arm64: dts: sc7180: Add qspi opps and power-domains

Add the power domain supporting performance state and the corresponding
OPP tables for the qspi device on sc7180
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/1593769293-6354-4-git-send-email-rnayak@codeaurora.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -2407,6 +2407,25 @@ sdhc_2: sdhci@8804000 {
 			status = "disabled";
 		};
 
+		qspi_opp_table: qspi-opp-table {
+			compatible = "operating-points-v2";
+
+			opp-75000000 {
+				opp-hz = /bits/ 64 <75000000>;
+				required-opps = <&rpmhpd_opp_low_svs>;
+			};
+
+			opp-150000000 {
+				opp-hz = /bits/ 64 <150000000>;
+				required-opps = <&rpmhpd_opp_svs>;
+			};
+
+			opp-300000000 {
+				opp-hz = /bits/ 64 <300000000>;
+				required-opps = <&rpmhpd_opp_nom>;
+			};
+		};
+
 		qspi: spi@88dc000 {
 			compatible = "qcom,qspi-v1";
 			reg = <0 0x088dc000 0 0x600>;
@@ -2419,6 +2438,8 @@ qspi: spi@88dc000 {
 			interconnects = <&gem_noc MASTER_APPSS_PROC
 					&config_noc SLAVE_QSPI_0>;
 			interconnect-names = "qspi-config";
+			power-domains = <&rpmhpd SC7180_CX>;
+			operating-points-v2 = <&qspi_opp_table>;
 			status = "disabled";
 		};