[rtc-linux] Re: [PATCH] rtc: ds1307: ensure that any pending alarm is cleared before a new alarm is enabled

[Alexandre Belloni <alexandre.belloni@free-electrons.com>]

On 10/04/2016 at 13:23:05 +0200, Nicolas Boullis wrote :
> If a previously-set alarm was disabled and then triggered, it may still=
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> be pending when a new alarm is configured.
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> Then, if the alarm is enabled before the pending alarm is cleared, then=
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> an interrupt is immediately raised.
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> Unfortunately, when the alarm is cleared and enabled during the same I=E6=
=B6=8E=20
> block write, the chip (at least the DS1339 I have) considers that the=20
> alarm is enabled before it is cleared, and raises an interrupt.
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> This patch ensures that the pending alarm is cleared before the alarm is=
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> enabled.
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> Signed-off-by: Nicolas Boullis <nboullis@debian.org>
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Applied, thanks.

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Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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