linux-kernel - Re: [PATCH 04/10] i2c: i2c-mux-i2cs: Add device tree bindings

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Date:   Mon, 10 Oct 2016 15:25:55 -0500
From:   Rob Herring <robh@...nel.org>
To:     Pantelis Antoniou <pantelis.antoniou@...sulko.com>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Frank Rowand <frowand.list@...il.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>,
        Jean Delvare <jdelvare@...e.com>,
        Peter Rosin <peda@...ntia.se>,
        Avirup Banerjee <abanerjee@...iper.net>,
        Georgi Vlaev <gvlaev@...iper.net>,
        Guenter Roeck <linux@...ck-us.net>,
        JawaharBalaji Thirumalaisamy <jawaharb@...iper.net>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-i2c@...r.kernel.org,
        linux-leds@...r.kernel.org, linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 04/10] i2c: i2c-mux-i2cs: Add device tree bindings

On Fri, Oct 07, 2016 at 06:21:03PM +0300, Pantelis Antoniou wrote:
> From: Georgi Vlaev <gvlaev@...iper.net>
> 
> Add binding document for the i2c mux driver of Juniper's I2CS FPGA.
> 
> Signed-off-by: Georgi Vlaev <gvlaev@...iper.net>
> [Ported from Juniper kernel]
> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@...sulko.com>
> ---
>  .../devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt   | 27 ++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> 
> diff --git a/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> new file mode 100644
> index 0000000..03d917f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> @@ -0,0 +1,27 @@
> +* Juniper I2C Mux on I2CS
> +
> +	I2C mux driver for switching the RE access to the FPC i2c bus.

What is RE?

> +	Compatible with the FPC variant of the I2CS.
> +
> +Required properties:
> +
> +  - compatible: "jnx,i2cs-mux-i2cs".
> +
> +The following required properties are defined externally:
> +
> +  - Standard I2C mux properties. See i2c-mux.txt in this directory.
> +  - I2C child bus nodes. See i2c-mux.txt in this directory.
> +
> +Example:
> +
> +fpc0_mux {
> +	compatible = "jnx,i2c-mux-i2cs";
> +	#address-cells = <1>;
> +	#size-cells = <0>;

Needs some address? 

> +
> +	fpc0i2c0: i2c@0 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		reg = <0>;
> +	};
> +};
> -- 
> 1.9.1
>