From nobody Thu Oct 2 10:53:50 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 7CA4C279917; Thu, 18 Sep 2025 09:33:01 +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=1758187983; cv=none; b=YvH7YpMQSjSSGKohhaC69exmkvCUw3w/rkuJUGcNeiqcFZvkvo20qcx7du+PB4jYp2dzW9cCOG74tQxqc3+3uKifJXKsY+ERSIwUy4v8Mwrbi/SA5J1luy9qoA3w6IEfQ6j5bhgVx/CA/IygSBTGOCAyMwBNNv1zyGM97UktcMA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758187983; c=relaxed/simple; bh=LjbtIFM90rT95XDfHcXPn4nptBTM4lxUohcJ1ppBJIM=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MQwprcPRt9VzMmDfYz4rbqLp+4GyYB0x5yZ5+gJESMmmobr5JMuQFpmOX44bYn5WfTjXq99hv/VjtBWTcrzb8yOgYbpKlgZ0mdF8x271TR5PhjWkF/Mz9W3UG1FYVTu5UzXA5j+R2JeXoR03b07quFE7QcFxbmVu9xpxbIJ8Ysc= 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=fHfF/Voh; 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="fHfF/Voh" 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 4cS9RH2cB5zkd2w; Thu, 18 Sep 2025 10:32:59 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wildgooses.com; s=dkim; t=1758187979; 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=FlAhNQnQgMFhDX0TaNHAvXo7GKBKzvZkP4Sin8ddCUI=; b=fHfF/VohcPLZ9ODrckry6N2rM/r2IHJ6cGVfD34oD6Syoa+QZJ1xJxAABjH/JIwaAPVU9a lVLIIbGtLJQlT0Aj2xF8ZkHosc0Xx1lBldvIn6MTVbPgy5FkJbsim2tekDvqlK8er7oIlt i1PzL9L/zgckS6kzI11Q/vzG/QxynsM= 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: Thu, 18 Sep 2025 09:32:45 +0000 Message-ID: <20250918093246.15623-2-lists@wildgooses.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250918093246.15623-1-lists@wildgooses.com> References: <20250917114932.25994-1-lists@wildgooses.com> <20250918093246.15623-1-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..e644bfc9c 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