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 int device_wakeup_attach_irq(struct device *dev, 45 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 int 53 device_wakeup_attach_irq(struct device *dev, 54 struct wake_irq *wakeirq) 55 { 56 return 0; 57 } 58 59 static inline void device_wakeup_detach_irq(struct device *dev) 60 { 61 } 62 63 static inline void device_wakeup_arm_wake_irqs(void) 64 { 65 } 66 67 static inline void device_wakeup_disarm_wake_irqs(void) 68 { 69 } 70 71 #endif /* CONFIG_PM_SLEEP */ 72 73 /* 74 * sysfs.c 75 */ 76 77 extern int dpm_sysfs_add(struct device *dev); 78 extern void dpm_sysfs_remove(struct device *dev); 79 extern void rpm_sysfs_remove(struct device *dev); 80 extern int wakeup_sysfs_add(struct device *dev); 81 extern void wakeup_sysfs_remove(struct device *dev); 82 extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 83 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 84 extern int pm_qos_sysfs_add_flags(struct device *dev); 85 extern void pm_qos_sysfs_remove_flags(struct device *dev); 86 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 87 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 88 89 #else /* CONFIG_PM */ 90 91 static inline void pm_runtime_early_init(struct device *dev) 92 { 93 device_pm_init_common(dev); 94 } 95 96 static inline void pm_runtime_init(struct device *dev) {} 97 static inline void pm_runtime_reinit(struct device *dev) {} 98 static inline void pm_runtime_remove(struct device *dev) {} 99 100 static inline int dpm_sysfs_add(struct device *dev) { return 0; } 101 static inline void dpm_sysfs_remove(struct device *dev) {} 102 static inline void rpm_sysfs_remove(struct device *dev) {} 103 static inline int wakeup_sysfs_add(struct device *dev) { return 0; } 104 static inline void wakeup_sysfs_remove(struct device *dev) {} 105 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; } 106 static inline void pm_qos_sysfs_remove(struct device *dev) {} 107 108 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq) 109 { 110 } 111 112 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq) 113 { 114 } 115 116 static inline void dev_pm_enable_wake_irq_check(struct device *dev, 117 bool can_change_status) 118 { 119 } 120 121 static inline void dev_pm_disable_wake_irq_check(struct device *dev) 122 { 123 } 124 125 #endif 126 127 #ifdef CONFIG_PM_SLEEP 128 129 /* kernel/power/main.c */ 130 extern int pm_async_enabled; 131 132 /* drivers/base/power/main.c */ 133 extern struct list_head dpm_list; /* The active device list */ 134 135 static inline struct device *to_device(struct list_head *entry) 136 { 137 return container_of(entry, struct device, power.entry); 138 } 139 140 extern void device_pm_sleep_init(struct device *dev); 141 extern void device_pm_add(struct device *); 142 extern void device_pm_remove(struct device *); 143 extern void device_pm_move_before(struct device *, struct device *); 144 extern void device_pm_move_after(struct device *, struct device *); 145 extern void device_pm_move_last(struct device *); 146 extern void device_pm_check_callbacks(struct device *dev); 147 148 static inline bool device_pm_initialized(struct device *dev) 149 { 150 return dev->power.in_dpm_list; 151 } 152 153 #else /* !CONFIG_PM_SLEEP */ 154 155 static inline void device_pm_sleep_init(struct device *dev) {} 156 157 static inline void device_pm_add(struct device *dev) {} 158 159 static inline void device_pm_remove(struct device *dev) 160 { 161 pm_runtime_remove(dev); 162 } 163 164 static inline void device_pm_move_before(struct device *deva, 165 struct device *devb) {} 166 static inline void device_pm_move_after(struct device *deva, 167 struct device *devb) {} 168 static inline void device_pm_move_last(struct device *dev) {} 169 170 static inline void device_pm_check_callbacks(struct device *dev) {} 171 172 static inline bool device_pm_initialized(struct device *dev) 173 { 174 return device_is_registered(dev); 175 } 176 177 #endif /* !CONFIG_PM_SLEEP */ 178 179 static inline void device_pm_init(struct device *dev) 180 { 181 device_pm_init_common(dev); 182 device_pm_sleep_init(dev); 183 pm_runtime_init(dev); 184 } 185