diff options
| author | Ezequiel Garcia <ezequiel@collabora.com> | 2021-01-18 02:52:49 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-02-06 08:43:02 +0100 |
| commit | 5bbefdefe8a6927e0cdf68bf02f677e06ccc32b6 (patch) | |
| tree | 4496152ad583489602053a7ec4a72b9d7f0dab5b /drivers/media/i2c/st-mipid02.c | |
| parent | 3a2822bfe45c50abd9f76a8547a77a1f6a0e8c8d (diff) | |
media: st-mipid02: Use v4l2_async_notifier_add_fwnode_remote_subdev
The use of v4l2_async_notifier_add_subdev will be discouraged.
Drivers are instead encouraged to use a helper such as
v4l2_async_notifier_add_fwnode_remote_subdev.
This fixes a misuse of the API, as v4l2_async_notifier_add_subdev
should get a kmalloc'ed struct v4l2_async_subdev,
removing some boilerplate code while at it.
Use the appropriate helper v4l2_async_notifier_add_fwnode_remote_subdev,
which handles the needed setup, instead of open-coding it.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/i2c/st-mipid02.c')
| -rw-r--r-- | drivers/media/i2c/st-mipid02.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c index 003ba22334cd..bb32a5278a4e 100644 --- a/drivers/media/i2c/st-mipid02.c +++ b/drivers/media/i2c/st-mipid02.c @@ -92,7 +92,6 @@ struct mipid02_dev { u64 link_frequency; struct v4l2_fwnode_endpoint tx; /* remote source */ - struct v4l2_async_subdev asd; struct v4l2_async_notifier notifier; struct v4l2_subdev *s_subdev; /* registers */ @@ -844,6 +843,7 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge) { struct v4l2_fwnode_endpoint ep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; struct i2c_client *client = bridge->i2c_client; + struct v4l2_async_subdev *asd; struct device_node *ep_node; int ret; @@ -875,18 +875,17 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge) bridge->rx = ep; /* register async notifier so we get noticed when sensor is connected */ - bridge->asd.match.fwnode = - fwnode_graph_get_remote_port_parent(of_fwnode_handle(ep_node)); - bridge->asd.match_type = V4L2_ASYNC_MATCH_FWNODE; + v4l2_async_notifier_init(&bridge->notifier); + asd = v4l2_async_notifier_add_fwnode_remote_subdev( + &bridge->notifier, + of_fwnode_handle(ep_node), + sizeof(*asd)); of_node_put(ep_node); - v4l2_async_notifier_init(&bridge->notifier); - ret = v4l2_async_notifier_add_subdev(&bridge->notifier, &bridge->asd); - if (ret) { - dev_err(&client->dev, "fail to register asd to notifier %d", - ret); - fwnode_handle_put(bridge->asd.match.fwnode); - return ret; + if (IS_ERR(asd)) { + dev_err(&client->dev, "fail to register asd to notifier %ld", + PTR_ERR(asd)); + return PTR_ERR(asd); } bridge->notifier.ops = &mipid02_notifier_ops; |