[PATCH 3/3] arm64: dts: qcom: nord-ride-embedded: Add sound support

[Shawn Guo]

From: Mohammad Rafi Shaik <mohammad.rafi.shaik@xxxxxxxxxxxxxxxx>

Enable audio on the nord-ride-sx board. Add a soundcard node using
the qcom,nord-ride-sndcard compatible with two DAI links:

  - PCM1681 playback over Tertiary MI2S RX
  - ADAU1979 capture over Tertiary MI2S TX

Add PCM1681/ADAU1979 codec nodes on I2C18, with the PCM1681 system
clock supplied via MCLK0. The DAC control lines come off a TCA6408 I/O
expander on the same bus, so add that too and hog its dac_enable and
click-pop-mute-n outputs, both of which have to be asserted before the
DAC produces sound.

Assisted-by: LLM
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@xxxxxxxxxxxxxxxx>
Signed-off-by: Shawn Guo <shengchao.guo@xxxxxxxxxxxxxxxx>
---
 .../boot/dts/qcom/nord-ride-embedded.dts      | 112 ++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/nord-ride-embedded.dts b/arch/arm64/boot/dts/qcom/nord-ride-embedded.dts
index f225c6d39b0a..0a201c19bfc0 100644
--- a/arch/arm64/boot/dts/qcom/nord-ride-embedded.dts
+++ b/arch/arm64/boot/dts/qcom/nord-ride-embedded.dts
@@ -8,6 +8,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
 
 #include "nord-embedded.dtsi"
 #include "pmau0102-nord.dtsi"
@@ -72,6 +73,46 @@ regulator-usb2-vbus {
 		enable-active-high;
 		regulator-always-on;
 	};
+
+	sound {
+		compatible = "qcom,nord-ride-sndcard";
+		model = "NORD-RIDE-SX";
+
+		pinctrl-0 = <&aud_intfc8_mi2s_active>, <&aud_mclk0_mira_active>;
+		pinctrl-names = "default";
+
+		aud-intfc8-mi2s-playback-dai-link {
+			link-name = "PCM1681 Playback";
+
+			codec {
+				sound-dai = <&pcm1681>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai TERTIARY_MI2S_RX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		aud-intfc8-mi2s-capture-dai-link {
+			link-name = "ADAU1979 Capture";
+
+			codec {
+				sound-dai = <&adau1979>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+	};
 };
 
 &apps_rsc {
@@ -490,6 +531,60 @@ usb_1_con_ss: endpoint {
 	};
 };
 
+&i2c18 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	expander0: gpio@20 {
+		compatible = "ti,tca6408";
+		reg = <0x20>;
+		#gpio-cells = <2>;
+		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		interrupts-extended = <&pmau0102_l_gpios 6 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&pmau0102_l_gpios 5 GPIO_ACTIVE_LOW>;
+
+		click-pop-mute-hog {
+			gpio-hog;
+			gpios = <5 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "click-pop-mute-n";
+		};
+
+		dac-enable-hog {
+			gpio-hog;
+			gpios = <6 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "dac_enable";
+		};
+	};
+
+	/* ADI ADAU1979 - 4-channel 24-bit ADC */
+	adau1979: adau1979@31 {
+		compatible = "adi,adau1979";
+		reg = <0x31>;
+
+		AVDD-supply = <&vreg_per_3p3>;
+		DVDD-supply = <&vreg_per_3p3>;
+		#sound-dai-cells = <0>;
+	};
+
+	/* PCM1681 DAC */
+	pcm1681: pcm1681@4c {
+		compatible = "ti,pcm1681";
+		reg = <0x4c>;
+
+		clocks = <&q6prmcc LPASS_CLK_ID_MCLK_1 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		clock-names = "sck";
+		assigned-clocks = <&q6prmcc LPASS_CLK_ID_MCLK_1 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		assigned-clock-rates = <12288000>;
+
+		#sound-dai-cells = <0>;
+	};
+};
+
 &pmau0102_i_gpios {
 	usb_pd_int_default: usb-pd-int-state {
 		pins = "gpio8";
@@ -500,6 +595,23 @@ usb_pd_int_default: usb-pd-int-state {
 	};
 };
 
+&q6apmbedai {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	dai@20 {
+		reg = <TERTIARY_MI2S_RX>;
+		clocks = <&q6prmcc LPASS_CLK_ID_QAIF_IF8_IBIT LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		clock-names = "bclk";
+	};
+
+	dai@21 {
+		reg = <TERTIARY_MI2S_TX>;
+		clocks = <&q6prmcc LPASS_CLK_ID_QAIF_IF8_IBIT LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		clock-names = "bclk";
+	};
+};
+
 &qupv3_0 {
 	firmware-name = "qcom/nord/qupv3fw.elf";
 
-- 
2.43.0