[U-Boot] [PATCH 06/20] iMX28: Add GPIO control

Marek Vasut
2011-11-10T17:44:18Z

> On Thursday 10 November 2011 11:58:17 Marek Vasut wrote:
> > > On Wednesday 09 November 2011 04:18:13 Marek Vasut wrote:
> > > > +int gpio_request(int gp, const char *label)
> > >
> > > all of these gpio funcs should be "unsigned gpio"
> >
> > It's a problem of API then?
> >
> > include/asm/gpio.h:int gpio_request(int gp, const char *label);
>
> a patch has been posted already to fix that

Posted, yes ... applied?

>
> > TBH, I can't imagine gpio number to be lower than zero, but who knows.
>
> such a value makes no sense. the incoming number is interpreted by the
> gpio driver, so the starting/ending numbers are completely arbitrary.
> thus we deal with unsigned only.
> -mike

Definitelly.