[rtc-linux] Re: [PATCH v2 1/2] Documentation: devicetree: add epson rx6110 binding

[Rob Herring <robh@kernel.org>]

On Tue, Dec 01, 2015 at 02:48:19PM +0100, Steffen Trumtrar wrote:
> Add the binding documentation for the Epson RX6110 RTC.
> 
> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
> ---
> Changes since v1:
> 	- added i2c binding
> 	- compatible: "epson,rtc-rx6110" -> "epson,rx6110"
> 	- fixed typo
> 
>  .../devicetree/bindings/rtc/epson,rx6110.txt       | 39 ++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/epson,rx6110.txt
> 
> diff --git a/Documentation/devicetree/bindings/rtc/epson,rx6110.txt b/Documentation/devicetree/bindings/rtc/epson,rx6110.txt
> new file mode 100644
> index 000000000000..8c3d06f117e8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/epson,rx6110.txt
> @@ -0,0 +1,39 @@
> +Epson RX6110 Real Time Clock
> +============================
> +
> +The Epson RX6110 can be used with SPI or I2C busses. The kind of
> +bus depends on the SPISEL pin and can not be configured via software.
> +
> +I2C mode
> +--------
> +
> +Required properties:
> +  - compatible: should be: "epson,rx6110"
> +  - reg : offset and length of the register set for the device

For i2c, there is no size cell. Otherwise,

Acked-by: Rob Herring <robh@kernel.org>

> +
> +Example:
> +
> +	rtc: rtc@32 {
> +		compatible = "epson,rx6110"
> +		reg = <0x32 0x32>;
> +	};
> +
> +SPI mode
> +--------
> +
> +Required properties:
> +  - compatible: should be: "epson,rx6110"
> +  - reg: chip select number
> +  - spi-cs-high: RX6110 needs chipselect high
> +  - spi-cpha: RX6110 works with SPI shifted clock phase
> +  - spi-cpol: RX6110 works with SPI inverse clock polarity
> +
> +Example:
> +
> +	rtc: rtc@3 {
> +		compatible = "epson,rx6110"
> +		reg = <3>
> +		spi-cs-high;
> +		spi-cpha;
> +		spi-cpol;
> +	};
> -- 
> 2.6.2
> 

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