layerscape: add patches-5.4
[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 301-arch-0001-arm-kernel-utilize-hrtimer-based-broadcast.patch
1 From 0f87c1dd8f10958121e10219c89e8d710babd1ce Mon Sep 17 00:00:00 2001
2 From: Alison Wang <b18965@freescale.com>
3 Date: Fri, 17 Jul 2015 17:11:52 +0800
4 Subject: [PATCH] arm: kernel: utilize hrtimer based broadcast
5
6 Hrtimer based broadcast is used on ARM platform. It can be
7 registered as the tick broadcast device in the absence of
8 a real external clock device.
9
10 Signed-off-by: Alison Wang <alison.wang@freescale.com>
11 Acked-by: Mark Rutland <mark.rutland@arm.com>
12 ---
13 arch/arm/kernel/time.c | 3 +++
14 1 file changed, 3 insertions(+)
15
16 --- a/arch/arm/kernel/time.c
17 +++ b/arch/arm/kernel/time.c
18 @@ -9,6 +9,7 @@
19 * reading the RTC at bootup, etc...
20 */
21 #include <linux/clk-provider.h>
22 +#include <linux/clockchips.h>
23 #include <linux/clocksource.h>
24 #include <linux/errno.h>
25 #include <linux/export.h>
26 @@ -107,5 +108,7 @@ void __init time_init(void)
27 of_clk_init(NULL);
28 #endif
29 timer_probe();
30 +
31 + tick_setup_hrtimer_broadcast();
32 }
33 }