IMXRT1050 pinctrl driver

modulename: pinctrl-imxrt1050.ko

configname: CONFIG_PINCTRL_IMXRT1050

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>IMXRT1050 pinctrl driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Say Y here to enable the imxrt1050 pinctrl driver

source code: