Hi Geert,

> > + * Copyright (C) 2014-19 Renesas Electronics Corporation
> 
> Why this addition?

Because of the funding. Is it wrong?

> > +       /* switch from TX (address) to RX (data) adds two interrupts */
> 
> Perhaps this change can be moved into patch 6/7?

Could be here or there IMO. Do you have a strong opinion about moving
it?

Thanks for the review!

   Wolfram