mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
e26a99dd15
Commit 76e267d822 ("PM / Runtime: Remove device fields related to
suspend time, v2") left behind this.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
600 lines
20 KiB
C
600 lines
20 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* pm_runtime.h - Device run-time power management helper functions.
|
|
*
|
|
* Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>
|
|
*/
|
|
|
|
#ifndef _LINUX_PM_RUNTIME_H
|
|
#define _LINUX_PM_RUNTIME_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/pm.h>
|
|
|
|
#include <linux/jiffies.h>
|
|
|
|
/* Runtime PM flag argument bits */
|
|
#define RPM_ASYNC 0x01 /* Request is asynchronous */
|
|
#define RPM_NOWAIT 0x02 /* Don't wait for concurrent
|
|
state change */
|
|
#define RPM_GET_PUT 0x04 /* Increment/decrement the
|
|
usage_count */
|
|
#define RPM_AUTO 0x08 /* Use autosuspend_delay */
|
|
|
|
/*
|
|
* Use this for defining a set of PM operations to be used in all situations
|
|
* (system suspend, hibernation or runtime PM).
|
|
*
|
|
* Note that the behaviour differs from the deprecated UNIVERSAL_DEV_PM_OPS()
|
|
* macro, which uses the provided callbacks for both runtime PM and system
|
|
* sleep, while DEFINE_RUNTIME_DEV_PM_OPS() uses pm_runtime_force_suspend()
|
|
* and pm_runtime_force_resume() for its system sleep callbacks.
|
|
*
|
|
* If the underlying dev_pm_ops struct symbol has to be exported, use
|
|
* EXPORT_RUNTIME_DEV_PM_OPS() or EXPORT_GPL_RUNTIME_DEV_PM_OPS() instead.
|
|
*/
|
|
#define DEFINE_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
|
|
_DEFINE_DEV_PM_OPS(name, pm_runtime_force_suspend, \
|
|
pm_runtime_force_resume, suspend_fn, \
|
|
resume_fn, idle_fn)
|
|
|
|
#define EXPORT_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
|
|
EXPORT_DEV_PM_OPS(name) = { \
|
|
RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
|
|
}
|
|
#define EXPORT_GPL_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
|
|
EXPORT_GPL_DEV_PM_OPS(name) = { \
|
|
RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
|
|
}
|
|
#define EXPORT_NS_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn, ns) \
|
|
EXPORT_NS_DEV_PM_OPS(name, ns) = { \
|
|
RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
|
|
}
|
|
#define EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn, ns) \
|
|
EXPORT_NS_GPL_DEV_PM_OPS(name, ns) = { \
|
|
RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
extern struct workqueue_struct *pm_wq;
|
|
|
|
static inline bool queue_pm_work(struct work_struct *work)
|
|
{
|
|
return queue_work(pm_wq, work);
|
|
}
|
|
|
|
extern int pm_generic_runtime_suspend(struct device *dev);
|
|
extern int pm_generic_runtime_resume(struct device *dev);
|
|
extern int pm_runtime_force_suspend(struct device *dev);
|
|
extern int pm_runtime_force_resume(struct device *dev);
|
|
|
|
extern int __pm_runtime_idle(struct device *dev, int rpmflags);
|
|
extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
|
|
extern int __pm_runtime_resume(struct device *dev, int rpmflags);
|
|
extern int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count);
|
|
extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
|
|
extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
|
|
extern int pm_runtime_barrier(struct device *dev);
|
|
extern void pm_runtime_enable(struct device *dev);
|
|
extern void __pm_runtime_disable(struct device *dev, bool check_resume);
|
|
extern void pm_runtime_allow(struct device *dev);
|
|
extern void pm_runtime_forbid(struct device *dev);
|
|
extern void pm_runtime_no_callbacks(struct device *dev);
|
|
extern void pm_runtime_irq_safe(struct device *dev);
|
|
extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
|
|
extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
|
|
extern u64 pm_runtime_autosuspend_expiration(struct device *dev);
|
|
extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
|
|
extern void pm_runtime_get_suppliers(struct device *dev);
|
|
extern void pm_runtime_put_suppliers(struct device *dev);
|
|
extern void pm_runtime_new_link(struct device *dev);
|
|
extern void pm_runtime_drop_link(struct device_link *link);
|
|
extern void pm_runtime_release_supplier(struct device_link *link);
|
|
|
|
extern int devm_pm_runtime_enable(struct device *dev);
|
|
|
|
/**
|
|
* pm_runtime_get_if_in_use - Conditionally bump up runtime PM usage counter.
|
|
* @dev: Target device.
|
|
*
|
|
* Increment the runtime PM usage counter of @dev if its runtime PM status is
|
|
* %RPM_ACTIVE and its runtime PM usage counter is greater than 0.
|
|
*/
|
|
static inline int pm_runtime_get_if_in_use(struct device *dev)
|
|
{
|
|
return pm_runtime_get_if_active(dev, false);
|
|
}
|
|
|
|
/**
|
|
* pm_suspend_ignore_children - Set runtime PM behavior regarding children.
|
|
* @dev: Target device.
|
|
* @enable: Whether or not to ignore possible dependencies on children.
|
|
*
|
|
* The dependencies of @dev on its children will not be taken into account by
|
|
* the runtime PM framework going forward if @enable is %true, or they will
|
|
* be taken into account otherwise.
|
|
*/
|
|
static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
|
|
{
|
|
dev->power.ignore_children = enable;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_get_noresume - Bump up runtime PM usage counter of a device.
|
|
* @dev: Target device.
|
|
*/
|
|
static inline void pm_runtime_get_noresume(struct device *dev)
|
|
{
|
|
atomic_inc(&dev->power.usage_count);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put_noidle - Drop runtime PM usage counter of a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev unless it is 0 already.
|
|
*/
|
|
static inline void pm_runtime_put_noidle(struct device *dev)
|
|
{
|
|
atomic_add_unless(&dev->power.usage_count, -1, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_suspended - Check whether or not a device is runtime-suspended.
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if runtime PM is enabled for @dev and its runtime PM status is
|
|
* %RPM_SUSPENDED, or %false otherwise.
|
|
*
|
|
* Note that the return value of this function can only be trusted if it is
|
|
* called under the runtime PM lock of @dev or under conditions in which
|
|
* runtime PM cannot be either disabled or enabled for @dev and its runtime PM
|
|
* status cannot change.
|
|
*/
|
|
static inline bool pm_runtime_suspended(struct device *dev)
|
|
{
|
|
return dev->power.runtime_status == RPM_SUSPENDED
|
|
&& !dev->power.disable_depth;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_active - Check whether or not a device is runtime-active.
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if runtime PM is disabled for @dev or its runtime PM status is
|
|
* %RPM_ACTIVE, or %false otherwise.
|
|
*
|
|
* Note that the return value of this function can only be trusted if it is
|
|
* called under the runtime PM lock of @dev or under conditions in which
|
|
* runtime PM cannot be either disabled or enabled for @dev and its runtime PM
|
|
* status cannot change.
|
|
*/
|
|
static inline bool pm_runtime_active(struct device *dev)
|
|
{
|
|
return dev->power.runtime_status == RPM_ACTIVE
|
|
|| dev->power.disable_depth;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_status_suspended - Check if runtime PM status is "suspended".
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if the runtime PM status of @dev is %RPM_SUSPENDED, or %false
|
|
* otherwise, regardless of whether or not runtime PM has been enabled for @dev.
|
|
*
|
|
* Note that the return value of this function can only be trusted if it is
|
|
* called under the runtime PM lock of @dev or under conditions in which the
|
|
* runtime PM status of @dev cannot change.
|
|
*/
|
|
static inline bool pm_runtime_status_suspended(struct device *dev)
|
|
{
|
|
return dev->power.runtime_status == RPM_SUSPENDED;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_enabled - Check if runtime PM is enabled.
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if runtime PM is enabled for @dev or %false otherwise.
|
|
*
|
|
* Note that the return value of this function can only be trusted if it is
|
|
* called under the runtime PM lock of @dev or under conditions in which
|
|
* runtime PM cannot be either disabled or enabled for @dev.
|
|
*/
|
|
static inline bool pm_runtime_enabled(struct device *dev)
|
|
{
|
|
return !dev->power.disable_depth;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_has_no_callbacks - Check if runtime PM callbacks may be present.
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if @dev is a special device without runtime PM callbacks or
|
|
* %false otherwise.
|
|
*/
|
|
static inline bool pm_runtime_has_no_callbacks(struct device *dev)
|
|
{
|
|
return dev->power.no_callbacks;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_mark_last_busy - Update the last access time of a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Update the last access time of @dev used by the runtime PM autosuspend
|
|
* mechanism to the current time as returned by ktime_get_mono_fast_ns().
|
|
*/
|
|
static inline void pm_runtime_mark_last_busy(struct device *dev)
|
|
{
|
|
WRITE_ONCE(dev->power.last_busy, ktime_get_mono_fast_ns());
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_is_irq_safe - Check if runtime PM can work in interrupt context.
|
|
* @dev: Target device.
|
|
*
|
|
* Return %true if @dev has been marked as an "IRQ-safe" device (with respect
|
|
* to runtime PM), in which case its runtime PM callabcks can be expected to
|
|
* work correctly when invoked from interrupt handlers.
|
|
*/
|
|
static inline bool pm_runtime_is_irq_safe(struct device *dev)
|
|
{
|
|
return dev->power.irq_safe;
|
|
}
|
|
|
|
extern u64 pm_runtime_suspended_time(struct device *dev);
|
|
|
|
#else /* !CONFIG_PM */
|
|
|
|
static inline bool queue_pm_work(struct work_struct *work) { return false; }
|
|
|
|
static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
|
|
static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
|
|
static inline int pm_runtime_force_suspend(struct device *dev) { return 0; }
|
|
static inline int pm_runtime_force_resume(struct device *dev) { return 0; }
|
|
|
|
static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline int __pm_runtime_resume(struct device *dev, int rpmflags)
|
|
{
|
|
return 1;
|
|
}
|
|
static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline int pm_runtime_get_if_in_use(struct device *dev)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int pm_runtime_get_if_active(struct device *dev,
|
|
bool ign_usage_count)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int __pm_runtime_set_status(struct device *dev,
|
|
unsigned int status) { return 0; }
|
|
static inline int pm_runtime_barrier(struct device *dev) { return 0; }
|
|
static inline void pm_runtime_enable(struct device *dev) {}
|
|
static inline void __pm_runtime_disable(struct device *dev, bool c) {}
|
|
static inline void pm_runtime_allow(struct device *dev) {}
|
|
static inline void pm_runtime_forbid(struct device *dev) {}
|
|
|
|
static inline int devm_pm_runtime_enable(struct device *dev) { return 0; }
|
|
|
|
static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {}
|
|
static inline void pm_runtime_get_noresume(struct device *dev) {}
|
|
static inline void pm_runtime_put_noidle(struct device *dev) {}
|
|
static inline bool pm_runtime_suspended(struct device *dev) { return false; }
|
|
static inline bool pm_runtime_active(struct device *dev) { return true; }
|
|
static inline bool pm_runtime_status_suspended(struct device *dev) { return false; }
|
|
static inline bool pm_runtime_enabled(struct device *dev) { return false; }
|
|
|
|
static inline void pm_runtime_no_callbacks(struct device *dev) {}
|
|
static inline void pm_runtime_irq_safe(struct device *dev) {}
|
|
static inline bool pm_runtime_is_irq_safe(struct device *dev) { return false; }
|
|
|
|
static inline bool pm_runtime_has_no_callbacks(struct device *dev) { return false; }
|
|
static inline void pm_runtime_mark_last_busy(struct device *dev) {}
|
|
static inline void __pm_runtime_use_autosuspend(struct device *dev,
|
|
bool use) {}
|
|
static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
|
|
int delay) {}
|
|
static inline u64 pm_runtime_autosuspend_expiration(
|
|
struct device *dev) { return 0; }
|
|
static inline void pm_runtime_set_memalloc_noio(struct device *dev,
|
|
bool enable){}
|
|
static inline void pm_runtime_get_suppliers(struct device *dev) {}
|
|
static inline void pm_runtime_put_suppliers(struct device *dev) {}
|
|
static inline void pm_runtime_new_link(struct device *dev) {}
|
|
static inline void pm_runtime_drop_link(struct device_link *link) {}
|
|
static inline void pm_runtime_release_supplier(struct device_link *link) {}
|
|
|
|
#endif /* !CONFIG_PM */
|
|
|
|
/**
|
|
* pm_runtime_idle - Conditionally set up autosuspend of a device or suspend it.
|
|
* @dev: Target device.
|
|
*
|
|
* Invoke the "idle check" callback of @dev and, depending on its return value,
|
|
* set up autosuspend of @dev or suspend it (depending on whether or not
|
|
* autosuspend has been enabled for it).
|
|
*/
|
|
static inline int pm_runtime_idle(struct device *dev)
|
|
{
|
|
return __pm_runtime_idle(dev, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_suspend - Suspend a device synchronously.
|
|
* @dev: Target device.
|
|
*/
|
|
static inline int pm_runtime_suspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_autosuspend - Set up autosuspend of a device or suspend it.
|
|
* @dev: Target device.
|
|
*
|
|
* Set up autosuspend of @dev or suspend it (depending on whether or not
|
|
* autosuspend is enabled for it) without engaging its "idle check" callback.
|
|
*/
|
|
static inline int pm_runtime_autosuspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev, RPM_AUTO);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_resume - Resume a device synchronously.
|
|
* @dev: Target device.
|
|
*/
|
|
static inline int pm_runtime_resume(struct device *dev)
|
|
{
|
|
return __pm_runtime_resume(dev, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_request_idle - Queue up "idle check" execution for a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Queue up a work item to run an equivalent of pm_runtime_idle() for @dev
|
|
* asynchronously.
|
|
*/
|
|
static inline int pm_request_idle(struct device *dev)
|
|
{
|
|
return __pm_runtime_idle(dev, RPM_ASYNC);
|
|
}
|
|
|
|
/**
|
|
* pm_request_resume - Queue up runtime-resume of a device.
|
|
* @dev: Target device.
|
|
*/
|
|
static inline int pm_request_resume(struct device *dev)
|
|
{
|
|
return __pm_runtime_resume(dev, RPM_ASYNC);
|
|
}
|
|
|
|
/**
|
|
* pm_request_autosuspend - Queue up autosuspend of a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Queue up a work item to run an equivalent pm_runtime_autosuspend() for @dev
|
|
* asynchronously.
|
|
*/
|
|
static inline int pm_request_autosuspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_get - Bump up usage counter and queue up resume of a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Bump up the runtime PM usage counter of @dev and queue up a work item to
|
|
* carry out runtime-resume of it.
|
|
*/
|
|
static inline int pm_runtime_get(struct device *dev)
|
|
{
|
|
return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_get_sync - Bump up usage counter of a device and resume it.
|
|
* @dev: Target device.
|
|
*
|
|
* Bump up the runtime PM usage counter of @dev and carry out runtime-resume of
|
|
* it synchronously.
|
|
*
|
|
* The possible return values of this function are the same as for
|
|
* pm_runtime_resume() and the runtime PM usage counter of @dev remains
|
|
* incremented in all cases, even if it returns an error code.
|
|
* Consider using pm_runtime_resume_and_get() instead of it, especially
|
|
* if its return value is checked by the caller, as this is likely to result
|
|
* in cleaner code.
|
|
*/
|
|
static inline int pm_runtime_get_sync(struct device *dev)
|
|
{
|
|
return __pm_runtime_resume(dev, RPM_GET_PUT);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_resume_and_get - Bump up usage counter of a device and resume it.
|
|
* @dev: Target device.
|
|
*
|
|
* Resume @dev synchronously and if that is successful, increment its runtime
|
|
* PM usage counter. Return 0 if the runtime PM usage counter of @dev has been
|
|
* incremented or a negative error code otherwise.
|
|
*/
|
|
static inline int pm_runtime_resume_and_get(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = __pm_runtime_resume(dev, RPM_GET_PUT);
|
|
if (ret < 0) {
|
|
pm_runtime_put_noidle(dev);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put - Drop device usage counter and queue up "idle check" if 0.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev and if it turns out to be
|
|
* equal to 0, queue up a work item for @dev like in pm_request_idle().
|
|
*/
|
|
static inline int pm_runtime_put(struct device *dev)
|
|
{
|
|
return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put_autosuspend - Drop device usage counter and queue autosuspend if 0.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev and if it turns out to be
|
|
* equal to 0, queue up a work item for @dev like in pm_request_autosuspend().
|
|
*/
|
|
static inline int pm_runtime_put_autosuspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev,
|
|
RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put_sync - Drop device usage counter and run "idle check" if 0.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev and if it turns out to be
|
|
* equal to 0, invoke the "idle check" callback of @dev and, depending on its
|
|
* return value, set up autosuspend of @dev or suspend it (depending on whether
|
|
* or not autosuspend has been enabled for it).
|
|
*
|
|
* The possible return values of this function are the same as for
|
|
* pm_runtime_idle() and the runtime PM usage counter of @dev remains
|
|
* decremented in all cases, even if it returns an error code.
|
|
*/
|
|
static inline int pm_runtime_put_sync(struct device *dev)
|
|
{
|
|
return __pm_runtime_idle(dev, RPM_GET_PUT);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put_sync_suspend - Drop device usage counter and suspend if 0.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev and if it turns out to be
|
|
* equal to 0, carry out runtime-suspend of @dev synchronously.
|
|
*
|
|
* The possible return values of this function are the same as for
|
|
* pm_runtime_suspend() and the runtime PM usage counter of @dev remains
|
|
* decremented in all cases, even if it returns an error code.
|
|
*/
|
|
static inline int pm_runtime_put_sync_suspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev, RPM_GET_PUT);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_put_sync_autosuspend - Drop device usage counter and autosuspend if 0.
|
|
* @dev: Target device.
|
|
*
|
|
* Decrement the runtime PM usage counter of @dev and if it turns out to be
|
|
* equal to 0, set up autosuspend of @dev or suspend it synchronously (depending
|
|
* on whether or not autosuspend has been enabled for it).
|
|
*
|
|
* The possible return values of this function are the same as for
|
|
* pm_runtime_autosuspend() and the runtime PM usage counter of @dev remains
|
|
* decremented in all cases, even if it returns an error code.
|
|
*/
|
|
static inline int pm_runtime_put_sync_autosuspend(struct device *dev)
|
|
{
|
|
return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_set_active - Set runtime PM status to "active".
|
|
* @dev: Target device.
|
|
*
|
|
* Set the runtime PM status of @dev to %RPM_ACTIVE and ensure that dependencies
|
|
* of it will be taken into account.
|
|
*
|
|
* It is not valid to call this function for devices with runtime PM enabled.
|
|
*/
|
|
static inline int pm_runtime_set_active(struct device *dev)
|
|
{
|
|
return __pm_runtime_set_status(dev, RPM_ACTIVE);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_set_suspended - Set runtime PM status to "suspended".
|
|
* @dev: Target device.
|
|
*
|
|
* Set the runtime PM status of @dev to %RPM_SUSPENDED and ensure that
|
|
* dependencies of it will be taken into account.
|
|
*
|
|
* It is not valid to call this function for devices with runtime PM enabled.
|
|
*/
|
|
static inline int pm_runtime_set_suspended(struct device *dev)
|
|
{
|
|
return __pm_runtime_set_status(dev, RPM_SUSPENDED);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_disable - Disable runtime PM for a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Prevent the runtime PM framework from working with @dev (by incrementing its
|
|
* "blocking" counter).
|
|
*
|
|
* For each invocation of this function for @dev there must be a matching
|
|
* pm_runtime_enable() call in order for runtime PM to be enabled for it.
|
|
*/
|
|
static inline void pm_runtime_disable(struct device *dev)
|
|
{
|
|
__pm_runtime_disable(dev, true);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_use_autosuspend - Allow autosuspend to be used for a device.
|
|
* @dev: Target device.
|
|
*
|
|
* Allow the runtime PM autosuspend mechanism to be used for @dev whenever
|
|
* requested (or "autosuspend" will be handled as direct runtime-suspend for
|
|
* it).
|
|
*
|
|
* NOTE: It's important to undo this with pm_runtime_dont_use_autosuspend()
|
|
* at driver exit time unless your driver initially enabled pm_runtime
|
|
* with devm_pm_runtime_enable() (which handles it for you).
|
|
*/
|
|
static inline void pm_runtime_use_autosuspend(struct device *dev)
|
|
{
|
|
__pm_runtime_use_autosuspend(dev, true);
|
|
}
|
|
|
|
/**
|
|
* pm_runtime_dont_use_autosuspend - Prevent autosuspend from being used.
|
|
* @dev: Target device.
|
|
*
|
|
* Prevent the runtime PM autosuspend mechanism from being used for @dev which
|
|
* means that "autosuspend" will be handled as direct runtime-suspend for it
|
|
* going forward.
|
|
*/
|
|
static inline void pm_runtime_dont_use_autosuspend(struct device *dev)
|
|
{
|
|
__pm_runtime_use_autosuspend(dev, false);
|
|
}
|
|
|
|
#endif
|