breeze/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-01-25 15:03:52 +08:00
Code Issues Packages Projects Releases Wiki Activity

media: i2c: Defer ov5670_probe() if endpoint not found

Browse Source 
The OV5670 is found on a Dell 7212, coupled to Intel's CIO2 CSI-2
receiver. The ACPI tables don't describe the connection properly and
so this is one of the sensors that needs to wait for the ipu-bridge
to set up the graph with software nodes. Defer probe if an endpoint
isn't found to allow time for that.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Daniel Scally
2025-05-20 14:17:44 +01:00
committed by Hans Verkuil
parent 3c607baf68
commit 4e89c74735
1 changed files with 7 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/media/i2c/ov5670.c
View File

@@ -2688,10 +2688,15 @@ static int ov5670_probe(struct i2c_client *client)
if (ret)
return dev_err_probe(&client->dev, ret, "GPIO probe failed\n");
/* Graph Endpoint */
/*
* Graph Endpoint. If it's missing we defer rather than fail, as this
* sensor is known to co-exist on systems with the IPU3 and so it might
* be created by the ipu-bridge.
*/
handle = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL);
if (!handle)
return dev_err_probe(&client->dev, -ENXIO, "Endpoint for node get failed\n");
return dev_err_probe(&client->dev, -EPROBE_DEFER,
"Endpoint for node get failed\n");
ov5670->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY;
ov5670->endpoint.bus.mipi_csi2.num_data_lanes = 2;