1#include <linux/pm_qos.h>
2
3static inline void device_pm_init_common(struct device *dev)
4{
5	if (!dev->power.early_init) {
6		spin_lock_init(&dev->power.lock);
7		dev->power.qos = NULL;
8		dev->power.early_init = true;
9	}
10}
11
12#ifdef CONFIG_PM
13
14static inline void pm_runtime_early_init(struct device *dev)
15{
16	dev->power.disable_depth = 1;
17	device_pm_init_common(dev);
18}
19
20extern void pm_runtime_init(struct device *dev);
21extern void pm_runtime_remove(struct device *dev);
22
23/*
24 * sysfs.c
25 */
26
27extern int dpm_sysfs_add(struct device *dev);
28extern void dpm_sysfs_remove(struct device *dev);
29extern void rpm_sysfs_remove(struct device *dev);
30extern int wakeup_sysfs_add(struct device *dev);
31extern void wakeup_sysfs_remove(struct device *dev);
32extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
33extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
34extern int pm_qos_sysfs_add_flags(struct device *dev);
35extern void pm_qos_sysfs_remove_flags(struct device *dev);
36
37#else /* CONFIG_PM */
38
39static inline void pm_runtime_early_init(struct device *dev)
40{
41	device_pm_init_common(dev);
42}
43
44static inline void pm_runtime_init(struct device *dev) {}
45static inline void pm_runtime_remove(struct device *dev) {}
46
47static inline int dpm_sysfs_add(struct device *dev) { return 0; }
48static inline void dpm_sysfs_remove(struct device *dev) {}
49static inline void rpm_sysfs_remove(struct device *dev) {}
50static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
51static inline void wakeup_sysfs_remove(struct device *dev) {}
52static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
53static inline void pm_qos_sysfs_remove(struct device *dev) {}
54
55#endif
56
57#ifdef CONFIG_PM_SLEEP
58
59/* kernel/power/main.c */
60extern int pm_async_enabled;
61
62/* drivers/base/power/main.c */
63extern struct list_head dpm_list;	/* The active device list */
64
65static inline struct device *to_device(struct list_head *entry)
66{
67	return container_of(entry, struct device, power.entry);
68}
69
70extern void device_pm_sleep_init(struct device *dev);
71extern void device_pm_add(struct device *);
72extern void device_pm_remove(struct device *);
73extern void device_pm_move_before(struct device *, struct device *);
74extern void device_pm_move_after(struct device *, struct device *);
75extern void device_pm_move_last(struct device *);
76
77#else /* !CONFIG_PM_SLEEP */
78
79static inline void device_pm_sleep_init(struct device *dev) {}
80
81static inline void device_pm_add(struct device *dev) {}
82
83static inline void device_pm_remove(struct device *dev)
84{
85	pm_runtime_remove(dev);
86}
87
88static inline void device_pm_move_before(struct device *deva,
89					 struct device *devb) {}
90static inline void device_pm_move_after(struct device *deva,
91					struct device *devb) {}
92static inline void device_pm_move_last(struct device *dev) {}
93
94#endif /* !CONFIG_PM_SLEEP */
95
96static inline void device_pm_init(struct device *dev)
97{
98	device_pm_init_common(dev);
99	device_pm_sleep_init(dev);
100	pm_runtime_init(dev);
101}
102