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

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

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

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"

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/

drivers/staging/media/deprecated/fsl-viu/Kconfig

+# 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.

drivers/staging/media/deprecated/fsl-viu/Makefile

+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_VIDEO_VIU) += fsl-viu.o

drivers/staging/media/deprecated/fsl-viu/TODO

+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).