Re: [rtc-linux] Re: [PATCH] RTC class driver for ppc_md RTCfunctions

From: Alessandro Zummo
Date: Wed Apr 30 2008 - 16:29:34 EST

On Wed, 30 Apr 2008 18:34:33 +0100
David Woodhouse <dwmw2@xxxxxxxxxxxxx> wrote:

> >
> > If we are talking about milliseconds I think a suspect is not enough.
> Let me rephrase: This is how we're doing it for _every_ machine/platform
> which supports update_persistent_clock(). It makes sense to let
> individual RTC-class drivers do it differently if they need to, but it's
> a damn good default behaviour until/unless someone actually shows that
> they need it to be different. :)

I still do not think that it makes sense to keep an unreliable hw RTC in
sync with the system clock..

I remember somone wrote a kind of ntp subsytem for the kernel but can't
remember who :(

> > My opinion is that such NTP mode could be removed from the kernel/not
> > implemented in rtc class without loosing anything.
> Want to send a patch to lkml which removes update_persistent_clock() and
> see what people think of that? :)

I'm not _that_ mad, unless the patch is signed by Linus :)

Anyway I will gladly accept a patch that implements this ntp mode :)


Best regards,

Alessandro Zummo,
Tower Technologies - Torino, Italy

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