On Tue, 8 Dec 2020 at 18:26, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote: > > On Mon, Nov 30, 2020 at 11:51 PM Lina Iyer <ilina@xxxxxxxxxxxxxx> wrote: > > > > Hi, > > > > The v5[1] of the series brought out some interesting discussions. The > > most important being is it worth adding the additional expense to all PM > > domains even if no wakeup pattern is available. It seems like > > maintaining a domain specific flag that the governor could check is a > > generic enough option. That should disable additional overhead for > > domains that do not need this feature. > > > > Ulf suggested that we could allow wakeups only if any of the domain idle > > state specifies a residency. However, we don't want to check for next > > wakeup everytime the domain enters idle just because the domain > > specifies an idle state with residency. This is also not desired. > > > > Also, if the domain checks for next wakeup, should the parent domains of > > the domain also check for next wakeup? And when do we set that up? These > > are questions that we don't know the answers yet. So, let's enable the > > domain governor only if the domain sets up the flag or when the device > > in the domain specifies the next wakeup. > > > > The previous post of the series explaining why this is a useful feature > > is v5[1]. Please let me know what you think. > > Ulf had comments on the previous versions, so waiting for him to > respond here, thanks! Yes, I will have a look, but please allow me some more time - it's a busy period for me. Kind regards Uffe
