Commit 215113ab authored by Kever Yang's avatar Kever Yang Committed by Manivannan Sadhasivam
Browse files

dt-bindings: PCI: dw: rockchip: Add rk3576 support 



rk3576 is using DWC PCIe controller, with msi interrupt directly to GIC
instead of using GIC ITS, so
- no ITS support is required and the 'msi-map' is not required,
- a new 'msi' interrupt is needed.

Co-developed-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: default avatarKever Yang <kever.yang@rock-chips.com>
[mani: changed 'its' to 'ITS' in the binding, spelling mistake fix]
Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Reviewed-by: default avatarHeiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20250414145110.11275-2-kever.yang@rock-chips.com
parent cc9f71da

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

+8 −2
Original line number Diff line number Diff line
@@ -65,7 +65,11 @@ properties: 
          tx_cpl_timeout, cor_err_sent, nf_err_sent, f_err_sent, cor_err_rx,

          nf_err_rx, f_err_rx, radm_qoverflow

      - description:

          eDMA write channel 0 interrupt

          If the matching interrupt name is "msi", then this is the combined

          MSI line interrupt, which is to support MSI interrupts output to GIC

          controller via GIC SPI interrupt instead of GIC ITS interrupt.

          If the matching interrupt name is "dma0", then this is the eDMA write

          channel 0 interrupt.

      - description:

          eDMA write channel 1 interrupt

      - description:
@@ -81,7 +85,9 @@ properties: 
      - const: msg

      - const: legacy

      - const: err

      - const: dma0

      - enum:

          - msi

          - dma0

      - const: dma1

      - const: dma2

      - const: dma3

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

+49 −6
Original line number Diff line number Diff line
@@ -16,16 +16,13 @@ description: |+ 
  PCIe IP and thus inherits all the common properties defined in

  snps,dw-pcie.yaml.



allOf:

  - $ref: /schemas/pci/snps,dw-pcie.yaml#

  - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml#



properties:

  compatible:

    oneOf:

      - const: rockchip,rk3568-pcie

      - items:

          - enum:

              - rockchip,rk3576-pcie

              - rockchip,rk3588-pcie

          - const: rockchip,rk3568-pcie
@@ -71,9 +68,55 @@ properties: 


  vpcie3v3-supply: true



allOf:

  - $ref: /schemas/pci/snps,dw-pcie.yaml#

  - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml#

  - if:

      not:

        properties:

          compatible:

            contains:

              const: rockchip,rk3576-pcie

    then:

      required:

        - msi-map



  - if:

      properties:

        compatible:

          contains:

            const: rockchip,rk3576-pcie

    then:

      properties:

        interrupts:

          minItems: 6

          maxItems: 6

        interrupt-names:

          items:

            - const: sys

            - const: pmc

            - const: msg

            - const: legacy

            - const: err

            - const: msi

    else:

      properties:

        interrupts:

          minItems: 5

        interrupt-names:

          minItems: 5

          items:

            - const: sys

            - const: pmc

            - const: msg

            - const: legacy

            - const: err

            - const: dma0

            - const: dma1

            - const: dma2

            - const: dma3





unevaluatedProperties: false



examples: