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 58dd900083b9ec6141c8744040ac98ec084ca8ad..530f78f84deed250a2f96350254657b49a0166c9 100644 (file)
--- 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;