Documentation/devicetree/bindings/interconnect/qcom,sdx75-rpmh.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/interconnect/qcom,sdx75-rpmh.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm RPMh Network-On-Chip Interconnect on SDX75
   8
   9 maintainers:
  10   - Rohit Agarwal <quic_rohiagar@quicinc.com>
  11
  12 description:
  13   RPMh interconnect providers support system bandwidth requirements through
  14   RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
  15   able to communicate with the BCM through the Resource State Coordinator (RSC)
  16   associated with each execution environment. Provider nodes must point to at
  17   least one RPMh device child node pertaining to their RSC and each provider
  18   can map to multiple RPMh resources.
  19
  20 properties:
  21   compatible:
  22     enum:
  23       - qcom,sdx75-clk-virt
  24       - qcom,sdx75-dc-noc
  25       - qcom,sdx75-gem-noc
  26       - qcom,sdx75-mc-virt
  27       - qcom,sdx75-pcie-anoc
  28       - qcom,sdx75-system-noc
  29
  30   '#interconnect-cells': true
  31
  32   reg:
  33     maxItems: 1
  34
  35   clocks:
  36     maxItems: 1
  37
  38 required:
  39   - compatible
  40
  41 allOf:
  42   - $ref: qcom,rpmh-common.yaml#
  43   - if:
  44       properties:
  45         compatible:
  46           contains:
  47             enum:
  48               - qcom,sdx75-clk-virt
  49               - qcom,sdx75-mc-virt
  50     then:
  51       properties:
  52         reg: false
  53     else:
  54       required:
  55         - reg
  56
  57   - if:
  58       properties:
  59         compatible:
  60           contains:
  61             enum:
  62               - qcom,sdx75-clk-virt
  63     then:
  64       properties:
  65         clocks:
  66           items:
  67             - description: RPMH CC QPIC Clock
  68       required:
  69         - clocks
  70     else:
  71       properties:
  72         clocks: false
  73
  74 unevaluatedProperties: false
  75
  76 examples:
  77   - |
  78     #include <dt-bindings/clock/qcom,rpmh.h>
  79
  80     clk_virt: interconnect-0 {
  81             compatible = "qcom,sdx75-clk-virt";
  82             #interconnect-cells = <2>;
  83             qcom,bcm-voters = <&apps_bcm_voter>;
  84             clocks = <&rpmhcc RPMH_QPIC_CLK>;
  85     };
  86
  87     system_noc: interconnect@1640000 {
  88             compatible = "qcom,sdx75-system-noc";
  89             reg = <0x1640000 0x4b400>;
  90             #interconnect-cells = <2>;
  91             qcom,bcm-voters = <&apps_bcm_voter>;
  92     };