linux-kernel - [PATCH v3 0/5] arm: aspeed: Add UART DMA support

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Message-ID: <20230320081133.23655-1-chiawei_wang@aspeedtech.com>
Date:   Mon, 20 Mar 2023 16:11:28 +0800
From:   Chia-Wei Wang <chiawei_wang@...eedtech.com>
To:     <vkoul@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <joel@....id.au>,
        <andrew@...id.au>, <gregkh@...uxfoundation.org>,
        <jirislaby@...nel.org>, <pmenzel@...gen.mpg.de>,
        <ilpo.jarvinen@...ux.intel.com>, <hdanton@...a.com>,
        <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <linux-serial@...r.kernel.org>, <openbmc@...ts.ozlabs.org>
Subject: [PATCH v3 0/5] arm: aspeed: Add UART DMA support

This patch serias adds the 8250 driver with DMA support for AST26xx UART devices

v3 change:
 - add error check against dma_to_phys
 - revise UDMA binding
 - remove UDMA binding header
 - remove redundant header inclusions of UDMA driver
 - fix incorrect UDMA channel number (14->28)
 - place UDMA kconfig in alphabetical order
 - collect Acked-by tags

v2 change:
 - re-write UDMA driver based on the DMAEngine framework
 - re-write 8250_aspeed driver with DMA support based on the 8250_dma implementation
 - remove virtual UART part as there is already a 8250_aspeed_vuart driver

Chia-Wei Wang (5):
  dt-bindings: serial: 8250: Add aspeed,ast2600-uart
  dt-bindings: dmaengine: Add AST2600 UDMA bindings
  dmaengine: aspeed: Add AST2600 UART DMA driver
  serial: 8250: Add AST2600 UART driver
  ARM: dts: aspeed-g6: Add UDMA node

 .../bindings/dma/aspeed,ast2600-udma.yaml     |  56 ++
 .../devicetree/bindings/serial/8250.yaml      |   1 +
 arch/arm/boot/dts/aspeed-g6.dtsi              |   9 +
 drivers/dma/Kconfig                           |   9 +
 drivers/dma/Makefile                          |   1 +
 drivers/dma/ast2600-udma.c                    | 534 ++++++++++++++++++
 drivers/tty/serial/8250/8250_aspeed.c         | 224 ++++++++
 drivers/tty/serial/8250/Kconfig               |   8 +
 drivers/tty/serial/8250/Makefile              |   1 +
 9 files changed, 843 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/aspeed,ast2600-udma.yaml
 create mode 100644 drivers/dma/ast2600-udma.c
 create mode 100644 drivers/tty/serial/8250/8250_aspeed.c

-- 
2.25.1