TPS68470 missing board-data for MSI Prestige 14 AI+ Evo (Lunar Lake, OV5675)

[ozlem-wq]

System Information

• Model: MSI Prestige 14 AI+ Evo C2VMG
• Manufacturer: Micro-Star International Co., Ltd.
• BIOS: E14N3IMS.106
• Kernel: 6.18.4-200.fc43.x86_64 (Fedora 43)
• Camera Sensor: OV5675 (ACPI: OVTI5675:00)
• Power Controller: TPS68470 (ACPI: INT3472:06)
• IPU: Intel IPU7 (0x645d)

Problem

Camera does not work. TPS68470 PMIC is detected but fails due to missing board-data:
[ 4.590999] int3472-tps68470 i2c-INT3472:06: TPS68470 REVID: 0x21
[ 4.591044] int3472-tps68470 i2c-INT3472:06: error -ENODEV: No board-data found for this model

ACPI Camera Devices

• INT3472:00 - INT3472:0b (12 power controllers)
• OVTI5675:00 (main camera - OV5675)
• OVTI13B1:00 (OV13B10)
• OVTI01AF:00/01/02 (OV01AF)

IPU7 Status

IPU7 loads successfully:
[ 4.671461] intel-ipu7 0000:00:05.0: Device 0x645d (rev: 0x4)
[ 4.793292] intel-ipu7 0000:00:05.0: CSE authenticate_run done

Request

Please add TPS68470 board-data for MSI Prestige 14 AI+ Evo to enable camera support.

Additional Technical Details

I2C Bus Info:

• TPS68470 is on i2c-1 (i2c-INT3472:06)
• Physical node: /sys/bus/acpi/devices/INT3472:06/physical_node -> pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-INT3472:06

Sensor ACPI Info:

• OVTI5675:00 status: 15 (enabled)
• OVTI5675:00 path: \_SB_.LNK0

I2C Scan Result (bus 1):
No devices detected at expected OV5675 address (0x36) because TPS68470 cannot power the sensor.

Kernel Config (all modules enabled):

• CONFIG_VIDEO_INTEL_IPU7=m ✓
• CONFIG_INTEL_SKL_INT3472=m ✓
• CONFIG_VIDEO_OV5675=m ✓

Loaded Modules:

• intel_skl_int3472_tps68470 ✓
• tps68470_regulator ✓
• clk_tps68470 ✓

CC: @jwrdegoede @pnndra @AlexxNica

[jwrdegoede]

Solving this unfortunately is quite involved, see my long comment about the same issue on another laptop model here: https://bugzilla.redhat.com/show_bug.cgi?id=2344673#c10