xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/clock/samsung,exynos-audss-clock.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/samsung,exynos-audss-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung Exynos SoC Audio SubSystem clock controller

maintainers:
  - Chanwoo Choi <cw00.choi@samsung.com>
  - Krzysztof Kozlowski <krzk@kernel.org>
  - Sylwester Nawrocki <s.nawrocki@samsung.com>
  - Tomasz Figa <tomasz.figa@gmail.com>

description: |
  All available clocks are defined as preprocessor macros in
  include/dt-bindings/clock/exynos-audss-clk.h header.

properties:
  compatible:
    enum:
      - samsung,exynos4210-audss-clock
      - samsung,exynos5250-audss-clock
      - samsung,exynos5410-audss-clock
      - samsung,exynos5420-audss-clock

  clocks:
    minItems: 2
    items:
      - description:
          Fixed rate PLL reference clock, parent of mout_audss. "fin_pll" is
          used if not specified.
      - description:
          Input PLL to the AudioSS block, parent of mout_audss. "fout_epll" is
          used if not specified.
      - description:
          Audio bus clock, parent of mout_i2s. "sclk_audio0" is used if not
          specified.
      - description:
          PCM clock, parent of sclk_pcm.  "sclk_pcm0" is used if not specified.
      - description:
          External i2s clock, parent of mout_i2s. "cdclk0" is used if not
          specified.

  clock-names:
    minItems: 2
    items:
      - const: pll_ref
      - const: pll_in
      - const: sclk_audio
      - const: sclk_pcm_in
      - const: cdclk

  "#clock-cells":
    const: 1

  power-domains:
    maxItems: 1

  reg:
    maxItems: 1

required:
  - compatible
  - clocks
  - clock-names
  - "#clock-cells"
  - reg

additionalProperties: false

examples:
  - |
    clock-controller@3810000 {
        compatible = "samsung,exynos5250-audss-clock";
        reg = <0x03810000 0x0c>;
        #clock-cells = <1>;
        clocks = <&clock 1>, <&clock 7>, <&clock 138>, <&clock 160>, <&ext_i2s_clk>;
        clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in", "cdclk";
    };