usb: phy: 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: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/phy/phy-nop.c b/drivers/usb/phy/phy-nop.c
index 55445e5d..f52b7f8 100644
--- a/drivers/usb/phy/phy-nop.c
+++ b/drivers/usb/phy/phy-nop.c
@@ -142,7 +142,8 @@
 static int nop_usb_xceiv_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data;
+	struct nop_usb_xceiv_platform_data *pdata =
+			dev_get_platdata(&pdev->dev);
 	struct nop_usb_xceiv	*nop;
 	enum usb_phy_type	type = USB_PHY_TYPE_USB2;
 	int err;