From: Srinivasan Shanmugam Date: Thu, 13 Apr 2023 19:50:18 +0000 (+0530) Subject: drm/amd/display: Add logging when DP link training Clock recovery is Successful X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=88c7ad91e378775a08f54b4a85068d51b5cf52f3;p=linux.git 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 Cc: Fangzhi Zuo Signed-off-by: Srinivasan Shanmugam Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Deucher --- 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 index 14b98e096d392..3889ebb2256bf 100644 --- 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(<_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 index ab4aafdb5e5c1..4f4e899e5c46d 100644 --- 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; }