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From: Franz Schnyder <fra.schnyder@gmail.com>
To: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
	Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: Franz Schnyder <franz.schnyder@toradex.com>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: [PATCH v1 1/2] arm64: dts: ti: k3-am69-aquila-dev: Fix DP regulator enable GPIO
Date: Mon,  2 Feb 2026 09:36:00 +0100	[thread overview]
Message-ID: <20260202083604.325060-2-fra.schnyder@gmail.com> (raw)
In-Reply-To: <20260202083604.325060-1-fra.schnyder@gmail.com>

From: Franz Schnyder <franz.schnyder@toradex.com>

Correct the DP regulator enable GPIO to index 21.
The 3.3V DP regulator was not being enabled by the assigned GPIO, as it
is routed to GPIO index 21 and not 37, which was causing instability
with displays connected over DP or via an active DP-to-HDMI adapter.

Fixes: 39ac6623b1d8 ("arm64: dts: ti: Add Aquila AM69 Support")
Cc: stable@vger.kernel.org
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
---
 arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts b/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
index f48601ae38b7..d3677c2c2547 100644
--- a/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
+++ b/arch/arm64/boot/dts/ti/k3-am69-aquila-dev.dts
@@ -33,7 +33,7 @@ reg_3v3_dp: regulator-3v3-dp {
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_gpio_21_dp>;
 		/* Aquila GPIO_21_DP (AQUILA B57) */
-		gpio = <&main_gpio0 37 GPIO_ACTIVE_HIGH>;
+		gpio = <&main_gpio0 21 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 		regulator-max-microvolt = <3300000>;
 		regulator-min-microvolt = <3300000>;
-- 
2.43.0



  reply	other threads:[~2026-02-02  8:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-02  8:35 [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP enable GPIO Franz Schnyder
2026-02-02  8:36 ` Franz Schnyder [this message]
2026-02-02  8:36 ` [PATCH v1 2/2] arm64: dts: ti: k3-am69-aquila-clover: Fix DP regulator " Franz Schnyder
2026-02-02  9:12 ` [PATCH v1 0/2] arm64: dts: ti: k3-am69-aquila: Fix DP " Francesco Dolcini
2026-03-13  7:46 ` Vignesh Raghavendra

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