| * Texas Instruments Davinci/Keystone I2C |
| |
| This file provides information, what the device node for the |
| davinci/keystone i2c interface contains. |
| |
| Required properties: |
| - compatible: "ti,davinci-i2c" or "ti,keystone-i2c"; |
| - reg : Offset and length of the register set for the device |
| - clocks: I2C functional clock phandle. |
| For 66AK2G this property should be set per binding, |
| Documentation/devicetree/bindings/clock/ti,sci-clk.yaml |
| |
| SoC-specific Required Properties: |
| |
| The following are mandatory properties for Keystone 2 66AK2G SoCs only: |
| |
| - power-domains: Should contain a phandle to a PM domain provider node |
| and an args specifier containing the I2C device id |
| value. This property is as per the binding, |
| Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml |
| |
| Recommended properties : |
| - interrupts : standard interrupt property. |
| - clock-frequency : desired I2C bus clock frequency in Hz. |
| - ti,has-pfunc: boolean; if defined, it indicates that SoC supports PFUNC |
| registers. PFUNC registers allow to switch I2C pins to function as |
| GPIOs, so they can be toggled manually. |
| |
| Example (enbw_cmc board): |
| i2c@1c22000 { |
| compatible = "ti,davinci-i2c"; |
| reg = <0x22000 0x1000>; |
| clock-frequency = <100000>; |
| interrupts = <15>; |
| interrupt-parent = <&intc>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| dtt@48 { |
| compatible = "national,lm75"; |
| reg = <0x48>; |
| }; |
| }; |
