diff --git a/include/drivers/st/stm32mp1_clk.h b/include/drivers/st/stm32mp1_clk.h
index e2395bc..93ec1c5 100644
--- a/include/drivers/st/stm32mp1_clk.h
+++ b/include/drivers/st/stm32mp1_clk.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2022, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2018-2024, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -32,6 +32,8 @@
 void stm32mp1_clk_rcc_regs_lock(void);
 void stm32mp1_clk_rcc_regs_unlock(void);
 
+void stm32mp1_clk_mcuss_protect(bool enable);
+
 #ifdef STM32MP_SHARED_RESOURCES
 void stm32mp1_register_clock_parents_secure(unsigned long id);
 #endif