1* Samsung's I2C controller
2
3The Samsung's I2C controller is used to interface with I2C devices.
4
5Required properties:
6  - compatible: value should be either of the following.
7      (a) "samsung, s3c2410-i2c", for i2c compatible with s3c2410 i2c.
8      (b) "samsung, s3c2440-i2c", for i2c compatible with s3c2440 i2c.
9  - reg: physical base address of the controller and length of memory mapped
10    region.
11  - interrupts: interrupt number to the cpu.
12  - samsung,i2c-sda-delay: Delay (in ns) applied to data line (SDA) edges.
13  - gpios: The order of the gpios should be the following: <SDA, SCL>.
14    The gpio specifier depends on the gpio controller.
15
16Optional properties:
17  - samsung,i2c-slave-addr: Slave address in multi-master enviroment. If not
18    specified, default value is 0.
19  - samsung,i2c-max-bus-freq: Desired frequency in Hz of the bus. If not
20    specified, the default value in Hz is 100000.
21
22Example:
23
24	i2c@13870000 {
25		compatible = "samsung,s3c2440-i2c";
26		reg = <0x13870000 0x100>;
27		interrupts = <345>;
28		samsung,i2c-sda-delay = <100>;
29		samsung,i2c-max-bus-freq = <100000>;
30		gpios = <&gpd1 2 0 /* SDA */
31			 &gpd1 3 0 /* SCL */>;
32		#address-cells = <1>;
33		#size-cells = <0>;
34
35		wm8994@1a {
36			compatible = "wlf,wm8994";
37			reg = <0x1a>;
38		};
39	};
40