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power: Add devm_power_supply_get_by_phandle() helper function

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This commit adds a resource-managed version of the
power_supply_get_by_phandle() function.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Hans de Goede 2015-06-09 23:37:56 +02:00 • committed by Sebastian Reichel
parent a6e6b63ee2
commit fe27e1dfe9
2 changed files with 44 additions and 0 deletions
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5
include/linux/power_supply.h
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@ -292,10 +292,15 @@ extern void power_supply_put(struct power_supply *psy);
#ifdef CONFIG_OF
extern struct power_supply *power_supply_get_by_phandle(struct device_node *np,
const char *property);
extern struct power_supply *devm_power_supply_get_by_phandle(
struct device *dev, const char *property);
#else /* !CONFIG_OF */
static inline struct power_supply *
power_supply_get_by_phandle(struct device_node *np, const char *property)
{ return NULL; }
static inline struct power_supply *
devm_power_supply_get_by_phandle(struct device *dev, const char *property)
{ return NULL; }
#endif /* CONFIG_OF */
extern void power_supply_changed(struct power_supply *psy);
extern int power_supply_am_i_supplied(struct power_supply *psy);