Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.2 KiB
YAML
50 lines
1.2 KiB
YAML
# 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 and KTD259 one-wire backlight
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maintainers:
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- Linus Walleij <linusw@kernel.org>
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description: |
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The Kinetic Technologies KTD253 and KTD259 are white LED backlights
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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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items:
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- enum:
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- kinetic,ktd253
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- kinetic,ktd259
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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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