This is the driver for the USB Type C cable detection mechanism
built into the ChromeOS Embedded Controller on systems that
have USB Type-C ports.

At present, this allows for the presence of display out, but in
future, it may also be used to notify host and device type cables
and the presence of power.
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: NChanwoo Choi <cw00.chio@samsung.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>