From: Richard Zhao <linuxzsc@gmail.com>
Date: Sat, 17 Oct 2009 09:46:22 +0000 (+0800)
Subject: i2c: imx: check busy bit when START/STOP
X-Git-Tag: v2.6.32-rc6~7^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43309f3b521302bb66c4c9e66704dd3675e4d725;p=pandora-kernel.git

i2c: imx: check busy bit when START/STOP

The controller can't do anything else before it actually generates START/STOP.
So we check busy bit to make sure START/STOP is successfully finished.

If we don't check busy bit, START/STOP may fail on some fast CPUs.

Signed-off-by: Richard Zhao <linuxzsc@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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