On 26/10/2023 12:13:23+0200, Javier Carrasco wrote: > I want to model the INTA pin as a clock source that only should run in > sleep mode because its clock is only used in that mode. Therefore I want > the pin to stay in hi-Z during normal operation. Can you disclose what is the user of the clock, do you have a driver for this device? > > I do not want to get any interrupts from the INTA pin and the battery > mode indication is not relevant for me either. I do not know the CCF > mechanism in other RTCs though, but I think that the hi-Z mode > accomplishes exactly what I described.The assumption about the battery > mode is therefore beyond my knowledge, but my first reaction is that we > already have the hi-Z for that. > > So in the end I just need a mechanism to configure INTA as hi-Z, which > the driver still does not support. There is another application where > the clock output is not required even though it is physically connected, > so hi-Z is again an interesting mode and the battery mode would be > available if it ever becomes relevant for anyone. > -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
