Maxim Integrated MAX3355E chip integrates a charge pump and comparators to^^ ^^
enable a system with an integrated USB OTG dual-role transceiver to function^^ ^^ ^^ ^^
as an USB OTG dual-role device. In addition to sensing/controlling Vbus,
the chip also passes thru the ID signal from the USB OTG connector.^^
On some Renesas boards, this signal is just fed into the SoC thru a GPIO^^ ^^
pin -- there's no real OTG controller, only host and gadget USB controllers^^ ^^
sharing the same USB bus; however, we'd like to allow host or gadget drivers^^
to be loaded depending on the cable type, hence the need for the MAX3355^^
extcon driver. The Vbus status signals are also wired to GPIOs (however, we^^ ^^
aren't currently interested in them), the OFFVBUS# signal is controlled by
the host controllers, there's also the SHDN# signal wired to a GPIO, it^^
should be driven high for the normal operation.^^
As above '^' expression, you used the double space between words.
You should fix it.
Thanks,[...]
Chanwoo Choi