Even with the correct pin mux settings, you still need to explicitly
set the gpio direction. Call gpio_direction_input() after each
requested gpio.
Signed-off-by: NAndrew Clayton <andrew@digital-domain.net>
Signed-off-by: NMark Somerville <mark@scottishclimbs.com>
Tested-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NDaniel Mack <daniel@caiaq.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>