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__ */
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