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

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

[Philippe Reynes]

This adds documentation of device tree bindings for the
mxc rtc.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Philippe Reynes <tremyfr@gmail.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".
+- 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@10007000 {
+	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

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

[Rob Herring]

On Sat, Jun 20, 2015 at 12:12 PM, Philippe Reynes <tremyfr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 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-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
> Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
> Cc: Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>
> Cc: Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Signed-off-by: Philippe Reynes <tremyfr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  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@10007000 {
> +       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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Re: [PATCH v3 5/6] dt-binding: document the binding for mxc rtc

[Alexandre Belloni]

On 22/06/2015 at 08:59:06 -0500, Rob Herring wrote :
> What about newer versions with the secure functionality. IIRC, that
> was in MX31 and later.
> 

Aren't those covered by the snvs driver?


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Re: [PATCH v3 5/6] dt-binding: document the binding for mxc rtc

[Rob Herring]

On Mon, Jun 22, 2015 at 2:27 PM, Alexandre Belloni <alexandre.belloni@free-electrons.com> wrote:
> On 22/06/2015 at 08:59:06 -0500, Rob Herring wrote :
>> What about newer versions with the secure functionality. IIRC, that
>> was in MX31 and later.
>>
>
> Aren't those covered by the snvs driver?

Maybe so. I haven't checked.

Rob