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_reinit(struct device *dev);
22 extern void pm_runtime_remove(struct device *dev);
23
24 #define WAKE_IRQ_DEDICATED_ALLOCATED BIT(0)
25 #define WAKE_IRQ_DEDICATED_MANAGED BIT(1)
26 #define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \
27 WAKE_IRQ_DEDICATED_MANAGED)
28
29 struct wake_irq {
30 struct device *dev;
31 unsigned int status;
32 int irq;
33 };
34
35 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
36 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
37 extern void dev_pm_enable_wake_irq_check(struct device *dev,
38 bool can_change_status);
39 extern void dev_pm_disable_wake_irq_check(struct device *dev);
40
41 #ifdef CONFIG_PM_SLEEP
42
43 extern int device_wakeup_attach_irq(struct device *dev,
44 struct wake_irq *wakeirq);
45 extern void device_wakeup_detach_irq(struct device *dev);
46 extern void device_wakeup_arm_wake_irqs(void);
47 extern void device_wakeup_disarm_wake_irqs(void);
48
49 #else
50
51 static inline int
device_wakeup_attach_irq(struct device * dev,struct wake_irq * wakeirq)52 device_wakeup_attach_irq(struct device *dev,
53 struct wake_irq *wakeirq)
54 {
55 return 0;
56 }
57
device_wakeup_detach_irq(struct device * dev)58 static inline void device_wakeup_detach_irq(struct device *dev)
59 {
60 }
61
device_wakeup_arm_wake_irqs(void)62 static inline void device_wakeup_arm_wake_irqs(void)
63 {
64 }
65
device_wakeup_disarm_wake_irqs(void)66 static inline void device_wakeup_disarm_wake_irqs(void)
67 {
68 }
69
70 #endif /* CONFIG_PM_SLEEP */
71
72 /*
73 * sysfs.c
74 */
75
76 extern int dpm_sysfs_add(struct device *dev);
77 extern void dpm_sysfs_remove(struct device *dev);
78 extern void rpm_sysfs_remove(struct device *dev);
79 extern int wakeup_sysfs_add(struct device *dev);
80 extern void wakeup_sysfs_remove(struct device *dev);
81 extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
82 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
83 extern int pm_qos_sysfs_add_flags(struct device *dev);
84 extern void pm_qos_sysfs_remove_flags(struct device *dev);
85 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
86 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
87
88 #else /* CONFIG_PM */
89
pm_runtime_early_init(struct device * dev)90 static inline void pm_runtime_early_init(struct device *dev)
91 {
92 device_pm_init_common(dev);
93 }
94
pm_runtime_init(struct device * dev)95 static inline void pm_runtime_init(struct device *dev) {}
pm_runtime_reinit(struct device * dev)96 static inline void pm_runtime_reinit(struct device *dev) {}
pm_runtime_remove(struct device * dev)97 static inline void pm_runtime_remove(struct device *dev) {}
98
dpm_sysfs_add(struct device * dev)99 static inline int dpm_sysfs_add(struct device *dev) { return 0; }
dpm_sysfs_remove(struct device * dev)100 static inline void dpm_sysfs_remove(struct device *dev) {}
rpm_sysfs_remove(struct device * dev)101 static inline void rpm_sysfs_remove(struct device *dev) {}
wakeup_sysfs_add(struct device * dev)102 static inline int wakeup_sysfs_add(struct device *dev) { return 0; }
wakeup_sysfs_remove(struct device * dev)103 static inline void wakeup_sysfs_remove(struct device *dev) {}
pm_qos_sysfs_add(struct device * dev)104 static inline int pm_qos_sysfs_add(struct device *dev) { return 0; }
pm_qos_sysfs_remove(struct device * dev)105 static inline void pm_qos_sysfs_remove(struct device *dev) {}
106
dev_pm_arm_wake_irq(struct wake_irq * wirq)107 static inline void dev_pm_arm_wake_irq(struct wake_irq *wirq)
108 {
109 }
110
dev_pm_disarm_wake_irq(struct wake_irq * wirq)111 static inline void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
112 {
113 }
114
dev_pm_enable_wake_irq_check(struct device * dev,bool can_change_status)115 static inline void dev_pm_enable_wake_irq_check(struct device *dev,
116 bool can_change_status)
117 {
118 }
119
dev_pm_disable_wake_irq_check(struct device * dev)120 static inline void dev_pm_disable_wake_irq_check(struct device *dev)
121 {
122 }
123
124 #endif
125
126 #ifdef CONFIG_PM_SLEEP
127
128 /* kernel/power/main.c */
129 extern int pm_async_enabled;
130
131 /* drivers/base/power/main.c */
132 extern struct list_head dpm_list; /* The active device list */
133
to_device(struct list_head * entry)134 static inline struct device *to_device(struct list_head *entry)
135 {
136 return container_of(entry, struct device, power.entry);
137 }
138
139 extern void device_pm_sleep_init(struct device *dev);
140 extern void device_pm_add(struct device *);
141 extern void device_pm_remove(struct device *);
142 extern void device_pm_move_before(struct device *, struct device *);
143 extern void device_pm_move_after(struct device *, struct device *);
144 extern void device_pm_move_last(struct device *);
145 extern void device_pm_check_callbacks(struct device *dev);
146
147 #else /* !CONFIG_PM_SLEEP */
148
device_pm_sleep_init(struct device * dev)149 static inline void device_pm_sleep_init(struct device *dev) {}
150
device_pm_add(struct device * dev)151 static inline void device_pm_add(struct device *dev) {}
152
device_pm_remove(struct device * dev)153 static inline void device_pm_remove(struct device *dev)
154 {
155 pm_runtime_remove(dev);
156 }
157
device_pm_move_before(struct device * deva,struct device * devb)158 static inline void device_pm_move_before(struct device *deva,
159 struct device *devb) {}
device_pm_move_after(struct device * deva,struct device * devb)160 static inline void device_pm_move_after(struct device *deva,
161 struct device *devb) {}
device_pm_move_last(struct device * dev)162 static inline void device_pm_move_last(struct device *dev) {}
163
device_pm_check_callbacks(struct device * dev)164 static inline void device_pm_check_callbacks(struct device *dev) {}
165
166 #endif /* !CONFIG_PM_SLEEP */
167
device_pm_init(struct device * dev)168 static inline void device_pm_init(struct device *dev)
169 {
170 device_pm_init_common(dev);
171 device_pm_sleep_init(dev);
172 pm_runtime_init(dev);
173 }
174