[PATCH 6/7] drm/i915/mst: Reject FEC+MST on ICL

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

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

Reviewed-by: Uma Shankar <uma.shankar at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 819f3234de03..a11bc4fd3d65 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1418,7 +1418,8 @@ 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;
-- 
2.43.2