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

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Message-ID: <20211201031554.GA865@LAPTOP-UKSR4ENP.internal.baidu.com>
Date:   Wed, 1 Dec 2021 11:15:54 +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 15:14:44, Cai Huoqing wrote:
> 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
Recently arm china contact me for some opensource issue. 

Reply here -

Hi arm-china folks, it's appropriate for you to submit this driver
for GPL,
be glad to revisit the opensource kernel mode and userspace driver:).

If you have any questions, reply here directly.

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