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regulator: core: Add helper to put of_nodes from matches

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As of_regulator_match will take an of_node reference to each matched
regulator, it makes sense to provide a helper to put all those
references. This patch does that.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Charles Keepax 2014-04-03 15:32:16 +01:00 committed by Mark Brown
parent bd0dda744c
commit 3764806440
2 changed files with 28 additions and 0 deletions
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21
drivers/regulator/of_regulator.c
View File

@ -172,3 +172,24 @@ int of_regulator_match(struct device *dev, struct device_node *node,
return count;
}
EXPORT_SYMBOL_GPL(of_regulator_match);
/**
* of_regulator_put_match - put the of_node references from an
* of_regulator_match structure
* @matches: match table for the regulators
* @num_matches: number of entries in match table
*
* This function goes through a match table and calls of_node_put on each
* of_node.
*/
int of_regulator_put_match(struct of_regulator_match *matches,
unsigned int num_matches)
{
int i;
for (i = 0; i < num_matches; i++)
of_node_put(matches[i].of_node);
return 0;
}
EXPORT_SYMBOL_GPL(of_regulator_put_match);

7
include/linux/regulator/of_regulator.h
View File

@ -20,6 +20,8 @@ extern struct regulator_init_data
extern int of_regulator_match(struct device *dev, struct device_node *node,
struct of_regulator_match *matches,
unsigned int num_matches);
extern int of_regulator_put_match(struct of_regulator_match *matches,
unsigned int num_matches);
#else
static inline struct regulator_init_data
*of_get_regulator_init_data(struct device *dev,
@ -35,6 +37,11 @@ static inline int of_regulator_match(struct device *dev,
{
return 0;
}
static inline int of_regulator_put_match(struct of_regulator_match *matches,
unsigned int num_matches);
{
return 0;
}
#endif /* CONFIG_OF */
#endif /* __LINUX_OF_REG_H */