Re: [PATCH] GPIO button wth wakeup attribute is supposed to wake the system up
From: Rafael J. Wysocki
Date: Thu Jul 10 2014 - 07:09:00 EST
On Thursday, July 10, 2014 10:27:46 AM Li, Aubrey wrote:
> On 2014/7/9 20:45, Rafael J. Wysocki wrote:
> > On Tuesday, July 08, 2014 05:54:35 PM Dmitry Torokhov wrote:
> >> On Wed, Jul 09, 2014 at 02:59:33AM +0200, Rafael J. Wysocki wrote:
> >>> On Tuesday, July 08, 2014 05:15:06 PM Dmitry Torokhov wrote:
> >>>> On Wed, Jul 09, 2014 at 01:06:07AM +0200, Rafael J. Wysocki wrote:
> > [cut]
> >>>> When device driver marks IRQ as a wakeup source I believe it is prepared
> >>>> to handle it (or it would shut it off explicitly).
> >>> I can agree with that.
> >>> Are you suggesting that __disable_irq() should check irq_data for
> >>> IRQD_WAKEUP_STATE and skip the IRQ (in the 'suspend' case) if that is set?
> >> Yes, something like that.
> > OK
> Many thanks to you both for the discussion.
> > Aubrey, can you please check if the appended patch helps on the T100?
> I verified this patch on T100, it works as expected, freeze can be waken
> up by reverting my patch and applying this one.
> Is this a final solution?
I hope so. I'll resend it with a proper changelog later today.
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