linux-kernel - Re: [PATCH] dt-bindings: PCI: qcom: Allow 'dma-coherent' property

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Message-ID: <167027915042.2799181.8429355168491802390.robh@kernel.org>
Date:   Mon, 5 Dec 2022 16:25:51 -0600
From:   Rob Herring <robh@...nel.org>
To:     Johan Hovold <johan+linaro@...nel.org>
Cc:     linux-pci@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Lorenzo Pieralisi <lpieralisi@...nel.org>
Subject: Re: [PATCH] dt-bindings: PCI: qcom: Allow 'dma-coherent' property


On Mon, 05 Dec 2022 10:45:30 +0100, Johan Hovold wrote:
> Devices on some PCIe buses may be cache coherent and must be marked as
> such in the devicetree to avoid data corruption.
> 
> This is specifically needed on recent Qualcomm platforms like SC8280XP.
> 
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
> 
> Lorenzo, the corresponding SC8280XP DT fix is heading for 6.2 so it
> would be nice if this one could be merged for 6.2-rc1 (or -rc2) as well
> to avoid the corresponding DT validation warnings.
> 
> Johan
> 
> 
>  Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring <robh@...nel.org>