xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml (revision 62306a36)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interconnect/qcom,osm-l3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Operating State Manager (OSM) L3 Interconnect Provider

maintainers:
  - Sibi Sankar <quic_sibis@quicinc.com>

description:
  L3 cache bandwidth requirements on Qualcomm SoCs is serviced by the OSM.
  The OSM L3 interconnect provider aggregates the L3 bandwidth requests
  from CPU/GPU and relays it to the OSM.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - qcom,sc7180-osm-l3
              - qcom,sc8180x-osm-l3
              - qcom,sdm670-osm-l3
              - qcom,sdm845-osm-l3
              - qcom,sm6350-osm-l3
              - qcom,sm8150-osm-l3
          - const: qcom,osm-l3
      - items:
          - enum:
              - qcom,sc7280-epss-l3
              - qcom,sc8280xp-epss-l3
              - qcom,sm6375-cpucp-l3
              - qcom,sm8250-epss-l3
              - qcom,sm8350-epss-l3
          - const: qcom,epss-l3

  reg:
    maxItems: 1

  clocks:
    items:
      - description: xo clock
      - description: alternate clock

  clock-names:
    items:
      - const: xo
      - const: alternate

  '#interconnect-cells':
    const: 1

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

additionalProperties: false

examples:
  - |

    #define GPLL0               165
    #define RPMH_CXO_CLK        0

    osm_l3: interconnect@17d41000 {
      compatible = "qcom,sdm845-osm-l3", "qcom,osm-l3";
      reg = <0x17d41000 0x1400>;

      clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>;
      clock-names = "xo", "alternate";

      #interconnect-cells = <1>;
    };