CONFIG_BF518_PWM_SYNC_PF7 is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_BF518_PWM_SYNC_PF7.
Result is shown for kernelversion 6.7-rc3

PF7

configname: CONFIG_BF518_PWM_SYNC_PF7

PWM Sync Pin
└─>PF7
In linux kernel since version 3.1 (release Date: 2011-10-24)