default or selected kernelversion does not have config value CONFIG_HTC_PASIC3.
Result is shown for kernelversion 6.9.9

HTC PASIC3 LED/DS1WM chip support

modulename: htc-pasic3.ko

configname: CONFIG_HTC_PASIC3

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>HTC PASIC3 LED/DS1WM chip support
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
This core driver provides register access for the LED/DS1WM
chips labeled "AIC2" and "AIC3", found on HTC Blueangel and
HTC Magician devices, respectively. Actual functionality is
handled by the leds-pasic3 and ds1wm drivers.

source code: