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>

13 files changed, 15 insertions, 15 deletions

diff --git a/drivers/media/pci/Kconfig b/drivers/media/pci/Kconfig
index 2cd8e328dda9..92b156530d91 100644
--- a/drivers/media/pci/Kconfig
+++ b/drivers/media/pci/Kconfig
@@ -61,7 +61,7 @@ config VIDEO_PCI_SKELETON
 	tristate "Skeleton PCI V4L2 driver"
 	depends on SAMPLES
 	depends on MEDIA_TEST_SUPPORT
-	depends on PCI && VIDEO_V4L2
+	depends on PCI && VIDEO_DEV
 	select VIDEOBUF2_MEMOPS
 	select VIDEOBUF2_DMA_CONTIG
 	help
diff --git a/drivers/media/pci/bt8xx/Kconfig b/drivers/media/pci/bt8xx/Kconfig
index 3f56decbb681..927190281bd5 100644
--- a/drivers/media/pci/bt8xx/Kconfig
+++ b/drivers/media/pci/bt8xx/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_BT848
 	tristate "BT848 Video For Linux"
-	depends on VIDEO_DEV && PCI && I2C && VIDEO_V4L2
+	depends on PCI && I2C && VIDEO_DEV
 	select I2C_ALGOBIT
 	select VIDEOBUF_DMA_SG
 	depends on RC_CORE
diff --git a/drivers/media/pci/cobalt/Kconfig b/drivers/media/pci/cobalt/Kconfig
index d8d9ea6b09bc..e13e36141199 100644
--- a/drivers/media/pci/cobalt/Kconfig
+++ b/drivers/media/pci/cobalt/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_COBALT
 	tristate "Cisco Cobalt support"
-	depends on VIDEO_V4L2 && I2C
+	depends on VIDEO_DEV && I2C
 	depends on PCI_MSI && MTD_COMPLEX_MAPPINGS
 	depends on (GPIOLIB && DRM_I2C_ADV7511=n) || COMPILE_TEST
 	depends on SND
diff --git a/drivers/media/pci/cx18/Kconfig b/drivers/media/pci/cx18/Kconfig
index 7074a1071302..a4e32fdcfd3d 100644
--- a/drivers/media/pci/cx18/Kconfig
+++ b/drivers/media/pci/cx18/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_CX18
 	tristate "Conexant cx23418 MPEG encoder support"
-	depends on VIDEO_V4L2 && DVB_CORE && PCI && I2C
+	depends on VIDEO_DEV && DVB_CORE && PCI && I2C
 	select I2C_ALGOBIT
 	select VIDEOBUF_VMALLOC
 	depends on RC_CORE
diff --git a/drivers/media/pci/dt3155/Kconfig b/drivers/media/pci/dt3155/Kconfig
index a3d24b8a719b..2b76de195aa5 100644
--- a/drivers/media/pci/dt3155/Kconfig
+++ b/drivers/media/pci/dt3155/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_DT3155
 	tristate "DT3155 frame grabber"
-	depends on PCI && VIDEO_DEV && VIDEO_V4L2
+	depends on PCI && VIDEO_DEV
 	select VIDEOBUF2_DMA_CONTIG
 	help
 	  Enables dt3155 device driver for the DataTranslation DT3155 frame grabber.
diff --git a/drivers/media/pci/intel/ipu3/Kconfig b/drivers/media/pci/intel/ipu3/Kconfig
index dce8274c81e6..39bd3be0b43d 100644
--- a/drivers/media/pci/intel/ipu3/Kconfig
+++ b/drivers/media/pci/intel/ipu3/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_IPU3_CIO2
 	tristate "Intel ipu3-cio2 driver"
-	depends on VIDEO_V4L2 && PCI
+	depends on VIDEO_DEV && PCI
 	depends on ACPI || COMPILE_TEST
 	depends on X86
 	select MEDIA_CONTROLLER
diff --git a/drivers/media/pci/ivtv/Kconfig b/drivers/media/pci/ivtv/Kconfig
index e70502902b73..9be52101bc4f 100644
--- a/drivers/media/pci/ivtv/Kconfig
+++ b/drivers/media/pci/ivtv/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_IVTV
 	tristate "Conexant cx23416/cx23415 MPEG encoder/decoder support"
-	depends on VIDEO_V4L2 && PCI && I2C
+	depends on VIDEO_DEV && PCI && I2C
 	select I2C_ALGOBIT
 	depends on RC_CORE
 	select VIDEO_TUNER
diff --git a/drivers/media/pci/meye/Kconfig b/drivers/media/pci/meye/Kconfig
index fed1f4a01817..3e69b66f1a5b 100644
--- a/drivers/media/pci/meye/Kconfig
+++ b/drivers/media/pci/meye/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_MEYE
 	tristate "Sony Vaio Picturebook Motion Eye Video For Linux"
-	depends on PCI && VIDEO_V4L2
+	depends on PCI && VIDEO_DEV
 	depends on SONY_LAPTOP
 	depends on X86 || COMPILE_TEST
 	help
diff --git a/drivers/media/pci/saa7146/Kconfig b/drivers/media/pci/saa7146/Kconfig
index 8e83cd044075..3bbb68a0ed7b 100644
--- a/drivers/media/pci/saa7146/Kconfig
+++ b/drivers/media/pci/saa7146/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_HEXIUM_GEMINI
 	tristate "Hexium Gemini frame grabber"
-	depends on PCI && VIDEO_V4L2 && I2C
+	depends on PCI && VIDEO_DEV && I2C
 	select VIDEO_SAA7146_VV
 	help
 	  This is a video4linux driver for the Hexium Gemini frame
@@ -13,7 +13,7 @@ config VIDEO_HEXIUM_GEMINI
 
 config VIDEO_HEXIUM_ORION
 	tristate "Hexium HV-PCI6 and Orion frame grabber"
-	depends on PCI && VIDEO_V4L2 && I2C
+	depends on PCI && VIDEO_DEV && I2C
 	select VIDEO_SAA7146_VV
 	help
 	  This is a video4linux driver for the Hexium HV-PCI6 and
@@ -24,7 +24,7 @@ config VIDEO_HEXIUM_ORION
 
 config VIDEO_MXB
 	tristate "Siemens-Nixdorf 'Multimedia eXtension Board'"
-	depends on PCI && VIDEO_V4L2 && I2C
+	depends on PCI && VIDEO_DEV && I2C
 	select VIDEO_SAA7146_VV
 	select VIDEO_TUNER
 	select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/pci/sta2x11/Kconfig b/drivers/media/pci/sta2x11/Kconfig
index 27bb78513631..a96e170ab04e 100644
--- a/drivers/media/pci/sta2x11/Kconfig
+++ b/drivers/media/pci/sta2x11/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config STA2X11_VIP
 	tristate "STA2X11 VIP Video For Linux"
-	depends on PCI && VIDEO_V4L2 && VIRT_TO_BUS && I2C
+	depends on PCI && VIDEO_DEV && VIRT_TO_BUS && I2C
 	depends on STA2X11 || COMPILE_TEST
 	select GPIOLIB if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_ADV7180 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/pci/tw5864/Kconfig b/drivers/media/pci/tw5864/Kconfig
index d376d4ed65b9..111da223efb0 100644
--- a/drivers/media/pci/tw5864/Kconfig
+++ b/drivers/media/pci/tw5864/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_TW5864
 	tristate "Techwell TW5864 video/audio grabber and encoder"
-	depends on VIDEO_DEV && PCI && VIDEO_V4L2
+	depends on VIDEO_DEV && PCI
 	select VIDEOBUF2_DMA_CONTIG
 	help
 	  Support for boards based on Techwell TW5864 chip which provides
diff --git a/drivers/media/pci/tw68/Kconfig b/drivers/media/pci/tw68/Kconfig
index af0cb60337bb..ef9c0e886a09 100644
--- a/drivers/media/pci/tw68/Kconfig
+++ b/drivers/media/pci/tw68/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_TW68
 	tristate "Techwell tw68x Video For Linux"
-	depends on VIDEO_DEV && PCI && VIDEO_V4L2
+	depends on VIDEO_DEV && PCI
 	select VIDEOBUF2_DMA_SG
 	help
 	  Support for Techwell tw68xx based frame grabber boards.
diff --git a/drivers/media/pci/tw686x/Kconfig b/drivers/media/pci/tw686x/Kconfig
index 631c90868b8b..a4edad6aaf89 100644
--- a/drivers/media/pci/tw686x/Kconfig
+++ b/drivers/media/pci/tw686x/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_TW686X
 	tristate "Intersil/Techwell TW686x video capture cards"
-	depends on PCI && VIDEO_DEV && VIDEO_V4L2 && SND
+	depends on PCI && VIDEO_DEV && SND
 	select VIDEOBUF2_VMALLOC
 	select VIDEOBUF2_DMA_CONTIG
 	select VIDEOBUF2_DMA_SG