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SubjectRe: [PATCH v3 1/3] dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
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On 19/09/2022 10:26, Chengci.Xu wrote:
> Adds descriptions for mt8188 IOMMU which also use ARM Short-Descriptor
> translation table format.
>
> In mt8188, there are two smi-common HW and IOMMU, one is for vdo(video
> output), the other is for vpp(video processing pipe). They connects
> with different smi-larbs, then some setting(larbid_remap) is different.
> Differentiate them with the compatible string.
>
> Something like this:
>
> IOMMU(VDO) IOMMU(VPP)
> | |
> SMI_COMMON_VDO SMI_COMMON_VPP
> --------------- ----------------
> | | ... | | ...
> larb0 larb2 ... larb1 larb3 ...
>
> We also have an IOMMU that is for infra master like PCIe.
> And infra master don't have the larb and ports.
>
> Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof

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