diff --git a/drivers/renesas/rcar/pwrc/pwrc.h b/drivers/renesas/rcar/pwrc/pwrc.h
index 3cdac69..d4d6fc4 100644
--- a/drivers/renesas/rcar/pwrc/pwrc.h
+++ b/drivers/renesas/rcar/pwrc/pwrc.h
@@ -44,6 +44,7 @@
 void rcar_pwrc_clusteroff(uint64_t mpidr);
 void rcar_pwrc_cpuoff(uint64_t mpidr);
 void rcar_pwrc_cpuon(uint64_t mpidr);
+int32_t rcar_pwrc_cpu_on_check(uint64_t mpidr);
 void rcar_pwrc_setup(void);
 
 uint32_t rcar_pwrc_get_cpu_wkr(uint64_t mpidr);