diff --git a/include/dt-bindings/suspend/rockchip-rv1126b.h b/include/dt-bindings/suspend/rockchip-rv1126b.h
index 3b51c78d626d..04da220a35fa 100644
--- a/include/dt-bindings/suspend/rockchip-rv1126b.h
+++ b/include/dt-bindings/suspend/rockchip-rv1126b.h
@@ -24,6 +24,7 @@
 #define RKPM_SLP_CLK_GT			BIT(16)
 #define RKPM_SLP_PMIC_LP		BIT(17)
 
+#define RKPM_SLP_32K_IO			BIT(23)
 #define RKPM_SLP_32K_EXT		BIT(24)
 #define RKPM_SLP_TIME_OUT_WKUP		BIT(25)
 #define RKPM_SLP_PMU_DBG		BIT(26)