1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/pm_qos.h>
3
device_pm_init_common(struct device * dev)4 static 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
pm_runtime_early_init(struct device * dev)15 static inline void pm_runtime_early_init(struct device *dev)
16 {
17 dev->power.disable_depth = 1;
18 device_pm_init_common(dev);
19 }
20
21 extern void pm_runtime_init(struct device *dev);
22 extern void pm_runtime_reinit(struct device *dev);
23 extern void pm_runtime_remove(struct device *dev);
24 extern 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_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \
29 WAKE_IRQ_DEDICATED_MANAGED)
30
31 struct wake_irq {
32 struct device *dev;
33 unsigned int status;
34 int irq;
35 const char *name;
36 };
37
38 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
39 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
40 extern void dev_pm_enable_wake_irq_check(struct device *dev,
41 bool can_change_status);
42 extern void dev_pm_disable_wake_irq_check(struct device *dev);
43
44 #ifdef CONFIG_PM_SLEEP
45
46 extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
47 extern void device_wakeup_detach_irq(struct device *dev);
48 extern void device_wakeup_arm_wake_irqs(void);
49 extern void device_wakeup_disarm_wake_irqs(void);
50
51 #else
52
device_wakeup_attach_irq(struct device * dev,struct wake_irq * wakeirq)53 static inline void device_wakeup_attach_irq(struct device *dev,
54 struct wake_irq *wakeirq) {}
55
device_wakeup_detach_irq(struct device * dev)56 static inline void device_wakeup_detach_irq(struct device *dev)
57 {
58 }
59
60 #endif /* CONFIG_PM_SLEEP */
61
62 /*
63 * sysfs.c
64 */
65
66 extern int dpm_sysfs_add(struct device *dev);
67 extern void dpm_sysfs_remove(struct device *dev);
68 extern void rpm_sysfs_remove(struct device *dev);
69 extern int wakeup_sysfs_add(struct device *dev);
70 extern void wakeup_sysfs_remove(struct device *dev);
71 extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
72 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
73 extern int pm_qos_sysfs_add_flags(struct device *dev);
74 extern void pm_qos_sysfs_remove_flags(struct device *dev);
75 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
76 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
77
78 #else /* CONFIG_PM */
79
pm_runtime_early_init(struct device * dev)80 static inline void pm_runtime_early_init(struct device *dev)
81 {
82 device_pm_init_common(dev);
83 }
84
pm_runtime_init(struct device * dev)85 static inline void pm_runtime_init(struct device *dev) {}
pm_runtime_reinit(struct device * dev)86 static inline void pm_runtime_reinit(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) {}
91
92 #endif
93
94 #ifdef CONFIG_PM_SLEEP
95
96 /* kernel/power/main.c */
97 extern int pm_async_enabled;
98
99 /* drivers/base/power/main.c */
100 extern struct list_head dpm_list; /* The active device list */
101
to_device(struct list_head * entry)102 static inline struct device *to_device(struct list_head *entry)
103 {
104 return container_of(entry, struct device, power.entry);
105 }
106
107 extern void device_pm_sleep_init(struct device *dev);
108 extern void device_pm_add(struct device *);
109 extern void device_pm_remove(struct device *);
110 extern void device_pm_move_before(struct device *, struct device *);
111 extern void device_pm_move_after(struct device *, struct device *);
112 extern void device_pm_move_last(struct device *);
113 extern void device_pm_check_callbacks(struct device *dev);
114
device_pm_initialized(struct device * dev)115 static inline bool device_pm_initialized(struct device *dev)
116 {
117 return dev->power.in_dpm_list;
118 }
119
120 #else /* !CONFIG_PM_SLEEP */
121
device_pm_sleep_init(struct device * dev)122 static inline void device_pm_sleep_init(struct device *dev) {}
123
device_pm_add(struct device * dev)124 static inline void device_pm_add(struct device *dev) {}
125
device_pm_remove(struct device * dev)126 static inline void device_pm_remove(struct device *dev)
127 {
128 pm_runtime_remove(dev);
129 }
130
device_pm_move_before(struct device * deva,struct device * devb)131 static inline void device_pm_move_before(struct device *deva,
132 struct device *devb) {}
device_pm_move_after(struct device * deva,struct device * devb)133 static inline void device_pm_move_after(struct device *deva,
134 struct device *devb) {}
device_pm_move_last(struct device * dev)135 static inline void device_pm_move_last(struct device *dev) {}
136
device_pm_check_callbacks(struct device * dev)137 static inline void device_pm_check_callbacks(struct device *dev) {}
138
device_pm_initialized(struct device * dev)139 static inline bool device_pm_initialized(struct device *dev)
140 {
141 return device_is_registered(dev);
142 }
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
153 #ifdef CONFIG_PM_SLEEP
154
155 /* drivers/base/power/wakeup_stats.c */
156 extern int wakeup_source_sysfs_add(struct device *parent,
157 struct wakeup_source *ws);
158 extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
159
160 extern int pm_wakeup_source_sysfs_add(struct device *parent);
161
162 #else /* !CONFIG_PM_SLEEP */
163
pm_wakeup_source_sysfs_add(struct device * parent)164 static inline int pm_wakeup_source_sysfs_add(struct device *parent)
165 {
166 return 0;
167 }
168
169 #endif /* CONFIG_PM_SLEEP */
170