Re: [MIPS] Use generic NTP code for all MIPS platforms

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

On Mon, 13 Aug 2007 20:51:39 +0200, Franck Bui-Huu <vagabon.xyz@gmail.com> 
wrote:
> Well a more general question could be how is the RTC class layer
> supposed to interact with the kernel ?
> 
> Should RTC class layer implement a general service to update/read the
> RTC, IOW should it implement {read,update}_persistent_clock() ?

Some difficulties are:

* timekeeping subsystem calls {read,update}_persistent_clock() with
  irq-disabled.  But most RTC class routines might sleep.

* RTC class can have multiple RTCs on the system.

* There are already some conflicting features in RTC class ---
  rtc_suspend and rtc_resume try to adjust the wall clock.

* IIRC Some people said "NTP sync can be done all in userland" ;-)


Does anybody know if there was "general consensus" on this topic?

---
Atsushi Nemoto