linux-kernel - [PATCH v1 06/15] ARM: dts: imx6dl: lanmcu: Configure over-current polarity for USB OTG node

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Message-Id: <20230530120345.2874900-7-o.rempel@pengutronix.de>
Date:   Tue, 30 May 2023 14:03:36 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        NXP Linux Team <linux-imx@....com>,
        Fabio Estevam <festevam@...il.com>
Subject: [PATCH v1 06/15] ARM: dts: imx6dl: lanmcu: Configure over-current polarity for USB OTG node

This commit adds the 'over-current-active-low' flag to the USB OTG node
in the imx6dl-lanmcu device tree. This flag is necessary because the
hardware signals over-current conditions by pulling the line low.
Without this flag, the kernel could misinterpret an over-current
condition, leading to unexpected behavior.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 arch/arm/boot/dts/imx6dl-lanmcu.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6dl-lanmcu.dts b/arch/arm/boot/dts/imx6dl-lanmcu.dts
index bbfa921e657d..7c62db91173b 100644
--- a/arch/arm/boot/dts/imx6dl-lanmcu.dts
+++ b/arch/arm/boot/dts/imx6dl-lanmcu.dts
@@ -257,6 +257,7 @@ &usbotg {
 	pinctrl-0 = <&pinctrl_usbotg>;
 	phy_type = "utmi";
 	dr_mode = "host";
+	over-current-active-low;
 	status = "okay";
 };
 
-- 
2.39.2