[PATCH 3/5][RFC] cpuidle : add a pointer for cpuidle_state in the cpuidle_device

[Daniel Lezcano <daniel.lezcano-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>]

This patch adds a pointer to the cpuidle_state array in the cpuidle_device
structure. When the cpuidle_device is initialized, the pointer is assigned
from the driver's cpuidle states array.

Signed-off-by: Daniel Lezcano <daniel.lezcano-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
 drivers/cpuidle/cpuidle.c |    1 +
 include/linux/cpuidle.h   |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index d6a533e..42b1a8a 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -305,6 +305,7 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
 		return -EIO;
 	if (!dev->state_count)
 		dev->state_count = drv->state_count;
+	dev->states = drv->states;
 
 	if (dev->registered == 0) {
 		ret = __cpuidle_register_device(dev);
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 89dcd30..40a04a1 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -95,6 +95,7 @@ struct cpuidle_device {
 
 	int			last_residency;
 	int			state_count;
+	struct cpuidle_state    *states;
 	struct cpuidle_state_usage	states_usage[CPUIDLE_STATE_MAX];
 	struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
 
-- 
1.7.5.4