[PATCH 1/3] regulator: core: Constify the regulator_desc passed in when registering

[Mark Brown <broonie@opensource.wolfsonmicro.com>]

Drivers should be able to declare their descriptors const and the framework
shouldn't ever be modifying the desciptor. Make the parameter and the
pointer in regulator_dev const to enforce this.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/regulator/core.c         |    3 ++-
 include/linux/regulator/driver.h |    5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index c056abd..c4b6267 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2829,7 +2829,8 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
  * Called by regulator drivers to register a regulator.
  * Returns 0 on success.
  */
-struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
+struct regulator_dev *
+regulator_register(const struct regulator_desc *regulator_desc,
 	struct device *dev, const struct regulator_init_data *init_data,
 	void *driver_data, struct device_node *of_node)
 {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index fa8b55b..1dcdf00 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -184,7 +184,7 @@ struct regulator_desc {
  * no other direct access).
  */
 struct regulator_dev {
-	struct regulator_desc *desc;
+	const struct regulator_desc *desc;
 	int exclusive;
 	u32 use_count;
 	u32 open_count;
@@ -210,7 +210,8 @@ struct regulator_dev {
 	struct dentry *debugfs;
 };
 
-struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
+struct regulator_dev *
+regulator_register(const struct regulator_desc *regulator_desc,
 	struct device *dev, const struct regulator_init_data *init_data,
 	void *driver_data, struct device_node *of_node);
 void regulator_unregister(struct regulator_dev *rdev);
-- 
1.7.9.1