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Groups > linux.kernel > #1606697
| From | Alexander Kochetkov <al.kochet@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v7 7/7] ARM: dts: rockchip: disable arm-global-timer for rk3188 |
| Date | 2017-03-22 17:00 +0100 |
| Message-ID | <tnQQ3-4OP-55@gated-at.bofh.it> (permalink) |
| References | <tnQQ1-4OP-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The clocksource and the sched_clock provided by the arm_global_timer
are quite unstable because their rates depend on the cpu frequency.
On the other side, the arm_global_timer has a higher rating than the
rockchip_timer, it will be selected by default by the time framework
while we want to use the stable rockchip clocksource.
Let's disable the arm_global_timer in order to have the rockchip
clocksource selected by default.
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm/boot/dts/rk3188.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
index a20d501..c316468 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -548,6 +548,7 @@
&global_timer {
interrupts = <GIC_PPI 11 0xf04>;
+ status = "disabled";
};
&local_timer {
--
1.7.9.5
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[PATCH v7 7/7] ARM: dts: rockchip: disable arm-global-timer for rk3188 Alexander Kochetkov <al.kochet@gmail.com> - 2017-03-22 17:00 +0100
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