUS returns these 0x13 bytes */
+struct cp210x_comm_status {
+	__le32   ulErrors;
+	__le32   ulHoldReasons;
+	__le32   ulAmountInInQueue;
+	__le32   ulAmountInOutQueue;
+	u8       bEofReceived;
+	u8       bWaitForImmediate;
+	u8       bReserved;
+} __packed;
+
+/*
+ * CP210X_PURGE - 16 bits passed in wValue of USB request.
+ * SiLabs app note AN571 gives a strange description of the 4 bits:
+ * bit 0 or bit 2 clears the transmit queue and 1 or 3 receive.
+ * writing 1 to all, however, purges cp2108 well enough to avoid the hang.
+ */
+#define PURGE_ALL		0x000f
+
 /*
  * cp210x_get_config
  * Reads from the CP210x configuration registers
@@ -310,7 +333,7 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
 		unsigned int *data, int size)
 {
 	struct usb_serial *serial = port->serial;
-	struct cp210x_serial_private *spriv = usb_get_serial_data(serial);
+	struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
 	__le32 *buf;
 	int result, i, length;
 
@@ -324,7 +347,7 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
 	/* Issue the request, attempting to read 'size' bytes */
 	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 				request, REQTYPE_INTERFACE_TO_HOST, 0x0000,
-				spriv->bInterfaceNumber, buf, size,
+				port_priv->bInterfaceNumber, buf, size,
 				USB_CTRL_GET_TIMEOUT);
 
 	/* Convert data into an array of integers */
@@ -355,7 +378,7 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
 		unsigned int *data, int size)
 {
 	struct usb_serial *serial = port->serial;
-	struct cp210x_serial_private *spriv = usb_get_serial_data(serial);
+	struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
 	__le32 *buf;
 	int result, i, length;
 
@@ -374,13 +397,13 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
 		result = usb_control_msg(serial->dev,
 				usb_sndctrlpipe(serial->dev, 0),
 				request, REQTYPE_HOST_TO_INTERFACE, 0x0000,
-				spriv->bInterfaceNumber, buf, size,
+				port_priv->bInterfaceNumber, buf, size,
 				USB_CTRL_SET_TIMEOUT);
 	} else {
 		result = usb_control_msg(serial->dev,
 				usb_sndctrlpipe(serial->dev, 0),
 				request, REQTYPE_HOST_TO_INTERFACE, data[0],
-				spriv->bInterfaceNumber, NULL, 0,
+				port_priv->bInterfaceNumber, NULL, 0,
 				USB_CTRL_SET_TIMEOUT);
 	}
 
@@ -410,6 +433,60 @@ static inline int cp210x_set_config_single(struct usb_serial_port *port,
 }
 
 /*
+ * Detect CP2108 GET_LINE_CTL bug and activate workaround.
+ * Write a known good value 0x800, read it back.
+ * If it comes back swapped the bug is detected.
+ * Preserve the original register value.
+ */
+static int cp210x_detect_swapped_line_ctl(struct usb_serial_port *port)
+{
+	struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
+	unsigned int line_ctl_save;
+	unsigned int line_ctl_test;
+	int err;
+
+	err = cp210x_get_config(port, CP210X_GET_LINE_CTL, &line_ctl_save, 2);
+	if (err)
+		return err;
+
+	line_ctl_test = 0x800;
+	err = cp210x_set_config(port, CP210X_SET_LINE_CTL, &line_ctl_test, 2);
+	if (err)
+		return err;
+
+	err = cp210x_get_config(port, CP210X_GET_LINE_CTL, &line_ctl_test, 2);
+	if (err)
+		return err;
+
+	if (line_ctl_test == 8) {
+		port_priv->has_swapped_line_ctl = true;
+		line_ctl_save = swab16((u16)line_ctl_save);
+	}
+
+	return cp210x_set_config(port, CP210X_SET_LINE_CTL, &line_ctl_save, 2);
+}
+
+/*
+ * Must always be called instead of cp210x_get_config(CP210X_GET_LINE_CTL)
+ * to workaround cp2108 bug and get correct value.
+ */
+static int cp210x_get_line_ctl(struct usb_serial_port *port, unsigned int *ctl)
+{
+	struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
+	int err;
+
+	err = cp210x_get_config(port, CP210X_GET_LINE_CTL, ctl, 2);
+	if (err)
+		return err;
+
+	/* Workaround swapped bytes in 16-bit value from CP210X_GET_LINE_CTL */
+	if (port_priv->has_swapped_line_ctl)
+		*ctl = swab16((u16)(*ctl));
+
+	return 0;
+}
+
+/*
  * cp210x_quantise_baudrate
  * Quantises the baud rate as per AN205 Table 1
  */
@@ -474,11 +551,63 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 static void cp210x_close(struct usb_serial_port *port)
 {
+	unsigned int purge_ctl;
+
 	usb_serial_generic_close(port);
+
+	/* Clear both queues; cp2108 needs this to avoid an occasional hang */
+	purge_ctl = PURGE_ALL;
+	cp210x_set_config(port, CP210X_PURGE, &purge_ctl, 2);
+
 	cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE);
 }
 
 /*
+ * Read how many bytes are waiting in the TX queue.
+ */
+static int cp210x_get_tx_queue_byte_count(struct usb_serial_port *port,
+		u32 *count)
+{
+	struct usb_serial *serial = port->serial;
+	struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
+	struct cp210x_comm_status *sts;
+	int result;
+
+	sts = kmalloc(sizeof(*sts), GFP_KERNEL);
+	if (!sts)
+		return -ENOMEM;
+
+	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+			CP210X_GET_COMM_STATUS, REQTYPE_INTERFACE_TO_HOST,
+			0, port_priv->bInterfaceNumber, sts, sizeof(*sts),
+			USB_CTRL_GET_TIMEOUT);
+	if (result == sizeof(*sts)) {
+		*count = le32_to_cpu(sts->ulAmountInOutQueue);
+		result = 0;
+	} else {
+		dev_err(&port->dev, "failed to get comm status: %d\n", result);
+		if (result >= 0)
+			result = -EPROTO;
+	}
+
+	kfree(sts);
+
+	return result;
+}
+
+static bool cp210x_tx_empty(struct usb_serial_port *port)
+{
+	int err;
+	u32 count;
+
+	err = cp210x_get_tx_queue_byte_count(port, &count);
+	if (err)
+		return true;
+
+	return !count;
+}
+
+/*
  * cp210x_get_termios
  * Reads the baud rate, data bits, parity, stop bits and flow control mode
  * from the device, corrects any unsupported values, and configures the
@@ -519,7 +648,7 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 
 	cflag = *cflagp;
 
-	cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+	cp210x_get_line_ctl(port, &bits);
 	cflag &= ~CSIZE;
 	switch (bits & BITS_DATA_MASK) {
 	case BITS_DATA_5:
@@ -687,7 +816,7 @@ static void cp210x_set_termios(struct tty_struct *tty,
 
 	/* If the number of data bits is to be updated */
 	if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
-		cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+		cp210x_get_line_ctl(port, &bits);
 		bits &= ~BITS_DATA_MASK;
 		switch (cflag & CSIZE) {
 		case CS5:
@@ -721,7 +850,7 @@ static void cp210x_set_termios(struct tty_struct *tty,
 
 	if ((cflag     & (PARENB|PARODD|CMSPAR)) !=
 	    (old_cflag & (PARENB|PARODD|CMSPAR))) {
-		cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+		cp210x_get_line_ctl(port, &bits);
 		bits &= ~BITS_PARITY_MASK;
 		if (cflag & PARENB) {
 			if (cflag & CMSPAR) {
@@ -747,7 +876,7 @@ static void cp210x_set_termios(struct tty_struct *tty,
 	}
 
 	if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
-		cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
+		cp210x_get_line_ctl(port, &bits);
 		bits &= ~BITS_STOP_MASK;
 		if (cflag & CSTOPB) {
 			bits |= BITS_STOP_2;
@@ -862,29 +991,39 @@ static void cp210x_break_ctl(struct tty_struct *tty, int break_state)
 	cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
 }
 
-static int cp210x_startup(struct usb_serial *serial)
+static int cp210x_port_probe(struct usb_serial_port *port)
 {
+	struct usb_serial *serial = port->serial;
 	struct usb_host_interface *cur_altsetting;
-	struct cp210x_serial_private *spriv;
+	struct cp210x_port_private *port_priv;
+	int ret;
 
-	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
-	if (!spriv)
+	port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);
+	if (!port_priv)
 		return -ENOMEM;
 
 	cur_altsetting = serial->interface->cur_altsetting;
-	spriv->bInterfaceNumber = cur_altsetting->desc.bInterfaceNumber;
+	port_priv->bInterfaceNumber = cur_altsetting->desc.bInterfaceNumber;
+
+	usb_set_serial_port_data(port, port_priv);
 
-	usb_set_serial_data(serial, spriv);
+	ret = cp210x_detect_swapped_line_ctl(port);
+	if (ret) {
+		kfree(port_priv);
+		return ret;
+	}
 
 	return 0;
 }
 
-static void cp210x_release(struct usb_serial *serial)
+static int cp210x_port_remove(struct usb_serial_port *port)
 {
-	struct cp210x_serial_private *spriv;
+	struct cp210x_port_private *port_priv;
+
+	port_priv = usb_get_serial_port_data(port);
+	kfree(port_priv);
 
-	spriv = usb_get_serial_data(serial);
-	kfree(spriv);
+	return 0;
 }
 
 module_usb_serial_driver(serial_drivers, id_table);
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index c0866971db2b..f49327d20ee8 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -1046,9 +1046,8 @@ static void edge_close(struct usb_serial_port *port)
 
 	edge_port->closePending = true;
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPChase))) {
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPChase) {
 		/* flush and chase */
 		edge_port->chaseResponsePending = true;
 
@@ -1061,9 +1060,8 @@ static void edge_close(struct usb_serial_port *port)
 			edge_port->chaseResponsePending = false;
 	}
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPClose))) {
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPClose) {
 	       /* close the port */
 		dev_dbg(&port->dev, "%s - Sending IOSP_CMD_CLOSE_PORT\n", __func__);
 		send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0);
@@ -1612,9 +1610,8 @@ static void edge_break(struct tty_struct *tty, int break_state)
 	struct edgeport_serial *edge_serial = usb_get_serial_data(port->serial);
 	int status;
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPChase))) {
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPChase) {
 		/* flush and chase */
 		edge_port->chaseResponsePending = true;
 
@@ -1628,9 +1625,8 @@ static void edge_break(struct tty_struct *tty, int break_state)
 		}
 	}
 
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) {
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPSetClrBreak) {
 		if (break_state == -1) {
 			dev_dbg(&port->dev, "%s - Sending IOSP_CMD_SET_BREAK\n", __func__);
 			status = send_iosp_ext_cmd(edge_port,
@@ -2465,9 +2461,8 @@ static void change_port_settings(struct tty_struct *tty,
 		unsigned char stop_char  = STOP_CHAR(tty);
 		unsigned char start_char = START_CHAR(tty);
 
-		if ((!edge_serial->is_epic) ||
-		    ((edge_serial->is_epic) &&
-		     (edge_serial->epic_descriptor.Supports.IOSPSetXChar))) {
+		if (!edge_serial->is_epic ||
+		    edge_serial->epic_descriptor.Supports.IOSPSetXChar) {
 			send_iosp_ext_cmd(edge_port,
 					IOSP_CMD_SET_XON_CHAR, start_char);
 			send_iosp_ext_cmd(edge_port,
@@ -2494,13 +2489,11 @@ static void change_port_settings(struct tty_struct *tty,
 	}
 
 	/* Set flow control to the configured value */
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPSetRxFlow)))
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPSetRxFlow)
 		send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_RX_FLOW, rxFlow);
-	if ((!edge_serial->is_epic) ||
-	    ((edge_serial->is_epic) &&
-	     (edge_serial->epic_descriptor.Supports.IOSPSetTxFlow)))
+	if (!edge_serial->is_epic ||
+	    edge_serial->epic_descriptor.Supports.IOSPSetTxFlow)
 		send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_TX_FLOW, txFlow);
 
 
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 8ac9b55f05af..2c69bfcdacc6 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -635,7 +635,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
 	 * Byte 4 IIR Port 4 (port.number is 3)
 	 * Byte 5 FIFO status for both */
 
-	if (length && length > 5) {
+	if (length > 5) {
 		dev_dbg(&urb->dev->dev, "%s", "Wrong data !!!\n");
 		return;
 	}
diff --git a/drivers/usb/serial/mxu11x0.c b/drivers/usb/serial/mxu11x0.c
new file mode 100644
index 000000000000..e3c3f57c2d82
--- /dev/null
+++ b/drivers/usb/serial/mxu11x0.c
@@ -0,0 +1,986 @@
+/*
+ * USB Moxa UPORT 11x0 Serial Driver
+ *
+ * Copyright (C) 2007 MOXA Technologies Co., Ltd.
+ * Copyright (C) 2015 Mathieu Othacehe <m.othacehe@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ *
+ * Supports the following Moxa USB to serial converters:
+ *  UPort 1110,  1 port RS-232 USB to Serial Hub.
+ *  UPort 1130,  1 port RS-422/485 USB to Serial Hub.
+ *  UPort 1130I, 1 port RS-422/485 USB to Serial Hub with isolation
+ *    protection.
+ *  UPort 1150,  1 port RS-232/422/485 USB to Serial Hub.
+ *  UPort 1150I, 1 port RS-232/422/485 USB to Serial Hub with isolation
+ *  protection.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+
+/* Vendor and product ids */
+#define MXU1_VENDOR_ID				0x110a
+#define MXU1_1110_PRODUCT_ID			0x1110
+#define MXU1_1130_PRODUCT_ID			0x1130
+#define MXU1_1150_PRODUCT_ID			0x1150
+#define MXU1_1151_PRODUCT_ID			0x1151
+#define MXU1_1131_PRODUCT_ID			0x1131
+
+/* Commands */
+#define MXU1_GET_VERSION			0x01
+#define MXU1_GET_PORT_STATUS			0x02
+#define MXU1_GET_PORT_DEV_INFO			0x03
+#define MXU1_GET_CONFIG				0x04
+#define MXU1_SET_CONFIG				0x05
+#define MXU1_OPEN_PORT				0x06
+#define MXU1_CLOSE_PORT				0x07
+#define MXU1_START_PORT				0x08
+#define MXU1_STOP_PORT				0x09
+#define MXU1_TEST_PORT				0x0A
+#define MXU1_PURGE_PORT				0x0B
+#define MXU1_RESET_EXT_DEVICE			0x0C
+#define MXU1_GET_OUTQUEUE			0x0D
+#define MXU1_WRITE_DATA				0x80
+#define MXU1_READ_DATA				0x81
+#define MXU1_REQ_TYPE_CLASS			0x82
+
+/* Module identifiers */
+#define MXU1_I2C_PORT				0x01
+#define MXU1_IEEE1284_PORT			0x02
+#define MXU1_UART1_PORT				0x03
+#define MXU1_UART2_PORT				0x04
+#define MXU1_RAM_PORT				0x05
+
+/* Modem status */
+#define MXU1_MSR_DELTA_CTS			0x01
+#define MXU1_MSR_DELTA_DSR			0x02
+#define MXU1_MSR_DELTA_RI			0x04
+#define MXU1_MSR_DELTA_CD			0x08
+#define MXU1_MSR_CTS				0x10
+#define MXU1_MSR_DSR				0x20
+#define MXU1_MSR_RI				0x40
+#define MXU1_MSR_CD				0x80
+#define MXU1_MSR_DELTA_MASK			0x0F
+#define MXU1_MSR_MASK				0xF0
+
+/* Line status */
+#define MXU1_LSR_OVERRUN_ERROR			0x01
+#define MXU1_LSR_PARITY_ERROR			0x02
+#define MXU1_LSR_FRAMING_ERROR			0x04
+#define MXU1_LSR_BREAK				0x08
+#define MXU1_LSR_ERROR				0x0F
+#define MXU1_LSR_RX_FULL			0x10
+#define MXU1_LSR_TX_EMPTY			0x20
+
+/* Modem control */
+#define MXU1_MCR_LOOP				0x04
+#define MXU1_MCR_DTR				0x10
+#define MXU1_MCR_RTS				0x20
+
+/* Mask settings */
+#define MXU1_UART_ENABLE_RTS_IN			0x0001
+#define MXU1_UART_DISABLE_RTS			0x0002
+#define MXU1_UART_ENABLE_PARITY_CHECKING	0x0008
+#define MXU1_UART_ENABLE_DSR_OUT		0x0010
+#define MXU1_UART_ENABLE_CTS_OUT		0x0020
+#define MXU1_UART_ENABLE_X_OUT			0x0040
+#define MXU1_UART_ENABLE_XA_OUT			0x0080
+#define MXU1_UART_ENABLE_X_IN			0x0100
+#define MXU1_UART_ENABLE_DTR_IN			0x0800
+#define MXU1_UART_DISABLE_DTR			0x1000
+#define MXU1_UART_ENABLE_MS_INTS		0x2000
+#define MXU1_UART_ENABLE_AUTO_START_DMA		0x4000
+#define MXU1_UART_SEND_BREAK_SIGNAL		0x8000
+
+/* Parity */
+#define MXU1_UART_NO_PARITY			0x00
+#define MXU1_UART_ODD_PARITY			0x01
+#define MXU1_UART_EVEN_PARITY			0x02
+#define MXU1_UART_MARK_PARITY			0x03
+#define MXU1_UART_SPACE_PARITY			0x04
+
+/* Stop bits */
+#define MXU1_UART_1_STOP_BITS			0x00
+#define MXU1_UART_1_5_STOP_BITS			0x01
+#define MXU1_UART_2_STOP_BITS			0x02
+
+/* Bits per character */
+#define MXU1_UART_5_DATA_BITS			0x00
+#define MXU1_UART_6_DATA_BITS			0x01
+#define MXU1_UART_7_DATA_BITS			0x02
+#define MXU1_UART_8_DATA_BITS			0x03
+
+/* Operation modes */
+#define MXU1_UART_232				0x00
+#define MXU1_UART_485_RECEIVER_DISABLED		0x01
+#define MXU1_UART_485_RECEIVER_ENABLED		0x02
+
+/* Pipe transfer mode and timeout */
+#define MXU1_PIPE_MODE_CONTINUOUS		0x01
+#define MXU1_PIPE_MODE_MASK			0x03
+#define MXU1_PIPE_TIMEOUT_MASK			0x7C
+#define MXU1_PIPE_TIMEOUT_ENABLE		0x80
+
+/* Config struct */
+struct mxu1_uart_config {
+	__be16	wBaudRate;
+	__be16	wFlags;
+	u8	bDataBits;
+	u8	bParity;
+	u8	bStopBits;
+	char	cXon;
+	char	cXoff;
+	u8	bUartMode;
+} __packed;
+
+/* Purge modes */
+#define MXU1_PURGE_OUTPUT			0x00
+#define MXU1_PURGE_INPUT			0x80
+
+/* Read/Write data */
+#define MXU1_RW_DATA_ADDR_SFR			0x10
+#define MXU1_RW_DATA_ADDR_IDATA			0x20
+#define MXU1_RW_DATA_ADDR_XDATA			0x30
+#define MXU1_RW_DATA_ADDR_CODE			0x40
+#define MXU1_RW_DATA_ADDR_GPIO			0x50
+#define MXU1_RW_DATA_ADDR_I2C			0x60
+#define MXU1_RW_DATA_ADDR_FLASH			0x70
+#define MXU1_RW_DATA_ADDR_DSP			0x80
+
+#define MXU1_RW_DATA_UNSPECIFIED		0x00
+#define MXU1_RW_DATA_BYTE			0x01
+#define MXU1_RW_DATA_WORD			0x02
+#define MXU1_RW_DATA_DOUBLE_WORD		0x04
+
+struct mxu1_write_data_bytes {
+	u8	bAddrType;
+	u8	bDataType;
+	u8	bDataCounter;
+	__be16	wBaseAddrHi;
+	__be16	wBaseAddrLo;
+	u8	bData[0];
+} __packed;
+
+/* Interrupt codes */
+#define MXU1_CODE_HARDWARE_ERROR		0xFF
+#define MXU1_CODE_DATA_ERROR			0x03
+#define MXU1_CODE_MODEM_STATUS			0x04
+
+static inline int mxu1_get_func_from_code(unsigned char code)
+{
+	return code & 0x0f;
+}
+
+/* Download firmware max packet size */
+#define MXU1_DOWNLOAD_MAX_PACKET_SIZE		64
+
+/* Firmware image header */
+struct mxu1_firmware_header {
+	__le16 wLength;
+	u8 bCheckSum;
+} __packed;
+
+#define MXU1_UART_BASE_ADDR	    0xFFA0
+#define MXU1_UART_OFFSET_MCR	    0x0004
+
+#define MXU1_BAUD_BASE              923077
+
+#define MXU1_TRANSFER_TIMEOUT	    2
+#define MXU1_DOWNLOAD_TIMEOUT       1000
+#define MXU1_DEFAULT_CLOSING_WAIT   4000 /* in .01 secs */
+
+struct mxu1_port {
+	u8 msr;
+	u8 mcr;
+	u8 uart_mode;
+	spinlock_t spinlock; /* Protects msr */
+	struct mutex mutex; /* Protects mcr */
+	bool send_break;
+};
+
+struct mxu1_device {
+	u16 mxd_model;
+};
+
+static const struct usb_device_id mxu1_idtable[] = {
+	{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1110_PRODUCT_ID) },
+	{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1130_PRODUCT_ID) },
+	{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1150_PRODUCT_ID) },
+	{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1151_PRODUCT_ID) },
+	{ USB_DEVICE(MXU1_VENDOR_ID, MXU1_1131_PRODUCT_ID) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, mxu1_idtable);
+
+/* Write the given buffer out to the control pipe.  */
+static int mxu1_send_ctrl_data_urb(struct usb_serial *serial,
+				   u8 request,
+				   u16 value, u16 index,
+				   void *data, size_t size)
+{
+	int status;
+
+	status = usb_control_msg(serial->dev,
+				 usb_sndctrlpipe(serial->dev, 0),
+				 request,
+				 (USB_DIR_OUT | USB_TYPE_VENDOR |
+				  USB_RECIP_DEVICE), value, index,
+				 data, size,
+				 USB_CTRL_SET_TIMEOUT);
+	if (status < 0) {
+		dev_err(&serial->interface->dev,
+			"%s - usb_control_msg failed: %d\n",
+			__func__, status);
+		return status;
+	}
+
+	if (status != size) {
+		dev_err(&serial->interface->dev,
+			"%s - short write (%d / %zd)\n",
+			__func__, status, size);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/* Send a vendor request without any data */
+static int mxu1_send_ctrl_urb(struct usb_serial *serial,
+			      u8 request, u16 value, u16 index)
+{
+	return mxu1_send_ctrl_data_urb(serial, request, value, index,
+				       NULL, 0);
+}
+
+static int mxu1_download_firmware(struct usb_serial *serial,
+				  const struct firmware *fw_p)
+{
+	int status = 0;
+	int buffer_size;
+	int pos;
+	int len;
+	int done;
+	u8 cs = 0;
+	u8 *buffer;
+	struct usb_device *dev = serial->dev;
+	struct mxu1_firmware_header *header;
+	unsigned int pipe;
+
+	pipe = usb_sndbulkpipe(dev, serial->port[0]->bulk_out_endpointAddress);
+
+	buffer_size = fw_p->size + sizeof(*header);
+	buffer = kmalloc(buffer_size, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
+	memcpy(buffer, fw_p->data, fw_p->size);
+	memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size);
+
+	for (pos = sizeof(*header); pos < buffer_size; pos++)
+		cs = (u8)(cs + buffer[pos]);
+
+	header = (struct mxu1_firmware_header *)buffer;
+	header->wLength = cpu_to_le16(buffer_size - sizeof(*header));
+	header->bCheckSum = cs;
+
+	dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__);
+
+	for (pos = 0; pos < buffer_size; pos += done) {
+		len = min(buffer_size - pos, MXU1_DOWNLOAD_MAX_PACKET_SIZE);
+
+		status = usb_bulk_msg(dev, pipe, buffer + pos, len, &done,
+				MXU1_DOWNLOAD_TIMEOUT);
+		if (status)
+			break;
+	}
+
+	kfree(buffer);
+
+	if (status) {
+		dev_err(&dev->dev, "failed to download firmware: %d\n", status);
+		return status;
+	}
+
+	msleep_interruptible(100);
+	usb_reset_device(dev);
+
+	dev_dbg(&dev->dev, "%s - download successful\n", __func__);
+
+	return 0;
+}
+
+static int mxu1_port_probe(struct usb_serial_port *port)
+{
+	struct mxu1_port *mxport;
+	struct mxu1_device *mxdev;
+
+	if (!port->interrupt_in_urb) {
+		dev_err(&port->dev, "no interrupt urb\n");
+		return -ENODEV;
+	}
+
+	mxport = kzalloc(sizeof(struct mxu1_port), GFP_KERNEL);
+	if (!mxport)
+		return -ENOMEM;
+
+	spin_lock_init(&mxport->spinlock);
+	mutex_init(&mxport->mutex);
+
+	mxdev = usb_get_serial_data(port->serial);
+
+	switch (mxdev->mxd_model) {
+	case MXU1_1110_PRODUCT_ID:
+	case MXU1_1150_PRODUCT_ID:
+	case MXU1_1151_PRODUCT_ID:
+		mxport->uart_mode = MXU1_UART_232;
+		break;
+	case MXU1_1130_PRODUCT_ID:
+	case MXU1_1131_PRODUCT_ID:
+		mxport->uart_mode = MXU1_UART_485_RECEIVER_DISABLED;
+		break;
+	}
+
+	usb_set_serial_port_data(port, mxport);
+
+	port->port.closing_wait =
+			msecs_to_jiffies(MXU1_DEFAULT_CLOSING_WAIT * 10);
+	port->port.drain_delay = 1;
+
+	return 0;
+}
+
+static int mxu1_startup(struct usb_serial *serial)
+{
+	struct mxu1_device *mxdev;
+	struct usb_device *dev = serial->dev;
+	struct usb_host_interface *cur_altsetting;
+	char fw_name[32];
+	const struct firmware *fw_p = NULL;
+	int err;
+
+	dev_dbg(&serial->interface->dev, "%s - product 0x%04X, num configurations %d, configuration value %d\n",
+		__func__, le16_to_cpu(dev->descriptor.idProduct),
+		dev->descriptor.bNumConfigurations,
+		dev->actconfig->desc.bConfigurationValue);
+
+	/* create device structure */
+	mxdev = kzalloc(sizeof(struct mxu1_device), GFP_KERNEL);
+	if (!mxdev)
+		return -ENOMEM;
+
+	usb_set_serial_data(serial, mxdev);
+
+	mxdev->mxd_model = le16_to_cpu(dev->descriptor.idProduct);
+
+	cur_altsetting = serial->interface->cur_altsetting;
+
+	/* if we have only 1 configuration, download firmware */
+	if (cur_altsetting->desc.bNumEndpoints == 1) {
+
+		snprintf(fw_name,
+			 sizeof(fw_name),
+			 "moxa/moxa-%04x.fw",
+			 mxdev->mxd_model);
+
+		err = request_firmware(&fw_p, fw_name, &serial->interface->dev);
+		if (err) {
+			dev_err(&serial->interface->dev, "failed to request firmware: %d\n",
+				err);
+			goto err_free_mxdev;
+		}
+
+		err = mxu1_download_firmware(serial, fw_p);
+		if (err)
+			goto err_release_firmware;
+
+		/* device is being reset */
+		err = -ENODEV;
+		goto err_release_firmware;
+	}
+
+	return 0;
+
+err_release_firmware:
+	release_firmware(fw_p);
+err_free_mxdev:
+	kfree(mxdev);
+
+	return err;
+}
+
+static int mxu1_write_byte(struct usb_serial_port *port, u32 addr,
+			   u8 mask, u8 byte)
+{
+	int status;
+	size_t size;
+	struct mxu1_write_data_bytes *data;
+
+	dev_dbg(&port->dev, "%s - addr 0x%08X, mask 0x%02X, byte 0x%02X\n",
+		__func__, addr, mask, byte);
+
+	size = sizeof(struct mxu1_write_data_bytes) + 2;
+	data = kzalloc(size, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->bAddrType = MXU1_RW_DATA_ADDR_XDATA;
+	data->bDataType = MXU1_RW_DATA_BYTE;
+	data->bDataCounter = 1;
+	data->wBaseAddrHi = cpu_to_be16(addr >> 16);
+	data->wBaseAddrLo = cpu_to_be16(addr);
+	data->bData[0] = mask;
+	data->bData[1] = byte;
+
+	status = mxu1_send_ctrl_data_urb(port->serial, MXU1_WRITE_DATA, 0,
+					 MXU1_RAM_PORT, data, size);
+	if (status < 0)
+		dev_err(&port->dev, "%s - failed: %d\n", __func__, status);
+
+	kfree(data);
+
+	return status;
+}
+
+static int mxu1_set_mcr(struct usb_serial_port *port, unsigned int mcr)
+{
+	int status;
+
+	status = mxu1_write_byte(port,
+				 MXU1_UART_BASE_ADDR + MXU1_UART_OFFSET_MCR,
+				 MXU1_MCR_RTS | MXU1_MCR_DTR | MXU1_MCR_LOOP,
+				 mcr);
+	return status;
+}
+
+static void mxu1_set_termios(struct tty_struct *tty,
+			     struct usb_serial_port *port,
+			     struct ktermios *old_termios)
+{
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+	struct mxu1_uart_config *config;
+	tcflag_t cflag, iflag;
+	speed_t baud;
+	int status;
+	unsigned int mcr;
+
+	cflag = tty->termios.c_cflag;
+	iflag = tty->termios.c_iflag;
+
+	if (old_termios &&
+	    !tty_termios_hw_change(&tty->termios, old_termios) &&
+	    tty->termios.c_iflag == old_termios->c_iflag) {
+		dev_dbg(&port->dev, "%s - nothing to change\n", __func__);
+		return;
+	}
+
+	dev_dbg(&port->dev,
+		"%s - cflag 0x%08x, iflag 0x%08x\n", __func__, cflag, iflag);
+
+	if (old_termios) {
+		dev_dbg(&port->dev, "%s - old cflag 0x%08x, old iflag 0x%08x\n",
+			__func__,
+			old_termios->c_cflag,
+			old_termios->c_iflag);
+	}
+
+	config = kzalloc(sizeof(*config), GFP_KERNEL);
+	if (!config)
+		return;
+
+	/* these flags must be set */
+	config->wFlags |= MXU1_UART_ENABLE_MS_INTS;
+	config->wFlags |= MXU1_UART_ENABLE_AUTO_START_DMA;
+	if (mxport->send_break)
+		config->wFlags |= MXU1_UART_SEND_BREAK_SIGNAL;
+	config->bUartMode = mxport->uart_mode;
+
+	switch (C_CSIZE(tty)) {
+	case CS5:
+		config->bDataBits = MXU1_UART_5_DATA_BITS;
+		break;
+	case CS6:
+		config->bDataBits = MXU1_UART_6_DATA_BITS;
+		break;
+	case CS7:
+		config->bDataBits = MXU1_UART_7_DATA_BITS;
+		break;
+	default:
+	case CS8:
+		config->bDataBits = MXU1_UART_8_DATA_BITS;
+		break;
+	}
+
+	if (C_PARENB(tty)) {
+		config->wFlags |= MXU1_UART_ENABLE_PARITY_CHECKING;
+		if (C_CMSPAR(tty)) {
+			if (C_PARODD(tty))
+				config->bParity = MXU1_UART_MARK_PARITY;
+			else
+				config->bParity = MXU1_UART_SPACE_PARITY;
+		} else {
+			if (C_PARODD(tty))
+				config->bParity = MXU1_UART_ODD_PARITY;
+			else
+				config->bParity = MXU1_UART_EVEN_PARITY;
+		}
+	} else {
+		config->bParity = MXU1_UART_NO_PARITY;
+	}
+
+	if (C_CSTOPB(tty))
+		config->bStopBits = MXU1_UART_2_STOP_BITS;
+	else
+		config->bStopBits = MXU1_UART_1_STOP_BITS;
+
+	if (C_CRTSCTS(tty)) {
+		/* RTS flow control must be off to drop RTS for baud rate B0 */
+		if (C_BAUD(tty) != B0)
+			config->wFlags |= MXU1_UART_ENABLE_RTS_IN;
+		config->wFlags |= MXU1_UART_ENABLE_CTS_OUT;
+	}
+
+	if (I_IXOFF(tty) || I_IXON(tty)) {
+		config->cXon  = START_CHAR(tty);
+		config->cXoff = STOP_CHAR(tty);
+
+		if (I_IXOFF(tty))
+			config->wFlags |= MXU1_UART_ENABLE_X_IN;
+
+		if (I_IXON(tty))
+			config->wFlags |= MXU1_UART_ENABLE_X_OUT;
+	}
+
+	baud = tty_get_baud_rate(tty);
+	if (!baud)
+		baud = 9600;
+	config->wBaudRate = MXU1_BAUD_BASE / baud;
+
+	dev_dbg(&port->dev, "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n",
+		__func__, baud, config->wBaudRate, config->wFlags,
+		config->bDataBits, config->bParity, config->bStopBits,
+		config->cXon, config->cXoff, config->bUartMode);
+
+	cpu_to_be16s(&config->wBaudRate);
+	cpu_to_be16s(&config->wFlags);
+
+	status = mxu1_send_ctrl_data_urb(port->serial, MXU1_SET_CONFIG, 0,
+					 MXU1_UART1_PORT, config,
+					 sizeof(*config));
+	if (status)
+		dev_err(&port->dev, "cannot set config: %d\n", status);
+
+	mutex_lock(&mxport->mutex);
+	mcr = mxport->mcr;
+
+	if (C_BAUD(tty) == B0)
+		mcr &= ~(MXU1_MCR_DTR | MXU1_MCR_RTS);
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
+		mcr |= MXU1_MCR_DTR | MXU1_MCR_RTS;
+
+	status = mxu1_set_mcr(port, mcr);
+	if (status)
+		dev_err(&port->dev, "cannot set modem control: %d\n", status);
+	else
+		mxport->mcr = mcr;
+
+	mutex_unlock(&mxport->mutex);
+
+	kfree(config);
+}
+
+static int mxu1_get_serial_info(struct usb_serial_port *port,
+				struct serial_struct __user *ret_arg)
+{
+	struct serial_struct ret_serial;
+	unsigned cwait;
+
+	if (!ret_arg)
+		return -EFAULT;
+
+	cwait = port->port.closing_wait;
+	if (cwait != ASYNC_CLOSING_WAIT_NONE)
+		cwait = jiffies_to_msecs(cwait) / 10;
+
+	memset(&ret_serial, 0, sizeof(ret_serial));
+
+	ret_serial.type = PORT_16550A;
+	ret_serial.line = port->minor;
+	ret_serial.port = 0;
+	ret_serial.xmit_fifo_size = port->bulk_out_size;
+	ret_serial.baud_base = MXU1_BAUD_BASE;
+	ret_serial.close_delay = 5*HZ;
+	ret_serial.closing_wait = cwait;
+
+	if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
+		return -EFAULT;
+
+	return 0;
+}
+
+
+static int mxu1_set_serial_info(struct usb_serial_port *port,
+				struct serial_struct __user *new_arg)
+{
+	struct serial_struct new_serial;
+	unsigned cwait;
+
+	if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
+		return -EFAULT;
+
+	cwait = new_serial.closing_wait;
+	if (cwait != ASYNC_CLOSING_WAIT_NONE)
+		cwait = msecs_to_jiffies(10 * new_serial.closing_wait);
+
+	port->port.closing_wait = cwait;
+
+	return 0;
+}
+
+static int mxu1_ioctl(struct tty_struct *tty,
+		      unsigned int cmd, unsigned long arg)
+{
+	struct usb_serial_port *port = tty->driver_data;
+
+	switch (cmd) {
+	case TIOCGSERIAL:
+		return mxu1_get_serial_info(port,
+					    (struct serial_struct __user *)arg);
+	case TIOCSSERIAL:
+		return mxu1_set_serial_info(port,
+					    (struct serial_struct __user *)arg);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+static int mxu1_tiocmget(struct tty_struct *tty)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+	unsigned int result;
+	unsigned int msr;
+	unsigned int mcr;
+	unsigned long flags;
+
+	mutex_lock(&mxport->mutex);
+	spin_lock_irqsave(&mxport->spinlock, flags);
+
+	msr = mxport->msr;
+	mcr = mxport->mcr;
+
+	spin_unlock_irqrestore(&mxport->spinlock, flags);
+	mutex_unlock(&mxport->mutex);
+
+	result = ((mcr & MXU1_MCR_DTR)	? TIOCM_DTR	: 0) |
+		 ((mcr & MXU1_MCR_RTS)	? TIOCM_RTS	: 0) |
+		 ((mcr & MXU1_MCR_LOOP) ? TIOCM_LOOP	: 0) |
+		 ((msr & MXU1_MSR_CTS)	? TIOCM_CTS	: 0) |
+		 ((msr & MXU1_MSR_CD)	? TIOCM_CAR	: 0) |
+		 ((msr & MXU1_MSR_RI)	? TIOCM_RI	: 0) |
+		 ((msr & MXU1_MSR_DSR)	? TIOCM_DSR	: 0);
+
+	dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
+
+	return result;
+}
+
+static int mxu1_tiocmset(struct tty_struct *tty,
+			 unsigned int set, unsigned int clear)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+	int err;
+	unsigned int mcr;
+
+	mutex_lock(&mxport->mutex);
+	mcr = mxport->mcr;
+
+	if (set & TIOCM_RTS)
+		mcr |= MXU1_MCR_RTS;
+	if (set & TIOCM_DTR)
+		mcr |= MXU1_MCR_DTR;
+	if (set & TIOCM_LOOP)
+		mcr |= MXU1_MCR_LOOP;
+
+	if (clear & TIOCM_RTS)
+		mcr &= ~MXU1_MCR_RTS;
+	if (clear & TIOCM_DTR)
+		mcr &= ~MXU1_MCR_DTR;
+	if (clear & TIOCM_LOOP)
+		mcr &= ~MXU1_MCR_LOOP;
+
+	err = mxu1_set_mcr(port, mcr);
+	if (!err)
+		mxport->mcr = mcr;
+
+	mutex_unlock(&mxport->mutex);
+
+	return err;
+}
+
+static void mxu1_break(struct tty_struct *tty, int break_state)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+
+	if (break_state == -1)
+		mxport->send_break = true;
+	else
+		mxport->send_break = false;
+
+	mxu1_set_termios(tty, port, NULL);
+}
+
+static int mxu1_open(struct tty_struct *tty, struct usb_serial_port *port)
+{
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+	struct usb_serial *serial = port->serial;
+	int status;
+	u16 open_settings;
+
+	open_settings = (MXU1_PIPE_MODE_CONTINUOUS |
+			 MXU1_PIPE_TIMEOUT_ENABLE |
+			 (MXU1_TRANSFER_TIMEOUT << 2));
+
+	mxport->msr = 0;
+
+	status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+	if (status) {
+		dev_err(&port->dev, "failed to submit interrupt urb: %d\n",
+			status);
+		return status;
+	}
+
+	if (tty)
+		mxu1_set_termios(tty, port, NULL);
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_OPEN_PORT,
+				    open_settings, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot send open command: %d\n", status);
+		goto unlink_int_urb;
+	}
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_START_PORT,
+				    0, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot send start command: %d\n", status);
+		goto unlink_int_urb;
+	}
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_PURGE_PORT,
+				    MXU1_PURGE_INPUT, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot clear input buffers: %d\n",
+			status);
+
+		goto unlink_int_urb;
+	}
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_PURGE_PORT,
+				    MXU1_PURGE_OUTPUT, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot clear output buffers: %d\n",
+			status);
+
+		goto unlink_int_urb;
+	}
+
+	/*
+	 * reset the data toggle on the bulk endpoints to work around bug in
+	 * host controllers where things get out of sync some times
+	 */
+	usb_clear_halt(serial->dev, port->write_urb->pipe);
+	usb_clear_halt(serial->dev, port->read_urb->pipe);
+
+	if (tty)
+		mxu1_set_termios(tty, port, NULL);
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_OPEN_PORT,
+				    open_settings, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot send open command: %d\n", status);
+		goto unlink_int_urb;
+	}
+
+	status = mxu1_send_ctrl_urb(serial, MXU1_START_PORT,
+				    0, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "cannot send start command: %d\n", status);
+		goto unlink_int_urb;
+	}
+
+	status = usb_serial_generic_open(tty, port);
+	if (status)
+		goto unlink_int_urb;
+
+	return 0;
+
+unlink_int_urb:
+	usb_kill_urb(port->interrupt_in_urb);
+
+	return status;
+}
+
+static void mxu1_close(struct usb_serial_port *port)
+{
+	int status;
+
+	usb_serial_generic_close(port);
+	usb_kill_urb(port->interrupt_in_urb);
+
+	status = mxu1_send_ctrl_urb(port->serial, MXU1_CLOSE_PORT,
+				    0, MXU1_UART1_PORT);
+	if (status) {
+		dev_err(&port->dev, "failed to send close port command: %d\n",
+			status);
+	}
+}
+
+static void mxu1_handle_new_msr(struct usb_serial_port *port, u8 msr)
+{
+	struct mxu1_port *mxport = usb_get_serial_port_data(port);
+	struct async_icount *icount;
+	unsigned long flags;
+
+	dev_dbg(&port->dev, "%s - msr 0x%02X\n", __func__, msr);
+
+	spin_lock_irqsave(&mxport->spinlock, flags);
+	mxport->msr = msr & MXU1_MSR_MASK;
+	spin_unlock_irqrestore(&mxport->spinlock, flags);
+
+	if (msr & MXU1_MSR_DELTA_MASK) {
+		icount = &port->icount;
+		if (msr & MXU1_MSR_DELTA_CTS)
+			icount->cts++;
+		if (msr & MXU1_MSR_DELTA_DSR)
+			icount->dsr++;
+		if (msr & MXU1_MSR_DELTA_CD)
+			icount->dcd++;
+		if (msr & MXU1_MSR_DELTA_RI)
+			icount->rng++;
+
+		wake_up_interruptible(&port->port.delta_msr_wait);
+	}
+}
+
+static void mxu1_interrupt_callback(struct urb *urb)
+{
+	struct usb_serial_port *port = urb->context;
+	unsigned char *data = urb->transfer_buffer;
+	int length = urb->actual_length;
+	int function;
+	int status;
+	u8 msr;
+
+	switch (urb->status) {
+	case 0:
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		dev_dbg(&port->dev, "%s - urb shutting down: %d\n",
+			__func__, urb->status);
+		return;
+	default:
+		dev_dbg(&port->dev, "%s - nonzero urb status: %d\n",
+			__func__, urb->status);
+		goto exit;
+	}
+
+	if (length != 2) {
+		dev_dbg(&port->dev, "%s - bad packet size: %d\n",
+			__func__, length);
+		goto exit;
+	}
+
+	if (data[0] == MXU1_CODE_HARDWARE_ERROR) {
+		dev_err(&port->dev, "hardware error: %d\n", data[1]);
+		goto exit;
+	}
+
+	function = mxu1_get_func_from_code(data[0]);
+
+	dev_dbg(&port->dev, "%s - function %d, data 0x%02X\n",
+		 __func__, function, data[1]);
+
+	switch (function) {
+	case MXU1_CODE_DATA_ERROR:
+		dev_dbg(&port->dev, "%s - DATA ERROR, data 0x%02X\n",
+			 __func__, data[1]);
+		break;
+
+	case MXU1_CODE_MODEM_STATUS:
+		msr = data[1];
+		mxu1_handle_new_msr(port, msr);
+		break;
+
+	default:
+		dev_err(&port->dev, "unknown interrupt code: 0x%02X\n",
+			data[1]);
+		break;
+	}
+
+exit:
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status) {
+		dev_err(&port->dev, "resubmit interrupt urb failed: %d\n",
+			status);
+	}
+}
+
+static struct usb_serial_driver mxu11x0_device = {
+	.driver = {
+		.owner		= THIS_MODULE,
+		.name		= "mxu11x0",
+	},
+	.description		= "MOXA UPort 11x0",
+	.id_table		= mxu1_idtable,
+	.num_ports		= 1,
+	.port_probe             = mxu1_port_probe,
+	.attach			= mxu1_startup,
+	.open			= mxu1_open,
+	.close			= mxu1_close,
+	.ioctl			= mxu1_ioctl,
+	.set_termios		= mxu1_set_termios,
+	.tiocmget		= mxu1_tiocmget,
+	.tiocmset		= mxu1_tiocmset,
+	.tiocmiwait		= usb_serial_generic_tiocmiwait,
+	.get_icount		= usb_serial_generic_get_icount,
+	.break_ctl		= mxu1_break,
+	.read_int_callback	= mxu1_interrupt_callback,
+};
+
+static struct usb_serial_driver *const serial_drivers[] = {
+	&mxu11x0_device, NULL
+};
+
+module_usb_serial_driver(serial_drivers, mxu1_idtable);
+
+MODULE_AUTHOR("Mathieu Othacehe <m.othacehe@gmail.com>");
+MODULE_DESCRIPTION("MOXA UPort 11x0 USB to Serial Hub Driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE("moxa/moxa-1110.fw");
+MODULE_FIRMWARE("moxa/moxa-1130.fw");
+MODULE_FIRMWARE("moxa/moxa-1131.fw");
+MODULE_FIRMWARE("moxa/moxa-1150.fw");
+MODULE_FIRMWARE("moxa/moxa-1151.fw");
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 5c66d3f7a6d0..9ff9404f99d7 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -49,18 +49,18 @@ struct uas_dev_info {
 };
 
 enum {
-	SUBMIT_STATUS_URB	= (1 << 1),
-	ALLOC_DATA_IN_URB	= (1 << 2),
-	SUBMIT_DATA_IN_URB	= (1 << 3),
-	ALLOC_DATA_OUT_URB	= (1 << 4),
-	SUBMIT_DATA_OUT_URB	= (1 << 5),
-	ALLOC_CMD_URB		= (1 << 6),
-	SUBMIT_CMD_URB		= (1 << 7),
-	COMMAND_INFLIGHT        = (1 << 8),
-	DATA_IN_URB_INFLIGHT    = (1 << 9),
-	DATA_OUT_URB_INFLIGHT   = (1 << 10),
-	COMMAND_ABORTED         = (1 << 11),
-	IS_IN_WORK_LIST         = (1 << 12),
+	SUBMIT_STATUS_URB	= BIT(1),
+	ALLOC_DATA_IN_URB	= BIT(2),
+	SUBMIT_DATA_IN_URB	= BIT(3),
+	ALLOC_DATA_OUT_URB	= BIT(4),
+	SUBMIT_DATA_OUT_URB	= BIT(5),
+	ALLOC_CMD_URB		= BIT(6),
+	SUBMIT_CMD_URB		= BIT(7),
+	COMMAND_INFLIGHT        = BIT(8),
+	DATA_IN_URB_INFLIGHT    = BIT(9),
+	DATA_OUT_URB_INFLIGHT   = BIT(10),
+	COMMAND_ABORTED         = BIT(11),
+	IS_IN_WORK_LIST         = BIT(12),
 };
 
 /* Overrides scsi_pointer */
@@ -74,7 +74,7 @@ struct uas_cmd_info {
 
 /* I hate forward declarations, but I actually have a loop */
 static int uas_submit_urbs(struct scsi_cmnd *cmnd,
-				struct uas_dev_info *devinfo, gfp_t gfp);
+				struct uas_dev_info *devinfo);
 static void uas_do_work(struct work_struct *work);
 static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller);
 static void uas_free_streams(struct uas_dev_info *devinfo);
@@ -105,7 +105,7 @@ static void uas_do_work(struct work_struct *work)
 		if (!(cmdinfo->state & IS_IN_WORK_LIST))
 			continue;
 
-		err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
+		err = uas_submit_urbs(cmnd, cmnd->device->hostdata);
 		if (!err)
 			cmdinfo->state &= ~IS_IN_WORK_LIST;
 		else
@@ -240,7 +240,7 @@ static void uas_xfer_data(struct urb *urb, struct scsi_cmnd *cmnd,
 	int err;
 
 	cmdinfo->state |= direction | SUBMIT_STATUS_URB;
-	err = uas_submit_urbs(cmnd, cmnd->device->hostdata, GFP_ATOMIC);
+	err = uas_submit_urbs(cmnd, cmnd->device->hostdata);
 	if (err) {
 		uas_add_work(cmdinfo);
 	}
@@ -512,7 +512,7 @@ static struct urb *uas_submit_sense_urb(struct scsi_cmnd *cmnd, gfp_t gfp)
 }
 
 static int uas_submit_urbs(struct scsi_cmnd *cmnd,
-			   struct uas_dev_info *devinfo, gfp_t gfp)
+			   struct uas_dev_info *devinfo)
 {
 	struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
 	struct urb *urb;
@@ -520,14 +520,14 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 
 	lockdep_assert_held(&devinfo->lock);
 	if (cmdinfo->state & SUBMIT_STATUS_URB) {
-		urb = uas_submit_sense_urb(cmnd, gfp);
+		urb = uas_submit_sense_urb(cmnd, GFP_ATOMIC);
 		if (!urb)
 			return SCSI_MLQUEUE_DEVICE_BUSY;
 		cmdinfo->state &= ~SUBMIT_STATUS_URB;
 	}
 
 	if (cmdinfo->state & ALLOC_DATA_IN_URB) {
-		cmdinfo->data_in_urb = uas_alloc_data_urb(devinfo, gfp,
+		cmdinfo->data_in_urb = uas_alloc_data_urb(devinfo, GFP_ATOMIC,
 							cmnd, DMA_FROM_DEVICE);
 		if (!cmdinfo->data_in_urb)
 			return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -536,7 +536,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 
 	if (cmdinfo->state & SUBMIT_DATA_IN_URB) {
 		usb_anchor_urb(cmdinfo->data_in_urb, &devinfo->data_urbs);
-		err = usb_submit_urb(cmdinfo->data_in_urb, gfp);
+		err = usb_submit_urb(cmdinfo->data_in_urb, GFP_ATOMIC);
 		if (err) {
 			usb_unanchor_urb(cmdinfo->data_in_urb);
 			uas_log_cmd_state(cmnd, "data in submit err", err);
@@ -547,7 +547,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 	}
 
 	if (cmdinfo->state & ALLOC_DATA_OUT_URB) {
-		cmdinfo->data_out_urb = uas_alloc_data_urb(devinfo, gfp,
+		cmdinfo->data_out_urb = uas_alloc_data_urb(devinfo, GFP_ATOMIC,
 							cmnd, DMA_TO_DEVICE);
 		if (!cmdinfo->data_out_urb)
 			return SCSI_MLQUEUE_DEVICE_BUSY;
@@ -556,7 +556,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 
 	if (cmdinfo->state & SUBMIT_DATA_OUT_URB) {
 		usb_anchor_urb(cmdinfo->data_out_urb, &devinfo->data_urbs);
-		err = usb_submit_urb(cmdinfo->data_out_urb, gfp);
+		err = usb_submit_urb(cmdinfo->data_out_urb, GFP_ATOMIC);
 		if (err) {
 			usb_unanchor_urb(cmdinfo->data_out_urb);
 			uas_log_cmd_state(cmnd, "data out submit err", err);
@@ -567,7 +567,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 	}
 
 	if (cmdinfo->state & ALLOC_CMD_URB) {
-		cmdinfo->cmd_urb = uas_alloc_cmd_urb(devinfo, gfp, cmnd);
+		cmdinfo->cmd_urb = uas_alloc_cmd_urb(devinfo, GFP_ATOMIC, cmnd);
 		if (!cmdinfo->cmd_urb)
 			return SCSI_MLQUEUE_DEVICE_BUSY;
 		cmdinfo->state &= ~ALLOC_CMD_URB;
@@ -575,7 +575,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
 
 	if (cmdinfo->state & SUBMIT_CMD_URB) {
 		usb_anchor_urb(cmdinfo->cmd_urb, &devinfo->cmd_urbs);
-		err = usb_submit_urb(cmdinfo->cmd_urb, gfp);
+		err = usb_submit_urb(cmdinfo->cmd_urb, GFP_ATOMIC);
 		if (err) {
 			usb_unanchor_urb(cmdinfo->cmd_urb);
 			uas_log_cmd_state(cmnd, "cmd submit err", err);
@@ -653,7 +653,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 	if (!devinfo->use_streams)
 		cmdinfo->state &= ~(SUBMIT_DATA_IN_URB | SUBMIT_DATA_OUT_URB);
 
-	err = uas_submit_urbs(cmnd, devinfo, GFP_ATOMIC);
+	err = uas_submit_urbs(cmnd, devinfo);
 	if (err) {
 		/* If we did nothing, give up now */
 		if (cmdinfo->state & SUBMIT_STATUS_URB) {
diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c
index bdcb13cc1d54..01c20a260a8b 100644
--- a/drivers/uwb/uwbd.c
+++ b/drivers/uwb/uwbd.c
@@ -279,7 +279,6 @@ static int uwbd(void *param)
 			HZ);
 		if (should_stop)
 			break;
-		try_to_freeze();
 
 		spin_lock_irqsave(&rc->uwbd.event_list_lock, flags);
 		if (!list_empty(&rc->uwbd.event_list)) {
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
index 850d86ca685b..da6e2ce77495 100644
--- a/drivers/vfio/Kconfig
+++ b/drivers/vfio/Kconfig
@@ -31,6 +31,21 @@ menuconfig VFIO
 
 	  If you don't know what to do here, say N.
 
+menuconfig VFIO_NOIOMMU
+	bool "VFIO No-IOMMU support"
+	depends on VFIO
+	help
+	  VFIO is built on the ability to isolate devices using the IOMMU.
+	  Only with an IOMMU can userspace access to DMA capable devices be
+	  considered secure.  VFIO No-IOMMU mode enables IOMMU groups for
+	  devices without IOMMU backing for the purpose of re-using the VFIO
+	  infrastructure in a non-secure mode.  Use of this mode will result
+	  in an unsupportable kernel and will therefore taint the kernel.
+	  Device assignment to virtual machines is also not possible with
+	  this mode since there is no IOMMU to provide DMA translation.
+
+	  If you don't know what to do here, say N.
+
 source "drivers/vfio/pci/Kconfig"
 source "drivers/vfio/platform/Kconfig"
 source "virt/lib/Kconfig"
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 56bf6dbb93db..2760a7ba3f30 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -940,13 +940,13 @@ static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (pdev->hdr_type != PCI_HEADER_TYPE_NORMAL)
 		return -EINVAL;
 
-	group = iommu_group_get(&pdev->dev);
+	group = vfio_iommu_group_get(&pdev->dev);
 	if (!group)
 		return -EINVAL;
 
 	vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
 	if (!vdev) {
-		iommu_group_put(group);
+		vfio_iommu_group_put(group, &pdev->dev);
 		return -ENOMEM;
 	}
 
@@ -957,7 +957,7 @@ static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	ret = vfio_add_group_dev(&pdev->dev, &vfio_pci_ops, vdev);
 	if (ret) {
-		iommu_group_put(group);
+		vfio_iommu_group_put(group, &pdev->dev);
 		kfree(vdev);
 		return ret;
 	}
@@ -993,7 +993,7 @@ static void vfio_pci_remove(struct pci_dev *pdev)
 	if (!vdev)
 		return;
 
-	iommu_group_put(pdev->dev.iommu_group);
+	vfio_iommu_group_put(pdev->dev.iommu_group, &pdev->dev);
 	kfree(vdev);
 
 	if (vfio_pci_is_vga(pdev)) {
diff --git a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
index da5356f48d0b..d4030d0c38e9 100644
--- a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
+++ b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
@@ -110,7 +110,7 @@ int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
 	usleep_range(10, 15);
 
 	count = 2000;
-	while (count-- && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
+	while (--count && (ioread32(xgmac_regs->ioaddr + DMA_MR) & 1))
 		usleep_range(500, 600);
 
 	if (!count)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 6070b793cbcb..82f25cc1c460 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -62,6 +62,7 @@ struct vfio_container {
 	struct rw_semaphore		group_lock;
 	struct vfio_iommu_driver	*iommu_driver;
 	void				*iommu_data;
+	bool				noiommu;
 };
 
 struct vfio_unbound_dev {
@@ -84,6 +85,7 @@ struct vfio_group {
 	struct list_head		unbound_list;
 	struct mutex			unbound_lock;
 	atomic_t			opened;
+	bool				noiommu;
 };
 
 struct vfio_device {
@@ -95,6 +97,128 @@ struct vfio_device {
 	void				*device_data;
 };
 
+#ifdef CONFIG_VFIO_NOIOMMU
+static bool noiommu __read_mostly;
+module_param_named(enable_unsafe_noiommu_mode,
+		   noiommu, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(enable_unsafe_noiommu_mode, "Enable UNSAFE, no-IOMMU mode.  This mode provides no device isolation, no DMA translation, no host kernel protection, cannot be used for device assignment to virtual machines, requires RAWIO permissions, and will taint the kernel.  If you do not know what this is for, step away. (default: false)");
+#endif
+
+/*
+ * vfio_iommu_group_{get,put} are only intended for VFIO bus driver probe
+ * and remove functions, any use cases other than acquiring the first
+ * reference for the purpose of calling vfio_add_group_dev() or removing
+ * that symmetric reference after vfio_del_group_dev() should use the raw
+ * iommu_group_{get,put} functions.  In particular, vfio_iommu_group_put()
+ * removes the device from the dummy group and cannot be nested.
+ */
+struct iommu_group *vfio_iommu_group_get(struct device *dev)
+{
+	struct iommu_group *group;
+	int __maybe_unused ret;
+
+	group = iommu_group_get(dev);
+
+#ifdef CONFIG_VFIO_NOIOMMU
+	/*
+	 * With noiommu enabled, an IOMMU group will be created for a device
+	 * that doesn't already have one and doesn't have an iommu_ops on their
+	 * bus.  We use iommu_present() again in the main code to detect these
+	 * fake groups.
+	 */
+	if (group || !noiommu || iommu_present(dev->bus))
+		return group;
+
+	group = iommu_group_alloc();
+	if (IS_ERR(group))
+		return NULL;
+
+	iommu_group_set_name(group, "vfio-noiommu");
+	ret = iommu_group_add_device(group, dev);
+	iommu_group_put(group);
+	if (ret)
+		return NULL;
+
+	/*
+	 * Where to taint?  At this point we've added an IOMMU group for a
+	 * device that is not backed by iommu_ops, therefore any iommu_
+	 * callback using iommu_ops can legitimately Oops.  So, while we may
+	 * be about to give a DMA capable device to a user without IOMMU
+	 * protection, which is clearly taint-worthy, let's go ahead and do
+	 * it here.
+	 */
+	add_taint(TAINT_USER, LOCKDEP_STILL_OK);
+	dev_warn(dev, "Adding kernel taint for vfio-noiommu group on device\n");
+#endif
+
+	return group;
+}
+EXPORT_SYMBOL_GPL(vfio_iommu_group_get);
+
+void vfio_iommu_group_put(struct iommu_group *group, struct device *dev)
+{
+#ifdef CONFIG_VFIO_NOIOMMU
+	if (!iommu_present(dev->bus))
+		iommu_group_remove_device(dev);
+#endif
+
+	iommu_group_put(group);
+}
+EXPORT_SYMBOL_GPL(vfio_iommu_group_put);
+
+#ifdef CONFIG_VFIO_NOIOMMU
+static void *vfio_noiommu_open(unsigned long arg)
+{
+	if (arg != VFIO_NOIOMMU_IOMMU)
+		return ERR_PTR(-EINVAL);
+	if (!capable(CAP_SYS_RAWIO))
+		return ERR_PTR(-EPERM);
+
+	return NULL;
+}
+
+static void vfio_noiommu_release(void *iommu_data)
+{
+}
+
+static long vfio_noiommu_ioctl(void *iommu_data,
+			       unsigned int cmd, unsigned long arg)
+{
+	if (cmd == VFIO_CHECK_EXTENSION)
+		return noiommu && (arg == VFIO_NOIOMMU_IOMMU) ? 1 : 0;
+
+	return -ENOTTY;
+}
+
+static int vfio_iommu_present(struct device *dev, void *unused)
+{
+	return iommu_present(dev->bus) ? 1 : 0;
+}
+
+static int vfio_noiommu_attach_group(void *iommu_data,
+				     struct iommu_group *iommu_group)
+{
+	return iommu_group_for_each_dev(iommu_group, NULL,
+					vfio_iommu_present) ? -EINVAL : 0;
+}
+
+static void vfio_noiommu_detach_group(void *iommu_data,
+				      struct iommu_group *iommu_group)
+{
+}
+
+static const struct vfio_iommu_driver_ops vfio_noiommu_ops = {
+	.name = "vfio-noiommu",
+	.owner = THIS_MODULE,
+	.open = vfio_noiommu_open,
+	.release = vfio_noiommu_release,
+	.ioctl = vfio_noiommu_ioctl,
+	.attach_group = vfio_noiommu_attach_group,
+	.detach_group = vfio_noiommu_detach_group,
+};
+#endif
+
+
 /**
  * IOMMU driver registration
  */
@@ -199,7 +323,8 @@ static void vfio_group_unlock_and_free(struct vfio_group *group)
 /**
  * Group objects - create, release, get, put, search
  */
-static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group)
+static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group,
+					    bool iommu_present)
 {
 	struct vfio_group *group, *tmp;
 	struct device *dev;
@@ -217,6 +342,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group)
 	atomic_set(&group->container_users, 0);
 	atomic_set(&group->opened, 0);
 	group->iommu_group = iommu_group;
+	group->noiommu = !iommu_present;
 
 	group->nb.notifier_call = vfio_iommu_group_notifier;
 
@@ -252,7 +378,8 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group)
 
 	dev = device_create(vfio.class, NULL,
 			    MKDEV(MAJOR(vfio.group_devt), minor),
-			    group, "%d", iommu_group_id(iommu_group));
+			    group, "%s%d", group->noiommu ? "noiommu-" : "",
+			    iommu_group_id(iommu_group));
 	if (IS_ERR(dev)) {
 		vfio_free_group_minor(minor);
 		vfio_group_unlock_and_free(group);
@@ -640,7 +767,7 @@ int vfio_add_group_dev(struct device *dev,
 
 	group = vfio_group_get_from_iommu(iommu_group);
 	if (!group) {
-		group = vfio_create_group(iommu_group);
+		group = vfio_create_group(iommu_group, iommu_present(dev->bus));
 		if (IS_ERR(group)) {
 			iommu_group_put(iommu_group);
 			return PTR_ERR(group);
@@ -854,6 +981,14 @@ static long vfio_ioctl_check_extension(struct vfio_container *container,
 			mutex_lock(&vfio.iommu_drivers_lock);
 			list_for_each_entry(driver, &vfio.iommu_drivers_list,
 					    vfio_next) {
+
+#ifdef CONFIG_VFIO_NOIOMMU
+				if (!list_empty(&container->group_list) &&
+				    (container->noiommu !=
+				     (driver->ops == &vfio_noiommu_ops)))
+					continue;
+#endif
+
 				if (!try_module_get(driver->ops->owner))
 					continue;
 
@@ -925,6 +1060,15 @@ static long vfio_ioctl_set_iommu(struct vfio_container *container,
 	list_for_each_entry(driver, &vfio.iommu_drivers_list, vfio_next) {
 		void *data;
 
+#ifdef CONFIG_VFIO_NOIOMMU
+		/*
+		 * Only noiommu containers can use vfio-noiommu and noiommu
+		 * containers can only use vfio-noiommu.
+		 */
+		if (container->noiommu != (driver->ops == &vfio_noiommu_ops))
+			continue;
+#endif
+
 		if (!try_module_get(driver->ops->owner))
 			continue;
 
@@ -1187,6 +1331,9 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 	if (atomic_read(&group->container_users))
 		return -EINVAL;
 
+	if (group->noiommu && !capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
 	f = fdget(container_fd);
 	if (!f.file)
 		return -EBADF;
@@ -1202,6 +1349,13 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 
 	down_write(&container->group_lock);
 
+	/* Real groups and fake groups cannot mix */
+	if (!list_empty(&container->group_list) &&
+	    container->noiommu != group->noiommu) {
+		ret = -EPERM;
+		goto unlock_out;
+	}
+
 	driver = container->iommu_driver;
 	if (driver) {
 		ret = driver->ops->attach_group(container->iommu_data,
@@ -1211,6 +1365,7 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 	}
 
 	group->container = container;
+	container->noiommu = group->noiommu;
 	list_add(&group->container_next, &container->group_list);
 
 	/* Get a reference on the container and mark a user within the group */
@@ -1241,6 +1396,9 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
 	    !group->container->iommu_driver || !vfio_group_viable(group))
 		return -EINVAL;
 
+	if (group->noiommu && !capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
 	device = vfio_device_get_from_name(group, buf);
 	if (!device)
 		return -ENODEV;
@@ -1283,6 +1441,10 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
 
 	fd_install(ret, filep);
 
+	if (group->noiommu)
+		dev_warn(device->dev, "vfio-noiommu device opened by user "
+			 "(%s:%d)\n", current->comm, task_pid_nr(current));
+
 	return ret;
 }
 
@@ -1371,6 +1533,11 @@ static int vfio_group_fops_open(struct inode *inode, struct file *filep)
 	if (!group)
 		return -ENODEV;
 
+	if (group->noiommu && !capable(CAP_SYS_RAWIO)) {
+		vfio_group_put(group);
+		return -EPERM;
+	}
+
 	/* Do we need multiple instances of the group open?  Seems not. */
 	opened = atomic_cmpxchg(&group->opened, 0, 1);
 	if (opened) {
@@ -1533,6 +1700,11 @@ struct vfio_group *vfio_group_get_external_user(struct file *filep)
 	if (!atomic_inc_not_zero(&group->container_users))
 		return ERR_PTR(-EINVAL);
 
+	if (group->noiommu) {
+		atomic_dec(&group->container_users);
+		return ERR_PTR(-EPERM);
+	}
+
 	if (!group->container->iommu_driver ||
 			!vfio_group_viable(group)) {
 		atomic_dec(&group->container_users);
@@ -1625,6 +1797,9 @@ static int __init vfio_init(void)
 	request_module_nowait("vfio_iommu_type1");
 	request_module_nowait("vfio_iommu_spapr_tce");
 
+#ifdef CONFIG_VFIO_NOIOMMU
+	vfio_register_iommu_driver(&vfio_noiommu_ops);
+#endif
 	return 0;
 
 err_cdev_add:
@@ -1641,6 +1816,9 @@ static void __exit vfio_cleanup(void)
 {
 	WARN_ON(!list_empty(&vfio.group_list));
 
+#ifdef CONFIG_VFIO_NOIOMMU
+	vfio_unregister_iommu_driver(&vfio_noiommu_ops);
+#endif
 	idr_destroy(&vfio.group_idr);
 	cdev_del(&vfio.group_cdev);
 	unregister_chrdev_region(vfio.group_devt, MINORMASK);
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 59d47cb638d5..6f1ea3dddbad 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -995,7 +995,7 @@ static long vfio_iommu_type1_ioctl(void *iommu_data,
 		if (info.argsz < minsz)
 			return -EINVAL;
 
-		info.flags = 0;
+		info.flags = VFIO_IOMMU_INFO_PGSIZES;
 
 		info.iova_pgsizes = vfio_pgsize_bitmap(iommu);
 
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 98ffe71e8af2..510e559c060e 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -566,11 +566,13 @@ static ssize_t adp8860_bl_ambient_light_level_show(struct device *dev,
 
 	mutex_lock(&data->lock);
 	error = adp8860_read(data->client, ADP8860_PH1LEVL, &reg_val);
-	ret_val = reg_val;
-	error |= adp8860_read(data->client, ADP8860_PH1LEVH, &reg_val);
+	if (!error) {
+		ret_val = reg_val;
+		error = adp8860_read(data->client, ADP8860_PH1LEVH, &reg_val);
+	}
 	mutex_unlock(&data->lock);
 
-	if (error < 0)
+	if (error)
 		return error;
 
 	/* Return 13-bit conversion value for the first light sensor */
@@ -621,10 +623,12 @@ static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev,
 
 		/* Set user supplied ambient light zone */
 		mutex_lock(&data->lock);
-		adp8860_read(data->client, ADP8860_CFGR, &reg_val);
-		reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
-		reg_val |= (val - 1) << CFGR_BLV_SHIFT;
-		adp8860_write(data->client, ADP8860_CFGR, reg_val);
+		ret = adp8860_read(data->client, ADP8860_CFGR, &reg_val);
+		if (!ret) {
+			reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
+			reg_val |= (val - 1) << CFGR_BLV_SHIFT;
+			adp8860_write(data->client, ADP8860_CFGR, reg_val);
+		}
 		mutex_unlock(&data->lock);
 	}
 
diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c
index 9d738352d7d4..21acac90fd77 100644
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -807,10 +807,12 @@ static ssize_t adp8870_bl_ambient_light_zone_store(struct device *dev,
 
 		/* Set user supplied ambient light zone */
 		mutex_lock(&data->lock);
-		adp8870_read(data->client, ADP8870_CFGR, &reg_val);
-		reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
-		reg_val |= (val - 1) << CFGR_BLV_SHIFT;
-		adp8870_write(data->client, ADP8870_CFGR, reg_val);
+		ret = adp8870_read(data->client, ADP8870_CFGR, &reg_val);
+		if (!ret) {
+			reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
+			reg_val |= (val - 1) << CFGR_BLV_SHIFT;
+			adp8870_write(data->client, ADP8870_CFGR, reg_val);
+		}
 		mutex_unlock(&data->lock);
 	}
 
diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 5fbbc2ebdf93..18134416b154 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -89,6 +89,7 @@ static int gpio_backlight_probe(struct platform_device *pdev)
 	struct backlight_device *bl;
 	struct gpio_backlight *gbl;
 	struct device_node *np = pdev->dev.of_node;
+	unsigned long flags = GPIOF_DIR_OUT;
 	int ret;
 
 	if (!pdata && !np) {
@@ -114,9 +115,12 @@ static int gpio_backlight_probe(struct platform_device *pdev)
 		gbl->def_value = pdata->def_value;
 	}
 
-	ret = devm_gpio_request_one(gbl->dev, gbl->gpio, GPIOF_DIR_OUT |
-				    (gbl->active ? GPIOF_INIT_LOW
-						 : GPIOF_INIT_HIGH),
+	if (gbl->active)
+		flags |= gbl->def_value ? GPIOF_INIT_HIGH : GPIOF_INIT_LOW;
+	else
+		flags |= gbl->def_value ? GPIOF_INIT_LOW : GPIOF_INIT_HIGH;
+
+	ret = devm_gpio_request_one(gbl->dev, gbl->gpio, flags,
 				    pdata ? pdata->name : "backlight");
 	if (ret < 0) {
 		dev_err(&pdev->dev, "unable to request GPIO\n");
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index ae3c6b6fd5db..64f9e1b8655f 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -198,7 +198,9 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	struct platform_pwm_backlight_data defdata;
 	struct backlight_properties props;
 	struct backlight_device *bl;
+	struct device_node *node = pdev->dev.of_node;
 	struct pwm_bl_data *pb;
+	int initial_blank = FB_BLANK_UNBLANK;
 	int ret;
 
 	if (!data) {
@@ -242,7 +244,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	pb->enabled = false;
 
 	pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",
-						  GPIOD_OUT_HIGH);
+						  GPIOD_ASIS);
 	if (IS_ERR(pb->enable_gpio)) {
 		ret = PTR_ERR(pb->enable_gpio);
 		goto err_alloc;
@@ -264,15 +266,32 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 		pb->enable_gpio = gpio_to_desc(data->enable_gpio);
 	}
 
+	if (pb->enable_gpio) {
+		/*
+		 * If the driver is probed from the device tree and there is a
+		 * phandle link pointing to the backlight node, it is safe to
+		 * assume that another driver will enable the backlight at the
+		 * appropriate time. Therefore, if it is disabled, keep it so.
+		 */
+		if (node && node->phandle &&
+		    gpiod_get_direction(pb->enable_gpio) == GPIOF_DIR_OUT &&
+		    gpiod_get_value(pb->enable_gpio) == 0)
+			initial_blank = FB_BLANK_POWERDOWN;
+		else
+			gpiod_direction_output(pb->enable_gpio, 1);
+	}
+
 	pb->power_supply = devm_regulator_get(&pdev->dev, "power");
 	if (IS_ERR(pb->power_supply)) {
 		ret = PTR_ERR(pb->power_supply);
 		goto err_alloc;
 	}
 
+	if (node && node->phandle && !regulator_is_enabled(pb->power_supply))
+		initial_blank = FB_BLANK_POWERDOWN;
+
 	pb->pwm = devm_pwm_get(&pdev->dev, NULL);
-	if (IS_ERR(pb->pwm) && PTR_ERR(pb->pwm) != -EPROBE_DEFER
-	    && !pdev->dev.of_node) {
+	if (IS_ERR(pb->pwm) && PTR_ERR(pb->pwm) != -EPROBE_DEFER && !node) {
 		dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n");
 		pb->legacy = true;
 		pb->pwm = pwm_request(data->pwm_id, "pwm-backlight");
@@ -309,6 +328,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		ret = PTR_ERR(bl);
+		if (pb->legacy)
+			pwm_free(pb->pwm);
 		goto err_alloc;
 	}
 
@@ -320,6 +341,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	}
 
 	bl->props.brightness = data->dft_brightness;
+	bl->props.power = initial_blank;
 	backlight_update_status(bl);
 
 	platform_set_drvdata(pdev, bl);
diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c
index 61d72bffd402..fd524ad860a5 100644
--- a/drivers/video/backlight/tps65217_bl.c
+++ b/drivers/video/backlight/tps65217_bl.c
@@ -320,10 +320,19 @@ static int tps65217_bl_probe(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id tps65217_bl_of_match[] = {
+	{ .compatible = "ti,tps65217-bl", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, tps65217_bl_of_match);
+#endif
+
 static struct platform_driver tps65217_bl_driver = {
 	.probe		= tps65217_bl_probe,
 	.driver		= {
 		.name	= "tps65217-bl",
+		.of_match_table = of_match_ptr(tps65217_bl_of_match),
 	},
 };