[PATCH 1/2] ARM: dts: imx6qdl-sabresd: Add hog entry for GPIO4_10

Shawn Guo shawn.guo at linaro.org
Sun Feb 16 21:19:53 EST 2014


On Sun, Feb 16, 2014 at 11:11:40PM -0300, Fabio Estevam wrote:
> On Sun, Feb 16, 2014 at 11:05 PM, Shawn Guo <shawn.guo at linaro.org> wrote:
> > On Thu, Feb 13, 2014 at 01:53:58PM -0200, Fabio Estevam wrote:
> >> GPIO4_10 is the GPIO used to turn on the regulator that powers up the codec.
> >>
> >> Add a hog entry for it.
> >
> > I'm going to be strict on hog pin use.  It does not sound like a true
> > hog pin.  Is it possible to have a pinctrl state for that regulator
> > setting this pin up?
> 
> Could you please explain when a pin should or should not be placed
> into the hog group?

The hog group is for those pins that do not belong to any particular
client device.  IOW, we should only put a pin into hog group when it
can not be put into any client device's pinctrl state.

Shawn




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