[M] Change in coreboot[main]: drivers/wwan/fm: Wake up modem on PEWAKE# signal change

[Paweł Anikiel (Code Review)]

Attention is currently required from: Kornel Dulęba, Nick Vaccaro, Paweł Anikiel.

Hello Nick Vaccaro, Subrata Banik, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/78297?usp=email

to look at the new patch set (#5).

The following approvals got outdated and were removed: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

Change subject: drivers/wwan/fm: Wake up modem on PEWAKE# signal change
......................................................................

drivers/wwan/fm: Wake up modem on PEWAKE# signal change

Create an event handler for the PEWAKE# GPIO and notify the device
driver to wake up the device.

BUG=b:301150499
TEST=Compiled and tested on google/redrix:
1. Enable runtime suspend for linux mtk_t7xx driver
2. Wait for device to enter suspended state
3. Modem should be able to wake up driver, e.g. on SIM card insert/eject
The interrupts should show up under /proc/interrupts as ACPI:Event

Signed-off-by: Paweł Anikiel 
Change-Id: I32257689da85ea71f9de781093b3ede0cfe70a0e
---
M src/drivers/wwan/fm/acpi_fm350gl.c
1 file changed, 55 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/97/78297/5