Re: [PATCH] media: ipu-bridge: Add upside-down sensor quirk for Dell 16 Premium DA16250

[Sakari Ailus]

Hi Lukas,

On Fri, Apr 03, 2026 at 11:02:54PM +0200, Lukas Larson wrote:
> Hi Sakari,
> 
> When testing on sailus/media_tree pld I could not get the camera to power
> on.
> Not well versed in the stack so perhaps that is a totally separate issue.
> 
> sudo dmesg | grep -e ov02 -e 0000:00:05 -e sailus -e ovti
> [    0.345193] pci 0000:00:05.0: [8086:7d19] type 00 class 0x048000 PCIe
> Root Complex Integrated Endpoint
> [    0.345207] pci 0000:00:05.0: BAR 0 [mem 0x622c000000-0x622cffffff 64bit]
> [    0.345212] pci 0000:00:05.0: enabling Extended Tags
> [    0.424651] pci 0000:00:05.0: Adding to iommu group 4
> [    6.887487] intel-ipu6 0000:00:05.0: enabling device (0000 -> 0002)
> [    6.892671] acpi OVTI02C1:00: ipu-bridge media running sailus custom
> media_tree
> [    6.894955] intel-ipu6 0000:00:05.0: Found supported sensor OVTI02C1:00
> [    6.895027] intel-ipu6 0000:00:05.0: Connected 1 cameras
> [    6.896600] intel-ipu6 0000:00:05.0: Sending BOOT_LOAD to CSE
> [    6.933436] intel-ipu6 0000:00:05.0: Sending AUTHENTICATE_RUN to CSE
> [    6.982574] intel-ipu6 0000:00:05.0: CSE authenticate_run done
> [    6.982583] intel-ipu6 0000:00:05.0: IPU6-v4[7d19] hardware version 6
> [    7.158144] ov02c10 i2c-OVTI02C1:00: supply dovdd not found, using dummy
> regulator
> [    7.158169] ov02c10 i2c-OVTI02C1:00: supply avdd not found, using dummy
> regulator
> [    7.158173] ov02c10 i2c-OVTI02C1:00: supply dvdd not found, using dummy
> regulator
> [    7.159480] ov02c10 i2c-OVTI02C1:00: Error reading reg 0x300a: -121
> [    7.159495] ov02c10 i2c-OVTI02C1:00: failed to find sensor: -121
> [    7.159539] ov02c10 i2c-OVTI02C1:00: probe with driver ov02c10 failed
> with error -121

There seems to be another problem here. :-(

> 
> Then tested applying just the "Prioritise _PLD over SSDB in rotationpld"
> change on v6.19,
> but without all the related changes to v4l2, both ssdb->degree and
> pld->rotation were 0,
> and image still flipped. Guessing not much useful info, sorry, appreciate
> your work on this.

You'll also need at least another patch, "media: v4l: fwnode: Support
ACPI's _PLD for v4l2_fwnode_device_parse", in order for this to work. I've
rebased the patches on plain v6.19 and pushed that to the pld branch. Would
you be able to test this again?

-- 
Kind regards,

Sakari Ailus