drm/i915: Fix SSC frequence for IGDNG

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>
git-mirror · Sep 17, 2009 · 339e5a4 · 339e5a4
1 parent b09aea7
commit 339e5a4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
@@ -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;