[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sat, 3 Mar 2018 22:29:08 +0000
From: Sasha Levin <Alexander.Levin@...rosoft.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"stable@...r.kernel.org" <stable@...r.kernel.org>
CC: Alexander Kochetkov <al.kochet@...il.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.9 124/219] ARM: dts: rockchip: disable
arm-global-timer for rk3188
From: Alexander Kochetkov <al.kochet@...il.com>
[ Upstream commit 500d0aa918a2ea6bb918fee8adcf27dc2912bcd1 ]
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@...il.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Reviewed-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
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 31f81b265cef..73a200914f0b 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -530,6 +530,7 @@
&global_timer {
interrupts = <GIC_PPI 11 0xf04>;
+ status = "disabled";
};
&local_timer {
--
2.14.1
Powered by blists - more mailing lists