From nobody Fri Dec 19 05:01:40 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 042A6EDE98A for ; Thu, 14 Sep 2023 07:51:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235916AbjINHvm (ORCPT ); Thu, 14 Sep 2023 03:51:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235889AbjINHvk (ORCPT ); Thu, 14 Sep 2023 03:51:40 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7F5A1FC6 for ; Thu, 14 Sep 2023 00:51:35 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qgh82-0001Gv-Bd; Thu, 14 Sep 2023 09:51:10 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qgh80-006FdB-Pl; Thu, 14 Sep 2023 09:51:08 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1qgh80-009P5Y-22; Thu, 14 Sep 2023 09:51:08 +0200 From: Oleksij Rempel To: "David S. Miller" , Andrew Lunn , Eric Dumazet , Florian Fainelli , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Woojung Huh , Arun Ramadoss , Conor Dooley , Krzysztof Kozlowski , Rob Herring Cc: Oleksij Rempel , Rob Herring , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com, "Russell King (Oracle)" , devicetree@vger.kernel.org Subject: [PATCH net-next v5 1/2] dt-bindings: net: dsa: microchip: Update ksz device tree bindings for drive strength Date: Thu, 14 Sep 2023 09:51:06 +0200 Message-Id: <20230914075107.2239886-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230914075107.2239886-1-o.rempel@pengutronix.de> References: <20230914075107.2239886-1-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Extend device tree bindings to support drive strength configuration for the ksz* switches. Introduced properties: - microchip,hi-drive-strength-microamp: Controls the drive strength for high-speed interfaces like GMII/RGMII and more. - microchip,lo-drive-strength-microamp: Governs the drive strength for low-speed interfaces such as LEDs, PME_N, and others. - microchip,io-drive-strength-microamp: Controls the drive strength for for undocumented Pads on KSZ88xx variants. Signed-off-by: Oleksij Rempel Reviewed-by: Rob Herring Reviewed-by: Andrew Lunn Reviewed-by: Vladimir Oltean --- .../bindings/net/dsa/microchip,ksz.yaml | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml b= /Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml index 03b5567be389..41014f5c01c4 100644 --- a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml +++ b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml @@ -49,6 +49,26 @@ properties: Set if the output SYNCLKO clock should be disabled. Do not mix with microchip,synclko-125. =20 + microchip,io-drive-strength-microamp: + description: + IO Pad Drive Strength + enum: [8000, 16000] + default: 16000 + + microchip,hi-drive-strength-microamp: + description: + High Speed Drive Strength. Controls drive strength of GMII / RGMII / + MII / RMII (except TX_CLK/REFCLKI, COL and CRS) and CLKO_25_125 line= s. + enum: [2000, 4000, 8000, 12000, 16000, 20000, 24000, 28000] + default: 24000 + + microchip,lo-drive-strength-microamp: + description: + Low Speed Drive Strength. Controls drive strength of TX_CLK / REFCLK= I, + COL, CRS, LEDs, PME_N, NTRP_N, SDO and SDI/SDA/MDIO lines. + enum: [2000, 4000, 8000, 12000, 16000, 20000, 24000, 28000] + default: 8000 + interrupts: maxItems: 1 =20 --=20 2.39.2