diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 55215cc..36ca972 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -52,6 +52,7 @@
 #define CPUIDLE_FLAG_SHALLOW	(0x20) /* low latency, minimal savings */
 #define CPUIDLE_FLAG_BALANCED	(0x40) /* medium latency, moderate savings */
 #define CPUIDLE_FLAG_DEEP	(0x80) /* high latency, large savings */
+#define CPUIDLE_FLAG_IGNORE	(0x100) /* ignore during this idle period */
 
 #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
 
@@ -84,6 +85,7 @@
 struct cpuidle_device {
 	unsigned int		registered:1;
 	unsigned int		enabled:1;
+	unsigned int		power_specified:1;
 	unsigned int		cpu;
 
 	int			last_residency;
@@ -97,6 +99,8 @@
 	struct completion	kobj_unregister;
 	void			*governor_data;
 	struct cpuidle_state	*safe_state;
+
+	int (*prepare)		(struct cpuidle_device *dev);
 };
 
 DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices);