Hi!
On 5/28/24 19:56, Alexandre Belloni wrote:
Hello,
On 28/05/2024 18:13:14+0200, Csókás, Bence wrote:
Currently, Update Interrupt Enable is performed by emulating
it with either polling, or alarm interrupts. Some RTCs, however,
can directly provide Update Interrupts.
This has been removed from the kernel 13 years ago. What is your use
case to reintroduce it?
The rationale was in the cover letter. Currently, the RTC core uses the
alarm system to implement UI, but this causes lost updates on PCF2129.
However, it has built-in Update Interrupt capabilities in the form of
the Second Interrupt, therefore we should just use that.
So my question would instead be: what was the rationale of removing it
in the first place?
Bence
