On 29-07-17, 10:24, Ulf Hansson wrote: > Let's invent a new genpd flag, GENPD_FLAG_PERF_STATE! > > The creator of the genpd then needs to set this before calling > pm_genpd_init(). Similar as we are dealing with GENPD_FLAG_PM_CLK. > > The requirement for GENPD_FLAG_PERF_STATES, is to have the > ->get_performance_state() assigned. This shall be verified during > pm_genpd_init(). > > The pm_genpd_has_performance_state() then only need to return true, in > cases the device's genpd has GENPD_FLAG_PERF_STATE set - else false. > > Regarding ->set_performance_state(), let's just make it optional - and > when trying to set a new performance state, just walk the genpd > hierarchy, from bottom to up, then invoke the callback when it's > assigned.
Sounds good. -- viresh
