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