These are straightforward 32-bit register write handlers. They're
necessary for a future patch which will use them for color expansion
from monochrome host data transfers.

Signed-off-by: Chad Jablonski <chad@jablonski.xyz>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
---
 hw/display/ati.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/display/ati.c b/hw/display/ati.c
index bd48b0db49..968ee4efca 100644
--- a/hw/display/ati.c
+++ b/hw/display/ati.c
@@ -931,6 +931,12 @@ static void ati_mm_write(void *opaque, hwaddr addr,
     case DP_CNTL:
         s->regs.dp_cntl = data;
         break;
+    case DP_SRC_FRGD_CLR:
+        s->regs.dp_src_frgd_clr = data;
+        break;
+    case DP_SRC_BKGD_CLR:
+        s->regs.dp_src_bkgd_clr = data;
+        break;
     case DP_DATATYPE:
         s->regs.dp_datatype = data & 0xe0070f0f;
         break;
-- 
2.51.2