From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: Konrad Dybcio <quic_kdybcio@quicinc.com>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sdm850-lenovo-yoga-c630: make SMMU non-DMA-coherent
Date: Tue, 25 Feb 2025 14:38:53 +0100 [thread overview]
Message-ID: <3956606b-71de-4c71-afb0-c4918888db19@oss.qualcomm.com> (raw)
In-Reply-To: <20250215-yoga-dma-coherent-v1-1-2419ee184a81@linaro.org>
On 15.02.2025 3:43 AM, Dmitry Baryshkov wrote:
> The commit 6b31a9744b87 ("arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on
> apps_smmu") enabled dma-coherent property for the IOMMU device. This
> works for some devices, like Qualcomm RB3 platform, but at the same time
> it breaks booting on Lenovo Yoga C630 (most likely because of some TZ
> differences). Disable DMA coherency for IOMMU on Lenove Yoga C630.
>
> Fixes: 6b31a9744b87 ("arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu")
> Cc: stable@vger.kernel.org
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
Let's revert the offending commit instead, this must have been some
sort of fw development fluke..
Konrad
prev parent reply other threads:[~2025-02-25 13:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-15 2:43 Dmitry Baryshkov
2025-02-25 13:38 ` Konrad Dybcio [this message]
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