From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Bolle Subject: Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability Date: Fri, 08 May 2015 11:52:10 +0200 Message-ID: <1431078730.13593.14.camel@x220> References: <1431005924-21777-1-git-send-email-lee.jones@linaro.org> <1431005924-21777-4-git-send-email-lee.jones@linaro.org> <1431074699.13593.4.camel@x220> <20150508093603.GB29044@x1> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150508093603.GB29044@x1> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Lee Jones Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, daniel.lezcano-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, wim-IQzOog9fTRqzQB+pC5nmwQ@public.gmane.org, a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org, linux-watchdog-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org List-Id: devicetree@vger.kernel.org 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. Thanks, Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html