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Date:   Wed, 4 Jan 2023 10:26:16 +0200
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Subject: Re: [PATCH v5 4/8] dt-bindings: media: add bindings for TI DS90UB953
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To:     Rob Herring <robh@kernel.org>
Cc:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Wolfram Sang <wsa@kernel.org>,
        Luca Ceresoli <luca.ceresoli@bootlin.com>,
        Andy Shevchenko <andriy.shevchenko@intel.com>,
        Matti Vaittinen <Matti.Vaittinen@fi.rohmeurope.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>,
        Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
        Michael Tretter <m.tretter@pengutronix.de>,
        Shawn Tu <shawnx.tu@intel.com>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Mike Pagano <mpagano@gentoo.org>,
        =?UTF-8?Q?Krzysztof_Ha=c5=82asa?= <khalasa@piap.pl>,
        Marek Vasut <marex@denx.de>
References: <20221208104006.316606-1-tomi.valkeinen@ideasonboard.com>
 <20221208104006.316606-5-tomi.valkeinen@ideasonboard.com>
 <20221209212744.GA3868990-robh@kernel.org>
From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
In-Reply-To: <20221209212744.GA3868990-robh@kernel.org>
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Hi Rob,

On 09/12/2022 23:27, Rob Herring wrote:
> On Thu, Dec 08, 2022 at 12:40:02PM +0200, Tomi Valkeinen wrote:
>> Add DT bindings for TI DS90UB953 FPDLink-3 Serializer.
> 
> Seems like this and DS90UB913 binding could be combined. I couldn't spot
> a difference.

They are indeed quite similar, but there are a few diffs, especially 
after fixing Laurent's review comments.

E.g, as the UB913 is a parallel video serializer and the UB953 is a 
CSI-2 serializer, the input port on UB913 has 'pclk-sample' property but 
UB953 has 'data-lanes' property. The descriptions differ also a bit for 
the above mentioned difference.

The above points would still allow combining the bindings, though. But I 
feel the UB913 is somewhat a different class of serializer device 
compared to UB953 (and UB971 which the UB953's binding also supports), 
so my gut feeling says it's better to keep them separate. But I don't 
have much experience on maintaining such bindings, and, afaik, we could 
always split the bindings later if needed.

So... Do you have a preference on either way? Or maybe we can come back 
to this after I send the next version with the updates.

> In the subjects, drop 'binding for'. The prefix says this is a binding.
> Maybe add 'Serializer'.

Ok.

  Tomi