CONFIG_TSI108_BRIDGE is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_TSI108_BRIDGE (not configurable)

modulename: tsi108_pci.ko

configname: CONFIG_TSI108_BRIDGE

Linux Kernel Configuration
└─>TSI108_BRIDGE
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
source code:
arch/powerpc/sysdev/

is depended by
CONFIG_MPC7448HPC2