[coreboot-gerrit] Change in coreboot[master]: soc/intel/adl: Enable GPIO PM after booting to OS

[Maulik V Vaghela (Code Review)]

Maulik V Vaghela has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59264 )

Change subject: soc/intel/adl: Enable GPIO PM after booting to OS
......................................................................

soc/intel/adl: Enable GPIO PM after booting to OS

In case of older TPM firmware version which doesn't support long
interrupt pulses, coreboot needs to disable GPIO power management.
This will impact overall power consumption of the platform.

This patch ensures that, GPIO power management is enabled once
platform boots to OS and there is minimal impact on power consumption.

BUG=b:204832081
BRANCH=None
Test=GPIO PM bits are enabled once booted to OS and s0ix is functional.

Change-Id: Ie5be925caace7a58052476d0995fb9ee0efc2fd2
Signed-off-by: MAULIK V VAGHELA 
---
M src/soc/intel/alderlake/acpi/gpio.asl
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/64/59264/1

diff --git a/src/soc/intel/alderlake/acpi/gpio.asl b/src/soc/intel/alderlake/acpi/gpio.asl
index 376afab..77333c2 100644
--- a/src/soc/intel/alderlake/acpi/gpio.asl
+++ b/src/soc/intel/alderlake/acpi/gpio.asl
@@ -21,6 +21,12 @@
    	Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ)
    		{ GPIO_IRQ14 }
    })
+
+	Method (_INI, 0, NotSerialized)
+	{
+		EGPM()
+	}
+
    Method (_CRS, 0, NotSerialized)
    {
    	/* GPIO Community 0 */