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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 59B31C33C9E for ; Tue, 14 Jan 2020 20:20:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 387A724670 for ; Tue, 14 Jan 2020 20:20:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727102AbgANUUJ (ORCPT ); Tue, 14 Jan 2020 15:20:09 -0500 Received: from stcim.de ([78.46.90.227]:46760 "EHLO stcim.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726839AbgANUUJ (ORCPT ); Tue, 14 Jan 2020 15:20:09 -0500 X-Greylist: delayed 1172 seconds by postgrey-1.27 at vger.kernel.org; Tue, 14 Jan 2020 15:20:08 EST Received: from [2001:4dd7:c2a1:0:a288:b4ff:fee5:f5cc] (helo=porty) by stcim with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1irSMc-0001mT-EC; Tue, 14 Jan 2020 21:00:34 +0100 Date: Tue, 14 Jan 2020 21:00:34 +0100 From: Stefan Lengfeld To: Marco Felsch Cc: support.opensource@diasemi.com, linux@roeck-us.net, Adam.Thomson.Opensource@diasemi.com, linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de Subject: Re: [PATCH] watchdog: da9062: make restart handler atomic safe Message-ID: <20200114200034.nbk6vf77ucngfs6o@porty> References: <20200113091521.5754-1-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200113091521.5754-1-m.felsch@pengutronix.de> X-PGP-Key: https://stefanchrist.eu/personal/Stefan_Lengfeld_0xE44A23B289092311.asc User-Agent: NeoMutt/20180716 Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Hi Marco, On Mon, Jan 13, 2020 at 10:15:21AM +0100, Marco Felsch wrote: > The restart handler is executed during the shutdown phase which is > atomic/irq-less. The i2c framework supports atomic transfers since > commit 63b96983a5dd ("i2c: core: introduce callbacks for atomic > transfers") but unfortunately the regmap framework doesn't support it > yet. Hard coding the i2c stuff can be done without worries since the > DA9062 is an i2c-only device. > > Signed-off-by: Marco Felsch Reviewed-by: Stefan Lengfeld Thanks for picking up the patch and submitting it. Kind regards, Stefan