drm/amd/display: determine dp link encoding format from link settings

[how]
Implement a function that determines link encoding format
based on the link settings passed in.

Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 5 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 fcfde2e04292..1948cd9427d7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -98,6 +98,11 @@ enum dc_dp_training_pattern {
 	DP_TRAINING_PATTERN_VIDEOIDLE,
 };
 
+enum dp_link_encoding {
+	DP_UNKNOWN_ENCODING = 0,
+	DP_8b_10b_ENCODING = 1,
+};
+
 struct dc_link_settings {
 	enum dc_lane_count lane_count;
 	enum dc_link_rate link_rate;