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media: entity: Add link_type_name() helper

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Now we have three types of media link, printing the right name during
debug output is slightly more complicated. Add a helper function to
make it easier.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Daniel Scally 2022-03-02 22:03:02 +00:00 committed by Mauro Carvalho Chehab
parent 4e4dab4bb6
commit 9d0c23bfe7
1 changed files with 15 additions and 3 deletions
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18
drivers/media/mc/mc-entity.c
View file

@ -44,6 +44,20 @@ static inline const char *intf_type(struct media_interface *intf)
}
};
static inline const char *link_type_name(struct media_link *link)
{
switch (link->flags & MEDIA_LNK_FL_LINK_TYPE) {
case MEDIA_LNK_FL_DATA_LINK:
return "data";
case MEDIA_LNK_FL_INTERFACE_LINK:
return "interface";
case MEDIA_LNK_FL_ANCILLARY_LINK:
return "ancillary";
default:
return "unknown";
}
}
__must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
int idx_max)
{
@ -89,9 +103,7 @@ static void dev_dbg_obj(const char *event_name, struct media_gobj *gobj)
dev_dbg(gobj->mdev->dev,
"%s id %u: %s link id %u ==> id %u\n",
event_name, media_id(gobj),
media_type(link->gobj0) == MEDIA_GRAPH_PAD ?
"data" : "interface",
event_name, media_id(gobj), link_type_name(link),
media_id(link->gobj0),
media_id(link->gobj1));
break;