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* Wondermedia I2C Controller

Required properties :

 - compatible : should be "wm,wm8505-i2c"
 - reg : Offset and length of the register set for the device
 - interrupts : <IRQ> where IRQ is the interrupt number
 - clocks : phandle to the I2C clock source

Optional properties :

 - clock-frequency : desired I2C bus clock frequency in Hz.
	Valid values are 100000 and 400000.
	Default to 100000 if not specified, or invalid value.

Example :

	i2c_0: i2c@d8280000 {
		compatible = "wm,wm8505-i2c";
		reg = <0xd8280000 0x1000>;
		interrupts = <19>;
		clocks = <&clki2c0>;
		clock-frequency = <400000>;
	};