From: Alex Deucher <alexdeucher@gmail.com>
Date: Sat, 6 Feb 2010 22:06:42 +0000 (-0500)
Subject: drm/radeon/kms: take the pm mutex when using hw i2c
X-Git-Tag: v2.6.34-rc1~209^2~10^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57fcab620d05c3eb32b4787ce7501565c4c3162d;p=pandora-kernel.git

drm/radeon/kms: take the pm mutex when using hw i2c

we need a constant sclk for i2c prescale.  Also,
get the current sclk when calculating prescale rather
than using the default sclk.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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