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media: staging/intel-ipu3: set the main output as mandatory 

From firmware perspective, the main output for each pipe is mandatory
and must be enabled. This patch set the link between imgu subdev and
main output as IMMUTABLE by default.

Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Bingbu Cao 2019-12-30 04:09:04 +01:00 committed by Mauro Carvalho Chehab
parent 1451d5ae35
commit 92590966fe
2 changed files with 5 additions and 3 deletions
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3
drivers/staging/media/ipu3/TODO
View File

@ -5,9 +5,6 @@ staging directory.
as well as formats and the binary used to a request. Remove the
opportunistic buffer management. (Sakari)
- Using ENABLED and IMMUTABLE link flags for the links where those are
relevant. (Sakari)
- IPU3 driver documentation (Laurent)
Comments on configuring v4l2 subdevs for CIO2 and ImgU.

5
drivers/staging/media/ipu3/ipu3-v4l2.c
View File

@ -1260,6 +1260,11 @@ static int imgu_v4l2_node_setup(struct imgu_device *imgu, unsigned int pipe,
r = media_create_pad_link(&vdev->entity, 0, &sd->entity,
node_num, flags);
} else {
if (node->id == IMGU_NODE_OUT) {
flags |= MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE;
node->enabled = true;
}
r = media_create_pad_link(&sd->entity, node_num, &vdev->entity,
0, flags);
}