xref: /linux/include/linux/regulator/consumer.h (revision 3fd6c59042dbba50391e30862beac979491145fe)
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