linux-kernel - Re: [PATCHv2 0/3] clocksource: add db8500 PRCMU timer

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Message-ID: <20110710141935.GA21414@n2100.arm.linux.org.uk>
Date:	Sun, 10 Jul 2011 15:19:35 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mattias Wallin <mattias.wallin@...ricsson.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCHv2 0/3] clocksource: add db8500 PRCMU timer

On Thu, Jun 02, 2011 at 10:46:22AM +0100, Russell King - ARM Linux wrote:
> On Thu, Jun 02, 2011 at 11:34:31AM +0200, Mattias Wallin wrote:
> > The Multi Timer Unit (MTU) is currently used as clocksource and sched_clk
> > for the u8500 machine. The MTU block loose power during cpuidle sleep states
> > so an alternate clocksource is needed and these patches adds the db8500 PRCMU
> > timer.
> 
> Why don't we just find a way of fixing sched_clock so that the value
> doesn't reset over a suspend/resume cycle?  IOW, lets fix the problem
> for _everyone_ rather than only fixing it for one platform at a time.
> 
> Could you try this patch to check whether sched_clock() behaves better
> across a suspend/resume cycle please?

So do I merge this patch?
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