Hi Krzysztof,
On 3/10/2023 12:56 AM, Krzysztof Kozlowski wrote:
On 09/03/2023 00:57, Wesley Cheng wrote:
Add an example on enabling of USB offload for the Q6DSP. The routing can
be done by the mixer, which can pass the multimedia stream to the USB
backend.
Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
You still miss binding change to APR/GPR. Where is the USB DAI going to sit?
My initial idea is to have it as part of the q6afe APR node (as a
child). It would need to issues some transactions over APR to the Q6AFE
port on the audio DSP, which was the main reason for this.
Something like:
q6afe: apr-service@4 {
compatible = "qcom,q6afe";
reg = <APR_SVC_AFE>;
q6afedai: dais {
compatible = "qcom,q6afe-dais";
#address-cells = <1>;
#size-cells = <0>;
#sound-dai-cells = <1>;
};
...
usbdai: usbd {
compatible = "qcom,q6usb";
#sound-dai-cells = <1>;
iommus = <&apps_smmu 0x180f 0x0>;
qcom,usb-audio-stream-id = <0xf>;
qcom,usb-audio-intr-num = <2>;
};
};
I think the only modification I would probably make is to have an
example of how to add the q6usb node to enable the audio offloading.
Thanks,
Wesley Cheng
Best regards,
Krzysztof
