From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755893AbaIQPWx (ORCPT ); Wed, 17 Sep 2014 11:22:53 -0400 Received: from mail-wg0-f42.google.com ([74.125.82.42]:48142 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755877AbaIQPWv (ORCPT ); Wed, 17 Sep 2014 11:22:51 -0400 Message-ID: <1410967369.5542.2.camel@lp-lvrv.comap.cz> Subject: Re: [PATCH v2] watchdog: omap_wdt: Add 'early_disable' module parameter From: Rostislav Lisovy To: Guenter Roeck Cc: Wim Van Sebroeck , linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org, sojkam1@fel.cvut.cz, michal.vokac@comap.cz, Rostislav Lisovy Date: Wed, 17 Sep 2014 17:22:49 +0200 In-Reply-To: <20140916154921.GA14725@roeck-us.net> References: <1410877228-20925-1-git-send-email-lisovy@merica.cz> <20140916154921.GA14725@roeck-us.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Guenter; Thanks for the review. On Út, 2014-09-16 at 08:49 -0700, Guenter Roeck wrote: > How do you know that the watchdog was already running ? > Seems to me you are just making an assumption that it is running > without really knowing for sure. You are definitely right, however the OMAP Watchdog seems to be such a sophisticated piece of hardware that there is no possible way how to determine if it is running or not (sampling timer counter twice and comparing both values is they differ is stupid). Best regards; Rostislav