diff mbox series

[v3,12/46] media: rkisp1: cap: Print debug message on failed link validation

Message ID 20220711124248.2683-13-laurent.pinchart@ideasonboard.com
State Accepted
Commit fc890f00d0d5a5dfac23d119645f44b92f299abf
Headers show
Series media: rkisp1: Cleanups to prepare for i.MX8MP support | expand

Commit Message

Laurent Pinchart July 11, 2022, 12:42 p.m. UTC 
When a link validation failure occurs, print a debug message to help
diagnosing the cause.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
---
Changes since v1:

- Add missing \n
---
 .../media/platform/rockchip/rkisp1/rkisp1-capture.c    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index 94819e6c23e2..fb14c8aa154c 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,
+			"link '%s':%u -> '%s':%u not valid: 0x%04x/%ux%u != 0x%04x/%ux%u\n",
+			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;
 }