David Miller writes:

quoted text
> int update_persistent_clock(struct timespec now)
> {
> 	struct rtc_device *rtc = rtc_class_open("rtc0");
> 
> 	if (rtc)
> 		return rtc_set_mmss(rtc, now.tv_sec);
> 
> 	return -1;
> }
> 
> and that should handle this NTP shouldn't it?

Yes as long as your rtc set functions don't need to sleep, since
update_persistent_clock is called at interrupt level.  Some powerpc
systems have their RTC at the far end of an I2C bus, and the I2C
access routines can sleep.

Paul.
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