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

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Message-ID: <Y48s09HMMkb34kRn@hovoldconsulting.com>
Date:   Tue, 6 Dec 2022 12:51:47 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Lorenzo Pieralisi <lpieralisi@...nel.org>
Cc:     Johan Hovold <johan+linaro@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...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] dt-bindings: PCI: qcom: Allow 'dma-coherent' property

On Tue, Dec 06, 2022 at 11:56:34AM +0100, Lorenzo Pieralisi wrote:
> On Mon, Dec 05, 2022 at 10:45:30AM +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.
> 
> What's the commit base for this patch ? I tried applying to my pci/dt
> branch to no avail, please let me know and I will merge it.

That should be pci/qcom which has 3a936b2a5a58 ("dt-bindings: PCI: qcom:
Add SC8280XP/SA8540P interconnects").

Johan