media: ipu3-cio2: support multiple sensors and VCMs with same HID

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In current cio2-bridge, it is using the hid name to register software
node and software node will create kobject and sysfs entry according to
the node name, if there are multiple sensors and VCMs which are sharing
same HID name, it will cause the software nodes registration failure:

sysfs: cannot create duplicate filename '/kernel/software_nodes/dw9714'
...
Call Trace:
software_node_register_nodes
cio2_bridge_init
...
kobject_add_internal failed for dw9714 with -EEXIST,
don't try to register things with the same name in the same directory.

One solution is appending the sensor link(Mipi Port) in SSDB as suffix
of the node name to fix this problem.

Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

...

This commit is contained in:

Bingbu Cao 2023-03-10 23:19:10 +08:00 • committed by Hans Verkuil

parent bd5a03bc5b

commit 567f97bd38

2 changed files with 13 additions and 5 deletions

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15

drivers/media/pci/intel/ipu3/cio2-bridge.c

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3

drivers/media/pci/intel/ipu3/cio2-bridge.h

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