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Message-ID: <20151012065323.GA3558@piout.net> Date: Mon, 12 Oct 2015 08:53:23 +0200 From: Alexandre Belloni <alexandre.belloni@...e-electrons.com> To: Wenyou Yang <wenyou.yang@...el.com> Cc: Alessandro Zummo <a.zummo@...ertech.it>, Nicolas Ferre <nicolas.ferre@...el.com>, Ludovic Desroches <ludovic.desroches@...el.com>, rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending Hi Wenyou, On 12/10/2015 at 09:17:57 +0800, Wenyou Yang wrote : > This patch is to clear the RTC alarm status flag prior to suspending > to avoid the erroneous wake-up activity. > Is this a new issue appearing with the sama5d2 or was it present from the beginning? > Signed-off-by: Wenyou Yang <wenyou.yang@...el.com> > --- > > drivers/rtc/rtc-at91rm9200.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c > index cb62e21..b60fd47 100644 > --- a/drivers/rtc/rtc-at91rm9200.c > +++ b/drivers/rtc/rtc-at91rm9200.c > @@ -495,6 +495,8 @@ static int at91_rtc_suspend(struct device *dev) > /* this IRQ is shared with DBGU and other hardware which isn't > * necessarily doing PM like we are... > */ > + at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); > + > at91_rtc_imr = at91_rtc_read_imr() > & (AT91_RTC_ALARM|AT91_RTC_SECEV); > if (at91_rtc_imr) { > -- > 1.7.9.5 > -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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