gpio: generic: add get_direction support

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Allow to determine the current direction configuration by
reading back from the direction register.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Philipp Zabel 2015-06-12 18:20:35 +02:00 • committed by Linus Walleij

parent bc0195aad0

commit db3b0fcc5a

1 changed files with 18 additions and 0 deletions

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drivers/gpio/gpio-generic.c

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