diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_link_training.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_link_training.h | 3 |
3 files changed, 14 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f6eec5c206d8..8a26307c4896 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5685,7 +5685,7 @@ static void intel_dp_process_phy_request(struct intel_dp *intel_dp, intel_dp_autotest_phy_ddi_disable(intel_dp, crtc_state); - intel_dp_set_signal_levels(intel_dp, crtc_state); + intel_dp_set_signal_levels(intel_dp, crtc_state, DP_PHY_DPRX); intel_dp_phy_pattern_update(intel_dp, crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 7876e781f698..d8c6d7054d11 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -335,21 +335,24 @@ intel_dp_set_link_train(struct intel_dp *intel_dp, } void intel_dp_set_signal_levels(struct intel_dp *intel_dp, - const struct intel_crtc_state *crtc_state) + const struct intel_crtc_state *crtc_state, + enum drm_dp_phy dp_phy) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); u8 train_set = intel_dp->train_set[0]; + char phy_name[10]; - drm_dbg_kms(&dev_priv->drm, "Using vswing level %d%s\n", + drm_dbg_kms(&dev_priv->drm, "Using vswing level %d%s, pre-emphasis level %d%s, at %s\n", train_set & DP_TRAIN_VOLTAGE_SWING_MASK, - train_set & DP_TRAIN_MAX_SWING_REACHED ? " (max)" : ""); - drm_dbg_kms(&dev_priv->drm, "Using pre-emphasis level %d%s\n", + train_set & DP_TRAIN_MAX_SWING_REACHED ? " (max)" : "", (train_set & DP_TRAIN_PRE_EMPHASIS_MASK) >> DP_TRAIN_PRE_EMPHASIS_SHIFT, train_set & DP_TRAIN_MAX_PRE_EMPHASIS_REACHED ? - " (max)" : ""); + " (max)" : "", + intel_dp_phy_name(dp_phy, phy_name, sizeof(phy_name))); - intel_dp->set_signal_levels(intel_dp, crtc_state); + if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy)) + intel_dp->set_signal_levels(intel_dp, crtc_state); } static bool @@ -359,7 +362,7 @@ intel_dp_reset_link_train(struct intel_dp *intel_dp, u8 dp_train_pat) { memset(intel_dp->train_set, 0, sizeof(intel_dp->train_set)); - intel_dp_set_signal_levels(intel_dp, crtc_state); + intel_dp_set_signal_levels(intel_dp, crtc_state, dp_phy); return intel_dp_set_link_train(intel_dp, crtc_state, dp_phy, dp_train_pat); } @@ -373,7 +376,7 @@ intel_dp_update_link_train(struct intel_dp *intel_dp, DP_TRAINING_LANE0_SET_PHY_REPEATER(dp_phy); int ret; - intel_dp_set_signal_levels(intel_dp, crtc_state); + intel_dp_set_signal_levels(intel_dp, crtc_state, dp_phy); ret = drm_dp_dpcd_write(&intel_dp->aux, reg, intel_dp->train_set, crtc_state->lane_count); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.h b/drivers/gpu/drm/i915/display/intel_dp_link_training.h index c3110c032bc2..6a1f76bd8c75 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.h +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.h @@ -18,7 +18,8 @@ void intel_dp_get_adjust_train(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy, const u8 link_status[DP_LINK_STATUS_SIZE]); void intel_dp_set_signal_levels(struct intel_dp *intel_dp, - const struct intel_crtc_state *crtc_state); + const struct intel_crtc_state *crtc_state, + enum drm_dp_phy dp_phy); void intel_dp_start_link_train(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state); void intel_dp_stop_link_train(struct intel_dp *intel_dp, |