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[v7,7/7] ARM: dts: rockchip: disable arm-global-timer for rk3188

Message ID 1490197714-25415-8-git-send-email-al.kochet@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alexander Kochetkov March 22, 2017, 3:48 p.m. UTC 
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(+)
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Patch

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 {