Provide CSI-2 bus information for the multiplexed source pad using the
frame descriptor.
Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
---
drivers/media/i2c/adv748x/adv748x-csi2.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c
b/drivers/media/i2c/adv748x/adv748x-csi2.c
index a2a6d93077204731..a43b251d0bc67a43 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -225,9 +225,37 @@ static int adv748x_csi2_set_format(struct v4l2_subdev *sd,
return ret;
}
+static int adv748x_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int
pad,
+ struct v4l2_mbus_frame_desc *fd)
+{
+ struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
+ struct v4l2_mbus_framefmt *mbusformat;
+
+ memset(fd, 0, sizeof(*fd));
+
+ if (pad != ADV748X_CSI2_SOURCE)
+ return -EINVAL;
+
+ mbusformat = adv748x_csi2_get_pad_format(sd, NULL, ADV748X_CSI2_SINK,
+ V4L2_SUBDEV_FORMAT_ACTIVE);
+ if (!mbusformat)
+ return -EINVAL;
+
+ fd->entry->stream = 0;
+ fd->entry->bus.csi2.channel = tx->vc;
+ fd->entry->bus.csi2.data_type =
+ adv748x_csi2_code_to_datatype(mbusformat->code);
+
+ fd->type = V4L2_MBUS_FRAME_DESC_TYPE_CSI2;
+ fd->num_entries = 1;
+
+ return 0;
+}
+
static const struct v4l2_subdev_pad_ops adv748x_csi2_pad_ops = {
.get_fmt = adv748x_csi2_get_format,
.set_fmt = adv748x_csi2_set_format,
+ .get_frame_desc = adv748x_csi2_get_frame_desc,
};
/*
-----------------------------------------------------------------------------
--
2.15.1
