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>

14 files changed, 20 insertions, 20 deletions

diff --git a/drivers/staging/media/atomisp/Kconfig b/drivers/staging/media/atomisp/Kconfig
index aeed5803dfb1..2c8d7fdcc5f7 100644
--- a/drivers/staging/media/atomisp/Kconfig
+++ b/drivers/staging/media/atomisp/Kconfig
@@ -11,7 +11,7 @@ menuconfig INTEL_ATOMISP
 
 config VIDEO_ATOMISP
 	tristate "Intel Atom Image Signal Processor Driver"
-	depends on VIDEO_V4L2 && INTEL_ATOMISP
+	depends on VIDEO_DEV && INTEL_ATOMISP
 	depends on PMIC_OPREGION
 	select IOSF_MBI
 	select VIDEOBUF_VMALLOC
diff --git a/drivers/staging/media/atomisp/i2c/Kconfig b/drivers/staging/media/atomisp/i2c/Kconfig
index a772b833a85f..e726101b24e4 100644
--- a/drivers/staging/media/atomisp/i2c/Kconfig
+++ b/drivers/staging/media/atomisp/i2c/Kconfig
@@ -6,7 +6,7 @@
 config VIDEO_ATOMISP_OV2722
 	tristate "OVT ov2722 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the OVT
 	  OV2722 raw camera.
@@ -18,7 +18,7 @@ config VIDEO_ATOMISP_OV2722
 config VIDEO_ATOMISP_GC2235
 	tristate "Galaxy gc2235 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the OVT
 	  GC2235 raw camera.
@@ -40,7 +40,7 @@ config VIDEO_ATOMISP_MSRLIST_HELPER
 config VIDEO_ATOMISP_MT9M114
 	tristate "Aptina mt9m114 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the Micron
 	  mt9m114 1.3 Mpixel camera.
@@ -52,7 +52,7 @@ config VIDEO_ATOMISP_MT9M114
 config VIDEO_ATOMISP_GC0310
 	tristate "GC0310 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the Galaxycore
 	  GC0310 0.3MP sensor.
@@ -60,7 +60,7 @@ config VIDEO_ATOMISP_GC0310
 config VIDEO_ATOMISP_OV2680
 	tristate "Omnivision OV2680 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the Omnivision
 	  OV2680 raw camera.
@@ -72,7 +72,7 @@ config VIDEO_ATOMISP_OV2680
 config VIDEO_ATOMISP_OV5693
 	tristate "Omnivision ov5693 sensor support"
 	depends on ACPI
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	help
 	  This is a Video4Linux2 sensor-level driver for the Micron
 	  ov5693 5 Mpixel camera.
@@ -88,7 +88,7 @@ config VIDEO_ATOMISP_OV5693
 config VIDEO_ATOMISP_LM3554
        tristate "LM3554 flash light driver"
 	depends on ACPI
-       depends on VIDEO_V4L2 && I2C
+       depends on VIDEO_DEV && I2C
 	help
 	 This is a Video4Linux2 sub-dev driver for the LM3554
 	 flash light driver.
diff --git a/drivers/staging/media/hantro/Kconfig b/drivers/staging/media/hantro/Kconfig
index 3c5d833322c8..0172a6822ec2 100644
--- a/drivers/staging/media/hantro/Kconfig
+++ b/drivers/staging/media/hantro/Kconfig
@@ -2,7 +2,7 @@
 config VIDEO_HANTRO
 	tristate "Hantro VPU driver"
 	depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || ARCH_SUNXI || COMPILE_TEST
-	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select MEDIA_CONTROLLER_REQUEST_API
 	select VIDEOBUF2_DMA_CONTIG
diff --git a/drivers/staging/media/imx/Kconfig b/drivers/staging/media/imx/Kconfig
index c3bf433ba3e3..0bacac302d7e 100644
--- a/drivers/staging/media/imx/Kconfig
+++ b/drivers/staging/media/imx/Kconfig
@@ -4,7 +4,7 @@ config VIDEO_IMX_MEDIA
 	depends on ARCH_MXC || COMPILE_TEST
 	depends on HAS_DMA
 	depends on VIDEO_DEV
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select V4L2_FWNODE
 	select V4L2_MEM2MEM_DEV
diff --git a/drivers/staging/media/ipu3/Kconfig b/drivers/staging/media/ipu3/Kconfig
index 3e9640523e50..114a1d8e7cc8 100644
--- a/drivers/staging/media/ipu3/Kconfig
+++ b/drivers/staging/media/ipu3/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 config VIDEO_IPU3_IMGU
 	tristate "Intel ipu3-imgu driver"
-	depends on PCI && VIDEO_V4L2
+	depends on PCI && VIDEO_DEV
 	depends on X86
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
diff --git a/drivers/staging/media/max96712/Kconfig b/drivers/staging/media/max96712/Kconfig
index acde14fd5c4d..117fadf81bd0 100644
--- a/drivers/staging/media/max96712/Kconfig
+++ b/drivers/staging/media/max96712/Kconfig
@@ -3,7 +3,7 @@ config VIDEO_MAX96712
 	tristate "Maxim MAX96712 Quad GMSL2 Deserializer support"
 	depends on I2C
 	depends on OF_GPIO
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	select V4L2_FWNODE
 	select VIDEO_V4L2_SUBDEV_API
 	select MEDIA_CONTROLLER
diff --git a/drivers/staging/media/meson/vdec/Kconfig b/drivers/staging/media/meson/vdec/Kconfig
index 9e1450193392..19ffea987b89 100644
--- a/drivers/staging/media/meson/vdec/Kconfig
+++ b/drivers/staging/media/meson/vdec/Kconfig
@@ -2,7 +2,7 @@
 
 config VIDEO_MESON_VDEC
 	tristate "Amlogic video decoder driver"
-	depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA
+	depends on VIDEO_DEV && HAS_DMA
 	depends on ARCH_MESON || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
diff --git a/drivers/staging/media/omap4iss/Kconfig b/drivers/staging/media/omap4iss/Kconfig
index 6c254907a27b..6d1f55b09132 100644
--- a/drivers/staging/media/omap4iss/Kconfig
+++ b/drivers/staging/media/omap4iss/Kconfig
@@ -2,7 +2,7 @@
 
 config VIDEO_OMAP4
 	tristate "OMAP 4 Camera support"
-	depends on VIDEO_V4L2  && I2C
+	depends on VIDEO_DEV  && I2C
 	depends on ARCH_OMAP4 || COMPILE_TEST
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
diff --git a/drivers/staging/media/rkvdec/Kconfig b/drivers/staging/media/rkvdec/Kconfig
index dc7292f346fa..e963d60cc6ad 100644
--- a/drivers/staging/media/rkvdec/Kconfig
+++ b/drivers/staging/media/rkvdec/Kconfig
@@ -2,7 +2,7 @@
 config VIDEO_ROCKCHIP_VDEC
 	tristate "Rockchip Video Decoder driver"
 	depends on ARCH_ROCKCHIP || COMPILE_TEST
-	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select MEDIA_CONTROLLER_REQUEST_API
 	select VIDEOBUF2_DMA_CONTIG
diff --git a/drivers/staging/media/sunxi/cedrus/Kconfig b/drivers/staging/media/sunxi/cedrus/Kconfig
index da369950bbf2..21c13f9b6e33 100644
--- a/drivers/staging/media/sunxi/cedrus/Kconfig
+++ b/drivers/staging/media/sunxi/cedrus/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 config VIDEO_SUNXI_CEDRUS
 	tristate "Allwinner Cedrus VPU driver"
-	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on VIDEO_DEV
 	depends on HAS_DMA
 	depends on OF
 	select MEDIA_CONTROLLER
diff --git a/drivers/staging/media/tegra-video/Kconfig b/drivers/staging/media/tegra-video/Kconfig
index 1f35da4b134e..df1b2cff2417 100644
--- a/drivers/staging/media/tegra-video/Kconfig
+++ b/drivers/staging/media/tegra-video/Kconfig
@@ -2,7 +2,7 @@
 config VIDEO_TEGRA
 	tristate "NVIDIA Tegra VI driver"
 	depends on TEGRA_HOST1X
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_FWNODE
diff --git a/drivers/staging/media/zoran/Kconfig b/drivers/staging/media/zoran/Kconfig
index faef008b8554..3fb3e27e04a8 100644
--- a/drivers/staging/media/zoran/Kconfig
+++ b/drivers/staging/media/zoran/Kconfig
@@ -1,6 +1,6 @@
 config VIDEO_ZORAN
 	tristate "Zoran ZR36057/36067 Video For Linux (Deprecated)"
-	depends on PCI && I2C_ALGOBIT && VIDEO_V4L2
+	depends on PCI && I2C_ALGOBIT && VIDEO_DEV
 	depends on !ALPHA
 	depends on DEBUG_FS
 	select VIDEOBUF2_DMA_CONTIG
diff --git a/drivers/staging/most/video/Kconfig b/drivers/staging/most/video/Kconfig
index e0964ca5e7b3..e16cc5e104b7 100644
--- a/drivers/staging/most/video/Kconfig
+++ b/drivers/staging/most/video/Kconfig
@@ -5,7 +5,7 @@
 
 config MOST_VIDEO
 	tristate "Video"
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	help
 	  Say Y here if you want to commumicate via Video 4 Linux.
 
diff --git a/drivers/staging/vc04_services/bcm2835-camera/Kconfig b/drivers/staging/vc04_services/bcm2835-camera/Kconfig
index d0653d1ed3c7..dcda565f9b38 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/Kconfig
+++ b/drivers/staging/vc04_services/bcm2835-camera/Kconfig
@@ -2,7 +2,7 @@
 config VIDEO_BCM2835
 	tristate "BCM2835 Camera"
 	depends on MEDIA_SUPPORT
-	depends on VIDEO_V4L2 && (ARCH_BCM2835 || COMPILE_TEST)
+	depends on VIDEO_DEV && (ARCH_BCM2835 || COMPILE_TEST)
 	select BCM2835_VCHIQ
 	select BCM2835_VCHIQ_MMAL
 	select VIDEOBUF2_VMALLOC