[coreboot-gerrit] Change in coreboot[master]: soc/intel/common/block/pcie/rtd3: Make changes to support S3

[Duncan Laurie (Code Review)]

Hello build bot (Jenkins), Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/48682

to look at the new patch set (#2).

Change subject: soc/intel/common/block/pcie/rtd3: Make changes to support S3
......................................................................

soc/intel/common/block/pcie/rtd3: Make changes to support S3

The RTD3 ACPI _ON method will unconditionally attempt to re-initialize
the device, setting up GPIOs, clocks, and the L23 ready exit flow.

When using S3 instead of S0ix this work is not needed and instead
results in the device disappearing and the resume failing in the OS.

BUG=b:174776411
TEST=test S3 and S0ix on volteer device with both NVMe and SD using
the RTD3 driver to ensure suspend/resume works in both cases.

Signed-off-by: Duncan Laurie 
Change-Id: I6bd7d001890939850381858fe663366472aacefc
---
M src/soc/intel/common/block/pcie/rtd3/rtd3.c
1 file changed, 37 insertions(+), 20 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/82/48682/2