Add DT binding for led-backlight. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx --- .../bindings/video/backlight/led-backlight.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/led-backlight.txt diff --git a/Documentation/devicetree/bindings/video/backlight/led-backlight.txt b/Documentation/devicetree/bindings/video/backlight/led-backlight.txt new file mode 100644 index 000000000000..d4621d7414bc --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/led-backlight.txt @@ -0,0 +1,30 @@ +led-backlight bindings + +Required properties: + - compatible: "led-backlight" + - leds: phandle to a led OF node [0] + - brightness-levels: Array of distinct LED brightness levels. These + are in the range from 0 to 255, passed to the LED class driver. + - default-brightness-level: the default brightness level (index into the + array defined by the "brightness-levels" property) + +Optional properties: + - power-supply: regulator for supply voltage + - enable-gpios: contains a single GPIO specifier for the GPIO which enables + and disables the backlight (see GPIO binding[1]) + +[0]: Documentation/devicetree/bindings/leds/common.txt +[1]: Documentation/devicetree/bindings/gpio/gpio.txt + +Example: + + backlight { + compatible = "led-backlight"; + leds = <&backlight_led>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <6>; + + power-supply = <&vdd_bl_reg>; + enable-gpios = <&gpio 58 0>; + }; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html