ARM: tegra: apalis_t30: add missing regulators

Add missing regulators:
- reg_module_3v3_audio being VDDA supply of SGTL5000
- VDDD supply of SGTL5000 actually being reg_1v8_vio
- carrier board HDMI supply being reg_5v0
- carrier board reg_3v3 actually being backlight and panel power supply
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-apalis-eval.dts

@@ -41,6 +41,7 @@ rgb {
 		};
 		hdmi@54280000 {
 			status = "okay";
+			hdmi-supply = <&reg_5v0>;
 		};
 	};
 
@@ -185,6 +186,7 @@ backlight: backlight {
 		default-brightness-level = <6>;
 		/* BKL1_ON */
 		enable-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_3v3>;
 	};
 
 	gpio-keys {
@@ -207,6 +209,7 @@ panel: panel {
 		compatible = "edt,et057090dhu", "simple-panel";
 
 		backlight = <&backlight>;
+		power-supply = <&reg_3v3>;
 	};
 
 	pwmleds {
@@ -231,6 +234,13 @@ pwm3 {
 		};
 	};
 
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3.3V_SW";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
 	reg_5v0: regulator-5v0 {
 		compatible = "regulator-fixed";
 		regulator-name = "5V_SW";

arch/arm/boot/dts/tegra30-apalis.dtsi

@@ -465,7 +465,8 @@ i2c@7000d000 {
 		sgtl5000: codec@a {
 			compatible = "fsl,sgtl5000";
 			reg = <0x0a>;
-			VDDA-supply = <&reg_module_3v3>;
+			VDDA-supply = <&reg_module_3v3_audio>;
+			VDDD-supply = <&reg_1v8_vio>;
 			VDDIO-supply = <&reg_module_3v3>;
 			clocks = <&tegra_car TEGRA30_CLK_EXTERN1>;
 		};
@@ -758,6 +759,14 @@ reg_module_3v3: regulator-module-3v3 {
 		regulator-always-on;
 	};
 
+	reg_module_3v3_audio: regulator-module-3v3-audio {
+		compatible = "regulator-fixed";
+		regulator-name = "+V3.3_AUDIO_AVDD_S";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	sound {
 		compatible = "toradex,tegra-audio-sgtl5000-apalis_t30",
 			     "nvidia,tegra-audio-sgtl5000";