Meson a1 Soc pinctrl driver

modulename: pinctrl-meson-a1.ko

configname: CONFIG_PINCTRL_MESON_A1

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>Amlogic SoC pinctrl drivers
└─>Meson a1 Soc pinctrl driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
source code:
drivers/pinctrl/meson/pinctrl-meson-a1.c