linux-kernel - [PATCH V2 1/2] arm64: dts: imx8mm-evk: add phy-reset-gpios for fec1

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Message-ID: <1571652977-4754-1-git-send-email-peng.fan@nxp.com>
Date:   Mon, 21 Oct 2019 10:19:17 +0000
From:   Peng Fan <peng.fan@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>
CC:     dl-linux-imx <linux-imx@....com>,
        Anson Huang <anson.huang@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        Jacky Bai <ping.bai@....com>, Jun Li <jun.li@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andy Duan <fugang.duan@....com>, Peng Fan <peng.fan@....com>
Subject: [PATCH V2 1/2] arm64: dts: imx8mm-evk: add phy-reset-gpios for fec1

From: Peng Fan <peng.fan@....com>

We should not rely on bootloader to configure the phy reset.
So introduce phy-reset-gpios property to let Linux handle phy reset
itself.

Signed-off-by: Peng Fan <peng.fan@....com>
Reviewed-by: Marco Felsch <m.felsch@...gutronix.de>
---

V2:
 U-Boot->bootloader
 Add R-b tag

 arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index faefb7182af1..e4d66f7db09d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -80,6 +80,7 @@
 	pinctrl-0 = <&pinctrl_fec1>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
+	phy-reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
 	fsl,magic-packet;
 	status = "okay";
 
-- 
2.16.4