K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-01-12T04:07:03.412582Z
K 7
svn:log
V 607
regulator: small enhancements to regulator_shutdown

Highlights:

- Exit early if we're not disabling unused regulators; there's no need to
  take the regulator topology lock and re-evaluate this every iteration, as
  it's not going to change.
- Don't emit a notice that we're shutting down a regulator if it's not
  enabled, to reduce noise.
- Mention the outcome of the shutdown, to aide debugging and easily let
  developer/user collect list of regulators we actually shutdown to
  determine problematic one.

Reviewed by:	manu
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D22213

END