* Samsung's I2C controller The Samsung's I2C controller is used to interface with I2C devices. Required properties: - compatible: value should be either of the following. (a) "samsung, s3c2410-i2c", for i2c compatible with s3c2410 i2c. (b) "samsung, s3c2440-i2c", for i2c compatible with s3c2440 i2c. - reg: physical base address of the controller and length of memory mapped region. - interrupts: interrupt number to the cpu. - samsung,i2c-sda-delay: Delay (in ns) applied to data line (SDA) edges. - gpios: The order of the gpios should be the following: . The gpio specifier depends on the gpio controller. Optional properties: - samsung,i2c-slave-addr: Slave address in multi-master enviroment. If not specified, default value is 0. - samsung,i2c-max-bus-freq: Desired frequency in Hz of the bus. If not specified, the default value in Hz is 100000. Example: i2c@13870000 { compatible = "samsung,s3c2440-i2c"; reg = <0x13870000 0x100>; interrupts = <345>; samsung,i2c-sda-delay = <100>; samsung,i2c-max-bus-freq = <100000>; gpios = <&gpd1 2 0 /* SDA */ &gpd1 3 0 /* SCL */>; #address-cells = <1>; #size-cells = <0>; wm8994@1a { compatible = "wlf,wm8994"; reg = <0x1a>; }; };