| Supporting multiple CPU idle levels in kernel | |
| cpuidle drivers | |
| cpuidle driver hooks into the cpuidle infrastructure and handles the | |
| architecture/platform dependent part of CPU idle states. Driver | |
| provides the platform idle state detection capability and also | |
| has mechanisms in place to support actual entry-exit into CPU idle states. | |
| cpuidle driver initializes the cpuidle_device structure for each CPU device | |
| and registers with cpuidle using cpuidle_register_device. | |
| It can also support the dynamic changes (like battery <-> AC), by using | |
| cpuidle_pause_and_lock, cpuidle_disable_device and cpuidle_enable_device, | |
| cpuidle_resume_and_unlock. | |
| Interfaces: | |
| extern int cpuidle_register_driver(struct cpuidle_driver *drv); | |
| 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); | |
| 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); |