power.h (5029B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#include <linux/pm_qos.h> 3 4static 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 15static inline void pm_runtime_early_init(struct device *dev) 16{ 17 dev->power.disable_depth = 1; 18 device_pm_init_common(dev); 19} 20 21extern void pm_runtime_init(struct device *dev); 22extern void pm_runtime_reinit(struct device *dev); 23extern void pm_runtime_remove(struct device *dev); 24extern 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_REVERSE BIT(2) 29#define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \ 30 WAKE_IRQ_DEDICATED_MANAGED | \ 31 WAKE_IRQ_DEDICATED_REVERSE) 32 33struct wake_irq { 34 struct device *dev; 35 unsigned int status; 36 int irq; 37 const char *name; 38}; 39 40extern void dev_pm_arm_wake_irq(struct wake_irq *wirq); 41extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq); 42extern void dev_pm_enable_wake_irq_check(struct device *dev, 43 bool can_change_status); 44extern void dev_pm_disable_wake_irq_check(struct device *dev, bool cond_disable); 45extern void dev_pm_enable_wake_irq_complete(struct device *dev); 46 47#ifdef CONFIG_PM_SLEEP 48 49extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq); 50extern void device_wakeup_detach_irq(struct device *dev); 51extern void device_wakeup_arm_wake_irqs(void); 52extern void device_wakeup_disarm_wake_irqs(void); 53 54#else 55 56static inline void device_wakeup_attach_irq(struct device *dev, 57 struct wake_irq *wakeirq) {} 58 59static inline void device_wakeup_detach_irq(struct device *dev) 60{ 61} 62 63#endif /* CONFIG_PM_SLEEP */ 64 65/* 66 * sysfs.c 67 */ 68 69extern int dpm_sysfs_add(struct device *dev); 70extern void dpm_sysfs_remove(struct device *dev); 71extern void rpm_sysfs_remove(struct device *dev); 72extern int wakeup_sysfs_add(struct device *dev); 73extern void wakeup_sysfs_remove(struct device *dev); 74extern int pm_qos_sysfs_add_resume_latency(struct device *dev); 75extern void pm_qos_sysfs_remove_resume_latency(struct device *dev); 76extern int pm_qos_sysfs_add_flags(struct device *dev); 77extern void pm_qos_sysfs_remove_flags(struct device *dev); 78extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev); 79extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev); 80extern int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid); 81 82#else /* CONFIG_PM */ 83 84static inline void pm_runtime_early_init(struct device *dev) 85{ 86 device_pm_init_common(dev); 87} 88 89static inline void pm_runtime_init(struct device *dev) {} 90static inline void pm_runtime_reinit(struct device *dev) {} 91static inline void pm_runtime_remove(struct device *dev) {} 92 93static inline int dpm_sysfs_add(struct device *dev) { return 0; } 94static inline void dpm_sysfs_remove(struct device *dev) {} 95static inline int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, 96 kgid_t kgid) { return 0; } 97 98#endif 99 100#ifdef CONFIG_PM_SLEEP 101 102/* kernel/power/main.c */ 103extern int pm_async_enabled; 104 105/* drivers/base/power/main.c */ 106extern struct list_head dpm_list; /* The active device list */ 107 108static inline struct device *to_device(struct list_head *entry) 109{ 110 return container_of(entry, struct device, power.entry); 111} 112 113extern void device_pm_sleep_init(struct device *dev); 114extern void device_pm_add(struct device *); 115extern void device_pm_remove(struct device *); 116extern void device_pm_move_before(struct device *, struct device *); 117extern void device_pm_move_after(struct device *, struct device *); 118extern void device_pm_move_last(struct device *); 119extern void device_pm_check_callbacks(struct device *dev); 120 121static inline bool device_pm_initialized(struct device *dev) 122{ 123 return dev->power.in_dpm_list; 124} 125 126/* drivers/base/power/wakeup_stats.c */ 127extern int wakeup_source_sysfs_add(struct device *parent, 128 struct wakeup_source *ws); 129extern void wakeup_source_sysfs_remove(struct wakeup_source *ws); 130 131extern int pm_wakeup_source_sysfs_add(struct device *parent); 132 133#else /* !CONFIG_PM_SLEEP */ 134 135static inline void device_pm_sleep_init(struct device *dev) {} 136 137static inline void device_pm_add(struct device *dev) {} 138 139static inline void device_pm_remove(struct device *dev) 140{ 141 pm_runtime_remove(dev); 142} 143 144static inline void device_pm_move_before(struct device *deva, 145 struct device *devb) {} 146static inline void device_pm_move_after(struct device *deva, 147 struct device *devb) {} 148static inline void device_pm_move_last(struct device *dev) {} 149 150static inline void device_pm_check_callbacks(struct device *dev) {} 151 152static inline bool device_pm_initialized(struct device *dev) 153{ 154 return device_is_registered(dev); 155} 156 157static inline int pm_wakeup_source_sysfs_add(struct device *parent) 158{ 159 return 0; 160} 161 162#endif /* !CONFIG_PM_SLEEP */ 163 164static inline void device_pm_init(struct device *dev) 165{ 166 device_pm_init_common(dev); 167 device_pm_sleep_init(dev); 168 pm_runtime_init(dev); 169}