On Fri, 2007-01-19 at 20:13 +0100, Guennadi Liakhovetski wrote: > > +static u32 clockevent_mode = 0; > > + > > +static void pxa_set_next_event(unsigned long evt, > > + struct clock_event_device *unused) > > +{ > > + OSMR0 = OSCR + evt; > > +} > > This doesn't work for me in various nasty ways. Please, check for a > minimum delay or loop to get ahead of time. See code in the "old" timer > ISR. See how it unconditionally adds at least 10 ticks...
I added support for match register based devices and you want to do something like this: static int hpet_next_event(unsigned long delta, struct clock_event_device *evt) { unsigned long cnt; cnt = hpet_readl(HPET_COUNTER); cnt += delta; hpet_writel(cnt, HPET_T0_CMP); return ((long)(hpet_readl(HPET_COUNTER) - cnt ) > 0); } The generic code takes care of the already expired event. tglx - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/