Porting HiFiBerry digi pro and IQAudIO dac.

Change-Id: I0b332884925b0d7d769d291631a34e4aacc7400d
Reviewed-on: https://tp-biosrd-v02/gerrit/81612
Reviewed-by: Jamess Huang(黃以民) <Jamess_Huang@asus.com>
Tested-by: Jamess Huang(黃以民) <Jamess_Huang@asus.com>

Author: Angus_Wang

arch/arm/boot/dts/overlays/Makefile

@@ -5,6 +5,8 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
 	hifiberry-dac.dtbo \
 	hifiberry-dacplus.dtbo \
 	hifiberry-digi.dtbo \
+	hifiberry-digi-pro.dtbo \
+	iqaudio-dac.dtbo \
 	iqaudio-dacplus.dtbo \
 	iqaudio-digi-wm8804-audio.dtbo \
 	waveshare35a-tinker.dtbo \

arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts

@@ -0,0 +1,42 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3288";
+
+	fragment@0 {
+		target-path ="/sound-simple-card";
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@1 {
+		target = <&i2c1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			wm8804@3b {
+				#sound-dai-cells = <0>;
+				compatible = "wlf,wm8804";
+				reg = <0x3b>;
+				PVDD-supply = <&vdd_3v3_reg>;
+				DVDD-supply = <&vdd_3v3_reg>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target-path = "/sound-ext-card";
+		__overlay__ {
+			compatible = "hifiberry,hifiberry-digi";
+			i2s-controller = <&i2s>;
+			status = "okay";
+			clock44-gpio = <&gpio5 13 0>;
+			clock48-gpio = <&gpio5 16 0>;
+		};
+	};
+};

arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts

@@ -0,0 +1,45 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3288";
+
+	fragment@0 {
+		target-path ="/sound-simple-card";
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@1 {
+		target = <&i2c1>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			pcm5122@4c {
+				#sound-dai-cells = <0>;
+				compatible = "ti,pcm5122";
+				reg = <0x4c>;
+				AVDD-supply = <&vdd_3v3_reg>;
+				DVDD-supply = <&vdd_3v3_reg>;
+				CPVDD-supply = <&vdd_3v3_reg>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target-path = "/sound-ext-card";
+		frag2: __overlay__ {
+			compatible = "iqaudio,iqaudio-dac";
+			i2s-controller = <&i2s>;
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?";
+	};
+};