From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Currently we claim to use TPS7 when using TPS4. That is just
confusing, so let's fix the debug print.
And while we're touching this let's add the customary
encoder id/name as well.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 26 ++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 5ac182357fc9..eba97b1f5839 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4353,17 +4353,33 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp)
intel_dp->set_signal_levels(intel_dp);
}
+static char dp_training_pattern_name(u8 train_pat)
+{
+ switch (train_pat) {
+ case DP_TRAINING_PATTERN_1:
+ case DP_TRAINING_PATTERN_2:
+ case DP_TRAINING_PATTERN_3:
+ return '0' + train_pat;
+ case DP_TRAINING_PATTERN_4:
+ return '4';
+ default:
+ return '?';
+ }
+}
+
void
intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
u8 dp_train_pat)
{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
- u8 train_pat_mask = drm_dp_training_pattern_mask(intel_dp->dpcd);
+ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ u8 train_pat = dp_train_pat & drm_dp_training_pattern_mask(intel_dp->dpcd);
- if (dp_train_pat & train_pat_mask)
+ if (train_pat)
drm_dbg_kms(&dev_priv->drm,
- "Using DP training pattern TPS%d\n",
- dp_train_pat & train_pat_mask);
+ "[ENCODER:%d:%s] Using DP training pattern TPS%c\n",
+ encoder->base.base.id, encoder->base.name,
+ dp_training_pattern_name(train_pat));
intel_dp->set_link_train(intel_dp, dp_train_pat);
}
--
2.26.2
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