[coreboot-gerrit] Change in ...coreboot[master]: soc/intel/cannonlake: Add ASL function for setting pad mode

[Rizwan Qureshi (Code Review)]

Rizwan Qureshi has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31444

Change subject: soc/intel/cannonlake: Add ASL function for setting pad mode
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soc/intel/cannonlake: Add ASL function for setting pad mode

Add a funtion in gpio ASL library to set pad mode.

BUG=b:123350329

Change-Id: I6c683f27ddffc3132001706d1694c71bb5664577
Signed-off-by: Rizwan Qureshi 
---
M src/soc/intel/cannonlake/acpi/gpio_op.asl
1 file changed, 21 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/31444/1

diff --git a/src/soc/intel/cannonlake/acpi/gpio_op.asl b/src/soc/intel/cannonlake/acpi/gpio_op.asl
index 0618601..b051685 100644
--- a/src/soc/intel/cannonlake/acpi/gpio_op.asl
+++ b/src/soc/intel/cannonlake/acpi/gpio_op.asl
@@ -72,3 +72,24 @@
    }
    And (Not (GPIOTXSTATE_MASK), VAL0, VAL0)
 }
+
+/*
+ * Set Pad mode
+ * Arg0 - GPIO Number
+ * Arg1 - Pad mode
+ *     0 = GPIO control pad
+ *     1 = Native Funtion 1
+ *     2 = Native Funtion 2
+ *     3 = Native Funtion 3
+ */
+Method (GPMO, 2, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		TMP1, 10,
+		PADM, 2,
+		TMP2, 20,
+	}
+	Store(Arg1, PADM)
+}