Unverified Commit 5bd5699c authored by Maxime Ripard's avatar Maxime Ripard Committed by Mark Brown
Browse files

ASoC: dt-bindings: Add WM8978 Binding 



Even though we had the wm8978 driver for some time and a number of
boards using it already, we never had a binding for it. Let's add it
based on what the driver expects and the boards are providing.

Cc: alsa-devel@alsa-project.org
Cc: devicetree@vger.kernel.org
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: patches@opensource.cirrus.com
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Acked-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210901091852.479202-2-maxime@cerno.tech


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0c7985e1

Documentation/devicetree/bindings/sound/wlf,wm8978.yaml

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+58 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/sound/wlf,wm8978.yaml#

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



title: Wolfson WM8978 Codec Device Tree Bindings



maintainers:

  - patches@opensource.cirrus.com



properties:

  '#sound-dai-cells':

    const: 0



  compatible:

    const: wlf,wm8978



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 526000



required:

  - '#sound-dai-cells'

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        codec@0 {

            #sound-dai-cells = <0>;

            compatible = "wlf,wm8978";

            reg = <0>;

            spi-max-frequency = <500000>;

        };

    };



  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        codec@0 {

            #sound-dai-cells = <0>;

            compatible = "wlf,wm8978";

            reg = <0>;

        };

    };



...