1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #include <linux/pm_qos.h> 3 4 static inline void device_pm_init_common(struct device *dev) 5 { 6 if (!dev->power.early_init) { 7 spin_lock_init(&dev->power.lock); 8 dev->power.qos = NULL; 9 dev->power.early_init = true; 10 } 11 } 12 13 #ifdef CONFIG_PM 14 15 static inline void pm_runtime_early_init(struct device *dev) 16 { 17 dev->power.disable_depth = 1; 18 device_pm_init_common(dev); 19 } 20 21 extern void pm_runtime_init(struct device *dev); 22 extern void pm_runtime_reinit(struct device *dev); 23 extern void pm_runtime_remove(struct device *dev); 24 extern u64 pm_runtime_active_time(struct device *dev); 25 26 #define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0) 27 #define WAKE_IRQ_DEDICATED_MANAGED BIT(1) 28 #define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \ 29 WAKE_IRQ_DEDICATED_MANAGED) 30 31 struct wake_irq { 32 struct device *dev; 33 unsigned int status; 34 int irq; 35 const char *name; 36 }; 37 38 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 39 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 40 extern void dev_pm_enable_wake_irq_check(struct device *dev, 41 bool can_change_status); 42 extern void dev_pm_disable_wake_irq_check(struct device *dev); 43 44 #ifdef CONFIG_PM_SLEEP 45 46 extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq); 47 extern void device_wakeup_detach_irq(struct device *dev); 48 extern void device_wakeup_arm_wake_irqs(void); 49 extern void device_wakeup_disarm_wake_irqs(void); 50 51 #else 52 53 static inline void device_wakeup_attach_irq(struct device *dev, 54 struct wake_irq *wakeirq) {} 55 56 static inline void device_wakeup_detach_irq(struct device *dev) 57 { 58 } 59 60 #endif /* CONFIG_PM_SLEEP */ 61 62 /* 63 * sysfs.c 64 */ 65 66 extern int dpm_sysfs_add(struct device *dev); 67 extern void dpm_sysfs_remove(struct device *dev); 68 extern void rpm_sysfs_remove(struct device *dev); 69 extern int wakeup_sysfs_add(struct device *dev); 70 extern void wakeup_sysfs_remove(struct device *dev); 71 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 72 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 73 extern int pm_qos_sysfs_add_flags(struct device *dev); 74 extern void pm_qos_sysfs_remove_flags(struct device *dev); 75 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 76 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 77 78 #else /* CONFIG_PM */ 79 80 static inline void pm_runtime_early_init(struct device *dev) 81 { 82 device_pm_init_common(dev); 83 } 84 85 static inline void pm_runtime_init(struct device *dev) {} 86 static inline void pm_runtime_reinit(struct device *dev) {} 87 static inline void pm_runtime_remove(struct device *dev) {} 88 89 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 90 static inline void dpm_sysfs_remove(struct device *dev) {} 91 92 #endif 93 94 #ifdef CONFIG_PM_SLEEP 95 96 /* kernel/power/main.c */ 97 extern int pm_async_enabled; 98 99 /* drivers/base/power/main.c */ 100 extern struct list_head dpm_list; /* The active device list */ 101 102 static inline struct device *to_device(struct list_head *entry) 103 { 104 return container_of(entry, struct device, power.entry); 105 } 106 107 extern void device_pm_sleep_init(struct device *dev); 108 extern void device_pm_add(struct device *); 109 extern void device_pm_remove(struct device *); 110 extern void device_pm_move_before(struct device *, struct device *); 111 extern void device_pm_move_after(struct device *, struct device *); 112 extern void device_pm_move_last(struct device *); 113 extern void device_pm_check_callbacks(struct device *dev); 114 115 static inline bool device_pm_initialized(struct device *dev) 116 { 117 return dev->power.in_dpm_list; 118 } 119 120 /* drivers/base/power/wakeup_stats.c */ 121 extern int wakeup_source_sysfs_add(struct device *parent, 122 struct wakeup_source *ws); 123 extern void wakeup_source_sysfs_remove(struct wakeup_source *ws); 124 125 extern int pm_wakeup_source_sysfs_add(struct device *parent); 126 127 #else /* !CONFIG_PM_SLEEP */ 128 129 static inline void device_pm_sleep_init(struct device *dev) {} 130 131 static inline void device_pm_add(struct device *dev) {} 132 133 static inline void device_pm_remove(struct device *dev) 134 { 135 pm_runtime_remove(dev); 136 } 137 138 static inline void device_pm_move_before(struct device *deva, 139 struct device *devb) {} 140 static inline void device_pm_move_after(struct device *deva, 141 struct device *devb) {} 142 static inline void device_pm_move_last(struct device *dev) {} 143 144 static inline void device_pm_check_callbacks(struct device *dev) {} 145 146 static inline bool device_pm_initialized(struct device *dev) 147 { 148 return device_is_registered(dev); 149 } 150 151 static inline int pm_wakeup_source_sysfs_add(struct device *parent) 152 { 153 return 0; 154 } 155 156 #endif /* !CONFIG_PM_SLEEP */ 157 158 static inline void device_pm_init(struct device *dev) 159 { 160 device_pm_init_common(dev); 161 device_pm_sleep_init(dev); 162 pm_runtime_init(dev); 163 } 164