On Wed, Jul 08, 2015 at 01:21:40AM +0200, Peter Huewe wrote:

> -> How do we get companies to actively sponsor subsystem maintainership - if 
> only at driver or subsubsystem level.
> e.g.: I unfortunately failed at that with my company :/

One thing I found worked really well when I was working for a silicon
vendor was using employing maintainers as evidence of good software
support for shiny new features on Linux, both internally and externally.
That's obviously somewhat situation specific but it's one route.