https://bugzilla.kernel.org/show_bug.cgi?id=111271
--- Comment #7 from Jean-Yves Faye jean-yves.faye@c-s.fr --- Created attachment 202021 --> https://bugzilla.kernel.org/attachment.cgi?id=202021&action=edit dumb patch
Some experimentation lead me to this patch, this seems to resolve the problem, but I have no idead what this function should write in the register so I'm hoping for someone here to explain the problem.