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arm64: dts: qcom: qcm6490-fairphone-fp5: Enable USB audio offload support

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Enable USB audio offloading which allows to play audio via a USB-C
headset with lower power consumption and enabling some other features.

This can be used like the following:

  $ amixer -c0 cset name='USB_RX Audio Mixer MultiMedia1' On
  $ aplay --device=plughw:0,0 test.wav

Compared to regular playback to the USB sound card no xhci-hcd
interrupts appear during playback, instead the ADSP will be handling the
USB transfers.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250801-fp5-usb-audio-offload-v1-2-240fc213d3d3@fairphone.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Luca Weiss 2025-08-01 15:51:06 +02:00 committed by Bjorn Andersson
parent 55863887fa
commit c183cebe69
1 changed files with 16 additions and 0 deletions
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16
arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
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@ -1176,6 +1176,22 @@ platform {
sound-dai = <&q6routing>;
};
};
usb-dai-link {
link-name = "USB Playback";
codec {
sound-dai = <&q6usbdai USB_RX>;
};
cpu {
sound-dai = <&q6afedai USB_RX>;
};
platform {
sound-dai = <&q6routing>;
};
};
};
&spi13 {