xref: /linux/Documentation/devicetree/bindings/sound/fsl,imx-audio-es8328.yaml (revision c771600c6af14749609b49565ffb4cac2959710d)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/fsl,imx-audio-es8328.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX audio complex with ES8328 codec

maintainers:
  - Shawn Guo <shawnguo@kernel.org>
  - Sascha Hauer <s.hauer@pengutronix.de>

allOf:
  - $ref: sound-card-common.yaml#

properties:
  compatible:
    const: fsl,imx-audio-es8328

  model:
    $ref: /schemas/types.yaml#/definitions/string
    description: The user-visible name of this sound complex

  ssi-controller:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: The phandle of the i.MX SSI controller

  jack-gpio:
    description: Optional GPIO for headphone jack
    maxItems: 1

  audio-amp-supply:
    description: Power regulator for speaker amps

  audio-codec:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: The phandle to the ES8328 audio codec

  audio-routing:
    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
    description: |
      A list of the connections between audio components. Each entry
      is a pair of strings, the first being the connection's sink, the second
      being the connection's source. Valid names could be power supplies,
      ES8328 pins, and the jacks on the board:

      Power supplies:
        * audio-amp

      ES8328 pins:
        * LOUT1
        * LOUT2
        * ROUT1
        * ROUT2
        * LINPUT1
        * LINPUT2
        * RINPUT1
        * RINPUT2
        * Mic PGA

      Board connectors:
        * Headphone
        * Speaker
        * Mic Jack

  mux-int-port:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: The internal port of the i.MX audio muxer (AUDMUX)
    enum: [1, 2, 7]
    default: 1

  mux-ext-port:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: The external port of the i.MX audio muxer (AUDMIX)
    enum: [3, 4, 5, 6]
    default: 3

required:
  - compatible
  - model
  - ssi-controller
  - jack-gpio
  - audio-amp-supply
  - audio-codec
  - audio-routing
  - mux-int-port
  - mux-ext-port

unevaluatedProperties: false

examples:
  - |
    sound {
        compatible = "fsl,imx-audio-es8328";
        model = "imx-audio-es8328";
        ssi-controller = <&ssi1>;
        audio-codec = <&codec>;
        jack-gpio = <&gpio5 15 0>;
        audio-amp-supply = <&reg_audio_amp>;
        audio-routing =
            "Speaker", "LOUT2",
            "Speaker", "ROUT2",
            "Speaker", "audio-amp",
            "Headphone", "ROUT1",
            "Headphone", "LOUT1",
            "LINPUT1", "Mic Jack",
            "RINPUT1", "Mic Jack",
            "Mic Jack", "Mic Bias";
        mux-int-port = <1>;
        mux-ext-port = <3>;
    };