From: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Date: Mon, 11 Sep 2006 07:04:50 +0000 (+0300)
Subject: ARM: OMAP: GPIO: IRQSTATUS2 workaround for retention state
X-Git-Tag: v2.6.18-omap1~74
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ba03e67f5344774015bd05c956e3d10bac74694;p=pandora-kernel.git

ARM: OMAP: GPIO: IRQSTATUS2 workaround for retention state

In OMAP2420, an incoming GPIO interrupt always sets both GPIO_IRQSTATUS1
and GPIO_IRQSTATUS2, even if the relevant bit is disabled in
GPIO_IRQENABLE1/2 and DSP doesn't use GPIO at all. GPIO_IRQSTATUS1
is for MPU and GPIO_IRQSTATUS2 is for DSP. If IRQSTATUS is set, this
will prevent the system from going to idle state. This patch also clears
IRQSTATUS2 to avoid the above situation.

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
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