From patchwork Sat Jan 17 21:49:56 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sylvain Rochet X-Patchwork-Id: 5652511 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 272D7C058D for ; Sat, 17 Jan 2015 21:54:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5077C2037E for ; Sat, 17 Jan 2015 21:54:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 863612037D for ; Sat, 17 Jan 2015 21:54:05 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YCbGL-0003q6-8j; Sat, 17 Jan 2015 21:50:33 +0000 Received: from mx-guillaumet.finsecur.com ([91.217.234.131] helo=guillaumet.finsecur.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YCbGH-0003Gh-DY for linux-arm-kernel@lists.infradead.org; Sat, 17 Jan 2015 21:50:29 +0000 Received: from [172.16.8.13] (helo=spice.lan) by guillaumet.finsecur.com with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1YCbFq-0001BD-2u; Sat, 17 Jan 2015 22:50:03 +0100 Received: from gradator by spice.lan with local (Exim 4.84) (envelope-from ) id 1YCbFp-0005Lf-Pq; Sat, 17 Jan 2015 22:50:01 +0100 From: Sylvain Rochet To: Andrew Victor , Nicolas Ferre , Jean-Christophe Plagniol-Villard , boris.brezillon@free-electrons.com, voice.shen@atmel.com, alexandre.belloni@free-electrons.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Date: Sat, 17 Jan 2015 22:49:56 +0100 Message-Id: <1421531396-20188-1-git-send-email-sylvain.rochet@finsecur.com> X-Mailer: git-send-email 2.1.4 X-SA-Exim-Connect-IP: 172.16.8.13 X-SA-Exim-Mail-From: sylvain.rochet@finsecur.com X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Subject: [PATCH] AT91: DT: Watchdog, remove property idle halt by default X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on guillaumet.finsecur.com) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150117_135029_615133_FA80F619 X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: Sylvain Rochet X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The behavior changed when watchdog properties were added to DT, it makes the watchdog not counting when CPU is in idle state, therefore the watchdog reset time depend on mean CPU usage and will not reset at all if the CPU stop working while it is in idle state, which is a very weird behavior. Apply principle of least surprise on at91sam9260-wdt by removing idle halt flag by default. Signed-off-by: Sylvain Rochet Acked-by: Boris Brezillon --- arch/arm/boot/dts/at91sam9x5.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index bbb3ba6..ce61f91 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -1125,7 +1125,6 @@ atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt; - atmel,idle-halt; status = "disabled"; };