Re: [PATCH] arm64: dts: qcom: sdm850-lenovo-yoga-c630: make SMMU non-DMA-coherent

[Konrad Dybcio]

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@xxxxxxxxxxxxxxx
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---

Let's revert the offending commit instead, this must have been some
sort of fw development fluke..

Konrad