regulator: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
index 8a7cb1f..7023097 100644
--- a/drivers/regulator/88pm8607.c
+++ b/drivers/regulator/88pm8607.c
@@ -346,7 +346,7 @@
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
 	struct pm8607_regulator_info *info = NULL;
-	struct regulator_init_data *pdata = pdev->dev.platform_data;
+	struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
 	struct regulator_config config = { };
 	struct resource *res;
 	int i;