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Merge "dt-bindings: Add USB audio QMI driver bindings"

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qctecmdr 2019-12-30 18:34:57 -08:00 • committed by Gerrit - the friendly Code Review server
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bindings/sound/qcom-usb-audio-qmi-dev.txt Normal file
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QTI USB Audio QMI Device
USB Audio QMI device is used to attach to remote processor IOMMU and
map USB Audio driver specific memory to iova to share with remote
processor.
Required Properties:
- compatible : "qcom,usb-audio-qmi-dev"
- iommus : A list of phandle and IOMMU specifier pairs that describe the
IOMMU master interfaces of the device.
- qcom,usb-audio-stream-id : Stream id is prepended to iova before passing
iova to remote processor. This allows remote processor to access iova.
- qcom,usb-audio-intr-num : Interrupter number for external sub system
destination.
Example:
usb_audio_qmi_dev {
compatible = "qcom,usb-audio-qmi-dev";
iommus = <&lpass_q6_smmu 12>;
qcom,usb-audio-stream-id = <12>;
qcom,usb-audio-intr-num = <1>;
};