[PATCH] ARM: OMAP2+: Get rid of custom OMAP_32K_TIMER_HZ

Tony Lindgren tony at atomide.com
Fri Feb 1 17:52:02 EST 2013


* Arnd Bergmann <arnd at arndb.de> [130131 07:41]:
> On Thursday 31 January 2013 21:02:00 Santosh Shilimkar wrote:
> > The timekeeping doesn't depend on HZ value in presence of fine grained
> > clocksource and hence there should not be any time drift because of HZ
> > value which was chosen to be divisor of 32768.
> > 
> > OMAP has been using HZ = 128 value to avoid any time drift issues
> > because of 32768 HZ clock. But with various measurements performed
> > with HZ = 100, no time drift is observed and it also proves the
> > point about HZ not having impact on time keeping on OMAP.
> > 
> > Very informative thread on this topic is here:
> >         https://lkml.org/lkml/2013/1/29/435
> > 
> > Special thanks to John Stulz, Arnd Bergmann and Russell King for their
> > valuable suggestions.
> > 
> > Cc: Arnd Bergmann <arnd at arndb.de>
> > Cc: Russell King <linux at arm.linux.org.uk>
> > Cc: John Stultz <john.stultz at linaro.org>
> > Cc: Tony Lindgren <tony at atomide.com>
> 
> Acked-by: Arnd Bergmann <arnd at arndb.de>
> 
> Thanks so much for looking into this!

Great thanks for checking it Santosh! Applying into
omap-for-v3.9/soc.

Tony



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