diff --git a/plat/xilinx/versal/pm_service/pm_svc_main.c b/plat/xilinx/versal/pm_service/pm_svc_main.c
index 4b0f5e0..5be3002 100644
--- a/plat/xilinx/versal/pm_service/pm_svc_main.c
+++ b/plat/xilinx/versal/pm_service/pm_svc_main.c
@@ -146,7 +146,7 @@
 		if (ret == PM_RET_ERROR_NOTSUPPORTED)
 			return (uintptr_t)0;
 
-		SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
+		SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32U);
 	}
 
 	case PM_QUERY_DATA:
@@ -156,8 +156,8 @@
 		ret = pm_query_data(pm_arg[0], pm_arg[1], pm_arg[2],
 				      pm_arg[3], data, security_flag);
 
-		SMC_RET2(handle, (uint64_t)ret  | ((uint64_t)data[0] << 32U),
-				 (uint64_t)data[1] | ((uint64_t)data[2] << 32U));
+		SMC_RET2(handle, (uint64_t)ret | ((uint64_t)data[0] << 32U),
+			(uint64_t)data[1] | ((uint64_t)data[2] << 32U));
 	}
 
 	case PM_FEATURE_CHECK:
@@ -201,24 +201,24 @@
 	case PM_SELF_SUSPEND:
 		ret = pm_self_suspend(pm_arg[0], pm_arg[1], pm_arg[2],
 				      pm_arg[3], security_flag);
-		SMC_RET1(handle, (uint64_t)ret);
+		SMC_RET1(handle, (u_register_t)ret);
 
 	case PM_FORCE_POWERDOWN:
 		ret = pm_force_powerdown(pm_arg[0], pm_arg[1], security_flag);
-		SMC_RET1(handle, (uint64_t)ret);
+		SMC_RET1(handle, (u_register_t)ret);
 
 	case PM_REQ_SUSPEND:
 		ret = pm_req_suspend(pm_arg[0], pm_arg[1], pm_arg[2],
 				     pm_arg[3], security_flag);
-		SMC_RET1(handle, (uint64_t)ret);
+		SMC_RET1(handle, (u_register_t)ret);
 
 	case PM_ABORT_SUSPEND:
 		ret = pm_abort_suspend(pm_arg[0], security_flag);
-		SMC_RET1(handle, (uint64_t)ret);
+		SMC_RET1(handle, (u_register_t)ret);
 
 	case PM_SYSTEM_SHUTDOWN:
 		ret = pm_system_shutdown(pm_arg[0], pm_arg[1], security_flag);
-		SMC_RET1(handle, (uint64_t)ret);
+		SMC_RET1(handle, (u_register_t)ret);
 
 	default:
 		return (uintptr_t)0;