* jeffy <jeffy.chen@xxxxxxxxxxxxxx> [170818 11:05]:
> On 08/19/2017 01:01 AM, Brian Norris wrote:
> > BTW, in another context, Tony suggested we might need to fix up the IRQ flags
> > like this:
> >
> > int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq)
> > {
> > ...
> > err = request_threaded_irq(irq, NULL, handle_threaded_wake_irq,
> > - IRQF_ONESHOT, dev_name(dev), wirq);
> > + IRQF_ONESHOT | irq_get_trigger_type(irq), dev_name(dev), wirq);
> >
> > But IIUC, that's not actually necessary, because __setup_irq()
> > automatically configures the trigger type if the driver didn't request
> > one explicitly.
>
> actually this would not work...irq_get_trigger_type would return zero due to
> a bug which we have a patch for it already:
>
> 9908207 New [tip:irq/urgent] genirq: Restore trigger settings in
> irq_modify_status()
Thanks for that information. So it seems we can leave out the
irq_get_trigger_type() here then? Might be worth checking
that it really does get populated though :)
> BTW, using dev_name for the name of this wake irq seems not very
> convenient...maybe add a ":wake" suffix?
Good idea, will take a look.
Regards,
Tony
