From nobody Thu Oct 2 13:03:46 2025 Received: from mail1.nippynetworks.com (mail1.nippynetworks.com [91.220.24.129]) (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 58D9A2D3A6A; Wed, 17 Sep 2025 11:51:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.220.24.129 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758109887; cv=none; b=r/vR7Ru9IOdsybg4DeUSAMOSkrAmA9lj+4ips4fM77Y6cLmnJ7IdlZDiweyCpq1oNGCkcMHa/P84z4whKHYj8CTESU4w4xq35EaNbI2uzpSqgRLnTg+Q8K533QeMJ6lJRHZSCGZmh029bNuM2liiy5BA5XnmjOqCE9pCZ/HkDKU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758109887; c=relaxed/simple; bh=0nohFhmKR9STftEE0DY+R/Mq89luR5NTFPyy97r3aJM=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PBr+tvYGQBDTxTgL3tp7w/ZMTQtFsL8PNOnb32uzDQV4wvEpu1rMLI26kGPLYRxQGu9LecD4VccP09KF11l/G8gxTtsT84+Y0nHMgtvs/aLvvbtkTWoCuSjSjzE4H2+cQAHOJRvO6AT4puvLtfBQ8GW+4td9i0trm5of+VMpRz8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=wildgooses.com; spf=pass smtp.mailfrom=wildgooses.com; dkim=pass (1024-bit key) header.d=wildgooses.com header.i=@wildgooses.com header.b=cAl2XOq+; arc=none smtp.client-ip=91.220.24.129 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=wildgooses.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wildgooses.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=wildgooses.com header.i=@wildgooses.com header.b="cAl2XOq+" Received: from grunt.nippynetworks.lan (unknown [94.228.36.46]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) (Authenticated sender: lists@wildgooses.com) by mail1.nippynetworks.com (Postfix) with ESMTPSA id 4cRcYR1NVHzkd2x; Wed, 17 Sep 2025 12:51:23 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wildgooses.com; s=dkim; t=1758109883; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/GxweiOVVTcEgVbzVlG+QY4Uckoc7fpLW+fnTNbNLkg=; b=cAl2XOq+1DTiWZUTOf9eSqTYc8ZrsOs3EmhV62esiHsvB8JkqJ7y3Yjifv2AoqHinHsYRR 1fqM28Ob/n7PS5IpdT4dHmk045b1EtTKwUmM6C3UwI4TNTbjzTdrlxhfCw1vDuDO4ZqM8U Xh0ncBjWaVNfo2OnS/eu76YQYoe5Mfc= From: Ed Wildgoose To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Ed Wildgoose , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] arm64: dts: rockchip: correct uart mux for Radxa ZERO 3 Date: Wed, 17 Sep 2025 11:49:30 +0000 Message-ID: <20250917114932.25994-2-lists@wildgooses.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250917114932.25994-1-lists@wildgooses.com> References: <20250917114932.25994-1-lists@wildgooses.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 Content-Type: text/plain; charset="utf-8" The rk3566 has multiplexed pins and the uarts can be moved to a choice of 2 pin groups. The default rk356x-base.dtsi appears to default to mux0 for all uarts, however, specific hardware might choose to implement alternatives The Radxa zero 3 shows that is uses M1 for uarts: - uart4 - uart5 - uart9 These aren't normally enabled, but we should at least correct the default pinctrl definitions. Without these changes there will be conflicts with mmc0/mmc1, leading to the SD or eMMC going missing. Signed-off-by: Ed Wildgoose --- .../boot/dts/rockchip/rk3566-radxa-zero-3.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3566-radxa-zero-3.dtsi b/arch/a= rm64/boot/dts/rockchip/rk3566-radxa-zero-3.dtsi index 1ee5d96a4..41b3c4403 100644 --- a/arch/arm64/boot/dts/rockchip/rk3566-radxa-zero-3.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3566-radxa-zero-3.dtsi @@ -492,6 +492,21 @@ &uart2 { status =3D "okay"; }; =20 +&uart4{ + pinctrl-names =3D "default"; + pinctrl-0 =3D <&uart4m1_xfer>; +}; + +&uart5 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&uart5m1_xfer>; +}; + +&uart9 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&uart9m1_xfer>; +}; + &usb_host0_xhci { status =3D "okay"; }; --=20 2.49.0