linux-kernel - Re: [PATCH 1/3] Documentation: dtb: xgene: Add hwmon dts binding documentation

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Message-ID: <20160523203044.GA17450@rob-hp-laptop>
Date:	Mon, 23 May 2016 15:30:44 -0500
From:	Rob Herring <robh@...nel.org>
To:	Hoan Tran <hotran@....com>
Cc:	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Jonathan Corbet <corbet@....net>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	Duc Dang <dhdang@....com>, lho@....com,
	linux-hwmon@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/3] Documentation: dtb: xgene: Add hwmon dts binding
 documentation

On Mon, May 16, 2016 at 09:17:25AM -0700, Hoan Tran wrote:
> This patch adds the APM X-Gene hwmon device tree node documentation.
> 
> Signed-off-by: Hoan Tran <hotran@....com>
> ---
>  .../devicetree/bindings/hwmon/apm-xgene-hwmon.txt          | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
> new file mode 100644
> index 0000000..49a482e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
> @@ -0,0 +1,14 @@
> +APM X-Gene hwmon driver
> +
> +Hwmon driver accesses sensors over the "SLIMpro" mailbox.

DT bindings describe h/w, not driver data. I'm not sure this belongs in 
DT and perhaps the devices for the mailbox should be created by the 
mailbox driver.

> +
> +Required properties :
> + - compatible : should be "apm,xgene-slimpro-hwmon"
> + - mboxes : use the label reference for the mailbox as the first parameter.
> +	    The second parameter is the channel number.

When do you expect this to be different mailbox numbers? 

> +
> +Example :
> +	hwmonslimpro {
> +		compatible = "apm,xgene-slimpro-hwmon";
> +		mboxes = <&mailbox 7>;
> +	};
> -- 
> 1.9.1
>