From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Sat, 26 Sep 2015 19:41:01 +0000 (+0200)
Subject: mmc: pxamci: fix card detect with slot-gpio API
X-Git-Tag: omap-for-v4.3/fixes-rc5~53^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd546ee6a7dc4b71ebc6d1205bf72ea3c1c7030a;p=pandora-kernel.git

mmc: pxamci: fix card detect with slot-gpio API

Move pxamci to mmc slot-gpio API to fix interrupt request.

It fixes the case where the card detection is on a gpio expander, on I2C
for example on zylonite board. In this case, the card detect netsted
interrupt is called from a threaded interrupt. The request_irq() fails,
because a hard irq cannot be a nested interrupt from a threaded
interrupt (set __setup_irq()).

This was tested on zylonite and mioa701 boards.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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