https://bugzilla.kernel.org/show_bug.cgi?id=198123
--- Comment #14 from Bill Fraser (bill.fraser@gmail.com) --- (In reply to Daniel Vetter from comment #13)
Created attachment 273575 [details] test patch on top of b8e2b0199cc377617dc238f5106352c06dcd3fa2, v2
That patch fixes it for me!