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SubjectRe: [PATCH v6 15/29] x86/hpet: Add helper function hpet_set_comparator_periodic()
On Sat, May 14, 2022 at 10:17:38AM +0200, Thomas Gleixner wrote:
> On Fri, May 13 2022 at 14:19, Ricardo Neri wrote:
> > On Fri, May 06, 2022 at 11:41:13PM +0200, Thomas Gleixner wrote:
> >> The argument about not bloating the code
> >> with an "obvious???" function which is quite small is slightly beyond my
> >> comprehension level.
> >
> > That obvious function would look like this:
> >
> > void hpet_set_comparator_one_shot(int channel, u32 delta)
> > {
> > u32 count;
> >
> > count = hpet_readl(HPET_COUNTER);
> > count += delta;
> > hpet_writel(count, HPET_Tn_CMP(channel));
> > }
>
> This function only works reliably when the delta is large. See
> hpet_clkevt_set_next_event().

That is a good point. One more reason to not have a
hpet_set_comparator_one_shot(), IMO.

Thanks and BR,
Ricardo

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