Hi, On Tue, 16 Jun 2020 at 22:16, Dmitry Osipenko <digetx@xxxxxxxxx> wrote: > The panel's orientation could be parsed by any panel driver and then > assigned as the connector's property in order to allow userspace/FB-core > to decide what to do with the rotated display. Apparently upstream > kernel supports only that one Samsung device which has display panel > mounted upside-down and it already uses the custom DT properties for > achieving the 180 rotation. So I don't quite see any panel drivers that > instantly could benefit from using the rotation property. Perhaps I can > add the orientation support to the panel-simple driver, but will it be > useful to anyone? Yes, exposing it to userspace is helpful, since Weston at least will parse the property and then apply the correct transform: https://gitlab.freedesktop.org/wayland/weston/-/merge_requests/315 Cheers, Daniel
