From 14759b88cebb19d4b09387bff89c11eeb141dfc3 Mon Sep 17 00:00:00 2001
From: Wenjing Liu <Wenjing.Liu@amd.com>
Date: Mon, 23 Dec 2019 16:05:05 -0500
Subject: drm/amd/display: skip opp blank or unblank if test pattern enabled
Git-commit: 31635887cb8d899584484620b597e401b2350a79
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

[why]
DPG is used to generate both blank and test automation test pattern.
When test automation is running the requested test pattern can be
overriden by the blank or unblank call because it is using the same
hardware.

[how]
When test pattern is requested, skip blank or unblank.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index f07899e270f5..cfbbaffa8654 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -945,6 +945,9 @@ void dcn20_blank_pixel_data(
 	int width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right;
 	int height = stream->timing.v_addressable + stream->timing.v_border_bottom + stream->timing.v_border_top;
 
+	if (stream->link->test_pattern_enabled)
+		return;
+
 	/* get opp dpg blank color */
 	color_space_to_black_color(dc, color_space, &black_color);
 
-- 
2.28.0