diff --git a/arch/arm/mach-shmobile/cpuidle.c b/arch/arm/mach-shmobile/cpuidle.c
index 9e050268cde4..068f9ca8715f 100644
--- a/arch/arm/mach-shmobile/cpuidle.c
+++ b/arch/arm/mach-shmobile/cpuidle.c
@@ -36,12 +36,12 @@ static struct cpuidle_driver shmobile_cpuidle_default_driver = {
 
 static struct cpuidle_driver *cpuidle_drv = &shmobile_cpuidle_default_driver;
 
-void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
+void __init shmobile_cpuidle_set_driver(struct cpuidle_driver *drv)
 {
 	cpuidle_drv = drv;
 }
 
-int shmobile_cpuidle_init(void)
+int __init shmobile_cpuidle_init(void)
 {
 	struct cpuidle_device *dev = &shmobile_cpuidle_dev;
 
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c
index a0826a48dd08..f6b14cac0076 100644
--- a/arch/arm/mach-shmobile/pm-sh7372.c
+++ b/arch/arm/mach-shmobile/pm-sh7372.c
@@ -450,12 +450,12 @@ static struct cpuidle_driver sh7372_cpuidle_driver = {
 	},
 };
 
-static void sh7372_cpuidle_init(void)
+static void __init sh7372_cpuidle_init(void)
 {
 	shmobile_cpuidle_set_driver(&sh7372_cpuidle_driver);
 }
 #else
-static void sh7372_cpuidle_init(void) {}
+static void __init sh7372_cpuidle_init(void) {}
 #endif
 
 #ifdef CONFIG_SUSPEND