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>

3 files changed, 17 insertions, 29 deletions

diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index d29e29645e04..58c10a2ed292 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -5,13 +5,13 @@
 
 menuconfig RADIO_ADAPTERS
 	bool "Radio Adapters"
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	depends on MEDIA_RADIO_SUPPORT
 	default y
 	help
 	  Say Y here to enable selecting AM/FM radio adapters.
 
-if RADIO_ADAPTERS && VIDEO_V4L2
+if RADIO_ADAPTERS
 
 config RADIO_TEA575X
 	tristate
@@ -20,13 +20,12 @@ source "drivers/media/radio/si470x/Kconfig"
 
 config RADIO_SI4713
 	tristate "Silicon Labs Si4713 FM Radio with RDS Transmitter support"
-	depends on VIDEO_V4L2
 
 source "drivers/media/radio/si4713/Kconfig"
 
 config RADIO_SI476X
 	tristate "Silicon Laboratories Si476x I2C FM Radio"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C
 	depends on MFD_SI476X_CORE
 	depends on SND_SOC
 	select SND_SOC_SI476X
@@ -43,7 +42,7 @@ config RADIO_SI476X
 
 config USB_MR800
 	tristate "AverMedia MR 800 USB FM radio support"
-	depends on USB && VIDEO_V4L2
+	depends on USB
 	help
 	  Say Y here if you want to connect this type of radio to your
 	  computer's USB port. Note that the audio is not digital, and
@@ -55,7 +54,7 @@ config USB_MR800
 
 config USB_DSBR
 	tristate "D-Link/GemTek USB FM radio support"
-	depends on USB && VIDEO_V4L2
+	depends on USB
 	help
 	  Say Y here if you want to connect this type of radio to your
 	  computer's USB port. Note that the audio is not digital, and
@@ -67,7 +66,7 @@ config USB_DSBR
 
 config RADIO_MAXIRADIO
 	tristate "Guillemot MAXI Radio FM 2000 radio"
-	depends on VIDEO_V4L2 && PCI
+	depends on PCI
 	select RADIO_TEA575X
 	help
 	  Choose Y here if you have this radio card.  This card may also be
@@ -118,7 +117,7 @@ config RADIO_SHARK2
 
 config USB_KEENE
 	tristate "Keene FM Transmitter USB support"
-	depends on USB && VIDEO_V4L2
+	depends on USB
 	help
 	  Say Y here if you want to connect this type of FM transmitter
 	  to your computer's USB port.
@@ -128,7 +127,7 @@ config USB_KEENE
 
 config USB_RAREMONO
 	tristate "Thanko's Raremono AM/FM/SW radio support"
-	depends on USB && VIDEO_V4L2
+	depends on USB
 	help
 	  The 'Thanko's Raremono' device contains the Si4734 chip from Silicon Labs Inc.
 	  It is one of the very few or perhaps the only consumer USB radio device
@@ -142,7 +141,7 @@ config USB_RAREMONO
 
 config USB_MA901
 	tristate "Masterkit MA901 USB FM radio support"
-	depends on USB && VIDEO_V4L2
+	depends on USB
 	help
 	  Say Y here if you want to connect this type of radio to your
 	  computer's USB port. Note that the audio is not digital, and
@@ -154,7 +153,7 @@ config USB_MA901
 
 config RADIO_TEA5764
 	tristate "TEA5764 I2C FM radio support"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C
 	help
 	  Say Y here if you want to use the TEA5764 FM chip found in
 	  EZX phones. This FM chip is present in EZX phones from Motorola,
@@ -173,7 +172,7 @@ config RADIO_TEA5764_XTAL
 
 config RADIO_SAA7706H
 	tristate "SAA7706H Car Radio DSP"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C
 	help
 	  Say Y here if you want to use the SAA7706H Car radio Digital
 	  Signal Processor, found for instance on the Russellville development
@@ -185,7 +184,7 @@ config RADIO_SAA7706H
 
 config RADIO_TEF6862
 	tristate "TEF6862 Car Radio Enhanced Selectivity Tuner"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C
 	help
 	  Say Y here if you want to use the TEF6862 Car Radio Enhanced
 	  Selectivity Tuner, found for instance on the Russellville development
@@ -197,7 +196,7 @@ config RADIO_TEF6862
 
 config RADIO_TIMBERDALE
 	tristate "Enable the Timberdale radio driver"
-	depends on MFD_TIMBERDALE && VIDEO_V4L2
+	depends on MFD_TIMBERDALE
 	depends on I2C	# for RADIO_SAA7706H
 	select RADIO_TEF6862
 	select RADIO_SAA7706H
@@ -208,7 +207,7 @@ config RADIO_TIMBERDALE
 
 config RADIO_WL1273
 	tristate "Texas Instruments WL1273 I2C FM Radio"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C
 	select MFD_CORE
 	select MFD_WL1273_CORE
 	select FW_LOADER
@@ -245,7 +244,6 @@ config RADIO_ISA
 config RADIO_CADET
 	tristate "ADS Cadet AM/FM Tuner"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	help
 	  Choose Y here if you have one of these AM/FM radio cards, and then
 	  fill in the port address below.
@@ -256,7 +254,6 @@ config RADIO_CADET
 config RADIO_RTRACK
 	tristate "AIMSlab RadioTrack (aka RadioReveal) support"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have one of these FM radio cards, and then fill
@@ -288,7 +285,6 @@ config RADIO_RTRACK_PORT
 config RADIO_RTRACK2
 	tristate "AIMSlab RadioTrack II support"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have this FM radio card, and then fill in the
@@ -312,7 +308,6 @@ config RADIO_RTRACK2_PORT
 config RADIO_AZTECH
 	tristate "Aztech/Packard Bell Radio"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have one of these FM radio cards, and then fill
@@ -333,7 +328,6 @@ config RADIO_AZTECH_PORT
 config RADIO_GEMTEK
 	tristate "GemTek Radio card (or compatible) support"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have this FM radio card, and then fill in the
@@ -374,7 +368,7 @@ config RADIO_GEMTEK_PROBE
 config RADIO_MIROPCM20
 	tristate "miroSOUND PCM20 radio"
 	depends on ISA || COMPILE_TEST
-	depends on ISA_DMA_API && VIDEO_V4L2 && SND
+	depends on ISA_DMA_API && SND
 	select SND_ISA
 	select SND_MIRO
 	help
@@ -389,7 +383,6 @@ config RADIO_MIROPCM20
 config RADIO_SF16FMI
 	tristate "SF16-FMI/SF16-FMP/SF16-FMD Radio"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	help
 	  Choose Y here if you have one of these FM radio cards.
 
@@ -399,7 +392,6 @@ config RADIO_SF16FMI
 config RADIO_SF16FMR2
 	tristate "SF16-FMR2/SF16-FMD2 Radio"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_TEA575X
 	help
 	  Choose Y here if you have one of these FM radio cards.
@@ -410,7 +402,6 @@ config RADIO_SF16FMR2
 config RADIO_TERRATEC
 	tristate "TerraTec ActiveRadio ISA Standalone"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have this FM radio card.
@@ -425,7 +416,6 @@ config RADIO_TERRATEC
 config RADIO_TRUST
 	tristate "Trust FM radio card"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  This is a driver for the Trust FM radio cards. Say Y if you have
@@ -449,7 +439,6 @@ config RADIO_TRUST_PORT
 config RADIO_TYPHOON
 	tristate "Typhoon Radio (a.k.a. EcoRadio)"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have one of these FM radio cards, and then fill
@@ -484,7 +473,6 @@ config RADIO_TYPHOON_MUTEFREQ
 config RADIO_ZOLTRIX
 	tristate "Zoltrix Radio"
 	depends on ISA || COMPILE_TEST
-	depends on VIDEO_V4L2
 	select RADIO_ISA
 	help
 	  Choose Y here if you have one of these FM radio cards, and then fill
diff --git a/drivers/media/radio/si470x/Kconfig b/drivers/media/radio/si470x/Kconfig
index 7161bd6cd13c..9f7d35b04a13 100644
--- a/drivers/media/radio/si470x/Kconfig
+++ b/drivers/media/radio/si470x/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config RADIO_SI470X
 	tristate "Silicon Labs Si470x FM Radio Receiver support"
-	depends on VIDEO_V4L2
+	depends on VIDEO_DEV
 	help
 	  This is a driver for devices with the Silicon Labs SI470x
 	  chip (either via USB or I2C buses).
diff --git a/drivers/media/radio/wl128x/Kconfig b/drivers/media/radio/wl128x/Kconfig
index d5ae3388d3db..3e7713872e3f 100644
--- a/drivers/media/radio/wl128x/Kconfig
+++ b/drivers/media/radio/wl128x/Kconfig
@@ -4,7 +4,7 @@
 #
 config RADIO_WL128X
 	tristate "Texas Instruments WL128x FM Radio"
-	depends on VIDEO_V4L2 && RFKILL && TTY && TI_ST
+	depends on VIDEO_DEV && RFKILL && TTY && TI_ST
 	depends on GPIOLIB || COMPILE_TEST
 	help
 	  Choose Y here if you have this FM radio chip.