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-rw-r--r--src/soc/intel/tigerlake/acpi/gpio.asl46
1 files changed, 45 insertions, 1 deletions
diff --git a/src/soc/intel/tigerlake/acpi/gpio.asl b/src/soc/intel/tigerlake/acpi/gpio.asl
index dc76a387b7..f6cccfb801 100644
--- a/src/soc/intel/tigerlake/acpi/gpio.asl
+++ b/src/soc/intel/tigerlake/acpi/gpio.asl
@@ -163,7 +163,51 @@ Method (GRXS, 1, Serialized)
{
VAL0, 32
}
- And (GPIORXSTATE_MASK, ShiftRight (VAL0, GPIORXSTATE_SHIFT), Local0)
+ Local0 = GPIORXSTATE_MASK & (VAL0 >> GPIORXSTATE_SHIFT)
Return (Local0)
}
+
+/*
+ * Get GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (GTXS, 1, Serialized)
+{
+ OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+ Field (PREG, AnyAcc, NoLock, Preserve)
+ {
+ VAL0, 32
+ }
+ Local0 = GPIOTXSTATE_MASK & VAL0
+
+ Return (Local0)
+}
+
+/*
+ * Set GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (STXS, 1, Serialized)
+{
+ OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+ Field (PREG, AnyAcc, NoLock, Preserve)
+ {
+ VAL0, 32
+ }
+ VAL0 |= GPIOTXSTATE_MASK
+}
+
+/*
+ * Clear GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (CTXS, 1, Serialized)
+{
+ OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+ Field (PREG, AnyAcc, NoLock, Preserve)
+ {
+ VAL0, 32
+ }
+ VAL0 &= ~GPIOTXSTATE_MASK
+}