scsi: ufs: Split the drivers/scsi/ufs directory

Split the drivers/scsi/ufs directory into 'core' and 'host' directories
under the drivers/ufs/ directory. Move shared header files into the
include/ufs/ directory. This separation makes it clear which header files
UFS drivers are allowed to include (include/ufs/*.h) and which header files
UFS drivers are not allowed to include (drivers/ufs/core/*.h).

Update the MAINTAINERS file. Add myself as a UFS reviewer.

Link: https://lore.kernel.org/r/20220511212552.655341-1-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Keoseong Park <keosung.park@samsung.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 0 insertions, 1230 deletions

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
deleted file mode 100644
index 2b0f3441b813..000000000000
--- a/drivers/scsi/ufs/ufshcd.h
+++ /dev/null
@@ -1,1230 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Universal Flash Storage Host controller driver
- * Copyright (C) 2011-2013 Samsung India Software Operations
- * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
- *
- * Authors:
- *	Santosh Yaraganavi <santosh.sy@samsung.com>
- *	Vinayak Holikatti <h.vinayak@samsung.com>
- */
-
-#ifndef _UFSHCD_H
-#define _UFSHCD_H
-
-#include <linux/bitfield.h>
-#include <linux/blk-crypto-profile.h>
-#include <linux/blk-mq.h>
-#include <linux/devfreq.h>
-#include <linux/pm_runtime.h>
-#include <scsi/scsi_device.h>
-#include "unipro.h"
-#include "ufs.h"
-#include "ufs_quirks.h"
-#include "ufshci.h"
-
-#define UFSHCD "ufshcd"
-
-struct ufs_hba;
-
-enum dev_cmd_type {
-	DEV_CMD_TYPE_NOP		= 0x0,
-	DEV_CMD_TYPE_QUERY		= 0x1,
-};
-
-enum ufs_event_type {
-	/* uic specific errors */
-	UFS_EVT_PA_ERR = 0,
-	UFS_EVT_DL_ERR,
-	UFS_EVT_NL_ERR,
-	UFS_EVT_TL_ERR,
-	UFS_EVT_DME_ERR,
-
-	/* fatal errors */
-	UFS_EVT_AUTO_HIBERN8_ERR,
-	UFS_EVT_FATAL_ERR,
-	UFS_EVT_LINK_STARTUP_FAIL,
-	UFS_EVT_RESUME_ERR,
-	UFS_EVT_SUSPEND_ERR,
-	UFS_EVT_WL_SUSP_ERR,
-	UFS_EVT_WL_RES_ERR,
-
-	/* abnormal events */
-	UFS_EVT_DEV_RESET,
-	UFS_EVT_HOST_RESET,
-	UFS_EVT_ABORT,
-
-	UFS_EVT_CNT,
-};
-
-/**
- * struct uic_command - UIC command structure
- * @command: UIC command
- * @argument1: UIC command argument 1
- * @argument2: UIC command argument 2
- * @argument3: UIC command argument 3
- * @cmd_active: Indicate if UIC command is outstanding
- * @done: UIC command completion
- */
-struct uic_command {
-	u32 command;
-	u32 argument1;
-	u32 argument2;
-	u32 argument3;
-	int cmd_active;
-	struct completion done;
-};
-
-/* Used to differentiate the power management options */
-enum ufs_pm_op {
-	UFS_RUNTIME_PM,
-	UFS_SYSTEM_PM,
-	UFS_SHUTDOWN_PM,
-};
-
-/* Host <-> Device UniPro Link state */
-enum uic_link_state {
-	UIC_LINK_OFF_STATE	= 0, /* Link powered down or disabled */
-	UIC_LINK_ACTIVE_STATE	= 1, /* Link is in Fast/Slow/Sleep state */
-	UIC_LINK_HIBERN8_STATE	= 2, /* Link is in Hibernate state */
-	UIC_LINK_BROKEN_STATE	= 3, /* Link is in broken state */
-};
-
-#define ufshcd_is_link_off(hba) ((hba)->uic_link_state == UIC_LINK_OFF_STATE)
-#define ufshcd_is_link_active(hba) ((hba)->uic_link_state == \
-				    UIC_LINK_ACTIVE_STATE)
-#define ufshcd_is_link_hibern8(hba) ((hba)->uic_link_state == \
-				    UIC_LINK_HIBERN8_STATE)
-#define ufshcd_is_link_broken(hba) ((hba)->uic_link_state == \
-				   UIC_LINK_BROKEN_STATE)
-#define ufshcd_set_link_off(hba) ((hba)->uic_link_state = UIC_LINK_OFF_STATE)
-#define ufshcd_set_link_active(hba) ((hba)->uic_link_state = \
-				    UIC_LINK_ACTIVE_STATE)
-#define ufshcd_set_link_hibern8(hba) ((hba)->uic_link_state = \
-				    UIC_LINK_HIBERN8_STATE)
-#define ufshcd_set_link_broken(hba) ((hba)->uic_link_state = \
-				    UIC_LINK_BROKEN_STATE)
-
-#define ufshcd_set_ufs_dev_active(h) \
-	((h)->curr_dev_pwr_mode = UFS_ACTIVE_PWR_MODE)
-#define ufshcd_set_ufs_dev_sleep(h) \
-	((h)->curr_dev_pwr_mode = UFS_SLEEP_PWR_MODE)
-#define ufshcd_set_ufs_dev_poweroff(h) \
-	((h)->curr_dev_pwr_mode = UFS_POWERDOWN_PWR_MODE)
-#define ufshcd_set_ufs_dev_deepsleep(h) \
-	((h)->curr_dev_pwr_mode = UFS_DEEPSLEEP_PWR_MODE)
-#define ufshcd_is_ufs_dev_active(h) \
-	((h)->curr_dev_pwr_mode == UFS_ACTIVE_PWR_MODE)
-#define ufshcd_is_ufs_dev_sleep(h) \
-	((h)->curr_dev_pwr_mode == UFS_SLEEP_PWR_MODE)
-#define ufshcd_is_ufs_dev_poweroff(h) \
-	((h)->curr_dev_pwr_mode == UFS_POWERDOWN_PWR_MODE)
-#define ufshcd_is_ufs_dev_deepsleep(h) \
-	((h)->curr_dev_pwr_mode == UFS_DEEPSLEEP_PWR_MODE)
-
-/*
- * UFS Power management levels.
- * Each level is in increasing order of power savings, except DeepSleep
- * which is lower than PowerDown with power on but not PowerDown with
- * power off.
- */
-enum ufs_pm_level {
-	UFS_PM_LVL_0,
-	UFS_PM_LVL_1,
-	UFS_PM_LVL_2,
-	UFS_PM_LVL_3,
-	UFS_PM_LVL_4,
-	UFS_PM_LVL_5,
-	UFS_PM_LVL_6,
-	UFS_PM_LVL_MAX
-};
-
-struct ufs_pm_lvl_states {
-	enum ufs_dev_pwr_mode dev_state;
-	enum uic_link_state link_state;
-};
-
-/**
- * struct ufshcd_lrb - local reference block
- * @utr_descriptor_ptr: UTRD address of the command
- * @ucd_req_ptr: UCD address of the command
- * @ucd_rsp_ptr: Response UPIU address for this command
- * @ucd_prdt_ptr: PRDT address of the command
- * @utrd_dma_addr: UTRD dma address for debug
- * @ucd_prdt_dma_addr: PRDT dma address for debug
- * @ucd_rsp_dma_addr: UPIU response dma address for debug
- * @ucd_req_dma_addr: UPIU request dma address for debug
- * @cmd: pointer to SCSI command
- * @scsi_status: SCSI status of the command
- * @command_type: SCSI, UFS, Query.
- * @task_tag: Task tag of the command
- * @lun: LUN of the command
- * @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation)
- * @issue_time_stamp: time stamp for debug purposes
- * @compl_time_stamp: time stamp for statistics
- * @crypto_key_slot: the key slot to use for inline crypto (-1 if none)
- * @data_unit_num: the data unit number for the first block for inline crypto
- * @req_abort_skip: skip request abort task flag
- */
-struct ufshcd_lrb {
-	struct utp_transfer_req_desc *utr_descriptor_ptr;
-	struct utp_upiu_req *ucd_req_ptr;
-	struct utp_upiu_rsp *ucd_rsp_ptr;
-	struct ufshcd_sg_entry *ucd_prdt_ptr;
-
-	dma_addr_t utrd_dma_addr;
-	dma_addr_t ucd_req_dma_addr;
-	dma_addr_t ucd_rsp_dma_addr;
-	dma_addr_t ucd_prdt_dma_addr;
-
-	struct scsi_cmnd *cmd;
-	int scsi_status;
-
-	int command_type;
-	int task_tag;
-	u8 lun; /* UPIU LUN id field is only 8-bit wide */
-	bool intr_cmd;
-	ktime_t issue_time_stamp;
-	ktime_t compl_time_stamp;
-#ifdef CONFIG_SCSI_UFS_CRYPTO
-	int crypto_key_slot;
-	u64 data_unit_num;
-#endif
-
-	bool req_abort_skip;
-};
-
-/**
- * struct ufs_query - holds relevant data structures for query request
- * @request: request upiu and function
- * @descriptor: buffer for sending/receiving descriptor
- * @response: response upiu and response
- */
-struct ufs_query {
-	struct ufs_query_req request;
-	u8 *descriptor;
-	struct ufs_query_res response;
-};
-
-/**
- * struct ufs_dev_cmd - all assosiated fields with device management commands
- * @type: device management command type - Query, NOP OUT
- * @lock: lock to allow one command at a time
- * @complete: internal commands completion
- * @query: Device management query information
- */
-struct ufs_dev_cmd {
-	enum dev_cmd_type type;
-	struct mutex lock;
-	struct completion *complete;
-	struct ufs_query query;
-};
-
-/**
- * struct ufs_clk_info - UFS clock related info
- * @list: list headed by hba->clk_list_head
- * @clk: clock node
- * @name: clock name
- * @max_freq: maximum frequency supported by the clock
- * @min_freq: min frequency that can be used for clock scaling
- * @curr_freq: indicates the current frequency that it is set to
- * @keep_link_active: indicates that the clk should not be disabled if
- *		      link is active
- * @enabled: variable to check against multiple enable/disable
- */
-struct ufs_clk_info {
-	struct list_head list;
-	struct clk *clk;
-	const char *name;
-	u32 max_freq;
-	u32 min_freq;
-	u32 curr_freq;
-	bool keep_link_active;
-	bool enabled;
-};
-
-enum ufs_notify_change_status {
-	PRE_CHANGE,
-	POST_CHANGE,
-};
-
-struct ufs_pa_layer_attr {
-	u32 gear_rx;
-	u32 gear_tx;
-	u32 lane_rx;
-	u32 lane_tx;
-	u32 pwr_rx;
-	u32 pwr_tx;
-	u32 hs_rate;
-};
-
-struct ufs_pwr_mode_info {
-	bool is_valid;
-	struct ufs_pa_layer_attr info;
-};
-
-/**
- * struct ufs_hba_variant_ops - variant specific callbacks
- * @name: variant name
- * @init: called when the driver is initialized
- * @exit: called to cleanup everything done in init
- * @get_ufs_hci_version: called to get UFS HCI version
- * @clk_scale_notify: notifies that clks are scaled up/down
- * @setup_clocks: called before touching any of the controller registers
- * @hce_enable_notify: called before and after HCE enable bit is set to allow
- *                     variant specific Uni-Pro initialization.
- * @link_startup_notify: called before and after Link startup is carried out
- *                       to allow variant specific Uni-Pro initialization.
- * @pwr_change_notify: called before and after a power mode change
- *			is carried out to allow vendor spesific capabilities
- *			to be set.
- * @setup_xfer_req: called before any transfer request is issued
- *                  to set some things
- * @setup_task_mgmt: called before any task management request is issued
- *                  to set some things
- * @hibern8_notify: called around hibern8 enter/exit
- * @apply_dev_quirks: called to apply device specific quirks
- * @fixup_dev_quirks: called to modify device specific quirks
- * @suspend: called during host controller PM callback
- * @resume: called during host controller PM callback
- * @dbg_register_dump: used to dump controller debug information
- * @phy_initialization: used to initialize phys
- * @device_reset: called to issue a reset pulse on the UFS device
- * @config_scaling_param: called to configure clock scaling parameters
- * @program_key: program or evict an inline encryption key
- * @event_notify: called to notify important events
- */
-struct ufs_hba_variant_ops {
-	const char *name;
-	int	(*init)(struct ufs_hba *);
-	void    (*exit)(struct ufs_hba *);
-	u32	(*get_ufs_hci_version)(struct ufs_hba *);
-	int	(*clk_scale_notify)(struct ufs_hba *, bool,
-				    enum ufs_notify_change_status);
-	int	(*setup_clocks)(struct ufs_hba *, bool,
-				enum ufs_notify_change_status);
-	int	(*hce_enable_notify)(struct ufs_hba *,
-				     enum ufs_notify_change_status);
-	int	(*link_startup_notify)(struct ufs_hba *,
-				       enum ufs_notify_change_status);
-	int	(*pwr_change_notify)(struct ufs_hba *,
-					enum ufs_notify_change_status status,
-					struct ufs_pa_layer_attr *,
-					struct ufs_pa_layer_attr *);
-	void	(*setup_xfer_req)(struct ufs_hba *hba, int tag,
-				  bool is_scsi_cmd);
-	void	(*setup_task_mgmt)(struct ufs_hba *, int, u8);
-	void    (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
-					enum ufs_notify_change_status);
-	int	(*apply_dev_quirks)(struct ufs_hba *hba);
-	void	(*fixup_dev_quirks)(struct ufs_hba *hba);
-	int     (*suspend)(struct ufs_hba *, enum ufs_pm_op,
-					enum ufs_notify_change_status);
-	int     (*resume)(struct ufs_hba *, enum ufs_pm_op);
-	void	(*dbg_register_dump)(struct ufs_hba *hba);
-	int	(*phy_initialization)(struct ufs_hba *);
-	int	(*device_reset)(struct ufs_hba *hba);
-	void	(*config_scaling_param)(struct ufs_hba *hba,
-				struct devfreq_dev_profile *profile,
-				struct devfreq_simple_ondemand_data *data);
-	int	(*program_key)(struct ufs_hba *hba,
-			       const union ufs_crypto_cfg_entry *cfg, int slot);
-	void	(*event_notify)(struct ufs_hba *hba,
-				enum ufs_event_type evt, void *data);
-};
-
-/* clock gating state  */
-enum clk_gating_state {
-	CLKS_OFF,
-	CLKS_ON,
-	REQ_CLKS_OFF,
-	REQ_CLKS_ON,
-};
-
-/**
- * struct ufs_clk_gating - UFS clock gating related info
- * @gate_work: worker to turn off clocks after some delay as specified in
- * delay_ms
- * @ungate_work: worker to turn on clocks that will be used in case of
- * interrupt context
- * @state: the current clocks state
- * @delay_ms: gating delay in ms
- * @is_suspended: clk gating is suspended when set to 1 which can be used
- * during suspend/resume
- * @delay_attr: sysfs attribute to control delay_attr
- * @enable_attr: sysfs attribute to enable/disable clock gating
- * @is_enabled: Indicates the current status of clock gating
- * @is_initialized: Indicates whether clock gating is initialized or not
- * @active_reqs: number of requests that are pending and should be waited for
- * completion before gating clocks.
- * @clk_gating_workq: workqueue for clock gating work.
- */
-struct ufs_clk_gating {
-	struct delayed_work gate_work;
-	struct work_struct ungate_work;
-	enum clk_gating_state state;
-	unsigned long delay_ms;
-	bool is_suspended;
-	struct device_attribute delay_attr;
-	struct device_attribute enable_attr;
-	bool is_enabled;
-	bool is_initialized;
-	int active_reqs;
-	struct workqueue_struct *clk_gating_workq;
-};
-
-struct ufs_saved_pwr_info {
-	struct ufs_pa_layer_attr info;
-	bool is_valid;
-};
-
-/**
- * struct ufs_clk_scaling - UFS clock scaling related data
- * @active_reqs: number of requests that are pending. If this is zero when
- * devfreq ->target() function is called then schedule "suspend_work" to
- * suspend devfreq.
- * @tot_busy_t: Total busy time in current polling window
- * @window_start_t: Start time (in jiffies) of the current polling window
- * @busy_start_t: Start time of current busy period
- * @enable_attr: sysfs attribute to enable/disable clock scaling
- * @saved_pwr_info: UFS power mode may also be changed during scaling and this
- * one keeps track of previous power mode.
- * @workq: workqueue to schedule devfreq suspend/resume work
- * @suspend_work: worker to suspend devfreq
- * @resume_work: worker to resume devfreq
- * @min_gear: lowest HS gear to scale down to
- * @is_enabled: tracks if scaling is currently enabled or not, controlled by
- *		clkscale_enable sysfs node
- * @is_allowed: tracks if scaling is currently allowed or not, used to block
- *		clock scaling which is not invoked from devfreq governor
- * @is_initialized: Indicates whether clock scaling is initialized or not
- * @is_busy_started: tracks if busy period has started or not
- * @is_suspended: tracks if devfreq is suspended or not
- */
-struct ufs_clk_scaling {
-	int active_reqs;
-	unsigned long tot_busy_t;
-	ktime_t window_start_t;
-	ktime_t busy_start_t;
-	struct device_attribute enable_attr;
-	struct ufs_saved_pwr_info saved_pwr_info;
-	struct workqueue_struct *workq;
-	struct work_struct suspend_work;
-	struct work_struct resume_work;
-	u32 min_gear;
-	bool is_enabled;
-	bool is_allowed;
-	bool is_initialized;
-	bool is_busy_started;
-	bool is_suspended;
-};
-
-#define UFS_EVENT_HIST_LENGTH 8
-/**
- * struct ufs_event_hist - keeps history of errors
- * @pos: index to indicate cyclic buffer position
- * @val: cyclic buffer for registers value
- * @tstamp: cyclic buffer for time stamp
- * @cnt: error counter
- */
-struct ufs_event_hist {
-	int pos;
-	u32 val[UFS_EVENT_HIST_LENGTH];
-	ktime_t tstamp[UFS_EVENT_HIST_LENGTH];
-	unsigned long long cnt;
-};
-
-/**
- * struct ufs_stats - keeps usage/err statistics
- * @last_intr_status: record the last interrupt status.
- * @last_intr_ts: record the last interrupt timestamp.
- * @hibern8_exit_cnt: Counter to keep track of number of exits,
- *		reset this after link-startup.
- * @last_hibern8_exit_tstamp: Set time after the hibern8 exit.
- *		Clear after the first successful command completion.
- * @event: array with event history.
- */
-struct ufs_stats {
-	u32 last_intr_status;
-	ktime_t last_intr_ts;
-
-	u32 hibern8_exit_cnt;
-	ktime_t last_hibern8_exit_tstamp;
-	struct ufs_event_hist event[UFS_EVT_CNT];
-};
-
-/**
- * enum ufshcd_state - UFS host controller state
- * @UFSHCD_STATE_RESET: Link is not operational. Postpone SCSI command
- *	processing.
- * @UFSHCD_STATE_OPERATIONAL: The host controller is operational and can process
- *	SCSI commands.
- * @UFSHCD_STATE_EH_SCHEDULED_NON_FATAL: The error handler has been scheduled.
- *	SCSI commands may be submitted to the controller.
- * @UFSHCD_STATE_EH_SCHEDULED_FATAL: The error handler has been scheduled. Fail
- *	newly submitted SCSI commands with error code DID_BAD_TARGET.
- * @UFSHCD_STATE_ERROR: An unrecoverable error occurred, e.g. link recovery
- *	failed. Fail all SCSI commands with error code DID_ERROR.
- */
-enum ufshcd_state {
-	UFSHCD_STATE_RESET,
-	UFSHCD_STATE_OPERATIONAL,
-	UFSHCD_STATE_EH_SCHEDULED_NON_FATAL,
-	UFSHCD_STATE_EH_SCHEDULED_FATAL,
-	UFSHCD_STATE_ERROR,
-};
-
-enum ufshcd_quirks {
-	/* Interrupt aggregation support is broken */
-	UFSHCD_QUIRK_BROKEN_INTR_AGGR			= 1 << 0,
-
-	/*
-	 * delay before each dme command is required as the unipro
-	 * layer has shown instabilities
-	 */
-	UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS		= 1 << 1,
-
-	/*
-	 * If UFS host controller is having issue in processing LCC (Line
-	 * Control Command) coming from device then enable this quirk.
-	 * When this quirk is enabled, host controller driver should disable
-	 * the LCC transmission on UFS device (by clearing TX_LCC_ENABLE
-	 * attribute of device to 0).
-	 */
-	UFSHCD_QUIRK_BROKEN_LCC				= 1 << 2,
-
-	/*
-	 * The attribute PA_RXHSUNTERMCAP specifies whether or not the
-	 * inbound Link supports unterminated line in HS mode. Setting this
-	 * attribute to 1 fixes moving to HS gear.
-	 */
-	UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP		= 1 << 3,
-
-	/*
-	 * This quirk needs to be enabled if the host controller only allows
-	 * accessing the peer dme attributes in AUTO mode (FAST AUTO or
-	 * SLOW AUTO).
-	 */
-	UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE		= 1 << 4,
-
-	/*
-	 * This quirk needs to be enabled if the host controller doesn't
-	 * advertise the correct version in UFS_VER register. If this quirk
-	 * is enabled, standard UFS host driver will call the vendor specific
-	 * ops (get_ufs_hci_version) to get the correct version.
-	 */
-	UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION		= 1 << 5,
-
-	/*
-	 * Clear handling for transfer/task request list is just opposite.
-	 */
-	UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR		= 1 << 6,
-
-	/*
-	 * This quirk needs to be enabled if host controller doesn't allow
-	 * that the interrupt aggregation timer and counter are reset by s/w.
-	 */
-	UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR		= 1 << 7,
-
-	/*
-	 * This quirks needs to be enabled if host controller cannot be
-	 * enabled via HCE register.
-	 */
-	UFSHCI_QUIRK_BROKEN_HCE				= 1 << 8,
-
-	/*
-	 * This quirk needs to be enabled if the host controller regards
-	 * resolution of the values of PRDTO and PRDTL in UTRD as byte.
-	 */
-	UFSHCD_QUIRK_PRDT_BYTE_GRAN			= 1 << 9,
-
-	/*
-	 * This quirk needs to be enabled if the host controller reports
-	 * OCS FATAL ERROR with device error through sense data
-	 */
-	UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR		= 1 << 10,
-
-	/*
-	 * This quirk needs to be enabled if the host controller has
-	 * auto-hibernate capability but it doesn't work.
-	 */
-	UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8		= 1 << 11,
-
-	/*
-	 * This quirk needs to disable manual flush for write booster
-	 */
-	UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL		= 1 << 12,
-
-	/*
-	 * This quirk needs to disable unipro timeout values
-	 * before power mode change
-	 */
-	UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING = 1 << 13,
-
-	/*
-	 * This quirk allows only sg entries aligned with page size.
-	 */
-	UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE		= 1 << 14,
-
-	/*
-	 * This quirk needs to be enabled if the host controller does not
-	 * support UIC command
-	 */
-	UFSHCD_QUIRK_BROKEN_UIC_CMD			= 1 << 15,
-
-	/*
-	 * This quirk needs to be enabled if the host controller cannot
-	 * support physical host configuration.
-	 */
-	UFSHCD_QUIRK_SKIP_PH_CONFIGURATION		= 1 << 16,
-};
-
-enum ufshcd_caps {
-	/* Allow dynamic clk gating */
-	UFSHCD_CAP_CLK_GATING				= 1 << 0,
-
-	/* Allow hiberb8 with clk gating */
-	UFSHCD_CAP_HIBERN8_WITH_CLK_GATING		= 1 << 1,
-
-	/* Allow dynamic clk scaling */
-	UFSHCD_CAP_CLK_SCALING				= 1 << 2,
-
-	/* Allow auto bkops to enabled during runtime suspend */
-	UFSHCD_CAP_AUTO_BKOPS_SUSPEND			= 1 << 3,
-
-	/*
-	 * This capability allows host controller driver to use the UFS HCI's
-	 * interrupt aggregation capability.
-	 * CAUTION: Enabling this might reduce overall UFS throughput.
-	 */
-	UFSHCD_CAP_INTR_AGGR				= 1 << 4,
-
-	/*
-	 * This capability allows the device auto-bkops to be always enabled
-	 * except during suspend (both runtime and suspend).
-	 * Enabling this capability means that device will always be allowed
-	 * to do background operation when it's active but it might degrade
-	 * the performance of ongoing read/write operations.
-	 */
-	UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND = 1 << 5,
-
-	/*
-	 * This capability allows host controller driver to automatically
-	 * enable runtime power management by itself instead of waiting
-	 * for userspace to control the power management.
-	 */
-	UFSHCD_CAP_RPM_AUTOSUSPEND			= 1 << 6,
-
-	/*
-	 * This capability allows the host controller driver to turn-on
-	 * WriteBooster, if the underlying device supports it and is
-	 * provisioned to be used. This would increase the write performance.
-	 */
-	UFSHCD_CAP_WB_EN				= 1 << 7,
-
-	/*
-	 * This capability allows the host controller driver to use the
-	 * inline crypto engine, if it is present
-	 */
-	UFSHCD_CAP_CRYPTO				= 1 << 8,
-
-	/*
-	 * This capability allows the controller regulators to be put into
-	 * lpm mode aggressively during clock gating.
-	 * This would increase power savings.
-	 */
-	UFSHCD_CAP_AGGR_POWER_COLLAPSE			= 1 << 9,
-
-	/*
-	 * This capability allows the host controller driver to use DeepSleep,
-	 * if it is supported by the UFS device. The host controller driver must
-	 * support device hardware reset via the hba->device_reset() callback,
-	 * in order to exit DeepSleep state.
-	 */
-	UFSHCD_CAP_DEEPSLEEP				= 1 << 10,
-
-	/*
-	 * This capability allows the host controller driver to use temperature
-	 * notification if it is supported by the UFS device.
-	 */
-	UFSHCD_CAP_TEMP_NOTIF				= 1 << 11,
-};
-
-struct ufs_hba_variant_params {
-	struct devfreq_dev_profile devfreq_profile;
-	struct devfreq_simple_ondemand_data ondemand_data;
-	u16 hba_enable_delay_us;
-	u32 wb_flush_threshold;
-};
-
-#ifdef CONFIG_SCSI_UFS_HPB
-/**
- * struct ufshpb_dev_info - UFSHPB device related info
- * @num_lu: the number of user logical unit to check whether all lu finished
- *          initialization
- * @rgn_size: device reported HPB region size
- * @srgn_size: device reported HPB sub-region size
- * @slave_conf_cnt: counter to check all lu finished initialization
- * @hpb_disabled: flag to check if HPB is disabled
- * @max_hpb_single_cmd: device reported bMAX_DATA_SIZE_FOR_SINGLE_CMD value
- * @is_legacy: flag to check HPB 1.0
- * @control_mode: either host or device
- */
-struct ufshpb_dev_info {
-	int num_lu;
-	int rgn_size;
-	int srgn_size;
-	atomic_t slave_conf_cnt;
-	bool hpb_disabled;
-	u8 max_hpb_single_cmd;
-	bool is_legacy;
-	u8 control_mode;
-};
-#endif
-
-struct ufs_hba_monitor {
-	unsigned long chunk_size;
-
-	unsigned long nr_sec_rw[2];
-	ktime_t total_busy[2];
-
-	unsigned long nr_req[2];
-	/* latencies*/
-	ktime_t lat_sum[2];
-	ktime_t lat_max[2];
-	ktime_t lat_min[2];
-
-	u32 nr_queued[2];
-	ktime_t busy_start_ts[2];
-
-	ktime_t enabled_ts;
-	bool enabled;
-};
-
-/**
- * struct ufs_hba - per adapter private structure
- * @mmio_base: UFSHCI base register address
- * @ucdl_base_addr: UFS Command Descriptor base address
- * @utrdl_base_addr: UTP Transfer Request Descriptor base address
- * @utmrdl_base_addr: UTP Task Management Descriptor base address
- * @ucdl_dma_addr: UFS Command Descriptor DMA address
- * @utrdl_dma_addr: UTRDL DMA address
- * @utmrdl_dma_addr: UTMRDL DMA address
- * @host: Scsi_Host instance of the driver
- * @dev: device handle
- * @ufs_device_wlun: WLUN that controls the entire UFS device.
- * @hwmon_device: device instance registered with the hwmon core.
- * @curr_dev_pwr_mode: active UFS device power mode.
- * @uic_link_state: active state of the link to the UFS device.
- * @rpm_lvl: desired UFS power management level during runtime PM.
- * @spm_lvl: desired UFS power management level during system PM.
- * @pm_op_in_progress: whether or not a PM operation is in progress.
- * @ahit: value of Auto-Hibernate Idle Timer register.
- * @lrb: local reference block
- * @outstanding_tasks: Bits representing outstanding task requests
- * @outstanding_lock: Protects @outstanding_reqs.
- * @outstanding_reqs: Bits representing outstanding transfer requests
- * @capabilities: UFS Controller Capabilities
- * @nutrs: Transfer Request Queue depth supported by controller
- * @nutmrs: Task Management Queue depth supported by controller
- * @reserved_slot: Used to submit device commands. Protected by @dev_cmd.lock.
- * @ufs_version: UFS Version to which controller complies
- * @vops: pointer to variant specific operations
- * @vps: pointer to variant specific parameters
- * @priv: pointer to variant specific private data
- * @irq: Irq number of the controller
- * @is_irq_enabled: whether or not the UFS controller interrupt is enabled.
- * @dev_ref_clk_freq: reference clock frequency
- * @quirks: bitmask with information about deviations from the UFSHCI standard.
- * @dev_quirks: bitmask with information about deviations from the UFS standard.
- * @tmf_tag_set: TMF tag set.
- * @tmf_queue: Used to allocate TMF tags.
- * @tmf_rqs: array with pointers to TMF requests while these are in progress.
- * @active_uic_cmd: handle of active UIC command
- * @uic_cmd_mutex: mutex for UIC command
- * @uic_async_done: completion used during UIC processing
- * @ufshcd_state: UFSHCD state
- * @eh_flags: Error handling flags
- * @intr_mask: Interrupt Mask Bits
- * @ee_ctrl_mask: Exception event control mask
- * @ee_drv_mask: Exception event mask for driver
- * @ee_usr_mask: Exception event mask for user (set via debugfs)
- * @ee_ctrl_mutex: Used to serialize exception event information.
- * @is_powered: flag to check if HBA is powered
- * @shutting_down: flag to check if shutdown has been invoked
- * @host_sem: semaphore used to serialize concurrent contexts
- * @eh_wq: Workqueue that eh_work works on
- * @eh_work: Worker to handle UFS errors that require s/w attention
- * @eeh_work: Worker to handle exception events
- * @errors: HBA errors
- * @uic_error: UFS interconnect layer error status
- * @saved_err: sticky error mask
- * @saved_uic_err: sticky UIC error mask
- * @ufs_stats: various error counters
- * @force_reset: flag to force eh_work perform a full reset
- * @force_pmc: flag to force a power mode change
- * @silence_err_logs: flag to silence error logs
- * @dev_cmd: ufs device management command information
- * @last_dme_cmd_tstamp: time stamp of the last completed DME command
- * @nop_out_timeout: NOP OUT timeout value
- * @dev_info: information about the UFS device
- * @auto_bkops_enabled: to track whether bkops is enabled in device
- * @vreg_info: UFS device voltage regulator information
- * @clk_list_head: UFS host controller clocks list node head
- * @req_abort_count: number of times ufshcd_abort() has been called
- * @lanes_per_direction: number of lanes per data direction between the UFS
- *	controller and the UFS device.
- * @pwr_info: holds current power mode
- * @max_pwr_info: keeps the device max valid pwm
- * @clk_gating: information related to clock gating
- * @caps: bitmask with information about UFS controller capabilities
- * @devfreq: frequency scaling information owned by the devfreq core
- * @clk_scaling: frequency scaling information owned by the UFS driver
- * @is_sys_suspended: whether or not the entire system has been suspended
- * @urgent_bkops_lvl: keeps track of urgent bkops level for device
- * @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
- *  device is known or not.
- * @clk_scaling_lock: used to serialize device commands and clock scaling
- * @desc_size: descriptor sizes reported by device
- * @scsi_block_reqs_cnt: reference counting for scsi block requests
- * @bsg_dev: struct device associated with the BSG queue
- * @bsg_queue: BSG queue associated with the UFS controller
- * @rpm_dev_flush_recheck_work: used to suspend from RPM (runtime power
- *	management) after the UFS device has finished a WriteBooster buffer
- *	flush or auto BKOP.
- * @ufshpb_dev: information related to HPB (Host Performance Booster).
- * @monitor: statistics about UFS commands
- * @crypto_capabilities: Content of crypto capabilities register (0x100)
- * @crypto_cap_array: Array of crypto capabilities
- * @crypto_cfg_register: Start of the crypto cfg array
- * @crypto_profile: the crypto profile of this hba (if applicable)
- * @debugfs_root: UFS controller debugfs root directory
- * @debugfs_ee_work: used to restore ee_ctrl_mask after a delay
- * @debugfs_ee_rate_limit_ms: user configurable delay after which to restore
- *	ee_ctrl_mask
- * @luns_avail: number of regular and well known LUNs supported by the UFS
- *	device
- * @complete_put: whether or not to call ufshcd_rpm_put() from inside
- *	ufshcd_resume_complete()
- */
-struct ufs_hba {
-	void __iomem *mmio_base;
-
-	/* Virtual memory reference */
-	struct utp_transfer_cmd_desc *ucdl_base_addr;
-	struct utp_transfer_req_desc *utrdl_base_addr;
-	struct utp_task_req_desc *utmrdl_base_addr;
-
-	/* DMA memory reference */
-	dma_addr_t ucdl_dma_addr;
-	dma_addr_t utrdl_dma_addr;
-	dma_addr_t utmrdl_dma_addr;
-
-	struct Scsi_Host *host;
-	struct device *dev;
-	struct scsi_device *ufs_device_wlun;
-
-#ifdef CONFIG_SCSI_UFS_HWMON
-	struct device *hwmon_device;
-#endif
-
-	enum ufs_dev_pwr_mode curr_dev_pwr_mode;
-	enum uic_link_state uic_link_state;
-	/* Desired UFS power management level during runtime PM */
-	enum ufs_pm_level rpm_lvl;
-	/* Desired UFS power management level during system PM */
-	enum ufs_pm_level spm_lvl;
-	int pm_op_in_progress;
-
-	/* Auto-Hibernate Idle Timer register value */
-	u32 ahit;
-
-	struct ufshcd_lrb *lrb;
-
-	unsigned long outstanding_tasks;
-	spinlock_t outstanding_lock;
-	unsigned long outstanding_reqs;
-
-	u32 capabilities;
-	int nutrs;
-	int nutmrs;
-	u32 reserved_slot;
-	u32 ufs_version;
-	const struct ufs_hba_variant_ops *vops;
-	struct ufs_hba_variant_params *vps;
-	void *priv;
-	unsigned int irq;
-	bool is_irq_enabled;
-	enum ufs_ref_clk_freq dev_ref_clk_freq;
-
-	unsigned int quirks;	/* Deviations from standard UFSHCI spec. */
-
-	/* Device deviations from standard UFS device spec. */
-	unsigned int dev_quirks;
-
-	struct blk_mq_tag_set tmf_tag_set;
-	struct request_queue *tmf_queue;
-	struct request **tmf_rqs;
-
-	struct uic_command *active_uic_cmd;
-	struct mutex uic_cmd_mutex;
-	struct completion *uic_async_done;
-
-	enum ufshcd_state ufshcd_state;
-	u32 eh_flags;
-	u32 intr_mask;
-	u16 ee_ctrl_mask;
-	u16 ee_drv_mask;
-	u16 ee_usr_mask;
-	struct mutex ee_ctrl_mutex;
-	bool is_powered;
-	bool shutting_down;
-	struct semaphore host_sem;
-
-	/* Work Queues */
-	struct workqueue_struct *eh_wq;
-	struct work_struct eh_work;
-	struct work_struct eeh_work;
-
-	/* HBA Errors */
-	u32 errors;
-	u32 uic_error;
-	u32 saved_err;
-	u32 saved_uic_err;
-	struct ufs_stats ufs_stats;
-	bool force_reset;
-	bool force_pmc;
-	bool silence_err_logs;
-
-	/* Device management request data */
-	struct ufs_dev_cmd dev_cmd;
-	ktime_t last_dme_cmd_tstamp;
-	int nop_out_timeout;
-
-	/* Keeps information of the UFS device connected to this host */
-	struct ufs_dev_info dev_info;
-	bool auto_bkops_enabled;
-	struct ufs_vreg_info vreg_info;
-	struct list_head clk_list_head;
-
-	/* Number of requests aborts */
-	int req_abort_count;
-
-	/* Number of lanes available (1 or 2) for Rx/Tx */
-	u32 lanes_per_direction;
-	struct ufs_pa_layer_attr pwr_info;
-	struct ufs_pwr_mode_info max_pwr_info;
-
-	struct ufs_clk_gating clk_gating;
-	/* Control to enable/disable host capabilities */
-	u32 caps;
-
-	struct devfreq *devfreq;
-	struct ufs_clk_scaling clk_scaling;
-	bool is_sys_suspended;
-
-	enum bkops_status urgent_bkops_lvl;
-	bool is_urgent_bkops_lvl_checked;
-
-	struct rw_semaphore clk_scaling_lock;
-	unsigned char desc_size[QUERY_DESC_IDN_MAX];
-	atomic_t scsi_block_reqs_cnt;
-
-	struct device		bsg_dev;
-	struct request_queue	*bsg_queue;
-	struct delayed_work rpm_dev_flush_recheck_work;
-
-#ifdef CONFIG_SCSI_UFS_HPB
-	struct ufshpb_dev_info ufshpb_dev;
-#endif
-
-	struct ufs_hba_monitor	monitor;
-
-#ifdef CONFIG_SCSI_UFS_CRYPTO
-	union ufs_crypto_capabilities crypto_capabilities;
-	union ufs_crypto_cap_entry *crypto_cap_array;
-	u32 crypto_cfg_register;
-	struct blk_crypto_profile crypto_profile;
-#endif
-#ifdef CONFIG_DEBUG_FS
-	struct dentry *debugfs_root;
-	struct delayed_work debugfs_ee_work;
-	u32 debugfs_ee_rate_limit_ms;
-#endif
-	u32 luns_avail;
-	bool complete_put;
-};
-
-/* Returns true if clocks can be gated. Otherwise false */
-static inline bool ufshcd_is_clkgating_allowed(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_CLK_GATING;
-}
-static inline bool ufshcd_can_hibern8_during_gating(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
-}
-static inline int ufshcd_is_clkscaling_supported(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_CLK_SCALING;
-}
-static inline bool ufshcd_can_autobkops_during_suspend(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
-}
-static inline bool ufshcd_is_rpm_autosuspend_allowed(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_RPM_AUTOSUSPEND;
-}
-
-static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
-{
-	return (hba->caps & UFSHCD_CAP_INTR_AGGR) &&
-		!(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR);
-}
-
-static inline bool ufshcd_can_aggressive_pc(struct ufs_hba *hba)
-{
-	return !!(ufshcd_is_link_hibern8(hba) &&
-		  (hba->caps & UFSHCD_CAP_AGGR_POWER_COLLAPSE));
-}
-
-static inline bool ufshcd_is_auto_hibern8_supported(struct ufs_hba *hba)
-{
-	return (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) &&
-		!(hba->quirks & UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8);
-}
-
-static inline bool ufshcd_is_auto_hibern8_enabled(struct ufs_hba *hba)
-{
-	return FIELD_GET(UFSHCI_AHIBERN8_TIMER_MASK, hba->ahit);
-}
-
-static inline bool ufshcd_is_wb_allowed(struct ufs_hba *hba)
-{
-	return hba->caps & UFSHCD_CAP_WB_EN;
-}
-
-#define ufshcd_writel(hba, val, reg)	\
-	writel((val), (hba)->mmio_base + (reg))
-#define ufshcd_readl(hba, reg)	\
-	readl((hba)->mmio_base + (reg))
-
-/**
- * ufshcd_rmwl - perform read/modify/write for a controller register
- * @hba: per adapter instance
- * @mask: mask to apply on read value
- * @val: actual value to write
- * @reg: register address
- */
-static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
-{
-	u32 tmp;
-
-	tmp = ufshcd_readl(hba, reg);
-	tmp &= ~mask;
-	tmp |= (val & mask);
-	ufshcd_writel(hba, tmp, reg);
-}
-
-int ufshcd_alloc_host(struct device *, struct ufs_hba **);
-void ufshcd_dealloc_host(struct ufs_hba *);
-int ufshcd_hba_enable(struct ufs_hba *hba);
-int ufshcd_init(struct ufs_hba *, void __iomem *, unsigned int);
-int ufshcd_link_recovery(struct ufs_hba *hba);
-int ufshcd_make_hba_operational(struct ufs_hba *hba);
-void ufshcd_remove(struct ufs_hba *);
-int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
-int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
-void ufshcd_delay_us(unsigned long us, unsigned long tolerance);
-void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk);
-void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val);
-void ufshcd_hba_stop(struct ufs_hba *hba);
-void ufshcd_schedule_eh_work(struct ufs_hba *hba);
-
-static inline void check_upiu_size(void)
-{
-	BUILD_BUG_ON(ALIGNED_UPIU_SIZE <
-		GENERAL_UPIU_REQUEST_SIZE + QUERY_DESC_MAX_SIZE);
-}
-
-/**
- * ufshcd_set_variant - set variant specific data to the hba
- * @hba: per adapter instance
- * @variant: pointer to variant specific data
- */
-static inline void ufshcd_set_variant(struct ufs_hba *hba, void *variant)
-{
-	BUG_ON(!hba);
-	hba->priv = variant;
-}
-
-/**
- * ufshcd_get_variant - get variant specific data from the hba
- * @hba: per adapter instance
- */
-static inline void *ufshcd_get_variant(struct ufs_hba *hba)
-{
-	BUG_ON(!hba);
-	return hba->priv;
-}
-
-#ifdef CONFIG_PM
-extern int ufshcd_runtime_suspend(struct device *dev);
-extern int ufshcd_runtime_resume(struct device *dev);
-#endif
-#ifdef CONFIG_PM_SLEEP
-extern int ufshcd_system_suspend(struct device *dev);
-extern int ufshcd_system_resume(struct device *dev);
-#endif
-extern int ufshcd_shutdown(struct ufs_hba *hba);
-extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
-				      int agreed_gear,
-				      int adapt_val);
-extern int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
-			       u8 attr_set, u32 mib_val, u8 peer);
-extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
-			       u32 *mib_val, u8 peer);
-extern int ufshcd_config_pwr_mode(struct ufs_hba *hba,
-			struct ufs_pa_layer_attr *desired_pwr_mode);
-
-/* UIC command interfaces for DME primitives */
-#define DME_LOCAL	0
-#define DME_PEER	1
-#define ATTR_SET_NOR	0	/* NORMAL */
-#define ATTR_SET_ST	1	/* STATIC */
-
-static inline int ufshcd_dme_set(struct ufs_hba *hba, u32 attr_sel,
-				 u32 mib_val)
-{
-	return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_NOR,
-				   mib_val, DME_LOCAL);
-}
-
-static inline int ufshcd_dme_st_set(struct ufs_hba *hba, u32 attr_sel,
-				    u32 mib_val)
-{
-	return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_ST,
-				   mib_val, DME_LOCAL);
-}
-
-static inline int ufshcd_dme_peer_set(struct ufs_hba *hba, u32 attr_sel,
-				      u32 mib_val)
-{
-	return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_NOR,
-				   mib_val, DME_PEER);
-}
-
-static inline int ufshcd_dme_peer_st_set(struct ufs_hba *hba, u32 attr_sel,
-					 u32 mib_val)
-{
-	return ufshcd_dme_set_attr(hba, attr_sel, ATTR_SET_ST,
-				   mib_val, DME_PEER);
-}
-
-static inline int ufshcd_dme_get(struct ufs_hba *hba,
-				 u32 attr_sel, u32 *mib_val)
-{
-	return ufshcd_dme_get_attr(hba, attr_sel, mib_val, DME_LOCAL);
-}
-
-static inline int ufshcd_dme_peer_get(struct ufs_hba *hba,
-				      u32 attr_sel, u32 *mib_val)
-{
-	return ufshcd_dme_get_attr(hba, attr_sel, mib_val, DME_PEER);
-}
-
-static inline bool ufshcd_is_hs_mode(struct ufs_pa_layer_attr *pwr_info)
-{
-	return (pwr_info->pwr_rx == FAST_MODE ||
-		pwr_info->pwr_rx == FASTAUTO_MODE) &&
-		(pwr_info->pwr_tx == FAST_MODE ||
-		pwr_info->pwr_tx == FASTAUTO_MODE);
-}
-
-static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
-{
-	return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
-}
-
-/* Expose Query-Request API */
-int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
-				  enum query_opcode opcode,
-				  enum desc_idn idn, u8 index,
-				  u8 selector,
-				  u8 *desc_buf, int *buf_len);
-int ufshcd_read_desc_param(struct ufs_hba *hba,
-			   enum desc_idn desc_id,
-			   int desc_index,
-			   u8 param_offset,
-			   u8 *param_read_buf,
-			   u8 param_size);
-int ufshcd_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode,
-			    enum attr_idn idn, u8 index, u8 selector,
-			    u32 *attr_val);
-int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
-		      enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
-int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
-	enum flag_idn idn, u8 index, bool *flag_res);
-
-void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
-void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);
-void ufshcd_fixup_dev_quirks(struct ufs_hba *hba,
-			     const struct ufs_dev_quirk *fixups);
-#define SD_ASCII_STD true
-#define SD_RAW false
-int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index,
-			    u8 **buf, bool ascii);
-
-int ufshcd_hold(struct ufs_hba *hba, bool async);
-void ufshcd_release(struct ufs_hba *hba);
-
-void ufshcd_clkgate_delay_set(struct device *dev, unsigned long value);
-
-void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id,
-				  int *desc_length);
-
-u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba);
-
-int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd);
-
-int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
-			     struct utp_upiu_req *req_upiu,
-			     struct utp_upiu_req *rsp_upiu,
-			     int msgcode,
-			     u8 *desc_buff, int *buff_len,
-			     enum query_opcode desc_op);
-
-int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
-int ufshcd_suspend_prepare(struct device *dev);
-int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm);
-void ufshcd_resume_complete(struct device *dev);
-
-/* Wrapper functions for safely calling variant operations */
-static inline int ufshcd_vops_init(struct ufs_hba *hba)
-{
-	if (hba->vops && hba->vops->init)
-		return hba->vops->init(hba);
-
-	return 0;
-}
-
-static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
-{
-	if (hba->vops && hba->vops->phy_initialization)
-		return hba->vops->phy_initialization(hba);
-
-	return 0;
-}
-
-extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];
-
-int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
-		     const char *prefix);
-
-int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask);
-int ufshcd_write_ee_control(struct ufs_hba *hba);
-int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask,
-			     u16 set, u16 clr);
-
-#endif /* End of Header */