the following patch was just integrated into master: commit 2fe0d75d42904b224be344b1865a2582b20ecea2 Author: Furquan Shaikh furquan@chromium.org Date: Tue Dec 13 09:15:07 2016 -0800
google/reef: Use exported GPIOs and ACPI regulator for touchscreen
ELAN touchscreen device expects firmware to export GPIOs and ACPI regulators for managing power to the device. Thus, provide the required ACPI elements for OS driver to properly manage this device.
BUG=chrome-os-partner:60194 BRANCH=None TEST=Verified that touchscreen works properly on boot-up and after suspend/resume.
Change-Id: I298ca5de9c0ae302309d87e3dffb65f9be1e882e Signed-off-by: Furquan Shaikh furquan@chromium.org Reviewed-on: https://review.coreboot.org/17799 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin adurbin@chromium.org Reviewed-by: Duncan Laurie dlaurie@chromium.org
See https://review.coreboot.org/17799 for details.
-gerrit