drm/amd/display: Update FIXED_VS retimer training pattern delay

[WHY]
Needed for PHY patterns as well to perform electrical compliance.
Also need to increase wait time from 30ms to 50ms to resolve very
intermittent UHBR20 link training failures.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c
index 5302d2c9c76077ef5b71ae0db667e28c99db1a8d..116ff37126e73fa0b10797f2d3169052d6664484 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c
@@ -168,9 +168,9 @@ static void set_hpo_fixed_vs_pe_retimer_dp_link_test_pattern(struct dc_link *lin
 
        link->dc->link_srv->dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_SET_SOURCE_PATTERN);
 
-       // Give retimer extra time to lock before updating DP_TRAINING_PATTERN_SET to TPS1
-       if (tp_params->dp_phy_pattern == DP_TEST_PATTERN_128b_132b_TPS1_TRAINING_MODE)
-               msleep(30);
+       // Give retimer extra time to lock before updating DP_TRAINING_PATTERN_SET to TPS1 or phy pattern
+       if (tp_params->dp_phy_pattern != DP_TEST_PATTERN_128b_132b_TPS2_TRAINING_MODE)
+               msleep(50);
 }
 
 static void set_hpo_fixed_vs_pe_retimer_dp_lane_settings(struct dc_link *link,