[linux-2.6-block.git] / include / linux / regulator / consumer.h

/*
 * consumer.h -- SoC Regulator consumer support.
 *
 * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
 *
 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
 *
 * 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.
 *
 * Regulator Consumer Interface.
 *
 * A Power Management Regulator framework for SoC based devices.
 * Features:-
 *   o Voltage and current level control.
 *   o Operating mode control.
 *   o Regulator status.
 *   o sysfs entries for showing client devices and status
 *
 * EXPERIMENTAL FEATURES:
 *   Dynamic Regulator operating Mode Switching (DRMS) - allows regulators
 *   to use most efficient operating mode depending upon voltage and load and
 *   is transparent to client drivers.
 *
 *   e.g. Devices x,y,z share regulator r. Device x and y draw 20mA each during
 *   IO and 1mA at idle. Device z draws 100mA when under load and 5mA when
 *   idling. Regulator r has > 90% efficiency in NORMAL mode at loads > 100mA
 *   but this drops rapidly to 60% when below 100mA. Regulator r has > 90%
 *   efficiency in IDLE mode at loads < 10mA. Thus regulator r will operate
 *   in normal mode for loads > 10mA and in IDLE mode for load <= 10mA.
 *
 */

#ifndef __LINUX_REGULATOR_CONSUMER_H_
#define __LINUX_REGULATOR_CONSUMER_H_

struct device;
struct notifier_block;

/*
 * Regulator operating modes.
 *
 * Regulators can run in a variety of different operating modes depending on
 * output load. This allows further system power savings by selecting the
 * best (and most efficient) regulator mode for a desired load.
 *
 * Most drivers will only care about NORMAL. The modes below are generic and
 * will probably not match the naming convention of your regulator data sheet
 * but should match the use cases in the datasheet.
 *
 * In order of power efficiency (least efficient at top).
 *
 *  Mode       Description
 *  FAST       Regulator can handle fast changes in it's load.
 *             e.g. useful in CPU voltage & frequency scaling where
 *             load can quickly increase with CPU frequency increases.
 *
 *  NORMAL     Normal regulator power supply mode. Most drivers will
 *             use this mode.
 *
 *  IDLE       Regulator runs in a more efficient mode for light
 *             loads. Can be used for devices that have a low power
 *             requirement during periods of inactivity. This mode
 *             may be more noisy than NORMAL and may not be able
 *             to handle fast load switching.
 *
 *  STANDBY    Regulator runs in the most efficient mode for very
 *             light loads. Can be used by devices when they are
 *             in a sleep/standby state. This mode is likely to be
 *             the most noisy and may not be able to handle fast load
 *             switching.
 *
 * NOTE: Most regulators will only support a subset of these modes. Some
 * will only just support NORMAL.
 *
 * These modes can be OR'ed together to make up a mask of valid register modes.
 */

#define REGULATOR_MODE_FAST			0x1
#define REGULATOR_MODE_NORMAL			0x2
#define REGULATOR_MODE_IDLE			0x4
#define REGULATOR_MODE_STANDBY			0x8

/*
 * Regulator notifier events.
 *
 * UNDER_VOLTAGE  Regulator output is under voltage.
 * OVER_CURRENT   Regulator output current is too high.
 * REGULATION_OUT Regulator output is out of regulation.
 * FAIL           Regulator output has failed.
 * OVER_TEMP      Regulator over temp.
 * FORCE_DISABLE  Regulator forcibly shut down by software.
 * VOLTAGE_CHANGE Regulator voltage changed.
 * DISABLE        Regulator was disabled.
 *
 * NOTE: These events can be OR'ed together when passed into handler.
 */

#define REGULATOR_EVENT_UNDER_VOLTAGE		0x01
#define REGULATOR_EVENT_OVER_CURRENT		0x02
#define REGULATOR_EVENT_REGULATION_OUT		0x04
#define REGULATOR_EVENT_FAIL			0x08
#define REGULATOR_EVENT_OVER_TEMP		0x10
#define REGULATOR_EVENT_FORCE_DISABLE		0x20
#define REGULATOR_EVENT_VOLTAGE_CHANGE		0x40
#define REGULATOR_EVENT_DISABLE 		0x80

struct regulator;

/**
 * struct regulator_bulk_data - Data used for bulk regulator operations.
 *
 * @supply:   The name of the supply.  Initialised by the user before
 *            using the bulk regulator APIs.
 * @consumer: The regulator consumer for the supply.  This will be managed
 *            by the bulk API.
 *
 * The regulator APIs provide a series of regulator_bulk_() API calls as
 * a convenience to consumers which require multiple supplies.  This
 * structure is used to manage data for these calls.
 */
struct regulator_bulk_data {
	const char *supply;
	struct regulator *consumer;

	/* private: Internal use */
	int ret;
};

#if defined(CONFIG_REGULATOR)

/* regulator get and put */
struct regulator *__must_check regulator_get(struct device *dev,
					     const char *id);
struct regulator *__must_check devm_regulator_get(struct device *dev,
					     const char *id);
struct regulator *__must_check regulator_get_exclusive(struct device *dev,
						       const char *id);
struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev,
							const char *id);
struct regulator *__must_check regulator_get_optional(struct device *dev,
						      const char *id);
struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
							   const char *id);
void regulator_put(struct regulator *regulator);
void devm_regulator_put(struct regulator *regulator);

int regulator_register_supply_alias(struct device *dev, const char *id,
				    struct device *alias_dev,
				    const char *alias_id);
void regulator_unregister_supply_alias(struct device *dev, const char *id);

int regulator_bulk_register_supply_alias(struct device *dev, const char **id,
					 struct device *alias_dev,
					 const char **alias_id, int num_id);
void regulator_bulk_unregister_supply_alias(struct device *dev,
					    const char **id, int num_id);

int devm_regulator_register_supply_alias(struct device *dev, const char *id,
					 struct device *alias_dev,
					 const char *alias_id);
void devm_regulator_unregister_supply_alias(struct device *dev,
					    const char *id);

int devm_regulator_bulk_register_supply_alias(struct device *dev,
					      const char **id,
					      struct device *alias_dev,
					      const char **alias_id,
					      int num_id);
void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
						 const char **id,
						 int num_id);

/* regulator output control and status */
int __must_check regulator_enable(struct regulator *regulator);
int regulator_disable(struct regulator *regulator);
int regulator_force_disable(struct regulator *regulator);
int regulator_is_enabled(struct regulator *regulator);
int regulator_disable_deferred(struct regulator *regulator, int ms);

int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
				    struct regulator_bulk_data *consumers);
int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
					 struct regulator_bulk_data *consumers);
int __must_check regulator_bulk_enable(int num_consumers,
				       struct regulator_bulk_data *consumers);
int regulator_bulk_disable(int num_consumers,
			   struct regulator_bulk_data *consumers);
int regulator_bulk_force_disable(int num_consumers,
			   struct regulator_bulk_data *consumers);
void regulator_bulk_free(int num_consumers,
			 struct regulator_bulk_data *consumers);

int regulator_can_change_voltage(struct regulator *regulator);
int regulator_count_voltages(struct regulator *regulator);
int regulator_list_voltage(struct regulator *regulator, unsigned selector);
int regulator_is_supported_voltage(struct regulator *regulator,
				   int min_uV, int max_uV);
unsigned int regulator_get_linear_step(struct regulator *regulator);
int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
int regulator_set_voltage_time(struct regulator *regulator,
			       int old_uV, int new_uV);
int regulator_get_voltage(struct regulator *regulator);
int regulator_sync_voltage(struct regulator *regulator);
int regulator_set_current_limit(struct regulator *regulator,
			       int min_uA, int max_uA);
int regulator_get_current_limit(struct regulator *regulator);

int regulator_set_mode(struct regulator *regulator, unsigned int mode);
unsigned int regulator_get_mode(struct regulator *regulator);
int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);

int regulator_allow_bypass(struct regulator *regulator, bool allow);

/* regulator notifier block */
int regulator_register_notifier(struct regulator *regulator,
			      struct notifier_block *nb);
int regulator_unregister_notifier(struct regulator *regulator,
				struct notifier_block *nb);

/* driver data - core doesn't touch */
void *regulator_get_drvdata(struct regulator *regulator);
void regulator_set_drvdata(struct regulator *regulator, void *data);

#else

/*
 * Make sure client drivers will still build on systems with no software
 * controllable voltage or current regulators.
 */
static inline struct regulator *__must_check regulator_get(struct device *dev,
	const char *id)
{
	/* Nothing except the stubbed out regulator API should be
	 * looking at the value except to check if it is an error
	 * value. Drivers are free to handle NULL specifically by
	 * skipping all regulator API calls, but they don't have to.
	 * Drivers which don't, should make sure they properly handle
	 * corner cases of the API, such as regulator_get_voltage()
	 * returning 0.
	 */
	return NULL;
}

static inline struct regulator *__must_check
devm_regulator_get(struct device *dev, const char *id)
{
	return NULL;
}

static inline struct regulator *__must_check
regulator_get_exclusive(struct device *dev, const char *id)
{
	return NULL;
}

static inline struct regulator *__must_check
regulator_get_optional(struct device *dev, const char *id)
{
	return NULL;
}


static inline struct regulator *__must_check
devm_regulator_get_optional(struct device *dev, const char *id)
{
	return NULL;
}

static inline void regulator_put(struct regulator *regulator)
{
}

static inline void devm_regulator_put(struct regulator *regulator)
{
}

static inline int regulator_register_supply_alias(struct device *dev,
						  const char *id,
						  struct device *alias_dev,
						  const char *alias_id)
{
	return 0;
}

static inline void regulator_unregister_supply_alias(struct device *dev,
						    const char *id)
{
}

static inline int regulator_bulk_register_supply_alias(struct device *dev,
						       const char **id,
						       struct device *alias_dev,
						       const char **alias_id,
						       int num_id)
{
	return 0;
}

static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
							  const char **id,
							  int num_id)
{
}

static inline int devm_regulator_register_supply_alias(struct device *dev,
						       const char *id,
						       struct device *alias_dev,
						       const char *alias_id)
{
	return 0;
}

static inline void devm_regulator_unregister_supply_alias(struct device *dev,
							  const char *id)
{
}

static inline int devm_regulator_bulk_register_supply_alias(
		struct device *dev, const char **id, struct device *alias_dev,
		const char **alias_id, int num_id)
{
	return 0;
}

static inline void devm_regulator_bulk_unregister_supply_alias(
		struct device *dev, const char **id, int num_id)
{
}

static inline int regulator_enable(struct regulator *regulator)
{
	return 0;
}

static inline int regulator_disable(struct regulator *regulator)
{
	return 0;
}

static inline int regulator_force_disable(struct regulator *regulator)
{
	return 0;
}

static inline int regulator_disable_deferred(struct regulator *regulator,
					     int ms)
{
	return 0;
}

static inline int regulator_is_enabled(struct regulator *regulator)
{
	return 1;
}

static inline int regulator_bulk_get(struct device *dev,
				     int num_consumers,
				     struct regulator_bulk_data *consumers)
{
	return 0;
}

static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
					  struct regulator_bulk_data *consumers)
{
	return 0;
}

static inline int regulator_bulk_enable(int num_consumers,
					struct regulator_bulk_data *consumers)
{
	return 0;
}

static inline int regulator_bulk_disable(int num_consumers,
					 struct regulator_bulk_data *consumers)
{
	return 0;
}

static inline int regulator_bulk_force_disable(int num_consumers,
					struct regulator_bulk_data *consumers)
{
	return 0;
}

static inline void regulator_bulk_free(int num_consumers,
				       struct regulator_bulk_data *consumers)
{
}

static inline int regulator_set_voltage(struct regulator *regulator,
					int min_uV, int max_uV)
{
	return 0;
}

static inline int regulator_get_voltage(struct regulator *regulator)
{
	return -EINVAL;
}

static inline int regulator_is_supported_voltage(struct regulator *regulator,
				   int min_uV, int max_uV)
{
	return 0;
}

static inline int regulator_set_current_limit(struct regulator *regulator,
					     int min_uA, int max_uA)
{
	return 0;
}

static inline int regulator_get_current_limit(struct regulator *regulator)
{
	return 0;
}

static inline int regulator_set_mode(struct regulator *regulator,
	unsigned int mode)
{
	return 0;
}

static inline unsigned int regulator_get_mode(struct regulator *regulator)
{
	return REGULATOR_MODE_NORMAL;
}

static inline int regulator_set_optimum_mode(struct regulator *regulator,
					int load_uA)
{
	return REGULATOR_MODE_NORMAL;
}

static inline int regulator_allow_bypass(struct regulator *regulator,
					 bool allow)
{
	return 0;
}

static inline int regulator_register_notifier(struct regulator *regulator,
			      struct notifier_block *nb)
{
	return 0;
}

static inline int regulator_unregister_notifier(struct regulator *regulator,
				struct notifier_block *nb)
{
	return 0;
}

static inline void *regulator_get_drvdata(struct regulator *regulator)
{
	return NULL;
}

static inline void regulator_set_drvdata(struct regulator *regulator,
	void *data)
{
}

static inline int regulator_count_voltages(struct regulator *regulator)
{
	return 0;
}
#endif

static inline int regulator_set_voltage_tol(struct regulator *regulator,
					    int new_uV, int tol_uV)
{
	if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0)
		return 0;
	else
		return regulator_set_voltage(regulator,
					     new_uV - tol_uV, new_uV + tol_uV);
}

static inline int regulator_is_supported_voltage_tol(struct regulator *regulator,
						     int target_uV, int tol_uV)
{
	return regulator_is_supported_voltage(regulator,
					      target_uV - tol_uV,
					      target_uV + tol_uV);
}

#endif
Commit	Line	Data
e2ce4eaa LG	1	/*
	2	* consumer.h -- SoC Regulator consumer support.
	3	*
	4	* Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
	5	*
1dd68f01	6	* Author: Liam Girdwood <lrg@slimlogic.co.uk>
e2ce4eaa LG	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*
	12	* Regulator Consumer Interface.
	13	*
	14	* A Power Management Regulator framework for SoC based devices.
	15	* Features:-
	16	* o Voltage and current level control.
	17	* o Operating mode control.
	18	* o Regulator status.
	19	* o sysfs entries for showing client devices and status
	20	*
	21	* EXPERIMENTAL FEATURES:
	22	* Dynamic Regulator operating Mode Switching (DRMS) - allows regulators
	23	* to use most efficient operating mode depending upon voltage and load and
	24	* is transparent to client drivers.
	25	*
	26	* e.g. Devices x,y,z share regulator r. Device x and y draw 20mA each during
	27	* IO and 1mA at idle. Device z draws 100mA when under load and 5mA when
	28	* idling. Regulator r has > 90% efficiency in NORMAL mode at loads > 100mA
	29	* but this drops rapidly to 60% when below 100mA. Regulator r has > 90%
	30	* efficiency in IDLE mode at loads < 10mA. Thus regulator r will operate
	31	* in normal mode for loads > 10mA and in IDLE mode for load <= 10mA.
	32	*
	33	*/
	34
	35	#ifndef __LINUX_REGULATOR_CONSUMER_H_
	36	#define __LINUX_REGULATOR_CONSUMER_H_
	37
313162d0 PG	38	struct device;
313162d0 PG	39	struct notifier_block;
b56daf13	40
e2ce4eaa LG	41	/*
	42	* Regulator operating modes.
	43	*
	44	* Regulators can run in a variety of different operating modes depending on
	45	* output load. This allows further system power savings by selecting the
	46	* best (and most efficient) regulator mode for a desired load.
	47	*
	48	* Most drivers will only care about NORMAL. The modes below are generic and
	49	* will probably not match the naming convention of your regulator data sheet
	50	* but should match the use cases in the datasheet.
	51	*
	52	* In order of power efficiency (least efficient at top).
	53	*
	54	* Mode Description
	55	* FAST Regulator can handle fast changes in it's load.
	56	* e.g. useful in CPU voltage & frequency scaling where
	57	* load can quickly increase with CPU frequency increases.
	58	*
	59	* NORMAL Normal regulator power supply mode. Most drivers will
	60	* use this mode.
	61	*
	62	* IDLE Regulator runs in a more efficient mode for light
	63	* loads. Can be used for devices that have a low power
	64	* requirement during periods of inactivity. This mode
	65	* may be more noisy than NORMAL and may not be able
	66	* to handle fast load switching.
	67	*
	68	* STANDBY Regulator runs in the most efficient mode for very
	69	* light loads. Can be used by devices when they are
	70	* in a sleep/standby state. This mode is likely to be
	71	* the most noisy and may not be able to handle fast load
	72	* switching.
	73	*
	74	* NOTE: Most regulators will only support a subset of these modes. Some
	75	* will only just support NORMAL.
	76	*
	77	* These modes can be OR'ed together to make up a mask of valid register modes.
	78	*/
	79
	80	#define REGULATOR_MODE_FAST 0x1
	81	#define REGULATOR_MODE_NORMAL 0x2
	82	#define REGULATOR_MODE_IDLE 0x4
	83	#define REGULATOR_MODE_STANDBY 0x8
	84
	85	/*
	86	* Regulator notifier events.
	87	*
	88	* UNDER_VOLTAGE Regulator output is under voltage.
	89	* OVER_CURRENT Regulator output current is too high.
	90	* REGULATION_OUT Regulator output is out of regulation.
	91	* FAIL Regulator output has failed.
	92	* OVER_TEMP Regulator over temp.
84b68263	93	* FORCE_DISABLE Regulator forcibly shut down by software.
b136fb44	94	* VOLTAGE_CHANGE Regulator voltage changed.
84b68263	95	* DISABLE Regulator was disabled.
e2ce4eaa LG	96	*
	97	* NOTE: These events can be OR'ed together when passed into handler.
	98	*/
	99
	100	#define REGULATOR_EVENT_UNDER_VOLTAGE 0x01
	101	#define REGULATOR_EVENT_OVER_CURRENT 0x02
	102	#define REGULATOR_EVENT_REGULATION_OUT 0x04
	103	#define REGULATOR_EVENT_FAIL 0x08
	104	#define REGULATOR_EVENT_OVER_TEMP 0x10
	105	#define REGULATOR_EVENT_FORCE_DISABLE 0x20
b136fb44	106	#define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40
84b68263	107	#define REGULATOR_EVENT_DISABLE 0x80
e2ce4eaa LG	108
	109	struct regulator;
	110
	111	/**
	112	* struct regulator_bulk_data - Data used for bulk regulator operations.
	113	*
69279fb9 MB	114	* @supply: The name of the supply. Initialised by the user before
	115	* using the bulk regulator APIs.
	116	* @consumer: The regulator consumer for the supply. This will be managed
	117	* by the bulk API.
e2ce4eaa LG	118	*
	119	* The regulator APIs provide a series of regulator_bulk_() API calls as
	120	* a convenience to consumers which require multiple supplies. This
	121	* structure is used to manage data for these calls.
	122	*/
	123	struct regulator_bulk_data {
	124	const char *supply;
	125	struct regulator *consumer;
f21e0e81	126
bff747c5	127	/* private: Internal use */
f21e0e81	128	int ret;
e2ce4eaa LG	129	};
	130
	131	#if defined(CONFIG_REGULATOR)
	132
	133	/* regulator get and put */
	134	struct regulator __must_check regulator_get(struct device dev,
	135	const char *id);
070b9079 SB	136	struct regulator __must_check devm_regulator_get(struct device dev,
070b9079 SB	137	const char *id);
5ffbd136 MB	138	struct regulator __must_check regulator_get_exclusive(struct device dev,
5ffbd136 MB	139	const char *id);
9efdd276 MK	140	struct regulator __must_check devm_regulator_get_exclusive(struct device dev,
9efdd276 MK	141	const char *id);
de1dd9fd MB	142	struct regulator __must_check regulator_get_optional(struct device dev,
	143	const char *id);
	144	struct regulator __must_check devm_regulator_get_optional(struct device dev,
	145	const char *id);
e2ce4eaa	146	void regulator_put(struct regulator *regulator);
2950c4bb	147	void devm_regulator_put(struct regulator *regulator);
e2ce4eaa	148
a06ccd9c CK	149	int regulator_register_supply_alias(struct device dev, const char id,
	150	struct device *alias_dev,
	151	const char *alias_id);
	152	void regulator_unregister_supply_alias(struct device dev, const char id);
	153
	154	int regulator_bulk_register_supply_alias(struct device dev, const char *id,
	155	struct device *alias_dev,
	156	const char **alias_id, int num_id);
	157	void regulator_bulk_unregister_supply_alias(struct device *dev,
	158	const char **id, int num_id);
	159
	160	int devm_regulator_register_supply_alias(struct device dev, const char id,
	161	struct device *alias_dev,
	162	const char *alias_id);
	163	void devm_regulator_unregister_supply_alias(struct device *dev,
	164	const char *id);
	165
	166	int devm_regulator_bulk_register_supply_alias(struct device *dev,
	167	const char **id,
	168	struct device *alias_dev,
	169	const char **alias_id,
	170	int num_id);
	171	void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
	172	const char **id,
	173	int num_id);
	174
e2ce4eaa	175	/* regulator output control and status */
c8801a8e	176	int __must_check regulator_enable(struct regulator *regulator);
e2ce4eaa LG	177	int regulator_disable(struct regulator *regulator);
	178	int regulator_force_disable(struct regulator *regulator);
	179	int regulator_is_enabled(struct regulator *regulator);
da07ecd9	180	int regulator_disable_deferred(struct regulator *regulator, int ms);
e2ce4eaa	181
c8801a8e MB	182	int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
	183	struct regulator_bulk_data *consumers);
	184	int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
	185	struct regulator_bulk_data *consumers);
	186	int __must_check regulator_bulk_enable(int num_consumers,
	187	struct regulator_bulk_data *consumers);
e2ce4eaa LG	188	int regulator_bulk_disable(int num_consumers,
e2ce4eaa LG	189	struct regulator_bulk_data *consumers);
e1de2f42 DK	190	int regulator_bulk_force_disable(int num_consumers,
e1de2f42 DK	191	struct regulator_bulk_data *consumers);
e2ce4eaa LG	192	void regulator_bulk_free(int num_consumers,
	193	struct regulator_bulk_data *consumers);
	194
d1e7de30	195	int regulator_can_change_voltage(struct regulator *regulator);
4367cfdc DB	196	int regulator_count_voltages(struct regulator *regulator);
4367cfdc DB	197	int regulator_list_voltage(struct regulator *regulator, unsigned selector);
a7a1ad90 MB	198	int regulator_is_supported_voltage(struct regulator *regulator,
a7a1ad90 MB	199	int min_uV, int max_uV);
2a668a8b	200	unsigned int regulator_get_linear_step(struct regulator *regulator);
e2ce4eaa	201	int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
88cd222b LW	202	int regulator_set_voltage_time(struct regulator *regulator,
88cd222b LW	203	int old_uV, int new_uV);
e2ce4eaa	204	int regulator_get_voltage(struct regulator *regulator);
606a2562	205	int regulator_sync_voltage(struct regulator *regulator);
e2ce4eaa LG	206	int regulator_set_current_limit(struct regulator *regulator,
	207	int min_uA, int max_uA);
	208	int regulator_get_current_limit(struct regulator *regulator);
	209
	210	int regulator_set_mode(struct regulator *regulator, unsigned int mode);
	211	unsigned int regulator_get_mode(struct regulator *regulator);
	212	int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);
	213
f59c8f9f MB	214	int regulator_allow_bypass(struct regulator *regulator, bool allow);
f59c8f9f MB	215
e2ce4eaa LG	216	/* regulator notifier block */
	217	int regulator_register_notifier(struct regulator *regulator,
	218	struct notifier_block *nb);
	219	int regulator_unregister_notifier(struct regulator *regulator,
	220	struct notifier_block *nb);
	221
	222	/* driver data - core doesn't touch */
	223	void regulator_get_drvdata(struct regulator regulator);
	224	void regulator_set_drvdata(struct regulator regulator, void data);
	225
	226	#else
	227
	228	/*
	229	* Make sure client drivers will still build on systems with no software
	230	* controllable voltage or current regulators.
	231	*/
	232	static inline struct regulator __must_check regulator_get(struct device dev,
	233	const char *id)
	234	{
	235	/* Nothing except the stubbed out regulator API should be
	236	* looking at the value except to check if it is an error
be1a50d4 JD	237	* value. Drivers are free to handle NULL specifically by
	238	* skipping all regulator API calls, but they don't have to.
	239	* Drivers which don't, should make sure they properly handle
	240	* corner cases of the API, such as regulator_get_voltage()
	241	* returning 0.
e2ce4eaa	242	*/
be1a50d4	243	return NULL;
e2ce4eaa	244	}
070b9079 SB	245
	246	static inline struct regulator *__must_check
	247	devm_regulator_get(struct device dev, const char id)
	248	{
	249	return NULL;
	250	}
	251
4bdfb272 MB	252	static inline struct regulator *__must_check
	253	regulator_get_exclusive(struct device dev, const char id)
	254	{
	255	return NULL;
	256	}
	257
de1dd9fd MB	258	static inline struct regulator *__must_check
	259	regulator_get_optional(struct device dev, const char id)
	260	{
	261	return NULL;
	262	}
	263
4bdfb272	264
070b9079	265	static inline struct regulator *__must_check
de1dd9fd	266	devm_regulator_get_optional(struct device dev, const char id)
070b9079 SB	267	{
	268	return NULL;
	269	}
	270
e2ce4eaa LG	271	static inline void regulator_put(struct regulator *regulator)
	272	{
	273	}
	274
2950c4bb AL	275	static inline void devm_regulator_put(struct regulator *regulator)
	276	{
	277	}
	278
a06ccd9c CK	279	static inline int regulator_register_supply_alias(struct device *dev,
	280	const char *id,
	281	struct device *alias_dev,
	282	const char *alias_id)
	283	{
	284	return 0;
	285	}
	286
	287	static inline void regulator_unregister_supply_alias(struct device *dev,
	288	const char *id)
	289	{
	290	}
	291
	292	static inline int regulator_bulk_register_supply_alias(struct device *dev,
	293	const char **id,
	294	struct device *alias_dev,
	295	const char **alias_id,
	296	int num_id)
	297	{
	298	return 0;
	299	}
	300
	301	static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
	302	const char **id,
	303	int num_id)
	304	{
	305	}
	306
	307	static inline int devm_regulator_register_supply_alias(struct device *dev,
	308	const char *id,
	309	struct device *alias_dev,
	310	const char *alias_id)
	311	{
	312	return 0;
	313	}
	314
	315	static inline void devm_regulator_unregister_supply_alias(struct device *dev,
	316	const char *id)
	317	{
	318	}
	319
	320	static inline int devm_regulator_bulk_register_supply_alias(
	321	struct device dev, const char id, struct device alias_dev,
	322	const char **alias_id, int num_id)
	323	{
	324	return 0;
	325	}
	326
	327	static inline void devm_regulator_bulk_unregister_supply_alias(
	328	struct device dev, const char *id, int num_id)
	329	{
	330	}
	331
e2ce4eaa LG	332	static inline int regulator_enable(struct regulator *regulator)
	333	{
	334	return 0;
	335	}
	336
	337	static inline int regulator_disable(struct regulator *regulator)
	338	{
	339	return 0;
	340	}
	341
935a5210 MH	342	static inline int regulator_force_disable(struct regulator *regulator)
	343	{
	344	return 0;
	345	}
	346
da07ecd9 MB	347	static inline int regulator_disable_deferred(struct regulator *regulator,
	348	int ms)
	349	{
	350	return 0;
	351	}
	352
e2ce4eaa LG	353	static inline int regulator_is_enabled(struct regulator *regulator)
	354	{
	355	return 1;
	356	}
	357
	358	static inline int regulator_bulk_get(struct device *dev,
	359	int num_consumers,
	360	struct regulator_bulk_data *consumers)
	361	{
	362	return 0;
	363	}
	364
e24abd6e AL	365	static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
	366	struct regulator_bulk_data *consumers)
	367	{
	368	return 0;
	369	}
	370
e2ce4eaa LG	371	static inline int regulator_bulk_enable(int num_consumers,
	372	struct regulator_bulk_data *consumers)
	373	{
	374	return 0;
	375	}
	376
	377	static inline int regulator_bulk_disable(int num_consumers,
	378	struct regulator_bulk_data *consumers)
	379	{
	380	return 0;
	381	}
	382
e1de2f42 DK	383	static inline int regulator_bulk_force_disable(int num_consumers,
	384	struct regulator_bulk_data *consumers)
	385	{
	386	return 0;
	387	}
	388
e2ce4eaa LG	389	static inline void regulator_bulk_free(int num_consumers,
	390	struct regulator_bulk_data *consumers)
	391	{
	392	}
	393
	394	static inline int regulator_set_voltage(struct regulator *regulator,
	395	int min_uV, int max_uV)
	396	{
	397	return 0;
	398	}
	399
	400	static inline int regulator_get_voltage(struct regulator *regulator)
	401	{
08aed2f6	402	return -EINVAL;
e2ce4eaa LG	403	}
e2ce4eaa LG	404
4fe23791 PR	405	static inline int regulator_is_supported_voltage(struct regulator *regulator,
	406	int min_uV, int max_uV)
	407	{
	408	return 0;
	409	}
	410
e2ce4eaa LG	411	static inline int regulator_set_current_limit(struct regulator *regulator,
	412	int min_uA, int max_uA)
	413	{
	414	return 0;
	415	}
	416
	417	static inline int regulator_get_current_limit(struct regulator *regulator)
	418	{
	419	return 0;
	420	}
	421
	422	static inline int regulator_set_mode(struct regulator *regulator,
	423	unsigned int mode)
	424	{
	425	return 0;
	426	}
	427
	428	static inline unsigned int regulator_get_mode(struct regulator *regulator)
	429	{
	430	return REGULATOR_MODE_NORMAL;
	431	}
	432
	433	static inline int regulator_set_optimum_mode(struct regulator *regulator,
	434	int load_uA)
	435	{
	436	return REGULATOR_MODE_NORMAL;
	437	}
	438
f59c8f9f MB	439	static inline int regulator_allow_bypass(struct regulator *regulator,
	440	bool allow)
	441	{
	442	return 0;
	443	}
	444
e2ce4eaa LG	445	static inline int regulator_register_notifier(struct regulator *regulator,
	446	struct notifier_block *nb)
	447	{
	448	return 0;
	449	}
	450
	451	static inline int regulator_unregister_notifier(struct regulator *regulator,
	452	struct notifier_block *nb)
	453	{
	454	return 0;
	455	}
	456
	457	static inline void regulator_get_drvdata(struct regulator regulator)
	458	{
	459	return NULL;
	460	}
	461
	462	static inline void regulator_set_drvdata(struct regulator *regulator,
	463	void *data)
	464	{
	465	}
	466
1a8f85d4 PR	467	static inline int regulator_count_voltages(struct regulator *regulator)
	468	{
	469	return 0;
	470	}
e2ce4eaa LG	471	#endif
e2ce4eaa LG	472
3f196577 SG	473	static inline int regulator_set_voltage_tol(struct regulator *regulator,
	474	int new_uV, int tol_uV)
	475	{
dc9ceed6 MB	476	if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0)
	477	return 0;
	478	else
	479	return regulator_set_voltage(regulator,
	480	new_uV - tol_uV, new_uV + tol_uV);
3f196577 SG	481	}
3f196577 SG	482
fe1e43f7 MB	483	static inline int regulator_is_supported_voltage_tol(struct regulator *regulator,
	484	int target_uV, int tol_uV)
	485	{
	486	return regulator_is_supported_voltage(regulator,
	487	target_uV - tol_uV,
	488	target_uV + tol_uV);
	489	}
	490
e2ce4eaa	491	#endif