linux-kernel - Re: [PATCH v3 1/3] staging: zynpu: Add driver support for ARM(China) ZHOUYI AI accelerator

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Message-ID: <20211126071444.GA32426@LAPTOP-UKSR4ENP.internal.baidu.com>
Date:   Fri, 26 Nov 2021 15:14:44 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-staging@...ts.linux.dev>
Subject: Re: [PATCH v3 1/3] staging: zynpu: Add driver support for ARM(China)
 ZHOUYI AI accelerator

On 26 11月 21 07:43:34, Greg Kroah-Hartman wrote:
> On Fri, Nov 26, 2021 at 10:18:59AM +0800, Cai Huoqing wrote:
> > ZHOUYI NPU is an AI accelerator chip which is integrated into ARM SOC,
> > such as Allwinner R329 SOC.
> > Add driver support for this AI accelerator here.
> > 
> > This driver is not standard linux style, there are some clean up works,
> > fixing code style, refactorring.
> > And it only works with a closed source usermode driver, so need to
> > reverse the libraries, and impelement it, then open source
> > the usermode driver.
> > So add this driver to linux-staging
> 
> Sorry, but no, I can not take this driver into the kernel tree until
> there is an open source user of the new api that you are creating with
> this driver.  This was discussed many times on the linux-kernel mailing
> list and at the Linux kernel summit a few months ago (see the summary at
> lwn.net about it.)
> 
> So please work on that first, and then we will be glad to revisit taking
> this kernel driver into the tree.
OK, I will do that.
And after doing some clean up, try to take this code to the "real" linux tree.

Thanks,
Cai
> 
> Also, it is much simpler just to take a few hours and clean up the
> coding style issues yourself rather than relying on the community to do
> it for you over a few months.
> 
> thanks,
> 
> greg k-h