Unverified Commit cb08c3a3 authored by Siddharth Vadapalli's avatar Siddharth Vadapalli Committed by Krzysztof Wilczyński
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dt-bindings: PCI: ti,j721e-pci-host: Add ACSPCIE proxy control property 

Add the "ti,syscon-acspcie-proxy-ctrl" device-tree property which is
used to obtain a reference to the ACSPCIE Proxy Control register along
with the details of the PAD IO Buffer output enable bits.

The ACSPCIE Proxy Control register is used to drive the reference clock
for the PCIe Endpoint device via the PAD IO Buffers of the ACSPCIE module.
The ACSPCIE module can be used as an alternative to either an on-board
clock generator or an external clock generator for providing the reference
clock to the PCIe Endpoint device.

Link: https://lore.kernel.org/linux-pci/20240829105316.1483684-2-s-vadapalli@ti.com


Signed-off-by: default avatarSiddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: default avatarKrzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
parent 8400291e

Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml

+10 −0
Original line number Diff line number Diff line
@@ -38,6 +38,16 @@ properties: 
      - const: reg

      - const: cfg



  ti,syscon-acspcie-proxy-ctrl:

    $ref: /schemas/types.yaml#/definitions/phandle-array

    items:

      - items:

          - description: Phandle to the ACSPCIE Proxy Control Register

          - description: Bitmask corresponding to the PAD IO Buffer

                         output enable fields (Active Low).

    description: Specifier for enabling the ACSPCIE PAD outputs to drive

                 the reference clock to the Endpoint device.



  ti,syscon-pcie-ctrl:

    $ref: /schemas/types.yaml#/definitions/phandle-array

    items: