linux-kernel - Re: [PATCH 2/7] clocksource: Add Tegra186 timers support

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Date:   Mon, 23 Mar 2020 14:42:21 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Jon Hunter <jonathanh@...dia.com>, linux-tegra@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/7] clocksource: Add Tegra186 timers support

On Fri, Mar 20, 2020 at 06:38:32PM +0300, Dmitry Osipenko wrote:
> 20.03.2020 18:11, Dmitry Osipenko пишет:
> > 20.03.2020 16:34, Thierry Reding пишет:
> >> From: Thierry Reding <treding@...dia.com>
> >>
> >> Currently this only supports a single watchdog, which uses a timer in
> >> the background for countdown. Eventually the timers could be used for
> >> various time-keeping tasks, but by default the architected timer will
> >> already provide that functionality.
> >>
> >> Signed-off-by: Thierry Reding <treding@...dia.com>
> >> ---
> > 
> > ...
> >> +config TEGRA186_TIMER
> >> +	bool "NVIDIA Tegra186 timer driver"
> > 
> > tristate?
> > 
> >> +	depends on ARCH_TEGRA || COMPILE_TEST
> > 
> > depends on WATCHDOG && WATCHDOG_CORE?
> 
> Actually `select WATCHDOG_CORE` for the WATCHDOG_CORE.

WATCHDOG_CORE is user-visible, so it's not safe to select it. Any reason
depends on WATCHDOG && WATCHDOG_CORE wouldn't work? I guess a dependency
on WATCHDOG_CORE would be enough because that itself already depends on
WATCHDOG.

Thierry

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