tree dde10c2d3404067249d2df584e8905818b31b81e
parent 69bcf763ab05de9d78b02d8ece9715375570c480
author jason-ch chen <Jason-ch.Chen@mediatek.com> 1679473204 +0800
committer Felix Held <felix-coreboot@felixheld.de> 1679921124 +0000

mb/google/geralt: Set up open-drain ChromeOS pins

Set open-drain GPIOs for ChromeOS as input and bias-disable mode.
After applying this patch, the voltage of these pins will become the
expected value 1.8V (previously 1.0V), preventing wrong judgement of
low/high.

Reference document:
MT8188G_GPIO_Formal_Application_Spec_V0.3

BUG=b:274058085
TEST=build pass

Change-Id: I057716df6c59efb84fc395109db022b82ce528c4
Signed-off-by: jason-ch chen <Jason-ch.Chen@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73963
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>