9958d30f38
media Kconfig has two entries associated to V4L API: VIDEO_DEV and VIDEO_V4L2. On Kernel 2.6.x, there were two V4L APIs, each one with its own flag. VIDEO_DEV were meant to: 1) enable Video4Linux and make its Kconfig options to appear; 2) it makes the Kernel build the V4L core. while VIDEO_V4L2 where used to distinguish between drivers that implement the newer API and drivers that implemented the former one. With time, such meaning changed, specially after the removal of all V4L version 1 drivers. At the current implementation, VIDEO_DEV only does (1): it enables the media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenu but it doesn't affect anymore the V4L core drivers. The rationale is that the V4L2 core has a "soft" dependency at the I2C bus, and now requires to select a number of other Kconfig options: config VIDEO_V4L2 tristate depends on (I2C || I2C=n) && VIDEO_DEV select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE default (I2C || I2C=n) && VIDEO_DEV In the past, merging them would be tricky, but it seems that it is now possible to merge those symbols, in order to simplify V4L dependencies. Let's keep VIDEO_DEV, as this one is used on some make *defconfig configurations. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
64 lines
1.9 KiB
Text
64 lines
1.9 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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comment "Atmel media platform drivers"
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config VIDEO_ATMEL_ISC
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tristate "ATMEL Image Sensor Controller (ISC) support"
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depends on V4L_PLATFORM_DRIVERS
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depends on VIDEO_DEV && COMMON_CLK
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depends on ARCH_AT91 || COMPILE_TEST
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select MEDIA_CONTROLLER
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select VIDEO_V4L2_SUBDEV_API
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select VIDEOBUF2_DMA_CONTIG
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select REGMAP_MMIO
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select V4L2_FWNODE
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select VIDEO_ATMEL_ISC_BASE
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help
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This module makes the ATMEL Image Sensor Controller available
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as a v4l2 device.
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config VIDEO_ATMEL_XISC
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tristate "ATMEL eXtended Image Sensor Controller (XISC) support"
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depends on V4L_PLATFORM_DRIVERS
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depends on VIDEO_DEV && COMMON_CLK && VIDEO_V4L2_SUBDEV_API
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depends on ARCH_AT91 || COMPILE_TEST
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select VIDEOBUF2_DMA_CONTIG
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select REGMAP_MMIO
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select V4L2_FWNODE
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select VIDEO_ATMEL_ISC_BASE
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help
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This module makes the ATMEL eXtended Image Sensor Controller
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available as a v4l2 device.
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config VIDEO_ATMEL_ISC_BASE
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tristate
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default n
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help
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ATMEL ISC and XISC common code base.
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config VIDEO_ATMEL_ISI
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tristate "ATMEL Image Sensor Interface (ISI) support"
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depends on V4L_PLATFORM_DRIVERS
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depends on VIDEO_DEV && OF
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depends on ARCH_AT91 || COMPILE_TEST
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_FWNODE
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help
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This module makes the ATMEL Image Sensor Interface available
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as a v4l2 device.
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config VIDEO_MICROCHIP_CSI2DC
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tristate "Microchip CSI2 Demux Controller"
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depends on V4L_PLATFORM_DRIVERS
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depends on VIDEO_DEV && COMMON_CLK && OF
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depends on ARCH_AT91 || COMPILE_TEST
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select MEDIA_CONTROLLER
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select VIDEO_V4L2_SUBDEV_API
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select V4L2_FWNODE
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help
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CSI2 Demux Controller driver. CSI2DC is a helper chip
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that converts IDI interface byte stream to a parallel pixel stream.
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It supports various RAW formats as input.
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To compile this driver as a module, choose M here: the
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module will be called microchip-csi2dc.
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