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review.trustedfirmware.org / hafnium / third_party / linux.git / 3a0ad55d848b50499b68d7141d4eca997fce28ef / . / drivers / base / power / power.h
blob: c511def48b48621ba8ed13b84e23d34b1e47a899 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
2#include <linux/pm_qos.h>
3
4static 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
15static inline void pm_runtime_early_init(struct device *dev)
16{
17 dev->power.disable_depth = 1;
18 device_pm_init_common(dev);
19}
20
21extern void pm_runtime_init(struct device *dev);
22extern void pm_runtime_reinit(struct device *dev);
23extern 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
30struct wake_irq {
31 struct device *dev;
32 unsigned int status;
33 int irq;
34 const char *name;
35};
36
37extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
38extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
39extern void dev_pm_enable_wake_irq_check(struct device *dev,
40 bool can_change_status);
41extern void dev_pm_disable_wake_irq_check(struct device *dev);
42
43#ifdef CONFIG_PM_SLEEP
44
45extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
46extern void device_wakeup_detach_irq(struct device *dev);
47extern void device_wakeup_arm_wake_irqs(void);
48extern void device_wakeup_disarm_wake_irqs(void);
49
50#else
51
52static inline void device_wakeup_attach_irq(struct device *dev,
53 struct wake_irq *wakeirq) {}
54
55static inline void device_wakeup_detach_irq(struct device *dev)
56{
57}
58
59#endif /* CONFIG_PM_SLEEP */
60
61/*
62 * sysfs.c
63 */
64
65extern int dpm_sysfs_add(struct device *dev);
66extern void dpm_sysfs_remove(struct device *dev);
67extern void rpm_sysfs_remove(struct device *dev);
68extern int wakeup_sysfs_add(struct device *dev);
69extern void wakeup_sysfs_remove(struct device *dev);
70extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
71extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
72extern int pm_qos_sysfs_add_flags(struct device *dev);
73extern void pm_qos_sysfs_remove_flags(struct device *dev);
74extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
75extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
76
77#else /* CONFIG_PM */
78
79static inline void pm_runtime_early_init(struct device *dev)
80{
81 device_pm_init_common(dev);
82}
83
84static inline void pm_runtime_init(struct device *dev) {}
85static inline void pm_runtime_reinit(struct device *dev) {}
86static inline void pm_runtime_remove(struct device *dev) {}
87
88static inline int dpm_sysfs_add(struct device *dev) { return 0; }
89static inline void dpm_sysfs_remove(struct device *dev) {}
90
91#endif
92
93#ifdef CONFIG_PM_SLEEP
94
95/* kernel/power/main.c */
96extern int pm_async_enabled;
97
98/* drivers/base/power/main.c */
99extern struct list_head dpm_list; /* The active device list */
100
101static inline struct device *to_device(struct list_head *entry)
102{
103 return container_of(entry, struct device, power.entry);
104}
105
106extern void device_pm_sleep_init(struct device *dev);
107extern void device_pm_add(struct device *);
108extern void device_pm_remove(struct device *);
109extern void device_pm_move_before(struct device *, struct device *);
110extern void device_pm_move_after(struct device *, struct device *);
111extern void device_pm_move_last(struct device *);
112extern void device_pm_check_callbacks(struct device *dev);
113
114static inline bool device_pm_initialized(struct device *dev)
115{
116 return dev->power.in_dpm_list;
117}
118
119#else /* !CONFIG_PM_SLEEP */
120
121static inline void device_pm_sleep_init(struct device *dev) {}
122
123static inline void device_pm_add(struct device *dev) {}
124
125static inline void device_pm_remove(struct device *dev)
126{
127 pm_runtime_remove(dev);
128}
129
130static inline void device_pm_move_before(struct device *deva,
131 struct device *devb) {}
132static inline void device_pm_move_after(struct device *deva,
133 struct device *devb) {}
134static inline void device_pm_move_last(struct device *dev) {}
135
136static inline void device_pm_check_callbacks(struct device *dev) {}
137
138static inline bool device_pm_initialized(struct device *dev)
139{
140 return device_is_registered(dev);
141}
142
143#endif /* !CONFIG_PM_SLEEP */
144
145static 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}