From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 958C8CA0EE8 for ; Wed, 17 Sep 2025 11:51:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3FCcXXM9l7ILpFzqFtjvNKikZTyNEREOH8NytkDV5b4=; b=4lmN6NqW5qs79XVWkV00o+mQeF FtU7TxbqZ9Hb8ky6X2+fcc3y/rCu3NfyN3CWmQ1YSZYg+Jj95Zcl/kFYbSu3SuOkTyRbJeTyPZ1WG TWnN0QCet/gEYKWJ/oAO4GpjQf8s/fUw2EGJ2kyuLvxsqNj9xZuZX6rVa8L12aIDjOcPK07Pf5WTG iu3qNbxCdUDR51ILWTk27E4WgxFQxX2iGlMV2bjghyhLVUdG87vDppod55OwuVTCTZq2DAU10i+ds iSiJlGr2nwA/RYMS3+zrQyof/eilgEi0lW+RrWyO1ZXDCcHr3z905wnrdAttp0JUaDq7EPOWCkbiq N2ecLZ5w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uyqhC-0000000BBa2-0xKl; Wed, 17 Sep 2025 11:51:34 +0000 Received: from mail1.nippynetworks.com ([91.220.24.129]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uyqh9-0000000BBXk-3G8S; Wed, 17 Sep 2025 11:51:33 +0000 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 4cRcYY3dbvzkd2w; Wed, 17 Sep 2025 12:51:29 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wildgooses.com; s=dkim; t=1758109889; 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=3FCcXXM9l7ILpFzqFtjvNKikZTyNEREOH8NytkDV5b4=; b=bi/dQE+5W/WC5AbtWSIh5zzd/w2Pv6MG4i27td2c5fN8P4GOIQFNGPb1RlByU73e2Ql7yO juSdNoFPCA18pmdrY0YHyA07bt4CIdBWLI/VdpFw9P+Xy8NqLh8qbCUJSgqpCglsy4OabM 3RLo56ROxq0sBj7TVFqlMx11y8fXFrI= 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 2/2] rockchip: dts: Enable UART DMA by adding default dma-names property Date: Wed, 17 Sep 2025 11:49:31 +0000 Message-ID: <20250917114932.25994-3-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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250917_045131_954115_426EAF79 X-CRM114-Status: UNSURE ( 9.62 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Kernel appears to need a dma-names set for DMA to actually enable. Set a default dma-names property for all UARTs defined in the base rk356x-base dtsi This is tested on a Radxa Zero 3W (which has 5x UARTs) and removes the warnings and enables DMA on this platform Signed-off-by: Ed Wildgoose --- arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi index fd2214b6f..55240f76d 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi @@ -1334,6 +1334,7 @@ uart1: serial@fe650000 { clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 2>, <&dmac0 3>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart1m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1348,6 +1349,7 @@ uart2: serial@fe660000 { clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 4>, <&dmac0 5>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart2m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1362,6 +1364,7 @@ uart3: serial@fe670000 { clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 6>, <&dmac0 7>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart3m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1376,6 +1379,7 @@ uart4: serial@fe680000 { clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 8>, <&dmac0 9>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart4m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1390,6 +1394,7 @@ uart5: serial@fe690000 { clocks = <&cru SCLK_UART5>, <&cru PCLK_UART5>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 10>, <&dmac0 11>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart5m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1404,6 +1409,7 @@ uart6: serial@fe6a0000 { clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 12>, <&dmac0 13>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart6m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1418,6 +1424,7 @@ uart7: serial@fe6b0000 { clocks = <&cru SCLK_UART7>, <&cru PCLK_UART7>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 14>, <&dmac0 15>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart7m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1432,6 +1439,7 @@ uart8: serial@fe6c0000 { clocks = <&cru SCLK_UART8>, <&cru PCLK_UART8>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 16>, <&dmac0 17>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart8m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; @@ -1446,6 +1454,7 @@ uart9: serial@fe6d0000 { clocks = <&cru SCLK_UART9>, <&cru PCLK_UART9>; clock-names = "baudclk", "apb_pclk"; dmas = <&dmac0 18>, <&dmac0 19>; + dma-names = "tx", "rx"; pinctrl-0 = <&uart9m0_xfer>; pinctrl-names = "default"; reg-io-width = <4>; -- 2.49.0