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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>
87 lines
2.6 KiB
Text
87 lines
2.6 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Platform drivers
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# Most drivers here are currently for webcam support
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menuconfig MEDIA_PLATFORM_DRIVERS
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bool "Media platform devices"
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default "y"
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help
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Say Y here to enable support for platform-specific media drivers.
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if MEDIA_PLATFORM_DRIVERS
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config V4L_PLATFORM_DRIVERS
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bool "V4L platform devices"
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help
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Say Y here to enable support for platform-specific V4L drivers.
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config SDR_PLATFORM_DRIVERS
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bool "SDR platform devices"
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depends on MEDIA_SDR_SUPPORT
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help
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Say Y here to enable support for platform-specific SDR Drivers.
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config DVB_PLATFORM_DRIVERS
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bool "DVB platform devices"
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depends on MEDIA_DIGITAL_TV_SUPPORT
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help
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Say Y here to enable support for platform-specific Digital TV drivers.
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config V4L_MEM2MEM_DRIVERS
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bool "Memory-to-memory multimedia devices"
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depends on VIDEO_DEV
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help
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Say Y here to enable selecting drivers for V4L devices that
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use system memory for both source and destination buffers, as opposed
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to capture and output drivers, which use memory buffers for just
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one of those.
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# Ancillary drivers
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config VIDEO_MEM2MEM_DEINTERLACE
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tristate "Deinterlace support"
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depends on V4L_MEM2MEM_DRIVERS
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depends on VIDEO_DEV
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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Generic deinterlacing V4L2 driver.
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config VIDEO_MUX
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tristate "Video Multiplexer"
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depends on V4L_PLATFORM_DRIVERS
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select MULTIPLEXER
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depends on VIDEO_DEV && OF
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select MEDIA_CONTROLLER
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select VIDEO_V4L2_SUBDEV_API
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select REGMAP
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select V4L2_FWNODE
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help
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This driver provides support for N:1 video bus multiplexers.
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# Platform drivers - Please keep it alphabetically sorted
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source "drivers/media/platform/allegro-dvt/Kconfig"
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source "drivers/media/platform/amlogic/Kconfig"
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source "drivers/media/platform/amphion/Kconfig"
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source "drivers/media/platform/aspeed/Kconfig"
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source "drivers/media/platform/atmel/Kconfig"
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source "drivers/media/platform/cadence/Kconfig"
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source "drivers/media/platform/chips-media/Kconfig"
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source "drivers/media/platform/intel/Kconfig"
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source "drivers/media/platform/marvell/Kconfig"
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source "drivers/media/platform/mediatek/Kconfig"
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source "drivers/media/platform/nvidia/Kconfig"
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source "drivers/media/platform/nxp/Kconfig"
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source "drivers/media/platform/qcom/Kconfig"
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source "drivers/media/platform/renesas/Kconfig"
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source "drivers/media/platform/rockchip/Kconfig"
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source "drivers/media/platform/samsung/Kconfig"
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source "drivers/media/platform/st/Kconfig"
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source "drivers/media/platform/sunxi/Kconfig"
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source "drivers/media/platform/ti/Kconfig"
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source "drivers/media/platform/via/Kconfig"
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source "drivers/media/platform/xilinx/Kconfig"
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endif # MEDIA_PLATFORM_DRIVERS
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