From: Alex Deucher <alexdeucher@gmail.com>
Date: Wed, 30 Jun 2010 16:02:03 +0000 (-0400)
Subject: drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)
X-Git-Tag: v2.6.35-rc4~15^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f892034a8ce80ed7098f667aae2eb6300e570603;p=pandora-kernel.git

drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)

Some IGP systems specify the system memory clock in the Firmware
table rather than the IGP info table.  Check both and make sure
we have a value system memory clock value.

v2: make sure rs690_pm_info is called on rs780/rs880 as well.

fixes a regression since 07d4190327b02ab3aaad25a2d168f79d92e8f8c2.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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