From patchwork Tue Dec 11 05:37:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Cheng X-Patchwork-Id: 10723081 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9A80417FE for ; Tue, 11 Dec 2018 05:38:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8AE372A2C0 for ; Tue, 11 Dec 2018 05:38:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7E0E529B02; Tue, 11 Dec 2018 05:38:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 368BC29B02 for ; Tue, 11 Dec 2018 05:38:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=cdVcLJFZNEOZjCr/VekfYxu8hMVtAAIJf26+sSZWgyc=; b=hwObMNFlm1UZej q+UwihxFF0tRcVjp3oDiqxeuwi/IxHjgojI/2hz9nXQCVC7uMFfe2sqSeV05AwdWHWoVFG44FeUS4 psrk7KQlW2jtEO0C7ljoqhB0i6CvkOVYtzMXgBoULskV7JruEsQCvfdn8YxE/o3aua8tLMAaaXq6Q YWuGbrHje9VBqxG9TQi8ekbkXyRwYKIwzJ2R1DmJJWzam8Iz+RVVsnAyTejgduRHpVUV77wUFc+OG PyQ++lHfz5tigDQNWzn9zGUkGfjaNt/nnZ522A/6/JBOCPPUyqpe9DJV2riutkSeuXAXDV50Wdsst m+HO4Z1ibWucI5BrhzjA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWakI-0007pm-9b; Tue, 11 Dec 2018 05:38:14 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWakF-0007ns-GE; Tue, 11 Dec 2018 05:38:12 +0000 X-UUID: c5bf67ea02a5448b899a485b0565e5ab-20181211 X-UUID: c5bf67ea02a5448b899a485b0565e5ab-20181211 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1755209803; Tue, 11 Dec 2018 13:37:52 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 11 Dec 2018 13:37:49 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 11 Dec 2018 13:37:48 +0800 From: Long Cheng To: Vinod Koul , Rob Herring , Mark Rutland , Ryder Lee Subject: [PATCH v5 0/2] add uart DMA function Date: Tue, 11 Dec 2018 13:37:23 +0800 Message-ID: <1544506645-27979-1-git-send-email-long.cheng@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-TM-SNTS-SMTP: F1B53AF904294C972B7BDD82D3FD6BBF1AD3A14DB688C1A509C0C6F61A16E2972000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181210_213811_665894_1689BE63 X-CRM114-Status: UNSURE ( 9.04 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Sean Wang , srv_heupstream@mediatek.com, Greg Kroah-Hartman , Sean Wang , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Long Cheng , linux-mediatek@lists.infradead.org, linux-serial@vger.kernel.org, Jiri Slaby , Matthias Brugger , Yingjoe Chen , Dan Williams , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP In Mediatek SOCs, the uart can support DMA function. Base on DMA engine formwork, we add the DMA code to support uart. And put the code under drivers/dma. This series contains document bindings, Kconfig to control the function enable or not, device tree including interrupt and dma device node, the code of UART DM Changes compared to v4: -modify Kconfig depends on. Changes compared to v3: -fix CONFIG_PM, will cause build fail Changes compared to v2: -remove unimportant parameters -instead of cookie, use APIs of virtual channel. -use of_dma_xlate_by_chan_id. Changes compared to v1: -mian revised file, 8250_mtk_dma.c --parameters renamed for standard --remove atomic operation Long Cheng (2): dmaengine: 8250_mtk_dma: add Mediatek uart DMA support arm: dts: mt2712: add uart APDMA to device tree arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 50 ++ drivers/dma/mediatek/8250_mtk_dma.c | 830 +++++++++++++++++++++++++++++ drivers/dma/mediatek/Kconfig | 11 + drivers/dma/mediatek/Makefile | 1 + 4 files changed, 892 insertions(+) create mode 100644 drivers/dma/mediatek/8250_mtk_dma.c