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 B6789C54FC9 for ; Tue, 21 Apr 2020 11:05:53 +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 824C7206B9 for ; Tue, 21 Apr 2020 11:05:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iP73VBWI"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="h+1WGBmh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 824C7206B9 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=WNYVEq+4KKYPJZVt8CXYn1fs6/HF0WM4YKnqVVukj9U=; b=iP73VBWImRLZyM XKcJNF8HUOrQGqipwlBAGY5o9LH9ObuyN10LzP7/PtldWeC2GFyHniMMeCQvRQ2aZObRpalbNRzyq 31IDChqs0QLUwBIO0mybekGww4icLA9uvknEJ4g0sz4RtwSdevjA0GpZ2vUM5XTev6+NP1Pzp1dE8 qzuNZEh2kY2soHWKTOnVOdPMWFTYTfYyAu0qrHxKvuUNgsSnLzYdcru/CngFi443lCdN4MNUmbvrO 5VO3QvMNi9vlCHFWQ7LWI3/IsZgYoCHsYedNE+494jBS6w4KfKpCK0MqxRnybH5yIQX1LiUfW7DEI CX2Yjxy6RXXGM3NCaTEw==; 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 1jQqij-0001Zw-Du; Tue, 21 Apr 2020 11:05:41 +0000 Received: from mail-pg1-x544.google.com ([2607:f8b0:4864:20::544]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jQqig-0001Wy-6y for linux-mediatek@lists.infradead.org; Tue, 21 Apr 2020 11:05:39 +0000 Received: by mail-pg1-x544.google.com with SMTP id q18so3070621pgm.11 for ; Tue, 21 Apr 2020 04:05:36 -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=WvF21qmP3gF9P7JZJ1ONcszxypmYyGE19tvUhWUTsVs=; b=h+1WGBmhpgBtdaANZUwwMqTOtqCaHeP8LEw5UWv2vHgLHr/sm2q1g/zutfJc3XCFY5 2a426+CkciRwHnsNtSmp2IC36uhc193CxU8uvnyojGagWNbqLGXkCrqZycjGRJass4yv v08www/I7ltHOkci3lA0Ub2nYKge1VZpCKO3k= 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=WvF21qmP3gF9P7JZJ1ONcszxypmYyGE19tvUhWUTsVs=; b=qAhk5s3LjLDbEdSo9piMgIlHgYuUgcfvES/7WOYtmG/f0GircKwrpcgdx8ftQPn1Dl lRrfSKUcVOh/q0G13P6NkQMmF48qqvYdgZcr0S06RV60RITxh8R4V1GVRMoXVePM7aWr xnG5USHNyydJ1qVihZZLUzt3fWtEx2qwytPks5e+ggM4aiu/oEHps7sfjUcnE4z0FkHy hfDpxGp2Et2aMJUPcwRZTgtUBKQJy40mBJDPfVzrokXYk6LP96GABOaKF8nTV1d0pwoK BseCxZtMArFn3L7NtkHl2y49aTQCP6Yqbpc2R6o9xX+GQpkViIoIRTxfZG4D+Orn/9NL dh3g== X-Gm-Message-State: AGi0PuZBGSN6FUdbG203r2Y/F2F7oliVmfkbj/FuygFsG78m8GE7BEAJ egWyka6xjA1Xuj0R7JyfBIrEIg== X-Google-Smtp-Source: APiQypL4PFUwg5GwPRrSlb0y3fSgyECAShAITRonjEWPiB9jvTC9CBnU3LdyUl5Ks5ZaHOn5MmV5AA== X-Received: by 2002:a63:1d52:: with SMTP id d18mr20242532pgm.443.1587467136316; Tue, 21 Apr 2020 04:05:36 -0700 (PDT) Received: from localhost ([2401:fa00:9:14:1105:3e8a:838d:e326]) by smtp.gmail.com with ESMTPSA id j10sm2217695pfa.57.2020.04.21.04.05.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Apr 2020 04:05:35 -0700 (PDT) From: Evan Benn To: LKML Subject: [PATCH v2 0/2] Add a watchdog driver that uses ARM Secure Monitor Calls. Date: Tue, 21 Apr 2020 21:05:18 +1000 Message-Id: <20200421110520.197930-1-evanbenn@chromium.org> X-Mailer: git-send-email 2.26.1.301.g55bc3eb7cb9-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200421_040538_283065_7BBFB12A X-CRM114-Status: GOOD ( 11.66 ) 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: Geert Uytterhoeven , Catalin Marinas , Bjorn Andersson , Leonard Crestez , Will Deacon , xingyu.chen@amlogic.com, Rob Herring , 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, Matthias Brugger , Wim Van Sebroeck , linux-arm-kernel@lists.infradead.org, Greg Kroah-Hartman , Li Yang , 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 v4: - Add arm,smc-id property - Get smc-id from of property - Return a1 instead of a0 in timeleft 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_smc_wdt watchdog driver .../bindings/watchdog/arm-smc-wdt.yaml | 36 ++++ MAINTAINERS | 7 + arch/arm64/configs/defconfig | 1 + drivers/watchdog/Kconfig | 13 ++ drivers/watchdog/Makefile | 1 + drivers/watchdog/arm_smc_wdt.c | 194 ++++++++++++++++++ 6 files changed, 252 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml create mode 100644 drivers/watchdog/arm_smc_wdt.c -- 2.26.1.301.g55bc3eb7cb9-goog _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek