Change in coreboot[master]: drivers/tpm: Add firmware-power-managed DSD property

[Rob Barnes (Code Review)]

Attention is currently required from: Andrey Pronin, Raul Rangel, Christian Walter, Karthik Ramasubramanian.
Hello build bot (Jenkins), Andrey Pronin, Raul Rangel, Christian Walter, Karthik Ramasubramanian,

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

https://review.coreboot.org/c/coreboot/+/59479

to look at the new patch set (#6).

Change subject: drivers/tpm: Add firmware-power-managed DSD property
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drivers/tpm: Add firmware-power-managed DSD property

Introduce firmware-power-managed DSD ACPI property for TPM devices.
This property can be checked by the kernel TPM driver to override how
the TPM power states are managed. This is a tri-state flag, true,
false, or unset. So an enum used to keep the flag is unset by default.

When firmware-power-managed is true, the kernel driver will not send a
shutdown during s2idle/s0i3 suspend.

BUG=b:200578885
BRANCH=None
TEST=Shutdown is triggered on s0ix suspend on guybrush with patched
kernel

Change-Id: Ia48ead856fc0c6e637a2e07a5ecc58423f599c5b
Signed-off-by: Rob Barnes 
---
M src/drivers/i2c/tpm/chip.c
M src/drivers/i2c/tpm/chip.h
2 files changed, 23 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/79/59479/6