linux-kernel - [PATCH v3 10/12] arm64: dts: qcom: qrb4210-rb2: enable wsa881x amplifier

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Message-Id: <20250522-rb2_audio_v3-v3-10-9eeb08cab9dc@linaro.org>
Date: Thu, 22 May 2025 18:41:00 +0100
From: Alexey Klimov <alexey.klimov@...aro.org>
To: Srinivas Kandagatla <srini@...nel.org>, Mark Brown <broonie@...nel.org>, 
 linux-sound@...r.kernel.org
Cc: Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Dmitry Baryshkov <lumag@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
 Srinivas Kandagatla <srini@...nel.org>
Subject: [PATCH v3 10/12] arm64: dts: qcom: qrb4210-rb2: enable wsa881x
 amplifier

One WSA881X amplifier is connected on QRB4210 RB2 board
hence only mono speaker is supported. This amplifier is set
to work in analog mode only. Also add required powerdown
pin/gpio.

Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index 6bce63720cfffd8e0e619937fb1f365cbbbcb283..4b878e585227ee6b3b362108be96aad99acba21d 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -270,6 +270,24 @@ zap-shader {
 	};
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	wsa881x: amplifier@f {
+		compatible = "qcom,wsa8815";
+		reg = <0x0f>;
+		pinctrl-0 = <&wsa_en_active>;
+		pinctrl-names = "default";
+		clocks = <&q6afecc LPASS_CLK_ID_MCLK_2 LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+		powerdown-gpios = <&lpass_tlmm 16 GPIO_ACTIVE_LOW>;
+		mclk-gpios = <&lpass_tlmm 18 GPIO_ACTIVE_HIGH>;
+		sound-name-prefix = "SpkrMono";
+		#sound-dai-cells = <0>;
+		#thermal-sensor-cells = <0>;
+	};
+};
+
 &i2c2_gpio {
 	clock-frequency = <400000>;
 	status = "okay";
@@ -736,6 +754,14 @@ wcd_reset_n: wcd-reset-n-state {
 		drive-strength = <16>;
 		output-high;
 	};
+
+	wsa_en_active: wsa-en-active-state {
+		pins = "gpio106";
+		function = "gpio";
+		drive-strength = <16>;
+		bias-disable;
+		output-high;
+	};
 };
 
 &uart3 {

-- 
2.47.2