[PATCH 1/2] Add initial regulator support

[Alexander Aring]

On Mon, Apr 28, 2014 at 10:00:30PM +0200, Sascha Hauer wrote:
> On Mon, Apr 28, 2014 at 08:51:21PM +0200, Alexander Aring wrote:
> > Hi,
> > 
> > On Mon, Apr 28, 2014 at 08:47:02PM +0200, Sascha Hauer wrote:
> > > 
> > > I think both functions should return 0 without a valid gpio instead.
> > > Anyway, there's something wrong here.
> > > 
> > 
> > maybe checking on this at probe time, at the beginning or can this gpio
> > changed at runtime?
> > 
> > Maybe you don't need this here because probe will already failed with a
> > invalid gpio.
> 
> No, the gpio is optional. Getting a fixed regulator without software
> control is one usecase of the driver, just like in the kernel.
> 

I understand now. That's why we should return 0, because it's optional.
Thanks.

- Alex