Re: [PATCH 2/2] platform/x86: int3472: Handle GPIO types 0x02 and 0x12 for Lunar Lake

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Sun, Apr 05, 2026 at 12:32:36AM +0530, Vasu wrote:

> Intel Lunar Lake platforms (Core Ultra 200V series) use two GPIO types
> in their INT3472 ACPI tables that are not handled by the discrete driver:
> 
>   - Type 0x02: Strobe GPIO, used for IR LED/flash control. Map to sensor.
>   - Type 0x12: AVDD/sensor-supply GPIO, used on Lunar Lake to control
>     sensor power. Treat like RESET/POWERDOWN and map to sensor.
> 
> Without these handlers the driver logs:
> 
>   int3472-discrete INT3472:00: GPIO type 0x02 unknown; the sensor may not work
>   int3472-discrete INT3472:00: GPIO type 0x12 unknown; the sensor may not work
> 
> Type 0x12 handling was confirmed by inspecting the OEM kernel module for
> Ubuntu 24.04 (6.11.0-1016-oem) which handles this type by mapping it
> directly to the sensor via skl_int3472_fill_gpiod_lookup().
> 
> Tested on: Dell Pro 14 Premium PA14250, Intel Core Ultra 7 266V
>            (Lunar Lake), Ubuntu 24.04, kernel 6.11.0-1016-oem
>            Camera confirmed working at 1280x720 30fps after fix.

STROBE is about to be added by another series. The 0x12 needs a proper define.

-- 
With Best Regards,
Andy Shevchenko