Re: [PATCH v8 1/7] dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
From: Krzysztof Kozlowski
Date: Tue Mar 14 2023 - 02:46:18 EST
On 14/03/2023 03:41, Yong Wu (吴勇) wrote:
> Hi Krzysztof,
>
> Thanks very much for your help review.
>
> On Wed, 2023-03-08 at 11:35 +0100, Krzysztof Kozlowski wrote:
>> On 07/03/2023 09:05, Yong Wu wrote:
>>> From: "Chengci.Xu" <chengci.xu@xxxxxxxxxxxx>
>>>
>>> Add 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@xxxxxxxxxxxx>
>>> Reviewed-by: Yong Wu <yong.wu@xxxxxxxxxxxx>
>>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
>>
>> Indeed, I missed broken checkpatch/DCO chain.
>
> Just confirm what this means.
>
> Do you mean MAINTAINERS need to be updated since we add a prefix
> "mediatek," for the header file?
No it means, run checkpatch.
Best regards,
Krzysztof