arm64: dts: qcom: msm8992-libra: Update regulator config

* Add PMI8994 RPM regulators
* Add missing PM8994 LVSes
* Add comments concerning "missing" regulators
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210118162432.107275-3-konrad.dybcio@somainline.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/msm8992-xiaomi-libra.dts

@@ -144,24 +144,16 @@ pm8994-regulators {
 		vdd_l4_27_31-supply = <&pm8994_s3>;
 		vdd_l5_7-supply = <&pm8994_s3>;
 		vdd_l6_12_32-supply = <&pm8994_s5>;
-		vdd_l8_16_30-supply = <&vreg_vph_pwr>;
-		vdd_l9_10_18_22-supply = <&vreg_vph_pwr>;
-		vdd_l13_19_23_24-supply = <&vreg_vph_pwr>;
+		vdd_l8_16_30-supply = <&vph_pwr>;
+		vdd_l9_10_18_22-supply = <&vph_pwr>;
+		vdd_l13_19_23_24-supply = <&vph_pwr>;
 		vdd_l14_15-supply = <&pm8994_s5>;
-		vdd_l17_29-supply = <&vreg_vph_pwr>;
-		vdd_l20_21-supply = <&vreg_vph_pwr>;
+		vdd_l17_29-supply = <&vph_pwr>;
+		vdd_l20_21-supply = <&vph_pwr>;
 		vdd_l25-supply = <&pm8994_s5>;
 		vdd_lvs1_2 = <&pm8994_s4>;
 
-		pm8994_s1: s1 {
-			/* unused */
-			status = "disabled";
-		};
-
-		pm8994_s2: s2 {
-			/* unused */
-			status = "disabled";
-		};
+		/* S1, S2, S6 and S12 are managed by RPMPD */
 
 		pm8994_s3: s3 {
 			regulator-min-microvolt = <1300000>;
@@ -186,6 +178,8 @@ pm8994_s7: s7 {
 			regulator-max-microvolt = <1000000>;
 		};
 
+		/* S8, S9, S10 and S11 - SPMI-managed VDD_APC */
+
 		pm8994_l1: l1 {
 			regulator-min-microvolt = <1000000>;
 			regulator-max-microvolt = <1000000>;
@@ -206,20 +200,14 @@ pm8994_l4: l4 {
 			regulator-max-microvolt = <1225000>;
 		};
 
-		pm8994_l5: l5 {
-			/* unused */
-			status = "disabled";
-		};
+		/* L5 is inaccessible from RPM */
 
 		pm8994_l6: l6 {
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 		};
 
-		pm8994_l7: l7 {
-			/* unused */
-			status = "disabled";
-		};
+		/* L7 is inaccessible from RPM */
 
 		pm8994_l8: l8 {
 			regulator-min-microvolt = <1800000>;
@@ -352,6 +340,27 @@ pm8994_l32: l32 {
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 		};
+
+		pm8994_lvs1: lvs1 {};
+		pm8994_lvs2: lvs2 {};
+	};
+
+	pmi8994_regulators: pmi8994-regulators {
+		compatible = "qcom,rpm-pmi8994-regulators";
+		vdd_s1-supply = <&vph_pwr>;
+		vdd_bst_byp-supply = <&vph_pwr>;
+
+		pmi8994_s1: s1 {
+			regulator-min-microvolt = <1025000>;
+			regulator-max-microvolt = <1025000>;
+		};
+
+		/* S2 & S3 - VDD_GFX */
+
+		pmi8994_bby: boost-bypass {
+			regulator-min-microvolt = <3150000>;
+			regulator-max-microvolt = <3600000>;
+		};
 	};
 };