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[media] v4l: exynos4-is: Use the new media graph walk interface

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The media graph walk requires initialisation and cleanup soon. Update the
users to perform the soon necessary API calls.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Kamil Debski <k.debski@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Sakari Ailus 2015-12-16 15:32:25 +02:00 committed by Mauro Carvalho Chehab
parent 28461451c0
commit fd7e5309a5
2 changed files with 21 additions and 11 deletions
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31
drivers/media/platform/exynos4-is/media-dev.c
View file

@ -1046,10 +1046,10 @@ static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable)
}
/* Locking: called with entity->graph_obj.mdev->graph_mutex mutex held. */
static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable,
struct media_entity_graph *graph)
{
struct media_entity *entity_err = entity;
struct media_entity_graph graph;
int ret;
/*
@ -1058,9 +1058,9 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
* through active links. This is needed as we cannot power on/off the
* subdevs in random order.
*/
media_entity_graph_walk_start(&graph, entity);
media_entity_graph_walk_start(graph, entity);
while ((entity = media_entity_graph_walk_next(&graph))) {
while ((entity = media_entity_graph_walk_next(graph))) {
if (!is_media_entity_v4l2_io(entity))
continue;
@ -1071,10 +1071,11 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
}
return 0;
err:
media_entity_graph_walk_start(&graph, entity_err);
while ((entity_err = media_entity_graph_walk_next(&graph))) {
err:
media_entity_graph_walk_start(graph, entity_err);
while ((entity_err = media_entity_graph_walk_next(graph))) {
if (!is_media_entity_v4l2_io(entity_err))
continue;
@ -1090,21 +1091,29 @@ static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable)
static int fimc_md_link_notify(struct media_link *link, unsigned int flags,
unsigned int notification)
{
struct media_entity_graph *graph =
&container_of(link->graph_obj.mdev, struct fimc_md,
media_dev)->link_setup_graph;
struct media_entity *sink = link->sink->entity;
int ret = 0;
/* Before link disconnection */
if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) {
ret = media_entity_graph_walk_init(graph,
link->graph_obj.mdev);
if (ret)
return ret;
if (!(flags & MEDIA_LNK_FL_ENABLED))
ret = __fimc_md_modify_pipelines(sink, false);
ret = __fimc_md_modify_pipelines(sink, false, graph);
#if 0
else
/* TODO: Link state change validation */
#endif
/* After link activation */
} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH &&
(link->flags & MEDIA_LNK_FL_ENABLED)) {
ret = __fimc_md_modify_pipelines(sink, true);
} else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) {
if (link->flags & MEDIA_LNK_FL_ENABLED)
ret = __fimc_md_modify_pipelines(sink, true, graph);
media_entity_graph_walk_cleanup(graph);
}
return ret ? -EPIPE : 0;

1
drivers/media/platform/exynos4-is/media-dev.h
View file

@ -154,6 +154,7 @@ struct fimc_md {
bool user_subdev_api;
spinlock_t slock;
struct list_head pipelines;
struct media_entity_graph link_setup_graph;
};
static inline