linux-kernel - Re: [PATCH v2] ARM: smp_twd: Reconfigure clockevents after cpufreq change

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Date:	Fri, 20 May 2011 23:50:45 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Colin Cross <ccross@...roid.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Rob Herring <robherring2@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ARM: smp_twd: Reconfigure clockevents after cpufreq change

On Fri, May 20, 2011 at 2:24 AM, Colin Cross <ccross@...roid.com> wrote:

> The localtimer's clock changes with the cpu clock.  After a
> cpufreq transition, update the clockevent's frequency and
> reprogram the next clock event.
>
> Adds a clock called "smp_twd" that is used to determine the
> twd frequency, which can also be used at init time to
> avoid calibrating the twd frequency.
>
> Clock changes are based on Rob Herring's work.
>
> Change-Id: I413b5cd07fb2b79bc9fad8b4bf257332d1da7bcd
> Signed-off-by: Colin Cross <ccross@...roid.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Santosh Shilimkar <santosh.shilimkar@...com>
> Cc: Rob Herring <robherring2@...il.com>
> Tested-by: Linus Walleij <linus.walleij@...aro.org>

OK Thomas can you take this in through the clock/timer
branch? Works fine for me and Colin and solves many problems
apart from making the code look neat.

Yours,
Linus Walleij
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