Same issue on the 14" sibling model: Dell 14 Premium DA14250 (Meteor
Lake, IPU6-v4 [7d19]), kernel 7.0.0-14-generic.
Symptom here is slightly worse than described above: on 7.0.0-14 the
ov02c10 sensor never enumerates at all — no i2c-OVTI02C1:00 client is
instantiated, the ov02c10 module binds nothing, and media-ctl -p shows
only bare IPU6 CSI2/Capture entities with no sensor. On
6.17.0-35-generic the sensor did bind and was linked into the media
graph, so this is a regression. The "intel-ipu6: Found supported sensor
OVTI02C1:00 / Connected 1 cameras" line still appears, but that's just
ipu-bridge parsing ACPI, not a probe.
Root cause for the missing enumeration (from decompiled DSDT): the
sensor device \_SB.PC00.LNK1 (OVTI02C1) has _DEP = { \_SB.PC00.CVSS,
\_SB.PC00.XHCI.RHUB.HS09.VIC1 }. CVSS is the Intel CVS chip (INTC10E0);
its i2c client exists but nothing in the kernel binds it (intel_cvs is
out-of-tree only, github.com/intel/vision-drivers), so
acpi_dev_clear_dependencies() is never called for it and i2c-core-acpi
never creates the sensor client. The USBIO i2c adapters
(INTC10B3/VIC0/VIC1, Lattice 2ac1:20c9) register fine. Unbind/rebind of
the usbio-bridge interface re-registers all adapters but still no sensor
client, so it's not a probe-ordering race.
On top of that, this machine logs the same two warnings already discussed here:
int3472-discrete INT3472:0c: GPIO type 0x02 unknown; the sensor may not work
gpio_usbio.usbio-gpio usbio.usbio-gpio.0: [Firmware Bug]: GPIO 4 is not in FW
pins bitmap
So for the DA14250 (and presumably the DA16250) it looks like two fixes
are needed: the strobe GPIO (type 0x02) int3472 support, plus handling
of the INTC10E0 CVS _DEP (ignore-dep entry or an in-tree intel_cvs
driver) so the sensor enumerates at all.
Attaching: dmesg, media-ctl -p, i2c/sysfs state, and the decompiled LNK1
ACPI excerpt showing the _DEP.
** Attachment added: "full dmesg from boot, 7.0.0-14-generic, Dell 14 Premium
DA14250"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2138991/+attachment/5975960/+files/dmesg-full.txt
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https://bugs.launchpad.net/bugs/2138991
Title:
Dell 16 Premium DA16250 webcam (OV02C10) not working - INT3472 GPIO
type 0x02 unknown
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