Cadence Sierra PHY Driver

modulename: phy-cadence-sierra.ko

configname: CONFIG_PHY_CADENCE_SIERRA

Linux Kernel Configuration
└─>Device Drivers
└─>PHY Subsystem
└─>Device Tree and Open Firmware support
└─>Reset Controller Support
└─>Cadence Sierra PHY Driver
In linux kernel since version 5 (release Date: 2019-03-03)  
Enable this to support the Cadence Sierra PHY driver

source code: