On Mon, Mar 05, 2012 at 01:24:42PM -0800, Greg Kroah-Hartman wrote:

> Or, as this really is a bus-specific thing, have you converted any
> busses to use it?  If so, I'd like to take that patch at the same time,
> I'm leary of infrastructure changes without any users.

It's not bus specific, it's more subsystem and/or driver specific.
There was a patch to the regulator core which would add at least one
user.