UniPhier I2C controller (FIFO-builtin)Required properties:- compatible: should be "socionext,uniphier-fi2c".- #address-cells: should be 1.- #size-cells: should be 0.- reg: offset and length of the register set for the device.- interrupts: a single interrupt specifier.- clocks: phandle to the input clock.Optional properties:- clock-frequency: desired I2C bus frequency in Hz. The maximum supported value is 400000. Defaults to 100000 if not specified.Examples: i2c0: i2c@58780000 { compatible = "socionext,uniphier-fi2c"; reg = <0x58780000 0x80>; #address-cells = <1>; #size-cells = <0>; interrupts = <0 41 4>; clocks = <&i2c_clk>; clock-frequency = <100000>; };