From patchwork Tue Mar 18 10:00:10 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chukun Pan X-Patchwork-Id: 14020743 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 299CBC282EC for ; Tue, 18 Mar 2025 10:07:38 +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:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Pjkzx95YrIHu1im/ERsuV/sJCTyvMl2w3ogiWL8ueNg=; b=SymfvaVxCiDQA6ONpYzgzr1Yaj 6c9fClN/by2H9I4D2IrtlX7L5nYoOZrHJhrcaKtiFAd6rbOORV1cgbzBd3idAxk5bqdkpwC6Y6yej UmfTE+oSbGfcxrhHS5w+m9uhveuX8HUrQwE8HBuxo8RXK9fGd/XlxK9Q6AoXEPr0hcnbiaTSpxPuF h7+2aLWYLehK7EMvDOAdyVyUaBbcdR62sz3P8tZQhdYkVb314bOknStwS8NQYe3OK+IquU110V0Bc GerxxE3xG/6iStwH3oL7YUhx+9fLEA7Cey2TKd6HWAfrGM+POqkvo7FhViSEhNfaIMuATyUI/8iuI +olv2Rkg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tuTr0-00000005QwZ-2SFO; Tue, 18 Mar 2025 10:07:22 +0000 Received: from mail-m49198.qiye.163.com ([45.254.49.198]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tuTkI-00000005Peb-2uHB; Tue, 18 Mar 2025 10:00:29 +0000 Received: from amadeus-Vostro-3710.lan (unknown [116.25.94.202]) by smtp.qiye.163.com (Hmail) with ESMTP id eac37608; Tue, 18 Mar 2025 18:00:21 +0800 (GMT+08:00) From: Chukun Pan To: Yao Zi Cc: Rob Herring , Jonas Karlman , Heiko Stuebner , Conor Dooley , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Chukun Pan Subject: [PATCH 3/3] arm64: dts: rockchip: Add UART DMA support for RK3528 Date: Tue, 18 Mar 2025 18:00:10 +0800 Message-Id: <20250318100010.2253408-4-amadeus@jmu.edu.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250318100010.2253408-1-amadeus@jmu.edu.cn> References: <20250318100010.2253408-1-amadeus@jmu.edu.cn> MIME-Version: 1.0 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWS1ZQUlXWQ8JGhUIEh9ZQVkaSU5KVkkeT0sdQ09PTh8fT1YeHw5VEwETFhoSFy QUDg9ZV1kYEgtZQVlKSk1VSU5VQk9VSUtJWVdZFhoPEhUdFFlBWU9LSFVKS0hKTkxOVUpLS1VKQk tLWQY+ X-HM-Tid: 0a95a8b26f5f03a2kunmeac37608 X-HM-MType: 10 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6MAg6HRw5TTJILksVKA4rGAgq MjEKFB5VSlVKTE9JSUJJS0lKQklIVTMWGhIXVRoWGh8eDgg7ERYOVR4fDlUYFUVZV1kSC1lBWUpK TVVJTlVCT1VJS0lZV1kIAVlBSUJKQzcG X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250318_030026_924287_011164AF X-CRM114-Status: UNSURE ( 8.04 ) 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 The UART ports on RK3528 have DMA capability, describe it. Flow control is optional, so dma-names are not added. Signed-off-by: Chukun Pan --- arch/arm64/boot/dts/rockchip/rk3528.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi index ad77e0ef70f2..1af0d036cf32 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi @@ -375,6 +375,7 @@ uart0: serial@ff9f0000 { clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 8>, <&dmac 9>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -386,6 +387,7 @@ uart1: serial@ff9f8000 { clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 10>, <&dmac 11>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -397,6 +399,7 @@ uart2: serial@ffa00000 { clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 12>, <&dmac 13>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -408,6 +411,7 @@ uart3: serial@ffa08000 { clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 14>, <&dmac 15>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -419,6 +423,7 @@ uart4: serial@ffa10000 { clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 16>, <&dmac 17>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -430,6 +435,7 @@ uart5: serial@ffa18000 { clocks = <&cru SCLK_UART5>, <&cru PCLK_UART5>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 18>, <&dmac 19>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -441,6 +447,7 @@ uart6: serial@ffa20000 { clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 20>, <&dmac 21>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -452,6 +459,7 @@ uart7: serial@ffa28000 { clocks = <&cru SCLK_UART7>, <&cru PCLK_UART7>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 22>, <&dmac 23>; reg-io-width = <4>; reg-shift = <2>; status = "disabled";