Hi Viresh, On 2/4/21 2:41 PM, Viresh Kumar wrote: > On 03-02-21, 17:23, Hsin-Yi Wang wrote: >> The devfreq passive governor scales the frequency of a "child" device based >> on the current frequency of a "parent" device (not parent/child in the >> sense of device hierarchy). As of today, the passive governor requires one >> of the following to work correctly: >> 1. The parent and child device have the same number of frequencies >> 2. The child device driver passes a mapping function to translate from >> parent frequency to child frequency. >> >> When (1) is not true, (2) is the only option right now. But often times, >> all that is required is a simple mapping from parent's frequency to child's >> frequency. >> >> Since OPPs already support pointing to other "required-opps", add support >> for using that to map from parent device frequency to child device >> frequency. That way, every child device driver doesn't have to implement a >> separate mapping function anytime (1) isn't true. > > So you guys aren't interested in dev_pm_opp_set_opp() but just the > translation of the required-OPPs ? > > I am fine with most of the stuff and I would like to take it via OPP > tree, hope that would be fine ?
I agree. Take these patches to OPP tree. -- Best Regards, Chanwoo Choi Samsung Electronics
