[PATCH v2 2/2] arm64: dts: qcom: x1e78100-t14s: Add audio playback over DisplayPort
From: Krzysztof Kozlowski
Date: Wed Dec 17 2025 - 07:07:45 EST
Add necessary DAI links and DAI name prefixes to enable audio playback
over USB/DisplayPort and HDMI. The HDMI port is not yet enabled, but it
should carry respective DAI name prefix regardless.
Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
---
ALSA UCM and audioreach topology will follow up as well.
Changes in v2:
1. Move name prefixes to patch #1
2. Rb tag
---
.../qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
index 80ece9db875a..7aee9a20c6df 100644
--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
@@ -351,6 +351,54 @@ sound {
"VA DMIC1", "VA MIC BIAS1",
"TX SWR_INPUT1", "ADC2_OUTPUT";
+ displayport-0-dai-link {
+ link-name = "DisplayPort0 Playback";
+
+ codec {
+ sound-dai = <&mdss_dp0>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai DISPLAY_PORT_RX_0>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ displayport-1-dai-link {
+ link-name = "DisplayPort1 Playback";
+
+ codec {
+ sound-dai = <&mdss_dp1>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai DISPLAY_PORT_RX_1>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
+ displayport-2-dai-link {
+ link-name = "DisplayPort2 Playback";
+
+ codec {
+ sound-dai = <&mdss_dp2>;
+ };
+
+ cpu {
+ sound-dai = <&q6apmbedai DISPLAY_PORT_RX_2>;
+ };
+
+ platform {
+ sound-dai = <&q6apm>;
+ };
+ };
+
wcd-playback-dai-link {
link-name = "WCD Playback";
--
2.51.0