From: Lorenzo Pieralisi <lpieralisi@kernel.org>
To: Johan Hovold <johan+linaro@kernel.org>
Cc: "Andy Gross" <agross@kernel.org>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konrad.dybcio@linaro.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dt-bindings: PCI: qcom: Allow 'dma-coherent' property
Date: Tue, 6 Dec 2022 11:56:34 +0100 [thread overview]
Message-ID: <Y48f4ktAwsPBW60y@lpieralisi> (raw)
In-Reply-To: <20221205094530.12883-1-johan+linaro@kernel.org>
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@kernel.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.
Lorenzo
>
> Johan
>
>
> Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 2f851c804bb0..a5859bb3dc28 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -62,6 +62,8 @@ properties:
> minItems: 3
> maxItems: 13
>
> + dma-coherent: true
> +
> interconnects:
> maxItems: 2
>
> --
> 2.37.4
>
next prev parent reply other threads:[~2022-12-06 10:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-05 9:45 [PATCH] dt-bindings: PCI: qcom: Allow 'dma-coherent' property Johan Hovold
2022-12-05 22:25 ` Rob Herring
2022-12-06 10:56 ` Lorenzo Pieralisi [this message]
2022-12-06 11:51 ` Johan Hovold
2022-12-06 12:19 ` Lorenzo Pieralisi
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