add backlight control to media-center overlay

diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index f876876eb982bd4dba79f020f4c88a56416058c3..d27d4befda3dd322af624170b4bdaa009df870ca 100644 (file)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -991,6 +991,7 @@ Params: speed                   Display SPI bus speed
         fps                     Delay between frame updates
         xohms                   Touchpanel sensitivity (X-plate resistance)
         swapxy                  Swap x and y axis
+        backlight               Change backlight GPIO pin {e.g. 12, 18}
         gpio_out_pin            GPIO for output (default "17")
         gpio_in_pin             GPIO for input (default "18")
         gpio_in_pull            Pull up/down/off on the input pin

diff --git a/arch/arm/boot/dts/overlays/media-center-overlay.dts b/arch/arm/boot/dts/overlays/media-center-overlay.dts
index 7572d2e0d8e7f7cb1df1e095731044f8a6e2b43a..ce4db35228e9f68e3f3f40f0f9c02f89912c11d3 100644 (file)
--- a/arch/arm/boot/dts/overlays/media-center-overlay.dts
+++ b/arch/arm/boot/dts/overlays/media-center-overlay.dts
@@ -113,13 +113,15 @@
        };
 
        __overrides__ {
-               speed =   <&rpidisplay>,"spi-max-frequency:0";
-               rotate =  <&rpidisplay>,"rotate:0";
-               fps =     <&rpidisplay>,"fps:0";
-               debug =   <&rpidisplay>,"debug:0", 
-                         <&lirc_rpi>,"rpi,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", 
+                           <&lirc_rpi>,"rpi,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";
 
                gpio_out_pin =  <&lirc_pins>,"brcm,pins:0";
                gpio_in_pin =   <&lirc_pins>,"brcm,pins:4";