On 26/01/2021 23.48, Alexandre Belloni wrote: > On 21/12/2020 22:17:54+0100, Rasmus Villemoes wrote: >> On 19/12/2020 02.34, Alexandre Belloni wrote: >>> pcf2127, pcf2129 and pca2129 support start-year and reset-source. >>> >> >> No, the 2129 variant doesn't even have a reset output pin. Not sure if >> there's any way to reflect that, and it probably doesn't matter, since >> nobody's going to add the reset-source property to a 2129 node. But the >> commit message is a bit misleading. >> > > Actually no, the INT pin can be used as a reset, the pcf/pca2129 > can be used as a watchdog and so it may need the reset-source property. Unless I'm missing something, that would require some rather creative extra circuitry: The interrupt pin is kept low until the appropriate bit in the rtc is cleared, so if that is routed directly to a reset pin on the SOC, the SOC would be kept in reset indefinitely. Rasmus
