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review.trustedfirmware.org / hafnium / third_party / linux.git / 0f672f6c0b52b7b0700b0915c72b540721af4465 / . / drivers / base / power / power.h
blob: 39a06a0cfdaa82cdf78f43c24dc2db6ea7236d33 [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);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]24extern u64 pm_runtime_active_time(struct device *dev);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]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
31struct wake_irq {
32 struct device *dev;
33 unsigned int status;
34 int irq;
35 const char *name;
36};
37
38extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
39extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
40extern void dev_pm_enable_wake_irq_check(struct device *dev,
41 bool can_change_status);
42extern void dev_pm_disable_wake_irq_check(struct device *dev);
43
44#ifdef CONFIG_PM_SLEEP
45
46extern void device_wakeup_attach_irq(struct device *dev, struct wake_irq *wakeirq);
47extern void device_wakeup_detach_irq(struct device *dev);
48extern void device_wakeup_arm_wake_irqs(void);
49extern void device_wakeup_disarm_wake_irqs(void);
50
51#else
52
53static inline void device_wakeup_attach_irq(struct device *dev,
54 struct wake_irq *wakeirq) {}
55
56static inline void device_wakeup_detach_irq(struct device *dev)
57{
58}
59
60#endif /* CONFIG_PM_SLEEP */
61
62/*
63 * sysfs.c
64 */
65
66extern int dpm_sysfs_add(struct device *dev);
67extern void dpm_sysfs_remove(struct device *dev);
68extern void rpm_sysfs_remove(struct device *dev);
69extern int wakeup_sysfs_add(struct device *dev);
70extern void wakeup_sysfs_remove(struct device *dev);
71extern int pm_qos_sysfs_add_resume_latency(struct device *dev);
72extern void pm_qos_sysfs_remove_resume_latency(struct device *dev);
73extern int pm_qos_sysfs_add_flags(struct device *dev);
74extern void pm_qos_sysfs_remove_flags(struct device *dev);
75extern int pm_qos_sysfs_add_latency_tolerance(struct device *dev);
76extern void pm_qos_sysfs_remove_latency_tolerance(struct device *dev);
77
78#else /* CONFIG_PM */
79
80static inline void pm_runtime_early_init(struct device *dev)
81{
82 device_pm_init_common(dev);
83}
84
85static inline void pm_runtime_init(struct device *dev) {}
86static inline void pm_runtime_reinit(struct device *dev) {}
87static inline void pm_runtime_remove(struct device *dev) {}
88
89static inline int dpm_sysfs_add(struct device *dev) { return 0; }
90static inline void dpm_sysfs_remove(struct device *dev) {}
91
92#endif
93
94#ifdef CONFIG_PM_SLEEP
95
96/* kernel/power/main.c */
97extern int pm_async_enabled;
98
99/* drivers/base/power/main.c */
100extern struct list_head dpm_list; /* The active device list */
101
102static inline struct device *to_device(struct list_head *entry)
103{
104 return container_of(entry, struct device, power.entry);
105}
106
107extern void device_pm_sleep_init(struct device *dev);
108extern void device_pm_add(struct device *);
109extern void device_pm_remove(struct device *);
110extern void device_pm_move_before(struct device *, struct device *);
111extern void device_pm_move_after(struct device *, struct device *);
112extern void device_pm_move_last(struct device *);
113extern void device_pm_check_callbacks(struct device *dev);
114
115static inline bool device_pm_initialized(struct device *dev)
116{
117 return dev->power.in_dpm_list;
118}
119
120#else /* !CONFIG_PM_SLEEP */
121
122static inline void device_pm_sleep_init(struct device *dev) {}
123
124static inline void device_pm_add(struct device *dev) {}
125
126static inline void device_pm_remove(struct device *dev)
127{
128 pm_runtime_remove(dev);
129}
130
131static inline void device_pm_move_before(struct device *deva,
132 struct device *devb) {}
133static inline void device_pm_move_after(struct device *deva,
134 struct device *devb) {}
135static inline void device_pm_move_last(struct device *dev) {}
136
137static inline void device_pm_check_callbacks(struct device *dev) {}
138
139static inline bool device_pm_initialized(struct device *dev)
140{
141 return device_is_registered(dev);
142}
143
144#endif /* !CONFIG_PM_SLEEP */
145
146static 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}
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame^]152
153#ifdef CONFIG_PM_SLEEP
154
155/* drivers/base/power/wakeup_stats.c */
156extern int wakeup_source_sysfs_add(struct device *parent,
157 struct wakeup_source *ws);
158extern void wakeup_source_sysfs_remove(struct wakeup_source *ws);
159
160extern int pm_wakeup_source_sysfs_add(struct device *parent);
161
162#else /* !CONFIG_PM_SLEEP */
163
164static inline int pm_wakeup_source_sysfs_add(struct device *parent)
165{
166 return 0;
167}
168
169#endif /* CONFIG_PM_SLEEP */