Add support for Nvida Tegra general purpose DMA driver for Tegra186 and Tegra194 platform. Changes in patch v4: Addressed review comments in patch v3 v3 - https://lkml.org/lkml/2021/8/27/34 v2 - https://lkml.org/lkml/2020/8/6/90 v1 - https://lkml.org/lkml/2020/7/20/96 Akhil R (4): dt-bindings: dmaengine: Add doc for tegra gpcdma dmaengine: tegra: Add tegra gpcdma driver arm64: defconfig: tegra: Enable GPCDMA arm64: tegra: Add GPCDMA node for tegra186 and tegra194 .../bindings/dma/nvidia,tegra186-gpc-dma.yaml | 106 ++ arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 4 + arch/arm64/boot/dts/nvidia/tegra186.dtsi | 46 + arch/arm64/boot/dts/nvidia/tegra194.dtsi | 46 + arch/arm64/configs/defconfig | 1 + drivers/dma/Kconfig | 12 + drivers/dma/Makefile | 1 + drivers/dma/tegra186-gpc-dma.c | 1371 ++++++++++++++++++++ 8 files changed, 1587 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml create mode 100644 drivers/dma/tegra186-gpc-dma.c -- 2.7.4
