xref: /linux/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.yaml (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
$id: http://devicetree.org/schemas/reset/amlogic,meson-axg-audio-arb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic audio memory arbiter controller

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

description: The Amlogic Audio ARB is a simple device which enables or disables
  the access of Audio FIFOs to DDR on AXG based SoC.

properties:
  compatible:
    enum:
      - amlogic,meson-axg-audio-arb
      - amlogic,meson-sm1-audio-arb

  reg:
    maxItems: 1

  clocks:
    maxItems: 1
    description: |
      phandle to the fifo peripheral clock provided by the audio clock
      controller.

  "#reset-cells":
    const: 1

required:
  - compatible
  - reg
  - clocks
  - "#reset-cells"

additionalProperties: false

examples:
  - |
    // on the A113 SoC:
    #include <dt-bindings/clock/axg-audio-clkc.h>
    bus {
        #address-cells = <2>;
        #size-cells = <2>;

        arb: reset-controller@280 {
            compatible = "amlogic,meson-axg-audio-arb";
            reg = <0x0 0x280 0x0 0x4>;
            #reset-cells = <1>;
            clocks = <&clkc_audio AUD_CLKID_DDR_ARB>;
        };
    };