Hello, Thank you for working on that!
On 29/03/2021 00:02:28+0300, Kirill Kapranov wrote: > This patch series enables a Distributed Digital Calibration function for > the RTC of the family. This feature allows to improve the RTC accuracy by > means of compensation an XT oscillator drift. To learn more, see: > AB08XX Series Ultra Low Power RTC IC User's Guide > https://abracon.com/realtimeclock/AB08XX-Application-Manual.pdf > > The patches 1 and 2 enable SQW output, that is necessary for subsequent > measurement and computation. However, this feature may be enabled and used > independently, as is. > Please use the common clock framework for this part. You will need a dummy userspace user for this to work but I know Stephen is open to that as we discussed that use case multiple times already. > The patches 3 and 4 enable the XT calibration feature per se. The SQW > output must be enabled for usage of this feature. Please use the .set_offset and .get_offset rtc_ops for this part. -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
