[PATCH v3 0/4] gpiolib: add gpio_request_{in,out}put support

[Antony Pavlov]

v3:
 - gpio_request() error message is <<handled by the caller>>

v2:
 - add error messages to comply with requirements of Jean-Christophe

[PATCH v3 1/4] gpiolib: fix whitespaces
[PATCH v3 2/4] gpiolib: add gpio_request_{in,out}put support
[PATCH v3 3/4] at91sam9*: use gpio_request_output()
[PATCH v3 4/4] animeo_ip: use gpio_request_input()