Hi,
I am currently developping a new RTC driver for the NXP PCF2131 chip.
This RTC is very similar in functionality to the PCF2127/29.
Basically it:
-supports two new control registers at offsets 4 and 5
-supports a new reset register
-supports 4 tamper detection functions instead of 1
-has no nvmem (like the PCF2129)
-has two output interrupt pins
Because of that, most of the register addresses are very different, although they still follow the same layout. For example, the tamper registers have a different base address, but the offsets are all the same.
I would like to modify the existing PCF2127 driver to add support for this new RTC, instead of simply copying (forking) the PCF2127 driver. I think that it would ease the maintenance in the long term.
I am curious to hear the RTC maintainers view on that proposition.
Here is a link to the datasheets of the two chips:
https://www.nxp.com/docs/en/data-sheet/PCF2131DS.pdf
https://www.nxp.com/docs/en/data-sheet/PCF2127.pdf
Thank you,
Hugo V.
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Hugo Villeneuve <hugo@xxxxxxxxxxx>
