xref: /openbmc/linux/Documentation/devicetree/bindings/clock/samsung,s5pv210-clock.yaml (revision 8a1e6bb3)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/samsung,s5pv210-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung S5P6442/S5PC110/S5PV210 SoC 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: |
  Expected external clocks, defined in DTS as fixed-rate clocks with a matching
  name::
    - "xxti" - external crystal oscillator connected to XXTI and XXTO pins of
      the SoC,
    - "xusbxti" - external crystal oscillator connected to XUSBXTI and XUSBXTO
      pins of the SoC,

  All available clocks are defined as preprocessor macros in
  include/dt-bindings/clock/s5pv210.h header.

properties:
  compatible:
    enum:
      - samsung,s5pv210-clock
      - samsung,s5p6442-clock

  clocks:
    items:
      - description: xxti clock
      - description: xusbxti clock

  clock-names:
    items:
      - const: xxti
      - const: xusbxti

  "#clock-cells":
    const: 1

  reg:
    maxItems: 1

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

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/s5pv210.h>

    xxti: clock-0 {
        compatible = "fixed-clock";
        clock-frequency = <0>;
        clock-output-names = "xxti";
        #clock-cells = <0>;
    };

    xusbxti: clock-1 {
        compatible = "fixed-clock";
        clock-frequency = <0>;
        clock-output-names = "xusbxti";
        #clock-cells = <0>;
    };

    clock-controller@e0100000 {
        compatible = "samsung,s5pv210-clock";
        reg = <0xe0100000 0x10000>;
        clock-names = "xxti", "xusbxti";
        clocks = <&xxti>, <&xusbxti>;
        #clock-cells = <1>;
    };