Re: [PATCH 3/4] ARM: nomadik: add dynamic irq flag to the timer

[Vincent Guittot]

On 1 March 2013 02:13, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> On Tue, Feb 26, 2013 at 11:17 PM, Daniel Lezcano
> <daniel.lezcano@xxxxxxxxxx> wrote:
>
>> Add the dynamic irq affinity feature to the timer clock device.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
>
> Looks reasonable to me, sadly I do not fully grasp the patch set,
> Vincent+Rickard can you have a look at this?

ux500 is able to trig the wake up on one CPU and let the other one in
WFI. This patch will minimize the spurious wake up of CPU0 when CPU1
is the target CPU of the broadcast timer. One main consequence is that
we will not uselessly execute all the deferrable and newly idle
activities on the CPU0 .

you can add my reviewed-by if you want

Vincent

>
> Yours,
> Linus Walleij
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