media: fsl-viu: deprecate this driver

Deprecate the fsl-viu 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 <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

8 files changed, 26 insertions, 13 deletions

diff --git a/drivers/media/platform/nxp/Kconfig b/drivers/media/platform/nxp/Kconfig
index 4c76656e353e..5917634889b5 100644
--- a/drivers/media/platform/nxp/Kconfig
+++ b/drivers/media/platform/nxp/Kconfig
@@ -15,18 +15,6 @@ config VIDEO_IMX_MIPI_CSIS
 	  Video4Linux2 sub-device driver for the MIPI CSI-2 CSIS receiver
 	  v3.3/v3.6.3 found on some i.MX7 and i.MX8 SoCs.
 
-config VIDEO_VIU
-	tristate "NXP VIU Video Driver"
-	depends on V4L_PLATFORM_DRIVERS
-	depends on VIDEO_DEV && (PPC_MPC512x || COMPILE_TEST) && I2C
-	select VIDEOBUF_DMA_CONTIG
-	help
-	  Support for Freescale VIU video driver. This device captures
-	  video data, or overlays video on DIU frame buffer.
-
-	  Say Y here if you want to enable VIU device on MPC5121e Rev2+.
-	  In doubt, say N.
-
 # mem2mem drivers
 
 config VIDEO_IMX_PXP
diff --git a/drivers/media/platform/nxp/Makefile b/drivers/media/platform/nxp/Makefile
index 22ba28ac6d63..81ab304ef31c 100644
--- a/drivers/media/platform/nxp/Makefile
+++ b/drivers/media/platform/nxp/Makefile
@@ -6,4 +6,3 @@ obj-y += imx-jpeg/
 obj-$(CONFIG_VIDEO_IMX_MIPI_CSIS) += imx-mipi-csis.o
 obj-$(CONFIG_VIDEO_IMX_PXP) += imx-pxp.o
 obj-$(CONFIG_VIDEO_MX2_EMMAPRP) += mx2_emmaprp.o
-obj-$(CONFIG_VIDEO_VIU) += fsl-viu.o
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
index 0a0e052e39b1..15e92b3c6342 100644
--- a/drivers/staging/media/Kconfig
+++ b/drivers/staging/media/Kconfig
@@ -56,6 +56,7 @@ menuconfig STAGING_MEDIA_DEPRECATED
 
 if STAGING_MEDIA_DEPRECATED
 source "drivers/staging/media/deprecated/cpia2/Kconfig"
+source "drivers/staging/media/deprecated/fsl-viu/Kconfig"
 source "drivers/staging/media/deprecated/meye/Kconfig"
 source "drivers/staging/media/deprecated/stkwebcam/Kconfig"
 source "drivers/staging/media/deprecated/tm6000/Kconfig"
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index b7df6302dd8e..10f7844b6681 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -13,5 +13,6 @@ obj-$(CONFIG_VIDEO_TEGRA)	+= tegra-video/
 obj-$(CONFIG_VIDEO_HANTRO)	+= hantro/
 obj-$(CONFIG_VIDEO_IPU3_IMGU)	+= ipu3/
 obj-$(CONFIG_VIDEO_TM6000)	+= deprecated/tm6000/
+obj-$(CONFIG_VIDEO_VIU)		+= deprecated/fsl-viu/
 obj-$(CONFIG_USB_ZR364XX)	+= deprecated/zr364xx/
 obj-$(CONFIG_DVB_AV7110)	+= av7110/
diff --git a/drivers/staging/media/deprecated/fsl-viu/Kconfig b/drivers/staging/media/deprecated/fsl-viu/Kconfig
new file mode 100644
index 000000000000..399892c69a18
--- /dev/null
+++ b/drivers/staging/media/deprecated/fsl-viu/Kconfig
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_VIU
+	tristate "NXP VIU Video Driver (DEPRECATED)"
+	depends on V4L_PLATFORM_DRIVERS
+	depends on VIDEO_DEV && (PPC_MPC512x || COMPILE_TEST) && I2C
+	select VIDEOBUF_DMA_CONTIG
+	help
+	  Support for Freescale VIU video driver. This device captures
+	  video data, or overlays video on DIU frame buffer.
+
+	  This driver is deprecated and is scheduled for removal by
+	  the beginning of 2023. See the TODO file for more information.
+
+	  Say Y here if you want to enable VIU device on MPC5121e Rev2+.
+	  In doubt, say N.
diff --git a/drivers/staging/media/deprecated/fsl-viu/Makefile b/drivers/staging/media/deprecated/fsl-viu/Makefile
new file mode 100644
index 000000000000..931ec56ad08c
--- /dev/null
+++ b/drivers/staging/media/deprecated/fsl-viu/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_VIDEO_VIU) += fsl-viu.o
diff --git a/drivers/staging/media/deprecated/fsl-viu/TODO b/drivers/staging/media/deprecated/fsl-viu/TODO
new file mode 100644
index 000000000000..ecb30a429689
--- /dev/null
+++ b/drivers/staging/media/deprecated/fsl-viu/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/platform/nxp/fsl-viu.c b/drivers/staging/media/deprecated/fsl-viu/fsl-viu.c
index afc96f6db2a1..afc96f6db2a1 100644
--- a/drivers/media/platform/nxp/fsl-viu.c
+++ b/drivers/staging/media/deprecated/fsl-viu/fsl-viu.c