Add DMA driver and dt-binding document for Loongson1 SoCs. Changelog V4 -> V5: Add the dt-binding document Add DT support Use DT information instead of platform data Use chan_id of struct dma_chan instead of own id Use of_dma_xlate_by_chan_id() instead of ls1x_dma_filter() Update the author information to my official name V3 -> V4: Use dma_slave_map to find the proper channel. Explicitly call devm_request_irq() and tasklet_kill(). Fix namespace issue. Some minor fixes and cleanups. V2 -> V3: Rename ls1x_dma_filter_fn to ls1x_dma_filter. V1 -> V2: Change the config from 'DMA_LOONGSON1' to 'LOONGSON1_DMA', and rearrange it in alphabetical order in Kconfig and Makefile. Fix comment style. Keguang Zhang (2): dt-bindings: dma: Add Loongson-1 DMA dmaengine: Loongson1: Add Loongson1 dmaengine driver .../bindings/dma/loongson,ls1x-dma.yaml | 64 +++ drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/loongson1-dma.c | 492 ++++++++++++++++++ 4 files changed, 566 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/loongson,ls1x-dma.yaml create mode 100644 drivers/dma/loongson1-dma.c base-commit: 719136e5c24768ebdf80b9daa53facebbdd377c3 -- 2.39.2
