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From a31eac00bbfff1b922b685a9d863e354fadab935 Mon Sep 17 00:00:00 2001
From: Wenjing Liu <Wenjing.Liu@amd.com>
Date: Mon, 21 Aug 2017 16:43:08 -0400
Subject: [PATCH 2312/4131] drm/amd/display: retry LT on failing LT in
automated request
[Description]
Link training is not retried in automated link training request.
In case link training is occasionally failing, there is not way to retry
so the requested lane settings will not set.
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index 3a5abd9..23d8b61 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -299,10 +299,11 @@ void dp_retrain_link_dp_test(struct dc_link *link,
dp_receiver_power_ctrl(link, true);
- dc_link_dp_perform_link_training(
+ perform_link_training_with_retries(
link,
link_setting,
- skip_video_pattern);
+ skip_video_pattern,
+ LINK_TRAINING_ATTEMPTS);
link->cur_link_settings = *link_setting;
--
2.7.4
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