Initial commit; kernel source import

Documentation/devicetree/bindings/i2c/i2c-mxs.txt

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+* Freescale MXS Inter IC (I2C) Controller
+
+Required properties:
+- compatible: Should be "fsl,<chip>-i2c"
+- reg: Should contain registers location and length
+- interrupts: Should contain ERROR interrupt number
+- clock-frequency: Desired I2C bus clock frequency in Hz.
+                   Only 100000Hz and 400000Hz modes are supported.
+- dmas: DMA specifier, consisting of a phandle to DMA controller node
+  and I2C DMA channel ID.
+  Refer to dma.txt and fsl-mxs-dma.txt for details.
+- dma-names: Must be "rx-tx".
+
+Examples:
+
+i2c0: i2c@80058000 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	compatible = "fsl,imx28-i2c";
+	reg = <0x80058000 2000>;
+	interrupts = <111>;
+	clock-frequency = <100000>;
+	dmas = <&dma_apbx 6>;
+	dma-names = "rx-tx";
+};