[SRU][PATCH] usbio: bind Dell MTL-CVF ACPI GPIO and I2C nodes
Vojin Jovanovic
vojin.jovanovic at oracle.com
Sun May 24 21:35:01 UTC 2026
Confidential - Oracle Restricted \Including External Recipients
Please consider the attached USBIO backport candidate for Ubuntu's
`intel-usbio-dkms_0~git202510282139.ee221eca-0ubuntu1` / `7.0.0-15-generic`
camera stack.
Launchpad BugLink:
```text
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2154140
```
The patch fixes a Dell Latitude 7450 internal IPU6 MIPI camera failure where
USBIO GPIO/I2C auxiliary devices are not associated with the platform MTL-CVF
ACPI nodes:
- `INTC10D1` / `VGPO` for GPIO
- `INTC10D2` / `VIC0`, `VIC1` for I2C
Observed failure before the fix:
```text
int3472-discrete INT3472:01: cannot find GPIO chip INTC10D1:00, deferring
ov02e10 i2c-OVTI02E1:00: failed to find sensor: -6
```
The reduced patch:
- adds `INTC10D1` and `INTC10D2` to the USBIO ACPI HID tables,
- sets the USBIO GPIO chip fwnode for ACPI GPIO lookup,
- scopes USBIO ACPI matching to the current USBIO device's parent device chain,
avoiding global ACPI HID fallback.
With the reduced USBIO binding and the already-present OV02E10/INT3472 power
support, the camera probes, the `ov02e10` media entity appears, and
`/dev/video0` streams usable `1280x960` video.
Confidential - Oracle Restricted \Including External Recipients
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