linux-kernel - Re: [PATCH 2/2] clocksource: arm_arch_timer: add boot and suspend sched

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Date:	Fri, 19 Apr 2013 15:46:01 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Rob Herring <robherring2@...il.com>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"arm@...nel.org" <arm@...nel.org>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	Russell King <linux@....linux.org.uk>,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Will Deacon <Will.Deacon@....com>,
	Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: [PATCH 2/2] clocksource: arm_arch_timer: add boot and suspend
 sched_clock offset

On Thu, Apr 18, 2013 at 08:30:10PM +0100, Rob Herring wrote:
> From: Rob Herring <rob.herring@...xeda.com>
> 
> Commit 023796b (ARM: arch_timer: use full 64-bit counter for sched_clock)
> fails to ensure sched_clock always starts at time 0 and counting is
> suspended during suspend. arm64 sched_clock support also has the same
> issues. This fixes all architected timer users by maintaining an initial
> offset which is updated on resume.
> 
> Signed-off-by: Rob Herring <rob.herring@...xeda.com>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: John Stultz <john.stultz@...aro.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: Stephen Boyd <sboyd@...eaurora.org>

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@....com>
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