Messages in this thread | | | Date | Fri, 25 Jul 2008 14:49:46 -0700 | From | Andrew Morton <> | Subject | Re: [patch 2.6.26-git] pm selftest: rtc paranoia |
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On Fri, 25 Jul 2008 13:26:51 -0700 David Brownell <david-b@pacbell.net> wrote:
> From: David Brownell <dbrownell@users.sourceforge.net> > > Cope with a quirk of some RTCs (notably ACPI ones) which > aren't guaranteed to implement oneshot behavior when they > woke the system from sleeep: forcibly disable the alarm, > just in case. > > Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> > --- > kernel/power/main.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > --- a/kernel/power/main.c 2008-07-22 16:38:32.000000000 -0700 > +++ b/kernel/power/main.c 2008-07-22 16:39:15.000000000 -0700 > @@ -635,6 +635,13 @@ static void __init test_wakealarm(struct > } > if (status < 0) > printk(err_suspend, status); > + > + /* Some platforms can't detect that the alarm triggered the > + * wakeup, or (accordingly) disable it after it afterwards. > + * It's supposed to give oneshot behavior; cope. > + */ > + alm.enabled = false; > + rtc_set_alarm(rtc, &alm); > } > > static int __init has_wakealarm(struct device *dev, void *name_ptr)
I assume this fixes some reported bug? Any references?
Is this needed in 2.6.26.x? 2.6.25.x?
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