[PATCH v2] docs: dt-bindings: add DTS Coding Style document

[Andrew Lunn]

> +Naming and Valid Characters
> +---------------------------
> +
> +1. Node and property names are allowed to use only:
> +
> +   * lowercase characters: [a-z]
> +   * digits: [0-9]
> +   * dash: -
> +
> +2. Labels are allowed to use only:
> +
> +   * lowercase characters: [a-z]
> +   * digits: [0-9]
> +   * underscore: _
> +
> +3. Unit addresses should use lowercase hex, without leading zeros (padding).
> +
> +4. Hex values in properties, e.g. "reg", should use lowercase hex.  The address
> +   part can be padded with leading zeros.
> +
> +Example::
> +
> +	gpi_dma2: dma-controller at 800000 {
> +		compatible = "qcom,sm8550-gpi-dma", "qcom,sm6350-gpi-dma";
> +		reg = <0x0 0x00800000 0x0 0x60000>;
> +	}

Hi Krzysztof

What i like about the Linux Coding Style is that most sections have a
Rationale. I like the way it explains the 'Why?'. It makes it feel
less arbitrary. When it does not seem arbitrary, but reasoned, i find
it easier to follow.

Could you add rationale like the Coding Style?

      Andrew