linux-kernel - [PATCH 7/7] arm64: dts: qcom: qrb4210-rb2: add HDMI audio playback support

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Date: Fri, 28 Jun 2024 02:07:15 +0100
From: Alexey Klimov <alexey.klimov@...aro.org>
To: linux-sound@...r.kernel.org,
	srinivas.kandagatla@...aro.org,
	bgoswami@...cinc.com,
	lgirdwood@...il.com,
	broonie@...nel.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	andersson@...nel.org,
	konrad.dybcio@...aro.org,
	perex@...ex.cz,
	tiwai@...e.com,
	linux-arm-msm@...r.kernel.org,
	alsa-devel@...a-project.org,
	devicetree@...r.kernel.org,
	elder@...aro.org,
	dmitry.baryshkov@...aro.org,
	krzysztof.kozlowski@...aro.org,
	caleb.connolly@...aro.org,
	linux-kernel@...r.kernel.org,
	alexey.klimov@...aro.org
Subject: [PATCH 7/7] arm64: dts: qcom: qrb4210-rb2: add HDMI audio playback support

Add sound node, dsp-related pieces and LPASS pinctrl to enable
HDMI audio support on Qualcomm QRB4210 RB2 board. That is the
only sound output supported for now.

Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 73 ++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index 2c39bb1b97db..9f4dde927be4 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -6,6 +6,8 @@
 /dts-v1/;
 
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <dt-bindings/sound/qcom,q6asm.h>
 #include <dt-bindings/usb/pd.h>
 #include "sm4250.dtsi"
 #include "pm6125.dtsi"
@@ -230,6 +232,10 @@ lt9611_out: endpoint {
 	};
 };
 
+&lpass_tlmm {
+	status = "okay";
+};
+
 &mdss {
 	status = "okay";
 };
@@ -307,6 +313,28 @@ &pon_resin {
 	status = "okay";
 };
 
+&q6asmdai {
+	dai@0 {
+		reg = <0>;
+	};
+
+	dai@1 {
+		reg = <1>;
+	};
+
+	dai@2 {
+		reg = <2>;
+	};
+};
+
+/* SECONDARY I2S Uses 1 I2S SD Lines for audio on LT9611 HDMI Bridge */
+&q6afedai {
+	dai@20 {
+		reg = <SECONDARY_MI2S_RX>;
+		qcom,sd-lines = <0>;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -535,6 +563,51 @@ &sleep_clk {
 	clock-frequency = <32000>;
 };
 
+&sound {
+	compatible = "qcom,qrb4210-rb2-sndcard";
+	pinctrl-0 = <&lpi_i2s2_active>;
+	pinctrl-names = "default";
+	model = "Qualcomm-RB2-WSA8815-Speakers-DMIC0";
+	audio-routing = "MM_DL1",  "MultiMedia1 Playback",
+			"MM_DL2",  "MultiMedia2 Playback";
+
+	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>;
+		};
+	};
+
+	hdmi-dai-link {
+		link-name = "HDMI Playback";
+		cpu {
+			sound-dai = <&q6afedai SECONDARY_MI2S_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+		};
+
+		codec {
+			sound-dai = <&lt9611_codec 0>;
+		};
+	};
+};
+
 &tlmm {
 	gpio-reserved-ranges = <43 2>, <49 1>, <54 1>,
 			       <56 3>, <61 2>, <64 1>,
-- 
2.45.2