diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index 4f56a370102d..ff74f64eb970 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -223,6 +223,8 @@ static int __intel_cx0_read_once(struct intel_encoder *encoder,
 		return -ETIMEDOUT;
 	}
 
+	intel_clear_response_ready_flag(encoder, lane);
+
 	intel_de_write(display, XELPDP_PORT_M2P_MSGBUS_CTL(display, port, lane),
 		       XELPDP_PORT_M2P_TRANSACTION_PENDING |
 		       XELPDP_PORT_M2P_COMMAND_READ |
@@ -294,6 +296,8 @@ static int __intel_cx0_write_once(struct intel_encoder *encoder,
 		return -ETIMEDOUT;
 	}
 
+	intel_clear_response_ready_flag(encoder, lane);
+
 	intel_de_write(display, XELPDP_PORT_M2P_MSGBUS_CTL(display, port, lane),
 		       XELPDP_PORT_M2P_TRANSACTION_PENDING |
 		       (committed ? XELPDP_PORT_M2P_COMMAND_WRITE_COMMITTED :