linux-kernel - Re: [PATCH V3 3/6] dt-bindings: PCI: qcom: Add IPQ9574

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Message-ID: <20230425173330.GA1985131-robh@kernel.org>
Date:   Tue, 25 Apr 2023 12:33:30 -0500
From:   Rob Herring <robh@...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, bhelgaas@...gle.com,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, mani@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...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 V3 3/6] dt-bindings: PCI: qcom: Add IPQ9574

On Fri, Apr 21, 2023 at 06:19:35PM +0530, Devi Priya wrote:
> Add bindings for PCIe hosts on IPQ9574 platform and allow
> msi-parent property.

Go see the long discussion about why msi-parent with msi-map is wrong. 
If something changed, explain that here.

> 
> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
> ---
>  Changes in V3:
> 	- Rebased on linux-next/master
> 
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 40 +++++++++++++++++++
>  1 file changed, 40 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 81971be4e554..a92cecc5fe6f 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
> @@ -138,6 +141,8 @@ anyOf:
>    - required:
>        - msi-map
>        - msi-map-mask
> +  - required:
> +      - msi-parent
>  
>  allOf:
>    - $ref: /schemas/pci/pci-bus.yaml#
> @@ -171,6 +176,7 @@ allOf:
>              enum:
>                - qcom,pcie-ipq6018
>                - qcom,pcie-ipq8074-gen3
> +              - qcom,pcie-ipq9574
>      then:
>        properties:
>          reg:
> @@ -382,6 +388,39 @@ 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 +806,7 @@ allOf:
>                  - qcom,pcie-ipq8064v2
>                  - qcom,pcie-ipq8074
>                  - qcom,pcie-ipq8074-gen3
> +                - qcom,pcie-ipq9574
>                  - qcom,pcie-qcs404
>      then:
>        required:
> -- 
> 2.17.1
>