From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61D0816132A; Mon, 7 Oct 2024 06:58:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728284318; cv=none; b=liilcMLrbYVvmajjahfu8JANSzL90vCiV88H9s0NJ6R0HVaUkfndg5+4jjhb0l8XTLqMcqT1gQSXkInWmaJ/fYLziFlO9apgqN/ENPM5JfU+NYDKcKLt6SQQQfY+JtW1g+Xr+vLqI15K1zghbKo7xH68+2nzn/+5G5aQCLKp1Kg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728284318; c=relaxed/simple; bh=isXQOF8NNd+LF6dgeWDh48gbmjEZLy0AccRb2Pzp8vU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=dkNZ4XsOdkVDwIn05OZQXsQG2cX4u/WHoc0Zcxog8eetOKwIhAJLseO8A5CO7qsjF4DCdQRV2SdPPQJKSnNHPgB5qgBrftSltG6N1bqftia17onYtPWxAM/cqiIuWvQbo6COHrSHh0wdNS/rpG9ygn5KwvssLY2J2FZ8NLUq6Ms= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KnyhaoTD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KnyhaoTD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AA21C4CECF; Mon, 7 Oct 2024 06:58:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728284317; bh=isXQOF8NNd+LF6dgeWDh48gbmjEZLy0AccRb2Pzp8vU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=KnyhaoTDPps/mAFQs7sfWGgrfsptRXUg/UyQfJ+1rZm6jTq8A/DAHl17B6LjKZ8qY ooqQrchrjRWK+/g+NOVOJywkVbq/tch3J7k5XMo6ab20u/RrKqKRZHWob99SaqCOOX 9ZRuOzETL8HzJ86ZmHTxhzj+wVRxEPINFR+KWRy2iWP0ndpoV9j/yVn6VxLk7jRiBA 8Bx1cxqnMinnR1la5bP+ZiNfWVDt05SQXDvK5TYTgQ3T5/3c6XM/46nYaTP7AM5iFH Qc0jijNoEbVZYIYLf3N3fGxJ/H/AqwyoHQJJACTLTHP7SU8F0guQ1657GA+By+q9Np /Yy51/YTLEM6Q== Message-ID: <6bb599b4-141c-43a5-8b9f-4cf6ca6c3384@kernel.org> Date: Mon, 7 Oct 2024 08:58:28 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/4] dt-bindings: watchdog: aspeed: Add property for WDT SW reset To: Chin-Ting Kuo , patrick@stwcx.xyz, wim@linux-watchdog.org, linux@roeck-us.net, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joel@jms.id.au, andrew@codeconstruct.com.au, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org Cc: Peter.Yin@quantatw.com, Patrick_NC_Lin@wiwynn.com, Bonnie_Lo@wiwynn.com, DELPHINE_CHIU@wiwynn.com, BMC-SW@aspeedtech.com References: <20241007063408.2360874-1-chin-ting_kuo@aspeedtech.com> <20241007063408.2360874-2-chin-ting_kuo@aspeedtech.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 07/10/2024 08:34, Chin-Ting Kuo wrote: > Add "aspeed,restart-sw" property to distinguish normal WDT > reset from system restart triggered by SW consciously. > > Signed-off-by: Chin-Ting Kuo > --- > .../bindings/watchdog/aspeed,ast2400-wdt.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > index be78a9865584..6cc3604c295a 100644 > --- a/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > +++ b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > @@ -95,6 +95,17 @@ properties: > array with the first word defined using the AST2600_WDT_RESET1_* macros, > and the second word defined using the AST2600_WDT_RESET2_* macros. > > + aspeed,restart-sw: > + $ref: /schemas/types.yaml#/definitions/flag > + description: > Why >? > + Normally, ASPEED WDT reset may occur when system hangs or reboot > + triggered by SW consciously. However, system doesn't know whether the > + restart is triggered by SW consciously since the reset event flag is > + the same as normal WDT timeout reset. With this property, SW can So DTS has this property and watchdog bites (timeout) but you will ignore it and claim that it was software choice? This does not make much sense to me, at least based on this explanation > + restart the system immediately and directly without wait for WDT > + timeout occurs. The reset event flag is also different from the normal > + WDT reset. This property is only supported since AST2600 platform. Supported as drivers? How is this related? Or you mean hardware? Then property should be restricted there. Best regards, Krzysztof