[RFC 3/5] regulator: core: Only apply constraints if available on list voltage

[Mark Brown]

On Wed, Jul 30, 2014 at 10:49:25AM +0200, Javier Martinez Canillas wrote:
> On 07/29/2014 07:18 PM, Mark Brown wrote:

> > I would also expect any regulator where the supplied devices are able to
> > vary the voltage to explicitly provide a constraint even if the
> > implementation is done in a parent regulator.  There may be constraints
> > on the child supply which aren't directly present on the parent supply
> > and can be ignored if the child supply is turned off.

> Agreed, if I explicitly set the voltage constraints on the child supply then
> this patch is indeed not needed.

We will, however, need some code to pass the child supply constraints on
to the parent.
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