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>

drivers/mfd/tps6586x.c

@@ -462,7 +462,7 @@ static void tps6586x_power_off(void)
 static int tps6586x_i2c_probe(struct i2c_client *client,
 					const struct i2c_device_id *id)
 {
-	struct tps6586x_platform_data *pdata = client->dev.platform_data;
+	struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct tps6586x *tps6586x;
 	int ret;