Commit 7cbb0c63 authored by Hyun Kwon's avatar Hyun Kwon Committed by Vinod Koul
Browse files

dmaengine: xilinx: dpdma: Add the Xilinx DisplayPort DMA engine driver 



The ZynqMP DisplayPort subsystem includes a DMA engine called DPDMA with
6 DMa channels (4 for display and 2 for audio). This driver exposes the
DPDMA through the dmaengine API, to be used by audio (ALSA) and display
(DRM) drivers for the DisplayPort subsystem.

Signed-off-by: default avatarHyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: default avatarTejas Upadhyay <tejasu@xilinx.com>
Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20200717013337.24122-4-laurent.pinchart@ideasonboard.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 9c8ebd8b

MAINTAINERS

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@@ -18858,6 +18858,7 @@ M: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 
L:	dmaengine@vger.kernel.org

S:	Supported

F:	Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml

F:	drivers/dma/xilinx/xilinx_dpdma.c

F:	include/dt-bindings/dma/xlnx-zynqmp-dpdma.h















XILLYBUS DRIVER

























drivers/dma/Kconfig



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@@ -707,6 +707,16 @@ config XILINX_ZYNQMP_DMA













	help















	  Enable support for Xilinx ZynqMP DMA controller.





























config XILINX_ZYNQMP_DPDMA













	tristate "Xilinx DPDMA Engine"













	select DMA_ENGINE













	select DMA_VIRTUAL_CHANNELS













	help













	  Enable support for Xilinx ZynqMP DisplayPort DMA. Choose this option













	  if you have a Xilinx ZynqMP SoC with a DisplayPort subsystem. The













	  driver provides the dmaengine required by the DisplayPort subsystem













	  display driver.





























config ZX_DMA















	tristate "ZTE ZX DMA support"















	depends on ARCH_ZX || COMPILE_TEST

































drivers/dma/xilinx/Makefile



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# SPDX-License-Identifier: GPL-2.0-only















obj-$(CONFIG_XILINX_DMA) += xilinx_dma.o















obj-$(CONFIG_XILINX_ZYNQMP_DMA) += zynqmp_dma.o













obj-$(CONFIG_XILINX_ZYNQMP_DPDMA) += xilinx_dpdma.o
























drivers/dma/xilinx/xilinx_dpdma.c
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