(EXT) [PATCH 10/55] media: rkisp1: cap: Print debug message on failed link validation

[Alexander Stein]

Hello Paul,

Am Dienstag, 14. Juni 2022, 21:10:42 CEST schrieb Paul Elder:
> From: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> 
> When a link validation failure occurs, print a debug message to help
> diagnosing the cause.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>  .../media/platform/rockchip/rkisp1/rkisp1-capture.c    | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index
> 94819e6c23e2..94a0d787a312 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> @@ -1294,8 +1294,16 @@ static int rkisp1_capture_link_validate(struct
> media_link *link)
> 
>  	if (sd_fmt.format.height != cap->pix.fmt.height ||
>  	    sd_fmt.format.width != cap->pix.fmt.width ||
> -	    sd_fmt.format.code != fmt->mbus)
> +	    sd_fmt.format.code != fmt->mbus) {
> +		dev_dbg(cap->rkisp1->dev,

I wonder if a dev_warn is more suitable here.

Best regards,
Alexander

> +			"link '%s':%u -> '%s':%u not valid: 0x%04x/
%ux%u != 0x%04x/%ux%u",
> +			link->source->entity->name, link->source-
>index,
> +			link->sink->entity->name, link->sink->index,
> +			sd_fmt.format.code, sd_fmt.format.width,
> +			sd_fmt.format.height, fmt->mbus, cap-
>pix.fmt.width,
> +			cap->pix.fmt.height);
>  		return -EPIPE;
> +	}
> 
>  	return 0;
>  }