Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Wed, 26 Feb 2020 10:30:54 -0600
From:   Rob Herring <robh@kernel.org>
To:     Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc:     linux-i2c@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
        linux-i3c@lists.infradead.org,
        Kieran Bingham <kieran@ksquared.org.uk>,
        Niklas =?iso-8859-1?Q?S=F6derlund?= 
        <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, devicetree@vger.kernel.org,
        Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: Re: [RFC PATCH 3/7] i2c: allow DT nodes without 'compatible'
Message-ID: <20200226163054.GA26533@bogus>
References: <20200220172403.26062-1-wsa+renesas@sang-engineering.com>
 <20200220172403.26062-4-wsa+renesas@sang-engineering.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20200220172403.26062-4-wsa+renesas@sang-engineering.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, 20 Feb 2020 18:23:59 +0100, Wolfram Sang wrote:
> 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().
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-ocores.txt | 1 -
>  Documentation/devicetree/bindings/i2c/i2c.txt        | 4 +++-
>  drivers/i2c/i2c-core-base.c                          | 1 +
>  drivers/i2c/i2c-core-of.c                            | 8 +++-----
>  drivers/i2c/i2c-core.h                               | 1 +
>  5 files changed, 8 insertions(+), 7 deletions(-)
> 

Acked-by: Rob Herring <robh@kernel.org>