linux-kernel - [PATCH v13 0/2] add uart DMA function

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Date:   Thu, 23 May 2019 15:35:07 +0800
From:   Long Cheng <long.cheng@...iatek.com>
To:     Vinod Koul <vkoul@...nel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Sean Wang <sean.wang@...nel.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     Dan Williams <dan.j.williams@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Sean Wang <sean.wang@...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>,
        Zhenbao Liu <zhenbao.liu@...iatek.com>,
        Long Cheng <long.cheng@...iatek.com>
Subject: [PATCH v13 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/mediatek.

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 v12
-rename parameters
-remove direction
Changes compared to v11
-modify TX/RX
-pause function by software
Changes compared to v10
-modify DMA tx status function
-modify 8250_mtk for DMA rx
-add notes to binding Document.
Changes compared to v9
-rename dt-bindings file
-remove direction from device_config
-simplified code
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

Long Cheng (2):
  arm: dts: mt2712: add uart APDMA to device tree
  serial: 8250-mtk: modify uart DMA rx

 arch/arm64/boot/dts/mediatek/mt2712e.dtsi |   51 +++++++++++++++++++++++++++++
 drivers/tty/serial/8250/8250_mtk.c        |   49 +++++++++++----------------
 2 files changed, 71 insertions(+), 29 deletions(-)

-- 
1.7.9.5