diff --git a/plat/intel/soc/common/soc/socfpga_mailbox.c b/plat/intel/soc/common/soc/socfpga_mailbox.c
index aec94af..eba0399 100644
--- a/plat/intel/soc/common/soc/socfpga_mailbox.c
+++ b/plat/intel/soc/common/soc/socfpga_mailbox.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Intel Corporation. All rights reserved.
+ * Copyright (c) 2020-2022, Intel Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -107,9 +107,7 @@
 		}
 	}
 
-	if (!is_doorbell_triggered) {
-		mmio_write_32(MBOX_OFFSET + MBOX_DOORBELL_TO_SDM, 1U);
-	}
+	mmio_write_32(MBOX_OFFSET + MBOX_DOORBELL_TO_SDM, 1U);
 
 	return MBOX_RET_OK;