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[mirror_ubuntu-bionic-kernel.git] / Documentation / devicetree / bindings / i2c / i2c-cadence.txt
1 Binding for the Cadence I2C controller
2
3 Required properties:
4 - reg: Physical base address and size of the controller's register area.
5 - compatible: Compatibility string. Must be 'cdns,i2c-r1p10'.
6 - clocks: Input clock specifier. Refer to common clock bindings.
7 - interrupts: Interrupt specifier. Refer to interrupt bindings.
8 - #address-cells: Should be 1.
9 - #size-cells: Should be 0.
10
11 Optional properties:
12 - clock-frequency: Desired operating frequency, in Hz, of the bus.
13 - clock-names: Input clock name, should be 'pclk'.
14
15 Example:
16 i2c@e0004000 {
17 compatible = "cdns,i2c-r1p10";
18 clocks = <&clkc 38>;
19 interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
20 reg = <0xe0004000 0x1000>;
21 clock-frequency = <400000>;
22 #address-cells = <1>;
23 #size-cells = <0>;
24 };