Hi Biju! Thanks for the patches and sorry for slow feedback. Luckily you have Geert to help out and I can see this is already getting in nice shape. On Thu, Aug 2, 2018 at 4:17 PM Biju Das <biju.das@xxxxxxxxxxxxxx> wrote: > Update the DT bindings documentation with the optional gpio-reserved-ranges > properties. > > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx> > Reviewed-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> (...) > + - gpio-reserved-ranges: Set of tuples to specify the unused GPIOs.This > + property indicates the start and size of the GPIOs that can't be used. > + > Please refer to gpio.txt in this directory for details of gpio-ranges property > and the common GPIO bindings used by client devices. You see it yourself if you look at the context below: just refer to the existing documentation in gpio.txt as this is a standard bindings. The absolutely best (IIUC) is: gpio-ranges: See gpio.txt gpio-reserved-ranges: See gpio.txt Maybe you could add an extra example using the reserved ranges? Yours, Linus Walleij