xref: /openbmc/linux/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml (revision 6b6f5ea7)

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

title: Amlogic AXG Audio FIFO controllers

maintainers:
  - Jerome Brunet <jbrunet@baylibre.com>

properties:
  compatible:
    oneOf:
      - enum:
          - amlogic,axg-toddr
          - amlogic,axg-frddr
      - items:
          - enum:
              - amlogic,g12a-toddr
              - amlogic,sm1-toddr
          - const: amlogic,axg-toddr
      - items:
          - enum:
              - amlogic,g12a-frddr
              - amlogic,sm1-frddr
          - const: amlogic,axg-frddr

  reg:
    maxItems: 1

  "#sound-dai-cells":
    const: 0

  clocks:
    items:
      - description: Peripheral clock

  interrupts:
    maxItems: 1

  resets:
    minItems: 1
    maxItems: 2

  reset-names:
    minItems: 1
    maxItems: 2

  amlogic,fifo-depth:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: Size of the controller's fifo in bytes

required:
  - compatible
  - reg
  - "#sound-dai-cells"
  - clocks
  - interrupts
  - resets
  - amlogic,fifo-depth

allOf:
  - $ref: dai-common.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - amlogic,g12a-toddr
              - amlogic,sm1-toddr
              - amlogic,g12a-frddr
              - amlogic,sm1-frddr

    then:
      properties:
        resets:
          minItems: 2
        reset-names:
          items:
            - const: arb
            - const: rst
      required:
        - reset-names

    else:
      properties:
        resets:
          maxItems: 1
        reset-names:
          const: arb

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/axg-audio-clkc.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
    #include <dt-bindings/reset/amlogic,meson-g12a-audio-reset.h>

    audio-controller@1c0 {
        compatible = "amlogic,g12a-frddr", "amlogic,axg-frddr";
        reg = <0x1c0 0x1c>;
        #sound-dai-cells = <0>;
        clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
        interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
        resets = <&arb>, <&clkc_audio AUD_RESET_FRDDR_A>;
        reset-names = "arb", "rst";
        amlogic,fifo-depth = <512>;
    };