From cc409f88e8f71235dda7d2eddae26e481503ea4d Mon Sep 17 00:00:00 2001
From: Hsin-Yi Wang <hsinyi@chromium.org>
Date: Fri, 1 Jul 2022 01:33:29 +0800
Subject: [PATCH] video: of_display_timing.h: include errno.h

commit 3663a2fb325b8782524f3edb0ae32d6faa615109 upstream.

If CONFIG_OF is not enabled, default of_get_display_timing() returns an
errno, so include the header.

Fixes: 422b67e0b31a ("videomode: provide dummy inline functions for !CONFIG_OF")
Suggested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/video/of_display_timing.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/video/of_display_timing.h b/include/video/of_display_timing.h
index e1126a74882a..eff166fdd81b 100644
--- a/include/video/of_display_timing.h
+++ b/include/video/of_display_timing.h
@@ -8,6 +8,8 @@
 #ifndef __LINUX_OF_DISPLAY_TIMING_H
 #define __LINUX_OF_DISPLAY_TIMING_H
 
+#include <linux/errno.h>
+
 struct device_node;
 struct display_timing;
 struct display_timings;