Re: [PATCH mmc/next v3 0/4] mmc: renesas_sdhi: add support for R-Car Gen3 SDHI DMAC

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> this series adds support for the internal DMAC used by r8a779[56] SoCs.
> This is achieved by adding a new variant of the SDHI driver for this
> DMA controller with compat strings for the r8a779[56] SoCs.
> Compat strings for these SoCs are also removed from the existing SYS DMAC
> variant of the SDHI driver.

Okay, I tested some more today. My conclusion is that the series works
so far. However, it quite often triggers a SDR50 retune with one card.
And that sends an explicit CMD12 which we don't handle well. I always
suspected the code to be imperfect, now I have a proof. So, that is a
good thing but seems unrelated to this series to me.

Another card does not retune and works flawlessly.

I will sleep over it, re-test tomorrow and if my findings will get
confirmed, then I'll give my Reviewed-by tags to this series.

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