cpuidle: Add common time keeping and irq enabling

Make necessary changes to implement time keeping and irq enabling
in the core cpuidle code.  This will allow the removal of these
functionalities from various platform cpuidle implementations whose
timekeeping and irq enabling follows the form in this common code.

Signed-off-by: Robert Lee <rob.lee@linaro.org>
Tested-by: Jean Pihet <j-pihet@ti.com>
Tested-by: Amit Daniel <amit.kachhap@linaro.org>
Tested-by: Robert Lee <rob.lee@linaro.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 712abcc205ae..927db28a2a4c 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -15,6 +15,7 @@
 #include <linux/list.h>
 #include <linux/kobject.h>
 #include <linux/completion.h>
+#include <linux/hrtimer.h>
 
 #define CPUIDLE_STATE_MAX       8
 #define CPUIDLE_NAME_LEN        16
@@ -122,6 +123,8 @@ struct cpuidle_driver {
         struct module           *owner;
 
         unsigned int            power_specified:1;
+        /* set to 1 to use the core cpuidle time keeping (for all states). */
+        unsigned int            en_core_tk_irqen:1;
         struct cpuidle_state    states[CPUIDLE_STATE_MAX];
         int                     state_count;
         int                     safe_state_index;
@@ -140,7 +143,10 @@ extern void cpuidle_pause_and_lock(void);
 extern void cpuidle_resume_and_unlock(void);
 extern int cpuidle_enable_device(struct cpuidle_device *dev);
 extern void cpuidle_disable_device(struct cpuidle_device *dev);
-
+extern int cpuidle_wrap_enter(struct cpuidle_device *dev,
+                                struct cpuidle_driver *drv, int index,
+                                int (*enter)(struct cpuidle_device *dev,
+                                        struct cpuidle_driver *drv, int index));
 #else
 static inline void disable_cpuidle(void) { }
 static inline int cpuidle_idle_call(void) { return -ENODEV; }
@@ -157,6 +163,11 @@ static inline void cpuidle_resume_and_unlock(void) { }
 static inline int cpuidle_enable_device(struct cpuidle_device *dev)
 {return -ENODEV; }
 static inline void cpuidle_disable_device(struct cpuidle_device *dev) { }
+static inline int cpuidle_wrap_enter(struct cpuidle_device *dev,
+                                struct cpuidle_driver *drv, int index,
+                                int (*enter)(struct cpuidle_device *dev,
+                                        struct cpuidle_driver *drv, int index))
+{ return -ENODEV; }
 
 #endif