dt-bindings: power: rpmpd: Add sc7280 to rpmpd binding

Add compatible and constants for the power domains exposed by the RPMH
in the Qualcomm Technologies Inc sc7280 platform.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/1614664092-9394-1-git-send-email-rnayak@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Documentation/devicetree/bindings/power/qcom,rpmpd.yaml

@@ -25,6 +25,7 @@ properties:
       - qcom,qcs404-rpmpd
       - qcom,sdm660-rpmpd
       - qcom,sc7180-rpmhpd
+      - qcom,sc7280-rpmhpd
       - qcom,sdm845-rpmhpd
       - qcom,sdx55-rpmhpd
       - qcom,sm8150-rpmhpd

include/dt-bindings/power/qcom-rpmpd.h

@@ -70,6 +70,17 @@
 #define SC7180_LCX	6
 #define SC7180_MSS	7
 
+/* SC7280 Power Domain Indexes */
+#define SC7280_CX	0
+#define SC7280_CX_AO	1
+#define SC7280_EBI	2
+#define SC7280_GFX	3
+#define SC7280_MX	4
+#define SC7280_MX_AO	5
+#define SC7280_LMX	6
+#define SC7280_LCX	7
+#define SC7280_MSS	8
+
 /* SDM845 Power Domain performance levels */
 #define RPMH_REGULATOR_LEVEL_RETENTION	16
 #define RPMH_REGULATOR_LEVEL_MIN_SVS	48