diff --git a/plat/mediatek/mt8516/plat_pm.c b/plat/mediatek/mt8516/plat_pm.c
index 2cd21d1..16a16b5 100644
--- a/plat/mediatek/mt8516/plat_pm.c
+++ b/plat/mediatek/mt8516/plat_pm.c
@@ -276,7 +276,7 @@
 		cluster_id, cpu_id, mmio_read_32(rv));
 
 //	spm_hotplug_on(mpidr);
-	spmc_cpu_corex_onoff(plat_core_pos_by_mpidr(mpidr), STA_POWER_ON, MODE_SPMC_HW);
+	rc = spmc_cpu_corex_onoff(plat_core_pos_by_mpidr(mpidr), STA_POWER_ON, MODE_SPMC_HW);
 	return rc;
 }
 
@@ -296,6 +296,7 @@
 {
 	unsigned long mpidr = read_mpidr_el1();
 
+	spmc_cpu_corex_onoff(plat_core_pos_by_mpidr(mpidr), STA_POWER_DOWN, MODE_AUTO_SHUT_OFF);
 	/* Prevent interrupts from spuriously waking up this cpu */
 	gicv2_cpuif_disable();