ARM: dts: bcm2711-rpi-4-b: Add support backlight

Add DTs to support the official RPI touchscreen backlight.

Change-Id: I8bc242124575dc4c57b0d71e68415fd3485799a0
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 525553e..5274f0f 100644 (file)
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -28,6 +28,12 @@
                blconfig = &blconfig;
        };
 
+       rpi_backlight: rpi_backlight {
+               compatible = "raspberrypi,rpi-backlight";
+               firmware = <&firmware>;
+               status = "okay";
+       };
+
        rpi_ft5406: rpi_ft5406 {
                compatible = "rpi,rpi-ft5406";
                firmware = <&firmware>;