diff options
| author | Martin Leung <martin.leung@amd.com> | 2020-02-13 15:40:06 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-03-05 00:28:42 -0500 |
| commit | 834a9a9f04c7088dce82812b9c34b36faa043e41 (patch) | |
| tree | 1fde995ac30e7e325b9c5c3fa4b7642d361f6496 | |
| parent | 022b651816316e207f815f9ea0689388c8b77100 (diff) | |
drm/amd/display: Link training TPS1 workaround add back in dpcd
[Why]
Previously implemented early_cr_pattern we mistook dp_hw_link_settings
for a redundant call of dpcd_set_link_settings
[How]
revert the changes to dpcd_set_link_settings calls for this workaround.
Do not need to revert the entire change since it only affects patched
case
Signed-off-by: Martin Leung <martin.leung@amd.com>
Reviewed-by: David Galiffi <David.Galiffi@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 93127bc90f3c..5aa3de9644ea 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -1446,11 +1446,11 @@ enum link_training_result dc_link_dp_perform_link_training( &link->preferred_training_settings, <_settings); - /* 1. set link rate, lane count and spread. */ if (link->ctx->dc->work_arounds.lt_early_cr_pattern) start_clock_recovery_pattern_early(link, <_settings, DPRX); - else - dpcd_set_link_settings(link, <_settings); + + /* 1. set link rate, lane count and spread. */ + dpcd_set_link_settings(link, <_settings); if (link->preferred_training_settings.fec_enable != NULL) fec_enable = *link->preferred_training_settings.fec_enable; @@ -1669,11 +1669,11 @@ enum link_training_result dc_link_dp_sync_lt_attempt( dp_set_panel_mode(link, panel_mode); /* Attempt to train with given link training settings */ - /* Set link rate, lane count and spread. */ if (link->ctx->dc->work_arounds.lt_early_cr_pattern) start_clock_recovery_pattern_early(link, <_settings, DPRX); - else - dpcd_set_link_settings(link, <_settings); + + /* Set link rate, lane count and spread. */ + dpcd_set_link_settings(link, <_settings); /* 2. perform link training (set link training done * to false is done as well) |