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charset="utf-8" From: Lad Prabhakar Implement the `.link_validate()` callback for the video node and move the format checking into this function. This change allows the removal of `rzg2l_cru_mc_validate_format()`. Note, the fmt.format.code and fmt.format.field checks have be dropped as the subdev .set_fmt() handler ensures that those fields always hold valid values. Suggested-by: Laurent Pinchart Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart --- .../platform/renesas/rzg2l-cru/rzg2l-video.c | 82 +++++++++---------- 1 file changed, 38 insertions(+), 44 deletions(-) diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drive= rs/media/platform/renesas/rzg2l-cru/rzg2l-video.c index 0cc69a7440bf..df6114cbe5c7 100644 --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c @@ -189,46 +189,6 @@ static void rzg2l_cru_buffer_queue(struct vb2_buffer *= vb) spin_unlock_irqrestore(&cru->qlock, flags); } =20 -static int rzg2l_cru_mc_validate_format(struct rzg2l_cru_dev *cru, - struct v4l2_subdev *sd, - struct media_pad *pad) -{ - struct v4l2_subdev_format fmt =3D { - .which =3D V4L2_SUBDEV_FORMAT_ACTIVE, - }; - - fmt.pad =3D pad->index; - if (v4l2_subdev_call_state_active(sd, pad, get_fmt, &fmt)) - return -EPIPE; - - switch (fmt.format.code) { - case MEDIA_BUS_FMT_UYVY8_1X16: - break; - default: - return -EPIPE; - } - - switch (fmt.format.field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_NONE: - case V4L2_FIELD_INTERLACED_TB: - case V4L2_FIELD_INTERLACED_BT: - case V4L2_FIELD_INTERLACED: - case V4L2_FIELD_SEQ_TB: - case V4L2_FIELD_SEQ_BT: - break; - default: - return -EPIPE; - } - - if (fmt.format.width !=3D cru->format.width || - fmt.format.height !=3D cru->format.height) - return -EPIPE; - - return 0; -} - static void rzg2l_cru_set_slot_addr(struct rzg2l_cru_dev *cru, int slot, dma_addr_t addr) { @@ -532,10 +492,6 @@ static int rzg2l_cru_set_stream(struct rzg2l_cru_dev *= cru, int on) return stream_off_ret; } =20 - ret =3D rzg2l_cru_mc_validate_format(cru, sd, pad); - if (ret) - return ret; - pipe =3D media_entity_pipeline(&sd->entity) ? : &cru->vdev.pipe; ret =3D video_device_pipeline_start(&cru->vdev, pipe); if (ret) @@ -986,6 +942,43 @@ static const struct v4l2_file_operations rzg2l_cru_fop= s =3D { .read =3D vb2_fop_read, }; =20 +/* -----------------------------------------------------------------------= ------ + * Media entity operations + */ + +static int rzg2l_cru_video_link_validate(struct media_link *link) +{ + struct v4l2_subdev_format fmt =3D { + .which =3D V4L2_SUBDEV_FORMAT_ACTIVE, + }; + const struct rzg2l_cru_ip_format *video_fmt; + struct v4l2_subdev *subdev; + struct rzg2l_cru_dev *cru; + int ret; + + subdev =3D media_entity_to_v4l2_subdev(link->source->entity); + fmt.pad =3D link->source->index; + ret =3D v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt); + if (ret < 0) + return ret =3D=3D -ENOIOCTLCMD ? -EINVAL : ret; + + cru =3D container_of(media_entity_to_video_device(link->sink->entity), + struct rzg2l_cru_dev, vdev); + video_fmt =3D rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat); + + if (fmt.format.width !=3D cru->format.width || + fmt.format.height !=3D cru->format.height || + fmt.format.field !=3D cru->format.field || + video_fmt->code !=3D fmt.format.code) + return -EPIPE; + + return 0; +} + +static const struct media_entity_operations rzg2l_cru_video_media_ops =3D { + .link_validate =3D rzg2l_cru_video_link_validate, +}; + static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru) { struct video_device *vdev =3D &cru->vdev; @@ -997,6 +990,7 @@ static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *c= ru) vdev->lock =3D &cru->lock; vdev->device_caps =3D V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; vdev->device_caps |=3D V4L2_CAP_IO_MC; + vdev->entity.ops =3D &rzg2l_cru_video_media_ops; vdev->fops =3D &rzg2l_cru_fops; vdev->ioctl_ops =3D &rzg2l_cru_ioctl_ops; =20 --=20 2.43.0