media: split test drivers from platform directory

When the first test device was added (vivi.c), there were just
one file. I was too lazy on that time to create a separate
directory just for it, so I kept it together with platform.

Now, we have vivid, vicodec, vim2m and vimc. Also, a new
virtual driver has been prepared to support DVB API.

So, it is time to solve this mess, by placing test stuff
on a separate directory.

It should be noticed that we also have some skeleton drivers
(for V4L and for DVB). For now, we'll keep them separate,
as they're not really test drivers, but instead, just
examples. The DVB frontend ones will likely be part of a new DVB
test driver. By that time, it should make sense to move them
here as well.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/Kconfig

@@ -101,6 +101,19 @@ config MEDIA_PLATFORM_SUPPORT
 
 	  Say Y when you want to be able so see such devices.
 
+config MEDIA_TEST_SUPPORT
+	bool "Test drivers support"
+	help
+	  Those drivers should not be used on production Kernels, but
+	  can be useful on debug ones. It enables several dummy drivers
+	  that simulate a real hardware. Very useful to test userspace
+	  applications and to validate if the subsystem core is doesn't
+	  have regressions.
+
+	  Say Y if you want to use some virtual test driver.
+
+	  In case of doubts, say N.
+
 source "drivers/media/cec/Kconfig"
 
 source "drivers/media/mc/Kconfig"
@@ -180,6 +193,7 @@ source "drivers/media/radio/Kconfig"
 
 if MEDIA_PLATFORM_SUPPORT
 source "drivers/media/platform/Kconfig"
+source "drivers/media/test_drivers/Kconfig"
 source "drivers/media/mmc/Kconfig"
 endif
 

drivers/media/platform/Kconfig

@@ -529,29 +529,6 @@ config VIDEO_TI_SC
 config VIDEO_TI_CSC
 	tristate
 
-menuconfig V4L_TEST_DRIVERS
-	bool "Media test drivers"
-	depends on MEDIA_CAMERA_SUPPORT
-
-if V4L_TEST_DRIVERS
-
-source "drivers/media/platform/vimc/Kconfig"
-
-source "drivers/media/platform/vivid/Kconfig"
-
-config VIDEO_VIM2M
-	tristate "Virtual Memory-to-Memory Driver"
-	depends on VIDEO_DEV && VIDEO_V4L2
-	select VIDEOBUF2_VMALLOC
-	select V4L2_MEM2MEM_DEV
-	help
-	  This is a virtual test device for the memory-to-memory driver
-	  framework.
-
-source "drivers/media/platform/vicodec/Kconfig"
-
-endif #V4L_TEST_DRIVERS
-
 menuconfig DVB_PLATFORM_DRIVERS
 	bool "DVB platform devices"
 	depends on MEDIA_DIGITAL_TV_SUPPORT

drivers/media/platform/Makefile

@@ -14,11 +14,6 @@ obj-$(CONFIG_VIDEO_PXA27x)	+= pxa_camera.o
 
 obj-$(CONFIG_VIDEO_VIU) += fsl-viu.o
 
-obj-$(CONFIG_VIDEO_VIMC)		+= vimc/
-obj-$(CONFIG_VIDEO_VIVID)		+= vivid/
-obj-$(CONFIG_VIDEO_VIM2M)		+= vim2m.o
-obj-$(CONFIG_VIDEO_VICODEC)		+= vicodec/
-
 obj-y	+= ti-vpe/
 
 obj-$(CONFIG_VIDEO_MX2_EMMAPRP)		+= mx2_emmaprp.o

drivers/media/test_drivers/Kconfig

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+if MEDIA_TEST_SUPPORT
+
+menuconfig V4L_TEST_DRIVERS
+	bool "V4L test drivers"
+	depends on MEDIA_CAMERA_SUPPORT
+
+if V4L_TEST_DRIVERS
+
+source "drivers/media/test_drivers/vimc/Kconfig"
+
+source "drivers/media/test_drivers/vivid/Kconfig"
+
+config VIDEO_VIM2M
+	tristate "Virtual Memory-to-Memory Driver"
+	depends on VIDEO_DEV && VIDEO_V4L2
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	help
+	  This is a virtual test device for the memory-to-memory driver
+	  framework.
+
+source "drivers/media/test_drivers/vicodec/Kconfig"
+
+endif #V4L_TEST_DRIVERS
+
+endif #MEDIA_TEST_SUPPORT

drivers/media/test_drivers/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the test drivers.
+#
+
+obj-$(CONFIG_VIDEO_VIMC)		+= vimc/
+obj-$(CONFIG_VIDEO_VIVID)		+= vivid/
+obj-$(CONFIG_VIDEO_VIM2M)		+= vim2m.o
+obj-$(CONFIG_VIDEO_VICODEC)		+= vicodec/