From nobody Tue Feb 10 08:01:06 2026 Received: from mta-64-228.siemens.flowmailer.net (mta-64-228.siemens.flowmailer.net [185.136.64.228]) (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 ECB422F5A13 for ; Wed, 7 Jan 2026 09:01:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.64.228 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767776480; cv=none; b=oWDkLLoCfVyHT938hg05iPc65Ke5wtrabw6RyC+UbF4m9f5/dKYq3Tu8C4+qfnQNwyUTmrCmIKppXnPYOKD7jkfht74vR6WksLWKCScYD3fg3JtAChGsHxFcShDWD4Dn9FdeDcz+rqR8RqVmlk6K3FkcAHbmiqz0kPj3H3nxl38= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767776480; c=relaxed/simple; bh=p8++y6MQ0PibTNjwnihWjjoGZPpoq9Q8KvsYsZkU4eA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dC+mkq0KJzGCIV9GnAa5HZEBCADcaL7g24Y4YqEBi4AxN4F7RU2o0LeCuU/RurTSBKMnMLpiHduvBcDoJ+XHZRpaN2oL1zoIS/HQ6FtHYbuOUVTl7uJ5MfoC/rljoObTvQYistWnV4iUiKq9hHw/etlg0xIGAlKaX7V/jeS10vI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (2048-bit key) header.d=siemens.com header.i=alexander.sverdlin@siemens.com header.b=fmd378yv; arc=none smtp.client-ip=185.136.64.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=siemens.com header.i=alexander.sverdlin@siemens.com header.b="fmd378yv" Received: by mta-64-228.siemens.flowmailer.net with ESMTPSA id 202601070900225bdde1270a00020700 for ; Wed, 07 Jan 2026 10:01:09 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=alexander.sverdlin@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=Rda0U2M+d4Z48hBPk6RZ/t3g/zhmVTZTN9fsWTD29HQ=; b=fmd378yvk3cEw7Fbj8Ga9Y+ANicWlNwXCj5yajl8CzWi8MyRZ7Ogo6nfJ/gDRx5Wc7Pnrb Fo2/1xFiIQKUSSEiiKDRnt1iB2fBk9AeGT65Oeud/cB+US0DKA7dYBH21ygv4psxN1rgvZTx RCaXW0wg9bqyFA4XgZPY0p18dGUCGn4etOVjNeu5Ajw1o2xk1FGio68MVx3k0hRISXLVOZb9 qwhyrQ9Fze9GIqd1/UY/QNfHYaevurk9TEDuZwKHAkGP4K3xgeachmIJqrbOYMdYu8A+MIf1 9PHSnxVynXZuSo+vSk7wHJ1NBYaYQyGG1gC7qqqtKuPu1Zk5cu6pPIxw==; From: "A. Sverdlin" To: netdev@vger.kernel.org Cc: Alexander Sverdlin , Hauke Mehrtens , Andrew Lunn , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Golle Subject: [PATCH net-next v4 1/2] dt-bindings: net: dsa: lantiq,gswip: add MaxLinear R(G)MII slew rate Date: Wed, 7 Jan 2026 10:00:16 +0100 Message-ID: <20260107090019.2257867-2-alexander.sverdlin@siemens.com> In-Reply-To: <20260107090019.2257867-1-alexander.sverdlin@siemens.com> References: <20260107090019.2257867-1-alexander.sverdlin@siemens.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-456497:519-21489:flowmailer Content-Type: text/plain; charset="utf-8" From: Alexander Sverdlin Add new maxlinear,slew-rate-txc and maxlinear,slew-rate-txd uint32 properties. The properties are only applicable for ports in R(G)MII mode and allow for slew rate reduction in comparison to "normal" default configuration with the purpose to reduce radiated emissions. Signed-off-by: Alexander Sverdlin --- Changelog: v4: - separate properties for TXD and TXC pads ("maxlinear," prefix re-appears) v3: - use [pinctrl] standard "slew-rate" property as suggested by Rob https://lore.kernel.org/all/20251219204324.GA3881969-robh@kernel.org/ v2: - unchanged .../devicetree/bindings/net/dsa/lantiq,gswip.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml b/= Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml index 205b683849a53..747106810cc17 100644 --- a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml +++ b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml @@ -106,6 +106,20 @@ patternProperties: unevaluatedProperties: false =20 properties: + maxlinear,slew-rate-txc: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + RMII/RGMII TX Clock Slew Rate: + 0: "Normal" + 1: "Slow" + maxlinear,slew-rate-txd: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + RMII/RGMII TX Non-Clock PAD Slew Rate: + 0: "Normal" + 1: "Slow" maxlinear,rmii-refclk-out: type: boolean description: --=20 2.52.0