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| author | Hans de Goede <hdegoede@redhat.com> | 2025-06-23 13:00:34 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2025-06-30 09:06:21 +0200 |
| commit | fabb0595b58f8c288017816eee5fe8aed4a4dfef (patch) | |
| tree | 6e043230125344e484cf65723746016b3b4d5f6c | |
| parent | 826f6fd67691861b3dc2cbbd1ea7c8bbb5bfe1b2 (diff) | |
media: ov8865: Improve error logging when fwnode is not found
The ov8865 driver waits for the endpoint fwnode to show up in case this
fwnode is created by a bridge-driver.
It does this by returning -EPROBE_DEFER, but it does not use
dev_err_probe() so no reason for deferring gets registered.
After 30 seconds the kernel logs a warning that the probe is still
deferred, which looks like this:
[ 33.952061] i2c i2c-INT347A:00: deferred probe pending: (reason unknown)
Use dev_err_probe() when returning -EPROBE_DEFER to register the probe
deferral reason changing the error to:
deferred probe pending: waiting for fwnode graph endpoint
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
| -rw-r--r-- | drivers/media/i2c/ov8865.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/i2c/ov8865.c b/drivers/media/i2c/ov8865.c index 95ffe7536aa6..a2138f7988aa 100644 --- a/drivers/media/i2c/ov8865.c +++ b/drivers/media/i2c/ov8865.c @@ -2991,7 +2991,8 @@ static int ov8865_probe(struct i2c_client *client) handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); if (!handle) - return -EPROBE_DEFER; + return dev_err_probe(dev, -EPROBE_DEFER, + "waiting for fwnode graph endpoint\n"); sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY; |