Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...

[pandora-kernel.git] / drivers / gpu / drm / i915 / intel_dp.c

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1b727a5..368ed8e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1797,7 +1797,8 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                        if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0)
                                break;
                if (i == intel_dp->lane_count && voltage_tries == 5) {
-                       if (++loop_tries == 5) {
+                       ++loop_tries;
+                       if (loop_tries == 5) {
                                DRM_DEBUG_KMS("too many full retries, give up\n");
                                break;
                        }
@@ -1807,11 +1808,15 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
                }
 
                /* Check to see if we've tried the same voltage 5 times */
-               if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) != voltage) {
-                       voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
-                       voltage_tries = 0;
-               } else
+               if ((intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK) == voltage) {
                        ++voltage_tries;
+                       if (voltage_tries == 5) {
+                               DRM_DEBUG_KMS("too many voltage retries, give up\n");
+                               break;
+                       }
+               } else
+                       voltage_tries = 0;
+               voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
 
                /* Compute new intel_dp->train_set as requested by target */
                intel_get_adjust_train(intel_dp, link_status);