Hi Biju,

I am starting now to review this series. Probably in batches, though,
not in one go.

> This patch series tested on smarc-rz{v2l,g2l,g2lc,g2ul,g3s,g3l,g3e},
> rz{v2h,t2h}-evk and hihope-rz{g2h,g2m,g2n} boards

This plenty of testing is really good! Hihope boards means you basically
tested it on R-Car Gen3 compatible versions. I will test this on a
SparrowHawk board, so we have R-Car Gen4 covered as well. I don't expect
any problems, though. Gen4 is basically Gen3 when it comes to SDHI.

Happy hacking,

   Wolfram