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 }; 35 36 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 37 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 38 extern void dev_pm_enable_wake_irq_check(struct device *dev, 39 bool can_change_status); 40 extern void dev_pm_disable_wake_irq_check(struct device *dev); 41 42 #ifdef CONFIG_PM_SLEEP 43 44 extern void device_wakeup_attach_irq(struct device *dev, 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 void device_wakeup_attach_irq(struct device *dev, 52 struct wake_irq *wakeirq) {} 53 54 static inline void device_wakeup_detach_irq(struct device *dev) 55 { 56 } 57 58 static inline void device_wakeup_arm_wake_irqs(void) 59 { 60 } 61 62 static inline void device_wakeup_disarm_wake_irqs(void) 63 { 64 } 65 66 #endif /* CONFIG_PM_SLEEP */ 67 68 /* 69 * sysfs.c 70 */ 71 72 extern int dpm_sysfs_add(struct device *dev); 73 extern void dpm_sysfs_remove(struct device *dev); 74 extern void rpm_sysfs_remove(struct device *dev); 75 extern int wakeup_sysfs_add(struct device *dev); 76 extern void wakeup_sysfs_remove(struct device *dev); 77 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 78 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 79 extern int pm_qos_sysfs_add_flags(struct device *dev); 80 extern void pm_qos_sysfs_remove_flags(struct device *dev); 81 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 82 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 83 84 #else /* CONFIG_PM */ 85 86 static inline void pm_runtime_early_init(struct device *dev) 87 { 88 device_pm_init_common(dev); 89 } 90 91 static inline void pm_runtime_init(struct device *dev) {} 92 static inline void pm_runtime_reinit(struct device *dev) {} 93 static inline void pm_runtime_remove(struct device *dev) {} 94 95 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 96 static inline void dpm_sysfs_remove(struct device *dev) {} 97 static inline void rpm_sysfs_remove(struct device *dev) {} 98 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 99 static inline void wakeup_sysfs_remove(struct device *dev) {} 100 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 101 static inline void pm_qos_sysfs_remove(struct device *dev) {} 102 103 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq) 104 { 105 } 106 107 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq) 108 { 109 } 110 111 static inline void dev_pm_enable_wake_irq_check(struct device *dev, 112 bool can_change_status) 113 { 114 } 115 116 static inline void dev_pm_disable_wake_irq_check(struct device *dev) 117 { 118 } 119 120 #endif 121 122 #ifdef CONFIG_PM_SLEEP 123 124 /* kernel/power/main.c */ 125 extern int pm_async_enabled; 126 127 /* drivers/base/power/main.c */ 128 extern struct list_head dpm_list; /* The active device list */ 129 130 static inline struct device *to_device(struct list_head *entry) 131 { 132 return container_of(entry, struct device, power.entry); 133 } 134 135 extern void device_pm_sleep_init(struct device *dev); 136 extern void device_pm_add(struct device *); 137 extern void device_pm_remove(struct device *); 138 extern void device_pm_move_before(struct device *, struct device *); 139 extern void device_pm_move_after(struct device *, struct device *); 140 extern void device_pm_move_last(struct device *); 141 extern void device_pm_check_callbacks(struct device *dev); 142 143 static inline bool device_pm_initialized(struct device *dev) 144 { 145 return dev->power.in_dpm_list; 146 } 147 148 #else /* !CONFIG_PM_SLEEP */ 149 150 static inline void device_pm_sleep_init(struct device *dev) {} 151 152 static inline void device_pm_add(struct device *dev) {} 153 154 static inline void device_pm_remove(struct device *dev) 155 { 156 pm_runtime_remove(dev); 157 } 158 159 static inline void device_pm_move_before(struct device *deva, 160 struct device *devb) {} 161 static inline void device_pm_move_after(struct device *deva, 162 struct device *devb) {} 163 static inline void device_pm_move_last(struct device *dev) {} 164 165 static inline void device_pm_check_callbacks(struct device *dev) {} 166 167 static inline bool device_pm_initialized(struct device *dev) 168 { 169 return device_is_registered(dev); 170 } 171 172 #endif /* !CONFIG_PM_SLEEP */ 173 174 static inline void device_pm_init(struct device *dev) 175 { 176 device_pm_init_common(dev); 177 device_pm_sleep_init(dev); 178 pm_runtime_init(dev); 179 } 180