On Wednesday 28 March 2007 22:59:26 David Brownell wrote:
> On Wednesday 28 March 2007 1:19 pm, Maxim wrote:
> > On Wednesday 28 March 2007 21:38:55 David Brownell wrote:
>
> > >
> > > Also, making HPET use the legacy mode seems like a step backwards.
>
> > It is not 'legacy' mode,
> > It is a legacy replacement mode.
>
> Typo, sorry.
>
>
> > It this mode HPET takes over IRQ0 and IRQ 8 and provides this way
> > replacement for PIT and RTC periodic function
>
> It's that RTC periodic thing that bothers me, I don't mind about
> the PIT. Remember that IRQ8 is also used for other RTC functions.
>
> Now, if there were a way to tell rtc-cmos that HPET is active,
> and arrange some kind of handshake ... that would be different.
>
> - Dave
>
Yes,
When HPET is active it eats RTC IRQ,
So the only way out is to emulate RTC using HPET,
It is done this way in old rtc driver, rtc-cmos should do the same.
Of course suspend resume is not supported at all by old rtc driver
I already wrote complete support for suspend/resume for old rtc driver
(I wrote it long time ago)
Now I fixed it to support HPET , and this way I discovered that HPET
doesn't have suspend resume functions
I will do last checks now and send this patch very soon
I am also planning to add support of HPET and suspend/resume for
rtc-cmos, but I didn't start this yet.
Best regards,
Maxim Levitsky
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