https://bugzilla.kernel.org/show_bug.cgi?id=206393
--- Comment #10 from Alex Deucher (alexdeucher@gmail.com) --- (In reply to Bjoern Franke from comment #9)
Issue seems to be fixed in 5.6.0-rc3, so it will be hopefully backported into the 5.5 branch.
Can you identify what patch fixed it for you?