17.06.2020 12:34, Daniel Stone пишет:
Hi,
On Tue, 16 Jun 2020 at 22:16, Dmitry Osipenko digetx@gmail.com 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
Hello Daniel,
Thank you very much for the pointer! I missed that Weston now uses the panel's orientation. I gave a quick test to the recent Weston and indeed it applies the transform in accordance to the connector's orientation property.