[PATCH] arm: ls1021a: setup hrtimer based tick broadcast

From: Jingchang Lu
Date: Fri Dec 05 2014 - 04:58:15 EST


This adds setup of hrtimer based tick broadcast to utilize
the hrtimer in SMP without other broadcast tick devices.

Signed-off-by: Jingchang Lu <jingchang.lu@xxxxxxxxxxxxx>
---
arch/arm/mach-imx/mach-ls1021a.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/arch/arm/mach-imx/mach-ls1021a.c b/arch/arm/mach-imx/mach-ls1021a.c
index b89c858..4d074cf 100644
--- a/arch/arm/mach-imx/mach-ls1021a.c
+++ b/arch/arm/mach-imx/mach-ls1021a.c
@@ -7,6 +7,10 @@
* (at your option) any later version.
*/

+#include <linux/clockchips.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+
#include <asm/mach/arch.h>

#include "common.h"
@@ -16,7 +20,15 @@ static const char * const ls1021a_dt_compat[] __initconst = {
NULL,
};

+static void __init ls1021a_init_time(void)
+{
+ of_clk_init(NULL);
+ clocksource_of_init();
+ tick_setup_hrtimer_broadcast();
+}
+
DT_MACHINE_START(LS1021A, "Freescale LS1021A")
.smp = smp_ops(ls1021a_smp_ops),
+ .init_time = ls1021a_init_time,
.dt_compat = ls1021a_dt_compat,
MACHINE_END
--
1.8.0

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