[S] Change in coreboot[main]: mb/google/nissa/var/glassway: Adjust touchscreen power sequencing

[Frank Chu (Code Review)]

Attention is currently required from: Dinesh Gehlot, Eric Lai, Frank Chu, Kapil Porwal, Matt DeVillier, Nick Vaccaro, Paul Menzel, Subrata Banik.

Hello Dinesh Gehlot, Eric Lai, Kapil Porwal, Nick Vaccaro, Subrata Banik, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/81135?usp=email

to look at the new patch set (#17).

The following approvals got outdated and were removed:
Verified-1 by build bot (Jenkins)

Change subject: mb/google/nissa/var/glassway: Adjust touchscreen power sequencing
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mb/google/nissa/var/glassway: Adjust touchscreen power sequencing

Adjust touchscreen power sequencing for eKTH5015M.

The INX touch panel (eKTH5015M) contains a pull-up register which causes TCHSCR_REPORT_EN pull-up abnormally from Z1 power on.Because the t25 must be at least greater than 20ms, TCHSCR_REPORT_EN is initialized to GPO_L in the early stage (romstage) to meet the spec.

BUG=b:328170008
BRANCH=firmware-nissa-15217.B
TEST=Build and check I2C devices timing meet spec.
[INFO ]  input: Elan Touchscreen as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-10/i2c-ELAN0001:00/input/in4

Change-Id: I50f9c21ddee2bc9c1d313f63049cb587b4ae047a
Signed-off-by: Frank Chu 
---
M src/mainboard/google/brya/variants/glassway/gpio.c
M src/mainboard/google/brya/variants/glassway/overridetree.cb
2 files changed, 6 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/81135/17