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__ */
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