DS4520 I2C GPIO expander

modulename: gpio-ds4520.ko

configname: CONFIG_GPIO_DS4520

Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>I2C GPIO expanders
└─>DS4520 I2C GPIO expander
In linux kernel since version 4.14.327 (release Date: 2023-10-10)  
GPIO driver for ADI DS4520 I2C-based GPIO expander.
Say yes here to enable the GPIO driver for the ADI DS4520 chip.

To compile this driver as a module, choose M here: the module will
be called gpio-ds4520.

source code: