[PATCH 4/6] regulator: lp872x: Add enable GPIO pin support

[Mark Brown]

On Wed, Dec 30, 2015 at 09:35:21AM +0100, Paul Kocialkowski wrote:

> In my opinion, it would be more elegant to adapt the core regulator
> framework to first enable the GPIO and then call the regulator enable
> ops callback instead of handling the GPIO in the driver.

Why would we want to actively manage both things at runtime?  It's more
work, what do we gain from it?
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