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