From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 25 Jan 2013 17:05:58 +0100
Subject: [PATCH] drm/cirrus: Correct register values for 16bpp
Patch-mainline: Submitted
References: bnc#799216

When the mode is set with 16bpp on QEMU, the output gets totally
broken.  The culprit is the bogus register values set for 16bpp,
which was likely copied from from a wrong place.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=799216

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/cirrus/cirrus_mode.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -273,8 +273,8 @@ static int cirrus_crtc_mode_set(struct d
 		sr07 |= 0x11;
 		break;
 	case 16:
-		sr07 |= 0xc1;
-		hdr = 0xc0;
+		sr07 |= 0x17;
+		hdr = 0xc1;
 		break;
 	case 24:
 		sr07 |= 0x15;
