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Date:   Wed, 15 Apr 2020 11:46:57 +0200
From:   Wolfram Sang <wsa@the-dreams.de>
To:     Kieran Bingham <kieran@ksquared.org.uk>
Cc:     Wolfram Sang <wsa+renesas@sang-engineering.com>,
        linux-i2c@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
        linux-i3c@lists.infradead.org,
        Niklas =?utf-8?Q?S=C3=B6derlund?= <niklas.soderlund@ragnatech.se>,
        Luca Ceresoli <luca@lucaceresoli.net>,
        Jacopo Mondi <jacopo@jmondi.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Vladimir Zapolskiy <vz@mleia.com>,
        linux-kernel@vger.kernel.org,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Rob Herring <robh@kernel.org>
Subject: Re: [RFC PATCH v2 2/6] i2c: allow DT nodes without 'compatible'
Message-ID: <20200415094656.GE1141@ninjato>
References: <20200318150059.21714-1-wsa+renesas@sang-engineering.com>
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> > Sometimes, we have unknown devices in a system and still want to block
> > their address. For that, we allow DT nodes with only a 'reg' property.
> > These devices will be bound to the "dummy" driver but with the name
> > "reserved". That way, we can distinguish them and even hand them over to
> > the "dummy" driver later when they are really requested using
> > i2c_new_ancillary_device().
>=20
> Oh how I long to be able to give these 'identifiable names' within the
> system, but that will probably mess up all the driver matching and
> binding, so would be quite tricky perhaps.

I haven't found a way yet to use 'name' to give more meaningful
descriptions to dummies. My best bet so far is to use additional links
in sysfs.


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