tree 76ea18bbfd9daf003dd6674bc78b252c07ad7e61
parent 42fa0e2a83260d73cd8ac70a623e3eea7196c352
author Marissa Wall <marissaw@google.com> 1504221995 -0700
committer Marissa Wall <marissaw@google.com> 1504540780 -0700

cpufreq/time_in_state: add time_in_state support

Get the time_in_state for all cpus by cluster. Add option to
compute the delta between two time_in_states. This can be used
in determining how much power the cpu used over a period of time.

Test: call cpufreq.get_time_in_state(clusters)
Change-Id: I173d269c486b476005563d3ffa4af29024b91a15