1 #include <linux/pm_qos.h>
2
device_pm_init_common(struct device * dev)3 static 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
pm_runtime_early_init(struct device * dev)14 static inline void pm_runtime_early_init(struct device *dev)
15 {
16 dev->power.disable_depth = 1;
17 device_pm_init_common(dev);
18 }
19
20 extern void pm_runtime_init(struct device *dev);
21 extern void pm_runtime_remove(struct device *dev);
22
23 struct wake_irq {
24 struct device *dev;
25 int irq;
26 bool dedicated_irq:1;
27 };
28
29 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
30 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
31
32 #ifdef CONFIG_PM_SLEEP
33
34 extern int device_wakeup_attach_irq(struct device *dev,
35 struct wake_irq *wakeirq);
36 extern void device_wakeup_detach_irq(struct device *dev);
37 extern void device_wakeup_arm_wake_irqs(void);
38 extern void device_wakeup_disarm_wake_irqs(void);
39
40 #else
41
42 static inline int
device_wakeup_attach_irq(struct device * dev,struct wake_irq * wakeirq)43 device_wakeup_attach_irq(struct device *dev,
44 struct wake_irq *wakeirq)
45 {
46 return 0;
47 }
48
device_wakeup_detach_irq(struct device * dev)49 static inline void device_wakeup_detach_irq(struct device *dev)
50 {
51 }
52
device_wakeup_arm_wake_irqs(void)53 static inline void device_wakeup_arm_wake_irqs(void)
54 {
55 }
56
device_wakeup_disarm_wake_irqs(void)57 static inline void device_wakeup_disarm_wake_irqs(void)
58 {
59 }
60
61 #endif /* CONFIG_PM_SLEEP */
62
63 /*
64 * sysfs.c
65 */
66
67 extern int dpm_sysfs_add(struct device *dev);
68 extern void dpm_sysfs_remove(struct device *dev);
69 extern void rpm_sysfs_remove(struct device *dev);
70 extern int wakeup_sysfs_add(struct device *dev);
71 extern void wakeup_sysfs_remove(struct device *dev);
72 extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
73 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
74 extern int pm_qos_sysfs_add_flags(struct device *dev);
75 extern void pm_qos_sysfs_remove_flags(struct device *dev);
76 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
77 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
78
79 #else /* CONFIG_PM */
80
pm_runtime_early_init(struct device * dev)81 static inline void pm_runtime_early_init(struct device *dev)
82 {
83 device_pm_init_common(dev);
84 }
85
pm_runtime_init(struct device * dev)86 static inline void pm_runtime_init(struct device *dev) {}
pm_runtime_remove(struct device * dev)87 static inline void pm_runtime_remove(struct device *dev) {}
88
dpm_sysfs_add(struct device * dev)89 static inline int dpm_sysfs_add(struct device *dev) { return 0; }
dpm_sysfs_remove(struct device * dev)90 static inline void dpm_sysfs_remove(struct device *dev) {}
rpm_sysfs_remove(struct device * dev)91 static inline void rpm_sysfs_remove(struct device *dev) {}
wakeup_sysfs_add(struct device * dev)92 static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
wakeup_sysfs_remove(struct device * dev)93 static inline void wakeup_sysfs_remove(struct device *dev) {}
pm_qos_sysfs_add(struct device * dev)94 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
pm_qos_sysfs_remove(struct device * dev)95 static inline void pm_qos_sysfs_remove(struct device *dev) {}
96
dev_pm_arm_wake_irq(struct wake_irq * wirq)97 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq)
98 {
99 }
100
dev_pm_disarm_wake_irq(struct wake_irq * wirq)101 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
102 {
103 }
104
105 #endif
106
107 #ifdef CONFIG_PM_SLEEP
108
109 /* kernel/power/main.c */
110 extern int pm_async_enabled;
111
112 /* drivers/base/power/main.c */
113 extern struct list_head dpm_list; /* The active device list */
114
to_device(struct list_head * entry)115 static inline struct device *to_device(struct list_head *entry)
116 {
117 return container_of(entry, struct device, power.entry);
118 }
119
120 extern void device_pm_sleep_init(struct device *dev);
121 extern void device_pm_add(struct device *);
122 extern void device_pm_remove(struct device *);
123 extern void device_pm_move_before(struct device *, struct device *);
124 extern void device_pm_move_after(struct device *, struct device *);
125 extern void device_pm_move_last(struct device *);
126
127 #else /* !CONFIG_PM_SLEEP */
128
device_pm_sleep_init(struct device * dev)129 static inline void device_pm_sleep_init(struct device *dev) {}
130
device_pm_add(struct device * dev)131 static inline void device_pm_add(struct device *dev) {}
132
device_pm_remove(struct device * dev)133 static inline void device_pm_remove(struct device *dev)
134 {
135 pm_runtime_remove(dev);
136 }
137
device_pm_move_before(struct device * deva,struct device * devb)138 static inline void device_pm_move_before(struct device *deva,
139 struct device *devb) {}
device_pm_move_after(struct device * deva,struct device * devb)140 static inline void device_pm_move_after(struct device *deva,
141 struct device *devb) {}
device_pm_move_last(struct device * dev)142 static inline void device_pm_move_last(struct device *dev) {}
143
144 #endif /* !CONFIG_PM_SLEEP */
145
device_pm_init(struct device * dev)146 static inline void device_pm_init(struct device *dev)
147 {
148 device_pm_init_common(dev);
149 device_pm_sleep_init(dev);
150 pm_runtime_init(dev);
151 }
152