Edward Hill 5bfeef6bb3 grunt: Set USB-C DP HPD GPIOs correctly.
Change the EC to drive the Hotplug Detect (HPD) GPIOs.

Grunt HW has these driven from EC to SOC, unlike coral which had
the TCPCs drive the HPD signals to SOC.

BUG=b:71810897
BRANCH=none
TEST=external display works using USB-C to DP adapter on both ports

Change-Id: I22ec9eecc5bdf9c6463dd3ce208d051faf15c57a
Signed-off-by: Edward Hill <ecgh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/892099
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
2018-02-01 21:29:38 -08:00
2017-08-07 19:29:13 -07:00
2018-02-01 18:08:48 -08:00
2018-01-30 14:54:17 -08:00
2017-07-08 20:38:53 -07:00
2017-10-10 22:13:43 -07:00
2018-01-12 03:27:10 -08:00
2018-01-23 20:18:28 -08:00
2017-11-17 20:18:38 -08:00
2012-05-11 09:11:52 -07:00
2018-01-26 13:25:49 -08:00
2014-04-02 19:58:53 +00:00
2017-11-16 21:07:40 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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