Print debug level information on returned frame descriptors.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-subdev.c | 35 ++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 7b087be3ff4f..abd9275febdb 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -309,9 +309,42 @@ static int call_set_selection(struct v4l2_subdev *sd,
static int call_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd)
{
+ unsigned int i;
+ int ret;
+
memset(fd, 0, sizeof(*fd));
- return sd->ops->pad->get_frame_desc(sd, pad, fd);
+ ret = sd->ops->pad->get_frame_desc(sd, pad, fd);
+ if (ret)
+ return ret;
+
+ dev_dbg(sd->dev, "Frame descriptor\n");
+ dev_dbg(sd->dev, "\ttype %s\n",
+ fd->type == V4L2_MBUS_FRAME_DESC_TYPE_PARALLEL ? "parallel" :
+ fd->type == V4L2_MBUS_FRAME_DESC_TYPE_CSI2 ? "CSI-2" :
+ "unknown");
+ dev_dbg(sd->dev, "\tentries %u\n", fd->num_entries);
+
+ for (i = 0; i < fd->num_entries; i++) {
+ struct v4l2_mbus_frame_desc_entry *entry = &fd->entry[i];
+
+ dev_dbg(sd->dev, "\tentry %u\n", i);
+ dev_dbg(sd->dev, "\tflags%s%s\n",
+ entry->flags & V4L2_MBUS_FRAME_DESC_FL_LEN_MAX ?
+ " LEN_MAX" : "",
+ entry->flags & V4L2_MBUS_FRAME_DESC_FL_BLOB ?
+ " BLOB" : "");
+ dev_dbg(sd->dev, "\t\tstream %u\n", entry->stream);
+ dev_dbg(sd->dev, "\t\tpixelcode 0x%4.4x\n", entry->pixelcode);
+ dev_dbg(sd->dev, "\t\tlength %u\n", entry->length);
+
+ if (fd->type == V4L2_MBUS_FRAME_DESC_TYPE_CSI2) {
+ dev_dbg(sd->dev, "\t\tvc %u\n", entry->bus.csi2.vc);
+ dev_dbg(sd->dev, "\t\tdt 0x%2.2x\n", entry->bus.csi2.dt);
+ }
+ }
+
+ return 0;
}
static inline int check_edid(struct v4l2_subdev *sd,
--
2.39.2
