arm64: dts: qcom: qrb2210-rb1: add HDMI/I2S audio playback support

Add sound node and aDSP-related pieces to enable HDMI+I2S audio playback
support on Qualcomm QR2210 RB1 board. That is the only sound output
supported for now.

The audio playback is verified using the following commands:
amixer -c0 cset iface=MIXER,name='SEC_MI2S_RX Audio Mixer MultiMedia1' 1
aplay -D hw:0,0 /usr/share/sounds/alsa/Front_Center.wav

Cc: Srinivas Kandagatla <srini@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Link: https://lore.kernel.org/r/20251022-rb1_hdmi_audio-v3-3-0d38f777a547@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index 67ba508e92ba1f0ef3bcf8b248eae125de059869..43af25d17aa8314354b1ecb8617510cdd6c857a3 100644 (file)
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -188,6 +188,53 @@
                regulator-always-on;
                regulator-boot-on;
        };
+
+       sound {
+               compatible = "qcom,qrb2210-sndcard";
+               pinctrl-0 = <&lpi_i2s2_active>;
+               pinctrl-names = "default";
+               model = "Qualcomm-RB1-WSA8815-Speaker-DMIC0";
+
+               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-i2s-dai-link {
+                       link-name = "HDMI/I2S Playback";
+
+                       codec {
+                               sound-dai = <&lt9611_codec 0>;
+                       };
+
+                       cpu {
+                               sound-dai = <&q6afedai SECONDARY_MI2S_RX>;
+                       };
+
+                       platform {
+                               sound-dai = <&q6routing>;
+                       };
+               };
+       };
 };
 
 &cpu_pd0 {
@@ -323,6 +370,14 @@
        status = "okay";
 };
 
+/* SECONDARY I2S uses 1 I2S SD Line for audio on LT9611UXC HDMI Bridge */
+&q6afedai {
+       dai@18 {
+               reg = <SECONDARY_MI2S_RX>;
+               qcom,sd-lines = <0>;
+       };
+};
+
 &qupv3_id_0 {
        status = "okay";
 };