From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5DEA7C4360F for ; Tue, 2 Apr 2019 21:07:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B56820674 for ; Tue, 2 Apr 2019 21:07:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725956AbfDBVHq (ORCPT ); Tue, 2 Apr 2019 17:07:46 -0400 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:40517 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725822AbfDBVHq (ORCPT ); Tue, 2 Apr 2019 17:07:46 -0400 X-Originating-IP: 86.202.231.219 Received: from localhost (lfbn-lyo-1-149-219.w86-202.abo.wanadoo.fr [86.202.231.219]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 354E820006; Tue, 2 Apr 2019 21:07:42 +0000 (UTC) Date: Tue, 2 Apr 2019 23:07:42 +0200 From: Alexandre Belloni To: Tony Lindgren Cc: Keerthy , a.zummo@towertech.it, t-kristo@ti.com, ssantosh@kernel.org, d-gerlach@ti.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rtc@vger.kernel.org Subject: Re: [PATCH v2 2/5] rtc: interface: Add power_off_program to rtc_class_ops Message-ID: <20190402210742.GH22216@piout.net> References: <20190402034253.4928-1-j-keerthy@ti.com> <20190402034253.4928-3-j-keerthy@ti.com> <20190402173232.GP49658@atomide.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190402173232.GP49658@atomide.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org On 02/04/2019 10:32:32-0700, Tony Lindgren wrote: > * Keerthy [190402 03:43]: > > Add an interface function to set up the rtc for a power_off > > mode. > > > > Signed-off-by: Keerthy > > --- > > drivers/rtc/interface.c | 12 ++++++++++++ > > drivers/rtc/rtc-omap.c | 1 + > > include/linux/rtc.h | 2 ++ > > 3 files changed, 15 insertions(+) > > > > diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c > > index ccb7d6b4da3b..4846ec897067 100644 > > --- a/drivers/rtc/interface.c > > +++ b/drivers/rtc/interface.c > > @@ -1070,3 +1070,15 @@ int rtc_set_offset(struct rtc_device *rtc, long offset) > > trace_rtc_set_offset(offset, ret); > > return ret; > > } > > + > > +/** > > + * rtc_power_off_program - Some of the rtc are hooked on to PMIC_EN > > + * line and can be used to power off the SoC. > > + * > > + * Kernel interface to program rtc to power off > > + */ > > +int rtc_power_off_program(struct rtc_device *rtc) > > +{ > > + return rtc->ops->power_off_program(rtc->dev.parent); > > +} > > +EXPORT_SYMBOL_GPL(rtc_power_off_program); > > This whole series looks OK to me. Not sure about the naming for > rtc_power_off_program(), would rtc_power_off_device() be more > generic? > Well, even if this is more generic, this feels way too ad-hoc to me. The series is adding a function and a callback to the core for, from what I understand, only one particular board. You may as well simply export the function directly from the rtc-omap driver as anyway, this is added as a dependency in the last patch. Something else I would be open to but I'm not completely sure this fits your use case is a new interface that would take an alarm index as a parameter to allow setting any alarm on the RTC. This would at least be usable for multiple other drivers. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com