linux-kernel - Re: [RFC PATCH v2 09/16] dt-bindings: media: i2c: max96712: add support for I2C MUX

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Message-ID: <174171971116.3980957.12739233832407896359.robh@kernel.org>
Date: Tue, 11 Mar 2025 14:01:51 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Cosmin Tanislav <demonsingur@...il.com>
Cc: Ross Burton <ross.burton@....com>,
	Julien Massot <julien.massot@...labora.com>,
	Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
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	Nícolas F . R . A . Prado <nfraprado@...labora.com>,
	Laurentiu Palcu <laurentiu.palcu@....nxp.com>,
	linux-gpio@...r.kernel.org, Bartosz Golaszewski <brgl@...ev.pl>,
	Eric Biggers <ebiggers@...gle.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Kieran Bingham <kieran.bingham@...asonboard.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...db.de>, Liam Girdwood <lgirdwood@...il.com>,
	linux-media@...r.kernel.org, Will Deacon <will@...nel.org>,
	Javier Carrasco <javier.carrasco@...fvision.net>,
	linux-staging@...ts.linux.dev,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Niklas Söderlund <niklas.soderlund@...natech.se>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
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	Catalin Marinas <catalin.marinas@....com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Taniya Das <quic_tdas@...cinc.com>, Mark Brown <broonie@...nel.org>,
	Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
	Tommaso Merciai <tomm.merciai@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Cosmin Tanislav <cosmin.tanislav@...log.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Bjorn Andersson <quic_bjorande@...cinc.com>,
	Zhi Mao <zhi.mao@...iatek.com>,
	Ihor Matushchak <ihor.matushchak@...box.net>,
	Dongcheng Yan <dongcheng.yan@...el.com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [RFC PATCH v2 09/16] dt-bindings: media: i2c: max96712: add
 support for I2C MUX


On Sun, 09 Mar 2025 10:48:01 +0200, Cosmin Tanislav wrote:
> MAX96712 and MAX96724 have more than one GMSL2 link, and each link is
> capable of connecting to a separate serializer. If these serializers
> have the same CFG pins configuration, they will also have the same I2C
> address, causing conflicts unless the deserializer muxes the I2C
> channels. Moreover, the serializers can have the same hardware attached
> to their respective I2C bus.
> 
> The MAX96712 and MAX96724 suppot I2C channel muxing via the GMSL2 link
> to facilitate communication to each of the connected serializers.
> 
> Document this capability.
> 
> Signed-off-by: Cosmin Tanislav <demonsingur@...il.com>
> ---
>  .../bindings/media/i2c/maxim,max96712.yaml          | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>