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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 04:52:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 04:52:21 +0300
commit4008e6a9bcee2f3b61bb11951de0fb0ed764cb91 (patch)
treee7e3202d6d156acb57845a1824c9a8249f288c53 /arch/arm/mach-ixp4xx
parent6aa2f9441f1ef21f10c41f45e6453b135e9cd736 (diff)
parentd82e99a6f9b38cb1a044b4cd979bd49fd3f67cd2 (diff)
downloadlinux-4008e6a9bcee2f3b61bb11951de0fb0ed764cb91.tar.xz
Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: "This contains two bigger than usual tree-wide changes this time. They all have proper acks, caused no merge conflicts in linux-next where they have been for a while. They are namely: - to-gpiod conversion of the i2c-gpio driver and its users (touching arch/* and drivers/mfd/*) - adding a sbs-manager based on I2C core updates to SMBus alerts (touching drivers/power/*) Other notable changes: - i2c_boardinfo can now carry a dev_name to be used when the device is created. This is because some devices in ACPI world need fixed names to find the regulators. - the designware driver got a long discussed overhaul of its PM handling. img-scb and davinci got PM support, too. - at24 driver has way better OF support. And it has a new maintainer. Thanks Bartosz for stepping up! The rest is regular driver updates and fixes" * 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (55 commits) ARM: sa1100: simpad: Correct I2C GPIO offsets i2c: aspeed: Deassert reset in probe eeprom: at24: Add OF device ID table MAINTAINERS: new maintainer for AT24 driver i2c: nuc900: remove platform_data, too i2c: thunderx: Remove duplicate NULL check i2c: taos-evm: Remove duplicate NULL check i2c: Make i2c_unregister_device() NULL-aware i2c: xgene-slimpro: Support v2 i2c: mpc: remove useless variable initialization i2c: omap: Trigger bus recovery in lockup case i2c: gpio: Add support for named gpios in DT dt-bindings: i2c: i2c-gpio: Add support for named gpios i2c: gpio: Local vars in probe i2c: gpio: Augment all boardfiles to use open drain i2c: gpio: Enforce open drain through gpiolib gpio: Make it possible for consumers to enforce open drain i2c: gpio: Convert to use descriptors power: supply: sbs-message: fix some code style issues power: supply: sbs-battery: remove unchecked return var ...
Diffstat (limited to 'arch/arm/mach-ixp4xx')
-rw-r--r--arch/arm/mach-ixp4xx/avila-setup.c17
-rw-r--r--arch/arm/mach-ixp4xx/dsmg600-setup.c16
-rw-r--r--arch/arm/mach-ixp4xx/fsg-setup.c16
-rw-r--r--arch/arm/mach-ixp4xx/goramo_mlr.c24
-rw-r--r--arch/arm/mach-ixp4xx/ixdp425-setup.c16
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-setup.c16
-rw-r--r--arch/arm/mach-ixp4xx/nslu2-setup.c16
7 files changed, 73 insertions, 48 deletions
diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c
index 186df64ceae7..77def6169f50 100644
--- a/arch/arm/mach-ixp4xx/avila-setup.c
+++ b/arch/arm/mach-ixp4xx/avila-setup.c
@@ -18,7 +18,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
@@ -50,16 +50,21 @@ static struct platform_device avila_flash = {
.resource = &avila_flash_resource,
};
-static struct i2c_gpio_platform_data avila_i2c_gpio_data = {
- .sda_pin = AVILA_SDA_PIN,
- .scl_pin = AVILA_SCL_PIN,
+static struct gpiod_lookup_table avila_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device avila_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &avila_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -148,6 +153,8 @@ static void __init avila_init(void)
avila_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+ gpiod_add_lookup_table(&avila_i2c_gpiod_table);
+
platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 19839bba7f17..ac97a4599034 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -26,7 +26,7 @@
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
@@ -69,16 +69,21 @@ static struct platform_device dsmg600_flash = {
.resource = &dsmg600_flash_resource,
};
-static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = {
- .sda_pin = DSMG600_SDA_PIN,
- .scl_pin = DSMG600_SCL_PIN,
+static struct gpiod_lookup_table dsmg600_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", DSMG600_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", DSMG600_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device dsmg600_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &dsmg600_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -270,6 +275,7 @@ static void __init dsmg600_init(void)
dsmg600_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+ gpiod_add_lookup_table(&dsmg600_i2c_gpiod_table);
i2c_register_board_info(0, dsmg600_i2c_board_info,
ARRAY_SIZE(dsmg600_i2c_board_info));
diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c
index 6e32cbc4f590..033f79b35d51 100644
--- a/arch/arm/mach-ixp4xx/fsg-setup.c
+++ b/arch/arm/mach-ixp4xx/fsg-setup.c
@@ -23,7 +23,7 @@
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -55,16 +55,21 @@ static struct platform_device fsg_flash = {
.resource = &fsg_flash_resource,
};
-static struct i2c_gpio_platform_data fsg_i2c_gpio_data = {
- .sda_pin = FSG_SDA_PIN,
- .scl_pin = FSG_SCL_PIN,
+static struct gpiod_lookup_table fsg_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", FSG_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", FSG_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device fsg_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &fsg_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -197,6 +202,7 @@ static void __init fsg_init(void)
/* Configure CS2 for operation, 8bit and writable */
*IXP4XX_EXP_CS2 = 0xbfff0002;
+ gpiod_add_lookup_table(&fsg_i2c_gpiod_table);
i2c_register_board_info(0, fsg_i2c_board_info,
ARRAY_SIZE(fsg_i2c_board_info));
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index 145ec5c1b0eb..4d805080020e 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -7,7 +7,6 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/hdlc.h>
-#include <linux/i2c-gpio.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/kernel.h>
@@ -79,6 +78,12 @@
static u32 hw_bits = 0xFFFFFFFD; /* assume all hardware present */;
static u8 control_value;
+/*
+ * FIXME: this is reimplementing I2C bit-bangining. Move this
+ * over to using driver/i2c/busses/i2c-gpio.c like all other boards
+ * and register proper I2C device(s) on the bus for this. (See
+ * other IXP4xx boards for examples.)
+ */
static void set_scl(u8 value)
{
gpio_set_value(GPIO_SCL, !!value);
@@ -217,20 +222,6 @@ static struct platform_device device_flash = {
.resource = &flash_resource,
};
-
-/* I^2C interface */
-static struct i2c_gpio_platform_data i2c_data = {
- .sda_pin = GPIO_SDA,
- .scl_pin = GPIO_SCL,
-};
-
-static struct platform_device device_i2c = {
- .name = "i2c-gpio",
- .id = 0,
- .dev = { .platform_data = &i2c_data },
-};
-
-
/* IXP425 2 UART ports */
static struct resource uart_resources[] = {
{
@@ -412,9 +403,6 @@ static void __init gmlr_init(void)
if (hw_bits & CFG_HW_HAS_HSS1)
device_tab[devices++] = &device_hss_tab[1]; /* max index 5 */
- if (hw_bits & CFG_HW_HAS_EEPROM)
- device_tab[devices++] = &device_i2c; /* max index 6 */
-
gpio_request(GPIO_SCL, "SCL/clock");
gpio_request(GPIO_SDA, "SDA/data");
gpio_request(GPIO_STR, "strobe");
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 8f5e01527b1b..b168e2fbdbeb 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -15,7 +15,7 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
@@ -123,16 +123,21 @@ static struct platform_device ixdp425_flash_nand = {
};
#endif /* CONFIG_MTD_NAND_PLATFORM */
-static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
- .sda_pin = IXDP425_SDA_PIN,
- .scl_pin = IXDP425_SCL_PIN,
+static struct gpiod_lookup_table ixdp425_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", IXDP425_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", IXDP425_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device ixdp425_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &ixdp425_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -246,6 +251,7 @@ static void __init ixdp425_init(void)
ixdp425_uart_data[1].flags = 0;
}
+ gpiod_add_lookup_table(&ixdp425_i2c_gpiod_table);
platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
}
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index b6d731241317..435602085408 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -28,7 +28,7 @@
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -101,16 +101,21 @@ static struct platform_device nas100d_leds = {
.dev.platform_data = &nas100d_led_data,
};
-static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
- .sda_pin = NAS100D_SDA_PIN,
- .scl_pin = NAS100D_SCL_PIN,
+static struct gpiod_lookup_table nas100d_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NAS100D_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NAS100D_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct platform_device nas100d_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &nas100d_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -281,6 +286,7 @@ static void __init nas100d_init(void)
nas100d_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+ gpiod_add_lookup_table(&nas100d_i2c_gpiod_table);
i2c_register_board_info(0, nas100d_i2c_board_info,
ARRAY_SIZE(nas100d_i2c_board_info));
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index bd8dc65b4ffc..91da63a7d7b5 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -25,7 +25,7 @@
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
-#include <linux/i2c-gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -69,9 +69,14 @@ static struct platform_device nslu2_flash = {
.resource = &nslu2_flash_resource,
};
-static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
- .sda_pin = NSLU2_SDA_PIN,
- .scl_pin = NSLU2_SCL_PIN,
+static struct gpiod_lookup_table nslu2_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SDA_PIN,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SCL_PIN,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
};
static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
@@ -116,7 +121,7 @@ static struct platform_device nslu2_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
- .platform_data = &nslu2_i2c_gpio_data,
+ .platform_data = NULL,
},
};
@@ -251,6 +256,7 @@ static void __init nslu2_init(void)
nslu2_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+ gpiod_add_lookup_table(&nslu2_i2c_gpiod_table);
i2c_register_board_info(0, nslu2_i2c_board_info,
ARRAY_SIZE(nslu2_i2c_board_info));