openwrt/target/linux/bcm27xx/patches-5.15/950-0785-dtoverlays-Connect-the-backlight-to-the-pitft35-disp.patch

From 8be4bcd743bb37336f83979fe0834ad601446a13 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Mon, 21 Mar 2022 18:27:45 +0000
Subject: [PATCH] dtoverlays: Connect the backlight to the pitft35
 display

DRM will automatically handle the backlight with the display if
told about the linking, so link the two together.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts
+++ b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts
@@ -102,7 +102,7 @@
 	fragment@5 {
 		target-path = "/soc";
 		__overlay__ {
-			backlight {
+			backlight: backlight {
 				compatible = "gpio-backlight";
 				gpios = <&stmpe_gpio 2 0>;
 				default-on;
@@ -115,6 +115,7 @@
 		rotate =  <&pitft>,"rotate:0";
 		fps =     <&pitft>,"fps:0";
 		debug =   <&pitft>,"debug:0";
-		drm =     <&pitft>,"compatible=adafruit,yx350hv15";
+		drm =     <&pitft>,"compatible=adafruit,yx350hv15",
+			  <&pitft>,"backlight:0=",<&backlight>;
 	};
 };