linux-kernel - Re: [PATCH] clocksource/arm_global_timer: reconfigure clockevents after cpufreq change

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Message-Id: <BC3314B3-6504-4324-8707-C04534893DAC@gmail.com>
Date:   Tue, 29 Nov 2016 17:51:53 +0300
From:   Alexander Kochetkov <al.kochet@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Marc Zyngier <marc.zyngier@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        LAK <linux-arm-kernel@...ts.infradead.org>, kernel@...inux.com,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Patrice Chotard <patrice.chotard@...com>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH] clocksource/arm_global_timer: reconfigure clockevents after cpufreq change


> 29 нояб. 2016 г., в 17:32, Thomas Gleixner <tglx@...utronix.de> написал(а):
> 
> Can we just disable that global timer on affected SoCs and use something
> else instead?

I’ve sent patch series for fixing that on rockchip SoC.
http://lists.infradead.org/pipermail/linux-rockchip/2016-November/013217.html

But the series contain fix only for rk3188, because I don’t have another rockchip
SoC. rk3288 and other could be easy fixed with dts files.

There are a lot of other platforms what probably use shed_clock and
clocksource form global-timer.
 
alexander@...ntu:dts$ grep arm,cortex-a9-global-timer *
am4372.dtsi:		compatible = "arm,cortex-a9-global-timer";
artpec6.dtsi:		compatible = "arm,cortex-a9-global-timer";
bcm5301x.dtsi:			compatible = "arm,cortex-a9-global-timer";
bcm63138.dtsi:			compatible = "arm,cortex-a9-global-timer";
bcm-cygnus.dtsi:			compatible = "arm,cortex-a9-global-timer";
bcm-nsp.dtsi:			compatible = "arm,cortex-a9-global-timer";
hip01.dtsi:			compatible = "arm,cortex-a9-global-timer";
rk3xxx.dtsi:		compatible = "arm,cortex-a9-global-timer";
stih407-family.dtsi:		compatible = "arm,cortex-a9-global-timer";
stih41x.dtsi:		compatible = "arm,cortex-a9-global-timer";
uniphier-common32.dtsi:			compatible = "arm,cortex-a9-global-timer";
uniphier-ph1-sld3.dtsi:			compatible = "arm,cortex-a9-global-timer";
vexpress-v2p-ca5s.dts:		             "arm,cortex-a9-global-timer";
vf500.dtsi:				compatible = "arm,cortex-a9-global-timer";
zx296702.dtsi:			compatible = "arm,cortex-a9-global-timer";
zynq-7000.dtsi:			compatible = "arm,cortex-a9-global-timer»;

Regards,
Alexander.