dtoverlays:adds overlays for Studio DAC8x soundcard driver

Adds two overlays for clock consumer and provider mode.
Only compatible with Pi 5 (bcm2712).

Signed-off-by: j-schambacher <joerg@hifiberry.com>

Author: j-schambacher

arch/arm/boot/dts/overlays/Makefile

@@ -105,6 +105,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	hifiberry-dacplushd.dtbo \
 	hifiberry-digi.dtbo \
 	hifiberry-digi-pro.dtbo \
+	hifiberry-studio-dac8x.dtbo \
+	hifiberry-studio-dac8x-pro.dtbo \
 	highperi.dtbo \
 	hy28a.dtbo \
 	hy28b.dtbo \

arch/arm/boot/dts/overlays/hifiberry-studio-dac8x-overlay.dts

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Definitions for HiFiBerry Studio DAC8x soundcard
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2712";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			rp1_i2s0_dac8x: rp1_i2s0_dac8x {
+				function = "i2s0";
+				pins = "gpio18", "gpio19", "gpio20",
+				       "gpio21", "gpio22", "gpio23",
+				       "gpio24", "gpio25", "gpio26",
+				       "gpio27";
+				bias-disable;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&i2s_clk_producer>;
+		__overlay__ {
+			pinctrl-names = "default";
+			pinctrl-0 = <&rp1_i2s0_dac8x>;
+			status = "okay";
+		};
+	};
+
+	fragment@2 {
+		target-path = "/";
+		__overlay__ {
+			dummy-codec {
+				#sound-dai-cells = <0>;
+				compatible = "snd-soc-dummy";
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&sound>;
+		__overlay__ {
+			compatible = "hifiberry,hifiberry-studio-dac8x";
+			i2s-controller = <&i2s_clk_producer>;
+			status = "okay";
+		};
+	};
+
+};

arch/arm/boot/dts/overlays/hifiberry-studio-dac8x-pro-overlay.dts

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+// Definitions for HiFiBerry Studio DAC8x PRO soundcard
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2712";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			rp1_i2s0_dac8x: rp1_i2s0_dac8x {
+				function = "i2s0";
+				pins = "gpio18", "gpio19", "gpio20",
+				       "gpio21", "gpio22", "gpio23",
+				       "gpio24", "gpio25", "gpio26",
+				       "gpio27";
+				bias-disable;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&i2s_clk_consumer>;
+		__overlay__ {
+			pinctrl-names = "default";
+			pinctrl-0 = <&rp1_i2s0_dac8x>;
+			status = "okay";
+		};
+	};
+
+	fragment@2 {
+		target-path = "/";
+		__overlay__ {
+			dummy-codec {
+				#sound-dai-cells = <0>;
+				compatible = "snd-soc-dummy";
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&sound>;
+		__overlay__ {
+			compatible = "hifiberry,hifiberry-studio-dac8x";
+			i2s-controller = <&i2s_clk_consumer>;
+			clk-provider;
+			status = "okay";
+		};
+	};
+
+};