From patchwork Thu Oct 29 02:39:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunyan Zhang X-Patchwork-Id: 311180 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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=no 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 E6DE7C4363A for ; Thu, 29 Oct 2020 02:40:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8AEE02076B for ; Thu, 29 Oct 2020 02:40:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="S0lBInDk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728610AbgJ2CkN (ORCPT ); Wed, 28 Oct 2020 22:40:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725883AbgJ2Cjl (ORCPT ); Wed, 28 Oct 2020 22:39:41 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80921C0613CF; Wed, 28 Oct 2020 19:39:41 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id t22so586646plr.9; Wed, 28 Oct 2020 19:39:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=dr2BluTtdmHH+Q1lAY7st7GEzyKQ390zItTf4RvlCZY=; b=S0lBInDkLvV+Ukf9zXVmro8DC9tWjX7aUr2J72GYIZ8rjGbYpLA6Jvj8xo1yi/wOBX T6nqZVSHlgO8vh6MzehMse9tgIH4mCaq0TVem/CbowDXZjvjtI5OMmoW+wHe9RQDBsl1 mmt/3eiiF3K7BhOk0OAZZmWFrgu5rKFi+GKyZnD1g2yOQvtUB38QkFIqSDsy6CFh/Gdz SZCC0KWGmom+eFjo+U/vWx1DlyGfE1MxC/Gm6HaFK1ExFrE9gQVcAHA+Zf3yJmz30aS5 JUK88QZfk5yv9NGXYFbT+9Yfvz6QHZh49eXDAyjT9Ay0PT1zrAhSEobkPkVuq+d09G/s ajTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=dr2BluTtdmHH+Q1lAY7st7GEzyKQ390zItTf4RvlCZY=; b=n/OsTsNd9kDyVycFxnH0JW2+EwHWPQ5z73f/m+FxVNSx8czDL2/bigGLuHTCzyJIiy qBS8zjXA4D9WWC6v9WykKupHYCWzhjvdczePEapFDs3jP8cPKLyU8wrFTJPUMXcM10fz qtIJGzjv0WsYYmMVnwsaXIdTih0sooZ4BI3SqREwvIzgcByehZd17GYSfwm814O2Y3Ba MjoghPEsakv+g/TgJ7t70DqyA/K5ZsMTPkzyevotZXnV1P2r7ITCYF+jGUDFhhH4qQ3z WV5PxnfV5z5u1hgWk0dAI0fQ/wM9b8nhG85/d8N5ydPsJr+rhgColvPVydrybzsZpVSt Meqg== X-Gm-Message-State: AOAM530jyQmfAtnJUiCo6ypVn/uHqDTUF5jeyd9uNAGyXMxvOxfJtTK3 n4u/Zqz8OlHsWD5o15mRghc/uBdxQFw8DQ== X-Google-Smtp-Source: ABdhPJwQjAyXPKt8m2X7EdmDP3/OKUlUFyLKL6avPIrYuhN05l1uNlJuY61Lk4Y1KGYMOsU9J36xqg== X-Received: by 2002:a17:902:7606:b029:d3:d2dd:2b3b with SMTP id k6-20020a1709027606b02900d3d2dd2b3bmr1820994pll.67.1603939181101; Wed, 28 Oct 2020 19:39:41 -0700 (PDT) Received: from ubt.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id kr14sm566260pjb.26.2020.10.28.19.39.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Oct 2020 19:39:40 -0700 (PDT) From: Chunyan Zhang To: Wim Van Sebroeck , Guenter Roeck Cc: linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org, Orson Zhai , Baolin Wang , Chunyan Zhang , Chunyan Zhang , Lingling Xu , Jingchao Ye , Xiaoqing Wu Subject: [PATCH v2 0/3] A few fixes to sprd watchdog driver Date: Thu, 29 Oct 2020 10:39:30 +0800 Message-Id: <20201029023933.24548-1-zhang.lyra@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org From: Chunyan Zhang A few issues about sprd watchdog driver were found recently, this patchset would fix them. Changes since v1: * Added Reviewed-by from Guenter Roeck; * Abandon original patch 2, add a new patch to use usleep_range() instead of busy loop; * Revised the max times of loop, also revised the comments for checking busy bit; * Revised commit message for the whole patchset; Chunyan Zhang (1): watchdog: sprd: change to use usleep_range() instead of busy loop Lingling Xu (2): watchdog: sprd: remove watchdog disable from resume fail path watchdog: sprd: check busy bit before new loading rather than after that drivers/watchdog/sprd_wdt.c | 42 ++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 22 deletions(-) Reviewed-by: Guenter Roeck