[PATCH v11 0/9] Enable cameras on Dell Latitude 5285 2-in-1

[Thierry Chatard <tchatard@gmail.com>]

This series enables the front (OV5670/INT3479) and rear (OV8858/INT3477)
cameras on the Dell Latitude 5285 2-in-1 under Linux.

Per Documentation/process/coding-assistants.rst, every patch carries an
Assisted-by tag; this work was developed with help from an AI coding
assistant. I have reviewed and tested it on the hardware and take
responsibility for the result.

The series is interdependent and touches three subsystems:
  - mfd:          patches 1-2 (intel-lpss resource-conflict quirk)
  - platform/x86: patches 3-7 (int3472/tps68470)
  - media:        patches 8-9 (ipu-bridge, ov8858)
Per Sakari's suggestion it is probably best merged as one set - e.g. the
mfd/platform-drivers-x86 patches via one tree with an immutable branch that
the media tree can pull. Lee, an Acked-by on the mfd patches (1-2) would
help enable that; I'm happy to follow whichever approach the maintainers
prefer.

Patch 2 (from D. Manresa) extends the intel-lpss quirk to the Dell Latitude
7275, which has the same BIOS bug; it is carried here at the maintainers'
request. The companion 7275 board-data patch is posted separately by
D. Manresa.

Changes since v10:
- New patch 2 (D. Manresa): add the Dell Latitude 7275 to the intel-lpss
  resource-conflict quirk (Reviewed-by: Hans de Goede, Sakari Ailus).
- Patch 9 (ov8858): use ACPI_PTR() for the ACPI match table (Sakari).
- Collected Reviewed-by tags: Andy Shevchenko on patches 1, 7 and 8.
- Patch 5 (static clock consumer): kept the inline if/else as-is, per
  Sakari (Andy had suggested a helper).

Earlier changelogs are in the v10 posting:
  https://lore.kernel.org/all/20260831160754.9857-1-tchatard@gmail.com/

Tested on Ubuntu 25.10 (kernel 6.17.0-22-generic) and Ubuntu 26.04 (kernel
7.0.0-31-generic): both cameras working in Zoom, Chrome, and GNOME Camera
via PipeWire. Also independently tested on the closely-related Dell Latitude
5290 2-in-1 by Vitalii Tytskyi:
  https://github.com/vitovt/dell-5290-camera-kernel/tree/master/patches

D. Manresa (1):
  mfd: intel-lpss: add Dell Latitude 7275 to the resource conflict quirk

Thierry Chatard (8):
  mfd: intel-lpss: add resource conflict quirk for Dell Latitude 5285
  platform/x86: int3472: tps68470: use unsigned int for GPIO lookup loop
    counters
  platform/x86: int3472: tps68470: move Windows MFD setup below the
    device-type switch
  platform/x86: int3472: tps68470: add static clock consumer support
  platform/x86: int3472: tps68470: use a common always-on VIO regulator
    init_data
  platform/x86: int3472: tps68470: add board data for Dell Latitude 5285
  media: ipu-bridge: add sensor configuration for OV8858 (INT3477)
  media: ov8858: add ACPI device ID INT3477

 drivers/media/i2c/ov8858.c                    |   8 +
 drivers/media/pci/intel/ipu-bridge.c          |   2 +
 drivers/mfd/intel-lpss-acpi.c                 |  38 ++++
 drivers/platform/x86/intel/int3472/tps68470.c | 116 ++++++-----
 drivers/platform/x86/intel/int3472/tps68470.h |   8 +
 .../x86/intel/int3472/tps68470_board_data.c   | 181 ++++++++++++++++--
 6 files changed, 290 insertions(+), 63 deletions(-)


base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
-- 
2.53.0