1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/cpuidle/cpuidle.h b/drivers/cpuidle/cpuidle.h
index d8a3ccce8281..76e7f696ad8c 100644
--- a/drivers/cpuidle/cpuidle.h
+++ b/drivers/cpuidle/cpuidle.h
@@ -32,4 +32,34 @@ extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device);
 extern int cpuidle_add_sysfs(struct device *dev);
 extern void cpuidle_remove_sysfs(struct device *dev);
 
+#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
+bool cpuidle_state_is_coupled(struct cpuidle_device *dev,
+                struct cpuidle_driver *drv, int state);
+int cpuidle_enter_state_coupled(struct cpuidle_device *dev,
+                struct cpuidle_driver *drv, int next_state);
+int cpuidle_coupled_register_device(struct cpuidle_device *dev);
+void cpuidle_coupled_unregister_device(struct cpuidle_device *dev);
+#else
+static inline bool cpuidle_state_is_coupled(struct cpuidle_device *dev,
+                struct cpuidle_driver *drv, int state)
+{
+        return false;
+}
+
+static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev,
+                struct cpuidle_driver *drv, int next_state)
+{
+        return -1;
+}
+
+static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev)
+{
+        return 0;
+}
+
+static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev)
+{
+}
+#endif
+
 #endif /* __DRIVER_CPUIDLE_H */