From nobody Thu Oct 2 10:38:48 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 35DDF1C5486 for ; Thu, 18 Sep 2025 12:19:58 +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=1758197999; cv=none; b=VahbK3pqfU54MYKw3mnjD3hL1eblwMT883sBE2S+VptRGE2spQ9jyb40rZxmIqk0yFWPAsiHTz8jXclnfqCLhvXT99KHcyfGQA2RTFb82CS0s0p3+g20dkp563Cnk6oMrc1lvoL1FFAWVdrW8r2SOVjlfiYGbdBvoLT+8oKOfzw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758197999; c=relaxed/simple; bh=fGRUWSeNNcgeqcHRkuxbrMGDyokBFOMlHiqs3FwB0qs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=WGcsAMCuQ7F/gP6EIqZlfQM67dok2sIU+n6IOTkVLeRXWHc3I1LxkcRAwPxKCxr27DX7iNNrq0gWNTfMFr3hRBgqDBiTPbM+8JNw0CsXGIozh+qiWqpLFWdLjCVuvVkVV3GXUF9FfDYdaf3UyUdHYgMajh0kRDPDEQix/lMOa3o= 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 1uzDc7-0006mw-CD; Thu, 18 Sep 2025 14:19:51 +0200 From: Jonas Rebmann Date: Thu, 18 Sep 2025 14:19:44 +0200 Subject: [PATCH v2 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: <20250918-imx8mp-prt8ml-v2-1-3d84b4fe53de@pengutronix.de> References: <20250918-imx8mp-prt8ml-v2-0-3d84b4fe53de@pengutronix.de> In-Reply-To: <20250918-imx8mp-prt8ml-v2-0-3d84b4fe53de@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 X-Mailer: b4 0.15-dev-7abec X-Developer-Signature: v=1; a=openpgp-sha256; l=1177; i=jre@pengutronix.de; h=from:subject:message-id; bh=fGRUWSeNNcgeqcHRkuxbrMGDyokBFOMlHiqs3FwB0qs=; b=owGbwMvMwCV2ZcYT3onnbjcwnlZLYsg4/ePJrkCxDh6hXAdHxx22zupJIW+iUxpya/46RTQfr +u0UKzvKGVhEONikBVTZIlVk1MQMva/blZpFwszh5UJZAgDF6cATGTDR4Z/luKnlwbwz5fb5SOh e1Tnz7ZTM2f9W2miMmvFrPgnytPu2TEyLNvzs7Xl2NYFV//06C19WJVYvFAi10dd6nqkhkC5VCE nMwA= 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. Signed-off-by: Jonas Rebmann Acked-by: Vladimir Oltean Reviewed-by: Frank Li Reviewed-by: Rob Herring (Arm) --- 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 2.51.0.178.g2462961280