linux-kernel - [PATCH] arm64: dts: qcom: x1e80100-crd: add USB DisplayPort audio

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Date: Tue,  4 Jun 2024 11:49:47 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH] arm64: dts: qcom: x1e80100-crd: add USB DisplayPort audio

Add support for playing audio over USB DisplayPort (the two left USB-C
ports on the CRD device).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 34 +++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
index c39dd493a3af..08032c02fc22 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
@@ -189,6 +189,38 @@ sound {
 				"VA DMIC3", "VA MIC BIAS1",
 				"TX SWR_INPUT1", "ADC2_OUTPUT";
 
+		displayport-0-dai-link {
+			link-name = "DisplayPort0 Playback";
+
+			cpu {
+				sound-dai = <&q6apmbedai DISPLAY_PORT_RX_0>;
+			};
+
+			codec {
+				sound-dai = <&mdss_dp0>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		displayport-1-dai-link {
+			link-name = "DisplayPort1 Playback";
+
+			cpu {
+				sound-dai = <&q6apmbedai DISPLAY_PORT_RX_1>;
+			};
+
+			codec {
+				sound-dai = <&mdss_dp1>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
 		wcd-playback-dai-link {
 			link-name = "WCD Playback";
 
@@ -836,6 +868,7 @@ &mdss {
 };
 
 &mdss_dp0 {
+	sound-name-prefix = "DisplayPort0";
 	status = "okay";
 };
 
@@ -845,6 +878,7 @@ &mdss_dp0_out {
 };
 
 &mdss_dp1 {
+	sound-name-prefix = "DisplayPort1";
 	status = "okay";
 };
 
-- 
2.43.0