[coreboot-gerrit] Change in coreboot[master]: mb/google/dedede/var/metaknight: Turn off lte power when s0ix

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: David Wu, Evan Green, Paul Menzel, Karthik Ramasubramanian.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55249 )

Change subject: mb/google/dedede/var/metaknight: Turn off lte power when s0ix
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Patch Set 6:

(2 comments)

File src/mainboard/google/dedede/variants/metaknight/include/variant/acpi/lte.asl:

https://review.coreboot.org/c/coreboot/+/55249/comment/9f41b7e1_fbff2198 
PS6, Line 3: LTE_EN
> What does EN mean?

EN = ENable

https://review.coreboot.org/c/coreboot/+/55249/comment/3f84d5bd_d9e7479c 
PS6, Line 8: 	If (Arg0) {
> Is there a way to check in ACPI/ASL, if the device is present?

The only way (currently) would be to add FW_CONFIG support to ACPI, which is not planned. Instead, dedede added a `VARIANT_HAS_LTE_ACPI` Kconfig option to add this power sequencing to the variants that have an LTE modem.