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_REVERSE BIT(2)
29 #define WAKE_IRQ_DEDICATED_MASK (WAKE_IRQ_DEDICATED_ALLOCATED | \
30 WAKE_IRQ_DEDICATED_MANAGED | \
31 WAKE_IRQ_DEDICATED_REVERSE)
32 #define WAKE_IRQ_DEDICATED_ENABLED BIT(3)
33
34 struct wake_irq {
35 struct device *dev;
36 unsigned int status;
37 int irq;
38 const char *name;
39 };
40
41 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
42 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
43 extern void dev_pm_enable_wake_irq_check(struct device *dev,
44 bool can_change_status);
45 extern void dev_pm_disable_wake_irq_check(struct device *dev, bool cond_disable);
46 extern void dev_pm_enable_wake_irq_complete(struct device *dev);
47
48 #ifdef CONFIG_PM_SLEEP
49
50 extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
51 extern void device_wakeup_detach_irq(struct device *dev);
52 extern void device_wakeup_arm_wake_irqs(void);
53 extern void device_wakeup_disarm_wake_irqs(void);
54
55 #else
56
device_wakeup_attach_irq(struct device * dev,struct wake_irq * wakeirq)57 static inline void device_wakeup_attach_irq(struct device *dev,
58 struct wake_irq *wakeirq) {}
59
device_wakeup_detach_irq(struct device * dev)60 static inline void device_wakeup_detach_irq(struct device *dev)
61 {
62 }
63
64 #endif /* CONFIG_PM_SLEEP */
65
66 /*
67 * sysfs.c
68 */
69
70 extern int dpm_sysfs_add(struct device *dev);
71 extern void dpm_sysfs_remove(struct device *dev);
72 extern void rpm_sysfs_remove(struct device *dev);
73 extern int wakeup_sysfs_add(struct device *dev);
74 extern void wakeup_sysfs_remove(struct device *dev);
75 extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
76 extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
77 extern int pm_qos_sysfs_add_flags(struct device *dev);
78 extern void pm_qos_sysfs_remove_flags(struct device *dev);
79 extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
80 extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
81
82 #else /* CONFIG_PM */
83
pm_runtime_early_init(struct device * dev)84 static inline void pm_runtime_early_init(struct device *dev)
85 {
86 device_pm_init_common(dev);
87 }
88
pm_runtime_init(struct device * dev)89 static inline void pm_runtime_init(struct device *dev) {}
pm_runtime_reinit(struct device * dev)90 static inline void pm_runtime_reinit(struct device *dev) {}
pm_runtime_remove(struct device * dev)91 static inline void pm_runtime_remove(struct device *dev) {}
92
dpm_sysfs_add(struct device * dev)93 static inline int dpm_sysfs_add(struct device *dev) { return 0; }
dpm_sysfs_remove(struct device * dev)94 static inline void dpm_sysfs_remove(struct device *dev) {}
95
96 #endif
97
98 #ifdef CONFIG_PM_SLEEP
99
100 /* kernel/power/main.c */
101 extern int pm_async_enabled;
102
103 /* drivers/base/power/main.c */
104 extern struct list_head dpm_list; /* The active device list */
105
to_device(struct list_head * entry)106 static inline struct device *to_device(struct list_head *entry)
107 {
108 return container_of(entry, struct device, power.entry);
109 }
110
111 extern void device_pm_sleep_init(struct device *dev);
112 extern void device_pm_add(struct device *);
113 extern void device_pm_remove(struct device *);
114 extern void device_pm_move_before(struct device *, struct device *);
115 extern void device_pm_move_after(struct device *, struct device *);
116 extern void device_pm_move_last(struct device *);
117 extern void device_pm_check_callbacks(struct device *dev);
118
device_pm_initialized(struct device * dev)119 static inline bool device_pm_initialized(struct device *dev)
120 {
121 return dev->power.in_dpm_list;
122 }
123
124 #else /* !CONFIG_PM_SLEEP */
125
device_pm_sleep_init(struct device * dev)126 static inline void device_pm_sleep_init(struct device *dev) {}
127
device_pm_add(struct device * dev)128 static inline void device_pm_add(struct device *dev) {}
129
device_pm_remove(struct device * dev)130 static inline void device_pm_remove(struct device *dev)
131 {
132 pm_runtime_remove(dev);
133 }
134
device_pm_move_before(struct device * deva,struct device * devb)135 static inline void device_pm_move_before(struct device *deva,
136 struct device *devb) {}
device_pm_move_after(struct device * deva,struct device * devb)137 static inline void device_pm_move_after(struct device *deva,
138 struct device *devb) {}
device_pm_move_last(struct device * dev)139 static inline void device_pm_move_last(struct device *dev) {}
140
device_pm_check_callbacks(struct device * dev)141 static inline void device_pm_check_callbacks(struct device *dev) {}
142
device_pm_initialized(struct device * dev)143 static inline bool device_pm_initialized(struct device *dev)
144 {
145 return device_is_registered(dev);
146 }
147
148 #endif /* !CONFIG_PM_SLEEP */
149
device_pm_init(struct device * dev)150 static inline void device_pm_init(struct device *dev)
151 {
152 device_pm_init_common(dev);
153 device_pm_sleep_init(dev);
154 pm_runtime_init(dev);
155 }
156
157 #ifdef CONFIG_PM_SLEEP
158
159 /* drivers/base/power/wakeup_stats.c */
160 extern int wakeup_source_sysfs_add(struct device *parent,
161 struct wakeup_source *ws);
162 extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
163
164 extern int pm_wakeup_source_sysfs_add(struct device *parent);
165
166 #else /* !CONFIG_PM_SLEEP */
167
pm_wakeup_source_sysfs_add(struct device * parent)168 static inline int pm_wakeup_source_sysfs_add(struct device *parent)
169 {
170 return 0;
171 }
172
173 #endif /* CONFIG_PM_SLEEP */
174