Re: [PATCH 2/4] rtc: isl1208: Add device tree binding documentation

[Rob Herring <robh@kernel.org>]

On Tue, Jan 23, 2018 at 01:17:59PM +0100, Michael Grzeschik wrote:
> From: Denis Osterland <Denis.Osterland@diehl.com>
> 
> Wrote documentation for ISL1208, ISL1218 device tree
> binding with short examples.
> 
> Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com>
> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
> ---
>  .../devicetree/bindings/rtc/intersil,isl1208.txt   | 35 ++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/intersil,isl1208.txt

A couple of nits, otherwise:

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

> 
> diff --git a/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt b/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt
> new file mode 100644
> index 0000000000000..a54e99feae1ca
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt
> @@ -0,0 +1,35 @@
> +Intersil ISL1208, ISL1218 I2C RTC/Alarm chip
> +
> +ISL1208 is a trivial I2C device (it has simple device tree bindings,
> +consisting of a compatible field, an address and possibly an interrupt
> +line).
> +
> +Required properties supported by the device:
> +
> + - "compatible": must be one of
> +	"isil,isl1208"
> +	"isil,isl1218"
> + - "reg": I2C bus address of the device
> +
> +Optional properties:
> +
> + - "interrupt-parent", "interrupts", "interrupts-extended":
> +   for passing the interrupt line of the SoC connected to #IRQ pin
> +   of the RTC chip.
> +
> +
> +Example isl1208 node without #IRQ pin connected:
> +
> +	isl1208: isl1208@68 {

rtc@68

> +		compatible = "isil,isl1208";
> +		reg = <0x68>;
> +	};
> +
> +Example isl1208 node with #IRQ pin connected to SoC gpio1 pin 12:
> +
> +	isl1208: isl1208@68 {

rtc@68

> +		compatible = "isil,isl1208";
> +		reg = <0x68>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
> +	};
> -- 
> 2.11.0
> 
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