On Monday 28 December 2015 07:18:58 Huan Wang wrote:

Hi, Arnd,

	Could you help to review the following patch? Thanks.

Hi Alison,

I'm sorry but I understand very little of this particular area of the kernel.

I've added Daniel Lezcano, John Stultz and Thomas Gleixner to Cc, they all
know this much better than I do and one of them should be able to comment after
their Christmas break.

	Arnd

quoted

On Fri, Jul 17, 2015 at 10:11:52AM +0100, Alison Wang wrote:

quoted

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 <redacted>

This looks sensible to me. FWIW:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Thanks,
Mark.

quoted

---
 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();
 	}
 }