linux-kernel - Re: [PATCH v2 18/20] mips: csrc-r4k: Decrease r4k-clocksource rating if CPU

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Message-ID: <20200515210647.GA22922@alpha.franken.de>
Date:   Fri, 15 May 2020 23:06:47 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Paul Burton <paulburton@...nel.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Rob Herring <robh+dt@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 18/20] mips: csrc-r4k: Decrease r4k-clocksource rating
 if CPU_FREQ enabled

On Fri, May 15, 2020 at 10:48:27AM +0300, Serge Semin wrote:
> Thomas,
> Could you take a look at my comment below so I could proceed with the
> patchset v3 development?

I can't help, but using r4k clocksource with changing frequency is
probaly only usefull as a random generator. So IMHO the only two
options are disabling it or implement what arch/x86/kernel/tsc.c does.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]