On Wed, 2020-06-10 at 15:37 +0200, Greg Kroah-Hartman wrote:

Please work with the infrastructure we have, we have spent a lot of time
and effort to make it uniform to make it easier for users and
developers.

Not quite.

This lack of debug grouping by type has been a
_long_ standing issue with drivers.

Don't regress and try to make driver-specific ways of doing
things, that way lies madness...

It's not driver specific, it allows driver developers to
better isolate various debug states instead of keeping
lists of specific debug messages and enabling them
individually.