[deliverable/linux.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);
void regulator_put(struct regulator *regulator);
void devm_regulator_put(struct regulator *regulator);

/* regulator output control and status */
int 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 regulator_bulk_get(struct device *dev, int num_consumers,
		       struct regulator_bulk_data *consumers);
int devm_regulator_bulk_get(struct device *dev, int num_consumers,
			    struct regulator_bulk_data *consumers);
int 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_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);
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 void regulator_put(struct regulator *regulator)
{
}

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

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)
{
	return regulator_set_voltage(regulator,
				     new_uV - tol_uV, new_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);
e2ce4eaa	140	void regulator_put(struct regulator *regulator);
2950c4bb	141	void devm_regulator_put(struct regulator *regulator);
e2ce4eaa LG	142
	143	/* regulator output control and status */
	144	int regulator_enable(struct regulator *regulator);
	145	int regulator_disable(struct regulator *regulator);
	146	int regulator_force_disable(struct regulator *regulator);
	147	int regulator_is_enabled(struct regulator *regulator);
da07ecd9	148	int regulator_disable_deferred(struct regulator *regulator, int ms);
e2ce4eaa LG	149
	150	int regulator_bulk_get(struct device *dev, int num_consumers,
	151	struct regulator_bulk_data *consumers);
e6e74030 MB	152	int devm_regulator_bulk_get(struct device *dev, int num_consumers,
e6e74030 MB	153	struct regulator_bulk_data *consumers);
e2ce4eaa LG	154	int regulator_bulk_enable(int num_consumers,
	155	struct regulator_bulk_data *consumers);
	156	int regulator_bulk_disable(int num_consumers,
	157	struct regulator_bulk_data *consumers);
e1de2f42 DK	158	int regulator_bulk_force_disable(int num_consumers,
e1de2f42 DK	159	struct regulator_bulk_data *consumers);
e2ce4eaa LG	160	void regulator_bulk_free(int num_consumers,
	161	struct regulator_bulk_data *consumers);
	162
4367cfdc DB	163	int regulator_count_voltages(struct regulator *regulator);
4367cfdc DB	164	int regulator_list_voltage(struct regulator *regulator, unsigned selector);
a7a1ad90 MB	165	int regulator_is_supported_voltage(struct regulator *regulator,
a7a1ad90 MB	166	int min_uV, int max_uV);
e2ce4eaa	167	int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
88cd222b LW	168	int regulator_set_voltage_time(struct regulator *regulator,
88cd222b LW	169	int old_uV, int new_uV);
e2ce4eaa	170	int regulator_get_voltage(struct regulator *regulator);
606a2562	171	int regulator_sync_voltage(struct regulator *regulator);
e2ce4eaa LG	172	int regulator_set_current_limit(struct regulator *regulator,
	173	int min_uA, int max_uA);
	174	int regulator_get_current_limit(struct regulator *regulator);
	175
	176	int regulator_set_mode(struct regulator *regulator, unsigned int mode);
	177	unsigned int regulator_get_mode(struct regulator *regulator);
	178	int regulator_set_optimum_mode(struct regulator *regulator, int load_uA);
	179
f59c8f9f MB	180	int regulator_allow_bypass(struct regulator *regulator, bool allow);
f59c8f9f MB	181
e2ce4eaa LG	182	/* regulator notifier block */
	183	int regulator_register_notifier(struct regulator *regulator,
	184	struct notifier_block *nb);
	185	int regulator_unregister_notifier(struct regulator *regulator,
	186	struct notifier_block *nb);
	187
	188	/* driver data - core doesn't touch */
	189	void regulator_get_drvdata(struct regulator regulator);
	190	void regulator_set_drvdata(struct regulator regulator, void data);
	191
	192	#else
	193
	194	/*
	195	* Make sure client drivers will still build on systems with no software
	196	* controllable voltage or current regulators.
	197	*/
	198	static inline struct regulator __must_check regulator_get(struct device dev,
	199	const char *id)
	200	{
	201	/* Nothing except the stubbed out regulator API should be
	202	* looking at the value except to check if it is an error
be1a50d4 JD	203	* value. Drivers are free to handle NULL specifically by
	204	* skipping all regulator API calls, but they don't have to.
	205	* Drivers which don't, should make sure they properly handle
	206	* corner cases of the API, such as regulator_get_voltage()
	207	* returning 0.
e2ce4eaa	208	*/
be1a50d4	209	return NULL;
e2ce4eaa	210	}
070b9079 SB	211
	212	static inline struct regulator *__must_check
	213	devm_regulator_get(struct device dev, const char id)
	214	{
	215	return NULL;
	216	}
	217
e2ce4eaa LG	218	static inline void regulator_put(struct regulator *regulator)
	219	{
	220	}
	221
2950c4bb AL	222	static inline void devm_regulator_put(struct regulator *regulator)
	223	{
	224	}
	225
e2ce4eaa LG	226	static inline int regulator_enable(struct regulator *regulator)
	227	{
	228	return 0;
	229	}
	230
	231	static inline int regulator_disable(struct regulator *regulator)
	232	{
	233	return 0;
	234	}
	235
935a5210 MH	236	static inline int regulator_force_disable(struct regulator *regulator)
	237	{
	238	return 0;
	239	}
	240
da07ecd9 MB	241	static inline int regulator_disable_deferred(struct regulator *regulator,
	242	int ms)
	243	{
	244	return 0;
	245	}
	246
e2ce4eaa LG	247	static inline int regulator_is_enabled(struct regulator *regulator)
	248	{
	249	return 1;
	250	}
	251
	252	static inline int regulator_bulk_get(struct device *dev,
	253	int num_consumers,
	254	struct regulator_bulk_data *consumers)
	255	{
	256	return 0;
	257	}
	258
e24abd6e AL	259	static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
	260	struct regulator_bulk_data *consumers)
	261	{
	262	return 0;
	263	}
	264
e2ce4eaa LG	265	static inline int regulator_bulk_enable(int num_consumers,
	266	struct regulator_bulk_data *consumers)
	267	{
	268	return 0;
	269	}
	270
	271	static inline int regulator_bulk_disable(int num_consumers,
	272	struct regulator_bulk_data *consumers)
	273	{
	274	return 0;
	275	}
	276
e1de2f42 DK	277	static inline int regulator_bulk_force_disable(int num_consumers,
	278	struct regulator_bulk_data *consumers)
	279	{
	280	return 0;
	281	}
	282
e2ce4eaa LG	283	static inline void regulator_bulk_free(int num_consumers,
	284	struct regulator_bulk_data *consumers)
	285	{
	286	}
	287
	288	static inline int regulator_set_voltage(struct regulator *regulator,
	289	int min_uV, int max_uV)
	290	{
	291	return 0;
	292	}
	293
	294	static inline int regulator_get_voltage(struct regulator *regulator)
	295	{
08aed2f6	296	return -EINVAL;
e2ce4eaa LG	297	}
e2ce4eaa LG	298
4fe23791 PR	299	static inline int regulator_is_supported_voltage(struct regulator *regulator,
	300	int min_uV, int max_uV)
	301	{
	302	return 0;
	303	}
	304
e2ce4eaa LG	305	static inline int regulator_set_current_limit(struct regulator *regulator,
	306	int min_uA, int max_uA)
	307	{
	308	return 0;
	309	}
	310
	311	static inline int regulator_get_current_limit(struct regulator *regulator)
	312	{
	313	return 0;
	314	}
	315
	316	static inline int regulator_set_mode(struct regulator *regulator,
	317	unsigned int mode)
	318	{
	319	return 0;
	320	}
	321
	322	static inline unsigned int regulator_get_mode(struct regulator *regulator)
	323	{
	324	return REGULATOR_MODE_NORMAL;
	325	}
	326
	327	static inline int regulator_set_optimum_mode(struct regulator *regulator,
	328	int load_uA)
	329	{
	330	return REGULATOR_MODE_NORMAL;
	331	}
	332
f59c8f9f MB	333	static inline int regulator_allow_bypass(struct regulator *regulator,
	334	bool allow)
	335	{
	336	return 0;
	337	}
	338
e2ce4eaa LG	339	static inline int regulator_register_notifier(struct regulator *regulator,
	340	struct notifier_block *nb)
	341	{
	342	return 0;
	343	}
	344
	345	static inline int regulator_unregister_notifier(struct regulator *regulator,
	346	struct notifier_block *nb)
	347	{
	348	return 0;
	349	}
	350
	351	static inline void regulator_get_drvdata(struct regulator regulator)
	352	{
	353	return NULL;
	354	}
	355
	356	static inline void regulator_set_drvdata(struct regulator *regulator,
	357	void *data)
	358	{
	359	}
	360
1a8f85d4 PR	361	static inline int regulator_count_voltages(struct regulator *regulator)
	362	{
	363	return 0;
	364	}
e2ce4eaa LG	365	#endif
e2ce4eaa LG	366
3f196577 SG	367	static inline int regulator_set_voltage_tol(struct regulator *regulator,
	368	int new_uV, int tol_uV)
	369	{
	370	return regulator_set_voltage(regulator,
	371	new_uV - tol_uV, new_uV + tol_uV);
	372	}
	373
e2ce4eaa	374	#endif