v4.19.13 snapshot.
diff --git a/drivers/gpu/drm/ast/Makefile b/drivers/gpu/drm/ast/Makefile
new file mode 100644
index 0000000..617fdd3
--- /dev/null
+++ b/drivers/gpu/drm/ast/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the drm device driver.  This driver provides support for the
+# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+
+ast-y := ast_drv.o ast_main.o ast_mode.o ast_fb.o ast_ttm.o ast_post.o ast_dp501.o
+
+obj-$(CONFIG_DRM_AST) := ast.o