linux-kernel - [PATCH v2 0/4] add uart DMA function

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Message-ID: <1543999380-7946-1-git-send-email-long.cheng@mediatek.com>
Date:   Wed, 5 Dec 2018 16:42:56 +0800
From:   Long Cheng <long.cheng@...iatek.com>
To:     Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
CC:     Matthias Brugger <matthias.bgg@...il.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Long Cheng <long.cheng@...iatek.com>,
        <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-serial@...r.kernel.org>,
        <srv_heupstream@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        YT Shen <yt.shen@...iatek.com>
Subject: [PATCH v2 0/4] add uart DMA function 

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 v1:
-mian revised file, 8250_mtk_dma.c
--parameters renamed for standard
--remove atomic operation

Long Cheng (4):
  dt-bindings: dma: uart: add uart dma bindings
  dmaengine: mtk_uart_dma: add Mediatek uart DMA support
  serial: 8250-mtk: add uart DMA support
  arm: dts: mt2701: add uart APDMA to device tree

 .../devicetree/bindings/dma/8250_mtk_dma.txt       |   33 +
 arch/arm64/boot/dts/mediatek/mt2712e.dtsi          |   50 ++
 drivers/dma/mediatek/8250_mtk_dma.c                |  894 ++++++++++++++++++++
 drivers/dma/mediatek/Kconfig                       |   11 +
 drivers/dma/mediatek/Makefile                      |    1 +
 drivers/tty/serial/8250/8250_mtk.c                 |  210 ++++-
 6 files changed, 1198 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/dma/8250_mtk_dma.txt
 create mode 100644 drivers/dma/mediatek/8250_mtk_dma.c