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 extern int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid); 78 79 #else /* CONFIG_PM */ 80 81 static inline void pm_runtime_early_init(struct device *dev) 82 { 83 device_pm_init_common(dev); 84 } 85 86 static inline void pm_runtime_init(struct device *dev) {} 87 static inline void pm_runtime_reinit(struct device *dev) {} 88 static inline void pm_runtime_remove(struct device *dev) {} 89 90 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 91 static inline void dpm_sysfs_remove(struct device *dev) {} 92 static inline int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, 93 kgid_t kgid) { return 0; } 94 95 #endif 96 97 #ifdef CONFIG_PM_SLEEP 98 99 /* kernel/power/main.c */ 100 extern int pm_async_enabled; 101 102 /* drivers/base/power/main.c */ 103 extern struct list_head dpm_list; /* The active device list */ 104 105 static inline struct device *to_device(struct list_head *entry) 106 { 107 return container_of(entry, struct device, power.entry); 108 } 109 110 extern void device_pm_sleep_init(struct device *dev); 111 extern void device_pm_add(struct device *); 112 extern void device_pm_remove(struct device *); 113 extern void device_pm_move_before(struct device *, struct device *); 114 extern void device_pm_move_after(struct device *, struct device *); 115 extern void device_pm_move_last(struct device *); 116 extern void device_pm_check_callbacks(struct device *dev); 117 118 static inline bool device_pm_initialized(struct device *dev) 119 { 120 return dev->power.in_dpm_list; 121 } 122 123 /* drivers/base/power/wakeup_stats.c */ 124 extern int wakeup_source_sysfs_add(struct device *parent, 125 struct wakeup_source *ws); 126 extern void wakeup_source_sysfs_remove(struct wakeup_source *ws); 127 128 extern int pm_wakeup_source_sysfs_add(struct device *parent); 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 static inline bool device_pm_initialized(struct device *dev) 150 { 151 return device_is_registered(dev); 152 } 153 154 static inline int pm_wakeup_source_sysfs_add(struct device *parent) 155 { 156 return 0; 157 } 158 159 #endif /* !CONFIG_PM_SLEEP */ 160 161 static inline void device_pm_init(struct device *dev) 162 { 163 device_pm_init_common(dev); 164 device_pm_sleep_init(dev); 165 pm_runtime_init(dev); 166 } 167