> > >+		i2c6: i2c@e60b0000 {
> > 
> >    I'd use iic0 as the label.
> 
> I have no preference here other than that we try to be consistent
> in DT for different R-Car SoCs. Wolfram, do you have an opinion on this?

Back then, for M2-W, I decided to go with the schematics/datasheets.
And those mentioned i2c6 rather than iic0. For that reason, the comment

"/* The memory map in the User's Manual maps the cores to bus numbers */"

exists in r8a7791.dtsi. Dunno the manual of this SoC here.