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drm/amd/display: check for repeater when setting aux_rd_interval. 

[Why]
When training with repeater the aux read interval must be set to
repeater specific aux_red_interval. This value is always 100us for CR.

[How]
Check for repeater when setting the aux_rd_interval in channel
equalization.
Use the right offset in the aux_rd_interval array

Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: George Shen <George.Shen@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
abdoulaye berthe 2019-11-12 11:07:24 -05:00 committed by Alex Deucher
parent 9a35b016b9
commit 5fd21b394c
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
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@ -906,10 +906,10 @@ static enum link_training_result perform_channel_equalization_sequence(
/* 3. wait for receiver to lock-on*/
wait_time_microsec = lt_settings->eq_pattern_time;
if (!link->is_lttpr_mode_transparent)
if (is_repeater(link, offset))
wait_time_microsec =
translate_training_aux_read_interval(
link->dpcd_caps.lttpr_caps.aux_rd_interval[offset]);
link->dpcd_caps.lttpr_caps.aux_rd_interval[offset - 1]);
wait_for_training_aux_rd_interval(
link,