Hi, Andre', I played with SPI and noticed that we have to propagate some clock rates to parents here. If you don't play with all the peripherals from the block you can't know what to propagate. So I think it's fine to not handle this topic right now. I'll come with a patch on top of yours when I finish the SPI validation. The patch is looking fine. I'll finish reviewing the series after v2 is out. Cheers, ta