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