linux-kernel - [PATCH] arm64: dts: ti: k3-j784s4-evm:quad-port-eth-exp1: Remove duplicate hogs

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Message-ID: <20250110101855.156136-1-j-choudhary@ti.com>
Date: Fri, 10 Jan 2025 15:48:55 +0530
From: Jayesh Choudhary <j-choudhary@...com>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <devicetree@...r.kernel.org>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <s-vadapalli@...com>, <c-vankar@...com>, <j-choudhary@...com>
Subject: [PATCH] arm64: dts: ti: k3-j784s4-evm:quad-port-eth-exp1: Remove duplicate hogs

The j784s4-evm board dts now has the gpio hogs for MUX2 after integration
of audio support.
Remove duplicate gpio-hogs from the overlay dtso to prevent mux probe
failures leading to can-phy3 deferred probe:
'gpio-mux mux-controller: probe with driver gpio-mux failed with error -16'

Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
---

GPIO 13 and 15 are set to high in k3-j784s4-evm.dts in exp2 node
as gpio-hog and GPIO 14 is set to high using idle-state in mux1 node.

Log with probe issue:
<https://gist.github.com/Jayesh2000/861ba647dfaec2dd8ed745a5b8d002e4>

Log with this fix:
<https://gist.github.com/Jayesh2000/73d59504d52a36bb31fe49a4faae2693>

 .../boot/dts/ti/k3-j784s4-evm-quad-port-eth-exp1.dtso      | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm-quad-port-eth-exp1.dtso b/arch/arm64/boot/dts/ti/k3-j784s4-evm-quad-port-eth-exp1.dtso
index dcd2c7c39ec3..c1f9573557d0 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm-quad-port-eth-exp1.dtso
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm-quad-port-eth-exp1.dtso
@@ -102,13 +102,6 @@ qsgmii-line-hog {
 		gpios = <16 GPIO_ACTIVE_HIGH>;
 		output-low;
 	};
-
-	/* Toggle MUX2 for MDIO lines */
-	mux-sel-hog {
-		gpio-hog;
-		gpios = <13 GPIO_ACTIVE_HIGH>, <14 GPIO_ACTIVE_HIGH>, <15 GPIO_ACTIVE_HIGH>;
-		output-high;
-	};
 };
 
 &main_pmx0 {
-- 
2.34.1