linux-kernel - [PATCH 2/2] oaktrail: panel display quality fix

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Date:	Tue, 20 Dec 2011 15:58:44 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	airlied@...ux.ie, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] oaktrail: panel display quality fix

From: Alan Cox <alan@...ux.intel.com>

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@...ux.intel.com>
---

 drivers/gpu/drm/gma500/oaktrail_lvds.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)


diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 7dc892a..238bbe1 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:

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