diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index be53e36499b867153b5537ff7d6168b9a5bbb84b..8c8070ee26d756db50d26eca2a2ff5a6eeb4e515 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4494,6 +4494,8 @@ static bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 
 	if (HAS_PCH_IBX(dev_priv->dev)) {
 		switch (port->port) {
+		case PORT_A:
+			return true;
 		case PORT_B:
 			bit = SDE_PORTB_HOTPLUG;
 			break;
@@ -4504,10 +4506,13 @@ static bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 			bit = SDE_PORTD_HOTPLUG;
 			break;
 		default:
-			return true;
+			MISSING_CASE(port->port);
+			return false;
 		}
 	} else {
 		switch (port->port) {
+		case PORT_A:
+			return true;
 		case PORT_B:
 			bit = SDE_PORTB_HOTPLUG_CPT;
 			break;
@@ -4518,7 +4523,8 @@ static bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 			bit = SDE_PORTD_HOTPLUG_CPT;
 			break;
 		default:
-			return true;
+			MISSING_CASE(port->port);
+			return false;
 		}
 	}