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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C84E1E81A31 for ; Mon, 16 Feb 2026 15:01:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fZ0BCqVUH5xPPVxomeaJKF0H4wRC7cRMGuNTgfAR7WI=; b=rp7NZHD4/CCsNTfESil8O0Nzy1 o9Jw0Ck8v50F0Vl4RRnxlyfPVF+FRUk8EGNoLW0oahqvAiPKTjjQrIHM9xyMqu3Akj4uxaGb+7grc JeH9gPLRd55LWyheyp579mgXkMCMDi7PfNMp40cyWN8fnTPm7XHUD2Q+cHy798pGV3BnqRXspW0to 8QWloyIUkIEyIzY2oWn1q41KD4iB+9CggEswxQd681p9n0T3dwIxcezssWVZyp73KU0boSS9syrQ0 I3jDYmYvOu0cwmly3rfyquBEtWuS4Wics0wu9LhfXtbdAXvST7+wxNaPLc2jwtCOKnhS8eY1z8W8w GLynpAXQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vs06O-00000006q7y-3q9e; Mon, 16 Feb 2026 15:01:32 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vs06K-00000006q6Q-3Zti; Mon, 16 Feb 2026 15:01:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=fZ0BCqVUH5xPPVxomeaJKF0H4wRC7cRMGuNTgfAR7WI=; b=w6PjxASXJb/jnKoq7U4mc7F09F M+xmz3gOYR7Ca1HJInWEsV5zH2bW7wTOmUURs8Iqd/CedefWZsl40Eml0ThMfyZS96rueKMgBG4zv Z3GYZTxYKJKEl1eD6d/vndPPB7BzF8znThFBD5KMyrGoWDlc50i6brFtlE32V91VSFrC/qEaiauFh LgDo4370TZ7ofHrDPYb31I8cSwTfqRp4vVCbBly/4F8zr87B0JN3GmwCfaL9Df0ReNWQYLYuZZ/ZA /dJjNkCQ+lPvU0WaSAfDlkFOELE+aN5C3/GsLc2AgZRHIp306ODXzaPchHtcOCqIKglF+c+m5/O7W GOxrcLrQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:47910) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vs05t-0000000073K-1oiw; Mon, 16 Feb 2026 15:01:01 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vs05p-000000000K6-2pxV; Mon, 16 Feb 2026 15:00:57 +0000 Date: Mon, 16 Feb 2026 15:00:57 +0000 From: "Russell King (Oracle)" To: Andrew Lunn Cc: Yao Zi , Heiko Stuebner , Heiner Kallweit , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , netdev@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: Re: Problematic understanding of phy-mode in Rockchip DWMAC driver Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260216_070129_185928_C75FA0B4 X-CRM114-Status: GOOD ( 15.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Feb 16, 2026 at 02:57:48AM +0100, Andrew Lunn wrote: > On Sat, Feb 14, 2026 at 07:02:08PM +0000, Russell King (Oracle) wrote: > > On Sat, Feb 14, 2026 at 05:50:15PM +0100, Andrew Lunn wrote: > > > Rockchip have recently started adding support for a new version, and > > > appear to of listened to what we have been saying. So it could be the > > > next generation of chips get this correct. > > > > Have you seen any proposed code from Rockchip for their new scheme? > > There was a patch, including a rather odd formulae to convert register > value to delay. I gave some feedback, but it has been silence > afterwards. Searching lore's netdev archive doesn't seem to bring anything up. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!