> > +               .compatible = "renesas,rcar-gen5-dmac",
> > +               .data = &rcar_gen5_dmac_data,
> 
> I expect this can just point to rcar_gen4_dmac_data, once we have
> confirmed the IPMMU issue does not impact R-Car Gen4.

I'd be more than happy if this is the case somewhen.