2 * Generic OPP Interface
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
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.
14 #ifndef __LINUX_OPP_H__
15 #define __LINUX_OPP_H__
17 #include <linux/err.h>
18 #include <linux/notifier.h>
23 enum dev_pm_opp_event {
24 OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
27 #if defined(CONFIG_PM_OPP)
29 unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
31 unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
33 bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp);
35 int dev_pm_opp_get_opp_count(struct device *dev);
36 unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev);
37 unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev);
38 unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev);
39 struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev);
41 struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
45 struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
48 struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
51 int dev_pm_opp_add(struct device *dev, unsigned long freq,
52 unsigned long u_volt);
53 void dev_pm_opp_remove(struct device *dev, unsigned long freq);
55 int dev_pm_opp_enable(struct device *dev, unsigned long freq);
57 int dev_pm_opp_disable(struct device *dev, unsigned long freq);
59 struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
60 int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
62 void dev_pm_opp_put_supported_hw(struct device *dev);
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);
65 int dev_pm_opp_set_regulator(struct device *dev, const char *name);
66 void dev_pm_opp_put_regulator(struct device *dev);
67 int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
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);
70 void dev_pm_opp_remove_table(struct device *dev);
71 void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask);
73 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
78 static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
83 static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp)
88 static inline int dev_pm_opp_get_opp_count(struct device *dev)
93 static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev)
98 static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev)
103 static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev)
108 static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev)
113 static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
114 unsigned long freq, bool available)
116 return ERR_PTR(-ENOTSUPP);
119 static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
122 return ERR_PTR(-ENOTSUPP);
125 static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
128 return ERR_PTR(-ENOTSUPP);
131 static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
132 unsigned long u_volt)
137 static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
141 static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
146 static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
151 static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
154 return ERR_PTR(-ENOTSUPP);
157 static inline int dev_pm_opp_set_supported_hw(struct device *dev,
164 static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}
166 static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name)
171 static inline void dev_pm_opp_put_prop_name(struct device *dev) {}
173 static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name)
178 static inline void dev_pm_opp_put_regulator(struct device *dev) {}
180 static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
185 static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask)
190 static inline int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
195 static inline void dev_pm_opp_remove_table(struct device *dev)
199 static inline void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask)
203 #endif /* CONFIG_PM_OPP */
205 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
206 int dev_pm_opp_of_add_table(struct device *dev);
207 void dev_pm_opp_of_remove_table(struct device *dev);
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);
212 static inline int dev_pm_opp_of_add_table(struct device *dev)
217 static inline void dev_pm_opp_of_remove_table(struct device *dev)
221 static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask)
226 static inline void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask)
230 static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
236 #endif /* __LINUX_OPP_H__ */