diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-async.c')
-rw-r--r-- | drivers/media/v4l2-core/v4l2-async.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 7925875d09b7..196573f4ec48 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -650,6 +650,82 @@ unlock: } EXPORT_SYMBOL_GPL(v4l2_async_notifier_add_subdev); +struct v4l2_async_subdev * +v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier, + struct fwnode_handle *fwnode, + unsigned int asd_struct_size) +{ + struct v4l2_async_subdev *asd; + int ret; + + asd = kzalloc(asd_struct_size, GFP_KERNEL); + if (!asd) + return ERR_PTR(-ENOMEM); + + asd->match_type = V4L2_ASYNC_MATCH_FWNODE; + asd->match.fwnode = fwnode; + + ret = v4l2_async_notifier_add_subdev(notifier, asd); + if (ret) { + kfree(asd); + return ERR_PTR(ret); + } + + return asd; +} +EXPORT_SYMBOL_GPL(v4l2_async_notifier_add_fwnode_subdev); + +struct v4l2_async_subdev * +v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier, + int adapter_id, unsigned short address, + unsigned int asd_struct_size) +{ + struct v4l2_async_subdev *asd; + int ret; + + asd = kzalloc(asd_struct_size, GFP_KERNEL); + if (!asd) + return ERR_PTR(-ENOMEM); + + asd->match_type = V4L2_ASYNC_MATCH_I2C; + asd->match.i2c.adapter_id = adapter_id; + asd->match.i2c.address = address; + + ret = v4l2_async_notifier_add_subdev(notifier, asd); + if (ret) { + kfree(asd); + return ERR_PTR(ret); + } + + return asd; +} +EXPORT_SYMBOL_GPL(v4l2_async_notifier_add_i2c_subdev); + +struct v4l2_async_subdev * +v4l2_async_notifier_add_devname_subdev(struct v4l2_async_notifier *notifier, + const char *device_name, + unsigned int asd_struct_size) +{ + struct v4l2_async_subdev *asd; + int ret; + + asd = kzalloc(asd_struct_size, GFP_KERNEL); + if (!asd) + return ERR_PTR(-ENOMEM); + + asd->match_type = V4L2_ASYNC_MATCH_DEVNAME; + asd->match.device_name = device_name; + + ret = v4l2_async_notifier_add_subdev(notifier, asd); + if (ret) { + kfree(asd); + return ERR_PTR(ret); + } + + return asd; +} +EXPORT_SYMBOL_GPL(v4l2_async_notifier_add_devname_subdev); + int v4l2_async_register_subdev(struct v4l2_subdev *sd) { struct v4l2_async_notifier *subdev_notifier; |