linux-kernel - Re: [PATCH 1/7] dt-bindings: PCI: qcom: Add IPQ9574 specific compatible

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Message-ID: <f883e857-1281-ceae-74ac-72a1f07d6413@linaro.org>
Date:   Thu, 16 Feb 2023 11:29:24 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Devi Priya <quic_devipriy@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org,
        lpieralisi@...nel.org, kw@...ux.com, robh@...nel.org,
        bhelgaas@...gle.com, krzysztof.kozlowski+dt@...aro.org,
        vkoul@...nel.org, kishon@...nel.org, mturquette@...libre.com,
        sboyd@...nel.org, mani@...nel.org, p.zabel@...gutronix.de,
        svarbanov@...sol.com, linux-arm-msm@...r.kernel.org,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-clk@...r.kernel.org
Cc:     quic_srichara@...cinc.com, quic_gokulsri@...cinc.com,
        quic_sjaganat@...cinc.com, quic_kathirav@...cinc.com,
        quic_arajkuma@...cinc.com, quic_anusha@...cinc.com
Subject: Re: [PATCH 1/7] dt-bindings: PCI: qcom: Add IPQ9574 specific
 compatible

On 14/02/2023 17:41, Devi Priya wrote:
> Document the compatible for IPQ9574
> 
> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
> ---
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 72 ++++++++++++++++++-
>  1 file changed, 70 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 872817d6d2bd..dabdf2684e2d 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -26,6 +26,7 @@ properties:
>            - qcom,pcie-ipq8064-v2
>            - qcom,pcie-ipq8074
>            - qcom,pcie-ipq8074-gen3
> +          - qcom,pcie-ipq9574
>            - qcom,pcie-msm8996
>            - qcom,pcie-qcs404
>            - qcom,pcie-sa8540p
> @@ -44,11 +45,11 @@ properties:
>  
>    reg:
>      minItems: 4
> -    maxItems: 5
> +    maxItems: 6
>  
>    reg-names:
>      minItems: 4
> -    maxItems: 5
> +    maxItems: 6
>  
>    interrupts:
>      minItems: 1
> @@ -105,6 +106,8 @@ properties:
>      items:
>        - const: pciephy
>  
> +  msi-parent: true
> +
>    power-domains:
>      maxItems: 1
>  
> @@ -173,6 +176,27 @@ allOf:
>              - const: parf # Qualcomm specific registers
>              - const: config # PCIe configuration space
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-ipq9574
> +    then:
> +      properties:
> +        reg:
> +          minItems: 5
> +          maxItems: 6
> +        reg-names:
> +          minItems: 5
> +          items:
> +            - const: dbi # DesignWare PCIe registers
> +            - const: elbi # External local bus interface registers
> +            - const: atu # ATU address space
> +            - const: parf # Qualcomm specific registers
> +            - const: config # PCIe configuration space
> +            - const: aggr_noc #PCIe aggr_noc

Why last one is optional? I would assume device either has it or has not.


Best regards,
Krzysztof