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/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 759fae3..d2b8e71 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -232,7 +232,7 @@
 static int omap_usbhs_alloc_children(struct platform_device *pdev)
 {
 	struct device				*dev = &pdev->dev;
-	struct usbhs_omap_platform_data		*pdata = dev->platform_data;
+	struct usbhs_omap_platform_data		*pdata = dev_get_platdata(dev);
 	struct platform_device			*ehci;
 	struct platform_device			*ohci;
 	struct resource				*res;
@@ -571,7 +571,7 @@
 static int usbhs_omap_probe(struct platform_device *pdev)
 {
 	struct device			*dev =  &pdev->dev;
-	struct usbhs_omap_platform_data	*pdata = dev->platform_data;
+	struct usbhs_omap_platform_data	*pdata = dev_get_platdata(dev);
 	struct usbhs_hcd_omap		*omap;
 	struct resource			*res;
 	int				ret = 0;