Commit 7cd8f2ab authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Rob Herring
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dt-bindings: PCI: dwc: rockchip: Add missing legacy-interrupt-controller 



Rockchip RK356x and RK3588 handle legacy interrupts via a ganged
interrupts. The RK356x DT implements this via a sub-node named
"legacy-interrupt-controller", just like a couple of other PCIe
implementations. This adds proper documentation for this and updates
the example to avoid regressions.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230731165723.53069-5-sebastian.reichel@collabora.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 591d3833

Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml

+30 −0
Original line number Diff line number Diff line
@@ -93,6 +93,28 @@ properties: 
      - const: legacy

      - const: err



  legacy-interrupt-controller:

    description: Interrupt controller node for handling legacy PCI interrupts.

    type: object

    additionalProperties: false

    properties:

      "#address-cells":

        const: 0



      "#interrupt-cells":

        const: 1



      interrupt-controller: true



      interrupts:

        items:

          - description: combined legacy interrupt

    required:

      - "#address-cells"

      - "#interrupt-cells"

      - interrupt-controller

      - interrupts



  msi-map: true



  num-lanes: true
@@ -180,6 +202,14 @@ examples: 
            reset-names = "pipe";

            #address-cells = <3>;

            #size-cells = <2>;



            legacy-interrupt-controller {

                interrupt-controller;

                #address-cells = <0>;

                #interrupt-cells = <1>;

                interrupt-parent = <&gic>;

                interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;

            };

        };

    };

...