From mboxrd@z Thu Jan 1 00:00:00 1970 From: Long Cheng Subject: [PATCH v8 0/2] add uart DMA function Date: Sat, 29 Dec 2018 18:30:21 +0800 Message-ID: <1546079423-8361-1-git-send-email-long.cheng@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Vinod Koul , Randy Dunlap , Rob Herring , Mark Rutland , Ryder Lee , Sean Wang , Nicolas Boichat Cc: Matthias Brugger , Dan Williams , Greg Kroah-Hartman , Jiri Slaby , Sean Wang , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, srv_heupstream@mediatek.com, Yingjoe Chen , YT Shen , Zhenbao Liu , Long Cheng List-Id: linux-serial@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 DMA 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 (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 | 694 +++++++++++++++++++++++++++++ drivers/dma/mediatek/Kconfig | 11 + drivers/dma/mediatek/Makefile | 1 + 4 files changed, 756 insertions(+) create mode 100644 drivers/dma/mediatek/8250_mtk_dma.c -- 1.7.9.5