On Tue, Oct 29, 2019 at 05:44:36PM +0100, Ulf Hansson wrote: > In case we have succeeded to attach a CPU to its PM domain, let's deploy > runtime PM support for the corresponding attached device, to allow the CPU > to be powered-managed accordingly. > > To set the triggering point for when runtime PM reference counting should > be done, let's store the index of deepest idle state for the CPU in the per > CPU struct. Then use this index to compare the selected idle state index > when entering idle, as to understand whether runtime PM reference counting > is needed or not. > > Note that, from the hierarchical point view, there may be good reasons to > do runtime PM reference counting even on shallower idle states, but at this > point this isn't supported, mainly due to limitations set by the generic PM > domain. > Looks much better now with psci_enter_domain_state split as separate. -- Regards, Sudeep
