usb: musb: jz4740: obtain USB PHY from devicetree

Fall back to devm_usb_get_phy() if devicetree is not available.

Signed-off-by: Paul Cercueil <[e-mail]>
Signed-off-by: Bin Liu <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/musb/jz4740.c

···
 
 static int jz4740_musb_init(struct musb *musb)
 {
-	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
+	struct device *dev = musb->controller->parent;
+
+	if (dev->of_node)
+		musb->xceiv = devm_usb_get_phy_by_phandle(dev, "phys", 0);
+	else
+		musb->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
 	if (IS_ERR(musb->xceiv)) {
-		pr_err("HS UDC: no transceiver configured\n");
+		dev_err(dev, "No transceiver configured\n");
 		return PTR_ERR(musb->xceiv);
 	}
 
···
 	return 0;
 }
 
-static int jz4740_musb_exit(struct musb *musb)
-{
-	usb_put_phy(musb->xceiv);
-
-	return 0;
-}
-
 /*
  * DMA has not been confirmed to work with CONFIG_USB_INVENTRA_DMA,
  * so let's not set up the dma function pointers yet.
···
 	.quirks		= MUSB_DMA_INVENTRA | MUSB_INDEXED_EP,
 	.fifo_mode	= 2,
 	.init		= jz4740_musb_init,
-	.exit		= jz4740_musb_exit,
 };
 
 static int jz4740_probe(struct platform_device *pdev)