From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755637Ab3AVToo (ORCPT ); Tue, 22 Jan 2013 14:44:44 -0500 Received: from quartz.orcorp.ca ([184.70.90.242]:37288 "EHLO quartz.orcorp.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751625Ab3AVTon (ORCPT ); Tue, 22 Jan 2013 14:44:43 -0500 Date: Tue, 22 Jan 2013 12:44:33 -0700 From: Jason Gunthorpe To: John Stultz Cc: Feng Tang , Thomas Gleixner , Alessandro Zummo , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 3/3] timekeeping: Add CONFIG_HAS_PERSISTENT_CLOCK option Message-ID: <20130122194433.GG30647@obsidianresearch.com> References: <1358266189-8812-1-git-send-email-feng.tang@intel.com> <1358266189-8812-3-git-send-email-feng.tang@intel.com> <50F5B2FA.6030006@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50F5B2FA.6030006@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Broken-Reverse-DNS: no host name found for IP address 10.0.0.162 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 15, 2013 at 11:50:18AM -0800, John Stultz wrote: > On 01/15/2013 08:09 AM, Feng Tang wrote: > >Make the persistent clock check a kernel config option, so that some > >platform can explicitely select it, also make CONFIG_RTC_HCTOSYS depends > >on its non-existence, which could prevent the persistent clock and RTC > >code from doing similar thing twice during system's init/suspend/resume > >phases. > > > >If the CONFIG_HAS_PERSISTENT_CLOCK=n, then no change happens for kernel > >which still does the persistent clock check in timekeeping_init(). > > > >Cc: Thomas Gleixner > >Suggested-by: John Stultz > >Signed-off-by: Feng Tang > > Applied. I also added a dependency for Jason's CONFIG_RTC_SYSTOHC. Sort of an ugly config name, since I gather ARM should always set this to 'n'... CONFIG_USE_ONLY_PERSISTENT_CLOCK ? Cheers, Jason