[PATCH] arm: kernel: utilize hrtimer based broadcast

Huan Wang
2015-10-27T02:58:06Z

Hi, Mark,

Could you comment this patch? It is based on your suggestion in https://patchwork.kernel.org/patch/6764231/ .

Thanks.

Best Regards,
Alison Wang

> -----Original Message-----
> From: Alison Wang [mailto:b18965 at freescale.com]
> Sent: Friday, July 17, 2015 5:12 PM
> To: mark.rutland at arm.com; linux-arm-kernel at lists.infradead.org; linux-
> kernel at vger.kernel.org
> Cc: Wang Huan-B18965
> 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@freescale.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