[PATCH] ARM: sunxi: stop timer from ticking before enabling interrupts
Maxime Ripard
maxime.ripard at free-electrons.com
Sat Nov 30 09:15:58 EST 2013
Hi Marc,
On Sat, Nov 30, 2013 at 12:53:15PM +0000, Marc Zyngier wrote:
> The sun4i timer can still be ticking when we enable the interrupt.
> If another timer is actually used (A7 architected timer, for example),
> odds are that the interrupt will eventually fire with the event_handler
> pointer being NULL.
>
> The obvious fix it to stop the timer before registering the interrupt.
>
> Observed and tested on sun7i (cubietruck).
>
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
You can add my Acked-by, but you should rather send this to Daniel
Lezcano, which is the clocksource/clockevent maintainer.
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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