1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * consumer.h -- SoC Regulator consumer support.
4 *
5 * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
6 *
7 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
8 *
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.
29 */
30
31 #ifndef __LINUX_REGULATOR_CONSUMER_H_
32 #define __LINUX_REGULATOR_CONSUMER_H_
33
34 #include <linux/err.h>
35 #include <linux/suspend.h>
36 #include <regulator/regulator.h>
37
38 struct device;
39 struct notifier_block;
40 struct regmap;
41 struct regulator_dev;
42
43 /*
44 * Regulator operating modes.
45 *
46 * Regulators can run in a variety of different operating modes depending on
47 * output load. This allows further system power savings by selecting the
48 * best (and most efficient) regulator mode for a desired load.
49 *
50 * Most drivers will only care about NORMAL. The modes below are generic and
51 * will probably not match the naming convention of your regulator data sheet
52 * but should match the use cases in the datasheet.
53 *
54 * In order of power efficiency (least efficient at top).
55 *
56 * Mode Description
57 * FAST Regulator can handle fast changes in it's load.
58 * e.g. useful in CPU voltage & frequency scaling where
59 * load can quickly increase with CPU frequency increases.
60 *
61 * NORMAL Normal regulator power supply mode. Most drivers will
62 * use this mode.
63 *
64 * IDLE Regulator runs in a more efficient mode for light
65 * loads. Can be used for devices that have a low power
66 * requirement during periods of inactivity. This mode
67 * may be more noisy than NORMAL and may not be able
68 * to handle fast load switching.
69 *
70 * STANDBY Regulator runs in the most efficient mode for very
71 * light loads. Can be used by devices when they are
72 * in a sleep/standby state. This mode is likely to be
73 * the most noisy and may not be able to handle fast load
74 * switching.
75 *
76 * NOTE: Most regulators will only support a subset of these modes. Some
77 * will only just support NORMAL.
78 *
79 * These modes can be OR'ed together to make up a mask of valid register modes.
80 */
81
82 #define REGULATOR_MODE_INVALID 0x0
83 #define REGULATOR_MODE_FAST 0x1
84 #define REGULATOR_MODE_NORMAL 0x2
85 #define REGULATOR_MODE_IDLE 0x4
86 #define REGULATOR_MODE_STANDBY 0x8
87
88 /*
89 * Regulator errors that can be queried using regulator_get_error_flags
90 *
91 * UNDER_VOLTAGE Regulator output is under voltage.
92 * OVER_CURRENT Regulator output current is too high.
93 * REGULATION_OUT Regulator output is out of regulation.
94 * FAIL Regulator output has failed.
95 * OVER_TEMP Regulator over temp.
96 *
97 * NOTE: These errors can be OR'ed together.
98 */
99
100 #define REGULATOR_ERROR_UNDER_VOLTAGE BIT(1)
101 #define REGULATOR_ERROR_OVER_CURRENT BIT(2)
102 #define REGULATOR_ERROR_REGULATION_OUT BIT(3)
103 #define REGULATOR_ERROR_FAIL BIT(4)
104 #define REGULATOR_ERROR_OVER_TEMP BIT(5)
105
106 #define REGULATOR_ERROR_UNDER_VOLTAGE_WARN BIT(6)
107 #define REGULATOR_ERROR_OVER_CURRENT_WARN BIT(7)
108 #define REGULATOR_ERROR_OVER_VOLTAGE_WARN BIT(8)
109 #define REGULATOR_ERROR_OVER_TEMP_WARN BIT(9)
110
111 /**
112 * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
113 *
114 * @old_uV: Current voltage before change.
115 * @min_uV: Min voltage we'll change to.
116 * @max_uV: Max voltage we'll change to.
117 */
118 struct pre_voltage_change_data {
119 unsigned long old_uV;
120 unsigned long min_uV;
121 unsigned long max_uV;
122 };
123
124 struct regulator;
125
126 /**
127 * struct regulator_bulk_data - Data used for bulk regulator operations.
128 *
129 * @supply: The name of the supply. Initialised by the user before
130 * using the bulk regulator APIs.
131 * @consumer: The regulator consumer for the supply. This will be managed
132 * by the bulk API.
133 * @init_load_uA: After getting the regulator, regulator_set_load() will be
134 * called with this load. Initialised by the user before
135 * using the bulk regulator APIs.
136 *
137 * The regulator APIs provide a series of regulator_bulk_() API calls as
138 * a convenience to consumers which require multiple supplies. This
139 * structure is used to manage data for these calls.
140 */
141 struct regulator_bulk_data {
142 const char *supply;
143 struct regulator *consumer;
144 int init_load_uA;
145
146 /* private: Internal use */
147 int ret;
148 };
149
150 #if defined(CONFIG_REGULATOR)
151
152 /* regulator get and put */
153 struct regulator *__must_check regulator_get(struct device *dev,
154 const char *id);
155 struct regulator *__must_check devm_regulator_get(struct device *dev,
156 const char *id);
157 struct regulator *__must_check regulator_get_exclusive(struct device *dev,
158 const char *id);
159 struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev,
160 const char *id);
161 struct regulator *__must_check regulator_get_optional(struct device *dev,
162 const char *id);
163 struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
164 const char *id);
165 int devm_regulator_get_enable(struct device *dev, const char *id);
166 int devm_regulator_get_enable_optional(struct device *dev, const char *id);
167 int devm_regulator_get_enable_read_voltage(struct device *dev, const char *id);
168 void regulator_put(struct regulator *regulator);
169 void devm_regulator_put(struct regulator *regulator);
170
171 #if IS_ENABLED(CONFIG_OF)
172 struct regulator *__must_check of_regulator_get_optional(struct device *dev,
173 struct device_node *node,
174 const char *id);
175 struct regulator *__must_check devm_of_regulator_get_optional(struct device *dev,
176 struct device_node *node,
177 const char *id);
178 #else
of_regulator_get_optional(struct device * dev,struct device_node * node,const char * id)179 static inline struct regulator *__must_check of_regulator_get_optional(struct device *dev,
180 struct device_node *node,
181 const char *id)
182 {
183 return ERR_PTR(-ENODEV);
184 }
185
devm_of_regulator_get_optional(struct device * dev,struct device_node * node,const char * id)186 static inline struct regulator *__must_check devm_of_regulator_get_optional(struct device *dev,
187 struct device_node *node,
188 const char *id)
189 {
190 return ERR_PTR(-ENODEV);
191 }
192 #endif
193
194 int regulator_register_supply_alias(struct device *dev, const char *id,
195 struct device *alias_dev,
196 const char *alias_id);
197 void regulator_unregister_supply_alias(struct device *dev, const char *id);
198
199 int regulator_bulk_register_supply_alias(struct device *dev,
200 const char *const *id,
201 struct device *alias_dev,
202 const char *const *alias_id,
203 int num_id);
204 void regulator_bulk_unregister_supply_alias(struct device *dev,
205 const char * const *id, int num_id);
206
207 int devm_regulator_register_supply_alias(struct device *dev, const char *id,
208 struct device *alias_dev,
209 const char *alias_id);
210
211 int devm_regulator_bulk_register_supply_alias(struct device *dev,
212 const char *const *id,
213 struct device *alias_dev,
214 const char *const *alias_id,
215 int num_id);
216
217 /* regulator output control and status */
218 int __must_check regulator_enable(struct regulator *regulator);
219 int regulator_disable(struct regulator *regulator);
220 int regulator_force_disable(struct regulator *regulator);
221 int regulator_is_enabled(struct regulator *regulator);
222 int regulator_disable_deferred(struct regulator *regulator, int ms);
223
224 int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
225 struct regulator_bulk_data *consumers);
226 int __must_check of_regulator_bulk_get_all(struct device *dev, struct device_node *np,
227 struct regulator_bulk_data **consumers);
228 int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
229 struct regulator_bulk_data *consumers);
230 void devm_regulator_bulk_put(struct regulator_bulk_data *consumers);
231 int __must_check devm_regulator_bulk_get_exclusive(struct device *dev, int num_consumers,
232 struct regulator_bulk_data *consumers);
233 int __must_check devm_regulator_bulk_get_const(
234 struct device *dev, int num_consumers,
235 const struct regulator_bulk_data *in_consumers,
236 struct regulator_bulk_data **out_consumers);
237 int __must_check regulator_bulk_enable(int num_consumers,
238 struct regulator_bulk_data *consumers);
239 int devm_regulator_bulk_get_enable(struct device *dev, int num_consumers,
240 const char * const *id);
241 int regulator_bulk_disable(int num_consumers,
242 struct regulator_bulk_data *consumers);
243 int regulator_bulk_force_disable(int num_consumers,
244 struct regulator_bulk_data *consumers);
245 void regulator_bulk_free(int num_consumers,
246 struct regulator_bulk_data *consumers);
247
248 int regulator_count_voltages(struct regulator *regulator);
249 int regulator_list_voltage(struct regulator *regulator, unsigned selector);
250 int regulator_is_supported_voltage(struct regulator *regulator,
251 int min_uV, int max_uV);
252 unsigned int regulator_get_linear_step(struct regulator *regulator);
253 int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
254 int regulator_set_voltage_time(struct regulator *regulator,
255 int old_uV, int new_uV);
256 int regulator_get_voltage(struct regulator *regulator);
257 int regulator_sync_voltage(struct regulator *regulator);
258 int regulator_set_current_limit(struct regulator *regulator,
259 int min_uA, int max_uA);
260 int regulator_get_current_limit(struct regulator *regulator);
261
262 int regulator_set_mode(struct regulator *regulator, unsigned int mode);
263 unsigned int regulator_get_mode(struct regulator *regulator);
264 int regulator_get_error_flags(struct regulator *regulator,
265 unsigned int *flags);
266 int regulator_set_load(struct regulator *regulator, int load_uA);
267
268 int regulator_allow_bypass(struct regulator *regulator, bool allow);
269
270 struct regmap *regulator_get_regmap(struct regulator *regulator);
271 int regulator_get_hardware_vsel_register(struct regulator *regulator,
272 unsigned *vsel_reg,
273 unsigned *vsel_mask);
274 int regulator_list_hardware_vsel(struct regulator *regulator,
275 unsigned selector);
276 int regulator_hardware_enable(struct regulator *regulator, bool enable);
277
278 /* regulator notifier block */
279 int regulator_register_notifier(struct regulator *regulator,
280 struct notifier_block *nb);
281 int devm_regulator_register_notifier(struct regulator *regulator,
282 struct notifier_block *nb);
283 int regulator_unregister_notifier(struct regulator *regulator,
284 struct notifier_block *nb);
285 void devm_regulator_unregister_notifier(struct regulator *regulator,
286 struct notifier_block *nb);
287
288 /* regulator suspend */
289 int regulator_suspend_enable(struct regulator_dev *rdev,
290 suspend_state_t state);
291 int regulator_suspend_disable(struct regulator_dev *rdev,
292 suspend_state_t state);
293 int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV,
294 int max_uV, suspend_state_t state);
295
296 /* driver data - core doesn't touch */
297 void *regulator_get_drvdata(struct regulator *regulator);
298 void regulator_set_drvdata(struct regulator *regulator, void *data);
299
300 /* misc helpers */
301
302 void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
303 const char *const *supply_names,
304 unsigned int num_supplies);
305
306 bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2);
307
308 #else
309
310 /*
311 * Make sure client drivers will still build on systems with no software
312 * controllable voltage or current regulators.
313 */
regulator_get(struct device * dev,const char * id)314 static inline struct regulator *__must_check regulator_get(struct device *dev,
315 const char *id)
316 {
317 /* Nothing except the stubbed out regulator API should be
318 * looking at the value except to check if it is an error
319 * value. Drivers are free to handle NULL specifically by
320 * skipping all regulator API calls, but they don't have to.
321 * Drivers which don't, should make sure they properly handle
322 * corner cases of the API, such as regulator_get_voltage()
323 * returning 0.
324 */
325 return NULL;
326 }
327
328 static inline struct regulator *__must_check
devm_regulator_get(struct device * dev,const char * id)329 devm_regulator_get(struct device *dev, const char *id)
330 {
331 return NULL;
332 }
333
334 static inline struct regulator *__must_check
regulator_get_exclusive(struct device * dev,const char * id)335 regulator_get_exclusive(struct device *dev, const char *id)
336 {
337 return ERR_PTR(-ENODEV);
338 }
339
340 static inline struct regulator *__must_check
devm_regulator_get_exclusive(struct device * dev,const char * id)341 devm_regulator_get_exclusive(struct device *dev, const char *id)
342 {
343 return ERR_PTR(-ENODEV);
344 }
345
devm_regulator_get_enable(struct device * dev,const char * id)346 static inline int devm_regulator_get_enable(struct device *dev, const char *id)
347 {
348 return 0;
349 }
350
devm_regulator_get_enable_optional(struct device * dev,const char * id)351 static inline int devm_regulator_get_enable_optional(struct device *dev,
352 const char *id)
353 {
354 return 0;
355 }
356
devm_regulator_get_enable_read_voltage(struct device * dev,const char * id)357 static inline int devm_regulator_get_enable_read_voltage(struct device *dev,
358 const char *id)
359 {
360 return -ENODEV;
361 }
362
363 static inline struct regulator *__must_check
regulator_get_optional(struct device * dev,const char * id)364 regulator_get_optional(struct device *dev, const char *id)
365 {
366 return ERR_PTR(-ENODEV);
367 }
368
369
370 static inline struct regulator *__must_check
devm_regulator_get_optional(struct device * dev,const char * id)371 devm_regulator_get_optional(struct device *dev, const char *id)
372 {
373 return ERR_PTR(-ENODEV);
374 }
375
of_regulator_get_optional(struct device * dev,struct device_node * node,const char * id)376 static inline struct regulator *__must_check of_regulator_get_optional(struct device *dev,
377 struct device_node *node,
378 const char *id)
379 {
380 return ERR_PTR(-ENODEV);
381 }
382
devm_of_regulator_get_optional(struct device * dev,struct device_node * node,const char * id)383 static inline struct regulator *__must_check devm_of_regulator_get_optional(struct device *dev,
384 struct device_node *node,
385 const char *id)
386 {
387 return ERR_PTR(-ENODEV);
388 }
389
regulator_put(struct regulator * regulator)390 static inline void regulator_put(struct regulator *regulator)
391 {
392 }
393
devm_regulator_put(struct regulator * regulator)394 static inline void devm_regulator_put(struct regulator *regulator)
395 {
396 }
397
devm_regulator_bulk_put(struct regulator_bulk_data * consumers)398 static inline void devm_regulator_bulk_put(struct regulator_bulk_data *consumers)
399 {
400 }
401
regulator_register_supply_alias(struct device * dev,const char * id,struct device * alias_dev,const char * alias_id)402 static inline int regulator_register_supply_alias(struct device *dev,
403 const char *id,
404 struct device *alias_dev,
405 const char *alias_id)
406 {
407 return 0;
408 }
409
regulator_unregister_supply_alias(struct device * dev,const char * id)410 static inline void regulator_unregister_supply_alias(struct device *dev,
411 const char *id)
412 {
413 }
414
regulator_bulk_register_supply_alias(struct device * dev,const char * const * id,struct device * alias_dev,const char * const * alias_id,int num_id)415 static inline int regulator_bulk_register_supply_alias(struct device *dev,
416 const char *const *id,
417 struct device *alias_dev,
418 const char * const *alias_id,
419 int num_id)
420 {
421 return 0;
422 }
423
regulator_bulk_unregister_supply_alias(struct device * dev,const char * const * id,int num_id)424 static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
425 const char * const *id,
426 int num_id)
427 {
428 }
429
devm_regulator_register_supply_alias(struct device * dev,const char * id,struct device * alias_dev,const char * alias_id)430 static inline int devm_regulator_register_supply_alias(struct device *dev,
431 const char *id,
432 struct device *alias_dev,
433 const char *alias_id)
434 {
435 return 0;
436 }
437
devm_regulator_bulk_register_supply_alias(struct device * dev,const char * const * id,struct device * alias_dev,const char * const * alias_id,int num_id)438 static inline int devm_regulator_bulk_register_supply_alias(struct device *dev,
439 const char *const *id,
440 struct device *alias_dev,
441 const char *const *alias_id,
442 int num_id)
443 {
444 return 0;
445 }
446
regulator_enable(struct regulator * regulator)447 static inline int regulator_enable(struct regulator *regulator)
448 {
449 return 0;
450 }
451
regulator_disable(struct regulator * regulator)452 static inline int regulator_disable(struct regulator *regulator)
453 {
454 return 0;
455 }
456
regulator_force_disable(struct regulator * regulator)457 static inline int regulator_force_disable(struct regulator *regulator)
458 {
459 return 0;
460 }
461
regulator_disable_deferred(struct regulator * regulator,int ms)462 static inline int regulator_disable_deferred(struct regulator *regulator,
463 int ms)
464 {
465 return 0;
466 }
467
regulator_is_enabled(struct regulator * regulator)468 static inline int regulator_is_enabled(struct regulator *regulator)
469 {
470 return 1;
471 }
472
regulator_bulk_get(struct device * dev,int num_consumers,struct regulator_bulk_data * consumers)473 static inline int regulator_bulk_get(struct device *dev,
474 int num_consumers,
475 struct regulator_bulk_data *consumers)
476 {
477 return 0;
478 }
479
devm_regulator_bulk_get(struct device * dev,int num_consumers,struct regulator_bulk_data * consumers)480 static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
481 struct regulator_bulk_data *consumers)
482 {
483 return 0;
484 }
485
of_regulator_bulk_get_all(struct device * dev,struct device_node * np,struct regulator_bulk_data ** consumers)486 static inline int of_regulator_bulk_get_all(struct device *dev, struct device_node *np,
487 struct regulator_bulk_data **consumers)
488 {
489 return 0;
490 }
491
devm_regulator_bulk_get_const(struct device * dev,int num_consumers,const struct regulator_bulk_data * in_consumers,struct regulator_bulk_data ** out_consumers)492 static inline int devm_regulator_bulk_get_const(
493 struct device *dev, int num_consumers,
494 const struct regulator_bulk_data *in_consumers,
495 struct regulator_bulk_data **out_consumers)
496 {
497 return 0;
498 }
499
regulator_bulk_enable(int num_consumers,struct regulator_bulk_data * consumers)500 static inline int regulator_bulk_enable(int num_consumers,
501 struct regulator_bulk_data *consumers)
502 {
503 return 0;
504 }
505
devm_regulator_bulk_get_enable(struct device * dev,int num_consumers,const char * const * id)506 static inline int devm_regulator_bulk_get_enable(struct device *dev,
507 int num_consumers,
508 const char * const *id)
509 {
510 return 0;
511 }
512
regulator_bulk_disable(int num_consumers,struct regulator_bulk_data * consumers)513 static inline int regulator_bulk_disable(int num_consumers,
514 struct regulator_bulk_data *consumers)
515 {
516 return 0;
517 }
518
regulator_bulk_force_disable(int num_consumers,struct regulator_bulk_data * consumers)519 static inline int regulator_bulk_force_disable(int num_consumers,
520 struct regulator_bulk_data *consumers)
521 {
522 return 0;
523 }
524
regulator_bulk_free(int num_consumers,struct regulator_bulk_data * consumers)525 static inline void regulator_bulk_free(int num_consumers,
526 struct regulator_bulk_data *consumers)
527 {
528 }
529
regulator_set_voltage(struct regulator * regulator,int min_uV,int max_uV)530 static inline int regulator_set_voltage(struct regulator *regulator,
531 int min_uV, int max_uV)
532 {
533 return 0;
534 }
535
regulator_set_voltage_time(struct regulator * regulator,int old_uV,int new_uV)536 static inline int regulator_set_voltage_time(struct regulator *regulator,
537 int old_uV, int new_uV)
538 {
539 return 0;
540 }
541
regulator_get_voltage(struct regulator * regulator)542 static inline int regulator_get_voltage(struct regulator *regulator)
543 {
544 return -EINVAL;
545 }
546
regulator_sync_voltage(struct regulator * regulator)547 static inline int regulator_sync_voltage(struct regulator *regulator)
548 {
549 return -EINVAL;
550 }
551
regulator_is_supported_voltage(struct regulator * regulator,int min_uV,int max_uV)552 static inline int regulator_is_supported_voltage(struct regulator *regulator,
553 int min_uV, int max_uV)
554 {
555 return 0;
556 }
557
regulator_get_linear_step(struct regulator * regulator)558 static inline unsigned int regulator_get_linear_step(struct regulator *regulator)
559 {
560 return 0;
561 }
562
regulator_set_current_limit(struct regulator * regulator,int min_uA,int max_uA)563 static inline int regulator_set_current_limit(struct regulator *regulator,
564 int min_uA, int max_uA)
565 {
566 return 0;
567 }
568
regulator_get_current_limit(struct regulator * regulator)569 static inline int regulator_get_current_limit(struct regulator *regulator)
570 {
571 return 0;
572 }
573
regulator_set_mode(struct regulator * regulator,unsigned int mode)574 static inline int regulator_set_mode(struct regulator *regulator,
575 unsigned int mode)
576 {
577 return 0;
578 }
579
regulator_get_mode(struct regulator * regulator)580 static inline unsigned int regulator_get_mode(struct regulator *regulator)
581 {
582 return REGULATOR_MODE_NORMAL;
583 }
584
regulator_get_error_flags(struct regulator * regulator,unsigned int * flags)585 static inline int regulator_get_error_flags(struct regulator *regulator,
586 unsigned int *flags)
587 {
588 return -EINVAL;
589 }
590
regulator_set_load(struct regulator * regulator,int load_uA)591 static inline int regulator_set_load(struct regulator *regulator, int load_uA)
592 {
593 return 0;
594 }
595
regulator_allow_bypass(struct regulator * regulator,bool allow)596 static inline int regulator_allow_bypass(struct regulator *regulator,
597 bool allow)
598 {
599 return 0;
600 }
601
regulator_get_regmap(struct regulator * regulator)602 static inline struct regmap *regulator_get_regmap(struct regulator *regulator)
603 {
604 return ERR_PTR(-EOPNOTSUPP);
605 }
606
regulator_get_hardware_vsel_register(struct regulator * regulator,unsigned * vsel_reg,unsigned * vsel_mask)607 static inline int regulator_get_hardware_vsel_register(struct regulator *regulator,
608 unsigned *vsel_reg,
609 unsigned *vsel_mask)
610 {
611 return -EOPNOTSUPP;
612 }
613
regulator_list_hardware_vsel(struct regulator * regulator,unsigned selector)614 static inline int regulator_list_hardware_vsel(struct regulator *regulator,
615 unsigned selector)
616 {
617 return -EOPNOTSUPP;
618 }
619
regulator_hardware_enable(struct regulator * regulator,bool enable)620 static inline int regulator_hardware_enable(struct regulator *regulator,
621 bool enable)
622 {
623 return -EOPNOTSUPP;
624 }
625
regulator_register_notifier(struct regulator * regulator,struct notifier_block * nb)626 static inline int regulator_register_notifier(struct regulator *regulator,
627 struct notifier_block *nb)
628 {
629 return 0;
630 }
631
devm_regulator_register_notifier(struct regulator * regulator,struct notifier_block * nb)632 static inline int devm_regulator_register_notifier(struct regulator *regulator,
633 struct notifier_block *nb)
634 {
635 return 0;
636 }
637
regulator_unregister_notifier(struct regulator * regulator,struct notifier_block * nb)638 static inline int regulator_unregister_notifier(struct regulator *regulator,
639 struct notifier_block *nb)
640 {
641 return 0;
642 }
643
devm_regulator_unregister_notifier(struct regulator * regulator,struct notifier_block * nb)644 static inline int devm_regulator_unregister_notifier(struct regulator *regulator,
645 struct notifier_block *nb)
646 {
647 return 0;
648 }
649
regulator_suspend_enable(struct regulator_dev * rdev,suspend_state_t state)650 static inline int regulator_suspend_enable(struct regulator_dev *rdev,
651 suspend_state_t state)
652 {
653 return -EINVAL;
654 }
655
regulator_suspend_disable(struct regulator_dev * rdev,suspend_state_t state)656 static inline int regulator_suspend_disable(struct regulator_dev *rdev,
657 suspend_state_t state)
658 {
659 return -EINVAL;
660 }
661
regulator_set_suspend_voltage(struct regulator * regulator,int min_uV,int max_uV,suspend_state_t state)662 static inline int regulator_set_suspend_voltage(struct regulator *regulator,
663 int min_uV, int max_uV,
664 suspend_state_t state)
665 {
666 return -EINVAL;
667 }
668
regulator_get_drvdata(struct regulator * regulator)669 static inline void *regulator_get_drvdata(struct regulator *regulator)
670 {
671 return NULL;
672 }
673
regulator_set_drvdata(struct regulator * regulator,void * data)674 static inline void regulator_set_drvdata(struct regulator *regulator,
675 void *data)
676 {
677 }
678
regulator_count_voltages(struct regulator * regulator)679 static inline int regulator_count_voltages(struct regulator *regulator)
680 {
681 return 0;
682 }
683
regulator_list_voltage(struct regulator * regulator,unsigned selector)684 static inline int regulator_list_voltage(struct regulator *regulator, unsigned selector)
685 {
686 return -EINVAL;
687 }
688
689 static inline void
regulator_bulk_set_supply_names(struct regulator_bulk_data * consumers,const char * const * supply_names,unsigned int num_supplies)690 regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
691 const char *const *supply_names,
692 unsigned int num_supplies)
693 {
694 }
695
696 static inline bool
regulator_is_equal(struct regulator * reg1,struct regulator * reg2)697 regulator_is_equal(struct regulator *reg1, struct regulator *reg2)
698 {
699 return false;
700 }
701 #endif
702
regulator_set_voltage_triplet(struct regulator * regulator,int min_uV,int target_uV,int max_uV)703 static inline int regulator_set_voltage_triplet(struct regulator *regulator,
704 int min_uV, int target_uV,
705 int max_uV)
706 {
707 if (regulator_set_voltage(regulator, target_uV, max_uV) == 0)
708 return 0;
709
710 return regulator_set_voltage(regulator, min_uV, max_uV);
711 }
712
regulator_set_voltage_tol(struct regulator * regulator,int new_uV,int tol_uV)713 static inline int regulator_set_voltage_tol(struct regulator *regulator,
714 int new_uV, int tol_uV)
715 {
716 if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0)
717 return 0;
718 else
719 return regulator_set_voltage(regulator,
720 new_uV - tol_uV, new_uV + tol_uV);
721 }
722
regulator_is_supported_voltage_tol(struct regulator * regulator,int target_uV,int tol_uV)723 static inline int regulator_is_supported_voltage_tol(struct regulator *regulator,
724 int target_uV, int tol_uV)
725 {
726 return regulator_is_supported_voltage(regulator,
727 target_uV - tol_uV,
728 target_uV + tol_uV);
729 }
730
731 #endif
732