Add a resource managed regulator_get_exclusive()
Signed-off-by: Matthias Kaehlcke <matth...@kaehlcke.net>
---
drivers/regulator/core.c | 30 ++++++++++++++++++++++++++++++
include/linux/regulator/consumer.h | 2 ++
2 files changed, 32 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 288c75a..0e8ff09 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1435,6 +1435,36 @@ static void _regulator_put(struct regulator *regulator)
}
/**
+ * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get_exclusive(). Regulators returned from this function
+ * are automatically regulator_put() on driver detach. See regulator_get() for
+ * more information.
+ */
+struct regulator *devm_regulator_get_exclusive(struct device *dev,
+ const char *id)
+{
+ struct regulator **ptr, *regulator;
+
+ ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ regulator = _regulator_get(dev, id, 1);
+ if (!IS_ERR(regulator)) {
+ *ptr = regulator;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return regulator;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive);
+
+/**
* regulator_put - "free" the regulator source
* @regulator: regulator source
*
diff --git a/include/linux/regulator/consumer.h
b/include/linux/regulator/consumer.h
index 3a76389..399d4a1 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -137,6 +137,8 @@ struct regulator *__must_check devm_regulator_get(struct
device *dev,
const char *id);
struct regulator *__must_check regulator_get_exclusive(struct device *dev,
const char *id);
+struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev,
+ const char *id);
void regulator_put(struct regulator *regulator);
void devm_regulator_put(struct regulator *regulator);
--
1.7.10.4
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