I don't exactly know which registers DISPC_OVL_BA0 are and what they do but, I have digged throughthe source code and found out that the reason is a different framebuffer base address
in omap_plane_atomic_update().So it is just a side-effect of loading the driver in a different sequence compared to others. And should not bethe reason for our symptoms.The symptoms are:* with mipi-debug driver and ssd2858 script it works in normal or rotation mode (this is how ED presents the Pyra to the public)* it does not work (although it did last week) in ssd test pattern output mode.* with ssd2858.ko it shows a b/w striped pattern (which does not depend on video input) - but the pattern rotates if the ssd2858 is instructed to do so