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Commit d894fc60 authored by Alex Smith's avatar Alex Smith Committed by Vinod Koul
Browse files

dmaengine: jz4780: add driver for the Ingenic JZ4780 DMA controller 



This patch adds a driver for the DMA controller found in the Ingenic
JZ4780.

It currently does not implement any support for the programmable firmware
feature of the controller - this is not necessary for most uses. It also
does not take priority into account when allocating channels, it just
allocates the first available channel. This can be implemented later.

Signed-off-by: default avatarAlex Smith <alex.smith@imgtec.com>
Signed-off-by: default avatarZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
[Updated for dmaengine api changes, Add residue support, couple of minor fixes]
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent c8307106

drivers/dma/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -358,6 +358,16 @@ config DMA_JZ4740 
	select DMA_ENGINE

	select DMA_VIRTUAL_CHANNELS



config DMA_JZ4780

	tristate "JZ4780 DMA support"

	depends on MACH_JZ4780

	select DMA_ENGINE

	select DMA_VIRTUAL_CHANNELS

	help

	  This selects support for the DMA controller in Ingenic JZ4780 SoCs.

	  If you have a board based on such a SoC and wish to use DMA for

	  devices which can use the DMA controller, say Y or M here.



config K3_DMA

	tristate "Hisilicon K3 DMA support"

	depends on ARCH_HI3xxx

drivers/dma/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ obj-$(CONFIG_DMA_OMAP) += omap-dma.o 
obj-$(CONFIG_DMA_BCM2835) += bcm2835-dma.o

obj-$(CONFIG_MMP_PDMA) += mmp_pdma.o

obj-$(CONFIG_DMA_JZ4740) += dma-jz4740.o

obj-$(CONFIG_DMA_JZ4780) += dma-jz4780.o

obj-$(CONFIG_TI_CPPI41) += cppi41.o

obj-$(CONFIG_K3_DMA) += k3dma.o

obj-$(CONFIG_MOXART_DMA) += moxart-dma.o

drivers/dma/dma-jz4780.c

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include/dt-bindings/dma/jz4780-dma.h

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