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-rw-r--r--src/soc/intel/cannonlake/acpi/gpio_op.asl22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/acpi/gpio_op.asl b/src/soc/intel/cannonlake/acpi/gpio_op.asl
index 0618601b9e..0c89e998c1 100644
--- a/src/soc/intel/cannonlake/acpi/gpio_op.asl
+++ b/src/soc/intel/cannonlake/acpi/gpio_op.asl
@@ -72,3 +72,25 @@ Method (CTXS, 1, Serialized)
}
And (Not (GPIOTXSTATE_MASK), VAL0, VAL0)
}
+
+/*
+ * Set Pad mode
+ * Arg0 - GPIO Number
+ * Arg1 - Pad mode
+ * 0 = GPIO control pad
+ * 1 = Native Function 1
+ * 2 = Native Function 2
+ * 3 = Native Function 3
+ */
+Method (GPMO, 2, Serialized)
+{
+ OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+ Field (PREG, AnyAcc, NoLock, Preserve)
+ {
+ VAL0, 32
+ }
+ Store (VAL0, Local0)
+ And (Not (GPIOPADMODE_MASK), Local0, Local0)
+ And (ShiftLeft (Arg1, GPIOPADMODE_SHIFT, Arg1), GPIOPADMODE_MASK, Arg1)
+ Or (Local0, Arg1, VAL0)
+}