From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 21 Jan 2014 22:34:51 +0000 (-0800)
Subject: drm/cirrus: correct register values for 16bpp
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2510538fa000dd13a3e57b79bf073ffb1748976c;p=linux-beck.git

drm/cirrus: correct register values for 16bpp

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.

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

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: David Airlie <airlied@linux.ie>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
index 58dd900083b9..530f78f84dee 100644
--- 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 drm_crtc *crtc,
 		sr07 |= 0x11;
 		break;
 	case 16:
-		sr07 |= 0xc1;
-		hdr = 0xc0;
+		sr07 |= 0x17;
+		hdr = 0xc1;
 		break;
 	case 24:
 		sr07 |= 0x15;