diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:53:17 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 17:53:17 -0400 |
commit | a8cbf22559ceefdcdfac00701e8e6da7518b7e8e (patch) | |
tree | 63ebd5779a37f809f7daed77dbf27aa3f1e1110c /include/linux/opp.h | |
parent | e36f561a2c88394ef2708f1ab300fe8a79e9f651 (diff) | |
parent | 9c034392533f3e9f00656d5c58478cff2560ef81 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (26 commits)
PM / Wakeup: Show wakeup sources statistics in debugfs
PM: Introduce library for device-specific OPPs (v7)
PM: Add sysfs attr for rechecking dev hash from PM trace
PM: Lock PM device list mutex in show_dev_hash()
PM / Runtime: Remove idle notification after failing suspend
PM / Hibernate: Modify signature used to mark swap
PM / Runtime: Reduce code duplication in core helper functions
PM: Allow wakeup events to abort freezing of tasks
PM: runtime: add missed pm_request_autosuspend
PM / Hibernate: Make some boot messages look less scary
PM / Runtime: Implement autosuspend support
PM / Runtime: Add no_callbacks flag
PM / Runtime: Combine runtime PM entry points
PM / Runtime: Merge synchronous and async runtime routines
PM / Runtime: Replace boolean arguments with bitflags
PM / Runtime: Move code in drivers/base/power/runtime.c
sysfs: Add sysfs_merge_group() and sysfs_unmerge_group()
PM: Fix potential issue with failing asynchronous suspend
PM / Wakeup: Introduce wakeup source objects and event statistics (v3)
PM: Fix signed/unsigned warning in dpm_show_time()
...
Diffstat (limited to 'include/linux/opp.h')
-rw-r--r-- | include/linux/opp.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/include/linux/opp.h b/include/linux/opp.h new file mode 100644 index 000000000000..5449945d589f --- /dev/null +++ b/include/linux/opp.h | |||
@@ -0,0 +1,105 @@ | |||
1 | /* | ||
2 | * Generic OPP Interface | ||
3 | * | ||
4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated. | ||
5 | * Nishanth Menon | ||
6 | * Romit Dasgupta | ||
7 | * Kevin Hilman | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License version 2 as | ||
11 | * published by the Free Software Foundation. | ||
12 | */ | ||
13 | |||
14 | #ifndef __LINUX_OPP_H__ | ||
15 | #define __LINUX_OPP_H__ | ||
16 | |||
17 | #include <linux/err.h> | ||
18 | #include <linux/cpufreq.h> | ||
19 | |||
20 | struct opp; | ||
21 | |||
22 | #if defined(CONFIG_PM_OPP) | ||
23 | |||
24 | unsigned long opp_get_voltage(struct opp *opp); | ||
25 | |||
26 | unsigned long opp_get_freq(struct opp *opp); | ||
27 | |||
28 | int opp_get_opp_count(struct device *dev); | ||
29 | |||
30 | struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq, | ||
31 | bool available); | ||
32 | |||
33 | struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq); | ||
34 | |||
35 | struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq); | ||
36 | |||
37 | int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt); | ||
38 | |||
39 | int opp_enable(struct device *dev, unsigned long freq); | ||
40 | |||
41 | int opp_disable(struct device *dev, unsigned long freq); | ||
42 | |||
43 | #else | ||
44 | static inline unsigned long opp_get_voltage(struct opp *opp) | ||
45 | { | ||
46 | return 0; | ||
47 | } | ||
48 | |||
49 | static inline unsigned long opp_get_freq(struct opp *opp) | ||
50 | { | ||
51 | return 0; | ||
52 | } | ||
53 | |||
54 | static inline int opp_get_opp_count(struct device *dev) | ||
55 | { | ||
56 | return 0; | ||
57 | } | ||
58 | |||
59 | static inline struct opp *opp_find_freq_exact(struct device *dev, | ||
60 | unsigned long freq, bool available) | ||
61 | { | ||
62 | return ERR_PTR(-EINVAL); | ||
63 | } | ||
64 | |||
65 | static inline struct opp *opp_find_freq_floor(struct device *dev, | ||
66 | unsigned long *freq) | ||
67 | { | ||
68 | return ERR_PTR(-EINVAL); | ||
69 | } | ||
70 | |||
71 | static inline struct opp *opp_find_freq_ceil(struct device *dev, | ||
72 | unsigned long *freq) | ||
73 | { | ||
74 | return ERR_PTR(-EINVAL); | ||
75 | } | ||
76 | |||
77 | static inline int opp_add(struct device *dev, unsigned long freq, | ||
78 | unsigned long u_volt) | ||
79 | { | ||
80 | return -EINVAL; | ||
81 | } | ||
82 | |||
83 | static inline int opp_enable(struct device *dev, unsigned long freq) | ||
84 | { | ||
85 | return 0; | ||
86 | } | ||
87 | |||
88 | static inline int opp_disable(struct device *dev, unsigned long freq) | ||
89 | { | ||
90 | return 0; | ||
91 | } | ||
92 | #endif /* CONFIG_PM */ | ||
93 | |||
94 | #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) | ||
95 | int opp_init_cpufreq_table(struct device *dev, | ||
96 | struct cpufreq_frequency_table **table); | ||
97 | #else | ||
98 | static inline int opp_init_cpufreq_table(struct device *dev, | ||
99 | struct cpufreq_frequency_table **table) | ||
100 | { | ||
101 | return -EINVAL; | ||
102 | } | ||
103 | #endif /* CONFIG_CPU_FREQ */ | ||
104 | |||
105 | #endif /* __LINUX_OPP_H__ */ | ||