diff --git a/include/dt-bindings/iio/qti_power_supply_iio.h b/include/dt-bindings/iio/qti_power_supply_iio.h
index 5ba7d19106c8..cb85d31bd47e 100644
--- a/include/dt-bindings/iio/qti_power_supply_iio.h
+++ b/include/dt-bindings/iio/qti_power_supply_iio.h
@@ -182,4 +182,5 @@
 #define PSY_IIO_USB_TERMINATION_ENABLED 0x113
 #define PSY_IIO_START_BC12_DETECTION  0x114
 #define PSY_IIO_DETECTION_BC12_READY  0x115
+#define PSY_IIO_READ_USBIN_VOLTAGE  0x116
 #endif /* __QTI_POWER_SUPPLY_IIO_H__ */