Commits
Anson Huang committed fc325e614c6
ENGR00273073-1 arm: add cpu idle notification callback Some modules may need to know cpu idle status and take actions before and after cpu idle, so we can add notification callback when enter/exit cpu idle, then modules only need to register this notification callback, everytime cpu enter/exit idle, the callback chain will be executed. Currently only cpufreq interactive governor use this notification, as it wants to save power, the timers of interactive governor are only enabled when cpu is not in idle. Signed-off-by: Anson Huang <b20788@freescale.com>