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); |
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); |
ddbb74bc AB |
68 | int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask); |
69 | int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); | |
411466c5 SH |
70 | void dev_pm_opp_remove_table(struct device *dev); |
71 | void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask); | |
e1f60b29 | 72 | #else |
47d43ba7 | 73 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) |
e1f60b29 NM |
74 | { |
75 | return 0; | |
76 | } | |
77 | ||
47d43ba7 | 78 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) |
e1f60b29 NM |
79 | { |
80 | return 0; | |
81 | } | |
82 | ||
19445b25 BZ |
83 | static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp) |
84 | { | |
85 | return false; | |
86 | } | |
87 | ||
5d4879cd | 88 | static inline int dev_pm_opp_get_opp_count(struct device *dev) |
e1f60b29 NM |
89 | { |
90 | return 0; | |
91 | } | |
92 | ||
3ca9bb33 VK |
93 | static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) |
94 | { | |
95 | return 0; | |
96 | } | |
97 | ||
655c9df9 VK |
98 | static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) |
99 | { | |
100 | return 0; | |
101 | } | |
102 | ||
21743447 VK |
103 | static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev) |
104 | { | |
105 | return 0; | |
106 | } | |
107 | ||
4eafbd15 BZ |
108 | static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) |
109 | { | |
110 | return NULL; | |
111 | } | |
112 | ||
47d43ba7 | 113 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
e1f60b29 NM |
114 | unsigned long freq, bool available) |
115 | { | |
d708b384 | 116 | return ERR_PTR(-ENOTSUPP); |
e1f60b29 NM |
117 | } |
118 | ||
47d43ba7 | 119 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
e1f60b29 NM |
120 | unsigned long *freq) |
121 | { | |
d708b384 | 122 | return ERR_PTR(-ENOTSUPP); |
e1f60b29 NM |
123 | } |
124 | ||
47d43ba7 | 125 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
e1f60b29 NM |
126 | unsigned long *freq) |
127 | { | |
d708b384 | 128 | return ERR_PTR(-ENOTSUPP); |
e1f60b29 NM |
129 | } |
130 | ||
5d4879cd | 131 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, |
e1f60b29 NM |
132 | unsigned long u_volt) |
133 | { | |
d708b384 | 134 | return -ENOTSUPP; |
e1f60b29 NM |
135 | } |
136 | ||
129eec55 VK |
137 | static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq) |
138 | { | |
139 | } | |
140 | ||
5d4879cd | 141 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
142 | { |
143 | return 0; | |
144 | } | |
145 | ||
5d4879cd | 146 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
147 | { |
148 | return 0; | |
149 | } | |
03ca370f | 150 | |
5d4879cd NM |
151 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( |
152 | struct device *dev) | |
03ca370f | 153 | { |
d708b384 | 154 | return ERR_PTR(-ENOTSUPP); |
03ca370f | 155 | } |
7de36b0a VK |
156 | |
157 | static inline int dev_pm_opp_set_supported_hw(struct device *dev, | |
158 | const u32 *versions, | |
159 | unsigned int count) | |
160 | { | |
d708b384 | 161 | return -ENOTSUPP; |
7de36b0a VK |
162 | } |
163 | ||
164 | static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} | |
165 | ||
01fb4d3c VK |
166 | static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) |
167 | { | |
d708b384 | 168 | return -ENOTSUPP; |
01fb4d3c VK |
169 | } |
170 | ||
171 | static inline void dev_pm_opp_put_prop_name(struct device *dev) {} | |
172 | ||
9f8ea969 VK |
173 | static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) |
174 | { | |
d708b384 | 175 | return -ENOTSUPP; |
9f8ea969 VK |
176 | } |
177 | ||
178 | static inline void dev_pm_opp_put_regulator(struct device *dev) {} | |
179 | ||
6a0712f6 VK |
180 | static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) |
181 | { | |
d708b384 | 182 | return -ENOTSUPP; |
6a0712f6 VK |
183 | } |
184 | ||
ddbb74bc | 185 | static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask) |
642aa8ce | 186 | { |
d708b384 | 187 | return -ENOTSUPP; |
642aa8ce VK |
188 | } |
189 | ||
ddbb74bc | 190 | static inline int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) |
6f707daa VK |
191 | { |
192 | return -EINVAL; | |
193 | } | |
194 | ||
411466c5 SH |
195 | static inline void dev_pm_opp_remove_table(struct device *dev) |
196 | { | |
197 | } | |
198 | ||
199 | static inline void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask) | |
200 | { | |
201 | } | |
202 | ||
a96d69d1 | 203 | #endif /* CONFIG_PM_OPP */ |
e1f60b29 | 204 | |
d6561bb2 | 205 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) |
8f8d37b2 VK |
206 | int dev_pm_opp_of_add_table(struct device *dev); |
207 | void dev_pm_opp_of_remove_table(struct device *dev); | |
ddbb74bc AB |
208 | int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask); |
209 | void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask); | |
210 | int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); | |
d6561bb2 | 211 | #else |
8f8d37b2 | 212 | static inline int dev_pm_opp_of_add_table(struct device *dev) |
d6561bb2 | 213 | { |
d708b384 | 214 | return -ENOTSUPP; |
d6561bb2 | 215 | } |
129eec55 | 216 | |
8f8d37b2 | 217 | static inline void dev_pm_opp_of_remove_table(struct device *dev) |
129eec55 VK |
218 | { |
219 | } | |
8d4d4e98 | 220 | |
ddbb74bc | 221 | static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask) |
8d4d4e98 | 222 | { |
d708b384 | 223 | return -ENOTSUPP; |
8d4d4e98 VK |
224 | } |
225 | ||
ddbb74bc | 226 | static inline void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask) |
8d4d4e98 VK |
227 | { |
228 | } | |
229 | ||
ddbb74bc | 230 | static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) |
8d4d4e98 | 231 | { |
d708b384 | 232 | return -ENOTSUPP; |
8d4d4e98 | 233 | } |
d6561bb2 SG |
234 | #endif |
235 | ||
e1f60b29 | 236 | #endif /* __LINUX_OPP_H__ */ |