linux-kernel - Re: [PATCH 2/6] dt-bindings: PCI: qcom-ep: enable DMA for SM8450

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Message-ID: <20250220072020.sj6grl24bfzwxvh7@thinkpad>
Date: Thu, 20 Feb 2025 12:50:20 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: 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>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] dt-bindings: PCI: qcom-ep: enable DMA for SM8450

On Mon, Feb 17, 2025 at 08:56:14PM +0200, Dmitry Baryshkov wrote:
> Qualcomm SM8450 platform can (and should) be using DMA for the PCIe EP
> transfers. Extend the MMIO regions and interrupts in order to acommodate
> for the DMA resources. Upstream DT doesn't provide support for the EP
> mode of the PCIe controller, so while this is an ABI break, it doesn't
> break any of the supported platforms.
> 
> Fixes: 63e445b746aa ("dt-bindings: PCI: qcom-ep: Add support for SM8450 SoC")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> index 800accdf5947e7178ad80f0759cf53111be1a814..460191fc4ff1b64206bce89e15ce38e59c112ba6 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> @@ -173,9 +173,9 @@ allOf:
>      then:
>        properties:
>          reg:
> -          maxItems: 6
> +          maxItems: 7
>          reg-names:
> -          maxItems: 6
> +          maxItems: 7
>          clocks:
>            items:
>              - description: PCIe Auxiliary clock
> @@ -197,9 +197,9 @@ allOf:
>              - const: ddrss_sf_tbu
>              - const: aggre_noc_axi
>          interrupts:
> -          maxItems: 2
> +          maxItems: 3
>          interrupt-names:
> -          maxItems: 2
> +          maxItems: 3
>  
>    - if:
>        properties:
> 
> -- 
> 2.39.5
> 

-- 
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