[PATCH v5 1/8] media: v4l2-fwnode: Extract common helper __v4l2_async_register_subdev_fwnode()

[Frank.Li@oss.nxp.com]

From: Frank Li <Frank.Li@nxp.com>

Extract __v4l2_async_register_subdev_fwnode() from
__media_async_register_subdev_1to1() and make the notifier parsing
function a parameter.

This prepares for future support of v4l2_async_register_subdev_1to1() by
allowing different fwnode parsing implementations to reuse the common
registration logic.

No functional change intended.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
change in v5:
- new patch
---
 drivers/media/v4l2-core/v4l2-fwnode.c | 17 ++++++++++++++---
 include/media/v4l2-async.h            |  6 ++++++
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 62a3a452f7884..f32dbf5bc8344 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -1256,7 +1256,11 @@ v4l2_async_nf_parse_fwnode_sensor(struct device *dev,
 	return 0;
 }
 
-int __v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd, struct module *module)
+int
+__v4l2_async_register_subdev_fwnode(struct v4l2_subdev *sd,
+				    int (*parse_fwnode)(struct device *dev,
+							struct v4l2_async_notifier *notifier),
+				    struct module *module)
 {
 	struct v4l2_async_notifier *notifier;
 	int ret;
@@ -1274,7 +1278,7 @@ int __v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd, struct module *m
 	if (ret < 0)
 		goto out_cleanup;
 
-	ret = v4l2_async_nf_parse_fwnode_sensor(sd->dev, notifier);
+	ret = parse_fwnode(sd->dev, notifier);
 	if (ret < 0)
 		goto out_cleanup;
 
@@ -1300,8 +1304,15 @@ int __v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd, struct module *m
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_register_subdev_sensor);
+EXPORT_SYMBOL_GPL(__v4l2_async_register_subdev_fwnode);
 
+int
+__v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd, struct module *module)
+{
+	return __v4l2_async_register_subdev_fwnode(sd, v4l2_async_nf_parse_fwnode_sensor,
+						   module);
+}
+EXPORT_SYMBOL_GPL(__v4l2_async_register_subdev_sensor);
 MODULE_DESCRIPTION("V4L2 fwnode binding parsing library");
 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 54a2d9620ed5b..a9345fb921b43 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -338,6 +338,12 @@ int __v4l2_async_register_subdev(struct v4l2_subdev *sd, struct module *module);
 int __must_check
 __v4l2_async_register_subdev_sensor(struct v4l2_subdev *sd, struct module *module);
 
+int __must_check
+__v4l2_async_register_subdev_fwnode(struct v4l2_subdev *sd,
+				    int (*parse_fwnode)(struct device *dev,
+							struct v4l2_async_notifier *notifier),
+				    struct module *module);
+
 /**
  * v4l2_async_unregister_subdev - unregisters a sub-device to the asynchronous
  *	subdevice framework

-- 
2.43.0