diff --git a/drivers/gpu/drm/i915/intel_combo_phy.c b/drivers/gpu/drm/i915/intel_combo_phy.c
index 98213cc58736..841708da5a56 100644
--- a/drivers/gpu/drm/i915/intel_combo_phy.c
+++ b/drivers/gpu/drm/i915/intel_combo_phy.c
@@ -198,6 +198,10 @@ static bool icl_combo_phy_verify_state(struct drm_i915_private *dev_priv,
 
 	ret = cnl_verify_procmon_ref_values(dev_priv, port);
 
+	if (port == PORT_A)
+		ret &= check_phy_reg(dev_priv, port, ICL_PORT_COMP_DW8(port),
+				     IREFGEN, IREFGEN);
+
 	ret &= check_phy_reg(dev_priv, port, ICL_PORT_CL_DW5(port),
 			     CL_POWER_DOWN_ENABLE, CL_POWER_DOWN_ENABLE);