[S] Change in coreboot[main]: soc/intel/xeon_sp: Fix iiostack.asl

[Lean Sheng Tan (Code Review)]

Lean Sheng Tan has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84795?usp=email )

(

2 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: soc/intel/xeon_sp: Fix iiostack.asl
......................................................................

soc/intel/xeon_sp: Fix iiostack.asl

Align DSDT names with SSDT naming scheme, as provided by
iio_domain_set_acpi_name() and hide unused devices by implementing
the _STA method as done on newer platforms.

Change-Id: I8488907f28a78a6f71046dba54ba9cbd4b0652eb
Signed-off-by: Patrick Rudolph 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84795
Tested-by: build bot (Jenkins) 
Reviewed-by: Shuo Liu 
---
M src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl
1 file changed, 16 insertions(+), 4 deletions(-)

Approvals:
  Shuo Liu: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl b/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl
index 0dd39a0..53e144a 100644
--- a/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl
+++ b/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl
@@ -6,6 +6,17 @@
    	Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */)	\
    	Name (_CID, EisaId ("PNP0A03") /* PCI Bus */)		\
    	Name (_UID, 0x##id)					\
+		Method (_STA, 0, NotSerialized)				\
+		{							\
+			If (CondRefOf (_CRS))				\
+			{						\
+				Return (0xf)				\
+			}						\
+			Else						\
+			{						\
+				Return (0)				\
+			}						\
+		}							\
    	Method (_PRT, 0, NotSerialized)				\
    	{							\
    		If (PICM)					\
@@ -60,14 +71,15 @@
    	}								\
    }

+// Keep in sync with iio_domain_set_acpi_name()!
 MAKE_IIO_DEV(00, 00)
 MAKE_IIO_DEV(01, 10)
 MAKE_IIO_DEV(02, 20)
 MAKE_IIO_DEV(03, 28)

#if (CONFIG_MAX_SOCKET > 1)
-MAKE_IIO_DEV(06, 40)
-MAKE_IIO_DEV(07, 50)
-MAKE_IIO_DEV(08, 60)
-MAKE_IIO_DEV(09, 68)
+MAKE_IIO_DEV(20, 40)
+MAKE_IIO_DEV(21, 50)
+MAKE_IIO_DEV(22, 60)
+MAKE_IIO_DEV(23, 68)
 #endif