regulator: core: Use dev_get_regmap() to find the regmap

If no regmap is explicitly specified then use dev_get_regmap() to obtain
one. The driver must explicitly enable any actual usage of the regmap
so there's no concern with unwanted usage.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7965e86a3fbb..8521e0d6b3bc 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3128,7 +3128,10 @@ regulator_register(const struct regulator_desc *regulator_desc,
         rdev->reg_data = config->driver_data;
         rdev->owner = regulator_desc->owner;
         rdev->desc = regulator_desc;
-        rdev->regmap = config->regmap;
+        if (config->regmap)
+                rdev->regmap = config->regmap;
+        else
+                rdev->regmap = dev_get_regmap(dev, NULL);
         INIT_LIST_HEAD(&rdev->consumer_list);
         INIT_LIST_HEAD(&rdev->list);
         BLOCKING_INIT_NOTIFIER_HEAD(&rdev->notifier);