On Mon, 3 Jul 2023 at 05:21, Raphaël Gallais-Pou <rgallaispou@xxxxxxxxx> wrote: > >> spi-3wire; > >> spi-max-frequency = <10000000>; > >> dc-gpios = <&gpiod 13 0>; > >> + buswidth = <8>; > > > > There is no such spi property. > > While I agree with you, I saw in staging drivers that this property was > fetch in the device-tree by the fbtft core. > > Should I document those in or try to do it another way ? You cannot use undocumented properties. Whether this should be used at all, depends what's this, why other properties cannot be used etc.