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 struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev);
39 struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
43 struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
46 struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
49 int dev_pm_opp_add(struct device *dev, unsigned long freq,
50 unsigned long u_volt);
51 void dev_pm_opp_remove(struct device *dev, unsigned long freq);
53 int dev_pm_opp_enable(struct device *dev, unsigned long freq);
55 int dev_pm_opp_disable(struct device *dev, unsigned long freq);
57 struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
58 int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
60 void dev_pm_opp_put_supported_hw(struct device *dev);
61 int dev_pm_opp_set_prop_name(struct device *dev, const char *name);
62 void dev_pm_opp_put_prop_name(struct device *dev);
64 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
69 static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
74 static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp)
79 static inline int dev_pm_opp_get_opp_count(struct device *dev)
84 static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev)
89 static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev)
94 static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
95 unsigned long freq, bool available)
97 return ERR_PTR(-EINVAL);
100 static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
103 return ERR_PTR(-EINVAL);
106 static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
109 return ERR_PTR(-EINVAL);
112 static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
113 unsigned long u_volt)
118 static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
122 static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
127 static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
132 static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
135 return ERR_PTR(-EINVAL);
138 static inline int dev_pm_opp_set_supported_hw(struct device *dev,
145 static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}
147 static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name)
152 static inline void dev_pm_opp_put_prop_name(struct device *dev) {}
154 #endif /* CONFIG_PM_OPP */
156 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
157 int dev_pm_opp_of_add_table(struct device *dev);
158 void dev_pm_opp_of_remove_table(struct device *dev);
159 int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask);
160 void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask);
161 int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
162 int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
164 static inline int dev_pm_opp_of_add_table(struct device *dev)
169 static inline void dev_pm_opp_of_remove_table(struct device *dev)
173 static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask)
178 static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask)
182 static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
187 static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
193 #endif /* __LINUX_OPP_H__ */