xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/clock/qcom,kpss-gcc.yaml

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

title: Krait Processor Sub-system (KPSS) Global Clock Controller (GCC)

maintainers:
  - Christian Marangi <ansuelsmth@gmail.com>

description:
  Krait Processor Sub-system (KPSS) Global Clock Controller (GCC). Used
  to control L2 mux (in the current implementation) and provide access
  to the kpss-gcc registers.

properties:
  compatible:
    items:
      - enum:
          - qcom,kpss-gcc-ipq8064
          - qcom,kpss-gcc-apq8064
          - qcom,kpss-gcc-msm8974
          - qcom,kpss-gcc-msm8960
          - qcom,kpss-gcc-msm8660
          - qcom,kpss-gcc-mdm9615
      - const: qcom,kpss-gcc
      - const: syscon

  reg:
    maxItems: 1

  clocks:
    minItems: 2
    maxItems: 2

  clock-names:
    items:
      - const: pll8_vote
      - const: pxo

  '#clock-cells':
    const: 0

required:
  - compatible
  - reg

if:
  properties:
    compatible:
      contains:
        enum:
          - qcom,kpss-gcc-ipq8064
          - qcom,kpss-gcc-apq8064
          - qcom,kpss-gcc-msm8974
          - qcom,kpss-gcc-msm8960
then:
  required:
    - clocks
    - clock-names
    - '#clock-cells'
else:
  properties:
    clock: false
    clock-names: false
    '#clock-cells': false

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-ipq806x.h>

    clock-controller@2011000 {
      compatible = "qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc", "syscon";
      reg = <0x2011000 0x1000>;
      clocks = <&gcc PLL8_VOTE>, <&pxo_board>;
      clock-names = "pll8_vote", "pxo";
      #clock-cells = <0>;
    };

  - |
    clock-controller@2011000 {
      compatible = "qcom,kpss-gcc-mdm9615", "qcom,kpss-gcc", "syscon";
      reg = <0x02011000 0x1000>;
    };
...