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, 9 insertions, 9 deletions

diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig
index 4605bb377574..81d1d56b9317 100644
--- a/drivers/media/tuners/Kconfig
+++ b/drivers/media/tuners/Kconfig
@@ -85,7 +85,7 @@ config MEDIA_TUNER_TEA5767
 
 config MEDIA_TUNER_MSI001
 	tristate "Mirics MSi001"
-	depends on MEDIA_SUPPORT && SPI && VIDEO_V4L2
+	depends on MEDIA_SUPPORT && SPI && VIDEO_DEV
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 	help
 	  Mirics MSi001 silicon tuner driver.
@@ -223,7 +223,7 @@ config MEDIA_TUNER_TDA18212
 
 config MEDIA_TUNER_E4000
 	tristate "Elonics E4000 silicon tuner"
-	depends on MEDIA_SUPPORT && I2C && VIDEO_V4L2
+	depends on MEDIA_SUPPORT && I2C && VIDEO_DEV
 	select REGMAP_I2C
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 	help
@@ -231,7 +231,7 @@ config MEDIA_TUNER_E4000
 
 config MEDIA_TUNER_FC2580
 	tristate "FCI FC2580 silicon tuner"
-	depends on MEDIA_SUPPORT && I2C && VIDEO_V4L2
+	depends on MEDIA_SUPPORT && I2C && VIDEO_DEV
 	select REGMAP_I2C
 	default m if !MEDIA_SUBDRV_AUTOSELECT
 	help
diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index 3f1f9af92bc9..a3a8d051dc6c 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -257,7 +257,7 @@ err:
 /*
  * V4L2 API
  */
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 static const struct v4l2_frequency_band bands[] = {
 	{
 		.type = V4L2_TUNER_RF,
@@ -654,7 +654,7 @@ static int e4000_probe(struct i2c_client *client,
 	if (ret)
 		goto err_kfree;
 
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 	/* Register controls */
 	v4l2_ctrl_handler_init(&dev->hdl, 9);
 	dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &e4000_ctrl_ops,
@@ -713,7 +713,7 @@ static int e4000_remove(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 	v4l2_ctrl_handler_free(&dev->hdl);
 #endif
 	kfree(dev);
diff --git a/drivers/media/tuners/fc2580.c b/drivers/media/tuners/fc2580.c
index 7639a305048f..1b5961bdf2d5 100644
--- a/drivers/media/tuners/fc2580.c
+++ b/drivers/media/tuners/fc2580.c
@@ -357,7 +357,7 @@ static const struct dvb_tuner_ops fc2580_dvb_tuner_ops = {
 /*
  * V4L2 API
  */
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 static const struct v4l2_frequency_band bands[] = {
 	{
 		.type = V4L2_TUNER_RF,
@@ -552,7 +552,7 @@ static int fc2580_probe(struct i2c_client *client,
 		goto err_kfree;
 	}
 
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 	/* Register controls */
 	v4l2_ctrl_handler_init(&dev->hdl, 2);
 	dev->bandwidth_auto = v4l2_ctrl_new_std(&dev->hdl, &fc2580_ctrl_ops,
@@ -594,7 +594,7 @@ static int fc2580_remove(struct i2c_client *client)
 
 	dev_dbg(&client->dev, "\n");
 
-#if IS_ENABLED(CONFIG_VIDEO_V4L2)
+#if IS_ENABLED(CONFIG_VIDEO_DEV)
 	v4l2_ctrl_handler_free(&dev->hdl);
 #endif
 	kfree(dev);