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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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44e04fb8d6
Optional default-brightness property specifies brightness value to be used if default LED state is on. Signed-off-by: George Stark <gnstark@salutedevices.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20241105185006.1380166-2-gnstark@salutedevices.com Signed-off-by: Lee Jones <lee@kernel.org>
72 lines
1.6 KiB
YAML
72 lines
1.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: LEDs connected to PWM
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maintainers:
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- Pavel Machek <pavel@ucw.cz>
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description:
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Each LED is represented as a sub-node of the pwm-leds device. Each
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node's name represents the name of the corresponding LED.
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properties:
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compatible:
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const: pwm-leds
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patternProperties:
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"^led(-[0-9a-f]+)?$":
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type: object
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$ref: common.yaml#
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unevaluatedProperties: false
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properties:
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pwms:
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maxItems: 1
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pwm-names: true
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max-brightness:
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description:
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Maximum brightness possible for the LED
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$ref: /schemas/types.yaml#/definitions/uint32
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default-brightness:
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description:
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Brightness to be set if LED's default state is on. Used only during
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initialization. If the option is not set then max brightness is used.
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$ref: /schemas/types.yaml#/definitions/uint32
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required:
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- pwms
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- max-brightness
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/leds/common.h>
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led-controller {
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compatible = "pwm-leds";
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led-1 {
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label = "omap4::keypad";
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pwms = <&twl_pwm 0 7812500>;
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max-brightness = <127>;
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};
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led-2 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_CHARGING;
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pwms = <&twl_pwmled 0 7812500>;
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max-brightness = <255>;
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};
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};
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...
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