linux-kernel - Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver

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Message-ID: <5bb91030-c4be-a3c1-fe25-337999348e9a@intel.com>
Date:   Wed, 8 Sep 2021 10:07:29 +0800
From:   Jie Deng <jie.deng@...el.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        "Michael S. Tsirkin" <mst@...hat.com>
Cc:     linux-i2c@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, wsa@...nel.org,
        wsa+renesas@...g-engineering.com, arnd@...db.de,
        jasowang@...hat.com, andriy.shevchenko@...ux.intel.com,
        yu1.wang@...el.com, shuo.a.liu@...el.com, conghui.chen@...el.com,
        stefanha@...hat.com, gregkh@...uxfoundation.org
Subject: Re: [PATCH v14] i2c: virtio: add a virtio i2c frontend driver


On 2021/9/6 12:43, Viresh Kumar wrote:
>
>> Let's let the dust settle on them then, then
>> resubmit?
> It doesn't break anything for now since we don't have much users and
> we know zero length transfers don't work. I will submit the necessary
> changes once spec is finalized.

Agree. The currently merged spec and driver are consistent.

We can support zero length request once the following spec change is 
accepted.

[PATCH V3] virtio: i2c: Allow zero-length transactions 
(https://lists.oasis-open.org/archives/virtio-dev/202109/msg00004.html)

So, can we start a ballot for this new feature ?