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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2023-02-23 16:24:48 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-08-10 07:58:32 +0200 |
| commit | b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 (patch) | |
| tree | 390dad8cbc7b995091751e1011d3cd8d9839ed1c /include/media | |
| parent | 5651bab6890a0c5d126e2559b4aa353bed201e47 (diff) | |
| download | linux-b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3.tar.gz | |
media: v4l: async: Set v4l2_device and subdev in async notifier init
Set the v4l2_device already in async notifier init, so struct device
related to it will be available before the notifier is registered. This
requires separating notifier initialisation into two functions, one that
takes v4l2_device as its argument, v4l2_async_nf_init and
v4l2_async_subdev_nf_init, for sub-device notifiers. Registering the
notifier will use a single function, v4l2_async_nf_register.
This is done in order to make struct device available earlier, during
construction of the async connections, for sensible debug prints.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-async.h | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h index 41a9c4bada8a7..9bd326d311812 100644 --- a/include/media/v4l2-async.h +++ b/include/media/v4l2-async.h @@ -148,13 +148,30 @@ void v4l2_async_debug_init(struct dentry *debugfs_dir); * v4l2_async_nf_init - Initialize a notifier. * * @notifier: pointer to &struct v4l2_async_notifier + * @v4l2_dev: pointer to &struct v4l2_device + * + * This function initializes the notifier @asc_entry. It must be called + * before adding a subdevice to a notifier, using one of: + * v4l2_async_nf_add_fwnode_remote(), + * v4l2_async_nf_add_fwnode() or + * v4l2_async_nf_add_i2c(). + */ +void v4l2_async_nf_init(struct v4l2_async_notifier *notifier, + struct v4l2_device *v4l2_dev); + +/** + * v4l2_async_subdev_nf_init - Initialize a sub-device notifier. + * + * @notifier: pointer to &struct v4l2_async_notifier + * @sd: pointer to &struct v4l2_subdev * * This function initializes the notifier @asc_list. It must be called * before adding a subdevice to a notifier, using one of: * v4l2_async_nf_add_fwnode_remote(), v4l2_async_nf_add_fwnode() or * v4l2_async_nf_add_i2c(). */ -void v4l2_async_nf_init(struct v4l2_async_notifier *notifier); +void v4l2_async_subdev_nf_init(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *sd); struct v4l2_async_connection * __v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier, @@ -259,21 +276,9 @@ v4l2_async_connection_unique(struct v4l2_subdev *sd); /** * v4l2_async_nf_register - registers a subdevice asynchronous notifier * - * @v4l2_dev: pointer to &struct v4l2_device - * @notifier: pointer to &struct v4l2_async_notifier - */ -int v4l2_async_nf_register(struct v4l2_device *v4l2_dev, - struct v4l2_async_notifier *notifier); - -/** - * v4l2_async_subdev_nf_register - registers a subdevice asynchronous - * notifier for a sub-device - * - * @sd: pointer to &struct v4l2_subdev * @notifier: pointer to &struct v4l2_async_notifier */ -int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd, - struct v4l2_async_notifier *notifier); +int v4l2_async_nf_register(struct v4l2_async_notifier *notifier); /** * v4l2_async_nf_unregister - unregisters a subdevice |