linux-kernel - [PATCH 3/4] arm64: dts: arduino-imola: add support for sound

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Message-ID: <20260209142428.214428-4-srinivas.kandagatla@oss.qualcomm.com>
Date: Mon,  9 Feb 2026 14:24:27 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
To: lee@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
        andersson@...nel.org, konradybcio@...nel.org, sboyd@...nel.org
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, alexey.klimov@...aro.org,
        r.mereu@...uino.cc,
        Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
Subject: [PATCH 3/4] arm64: dts: arduino-imola: add support for sound

Add support for sound on Arduino UNO Q board, which includes
- Headset playback and record.
- Lineout

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
---
 .../boot/dts/qcom/qrb2210-arduino-imola.dts   | 137 ++++++++++++++++++
 1 file changed, 137 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
index 197ab6eb1666..f36f7ff96252 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
@@ -109,6 +109,98 @@ multi-led {
 		leds = <&ledr>, <&ledg>, <&ledb>;
 	};
 
+	sound {
+		compatible = "qcom,qrb2210-sndcard";
+		model = "Arduino-Imola-HPH-LOUT";
+		audio-routing =	"IN1_HPHL", "HPHL_OUT",
+				"IN2_HPHR", "HPHR_OUT",
+				"AMIC2", "MIC BIAS2";
+
+		mm1-dai-link {
+			link-name = "MultiMedia1";
+
+			cpu {
+				sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
+			};
+		};
+
+		mm2-dai-link {
+			link-name = "MultiMedia2";
+
+			cpu {
+				sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA2>;
+			};
+		};
+
+		mm3-dai-link {
+			link-name = "MultiMedia3";
+
+			cpu {
+				sound-dai = <&q6asmdai  MSM_FRONTEND_DAI_MULTIMEDIA3>;
+			};
+		};
+
+		hph-playback-dai-link {
+			link-name = "HPH Playback";
+			cpu {
+				sound-dai = <&q6afedai RX_CODEC_DMA_RX_0>;
+			};
+
+			platform {
+				sound-dai = <&q6routing>;
+			};
+
+			codec {
+				sound-dai = <&pmic4125_codec 0>, <&swr1 0>, <&rxmacro 0>;
+			};
+		};
+
+		lo-playback-dai-link {
+			link-name = "LO Playback";
+			cpu {
+				sound-dai = <&q6afedai RX_CODEC_DMA_RX_0>;
+			};
+
+			platform {
+				sound-dai = <&q6routing>;
+			};
+
+			codec {
+				sound-dai = <&pmic4125_codec 0>, <&swr1 0>, <&rxmacro 0>;
+			};
+		};
+
+		ear-playback-dai-link {
+			link-name = "Ear Playback";
+			cpu {
+				sound-dai = <&q6afedai RX_CODEC_DMA_RX_0>;
+			};
+
+			platform {
+				sound-dai = <&q6routing>;
+			};
+
+			codec {
+				sound-dai = <&pmic4125_codec 0>, <&swr1 0>, <&rxmacro 0>;
+			};
+		};
+
+		hph-capture-dai-link {
+			link-name = "HP Capture";
+			cpu {
+				sound-dai = <&q6afedai TX_CODEC_DMA_TX_3>;
+			};
+
+			platform {
+				sound-dai = <&q6routing>;
+			};
+
+			codec {
+				sound-dai = <&pmic4125_codec 1>, <&swr0 0>, <&txmacro 0>;
+			};
+		};
+	};
+
 	/* PM4125 charger out, supplied by VBAT */
 	vph_pwr: regulator-vph-pwr {
 		compatible = "regulator-fixed";
@@ -333,6 +425,51 @@ spidev@0 {
 	};
 };
 
+&spmi_bus {
+	pmic@0 {
+		pmic4125_codec: audio-codec@...0{
+			compatible = "qcom,pm4125-codec";
+			reg =<0xf000>;
+			vdd-io-supply = <&pm4125_l15>;
+			vdd-cp-supply = <&pm4125_s4>;
+			vdd-pa-vpos-supply = <&pm4125_s4>;
+
+			vdd-mic-bias-supply = <&pm4125_l22>;
+			qcom,micbias1-microvolt = <1800000>;
+			qcom,micbias2-microvolt = <1800000>;
+			qcom,micbias3-microvolt = <1800000>;
+
+			qcom,rx-device = <&pm4125_rx>;
+			qcom,tx-device = <&pm4125_tx>;
+			#sound-dai-cells = <1>;
+		};
+	};
+};
+
+&swr0 {
+	pinctrl-0 = <&lpass_tx_swr_active>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pm4125_tx: codec@0,3 {
+		compatible = "sdw20217010c00";
+		reg = <0 3>;
+		qcom,tx-port-mapping = <1 1 2 3>;
+	};
+};
+
+&swr1 {
+	pinctrl-0 = <&lpass_rx_swr_active>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pm4125_rx: codec@0,4 {
+		compatible = "sdw20217010c00";
+		reg = <0 4>;
+		qcom,rx-port-mapping = <1 2 3 4 5>;
+	};
+};
+
 &tlmm {
 	spidev_cs: spidev-cs-state {
 		pins = "gpio17";
-- 
2.47.3