(In reply to Alex Deucher from comment #2)
> This patchset may help:
> https://patchwork.freedesktop.org/series/52164/

Thank you, Alex.

I can confirm, the patches worked for me.
I have adapted them for Linux 4.19.2 - 
https://gist.github.com/arno01/8115ef124fe7f42bbf1c317892013e86

Any plans for including them in the next Linux release?

Kind Regards,
Andrey Arapov