[PATCH] omap3: beagle: Use GPTIMERi 1 for clockevents
premi at ti.com
Mon Jun 27 00:47:25 EDT 2011
> -----Original Message-----
> From: Paul Walmsley [mailto:paul at pwsan.com]
> Sent: Sunday, June 26, 2011 4:17 AM
> To: Koen Kooi; Premi, Sanjeev
> Cc: linux-omap at vger.kernel.org List; linux-arm-kernel
> Subject: RE: [PATCH] omap3: beagle: Use GPTIMERi 1 for clockevents
> On Sun, 26 Jun 2011, Premi, Sanjeev wrote:
> > [sp] I didn't include a reason - because the problem may not
> > be reproducible on the public trees.
> > During tests performed in internal development trees, the
> > BogoMIPS calculations @ 1GHz wouldn't go beyond "830-850"
> > range. While there was no such inconsistency on OMAP3EVM.
> There are some other reasons to avoid GPTIMER12 when
> possible, which you
> should probably put in the patch description. The most
> important, in my
> view, is that the clock source for GPTIMER12 is much less
> than the clock sources for GPTIMER1. So using GPTIMER12 can
> result in
> major time skew over a fairly short interval.
[sp] Thanks for details. I will include in next rev.
> I've been meaning to send a patch like this for some time, so
> I'm happy to
> see this fixed.
> - Paul
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