# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/loongson,ls1b-ac97.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Loongson-1 AC97 Controller

maintainers:
  - Keguang Zhang <keguang.zhang@gmail.com>

description:
  The Loongson-1 AC97 controller supports 2-channel stereo output and input.
  It is paired with the DMA engine to handle playback and capture functions.

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

properties:
  compatible:
    oneOf:
      - const: loongson,ls1b-ac97
      - items:
          - enum:
              - loongson,ls1a-ac97
              - loongson,ls1c-ac97
          - const: loongson,ls1b-ac97

  reg:
    maxItems: 3

  reg-names:
    items:
      - const: ac97
      - const: audio-tx
      - const: audio-rx

  dmas:
    maxItems: 2

  dma-names:
    items:
      - const: tx
      - const: rx
 
  '#sound-dai-cells':
    const: 0

required:
  - compatible
  - reg
  - reg-names
  - dmas
  - dma-names
  - '#sound-dai-cells'

unevaluatedProperties: false

examples:
  - |
    audio-controller@1fe74000 {
        compatible = "loongson,ls1b-ac97";
        reg = <0x1fe74000 0x60>, <0x1fe72420 0x4>, <0x1fe74c4c 0x4>;
        reg-names = "ac97", "audio-tx", "audio-rx";
        dmas = <&dma 1>, <&dma 2>;
        dma-names = "tx", "rx";
        #sound-dai-cells = <0>;
    };