linux-kernel - [PATCH v2] USB: host: ehci-mxc: Use the defined variable to simplify code

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Date:   Fri,  8 May 2020 22:40:24 +0800
From:   Tang Bin <tangbin@...s.chinamobile.com>
To:     stern@...land.harvard.edu, gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tang Bin <tangbin@...s.chinamobile.com>,
        Zhang Shengju <zhangshengju@...s.chinamobile.com>
Subject: [PATCH v2] 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@...s.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@...s.chinamobile.com>
---
Changes from v1:
 - fix the subject and the code.
---
 drivers/usb/host/ehci-mxc.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index c9f91e6c7..09e01397f 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/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);
-- 
2.20.1.windows.1