Date:   Thu, 26 Jan 2023 12:21:06 +0200
From:   Andy Shevchenko <andriy.shevchenko@intel.com>
To:     Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Cc:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Wolfram Sang <wsa@kernel.org>,
        Luca Ceresoli <luca.ceresoli@bootlin.com>,
        Matti Vaittinen <Matti.Vaittinen@fi.rohmeurope.com>,
        Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Peter Rosin <peda@axentia.se>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Michael Tretter <m.tretter@pengutronix.de>,
        Shawn Tu <shawnx.tu@intel.com>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Mike Pagano <mpagano@gentoo.org>,
        Krzysztof =?utf-8?Q?Ha=C5=82asa?= <khalasa@piap.pl>,
        Marek Vasut <marex@denx.de>
Subject: Re: [PATCH v7 5/7] media: i2c: add DS90UB960 driver
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On Thu, Jan 26, 2023 at 10:41:47AM +0200, Tomi Valkeinen wrote:
> On 25/01/2023 17:27, Andy Shevchenko wrote:

...

> > But I probably don't understand the ATR structure and what exactly we need to
> > pass to it, perhaps it also can be replaced with properties (note, that we have
> > some interesting ones that called references, which is an alternative to DT
> > phandle).
> 
> Well, maybe this needs a Linux bus implementation. I'm not that familiar
> with implementing a bus, but I think that would make it easier to share data
> between the deserializer and the serializer. A bus sounds a bit like an
> overkill for a 1-to-1 connection, used by a few drivers, but maybe it
> wouldn't be too much code.

Have you looked at auxiliary bus (appeared a few releases ago in kernel)?

-- 
With Best Regards,
Andy Shevchenko