Commit 2ed9ae81 authored by Herve Codina's avatar Herve Codina Committed by Bjorn Helgaas
Browse files

dt-bindings: PCI: renesas,pci-rcar-gen2: Add device tree support for R9A06G032 

Add internal PCI bridge support for the R9A06G032 SOC. The Renesas RZ/N1D
(R9A06G032) internal PCI bridge is compatible with the one present in the
R-Car Gen2 family, but compared to R-Car Gen2, it needs three clocks
instead of one.

The 'resets' property is not required for the RZ/N1 family.

Link: https://lore.kernel.org/r/20220520094155.313784-3-herve.codina@bootlin.com


Signed-off-by: default avatarHerve Codina <herve.codina@bootlin.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
parent 409ae431

Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml

+40 −10
Original line number Diff line number Diff line
@@ -15,9 +15,6 @@ description: | 
  AHB. There is one bridge instance per USB port connected to the internal

  OHCI and EHCI controllers.



allOf:

  - $ref: /schemas/pci/pci-bus.yaml#



properties:

  compatible:

    oneOf:
@@ -32,6 +29,10 @@ properties: 
              - renesas,pci-r8a7793      # R-Car M2-N

              - renesas,pci-r8a7794      # R-Car E2

          - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1

      - items:

          - enum:

              - renesas,pci-r9a06g032     # RZ/N1D

          - const: renesas,pci-rzn1       # RZ/N1



  reg:

    items:
@@ -41,13 +42,9 @@ properties: 
  interrupts:

    maxItems: 1



  clocks:

    items:

      - description: Device clock

  clocks: true



  clock-names:

    items:

      - const: pclk

  clock-names: true



  resets:

    maxItems: 1
@@ -106,13 +103,46 @@ required: 
  - interrupt-map

  - interrupt-map-mask

  - clocks

  - resets

  - power-domains

  - bus-range

  - "#address-cells"

  - "#size-cells"

  - "#interrupt-cells"



allOf:

  - $ref: /schemas/pci/pci-bus.yaml#



  - if:

      properties:

        compatible:

          contains:

            enum:

              - renesas,pci-rzn1

    then:

      properties:

        clocks:

          items:

            - description: Internal bus clock (AHB) for HOST

            - description: Internal bus clock (AHB) Power Management

            - description: PCI clock for USB subsystem

        clock-names:

          items:

            - const: hclkh

            - const: hclkpm

            - const: pciclk

      required:

        - clock-names

    else:

      properties:

        clocks:

          items:

            - description: Device clock

        clock-names:

          items:

            - const: pclk

      required:

        - resets



unevaluatedProperties: false



examples: