[S] Change in coreboot[main]: mb/google/brya/var/guren: Add Stylus Pen Function

[Daniel Peng (Code Review)]

Attention is currently required from: Daniel Peng, Dinesh Gehlot, Eric Lai, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Subrata Banik.

Hello Dinesh Gehlot, Eric Lai, Jayvik Desai, 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/+/87235?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed:
Code-Review+1 by Daniel Peng, Verified+1 by build bot (Jenkins)

Change subject: mb/google/brya/var/guren: Add Stylus Pen Function
......................................................................

mb/google/brya/var/guren: Add Stylus Pen Function

New Stylus Pen for MAXEYE/0585501490 module for Guren360 project.
1. Add STYLUS fw_config setting
2. Enable stylus device settings
3. Disable the stylus GPIO pins based on fw_config

BUG=b:406168542
BRANCH=firmware-nissa-15217.B
TEST=1. emerge-nissa coreboot
     2. Confirm command evtest for stylus PRP0001:00 and workable.

Change-Id: I46d679d29b35d0f4fc70d63b74975d3bdfc40b7b
Signed-off-by: Daniel Peng 
---
M src/mainboard/google/brya/variants/guren/fw_config.c
M src/mainboard/google/brya/variants/guren/gpio.c
M src/mainboard/google/brya/variants/guren/overridetree.cb
3 files changed, 32 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/87235/2