dt-bindings: power: rpmpd: Add SM4250 support

Add compatible and constants for the power domains exposed by the
SM4250 RPM.

Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221127112204.1486337-2-bhupesh.sharma@linaro.org

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

@@ -39,6 +39,7 @@ properties:
       - qcom,sdm845-rpmhpd
       - qcom,sdx55-rpmhpd
       - qcom,sdx65-rpmhpd
+      - qcom,sm4250-rpmpd
       - qcom,sm6115-rpmpd
       - qcom,sm6125-rpmpd
       - qcom,sm6350-rpmhpd

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

@@ -306,6 +306,16 @@
 #define SDM660_SSCMX		8
 #define SDM660_SSCMX_VFL	9
 
+/* SM4250 Power Domains */
+#define SM4250_VDDCX		0
+#define SM4250_VDDCX_AO		1
+#define SM4250_VDDCX_VFL	2
+#define SM4250_VDDMX		3
+#define SM4250_VDDMX_AO		4
+#define SM4250_VDDMX_VFL	5
+#define SM4250_VDD_LPI_CX	6
+#define SM4250_VDD_LPI_MX	7
+
 /* SM6115 Power Domains */
 #define SM6115_VDDCX		0
 #define SM6115_VDDCX_AO		1