Lines Matching +full:pm +full:- +full:bus
1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/main.c - Where the driver meets power management.
10 * and add it to the list of power-controlled devices. sysfs entries for
18 #define pr_fmt(fmt) "PM: " fmt
24 #include <linux/pm.h>
26 #include <linux/pm-trace.h>
90 return "(unknown PM event)"; in pm_verb()
95 * device_pm_sleep_init - Initialize system suspend-related device fields.
100 dev->power.is_prepared = false; in device_pm_sleep_init()
101 dev->power.is_suspended = false; in device_pm_sleep_init()
102 dev->power.is_noirq_suspended = false; in device_pm_sleep_init()
103 dev->power.is_late_suspended = false; in device_pm_sleep_init()
104 init_completion(&dev->power.completion); in device_pm_sleep_init()
105 complete_all(&dev->power.completion); in device_pm_sleep_init()
106 dev->power.wakeup = NULL; in device_pm_sleep_init()
107 INIT_LIST_HEAD(&dev->power.entry); in device_pm_sleep_init()
111 * device_pm_lock - Lock the list of active devices used by the PM core.
119 * device_pm_unlock - Unlock the list of active devices used by the PM core.
127 * device_pm_add - Add a device to the PM core's list of active devices.
132 /* Skip PM setup/initialization. */ in device_pm_add()
137 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_add()
140 if (dev->parent && dev->parent->power.is_prepared) in device_pm_add()
142 dev_name(dev->parent)); in device_pm_add()
143 list_add_tail(&dev->power.entry, &dpm_list); in device_pm_add()
144 dev->power.in_dpm_list = true; in device_pm_add()
149 * device_pm_remove - Remove a device from the PM core's list of active devices.
158 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_remove()
159 complete_all(&dev->power.completion); in device_pm_remove()
161 list_del_init(&dev->power.entry); in device_pm_remove()
162 dev->power.in_dpm_list = false; in device_pm_remove()
170 * device_pm_move_before - Move device in the PM core's list of active devices.
177 deva->bus ? deva->bus->name : "No Bus", dev_name(deva), in device_pm_move_before()
178 devb->bus ? devb->bus->name : "No Bus", dev_name(devb)); in device_pm_move_before()
180 list_move_tail(&deva->power.entry, &devb->power.entry); in device_pm_move_before()
184 * device_pm_move_after - Move device in the PM core's list of active devices.
191 deva->bus ? deva->bus->name : "No Bus", dev_name(deva), in device_pm_move_after()
192 devb->bus ? devb->bus->name : "No Bus", dev_name(devb)); in device_pm_move_after()
194 list_move(&deva->power.entry, &devb->power.entry); in device_pm_move_after()
198 * device_pm_move_last - Move device to end of the PM core's list of devices.
204 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_move_last()
205 list_move_tail(&dev->power.entry, &dpm_list); in device_pm_move_last()
215 dev->parent ? dev_name(dev->parent) : "none"); in initcall_debug_start()
236 * dpm_wait - Wait for a PM operation to complete.
245 if (async || (pm_async_enabled && dev->power.async_suspend)) in dpm_wait()
246 wait_for_completion(&dev->power.completion); in dpm_wait()
274 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) in dpm_wait_for_suppliers()
275 if (READ_ONCE(link->status) != DL_STATE_DORMANT) in dpm_wait_for_suppliers()
276 dpm_wait(link->supplier, async); in dpm_wait_for_suppliers()
299 parent = get_device(dev->parent); in dpm_wait_for_superior()
331 list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node) in dpm_wait_for_consumers()
332 if (READ_ONCE(link->status) != DL_STATE_DORMANT) in dpm_wait_for_consumers()
333 dpm_wait(link->consumer, async); in dpm_wait_for_consumers()
345 * pm_op - Return the PM operation appropriate for given PM event.
346 * @ops: PM operations to choose from.
347 * @state: PM transition of the system being carried out.
354 return ops->suspend; in pm_op()
356 return ops->resume; in pm_op()
361 return ops->freeze; in pm_op()
363 return ops->poweroff; in pm_op()
366 return ops->thaw; in pm_op()
368 return ops->restore; in pm_op()
376 * pm_late_early_op - Return the PM operation appropriate for given PM event.
377 * @ops: PM operations to choose from.
378 * @state: PM transition of the system being carried out.
380 * Runtime PM is disabled for @dev while this function is being executed.
388 return ops->suspend_late; in pm_late_early_op()
390 return ops->resume_early; in pm_late_early_op()
395 return ops->freeze_late; in pm_late_early_op()
397 return ops->poweroff_late; in pm_late_early_op()
400 return ops->thaw_early; in pm_late_early_op()
402 return ops->restore_early; in pm_late_early_op()
410 * pm_noirq_op - Return the PM operation appropriate for given PM event.
411 * @ops: PM operations to choose from.
412 * @state: PM transition of the system being carried out.
422 return ops->suspend_noirq; in pm_noirq_op()
424 return ops->resume_noirq; in pm_noirq_op()
429 return ops->freeze_noirq; in pm_noirq_op()
431 return ops->poweroff_noirq; in pm_noirq_op()
434 return ops->thaw_noirq; in pm_noirq_op()
436 return ops->restore_noirq; in pm_noirq_op()
510 * dpm_watchdog_handler - Driver suspend / resume watchdog handler.
511 * @t: The timer that PM watchdog depends on.
515 * capture a crash-dump in pstore.
521 dev_emerg(wd->dev, "**** DPM device timeout ****\n"); in dpm_watchdog_handler()
522 show_stack(wd->tsk, NULL, KERN_EMERG); in dpm_watchdog_handler()
524 dev_driver_string(wd->dev), dev_name(wd->dev)); in dpm_watchdog_handler()
528 * dpm_watchdog_set - Enable pm watchdog for given device.
534 struct timer_list *timer = &wd->timer; in dpm_watchdog_set()
536 wd->dev = dev; in dpm_watchdog_set()
537 wd->tsk = current; in dpm_watchdog_set()
541 timer->expires = jiffies + HZ * CONFIG_DPM_WATCHDOG_TIMEOUT; in dpm_watchdog_set()
546 * dpm_watchdog_clear - Disable suspend/resume watchdog.
551 struct timer_list *timer = &wd->timer; in dpm_watchdog_clear()
562 /*------------------------- Resume routines -------------------------*/
565 * dev_pm_skip_resume - System-wide device resume optimization check.
569 * - %false if the transition under way is RESTORE.
570 * - Return value of dev_pm_skip_suspend() if the transition under way is THAW.
571 * - The logical negation of %power.must_resume otherwise (that is, when the
582 return !dev->power.must_resume; in dev_pm_skip_resume()
586 * __device_resume_noirq - Execute a "noirq resume" callback for given device.
588 * @state: PM transition of the system being carried out.
604 if (dev->power.syscore || dev->power.direct_complete) in __device_resume_noirq()
607 if (!dev->power.is_noirq_suspended) in __device_resume_noirq()
617 * this device later, it needs to appear as "suspended" to PM-runtime, in __device_resume_noirq()
620 * Otherwise, the device is going to be resumed, so set its PM-runtime in __device_resume_noirq()
629 if (dev->pm_domain) { in __device_resume_noirq()
631 callback = pm_noirq_op(&dev->pm_domain->ops, state); in __device_resume_noirq()
632 } else if (dev->type && dev->type->pm) { in __device_resume_noirq()
634 callback = pm_noirq_op(dev->type->pm, state); in __device_resume_noirq()
635 } else if (dev->class && dev->class->pm) { in __device_resume_noirq()
637 callback = pm_noirq_op(dev->class->pm, state); in __device_resume_noirq()
638 } else if (dev->bus && dev->bus->pm) { in __device_resume_noirq()
639 info = "noirq bus "; in __device_resume_noirq()
640 callback = pm_noirq_op(dev->bus->pm, state); in __device_resume_noirq()
648 if (dev->driver && dev->driver->pm) { in __device_resume_noirq()
650 callback = pm_noirq_op(dev->driver->pm, state); in __device_resume_noirq()
657 dev->power.is_noirq_suspended = false; in __device_resume_noirq()
660 complete_all(&dev->power.completion); in __device_resume_noirq()
673 return dev->power.async_suspend && pm_async_enabled in is_async()
679 reinit_completion(&dev->power.completion); in dpm_async_fn()
722 list_move_tail(&dev->power.entry, &dpm_late_early_list); in dpm_noirq_resume_devices()
739 * dpm_resume_noirq - Execute "noirq resume" callbacks for all devices.
740 * @state: PM transition of the system being carried out.
756 * __device_resume_early - Execute an "early resume" callback for given device.
758 * @state: PM transition of the system being carried out.
761 * Runtime PM is disabled for @dev while this function is being executed.
772 if (dev->power.syscore || dev->power.direct_complete) in __device_resume_early()
775 if (!dev->power.is_late_suspended) in __device_resume_early()
781 if (dev->pm_domain) { in __device_resume_early()
783 callback = pm_late_early_op(&dev->pm_domain->ops, state); in __device_resume_early()
784 } else if (dev->type && dev->type->pm) { in __device_resume_early()
786 callback = pm_late_early_op(dev->type->pm, state); in __device_resume_early()
787 } else if (dev->class && dev->class->pm) { in __device_resume_early()
789 callback = pm_late_early_op(dev->class->pm, state); in __device_resume_early()
790 } else if (dev->bus && dev->bus->pm) { in __device_resume_early()
791 info = "early bus "; in __device_resume_early()
792 callback = pm_late_early_op(dev->bus->pm, state); in __device_resume_early()
800 if (dev->driver && dev->driver->pm) { in __device_resume_early()
802 callback = pm_late_early_op(dev->driver->pm, state); in __device_resume_early()
809 dev->power.is_late_suspended = false; in __device_resume_early()
815 complete_all(&dev->power.completion); in __device_resume_early()
842 * dpm_resume_early - Execute "early resume" callbacks for all devices.
843 * @state: PM transition of the system being carried out.
857 list_move_tail(&dev->power.entry, &dpm_suspended_list); in dpm_resume_early()
874 * dpm_resume_start - Execute "noirq" and "early" device callbacks.
875 * @state: PM transition of the system being carried out.
885 * __device_resume - Execute "resume" callbacks for given device.
887 * @state: PM transition of the system being carried out.
900 if (dev->power.syscore) in __device_resume()
903 if (dev->power.direct_complete) { in __device_resume()
919 dev->power.is_prepared = false; in __device_resume()
921 if (!dev->power.is_suspended) in __device_resume()
924 if (dev->pm_domain) { in __device_resume()
926 callback = pm_op(&dev->pm_domain->ops, state); in __device_resume()
930 if (dev->type && dev->type->pm) { in __device_resume()
932 callback = pm_op(dev->type->pm, state); in __device_resume()
936 if (dev->class && dev->class->pm) { in __device_resume()
938 callback = pm_op(dev->class->pm, state); in __device_resume()
942 if (dev->bus) { in __device_resume()
943 if (dev->bus->pm) { in __device_resume()
944 info = "bus "; in __device_resume()
945 callback = pm_op(dev->bus->pm, state); in __device_resume()
946 } else if (dev->bus->resume) { in __device_resume()
947 info = "legacy bus "; in __device_resume()
948 callback = dev->bus->resume; in __device_resume()
954 if (!callback && dev->driver && dev->driver->pm) { in __device_resume()
956 callback = pm_op(dev->driver->pm, state); in __device_resume()
961 dev->power.is_suspended = false; in __device_resume()
968 complete_all(&dev->power.completion); in __device_resume()
997 * dpm_resume - Execute "resume" callbacks for non-sysdev devices.
998 * @state: PM transition of the system being carried out.
1026 if (!list_empty(&dev->power.entry)) in dpm_resume()
1027 list_move_tail(&dev->power.entry, &dpm_prepared_list); in dpm_resume()
1045 * device_complete - Complete a PM transition for given device.
1047 * @state: PM transition of the system being carried out.
1054 if (dev->power.syscore) in device_complete()
1059 if (dev->pm_domain) { in device_complete()
1061 callback = dev->pm_domain->ops.complete; in device_complete()
1062 } else if (dev->type && dev->type->pm) { in device_complete()
1064 callback = dev->type->pm->complete; in device_complete()
1065 } else if (dev->class && dev->class->pm) { in device_complete()
1067 callback = dev->class->pm->complete; in device_complete()
1068 } else if (dev->bus && dev->bus->pm) { in device_complete()
1069 info = "completing bus "; in device_complete()
1070 callback = dev->bus->pm->complete; in device_complete()
1073 if (!callback && dev->driver && dev->driver->pm) { in device_complete()
1075 callback = dev->driver->pm->complete; in device_complete()
1090 * dpm_complete - Complete a PM transition for all non-sysdev devices.
1091 * @state: PM transition of the system being carried out.
1093 * Execute the ->complete() callbacks for all devices whose PM status is not
1109 dev->power.is_prepared = false; in dpm_complete()
1110 list_move(&dev->power.entry, &list); in dpm_complete()
1125 /* Allow device probing and trigger re-probing of deferred devices */ in dpm_complete()
1131 * dpm_resume_end - Execute "resume" callbacks and complete system transition.
1132 * @state: PM transition of the system being carried out.
1134 * Execute "resume" callbacks for all devices and complete the PM transition of
1145 /*------------------------- Suspend routines -------------------------*/
1148 * resume_event - Return a "resume" message for given "suspend" sleep state.
1149 * @sleep_state: PM message representing a sleep state.
1151 * Return a PM message representing the resume event corresponding to given
1173 if (dev->parent) in dpm_superior_set_must_resume()
1174 dev->parent->power.must_resume = true; in dpm_superior_set_must_resume()
1178 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) in dpm_superior_set_must_resume()
1179 link->supplier->power.must_resume = true; in dpm_superior_set_must_resume()
1185 * __device_suspend_noirq - Execute a "noirq suspend" callback for given device.
1187 * @state: PM transition of the system being carried out.
1207 if (dev->power.syscore || dev->power.direct_complete) in __device_suspend_noirq()
1210 if (dev->pm_domain) { in __device_suspend_noirq()
1212 callback = pm_noirq_op(&dev->pm_domain->ops, state); in __device_suspend_noirq()
1213 } else if (dev->type && dev->type->pm) { in __device_suspend_noirq()
1215 callback = pm_noirq_op(dev->type->pm, state); in __device_suspend_noirq()
1216 } else if (dev->class && dev->class->pm) { in __device_suspend_noirq()
1218 callback = pm_noirq_op(dev->class->pm, state); in __device_suspend_noirq()
1219 } else if (dev->bus && dev->bus->pm) { in __device_suspend_noirq()
1220 info = "noirq bus "; in __device_suspend_noirq()
1221 callback = pm_noirq_op(dev->bus->pm, state); in __device_suspend_noirq()
1229 if (dev->driver && dev->driver->pm) { in __device_suspend_noirq()
1231 callback = pm_noirq_op(dev->driver->pm, state); in __device_suspend_noirq()
1242 dev->power.is_noirq_suspended = true; in __device_suspend_noirq()
1246 * system suspend (as indicated by their PM-runtime usage counters) in __device_suspend_noirq()
1250 if (atomic_read(&dev->power.usage_count) > 1 || in __device_suspend_noirq()
1252 dev->power.may_skip_resume)) in __device_suspend_noirq()
1253 dev->power.must_resume = true; in __device_suspend_noirq()
1255 if (dev->power.must_resume) in __device_suspend_noirq()
1259 complete_all(&dev->power.completion); in __device_suspend_noirq()
1309 } else if (!list_empty(&dev->power.entry)) { in dpm_noirq_suspend_devices()
1310 list_move(&dev->power.entry, &dpm_noirq_list); in dpm_noirq_suspend_devices()
1337 * dpm_suspend_noirq - Execute "noirq suspend" callbacks for all devices.
1338 * @state: PM transition of the system being carried out.
1341 * "noirq" suspend callbacks for all non-sysdev devices.
1361 struct device *parent = dev->parent; in dpm_propagate_wakeup_to_parent()
1366 spin_lock_irq(&parent->power.lock); in dpm_propagate_wakeup_to_parent()
1368 if (dev->power.wakeup_path && !parent->power.ignore_children) in dpm_propagate_wakeup_to_parent()
1369 parent->power.wakeup_path = true; in dpm_propagate_wakeup_to_parent()
1371 spin_unlock_irq(&parent->power.lock); in dpm_propagate_wakeup_to_parent()
1375 * __device_suspend_late - Execute a "late suspend" callback for given device.
1377 * @state: PM transition of the system being carried out.
1380 * Runtime PM is disabled for @dev while this function is being executed.
1399 async_error = -EBUSY; in __device_suspend_late()
1403 if (dev->power.syscore || dev->power.direct_complete) in __device_suspend_late()
1406 if (dev->pm_domain) { in __device_suspend_late()
1408 callback = pm_late_early_op(&dev->pm_domain->ops, state); in __device_suspend_late()
1409 } else if (dev->type && dev->type->pm) { in __device_suspend_late()
1411 callback = pm_late_early_op(dev->type->pm, state); in __device_suspend_late()
1412 } else if (dev->class && dev->class->pm) { in __device_suspend_late()
1414 callback = pm_late_early_op(dev->class->pm, state); in __device_suspend_late()
1415 } else if (dev->bus && dev->bus->pm) { in __device_suspend_late()
1416 info = "late bus "; in __device_suspend_late()
1417 callback = pm_late_early_op(dev->bus->pm, state); in __device_suspend_late()
1425 if (dev->driver && dev->driver->pm) { in __device_suspend_late()
1427 callback = pm_late_early_op(dev->driver->pm, state); in __device_suspend_late()
1439 dev->power.is_late_suspended = true; in __device_suspend_late()
1443 complete_all(&dev->power.completion); in __device_suspend_late()
1469 * dpm_suspend_late - Execute "late suspend" callbacks for all devices.
1470 * @state: PM transition of the system being carried out.
1493 if (!list_empty(&dev->power.entry)) in dpm_suspend_late()
1494 list_move(&dev->power.entry, &dpm_late_early_list); in dpm_suspend_late()
1525 * dpm_suspend_end - Execute "late" and "noirq" device suspend callbacks.
1526 * @state: PM transition of the system being carried out.
1548 * legacy_suspend - Execute a legacy (bus or class) suspend callback for device.
1550 * @state: PM transition of the system being carried out.
1578 if (dev->parent) { in dpm_clear_superiors_direct_complete()
1579 spin_lock_irq(&dev->parent->power.lock); in dpm_clear_superiors_direct_complete()
1580 dev->parent->power.direct_complete = false; in dpm_clear_superiors_direct_complete()
1581 spin_unlock_irq(&dev->parent->power.lock); in dpm_clear_superiors_direct_complete()
1586 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) { in dpm_clear_superiors_direct_complete()
1587 spin_lock_irq(&link->supplier->power.lock); in dpm_clear_superiors_direct_complete()
1588 link->supplier->power.direct_complete = false; in dpm_clear_superiors_direct_complete()
1589 spin_unlock_irq(&link->supplier->power.lock); in dpm_clear_superiors_direct_complete()
1596 * __device_suspend - Execute "suspend" callbacks for given device.
1598 * @state: PM transition of the system being carried out.
1614 dev->power.direct_complete = false; in __device_suspend()
1619 * Wait for possible runtime PM transitions of the device in progress in __device_suspend()
1621 * resume it before proceeding with invoking the system-wide suspend in __device_suspend()
1624 * If the system-wide suspend callbacks below change the configuration in __device_suspend()
1625 * of the device, they must disable runtime PM for it or otherwise in __device_suspend()
1626 * ensure that its runtime-resume callbacks will not be confused by that in __device_suspend()
1632 dev->power.direct_complete = false; in __device_suspend()
1633 async_error = -EBUSY; in __device_suspend()
1637 if (dev->power.syscore) in __device_suspend()
1641 if (device_may_wakeup(dev) || dev->power.wakeup_path) in __device_suspend()
1642 dev->power.direct_complete = false; in __device_suspend()
1644 if (dev->power.direct_complete) { in __device_suspend()
1648 pm_dev_dbg(dev, state, "direct-complete "); in __device_suspend()
1654 dev->power.direct_complete = false; in __device_suspend()
1657 dev->power.may_skip_resume = true; in __device_suspend()
1658 dev->power.must_resume = !dev_pm_test_driver_flags(dev, DPM_FLAG_MAY_SKIP_RESUME); in __device_suspend()
1663 if (dev->pm_domain) { in __device_suspend()
1665 callback = pm_op(&dev->pm_domain->ops, state); in __device_suspend()
1669 if (dev->type && dev->type->pm) { in __device_suspend()
1671 callback = pm_op(dev->type->pm, state); in __device_suspend()
1675 if (dev->class && dev->class->pm) { in __device_suspend()
1677 callback = pm_op(dev->class->pm, state); in __device_suspend()
1681 if (dev->bus) { in __device_suspend()
1682 if (dev->bus->pm) { in __device_suspend()
1683 info = "bus "; in __device_suspend()
1684 callback = pm_op(dev->bus->pm, state); in __device_suspend()
1685 } else if (dev->bus->suspend) { in __device_suspend()
1686 pm_dev_dbg(dev, state, "legacy bus "); in __device_suspend()
1687 error = legacy_suspend(dev, state, dev->bus->suspend, in __device_suspend()
1688 "legacy bus "); in __device_suspend()
1694 if (!callback && dev->driver && dev->driver->pm) { in __device_suspend()
1696 callback = pm_op(dev->driver->pm, state); in __device_suspend()
1703 dev->power.is_suspended = true; in __device_suspend()
1705 dev->power.wakeup_path = true; in __device_suspend()
1718 complete_all(&dev->power.completion); in __device_suspend()
1746 * dpm_suspend - Execute "suspend" callbacks for all non-sysdev devices.
1747 * @state: PM transition of the system being carried out.
1777 } else if (!list_empty(&dev->power.entry)) { in dpm_suspend()
1778 list_move(&dev->power.entry, &dpm_suspended_list); in dpm_suspend()
1804 * device_prepare - Prepare a device for system power transition.
1806 * @state: PM transition of the system being carried out.
1808 * Execute the ->prepare() callback(s) for given device. No new children of the
1824 if (dev->power.syscore) in device_prepare()
1829 dev->power.wakeup_path = false; in device_prepare()
1831 if (dev->power.no_pm_callbacks) in device_prepare()
1834 if (dev->pm_domain) in device_prepare()
1835 callback = dev->pm_domain->ops.prepare; in device_prepare()
1836 else if (dev->type && dev->type->pm) in device_prepare()
1837 callback = dev->type->pm->prepare; in device_prepare()
1838 else if (dev->class && dev->class->pm) in device_prepare()
1839 callback = dev->class->pm->prepare; in device_prepare()
1840 else if (dev->bus && dev->bus->pm) in device_prepare()
1841 callback = dev->bus->pm->prepare; in device_prepare()
1843 if (!callback && dev->driver && dev->driver->pm) in device_prepare()
1844 callback = dev->driver->pm->prepare; in device_prepare()
1858 * A positive return value from ->prepare() means "this device appears in device_prepare()
1859 * to be runtime-suspended and its state is fine, so if it really is in device_prepare()
1860 * runtime-suspended, you can leave it in that state provided that you in device_prepare()
1864 spin_lock_irq(&dev->power.lock); in device_prepare()
1865 dev->power.direct_complete = state.event == PM_EVENT_SUSPEND && in device_prepare()
1866 (ret > 0 || dev->power.no_pm_callbacks) && in device_prepare()
1868 spin_unlock_irq(&dev->power.lock); in device_prepare()
1873 * dpm_prepare - Prepare all non-sysdev devices for a system PM transition.
1874 * @state: PM transition of the system being carried out.
1876 * Execute the ->prepare() callback(s) for all devices.
1914 dev->power.is_prepared = true; in dpm_prepare()
1915 if (!list_empty(&dev->power.entry)) in dpm_prepare()
1916 list_move_tail(&dev->power.entry, &dpm_prepared_list); in dpm_prepare()
1917 } else if (error == -EAGAIN) { in dpm_prepare()
1936 * dpm_suspend_start - Prepare devices for PM transition and suspend them.
1937 * @state: PM transition of the system being carried out.
1939 * Prepare all non-sysdev devices for system PM transition and execute "suspend"
1966 * device_pm_wait_for_dev - Wait for suspend/resume of a device to complete.
1972 dpm_wait(dev, subordinate->power.async_suspend); in device_pm_wait_for_dev()
1978 * dpm_for_each_dev - device iterator.
2004 return !ops->prepare && in pm_ops_is_empty()
2005 !ops->suspend && in pm_ops_is_empty()
2006 !ops->suspend_late && in pm_ops_is_empty()
2007 !ops->suspend_noirq && in pm_ops_is_empty()
2008 !ops->resume_noirq && in pm_ops_is_empty()
2009 !ops->resume_early && in pm_ops_is_empty()
2010 !ops->resume && in pm_ops_is_empty()
2011 !ops->complete; in pm_ops_is_empty()
2018 spin_lock_irqsave(&dev->power.lock, flags); in device_pm_check_callbacks()
2019 dev->power.no_pm_callbacks = in device_pm_check_callbacks()
2020 (!dev->bus || (pm_ops_is_empty(dev->bus->pm) && in device_pm_check_callbacks()
2021 !dev->bus->suspend && !dev->bus->resume)) && in device_pm_check_callbacks()
2022 (!dev->class || pm_ops_is_empty(dev->class->pm)) && in device_pm_check_callbacks()
2023 (!dev->type || pm_ops_is_empty(dev->type->pm)) && in device_pm_check_callbacks()
2024 (!dev->pm_domain || pm_ops_is_empty(&dev->pm_domain->ops)) && in device_pm_check_callbacks()
2025 (!dev->driver || (pm_ops_is_empty(dev->driver->pm) && in device_pm_check_callbacks()
2026 !dev->driver->suspend && !dev->driver->resume)); in device_pm_check_callbacks()
2027 spin_unlock_irqrestore(&dev->power.lock, flags); in device_pm_check_callbacks()