Revert "gpio: set up initial state from .get_direction()"

This reverts commit 72d32000.

We cannot blindly query the direction of all GPIOs when the pins are
first registered.  The get_direction callback normally triggers a
read/write to hardware, but we shouldn't be touching the hardware for
an individual GPIO until after it's been properly claimed.

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 1ca2a92b2a99323f666f1b669b7484df4bda05e4)

Git-commit: 1ca2a92b2a99323f666f1b669b7484df4bda05e4
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Change-Id: If5bd75fcfb7f1f4a347e3783101a590802270c11
Signed-off-by: Runmin Wang <runminw@codeaurora.org>