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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 3C5E3C072B1 for ; Tue, 28 May 2019 09:10:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F2F7208CB for ; Tue, 28 May 2019 09:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726831AbfE1JKI (ORCPT ); Tue, 28 May 2019 05:10:08 -0400 Received: from unicorn.mansr.com ([81.2.72.234]:58306 "EHLO unicorn.mansr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726645AbfE1JKI (ORCPT ); Tue, 28 May 2019 05:10:08 -0400 Received: by unicorn.mansr.com (Postfix, from userid 51770) id 1BCE715621; Tue, 28 May 2019 10:10:06 +0100 (BST) From: Mans Rullgard To: Wim Van Sebroeck , Guenter Roeck Cc: linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] watchdog: gpio: add support for nowayout option Date: Tue, 28 May 2019 10:09:47 +0100 Message-Id: <20190528090947.2610-1-mans@mansr.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for the nowayout option in the gpio watchdog driver. Signed-off-by: Mans Rullgard --- drivers/watchdog/gpio_wdt.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/watchdog/gpio_wdt.c b/drivers/watchdog/gpio_wdt.c index ea77cae03c9d..63792bb70213 100644 --- a/drivers/watchdog/gpio_wdt.c +++ b/drivers/watchdog/gpio_wdt.c @@ -17,6 +17,12 @@ #include #include +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + #define SOFT_TIMEOUT_MIN 1 #define SOFT_TIMEOUT_DEF 60 @@ -155,6 +161,7 @@ static int gpio_wdt_probe(struct platform_device *pdev) priv->wdd.timeout = SOFT_TIMEOUT_DEF; watchdog_init_timeout(&priv->wdd, 0, &pdev->dev); + watchdog_set_nowayout(&priv->wdd, nowayout); watchdog_stop_on_reboot(&priv->wdd); -- 2.21.0