linux-kernel - Re: [PATCH v12 1/4] dt-bindings: PCI: qcom: Add MHI registers for IPQ9574

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Message-ID: <7b2d7f14-4274-4ff0-87a6-ac3dd649df4e@kernel.org>
Date: Wed, 12 Mar 2025 09:46:41 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Varadarajan Narayanan <quic_varada@...cinc.com>, bhelgaas@...gle.com,
 lpieralisi@...nel.org, kw@...ux.com, manivannan.sadhasivam@...aro.org,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 andersson@...nel.org, konradybcio@...nel.org, quic_srichara@...cinc.com,
 quic_devipriy@...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 v12 1/4] dt-bindings: PCI: qcom: Add MHI registers for
 IPQ9574

On 12/03/2025 09:43, Varadarajan Narayanan wrote:
> Append the MHI register range to IPQ9574.

Why?

> 
> Fixes: e0662dae178d ("dt-bindings: PCI: qcom: Document the IPQ9574 PCIe controller")

What is being fixed here?

> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
> New patch introduced in this patchset. MHI range was missed in the
> initial post
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 8f628939209e..77e66ab8764f 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -175,7 +175,7 @@ allOf:
>        properties:
>          reg:
>            minItems: 5
> -          maxItems: 5
> +          maxItems: 6

Why qcom,pcie-ipq6018 gets mhi? Nothing in commit msg mentions ipq6018.

>          reg-names:
>            items:
>              - const: dbi # DesignWare PCIe registers
> @@ -183,6 +183,7 @@ allOf:
>              - const: atu # ATU address space
>              - const: parf # Qualcomm specific registers
>              - const: config # PCIe configuration space
> +            - const: mhi # MHI registers

Never tested - you introduce new warnings. AGAIN.

Properties xxx and xxx-names must have always the same constraints.


Best regards,
Krzysztof