drm/nouveau/mc: switch to device pri macros

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/nv04.c
index 84670aa..6e2fb94 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/nv04.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/nv04.c
@@ -42,9 +42,10 @@
 nv04_mc_init(struct nvkm_object *object)
 {
 	struct nvkm_mc *mc = (void *)object;
+	struct nvkm_device *device = mc->subdev.device;
 
-	nv_wr32(mc, 0x000200, 0xffffffff); /* everything enabled */
-	nv_wr32(mc, 0x001850, 0x00000001); /* disable rom access */
+	nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */
+	nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */
 
 	return nvkm_mc_init(mc);
 }