Enable fpc1020 as wakeup source

The interrupt generated on a finger detect event
wakes the device.

Finger detect settings are shared from userspace
via a shared memory page.

On suspend
 * Sensor is reset.
 * Finger detect settings are configured.
 * Sensor is set in sleep mode.

BUG=None
TEST=Boot Gru, try the test library.

Change-Id: I4d5e0ec0a2fdf0a76db4ee9d3e6cffd859c303b2
Reviewed-on: https://chromium-review.googlesource.com/413944
Commit-Ready: Todd Broch <tbroch@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
1 file changed