linux-kernel - clockevent questions

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Message-ID: <38b2ab8a0705120754l281f54eevd1e91e2f01fff6f2@mail.gmail.com>
Date:	Sat, 12 May 2007 16:54:10 +0200
From:	"Francis Moreau" <francis.moro@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	tglx@...utronix.de
Subject: clockevent questions

Hi,

I'm trying to use clocksource and clockevent new subsystem. My
platform has a timer that I'd like to use both as a clocksource and a
clockevent devices. This timer is continueous in sense that it can run
without any interruption so I assume I can flag the clocksource device
with "CLOCK_SOURCE_IS_CONTINUOUS". However I noticed that clockevent
device can be stopped by using "set_mode()" method. Are these two
behaviours compatible ?

Another question is that I have another embedded 16 bits timer that I
would like to use. Since the timer is only 16 bits, the maximum
interval is tiny, My question if a user ask for a clockevent device
using an interval is bigger that 2^16, the clockevent system doesn't
return an error. Instead it silently reduce the interval to 2^16. Is
this correct ? if so why ?

Thanks for your answers
-- 
Francis
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