It's better not to use global governor, as modifying one device will cause all devices' governor to be modified.
Signed-off-by: guanyi3 <guanyi3@xiaomi.com>
This commit introduces a devfreq framework to manage device frequency
scaling. The framework includes the following features:
1.devfreq governor
- provide governor ops, including init, start, stop, exit
- default governor, performance & powersave
- customized governor, device can provide governor when register
2.runtime register and unregister
- device can runtime register & unregister, search by name
3.suspend and resume
- suspend and resume frequency scaling
4.notify
- register & unregister notifier callback, notify frequency changes
5.qos support
- simplified QoS, manage multiple freq range request
- including init, add/remove/update request, get value
Signed-off-by: guanyi <guanyi@xiaomi.com>
