On 16/02/2024 11:40, Théo Lebrun wrote: > Hello, > > On Fri Feb 16, 2024 at 11:33 AM CET, Krzysztof Kozlowski wrote: >> On 16/02/2024 11:18, Théo Lebrun wrote: >>> >>>>> + mobileye,id: >>>>> + $ref: /schemas/types.yaml#/definitions/uint32 >>>>> + description: Platform-wide controller ID (integer starting from zero). >>>> >>>> instance indexes are a NAK. You can use i2cN aliases if you must. >>>> >>>> Why do you need it? To access OLB? If so, add cell args to the OLB >>>> phandle instead. >>> >>> Why we do what we do: I2C controller must write a 2 bit value depending >>> on the bus speed. All I2C controllers write into the same register. >> >> Which register? Your devices do not share IO address space. > > mobileye,olb is a prop with a phandle to a syscon. That syscon contains > the register we are interested in. So exactly what Rob said... I don't understand why you have chosen to go with alias. Best regards, Krzysztof