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ASoC: dt-bindings: maxim,max98357a: Convert to DT schema

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Convert the Maxim Integrated MAX98357A/MAX98360A amplifier bindings to
DT schema.  Add missing properties ('#sound-dai-cells' and
'sound-name-prefix' from common DAI properties).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221203160442.69594-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Krzysztof Kozlowski 2022-12-03 17:04:42 +01:00 committed by Mark Brown
parent 58ae9a2aca
commit 8a5a05583a
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2 changed files with 52 additions and 28 deletions
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Documentation/devicetree/bindings/sound/max98357a.txt
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Maxim MAX98357A/MAX98360A audio DAC
This node models the Maxim MAX98357A/MAX98360A DAC.
Required properties:
- compatible : "maxim,max98357a" for MAX98357A.
"maxim,max98360a" for MAX98360A.
Optional properties:
- sdmode-gpios : GPIO specifier for the chip's SD_MODE pin.
If this option is not specified then driver does not manage
the pin state (e.g. chip is always on).
- sdmode-delay : specify delay time for SD_MODE pin.
If this option is specified, which means it's required i2s clocks
ready before SD_MODE is unmuted in order to avoid the speaker pop noise.
It's observed that 5ms is sufficient.
Example:
max98357a {
compatible = "maxim,max98357a";
sdmode-gpios = <&qcom_pinmux 25 0>;
};
max98360a {
compatible = "maxim,max98360a";
sdmode-gpios = <&qcom_pinmux 25 0>;
};

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Documentation/devicetree/bindings/sound/maxim,max98357a.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/maxim,max98357a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim Integrated MAX98357A/MAX98360A amplifier
maintainers:
- Tzung-Bi Shih <tzungbi@kernel.org>
description:
Maxim Integrated MAX98357A/MAX98360A is a digital pulse-code modulation (PCM)
input Class D amplifier.
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
enum:
- maxim,max98357a
- maxim,max98360a
'#sound-dai-cells':
const: 0
sdmode-gpios:
maxItems: 1
description:
Chip's SD_MODE pin. If missing the chip is always on.
sdmode-delay:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Delay time for SD_MODE pin changes intended to make I2S clocks ready
before SD_MODE is unmuted in order to avoid the speaker pop noise.
required:
- compatible
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
amplifier {
compatible = "maxim,max98360a";
#sound-dai-cells = <0>;
sdmode-gpios = <&qcom_pinmux 25 GPIO_ACTIVE_HIGH>;
};