[coreboot-gerrit] [S] Change in coreboot[master]: soc/intel/common/rtd3: Use D3COLD_SUPPORT to set max sleep state

[Sean Rhodes (Code Review)]

Attention is currently required from: Nico Huber, Sean Rhodes.

Hello build bot (Jenkins), Nico Huber,

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

https://review.coreboot.org/c/coreboot/+/74406

to look at the new patch set (#4).

Change subject: soc/intel/common/rtd3: Use D3COLD_SUPPORT to set max sleep state
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soc/intel/common/rtd3: Use D3COLD_SUPPORT to set max sleep state

Use D3COLD_SUPPORT Kconfig option to set the maximum support sleep
state. Report `4` in `_S0W` only when D3COLD_SUPPORT is enabled, as
if it is not, it will break S3 exit.

When D3COLD_SUPPORT is not enabled, return `3` (D3Hot).

This fixed S3 exit on both TGL and ADL. Tested on StarBook
Mk V and Mk VI.

Signed-off-by: Sean Rhodes 
Change-Id: I578d4933b6144aec79fe0b2eb168338ef82c0b9d
---
M src/soc/intel/common/block/pcie/rtd3/rtd3.c
1 file changed, 23 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/74406/4