Commit 8b8161ed authored by Marek Vasut's avatar Marek Vasut Committed by Rob Herring
Browse files

dt-bindings: imx6q-pcie: Handle various PD configurations 



The i.MX SoCs have various power domain configurations routed into
the PCIe IP. MX6SX is the only one which contains 2 domains and also
uses power-domain-names. MX6QDL do not use any domains. All the rest
uses one domain and does not use power-domain-names anymore.

Document all those configurations in the DT binding document.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20221211024859.672076-2-marex@denx.de


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 22c9f190

Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml

+32 −0
Original line number Diff line number Diff line
@@ -69,6 +69,7 @@ properties: 
      required properties for imx7d-pcie and imx8mq-pcie.



  power-domains:

    minItems: 1

    items:

      - description: The phandle pointing to the DISPLAY domain for

          imx6sx-pcie, to PCIE_PHY power domain for imx7d-pcie and
@@ -77,6 +78,7 @@ properties: 
          for imx6sx-pcie.



  power-domain-names:

    minItems: 1

    items:

      - const: pcie

      - const: pcie_phy
@@ -187,6 +189,10 @@ allOf: 
            - {}

            - const: pcie_phy

            - const: pcie_inbound_axi

        power-domains:

          minItems: 2

        power-domain-names:

          minItems: 2

  - if:

      properties:

        compatible:
@@ -243,6 +249,32 @@ allOf: 
          maxItems: 3

          contains:

            const: pcie_aux

  - if:

      properties:

        compatible:

          contains:

            enum:

              - fsl,imx6q-pcie

              - fsl,imx6qp-pcie

    then:

      properties:

        power-domains: false

        power-domain-names: false



  - if:

      not:

        properties:

          compatible:

            contains:

              enum:

                - fsl,imx6sx-pcie

                - fsl,imx6q-pcie

                - fsl,imx6qp-pcie

    then:

      properties:

        power-domains:

          maxItems: 1

        power-domain-names: false



unevaluatedProperties: false