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 | |
37 | struct device; |
38 | struct notifier_block; |
39 | struct regmap; |
40 | struct regulator_dev; |
41 | |
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 | |
81 | #define REGULATOR_MODE_INVALID 0x0 |
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. |
95 | * FORCE_DISABLE Regulator forcibly shut down by software. |
96 | * VOLTAGE_CHANGE Regulator voltage changed. |
97 | * Data passed is old voltage cast to (void *). |
98 | * DISABLE Regulator was disabled. |
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 *). |
103 | * PRE_DISABLE Regulator is about to be disabled |
104 | * ABORT_DISABLE Regulator disable failed for some reason |
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 |
115 | #define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40 |
116 | #define REGULATOR_EVENT_DISABLE 0x80 |
117 | #define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100 |
118 | #define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200 |
119 | #define REGULATOR_EVENT_PRE_DISABLE 0x400 |
120 | #define REGULATOR_EVENT_ABORT_DISABLE 0x800 |
121 | #define REGULATOR_EVENT_ENABLE 0x1000 |
122 | /* |
123 | * Following notifications should be emitted only if detected condition |
124 | * is such that the HW is likely to still be working but consumers should |
125 | * take a recovery action to prevent problems esacalating into errors. |
126 | */ |
127 | #define REGULATOR_EVENT_UNDER_VOLTAGE_WARN 0x2000 |
128 | #define REGULATOR_EVENT_OVER_CURRENT_WARN 0x4000 |
129 | #define REGULATOR_EVENT_OVER_VOLTAGE_WARN 0x8000 |
130 | #define REGULATOR_EVENT_OVER_TEMP_WARN 0x10000 |
131 | #define REGULATOR_EVENT_WARN_MASK 0x1E000 |
132 | |
133 | /* |
134 | * Regulator errors that can be queried using regulator_get_error_flags |
135 | * |
136 | * UNDER_VOLTAGE Regulator output is under voltage. |
137 | * OVER_CURRENT Regulator output current is too high. |
138 | * REGULATION_OUT Regulator output is out of regulation. |
139 | * FAIL Regulator output has failed. |
140 | * OVER_TEMP Regulator over temp. |
141 | * |
142 | * NOTE: These errors can be OR'ed together. |
143 | */ |
144 | |
145 | #define REGULATOR_ERROR_UNDER_VOLTAGE BIT(1) |
146 | #define REGULATOR_ERROR_OVER_CURRENT BIT(2) |
147 | #define REGULATOR_ERROR_REGULATION_OUT BIT(3) |
148 | #define REGULATOR_ERROR_FAIL BIT(4) |
149 | #define REGULATOR_ERROR_OVER_TEMP BIT(5) |
150 | |
151 | #define REGULATOR_ERROR_UNDER_VOLTAGE_WARN BIT(6) |
152 | #define REGULATOR_ERROR_OVER_CURRENT_WARN BIT(7) |
153 | #define REGULATOR_ERROR_OVER_VOLTAGE_WARN BIT(8) |
154 | #define REGULATOR_ERROR_OVER_TEMP_WARN BIT(9) |
155 | |
156 | /** |
157 | * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event |
158 | * |
159 | * @old_uV: Current voltage before change. |
160 | * @min_uV: Min voltage we'll change to. |
161 | * @max_uV: Max voltage we'll change to. |
162 | */ |
163 | struct pre_voltage_change_data { |
164 | unsigned long old_uV; |
165 | unsigned long min_uV; |
166 | unsigned long max_uV; |
167 | }; |
168 | |
169 | struct regulator; |
170 | |
171 | /** |
172 | * struct regulator_bulk_data - Data used for bulk regulator operations. |
173 | * |
174 | * @supply: The name of the supply. Initialised by the user before |
175 | * using the bulk regulator APIs. |
176 | * @init_load_uA: After getting the regulator, regulator_set_load() will be |
177 | * called with this load. Initialised by the user before |
178 | * using the bulk regulator APIs. |
179 | * @consumer: The regulator consumer for the supply. This will be managed |
180 | * by the bulk API. |
181 | * |
182 | * The regulator APIs provide a series of regulator_bulk_() API calls as |
183 | * a convenience to consumers which require multiple supplies. This |
184 | * structure is used to manage data for these calls. |
185 | */ |
186 | struct regulator_bulk_data { |
187 | const char *supply; |
188 | int init_load_uA; |
189 | struct regulator *consumer; |
190 | |
191 | /* private: Internal use */ |
192 | int ret; |
193 | }; |
194 | |
195 | #if defined(CONFIG_REGULATOR) |
196 | |
197 | /* regulator get and put */ |
198 | struct regulator *__must_check regulator_get(struct device *dev, |
199 | const char *id); |
200 | struct regulator *__must_check devm_regulator_get(struct device *dev, |
201 | const char *id); |
202 | struct regulator *__must_check regulator_get_exclusive(struct device *dev, |
203 | const char *id); |
204 | struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev, |
205 | const char *id); |
206 | struct regulator *__must_check regulator_get_optional(struct device *dev, |
207 | const char *id); |
208 | struct regulator *__must_check devm_regulator_get_optional(struct device *dev, |
209 | const char *id); |
210 | int devm_regulator_get_enable(struct device *dev, const char *id); |
211 | int devm_regulator_get_enable_optional(struct device *dev, const char *id); |
212 | void regulator_put(struct regulator *regulator); |
213 | void devm_regulator_put(struct regulator *regulator); |
214 | |
215 | int regulator_register_supply_alias(struct device *dev, const char *id, |
216 | struct device *alias_dev, |
217 | const char *alias_id); |
218 | void regulator_unregister_supply_alias(struct device *dev, const char *id); |
219 | |
220 | int regulator_bulk_register_supply_alias(struct device *dev, |
221 | const char *const *id, |
222 | struct device *alias_dev, |
223 | const char *const *alias_id, |
224 | int num_id); |
225 | void regulator_bulk_unregister_supply_alias(struct device *dev, |
226 | const char * const *id, int num_id); |
227 | |
228 | int devm_regulator_register_supply_alias(struct device *dev, const char *id, |
229 | struct device *alias_dev, |
230 | const char *alias_id); |
231 | |
232 | int devm_regulator_bulk_register_supply_alias(struct device *dev, |
233 | const char *const *id, |
234 | struct device *alias_dev, |
235 | const char *const *alias_id, |
236 | int num_id); |
237 | |
238 | /* regulator output control and status */ |
239 | int __must_check regulator_enable(struct regulator *regulator); |
240 | int regulator_disable(struct regulator *regulator); |
241 | int regulator_force_disable(struct regulator *regulator); |
242 | int regulator_is_enabled(struct regulator *regulator); |
243 | int regulator_disable_deferred(struct regulator *regulator, int ms); |
244 | |
245 | int __must_check regulator_bulk_get(struct device *dev, int num_consumers, |
246 | struct regulator_bulk_data *consumers); |
247 | int __must_check of_regulator_bulk_get_all(struct device *dev, struct device_node *np, |
248 | struct regulator_bulk_data **consumers); |
249 | int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers, |
250 | struct regulator_bulk_data *consumers); |
251 | void devm_regulator_bulk_put(struct regulator_bulk_data *consumers); |
252 | int __must_check devm_regulator_bulk_get_exclusive(struct device *dev, int num_consumers, |
253 | struct regulator_bulk_data *consumers); |
254 | int __must_check devm_regulator_bulk_get_const( |
255 | struct device *dev, int num_consumers, |
256 | const struct regulator_bulk_data *in_consumers, |
257 | struct regulator_bulk_data **out_consumers); |
258 | int __must_check regulator_bulk_enable(int num_consumers, |
259 | struct regulator_bulk_data *consumers); |
260 | int devm_regulator_bulk_get_enable(struct device *dev, int num_consumers, |
261 | const char * const *id); |
262 | int regulator_bulk_disable(int num_consumers, |
263 | struct regulator_bulk_data *consumers); |
264 | int regulator_bulk_force_disable(int num_consumers, |
265 | struct regulator_bulk_data *consumers); |
266 | void regulator_bulk_free(int num_consumers, |
267 | struct regulator_bulk_data *consumers); |
268 | |
269 | int regulator_count_voltages(struct regulator *regulator); |
270 | int regulator_list_voltage(struct regulator *regulator, unsigned selector); |
271 | int regulator_is_supported_voltage(struct regulator *regulator, |
272 | int min_uV, int max_uV); |
273 | unsigned int regulator_get_linear_step(struct regulator *regulator); |
274 | int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV); |
275 | int regulator_set_voltage_time(struct regulator *regulator, |
276 | int old_uV, int new_uV); |
277 | int regulator_get_voltage(struct regulator *regulator); |
278 | int regulator_sync_voltage(struct regulator *regulator); |
279 | int regulator_set_current_limit(struct regulator *regulator, |
280 | int min_uA, int max_uA); |
281 | int regulator_get_current_limit(struct regulator *regulator); |
282 | |
283 | int regulator_set_mode(struct regulator *regulator, unsigned int mode); |
284 | unsigned int regulator_get_mode(struct regulator *regulator); |
285 | int regulator_get_error_flags(struct regulator *regulator, |
286 | unsigned int *flags); |
287 | int regulator_set_load(struct regulator *regulator, int load_uA); |
288 | |
289 | int regulator_allow_bypass(struct regulator *regulator, bool allow); |
290 | |
291 | struct regmap *regulator_get_regmap(struct regulator *regulator); |
292 | int regulator_get_hardware_vsel_register(struct regulator *regulator, |
293 | unsigned *vsel_reg, |
294 | unsigned *vsel_mask); |
295 | int regulator_list_hardware_vsel(struct regulator *regulator, |
296 | unsigned selector); |
297 | |
298 | /* regulator notifier block */ |
299 | int regulator_register_notifier(struct regulator *regulator, |
300 | struct notifier_block *nb); |
301 | int devm_regulator_register_notifier(struct regulator *regulator, |
302 | struct notifier_block *nb); |
303 | int regulator_unregister_notifier(struct regulator *regulator, |
304 | struct notifier_block *nb); |
305 | void devm_regulator_unregister_notifier(struct regulator *regulator, |
306 | struct notifier_block *nb); |
307 | |
308 | /* regulator suspend */ |
309 | int regulator_suspend_enable(struct regulator_dev *rdev, |
310 | suspend_state_t state); |
311 | int regulator_suspend_disable(struct regulator_dev *rdev, |
312 | suspend_state_t state); |
313 | int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV, |
314 | int max_uV, suspend_state_t state); |
315 | |
316 | /* driver data - core doesn't touch */ |
317 | void *regulator_get_drvdata(struct regulator *regulator); |
318 | void regulator_set_drvdata(struct regulator *regulator, void *data); |
319 | |
320 | /* misc helpers */ |
321 | |
322 | void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers, |
323 | const char *const *supply_names, |
324 | unsigned int num_supplies); |
325 | |
326 | bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2); |
327 | |
328 | #else |
329 | |
330 | /* |
331 | * Make sure client drivers will still build on systems with no software |
332 | * controllable voltage or current regulators. |
333 | */ |
334 | static inline struct regulator *__must_check regulator_get(struct device *dev, |
335 | const char *id) |
336 | { |
337 | /* Nothing except the stubbed out regulator API should be |
338 | * looking at the value except to check if it is an error |
339 | * value. Drivers are free to handle NULL specifically by |
340 | * skipping all regulator API calls, but they don't have to. |
341 | * Drivers which don't, should make sure they properly handle |
342 | * corner cases of the API, such as regulator_get_voltage() |
343 | * returning 0. |
344 | */ |
345 | return NULL; |
346 | } |
347 | |
348 | static inline struct regulator *__must_check |
349 | devm_regulator_get(struct device *dev, const char *id) |
350 | { |
351 | return NULL; |
352 | } |
353 | |
354 | static inline struct regulator *__must_check |
355 | regulator_get_exclusive(struct device *dev, const char *id) |
356 | { |
357 | return ERR_PTR(-ENODEV); |
358 | } |
359 | |
360 | static inline struct regulator *__must_check |
361 | devm_regulator_get_exclusive(struct device *dev, const char *id) |
362 | { |
363 | return ERR_PTR(-ENODEV); |
364 | } |
365 | |
366 | static inline int devm_regulator_get_enable(struct device *dev, const char *id) |
367 | { |
368 | return -ENODEV; |
369 | } |
370 | |
371 | static inline int devm_regulator_get_enable_optional(struct device *dev, |
372 | const char *id) |
373 | { |
374 | return -ENODEV; |
375 | } |
376 | |
377 | static inline struct regulator *__must_check |
378 | regulator_get_optional(struct device *dev, const char *id) |
379 | { |
380 | return ERR_PTR(-ENODEV); |
381 | } |
382 | |
383 | |
384 | static inline struct regulator *__must_check |
385 | devm_regulator_get_optional(struct device *dev, const char *id) |
386 | { |
387 | return ERR_PTR(-ENODEV); |
388 | } |
389 | |
390 | static inline void regulator_put(struct regulator *regulator) |
391 | { |
392 | } |
393 | |
394 | static inline void devm_regulator_put(struct regulator *regulator) |
395 | { |
396 | } |
397 | |
398 | static inline void devm_regulator_bulk_put(struct regulator_bulk_data *consumers) |
399 | { |
400 | } |
401 | |
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 | |
410 | static inline void regulator_unregister_supply_alias(struct device *dev, |
411 | const char *id) |
412 | { |
413 | } |
414 | |
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 | |
424 | static inline void regulator_bulk_unregister_supply_alias(struct device *dev, |
425 | const char * const *id, |
426 | int num_id) |
427 | { |
428 | } |
429 | |
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 | |
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 | |
447 | static inline int regulator_enable(struct regulator *regulator) |
448 | { |
449 | return 0; |
450 | } |
451 | |
452 | static inline int regulator_disable(struct regulator *regulator) |
453 | { |
454 | return 0; |
455 | } |
456 | |
457 | static inline int regulator_force_disable(struct regulator *regulator) |
458 | { |
459 | return 0; |
460 | } |
461 | |
462 | static inline int regulator_disable_deferred(struct regulator *regulator, |
463 | int ms) |
464 | { |
465 | return 0; |
466 | } |
467 | |
468 | static inline int regulator_is_enabled(struct regulator *regulator) |
469 | { |
470 | return 1; |
471 | } |
472 | |
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 | |
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 | |
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 | |
492 | static inline int regulator_bulk_enable(int num_consumers, |
493 | struct regulator_bulk_data *consumers) |
494 | { |
495 | return 0; |
496 | } |
497 | |
498 | static inline int devm_regulator_bulk_get_enable(struct device *dev, |
499 | int num_consumers, |
500 | const char * const *id) |
501 | { |
502 | return 0; |
503 | } |
504 | |
505 | static inline int regulator_bulk_disable(int num_consumers, |
506 | struct regulator_bulk_data *consumers) |
507 | { |
508 | return 0; |
509 | } |
510 | |
511 | static inline int regulator_bulk_force_disable(int num_consumers, |
512 | struct regulator_bulk_data *consumers) |
513 | { |
514 | return 0; |
515 | } |
516 | |
517 | static inline void regulator_bulk_free(int num_consumers, |
518 | struct regulator_bulk_data *consumers) |
519 | { |
520 | } |
521 | |
522 | static inline int regulator_set_voltage(struct regulator *regulator, |
523 | int min_uV, int max_uV) |
524 | { |
525 | return 0; |
526 | } |
527 | |
528 | static inline int regulator_set_voltage_time(struct regulator *regulator, |
529 | int old_uV, int new_uV) |
530 | { |
531 | return 0; |
532 | } |
533 | |
534 | static inline int regulator_get_voltage(struct regulator *regulator) |
535 | { |
536 | return -EINVAL; |
537 | } |
538 | |
539 | static inline int regulator_sync_voltage(struct regulator *regulator) |
540 | { |
541 | return -EINVAL; |
542 | } |
543 | |
544 | static inline int regulator_is_supported_voltage(struct regulator *regulator, |
545 | int min_uV, int max_uV) |
546 | { |
547 | return 0; |
548 | } |
549 | |
550 | static inline unsigned int regulator_get_linear_step(struct regulator *regulator) |
551 | { |
552 | return 0; |
553 | } |
554 | |
555 | static inline int regulator_set_current_limit(struct regulator *regulator, |
556 | int min_uA, int max_uA) |
557 | { |
558 | return 0; |
559 | } |
560 | |
561 | static inline int regulator_get_current_limit(struct regulator *regulator) |
562 | { |
563 | return 0; |
564 | } |
565 | |
566 | static inline int regulator_set_mode(struct regulator *regulator, |
567 | unsigned int mode) |
568 | { |
569 | return 0; |
570 | } |
571 | |
572 | static inline unsigned int regulator_get_mode(struct regulator *regulator) |
573 | { |
574 | return REGULATOR_MODE_NORMAL; |
575 | } |
576 | |
577 | static inline int regulator_get_error_flags(struct regulator *regulator, |
578 | unsigned int *flags) |
579 | { |
580 | return -EINVAL; |
581 | } |
582 | |
583 | static inline int regulator_set_load(struct regulator *regulator, int load_uA) |
584 | { |
585 | return 0; |
586 | } |
587 | |
588 | static inline int regulator_allow_bypass(struct regulator *regulator, |
589 | bool allow) |
590 | { |
591 | return 0; |
592 | } |
593 | |
594 | static inline struct regmap *regulator_get_regmap(struct regulator *regulator) |
595 | { |
596 | return ERR_PTR(-EOPNOTSUPP); |
597 | } |
598 | |
599 | static inline int regulator_get_hardware_vsel_register(struct regulator *regulator, |
600 | unsigned *vsel_reg, |
601 | unsigned *vsel_mask) |
602 | { |
603 | return -EOPNOTSUPP; |
604 | } |
605 | |
606 | static inline int regulator_list_hardware_vsel(struct regulator *regulator, |
607 | unsigned selector) |
608 | { |
609 | return -EOPNOTSUPP; |
610 | } |
611 | |
612 | static inline int regulator_register_notifier(struct regulator *regulator, |
613 | struct notifier_block *nb) |
614 | { |
615 | return 0; |
616 | } |
617 | |
618 | static inline int devm_regulator_register_notifier(struct regulator *regulator, |
619 | struct notifier_block *nb) |
620 | { |
621 | return 0; |
622 | } |
623 | |
624 | static inline int regulator_unregister_notifier(struct regulator *regulator, |
625 | struct notifier_block *nb) |
626 | { |
627 | return 0; |
628 | } |
629 | |
630 | static inline int devm_regulator_unregister_notifier(struct regulator *regulator, |
631 | struct notifier_block *nb) |
632 | { |
633 | return 0; |
634 | } |
635 | |
636 | static inline int regulator_suspend_enable(struct regulator_dev *rdev, |
637 | suspend_state_t state) |
638 | { |
639 | return -EINVAL; |
640 | } |
641 | |
642 | static inline int regulator_suspend_disable(struct regulator_dev *rdev, |
643 | suspend_state_t state) |
644 | { |
645 | return -EINVAL; |
646 | } |
647 | |
648 | static inline int regulator_set_suspend_voltage(struct regulator *regulator, |
649 | int min_uV, int max_uV, |
650 | suspend_state_t state) |
651 | { |
652 | return -EINVAL; |
653 | } |
654 | |
655 | static inline void *regulator_get_drvdata(struct regulator *regulator) |
656 | { |
657 | return NULL; |
658 | } |
659 | |
660 | static inline void regulator_set_drvdata(struct regulator *regulator, |
661 | void *data) |
662 | { |
663 | } |
664 | |
665 | static inline int regulator_count_voltages(struct regulator *regulator) |
666 | { |
667 | return 0; |
668 | } |
669 | |
670 | static inline int regulator_list_voltage(struct regulator *regulator, unsigned selector) |
671 | { |
672 | return -EINVAL; |
673 | } |
674 | |
675 | static inline void |
676 | regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers, |
677 | const char *const *supply_names, |
678 | unsigned int num_supplies) |
679 | { |
680 | } |
681 | |
682 | static inline bool |
683 | regulator_is_equal(struct regulator *reg1, struct regulator *reg2) |
684 | { |
685 | return false; |
686 | } |
687 | #endif |
688 | |
689 | static inline int regulator_set_voltage_triplet(struct regulator *regulator, |
690 | int min_uV, int target_uV, |
691 | int max_uV) |
692 | { |
693 | if (regulator_set_voltage(regulator, min_uV: target_uV, max_uV) == 0) |
694 | return 0; |
695 | |
696 | return regulator_set_voltage(regulator, min_uV, max_uV); |
697 | } |
698 | |
699 | static inline int regulator_set_voltage_tol(struct regulator *regulator, |
700 | int new_uV, int tol_uV) |
701 | { |
702 | if (regulator_set_voltage(regulator, min_uV: new_uV, max_uV: new_uV + tol_uV) == 0) |
703 | return 0; |
704 | else |
705 | return regulator_set_voltage(regulator, |
706 | min_uV: new_uV - tol_uV, max_uV: new_uV + tol_uV); |
707 | } |
708 | |
709 | static inline int regulator_is_supported_voltage_tol(struct regulator *regulator, |
710 | int target_uV, int tol_uV) |
711 | { |
712 | return regulator_is_supported_voltage(regulator, |
713 | min_uV: target_uV - tol_uV, |
714 | max_uV: target_uV + tol_uV); |
715 | } |
716 | |
717 | #endif |
718 | |