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
