diff options
| author | Michael Strauss <michael.strauss@amd.com> | 2024-05-09 15:38:05 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-06-14 16:17:14 -0400 |
| commit | 396477d9508e3c3cb95c9b6eb76346769efd961a (patch) | |
| tree | 82a38b7cbf18b9624389a0d7ed91efb2056fa960 | |
| parent | 9a29c4adb0997be6ba3dd92dfba14ea75a8c6ce4 (diff) | |
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>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_fixed_vs_pe_retimer_dp.c | 6 |
1 files changed, 3 insertions, 3 deletions
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 5302d2c9c760..116ff37126e7 100644 --- 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, |