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SubjectRe: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability
On Fri, 08 May 2015, Paul Bolle wrote:

> On Fri, 2015-05-08 at 10:36 +0100, Lee Jones wrote:
> > 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?
>
> If CLKSRC_ST_LPC=y you mean? The lack of a prompt, I'd say. Ie, you
> would need
> bool "A very short description"
>
> to be able to set these independently.
>
> But now I notice that I missed that there appears to be a problem with
> CLKSRC_ST_LPC too. I'll reply to 2/12 shortly.

Ah, you mean from menuconfig. I almost forgot what that was. ;)

I can add a menu option, no problem.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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