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/aat2870-core.c

@@ -363,7 +363,7 @@ static inline void aat2870_uninit_debugfs(struct aat2870_data *aat2870)
 static int aat2870_i2c_probe(struct i2c_client *client,
 			     const struct i2c_device_id *id)
 {
-	struct aat2870_platform_data *pdata = client->dev.platform_data;
+	struct aat2870_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct aat2870_data *aat2870;
 	int i, j;
 	int ret = 0;