Commit | Line | Data |
---|---|---|
e1f60b29 NM |
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> | |
03ca370f | 18 | #include <linux/notifier.h> |
e1f60b29 | 19 | |
47d43ba7 | 20 | struct dev_pm_opp; |
313162d0 | 21 | struct device; |
e1f60b29 | 22 | |
47d43ba7 | 23 | enum dev_pm_opp_event { |
129eec55 | 24 | OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, |
03ca370f MH |
25 | }; |
26 | ||
e1f60b29 NM |
27 | #if defined(CONFIG_PM_OPP) |
28 | ||
47d43ba7 | 29 | unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); |
e1f60b29 | 30 | |
47d43ba7 | 31 | unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); |
e1f60b29 | 32 | |
19445b25 BZ |
33 | bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); |
34 | ||
5d4879cd | 35 | int dev_pm_opp_get_opp_count(struct device *dev); |
3ca9bb33 | 36 | unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); |
4eafbd15 | 37 | struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); |
e1f60b29 | 38 | |
47d43ba7 NM |
39 | struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
40 | unsigned long freq, | |
41 | bool available); | |
e1f60b29 | 42 | |
47d43ba7 NM |
43 | struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
44 | unsigned long *freq); | |
e1f60b29 | 45 | |
47d43ba7 NM |
46 | struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
47 | unsigned long *freq); | |
e1f60b29 | 48 | |
5d4879cd NM |
49 | int dev_pm_opp_add(struct device *dev, unsigned long freq, |
50 | unsigned long u_volt); | |
129eec55 | 51 | void dev_pm_opp_remove(struct device *dev, unsigned long freq); |
e1f60b29 | 52 | |
5d4879cd | 53 | int dev_pm_opp_enable(struct device *dev, unsigned long freq); |
e1f60b29 | 54 | |
5d4879cd | 55 | int dev_pm_opp_disable(struct device *dev, unsigned long freq); |
e1f60b29 | 56 | |
5d4879cd | 57 | struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); |
e1f60b29 | 58 | #else |
47d43ba7 | 59 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) |
e1f60b29 NM |
60 | { |
61 | return 0; | |
62 | } | |
63 | ||
47d43ba7 | 64 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) |
e1f60b29 NM |
65 | { |
66 | return 0; | |
67 | } | |
68 | ||
19445b25 BZ |
69 | static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp) |
70 | { | |
71 | return false; | |
72 | } | |
73 | ||
5d4879cd | 74 | static inline int dev_pm_opp_get_opp_count(struct device *dev) |
e1f60b29 NM |
75 | { |
76 | return 0; | |
77 | } | |
78 | ||
3ca9bb33 VK |
79 | static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) |
80 | { | |
81 | return 0; | |
82 | } | |
83 | ||
4eafbd15 BZ |
84 | static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) |
85 | { | |
86 | return NULL; | |
87 | } | |
88 | ||
47d43ba7 | 89 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
e1f60b29 NM |
90 | unsigned long freq, bool available) |
91 | { | |
92 | return ERR_PTR(-EINVAL); | |
93 | } | |
94 | ||
47d43ba7 | 95 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
e1f60b29 NM |
96 | unsigned long *freq) |
97 | { | |
98 | return ERR_PTR(-EINVAL); | |
99 | } | |
100 | ||
47d43ba7 | 101 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
e1f60b29 NM |
102 | unsigned long *freq) |
103 | { | |
104 | return ERR_PTR(-EINVAL); | |
105 | } | |
106 | ||
5d4879cd | 107 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, |
e1f60b29 NM |
108 | unsigned long u_volt) |
109 | { | |
110 | return -EINVAL; | |
111 | } | |
112 | ||
129eec55 VK |
113 | static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq) |
114 | { | |
115 | } | |
116 | ||
5d4879cd | 117 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
118 | { |
119 | return 0; | |
120 | } | |
121 | ||
5d4879cd | 122 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
123 | { |
124 | return 0; | |
125 | } | |
03ca370f | 126 | |
5d4879cd NM |
127 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( |
128 | struct device *dev) | |
03ca370f MH |
129 | { |
130 | return ERR_PTR(-EINVAL); | |
131 | } | |
a96d69d1 | 132 | #endif /* CONFIG_PM_OPP */ |
e1f60b29 | 133 | |
d6561bb2 | 134 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) |
8f8d37b2 VK |
135 | int dev_pm_opp_of_add_table(struct device *dev); |
136 | void dev_pm_opp_of_remove_table(struct device *dev); | |
137 | int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask); | |
138 | void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask); | |
139 | int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); | |
140 | int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); | |
d6561bb2 | 141 | #else |
8f8d37b2 | 142 | static inline int dev_pm_opp_of_add_table(struct device *dev) |
d6561bb2 SG |
143 | { |
144 | return -EINVAL; | |
145 | } | |
129eec55 | 146 | |
8f8d37b2 | 147 | static inline void dev_pm_opp_of_remove_table(struct device *dev) |
129eec55 VK |
148 | { |
149 | } | |
8d4d4e98 | 150 | |
8f8d37b2 | 151 | static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
152 | { |
153 | return -ENOSYS; | |
154 | } | |
155 | ||
8f8d37b2 | 156 | static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
157 | { |
158 | } | |
159 | ||
8f8d37b2 | 160 | static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
8d4d4e98 VK |
161 | { |
162 | return -ENOSYS; | |
163 | } | |
164 | ||
8f8d37b2 | 165 | static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
8d4d4e98 VK |
166 | { |
167 | return -ENOSYS; | |
168 | } | |
d6561bb2 SG |
169 | #endif |
170 | ||
e1f60b29 | 171 | #endif /* __LINUX_OPP_H__ */ |