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Message-ID: <54212E13.9000004@atmel.com>
Date: Tue, 23 Sep 2014 10:23:47 +0200
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Organization: atmel
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To: Boris BREZILLON <boris.brezillon@free-electrons.com>,
        "Jean-Christophe Plagniol-Villard" <plagnioj@jcrosoft.com>,
        Alexandre Belloni <alexandre.belloni@free-electrons.com>,
        Andrew Victor <linux@maxim.org.za>,
        Alessandro Zummo <a.zummo@towertech.it>, <rtc-linux@googlegroups.com>,
        "Samuel Ortiz" <sameo@linux.intel.com>,
        Lee Jones <lee.jones@linaro.org>, Johan Hovold <jhovold@gmail.com>
CC: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        "Mark Rutland" <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 9/9] mfd: syscon: add Atmel GPBR DT bindings documention
References: <1411400563-570-1-git-send-email-boris.brezillon@free-electrons.com> <1411400563-570-10-git-send-email-boris.brezillon@free-electrons.com>
In-Reply-To: <1411400563-570-10-git-send-email-boris.brezillon@free-electrons.com>
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On 22/09/2014 17:42, Boris BREZILLON :
> 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@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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@fffffd50 {
> +	compatible = "atmel,at91sam9260-gpbr", "syscon";
> +	reg = <0xfffffd50 0x10>;
> +};
> 


-- 
Nicolas Ferre