From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 21 Sep 2011 13:24:04 +0000 (+0800)
Subject: gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler()
X-Git-Tag: v3.2-rc1~124^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e44b6eccfcb0b2da65b0e9eddd5d8b4eac5d8df;p=pandora-kernel.git

gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler()

The mx3_gpio_irq_handler() is also called on imx6q which has GIC as
the primary interrupt controller.  As GIC implements the fasteoi flow
control, we need to add chained_irq_enter/exit() to
mx3_gpio_irq_handler() for signaling EOI, otherwise system will hang
whenever there is a gpio irq triggered.

v2: use chained_irq_{enter,exit}()

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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