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#define WAKE_IRQ_DEDICATED_ENABLED BIT(3)
33
34struct wake_irq {
35 struct device *dev;
36 unsigned int status;
37 int irq;
38 const char *name;
39};
40
41extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
42extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
43extern void dev_pm_enable_wake_irq_check(struct device *dev,
44 bool can_change_status);
45extern void dev_pm_disable_wake_irq_check(struct device *dev, bool cond_disable);
46extern void dev_pm_enable_wake_irq_complete(struct device *dev);
47
48#ifdef CONFIG_PM_SLEEP
49
50extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
51extern void device_wakeup_detach_irq(struct device *dev);
52extern void device_wakeup_arm_wake_irqs(void);
53extern void device_wakeup_disarm_wake_irqs(void);
54
55#else
56
57static inline void device_wakeup_attach_irq(struct device *dev,
58 struct wake_irq *wakeirq) {}
59
60static inline void device_wakeup_detach_irq(struct device *dev)
61{
62}
63
64#endif /* CONFIG_PM_SLEEP */
65
66/*
67 * sysfs.c
68 */
69
70extern int dpm_sysfs_add(struct device *dev);
71extern void dpm_sysfs_remove(struct device *dev);
72extern void rpm_sysfs_remove(struct device *dev);
73extern int wakeup_sysfs_add(struct device *dev);
74extern void wakeup_sysfs_remove(struct device *dev);
75extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
76extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
77extern int pm_qos_sysfs_add_flags(struct device *dev);
78extern void pm_qos_sysfs_remove_flags(struct device *dev);
79extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
80extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
81extern int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid);
82
83#else /* CONFIG_PM */
84
85static inline void pm_runtime_early_init(struct device *dev)
86{
87 device_pm_init_common(dev);
88}
89
90static inline void pm_runtime_init(struct device *dev) {}
91static inline void pm_runtime_reinit(struct device *dev) {}
92static inline void pm_runtime_remove(struct device *dev) {}
93
94static inline int dpm_sysfs_add(struct device *dev) { return 0; }
95static inline void dpm_sysfs_remove(struct device *dev) {}
96static inline int dpm_sysfs_change_owner(struct device *dev, kuid_t kuid,
97 kgid_t kgid) { return 0; }
98
99#endif
100
101#ifdef CONFIG_PM_SLEEP
102
103/* kernel/power/main.c */
104extern int pm_async_enabled;
105
106/* drivers/base/power/main.c */
107extern struct list_head dpm_list; /* The active device list */
108
109static inline struct device *to_device(struct list_head *entry)
110{
111 return container_of(entry, struct device, power.entry);
112}
113
114extern void device_pm_sleep_init(struct device *dev);
115extern void device_pm_add(struct device *);
116extern void device_pm_remove(struct device *);
117extern void device_pm_move_before(struct device *, struct device *);
118extern void device_pm_move_after(struct device *, struct device *);
119extern void device_pm_move_last(struct device *);
120extern void device_pm_check_callbacks(struct device *dev);
121
122static inline bool device_pm_initialized(struct device *dev)
123{
124 return dev->power.in_dpm_list;
125}
126
127/* drivers/base/power/wakeup_stats.c */
128extern int wakeup_source_sysfs_add(struct device *parent,
129 struct wakeup_source *ws);
130extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
131
132extern int pm_wakeup_source_sysfs_add(struct device *parent);
133
134#else /* !CONFIG_PM_SLEEP */
135
136static inline void device_pm_sleep_init(struct device *dev) {}
137
138static inline void device_pm_add(struct device *dev) {}
139
140static inline void device_pm_remove(struct device *dev)
141{
142 pm_runtime_remove(dev);
143}
144
145static inline void device_pm_move_before(struct device *deva,
146 struct device *devb) {}
147static inline void device_pm_move_after(struct device *deva,
148 struct device *devb) {}
149static inline void device_pm_move_last(struct device *dev) {}
150
151static inline void device_pm_check_callbacks(struct device *dev) {}
152
153static inline bool device_pm_initialized(struct device *dev)
154{
155 return device_is_registered(dev);
156}
157
158static inline int pm_wakeup_source_sysfs_add(struct device *parent)
159{
160 return 0;
161}
162
163#endif /* !CONFIG_PM_SLEEP */
164
165static inline void device_pm_init(struct device *dev)
166{
167 device_pm_init_common(dev);
168 device_pm_sleep_init(dev);
169 pm_runtime_init(dev);
170}
171