drivers/base/power/power.h

   1 /*
   2  * shutdown.c
   3  */
   4
   5 extern void device_shutdown(void);
   6
   7
   8 #ifdef CONFIG_PM
   9
  10 /*
  11  * main.c
  12  */
  13
  14 /*
  15  * Used to synchronize global power management operations.
  16  */
  17 extern struct semaphore dpm_sem;
  18
  19 /*
  20  * Used to serialize changes to the dpm_* lists.
  21  */
  22 extern struct semaphore dpm_list_sem;
  23
  24 /*
  25  * The PM lists.
  26  */
  27 extern struct list_head dpm_active;
  28 extern struct list_head dpm_off;
  29 extern struct list_head dpm_off_irq;
  30
  31
  32 static inline struct dev_pm_info * to_pm_info(struct list_head * entry)
  33 {
  34         return container_of(entry, struct dev_pm_info, entry);
  35 }
  36
  37 static inline struct device * to_device(struct list_head * entry)
  38 {
  39         return container_of(to_pm_info(entry), struct device, power);
  40 }
  41
  42 extern int device_pm_add(struct device *);
  43 extern void device_pm_remove(struct device *);
  44
  45 /*
  46  * sysfs.c
  47  */
  48
  49 extern int dpm_sysfs_add(struct device *);
  50 extern void dpm_sysfs_remove(struct device *);
  51
  52 /*
  53  * resume.c
  54  */
  55
  56 extern void dpm_resume(void);
  57 extern void dpm_power_up(void);
  58 extern int resume_device(struct device *);
  59
  60 /*
  61  * suspend.c
  62  */
  63 extern int suspend_device(struct device *, pm_message_t);
  64
  65
  66 /*
  67  * runtime.c
  68  */
  69
  70 extern int dpm_runtime_suspend(struct device *, pm_message_t);
  71 extern void dpm_runtime_resume(struct device *);
  72
  73 #else /* CONFIG_PM */
  74
  75
  76 static inline int device_pm_add(struct device * dev)
  77 {
  78         return 0;
  79 }
  80 static inline void device_pm_remove(struct device * dev)
  81 {
  82
  83 }
  84
  85 static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state)
  86 {
  87         return 0;
  88 }
  89
  90 static inline void dpm_runtime_resume(struct device * dev)
  91 {
  92
  93 }
  94
  95 #endif