Messages in this thread Patch in this message | | | From | Tim Harvey <> | Subject | [PATCH 1/5] regulator: add function to determine if 2 regulators are the same | Date | Thu, 30 Oct 2014 21:27:07 -0700 |
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Regulator structures can point to the same internal regulator dev's but as that information is private we need to expose a function to determine if two regulators do so.
Cc: linux-pm@vger.kernel.org Signed-off-by: Tim Harvey <tharvey@gateworks.com> --- drivers/regulator/core.c | 17 +++++++++++++++++ include/linux/regulator/consumer.h | 8 ++++++++ 2 files changed, 25 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cd87c0c..6d4a627 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2184,6 +2184,23 @@ int regulator_is_enabled(struct regulator *regulator) EXPORT_SYMBOL_GPL(regulator_is_enabled); /** + * regulator_is_same - are two regulators the same + * @regulator1: regulator source + * @regulator2: regulator source + * + * Returns positive if both regulators point to the same regulator_dev. + */ +int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2) +{ + if (!regulator1 || !regulator2) + return -EINVAL; + + return (regulator1->rdev == regulator2->rdev) ? 1 : 0; +} +EXPORT_SYMBOL_GPL(regulator_is_same); + +/** * regulator_can_change_voltage - check if regulator can change voltage * @regulator: regulator source * diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index d347c80..972090a 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -200,6 +200,8 @@ int __must_check regulator_enable(struct regulator *regulator); int regulator_disable(struct regulator *regulator); int regulator_force_disable(struct regulator *regulator); int regulator_is_enabled(struct regulator *regulator); +int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2); int regulator_disable_deferred(struct regulator *regulator, int ms); int __must_check regulator_bulk_get(struct device *dev, int num_consumers, @@ -387,6 +389,12 @@ static inline int regulator_is_enabled(struct regulator *regulator) return 1; } +static inline int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2) +{ + return 0; +} + static inline int regulator_bulk_get(struct device *dev, int num_consumers, struct regulator_bulk_data *consumers) -- 1.8.3.2
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