drm/amd/display: Add logging for DP link traning Test Pattern Seqeunces

Add some more logging for DP link traning test pattern seqeunces
for better debugging.

Cc: Fangzhi Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 2d067a4a8517d5da63b91af72a5c9ba277e63631..170f3383593018c73849ac08ecfff4da5079f9ee 100644 (file)
--- 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
@@ -212,27 +212,36 @@ enum dpcd_training_patterns
 
        switch (pattern) {
        case DP_TRAINING_PATTERN_SEQUENCE_1:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP training pattern TPS1\n", __func__);
                dpcd_tr_pattern = DPCD_TRAINING_PATTERN_1;
                break;
        case DP_TRAINING_PATTERN_SEQUENCE_2:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP training pattern TPS2\n", __func__);
                dpcd_tr_pattern = DPCD_TRAINING_PATTERN_2;
                break;
        case DP_TRAINING_PATTERN_SEQUENCE_3:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP training pattern TPS3\n", __func__);
                dpcd_tr_pattern = DPCD_TRAINING_PATTERN_3;
                break;
        case DP_TRAINING_PATTERN_SEQUENCE_4:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP training pattern TPS4\n", __func__);
                dpcd_tr_pattern = DPCD_TRAINING_PATTERN_4;
                break;
        case DP_128b_132b_TPS1:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP 128b/132b training pattern TPS1\n", __func__);
                dpcd_tr_pattern = DPCD_128b_132b_TPS1;
                break;
        case DP_128b_132b_TPS2:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP 128b/132b training pattern TPS2\n", __func__);
                dpcd_tr_pattern = DPCD_128b_132b_TPS2;
                break;
        case DP_128b_132b_TPS2_CDS:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP 128b/132b training pattern TPS2 CDS\n",
+                                       __func__);
                dpcd_tr_pattern = DPCD_128b_132b_TPS2_CDS;
                break;
        case DP_TRAINING_PATTERN_VIDEOIDLE:
+               DC_LOG_HW_LINK_TRAINING("%s: Using DP training pattern videoidle\n", __func__);
                dpcd_tr_pattern = DPCD_TRAINING_PATTERN_VIDEOIDLE;
                break;
        default: