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,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 47E62C35242 for ; Fri, 14 Feb 2020 06:27:00 +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 17A0D2187F for ; Fri, 14 Feb 2020 06:27:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="A1UkxY9L"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="f3T6NdVH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 17A0D2187F 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-arm-kernel-bounces+infradead-linux-arm-kernel=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=fUbY9UK9G/4HPGzatNJwJFs8TbLAJDB7bxblOWwSh1Y=; b=A1UkxY9LcQx0e3 WonUZJO//M4VEFwjPSKuUqhAby6LPStH2xwN2RzUFMKIagtaDkvOtXTgeNUEa9cE/O67eEaosByxd 75lIIamLh7R+/DEWw1+9NNPUKYqJEZ8HoIoiL4vij97zIqEdo5mtcNresWyFM5KTaGczemlyQv4fi wjUBlBqNzBsX9ehIXhY0qyl4ceLezC0wHYztBsnr3ubLDppCP2aecjq2psF8DKt3dgmgzpCOX+YBG 23WY0oJPwIBENaxxalWTNN7aBs3vICZh18yP18ybWk6Zhs9fdHR1KreRY5jE7OXT9Jjle5QTYrSxS qqFq0RfdkulNZSzFKp5g==; 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 1j2URB-0002iF-Sm; Fri, 14 Feb 2020 06:26:53 +0000 Received: from mail-pj1-x1044.google.com ([2607:f8b0:4864:20::1044]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2UR8-0002hU-Hp for linux-arm-kernel@lists.infradead.org; Fri, 14 Feb 2020 06:26:52 +0000 Received: by mail-pj1-x1044.google.com with SMTP id q39so3507459pjc.0 for ; Thu, 13 Feb 2020 22:26:50 -0800 (PST) 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=eCrhZ74+BntL1ASmsZknwx81NOpQkF74lLsvD9sBub0=; b=f3T6NdVHZxNDFtYQX+iekyEp0Bj2gxg4PzjB4yrO524wQr2gUIHTtFAGcvT0x+wfxY xgHw8Oc7tgN48emrBRNtwlfgTheC5sPIifAvxhb1VHFp42qc5buBVrLVuqMTscO3BeVg gMN5M9wfjGBaooPpixSwRakGOYGWDa2gtcbaE= 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=eCrhZ74+BntL1ASmsZknwx81NOpQkF74lLsvD9sBub0=; b=cGa7lOiQ2gJ/i9Dmt4PFnL7R4jRnX/CxlkrYjo9Gevbha4BwGaAmSNd8bUSwB6PGRn ZQ4ch1pO/re0pv24IWEv1YRxgKYT7UeIpXitueinzR29entJ1sq/Giz6kM+nspc9u18g xvWDELiAC4npm7ZW50CqsKwq0uTZyrpH56jO3kvw9L1M+3jjxF1sDqEFHKKBCG76Hgwq 22NMyp159y8Lu4yrV8tfgmMaEMxn6n8+R4lRxIm7t/hOB3nSoKT5hDiV+1q7vny016w6 YNygk8RxBZBV1gha9O+SjdAdZgArcCo1LtY+7yGe3hIBegYKk7pKQB6fe85FXm2Rky5Z wxpA== X-Gm-Message-State: APjAAAUDY2pBq3j2tt6EJXVmftyGlSMl9Se5/ZOAbdeBO739ZQR5viRH d/Yn2sGl8fKtTCBjo2RvQzGRfA== X-Google-Smtp-Source: APXvYqyn5ehjzmo5Eos0aPWzc2ZSt6d7nE5vtqIbR/GyaAShL8VPgieCBvCjTwVgiNarWUm9OnDtxg== X-Received: by 2002:a17:90a:9dc3:: with SMTP id x3mr1620345pjv.45.1581661609563; Thu, 13 Feb 2020 22:26:49 -0800 (PST) Received: from localhost ([2401:fa00:9:14:1105:3e8a:838d:e326]) by smtp.gmail.com with ESMTPSA id o73sm4636778pje.7.2020.02.13.22.26.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 22:26:48 -0800 (PST) From: Evan Benn To: LKML Subject: [PATCH 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls. Date: Fri, 14 Feb 2020 17:26:35 +1100 Message-Id: <20200214062637.216209-1-evanbenn@chromium.org> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200213_222650_615658_5000DDC9 X-CRM114-Status: GOOD ( 12.98 ) X-BeenThere: linux-arm-kernel@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 , Mauro Carvalho Chehab , Leonard Crestez , Will Deacon , Rob Herring , Anson Huang , Marcin Juszkiewicz , =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= , Evan Benn , Guenter Roeck , devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, Rob Herring , Jonathan Cameron , Wim Van Sebroeck , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Dinh Nguyen , Olof Johansson , jwerner@chromium.org, Shawn Guo , "David S. Miller" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=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. Evan Benn (1): dt-bindings: watchdog: Add arm,smc-wdt watchdog arm,smc-wdt compatible Julius Werner (1): watchdog: Add new arm_smc_wdt watchdog driver .../bindings/watchdog/arm,smc-wdt.yaml | 30 +++ MAINTAINERS | 7 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 12 ++ drivers/watchdog/Makefile | 1 + drivers/watchdog/arm_smc_wdt.c | 191 ++++++++++++++++++ 6 files changed, 242 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/arm,smc-wdt.yaml create mode 100644 drivers/watchdog/arm_smc_wdt.c -- 2.25.0.265.gbab2e86ba0-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel