Re: [PATCH 1/2] rtc: Add UIE handling ability to rtc_class_ops

["Csókás Bence" <csokas.bence@prolan.hu>]

Hi!

On 5/30/24 12:35, Alexandre Belloni wrote:
> Well, you didn't answer my question which is why do you need UIE and
> especially UIE from the RTC? Using the timer emulation is probably what
> you want because it is in sync with your system time.

We set up `chrony` to use UI events as a time reference. Upon startup, 
`chrony` opens the RTC with UIE_ON, reads the initial RTC value on the 
first transition, then keeps the system clock in sync with the RTC using 
the interrupt signal. So we want to synchronize the system time to UIE, 
not the other way around.

 >> So my question would instead be: what was the rationale of removing 
it in
 >> the first place?

I was genuinely asking, because I couldn't find the original letter, 
only subsequent ones from 2-4 years ago, removing bits and pieces from 
individual RTC device drivers.

Bence