From c25e2d1f8ff403fdb7a82a025ae492d167bbdb99 Mon Sep 17 00:00:00 2001 From: Wenjing Liu Date: Mon, 21 Aug 2017 16:43:08 -0400 Subject: [PATCH] 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 Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- 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 3a5abd92036a..23d8b614e0fd 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; -- 2.45.2