linux-kernel - Re: [PATCH 1/2] dt-bindings: PCI: qcom: Add SC8280XP/SA8540P interconnects

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Date:   Wed, 19 Oct 2022 10:37:31 -0400
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Krishna chaitanya chundru <quic_krichai@...cinc.com>,
        quic_vbadigan@...cinc.com, linux-arm-msm@...r.kernel.org,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: PCI: qcom: Add SC8280XP/SA8540P
 interconnects

On 17/10/2022 07:24, Johan Hovold wrote:
> Add the missing SC8280XP/SA8540P "pcie-mem" and "cpu-pcie" interconnect
> paths to the bindings.
> 
> Fixes: 76d777ae045e ("dt-bindings: PCI: qcom: Add SC8280XP to binding")
> Fixes: 76c4207f4085 ("dt-bindings: PCI: qcom: Add SA8540P to binding")
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 22a2aac4c23f..a55434f95edd 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -62,6 +62,12 @@ properties:
>      minItems: 3
>      maxItems: 12
>  
> +  interconnects:
> +    maxItems: 2
> +
> +  interconnect-names:
> +    maxItems: 2
> +
>    resets:
>      minItems: 1
>      maxItems: 12
> @@ -629,6 +635,25 @@ allOf:
>            items:
>              - const: pci # PCIe core reset
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-sa8540p
> +              - qcom,pcie-sc8280xp
> +    then:
> +      properties:
> +        interconnects:
> +          maxItems: 2

No need for this.

> +        interconnect-names:
> +          items:
> +            - const: pcie-mem
> +            - const: cpu-pcie
> +      required:
> +        - interconnects
> +        - interconnect-names

else:
  ??

Otherwise, you allow any names for other variants.

Best regards,
Krzysztof