55 lines
1.3 KiB
YAML
55 lines
1.3 KiB
YAML
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# 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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$id: http://devicetree.org/schemas/sound/awinic,aw8738.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Awinic AW8738 Audio Amplifier
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maintainers:
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- Stephan Gerhold <stephan@gerhold.net>
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description:
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The Awinic AW8738 is a simple audio amplifier with different operation modes
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(set using one-wire pulse control). The mode configures the speaker-guard
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function (primarily the power limit for the amplifier).
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allOf:
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- $ref: name-prefix.yaml#
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properties:
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compatible:
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const: awinic,aw8738
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mode-gpios:
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description:
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GPIO used for one-wire pulse control. The pin is typically called SHDN
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(active-low), but this is misleading since it is actually more than
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just a simple shutdown/enable control.
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maxItems: 1
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awinic,mode:
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description: Operation mode (number of pulses for one-wire pulse control)
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 1
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maximum: 7
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sound-name-prefix: true
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required:
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- compatible
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- mode-gpios
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- awinic,mode
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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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audio-amplifier {
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compatible = "awinic,aw8738";
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mode-gpios = <&msmgpio 114 GPIO_ACTIVE_HIGH>;
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awinic,mode = <5>;
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sound-name-prefix = "Speaker Amp";
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};
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