arm64: dts: sc7180: Add cpufreq HW node for cpu scaling

cpufreq hw node required to scale CPU frequency on sc7180.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/0101016ed02b6356-5165eaaa-6c54-47ff-a008-821c91831e56-000000@us-west-2.amazonses.comSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

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

@@ -54,6 +54,7 @@ CPU0: cpu@0 {
 			reg = <0x0 0x0>;
 			enable-method = "psci";
 			next-level-cache = <&L2_0>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_0: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -69,6 +70,7 @@ CPU1: cpu@100 {
 			reg = <0x0 0x100>;
 			enable-method = "psci";
 			next-level-cache = <&L2_100>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_100: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -81,6 +83,7 @@ CPU2: cpu@200 {
 			reg = <0x0 0x200>;
 			enable-method = "psci";
 			next-level-cache = <&L2_200>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_200: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -93,6 +96,7 @@ CPU3: cpu@300 {
 			reg = <0x0 0x300>;
 			enable-method = "psci";
 			next-level-cache = <&L2_300>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_300: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -105,6 +109,7 @@ CPU4: cpu@400 {
 			reg = <0x0 0x400>;
 			enable-method = "psci";
 			next-level-cache = <&L2_400>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_400: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -117,6 +122,7 @@ CPU5: cpu@500 {
 			reg = <0x0 0x500>;
 			enable-method = "psci";
 			next-level-cache = <&L2_500>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_500: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -129,6 +135,7 @@ CPU6: cpu@600 {
 			reg = <0x0 0x600>;
 			enable-method = "psci";
 			next-level-cache = <&L2_600>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			L2_600: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -141,6 +148,7 @@ CPU7: cpu@700 {
 			reg = <0x0 0x700>;
 			enable-method = "psci";
 			next-level-cache = <&L2_700>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			L2_700: l2-cache {
 				compatible = "cache";
 				next-level-cache = <&L3_0>;
@@ -1132,6 +1140,17 @@ rpmhcc: clock-controller {
 				#clock-cells = <1>;
 			};
 		};
+
+		cpufreq_hw: cpufreq@18323000 {
+			compatible = "qcom,cpufreq-hw";
+			reg = <0 0x18323000 0 0x1400>, <0 0x18325800 0 0x1400>;
+			reg-names = "freq-domain0", "freq-domain1";
+
+			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>;
+			clock-names = "xo", "alternate";
+
+			#freq-domain-cells = <1>;
+		};
 	};
 
 	timer {