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authorHyun Kwon <hyun.kwon@xilinx.com>2020-07-17 04:33:35 +0300
committerVinod Koul <vkoul@kernel.org>2020-07-17 11:37:59 +0530
commit7cbb0c63de3fc218fd06ecfedb477772a4d12f76 (patch)
tree3c7401155c0bb244a7185fe42f4ce61c62b246a2 /drivers/dma/Kconfig
parent9c8ebd8b82da89c2484594b61d66288d24983348 (diff)
downloadlinux-7cbb0c63de3fc218fd06ecfedb477772a4d12f76.tar.bz2
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: Hyun Kwon <hyun.kwon@xilinx.com> Signed-off-by: Tejas Upadhyay <tejasu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20200717013337.24122-4-laurent.pinchart@ideasonboard.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/Kconfig')
-rw-r--r--drivers/dma/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index de41d7928bff..668e9636c547 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -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