diff options
| author | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-03-13 07:25:46 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-03-18 05:58:35 +0100 |
| commit | 9958d30f38b96fb763a10d44d18ddad39127d5f4 (patch) | |
| tree | 76d0ab2b11ca1171bf66926904251015d8b4c2bd /drivers/media/v4l2-core/Kconfig | |
| parent | 63fe3d27b226fe01746bace4d1f1f2164406140d (diff) | |
| download | linux-9958d30f38b96fb763a10d44d18ddad39127d5f4.tar.gz | |
media: Kconfig: cleanup VIDEO_DEV dependencies
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>
Diffstat (limited to 'drivers/media/v4l2-core/Kconfig')
| -rw-r--r-- | drivers/media/v4l2-core/Kconfig | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig index 6ee75c6c820e..1be9a2cc947a 100644 --- a/drivers/media/v4l2-core/Kconfig +++ b/drivers/media/v4l2-core/Kconfig @@ -3,17 +3,9 @@ # Generic video config states # -# Enable the V4L2 core and API -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 - config VIDEO_V4L2_I2C bool - depends on I2C && VIDEO_V4L2 + depends on I2C && VIDEO_DEV default y config VIDEO_V4L2_SUBDEV_API @@ -64,7 +56,7 @@ config V4L2_MEM2MEM_DEV # Used by LED subsystem flash drivers config V4L2_FLASH_LED_CLASS tristate "V4L2 flash API for LED flash class devices" - depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on VIDEO_DEV && VIDEO_V4L2_SUBDEV_API depends on LEDS_CLASS_FLASH select V4L2_ASYNC help |