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Date: Wed, 3 Apr 2024 09:14:11 +0200
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Subject: Re: [PATCH 3/7] dt-bindings: PCI: qcom: Add IPQ9574 PCIe controller
To: Alexandru Gagniuc <mr.nuke.me@gmail.com>,
 Bjorn Andersson <andersson@kernel.org>,
 Konrad Dybcio <konrad.dybcio@linaro.org>, Bjorn Helgaas
 <bhelgaas@google.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>,
 =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= <kw@linux.com>,
 Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: ansuelsmth@gmail.com, robimarko@gmail.com, linux-arm-msm@vger.kernel.org,
 linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org
References: <20240402192555.1955204-1-mr.nuke.me@gmail.com>
 <20240402192555.1955204-3-mr.nuke.me@gmail.com>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <20240402192555.1955204-3-mr.nuke.me@gmail.com>
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On 02/04/2024 21:25, Alexandru Gagniuc wrote:
> IPQ9574 has PCIe controllers which are almost identical to IPQ6018.
> The only difference is that the "iface" clock is not required.
> Document this difference along with the compatible string.
> 
> Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
> ---
>  .../devicetree/bindings/pci/qcom,pcie.yaml    | 32 +++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index cf9a6910b542..6eb29547c18e 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-sdm845
> @@ -383,6 +384,35 @@ allOf:
>              - const: axi_s # AXI Slave clock
>              - const: axi_bridge # AXI bridge clock
>              - const: rchng
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-ipq9574
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 4
> +          maxItems: 4
> +        clock-names:
> +          items:
> +            - const: axi_m # AXI Master clock
> +            - const: axi_s # AXI Slave clock
> +            - const: axi_bridge # AXI bridge clock
> +            - const: rchng
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,pcie-ipq6018
> +              - qcom,pcie-ipq8074-gen3
> +              - qcom,pcie-ipq9574
> +    then:

Do not introduce inconsistent style. All if:then: define both clocks and
resets, right? And after your patch not anymore?

Best regards,
Krzysztof