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 struct wake_irq { 24 struct device *dev; 25 int irq; 26 bool dedicated_irq:1; 27 }; 28 29 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 30 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 31 32 #ifdef CONFIG_PM_SLEEP 33 34 extern int device_wakeup_attach_irq(struct device *dev, 35 struct wake_irq *wakeirq); 36 extern void device_wakeup_detach_irq(struct device *dev); 37 extern void device_wakeup_arm_wake_irqs(void); 38 extern void device_wakeup_disarm_wake_irqs(void); 39 40 #else 41 42 static inline int 43 device_wakeup_attach_irq(struct device *dev, 44 struct wake_irq *wakeirq) 45 { 46 return 0; 47 } 48 49 static inline void device_wakeup_detach_irq(struct device *dev) 50 { 51 } 52 53 static inline void device_wakeup_arm_wake_irqs(void) 54 { 55 } 56 57 static inline void device_wakeup_disarm_wake_irqs(void) 58 { 59 } 60 61 #endif /* CONFIG_PM_SLEEP */ 62 63 /* 64 * sysfs.c 65 */ 66 67 extern int dpm_sysfs_add(struct device *dev); 68 extern void dpm_sysfs_remove(struct device *dev); 69 extern void rpm_sysfs_remove(struct device *dev); 70 extern int wakeup_sysfs_add(struct device *dev); 71 extern void wakeup_sysfs_remove(struct device *dev); 72 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 73 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 74 extern int pm_qos_sysfs_add_flags(struct device *dev); 75 extern void pm_qos_sysfs_remove_flags(struct device *dev); 76 77 #else /* CONFIG_PM */ 78 79 static inline void pm_runtime_early_init(struct device *dev) 80 { 81 device_pm_init_common(dev); 82 } 83 84 static inline void pm_runtime_init(struct device *dev) {} 85 static inline void pm_runtime_remove(struct device *dev) {} 86 87 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 88 static inline void dpm_sysfs_remove(struct device *dev) {} 89 static inline void rpm_sysfs_remove(struct device *dev) {} 90 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 91 static inline void wakeup_sysfs_remove(struct device *dev) {} 92 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 93 static inline void pm_qos_sysfs_remove(struct device *dev) {} 94 95 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq) 96 { 97 } 98 99 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq) 100 { 101 } 102 103 #endif 104 105 #ifdef CONFIG_PM_SLEEP 106 107 /* kernel/power/main.c */ 108 extern int pm_async_enabled; 109 110 /* drivers/base/power/main.c */ 111 extern struct list_head dpm_list; /* The active device list */ 112 113 static inline struct device *to_device(struct list_head *entry) 114 { 115 return container_of(entry, struct device, power.entry); 116 } 117 118 extern void device_pm_sleep_init(struct device *dev); 119 extern void device_pm_add(struct device *); 120 extern void device_pm_remove(struct device *); 121 extern void device_pm_move_before(struct device *, struct device *); 122 extern void device_pm_move_after(struct device *, struct device *); 123 extern void device_pm_move_last(struct device *); 124 125 #else /* !CONFIG_PM_SLEEP */ 126 127 static inline void device_pm_sleep_init(struct device *dev) {} 128 129 static inline void device_pm_add(struct device *dev) {} 130 131 static inline void device_pm_remove(struct device *dev) 132 { 133 pm_runtime_remove(dev); 134 } 135 136 static inline void device_pm_move_before(struct device *deva, 137 struct device *devb) {} 138 static inline void device_pm_move_after(struct device *deva, 139 struct device *devb) {} 140 static inline void device_pm_move_last(struct device *dev) {} 141 142 #endif /* !CONFIG_PM_SLEEP */ 143 144 static inline void device_pm_init(struct device *dev) 145 { 146 device_pm_init_common(dev); 147 device_pm_sleep_init(dev); 148 pm_runtime_init(dev); 149 } 150