From 1a3b09dc9aeaaab25ff736c2443df423a8fb655e Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Wed, 15 Oct 2008 22:03:49 -0700
Subject: [PATCH] fbmon: fix EDID parser to detect interlace modes

The current EDID parser in the linux kernel ignores interlace modes.  The
patch looks for the edid interlace flag and adjusts the vertical
resolution if it is found.

Signed-off-by: Jon Dufresne <jon.dufresne@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/fbmon.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 6a0aa180c266..5c1a2c01778f 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -564,7 +564,13 @@ static void get_detailed_timing(unsigned char *block,
 		mode->sync |= FB_SYNC_VERT_HIGH_ACT;
 	mode->refresh = PIXEL_CLOCK/((H_ACTIVE + H_BLANKING) *
 				     (V_ACTIVE + V_BLANKING));
-	mode->vmode = 0;
+	if (INTERLACED) {
+		mode->yres *= 2;
+		mode->upper_margin *= 2;
+		mode->lower_margin *= 2;
+		mode->vsync_len *= 2;
+		mode->vmode |= FB_VMODE_INTERLACED;
+	}
 	mode->flag = FB_MODE_IS_DETAILED;
 
 	DPRINTK("      %d MHz ",  PIXEL_CLOCK/1000000);
-- 
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