linux-kernel - Re: [PATCH] clocksource: versatile: Allow CONFIG_CLKSRC

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Message-ID: <CACRpkdau0X1y3N6ryJaTA7BK2MdCHVsG_X2bpQKp0mP5VQTucA@mail.gmail.com>
Date:   Sat, 18 Apr 2020 01:37:46 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] clocksource: versatile: Allow CONFIG_CLKSRC_VERSATILE to
 be disabled

On Fri, Apr 17, 2020 at 11:20 PM Rob Herring <robh@...nel.org> wrote:

> The timer-versatile driver provides a sched_clock for certain Arm Ltd.
> reference platforms. Specifically, it is used on Versatile and 32-bit
> VExpress. It is not needed for those platforms with an arch timer (all
> the 64-bit ones) yet CONFIG_MFD_VEXPRESS_SYSREG does still need to be
> enabled. In that case, the timer-versatile can only be disabled when
> COMPILE_TEST is enabled which is not desirable. Let's use the sub-arch
> kconfig symbols instead.
>
> Realview platforms don't have the sysregs that this driver uses so
> correct the help text.
>
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Rob Herring <robh@...nel.org>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Thanks!
Linus Walleij