Commit 855e828c authored by Imre Deak's avatar Imre Deak
Browse files

drm/i915/dp: Write the source OUI during connector detection 



The DP sink's capabilities, like DSC, may depend on the source OUI
written to the sink. On eDP this OUI value could have been reset before
the detection started if the panel power on it got disabled. Make sure
the OUI is re-written at the beginning of detection in this case, before
the sink capabilities are read out.

Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241025160259.3088727-8-imre.deak@intel.com
parent 4fbdc4a5

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

+2 −0
Original line number Diff line number Diff line
@@ -5667,6 +5667,8 @@ intel_dp_detect(struct drm_connector *connector, 
		goto out_unset_edid;

	}



	intel_dp_init_source_oui(intel_dp);



	ret = intel_dp_tunnel_detect(intel_dp, ctx);

	if (ret == -EDEADLK) {

		status = ret;