power.h 3.8 KB
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#include <linux/pm_qos.h>

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static inline void device_pm_init_common(struct device *dev)
{
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	if (!dev->power.early_init) {
		spin_lock_init(&dev->power.lock);
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		dev->power.qos = NULL;
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		dev->power.early_init = true;
	}
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}

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#ifdef CONFIG_PM
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static inline void pm_runtime_early_init(struct device *dev)
{
	dev->power.disable_depth = 1;
	device_pm_init_common(dev);
}

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extern void pm_runtime_init(struct device *dev);
extern void pm_runtime_remove(struct device *dev);

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struct wake_irq {
	struct device *dev;
	int irq;
	bool dedicated_irq:1;
};

extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);

#ifdef CONFIG_PM_SLEEP

extern int device_wakeup_attach_irq(struct device *dev,
				    struct wake_irq *wakeirq);
extern void device_wakeup_detach_irq(struct device *dev);
extern void device_wakeup_arm_wake_irqs(void);
extern void device_wakeup_disarm_wake_irqs(void);

#else

static inline int
device_wakeup_attach_irq(struct device *dev,
			 struct wake_irq *wakeirq)
{
	return 0;
}

static inline void device_wakeup_detach_irq(struct device *dev)
{
}

static inline void device_wakeup_arm_wake_irqs(void)
{
}

static inline void device_wakeup_disarm_wake_irqs(void)
{
}

#endif /* CONFIG_PM_SLEEP */

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/*
 * sysfs.c
 */

extern int dpm_sysfs_add(struct device *dev);
extern void dpm_sysfs_remove(struct device *dev);
extern void rpm_sysfs_remove(struct device *dev);
extern int wakeup_sysfs_add(struct device *dev);
extern void wakeup_sysfs_remove(struct device *dev);
extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
extern int pm_qos_sysfs_add_flags(struct device *dev);
extern void pm_qos_sysfs_remove_flags(struct device *dev);

#else /* CONFIG_PM */
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static inline void pm_runtime_early_init(struct device *dev)
{
	device_pm_init_common(dev);
}

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static inline void pm_runtime_init(struct device *dev) {}
static inline void pm_runtime_remove(struct device *dev) {}

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static inline int dpm_sysfs_add(struct device *dev) { return 0; }
static inline void dpm_sysfs_remove(struct device *dev) {}
static inline void rpm_sysfs_remove(struct device *dev) {}
static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
static inline void wakeup_sysfs_remove(struct device *dev) {}
static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
static inline void pm_qos_sysfs_remove(struct device *dev) {}

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static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq)
{
}

static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
{
}

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#endif
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#ifdef CONFIG_PM_SLEEP
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/* kernel/power/main.c */
extern int pm_async_enabled;
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/* drivers/base/power/main.c */
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extern struct list_head dpm_list;	/* The active device list */
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static inline struct device *to_device(struct list_head *entry)
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{
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	return container_of(entry, struct device, power.entry);
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}

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extern void device_pm_sleep_init(struct device *dev);
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extern void device_pm_add(struct device *);
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extern void device_pm_remove(struct device *);
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extern void device_pm_move_before(struct device *, struct device *);
extern void device_pm_move_after(struct device *, struct device *);
extern void device_pm_move_last(struct device *);
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#else /* !CONFIG_PM_SLEEP */

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static inline void device_pm_sleep_init(struct device *dev) {}
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static inline void device_pm_add(struct device *dev) {}
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static inline void device_pm_remove(struct device *dev)
{
	pm_runtime_remove(dev);
}
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static inline void device_pm_move_before(struct device *deva,
					 struct device *devb) {}
static inline void device_pm_move_after(struct device *deva,
					struct device *devb) {}
static inline void device_pm_move_last(struct device *dev) {}
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#endif /* !CONFIG_PM_SLEEP */
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static inline void device_pm_init(struct device *dev)
{
	device_pm_init_common(dev);
	device_pm_sleep_init(dev);
	pm_runtime_init(dev);
}