Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH v8] i2c: virtio: add a virtio i2c frontend driver
To:     Viresh Kumar <viresh.kumar@linaro.org>,
        Jie Deng <jie.deng@intel.com>
Cc:     linux-i2c@vger.kernel.org,
        virtualization@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org, mst@redhat.com, wsa@kernel.org,
        jasowang@redhat.com, wsa+renesas@sang-engineering.com,
        andriy.shevchenko@linux.intel.com, conghui.chen@intel.com,
        arnd@arndb.de, kblaiech@mellanox.com,
        jarkko.nikula@linux.intel.com, Sergey.Semin@baikalelectronics.ru,
        rppt@kernel.org, loic.poulain@linaro.org, tali.perry1@gmail.com,
        u.kleine-koenig@pengutronix.de, bjorn.andersson@linaro.org,
        yu1.wang@intel.com, shuo.a.liu@intel.com, stefanha@redhat.com,
        pbonzini@redhat.com
References: <c193b92d8d22ba439bb1b260d26d4b76f57d4840.1615889867.git.jie.deng@intel.com>
 <20210316074409.2afwsaeqxuwvj7bd@vireshk-i7>
From:   "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Message-ID: <0dfff1ac-50bb-b5bc-72ea-880fd52ed60d@metux.net>
Date:   Thu, 18 Mar 2021 15:40:30 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.8.0
MIME-Version: 1.0
In-Reply-To: <20210316074409.2afwsaeqxuwvj7bd@vireshk-i7>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: tl
Content-Transfer-Encoding: 8bit
Precedence: bulk

On 16.03.21 08:44, Viresh Kumar wrote:

> FWIW, this limits this driver to support a single device ever. We
> can't bind multiple devices to this driver now. Yeah, perhaps we will
> never be required to do so, but who knows.

Actually, I believe multiple devices really should be possible.

The major benefit of virtio-i2c is either bridging certan real bus'es
into a confined workload, or creating virtual hw testbeds w/o having to
write a complete emulation (in this case, for dozens of different i2c
controllers) - and having multiple i2c interfaces in one machine isn't
exactly rare.


--mtx

-- 
---
Hinweis: unverschlüsselte E-Mails können leicht abgehört und manipuliert
werden ! Für eine vertrauliche Kommunikation senden Sie bitte ihren
GPG/PGP-Schlüssel zu.
---
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287