diff --git a/Documentation/devicetree/bindings/power/actions,owl-sps.txt b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
index 78edd63..a357193 100644
--- a/Documentation/devicetree/bindings/power/actions,owl-sps.txt
+++ b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
@@ -3,11 +3,13 @@
 Required properties:
 - compatible          :  "actions,s500-sps" for S500
                          "actions,s700-sps" for S700
+                         "actions,s900-sps" for S900
 - reg                 :  Offset and length of the register set for the device.
 - #power-domain-cells :  Must be 1.
                          See macros in:
                           include/dt-bindings/power/owl-s500-powergate.h for S500
                           include/dt-bindings/power/owl-s700-powergate.h for S700
+                          include/dt-bindings/power/owl-s900-powergate.h for S900
 
 
 Example:
diff --git a/include/dt-bindings/power/owl-s900-powergate.h b/include/dt-bindings/power/owl-s900-powergate.h
new file mode 100644
index 0000000..d939bd9
--- /dev/null
+++ b/include/dt-bindings/power/owl-s900-powergate.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) */
+/*
+ * Actions Semi S900 SPS
+ *
+ * Copyright (c) 2018 Linaro Ltd.
+ */
+#ifndef DT_BINDINGS_POWER_OWL_S900_POWERGATE_H
+#define DT_BINDINGS_POWER_OWL_S900_POWERGATE_H
+
+#define S900_PD_GPU_B	0
+#define S900_PD_VCE	1
+#define S900_PD_SENSOR	2
+#define S900_PD_VDE	3
+#define S900_PD_HDE	4
+#define S900_PD_USB3	5
+#define S900_PD_DDR0	6
+#define S900_PD_DDR1	7
+#define S900_PD_DE	8
+#define S900_PD_NAND	9
+#define S900_PD_USB2_H0	10
+#define S900_PD_USB2_H1	11
+
+#endif