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Author SHA1 Message Date
Mike Frysinger
6801201ee7 gpio: check request result 
Make sure the pin request passed before attempting to use it later on.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2011-04-13 15:57:00 -04:00
Mike Frysinger
a972b8d701 gpio: generalize for all generic gpio providers 
The Blackfin gpio command isn't terribly Blackfin-specific.  So generalize
the few pieces into two new optional helpers:
	name_to_gpio() - turn a string name into a GPIO #
	gpio_status() - display current pin bindings (think /proc/gpio)

Once these pieces are pulled out, we can relocate the cmd_gpio.c into the
common directory.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2011-04-13 15:56:51 -04:00