diff --git a/include/drivers/arm/gicv3.h b/include/drivers/arm/gicv3.h
index f2a53712e..5f265c6e4 100644
--- a/include/drivers/arm/gicv3.h
+++ b/include/drivers/arm/gicv3.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -402,7 +402,7 @@ void gicv3_disable_interrupt(unsigned int id, unsigned int proc_num);
 void gicv3_set_interrupt_priority(unsigned int id, unsigned int proc_num,
 		unsigned int priority);
 void gicv3_set_interrupt_type(unsigned int id, unsigned int proc_num,
-		unsigned int group);
+		unsigned int type);
 void gicv3_raise_secure_g0_sgi(int sgi_num, u_register_t target);
 void gicv3_set_spi_routing(unsigned int id, unsigned int irm,
 		u_register_t mpidr);
diff --git a/include/drivers/arm/tzc400.h b/include/drivers/arm/tzc400.h
index 038a3baac..7f354f828 100644
--- a/include/drivers/arm/tzc400.h
+++ b/include/drivers/arm/tzc400.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -118,7 +118,7 @@ void tzc400_configure_region(unsigned int filters,
 			  unsigned long long region_base,
 			  unsigned long long region_top,
 			  tzc_region_attributes_t sec_attr,
-			  unsigned int ns_device_access);
+			  unsigned int nsaid_permissions);
 void tzc400_set_action(tzc_action_t action);
 void tzc400_enable_filters(void);
 void tzc400_disable_filters(void);
diff --git a/include/drivers/io/io_storage.h b/include/drivers/io/io_storage.h
index 50907ff70..485ed8c0f 100644
--- a/include/drivers/io/io_storage.h
+++ b/include/drivers/io/io_storage.h
@@ -70,7 +70,7 @@ typedef struct io_block_spec {
 /* Open a connection to a device */
 int io_dev_open(const struct io_dev_connector *dev_con,
 		const uintptr_t dev_spec,
-		uintptr_t *dev_handle);
+		uintptr_t *handle);
 
 
 /* Initialise a device explicitly - to permit lazy initialisation or
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index b2c7bd276..66efe450d 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -125,7 +125,7 @@ int arm_validate_ns_entrypoint(uintptr_t entrypoint);
 void arm_system_pwr_domain_save(void);
 void arm_system_pwr_domain_resume(void);
 void arm_program_trusted_mailbox(uintptr_t address);
-int arm_psci_read_mem_protect(int *val);
+int arm_psci_read_mem_protect(int *enabled);
 int arm_nor_psci_write_mem_protect(int val);
 void arm_nor_psci_do_mem_protect(void);
 int arm_psci_mem_protect_chk(uintptr_t base, u_register_t length);
diff --git a/plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.h b/plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.h
index f5f21788c..6b314af14 100644
--- a/plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.h
+++ b/plat/arm/board/fvp/drivers/pwrc/fvp_pwrc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -40,13 +40,13 @@
 /*******************************************************************************
  * Function & variable prototypes
  ******************************************************************************/
-void fvp_pwrc_write_pcoffr(u_register_t);
-void fvp_pwrc_write_ppoffr(u_register_t);
-void fvp_pwrc_write_pponr(u_register_t);
-void fvp_pwrc_set_wen(u_register_t);
-void fvp_pwrc_clr_wen(u_register_t);
-unsigned int fvp_pwrc_read_psysr(u_register_t);
-unsigned int fvp_pwrc_get_cpu_wkr(u_register_t);
+void fvp_pwrc_write_pcoffr(u_register_t mpidr);
+void fvp_pwrc_write_ppoffr(u_register_t mpidr);
+void fvp_pwrc_write_pponr(u_register_t mpidr);
+void fvp_pwrc_set_wen(u_register_t mpidr);
+void fvp_pwrc_clr_wen(u_register_t mpidr);
+unsigned int fvp_pwrc_read_psysr(u_register_t mpidr);
+unsigned int fvp_pwrc_get_cpu_wkr(u_register_t mpidr);
 
 #endif /*__ASSEMBLY__*/
 
diff --git a/plat/arm/board/fvp/fvp_pm.c b/plat/arm/board/fvp/fvp_pm.c
index 72845843d..1454587b1 100644
--- a/plat/arm/board/fvp/fvp_pm.c
+++ b/plat/arm/board/fvp/fvp_pm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -74,10 +74,10 @@ static void fvp_cluster_pwrdwn_common(void)
  * support SYSTEM_SUSPEND and it is `faked` in firmware. Hence, for wake up
  * from `fake` system suspend the GIC must not be powered off.
  */
-void arm_gicv3_distif_pre_save(unsigned int proc_num)
+void arm_gicv3_distif_pre_save(unsigned int rdist_proc_num)
 {}
 
-void arm_gicv3_distif_post_restore(unsigned int proc_num)
+void arm_gicv3_distif_post_restore(unsigned int rdist_proc_num)
 {}
 
 static void fvp_power_domain_on_finish_common(const psci_power_state_t *target_state)