1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/qcom,q6usb.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm ASoC DPCM USB backend DAI
8
9 maintainers:
10 - Wesley Cheng <quic_wcheng@quicinc.com>
11
12 description:
13 The USB port is a supported AFE path on the Q6 DSP. This ASoC DPCM
14 backend DAI will communicate the required settings to initialize the
15 XHCI host controller properly for enabling the offloaded audio stream.
16 Parameters defined under this node will carry settings, which will be
17 passed along during the QMI stream enable request and configuration of
18 the XHCI host controller.
19
20 allOf:
21 - $ref: dai-common.yaml#
22
23 properties:
24 compatible:
25 enum:
26 - qcom,q6usb
27
28 iommus:
29 maxItems: 1
30
31 "#sound-dai-cells":
32 const: 1
33
34 qcom,usb-audio-intr-idx:
35 description:
36 Desired XHCI interrupter number to use. Depending on the audio DSP
37 on the platform, it will operate on a specific XHCI interrupter.
38 $ref: /schemas/types.yaml#/definitions/uint16
39 maximum: 8
40
41 required:
42 - compatible
43 - "#sound-dai-cells"
44 - qcom,usb-audio-intr-idx
45
46 additionalProperties: false
47
48 examples:
49 - |
50 dais {
51 compatible = "qcom,q6usb";
52 #sound-dai-cells = <1>;
53 iommus = <&apps_smmu 0x180f 0x0>;
54 qcom,usb-audio-intr-idx = /bits/ 16 <2>;
55 };
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