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* [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little
@ 2021-03-12 12:56 Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper Sakari Ailus
                   ` (3 more replies)
  0 siblings, 4 replies; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 12:56 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

Hi all,

This set improves code readability of the users of the V4L2 async and
fwnode frameworks by shortening the names of a few long functions. As a
result, no callers of these functions have to result in overly long lines
(> 80) nor wrapping at opening parenthesis.

This set is flaming hot. It'd be nice to get merged early in the cycle.

since v1:

- Include v4l2-async module split set. That now includes v4l2-async and
  v4l2-fwnode as separate modules. There turned out to be more drivers
  using just v4l2-async but not v4l2-fwnode.

Sakari Ailus (4):
  v4l: fwnode: Rename and make static V4L2 async notifier helper
  v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common
  v4l: async: Wrap long lines, remove '(' at the end of lines
  v4l: async, fwnode: Improve module organisation

 .../driver-api/media/v4l2-subdev.rst          |  16 +-
 drivers/media/i2c/Kconfig                     |   8 +
 drivers/media/i2c/ccs/ccs-core.c              |   2 +-
 drivers/media/i2c/et8ek8/et8ek8_driver.c      |   2 +-
 drivers/media/i2c/hi556.c                     |   2 +-
 drivers/media/i2c/imx214.c                    |   2 +-
 drivers/media/i2c/imx219.c                    |   2 +-
 drivers/media/i2c/imx258.c                    |   2 +-
 drivers/media/i2c/imx319.c                    |   2 +-
 drivers/media/i2c/imx334.c                    |   2 +-
 drivers/media/i2c/imx355.c                    |   2 +-
 drivers/media/i2c/max9286.c                   |  17 +-
 drivers/media/i2c/ov13858.c                   |   2 +-
 drivers/media/i2c/ov2740.c                    |   2 +-
 drivers/media/i2c/ov5640.c                    |   2 +-
 drivers/media/i2c/ov5648.c                    |   2 +-
 drivers/media/i2c/ov5670.c                    |   2 +-
 drivers/media/i2c/ov5675.c                    |   2 +-
 drivers/media/i2c/ov5695.c                    |   2 +-
 drivers/media/i2c/ov8856.c                    |   2 +-
 drivers/media/i2c/ov8865.c                    |   2 +-
 drivers/media/i2c/ov9734.c                    |   2 +-
 drivers/media/i2c/st-mipid02.c                |  22 +--
 drivers/media/pci/intel/ipu3/ipu3-cio2-main.c |  17 +-
 drivers/media/platform/am437x/am437x-vpfe.c   |  19 +-
 drivers/media/platform/atmel/atmel-isc-base.c |   4 +-
 drivers/media/platform/atmel/atmel-isi.c      |  17 +-
 .../media/platform/atmel/atmel-sama5d2-isc.c  |  15 +-
 drivers/media/platform/cadence/cdns-csi2rx.c  |  13 +-
 drivers/media/platform/davinci/vpif_capture.c |  21 +-
 drivers/media/platform/exynos4-is/media-dev.c |  20 +-
 .../media/platform/marvell-ccic/cafe-driver.c |   9 +-
 .../media/platform/marvell-ccic/mcam-core.c   |  10 +-
 .../media/platform/marvell-ccic/mmp-driver.c  |   6 +-
 drivers/media/platform/omap3isp/isp.c         |  21 +-
 drivers/media/platform/pxa_camera.c           |  26 ++-
 drivers/media/platform/qcom/camss/camss.c     |  18 +-
 drivers/media/platform/rcar-vin/rcar-core.c   |  33 ++--
 drivers/media/platform/rcar-vin/rcar-csi2.c   |  19 +-
 drivers/media/platform/rcar_drif.c            |  14 +-
 drivers/media/platform/renesas-ceu.c          |  29 ++-
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  17 +-
 drivers/media/platform/stm32/stm32-dcmi.c     |  18 +-
 .../platform/sunxi/sun4i-csi/sun4i_csi.c      |  12 +-
 .../platform/sunxi/sun6i-csi/sun6i_csi.c      |  19 +-
 drivers/media/platform/ti-vpe/cal.c           |  16 +-
 drivers/media/platform/video-mux.c            |  16 +-
 drivers/media/platform/xilinx/xilinx-vipp.c   |  17 +-
 drivers/media/v4l2-core/Kconfig               |   4 +
 drivers/media/v4l2-core/Makefile              |  11 +-
 drivers/media/v4l2-core/v4l2-async.c          | 181 ++++++++++--------
 drivers/media/v4l2-core/v4l2-dev.c            |   5 -
 drivers/media/v4l2-core/v4l2-fwnode.c         |  57 ++++--
 drivers/staging/media/imx/imx-media-csi.c     |  17 +-
 .../staging/media/imx/imx-media-dev-common.c  |   7 +-
 drivers/staging/media/imx/imx-media-dev.c     |   6 +-
 drivers/staging/media/imx/imx-media-of.c      |   6 +-
 drivers/staging/media/imx/imx6-mipi-csi2.c    |  17 +-
 drivers/staging/media/imx/imx7-media-csi.c    |  24 +--
 drivers/staging/media/imx/imx7-mipi-csis.c    |  17 +-
 drivers/staging/media/tegra-video/vi.c        |  17 +-
 include/media/v4l2-async.h                    | 111 ++++++-----
 include/media/v4l2-fwnode.h                   |  27 +--
 63 files changed, 525 insertions(+), 509 deletions(-)

-- 
2.29.2


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper
  2021-03-12 12:56 [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little Sakari Ailus
@ 2021-03-12 12:56 ` Sakari Ailus
  2021-03-23 16:18   ` Ezequiel Garcia
  2021-03-12 12:56 ` [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common Sakari Ailus
                   ` (2 subsequent siblings)
  3 siblings, 1 reply; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 12:56 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

Rename v4l2_async_notifier_parse_fwnode_sensor_common() as
v4l2_async_notifier_parse_fwnode_sensor() and make the function static, as
it's not used by a driver and maybe never will.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-fwnode.c | 27 ++++++++++++++++++++++-----
 include/media/v4l2-async.h            |  2 +-
 include/media/v4l2-fwnode.h           | 21 ---------------------
 3 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 2283ff3b8e1d..9c1b38919491 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -1259,8 +1259,27 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
 	return !fwnode || PTR_ERR(fwnode) == -ENOENT ? 0 : PTR_ERR(fwnode);
 }
 
-int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
-						   struct v4l2_async_notifier *notifier)
+/**
+ * v4l2_async_notifier_parse_fwnode_sensor - parse common references on
+ *					     sensors for async sub-devices
+ * @dev: the device node the properties of which are parsed for references
+ * @notifier: the async notifier where the async subdevs will be added
+ *
+ * Parse common sensor properties for remote devices related to the
+ * sensor and set up async sub-devices for them.
+ *
+ * Any notifier populated using this function must be released with a call to
+ * v4l2_async_notifier_release() after it has been unregistered and the async
+ * sub-devices are no longer in use, even in the case the function returned an
+ * error.
+ *
+ * Return: 0 on success
+ *	   -ENOMEM if memory allocation failed
+ *	   -EINVAL if property parsing failed
+ */
+static int
+v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
+					struct v4l2_async_notifier *notifier)
 {
 	static const char * const led_props[] = { "led" };
 	static const struct v4l2_fwnode_int_props props[] = {
@@ -1288,7 +1307,6 @@ int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(v4l2_async_notifier_parse_fwnode_sensor_common);
 
 int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
 {
@@ -1304,8 +1322,7 @@ int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
 
 	v4l2_async_notifier_init(notifier);
 
-	ret = v4l2_async_notifier_parse_fwnode_sensor_common(sd->dev,
-							     notifier);
+	ret = v4l2_async_notifier_parse_fwnode_sensor(sd->dev, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index d28cbe8142b8..aee28c0e31ac 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -295,7 +295,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
  *
  * This function is just like v4l2_async_register_subdev() with the exception
  * that calling it will also parse firmware interfaces for remote references
- * using v4l2_async_notifier_parse_fwnode_sensor_common() and registers the
+ * using v4l2_async_notifier_parse_fwnode_sensor() and registers the
  * async sub-devices. The sub-device is similarly unregistered by calling
  * v4l2_async_unregister_subdev().
  *
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index 80d21ad8d603..7ab033b819eb 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -510,27 +510,6 @@ v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
 					   size_t asd_struct_size,
 					   parse_endpoint_func parse_endpoint);
 
-/**
- * v4l2_async_notifier_parse_fwnode_sensor_common - parse common references on
- *					       sensors for async sub-devices
- * @dev: the device node the properties of which are parsed for references
- * @notifier: the async notifier where the async subdevs will be added
- *
- * Parse common sensor properties for remote devices related to the
- * sensor and set up async sub-devices for them.
- *
- * Any notifier populated using this function must be released with a call to
- * v4l2_async_notifier_release() after it has been unregistered and the async
- * sub-devices are no longer in use, even in the case the function returned an
- * error.
- *
- * Return: 0 on success
- *	   -ENOMEM if memory allocation failed
- *	   -EINVAL if property parsing failed
- */
-int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
-						   struct v4l2_async_notifier *notifier);
-
 /* Helper macros to access the connector links. */
 
 /** v4l2_connector_last_link - Helper macro to get the first
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 14+ messages in thread

* [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common
  2021-03-12 12:56 [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper Sakari Ailus
@ 2021-03-12 12:56 ` Sakari Ailus
  2021-03-23 16:56   ` Ezequiel Garcia
  2021-03-12 12:56 ` [PATCH v2 3/4] v4l: async: Wrap long lines, remove '(' at the end of lines Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation Sakari Ailus
  3 siblings, 1 reply; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 12:56 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

Rename v4l2_async_register_subdev_sensor_common as
v4l2_async_register_subdev_sensor. This is a part of the effort to make
the long names present in V4L2 fwnode and async frameworks shorter.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 Documentation/driver-api/media/v4l2-subdev.rst |  2 +-
 drivers/media/i2c/ccs/ccs-core.c               |  2 +-
 drivers/media/i2c/et8ek8/et8ek8_driver.c       |  2 +-
 drivers/media/i2c/hi556.c                      |  2 +-
 drivers/media/i2c/imx214.c                     |  2 +-
 drivers/media/i2c/imx219.c                     |  2 +-
 drivers/media/i2c/imx258.c                     |  2 +-
 drivers/media/i2c/imx319.c                     |  2 +-
 drivers/media/i2c/imx334.c                     |  2 +-
 drivers/media/i2c/imx355.c                     |  2 +-
 drivers/media/i2c/ov13858.c                    |  2 +-
 drivers/media/i2c/ov2740.c                     |  2 +-
 drivers/media/i2c/ov5640.c                     |  2 +-
 drivers/media/i2c/ov5648.c                     |  2 +-
 drivers/media/i2c/ov5670.c                     |  2 +-
 drivers/media/i2c/ov5675.c                     |  2 +-
 drivers/media/i2c/ov5695.c                     |  2 +-
 drivers/media/i2c/ov8856.c                     |  2 +-
 drivers/media/i2c/ov8865.c                     |  2 +-
 drivers/media/i2c/ov9734.c                     |  2 +-
 drivers/media/v4l2-core/v4l2-fwnode.c          |  4 ++--
 include/media/v4l2-async.h                     | 10 +++++-----
 22 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
index e1f05cd38897..7736da077fb8 100644
--- a/Documentation/driver-api/media/v4l2-subdev.rst
+++ b/Documentation/driver-api/media/v4l2-subdev.rst
@@ -208,7 +208,7 @@ the needs of the driver.
 :c:func:`v4l2_async_notifier_add_i2c_subdev` are for bridge and ISP drivers for
 registering their async sub-devices with the notifier.
 
-:c:func:`v4l2_async_register_subdev_sensor_common` is a helper function for
+:c:func:`v4l2_async_register_subdev_sensor` is a helper function for
 sensor drivers registering their own async sub-device, but it also registers a
 notifier and further registers async sub-devices for lens and flash devices
 found in firmware. The notifier for the sub-device is unregistered with the
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 4505594996bd..9dc3f45da3dc 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -3572,7 +3572,7 @@ static int ccs_probe(struct i2c_client *client)
 	pm_runtime_get_noresume(&client->dev);
 	pm_runtime_enable(&client->dev);
 
-	rval = v4l2_async_register_subdev_sensor_common(&sensor->src->sd);
+	rval = v4l2_async_register_subdev_sensor(&sensor->src->sd);
 	if (rval < 0)
 		goto out_disable_runtime_pm;
 
diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c
index 122af761c8e3..bb3eac5e005e 100644
--- a/drivers/media/i2c/et8ek8/et8ek8_driver.c
+++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c
@@ -1443,7 +1443,7 @@ static int et8ek8_probe(struct i2c_client *client)
 		goto err_mutex;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&sensor->subdev);
+	ret = v4l2_async_register_subdev_sensor(&sensor->subdev);
 	if (ret < 0)
 		goto err_entity;
 
diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c
index c74736845d7a..6f05c1138e3b 100644
--- a/drivers/media/i2c/hi556.c
+++ b/drivers/media/i2c/hi556.c
@@ -1145,7 +1145,7 @@ static int hi556_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&hi556->sd);
+	ret = v4l2_async_register_subdev_sensor(&hi556->sd);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
 			ret);
diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index cee1a4817af9..e8b281e432e8 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -1061,7 +1061,7 @@ static int imx214_probe(struct i2c_client *client)
 
 	imx214_entity_init_cfg(&imx214->sd, NULL);
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx214->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx214->sd);
 	if (ret < 0) {
 		dev_err(dev, "could not register v4l2 device\n");
 		goto free_entity;
diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 6e3382b85a90..909e1d418f33 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -1528,7 +1528,7 @@ static int imx219_probe(struct i2c_client *client)
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx219->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx219->sd);
 	if (ret < 0) {
 		dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
 		goto error_media_entity;
diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index 61d74b794582..61b2d87a9761 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -1289,7 +1289,7 @@ static int imx258_probe(struct i2c_client *client)
 	if (ret)
 		goto error_handler_free;
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx258->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx258->sd);
 	if (ret < 0)
 		goto error_media_entity;
 
diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
index 8473c0bbb35d..38540323a156 100644
--- a/drivers/media/i2c/imx319.c
+++ b/drivers/media/i2c/imx319.c
@@ -2486,7 +2486,7 @@ static int imx319_probe(struct i2c_client *client)
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx319->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx319->sd);
 	if (ret < 0)
 		goto error_media_entity;
 
diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c
index ad530f0d338a..047aa7658d21 100644
--- a/drivers/media/i2c/imx334.c
+++ b/drivers/media/i2c/imx334.c
@@ -1057,7 +1057,7 @@ static int imx334_probe(struct i2c_client *client)
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx334->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx334->sd);
 	if (ret < 0) {
 		dev_err(imx334->dev,
 			"failed to register async subdev: %d", ret);
diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
index 700f7467fb31..ccedcd4c520a 100644
--- a/drivers/media/i2c/imx355.c
+++ b/drivers/media/i2c/imx355.c
@@ -1786,7 +1786,7 @@ static int imx355_probe(struct i2c_client *client)
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&imx355->sd);
+	ret = v4l2_async_register_subdev_sensor(&imx355->sd);
 	if (ret < 0)
 		goto error_media_entity;
 
diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c
index 2f3be7a80cef..4a2885ff0cbe 100644
--- a/drivers/media/i2c/ov13858.c
+++ b/drivers/media/i2c/ov13858.c
@@ -1738,7 +1738,7 @@ static int ov13858_probe(struct i2c_client *client,
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&ov13858->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov13858->sd);
 	if (ret < 0)
 		goto error_media_entity;
 
diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
index b41a90c2aed5..0f3f17f3c426 100644
--- a/drivers/media/i2c/ov2740.c
+++ b/drivers/media/i2c/ov2740.c
@@ -1154,7 +1154,7 @@ static int ov2740_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&ov2740->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov2740->sd);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
 			ret);
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 14f3afa7721a..5b9cc71df473 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -3162,7 +3162,7 @@ static int ov5640_probe(struct i2c_client *client)
 	if (ret)
 		goto entity_cleanup;
 
-	ret = v4l2_async_register_subdev_sensor_common(&sensor->sd);
+	ret = v4l2_async_register_subdev_sensor(&sensor->sd);
 	if (ret)
 		goto free_ctrls;
 
diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
index dfe38ab8224d..3ecb4a3e8773 100644
--- a/drivers/media/i2c/ov5648.c
+++ b/drivers/media/i2c/ov5648.c
@@ -2559,7 +2559,7 @@ static int ov5648_probe(struct i2c_client *client)
 
 	/* V4L2 subdev register */
 
-	ret = v4l2_async_register_subdev_sensor_common(subdev);
+	ret = v4l2_async_register_subdev_sensor(subdev);
 	if (ret)
 		goto error_pm;
 
diff --git a/drivers/media/i2c/ov5670.c b/drivers/media/i2c/ov5670.c
index 866c8c2e8f59..dee7df8dd100 100644
--- a/drivers/media/i2c/ov5670.c
+++ b/drivers/media/i2c/ov5670.c
@@ -2503,7 +2503,7 @@ static int ov5670_probe(struct i2c_client *client)
 	}
 
 	/* Async register for subdev */
-	ret = v4l2_async_register_subdev_sensor_common(&ov5670->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov5670->sd);
 	if (ret < 0) {
 		err_msg = "v4l2_async_register_subdev() error";
 		goto error_entity_cleanup;
diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c
index ae00d717e599..dea32859459a 100644
--- a/drivers/media/i2c/ov5675.c
+++ b/drivers/media/i2c/ov5675.c
@@ -1193,7 +1193,7 @@ static int ov5675_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&ov5675->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov5675->sd);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
 			ret);
diff --git a/drivers/media/i2c/ov5695.c b/drivers/media/i2c/ov5695.c
index bbccb6f9582f..09bee57a241d 100644
--- a/drivers/media/i2c/ov5695.c
+++ b/drivers/media/i2c/ov5695.c
@@ -1336,7 +1336,7 @@ static int ov5695_probe(struct i2c_client *client,
 		goto err_power_off;
 #endif
 
-	ret = v4l2_async_register_subdev_sensor_common(sd);
+	ret = v4l2_async_register_subdev_sensor(sd);
 	if (ret) {
 		dev_err(dev, "v4l2 async register subdev failed\n");
 		goto err_clean_entity;
diff --git a/drivers/media/i2c/ov8856.c b/drivers/media/i2c/ov8856.c
index b337f729d5e3..e3af3ea277af 100644
--- a/drivers/media/i2c/ov8856.c
+++ b/drivers/media/i2c/ov8856.c
@@ -1795,7 +1795,7 @@ static int ov8856_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&ov8856->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov8856->sd);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
 			ret);
diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c
index 2db052ff9d21..9ecf180635ee 100644
--- a/drivers/media/i2c/ov8865.c
+++ b/drivers/media/i2c/ov8865.c
@@ -2904,7 +2904,7 @@ static int ov8865_probe(struct i2c_client *client)
 
 	/* V4L2 subdev register */
 
-	ret = v4l2_async_register_subdev_sensor_common(subdev);
+	ret = v4l2_async_register_subdev_sensor(subdev);
 	if (ret)
 		goto error_pm;
 
diff --git a/drivers/media/i2c/ov9734.c b/drivers/media/i2c/ov9734.c
index e212465489e8..b7309a551cae 100644
--- a/drivers/media/i2c/ov9734.c
+++ b/drivers/media/i2c/ov9734.c
@@ -964,7 +964,7 @@ static int ov9734_probe(struct i2c_client *client)
 		goto probe_error_v4l2_ctrl_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor_common(&ov9734->sd);
+	ret = v4l2_async_register_subdev_sensor(&ov9734->sd);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
 			ret);
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 9c1b38919491..843259c304bb 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -1308,7 +1308,7 @@ v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
 	return 0;
 }
 
-int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
+int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
 {
 	struct v4l2_async_notifier *notifier;
 	int ret;
@@ -1347,7 +1347,7 @@ int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(v4l2_async_register_subdev_sensor_common);
+EXPORT_SYMBOL_GPL(v4l2_async_register_subdev_sensor);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>");
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index aee28c0e31ac..fa4901162663 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -286,10 +286,10 @@ void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier);
 int v4l2_async_register_subdev(struct v4l2_subdev *sd);
 
 /**
- * v4l2_async_register_subdev_sensor_common - registers a sensor sub-device to
- *					      the asynchronous sub-device
- *					      framework and parse set up common
- *					      sensor related devices
+ * v4l2_async_register_subdev_sensor - registers a sensor sub-device to the
+ *				       asynchronous sub-device framework and
+ *				       parse set up common sensor related
+ *				       devices
  *
  * @sd: pointer to struct &v4l2_subdev
  *
@@ -305,7 +305,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
  * to register it.
  */
 int __must_check
-v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd);
+v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd);
 
 /**
  * v4l2_async_unregister_subdev - unregisters a sub-device to the asynchronous
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 14+ messages in thread

* [PATCH v2 3/4] v4l: async: Wrap long lines, remove '(' at the end of lines
  2021-03-12 12:56 [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common Sakari Ailus
@ 2021-03-12 12:56 ` Sakari Ailus
  2021-03-22 11:19   ` [PATCH v2.1 1/1] " Sakari Ailus
  2021-03-12 12:56 ` [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation Sakari Ailus
  3 siblings, 1 reply; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 12:56 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

Rename V4L2 async notifier functions, replacing "notifier" with "nf" and
removing "_subdev" at the end of the function names adding subdevs as you
can only add subdevs to a notifier.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 .../driver-api/media/v4l2-subdev.rst          |  14 +-
 drivers/media/i2c/max9286.c                   |  17 +-
 drivers/media/i2c/st-mipid02.c                |  22 ++-
 drivers/media/pci/intel/ipu3/ipu3-cio2-main.c |  17 +-
 drivers/media/platform/am437x/am437x-vpfe.c   |  19 ++-
 drivers/media/platform/atmel/atmel-isc-base.c |   4 +-
 drivers/media/platform/atmel/atmel-isi.c      |  17 +-
 .../media/platform/atmel/atmel-sama5d2-isc.c  |  15 +-
 drivers/media/platform/cadence/cdns-csi2rx.c  |  13 +-
 drivers/media/platform/davinci/vpif_capture.c |  21 +--
 drivers/media/platform/exynos4-is/media-dev.c |  20 +--
 .../media/platform/marvell-ccic/cafe-driver.c |   9 +-
 .../media/platform/marvell-ccic/mcam-core.c   |  10 +-
 .../media/platform/marvell-ccic/mmp-driver.c  |   6 +-
 drivers/media/platform/omap3isp/isp.c         |  21 ++-
 drivers/media/platform/pxa_camera.c           |  26 ++-
 drivers/media/platform/qcom/camss/camss.c     |  18 +-
 drivers/media/platform/rcar-vin/rcar-core.c   |  33 ++--
 drivers/media/platform/rcar-vin/rcar-csi2.c   |  19 +--
 drivers/media/platform/rcar_drif.c            |  14 +-
 drivers/media/platform/renesas-ceu.c          |  29 ++--
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  17 +-
 drivers/media/platform/stm32/stm32-dcmi.c     |  18 +-
 .../platform/sunxi/sun4i-csi/sun4i_csi.c      |  12 +-
 .../platform/sunxi/sun6i-csi/sun6i_csi.c      |  19 ++-
 drivers/media/platform/ti-vpe/cal.c           |  16 +-
 drivers/media/platform/video-mux.c            |  16 +-
 drivers/media/platform/xilinx/xilinx-vipp.c   |  17 +-
 drivers/media/v4l2-core/v4l2-async.c          | 158 +++++++++---------
 drivers/media/v4l2-core/v4l2-fwnode.c         |  34 ++--
 drivers/staging/media/imx/imx-media-csi.c     |  17 +-
 .../staging/media/imx/imx-media-dev-common.c  |   7 +-
 drivers/staging/media/imx/imx-media-dev.c     |   6 +-
 drivers/staging/media/imx/imx-media-of.c      |   6 +-
 drivers/staging/media/imx/imx6-mipi-csi2.c    |  17 +-
 drivers/staging/media/imx/imx7-media-csi.c    |  24 +--
 drivers/staging/media/imx/imx7-mipi-csis.c    |  17 +-
 drivers/staging/media/tegra-video/vi.c        |  17 +-
 include/media/v4l2-async.h                    | 101 ++++++-----
 include/media/v4l2-fwnode.h                   |   6 +-
 40 files changed, 438 insertions(+), 451 deletions(-)

diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
index 7736da077fb8..08ea2673b19e 100644
--- a/Documentation/driver-api/media/v4l2-subdev.rst
+++ b/Documentation/driver-api/media/v4l2-subdev.rst
@@ -191,21 +191,21 @@ registered this way are stored in a global list of subdevices, ready to be
 picked up by bridge drivers.
 
 Bridge drivers in turn have to register a notifier object. This is
-performed using the :c:func:`v4l2_async_notifier_register` call. To
+performed using the :c:func:`v4l2_async_nf_register` call. To
 unregister the notifier the driver has to call
-:c:func:`v4l2_async_notifier_unregister`. The former of the two functions
+:c:func:`v4l2_async_nf_unregister`. The former of the two functions
 takes two arguments: a pointer to struct :c:type:`v4l2_device` and a
 pointer to struct :c:type:`v4l2_async_notifier`.
 
 Before registering the notifier, bridge drivers must do two things: first, the
-notifier must be initialized using the :c:func:`v4l2_async_notifier_init`.
+notifier must be initialized using the :c:func:`v4l2_async_nf_init`.
 Second, bridge drivers can then begin to form a list of subdevice descriptors
 that the bridge device needs for its operation. Several functions are available
 to add subdevice descriptors to a notifier, depending on the type of device and
 the needs of the driver.
 
-:c:func:`v4l2_async_notifier_add_fwnode_remote_subdev` and
-:c:func:`v4l2_async_notifier_add_i2c_subdev` are for bridge and ISP drivers for
+:c:func:`v4l2_async_nf_add_fwnode_remote` and
+:c:func:`v4l2_async_nf_add_i2c` are for bridge and ISP drivers for
 registering their async sub-devices with the notifier.
 
 :c:func:`v4l2_async_register_subdev_sensor` is a helper function for
@@ -230,8 +230,8 @@ These functions allocate an async sub-device descriptor which is of type struct
 
 	...
 
-	my_asd = v4l2_async_notifier_add_fwnode_remote_subdev(&notifier, ep,
-							      struct my_async_subdev);
+	my_asd = v4l2_async_nf_add_fwnode_remote(&notifier, ep,
+						 struct my_async_subdev);
 	fwnode_handle_put(ep);
 
 	if (IS_ERR(asd))
diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index 6fd4d59fcc72..2aea0bd681f8 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -603,19 +603,18 @@ static int max9286_v4l2_notifier_register(struct max9286_priv *priv)
 	if (!priv->nsources)
 		return 0;
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 
 	for_each_source(priv, source) {
 		unsigned int i = to_index(priv, source);
 		struct max9286_asd *mas;
 
-		mas = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier,
-							    source->fwnode,
-							    struct max9286_asd);
+		mas = v4l2_async_nf_add_fwnode(&priv->notifier, source->fwnode,
+					       struct max9286_asd);
 		if (IS_ERR(mas)) {
 			dev_err(dev, "Failed to add subdev for source %u: %ld",
 				i, PTR_ERR(mas));
-			v4l2_async_notifier_cleanup(&priv->notifier);
+			v4l2_async_nf_cleanup(&priv->notifier);
 			return PTR_ERR(mas);
 		}
 
@@ -624,10 +623,10 @@ static int max9286_v4l2_notifier_register(struct max9286_priv *priv)
 
 	priv->notifier.ops = &max9286_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&priv->sd, &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->sd, &priv->notifier);
 	if (ret) {
 		dev_err(dev, "Failed to register subdev_notifier");
-		v4l2_async_notifier_cleanup(&priv->notifier);
+		v4l2_async_nf_cleanup(&priv->notifier);
 		return ret;
 	}
 
@@ -639,8 +638,8 @@ static void max9286_v4l2_notifier_unregister(struct max9286_priv *priv)
 	if (!priv->nsources)
 		return;
 
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 }
 
 static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
index 7f07ef56fbbd..78f47fa6d616 100644
--- a/drivers/media/i2c/st-mipid02.c
+++ b/drivers/media/i2c/st-mipid02.c
@@ -875,11 +875,10 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge)
 	bridge->rx = ep;
 
 	/* register async notifier so we get noticed when sensor is connected */
-	v4l2_async_notifier_init(&bridge->notifier);
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-					&bridge->notifier,
-					of_fwnode_handle(ep_node),
-					struct v4l2_async_subdev);
+	v4l2_async_nf_init(&bridge->notifier);
+	asd = v4l2_async_nf_add_fwnode_remote(&bridge->notifier,
+					      of_fwnode_handle(ep_node),
+					      struct v4l2_async_subdev);
 	of_node_put(ep_node);
 
 	if (IS_ERR(asd)) {
@@ -889,10 +888,9 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge)
 	}
 	bridge->notifier.ops = &mipid02_notifier_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&bridge->sd,
-						  &bridge->notifier);
+	ret = v4l2_async_subdev_nf_register(&bridge->sd, &bridge->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&bridge->notifier);
+		v4l2_async_nf_cleanup(&bridge->notifier);
 
 	return ret;
 
@@ -1030,8 +1028,8 @@ static int mipid02_probe(struct i2c_client *client)
 	return 0;
 
 unregister_notifier:
-	v4l2_async_notifier_unregister(&bridge->notifier);
-	v4l2_async_notifier_cleanup(&bridge->notifier);
+	v4l2_async_nf_unregister(&bridge->notifier);
+	v4l2_async_nf_cleanup(&bridge->notifier);
 power_off:
 	mipid02_set_power_off(bridge);
 entity_cleanup:
@@ -1047,8 +1045,8 @@ static int mipid02_remove(struct i2c_client *client)
 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 	struct mipid02_dev *bridge = to_mipid02_dev(sd);
 
-	v4l2_async_notifier_unregister(&bridge->notifier);
-	v4l2_async_notifier_cleanup(&bridge->notifier);
+	v4l2_async_nf_unregister(&bridge->notifier);
+	v4l2_async_nf_cleanup(&bridge->notifier);
 	v4l2_async_unregister_subdev(&bridge->sd);
 	mipid02_set_power_off(bridge);
 	media_entity_cleanup(&bridge->sd.entity);
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
index fecef85bd62e..dc33c01a2c2d 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
@@ -1478,8 +1478,9 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
 		if (ret)
 			goto err_parse;
 
-		s_asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&cio2->notifier, ep, struct sensor_async_subdev);
+		s_asd = v4l2_async_nf_add_fwnode_remote(&cio2->notifier, ep,
+							struct
+							sensor_async_subdev);
 		if (IS_ERR(s_asd)) {
 			ret = PTR_ERR(s_asd);
 			goto err_parse;
@@ -1502,7 +1503,7 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
 	 * suspend.
 	 */
 	cio2->notifier.ops = &cio2_async_ops;
-	ret = v4l2_async_notifier_register(&cio2->v4l2_dev, &cio2->notifier);
+	ret = v4l2_async_nf_register(&cio2->v4l2_dev, &cio2->notifier);
 	if (ret)
 		dev_err(&cio2->pci_dev->dev,
 			"failed to register async notifier : %d\n", ret);
@@ -1804,7 +1805,7 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
 	if (r)
 		goto fail_v4l2_device_unregister;
 
-	v4l2_async_notifier_init(&cio2->notifier);
+	v4l2_async_nf_init(&cio2->notifier);
 
 	/* Register notifier for subdevices we care */
 	r = cio2_parse_firmware(cio2);
@@ -1824,8 +1825,8 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
 	return 0;
 
 fail_clean_notifier:
-	v4l2_async_notifier_unregister(&cio2->notifier);
-	v4l2_async_notifier_cleanup(&cio2->notifier);
+	v4l2_async_nf_unregister(&cio2->notifier);
+	v4l2_async_nf_cleanup(&cio2->notifier);
 	cio2_queues_exit(cio2);
 fail_v4l2_device_unregister:
 	v4l2_device_unregister(&cio2->v4l2_dev);
@@ -1844,8 +1845,8 @@ static void cio2_pci_remove(struct pci_dev *pci_dev)
 	struct cio2_device *cio2 = pci_get_drvdata(pci_dev);
 
 	media_device_unregister(&cio2->media_dev);
-	v4l2_async_notifier_unregister(&cio2->notifier);
-	v4l2_async_notifier_cleanup(&cio2->notifier);
+	v4l2_async_nf_unregister(&cio2->notifier);
+	v4l2_async_nf_cleanup(&cio2->notifier);
 	cio2_queues_exit(cio2);
 	cio2_fbpt_exit_dummy(cio2);
 	v4l2_device_unregister(&cio2->v4l2_dev);
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 6cdc77dda0e4..92603488765e 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -2295,7 +2295,7 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 
 	dev_dbg(dev, "vpfe_get_pdata\n");
 
-	v4l2_async_notifier_init(&vpfe->notifier);
+	v4l2_async_nf_init(&vpfe->notifier);
 
 	if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
 		return dev->platform_data;
@@ -2363,9 +2363,10 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 			goto cleanup;
 		}
 
-		pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
-			&vpfe->notifier, of_fwnode_handle(rem),
-			struct v4l2_async_subdev);
+		pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpfe->notifier,
+							 of_fwnode_handle(rem),
+							 struct
+							 v4l2_async_subdev);
 		of_node_put(rem);
 		if (IS_ERR(pdata->asd[i]))
 			goto cleanup;
@@ -2375,7 +2376,7 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 	return pdata;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	of_node_put(endpoint);
 	return NULL;
 }
@@ -2459,7 +2460,7 @@ static int vpfe_probe(struct platform_device *pdev)
 	}
 
 	vpfe->notifier.ops = &vpfe_async_ops;
-	ret = v4l2_async_notifier_register(&vpfe->v4l2_dev, &vpfe->notifier);
+	ret = v4l2_async_nf_register(&vpfe->v4l2_dev, &vpfe->notifier);
 	if (ret) {
 		vpfe_err(vpfe, "Error registering async notifier\n");
 		ret = -EINVAL;
@@ -2471,7 +2472,7 @@ static int vpfe_probe(struct platform_device *pdev)
 probe_out_v4l2_unregister:
 	v4l2_device_unregister(&vpfe->v4l2_dev);
 probe_out_cleanup:
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	return ret;
 }
 
@@ -2484,8 +2485,8 @@ static int vpfe_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
-	v4l2_async_notifier_unregister(&vpfe->notifier);
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_unregister(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	v4l2_device_unregister(&vpfe->v4l2_dev);
 	video_unregister_device(&vpfe->video_dev);
 
diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index fe3ec8d0eaee..1e183b9b2acf 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -2324,8 +2324,8 @@ void isc_subdev_cleanup(struct isc_device *isc)
 	struct isc_subdev_entity *subdev_entity;
 
 	list_for_each_entry(subdev_entity, &isc->subdev_entities, list) {
-		v4l2_async_notifier_unregister(&subdev_entity->notifier);
-		v4l2_async_notifier_cleanup(&subdev_entity->notifier);
+		v4l2_async_nf_unregister(&subdev_entity->notifier);
+		v4l2_async_nf_cleanup(&subdev_entity->notifier);
 	}
 
 	INIT_LIST_HEAD(&isc->subdev_entities);
diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c
index 0514be6153df..d5e859634545 100644
--- a/drivers/media/platform/atmel/atmel-isi.c
+++ b/drivers/media/platform/atmel/atmel-isi.c
@@ -1145,12 +1145,11 @@ static int isi_graph_init(struct atmel_isi *isi)
 	if (!ep)
 		return -EINVAL;
 
-	v4l2_async_notifier_init(&isi->notifier);
+	v4l2_async_nf_init(&isi->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-						&isi->notifier,
-						of_fwnode_handle(ep),
-						struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&isi->notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 	of_node_put(ep);
 
 	if (IS_ERR(asd))
@@ -1158,10 +1157,10 @@ static int isi_graph_init(struct atmel_isi *isi)
 
 	isi->notifier.ops = &isi_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&isi->v4l2_dev, &isi->notifier);
+	ret = v4l2_async_nf_register(&isi->v4l2_dev, &isi->notifier);
 	if (ret < 0) {
 		dev_err(isi->dev, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&isi->notifier);
+		v4l2_async_nf_cleanup(&isi->notifier);
 		return ret;
 	}
 
@@ -1313,8 +1312,8 @@ static int atmel_isi_remove(struct platform_device *pdev)
 			isi->p_fb_descriptors,
 			isi->fb_descriptors_phys);
 	pm_runtime_disable(&pdev->dev);
-	v4l2_async_notifier_unregister(&isi->notifier);
-	v4l2_async_notifier_cleanup(&isi->notifier);
+	v4l2_async_nf_unregister(&isi->notifier);
+	v4l2_async_nf_cleanup(&isi->notifier);
 	v4l2_device_unregister(&isi->v4l2_dev);
 
 	return 0;
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index 0b78fecfd2a8..f0b9af225b3f 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -208,13 +208,14 @@ static int atmel_isc_probe(struct platform_device *pdev)
 
 	list_for_each_entry(subdev_entity, &isc->subdev_entities, list) {
 		struct v4l2_async_subdev *asd;
+		struct fwnode_handle *fwnode =
+			of_fwnode_handle(subdev_entity->epn);
 
-		v4l2_async_notifier_init(&subdev_entity->notifier);
+		v4l2_async_nf_init(&subdev_entity->notifier);
 
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-					&subdev_entity->notifier,
-					of_fwnode_handle(subdev_entity->epn),
-					struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&subdev_entity->notifier,
+						      fwnode,
+						      struct v4l2_async_subdev);
 
 		of_node_put(subdev_entity->epn);
 		subdev_entity->epn = NULL;
@@ -226,8 +227,8 @@ static int atmel_isc_probe(struct platform_device *pdev)
 
 		subdev_entity->notifier.ops = &isc_async_ops;
 
-		ret = v4l2_async_notifier_register(&isc->v4l2_dev,
-						   &subdev_entity->notifier);
+		ret = v4l2_async_nf_register(&isc->v4l2_dev,
+					     &subdev_entity->notifier);
 		if (ret) {
 			dev_err(dev, "fail to register async notifier\n");
 			goto cleanup_subdev;
diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index c68a3eac62cd..b937c4e95205 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -395,21 +395,20 @@ static int csi2rx_parse_dt(struct csi2rx_priv *csi2rx)
 		return -EINVAL;
 	}
 
-	v4l2_async_notifier_init(&csi2rx->notifier);
+	v4l2_async_nf_init(&csi2rx->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&csi2rx->notifier,
-							   fwh,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi2rx->notifier, fwh,
+					      struct v4l2_async_subdev);
 	of_node_put(ep);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
 
 	csi2rx->notifier.ops = &csi2rx_notifier_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi2rx->subdev,
+	ret = v4l2_async_subdev_nf_register(&csi2rx->subdev,
 						  &csi2rx->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&csi2rx->notifier);
+		v4l2_async_nf_cleanup(&csi2rx->notifier);
 
 	return ret;
 }
@@ -465,7 +464,7 @@ static int csi2rx_probe(struct platform_device *pdev)
 	return 0;
 
 err_cleanup:
-	v4l2_async_notifier_cleanup(&csi2rx->notifier);
+	v4l2_async_nf_cleanup(&csi2rx->notifier);
 err_free_priv:
 	kfree(csi2rx);
 	return ret;
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 8d2e165bf7de..3cb4cfd168c0 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1506,7 +1506,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 	struct vpif_capture_chan_config *chan;
 	unsigned int i;
 
-	v4l2_async_notifier_init(&vpif_obj.notifier);
+	v4l2_async_nf_init(&vpif_obj.notifier);
 
 	/*
 	 * DT boot: OF node from parent device contains
@@ -1582,9 +1582,10 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 		dev_dbg(&pdev->dev, "Remote device %pOF found\n", rem);
 		sdinfo->name = rem->full_name;
 
-		pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
-			&vpif_obj.notifier, of_fwnode_handle(rem),
-			struct v4l2_async_subdev);
+		pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpif_obj.notifier,
+							 of_fwnode_handle(rem),
+							 struct
+							 v4l2_async_subdev);
 		if (IS_ERR(pdata->asd[i]))
 			goto err_cleanup;
 
@@ -1602,7 +1603,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 err_cleanup:
 	of_node_put(rem);
 	of_node_put(endpoint);
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 
 	return NULL;
 }
@@ -1692,8 +1693,8 @@ static __init int vpif_probe(struct platform_device *pdev)
 			goto probe_subdev_out;
 	} else {
 		vpif_obj.notifier.ops = &vpif_async_ops;
-		err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev,
-						   &vpif_obj.notifier);
+		err = v4l2_async_nf_register(&vpif_obj.v4l2_dev,
+					     &vpif_obj.notifier);
 		if (err) {
 			vpif_err("Error registering async notifier\n");
 			err = -EINVAL;
@@ -1711,7 +1712,7 @@ static __init int vpif_probe(struct platform_device *pdev)
 vpif_free:
 	free_vpif_objs();
 cleanup:
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 
 	return err;
 }
@@ -1727,8 +1728,8 @@ static int vpif_remove(struct platform_device *device)
 	struct channel_obj *ch;
 	int i;
 
-	v4l2_async_notifier_unregister(&vpif_obj.notifier);
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_unregister(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 	v4l2_device_unregister(&vpif_obj.v4l2_dev);
 
 	kfree(vpif_obj.sd);
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 1e5a28f32195..bdb6d6b5d2c6 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -464,9 +464,9 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd,
 		return -EINVAL;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&fmd->subdev_notifier, of_fwnode_handle(ep),
-		struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&fmd->subdev_notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 
 	of_node_put(ep);
 
@@ -557,7 +557,7 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
 
 cleanup:
 	of_node_put(ports);
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 	pm_runtime_put(fmd->pmf);
 	return ret;
 }
@@ -1484,7 +1484,7 @@ static int fimc_md_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, fmd);
 
-	v4l2_async_notifier_init(&fmd->subdev_notifier);
+	v4l2_async_nf_init(&fmd->subdev_notifier);
 
 	ret = fimc_md_register_platform_entities(fmd, dev->of_node);
 	if (ret)
@@ -1512,8 +1512,8 @@ static int fimc_md_probe(struct platform_device *pdev)
 		fmd->subdev_notifier.ops = &subdev_notifier_ops;
 		fmd->num_sensors = 0;
 
-		ret = v4l2_async_notifier_register(&fmd->v4l2_dev,
-						&fmd->subdev_notifier);
+		ret = v4l2_async_nf_register(&fmd->v4l2_dev,
+					     &fmd->subdev_notifier);
 		if (ret)
 			goto err_clk_p;
 	}
@@ -1525,7 +1525,7 @@ static int fimc_md_probe(struct platform_device *pdev)
 err_attr:
 	device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
 err_cleanup:
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 err_m_ent:
 	fimc_md_unregister_entities(fmd);
 err_clk:
@@ -1545,8 +1545,8 @@ static int fimc_md_remove(struct platform_device *pdev)
 		return 0;
 
 	fimc_md_unregister_clk_provider(fmd);
-	v4l2_async_notifier_unregister(&fmd->subdev_notifier);
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_unregister(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 
 	v4l2_device_unregister(&fmd->v4l2_dev);
 	device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c b/drivers/media/platform/marvell-ccic/cafe-driver.c
index 9c94a8b58b7c..0b85d745a831 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c
@@ -547,12 +547,11 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		goto out_pdown;
 
-	v4l2_async_notifier_init(&mcam->notifier);
+	v4l2_async_nf_init(&mcam->notifier);
 
-	asd = v4l2_async_notifier_add_i2c_subdev(&mcam->notifier,
-					i2c_adapter_id(cam->i2c_adapter),
-					ov7670_info.addr,
-					struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_i2c(&mcam->notifier,
+				    i2c_adapter_id(cam->i2c_adapter),
+				    ov7670_info.addr, struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out_smbus_shutdown;
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 141bf5d97a04..d5a12e61a8f5 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1869,7 +1869,7 @@ int mccic_register(struct mcam_camera *cam)
 	cam->mbus_code = mcam_def_mbus_code;
 
 	cam->notifier.ops = &mccic_notify_ops;
-	ret = v4l2_async_notifier_register(&cam->v4l2_dev, &cam->notifier);
+	ret = v4l2_async_nf_register(&cam->v4l2_dev, &cam->notifier);
 	if (ret < 0) {
 		cam_warn(cam, "failed to register a sensor notifier");
 		goto out;
@@ -1906,9 +1906,9 @@ int mccic_register(struct mcam_camera *cam)
 	return 0;
 
 out:
-	v4l2_async_notifier_unregister(&cam->notifier);
+	v4l2_async_nf_unregister(&cam->notifier);
 	v4l2_device_unregister(&cam->v4l2_dev);
-	v4l2_async_notifier_cleanup(&cam->notifier);
+	v4l2_async_nf_cleanup(&cam->notifier);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(mccic_register);
@@ -1928,9 +1928,9 @@ void mccic_shutdown(struct mcam_camera *cam)
 	if (cam->buffer_mode == B_vmalloc)
 		mcam_free_dma_bufs(cam);
 	v4l2_ctrl_handler_free(&cam->ctrl_handler);
-	v4l2_async_notifier_unregister(&cam->notifier);
+	v4l2_async_nf_unregister(&cam->notifier);
 	v4l2_device_unregister(&cam->v4l2_dev);
-	v4l2_async_notifier_cleanup(&cam->notifier);
+	v4l2_async_nf_cleanup(&cam->notifier);
 }
 EXPORT_SYMBOL_GPL(mccic_shutdown);
 
diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index f2f09cea751d..343ab4f7d807 100644
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -239,10 +239,10 @@ static int mmpcam_probe(struct platform_device *pdev)
 	if (!ep)
 		return -ENODEV;
 
-	v4l2_async_notifier_init(&mcam->notifier);
+	v4l2_async_nf_init(&mcam->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&mcam->notifier, ep,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&mcam->notifier, ep,
+					      struct v4l2_async_subdev);
 	fwnode_handle_put(ep);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 53025c8c7531..41f6e397f428 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -2003,7 +2003,7 @@ static int isp_remove(struct platform_device *pdev)
 {
 	struct isp_device *isp = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&isp->notifier);
+	v4l2_async_nf_unregister(&isp->notifier);
 	isp_unregister_entities(isp);
 	isp_cleanup_modules(isp);
 	isp_xclk_cleanup(isp);
@@ -2013,7 +2013,7 @@ static int isp_remove(struct platform_device *pdev)
 	__omap3isp_put(isp, false);
 
 	media_entity_enum_cleanup(&isp->crashed);
-	v4l2_async_notifier_cleanup(&isp->notifier);
+	v4l2_async_nf_cleanup(&isp->notifier);
 
 	kfree(isp);
 
@@ -2170,8 +2170,9 @@ static int isp_parse_of_endpoints(struct isp_device *isp)
 		ret = v4l2_fwnode_endpoint_parse(ep, &vep);
 
 		if (!ret) {
-			isd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&isp->notifier, ep, struct isp_async_subdev);
+			isd = v4l2_async_nf_add_fwnode_remote(&isp->notifier,
+							      ep, struct
+							      isp_async_subdev);
 			if (!IS_ERR(isd))
 				isp_parse_of_parallel_endpoint(isp->dev, &vep, &isd->bus);
 		}
@@ -2209,8 +2210,10 @@ static int isp_parse_of_endpoints(struct isp_device *isp)
 		}
 
 		if (!ret) {
-			isd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&isp->notifier, ep, struct isp_async_subdev);
+			isd = v4l2_async_nf_add_fwnode_remote(&isp->notifier,
+							      ep,
+							      struct
+							      isp_async_subdev);
 
 			if (!IS_ERR(isd)) {
 				switch (vep.bus_type) {
@@ -2287,7 +2290,7 @@ static int isp_probe(struct platform_device *pdev)
 
 	mutex_init(&isp->isp_mutex);
 	spin_lock_init(&isp->stat_lock);
-	v4l2_async_notifier_init(&isp->notifier);
+	v4l2_async_nf_init(&isp->notifier);
 	isp->dev = &pdev->dev;
 
 	ret = isp_parse_of_endpoints(isp);
@@ -2416,7 +2419,7 @@ static int isp_probe(struct platform_device *pdev)
 
 	isp->notifier.ops = &isp_subdev_notifier_ops;
 
-	ret = v4l2_async_notifier_register(&isp->v4l2_dev, &isp->notifier);
+	ret = v4l2_async_nf_register(&isp->v4l2_dev, &isp->notifier);
 	if (ret)
 		goto error_register_entities;
 
@@ -2435,7 +2438,7 @@ static int isp_probe(struct platform_device *pdev)
 	isp_xclk_cleanup(isp);
 	__omap3isp_put(isp, false);
 error:
-	v4l2_async_notifier_cleanup(&isp->notifier);
+	v4l2_async_nf_cleanup(&isp->notifier);
 	mutex_destroy(&isp->isp_mutex);
 error_release_isp:
 	kfree(isp);
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index dd510ee9b58a..ff29478aded5 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -2246,10 +2246,9 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 	if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
 		pcdev->platform_flags |= PXA_CAMERA_PCLK_EN;
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&pcdev->notifier,
-				of_fwnode_handle(np),
-				struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&pcdev->notifier,
+					      of_fwnode_handle(np),
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd))
 		err = PTR_ERR(asd);
 out:
@@ -2286,7 +2285,7 @@ static int pxa_camera_probe(struct platform_device *pdev)
 	if (IS_ERR(pcdev->clk))
 		return PTR_ERR(pcdev->clk);
 
-	v4l2_async_notifier_init(&pcdev->notifier);
+	v4l2_async_nf_init(&pcdev->notifier);
 	pcdev->res = res;
 	pcdev->pdata = pdev->dev.platform_data;
 	if (pcdev->pdata) {
@@ -2294,11 +2293,10 @@ static int pxa_camera_probe(struct platform_device *pdev)
 
 		pcdev->platform_flags = pcdev->pdata->flags;
 		pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
-		asd = v4l2_async_notifier_add_i2c_subdev(
-				&pcdev->notifier,
-				pcdev->pdata->sensor_i2c_adapter_id,
-				pcdev->pdata->sensor_i2c_address,
-				struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_i2c(&pcdev->notifier,
+					    pcdev->pdata->sensor_i2c_adapter_id,
+					    pcdev->pdata->sensor_i2c_address,
+					    struct v4l2_async_subdev);
 		if (IS_ERR(asd))
 			err = PTR_ERR(asd);
 	} else if (pdev->dev.of_node) {
@@ -2399,13 +2397,13 @@ static int pxa_camera_probe(struct platform_device *pdev)
 		goto exit_notifier_cleanup;
 
 	pcdev->notifier.ops = &pxa_camera_sensor_ops;
-	err = v4l2_async_notifier_register(&pcdev->v4l2_dev, &pcdev->notifier);
+	err = v4l2_async_nf_register(&pcdev->v4l2_dev, &pcdev->notifier);
 	if (err)
 		goto exit_notifier_cleanup;
 
 	return 0;
 exit_notifier_cleanup:
-	v4l2_async_notifier_cleanup(&pcdev->notifier);
+	v4l2_async_nf_cleanup(&pcdev->notifier);
 	v4l2_device_unregister(&pcdev->v4l2_dev);
 exit_deactivate:
 	pxa_camera_deactivate(pcdev);
@@ -2429,8 +2427,8 @@ static int pxa_camera_remove(struct platform_device *pdev)
 	dma_release_channel(pcdev->dma_chans[1]);
 	dma_release_channel(pcdev->dma_chans[2]);
 
-	v4l2_async_notifier_unregister(&pcdev->notifier);
-	v4l2_async_notifier_cleanup(&pcdev->notifier);
+	v4l2_async_nf_unregister(&pcdev->notifier);
+	v4l2_async_nf_cleanup(&pcdev->notifier);
 
 	v4l2_device_unregister(&pcdev->v4l2_dev);
 
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index d82bbc2213a6..4da4403e15bc 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -689,9 +689,9 @@ static int camss_of_parse_ports(struct camss *camss)
 			goto err_cleanup;
 		}
 
-		csd = v4l2_async_notifier_add_fwnode_subdev(
-			&camss->notifier, of_fwnode_handle(remote),
-			struct camss_async_subdev);
+		csd = v4l2_async_nf_add_fwnode(&camss->notifier,
+					       of_fwnode_handle(remote),
+					       struct camss_async_subdev);
 		of_node_put(remote);
 		if (IS_ERR(csd)) {
 			ret = PTR_ERR(csd);
@@ -1074,7 +1074,7 @@ static int camss_probe(struct platform_device *pdev)
 		goto err_free;
 	}
 
-	v4l2_async_notifier_init(&camss->notifier);
+	v4l2_async_nf_init(&camss->notifier);
 
 	num_subdevs = camss_of_parse_ports(camss);
 	if (num_subdevs < 0) {
@@ -1110,8 +1110,8 @@ static int camss_probe(struct platform_device *pdev)
 	if (num_subdevs) {
 		camss->notifier.ops = &camss_subdev_notifier_ops;
 
-		ret = v4l2_async_notifier_register(&camss->v4l2_dev,
-						   &camss->notifier);
+		ret = v4l2_async_nf_register(&camss->v4l2_dev,
+					     &camss->notifier);
 		if (ret) {
 			dev_err(dev,
 				"Failed to register async subdev nodes: %d\n",
@@ -1159,7 +1159,7 @@ static int camss_probe(struct platform_device *pdev)
 err_register_entities:
 	v4l2_device_unregister(&camss->v4l2_dev);
 err_cleanup:
-	v4l2_async_notifier_cleanup(&camss->notifier);
+	v4l2_async_nf_cleanup(&camss->notifier);
 err_free:
 	kfree(camss);
 
@@ -1193,8 +1193,8 @@ static int camss_remove(struct platform_device *pdev)
 {
 	struct camss *camss = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&camss->notifier);
-	v4l2_async_notifier_cleanup(&camss->notifier);
+	v4l2_async_nf_unregister(&camss->notifier);
+	v4l2_async_nf_cleanup(&camss->notifier);
 	camss_unregister_entities(camss);
 
 	if (atomic_read(&camss->ref_count) == 0)
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index cb3025992817..2380479b8bbb 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -641,8 +641,8 @@ static int rvin_parallel_parse_of(struct rvin_dev *vin)
 		goto out;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&vin->notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&vin->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -661,7 +661,7 @@ static int rvin_parallel_init(struct rvin_dev *vin)
 {
 	int ret;
 
-	v4l2_async_notifier_init(&vin->notifier);
+	v4l2_async_nf_init(&vin->notifier);
 
 	ret = rvin_parallel_parse_of(vin);
 	if (ret)
@@ -675,10 +675,10 @@ static int rvin_parallel_init(struct rvin_dev *vin)
 		to_of_node(vin->parallel.asd->match.fwnode));
 
 	vin->notifier.ops = &rvin_parallel_notify_ops;
-	ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier);
+	ret = v4l2_async_nf_register(&vin->v4l2_dev, &vin->notifier);
 	if (ret < 0) {
 		vin_err(vin, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&vin->notifier);
+		v4l2_async_nf_cleanup(&vin->notifier);
 		return ret;
 	}
 
@@ -841,9 +841,8 @@ static int rvin_mc_parse_of(struct rvin_dev *vin, unsigned int id)
 		goto out;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&vin->group->notifier,
-						    fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&vin->group->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -882,7 +881,7 @@ static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
 
 	mutex_unlock(&vin->group->lock);
 
-	v4l2_async_notifier_init(&vin->group->notifier);
+	v4l2_async_nf_init(&vin->group->notifier);
 
 	/*
 	 * Have all VIN's look for CSI-2 subdevices. Some subdevices will
@@ -907,11 +906,11 @@ static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
 		return 0;
 
 	vin->group->notifier.ops = &rvin_group_notify_ops;
-	ret = v4l2_async_notifier_register(&vin->v4l2_dev,
+	ret = v4l2_async_nf_register(&vin->v4l2_dev,
 					   &vin->group->notifier);
 	if (ret < 0) {
 		vin_err(vin, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&vin->group->notifier);
+		v4l2_async_nf_cleanup(&vin->group->notifier);
 		return ret;
 	}
 
@@ -1451,8 +1450,8 @@ static int rcar_vin_probe(struct platform_device *pdev)
 	if (vin->info->use_mc) {
 		mutex_lock(&vin->group->lock);
 		if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) {
-			v4l2_async_notifier_unregister(&vin->group->notifier);
-			v4l2_async_notifier_cleanup(&vin->group->notifier);
+			v4l2_async_nf_unregister(&vin->group->notifier);
+			v4l2_async_nf_cleanup(&vin->group->notifier);
 		}
 		mutex_unlock(&vin->group->lock);
 		rvin_group_put(vin);
@@ -1472,12 +1471,12 @@ static int rcar_vin_remove(struct platform_device *pdev)
 
 	rvin_v4l2_unregister(vin);
 
-	v4l2_async_notifier_unregister(&vin->notifier);
-	v4l2_async_notifier_cleanup(&vin->notifier);
+	v4l2_async_nf_unregister(&vin->notifier);
+	v4l2_async_nf_cleanup(&vin->notifier);
 
 	if (vin->info->use_mc) {
-		v4l2_async_notifier_unregister(&vin->group->notifier);
-		v4l2_async_notifier_cleanup(&vin->group->notifier);
+		v4l2_async_nf_unregister(&vin->group->notifier);
+		v4l2_async_nf_cleanup(&vin->group->notifier);
 		rvin_group_put(vin);
 	}
 
diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index e06cd512aba2..a6de8d13cd57 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -906,19 +906,18 @@ static int rcsi2_parse_dt(struct rcar_csi2 *priv)
 
 	dev_dbg(priv->dev, "Found '%pOF'\n", to_of_node(fwnode));
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 	priv->notifier.ops = &rcar_csi2_notify_ops;
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&priv->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	fwnode_handle_put(fwnode);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
 
-	ret = v4l2_async_subdev_notifier_register(&priv->subdev,
-						  &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->subdev, &priv->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&priv->notifier);
+		v4l2_async_nf_cleanup(&priv->notifier);
 
 	return ret;
 }
@@ -1265,8 +1264,8 @@ static int rcsi2_probe(struct platform_device *pdev)
 	return 0;
 
 error:
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 
 	return ret;
 }
@@ -1275,8 +1274,8 @@ static int rcsi2_remove(struct platform_device *pdev)
 {
 	struct rcar_csi2 *priv = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 	v4l2_async_unregister_subdev(&priv->subdev);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/media/platform/rcar_drif.c b/drivers/media/platform/rcar_drif.c
index 83bd9a412a56..f38f43c4832a 100644
--- a/drivers/media/platform/rcar_drif.c
+++ b/drivers/media/platform/rcar_drif.c
@@ -1213,7 +1213,7 @@ static int rcar_drif_parse_subdevs(struct rcar_drif_sdr *sdr)
 	struct fwnode_handle *fwnode, *ep;
 	struct v4l2_async_subdev *asd;
 
-	v4l2_async_notifier_init(notifier);
+	v4l2_async_nf_init(notifier);
 
 	ep = fwnode_graph_get_next_endpoint(of_fwnode_handle(sdr->dev->of_node),
 					    NULL);
@@ -1230,8 +1230,8 @@ static int rcar_drif_parse_subdevs(struct rcar_drif_sdr *sdr)
 		return -EINVAL;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(notifier, fwnode,
+				       struct v4l2_async_subdev);
 	fwnode_handle_put(fwnode);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
@@ -1347,7 +1347,7 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 	sdr->notifier.ops = &rcar_drif_notify_ops;
 
 	/* Register notifier */
-	ret = v4l2_async_notifier_register(&sdr->v4l2_dev, &sdr->notifier);
+	ret = v4l2_async_nf_register(&sdr->v4l2_dev, &sdr->notifier);
 	if (ret < 0) {
 		dev_err(sdr->dev, "failed: notifier register ret %d\n", ret);
 		goto cleanup;
@@ -1356,7 +1356,7 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 	return ret;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&sdr->notifier);
+	v4l2_async_nf_cleanup(&sdr->notifier);
 error:
 	v4l2_device_unregister(&sdr->v4l2_dev);
 
@@ -1366,8 +1366,8 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 /* V4L2 SDR device remove */
 static void rcar_drif_sdr_remove(struct rcar_drif_sdr *sdr)
 {
-	v4l2_async_notifier_unregister(&sdr->notifier);
-	v4l2_async_notifier_cleanup(&sdr->notifier);
+	v4l2_async_nf_unregister(&sdr->notifier);
+	v4l2_async_nf_cleanup(&sdr->notifier);
 	v4l2_device_unregister(&sdr->v4l2_dev);
 }
 
diff --git a/drivers/media/platform/renesas-ceu.c b/drivers/media/platform/renesas-ceu.c
index cd137101d41e..f883a4a935a2 100644
--- a/drivers/media/platform/renesas-ceu.c
+++ b/drivers/media/platform/renesas-ceu.c
@@ -1510,12 +1510,12 @@ static int ceu_parse_platform_data(struct ceu_device *ceudev,
 
 		/* Setup the ceu subdevice and the async subdevice. */
 		async_sd = &pdata->subdevs[i];
-		ceu_sd = v4l2_async_notifier_add_i2c_subdev(&ceudev->notifier,
-				async_sd->i2c_adapter_id,
-				async_sd->i2c_address,
-				struct ceu_subdev);
+		ceu_sd = v4l2_async_nf_add_i2c(&ceudev->notifier,
+					       async_sd->i2c_adapter_id,
+					       async_sd->i2c_address,
+					       struct ceu_subdev);
 		if (IS_ERR(ceu_sd)) {
-			v4l2_async_notifier_cleanup(&ceudev->notifier);
+			v4l2_async_nf_cleanup(&ceudev->notifier);
 			return PTR_ERR(ceu_sd);
 		}
 		ceu_sd->mbus_flags = async_sd->flags;
@@ -1573,9 +1573,9 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 		}
 
 		/* Setup the ceu subdevice and the async subdevice. */
-		ceu_sd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&ceudev->notifier, of_fwnode_handle(ep),
-				struct ceu_subdev);
+		ceu_sd = v4l2_async_nf_add_fwnode_remote(&ceudev->notifier,
+							 of_fwnode_handle(ep),
+							 struct ceu_subdev);
 		if (IS_ERR(ceu_sd)) {
 			ret = PTR_ERR(ceu_sd);
 			goto error_cleanup;
@@ -1589,7 +1589,7 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 	return num_ep;
 
 error_cleanup:
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 	of_node_put(ep);
 	return ret;
 }
@@ -1666,7 +1666,7 @@ static int ceu_probe(struct platform_device *pdev)
 	if (ret)
 		goto error_pm_disable;
 
-	v4l2_async_notifier_init(&ceudev->notifier);
+	v4l2_async_nf_init(&ceudev->notifier);
 
 	if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
 		ceu_data = of_device_get_match_data(dev);
@@ -1688,8 +1688,7 @@ static int ceu_probe(struct platform_device *pdev)
 
 	ceudev->notifier.v4l2_dev	= &ceudev->v4l2_dev;
 	ceudev->notifier.ops		= &ceu_notify_ops;
-	ret = v4l2_async_notifier_register(&ceudev->v4l2_dev,
-					   &ceudev->notifier);
+	ret = v4l2_async_nf_register(&ceudev->v4l2_dev, &ceudev->notifier);
 	if (ret)
 		goto error_cleanup;
 
@@ -1698,7 +1697,7 @@ static int ceu_probe(struct platform_device *pdev)
 	return 0;
 
 error_cleanup:
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 error_v4l2_unregister:
 	v4l2_device_unregister(&ceudev->v4l2_dev);
 error_pm_disable:
@@ -1715,9 +1714,9 @@ static int ceu_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(ceudev->dev);
 
-	v4l2_async_notifier_unregister(&ceudev->notifier);
+	v4l2_async_nf_unregister(&ceudev->notifier);
 
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 
 	v4l2_device_unregister(&ceudev->v4l2_dev);
 
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 7474150b94ed..1f2a503ea130 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -246,7 +246,7 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 	unsigned int next_id = 0;
 	int ret;
 
-	v4l2_async_notifier_init(ntf);
+	v4l2_async_nf_init(ntf);
 
 	while (1) {
 		struct v4l2_fwnode_endpoint vep = {
@@ -265,8 +265,9 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 		if (ret)
 			goto err_parse;
 
-		rk_asd = v4l2_async_notifier_add_fwnode_remote_subdev(ntf, ep,
-							struct rkisp1_sensor_async);
+		rk_asd = v4l2_async_nf_add_fwnode_remote(ntf, ep,
+							 struct
+							 rkisp1_sensor_async);
 		if (IS_ERR(rk_asd)) {
 			ret = PTR_ERR(rk_asd);
 			goto err_parse;
@@ -286,16 +287,16 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 		continue;
 err_parse:
 		fwnode_handle_put(ep);
-		v4l2_async_notifier_cleanup(ntf);
+		v4l2_async_nf_cleanup(ntf);
 		return ret;
 	}
 
 	if (next_id == 0)
 		dev_dbg(rkisp1->dev, "no remote subdevice found\n");
 	ntf->ops = &rkisp1_subdev_notifier_ops;
-	ret = v4l2_async_notifier_register(&rkisp1->v4l2_dev, ntf);
+	ret = v4l2_async_nf_register(&rkisp1->v4l2_dev, ntf);
 	if (ret) {
-		v4l2_async_notifier_cleanup(ntf);
+		v4l2_async_nf_cleanup(ntf);
 		return ret;
 	}
 	return 0;
@@ -542,8 +543,8 @@ static int rkisp1_remove(struct platform_device *pdev)
 {
 	struct rkisp1_device *rkisp1 = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&rkisp1->notifier);
-	v4l2_async_notifier_cleanup(&rkisp1->notifier);
+	v4l2_async_nf_unregister(&rkisp1->notifier);
+	v4l2_async_nf_cleanup(&rkisp1->notifier);
 
 	rkisp1_params_unregister(rkisp1);
 	rkisp1_stats_unregister(rkisp1);
diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index bbcc2254fa2e..6f9484eb0ab3 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1817,11 +1817,11 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
 		return -EINVAL;
 	}
 
-	v4l2_async_notifier_init(&dcmi->notifier);
+	v4l2_async_nf_init(&dcmi->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&dcmi->notifier, of_fwnode_handle(ep),
-		struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&dcmi->notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 
 	of_node_put(ep);
 
@@ -1832,10 +1832,10 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
 
 	dcmi->notifier.ops = &dcmi_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&dcmi->v4l2_dev, &dcmi->notifier);
+	ret = v4l2_async_nf_register(&dcmi->v4l2_dev, &dcmi->notifier);
 	if (ret < 0) {
 		dev_err(dcmi->dev, "Failed to register notifier\n");
-		v4l2_async_notifier_cleanup(&dcmi->notifier);
+		v4l2_async_nf_cleanup(&dcmi->notifier);
 		return ret;
 	}
 
@@ -2053,7 +2053,7 @@ static int dcmi_probe(struct platform_device *pdev)
 	return 0;
 
 err_cleanup:
-	v4l2_async_notifier_cleanup(&dcmi->notifier);
+	v4l2_async_nf_cleanup(&dcmi->notifier);
 err_media_entity_cleanup:
 	media_entity_cleanup(&dcmi->vdev->entity);
 err_device_release:
@@ -2073,8 +2073,8 @@ static int dcmi_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
-	v4l2_async_notifier_unregister(&dcmi->notifier);
-	v4l2_async_notifier_cleanup(&dcmi->notifier);
+	v4l2_async_nf_unregister(&dcmi->notifier);
+	v4l2_async_nf_cleanup(&dcmi->notifier);
 	media_entity_cleanup(&dcmi->vdev->entity);
 	v4l2_device_unregister(&dcmi->v4l2_dev);
 	media_device_cleanup(&dcmi->mdev);
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
index 8d40a7acba9c..94e98e470aff 100644
--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
@@ -122,7 +122,7 @@ static int sun4i_csi_notifier_init(struct sun4i_csi *csi)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -135,8 +135,8 @@ static int sun4i_csi_notifier_init(struct sun4i_csi *csi)
 
 	csi->bus = vep.bus.parallel;
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&csi->notifier, ep,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, ep,
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -244,7 +244,7 @@ static int sun4i_csi_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unregister_media;
 
-	ret = v4l2_async_notifier_register(&csi->v4l, &csi->notifier);
+	ret = v4l2_async_nf_register(&csi->v4l, &csi->notifier);
 	if (ret) {
 		dev_err(csi->dev, "Couldn't register our notifier.\n");
 		goto err_unregister_media;
@@ -268,8 +268,8 @@ static int sun4i_csi_remove(struct platform_device *pdev)
 {
 	struct sun4i_csi *csi = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	vb2_video_unregister_device(&csi->vdev);
 	media_device_unregister(&csi->mdev);
 	sun4i_csi_dma_unregister(csi);
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index 27935f1e9555..08df0c833423 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -717,8 +717,8 @@ static int sun6i_csi_fwnode_parse(struct device *dev,
 static void sun6i_csi_v4l2_cleanup(struct sun6i_csi *csi)
 {
 	media_device_unregister(&csi->media_dev);
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	sun6i_video_cleanup(&csi->video);
 	v4l2_device_unregister(&csi->v4l2_dev);
 	v4l2_ctrl_handler_free(&csi->ctrl_handler);
@@ -737,7 +737,7 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 		 "platform:%s", dev_name(csi->dev));
 
 	media_device_init(&csi->media_dev);
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ret = v4l2_ctrl_handler_init(&csi->ctrl_handler, 0);
 	if (ret) {
@@ -759,16 +759,17 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 	if (ret)
 		goto unreg_v4l2;
 
-	ret = v4l2_async_notifier_parse_fwnode_endpoints(csi->dev,
-							 &csi->notifier,
-							 sizeof(struct v4l2_async_subdev),
-							 sun6i_csi_fwnode_parse);
+	ret = v4l2_async_nf_parse_fwnode_endpoints(csi->dev,
+						   &csi->notifier,
+						   sizeof(struct
+							  v4l2_async_subdev),
+						   sun6i_csi_fwnode_parse);
 	if (ret)
 		goto clean_video;
 
 	csi->notifier.ops = &sun6i_csi_async_ops;
 
-	ret = v4l2_async_notifier_register(&csi->v4l2_dev, &csi->notifier);
+	ret = v4l2_async_nf_register(&csi->v4l2_dev, &csi->notifier);
 	if (ret) {
 		dev_err(csi->dev, "notifier registration failed\n");
 		goto clean_video;
@@ -783,7 +784,7 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 free_ctrl:
 	v4l2_ctrl_handler_free(&csi->ctrl_handler);
 clean_media:
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	media_device_cleanup(&csi->media_dev);
 
 	return ret;
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index fa0931788040..330187242b74 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -679,7 +679,7 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 	unsigned int i;
 	int ret;
 
-	v4l2_async_notifier_init(&cal->notifier);
+	v4l2_async_nf_init(&cal->notifier);
 	cal->notifier.ops = &cal_async_notifier_ops;
 
 	for (i = 0; i < cal->data->num_csi2_phy; ++i) {
@@ -691,9 +691,9 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 			continue;
 
 		fwnode = of_fwnode_handle(phy->sensor_node);
-		casd = v4l2_async_notifier_add_fwnode_subdev(&cal->notifier,
-							     fwnode,
-							     struct cal_v4l2_async_subdev);
+		casd = v4l2_async_nf_add_fwnode(&cal->notifier,
+						fwnode,
+						struct cal_v4l2_async_subdev);
 		if (IS_ERR(casd)) {
 			phy_err(phy, "Failed to add subdev to notifier\n");
 			ret = PTR_ERR(casd);
@@ -703,7 +703,7 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 		casd->phy = phy;
 	}
 
-	ret = v4l2_async_notifier_register(&cal->v4l2_dev, &cal->notifier);
+	ret = v4l2_async_nf_register(&cal->v4l2_dev, &cal->notifier);
 	if (ret) {
 		cal_err(cal, "Error registering async notifier\n");
 		goto error;
@@ -712,14 +712,14 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 	return 0;
 
 error:
-	v4l2_async_notifier_cleanup(&cal->notifier);
+	v4l2_async_nf_cleanup(&cal->notifier);
 	return ret;
 }
 
 static void cal_async_notifier_unregister(struct cal_dev *cal)
 {
-	v4l2_async_notifier_unregister(&cal->notifier);
-	v4l2_async_notifier_cleanup(&cal->notifier);
+	v4l2_async_nf_unregister(&cal->notifier);
+	v4l2_async_nf_cleanup(&cal->notifier);
 }
 
 /* ------------------------------------------------------------------
diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c
index 133122e38515..f482d3206547 100644
--- a/drivers/media/platform/video-mux.c
+++ b/drivers/media/platform/video-mux.c
@@ -358,7 +358,7 @@ static int video_mux_async_register(struct video_mux *vmux,
 	unsigned int i;
 	int ret;
 
-	v4l2_async_notifier_init(&vmux->notifier);
+	v4l2_async_nf_init(&vmux->notifier);
 
 	for (i = 0; i < num_input_pads; i++) {
 		struct v4l2_async_subdev *asd;
@@ -370,8 +370,8 @@ static int video_mux_async_register(struct video_mux *vmux,
 		if (!ep)
 			continue;
 
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&vmux->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&vmux->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -385,7 +385,7 @@ static int video_mux_async_register(struct video_mux *vmux,
 
 	vmux->notifier.ops = &video_mux_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&vmux->subdev,
+	ret = v4l2_async_subdev_nf_register(&vmux->subdev,
 						  &vmux->notifier);
 	if (ret)
 		return ret;
@@ -467,8 +467,8 @@ static int video_mux_probe(struct platform_device *pdev)
 
 	ret = video_mux_async_register(vmux, num_pads - 1);
 	if (ret) {
-		v4l2_async_notifier_unregister(&vmux->notifier);
-		v4l2_async_notifier_cleanup(&vmux->notifier);
+		v4l2_async_nf_unregister(&vmux->notifier);
+		v4l2_async_nf_cleanup(&vmux->notifier);
 	}
 
 	return ret;
@@ -479,8 +479,8 @@ static int video_mux_remove(struct platform_device *pdev)
 	struct video_mux *vmux = platform_get_drvdata(pdev);
 	struct v4l2_subdev *sd = &vmux->subdev;
 
-	v4l2_async_notifier_unregister(&vmux->notifier);
-	v4l2_async_notifier_cleanup(&vmux->notifier);
+	v4l2_async_nf_unregister(&vmux->notifier);
+	v4l2_async_nf_cleanup(&vmux->notifier);
 	v4l2_async_unregister_subdev(sd);
 	media_entity_cleanup(&sd->entity);
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index bf4015d852e3..750cdbc3b460 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -382,9 +382,8 @@ static int xvip_graph_parse_one(struct xvip_composite_device *xdev,
 			continue;
 		}
 
-		xge = v4l2_async_notifier_add_fwnode_subdev(
-			&xdev->notifier, remote,
-			struct xvip_graph_entity);
+		xge = v4l2_async_nf_add_fwnode(&xdev->notifier, remote,
+					       struct xvip_graph_entity);
 		fwnode_handle_put(remote);
 		if (IS_ERR(xge)) {
 			ret = PTR_ERR(xge);
@@ -395,7 +394,7 @@ static int xvip_graph_parse_one(struct xvip_composite_device *xdev,
 	return 0;
 
 err_notifier_cleanup:
-	v4l2_async_notifier_cleanup(&xdev->notifier);
+	v4l2_async_nf_cleanup(&xdev->notifier);
 	fwnode_handle_put(ep);
 	return ret;
 }
@@ -420,7 +419,7 @@ static int xvip_graph_parse(struct xvip_composite_device *xdev)
 		entity = to_xvip_entity(asd);
 		ret = xvip_graph_parse_one(xdev, entity->asd.match.fwnode);
 		if (ret < 0) {
-			v4l2_async_notifier_cleanup(&xdev->notifier);
+			v4l2_async_nf_cleanup(&xdev->notifier);
 			break;
 		}
 	}
@@ -496,8 +495,8 @@ static void xvip_graph_cleanup(struct xvip_composite_device *xdev)
 	struct xvip_dma *dmap;
 	struct xvip_dma *dma;
 
-	v4l2_async_notifier_unregister(&xdev->notifier);
-	v4l2_async_notifier_cleanup(&xdev->notifier);
+	v4l2_async_nf_unregister(&xdev->notifier);
+	v4l2_async_nf_cleanup(&xdev->notifier);
 
 	list_for_each_entry_safe(dma, dmap, &xdev->dmas, list) {
 		xvip_dma_cleanup(dma);
@@ -531,7 +530,7 @@ static int xvip_graph_init(struct xvip_composite_device *xdev)
 	/* Register the subdevices notifier. */
 	xdev->notifier.ops = &xvip_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&xdev->v4l2_dev, &xdev->notifier);
+	ret = v4l2_async_nf_register(&xdev->v4l2_dev, &xdev->notifier);
 	if (ret < 0) {
 		dev_err(xdev->dev, "notifier registration failed\n");
 		goto done;
@@ -595,7 +594,7 @@ static int xvip_composite_probe(struct platform_device *pdev)
 
 	xdev->dev = &pdev->dev;
 	INIT_LIST_HEAD(&xdev->dmas);
-	v4l2_async_notifier_init(&xdev->notifier);
+	v4l2_async_nf_init(&xdev->notifier);
 
 	ret = xvip_composite_v4l2_init(xdev);
 	if (ret < 0)
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index e638aa8aecb7..21b3890b96fc 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -24,7 +24,7 @@
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
-static int v4l2_async_notifier_call_bound(struct v4l2_async_notifier *n,
+static int v4l2_async_nf_call_bound(struct v4l2_async_notifier *n,
 					  struct v4l2_subdev *subdev,
 					  struct v4l2_async_subdev *asd)
 {
@@ -34,7 +34,7 @@ static int v4l2_async_notifier_call_bound(struct v4l2_async_notifier *n,
 	return n->ops->bound(n, subdev, asd);
 }
 
-static void v4l2_async_notifier_call_unbind(struct v4l2_async_notifier *n,
+static void v4l2_async_nf_call_unbind(struct v4l2_async_notifier *n,
 					    struct v4l2_subdev *subdev,
 					    struct v4l2_async_subdev *asd)
 {
@@ -44,7 +44,7 @@ static void v4l2_async_notifier_call_unbind(struct v4l2_async_notifier *n,
 	n->ops->unbind(n, subdev, asd);
 }
 
-static int v4l2_async_notifier_call_complete(struct v4l2_async_notifier *n)
+static int v4l2_async_nf_call_complete(struct v4l2_async_notifier *n)
 {
 	if (!n->ops || !n->ops->complete)
 		return 0;
@@ -215,7 +215,7 @@ v4l2_async_find_subdev_notifier(struct v4l2_subdev *sd)
 
 /* Get v4l2_device related to the notifier if one can be found. */
 static struct v4l2_device *
-v4l2_async_notifier_find_v4l2_dev(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_find_v4l2_dev(struct v4l2_async_notifier *notifier)
 {
 	while (notifier->parent)
 		notifier = notifier->parent;
@@ -227,7 +227,7 @@ v4l2_async_notifier_find_v4l2_dev(struct v4l2_async_notifier *notifier)
  * Return true if all child sub-device notifiers are complete, false otherwise.
  */
 static bool
-v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_can_complete(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_subdev *sd;
 
@@ -239,7 +239,7 @@ v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
 			v4l2_async_find_subdev_notifier(sd);
 
 		if (subdev_notifier &&
-		    !v4l2_async_notifier_can_complete(subdev_notifier))
+		    !v4l2_async_nf_can_complete(subdev_notifier))
 			return false;
 	}
 
@@ -251,7 +251,7 @@ v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
  * sub-devices have been bound; v4l2_device is also available then.
  */
 static int
-v4l2_async_notifier_try_complete(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_try_complete(struct v4l2_async_notifier *notifier)
 {
 	/* Quick check whether there are still more sub-devices here. */
 	if (!list_empty(&notifier->waiting))
@@ -266,14 +266,14 @@ v4l2_async_notifier_try_complete(struct v4l2_async_notifier *notifier)
 		return 0;
 
 	/* Is everything ready? */
-	if (!v4l2_async_notifier_can_complete(notifier))
+	if (!v4l2_async_nf_can_complete(notifier))
 		return 0;
 
-	return v4l2_async_notifier_call_complete(notifier);
+	return v4l2_async_nf_call_complete(notifier);
 }
 
 static int
-v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier);
+v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier);
 
 static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 				   struct v4l2_device *v4l2_dev,
@@ -287,7 +287,7 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	if (ret < 0)
 		return ret;
 
-	ret = v4l2_async_notifier_call_bound(notifier, sd, asd);
+	ret = v4l2_async_nf_call_bound(notifier, sd, asd);
 	if (ret < 0) {
 		v4l2_device_unregister_subdev(sd);
 		return ret;
@@ -315,15 +315,15 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	 */
 	subdev_notifier->parent = notifier;
 
-	return v4l2_async_notifier_try_all_subdevs(subdev_notifier);
+	return v4l2_async_nf_try_all_subdevs(subdev_notifier);
 }
 
 /* Test all async sub-devices in a notifier for a match. */
 static int
-v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_device *v4l2_dev =
-		v4l2_async_notifier_find_v4l2_dev(notifier);
+		v4l2_async_nf_find_v4l2_dev(notifier);
 	struct v4l2_subdev *sd;
 
 	if (!v4l2_dev)
@@ -367,7 +367,7 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd)
 
 /* Unbind all sub-devices in the notifier tree. */
 static void
-v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_subdev *sd, *tmp;
 
@@ -376,9 +376,9 @@ v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 			v4l2_async_find_subdev_notifier(sd);
 
 		if (subdev_notifier)
-			v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+			v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
 
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 		v4l2_async_cleanup(sd);
 
 		list_move(&sd->async_list, &subdev_list);
@@ -389,8 +389,8 @@ v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 
 /* See if an async sub-device can be found in a notifier's lists. */
 static bool
-__v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
-				       struct v4l2_async_subdev *asd)
+__v4l2_async_nf_has_async_subdev(struct v4l2_async_notifier *notifier,
+				 struct v4l2_async_subdev *asd)
 {
 	struct v4l2_async_subdev *asd_y;
 	struct v4l2_subdev *sd;
@@ -416,9 +416,8 @@ __v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
  * If @this_index < 0, search the notifier's entire @asd_list.
  */
 static bool
-v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
-				     struct v4l2_async_subdev *asd,
-				     int this_index)
+v4l2_async_nf_has_async_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd, int this_index)
 {
 	struct v4l2_async_subdev *asd_y;
 	int j = 0;
@@ -435,15 +434,15 @@ v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
 
 	/* Check that an asd does not exist in other notifiers. */
 	list_for_each_entry(notifier, &notifier_list, list)
-		if (__v4l2_async_notifier_has_async_subdev(notifier, asd))
+		if (__v4l2_async_nf_has_async_subdev(notifier, asd))
 			return true;
 
 	return false;
 }
 
-static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
-					 struct v4l2_async_subdev *asd,
-					 int this_index)
+static int v4l2_async_nf_asd_valid(struct v4l2_async_notifier *notifier,
+				   struct v4l2_async_subdev *asd,
+				   int this_index)
 {
 	struct device *dev =
 		notifier->v4l2_dev ? notifier->v4l2_dev->dev : NULL;
@@ -454,7 +453,7 @@ static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
 	switch (asd->match_type) {
 	case V4L2_ASYNC_MATCH_I2C:
 	case V4L2_ASYNC_MATCH_FWNODE:
-		if (v4l2_async_notifier_has_async_subdev(notifier, asd,
+		if (v4l2_async_nf_has_async_subdev(notifier, asd,
 							 this_index)) {
 			dev_dbg(dev, "subdev descriptor already listed in this or other notifiers\n");
 			return -EEXIST;
@@ -469,13 +468,13 @@ static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
 	return 0;
 }
 
-void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_init(struct v4l2_async_notifier *notifier)
 {
 	INIT_LIST_HEAD(&notifier->asd_list);
 }
-EXPORT_SYMBOL(v4l2_async_notifier_init);
+EXPORT_SYMBOL(v4l2_async_nf_init);
 
-static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
+static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_async_subdev *asd;
 	int ret, i = 0;
@@ -486,18 +485,18 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	mutex_lock(&list_lock);
 
 	list_for_each_entry(asd, &notifier->asd_list, asd_list) {
-		ret = v4l2_async_notifier_asd_valid(notifier, asd, i++);
+		ret = v4l2_async_nf_asd_valid(notifier, asd, i++);
 		if (ret)
 			goto err_unlock;
 
 		list_add_tail(&asd->list, &notifier->waiting);
 	}
 
-	ret = v4l2_async_notifier_try_all_subdevs(notifier);
+	ret = v4l2_async_nf_try_all_subdevs(notifier);
 	if (ret < 0)
 		goto err_unbind;
 
-	ret = v4l2_async_notifier_try_complete(notifier);
+	ret = v4l2_async_nf_try_complete(notifier);
 	if (ret < 0)
 		goto err_unbind;
 
@@ -512,7 +511,7 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	/*
 	 * On failure, unbind all sub-devices registered through this notifier.
 	 */
-	v4l2_async_notifier_unbind_all_subdevs(notifier);
+	v4l2_async_nf_unbind_all_subdevs(notifier);
 
 err_unlock:
 	mutex_unlock(&list_lock);
@@ -520,8 +519,8 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	return ret;
 }
 
-int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
-				 struct v4l2_async_notifier *notifier)
+int v4l2_async_nf_register(struct v4l2_device *v4l2_dev,
+			   struct v4l2_async_notifier *notifier)
 {
 	int ret;
 
@@ -530,16 +529,16 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
 
 	notifier->v4l2_dev = v4l2_dev;
 
-	ret = __v4l2_async_notifier_register(notifier);
+	ret = __v4l2_async_nf_register(notifier);
 	if (ret)
 		notifier->v4l2_dev = NULL;
 
 	return ret;
 }
-EXPORT_SYMBOL(v4l2_async_notifier_register);
+EXPORT_SYMBOL(v4l2_async_nf_register);
 
-int v4l2_async_subdev_notifier_register(struct v4l2_subdev *sd,
-					struct v4l2_async_notifier *notifier)
+int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd,
+				  struct v4l2_async_notifier *notifier)
 {
 	int ret;
 
@@ -548,21 +547,21 @@ int v4l2_async_subdev_notifier_register(struct v4l2_subdev *sd,
 
 	notifier->sd = sd;
 
-	ret = __v4l2_async_notifier_register(notifier);
+	ret = __v4l2_async_nf_register(notifier);
 	if (ret)
 		notifier->sd = NULL;
 
 	return ret;
 }
-EXPORT_SYMBOL(v4l2_async_subdev_notifier_register);
+EXPORT_SYMBOL(v4l2_async_subdev_nf_register);
 
 static void
-__v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+__v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)
 {
 	if (!notifier || (!notifier->v4l2_dev && !notifier->sd))
 		return;
 
-	v4l2_async_notifier_unbind_all_subdevs(notifier);
+	v4l2_async_nf_unbind_all_subdevs(notifier);
 
 	notifier->sd = NULL;
 	notifier->v4l2_dev = NULL;
@@ -570,17 +569,17 @@ __v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
 	list_del(&notifier->list);
 }
 
-void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)
 {
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_unregister(notifier);
+	__v4l2_async_nf_unregister(notifier);
 
 	mutex_unlock(&list_lock);
 }
-EXPORT_SYMBOL(v4l2_async_notifier_unregister);
+EXPORT_SYMBOL(v4l2_async_nf_unregister);
 
-static void __v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+static void __v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_async_subdev *asd, *tmp;
 
@@ -601,24 +600,24 @@ static void __v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
 	}
 }
 
-void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier)
 {
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_cleanup(notifier);
+	__v4l2_async_nf_cleanup(notifier);
 
 	mutex_unlock(&list_lock);
 }
-EXPORT_SYMBOL_GPL(v4l2_async_notifier_cleanup);
+EXPORT_SYMBOL_GPL(v4l2_async_nf_cleanup);
 
-int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
-				   struct v4l2_async_subdev *asd)
+int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd)
 {
 	int ret;
 
 	mutex_lock(&list_lock);
 
-	ret = v4l2_async_notifier_asd_valid(notifier, asd, -1);
+	ret = v4l2_async_nf_asd_valid(notifier, asd, -1);
 	if (ret)
 		goto unlock;
 
@@ -628,12 +627,12 @@ int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
 	mutex_unlock(&list_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_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)
+__v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier,
+			   struct fwnode_handle *fwnode,
+			   unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	int ret;
@@ -645,7 +644,7 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
 	asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
 	asd->match.fwnode = fwnode_handle_get(fwnode);
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret) {
 		fwnode_handle_put(fwnode);
 		kfree(asd);
@@ -654,12 +653,12 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
 
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_fwnode);
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif,
-					       struct fwnode_handle *endpoint,
-					       unsigned int asd_struct_size)
+__v4l2_async_nf_add_fwnode_remote(struct v4l2_async_notifier *notif,
+				  struct fwnode_handle *endpoint,
+				  unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	struct fwnode_handle *remote;
@@ -668,21 +667,20 @@ __v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif
 	if (!remote)
 		return ERR_PTR(-ENOTCONN);
 
-	asd = __v4l2_async_notifier_add_fwnode_subdev(notif, remote,
+	asd = __v4l2_async_nf_add_fwnode(notif, remote,
 						      asd_struct_size);
 	/*
-	 * Calling __v4l2_async_notifier_add_fwnode_subdev grabs a refcount,
+	 * Calling __v4l2_async_nf_add_fwnode grabs a refcount,
 	 * so drop the one we got in fwnode_graph_get_remote_port_parent.
 	 */
 	fwnode_handle_put(remote);
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_remote_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_fwnode_remote);
 
 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)
+__v4l2_async_nf_add_i2c(struct v4l2_async_notifier *notifier, int adapter_id,
+			unsigned short address, unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	int ret;
@@ -695,7 +693,7 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
 	asd->match.i2c.adapter_id = adapter_id;
 	asd->match.i2c.address = address;
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret) {
 		kfree(asd);
 		return ERR_PTR(ret);
@@ -703,7 +701,7 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
 
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_i2c_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_i2c);
 
 int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 {
@@ -725,7 +723,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 
 	list_for_each_entry(notifier, &notifier_list, list) {
 		struct v4l2_device *v4l2_dev =
-			v4l2_async_notifier_find_v4l2_dev(notifier);
+			v4l2_async_nf_find_v4l2_dev(notifier);
 		struct v4l2_async_subdev *asd;
 
 		if (!v4l2_dev)
@@ -739,7 +737,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 		if (ret)
 			goto err_unbind;
 
-		ret = v4l2_async_notifier_try_complete(notifier);
+		ret = v4l2_async_nf_try_complete(notifier);
 		if (ret)
 			goto err_unbind;
 
@@ -761,10 +759,10 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 	 */
 	subdev_notifier = v4l2_async_find_subdev_notifier(sd);
 	if (subdev_notifier)
-		v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+		v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
 
 	if (sd->asd)
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 	v4l2_async_cleanup(sd);
 
 	mutex_unlock(&list_lock);
@@ -780,8 +778,8 @@ void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
 
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_unregister(sd->subdev_notifier);
-	__v4l2_async_notifier_cleanup(sd->subdev_notifier);
+	__v4l2_async_nf_unregister(sd->subdev_notifier);
+	__v4l2_async_nf_cleanup(sd->subdev_notifier);
 	kfree(sd->subdev_notifier);
 	sd->subdev_notifier = NULL;
 
@@ -790,7 +788,7 @@ void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
 
 		list_add(&sd->asd->list, &notifier->waiting);
 
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 	}
 
 	v4l2_async_cleanup(sd);
@@ -825,7 +823,7 @@ static void print_waiting_subdev(struct seq_file *s,
 }
 
 static const char *
-v4l2_async_notifier_name(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_name(struct v4l2_async_notifier *notifier)
 {
 	if (notifier->v4l2_dev)
 		return notifier->v4l2_dev->name;
@@ -843,7 +841,7 @@ static int pending_subdevs_show(struct seq_file *s, void *data)
 	mutex_lock(&list_lock);
 
 	list_for_each_entry(notif, &notifier_list, list) {
-		seq_printf(s, "%s:\n", v4l2_async_notifier_name(notif));
+		seq_printf(s, "%s:\n", v4l2_async_nf_name(notif));
 		list_for_each_entry(asd, &notif->waiting, list)
 			print_waiting_subdev(s, asd);
 	}
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 843259c304bb..18a281a8196d 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -780,7 +780,7 @@ int v4l2_fwnode_device_parse(struct device *dev,
 EXPORT_SYMBOL_GPL(v4l2_fwnode_device_parse);
 
 static int
-v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
+v4l2_async_nf_fwnode_parse_endpoint(struct device *dev,
 					  struct v4l2_async_notifier *notifier,
 					  struct fwnode_handle *endpoint,
 					  unsigned int asd_struct_size,
@@ -822,7 +822,7 @@ v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
 	if (ret < 0)
 		goto out_err;
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret < 0) {
 		/* not an error if asd already exists */
 		if (ret == -EEXIST)
@@ -840,7 +840,7 @@ v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
 }
 
 static int
-__v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
+__v4l2_async_nf_parse_fwnode_ep(struct device *dev,
 				      struct v4l2_async_notifier *notifier,
 				      size_t asd_struct_size,
 				      unsigned int port,
@@ -874,7 +874,7 @@ __v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
 				continue;
 		}
 
-		ret = v4l2_async_notifier_fwnode_parse_endpoint(dev,
+		ret = v4l2_async_nf_fwnode_parse_endpoint(dev,
 								notifier,
 								fwnode,
 								asd_struct_size,
@@ -889,16 +889,16 @@ __v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
 }
 
 int
-v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
+v4l2_async_nf_parse_fwnode_endpoints(struct device *dev,
 					   struct v4l2_async_notifier *notifier,
 					   size_t asd_struct_size,
 					   parse_endpoint_func parse_endpoint)
 {
-	return __v4l2_async_notifier_parse_fwnode_ep(dev, notifier,
+	return __v4l2_async_nf_parse_fwnode_ep(dev, notifier,
 						     asd_struct_size, 0,
 						     false, parse_endpoint);
 }
-EXPORT_SYMBOL_GPL(v4l2_async_notifier_parse_fwnode_endpoints);
+EXPORT_SYMBOL_GPL(v4l2_async_nf_parse_fwnode_endpoints);
 
 /*
  * v4l2_fwnode_reference_parse - parse references for async sub-devices
@@ -942,7 +942,7 @@ static int v4l2_fwnode_reference_parse(struct device *dev,
 	     index++) {
 		struct v4l2_async_subdev *asd;
 
-		asd = v4l2_async_notifier_add_fwnode_subdev(notifier,
+		asd = v4l2_async_nf_add_fwnode(notifier,
 							    args.fwnode,
 							    struct v4l2_async_subdev);
 		fwnode_handle_put(args.fwnode);
@@ -1243,7 +1243,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
 	     index++) {
 		struct v4l2_async_subdev *asd;
 
-		asd = v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode,
+		asd = v4l2_async_nf_add_fwnode(notifier, fwnode,
 							    struct v4l2_async_subdev);
 		fwnode_handle_put(fwnode);
 		if (IS_ERR(asd)) {
@@ -1260,7 +1260,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
 }
 
 /**
- * v4l2_async_notifier_parse_fwnode_sensor - parse common references on
+ * v4l2_async_nf_parse_fwnode_sensor - parse common references on
  *					     sensors for async sub-devices
  * @dev: the device node the properties of which are parsed for references
  * @notifier: the async notifier where the async subdevs will be added
@@ -1269,7 +1269,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
  * sensor and set up async sub-devices for them.
  *
  * Any notifier populated using this function must be released with a call to
- * v4l2_async_notifier_release() after it has been unregistered and the async
+ * v4l2_async_nf_release() after it has been unregistered and the async
  * sub-devices are no longer in use, even in the case the function returned an
  * error.
  *
@@ -1278,7 +1278,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
  *	   -EINVAL if property parsing failed
  */
 static int
-v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
+v4l2_async_nf_parse_fwnode_sensor(struct device *dev,
 					struct v4l2_async_notifier *notifier)
 {
 	static const char * const led_props[] = { "led" };
@@ -1320,13 +1320,13 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
 	if (!notifier)
 		return -ENOMEM;
 
-	v4l2_async_notifier_init(notifier);
+	v4l2_async_nf_init(notifier);
 
-	ret = v4l2_async_notifier_parse_fwnode_sensor(sd->dev, notifier);
+	ret = v4l2_async_nf_parse_fwnode_sensor(sd->dev, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
-	ret = v4l2_async_subdev_notifier_register(sd, notifier);
+	ret = v4l2_async_subdev_nf_register(sd, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
@@ -1339,10 +1339,10 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
 	return 0;
 
 out_unregister:
-	v4l2_async_notifier_unregister(notifier);
+	v4l2_async_nf_unregister(notifier);
 
 out_cleanup:
-	v4l2_async_notifier_cleanup(notifier);
+	v4l2_async_nf_cleanup(notifier);
 	kfree(notifier);
 
 	return ret;
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index e3bfd635a89a..f51b02a9ed45 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -1908,7 +1908,7 @@ static int imx_csi_async_register(struct csi_priv *priv)
 	unsigned int port;
 	int ret;
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 
 	/* get this CSI's port id */
 	ret = fwnode_property_read_u32(dev_fwnode(priv->dev), "reg", &port);
@@ -1919,8 +1919,8 @@ static int imx_csi_async_register(struct csi_priv *priv)
 					     port, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
 	if (ep) {
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&priv->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&priv->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -1934,8 +1934,7 @@ static int imx_csi_async_register(struct csi_priv *priv)
 
 	priv->notifier.ops = &csi_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&priv->sd,
-						  &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->sd, &priv->notifier);
 	if (ret)
 		return ret;
 
@@ -2024,8 +2023,8 @@ static int imx_csi_probe(struct platform_device *pdev)
 	return 0;
 
 cleanup:
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 free:
 	v4l2_ctrl_handler_free(&priv->ctrl_hdlr);
 	mutex_destroy(&priv->lock);
@@ -2039,8 +2038,8 @@ static int imx_csi_remove(struct platform_device *pdev)
 
 	v4l2_ctrl_handler_free(&priv->ctrl_hdlr);
 	mutex_destroy(&priv->lock);
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 	v4l2_async_unregister_subdev(sd);
 	media_entity_cleanup(&sd->entity);
 
diff --git a/drivers/staging/media/imx/imx-media-dev-common.c b/drivers/staging/media/imx/imx-media-dev-common.c
index d186179388d0..d006e961d8f4 100644
--- a/drivers/staging/media/imx/imx-media-dev-common.c
+++ b/drivers/staging/media/imx/imx-media-dev-common.c
@@ -379,7 +379,7 @@ struct imx_media_dev *imx_media_dev_init(struct device *dev,
 
 	INIT_LIST_HEAD(&imxmd->vdev_list);
 
-	v4l2_async_notifier_init(&imxmd->notifier);
+	v4l2_async_nf_init(&imxmd->notifier);
 
 	return imxmd;
 
@@ -403,11 +403,10 @@ int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
 
 	/* prepare the async subdev notifier and register it */
 	imxmd->notifier.ops = ops ? ops : &imx_media_notifier_ops;
-	ret = v4l2_async_notifier_register(&imxmd->v4l2_dev,
-					   &imxmd->notifier);
+	ret = v4l2_async_nf_register(&imxmd->v4l2_dev, &imxmd->notifier);
 	if (ret) {
 		v4l2_err(&imxmd->v4l2_dev,
-			 "v4l2_async_notifier_register failed with %d\n", ret);
+			 "v4l2_async_nf_register failed with %d\n", ret);
 		return ret;
 	}
 
diff --git a/drivers/staging/media/imx/imx-media-dev.c b/drivers/staging/media/imx/imx-media-dev.c
index 338b8bd0bb07..f85462214e22 100644
--- a/drivers/staging/media/imx/imx-media-dev.c
+++ b/drivers/staging/media/imx/imx-media-dev.c
@@ -94,7 +94,7 @@ static int imx_media_probe(struct platform_device *pdev)
 	return 0;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
 
@@ -113,9 +113,9 @@ static int imx_media_remove(struct platform_device *pdev)
 		imxmd->m2m_vdev = NULL;
 	}
 
-	v4l2_async_notifier_unregister(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
 	imx_media_unregister_ipu_internal_subdevs(imxmd);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	media_device_unregister(&imxmd->md);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c
index b677cf0e0c84..59f1eb7b62bc 100644
--- a/drivers/staging/media/imx/imx-media-of.c
+++ b/drivers/staging/media/imx/imx-media-of.c
@@ -29,9 +29,9 @@ int imx_media_of_add_csi(struct imx_media_dev *imxmd,
 	}
 
 	/* add CSI fwnode to async notifier */
-	asd = v4l2_async_notifier_add_fwnode_subdev(&imxmd->notifier,
-						    of_fwnode_handle(csi_np),
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&imxmd->notifier,
+				       of_fwnode_handle(csi_np),
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		if (ret == -EEXIST)
diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c
index fc2378ac04b7..d55e8fdfc127 100644
--- a/drivers/staging/media/imx/imx6-mipi-csi2.c
+++ b/drivers/staging/media/imx/imx6-mipi-csi2.c
@@ -647,7 +647,7 @@ static int csi2_async_register(struct csi2_dev *csi2)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi2->notifier);
+	v4l2_async_nf_init(&csi2->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi2->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -663,8 +663,8 @@ static int csi2_async_register(struct csi2_dev *csi2)
 	dev_dbg(csi2->dev, "data lanes: %d\n", vep.bus.mipi_csi2.num_data_lanes);
 	dev_dbg(csi2->dev, "flags: 0x%08x\n", vep.bus.mipi_csi2.flags);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&csi2->notifier, ep, struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi2->notifier, ep,
+					      struct v4l2_async_subdev);
 	fwnode_handle_put(ep);
 
 	if (IS_ERR(asd))
@@ -672,8 +672,7 @@ static int csi2_async_register(struct csi2_dev *csi2)
 
 	csi2->notifier.ops = &csi2_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi2->sd,
-						  &csi2->notifier);
+	ret = v4l2_async_subdev_nf_register(&csi2->sd, &csi2->notifier);
 	if (ret)
 		return ret;
 
@@ -768,8 +767,8 @@ static int csi2_probe(struct platform_device *pdev)
 	return 0;
 
 clean_notifier:
-	v4l2_async_notifier_unregister(&csi2->notifier);
-	v4l2_async_notifier_cleanup(&csi2->notifier);
+	v4l2_async_nf_unregister(&csi2->notifier);
+	v4l2_async_nf_cleanup(&csi2->notifier);
 	clk_disable_unprepare(csi2->dphy_clk);
 pllref_off:
 	clk_disable_unprepare(csi2->pllref_clk);
@@ -783,8 +782,8 @@ static int csi2_remove(struct platform_device *pdev)
 	struct v4l2_subdev *sd = platform_get_drvdata(pdev);
 	struct csi2_dev *csi2 = sd_to_dev(sd);
 
-	v4l2_async_notifier_unregister(&csi2->notifier);
-	v4l2_async_notifier_cleanup(&csi2->notifier);
+	v4l2_async_nf_unregister(&csi2->notifier);
+	v4l2_async_nf_cleanup(&csi2->notifier);
 	v4l2_async_unregister_subdev(sd);
 	clk_disable_unprepare(csi2->dphy_clk);
 	clk_disable_unprepare(csi2->pllref_clk);
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index f85a2f5f1413..558544d4ffe0 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -1104,13 +1104,13 @@ static int imx7_csi_async_register(struct imx7_csi *csi)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
 	if (ep) {
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&csi->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -1124,7 +1124,7 @@ static int imx7_csi_async_register(struct imx7_csi *csi)
 
 	csi->notifier.ops = &imx7_csi_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi->sd, &csi->notifier);
+	ret = v4l2_async_subdev_nf_register(&csi->sd, &csi->notifier);
 	if (ret)
 		return ret;
 
@@ -1215,12 +1215,12 @@ static int imx7_csi_probe(struct platform_device *pdev)
 	return 0;
 
 subdev_notifier_cleanup:
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 
 cleanup:
-	v4l2_async_notifier_unregister(&imxmd->notifier);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_unregister(&imxmd->md);
 	media_device_cleanup(&imxmd->md);
@@ -1237,15 +1237,15 @@ static int imx7_csi_remove(struct platform_device *pdev)
 	struct imx7_csi *csi = v4l2_get_subdevdata(sd);
 	struct imx_media_dev *imxmd = csi->imxmd;
 
-	v4l2_async_notifier_unregister(&imxmd->notifier);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 
 	media_device_unregister(&imxmd->md);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
 
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	v4l2_async_unregister_subdev(sd);
 
 	mutex_destroy(&csi->lock);
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index bd587e550d99..6e28a79d8b38 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -1083,7 +1083,7 @@ static int mipi_csis_async_register(struct csi_state *state)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&state->notifier);
+	v4l2_async_nf_init(&state->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(state->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -1099,8 +1099,8 @@ static int mipi_csis_async_register(struct csi_state *state)
 	dev_dbg(state->dev, "data lanes: %d\n", state->bus.num_data_lanes);
 	dev_dbg(state->dev, "flags: 0x%08x\n", state->bus.flags);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&state->notifier, ep, struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&state->notifier, ep,
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto err_parse;
@@ -1110,8 +1110,7 @@ static int mipi_csis_async_register(struct csi_state *state)
 
 	state->notifier.ops = &mipi_csis_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&state->mipi_sd,
-						  &state->notifier);
+	ret = v4l2_async_subdev_nf_register(&state->mipi_sd, &state->notifier);
 	if (ret)
 		return ret;
 
@@ -1231,8 +1230,8 @@ static int mipi_csis_probe(struct platform_device *pdev)
 	mipi_csis_debugfs_exit(state);
 cleanup:
 	media_entity_cleanup(&state->mipi_sd.entity);
-	v4l2_async_notifier_unregister(&state->notifier);
-	v4l2_async_notifier_cleanup(&state->notifier);
+	v4l2_async_nf_unregister(&state->notifier);
+	v4l2_async_nf_cleanup(&state->notifier);
 	v4l2_async_unregister_subdev(&state->mipi_sd);
 disable_clock:
 	mipi_csis_clk_disable(state);
@@ -1320,8 +1319,8 @@ static int mipi_csis_remove(struct platform_device *pdev)
 	struct csi_state *state = mipi_sd_to_csis_state(mipi_sd);
 
 	mipi_csis_debugfs_exit(state);
-	v4l2_async_notifier_unregister(&state->notifier);
-	v4l2_async_notifier_cleanup(&state->notifier);
+	v4l2_async_nf_unregister(&state->notifier);
+	v4l2_async_nf_cleanup(&state->notifier);
 	v4l2_async_unregister_subdev(&state->mipi_sd);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 7a09061cda57..655e27a242a2 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -1273,7 +1273,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
 	}
 
 	if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
-		v4l2_async_notifier_init(&chan->notifier);
+		v4l2_async_nf_init(&chan->notifier);
 
 	return 0;
 
@@ -1812,8 +1812,8 @@ static int tegra_vi_graph_parse_one(struct tegra_vi_channel *chan,
 			continue;
 		}
 
-		tvge = v4l2_async_notifier_add_fwnode_subdev(&chan->notifier,
-				remote, struct tegra_vi_graph_entity);
+		tvge = v4l2_async_nf_add_fwnode(&chan->notifier, remote,
+						struct tegra_vi_graph_entity);
 		if (IS_ERR(tvge)) {
 			ret = PTR_ERR(tvge);
 			dev_err(vi->dev,
@@ -1835,7 +1835,7 @@ static int tegra_vi_graph_parse_one(struct tegra_vi_channel *chan,
 
 cleanup:
 	dev_err(vi->dev, "failed parsing the graph: %d\n", ret);
-	v4l2_async_notifier_cleanup(&chan->notifier);
+	v4l2_async_nf_cleanup(&chan->notifier);
 	of_node_put(node);
 	return ret;
 }
@@ -1869,13 +1869,12 @@ static int tegra_vi_graph_init(struct tegra_vi *vi)
 			continue;
 
 		chan->notifier.ops = &tegra_vi_async_ops;
-		ret = v4l2_async_notifier_register(&vid->v4l2_dev,
-						   &chan->notifier);
+		ret = v4l2_async_nf_register(&vid->v4l2_dev, &chan->notifier);
 		if (ret < 0) {
 			dev_err(vi->dev,
 				"failed to register channel %d notifier: %d\n",
 				chan->portnos[0], ret);
-			v4l2_async_notifier_cleanup(&chan->notifier);
+			v4l2_async_nf_cleanup(&chan->notifier);
 		}
 	}
 
@@ -1888,8 +1887,8 @@ static void tegra_vi_graph_cleanup(struct tegra_vi *vi)
 
 	list_for_each_entry(chan, &vi->vi_chans, list) {
 		vb2_video_unregister_device(&chan->video);
-		v4l2_async_notifier_unregister(&chan->notifier);
-		v4l2_async_notifier_cleanup(&chan->notifier);
+		v4l2_async_nf_unregister(&chan->notifier);
+		v4l2_async_nf_cleanup(&chan->notifier);
 	}
 }
 
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index fa4901162663..7f9926ed1b35 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -123,45 +123,45 @@ struct v4l2_async_notifier {
 void v4l2_async_debug_init(struct dentry *debugfs_dir);
 
 /**
- * v4l2_async_notifier_init - Initialize a notifier.
+ * v4l2_async_nf_init - Initialize a notifier.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  *
  * This function initializes the notifier @asd_list. It must be called
  * before adding a subdevice to a notifier, using one of:
- * v4l2_async_notifier_add_fwnode_remote_subdev(),
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_i2c_subdev(),
- * __v4l2_async_notifier_add_subdev() or
- * v4l2_async_notifier_parse_fwnode_endpoints().
+ * v4l2_async_nf_add_fwnode_remote(),
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_i2c(),
+ * __v4l2_async_nf_add_subdev() or
+ * v4l2_async_nf_parse_fwnode_endpoints().
  */
-void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_init(struct v4l2_async_notifier *notifier);
 
 /**
- * __v4l2_async_notifier_add_subdev - Add an async subdev to the
+ * __v4l2_async_nf_add_subdev - Add an async subdev to the
  *				notifier's master asd list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  * @asd: pointer to &struct v4l2_async_subdev
  *
  * \warning: Drivers should avoid using this function and instead use one of:
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_fwnode_remote_subdev() or
- * v4l2_async_notifier_add_i2c_subdev().
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_fwnode_remote() or
+ * v4l2_async_nf_add_i2c().
  *
  * Call this function before registering a notifier to link the provided @asd to
  * the notifiers master @asd_list. The @asd must be allocated with k*alloc() as
  * it will be freed by the framework when the notifier is destroyed.
  */
-int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
-				   struct v4l2_async_subdev *asd);
+int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd);
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
-					struct fwnode_handle *fwnode,
-					unsigned int asd_struct_size);
+__v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier,
+			   struct fwnode_handle *fwnode,
+			   unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_fwnode_subdev - Allocate and add a fwnode async
+ * v4l2_async_nf_add_fwnode - Allocate and add a fwnode async
  *				subdev to the notifier's master asd_list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
@@ -175,16 +175,15 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
  * notifiers @asd_list. The function also gets a reference of the fwnode which
  * is released later at notifier cleanup time.
  */
-#define v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode, type)	\
-	((type *)__v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode, \
-							   sizeof(type)))
+#define v4l2_async_nf_add_fwnode(notifier, fwnode, type)		\
+	((type *)__v4l2_async_nf_add_fwnode(notifier, fwnode, sizeof(type)))
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif,
-					       struct fwnode_handle *endpoint,
-					       unsigned int asd_struct_size);
+__v4l2_async_nf_add_fwnode_remote(struct v4l2_async_notifier *notif,
+				  struct fwnode_handle *endpoint,
+				  unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_fwnode_remote_subdev - Allocate and add a fwnode
+ * v4l2_async_nf_add_fwnode_remote - Allocate and add a fwnode
  *						  remote async subdev to the
  *						  notifier's master asd_list.
  *
@@ -200,20 +199,18 @@ __v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif
  * function also gets a reference of the fwnode which is released later at
  * notifier cleanup time.
  *
- * This is just like v4l2_async_notifier_add_fwnode_subdev(), but with the
+ * This is just like v4l2_async_nf_add_fwnode(), but with the
  * exception that the fwnode refers to a local endpoint, not the remote one.
  */
-#define v4l2_async_notifier_add_fwnode_remote_subdev(notifier, ep, type) \
-	((type *)							\
-	 __v4l2_async_notifier_add_fwnode_remote_subdev(notifier, ep,	\
-							sizeof(type)))
+#define v4l2_async_nf_add_fwnode_remote(notifier, ep, type) \
+	((type *)__v4l2_async_nf_add_fwnode_remote(notifier, ep, sizeof(type)))
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
+__v4l2_async_nf_add_i2c(struct v4l2_async_notifier *notifier,
 				     int adapter_id, unsigned short address,
 				     unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_i2c_subdev - Allocate and add an i2c async
+ * v4l2_async_nf_add_i2c - Allocate and add an i2c async
  *				subdev to the notifier's master asd_list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
@@ -223,59 +220,59 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
  *	  v4l2_async_subdev shall be the first member of the driver's async
  *	  sub-device struct, i.e. both begin at the same memory address.
  *
- * Same as v4l2_async_notifier_add_fwnode_subdev() but for I2C matched
+ * Same as v4l2_async_nf_add_fwnode() but for I2C matched
  * sub-devices.
  */
-#define v4l2_async_notifier_add_i2c_subdev(notifier, adapter, address, type) \
-	((type *)__v4l2_async_notifier_add_i2c_subdev(notifier, adapter, \
-						      address, sizeof(type)))
+#define v4l2_async_nf_add_i2c(notifier, adapter, address, type) \
+	((type *)__v4l2_async_nf_add_i2c(notifier, adapter, address, \
+					 sizeof(type)))
 
 /**
- * v4l2_async_notifier_register - registers a subdevice asynchronous notifier
+ * 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_notifier_register(struct v4l2_device *v4l2_dev,
-				 struct v4l2_async_notifier *notifier);
+int v4l2_async_nf_register(struct v4l2_device *v4l2_dev,
+			   struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_subdev_notifier_register - registers a subdevice asynchronous
+ * 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_notifier_register(struct v4l2_subdev *sd,
-					struct v4l2_async_notifier *notifier);
+int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd,
+				  struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_notifier_unregister - unregisters a subdevice
+ * v4l2_async_nf_unregister - unregisters a subdevice
  *	asynchronous notifier
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  */
-void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_notifier_cleanup - clean up notifier resources
+ * v4l2_async_nf_cleanup - clean up notifier resources
  * @notifier: the notifier the resources of which are to be cleaned up
  *
  * Release memory resources related to a notifier, including the async
  * sub-devices allocated for the purposes of the notifier but not the notifier
  * itself. The user is responsible for calling this function to clean up the
  * notifier after calling
- * v4l2_async_notifier_add_fwnode_remote_subdev(),
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_i2c_subdev(),
- * __v4l2_async_notifier_add_subdev() or
- * v4l2_async_notifier_parse_fwnode_endpoints().
+ * v4l2_async_nf_add_fwnode_remote(),
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_i2c(),
+ * __v4l2_async_nf_add_subdev() or
+ * v4l2_async_nf_parse_fwnode_endpoints().
  *
- * There is no harm from calling v4l2_async_notifier_cleanup() in other
+ * There is no harm from calling v4l2_async_nf_cleanup() in other
  * cases as long as its memory has been zeroed after it has been
  * allocated.
  */
-void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier);
 
 /**
  * v4l2_async_register_subdev - registers a sub-device to the asynchronous
@@ -295,7 +292,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
  *
  * This function is just like v4l2_async_register_subdev() with the exception
  * that calling it will also parse firmware interfaces for remote references
- * using v4l2_async_notifier_parse_fwnode_sensor() and registers the
+ * using v4l2_async_nf_parse_fwnode_sensor() and registers the
  * async sub-devices. The sub-device is similarly unregistered by calling
  * v4l2_async_unregister_subdev().
  *
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index 7ab033b819eb..1bf9af4b9f43 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -463,7 +463,7 @@ typedef int (*parse_endpoint_func)(struct device *dev,
 				  struct v4l2_async_subdev *asd);
 
 /**
- * v4l2_async_notifier_parse_fwnode_endpoints - Parse V4L2 fwnode endpoints in a
+ * v4l2_async_nf_parse_fwnode_endpoints - Parse V4L2 fwnode endpoints in a
  *						device node
  * @dev: the device the endpoints of which are to be parsed
  * @notifier: notifier for @dev
@@ -496,7 +496,7 @@ typedef int (*parse_endpoint_func)(struct device *dev,
  * to retain that configuration, the user needs to allocate memory for it.
  *
  * Any notifier populated using this function must be released with a call to
- * v4l2_async_notifier_cleanup() after it has been unregistered and the async
+ * v4l2_async_nf_cleanup() after it has been unregistered and the async
  * sub-devices are no longer in use, even if the function returned an error.
  *
  * Return: %0 on success, including when no async sub-devices are found
@@ -505,7 +505,7 @@ typedef int (*parse_endpoint_func)(struct device *dev,
  *	   Other error codes as returned by @parse_endpoint
  */
 int
-v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
+v4l2_async_nf_parse_fwnode_endpoints(struct device *dev,
 					   struct v4l2_async_notifier *notifier,
 					   size_t asd_struct_size,
 					   parse_endpoint_func parse_endpoint);
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 14+ messages in thread

* [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-12 12:56 [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little Sakari Ailus
                   ` (2 preceding siblings ...)
  2021-03-12 12:56 ` [PATCH v2 3/4] v4l: async: Wrap long lines, remove '(' at the end of lines Sakari Ailus
@ 2021-03-12 12:56 ` Sakari Ailus
  2021-03-12 15:02   ` Niklas Söderlund
  2021-03-23 17:46   ` Ezequiel Garcia
  3 siblings, 2 replies; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 12:56 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

The V4L2 async framework is generally used with the V4L2 fwnode, which
also depends on the former. There is only one exception, the CAFE_CCIC
driver, which uses V4L2 async but does not need V4L2 fwnode.

At the same time there is a vast number of systems that need videodev
module, but have no use for v4l2-async that's now part of videodev.

In order to improve, build v4l2-async and v4l2-fwnode as a single module
called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.

This also moves the initialisation of the debufs entries for async subdevs
to loading of the v4l2-async module. The directory is named as
"v4l2-async".

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/i2c/Kconfig            |  8 ++++++++
 drivers/media/v4l2-core/Kconfig      |  4 ++++
 drivers/media/v4l2-core/Makefile     | 11 +++++++++--
 drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
 drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
 5 files changed, 42 insertions(+), 9 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 462c0e059754..4326e50c13c9 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -217,6 +217,7 @@ config VIDEO_ADV7180
 	depends on GPIOLIB && VIDEO_V4L2 && I2C
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
+	select V4L2_ASYNC
 	help
 	  Support for the Analog Devices ADV7180 video decoder.
 
@@ -1341,6 +1342,7 @@ config VIDEO_AD5820
 	tristate "AD5820 lens voice coil support"
 	depends on GPIOLIB && I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
+	select V4L2_ASYNC
 	help
 	  This is a driver for the AD5820 camera lens voice coil.
 	  It is used for example in Nokia N900 (RX-51).
@@ -1350,6 +1352,7 @@ config VIDEO_AK7375
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
+	select V4L2_ASYNC
 	help
 	  This is a driver for the AK7375 camera lens voice coil.
 	  AK7375 is a 12 bit DAC with 120mA output current sink
@@ -1361,6 +1364,7 @@ config VIDEO_DW9714
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
+	select V4L2_ASYNC
 	help
 	  This is a driver for the DW9714 camera lens voice coil.
 	  DW9714 is a 10 bit DAC with 120mA output current sink
@@ -1384,6 +1388,7 @@ config VIDEO_DW9807_VCM
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
+	select V4L2_ASYNC
 	help
 	  This is a driver for the DW9807 camera lens voice coil.
 	  DW9807 is a 10 bit DAC with 100mA output current sink
@@ -1399,6 +1404,7 @@ config VIDEO_ADP1653
 	tristate "ADP1653 flash support"
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
+	select V4L2_ASYNC
 	help
 	  This is a driver for the ADP1653 flash controller. It is used for
 	  example in Nokia N900.
@@ -1408,6 +1414,7 @@ config VIDEO_LM3560
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
 	select REGMAP_I2C
+	select V4L2_ASYNC
 	help
 	  This is a driver for the lm3560 dual flash controllers. It controls
 	  flash, torch LEDs.
@@ -1417,6 +1424,7 @@ config VIDEO_LM3646
 	depends on I2C && VIDEO_V4L2
 	select MEDIA_CONTROLLER
 	select REGMAP_I2C
+	select V4L2_ASYNC
 	help
 	  This is a driver for the lm3646 dual flash controllers. It controls
 	  flash, torch LEDs.
diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig
index bf49f83cb86f..61b023b56d75 100644
--- a/drivers/media/v4l2-core/Kconfig
+++ b/drivers/media/v4l2-core/Kconfig
@@ -62,6 +62,7 @@ config V4L2_FLASH_LED_CLASS
 	tristate "V4L2 flash API for LED flash class devices"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on LEDS_CLASS_FLASH
+	select V4L2_ASYNC
 	help
 	  Say Y here to enable V4L2 flash API support for LED flash
 	  class drivers.
@@ -71,6 +72,9 @@ config V4L2_FLASH_LED_CLASS
 config V4L2_FWNODE
 	tristate
 
+config V4L2_ASYNC
+	tristate
+
 # Used by drivers that need Videobuf modules
 config VIDEOBUF_GEN
 	tristate
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index e4cd589b99a5..eb5ebb5461fd 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -7,15 +7,22 @@ tuner-objs	:=	tuner-core.o
 
 videodev-objs	:=	v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
 			v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
-			v4l2-async.o v4l2-common.o
+			v4l2-common.o
 videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
 videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
 videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
 videodev-$(CONFIG_SPI) += v4l2-spi.o
 videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
 
-obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
 obj-$(CONFIG_VIDEO_V4L2) += videodev.o
+ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
+obj-y += v4l2-async.o
+else
+ifneq ($(findstring m,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
+obj-m += v4l2-async.o
+endif
+endif
+obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
 obj-$(CONFIG_VIDEO_V4L2) += v4l2-dv-timings.o
 
 obj-$(CONFIG_VIDEO_TUNER) += tuner.o
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 21b3890b96fc..6e49386f0284 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -852,8 +852,27 @@ static int pending_subdevs_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(pending_subdevs);
 
-void v4l2_async_debug_init(struct dentry *debugfs_dir)
+static struct dentry *v4l2_async_debugfs_dir;
+
+static int __init v4l2_async_init(void)
 {
-	debugfs_create_file("pending_async_subdevices", 0444, debugfs_dir, NULL,
+	v4l2_async_debugfs_dir = debugfs_create_dir("v4l2-async", NULL);
+	debugfs_create_file("pending_async_subdevices", 0444,
+			    v4l2_async_debugfs_dir, NULL,
 			    &pending_subdevs_fops);
+
+	return 0;
+}
+
+static void __exit v4l2_async_exit(void)
+{
+	debugfs_remove_recursive(v4l2_async_debugfs_dir);
 }
+
+subsys_initcall(v4l2_async_init);
+module_exit(v4l2_async_exit);
+
+MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>");
+MODULE_AUTHOR("Ezequiel Garcia <ezequiel@collabora.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index b6a72d297775..5002e3cd110f 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -39,8 +39,6 @@
 		       __func__, ##arg);				\
 } while (0)
 
-static struct dentry *v4l2_debugfs_dir;
-
 /*
  *	sysfs stuff
  */
@@ -1120,8 +1118,6 @@ static int __init videodev_init(void)
 		return -EIO;
 	}
 
-	v4l2_debugfs_dir = debugfs_create_dir("video4linux", NULL);
-	v4l2_async_debug_init(v4l2_debugfs_dir);
 	return 0;
 }
 
@@ -1129,7 +1125,6 @@ static void __exit videodev_exit(void)
 {
 	dev_t dev = MKDEV(VIDEO_MAJOR, 0);
 
-	debugfs_remove_recursive(v4l2_debugfs_dir);
 	class_unregister(&video_class);
 	unregister_chrdev_region(dev, VIDEO_NUM_DEVICES);
 }
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-12 12:56 ` [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation Sakari Ailus
@ 2021-03-12 15:02   ` Niklas Söderlund
  2021-03-12 15:31     ` Sakari Ailus
  2021-03-23 17:46   ` Ezequiel Garcia
  1 sibling, 1 reply; 14+ messages in thread
From: Niklas Söderlund @ 2021-03-12 15:02 UTC (permalink / raw)
  To: Sakari Ailus; +Cc: linux-media, ezequiel.garcia

Hi Sakari,

Thanks for your work.

On 2021-03-12 14:56:57 +0200, Sakari Ailus wrote:
> The V4L2 async framework is generally used with the V4L2 fwnode, which
> also depends on the former. There is only one exception, the CAFE_CCIC
> driver, which uses V4L2 async but does not need V4L2 fwnode.
> 
> At the same time there is a vast number of systems that need videodev
> module, but have no use for v4l2-async that's now part of videodev.
> 
> In order to improve, build v4l2-async and v4l2-fwnode as a single module
> called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> 
> This also moves the initialisation of the debufs entries for async subdevs
> to loading of the v4l2-async module. The directory is named as
> "v4l2-async".

I tested this patch as part of your latest master branch [1] and it 
fails to compile for me,

      AR      drivers/base/built-in.a
    drivers/media/v4l2-core/Makefile:18: *** missing separator.  Stop.
    make[2]: *** [scripts/Makefile.build:514: drivers/media/v4l2-core] Error 2
    make[1]: *** [scripts/Makefile.build:514: drivers/media] Error 2
    make: *** [Makefile:1849: drivers] Error 2

1. git://linuxtv.org/sailus/media_tree.git master
   e61c166cc1088746 ("v4l: async, fwnode: Improve module organisation")

> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
>  drivers/media/i2c/Kconfig            |  8 ++++++++
>  drivers/media/v4l2-core/Kconfig      |  4 ++++
>  drivers/media/v4l2-core/Makefile     | 11 +++++++++--
>  drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
>  drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
>  5 files changed, 42 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 462c0e059754..4326e50c13c9 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -217,6 +217,7 @@ config VIDEO_ADV7180
>  	depends on GPIOLIB && VIDEO_V4L2 && I2C
>  	select MEDIA_CONTROLLER
>  	select VIDEO_V4L2_SUBDEV_API
> +	select V4L2_ASYNC
>  	help
>  	  Support for the Analog Devices ADV7180 video decoder.
>  
> @@ -1341,6 +1342,7 @@ config VIDEO_AD5820
>  	tristate "AD5820 lens voice coil support"
>  	depends on GPIOLIB && I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the AD5820 camera lens voice coil.
>  	  It is used for example in Nokia N900 (RX-51).
> @@ -1350,6 +1352,7 @@ config VIDEO_AK7375
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select VIDEO_V4L2_SUBDEV_API
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the AK7375 camera lens voice coil.
>  	  AK7375 is a 12 bit DAC with 120mA output current sink
> @@ -1361,6 +1364,7 @@ config VIDEO_DW9714
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select VIDEO_V4L2_SUBDEV_API
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the DW9714 camera lens voice coil.
>  	  DW9714 is a 10 bit DAC with 120mA output current sink
> @@ -1384,6 +1388,7 @@ config VIDEO_DW9807_VCM
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select VIDEO_V4L2_SUBDEV_API
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the DW9807 camera lens voice coil.
>  	  DW9807 is a 10 bit DAC with 100mA output current sink
> @@ -1399,6 +1404,7 @@ config VIDEO_ADP1653
>  	tristate "ADP1653 flash support"
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the ADP1653 flash controller. It is used for
>  	  example in Nokia N900.
> @@ -1408,6 +1414,7 @@ config VIDEO_LM3560
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select REGMAP_I2C
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the lm3560 dual flash controllers. It controls
>  	  flash, torch LEDs.
> @@ -1417,6 +1424,7 @@ config VIDEO_LM3646
>  	depends on I2C && VIDEO_V4L2
>  	select MEDIA_CONTROLLER
>  	select REGMAP_I2C
> +	select V4L2_ASYNC
>  	help
>  	  This is a driver for the lm3646 dual flash controllers. It controls
>  	  flash, torch LEDs.
> diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig
> index bf49f83cb86f..61b023b56d75 100644
> --- a/drivers/media/v4l2-core/Kconfig
> +++ b/drivers/media/v4l2-core/Kconfig
> @@ -62,6 +62,7 @@ config V4L2_FLASH_LED_CLASS
>  	tristate "V4L2 flash API for LED flash class devices"
>  	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
>  	depends on LEDS_CLASS_FLASH
> +	select V4L2_ASYNC
>  	help
>  	  Say Y here to enable V4L2 flash API support for LED flash
>  	  class drivers.
> @@ -71,6 +72,9 @@ config V4L2_FLASH_LED_CLASS
>  config V4L2_FWNODE
>  	tristate
>  
> +config V4L2_ASYNC
> +	tristate
> +
>  # Used by drivers that need Videobuf modules
>  config VIDEOBUF_GEN
>  	tristate
> diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
> index e4cd589b99a5..eb5ebb5461fd 100644
> --- a/drivers/media/v4l2-core/Makefile
> +++ b/drivers/media/v4l2-core/Makefile
> @@ -7,15 +7,22 @@ tuner-objs	:=	tuner-core.o
>  
>  videodev-objs	:=	v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
>  			v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
> -			v4l2-async.o v4l2-common.o
> +			v4l2-common.o
>  videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
>  videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
>  videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
>  videodev-$(CONFIG_SPI) += v4l2-spi.o
>  videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
>  
> -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
>  obj-$(CONFIG_VIDEO_V4L2) += videodev.o
> +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
> +obj-y += v4l2-async.o
> +else
> +ifneq ($(findstring m,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
> +obj-m += v4l2-async.o
> +endif
> +endif
> +obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
>  obj-$(CONFIG_VIDEO_V4L2) += v4l2-dv-timings.o
>  
>  obj-$(CONFIG_VIDEO_TUNER) += tuner.o
> diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
> index 21b3890b96fc..6e49386f0284 100644
> --- a/drivers/media/v4l2-core/v4l2-async.c
> +++ b/drivers/media/v4l2-core/v4l2-async.c
> @@ -852,8 +852,27 @@ static int pending_subdevs_show(struct seq_file *s, void *data)
>  }
>  DEFINE_SHOW_ATTRIBUTE(pending_subdevs);
>  
> -void v4l2_async_debug_init(struct dentry *debugfs_dir)
> +static struct dentry *v4l2_async_debugfs_dir;
> +
> +static int __init v4l2_async_init(void)
>  {
> -	debugfs_create_file("pending_async_subdevices", 0444, debugfs_dir, NULL,
> +	v4l2_async_debugfs_dir = debugfs_create_dir("v4l2-async", NULL);
> +	debugfs_create_file("pending_async_subdevices", 0444,
> +			    v4l2_async_debugfs_dir, NULL,
>  			    &pending_subdevs_fops);
> +
> +	return 0;
> +}
> +
> +static void __exit v4l2_async_exit(void)
> +{
> +	debugfs_remove_recursive(v4l2_async_debugfs_dir);
>  }
> +
> +subsys_initcall(v4l2_async_init);
> +module_exit(v4l2_async_exit);
> +
> +MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
> +MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>");
> +MODULE_AUTHOR("Ezequiel Garcia <ezequiel@collabora.com>");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
> index b6a72d297775..5002e3cd110f 100644
> --- a/drivers/media/v4l2-core/v4l2-dev.c
> +++ b/drivers/media/v4l2-core/v4l2-dev.c
> @@ -39,8 +39,6 @@
>  		       __func__, ##arg);				\
>  } while (0)
>  
> -static struct dentry *v4l2_debugfs_dir;
> -
>  /*
>   *	sysfs stuff
>   */
> @@ -1120,8 +1118,6 @@ static int __init videodev_init(void)
>  		return -EIO;
>  	}
>  
> -	v4l2_debugfs_dir = debugfs_create_dir("video4linux", NULL);
> -	v4l2_async_debug_init(v4l2_debugfs_dir);
>  	return 0;
>  }
>  
> @@ -1129,7 +1125,6 @@ static void __exit videodev_exit(void)
>  {
>  	dev_t dev = MKDEV(VIDEO_MAJOR, 0);
>  
> -	debugfs_remove_recursive(v4l2_debugfs_dir);
>  	class_unregister(&video_class);
>  	unregister_chrdev_region(dev, VIDEO_NUM_DEVICES);
>  }
> -- 
> 2.29.2
> 

-- 
Regards,
Niklas Söderlund

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-12 15:02   ` Niklas Söderlund
@ 2021-03-12 15:31     ` Sakari Ailus
  0 siblings, 0 replies; 14+ messages in thread
From: Sakari Ailus @ 2021-03-12 15:31 UTC (permalink / raw)
  To: Niklas Söderlund; +Cc: linux-media, ezequiel.garcia

On Fri, Mar 12, 2021 at 04:02:08PM +0100, Niklas Söderlund wrote:
> Hi Sakari,
> 
> Thanks for your work.
> 
> On 2021-03-12 14:56:57 +0200, Sakari Ailus wrote:
> > The V4L2 async framework is generally used with the V4L2 fwnode, which
> > also depends on the former. There is only one exception, the CAFE_CCIC
> > driver, which uses V4L2 async but does not need V4L2 fwnode.
> > 
> > At the same time there is a vast number of systems that need videodev
> > module, but have no use for v4l2-async that's now part of videodev.
> > 
> > In order to improve, build v4l2-async and v4l2-fwnode as a single module
> > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> > 
> > This also moves the initialisation of the debufs entries for async subdevs
> > to loading of the v4l2-async module. The directory is named as
> > "v4l2-async".
> 
> I tested this patch as part of your latest master branch [1] and it 
> fails to compile for me,

Yeah, sorry; I pushed an intermediate version there, the fixed one is on
the list (and now-updated master branch).

-- 
Sakari Ailus

^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH v2.1 1/1] v4l: async: Wrap long lines, remove '(' at the end of lines
  2021-03-12 12:56 ` [PATCH v2 3/4] v4l: async: Wrap long lines, remove '(' at the end of lines Sakari Ailus
@ 2021-03-22 11:19   ` Sakari Ailus
  0 siblings, 0 replies; 14+ messages in thread
From: Sakari Ailus @ 2021-03-22 11:19 UTC (permalink / raw)
  To: linux-media; +Cc: ezequiel.garcia

Rename V4L2 async notifier functions, replacing "notifier" with "nf" and
removing "_subdev" at the end of the function names adding subdevs as you
can only add subdevs to a notifier.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
since v2:

- Realign lines to right of opening parentheses.

 .../driver-api/media/v4l2-subdev.rst          |  14 +-
 drivers/media/i2c/max9286.c                   |  17 +-
 drivers/media/i2c/st-mipid02.c                |  22 ++-
 drivers/media/pci/intel/ipu3/ipu3-cio2-main.c |  17 +-
 drivers/media/platform/am437x/am437x-vpfe.c   |  19 +-
 drivers/media/platform/atmel/atmel-isc-base.c |   4 +-
 drivers/media/platform/atmel/atmel-isi.c      |  17 +-
 .../media/platform/atmel/atmel-sama5d2-isc.c  |  15 +-
 drivers/media/platform/cadence/cdns-csi2rx.c  |  14 +-
 drivers/media/platform/davinci/vpif_capture.c |  21 +--
 drivers/media/platform/exynos4-is/media-dev.c |  20 +--
 .../media/platform/marvell-ccic/cafe-driver.c |   9 +-
 .../media/platform/marvell-ccic/mcam-core.c   |  10 +-
 .../media/platform/marvell-ccic/mmp-driver.c  |   6 +-
 drivers/media/platform/omap3isp/isp.c         |  21 ++-
 drivers/media/platform/pxa_camera.c           |  26 ++-
 drivers/media/platform/qcom/camss/camss.c     |  18 +-
 drivers/media/platform/rcar-vin/rcar-core.c   |  34 ++--
 drivers/media/platform/rcar-vin/rcar-csi2.c   |  19 +-
 drivers/media/platform/rcar_drif.c            |  14 +-
 drivers/media/platform/renesas-ceu.c          |  29 ++-
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  17 +-
 drivers/media/platform/stm32/stm32-dcmi.c     |  18 +-
 .../platform/sunxi/sun4i-csi/sun4i_csi.c      |  12 +-
 .../platform/sunxi/sun6i-csi/sun6i_csi.c      |  19 +-
 drivers/media/platform/ti-vpe/cal.c           |  16 +-
 drivers/media/platform/video-mux.c            |  17 +-
 drivers/media/platform/xilinx/xilinx-vipp.c   |  17 +-
 drivers/media/v4l2-core/v4l2-async.c          | 168 +++++++++---------
 drivers/media/v4l2-core/v4l2-fwnode.c         |  74 ++++----
 drivers/staging/media/imx/imx-media-csi.c     |  17 +-
 .../staging/media/imx/imx-media-dev-common.c  |   7 +-
 drivers/staging/media/imx/imx-media-dev.c     |   6 +-
 drivers/staging/media/imx/imx-media-of.c      |   6 +-
 drivers/staging/media/imx/imx6-mipi-csi2.c    |  17 +-
 drivers/staging/media/imx/imx7-media-csi.c    |  24 +--
 drivers/staging/media/imx/imx7-mipi-csis.c    |  17 +-
 drivers/staging/media/tegra-video/vi.c        |  17 +-
 include/media/v4l2-async.h                    | 105 ++++++-----
 include/media/v4l2-fwnode.h                   |  12 +-
 40 files changed, 465 insertions(+), 487 deletions(-)

diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
index 7736da077fb8..08ea2673b19e 100644
--- a/Documentation/driver-api/media/v4l2-subdev.rst
+++ b/Documentation/driver-api/media/v4l2-subdev.rst
@@ -191,21 +191,21 @@ registered this way are stored in a global list of subdevices, ready to be
 picked up by bridge drivers.
 
 Bridge drivers in turn have to register a notifier object. This is
-performed using the :c:func:`v4l2_async_notifier_register` call. To
+performed using the :c:func:`v4l2_async_nf_register` call. To
 unregister the notifier the driver has to call
-:c:func:`v4l2_async_notifier_unregister`. The former of the two functions
+:c:func:`v4l2_async_nf_unregister`. The former of the two functions
 takes two arguments: a pointer to struct :c:type:`v4l2_device` and a
 pointer to struct :c:type:`v4l2_async_notifier`.
 
 Before registering the notifier, bridge drivers must do two things: first, the
-notifier must be initialized using the :c:func:`v4l2_async_notifier_init`.
+notifier must be initialized using the :c:func:`v4l2_async_nf_init`.
 Second, bridge drivers can then begin to form a list of subdevice descriptors
 that the bridge device needs for its operation. Several functions are available
 to add subdevice descriptors to a notifier, depending on the type of device and
 the needs of the driver.
 
-:c:func:`v4l2_async_notifier_add_fwnode_remote_subdev` and
-:c:func:`v4l2_async_notifier_add_i2c_subdev` are for bridge and ISP drivers for
+:c:func:`v4l2_async_nf_add_fwnode_remote` and
+:c:func:`v4l2_async_nf_add_i2c` are for bridge and ISP drivers for
 registering their async sub-devices with the notifier.
 
 :c:func:`v4l2_async_register_subdev_sensor` is a helper function for
@@ -230,8 +230,8 @@ These functions allocate an async sub-device descriptor which is of type struct
 
 	...
 
-	my_asd = v4l2_async_notifier_add_fwnode_remote_subdev(&notifier, ep,
-							      struct my_async_subdev);
+	my_asd = v4l2_async_nf_add_fwnode_remote(&notifier, ep,
+						 struct my_async_subdev);
 	fwnode_handle_put(ep);
 
 	if (IS_ERR(asd))
diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index 6fd4d59fcc72..2aea0bd681f8 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -603,19 +603,18 @@ static int max9286_v4l2_notifier_register(struct max9286_priv *priv)
 	if (!priv->nsources)
 		return 0;
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 
 	for_each_source(priv, source) {
 		unsigned int i = to_index(priv, source);
 		struct max9286_asd *mas;
 
-		mas = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier,
-							    source->fwnode,
-							    struct max9286_asd);
+		mas = v4l2_async_nf_add_fwnode(&priv->notifier, source->fwnode,
+					       struct max9286_asd);
 		if (IS_ERR(mas)) {
 			dev_err(dev, "Failed to add subdev for source %u: %ld",
 				i, PTR_ERR(mas));
-			v4l2_async_notifier_cleanup(&priv->notifier);
+			v4l2_async_nf_cleanup(&priv->notifier);
 			return PTR_ERR(mas);
 		}
 
@@ -624,10 +623,10 @@ static int max9286_v4l2_notifier_register(struct max9286_priv *priv)
 
 	priv->notifier.ops = &max9286_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&priv->sd, &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->sd, &priv->notifier);
 	if (ret) {
 		dev_err(dev, "Failed to register subdev_notifier");
-		v4l2_async_notifier_cleanup(&priv->notifier);
+		v4l2_async_nf_cleanup(&priv->notifier);
 		return ret;
 	}
 
@@ -639,8 +638,8 @@ static void max9286_v4l2_notifier_unregister(struct max9286_priv *priv)
 	if (!priv->nsources)
 		return;
 
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 }
 
 static int max9286_s_stream(struct v4l2_subdev *sd, int enable)
diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
index 7f07ef56fbbd..78f47fa6d616 100644
--- a/drivers/media/i2c/st-mipid02.c
+++ b/drivers/media/i2c/st-mipid02.c
@@ -875,11 +875,10 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge)
 	bridge->rx = ep;
 
 	/* register async notifier so we get noticed when sensor is connected */
-	v4l2_async_notifier_init(&bridge->notifier);
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-					&bridge->notifier,
-					of_fwnode_handle(ep_node),
-					struct v4l2_async_subdev);
+	v4l2_async_nf_init(&bridge->notifier);
+	asd = v4l2_async_nf_add_fwnode_remote(&bridge->notifier,
+					      of_fwnode_handle(ep_node),
+					      struct v4l2_async_subdev);
 	of_node_put(ep_node);
 
 	if (IS_ERR(asd)) {
@@ -889,10 +888,9 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge)
 	}
 	bridge->notifier.ops = &mipid02_notifier_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&bridge->sd,
-						  &bridge->notifier);
+	ret = v4l2_async_subdev_nf_register(&bridge->sd, &bridge->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&bridge->notifier);
+		v4l2_async_nf_cleanup(&bridge->notifier);
 
 	return ret;
 
@@ -1030,8 +1028,8 @@ static int mipid02_probe(struct i2c_client *client)
 	return 0;
 
 unregister_notifier:
-	v4l2_async_notifier_unregister(&bridge->notifier);
-	v4l2_async_notifier_cleanup(&bridge->notifier);
+	v4l2_async_nf_unregister(&bridge->notifier);
+	v4l2_async_nf_cleanup(&bridge->notifier);
 power_off:
 	mipid02_set_power_off(bridge);
 entity_cleanup:
@@ -1047,8 +1045,8 @@ static int mipid02_remove(struct i2c_client *client)
 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
 	struct mipid02_dev *bridge = to_mipid02_dev(sd);
 
-	v4l2_async_notifier_unregister(&bridge->notifier);
-	v4l2_async_notifier_cleanup(&bridge->notifier);
+	v4l2_async_nf_unregister(&bridge->notifier);
+	v4l2_async_nf_cleanup(&bridge->notifier);
 	v4l2_async_unregister_subdev(&bridge->sd);
 	mipid02_set_power_off(bridge);
 	media_entity_cleanup(&bridge->sd.entity);
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
index fecef85bd62e..dc33c01a2c2d 100644
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
@@ -1478,8 +1478,9 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
 		if (ret)
 			goto err_parse;
 
-		s_asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&cio2->notifier, ep, struct sensor_async_subdev);
+		s_asd = v4l2_async_nf_add_fwnode_remote(&cio2->notifier, ep,
+							struct
+							sensor_async_subdev);
 		if (IS_ERR(s_asd)) {
 			ret = PTR_ERR(s_asd);
 			goto err_parse;
@@ -1502,7 +1503,7 @@ static int cio2_parse_firmware(struct cio2_device *cio2)
 	 * suspend.
 	 */
 	cio2->notifier.ops = &cio2_async_ops;
-	ret = v4l2_async_notifier_register(&cio2->v4l2_dev, &cio2->notifier);
+	ret = v4l2_async_nf_register(&cio2->v4l2_dev, &cio2->notifier);
 	if (ret)
 		dev_err(&cio2->pci_dev->dev,
 			"failed to register async notifier : %d\n", ret);
@@ -1804,7 +1805,7 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
 	if (r)
 		goto fail_v4l2_device_unregister;
 
-	v4l2_async_notifier_init(&cio2->notifier);
+	v4l2_async_nf_init(&cio2->notifier);
 
 	/* Register notifier for subdevices we care */
 	r = cio2_parse_firmware(cio2);
@@ -1824,8 +1825,8 @@ static int cio2_pci_probe(struct pci_dev *pci_dev,
 	return 0;
 
 fail_clean_notifier:
-	v4l2_async_notifier_unregister(&cio2->notifier);
-	v4l2_async_notifier_cleanup(&cio2->notifier);
+	v4l2_async_nf_unregister(&cio2->notifier);
+	v4l2_async_nf_cleanup(&cio2->notifier);
 	cio2_queues_exit(cio2);
 fail_v4l2_device_unregister:
 	v4l2_device_unregister(&cio2->v4l2_dev);
@@ -1844,8 +1845,8 @@ static void cio2_pci_remove(struct pci_dev *pci_dev)
 	struct cio2_device *cio2 = pci_get_drvdata(pci_dev);
 
 	media_device_unregister(&cio2->media_dev);
-	v4l2_async_notifier_unregister(&cio2->notifier);
-	v4l2_async_notifier_cleanup(&cio2->notifier);
+	v4l2_async_nf_unregister(&cio2->notifier);
+	v4l2_async_nf_cleanup(&cio2->notifier);
 	cio2_queues_exit(cio2);
 	cio2_fbpt_exit_dummy(cio2);
 	v4l2_device_unregister(&cio2->v4l2_dev);
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 6cdc77dda0e4..92603488765e 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -2295,7 +2295,7 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 
 	dev_dbg(dev, "vpfe_get_pdata\n");
 
-	v4l2_async_notifier_init(&vpfe->notifier);
+	v4l2_async_nf_init(&vpfe->notifier);
 
 	if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
 		return dev->platform_data;
@@ -2363,9 +2363,10 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 			goto cleanup;
 		}
 
-		pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
-			&vpfe->notifier, of_fwnode_handle(rem),
-			struct v4l2_async_subdev);
+		pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpfe->notifier,
+							 of_fwnode_handle(rem),
+							 struct
+							 v4l2_async_subdev);
 		of_node_put(rem);
 		if (IS_ERR(pdata->asd[i]))
 			goto cleanup;
@@ -2375,7 +2376,7 @@ vpfe_get_pdata(struct vpfe_device *vpfe)
 	return pdata;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	of_node_put(endpoint);
 	return NULL;
 }
@@ -2459,7 +2460,7 @@ static int vpfe_probe(struct platform_device *pdev)
 	}
 
 	vpfe->notifier.ops = &vpfe_async_ops;
-	ret = v4l2_async_notifier_register(&vpfe->v4l2_dev, &vpfe->notifier);
+	ret = v4l2_async_nf_register(&vpfe->v4l2_dev, &vpfe->notifier);
 	if (ret) {
 		vpfe_err(vpfe, "Error registering async notifier\n");
 		ret = -EINVAL;
@@ -2471,7 +2472,7 @@ static int vpfe_probe(struct platform_device *pdev)
 probe_out_v4l2_unregister:
 	v4l2_device_unregister(&vpfe->v4l2_dev);
 probe_out_cleanup:
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	return ret;
 }
 
@@ -2484,8 +2485,8 @@ static int vpfe_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
-	v4l2_async_notifier_unregister(&vpfe->notifier);
-	v4l2_async_notifier_cleanup(&vpfe->notifier);
+	v4l2_async_nf_unregister(&vpfe->notifier);
+	v4l2_async_nf_cleanup(&vpfe->notifier);
 	v4l2_device_unregister(&vpfe->v4l2_dev);
 	video_unregister_device(&vpfe->video_dev);
 
diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index fe3ec8d0eaee..1e183b9b2acf 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -2324,8 +2324,8 @@ void isc_subdev_cleanup(struct isc_device *isc)
 	struct isc_subdev_entity *subdev_entity;
 
 	list_for_each_entry(subdev_entity, &isc->subdev_entities, list) {
-		v4l2_async_notifier_unregister(&subdev_entity->notifier);
-		v4l2_async_notifier_cleanup(&subdev_entity->notifier);
+		v4l2_async_nf_unregister(&subdev_entity->notifier);
+		v4l2_async_nf_cleanup(&subdev_entity->notifier);
 	}
 
 	INIT_LIST_HEAD(&isc->subdev_entities);
diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c
index 0514be6153df..d5e859634545 100644
--- a/drivers/media/platform/atmel/atmel-isi.c
+++ b/drivers/media/platform/atmel/atmel-isi.c
@@ -1145,12 +1145,11 @@ static int isi_graph_init(struct atmel_isi *isi)
 	if (!ep)
 		return -EINVAL;
 
-	v4l2_async_notifier_init(&isi->notifier);
+	v4l2_async_nf_init(&isi->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-						&isi->notifier,
-						of_fwnode_handle(ep),
-						struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&isi->notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 	of_node_put(ep);
 
 	if (IS_ERR(asd))
@@ -1158,10 +1157,10 @@ static int isi_graph_init(struct atmel_isi *isi)
 
 	isi->notifier.ops = &isi_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&isi->v4l2_dev, &isi->notifier);
+	ret = v4l2_async_nf_register(&isi->v4l2_dev, &isi->notifier);
 	if (ret < 0) {
 		dev_err(isi->dev, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&isi->notifier);
+		v4l2_async_nf_cleanup(&isi->notifier);
 		return ret;
 	}
 
@@ -1313,8 +1312,8 @@ static int atmel_isi_remove(struct platform_device *pdev)
 			isi->p_fb_descriptors,
 			isi->fb_descriptors_phys);
 	pm_runtime_disable(&pdev->dev);
-	v4l2_async_notifier_unregister(&isi->notifier);
-	v4l2_async_notifier_cleanup(&isi->notifier);
+	v4l2_async_nf_unregister(&isi->notifier);
+	v4l2_async_nf_cleanup(&isi->notifier);
 	v4l2_device_unregister(&isi->v4l2_dev);
 
 	return 0;
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index 0b78fecfd2a8..f0b9af225b3f 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -208,13 +208,14 @@ static int atmel_isc_probe(struct platform_device *pdev)
 
 	list_for_each_entry(subdev_entity, &isc->subdev_entities, list) {
 		struct v4l2_async_subdev *asd;
+		struct fwnode_handle *fwnode =
+			of_fwnode_handle(subdev_entity->epn);
 
-		v4l2_async_notifier_init(&subdev_entity->notifier);
+		v4l2_async_nf_init(&subdev_entity->notifier);
 
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-					&subdev_entity->notifier,
-					of_fwnode_handle(subdev_entity->epn),
-					struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&subdev_entity->notifier,
+						      fwnode,
+						      struct v4l2_async_subdev);
 
 		of_node_put(subdev_entity->epn);
 		subdev_entity->epn = NULL;
@@ -226,8 +227,8 @@ static int atmel_isc_probe(struct platform_device *pdev)
 
 		subdev_entity->notifier.ops = &isc_async_ops;
 
-		ret = v4l2_async_notifier_register(&isc->v4l2_dev,
-						   &subdev_entity->notifier);
+		ret = v4l2_async_nf_register(&isc->v4l2_dev,
+					     &subdev_entity->notifier);
 		if (ret) {
 			dev_err(dev, "fail to register async notifier\n");
 			goto cleanup_subdev;
diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index c68a3eac62cd..56d3a379b098 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -395,21 +395,19 @@ static int csi2rx_parse_dt(struct csi2rx_priv *csi2rx)
 		return -EINVAL;
 	}
 
-	v4l2_async_notifier_init(&csi2rx->notifier);
+	v4l2_async_nf_init(&csi2rx->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&csi2rx->notifier,
-							   fwh,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi2rx->notifier, fwh,
+					      struct v4l2_async_subdev);
 	of_node_put(ep);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
 
 	csi2rx->notifier.ops = &csi2rx_notifier_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi2rx->subdev,
-						  &csi2rx->notifier);
+	ret = v4l2_async_subdev_nf_register(&csi2rx->subdev, &csi2rx->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&csi2rx->notifier);
+		v4l2_async_nf_cleanup(&csi2rx->notifier);
 
 	return ret;
 }
@@ -465,7 +463,7 @@ static int csi2rx_probe(struct platform_device *pdev)
 	return 0;
 
 err_cleanup:
-	v4l2_async_notifier_cleanup(&csi2rx->notifier);
+	v4l2_async_nf_cleanup(&csi2rx->notifier);
 err_free_priv:
 	kfree(csi2rx);
 	return ret;
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 8d2e165bf7de..3cb4cfd168c0 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1506,7 +1506,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 	struct vpif_capture_chan_config *chan;
 	unsigned int i;
 
-	v4l2_async_notifier_init(&vpif_obj.notifier);
+	v4l2_async_nf_init(&vpif_obj.notifier);
 
 	/*
 	 * DT boot: OF node from parent device contains
@@ -1582,9 +1582,10 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 		dev_dbg(&pdev->dev, "Remote device %pOF found\n", rem);
 		sdinfo->name = rem->full_name;
 
-		pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
-			&vpif_obj.notifier, of_fwnode_handle(rem),
-			struct v4l2_async_subdev);
+		pdata->asd[i] = v4l2_async_nf_add_fwnode(&vpif_obj.notifier,
+							 of_fwnode_handle(rem),
+							 struct
+							 v4l2_async_subdev);
 		if (IS_ERR(pdata->asd[i]))
 			goto err_cleanup;
 
@@ -1602,7 +1603,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
 err_cleanup:
 	of_node_put(rem);
 	of_node_put(endpoint);
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 
 	return NULL;
 }
@@ -1692,8 +1693,8 @@ static __init int vpif_probe(struct platform_device *pdev)
 			goto probe_subdev_out;
 	} else {
 		vpif_obj.notifier.ops = &vpif_async_ops;
-		err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev,
-						   &vpif_obj.notifier);
+		err = v4l2_async_nf_register(&vpif_obj.v4l2_dev,
+					     &vpif_obj.notifier);
 		if (err) {
 			vpif_err("Error registering async notifier\n");
 			err = -EINVAL;
@@ -1711,7 +1712,7 @@ static __init int vpif_probe(struct platform_device *pdev)
 vpif_free:
 	free_vpif_objs();
 cleanup:
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 
 	return err;
 }
@@ -1727,8 +1728,8 @@ static int vpif_remove(struct platform_device *device)
 	struct channel_obj *ch;
 	int i;
 
-	v4l2_async_notifier_unregister(&vpif_obj.notifier);
-	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+	v4l2_async_nf_unregister(&vpif_obj.notifier);
+	v4l2_async_nf_cleanup(&vpif_obj.notifier);
 	v4l2_device_unregister(&vpif_obj.v4l2_dev);
 
 	kfree(vpif_obj.sd);
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 1e5a28f32195..bdb6d6b5d2c6 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -464,9 +464,9 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd,
 		return -EINVAL;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&fmd->subdev_notifier, of_fwnode_handle(ep),
-		struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&fmd->subdev_notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 
 	of_node_put(ep);
 
@@ -557,7 +557,7 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd)
 
 cleanup:
 	of_node_put(ports);
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 	pm_runtime_put(fmd->pmf);
 	return ret;
 }
@@ -1484,7 +1484,7 @@ static int fimc_md_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, fmd);
 
-	v4l2_async_notifier_init(&fmd->subdev_notifier);
+	v4l2_async_nf_init(&fmd->subdev_notifier);
 
 	ret = fimc_md_register_platform_entities(fmd, dev->of_node);
 	if (ret)
@@ -1512,8 +1512,8 @@ static int fimc_md_probe(struct platform_device *pdev)
 		fmd->subdev_notifier.ops = &subdev_notifier_ops;
 		fmd->num_sensors = 0;
 
-		ret = v4l2_async_notifier_register(&fmd->v4l2_dev,
-						&fmd->subdev_notifier);
+		ret = v4l2_async_nf_register(&fmd->v4l2_dev,
+					     &fmd->subdev_notifier);
 		if (ret)
 			goto err_clk_p;
 	}
@@ -1525,7 +1525,7 @@ static int fimc_md_probe(struct platform_device *pdev)
 err_attr:
 	device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
 err_cleanup:
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 err_m_ent:
 	fimc_md_unregister_entities(fmd);
 err_clk:
@@ -1545,8 +1545,8 @@ static int fimc_md_remove(struct platform_device *pdev)
 		return 0;
 
 	fimc_md_unregister_clk_provider(fmd);
-	v4l2_async_notifier_unregister(&fmd->subdev_notifier);
-	v4l2_async_notifier_cleanup(&fmd->subdev_notifier);
+	v4l2_async_nf_unregister(&fmd->subdev_notifier);
+	v4l2_async_nf_cleanup(&fmd->subdev_notifier);
 
 	v4l2_device_unregister(&fmd->v4l2_dev);
 	device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode);
diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c b/drivers/media/platform/marvell-ccic/cafe-driver.c
index 9c94a8b58b7c..0b85d745a831 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c
@@ -547,12 +547,11 @@ static int cafe_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		goto out_pdown;
 
-	v4l2_async_notifier_init(&mcam->notifier);
+	v4l2_async_nf_init(&mcam->notifier);
 
-	asd = v4l2_async_notifier_add_i2c_subdev(&mcam->notifier,
-					i2c_adapter_id(cam->i2c_adapter),
-					ov7670_info.addr,
-					struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_i2c(&mcam->notifier,
+				    i2c_adapter_id(cam->i2c_adapter),
+				    ov7670_info.addr, struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out_smbus_shutdown;
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 141bf5d97a04..d5a12e61a8f5 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1869,7 +1869,7 @@ int mccic_register(struct mcam_camera *cam)
 	cam->mbus_code = mcam_def_mbus_code;
 
 	cam->notifier.ops = &mccic_notify_ops;
-	ret = v4l2_async_notifier_register(&cam->v4l2_dev, &cam->notifier);
+	ret = v4l2_async_nf_register(&cam->v4l2_dev, &cam->notifier);
 	if (ret < 0) {
 		cam_warn(cam, "failed to register a sensor notifier");
 		goto out;
@@ -1906,9 +1906,9 @@ int mccic_register(struct mcam_camera *cam)
 	return 0;
 
 out:
-	v4l2_async_notifier_unregister(&cam->notifier);
+	v4l2_async_nf_unregister(&cam->notifier);
 	v4l2_device_unregister(&cam->v4l2_dev);
-	v4l2_async_notifier_cleanup(&cam->notifier);
+	v4l2_async_nf_cleanup(&cam->notifier);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(mccic_register);
@@ -1928,9 +1928,9 @@ void mccic_shutdown(struct mcam_camera *cam)
 	if (cam->buffer_mode == B_vmalloc)
 		mcam_free_dma_bufs(cam);
 	v4l2_ctrl_handler_free(&cam->ctrl_handler);
-	v4l2_async_notifier_unregister(&cam->notifier);
+	v4l2_async_nf_unregister(&cam->notifier);
 	v4l2_device_unregister(&cam->v4l2_dev);
-	v4l2_async_notifier_cleanup(&cam->notifier);
+	v4l2_async_nf_cleanup(&cam->notifier);
 }
 EXPORT_SYMBOL_GPL(mccic_shutdown);
 
diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index f2f09cea751d..343ab4f7d807 100644
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -239,10 +239,10 @@ static int mmpcam_probe(struct platform_device *pdev)
 	if (!ep)
 		return -ENODEV;
 
-	v4l2_async_notifier_init(&mcam->notifier);
+	v4l2_async_nf_init(&mcam->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&mcam->notifier, ep,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&mcam->notifier, ep,
+					      struct v4l2_async_subdev);
 	fwnode_handle_put(ep);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 53025c8c7531..41f6e397f428 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -2003,7 +2003,7 @@ static int isp_remove(struct platform_device *pdev)
 {
 	struct isp_device *isp = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&isp->notifier);
+	v4l2_async_nf_unregister(&isp->notifier);
 	isp_unregister_entities(isp);
 	isp_cleanup_modules(isp);
 	isp_xclk_cleanup(isp);
@@ -2013,7 +2013,7 @@ static int isp_remove(struct platform_device *pdev)
 	__omap3isp_put(isp, false);
 
 	media_entity_enum_cleanup(&isp->crashed);
-	v4l2_async_notifier_cleanup(&isp->notifier);
+	v4l2_async_nf_cleanup(&isp->notifier);
 
 	kfree(isp);
 
@@ -2170,8 +2170,9 @@ static int isp_parse_of_endpoints(struct isp_device *isp)
 		ret = v4l2_fwnode_endpoint_parse(ep, &vep);
 
 		if (!ret) {
-			isd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&isp->notifier, ep, struct isp_async_subdev);
+			isd = v4l2_async_nf_add_fwnode_remote(&isp->notifier,
+							      ep, struct
+							      isp_async_subdev);
 			if (!IS_ERR(isd))
 				isp_parse_of_parallel_endpoint(isp->dev, &vep, &isd->bus);
 		}
@@ -2209,8 +2210,10 @@ static int isp_parse_of_endpoints(struct isp_device *isp)
 		}
 
 		if (!ret) {
-			isd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&isp->notifier, ep, struct isp_async_subdev);
+			isd = v4l2_async_nf_add_fwnode_remote(&isp->notifier,
+							      ep,
+							      struct
+							      isp_async_subdev);
 
 			if (!IS_ERR(isd)) {
 				switch (vep.bus_type) {
@@ -2287,7 +2290,7 @@ static int isp_probe(struct platform_device *pdev)
 
 	mutex_init(&isp->isp_mutex);
 	spin_lock_init(&isp->stat_lock);
-	v4l2_async_notifier_init(&isp->notifier);
+	v4l2_async_nf_init(&isp->notifier);
 	isp->dev = &pdev->dev;
 
 	ret = isp_parse_of_endpoints(isp);
@@ -2416,7 +2419,7 @@ static int isp_probe(struct platform_device *pdev)
 
 	isp->notifier.ops = &isp_subdev_notifier_ops;
 
-	ret = v4l2_async_notifier_register(&isp->v4l2_dev, &isp->notifier);
+	ret = v4l2_async_nf_register(&isp->v4l2_dev, &isp->notifier);
 	if (ret)
 		goto error_register_entities;
 
@@ -2435,7 +2438,7 @@ static int isp_probe(struct platform_device *pdev)
 	isp_xclk_cleanup(isp);
 	__omap3isp_put(isp, false);
 error:
-	v4l2_async_notifier_cleanup(&isp->notifier);
+	v4l2_async_nf_cleanup(&isp->notifier);
 	mutex_destroy(&isp->isp_mutex);
 error_release_isp:
 	kfree(isp);
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index dd510ee9b58a..ff29478aded5 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -2246,10 +2246,9 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 	if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
 		pcdev->platform_flags |= PXA_CAMERA_PCLK_EN;
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&pcdev->notifier,
-				of_fwnode_handle(np),
-				struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&pcdev->notifier,
+					      of_fwnode_handle(np),
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd))
 		err = PTR_ERR(asd);
 out:
@@ -2286,7 +2285,7 @@ static int pxa_camera_probe(struct platform_device *pdev)
 	if (IS_ERR(pcdev->clk))
 		return PTR_ERR(pcdev->clk);
 
-	v4l2_async_notifier_init(&pcdev->notifier);
+	v4l2_async_nf_init(&pcdev->notifier);
 	pcdev->res = res;
 	pcdev->pdata = pdev->dev.platform_data;
 	if (pcdev->pdata) {
@@ -2294,11 +2293,10 @@ static int pxa_camera_probe(struct platform_device *pdev)
 
 		pcdev->platform_flags = pcdev->pdata->flags;
 		pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
-		asd = v4l2_async_notifier_add_i2c_subdev(
-				&pcdev->notifier,
-				pcdev->pdata->sensor_i2c_adapter_id,
-				pcdev->pdata->sensor_i2c_address,
-				struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_i2c(&pcdev->notifier,
+					    pcdev->pdata->sensor_i2c_adapter_id,
+					    pcdev->pdata->sensor_i2c_address,
+					    struct v4l2_async_subdev);
 		if (IS_ERR(asd))
 			err = PTR_ERR(asd);
 	} else if (pdev->dev.of_node) {
@@ -2399,13 +2397,13 @@ static int pxa_camera_probe(struct platform_device *pdev)
 		goto exit_notifier_cleanup;
 
 	pcdev->notifier.ops = &pxa_camera_sensor_ops;
-	err = v4l2_async_notifier_register(&pcdev->v4l2_dev, &pcdev->notifier);
+	err = v4l2_async_nf_register(&pcdev->v4l2_dev, &pcdev->notifier);
 	if (err)
 		goto exit_notifier_cleanup;
 
 	return 0;
 exit_notifier_cleanup:
-	v4l2_async_notifier_cleanup(&pcdev->notifier);
+	v4l2_async_nf_cleanup(&pcdev->notifier);
 	v4l2_device_unregister(&pcdev->v4l2_dev);
 exit_deactivate:
 	pxa_camera_deactivate(pcdev);
@@ -2429,8 +2427,8 @@ static int pxa_camera_remove(struct platform_device *pdev)
 	dma_release_channel(pcdev->dma_chans[1]);
 	dma_release_channel(pcdev->dma_chans[2]);
 
-	v4l2_async_notifier_unregister(&pcdev->notifier);
-	v4l2_async_notifier_cleanup(&pcdev->notifier);
+	v4l2_async_nf_unregister(&pcdev->notifier);
+	v4l2_async_nf_cleanup(&pcdev->notifier);
 
 	v4l2_device_unregister(&pcdev->v4l2_dev);
 
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index d82bbc2213a6..4da4403e15bc 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -689,9 +689,9 @@ static int camss_of_parse_ports(struct camss *camss)
 			goto err_cleanup;
 		}
 
-		csd = v4l2_async_notifier_add_fwnode_subdev(
-			&camss->notifier, of_fwnode_handle(remote),
-			struct camss_async_subdev);
+		csd = v4l2_async_nf_add_fwnode(&camss->notifier,
+					       of_fwnode_handle(remote),
+					       struct camss_async_subdev);
 		of_node_put(remote);
 		if (IS_ERR(csd)) {
 			ret = PTR_ERR(csd);
@@ -1074,7 +1074,7 @@ static int camss_probe(struct platform_device *pdev)
 		goto err_free;
 	}
 
-	v4l2_async_notifier_init(&camss->notifier);
+	v4l2_async_nf_init(&camss->notifier);
 
 	num_subdevs = camss_of_parse_ports(camss);
 	if (num_subdevs < 0) {
@@ -1110,8 +1110,8 @@ static int camss_probe(struct platform_device *pdev)
 	if (num_subdevs) {
 		camss->notifier.ops = &camss_subdev_notifier_ops;
 
-		ret = v4l2_async_notifier_register(&camss->v4l2_dev,
-						   &camss->notifier);
+		ret = v4l2_async_nf_register(&camss->v4l2_dev,
+					     &camss->notifier);
 		if (ret) {
 			dev_err(dev,
 				"Failed to register async subdev nodes: %d\n",
@@ -1159,7 +1159,7 @@ static int camss_probe(struct platform_device *pdev)
 err_register_entities:
 	v4l2_device_unregister(&camss->v4l2_dev);
 err_cleanup:
-	v4l2_async_notifier_cleanup(&camss->notifier);
+	v4l2_async_nf_cleanup(&camss->notifier);
 err_free:
 	kfree(camss);
 
@@ -1193,8 +1193,8 @@ static int camss_remove(struct platform_device *pdev)
 {
 	struct camss *camss = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&camss->notifier);
-	v4l2_async_notifier_cleanup(&camss->notifier);
+	v4l2_async_nf_unregister(&camss->notifier);
+	v4l2_async_nf_cleanup(&camss->notifier);
 	camss_unregister_entities(camss);
 
 	if (atomic_read(&camss->ref_count) == 0)
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index cb3025992817..0a943468ac6e 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -641,8 +641,8 @@ static int rvin_parallel_parse_of(struct rvin_dev *vin)
 		goto out;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&vin->notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&vin->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -661,7 +661,7 @@ static int rvin_parallel_init(struct rvin_dev *vin)
 {
 	int ret;
 
-	v4l2_async_notifier_init(&vin->notifier);
+	v4l2_async_nf_init(&vin->notifier);
 
 	ret = rvin_parallel_parse_of(vin);
 	if (ret)
@@ -675,10 +675,10 @@ static int rvin_parallel_init(struct rvin_dev *vin)
 		to_of_node(vin->parallel.asd->match.fwnode));
 
 	vin->notifier.ops = &rvin_parallel_notify_ops;
-	ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier);
+	ret = v4l2_async_nf_register(&vin->v4l2_dev, &vin->notifier);
 	if (ret < 0) {
 		vin_err(vin, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&vin->notifier);
+		v4l2_async_nf_cleanup(&vin->notifier);
 		return ret;
 	}
 
@@ -841,9 +841,8 @@ static int rvin_mc_parse_of(struct rvin_dev *vin, unsigned int id)
 		goto out;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&vin->group->notifier,
-						    fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&vin->group->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -882,7 +881,7 @@ static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
 
 	mutex_unlock(&vin->group->lock);
 
-	v4l2_async_notifier_init(&vin->group->notifier);
+	v4l2_async_nf_init(&vin->group->notifier);
 
 	/*
 	 * Have all VIN's look for CSI-2 subdevices. Some subdevices will
@@ -907,11 +906,10 @@ static int rvin_mc_parse_of_graph(struct rvin_dev *vin)
 		return 0;
 
 	vin->group->notifier.ops = &rvin_group_notify_ops;
-	ret = v4l2_async_notifier_register(&vin->v4l2_dev,
-					   &vin->group->notifier);
+	ret = v4l2_async_nf_register(&vin->v4l2_dev, &vin->group->notifier);
 	if (ret < 0) {
 		vin_err(vin, "Notifier registration failed\n");
-		v4l2_async_notifier_cleanup(&vin->group->notifier);
+		v4l2_async_nf_cleanup(&vin->group->notifier);
 		return ret;
 	}
 
@@ -1451,8 +1449,8 @@ static int rcar_vin_probe(struct platform_device *pdev)
 	if (vin->info->use_mc) {
 		mutex_lock(&vin->group->lock);
 		if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) {
-			v4l2_async_notifier_unregister(&vin->group->notifier);
-			v4l2_async_notifier_cleanup(&vin->group->notifier);
+			v4l2_async_nf_unregister(&vin->group->notifier);
+			v4l2_async_nf_cleanup(&vin->group->notifier);
 		}
 		mutex_unlock(&vin->group->lock);
 		rvin_group_put(vin);
@@ -1472,12 +1470,12 @@ static int rcar_vin_remove(struct platform_device *pdev)
 
 	rvin_v4l2_unregister(vin);
 
-	v4l2_async_notifier_unregister(&vin->notifier);
-	v4l2_async_notifier_cleanup(&vin->notifier);
+	v4l2_async_nf_unregister(&vin->notifier);
+	v4l2_async_nf_cleanup(&vin->notifier);
 
 	if (vin->info->use_mc) {
-		v4l2_async_notifier_unregister(&vin->group->notifier);
-		v4l2_async_notifier_cleanup(&vin->group->notifier);
+		v4l2_async_nf_unregister(&vin->group->notifier);
+		v4l2_async_nf_cleanup(&vin->group->notifier);
 		rvin_group_put(vin);
 	}
 
diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index e06cd512aba2..a6de8d13cd57 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -906,19 +906,18 @@ static int rcsi2_parse_dt(struct rcar_csi2 *priv)
 
 	dev_dbg(priv->dev, "Found '%pOF'\n", to_of_node(fwnode));
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 	priv->notifier.ops = &rcar_csi2_notify_ops;
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&priv->notifier, fwnode,
+				       struct v4l2_async_subdev);
 	fwnode_handle_put(fwnode);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
 
-	ret = v4l2_async_subdev_notifier_register(&priv->subdev,
-						  &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->subdev, &priv->notifier);
 	if (ret)
-		v4l2_async_notifier_cleanup(&priv->notifier);
+		v4l2_async_nf_cleanup(&priv->notifier);
 
 	return ret;
 }
@@ -1265,8 +1264,8 @@ static int rcsi2_probe(struct platform_device *pdev)
 	return 0;
 
 error:
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 
 	return ret;
 }
@@ -1275,8 +1274,8 @@ static int rcsi2_remove(struct platform_device *pdev)
 {
 	struct rcar_csi2 *priv = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 	v4l2_async_unregister_subdev(&priv->subdev);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/media/platform/rcar_drif.c b/drivers/media/platform/rcar_drif.c
index 83bd9a412a56..f38f43c4832a 100644
--- a/drivers/media/platform/rcar_drif.c
+++ b/drivers/media/platform/rcar_drif.c
@@ -1213,7 +1213,7 @@ static int rcar_drif_parse_subdevs(struct rcar_drif_sdr *sdr)
 	struct fwnode_handle *fwnode, *ep;
 	struct v4l2_async_subdev *asd;
 
-	v4l2_async_notifier_init(notifier);
+	v4l2_async_nf_init(notifier);
 
 	ep = fwnode_graph_get_next_endpoint(of_fwnode_handle(sdr->dev->of_node),
 					    NULL);
@@ -1230,8 +1230,8 @@ static int rcar_drif_parse_subdevs(struct rcar_drif_sdr *sdr)
 		return -EINVAL;
 	}
 
-	asd = v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode,
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(notifier, fwnode,
+				       struct v4l2_async_subdev);
 	fwnode_handle_put(fwnode);
 	if (IS_ERR(asd))
 		return PTR_ERR(asd);
@@ -1347,7 +1347,7 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 	sdr->notifier.ops = &rcar_drif_notify_ops;
 
 	/* Register notifier */
-	ret = v4l2_async_notifier_register(&sdr->v4l2_dev, &sdr->notifier);
+	ret = v4l2_async_nf_register(&sdr->v4l2_dev, &sdr->notifier);
 	if (ret < 0) {
 		dev_err(sdr->dev, "failed: notifier register ret %d\n", ret);
 		goto cleanup;
@@ -1356,7 +1356,7 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 	return ret;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&sdr->notifier);
+	v4l2_async_nf_cleanup(&sdr->notifier);
 error:
 	v4l2_device_unregister(&sdr->v4l2_dev);
 
@@ -1366,8 +1366,8 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
 /* V4L2 SDR device remove */
 static void rcar_drif_sdr_remove(struct rcar_drif_sdr *sdr)
 {
-	v4l2_async_notifier_unregister(&sdr->notifier);
-	v4l2_async_notifier_cleanup(&sdr->notifier);
+	v4l2_async_nf_unregister(&sdr->notifier);
+	v4l2_async_nf_cleanup(&sdr->notifier);
 	v4l2_device_unregister(&sdr->v4l2_dev);
 }
 
diff --git a/drivers/media/platform/renesas-ceu.c b/drivers/media/platform/renesas-ceu.c
index cd137101d41e..f883a4a935a2 100644
--- a/drivers/media/platform/renesas-ceu.c
+++ b/drivers/media/platform/renesas-ceu.c
@@ -1510,12 +1510,12 @@ static int ceu_parse_platform_data(struct ceu_device *ceudev,
 
 		/* Setup the ceu subdevice and the async subdevice. */
 		async_sd = &pdata->subdevs[i];
-		ceu_sd = v4l2_async_notifier_add_i2c_subdev(&ceudev->notifier,
-				async_sd->i2c_adapter_id,
-				async_sd->i2c_address,
-				struct ceu_subdev);
+		ceu_sd = v4l2_async_nf_add_i2c(&ceudev->notifier,
+					       async_sd->i2c_adapter_id,
+					       async_sd->i2c_address,
+					       struct ceu_subdev);
 		if (IS_ERR(ceu_sd)) {
-			v4l2_async_notifier_cleanup(&ceudev->notifier);
+			v4l2_async_nf_cleanup(&ceudev->notifier);
 			return PTR_ERR(ceu_sd);
 		}
 		ceu_sd->mbus_flags = async_sd->flags;
@@ -1573,9 +1573,9 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 		}
 
 		/* Setup the ceu subdevice and the async subdevice. */
-		ceu_sd = v4l2_async_notifier_add_fwnode_remote_subdev(
-				&ceudev->notifier, of_fwnode_handle(ep),
-				struct ceu_subdev);
+		ceu_sd = v4l2_async_nf_add_fwnode_remote(&ceudev->notifier,
+							 of_fwnode_handle(ep),
+							 struct ceu_subdev);
 		if (IS_ERR(ceu_sd)) {
 			ret = PTR_ERR(ceu_sd);
 			goto error_cleanup;
@@ -1589,7 +1589,7 @@ static int ceu_parse_dt(struct ceu_device *ceudev)
 	return num_ep;
 
 error_cleanup:
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 	of_node_put(ep);
 	return ret;
 }
@@ -1666,7 +1666,7 @@ static int ceu_probe(struct platform_device *pdev)
 	if (ret)
 		goto error_pm_disable;
 
-	v4l2_async_notifier_init(&ceudev->notifier);
+	v4l2_async_nf_init(&ceudev->notifier);
 
 	if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
 		ceu_data = of_device_get_match_data(dev);
@@ -1688,8 +1688,7 @@ static int ceu_probe(struct platform_device *pdev)
 
 	ceudev->notifier.v4l2_dev	= &ceudev->v4l2_dev;
 	ceudev->notifier.ops		= &ceu_notify_ops;
-	ret = v4l2_async_notifier_register(&ceudev->v4l2_dev,
-					   &ceudev->notifier);
+	ret = v4l2_async_nf_register(&ceudev->v4l2_dev, &ceudev->notifier);
 	if (ret)
 		goto error_cleanup;
 
@@ -1698,7 +1697,7 @@ static int ceu_probe(struct platform_device *pdev)
 	return 0;
 
 error_cleanup:
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 error_v4l2_unregister:
 	v4l2_device_unregister(&ceudev->v4l2_dev);
 error_pm_disable:
@@ -1715,9 +1714,9 @@ static int ceu_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(ceudev->dev);
 
-	v4l2_async_notifier_unregister(&ceudev->notifier);
+	v4l2_async_nf_unregister(&ceudev->notifier);
 
-	v4l2_async_notifier_cleanup(&ceudev->notifier);
+	v4l2_async_nf_cleanup(&ceudev->notifier);
 
 	v4l2_device_unregister(&ceudev->v4l2_dev);
 
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 7474150b94ed..1f2a503ea130 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -246,7 +246,7 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 	unsigned int next_id = 0;
 	int ret;
 
-	v4l2_async_notifier_init(ntf);
+	v4l2_async_nf_init(ntf);
 
 	while (1) {
 		struct v4l2_fwnode_endpoint vep = {
@@ -265,8 +265,9 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 		if (ret)
 			goto err_parse;
 
-		rk_asd = v4l2_async_notifier_add_fwnode_remote_subdev(ntf, ep,
-							struct rkisp1_sensor_async);
+		rk_asd = v4l2_async_nf_add_fwnode_remote(ntf, ep,
+							 struct
+							 rkisp1_sensor_async);
 		if (IS_ERR(rk_asd)) {
 			ret = PTR_ERR(rk_asd);
 			goto err_parse;
@@ -286,16 +287,16 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
 		continue;
 err_parse:
 		fwnode_handle_put(ep);
-		v4l2_async_notifier_cleanup(ntf);
+		v4l2_async_nf_cleanup(ntf);
 		return ret;
 	}
 
 	if (next_id == 0)
 		dev_dbg(rkisp1->dev, "no remote subdevice found\n");
 	ntf->ops = &rkisp1_subdev_notifier_ops;
-	ret = v4l2_async_notifier_register(&rkisp1->v4l2_dev, ntf);
+	ret = v4l2_async_nf_register(&rkisp1->v4l2_dev, ntf);
 	if (ret) {
-		v4l2_async_notifier_cleanup(ntf);
+		v4l2_async_nf_cleanup(ntf);
 		return ret;
 	}
 	return 0;
@@ -542,8 +543,8 @@ static int rkisp1_remove(struct platform_device *pdev)
 {
 	struct rkisp1_device *rkisp1 = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&rkisp1->notifier);
-	v4l2_async_notifier_cleanup(&rkisp1->notifier);
+	v4l2_async_nf_unregister(&rkisp1->notifier);
+	v4l2_async_nf_cleanup(&rkisp1->notifier);
 
 	rkisp1_params_unregister(rkisp1);
 	rkisp1_stats_unregister(rkisp1);
diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index bbcc2254fa2e..6f9484eb0ab3 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1817,11 +1817,11 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
 		return -EINVAL;
 	}
 
-	v4l2_async_notifier_init(&dcmi->notifier);
+	v4l2_async_nf_init(&dcmi->notifier);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&dcmi->notifier, of_fwnode_handle(ep),
-		struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&dcmi->notifier,
+					      of_fwnode_handle(ep),
+					      struct v4l2_async_subdev);
 
 	of_node_put(ep);
 
@@ -1832,10 +1832,10 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
 
 	dcmi->notifier.ops = &dcmi_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&dcmi->v4l2_dev, &dcmi->notifier);
+	ret = v4l2_async_nf_register(&dcmi->v4l2_dev, &dcmi->notifier);
 	if (ret < 0) {
 		dev_err(dcmi->dev, "Failed to register notifier\n");
-		v4l2_async_notifier_cleanup(&dcmi->notifier);
+		v4l2_async_nf_cleanup(&dcmi->notifier);
 		return ret;
 	}
 
@@ -2053,7 +2053,7 @@ static int dcmi_probe(struct platform_device *pdev)
 	return 0;
 
 err_cleanup:
-	v4l2_async_notifier_cleanup(&dcmi->notifier);
+	v4l2_async_nf_cleanup(&dcmi->notifier);
 err_media_entity_cleanup:
 	media_entity_cleanup(&dcmi->vdev->entity);
 err_device_release:
@@ -2073,8 +2073,8 @@ static int dcmi_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
-	v4l2_async_notifier_unregister(&dcmi->notifier);
-	v4l2_async_notifier_cleanup(&dcmi->notifier);
+	v4l2_async_nf_unregister(&dcmi->notifier);
+	v4l2_async_nf_cleanup(&dcmi->notifier);
 	media_entity_cleanup(&dcmi->vdev->entity);
 	v4l2_device_unregister(&dcmi->v4l2_dev);
 	media_device_cleanup(&dcmi->mdev);
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
index 8d40a7acba9c..94e98e470aff 100644
--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
@@ -122,7 +122,7 @@ static int sun4i_csi_notifier_init(struct sun4i_csi *csi)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -135,8 +135,8 @@ static int sun4i_csi_notifier_init(struct sun4i_csi *csi)
 
 	csi->bus = vep.bus.parallel;
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(&csi->notifier, ep,
-							   struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, ep,
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto out;
@@ -244,7 +244,7 @@ static int sun4i_csi_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unregister_media;
 
-	ret = v4l2_async_notifier_register(&csi->v4l, &csi->notifier);
+	ret = v4l2_async_nf_register(&csi->v4l, &csi->notifier);
 	if (ret) {
 		dev_err(csi->dev, "Couldn't register our notifier.\n");
 		goto err_unregister_media;
@@ -268,8 +268,8 @@ static int sun4i_csi_remove(struct platform_device *pdev)
 {
 	struct sun4i_csi *csi = platform_get_drvdata(pdev);
 
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	vb2_video_unregister_device(&csi->vdev);
 	media_device_unregister(&csi->mdev);
 	sun4i_csi_dma_unregister(csi);
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index 27935f1e9555..08df0c833423 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -717,8 +717,8 @@ static int sun6i_csi_fwnode_parse(struct device *dev,
 static void sun6i_csi_v4l2_cleanup(struct sun6i_csi *csi)
 {
 	media_device_unregister(&csi->media_dev);
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	sun6i_video_cleanup(&csi->video);
 	v4l2_device_unregister(&csi->v4l2_dev);
 	v4l2_ctrl_handler_free(&csi->ctrl_handler);
@@ -737,7 +737,7 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 		 "platform:%s", dev_name(csi->dev));
 
 	media_device_init(&csi->media_dev);
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ret = v4l2_ctrl_handler_init(&csi->ctrl_handler, 0);
 	if (ret) {
@@ -759,16 +759,17 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 	if (ret)
 		goto unreg_v4l2;
 
-	ret = v4l2_async_notifier_parse_fwnode_endpoints(csi->dev,
-							 &csi->notifier,
-							 sizeof(struct v4l2_async_subdev),
-							 sun6i_csi_fwnode_parse);
+	ret = v4l2_async_nf_parse_fwnode_endpoints(csi->dev,
+						   &csi->notifier,
+						   sizeof(struct
+							  v4l2_async_subdev),
+						   sun6i_csi_fwnode_parse);
 	if (ret)
 		goto clean_video;
 
 	csi->notifier.ops = &sun6i_csi_async_ops;
 
-	ret = v4l2_async_notifier_register(&csi->v4l2_dev, &csi->notifier);
+	ret = v4l2_async_nf_register(&csi->v4l2_dev, &csi->notifier);
 	if (ret) {
 		dev_err(csi->dev, "notifier registration failed\n");
 		goto clean_video;
@@ -783,7 +784,7 @@ static int sun6i_csi_v4l2_init(struct sun6i_csi *csi)
 free_ctrl:
 	v4l2_ctrl_handler_free(&csi->ctrl_handler);
 clean_media:
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	media_device_cleanup(&csi->media_dev);
 
 	return ret;
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index fa0931788040..330187242b74 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -679,7 +679,7 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 	unsigned int i;
 	int ret;
 
-	v4l2_async_notifier_init(&cal->notifier);
+	v4l2_async_nf_init(&cal->notifier);
 	cal->notifier.ops = &cal_async_notifier_ops;
 
 	for (i = 0; i < cal->data->num_csi2_phy; ++i) {
@@ -691,9 +691,9 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 			continue;
 
 		fwnode = of_fwnode_handle(phy->sensor_node);
-		casd = v4l2_async_notifier_add_fwnode_subdev(&cal->notifier,
-							     fwnode,
-							     struct cal_v4l2_async_subdev);
+		casd = v4l2_async_nf_add_fwnode(&cal->notifier,
+						fwnode,
+						struct cal_v4l2_async_subdev);
 		if (IS_ERR(casd)) {
 			phy_err(phy, "Failed to add subdev to notifier\n");
 			ret = PTR_ERR(casd);
@@ -703,7 +703,7 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 		casd->phy = phy;
 	}
 
-	ret = v4l2_async_notifier_register(&cal->v4l2_dev, &cal->notifier);
+	ret = v4l2_async_nf_register(&cal->v4l2_dev, &cal->notifier);
 	if (ret) {
 		cal_err(cal, "Error registering async notifier\n");
 		goto error;
@@ -712,14 +712,14 @@ static int cal_async_notifier_register(struct cal_dev *cal)
 	return 0;
 
 error:
-	v4l2_async_notifier_cleanup(&cal->notifier);
+	v4l2_async_nf_cleanup(&cal->notifier);
 	return ret;
 }
 
 static void cal_async_notifier_unregister(struct cal_dev *cal)
 {
-	v4l2_async_notifier_unregister(&cal->notifier);
-	v4l2_async_notifier_cleanup(&cal->notifier);
+	v4l2_async_nf_unregister(&cal->notifier);
+	v4l2_async_nf_cleanup(&cal->notifier);
 }
 
 /* ------------------------------------------------------------------
diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c
index 133122e38515..20118ed8a5ae 100644
--- a/drivers/media/platform/video-mux.c
+++ b/drivers/media/platform/video-mux.c
@@ -358,7 +358,7 @@ static int video_mux_async_register(struct video_mux *vmux,
 	unsigned int i;
 	int ret;
 
-	v4l2_async_notifier_init(&vmux->notifier);
+	v4l2_async_nf_init(&vmux->notifier);
 
 	for (i = 0; i < num_input_pads; i++) {
 		struct v4l2_async_subdev *asd;
@@ -370,8 +370,8 @@ static int video_mux_async_register(struct video_mux *vmux,
 		if (!ep)
 			continue;
 
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&vmux->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&vmux->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -385,8 +385,7 @@ static int video_mux_async_register(struct video_mux *vmux,
 
 	vmux->notifier.ops = &video_mux_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&vmux->subdev,
-						  &vmux->notifier);
+	ret = v4l2_async_subdev_nf_register(&vmux->subdev, &vmux->notifier);
 	if (ret)
 		return ret;
 
@@ -467,8 +466,8 @@ static int video_mux_probe(struct platform_device *pdev)
 
 	ret = video_mux_async_register(vmux, num_pads - 1);
 	if (ret) {
-		v4l2_async_notifier_unregister(&vmux->notifier);
-		v4l2_async_notifier_cleanup(&vmux->notifier);
+		v4l2_async_nf_unregister(&vmux->notifier);
+		v4l2_async_nf_cleanup(&vmux->notifier);
 	}
 
 	return ret;
@@ -479,8 +478,8 @@ static int video_mux_remove(struct platform_device *pdev)
 	struct video_mux *vmux = platform_get_drvdata(pdev);
 	struct v4l2_subdev *sd = &vmux->subdev;
 
-	v4l2_async_notifier_unregister(&vmux->notifier);
-	v4l2_async_notifier_cleanup(&vmux->notifier);
+	v4l2_async_nf_unregister(&vmux->notifier);
+	v4l2_async_nf_cleanup(&vmux->notifier);
 	v4l2_async_unregister_subdev(sd);
 	media_entity_cleanup(&sd->entity);
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index bf4015d852e3..750cdbc3b460 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -382,9 +382,8 @@ static int xvip_graph_parse_one(struct xvip_composite_device *xdev,
 			continue;
 		}
 
-		xge = v4l2_async_notifier_add_fwnode_subdev(
-			&xdev->notifier, remote,
-			struct xvip_graph_entity);
+		xge = v4l2_async_nf_add_fwnode(&xdev->notifier, remote,
+					       struct xvip_graph_entity);
 		fwnode_handle_put(remote);
 		if (IS_ERR(xge)) {
 			ret = PTR_ERR(xge);
@@ -395,7 +394,7 @@ static int xvip_graph_parse_one(struct xvip_composite_device *xdev,
 	return 0;
 
 err_notifier_cleanup:
-	v4l2_async_notifier_cleanup(&xdev->notifier);
+	v4l2_async_nf_cleanup(&xdev->notifier);
 	fwnode_handle_put(ep);
 	return ret;
 }
@@ -420,7 +419,7 @@ static int xvip_graph_parse(struct xvip_composite_device *xdev)
 		entity = to_xvip_entity(asd);
 		ret = xvip_graph_parse_one(xdev, entity->asd.match.fwnode);
 		if (ret < 0) {
-			v4l2_async_notifier_cleanup(&xdev->notifier);
+			v4l2_async_nf_cleanup(&xdev->notifier);
 			break;
 		}
 	}
@@ -496,8 +495,8 @@ static void xvip_graph_cleanup(struct xvip_composite_device *xdev)
 	struct xvip_dma *dmap;
 	struct xvip_dma *dma;
 
-	v4l2_async_notifier_unregister(&xdev->notifier);
-	v4l2_async_notifier_cleanup(&xdev->notifier);
+	v4l2_async_nf_unregister(&xdev->notifier);
+	v4l2_async_nf_cleanup(&xdev->notifier);
 
 	list_for_each_entry_safe(dma, dmap, &xdev->dmas, list) {
 		xvip_dma_cleanup(dma);
@@ -531,7 +530,7 @@ static int xvip_graph_init(struct xvip_composite_device *xdev)
 	/* Register the subdevices notifier. */
 	xdev->notifier.ops = &xvip_graph_notify_ops;
 
-	ret = v4l2_async_notifier_register(&xdev->v4l2_dev, &xdev->notifier);
+	ret = v4l2_async_nf_register(&xdev->v4l2_dev, &xdev->notifier);
 	if (ret < 0) {
 		dev_err(xdev->dev, "notifier registration failed\n");
 		goto done;
@@ -595,7 +594,7 @@ static int xvip_composite_probe(struct platform_device *pdev)
 
 	xdev->dev = &pdev->dev;
 	INIT_LIST_HEAD(&xdev->dmas);
-	v4l2_async_notifier_init(&xdev->notifier);
+	v4l2_async_nf_init(&xdev->notifier);
 
 	ret = xvip_composite_v4l2_init(xdev);
 	if (ret < 0)
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index e638aa8aecb7..eecd0abbe6d1 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -24,9 +24,9 @@
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
-static int v4l2_async_notifier_call_bound(struct v4l2_async_notifier *n,
-					  struct v4l2_subdev *subdev,
-					  struct v4l2_async_subdev *asd)
+static int v4l2_async_nf_call_bound(struct v4l2_async_notifier *n,
+				    struct v4l2_subdev *subdev,
+				    struct v4l2_async_subdev *asd)
 {
 	if (!n->ops || !n->ops->bound)
 		return 0;
@@ -34,9 +34,9 @@ static int v4l2_async_notifier_call_bound(struct v4l2_async_notifier *n,
 	return n->ops->bound(n, subdev, asd);
 }
 
-static void v4l2_async_notifier_call_unbind(struct v4l2_async_notifier *n,
-					    struct v4l2_subdev *subdev,
-					    struct v4l2_async_subdev *asd)
+static void v4l2_async_nf_call_unbind(struct v4l2_async_notifier *n,
+				      struct v4l2_subdev *subdev,
+				      struct v4l2_async_subdev *asd)
 {
 	if (!n->ops || !n->ops->unbind)
 		return;
@@ -44,7 +44,7 @@ static void v4l2_async_notifier_call_unbind(struct v4l2_async_notifier *n,
 	n->ops->unbind(n, subdev, asd);
 }
 
-static int v4l2_async_notifier_call_complete(struct v4l2_async_notifier *n)
+static int v4l2_async_nf_call_complete(struct v4l2_async_notifier *n)
 {
 	if (!n->ops || !n->ops->complete)
 		return 0;
@@ -215,7 +215,7 @@ v4l2_async_find_subdev_notifier(struct v4l2_subdev *sd)
 
 /* Get v4l2_device related to the notifier if one can be found. */
 static struct v4l2_device *
-v4l2_async_notifier_find_v4l2_dev(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_find_v4l2_dev(struct v4l2_async_notifier *notifier)
 {
 	while (notifier->parent)
 		notifier = notifier->parent;
@@ -227,7 +227,7 @@ v4l2_async_notifier_find_v4l2_dev(struct v4l2_async_notifier *notifier)
  * Return true if all child sub-device notifiers are complete, false otherwise.
  */
 static bool
-v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_can_complete(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_subdev *sd;
 
@@ -239,7 +239,7 @@ v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
 			v4l2_async_find_subdev_notifier(sd);
 
 		if (subdev_notifier &&
-		    !v4l2_async_notifier_can_complete(subdev_notifier))
+		    !v4l2_async_nf_can_complete(subdev_notifier))
 			return false;
 	}
 
@@ -251,7 +251,7 @@ v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
  * sub-devices have been bound; v4l2_device is also available then.
  */
 static int
-v4l2_async_notifier_try_complete(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_try_complete(struct v4l2_async_notifier *notifier)
 {
 	/* Quick check whether there are still more sub-devices here. */
 	if (!list_empty(&notifier->waiting))
@@ -266,14 +266,14 @@ v4l2_async_notifier_try_complete(struct v4l2_async_notifier *notifier)
 		return 0;
 
 	/* Is everything ready? */
-	if (!v4l2_async_notifier_can_complete(notifier))
+	if (!v4l2_async_nf_can_complete(notifier))
 		return 0;
 
-	return v4l2_async_notifier_call_complete(notifier);
+	return v4l2_async_nf_call_complete(notifier);
 }
 
 static int
-v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier);
+v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier);
 
 static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 				   struct v4l2_device *v4l2_dev,
@@ -287,7 +287,7 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	if (ret < 0)
 		return ret;
 
-	ret = v4l2_async_notifier_call_bound(notifier, sd, asd);
+	ret = v4l2_async_nf_call_bound(notifier, sd, asd);
 	if (ret < 0) {
 		v4l2_device_unregister_subdev(sd);
 		return ret;
@@ -315,15 +315,15 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
 	 */
 	subdev_notifier->parent = notifier;
 
-	return v4l2_async_notifier_try_all_subdevs(subdev_notifier);
+	return v4l2_async_nf_try_all_subdevs(subdev_notifier);
 }
 
 /* Test all async sub-devices in a notifier for a match. */
 static int
-v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_try_all_subdevs(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_device *v4l2_dev =
-		v4l2_async_notifier_find_v4l2_dev(notifier);
+		v4l2_async_nf_find_v4l2_dev(notifier);
 	struct v4l2_subdev *sd;
 
 	if (!v4l2_dev)
@@ -367,7 +367,7 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd)
 
 /* Unbind all sub-devices in the notifier tree. */
 static void
-v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_subdev *sd, *tmp;
 
@@ -376,9 +376,9 @@ v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 			v4l2_async_find_subdev_notifier(sd);
 
 		if (subdev_notifier)
-			v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+			v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
 
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 		v4l2_async_cleanup(sd);
 
 		list_move(&sd->async_list, &subdev_list);
@@ -389,8 +389,8 @@ v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
 
 /* See if an async sub-device can be found in a notifier's lists. */
 static bool
-__v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
-				       struct v4l2_async_subdev *asd)
+__v4l2_async_nf_has_async_subdev(struct v4l2_async_notifier *notifier,
+				 struct v4l2_async_subdev *asd)
 {
 	struct v4l2_async_subdev *asd_y;
 	struct v4l2_subdev *sd;
@@ -416,9 +416,8 @@ __v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
  * If @this_index < 0, search the notifier's entire @asd_list.
  */
 static bool
-v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
-				     struct v4l2_async_subdev *asd,
-				     int this_index)
+v4l2_async_nf_has_async_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd, int this_index)
 {
 	struct v4l2_async_subdev *asd_y;
 	int j = 0;
@@ -435,15 +434,15 @@ v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
 
 	/* Check that an asd does not exist in other notifiers. */
 	list_for_each_entry(notifier, &notifier_list, list)
-		if (__v4l2_async_notifier_has_async_subdev(notifier, asd))
+		if (__v4l2_async_nf_has_async_subdev(notifier, asd))
 			return true;
 
 	return false;
 }
 
-static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
-					 struct v4l2_async_subdev *asd,
-					 int this_index)
+static int v4l2_async_nf_asd_valid(struct v4l2_async_notifier *notifier,
+				   struct v4l2_async_subdev *asd,
+				   int this_index)
 {
 	struct device *dev =
 		notifier->v4l2_dev ? notifier->v4l2_dev->dev : NULL;
@@ -454,8 +453,7 @@ static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
 	switch (asd->match_type) {
 	case V4L2_ASYNC_MATCH_I2C:
 	case V4L2_ASYNC_MATCH_FWNODE:
-		if (v4l2_async_notifier_has_async_subdev(notifier, asd,
-							 this_index)) {
+		if (v4l2_async_nf_has_async_subdev(notifier, asd, this_index)) {
 			dev_dbg(dev, "subdev descriptor already listed in this or other notifiers\n");
 			return -EEXIST;
 		}
@@ -469,13 +467,13 @@ static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
 	return 0;
 }
 
-void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_init(struct v4l2_async_notifier *notifier)
 {
 	INIT_LIST_HEAD(&notifier->asd_list);
 }
-EXPORT_SYMBOL(v4l2_async_notifier_init);
+EXPORT_SYMBOL(v4l2_async_nf_init);
 
-static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
+static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_async_subdev *asd;
 	int ret, i = 0;
@@ -486,18 +484,18 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	mutex_lock(&list_lock);
 
 	list_for_each_entry(asd, &notifier->asd_list, asd_list) {
-		ret = v4l2_async_notifier_asd_valid(notifier, asd, i++);
+		ret = v4l2_async_nf_asd_valid(notifier, asd, i++);
 		if (ret)
 			goto err_unlock;
 
 		list_add_tail(&asd->list, &notifier->waiting);
 	}
 
-	ret = v4l2_async_notifier_try_all_subdevs(notifier);
+	ret = v4l2_async_nf_try_all_subdevs(notifier);
 	if (ret < 0)
 		goto err_unbind;
 
-	ret = v4l2_async_notifier_try_complete(notifier);
+	ret = v4l2_async_nf_try_complete(notifier);
 	if (ret < 0)
 		goto err_unbind;
 
@@ -512,7 +510,7 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	/*
 	 * On failure, unbind all sub-devices registered through this notifier.
 	 */
-	v4l2_async_notifier_unbind_all_subdevs(notifier);
+	v4l2_async_nf_unbind_all_subdevs(notifier);
 
 err_unlock:
 	mutex_unlock(&list_lock);
@@ -520,8 +518,8 @@ static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
 	return ret;
 }
 
-int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
-				 struct v4l2_async_notifier *notifier)
+int v4l2_async_nf_register(struct v4l2_device *v4l2_dev,
+			   struct v4l2_async_notifier *notifier)
 {
 	int ret;
 
@@ -530,16 +528,16 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
 
 	notifier->v4l2_dev = v4l2_dev;
 
-	ret = __v4l2_async_notifier_register(notifier);
+	ret = __v4l2_async_nf_register(notifier);
 	if (ret)
 		notifier->v4l2_dev = NULL;
 
 	return ret;
 }
-EXPORT_SYMBOL(v4l2_async_notifier_register);
+EXPORT_SYMBOL(v4l2_async_nf_register);
 
-int v4l2_async_subdev_notifier_register(struct v4l2_subdev *sd,
-					struct v4l2_async_notifier *notifier)
+int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd,
+				  struct v4l2_async_notifier *notifier)
 {
 	int ret;
 
@@ -548,21 +546,21 @@ int v4l2_async_subdev_notifier_register(struct v4l2_subdev *sd,
 
 	notifier->sd = sd;
 
-	ret = __v4l2_async_notifier_register(notifier);
+	ret = __v4l2_async_nf_register(notifier);
 	if (ret)
 		notifier->sd = NULL;
 
 	return ret;
 }
-EXPORT_SYMBOL(v4l2_async_subdev_notifier_register);
+EXPORT_SYMBOL(v4l2_async_subdev_nf_register);
 
 static void
-__v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+__v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)
 {
 	if (!notifier || (!notifier->v4l2_dev && !notifier->sd))
 		return;
 
-	v4l2_async_notifier_unbind_all_subdevs(notifier);
+	v4l2_async_nf_unbind_all_subdevs(notifier);
 
 	notifier->sd = NULL;
 	notifier->v4l2_dev = NULL;
@@ -570,17 +568,17 @@ __v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
 	list_del(&notifier->list);
 }
 
-void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier)
 {
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_unregister(notifier);
+	__v4l2_async_nf_unregister(notifier);
 
 	mutex_unlock(&list_lock);
 }
-EXPORT_SYMBOL(v4l2_async_notifier_unregister);
+EXPORT_SYMBOL(v4l2_async_nf_unregister);
 
-static void __v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+static void __v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier)
 {
 	struct v4l2_async_subdev *asd, *tmp;
 
@@ -601,24 +599,24 @@ static void __v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
 	}
 }
 
-void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier)
 {
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_cleanup(notifier);
+	__v4l2_async_nf_cleanup(notifier);
 
 	mutex_unlock(&list_lock);
 }
-EXPORT_SYMBOL_GPL(v4l2_async_notifier_cleanup);
+EXPORT_SYMBOL_GPL(v4l2_async_nf_cleanup);
 
-int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
-				   struct v4l2_async_subdev *asd)
+int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd)
 {
 	int ret;
 
 	mutex_lock(&list_lock);
 
-	ret = v4l2_async_notifier_asd_valid(notifier, asd, -1);
+	ret = v4l2_async_nf_asd_valid(notifier, asd, -1);
 	if (ret)
 		goto unlock;
 
@@ -628,12 +626,12 @@ int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
 	mutex_unlock(&list_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_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)
+__v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier,
+			   struct fwnode_handle *fwnode,
+			   unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	int ret;
@@ -645,7 +643,7 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
 	asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
 	asd->match.fwnode = fwnode_handle_get(fwnode);
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret) {
 		fwnode_handle_put(fwnode);
 		kfree(asd);
@@ -654,12 +652,12 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
 
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_fwnode);
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif,
-					       struct fwnode_handle *endpoint,
-					       unsigned int asd_struct_size)
+__v4l2_async_nf_add_fwnode_remote(struct v4l2_async_notifier *notif,
+				  struct fwnode_handle *endpoint,
+				  unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	struct fwnode_handle *remote;
@@ -668,21 +666,19 @@ __v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif
 	if (!remote)
 		return ERR_PTR(-ENOTCONN);
 
-	asd = __v4l2_async_notifier_add_fwnode_subdev(notif, remote,
-						      asd_struct_size);
+	asd = __v4l2_async_nf_add_fwnode(notif, remote, asd_struct_size);
 	/*
-	 * Calling __v4l2_async_notifier_add_fwnode_subdev grabs a refcount,
+	 * Calling __v4l2_async_nf_add_fwnode grabs a refcount,
 	 * so drop the one we got in fwnode_graph_get_remote_port_parent.
 	 */
 	fwnode_handle_put(remote);
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_remote_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_fwnode_remote);
 
 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)
+__v4l2_async_nf_add_i2c(struct v4l2_async_notifier *notifier, int adapter_id,
+			unsigned short address, unsigned int asd_struct_size)
 {
 	struct v4l2_async_subdev *asd;
 	int ret;
@@ -695,7 +691,7 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
 	asd->match.i2c.adapter_id = adapter_id;
 	asd->match.i2c.address = address;
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret) {
 		kfree(asd);
 		return ERR_PTR(ret);
@@ -703,7 +699,7 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
 
 	return asd;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_i2c_subdev);
+EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_i2c);
 
 int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 {
@@ -725,7 +721,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 
 	list_for_each_entry(notifier, &notifier_list, list) {
 		struct v4l2_device *v4l2_dev =
-			v4l2_async_notifier_find_v4l2_dev(notifier);
+			v4l2_async_nf_find_v4l2_dev(notifier);
 		struct v4l2_async_subdev *asd;
 
 		if (!v4l2_dev)
@@ -739,7 +735,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 		if (ret)
 			goto err_unbind;
 
-		ret = v4l2_async_notifier_try_complete(notifier);
+		ret = v4l2_async_nf_try_complete(notifier);
 		if (ret)
 			goto err_unbind;
 
@@ -761,10 +757,10 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 	 */
 	subdev_notifier = v4l2_async_find_subdev_notifier(sd);
 	if (subdev_notifier)
-		v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+		v4l2_async_nf_unbind_all_subdevs(subdev_notifier);
 
 	if (sd->asd)
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 	v4l2_async_cleanup(sd);
 
 	mutex_unlock(&list_lock);
@@ -780,8 +776,8 @@ void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
 
 	mutex_lock(&list_lock);
 
-	__v4l2_async_notifier_unregister(sd->subdev_notifier);
-	__v4l2_async_notifier_cleanup(sd->subdev_notifier);
+	__v4l2_async_nf_unregister(sd->subdev_notifier);
+	__v4l2_async_nf_cleanup(sd->subdev_notifier);
 	kfree(sd->subdev_notifier);
 	sd->subdev_notifier = NULL;
 
@@ -790,7 +786,7 @@ void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
 
 		list_add(&sd->asd->list, &notifier->waiting);
 
-		v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+		v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
 	}
 
 	v4l2_async_cleanup(sd);
@@ -825,7 +821,7 @@ static void print_waiting_subdev(struct seq_file *s,
 }
 
 static const char *
-v4l2_async_notifier_name(struct v4l2_async_notifier *notifier)
+v4l2_async_nf_name(struct v4l2_async_notifier *notifier)
 {
 	if (notifier->v4l2_dev)
 		return notifier->v4l2_dev->name;
@@ -843,7 +839,7 @@ static int pending_subdevs_show(struct seq_file *s, void *data)
 	mutex_lock(&list_lock);
 
 	list_for_each_entry(notif, &notifier_list, list) {
-		seq_printf(s, "%s:\n", v4l2_async_notifier_name(notif));
+		seq_printf(s, "%s:\n", v4l2_async_nf_name(notif));
 		list_for_each_entry(asd, &notif->waiting, list)
 			print_waiting_subdev(s, asd);
 	}
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 843259c304bb..e5507501b0f3 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -780,11 +780,11 @@ int v4l2_fwnode_device_parse(struct device *dev,
 EXPORT_SYMBOL_GPL(v4l2_fwnode_device_parse);
 
 static int
-v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
-					  struct v4l2_async_notifier *notifier,
-					  struct fwnode_handle *endpoint,
-					  unsigned int asd_struct_size,
-					  parse_endpoint_func parse_endpoint)
+v4l2_async_nf_fwnode_parse_endpoint(struct device *dev,
+				    struct v4l2_async_notifier *notifier,
+				    struct fwnode_handle *endpoint,
+				    unsigned int asd_struct_size,
+				    parse_endpoint_func parse_endpoint)
 {
 	struct v4l2_fwnode_endpoint vep = { .bus_type = 0 };
 	struct v4l2_async_subdev *asd;
@@ -822,7 +822,7 @@ v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
 	if (ret < 0)
 		goto out_err;
 
-	ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+	ret = __v4l2_async_nf_add_subdev(notifier, asd);
 	if (ret < 0) {
 		/* not an error if asd already exists */
 		if (ret == -EEXIST)
@@ -840,12 +840,11 @@ v4l2_async_notifier_fwnode_parse_endpoint(struct device *dev,
 }
 
 static int
-__v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
-				      struct v4l2_async_notifier *notifier,
-				      size_t asd_struct_size,
-				      unsigned int port,
-				      bool has_port,
-				      parse_endpoint_func parse_endpoint)
+__v4l2_async_nf_parse_fwnode_ep(struct device *dev,
+				struct v4l2_async_notifier *notifier,
+				size_t asd_struct_size, unsigned int port,
+				bool has_port,
+				parse_endpoint_func parse_endpoint)
 {
 	struct fwnode_handle *fwnode;
 	int ret = 0;
@@ -874,11 +873,10 @@ __v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
 				continue;
 		}
 
-		ret = v4l2_async_notifier_fwnode_parse_endpoint(dev,
-								notifier,
-								fwnode,
-								asd_struct_size,
-								parse_endpoint);
+		ret = v4l2_async_nf_fwnode_parse_endpoint(dev, notifier,
+							  fwnode,
+							  asd_struct_size,
+							  parse_endpoint);
 		if (ret < 0)
 			break;
 	}
@@ -889,16 +887,15 @@ __v4l2_async_notifier_parse_fwnode_ep(struct device *dev,
 }
 
 int
-v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
-					   struct v4l2_async_notifier *notifier,
-					   size_t asd_struct_size,
-					   parse_endpoint_func parse_endpoint)
+v4l2_async_nf_parse_fwnode_endpoints(struct device *dev,
+				     struct v4l2_async_notifier *notifier,
+				     size_t asd_struct_size,
+				     parse_endpoint_func parse_endpoint)
 {
-	return __v4l2_async_notifier_parse_fwnode_ep(dev, notifier,
-						     asd_struct_size, 0,
-						     false, parse_endpoint);
+	return __v4l2_async_nf_parse_fwnode_ep(dev, notifier, asd_struct_size,
+					       0, false, parse_endpoint);
 }
-EXPORT_SYMBOL_GPL(v4l2_async_notifier_parse_fwnode_endpoints);
+EXPORT_SYMBOL_GPL(v4l2_async_nf_parse_fwnode_endpoints);
 
 /*
  * v4l2_fwnode_reference_parse - parse references for async sub-devices
@@ -942,9 +939,8 @@ static int v4l2_fwnode_reference_parse(struct device *dev,
 	     index++) {
 		struct v4l2_async_subdev *asd;
 
-		asd = v4l2_async_notifier_add_fwnode_subdev(notifier,
-							    args.fwnode,
-							    struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode(notifier, args.fwnode,
+					       struct v4l2_async_subdev);
 		fwnode_handle_put(args.fwnode);
 		if (IS_ERR(asd)) {
 			/* not an error if asd already exists */
@@ -1243,8 +1239,8 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
 	     index++) {
 		struct v4l2_async_subdev *asd;
 
-		asd = v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode,
-							    struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode(notifier, fwnode,
+					       struct v4l2_async_subdev);
 		fwnode_handle_put(fwnode);
 		if (IS_ERR(asd)) {
 			ret = PTR_ERR(asd);
@@ -1260,7 +1256,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
 }
 
 /**
- * v4l2_async_notifier_parse_fwnode_sensor - parse common references on
+ * v4l2_async_nf_parse_fwnode_sensor - parse common references on
  *					     sensors for async sub-devices
  * @dev: the device node the properties of which are parsed for references
  * @notifier: the async notifier where the async subdevs will be added
@@ -1269,7 +1265,7 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
  * sensor and set up async sub-devices for them.
  *
  * Any notifier populated using this function must be released with a call to
- * v4l2_async_notifier_release() after it has been unregistered and the async
+ * v4l2_async_nf_release() after it has been unregistered and the async
  * sub-devices are no longer in use, even in the case the function returned an
  * error.
  *
@@ -1278,8 +1274,8 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
  *	   -EINVAL if property parsing failed
  */
 static int
-v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
-					struct v4l2_async_notifier *notifier)
+v4l2_async_nf_parse_fwnode_sensor(struct device *dev,
+				  struct v4l2_async_notifier *notifier)
 {
 	static const char * const led_props[] = { "led" };
 	static const struct v4l2_fwnode_int_props props[] = {
@@ -1320,13 +1316,13 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
 	if (!notifier)
 		return -ENOMEM;
 
-	v4l2_async_notifier_init(notifier);
+	v4l2_async_nf_init(notifier);
 
-	ret = v4l2_async_notifier_parse_fwnode_sensor(sd->dev, notifier);
+	ret = v4l2_async_nf_parse_fwnode_sensor(sd->dev, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
-	ret = v4l2_async_subdev_notifier_register(sd, notifier);
+	ret = v4l2_async_subdev_nf_register(sd, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
@@ -1339,10 +1335,10 @@ int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
 	return 0;
 
 out_unregister:
-	v4l2_async_notifier_unregister(notifier);
+	v4l2_async_nf_unregister(notifier);
 
 out_cleanup:
-	v4l2_async_notifier_cleanup(notifier);
+	v4l2_async_nf_cleanup(notifier);
 	kfree(notifier);
 
 	return ret;
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index e3bfd635a89a..f51b02a9ed45 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -1908,7 +1908,7 @@ static int imx_csi_async_register(struct csi_priv *priv)
 	unsigned int port;
 	int ret;
 
-	v4l2_async_notifier_init(&priv->notifier);
+	v4l2_async_nf_init(&priv->notifier);
 
 	/* get this CSI's port id */
 	ret = fwnode_property_read_u32(dev_fwnode(priv->dev), "reg", &port);
@@ -1919,8 +1919,8 @@ static int imx_csi_async_register(struct csi_priv *priv)
 					     port, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
 	if (ep) {
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&priv->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&priv->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -1934,8 +1934,7 @@ static int imx_csi_async_register(struct csi_priv *priv)
 
 	priv->notifier.ops = &csi_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&priv->sd,
-						  &priv->notifier);
+	ret = v4l2_async_subdev_nf_register(&priv->sd, &priv->notifier);
 	if (ret)
 		return ret;
 
@@ -2024,8 +2023,8 @@ static int imx_csi_probe(struct platform_device *pdev)
 	return 0;
 
 cleanup:
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 free:
 	v4l2_ctrl_handler_free(&priv->ctrl_hdlr);
 	mutex_destroy(&priv->lock);
@@ -2039,8 +2038,8 @@ static int imx_csi_remove(struct platform_device *pdev)
 
 	v4l2_ctrl_handler_free(&priv->ctrl_hdlr);
 	mutex_destroy(&priv->lock);
-	v4l2_async_notifier_unregister(&priv->notifier);
-	v4l2_async_notifier_cleanup(&priv->notifier);
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
 	v4l2_async_unregister_subdev(sd);
 	media_entity_cleanup(&sd->entity);
 
diff --git a/drivers/staging/media/imx/imx-media-dev-common.c b/drivers/staging/media/imx/imx-media-dev-common.c
index d186179388d0..d006e961d8f4 100644
--- a/drivers/staging/media/imx/imx-media-dev-common.c
+++ b/drivers/staging/media/imx/imx-media-dev-common.c
@@ -379,7 +379,7 @@ struct imx_media_dev *imx_media_dev_init(struct device *dev,
 
 	INIT_LIST_HEAD(&imxmd->vdev_list);
 
-	v4l2_async_notifier_init(&imxmd->notifier);
+	v4l2_async_nf_init(&imxmd->notifier);
 
 	return imxmd;
 
@@ -403,11 +403,10 @@ int imx_media_dev_notifier_register(struct imx_media_dev *imxmd,
 
 	/* prepare the async subdev notifier and register it */
 	imxmd->notifier.ops = ops ? ops : &imx_media_notifier_ops;
-	ret = v4l2_async_notifier_register(&imxmd->v4l2_dev,
-					   &imxmd->notifier);
+	ret = v4l2_async_nf_register(&imxmd->v4l2_dev, &imxmd->notifier);
 	if (ret) {
 		v4l2_err(&imxmd->v4l2_dev,
-			 "v4l2_async_notifier_register failed with %d\n", ret);
+			 "v4l2_async_nf_register failed with %d\n", ret);
 		return ret;
 	}
 
diff --git a/drivers/staging/media/imx/imx-media-dev.c b/drivers/staging/media/imx/imx-media-dev.c
index 338b8bd0bb07..f85462214e22 100644
--- a/drivers/staging/media/imx/imx-media-dev.c
+++ b/drivers/staging/media/imx/imx-media-dev.c
@@ -94,7 +94,7 @@ static int imx_media_probe(struct platform_device *pdev)
 	return 0;
 
 cleanup:
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
 
@@ -113,9 +113,9 @@ static int imx_media_remove(struct platform_device *pdev)
 		imxmd->m2m_vdev = NULL;
 	}
 
-	v4l2_async_notifier_unregister(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
 	imx_media_unregister_ipu_internal_subdevs(imxmd);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	media_device_unregister(&imxmd->md);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c
index b677cf0e0c84..59f1eb7b62bc 100644
--- a/drivers/staging/media/imx/imx-media-of.c
+++ b/drivers/staging/media/imx/imx-media-of.c
@@ -29,9 +29,9 @@ int imx_media_of_add_csi(struct imx_media_dev *imxmd,
 	}
 
 	/* add CSI fwnode to async notifier */
-	asd = v4l2_async_notifier_add_fwnode_subdev(&imxmd->notifier,
-						    of_fwnode_handle(csi_np),
-						    struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode(&imxmd->notifier,
+				       of_fwnode_handle(csi_np),
+				       struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		if (ret == -EEXIST)
diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c
index fc2378ac04b7..d55e8fdfc127 100644
--- a/drivers/staging/media/imx/imx6-mipi-csi2.c
+++ b/drivers/staging/media/imx/imx6-mipi-csi2.c
@@ -647,7 +647,7 @@ static int csi2_async_register(struct csi2_dev *csi2)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi2->notifier);
+	v4l2_async_nf_init(&csi2->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi2->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -663,8 +663,8 @@ static int csi2_async_register(struct csi2_dev *csi2)
 	dev_dbg(csi2->dev, "data lanes: %d\n", vep.bus.mipi_csi2.num_data_lanes);
 	dev_dbg(csi2->dev, "flags: 0x%08x\n", vep.bus.mipi_csi2.flags);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&csi2->notifier, ep, struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&csi2->notifier, ep,
+					      struct v4l2_async_subdev);
 	fwnode_handle_put(ep);
 
 	if (IS_ERR(asd))
@@ -672,8 +672,7 @@ static int csi2_async_register(struct csi2_dev *csi2)
 
 	csi2->notifier.ops = &csi2_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi2->sd,
-						  &csi2->notifier);
+	ret = v4l2_async_subdev_nf_register(&csi2->sd, &csi2->notifier);
 	if (ret)
 		return ret;
 
@@ -768,8 +767,8 @@ static int csi2_probe(struct platform_device *pdev)
 	return 0;
 
 clean_notifier:
-	v4l2_async_notifier_unregister(&csi2->notifier);
-	v4l2_async_notifier_cleanup(&csi2->notifier);
+	v4l2_async_nf_unregister(&csi2->notifier);
+	v4l2_async_nf_cleanup(&csi2->notifier);
 	clk_disable_unprepare(csi2->dphy_clk);
 pllref_off:
 	clk_disable_unprepare(csi2->pllref_clk);
@@ -783,8 +782,8 @@ static int csi2_remove(struct platform_device *pdev)
 	struct v4l2_subdev *sd = platform_get_drvdata(pdev);
 	struct csi2_dev *csi2 = sd_to_dev(sd);
 
-	v4l2_async_notifier_unregister(&csi2->notifier);
-	v4l2_async_notifier_cleanup(&csi2->notifier);
+	v4l2_async_nf_unregister(&csi2->notifier);
+	v4l2_async_nf_cleanup(&csi2->notifier);
 	v4l2_async_unregister_subdev(sd);
 	clk_disable_unprepare(csi2->dphy_clk);
 	clk_disable_unprepare(csi2->pllref_clk);
diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index f85a2f5f1413..558544d4ffe0 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -1104,13 +1104,13 @@ static int imx7_csi_async_register(struct imx7_csi *csi)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&csi->notifier);
+	v4l2_async_nf_init(&csi->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
 	if (ep) {
-		asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-			&csi->notifier, ep, struct v4l2_async_subdev);
+		asd = v4l2_async_nf_add_fwnode_remote(&csi->notifier, ep,
+						      struct v4l2_async_subdev);
 
 		fwnode_handle_put(ep);
 
@@ -1124,7 +1124,7 @@ static int imx7_csi_async_register(struct imx7_csi *csi)
 
 	csi->notifier.ops = &imx7_csi_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&csi->sd, &csi->notifier);
+	ret = v4l2_async_subdev_nf_register(&csi->sd, &csi->notifier);
 	if (ret)
 		return ret;
 
@@ -1215,12 +1215,12 @@ static int imx7_csi_probe(struct platform_device *pdev)
 	return 0;
 
 subdev_notifier_cleanup:
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 
 cleanup:
-	v4l2_async_notifier_unregister(&imxmd->notifier);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_unregister(&imxmd->md);
 	media_device_cleanup(&imxmd->md);
@@ -1237,15 +1237,15 @@ static int imx7_csi_remove(struct platform_device *pdev)
 	struct imx7_csi *csi = v4l2_get_subdevdata(sd);
 	struct imx_media_dev *imxmd = csi->imxmd;
 
-	v4l2_async_notifier_unregister(&imxmd->notifier);
-	v4l2_async_notifier_cleanup(&imxmd->notifier);
+	v4l2_async_nf_unregister(&imxmd->notifier);
+	v4l2_async_nf_cleanup(&imxmd->notifier);
 
 	media_device_unregister(&imxmd->md);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
 	media_device_cleanup(&imxmd->md);
 
-	v4l2_async_notifier_unregister(&csi->notifier);
-	v4l2_async_notifier_cleanup(&csi->notifier);
+	v4l2_async_nf_unregister(&csi->notifier);
+	v4l2_async_nf_cleanup(&csi->notifier);
 	v4l2_async_unregister_subdev(sd);
 
 	mutex_destroy(&csi->lock);
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index bd587e550d99..6e28a79d8b38 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -1083,7 +1083,7 @@ static int mipi_csis_async_register(struct csi_state *state)
 	struct fwnode_handle *ep;
 	int ret;
 
-	v4l2_async_notifier_init(&state->notifier);
+	v4l2_async_nf_init(&state->notifier);
 
 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(state->dev), 0, 0,
 					     FWNODE_GRAPH_ENDPOINT_NEXT);
@@ -1099,8 +1099,8 @@ static int mipi_csis_async_register(struct csi_state *state)
 	dev_dbg(state->dev, "data lanes: %d\n", state->bus.num_data_lanes);
 	dev_dbg(state->dev, "flags: 0x%08x\n", state->bus.flags);
 
-	asd = v4l2_async_notifier_add_fwnode_remote_subdev(
-		&state->notifier, ep, struct v4l2_async_subdev);
+	asd = v4l2_async_nf_add_fwnode_remote(&state->notifier, ep,
+					      struct v4l2_async_subdev);
 	if (IS_ERR(asd)) {
 		ret = PTR_ERR(asd);
 		goto err_parse;
@@ -1110,8 +1110,7 @@ static int mipi_csis_async_register(struct csi_state *state)
 
 	state->notifier.ops = &mipi_csis_notify_ops;
 
-	ret = v4l2_async_subdev_notifier_register(&state->mipi_sd,
-						  &state->notifier);
+	ret = v4l2_async_subdev_nf_register(&state->mipi_sd, &state->notifier);
 	if (ret)
 		return ret;
 
@@ -1231,8 +1230,8 @@ static int mipi_csis_probe(struct platform_device *pdev)
 	mipi_csis_debugfs_exit(state);
 cleanup:
 	media_entity_cleanup(&state->mipi_sd.entity);
-	v4l2_async_notifier_unregister(&state->notifier);
-	v4l2_async_notifier_cleanup(&state->notifier);
+	v4l2_async_nf_unregister(&state->notifier);
+	v4l2_async_nf_cleanup(&state->notifier);
 	v4l2_async_unregister_subdev(&state->mipi_sd);
 disable_clock:
 	mipi_csis_clk_disable(state);
@@ -1320,8 +1319,8 @@ static int mipi_csis_remove(struct platform_device *pdev)
 	struct csi_state *state = mipi_sd_to_csis_state(mipi_sd);
 
 	mipi_csis_debugfs_exit(state);
-	v4l2_async_notifier_unregister(&state->notifier);
-	v4l2_async_notifier_cleanup(&state->notifier);
+	v4l2_async_nf_unregister(&state->notifier);
+	v4l2_async_nf_cleanup(&state->notifier);
 	v4l2_async_unregister_subdev(&state->mipi_sd);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 7a09061cda57..655e27a242a2 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -1273,7 +1273,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
 	}
 
 	if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
-		v4l2_async_notifier_init(&chan->notifier);
+		v4l2_async_nf_init(&chan->notifier);
 
 	return 0;
 
@@ -1812,8 +1812,8 @@ static int tegra_vi_graph_parse_one(struct tegra_vi_channel *chan,
 			continue;
 		}
 
-		tvge = v4l2_async_notifier_add_fwnode_subdev(&chan->notifier,
-				remote, struct tegra_vi_graph_entity);
+		tvge = v4l2_async_nf_add_fwnode(&chan->notifier, remote,
+						struct tegra_vi_graph_entity);
 		if (IS_ERR(tvge)) {
 			ret = PTR_ERR(tvge);
 			dev_err(vi->dev,
@@ -1835,7 +1835,7 @@ static int tegra_vi_graph_parse_one(struct tegra_vi_channel *chan,
 
 cleanup:
 	dev_err(vi->dev, "failed parsing the graph: %d\n", ret);
-	v4l2_async_notifier_cleanup(&chan->notifier);
+	v4l2_async_nf_cleanup(&chan->notifier);
 	of_node_put(node);
 	return ret;
 }
@@ -1869,13 +1869,12 @@ static int tegra_vi_graph_init(struct tegra_vi *vi)
 			continue;
 
 		chan->notifier.ops = &tegra_vi_async_ops;
-		ret = v4l2_async_notifier_register(&vid->v4l2_dev,
-						   &chan->notifier);
+		ret = v4l2_async_nf_register(&vid->v4l2_dev, &chan->notifier);
 		if (ret < 0) {
 			dev_err(vi->dev,
 				"failed to register channel %d notifier: %d\n",
 				chan->portnos[0], ret);
-			v4l2_async_notifier_cleanup(&chan->notifier);
+			v4l2_async_nf_cleanup(&chan->notifier);
 		}
 	}
 
@@ -1888,8 +1887,8 @@ static void tegra_vi_graph_cleanup(struct tegra_vi *vi)
 
 	list_for_each_entry(chan, &vi->vi_chans, list) {
 		vb2_video_unregister_device(&chan->video);
-		v4l2_async_notifier_unregister(&chan->notifier);
-		v4l2_async_notifier_cleanup(&chan->notifier);
+		v4l2_async_nf_unregister(&chan->notifier);
+		v4l2_async_nf_cleanup(&chan->notifier);
 	}
 }
 
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index fa4901162663..13ff3ad948f4 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -123,45 +123,45 @@ struct v4l2_async_notifier {
 void v4l2_async_debug_init(struct dentry *debugfs_dir);
 
 /**
- * v4l2_async_notifier_init - Initialize a notifier.
+ * v4l2_async_nf_init - Initialize a notifier.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  *
  * This function initializes the notifier @asd_list. It must be called
  * before adding a subdevice to a notifier, using one of:
- * v4l2_async_notifier_add_fwnode_remote_subdev(),
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_i2c_subdev(),
- * __v4l2_async_notifier_add_subdev() or
- * v4l2_async_notifier_parse_fwnode_endpoints().
+ * v4l2_async_nf_add_fwnode_remote(),
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_i2c(),
+ * __v4l2_async_nf_add_subdev() or
+ * v4l2_async_nf_parse_fwnode_endpoints().
  */
-void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_init(struct v4l2_async_notifier *notifier);
 
 /**
- * __v4l2_async_notifier_add_subdev - Add an async subdev to the
+ * __v4l2_async_nf_add_subdev - Add an async subdev to the
  *				notifier's master asd list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  * @asd: pointer to &struct v4l2_async_subdev
  *
  * \warning: Drivers should avoid using this function and instead use one of:
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_fwnode_remote_subdev() or
- * v4l2_async_notifier_add_i2c_subdev().
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_fwnode_remote() or
+ * v4l2_async_nf_add_i2c().
  *
  * Call this function before registering a notifier to link the provided @asd to
  * the notifiers master @asd_list. The @asd must be allocated with k*alloc() as
  * it will be freed by the framework when the notifier is destroyed.
  */
-int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
-				   struct v4l2_async_subdev *asd);
+int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
+			       struct v4l2_async_subdev *asd);
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
-					struct fwnode_handle *fwnode,
-					unsigned int asd_struct_size);
+__v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier,
+			   struct fwnode_handle *fwnode,
+			   unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_fwnode_subdev - Allocate and add a fwnode async
+ * v4l2_async_nf_add_fwnode - Allocate and add a fwnode async
  *				subdev to the notifier's master asd_list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
@@ -175,16 +175,15 @@ __v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
  * notifiers @asd_list. The function also gets a reference of the fwnode which
  * is released later at notifier cleanup time.
  */
-#define v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode, type)	\
-	((type *)__v4l2_async_notifier_add_fwnode_subdev(notifier, fwnode, \
-							   sizeof(type)))
+#define v4l2_async_nf_add_fwnode(notifier, fwnode, type)		\
+	((type *)__v4l2_async_nf_add_fwnode(notifier, fwnode, sizeof(type)))
 
 struct v4l2_async_subdev *
-__v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif,
-					       struct fwnode_handle *endpoint,
-					       unsigned int asd_struct_size);
+__v4l2_async_nf_add_fwnode_remote(struct v4l2_async_notifier *notif,
+				  struct fwnode_handle *endpoint,
+				  unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_fwnode_remote_subdev - Allocate and add a fwnode
+ * v4l2_async_nf_add_fwnode_remote - Allocate and add a fwnode
  *						  remote async subdev to the
  *						  notifier's master asd_list.
  *
@@ -200,20 +199,18 @@ __v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier *notif
  * function also gets a reference of the fwnode which is released later at
  * notifier cleanup time.
  *
- * This is just like v4l2_async_notifier_add_fwnode_subdev(), but with the
+ * This is just like v4l2_async_nf_add_fwnode(), but with the
  * exception that the fwnode refers to a local endpoint, not the remote one.
  */
-#define v4l2_async_notifier_add_fwnode_remote_subdev(notifier, ep, type) \
-	((type *)							\
-	 __v4l2_async_notifier_add_fwnode_remote_subdev(notifier, ep,	\
-							sizeof(type)))
+#define v4l2_async_nf_add_fwnode_remote(notifier, ep, type) \
+	((type *)__v4l2_async_nf_add_fwnode_remote(notifier, ep, sizeof(type)))
 
 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);
+__v4l2_async_nf_add_i2c(struct v4l2_async_notifier *notifier,
+			int adapter_id, unsigned short address,
+			unsigned int asd_struct_size);
 /**
- * v4l2_async_notifier_add_i2c_subdev - Allocate and add an i2c async
+ * v4l2_async_nf_add_i2c - Allocate and add an i2c async
  *				subdev to the notifier's master asd_list.
  *
  * @notifier: pointer to &struct v4l2_async_notifier
@@ -223,59 +220,59 @@ __v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
  *	  v4l2_async_subdev shall be the first member of the driver's async
  *	  sub-device struct, i.e. both begin at the same memory address.
  *
- * Same as v4l2_async_notifier_add_fwnode_subdev() but for I2C matched
+ * Same as v4l2_async_nf_add_fwnode() but for I2C matched
  * sub-devices.
  */
-#define v4l2_async_notifier_add_i2c_subdev(notifier, adapter, address, type) \
-	((type *)__v4l2_async_notifier_add_i2c_subdev(notifier, adapter, \
-						      address, sizeof(type)))
+#define v4l2_async_nf_add_i2c(notifier, adapter, address, type) \
+	((type *)__v4l2_async_nf_add_i2c(notifier, adapter, address, \
+					 sizeof(type)))
 
 /**
- * v4l2_async_notifier_register - registers a subdevice asynchronous notifier
+ * 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_notifier_register(struct v4l2_device *v4l2_dev,
-				 struct v4l2_async_notifier *notifier);
+int v4l2_async_nf_register(struct v4l2_device *v4l2_dev,
+			   struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_subdev_notifier_register - registers a subdevice asynchronous
+ * 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_notifier_register(struct v4l2_subdev *sd,
-					struct v4l2_async_notifier *notifier);
+int v4l2_async_subdev_nf_register(struct v4l2_subdev *sd,
+				  struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_notifier_unregister - unregisters a subdevice
+ * v4l2_async_nf_unregister - unregisters a subdevice
  *	asynchronous notifier
  *
  * @notifier: pointer to &struct v4l2_async_notifier
  */
-void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier);
 
 /**
- * v4l2_async_notifier_cleanup - clean up notifier resources
+ * v4l2_async_nf_cleanup - clean up notifier resources
  * @notifier: the notifier the resources of which are to be cleaned up
  *
  * Release memory resources related to a notifier, including the async
  * sub-devices allocated for the purposes of the notifier but not the notifier
  * itself. The user is responsible for calling this function to clean up the
  * notifier after calling
- * v4l2_async_notifier_add_fwnode_remote_subdev(),
- * v4l2_async_notifier_add_fwnode_subdev(),
- * v4l2_async_notifier_add_i2c_subdev(),
- * __v4l2_async_notifier_add_subdev() or
- * v4l2_async_notifier_parse_fwnode_endpoints().
+ * v4l2_async_nf_add_fwnode_remote(),
+ * v4l2_async_nf_add_fwnode(),
+ * v4l2_async_nf_add_i2c(),
+ * __v4l2_async_nf_add_subdev() or
+ * v4l2_async_nf_parse_fwnode_endpoints().
  *
- * There is no harm from calling v4l2_async_notifier_cleanup() in other
+ * There is no harm from calling v4l2_async_nf_cleanup() in other
  * cases as long as its memory has been zeroed after it has been
  * allocated.
  */
-void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier);
+void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier);
 
 /**
  * v4l2_async_register_subdev - registers a sub-device to the asynchronous
@@ -295,7 +292,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
  *
  * This function is just like v4l2_async_register_subdev() with the exception
  * that calling it will also parse firmware interfaces for remote references
- * using v4l2_async_notifier_parse_fwnode_sensor() and registers the
+ * using v4l2_async_nf_parse_fwnode_sensor() and registers the
  * async sub-devices. The sub-device is similarly unregistered by calling
  * v4l2_async_unregister_subdev().
  *
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index 7ab033b819eb..9c97f1dbd1c6 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -463,7 +463,7 @@ typedef int (*parse_endpoint_func)(struct device *dev,
 				  struct v4l2_async_subdev *asd);
 
 /**
- * v4l2_async_notifier_parse_fwnode_endpoints - Parse V4L2 fwnode endpoints in a
+ * v4l2_async_nf_parse_fwnode_endpoints - Parse V4L2 fwnode endpoints in a
  *						device node
  * @dev: the device the endpoints of which are to be parsed
  * @notifier: notifier for @dev
@@ -496,7 +496,7 @@ typedef int (*parse_endpoint_func)(struct device *dev,
  * to retain that configuration, the user needs to allocate memory for it.
  *
  * Any notifier populated using this function must be released with a call to
- * v4l2_async_notifier_cleanup() after it has been unregistered and the async
+ * v4l2_async_nf_cleanup() after it has been unregistered and the async
  * sub-devices are no longer in use, even if the function returned an error.
  *
  * Return: %0 on success, including when no async sub-devices are found
@@ -505,10 +505,10 @@ typedef int (*parse_endpoint_func)(struct device *dev,
  *	   Other error codes as returned by @parse_endpoint
  */
 int
-v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
-					   struct v4l2_async_notifier *notifier,
-					   size_t asd_struct_size,
-					   parse_endpoint_func parse_endpoint);
+v4l2_async_nf_parse_fwnode_endpoints(struct device *dev,
+				     struct v4l2_async_notifier *notifier,
+				     size_t asd_struct_size,
+				     parse_endpoint_func parse_endpoint);
 
 /* Helper macros to access the connector links. */
 
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper
  2021-03-12 12:56 ` [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper Sakari Ailus
@ 2021-03-23 16:18   ` Ezequiel Garcia
  0 siblings, 0 replies; 14+ messages in thread
From: Ezequiel Garcia @ 2021-03-23 16:18 UTC (permalink / raw)
  To: Sakari Ailus, linux-media; +Cc: ezequiel.garcia

On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> Rename v4l2_async_notifier_parse_fwnode_sensor_common() as
> v4l2_async_notifier_parse_fwnode_sensor() and make the function static, as
> it's not used by a driver and maybe never will.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>

Thanks,
Ezequiel

> ---
>  drivers/media/v4l2-core/v4l2-fwnode.c | 27 ++++++++++++++++++++++-----
>  include/media/v4l2-async.h            |  2 +-
>  include/media/v4l2-fwnode.h           | 21 ---------------------
>  3 files changed, 23 insertions(+), 27 deletions(-)
> 
> diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
> index 2283ff3b8e1d..9c1b38919491 100644
> --- a/drivers/media/v4l2-core/v4l2-fwnode.c
> +++ b/drivers/media/v4l2-core/v4l2-fwnode.c
> @@ -1259,8 +1259,27 @@ v4l2_fwnode_reference_parse_int_props(struct device *dev,
>         return !fwnode || PTR_ERR(fwnode) == -ENOENT ? 0 : PTR_ERR(fwnode);
>  }
>  
> -int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
> -                                                  struct v4l2_async_notifier *notifier)
> +/**
> + * v4l2_async_notifier_parse_fwnode_sensor - parse common references on
> + *                                          sensors for async sub-devices
> + * @dev: the device node the properties of which are parsed for references
> + * @notifier: the async notifier where the async subdevs will be added
> + *
> + * Parse common sensor properties for remote devices related to the
> + * sensor and set up async sub-devices for them.
> + *
> + * Any notifier populated using this function must be released with a call to
> + * v4l2_async_notifier_release() after it has been unregistered and the async
> + * sub-devices are no longer in use, even in the case the function returned an
> + * error.
> + *
> + * Return: 0 on success
> + *        -ENOMEM if memory allocation failed
> + *        -EINVAL if property parsing failed
> + */
> +static int
> +v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
> +                                       struct v4l2_async_notifier *notifier)
>  {
>         static const char * const led_props[] = { "led" };
>         static const struct v4l2_fwnode_int_props props[] = {
> @@ -1288,7 +1307,6 @@ int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
>  
>         return 0;
>  }
> -EXPORT_SYMBOL_GPL(v4l2_async_notifier_parse_fwnode_sensor_common);
>  
>  int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
>  {
> @@ -1304,8 +1322,7 @@ int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
>  
>         v4l2_async_notifier_init(notifier);
>  
> -       ret = v4l2_async_notifier_parse_fwnode_sensor_common(sd->dev,
> -                                                            notifier);
> +       ret = v4l2_async_notifier_parse_fwnode_sensor(sd->dev, notifier);
>         if (ret < 0)
>                 goto out_cleanup;
>  
> diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
> index d28cbe8142b8..aee28c0e31ac 100644
> --- a/include/media/v4l2-async.h
> +++ b/include/media/v4l2-async.h
> @@ -295,7 +295,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
>   *
>   * This function is just like v4l2_async_register_subdev() with the exception
>   * that calling it will also parse firmware interfaces for remote references
> - * using v4l2_async_notifier_parse_fwnode_sensor_common() and registers the
> + * using v4l2_async_notifier_parse_fwnode_sensor() and registers the
>   * async sub-devices. The sub-device is similarly unregistered by calling
>   * v4l2_async_unregister_subdev().
>   *
> diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> index 80d21ad8d603..7ab033b819eb 100644
> --- a/include/media/v4l2-fwnode.h
> +++ b/include/media/v4l2-fwnode.h
> @@ -510,27 +510,6 @@ v4l2_async_notifier_parse_fwnode_endpoints(struct device *dev,
>                                            size_t asd_struct_size,
>                                            parse_endpoint_func parse_endpoint);
>  
> -/**
> - * v4l2_async_notifier_parse_fwnode_sensor_common - parse common references on
> - *                                            sensors for async sub-devices
> - * @dev: the device node the properties of which are parsed for references
> - * @notifier: the async notifier where the async subdevs will be added
> - *
> - * Parse common sensor properties for remote devices related to the
> - * sensor and set up async sub-devices for them.
> - *
> - * Any notifier populated using this function must be released with a call to
> - * v4l2_async_notifier_release() after it has been unregistered and the async
> - * sub-devices are no longer in use, even in the case the function returned an
> - * error.
> - *
> - * Return: 0 on success
> - *        -ENOMEM if memory allocation failed
> - *        -EINVAL if property parsing failed
> - */
> -int v4l2_async_notifier_parse_fwnode_sensor_common(struct device *dev,
> -                                                  struct v4l2_async_notifier *notifier);
> -
>  /* Helper macros to access the connector links. */
>  
>  /** v4l2_connector_last_link - Helper macro to get the first




^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common
  2021-03-12 12:56 ` [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common Sakari Ailus
@ 2021-03-23 16:56   ` Ezequiel Garcia
  0 siblings, 0 replies; 14+ messages in thread
From: Ezequiel Garcia @ 2021-03-23 16:56 UTC (permalink / raw)
  To: Sakari Ailus, linux-media; +Cc: ezequiel.garcia

On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> Rename v4l2_async_register_subdev_sensor_common as
> v4l2_async_register_subdev_sensor. This is a part of the effort to make
> the long names present in V4L2 fwnode and async frameworks shorter.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>

Thanks!

> ---
>  Documentation/driver-api/media/v4l2-subdev.rst |  2 +-
>  drivers/media/i2c/ccs/ccs-core.c               |  2 +-
>  drivers/media/i2c/et8ek8/et8ek8_driver.c       |  2 +-
>  drivers/media/i2c/hi556.c                      |  2 +-
>  drivers/media/i2c/imx214.c                     |  2 +-
>  drivers/media/i2c/imx219.c                     |  2 +-
>  drivers/media/i2c/imx258.c                     |  2 +-
>  drivers/media/i2c/imx319.c                     |  2 +-
>  drivers/media/i2c/imx334.c                     |  2 +-
>  drivers/media/i2c/imx355.c                     |  2 +-
>  drivers/media/i2c/ov13858.c                    |  2 +-
>  drivers/media/i2c/ov2740.c                     |  2 +-
>  drivers/media/i2c/ov5640.c                     |  2 +-
>  drivers/media/i2c/ov5648.c                     |  2 +-
>  drivers/media/i2c/ov5670.c                     |  2 +-
>  drivers/media/i2c/ov5675.c                     |  2 +-
>  drivers/media/i2c/ov5695.c                     |  2 +-
>  drivers/media/i2c/ov8856.c                     |  2 +-
>  drivers/media/i2c/ov8865.c                     |  2 +-
>  drivers/media/i2c/ov9734.c                     |  2 +-
>  drivers/media/v4l2-core/v4l2-fwnode.c          |  4 ++--
>  include/media/v4l2-async.h                     | 10 +++++-----
>  22 files changed, 27 insertions(+), 27 deletions(-)
> 
> diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
> index e1f05cd38897..7736da077fb8 100644
> --- a/Documentation/driver-api/media/v4l2-subdev.rst
> +++ b/Documentation/driver-api/media/v4l2-subdev.rst
> @@ -208,7 +208,7 @@ the needs of the driver.
>  :c:func:`v4l2_async_notifier_add_i2c_subdev` are for bridge and ISP drivers for
>  registering their async sub-devices with the notifier.
>  
> -:c:func:`v4l2_async_register_subdev_sensor_common` is a helper function for
> +:c:func:`v4l2_async_register_subdev_sensor` is a helper function for
>  sensor drivers registering their own async sub-device, but it also registers a
>  notifier and further registers async sub-devices for lens and flash devices
>  found in firmware. The notifier for the sub-device is unregistered with the
> diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
> index 4505594996bd..9dc3f45da3dc 100644
> --- a/drivers/media/i2c/ccs/ccs-core.c
> +++ b/drivers/media/i2c/ccs/ccs-core.c
> @@ -3572,7 +3572,7 @@ static int ccs_probe(struct i2c_client *client)
>         pm_runtime_get_noresume(&client->dev);
>         pm_runtime_enable(&client->dev);
>  
> -       rval = v4l2_async_register_subdev_sensor_common(&sensor->src->sd);
> +       rval = v4l2_async_register_subdev_sensor(&sensor->src->sd);
>         if (rval < 0)
>                 goto out_disable_runtime_pm;
>  
> diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c
> index 122af761c8e3..bb3eac5e005e 100644
> --- a/drivers/media/i2c/et8ek8/et8ek8_driver.c
> +++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c
> @@ -1443,7 +1443,7 @@ static int et8ek8_probe(struct i2c_client *client)
>                 goto err_mutex;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&sensor->subdev);
> +       ret = v4l2_async_register_subdev_sensor(&sensor->subdev);
>         if (ret < 0)
>                 goto err_entity;
>  
> diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c
> index c74736845d7a..6f05c1138e3b 100644
> --- a/drivers/media/i2c/hi556.c
> +++ b/drivers/media/i2c/hi556.c
> @@ -1145,7 +1145,7 @@ static int hi556_probe(struct i2c_client *client)
>                 goto probe_error_v4l2_ctrl_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&hi556->sd);
> +       ret = v4l2_async_register_subdev_sensor(&hi556->sd);
>         if (ret < 0) {
>                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
>                         ret);
> diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
> index cee1a4817af9..e8b281e432e8 100644
> --- a/drivers/media/i2c/imx214.c
> +++ b/drivers/media/i2c/imx214.c
> @@ -1061,7 +1061,7 @@ static int imx214_probe(struct i2c_client *client)
>  
>         imx214_entity_init_cfg(&imx214->sd, NULL);
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx214->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx214->sd);
>         if (ret < 0) {
>                 dev_err(dev, "could not register v4l2 device\n");
>                 goto free_entity;
> diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> index 6e3382b85a90..909e1d418f33 100644
> --- a/drivers/media/i2c/imx219.c
> +++ b/drivers/media/i2c/imx219.c
> @@ -1528,7 +1528,7 @@ static int imx219_probe(struct i2c_client *client)
>                 goto error_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx219->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx219->sd);
>         if (ret < 0) {
>                 dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
>                 goto error_media_entity;
> diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
> index 61d74b794582..61b2d87a9761 100644
> --- a/drivers/media/i2c/imx258.c
> +++ b/drivers/media/i2c/imx258.c
> @@ -1289,7 +1289,7 @@ static int imx258_probe(struct i2c_client *client)
>         if (ret)
>                 goto error_handler_free;
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx258->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx258->sd);
>         if (ret < 0)
>                 goto error_media_entity;
>  
> diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
> index 8473c0bbb35d..38540323a156 100644
> --- a/drivers/media/i2c/imx319.c
> +++ b/drivers/media/i2c/imx319.c
> @@ -2486,7 +2486,7 @@ static int imx319_probe(struct i2c_client *client)
>                 goto error_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx319->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx319->sd);
>         if (ret < 0)
>                 goto error_media_entity;
>  
> diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c
> index ad530f0d338a..047aa7658d21 100644
> --- a/drivers/media/i2c/imx334.c
> +++ b/drivers/media/i2c/imx334.c
> @@ -1057,7 +1057,7 @@ static int imx334_probe(struct i2c_client *client)
>                 goto error_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx334->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx334->sd);
>         if (ret < 0) {
>                 dev_err(imx334->dev,
>                         "failed to register async subdev: %d", ret);
> diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
> index 700f7467fb31..ccedcd4c520a 100644
> --- a/drivers/media/i2c/imx355.c
> +++ b/drivers/media/i2c/imx355.c
> @@ -1786,7 +1786,7 @@ static int imx355_probe(struct i2c_client *client)
>                 goto error_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&imx355->sd);
> +       ret = v4l2_async_register_subdev_sensor(&imx355->sd);
>         if (ret < 0)
>                 goto error_media_entity;
>  
> diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c
> index 2f3be7a80cef..4a2885ff0cbe 100644
> --- a/drivers/media/i2c/ov13858.c
> +++ b/drivers/media/i2c/ov13858.c
> @@ -1738,7 +1738,7 @@ static int ov13858_probe(struct i2c_client *client,
>                 goto error_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&ov13858->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov13858->sd);
>         if (ret < 0)
>                 goto error_media_entity;
>  
> diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
> index b41a90c2aed5..0f3f17f3c426 100644
> --- a/drivers/media/i2c/ov2740.c
> +++ b/drivers/media/i2c/ov2740.c
> @@ -1154,7 +1154,7 @@ static int ov2740_probe(struct i2c_client *client)
>                 goto probe_error_v4l2_ctrl_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&ov2740->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov2740->sd);
>         if (ret < 0) {
>                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
>                         ret);
> diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> index 14f3afa7721a..5b9cc71df473 100644
> --- a/drivers/media/i2c/ov5640.c
> +++ b/drivers/media/i2c/ov5640.c
> @@ -3162,7 +3162,7 @@ static int ov5640_probe(struct i2c_client *client)
>         if (ret)
>                 goto entity_cleanup;
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&sensor->sd);
> +       ret = v4l2_async_register_subdev_sensor(&sensor->sd);
>         if (ret)
>                 goto free_ctrls;
>  
> diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
> index dfe38ab8224d..3ecb4a3e8773 100644
> --- a/drivers/media/i2c/ov5648.c
> +++ b/drivers/media/i2c/ov5648.c
> @@ -2559,7 +2559,7 @@ static int ov5648_probe(struct i2c_client *client)
>  
>         /* V4L2 subdev register */
>  
> -       ret = v4l2_async_register_subdev_sensor_common(subdev);
> +       ret = v4l2_async_register_subdev_sensor(subdev);
>         if (ret)
>                 goto error_pm;
>  
> diff --git a/drivers/media/i2c/ov5670.c b/drivers/media/i2c/ov5670.c
> index 866c8c2e8f59..dee7df8dd100 100644
> --- a/drivers/media/i2c/ov5670.c
> +++ b/drivers/media/i2c/ov5670.c
> @@ -2503,7 +2503,7 @@ static int ov5670_probe(struct i2c_client *client)
>         }
>  
>         /* Async register for subdev */
> -       ret = v4l2_async_register_subdev_sensor_common(&ov5670->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov5670->sd);
>         if (ret < 0) {
>                 err_msg = "v4l2_async_register_subdev() error";
>                 goto error_entity_cleanup;
> diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c
> index ae00d717e599..dea32859459a 100644
> --- a/drivers/media/i2c/ov5675.c
> +++ b/drivers/media/i2c/ov5675.c
> @@ -1193,7 +1193,7 @@ static int ov5675_probe(struct i2c_client *client)
>                 goto probe_error_v4l2_ctrl_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&ov5675->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov5675->sd);
>         if (ret < 0) {
>                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
>                         ret);
> diff --git a/drivers/media/i2c/ov5695.c b/drivers/media/i2c/ov5695.c
> index bbccb6f9582f..09bee57a241d 100644
> --- a/drivers/media/i2c/ov5695.c
> +++ b/drivers/media/i2c/ov5695.c
> @@ -1336,7 +1336,7 @@ static int ov5695_probe(struct i2c_client *client,
>                 goto err_power_off;
>  #endif
>  
> -       ret = v4l2_async_register_subdev_sensor_common(sd);
> +       ret = v4l2_async_register_subdev_sensor(sd);
>         if (ret) {
>                 dev_err(dev, "v4l2 async register subdev failed\n");
>                 goto err_clean_entity;
> diff --git a/drivers/media/i2c/ov8856.c b/drivers/media/i2c/ov8856.c
> index b337f729d5e3..e3af3ea277af 100644
> --- a/drivers/media/i2c/ov8856.c
> +++ b/drivers/media/i2c/ov8856.c
> @@ -1795,7 +1795,7 @@ static int ov8856_probe(struct i2c_client *client)
>                 goto probe_error_v4l2_ctrl_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&ov8856->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov8856->sd);
>         if (ret < 0) {
>                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
>                         ret);
> diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c
> index 2db052ff9d21..9ecf180635ee 100644
> --- a/drivers/media/i2c/ov8865.c
> +++ b/drivers/media/i2c/ov8865.c
> @@ -2904,7 +2904,7 @@ static int ov8865_probe(struct i2c_client *client)
>  
>         /* V4L2 subdev register */
>  
> -       ret = v4l2_async_register_subdev_sensor_common(subdev);
> +       ret = v4l2_async_register_subdev_sensor(subdev);
>         if (ret)
>                 goto error_pm;
>  
> diff --git a/drivers/media/i2c/ov9734.c b/drivers/media/i2c/ov9734.c
> index e212465489e8..b7309a551cae 100644
> --- a/drivers/media/i2c/ov9734.c
> +++ b/drivers/media/i2c/ov9734.c
> @@ -964,7 +964,7 @@ static int ov9734_probe(struct i2c_client *client)
>                 goto probe_error_v4l2_ctrl_handler_free;
>         }
>  
> -       ret = v4l2_async_register_subdev_sensor_common(&ov9734->sd);
> +       ret = v4l2_async_register_subdev_sensor(&ov9734->sd);
>         if (ret < 0) {
>                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
>                         ret);
> diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
> index 9c1b38919491..843259c304bb 100644
> --- a/drivers/media/v4l2-core/v4l2-fwnode.c
> +++ b/drivers/media/v4l2-core/v4l2-fwnode.c
> @@ -1308,7 +1308,7 @@ v4l2_async_notifier_parse_fwnode_sensor(struct device *dev,
>         return 0;
>  }
>  
> -int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
> +int v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd)
>  {
>         struct v4l2_async_notifier *notifier;
>         int ret;
> @@ -1347,7 +1347,7 @@ int v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd)
>  
>         return ret;
>  }
> -EXPORT_SYMBOL_GPL(v4l2_async_register_subdev_sensor_common);
> +EXPORT_SYMBOL_GPL(v4l2_async_register_subdev_sensor);
>  
>  MODULE_LICENSE("GPL");
>  MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>");
> diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
> index aee28c0e31ac..fa4901162663 100644
> --- a/include/media/v4l2-async.h
> +++ b/include/media/v4l2-async.h
> @@ -286,10 +286,10 @@ void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier);
>  int v4l2_async_register_subdev(struct v4l2_subdev *sd);
>  
>  /**
> - * v4l2_async_register_subdev_sensor_common - registers a sensor sub-device to
> - *                                           the asynchronous sub-device
> - *                                           framework and parse set up common
> - *                                           sensor related devices
> + * v4l2_async_register_subdev_sensor - registers a sensor sub-device to the
> + *                                    asynchronous sub-device framework and
> + *                                    parse set up common sensor related
> + *                                    devices
>   *
>   * @sd: pointer to struct &v4l2_subdev
>   *
> @@ -305,7 +305,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd);
>   * to register it.
>   */
>  int __must_check
> -v4l2_async_register_subdev_sensor_common(struct v4l2_subdev *sd);
> +v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd);
>  
>  /**
>   * v4l2_async_unregister_subdev - unregisters a sub-device to the asynchronous



^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-12 12:56 ` [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation Sakari Ailus
  2021-03-12 15:02   ` Niklas Söderlund
@ 2021-03-23 17:46   ` Ezequiel Garcia
  2021-03-23 19:27     ` Sakari Ailus
  1 sibling, 1 reply; 14+ messages in thread
From: Ezequiel Garcia @ 2021-03-23 17:46 UTC (permalink / raw)
  To: Sakari Ailus, linux-media; +Cc: ezequiel.garcia

On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> The V4L2 async framework is generally used with the V4L2 fwnode, which
> also depends on the former. There is only one exception, the CAFE_CCIC
> driver, which uses V4L2 async but does not need V4L2 fwnode.
> 
> At the same time there is a vast number of systems that need videodev
> module, but have no use for v4l2-async that's now part of videodev.
> 
> In order to improve, build v4l2-async and v4l2-fwnode as a single module
> called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> 

Seems this is not what this patch is doing: the symbol is not renamed,
and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless
I'm confused.

I personally was more fond of having just one v4l2-async.ko module,
but I'm not sure if you found any obstacles.

> This also moves the initialisation of the debufs entries for async subdevs
> to loading of the v4l2-async module. The directory is named as
> "v4l2-async".
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
>  drivers/media/i2c/Kconfig            |  8 ++++++++
>  drivers/media/v4l2-core/Kconfig      |  4 ++++
>  drivers/media/v4l2-core/Makefile     | 11 +++++++++--
>  drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
>  drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
>  5 files changed, 42 insertions(+), 9 deletions(-)
> 
[..]
> diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
> index e4cd589b99a5..eb5ebb5461fd 100644
> --- a/drivers/media/v4l2-core/Makefile
> +++ b/drivers/media/v4l2-core/Makefile
> @@ -7,15 +7,22 @@ tuner-objs    :=      tuner-core.o
>  
>  videodev-objs  :=      v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
>                         v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
> -                       v4l2-async.o v4l2-common.o
> +                       v4l2-common.o
>  videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
>  videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
>  videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
>  videodev-$(CONFIG_SPI) += v4l2-spi.o
>  videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
>  
> -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
>  obj-$(CONFIG_VIDEO_V4L2) += videodev.o
> +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)

Hm, to me this ifdefery is an indication that we are trying
to do something fishy.

Regards,
Ezequiel


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-23 17:46   ` Ezequiel Garcia
@ 2021-03-23 19:27     ` Sakari Ailus
  2021-03-28 13:27       ` Ezequiel Garcia
  0 siblings, 1 reply; 14+ messages in thread
From: Sakari Ailus @ 2021-03-23 19:27 UTC (permalink / raw)
  To: Ezequiel Garcia; +Cc: linux-media, ezequiel.garcia

Hi Ezequiel,

On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote:
> On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> > The V4L2 async framework is generally used with the V4L2 fwnode, which
> > also depends on the former. There is only one exception, the CAFE_CCIC
> > driver, which uses V4L2 async but does not need V4L2 fwnode.
> > 
> > At the same time there is a vast number of systems that need videodev
> > module, but have no use for v4l2-async that's now part of videodev.
> > 
> > In order to improve, build v4l2-async and v4l2-fwnode as a single module
> > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> > 
> 
> Seems this is not what this patch is doing: the symbol is not renamed,
> and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless
> I'm confused.

Oh, well, I changed what the patch does but forgot to update this. :-I

Basically this now splits v4l2-async out of videodev.

> 
> I personally was more fond of having just one v4l2-async.ko module,
> but I'm not sure if you found any obstacles.
> 
> > This also moves the initialisation of the debufs entries for async subdevs
> > to loading of the v4l2-async module. The directory is named as
> > "v4l2-async".
> > 
> > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > ---
> >  drivers/media/i2c/Kconfig            |  8 ++++++++
> >  drivers/media/v4l2-core/Kconfig      |  4 ++++
> >  drivers/media/v4l2-core/Makefile     | 11 +++++++++--
> >  drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
> >  drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
> >  5 files changed, 42 insertions(+), 9 deletions(-)
> > 
> [..]
> > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
> > index e4cd589b99a5..eb5ebb5461fd 100644
> > --- a/drivers/media/v4l2-core/Makefile
> > +++ b/drivers/media/v4l2-core/Makefile
> > @@ -7,15 +7,22 @@ tuner-objs    :=      tuner-core.o
> >  
> >  videodev-objs  :=      v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
> >                         v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
> > -                       v4l2-async.o v4l2-common.o
> > +                       v4l2-common.o
> >  videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
> >  videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
> >  videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
> >  videodev-$(CONFIG_SPI) += v4l2-spi.o
> >  videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
> >  
> > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
> >  obj-$(CONFIG_VIDEO_V4L2) += videodev.o
> > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
> 
> Hm, to me this ifdefery is an indication that we are trying
> to do something fishy.

What's happening here is that v4l2-fwnode depends on v4l2-async, but for
drivers to avoid selecting both, v4l2-async is built if only
CONFIG_V4L2_FWNODE is set.

So this perhaps isn't too pretty but it saves hassle in Kconfig files.

-- 
Kind regards,

Sakari Ailus

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-23 19:27     ` Sakari Ailus
@ 2021-03-28 13:27       ` Ezequiel Garcia
  2021-04-30  7:03         ` Sakari Ailus
  0 siblings, 1 reply; 14+ messages in thread
From: Ezequiel Garcia @ 2021-03-28 13:27 UTC (permalink / raw)
  To: Sakari Ailus; +Cc: linux-media, ezequiel.garcia

On Tue, 2021-03-23 at 21:27 +0200, Sakari Ailus wrote:
> Hi Ezequiel,
> 
> On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote:
> > On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> > > The V4L2 async framework is generally used with the V4L2 fwnode, which
> > > also depends on the former. There is only one exception, the CAFE_CCIC
> > > driver, which uses V4L2 async but does not need V4L2 fwnode.
> > > 
> > > At the same time there is a vast number of systems that need videodev
> > > module, but have no use for v4l2-async that's now part of videodev.
> > > 
> > > In order to improve, build v4l2-async and v4l2-fwnode as a single module
> > > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> > > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> > > 
> > 
> > Seems this is not what this patch is doing: the symbol is not renamed,
> > and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless
> > I'm confused.
> 
> Oh, well, I changed what the patch does but forgot to update this. :-I
> 
> Basically this now splits v4l2-async out of videodev.
> 
> > 
> > I personally was more fond of having just one v4l2-async.ko module,
> > but I'm not sure if you found any obstacles.
> > 
> > > This also moves the initialisation of the debufs entries for async subdevs
> > > to loading of the v4l2-async module. The directory is named as
> > > "v4l2-async".
> > > 
> > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > ---
> > >  drivers/media/i2c/Kconfig            |  8 ++++++++
> > >  drivers/media/v4l2-core/Kconfig      |  4 ++++
> > >  drivers/media/v4l2-core/Makefile     | 11 +++++++++--
> > >  drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
> > >  drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
> > >  5 files changed, 42 insertions(+), 9 deletions(-)
> > > 
> > [..]
> > > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
> > > index e4cd589b99a5..eb5ebb5461fd 100644
> > > --- a/drivers/media/v4l2-core/Makefile
> > > +++ b/drivers/media/v4l2-core/Makefile
> > > @@ -7,15 +7,22 @@ tuner-objs    :=      tuner-core.o
> > >  
> > >  videodev-objs  :=      v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
> > >                         v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
> > > -                       v4l2-async.o v4l2-common.o
> > > +                       v4l2-common.o
> > >  videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
> > >  videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
> > >  videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
> > >  videodev-$(CONFIG_SPI) += v4l2-spi.o
> > >  videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
> > >  
> > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
> > >  obj-$(CONFIG_VIDEO_V4L2) += videodev.o
> > > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
> > 
> > Hm, to me this ifdefery is an indication that we are trying
> > to do something fishy.
> 
> What's happening here is that v4l2-fwnode depends on v4l2-async, but for
> drivers to avoid selecting both, v4l2-async is built if only
> CONFIG_V4L2_FWNODE is set.
> 
> So this perhaps isn't too pretty but it saves hassle in Kconfig files.
> 

How about:

v4l2-async-objs := v4l2-async-core.o
v4l2-async-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
obj-$(CONFIG_V4L2_ASYNC) += v4l2-async.o

config V4L2_FWNODE
        bool
        select V4L2_ASYNC

config V4L2_ASYNC
        tristate

This avoids the ifdefs and expresses the same behavior
you stated above:

* v4l2-async is now out of videodev
* v4l2-fwnode depends on v4l2-async (through select in this case,
  given they are helper modules).
* v4l2-async is built if CONFIG_V4L2_FWNODE is set.

And v4l2-async is a module or built-in, depending on the
media subsystem (MEDIA_SUPPORT) being module or built-in,
which I think makes sense.

Thanks,
Ezequiel


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation
  2021-03-28 13:27       ` Ezequiel Garcia
@ 2021-04-30  7:03         ` Sakari Ailus
  0 siblings, 0 replies; 14+ messages in thread
From: Sakari Ailus @ 2021-04-30  7:03 UTC (permalink / raw)
  To: Ezequiel Garcia; +Cc: linux-media, ezequiel.garcia

Hi Ezequiel,

On Sun, Mar 28, 2021 at 10:27:35AM -0300, Ezequiel Garcia wrote:
> On Tue, 2021-03-23 at 21:27 +0200, Sakari Ailus wrote:
> > Hi Ezequiel,
> > 
> > On Tue, Mar 23, 2021 at 02:46:04PM -0300, Ezequiel Garcia wrote:
> > > On Fri, 2021-03-12 at 14:56 +0200, Sakari Ailus wrote:
> > > > The V4L2 async framework is generally used with the V4L2 fwnode, which
> > > > also depends on the former. There is only one exception, the CAFE_CCIC
> > > > driver, which uses V4L2 async but does not need V4L2 fwnode.
> > > > 
> > > > At the same time there is a vast number of systems that need videodev
> > > > module, but have no use for v4l2-async that's now part of videodev.
> > > > 
> > > > In order to improve, build v4l2-async and v4l2-fwnode as a single module
> > > > called v4l2-async (the v4l2-async.c file is renamed as v4l2-async-core.c).
> > > > Also the menu item V4L2_FWNODE is renamed as V4L2_ASYNC.
> > > > 
> > > 
> > > Seems this is not what this patch is doing: the symbol is not renamed,
> > > and now we have two modules v4l2-fwnode.ko and v4l2-async.ko, unless
> > > I'm confused.
> > 
> > Oh, well, I changed what the patch does but forgot to update this. :-I
> > 
> > Basically this now splits v4l2-async out of videodev.
> > 
> > > 
> > > I personally was more fond of having just one v4l2-async.ko module,
> > > but I'm not sure if you found any obstacles.
> > > 
> > > > This also moves the initialisation of the debufs entries for async subdevs
> > > > to loading of the v4l2-async module. The directory is named as
> > > > "v4l2-async".
> > > > 
> > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > ---
> > > >  drivers/media/i2c/Kconfig            |  8 ++++++++
> > > >  drivers/media/v4l2-core/Kconfig      |  4 ++++
> > > >  drivers/media/v4l2-core/Makefile     | 11 +++++++++--
> > > >  drivers/media/v4l2-core/v4l2-async.c | 23 +++++++++++++++++++++--
> > > >  drivers/media/v4l2-core/v4l2-dev.c   |  5 -----
> > > >  5 files changed, 42 insertions(+), 9 deletions(-)
> > > > 
> > > [..]
> > > > diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
> > > > index e4cd589b99a5..eb5ebb5461fd 100644
> > > > --- a/drivers/media/v4l2-core/Makefile
> > > > +++ b/drivers/media/v4l2-core/Makefile
> > > > @@ -7,15 +7,22 @@ tuner-objs    :=      tuner-core.o
> > > >  
> > > >  videodev-objs  :=      v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
> > > >                         v4l2-event.o v4l2-ctrls.o v4l2-subdev.o \
> > > > -                       v4l2-async.o v4l2-common.o
> > > > +                       v4l2-common.o
> > > >  videodev-$(CONFIG_COMPAT) += v4l2-compat-ioctl32.o
> > > >  videodev-$(CONFIG_TRACEPOINTS) += v4l2-trace.o
> > > >  videodev-$(CONFIG_MEDIA_CONTROLLER) += v4l2-mc.o
> > > >  videodev-$(CONFIG_SPI) += v4l2-spi.o
> > > >  videodev-$(CONFIG_VIDEO_V4L2_I2C) += v4l2-i2c.o
> > > >  
> > > > -obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
> > > >  obj-$(CONFIG_VIDEO_V4L2) += videodev.o
> > > > +ifneq ($(findstring y,$(CONFIG_V4L2_ASYNC)$(CONFIG_V4L2_FWNODE)),)
> > > 
> > > Hm, to me this ifdefery is an indication that we are trying
> > > to do something fishy.
> > 
> > What's happening here is that v4l2-fwnode depends on v4l2-async, but for
> > drivers to avoid selecting both, v4l2-async is built if only
> > CONFIG_V4L2_FWNODE is set.
> > 
> > So this perhaps isn't too pretty but it saves hassle in Kconfig files.
> > 
> 
> How about:
> 
> v4l2-async-objs := v4l2-async-core.o
> v4l2-async-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
> obj-$(CONFIG_V4L2_ASYNC) += v4l2-async.o
> 
> config V4L2_FWNODE
>         bool
>         select V4L2_ASYNC

Drivers are using select to enable V4L2_FWNODE. Select will select the
config option but will not care about its dependencies, i.e. V4L2_ASYNC in
this case.

I guess another option could be just to sprinkle both in Kconfig files as
needed.

I'm fraknkly not too concerned about the few lines in the Makefile. If
there's a need to get rid of them, there's always an easy way to get rid of
it.

> 
> config V4L2_ASYNC
>         tristate
> 
> This avoids the ifdefs and expresses the same behavior
> you stated above:
> 
> * v4l2-async is now out of videodev
> * v4l2-fwnode depends on v4l2-async (through select in this case,
>   given they are helper modules).
> * v4l2-async is built if CONFIG_V4L2_FWNODE is set.
> 
> And v4l2-async is a module or built-in, depending on the
> media subsystem (MEDIA_SUPPORT) being module or built-in,
> which I think makes sense.

-- 
Kind regards,

Sakari Ailus

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2021-04-30  7:03 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-12 12:56 [PATCH v2 0/4] Knead V4L2 async and fwnode frameworks a little Sakari Ailus
2021-03-12 12:56 ` [PATCH v2 1/4] v4l: fwnode: Rename and make static V4L2 async notifier helper Sakari Ailus
2021-03-23 16:18   ` Ezequiel Garcia
2021-03-12 12:56 ` [PATCH v2 2/4] v4l: fwnode: Rename v4l2_async_register_subdev_sensor_common Sakari Ailus
2021-03-23 16:56   ` Ezequiel Garcia
2021-03-12 12:56 ` [PATCH v2 3/4] v4l: async: Wrap long lines, remove '(' at the end of lines Sakari Ailus
2021-03-22 11:19   ` [PATCH v2.1 1/1] " Sakari Ailus
2021-03-12 12:56 ` [PATCH v2 4/4] v4l: async, fwnode: Improve module organisation Sakari Ailus
2021-03-12 15:02   ` Niklas Söderlund
2021-03-12 15:31     ` Sakari Ailus
2021-03-23 17:46   ` Ezequiel Garcia
2021-03-23 19:27     ` Sakari Ailus
2021-03-28 13:27       ` Ezequiel Garcia
2021-04-30  7:03         ` Sakari Ailus

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