[PATCH v2 1/2] media: uapi: add MEDIA_BUS_FMT_METADATA_FIXED media bus format.

[Hans Verkuil]

On 20/10/2020 17:45, Dafna Hirschfeld wrote:
> MEDIA_BUS_FMT_METADATA_FIXED should be used when
> the same driver handles both sides of the link and
> the bus format is a fixed metadata format that is
> not configurable from userspace.
> The width and height will be set to 0 for this format.
> 
> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld at collabora.com>
> Acked-by: Helen Koike <helen.koike at collabora.com>
> ---
> changes since v1:
> 1. replace "This format may have 0 height and width."
> with "Width and height will be set to 0 for this format."
> and add it also to the commit log
> 2. s/meida:/media:/ in the patch subject line
> 
>  include/uapi/linux/media-bus-format.h | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
> index 84fa53ffb13f..2ce3d891d344 100644
> --- a/include/uapi/linux/media-bus-format.h
> +++ b/include/uapi/linux/media-bus-format.h
> @@ -156,4 +156,12 @@
>  /* HSV - next is	0x6002 */
>  #define MEDIA_BUS_FMT_AHSV8888_1X32		0x6001
>  
> +/*
> + * This format should be used when the same driver handles
> + * both sides of the link and the bus format is a fixed
> + * metadata format that is not configurable from userspace.
> + * Width and height will be set to 0 for this format.
> + */
> +#define MEDIA_BUS_FMT_METADATA_FIXED		0x7001
> +
>  #endif /* __LINUX_MEDIA_BUS_FORMAT_H */
> 

Documentation/userspace-api/media/v4l/subdev-formats.rst also needs to
be updated.

Regards,

	Hans