[M] Change in coreboot[main]: mb/google/fatcat: Add Intel Touch support for touchscreen and touchpad

[Cliff Huang (Code Review)]

Attention is currently required from: Bora Guvendik, Jayvik Desai, Jérémy Compostella, Kapil Porwal, Kyoung Il Kim, Pranava Y N, Subrata Banik.

Hello Bora Guvendik, Jayvik Desai, Jérémy Compostella, Kapil Porwal, Kyoung Il Kim, Pranava Y N, Subrata Banik, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/85200?usp=email

to look at the new patch set (#23).

Change subject: mb/google/fatcat: Add Intel Touch support for touchscreen and touchpad
......................................................................

mb/google/fatcat: Add Intel Touch support for touchscreen and touchpad

This patch does the following:
- build with THC driver
- touchscreen for THC-I2C mode and THC-SPI mode.
  for Touchscreen to use in THC-SPI mode, a rework is required.
  fw_config = TOUCHSCREEN
  supported device for THC-I2C: ELAN BOM37A
  supported device for THC-SPI: ELAN BOM36

- touchpad for THC-I2C mode
  for Touchpad to use in THC-I2C mode, a rework is required to switch
  the interrupt pad from GPP_A13 to GPP_F18.
  fw_config = TOUCHPAD
  supported device for THC-I2C: HYNITRON HFW68H

- Add variant specific touch.h

- wake support for touchscreen in LPSS-I2C, THC-I2C, THC-SPI modes

- wake support for touchpad in LPSS-I2C and THC-I2C modes

BUG=none
TEST=set CBI fw_config TOUCHSREEN to TOUCHSCREEN_LPSS_I2C and/or ,
set fw_config TOUCHPAD to TOUCHPAD_LPSS_I2C.Boot fatcat board to OS and
run lspci to check THC devices. Check that the device inputs are
enumerated under /sys/class/hidraw directory. Enter S0ix and check
that the board can wake up from touchscreen and touchpad inputs.

Signed-off-by: Cliff Huang 
Change-Id: I865dbb9eed648c8f35c7f469b27a13be993ff479
---
M src/mainboard/google/fatcat/Kconfig
M src/mainboard/google/fatcat/variants/fatcat/fw_config.c
M src/mainboard/google/fatcat/variants/fatcat/gpio.c
A src/mainboard/google/fatcat/variants/fatcat/include/variant/touch.h
M src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
M src/mainboard/google/fatcat/variants/fatcat/variant.c
6 files changed, 153 insertions(+), 17 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/85200/23