linux-kernel - Re: [PATCH v2 3/3] timekeeping: Add CONFIG_HAS_PERSISTENT

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Message-ID: <50F5B2FA.6030006@linaro.org>
Date:	Tue, 15 Jan 2013 11:50:18 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	Feng Tang <feng.tang@...el.com>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	linux-kernel@...r.kernel.org,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
Subject: Re: [PATCH v2 3/3] timekeeping: Add CONFIG_HAS_PERSISTENT_CLOCK option

On 01/15/2013 08:09 AM, Feng Tang wrote:
> Make the persistent clock check a kernel config option, so that some
> platform can explicitely select it, also make CONFIG_RTC_HCTOSYS depends
> on its non-existence, which could prevent the persistent clock and RTC
> code from doing similar thing twice during system's init/suspend/resume
> phases.
>
> If the CONFIG_HAS_PERSISTENT_CLOCK=n, then no change happens for kernel
> which still does the persistent clock check in timekeeping_init().
>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Suggested-by: John Stultz <john.stultz@...aro.org>
> Signed-off-by: Feng Tang <feng.tang@...el.com>

Applied. I also added a dependency for Jason's CONFIG_RTC_SYSTOHC.

thanks
-john

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