| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd2801.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Kinetic Technologies KTD2801 one-wire backlight |
| 8 | |
| 9 | maintainers: |
| 10 | - Duje Mihanović <duje.mihanovic@skole.hr> |
| 11 | |
| 12 | description: | |
| 13 | The Kinetic Technologies KTD2801 is a LED backlight driver controlled |
| 14 | by a single GPIO line. The driver can be controlled with a PWM signal |
| 15 | or by pulsing the GPIO line to set the backlight level. This is called |
| 16 | "ExpressWire". |
| 17 | |
| 18 | allOf: |
| 19 | - $ref: common.yaml# |
| 20 | |
| 21 | properties: |
| 22 | compatible: |
| 23 | const: kinetic,ktd2801 |
| 24 | |
| 25 | ctrl-gpios: |
| 26 | maxItems: 1 |
| 27 | |
| 28 | default-brightness: true |
| 29 | max-brightness: true |
| 30 | |
| 31 | required: |
| 32 | - compatible |
| 33 | - ctrl-gpios |
| 34 | |
| 35 | additionalProperties: false |
| 36 | |
| 37 | examples: |
| 38 | - | |
| 39 | #include <dt-bindings/gpio/gpio.h> |
| 40 | |
| 41 | backlight { |
| 42 | compatible = "kinetic,ktd2801"; |
| 43 | ctrl-gpios = <&gpio 97 GPIO_ACTIVE_HIGH>; |
| 44 | max-brightness = <210>; |
| 45 | default-brightness = <100>; |
| 46 | }; |