diff options
| author | Josip Pavic <Josip.Pavic@amd.com> | 2019-02-05 19:27:38 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-03-05 15:09:33 -0500 |
| commit | 8628d02f60d4a568d02fc12a26273a55f7718ec0 (patch) | |
| tree | fb524f542175363f3142b27c8e83875e901050fc /drivers/gpu/drm/amd/display/dc/dc_dp_types.h | |
| parent | 33e0a44583281a9951117e62260532e5e0ba166d (diff) | |
drm/amd/display: optionally optimize edp link rate based on timing
[Why]
eDP v1.4 allows panels to report link rates other than RBR/HBR/HBR2, that
may be more optimal for the panel's timing. Power can be saved by using
a link rate closer to the required bandwidth of the panel's timing.
[How]
Scan the table of reported link rates from the panel, and select the
minimum link rate that satisfies the bandwidth requirements of the panel's
timing. Include a flag to make the feature optional.
Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@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_dp_types.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h index d4eab33c453b..ec403cd8b834 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h @@ -94,6 +94,8 @@ struct dc_link_settings { enum dc_lane_count lane_count; enum dc_link_rate link_rate; enum dc_link_spread link_spread; + bool use_link_rate_set; + uint8_t link_rate_set; }; struct dc_lane_settings { |