linux-kernel - Re: [PATCH v4 9/9] mfd: syscon: add Atmel GPBR DT bindings documention

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Message-ID: <20140917163405.GM30918@lee--X1>
Date:	Wed, 17 Sep 2014 09:34:05 -0700
From:	Lee Jones <lee.jones@...aro.org>
To:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	rtc-linux@...glegroups.com, Johan Hovold <jhovold@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 9/9] mfd: syscon: add Atmel GPBR DT bindings
 documention

On Thu, 11 Sep 2014, Boris BREZILLON wrote:

> The GPBR block provides a set of battery-backed registers that can be used
> to save data which need to be kept when the system is powered down and
> VDD-core is maintained by an external battery.
> 
> A typical usage is the RTT block (when used as an RTC) which needs one of
> those registers to save the current time.
> 
> Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
> ---
>  Documentation/devicetree/bindings/mfd/atmel,gpbr.txt | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> new file mode 100644
> index 0000000..a285695
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> @@ -0,0 +1,15 @@
> +* Device tree bindings for Atmel GPBR (General Purpose Backup Registers)
> +
> +The GPBR are a set of battery-backed registers.
> +
> +Required properties:
> +- compatible:		"atmel,at91sam9260-gpbr", "syscon"
> +- reg:			contains offset/length value of the GPBR memory
> +			region.
> +
> +Example:
> +
> +gpbr: gpbr@...ffd50 {

Is something referencing this node via phandle?  If not, please remove
the label.

> +	compatible = "atmel,at91sam9260-gpbr", "syscon";
> +	reg = <0xfffffd50 0x10>;
> +};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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