From: Zeyu Fan <Zeyu.Fan@amd.com>
Date: Wed, 29 Mar 2017 17:21:56 -0400
Subject: drm/amd/display: Temporary disable PSR for HBR2 & HBR3
Git-commit: bddd696ddd437ce15d278b2a5318ef44d3c171cd
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Zeyu Fan <Zeyu.Fan@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2165,7 +2165,8 @@ static void retrieve_link_cap(struct cor
 	CONN_DATA_DETECT(link, dpcd_data, sizeof(dpcd_data), "Rx Caps: ");
 
 	/* TODO: Confirm if need retrieve_psr_link_cap */
-	retrieve_psr_link_cap(link, link->edp_revision);
+	if (link->public.reported_link_cap.link_rate < LINK_RATE_HIGH2)
+		retrieve_psr_link_cap(link, link->edp_revision);
 }
 
 void detect_dp_sink_caps(struct core_link *link)