OVTI08F4:00 sensor not in media graph

[Juliusz Chroboczek <jch@irif.fr>]

Hello,

This has been reported at

    <https://gitlab.freedesktop.org/camera/libcamera/-/issues/318>

A kind gentleman there recommended that I contact linux-media.  Since I am
not subscribed, please CC me with any followups.

Dell Pro Max 14 Premium MA14250 laptop (Arrow Lake CPU), Debian testing,
kernel 6.18.9+deb14-amd64, libcamera 0.7.0-2.

The camera appears to be recognised by the kernel:

    $ sudo dmesg | grep -i ipu
    [    0.004960] ACPI: SSDT 0x0000000051FDB000 0000F9 (v02 INTEL  IpuSsdt  00001000 INTL 20210930)
    [    6.716232] intel-ipu6 0000:00:05.0: enabling device (0000 -> 0002)
    [    6.731807] intel-ipu6 0000:00:05.0: Found supported sensor OVTI08F4:00
    [    6.731872] intel-ipu6 0000:00:05.0: Connected 1 cameras
    [    6.734633] intel-ipu6 0000:00:05.0: Sending BOOT_LOAD to CSE
    [    6.774011] intel-ipu6 0000:00:05.0: Sending AUTHENTICATE_RUN to CSE
    [    6.822558] intel-ipu6 0000:00:05.0: CSE authenticate_run done
    [    6.822568] intel-ipu6 0000:00:05.0: IPU6-v4[7d19] hardware version 6

However, libcamera complains that it cannot find a sensor:

     $ cam -l
     [1:56:27.699418955] [20417]  INFO Camera camera_manager.cpp:340 libcamera v0.7.0
     [1:56:27.724735682] [20420]  INFO SimplePipeline simple.cpp:1899 No sensor found for /dev/media0
     Available cameras:

Running "media-ctl -d /dev/media0 -p" indicates that the sensor is not in
the media graph:

    https://gitlab.freedesktop.org/camera/libcamera/-/issues/318#note_3342927

Please let me know if any further information would be useful.

Thanks for your help,

-- Juliusz