xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/interconnect/qcom,qcm2290.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interconnect/qcom,qcm2290.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm QCM2290 Network-On-Chip interconnect

maintainers:
  - Shawn Guo <shawn.guo@linaro.org>

description: |
  The Qualcomm QCM2290 interconnect providers support adjusting the
  bandwidth requirements between the various NoC fabrics.

properties:
  reg:
    maxItems: 1

  compatible:
    enum:
      - qcom,qcm2290-bimc
      - qcom,qcm2290-cnoc
      - qcom,qcm2290-snoc

  '#interconnect-cells':
    const: 1

  clock-names:
    items:
      - const: bus
      - const: bus_a

  clocks:
    items:
      - description: Bus Clock
      - description: Bus A Clock

# Child node's properties
patternProperties:
  '^interconnect-[a-z0-9]+$':
    type: object
    description:
      The interconnect providers do not have a separate QoS register space,
      but share parent's space.

    properties:
      compatible:
        enum:
          - qcom,qcm2290-qup-virt
          - qcom,qcm2290-mmrt-virt
          - qcom,qcm2290-mmnrt-virt

      '#interconnect-cells':
        const: 1

      clock-names:
        items:
          - const: bus
          - const: bus_a

      clocks:
        items:
          - description: Bus Clock
          - description: Bus A Clock

    required:
      - compatible
      - '#interconnect-cells'
      - clock-names
      - clocks

    additionalProperties: false

required:
  - compatible
  - reg
  - '#interconnect-cells'
  - clock-names
  - clocks

additionalProperties: false

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

    snoc: interconnect@1880000 {
        compatible = "qcom,qcm2290-snoc";
        reg = <0x01880000 0x60200>;
        #interconnect-cells = <1>;
        clock-names = "bus", "bus_a";
        clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
                 <&rpmcc RPM_SMD_SNOC_A_CLK>;

        qup_virt: interconnect-qup {
            compatible = "qcom,qcm2290-qup-virt";
            #interconnect-cells = <1>;
            clock-names = "bus", "bus_a";
            clocks = <&rpmcc RPM_SMD_QUP_CLK>,
                     <&rpmcc RPM_SMD_QUP_A_CLK>;
        };

        mmnrt_virt: interconnect-mmnrt {
            compatible = "qcom,qcm2290-mmnrt-virt";
            #interconnect-cells = <1>;
            clock-names = "bus", "bus_a";
            clocks = <&rpmcc RPM_SMD_MMNRT_CLK>,
                     <&rpmcc RPM_SMD_MMNRT_A_CLK>;
        };

        mmrt_virt: interconnect-mmrt {
            compatible = "qcom,qcm2290-mmrt-virt";
            #interconnect-cells = <1>;
            clock-names = "bus", "bus_a";
            clocks = <&rpmcc RPM_SMD_MMRT_CLK>,
                     <&rpmcc RPM_SMD_MMRT_A_CLK>;
        };
    };

    cnoc: interconnect@1900000 {
        compatible = "qcom,qcm2290-cnoc";
        reg = <0x01900000 0x8200>;
        #interconnect-cells = <1>;
        clock-names = "bus", "bus_a";
        clocks = <&rpmcc RPM_SMD_CNOC_CLK>,
                 <&rpmcc RPM_SMD_CNOC_A_CLK>;
    };

    bimc: interconnect@4480000 {
        compatible = "qcom,qcm2290-bimc";
        reg = <0x04480000 0x80000>;
        #interconnect-cells = <1>;
        clock-names = "bus", "bus_a";
        clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
                 <&rpmcc RPM_SMD_BIMC_A_CLK>;
    };