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 #define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0) 25 #define WAKE_IRQ_DEDICATED_MANAGED BIT(1) 26 #define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \ 27 WAKE_IRQ_DEDICATED_MANAGED) 28 29 struct wake_irq { 30 struct device *dev; 31 unsigned int status; 32 int irq; 33 }; 34 35 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 36 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 37 extern void dev_pm_enable_wake_irq_check(struct device *dev, 38 bool can_change_status); 39 extern void dev_pm_disable_wake_irq_check(struct device *dev); 40 41 #ifdef CONFIG_PM_SLEEP 42 43 extern int device_wakeup_attach_irq(struct device *dev, 44 struct wake_irq *wakeirq); 45 extern void device_wakeup_detach_irq(struct device *dev); 46 extern void device_wakeup_arm_wake_irqs(void); 47 extern void device_wakeup_disarm_wake_irqs(void); 48 49 #else 50 51 static inline int 52 device_wakeup_attach_irq(struct device *dev, 53 struct wake_irq *wakeirq) 54 { 55 return 0; 56 } 57 58 static inline void device_wakeup_detach_irq(struct device *dev) 59 { 60 } 61 62 static inline void device_wakeup_arm_wake_irqs(void) 63 { 64 } 65 66 static inline void device_wakeup_disarm_wake_irqs(void) 67 { 68 } 69 70 #endif /* CONFIG_PM_SLEEP */ 71 72 /* 73 * sysfs.c 74 */ 75 76 extern int dpm_sysfs_add(struct device *dev); 77 extern void dpm_sysfs_remove(struct device *dev); 78 extern void rpm_sysfs_remove(struct device *dev); 79 extern int wakeup_sysfs_add(struct device *dev); 80 extern void wakeup_sysfs_remove(struct device *dev); 81 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 82 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 83 extern int pm_qos_sysfs_add_flags(struct device *dev); 84 extern void pm_qos_sysfs_remove_flags(struct device *dev); 85 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 86 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 87 88 #else /* CONFIG_PM */ 89 90 static inline void pm_runtime_early_init(struct device *dev) 91 { 92 device_pm_init_common(dev); 93 } 94 95 static inline void pm_runtime_init(struct device *dev) {} 96 static inline void pm_runtime_reinit(struct device *dev) {} 97 static inline void pm_runtime_remove(struct device *dev) {} 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 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq) 108 { 109 } 110 111 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq) 112 { 113 } 114 115 static inline void dev_pm_enable_wake_irq_check(struct device *dev, 116 bool can_change_status) 117 { 118 } 119 120 static inline void dev_pm_disable_wake_irq_check(struct device *dev) 121 { 122 } 123 124 #endif 125 126 #ifdef CONFIG_PM_SLEEP 127 128 /* kernel/power/main.c */ 129 extern int pm_async_enabled; 130 131 /* drivers/base/power/main.c */ 132 extern struct list_head dpm_list; /* The active device list */ 133 134 static inline struct device *to_device(struct list_head *entry) 135 { 136 return container_of(entry, struct device, power.entry); 137 } 138 139 extern void device_pm_sleep_init(struct device *dev); 140 extern void device_pm_add(struct device *); 141 extern void device_pm_remove(struct device *); 142 extern void device_pm_move_before(struct device *, struct device *); 143 extern void device_pm_move_after(struct device *, struct device *); 144 extern void device_pm_move_last(struct device *); 145 extern void device_pm_check_callbacks(struct device *dev); 146 147 static inline bool device_pm_initialized(struct device *dev) 148 { 149 return dev->power.in_dpm_list; 150 } 151 152 #else /* !CONFIG_PM_SLEEP */ 153 154 static inline void device_pm_sleep_init(struct device *dev) {} 155 156 static inline void device_pm_add(struct device *dev) {} 157 158 static inline void device_pm_remove(struct device *dev) 159 { 160 pm_runtime_remove(dev); 161 } 162 163 static inline void device_pm_move_before(struct device *deva, 164 struct device *devb) {} 165 static inline void device_pm_move_after(struct device *deva, 166 struct device *devb) {} 167 static inline void device_pm_move_last(struct device *dev) {} 168 169 static inline void device_pm_check_callbacks(struct device *dev) {} 170 171 static inline bool device_pm_initialized(struct device *dev) 172 { 173 return device_is_registered(dev); 174 } 175 176 #endif /* !CONFIG_PM_SLEEP */ 177 178 static inline void device_pm_init(struct device *dev) 179 { 180 device_pm_init_common(dev); 181 device_pm_sleep_init(dev); 182 pm_runtime_init(dev); 183 } 184