ARM: dts: qcom: msm8226: add power domains

Add a node for the power domain controller found in MSM8226.

At the same time remove any existing usages of pm8226_s1 as this
regulator is now handled by power domains.
Signed-off-by: NLuca Weiss <luca@z3ntu.xyz>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220220223004.507739-3-luca@z3ntu.xyz

arch/arm/boot/dts/qcom-apq8026-lg-lenok.dts

@@ -105,10 +105,6 @@
 	pm8226-regulators {
 		compatible = "qcom,rpm-pm8226-regulators";
 
-		pm8226_s1: s1 {
-			regulator-min-microvolt = <500000>;
-			regulator-max-microvolt = <1275000>;
-		};
 		pm8226_s3: s3 {
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1350000>;

arch/arm/boot/dts/qcom-msm8226.dtsi

@@ -73,6 +73,35 @@
 			rpm_requests: rpm-requests {
 				compatible = "qcom,rpm-msm8226";
 				qcom,smd-channels = "rpm_requests";
+
+				rpmpd: power-controller {
+					compatible = "qcom,msm8226-rpmpd";
+					#power-domain-cells = <1>;
+					operating-points-v2 = <&rpmpd_opp_table>;
+
+					rpmpd_opp_table: opp-table {
+						compatible = "operating-points-v2";
+
+						rpmpd_opp_ret: opp1 {
+							opp-level = <1>;
+						};
+						rpmpd_opp_svs_krait: opp2 {
+							opp-level = <2>;
+						};
+						rpmpd_opp_svs_soc: opp3 {
+							opp-level = <3>;
+						};
+						rpmpd_opp_nom: opp4 {
+							opp-level = <4>;
+						};
+						rpmpd_opp_turbo: opp5 {
+							opp-level = <5>;
+						};
+						rpmpd_opp_super_turbo: opp6 {
+							opp-level = <6>;
+						};
+					};
+				};
 			};
 		};
 	};