Re: [PATCH v2 2/3] media: platform: Add Renesas Input Video Control block driver

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On Di, 2025-06-24 at 13:35 +0100, Daniel Scally wrote:
> Add a driver for the Input Video Control block in an RZ/V2H SoC which
> feeds data into the Arm Mali-C55 ISP.
> 
> Signed-off-by: Daniel Scally <dan.scally@xxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> 
> 	- Added selects and depends statements to Kconfig entry
> 	- Fixed copyright year
> 	- Stopped including in .c files headers already included in .h
> 	- Fixed uninitialized variable in iterator
> 	- Only check vvalid member in interrupt function and wait
> 	  unconditionally elsewhere
> 	- __maybe_unused for the PM ops
> 	- Initialise the subdevice after setting up PM
> 	- Fixed the remove function for the driver to actually do
> 	  something.
> 	- Some minor formatting changes
> 	- Fixed the quantization member for the format
> 	- Changes accounting for the v2 of the media jobs framework
> 	- Change min_queued_buffers to 0
> ---
>  drivers/media/platform/renesas/Kconfig             |   2 +
>  drivers/media/platform/renesas/Makefile            |   1 +
>  drivers/media/platform/renesas/rzv2h-ivc/Kconfig   |  15 +
>  drivers/media/platform/renesas/rzv2h-ivc/Makefile  |   5 +
>  .../platform/renesas/rzv2h-ivc/rzv2h-ivc-dev.c     | 237 +++++++
>  .../platform/renesas/rzv2h-ivc/rzv2h-ivc-subdev.c  | 379 ++++++++++++
>  .../platform/renesas/rzv2h-ivc/rzv2h-ivc-video.c   | 678 +++++++++++++++++++++
>  .../media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h   | 133 ++++
>  8 files changed, 1450 insertions(+)
> 
> diff --git a/drivers/media/platform/renesas/Kconfig b/drivers/media/platform/renesas/Kconfig
> index 27a54fa7908384f2e8200f0f7283a82b0ae8435c..5462e524c3708be87a50dd80d4b4017a2466aa99 100644
> --- a/drivers/media/platform/renesas/Kconfig
> +++ b/drivers/media/platform/renesas/Kconfig
> @@ -42,6 +42,8 @@ config VIDEO_SH_VOU
>  source "drivers/media/platform/renesas/rcar-isp/Kconfig"
>  source "drivers/media/platform/renesas/rcar-vin/Kconfig"
>  source "drivers/media/platform/renesas/rzg2l-cru/Kconfig"
> +source "drivers/media/platform/renesas/rzv2h-ivc/Kconfig"
> +
>  
>  # Mem2mem drivers
>  
> diff --git a/drivers/media/platform/renesas/Makefile b/drivers/media/platform/renesas/Makefile
> index 1127259c09d6a51b70803e76c495918e06777f67..b6b4abf01db246aaf8269b8027efee9b0b32083a 100644
> --- a/drivers/media/platform/renesas/Makefile
> +++ b/drivers/media/platform/renesas/Makefile
> @@ -6,6 +6,7 @@
>  obj-y += rcar-isp/
>  obj-y += rcar-vin/
>  obj-y += rzg2l-cru/
> +obj-y += rzv2h-ivc/
>  obj-y += vsp1/
>  
>  obj-$(CONFIG_VIDEO_RCAR_CSI2) += rcar-csi2.o
> diff --git a/drivers/media/platform/renesas/rzv2h-ivc/Kconfig b/drivers/media/platform/renesas/rzv2h-ivc/Kconfig
> new file mode 100644
> index 0000000000000000000000000000000000000000..3df8ff585c36fe7c74e1eb0408b344cbc2b4d898
> --- /dev/null
> +++ b/drivers/media/platform/renesas/rzv2h-ivc/Kconfig
> @@ -0,0 +1,15 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> +config VIDEO_RZV2H_IVC
> +	tristate "Renesas RZ/V2H Input Video Control block driver"
> +	depends on V4L_PLATFORM_DRIVERS
> +	depends on VIDEO_DEV
> +	depends on ARCH_RENESAS || COMPILE_TEST
> +	depends on OF
> +	select VIDEOBUF2_DMA_CONTIG
> +	select MEDIA_CONTROLLER
> +	select VIDEO_V4L2_SUBDEV_API
> +	select RESET_CONTROLLER

There is no need to select RESET_CONTROLLER, the API has stubs to allow
compiling without it.

regards
Philipp





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