linux-kernel - [PATCH] arm: kernel: utilize hrtimer based broadcast

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Date:	Fri, 17 Jul 2015 17:11:52 +0800
From:	Alison Wang <b18965@...escale.com>
To:	<mark.rutland@....com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
CC:	Alison Wang <alison.wang@...escale.com>
Subject: [PATCH] arm: kernel: utilize hrtimer based broadcast

Hrtimer based broadcast is used on ARM platform. It can be
registered as the tick broadcast device in the absence of
a real external clock device.

Signed-off-by: Alison Wang <alison.wang@...escale.com>
---
 arch/arm/kernel/time.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index a66e37e..a9bc73c 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -12,6 +12,7 @@
  *  reading the RTC at bootup, etc...
  */
 #include <linux/clk-provider.h>
+#include <linux/clockchips.h>
 #include <linux/clocksource.h>
 #include <linux/errno.h>
 #include <linux/export.h>
@@ -121,5 +122,7 @@ void __init time_init(void)
 		of_clk_init(NULL);
 #endif
 		clocksource_of_init();
+
+		tick_setup_hrtimer_broadcast();
 	}
 }
-- 
2.1.0.27.g96db324

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