Unverified Commit 99f85508 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Rodrigo Vivi
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drm/i915/mst: Reject FEC+MST on ICL 



ICL supposedly doesn't support FEC on MST. Reject it.

Cc: stable@vger.kernel.org
Fixes: d51f25eb ("drm/i915: Add DSC support to MST path")
Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402135148.23011-7-ville.syrjala@linux.intel.com


(cherry picked from commit b648ce2a)
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 51bc6339

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

+2 −1
Original line number Diff line number Diff line
@@ -1422,7 +1422,8 @@ static bool intel_dp_source_supports_fec(struct intel_dp *intel_dp, 
	if (DISPLAY_VER(dev_priv) >= 12)

		return true;



	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A)

	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A &&

	    !intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST))

		return true;



	return false;