From b56967450d3aa37a7b0fc296de8a1a64801ae09f Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Fri, 10 Feb 2023 02:29:00 +0000
Subject: [PATCH 3/3] WIP: arm64: dts: meson: gxbb-kii-pro: add initial audio
 support

Add initial support for HDMI and S/PDIF audio output.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-kii-pro.dts   | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
index 435ae2aa4..b6ee76011 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
@@ -9,11 +9,19 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "videostrong,kii-pro", "amlogic,meson-gxbb";
 	model = "Videostrong KII Pro";
 
+	spdif_dit: audio-codec-0 {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+		status = "okay";
+		sound-name-prefix = "DIT";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -35,6 +43,59 @@ button-reset {
 			gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "KII-PRO";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
+
+			codec-0 {
+				sound-dai = <&spdif_dit>;
+			};
+		};
+
+		dai-link-4 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
+	pinctrl-0 = <&spdif_out_y_pins>;
+	pinctrl-names = "default";
 };
 
 &ethmac {
-- 
2.39.1