[U-Boot] [PATCH v8 2/4] gpio: Replace ARM gpio.h with the common API in include/asm-generic

[Mike Frysinger]

On Monday 07 November 2011 11:35:33 Stephen Warren wrote:
> Joe Hershberger wrote at Friday, November 04, 2011 8:25 PM:
> > -void gpio_free(int gp)
> > +int gpio_free(unsigned gpio)
> >  {
> > +	return 0;
> >  }
> 
> If you're doing a cleanup pass on this driver, you may as well make
> gpio_free() do something; it should probably clear gpio_names[gpio].name
> and perhaps set the pin back to SFIO - in other words, undo gpio_reqeust().

i think the decision made in Linux was that freeing a GPIO should not cause it 
to change tristate or anything.  all it should do is mark it as "available" so 
something else can request it.
-mike
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