ASoC: meson: g12a: add toacodec dt-binding documentation

# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/sound/amlogic,g12a-toacodec.yaml#

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

title: Amlogic G12a Internal DAC Control Glue

maintainers:

  - Jerome Brunet <jbrunet@baylibre.com>

properties:

  $nodename:

    pattern: "^audio-controller@.*"

  "#sound-dai-cells":

    const: 1

  compatible:

    oneOf:

      - items:

        - const:

            amlogic,g12a-toacodec

      - items:

        - enum:

          - amlogic,sm1-toacodec

        - const:

            amlogic,g12a-toacodec

  reg:

    maxItems: 1

  resets:

    maxItems: 1

required:

  - "#sound-dai-cells"

  - compatible

  - reg

  - resets

examples:

  - |

    #include <dt-bindings/reset/amlogic,meson-g12a-audio-reset.h>

    toacodec: audio-controller@740 {

        compatible = "amlogic,g12a-toacodec";

        reg = <0x0 0x740 0x0 0x4>;

        #sound-dai-cells = <1>;

        resets = <&clkc_audio AUD_RESET_TOACODEC>;

    };

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __DT_MESON_G12A_TOACODEC_H

#define __DT_MESON_G12A_TOACODEC_H

#define TOACODEC_IN_A	0

#define TOACODEC_IN_B	1

#define TOACODEC_IN_C	2

#define TOACODEC_OUT	3

#endif /* __DT_MESON_G12A_TOACODEC_H */