On Tuesday, March 03, 2015 04:35:40 PM Nicolas Ferre wrote: > Le 02/03/2015 10:18, Boris Brezillon a écrit : > > My apologies to those of you who already received this series, but I > > didn't increment the patch version and forgot some subsystem maintainers > > and MLs. > > > > Commit cab303be91dc47942bc25de33dc1140123540800 [1] introduced a WARN_ON > > test which triggers a WARNING backtrace on at91 platforms. > > While this WARN_ON is absolutely necessary to warn users that they should > > not mix request with and without IRQF_NO_SUSPEND flags on shared IRQs, > > there is no easy way to solve this issue on at91 platforms. > > > > The main reason is that the init timer is often using a shared irq line > > and thus request this irq with IRQF_NO_SUSPEND flag set, while other > > peripherals request the same irq line without this flag. > > > > This problem has recently been addressed by this patch [2] which adds > > a new IRQF_COND_SUSPEND flag, that authorize mixing IRQF_NO_SUSPEND and > > !IRQF_NO_SUSPEND as long as irq handlers setting IRQF_COND_SUSPEND > > can safely be called in suspended state. > > > > Doing this also implies taking care of system wakeup in devices handlers > > if they tag the IRQ line as a wakeup source. > > The first patch of this series exports the pm_system_wakeup symbol so > > that drivers can call pm_system_wakeup from their interrupt handler. > > > > This series then patches all at91 drivers that can have devices sharing > > their IRQ line with a timer. > > > > This series depends on [2]. > > I'm okay with all the patches: > Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx> > > As it seems easier to keep the whole series together, I'll let Rafael > take it. OK, I'll queue up the patches for the next PM pull request. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
