linux-kernel - Re: [PATCH v3 5/6] dt-binding: document the binding for mxc rtc

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Date:	Mon, 22 Jun 2015 08:59:06 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Philippe Reynes <tremyfr@...il.com>
Cc:	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	"kernel@...gutronix.de" <kernel@...gutronix.de>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	rtc-linux@...glegroups.com, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 5/6] dt-binding: document the binding for mxc rtc

On Sat, Jun 20, 2015 at 12:12 PM, Philippe Reynes <tremyfr@...il.com> wrote:
> This adds documentation of device tree bindings for the
> mxc rtc.

Perhaps don't further propagate the long dead MXC name and use "imx"
everywhere. What the Linux driver is called doesn't matter here.

> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Pawel Moll <pawel.moll@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
> Cc: Kumar Gala <galak@...eaurora.org>
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Philippe Reynes <tremyfr@...il.com>
> ---
>  Documentation/devicetree/bindings/rtc/rtc-mxc.txt |   27 +++++++++++++++++++++
>  1 files changed, 27 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/rtc/rtc-mxc.txt
>
> diff --git a/Documentation/devicetree/bindings/rtc/rtc-mxc.txt b/Documentation/devicetree/bindings/rtc/rtc-mxc.txt
> new file mode 100644
> index 0000000..5505493
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/rtc-mxc.txt
> @@ -0,0 +1,27 @@
> +* Real Time Clock of the i.MX SoCs
> +
> +RTC controller for the i.MX SoCs
> +
> +Required properties:
> +- compatible: Should be "fsl,imx1-rtc" or "fsl,imx21-rtc".

What about newer versions with the secure functionality. IIRC, that
was in MX31 and later.

> +- reg: physical base address of the controller and length of memory mapped
> +  region.
> +- interrupts: IRQ line for the RTC.
> +- clocks: should contain two entries:
> +  * one for the input reference
> +  * one for the the SoC RTC
> +- clock-names: should contain:
> +  * "rtc" for the input reference clock
> +  * "ipg" for the SoC RTC clock
> +
> +Example:
> +
> +rtc@...07000 {
> +       compatible = "fsl,imx21-rtc";
> +       reg = <0x10007000 0x1000>;
> +       interrupts = <22>;
> +       clocks = <&clks IMX27_CLK_CKIL>,
> +                <&clks IMX27_CLK_RTC_IPG_GATE>;
> +       clock-names = "rtc, "ipg";
> +       status = "disabled";
> +};
> --
> 1.7.4.4
>
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