diff options
author | Nishanth Menon <nm@ti.com> | 2013-09-19 17:03:52 -0400 |
---|---|---|
committer | Rafael J. Wysocki <rjw@rjwysocki.net> | 2013-10-25 16:33:23 -0400 |
commit | e4db1c7439b31993a4886b273bb9235a8eea82bf (patch) | |
tree | 209058dd30b6793ad2f5598548063d5889b49328 /include/linux/pm_opp.h | |
parent | 47d43ba73eb98d8ba731208735c899129d9849e1 (diff) |
PM / OPP: rename header to linux/pm_opp.h
Since Operating Performance Points (OPP) functions are specific
to device specific power management, be specific and rename opp.h
to pm_opp.h
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_opp.h')
-rw-r--r-- | include/linux/pm_opp.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h new file mode 100644 index 000000000000..5151b0059585 --- /dev/null +++ b/include/linux/pm_opp.h | |||
@@ -0,0 +1,139 @@ | |||
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 | #include <linux/notifier.h> | ||
20 | |||
21 | struct dev_pm_opp; | ||
22 | struct device; | ||
23 | |||
24 | enum dev_pm_opp_event { | ||
25 | OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, | ||
26 | }; | ||
27 | |||
28 | #if defined(CONFIG_PM_OPP) | ||
29 | |||
30 | unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); | ||
31 | |||
32 | unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); | ||
33 | |||
34 | int dev_pm_opp_get_opp_count(struct device *dev); | ||
35 | |||
36 | struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, | ||
37 | unsigned long freq, | ||
38 | bool available); | ||
39 | |||
40 | struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, | ||
41 | unsigned long *freq); | ||
42 | |||
43 | struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, | ||
44 | unsigned long *freq); | ||
45 | |||
46 | int dev_pm_opp_add(struct device *dev, unsigned long freq, | ||
47 | unsigned long u_volt); | ||
48 | |||
49 | int dev_pm_opp_enable(struct device *dev, unsigned long freq); | ||
50 | |||
51 | int dev_pm_opp_disable(struct device *dev, unsigned long freq); | ||
52 | |||
53 | struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); | ||
54 | #else | ||
55 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) | ||
56 | { | ||
57 | return 0; | ||
58 | } | ||
59 | |||
60 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) | ||
61 | { | ||
62 | return 0; | ||
63 | } | ||
64 | |||
65 | static inline int dev_pm_opp_get_opp_count(struct device *dev) | ||
66 | { | ||
67 | return 0; | ||
68 | } | ||
69 | |||
70 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, | ||
71 | unsigned long freq, bool available) | ||
72 | { | ||
73 | return ERR_PTR(-EINVAL); | ||
74 | } | ||
75 | |||
76 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, | ||
77 | unsigned long *freq) | ||
78 | { | ||
79 | return ERR_PTR(-EINVAL); | ||
80 | } | ||
81 | |||
82 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, | ||
83 | unsigned long *freq) | ||
84 | { | ||
85 | return ERR_PTR(-EINVAL); | ||
86 | } | ||
87 | |||
88 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, | ||
89 | unsigned long u_volt) | ||
90 | { | ||
91 | return -EINVAL; | ||
92 | } | ||
93 | |||
94 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) | ||
95 | { | ||
96 | return 0; | ||
97 | } | ||
98 | |||
99 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) | ||
100 | { | ||
101 | return 0; | ||
102 | } | ||
103 | |||
104 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( | ||
105 | struct device *dev) | ||
106 | { | ||
107 | return ERR_PTR(-EINVAL); | ||
108 | } | ||
109 | #endif /* CONFIG_PM_OPP */ | ||
110 | |||
111 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) | ||
112 | int of_init_opp_table(struct device *dev); | ||
113 | #else | ||
114 | static inline int of_init_opp_table(struct device *dev) | ||
115 | { | ||
116 | return -EINVAL; | ||
117 | } | ||
118 | #endif | ||
119 | |||
120 | #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) | ||
121 | int dev_pm_opp_init_cpufreq_table(struct device *dev, | ||
122 | struct cpufreq_frequency_table **table); | ||
123 | void dev_pm_opp_free_cpufreq_table(struct device *dev, | ||
124 | struct cpufreq_frequency_table **table); | ||
125 | #else | ||
126 | static inline int dev_pm_opp_init_cpufreq_table(struct device *dev, | ||
127 | struct cpufreq_frequency_table **table) | ||
128 | { | ||
129 | return -EINVAL; | ||
130 | } | ||
131 | |||
132 | static inline | ||
133 | void dev_pm_opp_free_cpufreq_table(struct device *dev, | ||
134 | struct cpufreq_frequency_table **table) | ||
135 | { | ||
136 | } | ||
137 | #endif /* CONFIG_CPU_FREQ */ | ||
138 | |||
139 | #endif /* __LINUX_OPP_H__ */ | ||