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u-boot-bpi-r3/cmd/gpio.c
Simon Glass b71bea7129 gpio: Report errors when GPIOs cannot be read 
Some controllers do not allow the output value to be read. Detect this and
report the error in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-17 21:27:37 -06:00

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