| Message ID | 20241011173052.1088341-19-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Kieran Bingham |
| Headers | show |
| Series | media: platform: rzg2l-cru: CSI-2 and CRU enhancements | expand |
Hi Prabhakar, Thank you for the patch. On Fri, Oct 11, 2024 at 06:30:48PM +0100, Prabhakar wrote: > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > 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()`. I would add here that the fmt.format.code and fmt.format.field checks can be dropped as the subdev .set_fmt() handler ensures that those fields always hold valid values. > > Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > --- > .../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/drivers/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); > } > > -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 = { > - .which = V4L2_SUBDEV_FORMAT_ACTIVE, > - }; > - > - fmt.pad = 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 != cru->format.width || > - fmt.format.height != 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; > } > > - ret = rzg2l_cru_mc_validate_format(cru, sd, pad); > - if (ret) > - return ret; > - > pipe = media_entity_pipeline(&sd->entity) ? : &cru->vdev.pipe; > ret = video_device_pipeline_start(&cru->vdev, pipe); > if (ret) > @@ -986,6 +942,43 @@ static const struct v4l2_file_operations rzg2l_cru_fops = { > .read = vb2_fop_read, > }; > > +/* ----------------------------------------------------------------------------- > + * Media entity operations > + */ > + > +static int rzg2l_cru_video_link_validate(struct media_link *link) > +{ > + struct v4l2_subdev_format fmt = { > + .which = V4L2_SUBDEV_FORMAT_ACTIVE, > + }; > + const struct rzg2l_cru_ip_format *video_fmt; > + struct v4l2_subdev *subdev; > + struct rzg2l_cru_dev *cru; > + int ret; > + > + subdev = media_entity_to_v4l2_subdev(link->source->entity); > + fmt.pad = link->source->index; > + ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt); > + if (ret < 0) > + return ret == -ENOIOCTLCMD ? -EINVAL : ret; > + > + cru = container_of(media_entity_to_video_device(link->sink->entity), > + struct rzg2l_cru_dev, vdev); > + video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat); > + > + if (fmt.format.width != cru->format.width || > + fmt.format.height != cru->format.height || > + fmt.format.field != cru->format.field || > + video_fmt->code != fmt.format.code) > + return -EPIPE; > + > + return 0; > +} > + > +static const struct media_entity_operations rzg2l_cru_video_media_ops = { > + .link_validate = rzg2l_cru_video_link_validate, > +}; > + > static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru) > { > struct video_device *vdev = &cru->vdev; > @@ -997,6 +990,7 @@ static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru) > vdev->lock = &cru->lock; > vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; > vdev->device_caps |= V4L2_CAP_IO_MC; > + vdev->entity.ops = &rzg2l_cru_video_media_ops; > vdev->fops = &rzg2l_cru_fops; > vdev->ioctl_ops = &rzg2l_cru_ioctl_ops; >
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/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); } -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 = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - }; - - fmt.pad = 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 != cru->format.width || - fmt.format.height != 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; } - ret = rzg2l_cru_mc_validate_format(cru, sd, pad); - if (ret) - return ret; - pipe = media_entity_pipeline(&sd->entity) ? : &cru->vdev.pipe; ret = video_device_pipeline_start(&cru->vdev, pipe); if (ret) @@ -986,6 +942,43 @@ static const struct v4l2_file_operations rzg2l_cru_fops = { .read = vb2_fop_read, }; +/* ----------------------------------------------------------------------------- + * Media entity operations + */ + +static int rzg2l_cru_video_link_validate(struct media_link *link) +{ + struct v4l2_subdev_format fmt = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + }; + const struct rzg2l_cru_ip_format *video_fmt; + struct v4l2_subdev *subdev; + struct rzg2l_cru_dev *cru; + int ret; + + subdev = media_entity_to_v4l2_subdev(link->source->entity); + fmt.pad = link->source->index; + ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt); + if (ret < 0) + return ret == -ENOIOCTLCMD ? -EINVAL : ret; + + cru = container_of(media_entity_to_video_device(link->sink->entity), + struct rzg2l_cru_dev, vdev); + video_fmt = rzg2l_cru_ip_format_to_fmt(cru->format.pixelformat); + + if (fmt.format.width != cru->format.width || + fmt.format.height != cru->format.height || + fmt.format.field != cru->format.field || + video_fmt->code != fmt.format.code) + return -EPIPE; + + return 0; +} + +static const struct media_entity_operations rzg2l_cru_video_media_ops = { + .link_validate = rzg2l_cru_video_link_validate, +}; + static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru) { struct video_device *vdev = &cru->vdev; @@ -997,6 +990,7 @@ static void rzg2l_cru_v4l2_init(struct rzg2l_cru_dev *cru) vdev->lock = &cru->lock; vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; vdev->device_caps |= V4L2_CAP_IO_MC; + vdev->entity.ops = &rzg2l_cru_video_media_ops; vdev->fops = &rzg2l_cru_fops; vdev->ioctl_ops = &rzg2l_cru_ioctl_ops;