USB: host: ehci-mxc: Use the defined variable to simplify code

Use the defined variable "dev" to make the code cleaner. And
delete an extra blank line.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20200508144024.7836-1-tangbin@cmss.chinamobile.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ehci-mxc.c

@@ -36,12 +36,12 @@ static const struct ehci_driver_overrides ehci_mxc_overrides __initconst = {
 
 static int ehci_mxc_drv_probe(struct platform_device *pdev)
 {
-	struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct device *dev = &pdev->dev;
+	struct mxc_usbh_platform_data *pdata = dev_get_platdata(dev);
 	struct usb_hcd *hcd;
 	struct resource *res;
 	int irq, ret;
 	struct ehci_mxc_priv *priv;
-	struct device *dev = &pdev->dev;
 	struct ehci_hcd *ehci;
 
 	if (!pdata) {
@@ -56,7 +56,7 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto err_alloc;
@@ -69,14 +69,14 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	priv = (struct ehci_mxc_priv *) ehci->priv;
 
 	/* enable clocks */
-	priv->usbclk = devm_clk_get(&pdev->dev, "ipg");
+	priv->usbclk = devm_clk_get(dev, "ipg");
 	if (IS_ERR(priv->usbclk)) {
 		ret = PTR_ERR(priv->usbclk);
 		goto err_alloc;
 	}
 	clk_prepare_enable(priv->usbclk);
 
-	priv->ahbclk = devm_clk_get(&pdev->dev, "ahb");
+	priv->ahbclk = devm_clk_get(dev, "ahb");
 	if (IS_ERR(priv->ahbclk)) {
 		ret = PTR_ERR(priv->ahbclk);
 		goto err_clk_ahb;
@@ -84,13 +84,12 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	clk_prepare_enable(priv->ahbclk);
 
 	/* "dr" device has its own clock on i.MX51 */
-	priv->phyclk = devm_clk_get(&pdev->dev, "phy");
+	priv->phyclk = devm_clk_get(dev, "phy");
 	if (IS_ERR(priv->phyclk))
 		priv->phyclk = NULL;
 	if (priv->phyclk)
 		clk_prepare_enable(priv->phyclk);
 
-
 	/* call platform specific init function */
 	if (pdata->init) {
 		ret = pdata->init(pdev);