linux-kernel - [PATCH v6 0/2] add uart DMA function

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Message-ID: <1545186022-3712-1-git-send-email-long.cheng@mediatek.com>
Date:   Wed, 19 Dec 2018 10:20:20 +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>,
        Ryder Lee <ryder.lee@...iatek.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>,
        Sean Wang <sean.wang@...nel.org>, <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>,
        Long Cheng <long.cheng@...iatek.com>
Subject: [PATCH v6 0/2] 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 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