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Re: [PATCH v6 5/5] ARM: dts: rockchip: disable arm-global-timer for rk3188

From Heiko Stuebner <heiko@sntech.de>
Newsgroups linux.kernel
Subject Re: [PATCH v6 5/5] ARM: dts: rockchip: disable arm-global-timer for rk3188
Date 2017-02-01 10:50 +0100
Message-ID <t5ZI6-4dz-13@gated-at.bofh.it> (permalink)
References <t5G2J-Kr-3@gated-at.bofh.it> <t5G2K-Kr-27@gated-at.bofh.it>
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Am Dienstag, 31. Januar 2017, 15:43:16 CET schrieb Alexander Kochetkov:
> 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>

depending on who is picking that up, they can add my
Reviewed-by: Heiko Stuebner <heiko@sntech.de>

if needed.

Later on we might need to look at the rk3066 as well, as it might have the 
same issue.

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Thread

[PATCH v6 0/5] Implement clocksource for rockchip SoC using rockchip timer Alexander Kochetkov <al.kochet@gmail.com> - 2017-01-31 13:50 +0100
  [PATCH v6 4/5] ARM: dts: rockchip: add timer entries to rk3188 SoC Alexander Kochetkov <al.kochet@gmail.com> - 2017-01-31 13:50 +0100
    Re: [PATCH v6 4/5] ARM: dts: rockchip: add timer entries to rk3188 SoC Heiko Stuebner <heiko@sntech.de> - 2017-02-01 10:50 +0100
  [PATCH v6 3/5] clocksource/drivers/rockchip_timer: implement clocksource timer Alexander Kochetkov <al.kochet@gmail.com> - 2017-01-31 13:50 +0100
  [PATCH v6 5/5] ARM: dts: rockchip: disable arm-global-timer for rk3188 Alexander Kochetkov <al.kochet@gmail.com> - 2017-01-31 13:50 +0100
    Re: [PATCH v6 5/5] ARM: dts: rockchip: disable arm-global-timer for rk3188 Heiko Stuebner <heiko@sntech.de> - 2017-02-01 10:50 +0100

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