https://bugs.freedesktop.org/show_bug.cgi?id=102322
--- Comment #34 from dwagner jb5sgc1n.nya@20mm.eu --- (In reply to Doctor from comment #32)
Just cherry picking the code back to the last 4.16 and no problems Heres the working 4.16 . I chased this rabbit for awhile and it pops up like the dam wood chuck in caddie shack.
Here is the latest as of 11 hours ago 4.19-wip https://github.com/tekcomm/linux-image-4.19-wip-generic
I am not sure I understand what you are trying to tell us, here.
The repository you linked does not seem to contain any relevant commits changing kernel source code.