Re: [PATCH v10 4/4] rtc: ds1307: add frequency_test_enable sysfs attribute to check tick on m41txx

From: Andy Shevchenko
Date: Wed Jul 18 2018 - 12:27:00 EST


On Wed, Jul 18, 2018 at 5:09 PM, Giulio Benetti
<giulio.benetti@xxxxxxxxxxxxxxxx> wrote:
> On m41txx you can enable open-drain OUT pin to check if offset is ok.
> Enabling OUT pin with frequency_test_enable attribute, OUT pin will tick
> 512 times faster than 1s tick base.
>
> Enable or Disable FT bit on CONTROL register if freq_test is 1 or 0.

Taking into consideration the amount of patches per hour you need to
slow down a bit.

--
With Best Regards,
Andy Shevchenko