diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 153342cf5898..9a4a51e79fa1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1913,6 +1913,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp, int link_rate, uint8_t lane_count, bool link_mst) { + intel_dp->link_trained = false; intel_dp->link_rate = link_rate; intel_dp->lane_count = lane_count; intel_dp->link_mst = link_mst; @@ -2761,6 +2762,8 @@ static void intel_disable_dp(struct intel_encoder *encoder, { struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); + intel_dp->link_trained = false; + if (old_crtc_state->has_audio) intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state); @@ -4277,10 +4280,11 @@ intel_dp_needs_link_retrain(struct intel_dp *intel_dp) { u8 link_status[DP_LINK_STATUS_SIZE]; - if (!intel_dp_get_link_status(intel_dp, link_status)) { - DRM_ERROR("Failed to get link status\n"); + if (!intel_dp->link_trained) + return false; + + if (!intel_dp_get_link_status(intel_dp, link_status)) return false; - } /* * Validate the cached values of intel_dp->link_rate and |