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