Messages in this thread | | | Date | Fri, 19 Jan 2007 20:13:32 +0100 (CET) | From | Guennadi Liakhovetski <> | Subject | Re: [patch 3/3] clockevent driver for arm/pxa2xx |
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On Tue, 9 Jan 2007 s.hauer@pengutronix.de wrote:
> Add a clockevent driver for pxa systems. This patch also removes the pxa > dyntick support since it is not necessary anymore with generic dynamic > tick support > > Signed-off-by: Luotao Fu <lfu@pengutronix.de> > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > > --- > arch/arm/mach-pxa/time.c | 106 ++++++++++++++++++++++------------------------- > 1 file changed, 51 insertions(+), 55 deletions(-) > > Index: arch/arm/mach-pxa/time.c > =================================================================== > --- a/arch/arm/mach-pxa/time.c.orig > +++ b/arch/arm/mach-pxa/time.c > @@ -19,6 +19,7 @@ > #include <linux/errno.h> > #include <linux/sched.h> > #include <linux/clocksource.h> > +#include <linux/clockchips.h> > > #include <asm/system.h> > #include <asm/hardware.h> > @@ -29,6 +30,50 @@ > #include <asm/mach/time.h> > #include <asm/arch/pxa-regs.h> > > +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...
Thanks Guennadi --- Guennadi Liakhovetski - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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