Hello Paul, Am Dienstag, 14. Juni 2022, 21:10:42 CEST schrieb Paul Elder: > From: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > When a link validation failure occurs, print a debug message to help > diagnosing the cause. > > Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > --- > .../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; > }