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media: rzg2l-cru: csi2: Implement .get_frame_desc()

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The RZ/G2L CRU requires information about which VCx to process data from,
among the four available VCs. To obtain this information, the
.get_frame_desc() routine is implemented. This routine, in turn, calls
.get_frame_desc() on the remote sensor connected to the CSI2 bridge.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20241018133446.223516-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Lad Prabhakar 2024-10-18 14:34:28 +01:00 committed by Hans Verkuil
parent a5754e5db3
commit 9e880cd9e9
1 changed files with 20 additions and 0 deletions
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20
drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
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@ -582,6 +582,25 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subdev *sd,
return 0;
}
static int rzg2l_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd)
{
struct rzg2l_csi2 *csi2 = sd_to_csi2(sd);
struct media_pad *remote_pad;
if (!csi2->remote_source)
return -ENODEV;
remote_pad = media_pad_remote_pad_unique(&csi2->pads[RZG2L_CSI2_SINK]);
if (IS_ERR(remote_pad)) {
dev_err(csi2->dev, "can't get source pad of %s (%ld)\n",
csi2->remote_source->name, PTR_ERR(remote_pad));
return PTR_ERR(remote_pad);
}
return v4l2_subdev_call(csi2->remote_source, pad, get_frame_desc,
remote_pad->index, fd);
}
static const struct v4l2_subdev_video_ops rzg2l_csi2_video_ops = {
.s_stream = rzg2l_csi2_s_stream,
.pre_streamon = rzg2l_csi2_pre_streamon,
@ -593,6 +612,7 @@ static const struct v4l2_subdev_pad_ops rzg2l_csi2_pad_ops = {
.enum_frame_size = rzg2l_csi2_enum_frame_size,
.set_fmt = rzg2l_csi2_set_format,
.get_fmt = v4l2_subdev_get_fmt,
.get_frame_desc = rzg2l_csi2_get_frame_desc,
};
static const struct v4l2_subdev_ops rzg2l_csi2_subdev_ops = {