net: davinci_mdio: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/davinci_mdio.c

@@ -314,7 +314,7 @@ static int davinci_mdio_probe_dt(struct mdio_platform_data *data,
 
 static int davinci_mdio_probe(struct platform_device *pdev)
 {
-	struct mdio_platform_data *pdata = pdev->dev.platform_data;
+	struct mdio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device *dev = &pdev->dev;
 	struct davinci_mdio_data *data;
 	struct resource *res;