linux-kernel - [PATCH v2 09/12] arm64: dts: imx8mp-kontron: Fix USB hub reset

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Message-ID: <20250721100701.115548-10-frieder@fris.de>
Date: Mon, 21 Jul 2025 12:05:43 +0200
From: Frieder Schrempf <frieder@...s.de>
To: linux-arm-kernel@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>
Cc: Frieder Schrempf <frieder.schrempf@...tron.de>,
	Annette Kobou <annette.kobou@...tron.de>,
	Fabio Estevam <festevam@...il.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>
Subject: [PATCH v2 09/12] arm64: dts: imx8mp-kontron: Fix USB hub reset

From: Frieder Schrempf <frieder.schrempf@...tron.de>

The latest hardware revision uses GPIO_B_2 as reset for
the USB hub. Fix this and remove the pinctrl as we already
have this in the OSM-S devicetree.

Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
---
 .../boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts     | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
index bbcd76e9e9913..614b4ce330b1c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts
@@ -250,8 +250,6 @@ &usb_dwc3_0 {
 };
 
 &usb_dwc3_1 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usb_hub>;
 	#address-cells = <1>;
 	#size-cells = <0>;
 	dr_mode = "host";
@@ -260,7 +258,7 @@ &usb_dwc3_1 {
 	usb-hub@1 {
 		compatible = "usb424,2514";
 		reg = <1>;
-		reset-gpios = <&gpio3 14 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
 	};
 };
 
@@ -317,10 +315,4 @@ MX8MP_IOMUXC_ECSPI1_MOSI__GPIO5_IO07		0x46 /* CAN_ADR0 */
 			MX8MP_IOMUXC_ECSPI1_MISO__GPIO5_IO08		0x46 /* CAN_ADR1 */
 		>;
 	};
-
-	pinctrl_usb_hub: usbhubgrp {
-		fsl,pins = <
-			MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14		0x46
-		>;
-	};
 };
-- 
2.50.1