From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Tue, 23 Jan 2024 17:20:06 +0000 (-0500)
Subject: drm/amd/display: Increase ips2_eval delay for DCN35
X-Git-Tag: v6.8-rc5~26^2~1^2~2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=0d555e481c1333c8ae170198ca111947c22fc9c9;p=linux-2.6-block.git

drm/amd/display: Increase ips2_eval delay for DCN35

[Why]
New worst-case measurement observed at 1897us.

[How]
Increase to 2000us to cover the new worst case + margin.

Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
index 1c3d89264ef7..5fdcda8f8602 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
@@ -780,7 +780,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.disable_z10 = false,
 	.ignore_pg = true,
 	.psp_disabled_wa = true,
-	.ips2_eval_delay_us = 1650,
+	.ips2_eval_delay_us = 2000,
 	.ips2_entry_delay_us = 800,
 	.static_screen_wait_frames = 2,
 };