Realtek Otto GPIO support

modulename: gpio-realtek-otto.ko

configname: CONFIG_GPIO_REALTEK_OTTO

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Memory mapped GPIO drivers
└─>Realtek Otto GPIO support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
The GPIO controller on the Otto MIPS platform supports up to two
banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
are grouped in four 8-bit wide ports.

When built as a module, the module will be called realtek_otto_gpio.

source code: