linux-kernel - Re: [PATCH V4 3/6] dt-bindings: PCI: qcom: Add IPQ9574

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Message-ID: <20230528141713.GB2814@thinkpad>
Date:   Sun, 28 May 2023 19:47:13 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Devi Priya <quic_devipriy@...cinc.com>
Cc:     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,
        conor+dt@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, quic_srichara@...cinc.com,
        quic_sjaganat@...cinc.com, quic_kathirav@...cinc.com,
        quic_arajkuma@...cinc.com, quic_anusha@...cinc.com,
        quic_ipkumar@...cinc.com
Subject: Re: [PATCH V4 3/6] dt-bindings: PCI: qcom: Add IPQ9574

On Fri, May 19, 2023 at 02:32:16PM +0530, Devi Priya wrote:
> Add bindings for PCIe hosts on IPQ9574 platform and allow
> msi-parent property.
> 

Why can't you use existing "msi-map" property instead of "msi-parent"?

- Mani

> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
> ---
>  Changes in V4:
> 	- Dropped msi-parent from anyOf: as msi-parent and msi-map
> 	  cannot coexist and added it specific to ipq9574
> 
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 81971be4e554..af5c7a390df1 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
> @@ -113,6 +114,8 @@ properties:
>    power-domains:
>      maxItems: 1
>  
> +  msi-parent: true
> +
>    perst-gpios:
>      description: GPIO controlled connection to PERST# signal
>      maxItems: 1
> @@ -171,6 +174,7 @@ allOf:
>              enum:
>                - qcom,pcie-ipq6018
>                - qcom,pcie-ipq8074-gen3
> +              - qcom,pcie-ipq9574
>      then:
>        properties:
>          reg:
> @@ -382,6 +386,39 @@ allOf:
>              - const: ahb # AHB Reset
>              - const: axi_m_sticky # AXI Master Sticky reset
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-ipq9574
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 6
> +          maxItems: 6
> +        clock-names:
> +          items:
> +            - const: ahb  # AHB clock
> +            - const: aux  # Auxiliary clock
> +            - const: axi_m # AXI Master clock
> +            - const: axi_s # AXI Slave clock
> +            - const: axi_bridge # AXI bridge clock
> +            - const: rchng
> +        resets:
> +          minItems: 8
> +          maxItems: 8
> +        reset-names:
> +          items:
> +            - const: pipe # PIPE reset
> +            - const: sticky # Core Sticky reset
> +            - const: axi_s_sticky # AXI Slave Sticky reset
> +            - const: axi_s # AXI Slave reset
> +            - const: axi_m_sticky # AXI Master Sticky reset
> +            - const: axi_m # AXI Master reset
> +            - const: aux # AUX Reset
> +            - const: ahb # AHB Reset
> +
>    - if:
>        properties:
>          compatible:
> @@ -767,6 +804,7 @@ allOf:
>                  - qcom,pcie-ipq8064v2
>                  - qcom,pcie-ipq8074
>                  - qcom,pcie-ipq8074-gen3
> +                - qcom,pcie-ipq9574
>                  - qcom,pcie-qcs404
>      then:
>        required:
> @@ -862,6 +900,16 @@ allOf:
>            items:
>              - const: msi
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-ipq9574
> +    then:
> +      required:
> +        - msi-parent
> +
>  unevaluatedProperties: false
>  
>  examples:
> -- 
> 2.17.1
> 

-- 
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