linux-kernel - Re: [PATCH v3 4/8] dt-bindings: PCI: qcom-ep: consolidate DMA vs non-DMA usecases

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Message-ID: <20250222-sexy-jasmine-lorikeet-3fe8db@krzk-bin>
Date: Sat, 22 Feb 2025 11:40:22 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
	Lorenzo Pieralisi <lpieralisi@...nel.org>, Krzysztof Wilczyński <kw@...ux.com>, 
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Mrinmay Sarkar <quic_msarkar@...cinc.com>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Krzysztof Wilczyński <kwilczynski@...nel.org>, 
	linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/8] dt-bindings: PCI: qcom-ep: consolidate DMA vs
 non-DMA usecases

On Fri, Feb 21, 2025 at 05:52:02PM +0200, Dmitry Baryshkov wrote:
> On Qualcomm platforms here are two major kinds of PCIe EP controllers:
> ones which use eDMA and IOMMU and the ones which do not (like SDX55 /
> SDX65). It doesn't make sense to c&p similar properties all over the
> place. Merge these two usecases into a single conditional clause.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  .../devicetree/bindings/pci/qcom,pcie-ep.yaml      | 68 +++++++++++-----------
>  1 file changed, 35 insertions(+), 33 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> index d22022ff2760c5aa84d31e3c719dd4b63adbb4cf..2c1918ca30dcfa8decea684ff6bfe11c602bbc7e 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> @@ -131,6 +131,7 @@ required:
>  
>  allOf:
>    - $ref: pci-ep.yaml#
> +
>    - if:
>        properties:
>          compatible:
> @@ -140,9 +141,43 @@ allOf:
>      then:
>        properties:
>          reg:
> +          minItems: 6

That's not really necessary - minItems: 6 is in the top level. It
doesn't hurt, though.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof