From: Heiko Stübner <heiko@sntech.de>
Date: Tue, 15 Oct 2013 23:09:08 +0000 (+0200)
Subject: pinctrl: rockchip: emulate both edge triggered interrupts
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~13^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a92750133ffd998e92e4f7ed874fae61d67aeed;p=pandora-kernel.git

pinctrl: rockchip: emulate both edge triggered interrupts

The gpio interrupt controller on Rockchip socs can do edge triggers only
for single edges but not both. Nevertheless a lot of gpio users rely on
the availability of both-edge triggered interrupts - i.e. gpio-keys.

Therefore implement a solution similar to pinctrl-coh901 re-setting the
triggering edge depending on the gpio value in the interrupt demuxer.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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