From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=74.125.82.178 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792460388; b=MRI/ZLu2SbIiaDAnG3g4TvbVgYN9dlID7xuPIjERH0hqdhoWBducly1OAwhoea3/X8zt d7NXIzYt9/AUFWGR7jqE5+pVstFuNVG2vcgvdWgmJAKJoH3cbK/c6pBI5SnbN/342QQyY T7HlPijqywN/iwuvQhW9iwb7mjmWEaj+IXhxYVV6ekK+xTPiZB+dJgfpXi9BlunoAgdAF bGd/lj2BNVmBqm99zPb/gy/NF2jAxDgkECteBdmXyen26l4JdKsB/bX/noqNwUWXEGquE JxcSFGZ9NG9iMnvcToX9YI3b/KrWZ7PrXLQ7JkahKFmPCt6qOW+nGBeIOb7x38Hi4+Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792460388; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Sender:Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; bh=RnAh5BgwbBUv22MFv8wV5yaYN/qwaGj857cNozmhPaE=; b=uv3U1XLAx5m/IkuCVCKLjHyf6OrZL1+nqhGxqmgDAeSDXa1KauluOnwCgUbtrrgA9sFs MChYulHwm1kx+ddedFtw52DuXc1qrumR533VY5DyoFqoDot4uEmi8VzDy3qraSY/2SiTx QblrW/+hfllHgzP6CWJR3IUGImwWG6q2eqQJAIgUZTMmnsfr3ySgB2T39yQNCPyu10vKZ 5jOfYBXwyeI2NvHYJzBtVXCs4egwULl+eN+57cnUHqk+ObEORrb+VN5kOCNcSxFKu0GcT us75bL0OiIyJkHs4D5iXgAG9YuZOmvxtRGPysdLRH11SF69bGjhcB8ltoRi82+C4fow== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=roeck-us.net; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=RkcZ5cU4; arc=none smtp.remote-ip=74.125.82.178 Received: from mail-dy1-f178.google.com (mail-dy1-f178.google.com [74.125.82.178]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 50EEC60A261A for ; Tue, 20 Oct 2026 01:39:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 50EEC60A261A Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=RkcZ5cU4 Received: by mail-dy1-f178.google.com with SMTP id 5a478bee46e88-3535bf8b3e0so5820113eec.0 for ; Mon, 19 Oct 2026 18:39:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1792460387; x=1793065187; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:sender:from:to:cc :subject:date:message-id:reply-to:content-type; bh=RnAh5BgwbBUv22MFv8wV5yaYN/qwaGj857cNozmhPaE=; b=RkcZ5cU4XWT+80H9xiHfw/ZuxBl6gyGBS8H5OG1Ui5ovV0ctyZ8z4qUpRFqR9Cw3xk cE1gBX1g/vACLt1CLIrwHL8EmS5VeFqqrm0ueJiNdaRG5pmtJcXR9T0nI7/4wPFmx2Fc P6NuIHhpjNjq4DlS4dHIFp7F86kFVhySspEVGioyhs5SYNt0R0L1G+hf/6crdY5kskpr nh2IfgchMcIyBNiXQy8wSrHaA5HKlohWQIHEC0fRwpOhVMISs9wo+dk/5Oz2XD2EB5Cq WKb0vsQRYsDrrlm5Uw96Kk4QP2RpxUG/EAN5jYsQhxtaIKcG4NpiN9GSXndRffebXt6E 7YOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792460387; x=1793065187; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:sender:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=RnAh5BgwbBUv22MFv8wV5yaYN/qwaGj857cNozmhPaE=; b=WncNDrx0kwwVpubfVcmsCOWZeOEK4e0jnyd/nrG7IDZmd6JOwN5HBUJ5NnfQHcMgL7 MOdm3LRcBBPRWB4g83Utal7cDUAUPVVYiPGUrv8ExI7RDh3EsQl9yQPZIwktZXE7LdJx 3L2jgMSKmVphTA9ZAJp4OaenzZrvZkpM2SZ7HzFhftDsvi6s+CfFhm3Lksqsh6oOTB9U nlLdaO0t/U8nNlNBq+AGVjEpbHbwuXGIs40OS7t/cI0174ywKlh7PbCXs2r3WH+cbAIY X2O4Py3d1w1x1oPqelOb9we22E4HYwMv2e9gjCxQjkB0xnD6ChoBY6jQIN3Kpax77cDX +oeQ== X-Forwarded-Encrypted: i=1; AKwUvBwAOaLCLyLQBkS34PwW+TV+T8UUuD9w/GsDz6NGwaUEuoAWgzxYh8wFEBb5A4ETFp3EvA90JDhnqYYBq5s=@vger.kernel.org X-Gm-Message-State: AFq9FYI6Y4mVa70Y8zZt9tPgu0XGYyS2rb9FLGQvcAdccHHg25B8ZYx8 C31q32oNAADzqILCxDrGPEpu8e1xQCZOAsEBgdncGc8lP7lJlBR5arW7 X-Gm-Gg: AYBFou2uYDa4VNF72xsYN6zuryJJnrWzfKWJZ4KVSNFnpPfuh7MTFE/a5dJ2ulpp8ux yXssEWBiGUHK7K5ycd/pwrWfGFtWpcUf2VBSLigD7qqK4ICph/0xrOG8wCKvexdJ3tfIEzWQx1p E1N6t9rFt9b0BG3ZmWJ7B+/+9jFv81xBjlVjHtgFYCW6gA1HibVbE8QSUZxxFUk/RkgTVjlqlmD 23TMh9dmOl30XyDgSMSmwzdAVU6YUvlfB5yPEVbBoFiTV2ynKZUCc7z6ert3h92s3yvVHwtvsww rq13vVRJq0fMGHXKSPBisMhb9QGxuGYnwE5AETLwmDF5HYIomNP3baSPH21Okkj0ELZ4c05DzUA lePvwS9RjchD1dXNlwpuQquDN7gGcQhUZltAcieC7M1Pd3U9DCJXBJfSJ2JAKG6Lk15A/yHDxo7 wAMeLRwbg6DRG77qURyoTS0CoXu6jIgmknikzh01DLCUkbLly5QcVh7Mcfaq4L+tjCoGvM9NYHZ aA4MpdPUl2N X-Received: by 2002:a05:7300:7a99:b0:358:f678:46b6 with SMTP id 5a478bee46e88-361a2343165mr14073141eec.22.1792460386817; Mon, 19 Oct 2026 18:39:46 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3608258aa66sm45216643eec.20.2026.10.19.18.39.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Oct 2026 18:39:46 -0700 (PDT) Sender: Guenter Roeck Date: Mon, 19 Oct 2026 18:39:45 -0700 From: Guenter Roeck To: Florian Fainelli Cc: linux-mips@vger.kernel.org, Wim Van Sebroeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thomas Bogendoerfer , Dmitry Torokhov , Bartosz Golaszewski , Jakub Kicinski , Andrew Lunn , Ethan Nelson-Moore , Eric Biggers , Greg Kroah-Hartman , Mingyu Wang <25181214217@stu.xidian.edu.cn>, Robert Marko , "open list:WATCHDOG DEVICE DRIVERS" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list , manuel.lauss@gmail.com Subject: Re: [PATCH 3/5] watchdog: gpio: Support watchdogs with a minimum heartbeat interval Message-ID: References: <20261016221617.2223004-1-f.fainelli@gmail.com> <20261016221617.2223004-4-f.fainelli@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261016221617.2223004-4-f.fainelli@gmail.com> On Fri, Oct 16, 2026 at 03:16:15PM -0700, Florian Fainelli wrote: > Read the optional hw-min-interval-ms property into min_hw_heartbeat_ms so > the watchdog core defers keepalives that would toggle the GPIO too soon. > Reject zero intervals and intervals at or above the hardware margin. > Devices without the property retain their existing behavior. > > Remove the arbitrary 65535 ms upper bound on hw_margin_ms as well. There > is no register width to constrain this software interval, and the MTX-1 > watchdog needs a larger margin with a 1600 ms minimum ping interval. > > Signed-off-by: Florian Fainelli Applied. Thanks, Guenter