usb: misc: usb3503: 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/misc/usb3503.c

@@ -179,7 +179,7 @@ err_hubmode:
 
 static int usb3503_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 {
-	struct usb3503_platform_data *pdata = i2c->dev.platform_data;
+	struct usb3503_platform_data *pdata = dev_get_platdata(&i2c->dev);
 	struct device_node *np = i2c->dev.of_node;
 	struct usb3503 *hub;
 	int err = -ENOMEM;