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SubjectRe: [PATCH 4/4] rtc: ds1307: add frequency-test property to check calibration on m41txx
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Hi Rob,

Il 08/05/2018 19:44, Rob Herring ha scritto:
> On Tue, May 8, 2018 at 9:56 AM, Giulio Benetti
> <giulio.benetti@micronovasrl.com> wrote:
>> On m41txx you can enable open-drain OUT pin to check if calibration is ok.
>> Enabling OUT pin with frequency-test bool property, OUT pin will tick
>> 512 times faster than 1s tick base.
>>
>> Enable FT bit on CONTROL register if calibration is active.
>
> A DT is (or should be) a pretty static thing, so I don't think this
> belongs. A kernel command line option (via module params) or a
> sysfs/debugfs file would make more sense IMO.

Totally right, it's very useful having it accessible via sysfs.
Already changed and just submitted V2 patchset.
Thanks

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Giulio Benetti
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