arm64: dts: uniphier: add fixed regulators for audio codec

This patch adds regulators that have fixed voltage for audio codec
on UniPhier LD11/20 Global boards. This patch fixes warnings about
TAS57xx audio codec such as "tas571x 0-001b: 0-001b supply AVDD
not found, using dummy regulator".
Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts

@@ -39,6 +39,20 @@ memory@80000000 {
 		reg = <0 0x80000000 0 0x40000000>;
 	};
 
+	dvdd_reg: reg-fixed {
+		compatible = "regulator-fixed";
+		regulator-name = "DVDD";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	amp_vcc_reg: reg-fixed {
+		compatible = "regulator-fixed";
+		regulator-name = "AMP_VCC";
+		regulator-min-microvolt = <24000000>;
+		regulator-max-microvolt = <24000000>;
+	};
+
 	sound {
 		compatible = "audio-graph-card";
 		label = "UniPhier LD11";
@@ -103,6 +117,12 @@ tas5707a@1d {
 		reset-gpios = <&gpio UNIPHIER_GPIO_PORT(23, 4) GPIO_ACTIVE_LOW>;
 		pdn-gpios = <&gpio UNIPHIER_GPIO_PORT(23, 5) GPIO_ACTIVE_LOW>;
 		#sound-dai-cells = <0>;
+		AVDD-supply = <&dvdd_reg>;
+		DVDD-supply = <&dvdd_reg>;
+		PVDD_A-supply = <&amp_vcc_reg>;
+		PVDD_B-supply = <&amp_vcc_reg>;
+		PVDD_C-supply = <&amp_vcc_reg>;
+		PVDD_D-supply = <&amp_vcc_reg>;
 
 		port@0 {
 			tas_speaker: endpoint {

arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts

@@ -39,6 +39,20 @@ memory@80000000 {
 		reg = <0 0x80000000 0 0xc0000000>;
 	};
 
+	dvdd_reg: reg-fixed {
+		compatible = "regulator-fixed";
+		regulator-name = "DVDD";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	amp_vcc_reg: reg-fixed {
+		compatible = "regulator-fixed";
+		regulator-name = "AMP_VCC";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
 	sound {
 		compatible = "audio-graph-card";
 		label = "UniPhier LD20";
@@ -103,6 +117,12 @@ tas5707@1b {
 		reset-gpios = <&gpio UNIPHIER_GPIO_PORT(0, 0) GPIO_ACTIVE_LOW>;
 		pdn-gpios = <&gpio UNIPHIER_GPIO_PORT(0, 1) GPIO_ACTIVE_LOW>;
 		#sound-dai-cells = <0>;
+		AVDD-supply = <&dvdd_reg>;
+		DVDD-supply = <&dvdd_reg>;
+		PVDD_A-supply = <&amp_vcc_reg>;
+		PVDD_B-supply = <&amp_vcc_reg>;
+		PVDD_C-supply = <&amp_vcc_reg>;
+		PVDD_D-supply = <&amp_vcc_reg>;
 
 		port@0 {
 			tas_speaker: endpoint {