[PATCH] arm: ls1021a: utilize hrtimer based broadcast mode

From	Alison Wang <b18965@freescale.com>
Newsgroups	linux.kernel
Subject	[PATCH] arm: ls1021a: utilize hrtimer based broadcast mode
Date	2015-07-10 11:50 +0200
Message-ID	<pKD6q-4eQ-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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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[PATCH] arm: ls1021a: utilize hrtimer based broadcast mode Alison Wang <b18965@freescale.com> - 2015-07-10 11:50 +0200

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