Unverified Commit 83759352 authored by Francesco Dolcini's avatar Francesco Dolcini Committed by Mark Brown
Browse files

ASoC: dt-bindings: wm8904: Convert to dtschema 

Convert the WM8904 audio CODEC bindings to DT schema.

Compared to the original binding #sound-dai-cells and the missing power
supplies are added. The latter are all required as described in the
datasheet.

Datasheet: https://statics.cirrus.com/pubs/proDatasheet/WM8904_Rev4.1.pdf


Signed-off-by: default avatarFrancesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230719121918.247397-1-francesco@dolcini.it


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 65bc25b8

Documentation/devicetree/bindings/sound/wlf,wm8904.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/wlf,wm8904.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Wolfson WM8904/WM8912 audio codecs



maintainers:

  - patches@opensource.cirrus.com



description: |

  Pins on the device (for linking into audio routes):

  IN1L, IN1R, IN2L, IN2R, IN3L, IN3R, HPOUTL, HPOUTR, LINEOUTL, LINEOUTR,

  MICBIAS



properties:

  compatible:

    enum:

      - wlf,wm8904

      - wlf,wm8912



  reg:

    maxItems: 1



  "#sound-dai-cells":

    const: 0



  clocks:

    maxItems: 1



  clock-names:

    const: mclk



  AVDD-supply: true

  CPVDD-supply: true

  DBVDD-supply: true

  DCVDD-supply: true

  MICVDD-supply: true



required:

  - compatible

  - reg

  - clocks

  - clock-names

  - AVDD-supply

  - CPVDD-supply

  - DBVDD-supply

  - DCVDD-supply

  - MICVDD-supply



allOf:

  - $ref: dai-common.yaml#



unevaluatedProperties: false



examples:

  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        codec@1a {

            compatible = "wlf,wm8904";

            reg = <0x1a>;

            clocks = <&pck0>;

            clock-names = "mclk";

            AVDD-supply = <&reg_1p8v>;

            CPVDD-supply = <&reg_1p8v>;

            DBVDD-supply = <&reg_1p8v>;

            DCVDD-supply = <&reg_1p8v>;

            MICVDD-supply = <&reg_1p8v>;

        };

    };

Documentation/devicetree/bindings/sound/wm8904.txt

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WM8904 audio CODEC



This device supports I2C only.



Required properties:

  - compatible: "wlf,wm8904" or "wlf,wm8912"

  - reg: the I2C address of the device.

  - clock-names: "mclk"

  - clocks: reference to

    <Documentation/devicetree/bindings/clock/clock-bindings.txt>



Pins on the device (for linking into audio routes):



  * IN1L

  * IN1R

  * IN2L

  * IN2R

  * IN3L

  * IN3R

  * HPOUTL

  * HPOUTR

  * LINEOUTL

  * LINEOUTR

  * MICBIAS



Examples:



codec: wm8904@1a {

	compatible = "wlf,wm8904";

	reg = <0x1a>;

	clocks = <&pck0>;

	clock-names = "mclk";

};