drivers/base/power/power.h

   1 #include <linux/pm_qos.h>
   2
   3 #ifdef CONFIG_PM_RUNTIME
   4
   5 extern void pm_runtime_init(struct device *dev);
   6 extern void pm_runtime_remove(struct device *dev);
   7
   8 #else /* !CONFIG_PM_RUNTIME */
   9
  10 static inline void pm_runtime_init(struct device *dev) {}
  11 static inline void pm_runtime_remove(struct device *dev) {}
  12
  13 #endif /* !CONFIG_PM_RUNTIME */
  14
  15 #ifdef CONFIG_PM_SLEEP
  16
  17 /* kernel/power/main.c */
  18 extern int pm_async_enabled;
  19
  20 /* drivers/base/power/main.c */
  21 extern struct list_head dpm_list;       /* The active device list */
  22
  23 static inline struct device *to_device(struct list_head *entry)
  24 {
  25         return container_of(entry, struct device, power.entry);
  26 }
  27
  28 extern void device_pm_init(struct device *dev);
  29 extern void device_pm_add(struct device *);
  30 extern void device_pm_remove(struct device *);
  31 extern void device_pm_move_before(struct device *, struct device *);
  32 extern void device_pm_move_after(struct device *, struct device *);
  33 extern void device_pm_move_last(struct device *);
  34
  35 #else /* !CONFIG_PM_SLEEP */
  36
  37 static inline void device_pm_init(struct device *dev)
  38 {
  39         spin_lock_init(&dev->power.lock);
  40         dev->power.power_state = PMSG_INVALID;
  41         pm_runtime_init(dev);
  42 }
  43
  44 static inline void device_pm_add(struct device *dev)
  45 {
  46         dev_pm_qos_constraints_init(dev);
  47 }
  48
  49 static inline void device_pm_remove(struct device *dev)
  50 {
  51         dev_pm_qos_constraints_destroy(dev);
  52         pm_runtime_remove(dev);
  53 }
  54
  55 static inline void device_pm_move_before(struct device *deva,
  56                                          struct device *devb) {}
  57 static inline void device_pm_move_after(struct device *deva,
  58                                         struct device *devb) {}
  59 static inline void device_pm_move_last(struct device *dev) {}
  60
  61 #endif /* !CONFIG_PM_SLEEP */
  62
  63 #ifdef CONFIG_PM
  64
  65 /*
  66  * sysfs.c
  67  */
  68
  69 extern int dpm_sysfs_add(struct device *dev);
  70 extern void dpm_sysfs_remove(struct device *dev);
  71 extern void rpm_sysfs_remove(struct device *dev);
  72 extern int wakeup_sysfs_add(struct device *dev);
  73 extern void wakeup_sysfs_remove(struct device *dev);
  74
  75 #else /* CONFIG_PM */
  76
  77 static inline int dpm_sysfs_add(struct device *dev) { return 0; }
  78 static inline void dpm_sysfs_remove(struct device *dev) {}
  79 static inline void rpm_sysfs_remove(struct device *dev) {}
  80 static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
  81 static inline void wakeup_sysfs_remove(struct device *dev) {}
  82
  83 #endif