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);
59 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
64 static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
69 static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp)
74 static inline int dev_pm_opp_get_opp_count(struct device *dev)
79 static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev)
84 static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev)
89 static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
90 unsigned long freq, bool available)
92 return ERR_PTR(-EINVAL);
95 static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
98 return ERR_PTR(-EINVAL);
101 static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
104 return ERR_PTR(-EINVAL);
107 static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
108 unsigned long u_volt)
113 static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
117 static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
122 static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
127 static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
130 return ERR_PTR(-EINVAL);
132 #endif /* CONFIG_PM_OPP */
134 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
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);
142 static inline int dev_pm_opp_of_add_table(struct device *dev)
147 static inline void dev_pm_opp_of_remove_table(struct device *dev)
151 static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask)
156 static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask)
160 static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
165 static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
171 #endif /* __LINUX_OPP_H__ */