From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751421AbbEXRXe (ORCPT ); Sun, 24 May 2015 13:23:34 -0400 Received: from mail-ob0-f172.google.com ([209.85.214.172]:33990 "EHLO mail-ob0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751193AbbEXRXc (ORCPT ); Sun, 24 May 2015 13:23:32 -0400 MIME-Version: 1.0 In-Reply-To: <55620808.4030605@codeaurora.org> References: <=fu.wei@linaro.org> <1432197156-16947-1-git-send-email-fu.wei@linaro.org> <1432197156-16947-7-git-send-email-fu.wei@linaro.org> <555DFCD4.3040701@codeaurora.org> <5560D7AC.50009@codeaurora.org> <5560DCB6.3090008@roeck-us.net> <5561E7EA.5090702@codeaurora.org> <5561F8A8.4080607@codeaurora.org> <5561FC70.5080802@roeck-us.net> <5561FFF0.5090108@codeaurora.org> <55620808.4030605@codeaurora.org> Date: Mon, 25 May 2015 01:23:31 +0800 Message-ID: Subject: Re: [PATCH v2 6/7] Watchdog: introduce ARM SBSA watchdog driver From: Fu Wei To: Timur Tabi Cc: Guenter Roeck , Suravee Suthikulpanit , Linaro ACPI Mailman List , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Wei Fu , G Gregory , Al Stone , Hanjun Guo , Ashwin Chaugule , Arnd Bergmann , vgandhi@codeaurora.org, wim@iguana.be, Jon Masters , Leo Duran , Jon Corbet , Mark Rutland Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Timur, On 25 May 2015 at 01:19, Timur Tabi wrote: > Fu Wei wrote: >> >> I don't know why you want to do this tricky way. you can always >> register the interrupt handler, >> if pre-timeout is 0, system will just trigger WS1 right after WS0 > > > But that only works if the pre-timeout and timeout can be programmed to > separate values. And as Guenter says, the SBSA may not guarantee that. In my driver patch, the first stage, I am using WCV, for the second stage I am using WOR, that have been tested on real hardware. would you please read the pseudocode in Page 23 of SBSA 2.3 > > > -- > Sent by an employee of the Qualcomm Innovation Center, Inc. > The Qualcomm Innovation Center, Inc. is a member of the > Code Aurora Forum, hosted by The Linux Foundation. -- Best regards, Fu Wei Software Engineer Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch Ph: +86 21 61221326(direct) Ph: +86 186 2020 4684 (mobile) Room 1512, Regus One Corporate Avenue,Level 15, One Corporate Avenue,222 Hubin Road,Huangpu District, Shanghai,China 200021