Kernel-4.18.0-80.el8_i2c-cadence

Binding for the Cadence I2C controller

Required properties:

  • reg: Physical base address and size of the controller’s register area.
  • compatible: Should contain one of:
    * "cdns,i2c-r1p10"
    Note:    Use this when cadence i2c controller version 1.0 is used.
    * "cdns,i2c-r1p14"
    Note:    Use this when cadence i2c controller version 1.4 is used.
    
  • clocks: Input clock specifier. Refer to common clock bindings.
  • interrupts: Interrupt specifier. Refer to interrupt bindings.
  • #address-cells: Should be 1.
  • #size-cells: Should be 0.

Optional properties:

  • clock-frequency: Desired operating frequency, in Hz, of the bus.
  • clock-names: Input clock name, should be ‘pclk’.

Example:
i2c@e0004000 {
compatible = “cdns,i2c-r1p10”;
clocks = <&clkc 38>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
reg = <0xe0004000 0x1000>;
clock-frequency = <400000>;
#address-cells = <1>;
#size-cells = <0>;
};