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Groups > linux.kernel > #1244419
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending |
| Date | 2015-10-12 09:00 +0200 |
| Message-ID | <qiFfs-83W-19@gated-at.bofh.it> (permalink) |
| References | <qiA65-Dv-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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@atmel.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
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[PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending Wenyou Yang <wenyou.yang@atmel.com> - 2015-10-12 03:30 +0200
Re: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2015-10-12 09:00 +0200
RE: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending "Yang, Wenyou" <Wenyou.Yang@atmel.com> - 2015-10-12 09:50 +0200
Re: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2015-10-12 10:00 +0200
RE: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending "Yang, Wenyou" <Wenyou.Yang@atmel.com> - 2015-10-12 10:00 +0200
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