Hi Dmitry, On Sun, Nov 26, 2017 at 12:33 AM Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote: > On Fri, Nov 24, 2017 at 10:30:40AM +0100, Linus Walleij wrote: > > The goal I'm working toward is to rid the kernel of the global > > GPIO numberspace. > > > > This means GPIO lines should be references by the local offset > > on the GPIO chip. > > > > This patch set starts to move gpio_keys toward using GPIO > > look-up tables instead of global GPIO numbers to find their > > GPIOs. > > > > As an example I did (I think) the necessary patches to > > convert DaVinci and i.MX to use this. There are several users > > also x86 platform devices. (...) > I think this is a worthy goal, but I wonder if we could get static GPIO > descriptors work with fwnode_get_named_gpiod() so we could retire the > platform data parsing altogether. We'd need to extend static device > properties to have notion of children though. Do we have this now? I've looked at Heikki's et al work on software nodes but I cannot see whether we are there now. We have fwnode_create_software_node() and friends, but I haven't seen if this can be used with input and GPIO descriptors are still a bit on the side. I can create a lot of properties but not really add a descriptor table as a software node as far as I can tell. I'm also a bit lost on whether it will be possible to get there sadly :/ Yours, Linus Walleij
