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SubjectRe: [PATCH v6 23/33] ASoC: dt-bindings: Add Q6USB backend
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On 16.09.2023 02:10, Wesley Cheng wrote:
> Add a dt-binding to describe the definition of enabling the Q6 USB backend
> device for audio offloading. The node carries information, which is passed
> along to the QC USB SND class driver counterpart. These parameters will be
> utilized during QMI stream enable requests.
>
> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
> ---
> .../devicetree/bindings/sound/qcom,q6usb.yaml | 55 +++++++++++++++++++
> 1 file changed, 55 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
>
> diff --git a/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> new file mode 100644
> index 000000000000..51ff0b1ffa2d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,q6usb.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/qcom,q6usb-dais.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm ASoC DPCM USB backend DAI
> +
> +maintainers:
> + - Wesley Cheng <quic_wcheng@quicinc.com>
> +
> +description:
> + The USB port is a supported AFE path on the Q6 DSP. This ASoC DPCM
> + backend DAI will communicate the required settings to initialize the
> + XHCI host controller properly for enabling the offloaded audio stream.
> + Parameters defined under this node will carry settings, which will be
> + passed along during the QMI stream enable request and configuration of
> + the XHCI host controller.
> +
> +allOf:
> + - $ref: dai-common.yaml#
> +
> +properties:
> + compatible:
> + enum:
> + - qcom,q6usb
> +
> + iommus:
> + maxItems: 1
> +
> + "#sound-dai-cells":
> + const: 1
> +
> + qcom,usb-audio-intr-num:
> + description:
> + Desired XHCI interrupter number to use. Depending on the audio DSP
> + on the platform, it will operate on a specific XHCI interrupter.
So is this the number of interrupters to be used or the index of
a single interrupter? If the latter, then "num" is definitely way
too ambiguous.

Konrad

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