mfd: 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: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 9e60fed..c04723e 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -110,7 +110,7 @@
 			      const struct i2c_device_id *id)
 {
 	struct max77693_dev *max77693;
-	struct max77693_platform_data *pdata = i2c->dev.platform_data;
+	struct max77693_platform_data *pdata = dev_get_platdata(&i2c->dev);
 	u8 reg_data;
 	int ret = 0;