From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Tue, 23 Jan 2024 17:20:06 +0000 (-0500)
Subject: drm/amd/display: Increase eval/entry delay for DCN35
X-Git-Tag: v6.9-rc1~126^2~22^2~21
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7f6f92b1036f44a961b78240f5a4c3b630e589fc;p=thirdparty%2Fkernel%2Flinux.git

drm/amd/display: Increase eval/entry delay for DCN35

[Why]
To match firmware measurements and avoid hanging when accessing HW
that's in idle.

[How]
Increase the delays to what we've measured.

Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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 5f7cf01abef95..d74e5c9e00aee 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
@@ -781,8 +781,8 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.disable_z10 = false,
 	.ignore_pg = true,
 	.psp_disabled_wa = true,
-	.ips2_eval_delay_us = 200,
-	.ips2_entry_delay_us = 400,
+	.ips2_eval_delay_us = 1650,
+	.ips2_entry_delay_us = 800,
 	.static_screen_wait_frames = 2,
 };