tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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.power_state = PMSG_INVALID;
8 dev->power.early_init = true;
9 }
10}
11
12#ifdef CONFIG_PM_RUNTIME
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#else /* !CONFIG_PM_RUNTIME */
24
25static inline void pm_runtime_early_init(struct device *dev)
26{
27 device_pm_init_common(dev);
28}
29
30static inline void pm_runtime_init(struct device *dev) {}
31static inline void pm_runtime_remove(struct device *dev) {}
32
33#endif /* !CONFIG_PM_RUNTIME */
34
35#ifdef CONFIG_PM_SLEEP
36
37/* kernel/power/main.c */
38extern int pm_async_enabled;
39
40/* drivers/base/power/main.c */
41extern struct list_head dpm_list; /* The active device list */
42
43static inline struct device *to_device(struct list_head *entry)
44{
45 return container_of(entry, struct device, power.entry);
46}
47
48extern void device_pm_sleep_init(struct device *dev);
49extern void device_pm_add(struct device *);
50extern void device_pm_remove(struct device *);
51extern void device_pm_move_before(struct device *, struct device *);
52extern void device_pm_move_after(struct device *, struct device *);
53extern void device_pm_move_last(struct device *);
54
55#else /* !CONFIG_PM_SLEEP */
56
57static inline void device_pm_sleep_init(struct device *dev) {}
58
59static inline void device_pm_add(struct device *dev)
60{
61 dev_pm_qos_constraints_init(dev);
62}
63
64static inline void device_pm_remove(struct device *dev)
65{
66 dev_pm_qos_constraints_destroy(dev);
67 pm_runtime_remove(dev);
68}
69
70static inline void device_pm_move_before(struct device *deva,
71 struct device *devb) {}
72static inline void device_pm_move_after(struct device *deva,
73 struct device *devb) {}
74static inline void device_pm_move_last(struct device *dev) {}
75
76#endif /* !CONFIG_PM_SLEEP */
77
78static inline void device_pm_init(struct device *dev)
79{
80 device_pm_init_common(dev);
81 device_pm_sleep_init(dev);
82 pm_runtime_init(dev);
83}
84
85#ifdef CONFIG_PM
86
87/*
88 * sysfs.c
89 */
90
91extern int dpm_sysfs_add(struct device *dev);
92extern void dpm_sysfs_remove(struct device *dev);
93extern void rpm_sysfs_remove(struct device *dev);
94extern int wakeup_sysfs_add(struct device *dev);
95extern void wakeup_sysfs_remove(struct device *dev);
96extern int pm_qos_sysfs_add(struct device *dev);
97extern void pm_qos_sysfs_remove(struct device *dev);
98
99#else /* CONFIG_PM */
100
101static inline int dpm_sysfs_add(struct device *dev) { return 0; }
102static inline void dpm_sysfs_remove(struct device *dev) {}
103static inline void rpm_sysfs_remove(struct device *dev) {}
104static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
105static inline void wakeup_sysfs_remove(struct device *dev) {}
106static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
107static inline void pm_qos_sysfs_remove(struct device *dev) {}
108
109#endif