Add audio support for the Thundercomm RubikPi3 board:
- Enable AudioReach via qcs6490-audioreach.dtsi
- Add ES8316 codec on I2C0 with MCLK from LPASS PRM and jack detection
- Add fixed 3.3V regulator for ES8316 power supply
- Add MI2S playback/capture dai-links for ES8316
- Add HDMI audio via LT9611 bridge on quaternary MI2S
- Add SPDIF TX/RX on tertiary MI2S exposed at the board 40‑pin header
- Add LPASS pin configurations for quaternary MI2S and LPI I2S1

Signed-off-by: Hongyang Zhao <hongyang.zhao@thundersoft.com>
---
 .../boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts | 191 +++++++++++++++++++++
 1 file changed, 191 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
index 0b64a0b91202..6831a576fefb 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
@@ -19,6 +19,7 @@
 #include "pm7325.dtsi"
 #include "pm8350c.dtsi" /* PM7350C */
 #include "pmk8350.dtsi" /* PMK7325 */
+#include "qcs6490-audioreach.dtsi"
 
 /delete-node/ &adsp_mem;
 /delete-node/ &cdsp_mem;
@@ -128,6 +129,23 @@ fan0: pwm-fan {
 		pinctrl-names = "default";
 	};
 
+	vreg_es8316_3v3: vreg-es8316-3v3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "vreg_es8316_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 117 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&es8316_power_on>;
+		pinctrl-names = "default";
+
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	vreg_eth_1v8: regulator-eth-1v8 {
 		compatible = "regulator-fixed";
 
@@ -364,6 +382,16 @@ usb1_sbu_mux: endpoint {
 			};
 		};
 	};
+
+	spdif_rx: spdif-rx {
+		compatible = "linux,spdif-dir";
+		#sound-dai-cells = <0>;
+	};
+
+	spdif_tx: spdif-tx {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
 };
 
 &apps_rsc {
@@ -727,6 +755,23 @@ &gpu_zap_shader {
 	firmware-name = "qcom/qcs6490/a660_zap.mbn";
 };
 
+&i2c0 {
+	status = "okay";
+
+	es8316: audio-codec@11 {
+		compatible = "everest,es8316";
+		reg = <0x11>;
+		#sound-dai-cells = <0>;
+
+		clocks = <&q6prmcc LPASS_CLK_ID_MCLK_1 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		clock-names = "mclk";
+
+		interrupts-extended = <&tlmm 63 IRQ_TYPE_EDGE_BOTH>;
+
+		everest,jack-detect-inverted;
+	};
+};
+
 /* Pin 3, 5 in 40-pin connector */
 &i2c1 {
 	status = "okay";
@@ -740,6 +785,7 @@ &i2c9 {
 	lt9611_codec: hdmi-bridge@39 {
 		compatible = "lontium,lt9611";
 		reg = <0x39>;
+		#sound-dai-cells = <1>;
 
 		interrupts-extended = <&tlmm 20 IRQ_TYPE_EDGE_FALLING>;
 		reset-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
@@ -970,6 +1016,15 @@ &pon_resin {
 	status = "okay";
 };
 
+&q6apmbedai {
+	pinctrl-0 = <&mi2s0_data0>, <&mi2s0_data1>, <&mi2s0_mclk>,
+		    <&mi2s0_sclk>, <&mi2s0_ws>,
+		    <&lpass_qua_mi2s_sclk>, <&lpass_qua_mi2s_ws>, <&lpass_qua_mi2s_data>,
+		    <&lpass_lpi_i2s1_clk>, <&lpass_lpi_i2s1_ws>,
+		    <&lpass_lpi_i2s1_data0>, <&lpass_lpi_i2s1_data1>;
+	pinctrl-names = "default";
+};
+
 &qupv3_id_0 {
 	firmware-name = "qcom/qcm6490/qupv3fw.elf";
 
@@ -1006,6 +1061,91 @@ &sdhc_2 {
 	status = "okay";
 };
 
+&sound {
+	compatible = "qcom,qcs6490-rb3gen2-sndcard";
+	model = "QCS6490-Thundercomm-RubikPi3";
+
+	mi2s-playback-dai-link {
+		link-name = "MI2S-LPAIF-RX-PRIMARY";
+
+		codec {
+			sound-dai = <&es8316>;
+		};
+
+		cpu {
+			sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6apm>;
+		};
+	};
+
+	mi2s-capture-dai-link {
+		link-name = "MI2S-LPAIF-TX-PRIMARY";
+
+		codec {
+			sound-dai = <&es8316>;
+		};
+
+		cpu {
+			sound-dai = <&q6apmbedai PRIMARY_MI2S_TX>;
+		};
+
+		platform {
+			sound-dai = <&q6apm>;
+		};
+	};
+
+	quaternary-mi2s-playback-dai-link {
+		link-name = "MI2S-LPAIF_RXTX-RX-PRIMARY";
+
+		codec {
+			sound-dai = <&lt9611_codec 0>;
+		};
+
+		cpu {
+			sound-dai = <&q6apmbedai QUATERNARY_MI2S_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6apm>;
+		};
+	};
+
+	tert-mi2s-playback-dai-link {
+		link-name = "MI2S-LPAIF-RX-TERTIARY";
+
+		codec {
+			sound-dai = <&spdif_tx>;
+		};
+
+		cpu {
+			sound-dai = <&q6apmbedai TERTIARY_MI2S_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6apm>;
+		};
+	};
+
+	tert-mi2s-capture-dai-link {
+		link-name = "MI2S-LPAIF-TX-TERTIARY";
+
+		codec {
+			sound-dai = <&spdif_rx>;
+		};
+
+		cpu {
+			sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
+		};
+
+		platform {
+			sound-dai = <&q6apm>;
+		};
+	};
+};
+
 /* Pin 19, 21, 23, 24 in 40-pin connector */
 &spi12 {
 	status = "okay";
@@ -1220,6 +1360,50 @@ &sdc2_data {
 	drive-strength = <10>;
 };
 
+&lpass_tlmm {
+	lpass_qua_mi2s_sclk: qua-mi2s-sclk-state {
+		pins = "gpio0";
+		function = "qua_mi2s_sclk";
+		drive-strength = <8>;
+		bias-disable;
+		output-high;
+	};
+
+	lpass_qua_mi2s_ws: qua-mi2s-ws-state {
+		pins = "gpio1";
+		function = "qua_mi2s_ws";
+		drive-strength = <8>;
+		output-high;
+	};
+
+	lpass_qua_mi2s_data: qua-mi2s-data-state {
+		pins = "gpio2", "gpio3", "gpio4";
+		function = "qua_mi2s_data";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	lpass_lpi_i2s1_clk: lpi-i2s1-clk-state {
+		pins = "gpio6";
+		function = "i2s1_clk";
+	};
+
+	lpass_lpi_i2s1_ws: lpi-i2s1-ws-state {
+		pins = "gpio7";
+		function = "i2s1_ws";
+	};
+
+	lpass_lpi_i2s1_data0: lpi-i2s1-data0-state {
+		pins = "gpio8";
+		function = "i2s1_data";
+	};
+
+	lpass_lpi_i2s1_data1: lpi-i2s1-data1-state {
+		pins = "gpio9";
+		function = "i2s1_data";
+	};
+};
+
 &tlmm {
 	pcie1_reset_n: pcie1-reset-n-state {
 		pins = "gpio2";
@@ -1387,6 +1571,13 @@ pcie0_wake_n: pcie0-wake-n-state {
 		bias-pull-up;
 	};
 
+	es8316_power_on: es8316-power-on-state {
+		pins = "gpio117";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
 	wifi_power_on: wifi-power-on-state {
 		pins = "gpio125";
 		function = "gpio";

-- 
2.43.0