[S] Change in coreboot[4.18_branch]: superio/acpi/pnp_generic.asl: Add _PRS for each device

[Felix Singer (Code Review)]

Felix Singer has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70903 )

Change subject: superio/acpi/pnp_generic.asl: Add _PRS for each device
......................................................................

superio/acpi/pnp_generic.asl: Add _PRS for each device

Simply return the current resource settings in the _PRS method. This
means that coreboot has to correctly set up the resources on the
device. This won't result in any regression as without _PRS the ACPI
OS would not know what resources settings are valid, so it would never
use _SRS.

Original-signed-off-by: Arthur Heymans 
Original-reviewed-on: https://review.coreboot.org/c/coreboot/+/64218
Original-reviewed-by: Nico Huber 
Original-reviewed-by: Elyes Haouas 
Original-tested-by: build bot (Jenkins) 
Original-reviewed-by: Martin Roth

Cherry-picked-from: 148fd99365bb923cd7af37afcd93efdd781fd819
Change-Id: I2726714cbe076fc7c772c06883d8551400ff2baa
Signed-off-by: Felix Singer 
---
M src/superio/acpi/pnp_generic.asl
1 file changed, 32 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/70903/1

diff --git a/src/superio/acpi/pnp_generic.asl b/src/superio/acpi/pnp_generic.asl
index d0d9a2d..2bcc139 100644
--- a/src/superio/acpi/pnp_generic.asl
+++ b/src/superio/acpi/pnp_generic.asl
@@ -171,4 +171,12 @@
    	  Store (One, PNP_DEVICE_ACTIVE)
    	EXIT_CONFIG_MODE ()
    }
+
+	/* This is used for _SRS. Since _DIS only disables the device
+	 * without changing the resources this works.
+	 */
+	Method (_PRS, 0)
+	{
+		return (_CRS)
+	}
 }