media: zr364xx: deprecate this driver

Deprecate the zr364xx driver. This driver does not use the vb2 framework
for video streaming, instead it uses the old videobuf framework.

We want to get rid of these old drivers, so deprecated it for future
removal.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

9 files changed, 15 insertions, 5 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 47b9118ee992..e26da9b8e277 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21218,7 +21218,7 @@ S:	Maintained
 W:	http://royale.zerezo.com/zr364xx/
 T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/admin-guide/media/zr364xx*
-F:	drivers/media/usb/zr364xx/
+F:	drivers/staging/media/deprecated/zr364xx/
 
 USER-MODE LINUX (UML)
 M:	Richard Weinberger <richard@nod.at>
diff --git a/drivers/media/usb/Kconfig b/drivers/media/usb/Kconfig
index afbb8dd28b5b..3d0138f8573c 100644
--- a/drivers/media/usb/Kconfig
+++ b/drivers/media/usb/Kconfig
@@ -18,7 +18,6 @@ source "drivers/media/usb/pwc/Kconfig"
 source "drivers/media/usb/s2255/Kconfig"
 source "drivers/media/usb/usbtv/Kconfig"
 source "drivers/media/usb/uvc/Kconfig"
-source "drivers/media/usb/zr364xx/Kconfig"
 
 endif
 
diff --git a/drivers/media/usb/Makefile b/drivers/media/usb/Makefile
index fa8e16ff9b03..7fccc6604b1f 100644
--- a/drivers/media/usb/Makefile
+++ b/drivers/media/usb/Makefile
@@ -12,7 +12,6 @@ obj-y += s2255/
 obj-y += siano/
 obj-y += ttusb-budget/
 obj-y += ttusb-dec/
-obj-y += zr364xx/
 
 # Please keep it alphabetically sorted by Kconfig name
 # (e. g. LC_ALL=C sort Makefile)
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
index ed3e484603d7..84f627ccf63e 100644
--- a/drivers/staging/media/Kconfig
+++ b/drivers/staging/media/Kconfig
@@ -58,6 +58,7 @@ if STAGING_MEDIA_DEPRECATED
 source "drivers/staging/media/deprecated/cpia2/Kconfig"
 source "drivers/staging/media/deprecated/meye/Kconfig"
 source "drivers/staging/media/deprecated/stkwebcam/Kconfig"
+source "drivers/staging/media/deprecated/zr364xx/Kconfig"
 endif
 
 endif
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index 822c70ab4c0b..ed7e5a61fc00 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -12,4 +12,5 @@ obj-$(CONFIG_VIDEO_SUNXI)	+= sunxi/
 obj-$(CONFIG_VIDEO_TEGRA)	+= tegra-video/
 obj-$(CONFIG_VIDEO_HANTRO)	+= hantro/
 obj-$(CONFIG_VIDEO_IPU3_IMGU)	+= ipu3/
+obj-$(CONFIG_USB_ZR364XX)	+= deprecated/zr364xx/
 obj-$(CONFIG_DVB_AV7110)	+= av7110/
diff --git a/drivers/media/usb/zr364xx/Kconfig b/drivers/staging/media/deprecated/zr364xx/Kconfig
index a9fb02566c4b..ea29c9d8dca2 100644
--- a/drivers/media/usb/zr364xx/Kconfig
+++ b/drivers/staging/media/deprecated/zr364xx/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config USB_ZR364XX
-	tristate "USB ZR364XX Camera support"
-	depends on VIDEO_DEV
+	tristate "USB ZR364XX Camera support (DEPRECATED)"
+	depends on USB && VIDEO_DEV
 	select VIDEOBUF_GEN
 	select VIDEOBUF_VMALLOC
 	help
@@ -10,6 +10,9 @@ config USB_ZR364XX
 	  See <file:Documentation/admin-guide/media/zr364xx.rst> for more info
 	  and list of supported cameras.
 
+	  This driver is deprecated and is scheduled for removal by
+	  the beginning of 2023. See the TODO file for more information.
+
 	  To compile this driver as a module, choose M here: the
 	  module will be called zr364xx.
 
diff --git a/drivers/media/usb/zr364xx/Makefile b/drivers/staging/media/deprecated/zr364xx/Makefile
index edab017d499c..edab017d499c 100644
--- a/drivers/media/usb/zr364xx/Makefile
+++ b/drivers/staging/media/deprecated/zr364xx/Makefile
diff --git a/drivers/staging/media/deprecated/zr364xx/TODO b/drivers/staging/media/deprecated/zr364xx/TODO
new file mode 100644
index 000000000000..ecb30a429689
--- /dev/null
+++ b/drivers/staging/media/deprecated/zr364xx/TODO
@@ -0,0 +1,7 @@
+This is one of the few drivers still not using the vb2
+framework, so this driver is now deprecated with the intent of
+removing it altogether by the beginning of 2023.
+
+In order to keep this driver it has to be converted to vb2.
+If someone is interested in doing this work, then contact the
+linux-media mailinglist (https://linuxtv.org/lists.php).
diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/staging/media/deprecated/zr364xx/zr364xx.c
index 538a330046ec..538a330046ec 100644
--- a/drivers/media/usb/zr364xx/zr364xx.c
+++ b/drivers/staging/media/deprecated/zr364xx/zr364xx.c