On 25/07/2014 at 10:59:03 +0200, Jiří Prchal wrote : > >>Of course, it's the way, but in all other drivers, for example LEDS, > >>it's not needed. And in other way, if I will not use PA14 at all, > >>the pin will goes down every spi transfer. > > > >You must not assumed that the pins are muxed to their default state > >which is gpio and you should set the pinctrl accordingly for each > >device. > > > >If you don't use PA14 at all, then you don't really care about its > >state... > Yes and no, what about on board is populated some chip on PA14, but > for some reason at this time I don't need it and not defined in DT? > > If this is really an issue for that chip, I would think that you will change the bootloader to not mux PA14 to periph A and stop it from trying to read it like an spi flash ? -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html