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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd253.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Kinetic Technologies KTD253 one-wire backlight
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description: |
The Kinetic Technologies KTD253 is a white LED backlight that is
controlled by a single GPIO line. If you just turn on the backlight
it goes to maximum backlight then you can set the level of backlight
using pulses on the enable wire. This is sometimes referred to as
"expresswire".
allOf:
- $ref: common.yaml#
properties:
compatible:
const: kinetic,ktd253
enable-gpios:
description: GPIO to use to enable/disable and dim the backlight.
maxItems: 1
default-brightness: true
max-brightness: true
required:
- compatible
- enable-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
backlight {
compatible = "kinetic,ktd253";
enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
default-brightness = <13>;
};
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