From: Fabio Estevam <festevam@denx.de>
Date: Sun, 20 Jun 2021 15:00:52 +0000 (-0300)
Subject: usb: ehci-mx6: Do not fail when 'reg' is not found
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=4822114f4fb4328114da8ab199672656591a150d;p=u-boot.git

usb: ehci-mx6: Do not fail when 'reg' is not found

Unlike imx6, on imx7 the USB PHY is described as:

	usbphynop1: usbphynop1 {
		compatible = "usb-nop-xceiv";
		clocks = <&clks IMX7D_USB_PHY1_CLK>;
		clock-names = "main_clk";
		#phy-cells = <0>;
	};

which does not have the 'reg' property.

Do not return an error when the 'reg' property is not found
for the USB PHY.

This fixes USB gadget regression on a imx7s-warp board.

Successfully tested the "ums 0 mmc 0" command on two boards:
imx7s-warp and imx6dl-pico-pi.

Signed-off-by: Fabio Estevam <festevam@denx.de>
---

diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 48b5c8b0c5..c3e4170513 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -583,7 +583,7 @@ static int mx6_parse_dt_addrs(struct udevice *dev)
 
 	addr = (void __iomem *)fdtdec_get_addr(blob, phy_off, "reg");
 	if ((fdt_addr_t)addr == FDT_ADDR_T_NONE)
-		return -EINVAL;
+		addr = NULL;
 
 	priv->phy_addr = addr;