1.1 How to enable OTG FSM in menuconfig
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-Select CONFIG_USB_OTG_FSM.
+Select CONFIG_USB_OTG_FSM, rebuild kernel Image and modules.
If you want to check some internal variables for otg fsm,
select CONFIG_USB_CHIPIDEA_DEBUG, there are 2 files which
can show otg fsm variables and some controller registers value: