From patchwork Fri Jan 18 03:10:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Cheng X-Patchwork-Id: 10769345 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 631576C2 for ; Fri, 18 Jan 2019 03:10:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 423842D6CA for ; Fri, 18 Jan 2019 03:10:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 332DD2D6E3; Fri, 18 Jan 2019 03:10:35 +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 95DC42D6CA for ; Fri, 18 Jan 2019 03:10:34 +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=kfwYGTyDym2MJ+NWwiBmTYXwtyZhxkdnIxgsaM6ZFXg=; b=LAXEFVJP7zr1yR HpL89qhrV/YI9OU0Bq9FF+D9pfkSs80Mu3pB8SQZYMFC/YExAG+D+gyWopxcvs+jXiFzMijooZO3D hG70TQhRolYrmRaHG3T9r/OYOpE01pZduuJWpPo5e6NZe+fobQn4sd1qQ+hXxKgSXnb5qtCV0Xfhi 0gAts3ixU19KsQ8gXDamaKKQBUPMD36ZXR6NPg9/28CQXPKJLyRd1VQL9bHzN/GwQqVt2gIaoAwU9 JuBH+6jSS4V49bNI3CHidssx/kkCWk5NmgdMlECAZJNyU5Yzq/VGapme39vVBg/UTw5HOK2/Oeat3 1Qn2KHJ7MEk1Ojp6tnMw==; 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 1gkKYD-0006Hc-K9; Fri, 18 Jan 2019 03:10:33 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gkKY9-0006Gc-BH; Fri, 18 Jan 2019 03:10:31 +0000 X-UUID: be229a61c21a4cd3bb414c8336d593e5-20190117 X-UUID: be229a61c21a4cd3bb414c8336d593e5-20190117 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1850079098; Thu, 17 Jan 2019 19:10:24 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 17 Jan 2019 19:10:22 -0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 18 Jan 2019 11:10:20 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 18 Jan 2019 11:10:18 +0800 From: Long Cheng To: Vinod Koul , Randy Dunlap , "Rob Herring" , Mark Rutland , Ryder Lee , Sean Wang , Nicolas Boichat Subject: [PATCH v10 0/3] add uart DMA function Date: Fri, 18 Jan 2019 11:10:13 +0800 Message-ID: <1547781016-890-1-git-send-email-long.cheng@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-TM-SNTS-SMTP: 009D2B9849D936A7FDD77529FA925E9C37B99D604CB49D71C0F7AFF64189B0222000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190117_191029_394020_DF397EDF X-CRM114-Status: GOOD ( 10.63 ) 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: Zhenbao Liu , devicetree@vger.kernel.org, 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/mediatek. 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 DMA Changes compared to v9 -rename dt-bindings file -remove direction from device_config -simplified code Changes compared to v8 -revise missing items Changes compared to v7: -modify apdma uart tx Changes compared to v6: -Correct spelling Changes compared to v5: -move 'requst irqs' to alloc channel -remove tasklet. 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 (3): dmaengine: 8250_mtk_dma: add MediaTek uart DMA support arm: dts: mt2712: add uart APDMA to device tree dt-bindings: dma: uart: rename binding .../devicetree/bindings/dma/8250_mtk_dma.txt | 33 - .../devicetree/bindings/dma/mtk-uart-apdma.txt | 33 + arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 51 ++ drivers/dma/mediatek/Kconfig | 11 + drivers/dma/mediatek/Makefile | 1 + drivers/dma/mediatek/mtk-uart-apdma.c | 669 ++++++++++++++++++++ 6 files changed, 765 insertions(+), 33 deletions(-) delete mode 100644 Documentation/devicetree/bindings/dma/8250_mtk_dma.txt create mode 100644 Documentation/devicetree/bindings/dma/mtk-uart-apdma.txt create mode 100644 drivers/dma/mediatek/mtk-uart-apdma.c