1 files changed, 10 insertions, 3 deletions

diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index dcf77fa826b5..1be416bbbb82 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -52,6 +52,8 @@ struct cpuidle_state {
 #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_FLAG_TLB_FLUSHED (0x200) /* tlb will be flushed */
 
 #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
 
@@ -84,6 +86,7 @@ struct cpuidle_state_kobj {
 struct cpuidle_device {
         unsigned int            registered:1;
         unsigned int            enabled:1;
+        unsigned int            power_specified:1;
         unsigned int            cpu;
 
         int                     last_residency;
@@ -97,6 +100,8 @@ struct cpuidle_device {
         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);
@@ -125,6 +130,7 @@ struct cpuidle_driver {
 #ifdef CONFIG_CPU_IDLE
 
 extern int cpuidle_register_driver(struct cpuidle_driver *drv);
+struct cpuidle_driver *cpuidle_get_driver(void);
 extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
 extern int cpuidle_register_device(struct cpuidle_device *dev);
 extern void cpuidle_unregister_device(struct cpuidle_device *dev);
@@ -137,16 +143,17 @@ extern void cpuidle_disable_device(struct cpuidle_device *dev);
 #else
 
 static inline int cpuidle_register_driver(struct cpuidle_driver *drv)
-{return 0;}
+{return -ENODEV; }
+static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; }
 static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { }
 static inline int cpuidle_register_device(struct cpuidle_device *dev)
-{return 0;}
+{return -ENODEV; }
 static inline void cpuidle_unregister_device(struct cpuidle_device *dev) { }
 
 static inline void cpuidle_pause_and_lock(void) { }
 static inline void cpuidle_resume_and_unlock(void) { }
 static inline int cpuidle_enable_device(struct cpuidle_device *dev)
-{return 0;}
+{return -ENODEV; }
 static inline void cpuidle_disable_device(struct cpuidle_device *dev) { }
 
 #endif