linux-kernel - [PATCH v2] arm64: dts: ti: k3-j722s-evm: Fix USB2.0_MUX

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Message-ID: <20250205094448.586094-1-h-salunke@ti.com>
Date: Wed, 5 Feb 2025 15:14:48 +0530
From: Hrushikesh Salunke <h-salunke@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <r-gunasekaran@...com>,
        <rogerq@...nel.org>, <s-vadapalli@...com>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <h-salunke@...com>,
        <danishanwar@...com>, <srk@...com>
Subject: [PATCH v2] arm64: dts: ti: k3-j722s-evm: Fix USB2.0_MUX_SEL to select Type-C

J722S SOC has two usb controllers USB0 and USB1. USB0 is brought out on
the EVM as a stacked USB connector which has one Type-A and one Type-C
port. These Type-A and Type-C ports are connected to MUX so only
one of them can be enabled at a time.

Commit under Fixes, tries to enable the USB0 instance of USB to
interface with the Type-C port via the USB hub, by configuring the
USB2.0_MUX_SEL to GPIO_ACTIVE_HIGH. But it is observed on J722S-EVM
that Type-A port is enabled instead of Type-C port.

Fix this by setting USB2.0_MUX_SEL to GPIO_ACTIVE_LOW to enable Type-C
port.

Fixes: 485705df5d5f ("arm64: dts: ti: k3-j722s: Enable PCIe and USB support on J722S-EVM")
Signed-off-by: Hrushikesh Salunke <h-salunke@...com>
Reviewed-by: Roger Quadros <rogerq@...nel.org>
---
This patch is based on commit
5c8c229261f1 (origin/master, origin/HEAD) Merge tag 'kthreads-fixes-2025-02-04' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks

Changes since v1
Collected reviewed by tag

v1: https://patchwork.kernel.org/project/linux-arm-kernel/patch/20250116125726.2549489-1-h-salunke@ti.com/

 arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index d184e9c1a0a5..adee69607fdb 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -590,7 +590,7 @@ exp1: gpio@23 {
 		p05-hog {
 			/* P05 - USB2.0_MUX_SEL */
 			gpio-hog;
-			gpios = <5 GPIO_ACTIVE_HIGH>;
+			gpios = <5 GPIO_ACTIVE_LOW>;
 			output-high;
 		};
 
-- 
2.34.1