drm/i915: Rename DP link training functions

The link training functions had confusing names. The start function
actually does the clock recovery phase of the link training, and the
complete function does the channel equalization. So call them that
instead. Also, every call to intel_dp_start_link_train() was followed
by a call to intel_dp_complete_link_train(), so add a new start
function that calls clock_recory and channel_equalization.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 13 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 19cbc2ef542c..8d34ca7b287a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2604,7 +2604,6 @@ static void intel_enable_dp(struct intel_encoder *encoder)
 
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 	intel_dp_start_link_train(intel_dp);
-	intel_dp_complete_link_train(intel_dp);
 	intel_dp_stop_link_train(intel_dp);
 
 	if (crtc->config->has_audio) {
@@ -3691,8 +3690,8 @@ static void intel_dp_set_idle_link_train(struct intel_dp *intel_dp)
 }
 
 /* Enable corresponding port and start training pattern 1 */
-void
-intel_dp_start_link_train(struct intel_dp *intel_dp)
+static void
+intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 {
 	struct drm_encoder *encoder = &dp_to_dig_port(intel_dp)->base.base;
 	struct drm_device *dev = encoder->dev;
@@ -3805,8 +3804,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
 	intel_dp->DP = DP;
 }
 
-void
-intel_dp_complete_link_train(struct intel_dp *intel_dp)
+static void
+intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_device *dev = dig_port->base.base.dev;
@@ -3859,7 +3858,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
 		if (!drm_dp_clock_recovery_ok(link_status,
 					      intel_dp->lane_count)) {
 			intel_dp->train_set_valid = false;
-			intel_dp_start_link_train(intel_dp);
+			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
 						DP_LINK_SCRAMBLING_DISABLE);
@@ -3876,7 +3875,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
 		/* Try 5 times, then try clock recovery if that fails */
 		if (tries > 5) {
 			intel_dp->train_set_valid = false;
-			intel_dp_start_link_train(intel_dp);
+			intel_dp_link_training_clock_recovery(intel_dp);
 			intel_dp_set_link_train(intel_dp, &DP,
 						training_pattern |
 						DP_LINK_SCRAMBLING_DISABLE);
@@ -3909,6 +3908,13 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp)
 				DP_TRAINING_PATTERN_DISABLE);
 }
 
+void
+intel_dp_start_link_train(struct intel_dp *intel_dp)
+{
+	intel_dp_link_training_clock_recovery(intel_dp);
+	intel_dp_link_training_channel_equalization(intel_dp);
+}
+
 static void
 intel_dp_link_down(struct intel_dp *intel_dp)
 {
@@ -4377,7 +4383,6 @@ go_again:
 			    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 				DRM_DEBUG_KMS("channel EQ not ok, retraining\n");
 				intel_dp_start_link_train(intel_dp);
-				intel_dp_complete_link_train(intel_dp);
 				intel_dp_stop_link_train(intel_dp);
 			}
 
@@ -4468,7 +4473,6 @@ intel_dp_check_link_status(struct intel_dp *intel_dp)
 		DRM_DEBUG_KMS("%s: channel EQ not ok, retraining\n",
 			      intel_encoder->base.name);
 		intel_dp_start_link_train(intel_dp);
-		intel_dp_complete_link_train(intel_dp);
 		intel_dp_stop_link_train(intel_dp);
 	}
 }