1 #include <linux/pm_qos.h> 2 3 static inline void device_pm_init_common(struct device *dev) 4 { 5 if (!dev->power.early_init) { 6 spin_lock_init(&dev->power.lock); 7 dev->power.qos = NULL; 8 dev->power.early_init = true; 9 } 10 } 11 12 #ifdef CONFIG_PM_RUNTIME 13 14 static inline void pm_runtime_early_init(struct device *dev) 15 { 16 dev->power.disable_depth = 1; 17 device_pm_init_common(dev); 18 } 19 20 extern void pm_runtime_init(struct device *dev); 21 extern void pm_runtime_remove(struct device *dev); 22 23 #else /* !CONFIG_PM_RUNTIME */ 24 25 static inline void pm_runtime_early_init(struct device *dev) 26 { 27 device_pm_init_common(dev); 28 } 29 30 static inline void pm_runtime_init(struct device *dev) {} 31 static inline void pm_runtime_remove(struct device *dev) {} 32 33 #endif /* !CONFIG_PM_RUNTIME */ 34 35 #ifdef CONFIG_PM_SLEEP 36 37 /* kernel/power/main.c */ 38 extern int pm_async_enabled; 39 40 /* drivers/base/power/main.c */ 41 extern struct list_head dpm_list; /* The active device list */ 42 43 static inline struct device *to_device(struct list_head *entry) 44 { 45 return container_of(entry, struct device, power.entry); 46 } 47 48 extern void device_pm_sleep_init(struct device *dev); 49 extern void device_pm_add(struct device *); 50 extern void device_pm_remove(struct device *); 51 extern void device_pm_move_before(struct device *, struct device *); 52 extern void device_pm_move_after(struct device *, struct device *); 53 extern void device_pm_move_last(struct device *); 54 55 #else /* !CONFIG_PM_SLEEP */ 56 57 static inline void device_pm_sleep_init(struct device *dev) {} 58 59 static inline void device_pm_add(struct device *dev) {} 60 61 static inline void device_pm_remove(struct device *dev) 62 { 63 pm_runtime_remove(dev); 64 } 65 66 static inline void device_pm_move_before(struct device *deva, 67 struct device *devb) {} 68 static inline void device_pm_move_after(struct device *deva, 69 struct device *devb) {} 70 static inline void device_pm_move_last(struct device *dev) {} 71 72 #endif /* !CONFIG_PM_SLEEP */ 73 74 static inline void device_pm_init(struct device *dev) 75 { 76 device_pm_init_common(dev); 77 device_pm_sleep_init(dev); 78 pm_runtime_init(dev); 79 } 80 81 #ifdef CONFIG_PM 82 83 /* 84 * sysfs.c 85 */ 86 87 extern int dpm_sysfs_add(struct device *dev); 88 extern void dpm_sysfs_remove(struct device *dev); 89 extern void rpm_sysfs_remove(struct device *dev); 90 extern int wakeup_sysfs_add(struct device *dev); 91 extern void wakeup_sysfs_remove(struct device *dev); 92 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 93 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 94 extern int pm_qos_sysfs_add_flags(struct device *dev); 95 extern void pm_qos_sysfs_remove_flags(struct device *dev); 96 97 #else /* CONFIG_PM */ 98 99 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 100 static inline void dpm_sysfs_remove(struct device *dev) {} 101 static inline void rpm_sysfs_remove(struct device *dev) {} 102 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 103 static inline void wakeup_sysfs_remove(struct device *dev) {} 104 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 105 static inline void pm_qos_sysfs_remove(struct device *dev) {} 106 107 #endif 108