usb: renesas_usbhs: rename phy to usb_phy in usbhs_priv

To support a generic phy driver in this driver later, this patch
renames "struct usb_phy *phy" to "struct usb_phy *usb_phy".
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/renesas_usbhs/common.h

@@ -269,7 +269,7 @@ struct usbhs_priv {
 	 */
 	struct usbhs_fifo_info fifo_info;
 
-	struct usb_phy *phy;
+	struct usb_phy *usb_phy;
 };
 
 /*

drivers/usb/renesas_usbhs/rcar2.c

@@ -20,13 +20,13 @@
 static int usbhs_rcar2_hardware_init(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
-	struct usb_phy *phy;
+	struct usb_phy *usb_phy;
 
-	phy = usb_get_phy_dev(&pdev->dev, 0);
-	if (IS_ERR(phy))
-		return PTR_ERR(phy);
+	usb_phy = usb_get_phy_dev(&pdev->dev, 0);
+	if (IS_ERR(usb_phy))
+		return PTR_ERR(usb_phy);
 
-	priv->phy = phy;
+	priv->usb_phy = usb_phy;
 	return 0;
 }
 
@@ -34,11 +34,11 @@ static int usbhs_rcar2_hardware_exit(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 
-	if (!priv->phy)
+	if (!priv->usb_phy)
 		return 0;
 
-	usb_put_phy(priv->phy);
-	priv->phy = NULL;
+	usb_put_phy(priv->usb_phy);
+	priv->usb_phy = NULL;
 
 	return 0;
 }
@@ -48,19 +48,19 @@ static int usbhs_rcar2_power_ctrl(struct platform_device *pdev,
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 
-	if (!priv->phy)
+	if (!priv->usb_phy)
 		return -ENODEV;
 
 	if (enable) {
-		int retval = usb_phy_init(priv->phy);
+		int retval = usb_phy_init(priv->usb_phy);
 
 		if (!retval)
-			retval = usb_phy_set_suspend(priv->phy, 0);
+			retval = usb_phy_set_suspend(priv->usb_phy, 0);
 		return retval;
 	}
 
-	usb_phy_set_suspend(priv->phy, 1);
-	usb_phy_shutdown(priv->phy);
+	usb_phy_set_suspend(priv->usb_phy, 1);
+	usb_phy_shutdown(priv->usb_phy);
 	return 0;
 }