Change in coreboot[master]: mb/google/guybrush: Set TPM to to be kernel power managed.

[Rob Barnes (Code Review)]

Rob Barnes has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/60081 )

Change subject: mb/google/guybrush: Set TPM to to be kernel power managed.
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mb/google/guybrush: Set TPM to to be kernel power managed.

Set TPM power_managed_mode to TPM_KERNEL_POWER_MANAGED. This will cause
the TPM kernel driver to send a shutdown command before s0i3 entry. This
change depends on S0i3 verstage running and reinitializing the TPM.

BUG=b:200578885
BRANCH=None
TEST=TPM shutdown sent during s0i3 entry on guybrush

Change-Id: I206022cc2a29690186206966c5d45bd55c303248
---
M src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
1 file changed, 1 insertion(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/60081/1

diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
index 7fb3c7e..21fef85 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb
@@ -342,6 +342,7 @@
    		register "hid" = ""GOOG0005""
    		register "desc" = ""Cr50 TPM""
    		register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_85)"
+			register "power_managed_mode" = "TPM_KERNEL_POWER_MANAGED"
    		device i2c 50 alias cr50 on end
    	end
    end