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SubjectRe: [PATCH v2 3/3] timekeeping: Add CONFIG_HAS_PERSISTENT_CLOCK option
On 01/22/2013 11:44 AM, Jason Gunthorpe wrote:
> On Tue, Jan 15, 2013 at 11:50:18AM -0800, John Stultz wrote:
>> 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 <>
>>> Suggested-by: John Stultz <>
>>> Signed-off-by: Feng Tang <>
>> Applied. I also added a dependency for Jason's CONFIG_RTC_SYSTOHC.
> Sort of an ugly config name, since I gather ARM should always set this
> to 'n'...
(Sigh. I got this seemingly microseconds after I sent the pull request :)

So yea, fair point, there could be some confusion. But
ONLY_PERSISTENT_CLOCK isn't quite right either, more like

Hrm. Let me think on it for a bit, and feel free to suggest further


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