[coreboot-gerrit] Change in coreboot[master]: superio/common/ssdt: Make disabled PNP devices ACPI compliant

[Patrick Rudolph (Code Review)]

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37692 )

Change subject: superio/common/ssdt: Make disabled PNP devices ACPI compliant
......................................................................

superio/common/ssdt: Make disabled PNP devices ACPI compliant

Always write a _HID, even for disabled PNP devices.

Fixes a BSOD on Windows 10.

Change-Id: I419a08bd6a3570fb4e1ae31bef4f9ccd6836fe1b
Signed-off-by: Patrick Rudolph 
---
M src/superio/common/ssdt.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/37692/1

diff --git a/src/superio/common/ssdt.c b/src/superio/common/ssdt.c
index a919aa5..563178c 100644
--- a/src/superio/common/ssdt.c
+++ b/src/superio/common/ssdt.c
@@ -203,6 +203,9 @@
    acpigen_write_STA(dev->enabled ? 0xf : 0);

if (!dev->enabled) {
+		/* To be ACPI compliant, always write a _HID */
+		acpigen_write_name_string("_HID", ACPI_HID_PNP);
+
    	acpigen_pop_len(); /* Device */
    	acpigen_pop_len(); /* Scope */
    	return;