From: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu, 10 Sep 2009 07:45:49 +0000 (+0800)
Subject: drm/i915: Write zero to DPLL_MD Reg for non-SDVO output
X-Git-Tag: v2.6.32-rc1~52^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb66c5122b4300b475b585fffb811311f39f5431;p=pandora-kernel.git

drm/i915: Write zero to DPLL_MD Reg for non-SDVO output

When the output device is LVDS, maybe the pixel clock of adjusted_mode will be
less than that in mode. In such case it will set the incorrect multipler factor
in DPLL_MD register.
So the dpll_md_reg will be reset when the output type is non-SDVO

https://bugs.freedesktop.org/show_bug.cgi?id=22761

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewd-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
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