Commit ee170280 authored by Akhil R's avatar Akhil R Committed by Vinod Koul
Browse files

dmaengine: tegra: Add tegra gpcdma driver 



Adding GPC DMA controller driver for Tegra. The driver supports dma
transfers between memory to memory, IO peripheral to memory and
memory to IO peripheral.

Co-developed-by: default avatarPavan Kunapuli <pkunapuli@nvidia.com>
Signed-off-by: default avatarPavan Kunapuli <pkunapuli@nvidia.com>
Co-developed-by: default avatarRajesh Gumasta <rgumasta@nvidia.com>
Signed-off-by: default avatarRajesh Gumasta <rgumasta@nvidia.com>
Signed-off-by: default avatarAkhil R <akhilrajeev@nvidia.com>
Reviewed-by: default avatarJon Hunter <jonathanh@nvidia.com>
Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20220225132044.14478-3-akhilrajeev@nvidia.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 72910626

drivers/dma/Kconfig

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Original line number Diff line number Diff line
@@ -629,6 +629,17 @@ config TXX9_DMAC 
	  Support the TXx9 SoC internal DMA controller.  This can be

	  integrated in chips such as the Toshiba TX4927/38/39.



config TEGRA186_GPC_DMA

	tristate "NVIDIA Tegra GPC DMA support"

	depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT

	select DMA_ENGINE

	help

	  Support for the NVIDIA Tegra General Purpose Central DMA controller.

	  The DMA controller has multiple DMA channels which can be configured

	  for different peripherals like UART, SPI, etc which are on APB bus.

	  This DMA controller transfers data from memory to peripheral FIFO

	  or vice versa. It also supports memory to memory data transfer.



config TEGRA20_APB_DMA

	tristate "NVIDIA Tegra20 APB DMA support"

	depends on ARCH_TEGRA || COMPILE_TEST

drivers/dma/Makefile

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@@ -72,6 +72,7 @@ obj-$(CONFIG_STM32_MDMA) += stm32-mdma.o 
obj-$(CONFIG_SPRD_DMA) += sprd-dma.o

obj-$(CONFIG_S3C24XX_DMAC) += s3c24xx-dma.o

obj-$(CONFIG_TXX9_DMAC) += txx9dmac.o

obj-$(CONFIG_TEGRA186_GPC_DMA) += tegra186-gpc-dma.o

obj-$(CONFIG_TEGRA20_APB_DMA) += tegra20-apb-dma.o

obj-$(CONFIG_TEGRA210_ADMA) += tegra210-adma.o

obj-$(CONFIG_TIMB_DMA) += timb_dma.o

drivers/dma/tegra186-gpc-dma.c

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