From: Aaron Shaw <shawaj@gmail.com>
Date: Thu, 28 Dec 2017 17:31:52 +0000 (+0000)
Subject: add backlight control to rpi-display overlay
X-Git-Tag: archive/raspbian/4.9.82-1+deb9u3+rpi1_jessie~5^2~50
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=e16072f61cbdee8982f8c4635fffb58d590844e8;p=linux-4.9.git

add backlight control to rpi-display overlay
---

diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index a1a46deea45b..f876876eb982 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1305,6 +1305,7 @@ Params: speed                   Display SPI bus speed
         debug                   Debug output level {0-7}
         xohms                   Touchpanel sensitivity (X-plate resistance)
         swapxy                  Swap x and y axis
+        backlight               Change backlight GPIO pin {e.g. 12, 18}
 
 
 Name:   rpi-ft5406
diff --git a/arch/arm/boot/dts/overlays/rpi-display-overlay.dts b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
index d7e72eef594e..533b5c140b54 100644
--- a/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
+++ b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
@@ -79,11 +79,13 @@
 		};
 	};
 	__overrides__ {
-		speed =   <&rpidisplay>,"spi-max-frequency:0";
-		rotate =  <&rpidisplay>,"rotate:0";
-		fps =     <&rpidisplay>,"fps:0";
-		debug =   <&rpidisplay>,"debug:0";
-		xohms =   <&rpidisplay_ts>,"ti,x-plate-ohms;0";
-		swapxy =  <&rpidisplay_ts>,"ti,swap-xy?";
+		speed =     <&rpidisplay>,"spi-max-frequency:0";
+		rotate =    <&rpidisplay>,"rotate:0";
+		fps =       <&rpidisplay>,"fps:0";
+		debug =     <&rpidisplay>,"debug:0";
+		xohms =     <&rpidisplay_ts>,"ti,x-plate-ohms;0";
+		swapxy =    <&rpidisplay_ts>,"ti,swap-xy?";
+		backlight = <&rpidisplay>,"led-gpios:4",
+		            <&rpi_display_pins>,"brcm,pins:0";
 	};
 };