Unverified Commit 8a5a0558 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Mark Brown
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ASoC: dt-bindings: maxim,max98357a: Convert to DT schema 



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: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221203160442.69594-3-krzysztof.kozlowski@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 58ae9a2a

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>;

};

Documentation/devicetree/bindings/sound/maxim,max98357a.yaml

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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>;

    };