Messages in this thread Patch in this message | | | From | Alison Wang <> | Subject | [PATCH] arm: ls1021a: utilize hrtimer based broadcast mode | Date | Fri, 10 Jul 2015 17:39:05 +0800 |
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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(); +} + 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
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