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 5d549ac4de1c..ded246bbf232 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -56,6 +56,8 @@ lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \ } while (0) +#define MAX_SEQ_TRAIN_FAILURES 2 + static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp) { memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps)); @@ -1124,6 +1126,7 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp, void intel_dp_stop_link_train(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(intel_dp); struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; intel_dp->link_trained = true; @@ -1138,6 +1141,13 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp, } intel_hpd_unblock(encoder); + + if (!display->hotplug.ignore_long_hpd && + intel_dp->link.seq_train_failures < MAX_SEQ_TRAIN_FAILURES) { + int delay_ms = intel_dp->link.seq_train_failures ? 0 : 2000; + + intel_encoder_link_check_queue_work(encoder, delay_ms); + } } static bool @@ -1642,7 +1652,6 @@ void intel_dp_start_link_train(struct intel_atomic_state *state, lt_dbg(intel_dp, DP_PHY_DPRX, "Forcing link training failure\n"); } else if (passed) { intel_dp->link.seq_train_failures = 0; - intel_encoder_link_check_queue_work(encoder, 2000); return; } @@ -1665,10 +1674,8 @@ void intel_dp_start_link_train(struct intel_atomic_state *state, return; } - if (intel_dp->link.seq_train_failures < 2) { - intel_encoder_link_check_queue_work(encoder, 0); + if (intel_dp->link.seq_train_failures < MAX_SEQ_TRAIN_FAILURES) return; - } if (intel_dp_schedule_fallback_link_training(state, intel_dp, crtc_state)) return;