[PATCH 3/3] iommu/arm-smmu-qcom: Use identity default domains for MDP5

[Konrad Dybcio]

On 10/30/26 11:04 PM, Dmitry Baryshkov wrote:
> drm/msm writes the addresses dma_map_sgtable() returns for the DRM
> device into its own page tables, so they have to be physical addresses,
> i.e. the device must not use iommu-dma. On MDP5 platforms the DRM
> device is the "qcom,mdp5" node, which is missing from the client list,
> and the msm8996 MMSS SMMUs have no qcom impl at all, so the device gets
> iommu-dma. On db820c the SoC then resets as soon as the GPU starts.
> 
> Add "qcom,mdp5" to the list, which also covers sdm630/660, and give
> msm8996 an impl with just def_domain_type, keeping the bypass emulation
> out of it.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>

Konrad