linux-kernel - [PATCH 5.4 137/149] ARM: dts: imx6q-dhcom: Fix ethernet plugin detection problems

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Date:   Mon, 19 Jul 2021 16:54:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christoph Niedermaier <cniedermaier@...electronics.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        Marek Vasut <marex@...x.de>,
        NXP Linux Team <linux-imx@....com>,
        kernel@...electronics.com, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 137/149] ARM: dts: imx6q-dhcom: Fix ethernet plugin detection problems

From: Christoph Niedermaier <cniedermaier@...electronics.com>

[ Upstream commit e2bdd3484890441b9cc2560413a86e8f2aa04157 ]

To make the ethernet cable plugin detection reliable the
power detection of the smsc phy has been disabled.

Fixes: 52c7a088badd ("ARM: dts: imx6q: Add support for the DHCOM iMX6 SoM and PDK2")
Signed-off-by: Christoph Niedermaier <cniedermaier@...electronics.com>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: Fabio Estevam <festevam@...il.com>
Cc: Marek Vasut <marex@...x.de>
Cc: NXP Linux Team <linux-imx@....com>
Cc: kernel@...electronics.com
To: linux-arm-kernel@...ts.infradead.org
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/imx6q-dhcom-som.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
index d347c8db0ab7..0824051a98f8 100644
--- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
@@ -100,6 +100,7 @@
 			reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <1000>;
 			reset-deassert-us = <1000>;
+			smsc,disable-energy-detect; /* Make plugin detection reliable */
 		};
 	};
 };
-- 
2.30.2