33 extern int pm_generic_runtime_suspend(struct device *dev);
34 extern int pm_generic_runtime_resume(struct device *dev);
35 extern int pm_runtime_force_suspend(struct device *dev);
36 extern int pm_runtime_force_resume(struct device *dev);
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);
41 extern int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count);
42 extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
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);
47 extern void pm_runtime_allow(struct device *dev);
48 extern void pm_runtime_forbid(struct device *dev);
49 extern void pm_runtime_no_callbacks(struct device *dev);
50 extern void pm_runtime_irq_safe(struct device *dev);
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);
53 extern u64 pm_runtime_autosuspend_expiration(struct device *dev);
54 extern void pm_runtime_update_max_time_suspended(struct device *dev,
56 extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
57 extern void pm_runtime_get_suppliers(struct device *dev);
58 extern void pm_runtime_put_suppliers(struct device *dev);
59 extern void pm_runtime_new_link(struct device *dev);
64  * @dev: Target device.
66  * Increment the runtime PM usage counter of @dev if its runtime PM status is
69 static inline int pm_runtime_get_if_in_use(struct device *dev)  in pm_runtime_get_if_in_use()  argument
71 	return pm_runtime_get_if_active(dev, false);  in pm_runtime_get_if_in_use()
76  * @dev: Target device.
79  * The dependencies of @dev on its children will not be taken into account by
83 static inline void pm_suspend_ignore_children(struct device *dev, bool enable)  in pm_suspend_ignore_children()  argument
85 	dev->power.ignore_children = enable;  in pm_suspend_ignore_children()
90  * @dev: Target device.
92 static inline void pm_runtime_get_noresume(struct device *dev)  in pm_runtime_get_noresume()  argument
94 	atomic_inc(&dev->power.usage_count);  in pm_runtime_get_noresume()
99  * @dev: Target device.
101  * Decrement the runtime PM usage counter of @dev unless it is 0 already.
103 static inline void pm_runtime_put_noidle(struct device *dev)  in pm_runtime_put_noidle()  argument
105 	atomic_add_unless(&dev->power.usage_count, -1, 0);  in pm_runtime_put_noidle()
110  * @dev: Target device.
112  * Return %true if runtime PM is enabled for @dev and its runtime PM status is
116  * called under the runtime PM lock of @dev or under conditions in which
117  * runtime PM cannot be either disabled or enabled for @dev and its runtime PM
120 static inline bool pm_runtime_suspended(struct device *dev)  in pm_runtime_suspended()  argument
122 	return dev->power.runtime_status == RPM_SUSPENDED  in pm_runtime_suspended()
123 		&& !dev->power.disable_depth;  in pm_runtime_suspended()
128  * @dev: Target device.
130  * Return %true if runtime PM is enabled for @dev and its runtime PM status is
134  * called under the runtime PM lock of @dev or under conditions in which
135  * runtime PM cannot be either disabled or enabled for @dev and its runtime PM
138 static inline bool pm_runtime_active(struct device *dev)  in pm_runtime_active()  argument
140 	return dev->power.runtime_status == RPM_ACTIVE  in pm_runtime_active()
141 		|| dev->power.disable_depth;  in pm_runtime_active()
146  * @dev: Target device.
148  * Return %true if the runtime PM status of @dev is %RPM_SUSPENDED, or %false
149  * otherwise, regardless of whether or not runtime PM has been enabled for @dev.
152  * called under the runtime PM lock of @dev or under conditions in which the
153  * runtime PM status of @dev cannot change.
155 static inline bool pm_runtime_status_suspended(struct device *dev)  in pm_runtime_status_suspended()  argument
157 	return dev->power.runtime_status == RPM_SUSPENDED;  in pm_runtime_status_suspended()
162  * @dev: Target device.
164  * Return %true if runtime PM is enabled for @dev or %false otherwise.
167  * called under the runtime PM lock of @dev or under conditions in which
168  * runtime PM cannot be either disabled or enabled for @dev.
170 static inline bool pm_runtime_enabled(struct device *dev)  in pm_runtime_enabled()  argument
172 	return !dev->power.disable_depth;  in pm_runtime_enabled()
177  * @dev: Target device.
179  * Return %true if @dev is a special device without runtime PM callbacks or
182 static inline bool pm_runtime_has_no_callbacks(struct device *dev)  in pm_runtime_has_no_callbacks()  argument
184 	return dev->power.no_callbacks;  in pm_runtime_has_no_callbacks()
189  * @dev: Target device.
191  * Update the last access time of @dev used by the runtime PM autosuspend
194 static inline void pm_runtime_mark_last_busy(struct device *dev)  in pm_runtime_mark_last_busy()  argument
196 	WRITE_ONCE(dev->power.last_busy, ktime_get_mono_fast_ns());  in pm_runtime_mark_last_busy()
201  * @dev: Target device.
203  * Return %true if @dev has been marked as an "IRQ-safe" device (with respect
207 static inline bool pm_runtime_is_irq_safe(struct device *dev)  in pm_runtime_is_irq_safe()  argument
209 	return dev->power.irq_safe;  in pm_runtime_is_irq_safe()
212 extern u64 pm_runtime_suspended_time(struct device *dev);
218 static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }  in pm_generic_runtime_suspend()  argument
219 static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }  in pm_generic_runtime_resume()  argument
220 static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }  in pm_runtime_force_suspend()  argument
221 static inline int pm_runtime_force_resume(struct device *dev) { return 0; }  in pm_runtime_force_resume()  argument
223 static inline int __pm_runtime_idle(struct device *dev, int rpmflags)  in __pm_runtime_idle()  argument
227 static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)  in __pm_runtime_suspend()  argument
231 static inline int __pm_runtime_resume(struct device *dev, int rpmflags)  in __pm_runtime_resume()  argument
235 static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)  in pm_schedule_suspend()  argument
239 static inline int pm_runtime_get_if_in_use(struct device *dev)  in pm_runtime_get_if_in_use()  argument
243 static inline int pm_runtime_get_if_active(struct device *dev,  in pm_runtime_get_if_active()  argument
248 static inline int __pm_runtime_set_status(struct device *dev,  in __pm_runtime_set_status()  argument
250 static inline int pm_runtime_barrier(struct device *dev) { return 0; }  in pm_runtime_barrier()  argument
251 static inline void pm_runtime_enable(struct device *dev) {}  in pm_runtime_enable()  argument
252 static inline void __pm_runtime_disable(struct device *dev, bool c) {}  in __pm_runtime_disable()  argument
253 static inline void pm_runtime_allow(struct device *dev) {}  in pm_runtime_allow()  argument
254 static inline void pm_runtime_forbid(struct device *dev) {}  in pm_runtime_forbid()  argument
256 static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {}  in pm_suspend_ignore_children()  argument
257 static inline void pm_runtime_get_noresume(struct device *dev) {}  in pm_runtime_get_noresume()  argument
258 static inline void pm_runtime_put_noidle(struct device *dev) {}  in pm_runtime_put_noidle()  argument
259 static inline bool pm_runtime_suspended(struct device *dev) { return false; }  in pm_runtime_suspended()  argument
260 static inline bool pm_runtime_active(struct device *dev) { return true; }  in pm_runtime_active()  argument
261 static inline bool pm_runtime_status_suspended(struct device *dev) { return false; }  in pm_runtime_status_suspended()  argument
262 static inline bool pm_runtime_enabled(struct device *dev) { return false; }  in pm_runtime_enabled()  argument
264 static inline void pm_runtime_no_callbacks(struct device *dev) {}  in pm_runtime_no_callbacks()  argument
265 static inline void pm_runtime_irq_safe(struct device *dev) {}  in pm_runtime_irq_safe()  argument
266 static inline bool pm_runtime_is_irq_safe(struct device *dev) { return false; }  in pm_runtime_is_irq_safe()  argument
268 static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; }  in pm_runtime_callbacks_present()  argument
269 static inline void pm_runtime_mark_last_busy(struct device *dev) {}  in pm_runtime_mark_last_busy()  argument
270 static inline void __pm_runtime_use_autosuspend(struct device *dev,  in __pm_runtime_use_autosuspend()  argument
272 static inline void pm_runtime_set_autosuspend_delay(struct device *dev,  in pm_runtime_set_autosuspend_delay()  argument
275 				struct device *dev) { return 0; }  in pm_runtime_autosuspend_expiration()  argument
276 static inline void pm_runtime_set_memalloc_noio(struct device *dev,  in pm_runtime_set_memalloc_noio()  argument
278 static inline void pm_runtime_get_suppliers(struct device *dev) {}  in pm_runtime_get_suppliers()  argument
279 static inline void pm_runtime_put_suppliers(struct device *dev) {}  in pm_runtime_put_suppliers()  argument
280 static inline void pm_runtime_new_link(struct device *dev) {}  in pm_runtime_new_link()  argument
287  * @dev: Target device.
289  * Invoke the "idle check" callback of @dev and, depending on its return value,
290  * set up autosuspend of @dev or suspend it (depending on whether or not
293 static inline int pm_runtime_idle(struct device *dev)  in pm_runtime_idle()  argument
295 	return __pm_runtime_idle(dev, 0);  in pm_runtime_idle()
300  * @dev: Target device.
302 static inline int pm_runtime_suspend(struct device *dev)  in pm_runtime_suspend()  argument
304 	return __pm_runtime_suspend(dev, 0);  in pm_runtime_suspend()
309  * @dev: Target device.
311  * Set up autosuspend of @dev or suspend it (depending on whether or not
314 static inline int pm_runtime_autosuspend(struct device *dev)  in pm_runtime_autosuspend()  argument
316 	return __pm_runtime_suspend(dev, RPM_AUTO);  in pm_runtime_autosuspend()
321  * @dev: Target device.
323 static inline int pm_runtime_resume(struct device *dev)  in pm_runtime_resume()  argument
325 	return __pm_runtime_resume(dev, 0);  in pm_runtime_resume()
330  * @dev: Target device.
332  * Queue up a work item to run an equivalent of pm_runtime_idle() for @dev
335 static inline int pm_request_idle(struct device *dev)  in pm_request_idle()  argument
337 	return __pm_runtime_idle(dev, RPM_ASYNC);  in pm_request_idle()
342  * @dev: Target device.
344 static inline int pm_request_resume(struct device *dev)  in pm_request_resume()  argument
346 	return __pm_runtime_resume(dev, RPM_ASYNC);  in pm_request_resume()
351  * @dev: Target device.
353  * Queue up a work item to run an equivalent pm_runtime_autosuspend() for @dev
356 static inline int pm_request_autosuspend(struct device *dev)  in pm_request_autosuspend()  argument
358 	return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);  in pm_request_autosuspend()
363  * @dev: Target device.
365  * Bump up the runtime PM usage counter of @dev and queue up a work item to
368 static inline int pm_runtime_get(struct device *dev)  in pm_runtime_get()  argument
370 	return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);  in pm_runtime_get()
375  * @dev: Target device.
377  * Bump up the runtime PM usage counter of @dev and carry out runtime-resume of
381  * pm_runtime_resume() and the runtime PM usage counter of @dev remains
384 static inline int pm_runtime_get_sync(struct device *dev)  in pm_runtime_get_sync()  argument
386 	return __pm_runtime_resume(dev, RPM_GET_PUT);  in pm_runtime_get_sync()
391  * @dev: Target device.
393  * Resume @dev synchronously and if that is successful, increment its runtime
394  * PM usage counter. Return 0 if the runtime PM usage counter of @dev has been
397 static inline int pm_runtime_resume_and_get(struct device *dev)  in pm_runtime_resume_and_get()  argument
401 	ret = __pm_runtime_resume(dev, RPM_GET_PUT);  in pm_runtime_resume_and_get()
403 		pm_runtime_put_noidle(dev);  in pm_runtime_resume_and_get()
412  * @dev: Target device.
414  * Decrement the runtime PM usage counter of @dev and if it turns out to be
415  * equal to 0, queue up a work item for @dev like in pm_request_idle().
417 static inline int pm_runtime_put(struct device *dev)  in pm_runtime_put()  argument
419 	return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);  in pm_runtime_put()
424  * @dev: Target device.
426  * Decrement the runtime PM usage counter of @dev and if it turns out to be
427  * equal to 0, queue up a work item for @dev like in pm_request_autosuspend().
429 static inline int pm_runtime_put_autosuspend(struct device *dev)  in pm_runtime_put_autosuspend()  argument
431 	return __pm_runtime_suspend(dev,  in pm_runtime_put_autosuspend()
437  * @dev: Target device.
439  * Decrement the runtime PM usage counter of @dev and if it turns out to be
440  * equal to 0, invoke the "idle check" callback of @dev and, depending on its
441  * return value, set up autosuspend of @dev or suspend it (depending on whether
445  * pm_runtime_idle() and the runtime PM usage counter of @dev remains
448 static inline int pm_runtime_put_sync(struct device *dev)  in pm_runtime_put_sync()  argument
450 	return __pm_runtime_idle(dev, RPM_GET_PUT);  in pm_runtime_put_sync()
455  * @dev: Target device.
457  * Decrement the runtime PM usage counter of @dev and if it turns out to be
458  * equal to 0, carry out runtime-suspend of @dev synchronously.
461  * pm_runtime_suspend() and the runtime PM usage counter of @dev remains
464 static inline int pm_runtime_put_sync_suspend(struct device *dev)  in pm_runtime_put_sync_suspend()  argument
466 	return __pm_runtime_suspend(dev, RPM_GET_PUT);  in pm_runtime_put_sync_suspend()
471  * @dev: Target device.
473  * Decrement the runtime PM usage counter of @dev and if it turns out to be
474  * equal to 0, set up autosuspend of @dev or suspend it synchronously (depending
478  * pm_runtime_autosuspend() and the runtime PM usage counter of @dev remains
481 static inline int pm_runtime_put_sync_autosuspend(struct device *dev)  in pm_runtime_put_sync_autosuspend()  argument
483 	return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);  in pm_runtime_put_sync_autosuspend()
488  * @dev: Target device.
490  * Set the runtime PM status of @dev to %RPM_ACTIVE and ensure that dependencies
495 static inline int pm_runtime_set_active(struct device *dev)  in pm_runtime_set_active()  argument
497 	return __pm_runtime_set_status(dev, RPM_ACTIVE);  in pm_runtime_set_active()
502  * @dev: Target device.
504  * Set the runtime PM status of @dev to %RPM_SUSPENDED and ensure that
509 static inline int pm_runtime_set_suspended(struct device *dev)  in pm_runtime_set_suspended()  argument
511 	return __pm_runtime_set_status(dev, RPM_SUSPENDED);  in pm_runtime_set_suspended()
516  * @dev: Target device.
518  * Prevent the runtime PM framework from working with @dev (by incrementing its
521  * For each invocation of this function for @dev there must be a matching
524 static inline void pm_runtime_disable(struct device *dev)  in pm_runtime_disable()  argument
526 	__pm_runtime_disable(dev, true);  in pm_runtime_disable()
531  * @dev: Target device.
533  * Allow the runtime PM autosuspend mechanism to be used for @dev whenever
537 static inline void pm_runtime_use_autosuspend(struct device *dev)  in pm_runtime_use_autosuspend()  argument
539 	__pm_runtime_use_autosuspend(dev, true);  in pm_runtime_use_autosuspend()
544  * @dev: Target device.
546  * Prevent the runtime PM autosuspend mechanism from being used for @dev which
550 static inline void pm_runtime_dont_use_autosuspend(struct device *dev)  in pm_runtime_dont_use_autosuspend()  argument
552 	__pm_runtime_use_autosuspend(dev, false);  in pm_runtime_dont_use_autosuspend()