diff options
| author | David Galiffi <David.Galiffi@amd.com> | 2019-05-30 11:56:39 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 14:18:08 -0500 |
| commit | e0a6440a2961b1da3ea895b0bef082fc1a78e190 (patch) | |
| tree | 0c7d6c90afda809d4ff1100d78068fee376ad531 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | 93c25fbdc30a6058115e7a9f3fa161f5a26f7043 (diff) | |
drm/amd/display: Add ability to set preferred link training parameters.
[WHY]
To add support for OS requirement to set preferred link training
parameters.
[HOW]
Create new structure of dp link training overrides. During link training
processes, these values should be used instead of the default training
parameters.
Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 6f0b80111e58..d6ff5af70c71 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -83,6 +83,7 @@ struct dc_link { bool is_hpd_filter_disabled; bool dp_ss_off; bool link_state_valid; + bool aux_access_disabled; /* caps is the same as reported_link_cap. link_traing use * reported_link_cap. Will clean up. TODO @@ -92,6 +93,7 @@ struct dc_link { struct dc_link_settings cur_link_settings; struct dc_lane_settings cur_lane_setting; struct dc_link_settings preferred_link_setting; + struct dc_link_training_overrides preferred_training_settings; uint8_t ddc_hw_inst; @@ -217,6 +219,10 @@ void dc_link_dp_set_drive_settings( struct dc_link *link, struct link_training_settings *lt_settings); +bool dc_link_dp_perform_link_training_skip_aux( + struct dc_link *link, + const struct dc_link_settings *link_setting); + enum link_training_result dc_link_dp_perform_link_training( struct dc_link *link, const struct dc_link_settings *link_setting, @@ -251,6 +257,11 @@ void dc_link_perform_link_training(struct dc *dc, void dc_link_set_preferred_link_settings(struct dc *dc, struct dc_link_settings *link_setting, struct dc_link *link); +void dc_link_set_preferred_training_settings(struct dc *dc, + struct dc_link_settings *link_setting, + struct dc_link_training_overrides *lt_overrides, + struct dc_link *link, + bool skip_immediate_retrain); void dc_link_enable_hpd(const struct dc_link *link); void dc_link_disable_hpd(const struct dc_link *link); void dc_link_set_test_pattern(struct dc_link *link, |