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_PASS,USER_AGENT_GIT autolearn=ham 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 4D813C43387 for ; Mon, 17 Dec 2018 19:33:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 274B22084A for ; Mon, 17 Dec 2018 19:33:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388332AbeLQTdV (ORCPT ); Mon, 17 Dec 2018 14:33:21 -0500 Received: from sauhun.de ([88.99.104.3]:40514 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727116AbeLQTdV (ORCPT ); Mon, 17 Dec 2018 14:33:21 -0500 Received: from localhost (p54B3357B.dip0.t-ipconnect.de [84.179.53.123]) by pokefinder.org (Postfix) with ESMTPSA id 81A982E3656; Mon, 17 Dec 2018 20:33:19 +0100 (CET) From: Wolfram Sang To: linux-watchdog@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Wim Van Sebroeck , Wolfram Sang Subject: [PATCH] watchdog: add documentation for PM usage Date: Mon, 17 Dec 2018 20:33:14 +0100 Message-Id: <20181217193314.3487-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add the first rule we recently agreed on. Signed-off-by: Wolfram Sang --- Documentation/watchdog/watchdog-pm.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/watchdog/watchdog-pm.txt diff --git a/Documentation/watchdog/watchdog-pm.txt b/Documentation/watchdog/watchdog-pm.txt new file mode 100644 index 000000000000..7a4dd46e0d24 --- /dev/null +++ b/Documentation/watchdog/watchdog-pm.txt @@ -0,0 +1,19 @@ +The Linux WatchDog Timer Power Management Guide +=============================================== +Last reviewed: 17-Dec-2018 + +Wolfram Sang + +Introduction +------------ +This document states rules about watchdog devices and their power management +handling to ensure a uniform behaviour for Linux systems. + + +Ping on resume +-------------- +On resume, a watchdog timer shall be reset to its selected value to give +userspace enough time to resume. [1] [2] + +[1] https://patchwork.kernel.org/patch/10252209/ +[2] https://patchwork.kernel.org/patch/10711625/ -- 2.19.1