From mboxrd@z Thu Jan  1 00:00:00 1970
From: Long Cheng <long.cheng@mediatek.com>
Subject: [PATCH v9 0/2] add uart DMA function
Date: Wed, 2 Jan 2019 10:12:56 +0800
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To: Vinod Koul <vkoul@kernel.org>, Randy Dunlap <rdunlap@infradead.org>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Ryder Lee <ryder.lee@mediatek.com>, Sean Wang <sean.wang@kernel.org>, Nicolas Boichat <drinkcat@chromium.org>
Cc: Zhenbao Liu <zhenbao.liu@mediatek.com>, devicetree@vger.kernel.org, YT Shen <yt.shen@mediatek.com>, srv_heupstream@mediatek.com, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Sean Wang <sean.wang@mediatek.com>, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Long Cheng <long.cheng@mediatek.com>, linux-mediatek@lists.infradead.org, linux-serial@vger.kernel.org, Jiri Slaby <jslaby@suse.com>, Matthias Brugger <matthias.bgg@gmail.com>, Yingjoe Chen <yingjoe.chen@mediatek.com>, Dan Williams <dan.j.williams@intel.com>, linux-arm-kernel@lists.infradead.org
List-Id: linux-mediatek@lists.infradead.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 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