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_reinit(struct device *dev); 22 extern void pm_runtime_remove(struct device *dev); 23 24 struct wake_irq { 25 struct device *dev; 26 int irq; 27 bool dedicated_irq:1; 28 }; 29 30 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 31 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 32 33 #ifdef CONFIG_PM_SLEEP 34 35 extern int device_wakeup_attach_irq(struct device *dev, 36 struct wake_irq *wakeirq); 37 extern void device_wakeup_detach_irq(struct device *dev); 38 extern void device_wakeup_arm_wake_irqs(void); 39 extern void device_wakeup_disarm_wake_irqs(void); 40 41 #else 42 43 static inline int 44 device_wakeup_attach_irq(struct device *dev, 45 struct wake_irq *wakeirq) 46 { 47 return 0; 48 } 49 50 static inline void device_wakeup_detach_irq(struct device *dev) 51 { 52 } 53 54 static inline void device_wakeup_arm_wake_irqs(void) 55 { 56 } 57 58 static inline void device_wakeup_disarm_wake_irqs(void) 59 { 60 } 61 62 #endif /* CONFIG_PM_SLEEP */ 63 64 /* 65 * sysfs.c 66 */ 67 68 extern int dpm_sysfs_add(struct device *dev); 69 extern void dpm_sysfs_remove(struct device *dev); 70 extern void rpm_sysfs_remove(struct device *dev); 71 extern int wakeup_sysfs_add(struct device *dev); 72 extern void wakeup_sysfs_remove(struct device *dev); 73 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 74 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 75 extern int pm_qos_sysfs_add_flags(struct device *dev); 76 extern void pm_qos_sysfs_remove_flags(struct device *dev); 77 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 78 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 79 80 #else /* CONFIG_PM */ 81 82 static inline void pm_runtime_early_init(struct device *dev) 83 { 84 device_pm_init_common(dev); 85 } 86 87 static inline void pm_runtime_init(struct device *dev) {} 88 static inline void pm_runtime_reinit(struct device *dev) {} 89 static inline void pm_runtime_remove(struct device *dev) {} 90 91 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 92 static inline void dpm_sysfs_remove(struct device *dev) {} 93 static inline void rpm_sysfs_remove(struct device *dev) {} 94 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 95 static inline void wakeup_sysfs_remove(struct device *dev) {} 96 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 97 static inline void pm_qos_sysfs_remove(struct device *dev) {} 98 99 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq) 100 { 101 } 102 103 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq) 104 { 105 } 106 107 #endif 108 109 #ifdef CONFIG_PM_SLEEP 110 111 /* kernel/power/main.c */ 112 extern int pm_async_enabled; 113 114 /* drivers/base/power/main.c */ 115 extern struct list_head dpm_list; /* The active device list */ 116 117 static inline struct device *to_device(struct list_head *entry) 118 { 119 return container_of(entry, struct device, power.entry); 120 } 121 122 extern void device_pm_sleep_init(struct device *dev); 123 extern void device_pm_add(struct device *); 124 extern void device_pm_remove(struct device *); 125 extern void device_pm_move_before(struct device *, struct device *); 126 extern void device_pm_move_after(struct device *, struct device *); 127 extern void device_pm_move_last(struct device *); 128 extern void device_pm_check_callbacks(struct device *dev); 129 130 #else /* !CONFIG_PM_SLEEP */ 131 132 static inline void device_pm_sleep_init(struct device *dev) {} 133 134 static inline void device_pm_add(struct device *dev) {} 135 136 static inline void device_pm_remove(struct device *dev) 137 { 138 pm_runtime_remove(dev); 139 } 140 141 static inline void device_pm_move_before(struct device *deva, 142 struct device *devb) {} 143 static inline void device_pm_move_after(struct device *deva, 144 struct device *devb) {} 145 static inline void device_pm_move_last(struct device *dev) {} 146 147 static inline void device_pm_check_callbacks(struct device *dev) {} 148 149 #endif /* !CONFIG_PM_SLEEP */ 150 151 static inline void device_pm_init(struct device *dev) 152 { 153 device_pm_init_common(dev); 154 device_pm_sleep_init(dev); 155 pm_runtime_init(dev); 156 } 157