Commit 91a773f9 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Bjorn Helgaas
Browse files

dt-bindings: PCI: qcom: Support additional MSI vectors 

On Qualcomm platforms each group of 32 MSI vectors is routed to the
separate GIC interrupt. Document mapping of additional interrupts.

Link: https://lore.kernel.org/r/20220707134733.2436629-6-dmitry.baryshkov@linaro.org


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarJohan Hovold <johan+linaro@kernel.org>
Acked-by: default avatarStanimir Varbanov <svarbanov@mm-sol.com>
parent cd761378

Documentation/devicetree/bindings/pci/qcom,pcie.yaml

+48 −3
Original line number Diff line number Diff line
@@ -43,11 +43,12 @@ properties: 
    maxItems: 5



  interrupts:

    maxItems: 1

    minItems: 1

    maxItems: 8



  interrupt-names:

    items:

      - const: msi

    minItems: 1

    maxItems: 8



  # Common definitions for clocks, clock-names and reset.

  # Platform constraints are described later.
@@ -623,6 +624,50 @@ allOf: 
        - resets

        - reset-names



    # Newer chipsets support either 1 or 8 MSI vectors

    # On older chipsets it's always 1 MSI vector

  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,pcie-msm8996

              - qcom,pcie-sc7280

              - qcom,pcie-sc8180x

              - qcom,pcie-sdm845

              - qcom,pcie-sm8150

              - qcom,pcie-sm8250

              - qcom,pcie-sm8450-pcie0

              - qcom,pcie-sm8450-pcie1

    then:

      oneOf:

        - properties:

            interrupts:

              maxItems: 1

            interrupt-names:

              items:

                - const: msi

        - properties:

            interrupts:

              minItems: 8

            interrupt-names:

              items:

                - const: msi0

                - const: msi1

                - const: msi2

                - const: msi3

                - const: msi4

                - const: msi5

                - const: msi6

                - const: msi7

    else:

      properties:

        interrupts:

          maxItems: 1

        interrupt-names:

          items:

            - const: msi



unevaluatedProperties: false



examples: