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 X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF3A7C07E85 for ; Mon, 10 Dec 2018 02:57:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B8BE820831 for ; Mon, 10 Dec 2018 02:57:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B8BE820831 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726397AbeLJC5a (ORCPT ); Sun, 9 Dec 2018 21:57:30 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:24335 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726281AbeLJC5a (ORCPT ); Sun, 9 Dec 2018 21:57:30 -0500 X-UUID: 64b43507a35743ee86d964a2df632ef6-20181210 X-UUID: 64b43507a35743ee86d964a2df632ef6-20181210 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 36500749; Mon, 10 Dec 2018 10:57:20 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 10 Dec 2018 10:57:18 +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; Mon, 10 Dec 2018 10:57:17 +0800 From: Long Cheng To: Vinod Koul , Rob Herring , Mark Rutland CC: Matthias Brugger , Dan Williams , Greg Kroah-Hartman , Jiri Slaby , Sean Wang , Sean Wang , , , , , , , , Yingjoe Chen , YT Shen , Long Cheng Subject: [PATCH v4 0/2] add uart DMA function Date: Mon, 10 Dec 2018 10:57:14 +0800 Message-ID: <1544410636-31815-1-git-send-email-long.cheng@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: 9A69695E50D5CFF14A6F0B091121B587052F7917FA3DC11E96928D71536689B52000:8 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 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: mt2701: 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 -- 1.7.9.5