From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=156.67.10.101 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793893654; b=3OqgoicLDW5sdGcc2FN3Jgvk8nm1vKD3uUuWzu94eazQaLZMuLImZfQX9o73I1//BC+a lyXQhGeevfCXi/J71sjTLBUCcbWQfDyRl3qgJFCXDs72MrsgbUyKK+pEXFxwIAOs7wHhv qXo6zMyBUuPWlJIpfMIAPo096bgSnN6GNCsLkhxnntk1fku+y1fqTO38XzxHfVLM/l41N HIjAikcaFuX3o+7HjIOPdUx+iTmDGqvjWj0vYiUAla0ftEIhGuEQV9dVp5MxQT1Oxik/C l1gcwH0wHuzznECNavuLPne2vCyjZj3hZ5V2WXq8RZVrDW5ukV87u6iG1pOzKhIvJHg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793893654; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=uKgCwPx0XcVlKQatI7uQ08zv+nNRGJomiJbLaZj7TUg=; b=BdmU8K/Bt1Jn8bOKmCf0SgRHziH3cM/yd1mEgNFtQnVEqaz66/tgKin4OqrwLX7ckrA9 cyRZdy+0t0C0h8ncHhgQRq9HZTWtVMraQGbpvBdwbBVqHyK+kSIlthYoXX4iAg7kRtASD V+ci4+Jx3E64XkAOjFADyj14/fZsS1Jz57lk9U8Z4SBALjvVSp8Pqwo4No4k2Q8oRPklj na38dEnFt07DTa8nac6BPL9v96gwnCyGviHKvJqjWyQzBbBa1eHCBtHSkJ5nLljw97Bn1 mZeGyXkCTauRigusQq3+md11MUyH8Q7qX17KxofzCS7K08cDSa1svJ+Qh3+ZEYNbjdg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=Ceyf4Xm5; arc=none smtp.remote-ip=156.67.10.101 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B737B6082BFF; Thu, 5 Nov 2026 15:47:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org B737B6082BFF Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=lunn.ch header.i=@lunn.ch header.a=rsa-sha256 header.s=20171124 header.b=Ceyf4Xm5 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=uKgCwPx0XcVlKQatI7uQ08zv+nNRGJomiJbLaZj7TUg=; b=Ceyf4Xm52NX4OwB72Ect2eiM7X 1cEqc5wfLUp+UwbStmw7W94MMj2xX13JYiLLorkfN0fR+GhozHAGoPdi+DgbQ9OMRkg6JxXq4D7Ls EL8ryhx0XKBwFa7SNFMLfLXQ30fKrjmBG76UpjTsnfWNXeR6GFS1HfZvfr78O8vJkxKw=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1xOzgG-00EbAL-VP; Thu, 05 Nov 2026 16:47:12 +0100 Date: Thu, 5 Nov 2026 16:47:12 +0100 From: Andrew Lunn To: Lucas Tanure Cc: xianwei.zhao@amlogic.com, Andrew Lunn , davem@davemloft.net, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Maxime Chevallier , Maxime Coquelin , Alexandre Torgue , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 4/7] net: stmmac: dwmac-meson8b: follow the generic RGMII delay rules on the T7 Message-ID: References: <20261103163715.385394-1-tanure@linux.com> <20261103163715.385394-5-tanure@linux.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: <20261103163715.385394-5-tanure@linux.com> On Tue, Nov 03, 2026 at 04:37:12PM +0000, Lucas Tanure wrote: > The delay code reads phy-mode as the list of delays this glue has to > add, falls back to a 2ns transmit delay when no property asks for one, > and takes the vendor delay properties. ethernet-controller.yaml says > the opposite: the PHY adds the 2ns delays, and the MAC properties only > hold small fine tuning added on top. Every board in the tree depends on > the old reading, so it stays as it is. > > No T7 board uses this glue yet, so the T7 gets a path of its own that > follows the generic rules: the receive delay line is fine tuning in > 200ps steps, and the transmit side, a quarter-period phase step, offers > none, so the transmit property is refused. > > Assisted-by: LLM > Signed-off-by: Lucas Tanure Reviewed-by: Andrew Lunn Andrew