Re: [PATCH/RFT 2/3] mmc: renesas_sdhi: Add r8a77965 support

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> With the current state of the driver this patch should be fine,
> modulo the changes suggested above. But once HS400 support is merged
> some logic will be required to disable that feature for the r8a77965
> until HS400 support for that SoC is explicitly added.
> 
> Or conversely, perhaps when HS400 is added it should only be enabled
> in the driver for SoCs that are known to work: r8a7796 and r8a7795. In the
> case of the latter perhaps only ES2.0.
> 
> Wolfram, what do you think?

M3-N (and future SoCs as it seems) has 8 taps while the others have 4.
Maybe we should have something already in place to distinguish 8 taps
and 4 taps and leave the 8 taps part for "to be added later"?

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