Commit cb6d000f authored by Xavier Roumegue's avatar Xavier Roumegue Committed by Mauro Carvalho Chehab
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media: dw100: Add i.MX8MP dw100 dewarper driver 



Add a V4L2 mem-to-mem driver for the Vivante DW100 Dewarp Processor IP
core found on i.MX8MP SoC.

The processor core applies a programmable geometrical transformation on
input images to correct distorsion introduced by lenses.
The transformation function is exposed as a grid map with 16x16 pixel
macroblocks indexed using X, Y vertex coordinates.

The dewarping map can be set from application through a dedicated v4l2
control. If not set or invalid, the driver computes an identity map
prior to starting the processing engine.

The driver supports scaling, cropping and pixel format conversion.

Signed-off-by: default avatarXavier Roumegue <xavier.roumegue@oss.nxp.com>
Reviewed-by: default avatarEzequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 1301663c

drivers/media/platform/nxp/Kconfig

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@@ -51,4 +51,5 @@ config VIDEO_MX2_EMMAPRP 
	    memory to memory. Operations include resizing and format

	    conversion.



source "drivers/media/platform/nxp/dw100/Kconfig"

source "drivers/media/platform/nxp/imx-jpeg/Kconfig"

drivers/media/platform/nxp/Makefile

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



obj-y += dw100/

obj-y += imx-jpeg/



obj-$(CONFIG_VIDEO_IMX_MIPI_CSIS) += imx-mipi-csis.o

drivers/media/platform/nxp/dw100/Kconfig

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



config VIDEO_DW100

	tristate "NXP i.MX DW100 dewarper"

	depends on V4L_MEM2MEM_DRIVERS

	depends on VIDEO_DEV

	depends on ARCH_MXC || COMPILE_TEST

	select MEDIA_CONTROLLER

	select V4L2_MEM2MEM_DEV

	select VIDEOBUF2_DMA_CONTIG

	help

	  DW100 is a memory-to-memory engine performing geometrical

	  transformation on source images through a programmable dewarping map.



	  To compile this driver as a module, choose M here: the module

	  will be called dw100.

drivers/media/platform/nxp/dw100/Makefile

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# SPDX-License-Identifier: GPL-2.0+



obj-$(CONFIG_VIDEO_DW100) += dw100.o

drivers/media/platform/nxp/dw100/dw100.c

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File added.

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