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PM / devfreq: Add resource-managed function for devfreq device

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This patch add resource-managed function for devfreq device as following
functions. The devm_devfreq_add_device() manages automatically the memory
of devfreq device using device resource management.
- devm_devfreq_add_device()
- devm_devfreq_remove_device()

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
This commit is contained in:
Chanwoo Choi 2014-05-09 16:43:08 +09:00 • committed by MyungJoo Ham
parent 585fc83ece
commit 8cd84092d3
2 changed files with 83 additions and 1 deletions
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21
include/linux/devfreq.h
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@ -181,6 +181,12 @@ extern struct devfreq *devfreq_add_device(struct device *dev,
const char *governor_name,
void *data);
extern int devfreq_remove_device(struct devfreq *devfreq);
extern struct devfreq *devm_devfreq_add_device(struct device *dev,
struct devfreq_dev_profile *profile,
const char *governor_name,
void *data);
extern void devm_devfreq_remove_device(struct device *dev,
struct devfreq *devfreq);
/* Supposed to be called by PM_SLEEP/PM_RUNTIME callbacks */
extern int devfreq_suspend_device(struct devfreq *devfreq);
@ -220,7 +226,7 @@ static inline struct devfreq *devfreq_add_device(struct device *dev,
const char *governor_name,
void *data)
{
return NULL;
return ERR_PTR(-ENOSYS);
}
static inline int devfreq_remove_device(struct devfreq *devfreq)
@ -228,6 +234,19 @@ static inline int devfreq_remove_device(struct devfreq *devfreq)
return 0;
}
static inline struct devfreq *devm_devfreq_add_device(struct device *dev,
struct devfreq_dev_profile *profile,
const char *governor_name,
void *data)
{
return ERR_PTR(-ENOSYS);
}
static inline void devm_devfreq_remove_device(struct device *dev,
struct devfreq *devfreq)
{
}
static inline int devfreq_suspend_device(struct devfreq *devfreq)
{
return 0;