linux-kernel - Re: [PATCH v4 1/2] dt-bindings: PCI: xilinx-cpm: Add Versal CPM5 Root Port

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Date:   Thu, 9 Jun 2022 15:10:35 -0600
From:   Rob Herring <robh@...nel.org>
To:     Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, lorenzo.pieralisi@....com,
        bhelgaas@...gle.com, michals@...inx.com
Subject: Re: [PATCH v4 1/2] dt-bindings: PCI: xilinx-cpm: Add Versal CPM5
 Root Port

On Wed, Jun 08, 2022 at 10:10:45PM +0530, Bharat Kumar Gogada wrote:
> Xilinx Versal Premium series has CPM5 block which supports Root Port
> functionality at Gen5 speed.
> 
> Add support for YAML schemas documentation for Versal CPM5 Root Port driver.
> 
> Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
> ---
>  .../bindings/pci/xilinx-versal-cpm.yaml       | 48 +++++++++++++++++--
>  1 file changed, 44 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> index cca395317a4c..80597f2974e5 100644
> --- a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> +++ b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> @@ -14,17 +14,27 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: xlnx,versal-cpm-host-1.00
> +    contains:

Drop 'contains'.

> +      enum:
> +        - xlnx,versal-cpm-host-1.00
> +        - xlnx,versal-cpm5-host
>  
>    reg:
>      items:
>        - description: CPM system level control and status registers.
>        - description: Configuration space region and bridge registers.
> +      - description: CPM5 control and status registers.
> +    minItems: 2
>  
>    reg-names:
> -    items:
> -      - const: cpm_slcr
> -      - const: cfg
> +    oneOf:

You don't need oneOf.

> +      - items:
> +          - const: cpm_slcr
> +          - const: cfg

> +      - items:
> +          - const: cpm_slcr
> +          - const: cfg
> +          - const: cpm_csr

Just add 'minItems: 2'

>  
>    interrupts:
>      maxItems: 1
> @@ -95,4 +105,34 @@ examples:
>                                 interrupt-controller;
>                         };
>                 };
> +
> +               cpm5_pcie: pcie@...d0000 {
> +                       compatible = "xlnx,versal-cpm5-host";
> +                       device_type = "pci";
> +                       #address-cells = <3>;
> +                       #interrupt-cells = <1>;
> +                       #size-cells = <2>;
> +                       interrupts = <0 72 4>;
> +                       interrupt-parent = <&gic>;
> +                       interrupt-map-mask = <0 0 0 7>;
> +                       interrupt-map = <0 0 0 1 &pcie_intc_1 0>,
> +                                       <0 0 0 2 &pcie_intc_1 1>,
> +                                       <0 0 0 3 &pcie_intc_1 2>,
> +                                       <0 0 0 4 &pcie_intc_1 3>;
> +                       bus-range = <0x00 0xff>;
> +                       ranges = <0x02000000 0x0 0xe0000000 0x0 0xe0000000 0x0 0x10000000>,
> +                                <0x43000000 0x80 0x00000000 0x80 0x00000000 0x0 0x80000000>;
> +                       msi-map = <0x0 &its_gic 0x0 0x10000>;
> +                       reg = <0x00 0xfcdd0000 0x00 0x1000>,
> +                             <0x06 0x00000000 0x00 0x1000000>,
> +                             <0x00 0xfce20000 0x00 0x1000000>;
> +                       reg-names = "cpm_slcr", "cfg", "cpm_csr";
> +
> +                       pcie_intc_1: interrupt-controller {
> +                               #address-cells = <0>;
> +                               #interrupt-cells = <1>;
> +                               interrupt-controller;
> +                       };
> +               };
> +
>      };
> -- 
> 2.17.1
> 
>