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

[Mike Frysinger]

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

> 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
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