From: Tomas Hallenberg <tomas.hallenberg@pelagicore.com>
Date: Wed, 27 Oct 2010 22:33:17 +0000 (-0700)
Subject: gpio: timbgpio: use a copy of the IER register to avoid it being trashed
X-Git-Tag: v2.6.37-rc1~85^2~118
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76d800a5b6e198c4fda07b88bb42a545709f193b;p=pandora-kernel.git

gpio: timbgpio: use a copy of the IER register to avoid it being trashed

Some versions of the hardware can trash the IER register if simultaneous
interrupts occur.  This patch works around it by using a local copy of the
register and restoring it after every interrupt.

Signed-off-by: Tomas Hallenberg <tomas.hallenberg@pelagicore.com>
Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

Reading git-diff-tree failed