@@ -14,6 +14,8 @@
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <dt-bindings/sound/qcom,q6asm.h>
#include "sc7280.dtsi"
#include "pm7250b.dtsi"
#include "pm7325.dtsi"
@@ -841,6 +843,12 @@ &pon_resin {
status = "okay";
};
+&q6afedai {
+ dai@104 {
+ reg = <DISPLAY_PORT_RX>;
+ };
+};
+
&qup_spi13_cs {
drive-strength = <6>;
bias-disable;
@@ -914,6 +922,35 @@ &sdhc_2 {
status = "okay";
};
+&sound {
+ compatible = "qcom,qcm6490-sndcard";
+ model = "Fairphone 5";
+
+ mm1-dai-link {
+ link-name = "MultiMedia1";
+
+ cpu {
+ sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
+ };
+ };
+
+ displayport-rx-dai-link {
+ link-name = "DisplayPort Playback";
+
+ cpu {
+ sound-dai = <&q6afedai DISPLAY_PORT_RX>;
+ };
+
+ platform {
+ sound-dai = <&q6routing>;
+ };
+
+ codec {
+ sound-dai = <&mdss_dp>;
+ };
+ };
+};
+
&spi13 {
status = "okay";
Add the required nodes for sound playback via a connected external display (DisplayPort over USB-C). In user space just the following route needs to be set (e.g. using ALSA UCM): amixer -c0 cset name='DISPLAY_PORT_RX Audio Mixer MultiMedia1' 1 Afterwards one can play audio on the MultiMedia1 sound device, e.g.: aplay -D plughw:0,0 test.wav Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> --- (from cover letter) Unfortunately DisplayPort enablement itself for Fairphone 5 is not upstream yet. This is blocked by DSI display bringup upstream which is blocked by DSC 1:1:1 not being supported upstream yet and just working with a hacky patch. Nevertheless, DisplayPort audio was validated working with no additional sound-related changes so once DisplayPort gets enabled, sound should also just work upstream. --- arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+)