tree 8d7d3a6dc27e2b4a28f886847399ec8c72abb67b
parent cc6c41f8d8b6880a7ad4947599350758cd18f85f
author Furquan Shaikh <furquan@google.com> 1596664479 -0700
committer Furquan Shaikh <furquan@google.com> 1596740952 +0000

mb/google/zork: Add touchscreen power control

This change adds support for touchscreen power control using:
* GPIO_90 for trembyle based boards
* GPIO_32 for dalboz based boards

By default, baseboard tables configure these GPIOs as PAD_GPO driven
low and override trees expose these pads as enable_gpio to be used by
ACPI power resource.

In order to support pre-v3.6 boards, override tables configure these
pads as PAD_NC and drop the enable_gpio setting from device tree based
on board version.

BUG=b:161935640, b:162747210

Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>