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.power_state = PMSG_INVALID; 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 dev_pm_qos_constraints_init(dev); 62 } 63 64 static inline void device_pm_remove(struct device *dev) 65 { 66 dev_pm_qos_constraints_destroy(dev); 67 pm_runtime_remove(dev); 68 } 69 70 static inline void device_pm_move_before(struct device *deva, 71 struct device *devb) {} 72 static inline void device_pm_move_after(struct device *deva, 73 struct device *devb) {} 74 static inline void device_pm_move_last(struct device *dev) {} 75 76 #endif /* !CONFIG_PM_SLEEP */ 77 78 static inline void device_pm_init(struct device *dev) 79 { 80 device_pm_init_common(dev); 81 device_pm_sleep_init(dev); 82 pm_runtime_init(dev); 83 } 84 85 #ifdef CONFIG_PM 86 87 /* 88 * sysfs.c 89 */ 90 91 extern int dpm_sysfs_add(struct device *dev); 92 extern void dpm_sysfs_remove(struct device *dev); 93 extern void rpm_sysfs_remove(struct device *dev); 94 extern int wakeup_sysfs_add(struct device *dev); 95 extern void wakeup_sysfs_remove(struct device *dev); 96 extern int pm_qos_sysfs_add_latency(struct device *dev); 97 extern void pm_qos_sysfs_remove_latency(struct device *dev); 98 extern int pm_qos_sysfs_add_flags(struct device *dev); 99 extern void pm_qos_sysfs_remove_flags(struct device *dev); 100 101 #else /* CONFIG_PM */ 102 103 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 104 static inline void dpm_sysfs_remove(struct device *dev) {} 105 static inline void rpm_sysfs_remove(struct device *dev) {} 106 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 107 static inline void wakeup_sysfs_remove(struct device *dev) {} 108 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 109 static inline void pm_qos_sysfs_remove(struct device *dev) {} 110 111 #endif 112