diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0833302baabc..5f54b0a9f597 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2961,6 +2961,7 @@ static void intel_dp_reset_link_params(struct intel_dp *intel_dp) { intel_dp->link.max_lane_count = intel_dp_max_common_lane_count(intel_dp); intel_dp->link.max_rate = intel_dp_max_common_rate(intel_dp); + intel_dp->link.seq_train_failures = 0; } /* Enable backlight PWM and backlight PP control. */ @@ -5075,6 +5076,9 @@ intel_dp_needs_link_retrain(struct intel_dp *intel_dp) intel_dp->lane_count)) return false; + if (intel_dp->link.seq_train_failures) + return true; + /* Retrain if link not ok */ return !intel_dp_link_ok(intel_dp, link_status); } |