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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 A1D8DC2BA18 for ; Fri, 3 Apr 2020 05:29:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7739E206F5 for ; Fri, 3 Apr 2020 05:29:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="IGm/caGC"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Xi5KMTsZ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7739E206F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=9+MRT+MqdGi8enV50ofE6HctCaYA8+kVPTcydBse4sI=; b=IGm/caGC1PeTFh /7TPCyrlwWkDJSiB6ABUe9zv+jHV8zKsMkvB14dgmzOCL03/6JU9bF7jAjBpjlvcbNJ8gwGCbHAXx B7riTQDCXPLGKznlCD8kJBy5aCjc6BWsA01xqlc/VO2f7A3FuV2INYeCdlQXVMub1QwD+CTsXMPjb CAaBae9MUNYBS8pjxmbrLgJcQIWoTgHzV4ydYehUT6OzmhdksHy774BEkEOxHLLRmaA9qZb1zI+0d uOrl92WO6JUUzvMybxYaErdK2P+CrZhJKyKuXjW9LF6UwA81aOJi8mC1M1bp2NsC7ewjLWz+2z1Mw 06haiG6IaiBSd3RPv25w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jKEtT-000489-Ot; Fri, 03 Apr 2020 05:29:27 +0000 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jKEtM-00040f-BT for linux-mediatek@lists.infradead.org; Fri, 03 Apr 2020 05:29:22 +0000 Received: by mail-pf1-x444.google.com with SMTP id a13so2957057pfa.2 for ; Thu, 02 Apr 2020 22:29:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TWUVEWHfILYD4mLoLxiKPBxfXnp3kNrR0NuQf2K0ahQ=; b=Xi5KMTsZkOO7QTHFIZYuRuEr2Z/+6lNWa58ajHP5SQHleic4V+fa3OVt47Iv2/Ytlo AXpJAyiP3yJ3dlaDdpHDhDZFU6cTeYM5BpcgJRXE6fBovCc7bjdG4NRusRfkdLgkky0y VuKqJHgsxIvuagj4lAOrlp9zMnQUOMncAdPIA= 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=TWUVEWHfILYD4mLoLxiKPBxfXnp3kNrR0NuQf2K0ahQ=; b=WUnXlLcElC45lo7BUXHNzN11lGgNplgT7ZWjF9jYJiXP01i92xJhtskS9nqYMUppA0 hzRdLXG0wMsDIVLr64HVYwlUm3lbBIcL11Qxb19S3FVx9iGua5p0kr4EYveSP9VVYRRr SfsKcEKulb8ZB7iKNetCzmko8v0vdKZ18c4zDPF4Z/Mk+qqsTYEvKdbsJBk8p0ESM9yx O98I1YYxab6tMT7gRerw134btEpLFVIuqaA7YEtFfBla2fS3b0C+Jdqll+wtOD2JRtRU ulZK9dOOnLVRWgufr7UKeNfOKNdvCydBwywQ5tKTVH9tDMeoRpVqRwGHkzEYPacTpuNF 7uGw== X-Gm-Message-State: AGi0PubTvhGEQx/1abHLp544cafVJY+HvZHAOpDCbDWt+IVypFDgSMTO FpQWl6z1NgSbDt7OdooYo4PxzQ== X-Google-Smtp-Source: APiQypJwFGVlMhKNjzHxxikpLJzTjv9S0yp8wd3gigfUtQE9RxnY+jxENnaohkQ5QkAddaxMxtczTg== X-Received: by 2002:aa7:961c:: with SMTP id q28mr7020119pfg.177.1585891755586; Thu, 02 Apr 2020 22:29:15 -0700 (PDT) Received: from localhost ([2401:fa00:9:14:1105:3e8a:838d:e326]) by smtp.gmail.com with ESMTPSA id c21sm4451578pgn.84.2020.04.02.22.29.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 02 Apr 2020 22:29:15 -0700 (PDT) From: Evan Benn To: LKML Subject: [PATCH v2 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls. Date: Fri, 3 Apr 2020 16:28:58 +1100 Message-Id: <20200403052900.258855-1-evanbenn@chromium.org> X-Mailer: git-send-email 2.26.0.292.g33ef6b2f38-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200402_222920_423975_BAB847D4 X-CRM114-Status: GOOD ( 12.55 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Catalin Marinas , Bjorn Andersson , Manivannan Sadhasivam , Leonard Crestez , Will Deacon , xingyu.chen@amlogic.com, Rob Herring , Wim Van Sebroeck , Anson Huang , Mauro Carvalho Chehab , Marcin Juszkiewicz , Evan Benn , Valentin Schneider , Guenter Roeck , devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, Rob Herring , linux-mediatek@lists.infradead.org, Jonathan Cameron , Matthias Brugger , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Vinod Koul , Olof Johansson , jwerner@chromium.org, Shawn Guo , "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org This is currently supported in firmware deployed on oak, hana and elm mt8173 chromebook devices. The kernel driver is written to be a generic SMC watchdog driver. Arm Trusted Firmware upstreaming review: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/3405 Patch to add oak, hana, elm device tree: https://lore.kernel.org/linux-arm-kernel/20200110073730.213789-1-hsinyi@chromium.org/ I would like to add the device tree support after the above patch is accepted. Changes in v3: - Change name back to arm - Add optional get_timeleft op - change name to arm_smc_wdt Changes in v2: - Change name arm > mt8173 - use watchdog_stop_on_reboot - use watchdog_stop_on_unregister - use devm_watchdog_register_device - remove smcwd_shutdown, smcwd_remove - change error codes Evan Benn (1): dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog Julius Werner (1): watchdog: Add new arm_smd_wdt watchdog driver .../bindings/watchdog/arm-smc-wdt.yaml | 30 +++ MAINTAINERS | 7 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 13 ++ drivers/watchdog/Makefile | 1 + drivers/watchdog/arm_smc_wdt.c | 181 ++++++++++++++++++ 6 files changed, 233 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml create mode 100644 drivers/watchdog/arm_smc_wdt.c -- 2.26.0.292.g33ef6b2f38-goog _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek