diff options
| author | abdoulaye berthe <[email protected]> | 2020-02-18 17:05:05 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-03-05 00:31:46 -0500 |
| commit | bcc5042a2209037da2784ac88d9e3dad6c6ed915 (patch) | |
| tree | 291660ed5c5649bb2148f9fd8ed92b95fc8806c3 | |
| parent | ccb6af1e25830e5601b6beacc698390f0245316f (diff) | |
drm/amd/display: set lttpr mode before link settings
[Why]
Some lttpr devices do not work properly when lttpr mode is configured
after link settings.
[How]
Move lttpr configuration before lane settings.
Signed-off-by: abdoulaye berthe <[email protected]>
Reviewed-by: Wenjing Liu <[email protected]>
Acked-by: Rodrigo Siqueira <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 6 |
1 files changed, 4 insertions, 2 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 bf5406eaf7b7..fc3664dd5e88 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 @@ -1446,6 +1446,10 @@ enum link_training_result dc_link_dp_perform_link_training( &link->preferred_training_settings, <_settings); + /* Configure lttpr mode */ + if (!link->is_lttpr_mode_transparent) + configure_lttpr_mode(link); + if (link->ctx->dc->work_arounds.lt_early_cr_pattern) start_clock_recovery_pattern_early(link, <_settings, DPRX); @@ -1460,8 +1464,6 @@ enum link_training_result dc_link_dp_perform_link_training( dp_set_fec_ready(link, fec_enable); if (!link->is_lttpr_mode_transparent) { - /* Configure lttpr mode */ - configure_lttpr_mode(link); /* 2. perform link training (set link training done * to false is done as well) |