From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: OMAP2+: Get rid of custom OMAP_32K_TIMER_HZ
Date: Thu, 31 Jan 2013 16:37:28 +0100 [thread overview]
Message-ID: <1524396.4DaQLsSWOZ@wuerfel> (raw)
In-Reply-To: <1359646320-9086-1-git-send-email-santosh.shilimkar@ti.com>
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@arndb.de>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: John Stultz <john.stultz@linaro.org>
> Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Thanks so much for looking into this!
next prev parent reply other threads:[~2013-01-31 15:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-31 15:32 [PATCH] ARM: OMAP2+: Get rid of custom OMAP_32K_TIMER_HZ Santosh Shilimkar
2013-01-31 15:37 ` Arnd Bergmann [this message]
2013-02-01 22:52 ` Tony Lindgren
2013-02-03 12:50 ` Igor Grinberg
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1524396.4DaQLsSWOZ@wuerfel \
--to=arnd@arndb.de \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).