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Message-ID: <20150508093603.GB29044@x1>
Date: Fri, 8 May 2015 10:36:03 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Paul Bolle <pebolle@...cali.nl>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
kernel@...inux.com, devicetree@...r.kernel.org,
daniel.lezcano@...aro.org, tglx@...utronix.de, wim@...ana.be,
a.zummo@...ertech.it, linux-watchdog@...r.kernel.org,
rtc-linux@...glegroups.com, linux@...ck-us.net
Subject: Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched
clock' capability
On Fri, 08 May 2015, Paul Bolle wrote:
> On Thu, 2015-05-07 at 14:38 +0100, Lee Jones wrote:
> > --- a/drivers/clocksource/Kconfig
> > +++ b/drivers/clocksource/Kconfig
>
> > +config CLKSRC_ST_LPC_TIMER_SCHED_CLOCK
> > + bool
> > + depends on CLKSRC_ST_LPC
> > + default y
> > + help
> > + Use Low Power controller timer clock source as sched_clock
>
> This adds, as far as I can see, a Kconfig symbol that will always be in
> lockstep with CLKSRC_ST_LPC. Ie, CLKSRC_ST_LPC and
> CLKSRC_ST_LPC_TIMER_SCHED_CLOCK will always both be 'n' or both be 'y'.
>
> Are there plans to break that lockstep in the future?
What's stopping CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=n?
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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