From 3b6900cd3a1f082c2ac86b761343404bbcb0255f Mon Sep 17 00:00:00 2001
From: Evgenii Krasnikov <Evgenii.Krasnikov@amd.com>
Date: Wed, 20 Apr 2022 16:04:33 -0400
Subject: Revert "drm/amd/display: Reset cached PSR parameters after hibernate"
Git-commit: eaacf13b33eca727349575c7a0edc39379c9d47e
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

This reverts commit d2069326d26c7de78e77a060fb6e6d0d21c35dbd.

Commit d2069326d26c ("drm/amd/display: Reset cached PSR parameters after hibernate")
causes a system hang when game resolution is changed. Revert it.

Reviewed-by: Jayendran Ramani <Jayendran.Ramani@amd.com>
Reviewed-by: Harry Vanzylldejong <Harry.Vanzylldejong@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Evgenii Krasnikov <Evgenii.Krasnikov@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 1eddf2785153..3d13ee32a3db 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -3317,14 +3317,9 @@ bool dc_link_setup_psr(struct dc_link *link,
 	 */
 	psr_context->frame_delay = 0;
 
-	if (psr) {
+	if (psr)
 		link->psr_settings.psr_feature_enabled = psr->funcs->psr_copy_settings(psr,
 			link, psr_context, panel_inst);
-		if (link->psr_settings.psr_feature_enabled) {
-			link->psr_settings.psr_power_opt = 0;
-			link->psr_settings.psr_allow_active = 0;
-		}
-	}
 	else
 		link->psr_settings.psr_feature_enabled = dmcu->funcs->setup_psr(dmcu, link, psr_context);
 
-- 
2.38.1