On Mon Feb 16 14:18:41 2026 -0500, Frank Li wrote:
> Implement the .get_frame_desc() callback to fetch information from the
> remote endpoint.
>
> Signed-off-by: Frank Li <[email protected]>
> Reviewed-by: Michael Riesch <[email protected]>
> Signed-off-by: Sakari Ailus <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/synopsys/dw-mipi-csi2rx.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
---
diff --git a/drivers/media/platform/synopsys/dw-mipi-csi2rx.c
b/drivers/media/platform/synopsys/dw-mipi-csi2rx.c
index f03fe0128001..bcbf109a0bfd 100644
--- a/drivers/media/platform/synopsys/dw-mipi-csi2rx.c
+++ b/drivers/media/platform/synopsys/dw-mipi-csi2rx.c
@@ -429,10 +429,31 @@ static int dw_mipi_csi2rx_disable_streams(struct
v4l2_subdev *sd,
return ret;
}
+static int
+dw_mipi_csi2rx_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_frame_desc *fd)
+{
+ struct dw_mipi_csi2rx_device *csi2 = to_csi2(sd);
+ struct v4l2_subdev *remote_sd;
+ struct media_pad *remote_pad;
+
+ remote_pad =
media_pad_remote_pad_unique(&csi2->pads[DW_MIPI_CSI2RX_PAD_SINK]);
+ if (IS_ERR(remote_pad)) {
+ dev_err(csi2->dev, "can't get remote source pad\n");
+ return PTR_ERR(remote_pad);
+ }
+
+ remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
+
+ return v4l2_subdev_call(remote_sd, pad, get_frame_desc,
+ remote_pad->index, fd);
+}
+
static const struct v4l2_subdev_pad_ops dw_mipi_csi2rx_pad_ops = {
.enum_mbus_code = dw_mipi_csi2rx_enum_mbus_code,
.get_fmt = v4l2_subdev_get_fmt,
.set_fmt = dw_mipi_csi2rx_set_fmt,
+ .get_frame_desc = dw_mipi_csi2rx_get_frame_desc,
.set_routing = dw_mipi_csi2rx_set_routing,
.enable_streams = dw_mipi_csi2rx_enable_streams,
.disable_streams = dw_mipi_csi2rx_disable_streams,
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