Regulator regression in next-20180305

[Fabio Estevam]

Hi Mark,

On Tue, Mar 6, 2018 at 4:12 PM, Mark Brown <broonie at kernel.org> wrote:

> Yeah, that's what I expected.  What we really need to figure out I think
> is what exactly is taking the lock that we end up colliding with, I
> don't seem to be able to reproduce so I'm having to just go on staring
> at the code here.

Any debug options I should turn on in order to help us to understand
more on the lock issue?