[PATCH v4 07/10] media: staging: rkisp1: rsz: enumerate the formats on the src pad according to the capture

[Helen Koike]

On 9/1/20 8:16 AM, Dafna Hirschfeld wrote:
> Currently the resizer outputs the same media bus format
> as the input. This is wrong since the resizer is also used
> to downscale YUV formats. This patch changes the enumeration
> of the supported formats. The supported formats on the sink pad
> should be taken from the isp entity and the supported formats on
> the source pad should be taken from the capture entity.
> 
> Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld at collabora.com>

Acked-by: Helen Koike <helen.koike at collabora.com>

Thanks
Helen

> ---
>  drivers/staging/media/rkisp1/rkisp1-resizer.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/media/rkisp1/rkisp1-resizer.c b/drivers/staging/media/rkisp1/rkisp1-resizer.c
> index 066d22096a7d..0e4a2c931ab0 100644
> --- a/drivers/staging/media/rkisp1/rkisp1-resizer.c
> +++ b/drivers/staging/media/rkisp1/rkisp1-resizer.c
> @@ -437,6 +437,17 @@ static int rkisp1_rsz_enum_mbus_code(struct v4l2_subdev *sd,
>  	u32 pad = code->pad;
>  	int ret;
>  
> +	if (code->pad == RKISP1_RSZ_PAD_SRC) {
> +		/* supported mbus codes on the src are the same as in the capture */
> +		struct rkisp1_capture *cap = &rsz->rkisp1->capture_devs[rsz->id];
> +
> +		return rkisp1_cap_enum_mbus_codes(cap, code);
> +	}
> +
> +	/*
> +	 * The selfpath capture doesn't support bayer formats. Therefore the selfpath resizer
> +	 * should support only YUV422 on the sink pad
> +	 */
>  	if (rsz->id == RKISP1_SELFPATH) {
>  		if (code->index > 0)
>  			return -EINVAL;
> @@ -444,7 +455,7 @@ static int rkisp1_rsz_enum_mbus_code(struct v4l2_subdev *sd,
>  		return 0;
>  	}
>  
> -	/* supported mbus codes are the same in isp video src pad */
> +	/* supported mbus codes on the sink pad are the same as isp src pad */
>  	code->pad = RKISP1_ISP_PAD_SOURCE_VIDEO;
>  	ret = v4l2_subdev_call(&rsz->rkisp1->isp.sd, pad, enum_mbus_code,
>  			       &dummy_cfg, code);
>