Commit 548c4597 authored by Sean Wang's avatar Sean Wang Committed by Vinod Koul
Browse files

dmaengine: mediatek: Add MediaTek High-Speed DMA controller for MT7622 and MT7623 SoC 



MediaTek High-Speed DMA controller (HSDMA) on MT7622 and MT7623 SoC has
a single ring is dedicated to memory-to-memory transfer through ring based
descriptor management.

Even though there is only one physical ring available inside HSDMA, the
driver can be easily extended to the support of multiple virtual channels
processing simultaneously by means of DMA_VIRTUAL_CHANNELS effort.

Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 33f32c0e

drivers/dma/Kconfig

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@@ -633,6 +633,8 @@ config ZX_DMA 
# driver files

source "drivers/dma/bestcomm/Kconfig"



source "drivers/dma/mediatek/Kconfig"



source "drivers/dma/qcom/Kconfig"



source "drivers/dma/dw/Kconfig"

drivers/dma/Makefile

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@@ -75,5 +75,6 @@ obj-$(CONFIG_XGENE_DMA) += xgene-dma.o 
obj-$(CONFIG_ZX_DMA) += zx_dma.o

obj-$(CONFIG_ST_FDMA) += st_fdma.o



obj-y += mediatek/

obj-y += qcom/

obj-y += xilinx/

drivers/dma/mediatek/Kconfig

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config MTK_HSDMA

	tristate "MediaTek High-Speed DMA controller support"

	depends on ARCH_MEDIATEK || COMPILE_TEST

	select DMA_ENGINE

	select DMA_VIRTUAL_CHANNELS

	---help---

	  Enable support for High-Speed DMA controller on MediaTek

	  SoCs.



	  This controller provides the channels which is dedicated to

	  memory-to-memory transfer to offload from CPU through ring-

	  based descriptor management.

drivers/dma/mediatek/Makefile

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obj-$(CONFIG_MTK_HSDMA) += mtk-hsdma.o

drivers/dma/mediatek/mtk-hsdma.c

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File added.

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