linux-kernel - Re: [RFC PATCH 00/14] Introduce QC USB SND audio offloading support

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Message-ID: <Y6sC5e9Zrd2JWTHU@sirena.org.uk>
Date:   Tue, 27 Dec 2022 14:36:21 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Wesley Cheng <quic_wcheng@...cinc.com>,
        srinivas.kandagatla@...aro.org, mathias.nyman@...el.com,
        perex@...ex.cz, lgirdwood@...il.com, andersson@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, Thinh.Nguyen@...opsys.com,
        bgoswami@...cinc.com, tiwai@...e.com, robh+dt@...nel.org,
        agross@...nel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-usb@...r.kernel.org,
        quic_jackp@...cinc.com, quic_plai@...cinc.com
Subject: Re: [RFC PATCH 00/14] Introduce QC USB SND audio offloading support

On Sat, Dec 24, 2022 at 07:45:38AM +0100, Greg KH wrote:
> On Fri, Dec 23, 2022 at 03:31:46PM -0800, Wesley Cheng wrote:

> > soc-usb: Intention is to treat a USB port similar to a headphone jack.
> > The port is always present on the device, but cable/pin status can be
> > enabled/disabled.  Expose mechanisms for USB backend ASoC drivers to
> > communicate with USB SND.

> > Create a USB backend for Q6DSP:
> > q6usb: Basic backend driver that will be responsible for maintaining the
> > resources needed to initiate a playback stream using the Q6DSP.  Will

> This looks to duplicate a bunch of the same things that a number of
> different google developers have posted recently.  Please work with them
> to come up with a unified set of patches that you all can agree with,
> AND get them to sign off on the changes before resubmitting them.

> This uncoordinated drip of patches from different people doing the same
> thing is almost impossible to review from our side, as I'm sure you can
> imagine.

I have to say this is the first I've heard of any such patches other
than from the Qualcomm people and I can't immediately see anything that
was on the list either, though I might be missing something since I
don't have the subject or anything.  If other people send things again
it's probably good to suggest they copy in audio people and lists.

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