[PATCH v6 3/4] ARM: dts: mvebu: Introduce a new compatible string for mv64xxx-i2c

Wolfram Sang wsa at the-dreams.de
Thu Aug 22 12:22:43 EDT 2013


> --- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
> @@ -5,6 +5,8 @@ Required properties :
>  
>   - reg             : Offset and length of the register set for the device
>   - compatible      : Should be "marvell,mv64xxx-i2c" or "allwinner,sun4i-i2c"
> +                     or for controller which support the I2C Transaction
> +                     Generator "marvell,mv64xxx-i2c","marvell,mv7230-i2c"

Too complicated IMO:
+			or "marvell,mv7230-i2c".

DT creators don't need to know about transaction generators. They just
supply the compatible string and the driver knows the details.

> +For a controller which support the I2C Transaction Generator:

"For the Armada XP" - there might be later IP cores on later SoC with
transaction generators and different errata. They will just get a new
compatible and the driver know the details.

> +
> +	i2c at 11000 {
> +		compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
> +		reg = <0x11000 0x100>;
> +		interrupts = <29>;
> +		clock-frequency = <100000>;
> +	};
> -- 
> 1.8.1.2
> 
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