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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80818C433EF for ; Wed, 23 Mar 2022 21:09:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344508AbiCWVKw (ORCPT ); Wed, 23 Mar 2022 17:10:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240886AbiCWVKt (ORCPT ); Wed, 23 Mar 2022 17:10:49 -0400 Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 926045F4E2; Wed, 23 Mar 2022 14:09:19 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 4A1F45C0209; Wed, 23 Mar 2022 17:09:16 -0400 (EDT) Received: from imap43 ([10.202.2.93]) by compute3.internal (MEProxy); Wed, 23 Mar 2022 17:09:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=cc:cc:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm1; bh=yMBJ76WhKgdMHhWkyFbX2/uDoE2hlT Hf5GOeRZgK5ic=; b=dhaFZfl+DscAC2FMO+Jye26iArtt8431/d1PK9ud15/4ik WHhjOf1jVFJv9QE6C9VmAbI4udK1nDp29i/Ddi2imbg31tNPJrG0dSPIvYFJDru8 zDEo8PN+jpIXXhYapSy1609oeiTZngS1FrOEsHMcoeYHzgy/trXLLW4PVOBsAeZ6 YJpbPMG0o0T2aeNpLpW3BKdJhceQvoDPALo/mu3F4Q43xPjjNGoM6VLIcb6dluzX CeR1bA4lxewbqqATw10r14CyZxQdbKamJw7Vz2gqKs1k3rIibNrvyM5/ehWOU6/e 3fMU7L+7wed0M9fBmfmx5DzBi1t1KbysBRZCVS0w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=yMBJ76WhKgdMHhWky FbX2/uDoE2hlTHf5GOeRZgK5ic=; b=SOwhAgCxCC4rimN2ZATdd5QSzALrlsuo9 NtVqIZZol/9MqWfbOhdiB7XG9g8SBBID18fuK3sQUs2BEivft6hXniZzpQVuJgOv 4hIrVy8PACR3nD7Mic3ax9uq3Fqy+YjMTVzyEM56/QnQre3+tVufqTF3xHE8GOjH pCJMoN+4XhkR0HgHzhzBKjR7msum01K5cUfnp7JXSK7jDzeqkeCdjfyYTVdNrQVm RDbTLk2qfuG1/zme/j3Y6MVYt7f+MLZYTvq6n/zqZHhmt3kxANhZ9fMH3wr/gDdZ AZMSq8sV9avCm2oCaCeL1oTz/yr7GcrrvAVC1BnytetZIKWPvlnBQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvvddrudegjedgudegiecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefofgggkfgjfhffhffvufgtsehttdertderredtnecuhfhrohhmpeetlhhi shhtrghirhcuoegrlhhishhtrghirhesrghlihhsthgrihhrvdefrdhmvgeqnecuggftrf grthhtvghrnhepueffkeevheejledtueevieekleekjefhjeehudfhtdfgtdfgjeejkedv veejveeunecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomh eprghlihhsthgrihhrsegrlhhishhtrghirhdvfedrmhgv X-ME-Proxy: Received: by mailuser.nyi.internal (Postfix, from userid 501) id 53AC8AC0E98; Wed, 23 Mar 2022 17:09:15 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.5.0-alpha0-4911-g925b585eab-fm-20220323.003-g925b585e Mime-Version: 1.0 Message-Id: <38779286-d176-4f2e-8908-d82bf8d60f07@www.fastmail.com> In-Reply-To: References: <20220323115752.360409-1-alistair@alistair23.me> Date: Thu, 24 Mar 2022 07:08:53 +1000 From: Alistair To: "Guenter Roeck" , shawnguo@kernel.org, linux-watchdog@vger.kernel.org, s.hauer@pengutronix.de, wim@linux-watchdog.org, "Linux Kernel Mailing List" , linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com, festevam@gmail.com, "Rob Herring" Subject: Re: [PATCH v4] watchdog: imx2_wdg: Allow ping on suspend Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 23 Mar 2022, at 11:07 PM, Guenter Roeck wrote: > On 3/23/22 04:57, Alistair Francis wrote: > > The i.MX watchdog cannot be disabled by software once it has been > > enabled. This means that it can't be stopped before suspend. > > > > For systems that enter low power mode this is fine, as the watchdog will > > be automatically stopped by hardware in low power mode. Not all i.MX > > platforms support low power mode in the mainline kernel. For example the > > i.MX7D does not enter low power mode and so will be rebooted 2 minutes > > after entering sleep states. > > > > This patch introduces a device tree property "fsl,ping-during-suspend" > > that can be used to enable ping on suspend support for these systems. > > > > Signed-off-by: Alistair Francis > > Reviewed-by: Guenter Roeck > > What is the difference to earlier versions ? Sorry, I should have included a changelog. I just fixed the spelling of alow/allow in the title Alistair > > Guenter > 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA3ABC433F5 for ; Wed, 23 Mar 2022 21:11:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:Cc:To:From:Date:References: In-Reply-To:Message-Id:Mime-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/k5W8fOFb3qd/NHxYQg4lsydUVWONlniswflSTM2MmE=; 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Wed, 23 Mar 2022 17:09:15 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.5.0-alpha0-4911-g925b585eab-fm-20220323.003-g925b585e Mime-Version: 1.0 Message-Id: <38779286-d176-4f2e-8908-d82bf8d60f07@www.fastmail.com> In-Reply-To: References: <20220323115752.360409-1-alistair@alistair23.me> Date: Thu, 24 Mar 2022 07:08:53 +1000 From: Alistair To: "Guenter Roeck" , shawnguo@kernel.org, linux-watchdog@vger.kernel.org, s.hauer@pengutronix.de, wim@linux-watchdog.org, "Linux Kernel Mailing List" , linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com, festevam@gmail.com, "Rob Herring" Subject: Re: [PATCH v4] watchdog: imx2_wdg: Allow ping on suspend X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220323_140920_431200_14E980F1 X-CRM114-Status: GOOD ( 16.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 23 Mar 2022, at 11:07 PM, Guenter Roeck wrote: > On 3/23/22 04:57, Alistair Francis wrote: > > The i.MX watchdog cannot be disabled by software once it has been > > enabled. This means that it can't be stopped before suspend. > > > > For systems that enter low power mode this is fine, as the watchdog will > > be automatically stopped by hardware in low power mode. Not all i.MX > > platforms support low power mode in the mainline kernel. For example the > > i.MX7D does not enter low power mode and so will be rebooted 2 minutes > > after entering sleep states. > > > > This patch introduces a device tree property "fsl,ping-during-suspend" > > that can be used to enable ping on suspend support for these systems. > > > > Signed-off-by: Alistair Francis > > Reviewed-by: Guenter Roeck > > What is the difference to earlier versions ? Sorry, I should have included a changelog. I just fixed the spelling of alow/allow in the title Alistair > > Guenter > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel