xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-mvc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Tegra210 MVC

description: |
  The Master Volume Control (MVC) provides gain or attenuation to a digital
  signal path. It can be used in input or output signal path for per-stream
  volume control or it can be used as master volume control. The MVC block
  has one input and one output. The input digital stream can be mono or
  multi-channel (up to 7.1 channels) stream. An independent mute control is
  also included in the MVC block.

maintainers:
  - Jon Hunter <jonathanh@nvidia.com>
  - Mohan Kumar <mkumard@nvidia.com>
  - Sameer Pujar <spujar@nvidia.com>

allOf:
  - $ref: dai-common.yaml#

properties:
  $nodename:
    pattern: "^mvc@[0-9a-f]*$"

  compatible:
    oneOf:
      - const: nvidia,tegra210-mvc
      - items:
          - enum:
              - nvidia,tegra234-mvc
              - nvidia,tegra194-mvc
              - nvidia,tegra186-mvc
          - const: nvidia,tegra210-mvc

  reg:
    maxItems: 1

  sound-name-prefix:
    pattern: "^MVC[1-9]$"

  ports:
    $ref: /schemas/graph.yaml#/properties/ports
    properties:
      port@0:
        $ref: audio-graph-port.yaml#
        unevaluatedProperties: false
        description: |
          MVC ACIF (Audio Client Interface) input port. This is connected
          to corresponding ACIF output port on AHUB (Audio Hub).

      port@1:
        $ref: audio-graph-port.yaml#
        unevaluatedProperties: false
        description: |
          MVC ACIF output port. This is connected to corresponding ACIF
          input port on AHUB.

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |

    mvc@702da000 {
        compatible = "nvidia,tegra210-mvc";
        reg = <0x702da000 0x200>;
        sound-name-prefix = "MVC1";
    };

...