[deliverable/linux.git] / Documentation / devicetree / bindings / i2c / i2c-mxs.txt

* 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";
};
Commit	Line	Data
b2378668 SG	1	* Freescale MXS Inter IC (I2C) Controller
	2
	3	Required properties:
	4	- compatible: Should be "fsl,<chip>-i2c"
	5	- reg: Should contain registers location and length
e5aba13d	6	- interrupts: Should contain ERROR interrupt number
cd4f2d4a MV	7	- clock-frequency: Desired I2C bus clock frequency in Hz.
cd4f2d4a MV	8	Only 100000Hz and 400000Hz modes are supported.
e5aba13d SG	9	- dmas: DMA specifier, consisting of a phandle to DMA controller node
	10	and I2C DMA channel ID.
	11	Refer to dma.txt and fsl-mxs-dma.txt for details.
	12	- dma-names: Must be "rx-tx".
b2378668 SG	13
	14	Examples:
	15
	16	i2c0: i2c@80058000 {
	17	#address-cells = <1>;
	18	#size-cells = <0>;
	19	compatible = "fsl,imx28-i2c";
	20	reg = <0x80058000 2000>;
e5aba13d	21	interrupts = <111>;
cd4f2d4a	22	clock-frequency = <100000>;
e5aba13d SG	23	dmas = <&dma_apbx 6>;
e5aba13d SG	24	dma-names = "rx-tx";
b2378668	25	};