From mboxrd@z Thu Jan 1 00:00:00 1970 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 8891B2C3261; Wed, 17 Sep 2025 11:54:43 +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=1758110085; cv=none; b=VmLIQvRZdBsSOW6KaKHdWhno+DU0mzSSvc9nrM5/9SFvwwp+ganTMIs52zd6hFnkjRpH1NBXhb/gYhe1xWWt+LABUCPuSKxp5j46SfuMp+5amXyXyZMiQrl5hPFH1Xb7O2ABergbYUtTPImtOm8coLqJlHTwfZMpkykyum4lAwI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758110085; c=relaxed/simple; bh=denyi0t+iIrj1hhs1gcM+x4fviiNYp0SHlSGp5y6UzQ=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=UPv/k6noPQcs/OP+ROSNH80uDeFLqpfwEiOx/J1HlmPsqiMwJusNr0p2oAZBRQZwp14MnHfY8rh1x4Ib1C8GtsQHiedN/MupCQVIHEGCUNH+mTY2UvI2wwmnkBRQGEhVhkgiiC3NUVTrF8PTQJOvWY1ltfnsddSjQcL3CHSr1SA= 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=bmE4l/oz; 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="bmE4l/oz" 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 4cRcYC3FT0zkd2v; Wed, 17 Sep 2025 12:51:11 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wildgooses.com; s=dkim; t=1758109871; 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; bh=C3JLm+WtAgOBOP5ZX8TVm1Cp5vhXuI2GzWj1bb042eU=; b=bmE4l/oziTF0VmvvghpjBK3QAb49FXUE5rBADlKvSbHSr3lK9Wpj2rWXJ8iBGmy3m7olQU 1tGerj1aotI0U8cQOISRLXp4zBnrJL4kqT3AMXk2bzCUyqchkEbCgPRfsbL8xbvTI4RL6v KkSbE8V9DN8Vjuz9X0cjY3SrPsk68p0= 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 0/2] arm64: dts: rockchip: fix dma and pinctrl defs Date: Wed, 17 Sep 2025 11:49:29 +0000 Message-ID: <20250917114932.25994-1-lists@wildgooses.com> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The default pinctrl definitions for the Radxa Zero 3W don't match the datasheet. Possibly few people enable extra UARTs and hence it wasn't noticed? I needed all 5 UARTs for a project and the first patch corrects the pinctrl defs. Without this patch, enabling the extra UARTs causes issues such as the MMC devices disappearing, due to collisions. Second patch adds a dma-names property, which appears to be a pre-requisite for enabling DMA on the UARTs. I've applied this to the base rk356x-base.dtsi as it seems like a change that should apply to all SOMs? However, I confess ignorance in this area, so could I ask for a second opinion before anyone applies this? It's tested on my Zero 3W board and appears to function correctly and DMA is reported as enabled. Ed Wildgoose (2): arm64: dts: rockchip: correct uart mux for Radxa ZERO 3 rockchip: dts: Enable UART DMA by adding default dma-names property .../boot/dts/rockchip/rk3566-radxa-zero-3.dtsi | 15 +++++++++++++++ arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 9 +++++++++ 2 files changed, 24 insertions(+) -- 2.49.0