diff --git a/openpower/linux/0013-drm-ast-Fix-test-for-VGA-enabled.patch b/openpower/linux/0013-drm-ast-Fix-test-for-VGA-enabled.patch
new file mode 100644
index 0000000..f27d6c1
--- /dev/null
+++ b/openpower/linux/0013-drm-ast-Fix-test-for-VGA-enabled.patch
@@ -0,0 +1,39 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Y.C. Chen" <yc_chen@aspeedtech.com>
+Date: Wed, 22 Feb 2017 15:10:50 +1100
+Subject: [PATCH 13/15] drm/ast: Fix test for VGA enabled
+
+The test to see if VGA was already enabled is doing an unnecessary
+second test from a register that may or may not have been initialized
+to a valid value. Remove it.
+
+Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Signed-off-by: Joel Stanley <joel@jms.id.au>
+---
+ drivers/gpu/drm/ast/ast_post.c | 8 ++------
+ 1 file changed, 2 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
+index c15f643915af..a5a780921553 100644
+--- a/drivers/gpu/drm/ast/ast_post.c
++++ b/drivers/gpu/drm/ast/ast_post.c
+@@ -59,13 +59,9 @@ bool ast_is_vga_enabled(struct drm_device *dev)
+ 		/* TODO 1180 */
+ 	} else {
+ 		ch = ast_io_read8(ast, AST_IO_VGA_ENABLE_PORT);
+-		if (ch) {
+-			ast_open_key(ast);
+-			ch = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff);
+-			return ch & 0x04;
+-		}
++		return !!(ch & 0x01);
+ 	}
+-	return 0;
++	return false;
+ }
+ 
+ static const u8 extreginfo[] = { 0x0f, 0x04, 0x1c, 0xff };
+-- 
+2.11.0
+