cpuidle_enable_device
ret = cpuidle_enable_device(dev);
cpuidle_enable_device(dev);
cpuidle_enable_device(dev);
cpuidle_enable_device(dev);
EXPORT_SYMBOL_GPL(cpuidle_enable_device);
ret = cpuidle_enable_device(dev);
cpuidle_enable_device(dev);
extern int cpuidle_enable_device(struct cpuidle_device *dev);