From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752735AbbEHKKH (ORCPT ); Fri, 8 May 2015 06:10:07 -0400 Received: from lb3-smtp-cloud3.xs4all.net ([194.109.24.30]:50473 "EHLO lb3-smtp-cloud3.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751303AbbEHKKD (ORCPT ); Fri, 8 May 2015 06:10:03 -0400 Message-ID: <1431079797.13593.28.camel@x220> Subject: Re: [PATCH 02/12] clocksource: sti: Provide support for the ST LPC Clocksource IP From: Paul Bolle To: Lee Jones 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 Date: Fri, 08 May 2015 12:09:57 +0200 In-Reply-To: <1431005924-21777-3-git-send-email-lee.jones@linaro.org> References: <1431005924-21777-1-git-send-email-lee.jones@linaro.org> <1431005924-21777-3-git-send-email-lee.jones@linaro.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4 (3.10.4-4.fc20) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2015-05-07 at 14:38 +0100, Lee Jones wrote: > --- a/drivers/clocksource/Kconfig > +++ b/drivers/clocksource/Kconfig > +config CLKSRC_ST_LPC > + bool > + depends on ARCH_STI By itself this does nothing. You can't set this symbol to 'y', even if ARCH_STI is 'y', right? Of course, ARCH_STI will select this symbol (see 11/12) otherwise it would be inert. But as ARCH_STI selects CLKSRC_ST_LPC I'd say this dependency isn't actually needed. Are other selects of CLKSRC_ST_LPC expected to be added in the future? If not, CLKSRC_ST_LPC should operate in lockstep with ARCH_STI. In that case you might as well not bother with CLKSRC_ST_LPC and use ARCH_STI directly. (But that forces you to move the select statement below into the ARCH_STI entry, which might be ugly.) > + select CLKSRC_OF if OF > + help > + Enable this option to use the Low Power controller timer > + as clocksource. (Please add an empty line.) > endmenu Thanks, Paul Bolle