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55716d26 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
5e928f77 RW |
2 | /* |
3 | * pm_runtime.h - Device run-time power management helper functions. | |
4 | * | |
5 | * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl> | |
5e928f77 RW |
6 | */ |
7 | ||
8 | #ifndef _LINUX_PM_RUNTIME_H | |
9 | #define _LINUX_PM_RUNTIME_H | |
10 | ||
11 | #include <linux/device.h> | |
246359d3 | 12 | #include <linux/notifier.h> |
5e928f77 RW |
13 | #include <linux/pm.h> |
14 | ||
15bcb91d AS |
15 | #include <linux/jiffies.h> |
16 | ||
3f9af051 AS |
17 | /* Runtime PM flag argument bits */ |
18 | #define RPM_ASYNC 0x01 /* Request is asynchronous */ | |
19 | #define RPM_NOWAIT 0x02 /* Don't wait for concurrent | |
20 | state change */ | |
140a6c94 AS |
21 | #define RPM_GET_PUT 0x04 /* Increment/decrement the |
22 | usage_count */ | |
15bcb91d | 23 | #define RPM_AUTO 0x08 /* Use autosuspend_delay */ |
3f9af051 | 24 | |
717e5d45 | 25 | #ifdef CONFIG_PM |
28cb5ef1 RW |
26 | extern struct workqueue_struct *pm_wq; |
27 | ||
28 | static inline bool queue_pm_work(struct work_struct *work) | |
29 | { | |
30 | return queue_work(pm_wq, work); | |
31 | } | |
32 | ||
717e5d45 UH |
33 | extern int pm_generic_runtime_suspend(struct device *dev); |
34 | extern int pm_generic_runtime_resume(struct device *dev); | |
37f20416 UH |
35 | extern int pm_runtime_force_suspend(struct device *dev); |
36 | extern int pm_runtime_force_resume(struct device *dev); | |
5e928f77 | 37 | |
140a6c94 AS |
38 | extern int __pm_runtime_idle(struct device *dev, int rpmflags); |
39 | extern int __pm_runtime_suspend(struct device *dev, int rpmflags); | |
40 | extern int __pm_runtime_resume(struct device *dev, int rpmflags); | |
c111566b | 41 | extern int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count); |
5e928f77 | 42 | extern int pm_schedule_suspend(struct device *dev, unsigned int delay); |
5e928f77 RW |
43 | extern int __pm_runtime_set_status(struct device *dev, unsigned int status); |
44 | extern int pm_runtime_barrier(struct device *dev); | |
45 | extern void pm_runtime_enable(struct device *dev); | |
46 | extern void __pm_runtime_disable(struct device *dev, bool check_resume); | |
53823639 RW |
47 | extern void pm_runtime_allow(struct device *dev); |
48 | extern void pm_runtime_forbid(struct device *dev); | |
7490e442 | 49 | extern void pm_runtime_no_callbacks(struct device *dev); |
c7b61de5 | 50 | extern void pm_runtime_irq_safe(struct device *dev); |
15bcb91d AS |
51 | extern void __pm_runtime_use_autosuspend(struct device *dev, bool use); |
52 | extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay); | |
8234f673 | 53 | extern u64 pm_runtime_autosuspend_expiration(struct device *dev); |
00dc9ad1 RW |
54 | extern void pm_runtime_update_max_time_suspended(struct device *dev, |
55 | s64 delta_ns); | |
e823407f | 56 | extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable); |
21d5c57b | 57 | extern void pm_runtime_clean_up_links(struct device *dev); |
b06c0b2f RW |
58 | extern void pm_runtime_get_suppliers(struct device *dev); |
59 | extern void pm_runtime_put_suppliers(struct device *dev); | |
baa8809f RW |
60 | extern void pm_runtime_new_link(struct device *dev); |
61 | extern void pm_runtime_drop_link(struct device *dev); | |
5e928f77 | 62 | |
403d2d11 RW |
63 | /** |
64 | * pm_runtime_get_if_in_use - Conditionally bump up runtime PM usage counter. | |
65 | * @dev: Target device. | |
66 | * | |
67 | * Increment the runtime PM usage counter of @dev if its runtime PM status is | |
68 | * %RPM_ACTIVE and its runtime PM usage counter is greater than 0. | |
69 | */ | |
c111566b SA |
70 | static inline int pm_runtime_get_if_in_use(struct device *dev) |
71 | { | |
72 | return pm_runtime_get_if_active(dev, false); | |
73 | } | |
74 | ||
403d2d11 RW |
75 | /** |
76 | * pm_suspend_ignore_children - Set runtime PM behavior regarding children. | |
77 | * @dev: Target device. | |
78 | * @enable: Whether or not to ignore possible dependencies on children. | |
79 | * | |
80 | * The dependencies of @dev on its children will not be taken into account by | |
81 | * the runtime PM framework going forward if @enable is %true, or they will | |
82 | * be taken into account otherwise. | |
83 | */ | |
372a12ed UH |
84 | static inline void pm_suspend_ignore_children(struct device *dev, bool enable) |
85 | { | |
86 | dev->power.ignore_children = enable; | |
87 | } | |
88 | ||
403d2d11 RW |
89 | /** |
90 | * pm_runtime_get_noresume - Bump up runtime PM usage counter of a device. | |
91 | * @dev: Target device. | |
92 | */ | |
5e928f77 RW |
93 | static inline void pm_runtime_get_noresume(struct device *dev) |
94 | { | |
95 | atomic_inc(&dev->power.usage_count); | |
96 | } | |
97 | ||
403d2d11 RW |
98 | /** |
99 | * pm_runtime_put_noidle - Drop runtime PM usage counter of a device. | |
100 | * @dev: Target device. | |
101 | * | |
102 | * Decrement the runtime PM usage counter of @dev unless it is 0 already. | |
103 | */ | |
5e928f77 RW |
104 | static inline void pm_runtime_put_noidle(struct device *dev) |
105 | { | |
106 | atomic_add_unless(&dev->power.usage_count, -1, 0); | |
107 | } | |
108 | ||
403d2d11 RW |
109 | /** |
110 | * pm_runtime_suspended - Check whether or not a device is runtime-suspended. | |
111 | * @dev: Target device. | |
112 | * | |
113 | * Return %true if runtime PM is enabled for @dev and its runtime PM status is | |
114 | * %RPM_SUSPENDED, or %false otherwise. | |
115 | * | |
116 | * Note that the return value of this function can only be trusted if it is | |
117 | * called under the runtime PM lock of @dev or under conditions in which | |
118 | * runtime PM cannot be either disabled or enabled for @dev and its runtime PM | |
119 | * status cannot change. | |
120 | */ | |
d690b2cd RW |
121 | static inline bool pm_runtime_suspended(struct device *dev) |
122 | { | |
f08f5a0a RW |
123 | return dev->power.runtime_status == RPM_SUSPENDED |
124 | && !dev->power.disable_depth; | |
d690b2cd RW |
125 | } |
126 | ||
403d2d11 RW |
127 | /** |
128 | * pm_runtime_active - Check whether or not a device is runtime-active. | |
129 | * @dev: Target device. | |
130 | * | |
131 | * Return %true if runtime PM is enabled for @dev and its runtime PM status is | |
132 | * %RPM_ACTIVE, or %false otherwise. | |
133 | * | |
134 | * Note that the return value of this function can only be trusted if it is | |
135 | * called under the runtime PM lock of @dev or under conditions in which | |
136 | * runtime PM cannot be either disabled or enabled for @dev and its runtime PM | |
137 | * status cannot change. | |
138 | */ | |
fbadc58d SL |
139 | static inline bool pm_runtime_active(struct device *dev) |
140 | { | |
141 | return dev->power.runtime_status == RPM_ACTIVE | |
142 | || dev->power.disable_depth; | |
143 | } | |
144 | ||
403d2d11 RW |
145 | /** |
146 | * pm_runtime_status_suspended - Check if runtime PM status is "suspended". | |
147 | * @dev: Target device. | |
148 | * | |
149 | * Return %true if the runtime PM status of @dev is %RPM_SUSPENDED, or %false | |
150 | * otherwise, regardless of whether or not runtime PM has been enabled for @dev. | |
151 | * | |
152 | * Note that the return value of this function can only be trusted if it is | |
153 | * called under the runtime PM lock of @dev or under conditions in which the | |
154 | * runtime PM status of @dev cannot change. | |
155 | */ | |
f3393b62 KH |
156 | static inline bool pm_runtime_status_suspended(struct device *dev) |
157 | { | |
158 | return dev->power.runtime_status == RPM_SUSPENDED; | |
159 | } | |
160 | ||
403d2d11 RW |
161 | /** |
162 | * pm_runtime_enabled - Check if runtime PM is enabled. | |
163 | * @dev: Target device. | |
164 | * | |
165 | * Return %true if runtime PM is enabled for @dev or %false otherwise. | |
166 | * | |
167 | * Note that the return value of this function can only be trusted if it is | |
168 | * called under the runtime PM lock of @dev or under conditions in which | |
169 | * runtime PM cannot be either disabled or enabled for @dev. | |
170 | */ | |
4b31db8a RW |
171 | static inline bool pm_runtime_enabled(struct device *dev) |
172 | { | |
173 | return !dev->power.disable_depth; | |
174 | } | |
175 | ||
403d2d11 RW |
176 | /** |
177 | * pm_runtime_has_no_callbacks - Check if runtime PM callbacks may be present. | |
178 | * @dev: Target device. | |
179 | * | |
180 | * Return %true if @dev is a special device without runtime PM callbacks or | |
181 | * %false otherwise. | |
182 | */ | |
9a787546 | 183 | static inline bool pm_runtime_has_no_callbacks(struct device *dev) |
cb8f51bd | 184 | { |
9a787546 | 185 | return dev->power.no_callbacks; |
cb8f51bd RW |
186 | } |
187 | ||
403d2d11 RW |
188 | /** |
189 | * pm_runtime_mark_last_busy - Update the last access time of a device. | |
190 | * @dev: Target device. | |
191 | * | |
192 | * Update the last access time of @dev used by the runtime PM autosuspend | |
193 | * mechanism to the current time as returned by ktime_get_mono_fast_ns(). | |
194 | */ | |
15bcb91d AS |
195 | static inline void pm_runtime_mark_last_busy(struct device *dev) |
196 | { | |
15efb47d | 197 | WRITE_ONCE(dev->power.last_busy, ktime_get_mono_fast_ns()); |
15bcb91d AS |
198 | } |
199 | ||
403d2d11 RW |
200 | /** |
201 | * pm_runtime_is_irq_safe - Check if runtime PM can work in interrupt context. | |
202 | * @dev: Target device. | |
203 | * | |
204 | * Return %true if @dev has been marked as an "IRQ-safe" device (with respect | |
205 | * to runtime PM), in which case its runtime PM callabcks can be expected to | |
206 | * work correctly when invoked from interrupt handlers. | |
207 | */ | |
3fb1581e KK |
208 | static inline bool pm_runtime_is_irq_safe(struct device *dev) |
209 | { | |
210 | return dev->power.irq_safe; | |
211 | } | |
212 | ||
8a62ffe2 VG |
213 | extern u64 pm_runtime_suspended_time(struct device *dev); |
214 | ||
d30d819d RW |
215 | #else /* !CONFIG_PM */ |
216 | ||
217 | static inline bool queue_pm_work(struct work_struct *work) { return false; } | |
218 | ||
219 | static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } | |
220 | static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } | |
221 | static inline int pm_runtime_force_suspend(struct device *dev) { return 0; } | |
222 | static inline int pm_runtime_force_resume(struct device *dev) { return 0; } | |
5e928f77 | 223 | |
140a6c94 AS |
224 | static inline int __pm_runtime_idle(struct device *dev, int rpmflags) |
225 | { | |
226 | return -ENOSYS; | |
227 | } | |
228 | static inline int __pm_runtime_suspend(struct device *dev, int rpmflags) | |
229 | { | |
230 | return -ENOSYS; | |
231 | } | |
232 | static inline int __pm_runtime_resume(struct device *dev, int rpmflags) | |
233 | { | |
234 | return 1; | |
235 | } | |
5e928f77 RW |
236 | static inline int pm_schedule_suspend(struct device *dev, unsigned int delay) |
237 | { | |
238 | return -ENOSYS; | |
239 | } | |
a436b6a1 RW |
240 | static inline int pm_runtime_get_if_in_use(struct device *dev) |
241 | { | |
242 | return -EINVAL; | |
243 | } | |
c111566b SA |
244 | static inline int pm_runtime_get_if_active(struct device *dev, |
245 | bool ign_usage_count) | |
246 | { | |
247 | return -EINVAL; | |
248 | } | |
5e928f77 RW |
249 | static inline int __pm_runtime_set_status(struct device *dev, |
250 | unsigned int status) { return 0; } | |
251 | static inline int pm_runtime_barrier(struct device *dev) { return 0; } | |
252 | static inline void pm_runtime_enable(struct device *dev) {} | |
253 | static inline void __pm_runtime_disable(struct device *dev, bool c) {} | |
53823639 RW |
254 | static inline void pm_runtime_allow(struct device *dev) {} |
255 | static inline void pm_runtime_forbid(struct device *dev) {} | |
5e928f77 | 256 | |
372a12ed | 257 | static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {} |
5e928f77 RW |
258 | static inline void pm_runtime_get_noresume(struct device *dev) {} |
259 | static inline void pm_runtime_put_noidle(struct device *dev) {} | |
d690b2cd | 260 | static inline bool pm_runtime_suspended(struct device *dev) { return false; } |
fbadc58d | 261 | static inline bool pm_runtime_active(struct device *dev) { return true; } |
f3393b62 | 262 | static inline bool pm_runtime_status_suspended(struct device *dev) { return false; } |
4b31db8a | 263 | static inline bool pm_runtime_enabled(struct device *dev) { return false; } |
5e928f77 | 264 | |
7490e442 | 265 | static inline void pm_runtime_no_callbacks(struct device *dev) {} |
c7b61de5 | 266 | static inline void pm_runtime_irq_safe(struct device *dev) {} |
3fb1581e | 267 | static inline bool pm_runtime_is_irq_safe(struct device *dev) { return false; } |
2f60ba70 | 268 | |
cb8f51bd | 269 | static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; } |
15bcb91d AS |
270 | static inline void pm_runtime_mark_last_busy(struct device *dev) {} |
271 | static inline void __pm_runtime_use_autosuspend(struct device *dev, | |
272 | bool use) {} | |
273 | static inline void pm_runtime_set_autosuspend_delay(struct device *dev, | |
274 | int delay) {} | |
8234f673 | 275 | static inline u64 pm_runtime_autosuspend_expiration( |
15bcb91d | 276 | struct device *dev) { return 0; } |
e823407f ML |
277 | static inline void pm_runtime_set_memalloc_noio(struct device *dev, |
278 | bool enable){} | |
21d5c57b | 279 | static inline void pm_runtime_clean_up_links(struct device *dev) {} |
b06c0b2f RW |
280 | static inline void pm_runtime_get_suppliers(struct device *dev) {} |
281 | static inline void pm_runtime_put_suppliers(struct device *dev) {} | |
baa8809f RW |
282 | static inline void pm_runtime_new_link(struct device *dev) {} |
283 | static inline void pm_runtime_drop_link(struct device *dev) {} | |
15bcb91d | 284 | |
d30d819d | 285 | #endif /* !CONFIG_PM */ |
5e928f77 | 286 | |
403d2d11 RW |
287 | /** |
288 | * pm_runtime_idle - Conditionally set up autosuspend of a device or suspend it. | |
289 | * @dev: Target device. | |
290 | * | |
291 | * Invoke the "idle check" callback of @dev and, depending on its return value, | |
292 | * set up autosuspend of @dev or suspend it (depending on whether or not | |
293 | * autosuspend has been enabled for it). | |
294 | */ | |
140a6c94 AS |
295 | static inline int pm_runtime_idle(struct device *dev) |
296 | { | |
297 | return __pm_runtime_idle(dev, 0); | |
298 | } | |
299 | ||
403d2d11 RW |
300 | /** |
301 | * pm_runtime_suspend - Suspend a device synchronously. | |
302 | * @dev: Target device. | |
303 | */ | |
140a6c94 AS |
304 | static inline int pm_runtime_suspend(struct device *dev) |
305 | { | |
306 | return __pm_runtime_suspend(dev, 0); | |
307 | } | |
308 | ||
403d2d11 RW |
309 | /** |
310 | * pm_runtime_autosuspend - Set up autosuspend of a device or suspend it. | |
311 | * @dev: Target device. | |
312 | * | |
313 | * Set up autosuspend of @dev or suspend it (depending on whether or not | |
314 | * autosuspend is enabled for it) without engaging its "idle check" callback. | |
315 | */ | |
15bcb91d AS |
316 | static inline int pm_runtime_autosuspend(struct device *dev) |
317 | { | |
318 | return __pm_runtime_suspend(dev, RPM_AUTO); | |
319 | } | |
320 | ||
403d2d11 RW |
321 | /** |
322 | * pm_runtime_resume - Resume a device synchronously. | |
323 | * @dev: Target device. | |
324 | */ | |
140a6c94 AS |
325 | static inline int pm_runtime_resume(struct device *dev) |
326 | { | |
327 | return __pm_runtime_resume(dev, 0); | |
328 | } | |
329 | ||
403d2d11 RW |
330 | /** |
331 | * pm_request_idle - Queue up "idle check" execution for a device. | |
332 | * @dev: Target device. | |
333 | * | |
334 | * Queue up a work item to run an equivalent of pm_runtime_idle() for @dev | |
335 | * asynchronously. | |
336 | */ | |
140a6c94 AS |
337 | static inline int pm_request_idle(struct device *dev) |
338 | { | |
339 | return __pm_runtime_idle(dev, RPM_ASYNC); | |
340 | } | |
341 | ||
403d2d11 RW |
342 | /** |
343 | * pm_request_resume - Queue up runtime-resume of a device. | |
344 | * @dev: Target device. | |
345 | */ | |
140a6c94 AS |
346 | static inline int pm_request_resume(struct device *dev) |
347 | { | |
348 | return __pm_runtime_resume(dev, RPM_ASYNC); | |
349 | } | |
350 | ||
403d2d11 RW |
351 | /** |
352 | * pm_request_autosuspend - Queue up autosuspend of a device. | |
353 | * @dev: Target device. | |
354 | * | |
355 | * Queue up a work item to run an equivalent pm_runtime_autosuspend() for @dev | |
356 | * asynchronously. | |
357 | */ | |
5fc62aad ML |
358 | static inline int pm_request_autosuspend(struct device *dev) |
359 | { | |
360 | return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO); | |
361 | } | |
362 | ||
403d2d11 RW |
363 | /** |
364 | * pm_runtime_get - Bump up usage counter and queue up resume of a device. | |
365 | * @dev: Target device. | |
366 | * | |
367 | * Bump up the runtime PM usage counter of @dev and queue up a work item to | |
368 | * carry out runtime-resume of it. | |
369 | */ | |
5e928f77 RW |
370 | static inline int pm_runtime_get(struct device *dev) |
371 | { | |
140a6c94 | 372 | return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC); |
5e928f77 RW |
373 | } |
374 | ||
403d2d11 RW |
375 | /** |
376 | * pm_runtime_get_sync - Bump up usage counter of a device and resume it. | |
377 | * @dev: Target device. | |
378 | * | |
379 | * Bump up the runtime PM usage counter of @dev and carry out runtime-resume of | |
380 | * it synchronously. | |
381 | * | |
382 | * The possible return values of this function are the same as for | |
383 | * pm_runtime_resume() and the runtime PM usage counter of @dev remains | |
384 | * incremented in all cases, even if it returns an error code. | |
385 | */ | |
5e928f77 RW |
386 | static inline int pm_runtime_get_sync(struct device *dev) |
387 | { | |
140a6c94 | 388 | return __pm_runtime_resume(dev, RPM_GET_PUT); |
5e928f77 RW |
389 | } |
390 | ||
403d2d11 RW |
391 | /** |
392 | * pm_runtime_put - Drop device usage counter and queue up "idle check" if 0. | |
393 | * @dev: Target device. | |
394 | * | |
395 | * Decrement the runtime PM usage counter of @dev and if it turns out to be | |
396 | * equal to 0, queue up a work item for @dev like in pm_request_idle(). | |
397 | */ | |
5e928f77 RW |
398 | static inline int pm_runtime_put(struct device *dev) |
399 | { | |
140a6c94 | 400 | return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC); |
5e928f77 RW |
401 | } |
402 | ||
403d2d11 RW |
403 | /** |
404 | * pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0. | |
405 | * @dev: Target device. | |
406 | * | |
407 | * Decrement the runtime PM usage counter of @dev and if it turns out to be | |
408 | * equal to 0, queue up a work item for @dev like in pm_request_autosuspend(). | |
409 | */ | |
15bcb91d AS |
410 | static inline int pm_runtime_put_autosuspend(struct device *dev) |
411 | { | |
412 | return __pm_runtime_suspend(dev, | |
413 | RPM_GET_PUT | RPM_ASYNC | RPM_AUTO); | |
414 | } | |
415 | ||
403d2d11 RW |
416 | /** |
417 | * pm_runtime_put_sync - Drop device usage counter and run "idle check" if 0. | |
418 | * @dev: Target device. | |
419 | * | |
420 | * Decrement the runtime PM usage counter of @dev and if it turns out to be | |
421 | * equal to 0, invoke the "idle check" callback of @dev and, depending on its | |
422 | * return value, set up autosuspend of @dev or suspend it (depending on whether | |
423 | * or not autosuspend has been enabled for it). | |
424 | * | |
425 | * The possible return values of this function are the same as for | |
426 | * pm_runtime_idle() and the runtime PM usage counter of @dev remains | |
427 | * decremented in all cases, even if it returns an error code. | |
428 | */ | |
5e928f77 RW |
429 | static inline int pm_runtime_put_sync(struct device *dev) |
430 | { | |
140a6c94 | 431 | return __pm_runtime_idle(dev, RPM_GET_PUT); |
5e928f77 RW |
432 | } |
433 | ||
403d2d11 RW |
434 | /** |
435 | * pm_runtime_put_sync_suspend - Drop device usage counter and suspend if 0. | |
436 | * @dev: Target device. | |
437 | * | |
438 | * Decrement the runtime PM usage counter of @dev and if it turns out to be | |
439 | * equal to 0, carry out runtime-suspend of @dev synchronously. | |
440 | * | |
441 | * The possible return values of this function are the same as for | |
442 | * pm_runtime_suspend() and the runtime PM usage counter of @dev remains | |
443 | * decremented in all cases, even if it returns an error code. | |
444 | */ | |
c7b61de5 AS |
445 | static inline int pm_runtime_put_sync_suspend(struct device *dev) |
446 | { | |
447 | return __pm_runtime_suspend(dev, RPM_GET_PUT); | |
448 | } | |
449 | ||
403d2d11 RW |
450 | /** |
451 | * pm_runtime_put_sync_autosuspend - Drop device usage counter and autosuspend if 0. | |
452 | * @dev: Target device. | |
453 | * | |
454 | * Decrement the runtime PM usage counter of @dev and if it turns out to be | |
455 | * equal to 0, set up autosuspend of @dev or suspend it synchronously (depending | |
456 | * on whether or not autosuspend has been enabled for it). | |
457 | * | |
458 | * The possible return values of this function are the same as for | |
459 | * pm_runtime_autosuspend() and the runtime PM usage counter of @dev remains | |
460 | * decremented in all cases, even if it returns an error code. | |
461 | */ | |
15bcb91d AS |
462 | static inline int pm_runtime_put_sync_autosuspend(struct device *dev) |
463 | { | |
464 | return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO); | |
465 | } | |
466 | ||
403d2d11 RW |
467 | /** |
468 | * pm_runtime_set_active - Set runtime PM status to "active". | |
469 | * @dev: Target device. | |
470 | * | |
471 | * Set the runtime PM status of @dev to %RPM_ACTIVE and ensure that dependencies | |
472 | * of it will be taken into account. | |
473 | * | |
474 | * It is not valid to call this function for devices with runtime PM enabled. | |
475 | */ | |
5e928f77 RW |
476 | static inline int pm_runtime_set_active(struct device *dev) |
477 | { | |
478 | return __pm_runtime_set_status(dev, RPM_ACTIVE); | |
479 | } | |
480 | ||
403d2d11 RW |
481 | /** |
482 | * pm_runtime_set_suspended - Set runtime PM status to "active". | |
483 | * @dev: Target device. | |
484 | * | |
485 | * Set the runtime PM status of @dev to %RPM_SUSPENDED and ensure that | |
486 | * dependencies of it will be taken into account. | |
487 | * | |
488 | * It is not valid to call this function for devices with runtime PM enabled. | |
489 | */ | |
b1a60995 | 490 | static inline int pm_runtime_set_suspended(struct device *dev) |
5e928f77 | 491 | { |
b1a60995 | 492 | return __pm_runtime_set_status(dev, RPM_SUSPENDED); |
5e928f77 RW |
493 | } |
494 | ||
403d2d11 RW |
495 | /** |
496 | * pm_runtime_disable - Disable runtime PM for a device. | |
497 | * @dev: Target device. | |
498 | * | |
499 | * Prevent the runtime PM framework from working with @dev (by incrementing its | |
500 | * "blocking" counter). | |
501 | * | |
502 | * For each invocation of this function for @dev there must be a matching | |
503 | * pm_runtime_enable() call in order for runtime PM to be enabled for it. | |
504 | */ | |
5e928f77 RW |
505 | static inline void pm_runtime_disable(struct device *dev) |
506 | { | |
507 | __pm_runtime_disable(dev, true); | |
508 | } | |
509 | ||
403d2d11 RW |
510 | /** |
511 | * pm_runtime_use_autosuspend - Allow autosuspend to be used for a device. | |
512 | * @dev: Target device. | |
513 | * | |
514 | * Allow the runtime PM autosuspend mechanism to be used for @dev whenever | |
515 | * requested (or "autosuspend" will be handled as direct runtime-suspend for | |
516 | * it). | |
517 | */ | |
15bcb91d AS |
518 | static inline void pm_runtime_use_autosuspend(struct device *dev) |
519 | { | |
520 | __pm_runtime_use_autosuspend(dev, true); | |
521 | } | |
522 | ||
403d2d11 RW |
523 | /** |
524 | * pm_runtime_dont_use_autosuspend - Prevent autosuspend from being used. | |
525 | * @dev: Target device. | |
526 | * | |
527 | * Prevent the runtime PM autosuspend mechanism from being used for @dev which | |
528 | * means that "autosuspend" will be handled as direct runtime-suspend for it | |
529 | * going forward. | |
530 | */ | |
15bcb91d AS |
531 | static inline void pm_runtime_dont_use_autosuspend(struct device *dev) |
532 | { | |
533 | __pm_runtime_use_autosuspend(dev, false); | |
534 | } | |
535 | ||
5e928f77 | 536 | #endif |