From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Wed, 24 Oct 2012 14:25:27 +0000 (+0300)
Subject: gpiolib: add gpio get direction callback support
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~87^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80b0a6029272247f19146bf8f88e5d4bba94cba5;p=pandora-kernel.git

gpiolib: add gpio get direction callback support

Add .get_direction callback to gpio_chip. This allows gpiolib
to check the current direction of a gpio.
Used to show the correct gpio direction in sysfs and debug entries.

If callback is not set then gpiolib will work as previously;
e.g. guessing everything is input until a direction is set.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---

Reading git-diff-tree failed