Commit 63720a56 authored by Ankit Nautiyal's avatar Ankit Nautiyal Committed by Tvrtko Ursulin
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drm/i915/dp: Reset frl trained flag before restarting FRL training 



For cases where DP has HDMI2.1 sink and FRL Link issues are detected,
reset the flag to state FRL trained status before restarting FRL
training.

Fixes: 9488a030 ("drm/i915: Add support for enabling link status and recovery")
Cc: Swati Sharma <swati2.sharma@intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com> (v2)
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221011063447.904649-2-ankit.k.nautiyal@intel.com


(cherry picked from commit 47e1a59e)
Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
parent 62c52eac

drivers/gpu/drm/i915/display/intel_dp.c

+2 −0
Original line number Diff line number Diff line
@@ -3957,6 +3957,8 @@ intel_dp_handle_hdmi_link_status_change(struct intel_dp *intel_dp) 


		drm_dp_pcon_hdmi_frl_link_error_count(&intel_dp->aux, &intel_dp->attached_connector->base);



		intel_dp->frl.is_trained = false;



		/* Restart FRL training or fall back to TMDS mode */

		intel_dp_check_frl_training(intel_dp);

	}