diff --git a/Documentation/devicetree/bindings/power/qcom,rpmpd.txt b/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
index 172ccf940c5c..eb35b22f9e23 100644
--- a/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
+++ b/Documentation/devicetree/bindings/power/qcom,rpmpd.txt
@@ -6,6 +6,7 @@ which then translates it into a corresponding voltage on a rail
 Required Properties:
  - compatible: Should be one of the following
 	* qcom,msm8996-rpmpd: RPM Power domain for the msm8996 family of SoC
+	* qcom,msm8998-rpmpd: RPM Power domain for the msm8998 family of SoC
 	* qcom,qcs404-rpmpd: RPM Power domain for the qcs404 family of SoC
 	* qcom,sdm845-rpmhpd: RPMh Power domain for the sdm845 family of SoC
  - #power-domain-cells: number of cells in Power domain specifier
diff --git a/include/dt-bindings/power/qcom-rpmpd.h b/include/dt-bindings/power/qcom-rpmpd.h
index 450378662944..93e36d011527 100644
--- a/include/dt-bindings/power/qcom-rpmpd.h
+++ b/include/dt-bindings/power/qcom-rpmpd.h
@@ -36,6 +36,18 @@
 #define MSM8996_VDDSSCX		5
 #define MSM8996_VDDSSCX_VFC	6
 
+/* MSM8998 Power Domain Indexes */
+#define MSM8998_VDDCX		0
+#define MSM8998_VDDCX_AO	1
+#define MSM8998_VDDCX_VFL	2
+#define MSM8998_VDDMX		3
+#define MSM8998_VDDMX_AO	4
+#define MSM8998_VDDMX_VFL	5
+#define MSM8998_SSCCX		6
+#define MSM8998_SSCCX_VFL	7
+#define MSM8998_SSCMX		8
+#define MSM8998_SSCMX_VFL	9
+
 /* QCS404 Power Domains */
 #define QCS404_VDDMX		0
 #define QCS404_VDDMX_AO		1