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opp: Add devm_pm_opp_register_set_opp_helper

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Add resource-managed version of dev_pm_opp_register_set_opp_helper().

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[ Viresh: Manually apply the patch and relocate the routines ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Dmitry Osipenko 2021-01-18 03:55:20 +03:00 committed by Viresh Kumar
parent 559fef0dfd
commit a3c47af694
2 changed files with 42 additions and 0 deletions
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34
drivers/opp/core.c
View File

@ -2106,6 +2106,40 @@ void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table)
}
EXPORT_SYMBOL_GPL(dev_pm_opp_unregister_set_opp_helper);
static void devm_pm_opp_unregister_set_opp_helper(void *data)
{
dev_pm_opp_unregister_set_opp_helper(data);
}
/**
* devm_pm_opp_register_set_opp_helper() - Register custom set OPP helper
* @dev: Device for which the helper is getting registered.
* @set_opp: Custom set OPP helper.
*
* This is a resource-managed version of dev_pm_opp_register_set_opp_helper().
*
* Return: pointer to 'struct opp_table' on success and errorno otherwise.
*/
struct opp_table *
devm_pm_opp_register_set_opp_helper(struct device *dev,
int (*set_opp)(struct dev_pm_set_opp_data *data))
{
struct opp_table *opp_table;
int err;
opp_table = dev_pm_opp_register_set_opp_helper(dev, set_opp);
if (IS_ERR(opp_table))
return opp_table;
err = devm_add_action_or_reset(dev, devm_pm_opp_unregister_set_opp_helper,
opp_table);
if (err)
return ERR_PTR(err);
return opp_table;
}
EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
static void _opp_detach_genpd(struct opp_table *opp_table)
{
int index;

8
include/linux/pm_opp.h
View File

@ -152,6 +152,7 @@ struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char * name);
void dev_pm_opp_put_clkname(struct opp_table *opp_table);
struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs);
void dev_pm_opp_detach_genpd(struct opp_table *opp_table);
int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate);
@ -324,6 +325,13 @@ static inline struct opp_table *dev_pm_opp_register_set_opp_helper(struct device
static inline void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table) {}
static inline struct opp_table *
devm_pm_opp_register_set_opp_helper(struct device *dev,
int (*set_opp)(struct dev_pm_set_opp_data *data))
{
return ERR_PTR(-ENOTSUPP);
}
static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
{
return ERR_PTR(-ENOTSUPP);