The GP-electronic T701 has its LCD panel mounted upside-down, initially
my plan was to fix this by transparently rotating the image in the i915
driver (my "drm/i915: Deal with upside-down mounted LCD" patch), but
that approach has been rejected instead the kernel will now export
a "panel orientation" property on the drm-connector for the panel and
let userspace deal with it.
Since the upside-down-ness of the panel is now no longer transparently
hidden from userspace, the current accel mount quirk for the T701 needs
to be updated to take the upside-down-ness into account.
14d89e3232