| # 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>; |
| }; |
