Add some more logging for DP link traning test pattern seqeunces
for better debugging.
Cc: Harry Wentland <harry.wentland@xxxxxxx>
Cc: Leo Li <sunpeng.li@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@xxxxxxx>
---
.../display/dc/link/protocols/link_dp_training.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
index 70fc0ddf2d7e..c22397d71da4 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
@@ -213,27 +213,43 @@ enum dpcd_training_patterns
switch (pattern) {
case DP_TRAINING_PATTERN_SEQUENCE_1:
dpcd_tr_pattern = DPCD_TRAINING_PATTERN_1;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS1 DP training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_TRAINING_PATTERN_SEQUENCE_2:
dpcd_tr_pattern = DPCD_TRAINING_PATTERN_2;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS2 DP training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_TRAINING_PATTERN_SEQUENCE_3:
dpcd_tr_pattern = DPCD_TRAINING_PATTERN_3;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS3 DP training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_TRAINING_PATTERN_SEQUENCE_4:
dpcd_tr_pattern = DPCD_TRAINING_PATTERN_4;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS4 DP training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_128b_132b_TPS1:
dpcd_tr_pattern = DPCD_128b_132b_TPS1;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS1 DP 128b/132b training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_128b_132b_TPS2:
dpcd_tr_pattern = DPCD_128b_132b_TPS2;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS2 DP 128b/132b training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_128b_132b_TPS2_CDS:
dpcd_tr_pattern = DPCD_128b_132b_TPS2_CDS;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using TPS2 CDS DP 128b/132b training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
case DP_TRAINING_PATTERN_VIDEOIDLE:
dpcd_tr_pattern = DPCD_TRAINING_PATTERN_VIDEOIDLE;
+ DC_LOG_HW_LINK_TRAINING("%s\n Using videoidle DP training pattern: %d\n",
+ __func__, dpcd_tr_pattern);
break;
default:
ASSERT(0);
--
2.25.1
