diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2022-05-09 23:32:33 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-07-08 18:02:46 +0100 |
| commit | 9d75fc9917708c1852650fab3ff743a97d5fec3c (patch) | |
| tree | d63194ca8281620d8bece4febe5f3abf8ad57ac9 /drivers/staging/media/imx/imx7-media-csi.c | |
| parent | 7d3bee233ce17ef55436e191890ae57774053379 (diff) | |
media: staging: media: imx: imx7-media-csi: Import imx_media_pipeline_set_stream()
To prepare for code refactoring, copy the
imx_media_pipeline_set_stream() helper used by this driver from
imx-media-utils.c. Rename the function to avoid name clashes, no
functional change intended.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/staging/media/imx/imx7-media-csi.c')
| -rw-r--r-- | drivers/staging/media/imx/imx7-media-csi.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index 96854f26cc40..51e6bb4bd8b6 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -1067,6 +1067,40 @@ static int imx7_csi_video_validate_fmt(struct imx7_csi *csi) return 0; } +/* + * Turn current pipeline streaming on/off starting from entity. + */ +static int imx7_csi_media_pipeline_set_stream(struct imx_media_dev *imxmd, + struct media_entity *entity, + bool on) +{ + struct v4l2_subdev *sd; + int ret = 0; + + if (!is_media_entity_v4l2_subdev(entity)) + return -EINVAL; + sd = media_entity_to_v4l2_subdev(entity); + + mutex_lock(&imxmd->md.graph_mutex); + + if (on) { + ret = __media_pipeline_start(entity, &imxmd->pipe); + if (ret) + goto out; + ret = v4l2_subdev_call(sd, video, s_stream, 1); + if (ret) + __media_pipeline_stop(entity); + } else { + v4l2_subdev_call(sd, video, s_stream, 0); + if (entity->pipe) + __media_pipeline_stop(entity); + } + +out: + mutex_unlock(&imxmd->md.graph_mutex); + return ret; +} + static int imx7_csi_video_start_streaming(struct vb2_queue *vq, unsigned int count) { @@ -1081,7 +1115,8 @@ static int imx7_csi_video_start_streaming(struct vb2_queue *vq, goto return_bufs; } - ret = imx_media_pipeline_set_stream(&csi->imxmd, &csi->sd.entity, true); + ret = imx7_csi_media_pipeline_set_stream(&csi->imxmd, &csi->sd.entity, + true); if (ret) { dev_err(csi->dev, "pipeline start failed with %d\n", ret); goto return_bufs; @@ -1107,7 +1142,8 @@ static void imx7_csi_video_stop_streaming(struct vb2_queue *vq) unsigned long flags; int ret; - ret = imx_media_pipeline_set_stream(&csi->imxmd, &csi->sd.entity, false); + ret = imx7_csi_media_pipeline_set_stream(&csi->imxmd, &csi->sd.entity, + false); if (ret) dev_warn(csi->dev, "pipeline stop failed with %d\n", ret); |