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media: synopsys: csi2rx: implement .get_frame_desc() callback

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Implement the .get_frame_desc() callback to fetch information from the
remote endpoint.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Frank Li 2026-02-16 14:18:41 -05:00 committed by Hans Verkuil
parent 6fb44d1492
commit 6f4699ae1e
1 changed files with 21 additions and 0 deletions
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21
drivers/media/platform/synopsys/dw-mipi-csi2rx.c
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@ -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,