From 164cb0d61a3fd0d9376005aae3b112a3dbba2e07 Mon Sep 17 00:00:00 2001
From: Stefano Radaelli <stefano.r@variscite.com>
Date: Mon, 6 Jul 2026 11:34:43 +0200
Subject: [PATCH] arm64: dts: imx8mn-var-som-symphony: keep RGB_SEL low

Keep the RGB_SEL line driven low on the Symphony carrier board.

This avoids leaving the line floating and ensures the board remains in
the expected display configuration.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
index c98dca8e7889..ddd4651b35d7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
@@ -168,6 +168,14 @@ pca6408: gpio@21 {
 		reg = <0x21>;
 		gpio-controller;
 		#gpio-cells = <2>;
+
+		/* RGB_SEL */
+		lvds-brg-enable-hog {
+			gpio-hog;
+			gpios = <7 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "rgb_sel";
+		};
 	};
 
 	st33ktpm2xi2c: tpm@2e {