]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blame - include/linux/regulator/consumer.h
projects / mirror_ubuntu-hirsute-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
UBUNTU: Ubuntu-5.11.0-22.23
[mirror_ubuntu-hirsute-kernel.git] / include / linux / regulator / consumer.h
CommitLineData
d2912cb1 1/* SPDX-License-Identifier: GPL-2.0-only */
e2ce4eaa
LG		 2/*
3 * consumer.h -- SoC Regulator consumer support.
4 *
5 * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
6 *
1dd68f01 7 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
e2ce4eaa 8 *
e2ce4eaa
LG		 9 * Regulator Consumer Interface.
10 *
11 * A Power Management Regulator framework for SoC based devices.
12 * Features:-
13 * o Voltage and current level control.
14 * o Operating mode control.
15 * o Regulator status.
16 * o sysfs entries for showing client devices and status
17 *
18 * EXPERIMENTAL FEATURES:
19 * Dynamic Regulator operating Mode Switching (DRMS) - allows regulators
20 * to use most efficient operating mode depending upon voltage and load and
21 * is transparent to client drivers.
22 *
23 * e.g. Devices x,y,z share regulator r. Device x and y draw 20mA each during
24 * IO and 1mA at idle. Device z draws 100mA when under load and 5mA when
25 * idling. Regulator r has > 90% efficiency in NORMAL mode at loads > 100mA
26 * but this drops rapidly to 60% when below 100mA. Regulator r has > 90%
27 * efficiency in IDLE mode at loads < 10mA. Thus regulator r will operate
28 * in normal mode for loads > 10mA and in IDLE mode for load <= 10mA.
e2ce4eaa
LG		 29 */
30
31#ifndef __LINUX_REGULATOR_CONSUMER_H_
32#define __LINUX_REGULATOR_CONSUMER_H_
33
174e964e 34#include <linux/err.h>
da669076 35#include <linux/suspend.h>
174e964e 36
313162d0
PG		 37struct device;
38struct notifier_block;
04eca28c 39struct regmap;
da669076 40struct regulator_dev;
b56daf13 41
e2ce4eaa
LG		 42/*
43 * Regulator operating modes.
44 *
45 * Regulators can run in a variety of different operating modes depending on
46 * output load. This allows further system power savings by selecting the
47 * best (and most efficient) regulator mode for a desired load.
48 *
49 * Most drivers will only care about NORMAL. The modes below are generic and
50 * will probably not match the naming convention of your regulator data sheet
51 * but should match the use cases in the datasheet.
52 *
53 * In order of power efficiency (least efficient at top).
54 *
55 * Mode Description
56 * FAST Regulator can handle fast changes in it's load.
57 * e.g. useful in CPU voltage & frequency scaling where
58 * load can quickly increase with CPU frequency increases.
59 *
60 * NORMAL Normal regulator power supply mode. Most drivers will
61 * use this mode.
62 *
63 * IDLE Regulator runs in a more efficient mode for light
64 * loads. Can be used for devices that have a low power
65 * requirement during periods of inactivity. This mode
66 * may be more noisy than NORMAL and may not be able
67 * to handle fast load switching.
68 *
69 * STANDBY Regulator runs in the most efficient mode for very
70 * light loads. Can be used by devices when they are
71 * in a sleep/standby state. This mode is likely to be
72 * the most noisy and may not be able to handle fast load
73 * switching.
74 *
75 * NOTE: Most regulators will only support a subset of these modes. Some
76 * will only just support NORMAL.
77 *
78 * These modes can be OR'ed together to make up a mask of valid register modes.
79 */
80
02f37039 81#define REGULATOR_MODE_INVALID 0x0
e2ce4eaa
LG		 82#define REGULATOR_MODE_FAST 0x1
83#define REGULATOR_MODE_NORMAL 0x2
84#define REGULATOR_MODE_IDLE 0x4
85#define REGULATOR_MODE_STANDBY 0x8
86
87/*
88 * Regulator notifier events.
89 *
90 * UNDER_VOLTAGE Regulator output is under voltage.
91 * OVER_CURRENT Regulator output current is too high.
92 * REGULATION_OUT Regulator output is out of regulation.
93 * FAIL Regulator output has failed.
94 * OVER_TEMP Regulator over temp.
84b68263 95 * FORCE_DISABLE Regulator forcibly shut down by software.
b136fb44 96 * VOLTAGE_CHANGE Regulator voltage changed.
7179569a 97 * Data passed is old voltage cast to (void *).
84b68263 98 * DISABLE Regulator was disabled.
7179569a
HS		 99 * PRE_VOLTAGE_CHANGE Regulator is about to have voltage changed.
100 * Data passed is "struct pre_voltage_change_data"
101 * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
102 * Data passed is old voltage cast to (void *).
a1c8a551
RF		 103 * PRE_DISABLE Regulator is about to be disabled
104 * ABORT_DISABLE Regulator disable failed for some reason
e2ce4eaa
LG		 105 *
106 * NOTE: These events can be OR'ed together when passed into handler.
107 */
108
109#define REGULATOR_EVENT_UNDER_VOLTAGE 0x01
110#define REGULATOR_EVENT_OVER_CURRENT 0x02
111#define REGULATOR_EVENT_REGULATION_OUT 0x04
112#define REGULATOR_EVENT_FAIL 0x08
113#define REGULATOR_EVENT_OVER_TEMP 0x10
114#define REGULATOR_EVENT_FORCE_DISABLE 0x20
b136fb44 115#define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40
5c9e7196 116#define REGULATOR_EVENT_DISABLE 0x80
7179569a
HS		 117#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100
118#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200
a1c8a551
RF		 119#define REGULATOR_EVENT_PRE_DISABLE 0x400
120#define REGULATOR_EVENT_ABORT_DISABLE 0x800
264b88c9 121#define REGULATOR_EVENT_ENABLE 0x1000
7179569a 122
1b5b4221
AH		 123/*
124 * Regulator errors that can be queried using regulator_get_error_flags
125 *
126 * UNDER_VOLTAGE Regulator output is under voltage.
127 * OVER_CURRENT Regulator output current is too high.
128 * REGULATION_OUT Regulator output is out of regulation.
129 * FAIL Regulator output has failed.
130 * OVER_TEMP Regulator over temp.
131 *
132 * NOTE: These errors can be OR'ed together.
133 */
134
135#define REGULATOR_ERROR_UNDER_VOLTAGE BIT(1)
136#define REGULATOR_ERROR_OVER_CURRENT BIT(2)
137#define REGULATOR_ERROR_REGULATION_OUT BIT(3)
138#define REGULATOR_ERROR_FAIL BIT(4)
139#define REGULATOR_ERROR_OVER_TEMP BIT(5)
140
141
7179569a
HS		 142/**
143 * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
144 *
145 * @old_uV: Current voltage before change.
146 * @min_uV: Min voltage we'll change to.
147 * @max_uV: Max voltage we'll change to.
148 */
149struct pre_voltage_change_data {
150 unsigned long old_uV;
151 unsigned long min_uV;
152 unsigned long max_uV;
153};
e2ce4eaa
LG		 154
155struct regulator;
156
157/**
158 * struct regulator_bulk_data - Data used for bulk regulator operations.
159 *
69279fb9
MB		 160 * @supply: The name of the supply. Initialised by the user before
161 * using the bulk regulator APIs.
162 * @consumer: The regulator consumer for the supply. This will be managed
163 * by the bulk API.
e2ce4eaa
LG		 164 *
165 * The regulator APIs provide a series of regulator_bulk_() API calls as
166 * a convenience to consumers which require multiple supplies. This
167 * structure is used to manage data for these calls.
168 */
169struct regulator_bulk_data {
170 const char *supply;
171 struct regulator *consumer;
f21e0e81 172
bff747c5 173 /* private: Internal use */
f21e0e81 174 int ret;
e2ce4eaa
LG		 175};
176
177#if defined(CONFIG_REGULATOR)
178
179/* regulator get and put */
180struct regulator *__must_check regulator_get(struct device *dev,
181 const char *id);
070b9079
SB		 182struct regulator *__must_check devm_regulator_get(struct device *dev,
183 const char *id);
5ffbd136
MB		 184struct regulator *__must_check regulator_get_exclusive(struct device *dev,
185 const char *id);
9efdd276
MK		 186struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev,
187 const char *id);
de1dd9fd
MB		 188struct regulator *__must_check regulator_get_optional(struct device *dev,
189 const char *id);
190struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
191 const char *id);
e2ce4eaa 192void regulator_put(struct regulator *regulator);
2950c4bb 193void devm_regulator_put(struct regulator *regulator);
e2ce4eaa 194
a06ccd9c
CK		 195int regulator_register_supply_alias(struct device *dev, const char *id,
196 struct device *alias_dev,
197 const char *alias_id);
198void regulator_unregister_supply_alias(struct device *dev, const char *id);
199
9f8c0fe9
LJ		 200int regulator_bulk_register_supply_alias(struct device *dev,
201 const char *const *id,
a06ccd9c 202 struct device *alias_dev,
9f8c0fe9
LJ		 203 const char *const *alias_id,
204 int num_id);
a06ccd9c 205void regulator_bulk_unregister_supply_alias(struct device *dev,
9f8c0fe9 206 const char * const *id, int num_id);
a06ccd9c
CK		 207
208int devm_regulator_register_supply_alias(struct device *dev, const char *id,
209 struct device *alias_dev,
210 const char *alias_id);
211void devm_regulator_unregister_supply_alias(struct device *dev,
212 const char *id);
213
214int devm_regulator_bulk_register_supply_alias(struct device *dev,
9f8c0fe9 215 const char *const *id,
a06ccd9c 216 struct device *alias_dev,
9f8c0fe9 217 const char *const *alias_id,
a06ccd9c
CK		 218 int num_id);
219void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
9f8c0fe9 220 const char *const *id,
a06ccd9c
CK		 221 int num_id);
222
e2ce4eaa 223/* regulator output control and status */
c8801a8e 224int __must_check regulator_enable(struct regulator *regulator);
e2ce4eaa
LG		 225int regulator_disable(struct regulator *regulator);
226int regulator_force_disable(struct regulator *regulator);
227int regulator_is_enabled(struct regulator *regulator);
da07ecd9 228int regulator_disable_deferred(struct regulator *regulator, int ms);
e2ce4eaa 229
c8801a8e
MB		 230int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
231 struct regulator_bulk_data *consumers);
232int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
233 struct regulator_bulk_data *consumers);
234int __must_check regulator_bulk_enable(int num_consumers,
235 struct regulator_bulk_data *consumers);
e2ce4eaa
LG		 236int regulator_bulk_disable(int num_consumers,
237 struct regulator_bulk_data *consumers);
e1de2f42
DK		 238int regulator_bulk_force_disable(int num_consumers,
239 struct regulator_bulk_data *consumers);
e2ce4eaa
LG		 240void regulator_bulk_free(int num_consumers,
241 struct regulator_bulk_data *consumers);
242
4367cfdc
DB		 243int regulator_count_voltages(struct regulator *regulator);
244int regulator_list_voltage(struct regulator *regulator, unsigned selector);
a7a1ad90
MB		 245int regulator_is_supported_voltage(struct regulator *regulator,
246 int min_uV, int max_uV);
2a668a8b 247unsigned int regulator_get_linear_step(struct regulator *regulator);
e2ce4eaa 248int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
88cd222b
LW		 249int regulator_set_voltage_time(struct regulator *regulator,
250 int old_uV, int new_uV);
e2ce4eaa 251int regulator_get_voltage(struct regulator *regulator);
606a2562 252int regulator_sync_voltage(struct regulator *regulator);
e2ce4eaa
LG		 253int regulator_set_current_limit(struct regulator *regulator,
254 int min_uA, int max_uA);
255int regulator_get_current_limit(struct regulator *regulator);
256
257int regulator_set_mode(struct regulator *regulator, unsigned int mode);
258unsigned int regulator_get_mode(struct regulator *regulator);
1b5b4221
AH		 259int regulator_get_error_flags(struct regulator *regulator,
260 unsigned int *flags);
e39ce48f 261int regulator_set_load(struct regulator *regulator, int load_uA);
e2ce4eaa 262
f59c8f9f
MB		 263int regulator_allow_bypass(struct regulator *regulator, bool allow);
264
04eca28c
TT		 265struct regmap *regulator_get_regmap(struct regulator *regulator);
266int regulator_get_hardware_vsel_register(struct regulator *regulator,
267 unsigned *vsel_reg,
268 unsigned *vsel_mask);
269int regulator_list_hardware_vsel(struct regulator *regulator,
270 unsigned selector);
271
e2ce4eaa
LG		 272/* regulator notifier block */
273int regulator_register_notifier(struct regulator *regulator,
274 struct notifier_block *nb);
046db763
CK		 275int devm_regulator_register_notifier(struct regulator *regulator,
276 struct notifier_block *nb);
e2ce4eaa
LG		 277int regulator_unregister_notifier(struct regulator *regulator,
278 struct notifier_block *nb);
046db763
CK		 279void devm_regulator_unregister_notifier(struct regulator *regulator,
280 struct notifier_block *nb);
e2ce4eaa 281
da669076
LJ		 282/* regulator suspend */
283int regulator_suspend_enable(struct regulator_dev *rdev,
284 suspend_state_t state);
285int regulator_suspend_disable(struct regulator_dev *rdev,
286 suspend_state_t state);
287int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV,
288 int max_uV, suspend_state_t state);
289
e2ce4eaa
LG		 290/* driver data - core doesn't touch */
291void *regulator_get_drvdata(struct regulator *regulator);
292void regulator_set_drvdata(struct regulator *regulator, void *data);
293
d0087e72
BG		 294/* misc helpers */
295
296void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
297 const char *const *supply_names,
298 unsigned int num_supplies);
299
b059b7e0
MV		 300bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2);
301
e2ce4eaa
LG		 302#else
303
304/*
305 * Make sure client drivers will still build on systems with no software
306 * controllable voltage or current regulators.
307 */
308static inline struct regulator *__must_check regulator_get(struct device *dev,
309 const char *id)
310{
311 /* Nothing except the stubbed out regulator API should be
312 * looking at the value except to check if it is an error
be1a50d4
JD		 313 * value. Drivers are free to handle NULL specifically by
314 * skipping all regulator API calls, but they don't have to.
315 * Drivers which don't, should make sure they properly handle
316 * corner cases of the API, such as regulator_get_voltage()
317 * returning 0.
e2ce4eaa 318 */
be1a50d4 319 return NULL;
e2ce4eaa 320}
070b9079
SB		 321
322static inline struct regulator *__must_check
323devm_regulator_get(struct device *dev, const char *id)
324{
325 return NULL;
326}
327
4bdfb272
MB		 328static inline struct regulator *__must_check
329regulator_get_exclusive(struct device *dev, const char *id)
330{
70b946f9 331 return ERR_PTR(-ENODEV);
4bdfb272
MB		 332}
333
51dfb6ca
DO		 334static inline struct regulator *__must_check
335devm_regulator_get_exclusive(struct device *dev, const char *id)
336{
337 return ERR_PTR(-ENODEV);
338}
339
de1dd9fd
MB		 340static inline struct regulator *__must_check
341regulator_get_optional(struct device *dev, const char *id)
342{
df7926ff 343 return ERR_PTR(-ENODEV);
de1dd9fd
MB		 344}
345
4bdfb272 346
070b9079 347static inline struct regulator *__must_check
de1dd9fd 348devm_regulator_get_optional(struct device *dev, const char *id)
070b9079 349{
df7926ff 350 return ERR_PTR(-ENODEV);
070b9079
SB		 351}
352
e2ce4eaa
LG		 353static inline void regulator_put(struct regulator *regulator)
354{
355}
356
2950c4bb
AL		 357static inline void devm_regulator_put(struct regulator *regulator)
358{
359}
360
a06ccd9c
CK		 361static inline int regulator_register_supply_alias(struct device *dev,
362 const char *id,
363 struct device *alias_dev,
364 const char *alias_id)
365{
366 return 0;
367}
368
369static inline void regulator_unregister_supply_alias(struct device *dev,
370 const char *id)
371{
372}
373
374static inline int regulator_bulk_register_supply_alias(struct device *dev,
9f8c0fe9
LJ		 375 const char *const *id,
376 struct device *alias_dev,
377 const char * const *alias_id,
378 int num_id)
a06ccd9c
CK		 379{
380 return 0;
381}
382
383static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
9f8c0fe9
LJ		 384 const char * const *id,
385 int num_id)
a06ccd9c
CK		 386{
387}
388
389static inline int devm_regulator_register_supply_alias(struct device *dev,
390 const char *id,
391 struct device *alias_dev,
392 const char *alias_id)
393{
394 return 0;
395}
396
397static inline void devm_regulator_unregister_supply_alias(struct device *dev,
398 const char *id)
399{
400}
401
9f8c0fe9
LJ		 402static inline int devm_regulator_bulk_register_supply_alias(struct device *dev,
403 const char *const *id,
404 struct device *alias_dev,
405 const char *const *alias_id,
406 int num_id)
a06ccd9c
CK		 407{
408 return 0;
409}
410
411static inline void devm_regulator_bulk_unregister_supply_alias(
9f8c0fe9 412 struct device *dev, const char *const *id, int num_id)
a06ccd9c
CK		 413{
414}
415
e2ce4eaa
LG		 416static inline int regulator_enable(struct regulator *regulator)
417{
418 return 0;
419}
420
421static inline int regulator_disable(struct regulator *regulator)
422{
423 return 0;
424}
425
935a5210
MH		 426static inline int regulator_force_disable(struct regulator *regulator)
427{
428 return 0;
429}
430
da07ecd9
MB		 431static inline int regulator_disable_deferred(struct regulator *regulator,
432 int ms)
433{
434 return 0;
435}
436
e2ce4eaa
LG		 437static inline int regulator_is_enabled(struct regulator *regulator)
438{
439 return 1;
440}
441
442static inline int regulator_bulk_get(struct device *dev,
443 int num_consumers,
444 struct regulator_bulk_data *consumers)
445{
446 return 0;
447}
448
e24abd6e
AL		 449static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
450 struct regulator_bulk_data *consumers)
451{
452 return 0;
453}
454
e2ce4eaa
LG		 455static inline int regulator_bulk_enable(int num_consumers,
456 struct regulator_bulk_data *consumers)
457{
458 return 0;
459}
460
461static inline int regulator_bulk_disable(int num_consumers,
462 struct regulator_bulk_data *consumers)
463{
464 return 0;
465}
466
e1de2f42
DK		 467static inline int regulator_bulk_force_disable(int num_consumers,
468 struct regulator_bulk_data *consumers)
469{
470 return 0;
471}
472
e2ce4eaa
LG		 473static inline void regulator_bulk_free(int num_consumers,
474 struct regulator_bulk_data *consumers)
475{
476}
477
478static inline int regulator_set_voltage(struct regulator *regulator,
479 int min_uV, int max_uV)
480{
481 return 0;
482}
483
d660e92a
VK		 484static inline int regulator_set_voltage_time(struct regulator *regulator,
485 int old_uV, int new_uV)
486{
487 return 0;
488}
489
e2ce4eaa
LG		 490static inline int regulator_get_voltage(struct regulator *regulator)
491{
08aed2f6 492 return -EINVAL;
e2ce4eaa
LG		 493}
494
51dfb6ca
DO		 495static inline int regulator_sync_voltage(struct regulator *regulator)
496{
497 return -EINVAL;
498}
499
4fe23791
PR		 500static inline int regulator_is_supported_voltage(struct regulator *regulator,
501 int min_uV, int max_uV)
502{
503 return 0;
504}
505
7287275b
AB		 506static inline unsigned int regulator_get_linear_step(struct regulator *regulator)
507{
508 return 0;
509}
510
e2ce4eaa
LG		 511static inline int regulator_set_current_limit(struct regulator *regulator,
512 int min_uA, int max_uA)
513{
514 return 0;
515}
516
517static inline int regulator_get_current_limit(struct regulator *regulator)
518{
519 return 0;
520}
521
522static inline int regulator_set_mode(struct regulator *regulator,
523 unsigned int mode)
524{
525 return 0;
526}
527
528static inline unsigned int regulator_get_mode(struct regulator *regulator)
529{
530 return REGULATOR_MODE_NORMAL;
531}
532
30103b5b
DL		 533static inline int regulator_get_error_flags(struct regulator *regulator,
534 unsigned int *flags)
1b5b4221
AH		 535{
536 return -EINVAL;
537}
538
e39ce48f 539static inline int regulator_set_load(struct regulator *regulator, int load_uA)
e2ce4eaa 540{
f1abf672 541 return 0;
e2ce4eaa
LG		 542}
543
f59c8f9f
MB		 544static inline int regulator_allow_bypass(struct regulator *regulator,
545 bool allow)
546{
547 return 0;
548}
549
3bc0312e 550static inline struct regmap *regulator_get_regmap(struct regulator *regulator)
04eca28c
TT		 551{
552 return ERR_PTR(-EOPNOTSUPP);
553}
554
3bc0312e
MB		 555static inline int regulator_get_hardware_vsel_register(struct regulator *regulator,
556 unsigned *vsel_reg,
557 unsigned *vsel_mask)
04eca28c
TT		 558{
559 return -EOPNOTSUPP;
560}
561
3bc0312e
MB		 562static inline int regulator_list_hardware_vsel(struct regulator *regulator,
563 unsigned selector)
04eca28c
TT		 564{
565 return -EOPNOTSUPP;
566}
567
e2ce4eaa
LG		 568static inline int regulator_register_notifier(struct regulator *regulator,
569 struct notifier_block *nb)
570{
571 return 0;
572}
573
046db763
CK		 574static inline int devm_regulator_register_notifier(struct regulator *regulator,
575 struct notifier_block *nb)
576{
577 return 0;
578}
579
e2ce4eaa
LG		 580static inline int regulator_unregister_notifier(struct regulator *regulator,
581 struct notifier_block *nb)
582{
583 return 0;
584}
585
046db763
CK		 586static inline int devm_regulator_unregister_notifier(struct regulator *regulator,
587 struct notifier_block *nb)
588{
589 return 0;
590}
591
51dfb6ca
DO		 592static inline int regulator_suspend_enable(struct regulator_dev *rdev,
593 suspend_state_t state)
594{
595 return -EINVAL;
596}
597
598static inline int regulator_suspend_disable(struct regulator_dev *rdev,
599 suspend_state_t state)
600{
601 return -EINVAL;
602}
603
604static inline int regulator_set_suspend_voltage(struct regulator *regulator,
605 int min_uV, int max_uV,
606 suspend_state_t state)
607{
608 return -EINVAL;
609}
610
e2ce4eaa
LG		 611static inline void *regulator_get_drvdata(struct regulator *regulator)
612{
613 return NULL;
614}
615
616static inline void regulator_set_drvdata(struct regulator *regulator,
617 void *data)
618{
619}
620
1a8f85d4
PR		 621static inline int regulator_count_voltages(struct regulator *regulator)
622{
623 return 0;
624}
5127e31a
SP		 625
626static inline int regulator_list_voltage(struct regulator *regulator, unsigned selector)
627{
628 return -EINVAL;
629}
630
d072cb26
BG		 631static inline void
632regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
633 const char *const *supply_names,
634 unsigned int num_supplies)
d0087e72
BG		 635{
636}
637
b059b7e0 638static inline bool
0468e667 639regulator_is_equal(struct regulator *reg1, struct regulator *reg2)
b059b7e0
MV		 640{
641 return false;
642}
e2ce4eaa
LG		 643#endif
644
30f93ca8
VK		 645static inline int regulator_set_voltage_triplet(struct regulator *regulator,
646 int min_uV, int target_uV,
647 int max_uV)
648{
649 if (regulator_set_voltage(regulator, target_uV, max_uV) == 0)
650 return 0;
651
652 return regulator_set_voltage(regulator, min_uV, max_uV);
653}
654
3f196577
SG		 655static inline int regulator_set_voltage_tol(struct regulator *regulator,
656 int new_uV, int tol_uV)
657{
dc9ceed6
MB		 658 if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0)
659 return 0;
660 else
661 return regulator_set_voltage(regulator,
662 new_uV - tol_uV, new_uV + tol_uV);
3f196577
SG		 663}
664
fe1e43f7
MB		 665static inline int regulator_is_supported_voltage_tol(struct regulator *regulator,
666 int target_uV, int tol_uV)
667{
668 return regulator_is_supported_voltage(regulator,
669 target_uV - tol_uV,
670 target_uV + tol_uV);
671}
672
e2ce4eaa 673#endif
Ubuntu Hirsute Linux kernel mirror