Hi
On Wed, Dec 16, 2015 at 04:50:07PM +0200, Vladimir Zapolskiy wrote:
> Hi Michael,
>
> On 16.12.2015 16:05, Michael Trimarchi wrote:
> > Hi
> >
> > I have get a problem using gpio and imx6q freescale architecture.
>
> what is the problem you experience? What is the version of the kernel
> (commit hash id) you run?
>
I don't want the mask back when I read the gpio. I want to know if it's
1 or 0
Michael
> > I don't really understand how should work your change and I have done a
> > quick
> > fix for me. Can you explain what was the idea?
>
> I believe here you are talking about changes b19e7f51a5 and
> 442b2494b17d1 , please explain the problem.
>
> With best wishes,
> Vladimir
>
> > Michael
> >
> > diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c
> > index a3f0753..f9c6ff7 100644
> > --- a/drivers/gpio/gpio-generic.c
> > +++ b/drivers/gpio/gpio-generic.c
> > @@ -139,11 +139,14 @@ static int bgpio_get_set(struct gpio_chip *gc,
> > unsigned int gpio)
> > {
> > struct bgpio_chip *bgc = to_bgpio_chip(gc);
> > unsigned long pinmask = bgc->pin2mask(bgc, gpio);
> > + unsigned long reg;
> >
> > if (bgc->dir & pinmask)
> > - return bgc->read_reg(bgc->reg_set) & pinmask;
> > + reg = bgc->read_reg(bgc->reg_set) & pinmask;
> > else
> > - return bgc->read_reg(bgc->reg_dat) & pinmask;
> > + reg = bgc->read_reg(bgc->reg_dat) & pinmask;
> > +
> > + return !!(reg & bgc->pin2mask(bgc, gpio));
> > }
> >
> > static int bgpio_get(struct gpio_chip *gc, unsigned int gpio)
> >
--
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