Change in ...coreboot[master]: src/soc/intel/cannonlake: Add _DSM methods for LPIT table

[Lijian Zhao (Code Review)]

Hello Patrick Rudolph, Duncan Laurie, build bot (Jenkins), Shaunak Saha, Furquan Shaikh,

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

https://review.coreboot.org/c/coreboot/+/31101

to look at the new patch set (#15).

Change subject: src/soc/intel/cannonlake: Add _DSM methods for LPIT table
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src/soc/intel/cannonlake: Add _DSM methods for LPIT table

This patch adds the _DSM method 5 and 6 for entering and exiting S0ix.
The _DSM method gets injected into DSDT table and called from kernel.

LPIT table is hardcoded in this patch but the proper way to implement
is to use inject_dsdt to make the _DSM methods available for soc's to
implement.

Calling the LPIT table from mainboard here so that with the current
implementation the platforms which do not have lpit support throw
compilation error.

Signed-off-by: Lijian Zhao 
Change-Id: Ia908969decf7cf12f505becb4f4a4a9caa7ed6db
---
M src/mainboard/google/sarien/dsdt.asl
A src/soc/intel/cannonlake/acpi/lpit.asl
2 files changed, 79 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/31101/15