On Tue, 16 Aug 2022 at 10:59, Alex Bennée <alex.ben...@linaro.org> wrote: > Shiny Saana <shinysa...@gmail.com> writes: > > I personally don't need any of the GPIO interfaces, but if needed > > by someone else, that could be a good second step to > > work on once that part of the board is implemented. > > Handling GPIOs in QEMU is fine (we have things like the qdev_init_gpio_* > functions to handle them). The problem is usually what to do with the > actual general purpose pins which aren't wired to something we emulate > in the board. Some boards expose their values via QMP properties but I > suspect whats really needed is a generic mechanism for exposing GPIO to > external scripts rather than have every board define it's own thing.
Yes. However one key thing for trying to get a new board model in is not to get tangled up in trying to improve/extend the core QEMU facilities for something. That's much harder than "my board model supports GPIO output lines to the same extent as the other existing board models" :-) thanks -- PMM
