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
23 #include <linux/pm.h>
25 #include <linux/pm-trace.h>
89 return "(unknown PM event)"; in pm_verb()
94 * device_pm_sleep_init - Initialize system suspend-related device fields.
99 dev->power.is_prepared = false; in device_pm_sleep_init()
100 dev->power.is_suspended = false; in device_pm_sleep_init()
101 dev->power.is_noirq_suspended = false; in device_pm_sleep_init()
102 dev->power.is_late_suspended = false; in device_pm_sleep_init()
103 init_completion(&dev->power.completion); in device_pm_sleep_init()
104 complete_all(&dev->power.completion); in device_pm_sleep_init()
105 dev->power.wakeup = NULL; in device_pm_sleep_init()
106 INIT_LIST_HEAD(&dev->power.entry); in device_pm_sleep_init()
110 * device_pm_lock - Lock the list of active devices used by the PM core.
118 * device_pm_unlock - Unlock the list of active devices used by the PM core.
126 * device_pm_add - Add a device to the PM core's list of active devices.
131 /* Skip PM setup/initialization. */ in device_pm_add()
136 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_add()
139 if (dev->parent && dev->parent->power.is_prepared) in device_pm_add()
141 dev_name(dev->parent)); in device_pm_add()
142 list_add_tail(&dev->power.entry, &dpm_list); in device_pm_add()
143 dev->power.in_dpm_list = true; in device_pm_add()
148 * device_pm_remove - Remove a device from the PM core's list of active devices.
157 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_remove()
158 complete_all(&dev->power.completion); in device_pm_remove()
160 list_del_init(&dev->power.entry); in device_pm_remove()
161 dev->power.in_dpm_list = false; in device_pm_remove()
169 * device_pm_move_before - Move device in the PM core's list of active devices.
176 deva->bus ? deva->bus->name : "No Bus", dev_name(deva), in device_pm_move_before()
177 devb->bus ? devb->bus->name : "No Bus", dev_name(devb)); in device_pm_move_before()
179 list_move_tail(&deva->power.entry, &devb->power.entry); in device_pm_move_before()
183 * device_pm_move_after - Move device in the PM core's list of active devices.
190 deva->bus ? deva->bus->name : "No Bus", dev_name(deva), in device_pm_move_after()
191 devb->bus ? devb->bus->name : "No Bus", dev_name(devb)); in device_pm_move_after()
193 list_move(&deva->power.entry, &devb->power.entry); in device_pm_move_after()
197 * device_pm_move_last - Move device to end of the PM core's list of devices.
203 dev->bus ? dev->bus->name : "No Bus", dev_name(dev)); in device_pm_move_last()
204 list_move_tail(&dev->power.entry, &dpm_list); in device_pm_move_last()
214 dev->parent ? dev_name(dev->parent) : "none"); in initcall_debug_start()
235 * dpm_wait - Wait for a PM operation to complete.
244 if (async || (pm_async_enabled && dev->power.async_suspend)) in dpm_wait()
245 wait_for_completion(&dev->power.completion); in dpm_wait()
273 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) in dpm_wait_for_suppliers()
274 if (READ_ONCE(link->status) != DL_STATE_DORMANT) in dpm_wait_for_suppliers()
275 dpm_wait(link->supplier, async); in dpm_wait_for_suppliers()
298 parent = get_device(dev->parent); in dpm_wait_for_superior()
330 list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node) in dpm_wait_for_consumers()
331 if (READ_ONCE(link->status) != DL_STATE_DORMANT) in dpm_wait_for_consumers()
332 dpm_wait(link->consumer, async); in dpm_wait_for_consumers()
344 * pm_op - Return the PM operation appropriate for given PM event.
345 * @ops: PM operations to choose from.
346 * @state: PM transition of the system being carried out.
353 return ops->suspend; in pm_op()
355 return ops->resume; in pm_op()
360 return ops->freeze; in pm_op()
362 return ops->poweroff; in pm_op()
365 return ops->thaw; in pm_op()
367 return ops->restore; in pm_op()
375 * pm_late_early_op - Return the PM operation appropriate for given PM event.
376 * @ops: PM operations to choose from.
377 * @state: PM transition of the system being carried out.
379 * Runtime PM is disabled for @dev while this function is being executed.
387 return ops->suspend_late; in pm_late_early_op()
389 return ops->resume_early; in pm_late_early_op()
394 return ops->freeze_late; in pm_late_early_op()
396 return ops->poweroff_late; in pm_late_early_op()
399 return ops->thaw_early; in pm_late_early_op()
401 return ops->restore_early; in pm_late_early_op()
409 * pm_noirq_op - Return the PM operation appropriate for given PM event.
410 * @ops: PM operations to choose from.
411 * @state: PM transition of the system being carried out.
421 return ops->suspend_noirq; in pm_noirq_op()
423 return ops->resume_noirq; in pm_noirq_op()
428 return ops->freeze_noirq; in pm_noirq_op()
430 return ops->poweroff_noirq; in pm_noirq_op()
433 return ops->thaw_noirq; in pm_noirq_op()
435 return ops->restore_noirq; in pm_noirq_op()
509 * dpm_watchdog_handler - Driver suspend / resume watchdog handler.
510 * @t: The timer that PM watchdog depends on.
514 * capture a crash-dump in pstore.
520 dev_emerg(wd->dev, "**** DPM device timeout ****\n"); in dpm_watchdog_handler()
521 show_stack(wd->tsk, NULL, KERN_EMERG); in dpm_watchdog_handler()
523 dev_driver_string(wd->dev), dev_name(wd->dev)); in dpm_watchdog_handler()
527 * dpm_watchdog_set - Enable pm watchdog for given device.
533 struct timer_list *timer = &wd->timer; in dpm_watchdog_set()
535 wd->dev = dev; in dpm_watchdog_set()
536 wd->tsk = current; in dpm_watchdog_set()
540 timer->expires = jiffies + HZ * CONFIG_DPM_WATCHDOG_TIMEOUT; in dpm_watchdog_set()
545 * dpm_watchdog_clear - Disable suspend/resume watchdog.
550 struct timer_list *timer = &wd->timer; in dpm_watchdog_clear()
561 /*------------------------- Resume routines -------------------------*/
564 * dev_pm_skip_resume - System-wide device resume optimization check.
568 * - %false if the transition under way is RESTORE.
569 * - Return value of dev_pm_skip_suspend() if the transition under way is THAW.
570 * - The logical negation of %power.must_resume otherwise (that is, when the
581 return !dev->power.must_resume; in dev_pm_skip_resume()
585 * device_resume_noirq - Execute a "noirq resume" callback for given device.
587 * @state: PM transition of the system being carried out.
603 if (dev->power.syscore || dev->power.direct_complete) in device_resume_noirq()
606 if (!dev->power.is_noirq_suspended) in device_resume_noirq()
616 * this device later, it needs to appear as "suspended" to PM-runtime, in device_resume_noirq()
619 * Otherwise, the device is going to be resumed, so set its PM-runtime in device_resume_noirq()
628 if (dev->pm_domain) { in device_resume_noirq()
630 callback = pm_noirq_op(&dev->pm_domain->ops, state); in device_resume_noirq()
631 } else if (dev->type && dev->type->pm) { in device_resume_noirq()
633 callback = pm_noirq_op(dev->type->pm, state); in device_resume_noirq()
634 } else if (dev->class && dev->class->pm) { in device_resume_noirq()
636 callback = pm_noirq_op(dev->class->pm, state); in device_resume_noirq()
637 } else if (dev->bus && dev->bus->pm) { in device_resume_noirq()
638 info = "noirq bus "; in device_resume_noirq()
639 callback = pm_noirq_op(dev->bus->pm, state); in device_resume_noirq()
647 if (dev->driver && dev->driver->pm) { in device_resume_noirq()
649 callback = pm_noirq_op(dev->driver->pm, state); in device_resume_noirq()
656 dev->power.is_noirq_suspended = false; in device_resume_noirq()
659 complete_all(&dev->power.completion); in device_resume_noirq()
666 return dev->power.async_suspend && pm_async_enabled in is_async()
672 reinit_completion(&dev->power.completion); in dpm_async_fn()
707 * delayed by non-async resuming devices. in dpm_noirq_resume_devices()
715 list_move_tail(&dev->power.entry, &dpm_late_early_list); in dpm_noirq_resume_devices()
740 * dpm_resume_noirq - Execute "noirq resume" callbacks for all devices.
741 * @state: PM transition of the system being carried out.
757 * device_resume_early - Execute an "early resume" callback for given device.
759 * @state: PM transition of the system being carried out.
762 * Runtime PM is disabled for @dev while this function is being executed.
773 if (dev->power.syscore || dev->power.direct_complete) in device_resume_early()
776 if (!dev->power.is_late_suspended) in device_resume_early()
782 if (dev->pm_domain) { in device_resume_early()
784 callback = pm_late_early_op(&dev->pm_domain->ops, state); in device_resume_early()
785 } else if (dev->type && dev->type->pm) { in device_resume_early()
787 callback = pm_late_early_op(dev->type->pm, state); in device_resume_early()
788 } else if (dev->class && dev->class->pm) { in device_resume_early()
790 callback = pm_late_early_op(dev->class->pm, state); in device_resume_early()
791 } else if (dev->bus && dev->bus->pm) { in device_resume_early()
792 info = "early bus "; in device_resume_early()
793 callback = pm_late_early_op(dev->bus->pm, state); in device_resume_early()
801 if (dev->driver && dev->driver->pm) { in device_resume_early()
803 callback = pm_late_early_op(dev->driver->pm, state); in device_resume_early()
810 dev->power.is_late_suspended = false; in device_resume_early()
816 complete_all(&dev->power.completion); in device_resume_early()
833 * dpm_resume_early - Execute "early resume" callbacks for all devices.
834 * @state: PM transition of the system being carried out.
848 * delayed by non-async resuming devices. in dpm_resume_early()
856 list_move_tail(&dev->power.entry, &dpm_suspended_list); in dpm_resume_early()
880 * dpm_resume_start - Execute "noirq" and "early" device callbacks.
881 * @state: PM transition of the system being carried out.
891 * device_resume - Execute "resume" callbacks for given device.
893 * @state: PM transition of the system being carried out.
906 if (dev->power.syscore) in device_resume()
909 if (dev->power.direct_complete) { in device_resume()
925 dev->power.is_prepared = false; in device_resume()
927 if (!dev->power.is_suspended) in device_resume()
930 if (dev->pm_domain) { in device_resume()
932 callback = pm_op(&dev->pm_domain->ops, state); in device_resume()
936 if (dev->type && dev->type->pm) { in device_resume()
938 callback = pm_op(dev->type->pm, state); in device_resume()
942 if (dev->class && dev->class->pm) { in device_resume()
944 callback = pm_op(dev->class->pm, state); in device_resume()
948 if (dev->bus) { in device_resume()
949 if (dev->bus->pm) { in device_resume()
950 info = "bus "; in device_resume()
951 callback = pm_op(dev->bus->pm, state); in device_resume()
952 } else if (dev->bus->resume) { in device_resume()
953 info = "legacy bus "; in device_resume()
954 callback = dev->bus->resume; in device_resume()
960 if (!callback && dev->driver && dev->driver->pm) { in device_resume()
962 callback = pm_op(dev->driver->pm, state); in device_resume()
967 dev->power.is_suspended = false; in device_resume()
974 complete_all(&dev->power.completion); in device_resume()
993 * dpm_resume - Execute "resume" callbacks for non-sysdev devices.
994 * @state: PM transition of the system being carried out.
1032 if (!list_empty(&dev->power.entry)) in dpm_resume()
1033 list_move_tail(&dev->power.entry, &dpm_prepared_list); in dpm_resume()
1046 * device_complete - Complete a PM transition for given device.
1048 * @state: PM transition of the system being carried out.
1055 if (dev->power.syscore) in device_complete()
1060 if (dev->pm_domain) { in device_complete()
1062 callback = dev->pm_domain->ops.complete; in device_complete()
1063 } else if (dev->type && dev->type->pm) { in device_complete()
1065 callback = dev->type->pm->complete; in device_complete()
1066 } else if (dev->class && dev->class->pm) { in device_complete()
1068 callback = dev->class->pm->complete; in device_complete()
1069 } else if (dev->bus && dev->bus->pm) { in device_complete()
1070 info = "completing bus "; in device_complete()
1071 callback = dev->bus->pm->complete; in device_complete()
1074 if (!callback && dev->driver && dev->driver->pm) { in device_complete()
1076 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()
1123 /* Allow device probing and trigger re-probing of deferred devices */ in dpm_complete()
1129 * dpm_resume_end - Execute "resume" callbacks and complete system transition.
1130 * @state: PM transition of the system being carried out.
1132 * Execute "resume" callbacks for all devices and complete the PM transition of
1143 /*------------------------- Suspend routines -------------------------*/
1146 * resume_event - Return a "resume" message for given "suspend" sleep state.
1147 * @sleep_state: PM message representing a sleep state.
1149 * Return a PM message representing the resume event corresponding to given
1171 if (dev->parent) in dpm_superior_set_must_resume()
1172 dev->parent->power.must_resume = true; in dpm_superior_set_must_resume()
1176 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) in dpm_superior_set_must_resume()
1177 link->supplier->power.must_resume = true; in dpm_superior_set_must_resume()
1183 * __device_suspend_noirq - Execute a "noirq suspend" callback for given device.
1185 * @state: PM transition of the system being carried out.
1205 if (dev->power.syscore || dev->power.direct_complete) in __device_suspend_noirq()
1208 if (dev->pm_domain) { in __device_suspend_noirq()
1210 callback = pm_noirq_op(&dev->pm_domain->ops, state); in __device_suspend_noirq()
1211 } else if (dev->type && dev->type->pm) { in __device_suspend_noirq()
1213 callback = pm_noirq_op(dev->type->pm, state); in __device_suspend_noirq()
1214 } else if (dev->class && dev->class->pm) { in __device_suspend_noirq()
1216 callback = pm_noirq_op(dev->class->pm, state); in __device_suspend_noirq()
1217 } else if (dev->bus && dev->bus->pm) { in __device_suspend_noirq()
1218 info = "noirq bus "; in __device_suspend_noirq()
1219 callback = pm_noirq_op(dev->bus->pm, state); in __device_suspend_noirq()
1227 if (dev->driver && dev->driver->pm) { in __device_suspend_noirq()
1229 callback = pm_noirq_op(dev->driver->pm, state); in __device_suspend_noirq()
1240 dev->power.is_noirq_suspended = true; in __device_suspend_noirq()
1244 * system suspend (as indicated by their PM-runtime usage counters) in __device_suspend_noirq()
1248 if (atomic_read(&dev->power.usage_count) > 1 || in __device_suspend_noirq()
1250 dev->power.may_skip_resume)) in __device_suspend_noirq()
1251 dev->power.must_resume = true; in __device_suspend_noirq()
1253 if (dev->power.must_resume) in __device_suspend_noirq()
1257 complete_all(&dev->power.completion); in __device_suspend_noirq()
1309 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()
1331 * dpm_suspend_noirq - Execute "noirq suspend" callbacks for all devices.
1332 * @state: PM transition of the system being carried out.
1335 * "noirq" suspend callbacks for all non-sysdev devices.
1355 struct device *parent = dev->parent; in dpm_propagate_wakeup_to_parent()
1360 spin_lock_irq(&parent->power.lock); in dpm_propagate_wakeup_to_parent()
1362 if (dev->power.wakeup_path && !parent->power.ignore_children) in dpm_propagate_wakeup_to_parent()
1363 parent->power.wakeup_path = true; in dpm_propagate_wakeup_to_parent()
1365 spin_unlock_irq(&parent->power.lock); in dpm_propagate_wakeup_to_parent()
1369 * __device_suspend_late - Execute a "late suspend" callback for given device.
1371 * @state: PM transition of the system being carried out.
1374 * Runtime PM is disabled for @dev while this function is being executed.
1393 async_error = -EBUSY; in __device_suspend_late()
1397 if (dev->power.syscore || dev->power.direct_complete) in __device_suspend_late()
1400 if (dev->pm_domain) { in __device_suspend_late()
1402 callback = pm_late_early_op(&dev->pm_domain->ops, state); in __device_suspend_late()
1403 } else if (dev->type && dev->type->pm) { in __device_suspend_late()
1405 callback = pm_late_early_op(dev->type->pm, state); in __device_suspend_late()
1406 } else if (dev->class && dev->class->pm) { in __device_suspend_late()
1408 callback = pm_late_early_op(dev->class->pm, state); in __device_suspend_late()
1409 } else if (dev->bus && dev->bus->pm) { in __device_suspend_late()
1410 info = "late bus "; in __device_suspend_late()
1411 callback = pm_late_early_op(dev->bus->pm, state); in __device_suspend_late()
1419 if (dev->driver && dev->driver->pm) { in __device_suspend_late()
1421 callback = pm_late_early_op(dev->driver->pm, state); in __device_suspend_late()
1433 dev->power.is_late_suspended = true; in __device_suspend_late()
1437 complete_all(&dev->power.completion); in __device_suspend_late()
1463 * dpm_suspend_late - Execute "late suspend" callbacks for all devices.
1464 * @state: PM transition of the system being carried out.
1485 if (!list_empty(&dev->power.entry)) in dpm_suspend_late()
1486 list_move(&dev->power.entry, &dpm_late_early_list); in dpm_suspend_late()
1514 * dpm_suspend_end - Execute "late" and "noirq" device suspend callbacks.
1515 * @state: PM transition of the system being carried out.
1537 * legacy_suspend - Execute a legacy (bus or class) suspend callback for device.
1539 * @state: PM transition of the system being carried out.
1567 if (dev->parent) { in dpm_clear_superiors_direct_complete()
1568 spin_lock_irq(&dev->parent->power.lock); in dpm_clear_superiors_direct_complete()
1569 dev->parent->power.direct_complete = false; in dpm_clear_superiors_direct_complete()
1570 spin_unlock_irq(&dev->parent->power.lock); in dpm_clear_superiors_direct_complete()
1575 list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) { in dpm_clear_superiors_direct_complete()
1576 spin_lock_irq(&link->supplier->power.lock); in dpm_clear_superiors_direct_complete()
1577 link->supplier->power.direct_complete = false; in dpm_clear_superiors_direct_complete()
1578 spin_unlock_irq(&link->supplier->power.lock); in dpm_clear_superiors_direct_complete()
1585 * __device_suspend - Execute "suspend" callbacks for given device.
1587 * @state: PM transition of the system being carried out.
1603 dev->power.direct_complete = false; in __device_suspend()
1608 * Wait for possible runtime PM transitions of the device in progress in __device_suspend()
1610 * resume it before proceeding with invoking the system-wide suspend in __device_suspend()
1613 * If the system-wide suspend callbacks below change the configuration in __device_suspend()
1614 * of the device, they must disable runtime PM for it or otherwise in __device_suspend()
1615 * ensure that its runtime-resume callbacks will not be confused by that in __device_suspend()
1621 dev->power.direct_complete = false; in __device_suspend()
1622 async_error = -EBUSY; in __device_suspend()
1626 if (dev->power.syscore) in __device_suspend()
1630 if (device_may_wakeup(dev) || dev->power.wakeup_path) in __device_suspend()
1631 dev->power.direct_complete = false; in __device_suspend()
1633 if (dev->power.direct_complete) { in __device_suspend()
1637 pm_dev_dbg(dev, state, "direct-complete "); in __device_suspend()
1643 dev->power.direct_complete = false; in __device_suspend()
1646 dev->power.may_skip_resume = true; in __device_suspend()
1647 dev->power.must_resume = !dev_pm_test_driver_flags(dev, DPM_FLAG_MAY_SKIP_RESUME); in __device_suspend()
1652 if (dev->pm_domain) { in __device_suspend()
1654 callback = pm_op(&dev->pm_domain->ops, state); in __device_suspend()
1658 if (dev->type && dev->type->pm) { in __device_suspend()
1660 callback = pm_op(dev->type->pm, state); in __device_suspend()
1664 if (dev->class && dev->class->pm) { in __device_suspend()
1666 callback = pm_op(dev->class->pm, state); in __device_suspend()
1670 if (dev->bus) { in __device_suspend()
1671 if (dev->bus->pm) { in __device_suspend()
1672 info = "bus "; in __device_suspend()
1673 callback = pm_op(dev->bus->pm, state); in __device_suspend()
1674 } else if (dev->bus->suspend) { in __device_suspend()
1675 pm_dev_dbg(dev, state, "legacy bus "); in __device_suspend()
1676 error = legacy_suspend(dev, state, dev->bus->suspend, in __device_suspend()
1677 "legacy bus "); in __device_suspend()
1683 if (!callback && dev->driver && dev->driver->pm) { in __device_suspend()
1685 callback = pm_op(dev->driver->pm, state); in __device_suspend()
1692 dev->power.is_suspended = true; in __device_suspend()
1694 dev->power.wakeup_path = true; in __device_suspend()
1707 complete_all(&dev->power.completion); in __device_suspend()
1735 * dpm_suspend - Execute "suspend" callbacks for all non-sysdev devices.
1736 * @state: PM transition of the system being carried out.
1767 if (!list_empty(&dev->power.entry)) in dpm_suspend()
1768 list_move(&dev->power.entry, &dpm_suspended_list); in dpm_suspend()
1787 * device_prepare - Prepare a device for system power transition.
1789 * @state: PM transition of the system being carried out.
1791 * Execute the ->prepare() callback(s) for given device. No new children of the
1799 if (dev->power.syscore) in device_prepare()
1812 dev->power.wakeup_path = false; in device_prepare()
1814 if (dev->power.no_pm_callbacks) in device_prepare()
1817 if (dev->pm_domain) in device_prepare()
1818 callback = dev->pm_domain->ops.prepare; in device_prepare()
1819 else if (dev->type && dev->type->pm) in device_prepare()
1820 callback = dev->type->pm->prepare; in device_prepare()
1821 else if (dev->class && dev->class->pm) in device_prepare()
1822 callback = dev->class->pm->prepare; in device_prepare()
1823 else if (dev->bus && dev->bus->pm) in device_prepare()
1824 callback = dev->bus->pm->prepare; in device_prepare()
1826 if (!callback && dev->driver && dev->driver->pm) in device_prepare()
1827 callback = dev->driver->pm->prepare; in device_prepare()
1841 * A positive return value from ->prepare() means "this device appears in device_prepare()
1842 * to be runtime-suspended and its state is fine, so if it really is in device_prepare()
1843 * runtime-suspended, you can leave it in that state provided that you in device_prepare()
1847 spin_lock_irq(&dev->power.lock); in device_prepare()
1848 dev->power.direct_complete = state.event == PM_EVENT_SUSPEND && in device_prepare()
1849 (ret > 0 || dev->power.no_pm_callbacks) && in device_prepare()
1851 spin_unlock_irq(&dev->power.lock); in device_prepare()
1856 * dpm_prepare - Prepare all non-sysdev devices for a system PM transition.
1857 * @state: PM transition of the system being carried out.
1859 * Execute the ->prepare() callback(s) for all devices.
1895 if (error == -EAGAIN) { in dpm_prepare()
1905 dev->power.is_prepared = true; in dpm_prepare()
1906 if (!list_empty(&dev->power.entry)) in dpm_prepare()
1907 list_move_tail(&dev->power.entry, &dpm_prepared_list); in dpm_prepare()
1916 * dpm_suspend_start - Prepare devices for PM transition and suspend them.
1917 * @state: PM transition of the system being carried out.
1919 * Prepare all non-sysdev devices for system PM transition and execute "suspend"
1946 * device_pm_wait_for_dev - Wait for suspend/resume of a device to complete.
1952 dpm_wait(dev, subordinate->power.async_suspend); in device_pm_wait_for_dev()
1958 * dpm_for_each_dev - device iterator.
1984 return !ops->prepare && in pm_ops_is_empty()
1985 !ops->suspend && in pm_ops_is_empty()
1986 !ops->suspend_late && in pm_ops_is_empty()
1987 !ops->suspend_noirq && in pm_ops_is_empty()
1988 !ops->resume_noirq && in pm_ops_is_empty()
1989 !ops->resume_early && in pm_ops_is_empty()
1990 !ops->resume && in pm_ops_is_empty()
1991 !ops->complete; in pm_ops_is_empty()
1996 spin_lock_irq(&dev->power.lock); in device_pm_check_callbacks()
1997 dev->power.no_pm_callbacks = in device_pm_check_callbacks()
1998 (!dev->bus || (pm_ops_is_empty(dev->bus->pm) && in device_pm_check_callbacks()
1999 !dev->bus->suspend && !dev->bus->resume)) && in device_pm_check_callbacks()
2000 (!dev->class || pm_ops_is_empty(dev->class->pm)) && in device_pm_check_callbacks()
2001 (!dev->type || pm_ops_is_empty(dev->type->pm)) && in device_pm_check_callbacks()
2002 (!dev->pm_domain || pm_ops_is_empty(&dev->pm_domain->ops)) && in device_pm_check_callbacks()
2003 (!dev->driver || (pm_ops_is_empty(dev->driver->pm) && in device_pm_check_callbacks()
2004 !dev->driver->suspend && !dev->driver->resume)); in device_pm_check_callbacks()
2005 spin_unlock_irq(&dev->power.lock); in device_pm_check_callbacks()