ARM: dt: tegra: whistler: add regulators

Whistler uses a Maxim 8907 regulator. Instantiate this.

The voltage settings were derived from the schematic. The only exception
is the BBAT voltage; the schematic says 1.2v, but the HW can't go that
low, so use the HW default of 2.4v instead.

Almost all regulators list all driven supply signal names in their
regulator-names property. The exception is nvvdd_sv3, which is in turn
named 12 more different names on the schematic, so these were omitted
for brevity.
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra20-whistler.dts

@@ -261,6 +261,284 @@ tca6416: gpio@20 {
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		max8907@3c {
+			compatible = "maxim,max8907";
+			reg = <0x3c>;
+			interrupts = <0 86 0x4>;
+
+			mbatt-supply = <&usb0_vbus_reg>;
+			in-v1-supply = <&mbatt_reg>;
+			in-v2-supply = <&mbatt_reg>;
+			in-v3-supply = <&mbatt_reg>;
+			in1-supply = <&mbatt_reg>;
+			in2-supply = <&nvvdd_sv3_reg>;
+			in3-supply = <&mbatt_reg>;
+			in4-supply = <&mbatt_reg>;
+			in5-supply = <&mbatt_reg>;
+			in6-supply = <&mbatt_reg>;
+			in7-supply = <&mbatt_reg>;
+			in8-supply = <&mbatt_reg>;
+			in9-supply = <&mbatt_reg>;
+			in10-supply = <&mbatt_reg>;
+			in11-supply = <&mbatt_reg>;
+			in12-supply = <&mbatt_reg>;
+			in13-supply = <&mbatt_reg>;
+			in14-supply = <&mbatt_reg>;
+			in15-supply = <&mbatt_reg>;
+			in16-supply = <&mbatt_reg>;
+			in17-supply = <&nvvdd_sv3_reg>;
+			in18-supply = <&nvvdd_sv3_reg>;
+			in19-supply = <&mbatt_reg>;
+			in20-supply = <&mbatt_reg>;
+
+			regulators {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				mbatt_reg: regulator@0 {
+					reg = <0>;
+					regulator-compatible = "mbatt";
+					regulator-name = "vbat_pmu";
+					regulator-always-on;
+				};
+
+				regulator@1 {
+					reg = <1>;
+					regulator-compatible = "sd1";
+					regulator-name = "nvvdd_sv1,vdd_cpu_pmu";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				regulator@2 {
+					reg = <2>;
+					regulator-compatible = "sd2";
+					regulator-name = "nvvdd_sv2,vdd_core";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				nvvdd_sv3_reg: regulator@3 {
+					reg = <3>;
+					regulator-compatible = "sd3";
+					regulator-name = "nvvdd_sv3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				regulator@4 {
+					reg = <4>;
+					regulator-compatible = "ldo1";
+					regulator-name = "nvvdd_ldo1,vddio_rx_ddr,vcore_acc";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+				};
+
+				regulator@5 {
+					reg = <5>;
+					regulator-compatible = "ldo2";
+					regulator-name = "nvvdd_ldo2,avdd_pll*";
+					regulator-min-microvolt = <1100000>;
+					regulator-max-microvolt = <1100000>;
+					regulator-always-on;
+				};
+
+				regulator@6 {
+					reg = <6>;
+					regulator-compatible = "ldo3";
+					regulator-name = "nvvdd_ldo3,vcom_1v8b";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				regulator@7 {
+					reg = <7>;
+					regulator-compatible = "ldo4";
+					regulator-name = "nvvdd_ldo4,avdd_usb*";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+				};
+
+				regulator@8 {
+					reg = <8>;
+					regulator-compatible = "ldo5";
+					regulator-name = "nvvdd_ldo5,vcore_mmc,avdd_lcd1,vddio_1wire";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				regulator@9 {
+					reg = <9>;
+					regulator-compatible = "ldo6";
+					regulator-name = "nvvdd_ldo6,avdd_hdmi_pll";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				regulator@10 {
+					reg = <10>;
+					regulator-compatible = "ldo7";
+					regulator-name = "nvvdd_ldo7,avddio_audio";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				regulator@11 {
+					reg = <11>;
+					regulator-compatible = "ldo8";
+					regulator-name = "nvvdd_ldo8,vcom_3v0,vcore_cmps";
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+				};
+
+				regulator@12 {
+					reg = <12>;
+					regulator-compatible = "ldo9";
+					regulator-name = "nvvdd_ldo9,avdd_cam*";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				regulator@13 {
+					reg = <13>;
+					regulator-compatible = "ldo10";
+					regulator-name = "nvvdd_ldo10,avdd_usb_ic_3v0";
+					regulator-min-microvolt = <3000000>;
+					regulator-max-microvolt = <3000000>;
+					regulator-always-on;
+				};
+
+				regulator@14 {
+					reg = <14>;
+					regulator-compatible = "ldo11";
+					regulator-name = "nvvdd_ldo11,vddio_pex_clk,vcom_33,avdd_hdmi";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+				};
+
+				regulator@15 {
+					reg = <15>;
+					regulator-compatible = "ldo12";
+					regulator-name = "nvvdd_ldo12,vddio_sdio";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+					regulator-always-on;
+				};
+
+				regulator@16 {
+					reg = <16>;
+					regulator-compatible = "ldo13";
+					regulator-name = "nvvdd_ldo13,vcore_phtn,vdd_af";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				regulator@17 {
+					reg = <17>;
+					regulator-compatible = "ldo14";
+					regulator-name = "nvvdd_ldo14,avdd_vdac";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				regulator@18 {
+					reg = <18>;
+					regulator-compatible = "ldo15";
+					regulator-name = "nvvdd_ldo15,vcore_temp,vddio_hdcp";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+				};
+
+				regulator@19 {
+					reg = <19>;
+					regulator-compatible = "ldo16";
+					regulator-name = "nvvdd_ldo16,vdd_dbrtr";
+					regulator-min-microvolt = <1300000>;
+					regulator-max-microvolt = <1300000>;
+				};
+
+				regulator@20 {
+					reg = <20>;
+					regulator-compatible = "ldo17";
+					regulator-name = "nvvdd_ldo17,vddio_mipi";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				regulator@21 {
+					reg = <21>;
+					regulator-compatible = "ldo18";
+					regulator-name = "nvvdd_ldo18,vddio_vi,vcore_cam*";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				regulator@22 {
+					reg = <22>;
+					regulator-compatible = "ldo19";
+					regulator-name = "nvvdd_ldo19,avdd_lcd2,vddio_lx";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				regulator@23 {
+					reg = <23>;
+					regulator-compatible = "ldo20";
+					regulator-name = "nvvdd_ldo20,vddio_ddr_1v2,vddio_hsic,vcom_1v2";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				regulator@24 {
+					reg = <24>;
+					regulator-compatible = "out5v";
+					regulator-name = "usb0_vbus_reg";
+				};
+
+				regulator@25 {
+					reg = <25>;
+					regulator-compatible = "out33v";
+					regulator-name = "pmu_out3v3";
+				};
+
+				regulator@26 {
+					reg = <26>;
+					regulator-compatible = "bbat";
+					regulator-name = "pmu_bbat";
+					regulator-min-microvolt = <2400000>;
+					regulator-max-microvolt = <2400000>;
+					regulator-always-on;
+				};
+
+				regulator@27 {
+					reg = <27>;
+					regulator-compatible = "sdby";
+					regulator-name = "vdd_aon";
+					regulator-always-on;
+				};
+
+				regulator@28 {
+					reg = <28>;
+					regulator-compatible = "vrtc";
+					regulator-name = "vrtc,pmu_vccadc";
+					regulator-always-on;
+				};
+			};
+		};
+	};
+
+	pmc {
+		nvidia,invert-interrupt;
 	};
 
 	usb@c5000000 {
@@ -284,6 +562,21 @@ sdhci@c8000600 {
 		bus-width = <8>;
 	};
 
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb0_vbus_reg: regulator {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "usb0_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+	};
+
 	sound {
 		compatible = "nvidia,tegra-audio-wm8753-whistler",
 			     "nvidia,tegra-audio-wm8753";