Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver
From: Daniel Walker <dwalker@mvista.com>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Kumar Gala <galak@kernel.crashing.org>, tglx@linutronix.de, mingo@elte.hu,
       linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
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Date: Fri, 18 May 2007 08:39:33 -0700
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On Fri, 2007-05-18 at 19:06 +0400, Sergei Shtylyov wrote:
> Daniel Walker wrote:
> 
> >>I haven't looked at all the new clock/timer code, is there any  
> >>utility in having support for more than one clock source?
> 
> > There is if the main clocksource has some issues where it can't be used.
> 
>     You mean, having more than one clocksource is *useful* in this case?

Yes.

>     Well, the decrementer frequency may change, at least in theory (if the bus 
> clock changes).

Does that happen very often?

Daniel

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