From: Alan Cox <alan@linux.intel.com>
Date: Tue, 20 Dec 2011 15:58:44 +0000 (+0000)
Subject: gma500/oaktrail: panel display quality fix
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e2e022ec51a7e85ce4352a53fde1cd11d58e151a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

gma500/oaktrail: panel display quality fix

The GCT setup was used on Moorestown. The Oaktrail version uses a normal PC
interface. That means we must also honour the dither info from the BIOS
data.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 7dc892ae7241..238bbe105304 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -375,6 +375,8 @@ void oaktrail_lvds_init(struct drm_device *dev,
 	if (dev_priv->vbt_data.size != 0x00)
 		mode_dev->panel_wants_dither = (dev_priv->gct_data.
 			Panel_Port_Control & MRST_PANEL_8TO6_DITHER_ENABLE);
+        if (dev_priv->lvds_dither)
+                mode_dev->panel_wants_dither = 1;
 
 	/*
 	 * LVDS discovery: