Commit | Line | Data |
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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); |
655c9df9 | 37 | unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev); |
21743447 | 38 | unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev); |
4eafbd15 | 39 | struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); |
e1f60b29 | 40 | |
47d43ba7 NM |
41 | struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
42 | unsigned long freq, | |
43 | bool available); | |
e1f60b29 | 44 | |
47d43ba7 NM |
45 | struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
46 | unsigned long *freq); | |
e1f60b29 | 47 | |
47d43ba7 NM |
48 | struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
49 | unsigned long *freq); | |
e1f60b29 | 50 | |
5d4879cd NM |
51 | int dev_pm_opp_add(struct device *dev, unsigned long freq, |
52 | unsigned long u_volt); | |
129eec55 | 53 | void dev_pm_opp_remove(struct device *dev, unsigned long freq); |
e1f60b29 | 54 | |
5d4879cd | 55 | int dev_pm_opp_enable(struct device *dev, unsigned long freq); |
e1f60b29 | 56 | |
5d4879cd | 57 | int dev_pm_opp_disable(struct device *dev, unsigned long freq); |
e1f60b29 | 58 | |
5d4879cd | 59 | struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); |
7de36b0a VK |
60 | int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, |
61 | unsigned int count); | |
62 | void dev_pm_opp_put_supported_hw(struct device *dev); | |
01fb4d3c VK |
63 | int dev_pm_opp_set_prop_name(struct device *dev, const char *name); |
64 | void dev_pm_opp_put_prop_name(struct device *dev); | |
9f8ea969 VK |
65 | int dev_pm_opp_set_regulator(struct device *dev, const char *name); |
66 | void dev_pm_opp_put_regulator(struct device *dev); | |
6a0712f6 | 67 | int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); |
642aa8ce | 68 | int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); |
e1f60b29 | 69 | #else |
47d43ba7 | 70 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) |
e1f60b29 NM |
71 | { |
72 | return 0; | |
73 | } | |
74 | ||
47d43ba7 | 75 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) |
e1f60b29 NM |
76 | { |
77 | return 0; | |
78 | } | |
79 | ||
19445b25 BZ |
80 | static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp) |
81 | { | |
82 | return false; | |
83 | } | |
84 | ||
5d4879cd | 85 | static inline int dev_pm_opp_get_opp_count(struct device *dev) |
e1f60b29 NM |
86 | { |
87 | return 0; | |
88 | } | |
89 | ||
3ca9bb33 VK |
90 | static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) |
91 | { | |
92 | return 0; | |
93 | } | |
94 | ||
655c9df9 VK |
95 | static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) |
96 | { | |
97 | return 0; | |
98 | } | |
99 | ||
21743447 VK |
100 | static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev) |
101 | { | |
102 | return 0; | |
103 | } | |
104 | ||
4eafbd15 BZ |
105 | static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) |
106 | { | |
107 | return NULL; | |
108 | } | |
109 | ||
47d43ba7 | 110 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
e1f60b29 NM |
111 | unsigned long freq, bool available) |
112 | { | |
113 | return ERR_PTR(-EINVAL); | |
114 | } | |
115 | ||
47d43ba7 | 116 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
e1f60b29 NM |
117 | unsigned long *freq) |
118 | { | |
119 | return ERR_PTR(-EINVAL); | |
120 | } | |
121 | ||
47d43ba7 | 122 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
e1f60b29 NM |
123 | unsigned long *freq) |
124 | { | |
125 | return ERR_PTR(-EINVAL); | |
126 | } | |
127 | ||
5d4879cd | 128 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, |
e1f60b29 NM |
129 | unsigned long u_volt) |
130 | { | |
131 | return -EINVAL; | |
132 | } | |
133 | ||
129eec55 VK |
134 | static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq) |
135 | { | |
136 | } | |
137 | ||
5d4879cd | 138 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
139 | { |
140 | return 0; | |
141 | } | |
142 | ||
5d4879cd | 143 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
144 | { |
145 | return 0; | |
146 | } | |
03ca370f | 147 | |
5d4879cd NM |
148 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( |
149 | struct device *dev) | |
03ca370f MH |
150 | { |
151 | return ERR_PTR(-EINVAL); | |
152 | } | |
7de36b0a VK |
153 | |
154 | static inline int dev_pm_opp_set_supported_hw(struct device *dev, | |
155 | const u32 *versions, | |
156 | unsigned int count) | |
157 | { | |
158 | return -EINVAL; | |
159 | } | |
160 | ||
161 | static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} | |
162 | ||
01fb4d3c VK |
163 | static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) |
164 | { | |
165 | return -EINVAL; | |
166 | } | |
167 | ||
168 | static inline void dev_pm_opp_put_prop_name(struct device *dev) {} | |
169 | ||
9f8ea969 VK |
170 | static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) |
171 | { | |
172 | return -EINVAL; | |
173 | } | |
174 | ||
175 | static inline void dev_pm_opp_put_regulator(struct device *dev) {} | |
176 | ||
6a0712f6 VK |
177 | static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) |
178 | { | |
179 | return -EINVAL; | |
180 | } | |
181 | ||
642aa8ce VK |
182 | static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
183 | { | |
184 | return -ENOSYS; | |
185 | } | |
186 | ||
a96d69d1 | 187 | #endif /* CONFIG_PM_OPP */ |
e1f60b29 | 188 | |
d6561bb2 | 189 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) |
8f8d37b2 VK |
190 | int dev_pm_opp_of_add_table(struct device *dev); |
191 | void dev_pm_opp_of_remove_table(struct device *dev); | |
192 | int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask); | |
193 | void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask); | |
194 | int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); | |
d6561bb2 | 195 | #else |
8f8d37b2 | 196 | static inline int dev_pm_opp_of_add_table(struct device *dev) |
d6561bb2 SG |
197 | { |
198 | return -EINVAL; | |
199 | } | |
129eec55 | 200 | |
8f8d37b2 | 201 | static inline void dev_pm_opp_of_remove_table(struct device *dev) |
129eec55 VK |
202 | { |
203 | } | |
8d4d4e98 | 204 | |
8f8d37b2 | 205 | static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
206 | { |
207 | return -ENOSYS; | |
208 | } | |
209 | ||
8f8d37b2 | 210 | static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
211 | { |
212 | } | |
213 | ||
8f8d37b2 | 214 | static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
8d4d4e98 VK |
215 | { |
216 | return -ENOSYS; | |
217 | } | |
d6561bb2 SG |
218 | #endif |
219 | ||
e1f60b29 | 220 | #endif /* __LINUX_OPP_H__ */ |