linux-kernel - [PATCH] arm64: dts: imx8mq-phanbell: Fix Ethernet PHY post-reset duration

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Date:   Fri,  6 Mar 2020 07:42:19 -0300
From:   Alifer Moraes <alifer.wsdm@...il.com>
To:     robh+dt@...nel.org
Cc:     shawnguo@...nel.org, s.hauer@...gutronix.de, festevam@...il.com,
        marco.franchi@....com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Alifer Moraes <alifer.wsdm@...il.com>
Subject: [PATCH] arm64: dts: imx8mq-phanbell: Fix Ethernet PHY post-reset duration

i.MX8MQ Phanbell board uses Realtek RTL8211FD as Ethernet PHY.
Its datasheet states that the proper post reset duration should be at least 50 ms.

Fixes: f34d4bfab354 ("arm64: dts: imx8mq-phanbell: Add support for ethernet")
Signed-off-by: Alifer Moraes <alifer.wsdm@...il.com>
---
 arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts b/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts
index 16ed13c44a47..06e248b95ada 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-phanbell.dts
@@ -207,7 +207,7 @@
 	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
 	phy-reset-duration = <10>;
-	phy-reset-post-delay = <30>;
+	phy-reset-post-delay = <50>;
 	phy-handle = <&ethphy0>;
 	fsl,magic-packet;
 	status = "okay";
-- 
2.17.1