Merge tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh...

[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / leds / backlight / gpio-backlight.txt

diff --git a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.txt
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index 0000000..321be66
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+++ b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.txt
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+gpio-backlight bindings
+
+Required properties:
+  - compatible: "gpio-backlight"
+  - gpios: describes the gpio that is used for enabling/disabling the backlight.
+    refer to bindings/gpio/gpio.txt for more details.
+
+Optional properties:
+  - default-on: enable the backlight at boot.
+
+Example:
+       backlight {
+               compatible = "gpio-backlight";
+               gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
+               default-on;
+       };