On 09/13/2012 12:27 PM, Mike Turquette wrote:

Quoting Stephen Warren (2012-09-13 10:26:34)

quoted

On 09/13/2012 09:57 AM, Stephen Warren wrote:

quoted

On 09/13/2012 03:34 AM, Prashant Gaikwad wrote:

quoted

Clockevent's frequency is changed upon cpufreq change
notification. It fetches local timer's rate to update the
clockevent frequency. This patch adds local timer clock
for Tegra20.

Hmm. Off-list, I'd asked you to check whether this patch, and Mike's
twd/clk-notifier changes were OK for Tegra, and part of your reponse was:

Tegra20 (Ventana)
        Tegra's for-next (common clock) + smp_twd : Panic

Is that true? If so, I can't apply this patch...

Oh, perhaps you mean the warning below? That's exactly the issue that
Mike's patch was intended to solve, so it's not surprising that it'd be
seen as soon as we actually implement the smp_twd clock. If that's all,
then it seems OK to apply this.

Can you confirm that the problem goes away with this patch:
http://article.gmane.org/gmane.linux.ports.arm.kernel/187488/match=

Yes, it does.

That patch is what triggered the creation of this patch (since because
of it I noticed we didn't have the smp_twd clock in our driver).