diff options
| -rw-r--r-- | drivers/media/media-entity.c | 18 | ||||
| -rw-r--r-- | drivers/media/platform/exynos4-is/media-dev.c | 18 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 41 | ||||
| -rw-r--r-- | include/media/media-device.h | 9 |
4 files changed, 47 insertions, 39 deletions
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c index 0438209d020a..df72f7d99d80 100644 --- a/drivers/media/media-entity.c +++ b/drivers/media/media-entity.c @@ -496,25 +496,17 @@ int __media_entity_setup_link(struct media_link *link, u32 flags) mdev = source->parent; - if ((flags & MEDIA_LNK_FL_ENABLED) && mdev->link_notify) { - ret = mdev->link_notify(link->source, link->sink, - MEDIA_LNK_FL_ENABLED); + if (mdev->link_notify) { + ret = mdev->link_notify(link, flags, + MEDIA_DEV_NOTIFY_PRE_LINK_CH); if (ret < 0) return ret; } ret = __media_entity_setup_link_notify(link, flags); - if (ret < 0) - goto err; - if (!(flags & MEDIA_LNK_FL_ENABLED) && mdev->link_notify) - mdev->link_notify(link->source, link->sink, 0); - - return 0; - -err: - if ((flags & MEDIA_LNK_FL_ENABLED) && mdev->link_notify) - mdev->link_notify(link->source, link->sink, 0); + if (mdev->link_notify) + mdev->link_notify(link, flags, MEDIA_DEV_NOTIFY_POST_LINK_CH); return ret; } diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index b5624931d16d..5298dd6680ae 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -1287,34 +1287,36 @@ int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) return __fimc_md_set_camclk(fmd, si, on); } -static int fimc_md_link_notify(struct media_pad *source, - struct media_pad *sink, u32 flags) +static int fimc_md_link_notify(struct media_link *link, u32 flags, + unsigned int notification) { + struct media_entity *sink = link->sink->entity; struct exynos_video_entity *ve; struct video_device *vdev; struct fimc_pipeline *pipeline; int i, ret = 0; - if (media_entity_type(sink->entity) != MEDIA_ENT_T_DEVNODE_V4L) + if (media_entity_type(sink) != MEDIA_ENT_T_DEVNODE_V4L || + notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) return 0; - vdev = media_entity_to_video_device(sink->entity); + vdev = media_entity_to_video_device(sink); ve = vdev_to_exynos_video_entity(vdev); pipeline = to_fimc_pipeline(ve->pipe); - if (!(flags & MEDIA_LNK_FL_ENABLED) && pipeline->subdevs[IDX_SENSOR]) { - if (sink->entity->use_count > 0) + if (!(link->flags & MEDIA_LNK_FL_ENABLED) && pipeline->subdevs[IDX_SENSOR]) { + if (sink->use_count > 0) ret = __fimc_pipeline_close(ve->pipe); for (i = 0; i < IDX_MAX; i++) pipeline->subdevs[i] = NULL; - } else if (sink->entity->use_count > 0) { + } else if (sink->use_count > 0) { /* * Link activation. Enable power of pipeline elements only if * the pipeline is already in use, i.e. its video node is open. * Recreate the controls destroyed during the link deactivation. */ - ret = __fimc_pipeline_open(ve->pipe, sink->entity, true); + ret = __fimc_pipeline_open(ve->pipe, sink, true); } return ret ? -EPIPE : ret; diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index ff5a20afa691..df3a0ec7fd2c 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -792,9 +792,9 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity, int use) /* * isp_pipeline_link_notify - Link management notification callback - * @source: Pad at the start of the link - * @sink: Pad at the end of the link + * @link: The link * @flags: New link flags that will be applied + * @notification: The link's state change notification type (MEDIA_DEV_NOTIFY_*) * * React to link management on powered pipelines by updating the use count of * all entities in the source and sink sides of the link. Entities are powered @@ -804,29 +804,38 @@ int omap3isp_pipeline_pm_use(struct media_entity *entity, int use) * off is assumed to never fail. This function will not fail for disconnection * events. */ -static int isp_pipeline_link_notify(struct media_pad *source, - struct media_pad *sink, u32 flags) +static int isp_pipeline_link_notify(struct media_link *link, u32 flags, + unsigned int notification) { - int source_use = isp_pipeline_pm_use_count(source->entity); - int sink_use = isp_pipeline_pm_use_count(sink->entity); + struct media_entity *source = link->source->entity; + struct media_entity *sink = link->sink->entity; + int source_use = isp_pipeline_pm_use_count(source); + int sink_use = isp_pipeline_pm_use_count(sink); int ret; - if (!(flags & MEDIA_LNK_FL_ENABLED)) { + if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && + !(link->flags & MEDIA_LNK_FL_ENABLED)) { /* Powering off entities is assumed to never fail. */ - isp_pipeline_pm_power(source->entity, -sink_use); - isp_pipeline_pm_power(sink->entity, -source_use); + isp_pipeline_pm_power(source, -sink_use); + isp_pipeline_pm_power(sink, -source_use); return 0; } - ret = isp_pipeline_pm_power(source->entity, sink_use); - if (ret < 0) - return ret; + if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && + (flags & MEDIA_LNK_FL_ENABLED)) { - ret = isp_pipeline_pm_power(sink->entity, source_use); - if (ret < 0) - isp_pipeline_pm_power(source->entity, -sink_use); + ret = isp_pipeline_pm_power(source, sink_use); + if (ret < 0) + return ret; - return ret; + ret = isp_pipeline_pm_power(sink, source_use); + if (ret < 0) + isp_pipeline_pm_power(source, -sink_use); + + return ret; + } + + return 0; } /* ----------------------------------------------------------------------------- diff --git a/include/media/media-device.h b/include/media/media-device.h index eaade9815bb6..12155a9596c4 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -45,6 +45,7 @@ struct device; * @entities: List of registered entities * @lock: Entities list lock * @graph_mutex: Entities graph operation lock + * @link_notify: Link state change notification callback * * This structure represents an abstract high-level media device. It allows easy * access to entities and provides basic media device-level support. The @@ -75,10 +76,14 @@ struct media_device { /* Serializes graph operations. */ struct mutex graph_mutex; - int (*link_notify)(struct media_pad *source, - struct media_pad *sink, u32 flags); + int (*link_notify)(struct media_link *link, u32 flags, + unsigned int notification); }; +/* Supported link_notify @notification values. */ +#define MEDIA_DEV_NOTIFY_PRE_LINK_CH 0 +#define MEDIA_DEV_NOTIFY_POST_LINK_CH 1 + /* media_devnode to media_device */ #define to_media_device(node) container_of(node, struct media_device, devnode) |