1* Texas Instruments Davinci/Keystone I2C 2 3This file provides information, what the device node for the 4davinci/keystone i2c interface contains. 5 6Required properties: 7- compatible: "ti,davinci-i2c" or "ti,keystone-i2c"; 8- reg : Offset and length of the register set for the device 9- clocks: I2C functional clock phandle. 10 For 66AK2G this property should be set per binding, 11 Documentation/devicetree/bindings/clock/ti,sci-clk.yaml 12 13SoC-specific Required Properties: 14 15The following are mandatory properties for Keystone 2 66AK2G SoCs only: 16 17- power-domains: Should contain a phandle to a PM domain provider node 18 and an args specifier containing the I2C device id 19 value. This property is as per the binding, 20 Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml 21 22Recommended properties : 23- interrupts : standard interrupt property. 24- clock-frequency : desired I2C bus clock frequency in Hz. 25- ti,has-pfunc: boolean; if defined, it indicates that SoC supports PFUNC 26 registers. PFUNC registers allow to switch I2C pins to function as 27 GPIOs, so they can be toggled manually. 28 29Example (enbw_cmc board): 30 i2c@1c22000 { 31 compatible = "ti,davinci-i2c"; 32 reg = <0x22000 0x1000>; 33 clock-frequency = <100000>; 34 interrupts = <15>; 35 interrupt-parent = <&intc>; 36 #address-cells = <1>; 37 #size-cells = <0>; 38 39 dtt@48 { 40 compatible = "national,lm75"; 41 reg = <0x48>; 42 }; 43 }; 44