[PATCH] gpio/generic: initialize the shadow of direction register
Shawn Guo
shawn.guo at freescale.com
Wed May 16 03:29:00 EDT 2012
On Wed, May 16, 2012 at 08:53:42AM +0200, Lothar Waßmann wrote:
> > @@ -394,6 +394,10 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
> > return ret;
> >
> > bgc->data = bgc->read_reg(bgc->reg_dat);
> > + if (bgc->gc.set == bgpio_set_set)
> > + bgc->data = bgc->read_reg(bgc->reg_set);
> > + if (bgc->reg_dir)
> > + bgc->dir = bgc->read_reg(bgc->reg_dir);
> >
> > return ret;
> > }
> >
> That might change the behaviour of existing implementations.
>
Can you be specific? I do not quite follow on that.
--
Regards,
Shawn
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