system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-07-22 03:01:14 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

media: v4l: subdev: Store the sub-device in the sub-device state

Browse source 
Store the sub-device in the sub-device state. This will be needed in e.g.
validating pad number when retrieving information for non-stream-aware
users. There are expected to be more needs for this in the future.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Sakari Ailus 2023-10-13 09:15:48 +02:00 committed by Mauro Carvalho Chehab
parent aeb18af188
commit 52c2575db8
2 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/media/v4l2-core/v4l2-subdev.c
View file

@ -1448,6 +1448,8 @@ __v4l2_subdev_state_alloc(struct v4l2_subdev *sd, const char *lock_name,
else
state->lock = &state->_lock;
state->sd = sd;
/* Drivers that support streams do not need the legacy pad config */
if (!(sd->flags & V4L2_SUBDEV_FL_STREAMS) && sd->entity.num_pads) {
state->pads = kvcalloc(sd->entity.num_pads,

2
include/media/v4l2-subdev.h
View file

@ -749,6 +749,7 @@ struct v4l2_subdev_krouting {
*
* @_lock: default for 'lock'
* @lock: mutex for the state. May be replaced by the user.
* @sd: the sub-device which the state is related to
* @pads: &struct v4l2_subdev_pad_config array
* @routing: routing table for the subdev
* @stream_configs: stream configurations (only for V4L2_SUBDEV_FL_STREAMS)
@ -761,6 +762,7 @@ struct v4l2_subdev_state {
/* lock for the struct v4l2_subdev_state fields */
struct mutex _lock;
struct mutex *lock;
struct v4l2_subdev *sd;
struct v4l2_subdev_pad_config *pads;
struct v4l2_subdev_krouting routing;
struct v4l2_subdev_stream_configs stream_configs;