diff --git a/src/superio/nsc/pc87392/pc87392.h b/src/superio/nsc/pc87392/pc87392.h
index 759f109622..4756351da8 100644
--- a/src/superio/nsc/pc87392/pc87392.h
+++ b/src/superio/nsc/pc87392/pc87392.h
@@ -28,4 +28,15 @@
 #define PC87392_GPIO 0x07
 #define PC87392_WDT  0x0A
 
+#define PC87392_GPIO_PIN_OE 0x01
+#define PC87392_GPIO_PIN_TYPE_PUSH_PULL 0x02
+#define PC87392_GPIO_PIN_PULLUP 0x04
+#define PC87392_GPIO_PIN_LOCK 0x08
+#define PC87392_GPIO_PIN_TRIG_LEVEL 0x10
+#define PC87392_GPIO_PIN_TRIG_LOW 0x20
+#define PC87392_GPIO_PIN_DEBOUNCE 0x40
+
+#define PC87392_GPIO_PIN_TRIGGERS_IRQ 0x01
+#define PC87392_GPIO_PIN_TRIGGERS_SMI 0x02
+
 #endif