diff --git a/plat/st/common/include/stm32mp_shared_resources.h b/plat/st/common/include/stm32mp_shared_resources.h
index b148666..2205936 100644
--- a/plat/st/common/include/stm32mp_shared_resources.h
+++ b/plat/st/common/include/stm32mp_shared_resources.h
@@ -9,13 +9,22 @@
 
 #include <stdbool.h>
 
+#ifdef STM32MP_SHARED_RESOURCES
+enum stm32mp_shres;
+
 /* Return true if @clock_id is shared by secure and non-secure worlds */
 bool stm32mp_nsec_can_access_clock(unsigned long clock_id);
 
 /* Return true if and only if @reset_id relates to a non-secure peripheral */
 bool stm32mp_nsec_can_access_reset(unsigned int reset_id);
 
+/* Register a shared resource assigned to the secure world */
+void stm32mp_register_secure_periph(enum stm32mp_shres id);
+
+/* Register a shared resource assigned to the non-secure world */
+void stm32mp_register_non_secure_periph(enum stm32mp_shres id);
+
 /* Consolidate peripheral states and lock against new peripheral registering */
 void stm32mp_lock_periph_registering(void);
-
+#endif /* STM32MP_SHARED_RESOURCES */
 #endif /* STM32MP_SHARED_RESOURCES_H */