linux-kernel - Re: [PATCH v7 00/33] Introduce QC USB SND audio offloading support

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Date:   Wed, 27 Sep 2023 17:46:09 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Wesley Cheng <quic_wcheng@...cinc.com>, mathias.nyman@...el.com,
        lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, srinivas.kandagatla@...aro.org,
        bgoswami@...cinc.com, Thinh.Nguyen@...opsys.com,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v7 00/33] Introduce QC USB SND audio offloading support

On Wed, Sep 27, 2023 at 05:04:06PM +0200, Mark Brown wrote:
> On Thu, Sep 21, 2023 at 02:48:10PM -0700, Wesley Cheng wrote:
> > Several Qualcomm based chipsets can support USB audio offloading to a
> > dedicated audio DSP, which can take over issuing transfers to the USB
> > host controller.  The intention is to reduce the load on the main
> > processors in the SoC, and allow them to be placed into lower power modes.
> 
> I had a few small comments in reply to some of the patches but overall
> the ASoC sides of this look fine to me.  I didn't really look at the USB
> side at all, I'm not sure I understand it enough to have any useful
> thoughts anyway.

Thanks for reviewing those portions, I'll look at the USB bits next week
when I get back from traveling.

greg k-h