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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,ktd2801.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Kinetic Technologies KTD2801 one-wire backlight
maintainers:
- Duje Mihanović <duje.mihanovic@skole.hr>
description: |
The Kinetic Technologies KTD2801 is a LED backlight driver controlled
by a single GPIO line. The driver can be controlled with a PWM signal
or by pulsing the GPIO line to set the backlight level. This is called
"ExpressWire".
allOf:
- $ref: common.yaml#
properties:
compatible:
const: kinetic,ktd2801
ctrl-gpios:
maxItems: 1
default-brightness: true
max-brightness: true
required:
- compatible
- ctrl-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
backlight {
compatible = "kinetic,ktd2801";
ctrl-gpios = <&gpio 97 GPIO_ACTIVE_HIGH>;
max-brightness = <210>;
default-brightness = <100>;
};
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