| * 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.txt | |
| 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.txt | |
| 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 by 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>; | |
| }; | |
| }; |