From nobody Thu Oct 2 03:22:58 2025 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (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 AD95B2874FA for ; Wed, 24 Sep 2025 08:34:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758702894; cv=none; b=jIiKfW9wqRnLjT5qE4vE5Ys9muJ7UE20psiOZzvzpDxkdi6UKlEVRx19P7/+sdTEdO5X7stiI5Pi+QYPCKPoEsqpYYDBu74zA32bJyntTBPzPaz5PtktNAgcPSMd0cXuoWME5enR1bNJXjdGeibhTt+6DMdKuFWCuLNnJalXA+A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758702894; c=relaxed/simple; bh=LBjy3XzRX+g+K5biGGKQclnmtSD7CAxE4QMEql4hRcQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=msXMQk9h6g+kaw6iIC07sDgCL3IatQhFGvoG688gJpdE4L5+qbFpz16q8ygB0LKdhj6rlHZlYuWS6EXqsz7DTnwAafkNxNtbPp00sgTAIorSdiTKlIyT7wIWst4sDk2D1HBzg+h4mn/vCELAiJTXCs2NBNs8dWQ5yO9Kv3t5FXs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1v1KxR-0006Aj-A5; Wed, 24 Sep 2025 10:34:37 +0200 From: Jonas Rebmann Date: Wed, 24 Sep 2025 10:34:12 +0200 Subject: [PATCH v3 1/3] dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250924-imx8mp-prt8ml-v3-1-f498d7f71a94@pengutronix.de> References: <20250924-imx8mp-prt8ml-v3-0-f498d7f71a94@pengutronix.de> In-Reply-To: <20250924-imx8mp-prt8ml-v3-0-f498d7f71a94@pengutronix.de> To: Andrew Lunn , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown , Shengjiu Wang , Shawn Guo , Sascha Hauer , Fabio Estevam , Pengutronix Kernel Team Cc: Vladimir Oltean , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Jonas Rebmann , Frank Li X-Mailer: b4 0.15-dev-7abec X-Developer-Signature: v=1; a=openpgp-sha256; l=1322; i=jre@pengutronix.de; h=from:subject:message-id; bh=LBjy3XzRX+g+K5biGGKQclnmtSD7CAxE4QMEql4hRcQ=; b=owGbwMvMwCV2ZcYT3onnbjcwnlZLYsi4vFZ6h2lV0qRN0/zXP7BQSlw9Ofid5NydT6d06DM36 B/wr9Je3lHKwiDGxSArpsgSqyanIGTsf92s0i4WZg4rE8gQBi5OAZiIJhMjw6XJlh6R/3aVqmsE RZRY/22vlpsjrTr5SZ93zAzOnO/yCxn+qfLd3H8g/kah6noONZfrZt3uR99d0+ee3DyXbfLneHk ZXgA= X-Developer-Key: i=jre@pengutronix.de; a=openpgp; fpr=0B7B750D5D3CD21B3B130DE8B61515E135CD49B5 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::ac X-SA-Exim-Mail-From: jre@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 Both the nxp,sja1105 and the nxp,sja1110 series feature an active-low reset pin, rendering reset-gpios a valid property for all of the nxp,sja1105 family. Acked-by: Vladimir Oltean Reviewed-by: Rob Herring (Arm) Reviewed-by: Frank Li Signed-off-by: Jonas Rebmann --- Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml b/D= ocumentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml index 9432565f4f5d..e9dd914b0734 100644 --- a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml +++ b/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml @@ -32,6 +32,15 @@ properties: reg: maxItems: 1 =20 + reset-gpios: + description: + A GPIO connected to the active-low RST_N pin of the SJA1105. Note th= at + reset of this chip is performed via SPI and the RST_N pin must be wi= red + to satisfy the power-up sequence documented in "SJA1105PQRS Applicat= ion + Hints" (AH1704) sec. 2.4.4. Connecting the SJA1105 RST_N pin to a GP= IO is + therefore discouraged. + maxItems: 1 + spi-cpha: true spi-cpol: true =20 --=20 2.51.0.297.gca2559c1d6