Hi Geert, On Monday 14 Nov 2016 14:35:26 Geert Uytterhoeven wrote: > On Mon, Nov 14, 2016 at 2:07 PM, Laurent Pinchart wrote: > > This simple series adds GPIO keys support to both the H3- and M3-W-based > > Salvator-X boards. Please see individual patches for details. > > Thanks for your series! > > The main reason I haven't sent out a similar series yet is because the GPIOs > used for the 3 push buttons are shared with the 3 user LEDs. For each of > them, you have to choose at DT time if you want to use them as buttons or > as LEDs. > > On ULCB, the same issue is present. For those, we settled on 1 key and 2 > LEDs... > > Looking forward to more comments... In theory the GPIOs could be shared by the gpio-keys and LED drivers in open- drain mode. I'm not sure the GPIO subsystem supports that though. -- Regards, Laurent Pinchart
