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kernel/linux-imx6_3.14.28/drivers/base/power/power.h 2.96 KB
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  #include <linux/pm_qos.h>
  
  static inline void device_pm_init_common(struct device *dev)
  {
  	if (!dev->power.early_init) {
  		spin_lock_init(&dev->power.lock);
  		dev->power.qos = NULL;
  		dev->power.early_init = true;
  	}
  }
  
  #ifdef CONFIG_PM_RUNTIME
  
  static inline void pm_runtime_early_init(struct device *dev)
  {
  	dev->power.disable_depth = 1;
  	device_pm_init_common(dev);
  }
  
  extern void pm_runtime_init(struct device *dev);
  extern void pm_runtime_remove(struct device *dev);
  
  #else /* !CONFIG_PM_RUNTIME */
  
  static inline void pm_runtime_early_init(struct device *dev)
  {
  	device_pm_init_common(dev);
  }
  
  static inline void pm_runtime_init(struct device *dev) {}
  static inline void pm_runtime_remove(struct device *dev) {}
  
  #endif /* !CONFIG_PM_RUNTIME */
  
  #ifdef CONFIG_PM_SLEEP
  
  /* kernel/power/main.c */
  extern int pm_async_enabled;
  
  /* drivers/base/power/main.c */
  extern struct list_head dpm_list;	/* The active device list */
  
  static inline struct device *to_device(struct list_head *entry)
  {
  	return container_of(entry, struct device, power.entry);
  }
  
  extern void device_pm_sleep_init(struct device *dev);
  extern void device_pm_add(struct device *);
  extern void device_pm_remove(struct device *);
  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 *);
  
  #else /* !CONFIG_PM_SLEEP */
  
  static inline void device_pm_sleep_init(struct device *dev) {}
  
  static inline void device_pm_add(struct device *dev) {}
  
  static inline void device_pm_remove(struct device *dev)
  {
  	pm_runtime_remove(dev);
  }
  
  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) {}
  
  #endif /* !CONFIG_PM_SLEEP */
  
  static inline void device_pm_init(struct device *dev)
  {
  	device_pm_init_common(dev);
  	device_pm_sleep_init(dev);
  	pm_runtime_init(dev);
  }
  
  #ifdef CONFIG_PM
  
  /*
   * 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_latency(struct device *dev);
  extern void pm_qos_sysfs_remove_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 */
  
  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) {}
  
  #endif