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SubjectRE: [PATCH] arm: ls1021a: utilize hrtimer based broadcast mode
Date
Hi, Mark,

> On Fri, Jul 10, 2015 at 10:39:05AM +0100, Alison Wang wrote:
> > Hrtimer based broadcast mode is used instead of periodic tick
> > broadcast to provide high resolution clock in SMP.
> >
> > Signed-off-by: Alison Wang <alison.wang@freescale.com>
> > ---
> > arch/arm/mach-imx/mach-ls1021a.c | 11 +++++++++++
> > 1 file changed, 11 insertions(+)
> >
> > diff --git a/arch/arm/mach-imx/mach-ls1021a.c
> > b/arch/arm/mach-imx/mach-ls1021a.c
> > index b89c858..1a1a115 100644
> > --- a/arch/arm/mach-imx/mach-ls1021a.c
> > +++ b/arch/arm/mach-imx/mach-ls1021a.c
> > @@ -8,9 +8,19 @@
> > */
> >
> > #include <asm/mach/arch.h>
> > +#include <linux/clk-provider.h>
> > +#include <linux/clockchips.h>
> > +#include <linux/clocksource.h>
> >
> > #include "common.h"
> >
> > +static void __init ls1021a_init_time(void) {
> > + of_clk_init(NULL);
> > + clocksource_of_init();
> > + tick_setup_hrtimer_broadcast();
> > +}
>
> It would be nicer to place this in the arch time_init() function, as
> already happens for arm64 and powerpc. That way everyone can benefit.
[Alison Wang] Yes, I think so.
Thanks.
>
> Thanks,
> Mark.
>
> > +
> > static const char * const ls1021a_dt_compat[] __initconst = {
> > "fsl,ls1021a",
> > NULL,
> > @@ -18,5 +28,6 @@ static const char * const ls1021a_dt_compat[]
> > __initconst = {
> >
> > DT_MACHINE_START(LS1021A, "Freescale LS1021A")
> > .smp = smp_ops(ls1021a_smp_ops),
> > + .init_time = ls1021a_init_time,
> > .dt_compat = ls1021a_dt_compat,
> > MACHINE_END
> > --
> > 2.1.0.27.g96db324
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> >


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