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drm/i915: Fix SSC frequence for IGDNG

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IGDNG LVDS SSC uses 120Mhz freq. This fixes one
1600x900 LVDS panel black issue on IGDNG with SSC enabled.

Cc: Stable Team <stable@kernel.org>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Zhenyu Wang 2009-09-19 14:54:07 +08:00 committed by Jesse Barnes
parent b09aea7fb3
commit 339e5a4c78
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_bios.c
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@ -217,6 +217,9 @@ parse_general_features(struct drm_i915_private *dev_priv,
if (IS_I85X(dev_priv->dev))
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 66 : 48;
else if (IS_IGDNG(dev_priv->dev))
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 100 : 120;
else
dev_priv->lvds_ssc_freq =
general->ssc_freq ? 100 : 96;