From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933266Ab3CSR0j (ORCPT ); Tue, 19 Mar 2013 13:26:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:28636 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932964Ab3CSR0h (ORCPT ); Tue, 19 Mar 2013 13:26:37 -0400 Message-ID: <51489FC2.40806@draigBrady.com> Date: Tue, 19 Mar 2013 17:26:26 +0000 From: =?ISO-8859-1?Q?P=E1draig_Brady?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 MIME-Version: 1.0 To: Guenter Roeck CC: linux-watchdog@vger.kernel.org, Wim Van Sebroeck , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/7] watchdog: w83627hf: Enable watchdog only once References: <1362957300-18223-1-git-send-email-linux@roeck-us.net> <1362957300-18223-3-git-send-email-linux@roeck-us.net> In-Reply-To: <1362957300-18223-3-git-send-email-linux@roeck-us.net> X-Enigmail-Version: 1.5.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/10/2013 11:14 PM, Guenter Roeck wrote: > It is unnecessary to enable the logical device and WDT0 each time > the watchdog is accessed. Do it only once during initialization. Is this also the case on systems where the superio chip is used for other things? I've the impression that this may break some systems (though I no longer have the hardware to test). Arbitration of multiple users of the superio device may be managed be a central user space app, or by a kernel level arbitrator. thanks, Pádraig.