linux-kernel - Re: [RFC PATCH v2 00/12] greybus: introduce CPC as transport layer

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Message-ID: <2025112610-hankering-muscular-d120@gregkh>
Date: Wed, 26 Nov 2025 13:33:53 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Damien Riégel <damien.riegel@...abs.com>
Cc: greybus-dev@...ts.linaro.org, Johan Hovold <johan@...nel.org>,
	Alex Elder <elder@...nel.org>, linux-kernel@...r.kernel.org,
	Silicon Labs Kernel Team <linux-devel@...abs.com>
Subject: Re: [RFC PATCH v2 00/12] greybus: introduce CPC as transport layer

On Tue, Nov 25, 2025 at 10:26:36AM -0500, Damien Riégel wrote:
> Hi Greg, Johan, and Alex,
> 
> On Fri Nov 14, 2025 at 10:07 AM EST, Damien Riégel wrote:
> > Hi,
> >
> > This patchset brings support for Silicon Labs' CPC (Co-Processor
> > Communication) protocol as transport layer for Greybus. This is
> > introduced as a module that sits between Greybus and CPC Host Device
> > Driver implementations, like SDIO or SPI, which are not part of this
> > RFC. If there's no push back with this RFC, the final patchset ready for
> > upstream will include the SDIO driver.
> 
> Gentle poke about this RFC, I would really appreciate any kind of
> feedback on it.

Given my workload, I don't respond to "RFC" as obviously it's not ready
for the submitter to feel that it should be applied yet :)

> If it's too big I can try to make it smaller to make the review easier.
> As we're committing to Greybus to enable the coexistence of different
> radio stacks in one chip, we want to make sure we're heading in the
> right direction and that our work has a chance to get upstreamed.

Always make review easier for us, so yes, please make it smaller!

thanks,

greg k-h