media: platform: stm32: move config to its own file

In order to better organize the platform/Kconfig, place
stm32-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/Kconfig

@@ -62,6 +62,7 @@ source "drivers/media/platform/rockchip/rga/Kconfig"
 source "drivers/media/platform/s3c-camif/Kconfig"
 source "drivers/media/platform/s5p-g2d/Kconfig"
 source "drivers/media/platform/sti/hva/Kconfig"
+source "drivers/media/platform/stm32/Kconfig"
 
 config VIDEO_MUX
 	tristate "Video Multiplexer"
@@ -77,21 +78,6 @@ config VIDEO_MUX
 
 source "drivers/media/platform/intel/Kconfig"
 
-config VIDEO_STM32_DCMI
-	tristate "STM32 Digital Camera Memory Interface (DCMI) support"
-	depends on V4L_PLATFORM_DRIVERS
-	depends on VIDEO_V4L2 && OF
-	depends on ARCH_STM32 || COMPILE_TEST
-	select VIDEOBUF2_DMA_CONTIG
-	select MEDIA_CONTROLLER
-	select V4L2_FWNODE
-	help
-	  This module makes the STM32 Digital Camera Memory Interface (DCMI)
-	  available as a v4l2 device.
-
-	  To compile this driver as a module, choose M here: the module
-	  will be called stm32-dcmi.
-
 config VIDEO_ROCKCHIP_ISP1
 	tristate "Rockchip Image Signal Processing v1 Unit driver"
 	depends on V4L_PLATFORM_DRIVERS
@@ -223,19 +209,6 @@ config VIDEO_STI_DELTA_DRIVER
 	select V4L2_MEM2MEM_DEV
 	select RPMSG
 
-config VIDEO_STM32_DMA2D
-	tristate "STM32 Chrom-Art Accelerator (DMA2D)"
-	depends on V4L_MEM2MEM_DRIVERS
-	depends on VIDEO_DEV && VIDEO_V4L2
-	depends on ARCH_STM32 || COMPILE_TEST
-	select VIDEOBUF2_DMA_CONTIG
-	select V4L2_MEM2MEM_DEV
-	help
-	  Enables DMA2D hardware support on stm32.
-
-	  The STM32 DMA2D is a memory-to-memory engine for pixel conversion
-	  and specialized DMA dedicated to image manipulation.
-
 config VIDEO_TI_VPE
 	tristate "TI VPE (Video Processing Engine) driver"
 	depends on V4L_MEM2MEM_DRIVERS

drivers/media/platform/stm32/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+
+# V4L drivers
+config VIDEO_STM32_DCMI
+	tristate "STM32 Digital Camera Memory Interface (DCMI) support"
+	depends on V4L_PLATFORM_DRIVERS
+	depends on VIDEO_V4L2 && OF
+	depends on ARCH_STM32 || COMPILE_TEST
+	select VIDEOBUF2_DMA_CONTIG
+	select MEDIA_CONTROLLER
+	select V4L2_FWNODE
+	help
+	  This module makes the STM32 Digital Camera Memory Interface (DCMI)
+	  available as a v4l2 device.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called stm32-dcmi.
+
+# Mem2mem drivers
+config VIDEO_STM32_DMA2D
+	tristate "STM32 Chrom-Art Accelerator (DMA2D)"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_STM32 || COMPILE_TEST
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	help
+	  Enables DMA2D hardware support on stm32.
+
+	  The STM32 DMA2D is a memory-to-memory engine for pixel conversion
+	  and specialized DMA dedicated to image manipulation.