ivybridge: LVDS gfx init.

Change-Id: If71e9c94922cd4283d5e175dfd8757d398a72be1
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5285
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c
index a82a284..d271a1a 100644
--- a/src/northbridge/intel/sandybridge/gma.c
+++ b/src/northbridge/intel/sandybridge/gma.c
@@ -650,7 +650,9 @@
 	physbase = pci_read_config32(dev, 0x5c) & ~0xf;
 	graphics_base = dev->resource_list[1].base;
 
-	i915lightup(conf, physbase, iobase, mmiobase, graphics_base);
+	int lightup_ok = i915lightup(conf, physbase, iobase, mmiobase, graphics_base);
+	if (lightup_ok)
+		gfx_set_init_done(1);
 #endif
 }