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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * pm_runtime.h - Device run-time power management helper functions.
4 *
5 * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>
6 */
7
8#ifndef _LINUX_PM_RUNTIME_H
9#define _LINUX_PM_RUNTIME_H
10
11#include <linux/device.h>
12#include <linux/notifier.h>
13#include <linux/pm.h>
14
15#include <linux/jiffies.h>
16
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 */
21#define RPM_GET_PUT 0x04 /* Increment/decrement the
22 usage_count */
23#define RPM_AUTO 0x08 /* Use autosuspend_delay */
24
25/*
26 * Use this for defining a set of PM operations to be used in all situations
27 * (system suspend, hibernation or runtime PM).
28 *
29 * Note that the behaviour differs from the deprecated UNIVERSAL_DEV_PM_OPS()
30 * macro, which uses the provided callbacks for both runtime PM and system
31 * sleep, while DEFINE_RUNTIME_DEV_PM_OPS() uses pm_runtime_force_suspend()
32 * and pm_runtime_force_resume() for its system sleep callbacks.
33 *
34 * If the underlying dev_pm_ops struct symbol has to be exported, use
35 * EXPORT_RUNTIME_DEV_PM_OPS() or EXPORT_GPL_RUNTIME_DEV_PM_OPS() instead.
36 */
37#define DEFINE_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
38 _DEFINE_DEV_PM_OPS(name, pm_runtime_force_suspend, \
39 pm_runtime_force_resume, suspend_fn, \
40 resume_fn, idle_fn)
41
42#define EXPORT_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
43 EXPORT_DEV_PM_OPS(name) = { \
44 RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
45 }
46#define EXPORT_GPL_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
47 EXPORT_GPL_DEV_PM_OPS(name) = { \
48 RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
49 }
50#define EXPORT_NS_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn, ns) \
51 EXPORT_NS_DEV_PM_OPS(name, ns) = { \
52 RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
53 }
54#define EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn, ns) \
55 EXPORT_NS_GPL_DEV_PM_OPS(name, ns) = { \
56 RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
57 }
58
59#ifdef CONFIG_PM
60extern struct workqueue_struct *pm_wq;
61
62static inline bool queue_pm_work(struct work_struct *work)
63{
64 return queue_work(pm_wq, work);
65}
66
67extern int pm_generic_runtime_suspend(struct device *dev);
68extern int pm_generic_runtime_resume(struct device *dev);
69extern bool pm_runtime_need_not_resume(struct device *dev);
70extern int pm_runtime_force_suspend(struct device *dev);
71extern int pm_runtime_force_resume(struct device *dev);
72
73extern int __pm_runtime_idle(struct device *dev, int rpmflags);
74extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
75extern int __pm_runtime_resume(struct device *dev, int rpmflags);
76extern int pm_runtime_get_if_active(struct device *dev);
77extern int pm_runtime_get_if_in_use(struct device *dev);
78extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
79extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
80extern int pm_runtime_barrier(struct device *dev);
81extern bool pm_runtime_block_if_disabled(struct device *dev);
82extern void pm_runtime_unblock(struct device *dev);
83extern void pm_runtime_enable(struct device *dev);
84extern void __pm_runtime_disable(struct device *dev, bool check_resume);
85extern void pm_runtime_allow(struct device *dev);
86extern void pm_runtime_forbid(struct device *dev);
87extern void pm_runtime_no_callbacks(struct device *dev);
88extern void pm_runtime_irq_safe(struct device *dev);
89extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
90extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
91extern u64 pm_runtime_autosuspend_expiration(struct device *dev);
92extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
93extern void pm_runtime_get_suppliers(struct device *dev);
94extern void pm_runtime_put_suppliers(struct device *dev);
95extern void pm_runtime_new_link(struct device *dev);
96extern void pm_runtime_drop_link(struct device_link *link);
97extern void pm_runtime_release_supplier(struct device_link *link);
98
99extern int devm_pm_runtime_enable(struct device *dev);
100
101/**
102 * pm_suspend_ignore_children - Set runtime PM behavior regarding children.
103 * @dev: Target device.
104 * @enable: Whether or not to ignore possible dependencies on children.
105 *
106 * The dependencies of @dev on its children will not be taken into account by
107 * the runtime PM framework going forward if @enable is %true, or they will
108 * be taken into account otherwise.
109 */
110static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
111{
112 dev->power.ignore_children = enable;
113}
114
115/**
116 * pm_runtime_get_noresume - Bump up runtime PM usage counter of a device.
117 * @dev: Target device.
118 */
119static inline void pm_runtime_get_noresume(struct device *dev)
120{
121 atomic_inc(&dev->power.usage_count);
122}
123
124/**
125 * pm_runtime_put_noidle - Drop runtime PM usage counter of a device.
126 * @dev: Target device.
127 *
128 * Decrement the runtime PM usage counter of @dev unless it is 0 already.
129 */
130static inline void pm_runtime_put_noidle(struct device *dev)
131{
132 atomic_add_unless(&dev->power.usage_count, -1, 0);
133}
134
135/**
136 * pm_runtime_suspended - Check whether or not a device is runtime-suspended.
137 * @dev: Target device.
138 *
139 * Return %true if runtime PM is enabled for @dev and its runtime PM status is
140 * %RPM_SUSPENDED, or %false otherwise.
141 *
142 * Note that the return value of this function can only be trusted if it is
143 * called under the runtime PM lock of @dev or under conditions in which
144 * runtime PM cannot be either disabled or enabled for @dev and its runtime PM
145 * status cannot change.
146 */
147static inline bool pm_runtime_suspended(struct device *dev)
148{
149 return dev->power.runtime_status == RPM_SUSPENDED
150 && !dev->power.disable_depth;
151}
152
153/**
154 * pm_runtime_active - Check whether or not a device is runtime-active.
155 * @dev: Target device.
156 *
157 * Return %true if runtime PM is disabled for @dev or its runtime PM status is
158 * %RPM_ACTIVE, or %false otherwise.
159 *
160 * Note that the return value of this function can only be trusted if it is
161 * called under the runtime PM lock of @dev or under conditions in which
162 * runtime PM cannot be either disabled or enabled for @dev and its runtime PM
163 * status cannot change.
164 */
165static inline bool pm_runtime_active(struct device *dev)
166{
167 return dev->power.runtime_status == RPM_ACTIVE
168 || dev->power.disable_depth;
169}
170
171/**
172 * pm_runtime_status_suspended - Check if runtime PM status is "suspended".
173 * @dev: Target device.
174 *
175 * Return %true if the runtime PM status of @dev is %RPM_SUSPENDED, or %false
176 * otherwise, regardless of whether or not runtime PM has been enabled for @dev.
177 *
178 * Note that the return value of this function can only be trusted if it is
179 * called under the runtime PM lock of @dev or under conditions in which the
180 * runtime PM status of @dev cannot change.
181 */
182static inline bool pm_runtime_status_suspended(struct device *dev)
183{
184 return dev->power.runtime_status == RPM_SUSPENDED;
185}
186
187/**
188 * pm_runtime_enabled - Check if runtime PM is enabled.
189 * @dev: Target device.
190 *
191 * Return %true if runtime PM is enabled for @dev or %false otherwise.
192 *
193 * Note that the return value of this function can only be trusted if it is
194 * called under the runtime PM lock of @dev or under conditions in which
195 * runtime PM cannot be either disabled or enabled for @dev.
196 */
197static inline bool pm_runtime_enabled(struct device *dev)
198{
199 return !dev->power.disable_depth;
200}
201
202/**
203 * pm_runtime_blocked - Check if runtime PM enabling is blocked.
204 * @dev: Target device.
205 *
206 * Do not call this function outside system suspend/resume code paths.
207 */
208static inline bool pm_runtime_blocked(struct device *dev)
209{
210 return dev->power.last_status == RPM_BLOCKED;
211}
212
213/**
214 * pm_runtime_has_no_callbacks - Check if runtime PM callbacks may be present.
215 * @dev: Target device.
216 *
217 * Return %true if @dev is a special device without runtime PM callbacks or
218 * %false otherwise.
219 */
220static inline bool pm_runtime_has_no_callbacks(struct device *dev)
221{
222 return dev->power.no_callbacks;
223}
224
225/**
226 * pm_runtime_mark_last_busy - Update the last access time of a device.
227 * @dev: Target device.
228 *
229 * Update the last access time of @dev used by the runtime PM autosuspend
230 * mechanism to the current time as returned by ktime_get_mono_fast_ns().
231 */
232static inline void pm_runtime_mark_last_busy(struct device *dev)
233{
234 WRITE_ONCE(dev->power.last_busy, ktime_get_mono_fast_ns());
235}
236
237/**
238 * pm_runtime_is_irq_safe - Check if runtime PM can work in interrupt context.
239 * @dev: Target device.
240 *
241 * Return %true if @dev has been marked as an "IRQ-safe" device (with respect
242 * to runtime PM), in which case its runtime PM callabcks can be expected to
243 * work correctly when invoked from interrupt handlers.
244 */
245static inline bool pm_runtime_is_irq_safe(struct device *dev)
246{
247 return dev->power.irq_safe;
248}
249
250extern u64 pm_runtime_suspended_time(struct device *dev);
251
252#else /* !CONFIG_PM */
253
254static inline bool queue_pm_work(struct work_struct *work) { return false; }
255
256static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
257static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
258static inline bool pm_runtime_need_not_resume(struct device *dev) {return true; }
259static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }
260static inline int pm_runtime_force_resume(struct device *dev) { return 0; }
261
262static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
263{
264 return -ENOSYS;
265}
266static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)
267{
268 return -ENOSYS;
269}
270static inline int __pm_runtime_resume(struct device *dev, int rpmflags)
271{
272 return 1;
273}
274static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
275{
276 return -ENOSYS;
277}
278static inline int pm_runtime_get_if_in_use(struct device *dev)
279{
280 return -EINVAL;
281}
282static inline int pm_runtime_get_if_active(struct device *dev)
283{
284 return -EINVAL;
285}
286static inline int __pm_runtime_set_status(struct device *dev,
287 unsigned int status) { return 0; }
288static inline int pm_runtime_barrier(struct device *dev) { return 0; }
289static inline bool pm_runtime_block_if_disabled(struct device *dev) { return true; }
290static inline void pm_runtime_unblock(struct device *dev) {}
291static inline void pm_runtime_enable(struct device *dev) {}
292static inline void __pm_runtime_disable(struct device *dev, bool c) {}
293static inline bool pm_runtime_blocked(struct device *dev) { return true; }
294static inline void pm_runtime_allow(struct device *dev) {}
295static inline void pm_runtime_forbid(struct device *dev) {}
296
297static inline int devm_pm_runtime_enable(struct device *dev) { return 0; }
298
299static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {}
300static inline void pm_runtime_get_noresume(struct device *dev) {}
301static inline void pm_runtime_put_noidle(struct device *dev) {}
302static inline bool pm_runtime_suspended(struct device *dev) { return false; }
303static inline bool pm_runtime_active(struct device *dev) { return true; }
304static inline bool pm_runtime_status_suspended(struct device *dev) { return false; }
305static inline bool pm_runtime_enabled(struct device *dev) { return false; }
306
307static inline void pm_runtime_no_callbacks(struct device *dev) {}
308static inline void pm_runtime_irq_safe(struct device *dev) {}
309static inline bool pm_runtime_is_irq_safe(struct device *dev) { return false; }
310
311static inline bool pm_runtime_has_no_callbacks(struct device *dev) { return false; }
312static inline void pm_runtime_mark_last_busy(struct device *dev) {}
313static inline void __pm_runtime_use_autosuspend(struct device *dev,
314 bool use) {}
315static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
316 int delay) {}
317static inline u64 pm_runtime_autosuspend_expiration(
318 struct device *dev) { return 0; }
319static inline void pm_runtime_set_memalloc_noio(struct device *dev,
320 bool enable){}
321static inline void pm_runtime_get_suppliers(struct device *dev) {}
322static inline void pm_runtime_put_suppliers(struct device *dev) {}
323static inline void pm_runtime_new_link(struct device *dev) {}
324static inline void pm_runtime_drop_link(struct device_link *link) {}
325static inline void pm_runtime_release_supplier(struct device_link *link) {}
326
327#endif /* !CONFIG_PM */
328
329/**
330 * pm_runtime_idle - Conditionally set up autosuspend of a device or suspend it.
331 * @dev: Target device.
332 *
333 * Invoke the "idle check" callback of @dev and, depending on its return value,
334 * set up autosuspend of @dev or suspend it (depending on whether or not
335 * autosuspend has been enabled for it).
336 */
337static inline int pm_runtime_idle(struct device *dev)
338{
339 return __pm_runtime_idle(dev, 0);
340}
341
342/**
343 * pm_runtime_suspend - Suspend a device synchronously.
344 * @dev: Target device.
345 */
346static inline int pm_runtime_suspend(struct device *dev)
347{
348 return __pm_runtime_suspend(dev, 0);
349}
350
351/**
352 * pm_runtime_autosuspend - Set up autosuspend of a device or suspend it.
353 * @dev: Target device.
354 *
355 * Set up autosuspend of @dev or suspend it (depending on whether or not
356 * autosuspend is enabled for it) without engaging its "idle check" callback.
357 */
358static inline int pm_runtime_autosuspend(struct device *dev)
359{
360 return __pm_runtime_suspend(dev, RPM_AUTO);
361}
362
363/**
364 * pm_runtime_resume - Resume a device synchronously.
365 * @dev: Target device.
366 */
367static inline int pm_runtime_resume(struct device *dev)
368{
369 return __pm_runtime_resume(dev, 0);
370}
371
372/**
373 * pm_request_idle - Queue up "idle check" execution for a device.
374 * @dev: Target device.
375 *
376 * Queue up a work item to run an equivalent of pm_runtime_idle() for @dev
377 * asynchronously.
378 */
379static inline int pm_request_idle(struct device *dev)
380{
381 return __pm_runtime_idle(dev, RPM_ASYNC);
382}
383
384/**
385 * pm_request_resume - Queue up runtime-resume of a device.
386 * @dev: Target device.
387 */
388static inline int pm_request_resume(struct device *dev)
389{
390 return __pm_runtime_resume(dev, RPM_ASYNC);
391}
392
393/**
394 * pm_request_autosuspend - Queue up autosuspend of a device.
395 * @dev: Target device.
396 *
397 * Queue up a work item to run an equivalent pm_runtime_autosuspend() for @dev
398 * asynchronously.
399 */
400static inline int pm_request_autosuspend(struct device *dev)
401{
402 return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);
403}
404
405/**
406 * pm_runtime_get - Bump up usage counter and queue up resume of a device.
407 * @dev: Target device.
408 *
409 * Bump up the runtime PM usage counter of @dev and queue up a work item to
410 * carry out runtime-resume of it.
411 */
412static inline int pm_runtime_get(struct device *dev)
413{
414 return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);
415}
416
417/**
418 * pm_runtime_get_sync - Bump up usage counter of a device and resume it.
419 * @dev: Target device.
420 *
421 * Bump up the runtime PM usage counter of @dev and carry out runtime-resume of
422 * it synchronously.
423 *
424 * The possible return values of this function are the same as for
425 * pm_runtime_resume() and the runtime PM usage counter of @dev remains
426 * incremented in all cases, even if it returns an error code.
427 * Consider using pm_runtime_resume_and_get() instead of it, especially
428 * if its return value is checked by the caller, as this is likely to result
429 * in cleaner code.
430 */
431static inline int pm_runtime_get_sync(struct device *dev)
432{
433 return __pm_runtime_resume(dev, RPM_GET_PUT);
434}
435
436/**
437 * pm_runtime_resume_and_get - Bump up usage counter of a device and resume it.
438 * @dev: Target device.
439 *
440 * Resume @dev synchronously and if that is successful, increment its runtime
441 * PM usage counter. Return 0 if the runtime PM usage counter of @dev has been
442 * incremented or a negative error code otherwise.
443 */
444static inline int pm_runtime_resume_and_get(struct device *dev)
445{
446 int ret;
447
448 ret = __pm_runtime_resume(dev, RPM_GET_PUT);
449 if (ret < 0) {
450 pm_runtime_put_noidle(dev);
451 return ret;
452 }
453
454 return 0;
455}
456
457/**
458 * pm_runtime_put - Drop device usage counter and queue up "idle check" if 0.
459 * @dev: Target device.
460 *
461 * Decrement the runtime PM usage counter of @dev and if it turns out to be
462 * equal to 0, queue up a work item for @dev like in pm_request_idle().
463 */
464static inline int pm_runtime_put(struct device *dev)
465{
466 return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
467}
468
469/**
470 * __pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0.
471 * @dev: Target device.
472 *
473 * Decrement the runtime PM usage counter of @dev and if it turns out to be
474 * equal to 0, queue up a work item for @dev like in pm_request_autosuspend().
475 */
476static inline int __pm_runtime_put_autosuspend(struct device *dev)
477{
478 return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
479}
480
481/**
482 * pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0.
483 * @dev: Target device.
484 *
485 * Decrement the runtime PM usage counter of @dev and if it turns out to be
486 * equal to 0, queue up a work item for @dev like in pm_request_autosuspend().
487 */
488static inline int pm_runtime_put_autosuspend(struct device *dev)
489{
490 return __pm_runtime_suspend(dev,
491 RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
492}
493
494/**
495 * pm_runtime_put_sync - Drop device usage counter and run "idle check" if 0.
496 * @dev: Target device.
497 *
498 * Decrement the runtime PM usage counter of @dev and if it turns out to be
499 * equal to 0, invoke the "idle check" callback of @dev and, depending on its
500 * return value, set up autosuspend of @dev or suspend it (depending on whether
501 * or not autosuspend has been enabled for it).
502 *
503 * The possible return values of this function are the same as for
504 * pm_runtime_idle() and the runtime PM usage counter of @dev remains
505 * decremented in all cases, even if it returns an error code.
506 */
507static inline int pm_runtime_put_sync(struct device *dev)
508{
509 return __pm_runtime_idle(dev, RPM_GET_PUT);
510}
511
512/**
513 * pm_runtime_put_sync_suspend - Drop device usage counter and suspend if 0.
514 * @dev: Target device.
515 *
516 * Decrement the runtime PM usage counter of @dev and if it turns out to be
517 * equal to 0, carry out runtime-suspend of @dev synchronously.
518 *
519 * The possible return values of this function are the same as for
520 * pm_runtime_suspend() and the runtime PM usage counter of @dev remains
521 * decremented in all cases, even if it returns an error code.
522 */
523static inline int pm_runtime_put_sync_suspend(struct device *dev)
524{
525 return __pm_runtime_suspend(dev, RPM_GET_PUT);
526}
527
528/**
529 * pm_runtime_put_sync_autosuspend - Drop device usage counter and autosuspend if 0.
530 * @dev: Target device.
531 *
532 * Decrement the runtime PM usage counter of @dev and if it turns out to be
533 * equal to 0, set up autosuspend of @dev or suspend it synchronously (depending
534 * on whether or not autosuspend has been enabled for it).
535 *
536 * The possible return values of this function are the same as for
537 * pm_runtime_autosuspend() and the runtime PM usage counter of @dev remains
538 * decremented in all cases, even if it returns an error code.
539 */
540static inline int pm_runtime_put_sync_autosuspend(struct device *dev)
541{
542 return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);
543}
544
545/**
546 * pm_runtime_set_active - Set runtime PM status to "active".
547 * @dev: Target device.
548 *
549 * Set the runtime PM status of @dev to %RPM_ACTIVE and ensure that dependencies
550 * of it will be taken into account.
551 *
552 * It is not valid to call this function for devices with runtime PM enabled.
553 */
554static inline int pm_runtime_set_active(struct device *dev)
555{
556 return __pm_runtime_set_status(dev, RPM_ACTIVE);
557}
558
559/**
560 * pm_runtime_set_suspended - Set runtime PM status to "suspended".
561 * @dev: Target device.
562 *
563 * Set the runtime PM status of @dev to %RPM_SUSPENDED and ensure that
564 * dependencies of it will be taken into account.
565 *
566 * It is not valid to call this function for devices with runtime PM enabled.
567 */
568static inline int pm_runtime_set_suspended(struct device *dev)
569{
570 return __pm_runtime_set_status(dev, RPM_SUSPENDED);
571}
572
573/**
574 * pm_runtime_disable - Disable runtime PM for a device.
575 * @dev: Target device.
576 *
577 * Prevent the runtime PM framework from working with @dev by incrementing its
578 * "disable" counter.
579 *
580 * If the counter is zero when this function runs and there is a pending runtime
581 * resume request for @dev, it will be resumed. If the counter is still zero at
582 * that point, all of the pending runtime PM requests for @dev will be canceled
583 * and all runtime PM operations in progress involving it will be waited for to
584 * complete.
585 *
586 * For each invocation of this function for @dev, there must be a matching
587 * pm_runtime_enable() call, so that runtime PM is eventually enabled for it
588 * again.
589 */
590static inline void pm_runtime_disable(struct device *dev)
591{
592 __pm_runtime_disable(dev, true);
593}
594
595/**
596 * pm_runtime_use_autosuspend - Allow autosuspend to be used for a device.
597 * @dev: Target device.
598 *
599 * Allow the runtime PM autosuspend mechanism to be used for @dev whenever
600 * requested (or "autosuspend" will be handled as direct runtime-suspend for
601 * it).
602 *
603 * NOTE: It's important to undo this with pm_runtime_dont_use_autosuspend()
604 * at driver exit time unless your driver initially enabled pm_runtime
605 * with devm_pm_runtime_enable() (which handles it for you).
606 */
607static inline void pm_runtime_use_autosuspend(struct device *dev)
608{
609 __pm_runtime_use_autosuspend(dev, true);
610}
611
612/**
613 * pm_runtime_dont_use_autosuspend - Prevent autosuspend from being used.
614 * @dev: Target device.
615 *
616 * Prevent the runtime PM autosuspend mechanism from being used for @dev which
617 * means that "autosuspend" will be handled as direct runtime-suspend for it
618 * going forward.
619 */
620static inline void pm_runtime_dont_use_autosuspend(struct device *dev)
621{
622 __pm_runtime_use_autosuspend(dev, false);
623}
624
625#endif