From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f54.google.com (mail-wg0-f54.google.com. [74.125.82.54]) by gmr-mx.google.com with ESMTPS id gt9si278316wib.2.2015.05.08.03.29.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 08 May 2015 03:29:42 -0700 (PDT) Received: by wgiu9 with SMTP id u9so68340595wgi.3 for ; Fri, 08 May 2015 03:29:42 -0700 (PDT) Date: Fri, 8 May 2015 11:29:38 +0100 From: Lee Jones To: Paul Bolle Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@stlinux.com, devicetree@vger.kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, wim@iguana.be, a.zummo@towertech.it, linux-watchdog@vger.kernel.org, rtc-linux@googlegroups.com, linux@roeck-us.net Subject: [rtc-linux] Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability Message-ID: <20150508102938.GD29044@x1> 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> <1431078730.13593.14.camel@x220> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 In-Reply-To: <1431078730.13593.14.camel@x220> Reply-To: rtc-linux@googlegroups.com List-ID: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , 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 > > >=20 > > > > +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 > > >=20 > > > 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= '. > > >=20 > > > Are there plans to break that lockstep in the future? > >=20 > > What's stopping CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=3Dn? >=20 > If CLKSRC_ST_LPC=3Dy you mean? The lack of a prompt, I'd say. Ie, you > would need > bool "A very short description" >=20 > to be able to set these independently. >=20 > 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. --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog --=20 --=20 You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. ---=20 You received this message because you are subscribed to the Google Groups "= rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wg0-f52.google.com ([74.125.82.52]:33500 "EHLO mail-wg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751113AbbEHK3n (ORCPT ); Fri, 8 May 2015 06:29:43 -0400 Received: by wgin8 with SMTP id n8so68385788wgi.0 for ; Fri, 08 May 2015 03:29:42 -0700 (PDT) Date: Fri, 8 May 2015 11:29:38 +0100 From: Lee Jones To: Paul Bolle Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@stlinux.com, devicetree@vger.kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, wim@iguana.be, a.zummo@towertech.it, linux-watchdog@vger.kernel.org, rtc-linux@googlegroups.com, linux@roeck-us.net Subject: Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability Message-ID: <20150508102938.GD29044@x1> 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> <1431078730.13593.14.camel@x220> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1431078730.13593.14.camel@x220> Sender: linux-watchdog-owner@vger.kernel.org List-Id: linux-watchdog@vger.kernel.org Content-Transfer-Encoding: quoted-printable 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 > > >=20 > > > > +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 > > >=20 > > > This adds, as far as I can see, a Kconfig symbol that will always b= e 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'. > > >=20 > > > Are there plans to break that lockstep in the future? > >=20 > > What's stopping CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=3Dn? >=20 > If CLKSRC_ST_LPC=3Dy you mean? The lack of a prompt, I'd say. Ie, you > would need > bool "A very short description" >=20 > to be able to set these independently. >=20 > 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. --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog"= in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Fri, 8 May 2015 11:29:38 +0100 Subject: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability In-Reply-To: <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> <1431078730.13593.14.camel@x220> Message-ID: <20150508102938.GD29044@x1> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Follow Linaro: Facebook | Twitter | Blog From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability Date: Fri, 8 May 2015 11:29:38 +0100 Message-ID: <20150508102938.GD29044@x1> 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> <1431078730.13593.14.camel@x220> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <1431078730.13593.14.camel@x220> Sender: linux-watchdog-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Paul Bolle 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, 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 > > >=20 > > > > +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 > > >=20 > > > 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 b= e 'y'. > > >=20 > > > Are there plans to break that lockstep in the future? > >=20 > > What's stopping CONFIG_CLKSRC_ST_LPC_TIMER_SCHED_CLOCK=3Dn? >=20 > If CLKSRC_ST_LPC=3Dy you mean? The lack of a prompt, I'd say. Ie, you > would need > bool "A very short description" >=20 > to be able to set these independently. >=20 > But now I notice that I missed that there appears to be a problem wit= h > 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. --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-watchdo= g" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752830AbbEHK3p (ORCPT ); Fri, 8 May 2015 06:29:45 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:37081 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752274AbbEHK3n (ORCPT ); Fri, 8 May 2015 06:29:43 -0400 Date: Fri, 8 May 2015 11:29:38 +0100 From: Lee Jones To: Paul Bolle Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@stlinux.com, devicetree@vger.kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, wim@iguana.be, a.zummo@towertech.it, linux-watchdog@vger.kernel.org, rtc-linux@googlegroups.com, linux@roeck-us.net Subject: Re: [PATCH 03/12] clocksource: sti: Provide 'use timer as sched clock' capability Message-ID: <20150508102938.GD29044@x1> 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> <1431078730.13593.14.camel@x220> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1431078730.13593.14.camel@x220> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Follow Linaro: Facebook | Twitter | Blog