CONFIG_BCM_NET_PHYPTP (not configurable)

modulename: bcm-phy-ptp.ko

configname: CONFIG_BCM_NET_PHYPTP

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>PHY Device support and infrastructure
└─>BCM_NET_PHYPTP
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
source code:
drivers/net/phy/bcm-phy-ptp.c

is depended by
CONFIG_BROADCOM_PHY