On Tue, Aug 16, 2022 at 07:25:44PM +0100, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>
> Recent versions of dt-schema warn about unevaluatedProperties:
> arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dtb: pcie@2000000000: Unevaluated properties are not allowed ('clock-names', 'clocks', 'legacy-interrupt-controller', 'microchip,axi-m-atr0' were unexpected)
> From schema: Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
>
> The clocks are required to enable interfaces between the FPGA fabric
> and the core complex, so add them to the binding.
>
> Fixes: 6ee6c89aac35 ("dt-bindings: PCI: microchip: Add Microchip PolarFire host binding")
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
> ---
> dt-schema v2022.08 is required to replicate
> ---
> .../bindings/pci/microchip,pcie-host.yaml | 25 +++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
> index edb4f81253c8..6bbde8693ef8 100644
> --- a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
> +++ b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
> @@ -25,6 +25,31 @@ properties:
> - const: cfg
> - const: apb
>
> + clocks:
> + description:
> + Fabric Interface Controllers, FICs, are the interface between the FPGA
> + fabric and the core complex on PolarFire SoC. The FICs require two clocks,
> + one from each side of the interface. The "FIC clocks" described by this
> + property are on the core complex side & communication through a FIC is not
> + possible unless it's corresponding clock is enabled. A clock must be
> + enabled for each of the interfaces the root port is connected through.
> + This could in theory be all 4 interfaces, one interface or any combination
> + in between.
> + minItems: 1
> + items:
> + - description: FIC0's clock
> + - description: FIC1's clock
> + - description: FIC2's clock
> + - description: FIC3's clock
> +
> + clock-names:
> + description:
> + As any FIC connection combination is possible, the names should match the
> + order in the clocks property and take the form "ficN" where N is a number
> + 0-3
> + minItems: 1
> + maxItems: 4
items:
pattern: '^fic[0-3]$'
> +
> interrupts:
> minItems: 1
> items:
> --
> 2.37.1
>
>
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