projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
nlm: Ensure callback code also checks that the files match
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / pm_runtime.h
CommitLineData
5e928f77
RW		 1/*
2 * pm_runtime.h - Device run-time power management helper functions.
3 *
4 * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>
5 *
6 * This file is released under the GPLv2.
7 */
8
9#ifndef _LINUX_PM_RUNTIME_H
10#define _LINUX_PM_RUNTIME_H
11
12#include <linux/device.h>
246359d3 13#include <linux/notifier.h>
5e928f77
RW		 14#include <linux/pm.h>
15
15bcb91d
AS		 16#include <linux/jiffies.h>
17
3f9af051
AS		 18/* Runtime PM flag argument bits */
19#define RPM_ASYNC 0x01 /* Request is asynchronous */
20#define RPM_NOWAIT 0x02 /* Don't wait for concurrent
21 state change */
140a6c94
AS		 22#define RPM_GET_PUT 0x04 /* Increment/decrement the
23 usage_count */
15bcb91d 24#define RPM_AUTO 0x08 /* Use autosuspend_delay */
3f9af051 25
5e928f77
RW		 26#ifdef CONFIG_PM_RUNTIME
27
28extern struct workqueue_struct *pm_wq;
29
140a6c94
AS		 30extern int __pm_runtime_idle(struct device *dev, int rpmflags);
31extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
32extern int __pm_runtime_resume(struct device *dev, int rpmflags);
5e928f77 33extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
5e928f77
RW		 34extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
35extern int pm_runtime_barrier(struct device *dev);
36extern void pm_runtime_enable(struct device *dev);
37extern void __pm_runtime_disable(struct device *dev, bool check_resume);
53823639
RW		 38extern void pm_runtime_allow(struct device *dev);
39extern void pm_runtime_forbid(struct device *dev);
2f60ba70
RW		 40extern int pm_generic_runtime_idle(struct device *dev);
41extern int pm_generic_runtime_suspend(struct device *dev);
42extern int pm_generic_runtime_resume(struct device *dev);
7490e442 43extern void pm_runtime_no_callbacks(struct device *dev);
c7b61de5 44extern void pm_runtime_irq_safe(struct device *dev);
15bcb91d
AS		 45extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
46extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
47extern unsigned long pm_runtime_autosuspend_expiration(struct device *dev);
00dc9ad1
RW		 48extern void pm_runtime_update_max_time_suspended(struct device *dev,
49 s64 delta_ns);
e823407f 50extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
5e928f77
RW		 51
52static inline bool pm_children_suspended(struct device *dev)
53{
54 return dev->power.ignore_children
55 || !atomic_read(&dev->power.child_count);
56}
57
5e928f77
RW		 58static inline void pm_runtime_get_noresume(struct device *dev)
59{
60 atomic_inc(&dev->power.usage_count);
61}
62
63static inline void pm_runtime_put_noidle(struct device *dev)
64{
65 atomic_add_unless(&dev->power.usage_count, -1, 0);
66}
67
7a1a8eb5
RW		 68static inline bool device_run_wake(struct device *dev)
69{
70 return dev->power.run_wake;
71}
72
73static inline void device_set_run_wake(struct device *dev, bool enable)
74{
75 dev->power.run_wake = enable;
76}
77
d690b2cd
RW		 78static inline bool pm_runtime_suspended(struct device *dev)
79{
f08f5a0a
RW		 80 return dev->power.runtime_status == RPM_SUSPENDED
81 && !dev->power.disable_depth;
d690b2cd
RW		 82}
83
fbadc58d
SL		 84static inline bool pm_runtime_active(struct device *dev)
85{
86 return dev->power.runtime_status == RPM_ACTIVE
87 || dev->power.disable_depth;
88}
89
f3393b62
KH		 90static inline bool pm_runtime_status_suspended(struct device *dev)
91{
92 return dev->power.runtime_status == RPM_SUSPENDED;
93}
94
4b31db8a
RW		 95static inline bool pm_runtime_enabled(struct device *dev)
96{
97 return !dev->power.disable_depth;
98}
99
cb8f51bd
RW		 100static inline bool pm_runtime_callbacks_present(struct device *dev)
101{
102 return !dev->power.no_callbacks;
103}
104
15bcb91d
AS		 105static inline void pm_runtime_mark_last_busy(struct device *dev)
106{
107 ACCESS_ONCE(dev->power.last_busy) = jiffies;
108}
109
5e928f77
RW		 110#else /* !CONFIG_PM_RUNTIME */
111
140a6c94
AS		 112static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
113{
114 return -ENOSYS;
115}
116static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)
117{
118 return -ENOSYS;
119}
120static inline int __pm_runtime_resume(struct device *dev, int rpmflags)
121{
122 return 1;
123}
5e928f77
RW		 124static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
125{
126 return -ENOSYS;
127}
5e928f77
RW		 128static inline int __pm_runtime_set_status(struct device *dev,
129 unsigned int status) { return 0; }
130static inline int pm_runtime_barrier(struct device *dev) { return 0; }
131static inline void pm_runtime_enable(struct device *dev) {}
132static inline void __pm_runtime_disable(struct device *dev, bool c) {}
53823639
RW		 133static inline void pm_runtime_allow(struct device *dev) {}
134static inline void pm_runtime_forbid(struct device *dev) {}
5e928f77
RW		 135
136static inline bool pm_children_suspended(struct device *dev) { return false; }
5e928f77
RW		 137static inline void pm_runtime_get_noresume(struct device *dev) {}
138static inline void pm_runtime_put_noidle(struct device *dev) {}
7a1a8eb5
RW		 139static inline bool device_run_wake(struct device *dev) { return false; }
140static inline void device_set_run_wake(struct device *dev, bool enable) {}
d690b2cd 141static inline bool pm_runtime_suspended(struct device *dev) { return false; }
fbadc58d 142static inline bool pm_runtime_active(struct device *dev) { return true; }
f3393b62 143static inline bool pm_runtime_status_suspended(struct device *dev) { return false; }
4b31db8a 144static inline bool pm_runtime_enabled(struct device *dev) { return false; }
5e928f77 145
2f60ba70
RW		 146static inline int pm_generic_runtime_idle(struct device *dev) { return 0; }
147static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
148static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
7490e442 149static inline void pm_runtime_no_callbacks(struct device *dev) {}
c7b61de5 150static inline void pm_runtime_irq_safe(struct device *dev) {}
2f60ba70 151
cb8f51bd 152static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; }
15bcb91d
AS		 153static inline void pm_runtime_mark_last_busy(struct device *dev) {}
154static inline void __pm_runtime_use_autosuspend(struct device *dev,
155 bool use) {}
156static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
157 int delay) {}
158static inline unsigned long pm_runtime_autosuspend_expiration(
159 struct device *dev) { return 0; }
e823407f
ML		 160static inline void pm_runtime_set_memalloc_noio(struct device *dev,
161 bool enable){}
15bcb91d 162
5e928f77
RW		 163#endif /* !CONFIG_PM_RUNTIME */
164
140a6c94
AS		 165static inline int pm_runtime_idle(struct device *dev)
166{
167 return __pm_runtime_idle(dev, 0);
168}
169
170static inline int pm_runtime_suspend(struct device *dev)
171{
172 return __pm_runtime_suspend(dev, 0);
173}
174
15bcb91d
AS		 175static inline int pm_runtime_autosuspend(struct device *dev)
176{
177 return __pm_runtime_suspend(dev, RPM_AUTO);
178}
179
140a6c94
AS		 180static inline int pm_runtime_resume(struct device *dev)
181{
182 return __pm_runtime_resume(dev, 0);
183}
184
185static inline int pm_request_idle(struct device *dev)
186{
187 return __pm_runtime_idle(dev, RPM_ASYNC);
188}
189
190static inline int pm_request_resume(struct device *dev)
191{
192 return __pm_runtime_resume(dev, RPM_ASYNC);
193}
194
5fc62aad
ML		 195static inline int pm_request_autosuspend(struct device *dev)
196{
197 return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);
198}
199
5e928f77
RW		 200static inline int pm_runtime_get(struct device *dev)
201{
140a6c94 202 return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);
5e928f77
RW		 203}
204
205static inline int pm_runtime_get_sync(struct device *dev)
206{
140a6c94 207 return __pm_runtime_resume(dev, RPM_GET_PUT);
5e928f77
RW		 208}
209
210static inline int pm_runtime_put(struct device *dev)
211{
140a6c94 212 return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
5e928f77
RW		 213}
214
15bcb91d
AS		 215static inline int pm_runtime_put_autosuspend(struct device *dev)
216{
217 return __pm_runtime_suspend(dev,
218 RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
219}
220
5e928f77
RW		 221static inline int pm_runtime_put_sync(struct device *dev)
222{
140a6c94 223 return __pm_runtime_idle(dev, RPM_GET_PUT);
5e928f77
RW		 224}
225
c7b61de5
AS		 226static inline int pm_runtime_put_sync_suspend(struct device *dev)
227{
228 return __pm_runtime_suspend(dev, RPM_GET_PUT);
229}
230
15bcb91d
AS		 231static inline int pm_runtime_put_sync_autosuspend(struct device *dev)
232{
233 return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);
234}
235
5e928f77
RW		 236static inline int pm_runtime_set_active(struct device *dev)
237{
238 return __pm_runtime_set_status(dev, RPM_ACTIVE);
239}
240
241static inline void pm_runtime_set_suspended(struct device *dev)
242{
243 __pm_runtime_set_status(dev, RPM_SUSPENDED);
244}
245
246static inline void pm_runtime_disable(struct device *dev)
247{
248 __pm_runtime_disable(dev, true);
249}
250
15bcb91d
AS		 251static inline void pm_runtime_use_autosuspend(struct device *dev)
252{
253 __pm_runtime_use_autosuspend(dev, true);
254}
255
256static inline void pm_runtime_dont_use_autosuspend(struct device *dev)
257{
258 __pm_runtime_use_autosuspend(dev, false);
259}
260
5e928f77 261#endif
kernel source for telekom puls (alcatel/mediatek)