From: abdoulaye berthe <[email protected]> [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]> --- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 6 ++++-- 1 file 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) -- 2.25.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
