drm/amd/display: Add logging when DP link training Clock recovery is …

…Successful Log when Clock recovery is successful, as part of DP link training process. Cc: Aurabindo Pillai <[email protected]> Cc: Fangzhi Zuo <[email protected]> Signed-off-by: Srinivasan Shanmugam <[email protected]> Reviewed-by: Aurabindo Pillai <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
niw · Apr 14, 2023 · 88c7ad9 · 88c7ad9
1 parent 6a929fe
commit 88c7ad9
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c
@@ -225,8 +225,10 @@ enum link_training_result perform_8b_10b_clock_recovery_sequence(
 				offset);
 
 		/* 5. check CR done*/
-		if (dp_is_cr_done(lane_count, dpcd_lane_status))
+		if (dp_is_cr_done(lane_count, dpcd_lane_status)) {
+			DC_LOG_HW_LINK_TRAINING("%s: Clock recovery OK\n", __func__);
 			return LINK_TRAINING_SUCCESS;
+		}
 
 		/* 6. max VS reached*/
 		if ((link_dp_get_encoding_format(&lt_settings->link_settings) ==

diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_dpia.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_dpia.c
@@ -401,6 +401,7 @@ static enum link_training_result dpia_training_cr_non_transparent(
 
 		/* Check if clock recovery successful. */
 		if (dp_is_cr_done(lane_count, dpcd_lane_status)) {
+			DC_LOG_HW_LINK_TRAINING("%s: Clock recovery OK\n", __func__);
 			result = LINK_TRAINING_SUCCESS;
 			break;
 		}
@@ -508,6 +509,7 @@ static enum link_training_result dpia_training_cr_transparent(
 
 		/* Check if clock recovery successful. */
 		if (dp_is_cr_done(lane_count, dpcd_lane_status)) {
+			DC_LOG_HW_LINK_TRAINING("%s: Clock recovery OK\n", __func__);
 			result = LINK_TRAINING_SUCCESS;
 			break;
 		}