arm64: dts: qcom: sa8775p: add cpufreq node

Add a node for the cpufreq engine and specify the frequency domains for
all CPUs.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230221150543.283487-3-brgl@bgdev.pl

arch/arm64/boot/dts/qcom/sa8775p.dtsi

@@ -37,6 +37,7 @@ CPU0: cpu@0 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			next-level-cache = <&L2_0>;
 			L2_0: l2-cache {
 				compatible = "cache";
@@ -52,6 +53,7 @@ CPU1: cpu@100 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			next-level-cache = <&L2_1>;
 			L2_1: l2-cache {
 				compatible = "cache";
@@ -64,6 +66,7 @@ CPU2: cpu@200 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x200>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			next-level-cache = <&L2_2>;
 			L2_2: l2-cache {
 				compatible = "cache";
@@ -76,6 +79,7 @@ CPU3: cpu@300 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x300>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 0>;
 			next-level-cache = <&L2_3>;
 			L2_3: l2-cache {
 				compatible = "cache";
@@ -88,6 +92,7 @@ CPU4: cpu@10000 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x10000>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			next-level-cache = <&L2_4>;
 			L2_4: l2-cache {
 				compatible = "cache";
@@ -104,6 +109,7 @@ CPU5: cpu@10100 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x10100>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			next-level-cache = <&L2_5>;
 			L2_5: l2-cache {
 				compatible = "cache";
@@ -116,6 +122,7 @@ CPU6: cpu@10200 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x10200>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			next-level-cache = <&L2_6>;
 			L2_6: l2-cache {
 				compatible = "cache";
@@ -128,6 +135,7 @@ CPU7: cpu@10300 {
 			compatible = "qcom,kryo";
 			reg = <0x0 0x10300>;
 			enable-method = "psci";
+			qcom,freq-domain = <&cpufreq_hw 1>;
 			next-level-cache = <&L2_7>;
 			L2_7: l2-cache {
 				compatible = "cache";
@@ -645,6 +653,19 @@ tcsr_mutex: hwlock@1f40000 {
 			#hwlock-cells = <1>;
 		};
 
+		cpufreq_hw: cpufreq@18591000 {
+			compatible = "qcom,sa8775p-cpufreq-epss",
+				     "qcom,cpufreq-epss";
+			reg = <0x0 0x18591000 0x0 0x1000>,
+			      <0x0 0x18593000 0x0 0x1000>;
+			reg-names = "freq-domain0", "freq-domain1";
+
+			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
+			clock-names = "xo", "alternate";
+
+			#freq-domain-cells = <1>;
+		};
+
 		tlmm: pinctrl@f000000 {
 			compatible = "qcom,sa8775p-tlmm";
 			reg = <0x0 0xf000000 0x0 0x1000000>;