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PM / devfreq: Add devm_devfreq_add_governor()

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Add resource-managed variant of devfreq_add_governor().

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Dmitry Osipenko 2021-09-20 20:22:47 +03:00 committed by Viresh Kumar
parent e69709f686
commit 1cc55204b0
2 changed files with 29 additions and 0 deletions
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26
drivers/devfreq/devfreq.c
View File

@ -1301,6 +1301,32 @@ err_out:
} }
EXPORT_SYMBOL(devfreq_add_governor); EXPORT_SYMBOL(devfreq_add_governor);
static void devm_devfreq_remove_governor(void *governor)
{
WARN_ON(devfreq_remove_governor(governor));
}
/**
* devm_devfreq_add_governor() - Add devfreq governor
* @dev: device which adds devfreq governor
* @governor: the devfreq governor to be added
*
* This is a resource-managed variant of devfreq_add_governor().
*/
int devm_devfreq_add_governor(struct device *dev,
struct devfreq_governor *governor)
{
int err;
err = devfreq_add_governor(governor);
if (err)
return err;
return devm_add_action_or_reset(dev, devm_devfreq_remove_governor,
governor);
}
EXPORT_SYMBOL(devm_devfreq_add_governor);
/** /**
* devfreq_remove_governor() - Remove devfreq feature from a device. * devfreq_remove_governor() - Remove devfreq feature from a device.
* @governor: the devfreq governor to be removed * @governor: the devfreq governor to be removed

3
drivers/devfreq/governor.h
View File

@ -84,6 +84,9 @@ void devfreq_update_interval(struct devfreq *devfreq, unsigned int *delay);
int devfreq_add_governor(struct devfreq_governor *governor); int devfreq_add_governor(struct devfreq_governor *governor);
int devfreq_remove_governor(struct devfreq_governor *governor); int devfreq_remove_governor(struct devfreq_governor *governor);
int devm_devfreq_add_governor(struct device *dev,
struct devfreq_governor *governor);
int devfreq_update_status(struct devfreq *devfreq, unsigned long freq); int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
int devfreq_update_target(struct devfreq *devfreq, unsigned long freq); int devfreq_update_target(struct devfreq *devfreq, unsigned long freq);