Commit ba5bf51a authored May 27, 2020 by Vishal Sagar Committed by Mauro Carvalho Chehab Jun 23, 2020

media: v4l: xilinx: Add Xilinx MIPI CSI-2 Rx Subsystem driver



The Xilinx MIPI CSI-2 Rx Subsystem soft IP is used to capture images
from MIPI CSI-2 camera sensors and output AXI4-Stream video data ready
for image processing. Please refer to PG232 for details.

The CSI2 Rx controller filters out all packets except for the packets
with data type fixed in hardware. RAW8 packets are always allowed to
pass through.

It is also used to setup and handle interrupts and enable the core. It
logs all the events in respective counters between streaming on and off.

The driver supports only the video format bridge enabled configuration.
Some data types like YUV 422 10bpc, RAW16, RAW20 are supported when the
CSI v2.0 feature is enabled in design. When the VCX feature is enabled,
the maximum number of virtual channels becomes 16 from 4.

Signed-off-by: Vishal Sagar <vishal.sagar@xilinx.com>
Reviewed-by: Hyun Kwon <hyun.kwon@xilinx.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

parent 9e5eb9a4

drivers/media/platform/xilinx/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,13 @@ config VIDEO_XILINX

		if VIDEO_XILINX

		config VIDEO_XILINX_CSI2RXSS
		tristate "Xilinx CSI-2 Rx Subsystem"
		help
		Driver for Xilinx MIPI CSI-2 Rx Subsystem. This is a V4L sub-device
		based driver that takes input from CSI-2 Tx source and converts
		it into an AXI4-Stream.

		config VIDEO_XILINX_TPG
		tristate "Xilinx Video Test Pattern Generator"
		depends on VIDEO_XILINX

drivers/media/platform/xilinx/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -3,5 +3,6 @@
		xilinx-video-objs += xilinx-dma.o xilinx-vip.o xilinx-vipp.o

		obj-$(CONFIG_VIDEO_XILINX) += xilinx-video.o
		obj-$(CONFIG_VIDEO_XILINX_CSI2RXSS) += xilinx-csi2rxss.o
		obj-$(CONFIG_VIDEO_XILINX_TPG) += xilinx-tpg.o
		obj-$(CONFIG_VIDEO_XILINX_VTC) += xilinx-vtc.o

drivers/media/platform/xilinx/xilinx-csi2rxss.c

0 → 100644

+1111 −0

File added.

Preview size limit exceeded, changes collapsed.

Admin message