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 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 /* 24 * sysfs.c 25 */ 26 27 extern int dpm_sysfs_add(struct device *dev); 28 extern void dpm_sysfs_remove(struct device *dev); 29 extern void rpm_sysfs_remove(struct device *dev); 30 extern int wakeup_sysfs_add(struct device *dev); 31 extern void wakeup_sysfs_remove(struct device *dev); 32 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 33 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 34 extern int pm_qos_sysfs_add_flags(struct device *dev); 35 extern void pm_qos_sysfs_remove_flags(struct device *dev); 36 37 #else /* CONFIG_PM */ 38 39 static inline void pm_runtime_early_init(struct device *dev) 40 { 41 device_pm_init_common(dev); 42 } 43 44 static inline void pm_runtime_init(struct device *dev) {} 45 static inline void pm_runtime_remove(struct device *dev) {} 46 47 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 48 static inline void dpm_sysfs_remove(struct device *dev) {} 49 static inline void rpm_sysfs_remove(struct device *dev) {} 50 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 51 static inline void wakeup_sysfs_remove(struct device *dev) {} 52 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 53 static inline void pm_qos_sysfs_remove(struct device *dev) {} 54 55 #endif 56 57 #ifdef CONFIG_PM_SLEEP 58 59 /* kernel/power/main.c */ 60 extern int pm_async_enabled; 61 62 /* drivers/base/power/main.c */ 63 extern struct list_head dpm_list; /* The active device list */ 64 65 static inline struct device *to_device(struct list_head *entry) 66 { 67 return container_of(entry, struct device, power.entry); 68 } 69 70 extern void device_pm_sleep_init(struct device *dev); 71 extern void device_pm_add(struct device *); 72 extern void device_pm_remove(struct device *); 73 extern void device_pm_move_before(struct device *, struct device *); 74 extern void device_pm_move_after(struct device *, struct device *); 75 extern void device_pm_move_last(struct device *); 76 77 #else /* !CONFIG_PM_SLEEP */ 78 79 static inline void device_pm_sleep_init(struct device *dev) {} 80 81 static inline void device_pm_add(struct device *dev) {} 82 83 static inline void device_pm_remove(struct device *dev) 84 { 85 pm_runtime_remove(dev); 86 } 87 88 static inline void device_pm_move_before(struct device *deva, 89 struct device *devb) {} 90 static inline void device_pm_move_after(struct device *deva, 91 struct device *devb) {} 92 static inline void device_pm_move_last(struct device *dev) {} 93 94 #endif /* !CONFIG_PM_SLEEP */ 95 96 static inline void device_pm_init(struct device *dev) 97 { 98 device_pm_init_common(dev); 99 device_pm_sleep_init(dev); 100 pm_runtime_init(dev); 101 } 102