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charset="utf-8" From: Lad Prabhakar 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 Reviewed-by: Laurent Pinchart --- v2->v3 - Updated subject line v1->v2 - Collected RB tag --- .../platform/renesas/rzg2l-cru/rzg2l-csi2.c | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/driver= s/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c index abacf53b944c..3fd0be6a3b65 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c @@ -582,6 +582,25 @@ static int rzg2l_csi2_enum_frame_size(struct v4l2_subd= ev *sd, return 0; } =20 +static int rzg2l_csi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int = pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct rzg2l_csi2 *csi2 =3D sd_to_csi2(sd); + struct media_pad *remote_pad; + + if (!csi2->remote_source) + return -ENODEV; + + remote_pad =3D 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 =3D { .s_stream =3D rzg2l_csi2_s_stream, .pre_streamon =3D rzg2l_csi2_pre_streamon, @@ -593,6 +612,7 @@ static const struct v4l2_subdev_pad_ops rzg2l_csi2_pad_= ops =3D { .enum_frame_size =3D rzg2l_csi2_enum_frame_size, .set_fmt =3D rzg2l_csi2_set_format, .get_fmt =3D v4l2_subdev_get_fmt, + .get_frame_desc =3D rzg2l_csi2_get_frame_desc, }; =20 static const struct v4l2_subdev_ops rzg2l_csi2_subdev_ops =3D { --=20 2.43.0