From: Philippe Schenker <philippe.schenker@toradex.com>
Date: Fri, 31 Oct 2025 12:49:41 +0000 (+0100)
Subject: arm64: dts: colibri-imx8x: Add backlight
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d703856872d5b875f46d1a781af1df6795780c20;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: colibri-imx8x: Add backlight

Add a backlight node to colibri-imx8x. The node can be enabled from
an overlay once display output is implemented.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
index 014808774b0e9..b19900b2272a0 100644
--- a/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8x-colibri.dtsi
@@ -3,7 +3,21 @@
  * Copyright 2019 Toradex
  */
 
+#include "dt-bindings/pwm/pwm.h"
+
 / {
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_bl_on>;
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		enable-gpios = <&lsio_gpio3 12 GPIO_ACTIVE_HIGH>; /* Colibri BL_ON */
+		power-supply = <&reg_module_3v3>;
+		pwms = <&adma_pwm 0 6666667 PWM_POLARITY_INVERTED>;
+		status = "disabled";
+	};
+
 	chosen {
 		stdout-path = &lpuart3;
 	};