On Monday 22 June 2009, Arjan van de Ven wrote: > On Mon, 22 Jun 2009 15:20:43 +0900 > Magnus Damm <magnus.damm@xxxxxxxxx> wrote: > > > On Sat, Jun 20, 2009 at 11:30 PM, Alan > > Stern<stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > Some more thoughts... > > > > > > Magnus, you might have some insights here. It occurred to me that > > > some devices can switch power levels very quickly, and the drivers > > > might therefore want the runtime suspend and resume methods to be > > > called as soon as possible, even in interrupt context. > > > > I'd like to call pm_request_suspend() from interrupt context. I don't > > there are some really strong reasons to at least be able to call the > resume function from an interrupt handler.... shared interrupts are one > of them. Yes. But that requires your hardware to be able to wake up fast enough, so I think we can introduce pm_runtime_resume_atomic() and pm_runtime_suspend_atomic() to be used with the devices that can do that, as proposed by Alan. Surely not all devices can do it, though. Best, Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
