1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd253.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Kinetic Technologies KTD253 one-wire backlight
10 - Linus Walleij <linus.walleij@linaro.org>
13 The Kinetic Technologies KTD253 is a white LED backlight that is
14 controlled by a single GPIO line. If you just turn on the backlight
15 it goes to maximum backlight then you can set the level of backlight
16 using pulses on the enable wire. This is sometimes referred to as
27 description: GPIO to use to enable/disable and dim the backlight.
30 default-brightness: true
37 additionalProperties: false
41 #include <dt-bindings/gpio/gpio.h>
43 compatible = "kinetic,ktd253";
44 enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
45 default-brightness = <13>;